CN110814163A - An automatic processing device for threaded connection plates - Google Patents

Abstract

The invention relates to an automatic processing device for screw-connected plate parts, comprising a lower platform, a plate conveying assembly and an upper platform, wherein the lower platform is sequentially arranged with a punching bottom die, a plurality of convex hull bottom dies and an extruding tooth bottom die ; The plate conveying assembly is arranged on both sides of the lower platform, the plate conveying assembly is clamped on both sides of the plate to be processed, and drives the plate to be processed horizontally; The hole bottom die, the convex hull bottom die, the punching head corresponding to the position of the extruding tooth bottom die, a plurality of convex hull punches, and the extruding tooth punch. Compared with the prior art, the present invention can realize the processing process of the threaded connection plate of the thicker plate of 4 mm or more. First, the to-be-processed plate is punched, then the convex hull is punched for multiple times, and finally the teeth are squeezed to obtain the inner part. The thread can directly form an internal thread in the prepared convex hull, so that the processing efficiency is high, and the process of convex welding of the nut is saved at the same time, so that the production efficiency of the integral threaded connection plate is significantly improved.

Description

An automatic processing device for threaded connection plates

technical field

The invention relates to an automatic processing device for plate parts, in particular to an automatic processing device for threaded connection plate parts.

Background technique

At present, in the process of fastening and connecting parts and parts, it is necessary to build a threaded connection plate structure, which includes a plate and a nut, wherein the nut is a projection welding nut, and the connection between the two is completed through a projection welding process. The threaded connection plate can be tightly connected with other components through a nut, so as to realize the integral assembly of the product. Projection welding is a resistance welding method that pre-processes one or more bumps on the bonding surface of a workpiece, makes it contact with the surface of another workpiece and is heated by electricity, and then collapses to form a solder joint at these contact points. Projection welding is a variant of spot welding. Projection welding is mainly used for welding stamping parts of low carbon steel and low alloy steel. The most suitable thickness of plate projection welding is 0.5-4mm, and spot welding should be used when it is less than 0.25mm.

The threaded connection plate needs to be punched first in the specific production, and then the nut is welded at the punched hole, and the projection welding process has obvious restrictions on the thickness of the plate. The process is complicated, and additional matching nuts need to be purchased, resulting in low overall production efficiency, and the cost cannot be further reduced.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automatic processing device for high-efficiency and high-precision threaded connection of plate parts that can simultaneously realize punching, punching, and thread extrusion in order to overcome the above-mentioned defects in the prior art.

The object of the present invention can be realized through the following technical solutions:

In the present invention, the automatic processing device for threadedly connecting panels includes a lower platform, a plate conveying assembly and an upper platform, wherein specifically:

The lower platform, on which the bottom die for punching, the bottom die for a plurality of convex hulls and the bottom die for extruding teeth are arranged in sequence;

The plate conveying assembly is arranged on both sides of the lower platform, the plate conveying assembly is clamped on both sides of the plate to be processed, and drives the plate to be processed horizontally;

The upper platform is arranged above the lower platform, and is sequentially provided with punching heads, a plurality of convex hull punches and extrusion punches corresponding to the positions of the punching bottom die, the convex hull bottom die and the tooth extrusion bottom die.

Further, the plate conveying assembly includes a slider, a clamp and a screw;

The fixture is clamped on both sides of the plate to be processed;

The slider is fixedly connected with the fixture;

The screw rods are arranged on both sides of the lower platform, and the sliding block is sleeved on the screw rods, so that the plate to be processed can move horizontally under the rotation of the screw rods.

Further, the inside of the slider is provided with an inner thread matching the outer thread of the lead screw.

Further, the plate conveying assembly further includes a motor, and the end of the lead screw is connected to the output end of the motor.

Further, the convex hull bottom die is a lower concave die hole, and the depth of the convex hull bottom die hole increases sequentially from the direction close to the punching bottom die to the extrusion bottom die.

Further, the inner bottom surface of the convex hull bottom mold is a concave arc-shaped surface, and the end of the convex hull punch is a concave arc-shaped surface matching with the convex hull bottom mold.

Further, the punching bottom die, the multiple convex hull bottom die and the tooth extrusion bottom die are distributed on the same straight line;

The punching head, the plurality of convex hull punches and the extrusion punches are distributed on the same straight line.

Further, the punching head, the plurality of convex hull punches, and the tooth-extruding punches are respectively controlled by an independent downward pressing cylinder to realize independent downward pressing and upward lifting actions.

Further, the fixture includes:

The first clamp rod is fixedly connected with the slider;

two second clamping rods, one end of which is axially connected with the end of the first clamping rod;

Four chucks, the cross-section of which is U-shaped, are covered and supported on the four corners of the plate to be processed, and the chucks are fixedly connected with the other end of the second clamping rod;

The adjusting screw rod penetrates between the two second clamping rods, and the adjusting screw rod is parallel to the first clamping rod.

