Lathe axial clamping hydraulic general tooling

Abstract

The present application relates to lathe axial clamping technical field, specifically to a lathe axial clamping hydraulic general tool, the general tool includes chuck shell body for supporting, chuck shell body's front end is fixedly installed with chuck plate, the inside of chuck shell body and the front end of chuck plate are provided with axial clamping mechanism, the front end of chuck plate is provided with positioning sleeve, the front end of positioning sleeve is provided with workpiece, the front end of chuck plate and positioning sleeve is provided with positioning installation mechanism, axial clamping mechanism further includes hydraulic clamping module and width adjusting module, hydraulic clamping module is used to fix workpiece on the front end of chuck plate, so that workpiece is axially machined, the present application is designed by hydraulic clamping module, is favorable in driving the front and back movement of pressing plate and fixes workpiece on the front end of chuck plate, is convenient for the axial machining of workpiece, and two groups of pressing plates can be moved, and it is convenient to adjust the distance between two groups of pressing plates with width adjusting module.

Description

Technical Field

[0001] This invention relates to the field of lathe axial clamping technology, and more particularly to a universal hydraulic tooling for lathe axial clamping. Background Technology

[0002] In the field of precision lathe machining, short shaft parts, with their diverse specifications and wide applications, have become an indispensable part of the machining industry. These parts, with their elegant cylindrical shape and tough steel material, showcase the charm of industrial manufacturing. However, behind their exquisite appearance lies a rigorous machining process, especially the drilling process, which determines whether the parts can achieve precise connection and stable assembly.

[0003] In lathe machining, a large number of parts can only be clamped axially. Short shaft parts are common in the machining industry, with diverse shapes and specifications. After turning, short shaft parts need to have various equal-divided joint holes or notches drilled on one or both ends of their circumference on a drilling machine. Furthermore, due to the varying thickness of the parts, conventional tooling fixtures often lack a unified fixture capable of clamping most parts, requiring constant fixture changes during machining, resulting in low machining efficiency.

[0004] To address the aforementioned technical issues, Chinese Patent Application No. CN201810283266.X discloses an axial clamping fixture for bearing housings. The fixture comprises a first pin hinged to the rear end of a pressure claw, with the middle of each pressure claw connected to the upper end of a linkage rod via a second pin. The lower ends of multiple linkage rods are collectively clamped onto a push-pull plate. The push-pull plate is connected to a driving element for the push-pull action, which in turn drives the push-pull plate to move up and down. A support seat is provided at the center of the fixed base, enabling axial clamping of the bearing housing and meeting the circumferential surface machining requirements of the bearing housing, thus facilitating machining.

[0005] This type of bearing housing axial clamping fixture, although capable of axial clamping, easily obstructs the outer perimeter of the workpiece, hindering other processing operations on the outer side of the workpiece, resulting in poor performance. Furthermore, it can only fix workpieces of a fixed length, limiting its applicability and making it inconvenient to use.

[0006] To address this, a universal hydraulic tooling for axial clamping of lathes is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a universal hydraulic tooling for axial clamping of lathes, so as to solve the problems of inconvenient axial clamping and poor adaptability mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a universal hydraulic tooling for axial clamping of a lathe, the universal tooling including a chuck housing body for support, a faceplate base plate fixedly installed at the front end of the chuck housing body, an axial clamping mechanism provided inside the chuck housing body and at the front end of the faceplate base plate, a positioning sleeve provided at the front end of the faceplate base plate, a workpiece provided at the front end of the positioning sleeve, a positioning mounting mechanism provided at the front end of the faceplate base plate and the positioning sleeve, the axial clamping mechanism further including a hydraulic clamping module and a width adjustment module, the hydraulic clamping module being used to fix the workpiece at the front end of the faceplate base plate so that the workpiece can be axially machined, and the width adjustment module being used to adjust the clamping width in conjunction with the hydraulic clamping module to adapt to workpieces with different outer diameters; The positioning and installation mechanism also includes a center positioning module and a combination installation module. The center positioning module is used to center the workpiece and pre-fix it to cooperate with the axial clamping mechanism for precise clamping. The combination installation module is used to quickly install and remove the positioning sleeve on the base plate of the flower plate, making it convenient to replace different types of positioning sleeves.

