Special machine tool for drilling and reaming brake bottom plate of heavy chuck brake

Abstract

A special machine tool for drilling and reaming a brake bottom plate of a heavy chuck brake is characterized in that two transverse guide rails and a sliding plate are arranged on the rear portion of a workbench, and a lead screw and a motor are arranged below the sliding plate; a cylinder frame and a vertical cylinder are arranged in the middle of the rear side of the sliding plate, and a tensioning positioning disc and a pull rod are arranged on the cylinder frame; the front side of the cylinder frame is provided with a jacking cylinder seat and a cylinder; the rear end of the cylinder is provided with a jacking plate; lever oil cylinders are arranged on left and right sides of the jacking cylinder seat. Two vertical racks are arranged on the left and right sides of the front part of the workbench, vertical guide rails are arranged behind the vertical racks, a headstock is arranged on the guide rails, and a lead screw and a motor are arranged in front of the headstock; a rotating motor is arranged below a machine shaft on a machine head seat, a vertical machine head is arranged on the lower portion of the machine head seat, a multi-shaft device is arranged at the lower end of the vertical machine head, and the front of the multi-shaft device is connected with a vertical guide rail through a multi-shaft device connecting frame. A drill bit is arranged below the left multi-shaft device, and a reamer is arranged below the right multi-shaft device. The problem that the work efficiency is low when a common machine tool is used for machining the brake bottom plate of the heavy chuck brake is solved, and the machine tool is suitable for heavy truck production enterprises.

Description

Technical Field

[0001] This utility model relates to the field of drilling and tapping machinery and equipment, specifically a special machine tool for drilling, reaming, and countersinking the brake base plate of a 9T heavy truck disc brake. Background Technology

[0002] The 9T heavy-duty truck disc brake base plate has several mounting holes that need to be drilled and reamed. The traditional method is to use an ordinary drilling machine to complete the drilling and reaming multiple times. The disadvantage of this method is that it is labor-intensive, time-consuming, and inefficient. Utility Model Content

[0003] This utility model addresses the problem of low efficiency in machining heavy-duty truck disc brake base plates using ordinary machine tools by providing a bidirectional drilling and reaming machine tool for heavy-duty truck disc brake base plates.

[0004] The technical solution of this utility model is a special machine tool for drilling and reaming the base plate of a heavy truck disc brake. Its special feature is that two transverse guide rails arranged in a front-to-back manner are installed at the rear of the flat worktable. A transverse slide is installed on the transverse guide rails. A transverse lead screw is installed in the middle under the transverse slide. A matching transverse motor is installed at the right end of the transverse lead screw. The transverse motor is fixed on the right side of the worktable.

[0005] A frame-shaped tensioning cylinder bracket is installed in the middle of the rear of the horizontal slide plate. A vertical tensioning cylinder is installed inside the tensioning cylinder bracket. A tensioning positioning plate is installed on the tensioning cylinder bracket. A pull rod is fitted in the middle of the tensioning positioning plate. A nut is installed at the upper end of the pull rod. The lower end of the pull rod is connected to the tensioning cylinder. A horizontal vertical plate-shaped clamping cylinder seat is installed on the front side of the tensioning cylinder bracket. A clamping cylinder with a rear-mounted cylinder rod is installed on the clamping cylinder rod. A horizontal clamping plate is installed on the clamping cylinder rod. Rear-mounted positioning pins are installed on the left and right sides of the clamping plate. Lever cylinders are installed on the left and right sides of the clamping cylinder seat. A workpiece pad is installed on the rear side of the lever cylinder.

[0006] Two vertical frames are arranged on the front left and right sides of the workbench. Behind the vertical frames are two vertical guide rails arranged on the left and right. A machine head base is mounted on the vertical guide rails. A vertical lead screw is mounted in the middle of the front of the machine head base. A matching vertical motor is mounted at the upper end of the lead screw, and the vertical motor is fixed to the top of the vertical frame. A rotary motor with a lower-mounted spindle is mounted above the machine head base. A vertical machine head is mounted at the lower part of the machine head base, and the vertical machine head is connected to the rotary motor. A multi-spindle assembly is mounted at the lower end of the vertical machine head. A multi-spindle assembly connecting bracket is mounted in front of the multi-spindle assembly, and the connecting bracket is connected to the vertical guide rails. A drill bit is mounted below the left multi-spindle assembly, and a reamer is mounted below the right multi-spindle assembly.

