Polishing device for machining shock absorber for rail transit

Abstract

The utility model discloses a rail transit shock absorber machining polishing device which comprises a polishing base, a driving base is installed on the surface of the polishing base, a polishing disc is movably installed on the surface of the driving base, meanwhile, a polishing block is installed on the surface of the polishing disc in a threaded connection mode, and a positioning block is fixedly installed at the bottom of the polishing block. The end surface of the grinding disc is fixedly connected with an output shaft of the variable frequency motor, and a front end cover on the variable frequency motor is installed on the surface of the installation base in a threaded connection mode. According to the grinding device for machining the shock absorber for the rail transit, the variable frequency motor drives the grinding disc to rotate slowly, the grinding blocks are arranged on the surface of the grinding disc, and when the grinding blocks rotate, the grinding blocks can conduct reciprocating and uniform grinding work on the end position of the shock absorber, so that when the shock absorber is ground, the grinding efficiency is improved; the grinding force is guaranteed to be uniform and consistent, and the situation that due to excessive grinding, pits appear on the surface of the shock absorber, and the original size precision and shape precision of the shock absorber are damaged can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber processing equipment, specifically a grinding device for processing shock absorbers for rail transit. Background Technology

[0002] Grinding devices are used in the processing of rail transit shock absorbers because machining marks need to be removed. After machining such as turning and milling, the surface of the shock absorber will have cutting marks left by the tool. These marks will increase the surface roughness. For example, when turning the outer diameter, the feed motion of the tool will leave spiral patterns on the surface of the workpiece. Grinding can effectively remove these patterns, making the surface smoother and reducing the surface roughness value. This is very important for shock absorbers because a smooth surface can reduce stress concentration. During the operation of rail transit vehicles, shock absorbers are subjected to complex dynamic loads. If there are stress concentration points caused by machining marks on the surface, fatigue cracks are likely to occur in these areas, which will affect the service life of the shock absorber.

[0003] When using a grinding device to grind the shock absorber, or when using a manual grinding device to grind the surface of the shock absorber, it is easy to over-grind, resulting in pits on the surface of the shock absorber and damaging its original dimensional and shape accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for processing shock absorbers for rail transit, so as to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, a grinding device for processing shock absorbers for rail transit is provided, comprising a grinding base, a drive base mounted on the surface of the grinding base, a grinding disc movably mounted on the surface of the drive base, a grinding block screwed onto the surface of the grinding disc, a positioning block fixedly mounted on the bottom of the grinding block, an end surface of the grinding disc fixedly connected to the output shaft of a variable frequency motor, a front end cover of the variable frequency motor screwed onto the surface of the mounting base, a bottom of the mounting base fixedly connected to the drive base, and a bottom surface of the mounting base fixedly connected to the piston rod of a cylinder.

[0006] Preferably, the bottom sides of the grinding base are fixedly installed with support seats, and the cross-section of the support seats is "L" shaped. At the same time, two sets of slots are evenly opened at the bottom of the two sets of support seats.

[0007] Preferably, sliders are fixedly installed on both sides of the bottom of the drive seat, and slide rails are installed on both sides of the surface of the grinding seat. The slide rails are adapted to the size of the sliders, and the sliders are slidably disposed inside the slide rails.

[0008] Preferably, the drive seat has a transverse movement structure on the surface of the grinding seat, and the slider at the bottom of the drive seat has an "I" shaped cross section.

[0009] Preferably, the grinding disc has a rotating structure on the surface of the drive seat, and the grinding disc is arranged in an "L" shape. The grinding disc is driven to rotate by a variable frequency motor.

[0010] Preferably, the surface of the grinding disc is provided with a positioning groove, and a positioning block is fixedly installed at the bottom of the grinding block. The positioning block is adapted to the size of the positioning groove, and the positioning block is inserted into the inside of the positioning groove. The cross-section of the positioning block and the positioning groove are both dovetail shaped. The positioning block is inserted into the inside of the positioning groove and connected by two sets of fixing bolts.

