End cover jig capable of achieving batch machining and accurate positioning

Abstract

The utility model relates to an end cover jig capable of achieving batch machining and accurate positioning, and belongs to the technical field of special jigs for hydraulic oil cylinders. According to the utility model, the plurality of jig modules are constructed on the bottom plate by utilizing the modularized thinking, and the plurality of jig modules can be freely arranged, arranged and installed according to the actual production and processing requirements; furthermore, each jig module is provided with a supporting mechanism, a plurality of pressing plate corner oil cylinders and a packing clamping jaw to form a jig structure capable of limiting and fastening the rectangular end cover in multiple directions, so that the end cover and the position of a to-be-processed hole site on the surface of the end cover can be quickly and accurately positioned and fastened; the device is simple in structure and convenient to operate, a machining center can conveniently and accurately find the position of a to-be-machined hole site and smoothly and accurately machine the to-be-machined hole site, working efficiency and precision are improved, the device can adapt to various working condition environments of batch machining, practicability is high, adaptability is wide, operation is convenient and fast, and manual errors caused by traditional bench workers are avoided.

Description

Technical Field

[0001] The utility model relates to an end cover jig which can be processed in batches and has accurate positioning, and belongs to the technical field of special jigs for hydraulic cylinders. Background Art

[0002] The end cover (including the front cover and the rear cover) is an important part of the hydraulic cylinder and an indispensable part of the hydraulic cylinder. For example, the sealing system and the guide system are integrated inside the front cover, so the front cover is indispensable, otherwise the entire hydraulic cylinder will not be able to operate normally.

[0003] Generally, the end cover is provided with an installation and fixing hole, through which the pull rod passes, and the entire hydraulic cylinder can be locked with a locking nut. In addition, the end cover is also provided with an oil inlet, through which the hydraulic system injects high-pressure hydraulic oil into the rod chamber and rodless chamber of the hydraulic cylinder to realize the retraction and extension of the piston rod.

[0004] However, in the prior art, the mounting and fixing holes and the oil inlet of the end cover can only be processed by benchwork and can only be processed individually. In actual operation, the processed parts need to be replaced frequently, resulting in low processing efficiency. At the same time, since the oil inlet of the end cover generally adopts a tapered internal thread, the thread is often prone to "skew" when tapping by benchwork, resulting in poor processing accuracy and low quality of the final product.

[0005] At present, there are only a hydraulic pump end cover processing fixture such as CN219542319U and a bearing cover multi-station self-centering rotating fixture such as CN104227458B. Although these technical means have improved the positioning accuracy of the processed parts, they are still unable to achieve the fastening and support of the installation fixing holes and the oil inlet, resulting in the inability to accurately process various hole positions on the end cover surface. In the actual production process, there is still a risk of workpiece loosening, affecting the quality of the finished product.

[0006] Therefore, in order to overcome the above defects, it is urgent to find an end cover fixture that can not only improve work efficiency, but also strengthen the positioning and fastening of the workpiece and facilitate the processing of the hole. Utility Model Content

[0007] In order to solve the above problems, the utility model provides an end cap jig that can be processed in batches and has accurate positioning, including a base plate and at least one jig module installed on the base plate, each of the jig modules includes:

[0008] A supporting mechanism, used to carry and fix the end cover;

[0009] A first pressing plate corner oil cylinder and a second pressing plate corner oil cylinder having the same structure, wherein the first pressing plate corner oil cylinder and the second pressing plate corner oil cylinder are symmetrically arranged on both sides of the supporting mechanism; and

[0010] At least two clamping mechanisms of the same structure are arranged on the edge of the supporting mechanism;

[0011] When the end cover is fixed to the supporting mechanism, the first pressure plate corner cylinder and the second pressure plate corner cylinder are allowed to abut against at least a portion of the upper surface of the end cover, and the clamping mechanism is allowed to abut against the edge of the end cover, and the end cover is limited and fastened under the contact action of the first pressure plate corner cylinder, the second pressure plate corner cylinder, the clamping mechanism and the supporting mechanism.

[0012] In some embodiments of the utility model, the support mechanism includes a cross-shaped support plate capable of carrying and fixing a rectangular end cover, the cross-shaped support plate having four centrally symmetrical rounded notch structures and a central circular hole, and when the end cover is fixed to the cross-shaped support plate, the four rounded notch structures correspond to the four corners of the end cover, and the rounded notch structure is used to effectively avoid air for the drill bit of the machining center.

