Bare shell cleaning device

Abstract

The utility model is suitable for the technical field of cleaning equipment, and provides a bare shell cleaning device which comprises a three-axis machine tool, a supporting platform, a cleaning mechanism and a supporting frame body. The fixed end of the three-axis machine tool is connected with a supporting carrier plate on the supporting frame body, and the driving end of the three-axis machine tool is connected with the supporting platform; a cleaning mechanism is mounted on the supporting platform; the cleaning mechanism comprises a driving motor, a transmission assembly, a brush shaft, a dust collection box, a dust extractor and an air blower. The transmission end of the transmission assembly is in transmission connection with the driving motor; a transmission shaft of the transmission assembly is a hollow shaft; the dust collection box is connected with the supporting platform, and a box body of the dust collection box is provided with a through hole and a dust collection opening; the transmission shaft penetrates through the through hole and is connected with the brush shaft; the brush shaft is a hollow shaft; the dust extractor is communicated with the dust suction port; and the support frame body is provided with a placing platform for preventing a bare shell. The naked shell is placed on the placing platform, the inner wall of the naked shell is cleaned through movement of the three-axis machine tool, and the naked shell cleaning device has the advantage of being stable in cleaning.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning equipment, and in particular relates to a bare shell cleaning device. Background Art

[0002] The cell shell or battery shell is one of the important components of the battery. When existing manufacturers produce cell shells, they need to perform surface treatments such as insulation on the surface of the cell shell. The first step in the surface treatment is cleaning.

[0003] In the prior art, when cleaning the battery cell shell, one method is to manually wrap tape around the opening of the battery cell shell to seal the battery cell shell. This manual cleaning method is labor-intensive, and the cleaning quality is uneven and the cleaning efficiency is low. Another method is to clamp the battery cell shell with a clamping device to facilitate the cleaning of the battery cell shell by the cleaning device. When the clamping force of the clamping device is too large, the battery cell shell is easily deformed; when the clamping force of the clamping device is too small, the battery cell shell is easily loosened or even falls off, and the cleaning stability is poor. Utility Model Content

[0004] The utility model provides a bare shell cleaning device, aiming to solve the problem of poor stability in the existing cleaning method of clamping the battery shell for cleaning.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a bare shell cleaning device, comprising a three-axis machine tool, a support platform, a cleaning mechanism and a support frame; a support carrier is provided at the lower end of the support frame; the fixed end of the three-axis machine tool is connected to the support carrier, and the driving end of the three-axis machine tool is connected to the support platform; the cleaning mechanism is installed on the support platform;

[0007] The cleaning mechanism includes a driving motor, a transmission assembly, a brush shaft, a dust collection box, a dust extractor and an air blower; the driving motor is mounted on the supporting platform; the fixed end of the transmission assembly is connected to the supporting platform, and the transmission end of the transmission assembly is transmission-connected to the output shaft of the driving motor; the transmission shaft of the transmission assembly is a hollow shaft, and the lower end of the transmission shaft is connected to the air blower; the bottom end of the dust collection box is connected to the upper end of the supporting platform, and a through hole and a dust collection port are provided on the top box body; the upper end of the transmission shaft passes through the through hole and is connected to the brush shaft; the brush shaft is a hollow shaft; the dust extractor is connected to the dust collection port; a placement platform is provided at the upper end of the supporting frame; a cleaning port corresponding to the position of the brush shaft is provided on the placement platform, and the size of the cleaning port is adapted to the opening size of the bare shell.

[0008] Furthermore, the transmission assembly includes a belt, a first synchronous wheel, a plurality of second synchronous wheel assemblies and a tension wheel assembly;

[0009] The output shaft of the drive motor is connected to the first synchronous wheel; a plurality of the tensioning wheel assemblies and a plurality of evenly distributed second synchronous wheel assemblies are installed at the lower end of the support platform; the belt is connected in a clockwise direction to the first synchronous wheel, the first tensioning wheel assembly, the first second synchronous wheel assembly, the second tensioning wheel assembly, the second second synchronous wheel assembly, the Nth tensioning wheel assembly, and the Nth second synchronous wheel assembly, and the belt finally returns to the first synchronous wheel.

