A vibration-proof support device for turning an elongated shaft

Abstract

The utility model relates to the technical field of slender shaft processing, and disclose a slender shaft turning anti -vibration support device, including shaft body clamping mechanism screw rod guide rail mechanism tool rest mechanism and resist column auxiliary fixing mechanism, the screw rod guide rail mechanism is located shaft body clamping mechanism both sides, the shaft body clamping mechanism includes three jaw chuck, the three catch chuck drives slender shaft high -speed rotation, the tool rest mechanism is through telescopic motor control tool on the processing depth of slender shaft, the tool rest is in the tool position processing side, utilize the slender shaft of tool rest upper and lower two sides fixed, absorb the vibration of slender shaft, reduce the phenomenon of vibrating knife, the telescopic motor provides power through telescopic and pulls spring clamping plate, the spring clamping plate rotatably connects with fixed clamping jaw, the spring clamping plate pulls fixed clamping jaw and does the action of tightening and loosening, the fixed clamping jaw tightens and supports slender shaft when, and absorbs the vibration of slender shaft, reduces the possibility of vibrating knife of slender shaft.

Description

Technical Field

[0001] This utility model relates to the field of slender shaft machining technology, specifically to a vibration-damping support device for slender shaft turning. Background Technology

[0002] Shaft machining is highly susceptible to chattering, which manifests as severe self-excited vibrations between the tool and workpiece. This leads to regular chatter marks on the machined surface, abnormal tool wear or even chipping, and ear-piercing noise, severely impacting machining accuracy, efficiency, and tool life. Vibration damping devices are a core solution to the vibration problem during the turning of slender shafts. These devices significantly increase the local stiffness of the workpiece and suppress bending deformation and chatter by providing dynamic and stable radial support near the cutting point.

[0003] Conventional solutions to the vibration problem in shaft machining mainly focus on the vibratory tool holder. However, for slender shafts that are longer and thinner, a simple vibratory tool holder is no longer sufficient to solve the problem. Conventional shaft machining does not address the issue of shaft fixation and support. Due to their slender characteristics, slender shafts require a certain degree of fixation and support. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a vibration damping support device for turning slender shafts.

[0005] This utility model provides the following technical solution: it includes a shaft clamping mechanism, a lead screw guide mechanism, a cutting tool mechanism, and a stop column auxiliary fixing mechanism. The lead screw guide mechanism is located on both sides of the shaft clamping mechanism, the cutting tool mechanism is located at the top of the lead screw guide mechanism, and the stop column auxiliary fixing mechanism is located at the end of the shaft clamping mechanism. The shaft clamping mechanism includes a stop column fixing frame, a stop column fixing seat is fixedly connected to the end of the stop column fixing frame, and a stop column is fixedly connected to the end of the stop column fixing seat.

[0006] As a further improvement to the above solution, the shaft clamping mechanism includes a chuck fixing frame, a three-jaw chuck fixedly connected to the front end of the chuck fixing frame, and a triangular chuck jaw slidably connected to the front end of the three-jaw chuck.

[0007] Through the above technical solution, the abutment fixes the end of the slender shaft and applies a certain pressure to reduce the vibration of the shaft caused by processing. The pressure applied by the abutment should not be too large, as excessive pressure will wear down the shaft. The three-jaw chuck fixes the slender shaft and drives the shaft to rotate at high speed.

[0008] As a further improvement to the above solution, the lead screw guide mechanism includes a first lead screw fixing frame, a first lead screw motor is fixedly connected to the front end of the first lead screw fixing frame, a first lead screw is fixedly connected to the end of the first lead screw motor, a first tool base is rotatably connected to the first lead screw, and four diagonally distributed first tool slides are fixedly connected to the bottom end of the first tool base.

[0009] As a further improvement to the above solution, the lead screw guide mechanism includes a second lead screw fixing frame, a second lead screw motor is fixedly connected to the front end of the second lead screw fixing frame, a second lead screw is fixedly connected to the end of the second lead screw motor, a second tool base is rotatably connected to the second lead screw, and four diagonally distributed second tool slides are fixedly connected to the bottom end of the second tool base.

[0010] As a further improvement to the above solution, the bottom end of the first tool slide is slidably connected to a first straight rail, and the two ends of the first straight rail are fixedly connected to limit blocks. The bottom end of the second tool slide is slidably connected to a second straight rail, and the two ends of the second straight rail are fixedly connected to limit blocks.

