Special machine tool for drilling rims of mine transport vehicles

Abstract

A special machine tool for drilling a rim of a mine transport vehicle is characterized in that a tool bottom plate is arranged on the rear portion of a workbench, a rack is arranged on the front portion of the workbench, a machine head multi-shaft device is arranged on the upper portion of the rack, and four vertical guide columns are arranged outside the multi-shaft device; two longitudinal guide rails are arranged on the tool bottom plate, sliding plates are arranged on the longitudinal guide rails, cylindrical supporting seats are arranged on the sliding plates, four positioning blocks are arranged on the peripheral edges of the upper surfaces of the supporting seats, and inner cone closing dies are arranged on the sliding plates on the left side and the right side of the supporting seats; frame-shaped air cylinder seats are arranged on the tool bottom plate on the left side and the right side of the two longitudinal guide rails, locking air cylinders with cylinder rods arranged on the upper portions are arranged in the air cylinder seats, outer cone closing dies are arranged on the cylinder rods of the locking air cylinders, vertical tensioning oil cylinders are arranged on the outer sides of the air cylinder seats, pull rods arranged on the upper portions are arranged on cylinder rods of the tensioning oil cylinders, and the upper ends of the pull rods are fixedly connected with the guide hole plate. Two upwards-arranged sliding plate positioning blocks are arranged on the front edge of the tool bottom plate in a left-right row mode; the utility model solves the problem of low working efficiency when a common machine tool is used for processing the rim mounting hole of the mine transport vehicle, and is suitable for mine transport wheel production enterprises.

Description

Technical Field

[0001] This utility model relates to the field of drilling machinery, specifically a special machine tool for drilling holes for mounting holes in the rims of mining transport vehicles. Background Technology

[0002] There are mounting holes around the circumference of the outer surface of the wheel rim of a mining transport vehicle. The traditional method is to use an ordinary drilling machine to process them, which requires drilling each hole multiple times. The disadvantages are that it is labor-intensive, time-consuming and inefficient. Utility Model Content

[0003] This utility model addresses the problem of low work efficiency in machining mounting holes for mine transport vehicle wheels using ordinary machine tools by providing a special machine tool that can complete all drilling in one operation by clamping the workpiece once.

[0004] The technical solution of this utility model is a special machine tool for drilling rims of mining transport vehicles. Its special feature is that a tooling base plate is installed at the rear of a flat worktable, and an upper vertical plate-shaped frame is installed on the front side of the tooling base plate. The upper part of the frame is bent backward in a longitudinal direction, and a vertical drilling head is installed at the front end of the upper part of the frame. A multi-spindle assembly is installed below the drilling head, and four vertical guide columns arranged in a square are installed on the outer edge of the multi-spindle assembly. The lower ends of the vertical guide columns are fixed to the tooling base plate. A guide plate is installed below the multi-spindle assembly, and the guide plate is slidably connected to the four guide columns. A positioning hole is opened in the center of the guide plate, and guide holes corresponding to the required number of holes in the rim are opened around the positioning hole.

[0005] Two longitudinal guide rails are arranged in the middle of the tooling base plate. The rear sections of the longitudinal guide rails extend beyond the rear edge of the tooling base plate. Longitudinal slide plates are mounted on the longitudinal guide rails, and cylindrical support seats are mounted on the longitudinal slide plates. Four positioning blocks are evenly distributed along the outer edge of the support seats. A circumferential positioning post is mounted on the rear edge of the support seats. Inner conical mold closing devices are mounted on the longitudinal slide plates on the left and right sides of the support seats. Frame-shaped cylinder seats are mounted on the tooling base plate on the left and right sides of the two longitudinal guide rails. Locking cylinders with cylinder rods mounted inside the cylinder seats are mounted on the cylinder rods of the locking cylinders. Outer conical mold closing devices are mounted on the cylinder rods of the locking cylinders. Vertical tensioning cylinders are mounted on the outer side of the cylinder seats. A pull rod is mounted on the cylinder rod of the tensioning cylinder, and the upper end of the pull rod is fixedly connected to the guide plate. Two upper-mounted slide plate positioning blocks are arranged in rows on the left and right sides of the front edge of the tooling base plate.

