Three-ton counterbalanced fork truck pedestal gland face milling and chamfering special machine

Abstract

A specialized milling and chamfering machine for three-ton counterbalanced forklift support covers features a transverse guide rail, slide plate, and lead screw at the rear of the worktable, with a tooling seat on the slide plate. On the front left side of the worktable are a longitudinal cylinder and a positioning block; to the right of the cylinder is a square column, behind which are vertical guide rails, slide plates, and lead screws, with a milling head behind the slide plate; to the right of the square column are milling longitudinal guide rails, slide plates, and milling heads; to the right of the milling guide rails are chamfering longitudinal guide rails, with chamfering longitudinal slide plates and lead screws on them; to the chamfering longitudinal slide plates are transverse vertical plates, behind which are two vertical guide rails, vertical slide plates, and vertical lead screws; behind the vertical slide plates is a chamfering plate, with transverse guide rails, transverse slide plates, and transverse lead screws on the transverse guide rails, and two chamfering heads arranged side-by-side on the transverse slide plates. This machine solves the problems of cumbersome operation and low efficiency in processing three-ton counterbalanced forklift support covers using ordinary machine tools, making it suitable for forklift manufacturing companies.

Description

Technical Field

[0001] This utility model relates to the field of drilling and tapping machinery and equipment, specifically a special machine tool for milling and chamfering the concave arc surface and mounting surface of the support cover of a three-ton counterbalanced forklift. Background Technology

[0002] The three-ton counterbalance forklift support cover (referred to as the workpiece) is a semi-circular ring-shaped component with outwardly extending flat mounting seats at both ends. In order to achieve a tight fit between the components, it is necessary to mill the concave arc surface of the workpiece and the bottom surface of the mounting seat, and to chamfer the included angle between the concave arc surface and the bottom surface of the mounting seat. The traditional processing method is to use three ordinary machine tools to clamp the workpiece three times for milling and chamfering. Its disadvantages are that the operation is complicated and the work efficiency is low. Utility Model Content

[0003] This utility model addresses the problem of cumbersome operation and low work efficiency in processing three-ton counterbalanced forklift support caps using ordinary machine tools, by providing a machine tool that integrates milling and chamfering for processing three-ton counterbalanced forklift support caps.

[0004] The technical solution of this utility model is a special machine for milling and chamfering the bearing cap of a three-ton counterbalanced forklift. Its special feature is that two transverse guide rails arranged in a front-to-back pattern are installed at the rear of the horizontal worktable. A transverse slide is installed on the transverse guide rails, and a matching transverse lead screw is installed under the transverse slide. A transverse lead screw motor is installed at the right end of the transverse lead screw, and the transverse lead screw motor is fixed to the right side of the worktable. A tooling seat is installed in the middle of the transverse slide, and vertical clamping cylinders are installed on the left and right sides of the tooling seat respectively. A longitudinal cylinder is mounted on the left front of the worktable, and a positioning block is mounted on the rear cylinder rod of the longitudinal cylinder; a square column is mounted on the right side of the worktable, and two milling arc vertical guide rails are mounted on the left and right sides behind the square column. A milling arc vertical slide is mounted on the milling arc vertical guide rails, and a matching milling arc vertical screw is mounted in the middle in front of the milling arc vertical slide. A milling arc screw motor is mounted on the upper end of the milling arc vertical screw, and the milling arc screw motor is fixed to the top of the square column. A milling arc head is mounted behind the milling arc vertical slide. On the right side of the square column, there are two milling longitudinal guide rails arranged left and right. Milling longitudinal slides are mounted on the milling longitudinal guide rails. A matching milling longitudinal lead screw is mounted under the milling longitudinal slide. A milling lead screw motor is mounted at the front end of the milling longitudinal lead screw. The milling lead screw motor is fixed to the front of the worktable. A milling head is mounted on the top of the milling longitudinal slide. A matching milling head motor is mounted on the top of the milling head. The milling longitudinal guide rail has two chamfered longitudinal guide rails arranged side by side on the right side of the worktable. Chamfered longitudinal slides are mounted on the chamfered longitudinal guide rails, and a matching chamfered longitudinal lead screw is mounted below the chamfered longitudinal lead screw. A chamfered longitudinal motor is mounted at the front end of the chamfered longitudinal lead screw and is fixed to the front of the worktable. A chamfered longitudinal slide plate is mounted on top of a chamfered transverse vertical plate. Behind the chamfered transverse vertical plate, two chamfered vertical guide rails are mounted in rows on the left and right. A chamfered vertical slide plate is mounted on the chamfered vertical guide rails. A chamfered vertical screw is mounted in the center of the front of the chamfered vertical slide plate. A chamfered vertical motor is mounted at the upper end of the chamfered vertical screw and is fixed to the upper edge of the chamfered transverse vertical plate. Behind the chamfering vertical slide plate is a rear-mounted chamfering plate. Two chamfering horizontal guide rails are mounted in the front and rear rows on the chamfering horizontal guide rails. The chamfering horizontal slide plate is mounted on the chamfering horizontal guide rails. A matching chamfering horizontal lead screw is mounted in the middle under the chamfering horizontal slide plate. A chamfering horizontal motor is mounted on the right end of the chamfering horizontal lead screw. The chamfering horizontal motor is fixed to the right side of the chamfering plate. Two chamfering heads are mounted on the chamfering horizontal slide plate, arranged left and right. A chamfering head motor is located in front of the chamfering head.

