Assembling tool convenient to reverse and used for production of backstop

Abstract

The invention is suitable for the related technical field of backstop machining, and provides a backstop production assembly tool convenient to reverse, which comprises a base, a backstop main body is placed on the base, first clamping blocks are arranged on two sides of the backstop main body, and the first clamping blocks are in contact with the side surface of the backstop main body to clamp the backstop main body; second clamping blocks are arranged on the two sides of the backstop body, the second clamping blocks make contact with the side face of the backstop body to clamp the backstop body, a pushing part is arranged on the base, and the pushing part is used for adjusting the distance between the two first clamping blocks so that the first clamping blocks can not clamp the backstop body any more. According to the assembly tool convenient to reverse and used for production of the backstop, the pushing part is used for controlling the distance between the first clamping blocks and the clamping force of the second clamping blocks in a linkage mode, only the clamping position needs to be adjusted during reversing operation, a workpiece is not completely loosened, and repeated positioning errors are effectively avoided; the clamping device has the advantages that clamping force adjustment is flexible, and workpiece clamping does not need to be completely loosened during reversing operation.

Description

Technical Field

[0001] The present invention belongs to the technical field related to the processing of backstops, and particularly relates to an assembly tooling for facilitating commutation in the production of backstops. Background Art

[0002] Backstops are devices widely used in fields such as supporting speed reducers, coking plants, transportation machinery, conveyors, elevators, electric rollers, and other mechanical equipment that require backstop requirements. Traditional backstops are roughly divided into three categories: one is the roller star-wheel type backstop, the second is the friction type backstop, and the third is the pawl type backstop. In existing mechanical transmission devices, in order to ensure the safety of equipment and people during shutdown or power failure, a backstop device sometimes needs to be installed on the rotating parts. When processing a backstop, it needs to be clamped by a tooling.

[0003] The applicant searched and found a Chinese patent with the publication number CN221115811 U named an assembly tooling for facilitating commutation in the production of backstops. It sets a turnover and surface-changing mechanism. The turntable drives the gear to rotate by pulling with multiple movable tooth blocks. The gear makes a circular motion through the restriction of the rotating ring and the rotating rod. Then the gear makes a circular motion through the restriction of the fixed disk and multiple fixed tooth blocks. That is, when the gear rotates on its own and makes a circular motion on the fixed disk, the backstop that enters the turnover clamp is synchronously driven to move to the other side and rotate on its own. Thus, the turnover clamp realizes turnover and surface-changing and slides out from the other side, improving the production efficiency of the backstop. However, when the above device is actually used, there are some deficiencies. When producing a roller-type backstop, it is often clamped by a tooling. But during production, the clamped part cannot be processed, such as grinding or other processing operations, resulting in incomplete processing of the backstop. Based on this, an assembly tooling for facilitating commutation in the production of backstops that can solve the above problems is now proposed. Summary of the Invention

[0004] The present invention provides an assembly tooling for facilitating commutation in the production of backstops, aiming to solve the problem that when producing a roller-type backstop, it is often clamped by a tooling, but during production, the clamped part cannot be processed, such as grinding or other processing operations, resulting in incomplete processing of the backstop.

[0005] The present invention is implemented as follows. An assembly tool for facilitating commutation in the production of a backstop includes a base. A backstop main body is placed on the base. First clamping blocks are arranged on both sides of the backstop main body. The first clamping blocks are in contact with the side surfaces of the backstop main body to clamp it. Second clamping blocks are arranged on both sides of the backstop main body. The second clamping blocks are in contact with the side surfaces of the backstop main body to clamp it. A pushing part is arranged on the base. The pushing part is used to adjust the distance between the two first clamping blocks so that the first clamping blocks no longer clamp the backstop main body, and the pushing part is used to increase the clamping force of the two second clamping blocks on the backstop main body.

[0006] Preferably, a groove is arranged on the base. A placement plate is arranged in the groove. The lower end of the placement plate is connected to the groove through a lifting part. The placement plate is used to place the backstop main body.

[0007] Preferably, a clamping curved surface is arranged on the first clamping block.

[0008] Preferably, a first connecting block is fixedly connected to the side surface of the first clamping block. The first connecting block is connected to the base through a first connecting unit. A rotating unit for driving the first clamping block to rotate is arranged on the base.

