Fixture for machining inner hole of cylinder sleeve

Abstract

The utility model relates to the technical field of cylinder sleeve machining, and discloses a cylinder sleeve inner hole machining clamp which comprises a first outer ring, guide grooves are formed in the front side and the rear side of the first outer ring, the inner walls of the guide grooves are slidably connected with movable guide rings, and the inner walls of the movable guide rings are in threaded connection with second threaded rods. The inner wall of the first outer ring is slidably connected with a sliding rod, the right end of the sliding rod is fixedly connected with a second outer ring, the inner wall of the second outer ring is rotatably connected with a rotating ring, and the right end of the rotating ring is fixedly connected with a clamping ring. According to the clamping device, the rotating ring drives the clamping ring to rotate by rotating the third threaded rod, the multiple clamping rods move inwards along the rotating sleeve to clamp a machined part, air cylinder sleeves different in length, size and front-back size are clamped, different clamps do not need to be replaced, the machining time is shortened, and the machining efficiency is improved. And the yield is improved, and the economic loss is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner processing, in particular to a fixture for machining the inner hole of a cylinder liner. Background Technique

[0002] The machining of the inner hole of a cylinder liner is an important manufacturing process. Especially in the production of internal combustion engines and compressors, these inner holes must have high precision and good surface quality to ensure the smooth movement and airtight performance of the piston. The quality of the machining directly affects the performance and reliability of the entire equipment. Therefore, each step requires precise control and careful operation to ensure that the quality of the final product meets the design and customer requirements. Among them, the fixture used for machining the inner hole of a cylinder liner plays a crucial role in manufacturing.

[0003] The fixture for machining the inner hole of a cylinder liner is designed to ensure the stability and precision of the cylinder liner during the machining process. It is divided into mechanical fixtures, hydraulic fixtures, pneumatic fixtures, customized fixtures and automated fixtures. These fixtures clamp the cylinder liner externally, ensuring stability and precision during the machining process. The selection of the appropriate fixture depends on the specific machining requirements, equipment type and working environmental conditions.

[0004] The existing fixtures for machining the inner hole of a cylinder liner on the market can achieve the positioning and clamping of the cylinder liner, but they cannot clamp cylinder liners of different specifications, resulting in insufficient machining precision. Moreover, different models of fixtures need to be replaced, increasing the rejection rate, losses and economic losses. And it needs to be manually taken out after machining, and there is no front and rear limit during the machining process, so it is easy to loosen back and forth during the machining process, resulting in reduced machining precision. The metal chips and high temperature after machining are likely to cause injuries to personnel and delay the production time. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a fixture for machining the inner hole of a cylinder liner, aiming to improve the problems in the prior art that it cannot clamp cylinder liners with different sizes, lengths and inconsistent front and rear sizes, resulting in insufficient machining precision, the need to replace different models of fixtures during the production process, increasing the defective rate, increasing losses and economic losses, delaying the production time, needing to be manually taken out after machining, unable to perform front and rear limits during the machining process, easily loosening back and forth during the machining process, resulting in reduced machining precision, reduced qualified rate, and the metal chips and high temperature on it after machining being likely to cause injuries to personnel.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A fixture for machining the inner hole of a cylinder liner, including an outer ring one. Guide grooves are provided on both the front and rear sides of the outer ring one. A moving guide ring is slidably connected to the inner wall of the guide groove. A second threaded rod is threadedly connected to the inner wall of the moving guide ring. A sliding rod is slidably connected to the inner wall of the outer ring one. The right end of the sliding rod is fixedly connected to an outer ring two. A rotating ring is rotatably connected to the inner wall of the outer ring two. The right end of the rotating ring is fixedly connected to a clamping ring. A plurality of second rotating shafts are rotatably connected to the right end of the clamping ring near the edge. The left end of the second rotating shaft is rotatably connected to a rotating sleeve. A clamping rod is slidably connected to the inner wall of the rotating sleeve. The bottom surface of the clamping rod is rotatably connected to a third rotating shaft. A moving block is fixedly connected to the outer wall of the rotating ring. A third threaded rod is threadedly connected to the inner wall of the moving block. A fixed block is fixedly connected to the right end of the outer ring two. A material taking and limiting device is rotatably connected to the left end of the sliding rod. The material taking and limiting device is used for clamping and taking out the machined cylinder liner front and back.

[0007] As a further description of the above technical solution:

[0008] The material taking and limiting device includes a first rotating shaft. The right end of the first rotating shaft is rotatably connected to the left end of the sliding rod. A clamping block is rotatably connected to the left end of the first rotating shaft. A limiting ring is fixedly connected to the left end of the second threaded rod. A moving disk is slidably connected to the left end of the second threaded rod. Card slots are provided on both the upper and lower sides of the left end of the moving disk. A first threaded rod is threadedly connected to the middle of the moving disk. A limiting disk is fixedly connected to the right end of the first threaded rod.