[0005] During operation, place the horizontal sliding plate on the left side of the worktable, place the workpiece on the fixture (with the concave arc facing forward), start the longitudinal cylinder to push the positioning block backward, so that the positioning block presses against the workpiece, start the vertical clamping cylinder to press the workpiece, and the longitudinal cylinder pulls the positioning block to reset.

[0006] When the horizontal lead screw motor starts, it pulls the horizontal slide plate, tooling seat, and workpiece to the right through the horizontal lead screw and horizontal guide rail, stopping below the milling head. Then, the milling lead screw motor starts, pushing the milling vertical slide plate, milling head, and milling motor downwards through the milling vertical lead screw and milling vertical guide rail. When they reach the work position, the milling lead screw motor switches to the working speed, and the milling motor starts, driving the milling head to mill the concave arc surface of the workpiece from top to bottom. After milling is completed, the milling motor stops, and the milling lead screw motor reverses direction to pull the milling vertical slide plate, milling head, and milling motor back to their original positions.

[0007] Simultaneously, the transverse lead screw motor starts, pulling the transverse slide, tooling seat, and workpiece to continue moving to the right until they stop behind the milling head. The milling lead screw motor starts, and through the cooperation of the milling longitudinal lead screw and milling longitudinal guide rail, it pushes the milling longitudinal slide, milling head, and milling head motor to move backward until they stop at the work station. The milling head motor starts, driving the milling head to mill the two mounting surfaces of the workpiece. After milling is completed, the milling head motor stops, and the milling lead screw motor reverses direction and starts, pulling the milling longitudinal slide, milling head, and milling head motor to reset.

[0008] The horizontal lead screw motor restarts, pulling the horizontal slide plate, fixture, and workpiece to continue moving to the right until they stop behind the chamfering head. The chamfering longitudinal motor starts, using the chamfering longitudinal guide rail and lead screw to push the chamfering longitudinal slide plate backward until it reaches the workstation. The chamfering vertical motor starts, using the chamfering vertical lead screw and guide rail to push the chamfering vertical slide plate downward until it reaches the workstation. The chamfering horizontal motor starts, using the chamfering horizontal lead screw and guide rail to push and pull the chamfering horizontal slide plate left and right until the two chamfering heads stop at the two included angles between the inner arc and the mounting surface. The two chamfering head motors then start to drive the chamfering heads to chamfer. After chamfering is complete, the chamfering longitudinal motor reverses direction and starts, pulling the chamfering longitudinal slide plate back to its original position.

