A cam deburring and edge trimming device

Abstract

The application discloses a cam deburring and edge trimming device, which comprises a bearing frame arranged on the surface of a workbench and a moving assembly, the moving assembly moves between a workbench clamping station and a polishing station, the moving end surface of the moving assembly is provided with a speed reducer motor, and the output end of the speed reducer motor is connected with a placement jig; a rotating chuck for mounting a handheld belt sander is rotatably arranged on the bearing frame, an up-and-down cylinder is arranged on the surface of the workbench, and the output end of the up-and-down cylinder is vertically upward and abuts against the shell of the handheld belt sander. The speed reducer motor drives the rotation of the placement jig, the rotation of the handheld belt sander is realized through the rotating chuck, the up-and-down cylinder reciprocatingly supports the handheld belt sander, the handheld belt sander floats and swings along with the rotation of the placement jig, the handheld belt sander is always in accurate contact with the outer contour edges of the cam, and the polishing quality is stable and uniform.

Description

Technical Field

[0001] This invention relates to the field of cam processing equipment technology, specifically to a cam deburring and edge removal device. Background Technology

[0002] Cams are common transmission components. During cam manufacturing, burrs easily form at the junction of the cam plane and the outer circular surface. To ensure cam machining quality, burrs need to be removed and the edges ground. Because the overall cross-section of a cam is an irregular circular structure, current automatic grinding devices cannot automatically grind the cam edges. This requires manual grinding by operators, resulting in low efficiency and inconsistent grinding quality due to operator skill limitations. Therefore, this paper proposes a cam deburring and edge-removing device that can automatically grind cam edges, ensuring stable and uniform grinding quality. Summary of the Invention

[0003] The purpose of this invention is to provide a cam deburring and edge-removing device to solve the above-mentioned problems, as detailed below.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The present invention provides a cam deburring and edge removal device, including a support frame and a moving component disposed on the surface of a worktable. The moving component moves between a worktable clamping station and a grinding station. A reduction motor is disposed on the moving end surface of the moving component. The output end of the reduction motor is vertically upward and connected to a placement fixture for clamping the cam.

[0006] The support frame is rotatably equipped with a rotating chuck for mounting a handheld belt sander. The sanding end of the handheld belt sander extends to the sanding station. The worktable surface is equipped with an undulating cylinder. The output end of the undulating cylinder is vertically upward and abuts against the outer shell of the handheld belt sander, which is used to cooperate with the rotating chuck to make the handheld belt sander float and swing in the vertical plane.

[0007] Using the aforementioned cam deburring and edge-removing device, during operation, the moving component drives the reduction motor and the placement fixture to the clamping position. The operator clamps the cam to be ground onto the placement fixture. The moving component then drives the reduction motor and the placement fixture to the grinding position, where the reduction motor rotates the placement fixture. During cam rotation, the output end of the undulating cylinder extends, supporting the handheld belt sander as it rotates vertically away from the placement fixture. Conversely, the output end of the undulating cylinder retracts, and under gravity, the handheld belt sander rotates vertically closer to the placement fixture, thus achieving a floating and swaying motion of the handheld belt sander in the vertical plane. As the cam rotates with the placement fixture, the outer edge contour of the cam... As the cam's outer edge contour changes, the undulating cylinder adapts to drive the handheld belt sander to float and oscillate in the vertical plane, ensuring that the sanding belt of the handheld belt sander is always in accurate contact with the outer edge contour of the cam. This process polishes the edges of the cam's outer edge, removing burrs. Through this process, automatic polishing and burr removal of the cam's edges can be achieved, resulting in good polishing effect and high efficiency, thus improving production efficiency. The undulating cylinder's support speed and amplitude can be adjusted according to different cam outer edge contours, ensuring that the handheld belt sander is always in accurate contact with the edges of the cam's outer edge contour. This meets the edge polishing needs of cams with different outer edge contours and has a wide range of applications.

[0008] Preferably, the moving component includes a drive cylinder, a guide rail, and a moving plate. The guide rail is disposed on the surface of the worktable and extends along the direction of the clamping station and the grinding station. A reduction motor is disposed on the surface of the moving plate, and a slider is disposed on the bottom surface of the moving plate. The slider is slidably engaged with the guide rail. The output end of the drive cylinder is connected to the moving plate and is used to drive the moving plate to move back and forth between the clamping station and the grinding station.

[0009] Preferably, the placement fixture includes a support column, a connecting seat at the bottom of the support column for connecting to the output end of the geared motor, a cover plate at the top of the support column, a guide waist-shaped groove through the cover plate, multiple guide waist-shaped grooves corresponding to the mounting holes of the cam, the guide waist-shaped grooves extending radially along the cover plate, a positioning column inside the guide waist-shaped groove, a drive shaft rotatably mounted inside the support column, the drive shaft extending radially along the support column, a transmission component between the drive shaft and the positioning column, the forward and reverse rotation of the drive shaft drives the positioning column to slide horizontally within the guide waist-shaped groove through the transmission component, moving away from or closer to each other.

