Two-end grinding device for large-specification lead screw

Abstract

The two-end polishing device comprises a main machine frame, a driving mechanism is fixedly arranged on the main machine frame, the driving mechanism comprises a driving motor, a driving roller and a supporting idler wheel, the output end of the driving motor is connected with the driving roller, and the supporting idler wheel is located on one side of the driving roller. A grinding mechanism is arranged on one side of the main machine frame and comprises a longitudinal moving assembly and a transverse moving assembly, the moving direction of the longitudinal moving assembly is parallel to the axis of the lead screw, the moving direction of the transverse moving assembly intersects with the moving direction of the longitudinal moving assembly, and a grinding assembly is arranged on the transverse moving assembly. The equipment is easy to operate, workshop workers can quickly master the equipment, the grinding machines are arranged on the two sides of the equipment, shaft sides of the two ends of a large-specification lead screw shaft can be directly ground, grinding on one side and then grinding on the other side are not needed, time and labor are saved, meanwhile, a grinding wheel in the equipment can enter a spiral groove of the lead screw shaft for grinding, and the grinding efficiency is improved. The root of the spiral groove is prevented from missing treatment, and product performance and attractiveness are prevented from being affected.

Description

Technical Field

[0001] This utility model belongs to the field of large-size ball screw processing technology, and in particular relates to a grinding device for both ends of a large-size ball screw. Background Technology

[0002] Large-size ball screws consist of a screw shaft, nut, balls, support bearings, etc. They are mainly divided into internal circulation type and external circulation type, and have the functions of motion conversion, high-precision positioning, high load-bearing capacity and multiple installation methods.

[0003] Large-sized lead screw shafts require grinding after annealing. Due to their length and weight, these shafts typically have a diameter of at least 80mm and a length exceeding two meters. Existing small grinding machines are insufficient, requiring manual assistance for rotation, which is time-consuming and labor-intensive for technicians. Furthermore, the annealed portions of the lead screw shaft are located on both sides of the shaft end, necessitating manual reversal of the grinding direction. In addition to grinding the outer diameter of the lead screw shaft, deep grinding of the spiral grooves is also necessary.

[0004] Therefore, we need to design a grinding device for both ends of large-size lead screws to solve these problems. Utility Model Content

[0005] The problem to be solved by this utility model is to provide a grinding device for both ends of a large-size lead screw.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A grinding device for both ends of a large-size lead screw includes a main frame, on which a drive mechanism is fixedly mounted. The drive mechanism includes a drive motor, a drive roller, and a support roller. The output end of the drive motor is connected to the drive roller, and the support roller is located on one side of the drive roller. A grinding mechanism is provided on one side of the main frame. The grinding mechanism includes a longitudinal movement component and a transverse movement component. The movement direction of the longitudinal movement component is parallel to the lead screw axis, and the movement direction of the transverse movement component intersects the movement direction of the longitudinal movement component. A grinding component is provided on the transverse movement component, and a support component is provided on one side of the grinding component.

[0008] Preferably, the driving mechanism includes a mounting plate with two support plates fixedly mounted on it. The driving roller is located between the two support plates, and both ends of the driving roller are rotatably connected to the support plates. A driven pulley is fixedly mounted on one end of the driving roller. The driving motor is fixedly mounted on the mounting plate on one side of the driving roller, and a driving pulley is fixedly mounted on the output end of the driving motor. The driving pulley and the driven pulley are connected by a transmission belt. A fixed support is fixedly mounted on the mounting plate on the other side of the driving roller, and the support roller is rotatably mounted on the fixed support.

[0009] Furthermore, a top support cylinder is fixedly installed on the main frame, and the output end of the top support cylinder is connected to the mounting plate.

[0010] Preferably, the longitudinal movement component includes a support frame, on which a linear guide rail and a longitudinal thrust cylinder are fixedly mounted. A slide is slidably mounted on the linear guide rail, and the slide is connected to the output end of the longitudinal thrust cylinder.

