CN103817198B - Car door upper groove bar Special punching cutting apparatus - Google Patents

Abstract

A grooved strip punching device, the bottom plate (2) is provided with a workpiece rest block (4) for clamping a grooved strip workpiece (1) standing sideways, a workpiece inner stopper (5), and a workpiece clamping mechanism, The workpiece clamping mechanism includes a clamping block (6) outside the workpiece and a pressure block (7) above the workpiece; the end punching mechanism includes a first oil cylinder (8) fixed on the rear side of the bottom plate (2), and the first oil cylinder (8) ) driven by the punching knife (9) punched from the back to the front; the shape and size of the outer clamping block (6) of the workpiece located at the end part and the shape and size of the notch of the punching knife (9) and the groove After the end of the strip workpiece (1) is punched, the part needs to be kept consistent; the punching knife (9) is a square-shaped geometric body in section, and the shape and size of the square-shaped gap (G) of the punching knife (9) are also consistent with the After punching the end of the grooved bar workpiece (1), the parts need to be kept consistent; and further provide a punching device for simultaneously punching the end of the grooved bar and the side piece, especially suitable for punching the upper guide groove of the car door.

Description

Dedicated punching device for the groove strip on the door

technical field

The invention relates to a special punching device for a groove bar, which is used for punching a groove bar workpiece whose cross section is concave like a guide groove on a car door, especially the end part punching device. It also relates to a punching knife suitable for punching the ends of grooved strips.

Background technique

In engineering, it is often necessary to perform multi-directional punching operations on some grooved workpieces with concave cross-sections, such as the upper guide grooves of automobile doors, as shown in Figure 1 and Figure 2, which are generally formed by continuous rolling process with metal strips , form the groove 1A surrounded by the upper side piece 1B, the groove bottom 1C, and the lower side piece 1D, and cut it online; often for its installation needs, the cut-off door upper guide groove needs to punch its end and side piece Cutting operation; wherein the end punching is the cutting of the ends of the upper side piece 1B, the bottom of the groove 1C, and the lower side piece 1D, and the side piece is punched into notches or punched holes; before punching, the ends are as shown in Figure 2 Left end, the dotted line takes the left part as the part to be cut off. After punching, as shown in Figure 1, the part to be cut off at the end includes the end of the upper side piece 1B located in the groove 1A, the end of the groove bottom 1C, and the end of the lower side piece 1D The excised piece at the end of the groove bottom 1C is the square piece as shown in the figure, the cutaway piece at the end of the upper side piece 1B is a long piece equal to the long piece of the square piece, and the cutaway piece at the end of the lower side piece 1D is a short piece with the square piece, etc. feature film.

In the prior art, punching is generally performed on different punching devices for each position, or the workpiece is moved in the same punching device and punched separately at different stations. Changes in the positioning of the workpiece will inevitably lead to poor punching accuracy and low operating efficiency. For example, the upper guide groove of the above-mentioned car door is generally punched in the following two ways: one way is to design punching devices in different directions, so that the end punching devices must be aimed at the upper side piece 1B, the groove bottom 1C, the lower Three punching stations are designed for each end of the side piece 1; another way is to design punching devices for the upper side piece 1B, groove bottom 1C, and lower side piece 1 respectively, and design punching tools for different positions . Due to its installation requirements, the above-mentioned door upper guide grooves have higher tolerance requirements for size, shape and position after the punching process. These two punching methods in the prior art are difficult to guarantee the processing accuracy requirements, and the work efficiency is low.

The present invention just solves this problem.

Contents of the invention

The technical problem to be solved by the present invention is to provide a special punching device for the end of the groove bar, and further provide a punching device for simultaneously punching the end of the groove bar and the side piece.

The technical solution adopted by the present invention to solve the problems of the technologies described above is:

A punching device for a grooved strip on a car door, comprising a bottom plate (2), characterized in that a workpiece rest block (4) for clamping a grooved strip workpiece (1) standing sideways is arranged on the bottom plate (2) With the workpiece clamping mechanism; the shape of the contact surface of the workpiece resting block (4) for contacting with the grooved bar workpiece (1) is matched with the corresponding surface of the grooved bar workpiece (1), and the workpiece resting block (4) is set for In the groove (1A) of the grooved workpiece (1), the workpiece inner side stopper (5) of the grooved workpiece (1) is supported, and the workpiece clamping mechanism includes a workpiece outer clamping block (6) driven by a power device and Press block (7) above the workpiece; the punching device also includes an end punching mechanism, and the end punching mechanism includes a first oil cylinder (8) fixedly installed on the rear side of the bottom plate (2) horizontally and vertically. ), driven by the first oil cylinder (8), the first punching knife (9) punched forward from the back; the clamping block (6) outside the workpiece and the pressing block (7) above the workpiece are located at the end part The shape and size are consistent with the part that needs to be retained after punching the end of the grooved bar workpiece (1); the first punching knife (9) is a square-shaped geometric body in section, and the first punching knife (9) The shape and size of the square notch (G) are also consistent with the portion to be retained after punching the end of the grooved bar workpiece (1).