[0009] As a further description of the above technical solution:

[0010] Legs are fixedly connected to the outer wall of the second threaded rod. A connecting plate is fixedly connected to the bottom surface of the legs.

[0011] As a further description of the above technical solution:

[0012] Fixing screws are threadedly connected to the four corners of the connecting plate. A plurality of the fixing screws are threadedly connected at the same horizontal height.

[0013] As a further description of the above technical solution:

[0014] Handles are fixedly connected to the front and rear sides of the top surface of the connecting plate. Anti-slip sleeves two are fixedly connected to the outer walls of the handles.

[0015] As a further description of the above technical solution:

[0016] A second rotating disk is fixedly connected to the left end of the first threaded rod. An anti-slip sleeve one is fixedly connected to the outer wall of the limiting ring.

[0017] As a further description of the above technical solution:

[0018] An anti-slip pad is fixedly connected to the inner wall of the clamping ring, and the left end of the third rotating shaft is rotatably connected to the right end of the second outer ring.

[0019] As a further description of the above technical solution:

[0020] A first rotating disc is fixedly connected to the bottom end of the third threaded rod, and the outer wall of the third threaded rod is threadedly connected to the inner wall of the fixed block.

[0021] As a further description of the above technical solution:

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by rotating the third threaded rod, the rotating ring drives the clamping ring to rotate, so that a plurality of clamping rods move inward along the rotating sleeve to clamp the workpiece. Then, by rotating the moving guide ring, the first outer ring is driven to move on the outer wall of the second threaded rod, achieving the clamping of cylinder sleeves with different lengths, different sizes, and different front and rear sizes, eliminating the need to replace different fixtures, reducing the processing time, improving the qualified rate, and reducing the economic loss.

[0024] 2. In the utility model, by rotating the first threaded rod, the limiting disc is pushed to the left, and the clamping block is rotated along the first rotating shaft. The moving disc is removed from the clamping of the clamping block along the card slot, achieving the purpose of pushing out the workpiece after processing without manual taking, and being able to position the workpiece before and after during processing. When simultaneous front and rear side processing is required, the feeding and limiting device can be removed, avoiding damage to personnel caused by debris and high temperature on the workpiece after processing, positioning the workpiece before and after during the processing to prevent affecting the processing accuracy, improving the qualified rate, and reducing the loss and economic loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a front-side perspective view of the first outer ring of a fixture for machining the inner hole of a cylinder sleeve proposed by the utility model;

[0026] Figure 2 FIG. is a partial structural display view of the clamping ring of a fixture for machining the inner hole of a cylinder sleeve proposed by the utility model;

[0027] Figure 3 FIG. is a partial structural disassembled view of the second threaded rod of a fixture for machining the inner hole of a cylinder sleeve proposed by the utility model;

[0028] Figure 4 FIG. is a rear-side side view of the moving disc of a fixture for machining the inner hole of a cylinder sleeve proposed by the utility model.

[0029] Legend Explanation:

[0030] 1. Outer ring 1; 2. Feeding limiting device; 201. First threaded rod; 202. Moving disk; 203. First rotating shaft; 204. Limiting disk; 205. Block; 206. Slot; 207. Limiting ring; 3. Second threaded rod; 4. Slide bar; 5. Outer ring 2; 6. Clamping ring; 7. Moving block; 8. Third threaded rod; 9. Fixed block; 10. First rotating disk; 11. Rotating sleeve; 12. Clamping rod; 13. Second rotating shaft; 14. Rotating ring; 15. First anti-slip sleeve; 16. Moving guide ring; 17. Guide groove; 18. Second rotating disk; 19. Fixed screw; 20. Connecting plate; 21. Handle; 22. Second anti-slip sleeve; 23. Leg; 24. Anti-slip pad; 25. Third rotating shaft. Detailed implementation mode

