Finishing structure for gears

Abstract

The utility model provides a kind of finish machining structure for gear, it is related to gear processing equipment technical field, including rotating column, the rotating column top is integrally formed with wheel shaft, the part of wheel shaft and rotating column connection forms shaft shoulder;Gear is sleeved on the wheel shaft, the shaft sleeve of gear and wheel sleeve insert fit, shaft sleeve bottom end and shaft shoulder abutting contact, the top end portion of shaft sleeve is sleeved with baffle ring;Two symmetrically distributed L-shaped insertion shafts are slidably installed on the circumferential wall of the baffle ring, and the L-shaped insertion shafts are inserted and connected with the wheel shaft;A U-shaped guide frame is welded to the bottom end of the baffle ring, a horizontal drive rod is slidably installed on the U-shaped guide frame by spring pushing, and two connecting rods are symmetrically connected between the horizontal drive rod and the two L-shaped insertion shafts.

Description

Technical Field

[0001] This utility model relates to the field of gear processing equipment technology, and in particular to a precision machining structure for gears. Background Technology

[0002] Gear shaping and milling, with its advantages of high machining accuracy and high machining efficiency, has become the most widely used gear finishing architecture. The performance of the positioning mechanism in gear shaping and milling equipment is an important factor affecting its machining accuracy. Therefore, it is essential to design a high-performance positioning mechanism for gear shaping and milling equipment to ensure its machining accuracy.

[0003] The existing positioning mechanisms for fixing gears during the machining process are mostly large-diameter nuts. Although these positioning mechanisms are simple in structure and low in cost, they are relatively troublesome and inconvenient to operate. This is because when disassembling and assembling gears before and after machining, the nuts need to be turned in both directions multiple times to lock and unlock the gears, which indirectly reduces the efficiency of gear disassembly and assembly. Utility Model Content

[0004] In view of this, the present invention provides a precision machining structure for gears to solve the problem that when disassembling and assembling gears before and after machining, it is necessary to turn the nut in both directions multiple times to lock and unlock the gears, which is cumbersome and inconvenient to operate.

[0005] The technical solution proposed by this utility model is as follows: a precision-machined structure for gears, specifically including a rotating column, the top of which is integrally formed with a wheel axle, the part connecting the wheel axle and the rotating column forming a shoulder; a gear is fitted on the wheel axle, the bushing of the gear is inserted into the wheel axle, the bottom end of the bushing abuts against the shoulder, and a retaining ring is fitted on the top part of the bushing; two symmetrically distributed L-shaped inserts are slidably installed through the peripheral wall of the retaining ring, the L-shaped inserts being inserted into the wheel axle; a U-shaped guide frame is welded to the bottom of the retaining ring, and a horizontal drive rod is slidably installed on the U-shaped guide frame in the form of a spring push, and two connecting rods are symmetrically rotatably connected between the horizontal drive rod and the two L-shaped inserts.

[0006] Furthermore, two U-shaped mounting frames are symmetrically welded to the outer circumference of the retaining ring, and the L-shaped insert shaft slides through the middle part of the U-shaped mounting frame.

[0007] Furthermore, two collars are symmetrically welded to both ends of the horizontal drive rod, and the collars slide in contact with the vertical side shaft of the U-shaped guide frame;

[0008] The two ends of the connecting rod are rotatably connected to the end of the collar and the tail end of the L-shaped insert shaft, respectively.

[0009] Furthermore, a limiting ring is fixedly mounted on the L-shaped insert shaft, and a spring that pushes the horizontal drive rod is mounted on the vertical side shaft of the U-shaped guide frame and is compressed and clamped between the shaft ring and the retaining ring, with the outer periphery of the limiting ring and the retaining ring abutting against each other.

[0010] Furthermore, a keyway is provided on the outer periphery of the axle, and a key strip is integrally formed on the inner periphery of the bushing, with the key strip slidingly assembled with the keyway;

[0011] The inner circumference of the retaining ring is integrally formed with a positioning block, which is slidably adapted to the keyway.

[0012] Furthermore, it also includes a processing table, with a mounting base fixedly installed on the top of the processing table.

[0013] Furthermore, the bottom end of the rotating column is rotatably assembled with the mounting base.

