Lifting platform for replacing disc milling cutter

Abstract

The invention discloses a lifting platform for replacing a disc milling cutter, and relates to the technical field of numerical control gear milling machines. The device comprises a disc milling cutter spindle box, a disc milling cutter, a cutter placement frame, a bracket, a linear rail, a ball screw, a screw nut seat, a linear rail sliding block, a linear rail clamp, a bearing seat, an adjustable fastening handle, a lifting platform, an angular contact bearing, a small space ring, a large space ring, a worktable and a bearing gland, and the screw rod nut seat is fixed on the lifting platform through a screw. When the disc milling cutter is replaced, the lifting platform is used, and the problems that the disc milling cutter is heavy, the disc milling cutter and a center hole of a spindle box of the disc milling cutter are not prone to being concentric, and time and labor are wasted during replacement are solved. Industrial accidents caused by improper operation are avoided, and meanwhile time for assisting tools is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of numerically controlled gear milling machines, and in particular relates to a lifting platform for replacing a disc milling cutter. Background Art

[0002] CNC gear milling machines are mainly used for cylindrical gear processing. Their processing efficiency is 3-6 times that of traditional gear shaping or gear hobbing. CNC gear milling machines have the characteristics of high precision, high speed, high efficiency, and wide applicability. Especially when replacing disc milling cutters, the disc milling cutter is relatively heavy, and it is not easy to make the disc milling cutter and the center hole of the disc milling cutter spindle box concentric. Replacement is time-consuming and labor-intensive. For this reason, we provide a lifting platform for replacing disc milling cutters to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a lifting platform for replacing a disc milling cutter to solve the problems raised in the above background technology.

[0004] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0005] The present invention is a lifting platform for replacing a disc milling cutter, comprising a disc milling cutter spindle box, a disc milling tool, a cutter disc placement rack, a bracket, a linear rail, a ball screw, a screw nut seat, a linear rail slider, a linear rail clamp, a bearing seat, an adjustable locking handle, a lifting platform, an angular contact bearing, a small spacer, a large spacer, a workbench and a bearing cover. The lifting platform is placed on the workbench, the screw nut seat is fixed to the lifting platform with screws, the bearing seat is installed on one side of the lifting platform, and the ball screw is threadedly connected to the screw nut seat.

[0006] The present invention is further configured such that after the angular contact bearing is installed on the ball screw, the angular contact bearing and the ball screw are installed together in the bearing seat, the tightness of the inner and outer rings of the two angular contact bearings are adjusted using small spacers and large spacers, the bearing pressure cover presses the outer ring of the angular contact bearing, and a gap of 0.02-0.03mm is left to prevent the bearing from heating up when rotating, and the adjustable locking handle is installed on the ball screw.

[0007] The present invention is further configured such that the cutter disc placement frame is fixed to the bracket with screws, the bracket is connected to the linear rail slider, the linear rail is fixed to the lifting platform with screws, and a linear rail clamp is installed below the linear rail slider.

[0008] The present invention is further configured such that the lifting platform is placed directly below the disc milling cutter spindle box, the disc milling cutter is installed on the cutter disc placement rack, and the adjustable locking handle is rotated to drive the ball screw cutter disc placement rack to move up and down, thereby ensuring that the disc milling cutter and the disc milling cutter spindle box center are concentric, and the linear rail clamp locks the linear rail to prevent the disc milling cutter from shaking back and forth, at which time the disc milling cutter can be replaced.

[0009] The present invention has the following beneficial effects: when replacing the disc milling cutter, the present invention uses a lifting platform, which solves the problem that the disc milling cutter is relatively heavy, it is not easy to make the disc milling cutter and the center hole of the disc milling cutter spindle box concentric, and the replacement is time-consuming and labor-intensive. Compared with the prior art, when replacing the disc milling cutter, the present invention does not need to manually carry the disc milling cutter, thus avoiding work-related accidents caused by improper operation and saving the time of auxiliary tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0011] Figure 1 A schematic diagram of a lifting platform for replacing a disc milling cutter.

[0012] Figure 2 The figure is a schematic diagram of the internal structure of a lifting platform for replacing a disc milling cutter.

[0013] Figure 3 The present invention is a top view of a bracket in a lifting platform for replacing a disc milling cutter.

[0014] Figure 4 The present invention is a front view of a bracket in a lifting platform for replacing a disc milling cutter.

[0015] Figure 5 The present invention is a connection diagram of a ball screw and a screw nut seat in a lifting platform for replacing a disc milling cutter.

[0016] Figure 6 A schematic diagram of a bearing seat in a lifting platform for replacing a disc milling cutter.

[0017] Figure 7 The present invention is a three-dimensional diagram of a lifting platform for replacing a disc milling cutter.

[0018] Figure 8 A rear view of a lifting platform for replacing a disc milling cutter.

[0019] Fig. 9 The exploded schematic diagram of a lifting platform structure for replacing a disc milling cutter.