[0031] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] Please refer to the attached Figure 1 -attached Figure 2 , an embodiment provided by the present invention: A fixture for machining the inner hole of a cylinder liner, including an outer ring 1. Guide grooves 17 are opened on both the front and rear sides of the outer ring 1. A moving guide ring 16 is slidably connected to the inner wall of the guide groove 17. The inner wall of the moving guide ring 16 is threadedly connected to a second threaded rod 3. A slide bar 4 is slidably connected to the inner wall of the outer ring 1. The right end of the slide bar 4 is fixedly connected to an outer ring 2. A rotating ring 14 is rotatably connected to the inner wall of the outer ring 2. The right end of the rotating ring 14 is fixedly connected to a clamping ring 6. A plurality of second rotating shafts 13 are rotatably connected to the right end of the clamping ring 6 near the edge. The left end of the second rotating shaft 13 is rotatably connected to a rotating sleeve 11. A clamping rod 12 is slidably connected to the inner wall of the rotating sleeve 11. The bottom surface of the clamping rod 12 is rotatably connected to a third rotating shaft 25. The outer wall of the rotating ring 14 is fixedly connected to a moving block 7. The inner wall of the moving block 7 is threadedly connected to a third threaded rod 8. The right end of the outer ring 2 is fixedly connected to a fixed block 9. The left end of the slide bar 4 is rotatably connected to a feeding limiting device 2. The feeding limiting device 2 is used for clamping front and back and taking out the machined cylinder liner. The bottom end of the third threaded rod 8 is fixedly connected to a first rotating disk 10. The outer wall of the third threaded rod 8 is threadedly connected to the inner wall of the fixed block 9;

[0033] Specifically, guide grooves 17 are provided on both the front and rear sides of the outer ring 1. The guide grooves 17 provide guidance for the moving guide ring 16 to drive the outer ring 1, ensuring the stability of its movement. The inner wall of the moving guide ring 16 is threadedly connected to the second threaded rod 3. By rotating the second threaded rod 3, the moving guide ring 16 can be driven to move back and forth along the guide groove 17, thereby adjusting the clamping position of the device. The setting of the fixing block 9 provides a threaded connection space for the outer wall of the third threaded rod 8, ensuring the stability of the device during adjustment. The left end of the sliding rod 4 is connected to the material taking limiting device 2, which can limit the forward and backward movement of the air cylinder and prevent accidents during the taking-out process.

[0034] Please refer to the attached Figure 3 - attached Figure 4 As shown in the figure, the material taking limiting device 2 includes a first rotating shaft 203. The right end of the first rotating shaft 203 is rotatably connected to the left end of the sliding rod 4. The left end of the first rotating shaft 203 is rotatably connected to a clamping block 205. The left end of the second threaded rod 3 is fixedly connected to a limiting ring 207. A moving disk 202 is slidably connected to the left end of the second threaded rod 3. Card slots 206 are provided on both the upper and lower sides of the left end of the moving disk 202. A first threaded rod 201 is threadedly connected to the middle of the moving disk 202. The right end of the first threaded rod 201 is fixedly connected to a limiting disk 204. The left end of the first threaded rod 201 is fixedly connected to a second rotating disk 18. An anti-slip sleeve 15 is fixedly connected to the outer wall of the limiting ring 207.

[0035] Specifically, by rotating the first threaded rod 201, the positions of the limiting disk 204 and the moving disk 202 can be adjusted to adapt to cylinder sleeves of different sizes. Card slots 206 are provided on both the upper and lower sides of the left end of the moving disk 202, enhancing the fixing ability of the workpiece. A limiting ring 207 is fixed to the left end of the second threaded rod 3. The function of the limiting ring 207 is to prevent the moving disk 202 from displacing during processing. The clamping block 205 is connected to the left end of the first rotating shaft 203, enabling the clamping block 205 to flexibly fix and release the moving disk 202.

[0036] Please refer to the attached Figure 2 - attached Figure 3 As shown in the figure, legs 23 are fixedly connected to the outer wall of the second threaded rod 3. The bottom surface of the legs 23 is fixedly connected to a connecting plate 20. Fixing screws 19 are threadedly connected to the four corners of the connecting plate 20. A plurality of fixing screws 19 are threadedly connected at the same horizontal height. Handles 21 are fixedly connected to the front and rear sides of the top surface of the connecting plate 20. Anti-slip sleeves 22 are fixedly connected to the outer walls of the handles 21. An anti-slip pad 24 is fixedly connected to the inner wall of the clamping ring 6. The left end of the third rotating shaft 25 is rotatably connected to the right end of the outer ring 2 5.

[0037] Specifically, in order to facilitate operation and movement, the top front and rear sides of the connecting plate 20 are fixedly connected with handles 21, and the outer walls of these handles 21 are wrapped with a layer of anti-skid sleeves 22, which can ensure that the user can firmly hold the handles 21 even when there is sweat or oil on the hands, avoiding equipment damage or personal injury caused by slippery hands. The inner wall of the clamping ring 6 is equipped with an anti-skid pad 24. This design takes into account various working conditions that the equipment may encounter during operation. The anti-skid pad 24 can effectively increase friction and greatly improve the safety and efficiency of work.