[0014] The precision machining structure for gears provided by this utility model has the following beneficial effects:

[0015] Two L-shaped inserts are held in a plugged-in position by springs on a U-shaped guide frame. The two L-shaped inserts, two connecting rods, and a horizontal drive rod are connected to form a double-crank slider mechanism. With this mechanism, the two L-shaped inserts can be driven to slide towards or away from each other by simply sliding the horizontal drive rod up and down, engaging or disengaging with the top part of the bushing, and tightening or loosening the retaining ring. This allows for disassembly and assembly of the gear before and after processing. Thus, the double-crank slider mechanism and the retaining ring together form a gear positioning mechanism. Compared with existing positioning mechanisms using large-diameter nuts, this positioning mechanism eliminates the cumbersome steps of rotating the large-diameter nut multiple times in both directions to tighten or loosen it to lock and unlock the gear before and after processing. It is convenient and time-saving to operate, and helps to indirectly improve the efficiency of gear disassembly and assembly. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0018] In the attached diagram:

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0020] Figure 2 A diagram showing the assembly relationship between the gear and the axle in this invention is provided.

[0021] Figure 3This is a bottom-view view of the gear and axle assembly state in this utility model;

[0022] Figure 4 A schematic diagram showing the disassembled state of the gear and retaining ring in this utility model is provided.

[0023] Figure 5 A schematic diagram of the gear structure in this utility model is shown.

[0024] List of reference numerals in the attached diagram:

[0025] 1. Processing table; 101. Mounting base;

[0026] 2. Rotary column; 201. Axle; 2011. Keyway; 202. Shoulder;

[0027] 3. Gears; 301 bushings; 3011 keyways;

[0028] 4. Retaining ring; 401. U-shaped guide frame; 402. Horizontal drive rod; 4021. Shaft collar; 403. Connecting rod; 404. L-shaped insert shaft; 4041. Limiting ring; 405. U-shaped mounting frame; 406. Positioning block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please refer to Figures 1 to 5 Example 1:

[0031] This embodiment proposes a precision-machined structure for gears, including a rotating column 2, with an axle 201 integrally formed at the top of the rotating column 2. The portion of the axle 201 connected to the rotating column 2 forms a shoulder 202. A gear 3 is fitted onto the axle 201, and a bushing 301 of the gear 3 is fitted into the axle 201. The bottom end of the bushing 301 abuts against the shoulder 202, and a retaining ring 4 is fitted onto the top end of the bushing 301. Two symmetrically distributed L-shaped inserts 404 are slidably mounted through the peripheral wall of the retaining ring 4. The portion of the L-shaped inserts 404 protruding from the inner side of the retaining ring 4 is inserted into the top end of the axle 201. A U-shaped guide frame 401 is welded to the bottom end of the retaining ring 4. A horizontal drive rod 402 is slidably mounted on the U-shaped guide frame 401 by spring pushing. Two connecting rods 403 are symmetrically rotatably connected between the horizontal drive rod 402 and the two L-shaped inserts 404.

[0032] Preferably, two U-shaped mounting frames 405 are symmetrically welded on the outer periphery of the retaining ring 4, and the L-shaped insert shaft 404 slides through the middle part of the U-shaped mounting frame 405.

[0033] Preferably, two collars 4021 are symmetrically welded at both ends of the horizontal drive rod 402, and the collars 4021 slide in fit with the vertical side shaft of the U-shaped guide frame 401; the two ends of the connecting rod 403 are rotatably connected to the collars 4021 and the tail end of the L-shaped insert shaft 404, respectively.

[0034] Preferably, a limiting ring 4041 is fixedly mounted on the L-shaped insert shaft 404, and a spring that pushes the horizontal drive rod 402 is mounted on the vertical side shaft of the U-shaped guide frame 401 and is compressed and clamped between the shaft collar 4021 and the retaining ring 4, with the limiting ring 4041 and the outer periphery of the retaining ring 4 in contact.

[0035] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:

[0036] This embodiment includes a processing table 1, a keyway 2011 on the outer periphery of a wheel axle 201, a key strip 3011 integrally formed on the inner circumference of a bushing 301, the key strip 3011 and the keyway 2011 being slidably assembled; a positioning block 406 integrally formed on the inner circumference of a retaining ring 4, the positioning block 406 and the keyway 2011 being slidably adapted; a mounting base 101 is fixedly installed on the top of the processing table 1; the bottom part of the rotating column 2 is rotatably assembled with the mounting base 101.

[0037] The working principle, specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in realizing this technical solution will be described and explained in detail below:

[0038] This machining structure is also equipped with a high-frequency reciprocating gear shaping milling cutter and a device for driving the cutter. The gear shaping milling cutter is used to slide and adapt to the rough-machined tooth grooves on the gear 3 blank to perform milling finishing on the gear 3 teeth. While performing milling up and down sliding, the gear shaping milling cutter also performs a slow rotational motion, which enables the gear shaping milling cutter to mesh and drive the gear 3 to rotate, so as to perform comprehensive and thorough machining on all the teeth on the outer periphery of the gear 3.