[0010] Preferably, the bearing column is provided with a sliding cavity, which extends along the axial direction of the bearing column, penetrates the upper end face of the bearing column and is connected to the guide waist groove. The bottom end of the positioning column has an inverted conical structure and extends into the sliding cavity. The cover plate has a double-layer structure. The bottom surface of the upper cover plate is provided with a limiting cavity. The positioning column is provided with a limiting ring on the outside of the limiting cavity. The limiting ring cooperates with the limiting cavity to restrict the lifting and lowering of the positioning column.

[0011] The transmission component includes a transmission ball located inside the sliding cavity and above the drive shaft. The transmission ball abuts against the bottom ends of all the positioning pins. The outer circumference of the middle part of the drive shaft is provided with a driving low surface and a driving high surface. Both the driving low surface and the driving high surface extend circumferentially along the drive shaft and transition smoothly between them. The driving high surface contacts the transmission ball. The transmission ball rises and pushes the positioning pins to slide away from each other inside the guide waist-shaped groove. The driving low surface contacts the transmission ball. Under the action of gravity, the transmission ball descends and releases the push on the positioning pins. The surface of the driving high surface is provided with a limiting recess for limiting and fixing the transmission ball on the driving high surface.

[0012] Preferably, the inner diameter of the sliding cavity is adapted to the outer diameter of the transmission ball, and a clearance cavity is coaxially provided on the upper part of the sliding cavity, the inner diameter of the clearance cavity being larger than the horizontal sliding stroke distance of the positioning column.

[0013] Preferably, the bearing column is provided with a rotating cavity inside, which penetrates the outer circular surface of the bearing column in the radial direction. The rotating cavity is connected to the sliding cavity. Limiting planes are provided on the outer side of the bearing column near the two ends of the rotating cavity. The drive shaft is rotatably disposed inside the rotating cavity. Both ends of the drive shaft are provided with slots, and retaining springs are provided inside the slots. The two retaining springs abut against the two limiting planes respectively. The lengths of the two ends of the drive shaft extending out of the rotating cavity are the same.

[0014] Both ends of the exposed drive shaft are provided with insertion holes along their radial direction for inserting a pry bar.

[0015] Preferably, the surface of the connecting seat is provided with a connecting threaded hole, and there are two connecting threaded holes symmetrically distributed with the axis of the connecting seat as a reference. The bearing column is provided with a connecting through hole in its axial direction, and the connecting through hole corresponds to the connecting threaded hole. The upper surface of the cover plate is provided with a countersunk hole, which corresponds to the connecting through hole. A connecting bolt is inserted into the countersunk hole and is threadedly connected to the connecting threaded hole.

[0016] The upper surface of the bearing column is provided with a positioning groove, which is fitted with the cover plate with a clearance.

[0017] The output end of the geared motor is provided with a mounting threaded hole, and the center of the upper surface of the connecting seat is provided with a mounting through hole that is inserted and mated with the output end of the geared motor. The inner wall of the mounting through hole is provided with a keyway corresponding to the outer side of the output end of the geared motor. The bottom surface of the sliding cavity is provided with a bottom through hole, and a mounting bolt is provided inside the bottom through hole. The mounting bolt is threadedly connected to the mounting threaded hole.

[0018] The keyway is positioned offset from the threaded hole.

[0019] Preferably, the output end of the undulating cylinder is provided with a U-shaped frame, and a pulley is rotatably arranged inside the U-shaped frame, the pulley being in contact with the outer shell of the handheld belt sander.

[0020] Preferably, the support frame includes a fixed column, which is set on the surface of the workbench. A height-adjustable first sliding seat is provided on the outside of the fixed column. A crossbeam is provided inside the first sliding seat. The crossbeam extends horizontally toward the grinding station. A position-adjustable second sliding seat is provided at the end of the crossbeam. A support plate is provided on the bottom surface of the second sliding seat. A rotating chuck is rotatably provided on the side of the support plate.

[0021] The first sliding seat has a first insertion cavity for penetrating and fixing the column through its upper surface, and a first deformation groove is provided through its end face near the first insertion cavity, which is connected to the first insertion cavity.

[0022] The first sliding seat has a second insertion cavity through which the crossbeam column is inserted. The axis of the second insertion cavity is perpendicular to the axis of the first insertion cavity. The end face of the first sliding seat near the second insertion cavity has a second deformation groove through which the second deformation groove is connected to the second insertion cavity.

[0023] The second sliding seat has a third insertion cavity through which the crossbeam column is inserted, and the end face of the second sliding seat near the third insertion cavity has a third deformation groove through which the third deformation groove is connected to the third insertion cavity.

[0024] The first, second, and third deformation grooves each have a locking threaded hole and a locking through hole through both sides. A locking bolt is installed inside the locking through hole, and the locking bolt is threadedly connected to the locking threaded hole.

