A device for processing a taper chamfer of a spline tooth surface

Abstract

The utility model belongs to chamfering technical field, concretely is a kind of spline tooth face taper chamfering device, including the loading assembly of the core component of installable device, chamfering assembly is provided in loading assembly top, and chamfering assembly lower is provided with the main positioning assembly of the fixed mode corresponding to it according to workpiece type selection, and the vice positioning assembly of the workpiece needed rotation that can be driven is provided in main positioning assembly side.The utility model is convenient to set up the abutting member of the mode that the top rod, positioning cylinder etc. are formed on the follow-up frame that can be transverse and rotate, so that the device can be connected with the top block of top rod and driving shaft respectively, and the shaft workpiece is stably contacted in the way of top center, accurate positioning is realized, and after the transverse and rotation of top rod, the top block connected with driving shaft is cooperated by each anti-drop block, so that disc workpiece with central hole can be fully positioned, thereby the adaptability and processing reliability of the device to different types and sizes of workpieces are significantly improved.

Description

Technical Field

[0001] This utility model belongs to the field of chamfering technology, specifically relating to a device for chamfering a spline tooth surface tapered chamfer. Background Technology

[0002] The spline tooth surface tapered chamfering machine is a specialized piece of equipment used in the machining of gears and transmission components. It is primarily used to machine specific tapered chamfers on both sides of splines to facilitate assembly and improve product quality, performance, and reliability.

[0003] Chinese patent document CN222176204U discloses a device for machining the tapered chamfer of the spline tooth surface of a synchronizer. It has a hinged adjusting arm driven by a cylinder in the positioning column, so that the adjusting arm with anti-slip rubber can slide along the track by the sliding wheel to clamp the workpiece, and a spring connected to the adjusting arm provides a restoring force.

[0004] However, in the existing technology, the clamping structure positioning method of the chamfering processing device is simple, and it may not be able to accurately clamp other workpieces of the same type but with different dimensions or shaft workpieces. Therefore, a spline tooth surface tapered chamfering processing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a device for processing conical chamfering on spline tooth surfaces.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A spline tooth surface tapered chamfering processing device includes a loading assembly on which the core component of the device can be installed. Above the loading assembly is a chamfering assembly that can chamfer the workpiece as needed. Below the chamfering assembly is a main positioning assembly that can be fixed to the workpiece in a corresponding way according to the type of the workpiece. On one side of the main positioning assembly is a secondary positioning assembly that can drive the workpiece to rotate as needed.

[0008] The main positioning component includes a translation component that can adapt to the positioning needs of workpieces of different sizes, an abutment component that can contact different parts of the workpiece to complete the positioning according to the type of workpiece, a positioning workpiece that can make the abutment component more stable, and a rotating component that completes the chamfering process.

[0009] The rotating component includes a follower frame;

[0010] The abutment includes a top rod movably installed in one side of the follower frame, a limiting rod fixedly connected to the top rod and passing through it, a positioning cylinder fixedly connected to one side of the top rod, multiple abutment blocks movably connected to the positioning cylinder, an anti-slip pad fixedly installed on the outer surface of the abutment block, and an anti-detachment block located in the positioning cylinder fixedly connected to the side of the abutment block away from the anti-slip pad;

[0011] The secondary positioning assembly includes a drive shaft located on one side of the push rod;

[0012] The abutment also includes a top block that is fixedly connected to the push rod and the side of the drive shaft that are close to each other.

[0013] Preferably, the translation component includes a carrier plate mounted on the loading assembly, a slide table movably mounted on one side of the carrier plate, an insert rod movably connected below the slide table, an anti-detachment cap threaded to the upper end of the insert rod, and a horizontally placed hydraulic cylinder fixedly connected to one side of the slide table.

[0014] Preferably, the rotating component includes a follower frame movably mounted on one side of the slide table, with multiple limit blocks fixedly installed inside the follower frame, and insertion holes integrally formed inside the follower frame.

