Vacuum cup polishing clamp

Abstract

The utility model provides a vacuum cup polishing clamp. The vacuum cup polishing clamp comprises a clamp base, an anti-skid elastic washer and an end face fixing block. The clamp base is used for being connected with a polishing machine spindle. The anti-skid elastic gasket is clamped between the clamp base and the end face fixing block, and the outer contour diameter of the anti-skid elastic gasket is larger than the outer contour diameter of the clamping face of the end face fixing block and smaller than or equal to the outer contour diameter of the clamping face of the clamp base. The part, not covered by the end face fixing block, of the anti-skid elastic gasket is used for abutting against the first end of the vacuum cup. The anti-skid elastic gasket has elastic deformation capacity and can generate static friction force with the vacuum cup. Accordingly, static friction force can be generated between the clamp and the vacuum cup, slipping during clamping and cutting is prevented, the vacuum cup polishing device can adapt to the vacuum cup with the length within a certain error range, the vacuum cup can be polished more stably, and reliable sand rib action is achieved.

Description

Technical Field

[0001] The utility model relates to the field of grinding and polishing mechanical equipment, and particularly relates to a polishing fixture for a heat-insulating cup. Background Art

[0002] The numerically controlled heat-insulating cup polishing machine is a numerically controlled device specially developed for polishing heat-insulating cups in recent years to replace manual polishing. Refer to Figure 1 As shown, the numerically controlled heat-insulating cup polishing machine uses a fixture to clamp the heat-insulating cup 01 and connect it to the main shaft. When the main shaft rotates, it drives the heat-insulating cup to rotate, and approaches the polishing wheel to generate polishing cutting, so as to perform mechanical polishing on the heat-insulating cup. The fixture of the heat-insulating cup polishing machine is divided into a mouth fixture 02 and a bottom fixture 03. The bottom fixture 03 is generally made of nylon material and processed according to the shape of the bottom of the cup. Generally, it is a surface contact, and there is no big problem. The mouth fixture 02 needs to be specially designed and customized according to the shape of the mouth of the heat-insulating cup, and the contact surface with the cup mouth is very narrow, almost a line contact.

[0003] When the polishing machine main shaft drives the cup to rotate and polish, it mainly relies on the frictional force generated by the clamping of the two fixtures to drive the cup to perform rotary cutting. When the polishing cutting force is greater than the frictional force generated by the fixture clamping, relative movement will occur between the cup and the fixture. The contact surface of the cup mouth fixture is small. If a general material is used to make the fixture, the friction coefficient is small, and the generated relative frictional force is also small. Therefore, under a large polishing cutting force, the cup mouth fixture and the cup are the places where relative movement is most likely to occur. If relative movement occurs between the cup mouth fixture and the cup, scratches will be generated on the cup mouth, and the inspection requirements for the cup mouth of the high-quality heat-insulating cup cannot be met. If the cutting force is small, to achieve the same processing effect, the cutting speed needs to be reduced, which affects the production efficiency of the machine. Especially when performing the sand rib action, if the position of the rib on the cup body slips and deviates due to slipping, the rib cannot be sanded at all.

[0004] In addition, during the production process of heat-insulating cups, the length error of the cups is relatively large, and there are many products with a deviation of more than 1 mm. If the clamping distance between the two fixtures is adjusted properly, there are certain requirements for the cup length when using. If it is too long, the bottom of the cup will be clamped and deformed, causing the cup on the main shaft to be eccentric and generating eccentric vibration during polishing. If the cup is too short, the clamping force is insufficient, and when the main shaft rotates, the cup will slip and produce relative movement, affecting the polishing quality. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: how to provide a polishing fixture for a heat-insulating cup to avoid relative movement between the heat-insulating cup and the fixture during the polishing process, and to be able to adapt to the clamping of the heat-insulating cup under the condition of a large length tolerance of the heat-insulating cup, improve the polishing quality, and achieve a reliable sand rib action.

[0006] To solve the above technical problems, the present utility model provides a polishing fixture for a thermos cup, aiming to avoid relative movement between the thermos cup and the fixture during the polishing process, and to be able to clamp the thermos cup when there is a large length tolerance, improve the polishing quality, and achieve a reliable sand rib action.