[0007] During operation, the center hole of the workpiece is fitted onto the tensioning positioning plate, and the bottom surface of the workpiece rests against the workpiece pad. The top-tightening cylinder is activated to push the top-tightening plate and positioning pins to move backward, so that the two positioning pins clamp the workpiece. The tensioning cylinder is activated to pull the lever downward, so that the tensioning positioning plate opens and fits tightly against the outer periphery of the center hole of the workpiece. The lever cylinder is activated to press the workpiece.

[0008] Start the left vertical motor, which, through a vertical lead screw, pushes the left headstock and multi-spindle connecting frame, carrying the rotary motor, vertical headstock, and multi-spindle to move downwards along the vertical guide rail to the workpiece position. Start the rotary motor, which, through the vertical headstock, drives the drill bit under the multi-spindle to drill a hole in the workpiece. After drilling is complete, start the horizontal motor, which, through a horizontal lead screw, pulls the horizontal slide plate carrying the workpiece to the right along the horizontal guide rail to below the right vertical headstock. Start the right vertical motor, which, through a vertical lead screw, pushes the right headstock and multi-spindle connecting frame, carrying the rotary motor, vertical headstock, and multi-spindle to move downwards along the vertical guide rail to the workpiece position. Start the rotary motor, which, through the vertical headstock, drives the reamer under the multi-spindle to ream the hole in the workpiece.

[0009] The technical effect of this utility model is that, by adopting the above technical solution, a special machine tool for drilling and reaming the brake base plate of heavy truck disc brakes can be realized. Since the workpiece is clamped and fixed at one time, drilling and reaming of multiple holes can be completed at the same time, saving labor and time and greatly improving work efficiency. Attached Figure Description

[0010] Figure 1 This is the main structural view of this utility model.

[0011] Figure 2 This is a structural view of the horizontal sliding plate of this utility model.

[0012] In the diagram, 1 is the worktable, 2 is the transverse guide rail, 3 is the transverse lead screw, 4 is the transverse motor, 5 is the vertical frame, 6 is the vertical guide rail, 7 is the vertical lead screw, 8 is the multi-axis device, 9 is the multi-axis device connecting frame, 10 is the motor mount, 11 is the rotary motor, 12 is the vertical motor, 13 is the vertical machine head, 14 is the tensioning plate, 15 is the lever cylinder, 16 is the workpiece pad, 17 is the tie rod, 18 is the nut, 19 is the tensioning positioning plate, 20 is the tensioning cylinder seat, 21 is the tensioning cylinder, 22 is the top-clamping cylinder seat, 23 is the positioning column, 24 is the top-clamping cylinder, and 25 is the transverse slide plate. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] As shown in the figure, two horizontal guide rails 2 arranged in a front-to-back pattern are installed on the rear part of the flat worktable 1. A horizontal slide plate 25 is installed on the horizontal guide rails 2. A horizontal lead screw 3 is installed in the middle below the horizontal slide plate 25. A matching horizontal motor 4 is installed at the right end of the horizontal lead screw 3. The horizontal motor 4 is fixed on the right side of the worktable 1.

[0015] A frame-shaped tension cylinder bracket 20 is installed in the middle of the rear of the horizontal slide plate 25. A vertical tension cylinder 21 is installed inside the tension cylinder bracket 20. A tension positioning plate 19 is installed on the tension cylinder bracket 20. A pull rod 17 is fitted in the middle of the tension positioning plate 19. A nut 18 is installed at the upper end of the pull rod 17. The lower end of the pull rod 17 is connected to the tension cylinder 21. A horizontal vertical plate-shaped clamping cylinder seat 22 is installed on the front side of the tension cylinder bracket 20. A clamping cylinder 24 with a rear-mounted cylinder rod is installed on the clamping cylinder seat 22. A horizontal clamping plate 14 is installed on the cylinder rod of the clamping cylinder 24. Rear-mounted positioning pins 23 are installed on the left and right sides of the clamping plate 14. A lever cylinder 15 is installed on the left and right sides of the clamping cylinder seat 22. A workpiece pad 16 is installed on the rear side of the lever cylinder 15.

