Upper clamping structure of cup body polishing equipment preventing clamping overload

Abstract

The utility model discloses a cup body polishing equipment anti -clamping overload's upper clamp structure, including dust cover shell, lift driver, pivot and upper clamp, be equipped with the cavity in dust cover shell, and lift driver and pivot are all contained in the cavity, and the pivot rotatablely is connected on lift driver, and the bottom of dust cover shell is provided with the through -hole that only supplies the pivot to project, and the lower extreme of pivot projects dust cover shell from the through -hole, and with the upper clamp fixed connection that is at dust cover shell outside, whole lift driver liftable movable setting in the cavity, and the cavity is equipped with elastic part, and elastic part acts on lift driver and has the elastic force of drive lift driver to move down, and lift driver can be according to the height of cup body and have the elastic floating in vertical direction, to make the upper clamp keep clamping at the same time, will not exert the overload pressure to cup body, avoid cup body top to be under the condition of big pressure and collapse deformation.

Description

Technical Field

[0001] This utility model relates to a cup processing equipment, and more particularly to an upper clamping structure for preventing overload in a cup polishing equipment. Background Technology

[0002] A thermos cup is generally a water container made of ceramic or stainless steel with a vacuum layer. It has a lid on top that is tightly sealed. The vacuum insulation layer slows down the heat dissipation of the liquid inside, thus achieving the purpose of keeping the water warm. After the stainless steel thermos cup body is formed, the outer surface of the stainless steel cup body is polished by a cup body polishing machine. The cup body polishing machine includes a clamping assembly and a polishing mechanism. The clamping assembly clamps the cup body and rotates it, while the polishing mechanism polishes the outer surface of the cup body.

[0003] For example, the self-braking cup body rotating feeding structure disclosed in patent CN220575535U includes a rotating table, several clamping stations rotatably mounted on the rotating table, and a second driving device for driving the clamping stations to rotate. The clamping station includes a lower clamping member rotatably mounted on the rotating table. An upper clamping member is provided on the rotating table above the lower clamping member and opposite to the lower clamping member. The upper clamping member can move up and down relative to the rotating table. A lifting cylinder is provided on the rotating table to drive the upper clamping member to move up and down. When it is necessary to clamp the cup body of the thermos cup to be polished, the cup body is placed on the lower clamping member, and the upper clamping member moves down to press on the cup body and cooperates with the lower clamping member to clamp the cup body.

[0004] In the aforementioned patent, the upper clamp is driven by a cylinder to move downward and press against the upper end of the cup body in a rigid contact, and the downward stroke is fixed. However, the thermos cups that need to be clamped have different height dimensions. When the height of the thermos cup body is too high, the upper clamp presses down on the top of the cup body, and the top of the cup body will be subjected to greater pressure, thereby crushing and deforming the cup body. Utility Model Content

[0005] Based on the fact that the upper clamp is driven by a cylinder to move downward and press against the upper end of the cup body in a rigid contact, and the downward stroke is fixed, while the insulated cups to be clamped have different height dimensions, when the height of the insulated cup body is too high, the upper clamp presses down on the top of the cup body, and the top of the cup body will be subjected to greater pressure, thereby crushing and deforming the cup body. Therefore, this utility model provides an upper clamp structure for cup polishing equipment to prevent clamping overload.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an upper clamping structure for anti-overload clamping of a cup polishing equipment, including a dust cover, a lifting driver, a rotating shaft, and an upper clamping device for cooperating with a lower clamping device. The dust cover has a cavity, in which the lifting driver and the rotating shaft are housed. The rotating shaft is rotatably connected to the lifting driver and can be driven by the lifting driver to move vertically. The bottom of the dust cover has a through hole for the rotating shaft to extend out. The lower end of the rotating shaft extends out of the dust cover through the through hole and is fixedly connected to the upper clamping device located outside the dust cover. The entire lifting driver is movably and vertically arranged in the cavity. An elastic element is provided in the cavity. The elastic element acts on the lifting driver and has a spring force that drives the lifting driver to move downward.