[0015] Preferably, the follower frame is provided with a guide groove that matches the limit rod, and the positioning cylinder is slidably connected to the abutment block.

[0016] Preferably, the push rod and the positioning cylinder are coaxial with the drive shaft, and multiple abutment blocks are arranged at equal angular intervals around the axis of the positioning cylinder. The radial outer side of the abutment block has an arc-shaped contact surface, which is a concave arc surface.

[0017] Preferably, the carrier plate is provided with a limiting groove that matches the insertion rod, and both the slide and the insertion rod are slidably connected to the carrier plate, with the slide and the insertion rod being slidably connected.

[0018] Preferably, the slide is rotatably connected to the follower frame, and the insertion hole matches the top block.

[0019] The beneficial effects of this utility model are as follows: by setting abutment members composed of push rods, positioning cylinders, etc. on the follower frame that can move laterally and rotate, this device can not only achieve precise positioning by using the push blocks connected to the push rods and the drive shaft to stably contact shaft-type workpieces in a centering manner, but also, after the push rod moves laterally and rotates, the synergistic effect of the anti-detachment blocks and the push blocks connected to the drive shaft can fully position disc-type workpieces with central openings, thereby significantly improving the adaptability and processing reliability of the device for workpieces of different types and sizes. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the spline tooth surface conical chamfering processing device described in this utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the spline tooth surface conical chamfering processing device described in this utility model;

[0023] Figure 3 yes Figure 1 A schematic diagram of the structure of some components from another perspective;

[0024] Figure 4 yes Figure 3 A schematic diagram of the structure of some components from another perspective;

[0025] Figure 5 yes Figure 1 A schematic diagram of some of the component structures.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Loading assembly; 101. Base; 102. Worktable; 2. Chamfering assembly; 201. Linear guide rail; 202. Slide; 203. Stand; 204. Vertical hydraulic cylinder; 205. Frame; 206. Rack; 207. Assembly frame; 208. First drive unit; 209. Gear; 210. Second drive unit; 211. Connector; 212. Chamfering scraper; 3. Main positioning assembly; 301. Carrier plate; 302. 303. Slide table; 304. Insert rod; 305. Anti-detachment cap; 306. Horizontal hydraulic cylinder; 307. Follower frame; 308. Limit block; 309. Insertion hole; 310. Top rod; 311. Limit rod; 312. Positioning cylinder; 313. Abutment block; 314. Anti-slip pad; 315. Top block; 4. Secondary positioning assembly; 401. Bracket; 402. Drive shaft; 403. Third drive unit; 404. Coupling. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0031] like Figures 1-5 As shown, a spline tooth surface conical chamfering processing device includes a loading assembly 1 on which the core components of the device can be installed. Above the loading assembly 1 is a chamfering assembly 2 that can chamfer the workpiece as needed. Below the chamfering assembly 2 is a main positioning assembly 3 that can be fixed to the workpiece in a corresponding way according to the type of workpiece. On one side of the main positioning assembly 3 is a secondary positioning assembly 4 that can drive the workpiece to rotate as needed.

[0032] In this embodiment: the loading component 1 includes a base 101, and a workbench 102 is fixedly installed on the base 101;

[0033] The base 101 provides an installation position for the worktable 102, linear guide 201, etc. The worktable 102 with T-shaped grooves allows the carrier plate 301 to be fixed on the worktable 102 at a position that meets the processing requirements by means of external fasteners such as bolts that can be inserted into its positioning holes.

[0034] In this embodiment: the chamfering assembly 2 includes linear guide rails 201 fixedly installed on both sides of the base 101. The linear guide rails 201 include slides 202 movably connected to them. A stand 203 is fixedly installed on the slides 202. A vertical hydraulic cylinder 204 is fixedly installed inside the stand 203. A frame 205 is fixedly connected between the telescopic ends of the two vertical hydraulic cylinders 204. A rack 206 is fixedly connected to the front side of the frame 205. A combination frame 207 is movably installed on the frame 205. A first drive unit 208 is fixedly installed on the combination frame 207. A gear 209 is fixedly connected to the output end of the first drive unit 208. A second drive unit 210 is also provided on the combination frame 207. A connector 211 is fixedly connected to the output end of the second drive unit 210. A chamfering scraper 212 is provided below the connector 211.

