CN204868259U - Eccentric deep hole processing device's of pneumatic clamp type frock clamp - Google Patents

Abstract

The tooling fixture of the pneumatic clamping eccentric deep hole processing device includes a mounting plate, a pneumatic drive mechanism on the mounting plate and two positioning mechanisms. Each positioning mechanism includes a connecting plate and a positioning clamping block. The connecting plate is connected through the Bolts are fixedly connected to the mounting plate, and the upper surface of the connecting plate is fixedly connected with the lower surface of the positioning clamping block through the connecting block. There are installation ports on the left and right sides of the connecting block between the upper surface of the connecting plate and the lower surface of the positioning clamping block. The bolt is located in the installation port, and the upper side of the positioning clamping block is provided with a V-shaped opening. The V-shaped opening faces forward and the center line is arranged horizontally along the front and rear directions. The V-shaped openings of the two positioning clamping blocks correspond to each other and the center lines coincide. The utility model has the advantages of simple structure, easy manipulation, convenient operation and high degree of automation, and is specially used for drilling eccentric deep holes of cylindrical workpieces. It is easy to process, accurate in positioning, strong in practicability, and easy to popularize and apply.

Description

Pneumatic clamping fixture for eccentric deep hole processing device

technical field

The utility model belongs to the technical field of mechanical manufacturing, in particular to a tooling fixture of a pneumatic clamping type eccentric deep hole processing device.

Background technique

At present, in the machining industry, the machining of coaxial eccentric deep holes of cylindrical workpieces has always been relatively complicated, and the machining accuracy is difficult to guarantee; there are also milling machines used to drill eccentric deep holes, which are also difficult to process due to lack of suitable fixtures. Moreover, the safety and reliability are poor; when processing on a drilling machine, the positioning reference is not easy to select, and the drilling operation is also difficult to process. In order to solve the above problems, people have been seeking a more ideal technical solution.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a pneumatic clamping type eccentric deep hole processing device tooling fixture which is easy to operate, high in processing precision, and high in safety and reliability.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the tooling fixture of the pneumatic clamping type eccentric deep hole processing device includes a mounting plate, a pneumatic drive mechanism and two positioning mechanisms arranged on the mounting plate, and each positioning mechanism Both include a connecting plate and a positioning clamping block. The connecting plate is fixedly connected to the mounting plate through connecting bolts. There is a flat keyway correspondingly between the lower surface of the connecting plate and the upper surface of the mounting plate. There is a positioning key in the flat keyway. The surface is fixedly connected with the lower surface of the positioning clamping block through the connecting block. There are mounting ports on the left and right sides of the connecting block between the upper surface of the connecting plate and the lower surface of the positioning clamping block. The connecting bolts are located in the mounting port, and the upper side of the positioning clamping block There is a V-shaped mouth, the V-shaped mouth is facing forward and the center line is set horizontally along the front and rear directions, the V-shaped mouths of the two positioning clamping blocks correspond to the front and back and the center lines coincide; there is a positioning clip on the rear side vertically on the mounting plate support plate behind the tight block;

The pneumatic drive mechanism includes a frame and a guide rod whose lower end is fixedly connected to the mounting plate. The upper end of the guide rod is fixedly connected to the frame. The frame is provided with a cylinder along the vertical direction. The lower end of the piston rod of the cylinder is connected with two positioning clamping blocks up and down. Corresponding to the pressing plate, the pressing plate is provided with a guide hole for passing through the guide rod.

The connecting plate, the connecting block and the positioning and clamping block are integrally processed and formed.

Adopting the above-mentioned technical scheme, the pneumatic clamping type eccentric deep hole processing device also includes a base, on which a driving screw and two slide rails are arranged horizontally along the front and back directions, the driving screw is located between the two slide rails, and on the slide rails Slidingly connected with a movable seat, the lower part of the movable seat is threadedly connected with the transmission screw, the rear of the base is provided with a driving motor to drive the transmission screw to rotate, and the front side of the movable seat is provided with a rotating motor and a drill fixture connected by transmission, and the drill fixture holds Along the drill bit that is arranged horizontally in the front-back direction, the mounting plate of the present utility model is located at the base rear portion, and the center line of the V-shaped mouth is parallel to the drill bit and is all positioned on the vertical plane along the front-back direction.

When the pneumatic clamping type eccentric deep hole processing device is in use, the cylinder is controlled, and the piston rod of the cylinder pulls the pressure plate to move upward along the guide rod, and the cylindrical workpiece is placed vertically between the V-shaped mouth of the positioning clamping block and the pressure plate. The lower end of the workpiece is placed on the support plate, and then the cylinder is controlled to drive the pressure plate to move downward to compress the cylindrical workpiece to the V-shaped opening of the positioning clamping block, thereby completing the clamping and positioning of the cylindrical workpiece. Then start the driving motor, the driving motor drives the transmission screw to rotate, and the transmission screw drives the movable seat to move backward along the two slide rails. At the same time, the rotating motor drives the drill to rotate at a high speed. Along the vertical plane in the front-back direction, the drill bit performs eccentric machining of deep holes in the axial direction on the cylindrical workpiece. When the eccentricity needs to be adjusted, the gasket between the mounting plate and the connecting plate can be increased or decreased.

To sum up, the pneumatic clamping eccentric deep hole processing device is simple in structure, easy to control, convenient to operate, and has a high degree of automation. It is specially used for drilling eccentric deep holes in cylindrical workpieces. It is easy to process, accurate in positioning, and practical Strong and easy to promote and apply.

