Strength training machine weight plate selection rod drilling machine

Abstract

A drilling machine for selecting pin holes in strength training equipment is characterized by two transverse guide rails and a slide plate at the front of the worktable, with a lead screw and lead screw motor underneath the slide plate. Above the slide plate are drilling square columns and center hole square columns. Behind the drilling square columns are two vertical drilling guide rails, with a drilling head on each guide rail. In front of the drilling head are a vertical drilling lead screw and a drilling feed motor, and above the drilling head are a drilling gearbox and a drilling spindle motor. Behind the center hole square columns are two vertical center hole guide rails, with a center hole drilling head on each guide rail. In front of the center hole drilling head are a vertical center hole lead screw and a center hole feed motor, and above the center hole drilling head are a gearbox and a spindle motor. At the rear of the worktable, multiple rows of transverse positioning blocks are arranged longitudinally, with a clamping cylinder in the gap between each row of positioning blocks. This design solves the problems of low efficiency and poor precision in machining selection pin holes using ordinary drilling machines, making it suitable for use by fitness equipment manufacturers.

Description

Technical Field This utility model relates to the field of drilling machinery and equipment, specifically a special machine tool for radial drilling of the weight plate selection rod of a strength training machine. Background Technology

[0001] The weight plate selector bar of the strength training machine has multiple radial pin holes. The traditional processing method is to drill them one by one using an ordinary drilling machine. Since the selector bar is cylindrical and has a small diameter, the drill bit can easily slide to both sides during processing, affecting processing efficiency and accuracy. Utility Model Content

[0002] This utility model addresses the problems of low efficiency and poor precision in machining the pin holes of the counterweight selection rods of strength training equipment using ordinary drilling machines. It provides a drilling machine tool for the counterweight selection rods of strength training equipment that uses a specially designed center hole drill bit to pre-drill a groove at the center of the drilled hole.

[0003] The technical solution of this utility model is a drilling machine for selecting weight plates of a strength training device. Its special feature is that two transverse guide rails are arranged longitudinally at the front of the square worktable. A transverse slide is mounted on the transverse guide rails. A transverse lead screw is mounted in the middle below the transverse slide. A transverse motor is mounted on the right end of the transverse lead screw. The transverse motor is fixed on the right side of the worktable.

[0004] The left side of the horizontal slide plate is equipped with a drilling column. Behind the drilling column, on the left and right sides, are two vertical drilling guide rails. The drilling guide rails are equipped with a rear-mounted drilling head. The middle of the front of the drilling head is equipped with a vertical drilling screw. The upper end of the drilling screw is equipped with a drilling feed motor, which is fixed to the top of the drilling column. The drilling head is equipped with a drilling gearbox, and the drilling gearbox is equipped with a vertical drilling spindle motor. The bottom of the drilling head is equipped with a drilling drill bit.

[0005] The right side of the horizontal slide plate is equipped with a square column for center holes. Behind the square column for center holes, on the left and right, are two vertical center hole guide rails. The center hole guide rails are equipped with a rear-mounted center hole drilling head. The middle of the front of the center hole drilling head is equipped with a vertical center hole lead screw. The upper end of the center hole lead screw is equipped with a center hole feed motor. The center hole feed motor is fixed on the top of the square column for center holes. The center hole drilling head is equipped with a center hole gearbox. The center hole gearbox is equipped with a vertical center hole spindle motor. The center hole drilling head is equipped with a center hole drill bit.

[0006] The rear of the worktable has multiple rows of horizontal positioning pads arranged longitudinally (corresponding to the number of drill bits). Each row of positioning pads has a clamping cylinder installed in the gap. The upper end of the clamping cylinder is equipped with a longitudinal cylinder rod. Each row of positioning pads has a positioning block installed on the right end.

[0007] During operation, place the weight plate selection rod of the strength fitness machine to be processed horizontally on the positioning pad of each row and close to the positioning block. Start the clamping cylinder to tighten the cylinder rod. Start the horizontal motor, and through the cooperation of the horizontal screw and the horizontal slide, and the horizontal slide and the horizontal guide rail, pull the horizontal slide to the right. When the center hole drilling head reaches the top of the right end of the workpiece, the horizontal motor stops.