Further, both ends of the adjusting screw rod are provided with adjusting handles, and the included angle between the handle and the first clamping rod can be adjusted by rotating the adjusting handles.

Further, the punching head is a conventional steel plate punching bit, which realizes the punching of the plate to be processed.

Further, the extrusion punch has a screw-tapping structure, which realizes the internal thread processing process of the convex hull of the plate to be processed.

Compared with the prior art, the present invention has the following advantages:

1) This technical solution can realize the processing process of threaded connection plates of thicker plates of more than 4mm. First, the plate to be processed is punched, then the convex hull is punched several times, and finally the teeth are squeezed to obtain the internal thread, which can be directly Internal threads are formed in the prepared convex hull, and the overall processing structure is on the same straight line, so that the processing efficiency is high, and the projection welding process of the nut is saved at the same time, so that the production efficiency of the integral threaded connection plate is significantly improved.

2) In this technical solution, the gradual formation of the convex hull at the opening of the plate to be processed is realized through a plurality of convex hull bottom dies and a plurality of convex hull punches whose depths increase sequentially, rather than a one-step method to obtain the convex hull, and the depth is progressive. The preparation method is conducive to the uniformity of the structure avoided by the convex hull, the avoidance of the structure breakage, and the avoidance of the structure breakage which should be caused by stress concentration during the use process.

3) The clamp in this technical solution can realize the adjustment of the angle between the handle and the first clamping rod by rotating the adjustment handle, and has a high clamping function, which avoids the impact of out-of-position during punching, punching, and squeezing the teeth. The processing quality of the plate to be processed is improved.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the automatic processing device of the threaded connection plate in the present invention;

Fig. 2 is the setting structure diagram of lower platform and upper platform in the present invention;

Fig. 3 is the structural representation of the clamp in the present invention;

FIG. 4 is a schematic diagram of the support structure of the fixture in the present invention.

In the figure: 1. Lower platform, 2. Plate conveying assembly, 3. Upper platform, 11. Punching bottom die, 12. Convex bottom die, 13. Convex bottom die, 21, Slider, 22, Fixture, 23, lead screw, 24, motor, 221, first clamping rod, 222, adjusting screw, 223, second clamping rod, 224, collet, 225, adjusting handle.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example

In the present invention, the automatic processing device for threadedly connecting panels includes a lower platform 1 , a plate conveying assembly 2 and an upper platform 3 , see FIG. 1 .

Part 1 of the lower platform: a bottom die 11 for punching, a plurality of bottom dies 12 for convex hulls and a bottom die 13 for extruding teeth are arranged in sequence on it. The punching bottom die 11, the plurality of convex hull bottom die 12 and the tooth extrusion bottom die 13 are distributed on the same straight line. The convex bottom die 12 is a concave die hole, and the depth of the die hole of the convex bottom die 12 increases sequentially from the direction close to the punch bottom die 11 to the extrusion bottom die 13 . The inner bottom surface of the convex hull bottom mold 12 is a concave arc-shaped surface, and the end of the convex hull punch 32 is a concave arc-shaped surface matching with the convex hull bottom mold 12 .

Part 3 of the upper platform: located above the lower platform 1, on which are sequentially provided punching heads 31 and a plurality of convex hull punches corresponding to the positions of the punching bottom die 11, the convex hull bottom die 12, and the extrusion bottom die 13 respectively 32. Squeeze the tooth punch 33. The punching head 31 , the plurality of convex hull punches 32 and the extrusion punches 33 are distributed on the same straight line. Further, the punching head 31 , the plurality of convex hull punches 32 , and the tooth-extrusion punches 33 are respectively controlled by independent pressing cylinders, so as to realize independent pressing and lifting actions. The punching head 31 is a conventional steel plate punching bit, which realizes the punching of the plate 4 to be processed. The extrusion punch 33 is a screw tapping structure, which realizes the internal thread processing process of the convex hull of the plate 4 to be processed.

Plate conveying assembly 2: located on both sides of the lower platform 1, the plate conveying assembly 2 is clamped on both sides of the plate 4 to be processed, and drives the plate 4 to be processed horizontally; the plate conveying assembly 2 includes a slider 21, a fixture 22 and screw rod 23; the clamp 22 is clamped on both sides of the plate 4 to be processed; the slider 21 is fixedly connected with the clamp 22; the screw rod 23 is arranged on both sides of the lower platform 1, so The sliding block 21 is sleeved on the screw rod 23 , so that the plate 4 to be processed can move horizontally under the rotation of the screw rod 23 . Inside the slider 21 is an internal thread that matches the external thread of the lead screw 23 . The board conveying assembly 2 further includes a motor 24 , and the end of the lead screw 23 is connected to the output end of the motor 24 . The clamp 22 includes a first clamping rod 221, two second clamping rods 223, four clamping heads 224 and an adjusting screw 222, wherein the first clamping rod 221 is fixedly connected with the slider 21; The ends of the first clamping rod 221 are axially connected; the four clamping heads 224 are all U-shaped in cross section, and are cladly supported on the four corners of the plate 4 to be processed, and the clamping heads 224 are fixed with the other end of the second clamping rod 223 Connection; the adjusting screw 222 runs through between the two second clamping rods 223 , and the adjusting screw 222 is parallel to the first clamping rod 221 . Both ends of the adjusting screw 222 are provided with adjusting handles 225 , and the included angle between the handle 225 and the first clamping rod 221 can be adjusted by rotating the adjusting handle 225 .

