Polishing device for electrostatic spraying of vehicle frame

Abstract

The utility model discloses a polishing device for electrostatic spraying of a vehicle frame, which comprises a telescopic piece, the telescopic piece comprises a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are connected in a pluggable limiting manner, the length can be adjusted through an adjusting assembly, and one end of the first connecting rod is provided with a group of rotatable driven wheels; the length of the telescopic part formed by the first connecting rod and the second connecting rod can be adjusted through the adjusting assembly, when the abrasive belt is installed, the distance is shortened, the abrasive belt can be conveniently installed, the abrasive belt can be conveniently installed, and the abrasive belt can be conveniently and rapidly installed. Compared with the prior art, when the abrasive belt is replaced or installed, an operator does not need to spend a large amount of time and energy to adjust the distance between the belt wheels, the working efficiency is improved, and the operation difficulty and complexity are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding devices, specifically a grinding device for electrostatic spraying of vehicle frames. Background Technology

[0002] In the pretreatment process before electrostatic spraying of the vehicle frame, the belt sander is a highly efficient and precise sanding tool, which is widely used to remove impurities such as rust, oil stains, and old coatings from the surface of the frame, providing a clean, flat and well-adhesive base for subsequent electrostatic spraying. The working principle of the belt sander is usually that the motor drives the pulley to rotate, which in turn drives the sanding belt sleeved on the outside of the pulley to rotate, and uses the grinding action of the sanding belt to finely polish the surface of the frame.

[0003] However, in practical applications, existing belt sanders have some technical difficulties in adjusting the pulley spacing. Specifically, in the design of many belt sanders, the spacing between the two sets of pulleys is often fixed or very cumbersome to adjust. This design deficiency means that when replacing or installing sanding belts, operators need to spend a lot of time and effort to adjust the pulley spacing, which not only reduces work efficiency but also increases the difficulty and complexity of operation. To address this, we propose a sanding device for electrostatic spraying of vehicle frames. Utility Model Content

[0004] The purpose of this invention is to provide a grinding device for electrostatic spraying of vehicle frames, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding device for electrostatic spraying of vehicle frames, comprising a telescopic component, the telescopic component comprising a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod being plugged into and limitedly connected, and the length being adjustable by an adjusting component, a set of rotatable driven wheels being installed at one end of the first connecting rod, and a set of rotatable driving wheels being installed at one end of the second connecting rod, the driving wheels being rotated by a driving component, and the driven wheels and the driving wheels being connected to a sanding belt drive.

[0006] Preferably, the adjustment assembly includes a first motor and a cam, the second link is mounted on the first motor, the output end of the first motor is connected to the cam, and the cam can push the first link to move.

[0007] Preferably, a limiting block is installed at one end of the first connecting rod that is inserted into the second connecting rod. The limiting block can slide along the first limiting groove opened in the second connecting rod, and the first connecting rod is provided with a reset structure.

[0008] Preferably, the reset structure includes a second limiting groove and a spring. The second limiting groove is formed at one end of the first connecting rod inserted into the second connecting rod. Two sets of the springs are installed in the inner cavity of the second limiting groove, and the springs are connected to the second connecting rod.

[0009] Preferably, a connecting seat is integrally formed on the side of the second connecting rod away from the end of the first connecting rod, and a handle is installed on the outside of the connecting seat. The end of the handle near the connecting seat is connected to the driving component, and the driving component is a second motor. The output end of the second motor is connected to the drive wheel.

[0010] Preferably, a protective shell is installed on one side of the second connecting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a drive component to rotate the drive wheel. Due to the friction between the sanding belt and the drive wheel, the rotation of the drive wheel will cause the sanding belt to move together. The sanding belt will push the driven wheel to start rotating. Under the drive of the drive wheel, the sanding belt moves along a predetermined path (usually a circular path around the two pulleys) to grind the frame. The length of the telescopic component formed by the first and second connecting rods can be adjusted using the adjustment component. When installing the sanding belt, the gap can be reduced to facilitate the installation. After installation, it can be reset to form a stable transmission structure. Compared with the prior art, when replacing or installing the sanding belt, the operator does not need to spend a lot of time and effort to adjust the pulley gap, which improves work efficiency and reduces the difficulty and complexity of operation.

