Clamp and indexing mechanism

Abstract

The utility model discloses a clamp and an indexing mechanism with the clamp, the clamp comprises a base, a clamping mechanism and a stop block, and the front end of the base is provided with a clamping hole; the clamping mechanism is installed in the base, the clamping mechanism is located behind the clamping hole, and the clamping mechanism is used for clamping a carbon brush; the clamping holes are formed in the base, the stopping blocks are connected with the base in a sliding mode, the stopping blocks are located above the clamping holes, and the stopping blocks can ascend and descend so as to open all the clamping holes or block part of the clamping holes. The position of the brush box can be effectively restrained through the clamping holes, the position of the carbon brush capable of moving in the brush box is restrained from the end away from the machining mechanism through the clamping mechanism, the position stability of the carbon brush and the brush box during online machining is guaranteed, and application of a multi-procedure automatic machining production line is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of carbon brush processing equipment technology, and in particular to a clamping indexing mechanism. Background Technology

[0002] Chinese patent application CN201810580200.7 discloses a carbon brush and a carbon brush holder assembly, including a carbon brush holder composed of symmetrically installed carbon brush holder bodies. The holder bodies are made of polyoxymethylene. A long groove is machined on the inner side of the holder body, and a deformation groove is machined on the outer side. The deformation groove is located below the long groove, and a guide surface is machined on the upper part of the long groove. The carbon brush is formed by a pressure spring connecting the brush body and a carbon brush connecting piece. The bottom of the brush body is curved, matching the outer circular shape of the commutator. The middle part of the carbon brush connecting piece is a narrow section, the size of which matches the long groove. The carbon brush connecting piece is fixedly connected to an external wiring device. The brush body, pressure spring, and carbon brush connecting piece are made of conductive metal. By inserting the carbon brush body into the carbon brush holder and pressing the carbon brush connecting piece, the carbon brush can be easily moved within the holder through the elastic deformation of the upper part of the carbon brush holder body. The installation is described in relation to a utility model patent with application number 202321629415.6, which discloses a carbon brush positioning mold, comprising: a base with a channel groove for the passage of a tube; a drive assembly disposed on the base; a stop assembly movably disposed on the base, the stop assembly including a positioning block and a first reset member, the positioning block having a positioning groove; the drive assembly for driving the positioning block to move and connecting the channel groove and the positioning groove, so that the tube enters the positioning groove; the first reset member for resetting the positioning block, so as to drive the tube to press against the groove wall of the channel groove; and a clamping assembly movably disposed on the base, the clamping assembly including a jaw and a second reset member; the jaw is located on the side of the channel groove opposite to the positioning groove, the drive assembly for driving the jaw to open to allow the tube to pass through; and the second reset member for resetting the jaw, so as to clamp the copper wire of the tube. The purpose of this fixture is to improve the efficiency of online processing. However, the fixture cannot effectively hold carbon brushes with brush holders. The reason for this is that the fixture cannot fix the position of the brush holder and the carbon brush separately. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a clamp that can effectively hold the brush box and the carbon brushes installed in the brush box, facilitating processing.

[0004] This utility model also proposes an indexing mechanism having the above-mentioned clamp.

[0005] The clamp according to a first aspect embodiment of the present invention includes:

[0006] The base has a clamping hole at the front end;

[0007] A clamping mechanism is installed in the base, the clamping mechanism is located behind the clamping hole, and the clamping mechanism is used to clamp the carbon brush;

[0008] A stop block is slidably connected to the base. The stop block is located above the clamping hole and can be raised and lowered to open all of the clamping holes or block part of the clamping holes.

[0009] The fixture according to the present invention has at least the following beneficial effects: the clamping hole can effectively constrain the position of the brush box, and the clamping mechanism can constrain the position of the carbon brush that can move in the brush box from the end away from the processing mechanism, so as to ensure the positional stability of the carbon brush and the brush box during online processing, which is convenient for the application of multi-process automatic processing production line.

[0010] According to some embodiments of the present invention, the base is provided with a first clamping part and a second clamping part. The first clamping part is fixedly connected to the base, and the second clamping part is slidably connected to the base to move closer to or further away from the first clamping part. The first clamping part is provided with a first clamping groove, and the second clamping part is provided with a second clamping groove. The first clamping groove cooperates with the second clamping groove to form the clamping hole.

