Grinding tool

Abstract

The utility model relates to the technical field of tool equipment, in particular to a grinding tool which comprises a barrel body assembly, a cover body assembly and a connecting mechanism, the connecting mechanism comprises a floating head and a plurality of hook claws, the plurality of hook claws are annularly arranged by taking the floating head as the center, each hook claw comprises a hook clamping end, a control end and a rotating shaft, and the hook claws are hinged to the cover body assembly. The control end of each hook claw is connected to the floating head, and the clamping hook end corresponds to the clamping groove of the barrel body assembly, so that the floating head drives the hook claws to rotate by means of movement of the floating head on the connecting shaft, the clamping hook ends are selectively connected to the clamping groove, and the cover body assembly is selectively and fixedly connected to the barrel body assembly. The cover body assembly and the barrel body assembly are fixedly connected or separated through the floating head and the hooking claws, the floating head controls the rotation of the multiple hooking claws at the same time so that the operation steps when the cover body assembly is connected to the barrel body assembly can be reduced, and the floating head can move in an automatic operation mode such as a mechanical arm. And the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tooling equipment technology, specifically to a grinding tool. Background Technology

[0002] Rough polishing is a grinding process used to grind products. A rough polishing barrel containing the product, iron powder, and grinding fluid is installed in a rough polishing machine. The machine rotates the barrel, ensuring full contact between the product, iron powder, and grinding fluid to grind the product surface. The rough polishing barrel consists of an inner and an outer barrel. The current rough polishing process involves adding the product, iron powder, and grinding fluid to the inner barrel, placing it inside the outer barrel, sealing it with a cap, and tightening three nuts to seal the barrel. Finally, the entire barrel is placed into the rough polishing machine for installation and fixation. This entire process is manual, inefficient, and detrimental to increasing production capacity. Furthermore, the manual tightening of the cap, where operators tighten the three nuts sequentially, can lead to uneven sealing due to human error. Summary of the Invention

[0003] The purpose of this utility model is to provide a grinding fixture that improves the working efficiency of the rough polishing barrel cover by improving the connection method, thereby helping to improve the efficiency and productivity of the rough polishing process.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a grinding fixture, including a barrel assembly, a cover assembly, and a connecting mechanism. The barrel assembly has an opening, and the cover assembly covers the opening of the barrel assembly and is fixedly connected to the barrel assembly through the connecting mechanism. The outer side of the barrel assembly has a snap-fit ​​groove, and the end face of the cover assembly opposite to the barrel assembly has a connecting shaft.

[0005] The connecting mechanism includes a floating head and multiple hooks. The floating head is movably sleeved on the connecting shaft of the cover assembly. The multiple hooks are arranged in a ring around the floating head. Each hook includes a hook end, a control end, and a rotating shaft located between the hook end and the control end. The hook is hinged to the cover assembly, and the rotating shaft is formed at the hinge. The control end of each hook is connected to the floating head. The hook end corresponds to the snap-fit ​​groove of the barrel assembly. Thus, the floating head drives the hook to rotate by moving on the connecting shaft, so that the hook end selectively connects to the snap-fit ​​groove, thereby selectively fixing the cover assembly to the barrel assembly.

[0006] In one embodiment, the floating head is movably sleeved on the connecting shaft via a threaded connector. The threaded connector and the connecting shaft are threadedly connected. The floating head has a connecting hole. The threaded connector includes an operating part and a transmission part. The transmission part is rotatably inserted through the connecting hole, causing the floating head and the threaded connector to form a relative rotational connection. The operating part is exposed for external force to be applied to the threaded connector to rotate. The threaded connector drives the floating head to move axially on the connecting shaft by means of its threaded connection with the connecting shaft.

