A pitch adjusting structure for gear machining

Abstract

The utility model discloses a gear pitch adjusting structure for gear machining, including base, the middle of base upper end surface is provided with recess, the upper portion of recess inner wall all around is installed with the guide plate, the both sides of recess upper end surface all are installed with the strip board, the inboard of strip board is installed with a plurality of gyro wheel through the strip slot, the both sides of base upper end surface are fixedly installed with the vertical board, and one side opposite of two vertical board outer surfaces is installed with the hobbing mechanism through the hydraulic rod, and one side opposite of two hobbing mechanisms is provided with the crosspiece, the middle installation of crosspiece upper end surface has the limit mechanism, the lower end surface of base is provided with the square groove, and the inboard of square groove is installed with dust absorption fan. The utility model can be positioned to the gear of different diameters, improved the applicability, and can collect the chip produced to the processing, avoided the chip deposition on the workstation, guaranteed the machining quality of work piece.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically to a tooth pitch adjustment structure for gear processing. Background Technology

[0002] When machining gears, a gear hobbing machine is required. The gear hobbing machine is the most widely used machine tool in gear processing. It can cut spur gears and helical gears. The current principle of the gear hobbing machine is to clamp and rotate the gear to be processed, and then make the rotating hob stick to the side of the gear to make grooves, thereby forming tooth grooves.

[0003] In the prior art, Chinese utility model patent with publication number CN218192971U discloses a gear hobbing machine with adjustable tooth pitch. By setting two hydraulic rods, the distance between two sawing rollers can be controlled, changing the fixed type to a movable type. There is no need to replace the fixed shaft, which can be used to process sprockets of various diameters and improve the efficiency of the gear hobbing machine. The hydraulic rods control the movement of the sawing rollers on both sides through the push plate, saving time. The hobbing cutter on the sawing roller can be adjusted to the optimal processing position, which can improve the processing quality of the workpiece.

[0004] However, the aforementioned device generates debris that accumulates on the worktable during processing, causing significant trouble for subsequent cleaning and affecting the processing quality of the workpiece. Furthermore, it is inconvenient to fix gears of different diameters, resulting in limited applicability. Therefore, it does not meet the existing requirements. To address this, we propose a pitch adjustment structure for gear processing. Utility Model Content

[0005] The purpose of this utility model is to provide a pitch adjustment structure for gear processing, so as to solve the problems mentioned in the background art, such as the debris generated during the processing of the above-mentioned device will be deposited on the worktable, which will cause great trouble for subsequent cleaning, and will also affect the processing quality of the workpiece. In addition, it is inconvenient to fix gears of different diameters and has low applicability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pitch adjustment structure for gear processing, comprising a base, a groove in the middle of the upper surface of the base, a guide plate installed above the inner wall of the groove, strip plates installed on both sides of the upper surface of the groove, multiple rollers installed on the inner side of the strip plates via strip grooves, vertical plates fixedly installed on both sides of the upper surface of the base, a gear hobbing mechanism installed on one side of the outer surface of the two vertical plates via hydraulic rods, a horizontal plate on one side of the two gear hobbing mechanisms, a limit mechanism installed in the middle of the upper surface of the horizontal plate, a square groove in the lower surface of the base, a dust extraction fan installed inside the square groove, a horizontal groove in the front surface of the base, a drawer in the inner side of the horizontal groove, a through groove in the bottom surface of the drawer, a U-shaped frame movably installed above the through groove, a filter screen installed inside the U-shaped frame, a protective plate movably installed above the base, and an observation window installed on the front surface of the protective plate.

[0007] Preferably, the protective plate is a U-shaped protective plate, and the four corners of the upper surface of the base are provided with limit holes, and the four corners of the lower surface of the protective plate are provided with limit posts, which can be inserted into the inside of the limit holes.

[0008] Preferably, the front and rear faces of the horizontal plate are fixedly connected to the base via a support plate, and the upper face of the horizontal plate is provided with multiple openings evenly distributed.