[0016] Two vertical frames 5 are arranged on the front left and right sides of the workbench 1. Two vertical guide rails 6 are arranged on the left and right sides at the rear of the vertical frames 5. A headstock 10 is mounted on the vertical guide rails 6. A vertical lead screw 7 is mounted in the middle of the front of the headstock 10. A vertical motor 12 is mounted on the upper end of the vertical lead screw 7. The vertical motor 12 is fixed to the top of the vertical frame 5. A rotary motor 11 with a lower shaft is mounted on the top of the headstock 10. A vertical headstock 13 is mounted on the lower part of the headstock 10. The vertical headstock 13 is connected to the rotary motor 11. A multi-spindle head 8 is mounted on the lower end of the vertical headstock 13. A multi-spindle head connecting bracket 9 is mounted in front of the multi-spindle head 8. The multi-spindle head connecting bracket 9 is connected to the vertical guide rails 6. A drill bit is mounted below the left multi-spindle head 8, and a reamer is mounted below the right multi-spindle head 8.

[0017] During operation, the center hole of the workpiece is fitted onto the tensioning positioning plate 19, and the bottom surface of the workpiece rests against the workpiece pad 16. The top-tightening cylinder 24 is activated to push the top-tightening plate 14 and the positioning pin 23 to move backward, so that the two positioning pins 23 clamp the workpiece. The tensioning cylinder 21 is activated to pull the pull rod 17 downward, so that the tensioning positioning plate 19 opens and fits tightly against the outer periphery of the center hole of the workpiece. The lever cylinder 21 is activated to press the workpiece.

[0018] Start the left vertical motor 12, which, in conjunction with the vertical lead screw 7, pushes the left headstock 10 and multi-spindle connecting frame 9, carrying the rotary motor 11, vertical headstock 13, and multi-spindle 8 to move downwards along the vertical guide rail 6 to the workpiece position. Start the rotary motor 11, which, through the vertical headstock 13, drives the drill bit under the multi-spindle 8 to drill a hole in the workpiece. After drilling is completed, start the horizontal motor 4, which, in conjunction with the horizontal lead screw 3, pulls the horizontal slide plate 25 to move the workpiece to the right along the horizontal guide rail 2 to below the right vertical headstock 10. Start the right vertical motor 12, which, in conjunction with the vertical lead screw 7, pushes the right headstock 10 and multi-spindle connecting frame 9, carrying the rotary motor 11, vertical headstock 13, and multi-spindle 8 to move downwards along the vertical guide rail 6 to the workpiece position. Start the rotary motor 11, which, through the vertical headstock 13, drives the reamer under the multi-spindle 8 to ream the hole in the workpiece.

Claims

1. A special machine tool for drilling and reaming the base plate of a heavy-duty truck disc brake, characterized in that: in The rear of the horizontal worktable is equipped with two transverse guide rails arranged in a front-to-back pattern. A transverse slide is mounted on the transverse guide rails, and a transverse lead screw is mounted in the middle below the transverse slide. A matching transverse motor is mounted on the right end of the transverse lead screw, and the transverse motor is fixed to the upper right side of the worktable. A frame-shaped tension cylinder bracket is mounted in the middle of the rear of the transverse slide. A vertical tension cylinder is installed inside the tension cylinder bracket. A tension positioning plate is mounted on the tension cylinder bracket. A tie rod is matched in the middle of the tension positioning plate. A nut is mounted on the upper end of the tie rod, and the lower end of the tie rod is connected to the tension cylinder. A transverse vertical plate-shaped clamping cylinder seat is mounted on the front side of the tension cylinder bracket. A clamping cylinder with a rear-mounted cylinder rod is mounted on the clamping cylinder seat. A transverse clamping plate is mounted on the cylinder rod of the clamping cylinder. Rear-mounted positioning pins are mounted on the left and right sides of the clamping plate. Lever cylinders are mounted on the left and right sides of the clamping cylinder seat, and workpiece pads are mounted on the rear side of the lever cylinders. Two vertical frames are arranged on the front left and right sides of the worktable. Two vertical guide rails are mounted on the rear of the vertical frames, and a machine head seat is mounted on the vertical guide rails. A vertical lead screw is mounted in the middle of the front of the machine head seat, and a matching vertical motor is mounted at the upper end of the lead screw. The vertical motor is fixed to the top of the vertical frame. A rotary motor with a lower-mounted spindle is mounted on the top of the machine head seat, and a vertical machine head is mounted at the lower part of the machine head seat. The vertical machine head is connected to the rotary motor. A multi-spindle assembly is mounted at the lower end of the vertical machine head, and a multi-spindle assembly connecting bracket is mounted in front of the multi-spindle assembly, which is connected to the vertical guide rails. A drill bit is mounted below the left multi-spindle assembly, and a reamer is mounted below the right multi-spindle assembly.

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