A hydraulic cylinder processing drilling machine clamp

By designing a drilling machine fixture for machining hydraulic cylinders with a combination structure of sliding rods, sliding sleeves, and limit rods, the problem of difficult fixture replacement in the existing technology has been solved. This enables fast and stable fixture replacement and adapts to the clamping of hydraulic cylinders of different sizes, avoiding loosening and scratches during machining.

CN224390567UActive Publication Date: 2026-06-23HEBEI YULONG MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI YULONG MASCH CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-23

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  • Figure CN224390567U_ABST
    Figure CN224390567U_ABST
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Abstract

The utility model provides a hydraulic oil cylinder processing is with drilling machine clamp relates to drilling machine clamp field. The inner wall of mounting seat is equipped with fixed groove, the inside of fixed groove is equipped with limit slot, the inside of fixed groove is provided with quick release mechanism. This processing is with the cooperation of drilling machine clamp of sliding rod, sliding sleeve, limit rod, fastening sleeve, limit post, mounting block and spring, when replacing clamp, anticlockwise rotation loosens fastening sleeve, spring pushes sliding sleeve right shift, limit rod is from the clamping groove of limit post and exits, at this moment, the mounting block is pulled up, namely can take out whole clamp assembly from fixed groove, when loading new clamp, the mounting block is aligned fixed groove and is pressed down, limit post is along limit slot and is pressed limit rod, limit rod is pushed back to the recess of limit post and is clamped after short time removal by spring, finally, the fastening sleeve is screwed and locked, the whole process does not need tool auxiliary alignment, and clamp is installed without any slack gap after, realizes the replacement of different types of special fixture.
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Description

Technical Field

[0001] This utility model relates to a drilling machine fixture for machining, specifically a drilling machine fixture for machining hydraulic cylinders, belonging to the field of drilling machine fixture technology. Background Technology

[0002] Drilling machine fixtures are fixed tools used to process workpieces on a drilling machine. The workpiece is positioned within the fixture using locating elements instead of support points. However, both the locating elements and the workpiece's positioning datum have manufacturing errors. These factors affect the accuracy of workpiece positioning. But with advancements in science and technology, the functional requirements for drilling machine fixtures are constantly increasing.

[0003] A search revealed Chinese Patent CN212371652U, which discloses a drilling machine fixture for machining hydraulic cylinders. The fixture includes foot pads, a worktable on the upper outer surface of the foot pads, and fixing clips on the lower outer surfaces of the worktable. The upper outer surface of each fixing clip has a fixing groove. This utility model's drilling machine fixture for machining hydraulic cylinders features folding foot pads, hinges, fixing grooves, toothed grooves, fixing clips, and sliding rods. These features facilitate fixing the drilling machine fixture and provide greater stability for the workpiece, leading to better application prospects.

[0004] While the above solutions facilitate the fixing of the drilling machine fixture and make the workpiece more stable, leading to better application prospects, the fixing groove on the drilling machine fixture in the above patent is difficult to replace with different types of special fixtures. When the hydraulic cylinder is processed, the use of non-special fixtures forcibly installed results in a matching gap between the fixture and the fixing groove, causing scratches on the surface. Therefore, we provide a drilling machine fixture for hydraulic cylinder processing to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling machine fixture for hydraulic cylinder processing in order to solve the above-mentioned problems, thereby solving the problem that it is difficult to replace different types of special fixtures in the prior art.

[0006] This utility model is achieved through the following technical solution: a drilling machine fixture for machining hydraulic cylinders, including a mounting base, a fixing groove is provided on the inner wall of the mounting base, and a limit groove is provided on the inner side of the fixing groove;

[0007] The fixed groove is provided with a quick-release mechanism. The quick-release mechanism includes a slide rod fixedly connected to the inner side of the fixed groove. A slide sleeve is slidably connected to the outer surface of the slide rod. A limit rod is fixedly connected to the outer surface of the slide sleeve. A limit post is snapped onto the outer surface of the limit rod. An installation block is fixedly connected to the upper end of the limit post. A fastening sleeve is threaded onto the limit rod.