[0011] Furthermore, the transverse component includes a guide rod and a transverse thrust cylinder fixedly mounted on the slide plate, a sliding frame slidably mounted on the guide rod, and the sliding frame is connected to the output end of the transverse thrust cylinder.

[0012] Furthermore, the polishing assembly includes an adjusting rail fixedly mounted on the sliding frame, a mounting bracket fixedly mounted on the adjusting rail, a polishing motor and a polishing wheel mounted on the mounting bracket, and the polishing wheel being connected to the output end of the polishing motor.

[0013] Furthermore, the support assembly includes a support rod, a carrier frame, and support bearings. The support rod is mounted on the support frame on one side of the grinding assembly. The carrier frame is fixedly mounted on the top of the support rod, and two support bearings are rotatably mounted on the carrier frame.

[0014] The output end of the grinding motor is connected to the grinding wheel via a connecting shaft.

[0015] The advantages and positive effects of this utility model are:

[0016] This utility model equipment is simple to operate and easy for workshop workers to quickly learn. The equipment has grinding machines on both sides, which can directly grind the axial sides of both ends of large-specification lead screw shafts without having to grind one side first and then the other side, saving time and effort. At the same time, the grinding wheel in this equipment can enter the spiral groove of the lead screw shaft for grinding, avoiding incomplete treatment at the root of the spiral groove, which would affect the product performance and appearance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the drive mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the grinding mechanism of this utility model. Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the grinding mechanism of this utility model. Figure 2 .

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Main frame; 2. Drive mechanism; 201. Mounting plate; 202. Support plate; 203. Drive roller; 204. Driven pulley; 205. Drive pulley; 206. Transmission belt; 207. Fixed support; 208. Support roller; 209. Drive motor; 210. Top support cylinder; 3. Grinding mechanism; 301. Support frame; 302. Linear guide rail; 303. Slide; 304. Horizontal push cylinder; 305. Guide rod; 306. Vertical push cylinder; 307. Sliding frame; 308. Adjusting rail; 309. Mounting frame; 310. Grinding wheel; 311. Connecting shaft; 312. Grinding motor; 4. Support assembly; 401. Support rod; 402. Bearing frame; 403. Support bearing; 5. Lead screw. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Example 1: As Figures 1-4 As shown, a grinding device for both ends of a large-size lead screw includes a main frame 1, on which a drive mechanism 2 is fixedly mounted. The drive mechanism 2 includes a drive motor 209, a drive roller 203, and a support roller 208. The output end of the drive motor 209 is connected to the drive roller 203, and the support roller 208 is located on one side of the drive roller 203. A grinding mechanism 3 is provided on one side of the main frame 1. The grinding mechanism 3 includes a longitudinal moving component and a transverse moving component. The moving direction of the longitudinal moving component is parallel to the axis of the lead screw 5, and the moving direction of the transverse moving component intersects with the moving direction of the longitudinal moving component. A grinding component is provided on the transverse moving component, and a support component 4 is provided on one side of the grinding component.

[0028] The drive mechanism 2 includes a mounting plate 201, on which two support plates 202 are fixedly mounted. A drive roller 203 is located between the two support plates 202, and both ends of the drive roller 203 are rotatably connected to the support plates 202. A driven pulley 204 is fixedly mounted on one end of the drive roller 203. A drive motor 209 is fixedly mounted on the mounting plate 201 on one side of the drive roller 203, and a drive pulley 205 is fixedly mounted on the output end of the drive motor 209. The drive pulley 205 and the driven pulley 204 are connected by a transmission belt 206. The diameter of the drive pulley 205 is smaller than the diameter of the driven pulley 204, so the drive pulley 205 drives the driven pulley through the transmission belt 206. After 204 rotates, the speed of the driven pulley 204 should be less than that of the driving pulley 205, generally between 100 and 500 RPM. A fixed support 207 is fixedly installed on the mounting plate 201 on the other side of the driving roller 203. The support roller 208 is rotatably installed on the fixed support 207. A top support cylinder 210 is fixedly installed on the main frame 1. The top support cylinder 210 is located below the table surface of the main frame 1, and the output end of the top support cylinder 210 passes through the table surface of the main frame 1 and is connected to the mounting plate 201. This can apply an upward thrust to the drive mechanism 2, which can ensure that the lead screw 5 and the drive roller 203 are closely fitted to ensure sufficient friction to drive the lead screw 5 to rotate.