[0025] Preferably, the rotating chuck includes a fixed chuck block and a movable chuck block. The fixed chuck block is rotatably mounted on the side of the support plate via a rotating shaft. The fixed chuck block rotates in the vertical plane. The fixed chuck block and the movable chuck block are connected by threads. The opposite surfaces of the fixed chuck block and the movable chuck block are provided with clamping cavities for clamping and fixing the handheld end of the handheld belt sander.

[0026] The beneficial effects are as follows: 1. The geared motor drives the placement fixture to rotate, and the rotating chuck realizes the rotation of the handheld belt sander. In conjunction with the undulating cylinder reciprocating to support the handheld belt sander, the handheld belt sander floats and swings with the rotation of the placement fixture, so that the handheld belt sander always accurately contacts the outer contour edge of the cam, ensuring stable and uniform sanding quality.

[0027] 2. The lifting speed and amplitude of the undulating cylinder are set according to the outer edge contour of the cam, which can meet the edge grinding requirements of cams with different outer edge contours and has a wide range of applications.

[0028] 3. It can automatically grind and remove burrs from the cam edges, with high grinding efficiency, which helps to improve production efficiency;

[0029] 4. The moving component drives the geared motor to move between the clamping station and the grinding station, which facilitates the clamping of the cam and ensures the safety of the operator. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 yes Figure 1 Enlarged schematic diagram of part A;

[0033] Figure 3 This is a three-dimensional structural diagram of the fixture placement;

[0034] Figure 4 This is a three-dimensional structural diagram of the drive shaft;

[0035] Figure 5 This is the front sectional view of the fixture being placed;

[0036] Figure 6 This is a top view of the connector;

[0037] Figure 7 This is a top view of the cover plate;

[0038] Figure 8 This is a three-dimensional structural diagram of the support frame;

[0039] Figure 9 This is a three-dimensional structural diagram of the first sliding seat;

[0040] Figure 10 This is a three-dimensional structural diagram of the second sliding seat.

[0041] The annotations in the attached figures are explained as follows:

[0042] 1. Workbench; 2. Support frame; 201. Fixed column; 202. First sliding seat; 2021. First insertion cavity; 2022. First deformation groove; 2023. Second insertion cavity; 2024. Second deformation groove; 203. Crossbeam column; 204. Second sliding seat; 2041. Third insertion cavity; 2042. Third deformation groove; 205. Support plate; 3. Rotating chuck; 301. Fixed clamp; 302. Clamping cavity; 303. Movable clamp; 4. Handheld belt sander; 5. Cam; 6. Fixture placement jig; 601. Support column; 6011. Connecting through hole; 6012. Sliding cavity; 6013. Bottom through hole; 6014. Mounting bolt; 6015. Positioning groove; 6016. Rotating cavity; 6017. Avoidance 6018. Limiting plane; 602. Connecting seat; 6021. Connecting threaded hole; 6022. Mounting through hole; 603. Drive shaft; 6031. Drive lower surface; 6032. Drive higher surface; 6033. Limiting recess; 6034. Insertion hole; 6035. Slot; 6036. Snap ring; 604. Cover plate; 6041. Countersunk hole; 6042. Connecting bolt; 6043. Guide waist groove; 6044. Limiting cavity; 605. Positioning post; 6051. Limiting ring; 606. Transmission ball; 7. Gear motor; 701. Mounting threaded hole; 8. Moving assembly; 801. Drive cylinder; 802. Moving plate; 803. Slider; 804. Guide rail; 9. Irregular cylinder; 901. U-shaped frame; 902. Pulley. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0044] See Figures 1-10 As shown, the present invention provides a cam deburring and edge removal device, including a support frame 2 and a moving component 8 disposed on the surface of a worktable 1. The moving component 8 moves between a clamping station and a grinding station on the worktable 1. A reduction motor 7 is disposed on the moving end surface of the moving component 8. The output end of the reduction motor 7 is vertically upward and connected to a placement fixture 6 for clamping the cam 5.

[0045] A rotating chuck 3 for mounting a handheld belt sander 4 is rotatably mounted on the support frame 2. The sanding end of the handheld belt sander 4 extends to the sanding station. An undulating cylinder 9 is provided on the surface of the worktable 1. The output end of the undulating cylinder 9 is vertically upward and abuts against the outer shell of the handheld belt sander 4, which is used to cooperate with the rotating chuck 3 to make the handheld belt sander 4 float and swing in the vertical plane.

[0046] As an optional implementation method, such as Figure 1 As shown, the moving component 8 includes a drive cylinder 801, a guide rail 804, and a moving plate 802. The guide rail 804 is disposed on the surface of the worktable 1 and extends along the direction of the clamping station and the grinding station. The reduction motor 7 is disposed on the surface of the moving plate 802. A slider 803 is disposed on the bottom surface of the moving plate 802. The slider 803 is slidably engaged with the guide rail 804. The output end of the drive cylinder 801 is connected to the moving plate 802 and is used to drive the moving plate 802 to move back and forth between the clamping station and the grinding station. With this configuration, the slider 803 and the guide rail 804 provide limiting and guiding, so that the drive cylinder 801 drives the moving plate 802 to move between the clamping station and the grinding station of the worktable 1.