[0007] A further preferred technical solution of this utility model is as follows: the lifting driver is a lifting cylinder, which includes a cylinder body and a piston rod facing downwards on the cylinder body. A rotating shaft is rotatably connected to the lower end of the piston rod. A guide post is fixedly provided on the top of the cylinder body. A guide hole communicating with the upper surface of the dust cover is opened on the top of the cavity. The guide post passes through the guide hole and slides with the guide hole to guide the vertical movement of the lifting cylinder. A limiting part is provided on the guide post, which limits the movement above the top of the dust cover. The elastic element is a support spring, which is sleeved on the guide post and supported between the top of the cavity and the top of the cylinder body.

[0008] A further preferred technical solution of this utility model is as follows: the lower end of the piston rod is fixedly provided with an adapter seat, the adapter seat is provided with a channel for installing a bearing, the rotating shaft is inserted into the channel and connected to the bearing, the cavity includes a first cavity for guiding the movement of the adapter seat, a first sliding sleeve is fixedly provided in the first cavity, and the adapter seat is accommodated and slides in the first sliding sleeve.

[0009] A further preferred embodiment of this utility model is that the limiting part is a limiting nut threaded onto the guide post.

[0010] A further preferred embodiment of this utility model is: a first annular groove is provided on the guide post, and the limiting part is a retaining spring that is engaged in the first annular groove.

[0011] A further preferred technical solution of this utility model is as follows: the dust cover includes an upper shell, a lower shell and a first cover plate. The upper shell and the lower shell are assembled and fixedly connected by screws. A second cavity for accommodating the lifting cylinder is formed inside the upper shell. A first cavity is formed inside the lower shell. The end of the lower shell away from the upper shell has a first opening of the first cavity. The first cover plate covers the first opening and is fixed to the lower shell by screws. A through hole is opened on the first cover plate.

[0012] A further preferred embodiment of this utility model is as follows: a second sliding sleeve is inserted and fixed inside the guide hole, and the guide post passes through the second sliding sleeve and slides in cooperation with the second sliding sleeve.

[0013] A further preferred embodiment of this utility model is that the rotating shaft is fitted to the inner wall of the through hole.

[0014] A further preferred embodiment of this utility model is as follows: the adapter is a cylindrical structure, the shape of the inner cavity of the first sliding sleeve is adapted to the shape of the adapter, and the centerlines of the guide post, the adapter, and the rotating shaft coincide.

[0015] A further preferred embodiment of this utility model is: a protruding ring is provided on the inner surface of the first cover plate to fit into the lower end of the first sliding sleeve.

[0016] Compared with the prior art, the advantage of this utility model is that the entire lifting driver is designed to be able to move up and down within the cavity, and an elastic element is provided within the cavity to drive the lifting driver to move down and reset. This allows the lifting driver to elastically float in the vertical direction according to the height of the cup when the upper clamp presses down to cooperate with the lower clamp. This ensures that the upper clamp does not apply excessive pressure to the cup while maintaining clamping, thus preventing the top of the cup from being subjected to excessive pressure that could cause the cup to collapse and deform. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 for Figure 2 A magnified view of part A; Figure 4 for Figure 2 A magnified view of section B; Figure 5 This is a cross-sectional schematic diagram of how the present invention clamps a cup with a relatively low height. Figure 6 This is a cross-sectional schematic diagram of how the present invention clamps a cup with a relatively high height.