[0011] With the above technical solution, the first tool base is fixedly connected to a first lead screw and a first slide. The first lead screw motor drives the lead screw to rotate, causing it to slide on a first straight rail. The second tool base is fixedly connected to a second lead screw and a second slide. The second lead screw motor drives the lead screw to rotate, causing it to slide on a second straight rail. The limiting block is fixedly connected to both ends of the straight rail to prevent the slide from sliding out of the working position.

[0012] As a further improvement to the above solution, the tool mechanism includes a tool holder fixing seat, a first tool base is fixedly connected to the bottom end of the tool holder fixing seat, a first telescopic motor is fixedly connected to the top end of the tool holder fixing seat, and the first telescopic motor is fixedly connected to the tool holder.

[0013] As a further improvement to the above solution, the tool mechanism includes a tool fixing seat, a second tool base is fixedly connected to the bottom end of the tool fixing seat, a second telescopic motor is fixedly connected to the top end of the tool fixing seat, and a tool is fixedly connected to the second telescopic motor.

[0014] Through the above technical solution, the three-grip chuck drives the slender shaft to rotate at high speed, the tool controls the machining depth on the slender shaft through the telescopic motor, and the follower is located on the machining side of the tool position. The follower fixes the slender shaft on both the upper and lower sides to absorb the vibration of the slender shaft and reduce the vibration phenomenon.

[0015] As a further improvement to the above solution, the column-stopping auxiliary fixing mechanism includes four diagonally distributed fixing claws. The front end of each fixing claw is rotatably connected to a spring clamping plate, the front end of each spring clamping plate is rotatably connected to a motor fixing plate, and the end of each motor fixing plate is fixedly connected to a column-stopping telescopic motor.

[0016] Through the above technical solution, the telescopic motor provides power to pull the spring clamp plate by telescopic extension. The spring clamp plate is rotatably connected to a fixed clamp. The spring clamp plate pulls the fixed clamp to perform tightening and loosening actions. When the fixed clamp is tightened, it fixes and supports the slender shaft and absorbs the vibration of the slender shaft, reducing the possibility of the slender shaft vibrating.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] The abutment fixes the end of the slender shaft and applies a certain pressure to reduce vibration of the shaft due to processing. The pressure applied by the abutment should not be too large, as excessive pressure will wear down the shaft. The three-jaw chuck fixes the slender shaft and drives the shaft to rotate at high speed. The first tool base is fixedly connected to the first lead screw and the first slide. The first lead screw motor drives the lead screw to rotate, causing it to slide on the first straight rail. The second tool base is fixedly connected to the second lead screw and the second slide. The second lead screw motor drives the lead screw to rotate, causing it to slide on the second straight rail. The limiting block is fixedly connected to both ends of the straight rail to prevent the slide from sliding out of the working position.

[0019] The three-jaw chuck drives the slender shaft to rotate at high speed. The cutting tool controls the machining depth on the slender shaft through a telescopic motor. The follower tool holder is located on the machining side of the cutting tool position. The upper and lower surfaces of the follower tool holder fix the slender shaft, absorbing its vibration and reducing the vibration phenomenon. The telescopic motor provides power to pull the spring clamp plate through extension and retraction. The spring clamp plate is rotatably connected to a fixed jaw. The spring clamp plate pulls the fixed jaw to perform tightening and loosening actions. When the fixed jaw is tightened, it fixes and supports the slender shaft and absorbs its vibration, reducing the possibility of vibration on the slender shaft. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the lead screw guide mechanism of this utility model; Figure 4 This is a schematic diagram showing the position of the shaft clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the auxiliary fixing mechanism for the column of this utility model.

