CN114055361A

CN114055361A - Clamping mechanism for small space

Info

Publication number: CN114055361A
Application number: CN202111292092.1A
Authority: CN
Inventors: 彭军; 江玉保; 丁尔胜; 王本玉; 张欣
Original assignee: Wuhu Power Technology Research Co Ltd
Current assignee: Wuhu Power Technology Research Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-02-18

Abstract

The invention provides a clamping mechanism for a small space, which comprises an installation support, wherein the front side and the rear side in the middle of the installation support are provided with strip holes, a driving block is arranged between the strip holes in a sliding manner, the lower end of the installation support is connected with two clamping arms through a hinge shaft, the clamping arms are arranged in a scissor manner, the upper ends of the clamping arms are movably connected with the driving block through a connecting rod, the lower ends of the clamping arms are connected with positioning blocks, the front end and the rear end of the driving block extend out of the strip holes, the front end and the rear end of the driving block are both connected with installation rods, and the two ends of each installation rod are provided with pressing arms. It is downthehole to stretch into the part through setting up two clamp arms, and the clamp arm rotates along the hinge and makes the locating piece joint fix a position on the downthehole both sides side of part, and it is fixed to drive simultaneously and compress tightly the arm downward movement and suppress the part surface from the upside to fix a position the part fixedly, the effectual fixed effect in location that improves the part, simple structure, it is convenient to use.

Description

Clamping mechanism for small space

Technical Field

The invention relates to the technical field of automobile production and manufacturing equipment, in particular to a clamping mechanism for a small space.

Background

The device is used for fixing the processing object to make the processing object occupy the correct position in the mechanical manufacturing process so as to receive construction or detection. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. Such as welding jigs, inspection jigs, assembly jigs, machine tool jigs, and the like. Can touch a lot of part designs compactlyin anchor clamps use, the inner space is less, and the inside unable cylinder that uses of less space directly compresses tightly, need stretch into through setting up the clamp arm and press from both sides tightly.

Patent No. CN213136463U discloses a scissors formula clamping mechanism, it rotates along the hinge to compress tightly the subassembly through telescopic element drives, thereby make clamping assembly and lower clamping assembly press from both sides tightly the plane of part both sides from the top to the bottom, thereby accomplish the centre gripping to the part, but this structure makes the both sides plane to the part press from both sides tightly, can not effectually fix a position the part, the part is pressing from both sides tight fixed messenger and producing the deviation easily, thereby influence the subsequent processing of part, influence product quality, it just becomes very important to solve this problem.

Disclosure of Invention

The invention aims to provide a clamping mechanism for a small space, which is characterized in that two clamping arms are arranged to extend into a part hole, the clamping arms rotate along a hinge shaft to enable a positioning block to be clamped on two side edges in the part hole, and meanwhile, the pressing arms are driven to move downwards to press and fix the surface of a part from the upper side, so that the part is positioned and fixed, and the problem that the fixing mechanism cannot effectively position in the background technology is solved.

The invention provides a clamping mechanism for a small space, which comprises an installation support, wherein the front side and the rear side in the middle of the installation support are provided with strip holes, a driving block is arranged between the strip holes in a sliding manner, the lower end of the installation support is connected with two clamping arms through a hinge shaft, the clamping arms are arranged in a scissor manner, the upper ends of the clamping arms are movably connected with the driving block through a connecting rod, the lower ends of the clamping arms are connected with positioning blocks, the front end and the rear end of the driving block extend out of the strip holes, the front end and the rear end of the driving block are both connected with installation rods, and the two ends of each installation rod are provided with pressing arms.

The further improvement lies in that: the upper end of the mounting bracket is provided with a driving cylinder, the output end of the driving cylinder is connected with a driving block, and the driving block is driven to move in the strip hole through the driving cylinder.

The further improvement lies in that: the locating piece is the L type, is equipped with the draw-in groove on the locating piece, is equipped with rubber gasket in the draw-in groove.

The further improvement lies in that: the lower end of the pressing arm is a planar clamping surface, and a rubber gasket is arranged on the clamping surface.

The further improvement lies in that: the mounting rod is of a telescopic structure with adjustable length.

The further improvement lies in that: the clamping arm is detachably connected with the positioning block.

The invention has the beneficial effects that: through the arrangement of the scissor-type clamping arm, the clamping arm extends into the part hole and is unfolded towards two sides through the movement of the driving block, the positioning block is clamped into the part hole through the clamping groove along with the unfolding of the clamping arm, and clamping, positioning and fixing are carried out from the middle of the part, so that the part fixing position is determined, and the position deviation of part fixing is reduced; the driving block drives the mounting rod to move downwards while moving, so that the clamping surfaces at the lower ends of the pressing arms are attached to the planes on the two sides of the part hole, and the pressing arms are pressed and fixed from the upper side of the part; the upside pressing arm and the locating piece of downside press from both sides tight fixedly from the triangle-shaped structure to the improvement presss from both sides the fixed stability of fastening to the spare part.

The clamping arm is detachably connected with the positioning block, the positioning block is replaced according to the size of the part, and the positioning block is adaptive to the size of the part, so that the part can be positioned and fixed more closely, and the positioning and fixing effect is improved; the installation pole adopts extending structure to carry out length adjustment, compresses tightly the regulation that the arm compressed tightly the position according to the size of a dimension in part hole, and it is more convenient to use.