[0010] Furthermore, the second synchronous wheel assembly includes a second synchronous wheel, a transmission shaft, a flange and a bearing; a mounting hole is provided on the support platform; the mounting hole is sleeved on the lower end outer ring of the flange, and the end face of the middle outer ring of the flange abuts against the upper end face of the support platform; the upper and lower end inner rings of the flange are sleeved on the outer ring of the bearing, and the inner ring end face of the bearing at the lower end abuts against the shaft end face of the synchronous wheel; the transmission shaft is sleeved through the second synchronous wheel, the bearing at the lower end, the flange and the bearing at the upper end in sequence from bottom to top.

[0011] Furthermore, the cleaning mechanism further comprises a pneumatic slip ring and a joint; the lower end of the transmission shaft is connected to the pneumatic slip ring; the pneumatic slip ring is movably connected to the joint; and the joint is used to connect to the blower.

[0012] Furthermore, a dust shield is provided at the through hole position of the box body; the dust shield is a hollow structure, and the hollow diameter is larger than the diameter of the brush shaft; the dust shield is set as a conical structure, and the lower end of the dust shield is sealed with the end face of the box body.

[0013] Furthermore, the box body is designed to be an open semi-enclosed structure corresponding to the bare shell cleaning position, and the bottom surface of the box body is designed to be inclined, and the inclined lower position of the bottom surface of the box body is close to the dust suction port.

[0014] Furthermore, a dust cover is provided above the position where the box body is connected to the dust suction port.

[0015] Furthermore, the cleaning mechanism also includes a motor mounting bracket; the motor mounting bracket is fixedly mounted on the support platform; the motor mounting bracket is provided with a fixing column at a fixed connection with the drive motor; the fixed connection of the drive motor is fixedly connected to the fixing column.

[0016] Furthermore, a guide groove is provided on the placement platform; the guide groove corresponds to the position of the cleaning port; a limiting protrusion is provided on the inner wall of the guide groove; the limiting protrusion is used to limit the bare shell.

[0017] Furthermore, the three-axis machine tool comprises:

[0018] An x-axis moving module, wherein the fixed end of the x-axis moving module is connected to the support carrier, and the driving end of the x-axis moving module is provided with a z-axis support frame;

[0019] A z-axis moving module, wherein the fixed end of the z-axis moving module is connected to the z-axis support frame; and the driving end of the z-axis moving module is provided with a y-axis support frame;

[0020] A y-axis moving module, wherein the fixed end of the y-axis moving module is connected to the y-axis support frame; and the driving end of the y-axis moving module is connected to the support platform.

[0021] Beneficial effects of the utility model:

[0022] The present invention is a bare shell cleaning device that places the bare shell to be cleaned on a placement platform and requires the opening to be placed upside down. A three-axis machine tool is used to drive the brush shaft to rise so that the top of the brush on the brush shaft reaches a predetermined position on the inner bottom of the aluminum shell. At the same time, the drive motor is started to rotate the brush shaft through the transmission component. The three-axis machine tool is then used to drive the brush shaft to move along the inner wall of the bare shell. The air blower blows air into the inner cavity of the bare shell, and the dust extractor extracts dust, so that the brush of the brush shaft cleans the inner wall of the bare shell at a uniform speed and the cleaned dust is sucked into the dust extractor. After the cleaning is completed, the driving parts of the three-axis machine tool return to the middle position and wait for the next group of bare shells to be cleaned. Compared with the clamping cleaning method in the prior art, the present invention places the bare shell to be cleaned on the placement platform and cleans the inner wall of the bare shell through the movement of the three-axis machine tool. It has the advantage of stable cleaning and effectively prevents the problem of unstable cleaning during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of the bare shell cleaning device provided by the utility model;