[0021] In the diagram: 1. Shaft clamping mechanism; 101. Support column fixing frame; 102. Support column fixing seat; 103. Support column; 104. Clamping plate fixing frame; 105. Three-jaw chuck; 106. Triangular chuck jaws; 2. Lead screw guide mechanism; 201. First lead screw fixing frame; 202. First lead screw motor; 203. First lead screw; 204. First tool base; 205. First tool slide; 206. Second lead screw fixing frame; 207. Second lead screw motor; 208. Second lead screw 209. Second tool base; 210. Second tool slide; 211. First straight rail; 212. Second straight rail; 213. Limiting block; 3. Tool mechanism; 301. Tool holder fixing seat; 302. First telescopic motor; 303. Tool holder; 304. Tool fixing seat; 305. Second telescopic motor; 306. Tool; 4. Auxiliary fixing mechanism for the support column; 401. Fixing claw; 402. Spring clamp; 403. Motor fixing plate; 404. Telescopic motor for the support column. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Please see Figure 1-5 The device includes a shaft clamping mechanism 1, a lead screw guide mechanism 2, a cutting tool mechanism 3, and a stop column auxiliary fixing mechanism 4. The lead screw guide mechanism 2 is located on both sides 1 of the shaft clamping mechanism, the cutting tool mechanism 3 is located at the top of the lead screw guide mechanism 2, and the stop column auxiliary fixing mechanism 4 is located at the end of the shaft clamping mechanism 1. The shaft clamping mechanism 1 includes a stop column fixing frame 101, a stop column fixing seat 102 is fixedly connected to the end of the stop column fixing frame 101, and a stop column 103 is fixedly connected to the end of the stop column fixing seat 102.

[0024] The shaft clamping mechanism 1 includes a chuck fixing frame 104, a three-jaw chuck 105 fixedly connected to the front end of the chuck fixing frame 104, and a triangular chuck jaw 106 slidably connected to the front end of the three-jaw chuck 105.

[0025] The lead screw guide mechanism 2 includes a first lead screw fixing frame 201, a first lead screw motor 202 is fixedly connected to the front end of the first lead screw fixing frame 201, a first lead screw 203 is fixedly connected to the end of the first lead screw motor 202, a first tool base 204 is rotatably connected to the first lead screw 203, and four diagonally distributed first tool slides 205 are fixedly connected to the bottom end of the first tool base 204.

[0026] The lead screw guide mechanism 2 includes a second lead screw fixing frame 206, a second lead screw motor 207 is fixedly connected to the front end of the second lead screw fixing frame 206, a second lead screw 208 is fixedly connected to the end of the second lead screw motor 207, a second tool base 209 is rotatably connected to the second lead screw 208, and four diagonally distributed second tool slides 210 are fixedly connected to the bottom end of the second tool base 209.

[0027] The bottom end of the first tool slide 205 is slidably connected to a first straight rail 211, and the two ends of the first straight rail 211 are fixedly connected to limit blocks 213. The bottom end of the second tool slide 210 is slidably connected to a second straight rail 212, and the two ends of the second straight rail 212 are fixedly connected to limit blocks 213.

[0028] The tool mechanism 3 includes a tool holder fixing seat 301, a first tool base 204 is fixedly connected to the bottom end of the tool holder fixing seat 301, a first telescopic motor 302 is fixedly connected to the top end of the tool holder fixing seat 301, and a tool holder 303 is fixedly connected to the first telescopic motor 302.

[0029] The cutting tool mechanism 3 includes a cutting tool holder 304, a second cutting tool base 209 is fixedly connected to the bottom end of the cutting tool holder 304, a second telescopic motor 305 is fixedly connected to the top end of the cutting tool holder 304, and a cutting tool 306 is fixedly connected to the second telescopic motor 305.

[0030] The column-stopping auxiliary fixing mechanism 4 includes four diagonally distributed fixing claws 401. The front end of each fixing claw 401 is rotatably connected to a spring clamping plate 402. The front end of each spring clamping plate 402 is rotatably connected to a motor fixing plate 403. The end of each motor fixing plate 403 is fixedly connected to a column-stopping telescopic motor 404.

