Clamping mechanism for shaft parts

Abstract

The utility model provides a clamping mechanism for shaft parts, which relates to the field of clamping mechanisms for shaft parts and comprises a workbench, a rotary table base plate, a placement adjusting support and a tailstock base plate are sequentially mounted at the top of the workbench from right to left, and a four-axis numerical control rotary table is mounted at the top of the rotary table base plate. A rotary disc is installed on one side of the four-axis numerical control rotary table, and a hydraulic tailstock is installed on the top of the tailstock base plate. Through the cooperation of the clamp tip, the tailstock base plate, the hydraulic tailstock tip, the hydraulic tailstock, the electromagnetic directional valve, the oil cylinder connecting base and the hydraulic oil cylinder, the shaft part clamping and fixing effect can be improved, the hydraulic oil cylinder is adopted for clamping, the effects that the force is large, and the part cannot run are achieved, and therefore the clamping stability can be improved, and the machining efficiency is improved. And through the four-axis numerical control rotary table, the rotary disc and the center sleeve, the effect that the shaft part can be driven to do rotary motion is achieved, and therefore the surface of the shaft part can be machined in all directions.

Description

Technical Field

[0001] This utility model belongs to the field of clamping mechanisms for shaft parts, specifically a clamping mechanism for shaft parts. Background Technology

[0002] Clamping mechanisms, also known as fixtures, are devices used in mechanical manufacturing to fix workpieces in the correct position for construction or inspection. They are also called clamps. In a broader sense, any device used to quickly, conveniently, and safely install workpieces in any step of the process can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc.

[0003] Currently, fixtures are widely used in many fields such as medical, automotive, and aerospace for shaft-type mechanical parts. However, when machining shaft-type parts, the outer surface of the shaft-type parts is relatively smooth, and they are easy to fall off when directly clamped by the clamping device. In addition, different fixtures are usually required to hold the rotating body neck for different shaft-type parts. Constantly changing fixtures will affect the machining time of the operator, and adding extra workers will increase costs, thus bringing inconvenience to the machining of shaft-type parts.

[0004] In summary, this utility model provides a clamping mechanism for shaft-type parts to solve the above-mentioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A clamping mechanism for shaft-type parts includes a worktable. From right to left, a turntable pad, a placement adjustment bracket, and a tailstock pad are sequentially mounted on the top of the worktable. A four-axis CNC turntable is mounted on the top of the turntable pad. A rotary disk is mounted on one side of the four-axis CNC turntable. A hydraulic tailstock is mounted on the top of the tailstock pad. An electromagnetic directional valve is mounted on the surface of the hydraulic tailstock. A hydraulic tailstock tip is mounted on one side of the hydraulic tailstock. A cylinder connecting seat is mounted on the other side of the hydraulic tailstock. A hydraulic cylinder is mounted on the side of the cylinder connecting seat away from the electromagnetic directional valve. A shaft is mounted on the end of the hydraulic tailstock tip away from the hydraulic tailstock. A placement adjuster is mounted at the bottom of the shaft, and the placement adjuster is connected to the placement adjustment bracket via a thread.

[0007] Furthermore, in this invention, a center sleeve is installed on the surface of the rotating disk, and a clamping center is installed in the inner cavity of the center sleeve. The end of the clamping center away from the center sleeve is in contact with the shaft.

[0008] Furthermore, in this utility model, a positioning pin fixing sleeve is installed on one side of the center sleeve, a T-nut is bolted to one side of the positioning pin fixing sleeve, and a positioning block is installed on one side of the T-nut. The T-nut and the positioning block are used to fix the center of the clamp.

[0009] Furthermore, in this utility model, the surface of the clamp tip is provided with a slot, and a positioning round bar is installed in the inner cavity of the slot. The output shaft of the four-axis CNC rotary table is connected to the rotary disk for transmission.

[0010] Furthermore, in this utility model, the output end of the hydraulic cylinder passes through the hydraulic tailstock and the cylinder connecting seat and is fixedly connected to the top of the hydraulic tailstock. One end of the shaft is provided with a slot, and the positioning round bar extends into the inner cavity of the slot and engages with the inner cavity of the slot.

[0011] Furthermore, in this utility model, the four-axis CNC turntable and the turntable pad are connected by bolts, the hydraulic tailstock and the tailstock pad are connected by bolts, and the turntable pad, the placement adjustment bracket and the tailstock pad are all threadedly connected to the worktable by bolts.

[0012] Furthermore, in this invention, the rotary disc and the center sleeve are connected by bolts, and the locating pin fixing sleeve and the T-nut are connected by bolts.