[0020] In the attached figure: 1. Disc milling cutter spindle box; 2. Disc milling tool; 3. Cutter disc placement rack; 4. Bracket; 5. Linear rail; 6. Ball screw; 7. Screw nut seat; 8. Linear rail slider; 9. Linear rail clamp; 10. Bearing seat; 11. Adjustable locking handle; 12. Lifting platform; 13. Angular contact bearing; 14. Small spacer; 15. Large spacer; 16. Workbench: 17. Bearing cover. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Example

[0023] See also Figure 1-9 The present invention is a lifting platform for replacing a disc milling cutter, comprising a disc milling cutter spindle box 1, a disc milling tool 2, a cutter disc placement frame 3, a bracket 4, a linear rail 5, a ball screw 6, a screw nut seat 7, a linear rail slider 8, a linear rail clamp 9, a bearing seat 10, an adjustable locking handle 11, a lifting platform 12, an angular contact bearing 13, a small spacer 14, a large spacer 15, a workbench 16 and a bearing cover 17; the lifting platform 12 is placed on the workbench 16, the screw nut seat 7 is fixed to the lifting platform 12 with screws, the bearing seat 10 is connected to the lifting platform 12, and the ball screw 6 is fixed to the screw nut seat 7 with screws.

[0024] Install the angular contact bearing 13 onto the ball screw 6, and install the angular contact bearing 13 and the ball screw 6 into the bearing seat 10 together. Use the small spacer 14 and the large spacer 15 to adjust the tightness of the inner and outer rings of the two angular contact bearings 13. The bearing cover 17 presses the outer ring of the angular contact bearing 13 and leaves a gap of 0.02-0.03mm to prevent the bearing from heating up when rotating. Install the adjustable locking handle 11 onto the ball screw 6.

[0025] The cutter head placement frame 3 is fixed to the bracket 4 with screws, the bracket 4 is connected to the linear rail slider 8, the linear rail 5 is fixed to the lifting platform 12 with screws, and the linear rail clamp 9 is installed below the linear rail slider 8.

[0026] The lifting platform 12 is placed directly below the disc milling cutter spindle box 1, the disc milling tool 2 is installed on the cutter disc placement frame 3, and the adjustable locking handle 11 is turned. The ball screw 6 finally drives the cutter disc placement frame 3 to move up and down to ensure that the disc milling tool 2 and the disc milling cutter spindle box 1 are concentric. The linear rail clamp 9 locks the linear rail 5 to prevent the cutter disc from shaking back and forth. At this time, the disc milling cutter can be replaced.

[0027] like Figure 6 As shown, it is a schematic diagram of the structure of the bearing seat 10, the ball screw 6 cooperates with the inner ring of the angular contact bearing 13, and the outer ring of the angular contact bearing 13 cooperates with the bearing seat 10. The tightness of the bearing is adjusted by the small spacer 14 and the large spacer 15 respectively, and the outer ring of the angular contact bearing 13 is pressed by the bearing cover 17, and a fitting clearance of 0.02-0.03mm is left to prevent heat. Finally, the adjustable locking handle 11 is fixed to the ball screw 6.

[0028] like Figure 4 and Figure 5As shown, it is a schematic diagram of the lifting mechanism. The adjustable locking handle 11 is rotated to drive the ball screw 6 to rotate, and the ball screw 6 drives the screw nut seat 7 to move up and down through the linear rail slider 8. When it reaches the appropriate position, the linear rail clamp 9 is used to lock the linear rail 5.

[0029] The standard parts used in the present invention can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a control unit. The control circuit of the control unit can be realized by simple programming by technicians in this field, which is common knowledge in this field, so the control method and circuit connection are not explained in detail in the present invention.

[0030] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can better understand and utilize the present invention.

Claims

1. A lifting platform for replacing a disc milling cutter, comprising a disc milling cutter spindle box (1), a disc milling cutter (2), a cutter disc placement frame (3), a bracket (4), a linear rail (5), a ball screw (6), a screw nut seat (7), a linear rail slider (8), a linear rail clamp (9), a bearing seat (10), an adjustable locking handle (11), a lifting platform (12), an angular contact bearing (13), a small spacer (14), a large spacer (15), a workbench (16) and a bearing gland (17), characterized in that: The lifting platform (12) is placed on a workbench (16), the screw nut seat (7) is fixed to the lifting platform (12) with screws, the bearing seat (10) is installed on one side of the lifting platform (12), and the ball screw (6) is threadedly connected to the screw nut seat (7).

2. A lifting platform for replacing a disc milling cutter according to claim 1, characterized in that: After the angular contact bearing (13) is installed on the ball screw (6), the angular contact bearing (13) and the ball screw (6) are installed together in the bearing seat (10), and the tightness of the inner and outer rings of the two angular contact bearings (13) is adjusted by using a small spacer (14) and a large spacer (15). The bearing pressure cover (17) presses the outer ring of the angular contact bearing (13) and leaves a gap of 0.02-0.03 mm to prevent the bearing from heating up when rotating. The adjustable locking handle (11) is installed on the ball screw (6).

3. The lifting platform for replacing a disc milling cutter according to claim 1, characterized in that: The cutter disc placement frame (3) is fixed to the bracket (4) with screws, the bracket (4) is connected to the linear rail slider (8), the linear rail (5) is fixed to the lifting platform (12) with screws, and a linear rail clamp (9) is installed below the linear rail slider (8).

4. The lifting platform for replacing a disc milling cutter according to claim 1, characterized in that: The lifting platform (12) is placed directly below the disc milling cutter spindle box (1), and the disc milling tool (2) is installed on the cutter disc placement frame (3). The adjustable locking handle (11) is rotated to drive the ball screw (6) and the cutter disc placement frame (3) to move up and down, ensuring that the disc milling tool (2) and the disc milling cutter spindle box (1) are concentric. The linear rail clamp (9) locks the linear rail (5) to prevent the disc milling tool (2) from shaking back and forth. At this time, the disc milling tool (2) can be replaced.

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