Annular clamp

Abstract

The utility model discloses an annular clamp which comprises a base, the base is provided with a containing cavity used for containing workpieces, the inner wall of the containing cavity is connected with at least three supporting pieces making contact with the workpieces, a limiting assembly is arranged between every two adjacent supporting pieces so that the supporting pieces can keep making contact with the workpieces, and each supporting piece comprises a supporting rod. One end of the supporting rod is provided with a first rotating shaft, the first rotating shaft is rotatably connected with the base, the other end of the supporting rod is provided with a contact piece, the limiting assembly comprises a first connecting piece and a second connecting piece which are arranged on the supporting rod, and the first connecting piece is slidably connected with the second connecting piece on the other supporting piece so as to adjust the distance between the adjacent supporting pieces. Stable supporting of the workpiece can be guaranteed by clamping the workpiece through the multiple supporting pieces, the supporting pieces abut against the side face of the workpiece, and machining of the end face of the workpiece cannot be affected.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, and more specifically, to an annular clamp. Background Art

[0002] During the workpiece processing, the stability of the workpiece clamping is very important. When drilling and other processing are performed on the end face of a circular workpiece, the existing fixture is difficult to clamp stably because the side of the workpiece is curved and the surface is relatively smooth. If the end face is added, it will affect the processing of the end face. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a clamp capable of stably clamping a round kilogram.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A ring clamp comprises a base, the base is provided with a accommodating cavity for accommodating a workpiece, the inner wall of the accommodating cavity is connected to at least three support members in contact with the workpiece, a limiting assembly is arranged between adjacent support members to keep the support members in contact with the workpiece, the support member comprises a support rod, one end of the support rod is provided with a first rotating shaft, the first rotating shaft is rotatably connected to the base, the other end of the support rod is provided with a contact member, the limiting assembly comprises a first connecting member and a second connecting member disposed on the support rod, the first connecting member is slidably connected to a second connecting machine on another support member to adjust the distance between adjacent support members.

[0006] Furthermore, the support rod is provided with a connecting hole, the first connecting member includes a first connecting rod, a first end of the first connecting rod is provided with a second rotating shaft, and the second rotating shaft is embedded in the connecting hole so that the first connecting member is rotatably connected to the support rod.

[0007] Furthermore, the second connecting member includes a second connecting rod, one end of which is provided with a positioning hole, and the first connecting rod is provided with a third rotating shaft matched with the positioning hole so that the second connecting rod is rotatably connected to the first connecting rod.

[0008] Furthermore, the first connecting rod is provided with a first guide groove, and the other end of the second connecting rod is provided with a first guide block embedded in the first guide groove and capable of moving along the first guide groove.

[0009] Furthermore, the second connecting rod is provided with a second guide groove, and the other end of the first connecting rod is provided with a second guide block embedded in the second guide groove and capable of moving along the second guide groove.

[0010] Furthermore, the height of the second guide block is smaller than the depth of the second guide groove, the second guide block is provided with a mounting hole facing the second guide groove, and a fastener is provided in the mounting hole to make the first connecting rod and the second connecting rod fit together and limit the movement of the second guide block.

[0011] Furthermore, the support rod is arc-shaped, and the first connecting member and the second connecting member extend toward one side of the arc-shaped protruding surface.

[0012] Furthermore, the contact member comprises a contact rod fixed to the support rod, and the contact rod sleeve is provided with an elastic sleeve.

[0013] The beneficial effects of the utility model are:

[0014] 1. The clamping of the workpiece by multiple support members can ensure stable support of the workpiece, and the support members are all in contact with the side surfaces of the workpiece, which will not affect the processing of the end surface of the workpiece.

[0015] 2. Through the sliding cooperation between the first connecting member and the second connecting member, the distance between adjacent supporting members can be adjusted, so that the clamp can adapt to workpieces of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of this embodiment;

[0017] Figure 2 Schematic diagram of the structure of the support member in this embodiment;

[0018] Figure 3 is a schematic structural diagram of the first connecting member in this embodiment;

[0019] Figure 4 is a schematic structural diagram of the second connecting member in this embodiment;

[0020] Figure 5 is a schematic structural diagram of the first connecting member and the second connecting member when connected in this embodiment;

[0021] Figure markings: base 100, workpiece 101, accommodating cavity 110, support member 200, support rod 210, connecting hole 211, first rotating shaft 220, contact member 230, first connecting member 300, first connecting rod 310, first guide groove 311, second rotating shaft 320, third rotating shaft 321, second guide block 330, mounting hole 331, second connecting member 400, second connecting rod 410, second guide groove 411, positioning hole 420, first guide block 430; fastener 500. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5 A ring clamp includes a base 100, a circular accommodating cavity 110 is provided on the base 100, and three support members 200 are provided in the accommodating cavity 110. The support member 200 includes an arc-shaped support rod 210, one end of which is provided with a first rotating shaft 220, and a rotating seat is provided on the base 100. The first rotating shaft 220 is installed on the rotating seat so that the support rod 210 can rotate in the accommodating cavity 110. A contact member 230 is provided at the other end of the support rod 210, and the contact member 230 includes a contact rod fixed on the support rod 210, and an elastic sleeve is provided on the contact rod. The contact rod can be used as a skeleton to clamp the workpiece 101, and the elastic sleeve is made of rubber material to increase the friction between the contact rod and the workpiece 101 to prevent slipping.