[0035] The linear guide 201 is slidably connected to the slide 202, the upright 203 and the combined frame 207 are slidably connected to the frame 205, the rack 206 is meshed with the gear 209, and the chamfering scraper 212 is a tool that can be conjugate with the spline of the workpiece and whose tooth shape has been specially modified. It has a cutting edge on the tooth tip for scraping the edge of the tooth root of the workpiece, or a cutting edge at the bottom of the tooth groove for scraping the edge of the tooth tip of the workpiece.

[0036] The longitudinal position of the combined frame 207 can be precisely adjusted by the movement of the slide 202 along the linear guide 201 and its associated slide 202. The height of the combined frame 207 can be precisely adjusted by the vertical hydraulic cylinder 204 driving the frame 205 to rise and fall along the upright frame 203. The lateral position of the combined frame 207 can be precisely adjusted by the gear 209, which rotates relative to the rack 206 due to the operation of the first drive unit 208, allowing for lateral movement on the frame 205. These structures collectively ensure the precise displacement of the combined frame 207 along the XYZ axes, thereby achieving precise adjustment of the position of the chamfering scraper 212. The rotation of the output end of the second drive unit 210 is transmitted to the chamfering scraper 212 via a quick-release connector 211, making the chamfering scraper 212 easy to install and remove. The first drive unit 208... 8. Both the second drive unit 210 and the third drive unit 403 can be composed of servo motors, reducers, etc., to stably drive the rotation of their respective connected components. Each drive unit can achieve precise phase control through encoders, controllers, etc., and thus achieve complex synchronous motion according to processing needs. In addition, the chamfering scraper 212, which is installed on the cross axis of the spline of the workpiece, can rotate together with the workpiece in a gear-like structure during the meshing process. With its special cutting edge that only contacts the edge of the workpiece tooth profile, it can precisely remove small amounts of material by scraping, thereby forming a uniform conical chamfer on the workpiece. This is a mature existing technology in this field. Those skilled in this field can customize and replace the chamfering scraper 212 according to spline parameters, tool requirements, etc., which is not an innovation of this application and will not be described in detail.

[0037] In this embodiment: the main positioning component 3 includes a translation component that can adapt to the positioning needs of workpieces of different sizes, an abutment component that can contact different parts of the workpiece according to its type to complete the positioning, a positioning workpiece that can make the abutment component more stable, and a rotating component that completes the chamfering process.

[0038] The translation component includes a carrier plate 301 mounted on the loading assembly 1. A slide table 302 is movably mounted on one side of the carrier plate 301. An insert rod 303 is movably connected below the slide table 302. An anti-detachment cap 304 is threaded onto the upper end of the insert rod 303. A horizontally positioned hydraulic cylinder 305 is fixedly connected to one side of the slide table 302. The rotating component includes a follower frame 306 movably mounted on one side of the slide table 302. Multiple limit blocks 307 are fixedly mounted inside the follower frame 306. An insertion hole 308 is integrally formed inside the follower frame 306. The abutment component includes a component movably mounted on the follower frame 302. A top rod 309 is located on one side of the frame 306. A limiting rod 310 is fixedly connected to the top rod 309 and passes through it. A positioning cylinder 311 is fixedly connected to one side of the top rod 309. Multiple abutment blocks 312 are movably connected to the positioning cylinder 311. An anti-slip pad 313 is fixedly installed on the outer surface of the abutment block 312. An anti-detachment block 314 located inside the positioning cylinder 311 is fixedly connected to the side of the abutment block 312 away from the anti-slip pad 313. The abutment also includes a top block 315 that is fixedly connected to the top rod 309 and the drive shaft 402 on the side that are close to each other.

