CN217096664U - A positioning and clamping device for machining - Google Patents

Abstract

The utility model discloses a positioning and clamping device for machining, which comprises a base, a cavity opened in the base, and a turntable arranged on the base. The lower surface of the rotating shaft is fixedly connected, a gear is fixedly sleeved on the rotating shaft, a driving mechanism for driving the rotation of the gear is arranged in the cavity, two cylinders are fixedly connected to the turntable, and the ends of the cylinders are fixedly connected with A moving plate, a sliding block is fixedly connected to the bottom of the moving plate, a chute for sliding the sliding block is provided on the turntable, and a clamping mechanism is detachably connected to the moving plate. Through the cooperation of the above structures, the utility model realizes that the clamped workpiece can be rotated horizontally, which is convenient for comprehensive processing of the workpiece, and at the same time, the clamping plates of different shapes can be simply and quickly replaced, which is convenient for clamping the workpieces of different shapes. fixed, which improves the adaptability of the clamping device.

Description

A positioning and clamping device for machining

technical field

The utility model relates to the technical field of machining, in particular to a positioning and clamping device for machining.

Background technique

Machining refers to the process of changing the size or performance of the workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. The fixture is used to fix the processing object in the process of mechanical manufacturing, so that it can be Occupy the correct position so that the operator can carry out the corresponding machining operation on the workpiece.

Since the existing clamping device is not easy to horizontally rotate the clamped and fixed workpiece, the operator needs to constantly change his position to process the workpiece during the machining process, which reduces the machining efficiency, and therefore needs to be improved.

Utility model content

The purpose of the present utility model is to provide a positioning and clamping device for machining, which has the workpiece that can be rotated horizontally, which is convenient for comprehensive processing of the workpiece, and at the same time, it can simply and quickly replace the clamping plates of different shapes, which is convenient for different The workpiece of the shape is clamped and fixed, which improves the adaptability of the clamping device and solves the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a positioning and clamping device for machining, comprising a base, a cavity opened in the base, and a turntable arranged on the base, wherein the cavity is rotatably connected with a A rotating shaft, and the top end of the rotating shaft is fixedly connected with the lower surface of the turntable, a gear is fixedly sleeved on the rotating shaft, and a driving mechanism for driving the rotation of the gear is arranged in the cavity.

Two cylinders are fixedly connected to the turntable, a moving plate is fixedly connected to the end of the cylinder, a slider is fixedly connected to the bottom of the moving plate, and a chute for the slider to slide is opened on the turntable, so The moving plate is detachably connected with a clamping mechanism.

Preferably, the drive mechanism includes a moving toothed plate meshed with a gear, a lead screw is rotatably connected to the base, a screw barrel is threadedly connected to the lead screw, and the screw barrel is fixedly connected to the moving toothed plate, and the A driver for driving the screw to rotate is fixedly connected to the base.

Preferably, the driving machine is an integral structure in which a forward and reverse rotation motor and a reducer are installed.

Preferably, the bottom of the moving tooth plate is fixedly connected with the limit block, and the inner wall of the cavity is provided with a limit groove for the limit block to slide.

Preferably, the clamping mechanism includes a through hole opened on the moving plate, a bolt is inserted into the through hole, a splint is fixedly connected to the end of the bolt, and two locking plates are threadedly connected to the bolt. nut.

Preferably, two guide wheels are fixedly connected to the turntable, and the base is provided with a guide groove for the guide wheels to slide.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

1. Through the setting of the rotating shaft, the gear and the driving mechanism, the starting driver can drive the lead screw to rotate, and under the action of the threaded cylinder, the tooth plate can be pushed to move, and then the gear and the rotating shaft can be driven to rotate, that is, the workpiece can be rotated horizontally. It is convenient for comprehensive machining of the workpiece.

2. The arrangement of the splint, the bolt and the locking nut makes it possible to easily and quickly replace the splint of different shapes, which provides convenience for clamping workpieces of different shapes.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the front sectional view of the utility model;

3 is a partial cross-sectional view of the drive mechanism of the present invention.

In the figure: 1. base; 2. turntable; 3. shaft; 4. gear; 5. cylinder; 6. moving plate; 7. chute; 8. moving tooth plate; 9. lead screw; 10. threaded barrel; 11 , driver; 12, limit block; 13, bolt; 14, splint; 15, lock nut; 16, guide wheel.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1 to 3 , the present invention provides a technical solution: a positioning and clamping device for machining, comprising a base 1 , a cavity opened in the base 1 , and a turntable 2 arranged on the base 1 , A rotating shaft 3 is rotatably connected in the cavity, and the top end of the rotating shaft 3 is fixedly connected with the lower surface of the turntable 2 .

