A deburring and grinding integrated device for a tensioner housing

Abstract

The application discloses a deburring and grinding integrated device for a tensioner shell and relates to the technical field of tensioner shell surface treatment. The device comprises a main body, a driving unit arranged on the main body, and two clamping units connected with the main body through the driving unit. The sandpaper belt is wrapped on a magnetic framework with a bottom plane and two arc-shaped surfaces, so that the bottom plane area of the sandpaper belt is used for shell surface grinding, and the two bending areas are used for removing the mold line burr root. The two processes of surface roughness improvement and burr removal can be completed at the same time in one process, the processing time is significantly shortened, the production efficiency is improved, the driving unit is matched with the clamping unit, the self-adaptive tensioning function of the elastic element is matched, the sandpaper belt can be deformed according to the surface profile of the workpiece, and the device is suitable for tensioner shells with different sizes.

Description

Technical Field

[0001] This invention relates to the field of surface treatment technology for tensioner housings, specifically to an integrated device for deburring and grinding tensioner housings. Background Technology

[0002] As a key component of automotive engines, the tensioner's housing is mostly formed using casting. Due to the inherent characteristics of the casting process, the surface of the tensioner housing after demolding is relatively rough, and burrs are easily generated near the parting line. The surface roughness of the housing directly affects the assembly accuracy and sealing performance of the tensioner with other components. If the burrs at the parting line are not completely removed, they are prone to falling off during subsequent assembly and use, causing internal engine wear or even malfunction. Therefore, surface grinding and deburring of the tensioner housing are necessary procedures to ensure product quality and reliability.

[0003] Currently, for the surface treatment of tensioner housings, the industry is trying to use flexible abrasive belts in conjunction with a clamping mechanism for grinding and deburring. However, when the flexible abrasive belt crosses the edge of the workpiece, the pressure is concentrated at the bend, which can easily cause excessive wear on the edge of the mounting surface after long-term use. This causes the mounting surface, which should be flat, to develop a convex arc deformation, affecting the fit of the assembly. The contact pressure between the abrasive belt and the workpiece is usually provided by a mechanical spring or cylinder, and the pressure distribution is difficult to adjust according to the contour of the workpiece. It has limited adaptability to situations where the roughness of the casting surface is uneven or the burr height is not uniform. Summary of the Invention

[0004] The purpose of this invention is to provide an integrated deburring and grinding device for tensioner housings to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A tensioner housing deburring and grinding integrated device includes: main body; A drive unit is disposed on the main body; Two clamping units are connected to the main body via the drive unit; A sandpaper strip, with its two ends connected to two clamping units respectively, and the length of the sandpaper strip is greater than the distance between the two clamping units in the working state; An electromagnetic spring unit is installed below the center of the main body, and the electromagnetic spring unit includes: A magnetic skeleton, which is made of a flexible material and has a magnetic coating layer on its surface, has a flat bottom surface and curved sides, and the sandpaper strip is wrapped around the outer wall of the magnetic skeleton.

[0006] Furthermore, the electromagnetic spring unit also includes: The electromagnetic spring unit also includes: An excitation coil is installed in the middle of the main body, and the axis of the excitation coil is perpendicular to the middle of the magnetic skeleton.

[0007] Furthermore, the clamping unit includes: The center component has the same cross-sectional shape as the magnetic skeleton. The center components of the two clamping units are respectively disposed at both ends of the magnetic skeleton, and the center component is connected to the driving unit. Coverings are disposed at both ends of the central member, and the coverings cooperate with the central member to shape the sandpaper strip.

[0008] Furthermore, the driving unit includes: A sliding component is slidably disposed in the middle of the main body; An elastic element is located inside the main body and is disposed at one end of the sliding element; Two connecting members are respectively disposed at one end of the sliding member and the elastic member, and one end of the connecting member is connected to the corresponding center member.

[0009] Furthermore, the main body is internally provided with: A reciprocating linear motor is mounted on the main body, and its output end is connected to the sliding member.

[0010] Furthermore, the magnetic skeleton is provided with two flat members inside, which are symmetrically arranged on both sides inside the magnetic skeleton.

