Gear grinding clamp for gear hobbing of rotary gear

Abstract

The utility model discloses a gear grinding clamp for rotary gear hobbing, and relates to the technical field of gear clamps. A base is characterized in that a machining table is arranged above the base, a placing plate is arranged at the top of the machining table, a stand column is arranged at the center of the placing plate and fixedly connected with the machining table, a pressing plate is arranged above the placing plate, and a clamping groove is formed in the top of the pressing plate. The machining table, the containing plate, the stand column and the pressing plate are arranged to be used for containing the rotary gear, clamping force is applied from the upper side and the lower side of the rotary gear through the containing plate and the pressing plate, the contact face between the rotary gear and the clamp is enlarged, and supporting of the clamp to the rotary gear is enhanced; and meanwhile, a stand column penetrates through an inner hole of the rotary gear, and a movable plate is arranged on the stand column to support the rotary gear from the inner side, so that the rotary gear can be stably clamped and fixed, and the rotary gear is prevented from deviating between the placing plate and the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of gear fixtures, in particular to a gear grinding fixture for gear hobbing of rotary gears. Background Art

[0002] Rotary gears usually refer to rotary planetary gears, which are a type of gear device. As a transmission mechanical device, gears are widely used in mechanical equipment in various fields. Gear hobbing and gear grinding, as the two major processes of gear processing, have a great influence on the accuracy of gears. Therefore, gear fixtures are needed to assist in gear processing.

[0003] The prior art publication number is CN220591788U, which is a gear hobbing clamping device. When the device is in use, the gear is clamped and fixed by a top clamping seat and a bottom clamping seat arranged above and below. However, the sizes of the upper and lower clamping seats of the device are fixed and cannot be adjusted according to gears of different sizes, which makes it inconvenient to clamp larger gears. Moreover, when the device is in use, the connecting block part between the clamping seats has a simple structure and cannot be adjusted. The inner hole diameters of different gears are different. When the device is in use, there is a gap between the connecting block and the inner hole. During the processing, the gear is easily offset when the force is too large, thereby affecting the processing accuracy. Utility Model Content

[0004] The utility model aims to make up for the shortcomings of the prior art that the clamping parts cannot be adjusted and the gears are easy to deviate, and provides a gear grinding fixture for rotary gear hobbing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gear grinding fixture for rotary gear hobbing processing, comprising a base, a processing table is provided above the base, a placement plate is provided on the top of the processing table, a column is provided at the center of the placement plate, and the column is fixedly connected to the processing table, a pressure plate is provided above the placement plate, an L-shaped bracket is fixedly connected to the left side of the base, a first cylinder is fixedly connected to the top of the bracket, and the telescopic end of the first cylinder extends to the bottom of the bracket and is fixedly connected to the pressure plate, an opening is provided on the pressure plate, a bottom plate is fixedly connected to the base, and the processing table is movably connected to the bottom plate, a first motor is fixedly connected to the top of the bottom plate, and a plurality of meshing transmission gears are movably connected below the bottom plate, and the first motor and the processing table are fixedly connected to adjacent transmission gears.

[0006] As mentioned above, the placement plate is composed of a plurality of annular plates, and the plurality of annular plates are arranged in layers from the inside to the outside, the column passes through the innermost annular plate, and the two adjacent annular plates are respectively integrated with an upper edge and a lower edge distributed inside and outside, a block is fixedly connected to the bottom of the upper edge, and a slot matching the block is opened on the lower edge.

[0007] As mentioned above, the processing table is hollow, and four second cylinders are arranged in the processing table. The four second cylinders are distributed in an array around the column. A rectangular groove is opened on the top of the processing table, and a socket is opened on the bottom of the annular plate. The top of the second cylinder extends to the outside through the slide groove and is inserted into the adjacent socket. A slider is fixedly connected to the bottom of the second cylinder, a through groove is opened on the slider, and a slide rail is slidably connected in the through groove, and the slide rail is fixedly connected to the processing table.

[0008] As mentioned above, a rotating shaft is movably connected inside the processing table, a turntable and a worm gear are arranged up and down under the slide rail, and the rotating shaft passes through the turntable and the worm gear, a second motor is fixedly connected inside the processing table, a worm is fixedly connected to the output end of the second motor, and the worm is meshed with the worm gear, a spiral thread is provided on the top of the turntable, and a tooth groove matching the spiral thread is provided on the bottom of the movable block.

[0009] As mentioned above, the column is a tube body with closed ends, the side wall of the column is provided with three annular cavities, and openings are provided on both sides of the cavity inside and outside, a movable plate with an elliptical cross-section is provided in the cavity, a screw is movably connected in the column, and the top end of the screw extends to the top of the column and is fixedly connected with a knob, a movable block is threadedly connected to the screw, and the movable block is fitted with the movable plate.

[0010] In the above-mentioned, a groove is opened on the base, and a partition is fixedly connected in the groove, the processing table is located above the partition, a nozzle is fixedly connected to the bottom of the bracket, a pump body and an infusion tube are fixedly connected to the outside of the bracket, and the pump body is connected to the infusion tube, one end of the infusion tube is connected to the groove, and the other end is connected to the nozzle.

[0011] As mentioned above, the partition is provided with a plurality of evenly distributed through holes, and the through holes are connected to the cavity, the top of the partition is paved with a metal filter, the bottom of the cavity is inclined, and the lowest point is the end of the infusion tube.