[0011] Preferably, a support block is fixedly installed at the bottom of the cylinder, and an extension plate is fixedly installed at the bottom of the support block. At the same time, the end of the extension plate is fixedly connected to the grinding seat, and the support block is Y-shaped.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a variable frequency motor to drive the grinding disc to rotate slowly. The surface of the grinding disc is provided with grinding blocks. When the grinding blocks rotate, they can perform reciprocating and uniform grinding work on the end position of the shock absorber. This ensures that the grinding force is uniform throughout the grinding process, avoiding over-grinding that could cause pits on the surface of the shock absorber and damage its original dimensional and shape accuracy.

[0014] 2. This utility model uses the output shaft of the cylinder to drive the drive seat and the mounting seat to move laterally. At this time, sliders are fixedly installed on both sides of the bottom of the drive seat. The sliders are slidably set inside the slide rail, which can limit and guide the drive seat to move laterally, and prevent the drive seat from tilting during the lateral movement. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A bottom view;

[0018] Figure 3 for Figure 1 Top view;

[0019] Figure 4 for Figure 1 Rear view.

[0020] The following are the labels in the diagram: 1. Grinding base; 2. Support base; 3. Slide rail; 4. Drive base; 5. Slider; 6. Grinding disc; 7. Positioning groove; 8. Positioning block; 9. Grinding block; 10. Mounting base; 11. Variable frequency motor; 12. Cylinder; 13. Support block; 14. Extension plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] Please see Figure 1-4 This utility model provides a grinding device for processing shock absorbers for rail transit, including a grinding base 1, a drive base 4 mounted on the surface of the grinding base 1, a grinding disc 6 movably mounted on the surface of the drive base 4, a grinding block 9 screwed onto the surface of the grinding disc 6, and a positioning block 8 fixedly mounted on the bottom of the grinding block 9. The end surface of the grinding disc 6 is fixedly connected to the output shaft of a variable frequency motor 11, and the front end cover of the variable frequency motor 11 is screwed onto the surface of a mounting base 10. The bottom of the mounting base 10 is fixedly connected to the drive base 4, and the bottom surface of the mounting base 10 is fixedly connected to the piston rod of a cylinder 12.

[0026] Working principle: The damping cylinder of the shock absorber to be ground is fixed on a CNC machine tool using a fixture and clamped by a clamping device. The shock absorber rotates, and its end is ground by grinding blocks 9 mounted on the grinding disc 6. Specifically, the variable frequency motor 11 drives the grinding disc 6 to rotate slowly. The grinding blocks 9 are mounted on the surface of the grinding disc 6. As the grinding blocks 9 rotate, they reciprocate and evenly grind the end of the shock absorber, ensuring consistent grinding force during the grinding process. The surface is uniform and consistent, which can avoid over-grinding, which could cause pits on the surface of the shock absorber and damage its original dimensional and shape accuracy. The grinding position of the grinding disc 6 can be adjusted. Specifically, the external switch of the cylinder 12 is activated, and the output shaft of the cylinder 12 drives the drive seat 4 and the mounting seat 10 to move laterally. At this time, sliders 5 are fixedly installed on both sides of the bottom of the drive seat 4. The sliders 5 are slidably set inside the slide rail 3, which can limit and guide the lateral movement of the drive seat 4 and prevent the drive seat 4 from tilting during lateral movement.

[0027] As a preferred embodiment, support seats 2 are fixedly installed on both sides of the bottom of the grinding seat 1, and the cross section of the support seats 2 is "L" shaped. At the same time, two sets of slots are evenly opened on the bottom of the two sets of support seats 2.

[0028] Slider 5 is fixedly installed on both sides of the bottom of the drive seat 4, and slide rail 3 is installed on both sides of the surface of the grinding seat 1. The slide rail 3 and the slider 5 are matched in size, and the slider 5 is slidably disposed inside the slide rail 3.

