Polishing clamp and polishing equipment

Abstract

The utility model discloses a polishing fixture and discloses polishing equipment with the polishing fixture, the polishing fixture is used for polishing chair legs, each chair leg comprises a connecting cylinder and a plurality of supporting legs connected to the peripheral side of the connecting cylinder, the polishing fixture comprises a support, an expansion assembly and a driving part, the expansion assembly comprises an expansion sleeve and an expansion shaft, and the expansion sleeve is connected with the supporting legs. The expansion sleeve is arranged on the support, the expansion shaft movably penetrates through the expansion sleeve, when the expansion shaft moves, the expansion sleeve expands or shrinks, the expansion sleeve is used for abutting against the inner circumferential wall of the connecting cylinder, the driving part is arranged on the support, the output end of the driving part is connected with the expansion shaft, the driving part drives the expansion sleeve to expand or shrink by driving the expansion shaft to move, and when the expansion sleeve expands, the driving part drives the expansion sleeve to shrink or expand. And the expansion sleeve can abut against the inner peripheral wall of the connecting cylinder to fix the connecting cylinder, the chair legs can be stably fixed, and therefore the polishing quality of the chair legs is improved.

Description

Technical Field

[0001] This utility model relates to the field of polishing fixture technology, and in particular to a polishing fixture and polishing equipment. Background Technology

[0002] Polishing equipment typically includes polishing fixtures and polishing components. The polishing components are used to polish chair legs, which requires polishing the outer surface of the chair legs to meet process requirements. However, existing fixtures cannot stably hold the chair legs in place, resulting in poor polishing quality. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a polishing fixture that can improve the polishing quality of chair legs.

[0004] This utility model also proposes a polishing device having the above-mentioned polishing fixture.

[0005] A polishing fixture according to a first aspect of the present invention is used for polishing chair legs, the chair legs including a connecting cylinder and a plurality of support legs connected to the outer periphery of the connecting cylinder, comprising:

[0006] support;

[0007] An expansion assembly includes an expansion sleeve and an expansion shaft. The expansion sleeve is disposed on the bracket, and the expansion shaft is movably inserted through the expansion sleeve. When the expansion shaft moves, the expansion sleeve expands or contracts. The expansion sleeve is used to abut against the inner peripheral wall of the connecting cylinder.

[0008] A driving component is provided on the bracket. The output end of the driving component is connected to the expansion shaft. The driving component drives the expansion shaft to move, thereby causing the expansion sleeve to expand or contract.

[0009] The polishing fixture according to the first aspect of the present invention has at least the following beneficial effects:

[0010] When fixing the chair legs, one end of the expansion sleeve and one end of the expansion shaft are inserted into the connecting cylinder. The driving component drives the expansion shaft to move so that the expansion shaft abuts against the inner circumferential wall of the expansion sleeve. The expansion shaft drives the expansion sleeve to expand, and the outer circumferential surface of the expansion sleeve abuts against the inner circumferential wall of the connecting cylinder, which can stably fix the chair legs, thereby improving the polishing quality of the chair legs.

[0011] According to some embodiments of the present invention, the bracket is sleeved on the outer periphery of the expansion sleeve, and the bracket and the expansion sleeve are detachably connected.

[0012] According to some embodiments of the present invention, the bracket is connected to the expansion sleeve by a first fastener.

[0013] According to some embodiments of the present invention, the expansion sleeve includes a connecting part and a plurality of expansion parts. One side of the connecting part is connected to the bracket, and the other side of the connecting part is connected to the expansion parts. The plurality of expansion parts are arranged around the axis of the expansion shaft, and the outer peripheral surface of the expansion shaft abuts against the expansion parts, so that the plurality of expansion parts can expand or contract.

[0014] According to some embodiments of this utility model, the connecting part and the tightening part are an integral structure.

[0015] According to some embodiments of the present invention, the outer peripheral surface of the tightening part is provided with a positioning step, which is used to abut against one end of the connecting cylinder.

[0016] According to some embodiments of the present invention, a deformation groove is formed between adjacent expansion portions. The deformation groove includes a first groove segment and a second groove segment that are sequentially connected along the axial direction of the expansion shaft. The first groove segment is close to the connecting portion, and the sidewall of the first groove segment has an arc-shaped structure.

[0017] According to some embodiments of the present invention, the end of the tensioning shaft away from the driving member is provided with an abutment portion, and the outer diameter of the abutment portion gradually decreases along the direction close to the driving member. The tensioning portion is provided with an abutment surface that matches the abutment portion.

[0018] According to some embodiments of the present invention, the polishing fixture further includes a plurality of positioning blocks connected to the bracket, the plurality of positioning blocks being arranged around the axis of the tensioning shaft, the positioning blocks being provided with positioning grooves, the positioning grooves being used for inserting a portion of the support foot into the positioning grooves.