[0009] The technical advantage of this invention is that, by adopting the above-mentioned technical solution, a three-ton counterbalanced forklift support cover processing machine tool can be realized, which is convenient to operate and has extremely high working efficiency. It can continuously complete three processes of arc milling, surface milling, and chamfering by clamping and fixing the workpiece in one go, which not only reduces the trouble of clamping and disassembling the workpiece, but also speeds up the production speed. Attached Figure Description

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

[0011] In the diagram, 1 is a chamfered horizontal motor, 2 is a chamfered horizontal guide rail, 3 is a chamfered vertical motor, 4 is a chamfered machine head, 5 is a chamfered vertical slide plate, 6 is a chamfered machine head motor, 7 is a chamfered horizontal upright plate, 8 is a chamfered vertical guide rail, 9 is a chamfered vertical lead screw, 10 is a chamfered vertical motor, 11 is a milling lead screw motor, 12 is a milling machine head, 13 is a milling machine head motor, 14 is a milling arc vertical lead screw, 15 is a milling arc vertical slide plate, 16 is a square column, 17 is a milling arc lead screw motor, 18 is a milling arc motor, 19 is a milling arc machine head, and 2 is a chamfered vertical motor. 0. Longitudinal cylinder, 21. Positioning block, 22. Workpiece, 23. Vertical clamping cylinder, 24. Horizontal slide plate, 25. Tooling seat, 26. Worktable, 27. Horizontal guide rail, 28. Horizontal lead screw, 29. Arc milling vertical guide rail, 30. Surface milling longitudinal guide rail, 31. Surface milling longitudinal lead screw, 32. Surface milling longitudinal slide plate, 33. Chamfered longitudinal guide rail, 34. Chamfered longitudinal lead screw, 35. Horizontal lead screw motor, 36. Chamfered plate, 37. Chamfered horizontal slide plate, 38. Chamfered horizontal lead screw, 39. Chamfered longitudinal slide plate. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] As shown in the figure, two horizontal guide rails 27 arranged in a front-to-back pattern are installed on the rear of the horizontal worktable 26. A horizontal slide plate 24 is installed on the horizontal guide rails 27. A matching horizontal lead screw 28 is installed under the horizontal slide plate 24. A horizontal lead screw motor 35 is installed at the right end of the horizontal lead screw 28. The horizontal lead screw motor 35 is fixed to the right side of the worktable 26. A tooling seat 25 is installed in the middle of the horizontal slide plate 24. Vertical clamping cylinders 23 are installed on the left and right sides of the tooling seat 25, respectively. A longitudinal cylinder 20 is mounted on the left front side of the worktable 26. A positioning block 21 is mounted on the rear cylinder rod of the longitudinal cylinder 20. A square column 16 is mounted on the right side of the worktable 26. Two milling arc vertical guide rails 29 are mounted on the left and right sides behind the square column 16. A milling arc vertical slide plate 15 is mounted on the milling arc vertical guide rails 29. A matching milling arc vertical screw 14 is mounted in the middle in front of the milling arc vertical slide plate 15. A milling arc screw motor 17 is mounted on the upper end of the milling arc vertical screw 14. The milling arc screw motor 17 is fixed to the top of the square column 16. A milling arc head 19 is mounted behind the milling arc vertical slide plate 15. Two milling longitudinal guide rails 30 arranged horizontally are mounted on the worktable 26 on the right side of the square column 16. A milling longitudinal slide plate 32 is mounted on the milling longitudinal guide rails 30. A matching milling longitudinal lead screw 31 is mounted below the milling longitudinal slide plate 32. A milling lead screw motor 11 is mounted at the front end of the milling longitudinal lead screw 31. The milling lead screw motor 11 is fixed to the front of the worktable 26. A milling head 12 is mounted on the top of the milling longitudinal slide plate 32. A matching milling head motor 13 is mounted on the top of the milling head 12. Two chamfered longitudinal guides 33 arranged side-by-side are mounted on the right worktable 26 of the milling longitudinal guide 30. A chamfered longitudinal slide plate 39 is mounted on the chamfered longitudinal guide 33. A matching chamfered longitudinal lead screw 34 is mounted under the chamfered longitudinal lead screw 34. A chamfered longitudinal motor 3 is mounted at the front end of the chamfered longitudinal lead screw 34. The chamfered longitudinal motor 3 is fixed to the front of the worktable 26. A chamfered longitudinal slide plate 39 is mounted on a chamfered transverse vertical plate 7. Behind the chamfered transverse vertical plate 7, two chamfered vertical guide rails 8 are arranged in rows on the left and right. A chamfered vertical slide plate 5 is mounted on the chamfered vertical guide rails 8. A chamfered vertical screw 9 is mounted in the middle of the front of the chamfered vertical slide plate 5. A chamfered vertical motor 10 is mounted at the upper end of the chamfered vertical screw 9. The chamfered vertical motor 10 is fixed to the upper side of the chamfered transverse vertical plate 7. Behind the chamfering vertical slide plate 5 is a rear-mounted chamfering plate 36. Two chamfering horizontal guide rails 2 are mounted in front and behind the chamfering plate 36. A chamfering horizontal slide plate 37 is mounted on the chamfering horizontal guide rails 2. A matching chamfering horizontal screw 38 is mounted in the middle below the chamfering horizontal slide plate 37. A chamfering horizontal motor 1 is mounted on the right end of the chamfering horizontal screw 38. The chamfering horizontal motor 1 is fixed to the right side of the chamfering plate 36. Two chamfering heads 4 are mounted on the chamfering horizontal slide plate 37, arranged left and right. A chamfering head motor 6 is mounted in front of the chamfering head 4.

