Clamp

Abstract

The utility model relates to a clamp which is mounted on a CNC (computerized numerical control) engraving and milling machining platform, is matched with an engraving and milling cutter and comprises a base assembly and a clamp assembly. The clamp assembly is arranged on the base assembly and comprises a clamp structure and a pressing structure, the clamp structure is matched with the pressing structure, the pressing structure comprises a first rotating shaft, a second rotating shaft, a first pressing rod, a second pressing rod and a connecting rod, the first pressing rod is rotatably arranged on the circumferential outer side of the first rotating shaft, and the second pressing rod is rotatably arranged on the circumferential outer side of the second rotating shaft. The second pressing rod is rotatably arranged on the circumferential outer side of the second rotating shaft, and the two ends of the connecting rod are connected with the first pressing rod and the second pressing rod correspondingly. According to the technical scheme, the problem that in the prior art, when the glass cover plate is subjected to fine carving machining, the machining efficiency is low is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of CNC machining, and in particular, to a clamp. Background Art

[0002] In the CNC precision engraving processing and manufacturing of glass cover plates, the glass cover plates need to be fixed before precision engraving. The existing fixing method is to use vacuum adsorption to fix the glass cover plates. However, this fixing method can only adsorb one glass cover plate at a time, which makes the processing efficiency low.

[0003] In order to solve the problem of low processing efficiency, there is a fixture in the prior art (for example, the authorization announcement number is: CN215847036U, the name is: CNC fixture), which includes a base plate, a fixed seat, a positioning plate, a cover plate and a fastening assembly. The fixed seat, the positioning plate, the cover plate and the fastening assembly are all arranged on one side of the base plate, and the other side of the base plate is connected to the CNC processing platform. The workpiece to be processed is placed between the positioning plate and the cover plate, and the fastening assembly and the cover plate are pressed against each other to clamp the workpiece to be processed. The fixture can clamp multiple workpieces to be processed at the same time, thereby improving the processing efficiency. However, when the precision engraving tool is performing precision engraving on the workpiece to be processed, it is affected by the fastening assembly and cannot be continuously performed along the circumference of the workpiece to be processed, which makes the processing efficiency still need to be improved. Utility Model Content

[0004] The present application provides a clamp to solve the problem of low processing efficiency when fine carving is performed on a glass cover in the prior art.

[0005] According to a fixture provided by the present application, the fixture is installed on a CNC precision engraving processing platform and cooperates with a precision engraving tool, including: a base assembly and a fixture assembly. The fixture assembly is arranged on the base assembly, and the fixture assembly includes a fixture structure and a clamping structure, and the fixture structure and the clamping structure cooperate with each other, and the clamping structure includes a first rotating shaft, a second rotating shaft, a first pressure rod, a second pressure rod and a connecting rod, the first pressure rod is rotatably arranged on the circumferential outer side of the first rotating shaft, the second pressure rod is rotatably arranged on the circumferential outer side of the second rotating shaft, and the two ends of the connecting rod are respectively connected to the first pressure rod and the second pressure rod.

[0006] In some embodiments, the first pressure rod has a first through hole, the first rotating shaft has a top section and a matching section, the top section and the matching section are connected, the diameter of the top section is larger than the diameter of the first through hole, the top section and the first pressure rod are abutted against each other, and the matching section is passed through the first through hole.

[0007] In some embodiments, the clamping structure also includes a first pressure block, a second pressure block and a third pressure block. The second pressure block is sleeved on the circumferential outer side of the first pressure block. The first pressure block has a threaded hole, and the mating section has an external thread engaged with the threaded hole. The third pressure block is arranged on the circumferential outer side of the second rotating shaft, and the third pressure block is fixedly connected to the second rotating shaft.

[0008] In some embodiments, the clamping structure also includes a bearing, which is sleeved on the circumferential outer side of the second rotating shaft, and the bearing and the second rotating shaft have an interference fit. The second pressure rod has a matching hole, which is sleeved on the circumferential outer side of the bearing, and the matching hole and the bearing have an interference fit.