[0019] The polishing apparatus according to a second aspect of the present invention includes the polishing fixture described in the above embodiments.

[0020] The polishing apparatus according to the second aspect embodiment of the present invention has at least the following beneficial effects:

[0021] When using the polishing fixture of the first aspect embodiment of this utility model to fix the chair leg, one end of the expansion sleeve and one end of the expansion shaft are both inserted into the connecting cylinder. The driving component drives the expansion shaft to move so that the expansion shaft abuts against the inner peripheral wall of the expansion sleeve. The expansion shaft drives the expansion sleeve to expand, and the outer peripheral surface of the expansion sleeve abuts against the inner peripheral wall of the connecting cylinder, which can stably fix the chair leg and thus improve the polishing quality of the chair leg.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a schematic diagram of the polishing fixture according to an embodiment of the present invention;

[0025] Figure 2 This is an exploded view of the polishing fixture according to an embodiment of the present utility model;

[0026] Figure 3 for Figure 1 Top view;

[0027] Figure 4 for Figure 3 Sectional view of line AA in the middle;

[0028] Figure 5 for Figure 4 A magnified view of part B in the middle section;

[0029] Figure 6 This is a schematic diagram of the structure of the expansion sleeve according to an embodiment of the present utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the tensioning shaft according to an embodiment of the present invention.

[0031] Figure label:

[0032] Bracket 100, tensioning assembly 200, deformation groove 201, first groove segment 202, second groove segment 203, tensioning sleeve 210, connecting part 211, tensioning part 212, abutting surface 213, positioning step 214, tensioning shaft 220, abutting part 221, driving component 300, positioning block 400, positioning groove 410, chair leg 500, connecting cylinder 510, support leg 520. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] In related technologies, polishing equipment generally includes polishing fixtures and polishing components. The polishing components are used to polish chair legs. When polishing chair legs, the outer surface of the chair legs needs to be polished to meet process requirements. However, existing fixtures cannot stably fix the chair legs, resulting in poor polishing quality.

[0038] Reference Figures 1 to 7 According to a first aspect embodiment of the present invention, a polishing fixture is used for polishing a chair leg 500. The chair leg 500 includes a connecting cylinder 510 and a plurality of support legs 520 connected to the outer periphery of the connecting cylinder 510. The fixture includes a bracket 100, a tensioning assembly 200, and a driving member 300. The tensioning assembly 200 includes a tensioning sleeve 210 and a tensioning shaft 220. The tensioning sleeve 210 is disposed on the bracket 100, and the tensioning shaft 220 is movably inserted through the tensioning sleeve 210. When the tensioning shaft 220 moves, the tensioning sleeve 210... 10. The expansion sleeve 210 is used to abut against the inner peripheral wall of the connecting cylinder 510. The driving component 300 is provided on the bracket 100. The output end of the driving component 300 is connected to the expansion shaft 220. The driving component 300 drives the expansion sleeve 210 to expand or contract by driving the expansion shaft 220 to move. When the expansion sleeve 210 expands, it can abut against the inner peripheral wall of the connecting cylinder 510 to fix the connecting cylinder 510 and stably fix the chair leg 500, thereby improving the polishing quality of the chair leg 500.

[0039] Specifically, when fixing the chair leg 500, one end of the tension sleeve 210 and one end of the tension shaft 220 are both inserted into the connecting cylinder 510. The driving component 300 drives the tension shaft 220 to move so that the tension shaft 220 abuts against the inner peripheral wall of the tension sleeve 210. The tension shaft 220 drives the tension sleeve 210 to expand, and the outer peripheral surface of the tension sleeve 210 abuts against the inner peripheral wall of the connecting cylinder 510, which can stably fix the chair leg 500, thereby improving the polishing quality of the chair leg 500.

[0040] It should be noted that after polishing, the drive unit 300 drives the tension shaft 220 to move in the opposite direction so that the tension shaft 220 does not abut against the inner peripheral wall of the tension sleeve 210, so that the tension sleeve 210 can contract to loosen the chair leg 500, making it easier to remove the polished chair leg 500. This will not be elaborated further here.

[0041] Reference Figure 4 In some embodiments of this utility model, the bracket 100 is sleeved on the outer periphery of the expansion sleeve 210, which can hide the expansion sleeve 210. On the one hand, it can prevent the expansion sleeve 210 from injuring the operator when it expands or contracts. On the other hand, it can prevent dust generated during polishing from entering between the expansion sleeve 210 and the expansion shaft 220, thereby improving the service life of the expansion assembly 200.

[0042] It should be noted that the support 100 has a sleeve-shaped structure, which will not be described in detail here.