[0011] Furthermore, the polishing device also includes a cleaning unit, which is connected to an airflow supply device and directs the airflow to the sandpaper belt; The sandpaper tape has a mesh material as a base, and the surface of the mesh material is covered with a polishing layer.

[0012] Furthermore, the cleaning unit includes: A hollow cavity is formed inside the magnetic skeleton; Several vent holes are formed on the surface of the magnetic skeleton near the sandpaper strip, and the vent holes are connected to the pipes for connecting the airflow supply device through the hollow cavity.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: The sandpaper strip is wrapped around a magnetic skeleton with a bottom flat surface and two curved sides. The sandpaper strip forms a bottom flat area for grinding the shell surface and two curved sides for removing the root of the burrs at the parting line. The surface roughness improvement and burr removal processes can be completed in one process, which significantly shortens the processing time and improves the production efficiency. The cooperation between the drive unit and the clamping unit, together with the adaptive tensioning function of the elastic element, allows the sandpaper strip to conform to the contour of the workpiece surface. It is suitable for tensioner shells of different shapes and sizes. The electromagnetic spring unit applies non-contact downward pressure to the magnetic frame. By utilizing the interaction between the magnetic field generated by the excitation coil and the magnetic coating layer of the magnetic frame, it can reduce the pressure at the bending edge of the sandpaper tape and increase the pressure in the middle according to the workpiece contour, thereby alleviating the pressure concentration problem caused by the bending of the sandpaper tape at the edge of the mounting surface and ensuring the flatness of the mounting surface. The magnetic skeleton has a hollow cavity and vent holes inside. When used with the sandpaper belt on the mesh base, it can directly guide airflow or low-temperature airflow into the interior of the sanding layer, promptly remove debris embedded in the grooves of the sanding layer, reduce the working temperature of the sandpaper belt, effectively delay the clogging and thermal decay of the sanding layer, reduce the frequency of sandpaper belt replacement, and lower consumable costs. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the main structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the electromagnetic spring unit of the present invention; Figure 5 This is a three-dimensional structural diagram of the driving unit and clamping unit of the present invention; Figure 6 This is a three-dimensional structural diagram of the driving unit of the present invention; Figure 7 This is a three-dimensional structural diagram of the clamping unit of the present invention; Figure 8 This is a schematic diagram of the cleaning unit of the present invention, viewed from the right side in full sectional view.

[0015] In the picture: 1. Main body; 101. Reciprocating linear motor; 2. Drive unit; 201. Sliding component; 202. Elastic component; 203. Connecting component; 3. Clamping unit; 301. Center component; 302. Cover component; 4. Sandpaper tape; 5. Electromagnetic spring unit; 501. Magnetic frame; 502. Excitation coil; 503. Flat component; 6. Cleaning unit; 601. Hollow cavity; 602. Vent hole. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figures 1-8 The present invention provides a technical solution: an integrated device for deburring and grinding a tensioner housing, comprising: Entity 1; Drive unit 2 is mounted on main body 1; Two clamping units 3 are connected to the main body 1 through the driving unit 2; The sandpaper strip 4 has two ends connected to two clamping units 3 respectively, and the length of the sandpaper strip 4 is greater than the distance between the two clamping units 3 in the working state. An electromagnetic spring unit 5 is installed at the lower center of the main body 1. The electromagnetic spring unit 5 includes: The magnetic skeleton 501 is made of flexible material and has a magnetic coating layer on its surface. The bottom surface of the magnetic skeleton 501 is flat and the two sides are curved. Sandpaper strip 4 is wrapped around the outer wall of the magnetic skeleton 501.