[0008] Preferably, a spring is sleeved on the outer surface of the slide rod, and one end of the spring is fixedly connected to the inner side of the fixing groove. The spring is installed on the slide rod, and when the fixing of the limiting rod is released, the slide sleeve can be pushed to move under the action of the spring.

[0009] Preferably, the other end of the spring is fixedly connected to one side of the sliding sleeve, the sliding sleeve passes through the sliding rod, and the sliding sleeve is installed on the sliding rod. When the limiting post is fixed, the sliding sleeve can slide on the sliding rod.

[0010] Preferably, the inner side of the fixing groove is inserted into the mounting block, and one side of the limiting post is inserted into the inner side of the limiting groove. When the fixture is installed in the fixing groove, the limiting post can be inserted into the limiting groove to fix the limiting groove and prevent loosening during processing.

[0011] Preferably, a mounting plate is fixedly connected to the upper surface of the mounting block, and a sliding groove is fixedly formed on the upper surface of the mounting plate. The mounting plate is mounted on the mounting block, and the sliding groove on the mounting plate allows the clamping block to move.

[0012] Preferably, a fixing plate is fixedly connected to the upper surface of the mounting plate, and a threaded rod is threadedly connected to the inner wall of the fixing plate. The threaded rod passes through the fixing plate, the fixing plate is mounted on the mounting plate, and the threaded rod is mounted on the fixing plate. The clamping block can be moved by pushing the threaded rod.

[0013] Preferably, one end of the threaded rod is rotatably connected to a clamping block, and the lower end of the clamping block is slidably connected to the inner side of the slide groove. When the clamping block moves, the slide groove can guide the clamping block to prevent the clamping block from tilting during movement.

[0014] Preferably, a rotating handle is fixedly connected to the other end of the threaded rod, and a positioning block is fixedly connected to the upper surface of the mounting plate. The rotating handle is mounted on the threaded rod, and the threaded rod can be rotated by rotating the rotating handle.

[0015] This utility model provides a drilling machine fixture for machining hydraulic cylinders, which has the following beneficial effects:

[0016] 1. This drilling machine fixture uses a sliding rod, sliding sleeve, limit rod, fastening sleeve, limit post, mounting block, and spring in combination. When changing the fixture, rotate the fastening sleeve counterclockwise to loosen it. The spring pushes the sliding sleeve to the right, and the limit rod exits from the slot of the limit post. At this time, pull the mounting block upward to remove the entire fixture assembly from the fixed slot. When installing a new fixture, align the mounting block with the fixed slot and press it down. The limit post moves down along the limit slot and squeezes the limit rod. After the limit rod moves outward briefly, it is pushed back by the spring and locked into the recess of the limit post. Finally, tighten the fastening sleeve to complete the locking. No tools are needed for alignment throughout the process, and there is no looseness or gap after the fixture is installed, allowing for the replacement of different types of special fixtures.

[0017] 2. This drilling machine fixture uses a combination of mounting plate, slide groove, fixed plate, threaded rod, rotating handle, clamping block, and positioning block. By rotating the rotating handle, the threaded rod moves within the fixed plate, pushing the clamping block to slide linearly along the slide groove. Combined with the fixed positioning block, this forms an adjustable clamping area. The extended length of the slide groove significantly increases the stroke range of the clamping block, making it compatible with hydraulic cylinder workpieces of different sizes, from small valve blocks to large cylinder barrels, without the need to replace the fixture components. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention from the rear view.

[0020] Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model.

[0022] [Explanation of Key Component Symbols]

[0023] 1. Mounting base; 2. Fixing groove; 3. Limiting groove;

[0024] 4. Quick-release mechanism; 401. Sliding rod; 402. Sliding sleeve; 403. Limiting rod; 404. Fastening sleeve; 405. Limiting post; 406. Mounting block; 407. Spring;

[0025] 5. Mounting plate; 6. Slide groove; 7. Fixing plate; 8. Threaded rod; 9. Rotating handle; 10. Clamping block; 11. Positioning block. Detailed Implementation

[0026] This utility model provides a drilling machine fixture for machining hydraulic cylinders.