[0047] To accurately fix cam 5 without damaging its outer surface, such as... Figure 3 and 5 As shown, the fixture 6 includes a support column 601. A connecting seat 602 is provided at the bottom of the support column 601 for connecting to the output end of the geared motor 7. A cover plate 604 is provided at the upper end of the support column 601. A guide slot 6043 is provided through the cover plate 604. Multiple guide slots 6043 are provided and correspond to the mounting holes of the cam 5. The guide slots 6043 extend radially along the cover plate 604. A positioning post 605 is provided inside the guide slots 6043. A drive shaft 603 is rotatably mounted inside the support column 601. The drive shaft 603 extends radially along the support column 601. A transmission component is provided between the drive shaft 603 and the positioning post 605. The forward and reverse rotation of the drive shaft 603 drives the positioning post 605 through the transmission component. 05. When mounting the cam 5, the cam 5 is placed on the surface of the cover plate 604, with the upper end of the positioning pin 605 passing through the mounting hole of the cam 5. The drive shaft 603 is rotated, and the positioning pin 605 is driven to slide horizontally away from each other in the guide groove 6043 through the transmission component. The positioning pin 605 is in full contact with the mounting hole of the cam 5, thereby achieving the support and fixation of the cam 5. After the edge of the cam 5 is ground, the drive shaft 603 is rotated in the opposite direction, and the positioning pin 605 is driven to slide horizontally closer to each other in the guide groove 6043 through the transmission component. This releases the support of the positioning pin 605 on the mounting hole of the cam 5, making it easier to remove the cam 5 from the surface of the cover plate 604.

[0048] To facilitate the mounting and dismounting of cam 5, such as Figure 4 and 5 As shown, a sliding cavity 6012 is provided inside the bearing column 601. The sliding cavity 6012 extends axially along the bearing column 601, penetrates the upper end face of the bearing column 601, and communicates with the guide waist-shaped groove 6043. The bottom end of the positioning column 605 has an inverted conical structure and extends into the sliding cavity 6012. The cover plate 604 has a double-layer structure. A limiting cavity 6044 is provided on the bottom surface of the upper cover plate 604. A limiting ring 6051 is provided on the outer side of the positioning column 605 inside the limiting cavity 6044. The limiting ring 6051 cooperates with the limiting cavity 6044 to restrict the lifting and lowering of the positioning column 605. The transmission component includes a transmission ball 606, which is located inside the sliding cavity 6012. Located above the drive shaft 603, the transmission ball 606 abuts against the bottom ends of all the positioning posts 605. The outer circumference of the middle section of the drive shaft 603 is provided with a low driving surface 6031 and a high driving surface 6032, both extending circumferentially along the drive shaft 603 and smoothly transitioning between them. The high driving surface 6032 contacts the transmission ball 606, causing the transmission ball 606 to rise and push the positioning posts 605 to slide away from each other within the guide groove 6043. The low driving surface 6031 contacts the transmission ball 606, and under gravity, the transmission ball 606 descends, releasing the push on the positioning posts 605. The surface of the high driving surface 6032 is provided with a limiting recess 6033. The positioning ring 6051, used to limit and fix the transmission ball 606 on the drive height surface 6032, restricts the movement of the positioning pin 605 during the mounting of the cam 5 by cooperating with the limiting cavity 6044. This allows the positioning pin 605 to slide horizontally only within the guide waist-shaped groove 6043. Rotating the drive shaft 603 releases the drive height surface 6032 from the transmission ball 606, causing the transmission ball 606 to rise within the sliding cavity 6012. Since the transmission ball 606 contacts the bottom end of the positioning pin 605, it applies a horizontal force to the positioning pin 605, pushing it to slide horizontally within the guide waist-shaped groove 6043 and move away from each other. This allows the positioning pin 605 to fix the cam 5 in the mounting hole. The wall is tightened to secure the cam 5. After the transmission ball 606 aligns with the limiting recess 6033, the transmission ball 606 is kept in contact with the driving high surface 6032, thus ensuring the stability of the cam 5. After the outer edge of the cam 5 is ground, the drive shaft 603 is rotated in the opposite direction to disengage the transmission ball 606 from the limiting recess 6033 and gradually bring the transmission ball 606 into contact with the driving low surface 6031. During this process, the transmission ball 606 descends under its own weight, releasing its push on the positioning post 605, thereby releasing the tension of the positioning post 605 on the mounting hole of the cam 5 and releasing the cam 5 from its mounting, making it easier to remove the cam 5 from the surface of the cover plate 604.

[0049] To ensure that the positioning pin 605 slides inside the guide groove 6043 under the push of the transmission ball 606, such as Figure 5 As shown, the inner diameter of the sliding cavity 6012 is adapted to the outer diameter of the transmission ball 606. A clearance cavity 6017 is coaxially provided on the upper part of the sliding cavity 6012. The inner diameter of the clearance cavity 6017 is larger than the horizontal sliding stroke distance of the positioning post 605. With this configuration, the sliding cavity 6012 limits and guides the transmission ball 606, ensuring that the transmission ball 606 rises and falls vertically. The clearance cavity 6017 provides clearance for the bottom end of the positioning post 605, ensuring that the positioning post 605 slides smoothly horizontally inside the guide waist-shaped groove 6043.

