Multi-workpiece clamp

Abstract

The multi-workpiece clamp comprises a supporting platform, a supporting plate, a frame and a wrapping assembly, two sets of side plates are fixedly connected to the supporting platform, the supporting plate is located between the two sets of side plates, the supporting plate is used for containing workpieces, a through groove is formed in the middle of the supporting plate, the frame is arranged on the supporting platform, and the supporting plate is in threaded connection with a movable rod. The movable rod extends downwards to be rotationally connected with a pressing plate, a guide rod is arranged on the pressing plate and vertically extends to be arranged on the frame in a penetrating mode, the coating assembly comprises two sets of coating belts arranged on the lower side of the pressing plate and two sets of electric cylinder bodies installed at the bottom of the supporting plate, each set of coating belts is connected with a pull rope, and the two pull ropes penetrate through the through grooves to be connected with the movable ends of the corresponding set of electric cylinder bodies respectively. The movable rod is rotated to drive the pressing plate to abut against the top of the workpiece, the movable end of the electric cylinder body stretches out to pull the pull rope, the crawler belt deforms to be matched with the outer sides of the workpieces in different shapes to wrap the outer sides of the workpieces in different shapes, the clamping effect on the top and the side of the workpiece is achieved, the clamping device can be matched with various workpieces, use is easy and convenient, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping, in particular to a multi-workpiece clamp. Background Art

[0002] The workpiece is drilled, milled, etc. according to the processing needs. Special fixtures are usually used to fix it before targeted processing operations. The auxiliary positioning of special fixtures plays an important role in improving the processing accuracy of the workpiece.

[0003] However, the dedicated clamp limits the clamping of different workpieces, resulting in a narrow range of use. At the same time, when clamping the workpiece, it is also necessary to disassemble, assemble and replace the workpiece according to the corresponding clamp, which seriously affects the processing efficiency of the workpiece. Therefore, the utility model proposes a multi-workpiece clamp that can solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-workpiece clamp to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a multi-workpiece fixture, comprising:

[0006] A supporting platform, on which two sets of side plates are fixedly connected;

[0007] A support plate is located between the two sets of side plates, the support plate is used to place workpieces, and a through groove is provided in the middle of the support plate;

[0008] A frame is arranged on the support plate, and the frame is screwed with a movable rod, the movable rod extends downward and is rotatably connected to a pressing plate, the pressing plate is provided with a guide rod, and the guide rod extends vertically and penetrates the frame;

[0009] The covering assembly includes two groups of covering belts arranged on the lower side of the pressure plate and two groups of electric cylinder bodies installed at the bottom of the support plate. Each group of the covering belts is connected to a pull rope, and the two pull ropes pass through the through slots and are connected to the movable ends of a group of electric cylinder bodies.

[0010] As a preferred technical solution, a plurality of contact protrusions are arranged on the inner side of each group of the cover belts, and the contact protrusions are made of rubber material.

[0011] As a preferred technical solution, pulleys for the pull rope to pass around are respectively provided on the inner walls on both sides of the through groove.

[0012] As a preferred technical solution, the support plate is slidably connected to the support platform.

[0013] As a preferred technical solution, each group of the side panels is provided with a plurality of slots, and two groups of cross bars are slidably connected to the support plate. The cross bars correspond to the side panels one by one in transverse direction and can be plugged into one of the slots.

[0014] As a preferred technical solution, each group of the cross bars is connected to a movable end of a group of electric cylinder bodies.

[0015] As a preferred technical solution, at least one group of springs is provided on each group of the cover belts, and the springs are connected to the frame.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The workpiece is placed on the support plate, and the movable rod is rotated to drive the pressure plate to press against the top of the workpiece. The movable end of the electric cylinder body extends out to pull the pull rope. The two sets of pull ropes are pulled and drive the covering belt to cover the two sides of the workpiece. The covering belt is deformed and adapts to the outer side of workpieces of different shapes. Thereby, the top and side of the workpiece are clamped, and it can adapt to a variety of workpieces. It is simple and convenient to use, which improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection relationship between the pressing plate and the frame of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the covering component of the utility model;

[0021] Figure 4 This is a schematic diagram of the pull rope passing around the pulley of the utility model;

[0022] In the figure: 10, support platform; 11, side plate; 12, slot; 13, through slot; 14, cross bar; 15, pulley; 20, support plate; 30, frame; 31, movable rod; 32, pressure plate; 33, guide rod; 40, covering assembly; 41, covering belt; 42, electric cylinder body; 43, pull rope; 44, spring. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4, providing a multi-workpiece clamp to solve the problem that the current special clamp has a narrow application range and needs to be disassembled and replaced according to the corresponding clamp when clamping the workpiece, which seriously affects the processing efficiency of the workpiece. The specific embodiments are as follows:

[0025] Embodiment 1

[0026] Two groups of side plates 11 are fixedly connected to the supporting platform 10 . A support plate 20 is located between the two groups of side plates 11 . The support plate 20 is used to place workpieces. A through groove 13 is formed in the middle of the support plate 20 .