[0009] Preferably, the first connecting unit includes a first support rod fixedly connected to the base. A first insertion rod is fixedly connected to the side surface of the first support rod. A first clamping plate is fixedly connected to the end of the first insertion rod. A first clamping groove cooperating with the first clamping plate is arranged in the first connecting block.

[0010] Preferably, the rotating unit includes a rotating motor. The rotating motor is fixedly connected to the base through a second support rod. A first rotating sleeve is fixedly connected to the output end of the rotating motor. A second rotating sleeve is sleeved outside the first connecting block. A first set of teeth is arranged on the first connecting block. A second set of teeth meshing with the first set of teeth is arranged on the inner side of the second rotating sleeve. A transmission belt is arranged in a cooperative manner on the outer sides of the first rotating sleeve and the second rotating sleeve.

[0011] Preferably, the pushing part includes a pushing cylinder, the pushing cylinder is fixedly connected in the groove, the output end of the pushing cylinder is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a first pushing block symmetrically arranged through the first connecting rod, the first pushing block is provided with a first inclined surface, the outer side of the first connecting block is sleeved with a first ring, the first connecting block is provided with a second clamping groove matching the first ring, the side surface of the first ring is fixedly connected to the second pushing block through the second connecting rod, the second pushing block is provided with a second inclined surface, the first inclined surface is fixedly connected to a clamping plate, the second inclined surface is provided with a third clamping groove matching the clamping plate, the side surface of the first support rod is fixedly connected to a third connecting rod, the third connecting rod is fixedly connected to a third support rod, the second connecting rod is provided with a through groove for the third support rod to pass through, and the end of the third support rod is fixedly connected to a limiting plate.

[0012] Preferably, the side surface of the first support rod is connected with a second ring via a first spring for providing elastic force, and the first spring is sleeved on the outer side of the first insertion rod.

[0013] Preferably, a fourth connecting rod is fixedly connected to the side of the third connecting rod, a second clip plate is fixedly connected to the end of the fourth connecting rod, a second connecting block is fixedly connected to the side of the second clamping block, a fourth clip groove cooperating with the second clip plate is provided in the second connecting block, the second clip plate is connected to the fourth clip groove by a second spring for providing elastic force, a moving block is sleeved on the outer side of the fourth connecting rod, a third pushing block is fixedly connected to the moving block, a fourth pushing block is fixedly connected to the first pushing block, a third inclined surface is provided on the third pushing block, and a fourth inclined surface is provided on the fourth pushing block.

[0014] Preferably, a fourth support rod is fixedly connected to the base, and a support plate for supporting the second rotating sleeve is fixedly connected to the upper end of the fourth support rod, and support balls distributed in a circumferential array are arranged on the inner side of the support plate.

[0015] Compared with the prior art, the embodiments of the present application have the following beneficial effects: by controlling the spacing between the first clamping block and the clamping force of the second clamping block through linkage control of the pushing part, only the clamping position needs to be adjusted during the reversing operation without completely releasing the workpiece, thereby effectively avoiding repeated positioning errors. The embodiment of the present application has the advantages of flexible adjustment of the clamping force and no need to completely release the workpiece clamp during the reversing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of an assembly tool for convenient reversing used in the production of a backstop provided by the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 It is a schematic side view of an assembly tooling for a check valve production that is convenient for commutation provided by the present invention;

[0018] Figure 3 It is a schematic overall structure of an assembly tooling for a check valve production that is convenient for commutation provided by the present invention Figure 1 ;

[0019] Figure 4 It is Figure 3 an enlarged structural schematic diagram of part A in

[0020] Figure 5 It is a schematic partial structure of an assembly tooling for a check valve production that is convenient for commutation provided by the present invention Figure 1 ;

[0021] Figure 6 It is a schematic partial structure of an assembly tooling for a check valve production that is convenient for commutation provided by the present invention Figure 2 ;

[0022] Figure 7 It is a schematic diagram of the structure for supporting balls on the support rod member in an assembly tooling for a check valve production that is convenient for commutation provided by the present invention;

[0023] Figure 8 It is a schematic diagram of the structure in which the first connecting block and the first clamping plate are clamped in an assembly tooling for a check valve production that is convenient for commutation provided by the present invention;

[0024] Figure 9 It is a schematic diagram of the structure in which the second connecting block and the second clamping plate are clamped in an assembly tooling for a check valve production that is convenient for commutation provided by the present invention;

[0025] Figure 10 It is a schematic diagram of the structure in which the clamping plate member and the third clamping groove are clamped in an assembly tooling for a check valve production that is convenient for commutation provided by the present invention.