[0014] During operation, place the horizontal slide plate 24 on the left side of the worktable 26, place the workpiece 22 (concave arc facing forward) on the fixture 25, start the longitudinal cylinder 20 to push the positioning block 21 backward, so that the positioning block 21 presses against the workpiece 22, start the vertical clamping cylinder 23 to press the workpiece 22, and the longitudinal cylinder 20 pulls the positioning block 21 to reset.

[0015] When the horizontal lead screw motor 35 starts, it pulls the horizontal slide plate 24, the tooling seat 25, and the workpiece 22 to the right through the cooperation of the horizontal lead screw 28 and the horizontal guide rail 27, stopping below the milling head 19. Then, the milling lead screw motor 17 starts, and pushes the milling vertical slide plate 15, the milling head 19, and the milling motor 18 downward through the cooperation of the milling vertical lead screw 14 and the milling vertical guide rail 29. When they reach the work position, the milling lead screw motor 17 switches to the working speed, and the milling motor 18 starts, driving the milling head 19 to mill the concave arc surface of the workpiece 22 from top to bottom. After the milling is completed, the milling motor 18 stops, and the milling lead screw motor 17 reverses direction to pull the milling vertical slide plate 15, the milling head 19, and the milling motor 18 back to their original positions.

[0016] Simultaneously, the transverse lead screw motor 35 starts, pulling the transverse slide plate 24, tooling seat 25, and workpiece 22 to continue moving to the right, stopping behind the milling head 12. The milling lead screw motor 11 starts, and through the cooperation of the milling longitudinal lead screw 31 and the milling longitudinal guide rail 30, pushes the milling longitudinal slide plate 32, milling head 12, and milling head motor 13 to move backward, stopping when they reach the work station. The milling head motor 13 starts, driving the milling head 12 to mill the two mounting bottom surfaces of the workpiece 22. After milling is completed, the milling head motor 13 stops, and the milling lead screw motor 11 reverses direction and starts, pulling the milling longitudinal slide plate 32, milling head 12, and milling head motor 13 back to their original positions.