During the specific operation, the four chucks 224 are wrapped around the four corners of the panel 4 to be processed, and the angle between the handle 225 and the first clamping rod 221 can be adjusted by rotating the adjustment handle 225, so that the The machined plate 4 is fully clamped. Then, the two screw rods 23 are driven to rotate synchronously by the motor 24, so that the plate 4 to be processed can move horizontally under the rotation of the screw rod 23. The heads 33 are respectively controlled by independent pressing cylinders to achieve independent pressing and lifting actions, so that the plate 4 to be processed is sequentially punched, convex and threaded, so that the convex hull forms an internal thread, and a thread is obtained. Finished connecting plate.

Claims (10)

1. An automatic processing device for a threaded connection plate, characterized in that, comprising: a lower platform (1), on which a punching bottom die (11), a plurality of convex hull bottom dies (12) and a tooth extrusion bottom die (13) are arranged in sequence; The plate conveying assembly (2) is arranged on both sides of the lower platform (1), and the plate conveying assembly (2) is clamped on both sides of the plate to be processed (4), and drives the plate (4) to be processed horizontally; The upper platform (3) is arranged above the lower platform (1), and punching holes corresponding to the positions of the punching bottom die (11), the convex hull bottom die (12) and the tooth extrusion bottom die (13) are sequentially arranged thereon. A head (31), a plurality of convex hull punches (32), and a tooth extrusion punch (33). 2 . The automatic processing device for threaded connection plates according to claim 1 , wherein the plate conveying assembly ( 2 ) comprises a slider ( 21 ), a clamp ( 22 ) and a lead screw ( 23 ). 3 . ); The clamp (22) is clamped on both sides of the plate to be processed (4); The slider (21) is fixedly connected with the clamp (22); The screw rod (23) is arranged on both sides of the lower platform (1), and the slider (21) is threaded on the screw rod (23), so that the plate (4) to be processed can be placed on the screw rod (23). The rotation of the rod (23) is driven to move horizontally. 3 . The automatic processing device for threaded connection plates according to claim 2 , wherein the slider ( 21 ) is internally provided with an internal thread matching the external thread of the lead screw ( 23 ). 4 . 4 . The automatic processing device for threaded connection plates according to claim 2 , wherein the plate conveying assembly ( 2 ) further comprises a motor ( 24 ), and the lead screw ( 23 ) has a motor ( 4 ). The end is connected with the output end of the motor (24). 5. The automatic processing device for threaded connection plates according to claim 1, characterized in that, the convex hull bottom mold (12) is a concave mold hole, and the convex hull bottom mold (12) has a hole in the mold hole. The depth increases sequentially from approaching the punching bottom die (11) to the direction of the tooth extrusion bottom die (13). 6. The automatic processing device for threaded connection plates according to claim 5, characterized in that, the inner bottom surface of the convex hull bottom mold (12) is a concave arc surface, and the convex hull punches The end of the head (32) is a concave arc-shaped surface matched with the convex hull bottom mold (12). 7 . The automatic processing device for a threaded connection plate according to claim 1 , wherein the punching bottom die (11), a plurality of convex hull bottom dies (12) and the extruding tooth bottom die ( 7 . 13) The distribution is on the same straight line; The punching head (31), the plurality of convex hull punches (32) and the tooth extrusion punches (33) are distributed on the same straight line. 8. The automatic processing device for threaded connection plates according to claim 1, characterized in that the punching head (31), a plurality of convex hull punches (32), and the extrusion punch (33) ) are controlled by independent lowering cylinders to achieve independent lowering and lifting actions. 9. The automatic processing device for a threaded connection plate according to claim 1, wherein the clamp (22) comprises: The first clamping rod (221) is fixedly connected with the slider (21); two second clamping rods (223), one end of which is axially connected to the end of the first clamping rod (221); Four chucks (224), the cross-section of which is U-shaped, are covered and supported on the four corners of the plate (4) to be processed, and the chucks (224) are fixedly connected with the other end of the second clamping rod (223); The adjusting screw (222) runs through between the two second clamping rods (223), and the adjusting screw (222) is parallel to the first clamping rod (221). 10. The automatic processing device for threaded connection plates according to claim 9, characterized in that, both ends of the adjustment screw (222) are provided with adjustment handles (225), and the adjustment handles (225) can be rotated by rotating the adjustment handles (225). The adjustment of the included angle between the handle (225) and the first clamping rod (221) is realized.

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