Shaft sleeve polishing device

Abstract

The utility model relates to the technical field of polishing devices, and discloses a shaft sleeve polishing device which comprises a clamping mechanism arranged on the upper surface of a workbench and a scrap cleaning assembly located below the clamping mechanism. The scrap cleaning assembly comprises a collecting box fixedly connected with the lower surface of the workbench, a through hole is formed in the workbench, the collecting box right faces the through hole and communicates with the through hole, a first partition plate and a second partition plate are sequentially arranged in the collecting box from top to bottom, and an exhaust fan communicating with the collecting box is arranged on the side wall of the collecting box. Through the arrangement of the first partition plate and the second partition plate, an airflow path is increased, airflow is more stable, the included angle between the first partition plate and the side wall of the collecting box forms a scrap collecting groove, on one hand, scraps drifting all around are collected in a centralized mode, and influences on parts and electronic components are prevented; and on the other hand, the situation that a large number of chippings enter the exhaust fan along with airflow, and consequently the exhaust fan is damaged is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding devices, and in particular relates to a shaft sleeve grinding device. Background Art

[0002] The sleeve is a tubular or annular metal part that is mounted on the rotating shaft for support and positioning. In order to improve the smoothness of the connection and reduce friction loss during subsequent operation, the sleeve needs to be polished.

[0003] Patent CN116276365A discloses a sleeve surface grinding device, comprising a base, an upper surface of which is provided with three clamping blocks arranged in a circular array, the clamping blocks being located outside a curved plate, and a clamping mechanism being provided on the upper surface of the base for driving the three clamping blocks to simultaneously move toward the side of the curved plate to clamp and secure the sleeve to be ground. The advantage of the device is that, by providing the clamping mechanism, the three clamping blocks are driven simultaneously toward the side of the curved plate to clamp and secure the sleeve to be ground, facilitating subsequent grinding work. However, the device also has the following disadvantages: on the one hand, the clamping mechanism has a complex structure, the contact area between the clamping blocks and the sleeve is small, and during the grinding process, the sleeve has a tendency to rotate under the action of the grinding roller, which makes it easy for the sleeve and the clamping blocks to slip, thereby affecting the grinding effect; on the other hand, the grinding device lacks a debris cleaning component, and debris generated during the grinding process can also float around and adhere to the grinding device, or even enter the interior of the device, affecting metal parts and electronic components, reducing grinding accuracy, and even damaging the device. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a shaft sleeve grinding device to solve the technical problem in the prior art that debris formed by grinding flies around and enters the interior of the device, affecting parts and electronic components.

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

[0006] A sleeve grinding device comprises a clamping mechanism arranged on the upper surface of a workbench and a debris cleaning assembly located below the clamping mechanism; the debris cleaning assembly comprises a collection box fixedly connected to the lower surface of the workbench, a through hole is opened on the workbench, the through hole is located at the fixed position of the sleeve, the collection box is opposite to the through hole and the collection box is connected to the through hole, a first partition plate and a second partition plate are sequentially arranged in the collection box from top to bottom, the first partition plate is in the shape of a prism, the middle part of which is upwardly protruding, and a plurality of air holes are opened at the protruding part, the second partition plate is in the shape of a flat plate, and a flow channel is opened on the side of the second partition plate away from the clamping mechanism, an exhaust fan connected to the collection box is provided on the side wall of the collection box, the exhaust fan is located below the second partition plate, and the exhaust fan is located on the side opposite to the flow channel, and blocks and filters are sequentially arranged between the exhaust fan and the flow channel along the airflow direction.

[0007] Furthermore, a gap is left between the stopper and the filter screen, wherein the filter screen partitions the space below the second partition plate, and the stopper is in the shape of an obtuse triangle, and its height is less than the height of the filter screen;

[0008] Furthermore, a ash cleaning port is provided on the side wall of the collection box opposite to the stopper, and a baffle is detachably connected to the ash cleaning port;

[0009] Furthermore, the clamping mechanism includes a pad, a limiting frame is provided on one side of the pad, the limiting frame is open on the side away from the pad, a fixing block is provided at the opening, and the heights of the pad, the limiting frame and the fixing block gradually increase;

[0010] Furthermore, a sliding block is provided in the limit frame, and its height is consistent with the height of the limit frame. A connecting rod is provided on the back of the sliding block, and the connecting rod is perpendicular to the sliding block. The inner end of the connecting rod is fixed to the back of the sliding block, and the outer end of the connecting rod passes through the fixed block and is exposed.