[0024] Figure 2 This is a partial structural diagram of the bare shell cleaning device provided by the utility model;

[0025] Figure 3 It is a structural diagram of the cleaning mechanism provided by the utility model;

[0026] Figure 4 It is a structural diagram of the transmission assembly provided by the utility model;

[0027] Figure 5 It is a cross-sectional schematic diagram of the second synchronous wheel assembly provided by the utility model;

[0028] Figure 6 It is a structural schematic diagram of the placement platform provided by the utility model;

[0029] Figure 7This is a schematic structural diagram of the guide groove provided by the utility model;

[0030] Figure 8 It is a structural schematic diagram of the three-axis machine tool provided by the utility model.

[0031] Main element symbols:

[0032] 10-three-axis machine tool, 101-x-axis moving module, 102-z-axis support frame, 103-z-axis moving module, 104-y-axis support frame, 105-y-axis moving module, 106-y-axis support frame;

[0033] 20-support platform, 201-motor mounting frame;

[0034] 30-cleaning mechanism, 301-drive motor, 302-brush shaft, 303-dust box, 304-dust extractor, 305-air blower, 306-through hole, 307-dust suction port, 308-transmission assembly, 309-belt, 310-first synchronous wheel, 311-tensioning wheel assembly, 312-second synchronous wheel, 313-transmission shaft, 314-flange, 315-bearing, 316-pneumatic slip ring, 317-connector, 318-dust shield, 319-dust cover;

[0035] 40-support frame, 401-support carrier, 402-placement platform, 403-cleaning port, 404-guide groove, 405-limiting protrusion. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] The existing technology uses a clamping method to clean bare shells. However, if the clamping force of the clamping device is too strong, the bare shells are easily deformed; if the clamping force is too weak, the bare shells are easily loosened or even fall, resulting in poor cleaning stability. However, the present invention uses a placement platform and coordinates the movement of a three-axis machine tool to clean the bare shells. This stabilizes the bare shells during the cleaning process, ensuring a stable cleaning process.

[0038] Example 1

[0039] See also Figure 1 、 Figure 2 and Figure 3The utility model provides a bare shell cleaning device, comprising a three-axis machine tool, a support platform, a cleaning mechanism and a support frame; a support carrier is provided at the lower end of the support frame; the fixed end of the three-axis machine tool is connected to the support carrier, and the driving end of the three-axis machine tool is connected to the support platform; the cleaning mechanism is installed on the support platform;

[0040] The cleaning mechanism includes a driving motor, a transmission assembly, a brush shaft, a dust collection box, a dust extractor and an air blower; the driving motor is mounted on the supporting platform; the fixed end of the transmission assembly is connected to the supporting platform, and the transmission end of the transmission assembly is transmission-connected to the output shaft of the driving motor; the transmission shaft of the transmission assembly is a hollow shaft, and the lower end of the transmission shaft is connected to the air blower; the bottom end of the dust collection box is connected to the upper end of the supporting platform, and a through hole and a dust collection port are provided on the top box body; the upper end of the transmission shaft passes through the through hole and is connected to the brush shaft; the brush shaft is a hollow shaft; the dust extractor is connected to the dust collection port; a placement platform is provided at the upper end of the supporting frame; a cleaning port corresponding to the position of the brush shaft is provided on the placement platform, and the size of the cleaning port is adapted to the opening size of the bare shell.

