Clamp with positioning function

Abstract

The clamp with the positioning function comprises a lower clamp body, an upper clamp body and a locking assembly, a rotating shaft is arranged at the first end of the lower clamp body, a first positioning part is arranged at the second end of the lower clamp body, a lower half hole is formed in the middle of the lower clamp body, and the first end of the upper clamp body is rotationally connected to the rotating shaft; a first positioning part is arranged at the first end of the upper clamp, a second positioning part is arranged at the second end of the upper clamp, an upper half hole is formed in the middle of the upper clamp, the locking assembly is arranged on the lower clamp and used for locking the lower clamp and the upper clamp, and when the upper clamp covers the lower clamp, the first positioning part and the second positioning part are matched to achieve positioning. And the upper half hole and the lower half hole form a clamping hole. According to the upper clamp and the lower clamp, through cooperation of the first positioning part and the second positioning part, the upper clamp and the lower clamp can be kept aligned, dislocation of the upper clamp and the lower clamp is avoided, and the workpiece clamping effect is guaranteed.

Description

Technical Field

[0001] This application relates to the field of clamping technology, and in particular to a clamping device with positioning function. Background Technology

[0002] On various workbenches, fixtures are frequently used components that can clamp, support, and fix the workpiece to be operated.

[0003] A clamping fixture typically consists of two half-clamps. One end of each half-clamp is rotatably connected, and the other end is connected by a locking component. When the locking component is released, the two half-clamps can be opened to pick up and put down the workpiece. When the locking component is locked, the two half-clamps are combined and locked by the locking component to clamp the workpiece.

[0004] However, after a period of use, the pivot of this type of fixture is prone to wear or loosening, which can lead to misalignment when the two halves of the fixture are joined together, resulting in poor alignment and reduced clamping effect on the workpiece. Therefore, this application proposes a fixture with a positioning function. Utility Model Content

[0005] This application provides a fixture with a positioning function. The upper fixture and the lower fixture can be aligned by the cooperation of the first positioning part and the second positioning part, so as to avoid misalignment and ensure the clamping effect of the workpiece.

[0006] To solve the above-mentioned technical problems, this application adopts the following technical solution:

[0007] A positioning fixture includes a lower fixture, an upper fixture, and a locking assembly. The lower fixture has a rotating shaft at its first end and a first positioning part at its second end. The lower fixture has a lower half-hole in its middle. The upper fixture has a first end rotatably connected to the rotating shaft and a second positioning part at its second end. The upper fixture has an upper half-hole in its middle. The locking assembly is disposed on the lower fixture and is used to lock the lower fixture and the upper fixture. When the upper fixture is closed onto the lower fixture, the first positioning part and the second positioning part cooperate to achieve positioning. The upper half-hole and the lower half-hole form a clamping hole.

[0008] When in use, loosen the locking assembly, open the upper clamp, place the workpiece to be clamped into the lower clamp, then close the upper clamp onto the lower clamp. The second positioning part and the first positioning part on the upper clamp will cooperate, and the upper clamp and the lower clamp will remain aligned. Then, tighten the locking assembly to lock the upper clamp and the lower clamp.

[0009] Compared to existing technologies, this positioning fixture's upper and lower clamps, through the cooperation of the first and second positioning parts, can keep the upper and lower clamps aligned, preventing misalignment and ensuring the workpiece clamping effect.

[0010] In one embodiment of this application, the first positioning part is a positioning protrusion, and the second positioning part is a positioning groove; or

[0011] The first positioning part is a positioning groove, and the second positioning part is a positioning protrusion.

[0012] In one embodiment of this application, the first positioning part is a positioning shaft, and the second positioning part is a positioning hole.

[0013] In one embodiment of this application, the locking assembly includes a threaded cylinder and a threaded shaft. The front side of the lower clamp and the front side of the upper clamp are both provided with mounting grooves. The threaded cylinder is rotatably connected to the mounting groove of the lower clamp. The threaded shaft cooperates with the threaded cylinder. The upper end of the threaded shaft is provided with a pressure block, and the pressure block is provided with a handle.

[0014] When the pressure block is above the upper clamp, rotate the handle to drive the threaded shaft to rotate until the pressure block abuts against the upper clamp to achieve locking.

[0015] In one embodiment of this application, the lower clamp is provided with a first mounting hole, the distance between the center of the first mounting hole and the edge of the lower half hole is less than the radius of the first mounting hole, and the bottom of the first mounting hole is provided with a threaded hole;

[0016] The lower half-hole is provided with a lower half-piece, and the edge of the lower half-piece is provided with a second mounting hole. The second mounting hole is aligned with the first mounting hole to form a mounting hole. A washer is provided in the first mounting hole. The bolt passes through the washer and engages with the threaded hole. The washer abuts against the bottom of the first mounting hole and the second mounting hole.

[0017] In one embodiment of this application, the size of the washer is the same as the size of the bottom of the first mounting hole.