[0006] During operation, first install the drill bit corresponding to the required number of holes on the rim on the multi-spindle. Place the longitudinal slide plate at the rear of the longitudinal guide rail, and place the workpiece on the support seat of the longitudinal slide plate, ensuring that the middle hole of the workpiece fits onto the positioning block, and one hole on the outer circumference of the workpiece is secured to the circumferential positioning post to prevent rotation. Push the longitudinal slide plate, carrying the support seat, and the workpiece forward along the longitudinal guide rail until the leading edge of the longitudinal slide plate reaches the rear of the slide plate positioning block and stops. Activate the locking cylinder to push the outer conical mold upward, causing the outer conical mold to insert into the inner conical molds on both sides of the longitudinal slide plate and lock them in place. Activate the tensioning cylinder to drive the pull rod and pull the guide plate down onto the workpiece; activate the drilling head to drive the drill bit on the multi-spindle, drilling the workpiece through the guide holes on the guide plate. After drilling is complete, the drilling head drives the multi-spindle and the drill bit to reset, the tensioning cylinder pushes the guide plate up to reset, the locking cylinder pulls the outer conical mold away from the inner conical mold, and the longitudinal slide plate, carrying the support seat, moves the workpiece backward along the longitudinal guide rail to reset. The workpiece can then be removed.

[0007] The technical advantage of this utility model is that, by adopting the above technical solution, a drilling machine for drilling mounting holes on the surface of mining transport vehicle wheel rims can be realized. Since it is fixed and clamped at one time, multiple drilling processes can be completed at the same time, saving labor and time and greatly improving work efficiency. Attached Figure Description

[0008] Figure 1 This is the main structural view of this utility model.

[0009] In the diagram, 1 is the workbench, 2 is the frame, 3 is the drilling head, 4 is the multi-spindle head, 5 is the guide post, 6 is the guide plate, 7 is the guide hole, 8 is the positioning block, 9 is the circumferential positioning post, 10 is the inner cone mold closing, 11 is the support base, 12 is the longitudinal slide plate, 13 is the longitudinal guide rail, 14 is the cylinder seat, 15 is the locking cylinder, 16 is the outer cone mold closing, 17 is the tensioning cylinder, 18 is the tie rod, 19 is the tooling base plate, and 20 is the slide plate positioning block. Detailed Implementation

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] As shown in the figure, a tooling base plate 19 is installed at the rear of the flat worktable 1. A vertical plate-shaped frame 2 is installed on the front side of the tooling base plate 19. The upper part of the frame 2 is bent backward in a longitudinal direction. A vertical drilling head 3 is installed at the front end of the upper part of the frame 2. A multi-spindle head 4 is installed below the drilling head 3. Four vertical guide posts 5 arranged in a square are installed on the outer side of the multi-spindle head 4. The lower end of the vertical guide posts 5 is fixed on the tooling base plate 19. A guide plate 6 is installed below the multi-spindle head 4. The guide plate 6 is slidably connected to the four guide posts 5. A positioning hole is opened in the center of the guide plate 6. Guide holes 7 corresponding to the number of holes required for the wheel rim are opened around the positioning hole.

[0012] Two longitudinal guide rails 13 are arranged on the left and right sides of the middle of the tooling base plate 19. The rear sections of the longitudinal guide rails 13 extend beyond the rear of the tooling base plate 19. A longitudinal slide plate 12 is mounted on the longitudinal guide rail 13. An upper cylindrical support seat 11 is mounted on the longitudinal slide plate 12. Four positioning blocks 8 are evenly distributed on the outer edge of the support seat 11. An upper circumferential positioning post 9 is mounted on the rear edge of the support seat 11. Inner conical mold clamping parts 10 are mounted on the longitudinal slide plates 12 on the left and right sides of the support seat 11, respectively. ; Frame-shaped cylinder seats 14 are respectively installed on the left and right sides of the tooling base plate 19 of the two longitudinal guide rails 13. Locking cylinders 15 with cylinder rods are installed inside the cylinder seats 14. External cone mold closing 16 is installed on the cylinder rod of the locking cylinder 15. Vertical tensioning cylinders 17 are installed on the outside of the cylinder seats 14. Upper-mounted pull rods 18 are installed on the cylinder rod of the tensioning cylinders 17. The upper end of the pull rods 18 is fixedly connected to the guide hole plate 6. Two upper-mounted sliding plate positioning blocks 20 are arranged on the left and right sides of the front edge of the tooling base plate 19.

