CN108067906A - Machining flange hole positioning fixture in a kind of electric control valve - Google Patents

Abstract

The invention provides a flange hole processing and positioning fixture for an electric control valve, which includes a bottom plate of the center head, a left V-shaped block and a right V-shaped block, and the bottom plate of the center head includes a left positioning groove, a right positioning groove, and a left fixing groove and the right fixing groove, the bottom of the left V-shaped block is provided with a first key block, the bottom of the right V-shaped block is provided with a second key block, and the first key block is inserted into the left positioning groove, so The left V-shaped block and the left fixing groove are fixed by bolts, the second key block is inserted into the right positioning groove, and the right V-shaped block and the right fixing groove are fixed by bolts. The flange hole processing and positioning fixture for the electric control valve proposed by the present invention has long service life, better positioning stability, meets various processing requirements, and is easy to assemble and disassemble in the production process.

Description

A positioning fixture for processing flange holes in electric control valves

technical field

The invention belongs to the field of metal precision casting, and in particular relates to a machining and positioning fixture for a flange hole in an electric regulating valve.

Background technique

The machining of the flange hole in the current electric control valve requires a high-precision five-axis machining center, and its manufacturing cost is high. If other drilling machines are used, the structure of the flange hole machining positioning fixture is more complicated, and there are many fixed surfaces. Moreover, although there are many fixed surfaces, it is difficult to locate the processing part, and it is still easy to cause shaking, and because the contact surface with the workpiece is too large, it is easy to cause wear of the workpiece. , and workpieces of different sizes need to be replaced with other sizes of fixtures. Therefore, it is necessary to make a positioning fixture for flange hole processing in electric control valves to solve complex loading and unloading, difficult positioning of processing parts, difficult adjustment of processing surfaces, and poor universality of the fixture. The problem.

Contents of the invention

The technical problem to be solved by the present invention is to provide a flange hole processing and positioning fixture in an electric control valve, which overcomes the above-mentioned defects and solves the above-mentioned problems.

In order to solve the above-mentioned technical problems, the present invention provides a positioning fixture for processing the flange hole in the electric control valve, which includes a bottom plate of the center head, a left V-shaped block and a right V-shaped block. The bottom plate of the center head includes a left positioning groove, a right positioning groove, left fixing groove and right fixing groove, the bottom of the left V-shaped block is provided with a first key block, the bottom of the right V-shaped block is provided with a second key block, and the first key block is inserted into the In the left positioning groove, the left V-shaped block and the left fixing groove are fixed by bolts, the second key block is inserted into the right positioning groove, and the right V-shaped block and the right fixing groove are fixed by bolts .

As a preferred solution of the flange hole processing and positioning jig for an electric control valve according to the present invention, the center of the bottom plate of the car center head has a calibration hole, and the left positioning groove and the right positioning groove are respectively arranged in the calibration hole. The two sides of the hole, and communicate with the calibration hole, the groove width of the left positioning groove and the right positioning groove is smaller than the aperture of the calibration hole, the left positioning groove and the right positioning groove are on the same straight line, in the Both sides of the left positioning groove are respectively provided with a left fixing groove, and the two left fixing grooves are respectively provided with a first machining hole at one end close to the calibration hole, and a right fixing groove is respectively arranged on both sides of the right positioning groove. As for the fixing groove, the two right fixing grooves are provided with a second processing hole at one end close to the calibration hole.

As a preferred solution of the flange hole processing and positioning jig in the electric control valve of the present invention, the left fixing groove and the right fixing groove are both inverted T-shaped grooves.

As a preferred solution of the flange hole processing and positioning jig in an electric regulating valve according to the present invention, the left V-shaped block has a first surface and a second surface corresponding to the first surface, and the first surface One surface is an upper surface, the second surface is a lower surface, a first trapezoidal block and a second trapezoidal block are arranged on the first surface, the first trapezoidal block is symmetrical to the second trapezoidal block, and the A V-shaped gap for fixing the workpiece is formed between the first trapezoidal block and the second trapezoidal block, the center of the second surface is provided with a protruding first key block, and the left V-shaped block is also provided with A plurality of first fixing holes, the first fixing holes penetrate from the first surface to the second surface, and the left fixing groove is fixedly connected with the first fixing holes of the left V-shaped block through bolts.

