Center line fixing clamp for cylinder sleeve machining

By designing a centerline fixture and utilizing a cylindrical block, a tightening mechanism, and a clamping mechanism, the outer and inner surfaces of the cylinder liner can be fixed simultaneously, solving the problem of poor fixing of existing fixtures and improving processing accuracy and efficiency.

CN223383369UActive Publication Date: 2025-09-26GANSU ZHENGBANG INTERNAL COMBUSTION ENGINE PARTS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422898438.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-09-26
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing cylinder liner machining fixtures are not effective in fixing the cylinder liner, resulting in machining errors, especially when the outer and inner surfaces are machined simultaneously, causing shaking or oscillation.

Method used

A centerline fixture was designed, which included a cylindrical block, a clamping mechanism, a driving mechanism, and a clamping mechanism. Through the cooperation of a servo motor and an electric push rod, the outer and inner surfaces of the cylinder liner were fixed simultaneously to ensure that the center point coincided with the center line of the machining table.

Benefits of technology

The fixing effect of the cylinder sleeve is improved, the normal processing operation is ensured, the processing error is reduced, and the production efficiency is improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223383369U_ABST
    Figure CN223383369U_ABST
Patent Text Reader

Abstract

The center line fixing clamp comprises a machining table, a fixing plate is fixedly installed on the side wall of the machining table, two sliding grooves are formed in the top of the machining table, a cylindrical block is fixedly installed on the top of the machining table, an abutting mechanism is arranged on the cylindrical block, and the abutting mechanism is fixedly installed on the side wall of the machining table. Two sliding grooves are formed in the fixing plate, clamping mechanisms are arranged in the two sliding grooves, a driving mechanism is arranged on the fixing plate, the driving mechanism penetrates through the two clamping mechanisms and is in threaded connection with the two clamping mechanisms, the abutting mechanism comprises a mounting cavity formed in the cylindrical block and two mounting grooves, and abutting blocks are slidably connected into the two mounting grooves. The cylinder liner clamping device is reasonable in structural design, can clamp and fix the outer surface and the inner surface of a cylinder liner at the same time when the cylinder liner is machined, improves the fixing effect on the cylinder liner, and guarantees normal machining operation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder sleeve processing, in particular to a center line fixture for cylinder sleeve processing. Background Art

[0002] Cylinder liner machining fixtures are essential tools in the process, and their design and selection are crucial for ensuring machining accuracy and improving production efficiency. The primary function of a cylinder liner machining fixture is to secure the cylinder liner, maintaining a stable position and posture during machining and preventing machining errors caused by shaking or oscillation.

[0003] In the prior art, when machining a cylinder liner, the outer surface of the cylinder liner is generally clamped and fixed by means of furniture. However, the fixing effect is poor. When machining the cylinder liner, the cylinder liner is prone to rotate on the fixture, affecting the normal machining operation. To this end, we have designed a centerline fixture for machining cylinder liner to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a center line fixture for machining a cylinder sleeve.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] Preferably, the clamping mechanism comprises a threaded slider slidably connected in a sliding groove, a connecting rod is fixedly mounted on the top of the threaded slider, and a clamping plate is fixedly mounted on the end of the connecting rod.

[0008] Preferably, the driving mechanism includes a servo motor fixedly mounted on the top of the fixed plate, a first double-headed screw is fixedly mounted on the end of the output shaft of the servo motor, the first double-headed screw passes through the side wall of the processing table and is rotatably connected thereto, the end of the first double-headed screw is rotatably connected to the inner side wall of the slide groove on the left, and the first double-headed screw passes through two threaded sliders and is threadably connected thereto.

[0009] Preferably, a shielding plate is fixedly mounted on the threaded slider, and the bottom of the shielding plate abuts against the top of the processing table.

[0010] Preferably, a first rubber pad is fixedly mounted on the abutting ends of the two abutting blocks.

[0011] Preferably, a second rubber pad is fixedly mounted on the clamping ends of the two clamping plates.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the arrangement of the cylindrical block, the tightening mechanism, the driving mechanism and the clamping mechanism, the utility model has a reasonable structural design. When processing the cylinder liner, it can simultaneously tighten and fix the outer surface and the inner surface of the cylinder liner, thereby improving the fixing effect of the cylinder liner and ensuring the normal progress of the processing operation.