The workpiece clamping mechanism includes a guide rail (13) and a second oil cylinder (14) fixedly installed on the bottom plate (2) horizontally and vertically, and a motor that slides along the guide rail (13) driven by the second oil cylinder (14). Sliding plate (15), described workpiece outer clamp block (6) is fixedly connected with sliding plate (15); The first cylinder (16) is also fixedly installed on the described sliding plate (15), the piston rod of this first air cylinder (16) It is fixedly connected with the connecting rod (17), the lower slope (18) is set under the inner end of the connecting rod (17), and the corresponding upper slope (19) is set above the front end of the pressure block (7) above the workpiece. A column (20) for sliding up and down of the pressing block (7) above the workpiece is arranged on the slide plate (15).

A connecting block (21) is fixedly arranged on the slide plate (15), and the outer clamping block (6) of the workpiece is fixedly connected with the connecting block (21), and is located below the pressing block (7) above the workpiece; the connecting block (21) More than one circular pit (37) is arranged above, and a compression spring is installed in the circular pit (37); the column (20) is also fixed on the connection block (21).

The piston rod of the first oil cylinder (8) is fixedly connected with the first punching knife (9) through its connecting rod, and a guide groove seat (22) is set on the bottom plate (2) where the first punching knife (9) is located. ), a guide groove (23) for sliding the first punching knife (9) is set in the guide groove seat (22).

The workpiece resting block (4) includes a base (24) fixed on the bottom plate (2) and an upper seat (25) fixed on the base (24).

The upper seat (25) also has an insert gap (26), and the contact part of the workpiece rest block (4) and the groove bar workpiece (1) is an insert (27) embedded in the insert gap (26). ).

The blade end of the first punching knife (9) is tapered, with a taper angle of 21° to 22°.

A side stopper (36) is provided on the side of the position where the grooved bar workpiece (1) of the punching device is to be placed.

The end punching mechanism is a pair, symmetrically distributed at the two ends of the workpiece to be installed according to the length of the grooved workpiece (1).

A shelf (3) is arranged above the bottom plate (2), and the punching device also includes a lower side piece punching mechanism; The third oil cylinder (10) on the top, the second punching knife (11) punched from top to bottom driven by the third oil cylinder (10); the shape and size of the second punching knife (11) Consistent with the punching target gap of the side piece of the workpiece, the edge of the second punching knife (11) is located in the groove (1A) of the groove bar workpiece (1) before punching, and the workpiece resting block (4) is provided for Accommodate the knife-accommodating notch (12) of the second punching knife (11) that punches down.

There are more than two punching mechanisms for the lower side piece, arranged side by side along the transverse direction; there are also more than two workpiece resting blocks (4), arranged side by side along the transverse direction.

The punching device also includes an upper side sheet punching mechanism, the upper side sheet punching mechanism includes a fourth oil cylinder (28) fixedly installed on the shelf (3), and the fourth oil cylinder (28) Driven by the 3rd punching knife (29) of punching from top to bottom.

The punching device is symmetrically provided with two sets of moving parts used to remove the grooved strip workpiece (1) from the clamping position after the punching operation is completed; each set of moving parts includes a horizontal vertical arrangement fixedly installed on the bottom plate The second air cylinder (30) on (2), rest on the said base plate (2) and the slide block (31) that is fixedly connected with the piston rod of the second air cylinder (30), vertically fixedly installed on the slide block The third cylinder (32) on (31) is positioned at the bottom of the groove bar workpiece (1) and is fixedly connected with the bracket (33) of the piston rod of the third cylinder (32), and the end of the bracket (33) is set upward A protruding hook (34) forms a groove (35) for resting the grooved bar workpiece (1).

A kind of punching knife (9), is suitable for the end punching of groove bar, it is characterized in that, described punching knife (9) is the geometry body that section is square-shaped, and the square-shaped notch of punching knife (9) The shape and size of (G) are consistent with the portion to be retained after punching the end of the grooved bar workpiece (1).

