Clamp for small parts

Abstract

A clamp for small parts comprises an operation platform, a clamping piece for clamping a workpiece to be machined is arranged on the operation platform, the part to be machined of the workpiece to be machined comprises a first machining part and a second machining part, a transition part is connected between the first machining part and the second machining part, and the transition part and the operation platform are in a preset shape. The device is characterized in that the operation platform further comprises positioning grooves used for containing workpieces to be machined, each positioning groove is provided with a first positioning station used for installing the corresponding transition part, and the first positioning stations are used for assembling the workpieces to be machined into the final positions and clamping the workpieces by means of matched clamping pieces; at least the local structure of each clamping piece corresponds to the shape of the transition part of the clamping piece, and the first machining part and the second machining part are exposed on the two sides of the clamping piece to be machined. Therefore, the clamp not only can clamp irregular small parts, but also can process the front and back surfaces of the processing areas of the small parts at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp used for small parts. Background Art

[0002] In the processing of small parts, it is often necessary to fix and clamp the small parts before the subsequent process can be carried out. The clamp for small parts in the prior art is shown in the Chinese utility model "A small parts processing clamp" with patent number CN202322493151.2 (authorization announcement number CN220863725U), which includes a clamp body, a movable block and a pusher, wherein the clamp body includes a first side plate, a second side plate and a clamp base, the movable block is slidably connected to the clamp base, and the pusher passes through the second side plate and is connected to the movable block. By pushing the pusher and with the help of the movable block, the second side plate and the first side plate are driven to move closer to each other, thereby clamping and fixing the small parts.

[0003] Although the above-mentioned clamp can clamp small parts, if the small parts to be clamped are Figure 1 and Figure 2 As shown, another problem will arise. The small component includes a slender "S"-shaped main body 1', which is divided into an "S"-shaped connecting portion 11' arranged in the middle and a first branch 12' and a second branch 13' arranged at both ends of the connecting portion 11'. Workers usually need to use a clamp to clamp the main body 1' so as to process the front and back sides of the first branch 12' and the second branch 13'. If the above-mentioned clamp is used to clamp the main body 1′, since the first branch 12′ and the second branch 13′ need to be exposed to the clamp for processing, the clamp needs to clamp the connecting portion 11′; however, since the two side plates of the above-mentioned clamp are in the shape of straight plates, the clamping space enclosed by the two side plates is also in a regular shape accordingly, which is difficult to adapt to the "S"-shaped connecting portion 11′, making it impossible to stably clamp the connecting portion 11′, and ultimately easily cause the first branch 12′ and the second branch 13′ to rotate, and then the first branch 12′ and the second branch 13′ cannot be accurately processed; not only that, the small parts to be clamped have other irregular shapes in addition to the above-mentioned "S"-shaped connecting portion 11′. In addition, the above-mentioned clamp cannot process the front and back sides of the first branch 12′ and the second branch 13′ at the same time. The clamp can only realize the front and back processing by clamping the front and back sides of the main body 1′ respectively, which makes the operation of the clamp more inconvenient and increases the labor intensity of the workers. Therefore, in order to improve the processing flexibility of small parts to be clamped, it is necessary to improve the clamps used for small parts. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a clamp which can not only clamp irregular small parts but also facilitate front and back surface processing in view of the above-mentioned existing technical status.

[0005] The technical solution adopted by the utility model to solve the technical problem is as follows: the fixture for small parts includes an operating platform, on which a clamping member for clamping a workpiece to be processed is arranged, wherein the to-be-processed portion of the workpiece to be processed is a first processing portion and a second processing portion, and a transition portion having a preset shape with the operating platform is connected between the first processing portion and the second processing portion;

[0006] Features:

[0007] The operating platform also includes positioning grooves for placing workpieces to be processed, including at least two positioning grooves, each of which has a first positioning station installed corresponding to the transition part, the first positioning station is used to assemble the workpiece to be processed into the final position and clamp it with the help of the corresponding clamping parts, each of the clamping parts has at least a partial structure corresponding to the shape of the respective transition parts, and the first processing part and the second processing part are respectively exposed on both sides of the clamping part for processing.