[0009] Preferably, the hydraulic clamping module includes a movable pull plate sleeved inside the chuck housing body, a hydraulic pull rod transition plate fixedly installed in the middle of the movable pull plate, a main pull rod fixedly installed at the rear end of the hydraulic pull rod transition plate, and two sets of symmetrical first pull rods fixedly installed at the front end of the movable pull plate. The other end of the first pull rod passes through the bottom plate of the chuck and is provided with a pressure plate and a locking nut. The pressure plate is limited by the locking nut on the first pull rod through a threaded connection.

[0010] Preferably, a pull rod guide sleeve is provided on the outer side of the first pull rod, and the pull rod guide sleeve is fitted into the bottom plate of the flower plate.

[0011] Preferably, the outer side of the first pull rod has two symmetrical sets of notches, and the front end of the pressure plate has a slide rail, through which the pressure plate slides left and right.

[0012] Preferably, the width adjustment module includes a second pull rod fixedly connected to the front end of the movable pull plate, a support base fixedly connected to the front end of the second pull rod, a bidirectional lead screw rotatably connected inside the support base, and two sets of symmetrical movable rods threadedly connected to the outer side of the bidirectional lead screw, the movable rods being fixedly connected to the pressure plate.

[0013] Preferably, a first knob is sleeved in the middle of the bidirectional lead screw, and the first knob is rotatably connected to the front end of the support base.

[0014] Preferably, the center positioning module includes a support cylinder fixedly connected to the front end of the positioning sleeve, a lead screw rotatably connected to the front end of the positioning sleeve, the other end of the lead screw passing through the support cylinder and fixedly connected to a second knob, a movable plate threadedly connected to the outer side of the lead screw, and a connecting rod hinged to the front end of the positioning sleeve and the rear end of the movable plate, the other end of the connecting rod being hinged to the inner side of the extrusion plate.

[0015] Preferably, at least three sets of extrusion plates are provided, and the three sets of extrusion plates are arranged in a circular and uniform manner.

[0016] Preferably, the combined installation module includes a clamping plate disposed at the rear end of the positioning sleeve. The clamping plate is clamped in the clamping plate groove at the front end of the flower plate base plate. Two sets of symmetrical limiting plates are slidably connected inside the clamping plate. One end of a clamping block is fixedly connected to the outside of the limiting plate. The other end of the clamping block passes through the clamping plate and is clamped in the clamping block groove opened in the inner wall of the clamping plate groove. Two sets of symmetrical return springs are fixedly connected between the two sets of limiting plates.

[0017] Preferably, a first rope is fixedly connected between the two sets of limiting plates, one end of a second rope is fixedly connected to the middle of the first rope, and the other end of the second rope passes through the lead screw and the second knob and is fixedly connected to the pull plate.

[0018] The beneficial effects of this invention are: 1. The present invention, by designing a hydraulic clamping module, facilitates the movement of the pressure plate back and forth to fix the workpiece at the front end of the faceplate base plate, which is convenient for axial processing of the workpiece. In addition, the two sets of pressure plates can be moved to facilitate the adjustment of the distance between the two sets of pressure plates in conjunction with the width adjustment module.

[0019] 2. This invention, by designing a width adjustment module in conjunction with a hydraulic clamping module, facilitates the synchronous adjustment of the distance between the two sets of pressure plates by rotating the first knob. This allows the pressure plates to be adapted to workpieces of different diameters. Furthermore, the second pull rod provides stable support for the first knob inside the support base, enabling the support base to move synchronously with the pressure plates without hindering the clamping effect of the pressure plates, thus greatly increasing the applicability.

[0020] 3. This invention, through the design of a center positioning module in conjunction with a hydraulic clamping module, facilitates the rotation of the second knob to drive the three sets of extrusion plates to press the inner wall of the workpiece, thereby enabling the workpiece to be pre-positioned in the center. This also facilitates the synchronous adjustment of the two sets of pressure plates by the hydraulic clamping module, greatly increasing the clamping speed of workpieces of different diameters.