[0007] In one embodiment, along the direction from the transmission part to the operating part of the threaded connector, the connecting hole has a variable diameter section with a gradually decreasing inner diameter, and the transmission part of the threaded connector is provided with an outward protrusion section. The outer diameter of the outward protrusion section corresponds to the inner diameter of the variable diameter section. Along the direction of the gradually decreasing inner diameter of the connecting hole, the outward protrusion section and the variable diameter section cooperate to form a synchronous translational connection between the floating head and the threaded connector.

[0008] In one embodiment, the threaded connector has a groove surrounding its outer surface, and the groove has a retaining ring disposed at the other end of the floating head away from the reducing section. In the radial direction of the threaded connector, the retaining ring protrudes to abut against the end face of the floating head. The retaining ring cooperates with the outer protruding section of the threaded connector so that the floating head and the threaded connector form a connection relationship of synchronous translation along the axial direction of the threaded connector.

[0009] In one embodiment, the external force is applied to a robotic arm or an operator.

[0010] In one embodiment, the floating head has a groove, the control end of the hook is inserted into the groove, and there is a gap between the inner wall of the groove and the outer wall of the control end, so as to realize the connection between the control end and the floating head.

[0011] In one embodiment, the cover assembly is provided with a U-shaped mounting base, and the hook is hinged to the U-shaped mounting base by a pin, forming a hinged connection between the hook and the cover assembly. The central axis of the pin forms the pivot of the hook, and the pivot of the hook is arranged along the edge of the cover assembly.

[0012] In one embodiment, there are three hooks.

[0013] In one embodiment, the barrel assembly includes an inner barrel and an outer barrel, and the snap-fit ​​groove is disposed on the outer barrel, so that the floating head moves away from the barrel assembly to drive the hook end to connect and engage with the snap-fit ​​groove.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a floating head and hooks to connect and fix the lid assembly to the barrel assembly or detach it. Multiple hooks are connected to the floating head, and the movement of the floating head can control the simultaneous movement of multiple hooks, making the force on the lid assembly more even and improving the sealing between the lid assembly and the barrel assembly. Furthermore, controlling the rotation of multiple hooks simultaneously by the floating head reduces the number of operation steps when connecting the lid assembly to the barrel assembly, thus improving work efficiency. The floating head can be moved by automated operations such as robotic arms, further improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0016] Figure 2 This is a top view of an embodiment of the present utility model.

[0017] Figure 3 yes Figure 2 AA sectional view.

[0018] Figure 4 yes Figure 3 Diagram of the grappling hook opening structure.

[0019] Figure 5 yes Figure 4 An exploded view from a specific perspective.

[0020] The components include: 1. Barrel body assembly, 11. Inner barrel, 12. Outer barrel, 121. Snap-fit ​​groove, 2. Lid assembly, 21. Outer cover, 22. Sealing gasket, 23. Connecting shaft, 3. Connecting mechanism, 31. Hook, 311. Hook end, 312. Control end, 313. Rotating shaft, 32. Floating head, 321. Variable diameter section, 322. Groove, 33. Threaded connector, 331. Operating part, 332. Transmission part, 3320. Outer protrusion section, 34. Retaining ring, 35. U-shaped mounting base, and 36. Pin. Detailed Implementation

[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0022] See Figures 1 to 5As shown, this utility model discloses a grinding fixture, including a barrel assembly 1, a cover assembly 2, and a connecting mechanism 3. The barrel assembly 1 has an opening, and the cover assembly 2 covers the opening of the barrel assembly 1 and is fixedly connected to the barrel assembly 1 through the connecting mechanism 3. The barrel assembly 1 includes an inner barrel 11 and an outer barrel 12. In this embodiment, the grinding fixture is a rough polishing barrel for rough polishing. The inner barrel 11 contains the product, iron powder, and grinding fluid, and is placed inside the outer barrel 12. The cover assembly 2 includes an outer cover 21 and a sealing gasket 22 that are fixedly connected. The sealing gasket 22 covers the opening of the inner barrel 11, and the cover assembly 2 and the barrel assembly 1 are fixedly connected by the hook 31 of the connecting mechanism 3 engaging with the outer barrel 12. However, the grinding fixture is not limited to this and can also be a container for other grinding operations, such as a fine polishing barrel.