[0011] According to some embodiments of the present invention, the base is provided with a slide rail, and the second clamping part is slidably connected to the slide rail.

[0012] According to some embodiments of the present invention, the base is fixedly connected to a driving mechanism, the driving mechanism including a cylinder and a roller, the roller being pivotally mounted on the second clamping part, the driving end of the cylinder being extendable and abutting against the roller, the driving end of the cylinder being located between the center of the roller and the outermost part near the first clamping part.

[0013] According to some embodiments of the present invention, the second clamping part is connected to a support plate, the support plate is partially located behind the clamping hole and partially disposed in the clamping hole, and the clamping mechanism is located above the support plate.

[0014] According to some embodiments of the present invention, the clamping mechanism includes:

[0015] Pneumatic fingers are fixedly connected to the base;

[0016] The gripper has two grippers, which are respectively fixed to the two drive ends of the pneumatic finger. The pneumatic finger drives the two grippers to move away from each other or closer to each other, and there is a gripping gap between the two grippers.

[0017] According to some embodiments of the present invention, a positioning groove is provided at one end of the stop block facing the clamping hole, and the positioning groove can be embedded in the carbon brush.

[0018] According to some embodiments of the present invention, the stop block is fixedly connected to a lifting block, the lifting block includes a fixedly connected vertical plate and a horizontal plate, the vertical plate and the base are slidably connected, and the stop block is fixedly connected to the edge of the horizontal plate.

[0019] According to some embodiments of the present invention, a first return spring is provided between the lifting block and the bottom of the base, and the first return spring drives the lifting block to descend.

[0020] The indexing mechanism according to a second aspect of the present invention includes a turntable and a clamp according to a first aspect of the present invention. The turntable is pivotable about an axis and around the center of the turntable. A plurality of clamps are provided at equal intervals along the edge of the turntable.

[0021] The indexing mechanism according to the embodiment of the present utility model has at least the following beneficial effects: the clamping hole can effectively constrain the position of the brush box, and the clamping mechanism can constrain the position of the carbon brush that can move in the brush box from the end away from the processing mechanism, so as to ensure the positional stability of the carbon brush and the brush box during online processing, which is convenient for the application of multi-process automatic processing production line.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is a schematic diagram of one direction of the clamp according to an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the clamp from another direction according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the clamp in another direction according to an embodiment of the present utility model;

[0027] Figure 4 This is a schematic diagram of the turntable according to an embodiment of the present utility model.

[0028] 10. Fixtures;

[0029] 100, base; 110, clamping hole; 120, first clamping part; 121, first clamping groove; 130, second clamping part; 131, second clamping groove; 140, slide rail; 150, support plate;

[0030] 200 Clamping mechanism; 210 Pneumatic finger; 220 Gripper; 221 Clamping gap;

[0031] 300. Stop block; 310. Positioning groove; 320. Lifting block; 321. Vertical plate; 322. Horizontal plate; 323. First return spring;

[0032] 20. Turntable; 21. Workstation; Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the 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 utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0035] In the description of this utility model, "several" means one or more, "multiple" 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. If "first" or "second" is used in the description, it is only for the purpose of 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.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "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 utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 4The indexing mechanism of this utility model embodiment includes a turntable 20 and clamps 10. The turntable 20 is pivotable around an axis, and multiple clamps 10 are equidistantly arranged around the center of the turntable 20 and along its edge. In actual use, the rotation of the turntable 20 allows carbon brushes at different processing stages in the clamps 10 to reach the vicinity of the processing mechanism of the next process, facilitating control and assembly line production. (Referring to...) Figures 1 to 3 The fixture 10 includes a base 100, a clamping mechanism 200, and a stop block 300. The base 100 has a clamping hole 110 at its front end. The clamping mechanism 200 is installed in the base 100 and is located behind the clamping hole 110. The clamping mechanism 200 is used to clamp the carbon brush. The stop block 300 is slidably connected to the base 100 and is located above the clamping hole 110. The stop block 300 can be raised and lowered to open all the clamping holes 110 or block part of the clamping holes 110.

