Boring machining clamp for hydraulic cylinder body

Abstract

The boring clamp for the hydraulic cylinder body comprises a base table, a self-adaptive clamping mechanism and a movable chip prevention mechanism, the self-adaptive clamping mechanism comprises a clamping sleeve, a pneumatic actuator, a clamping rod, a contact block and a bottom fixing mechanism, and the bottom fixing mechanism comprises a spring, a fixing disc, a positioning rod and a clamping block. The movable chip-preventing mechanism comprises a driving motor, a lead screw, a sliding base, a chip-preventing plate and a fixing plate, under the mutual cooperation of all the mechanisms, the device can rapidly and automatically clamp and loosen a workpiece, the machining efficiency is improved, uniform clamping force is provided, the risk of workpiece deformation is reduced accordingly, the device can adapt to hydraulic cylinder bodies with different lengths, and the working efficiency is improved. Meanwhile, precise positioning and moving are achieved, high precision of the boring position is ensured, cuttings can be effectively prevented from entering a machining area, abrasion of the cuttings to a clamp and a machine tool is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder processing, in particular to a boring fixture for a hydraulic cylinder block. Background Art

[0002] In the prior art, when machining the inner hole of a hydraulic cylinder, it is generally manually clamped. Due to the problem of uneven clamping force in manual clamping, workpiece deformation may occur; and during the machining process, the workpiece needs to be moved, and the manual movement accuracy is low, affecting the machining quality; in addition, during the movement of the workpiece, chips are likely to accumulate in the machining area or fall into the internal chute of the machine, resulting in difficult movement of the workpiece and damage to the machine. Content of the Utility Model

[0003] The purpose of the utility model is to provide a boring fixture for a hydraulic cylinder block aiming at the above deficiencies existing in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A boring fixture for a hydraulic cylinder block, including a base, an adaptive clamping mechanism and a moving chip-proof mechanism. The adaptive clamping mechanism includes a clamping sleeve, a pneumatic actuator, a clamping rod, a contact block and a bottom fixing mechanism. The clamping sleeve is slidably connected to the base. The pneumatic actuators are fixedly installed on the clamping sleeve and are circumferentially distributed. The clamping rods are installed on the pneumatic actuators and pass through the clamping sleeve. The contact blocks are fixedly installed on the clamping rods. The bottom fixing mechanism includes a spring, a fixing plate, a positioning rod and a clamping block. The two ends of the spring are respectively fixedly connected to the fixing plate and the clamping sleeve. The fixing plate is in the axial center position relative to the clamping sleeve. The positioning rod is installed inside the fixing plate and is movably connected to the clamping sleeve. The clamping block is fixedly arranged on the positioning rod.

[0005] Preferably, the moving chip-proof mechanism includes a driving motor, a lead screw, a sliding base, a chip-proof plate and a fixing plate. The driving motor is fixedly installed on the base. One end of the lead screw is fixedly connected to the output end of the driving motor. The sliding base is installed on the base and is slidably connected to the base. The chip-proof plate and the fixing plate are fixedly connected to the sliding base.

[0006] More preferably, an insertion groove is arranged inside the clamping sleeve. An outward hole is arranged on the insertion groove. The positioning rod slides inside the insertion groove. The clamping block passes through the outward hole, which is convenient for rotating the positioning rod to fix the position of the fixing plate.

[0007] More preferably, a moving chute and a chip-proof chute are arranged on the base. The sliding base slides inside the moving chute. The chip-proof plate slides inside the chip-proof chute, which is convenient for the normal operation of the moving chip-proof mechanism.

[0008] Further preferably, a vertical plate is provided on the base, and the other end of the lead screw rotates inside the vertical plate, facilitating the operation of the lead screw, thereby making the movement of the sliding base more stable.

[0009] Further preferably, the clamping sleeve is fixedly installed on the sliding base, and a supporting plate is provided on the sliding base. The clamping sleeve is fixedly installed on the supporting plate, facilitating the movement of the clamping sleeve.

