CN204818836U - A frock clamp for eccentric deep hole of vertical milling machine brill cylindrical parts - Google Patents

Abstract

The utility model is a tooling fixture for drilling eccentric deep holes of cylindrical workpieces with a vertical milling machine, including an elevating table, an electric control drive mechanism and two positioning mechanisms arranged on the front side of the elevating table. 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

Fixture for vertical milling machine to drill eccentric deep hole in cylindrical workpiece

technical field

The utility model belongs to the technical field of mechanical manufacturing, in particular to a tooling fixture for drilling eccentric deep holes in cylindrical workpieces with a vertical milling machine.

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 an easy-to-operate, high-precision, high-safety and reliable fixture for vertical milling machines to drill eccentric deep holes in cylindrical workpieces.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the fixture for vertical milling machine to drill eccentric deep holes of cylindrical workpieces, including lifting table, electric control drive mechanism and two positioning mechanisms, each positioning mechanism includes The connecting plate and the positioning clamping block, the connecting plate is fixedly connected to the lifting platform by connecting bolts, a flat keyway is correspondingly provided between the rear side of the connecting plate and the front side of the lifting platform, and a positioning key is arranged in the flat keyway, and the front side of the connecting plate is connected by connecting The block is fixedly connected to the rear side of the positioning clamping block. There are mounting ports located on the left and right sides of the connecting block between the front side of the connecting plate and the rear side of the positioning clamping block. The connecting bolts are located in the mounting port. There is a V-shaped The V-shaped mouth is set forward and the center line is vertical. The V-shaped mouths of the two positioning clamping blocks correspond up and down and the center lines coincide; the front side of the lifting platform is provided with a support plate located under the lower positioning clamping block;

The electric control drive mechanism includes a frame and a guide rod whose rear end is fixedly connected to the lifting platform. The front end of the guide rod is fixedly connected to the frame. A motor and two guide rails are arranged on the frame. Located at the rear of the two guide rails, the two guide rails are slidably connected with a sliding seat, and a nut is provided at the bottom of the sliding seat. The main shaft of the motor is connected to the screw rod coaxially through the coupling. The screw rod is parallel to the guide rails and threaded with the nut. The sliding seat is provided with a push-pull rod coaxial with the screw rod, the rear end of the push-pull rod is connected with a pressure plate, and the pressure 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 technical scheme, the vertical milling machine includes a base, a column on the base, and a power drive device on the column. The front side of the column is provided with a slide rail along the vertical direction, and a lifting table is slidably connected to the slide rail. The power drive device The power output end of the drive is connected with a drill clamp, which clamps a vertical drill bit, and the front side of the lifting platform is slidingly connected with the tooling clamp of the present invention through a dovetail groove structure; the center line of the V-shaped mouth is parallel to the drill bit and uniform Located on a vertical plane along the front-to-back direction.

When the utility model is in use, the motor is controlled, the motor drives the screw to rotate through the coupling, the nut threadedly connected with the screw moves axially along the screw, the nut drives the slide to move along the two guide rails, and the slide passes through the push-pull rod Pull the pressure plate to move forward along the guide rod, place the cylindrical workpiece vertically between the V-shaped mouth of the positioning clamping block and the pressure plate, place the lower end of the cylindrical workpiece on the support plate, and then control the motor to drive the pressure plate to move backward. The cylindrical workpiece is pressed to the V-shaped opening of the positioning clamping block, thereby completing the clamping and positioning of the cylindrical workpiece. Then start the power drive device, the power drive device drives the drill bit to rotate, and then controls the lifting table of the milling machine to move upwards. Since the center line of the V-shaped mouth is parallel to the drill bit and both are located on the vertical plane along the front and rear directions, eccentric deep processing can be completed. hole work. When the eccentricity needs to be adjusted, the power drive device moves along the guide rail on the upper surface of the column to realize milling of workpieces with different eccentricity.

To sum up, the utility model has the advantages of simple structure, easy manipulation, convenient operation and high degree of automation. It 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 of drawings

Fig. 1 is the structural representation that the utility model is installed on the vertical milling machine after removing the electric control driving mechanism;

Fig. 2 is a top view of Fig. 1 with the electric control driving mechanism added.

Detailed ways

As shown in Figure 1 and Figure 2, the tooling fixture used for drilling eccentric deep holes in cylindrical workpieces with vertical milling machines includes an electric control drive mechanism and two positioning mechanisms, and each positioning mechanism includes a connecting plate 8 and a positioning clamping block 9. The connecting plate 8 is fixedly connected to the lifting platform 5 through connecting bolts 10. A flat keyway is correspondingly provided between the rear side of the connecting plate 8 and the front side of the lifting platform 5, and a positioning key 11 is arranged in the flat keyway. The front side of the connecting plate 8 The connection block 24 is fixedly connected to the rear side of the positioning and clamping block 9, and there are installation ports 26 located on the left and right sides of the connection block 24 between the front side of the connection plate 8 and the rear side of the positioning and clamping block 9, and the connecting bolt 10 is located at the installation port 26 Inside, the front side of the positioning clamping block 9 is provided with a V-shaped opening, the V-shaped opening faces forward and the center line is vertically arranged, the V-shaped openings of the two positioning clamping blocks 9 correspond up and down and the center lines overlap, and the center line of the V-shaped opening Parallel to the drill bit 7 and located on a vertical plane along the front-to-back direction; the front side of the lifting platform 5 is provided with a support plate 12 located below a positioning clamping block 9 on the lower side.