[0041] The bare shell cleaning device of the utility model is to place the bare shell to be cleaned upside down on the placement platform, and use the three-axis machine tool to drive the brush shaft to rise, so that the top of the brush on the brush shaft reaches the predetermined position on the inner bottom of the aluminum shell, and at the same time start the drive motor to drive the brush shaft to rotate through the transmission component, and then use the three-axis machine tool to drive the brush shaft to move along the inner wall of the bare shell, as shown in the attached figure. Figure 1 As shown in the figure, an air blower is used to blow air into the inner cavity of the bare shell through a pipe, and a dust extractor is used to extract dust. The brush of the brush shaft cleans the inner wall of the bare shell at a uniform speed and draws the cleaned dust into the dust extractor. After cleaning is completed, the drive units of the three-axis machine tool return to the middle position to wait for the next group of bare shells to be cleaned. Compared with the clamping cleaning method in the prior art, this utility model places the bare shell to be cleaned on the platform, and the movement of the three-axis machine tool cleans the inner wall of the bare shell. This has the advantage of stable cleaning, which effectively prevents the problem of cleaning instability during the cleaning process.

[0042] It should be noted that the blower in this embodiment can use a battery valve to control the gas flow and the blowing pressure during the cleaning process. In other embodiments, other devices that can control the gas flow and air pressure can also be used. Such devices that control the gas flow and blowing pressure are widely used in this field, and their specific working reasons are not elaborated here.

[0043] In addition, the outer side of the shaft of the brush shaft mentioned in this embodiment is covered with soft bristles, which can easily handle dust. The brush shafts mentioned in subsequent embodiments are the same as those explained in this embodiment.

[0044] It should also be noted that the bare shell mentioned in this embodiment can be a battery shell or a cell shell, and of course it can also be a shell with an opening. The bare shells mentioned in subsequent embodiments are the same as those explained in this embodiment.

[0045] In this embodiment, the three-axis machine tool is also a processing equipment well known in the art. It has three degrees of freedom of movement and can realize the functions of up and down, left and right, and front and back movement. Therefore, it can be imagined that the three-axis machine tool can achieve complete cleaning of the inner wall of the bare shell.

[0046] Example 2

[0047] See also Figure 3 and Figure 4 , the transmission assembly of this embodiment includes a belt, a first synchronous wheel, a plurality of second synchronous wheel assemblies and a tension wheel assembly;

[0048] The output shaft of the drive motor is connected to the first synchronous wheel; the lower end of the support platform is equipped with a plurality of tensioning wheel assemblies and a plurality of evenly distributed second synchronous wheel assemblies; the belt is connected in a clockwise direction to the first synchronous wheel, the first tensioning wheel assembly, the first second synchronous wheel assembly, the second tensioning wheel assembly, the second second synchronous wheel assembly, the Nth tensioning wheel assembly, and the Nth second synchronous wheel assembly, and the belt finally returns to the first synchronous wheel;

[0049] The second synchronous wheel assembly includes a second synchronous wheel, a transmission shaft, a flange and a bearing; a mounting hole is provided on the support platform; the mounting hole is sleeved on the lower end outer ring of the flange, and the end face of the middle outer ring of the flange abuts the upper end face of the support platform; the upper and lower end inner rings of the flange are sleeved on the outer ring of the bearing, and the inner ring end face of the bearing at the lower end abuts the shaft end face of the synchronous wheel; the transmission shaft is sleeved through the second synchronous wheel, the bearing at the lower end, the flange and the bearing at the upper end in sequence from bottom to top.

[0050] In the specific implementation, the first synchronous wheel on the output shaft of the driving motor is used to drive the first synchronous wheel, the first tensioning wheel, the first second synchronous wheel, the second tensioning wheel, the second second synchronous wheel, the Nth tensioning wheel and the Nth second synchronous wheel to rotate through a belt, so that one driving end drives the rotation of multiple transmission parts (several tensioning wheels and second synchronous wheels), and then the second synchronous wheel belt drives the rotation of the transmission shaft, and the transmission shaft rotates the movable brush shaft.