[0009] In some embodiments, the clamp structure includes a first pressing plate and a second pressing plate, the first pressing plate and the second pressing plate correspond to each other, and a pressing space is defined between the first pressing plate and the second pressing plate.

[0010] In some embodiments, the first pressing plate has a first matching groove, the second pressing plate has a second matching groove, the second pressing block is installed in the first matching groove, and the third pressing block is installed in the second matching groove.

[0011] In some embodiments, the connecting rod has a long mounting hole, the first pressure rod has a first threaded hole, and the first screw passes through the long mounting hole and is screwed into the first threaded hole.

[0012] In some embodiments, the second compression rod has a second through hole, the connecting rod has a second threaded hole, and the second screw passes through the second through hole and is screwed to the second threaded hole.

[0013] In some embodiments, the first pressure rod and the second pressure rod are both telescopic rods.

[0014] In some embodiments, the first pressure rod includes a first telescopic pressure rod, a second telescopic pressure rod and a first limiting portion, the second telescopic pressure rod is movably arranged in the first telescopic pressure rod, the first limiting portion is arranged on the outer surface of the first telescopic pressure rod, the second telescopic pressure rod has a plurality of first limiting holes, and the first limiting portion and the first limiting hole cooperate with each other.

[0015] The technical solution of the present application is applied, and the fixture is installed on the CNC precision engraving processing platform and cooperates with the precision engraving tool. The fixture clamps the glass cover plate, and the precision engraving tool realizes the precision engraving operation on the glass cover plate. The fixture includes a base assembly and a fixture assembly, and the fixture assembly is arranged on the base assembly. The fixture assembly includes a fixture structure and a clamping structure, and the fixture structure and the clamping structure cooperate with each other. The fixture structure is used to clamp a plurality of cover glass plates, and the clamping structure is used to apply a clamping force to the fixture structure. The clamping structure includes a first rotating shaft, a second rotating shaft, a first pressure rod, a second pressure rod and a connecting rod. The first pressure rod is rotatably arranged on the circumferential outer side of the first rotating shaft, and the second pressure rod is rotatably arranged on the circumferential outer side of the second rotating shaft. The two ends of the connecting rod are respectively connected to the first pressure rod and the second pressure rod. This arrangement makes it possible for the precision engraving tool to perform precision engraving operations along the circumference of the glass cover plate without being affected by the first pressure rod and the second pressure rod, and can perform precision engraving operations continuously and smoothly, thereby greatly improving the processing efficiency. The technical solution of the present application effectively solves the problem of low processing efficiency when fine carving is performed on a glass cover in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A schematic structural diagram of a clamp according to Embodiment 1 of the present application is shown;

[0019] Figure 2 A schematic structural diagram of a clamp structure and a clamping structure according to a first embodiment of the present application is shown;

[0020] Figure 3 A schematic structural diagram of the first pressure rod of the second embodiment of the present application is shown.

[0021] The above drawings include the following reference numerals:

[0022] 10. Base assembly; 20. Clamp assembly; 21. Clamp structure; 211. First pressure plate; 212. Second pressure plate; 22. Clamping structure; 221. First rotating shaft; 222. Second rotating shaft; 223. First pressure rod; 2231. First telescopic pressure rod; 2232. Second telescopic pressure rod; 2233. First limiting portion; 224. Second pressure rod; 225. Connecting rod; 226. First pressure block; 227. Second pressure block; 228. Third pressure block; 229. Bearing. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0026] like Figure 1 and Figure 2As shown, the first embodiment relates to a fixture, which is installed on a CNC precision engraving processing platform and cooperates with a precision engraving tool, including: a base assembly 10 and a fixture assembly 20. The fixture assembly 20 is arranged on the base assembly 10, and the fixture assembly 20 includes a fixture structure 21 and a clamping structure 22, and the fixture structure 21 and the clamping structure 22 cooperate with each other. The clamping structure 22 includes a first rotating shaft 221, a second rotating shaft 222, a first pressure rod 223, a second pressure rod 224 and a connecting rod 225. The first pressure rod 223 is rotatably arranged on the circumferential outer side of the first rotating shaft 221, and the second pressure rod 224 is rotatably arranged on the circumferential outer side of the second rotating shaft 222. The two ends of the connecting rod 225 are respectively connected to the first pressure rod 223 and the second pressure rod 224.