[0029] The longitudinal movement assembly includes a support frame 301, on which a linear guide rail 302 and a longitudinal thrust cylinder 306 are fixedly mounted. A slide plate 303 is slidably mounted on the linear guide rail 302, and the slide plate 303 is connected to the output end of the longitudinal thrust cylinder 306.

[0030] The transverse assembly includes a guide rod 305 fixedly mounted on the slide plate 303 and a transverse thrust cylinder 304. A sliding frame 307 is slidably mounted on the guide rod 305, and the sliding frame 307 is connected to the output end of the transverse thrust cylinder 304.

[0031] The grinding assembly includes an adjusting rail 308 fixedly mounted on a sliding frame 307, a mounting frame 309 fixedly mounted on the adjusting rail 308, a grinding motor 312 and a grinding wheel 310 mounted on the mounting frame 309, and the grinding wheel 310 connected to the output end of the grinding motor 312.

[0032] The support assembly 4 includes a support rod 401, a bearing frame 402, and a support bearing 403. The support rod 401 is mounted on the support frame 301 on one side of the grinding assembly. The bearing frame 402 is fixedly mounted on the top of the support rod 401. Two support bearings 403 are rotatably mounted on the bearing frame 402.

[0033] The output end of the grinding motor 312 is connected to the grinding wheel 310 via the connecting shaft 311.

[0034] The working process of this embodiment is as follows: First, the lead screw 5 to be ground is placed on the support bearing 403 of the bearing frame 402. Then, the position of the grinding mechanism 3 is adjusted. The longitudinal push cylinder 306 drives the slide 303 to move along the linear guide rail 302. When the slide 303 moves, the grinding wheel 310 also moves. When the grinding wheel 310 moves to the end of the lead screw 5, the transverse push cylinder 304 drives the sliding frame 307 to move along the guide rod 305, so that the grinding wheel 310 moves closer to the lead screw 5. The transverse push cylinder 304 stops outputting when the grinding wheel 310 is in contact with the lead screw 5. It should be noted that before the grinding wheel 310 contacts the lead screw 5, the height of the grinding wheel 310 can be adjusted by the adjusting rail 308 so that the center of the grinding wheel 310 is aligned with the center of the lead screw 5.

[0035] After grinding preparation is complete, the drive motor 209 is started. The start of the drive motor 209 drives the drive pulley 205 to rotate, which in turn drives the transmission belt 206 to rotate. The driven pulley 204 is connected to the drive pulley 205 via the transmission belt 206. Therefore, the rotation of the transmission belt 206 drives the driven pulley 204 to rotate, which in turn drives the drive roller 203 to rotate. This causes the top support cylinder 210 to extend, pushing the mounting plate 201 upwards, bringing the drive roller 203 and support roller 208 into contact with the lead screw 5. 203 will drive the lead screw 5 to rotate, and the rotation of the lead screw 5 will also drive the support roller 208 to rotate. Then, the grinding motor 312 will start, and the speed of the grinding motor 312 is 2000~3000 RPM. After the grinding motor 312 starts, it will drive the grinding wheel 310 to rotate through the connecting shaft 311. The grinding wheel 310 will grind the lead screw 5. At the same time, the longitudinal push cylinder 306 will begin to slowly shorten, driving the slide 303 to move closer to the drive mechanism 2 along the linear guide rail 302. As the slide 303 moves continuously, the surface of the lead screw 5 can be ground.

