Clamp

Abstract

The utility model discloses a clamp, which belongs to the technical field of machine manufacturing and comprises a base, a first fixing structure and a second fixing structure. The base is provided with a milling machining area; the first fixing structure comprises two first fixing pieces, the two first fixing pieces are detachably arranged on the base and located on the two opposite sides of the milling machining area correspondingly, and the first fixing pieces are used for pressing a workpiece so that an external milling device can conduct primary milling on the workpiece; the second fixing structure comprises two second fixing pieces, the two second fixing pieces are detachably arranged on the base and located between the two first fixing pieces correspondingly, the second fixing pieces are used for pressing the workpiece, and the edge part, close to the other second fixing piece, of each second fixing piece serves as a first guiding boundary for secondary milling of the workpiece. And the edge part, far away from the other second fixing piece, of the second fixing piece is used as a second guide boundary for secondary milling of the workpiece. According to the fixture, a workpiece which has a plurality of machining procedures and needs to be finely machined is fixed.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing technology, and in particular to a clamp. Background Technology

[0002] Existing fixtures are typically simple in structure and can only provide basic clamping for workpieces. However, in the processing of 3C products, due to the numerous processing steps, existing fixtures cannot meet the needs of multi-step processing, nor can they meet the requirements for precision machining of 3C products. Therefore, how to fix workpieces with multiple processing steps and requiring precision machining to improve the stability of milling is an urgent technical problem to be solved. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a fixture capable of fixing workpieces with multiple machining operations and requiring precision machining, thereby improving the stability of workpiece milling.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a clamp, comprising:

[0006] A base, wherein the base is provided with a milling processing area;

[0007] The first fixing structure includes two first fixing members, which are detachably mounted on the base and located on opposite sides of the milling processing area. The first fixing members are used to press the workpiece so that the external milling device can perform the initial milling on the workpiece.

[0008] The second fixing structure includes two second fixing members, which are detachably mounted on the base and located between the two first fixing members respectively. The second fixing members are used to press the workpiece. The edge portion of the second fixing member near the other second fixing member serves as the first guide boundary for the secondary milling of the workpiece, and the edge portion of the second fixing member away from the other second fixing member serves as the second guide boundary for the secondary milling of the workpiece.

[0009] The fixture according to the first aspect of this application has at least the following beneficial effects: The workpiece is fixed by two first fixing members, keeping it fixed during the initial milling process and reducing the probability of displacement during the initial milling. The initial processing specifically involves milling the surface of the workpiece. After the initial milling, the workpiece is fixed by two second fixing members, keeping it fixed during the secondary milling process and reducing the probability of displacement during the secondary milling. The secondary milling specifically involves cutting off the connection between the workpiece and the surrounding scrap and finishing the sides of the workpiece. The first and second guide boundaries can guide the milling cutter to separate the workpiece from the surrounding scrap during the secondary milling process and can limit the processing position of the milling cutter during the secondary milling process, making the position of the milling cutter for fine processing of the workpiece more precise. Therefore, compared with the prior art, this application achieves the fixation of workpieces with multiple processing steps and requiring fine processing by using first and second fixing members. Therefore, this application solves the technical problem of how to fix workpieces with multiple processing steps and requiring fine processing, improving the stability of workpiece milling.

[0010] According to some embodiments of this application, a protective film is provided on the lower surface of the second fastener, the protective film being used to isolate the second fastener and the workpiece.

[0011] According to some embodiments of this application, the base is provided with a positioning post on each of the other two opposite sides of the milling processing area, and the second fixing member is provided with positioning holes that match the positioning posts.

[0012] According to some embodiments of this application, the base is provided with a limiting hole, which is used to pass through an external limiting member to limit the base.

[0013] According to some embodiments of this application, a support block is provided on the side of the milling processing area near the first fixing member, and the support block is used to support the workpiece.

[0014] According to some embodiments of this application, the base is provided with handles on both sides near the first fixing member.

[0015] According to some embodiments of this application, the end of the first fixing member facing the second fixing member is provided with a relief slope.

[0016] According to some embodiments of this application, the first fixing member is provided with a first connecting hole, and the base is provided with a first fixing hole at the position corresponding to the first connecting hole. The first fixing member is fixed to the base by passing through the first connecting hole and the first fixing hole in sequence by an external connector.

[0017] According to some embodiments of this application, the second fixing member is provided with a second connecting hole, and the base is provided with a second fixing hole at the position corresponding to the second connecting hole. The second fixing member is fixed to the base by passing through the second connecting hole and the second fixing hole in sequence by an external connector.