[0017] The horizontal lead screw motor 35 starts again, pulling the horizontal slide plate 24, tooling seat 25, and workpiece 22 to continue moving to the right, stopping behind the chamfering head 4. The chamfering longitudinal motor 3 starts, and through the cooperation of the chamfering longitudinal guide rail 33 and the chamfering longitudinal lead screw 34, pushes the chamfering longitudinal slide plate 39 to move backward, stopping when it reaches the work station. The chamfering vertical motor 10 starts, and through the cooperation of the chamfering vertical lead screw 9 and the chamfering vertical guide rail 8, pushes the chamfering vertical slide plate 5 to move downward, stopping when it reaches the work station. The chamfering horizontal motor 1 starts, and through the cooperation of the chamfering horizontal lead screw 38 and the chamfering horizontal guide rail 2, pushes and pulls the chamfering horizontal slide plate 37 to move left and right, stopping when the two chamfering heads 4 correspond to the two included angles between the inner arc and the mounting surface. The two chamfering head motors 6 start to drive the chamfering head 4 to chamfer. After the chamfering is completed, the chamfering longitudinal motor 3 starts in reverse direction, pulling the chamfering longitudinal slide plate 39 to reset.

Claims

1. A special machine for milling and chamfering the bearing cap of a three-ton counterbalanced forklift, characterized in that: in The rear of the horizontal worktable is equipped with two longitudinally arranged transverse guide rails. A transverse slide plate is mounted on the transverse guide rails, and a matching transverse lead screw is mounted below the slide plate. A transverse lead screw motor is mounted on the right end of the lead screw, which is fixed to the right side of the worktable. A fixture seat is mounted in the middle of the transverse slide plate, with vertical clamping cylinders mounted on either side of the fixture seat. A longitudinal cylinder is mounted on the left front of the worktable, with a positioning block mounted on the rear cylinder rod. A square column is mounted on the right side of the worktable, and two milling arc vertical guide rails are mounted in rows behind the column. A milling arc vertical slide is mounted on the vertical guide rail. A matching milling arc vertical lead screw is mounted in the middle of the front of the milling arc vertical slide. A milling arc lead screw motor is mounted at the upper end of the milling arc vertical lead screw, which is fixed to the top of the square column. A milling arc head is mounted behind the milling arc vertical slide. Two milling surface longitudinal guide rails arranged horizontally are mounted on the worktable to the right of the square column. A milling surface longitudinal slide is mounted on the milling surface longitudinal guide rail. A matching milling surface longitudinal lead screw is mounted below the milling surface longitudinal slide. A milling surface lead screw motor is mounted at the front end of the milling surface longitudinal lead screw, which is fixed to the front of the worktable. A milling surface longitudinal slide is mounted on top of the milling surface longitudinal slide. The machine has a milling head with a matching milling head motor. On the right side of the milling longitudinal guide rail, two chamfering longitudinal guide rails are arranged horizontally. Chamfering longitudinal slides are mounted on these guide rails, and a matching chamfering longitudinal lead screw is mounted below each slide. A chamfering longitudinal motor is mounted at the front end of the lead screw and is fixed to the front of the worktable. A chamfering transverse vertical plate is mounted on the chamfering longitudinal slide. Behind the transverse vertical plate, two chamfering vertical guide rails are arranged horizontally, and chamfering vertical slides are mounted on these guide rails. A chamfering vertical slide is mounted in the center of the front of the chamfering vertical slide. The chamfering vertical screw has a chamfering vertical motor mounted on its upper end. The chamfering vertical motor is fixed to the upper side of the chamfering horizontal vertical plate. A rear-mounted chamfering plate is mounted behind the chamfering vertical slide plate. Two chamfering horizontal guide rails are mounted in front and behind the chamfering plate. A chamfering horizontal slide plate is mounted on the chamfering horizontal guide rails. A matching chamfering horizontal screw is mounted in the middle below the chamfering horizontal slide plate. A chamfering horizontal motor is mounted on the right end of the chamfering horizontal screw. The chamfering horizontal motor is fixed to the right side of the chamfering plate. Two chamfering heads are mounted on the chamfering horizontal slide plate, arranged left and right. A chamfering head motor is mounted in front of each chamfering head.

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