Description of drawings

Figure 1 is a schematic diagram of the structure of the pneumatic clamping type eccentric deep hole processing device after removing the pneumatic drive mechanism;

Fig. 2 is a left view of the tooling fixture in Fig. 1 after the pneumatic drive mechanism is added.

Detailed ways

As shown in Figure 1 and Figure 2, the pneumatic clamping type eccentric deep hole processing device includes a base 1, on which a transmission screw 2 and two slide rails 3 are horizontally arranged along the front and rear directions, and the transmission screw 2 is located on the two sides. Between the slide rails 3, a movable seat 4 is slidably connected on the slide rail 3, and the lower part of the movable seat 4 is threadedly connected with the transmission screw 2, and the rear part of the base 1 is provided with a drive motor 5 for driving the transmission screw 2 to rotate, and the movable seat 4 The front side is provided with a rotary motor 6 and a drill clamp 7 connected by transmission, and the drill clamp 7 clamps a drill 27 arranged horizontally along the front and rear directions. 28 on the pneumatic drive mechanism and two positioning mechanisms, each positioning mechanism includes a connecting plate 8 and a positioning clamping block 9, the connecting plate 8 is fixedly connected to the mounting plate 28 by connecting bolts 10, the lower surface of the connecting plate 8 is connected to the mounting plate A flat keyway is correspondingly arranged between the upper surfaces of the plates 28, and a positioning key 11 is arranged in the flat keyway. The upper surface of the connecting plate 8 is fixedly connected with the lower surface of the positioning clamping block 9 through the connecting block 24, and the upper surface of the connecting plate 8 is fixedly connected with the positioning clamping block. There are installation openings 26 located on the left and right sides of the connecting block 24 between the lower surfaces of the blocks 9, the connecting bolts 10 are located in the installation openings 26, and the upper side of the positioning clamping block 9 is provided with a V-shaped mouth, the V-shaped mouth is facing forward and the center line is along the The front and rear directions are arranged horizontally, the V-shaped openings of the two positioning clamping blocks 9 correspond to the front and back and the center lines coincide, and the center lines of the V-shaped openings are parallel to the drill bit 27 and are all located on the vertical plane along the front and rear direction; There is a support plate 12 behind a positioning clamping block 9 on the rear side.

The pneumatic drive mechanism includes a frame 13 and a guide rod 14 whose lower end is fixedly connected to the mounting plate 28. The upper end of the guide rod 14 is fixedly connected to the frame 13. The frame 13 is provided with a cylinder 15 along the vertical direction, and the lower end of the piston rod 16 of the cylinder 15 is connected to There is a pressing plate 17 corresponding to the two positioning and clamping blocks 9 up and down, and the pressing plate 17 is provided with a guide hole 18 for passing through the guide rod 14 .

The connecting plate 8, the connecting block 24 and the positioning and clamping block 9 are integrally processed and formed to fully enhance the positioning strength and positioning accuracy.

When the pneumatic clamping type eccentric deep hole processing device is in use, the cylinder 15 is controlled, the piston rod 16 of the cylinder 15 pulls the pressure plate 17 to move upward along the guide rod 14, and the cylindrical workpiece 25 is vertically placed on the V-shaped clamping block 9. Between the mouth and the pressure plate 17, the lower end of the cylindrical workpiece 25 is placed on the support plate 12, and then the cylinder 15 is manipulated to drive the pressure plate 17 to move downward to compress the cylindrical workpiece 25 to the V-shaped mouth of the positioning clamping block 9, Thus, the clamping and positioning of the cylindrical workpiece 25 is completed. Then start the driving motor 5, the driving motor 5 drives the transmission screw 2 to rotate, and the transmission screw 2 drives the movable seat 4 to move backwards along the two slide rails 3. At the same time, the rotating motor 6 drives the drill bit 27 to rotate at a high speed. The center line is parallel to the drill bit 27 and is located on the vertical plane along the front-back direction. The drill bit 27 performs the operation of eccentrically machining deep holes in the axial direction to the cylindrical workpiece 25 . When the eccentricity needs to be adjusted, the gasket between the mounting plate 28 and the connecting plate 8 can be increased or decreased.

This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model belong to the technology of the utility model. protection scope of the program.

Claims (2)

1. The tooling fixture of the pneumatic clamping type eccentric deep hole processing device is characterized in that it includes a mounting plate, a pneumatic drive mechanism and two positioning mechanisms on the mounting plate, and each positioning mechanism includes a connecting plate and a positioning clamping mechanism. The connecting plate is fixedly connected to the mounting plate by connecting bolts. There is a flat keyway between the lower surface of the connecting plate and the upper surface of the mounting plate. There is a positioning key in the flat keyway. The upper surface of the connecting plate is clamped by the connecting block and the positioning. The lower surface of the block is fixedly connected. There are installation ports located on the left and right sides of the connecting block between the upper surface of the connecting plate and the lower surface of the positioning clamping block. The connecting bolts are located in the mounting port. The mouth is facing forward and the center line is set horizontally along the front and rear directions. The V-shaped mouths of the two positioning clamping blocks correspond to each other and the center lines coincide; the mounting plate is vertically provided with a support plate behind the positioning clamping block on the rear side; The pneumatic drive mechanism includes a frame and a guide rod whose lower end is fixedly connected to the mounting plate. The upper end of the guide rod is fixedly connected to the frame. The frame is provided with a cylinder along the vertical direction. The lower end of the piston rod of the cylinder is connected with two positioning clamping blocks up and down. Corresponding to the pressing plate, the pressing plate is provided with a guide hole for passing through the guide rod. 2. The tooling fixture of the pneumatic clamping type eccentric deep hole processing device according to claim 1, characterized in that: the connecting plate, the connecting block and the positioning and clamping block are integrally formed.