[0019] In the diagram: 1. Dustproof cover; 2. Upper shell; 3. Lower shell; 4. First cover plate; 5. Rotating shaft; 6. Limiting part; 7. Guide post; 8. Second cavity; 9. Cylinder body; 10. Piston rod; 11. Connecting block; 12. First cavity; 13. Adapter seat; 14. Guide rod; 15. Mating hole; 16. Lifting cylinder; 17. Guide hole; 18. First annular groove; 19. Snap ring; 20. Second sliding sleeve; 21. Support spring; 22. Second cover plate; 23. Fourth annular groove; 24. Bearing; 25. Channel; 26. Step; 27. Third annular groove; 28. Through hole; 29. ​​Protruding ring; 30. First annular protruding edge; 31. First sliding sleeve; 32. Second annular groove; 33. Seat body; 34. Cup body; 35. Upper clamp; 36. Cavity. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0022] Figures 1-6 As shown, the upper clamping structure of the cup polishing equipment for preventing clamping overload includes a dust cover 1, a lifting driver, a rotating shaft 5, and an upper clamp 35 for cooperating with the lower clamping device for clamping. The dust cover 1 has a cavity 36 inside, in which the lifting driver and the rotating shaft 5 are both housed. The rotating shaft 5 is rotatably connected to the lifting driver and can be driven by the lifting driver to move up and down in the vertical direction. The bottom of the dust cover 1 has a through hole 28 for the rotating shaft 5 to extend out. The lower end of the rotating shaft 5 extends out of the dust cover 1 through the through hole 28 and is fixedly connected to the upper clamp 35 located outside the dust cover 1.

[0023] By placing the lifting drive and the rotating shaft 5 inside the dust cover 1, the dust cover 1 can block external dust and debris generated during the polishing process, preventing dust and processing debris from entering the lifting drive and the rotating connection between the lifting drive and the rotating shaft 5, thus ensuring smooth operation of the equipment.

[0024] The entire lifting drive is movably mounted in the cavity 36. The cavity 36 is equipped with an elastic element, which acts on the lifting drive and has a spring force that drives the lifting drive to move downward.

[0025] Figure 5 , Figure 6As shown, during clamping operation, the cup body 34 is placed on the lower clamp. The lifting driver drives the rotating shaft 5 and the upper clamp 35 to move downwards by a set stroke, so that the upper clamp 35 presses firmly against the top of the cup body 34, cooperating with the lower clamp to clamp the cup body 34. If clamping a cup body 34 with a lower height, the lifting driver drives the rotating shaft 5 and the upper clamp 35 to move downwards by a set stroke, and the upper clamp 35 is just touching the top of the cup body 34. At this time, the lifting driver does not need to overcome the elastic force of the elastic element to move upwards relative to the dust cover 1. If clamping a cup body 34 with a higher height, the lifting driver drives the rotating shaft 5 and the upper clamp 35 to move downwards before the upper clamp 35 has already pressed against the top of the cup body 34. At this time, the lifting driver continues to drive the rotating shaft 5 and the upper clamp 35 to move downwards by a set stroke. The upper clamp 35 moves down until the rotating shaft 5 and the upper clamp 35 move down to the set stroke. After the upper clamp 35 contacts the cup body 34, the downward movement of the upper clamp 35 will increase the pressure on the cup body 34. While the lifting driver drives the upper clamp 35 to move down and press on the cup body 34, the lifting driver is also subjected to a reaction force. After being subjected to the reaction force, the lifting driver overcomes the elastic force of the elastic element and moves upward so that the upper clamp 35 maintains a suitable pressure on the cup body 34 and avoids the pressure overload from crushing and deforming the cup body 34.

[0026] Figure 2 , Figure 3 As shown, the lifting actuator is a lifting cylinder 16, which includes a cylinder body 9 and a piston rod 10 facing downwards on the cylinder body 9. A rotating shaft 5 is rotatably connected to the lower end of the piston rod 10. A guide post 7 is fixedly provided on the top of the cylinder body 9. A guide hole 17 communicating with the upper surface of the dust cover 1 is provided on the top of the cavity 36. The guide post 7 passes through the guide hole 17 and slides with the guide hole 17 to guide the vertical movement of the lifting cylinder 16. A limiting part 6 is provided on the guide post 7, which is limited above the top of the dust cover 1. The elastic element is a support spring 21, which is sleeved on the guide post 7 and supported between the top of the cavity 36 and the top of the cylinder body 9. When in an unclamped state, the support spring 21 pushes the lifting cylinder 16 downwards so that the limiting part 6 abuts against the top of the dust cover 1. At this time, the lifting cylinder 16 is in the initial position. When in a clamped state, the lifting cylinder 16 can move upwards and squeeze the support spring 21 to retract.