[0008] The center hole feed motor starts, and through the cooperation of the center hole screw and the center hole guide rail, it pushes the center hole drilling head downward. When the center hole drill bit approaches the first set of holes to be drilled on the workpiece, the center hole feed motor switches to working speed, and the center hole spindle motor starts. Through the center hole gearbox, it drives the center hole drill bit under the center hole drilling head to drill the center hole of the pin hole on the top of the workpiece. After that, the center hole spindle motor stops, the center hole feed motor reverses its rotation, and pulls the center hole drilling head back. Then, the transverse motor is started to pull the transverse slide to continue to move to the right to enter the next station for work.

[0009] When the drilling head reaches the upper right end of the workpiece, the drilling feed motor starts, pushing the drilling head downwards through the drilling screw and drilling guide. When the drilling bit approaches the first set of grooves to be drilled on the workpiece, the drilling feed motor switches to working speed, and the drilling spindle motor starts. Through the drilling gearbox, it drives the drilling bit under the drilling head to perform deep drilling on the center hole of the pin hole on the workpiece. After the hole is drilled through, the drilling spindle motor stops, the drilling feed motor reverses direction and pulls the drilling head back. The transverse motor pulls the transverse slide to the right, and the drilling head and the center hole drilling head move synchronously to the next station. This cycle continues until all the holes on the workpiece are drilled.

[0010] The technical effect of this utility model is that, by adopting the above technical solution, a machine tool can be realized that can clamp multiple weight plate selection rods of a strength training machine at one time for drilling. Since a center hole is pre-drilled at the center position of the pin hole using a specially made center hole drill bit, when the drilling bit continues to drill deeper along the center hole, the problem of the drill bit sliding to both sides is avoided, which improves work efficiency and ensures processing accuracy. Attached Figure Description

[0011] Figure 1 This is the main structural view of this utility model.

[0012] In the diagram, 1 is the transverse motor, 2 is the transverse guide rail, 3 is the transverse lead screw, 4 is the cylinder pressure rod, 5 is the transverse slide plate, 6 is the center hole square column, 7 is the center hole gearbox, 8 is the center hole spindle motor, 9 is the center hole lead screw, 10 is the center hole guide rail, 11 is the center hole feed motor, 12 is the drilling square column, 13 is the drilling feed motor, 14 is the drilling lead screw, 15 is the drilling guide rail, 16 is the drilling spindle motor, 17 is the drilling gearbox, 18 is the drilling head, 19 is the center hole drilling head, 20 is the positioning block, 21 is the positioning pad block, 22 is the clamping cylinder, and 23 is the worktable. 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, this embodiment takes four rows of positioning pads as an example. Two horizontal guide rails 2 are arranged longitudinally at the front of the square workbench 23. A horizontal slide plate 5 is mounted on the horizontal guide rail 2. A horizontal lead screw 3 is mounted in the middle below the horizontal slide plate 5. A horizontal motor 1 is mounted on the right end of the horizontal lead screw 3. The horizontal motor 1 is fixed on the right side of the workbench 23.

[0015] A drilling column 12 is mounted on the left side of the horizontal slide plate 5. Two vertical drilling guide rails 15 are mounted on the left and right sides behind the drilling column 12. A rear-mounted drilling head 18 is mounted on the drilling guide rails 15. A vertical drilling screw 14 is mounted in the middle in front of the drilling head 18. A drilling feed motor 13 is mounted on the upper end of the drilling screw 14. The drilling feed motor 13 is fixed on the upper side of the drilling column 12. A drilling gearbox 17 is mounted on the top of the drilling head 18. A vertical drilling spindle motor 16 is mounted on the top of the drilling gearbox 17. A drilling drill bit is mounted on the bottom of the drilling head 18.

[0016] A center hole square column 6 is mounted on the right side of the horizontal slide plate 5. Two vertical center hole guide rails 10 are mounted on the left and right sides behind the center hole square column 6. A rear-mounted center hole drilling head 19 is mounted on the center hole guide rail 10. A vertical center hole lead screw 9 is mounted in the middle in front of the center hole drilling head 19. A center hole feed motor 11 is mounted on the upper end of the center hole lead screw 9. The center hole feed motor 11 is fixed on the upper side of the center hole square column 6. A center hole gearbox 7 is mounted on the upper part of the center hole drilling head 19. A vertical center hole spindle motor 8 is mounted on the upper part of the center hole gearbox 7. A center hole drill bit is mounted on the lower part of the center hole drilling head 19.