[0013] Furthermore, the two clamping mechanisms are respectively a first clamping mechanism and a second clamping mechanism which are arranged near two adjacent rounded notch structures, the first clamping mechanism includes a third pressure plate corner cylinder and a first clamping jaw driven by the third pressure plate corner cylinder; the second clamping mechanism includes a fourth pressure plate corner cylinder and a second clamping jaw driven by the fourth pressure plate corner cylinder; the structures of the first pressure plate corner cylinder, the second pressure plate corner cylinder, the third pressure plate corner cylinder and the fourth pressure plate corner cylinder are exactly the same, and the structures of the first clamping jaw and the second clamping jaw are exactly the same.

[0014] Furthermore, the first pressing plate angle cylinder comprises:

[0015] An oil cylinder, the oil cylinder having a first chamber and a second chamber connected to the first chamber, the oil cylinder being mounted on the bottom plate via an annular gasket;

[0016] The piston comprises a piston head matched with the first chamber, and a piston rod connected with the piston head and matched with the second chamber, wherein the piston head has a countersunk hole;

[0017] A pin connecting the countersunk hole and the inner wall of the first chamber along the direction of the piston rod, the pin having a curved guide groove, the curved guide groove and the countersunk hole being matched with a steel ball; and

[0018] A pressure plate is connected to the piston rod.

[0019] In one embodiment of the present utility model, the curved guide groove includes an arc segment guide groove located on a side of the pin shaft close to the countersunk hole, and a straight segment guide groove connected to the arc segment guide groove;

[0020] When the piston moves in the direction of the first chamber relative to the second chamber, under the guidance of the steel ball and the curved guide groove, the piston head will first make a rotational movement within 90 degrees along the arc segment guide groove and drive the pressure plate to rotate synchronously to the top of the end cover through the piston rod, and then the piston head will make a linear movement along the straight segment guide groove to cause the pressure plate to press down until the upper surface of the end cover is pressed; when the piston moves in the direction of the second chamber relative to the first chamber, under the guidance of the steel ball and the curved guide groove, the piston head will first make a linear movement along the straight segment guide groove to cause the pressure plate to lift up, and then the piston head will make a rotational movement within 90 degrees along the arc segment guide groove and drive the pressure plate to rotate synchronously to the area above the end cover through the piston rod. The advantage of setting it to rotary pressing and lifting is that it can save equipment space; in addition, if direct pressing is adopted, the layout of the oil cylinder will change, and the oil cylinder needs to be offset to press directly, which is very likely to affect the layout and even cause interference. Therefore, setting it to rotary pressing and lifting can avoid this problem.

[0021] Furthermore, the first clamping jaw comprises:

[0022] The base has a third groove on the upper surface of the base, a first groove and a second groove on the upper surface of the base and symmetrically arranged on both sides of the third groove, and a fourth groove on the rear surface of the base, wherein the depth of the third groove is greater than the depths of the first groove and the second groove;

[0023] A V-shaped chuck assembled in the third groove, the V-shaped chuck having a first wedge-shaped surface;

[0024] A thrust block is assembled in the fourth groove and connected to the first groove and the second groove respectively through two first elastic members, and the thrust block has a second wedge-shaped surface that contacts and cooperates with the first wedge-shaped surface;

[0025] The thrust block allows the V-shaped chuck to be pushed out in the horizontal direction through the relative sliding of the second wedge surface and the first wedge surface when it is subjected to the vertical downward pressure provided by the third pressure plate angle cylinder and sufficient to overcome the resistance of the first elastic member (the third pressure plate angle cylinder and the fourth pressure plate angle cylinder both have the same pressure plate structure as the first pressure plate angle cylinder, and the pressure plate structure can be used to give the thrust block vertical downward pressure, and its working principle is the same as that of the first pressure plate angle cylinder).

[0026] Furthermore, the third groove and the fourth groove have a first locating pin and a second locating pin respectively, the V-shaped chuck has a chuck guide groove, the first locating pin is placed in the chuck guide groove, and the first locating pin is connected to a second elastic member; the thrust block has a thrust block locating groove that cooperates with the second locating pin.