[0024] A limit assembly is provided between two adjacent support members 200, and the limit assembly includes a first connecting member 300 and a second connecting member 400 installed on the support rod 210. The first connecting member 300 includes a first connecting rod 310, a connecting hole 211 is provided on the support rod 210, a second rotating shaft 320 is provided at one end of the first connecting rod 310, and the second rotating shaft 320 is inserted into the connecting hole 211 so that the first connecting member 300 and the support rod 210 can rotate relative to each other. The second connecting member 400 includes a second connecting rod 410, a positioning hole 420 is provided at one end of the second connecting rod 410, and a third rotating shaft 321 is provided at the top of the second rotating shaft 320. When the third rotating shaft 321 is inserted into the positioning hole 420, the first connecting member 300 and the second connecting member 400 can rotate relative to each other.

[0025] The first connecting rod 310 is provided with a first guide groove 311 extending along the length direction of the first connecting rod 310, and the second connecting rod 410 is provided with a second guide groove 411 extending along the length direction of the second connecting rod 410. The first connecting member 300 and the second connecting member 400 on the adjacent support rods 210 are movably connected. Specifically, the other end of the second connecting rod 410 is provided with a first guide block 430, which is embedded in the first guide groove 311 and can move along the first guide groove 311. The other end of the first connecting rod 310 is provided with a second guide block 330, which is embedded in the second guide groove 411, so that the first connecting member 400 and the second connecting member 400 can slide against each other, so that the distance between adjacent support members 200 can be adjusted to adapt to workpieces 101 of different sizes.

[0026] The height of the second guide block 330 is less than the depth of the second guide groove 411. The second guide block 330 is provided with a mounting hole 331 whose opening faces the second guide groove 411. When the second guide block 330 is inserted into the second guide groove 411, the first connecting rod 310 and the second connecting rod 410 are fitted. Threads are provided in the mounting hole 331. The fastener 500 is inserted into the mounting hole 331 from the side where the second guide groove 411 is located and is threadedly matched with the mounting hole 331. By tightening the fastener 500, the pressure between the first connecting rod 310 and the second connecting rod 410 can be increased, thereby increasing the friction between the first connecting rod 310 and the other connecting rods to limit the relative sliding between the first connecting rod 310 and the second connecting rod 410. The support rod 210 can be tightened by sliding between the first connecting member 300 and the second connecting member 400, thereby ensuring the pressure between the contact member 230 and the workpiece 101 and preventing the contact member 230 and the workpiece 101 from slipping. At the same time, the fastener 500 can keep the contact member 230 in contact with the workpiece 101, thereby ensuring the stability of the support for the workpiece 101.

[0027] The support rod 210 is an arc-shaped structure, which makes the support rod 210 elastic, and the first connecting member 300 and the second connecting member 400 extend toward one side of the arc-shaped protruding surface; the support rod 210 can be slightly deformed by pulling the limiting component, thereby further ensuring the stability of the support for the workpiece 101.

[0028] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A ring clamp, characterized in that: The invention comprises a base (100), wherein the base (100) is provided with a receiving cavity (110) for receiving a workpiece (101), the inner wall of the receiving cavity (110) is connected with at least three supporting members (200) in contact with the workpiece (101), and a limiting assembly is provided between adjacent supporting members (200) so that the supporting members (200) can maintain contact with the workpiece (101), and the supporting member (200) comprises a supporting rod (210), and one end of the supporting rod (210) is provided with a first A rotating shaft (220), the first rotating shaft (220) is rotatably connected to the base (100), a contact member (230) is provided at the other end of the support rod (210), the limiting assembly comprises a first connecting member (300) and a second connecting member (400) disposed on the support rod (210), the first connecting member (300) is slidably connected to the second connecting member (400) on another support member (200) to adjust the distance between adjacent support members (200).

2. A ring clamp according to claim 1, characterized in that: The support rod (210) is provided with a connecting hole (211), the first connecting member (300) comprises a first connecting rod (310), a first end of the first connecting rod (310) is provided with a second rotating shaft (320), and the second rotating shaft (320) is embedded in the connecting hole (211) so that the first connecting member (300) and the support rod (210) are rotatably connected.

3. A ring clamp according to claim 2, characterized in that: The second connecting member (400) comprises a second connecting rod (410), one end of which is provided with a positioning hole (420), and the first connecting rod (310) is provided with a third rotating shaft (321) cooperating with the positioning hole (420) so that the second connecting rod (410) is rotatably connected to the first connecting rod (310).

4. A ring clamp according to claim 3, characterized in that: The first connecting rod (310) is provided with a first guide groove (311), and the other end of the second connecting rod (410) is provided with a first guide block (430) embedded in the first guide groove (311) and capable of moving along the first guide groove (311).

5. The ring clamp according to claim 3, characterized in that: The second connecting rod (410) is provided with a second guide groove (411), and the other end of the first connecting rod (310) is provided with a second guide block (330) embedded in the second guide groove (411) and capable of moving along the second guide groove (411).

6. The ring clamp according to claim 5, characterized in that: The height of the second guide block (330) is smaller than the depth of the second guide groove (411), and the second guide block (330) is provided with a mounting hole (331) facing the second guide groove (411), and a fastener (500) is provided in the mounting hole (331) to make the first connecting rod (310) and the second connecting rod (410) fit together and limit the movement of the second guide block (330).

7. The ring clamp according to claim 1, characterized in that: The support rod (210) is arc-shaped, and the first connecting member (300) and the second connecting member (400) extend toward one side of the arc-shaped protruding surface.

8. The ring clamp according to claim 1, characterized in that: The contact member (230) comprises a contact rod fixed to the support rod (210), and the contact rod sleeve is provided with an elastic sleeve.

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