The knife-edge end of the punching knife (9) is tapered, and the taper angle is 21 to 22 degrees.

The special multi-directional combined punching device and punching knife for the groove bar of the present invention can complete the end punching operation of each piece of the upper side piece, the bottom of the groove and the lower side piece at the end of the groove bar in one clamping; it is further The solution can complete the multi-directional combined synchronous punching of the end of the groove bar, the lower side piece and the upper side piece in one clamping; the punching precision is high, and the working efficiency is significantly improved; it is especially suitable for the multi-directional combined punching of the upper guide groove of the car door cut.

Description of drawings

Fig. 1 is the schematic view of the front of the grooved bar workpiece according to Embodiment 1 of the present invention;

Fig. 2 is the back schematic diagram of this groove bar workpiece;

Fig. 3 is a three-dimensional schematic diagram of a special punching device for grooved strips according to Embodiment 1 of the present invention;

Fig. 4 is a three-dimensional schematic diagram of the workpiece resting block, the inner stopper of the workpiece, and the workpiece clamping mechanism in Embodiment 1 of the present invention;

Fig. 5 is a three-dimensional schematic diagram of a workpiece resting block of the present invention;

Fig. 6 is a three-dimensional schematic diagram of the upper seat of the workpiece resting block;

Fig. 7 is a three-dimensional schematic view of the end punching mechanism of the present invention;

Fig. 8 is a three-dimensional schematic diagram of the separated state of the guide groove seat of the end punching mechanism of the present invention;

Figure 9 and Figure 10 are three-dimensional schematic diagrams of the first punching knife used for end punching according to the present invention;

Fig. 11 is a three-dimensional schematic diagram of a multi-punching device dedicated to grooved strips according to Embodiment 2 of the present invention;

Fig. 12 is a three-dimensional schematic diagram of the upper guide groove of the car door after punching according to Embodiment 3 of the present invention;

Fig. 13 is a three-dimensional schematic diagram of the state where the workpiece is not displayed by the multi-directional combined punching device dedicated to the upper guide groove of the car door according to Embodiment 2 of the present invention;

Fig. 14 is a three-dimensional schematic diagram showing the state of the workpiece by the multi-directional combination punching device dedicated to the upper guide groove of the third car door in the embodiment of the present invention;

Fig. 15 is a three-dimensional schematic diagram of the moving mechanism of the multi-directional combination punching device dedicated to the upper guide groove of the car door according to the second embodiment of the present invention.

detailed description

Figure 1 and Figure 2 show a groove bar workpiece 1 that needs to be punched at the end and the side piece, wherein the end is punched into ends of different lengths of the upper side piece 1B, the groove bottom 1C, and the lower side piece 1D The part is cut off, and the side piece is punched into the punching gap 1E; before punching, the end part is shown as the left end of Figure 2, and the left part of the dotted line is the part to be cut off. After punching, as shown in Figure 1, the end part to be cut off includes the The end of the upper side piece 1B, the end of the groove bottom 1C, and the end of the lower side piece 1D of the groove 1A, the excised piece at the end of the groove bottom 1C is a square piece as shown in the figure, and the cutaway piece at the end of the upper side piece 1B is the same as The long slice of the angle ruler is equal to the long slice, and the 1D end resection slice of the lower side slice is equal to the short slice of the angle ruler.

Embodiment one

The special punching device for the grooved strip in the first embodiment is shown in FIG. 3 , and is used for punching the end of the grooved strip workpiece 1 as shown in FIG. 1 and FIG. 2 . When punching, the grooved strip workpiece 1 is placed in a lateral vertical manner and then punched to its end; the punching device includes a base plate 2, and the shape of the contact surface that contacts the workpiece 1 is arranged on the base plate 2 to match the corresponding surface of the workpiece 1. Workpiece shelving block 4, workpiece inner stopper 5, and workpiece clamping mechanism for clamping the grooved bar workpiece 1 standing sideways. The workpiece clamping mechanism includes workpiece outer clamping block 6 and workpiece upper pressure block 7 driven by a power device The punching device also includes an end punching mechanism; the end punching mechanism includes a first oil cylinder 8 fixedly installed on the rear side of the bottom plate 2 in a horizontal vertical manner, driven by the first oil cylinder 8, punching from the back to the front The first punching knife 9; the shape and size of the end portion of the workpiece outer clamping block 6 and the workpiece top pressure block 7 are consistent with the workpiece 1 end punching; the first punching knife 9 is a cross-sectional shape For the square-shaped geometry, the shape and size of the square-shaped notch G of the first punching knife 9 are also consistent with the part that needs to be retained after punching the end of the workpiece 1 . The edge end of the first punching knife 9 is tapered, and the taper angle R is 21° to 22°. The taper angle R is the included angle between the inclined cone surfaces s1, s2, s3 of the knife edge and their respective knife planes S1, S2, S3. Its essence is that the outer clamping block 6 of the workpiece and the end portion of the pressing block 7 above the workpiece and the first punching knife 9 jointly form a pair of punching dies, and the outer clamping block 6 of the workpiece and the pressing block 7 above the workpiece are located at the end. Part is a fixed die, and the first punching knife 9 is a movable die.