[0018] The required sandpaper strip 4 is installed on the magnetic skeleton 501 through the clamping unit 3. Then the drive unit 2 can be started. When the drive unit 2 is working, the sandpaper strip 4 is driven to perform horizontal reciprocating motion through the clamping unit 3. After the sandpaper strip 4 is installed, it is wrapped around the magnetic skeleton 501. Since the bottom surface of the magnetic skeleton 501 is flat and the front and back sides are arc-shaped, the front and back sides of the sandpaper strip 4 after being wrapped will be in an inward folded shape. The front and back sides of the sandpaper strip 4 are bent into a natural curved shape. The tensioner housing is mainly produced by casting. After demolding, the surface of the tensioner housing is relatively rough, and there may be burrs near the parting line on the tensioner. Then, the surface of the tensioner housing can be processed by hand or robotic arm control. The shape of the sandpaper belt 4 is shaped by grinding, so that the bottom flat area of ​​the sandpaper belt 4 is mainly used for surface treatment of the tensioner housing. The bending areas on the front and back sides of the sandpaper belt 4 can be used to remove burrs on the tensioner. The root of the burr is cut off by the side of the sandpaper belt 4, without having to grind the entire burr from top to bottom, saving the time required for burr treatment. An electromagnetic spring unit 5 is provided on the side of the main body 1 near the sandpaper strip 4. At the same time, the sandpaper strip 4 covers the outside of the magnetic skeleton 501 in a wrapping manner. The internal structure of the electromagnetic spring unit 5 generates a magnetic field that repels the magnetic skeleton 501, which in turn provides downward pressure to the sandpaper strip 4 through the magnetic skeleton 501. The pressure is provided in a magnetic repulsion manner to ensure that the pressure in the area covered by the magnetic field is equal. When grinding the mounting surface of the tensioner housing, the width of the mounting surface is much smaller than the length of the sandpaper strip 4. After the sandpaper strip 4 is placed on the mounting surface, since both the sandpaper strip 4 and the magnetic skeleton 501 are made of flexible materials, the sandpaper strip 4 will deform into a V-shaped shape with the middle horizontal after being placed on the mounting surface of the tensioner. Under normal conditions, the drive unit 2 is activated, and the drive unit 2 controls the sandpaper strip 4 to reciprocate. When the length of the sandpaper strip 4 is much larger than the width of the mounting surface, the sandpaper strip 4 will bend on both sides of the mounting surface, forming a shape with the middle flat and the sides bent. The pressure at the bend is significantly higher than that in the middle. Long-term grinding will grind the flat state of the mounting surface into a state with a convex arc in the middle. The electromagnetic spring can actively reduce the pressure in the edge area and increase the pressure in the middle area by independently controlling the pressure in the partition, thereby significantly alleviating the pressure concentration and over-grinding of the edges caused by the bending of the sandpaper strip 4 at the edge of the mounting surface.

[0019] See Figure 4 The electromagnetic spring unit 5 also includes: The electromagnetic spring unit 5 also includes: The excitation coil 502 is installed in the middle of the main body 1, and the axis of the excitation coil 502 is perpendicular to the middle of the magnetic skeleton 501.

[0020] When the excitation coil 502 is energized, it generates a magnetic field along its axis. This magnetic field covers the corresponding area of ​​the magnetic skeleton 501 and interacts with the permanent magnet of the magnetic skeleton 501, causing the magnetic skeleton 501 to be subjected to an electromagnetic force perpendicular to the sandpaper belt 4, thereby applying a vertical downward pressure to the sandpaper belt 4 and realizing the active adjustment of the grinding pressure. Under normal conditions, the sandpaper belt 4 is in an outward convex shape under the action of the electromagnetic spring unit 5. When the surface of the tensioner is polished in the outward convex shape, the clamping units 3 at both ends of the sandpaper belt 4 will not interfere with the tensioner body, so as not to interfere with the polishing process.

[0021] See Figure 4 , Figure 5 , Figure 7 The clamping unit 3 includes: The center component 301 has the same cross-sectional shape as the magnetic skeleton 501. The center components 301 of the two clamping units 3 are respectively disposed at both ends of the magnetic skeleton 501. The center component 301 is connected to the driving unit 2. Covering parts 302 are disposed at both ends of the center part 301. Covering parts 302 cooperate with center part 301 to shape sandpaper strip 4.