[0023] The connecting mechanism 3 includes a floating head 32 and three hooks 31. The floating head 32 is movably sleeved on the connecting shaft 23 of the cover assembly 2. The connecting shaft 23 is a structure formed by protruding from the end face of the outer cover 21 away from the barrel assembly 1. The three hooks 31 are arranged in a ring around the floating head 32. Each hook 31 includes a hook end 311, a control end 312, and a rotating shaft 313 located between the hook end 311 and the control end 312. The hook 31 is hinged to the cover assembly 2, and a rotating shaft 313 is formed at the hinge. The control end 312 of each hook 31 is connected to the floating head 32. The hook end 311 corresponds to the snap-fit ​​groove 121 of the barrel assembly 1. The snap-fit ​​groove is provided in the outer barrel 12. Thus, the floating head 32 drives the hook 31 to rotate by moving on the connecting shaft 23, so that the hook end 311 selectively connects to the snap-fit ​​groove 121 of the outer barrel 12, so that the cover assembly 2 is selectively fixedly connected to the barrel assembly 1.

[0024] When the floating head 32 moves away from the barrel assembly 1, it drives the hook 31 to rotate around the shaft 313, and the hook end 311 moves towards the outer wall of the outer barrel 12 and engages with the engagement groove 121 of the outer barrel 12, thus fixing the lid assembly 2 to the barrel assembly 1. When the floating head 32 moves towards the barrel assembly 1, it drives the hook 31 to rotate around the shaft 313, and the hook end 311 moves away from the outer wall of the outer barrel 12 and disengages from the engagement groove 121 of the outer barrel 12, so that the lid assembly 2 can leave the barrel assembly 1.

[0025] The floating head 32 is movably sleeved on the connecting shaft 23 via a threaded connector 33. The threaded connector 33 and the connecting shaft 23 are threadedly connected. The floating head 32 has a connecting hole 320. The threaded connector 33 includes an operating part 331 and a transmission part 332. The transmission part 332 is rotatably inserted through the connecting hole 31, forming a relative rotational connection between the floating head 32 and the threaded connector 33. The operating part 331 is used to apply force from an external force-applying object to rotate the threaded connector 33. The threaded connector 33 drives the floating head 32 to move axially on the connecting shaft 23 by means of its threaded connection with the connecting shaft 23. When it is necessary to move the pawl 31, only the operation of the threaded connector 33 is needed to achieve its rotation. In order to achieve the axial movement of the floating head 32 on the connecting shaft 23, the rotation of the threaded connector 33 is converted into the translation of the floating head 32 by means of the threaded connector 33. The operation is simple and reliable, and the threaded connector 33 can be stopped at any appropriate position, so that the movement distance of the floating head 32 on the connecting shaft 23 can be controlled more precisely. In other embodiments, the floating head 32 can be directly slidably connected to the connecting shaft 23, and the axial movement of the floating head 32 on the connecting shaft 23 can be achieved by the sliding connection between the two.

[0026] In this process, the external force is applied by a robotic arm or an operator. Since a single floating head 32 can control multiple claws 31 to move simultaneously, even if the operator manually operates the operating part 331 of the threaded connector 33, compared to the prior art of sequentially locking three nuts, the workload of the operator can be reduced and work efficiency improved. Furthermore, using a robotic arm helps to automate the entire grinding process, further reducing the workload of the operator and improving work efficiency. Automated operation also allows for more precise control of the floating head 32, which helps ensure the reliability of the grinding operation.

[0027] In this embodiment, the operating part 331 is a nut structure, and the threaded connector 33 can be rotated by a tool such as a wrench that can rotate the operating part 331.