[0027] The technical solution of this embodiment is applied, and the fixture is installed on the CNC precision engraving processing platform and cooperates with the precision engraving tool. The fixture clamps the glass cover plate, and the precision engraving tool performs precision engraving operations on the glass cover plate. The fixture includes a base assembly 10 and a fixture assembly 20. The fixture assembly 20 is arranged on the base assembly 10. The fixture assembly 20 includes a fixture structure 21 and a clamping structure 22. The fixture structure 21 and the clamping structure 22 cooperate with each other. The fixture structure 21 is used to clamp a plurality of cover glass plates. The clamping structure 22 is used to apply a clamping force to the fixture structure 21. The clamping structure 22 includes a first rotating shaft 221, a second rotating shaft 222, a first pressing rod 223, a second pressing rod 224 and a connecting rod 225. A pressure rod 223 is rotatably arranged on the circumferential outer side of the first rotating shaft 221, and a second pressure rod 224 is rotatably arranged on the circumferential outer side of the second rotating shaft 222. Both ends of the connecting rod 225 are respectively connected to the first pressure rod 223 and the second pressure rod 224. This arrangement ensures that when the fine engraving tool performs fine engraving operation along the circumference of the glass cover plate, it will not be affected by the first pressure rod 223 and the second pressure rod 224, and can perform fine engraving operation continuously and smoothly, thereby greatly improving processing efficiency. The technical solution of this embodiment effectively solves the problem of low processing efficiency when fine engraving is performed on the glass cover plate in the prior art.

[0028] like Figure 2 As shown, in the technical solution of the first embodiment, the first pressure rod 223 has a first through hole, the first rotating shaft 221 has a top section and a matching section, the top section and the matching section are connected, the top section diameter is larger than the first through hole diameter, the top section and the first pressure rod 223 are pressed against each other, so that the first rotating shaft 221 can apply pressure downward, and the matching section is inserted into the first through hole. The first end of the connecting rod 225 is connected to the first pressure rod 223, the second end of the connecting rod 225 is connected to the second pressure rod 224, and the connecting rod 225 and the first pressure rod 223 and the second pressure rod 224 are all vertically arranged.

[0029] like Figure 2As shown, in the technical solution of the first embodiment, the clamping structure 22 also includes a first pressing block 226, a second pressing block 227 and a third pressing block 228. The second pressing block 227 is sleeved on the circumferential outer side of the first pressing block 226. The first pressing block 226 has a threaded hole, and the matching section has an external thread meshed with the threaded hole. By rotating the matching section, the matching section is moved downward, and the abutting section and the first pressing rod 223 abut against each other. As the first rotating shaft 221 is screwed, the degree of abutment between the abutting section and the first pressing rod 223 is intensified. The second pressing block 227 has an abutting groove, the first pressing block 226 is located in the abutting groove, the first rotating shaft 221 abuts against the bottom of the abutting groove, and the degree of abutment can be adjusted as the first rotating shaft 221 is screwed. The third pressing block 228 is arranged on the circumferential outer side of the second rotating shaft 222, and the third pressing block 228 and the second rotating shaft 222 are fixedly connected. The second end of the second rotating shaft 222 is fixedly connected to the base assembly 10 , and the second rotating shaft 222 supports the second pressing plate 212 .

[0030] It should be noted that the first pressure block 226 has a first straight cylindrical section and a second straight cylindrical section, the diameter of the first straight cylindrical section is larger than that of the second straight cylindrical section, the top groove is a stepped section, the top groove has a first top groove and a second top groove, the diameter of the first top groove is larger than that of the second top groove, the first top groove is located above the second top groove, the second straight cylindrical section and the second top groove have an interference fit, the side walls of the second straight cylindrical section and the second top groove are tightly fitted, the side walls of the first straight cylindrical section and the first top groove are tightly fitted, and the bottom walls of the first straight cylindrical section and the first top groove are butted against each other, the threaded hole is arranged at the center position of the second straight cylindrical section, the first rotating shaft 221 and the threaded hole are threadedly matched, the first rotating shaft 221 is butted against the bottom of the top groove, and at the same time, the first pressure block 226 is butted against the second pressure block 227, and the diameter of the first top groove is larger than that of the first straight cylindrical section, which enables the first straight cylindrical section not only to be butted against the first top groove, but also to facilitate clamping the first straight cylindrical section to separate the first pressure block 226 and the second pressure block 227.