[0021] 4. This invention, through the design and combination of the installation module and the center positioning module, facilitates the pulling of the pull plate to retract the locking block, allowing the locking plate to be inserted into the locking plate groove. The restoring force of the return spring can also allow the locking block to enter the locking block groove, enabling the positioning sleeve to be quickly installed on the front end of the flower plate base plate. This facilitates the quick replacement of different types of positioning sleeves to meet the needs of different processed parts. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional schematic diagram of a universal hydraulic tooling for axial clamping of a lathe according to an embodiment of the present invention; Figure 2 This invention provides a universal hydraulic tooling for axial clamping of a lathe. Figure 1 Schematic diagram of cross-section at point AA; Figure 3 This invention provides a universal hydraulic tooling for axial clamping of a lathe. Figure 2 Enlarged view of point B in the middle; Figure 4 This is a three-dimensional schematic diagram of the axial clamping mechanism of a universal hydraulic tooling for axial clamping on a lathe, according to an embodiment of the present invention. Figure 5 This is an exploded view of the axial clamping mechanism of a universal hydraulic tooling for axial clamping on a lathe, according to an embodiment of the present invention. Figure 6 This is a three-dimensional schematic diagram of the positioning and mounting mechanism of a universal hydraulic tooling for axial clamping of a lathe, according to an embodiment of the present invention. Figure 7 This is an exploded view of the positioning and installation mechanism of a universal hydraulic tooling for axial clamping on a lathe, according to an embodiment of the present invention. Figure 8 This invention provides a universal hydraulic tooling for axial clamping of a lathe. Figure 7 Enlarged diagram of point C in the middle.

[0024] The following components are marked in the diagram: 1. Chuck housing body; 2. Flower plate base; 3. Movable pull plate; 4. Hydraulic pull rod transition plate; 5. Main pull rod; 6. First pull rod; 7. Pull rod guide sleeve; 8. Pressure plate; 9. Locking nut; 10. Positioning sleeve; 11. Machined part; 12. Notch; 13. Slide rail; 14. Second pull rod; 15. Support base; 16. Two-way lead screw; 17. First knob; 18. Movable rod; 19. Support cylinder; 20. Lead screw; 21. Second knob; 22. Movable plate; 23. Connecting rod; 24. Extrusion plate; 25. Clamping plate; 26. Clamping plate groove; 27. Limiting plate; 28. Clamping block; 29. ​​Clamping block groove; 30. Return spring; 31. First rope; 32. Second rope; 33. Pull plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] Please see Figures 1 to 8 This invention provides a technical solution: a universal hydraulic tooling for axial clamping of a lathe. The universal tooling includes a chuck housing body 1 for support, a faceplate base plate 2 fixedly installed at the front end of the chuck housing body 1, an axial clamping mechanism provided inside the chuck housing body 1 and at the front end of the faceplate base plate 2, a positioning sleeve 10 provided at the front end of the faceplate base plate 2, a workpiece 11 provided at the front end of the positioning sleeve 10, and a positioning mounting mechanism provided at the front ends of the faceplate base plate 2 and the positioning sleeve 10. The axial clamping mechanism also includes a hydraulic clamping module and a width adjustment module. The hydraulic clamping module is used to fix the workpiece 11 at the front end of the faceplate base plate 2 so that the workpiece 11 can be axially machined. The width adjustment module is used to cooperate with the hydraulic clamping module to adjust the clamping width to adapt to workpieces 11 with different outer diameters. The positioning and installation mechanism also includes a center positioning module and a combination installation module. The center positioning module is used to center the workpiece 11, so that the workpiece 11 is pre-fixed to cooperate with the axial clamping mechanism for precise clamping. The combination installation module is used to quickly install and remove the positioning sleeve 10 on the flower plate base plate 2, so that different types of positioning sleeves 10 can be easily replaced.

[0028] As one embodiment of the present invention, such as Figure 2 and Figure 4 as well as Figure 5As shown, the hydraulic clamping module includes a movable pull plate 3 fitted inside the chuck housing body 1. A hydraulic pull rod transition plate 4 is fixedly installed in the middle of the movable pull plate 3. A main pull rod 5 is fixedly installed at the rear end of the hydraulic pull rod transition plate 4. Two sets of symmetrical first pull rods 6 are fixedly installed at the front end of the movable pull plate 3. The other end of the first pull rod 6 passes through the base plate 2 of the chuck and is provided with a pressure plate 8 and a locking nut 9. The pressure plate 8 is limited by the locking nut 9 threadedly connected to the first pull rod 6. A pull rod guide sleeve 7 is fitted on the outside of the first pull rod 6 and is fitted inside the base plate 2 of the chuck. Two sets of symmetrical notches 12 are opened on the outside of the first pull rod 6. A slide rail 13 is opened at the front end of the pressure plate 8. The pressure plate 8 slides left and right through the notches 12 and the slide rail 13. In use, external power drives the main pull rod 5 to move. The main pull rod 5 moves within the chuck housing 1 via the hydraulic pull rod transition plate 4, driving the movable pull plate 3. Since the first pull rod 6 is threaded with a locking nut 9, which restricts the forward and backward movement of the pressure plate 8, the movable pull plate 3, through the first pull rod 6, drives the pressure plate 8 to clamp the workpiece 11. Finally, because the outer side of the first pull rod 6 has a notch 12 and the front end of the pressure plate 8 has a slide rail 13, the pressure plate 8 can move left and right on the first pull rod 6, allowing the clamping distance between the pressure plates 8 to be adjusted. This facilitates the forward and backward movement of the pressure plates 8 to fix the workpiece 11 to the front end of the flower plate base plate 2, making axial machining of the workpiece 11 easier. Furthermore, the two sets of pressure plates 8 can move, facilitating the adjustment of the distance between them using the width adjustment module.