Drawings

Fig. 1 is a front view structural view of the present invention.

Fig. 2 is a side view structural view of the present invention.

Fig. 3 is a schematic view of the clamp arm construction.

Wherein: 1-mounting bracket, 2-strip hole, 3-driving block, 4-hinge shaft, 5-clamping arm, 6-connecting rod, 7-positioning block, 8-mounting rod, 9-pressing arm, 10-driving cylinder and 11-clamping groove.

Detailed Description

For the purpose of enhancing understanding of the present invention, the present invention will be further described in detail with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-3, the present embodiment provides a clamping mechanism for small space, which includes a mounting bracket 1, a long hole 2 is provided at the front and rear sides of the middle of the mounting bracket 1, a driving block 3 is slidably provided between the long holes 2, a driving cylinder 10 is provided at the upper end of the mounting bracket 1, the output end of the driving cylinder 10 is connected to the driving block 3, and the driving block 3 is driven by the driving cylinder 10 to move in the long hole 2.

The lower end of the mounting bracket 1 is connected with two clamping arms 5 through a hinge shaft 4, the clamping arms 5 are arranged in a scissor type manner, the upper ends of the clamping arms 5 are movably connected with the driving block 3 through a connecting rod 6, the connecting rod 6 is rotatably connected with the clamping arms 5 and the driving block 3 through bearings, and the connecting rod 6 drives the clamping arms 5 to rotate along the hinge shaft 4 along with the up-and-down movement of the driving block 3.

The lower extreme of clamp arm 5 is connected with locating piece 7, can dismantle the connection between clamp arm 5 and the locating piece 7, and locating piece 7 can carry out the size change according to the user demand, locating piece 7 is the L type, is equipped with draw-in groove 11 on the locating piece 7, is equipped with the rubber gasket in the draw-in groove 11, and locating piece 7 expandes along with clamp arm 5 rotates, and locating piece 7 passes through draw-in groove 11 joint in the downthehole both sides of part to fix a position the part fixedly.

Both ends stretch out rectangular hole 2 around the drive block 3, 3 front and back ends of drive block all are connected with installation pole 8, installation pole 8 is the adjustable extending structure of length, installation pole 8 carries out length adjustment according to the part size, 8 both ends of installation pole are equipped with and compress tightly arm 9, it is planar clamping face to compress tightly 9 lower extremes of arm, be equipped with the rubber gasket on the clamping face, drive block 3 when the downstream, drive installation pole 8 downstream, the clamping face laminating is on the part surface, the messenger compresses tightly the arm and compresses tightly the part, thereby it is fixed to make the part compress tightly.

When the part positioning device is used, the clamping arm 5 extends into a part hole of a part, the driving cylinder 10 drives the driving block 3 to move up and down in the strip hole 2, the driving block 3 moves to drive the clamping arm 5 to rotate along the hinge shaft 4 through the connecting rod 6, the clamping arm 5 is unfolded towards two sides in the part hole, and the positioning block 7 is clamped on two side edges in the part hole through the clamping groove 11, so that the part is positioned; the installation rod 8 moves downwards along with the movement of the driving block 3, the clamping surface at the lower end of the pressing arm 9 is in contact with the planes on two sides of the part and is tightly attached to the surface of the part, so that the pressing arm 9 presses and fixes the part from the upper side, and the fixing stability of the part is improved.

Claims

1. The utility model provides a clamping mechanism for little space, including installing support (1), the side is equipped with rectangular hole (2) around installing support (1) is middle, it is provided with drive block (3) to slide between rectangular hole (2), installing support (1) lower extreme is connected with two through hinge (4) and presss from both sides tight arm (5), it sets up to press from both sides tight arm (5) to be scissors formula, press from both sides between tight arm (5) upper end and drive block (3) through connecting rod (6) swing joint, a serial communication port, it is connected with locating piece (7) to press from both sides tight arm (5) lower extreme, rectangular hole (2) are stretched out at both ends around drive block (3), drive block (3) front and back end all is connected with installation pole (8), installation pole (8) both ends are equipped with and compress tightly arm (9).

2. A clamping mechanism for a small space as defined in claim 1, wherein: the upper end of the mounting bracket (1) is provided with a driving cylinder (10), the output end of the driving cylinder (10) is connected with a driving block (3), and the driving block (3) is driven to move in the strip hole (2) through the driving cylinder (10).

3. A clamping mechanism for a small space as defined in claim 1, wherein: the positioning block (7) is L-shaped, a clamping groove (11) is formed in the positioning block (7), and a rubber gasket is arranged in the clamping groove (11).

4. A clamping mechanism for a small space as defined in claim 1, wherein: the lower end of the pressing arm (9) is a planar clamping surface, and a rubber gasket is arranged on the clamping surface.

5. A clamping mechanism for a small space as defined in claim 1, wherein: the mounting rod (8) is of a telescopic structure with adjustable length.

6. A clamping mechanism for a small space as defined in claim 1, wherein: the clamping arm (5) and the positioning block (7) are detachably connected.