[0011] Furthermore, a clamping arm is provided at both ends of the cushion block, and the middle position of the clamping arm is rotatably connected to the cushion block through a rotating shaft. The clamping arm is divided into a clamping section and a connecting section with the rotating shaft as the dividing point. The clamping section is in the shape of an arc with an opening inward, and the connecting section is in the shape of a long strip and expands outward. A transmission rod is provided between the connecting section of the clamping arm and the sliding block, one end of the transmission rod is rotatably connected to the end of the connecting section of the clamping arm, and the other end of the transmission rod is rotatably connected to the top surface of the sliding block.

[0012] Furthermore, a receiving groove is provided on the inner side of the clamping section. The receiving groove extends along with the clamping section and the depth of the receiving groove remains unchanged. A rubber layer is provided in the receiving groove and is exposed on the inner side of the clamping section.

[0013] The beneficial effects of the present invention are:

[0014] (1) Compared with the prior art, the arrangement of the first partition plate and the second partition plate increases the airflow path, making the airflow more stable. In addition, the angle between the first partition plate and the side wall of the collection box forms a debris collection trough. On the one hand, the debris floating around is collected in a centralized manner to prevent it from affecting parts and electronic components, reducing the grinding accuracy and even damaging the device. On the other hand, a large amount of debris is prevented from entering the exhaust fan with the airflow, causing damage to the exhaust fan.

[0015] (2) Through the setting of the filter, debris in the airflow can be filtered to prevent the debris from entering the exhaust fan. The surface of the block facing the filter is an inclined surface, thereby avoiding obstruction of the airflow. The surface of the block facing away from the filter is also an inclined surface, which can block the debris and further collect it;

[0016] (3) The shaft sleeve is clamped together by two arc-shaped clamping sections arranged opposite to each other. The two have a large contact area, which can effectively prevent the shaft sleeve from rotating under the driving action of the grinding roller. In addition, the entire clamping mechanism has a simple structure, which is easy to use and maintain later. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of the shaft sleeve grinding device in Example 1 of the present utility model;

[0019] Figure 2 for Figure 1 A magnified view of point A1 in the middle;

[0020] Figure 3 This is a cross-sectional view of the clamping arm in Example 1 of the present utility model;

[0021] Figure 4 This is a schematic diagram of the debris cleaning assembly in the first embodiment of the present invention.

[0022] The following are marked in the accompanying drawings:

[0023] Workbench 1, through hole 11, clamping mechanism 2, pad 201, limit frame 202, fixed block 203, sliding block 204, connecting rod 205, electric cylinder 206, clamping arm 207, transmission rod 208, accommodating groove 209, rubber layer 210, debris cleaning assembly 3, collection box 31, first partition plate 32, second partition plate 33, flow channel 331, exhaust fan 34, filter screen 35, block 36, dust cleaning port 37, baffle 38. DETAILED DESCRIPTION

[0024] Example 1, specifically as Figures 1-4 shown.

[0025] like Figure 1 As shown, a sleeve grinding device includes a clamping mechanism 2 arranged on the upper surface of a workbench 1 and a debris cleaning assembly 3 located below the clamping mechanism 2.

[0026] The clamping mechanism 2 includes a rectangular pad 201. In this embodiment, the extension direction of the pad 201 is consistent with the width direction of the workbench 1. The pad 201 is fixedly connected to the upper surface of the workbench 1 via screws. A rectangular limit frame 202 is provided on one side of the pad 201. The limit frame 202 is greater than the height of the pad 201. The side of the limit frame 202 facing away from the pad 201 is open, and a fixing block 203 is provided at the opening. The fixing block 203 is also rectangular and fixedly connected to the upper surface of the workbench 1 via screws. The fixing block 203 seals the opening. It should be noted that the height of the fixing block 203 is greater than the height of the limit frame 202.