[0029] As one embodiment of the present invention, such as Figure 1 and Figure 2 as well as Figure 4As shown, the width adjustment module includes a second pull rod 14 fixedly connected to the front end of the movable pull plate 3. A support base 15 is fixedly connected to the front end of the second pull rod 14. A bidirectional lead screw 16 is rotatably connected inside the support base 15. Two sets of symmetrical movable rods 18 are threadedly connected to the outer side of the bidirectional lead screw 16. The movable rods 18 are fixedly connected to the pressure plate 8. A first knob 17 is sleeved in the middle of the bidirectional lead screw 16. The first knob 17 is rotatably connected to the front end of the support base 15. Rotating the first knob 17 drives the bidirectional lead screw 16 to rotate, causing the two sets of movable rods 18 to move towards or away from each other. Then, the movable rods 18 drive... The pressure plates 8 move towards or away from each other, bringing the two sets of pressure plates 8 closer or further apart. Finally, because the first knob 17 rotates on the support base 15, and the support base 15 is fixed to the movable pull plate 3 by the second pull rod 14, it provides stable support for the first knob 17. This facilitates the synchronous adjustment of the distance between the two sets of pressure plates 8 by rotating the first knob 17, making it easier for the pressure plates 8 to adapt to workpieces 11 of different diameters. Furthermore, the second pull rod 14 provides stable support for the first knob 17 inside the support base 15, allowing the support base 15 to move synchronously with the pressure plates 8 without hindering the clamping effect of the pressure plates 8, greatly increasing the applicability.

[0030] As one embodiment of the present invention, such as Figure 3 and Figure 7 as well as Figure 8 As shown, the center positioning module includes a support cylinder 19 fixedly connected to the front end of the positioning sleeve 10. A lead screw 20 is rotatably connected to the front end of the positioning sleeve 10. The other end of the lead screw 20 passes through the support cylinder 19 and is fixedly connected to a second knob 21. A movable plate 22 is threadedly connected to the outer side of the lead screw 20. One end of a connecting rod 23 is hinged to the front end of the positioning sleeve 10 and the rear end of the movable plate 22. The other end of the connecting rod 23 is hinged to the inner side of the extrusion plate 24. At least three sets of extrusion plates 24 are provided, and the three sets of extrusion plates 24 are evenly arranged in a circle. First, the workpiece 11 is placed on the support cylinder 19 at the front end of the positioning sleeve 10, and then the second knob is rotated. 21. The movable plate 22 drives the lead screw 20 inside the support cylinder 19 to rotate. Then, the lead screw 20 drives the movable plate 22 to slide on the support cylinder 19. Finally, the movable plate 22 drives the three sets of extrusion plates 24 to expand or contract outward through the connecting rod 23, so that the three sets of extrusion plates 24 press against the inner wall of the workpiece 11 for centering and pre-positioning. This makes it possible for the workpiece 11 to slide back and forth. It is also beneficial to rotate the second knob 21 to drive the three sets of extrusion plates 24 to press against the inner wall of the workpiece 11, so that the workpiece 11 is pre-positioned in the center. This facilitates the hydraulic clamping module to make synchronous adjustments to the two sets of pressure plates 8, and greatly increases the clamping speed of workpieces 11 with different diameters.