[0013] Beneficial effects: This utility model has the following beneficial effects:

[0014] This invention improves the clamping and fixing effect of shaft parts through the cooperation of a clamping center, tailstock pad, hydraulic tailstock center, hydraulic tailstock, electromagnetic reversing valve, cylinder connecting seat, and hydraulic cylinder. The use of hydraulic cylinder clamping provides strong force and prevents parts from moving, thereby improving clamping stability. The four-axis CNC rotary table, rotary disk, and center sleeve enable the shaft parts to rotate, allowing for all-round surface processing. The position of the clamping center can be adjusted using T-nuts and positioning blocks, facilitating the adjustment of the clamping position of the shaft parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the top sleeve of this utility model;

[0017] Figure 3 This is a schematic diagram of the connection structure between the four-axis CNC rotary table, the rotary disk, and the center sleeve of this utility model.

[0018] In the picture:

[0019] 1. Worktable; 2. Turntable pad; 3. Four-axis CNC turntable; 4. Rotary disc; 5. Center sleeve; 6. Positioning pin fixing sleeve; 7. T-nut; 8. Positioning block; 9. Fixture center; 10. Positioning round bar; 11. Placement adjustment bracket; 12. Placement adjuster; 13. Tailstock pad; 14. Hydraulic tailstock center; 15. Hydraulic tailstock; 16. Solenoid directional valve; 17. Cylinder connecting seat; 18. Hydraulic cylinder; 19. Shaft. Detailed Implementation

[0020] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0021] Example 1

[0022] like Figure 1-3 As shown, this is the first embodiment of the present invention. This embodiment provides a clamping mechanism for shaft parts, including a worktable 1. From right to left, a turntable pad 2, a placement adjustment bracket 11, and a tailstock pad 13 are installed on the top of the worktable 1. A four-axis CNC turntable 3 is installed on the top of the turntable pad 2. A rotary disk 4 is installed on one side of the four-axis CNC turntable 3. A hydraulic tailstock 15 is installed on the top of the tailstock pad 13. An electromagnetic reversing valve 16 is installed on the surface of the hydraulic tailstock 15. A hydraulic tailstock tip 14 is installed on one side of the hydraulic tailstock 15. A cylinder connecting seat 17 is installed on the other side of the hydraulic tailstock 15. A hydraulic cylinder 18 is installed on the side of the cylinder connecting seat 17 away from the electromagnetic reversing valve 16. A shaft 19 is installed at the end of the hydraulic tailstock tip 14 away from the hydraulic tailstock 15. A placement adjuster 12 is installed at the bottom of the middle of the shaft 19. The placement adjuster 12 is connected to the placement adjustment bracket 11 by threads.

[0023] like Figure 1-3As shown, the shaft 19 is supported by the cooperation of the placement adjustment bracket 11 and the placement adjuster 12. The placement adjuster 12 and the placement adjustment bracket 11 are connected by a thread, which can easily adjust the height. One end of the shaft 19 contacts the clamping tip 9. The positioning bar 10 extends into the groove on the surface of the shaft 19. The output end of the hydraulic cylinder 18 extends and pushes the hydraulic tailstock tip 14 to contact the other end of the shaft 19. With the cooperation of the clamping tip 9 and the hydraulic tailstock tip 14, the shaft 19 can be clamped and fixed. By using the hydraulic cylinder 18 for clamping, there is a large force and the parts will not move, which can improve the stability of clamping. The four-axis CNC rotary table 3 drives the rotary disk 4 to rotate. The rotary disk 4 drives the clamping tip 9 to rotate through the tip sleeve 5. The clamping tip 9 and the positioning bar 10 cooperate to drive the shaft 19 to rotate, which can facilitate the processing of different positions of the shaft 19 and effectively improve the flexibility of use.

[0024] Example 2

[0025] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0026] In this embodiment, a center sleeve 5 is installed on the surface of the rotary disk 4, and a clamping center 9 is installed in the inner cavity of the center sleeve 5. The end of the clamping center 9 away from the center sleeve 5 is in contact with the shaft 19.

[0027] A positioning pin fixing sleeve 6 is installed on one side of the center sleeve 5. A T-nut 7 is bolted to one side of the positioning pin fixing sleeve 6. A positioning block 8 is installed on one side of the T-nut 7. The T-nut 7 and the positioning block 8 are used to fix the center of the clamp 9.

[0028] The surface of the fixture tip 9 has a slot, and a positioning round bar 10 is installed in the inner cavity of the slot. The output shaft of the four-axis CNC rotary table 3 is connected to the rotary disk 4 for transmission.

[0029] The output end of the hydraulic cylinder 18 passes through the hydraulic tailstock 15 and the cylinder connecting seat 17 and is fixedly connected to the hydraulic tailstock tip 14. One end of the shaft 19 is provided with a slot, and the positioning round bar 10 extends into the inner cavity of the slot and engages with the inner cavity of the slot.

[0030] The four-axis CNC rotary table 3 and the rotary table pad 2 are connected by bolts. The hydraulic tailstock 15 and the tailstock pad 13 are connected by bolts. The rotary table pad 2, the placement adjustment bracket 11 and the tailstock pad 13 are all threadedly connected to the worktable 1 by bolts.

[0031] The rotary disc 4 and the center sleeve 5 are connected by bolts, and the locating pin fixing sleeve 6 and the T-nut 7 are connected by bolts.