[0038] During the brush box loading stage, the brush box is fixed in the clamping hole 110 under the clamping of the mechanism. During the carbon brush loading stage, the carbon brushes are directly inserted into the brush box under the clamping of the mechanism. In the subsequent carbon brush straightening process, a stop block 300 is used to prevent the brush box from falling out of the clamping hole 110. Furthermore, during the spring installation process, the stop block 300 can be raised to allow space for the spring to be inserted. During the closing process after welding, the stop block 300 can be raised to allow the brush box to... The brush holder can completely and tightly seal the end. Furthermore, in the above-mentioned process of straightening the carbon brush, the clamping mechanism 200 in the fixture 10 can clamp the end of the longer carbon brush that is away from the copper wire to prevent the carbon brush from slipping. When the spring is installed, the spring pushes the carbon brush to move to the rear end of the fixture 10. At this time, the clamping mechanism 200 needs to make room for the carbon brush to move. After the spring is inserted into the brush holder, the clamping mechanism 200 is used to re-clamp the carbon brush.

[0039] In summary, the clamping hole 110 can effectively constrain the position of the brush box, and the clamping mechanism 200 is used to constrain the position of the carbon brush from the end away from the processing mechanism, ensuring the positional stability of the carbon brush and brush box during online processing, which is convenient for the application of multi-process automatic processing production lines.

[0040] In some embodiments, to avoid interference with the carbon brush when the stop block 300 blocks the clamping hole 110, a positioning groove 310 is provided at one end of the stop block 300 facing the clamping hole 110. The positioning groove 310 can be embedded in the carbon brush.

[0041] The clamping hole 110 is used to clamp the brush box. Therefore, the size of the clamping hole 110 should be the same as the size of the brush box to clamp the brush box. To avoid interference between the brush box and the clamping hole 110 when the brush box is inserted, in some embodiments, the base 100 is provided with a first clamping part 120 and a second clamping part 130. The first clamping part 120 is fixedly connected to the base 100, and the second clamping part 130 is slidably connected to the base 100 to move closer to or further away from the first clamping part 120. The first clamping part 120 is provided with a first clamping groove 121, and the second clamping part 130 is provided with a second clamping groove 131. The first clamping groove 121 cooperates with the second clamping groove 131 to form the clamping hole 110. In the actual process, by sliding the second clamping part 130 (along...) Figure 3 (Arrow A1) enlarges the clamping hole 110, then inserts the brush box into the enlarged clamping hole 110, and finally resets the second clamping part 130 (along the arrow A1). Figure 3 Arrow A2) is used to engage the second clamping part 130 with the first clamping part 120 to clamp the brush box. Preferably, the base 100 is provided with a slide rail 140, and the second clamping part 130 and the slide rail 140 are slidably connected. Preferably, in order to achieve automatic reset of the second clamping part 130, a second reset spring (not shown in the figure) is provided between the second clamping part 130 and the base 100.

[0042] As a further improvement to the above solution, a drive mechanism is fixedly connected to the base 100. The drive mechanism includes a cylinder and a roller. The roller is pivotally mounted on the second clamping part 130. The drive end of the cylinder can extend and abut against the roller. The drive end of the cylinder is located between the center of the roller and the outermost part near the first clamping part 120. When the drive end of the cylinder extends and abuts against the surface of the roller, the rotatable roller can slide along the drive end of the cylinder and drive the second clamping part 130 away from the first clamping part 120, thereby enlarging the clamping hole 110. When the drive end of the cylinder returns to its original position, the second clamping part 130 will return to its original position under the action of the second return spring and cooperate with the first clamping part 120 to clamp the brush box located in the clamping hole 110.

[0043] Furthermore, the second clamping part 130 is connected to a support plate 150, part of which is located behind the clamping hole 110 and part of which is disposed in the clamping hole 110. The clamping mechanism 200 is located above the support plate 150. The support plate 150 can be used to support the brush box and carbon brush.