[0018] In one embodiment of this application, the upper clamp is provided with a handle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a fixture with positioning function provided in an embodiment of this application, with the upper fixture covering the lower fixture;

[0021] Figure 2 This is a three-dimensional structural diagram of a clamp with positioning function provided in an embodiment of this application, wherein the upper clamp and the lower clamp are separate;

[0022] Figure 3 A three-dimensional structural diagram of the lower clamp used in a positioning fixture provided in an embodiment of this application;

[0023] Figure 4 A three-dimensional structural diagram of the upper clamp used in a positioning fixture provided in an embodiment of this application;

[0024] Figure 5 This is an exploded view of the lower clamp and lower half-piece installed in a positioning fixture provided in an embodiment of this application.

[0025] Figure label:

[0026] 100. Lower clamp; 110. First positioning part; 120. Lower half hole; 130. Mounting groove; 140. First mounting hole; 150. Threaded hole; 160. Washer; 170. Bolt; 200. Upper clamp; 210. Second positioning part; 220. Upper half hole; 230. Handle; 300. Locking assembly; 310. Threaded cylinder; 320. Threaded shaft; 330. Pressure block; 340. Handle; 400. Lower half block; 410. Second mounting hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship 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.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Figure 1 This is a three-dimensional structural diagram of a fixture with positioning function provided in an embodiment of this application, wherein the upper fixture covers the lower fixture. Figure 2 This is a three-dimensional structural diagram of a positioning fixture provided in an embodiment of this application, wherein the upper fixture and the lower fixture are separated. Figure 3 This is a three-dimensional structural diagram of the lower clamp used in a positioning fixture provided in an embodiment of this application. Figure 4 This is a three-dimensional structural diagram of the upper clamp used in a positioning fixture provided in an embodiment of this application. Figure 5 This is an exploded view of the lower clamp and lower half-piece installed in a positioning fixture provided in an embodiment of this application.

[0032] Embodiments of this application provide a clamp with positioning function, such as Figure 1 and Figure 2 As shown, it includes a lower clamp 100, an upper clamp 200, and a locking assembly 300. The lower clamp 100 and the upper clamp 200 are components for clamping the workpiece, and the locking assembly 300 is a component for locking the upper clamp 200 and the lower clamp 100.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, the lower clamp 100 has a rotating shaft at its first end, a first positioning part 110 at its second end, and a lower half hole 120 at its middle part. The upper clamp 200 has its first end rotatably connected to the rotating shaft, so that the upper clamp 200 can rotate relative to the lower clamp 100 to achieve opening and closing.

[0034] The upper clamp 200 has a second positioning part 210 at its second end and an upper half-hole 220 in its middle. When the upper clamp 200 is closed onto the lower clamp 100, the first positioning part 110 and the second positioning part 210 cooperate to position the upper clamp 200 and the lower clamp 100, keeping their positions fixed. The upper half-hole 220 and the lower half-hole 120 form a clamping hole to clamp the workpiece.

[0035] The locking assembly 300 is disposed on the lower clamp 100 and is used to lock the lower clamp 100 and the upper clamp 200, thereby clamping the workpiece securely.

[0036] In use, loosen the locking assembly 300, open the upper clamp 200, place the workpiece to be clamped into the lower clamp 100, then close the upper clamp 200 onto the lower clamp 100. The second positioning part 210 and the first positioning part 110 on the upper clamp 200 cooperate, keeping the upper clamp 200 and the lower clamp 100 aligned. Then, lock the locking assembly 300 to lock the upper clamp 200 and the lower clamp 100.

[0037] Compared with the prior art, the upper clamp 200 and lower clamp 100 of the positioning fixture can be kept aligned by the cooperation of the first positioning part 110 and the second positioning part 210, so as to avoid misalignment and ensure the clamping effect of the workpiece.

[0038] In some embodiments, the first positioning part 110 is a positioning protrusion, and the second positioning part 210 is a positioning groove. The positioning protrusion and the positioning groove are inserted and engaged to achieve positioning. Of course, the first positioning part 110 can also be a positioning groove, and the second positioning part 210 can be a positioning protrusion accordingly, which can also achieve the positioning function.

[0039] In some embodiments, such as Figure 3 and Figure 4 As shown, the first positioning part 110 is a positioning shaft, and the second positioning part 210 is a positioning hole, achieving positioning through shaft-hole insertion. Alternatively, in implementation, the first positioning part 110 can also be a hemispherical protrusion.

[0040] In some embodiments, such as Figure 2 As shown, the locking assembly 300 includes a threaded cylinder 310 and a threaded shaft 320. The front side of the lower clamp 100 and the front side of the upper clamp 200 are both provided with mounting grooves 130. The threaded cylinder 310 is rotatably connected to the mounting groove 130 of the lower clamp 100. The threaded shaft 320 cooperates with the threaded cylinder 310. The threaded cylinder 310 and the threaded shaft 320 as a whole can rotate into the mounting groove 130 or rotate out of the mounting groove 130.

[0041] The upper end of the threaded shaft 320 is provided with a pressure block 330, and the pressure block 330 is provided with a handle 340. When the pressure block 330 is above the upper clamp 200, the threaded cylinder 310 and the threaded shaft 320 are both located in the mounting groove 130. Rotate the handle 340 to drive the threaded shaft 320 to rotate until the pressure block 330 abuts against the upper clamp 200, thereby locking the upper clamp 200 and the lower clamp 100.