As a preferred solution of the flange hole processing and positioning jig in the electric control valve of the present invention, the right V-shaped block has a third surface and a fourth surface corresponding to the third surface, and the first V-shaped block has a third surface and a fourth surface corresponding to the third surface. The three surfaces are the upper surface, the fourth surface is the lower surface, a third trapezoidal block and a fourth trapezoidal block are arranged on the third surface, the third trapezoidal block is symmetrical to the fourth trapezoidal block, and the third trapezoidal block is symmetrical to the fourth trapezoidal block. A V-shaped gap for fixing the workpiece is formed between the third trapezoidal block and the fourth trapezoidal block, the center of the fourth surface is provided with a protruding second key block, and the right V-shaped block is also provided with A plurality of second fixing holes, the second fixing holes penetrate from the third surface to the fourth surface, and the right fixing groove is fixedly connected with the second fixing holes of the right V-shaped block through bolts, so The side surfaces of the third trapezoidal block and the fourth trapezoidal block are respectively provided with a third fixing hole.

As a preferred solution of the flange hole processing and positioning fixture in the electric control valve of the present invention, the flange hole processing and positioning fixture in the electric control valve also includes a fixing plate, and the fixing plate and the right V-shaped The third fixing hole of the block is connected by bolts and nuts.

As a preferred solution of the flange hole processing and positioning jig in the electric control valve of the present invention, the included angle of the V-shaped gap is 80 degrees.

Compared with the prior art, the present invention proposes a flange hole processing and positioning jig for an electric control valve, which is characterized by:

1. Set the left V-shaped block and the right V-shaped block, which is convenient for fixing the processing part, has strong stability, and is easy to assemble and disassemble;

2. V-shaped gaps are set in the left V-shaped block and the right V-shaped block, which is convenient for placing workpieces of different sizes, has strong versatility, high utilization rate, and reduces tool costs.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort. in,

Fig. 1 is a schematic diagram of the main view of the bottom plate of the car center head of the flange hole processing positioning fixture in a kind of electric control valve of the present invention;

Fig. 2 is a left view structural diagram of the bottom plate of the car center head of the flange hole processing positioning fixture in a kind of electric regulating valve of the present invention;

Fig. 3 is a schematic diagram of the front view of the left V-shaped block of the flange hole processing and positioning fixture in an electric regulating valve of the present invention;

Fig. 4 is a schematic bottom view of the left V-shaped block of the flange hole processing and positioning fixture in an electric control valve of the present invention;

Fig. 5 is a front view structural schematic diagram of the right V-shaped block of the flange hole processing and positioning fixture in an electric regulating valve of the present invention;

Fig. 6 is a schematic bottom view of the right V-shaped block of the flange hole processing and positioning jig in an electric control valve according to the present invention.

Among them: 11 is the left positioning groove, 12 is the right positioning groove, 13 is the left fixing groove, 14 is the right fixing groove, 15 is the calibration hole, 16 is the first processing hole, 17 is the second processing hole, 21 is the first key Block, 22 is the first surface, 23 is the second surface, 24 is the first trapezoidal block, 25 is the second trapezoidal block, 26 is the first fixing hole, 31 is the second key block, 32 is the third surface, 33 is The fourth surface, 34 is the third trapezoidal block, 35 is the fourth trapezoidal block, 36 is the second fixing hole, 37 is the third fixing hole.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with specific embodiments.

First of all, "one embodiment" or "embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

Secondly, the present invention is described in detail by means of structural schematic diagrams, etc. When describing the embodiments of the present invention in detail, for the convenience of explanation, the schematic diagram showing a flange hole processing and positioning fixture in an electric control valve will not be partially enlarged according to the general scale, and the The above schematic diagram is just an example, which shall not limit the protection scope of the present invention. In addition, the three-dimensional space of length, width and depth should be included in actual production.