[0036] To improve the polishing effect, the longitudinal push cylinder 306 will gradually and slowly extend after shortening to its limit position, pushing the slide 303 away from the drive mechanism 2. This reciprocating motion can repeatedly polish the surface of the lead screw 5 through the polishing wheel 310. When the polishing is completed, the longitudinal push cylinder 306 will extend, and at the same time the transverse push cylinder 304 will shorten, driving the slide 303 and the sliding frame 307 to move to a safe position, so that the polishing wheel 310 is separated from the lead screw 5.

[0037] During the grinding process, in order to prevent the grinding wheel 310 from getting stuck with the lead screw 5, the connecting shaft 311 can disconnect the grinding motor 312 from the grinding wheel 310, thus avoiding overload and burnout of the grinding motor 312.

[0038] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A grinding device for both ends of a large-size lead screw, comprising a main frame (1), characterized in that: A drive mechanism (2) is fixedly installed on the main frame (1). The drive mechanism (2) includes a drive motor (209), a drive roller (203), and a support roller (208). The output end of the drive motor (209) is connected to the drive roller (203), and the support roller (208) is located on one side of the drive roller (203). A grinding mechanism (3) is installed on one side of the main frame (1). The grinding mechanism (3) includes a longitudinal moving component and a transverse moving component. The moving direction of the longitudinal moving component is parallel to the axis of the lead screw (5). The moving direction of the transverse moving component intersects with the moving direction of the longitudinal moving component. A grinding component is installed on the transverse moving component, and a support component (4) is installed on one side of the grinding component.

2. The grinding device for both ends of a large-size lead screw according to claim 1, characterized in that: The driving mechanism (2) includes a mounting plate (201), on which two support plates (202) are fixedly mounted. The driving roller (203) is located between the two support plates (202), and both ends of the driving roller (203) are rotatably connected to the support plates (202). One end of the driving roller (203) is fixedly mounted with a driven pulley (204). The driving motor (209) is fixedly mounted on the mounting plate (201) on one side of the driving roller (203), and the output end of the driving motor (209) is fixedly mounted with a driving pulley (205). The driving pulley (205) and the driven pulley (204) are connected by a transmission belt (206). A fixed support (207) is fixedly mounted on the mounting plate (201) on the other side of the driving roller (203), and the support roller (208) is rotatably mounted on the fixed support (207).

3. The grinding device for both ends of a large-size lead screw according to claim 1, characterized in that: The longitudinal movement assembly includes a support frame (301), on which a linear guide rail (302) and a longitudinal thrust cylinder (306) are fixedly mounted. A slide plate (303) is slidably mounted on the linear guide rail (302), and the slide plate (303) is connected to the output end of the longitudinal thrust cylinder (306).

4. A grinding device for both ends of a large-size lead screw according to claim 2, characterized in that: A top support cylinder (210) is fixedly installed on the main frame (1), and the output end of the top support cylinder (210) is connected to the mounting plate (201).

5. A grinding device for both ends of a large-size lead screw according to claim 3, characterized in that: The transverse component includes a guide rod (305) and a transverse thrust cylinder (304) fixedly mounted on the slide plate (303). A sliding frame (307) is slidably mounted on the guide rod (305), and the sliding frame (307) is connected to the output end of the transverse thrust cylinder (304).

6. A grinding device for both ends of a large-size lead screw according to claim 5, characterized in that: The polishing assembly includes an adjustment rail (308) fixedly mounted on the sliding frame (307), a mounting bracket (309) fixedly mounted on the adjustment rail (308), a polishing motor (312) and a polishing wheel (310) mounted on the mounting bracket (309), and the polishing wheel (310) being connected to the output end of the polishing motor (312).

7. A grinding device for both ends of a large-size lead screw according to claim 6, characterized in that: The support assembly (4) includes a support rod (401), a support frame (402), and a support bearing (403). The support rod (401) is mounted on the support frame (301) on one side of the grinding assembly. The support frame (402) is fixedly mounted on the top of the support rod (401). Two support bearings (403) are rotatably mounted on the support frame (402).

8. A grinding device for both ends of a large-size lead screw according to claim 6, characterized in that: The output end of the grinding motor (312) is connected to the grinding wheel (310) via a connecting shaft (311).

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