[0042] In some embodiments, such as Figure 3 As shown, the lower clamp 100 is provided with a first mounting hole 140. The distance between the center of the first mounting hole 140 and the edge of the lower half hole 120 is less than the radius of the first mounting hole 140. That is to say, the first mounting hole 140 is not a complete circular hole, but partially communicates with the lower half hole 120. The bottom of the first mounting hole 140 is provided with a threaded hole 150, which can be used to install bolts.

[0043] like Figure 5 As shown, a lower half block 400 is provided inside the lower half hole 120, and a second mounting hole 410 is provided on the edge of the lower half block 400. The second mounting hole 410 is aligned with the first mounting hole 140 to form a mounting hole. That is to say, the second mounting hole 410 (which can also be understood as a groove) is not a complete circular hole, but is connected with the first mounting hole 140 to form a circular mounting hole.

[0044] like Figure 5 As shown, a washer 160 is provided in the first mounting hole 140. The bolt 170 passes through the washer 160 and mates with the threaded hole 150. When the lower half 400 is installed into the lower half hole 120, the second mounting hole 410 is aligned with the first mounting hole 140 to form a mounting hole. Then, the bolt 170 is tightened, so that the washer 160 abuts against the bottom of the first mounting hole 140 and the second mounting hole 410, thereby achieving the installation and fixation of the lower half 400. Generally, the number of first mounting holes 140 can be set to two.

[0045] Similarly, the upper clamp 200 is also provided with holes corresponding to the first mounting hole 140 and an upper half corresponding to the lower half 400, and the installation method is the same as that of the first mounting hole 140 and the lower half 400, so as to achieve workpiece clamping. Both the lower half 400 and the upper half are provided with clamping holes, and the sizes can be designed in various ways. In this way, when clamping workpieces of different sizes, only the lower half 400 and the upper half need to be replaced, which improves the versatility of the entire clamp.

[0046] In some embodiments, such as Figure 5As shown, the size of washer 160 is consistent with the size of the bottom of the first mounting hole 140. That is to say, washer 160 is not a circular washer, but is formed by cutting off a portion of the inferior arc of a circular washer 160. In this way, when washer 160 is completely aligned with the bottom of the first mounting hole 140, the lower half 400 can be directly inserted into the lower half hole 120. Then, washer 160 is rotated 180 degrees, and bolt 170 is tightened to firmly press washer 160 against the bottom of the first mounting hole 140 and the bottom of the second mounting hole 410, thereby fixing the lower half 400.

[0047] In some embodiments, such as Figure 2 and Figure 4 As shown, the upper clamp 200 is provided with a handle 230, which allows the user to easily open or close the upper clamp 200 for convenient use.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A clamp with positioning function, characterized in that, include: The lower clamp has a rotating shaft at its first end, a first positioning part at its second end, and a lower half hole at its middle part. The upper clamp has a first end rotatably connected to the rotating shaft, a second end of the upper clamp having a second positioning part, and an upper half hole in the middle of the upper clamp. A locking assembly is disposed on the lower clamp and is used to lock the lower clamp and the upper clamp; When the upper clamp is placed on the lower clamp, the first positioning part and the second positioning part cooperate to achieve positioning, and the upper half hole and the lower half hole form a clamping hole.

2. The fixture with positioning function according to claim 1, characterized in that, The first positioning part is a positioning protrusion, and the second positioning part is a positioning groove; or The first positioning part is a positioning groove, and the second positioning part is a positioning protrusion.

3. The fixture with positioning function according to claim 2, characterized in that, The first positioning part is a positioning shaft, and the second positioning part is a positioning hole.

4. The fixture with positioning function according to claim 1, characterized in that, The locking assembly includes a threaded cylinder and a threaded shaft. The front side of the lower clamp and the front side of the upper clamp are both provided with mounting grooves. The threaded cylinder is rotatably connected to the mounting groove of the lower clamp. The threaded shaft cooperates with the threaded cylinder. The upper end of the threaded shaft is provided with a pressure block, and the pressure block is provided with a handle. When the pressure block is above the upper clamp, rotate the handle to drive the threaded shaft to rotate until the pressure block abuts against the upper clamp to achieve locking.

5. The fixture with positioning function according to any one of claims 1 to 4, characterized in that, The lower clamp is provided with a first mounting hole, the distance between the center of the first mounting hole and the edge of the lower half hole is less than the radius of the first mounting hole, and the bottom of the first mounting hole is provided with a threaded hole. The lower half-hole is provided with a lower half-piece, and the edge of the lower half-piece is provided with a second mounting hole. The second mounting hole is aligned with the first mounting hole to form a mounting hole. A washer is provided in the first mounting hole. The bolt passes through the washer and engages with the threaded hole. The washer abuts against the bottom of the first mounting hole and the second mounting hole.

6. The fixture with positioning function according to claim 5, characterized in that, The size of the washer is the same as the size of the bottom of the first mounting hole.

7. The fixture with positioning function according to any one of claims 1 to 4, characterized in that, The upper clamp is equipped with a handle.

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