[0007] To achieve the above object, the present utility model provides a polishing fixture for a thermos cup, comprising: a fixture base, an anti-slip elastic washer, and an end face fixing block;

[0008] The fixture base is used to connect to the main shaft of the polishing machine;

[0009] The anti-slip elastic washer is clamped between the fixture base and the end face fixing block. The outer diameter of the anti-slip elastic washer is greater than the outer diameter of the clamping surface of the end face fixing block and less than or equal to the outer diameter of the clamping surface of the fixture base. The part of the anti-slip elastic washer not covered by the end face fixing block is used to abut against the first end of the thermos cup;

[0010] The anti-slip elastic washer has the ability of elastic deformation and can generate static friction with the thermos cup.

[0011] Preferably, the anti-slip elastic washer has the ability to withstand the heat generated during the polishing process of the thermos cup.

[0012] Preferably, the anti-slip elastic washer is made of rubber material.

[0013] Preferably, the end face fixing block includes a guiding portion for guiding the entry into the opening at the first end of the thermos cup.

[0014] Preferably, the guiding portion is a chamfer provided at one end of the end face fixing block.

[0015] Preferably, the end face fixing block is made of a heat-resistant non-metallic material.

[0016] Preferably, the polishing fixture for the thermos cup further includes: a bolt;

[0017] A threaded hole is provided on the fixture base, a light hole is provided at the corresponding position on the anti-slip elastic washer and the end face fixing block, and a counterbore is provided at the light hole of the end face fixing block;

[0018] The bolt passes through the light holes in the end face fixing block and the anti-slip elastic washer and is connected to the threaded hole on the fixture base. The head of the bolt is located in the counterbore.

[0019] Preferably, the first end of the thermos cup is an annular mouth portion. The outer diameter of the anti-slip elastic washer is greater than or equal to the outer diameter of the first end of the thermos cup, and the inner diameter of the first end of the thermos cup is greater than or equal to the outer diameter of the end face fixing block.

[0020] Preferably, the outer contour of the anti-slip elastic washer is circular, the outer contour of the clamping surface of the end face fixing block is circular, and the outer contour of the clamping surface of the fixture base is circular, and the three circles are concentrically arranged.

[0021] Preferably, a second-end fixture is provided at the second end of the thermos cup. The second-end fixture abuts against the second end of the thermos cup and presses the thermos cup against the anti-slip elastic washer.

[0022] The utility model provides a polishing fixture for a thermos cup, comprising: a fixture base, an anti-slip elastic washer and an end face fixing block; the fixture base is used for connecting the main shaft of a polishing machine; the anti-slip elastic washer is clamped between the fixture base and the end face fixing block, the outer contour diameter of the anti-slip elastic washer is larger than the outer contour diameter of the clamping surface of the end face fixing block and smaller than or equal to the outer contour diameter of the clamping surface of the fixture base, and the part of the anti-slip elastic washer not covered by the end face fixing block is used for abutting against the first end of the thermos cup; the anti-slip elastic washer has the ability of elastic deformation and can generate static friction with the thermos cup. Accordingly, the technical effect achieved by the utility model is that static friction can be generated between the fixture and the thermos cup to prevent slipping during clamping and cutting, and the thermos cup with a length within a certain error range can be adapted, so that the polishing process of the thermos cup is more stable and a reliable sand rib action can be realized. Description of the Drawings

[0023] Figure 1 It is the clamping method adopted for the polishing work of the thermos cup in the prior art.

[0024] Figure 2 It is the structural sectional view of an embodiment of the polishing fixture for the thermos cup of the utility model.

[0025] Figure 3 It is the structural end view of an embodiment of the polishing fixture for the thermos cup of the utility model.

[0026] Description of the Reference Numerals:

