Machining tool for hydraulic cylinder of diesel engine

Through innovative design of the chuck, support seat, and linkage mechanism, the problem of rapid multi-point locking of diesel engine hydraulic cylinders during machining has been solved, achieving a stable and efficient machining process.

CN223776559UActive Publication Date: 2026-01-09SUZHOU YILAIERTE MASCH CO LTD
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Patent Information

Application Number
CN202520159063.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-09
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Existing hydraulic cylinder machining fixtures cannot achieve rapid and multi-point locking in diesel engines, which makes them prone to loosening during machining.

Method used

It adopts a combination design of chuck, support, sliding seat and linkage mechanism. Multi-point limit is achieved by components such as linkage rack, transmission rod and driven gear, and the worm gear self-locking structure is used to prevent loosening. Combined with the detachable screw adjustment, stable clamping is achieved.

Benefits of technology

It enables rapid disassembly and assembly of diesel engine hydraulic cylinders and stable multi-point clamping, improving processing efficiency and stability, and reducing frictional resistance and wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hydraulic cylinder machining tools, in particular to a diesel engine hydraulic cylinder machining tool which comprises a chuck, a bearing seat, a sliding seat, an abutting plate, a linkage mechanism, an abutting screw and a positioning rod, the bearing seat is arranged on the chuck, a groove is formed in the chuck, the sliding seat is slidably connected into the groove of the chuck, and the abutting screw is arranged on the sliding seat. An abutting plate is fixed to the sliding seat and is opposite to the bearing seat, and a mounting cavity is formed in the chuck. According to the diesel engine hydraulic cylinder machining tool, the bearing base and the abutting plate are arranged, the multi-point limiting effect on a diesel engine hydraulic cylinder is achieved, meanwhile, limiting points are increased through the positioning rod, the machining tool is more targeted, then the diesel engine hydraulic cylinder can be firmly locked, the sliding base can drive the abutting plate to slide on the chuck through the arrangement of the linkage mechanism, and the machining efficiency is improved. And therefore, the hydraulic cylinder of the diesel engine can be quickly disassembled and assembled on the chuck, and time and labor are saved.
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Description

Technical Field

[0001] This application relates to the technical field of hydraulic cylinder machining tooling, and in particular to a hydraulic cylinder machining tooling for a diesel engine. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, a speed reduction device can be eliminated, and there is no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines, such as in diesel engines.

[0003] In related technologies, in order to ensure the accuracy of hydraulic cylinders, it is often necessary to use machining fixtures to fix them during the processing before subsequent processing operations, such as deburring, grinding, polishing and cleaning of surface stains, can be carried out.

[0004] However, although there are various machining fixtures for hydraulic cylinders, there are still certain problems. For example, in the hydraulic cylinder machining fixture disclosed in publication number CN118635780B, although it can be applied to the machining of hydraulic cylinders of various specifications, has a high degree of automation, relatively low overall cost, and little impact of dust and debris on the overall operation of the fixture, in this technical solution and most current technical solutions, the locking effect of the hydraulic cylinder is mostly achieved by pressing the cylinder body with a pressure plate perpendicular to the cylinder body.

[0005] Locking the cylinder by pressing it with a pressure plate perpendicular to the cylinder body can only lock the cylinder body at one point. It is easy to loosen during the processing. For example, when processing the hydraulic cylinder of a diesel engine, it is impossible to lock it quickly and at multiple points. Utility Model Content

[0006] The purpose of this utility model is to provide a machining fixture for diesel engine hydraulic cylinders, which can solve the problem mentioned above of the inability to quickly and multi-point clamp and lock diesel engine hydraulic cylinders.

[0007] The technical solution for machining a diesel engine hydraulic cylinder provided in this application is as follows:

[0008] A machining fixture for a diesel engine hydraulic cylinder, comprising:

[0009] The chuck has a support seat and a groove. A sliding seat is slidably connected in the groove of the chuck. An abutment plate is fixed on the sliding seat. The abutment plate is disposed opposite to the support seat. The chuck has an installation cavity inside.

[0010] The linkage mechanism comprises a linkage rack, a transmission rod and a driven gear, the linkage rack is fixed on the sliding seat away from the abutting plate, and is in sliding connection with the chuck, the transmission rod is rotationally connected in the mounting cavity of the chuck, the driven gear is coaxially fixed on the transmission rod, and the driven gear is in mesh with the linkage rack;

[0011] The supporting seat and the abutting plate are both in the shape of a Chinese character 'fang', and abutting screws are arranged at both ends of the side where the supporting seat and the abutting plate are close to each other.

[0012] In one or more embodiments of the utility model, two positioning rods are symmetrically arranged on the supporting seat.

[0013] In one or more embodiments of the utility model, the linkage mechanism further comprises a worm gear and a worm, the worm gear is coaxially fixed on the transmission rod and located at one side of the driven gear, and the worm is rotationally connected in the mounting cavity of the chuck and in mesh with the worm gear.