[0027] In some embodiments of the present invention, the first groove and the second groove have a plurality of clamping jaw positioning holes, allowing fasteners to pass through the clamping jaw positioning holes so that the first clamping jaw is installed on the base plate.

[0028] In some embodiments of the present invention, the upper surface of the V-shaped clamp and the rear surface of the thrust block are respectively provided with an upper cover plate and a rear cover plate, wherein the upper cover plate is used to press the V-shaped clamp for limiting the position; the lower cover plate is used to press the thrust block to prevent the thrust block from loosening.

[0029] In some embodiments of the utility model, the cross-shaped support plate is also provided with a plurality of inner holes around the central circular hole, the annular gasket and the oil cylinder respectively have a through hole and a mounting hole with the same caliber, and the arrangement of the inner hole, the through hole and the mounting hole enables the iron filings generated when the drill bit processes the "oil inlet" of the end cover to flow smoothly to the bottom plate and be collected; a front baffle and a rear baffle are also provided on both sides of the support plate, and the front baffle and the rear baffle both have a semicircular notch.

[0030] Beneficial effects of the utility model:

[0031] The utility model utilizes modular thinking to construct multiple fixture modules on the base plate, and the multiple fixture modules can be freely arranged, laid out, and installed according to actual production and processing needs; further, each fixture module is provided with a supporting mechanism, multiple pressure plate corner cylinders, and clamping claws to form a fixture structure that can limit and tighten the rectangular end cover in multiple directions, and can quickly and accurately locate and tighten the end cover and the position of the holes to be processed on its surface, so that the machining center can accurately find the position of the holes to be processed and process them smoothly and accurately, which not only improves the work efficiency and precision, but also can adapt to a variety of working conditions of batch processing, has strong practicality, wide adaptability, and is easy to operate, avoiding the manual errors caused by traditional benchwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a plurality of fixture modules installed on a base plate in one embodiment of the present invention.

[0033] Figure 2 It is a structural schematic diagram of a single fixture module in one embodiment of the utility model.

[0034] Figure 3 It is a schematic structural diagram of a rectangular end cover to be processed in one embodiment of the utility model.

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the first pressure plate angle cylinder in one embodiment of the utility model.

[0036] Figure 5It is a cross-sectional view and a side perspective view of the first pressure plate angle cylinder in one embodiment of the utility model.

[0037] Figure 6 It is a schematic structural diagram of a pin shaft in one embodiment of the utility model.

[0038] Figure 7 It is a schematic structural diagram of a clamping jaw in one embodiment of the utility model.

[0039] Figure 8 It is a three-dimensional schematic diagram of a base in one direction in one embodiment of the utility model.

[0040] Fig. 9 It is a three-dimensional schematic diagram of the base in another direction in one embodiment of the utility model.

[0041] Fig.10 It is a schematic structural diagram of a V-shaped chuck in one embodiment of the utility model.

[0042] Fig.11 It is a schematic structural diagram of a thrust block in one embodiment of the utility model.

[0043] Fig.12 It is a schematic structural diagram of an annular gasket in one embodiment of the utility model.

[0044] Fig.13 It is a schematic structural diagram of a front baffle and a rear baffle in one embodiment of the utility model.

[0045] Fig.14 It is a schematic structural diagram of a cross-shaped support plate in one embodiment of the utility model.

[0046] Fig.15 It is a schematic structural diagram of an upper cover plate and a rear cover plate in one embodiment of the utility model.

[0047] In the figure, 1, support mechanism; 2, first pressing plate angle cylinder; 3, second pressing plate angle cylinder; 4, third pressing plate angle cylinder; 5, fourth pressing plate angle cylinder; 6, first clamping jaw; 7, end cover; 8, second clamping jaw; 9, bottom plate;

[0048] 11. Cross-shaped support plate; 12. Rounded corner notch structure; 13. Center circular hole; 14. Front baffle; 15. Rear baffle;

[0049] 21. Oil cylinder; 22. Piston; 23. Pin; 24. Press plate; 25. Steel ball; 211. First chamber; 212. Second chamber; 221. Piston rod; 222. Piston head; 231. Arc segment guide groove; 232. Straight segment guide groove; 26. Annular gasket;