Embodiment one

Please refer to Figures 1, 3, and 5. Figure 1 is a schematic diagram of the main view of the bottom plate of the car center head of the flange hole processing and positioning fixture in an electric regulating valve of the present invention; Schematic diagram of the front view of the left V-shaped block of the flange hole processing and positioning jig; FIG. As shown in Figures 1, 3, and 5, the present invention provides a flange hole processing and positioning fixture for an electric control valve, including a center head bottom plate (not shown), a left V-shaped block (not shown) and a right V-shaped block. block (not shown), the bottom plate of the car head includes left positioning groove 11, right positioning groove 12, left fixing groove 13 and right fixing groove 14, the bottom of the left V-shaped block is provided with the first key block 21, and the right V-shaped block The bottom of the bottom is provided with a second key block 31, the first key block 21 is inserted into the left positioning groove 11, the first key block 21 can slide in the left positioning groove 11, and when sliding to a suitable position, the left V-shaped block is fixed to the left The groove 13 is fixed by bolts, the second key block 31 is inserted into the right positioning groove 12, the second key block 31 can slide in the right positioning groove 12, and when sliding to a proper position, the right V-shaped block and the right fixing groove 14 are passed through the bolt fixed. The setting of the left V-shaped block and the right V-shaped block is used to fix the electric control valve to be processed. In addition, the size of the electric control valve to be processed is adapted to the size of the electric control valve to be processed through the movement of the first key block 21 and the second key block 31. The left V-shaped block The fixing between the left fixing groove 13, the right V-shaped block and the right fixing groove 14 stabilizes the position of the electric control valve to be processed, and avoids the movement of the electric control valve to be processed in the lateral direction.

Please continue to refer to FIG. 1 and combine it with FIG. 2 . FIG. 2 is a left view structural diagram of the bottom plate of the center head of a flange hole processing and positioning fixture for an electric control valve according to the present invention. As shown in Figures 1 and 2, there is a calibration hole 15 in the center of the bottom plate of the car center head, so as to facilitate the positioning and calibration of the electric control valve to be processed during installation and processing. The left positioning groove 11 and the right positioning groove 12 are respectively arranged in the calibration hole 15 Both sides, and communicate with calibration hole 15, the groove width of left positioning groove 11 and right positioning groove 12 is less than the aperture of calibration hole 15, the connection line of left positioning groove 11 and right positioning groove 12 is on the same straight line, and midpoint is The calibration hole 15 is respectively provided with a left fixing groove 13 on both sides of the left positioning groove 11, and the two left fixing grooves 13 are parallel to the left positioning groove 11, and the left positioning groove 11 is arranged between the two left fixing grooves 13. Each left fixing groove 13 is all provided with a first processing hole 16 near the end of calibration hole 15, and this first processing hole 16 is for the processing and fixing of the head base plate in order to facilitate the car. Both sides of right positioning groove 12 are respectively provided with a right fixing groove 14, and two right fixing grooves 14 are parallel with right positioning groove 12, and right positioning groove 12 is arranged in the middle of three right fixing grooves 14, two right fixing grooves 14 is provided with a second processing hole 17 at one end close to the calibration hole 15, and this second processing hole 17 is to facilitate the processing and fixing of the bottom plate of the car center head, and to cooperate with the first processing hole 16. The left fixed groove 13 and the right fixed groove 14 are all inverted T-shaped grooves, which are convenient to the fixing of the left V-shaped block and the right V-shaped block and the middle head base plate of the fixed car.