[0027] 01 Thermos cup

[0028] 02 Mouth fixture

[0029] 03 Bottom fixture

[0030] 10 Fixture base

[0031] 11 Threaded hole

[0032] 20 Anti-slip elastic washer

[0033] 21 Light hole

[0034] 30 End face fixing block

[0035] 31 Introduction part

[0036] 32 light holes

[0037] 33 counterbored holes

[0038] 40 bolts

[0039] The head of bolt 41. Specific embodiments

[0040] The specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0041] The present utility model mainly makes improvements to the mouth fixture in the polishing process of thermos cups. Refer to Figure 2 As shown, the thermos cup polishing fixture provided by the present utility model includes: a fixture base 10, an anti-slip elastic washer 20, and an end face fixing block 30. The fixture base 10 is used to connect to the main shaft of the polishing machine. The material of the fixture base 10 can be made of ordinary steel or other metal or non-metal materials, which need to meet certain rigidity requirements, be not easily deformed, be able to transmit torsional torque, and be convenient for installation and connection. The anti-slip elastic washer 20 is clamped between the fixture base 10 and the end face fixing block 30. Combining Figure 3 As shown, the outer diameter of the anti-slip elastic washer 20 is larger than the outer diameter of the clamping surface of the end face fixing block 30 and less than or equal to the outer diameter of the clamping surface of the fixture base 10. The part of the anti-slip elastic washer 20 not covered by the end face fixing block 30 is used to abut against the first end of the thermos cup. The clamping surface of the end face fixing block 30 refers to the surface where the end face fixing block 30 is in contact with the anti-slip elastic washer 20, and the clamping surface of the fixture base 10 refers to the surface where the fixture base 10 is in contact with the anti-slip elastic washer 20. That is, the part of the anti-slip elastic washer 20 supported by the fixture base 10 and exposed is used to contact the thermos cup. The anti-slip elastic washer 20 has the ability of elastic deformation and can generate static friction with the thermos cup. Since the anti-slip elastic washer 20 has the ability of elastic deformation, the anti-slip elastic washer 20 can adapt to thermos cups within a certain length dimension tolerance range and can have a certain clamping force. Since the anti-slip elastic washer 20 can generate static friction with the thermos cup, it can resist the cutting force acting on the thermos cup during the polishing process and prevent slipping.

[0042] The anti-slip elastic washer 20 has the ability to withstand the heat generated during the polishing process of the thermos cup. Accordingly, during the polishing process, the cutting heat generated will be conducted to the anti-slip elastic washer 20 through the thermos cup, and the anti-slip elastic washer 20 can withstand high temperatures and avoid changes in the structural form of the anti-slip elastic washer 20 caused by high temperatures.

[0043] Based on the above characteristic requirements, preferably, the anti-slip elastic washer 20 is made of rubber material. The friction coefficient between the rubber material and the stainless steel thermos cup is much greater than that between steel and stainless steel. The rubber material can deform under force and can recover after the external force is released, having a certain elasticity. The rubber material can withstand high temperatures.

[0044] Refer to Figure 2 As shown, the end face fixing block 30 includes a guiding portion 31 for guiding and entering the opening at the first end of the thermos cup.

[0045] Refer to Figure 2 As shown, the guiding portion 31 is a chamfer provided at one end of the end face fixing block 30. This end is opposite to the clamping surface of the end face fixing block 30.

[0046] The end face fixing block 30 is made of a temperature-resistant non-metallic material. Accordingly, since the end face fixing block 30 needs to enter the mouth of the thermos cup, it can avoid scratching the mouth of the thermos cup. The end face fixing block 30 also needs to have a certain rigidity to be able to clamp the anti-slip elastic washer 20. The characteristic of being able to withstand high temperatures also avoids the influence of cutting heat on the end face fixing block 30.

[0047] Refer to Figure 2 As shown, the thermos cup polishing fixture further includes: a bolt 40. A threaded hole 11 is provided on the fixture base 10, a clearance hole 21 is provided at the corresponding position on the anti-slip elastic washer 20, a clearance hole 32 is provided at the corresponding position on the end face fixing block 30, and a counterbore 33 is provided at the clearance hole 32 of the end face fixing block. The bolt 40 passes through the clearance hole 32 of the end face fixing block and the clearance hole 21 of the anti-slip elastic washer and is connected to the threaded hole 11 on the fixture base. The head 41 of the bolt is located in the counterbore 33. Accordingly, the anti-slip elastic washer 20 can be fixedly arranged between the fixture base 10 and the end face fixing block 30.

[0048] Refer to Figure 2 and Figure 3 As shown, in combination with Figure 1 the example, the first end of the thermos cup is a circular ring-shaped mouth. The outer diameter of the anti-slip elastic washer 20 is greater than or equal to the outer diameter of the first end of the thermos cup. Accordingly, it can ensure that the contact area between the thermos cup and the anti-slip elastic washer 20 is as large as possible. The inner diameter of the first end of the thermos cup is greater than or equal to the outer diameter of the end face fixing block 30. Accordingly, it can ensure that the end face fixing block 30 can smoothly enter the mouth of the first end of the thermos cup.