[0008] In order to enable the bottom of the first processing part and the second processing part to be processed, preferably, the second positioning station and the third positioning station are provided on both sides of the first positioning station for respectively exposing the processing areas of the first processing part and the second processing part, and the bottom of the second positioning station and / or the third positioning station has an operation hole for connecting it with the outside, and the bottom of the first processing part and / or the second processing part is exposed to the positioning groove for processing by means of the operation hole. The bottom of the second positioning station for installing the first processing part and the third positioning station for installing the second processing part are provided with an operation hole, through which the bottom of the first processing part and the second processing part can be processed.

[0009] In order to enable the front of the first processing part and the second processing part to be processed while the clamping part clamps them, preferably, the local structure of the clamping part is in the shape corresponding to the transition part, and the remaining structure of the clamping part is in the shape corresponding to the first processing part and / or the second processing part. The clamping part is provided with an opening for processing the processing area of ​​the first processing part and / or the second processing part, and the clamping part cooperates with the positioning groove to clamp the workpiece to be processed. By providing the opening on the clamping part, the worker can process the front of the first processing part and the second processing part.

[0010] In order to adjust the degree of clamping when the first processing part and the second processing part are installed in the second positioning station and the third positioning station, preferably, the second positioning station and the third positioning station are respectively provided with a limit space for installing the first processing part and the second processing part, and the second positioning station and / or the third positioning station are provided with an adjusting member for adjusting the size of the limit space. The adjusting member is rotatably installed on one side of the second positioning station and / or the third positioning station, and according to the workpieces to be processed of different sizes, the adjusting member is rotated to adjust the limit space of the second positioning station and / or the third positioning station, thereby clamping the first processing part and / or the second processing part.

[0011] In order to enable the adjusting member to rotate and adjust the limiting space of the second positioning station and / or the third positioning station, preferably, the adjusting member includes an adjusting portion and a rotating shaft arranged below the adjusting portion, the adjusting portion has arc portions with different radial lengths in the circumferential direction, so that it can correspond to different limiting positions at different rotation angles, and the adjusting portion can rotate to the corresponding limiting position when the rotating shaft is actuated and rotated to a preset direction. Correspondingly, a through hole for the rotating shaft to rotate is provided in the second positioning station and / or the third positioning station. The rotating shaft drives the adjusting portion to rotate, and the adjusting portion can be arranged on one side of the second positioning station and / or the third positioning station. The adjusting portion has arc portions with different radial lengths in the circumferential direction, so that the rotating adjusting portion can adjust the limiting space size of the second positioning station and / or the third positioning station.

[0012] In order to improve the space utilization of the operating platform, preferably, the operating platform is provided with a plurality of the positioning grooves, and each of the clamping members corresponds to two adjacent positioning grooves, so that two adjacent workpieces to be processed can be clamped at the same time. The plurality of positioning grooves can accommodate a plurality of workpieces to be processed, so that the plurality of workpieces to be processed can be processed at the same time, and the clamping member can clamp two adjacent workpieces to be processed, making the clamp more convenient to operate.

[0013] In order to enable the clamping member to clamp the workpiece to be processed, preferably, the clamping member clamps the workpiece to be processed by a bolt, the bolt is arranged between two adjacent positioning grooves, the clamping member is provided with a through hole for the bolt to pass through, the operating platform is provided with a mounting groove corresponding to the through hole, the bolt passes through the through hole and the mounting groove in sequence to achieve the clamping member clamping two adjacent workpieces to be processed. The bolts install the clamping member on the operating platform, and the clamping member can clamp the workpiece to be processed by tightening the bolts.