[0022] When the grinding device is working, the drive unit 2 drives the clamping unit 3 to move. The center parts 301 of the two clamping units 3 are respectively located at both ends of the magnetic skeleton 501, and the cross-sectional shape of the center parts 301 is the same as that of the magnetic skeleton 501, ensuring that the sandpaper strip 4 fits the magnetic skeleton 501. The cover part 302 is located at both ends of the center parts 301 and cooperates with the center parts 301 to shape the sandpaper strip 4, so that the sandpaper strip 4 forms a bottom side plane area and front and rear side bending areas. In response to the problem of rough surface of the casting tensioner shell and burrs on the mold parting line, the grinding device is controlled by hand or robotic arm to make the bottom side plane area of ​​the sandpaper strip 4 fit the shell surface for grinding. At the same time, the burrs near the parting line are treated by using the bending areas on both sides of the sandpaper belt 4. The root of the burr is cut off by the side of the sandpaper belt 4, so that the burr does not need to be ground from top to bottom, thus saving burr treatment time.

[0023] See Figure 6 The drive unit 2 includes: The slider 201 is slidably disposed in the middle of the main body 1; The elastic element 202 is located inside the main body 1 and is disposed at one end of the sliding element 201; Two connectors 203 are respectively disposed at one end of the sliding member 201 and the elastic member 202, and one end of the connector 203 is connected to the corresponding center member 301.

[0024] During operation, the power source is connected to the sliding member 201, and the power source drives the sliding member 201 to perform linear reciprocating motion. The sliding member 201 slides along the main body 1 under the drive of external force. The sliding member 201 and the elastic member 202 are on the same straight line. The two connecting members 203 are located at the two ends of the straight line respectively. The connecting members 203 are connected to the sandpaper belt 4 through the clamping unit 3. The elastic member 202 is used to adapt to the active movement of the sandpaper belt 4 during sanding, thereby affecting the reduction of the distance between the two connecting members 203. The presence of the elastic member 202 is mainly used to actively adapt to the outer surface of the tensioner in conjunction with the electromagnetic spring unit 5 during sanding. At the same time, the tension of the sandpaper belt 4 is adjusted, and the elastic element 202 can absorb the vibration and impact during the grinding process, ensuring the stability of the contact pressure between the sandpaper belt 4 and the workpiece surface, and maintaining the grinding shape of the bottom plane area and the two side bending areas of the sandpaper belt 4.

[0025] See Figures 5-6 The main body 1 contains: A reciprocating linear motor 101 is mounted on the main body 1, and its output end is connected to the sliding member 201.

[0026] The main function of the reciprocating linear motor 101 is to provide periodic reciprocating linear drive for the sliding member 201, so that the sandpaper belt 4 moves on the surface of the tensioner in a linear motion, and the sanding effect of the area covered by the sandpaper belt 4 is more even.

[0027] See Figure 8 The magnetic skeleton 501 has two flat parts 503 inside, which are symmetrically arranged on both sides inside the magnetic skeleton 501.

[0028] During grinding, the sandpaper belt 4 can naturally bend to conform to the surface of the grinding area to fit the workpiece surface. At the same time, the flat part 503 has a large bending stiffness in the direction perpendicular to its orientation, providing lateral support for the magnetic skeleton 501. This ensures that the sandpaper belt 4 will not bend or deform when shearing burrs, thereby maintaining the shape stability of the bottom plane area and the two side bending areas of the sandpaper belt 4, realizing the simultaneous grinding and deburring, and improving the accuracy of burr root removal.

[0029] See Figure 4 and Figure 8 The grinding device also includes a cleaning unit 6, which is used to connect to the airflow supply equipment and guide the airflow to the sandpaper belt 4; Sandpaper tape 4 has a mesh material as its base, and the surface of the mesh material is covered with a sanding layer.

[0030] The cleaning unit 6 is set up to use airflow to clean the sandpaper belt 4. When the sandpaper belt 4 polishes the tensioner, some of the sanding debris will exist in the groove of the sandpaper belt 4's polishing layer. Long-term use will affect the polishing effect of the sandpaper belt 4.

[0031] The cleaning unit 6 is connected to the air supply equipment. The airflow is output to the sandpaper belt 4 through the cleaning unit 6. Due to the structural design of the sandpaper belt 4, the airflow can pass through the sandpaper belt 4 vertically to clean the sandpaper belt 4 in the optimal airflow manner. The airflow is cooled to further cool the sandpaper belt 4 during operation, extend the working life of the sandpaper belt 4, and prevent the sanding layer on the sandpaper belt 4 from overheating and affecting the performance.

