Cutter collision prevention structure of numerical control milling machine
By designing an anti-collision tool structure on a CNC milling machine, and utilizing a braking device consisting of a stop block, a rotary wheel, and a tension spring, along with a motor-driven table descent, the problem of milling cutter impact is solved, thus protecting both the milling cutter and the workpiece and reducing maintenance costs.
Patent Information
- Application Number
- CN202423234596.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-26
AI Technical Summary
During the machining process of a CNC milling machine, the milling cutter is prone to impacting the milling machine or workpiece due to excessive speed, resulting in damage to the milling cutter and the workpiece, and increasing maintenance costs.
An anti-collision tool structure was designed, including a braking device and an adjustment component. Through the cooperation of a stop block, a rotating wheel and a tension spring, the milling cutter can be automatically braked when it impacts the workpiece to avoid further damage. The worktable is driven to descend by a motor to prevent further contact between the milling cutter and the workpiece or the worktable.
It effectively protects the milling cutter and workpiece, extends their service life, reduces maintenance costs, and minimizes production losses.
Smart Images
Figure CN223718387U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control milling machine technical field especially relates to a numerical control milling machine anti -collision sword structure. BACKGROUND
[0002] Numerical control milling machine is also called CNC, which is a milling machine controlled by digital signals. Numerical control milling machine is an automatic processing equipment developed on the basis of general milling machine. The processing technology of the two is basically the same, and the structure is also similar. Numerical control milling machine is divided into two categories: without tool magazine and with tool magazine. The numerical control milling machine with tool magazine is also called machining center.
[0003] When the numerical control milling machine processes workpieces, the milling cutter often moves too fast and directly hits the milling machine or the workpiece, which not only damages the milling cutter, reduces the service life of the milling cutter, increases the maintenance cost, but also easily destroys the processed workpiece and increases the production cost. To solve this technical problem, the present application provides a numerical control milling machine anti-collision sword structure. UTILITARIAN CONTENT
[0004] The utility model discloses a numerical control milling machine anti-collision sword structure, which can avoid the milling cutter from moving too fast and hitting the milling machine or the workpiece. When the milling cutter hits the workbench, the brake device will stop working immediately, avoiding damage to the milling cutter and increasing the maintenance cost.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A numerical control milling machine anti-collision sword structure includes a milling machine body, the upper end middle part of the milling machine body is connected with a workbench through an adjusting assembly, the upper end left and right sides of the milling machine body are fixedly connected with supports, the left and right sides of the inside of the support are fixedly connected with slide rods, the outer wall of the slide rod is slidably connected with a support plate, the middle part of the support plate is installed with a tool holder, the inside of the tool holder is installed with a brake device, and the lower end of the tool holder is installed with a milling cutter.
[0007] Further, the adjusting assembly includes a motor fixedly connected to the front side of the upper end of the milling machine body, the driving end of the motor is fixedly connected with a bidirectional screw rod, the front and rear sides of the outer wall of the bidirectional screw rod are both threadedly connected with slide blocks, the upper end middle part of the milling machine body is fixedly connected with a slide rail, and the lower part of the slide block is slidably connected in the inside of the slide rail.
[0008] Further, the left and right ends of the slide block are both fixedly connected with fixed rods, the end part of the fixed rod is rotatably connected with a connecting rod, the upper end of the connecting rod is rotatably connected with a fixed lug, and the lower part of the fixed lug is fixedly connected to the lower part of the workbench.
[0009] Further, the brake device comprises rotating shafts fixedly connected to the left and right sides of the interior of the tool holder, L-shaped rods rotationally connected to the outer walls of the rotating shafts, and rotating wheels rotationally connected to the upper sides of the opposite ends of the L-shaped rods.
[0010] Further, the brake device further comprises brake buttons slidingly connected to the left and right ends of the lower side of the tool holder, and pull springs installed in the interiors of the brake buttons and fixedly connected to the lower ends of the L-shaped rods.
[0011] Further, the upper end of the milling cutter is fixedly connected with an abutting block, the outer wall of the abutting block is slidingly connected to the interior of the tool holder, a second spring is installed on the upper end of the abutting block, and the upper end of the second spring is fixedly connected to the upper side of the interior of the tool holder.
[0012] Further, the upper part of the bracket is fixedly connected with hydraulic rods on the left and right sides, and the driving ends of the hydraulic rods are connected to the upper part of the supporting plate.
[0013] Further, the lower end of the sliding rod is externally installed with a first spring, and the lower end of the first spring is fixedly connected to the lower end of the interior of the bracket.
[0014] The utility model has the advantages of the following beneficial effects:
[0015] 1. In the utility model, the abutting block on the upper part of the milling cutter can slide, so that when the milling cutter hits the workbench, the abutting block slides upward, drives the rotating wheel and the L-shaped rod to rotate, further drives the pull spring fixed to the lower end of the L-shaped rod to be pulled, so that the brake button is pressed, the operation of the milling cutter is stopped, further damage to the milling cutter is avoided, the first spring arranged on the lower part of the sliding rod can avoid the milling cutter from falling too fast and hitting the workpiece, causing damage to the workpiece or the milling cutter, and the maintenance cost is increased.