[0014] In order to enable the clamping member to be quickly reset, preferably, an elastic member is sleeved on the bolt, and the elastic member makes the clamping member have a tendency to move away from the positioning groove. The clamping member is reset by the upward force exerted by the elastic member.

[0015] Furthermore, the upper end of the elastic member abuts against the lower surface of the clamping member, and the lower end of the elastic member abuts against the bottom of the installation slot. When the clamping member is not subjected to the downward force of the bolt, that is, when the clamping member does not clamp the transition portion, the elastic member causes the clamping member to move upward, thereby facilitating the user to load and unload the workpiece to be processed.

[0016] In order to enable the clamping member to accurately clamp the workpiece to be processed, preferably, at least two positioning pins are provided on the operating platform, and positioning holes matching the positioning pins are provided on the clamping member, and each positioning pin passes through the corresponding positioning hole, so that each clamping member is positioned on the operating platform. By using the cooperation of the positioning pins and the positioning holes, the clamping member is accurately installed on the operating platform, and then the clamping member accurately clamps the workpiece to be processed.

[0017] Compared with the prior art, the utility model has the advantages that: the transition part is clamped in the positioning groove by using the first positioning station and the clamping member corresponding to the shape of the transition part of the workpiece to be processed, and the cooperation of the first positioning station and the clamping member can assemble the workpiece to be processed into the final position, and then the first processing part and the second processing part exposed on both sides of the clamping member are processed on the front and back sides. Therefore, the clamp of the present application can not only clamp irregular small parts, but also process the front and back sides of the processing area of ​​small parts at the same time, thereby improving the clamping effect of the clamp and improving the working efficiency of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of small and medium-sized parts in the background technology of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of small and medium-sized parts in the background technology of the utility model from another perspective;

[0020] Figure 3 It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the operating platform in the embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping member in the embodiment of the utility model;

[0023] Figure 6 A cross-sectional view of an embodiment of the utility model;

[0024] Figure 7 is a cross-sectional view of an embodiment of the utility model at another viewing angle;

[0025] Figure 8It is a schematic diagram of the structure of the adjusting member in the embodiment of the utility model. DETAILED DESCRIPTION

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] like Figures 3 to 8 Shown is the best embodiment of the utility model.

[0028] like Figure 3 and Figure 4 As shown, the fixture of this embodiment can clamp the workpiece 7 to be processed, and the parts to be processed of the workpiece 7 to be processed are the first processing part 71 and the second processing part 73. A transition part 72 is connected between the first processing part 71 and the second processing part 73. The fixture needs to clamp the workpiece 7 to be processed, and then process the front side of the first processing part 71 and the back side of the second processing part 73. The fixture of this embodiment includes an operating platform 1, and the transition part 72 of the workpiece 7 to be processed and the operating platform 1 are in a preset shape. The operating platform 1 is provided with a plurality of positioning grooves 2 for placing the workpiece 7 to be processed and clamping members 3 capable of clamping the workpiece 7 to be processed, and each clamping member 3 corresponds to two adjacent positioning grooves 2, so that two adjacent workpieces 7 to be processed can be clamped at the same time. Among them, each positioning groove 2 has a first positioning station 21 installed corresponding to the transition part 72, a second positioning station 22 installed corresponding to the first processing part 71, and a third positioning station 23 installed corresponding to the second processing part 73. The first positioning station 21 is used to assemble the workpiece 7 to be processed into the final position and clamp it with the help of a corresponding clamping member 3. The bottom of the third positioning station 23 has an operating hole 24 connecting it to the outside. With the help of the operating hole 24, the bottom of the second processing part 73 is exposed to the third positioning station 23 for reverse processing.