[0032] See Figure 4 and Figure 8 The cleaning unit 6 includes: Hollow cavity 601 is formed inside magnetic skeleton 501; Several vent holes 602 are formed on the surface of the magnetic skeleton 501 near the sandpaper belt 4. The vent holes 602 are connected to the pipes used to connect the airflow supply equipment through the hollow cavity 601.

[0033] The hollow cavity 601 is supplied with airflow through a pipe. The magnetic skeleton 501 has an inner cavity, which is the hollow cavity 601. At the same time, the surface of the magnetic skeleton 501 that is in contact with the sandpaper tape 4 is provided with vent holes 602. The magnetic skeleton 501 has dense vent holes 602, and the central axis of the vent holes 602 is perpendicular to the sandpaper tape 4. When the air supply device inputs air or low-temperature air into the hollow cavity 601, the air pressure inside the hollow cavity 601 rises, and the airflow leaves through the vent 602 and the mesh on the sandpaper belt 4. During the passage of the airflow through the sandpaper belt 4, it impacts the debris in the sanding layer of the sandpaper belt 4, which can effectively clean the debris and prevent the debris from remaining in the sanding layer of the sandpaper belt 4.

[0034] Working principle of the invention: The required sandpaper strip 4 is installed on the magnetic skeleton 501 through the clamping unit 3. Then the drive unit 2 can be started. When the drive unit 2 is working, the sandpaper strip 4 is driven to perform horizontal reciprocating motion through the clamping unit 3. After the sandpaper strip 4 is installed, it is wrapped around the magnetic skeleton 501. Since the bottom surface of the magnetic skeleton 501 is flat and the front and back sides are arc-shaped, the front and back sides of the sandpaper strip 4 after being wrapped will be in an inward folded shape. The front and back sides of the sandpaper strip 4 are bent into a natural curved shape. The tensioner housing is mainly produced by casting. After demolding, the surface of the tensioner housing is relatively rough, and there may be burrs near the parting line on the tensioner. Then, the surface of the tensioner housing can be processed by hand or robotic arm control. The shape of the sandpaper belt 4 is shaped by grinding, so that the bottom flat area of ​​the sandpaper belt 4 is mainly used for surface treatment of the tensioner housing. The bending areas on the front and back sides of the sandpaper belt 4 can be used to remove burrs on the tensioner. The root of the burr is cut off by the side of the sandpaper belt 4, without having to grind the entire burr from top to bottom, saving the time required for burr treatment. An electromagnetic spring unit 5 is provided on the side of the main body 1 near the sandpaper strip 4. At the same time, the sandpaper strip 4 covers the outside of the magnetic skeleton 501 in a wrapping manner. The internal structure of the electromagnetic spring unit 5 generates a magnetic field that repels the magnetic skeleton 501, which in turn provides downward pressure to the sandpaper strip 4 through the magnetic skeleton 501. The pressure is provided in a magnetic repulsion manner to ensure that the pressure in the area covered by the magnetic field is equal. When grinding the mounting surface of the tensioner housing, the width of the mounting surface is much smaller than the length of the sandpaper strip 4. After the sandpaper strip 4 is placed on the mounting surface, since both the sandpaper strip 4 and the magnetic skeleton 501 are made of flexible materials, the sandpaper strip 4 will deform into a V-shaped shape with the middle horizontal after being placed on the mounting surface of the tensioner. Under normal conditions, the drive unit 2 is activated, and the drive unit 2 controls the sandpaper strip 4 to reciprocate. When the length of the sandpaper strip 4 is much larger than the width of the mounting surface, the sandpaper strip 4 will bend on both sides of the mounting surface, forming a shape with the middle flat and the sides bent. The pressure at the bend is significantly higher than that in the middle. Long-term grinding will grind the flat state of the mounting surface into a state with a convex arc in the middle. The electromagnetic spring can actively reduce the pressure in the edge area and increase the pressure in the middle area by independently controlling the pressure in the partition, thereby significantly alleviating the pressure concentration and over-grinding of the edges caused by the bending of the sandpaper strip 4 at the edge of the mounting surface. When the excitation coil 502 is energized, it generates a magnetic field along its axis. This magnetic field covers the corresponding area of ​​the magnetic skeleton 501 and interacts with the permanent magnet of the magnetic skeleton 501, causing the magnetic skeleton 501 to be subjected to an electromagnetic force perpendicular to the sandpaper belt 4, thereby applying a vertical downward pressure to the sandpaper belt 4 and realizing the active adjustment of the grinding pressure. Under normal conditions, the sandpaper belt 4 is in an outward convex shape under the action of the electromagnetic spring unit 5. When the surface of the tensioner is polished in the outward convex shape, the clamping units 3 at both ends of the sandpaper belt 4 will not interfere with the tensioner body, so as not to interfere with the polishing process.