Please continue to refer to FIG. 3 and combine it with FIG. 4 . FIG. 4 is a schematic bottom view of the left V-shaped block of the flange hole processing and positioning fixture in an electric control valve according to the present invention. As shown in Figures 3 and 4, the left V-shaped block has a first surface 22 and a second surface 23 corresponding to the first surface 22, the first surface 22 is an upper surface, the second surface 23 is a lower surface, and the first surface 22 is provided with a first trapezoidal block 24 and a second trapezoidal block 25, the first trapezoidal block 24 is symmetrical to the second trapezoidal block 25, and a V for fixing the workpiece is formed between the first trapezoidal block 24 and the second trapezoidal block 25 V-shaped gap, the included angle of the V-shaped gap is 80 degrees. The included angle between the two hypotenuses forming the V-shaped gap and the first surface 22 is 50 degrees. The advantage of this design is that no matter what shape or size the two ends of the electric control valve to be processed are, there are always at least two points on the two hypotenuses of the V-shaped gap that are in contact with one end of the electric control valve to be processed, which is convenient for more stable Fix the electric regulating valve to be processed. The center of the second surface 23 is provided with a protruding first key block 21, and the left V-shaped block is also provided with a plurality of first fixing holes 26, and the first fixing holes 26 penetrate from the first surface 22 to the second surface 23. The fixing groove 13 is fixedly connected with the first fixing hole 26 of the left V-shaped block by bolts. The left V-shaped block is an auxiliary block, which does not need to be fixed with the electric regulating valve to be processed, but only needs to be fixed with the bottom plate of the car center head.

Please continue to refer to FIG. 5 in conjunction with FIG. 6 . FIG. 6 is a bottom-view structure diagram of the right V-shaped block of the flange hole processing and positioning jig in an electric control valve according to the present invention. As shown in Figures 5 and 6, the right V-shaped block has a third surface 32 and a fourth surface 33 corresponding to the third surface 32, the third surface 32 is an upper surface, the fourth surface 33 is a lower surface, and the fourth surface 33 is a lower surface. Three surfaces 32 are provided with a third trapezoidal block 34 and a fourth trapezoidal block 35, the third trapezoidal block 34 is symmetrical to the fourth trapezoidal block 35, and a hole is formed between the third trapezoidal block 34 and the fourth trapezoidal block 35 for fixing the workpiece The V-shaped gap, the included angle of the V-shaped gap is 80 degrees. The included angle between the two hypotenuses forming the V-shaped gap and the third surface 32 is 50 degrees. The advantage of this design is that no matter what shape or size the two ends of the electric control valve to be processed are, there are always at least two points on the two hypotenuses of the V-shaped gap that are in contact with one end of the electric control valve to be processed, which is convenient for more stable Fix the electric regulating valve to be processed. The center of the fourth surface 33 is provided with a protruding second key block 31, and the right V-shaped block is also provided with a plurality of second fixing holes 36, and the second fixing holes 36 penetrate from the third surface 32 to the fourth surface 33. The fixing groove 14 is fixedly connected with the second fixing hole 36 of the right V-shaped block by bolts, and the sides of the third trapezoidal block 34 and the fourth trapezoidal block 35 are respectively provided with a third fixing hole 37 . The right V-shaped block is the leading block, which not only needs to be fixed with the bottom plate of the vehicle center head, but also needs to be fixed with the electric control valve to be processed. There is also an independent fixing plate (not shown) on the right V-shaped block. When the electric control valve to be processed When the regulating valve is placed on the right V-shaped block, the fixing plate and the third fixing hole 37 of the right V-shaped block are connected by bolts and nuts, the right V-shaped block is set as the leading block, and the left V-shaped block is set as the auxiliary block. The advantage is that when disassembling the electric regulating valve to be processed, it is not necessary to disassemble both sides, only one side is required. Therefore, it is more convenient to use and install, saves operation time, and simplifies the operation steps.

Put the middle head position of the electric control valve to be processed upward, place the two ends of the electric control valve to be processed on the right V-shaped block and the left V-shaped block respectively, and calibrate through the calibration hole 15 to adjust the right V-shaped block and the left V-shaped block. Position distance between the V-shaped blocks, then the right V-shaped block and the left V-shaped block are fixed with the left fixed groove 13, the right fixed groove 14. Then the fixing plate and the third fixing hole 37 of the right V-shaped block are fixed, and the processing of the flange hole of the middle head can be started. The electric regulating valve to be processed is processed, and if the required processing is of different sizes, then the right V-shaped block and the left V-shaped block and the left fixed groove 13 and the right fixed groove 14 need to be unclamped for adjustment.

