Solid piston rod whole body grinding tool

Abstract

The utility model discloses a whole-body grinding tool for a solid piston rod in the technical field of piston rod machining, and aims to solve the problems that in the prior art, when the piston rod is ground, the piston rod needs to be clamped for the second time, the precision is not easy to control, and the working efficiency is low. The device comprises a first tip, a solid piston rod and a second tip, a first through hole is formed in one side of the outer wall of the solid piston rod, and a second through hole is formed in the other side of the outer wall of the solid piston rod; the outer wall of the first tip is sleeved with a grinding machine deflector rod, and the outer wall of the solid piston rod is detachably connected with a connecting block on one side of the grinding machine deflector rod. Grinding can be achieved through one-time clamping, secondary clamping is avoided, references of the first through hole and the second through hole of the solid piston rod are not affected, the next procedure of the references is not affected, secondary reference maintenance is avoided, the precision of the solid piston rod in the grinding process is guaranteed, working efficiency is improved, and practicability of the solid piston rod grinding device is guaranteed.

Description

Technical Field

[0001] This utility model relates to a solid piston rod grinding fixture, belonging to the field of piston rod processing technology. Background Technology

[0002] Hydraulic cylinders, common components in hydraulic systems, are actuators that convert hydraulic energy into mechanical energy, performing linear reciprocating motion. Due to the absence of transmission backlash and smooth operation, they are widely used in various hydraulic equipment (construction machinery, ships, automobiles, etc.). In specific working conditions, such as in tunnel boring machines and excavators, where rock drilling is sometimes required, hydraulic cylinders not only operate under vibration but also for extended periods. Equipment operating in such conditions generally requires a very long service life, as the losses in manpower and time due to downtime for maintenance are incalculable. The piston rod, as a crucial component of the cylinder, bears enormous loads, and its dimensional and positional accuracy directly affects the cylinder's quality and lifespan.

[0003] As an important component of hydraulic cylinders, solid piston rods are typically ground using existing grinding fixtures. This process usually requires fixing the piston rod, grinding one end, then re-fixing the piston rod and grinding the other end. This necessitates a second clamping of the piston rod, which results in poor precision control and low work efficiency, thus affecting the practicality of the grinding fixture. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a solid piston rod grinding fixture. This solves the problem that when grinding piston rods, the existing grinding fixtures usually need to fix the piston rod first, grind one end, then re-fix the piston rod and grind the other end. This requires a second clamping of the piston rod, which results in poor accuracy control and low work efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:

[0006] This utility model provides a solid piston rod grinding fixture, including a first center, a solid piston rod and a second center. A first through hole for placing the first center is opened on one side of the outer wall of the solid piston rod, and a second through hole for placing the second center is opened on the other side of the outer wall of the solid piston rod.

[0007] The outer wall of the first tip is fitted with a grinding machine lever, and the outer wall of the solid piston rod is detachably connected to a connecting block on one side of the grinding machine lever. The connecting block is detachably connected to the grinding machine lever, and the first tip is used to pass through the connecting block and contact the first through hole.

[0008] Furthermore, when the first tip is located in the first through hole and the second tip is located in the second through hole, the first tip, the second tip, and the solid piston rod are arranged coaxially.

[0009] Furthermore, a cavity is formed on the outer wall of the connecting block near the grinding machine lever.

[0010] Furthermore, the solid piston rod is detachably connected to the connecting block by a fixing screw located inside the cavity.

[0011] Furthermore, the outer wall of the solid piston rod is provided with a threaded hole that matches the fixing screw.

[0012] Furthermore, a third through hole is provided on one side of the first through hole in the inner wall of the cavity, and the third through hole is located on the outer side of the first tip.

[0013] Furthermore, the grinding machine lever and the connecting block are detachably connected by lever screws.

[0014] Furthermore, both the grinding machine lever and the connecting block are threadedly connected to the lever screw.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0016] This solid piston rod grinding fixture allows for grinding in a single setup, avoiding secondary setups. It does not affect the datum of the first and second through holes in the solid piston rod, nor does it affect the next process based on these datums, thus avoiding secondary datum maintenance. This ensures the accuracy of the solid piston rod during grinding and improves work efficiency, guaranteeing the practicality of this application. The fixture has a simple structure, is easy to manufacture, and is relatively inexpensive compared to batch processing, reducing process costs. It is also easy to install and operate, saving time and effort, and can be reused permanently until scrap, ensuring the economic efficiency of this application. Optionally, both the first and second centers are mounted on a grinding machine. Attached Figure Description

[0017] Figure 1 This is a front view cross-sectional schematic diagram of a solid piston rod grinding fixture provided according to an embodiment of the present utility model.

[0018] In the diagram: 1. First center; 2. Grinding machine lever; 3. Lever screw; 4. Connecting block; 5. Solid piston rod; 6. Second center; 7. Fixing screw; 8. Cavity; 9. Third through hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 As shown, this utility model provides a solid piston rod grinding fixture, including a first center 1, a solid piston rod 5, and a second center 6. A first through hole for placing the first center 1 is opened on one side of the outer wall of the solid piston rod 5, and a second through hole for placing the second center 6 is opened on the other side of the outer wall of the solid piston rod 5. A grinding machine lever 2 is sleeved on the outer wall of the first center 1. A connecting block 4 is detachably connected to the outer wall of the solid piston rod 5 on one side of the grinding machine lever 2. The connecting block 4 is detachably connected to the grinding machine lever 2. The first center 1 is used to pass through the connecting block 4 and contact the first through hole.