[0035] When the grinding device is working, the drive unit 2 drives the clamping unit 3 to move. The center parts 301 of the two clamping units 3 are respectively located at both ends of the magnetic skeleton 501, and the cross-sectional shape of the center parts 301 is the same as that of the magnetic skeleton 501, ensuring that the sandpaper strip 4 fits the magnetic skeleton 501. The cover part 302 is located at both ends of the center parts 301 and cooperates with the center parts 301 to shape the sandpaper strip 4, so that the sandpaper strip 4 forms a bottom side plane area and front and rear side bending areas. In response to the problem of rough surface of the casting tensioner shell and burrs on the mold parting line, the grinding device is controlled by hand or robotic arm to make the bottom side plane area of ​​the sandpaper strip 4 fit the shell surface for grinding. At the same time, the burrs near the parting line are treated by using the bending areas on both sides of the sandpaper belt 4. The root of the burr is cut off by the side of the sandpaper belt 4, so that the burr does not need to be ground from top to bottom, thus saving burr treatment time.

[0036] During operation, the power source is connected to the sliding member 201, and the power source drives the sliding member 201 to perform linear reciprocating motion. The sliding member 201 slides along the main body 1 under the drive of external force. The sliding member 201 and the elastic member 202 are on the same straight line. The two connecting members 203 are located at the two ends of the straight line respectively. The connecting members 203 are connected to the sandpaper belt 4 through the clamping unit 3. The elastic member 202 is used to adapt to the active movement of the sandpaper belt 4 during sanding, thereby affecting the reduction of the distance between the two connecting members 203. The presence of the elastic member 202 is mainly used to actively adapt to the outer surface of the tensioner in conjunction with the electromagnetic spring unit 5 during sanding. At the same time, the tension of the sandpaper belt 4 is adjusted, and the elastic element 202 can absorb the vibration and impact during the grinding process, ensuring the stability of the contact pressure between the sandpaper belt 4 and the workpiece surface, and maintaining the grinding shape of the bottom plane area and the two side bending areas of the sandpaper belt 4.

[0037] The main function of the reciprocating linear motor 101 is to provide periodic reciprocating linear drive for the sliding member 201, so that the sandpaper belt 4 moves on the surface of the tensioner in a linear motion, and the sanding effect of the area covered by the sandpaper belt 4 is more even.

[0038] During grinding, the sandpaper belt 4 can naturally bend to conform to the surface of the grinding area to fit the workpiece surface. At the same time, the flat part 503 has a large bending stiffness in the direction perpendicular to its orientation, providing lateral support for the magnetic skeleton 501. This ensures that the sandpaper belt 4 will not bend or deform when shearing burrs, thereby maintaining the shape stability of the bottom plane area and the two side bending areas of the sandpaper belt 4, realizing the simultaneous grinding and deburring, and improving the accuracy of burr root removal.

[0039] The cleaning unit 6 is set up to use airflow to clean the sandpaper belt 4. When the sandpaper belt 4 polishes the tensioner, some of the sanding debris will exist in the groove of the sandpaper belt 4's polishing layer. Long-term use will affect the polishing effect of the sandpaper belt 4. The cleaning unit 6 is connected to the air supply equipment. The airflow is output to the sandpaper belt 4 through the cleaning unit 6. Due to the structural design of the sandpaper belt 4, the airflow can pass through the sandpaper belt 4 vertically to clean the sandpaper belt 4 in the optimal airflow manner. The airflow is cooled to further cool the sandpaper belt 4 during operation, extend the working life of the sandpaper belt 4, and prevent the sanding layer on the sandpaper belt 4 from overheating and affecting the performance.