As shown in Figure 4, the workpiece clamping mechanism includes a guide rail 13 and a second oil cylinder 14 fixedly installed on the bottom plate 2 in a horizontal vertical manner, and a slide plate 15 driven by the second oil cylinder 14 to slide along the guide rail 13, and the outer clamping block 6 of the workpiece It is fixedly connected with the slide plate 15; the first cylinder 16 is also fixedly installed on the slide plate 15, the piston rod of the first cylinder 16 is fixedly connected with the connecting rod 17, and the lower slope 18 is set under the inner end of the connecting rod 17, and the pressing block above the workpiece A corresponding upper slope 19 is set above the front end of 7, and a column 20 for sliding up and down of the pressing block 7 above the workpiece is set on the slide plate 15. A connecting block 21 is fixedly arranged on the slide plate 15, and the outer clamping block 6 of the workpiece is fixedly connected with the connecting block 21, and is located below the pressing block 7 above the workpiece; more than one circular pit 37 is arranged on the connecting block 21, and the circular pit 37 is equipped with Upper compression spring; Column 20 is also fixed on the connection block 21 above.

As shown in Fig. 7 and Fig. 8, the piston rod of the first oil cylinder 8 is fixedly connected with the first punching knife 9 through its connecting rod, and a guide groove seat 22 is set on the bottom plate 2 where the first punching knife 9 is located. A guide groove 23 for sliding the first punching knife 9 is arranged in the guide groove seat 22 .

As shown in FIGS. 5 and 6 , the workpiece resting block 4 includes a base 24 fixed on the bottom plate 2 and an upper seat 25 fixed on the base 24 . The upper base 25 also defines an insert gap 26, and the contact part between the workpiece rest block 4 and the workpiece 1 is an insert 27 embedded in the insert gap 26, as shown in FIG. 6 . In addition, a side stopper 36 can be provided on the left side of the position where the workpiece 1 is to be placed in the punching device.

The punching operation process is:

1. Positioning: take the front as shown in Fig. 3 as the operating position, place the groove bar workpiece 1 on the workpiece resting block 4 in a lateral vertical manner as shown in Fig. Block 5 offsets, groove bar workpiece 1 left end and block 36 offset, and groove bar workpiece 1 lower side piece contact surface coincides with insert 27 upper surfaces.

2. Clamping: Start the second oil cylinder 14, drive the sliding plate 15 to slide inward along the guide rail 13, the outer clamping block 6 and the connecting block 21 slide inward, and the outer clamping block 6 of the workpiece touches the groove bar workpiece 1 and continues Start the second oil cylinder 14 to give force, and form an internal and external clamping force together with the inner stopper 5 of the workpiece; Slide to the top of the groove bar workpiece 1 end; at the same time, start the first cylinder 16 on the slide plate 15, drive the connecting rod 17 to slide inward, and act on the upper slope 19 of the pressure block 7 above the workpiece through its lower slope 18, Make the pressing block 7 above the workpiece go down along the column 20 and press the grooved bar workpiece 1 .

3. End punching: start the first oil cylinder 8, drive the first punching knife 9 to slide along the guide groove 23 of the guide groove seat 22, and the first punching knife 9 completes the end cutting of the groove bar workpiece 1 at one time .

4. Loosening and picking up parts: start the second oil cylinder 14, the first cylinder 16 and the first oil cylinder 8 in reverse, and their respective piston rods retreat and reset, and the clamping block 6 and the connecting block 21 outside the workpiece are reset accordingly, and the pressing block above the workpiece 7 Rebound and reset under the action of the compressed spring in the circular pit 37, and slide outward with the connecting block 21 and the slide plate 15 to leave the top of the end of the groove bar workpiece 1; remove the groove bar that has completed the punching of the end Artifact 1.