[0009] Preferably, the gear hobbing mechanism includes a U-shaped plate, a rotating shaft is provided on the inner side of the U-shaped plate, a toothed roller is sleeved on the outer surface of the rotating shaft, a motor for rotating the rotating shaft is installed on the front end face of the U-shaped plate, and the hydraulic rod is fixedly connected to the U-shaped plate.

[0010] Preferably, the limiting mechanism includes a support column, which is fixedly connected to the upper end face of the horizontal plate. The outer surface of the support column is evenly provided with four circular grooves. An electric push rod is installed on the inner side of the circular grooves. The other end of the electric push rod is fixedly connected to an arc-shaped plate, and the outer surface of the arc-shaped plate is covered with a rubber pad.

[0011] Preferably, a horizontal shaft is provided on the inner side of the roller, the horizontal shaft is rotatably connected to the inner wall of the strip groove through a short shaft, the groove and the square groove are connected through multiple connecting grooves, and a handle is installed on the front end face of the drawer.

[0012] Preferably, positioning posts are installed at the four corners of the lower end face of the U-shaped frame, positioning holes are provided at the four corners of the upper end face of the drawer, and the positioning posts can be inserted into the inside of the positioning holes. The surface of the guide plate is inclined, the guide plate is located directly above the drawer, and the outer surface of the roller is in contact with the lower end face of the drawer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, by setting a limiting mechanism, allows the gear to be processed to be sleeved on the outside of four arc plates. By controlling the electric push rod, the four arc plates can be moved simultaneously, so that the outer surface of the arc plates fits against the inner wall of the gear, thus fixing the gear. The rubber pads improve the stability of the gear fixing. This utility model can limit gears of different diameters, thus improving its applicability.

[0015] 2. This utility model, by incorporating a dust extraction fan, guide plate, protective plate, filter screen, and U-shaped frame, allows for the simultaneous processing of gears. The protective plate can be installed above the base to prevent debris from flying. Simultaneously, turning on the dust extraction fan draws the generated debris into the drawer, where it is blocked by the filter screen, preventing damage to the fan. When the collected debris needs to be processed, simply pull out the drawer using the handle. The U-shaped frame and filter screen can be pushed upwards through the slot to remove them from the drawer for cleaning, ensuring effective debris absorption. This utility model effectively collects processing debris, preventing its accumulation on the worktable and guaranteeing the quality of the workpiece processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a main sectional view of the entire utility model;

[0018] Figure 3 This is a partial structural schematic diagram of the limiting mechanism of this utility model;

[0019] Figure 4 This is a front sectional view of the drawer of this utility model.

[0020] In the diagram: 1. Base; 2. Hydraulic rod; 3. Vertical plate; 4. Protective plate; 5. Observation window; 6. Gear hobbing mechanism; 601. U-shaped plate; 602. Gear roller; 603. Rotating shaft; 7. Horizontal groove; 8. Drawer; 9. Guide plate; 10. Groove; 11. Square groove; 12. Dust extraction fan; 13. Support plate; 14. Horizontal plate; 15. Opening; 16. Limiting mechanism; 1601. Arc plate; 1602. Electric push rod; 1603. Support column; 1604. Circular groove; 17. Through groove; 18. Strip plate; 19. Roller; 20. U-shaped frame; 21. Filter screen. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] The hydraulic rod 2 (model SJYG70-1000), vacuum cleaner 12 (model DPT20-55H), electric push rod 1602 (model LBP40) and motor (model YS7134) mentioned in this utility model can all be purchased from the market or obtained through private customization.

[0023] Please see Figures 1 to 4 This utility model provides an embodiment of a gear pitch adjustment structure for gear machining, comprising a base 1, a groove 10 in the middle of the upper surface of the base 1, guide plates 9 mounted above the inner walls of the groove 10, strip plates 18 mounted on both sides of the upper surface of the groove 10, multiple rollers 19 mounted on the inner side of the strip plates 18 via strip grooves, vertical plates 3 fixedly mounted on both sides of the upper surface of the base 1, and gear hobbing mechanisms 6 mounted on opposite sides of the outer surfaces of the two vertical plates 3 via hydraulic rods 2, the two gear hobbing mechanisms 6 being opposite to each other... A horizontal plate 14 is provided on one side, and a limiting mechanism 16 is installed in the middle of the upper end face of the horizontal plate 14. A square groove 11 is provided on the lower end face of the base 1, and a vacuum fan 12 is installed inside the square groove 11. A horizontal groove 7 is provided on the front end face of the base 1, and a drawer 8 is provided inside the horizontal groove 7. A through groove 17 is provided on the bottom surface of the drawer 8. A U-shaped frame 20 is movably provided above the through groove 17, and a filter screen 21 is installed inside the U-shaped frame 20. A protective plate 4 is movably provided above the base 1, and an observation window 5 is installed on the front end face of the protective plate 4.