[0010] Further preferably, a rotating groove is provided inside the fixed disk, and a connecting disk is provided at one end of the positioning rod. The connecting disk rotates inside the rotating groove, facilitating the adjustment of the direction of the clamping block.

[0011] Further preferably, the contact block is made of rubber, facilitating the change of its own shape, so as to adapt to clamping cylinders of various shapes.

[0012] Compared with the prior art, the utility model has the following beneficial effects: 1) An adaptive clamping mechanism is provided in the utility model. With the mutual cooperation of components such as the clamping sleeve, pneumatic actuator, clamping rod, and contact block, it can quickly and automatically clamp and release the workpiece, and can provide a uniform clamping force, reducing the risk of workpiece deformation.

[0013] 2) A bottom fixing mechanism is provided in the utility model. Under the mutual action of components such as the spring, fixed disk, positioning rod, and clamping block, it can adapt to hydraulic cylinder bodies of different lengths, avoid frequent replacement of fixtures, and improve processing efficiency.

[0014] 3) A moving chip-proof mechanism is provided in the utility model. It can achieve precise positioning and movement, ensure high precision of the boring position, and can effectively prevent chips from entering the processing area, reduce the wear of chips on the fixture and the machine tool, and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of an overall structure in the utility model;

[0016] Figure 2 is a schematic diagram of the adaptive clamping mechanism in the utility model;

[0017] Figure 3 is an exploded view of the adaptive clamping mechanism in the utility model;

[0018] Figure 4 is an exploded view of the moving chip-proof mechanism in the utility model;

[0019] Figure 5 is Figure 4 a partial view of A in

[0020] In the figure: 1. Base; 2. Clamping sleeve; 3. Pneumatic actuator; 4. Clamping rod; 5. Contact block; 6. Spring; 7. Fixed disk; 8. Positioning rod; 9. Clamping block; 10. Driving motor; 11. Lead screw; 12. Sliding base; 13. Chip guard; 14. Fixed plate; 15. Insertion slot; 16. Outgoing hole; 17. Moving chute; 18. Chip guard chute; 19. Vertical plate; 20. Support plate; 21. Rotating slot; 22. Connecting disk. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0022] Please refer to Figures 1-5 , a boring fixture for a hydraulic cylinder block, including a base 1, an adaptive clamping mechanism, and a moving chip guard mechanism. The adaptive clamping mechanism includes a clamping sleeve 2, a pneumatic actuator 3, a clamping rod 4, a contact block 5, and a bottom fixing mechanism. The clamping sleeve 2 is slidably connected to the base 1. The pneumatic actuator 3 is fixedly installed on the clamping sleeve 2 and is circumferentially distributed. The clamping rod 4 is installed on the pneumatic actuator 3 and passes through the clamping sleeve 2. The contact block 5 is fixedly installed on the clamping rod 4. The bottom fixing mechanism includes a spring 6, a fixed disk 7, a positioning rod 8, and a clamping block 9. The two ends of the spring 6 are respectively fixedly connected to the fixed disk 7 and the clamping sleeve 2. The fixed disk 7 is in the axial center position relative to the clamping sleeve 2. The positioning rod 8 is installed inside the fixed disk 7 and is movably connected to the clamping sleeve 2. The clamping block 9 is fixedly arranged on the positioning rod 8.