[0028] To achieve a relative rotational connection between the floating head 32 and the threaded connector 33, so that the rotation of the threaded connector 33 can drive the floating head 32 to move axially along the connecting shaft 23, this embodiment achieves this through the following structure: Along the direction from the transmission part 332 of the threaded connector 33 to the operating part 331, the connecting hole 320 has a variable diameter section 321 with a gradually decreasing inner diameter. The transmission part 332 of the threaded connector 33 is provided with an outwardly protruding section 3320, the outer diameter of which corresponds to the inner diameter of the variable diameter section 321. Along the direction of the gradually decreasing inner diameter of the connecting hole 320, the outwardly protruding section 3320 and the variable diameter section 321 cooperate to make the floating head 32 and the threaded connector 33 form a synchronous translational connection relationship. The threaded connector 33 has a groove surrounding its outer surface. The groove has a retaining ring 34. The retaining ring 34 is located at the other end of the floating head 32 away from the reducing section 321. In the radial direction of the threaded connector 33, the retaining ring 34 protrudes to abut against the end face of the floating head 32. The retaining ring 34 cooperates with the outer protrusion 3320 of the threaded connector 33 so that the floating head 32 and the threaded connector 33 form a connection relationship of synchronous translation along the axial direction of the threaded connector 33.

[0029] In this embodiment, the inner diameter of the variable diameter section 321 decreases in the direction opposite to that of the barrel assembly 1, so that the operating part 331 is exposed on the side away from the barrel assembly 1, which facilitates the robot arm to extend from the direction away from the grinding fixture to apply force and control the rotation of the claw 31. In other embodiments, it is also feasible to set the variable diameter section 321 at the other end of the floating head 32 and decrease the inner diameter in the opposite direction.

[0030] The floating head 32 has a groove 322, and the control end 312 of the hook 31 is inserted into the groove 322 to connect the control end 312 with the floating head 32. Since the hook 31 rotates and the movement trajectory of the control end 312 is arc-shaped, while the floating head 32 moves linearly, the insertion of the control end 312 into the groove 322 enables the transmission connection between the two. In addition, there is a gap between the inner wall of the groove 322 and the outer wall of the control end 312 to prevent interference between the control end 312 and the groove 322 during transmission.

[0031] The cover assembly 1 is provided with a U-shaped mounting base 35. The hook 31 is hinged to the U-shaped mounting base 35 by a pin 36, forming a hinged connection between the hook 31 and the cover assembly 1. The central axis of the pin 36 forms the rotation shaft 313 of the hook 31. The rotation shaft 313 of the hook 31 is arranged along the edge of the cover assembly 1.

[0032] In the above embodiment, there are three hooks 31, which are evenly arranged in a ring around the floating head 32. In other embodiments, the number of hooks 31 is not limited to three, but can be two oppositely arranged or four arranged in a ring.

[0033] The workflow of this utility model is as follows:

[0034] When it is necessary to fix the cover assembly 2 to the barrel assembly 1, the hook 31 needs to be as follows: Figure 3 The locking groove 121 of the outer barrel 12 is closed and hooked. At this time, the robot arm is operated to rotate the threaded connector 33 in the forward direction, so that the floating head 32 moves away from the barrel assembly 1, driving the hook 31 to rotate around the rotating shaft 313. The locking end 311 moves towards the outer wall of the outer barrel 12 and locks into the locking groove 121 of the outer barrel 12, so as to realize the fixed connection of the cover assembly 2 to the barrel assembly 1.

[0035] When it is necessary to remove the cover assembly 2 from the barrel assembly 1, the hook 31 needs to be as follows: Figure 4 and Figure 5 As shown, the locking groove 121 of the outer barrel 12 is opened and disengaged. At this time, the manipulator is operated to rotate the threaded connector 33 in the opposite direction. When the floating head 32 moves towards the barrel assembly 1, it drives the hook 31 to rotate around the rotating shaft 313. The locking end 311 moves away from the outer wall of the outer barrel 12 and disengages from the locking groove 121 of the outer barrel 12, so that the cover assembly 2 can leave the barrel assembly 1.