[0029] like Figures 5 to 7As shown, at least a partial structure of the clamping member 3 in this embodiment corresponds to the shape of two adjacent transitional portions 72, and the remaining structure of the clamping member 3 corresponds to the second processing portion 73, so that the clamping member 3 can clamp the transitional portions 72 and the second processing portion 73 of two adjacent workpieces 7 to be processed, so that the front of the first processing portion 71 is exposed to the second positioning station 22 for front processing. In addition, the clamping member 3 clamps the transitional portion 72 and the second processing portion 73 by means of bolts 5, the bolts 5 are arranged between two adjacent positioning grooves 2, the bolts 5 install the clamping member 3 on the operating platform 1, and the clamping member 3 can clamp the workpiece 7 to be processed by tightening the bolts 5, the clamping member 3 is provided with a through hole 31 for the bolt 5 to pass through, and the operating platform 1 is provided with a mounting groove 11 corresponding to the through hole 31, and the bolts 5 pass through the through hole 31 and the mounting groove 11 in sequence to realize that the clamping member 3 clamps the transitional portions 72 and the second processing portion 73 of two adjacent workpieces 7 to be processed. The bolt 5 is sleeved with an elastic member 6, the upper end of the elastic member 6 abuts against the lower surface of the clamping member 3, and the lower end of the elastic member 6 abuts against the bottom of the installation groove 11, and the elastic member 6 makes the clamping member 3 tend to be away from the positioning groove 2. In addition, two positioning pins 12 are provided on the operating platform 1, and positioning holes 32 matching each positioning pin 12 are respectively provided on the clamping member 3, and each positioning pin 12 passes through the corresponding positioning hole 32, so that each clamping member 3 is positioned on the operating platform 1.

[0030] like Figure 4 and Figure 8 As shown, in this embodiment, a limiting space for installing the first processing part 71 is provided in the second positioning station 22, and an adjusting member 4 for adjusting the size of the limiting space is provided in the second positioning station 22. The adjusting member 4 is rotatably installed on one side of the second positioning station 22. According to the size of the first processing part 71, the adjusting member 4 is rotated to adjust the limiting space of the second positioning station 22, thereby clamping the first processing part 71. Among them, the adjusting member 4 includes an adjusting portion 41 and a rotating shaft 42 arranged below the adjusting portion 41. The adjusting portion 41 has an arc portion with different radial lengths in the circumferential direction, so that it can correspond to different limiting positions at different rotation angles. When the rotating shaft 42 is actuated to rotate to a preset direction, the adjusting portion 41 can rotate to the corresponding limiting position. Correspondingly, a through hole 25 for the rotating shaft 42 to be rotated is provided in the second positioning station 22. The rotating shaft 42 rotates in the through hole 25, thereby driving the adjusting portion 41 to rotate to adjust the size of the limiting space of the second positioning station 22.

[0031] The working process of this embodiment is as follows: first, the workpiece 7 to be processed is placed in the positioning groove 2, that is, the transition part 72 is placed in the first positioning station 21, the first processing part 71 is placed in the second positioning station 22, and the second processing part 73 is placed in the third positioning station 23; then, the clamping member 3 is positioned on the operating platform 1 through the cooperation of the positioning pin 12 and the positioning hole 32, and the bolt 5 is then passed through the through hole 31 and the mounting groove 11 in sequence and tightened, so that the clamping member 3 clamps the transition part 72 and the second processing part 73 of the two adjacent workpieces 7 to be processed. The second processing part 73, and the second processing part 73 exposes its reverse side to the clamping member 3 by means of the working hole 24 at the bottom; finally, the adjusting part 41 of the adjusting member 4 is rotated to make the side wall of the adjusting part 41 abut against the side wall of the first processing part 71, thereby clamping the first processing part 71 in the second positioning station 22, and the front side of the first processing part 71 is exposed to the clamping member 3, thereby completing the clamping of the workpiece 7 to be processed, and the worker can process the front side of the first processing part 71 and the reverse side of the second processing part 73 at the same time.