[0016] 2. In the utility model, after the brake button is pressed, the motor is started, the driving end of the motor drives the bidirectional screw rod to rotate, the sliding block connected to the bidirectional screw rod moves in opposite directions, drives the connecting rod to rotate on the fixed rod, further drives the workbench to fall, avoids the milling cutter from hitting the workbench, effectively protects the milling cutter main body and the device, and prolongs the service life. DRAWINGS
[0017] Fig. 1 It is a whole schematic view of the anti-collision cutter structure of the numerical control milling machine.
[0018] Fig. 2 It is a sectional schematic view of the anti-collision cutter structure of the numerical control milling machine.
[0019] Fig. 3 It is a brake device schematic view of the anti-collision cutter structure of the numerical control milling machine.
[0020] Legend:
[0021] 1, milling machine main body; 2, support; 3, support plate; 4, hydraulic rod; 5, tool holder; 6, milling cutter; 7, workbench; 8, slide rod; 9, first spring; 10, motor; 11, bidirectional screw; 12, sliding block; 13, fixed rod; 14, connecting rod; 15, fixed lug; 16, second spring; 17, block; 18, L-shaped rod; 19, runner; 20, rotating shaft; 21, tension spring; 22, brake button. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] Reference Figs. 1-3 An embodiment provided by the present application: a numerical control milling machine anti-collision tool structure, comprising a milling machine main body 1, the upper end of the milling machine main body 1 is fixedly connected with supports 2 on the left and right sides, the inner sides of the left and right sides of the supports 2 are fixedly connected with slide rods 8, the lower end of the slide rods 8 is externally installed with first springs 9, the lower end of the first springs 9 is fixedly connected to the inner lower end of the supports 2, the outer wall of the slide rods 8 is slidingly connected with support plates 3, the upper parts of the left and right sides of the supports 2 are fixedly connected with hydraulic rods 4, the driving end of the hydraulic rods 4 is connected to the upper part of the support plates 3, the middle part of the support plates 3 is installed with tool holders 5, the inner left and right sides of the tool holders 5 are fixedly connected with rotating shafts 20, the outer wall of the rotating shafts 20 is rotatably connected with L-shaped rods 18, the upper side of one end of the L-shaped rods 18 is rotatably connected with runners 19, the lower left and right ends of the tool holders 5 are slidingly connected with brake buttons 22, the inner part of the brake buttons 22 is installed with tension springs 21, the end of the tension springs 21 is fixedly connected to the lower end of the L-shaped rods 18, the lower end of the tool holders 5 is installed with milling cutters 6, the upper end of the milling cutters 6 is fixedly connected with blocks 17, the outer wall of the blocks 17 is slidingly connected in the inner part of the tool holders 5, the upper end of the blocks 17 is installed with second springs 16, the upper end of the second springs 16 is fixedly connected to the inner upper side of the tool holders 5.
[0024] Specifically, the hydraulic rod 4 is started, the driving end of the hydraulic rod 4 drives the support plate 3, the tool seat 5 and the milling cutter 6 to slide downward, when the support plate 3 slides to the lower side, the force of the first spring 9 outside the sliding rod 8 can reduce the speed of the support plate 3, and further slow down the speed of the milling cutter 6, reduce the probability of collision between the milling cutter 6 and the workpiece, and even if the milling cutter 6 collides with the workpiece or the workbench 7, the block 17 at the upper end of the milling cutter 6 will extrude the second spring 16 under the impact of the force, and the block 17 will extrude the rotating wheel 19 upward, and further drive the L-shaped rod 18 to rotate around the rotating shaft 20, so that the L-shaped rod 18 pulls the lower end of the tension spring 21, and the tension spring 21 pulls the brake button 22, so that the hydraulic rod 4 stops, and the milling cutter 6 no longer descends, avoiding further damage and affecting the use time of the device, and when the milling cutter 6 is working normally, the second spring 16 will not trigger the brake.
[0025] Referring to Figs. 1-3 The upper end of the milling machine body 1 is fixedly connected with a motor 10, the driving end of the motor 10 is fixedly connected with a bidirectional screw rod 11, the front and rear outer walls of the bidirectional screw rod 11 are both threadedly connected with sliding blocks 12, the upper end of the milling machine body 1 is fixedly connected with sliding rails, the lower part of the sliding blocks 12 is slidably connected in the inside of the sliding rails, the left and right ends of the sliding blocks 12 are both fixedly connected with fixed rods 13, the end of the fixed rods 13 is rotatably connected with connecting rods 14, the upper end of the connecting rods 14 is rotatably connected with fixed ears 15, the upper part of the fixed ears 15 is fixedly connected with a workbench 7, and the end of the workbench 7 is slidably connected to the upper part of the milling machine body 1.