[0023] In this embodiment, the adaptive clamping mechanism includes a clamping sleeve 2, a pneumatic actuator 3, a clamping rod 4, a contact block 5 and a bottom fixing mechanism. The bottom fixing mechanism includes a spring 6, a fixing disk 7, a positioning rod 8 and a clamping block 9. When in use, the hydraulic cylinder is placed inside the clamping sleeve 2. If it is in a long strip shape, the bottom of the hydraulic cylinder is directly in contact with the fixing disk 7, and then the hydraulic cylinder is pushed. The spring 6 is stretched, and the positioning rod 8 slides out of the insertion slot 15 on the supporting plate 20, and the clamping block 9 on the positioning rod 8 also walks out of the insertion slot 15 along with the outlet hole 16. When the position of the hydraulic cylinder body is placed appropriately, at this time, the positioning rod 8 is rotated. The connecting disk 22 on the positioning rod 8 rotates in the rotation slot 21 inside the fixing disk 7, and the position of the clamping block 9 is no longer aligned with the insertion hole. The clamping block 9 is in close contact with the clamping sleeve 2, and under the stretched spring 6, the fixing disk 7 is always subjected to a force towards the clamping sleeve 2, enabling the fixing disk 7 to be stably fixed at a certain distance from the clamping sleeve 2. When the length of the hydraulic cylinder placed is appropriate, at this time, the pneumatic actuator 3 is actuated, and the clamping rod 4 extends slowly towards the inside of the clamping sleeve 2 under the action of the pneumatic actuator 3. When the contact block 5 contacts the hydraulic cylinder, due to the nature of its rubber, it will change with the shape of the hydraulic cylinder. As the clamping rod 4 extends continuously, the contact block 5 fits closely with the hydraulic cylinder, thereby fixing the hydraulic cylinder.

[0024] In this embodiment, the movable chip-proof mechanism includes a driving motor 10, a lead screw 11, a sliding base 12, a chip-proof plate 13 and a fixing plate 14. When in use, after the hydraulic cylinder is fixed inside the clamping sleeve 2, at this time, boring needs to be performed on the hydraulic cylinder, and the position of the hydraulic cylinder also needs to be changed. At this time, the driving motor 10 is started to drive the lead screw 11 to rotate inside the vertical plate 19. The rotating lead screw 11 causes the sliding base 12 to slide on the base 1, thereby changing the position of the clamping sleeve 2 installed on the supporting plate 20 of the sliding base 12. During the movement of the sliding base 12, the chip-proof plate 13 and the fixing plate 14 on the sliding base 12 slide in the chip-proof sliding groove 18 and the moving sliding groove 17 on the base 1 respectively, so that the iron chips generated during boring do not fall into the chip-proof sliding groove 18 and the moving sliding groove 17, thereby affecting the movement of the sliding base 12. Embodiment 2

[0025] During use, place the hydraulic cylinder inside the clamping sleeve 2. If it is in a long strip shape, directly contact the bottom of the hydraulic cylinder with the fixed disk 7, and then push the hydraulic cylinder. The spring 6 is stretched, and the positioning rod 8 slides out of the insertion slot 15 on the supporting plate 20. The clamping block 9 on the positioning rod 8 also walks out of the insertion slot 15 along with the outlet hole 16. When the position of the hydraulic cylinder body is properly placed, rotate the positioning rod 8 at this time. The connecting disk 22 on the positioning rod 8 rotates in the rotating slot 21 inside the fixed disk 7, and the position of the clamping block 9 is no longer aligned with the insertion hole. The clamping block 9 is in close contact with the clamping sleeve 2, and under the stretched spring 6, the fixed disk 7 is always subjected to a force towards the clamping sleeve 2, enabling the fixed disk 7 to be stably fixed at a certain distance from the clamping sleeve 2. When the length of the hydraulic cylinder placed is appropriate, activate the pneumatic actuator 3 at this time. Under the action of the pneumatic actuator 3, the clamping rod 4 slowly extends into the clamping sleeve 2. When the contact block 5 contacts the hydraulic cylinder, due to the nature of its rubber, it will change with the shape of the hydraulic cylinder. As the clamping rod 4 continues to extend, the contact block 5 fits tightly with the hydraulic cylinder, thereby fixing the hydraulic cylinder. When the hydraulic cylinder has been fixed inside the clamping sleeve 2, it is necessary to bore the hydraulic cylinder at this time, and the position of the hydraulic cylinder also needs to be changed. At this time, start the driving motor 10 to drive the lead screw 11 to rotate inside the vertical plate 19. The rotating lead screw 11 causes the sliding base 12 to slide on the base 1, thereby changing the position of the clamping sleeve 2 installed on the supporting plate 20 of the sliding base 12. During the movement of the sliding base 12, the chip guard plate 13 and the fixing plate 14 on the sliding base 12 slide in the chip guard chute 18 and the moving chute 17 on the base 1 respectively, so that the iron chips generated during boring will not fall into the chip guard chute 18 and the moving chute 17, thus affecting the movement of the sliding base 12.