[0050] A rotating cavity 6016 is provided inside the support column 601. The rotating cavity 6016 penetrates the outer circular surface of the support column 601 in the radial direction. The rotating cavity 6016 is connected to the sliding cavity 6012. Limiting planes 6018 are provided on the outer side of the support column 601 near the two ends of the rotating cavity 6016. The drive shaft 603 is rotatably disposed inside the rotating cavity 6016. Both ends of the drive shaft 603 are provided with slots 6035. Snap springs 6036 are provided inside the slots 6035. The two snap springs 6036 abut against the two limiting planes 6018 respectively. The lengths of the two ends of the drive shaft 603 extending out of the rotating cavity 6016 are the same. With the above structure, the stability of the drive shaft 603 when rotating with the support column 601 can be guaranteed, thereby ensuring the overall rotational stability of the placement fixture 6.

[0051] Both ends of the exposed drive shaft 603 are provided with insertion holes 6034 in the radial direction for inserting a pry bar. With this configuration, when the pry bar is inserted into the insertion hole 6034, the drive shaft 603 is rotated by the pry bar.

[0052] To facilitate the installation of fixture 6, such as Figure 5As shown, the surface of the connecting seat 602 is provided with two threaded holes 6021, which are symmetrically distributed with respect to the axis of the connecting seat 602. The bearing column 601 has a through hole 6011 running through it along its axial direction, corresponding to the threaded holes 6021. The upper surface of the cover plate 604 has a countersunk hole 6041, corresponding to the through hole 6011. A connecting bolt 6042 is inserted into the countersunk hole 6041, and the connecting bolt 6042 is threaded into the threaded hole 6021. The upper surface of the bearing column 601 has a positioning groove 6015, which is connected to the cover plate 604. Plate 604 has a clearance fit; the output end of the geared motor 7 is provided with a mounting threaded hole 701, and the upper surface of the connecting seat 602 is provided with a mounting through hole 6022 that is inserted into the output end of the geared motor 7. The inner wall of the mounting through hole 6022 is provided with a keyway corresponding to the outer side of the output end of the geared motor 7. The bottom surface of the sliding cavity 6012 is provided with a bottom through hole 6013, and a mounting bolt 6014 is provided inside the bottom through hole 6013. The mounting bolt 6014 is threadedly connected to the mounting threaded hole 701. When installing the fixture 6, the connecting key is placed inside the keyway on the outer side of the output end of the geared motor 7, and then the connecting seat 602 is fitted through the mounting through hole 6022. Installed on the outside of the output end of the geared motor 7, the connecting key is inserted into the keyway inside the mounting through hole 6022 to achieve the plug-in connection between the connecting seat 602 and the output end of the geared motor 7. The bearing post 601 is placed on the surface of the connecting seat 602, so that the connecting through hole 6011 corresponds to the connecting threaded hole 6021. The mounting bolt 6014 is inserted into the bottom through hole 6013 and screwed into the mounting threaded hole 701 to achieve the fixed connection between the connecting seat 602 and the output end of the geared motor 7. The drive shaft 603 is inserted into the rotating cavity 6016, so that the two retaining slots 6035 are respectively located at the two ports of the rotating cavity 6016. The two retaining springs 603 are then inserted into the rotating cavity 6016. The 6 are respectively installed in the two slots 6035, and the drive shaft 603 is installed and fixed by the cooperation of the snap ring 6036 and the limiting plane 6018; the transmission ball 606 is placed in the sliding cavity 6012 located above the drive shaft 603, and the drive shaft 603 is rotated so that the transmission ball 606 contacts the drive bottom surface 6031; the bottom end of the positioning post 605 is inserted into the guide waist-shaped groove 6043 of the lower cover plate 604, and the upper cover plate 604 is pressed onto the surface of the lower cover plate 604 so that the limiting ring 6051 is located in the limiting cavity 6044 and the upper end of the positioning post 605 passes through the guide waist-shaped groove 6043 of the upper cover plate 604, thus completing the installation of the positioning post 605;Place the cover plate 604 inside the positioning groove 6015, aligning the countersunk hole 6041 with the connecting through hole 6011. Insert the connecting bolt 6042 into the countersunk hole 6041 and the connecting through hole 6011, and then screw the connecting bolt 6042 into the connecting threaded hole 6021. This achieves a fixed connection between the cover plate 604, the bearing column 601, and the connecting seat 602, thus completing the installation of the fixture 6.

[0053] The keyway is positioned opposite to the threaded hole 6021.

[0054] The output end of the undulating cylinder 9 is equipped with a U-shaped frame 901, and a pulley 902 is rotatably installed inside the U-shaped frame 901. The pulley 902 contacts the outer shell of the handheld belt sander 4. This arrangement reduces the friction between the output end of the undulating cylinder 9 and the outer shell of the handheld belt sander 4, ensuring that the handheld belt sander 4 can smoothly undulate and swing.