[0049] Refer to Figure 3 As shown, the outer contour of the anti-slip elastic washer 20 is circular, the outer contour of the clamping surface of the end face fixing block 30 is circular, and the outer contour of the clamping surface of the fixture base 10 is circular. The above-mentioned three circles are concentrically arranged. Accordingly, it can ensure accurate positioning.

[0050] Combination Figure 1 As shown, a second-end fixture is provided at the second end of the heat-insulated cup. The second-end fixture abuts against the second end of the heat-insulated cup, pressing the heat-insulated cup towards the anti-slip elastic washer 20. Accordingly, through the clamping force between the heat-insulated cup polishing fixture and the second-end fixture provided by the present utility model, the frictional force between the anti-slip elastic washer 20 and the heat-insulated cup is generated, which can resist the cutting force during the polishing operation.

[0051] The above is the main technical solution of the embodiment of the heat-insulated cup polishing fixture provided by the present utility model, showing the connection relationship between components. The technical effects that the present utility model can achieve are as follows: First, through the combination of material selection, the technical problem of slipping during the operation of the cup mouth of the polishing machine is solved, ensuring the realization of a reliable sand rib action. Second, through the combination of material selection, the tolerance rate for the length requirement of the heat-insulated cup is increased, enabling the cup to be normally polished within a certain length range. Third, the structural design is simple, the manufacturing cost is low, and the operability is strong.

[0052] The above specific embodiments and the accompanying drawings are only illustrative of the technical solutions and technical effects of the present utility model, rather than limiting the present utility model. Any person skilled in the art can modify or change the above embodiments within the scope of protection of the claims without departing from the technical principles and spirit of the present utility model, and all belong to the scope of protection of the rights of the present utility model.

Claims

1. A polishing fixture for a heat-insulated cup, characterized in that, Including: A fixture base, an anti-slip elastic washer, and an end face fixing block; The fixture base is used to connect to the main shaft of the polishing machine; The anti-slip elastic washer is clamped between the fixture base and the end face fixing block. The outer diameter of the anti-slip elastic washer is larger than the outer diameter of the clamping surface of the end face fixing block and less than or equal to the outer diameter of the clamping surface of the fixture base. The part of the anti-slip elastic washer not covered by the end face fixing block is used to abut against the first end of the thermos cup; The anti-slip elastic washer has the ability of elastic deformation and can generate static friction with the thermos cup.

2. The heat-insulated cup polishing fixture according to claim 1, wherein The anti-slip elastic washer has the ability to withstand the heat generated during the polishing process of the thermos cup.

3. The heat-insulated cup polishing fixture according to claim 1 or 2, characterized in that, The anti-slip elastic washer is made of rubber material.

4. The heat-insulating cup polishing fixture according to claim 1, characterized in that The end face fixing block includes a guiding portion for guiding the entrance to the opening at the first end of the thermos cup.

5. The heat-insulated cup polishing fixture according to claim 4, wherein The guiding portion is a chamfer provided at one end of the end face fixing block.

6. The heat-insulated cup polishing fixture according to claim 1 or 4 or 5, characterized in that The end face fixing block is made of a heat-resistant non-metallic material.

7. The heat-insulated cup polishing fixture according to claim 1, wherein, Also including: Bolts; Threaded holes are provided on the fixture base, through holes are provided at corresponding positions on the anti-slip elastic washer and the end face fixing block, and counterbores are provided at the through holes of the end face fixing block; The bolts pass through the through holes in the end face fixing block and the anti-slip elastic washer and are connected to the threaded holes on the fixture base. The heads of the bolts are located in the counterbores.

8. The heat-insulated cup polishing fixture according to claim 1, wherein The first end of the thermos cup is an annular mouth portion. The outer diameter of the anti-slip elastic washer is larger than or equal to the outer diameter of the first end of the thermos cup. The inner diameter of the first end of the thermos cup is larger than or equal to the outer diameter of the end face fixing block.

9. The heat-insulating cup polishing fixture according to claim 1, characterized in that The outer profile of the anti-slip elastic washer is circular, the outer profile of the clamping surface of the end face fixing block is circular, and the outer profile of the clamping surface of the fixture base is circular. The three circles are concentrically arranged.

10. The heat-insulated cup polishing fixture according to claim 1, characterized in that, A second end fixture is provided at the second end of the thermos cup. The second end fixture abuts against the second end of the thermos cup and presses the thermos cup against the anti-slip elastic washer.

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