[0051] In this embodiment, a tensioning pulley is connected between any two synchronous pulleys. However, the specific number of second synchronous pulleys and tensioning pulleys is not specifically limited. The corresponding synchronous pulleys can be designed according to the cleaning stations set up according to actual production needs. For example, if the number of cleaning stations is set to five in this embodiment, five second synchronous pulleys are also installed, and six tensioning pulleys are required. The use of tensioning pulleys can effectively adjust the stability of the belt transmission process. In this embodiment, through the ingenious design of the transmission component structure, the drive end of a drive motor drives the rotation of multiple drive shafts. This not only saves the drive motor's driving resources, but also realizes the synchronous cleaning of multiple bare shells, improving cleaning efficiency.

[0052] It should be noted that when specifically designing the structure of the transmission assembly, the number of cleaning positions can be set according to the driving force of the driving motor and production requirements.

[0053] Example 3

[0054] See also Figure 4 The cleaning mechanism of this embodiment further includes a pneumatic slip ring and a joint; the lower end of the transmission shaft is connected to the pneumatic slip ring; the pneumatic slip ring is connected to the joint; the joint is used to connect to the blower.

[0055] In this embodiment, a pneumatic slip ring is used as an intermediate connector between the connector and the drive shaft. This connection ensures unrestricted rotation of the drive shaft, while also ensuring a stable connection between the connector and the blower. The physical properties of the pneumatic slip ring ensure both unrestricted rotation of the drive shaft and a stable connection between the connector and the blower.

[0056] In addition, in this embodiment, the connector can be connected to the blower through a soft pipe.

[0057] Example 4

[0058] See also Figure 3 In this embodiment, a dust shield is provided at the through hole position of the box body; the dust shield is a hollow structure, and the hollow diameter is larger than the diameter of the brush shaft; the dust shield is set to a conical structure, and the lower end of the dust shield is sealed with the end face of the box body.

[0059] In this embodiment, the upper end of the dust shield is configured as a tapered structure, allowing dust removed from cleaning to slide down the tapered structure, preventing accumulation of dust. Furthermore, the lower end of the dust shield is sealed to the end face of the housing, preventing dust removed from cleaning from entering the device through the through-hole and affecting its operation. Furthermore, the dust shield is configured as a hollow structure with a diameter greater than that of the brush shaft to prevent it from interfering with the brush shaft's rotational cleaning function.

[0060] It should be noted that the lower end of the dust shield is sealed with the end face of the box body. A sealing ring can be installed on the connection surface between the limiting ring and the end face of the box body, or a sealing gasket can be added to the connection surface. The specific sealing method is not specifically limited here.

[0061] Example 5

[0062] See also Figure 3 The box body of this embodiment is designed to be an open semi-enclosed structure corresponding to the bare shell cleaning position, and the size of the box body is designed to be larger than the size of the bare shell cleaning position to prevent dust from falling outside the box body, and the bottom surface of the box body is designed to be inclined, and the inclined lower position of the bottom surface of the box body is close to the dust suction port.

[0063] In this embodiment, by designing the bottom surface of the box body to be inclined, the cleaned dust can be better flowed to the side of the dust suction port, thereby facilitating the efficient operation of the vacuum cleaner and preventing dust accumulation.

[0064] Example 6

[0065] See also Figure 3 A dust cover is provided above the position where the box body is connected to the suction port. In this embodiment, by providing a dust cover above the suction port, the dust cover can prevent dust from flying around due to excessive dust during the vacuuming process, thereby ensuring the cleanliness during the vacuuming process.

[0066] Example 7

[0067] See also Figure 4 The cleaning mechanism of this embodiment also includes a motor mounting bracket; the motor mounting bracket is fixedly mounted on the support platform; the motor mounting bracket is provided with a fixing column fixedly connected to the drive motor; the fixed connection of the drive motor is fixedly connected to the fixing column.

[0068] In this embodiment, the driving motor is firmly connected to the supporting platform through the motor mounting bracket to prevent excessive vibration caused by the rotation of the driving motor during the cleaning process from affecting the cleaning work.