[0031] As one embodiment of the present invention, such as Figure 2 and Figure 6 as well as Figure 7As shown, the assembly module includes a locking plate 25 located at the rear end of the positioning sleeve 10. The locking plate 25 is engaged in the locking plate groove 26 at the front end of the flower plate base plate 2. Two sets of symmetrical limiting plates 27 are slidably connected inside the locking plate 25. One end of a locking block 28 is fixedly connected to the outer side of the limiting plate 27. The other end of the locking block 28 passes through the locking plate 25 and is engaged in the locking block groove 29 opened in the inner wall of the locking plate groove 26. Two sets of symmetrical return springs 30 are fixedly connected between the two sets of limiting plates 27. A first rope 31 is fixedly connected between the two sets of limiting plates 27. One end of a second rope 32 is fixedly connected to the middle of the first rope 31. The other end of the second rope 32 passes through the lead screw 20 and the second knob 21 and is fixedly connected to a pull plate 33. Pulling the pull plate... 33. Pull plate 33 drives the locking blocks 28 on the outside of the two sets of movable pull plates 38 into the interior of the locking plate 25 through the first rope 31 and the second rope 32. Then, the locking plate 25 at the rear end of the positioning sleeve 10 is locked into the locking plate groove 26 at the front end of the flower plate base plate 2. Finally, pull plate 33 is released. The restoring force of pull plate 33 drives the locking block 28 into the locking block groove 29 opened in the inner wall of the locking plate groove 26 through the limiting plate 27. This is conducive to pulling pull plate 33 to retract locking block 28, so that locking plate 25 is locked into locking plate groove 26. The restoring force of return spring 30 can make locking block 28 enter locking block groove 29, so that positioning sleeve 10 can be quickly installed on the front end of flower plate base plate 2. This facilitates quick replacement of different types of positioning sleeve 10 to meet the needs of different processed parts 11.

[0032] Working principle: During use, external power drives the main pull rod 5 to move. The main pull rod 5 drives the movable pull plate 3 to move within the chuck housing body 1 through the hydraulic pull rod transition plate 4. Then, because the first pull rod 6 is threaded with a locking nut 9, the locking nut 9 restricts the back-and-forth movement of the pressure plate 8. Therefore, the movable pull plate 3 drives the pressure plate 8 to clamp the workpiece 11 through the first pull rod 6. Finally, because the outer side of the first pull rod 6 has a notch 12 and the front end of the pressure plate 8 has a slide rail 13, the pressure plate 8 can move left and right on the first pull rod 6, so that the clamping distance between the pressure plates 8 can be adjusted. Rotating the first knob 17 causes the bidirectional lead screw 16 to rotate, causing the two sets of movable rods 18 to move towards or away from each other. Then, the movable rods 18 cause the pressure plates 8 to move towards or away from each other, causing the two sets of pressure plates 8 to move closer or further apart. Finally, because the first knob 17 rotates on the support base 15, the support base 15 is fixed to the movable pull plate 3 by the second pull rod 14, providing stable support for the first knob 17. First, the workpiece 11 is placed on the support cylinder 19 at the front end of the positioning sleeve 10. Then, the second knob 21 is turned, and the movable plate 22 drives the lead screw 20 inside the support cylinder 19 to rotate. Then, the lead screw 20 drives the movable plate 22 to slide on the support cylinder 19. Finally, the movable plate 22 drives the three sets of extrusion plates 24 to expand or contract outward through the connecting rod 23, so that the three sets of extrusion plates 24 are pressed against the inner wall of the workpiece 11 for centering and pre-positioning, so that the workpiece 11 can only slide back and forth. Pull the pull plate 33. The pull plate 33 drives the locking blocks 28 on the outside of the two sets of movable pull plates 38 to enter the interior of the locking plate 25 through the first rope 31 and the second rope 32. Then, the locking plate 25 at the rear end of the positioning sleeve 10 is locked into the locking plate groove 26 at the front end of the flower plate base plate 2. Finally, release the pull plate 33. The restoring force of the pull plate 33 drives the locking blocks 28 into the locking block groove 29 opened on the inner wall of the locking plate groove 26 through the limiting plate 27.