[0014] In one or more embodiments of the utility model, the linkage mechanism further comprises a driving gear, a driving rack and a cylinder, the driving gear is coaxially fixed on one end of the worm, the cylinder is arranged in the mounting cavity of the chuck, the driving rack is fixed on the telescopic part of the cylinder, and the driving rack is in mesh with the driving gear.

[0015] In one or more embodiments of the utility model, a guide seat is fixed on the back of the driving rack, and a slide rail is fixed in the mounting cavity of the chuck, and the guide seat is slidingly connected on the slide rail.

[0016] In one or more embodiments of the utility model, the cross section of the slide rail and the notch on the guide seat are both in the shape of an I-beam, and a ball bearing is rotationally arranged on the inner wall of the notch of the guide seat, and the slide rail is in abutment with the ball bearing.

[0017] In one or more embodiments of the utility model, screw holes are arranged through the supporting seat and the abutting plate, and the abutting screws are detachably screwed in the screw holes.

[0018] Compared with the prior art, the utility model realizes the multi-point limiting effect on the hydraulic cylinder of the diesel engine by arranging the supporting seat and the abutting plate, and simultaneously increases the limiting points by the positioning rods, so that the processing tool is more targeted, and the hydraulic cylinder of the diesel engine can be firmly locked, the sliding seat can drive the abutting plate to slide on the chuck by arranging the linkage mechanism, so that the hydraulic cylinder of the diesel engine can be quickly disassembled and assembled on the chuck, time and labor are saved, and the stability of clamping is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the technical scheme in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is an external overall structure schematic diagram of a diesel engine hydraulic cylinder machining tool in the embodiment of the present application.

[0021] Figure 2 is an enlarged structure schematic diagram of a chuck in the embodiment of the present application.

[0022] Figure 3 is a linkage mechanism structure schematic diagram in the embodiment of the present application.

[0023] Figure 4 is a worm gear and its overall connection structure schematic diagram in the embodiment of the present application.

[0024] Explanation of reference signs:

[0025] 1, chuck; 2, supporting seat; 3, sliding seat; 4, abutting plate; 5, linkage mechanism; 51, linkage rack; 52, transmission rod; 53, driven gear; 54, worm gear; 55, worm; 56, driving gear; 57, driving rack; 58, cylinder; 59, guide seat; 510, sliding rail; 6, abutting screw; 7, positioning rod. DETAILED DESCRIPTION

[0026] In order to make the technical scheme in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0027] The embodiment of the present application discloses a diesel engine hydraulic cylinder machining tool.

[0028] Reference Figure 1 and Figure 2The utility model provides a kind of diesel engine hydraulic cylinder processing frock, including chuck 1, support seat 2, sliding seat 3, abutment plate 4, linkage mechanism 5, abutment screw 6 and positioning rod 7, chuck 1 is provided with support seat 2, and recess is provided on chuck 1, sliding connection is carried out in the recess of chuck 1 with sliding seat 3, abutment plate 4 is fixed on sliding seat 3, and abutment plate 4 is oppositely arranged with support seat 2, the inside of chuck 1 is provided with installation cavity, linkage mechanism 5 is arranged in the installation cavity of chuck 1, support seat 2 and abutment plate 4 are all in the shape of a Chinese character, and abutment screw 6 is arranged on both ends of the side of support seat 2 and abutment plate 4 close to each other, positioning rod 7 is also fixed on support seat 2, and positioning rod 7 is symmetrically provided with two on support seat 2.

[0029] Linkage mechanism 5 includes linkage rack 51, transmission rod 52 and driven gear 53, linkage rack 51 is fixed on the side of sliding seat 3 away from abutment plate 4, and is slidably connected with chuck 1, transmission rod 52 is rotatably connected in the installation cavity of chuck 1, driven gear 53 is coaxially fixed on transmission rod 52, and driven gear 53 is engaged with linkage rack 51.

[0030] In the utility model, by being provided with support seat 2 and abutment plate 4, the multi-point limiting effect for the hydraulic cylinder of diesel engine is realized, and the positioning rod 7 is used to increase the limiting point, so that the processing frock is more targeted, and the hydraulic cylinder of diesel engine can be firmly locked, the linkage mechanism 5 is used to make the sliding seat 3 drive the abutment plate 4 to slide on the chuck 1, so that the hydraulic cylinder of diesel engine can be quickly disassembled and assembled on the chuck 1, time and labor are saved, and the stability of clamping is ensured.

[0031] Refer to Figure 3 And Figure 4 In the embodiment, linkage mechanism 5 further includes worm gear 54, worm 55, driving gear 56, driving rack 57 and cylinder 58, worm gear 54 is coaxially fixed on transmission rod 52, and located on the side of driven gear 53, worm 55 is rotatably connected in the installation cavity of chuck 1, and is engaged with worm gear 54, driving gear 56 is coaxially fixed on one end of worm 55, cylinder 58 is arranged in the installation cavity of chuck 1, driving rack 57 is fixed on the telescopic part of cylinder 58, and driving rack 57 is engaged with driving gear 56.