[0044] In some embodiments, the clamping mechanism 200 includes a pneumatic finger 210 and grippers 220. The pneumatic finger 210 is fixedly connected to the base 100. Two grippers 220 are provided, each fixed to one of the two drive ends of the pneumatic finger 210. The pneumatic finger 210 drives the two grippers 220 to move away from or towards each other, with a clamping gap 221 between them. By driving the grippers 220 to separate and move closer together, the clamping gap 221 is widened or narrowed to release space for the carbon brush to move or to clamp the carbon brush.

[0045] In some embodiments, the stop block 300 is fixedly connected to a lifting block 320. The lifting block 320 includes a vertical plate 321 and a horizontal plate 322 fixedly connected. The vertical plate 321 is slidably connected to the base 100, and the stop block 300 is fixedly connected to the edge of the horizontal plate 322. The lifting block 320 slides up and down on one side of the base 100 to achieve the up and down movement of the stop block 300. In some specific processes, it is necessary to use a lifting mechanism to drive the lifting block 320. In order to facilitate the quick reset of the stop block 300 and avoid affecting the next process, in some embodiments, a first reset spring 323 is provided between the lifting block 320 and the bottom of the base 100. The first reset spring 323 drives the lifting block 320 to descend.

[0046] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 the present utility model.

Claims

1. A clamp, characterized in that, include: The base (100) has a clamping hole (110) at its front end; A clamping mechanism (200) is installed in the base (100), the clamping mechanism (200) is located behind the clamping hole (110), and the clamping mechanism (200) is used to clamp the carbon brush; A stop block (300) is slidably connected to the base (100). The stop block (300) is located above the clamping hole (110). The stop block (300) can be raised and lowered to open all of the clamping holes (110) or block part of the clamping holes (110).

2. The clamp according to claim 1, characterized in that, The base (100) is provided with a first clamping part (120) and a second clamping part (130). The first clamping part (120) and the base (100) are fixedly connected. The second clamping part (130) and the base (100) are slidably connected to each other to be close to or away from the first clamping part (120). The first clamping part (120) is provided with a first clamping groove (121). The second clamping part (130) is provided with a second clamping groove (131). The first clamping groove (121) cooperates with the second clamping groove (131) to form the clamping hole (110).

3. The clamp according to claim 2, characterized in that, The base (100) is provided with a slide rail (140), and the second clamping part (130) and the slide rail (140) are slidably connected.

4. The clamp according to claim 3, characterized in that, The base (100) is fixedly connected to a drive mechanism, which includes a cylinder and a roller. The roller is pivotally mounted on the second clamping part (130). The drive end of the cylinder is extendable and abuts against the roller. The drive end of the cylinder is located between the center of the roller and the outermost part near the first clamping part (120).

5. The clamp according to claim 2, characterized in that, The second clamping part (130) is connected to a support plate (150), the support plate (150) is partially located behind the clamping hole (110) and partially disposed in the clamping hole (110), and the clamping mechanism (200) is located above the support plate (150).

6. The clamp according to claim 1 or 5, characterized in that, The clamping mechanism (200) includes: A pneumatic finger (210) is fixedly connected to the base (100); There are two grippers (220), which are respectively fixed to the two driving ends of the pneumatic finger (210). The pneumatic finger (210) drives the two grippers (220) to move away from each other or closer to each other, and there is a gripping gap (221) between the two grippers (220).

7. The clamp according to claim 1, characterized in that, The stop block (300) has a positioning groove (310) at one end facing the clamping hole (110), and the positioning groove (310) can be embedded with a carbon brush.

8. The clamp according to claim 1, characterized in that, The stop block (300) is fixedly connected to a lifting block (320). The lifting block (320) includes a vertical plate (321) and a horizontal plate (322) fixedly connected. The vertical plate (321) is slidably connected to the base (100). The stop block (300) is fixedly connected to the edge of the horizontal plate (322).

9. The clamp according to claim 8, characterized in that, A first return spring (323) is provided between the bottom of the lifting block (320) and the base (100), and the first return spring (323) drives the lifting block (320) to descend.

10. An indexing mechanism, characterized in that, Includes a turntable (20) and a clamp as described in any one of claims 1 to 9, wherein the turntable (20) is pivotable about an axis and a plurality of clamps are provided at equal intervals around the center of the turntable (20).

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