Claims

1. A fixture for small parts, comprising an operating platform (1), on which a clamping member (3) for clamping a workpiece (7) to be processed is arranged, wherein: The parts to be processed of the workpiece (7) to be processed are a first processing part (71) and a second processing part (73), and a transition part (72) having a preset shape with the operating platform (1) is connected between the first processing part (71) and the second processing part (73); Features: The operating platform (1) also includes positioning grooves (2) for placing the workpiece (7) to be processed, including at least two positioning grooves (2), each of which has a first positioning station (21) installed corresponding to the transition part (72), and the first positioning station (21) is used to assemble the workpiece (7) to be processed into a final position and clamp it with the help of a matching clamping member (3), and each clamping member (3) has at least a partial structure corresponding to the shape of the respective transition part (72), and the first processing part (71) and the second processing part (73) are respectively exposed on both sides of the clamping member (3) for processing.

2. The clamp according to claim 1, characterized in that: A second positioning station (22) and a third positioning station (23) are provided on both sides of the first positioning station (21) for respectively exposing the processing areas of the first processing part (71) and the second processing part (73); the bottom of the second positioning station (22) and / or the third positioning station (23) has an operation hole (24) for connecting it to the outside, and the bottom of the first processing part (71) and / or the second processing part (73) is exposed to the positioning groove (2) by means of the operation hole (24) for processing.

3. The clamp according to claim 2, characterized in that: The local structure of the clamping member (3) corresponds to the shape of the transition portion (72), and the remaining structure of the clamping member (3) corresponds to the first processing portion (71) and / or the second processing portion (73). The clamping member (3) is provided with an opening for processing the processing area of ​​the first processing portion (71) and / or the second processing portion (73). The clamping member (3) cooperates with the positioning groove (2) to clamp the workpiece (7) to be processed.

4. The clamp according to claim 2, characterized in that: The second positioning station (22) and the third positioning station (23) are respectively provided with limiting spaces for installing the first processing part (71) and the second processing part (73), and the second positioning station (22) and / or the third positioning station (23) are provided with adjustment parts (4) for adjusting the size of the limiting spaces.

5. The clamp according to claim 4, characterized in that: The adjusting member (4) comprises an adjusting portion (41) and a rotating shaft (42) arranged below the adjusting portion (41); the adjusting portion (41) has arc portions with different radial lengths in the circumferential direction, so that different limit positions can be corresponded at different rotation angles; when the rotating shaft (42) is actuated to rotate to a preset direction, the adjusting portion (41) can rotate to a corresponding limit position; correspondingly, a through hole (25) for the rotating shaft (42) to be screwed is provided in the second positioning station (22) and / or the third positioning station (23).

6. The clamp according to any one of claims 1 to 5, characterized in that: The operating platform (1) is provided with a plurality of positioning grooves (2), and each clamping member (3) corresponds to two adjacent positioning grooves (2), so that two adjacent workpieces (7) to be processed can be clamped simultaneously.

7. The clamp according to claim 6, characterized in that: The clamping member (3) clamps a workpiece (7) to be processed by means of a bolt (5); the bolt (5) is arranged between two adjacent positioning grooves (2); the clamping member (3) is provided with a through hole (31) for the bolt (5) to pass through; the operating platform (1) is provided with a mounting groove (11) corresponding to the through hole (31); the bolt (5) passes through the through hole (31) and the mounting groove (11) in sequence to enable the clamping member (3) to clamp two adjacent workpieces (7) to be processed.

8. The clamp according to claim 7, characterized in that: An elastic member (6) is sleeved on the bolt (5), and the elastic member (6) causes the clamping member (3) to have a tendency to move away from the positioning groove (2).

9. The clamp according to claim 8, characterized in that: The upper end of the elastic member (6) abuts against the lower surface of the clamping member (3), and the lower end of the elastic member (6) abuts against the bottom of the installation groove (11).

10. The clamp according to claim 1, characterized in that: At least two positioning pins (12) are provided on the operating platform (1), and positioning holes (32) matching the positioning pins (12) are respectively provided on the clamping member (3), and each positioning pin (12) passes through the corresponding positioning hole (32), so that each clamping member (3) is positioned on the operating platform (1).

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