CN207326462U - A kind of positioning clamping device of gear pump driving shaft - Google Patents

Abstract

The utility model discloses a kind of positioning clamping device of gear pump driving shaft, the positioning clamping device includes clamp base and clamping device, clamp base is rectangle steel plate, clamp base upper surface is provided with clamping device, clamping device has the first clamping device and the second clamping device, first clamping device and the second clamping device are located in clamp base side by side, V-groove block is installed in the clamp base immediately below the first clamping device split shed pressing plate, V-shaped groove locating piece is installed in the clamp base immediately below the second pressing device.The utility model makes full use of the architectural feature of workpiece to be processed in itself, and setting and the corresponding V-arrangement block of workpiece to be processed on clamp body, registration, clamping is solid and reliable, simple to operate, shortens the lay day of part, improves processing efficiency.

Description

Positioning and clamping device for gear pump driving shaft

technical field

The utility model belongs to the technical field of mechanical processing, in particular to a positioning and clamping device for a gear pump driving shaft.

Background technique

In mechanical processing, in order to ensure the processing size, shape and mutual position requirements of the workpiece, a reasonable fixture must be used. The fixture has two functions, namely positioning and clamping. The process of determining the correct position of the workpiece on the machine tool or in the fixture is called positioning; the operation of fixing the workpiece after positioning so that it remains in the same position during processing is called clamping.

As a kind of process equipment, the fixture occupies an important position. As far as its function is concerned, the use of fixtures to install workpieces is easy to ensure machining accuracy, stabilize product quality, shorten auxiliary time, improve production efficiency, and reduce labor intensity of workers. In addition, the use of machine tool fixtures can also expand the scope of use of machine tools .

Contents of the invention

According to the deficiencies of the prior art above, the technical problem to be solved by the utility model is to propose a positioning and clamping device for the driving shaft, by setting a V-shaped groove stopper and a V-shaped groove corresponding to the workpiece to be processed on the fixture base. Positioning block and pressing device, the pressing driving shaft is positioned accurately, and the clamping is firm and reliable.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a positioning and clamping device for the driving shaft, the positioning and clamping device includes a clamp base and a clamping device, the clamp base is a rectangular steel plate, and the upper surface of the clamp base A clamping device is installed. The clamping device has a first clamping device and a second clamping device. The first clamping device and the second clamping device are arranged side by side on the clamp base. In the first clamping device, the opening pressure plate is A V-shaped groove block is installed on the clamp base below, and a V-shaped groove positioning block is installed on the clamp base directly below the second pressing device.

As a preferred embodiment: wherein the clamping device includes a rotating seat, an opening pressure plate, a rotating shaft, a locking screw and a locking nut, the rotating seat includes a front rotating seat and a rear rotating seat, and the front rotating seat is located on one side of the clamp base. The rear rotating seat is located on the other side of the fixture base at the corresponding position, and an opening pressing plate is provided between the front rotating seat and the rear rotating seat. One end of the opening pressing plate is provided with a rotating ring, and the other end of the opening pressing plate is provided with a fork One end of the opening pressure plate with the rotating ring is inserted into the rotating shaft, and the rotating shaft is rotatably connected to the rear rotating seat. A through hole is drilled at one end of the tightening screw, and a rotating shaft is installed in the through hole of the locking screw. The rotating shaft on the locking screw is rotatably connected to the front rotating seat. A locking nut is screwed on the locking threaded rod, and the locking nut is pressed tightly on the fork head of the buckle pressing plate. A gasket is also provided between the lock nut and the yoke head. The V-groove block is a cuboid tool steel, the upper surface of the V-groove block is provided with a V-shaped groove, one end of the V-shaped groove is connected to the side of the V-shaped groove block, and is pressed toward the second Device, the other end of the V-groove is equipped with a block for positioning, and two through holes for fastening and positioning are drilled symmetrically on both sides of the V-groove on the upper surface of the V-groove block, and bolts are installed in the through holes. The V-groove block is fixed on the upper surface of the fixture base by means of bolt connection. The V-shaped groove positioning block is a cuboid tool steel, and the upper surface of the V-shaped groove positioning block is provided with a V-shaped groove. The V-shaped grooves on the upper surface are collinear, and two through holes for fastening and positioning are drilled symmetrically on both sides of the V-shaped groove on the upper surface of the V-shaped groove positioning block. Bolts are installed in the through holes, and the V-shaped groove positioning blocks are connected by bolts. fixed on the upper surface of the fixture base. Both ends of the fixture base are provided with U-shaped grooves, and the U-shaped grooves connect the upper and lower surfaces of the fixture base through. The clamp base is cut along the position between the first clamping device and the second clamping device, and a telescopic rod is installed at the fracture. A horizontal measuring tube is also installed on the fixture base.

The beneficial effects of the utility model are: the positioning and clamping device of the utility model has a simple structure and is easy to manufacture, and the parts can be clamped on the fixture only by tightening the compression nut, the loading and unloading and adjustment of the parts are simple and fast, and the operation is convenient. The loading and unloading time of parts is shortened, and the processing efficiency is improved.