The end punching mechanism of the punching device in this embodiment can also be arranged as a pair, which are distributed symmetrically at the two ends of the workpiece to be installed according to the length of the grooved workpiece 1 .

Embodiment two

The special punching device for grooved strips in the second embodiment is a multi-directional combined punching device, as shown in Figure 11, which is used for punching and lowering the end of the grooved strip workpiece 1 as shown in Figures 1 and 2. On-machine die-cutting of side panels. When punching, the workpiece 1 of the grooved strip is placed in a lateral vertical manner; the punching device includes a base plate 2 and a shelf 3 fixedly placed above the base plate 2, and the shape of the contact surface and the groove in contact with the workpiece 1 are arranged on the base plate 2 The corresponding surface of the strip workpiece 1 matches, and is used to clamp the workpiece resting block 4, the workpiece inner stopper 5, and the workpiece clamping mechanism of the grooved strip workpiece 1 erected sideways. Block 6 and pressing block 7 above the workpiece; the punching device also includes an end punching mechanism and a lower side piece punching mechanism. The end punching mechanism includes a first oil cylinder 8 fixedly installed on the rear side of the bottom plate 2 in a horizontal and longitudinal manner, and a first punching knife 9 driven by the first oil cylinder 8 for punching from back to front. The lower side sheet punching mechanism includes the third oil cylinder 10 fixedly installed on the shelf 3 in an upright manner, the second punching knife 11 punched from top to bottom driven by the third oil cylinder 10; the workpiece outer clamping block 6 and The shape and size of the pressure block 7 above the workpiece are consistent with the part that needs to be retained after punching the end of the groove bar workpiece 1; the first punching knife 9 is a square-shaped geometric body in section, and the first punching knife The shape and size of the square-shaped notch G of 9 are also consistent with the part that needs to be retained after punching the end of the grooved bar workpiece 1 . The edge end of the first punching knife 9 is tapered, and the taper angle R is 21° to 22°. The taper angle R is the included angle between the inclined cone surfaces s1, s2, s3 of the knife edge and their respective knife planes S1, S2, S3. The shape and size of the second punching knife 11 are consistent with the punching target gap of the workpiece side piece. Before punching, the edge of the second punching knife 11 is located in the groove 1A of the groove bar workpiece 1. The knife-accommodating notch 12 for accommodating the second punching knife 11 for punching down. Corresponding to the two punching notches 1E of the grooved bar workpiece as shown in FIG. 1 , two lower side sheet punching mechanisms are arranged side by side.

As shown in Figure 4, the workpiece clamping mechanism includes a guide rail 13 and a second oil cylinder 14 fixedly installed on the bottom plate 2 in a horizontal vertical manner, and a slide plate 15 driven by the second oil cylinder 14 to slide along the guide rail 13, and the outer clamping block 6 of the workpiece It is fixedly connected with the slide plate 15; the first cylinder 16 is also fixedly installed on the slide plate 15, the piston rod of the first cylinder 16 is fixedly connected with the connecting rod 17, and the lower slope 18 is set under the inner end of the connecting rod 17, and the pressing block above the workpiece A corresponding upper slope 19 is set above the front end of 7, and a column 20 for sliding up and down of the pressing block 7 above the workpiece is set on the slide plate 15. A connecting block 21 is fixedly arranged on the slide plate 15, and the outer clamping block 6 of the workpiece is fixedly connected with the connecting block 21, and is located below the pressing block 7 above the workpiece; more than one circular pit 37 is arranged on the connecting block 21, and the circular pit 37 is equipped with Upper compression spring; Column 20 is also fixed on the connection block 21 above. As shown in Fig. 7 and Fig. 8, the piston rod of the first oil cylinder 8 is fixedly connected with the first punching knife 9 through its connecting rod, and a guide groove seat 22 is set on the bottom plate 2 where the first punching knife 9 is located. A guide groove 23 for sliding the first punching knife 9 is arranged in the guide groove seat 22 . As shown in Fig. 5 and Fig. 6, the workpiece rest block 4 includes a base 24 fixed on the base plate 2 and an upper seat 25 fixed on the base 24, and the same position of the base 24 and the upper seat 25 is provided for accommodating the punching down line. The knife gap 12 of the second punching knife 11. The upper base 25 also defines an insert gap 26, and the contact part between the workpiece rest block 4 and the workpiece 1 is an insert 27 embedded in the insert gap 26, as shown in FIG. 6 . In addition, a side stopper 36 can be provided on the left side of the position where the workpiece 1 is to be placed in the punching device.