[0024] The protective plate 4 is a U-shaped protective plate. Limiting holes are provided at the four corners of the upper surface of the base 1, and limiting posts are installed at the four corners of the lower surface of the protective plate 4. The limiting posts can be inserted into the inside of the limiting holes, making it convenient to disassemble and assemble the protective plate 4.

[0025] The front and rear faces of the horizontal plate 14 are fixedly connected to the base 1 by the support plate 13. The upper face of the horizontal plate 14 is evenly provided with multiple openings 15, and debris can be introduced into the interior of the drawer 8 through the openings 15.

[0026] The gear hobbing mechanism 6 includes a U-shaped plate 601, a rotating shaft 603 is provided on the inner side of the U-shaped plate 601, a toothed roller 602 is sleeved on the outer surface of the rotating shaft 603, a motor for rotating the rotating shaft 603 is installed on the front end face of the U-shaped plate 601, a hydraulic rod 2 is fixedly connected to the U-shaped plate 601, the operation of the hydraulic rod 2 can drive the U-shaped plate 601 to move, and the operation of the motor can drive the rotating shaft 603 to rotate.

[0027] The limiting mechanism 16 includes a support column 1603, which is fixedly connected to the upper end face of the horizontal plate 14. The outer surface of the support column 1603 is evenly provided with four circular grooves 1604. An electric push rod 1602 is installed on the inner side of the circular grooves 1604. The other end of the electric push rod 1602 is fixedly connected to an arc plate 1601. The outer surface of the arc plate 1601 is covered with a rubber pad. When the electric push rod 1602 works, it can drive the arc plate 1601 to move. By providing a rubber pad, the stability of the gear support is improved.

[0028] A horizontal shaft is provided on the inner side of the roller 19. The horizontal shaft is rotatably connected to the inner wall of the strip groove through a short shaft. The groove 10 and the square groove 11 are connected through multiple connecting grooves. A handle is installed on the front end of the drawer 8 to improve the stability of the roller 19 rotation. The drawer 8 can be pulled out by the handle.

[0029] The four corners of the lower end face of the U-shaped frame 20 are equipped with positioning posts, and the four corners of the upper end face of the drawer 8 are provided with positioning holes. The positioning posts can be inserted into the inside of the positioning holes. The surface of the guide plate 9 is beveled. The guide plate 9 is located directly above the drawer 8. The outer surface of the roller 19 contacts the lower end face of the drawer 8, which makes it easy to remove the U-shaped frame 20 from the inside of the drawer 8. Debris can enter the inside of the drawer 8 through the guide plate 9. The roller 19 makes it easy to pull out the drawer 8.