[0018] According to some embodiments of this application, the base is provided with a third fixing hole in the milling processing area between the two second fixing members, and the workpiece is fixed to the base by passing through the hole on the workpiece and the third fixing hole in sequence through an external connector.

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the clamp of this application;

[0021] Figure 2 This is an exploded view of one embodiment of the fixture of this application;

[0022] Figure 3 This is a schematic diagram of the base of one embodiment of the clamp of this application.

[0023] Figure label:

[0024] Base 100, milling area 110, positioning post 120, limiting hole 130, support block 140, third fixing hole 150

[0025] First fixing structure 200, first fixing member 210, clearance slope 211, first connecting hole 220, first fixing hole 230

[0026] The system includes a second fixing structure 300, a second fixing member 310, a first guide boundary 311, a second guide boundary 312, a positioning hole 320, a second connecting hole 330, and a second fixing hole 340.

[0027] Handle 400. Detailed Implementation

[0028] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, and right, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0030] In the description of this application, "several" means one or more, "more than" 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. The use of "first" and "second" in the description is merely for 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.

[0031] In the description of this application, unless otherwise expressly defined, terms such as "setup," "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 application in conjunction with the specific content of the technical solution.

[0032] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0033] Reference Figure 1 , 3 As shown, the fixture includes a base 100, a first fixing structure 200, and a second fixing structure 300. The base 100 is provided with a milling processing area 110; the first fixing structure 200 includes two first fixing members 210, which are detachably mounted on the base 100 and located on opposite sides of the milling processing area 110. The first fixing members 210 are used to clamp the workpiece so that the external milling device can perform initial milling on the workpiece; the second fixing structure 300 includes two second fixing members 310, which are detachably mounted on the base 100 and located between the two first fixing members 210. The second fixing members 310 are used to clamp the workpiece. The edge portion of the second fixing member 310 closer to the other second fixing member 310 serves as a first guide boundary 311 for secondary milling of the workpiece, and the edge portion of the second fixing member 310 farther from the other second fixing member 310 serves as a second guide boundary 312 for secondary milling of the workpiece.

[0034] The above embodiment uses two first fixing members 210 to fix the workpiece, keeping it fixed during the initial milling process and reducing the probability of displacement. The initial processing specifically involves milling the surface of the workpiece. After the initial milling, two second fixing members 310 fix the workpiece, keeping it fixed during the secondary milling process and reducing the probability of displacement. The secondary milling specifically involves cutting off the connection between the workpiece and the surrounding scrap and finishing the sides of the workpiece. The first guide boundary 311 and the second guide boundary 312 can guide the milling cutter to separate the workpiece from the surrounding scrap during the secondary milling process and can limit the processing position of the milling cutter during the secondary milling process, making the position of the milling cutter for fine processing of the workpiece more precise. This embodiment achieves the fixation of workpieces with multiple processing steps and requiring fine processing, improving the stability of workpiece milling processing.

[0035] The embodiments of this application do not limit the number of milling processing area 110, first fixing member 210 and second fixing member 310, and those skilled in the art can make adjustments according to the actual situation.

[0036] For example, such as Figure 1 , 3Taking the configuration of four milling processing areas 110, four first fixing members 210, and four second fixing members 310 as an example: Two milling processing areas 110 are located at the first end of the base 100, namely the first milling processing area 110 and the second milling processing area 110. The other two milling processing areas 110 are located at the second end of the base 100, namely the third milling processing area 110 and the fourth milling processing area 110. In the figure, the left side represents the first end of the base 100, and the right side represents the second end of the base 100. The distance between the first and second milling processing areas 110 of the base 100 is equal to the distance between the third and fourth milling processing areas 110. The two first fixing members 210 are respectively located at opposite ends of the first and second milling processing areas 110. The other two first fixing members 210 are respectively located at opposite ends of the third and fourth milling processing areas 110. Two second fixing members 310 are disposed between the two first fixing members 210 distributed in the first milling processing area 110 and the second milling processing area 110. Two more second fixing members 310 are disposed between the two first fixing members 210 distributed in the third and fourth milling processing areas 110. During workpiece machining, the workpiece is fixed by the first fixing members 210 for preliminary machining. After preliminary machining, the workpiece is fixed by the second fixing members 310 for fine machining. The milling cutter can mill the workpiece along the first guide boundary 311 and the second guide boundary 312 to separate the workpiece from the surrounding waste and perform fine machining. By setting four milling processing areas 110, four first fixing members 210, and four second fixing members 310, multiple workpieces can be machined simultaneously, improving machining efficiency.