The punching operation process is basically the same as that of Embodiment 1, except that the punching of the lower side piece is added during punching in step 3; at the same time or before and after starting the first oil cylinder 8, the third oil cylinder 10 is started to drive the second punching knife 11 Punching from top to bottom completes the punching of the 2 punching notches 1E of the lower side piece 1D of the grooved bar workpiece 1 . Others refer to Example 1.

The end punching mechanism of the punching device in this embodiment can also be arranged as a pair, which are distributed symmetrically at the two ends of the workpiece to be installed according to the length of the grooved workpiece 1 .

Embodiment three

As shown in Figure 12, it is an upper guide groove of a car door, which is also a groove strip with a concave shape in cross section. The upper guide groove of the car door is generally formed by continuous rolling process of metal strip material, and formed by upper side piece 1B, groove bottom 1C, the groove 1A surrounded by the lower side piece 1D, and cut online; often for its installation needs, the upper guide groove of the car door after cutting needs to be punched to its end and side piece; wherein the end is punched as the upper The ends of side panel 1B, groove bottom 1C, and lower side panel 1D are cut off with different lengths, and the side panels are punched into notches or punched holes; before punching, the ends are shown as the left end in Figure 2, and the dotted line refers to the left part to be cut off After punching, as shown in Figure 12, the part to be cut off includes the end of the upper side piece 1B, the end of the groove bottom 1C, and the end of the lower side piece 1D located in the groove 1A, and the cut piece at the end of the groove bottom 1C is As shown in the figure, the end resection of the upper side piece 1B is as long as the long piece of the angle ruler, and the end resection of the lower side piece 1D is as long as the short piece of the angle ruler. The side panel die-cutting includes 6 notches 1E on the lower side panel 1D and 2 round holes 1F on the upper side panel 1B.

The special punching device for the groove bar of the third embodiment is a multi-directional combined special punching device for the upper guide groove of the car door as shown in Figure 12, and the two ends of the upper guide groove of the above-mentioned car door are completed on the punching device , 6 notches 1E of the lower side panel 1B and 2 circular holes 1F of the upper side panel are punched on the same machine. Hereinafter, the upper guide groove of the vehicle door is also referred to as the groove strip workpiece 1 .

The grooved bar special punching device of present embodiment three is as shown in Figure 13, Figure 14, and wherein, Fig. 13 does not place grooved bar workpiece 1, and Figure 14 has placed grooved bar workpiece 1, and grooved bar workpiece 1 is placed during punching. The workpiece 1 is placed in a sideways upright manner. Compared with the embodiment, according to the needs of the upper guide groove of the car door as shown in Figure 12, the end punching mechanism of the punching device of the present embodiment is arranged as a pair of symmetry, and is symmetrically distributed among the workpieces to be installed according to the length of the groove bar workpiece 1 At both ends of the lower side piece, the punching mechanism is set to be 6 in parallel; the workpiece rest block 4 and the inner stopper 5 of the workpiece are all set to be multiple according to the length of the workpiece, and the workpiece clamping mechanism is set to be symmetrical. the front of the punching mechanism. The special punching device for the groove bar of the third embodiment also includes an upper side sheet punching mechanism, which includes a fourth oil cylinder 28 fixedly installed on the shelf 3, driven by the fourth oil cylinder 28 The third punching knife 29 punched from top to bottom; the corresponding positions of the base 24 and the upper seat 25 also provide a knife-accommodating gap for accommodating the third punching knife 29 that punches downward.

In addition, due to the effect of clamping force and punching force, after the punching operation is completed, the grooved workpiece 1 will be adsorbed on the workpiece resting block 4, and it is often difficult to manually pick up the piece, and the efficiency is very low; for the convenience of picking up the piece, Improve operational efficiency; as shown in Figure 13 and Figure 14, the special punching device for the groove bar of the present embodiment three is also symmetrically arranged with two sets beside the workpiece clamping mechanism for punching the groove bar workpiece 1 from the device after the punching operation is completed. The moving mechanism that removes the clip position. The moving mechanism is specifically shown in FIG. 15 , including a second cylinder 30 fixedly installed on the bottom plate 2 in a horizontal vertical manner, a slider 31 resting on the bottom plate 2 and fixedly connected with the piston rod of the second cylinder 30, vertically Put the third cylinder 32 that is fixedly installed on the slide block 31, the bracket 33 that is positioned at the bottom of the groove bar workpiece 1 and is fixedly connected with the piston rod of the third cylinder 32, and the end of the bracket 33 is provided with an upwardly protruding hook 34, forming Groove 35 for resting groove bar workpiece 1 .