[0023] Specifically, when grinding the solid piston rod 5, firstly, the connecting block 4 is installed on one side of the solid piston rod 5. Then, the first center 1 is placed into the first through hole, and the second center 6 is placed into the second through hole, thereby positioning the solid piston rod 5. The grinding machine lever 2 is sleeved on the outside of the first center 1. After fixing the grinding machine lever 2 to the connecting block 4, the first center 1 can be rotated to drive the grinding machine lever 2, the connecting block 4, and the solid piston rod 5 to rotate. At this time, none of the structures used to fix the solid piston rod 5 are located on the outside of the solid piston rod 5, and the grinding tool can be used to grind the solid piston rod 5. The outer side is subjected to full-body grinding, which can be performed in one clamping, avoiding secondary clamping. It does not affect the datum of the first and second through holes of the solid piston rod 5, nor does it affect the next process of the datum. It avoids secondary maintenance of the datum, ensures the accuracy of the solid piston rod 5 during grinding, and improves work efficiency, thus ensuring the practicality of this application. The structure of this application is simple and easy to manufacture. The tooling is relatively cheaper than batch processing, reducing process costs. At the same time, it is easy to install and operate, saving time and effort. It can be reused permanently until scrap, ensuring the economic efficiency of this application. Optionally, the first center 1 and the second center 6 are both set on the grinding machine.

[0024] In one embodiment, when the first tip 1 is located in the first through hole and the second tip 6 is located in the second through hole, the first tip 1, the second tip 6 and the solid piston rod 5 are arranged coaxially, that is, the first through hole and the second through hole are both the center holes of the solid piston rod 5, which ensures the stability of the solid piston rod 5 during the grinding process.

[0025] In one embodiment, a cavity 8 is formed on the outer wall of the connecting block 4 near the grinding machine lever 2. The solid piston rod 5 is detachably connected to the connecting block 4 by a fixing screw 7. The fixing screw 7 is located inside the cavity 8, and a threaded hole matching the fixing screw 7 is formed on the outer wall of the solid piston rod 5.

[0026] Specifically, the cavity 8 is used to install the fixing screw 7. When the grinding machine lever 2 drives the connecting block 4 to rotate, the fixing screw 7 ensures the stability of the connection between the connecting block 4 and the solid piston rod 5, ensuring that the solid piston rod 5 can rotate with the connecting block 4, thus guaranteeing the stability of the solid piston rod 5 during grinding. During installation, the positions of the connecting block 4 and the solid piston rod 5 are aligned so that the fixing screw 7 is located on one side of the threaded hole, and the fixing screw 7 is rotated into the threaded hole. Optionally, the inner wall of the cavity 8 is provided with a through groove for the fixing screw 7 to pass through. At the same time, the fixing screw 7 fixes the connecting block 4 and the solid piston rod 5, so that the device can fix solid piston rods 5 of different diameters, so as to facilitate the grinding of solid piston rods 5 of different diameters, ensuring the applicability of this application.

[0027] In one embodiment, a third through hole 9 is provided on the inner wall of the cavity 8 on one side of the first through hole. The third through hole 9 is located outside the first tip 1 and is used to avoid affecting the connection between the first tip 1 and the solid piston rod 5.

[0028] In one embodiment, the grinding machine lever 2 and the connecting block 4 are detachably connected by lever screw 3, and both the grinding machine lever 2 and the connecting block 4 are threadedly connected to the lever screw 3.

[0029] In use, the lever screw 3 is installed between the connecting block 4 and the grinding machine lever 2, so that the grinding machine lever 2 can drive the connecting block 4 to move through the lever screw 3. At the same time, both the grinding machine lever 2 and the connecting block 4 are threadedly connected to the lever screw 3, so that the lever screw 3 can fix the relative position of the grinding machine lever 2 and the connecting block 4, further ensuring the stability of the structure of this application.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A fixture for grinding a solid piston rod throughout, characterized in that, It includes a first tip (1), a solid piston rod (5), and a second tip (6). The solid piston rod (5) has a first through hole on one side of its outer wall for placing the first tip (1), and a second through hole on the other side of its outer wall for placing the second tip (6). The outer wall of the first tip (1) is fitted with a grinding machine lever (2). The outer wall of the solid piston rod (5) is detachably connected to a connecting block (4) on one side of the grinding machine lever (2). The connecting block (4) is detachably connected to the grinding machine lever (2). The first tip (1) is used to pass through the connecting block (4) and contact the first through hole.

2. The solid piston rod grinding fixture according to claim 1, characterized in that, When the first tip (1) is located in the first through hole and the second tip (6) is located in the second through hole, the first tip (1), the second tip (6) and the solid piston rod (5) are arranged coaxially.

3. The solid piston rod grinding fixture according to claim 1, characterized in that, The outer wall of the connecting block (4) has a cavity (8) on the side near the grinding machine lever (2).

4. The solid piston rod grinding fixture according to claim 3, characterized in that, The solid piston rod (5) is detachably connected to the connecting block (4) by a fixing screw (7), which is located inside the cavity (8).

5. A solid piston rod grinding fixture according to claim 4, characterized in that, The solid piston rod (5) has a threaded hole on its outer wall that matches the fixing screw (7).

6. A solid piston rod grinding fixture according to claim 3, characterized in that, The inner wall of the cavity (8) has a third through hole (9) on one side of the first through hole, and the third through hole (9) is located outside the first tip (1).

7. A solid piston rod grinding fixture according to claim 1, characterized in that, The grinding machine lever (2) and the connecting block (4) are detachably connected by lever screws (3).

8. A solid piston rod grinding fixture according to claim 7, characterized in that, Both the grinding machine lever (2) and the connecting block (4) are threadedly connected to the lever screw (3).

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