[0031] like Figure 2 As shown, in the technical solution of the first embodiment, the clamping structure 22 further includes a bearing 229, which is sleeved on the circumferential outer side of the second rotating shaft 222, and the bearing 229 and the second rotating shaft 222 are interference fit, and the second pressing rod 224 has a matching hole, which is sleeved on the circumferential outer side of the bearing 229, and the matching hole and the bearing 229 are interference fit. This arrangement enables the second pressing rod 224 to reduce friction under the action of the bearing 229 during the rotation process, and at the same time, the vertical movement of the second pressing rod 224 can be limited.

[0032] like Figure 1 and Figure 2As shown, in the technical solution of the first embodiment, the fixture structure 21 includes a first pressing plate 211 and a second pressing plate 212. The first pressing plate 211 and the second pressing plate 212 correspond to each other, and there is a pressing space between the first pressing plate 211 and the second pressing plate 212. The glass cover plates to be finely engraved are placed between the first pressing plate 211 and the second pressing plate 212. 10-20 pieces can be placed each time, and fine engraving processing can be performed simultaneously, which greatly improves the processing efficiency.

[0033] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the first pressing plate 211 has a first matching groove, the second pressing plate 212 has a second matching groove, the second pressing block 227 is installed in the first matching groove, the first rotating shaft 221 and the second pressing block 227 are pressed against each other, and the second pressing block 227 and the first pressing plate 211 are pressed against each other, so as to achieve the clamping of the first pressing plate 211 and the second pressing plate 212, and also make the clamping force more uniform, and the third pressing block 228 is installed in the second matching groove, and the third pressing block 228 supports the second pressing plate 212. The first matching groove is located in the middle position of the first pressing plate 211, and the second matching groove is located in the middle position of the second pressing plate 212. It should be noted that the first pressing plate 211 and the second pressing plate 212 can be replaced according to the size of the glass cover plate, which greatly improves the flexibility.

[0034] like Figure 2 As shown, in the technical solution of the first embodiment, the connecting rod 225 has a long installation hole, the first pressure rod 223 has a first threaded hole, and the first screw passes through the long installation hole and is screwed with the first threaded hole. The first screw connects the first pressure rod 223 and the connecting rod 225 together, and the first screw can move along the extension direction of the long installation hole to adjust the distance between the first pressure rod 223 and the second pressure rod 224. The second pressure rod 224 has a second through hole, the connecting rod 225 has a second threaded hole, and the second screw passes through the second through hole and is screwed with the second threaded hole to connect the second pressure rod 224 and the connecting rod 225 together.

[0035] It should be noted that the first pressure rod 223 and the second pressure rod 224 are pressure rods of fixed length, and the distance from the first rotating shaft 221 to the connecting rod 225 is greater than the distance from the first rotating shaft 221 to the corner of the first pressure plate 211. This setting can avoid interference between the connecting rod 225 and the first pressure plate 211 during rotation.