[0027] A rectangular sliding block 204 is provided in the limit frame 202, and its height is consistent with the height of the limit frame 202. A horizontal connecting rod 205 is provided on the back of the sliding block 204, and the connecting rod 205 is perpendicular to the sliding block 204. The inner end of the connecting rod 205 is welded and fixed to the back of the sliding block 204, and the outer end of the connecting rod 205 passes through the fixed block 203 and is exposed. An electric cylinder 206 is provided at its outer end, and the output shaft of the electric cylinder 206 is threadedly connected and fixed to the outer end of the connecting rod 205. The sliding block 204 is driven by the electric cylinder 206 to slide toward or away from the pad 201.

[0028] A clamping arm 207 is provided at each end of the pad 201. The middle portion of the clamping arm 207 is rotatably connected to the pad 201 via a rotating shaft. The clamping arm 207 is divided into a clamping section and a connecting section, with the rotating shaft serving as the dividing point. The clamping section is in the shape of an arc with an opening facing inward, while the connecting section is elongated and flared outward. A transmission rod 208 is provided between the connecting section of the clamping arm 207 and the sliding block 204. One end of the transmission rod 208 is rotatably connected to the end of the connecting section of the clamping arm 207 via a rotating shaft. The other end of the transmission rod 208 is also rotatably connected to the top surface of the sliding block 204 via a rotating shaft. The rotational connection between the clamping arm 207 and the sliding block 204 is achieved via the transmission rod 208.

[0029] During use, the electric cylinder 206 is activated, and the sliding block 204 slides toward the pad 201 driven by the output shaft of the electric cylinder 206. The transmission rod 208 pushes the connecting section of the clamping arm 207 to rotate outward. At the same time, the clamping section of the clamping arm 207 rotates inward, and its inner side surface contacts and presses against the side surface of the sleeve, thereby limiting the rotation of the sleeve. The two relatively arranged arc-shaped clamping sections jointly clamp the sleeve, and the large contact area between the two can effectively prevent the sleeve from rotating under the action of the grinding roller. In addition, the entire clamping mechanism 2 has a simple structure, which is convenient for use and subsequent maintenance.

[0030] To further enhance the roughness of the inner surface of the clamping section and the side of the sleeve, in this embodiment, a receiving groove 209 is formed on the inner surface of the clamping section. This groove 209 extends along the clamping section and maintains a constant depth. A rubber layer 210 is bonded to the inner surface of the clamping section, and is exposed on the inner surface of the clamping section. When the sleeve is clamped, the rubber layer 210 contacts the side of the sleeve and contracts inward, deforming. This rubber layer 210 effectively increases the roughness between the inner surface of the clamping section and the sleeve, thereby increasing friction between the two and further hindering the sleeve's rotation.

[0031] During the grinding process, a large amount of metal debris is generated. The scattered debris affects parts and electronic components, reduces the grinding accuracy and even damages the device. Based on this, a debris cleaning component 3 is set below the clamping mechanism 2.

[0032] The workbench 1 has a through-hole 11 located at the shaft sleeve's fixed position. The debris cleaning assembly 3 includes a collection box 31 threadedly connected to the lower surface of the workbench 1. The collection box 31 faces the through-hole 11, and the top opening of the collection box 31 is connected to the through-hole 11. A first partition plate 32 and a second partition plate 33 are arranged in order from top to bottom within the collection box 31. The first partition plate 32 is prism-shaped, with an upwardly protruding center and multiple air holes. Support blocks are welded to the sidewalls of the collection box 31, and the first partition plate 32 rests on the support blocks for fixed support.

[0033] The second partition plate 33 is flat and welded to the sidewall of the collection box 31. A flow channel 331 is defined on the side of the second partition plate 33 facing away from the clamping mechanism 2. A fan 34 is threadedly connected to the sidewall of the collection box 31 and communicates with the collection box 31. The fan 34 is located below the second partition plate 33 and on the side opposite the flow channel 331.

[0034] During use, the grinding roller extends from top to bottom into the sleeve to grind, generating debris. The exhaust fan 34 is turned on to create negative pressure, and the debris in the sleeve flows along the through hole 11 into the collection box 31 under the action of the negative pressure. Most of the debris slides down the inclined surface of the first partition plate 32 and falls into the angle between the first partition plate 32 and the side wall of the collection box 31, thereby collecting the debris. The arrangement of the first partition plate 32 and the second partition plate 33 increases the airflow path, making the airflow more stable. The angle between the first partition plate 32 and the side wall of the collection box 31 forms a debris collection trough. On the one hand, the scattered debris is collected in a centralized manner to prevent it from affecting parts and electronic components, reducing the grinding accuracy, or even damaging the device. On the other hand, a large amount of debris is prevented from entering the exhaust fan 34 with the airflow, causing damage to the exhaust fan 34.