[0014] 2. Through the setting of the cylindrical block and the tightening mechanism, it is convenient for the operator to place the cylinder liner in the center position, and after the inside of the cylinder liner is tightened and fixed, the center point of the cylinder liner can be made to coincide with the center line of the processing table, which is convenient for the subsequent clamping of the cylinder liner.

[0015] In summary, the structural design of the utility model is reasonable. When processing the cylinder liner, it can simultaneously tighten and fix the outer surface and the inner surface of the cylinder liner, thereby improving the fixing effect of the cylinder liner and ensuring the normal progress of the processing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a centerline fixture for machining a cylinder liner proposed in the present invention;

[0017] Figure 2 This is a structural cross-sectional view of a centerline fixture for machining a cylinder liner proposed in the present invention;

[0018] Figure 3 A top view of the structure of a centerline fixture for machining a cylinder liner proposed in the present invention;

[0019] Figure 4 This is a cross-sectional view of the structure on the cylindrical block.

[0020] In the figure: 1. Processing table; 2. Fixing plate; 3. Servo motor; 4. First double-headed screw; 5. Threaded slider; 6. Shielding plate; 7. Connecting rod; 8. Clamp; 9. Cylindrical block; 10. Slide; 11. Mounting groove; 12. Second double-headed screw; 13. Gear; 14. Stop block; 15. Threaded groove; 16. Electric push rod; 17. Mounting cavity; 18. Rack. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4 A centering fixture for cylinder sleeve processing includes a processing table 1, a fixed plate 2 is fixedly installed on the side wall of the processing table 1, two slide grooves 10 are provided on the top of the processing table 1, a cylindrical block 9 is fixedly installed on the top of the processing table 1, a tightening mechanism is provided on the cylindrical block 9, and a clamping mechanism is provided in the two slide grooves 10. A driving mechanism is provided on the fixed plate 2, and the driving mechanism passes through the two clamping mechanisms and is threadedly connected thereto. The tightening mechanism includes a mounting cavity 17 and two mounting grooves 11 provided on the cylindrical block 9, and both mounting grooves 11 are slidingly connected. It is connected to a stop block 14, and the tightening ends of the two stop blocks 14 are fixedly installed with a first rubber pad. The side walls of the two stop blocks 14 are provided with a threaded groove 15. A second double-headed screw 12 is rotatably connected in the installation cavity 17. Both ends of the second double-headed screw 12 extend into the opposite threaded groove 15 and are threadedly connected thereto. A gear 13 is fixedly installed on the second double-headed screw 12, and an electric push rod 16 is fixedly installed on the inner bottom of the installation cavity 17. A rack 18 is fixedly installed on the telescopic end of the electric push rod 16, and the rack 18 is meshed with the gear 13.

[0023] By setting the cylindrical block 9 and the tightening mechanism, it is convenient for the operator to place the cylinder liner in the center position, and after the inside of the cylinder liner is tightened and fixed, the center point of the cylinder liner can coincide with the center line on the processing table 1, which is convenient for the subsequent clamping plate 8 to clamp and fix the cylinder liner.

[0024] The clamping mechanism includes a threaded slider 5 slidably connected in the slide groove 10, a baffle 6 is fixedly installed on the threaded slider 5, the bottom of the baffle 6 is against the top of the processing table 1, a connecting rod 7 is fixedly installed on the top of the threaded slider 5, and a splint 8 is fixedly installed on the end of the connecting rod 7, and a second rubber pad is fixedly installed on the clamping ends of the two splints 8.

[0025] The driving mechanism includes a servo motor 3 fixedly mounted on the top of the fixed plate 2, and a first double-headed screw 4 is fixedly mounted on the end of the output shaft of the servo motor 3. The first double-headed screw 4 passes through the side wall of the processing table 1 and is rotatably connected thereto. The end of the first double-headed screw 4 is rotatably connected to the inner wall of the slide groove 10 on the left side, and the first double-headed screw 4 passes through the two threaded sliders 5 and is threadably connected thereto.