[0027] Please see Figure 3 The device includes a mounting base 1, with a fixing groove 2 on the inner wall of the mounting base 1. The inner side of the fixing groove 2 is inserted into the mounting block 406. One side of the limiting post 405 is inserted into the inner side of the limiting groove 3. The mounting block 406 is installed in the fixing groove 2, allowing for the replacement of different types of clamps to facilitate the clamping of hydraulic cylinders of different shapes. The limiting post 405 is inserted into the limiting groove 3 to prevent the clamp from loosening during processing and to provide a fixing function. The inner side of the fixing groove 2 has a limiting groove 3.

[0028] Please see Figure 4The fixed groove 2 is equipped with a quick-release mechanism 4. The quick-release mechanism 4 includes a slide rod 401 fixedly connected to the inner side of the fixed groove 2. A spring 407 is sleeved on the outer surface of the slide rod 401. The other end of the spring 407 is fixedly connected to one side of the slide sleeve 402. The slide sleeve 402 passes through the slide rod 401. The spring 407 is installed on the slide sleeve 402. When the fixing of the limiting post 405 is released, the spring 407 can push the slide sleeve 402 to move, thereby allowing different types of clamps to be replaced.

[0029] One end of the spring 407 is fixedly connected to the inner side of the fixing groove 2. The spring 407 is installed on the slide rod 401. The spring 407 can make the fastening sleeve 404 slide on the slide rod 401 by its own elastic force, thereby driving the limiting rod 403 to fix the limiting post 405. The outer surface of the slide rod 401 is slidably connected to the sliding sleeve 402. The outer surface of the sliding sleeve 402 is fixedly connected to the limiting rod 403. The outer surface of the limiting rod 403 is engaged with the limiting post 405. The upper end of the limiting post 405 is fixedly connected to the mounting block 406. When it is necessary to change the clamp, the fastening sleeve 404 can be loosened to release the fastening of the limiting rod 403. After the limiting rod 403 is released, the spring 407 can push the sliding sleeve 402 and the limiting rod 403 to release the fixation of the limiting post 405, thereby allowing the replacement of different types of clamps.

[0030] Please see Figure 1 Mounting block 406 has a mounting plate 5 fixedly connected to its upper surface, a fixing plate 7 fixedly connected to its upper surface, a threaded rod 8 threadedly connected to the inner wall of fixing plate 7, a rotating handle 9 fixedly connected to the other end of threaded rod 8, a positioning block 11 fixedly connected to its upper surface, and the rotating handle 9 mounted on threaded rod 8. When it is necessary to clamp the hydraulic cylinder, rotating the rotating handle 9 can drive the threaded rod 8 to rotate, thereby pushing the clamping block 10 to clamp the hydraulic cylinder.

[0031] Please see Figure 2 One end of the threaded rod 8 is rotatably connected to a clamping block 10. The lower end of the clamping block 10 is slidably connected to the inner side of the slide groove 6. The threaded rod 8 is mounted on the clamping block 10. When the threaded rod 8 rotates, it pushes the clamping block 10 to slide inside the slide groove 6. This is suitable for clamping hydraulic cylinders of different sizes. The slide groove 6 can guide the clamping block 10 to prevent it from tilting during sliding, thus playing a guiding role. The threaded rod 8 passes through the fixing plate 7, which is mounted on the mounting plate 5. The fixing plate 7 can fix the threaded rod 8 to prevent it from shaking during rotation, thus playing a fixing role.

[0032] The upper surface of the mounting plate 5 is fixedly provided with a sliding groove 6. The mounting plate 5 is installed on the mounting block 406. After the mounting block 406 is released, different types of clamping components can be replaced. The sliding groove 6 provided on the mounting plate 5 allows the clamping block 10 to slide back and forth. The limiting rod 403 is threadedly connected to the fastening sleeve 404.