[0050] 61. Base; 611. First groove; 612. Second groove; 613. Third groove; 614. Fourth groove; 615. First positioning pin; 616. Second positioning pin; 62. V-shaped chuck; 621. First wedge surface; 63. Thrust block; 631. Second wedge surface; 64. First elastic member; 65. Second elastic member; 66. Chuck guide groove; 67. Thrust block positioning groove; 68. Clamping jaw positioning hole; 691. Upper cover; 692. Rear cover. DETAILED DESCRIPTION

[0051] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] Example 1

[0055] like Figure 1-15 As shown, the utility model provides an end cap jig that can be processed in batches and has accurate positioning, including a base plate 9 and at least one jig module installed on the base plate 9, each of the jig modules includes:

[0056] A support mechanism 1 is used to carry and fix the end cover 7; the support mechanism 1 includes a cross-shaped support plate 11 capable of carrying and fixing the rectangular end cover 7, the cross-shaped support plate 11 has four centrally symmetrical rounded notch structures 12 and a central circular hole 13, when the end cover 7 is fixed to the cross-shaped support plate 11, the four rounded notch structures 12 overlap with the four corners of the end cover 7 correspondingly up and down, and the rounded notch structures 12 are used to effectively avoid air when the drill of the machining center penetrates the hole; the cross-shaped support plate 11 is also provided with a plurality of inner holes around the central circular hole, the annular pad 26 and the oil cylinder 21 respectively have through holes and mounting holes with the same caliber; a front baffle 14 and a rear baffle 15 are also provided on both sides of the support plate, and the front baffle 14 and the rear baffle 15 both have semicircular notches;

[0057] A first pressing plate corner oil cylinder 2 and a second pressing plate corner oil cylinder 3 having the same structure, wherein the first pressing plate corner oil cylinder 2 and the second pressing plate corner oil cylinder 3 are symmetrically arranged on both sides of the supporting mechanism 1; and

[0058] The first clamping mechanism and the second clamping mechanism of the same structure are respectively arranged near the edges of two adjacent rounded notch structures 12 of the cross-shaped support plate 11; the first clamping mechanism includes a third pressure plate corner cylinder 4 and a first clamping jaw 6 driven by the third pressure plate corner cylinder 4; the second clamping mechanism includes a fourth pressure plate corner cylinder 5 and a second clamping jaw 8 driven by the fourth pressure plate corner cylinder 5; the structure and working principle of the third pressure plate corner cylinder 4 and the fourth pressure plate corner cylinder 5 are exactly the same as those of the first pressure plate corner cylinder 2 and the second pressure plate corner cylinder 3; the structure of the first clamping jaw 6 and the second clamping jaw 8 are exactly the same.

[0059] Furthermore, if Figure 4-6 As shown, the first pressing plate angle cylinder 2 comprises:

[0060] The oil cylinder 21 has a first chamber 211 and a second chamber 212 connected to the first chamber 211, and the oil cylinder 21 is mounted on the bottom plate 9 via an annular gasket 26;

[0061] The piston 22 includes a piston head 222 matched with the first chamber, and a piston rod 221 connected to the piston head 222 and matched with the second chamber, wherein the piston head 222 has a countersunk hole;

[0062] A pin 23 connects the countersunk hole and the inner wall of the first chamber 211 along the direction of the piston rod 221, and the pin 23 has a curved guide groove, and the curved guide groove and the countersunk hole are matched through a steel ball 25; the curved guide groove includes an arc segment guide groove 231 located on the side of the pin 23 close to the countersunk hole, and a straight segment guide groove 232 connected to the arc segment guide groove 231; and

[0063] The pressure plate 24 is connected to the piston rod 221 .