[0026] Annotation of reference numerals: 1. Base; 2. Check valve body; 3. First clamping block; 4. Second clamping block; 5. Groove; 6. Placing plate; 7. Clamping surface; 8. First connecting block; 9. First support rod; 10. First insertion rod; 11. First clamping plate; 12. First clamping groove; 13. Rotating motor; 14. Second support rod; 15. First rotating sleeve; 16. Second rotating sleeve; 17. First gear teeth; 18. Second gear teeth; 19. Transmission belt; 20. Pushing cylinder; 21. Connecting rod member; 22. First connecting rod; 23. First pushing block; 24. First inclined surface; 25. First collar; 26. Second clamping groove; 27. Second connecting rod; 28. Second pushing block; 29. Second inclined surface; 30. Clamping plate member; 31. Third clamping groove; 32. Third connecting rod; 33. Third support rod; 34. Through groove; 35. Limiting plate; 36. First spring; 37. Second collar; 38. Fourth connecting rod; 39. Second clamping plate; 40. Second connecting block; 41. Fourth clamping groove; 42. Second spring; 43. Moving block; 44. Third pushing block; 45. Fourth pushing block; 46. Third inclined surface; 47. Fourth inclined surface; 48. Fourth support rod; 49. Support plate member; 50. Support ball; 51. Lifting part. Detailed implementation manners

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0028] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] An embodiment of the present invention provides a pressing and fixing device for machining, as Figures 1 - 10 shown

[0030] It includes a base 1, on which a backstop body 2 is placed. On both sides of the backstop body 2, there are first clamping blocks 3, which are in contact with the side surface of the backstop body 2 to clamp it. On both sides of the backstop body 2, there are second clamping blocks 4, which are in contact with the side surface of the backstop body 2 to clamp it. A pushing part is arranged on the base 1, which is used to adjust the distance between the two first clamping blocks 3 so that the first clamping blocks 3 no longer clamp the backstop body 2, and the pushing part is used to increase the clamping force of the two second clamping blocks 4 on the backstop body 2.

[0031] A groove 5 is arranged on the base 1, and a placing plate 6 is arranged in the groove 5. The lower end of the placing plate 6 is connected to the groove 5 through a lifting part 51, and the placing plate 6 is used to place the backstop body 2.

[0032] A clamping curved surface 7 is arranged on the first clamping block 3.

[0033] This assembly tooling for facilitating commutation in the production of the backstop takes the base 1 as the basic load-bearing component. The base 1 can be made of high-strength cast iron material and is formed by casting process to ensure its good stability and load-bearing capacity, and it can bear the weight and acting force of the backstop body 2 and each component during the working process.

[0034] A groove 5 is machined on the base 1. The shape and size of the groove 5 are designed according to the size of the placing plate 6 and the backstop body 2 to ensure that the placing plate 6 can be stably installed in the groove 5. The placing plate 6 is made of aluminum alloy material and is connected to the groove 5 through the lifting part 51. The lifting part 51 can be an electric push rod. One end of the electric push rod is fixed at the bottom of the groove 5, and the other end is connected to the lower end of the placing plate 6. By controlling the telescopic movement of the electric push rod, the lifting of the placing plate 6 in the groove 5 is realized, which is convenient for taking and placing the backstop body 2 and adjusting the height to meet the assembly requirements of different specifications of backstops.

[0035] The clamping curved surface 7 arranged on the first clamping block 3 has its curved surface shape designed according to the outer contour of the backstop body 2 and is precisely machined by a numerical control machining center to ensure that the clamping curved surface 7 can be closely attached to the side surface of the backstop body 2, improving the stability of clamping. The side surface of the second clamping block 4 is also smoothed to ensure that the friction force when contacting the backstop body 2 is moderate, which can not only realize effective clamping but also facilitate adjustment when needed.