[0027] The limiting part 6 is a limiting nut threadedly connected to the guide post 7; or in another embodiment, the guide post 7 is provided with a first annular groove 18, and the limiting part 6 is a retaining spring 19 that is engaged in the first annular groove 18.

[0028] A second sliding sleeve 20 is inserted and fixed in the guide hole 17. The guide post 7 passes through the second sliding sleeve 20 and slides with the second sliding sleeve 20. The second sliding sleeve 20 can be made of wear-resistant material to play a wear-resistant role, and the second sliding sleeve 20 is set to reduce the gap between the guide post 7 and the guide hole 17.

[0029] The lower end of the piston rod 10 is fixedly provided with an adapter seat 13. The adapter seat 13 is provided with a channel 25 for installing the bearing 24. The rotating shaft 5 is inserted into the channel 25 and connected to the bearing 24. The cavity 36 includes a first cavity 12 for guiding the movement of the adapter seat 13. A first sliding sleeve 31 is fixedly provided in the first cavity 12. The adapter seat 13 is accommodated in the first sliding sleeve 31 and slides. The cooperation between the guide post 7 and the guide hole 17 and the sliding cooperation between the adapter seat 13 and the first sliding sleeve 31 position the upper and lower sides of the lifting cylinder 16 so that the lifting cylinder 16 moves more stably.

[0030] A connecting block 11 is fixedly provided on the end of the piston rod 10 of the lifting cylinder 16. The connecting block 11 is used to fix it to the adapter 13. A guide rod 14 is fixedly provided on the connecting block 11. The cylinder body 9 is provided with a mating hole 15 that slides with the guide rod 14. The mating hole 15 and the guide rod 14 make it less likely for the connecting block 11 to vibrate during movement.

[0031] The adapter 13 has a cylindrical structure. The shape of the inner cavity of the first sliding sleeve 31 is adapted to the shape of the adapter 13. The centerlines of the guide post 7, the adapter 13 and the rotating shaft 5 coincide.

[0032] The adapter 13 includes a cylindrical seat 33 and a second cover plate 22. The seat 33 has a channel 25 axially formed at its center. The channel 25 passes through the upper and lower ends of the seat 33 to form openings at both ends. The second cover plate 22 is fixedly connected to the upper end of the seat 33 by screws to cover the opening at the upper end. The second cover plate 22 is fixedly connected to the connecting block 11 by screws.

[0033] Figure 4 As shown, a first annular protrusion 30 protrudes from the middle of the channel 25, dividing the channel 25 into upper and lower bearing grooves. Bearings 24 are installed in both bearing grooves, and the bearings 24 abut against the upper and lower surfaces of the first annular protrusion 30. A second annular retaining groove 32 is provided in the upper bearing groove, where a retaining spring, positioned above the bearing 24, is engaged. A third annular retaining groove 27 is provided in the lower bearing groove, where a retaining spring, positioned below the bearing 24, is engaged. A retaining ring is used to fix the bearing 24 in the upper and lower bearing grooves. The rotating shaft 5 passes through the center of the bearing 24 and is connected to the bearing 24. The rotating shaft 5 has a step 26 that abuts against the bottom of the inner ring of the bearing in the lower bearing groove. The rotating shaft 5 has a fourth annular groove 23, in which a retaining ring is engaged. The retaining ring abuts against the top of the inner ring of the bearing 24 in the upper bearing groove to restrict the axial relative movement between the rotating shaft 5 and the bearing 24. The rotating shaft 5 passes downward through the opening at the lower end of the channel 25 and extends out through the through hole 28.

[0034] The dust cover 1 includes an upper shell 2, a lower shell 3, and a first cover plate 4. The upper shell 2 and the lower shell 3 are assembled and fixedly connected by screws. The upper shell 2 has a second cavity 8 for accommodating the lifting cylinder 16. The lower shell 3 has a first cavity 12. The lower shell 3 has a first opening of the first cavity 12 at the end away from the upper shell 2. The first cover plate 4 covers the first opening and is fixed to the lower shell 3 by screws. A through hole 28 is opened on the first cover plate 4.