The parts of the flange hole processing and positioning jig in the above-mentioned electric control valve include but are not limited to the above-mentioned types.

Those of ordinary skill in the art should be able to understand that one of the characteristics or purposes of the present invention is that the flange hole processing and positioning jig for an electric control valve according to the present invention is characterized by long service life and stable positioning Better performance, meet a variety of processing needs, easy loading and unloading in the production process.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation, although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (7)

1. A positioning fixture for flange hole processing in an electric control valve, characterized in that: it comprises a center head base plate, a left V-shaped block and a right V-shaped block, and the center head base plate comprises a left positioning groove, a right positioning groove, The left fixing groove and the right fixing groove, the bottom of the left V-shaped block is provided with a first key block, the bottom of the right V-shaped block is provided with a second key block, and the first key block is inserted into the left positioning groove Among them, the left V-shaped block and the left fixing groove are fixed by bolts, the second key block is inserted into the right positioning groove, and the right V-shaped block and the right fixing groove are fixed by bolts. 2. A flange hole processing and positioning fixture for an electric control valve according to claim 1, characterized in that: the center of the bottom plate of the car center head has a calibration hole, and the left positioning groove and the right positioning groove are respectively arranged on the The two sides of described calibration hole, and communicate with described calibration hole, the groove width of described left positioning groove and right positioning groove is smaller than the aperture of described calibration hole, and described left positioning groove and right positioning groove are on the same straight line, A left fixing groove is respectively arranged on both sides of the left positioning groove, and a first processing hole is arranged on the end of the two left fixing grooves close to the calibration hole, and a first machining hole is respectively arranged on both sides of the right positioning groove. There is a right fixing groove, and a second processing hole is provided at the end close to the calibration hole of the two right fixing grooves. 3. A positioning jig for flange hole processing in an electric control valve according to claim 2, wherein the left fixing groove and the right fixing groove are both inverted T-shaped grooves. 4. A flange hole processing and positioning fixture for an electric control valve according to claim 1, wherein the left V-shaped block has a first surface and a second surface corresponding to the first surface, The first surface is an upper surface, the second surface is a lower surface, a first trapezoidal block and a second trapezoidal block are arranged on the first surface, and the first trapezoidal block is symmetrical to the second trapezoidal block , a V-shaped gap for fixing the workpiece is formed between the first trapezoidal block and the second trapezoidal block, and the center of the second surface is provided with a protruding first key block, and the left V-shaped block A plurality of first fixing holes are also provided, and the first fixing holes penetrate from the first surface to the second surface, and the left fixing groove is fixed to the first fixing holes of the left V-shaped block by bolts connect. 5. A flange hole processing and positioning fixture for an electric control valve according to claim 1, wherein the right V-shaped block has a third surface and a fourth surface corresponding to the third surface, The third surface is the upper surface, the fourth surface is the lower surface, the third surface is provided with a third trapezoidal block and a fourth trapezoidal block, and the third trapezoidal block is symmetrical to the fourth trapezoidal block , a V-shaped gap for fixing the workpiece is formed between the third trapezoidal block and the fourth trapezoidal block, the center of the fourth surface is provided with a protruding second key block, and the right V-shaped block A plurality of second fixing holes are also provided, and the second fixing holes penetrate from the third surface to the fourth surface, and the right fixing groove is fixed with the second fixing holes of the right V-shaped block by bolts connected, the sides of the third trapezoidal block and the fourth trapezoidal block are respectively provided with a third fixing hole. 6. A flange hole processing and positioning fixture for an electric control valve according to claim 5, wherein the flange hole processing and positioning fixture for the electric control valve also includes a fixing plate, and the fixing plate is connected to the The third fixing hole of the right V-shaped block is connected by bolts and nuts. 7. A flange hole processing and positioning jig for an electric control valve according to claim 4 or 5, wherein the included angle of the V-shaped gap is 80 degrees.