[0043] In some embodiments of this utility model, the bracket 100 is connected to the expansion sleeve 210 by a first fastener, which is a bolt or screw or other component. The first fastener passes through the bracket 100 and is threadedly connected to the expansion sleeve 210, so that the bracket 100 and the expansion sleeve 210 are stably connected, which facilitates the installation or removal of the expansion sleeve 210, so as to facilitate the inspection and maintenance of the expansion sleeve 210.

[0044] As another implementation, the bracket 100 can also be connected to the expansion sleeve 210 by welding. The welding method includes, but is not limited to, resistance welding, laser welding or ultrasonic welding, which will not be described in detail here.

[0045] Reference Figure 4 , Figure 6 In some embodiments of this utility model, the expansion sleeve 210 includes a connecting part 211 and a plurality of expansion parts 212. One side of the connecting part 211 is connected to the bracket 100, and the other side of the connecting part 211 is connected to the expansion parts 212. The plurality of expansion parts 212 are arranged around the axis of the expansion shaft 220, and the outer peripheral surface of the expansion shaft 220 abuts against the expansion parts 212, so that the plurality of expansion parts 212 can expand or contract, which can facilitate fixing or loosening the chair leg 500.

[0046] For example, three tensioning parts 212 are arranged around the axis of the tensioning shaft 220. The three tensioning parts 212 form a receiving groove. One end of the tensioning shaft 220 passes through the receiving groove. In a direction perpendicular to the axial direction of the tensioning shaft 220, the cross-section of the tensioning shaft 220 matches the cross-section of the receiving groove. The outer peripheral surface of the tensioning shaft 220 abuts against the inner side of the tensioning parts 212, so that the multiple tensioning parts 212 can expand or contract, which can facilitate fixing or loosening the chair leg 500.

[0047] Of course, in other specific embodiments, the tensioning part 212 may be configured in two or four, etc., and there is no limitation here.

[0048] In some embodiments of this utility model, the connecting part 211 and the tightening part 212 are integral structures. The connecting part 211 and the tightening part 212 can be integrally formed by die casting, which can reduce the number of molds, thereby reducing the production and manufacturing cost of the molds and thus reducing the production and manufacturing cost of the tightening sleeve 210.

[0049] Reference Figure 7 In some embodiments of this utility model, the outer peripheral surface of the tensioning part 212 is provided with a positioning step 214. The positioning step 214 is used to abut against one end of the connecting cylinder 510, which can facilitate positioning of the relative position of the tensioning part 212 and the connecting cylinder 510, so as to facilitate the installation of the chair leg 500 and thereby improve the polishing quality of the chair leg 500.

[0050] For example, the positioning step 214 is a strip structure. The positioning step 214 protrudes from the outer peripheral surface of the tensioning part 212 and extends circumferentially along the tensioning shaft 220. When installing the chair leg 500, one end of the connecting cylinder 510 abuts against the positioning step 214, which facilitates positioning the relative position of the tensioning part 212 and the connecting cylinder 510, so as to facilitate the installation of the chair leg 500 and improve the polishing quality of the chair leg 500.

[0051] Reference Figure 6 In some embodiments of this utility model, a deformation groove 201 is formed between adjacent expansion portions 212. The deformation groove 201 includes a first groove segment 202 and a second groove segment 203 that are sequentially connected along the axial direction of the expansion shaft 220. The first groove segment 202 is close to the connecting portion 211, and the sidewall of the first groove segment 202 has an arc-shaped structure.

[0052] In some embodiments of this utility model, the polishing fixture further includes a plurality of positioning blocks 400 connected to the bracket 100. The plurality of positioning blocks 400 are arranged around the axis of the tensioning shaft 220. The positioning blocks 400 are provided with positioning grooves 410. The positioning grooves 410 are used for inserting a portion of the support foot 520 into the positioning grooves 410, which can facilitate fixing the support foot 520 to prevent the support foot 520 from moving relative to the bracket 100 and improve the polishing quality of the support foot 520.

[0053] For example, there are five positioning blocks 400, the number of which is equal to the number of support feet 520, and the positioning blocks 400 and support feet 520 correspond one-to-one. When the tightening sleeve 210 clamps the connecting cylinder 510, part of the support foot 520 is inserted into the positioning groove 410, and the support foot 520 abuts against the side wall of the positioning groove 410, which can facilitate the fixing of the support foot 520 to prevent the support foot 520 from moving relative to the bracket 100 and improve the polishing quality of the support foot 520.

[0054] It should be noted that the positioning block 400 is connected to the bracket 100 by a second fastener, which is a bolt or screw or similar component. The second fastener passes through the positioning block 400 and is threadedly connected to the bracket 100, so that the positioning block 400 and the bracket 100 are stably connected, which facilitates the installation or removal of the positioning block 400. No restrictions are imposed here.