[0036] The first connecting unit includes a first support rod 9 fixedly connected to the base 1. A first insertion rod 10 is fixedly connected to the side surface of the first support rod 9. A first clamping plate 11 is fixedly connected to the end of the first insertion rod 10. A first clamping groove 12 that cooperates with the first clamping plate 11 is provided in the first connecting block 8.

[0037] Combined with Figure 4 and Figure 7 , the rotating unit includes a rotating motor 13. The rotating motor 13 is fixedly connected to the base 1 through a second support rod 14. A first rotating sleeve 15 is fixedly connected to the output end of the rotating motor 13. A second rotating sleeve 16 is sleeved outside the first connecting block 8. A first set of teeth 17 is provided on the first connecting block 8. A second set of teeth 18 that meshes with the first set of teeth 17 is provided on the inner side of the second rotating sleeve 16. A transmission belt 19 is cooperatively arranged on the outer sides of the first rotating sleeve 15 and the second rotating sleeve 16.

[0038] The second rotating sleeve 16 sleeved outside the first connecting block 8 has a clearance fit with the first connecting block 8 to ensure that the second rotating sleeve 16 can rotate freely relative to the first connecting block 8. The first set of teeth 17 on the first connecting block 8 and the second set of teeth 18 on the inner side of the second rotating sleeve 16 are both made by hobbing process to ensure the accuracy of the teeth and the meshing effect. The outer sides of the first rotating sleeve 15 and the second rotating sleeve 16 are driven by the transmission belt 19. The transmission belt 19 is a synchronous belt to ensure the accuracy and stability of the transmission. When the rotating motor 13 works, through the transmission of the first rotating sleeve 15, the transmission belt 19 and the second rotating sleeve 16, the first connecting block 8 and the first clamping block 3 are driven to rotate, realizing the commutation operation of the overrunning clutch body 2.

[0039] A fourth support rod 48 fixedly connected to the base 1, and a support plate member 49 fixedly connected to the upper end thereof is connected to the fourth support rod 48 by bolts. Support balls 50 arranged in a circumferential array are provided on the inner side of the support plate member 49. The support balls 50 are installed on the support plate member 49 through bearings to reduce the friction force during the rotation of the second rotating sleeve 16 and improve the smoothness of the rotation.

[0040] Combined with Figure 2 , Figure 3 , Figure 5 , Figure 8 , Figure 9 and Figure 10, the pushing part includes a pushing cylinder 20 which is fixedly connected in the groove 5. The output end of the pushing cylinder 20 is fixedly connected with a connecting rod member 21. Symmetrically arranged first pushing blocks 23 are fixedly connected to the connecting rod member 21 through a first connecting rod 22. A first inclined surface 24 is arranged on the first pushing block 23. A first collar 25 is sleeved outside the first connecting block 8. A second clamping groove 26 which cooperates with the first collar 25 is arranged on the first connecting block 8. A second pushing block 28 is fixedly connected to the side surface of the first collar 25 through a second connecting rod 27. A second inclined surface 29 is arranged on the second pushing block 28. A clamping plate member 30 is fixedly connected to the first inclined surface 24. A third clamping groove 31 which cooperates with the clamping plate member 30 is formed on the second inclined surface 29. A third connecting rod 32 is fixedly connected to the side surface of the first support rod 9. A third support rod 33 is fixedly connected to the third connecting rod 32. A through groove 34 for the third support rod 33 to pass through is formed on the second connecting rod 27. A limiting plate 35 is fixedly connected to the end of the third support rod 33.

[0041] A second collar 37 is connected to the side surface of the first support rod 9 through a first spring 36 for providing elastic force. The first spring 36 is sleeved outside the first plug rod 10.

[0042] When the pushing cylinder 20 works, it pushes the connecting rod member 21 to move, driving the first pushing block 23 to move. The first inclined surface 24 on the first pushing block 23 interacts with the second inclined surface 29 on the second pushing block 28, causing the second pushing block 28 to drive the first collar 25 to move on the first connecting block 8, thereby realizing the adjustment of the distance between the two first clamping blocks 3 and making the first clamping blocks 3 no longer clamp the check valve body 2.