[0037] Understandably, a protective film (not shown in the figure) is provided on the lower surface of the second fastener 310. The protective film is used to isolate the second fastener 310 and the workpiece, reducing the probability of the workpiece being damaged due to contact with the second fastener 310. At the same time, because the protective film is thin, it can reduce the probability of the workpiece vibrating due to stress.

[0038] Understandably, referring to Figure 2 , 3 As shown, the base 100 has a positioning post 120 on each of the other two sides opposite to the milling processing area 110. The second fixing member 310 is provided with positioning holes 320 that match the positioning posts 120. By setting the positioning posts 120 and positioning holes 320, when the second fixing member 310 fixes the workpiece, the second fixing member 310 is kept stable, reducing the probability of the second fixing member 310 moving, so that the workpiece is kept fixed.

[0039] The number of positioning pins 120 and positioning holes 320 in this embodiment is not limited, and those skilled in the art can make adjustments according to the actual situation.

[0040] For example, such as Figure 2 , 3 As shown, taking the setting of eight positioning posts 120 and eight positioning holes 320 as an example. Two positioning posts 120 are respectively set at opposite ends of the first milling processing area 110 and the second milling processing area 110 parallel to the shorter edge of the base 100, with the four positioning posts 120 aligned in pairs. Two positioning posts 120 are respectively set at opposite ends of the third milling processing area 110 parallel to the shorter edge of the base 100, with the four positioning posts 120 aligned in pairs. Each second fixing member 310 is provided with two positioning holes 320, located at both ends of the second fixing member 310 facing the shorter edge of the base 100. Before secondary processing, the positioning posts 120 distributed on both sides of the milling processing area 110 pass through the positioning holes 320 on the second fixing member 310 to fix the second fixing member 310. During secondary processing, the second fixing member 310 can remain stable, reducing the probability of movement of the second fixing member 310 and thus workpiece movement.

[0041] Understandably, referring to Figure 3 As shown, the base 100 is provided with a limiting hole 130. The limiting hole 130 is used to pass through an external limiting member to limit the base 100. The base 100 is fixed by the external limiting member passing through the limiting hole 130 on the base 100, so as to reduce the probability that the movement of the base 100 during the processing will affect the processing of the workpiece.

[0042] For example, such as Figure 3 As shown, taking the setting of two limiting holes 130 as an example, one limiting hole 130 is set on the side of the first milling processing area 110 near the shorter edge of the base 100, and the other limiting hole 130 is set on the side of the fourth milling processing area 110 near the shorter edge of the base 100. The two limiting holes 130 are aligned. Before processing the workpiece, the external limiting member passes through the limiting hole 130 of the base 100 to limit the base 100. During the processing of the workpiece, the base 100 remains stable, reducing the probability of workpiece movement.

[0043] Understandably, referring to Figure 3 As shown, a support block 140 is provided on the side of the milling processing area 110 near the first fixing member 210. The support block 140 is used to support the workpiece. The support block 140 supports the workpiece during the processing, thereby reducing the probability of the workpiece being deformed by pressure during the processing.

[0044] For example, such as Figure 3As shown, each milling processing area 110 is provided with two support blocks 140. The two support blocks 140 are respectively located at both ends of the milling processing area 110 near the first fixing member 210, and the two support blocks 140 are staggered. During the processing of the workpiece, since the workpiece has an upward bulging structure, the support blocks 140 support the bulging structure of the workpiece, reducing the probability of workpiece deformation caused by the pressure of the milling tool during processing.

[0045] Understandably, referring to Figure 3 As shown, handles 400 are provided on both sides of the base 100 near the first fixing member 210, which makes it more convenient for workers to move the base 100.

[0046] Understandably, referring to Figure 2 As shown, the first fixing member 210 has a relief slope 211 at one end facing the second fixing member 310. The relief slope 211 allows the operator to observe the processing status of the workpiece during the processing and adjust the processing progress in a timely manner.

[0047] Understandably, referring to Figure 1 , 2 As shown in Figure 3, the first fixing member 210 is provided with a first connecting hole 220, and the base 100 is provided with a first fixing hole 230 at the position corresponding to the first connecting hole 220. The first fixing member 210 is fixed to the base 100 by passing through the first connecting hole 220 and the first fixing hole 230 in sequence through an external connector, thereby reducing the probability of the workpiece moving due to the movement of the first fixing member 210 during the processing.