[0040] The hollow cavity 601 is supplied with airflow through a pipe. The magnetic skeleton 501 has an inner cavity, which is the hollow cavity 601. At the same time, the surface of the magnetic skeleton 501 that is in contact with the sandpaper tape 4 is provided with vent holes 602. The magnetic skeleton 501 has dense vent holes 602, and the central axis of the vent holes 602 is perpendicular to the sandpaper tape 4. When the air supply device inputs air or low-temperature air into the hollow cavity 601, the air pressure inside the hollow cavity 601 rises, and the airflow leaves through the vent 602 and the mesh on the sandpaper belt 4. During the passage of the airflow through the sandpaper belt 4, it impacts the debris in the sanding layer of the sandpaper belt 4, which can effectively clean the debris and prevent the debris from remaining in the sanding layer of the sandpaper belt 4.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 deburring and grinding integrated device for tensioner housings, characterized in that, include: Main body (1); A drive unit (2) is disposed on the main body (1); Two clamping units (3) are connected to the main body (1) via the driving unit (2); The sandpaper strip (4) is connected to the two clamping units (3) at both ends respectively. The length of the sandpaper strip (4) is greater than the distance between the two clamping units (3) in the working state. An electromagnetic spring unit (5) is installed below the center of the main body (1), and the electromagnetic spring unit (5) includes: The magnetic skeleton (501) is made of flexible material and has a magnetic coating layer on its surface. The bottom surface of the magnetic skeleton (501) is flat and the two sides are arc-shaped. The sandpaper strip (4) is wrapped around the outer wall of the magnetic skeleton (501).

2. The integrated deburring and grinding device for a tensioner housing according to claim 1, characterized in that: The electromagnetic spring unit (5) also includes: The electromagnetic spring unit (5) also includes: An excitation coil (502) is installed in the middle of the main body (1), and the axis of the excitation coil (502) is perpendicular to the middle of the magnetic skeleton (501).

3. The integrated deburring and grinding device for a tensioner housing according to claim 1, characterized in that: The clamping unit (3) includes: The center component (301) has the same cross-sectional shape as the magnetic skeleton (501). The center components (301) of the two clamping units (3) are respectively disposed at both ends of the magnetic skeleton (501). The center component (301) is connected to the driving unit (2). Coverings (302) are disposed at both ends of the center piece (301), and the coverings (302) cooperate with the center piece (301) to shape the sandpaper strip (4).

4. The integrated deburring and grinding device for a tensioner housing according to claim 3, characterized in that: The driving unit (2) includes: A slider (201) is slidably disposed in the middle of the main body (1); An elastic element (202) is located inside the main body (1) and is disposed at one end of the sliding element (201); Two connectors (203) are respectively disposed at one end of the sliding member (201) and the elastic member (202), and one end of the connector (203) is connected to the corresponding center member (301).

5. The integrated deburring and grinding device for a tensioner housing according to claim 4, characterized in that: The main body (1) is internally provided with: A reciprocating linear motor (101) is mounted on the main body (1), and its output end is connected to the sliding member (201).

6. The integrated deburring and grinding device for a tensioner housing according to claim 1, characterized in that: The magnetic skeleton (501) is provided with two flat parts (503) inside, and the two flat parts (503) are symmetrically arranged on both sides inside the magnetic skeleton (501).

7. The integrated deburring and grinding device for a tensioner housing according to claim 1, characterized in that: The polishing device also includes a cleaning unit (6), which is used to connect to the airflow supply device and guide the airflow to the sandpaper belt (4). The sandpaper tape (4) is based on a mesh material, and the surface of the mesh material is covered with a polishing layer.

8. The integrated deburring and grinding device for a tensioner housing according to claim 7, characterized in that: The cleaning unit (6) includes: A hollow cavity (601) is formed inside the magnetic skeleton (501); Several vent holes (602) are provided on the side surface of the magnetic skeleton (501) near the sandpaper strip (4), and the vent holes (602) are connected to the pipes for connecting the airflow supply equipment through the hollow cavity (601).

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