[0026] In all the solutions mentioned above, for the connection between two components, welding, the cooperation of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boring processing fixture for a hydraulic cylinder body, comprising a base (1), an adaptive clamping mechanism and a mobile chip prevention mechanism, characterized in that: The adaptive clamping mechanism comprises a clamping sleeve (2), a pneumatic actuator (3), a clamping rod (4), a contact block (5) and a bottom fixing mechanism, wherein the clamping sleeve (2) is slidably connected to the base (1), the pneumatic actuator (3) is fixedly mounted on the clamping sleeve (2) and is distributed in a circumferential manner, the clamping rod (4) is mounted on the pneumatic actuator (3) and passes through the clamping sleeve (2), the contact block (5) is fixedly mounted on the clamping rod (4), and the bottom fixing mechanism comprises a spring (6), a fixing plate (7), a positioning rod (8) and a clamping block (9), the two ends of the spring (6) are respectively fixedly connected to the fixing plate (7) and the clamping sleeve (2), the fixing plate (7) is in an axial position relative to the clamping sleeve (2), the positioning rod (8) is mounted inside the fixing plate (7) and is movably connected to the clamping sleeve (2), and the clamping block (9) is fixedly arranged on the positioning rod (8).

2. The boring processing fixture for a hydraulic cylinder body according to claim 1, characterized in that: The mobile chip prevention mechanism comprises a driving motor (10), a lead screw (11), a sliding base (12), a chip prevention plate (13) and a fixed plate (14); the driving motor (10) is fixedly mounted on a base (1); one end of the lead screw (11) is fixedly connected to an output end of the driving motor (10); the sliding base (12) is mounted on the base (1) and is slidably connected to the base (1); and the chip prevention plate (13) and the fixed plate (14) are fixedly connected to the sliding base (12).

3. The boring processing fixture for a hydraulic cylinder body according to claim 1, characterized in that: An insertion groove (15) is provided inside the clamping sleeve (2), and an outgoing hole (16) is provided on the insertion groove (15); the positioning rod (8) slides inside the insertion groove (15), and the clamping block (9) passes through the outgoing hole (16).

4. The boring processing fixture for a hydraulic cylinder body according to claim 2, characterized in that: The base (1) is provided with a movable slide groove (17) and an anti-chip slide groove (18); the sliding base (12) slides inside the movable slide groove (17); and the anti-chip plate (13) slides inside the anti-chip slide groove (18).

5. The boring processing fixture for a hydraulic cylinder body according to claim 4, characterized in that: A vertical plate (19) is provided on the base (1), and the other end of the lead screw (11) rotates inside the vertical plate (19).

6. The boring processing fixture for a hydraulic cylinder body according to claim 3, characterized in that: The clamping sleeve (2) is fixedly mounted on a sliding base (12); a supporting plate (20) is provided on the sliding base (12); and the clamping sleeve (2) is fixedly mounted on the supporting plate (20).

7. The boring processing fixture for a hydraulic cylinder body according to claim 1, characterized in that: A rotation groove (21) is provided inside the fixed disk (7), and a connection disk (22) is provided at one end of the positioning rod (8), and the connection disk (22) rotates inside the rotation groove (21).

8. The boring processing fixture for a hydraulic cylinder body according to claim 1, characterized in that: The contact blocks (5) are made of rubber and are equal in number to the clamping rods (4), both being four.

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