[0048] For example, such as Figure 1 , 2 As shown in Figure 3, each milling processing area 110 on the base 100 has a first fixing hole 230 on each side near the handle 400, and each first fixing member 210 has two first connecting holes 220. In some embodiments, the external connecting member can be a screw, which can pass through the first connecting hole 220 and the first fixing hole 230 to more firmly fix the first fixing member 210 to the base 100, so that the workpiece is more firmly fixed.

[0049] Understandably, referring to Figure 1 , 2 As shown in Figure 3, the second fixing member 310 is provided with a second connecting hole 330, and the base 100 is provided with a second fixing hole 340 at the position corresponding to the second connecting hole 330. The second fixing member 310 is fixed to the base 100 by passing through the second connecting hole 330 and the second fixing hole 340 in sequence through the external connecting member, thereby reducing the probability of the workpiece moving due to the movement of the second fixing member 310 during the processing.

[0050] For example, such as Figure 1 , 2 As shown in Figure 3, three second positioning holes 320 are provided between every two milling processing areas 110. Two of the second positioning holes 320 are located on the sides of the positioning posts 120 distributed at both ends of the two milling processing areas 110, away from the two milling processing areas 110. One second positioning hole 320 is located between the two milling processing areas 110. The three second positioning holes 320 are aligned. Each second fixing member 310 is provided with three second connecting holes 330. In some embodiments, the external connecting member can be a screw. The screw passes through the second connecting holes 330 and the second positioning holes 320 in sequence to more firmly fix the second fixing member 310 to the base 100, thereby more firmly fixing the workpiece.

[0051] Understandably, referring to Figure 1 , 2 As shown in Figure 3, the base 100 has a third fixing hole 150 between the two second fixing members 310 in the milling processing area 110. The workpiece is fixed to the base 100 by passing through the hole on the workpiece and the third fixing hole 150 in sequence through the external connecting member, thereby reducing the probability of the workpiece moving during the processing.

[0052] For example, such as Figure 1 , 2 As shown in Figure 3, each milling processing area 110 on the base 100 is provided with a third fixing hole 150. The third fixing hole 150 is located between the two first fixing members 210 and aligned with the limiting hole 130. In some embodiments, the external connecting member can be a screw. The screw passes through the hole on the workpiece and the third fixing hole 150 in sequence to fix the workpiece more firmly on the base 100, reducing the probability of workpiece movement during processing.

[0053] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application 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 this application.

Claims

1. A clamp, characterized in that, include: A base, wherein the base is provided with a milling processing area; The first fixing structure includes two first fixing members, which are detachably mounted on the base and located on opposite sides of the milling processing area. The first fixing members are used to press the workpiece so that the external milling device can perform the initial milling on the workpiece. The second fixing structure includes two second fixing members, which are detachably mounted on the base and located between the two first fixing members respectively. The second fixing members are used to press the workpiece. The edge portion of the second fixing member near the other second fixing member serves as the first guide boundary for the secondary milling of the workpiece, and the edge portion of the second fixing member away from the other second fixing member serves as the second guide boundary for the secondary milling of the workpiece.

2. The clamp according to claim 1, characterized in that, A protective film is provided on the lower surface of the second fastener, and the protective film is used to isolate the second fastener and the workpiece.

3. The clamp according to claim 1, characterized in that, The base is provided with a positioning post on each of the other two sides opposite to the milling processing area, and the second fixing member is provided with positioning holes that match the positioning posts.

4. The clamp according to claim 1, characterized in that, The base is provided with a limiting hole, which is used to pass through an external limiting member to limit the base.

5. The clamp according to claim 1, characterized in that, A support block is provided on the side of the milling processing area near the first fixing member, and the support block is used to support the workpiece.

6. The clamp according to claim 1, characterized in that, The base is provided with handles on both sides near the first fixing member.

7. The clamp according to claim 1, characterized in that, The end of the first fixing member facing the second fixing member is provided with a relief slope.

8. The clamp according to claim 1, characterized in that, The first fixing member is provided with a first connecting hole, and the base is provided with a first fixing hole at the position corresponding to the first connecting hole. The first fixing member is fixed to the base by passing through the first connecting hole and the first fixing hole in sequence by an external connecting member.

9. The clamp according to claim 1, characterized in that, The second fastener is provided with a second connecting hole, and the base is provided with a second fixing hole at the position corresponding to the second connecting hole. The second fastener is fixed to the base by passing through the second connecting hole and the second fixing hole in sequence via an external connector.

10. The clamp according to claim 1, characterized in that, The base is provided with a third fixing hole in the milling processing area between the two second fixing members. The workpiece is fixed to the base by passing through the hole on the workpiece and the third fixing hole in sequence through the external connector.

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