[0055] The support frame 2 includes a fixed column 201, which is set on the surface of the workbench 1. A height-adjustable first sliding seat 202 is set on the outside of the fixed column 201. A crossbeam column 203 is set inside the first sliding seat 202. The crossbeam column 203 extends horizontally toward the grinding station. A position-adjustable second sliding seat 204 is set at the end of the crossbeam column 203. A support plate 205 is set on the bottom surface of the second sliding seat 204. A rotating chuck 3 is rotatably set on the side of the support plate 205. With this configuration, the height of the rotating chuck 3 can be adjusted by adjusting the height of the first sliding seat 202 on the fixed column 201. The distance between the rotating chuck 3 and the grinding station can be adjusted by adjusting the position of the second sliding seat 204 on the crossbeam column 203. Finally, the position of the handheld belt sander 4 can be adjusted to ensure that the sanding belt of the handheld belt sander 4 can accurately contact the outer edge of the cam 5 on the fixture 6.

[0056] The first sliding seat 202 has a first insertion cavity 2021 for penetrating and fixing the column 201 through its upper surface. A first deformation groove 2022 is provided through the end face of the first sliding seat 202 near the first insertion cavity 2021, and the first deformation groove 2022 communicates with the first insertion cavity 2021. A second insertion cavity 2023 for penetrating the crossbeam column 203 is provided through the side of the first sliding seat 202. The axis of the second insertion cavity 2023 is perpendicular to the axis of the first insertion cavity 2021. A second deformation groove 2024 is provided through the end face of the first sliding seat 202 near the second insertion cavity 2023, and the second deformation groove 2024 communicates with the first insertion cavity 2021. The two insertion cavities 2023 are connected; a third insertion cavity 2041 for penetrating the crossbeam column 203 is provided through the side of the second sliding seat 204, and a third deformation groove 2042 is provided through the end face of the second sliding seat 204 near the third insertion cavity 2041, and the third deformation groove 2042 is connected to the third insertion cavity 2041; locking threaded holes and locking through holes are respectively provided through the two sides of the first deformation groove 2022, the second deformation groove 2024 and the third deformation groove 2042, and a locking bolt is provided inside the locking through hole, and the locking bolt is threadedly connected to the locking threaded hole. With this configuration, when adjusting the height of the rotating chuck 3, the first insertion cavity 2023 is used to adjust the height of the rotating chuck 3. The cavity 2021 allows the first sliding seat 202 to slide and rise outside the fixed column 201, adjusting the height of the first sliding seat 202. Tightening the locking bolt on the outside of the first deformation groove 2022 narrows the first deformation groove 2022, bringing the first insertion cavity 2021 into close contact with the fixed column 201, thus fixing the first sliding seat 202 onto the fixed column 201. When adjusting the position of the rotating chuck 3, the crossbeam column 203 slides inside the second insertion cavity 2023, achieving a first adjustment of the rotating chuck 3's position. Tightening the locking bolt on the outside of the second deformation groove 2024 narrows the second deformation groove 2024, bringing the second insertion cavity 2023 into close contact with the fixed column 201. The second sliding seat 204 slides on the outside of the crossbeam column 203 through the third insertion cavity 2041, thereby achieving a double adjustment of the position of the rotating chuck 3. The locking bolt on the outside of the third deformation groove 2042 is tightened to narrow the third deformation groove 2042, so that the third insertion cavity 2041 is in close contact with the crossbeam column 203, thereby fixing the second sliding seat 204 on the outside of the crossbeam column 203. Finally, the position adjustment and fixation of the rotating chuck 3 are achieved, ensuring that the sanding belt of the handheld belt sander 4 can accurately contact the outer edge of the cam 5 on the fixture 6.

[0057] The rotating chuck 3 includes a fixed chuck 301 and a movable chuck 303. The fixed chuck 301 is rotatably mounted on the side of the support plate 205 via a rotating shaft. The fixed chuck 301 rotates in the vertical plane. The fixed chuck 301 and the movable chuck 303 are connected by threads. The opposite surfaces of the fixed chuck 301 and the movable chuck 303 are provided with a clamping cavity 302 for clamping and fixing the handheld end of the handheld belt sander 4.