The electric control drive mechanism includes a frame 13 and a guide rod 14 whose rear end is fixedly connected to the lifting platform 5, and the front end of the guide rod 14 is fixedly connected to the frame 13, and the frame 13 is provided with a motor 15 and two guide rails 16, the guide rail 16 and the guide rail The rods 14 are horizontally arranged along the front and rear directions, the motor 15 is positioned at the rear of the two guide rails 16, the two guide rails 16 are slidably connected with a slide seat 17, the bottom of the slide seat 17 is provided with a nut 18, and the main shaft of the motor 15 passes through a coupling 19 A screw mandrel 20 is connected axially, and the screw mandrel 20 is parallel to the guide rail 16 and is threadedly connected with the nut 18. The sliding seat 17 is provided with a push-pull rod 21 coaxial with the screw mandrel 20, and the rear end of the push-pull rod 21 is connected with a pressing plate 22. The pressing plate 22 is provided with a guide hole 23 for passing 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.

The vertical milling machine includes a base 1, a column 2 on the base 1, and a power drive device 3 on the column 2. The front side of the column 2 is provided with a slide rail 4 along the vertical direction, and the slide rail 4 is slidably connected with a lifting table 5. , the power output end of the power drive unit 3 is connected with a drill clamp 6, and the drill clamp 6 clamps a vertical drill 7, and the upper front side of the lift table 5 is slidingly connected with a tooling clamp of the present invention through a dovetail groove structure.

When the utility model is used in work, the motor 15 is controlled, and the motor 15 drives the screw rod 20 to rotate through the shaft coupling 19. The nut 18 threaded with the screw rod 20 moves axially along the screw rod 20, and the nut 18 drives the slide seat 17 along the two sides. The bar guide rail 16 moves, and the sliding seat 17 pulls the pressure plate 22 to move forward along the guide rod 14 through the push-pull rod 21, and the cylindrical workpiece 25 is vertically placed between the V-shaped mouth of the positioning clamping block 9 and the pressure plate 22, and the cylindrical workpiece 25 The lower end is placed on the support plate 12, and then the motor 15 is controlled to drive the pressure plate 22 to move backward to press the cylindrical workpiece 25 to the V-shaped mouth of the positioning clamping block 9, thereby completing the clamping and positioning of the cylindrical workpiece 25 . Then start the power drive device 3, the power drive device 3 drives the drill bit 7 to rotate, and then the lifting platform 5 of the control milling machine moves upwards, because the center line of the V-shaped mouth is parallel with the drill bit 7 and is all located on the vertical plane along the front and rear direction, so just It can complete the operation of eccentric deep hole machining. When the eccentricity needs to be adjusted, the power driving device 3 moves along the guide rail on the upper surface of the column 2 to realize milling of workpieces with different eccentricity.

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 for drilling eccentric deep holes in cylindrical workpieces with vertical milling machines is characterized in that it includes a lifting table, an electric control drive mechanism and two positioning mechanisms, and each positioning mechanism includes a connecting plate and a positioning clamping block, The connecting plate is fixedly connected to the lifting platform by connecting bolts. There is a flat keyway correspondingly between the rear side of the connecting plate and the front side of the lifting platform. There is a positioning key in the flat keyway. The front side of the connecting plate is connected to the rear side of the positioning clamping block through the connecting block. Fixed connection, there are installation ports on the left and right sides of the connection block between the front side of the connecting plate and the rear side of the positioning clamping block, the connecting bolts are located in the mounting port, the front side of the positioning clamping block is provided with a V-shaped port, the V-shaped port faces forward and The center line is vertically set, the V-shaped openings of the two positioning clamping blocks correspond up and down and the center lines coincide; the front side of the lifting platform is provided with a support plate under the positioning clamping block on the lower side; The electric control drive mechanism includes a frame and a guide rod whose rear end is fixedly connected to the lifting platform. The front end of the guide rod is fixedly connected to the frame. A motor and two guide rails are arranged on the frame. Located at the rear of the two guide rails, the two guide rails are slidably connected with a sliding seat, and a nut is provided at the bottom of the sliding seat. The main shaft of the motor is connected to the screw rod coaxially through the coupling. The screw rod is parallel to the guide rails and threaded with the nut. The sliding seat is provided with a push-pull rod coaxial with the screw rod, the rear end of the push-pull rod is connected with a pressure plate, and the pressure plate is provided with a guide hole for passing through the guide rod. 2. The jig for vertical milling machine drilling eccentric deep holes of cylindrical workpieces according to claim 1, characterized in that: said connecting plate, connecting block and positioning and clamping block are integrally formed.