Description of drawings

The following is a brief description of the content expressed in the drawings of this specification and the marks in the drawings:

Fig. 1 is a perspective view of the positioning and clamping device of the drive shaft according to the specific embodiment of the present invention;

Fig. 2 is a front view of the positioning and clamping device of the drive shaft according to the specific embodiment of the present invention;

Fig. 3 is a left view of the positioning and clamping device of the drive shaft according to the specific embodiment of the present invention;

Fig. 4 is a top view of the positioning and clamping device of the driving shaft according to the specific embodiment of the present invention.

Among them, 1. Fixture base, 2. V-shaped groove block, 3. Opening pressure plate, 4. Drive shaft, 5. V-shaped groove positioning block, 6. Bolt, 7. Washer, 8. Lock nut, 9. Lock Tight screw rod, 10, rotating shaft, 11, front rotating seat, 12, rear rotating seat.

Detailed ways

Below, referring to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model, such as the shape and structure of each component involved, the mutual position and connection relationship between each part, the function and working principle of each part, and manufacturing The process, operation and use methods, etc. are further described in detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concept and technical solutions of the present utility model.

As shown in Figure 1-4, the positioning and clamping device includes a clamp base 1 and a clamping device. The clamp base 1 is a rectangular steel plate. The upper surface of the clamp base 1 is equipped with a clamping device. The clamping device includes a rotating seat and an opening pressure plate 3. , rotating shaft 10, lock screw rod 9 and lock nut 8, the rotating seat includes a front rotating seat 11 and a rear rotating seat 12, the front rotating seat 11 is located on one side of the fixture base 1, and the rear rotating seat 12 is located at the corresponding position of the fixture base On the other side of 1, an opening pressing plate 3 is provided between the front rotating seat 11 and the rear rotating seat 12, one end of the opening pressing plate 3 is provided with a rotating ring, the other end of the opening pressing plate 3 is provided with a fork head, and the opening pressing plate 3 One end with the rotating ring is inserted into the rotating shaft 10, and the rotating shaft 10 is rotatably connected to the rear rotating seat 12, and the end of the opening pressure plate 3 with the fork head is placed on the front rotating seat 11, and the front rotating seat 11 is rotatably connected with a locking screw 9. A through hole is drilled at one end of the locking screw 9, and a rotating shaft 10 is installed in the through hole of the locking screw 9. The rotating shaft 10 on the locking screw 9 is rotatably connected to the front rotating seat 11, and can go back and forth along the rotating shaft 10. Swing, turn the lock screw 9, clamp the lock screw 9 between the fork heads of the buckle pressure plate, screw the lock nut 8 on the lock thread rod, turn the lock nut 8 to make the lock nut 8 tightly pressed Fastening is realized on the fork head of the buckle pressure plate, and a gasket is also provided between the lock nut 8 and the fork head. The clamping device has a first clamping device and a second clamping device, the first clamping device and the second clamping device are arranged side by side on the clamp base 1, and the clamp base directly below the opening pressure plate 3 in the first clamping device 1 is installed with a V-shaped groove stopper, and the V-shaped groove stopper 2 is a piece of cuboid tool steel. There is a V-shaped groove on the upper surface of the V-shaped groove stopper, and one end of the V-shaped groove is connected to the V-shaped groove stopper 2, and facing the second pressing device, the other end of the V-shaped groove is installed with a stopper for positioning, and two holes for fastening and positioning are drilled symmetrically on both sides of the V-shaped groove on the upper surface of the V-shaped groove block. Through holes, bolts 6 are installed in the through holes, and the V-shaped groove stoppers are fixed on the upper surface of the fixture base 1 by means of bolt connections. A V-shaped groove positioning block 5 is installed on the clamp base 1 directly below the second pressing device, and the V-shaped groove positioning block 5 is also a rectangular parallelepiped tool steel, and a V-shaped groove is formed on the upper surface of the V-shaped groove positioning block. Type groove, the two sides of the connected V-shaped groove positioning block 5 of the V-shaped groove, and collinear with the V-shaped groove on the V-shaped groove stopper 2, drill symmetrically on both sides of the V-shaped groove on the upper surface of the V-shaped groove positioning block There are two through holes for fastening and positioning, and bolts 6 are installed in the through holes, and the V-shaped groove positioning block is fixed on the upper surface of the fixture base 1 by bolt connection.

Optimized, there are grooves at both ends of the fixture base 1, U-shaped grooves are provided at both ends of the fixture base 1, and the U-shaped groove connects the upper and lower surfaces of the fixture base 1 through, and is used to connect the fixture to the rack.

Optimally, in order to adapt to the clamping of different lengths of the drive shaft 4, the clamp base 1 is cut along the position between the first clamping device and the second clamping device, and a telescopic rod is installed at the cut to stretch or shorten The telescopic rod can adjust the distance between the first clamping device and the second clamping device, thereby clamping the drive shaft 4 of different lengths.