[0029] The drive seat 4 has a transverse movement structure on the surface of the grinding seat 1, and the slider 5 at the bottom of the drive seat 4 has an "I" shaped cross section.

[0030] In a preferred embodiment, the grinding disc 6 has a rotating structure on the surface of the drive seat 4, and the grinding disc 6 is arranged in an "L" shape. At the same time, the grinding disc 6 is driven to rotate by a variable frequency motor 11.

[0031] In a preferred embodiment, the surface of the grinding disc 6 is provided with a positioning groove 7, and a positioning block 8 is fixedly installed at the bottom of the grinding block 9. The positioning block 8 is adapted to the size of the positioning groove 7, and the positioning block 8 is inserted into the interior of the positioning groove 7. The cross-sections of the positioning block 8 and the positioning groove 7 are both dovetail shaped. The positioning block 8 is inserted into the interior of the positioning groove 7 and connected by two sets of fixing bolts.

[0032] A support block 13 is fixedly installed at the bottom of the cylinder 12, and an extension plate 14 is fixedly installed at the bottom of the support block 13. At the same time, the end of the extension plate 14 is fixedly connected to the grinding seat 1. The support block 13 is Y-shaped.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A grinding device for processing shock absorbers for rail transit, comprising a grinding base (1), characterized in that: The surface of the grinding seat (1) is equipped with a drive seat (4), and a grinding disc (6) is movably mounted on the surface of the drive seat (4). At the same time, a grinding block (9) is screwed onto the surface of the grinding disc (6), and a positioning block (8) is fixedly mounted on the bottom of the grinding block (9). The end surface of the grinding disc (6) is fixedly connected to the output shaft of the variable frequency motor (11), and the front end cover of the variable frequency motor (11) is screwed onto the surface of the mounting seat (10). At the same time, the bottom of the mounting seat (10) is fixedly connected to the drive seat (4), and the bottom of the mounting seat (10) is fixedly connected to the piston rod of the cylinder (12).

2. The grinding device for processing shock absorbers for rail transit according to claim 1, characterized in that: The grinding base (1) has a support base (2) fixedly installed on both sides of its bottom, and the support base (2) has an "L" shaped cross section. At the same time, two sets of slots are evenly opened at the bottom of the two sets of support bases (2).

3. A grinding device for processing shock absorbers for rail transit according to claim 1, characterized in that: The drive seat (4) has sliders (5) fixedly installed on both sides of its bottom, and the grinding seat (1) has slide rails (3) installed on both sides of its surface. The slide rails (3) and sliders (5) are matched in size, and the sliders (5) are slidably disposed inside the slide rails (3).

4. A grinding device for processing shock absorbers for rail transit according to claim 3, characterized in that: The drive seat (4) has a transverse movement structure on the surface of the grinding seat (1), and the slider (5) at the bottom of the drive seat (4) has an "I" shaped cross section.

5. A grinding device for processing shock absorbers for rail transit according to claim 1, characterized in that: The grinding disc (6) has a rotating structure on the surface of the drive seat (4), and the grinding disc (6) is set in an "L" shape. At the same time, the grinding disc (6) is driven to rotate by a variable frequency motor (11).

6. A grinding device for processing shock absorbers for rail transit according to claim 1, characterized in that: The surface of the grinding disc (6) is provided with a positioning groove (7), and a positioning block (8) is fixedly installed at the bottom of the grinding block (9). The positioning block (8) and the positioning groove (7) are matched in size, and the positioning block (8) is inserted into the inside of the positioning groove (7). The cross-sections of the positioning block (8) and the positioning groove (7) are both set in a dovetail shape. The positioning block (8) is inserted into the inside of the positioning groove (7) and connected by two sets of fixing bolts.

7. A grinding device for processing shock absorbers for rail transit according to claim 1, characterized in that: A support block (13) is fixedly installed at the bottom of the cylinder (12), and an extension plate (14) is fixedly installed at the bottom of the support block (13). At the same time, the end of the extension plate (14) is fixedly connected to the grinding seat (1). The support block (13) is Y-shaped.

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