The punching operation process is basically the same as embodiment two, specifically:

1. Positioning: take the front as shown in Figure 13 as the operating position, place the grooved bar workpiece 1 on the top of each workpiece resting block 4 in a lateral vertical manner as shown in Figure 14, so that the groove bottom surface 1C of the groove 1A is aligned with each workpiece Inboard stopper 5 offsets, groove bar workpiece 1 left end and stopper 36 offset, and groove bar workpiece 1 lower side plate contact surface coincides with each insert 27 upper surfaces.

2. Clamping: Simultaneously start the second oil cylinder 14 of the two workpiece clamping mechanisms, drive its slide plate 15 to slide inward along the guide rail 13, the outer clamping block 6 of the workpiece and the connecting block 21 slide inward accordingly, and the outer clamping block 6 of the workpiece After touching the workpiece 1 of the groove bar, continue to start the second oil cylinder 14 to give force, and form an internal and external clamping force together with the inner stopper 5 of the workpiece; The first cylinder 16 also slides inwardly with the slide plate 15; at the same time, start the first cylinder 16 on the slide plate 15, drive the connecting rod 17 to slide inwardly, and act on the upper slope 19 of the pressing block 7 above the workpiece through its lower slope 18, Make the pressing block 7 above the workpiece go down along the column 20 and press the grooved bar workpiece 1 .

3. End punching: Start the first oil cylinder 8 of the two end punching mechanisms at the same time, drive the first punching knife 9 to slide along the guide groove 23 of the guide groove seat 22, and the first punching knife 9 at both ends once Completely complete the excision of both ends of the grooved bar workpiece 1. At the same time or before and after starting the first oil cylinder 8, start the third oil cylinder 10 and the fourth oil cylinder 28, drive the second punching knife 11 and the third punching knife 29 to punch from top to bottom, and complete the groove bar workpiece 1 Die-cutting of the 6 notches 1E of the lower side panel 1D and the 2 circular holes 1F of the upper side panel 1B.

4. Loosening and picking up parts: Reverse start the second oil cylinder 14 of the two workpiece clamping mechanisms, the first cylinder 16 and the first oil cylinder 8 of the two end punching mechanisms, and their respective piston rods retreat and reset, and the outside of the workpiece The clamping block 6 and the connecting block 21 are reset accordingly, and the pressure block 7 above the workpiece rebounds and resets under the action of the compressed spring in the circular pit 37, and slides outward with the connecting block 21 and the sliding plate 15 to leave the groove bar workpiece 1 Above the end; At this moment, start the third cylinder 32 of the moving part mechanism, and the supporting block 33 goes up and lifts the groove bar workpiece 1 above its groove 35; starts its second cylinder 30 simultaneously, and the groove bar workpiece 1 follows The supporting block 33, the third cylinder 32, and the slider 31 slide outwards, thereby moving the groove bar workpiece 1 to a position where it is easy to manually pick up the piece; at this time, the operator can easily remove the groove that has completed all the punching The workpiece 1 is the guide groove on the car door mentioned at the beginning of the third embodiment.

In addition, the orientations referred to as left, right, front, and rear in this application document are only for the convenience of expression relative to the representation of the drawings of this patent application, and do not constitute a limitation to the present invention.

Claims (13)