[0039] The carrier plate 301 is provided with a limiting groove that matches the insertion rod 303. The slide table 302 and the insertion rod 303 are slidably connected to the carrier plate 301. The slide table 302 is slidably connected to the insertion rod 303. The slide table 302 is rotatably connected to the follower frame 306. The insertion hole 308 matches the top block 315. The follower frame 306 is provided with a guide groove that matches the limiting rod 310. The positioning cylinder 311 is slidably connected to the abutment block 312. The top rod 309 and the positioning cylinder 311 are coaxial with the drive shaft 402. Multiple abutment blocks 312 are arranged at equal angular intervals around the axis of the positioning cylinder 311. The radially outer side of the abutment block 312 has an arc-shaped contact surface, which is a concave arc surface.

[0040] A carrier plate 301, which can be fixed at a specific position on the worktable 102, provides an installation position for the slide table 302, the horizontal hydraulic cylinder 305, the bracket 401, etc. The slide table 302, which is limited by the carrier plate 301, the insert rod 303, the anti-detachment cap 304, and the horizontal hydraulic cylinder 305, and can slide along the length of the carrier plate 301 due to the operation of the horizontal hydraulic cylinder 305, installs the follower frame 306, allowing it to rotate under external force. A limit rod 310 installs the top rod 309 on the follower frame 306, allowing it to slide relative to the follower frame 306 and rotate relative to the follower frame 306 around the axis of the limit rod 310. After contacting the positioning cylinder 311, the limiting block 307 restricts the top rod 309 from rotating relative to the follower frame 306 around the axis of the limiting rod 310. Similarly, after the insertion hole 308 contacts the top block 315 connected to the top rod 309, it can also restrict the top rod 309 from rotating relative to the follower frame 306 around the axis of the limiting rod 310. Through the expansion positioning structure composed of multiple abutment blocks 312, anti-slip pads 313, and anti-detachment blocks 314 that can slide radially along the positioning cylinder 311, when a disc-shaped workpiece with a central opening is sleeved on the positioning cylinder 311, it is positioned by the full contact between each abutment block 312, anti-slip pad 313 and the workpiece.

[0041] In this embodiment: the secondary positioning component 4 includes a bracket 401 fixedly installed on one side of the carrier plate 301, a drive shaft 402 fixedly installed on the side of the bracket 401 near the slide table 302, a third drive unit 403 fixedly installed on the other side of the bracket 401, and a coupling 404 provided between the output end of the third drive unit 403 and the drive shaft 402.

[0042] The bracket 401 is rotatably connected to the drive shaft 402. The drive shaft 402 and the third drive unit 403 are installed through the bracket 401. The rotation of the output end of the third drive unit 403 is transmitted through the coupling 404 and the drive shaft 402.

[0043] Working principle: When this device is installed for the conical chamfering of spline tooth surfaces, if the workpiece is a shaft part, then when the limiting block 307 is in contact with the positioning cylinder 311, after one end of the workpiece is in contact with the center of the top block 315 connected to the drive shaft 402, the operation of the horizontal hydraulic cylinder 305 will cause the other end of the workpiece to contact the center of the top block 315 connected to the top rod 309, thereby completing the fixation of the workpiece.

[0044] If the workpiece is a disc-shaped workpiece with a central hole, after the horizontal pull rod 309 separates the limiting block 307 from the positioning cylinder 311, the push rod 309 can be rotated 180 degrees around the axis of the limiting rod 310. Then, the push rod 309 can be moved horizontally again so that the top block 315 connected to the push rod 309 can be inserted into the insertion hole 308. Then, the workpiece can be placed on the positioning cylinder 311 with its central hole aligned with it. Since the abutment block 312 and the like have arc-shaped contact surfaces, and when the horizontal hydraulic cylinder 305 runs so that the top block 315 connected to the drive shaft 402 is inserted between the anti-detachment blocks 314, the top block 315 will simultaneously lift the abutment blocks 312 and move radially to press against the wall of the central hole of the workpiece. Therefore, the workpiece can be fixed and it cannot slide along the axial direction of the positioning cylinder 311.