[0013] During operation, first, install the drill bit corresponding to the required number of holes on the rim on the multi-spindle 4. Place the longitudinal slide plate 12 at the rear of the longitudinal guide rail 13, and place the workpiece on the support seat 11 of the longitudinal slide plate 12, so that the middle hole of the workpiece fits onto the positioning block 8, and one hole on the outer ring of the workpiece is fastened to the circumferential positioning post 9 to prevent the workpiece from rotating. Push the longitudinal slide plate 12 to carry the support seat 11 and the workpiece forward along the longitudinal guide rail 13. The leading edge of the longitudinal slide plate 12 reaches the rear of the slide plate positioning block 20 and stops. Activate the locking cylinder 15 to push the outer conical mold 16 upward, so that the outer conical mold 16 is inserted into the inner conical mold 10 on both sides of the longitudinal slide plate 12 and locked. Activate the tensioning cylinder 17 to drive the pull rod 18 to pull the guide plate 6 down onto the workpiece; activate the drilling head 3 to drive the drill bit on the multi-spindle 4, and drill holes in the workpiece through the guide holes 7 on the guide plate 6. After drilling is completed, the drilling head 3 drives the multi-spindle 4 and the drill bit to reset. The tensioning cylinder 17 pushes the guide plate 6 to rise and reset. The locking cylinder 15 pulls the outer cone mold 16 to disengage from the inner cone mold 10. The longitudinal slide plate 12 pulls the support seat 11 and the workpiece moves backward along the longitudinal guide rail 13 to reset. The workpiece can then be removed.

Claims

1. A special machine tool for drilling holes in the rims of mining transport vehicles, characterized in that: A tooling base plate is mounted on the rear of the flat worktable. A vertical frame is mounted on the front of the tooling base plate, with the upper part of the frame curving backward longitudinally. A vertical drilling head is mounted at the front end of the upper part of the frame. A multi-spindle head is mounted below the drilling head, and four vertical guide posts arranged in a square are mounted on the outer edge of the multi-spindle head. The lower ends of the vertical guide posts are fixed to the tooling base plate. A guide plate is mounted below the multi-spindle head, slidingly connected to the four guide posts. A positioning hole is opened in the center of the guide plate, and guide holes corresponding to the required number of holes on the wheel rim are opened around the positioning hole. Two longitudinal guide rails are arranged on the left and right sides of the middle of the tooling base plate, with the rear sections of the longitudinal guide rails extending beyond the rear edge of the tooling base plate. The upper part is equipped with a longitudinal slide plate, on which is mounted an upper cylindrical support base. Four positioning blocks are evenly distributed along the outer edge of the support base. An upper circumferential positioning post is mounted on the rear edge of the support base. Inner conical mold closing devices are mounted on the left and right longitudinal slide plates of the support base. Frame-shaped cylinder seats are mounted on the left and right tooling base plates of the two longitudinal guide rails. Locking cylinders with upper cylinder rods are installed inside the cylinder seats. Outer conical mold closing devices are mounted on the cylinder rods of the locking cylinders. Vertical tensioning cylinders are mounted on the outside of the cylinder seats. Upper pull rods are mounted on the cylinder rods of the tensioning cylinders. The upper end of the pull rods is fixedly connected to the guide plate. Two upper slide plate positioning blocks are mounted on the left and right sides of the front edge of the tooling base plate.

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