[0030] When using the sawtooth adjustment mechanism for gear processing, first turn on the power, then place the gear to be processed on the outside of the four arc-shaped plates 1601. The electric push rod 1602 can be controlled to move the four arc-shaped plates 1601 simultaneously, causing the outer surface of the arc-shaped plates 1601 to fit against the inner wall of the gear, thus fixing the gear in place. The inclusion of rubber pads improves the stability of the gear fixation. The mechanism includes a dust collector 12, guide plate 9, protective plate 4, filter screen 21, and U-shaped frame 20. While processing the gear, the protective plate 4 can be installed above the base 1 to prevent debris from flying. Simultaneously, turning on the dust collector 12 draws in the debris generated during processing. The dust collector 12 draws debris into the drawer 8, where it is blocked by the filter screen 21, preventing it from entering and damaging the dust collector 12. When the collected debris needs to be processed, the drawer 8 can be pulled out using the handle. Simultaneously, the U-shaped frame 20 and filter screen 21 can be pushed upwards through the through slot 17, allowing them to be removed from the inside of the drawer 8 for cleaning, ensuring effective debris adsorption. This invention can limit the movement of gears of different diameters, improving applicability, and can collect processing debris, preventing it from accumulating on the worktable and ensuring the quality of the workpiece processing.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pitch adjustment structure for gear machining, comprising a base (1), characterized in that: A groove (10) is provided in the middle of the upper surface of the base (1). A guide plate (9) is installed above the inner wall of the groove (10). A strip plate (18) is installed on both sides of the upper surface of the groove (10). Multiple rollers (19) are installed on the inner side of the strip plate (18) through the strip groove. Vertical plates (3) are fixedly installed on both sides of the upper surface of the base (1). A gear hobbing mechanism (6) is installed on the opposite side of the outer surface of the two vertical plates (3) through a hydraulic rod (2). A horizontal plate (14) is provided on the opposite side of the two gear hobbing mechanisms (6). A guide plate (9) is installed in the middle of the upper surface of the horizontal plate (14). The base (1) has a limiting mechanism (16). A square groove (11) is provided on the lower end face of the base (1). A vacuum fan (12) is installed on the inner side of the square groove (11). A horizontal groove (7) is provided on the front end face of the base (1). A drawer (8) is provided on the inner side of the horizontal groove (7). A through groove (17) is provided on the bottom surface of the drawer (8). A U-shaped frame (20) is movably provided above the through groove (17). A filter screen (21) is installed on the inner side of the U-shaped frame (20). A protective plate (4) is movably provided above the base (1). An observation window (5) is installed on the front end face of the protective plate (4).

2. The pitch adjustment structure for gear machining according to claim 1, characterized in that: The protective plate (4) is a U-shaped protective plate. The four corners of the upper surface of the base (1) are provided with limit holes, and the four corners of the lower surface of the protective plate (4) are provided with limit posts. The limit posts can be inserted into the inner side of the limit holes.

3. The pitch adjustment structure for gear machining according to claim 1, characterized in that: The front and rear faces of the horizontal plate (14) are fixedly connected to the base (1) via a support plate (13), and the upper face of the horizontal plate (14) is provided with a plurality of openings (15).

4. The pitch adjustment structure for gear machining according to claim 1, characterized in that: The gear hobbing mechanism (6) includes a U-shaped plate (601), a rotating shaft (603) is provided on the inner side of the U-shaped plate (601), a toothed roller (602) is sleeved on the outer surface of the rotating shaft (603), a motor for rotating the rotating shaft (603) is installed on the front end face of the U-shaped plate (601), and the hydraulic rod (2) is fixedly connected to the U-shaped plate (601).

5. The pitch adjustment structure for gear machining according to claim 1, characterized in that: The limiting mechanism (16) includes a support column (1603), which is fixedly connected to the upper end face of the horizontal plate (14). The outer surface of the support column (1603) is uniformly provided with four circular grooves (1604). An electric push rod (1602) is installed on the inner side of the circular groove (1604). The other end of the electric push rod (1602) is fixedly connected to an arc plate (1601), and the outer surface of the arc plate (1601) is covered with a rubber pad.

6. The tooth pitch adjustment structure for gear machining according to claim 1, characterized in that: The inner side of the roller (19) is provided with a horizontal shaft, which is rotatably connected to the inner wall of the strip groove through a short shaft. The groove (10) and the square groove (11) are connected through multiple connecting grooves. The front end face of the drawer (8) is equipped with a handle.

7. The pitch adjustment structure for gear machining according to claim 1, characterized in that: The four corners of the lower end face of the U-shaped frame (20) are equipped with positioning posts, and the four corners of the upper end face of the drawer (8) are provided with positioning holes. The positioning posts can be inserted into the inner side of the positioning holes. The surface of the guide plate (9) is inclined. The guide plate (9) is located directly above the drawer (8). The outer surface of the roller (19) is in contact with the lower end face of the drawer (8).

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