[0033] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0034] This invention is intended to cover all such substitutions, modifications, and alterations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A universal hydraulic tooling for axial clamping of a lathe, the universal tooling comprising a chuck housing body (1) for support, a faceplate base plate (2) fixedly mounted on the front end of the chuck housing body (1), an axial clamping mechanism provided inside the chuck housing body (1) and at the front end of the faceplate base plate (2), a positioning sleeve (10) provided at the front end of the faceplate base plate (2), a machining part (11) provided at the front end of the positioning sleeve (10), and a positioning mounting mechanism provided at the front end of the faceplate base plate (2) and the positioning sleeve (10), characterized in that: The axial clamping mechanism also includes a hydraulic clamping module and a width adjustment module. The hydraulic clamping module is used to fix the workpiece (11) to the front end of the flower plate base plate (2) so that the workpiece (11) can be axially processed. The width adjustment module is used to adjust the clamping width in conjunction with the hydraulic clamping module to adapt to workpieces (11) with different outer diameters. The positioning and installation mechanism also includes a center positioning module and a combination installation module. The center positioning module is used to center position the workpiece (11) so that the workpiece (11) is pre-fixed to cooperate with the axial clamping mechanism for precise clamping. The combination installation module is used to quickly install and remove the positioning sleeve (10) on the flower plate base plate (2) so that different types of positioning sleeves (10) can be easily replaced. The hydraulic clamping module includes a movable pull plate (3) fitted inside the chuck housing body (1). A hydraulic pull rod transition plate (4) is fixedly installed in the middle of the movable pull plate (3). A main pull rod (5) is fixedly installed at the rear end of the hydraulic pull rod transition plate (4). Two sets of symmetrical first pull rods (6) are fixedly installed at the front end of the movable pull plate (3). The other end of the first pull rod (6) passes through the flower plate base plate (2) and is provided with a pressure plate (8) and a locking nut (9). The pressure plate (8) is limited by the locking nut (9) threadedly connected to the first pull rod (6). A pull rod guide sleeve (7) is sleeved on the outer side of the first pull rod (6), and the pull rod guide sleeve (7) is sleeved inside the flower plate bottom plate (2); The first pull rod (6) has two symmetrical notches (12) on its outer side, and the front end of the pressure plate (8) has a slide rail (13). The pressure plate (8) slides left and right through the notches (12) and the slide rail (13). The width adjustment module includes a second pull rod (14) fixedly connected to the front end of the movable pull plate (3). The front end of the second pull rod (14) is fixedly connected to a support base (15). The support base (15) is rotatably connected to a two-way screw rod (16). The outer side of the two-way screw rod (16) is threadedly connected to two sets of symmetrical movable rods (18). The movable rods (18) are fixedly connected to the pressure plate (8). The combined installation module includes a clamping plate (25) set at the rear end of the positioning sleeve (10). The clamping plate (25) is clamped in the clamping plate groove (26) at the front end of the flower plate base plate (2). Two sets of symmetrical limiting plates (27) are slidably connected inside the clamping plate (25). One end of the clamping block (28) is fixedly connected to the outside of the limiting plate (27). The other end of the clamping block (28) passes through the clamping plate (25) and is clamped in the clamping block groove (29) opened in the inner wall of the clamping plate groove (26). Two sets of symmetrical return springs (30) are fixedly connected between the two sets of limiting plates (27).

2. The universal hydraulic tooling for axial clamping of a lathe according to claim 1, characterized in that, The first knob (17) is sleeved in the middle of the bidirectional lead screw (16), and the first knob (17) is rotatably connected to the front end of the support base (15).

3. The universal hydraulic tooling for axial clamping of a lathe according to claim 1, characterized in that, The central positioning module includes a support cylinder (19) fixedly connected to the front end of the positioning sleeve (10). A lead screw (20) is rotatably connected to the front end of the positioning sleeve (10). The other end of the lead screw (20) passes through the support cylinder (19) and is fixedly connected to a second knob (21). A movable plate (22) is threadedly connected to the outer side of the lead screw (20). One end of a connecting rod (23) is hinged to the front end of the positioning sleeve (10) and the rear end of the movable plate (22). The other end of the connecting rod (23) is hinged to the inner side of the extrusion plate (24).

4. The universal hydraulic tooling for axial clamping of a lathe according to claim 3, characterized in that, The extrusion plate (24) is provided in at least three sets, and the three sets of extrusion plates (24) are arranged in a circular and uniform manner.

5. A universal hydraulic tooling for axial clamping of a lathe according to claim 1, characterized in that, A first rope (31) is fixedly connected between the two sets of limiting plates (27). One end of a second rope (32) is fixedly connected to the middle of the first rope (31). The other end of the second rope (32) passes through the lead screw (20) and the second knob (21) and is fixedly connected to the pull plate (33).

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