[0032] In the utility model, the extension and contraction of the extension and contraction part of the air cylinder 58 drives the driving rack 57 linkage, and simultaneously drives the driving gear 56 to mesh linkage, the driving gear 56 drives the worm 55 to rotate, further drives the worm gear 54 to mesh linkage through the worm 55, and the worm gear 54 and the worm 55 are combined to form a self-locking structure, to avoid the situation that the hydraulic cylinder is loosened due to the reverse rotation of the driven gear 53 after the diesel engine hydraulic cylinder is clamped and locked, the transmission rod 52 and the driven gear 53 are driven to rotate as a whole by the worm gear 54, and further enable the linkage rack 51 to mesh linkage, and simultaneously drive the sliding seat 3 and the abutment plate 4 to slide on the chuck 1 as a whole.

[0033] In the utility model, the back of the driving rack 57 is fixed with a guide seat 59, and a slide rail 510 is fixed in the mounting cavity of the chuck 1, the guide seat 59 is slidably connected on the slide rail 510, the slide rail 510 limits the guide seat 59, and further realizes the limiting and guiding effect of the driving rack 57.

[0034] In the utility model, the section of the slide rail 510 and the notch on the guide seat 59 are both in I-shaped structure, and the guide seat 59 is rotatably provided with a ball in the notch inner wall, and the slide rail 510 abuts against the ball.

[0035] In the utility model, the rolling of the ball reduces the friction resistance between the guide seat 59 and the slide rail 510, and also reduces the abrasion.

[0036] In the utility model, screw holes are formed through the supporting seat 2 and the abutment plate 4, and the abutment screw rod 6 is detachably screwed in the screw holes, through the detachable connection structure, the abutment screw rod 6 can be disassembled and adjusted according to the actual situation.

[0037] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A hydraulic cylinder machining tool for a diesel engine, characterized by, Include: The chuck (1) is provided with a supporting seat (2), and a groove is provided on the chuck (1), the sliding seat (3) is slidably connected in the groove of the chuck (1), the abutting plate (4) is fixed on the sliding seat (3), the abutting plate (4) is arranged opposite to the supporting seat (2), and the inside of the chuck (1) is provided with a mounting cavity. The linkage mechanism (5) comprises a linkage rack (51), a transmission rod (52) and a driven gear (53), the linkage rack (51) is fixed on the side of the sliding seat (3) away from the abutting plate (4) and is slidably connected with the chuck (1), the transmission rod (52) is rotatably connected in the mounting cavity of the chuck (1), the driven gear (53) is coaxially fixed on the transmission rod (52), and the driven gear (53) is engaged with the linkage rack (51). The supporting seat (2) and the abutting plate (4) are both in the shape of a Chinese character, and the abutting screw (6) is arranged at both ends of the side of the supporting seat (2) and the abutting plate (4) close to each other.

2. The hydraulic cylinder machining tooling fixture for a diesel engine of claim 1, wherein: The supporting seat (2) is also fixed with a positioning rod (7), and two positioning rods (7) are symmetrically arranged on the supporting seat (2).

3. The hydraulic cylinder machining tooling fixture for a diesel engine of claim 1, wherein: The linkage mechanism (5) further comprises a worm wheel (54) and a worm (55), the worm wheel (54) is coaxially fixed on the transmission rod (52) and located on one side of the driven gear (53), and the worm (55) is rotatably connected in the mounting cavity of the chuck (1) and engaged with the worm wheel (54).

4. The hydraulic cylinder machining tooling fixture for a diesel engine of claim 3, wherein: The linkage mechanism (5) further comprises a driving gear (56), a driving rack (57) and a cylinder (58), the driving gear (56) is coaxially fixed on one end of the worm (55), the cylinder (58) is arranged in the mounting cavity of the chuck (1), and the driving rack (57) is fixed on the telescopic part of the cylinder (58) and engaged with the driving gear (56).

5. A hydraulic cylinder machining tool for a diesel engine as claimed in claim 4, wherein: The back of the driving rack (57) is fixed with a guide seat (59), and a slide rail (510) is fixed in the mounting cavity of the chuck (1), and the guide seat (59) is slidably connected with the slide rail (510).

6. A hydraulic cylinder machining tool for a diesel engine as claimed in claim 5, wherein: The cross section of the slide rail (510) and the notch on the guide seat (59) are both in the shape of an I-beam, and the guide seat (59) is rotatably arranged with a ball in the inner wall of the notch, and the slide rail (510) is abutted with the ball.

7. The hydraulic cylinder machining fixture for a diesel engine according to claim 1, characterized in that: Screw holes are arranged on the supporting seat (2) and the abutting plate (4), and the abutting screw (6) is detachably screwed into the screw holes.

Citation Information

Patent Citations

  • A hydraulic cylinder processing tool

    CN118635780B