[0064] Furthermore, the first clamping jaw 6 comprises:

[0065] The base 61 has a third groove 613 located on the upper surface of the base 61, a first groove 611 and a second groove 612 located on the upper surface of the base and symmetrically arranged on both sides of the third groove 613, and a fourth groove 614 located on the rear surface of the base, wherein the depth of the third groove 613 is greater than the depths of the first groove 611 and the second groove 612;

[0066] A V-shaped chuck 62, assembled in the third groove 613, wherein the V-shaped chuck 62 has a first wedge surface 621;

[0067] The thrust block 63 is assembled in the fourth groove 614 and connected to the first groove 611 and the second groove 612 respectively through two first elastic members 64, and the thrust block 63 has a second wedge surface 631 that contacts and cooperates with the first wedge surface 621;

[0068] Furthermore, the third groove 613 and the fourth groove 614 respectively have a first positioning pin 615 and a second positioning pin 616, the V-shaped chuck 62 has a chuck guide groove 66, the first positioning pin 615 is placed in the chuck guide groove 66, and the first positioning pin 615 is connected to the second elastic member 65; the thrust block 63 has a thrust block positioning groove 67 that cooperates with the second positioning pin 616.

[0069] The first groove 611 and the second groove 612 have a plurality of clamping jaw positioning holes 68 , which allow fasteners to pass through the clamping jaw positioning holes 68 so that the first clamping jaw 6 is mounted on the base plate 9 .

[0070] The upper surface of the V-shaped clamp 62 and the rear surface of the thrust block 63 are respectively provided with an upper cover plate 691 and a rear cover plate 692, wherein the upper cover plate 691 is used to press the V-shaped clamp 62 for limiting the position; the lower cover plate 692 is used to press the thrust block 63 to prevent the thrust block 63 from loosening.

[0071] Example 2

[0072] This embodiment demonstrates the application of batch processing using the end cap fixture of embodiment 1 that can be batch processed and has accurate positioning. The following are the processing operation steps of a single fixture module:

[0073] Step 1: Install the end cover 7 on the cross-shaped support plate 11;

[0074] Step 2: Inject high-pressure oil into the cylinder 21 of the first pressure plate angle cylinder 2, so that when the piston 22 moves toward the first chamber 211 relative to the second chamber 212, under the guidance of the steel ball 25 and the curved guide groove, the piston head 222 will first rotate within 90 degrees along the arc segment guide groove 231 and drive the pressure plate 24 to rotate synchronously to the top of the end cover 7 through the piston rod 221, and then the piston head 222 will move linearly along the straight segment guide groove 232 to press the pressure plate down until it presses the upper surface of the end cover 7; similarly, the second pressure plate angle cylinder 3 also presses the upper surface of the end cover 7 in this way;

[0075] Step 3: Inject high-pressure oil into the cylinder 21 of the third pressure plate angle cylinder 4, and press down the thrust block 63 in the same way as the first pressure plate angle cylinder 2 in step 2. The thrust block 63 allows the V-shaped clamp 62 to be pushed out in the horizontal direction through the relative sliding of the second wedge surface 631 and the first wedge surface 621 when it is subjected to the vertical downward pressure provided by the third pressure plate angle cylinder 4 and is sufficient to overcome the resistance of the first elastic member 64, so that the V-shaped clamp 62 abuts against one corner of the end cover 7; and the fourth pressure plate angle cylinder 5 also causes the second clamping claw to abut against the other corner of the end cover 7 in the same way; thus, the positioning is completed;

[0076] Step 4: Use a machining center to process four mounting holes of the end cover 7. When the drill penetrates the holes, the rounded notch structure 12 forms an escape space.

[0077] Step 5: Process the lateral oil inlet of the end cover 7 through a machining center, and process the end cover 7 from the semicircular notch of the front baffle 14 or the semicircular notch of the rear baffle 15 by means of a drill and a tap.

[0078] Although the present invention has been disclosed as above in terms of preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. An end cap jig capable of batch processing and accurate positioning, comprising a base plate and at least one jig module mounted on the base plate, characterized in that: Each of the fixture modules comprises: A supporting mechanism, used to carry and fix the end cover; A first pressing plate corner oil cylinder and a second pressing plate corner oil cylinder having the same structure, wherein the first pressing plate corner oil cylinder and the second pressing plate corner oil cylinder are symmetrically arranged on both sides of the supporting mechanism; and At least two clamping mechanisms of the same structure are arranged on the edge of the supporting mechanism; When the end cover is fixed to the supporting mechanism, the first pressure plate corner cylinder and the second pressure plate corner cylinder are allowed to abut against at least a portion of the upper surface of the end cover, and the clamping mechanism is allowed to abut against the edge of the end cover, and the end cover is limited and fastened under the contact action of the first pressure plate corner cylinder, the second pressure plate corner cylinder, the clamping mechanism and the supporting mechanism.