[0058] With the above structure, during operation, the moving component 8 drives the reduction motor 7 and the placement fixture 6 to move to the mounting position. The operator mounts the cam 5 to be ground onto the placement fixture 6. The moving component 8 then drives the reduction motor 7 and the placement fixture 6 to move to the grinding position. The reduction motor 7 drives the placement fixture 6 to rotate. During the rotation of the cam 5, the output end of the undulating cylinder 9 extends, supporting the handheld belt sander 4 to rotate in the vertical plane away from the placement fixture 6. The output end of the undulating cylinder 9 retracts, and under the action of gravity, the handheld belt sander 4 rotates in the vertical plane closer to the placement fixture 6, thus realizing the floating and swaying of the handheld belt sander 4 in the vertical plane. As the placement fixture 6 rotates, the outer edge contour of the cam 5 changes. Based on the changing pattern of the outer contour of cam 5, the undulating cylinder 9 adaptively drives the handheld belt sander 4 to float and oscillate in the vertical plane, ensuring that the sanding belt of the handheld belt sander 4 is always in accurate contact with the outer contour of cam 5, thereby sanding the edges of the outer contour of cam 5 and removing burrs. Through the above process, automatic sanding and burr removal of the edges of cam 5 can be achieved, with good sanding effect and high efficiency, which helps to improve production efficiency. According to different outer contours of cam 5, the supporting speed and amplitude of the undulating cylinder 9 are adjusted accordingly, so that the handheld belt sander 4 is always in accurate contact with the edges of the outer contour of cam 5, which can meet the edge sanding needs of cam 5 with different outer contours and has a wide range of applications.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cam-based deburring and edge-removing device, characterized in that: It includes a support frame (2) and a moving component (8) set on the surface of the workbench (1). The moving component (8) moves between the clamping station and the grinding station of the workbench (1). A reduction motor (7) is provided on the moving end surface of the moving component (8). The output end of the reduction motor (7) is vertically upward and connected to a placement fixture (6) for clamping the cam (5). The support frame (2) is rotatably equipped with a rotating chuck (3) for mounting a handheld belt sander (4). The sanding end of the handheld belt sander (4) extends to the sanding station. The surface of the worktable (1) is equipped with an undulating cylinder (9). The output end of the undulating cylinder (9) is vertically upward and abuts against the outer shell of the handheld belt sander (4), which is used to cooperate with the rotating chuck (3) to make the handheld belt sander (4) float and swing in the vertical plane. The placement fixture (6) includes a support column (601), and a connecting seat (602) is provided at the bottom end of the support column (601) for connecting to the output end of the geared motor (7). A cover plate (604) is provided at the upper end of the support column (601). A guide waist-shaped groove (6043) is provided through the inside of the cover plate (604). Multiple guide waist-shaped grooves (6043) are provided and correspond to the mounting holes of the cam (5). The guide waist-shaped grooves (6043) run along the cover plate (604). Extending radially, a positioning post (605) is provided inside the guide waist-shaped groove (6043), and a drive shaft (603) is rotatably provided inside the bearing post (601). The drive shaft (603) extends radially along the bearing post (601), and a transmission component is provided between the drive shaft (603) and the positioning post (605). The forward and reverse rotation of the drive shaft (603) drives the positioning post (605) to slide horizontally inside the guide waist-shaped groove (6043) and move away from or closer to each other through the transmission component. The bearing column (601) is provided with a sliding cavity (6012) inside. The sliding cavity (6012) extends along the axial direction of the bearing column (601). The sliding cavity (6012) penetrates the upper end face of the bearing column (601) and is connected to the guide waist groove (6043). The bottom end of the positioning column (605) is inverted conical and extends into the sliding cavity (6012). The cover plate (604) is a double-layer structure. The bottom surface of the upper cover plate (604) is provided with a limiting cavity (6044). The positioning column (605) is provided with a limiting ring (6051) on the outside of the limiting cavity (6044). The limiting ring (6051) and the limiting cavity (6044) cooperate to restrict the lifting and lowering of the positioning column (605). The transmission component includes a transmission ball (606), which is located inside the sliding cavity (6012) and above the drive shaft (603). The transmission ball (606) abuts against the bottom ends of all the positioning pins (605). The outer circumference of the middle part of the drive shaft (603) is provided with a driving low surface (6031) and a driving high surface (6032). Both the driving low surface (6031) and the driving high surface (6032) extend circumferentially along the drive shaft (603) and transition smoothly between them. The driving high surface (6031)... 32) When in contact with the transmission ball (606), the transmission ball (606) rises and pushes the positioning post (605) to slide away from each other inside the guide waist groove (6043), and the driving low surface (6031) contacts the transmission ball (606). Under the action of gravity, the transmission ball (606) descends and releases the push on the positioning post (605). The driving high surface (6032) is provided with a limiting recess (6033) to limit and fix the transmission ball (606) on the driving high surface (6032). A rotating cavity (6016) is provided inside the bearing column (601). The rotating cavity (6016) penetrates the outer circular surface of the bearing column (601) in the radial direction. The rotating cavity (6016) is connected to the sliding cavity (6012). A limiting plane (6018) is provided on the outer side of the bearing column (601) near the two ports of the rotating cavity (6016). The drive shaft (603) is rotatably disposed inside the rotating cavity (6016). Both ends of the drive shaft (603) are provided with a slot (6035). A retaining spring (6036) is provided inside the slot (6035). The two retaining springs (6036) abut against the two limiting planes (6018) respectively. The lengths of the two ends of the drive shaft (603) extending out of the rotating cavity (6016) are the same. Both ends of the drive shaft (603) are provided with insertion holes (6034) in the radial direction for inserting a pry bar.