[0031] The implementation principle of one embodiment of this application is as follows: a slender shaft is fixed by a three-jaw chuck jaw 106, and the three-jaw chuck 105 drives the three-jaw chuck jaw 106 and the slender shaft to rotate at high speed. A certain pressure is applied to the other end of the slender shaft by a stop post 103. The stop post telescopic motor 404 provides power by telescopic movement to pull the spring clamp 402. The spring clamp 402 is rotatably connected to a fixed clamp 401. The spring clamp 402 pulls the fixed clamp 401 to perform tightening and loosening actions. When the fixed clamp 401 is tightened, it fixes and supports the slender shaft and absorbs the vibration of the slender shaft. The cutter 306 is fixedly connected to the second telescopic motor 305. The second telescopic motor 305 is fixedly connected to... A second tool holder 209 is attached. The tool 306 is controlled by a second telescopic motor 305 to perform machining on a slender shaft. The second tool holder 209 is powered by a second lead screw motor 207. The second lead screw 208 drives the second tool slide 210 to achieve sliding engagement. A first telescopic motor 302 is fixedly connected to a tool holder 303. The first telescopic motor 302 is fixedly connected to a first tool holder 204. The tool holder 303 fixes the slender shaft by telescopic movement to absorb vibrations of the slender shaft. The first tool holder 204 is powered by a first lead screw motor 202. The first lead screw 203 drives the first tool slide 205 to achieve sliding engagement.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A vibration damping support device for turning slender shafts, characterized in that: It includes a shaft clamping mechanism (1), a lead screw guide mechanism (2), a cutting tool mechanism (3), and a post auxiliary fixing mechanism (4). The lead screw guide mechanism (2) is located on both sides of the shaft clamping mechanism (1), the cutting tool mechanism (3) is located at the top of the lead screw guide mechanism (2), and the post auxiliary fixing mechanism (4) is located at the end of the shaft clamping mechanism (1). The shaft clamping mechanism (1) includes a support column fixing frame (101), a support column fixing seat (102) is fixedly connected to the end of the support column fixing frame (101), and a support column (103) is fixedly connected to the end of the support column fixing seat (102).

2. The anti-vibration support device for turning slender shafts according to claim 1, characterized in that: The shaft clamping mechanism (1) includes a clamping plate fixing frame (104), a three-jaw chuck (105) is fixedly connected to the front end of the clamping plate fixing frame (104), and a triangular chuck jaw (106) is slidably connected to the front end of the three-jaw chuck (105).

3. The anti-vibration support device for turning slender shafts according to claim 1, characterized in that: The lead screw guide mechanism (2) includes a first lead screw fixing frame (201), a first lead screw motor (202) is fixedly connected to the front end of the first lead screw fixing frame (201), a first lead screw (203) is fixedly connected to the end of the first lead screw motor (202), a first tool base (204) is rotatably connected to the first lead screw (203), and four diagonally distributed first tool slides (205) are fixedly connected to the bottom end of the first tool base (204).

4. The anti-vibration support device for turning slender shafts according to claim 3, characterized in that: The lead screw guide mechanism (2) includes a second lead screw fixing frame (206), a second lead screw motor (207) is fixedly connected to the front end of the second lead screw fixing frame (206), a second lead screw (208) is fixedly connected to the end of the second lead screw motor (207), a second tool base (209) is rotatably connected to the second lead screw (208), and four diagonally distributed second tool slides (210) are fixedly connected to the bottom end of the second tool base (209).

5. The anti-vibration support device for turning slender shafts according to claim 4, characterized in that: The bottom end of the first tool slide (205) is slidably connected to a first straight rail (211), and the two ends of the first straight rail (211) are fixedly connected to limit blocks (213). The bottom end of the second tool slide (210) is slidably connected to a second straight rail (212), and the two ends of the second straight rail (212) are fixedly connected to limit blocks (213).

6. The anti-vibration support device for turning slender shafts according to claim 1, characterized in that: The tool mechanism (3) includes a tool holder fixing seat (301), the bottom end of which is fixedly connected to a first tool base (204), the top end of which is fixedly connected to a first telescopic motor (302), and the first telescopic motor (302) is fixedly connected to a tool holder (303).

7. The anti-vibration support device for turning slender shafts according to claim 3, characterized in that: The cutting tool mechanism (3) includes a cutting tool holder (304), a second cutting tool base (209) is fixedly connected to the bottom end of the cutting tool holder (304), a second telescopic motor (305) is fixedly connected to the top end of the cutting tool holder (304), and a cutting tool (306) is fixedly connected to the second telescopic motor (305).

8. The anti-vibration support device for turning slender shafts according to claim 1, characterized in that: The column-stopping auxiliary fixing mechanism (4) includes four diagonally distributed fixing claws (401). The front end of the fixing claws (401) is rotatably connected to a spring clamping plate (402). The front end of the spring clamping plate (402) is rotatably connected to a motor fixing plate (403). The end of the motor fixing plate (403) is fixedly connected to a column-stopping telescopic motor (404).

Images