Optimally, a horizontal measuring tube is also installed on the fixture base 1 to ensure the level of the base of the clamping device when the clamping device is installed, to ensure the clamping accuracy, thereby improving the machining accuracy.

Working principle: fix the fixture base 1 on the workbench of the machine tool, and determine the distance between the two pressing devices according to the size of the processed parts. Then loosen the first clamping device and the second clamping device respectively, lift the opening pressure plate 3 respectively, put the driving shaft 4 in the V-shaped groove of the V-shaped groove stopper 2 and the V-shaped groove positioning block 5, the driving shaft 4 One end is against the block on the V-shaped groove block 2, put down the opening pressure plate 3, press the opening pressure plate 3 on the driving shaft 4, respectively turn the locking screw 9 to the fork head of the opening pressure plate 3, and tighten the lock Tighten the nut 8 to finally realize the fastening and positioning of the driving shaft 4.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited by the above-mentioned methods, as long as various insubstantial improvements are made by adopting the method concept and technical solutions of the utility model, or Directly applying the ideas and technical solutions of the utility model to other occasions without improvement is within the protection scope of the utility model. The protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (6)

1. A positioning and clamping device for a drive shaft, characterized in that the positioning and clamping device comprises a clamp base (1) and a clamping device, the clamp base (1) is a rectangular steel plate, and the upper surface of the clamp base (1) A clamping device is installed, the clamping device has a first clamping device and a second clamping device, the first clamping device and the second clamping device are arranged side by side on the clamp base (1), in the first clamping device A V-shaped groove block is installed on the clamp base (1) directly below the opening pressing plate (3), and a V-shaped groove positioning block (5) is installed on the clamp base (1) directly below the second pressing device. The device includes a rotating seat, an opening pressing plate (3), a rotating shaft (10), a locking screw (9) and a locking nut (8), the rotating seat includes a front rotating seat (11) and a rear rotating seat (12), and the front rotating The seat (11) is located on one side of the fixture base (1), and the rear rotating seat (12) is located on the other side of the corresponding position of the fixture base (1), between the front rotating seat (11) and the rear rotating seat (12) An opening pressing plate (3) is provided, one end of the opening pressing plate (3) is provided with a rotating ring, the other end of the opening pressing plate (3) is provided with a fork head, and one end of the opening pressing plate (3) having the rotating ring is inserted into the rotating shaft (10 ), the rotating shaft (10) is rotatably connected to the rear rotatable seat (12), and the end of the opening press plate (3) with the fork head is placed on the front rotatable seat (11), and the front rotatable seat (11) is rotatably connected with a lock Tightening screw rod (9), one end of locking screw rod (9) is drilled with a through hole, and rotating shaft (10) is installed in the through hole of locking screw rod (9), and the rotating shaft (10) on the locking screw rod (9) is rotationally connected On the front swivel seat (11), the lock screw rod (9) is stuck between the fork heads of the buckle pressure plate, and a lock nut (8) is screwed on the lock threaded rod, and the lock nut (8) is tightly pressed On the yoke head of the buckle pressure plate, a gasket is also arranged between the lock nut (8) and the yoke head. 2. The positioning and clamping device of the driving shaft according to claim 1, wherein the V-shaped groove block (2) is a cuboid tool steel, and a V-shaped groove is formed on the upper surface of the V-shaped groove block. V-shaped groove, one end of the V-shaped groove communicates with the side of the V-shaped groove block (2), and faces the second pressing device, the other end of the V-shaped groove is equipped with a stopper for positioning, on the V-shaped groove block The two sides of the V-shaped groove on the surface are symmetrically drilled with two through holes for fastening and positioning. Bolts (6) are installed in the through holes, and the V-shaped groove stopper is fixed on the upper surface of the fixture base (1) by bolt connection. . 3. The positioning and clamping device of the driving shaft according to claim 1, wherein the V-shaped groove positioning block (5) is a cuboid tool steel, and a V-shaped groove is formed on the upper surface of the V-shaped groove positioning block. V-shaped groove, V-shaped groove connected to both sides of the V-shaped groove locating block (5), and collinear with the V-shaped groove on the V-shaped groove stopper (2), the V-shaped groove on the upper surface of the V-shaped groove locating block Two through holes for fastening and positioning are drilled symmetrically on both sides, and bolts (6) are installed in the through holes, and the V-shaped groove positioning block is fixed on the upper surface of the fixture base (1) by bolt connection. 4. The positioning and clamping device for the driving shaft according to claim 1, characterized in that, two ends of the clamp base (1) are provided with U-shaped grooves, and the U-shaped grooves connect the upper and lower surfaces of the clamp base (1). Through connections. 5. The positioning and clamping device of the driving shaft according to claim 1, characterized in that, the clamp base (1) is cut along the position between the first clamping device and the second clamping device, and at the fracture A telescopic rod is installed. 6. The positioning and clamping device of the driving shaft according to claim 1, characterized in that, a horizontal measuring tube is also installed on the clamp base (1).