[0035] A block 36 and a filter 35 are arranged in sequence between the exhaust fan 34 and the flow channel 331 along the airflow direction, with a gap left between the block 36 and the filter 35, wherein the filter 35 separates the lower space of the second partition plate 33, and the block 36 is in the shape of an obtuse triangle, and its height is less than the height of the filter 35.

[0036] By setting the filter 35, debris in the airflow can be filtered to prevent the debris from entering the exhaust fan 34. The surface of the block 35 opposite to the filter 36 is an inclined surface, thereby avoiding obstruction of the airflow. The surface of the block 35 away from the filter 36 is also an inclined surface, which can block the debris and further collect it.

[0037] A ash cleaning port 37 is formed on the side wall opposite the stopper 35. A baffle 38 is threadedly connected to the ash cleaning port 37, thereby achieving a detachable connection between the two. The ash cleaning port 37 and the baffle 38 allow for timely removal of collected debris. Similarly, a ash cleaning port 37 is also formed on the side wall at the angle between the first partition plate 32 and the collection box 31. The baffle 38 is threadedly connected to the ash cleaning port 37, allowing for timely removal of debris at the angle.

[0038] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A sleeve grinding device, characterized in that: It includes a clamping mechanism arranged on the upper surface of the workbench and a debris cleaning assembly located below the clamping mechanism; the debris cleaning assembly includes a collection box fixedly connected to the lower surface of the workbench, a through hole is opened on the workbench, the through hole is located at the fixed position of the sleeve, the collection box is opposite to the through hole and the collection box is connected to the through hole, and a first partition plate and a second partition plate are sequentially arranged in the collection box from top to bottom, the first partition plate is in the shape of a prism, the middle part of which is upwardly protruding, and a plurality of air holes are opened at the protruding part, the second partition plate is in the shape of a flat plate, and a flow channel is opened on the side of the second partition plate away from the clamping mechanism, an exhaust fan connected to the collection box is provided on the side wall of the collection box, the exhaust fan is located below the second partition plate, and the exhaust fan is located on the side opposite to the flow channel, and blocks and filters are sequentially arranged between the exhaust fan and the flow channel along the airflow direction.

2. The sleeve grinding device according to claim 1, characterized in that: A gap is left between the stopper and the filter screen, wherein the filter screen separates the space below the second partition plate. The stopper is in the shape of an obtuse triangle, and its height is smaller than that of the filter screen.

3. The sleeve grinding device according to claim 2, characterized in that: A dust cleaning port is provided on a side wall of the collection box opposite to the stopper, and a baffle is detachably connected to the dust cleaning port.

4. The sleeve grinding device according to claim 3, characterized in that: The clamping mechanism includes a pad, a limiting frame is provided on one side of the pad, the limiting frame is open on the side away from the pad, a fixing block is provided at the opening, and the heights of the pad, the limiting frame and the fixing block increase gradually.

5. The sleeve grinding device according to claim 4, characterized in that: A sliding block is provided in the limit frame, and its height is consistent with that of the limit frame. A connecting rod is provided on the back of the sliding block, which is perpendicular to the sliding block. The inner end of the connecting rod is fixed to the back of the sliding block, and the outer end of the connecting rod passes through the fixed block and is exposed.

6. The shaft sleeve grinding device according to claim 5, characterized in that: A clamping arm is provided at both ends of the pad block, and the middle position of the clamping arm is rotatably connected to the pad block through a rotating shaft. The clamping arm is divided into a clamping section and a connecting section with the rotating shaft as the dividing point. The clamping section is in an arc shape with an opening facing inward, and the connecting section is in a long strip shape and expands outward; a transmission rod is provided between the connecting section of the clamping arm and the sliding block, one end of the transmission rod is rotatably connected to the end of the connecting section of the clamping arm, and the other end of the transmission rod is rotatably connected to the top surface of the sliding block.

7. The sleeve grinding device according to claim 6, characterized in that: An accommodating groove is provided on the inner side of the clamping section. The accommodating groove extends along with the clamping section and the depth of the accommodating groove remains unchanged. A rubber layer is provided in the accommodating groove and is exposed on the inner side of the clamping section.

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