[0039] It is worth noting that the gear shaping milling cutter and its driving device are not shown in the accompanying drawings. Since the structure, installation position relationship, transmission relationship and working principle of the gear shaping milling cutter and its driving device are existing technology for those skilled in the art who are engaged in equipment design, installation and commissioning, they are not described in detail in the specification and are not shown in the accompanying drawings.

[0040] When the two L-shaped inserts 404 are inserted into the top part of the rotating column 2, the retaining ring 4 can be positioned on the top part of the rotating column 2. After the retaining ring 4 is positioned, it abuts against the top of the bushing 301, which can block and fix the bushing 301 and the gear 3 between it and the shoulder 202, so that the positioning is maintained on the wheel axle 201. The two L-shaped inserts 404 are kept in the insertion and positioning state by the spring push on the U-shaped guide frame 401. The two L-shaped inserts 404, the two connecting rods 403 and the horizontal drive rod 402 are connected to form a double crank slider mechanism. Through this mechanism, the horizontal drive rod 402 only needs to be slid up and down. With simple operation, the two L-shaped inserts 404 can slide towards or away from each other, engaging or disengaging with the top part of the bushing 301, and tightening or loosening the retaining ring 4. This allows for the disassembly and assembly of the gear 3 before and after processing. Thus, the double crank slider mechanism and the retaining ring 4 together form a positioning mechanism for the gear 3. Compared with the existing positioning mechanism using a large-diameter nut, this positioning mechanism eliminates the cumbersome steps of rotating the large-diameter nut multiple times in both directions to tighten or loosen it to lock and unlock the gear 3 before and after processing. The operation is convenient and time-saving, which helps to indirectly improve the disassembly and assembly efficiency of the gear 3.

[0041] Gear 3 is driven by key 3011 and keyway 2011 to drive axle 201 and column 2. Through column 2, gear 3 can be driven to rotate omnidirectionally by gear shaping and milling cutter to perform full machining on all its teeth.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0044] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A precision-machined structure for gears, comprising a swivel (2), wherein a wheel axle (201) is integrally formed at the top of the swivel (2), and the portion of the wheel axle (201) connected to the swivel (2) forms a shoulder (202). Its features are, Gear (3) is fitted on the axle (201). The bushing (301) of the gear (3) is fitted into the axle (201). The bottom end of the bushing (301) abuts against the shoulder (202). A retaining ring (4) is fitted on the top part of the bushing (301). Two symmetrically distributed L-shaped inserts (404) are slidably installed on the periphery of the retaining ring (4). The L-shaped inserts (404) are inserted into the axle (201). A U-shaped guide frame (401) is welded to the bottom end of the retaining ring (4). A horizontal drive rod (402) is slidably installed on the U-shaped guide frame (401) in the form of spring push. Two connecting rods (403) are symmetrically rotatably connected between the horizontal drive rod (402) and the two L-shaped inserts (404).

2. The precision machining structure for gears according to claim 1, characterized in that, The retaining ring (4) has two U-shaped mounting frames (405) symmetrically welded on its outer periphery. The L-shaped insert shaft (404) and the middle part of the U-shaped mounting frame (405) slide through each other.

3. The precision machining structure for gears according to claim 1, characterized in that, The horizontal drive rod (402) has two symmetrically welded collars (4021) at both ends, and the collars (4021) slide in contact with the vertical side shaft of the U-shaped guide frame (401); The two ends of the connecting rod (403) are rotatably connected to the collar (4021) and the tail end of the L-shaped insert shaft (404), respectively.

4. The finishing structure for gears according to claim 3, characterized in that, A limiting ring (4041) is fixedly mounted on the L-shaped insert shaft (404). A spring that pushes the horizontal drive rod (402) is mounted on the vertical side shaft of the U-shaped guide frame (401) and is compressed and clamped between the shaft ring (4021) and the retaining ring (4). The limiting ring (4041) and the outer periphery of the retaining ring (4) are in contact.

5. The precision machining structure for gears according to claim 1, characterized in that, The outer periphery of the axle (201) is provided with a keyway (2011), and the inner periphery of the bushing (301) is integrally formed with a key strip (3011), which is slidably assembled with the keyway (2011); The inner circumference of the retaining ring (4) is integrally formed with a positioning block (406), which is slidably adapted to the keyway (2011).

6. The finishing structure for gears according to claim 1, characterized in that, It also includes a processing table (1), and a mounting base (101) is fixedly installed on the top of the processing table (1).

7. The finishing structure for gears according to claim 1, characterized in that, The bottom part of the rotating column (2) is rotatably assembled with the mounting base (101).

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