[0026] Through the arrangement of the cylindrical block 9, the tightening mechanism, the driving mechanism and the clamping mechanism, the utility model has a reasonable structural design. When processing the cylinder liner, it can simultaneously tighten and fix the outer surface and the inner surface of the cylinder liner, thereby improving the fixing effect of the cylinder liner and ensuring the normal progress of the processing operation.

[0027] The functional principle of this utility model can be explained through the following operation modes:

[0028] When the cylinder sleeve needs to be clamped and fixed for processing, first, the operator puts the cylinder sleeve on the cylindrical block 9 so that the bottom of the cylinder sleeve is against the top of the processing table 1, and then the operator starts the electric push rod 16 to extend, and the electric push rod 16 drives the rack 18 to move upward, and the rack 18 drives the gear 13 to rotate, and the gear 13 drives the second double-headed screw 12 to rotate. When the second double-headed screw 12 rotates, it drives the two blocks 14 to slide out of the mounting groove 11, and the side walls of the two blocks 14 are tightly against the inner wall of the cylinder sleeve. Then the operator starts the servo motor 3 to rotate, and the servo motor 3 drives the first double-headed screw 4 to rotate. When the first double-headed screw 4 rotates, it drives the two threaded sliders 5 to slide in the direction close to the cylinder sleeve. The two threaded sliders 5 clamp the cylinder sleeve through the clamping plate 8 on the connecting rod 7, and then the cylinder sleeve can be processed.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A centering fixture for machining a cylinder liner, comprising a machining table (1), characterized in that: A fixed plate (2) is fixedly installed on the side wall of the processing table (1), two slide grooves (10) are opened on the top of the processing table (1), a cylindrical block (9) is fixedly installed on the top of the processing table (1), a tightening mechanism is provided on the cylindrical block (9), and a clamping mechanism is provided in each of the two slide grooves (10), and a driving mechanism is provided on the fixed plate (2), and the driving mechanism passes through the two clamping mechanisms and is threadedly connected to them; The tightening mechanism includes a mounting cavity (17) and two mounting grooves (11) provided on the cylindrical block (9), wherein the two mounting grooves (11) are both slidably connected with a retaining block (14), and the side walls of the two retaining blocks (14) are both provided with a threaded groove (15), and a second double-headed screw (12) is rotatably connected in the mounting cavity (17), and both ends of the second double-headed screw (12) extend into the opposite threaded grooves (15) and are threadedly connected thereto, and a gear (13) is fixedly installed on the second double-headed screw (12), and an electric push rod (16) is fixedly installed on the inner bottom of the mounting cavity (17), and a rack (18) is fixedly installed on the telescopic end of the electric push rod (16), and the rack (18) is meshed with the gear (13).

2. A centering fixture for cylinder liner machining according to claim 1, characterized in that: The clamping mechanism comprises a threaded slider (5) slidably connected in a slide groove (10), a connecting rod (7) is fixedly mounted on the top of the threaded slider (5), and a clamping plate (8) is fixedly mounted on the end of the connecting rod (7).

3. A centering fixture for machining a cylinder liner according to claim 2, characterized in that: The driving mechanism comprises a servo motor (3) fixedly mounted on the top of the fixed plate (2); a first double-headed screw (4) is fixedly mounted on the end of the output shaft of the servo motor (3); the first double-headed screw (4) passes through the side wall of the processing table (1) and is rotatably connected thereto; the end of the first double-headed screw (4) is rotatably connected to the inner side wall of the left sliding groove (10); the first double-headed screw (4) passes through two threaded sliders (5) and is threadably connected thereto.

4. A centering fixture for machining a cylinder liner according to claim 2, characterized in that: A shielding plate (6) is fixedly mounted on the threaded slider (5), and the bottom of the shielding plate (6) abuts against the top of the processing table (1).

5. The centering fixture for machining a cylinder liner according to claim 1, characterized in that: The abutting ends of the two abutting blocks (14) are both fixedly mounted with a first rubber pad.

6. A centering fixture for machining a cylinder liner according to claim 2, characterized in that: The clamping ends of the two clamping plates (8) are both fixedly mounted with a second rubber pad.