[0033] Working principle: When the fixture needs to be changed, rotating counterclockwise loosens the fastening sleeve 404, releasing the threaded locking force on the limiting rod 403. The spring 407 automatically releases the elastic force, pushing the sliding sleeve 402 to slide to the right along the sliding rod 401. This causes the limiting rod 403 to disengage from the slot of the limiting post 405. Pulling up the mounting block 406 moves the limiting post 405 out of the limiting groove 3, allowing the entire fixture assembly to be removed from the fixing groove 2. When installing a new fixture, align the mounting block 406 of the new fixture with the fixing groove 2 and press it vertically downwards, causing the limiting post 405 to insert into the limiting groove 3. This prevents the fixture from loosening during processing. During the downward pressing process, the inclined surface of the limiting post 405 presses against the limiting rod 403, forcing it to... The limiting rod 403 briefly moves outward and compresses the spring 407. When the limiting post 405 moves down to align with the limiting rod 403 in the slot, the spring 407 pushes the limiting rod 403 back into the recess. Then, the fastening sleeve 404 is tightened clockwise, and the limiting rod 403 is pressed by the thread preload, completing the double locking. The hydraulic cylinder workpiece is placed on the mounting plate 5, and the workpiece reference surface is close to the vertical positioning surface of the positioning block 11. Rotating the handle 9 clockwise can drive the threaded rod 8 to feed linearly in the threaded hole of the fixing plate 7. The threaded rod 8 pushes the clamping block 10 to slide smoothly along the slide groove 6. The arc-shaped working surface of the clamping block 10 contacts the outer circle of the workpiece. The T-shaped guide rail structure of the slide groove 6 constrains the clamping block 10 and resists the drilling cutting torque, realizing the replacement of different types of special fixtures.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drilling machine fixture for machining hydraulic cylinders, comprising a mounting base (1), characterized in that: The mounting base (1) has a fixing groove (2) on its inner wall, and a limiting groove (3) is provided on the inner side of the fixing groove (2); The fixed groove (2) is provided with a quick-release mechanism (4). The quick-release mechanism (4) includes a slide rod (401) fixedly connected to the inner side of the fixed groove (2). A slide sleeve (402) is slidably connected to the outer surface of the slide rod (401). A limit rod (403) is fixedly connected to the outer surface of the slide sleeve (402). A limit post (405) is snapped onto the outer surface of the limit rod (403). An installation block (406) is fixedly connected to the upper end of the limit post (405). A fastening sleeve (404) is threadedly connected to the limit rod (403).

2. The drilling machine fixture for machining hydraulic cylinders according to claim 1, characterized in that: A spring (407) is sleeved on the outer surface of the slide rod (401), and one end of the spring (407) is fixedly connected to the inner side of the fixing groove (2).

3. A drilling machine fixture for machining hydraulic cylinders according to claim 2, characterized in that: The other end of the spring (407) is fixedly connected to one side of the sliding sleeve (402), and the sliding sleeve (402) passes through the sliding rod (401).

4. A drilling machine fixture for machining hydraulic cylinders according to claim 1, characterized in that: The inner side of the fixing groove (2) is inserted into the mounting block (406), and one side of the limiting post (405) is inserted into the inner side of the limiting groove (3).

5. A drilling machine fixture for machining hydraulic cylinders according to claim 1, characterized in that: The upper surface of the mounting block (406) is fixedly connected to the mounting plate (5), and the upper surface of the mounting plate (5) is fixedly provided with a sliding groove (6).

6. A drilling machine fixture for machining hydraulic cylinders according to claim 5, characterized in that: A fixing plate (7) is fixedly connected to the upper surface of the mounting plate (5), and a threaded rod (8) is threadedly connected to the inner wall of the fixing plate (7), and the threaded rod (8) passes through the fixing plate (7).

7. A drilling machine fixture for machining hydraulic cylinders according to claim 6, characterized in that: One end of the threaded rod (8) is rotatably connected to a clamping block (10), and the lower end of the clamping block (10) is slidably connected to the inner side of the slide groove (6).

8. A drilling machine fixture for machining hydraulic cylinders according to claim 7, characterized in that: The other end of the threaded rod (8) is fixedly connected to a rotating handle (9), and the upper surface of the mounting plate (5) is fixedly connected to a positioning block (11).