[0043] Meanwhile, the third connecting rod 32 is welded to the first support rod 9, and the third support rod 33 is welded to the third connecting rod 32. The size of the through groove 34 formed on the second connecting rod 27 is slightly larger than the diameter of the third support rod 33, ensuring that the second connecting rod 27 can slide on the third support rod 33. When the first pushing block 23 moves, through the interaction of the third inclined surface 46 and the fourth inclined surface 47 on the third pushing block 44 and the fourth pushing block 45, it drives the moving block 43 to move on the fourth connecting rod 38, thereby increasing the clamping force of the two second clamping blocks 4 on the check valve body 2.

[0044] A fourth connecting rod 38 is fixedly connected to the side surface of the third connecting rod 32. A second clamping plate 39 is fixedly connected to the end of the fourth connecting rod 38. A second connecting block 40 is fixedly connected to the side surface of the second clamping block 4. A fourth clamping groove 41 that cooperates with the second clamping plate 39 is formed in the second connecting block 40. The second clamping plate 39 is connected to the fourth clamping groove 41 through a second spring 42 for providing elastic force. A moving block 43 is sleeved on the outer side of the fourth connecting rod 38. A third pushing block 44 is fixedly connected to the moving block 43. A fourth pushing block 45 is fixedly connected to the first pushing block 23. A third inclined surface 46 is provided on the third pushing block 44. A fourth inclined surface 47 is provided on the fourth pushing block 45.

[0045] The fourth clamping groove 41 formed in the second connecting block 40 has a shape and size that match those of the second clamping plate 39. By inserting the second clamping plate 39 into the fourth clamping groove 41, the connection between the second connecting block 40 and the fourth connecting rod 38 is realized. The second clamping plate 39 is connected to the fourth clamping groove 41 through the second spring 42. The second spring 42 provides a certain elastic force, enabling the second clamping block 4 to adaptively adjust within a certain range and ensuring the clamping effect on the backstop main body 2. When the pushing part works, the movement of the moving block 43 drives the second clamping block 4 to move, realizing the adjustment of the clamping force on the backstop main body 2.

[0046] A fourth support rod 48 is fixedly connected to the base 1. A support plate member 49 for supporting the second rotating sleeve 16 is fixedly connected to the upper end of the fourth support rod 48. Support balls 50 distributed in a circumferential array are arranged inside the support plate member 49.

[0047] In summary, the working principle of the present invention is as follows: When using this assembly tooling, first place the backstop main body 2 on the placement plate 6, and adjust the height of the placement plate 6 through the lifting part 51 so that the backstop main body 2 is in a suitable assembly position. Then, start the pushing cylinder 20 to clamp and fix the backstop main body 2 with the first clamping block 3.

[0048] When it is necessary to reverse the backstop main body 2, start the pushing cylinder 20 again, adjust the distance between the two first clamping blocks 3 so that the first clamping blocks 3 no longer clamp the backstop main body 2, and at the same time increase the clamping force of the two second clamping blocks 4 on the backstop main body 2. Then, start the rotating motor 13, and drive the first clamping block 3 and the backstop main body 2 to rotate through the rotating unit to complete the reversing operation.

[0049] After the commutation is completed, the pushing cylinder 20 is started again to resume the clamping of the first clamping block 3 on the backstop body 2, and the second clamping block 4 is released to facilitate subsequent assembly work. During the whole working process, each component cooperates with each other, realizing efficient and convenient commutation operation during the backstop assembly process, and improving the assembly efficiency and quality.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An assembly tool for facilitating commutation in the production of a backstop, comprising a base (1), characterized in that, A check valve body (2) is placed on the base (1). First clamping blocks (3) are arranged on both sides of the check valve body (2). The first clamping blocks (3) are in contact with the side surface of the check valve body (2) to clamp it. Second clamping blocks (4) are arranged on both sides of the check valve body (2). The second clamping blocks (4) are in contact with the side surface of the check valve body (2) to clamp it. A pushing part is arranged on the base (1). The pushing part is used to adjust the distance between the two first clamping blocks (3) so that the first clamping blocks (3) no longer clamp the check valve body (2), and the pushing part is used to increase the clamping force of the two second clamping blocks (4) on the check valve body (2).

2. The assembly tooling for producing a check valve, which is convenient for commutation as described in claim 1, is characterized in that, A groove (5) is arranged on the base (1). A placement plate (6) is arranged in the groove (5). The lower end of the placement plate (6) is connected to the groove (5) through a lifting part (51). The placement plate (6) is used to place the check valve body (2).