[0045] After the workpiece is fixed, the chamfering assembly 2 can be operated to make the spline of the workpiece mesh with the cutting edge of the chamfering scraper 212. Then, the second drive unit 210 and the third drive unit 403 work together to make the workpiece and the chamfering scraper 212 rotate around their respective axes, with the cutting edge of the chamfering scraper 212 fully contacting each spline edge. Combined with the first drive unit 208 driving the chamfering scraper 212 to move along the workpiece axis, the chamfering of the spline tooth surface can be fully completed.

[0046] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A device for machining conical chamfers on spline tooth surfaces, characterized in that: The device includes a loading assembly (1) on which the core components of this device can be installed. Above the loading assembly (1) is a chamfering assembly (2) that can chamfer the workpiece as needed. Below the chamfering assembly (2) is a main positioning assembly (3) that can be fixed to the workpiece in a corresponding way according to the type of the workpiece. On one side of the main positioning assembly (3) is a secondary positioning assembly (4) that can drive the workpiece to rotate as needed. The main positioning component (3) includes a translation component that can adapt to the positioning needs of workpieces of different sizes, an abutment component that can contact different parts of the workpiece according to its type to complete the positioning, a positioning workpiece that can make the abutment component more stable, and a rotating component that completes the chamfering process. The rotating component includes a follower frame (306); The abutting component includes a top rod (309) movably installed in one side of the follower frame (306), a limiting rod (310) fixedly connected to the top rod (309) and passing through it, a positioning cylinder (311) fixedly connected to one side of the top rod (309), a plurality of abutting blocks (312) movably connected to the positioning cylinder (311), an anti-slip pad (313) fixedly installed on the outer surface of the abutting block (312), and an anti-detachment block (314) located in the positioning cylinder (311) fixedly connected to the side of the abutting block (312) away from the anti-slip pad (313); The secondary positioning component (4) includes a drive shaft (402) disposed on one side of the top rod (309); The abutment also includes a top block (315) that is fixedly connected to the top rod (309) and the drive shaft (402) on the side close to each other.

2. The spline tooth surface conical chamfering processing device according to claim 1, characterized in that: The translation component includes a carrier plate (301) disposed on the loading assembly (1), a slide (302) movably mounted on one side of the carrier plate (301), a rod (303) movably connected below the slide (302), an anti-detachment cap (304) threadedly connected to the upper end of the rod (303), and a horizontally placed hydraulic cylinder (305) fixedly connected to one side of the slide (302).

3. The spline tooth surface conical chamfering processing device according to claim 2, characterized in that: The rotating component includes a follower frame (306) movably mounted on one side of the slide (302), a plurality of limit blocks (307) are fixedly installed inside the follower frame (306), and an insertion hole (308) is integrally formed inside the follower frame (306).

4. The spline tooth surface conical chamfering processing device according to claim 1, characterized in that: The follower frame (306) is provided with a guide groove that matches the limiting rod (310), and the positioning cylinder (311) is slidably connected to the abutment block (312).

5. The spline tooth surface conical chamfering processing device according to claim 4, characterized in that: The top rod (309) and the positioning cylinder (311) are coaxial with the drive shaft (402). Multiple abutment blocks (312) are arranged at equal angular intervals around the axis of the positioning cylinder (311). The abutment block (312) has an arc-shaped contact surface on its radial outer side. The arc-shaped contact surface is a concave arc surface.

6. The spline tooth surface conical chamfering processing device according to claim 2, characterized in that: The carrier plate (301) is provided with a limiting groove that matches the insertion rod (303). The slide table (302) and the insertion rod (303) are slidably connected to the carrier plate (301), and the slide table (302) is slidably connected to the insertion rod (303).

7. The spline tooth surface conical chamfering processing device according to claim 3, characterized in that: The slide (302) is rotatably connected to the follower frame (306), and the insertion hole (308) is engaged with the top block (315).

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