[0036] like Figure 3As shown, the difference between the second embodiment and the first embodiment is that the first pressure rod 223 and the second pressure rod 224 are both telescopic rods. The first pressure rod 223 includes a first telescopic pressure rod 2231, a second telescopic pressure rod 2232 and a first limiting portion 2233, the second telescopic pressure rod 2232 is movably arranged in the first telescopic pressure rod 2231, and the overall length of the first pressure rod 223 is adjusted by moving the second telescopic pressure rod 2232, the first limiting portion 2233 is arranged on the outer surface of the first telescopic pressure rod 2231, the second telescopic pressure rod 2232 has a plurality of first limiting holes, the first limiting portion 2233 and the first limiting holes cooperate, the first limiting portion 2233 includes a limiting body and a limiting rod, the limiting body is fixedly connected to the outer surface of the first telescopic pressure rod 2231, the first end of the limiting rod is rotatably connected to the limiting body, and the second end of the limiting rod has a hook, which can be hung with the first limiting hole to achieve the limitation of the second telescopic pressure rod 2232.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fixture, which is installed on a CNC precision engraving processing platform and cooperates with a precision engraving tool, characterized in that: include: A base assembly (10); A clamp assembly (20), wherein the clamp assembly (20) is arranged on the base assembly (10), and the clamp assembly (20) includes a clamp structure (21) and a clamping structure (22), wherein the clamp structure (21) and the clamping structure (22) cooperate with each other, and the clamping structure (22) includes a first rotating shaft (221), a second rotating shaft (222), a first pressure rod (223), a second pressure rod (224) and a connecting rod (225), wherein the first pressure rod (223) is rotatably arranged on the circumferential outer side of the first rotating shaft (221), and the second pressure rod (224) is rotatably arranged on the circumferential outer side of the second rotating shaft (222), and the two ends of the connecting rod (225) are respectively connected to the first pressure rod (223) and the second pressure rod (224).

2. The clamp according to claim 1, characterized in that: The first pressure rod (223) has a first through hole, and the first rotating shaft (221) has a top-butting section and a matching section, the top-butting section and the matching section are connected, the diameter of the top-butting section is larger than the diameter of the first through hole, the top-butting section and the first pressure rod (223) are abutted against each other, and the matching section is arranged in the first through hole.

3. The clamp according to claim 2, characterized in that: The clamping structure (22) further comprises a first clamping block (226), a second clamping block (227) and a third clamping block (228); the second clamping block (227) is sleeved on the circumferential outer side of the first clamping block (226); the first clamping block (226) has a threaded hole; the mating section has an external thread engaged with the threaded hole; the third clamping block (228) is arranged on the circumferential outer side of the second rotating shaft (222); and the third clamping block (228) and the second rotating shaft (222) are fixedly connected.

4. The clamp according to claim 3, characterized in that: The clamping structure (22) also includes a bearing (229), which is sleeved on the circumferential outer side of the second rotating shaft (222), and the bearing (229) and the second rotating shaft (222) are interference fit. The second pressure rod (224) has a matching hole, which is sleeved on the circumferential outer side of the bearing (229), and the matching hole and the bearing (229) are interference fit.

5. The clamp according to claim 4, characterized in that: The clamp structure (21) comprises a first pressing plate (211) and a second pressing plate (212), the first pressing plate (211) and the second pressing plate (212) correspond to each other, and a pressing space is provided between the first pressing plate (211) and the second pressing plate (212).

6. The clamp according to claim 5, characterized in that: The first pressing plate (211) has a first matching groove, the second pressing plate (212) has a second matching groove, the second pressing block (227) is installed in the first matching groove, and the third pressing block (228) is installed in the second matching groove.

7. The clamp according to claim 1, characterized in that: The connecting rod (225) has a long mounting hole, the first pressing rod (223) has a first threaded hole, and the first screw passes through the long mounting hole and is screwed to the first threaded hole.

8. The clamp according to claim 7, characterized in that: The second pressure rod (224) has a second through hole, the connecting rod (225) has a second threaded hole, and the second screw passes through the second through hole and is screwed to the second threaded hole.

9. The clamp according to claim 1, characterized in that: The first pressure rod (223) and the second pressure rod (224) are both telescopic rods.

10. The clamp according to claim 9, characterized in that The first pressure rod (223) includes a first telescopic pressure rod (2231), a second telescopic pressure rod (2232) and a first limiting portion (2233); the second telescopic pressure rod (2232) is movably arranged in the first telescopic pressure rod (2231); the first limiting portion (2233) is arranged on the outer surface of the first telescopic pressure rod (2231); the second telescopic pressure rod (2232) has a plurality of first limiting holes; the first limiting portion (2233) and the first limiting hole cooperate with each other.

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