3. The assembly tooling for a check valve production that is convenient for commutation as described in claim 2, wherein, A clamping curved surface (7) is arranged on the first clamping block (3).

4. The assembly tooling for facilitating commutation in the production of a check valve as described in claim 3, wherein A first connecting block (8) is fixedly connected to the side surface of the first clamping block (3). The first connecting block (8) is connected to the base (1) through a first connecting unit. A rotating unit for driving the first clamping block (3) to rotate is arranged on the base (1).

5. The assembly tooling for a check valve production that is convenient for commutation according to claim 4, characterized in that, The first connecting unit includes a first support rod (9) fixedly connected to the base (1). A first insertion rod (10) is fixedly connected to the side surface of the first support rod (9). A first clamping plate (11) is fixedly connected to the end of the first insertion rod (10). A first clamping groove (12) for cooperating with the first clamping plate (11) is arranged in the first connecting block (8).

6. The assembly tooling for a check valve production that is convenient for commutation as described in claim 4, characterized in that, The rotating unit includes a rotating motor (13). The rotating motor (13) is fixedly connected to the base (1) through a second support rod (14). A first rotating sleeve (15) is fixedly connected to the output end of the rotating motor (13). A second rotating sleeve (16) is sleeved on the outside of the first connecting block (8). A first gear tooth (17) is arranged on the first connecting block (8). A second gear tooth (18) meshing with the first gear tooth (17) is arranged on the inner side of the second rotating sleeve (16). A transmission belt (19) is cooperatively arranged on the outside of the first rotating sleeve (15) and the second rotating sleeve (16).

7. The assembly tooling for a backstop production that is convenient for commutation as described in claim 4, wherein The pushing part includes a pushing cylinder (20), the pushing cylinder (20) is fixedly connected in the groove (5), the output end of the pushing cylinder (20) is fixedly connected with a connecting rod member (21), symmetrically arranged first pushing blocks (23) are fixedly connected to the connecting rod member (21) through a first connecting rod (22), a first inclined surface (24) is arranged on the first pushing block (23), a first collar (25) is sleeved outside the first connecting block (8), a second clamping groove (26) for cooperating with the first collar (25) is arranged on the first connecting block (8), a second pushing block (28) is fixedly connected to the side surface of the first collar (25) through a second connecting rod (27), a second inclined surface (29) is arranged on the second pushing block (28), a clamping plate member (30) is fixedly connected to the first inclined surface (24), a third clamping groove (31) for cooperating with the clamping plate member (30) is arranged on the second inclined surface (29), a third connecting rod (32) is fixedly connected to the side surface of the first support rod (9), a third support rod (33) is fixedly connected to the third connecting rod (32), a through groove (34) for the third support rod (33) to pass through is arranged on the second connecting rod (27), and a limiting plate (35) is fixedly connected to the end of the third support rod (33).

8. The assembly tooling for facilitating commutation in the production of a check valve according to claim 7, characterized in that, A second collar (37) is connected to the side surface of the first support rod (9) through a first spring (36) for providing elastic force, and the first spring (36) is sleeved outside the first plug rod (10).

9. The assembly tooling for a check valve production that is convenient for commutation according to claim 7, characterized in that, A fourth connecting rod (38) is fixedly connected to the side surface of the third connecting rod (32), a second clamping plate (39) is fixedly connected to the end of the fourth connecting rod (38), a second connecting block (40) is fixedly connected to the side surface of the second clamping block (4), a fourth clamping groove (41) for cooperating with the second clamping plate (39) is arranged in the second connecting block (40), the second clamping plate (39) is connected to the fourth clamping groove (41) through a second spring (42) for providing elastic force, a moving block (43) is sleeved outside the fourth connecting rod (38), a third pushing block (44) is fixedly connected to the moving block (43), a fourth pushing block (45) is fixedly connected to the first pushing block (23), a third inclined surface (46) is arranged on the third pushing block (44), and a fourth inclined surface (47) is arranged on the fourth pushing block (45).

10. The assembly tooling for a check valve production that is convenient for commutation as described in claim 4, characterized in that, A fourth support rod (48) is fixedly connected to the base (1), a support plate member (49) for supporting the second rotating sleeve (16) is fixedly connected to the upper end of the fourth support rod (48), and support balls (50) distributed in a circumferential array are arranged inside the support plate member (49).

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