The turntable 2 is fixedly connected with two cylinders 5, the end of the cylinder 5 is fixedly connected with a moving plate 6, and the bottom of the moving plate 6 is fixedly connected with a slider, the turntable 2 is provided with a chute 7 for the slider to slide, and the moving plate 6 A clamping mechanism is detachably connected, and the cylinder 5 pushes the moving plate 6 to move, so that the workpiece can be clamped and fixed under the action of the clamping mechanism. Smooth and smooth.

The driving mechanism includes a moving toothed plate 8 meshed with the gear 4 , a lead screw 9 is rotatably connected to the base 1 , a threaded barrel 10 is threadedly connected to the lead screw 9 , the threaded barrel 10 is fixedly connected with the moving toothed plate 8 , and the base 1 is fixedly connected There is a driver 11 for driving the lead screw 9 to rotate, and the driver 11 is connected with an external power supply device through a connecting wire.

When it is necessary to change the horizontal position of the workpiece after clamping and fixing, by starting the driver 11, the output end of the driver 11 drives the lead screw 9 to rotate. The rotation of the drum 10 is restricted, so that the moving tooth plate 8 can be pushed to move, thereby driving the gear 4 and the rotating shaft 3 to rotate, that is, the workpiece can be rotated horizontally, which is convenient for comprehensive processing of the workpiece.

The driver 11 is an integrated structure of the forward and reverse motor and the reducer. The forward and reverse motor is also called the forward and reverse rotation of the motor, which means that the motor rotates clockwise and counterclockwise. The clockwise rotation is the reverse rotation of the motor, the forward and reverse control circuit diagram and its principle analysis To realize the forward and reverse rotation of the motor, as long as any two phase-adjusted wirings connected to the three-phase power supply of the motor can achieve the purpose of reverse rotation. The reversing motor is a well-known device in the prior art, and through the setting of the reducer, it is avoided that the rotational speed is too high when starting up.

The bottom of the moving tooth plate 8 is fixedly connected with the limit block 12, and the inner wall of the cavity is provided with a limit groove for the limit block 12 to slide, and the limit groove and the limit block 12 limit the displacement of the moving tooth plate 8, so that The moving tooth plate 8 moves more smoothly and smoothly.

The clamping mechanism includes a through hole opened on the moving plate 6 , a bolt 13 is inserted into the through hole, the end of the bolt 13 is fixedly connected with a clamping plate 14 , and two locking nuts 15 are threadedly connected to the bolt 13 .

When it is necessary to replace the splint 14 of different shapes, by unscrewing the outermost two locking nuts 15 to release the fixing of the bolts, the splint 14 of different shapes can be replaced simply and quickly, and the clamping plate 14 of different shapes can be clamped. convenient.

Two guide wheels 16 are fixedly connected to the turntable 2, and the base 1 is provided with a guide groove for the guide wheels 16 to slide.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A positioning and clamping device for machining, comprising a base (1), a cavity opened in the base (1), and a turntable (2) arranged on the base (1), characterized in that: the hollow A rotating shaft (3) is rotatably connected in the cavity, and the top end of the rotating shaft (3) is fixedly connected with the lower surface of the turntable (2). The rotating shaft (3) is fixedly sleeved with a gear (4), and the cavity is provided with There is a driving mechanism for the rotation of the driving gear (4); Two cylinders (5) are fixedly connected to the turntable (2), a moving plate (6) is fixedly connected to the end of the cylinder (5), and a slider is fixedly connected to the bottom of the moving plate (6), The turntable (2) is provided with a chute (7) for the sliding block to slide, and the moving plate (6) is detachably connected with a clamping mechanism. 2 . The positioning and clamping device for machining according to claim 1 , wherein the driving mechanism comprises a moving tooth plate ( 8 ) meshing with the gear ( 4 ), and the base ( 1 ) rotates on the base ( 1 ). 3 . A lead screw (9) is connected, the lead screw (9) is threadedly connected with a threaded barrel (10), the threaded barrel (10) is fixedly connected with the moving tooth plate (8), and the base (1) is fixed on A driver (11) for driving the lead screw (9) to rotate is connected. 3 . The positioning and clamping device for machining according to claim 2 , wherein the driving machine ( 11 ) is an integral structure installed with a forward and reverse rotation motor and a reducer. 4 . 4 . The positioning and clamping device for machining according to claim 2 , wherein the bottom of the moving tooth plate ( 8 ) is fixedly connected to the limiting block ( 12 ), and the inner wall of the cavity is provided with a A limit slot for the limit block (12) to slide. 5 . The positioning and clamping device for machining according to claim 1 , wherein the clamping mechanism comprises a through hole opened on the moving plate ( 6 ), and a bolt is inserted into the through hole. 6 . (13), a clamp plate (14) is fixedly connected to the end of the bolt (13), and two locking nuts (15) are threadedly connected to the bolt (13). 6 . The positioning and clamping device for machining according to claim 1 , wherein two guide wheels ( 16 ) are fixedly connected to the turntable ( 2 ), and the base ( 1 ) is provided with The guide groove for the guide wheel (16) to slide.

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