[0032] like Figure 1-3As shown, the T-nut 7 and positioning block 8 not only fix the clamping tip 9, but also make it easy to adjust the position of the clamping tip 9, making the clamping more secure. The bolt connection makes it easy to disassemble and maintain, effectively improving the flexibility of use. The four-axis CNC turntable 3, rotary disk 4 and tip sleeve 5 can drive the shaft parts to rotate, thereby enabling all-round processing of the surface of the shaft parts. The tailstock pad 13 and the placement adjustment bracket 11 can also be connected by a guide rail, which can facilitate the adjustment of the position of the tailstock pad 13.

[0033] In use, the placement adjustment bracket 11 and the placement adjuster 12 provide support for the shaft 19. The placement adjuster 12 and the placement adjustment bracket 11 are connected by a thread, which allows for easy adjustment of the working height. One end of the shaft 19 contacts the clamping tip 9, and the positioning round bar 10 extends into the groove on the surface of the shaft 19. The output end of the hydraulic cylinder 18 extends and pushes the hydraulic tailstock tip 14 to contact the other end of the shaft 19. With the cooperation of the clamping tip 9 and the hydraulic tailstock tip 14, the shaft 19 can be clamped and fixed. The clamping by the hydraulic cylinder 18 has a strong force and the part will not move, thereby improving the stability of the clamping. The four-axis CNC rotary table 3 drives the rotary disk 4 to rotate. The rotary disk 4 drives the clamping tip 9 to rotate through the tip sleeve 5. The clamping tip 9 and the positioning round bar 10 cooperate to drive the shaft 19 to rotate, which allows for convenient processing of different positions of the shaft 19 and effectively improves the flexibility of use.

[0034] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0035] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A chucking mechanism for shaft-like parts, comprising a worktable (1), characterized in that: The top of the workbench (1) is sequentially provided with a rotary table base plate (2), a placing adjusting support (11) and a tailstock base plate (13) from right to left, the top of the rotary table base plate (2) is provided with a four-axis numerical control rotary table (3), one side of the four-axis numerical control rotary table (3) is provided with a rotary disc (4), the top of the tailstock base plate (13) is provided with a hydraulic tailstock (15), the surface of the hydraulic tailstock (15) is provided with an electromagnetic reversing valve (16), one side of the hydraulic tailstock (15) is provided with a hydraulic tailstock center (14), the other side of the hydraulic tailstock (15) is provided with an oil cylinder connecting seat (17), the side, away from the electromagnetic reversing valve (16), of the oil cylinder connecting seat (17) is provided with a hydraulic oil cylinder (18), one end, away from the hydraulic tailstock (15), of the hydraulic tailstock center (14) is provided with a shaft (19), the bottom of the middle of the shaft (19) is provided with a placing adjuster (12), and the placing adjuster (12) is connected with the placing adjusting support (11) through threads.

2. The chucking mechanism for shaft parts as set forth in claim 1, wherein: The surface of the rotary disc (4) is provided with a center sleeve (5), the inner cavity of the center sleeve (5) is provided with a clamp center (9), and one end, away from the center sleeve (5), of the clamp center (9) is in contact with the shaft (19).

3. The chucking mechanism for shaft parts as set forth in claim 2, wherein: One side of the center sleeve (5) is provided with a positioning pin fixing sleeve (6), the side, of the positioning pin fixing sleeve (6), away from the center sleeve (5) is connected with a T-shaped nut (7) through bolts, one side of the T-shaped nut (7) is provided with a positioning block (8), and the T-shaped nut (7) and the positioning block (8) are used for fixing the clamp center (9).

4. The chucking mechanism for shaft parts as set forth in claim 3, wherein: The surface of the clamp center (9) is provided with a slot, and the inner cavity of the slot is provided with a positioning round bar (10), and the output shaft of the four-axis numerical control rotary table (3) is in transmission connection with the rotary disc (4).

5. The chucking mechanism for shaft parts as set forth in claim 4, wherein: The output end of the hydraulic oil cylinder (18) penetrates through the hydraulic tailstock (15) and the oil cylinder connecting seat (17) and is fixedly connected with the hydraulic tailstock center (14), one end of the shaft (19) is provided with a notch, the positioning round bar (10) extends into the inner cavity of the notch and is clamped with the inner cavity of the notch.

6. The chucking mechanism for shaft parts as set forth in claim 1, wherein: The four-axis numerical control rotary table (3) is connected with the rotary table base plate (2) through bolts, the hydraulic tailstock (15) is connected with the tailstock base plate (13) through bolts, and the rotary table base plate (2), the placing adjusting support (11) and the tailstock base plate (13) are all connected with the workbench (1) through threads.

7. The chucking mechanism for shaft parts as set forth in claim 3, wherein: The rotary disc (4) and the center sleeve (5) are connected through bolts, and the positioning pin fixing sleeve (6) and the T-shaped nut (7) are connected through bolts.

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