[0036] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that the remaining undescribed parts are prior art, and that all changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A grinding fixture, characterized in that: The device includes a barrel assembly, a lid assembly, and a connecting mechanism. The barrel assembly has an opening, and the lid assembly covers the opening of the barrel assembly and is fixedly connected to the barrel assembly through the connecting mechanism. The outer side of the barrel assembly has a snap-fit ​​groove, and the lid assembly has a connecting shaft on the end face opposite to the barrel assembly. The connecting mechanism includes a floating head and multiple hooks. The floating head is movably sleeved on the connecting shaft of the cover assembly. The multiple hooks are arranged in a ring around the floating head. Each hook includes a hook end, a control end, and a rotating shaft located between the hook end and the control end. The hook is hinged to the cover assembly, and the rotating shaft is formed at the hinge. The control end of each hook is connected to the floating head. The hook end corresponds to the snap-fit ​​groove of the barrel assembly. Thus, the floating head drives the hook to rotate by moving on the connecting shaft, so that the hook end selectively connects to the snap-fit ​​groove, thereby selectively fixing the cover assembly to the barrel assembly.

2. The grinding fixture according to claim 1, characterized in that: The floating head is movably sleeved on the connecting shaft via a threaded connector. The threaded connector and the connecting shaft are threadedly connected. The floating head has a connecting hole. The threaded connector includes an operating part and a transmission part. The transmission part is rotatably inserted through the connecting hole, so that the floating head and the threaded connector form a relative rotational connection. The operating part is exposed for external force to be applied to the threaded connector to rotate. The threaded connector drives the floating head to move axially on the connecting shaft by means of its threaded connection with the connecting shaft.

3. A grinding fixture according to claim 2, characterized in that: Along the direction from the transmission part to the operating part of the threaded connector, the connecting hole has a variable diameter section with a gradually decreasing inner diameter. The transmission part of the threaded connector is provided with an outward protrusion section, the outer diameter of which corresponds to the inner diameter of the variable diameter section. Along the direction of the gradually decreasing inner diameter of the connecting hole, the outward protrusion section and the variable diameter section cooperate to form a synchronous translational connection between the floating head and the threaded connector.

4. A grinding fixture according to claim 3, characterized in that: The threaded connector has a groove surrounding its outer surface, and a retaining ring is provided in the groove. The retaining ring is located at the other end of the floating head away from the variable diameter section. In the radial direction of the threaded connector, the retaining ring protrudes to abut against the end face of the floating head. The retaining ring cooperates with the outer protruding section of the threaded connector so that the floating head and the threaded connector form a connection relationship of synchronous translation along the axial direction of the threaded connector.

5. A grinding fixture according to claim 2, characterized in that: The external force is applied to a robotic arm or an operator.

6. A grinding fixture according to claim 1, characterized in that: The floating head has a groove, and the control end of the hook is inserted into the groove. The inner wall of the groove and the outer wall of the control end have a gap, so as to realize the connection between the control end and the floating head.

7. A grinding fixture according to claim 1, characterized in that: The cover assembly is provided with a U-shaped mounting base, and the hook is hinged to the U-shaped mounting base by a pin, forming a hinged connection between the hook and the cover assembly. The central axis of the pin forms the rotation axis of the hook, and the rotation axis of the hook is arranged along the edge of the cover assembly.

8. A grinding fixture according to claim 1, characterized in that: There are three hooks.

9. A grinding fixture according to claim 1, characterized in that: The barrel assembly includes an inner barrel and an outer barrel. The snap-fit ​​groove is disposed on the outer barrel, so that the floating head moves away from the barrel assembly and drives the snap hook end to connect and engage with the snap-fit ​​groove.

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