[0027] The workpiece is placed on the support plate 20 during processing, and the two sets of side plates 11 are provided to prevent the workpiece from falling from the support platform 10 .

[0028] The frame 30 is disposed on the support plate 20 , and a movable rod 31 is screwed to the frame 30 . The movable rod 31 extends downward and is rotatably connected to a pressing plate 32 . A guide rod 33 is disposed on the pressing plate 32 . The guide rod 33 extends vertically and penetrates the frame 30 .

[0029] By rotating the movable rod 31 downward, the pressing plate 32 can be driven to abut against the top of the workpiece, that is, the top of the workpiece is abutted and fixed.

[0030] The covering assembly 40 includes two groups of covering belts 41 arranged on the lower side of the pressure plate 32 and two groups of electric cylinder bodies 42 installed on the bottom of the support plate 20. Each group of covering belts 41 is connected to a pull rope 43. The two pull ropes 43 pass through the through grooves 13 and are connected to the movable ends of a group of electric cylinder bodies 42 respectively. A plurality of contact protrusions are arranged on the inner side of each group of covering belts 41. The contact protrusions are made of rubber material. The inner walls on both sides of the through grooves 13 are respectively provided with pulleys 15 for the pull ropes 43 to pass around.

[0031] The covering belt 41 is preferably made of a flexible material such as textile, and a pulling rope 43 is extended from the movable end of the electric cylinder body 42. The two sets of pulling ropes 43 are pulled to drive the covering belt 41 to cover both sides of the workpiece and contact the workpiece through multiple contact protrusions on the covering belt 41.

[0032] Embodiment 2

[0033] The support plate 20 is slidably connected to the support platform 10 , and each set of side plates 11 is provided with a plurality of slots 12 . Two sets of cross bars 14 are slidably connected to the support plate 20 . The cross bars 14 correspond laterally to the side plates 11 one by one and can be plugged into one of the slots 12 .

[0034] The position of the workpiece can be adjusted by sliding the pallet 20 on the support platform 10 to facilitate processing operations, and after the adjustment is completed, the cross bar 14 is inserted into a cross groove on the corresponding side plate 11 to fix the position of the pallet 20.

[0035] Each set of cross bars 14 is connected to the movable end of a set of electric cylinder bodies 42. When the electric cylinder body 42 moves by pulling the pull rope 43, it can drive the cross bars 14 to be plugged into the slots 12. Therefore, there is no need to manually move the cross bars 14, which further improves the convenience of operation.

[0036] At least one set of springs 44 is disposed on each set of cover tapes 41. The springs 44 are connected to the frame 30 so that when the cover tapes 41 are not covering the workpiece, the springs 44 pull the cover tapes 41 away from the workpiece and do not affect the placement of the workpiece.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-workpiece fixture, characterized in that: include: A supporting platform (10) on which two sets of side plates (11) are fixedly connected; A support plate (20) is located between the two sets of side plates (11), the support plate (20) is used to place workpieces, and a through groove (13) is provided in the middle of the support plate (20); A frame (30) is arranged on the support plate (20), and a movable rod (31) is screwed on the frame (30), and the movable rod (31) extends downward and is rotatably connected to a pressure plate (32), and a guide rod (33) is arranged on the pressure plate (32), and the guide rod (33) extends vertically and penetrates the frame (30); The covering assembly (40) comprises two groups of covering belts (41) arranged on the lower side of the pressing plate (32) and two groups of electric cylinder bodies (42) installed on the bottom of the supporting plate (20), each group of the covering belts (41) is connected to a pull rope (43), and the two pull ropes (43) respectively pass through the through groove (13) and are connected to the movable end of a group of electric cylinder bodies (42).

2. A multi-workpiece fixture according to claim 1, characterized in that: A plurality of contact protrusions are arranged on the inner side of each group of the covering belts (41), and the contact protrusions are made of rubber material.

3. A multi-workpiece fixture according to claim 1, characterized in that: Pulleys (15) for the pull rope (43) to pass around are respectively provided on the inner walls on both sides of the through groove (13).

4. The multi-workpiece fixture according to claim 1, characterized in that: The support plate (20) is slidably connected to the support platform (10).

5. A multi-workpiece fixture according to claim 4, characterized in that: Each group of the side plates (11) is provided with a plurality of slots (12), and two groups of cross bars (14) are slidably connected to the support plate (20). The cross bars (14) correspond to the side plates (11) one by one in transverse direction and can be plugged into one of the slots (12).

6. A multi-workpiece fixture according to claim 5, characterized in that: Each group of cross bars (14) is connected to the movable end of a group of electric cylinder bodies (42).

7. The multi-workpiece fixture according to claim 1, characterized in that: At least one group of springs (44) is arranged on each group of the covering belts (41), and the springs (44) are connected to the frame (30).

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