[0013] 2. This utility model can drive the cam to rotate by starting the first motor. When the trough of the cam contacts the limit block, the tension of the spring can drive the first connecting rod to reset, which can shorten the length of the telescopic component. Conversely, when the cam rotates, it pushes the limit block to slide along the first limit groove, so that the peak of the cam contacts the limit block. At this time, the length of the telescopic component formed by the first connecting rod and the second connecting rod is the longest, which can tension the sanding belt. This not only facilitates the installation of the sanding belt, but also makes the transmission structure run more stably.

[0014] 3. This utility model utilizes an integrally molded connecting seat, leaving a position for installing a handle. The handle can be installed to hold the device. By starting the second motor, the drive wheel can be driven to rotate, thereby making the transmission structure run and allowing the frame to be polished. Attached Figure Description

[0015] Figure 1 This is an anatomical view of the overall structure of this utility model;

[0016] Figure 2 This is an enlarged view of section A of the structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of this utility model.

[0019] In the diagram: 1. First connecting rod, 2. Second connecting rod, 3. Driven wheel, 4. Driving wheel, 5. Sanding belt, 6. First motor, 7. Cam, 8. Limiting block, 9. First limiting groove, 10. Second limiting groove, 11. Spring, 12. Connecting seat, 13. Handle, 14. Second motor, 15. Protective shell. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Please refer to Figure 1-4 As shown, this utility model provides a grinding device for electrostatic spraying of vehicle frames, including a telescopic component. The telescopic component includes a first connecting rod 1 and a second connecting rod 2. The first connecting rod 1 and the second connecting rod 2 are connected by a plug-in limiting connection and their length can be adjusted by an adjustment component. A set of rotatable driven wheels 3 are installed at one end of the first connecting rod 1, and a set of rotatable driving wheels 4 are installed at one end of the second connecting rod 2. The driving wheels 4 can be rotated by a driving component. The driven wheels 3 and the driving wheels 4 are connected to the sanding belt 5 for transmission.

[0023] In this embodiment, the driving component can drive the drive wheel 4 to rotate. Due to the friction between the sanding belt 5 and the drive wheel 4, the rotation of the drive wheel 4 will drive the sanding belt 5 to move together. The sanding belt 5 will push the driven wheel 3 to start rotating. Driven by the drive wheel 4, the sanding belt 5 moves along a predetermined path, usually a circular path around the two pulleys, which can grind the frame. The length of the telescopic member formed by the first link 1 and the second link 2 can be adjusted using the adjustment component. When installing the sanding belt 5, the gap can be reduced to facilitate the installation of the sanding belt 5. After installation, it can be reset to form a stable transmission structure. Compared with the prior art, when replacing or installing the sanding belt 5, the operator does not need to spend a lot of time and effort to adjust the pulley gap, which improves work efficiency and reduces the difficulty and complexity of operation.

[0024] Please refer to Figure 1-4As shown, the adjustment assembly includes a first motor 6 and a cam 7. The first motor 6 is mounted on the second connecting rod 2. The output end of the first motor 6 is connected to the cam 7. The cam 7 can push the first connecting rod 1 to move. A limit block 8 is installed at one end of the first connecting rod 1 that is inserted into the second connecting rod 2. The limit block 8 can slide along the first limit groove 9 opened in the second connecting rod 2. The first connecting rod 1 is provided with a reset structure, which includes a second limit groove 10 and a spring 11. The second limit groove 10 is opened at one end of the first connecting rod 1 that is inserted into the second connecting rod 2. Two sets of springs 11 are installed in the inner cavity of the second limit groove 10. The springs 11 are connected to the second connecting rod 2.