[0017] The rear part of the worktable 23 has multiple rows of horizontal positioning pads 21 arranged longitudinally (corresponding to the number of drill bits). Each row of positioning pads 21 has a clamping cylinder 22 installed in the gap. The upper end of the clamping cylinder 22 is equipped with a longitudinal cylinder rod 4. Each row of positioning pads 21 has a positioning block 20 installed on the right end.

[0018] During operation, the four weight plate selection rods of the strength training machine to be processed are placed horizontally on the four rows of positioning pads 21 and close to the positioning block 20. The clamping cylinder 22 is started to tighten the cylinder pressure rod 4. The horizontal motor 1 is started, and through the cooperation of the horizontal screw 3 and the horizontal slide plate 5, and the horizontal slide plate 5 and the horizontal guide rail 2, the horizontal slide plate 5 is pulled to the right. When the center hole drilling head 19 reaches the top of the right end of the workpiece, the horizontal motor 1 stops.

[0019] The center hole feed motor 11 starts, and through the cooperation of the center hole screw 9 and the center hole guide rail 10, it pushes the center hole drilling head 19 downward. When the center hole drill bit approaches the first set of holes to be drilled on the workpiece, the center hole feed motor 11 switches to the working speed, and the center hole spindle motor 8 starts. Through the center hole gearbox 7, it drives the four center hole drill bits under the center hole drilling head 19 to drill the center holes of the pin holes on the top of the four workpieces. After that, the center hole spindle motor 8 stops, the center hole feed motor 11 reverses its rotation, pulls the center hole drilling head 19 back, and then starts the transverse motor 1 to pull the transverse slide plate 5 to continue to move to the right to enter the next work station.

[0020] When the drilling head 18 reaches the upper right end of the workpiece, the drilling feed motor 13 starts, and pushes the drilling head 18 downward through the cooperation of the drilling screw 14 and the drilling guide rail 15. When the drilling drill bit 18 approaches the center hole of the first set of holes to be drilled on the workpiece, the drilling feed motor 13 switches to the working feed speed, and the drilling spindle motor 16 starts. Through the drilling gearbox 17, it drives the four drilling drill bits under the drilling head 18 to perform deep drilling on the center holes of the four pin holes on the workpiece. After the hole is drilled through, the drilling spindle motor 16 stops, the drilling feed motor 13 reverses its rotation, and pulls the drilling head 18 back. The transverse motor 1 starts and pulls the transverse slide plate 5 to the right. The drilling head 18 and the center hole drilling head 19 enter the next station simultaneously to work. This cycle continues until all the holes on the workpiece are drilled.

Claims

1. A power builder weight plate selector rod drilling machine characterized by: in The front of the square worktable has two longitudinally arranged transverse guide rails, on which transverse slides are mounted. A transverse lead screw is mounted in the middle below the slides, and a transverse motor is mounted at the right end of the lead screw, fixed to the upper right side of the worktable. On the left side of the transverse slides is a drilling column. Behind the drilling column, on the left and right, are two vertical drilling guide rails, on which are mounted a rear-mounted drilling head. A vertical drilling lead screw is mounted in the middle in front of the drilling head, with a drilling feed motor mounted at the top of the lead screw, fixed to the top of the drilling column. A drilling gearbox is mounted above the drilling head, and a vertical drilling spindle motor is mounted above the gearbox. The drilling bit is mounted below the drilling head. The transverse slides... The right side is equipped with a square column for drilling a center hole. Behind the square column, on the left and right, are two vertical center hole guide rails. A rear-mounted center hole drilling head is mounted on the center hole guide rails. A vertical center hole lead screw is mounted in the middle in front of the center hole drilling head. A center hole feed motor is mounted on the upper end of the center hole lead screw. The center hole feed motor is fixed on the upper side of the square column for drilling a center hole. A center hole gearbox is mounted on the upper part of the center hole gearbox. A vertical center hole spindle motor is mounted on the upper part of the center hole drilling head. A center hole drill bit is mounted below the center hole drilling head. On the rear of the worktable, multiple rows of transverse positioning pads are arranged longitudinally. A clamping cylinder is installed in the gap of each row of positioning pads. A longitudinal cylinder pressure rod is mounted on the upper end of the clamping cylinder. A positioning block is installed on the right end of each row of positioning pads.

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