[0069] Example 8

[0070] See also Figure 6 and Figure 7 , a guide groove is provided on the placement platform; the guide groove corresponds to the position of the cleaning port; a limiting protrusion is provided on the inner wall of the guide groove; the size of the guide groove is adapted to the opening size of the bare shell.

[0071] In this embodiment, the opening of the bare shell is placed upside down on the limiting protrusion of the guide groove; the limiting protrusion ensures that the bare shell will not fall, and the guide groove prevents the bare shell from shifting during the cleaning process, thereby ensuring the cleaning quality.

[0072] Embodiment 9

[0073] See also Figure 8 , the three-axis machine tool comprises:

[0074] An x-axis moving module, wherein the fixed end of the x-axis moving module is connected to the support carrier, and the driving end of the x-axis moving module is provided with a z-axis support frame;

[0075] A z-axis moving module, wherein the fixed end of the z-axis moving module is connected to the z-axis support frame; and the driving end of the z-axis moving module is provided with a y-axis support frame;

[0076] A y-axis moving module, wherein the fixed end of the y-axis moving module is connected to the y-axis support frame; and the driving end of the y-axis moving module is connected to the support platform.

[0077] In the specific implementation, the x-axis moving module drives the z-axis moving module to move forward and backward, the z-axis moving module drives the y-axis moving module to move up and down, and the y-axis moving module drives the support platform to move left and right, thereby driving the cleaning mechanism to move in three axes: up and down, front and back, and left and right.

[0078] It should be noted that the connection and installation positions of each axis of the three-axis machine tool in this embodiment are not limited. The connection sequence of the x-axis moving module, y-axis moving module and z-axis moving module can be adjusted as needed and is not specifically limited here.

[0079] The present invention is a bare shell cleaning device that places the bare shell to be cleaned upside down on a placement platform, and then uses a three-axis machine tool to drive the brush shaft to rise so that the top of the brush on the brush shaft reaches a predetermined position on the inner bottom of the aluminum shell. At the same time, the drive motor is started to drive the brush shaft to rotate through the transmission component, and then the three-axis machine tool is used to drive the brush shaft to move along the inner wall of the bare shell. The blower blows air into the inner cavity of the bare shell, and the dust extractor extracts dust, so that the brush of the brush shaft cleans the inner wall of the bare shell at a uniform speed and the cleaned dust is sucked into the dust extractor. After the cleaning is completed, the driving parts of the three-axis machine tool return to the middle position and wait for the next group of bare shells to be cleaned. Compared with the clamping cleaning method in the prior art, the present invention places the bare shell to be cleaned on the placement platform and cleans the inner wall of the bare shell through the movement of the three-axis machine tool. It has the advantage of stable cleaning and effectively prevents the problem of unstable cleaning during the cleaning process. In addition, the ingenious design of the transmission assembly allows a single drive motor to drive the rotation of multiple drive shafts, saving the motor's drive resources while also enabling simultaneous cleaning of multiple bare shells, improving cleaning efficiency. Furthermore, the structural design of the dust box prevents dust from accumulating, ensuring thorough and efficient vacuuming.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bare shell cleaning device, characterized in that: It includes a three-axis machine tool, a support platform, a cleaning mechanism and a support frame; the lower end of the support frame is provided with a support carrier; the fixed end of the three-axis machine tool is connected to the support carrier, and the driving end of the three-axis machine tool is connected to the support platform; the cleaning mechanism is installed on the support platform; The cleaning mechanism includes a driving motor, a transmission assembly, a brush shaft, a dust collection box, a dust extractor and an air blower; the driving motor is mounted on the supporting platform; the fixed end of the transmission assembly is connected to the supporting platform, and the transmission end of the transmission assembly is drivingly connected to the output shaft of the driving motor; the transmission shaft of the transmission assembly is a hollow shaft, and the lower end of the transmission shaft is connected to the air blower; the bottom end of the dust collection box is connected to the upper end of the supporting platform, and a through hole and a dust suction port are provided on the box body at the top; the upper end of the transmission shaft passes through the through hole and is connected to the brush shaft; the brush shaft is a hollow shaft; the dust extractor is connected to the dust suction port; a placing platform is provided at the upper end of the supporting frame; a cleaning port corresponding to the position of the brush shaft is provided on the placing platform, and the size of the cleaning port is adapted to the opening size of the bare shell.