[0026] Specifically, after triggering the brake, the motor 10 is started, the driving end of the motor 10 drives the bidirectional screw rod 11 to rotate, the rotation of the bidirectional screw rod 11 drives the sliding blocks 12 to move in opposite directions, the movement of the sliding blocks 12 drives the fixed rods 13 to move, and further drives the connecting rods 14 to rotate around the fixed rods 13, so that the other end of the connecting rods 14 is lowered, thereby lowering the workbench 7, avoiding the milling cutter 6 and the workbench 7 continuing to contact, reducing the damage probability of the milling cutter 6 and the workbench 7, and improving the use time of the device.
[0027] Working principle: when the workpiece is milled, start the hydraulic rod 4, the driving end of the hydraulic rod 4 drives the support plate 3 to slide down, and then drives the tool holder 5 and the milling cutter 6 to move down, the first spring 9 outside the slide rod 8 can reduce the falling rate of the milling cutter 6 before the milling cutter 6 contacts the workpiece, and the probability of collision between the milling cutter 6 and the workpiece is reduced, if collision occurs, the abutment 17 on the upper end of the milling cutter 6 will slide up, extruding the rotating wheel 19, the rotating wheel 19 will drive the L-shaped rod 18 to rotate around the rotating shaft 20, the lower end of the L-shaped rod 18 will pull the tension spring 21, and the tension spring 21 will pull the brake button 22, at this time, the hydraulic rod 4 will stop working, and the motor 10 will start, the driving end of the motor 10 drives the bidirectional screw rod 11 to rotate, and then drives the sliding block 12 and the fixed rod 13 to slide away from each other, the fixed rod 13 drives the connecting rod 14 to rotate, so that the workbench 7 is lowered, avoiding the workpiece from continuing to contact the milling cutter 6, reducing the damage probability of the workpiece and the milling cutter 6, and improving the durability of the device.
[0028] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A collision-resistant tool structure for a CNC milling machine, characterized in that, Including milling machine main body (1), the upper end middle part of the milling machine main body (1) is connected with the workbench (7) through the adjusting assembly, the upper end left and right sides of the milling machine main body (1) are fixedly connected with the support (2), the left and right sides inside of the support (2) are fixedly connected with the slide rod (8), the outer wall of the slide rod (8) is slidably connected with the support plate (3), the middle part of the support plate (3) is provided with the tool holder (5), the inside of the tool holder (5) is provided with the brake device, and the lower end of the tool holder (5) is provided with the milling cutter (6).
2. The anti-collision tool structure of a CNC milling machine according to claim 1, wherein: The adjusting assembly includes a motor (10) fixedly connected to the front side of the upper end of the milling machine main body (1), a drive end of the motor (10) is fixedly connected with a bidirectional screw rod (11), the front and rear sides of the outer wall of the bidirectional screw rod (11) are both threadedly connected with a sliding block (12), and the upper end middle part of the milling machine main body (1) is fixedly connected with a slide rail, and the lower part of the sliding block (12) is slidably connected inside the slide rail.
3. The anti-collision tool structure of a CNC milling machine according to claim 2, characterized in that: The left and right ends of the sliding block (12) are both fixedly connected with a fixed rod (13), the end of the fixed rod (13) is rotatably connected with a connecting rod (14), the upper end of the connecting rod (14) is rotatably connected with a fixed lug (15), and the upper part of the fixed lug (15) is fixedly connected to the lower part of the workbench (7).
4. The anti-collision tool structure of a CNC milling machine according to claim 1, wherein: The brake device includes a rotating shaft (20) fixedly connected to the inside left and right sides of the tool holder (5), and the outer wall of the rotating shaft (20) is rotatably connected with an L-shaped rod (18), and the upper side opposite end of the L-shaped rod (18) is rotatably connected with a rotating wheel (19).
5. The anti-collision tool structure of the numerical control milling machine according to claim 1, characterized in that: The brake device further includes a brake button (22) slidably connected to the left and right ends of the lower side of the tool holder (5), a tension spring (21) is mounted in the inside of the brake button (22), and the end of the tension spring (21) is fixedly connected to the lower end of the L-shaped rod (18).
6. The anti-collision tool structure of a CNC milling machine according to claim 1, characterized in that: The upper end of the milling cutter (6) is fixedly connected with an abutting block (17), the outer wall of the abutting block (17) is slidably connected in the inside of the tool holder (5), a second spring (16) is mounted on the upper end of the abutting block (17), and the upper end of the second spring (16) is fixedly connected to the inside upper side of the tool holder (5).
7. The anti-collision tool structure of a CNC milling machine according to claim 1, characterized in that: The upper part of the left and right sides of the support (2) is fixedly connected with a hydraulic rod (4), and the drive end of the hydraulic rod (4) is connected to the upper part of the support plate (3).
8. The anti-collision tool structure of a CNC milling machine according to claim 1, wherein: The lower end of the outer wall of the slide rod (8) is provided with a first spring (9), and the lower end of the first spring (9) is fixedly connected to the inside lower end of the support (2).