2. According to claim 1, the end cap jig capable of batch processing and accurate positioning is characterized in that: The support mechanism includes a cross-shaped support plate capable of supporting and fixing a rectangular end cover, wherein the cross-shaped support plate has four centrally symmetrical rounded notch structures and a central circular hole, and when the end cover is fixed to the cross-shaped support plate, the four rounded notch structures correspond to the four corners of the end cover.

3. The end cap jig capable of batch processing and accurate positioning according to claim 2, characterized in that: The two clamping mechanisms are respectively a first clamping mechanism and a second clamping mechanism which are arranged near two adjacent rounded notch structures. The first clamping mechanism includes a third pressure plate corner cylinder and a first clamping jaw driven by the third pressure plate corner cylinder; the second clamping mechanism includes a fourth pressure plate corner cylinder and a second clamping jaw driven by the fourth pressure plate corner cylinder; the structures of the first pressure plate corner cylinder, the second pressure plate corner cylinder, the third pressure plate corner cylinder and the fourth pressure plate corner cylinder are exactly the same, and the structures of the first clamping jaw and the second clamping jaw are exactly the same.

4. The end cap jig capable of batch processing and accurate positioning according to claim 3 is characterized in that: The first pressing plate angle cylinder comprises: An oil cylinder, the oil cylinder having a first chamber and a second chamber connected to the first chamber, the oil cylinder being mounted on the bottom plate via an annular gasket; The piston comprises a piston head matched with the first chamber, and a piston rod connected with the piston head and matched with the second chamber, wherein the piston head has a countersunk hole; A pin connecting the countersunk hole and the inner wall of the first chamber along the direction of the piston rod, the pin having a curved guide groove, the curved guide groove and the countersunk hole being matched with a steel ball; and A pressure plate is connected to the piston rod.

5. The end cap jig capable of batch processing and accurate positioning according to claim 4, characterized in that: The curved guide groove includes an arc segment guide groove located on a side of the pin shaft close to the countersunk hole and a straight segment guide groove connected to the arc segment guide groove.

6. The end cap jig capable of batch processing and accurate positioning according to claim 3, characterized in that: The first clamping jaw comprises: The base has a third groove on the upper surface of the base, a first groove and a second groove on the upper surface of the base and symmetrically arranged on both sides of the third groove, and a fourth groove on the rear surface of the base, wherein the depth of the third groove is greater than the depths of the first groove and the second groove; A V-shaped chuck assembled in the third groove, the V-shaped chuck having a first wedge-shaped surface; A thrust block is assembled in the fourth groove and connected to the first groove and the second groove respectively through two first elastic members, and the thrust block has a second wedge-shaped surface that contacts and cooperates with the first wedge-shaped surface; The thrust block allows the V-shaped clamp to be pushed out in a horizontal direction through relative sliding between the second wedge surface and the first wedge surface when subjected to a vertical downward pressure sufficient to overcome the resistance of the first elastic member.

7. The end cap jig capable of batch processing and accurate positioning according to claim 6, characterized in that: The third groove and the fourth groove have a first locating pin and a second locating pin respectively, the V-shaped chuck has a chuck guide groove, the first locating pin is placed in the chuck guide groove, and the first locating pin is connected to a second elastic member; the thrust block has a thrust block locating groove that cooperates with the second locating pin.

8. The end cap jig capable of batch processing and accurate positioning according to claim 6, characterized in that: The first groove and the second groove have a plurality of clamping jaw positioning holes, allowing fasteners to pass through the clamping jaw positioning holes so that the first clamping jaw is installed on the base plate.

9. The end cap jig capable of batch processing and accurate positioning according to claim 6, characterized in that: An upper cover plate and a rear cover plate are respectively arranged on the upper surface of the V-shaped chuck and the rear surface of the thrust block.

10. The end cap jig capable of batch processing and accurate positioning according to claim 4, characterized in that: The cross-shaped support plate is also provided with a plurality of inner holes around the central circular hole, and the annular gasket and the oil cylinder respectively have through holes and mounting holes with the same diameter; a front baffle and a rear baffle are also provided on both sides of the support plate, and both the front baffle and the rear baffle have semicircular notches.

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