2. The cam deburring and edge-removing device according to claim 1, characterized in that: The moving component (8) includes a drive cylinder (801), a guide rail (804), and a moving plate (802). The guide rail (804) is set on the surface of the worktable (1) and extends along the direction of the clamping station and the grinding station. The reduction motor (7) is set on the surface of the moving plate (802). A slider (803) is set on the bottom surface of the moving plate (802). The slider (803) is slidably engaged with the guide rail (804). The output end of the drive cylinder (801) is connected to the moving plate (802) to drive the moving plate (802) to move back and forth between the clamping station and the grinding station.

3. The cam deburring and edge-removing device according to claim 1, characterized in that: The inner diameter of the sliding cavity (6012) is matched with the outer diameter of the transmission ball (606). A clearance cavity (6017) is coaxially provided on the upper part of the sliding cavity (6012). The inner diameter of the clearance cavity (6017) is larger than the horizontal sliding stroke distance of the positioning column (605).

4. The cam deburring and edge-removing device according to claim 1, characterized in that: A connecting threaded hole (6021) is provided through the surface of the connecting seat (602). There are two connecting threaded holes (6021) and they are symmetrically distributed with the axis of the connecting seat (602) as a reference. A connecting through hole (6011) is provided through the inside of the bearing column (601) along its axial direction. The connecting through hole (6011) corresponds to the connecting threaded hole (6021). A countersunk hole (6041) is provided through the upper surface of the cover plate (604). The countersunk hole (6041) corresponds to the connecting through hole (6011). A connecting bolt (6042) is inserted into the countersunk hole (6041). The connecting bolt (6042) is threadedly connected to the connecting threaded hole (6021). The upper surface of the bearing column (601) is provided with a positioning groove (6015), and the positioning groove (6015) is in clearance fit with the cover plate (604); The output end of the geared motor (7) is provided with a mounting threaded hole (701). The upper surface of the connecting seat (602) is provided with a mounting through hole (6022) that is inserted and matched with the output end of the geared motor (7). The inner wall of the mounting through hole (6022) is provided with a keyway corresponding to the outer side of the output end of the geared motor (7). The bottom surface of the sliding cavity (6012) is provided with a bottom through hole (6013). The bottom through hole (6013) is provided with a mounting bolt (6014). The mounting bolt (6014) is threadedly connected to the mounting threaded hole (701). The keyway is positioned offset from the threaded hole (6021).

5. The cam deburring and edge-removing device according to claim 1, characterized in that: The output end of the undulating cylinder (9) is provided with a U-shaped frame (901), and a pulley (902) is rotatably provided inside the U-shaped frame (901). The pulley (902) is in contact with the outer shell of the handheld belt sander (4).

6. The cam deburring and edge-removing device according to claim 1, characterized in that: The support frame (2) includes a fixed column (201), which is set on the surface of the workbench (1). A height-adjustable first sliding seat (202) is provided on the outside of the fixed column (201). A crossbeam column (203) is provided inside the first sliding seat (202). The crossbeam column (203) extends horizontally toward the grinding station. A position-adjustable second sliding seat (204) is provided at the end of the crossbeam column (203). A support plate (205) is provided on the bottom surface of the second sliding seat (204). A rotating chuck (3) is rotatably provided on the side of the support plate (205). The first sliding seat (202) has a first insertion cavity (2021) for penetrating the fixed column (201) through its upper surface. The end face of the first sliding seat (202) near the first insertion cavity (2021) has a first deformation groove (2022) through it. The first deformation groove (2022) is connected to the first insertion cavity (2021). The first sliding seat (202) has a second insertion cavity (2023) through the side for passing through the crossbeam column (203). The axis of the second insertion cavity (2023) is perpendicular to the axis of the first insertion cavity (2021). The end face of the first sliding seat (202) near the second insertion cavity (2023) has a second deformation groove (2024) through it. The second deformation groove (2024) is connected to the second insertion cavity (2023). The second sliding seat (204) has a third insertion cavity (2041) through the side for passing through the crossbeam column (203). The end face of the second sliding seat (204) near the third insertion cavity (2041) has a third deformation groove (2042) through the end. The third deformation groove (2042) is connected to the third insertion cavity (2041). The first deformation groove (2022), the second deformation groove (2024) and the third deformation groove (2042) are respectively provided with locking thread holes and locking through holes on both sides. Locking bolts are provided inside the locking through holes and are threadedly connected to the locking thread holes.

7. The cam deburring and edge-removing device according to claim 6, characterized in that: The rotating chuck (3) includes a fixed chuck (301) and a movable chuck (303). The fixed chuck (301) is rotatably mounted on the side of the support plate (205) via a rotating shaft. The fixed chuck (301) rotates in the vertical plane. The fixed chuck (301) and the movable chuck (303) are connected by threads. The opposite surfaces of the fixed chuck (301) and the movable chuck (303) are provided with clamping cavities (302) for clamping and fixing the handheld end of the handheld belt sander (4).

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