[0038] Working principle: When it is necessary to clamp different cylinder sleeves, put them into the clamping mechanism from the clamping ring 6, and rotate the movable guide ring 16 according to its length to drive the outer ring 1 and the clamping device connected thereto to adjust to a suitable position, and then rotate the threaded rod 3 8 to drive the moving block 7 to move, so that the rotating ring 14 rotates to drive the clamping ring 6 to rotate, so that the rotating shaft 3 25 rotates to drive the clamping rod 12 to move, and cooperate with the rotating sleeve 11 and the rotating shaft 2 13 to squeeze the clamping rod 12 inward along the rotating sleeve 11 until the front end of the cylinder sleeve to be processed is clamped, and then adjust the same clamping device on the outer ring 1 in the same steps so that it can be stably clamped at the front and back;

[0039] When front and rear limits are required during processing, the threaded rod 201 is rotated to move the limit plate 204 toward the bottom of the cylinder liner with left and right limits until it is supported. When the cylinder liner needs to be processed front and back at the same time, the slot 206 is rotated along the rotating shaft 203 so that it can be parallel to the slot 206, and the movable plate 202 and the equipment connected thereto can be removed. When the processed cylinder liner needs to be removed, the left and right limits are first released, and then the threaded rod 201 is rotated to push the cylinder liner out along the rotating ring 14 and the clamping ring 6.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for machining the inner hole of a cylinder liner, including an outer ring one (1), characterized in that: Both the front and rear sides of the outer ring one (1) are provided with guide grooves (17). A moving guide ring (16) is slidably connected to the inner wall of the guide groove (17). A second threaded rod (3) is threadedly connected to the inner wall of the moving guide ring (16). A sliding rod (4) is slidably connected to the inner wall of the outer ring one (1). The right end of the sliding rod (4) is fixedly connected to an outer ring two (5). A rotating ring (14) is rotatably connected to the inner wall of the outer ring two (5). The right end of the rotating ring (14) is fixedly connected to a clamping ring (6). A plurality of second rotating shafts (13) are rotatably connected to the right end of the clamping ring (6) near the edge. The left end of the second rotating shaft (13) is rotatably connected to a rotating sleeve (11). A clamping rod (12) is slidably connected to the inner wall of the rotating sleeve (11). The bottom surface of the clamping rod (12) is rotatably connected to a third rotating shaft (25). A moving block (7) is fixedly connected to the outer wall of the rotating ring (14). A third threaded rod (8) is threadedly connected to the inner wall of the moving block (7). A fixed block (9) is fixedly connected to the right end of the outer ring two (5). The left end of the sliding rod (4) is rotatably connected to a material taking and limiting device (2). The material taking and limiting device (2) is used for clamping and taking out the processed cylinder liner front and back.

2. The fixture for machining the inner hole of a cylinder liner according to claim 1, characterized in that: The material taking and limiting device (2) includes a first rotating shaft (203). The right end of the first rotating shaft (203) is rotatably connected to the left end of the sliding rod (4). A clamping block (205) is rotatably connected to the left end of the first rotating shaft (203). A limiting ring (207) is fixedly connected to the left end of the second threaded rod (3). A moving disk (202) is slidably connected to the left end of the second threaded rod (3). Card slots (206) are provided on both the upper and lower sides of the left end of the moving disk (202). A first threaded rod (201) is threadedly connected to the middle of the moving disk (202). A limiting disk (204) is fixedly connected to the right end of the first threaded rod (201).

3. A fixture for machining the inner hole of a cylinder liner according to claim 1, characterized in that: Legs (23) are fixedly connected to the outer wall of the second threaded rod (3). A connecting plate (20) is fixedly connected to the bottom surface of the legs (23).

4. A fixture for machining the inner hole of a cylinder liner according to claim 3, characterized in that: Fixing screws (19) are threadedly connected to the four corners of the connecting plate (20). A plurality of the fixing screws (19) are threadedly connected at the same horizontal height.

5. A fixture for machining the inner hole of a cylinder liner according to claim 3, characterized in that: Handles (21) are fixedly connected to both the front and rear sides of the top surface of the connecting plate (20). Anti-slip sleeves two (22) are fixedly connected to the outer wall of the handles (21).

6. A fixture for machining the inner hole of a cylinder liner according to claim 2, characterized in that: A second rotating disk (18) is fixedly connected to the left end of the first threaded rod (201). An anti-slip sleeve one (15) is fixedly connected to the outer wall of the limiting ring (207).

7. A fixture for machining the inner hole of a cylinder liner according to claim 1, characterized in that: An anti-slip pad (24) is fixedly connected to the inner wall of the clamping ring (6). The left end of the third rotating shaft (25) is rotatably connected to the right end of the outer ring two (5).

8. A fixture for machining the inner hole of a cylinder liner according to claim 1, characterized in that: A first rotating disk (10) is fixedly connected to the bottom end of the third threaded rod (8). The outer wall of the third threaded rod (8) is threadedly connected to the inner wall of the fixed block (9).

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