[0035] The inner surface of the first cover plate 4 is provided with a protruding ring 29 that fits into the lower end of the first sliding sleeve 31, so as to improve the sealing of the connection between the first cover plate 4 and the lower shell 3.

[0036] The rotating shaft 5 is fitted to the inner wall of the through hole 28; or a spacer is provided between the rotating shaft 5 and the inner wall of the through hole 28 to compensate for the gap, so as to reduce the entry of dust or processing debris into the dust cover 1 from the gap between the rotating shaft 5 and the through hole 28.

[0037] The above describes the anti-overload upper clamping structure of the cup polishing equipment provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An overload-preventing upper clamping structure for a cup polishing equipment, comprising a dust cover, a lifting driver, a rotating shaft, and an upper clamping fixture for cooperating with a lower clamping fixture. The dust cover has a cavity, in which the lifting driver and the rotating shaft are housed. The rotating shaft is rotatably connected to the lifting driver and can be driven by the lifting driver to move vertically up and down. The bottom of the dust cover has a through hole for the rotating shaft to extend out. The lower end of the rotating shaft extends out of the dust cover through the through hole and is fixedly connected to the upper clamping fixture located outside the dust cover. The entire lifting drive is movably mounted in the cavity, and the cavity is provided with an elastic element that acts on the lifting drive and has a spring force that drives the lifting drive to move downward.

2. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 1, characterized in that, The lifting actuator is a lifting cylinder, which includes a cylinder body and a piston rod facing downwards. A rotating shaft is rotatably connected to the lower end of the piston rod. A guide post is fixed to the top of the cylinder body. A guide hole communicating with the upper surface of the dust cover is opened on the top of the cavity. The guide post passes through the guide hole and slides with the guide hole to guide the vertical movement of the lifting cylinder. A limiting part is provided on the guide post, which limits the movement above the top of the dust cover. The elastic element is a support spring, which is sleeved on the guide post and supported between the top of the cavity and the top of the cylinder body.

3. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 2, characterized in that, The lower end of the piston rod is fixedly provided with an adapter seat, and the adapter seat is provided with a channel for installing a bearing. The rotating shaft is inserted into the channel and connected to the bearing. The cavity includes a first cavity for guiding the movement of the adapter seat. A first sliding sleeve is fixedly provided in the first cavity, and the adapter seat is accommodated and slides in the first sliding sleeve.

4. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 2, characterized in that, The limiting part is a limiting nut that is threaded onto the guide post.

5. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 2, characterized in that, The guide post is provided with a first annular groove, and the limiting part is a retaining spring that is engaged in the first annular groove.

6. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 3, characterized in that, The dust cover includes an upper shell, a lower shell, and a first cover plate. The upper shell and the lower shell are assembled and fixedly connected by screws. A second cavity for accommodating the lifting cylinder is formed inside the upper shell, and a first cavity is formed inside the lower shell. The lower shell has a first opening of the first cavity at the end away from the upper shell. The first cover plate covers the first opening and is fixed to the lower shell by screws. A through hole is opened on the first cover plate.

7. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 2, characterized in that, A second sliding sleeve is inserted and fixed inside the guide hole, and the guide post passes through the second sliding sleeve and slides in cooperation with the second sliding sleeve.

8. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 1, characterized in that, The rotating shaft is fitted to the inner wall of the through hole.

9. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 3, characterized in that, The adapter is a cylindrical structure, and the shape of the inner cavity of the first sliding sleeve is adapted to the shape of the adapter. The centerlines of the guide post, the adapter, and the rotating shaft coincide.

10. The upper clamping structure for preventing overload clamping in the cup polishing equipment according to claim 6, characterized in that, The inner surface of the first cover plate is provided with a protruding ring that fits into the lower end of the first sliding sleeve.

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