[0055] Reference Figures 5 to 7 In some embodiments of this utility model, the end of the tensioning shaft 220 away from the driving member 300 is provided with an abutment portion 221. Along the direction close to the driving member 300, the outer diameter of the abutment portion 221 gradually decreases. The tensioning portion 212 is provided with an abutment surface 213 that matches the abutment portion 221. When the tensioning portion 212 expands, the abutment portion 221 abuts against the abutment surface 213. When the tensioning portion 212 contracts, the abutment portion 221 separates from the abutment surface 213, which facilitates driving the tensioning portion 212 to expand or contract.

[0056] As another implementation, the outer diameter of the contact portion 221 can gradually increase along the direction close to the drive member 300, and this is not limited here.

[0057] Reference Figure 1 , Figure 2 The polishing device according to the second aspect of the present invention includes the polishing fixture of the first aspect of the present invention. When the expansion sleeve 210 expands, the expansion sleeve 210 can abut against the inner peripheral wall of the connecting cylinder 510 to fix the connecting cylinder 510 and can stably fix the chair leg 500, thereby improving the polishing quality of the chair leg 500.

[0058] Specifically, when using the polishing fixture of the first aspect embodiment of this utility model to fix the chair leg 500, one end of the expansion sleeve 210 and one end of the expansion shaft 220 are both inserted into the connecting cylinder 510. The driving member 300 drives the expansion shaft 220 to move so that the expansion shaft 220 abuts against the inner peripheral wall of the expansion sleeve 210. The expansion shaft 220 drives the expansion sleeve 210 to expand, and the outer peripheral surface of the expansion sleeve 210 abuts against the inner peripheral wall of the connecting cylinder 510, which can stably fix the chair leg 500, thereby improving the polishing quality of the chair leg 500.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The present invention has been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A polishing fixture for polishing chair legs (500), the chair legs (500) comprising a connecting cylinder (510) and a plurality of support legs (520) connected to the outer periphery of the connecting cylinder (510), characterized in that, include: Bracket (100); The expansion assembly (200) includes an expansion sleeve (210) and an expansion shaft (220). The expansion sleeve (210) is disposed on the bracket (100), and the expansion shaft (220) is movably inserted through the expansion sleeve (210). When the expansion shaft (220) moves, the expansion sleeve (210) expands or contracts. The expansion sleeve (210) is used to abut against the inner peripheral wall of the connecting cylinder (510). A drive member (300) is provided on the bracket (100). The output end of the drive member (300) is connected to the expansion shaft (220). The drive member (300) drives the expansion shaft (220) to move, thereby causing the expansion sleeve (210) to expand or contract.

2. The polishing fixture according to claim 1, characterized in that, The bracket (100) is sleeved on the outer periphery of the expansion sleeve (210), and the bracket (100) and the expansion sleeve (210) are detachably connected.

3. The polishing fixture according to claim 2, characterized in that, The bracket (100) is connected to the expansion sleeve (210) by a first fastener.

4. The polishing fixture according to claim 1, characterized in that, The expansion sleeve (210) includes a connecting part (211) and a plurality of expansion parts (212). One side of the connecting part (211) is connected to the bracket (100), and the other side of the connecting part (211) is connected to the expansion part (212). The plurality of expansion parts (212) are arranged around the axis of the expansion shaft (220), and the outer peripheral surface of the expansion shaft (220) abuts against the expansion parts (212) so that the plurality of expansion parts (212) can expand or contract.

5. The polishing fixture according to claim 4, characterized in that, The connecting part (211) and the tightening part (212) are an integral structure.

6. The polishing fixture according to claim 4, characterized in that, The outer peripheral surface of the expansion part (212) is provided with a positioning step (214), which is used to abut against one end of the connecting cylinder (510).

7. The polishing fixture according to claim 4, characterized in that, A deformation groove (201) is formed between adjacent expansion portions (212). The deformation groove (201) includes a first groove segment (202) and a second groove segment (203) that are sequentially connected along the axial direction of the expansion shaft (220). The first groove segment (202) is close to the connecting portion (211), and the sidewall of the first groove segment (202) has an arc-shaped structure.

8. The polishing fixture according to claim 4, characterized in that, The end of the tensioning shaft (220) away from the driving member (300) is provided with an abutment portion (221). Along the direction close to the driving member (300), the outer diameter of the abutment portion (221) gradually decreases. The tensioning portion (212) is provided with an abutment surface (213) that matches the abutment portion (221).

9. The polishing fixture according to claim 1, characterized in that, The polishing fixture also includes a plurality of positioning blocks (400) connected to the bracket (100). The plurality of positioning blocks (400) are arranged around the axis of the tensioning shaft (220). The positioning blocks (400) are provided with positioning grooves (410). The positioning grooves (410) are used for inserting a portion of the support foot (520) into the positioning grooves (410).

10. A polishing device, characterized in that, Including the polishing fixture as described in any one of claims 1 to 9.

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