[0025] In this embodiment, by starting the first motor 6, the cam 7 can be driven to rotate. When the valley point of the cam 7 contacts the limiting block 8, the tension of the spring 11 can drive the first connecting rod 1 to reset, which can shorten the length of the telescopic component. Conversely, when the cam 7 rotates, it pushes the limiting block 8 to slide along the first limiting groove 9, so that the peak point of the cam 7 contacts the limiting block 8. At this time, the length of the telescopic component formed by the first connecting rod 1 and the second connecting rod 2 is the longest, which can tension the sanding belt 5. This not only facilitates the installation of the sanding belt 5, but also makes the transmission structure run more stably.

[0026] Please refer to Figure 1-4 As shown, a connecting seat 12 is integrally formed on the side of the second link 2 away from the first link 1. A handle 13 is installed on the outside of the connecting seat 12. The end of the handle 13 near the connecting seat 12 is connected to a driving component, which is a second motor 14. The output end of the second motor 14 is connected to the drive wheel 4. A protective shell 15 is installed on one side of the second link 2.

[0027] In this embodiment, the integrally formed connecting seat 12 provides a position for installing the handle 13, which can be used to hold the device. By starting the second motor 14, the drive wheel 4 can be rotated, thereby making the transmission structure run and the frame can be polished. The protective shell 15 protects the transmission structure formed by the drive wheel 4, the driven wheel 3 and the sanding belt 5.

[0028] Working principle: First, by starting the first motor 6, the cam 7 can be driven to rotate. When the valley point of the cam 7 contacts the limit block 8, the tension of the spring 11 can drive the first connecting rod 1 to reset, which can shorten the length of the telescopic part. Conversely, when the cam 7 rotates, it pushes the limit block 8 to slide along the first limit groove 9, so that the peak point of the cam 7 contacts the limit block 8. At this time, the length of the telescopic part formed by the first connecting rod 1 and the second connecting rod 2 is the longest, which can tension the sanding belt 5. This not only facilitates the installation of the sanding belt 5, but also makes the transmission structure run more stably. The one-piece molded connecting seat 12 leaves a position for installing the handle 13, which can be used to hold the device. By starting the second motor 14, the drive wheel 4 can be driven to rotate, thereby making the transmission structure run and grinding the frame.

[0029] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding device for electrostatic spraying of vehicle frames, comprising a telescopic component, characterized in that: The telescopic component includes a first connecting rod (1) and a second connecting rod (2). The first connecting rod (1) and the second connecting rod (2) are plugged into each other and their lengths can be adjusted by an adjustment component. A set of rotatable driven wheels (3) is installed at one end of the first connecting rod (1), and a set of rotatable driving wheels (4) is installed at one end of the second connecting rod (2). The driving wheels (4) can be rotated by a driving component. The driven wheels (3) and the driving wheels (4) are connected to the sanding belt (5) for transmission.

2. The grinding device for electrostatic spraying of vehicle frames according to claim 1, characterized in that: The adjustment assembly includes a first motor (6) and a cam (7). The second link (2) is mounted on the first motor (6). The output end of the first motor (6) is connected to the cam (7). The cam (7) can push the first link (1) to move.

3. The grinding device for electrostatic spraying of vehicle frames according to claim 2, characterized in that: A limiting block (8) is installed at one end of the first connecting rod (1) inserted into the second connecting rod (2). The limiting block (8) can slide along the first limiting groove (9) opened in the second connecting rod (2). The first connecting rod (1) is provided with a reset structure.

4. The grinding device for electrostatic spraying of vehicle frames according to claim 3, characterized in that: The reset structure includes a second limiting groove (10) and a spring (11). The first connecting rod (1) is inserted into one end of the second connecting rod (2) and the second limiting groove (10) is opened. Two sets of springs (11) are installed in the inner cavity of the second limiting groove (10) and the springs (11) are connected to the second connecting rod (2).

5. A grinding device for electrostatic spraying of vehicle frames according to claim 1, characterized in that: The second link (2) has a connecting seat (12) integrally formed on the side away from the first link (1). A handle (13) is installed on the outside of the connecting seat (12). The end of the handle (13) near the connecting seat (12) is connected to the driving member. The driving member is a second motor (14). The output end of the second motor (14) is connected to the drive wheel (4).

6. The grinding device for electrostatic spraying of vehicle frames according to claim 5, characterized in that: A protective shell (15) is installed on one side of the second link (2).

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