2. The bare shell cleaning device according to claim 1, characterized in that: The transmission assembly includes a belt, a first synchronous wheel, a plurality of second synchronous wheel assemblies and a tension wheel assembly; The output shaft of the driving motor is transmission-connected to the first synchronous wheel; a plurality of the tensioning wheel assemblies and a plurality of evenly distributed second synchronous wheel assemblies are installed at the lower end of the supporting platform; the belt is transmission-connected to the first synchronous wheel, the first tensioning wheel assembly, the first second synchronous wheel assembly, the second tensioning wheel assembly, the second second synchronous wheel assembly, the Nth tensioning wheel assembly, the Nth second synchronous wheel assembly in a clockwise direction, and the belt finally returns to the first synchronous wheel.

3. The bare shell cleaning device according to claim 2, characterized in that: The second synchronous wheel assembly includes a second synchronous wheel, a transmission shaft, a flange and a bearing; a mounting hole is provided on the support platform; the mounting hole is sleeved with the lower end outer ring of the flange, and the end face of the middle outer ring of the flange abuts against the upper end face of the support platform; the upper and lower inner rings of the flange are sleeved with the outer ring of the bearing, and the inner ring end face of the bearing at the lower end abuts against the shaft end face of the synchronous wheel; the transmission shaft is sequentially sleeved through the second synchronous wheel, the bearing at the lower end, the flange and the bearing at the upper end from bottom to top.

4. The bare shell cleaning device according to claim 1, characterized in that: The cleaning mechanism also includes a pneumatic slip ring and a joint; the lower end of the transmission shaft is connected to the; the pneumatic slip ring is movably connected to the joint; the joint is used to connect to the air blower.

5. The bare shell cleaning device according to claim 1, characterized in that: A dust stopper is provided at the through hole of the box body; the dust stopper is a hollow structure, and the hollow diameter is larger than the diameter of the brush shaft; the dust stopper is a conical structure, and the lower end of the dust stopper is sealed and connected to the end face of the box body.

6. The bare shell cleaning device according to claim 1, characterized in that: The box body is designed to be an open semi-enclosed structure corresponding to the bare shell cleaning position, and the bottom surface of the box body is designed to be inclined, and the inclined lower position of the bottom surface of the box body is close to the dust suction port.

7. The bare shell cleaning device according to claim 6, characterized in that: A dust cover is provided above the position where the box body is connected to the dust suction port.

8. The bare shell cleaning device according to claim 1, characterized in that: The cleaning mechanism also includes a motor mounting frame; the motor mounting frame is fixedly mounted on the support platform; a fixing column is provided on the motor mounting frame at a fixed connection with the drive motor; the fixed connection of the drive motor is fixedly connected to the fixing column.

9. The bare shell cleaning device according to claim 2, characterized in that: The placing platform is provided with a guide groove; the guide groove corresponds to the position of the cleaning port; the inner wall of the guide groove is provided with a limiting protrusion; the limiting protrusion is used for limiting the bare shell.

10. The bare shell cleaning device according to claim 2, characterized in that: The three-axis machine tool comprises: An x-axis moving module, wherein the fixed end of the x-axis moving module is connected to the supporting carrier, and the driving end of the x-axis moving module is provided with a z-axis supporting frame; A z-axis moving module, wherein the fixed end of the z-axis moving module is connected to the z-axis support frame; and the driving end of the z-axis moving module is provided with a y-axis support frame; A y-axis moving module, wherein the fixed end of the y-axis moving module is connected to the y-axis supporting frame; and the driving end of the y-axis moving module is connected to the supporting platform.

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