1. groove bar punching device on a kind of car door, comprise base plate (2), it is characterized in that, described base plate (2) is provided with the workpiece shelving block ( 4) With the workpiece clamping mechanism; the shape of the contact surface of the workpiece resting block (4) for contacting with the grooved bar workpiece (1) is matched with the corresponding surface of the grooved bar workpiece (1), and the workpiece resting block (4) is set above It is used to withstand the workpiece inner stopper (5) of the grooved strip workpiece (1) in the groove (1A) of the grooved strip workpiece (1), and the workpiece clamping mechanism includes a workpiece outer clamping block (6) driven by a power device ) and the pressing block (7) above the workpiece; the punching device also includes an end punching mechanism, and the end punching mechanism includes a first oil cylinder fixedly installed on the rear side of the bottom plate (2) horizontally and vertically (8), driven by the first oil cylinder (8), the first punching knife (9) punched from the back to the front; the outer clamping block (6) of the workpiece and the pressing block (7) above the workpiece are located at the end The shape and size of the part are consistent with the part that needs to be retained after punching the end of the grooved bar workpiece (1); the first punching knife (9) is a square-shaped geometric body in cross section, and the first punching knife (9) ) The shape and size of the square notch (G) are also consistent with the part that needs to be retained after punching the end of the grooved bar workpiece (1). 2. The punching device according to claim 1, characterized in that, the workpiece clamping mechanism includes a guide rail (13) and a second oil cylinder (14) fixedly installed on the bottom plate (2) horizontally and vertically , and the slide plate (15) that slides along the guide rail (13) is driven by the second oil cylinder (14), and the clamping block (6) on the outside of the workpiece is fixedly connected with the slide plate (15); the slide plate (15) is also fixedly installed with The first cylinder (16), the piston rod of the first cylinder (16) is fixedly connected with the connecting rod (17), the inner end of the connecting rod (17) is provided with a lower slope (18), and the workpiece top pressure block ( 7) A corresponding upper slope (19) is set above the front end, and a column (20) for sliding up and down of the pressing block (7) above the workpiece is set on the slide plate (15). 3. The punching device according to claim 2, characterized in that, a connecting block (21) is fixedly arranged above the slide plate (15), and the outer clamping block (6) of the workpiece is fixedly connected with the connecting block (21), And be positioned at the workpiece top briquetting block (7) below; This connecting block (21) is provided with more than one circular pit (37), and the circular pit (37) is loaded with compression spring; Described column (20) also fixes on the connection block (21). 4. The punching device according to claim 1, characterized in that, the piston rod of the first oil cylinder (8) is fixedly connected with the first punching knife (9) through its connecting rod, and the first punching knife (9) A guide groove seat (22) is set on the base plate (2) at the position, and a guide groove (23) for the sliding of the first punching knife (9) is set in the guide groove seat (22). 5. The punching device according to claim 1, characterized in that, the workpiece resting block (4) comprises a base (24) fixed on the base plate (2) and an upper seat (24) fixed on the base (24) 25). 6. The punching device according to claim 5, characterized in that, the upper seat (25) also has an insert gap (26), and the workpiece rest block (4) is in contact with the groove bar workpiece (1) The part is an inlaid block (27) embedded in the notch (26) of the inlaid block. 7. The punching device according to claim 1, characterized in that, the edge end of the first punching knife (9) is tapered, and the taper angle is 21° to 22°. 8. The punching device according to claim 1, characterized in that, a side stopper (36) is provided on the side of the grooved strip workpiece (1) of the punching device where it is to be placed. 9. The punching device according to claim 1, characterized in that, the end punching mechanisms are a pair, symmetrically distributed at both ends of the workpiece to be installed according to the length of the grooved strip workpiece (1). 10. The punching device according to any one of claims 1 to 9, characterized in that a shelf (3) is set above the bottom plate (2), and the punching device also includes a lower side sheet punching mechanism The lower side panel punching mechanism includes a third oil cylinder (10) fixedly installed on the shelf (3) in an upright manner, driven by the third oil cylinder (10), the second punching from top to bottom Punching knife (11); the shape and size of the second punching knife (11) are consistent with the punching target gap of the workpiece side piece, and the edge of the second punching knife (11) is located in the groove bar workpiece before punching (1) In the groove (1A), the workpiece resting block (4) is provided with a knife-accommodating notch (12) for accommodating the second punching knife (11) for punching down. 11. The punching device according to claim 10, characterized in that, there are more than two lower side sheet punching mechanisms arranged side by side along the transverse direction; there are also more than two workpiece resting blocks (4), arranged along the distributed side by side. 12. The punching device according to claim 10, characterized in that, the punching device also includes an upper side piece punching mechanism, and the upper side piece punching mechanism includes a The fourth oil cylinder (28) on the top, the third punching knife (29) punched from top to bottom driven by the fourth oil cylinder (28). 13. The punching device according to claim 10, characterized in that, the punching device is symmetrically provided with two sets of moving mechanisms for removing the grooved strip workpiece (1) from the clamping position after the punching operation is completed ; Each set of moving parts mechanism includes a second cylinder (30) fixedly installed on the base plate (2) in a horizontal vertical manner, resting on the base plate (2) and fixing with the piston rod of the second cylinder (30) The connected slide block (31), vertically placed and fixedly installed on the third cylinder (32) on the slide block (31), is located under the grooved bar workpiece (1) and is fixedly connected with the piston rod of the third cylinder (32) A bracket (33), the end of the bracket (33) is provided with an upwardly protruding hook (34), forming a groove (35) for placing the grooved bar workpiece (1).