[0012] Compared with the prior art, the gear grinding fixture for rotary gear hobbing has the following beneficial effects:

[0013] 1. The utility model is used to place the rotating gear by arranging a processing table, a placement plate, a column and a pressure plate. The placement plate and the pressure plate apply a clamping force from the upper and lower sides of the rotating gear to increase the contact surface between the rotating gear and the fixture, and strengthen the support of the fixture for the rotating gear. At the same time, the column passes through the inner hole of the rotating gear, and a movable plate is provided on the column to support the rotating gear from the inside, so that the rotating gear can be stably clamped and fixed to prevent the rotating gear from shifting between the placement plate and the pressure plate.

[0014] 2. The utility model comprises a plurality of annular plates to form a placement plate, and the annular plates are spliced ​​and engaged through an upper edge, a lower edge and a clamping block, and the cylinder can be folded and spread out by arranging a second motor, a worm, a worm wheel, a turntable, a movable block and other components, so that the cylinder can be moved under different annular plates and different numbers of annular plates can be lifted up, so that placement plates of different sizes can be unfolded, which is convenient for clamping and using rotating gears of different sizes.

[0015] 3. The utility model stores coolant by opening a groove on the base, and arranges a pump body, a liquid infusion tube and a nozzle to spray the coolant on the rotating gear, thereby cooling the rotating gear. At the same time, the processing table is located in the groove, so that the sprayed coolant flows into the groove, and the impurities in the refluxed coolant are filtered through the partition and the metal filter, so that the coolant can be recycled and waste can be reduced.

[0016] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of some components of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the knot processing table and the placement plate of the utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the processing table of the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the column of the utility model;

[0023] Figure 7 This is a schematic diagram of the annular plate structure of the utility model.

[0024] In the figure: 1. base; 2. processing table; 3. placement plate; 301. annular plate; 302. upper edge; 303. lower edge; 4. column; 5. first motor; 6. first cylinder; 7. pressure plate; 8. nozzle; 9. bracket; 10. infusion tube; 11. pump body; 12. bottom plate; 13. transmission gear; 14. partition; 15. second cylinder; 16. rotating shaft; 17. second motor; 18. worm gear; 19. worm; 20. support plate; 21. slide rail; 22. turntable; 23. movable plate; 24. screw; 25. movable block; 26. slider; 27. metal filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1-7 As shown, the utility model provides a technical solution: a gear grinding fixture for rotary gear hobbing processing, comprising a base 1, a processing table 2 is provided above the base 1, a placement plate 3 is provided on the top of the processing table 2, a column 4 is provided at the center of the placement plate 3, and the column 4 is fixedly connected to the processing table 2, a pressing plate 7 is provided above the placement plate 3, an L-shaped bracket 9 is fixedly connected to the left side of the base 1, a first cylinder 6 is fixedly connected to the top of the bracket 9, and the telescopic end of the first cylinder 6 extends to the bottom of the bracket 9 and is fixedly connected to the pressing plate 7, an opening is opened on the pressing plate 7, a bottom plate 12 is fixedly connected to the base 1, and the processing table 2 is movably connected to the bottom plate 12, a first motor 5 is fixedly connected to the top of the bottom plate 12, and a plurality of meshing transmission gears 13 are movably connected below the bottom plate 12, and the first motor 5 and the processing table 2 are fixedly connected to the adjacent transmission gears 13.

[0027] According to the overall structure of the device, the rotating gear is placed on the placement plate 3, and the column 4 passes through the inner hole of the rotating gear. The first cylinder 6 is started to lower the pressure plate 7, and the column 4 passes through the opening of the pressure plate 7, so that the pressure plate 7 is pressed on the rotating gear, thereby completing the clamping and fixing of the rotating gear. After that, the first motor 5 is started, and the first motor 5 drives the adjacent transmission gear 13 to rotate. The transmission between the transmission gears 13 rotates the processing table 2, thereby performing the hobbing and grinding of the rotating gear.

[0028] like Figure 7As shown, the placement plate 3 is composed of a plurality of annular plates 301, and the plurality of annular plates 301 are arranged in layers from the inside to the outside, and the column 4 passes through the innermost annular plate 301, and an upper edge 302 and a lower edge 303 distributed inside and outside are integrated between two adjacent annular plates 301, a card block is fixedly connected to the bottom of the upper edge 302, and a card slot matching the card block is opened on the lower edge 303.

[0029] The placement plate 3 is formed by nesting multiple annular plates 301 inside and outside in layers, and the inner and outer annular plates 301 are spliced ​​together through the upper edge 302 and the lower edge 303, so that different levels of annular plates 301 can be selectively used to form placement plates 3 of different sizes, which can be suitable for clamping rotating gears of different sizes.

[0030] like Figure 4 , 5 As shown, the processing table 2 is hollow, and four second cylinders 15 are arranged in the processing table 2. The four second cylinders 15 are distributed in an array around the column 4. A rectangular groove is opened on the top of the processing table 2, and a plug hole is opened at the bottom of the annular plate 301. The top of the second cylinder 15 extends through the slide groove to the outside and is inserted into the adjacent plug hole. A slider 26 is fixedly connected to the bottom of the second cylinder 15, and a through groove is opened on the slider 26. A slide rail 21 is slidably connected in the through groove, and the slide rail 21 is fixedly connected to the processing table 2.

[0031] The second cylinder 15 can be moved laterally by the slider 26 and the slide rail 21, so that the second cylinder 15 can be moved to different annular plates 301, and the top of the second cylinder 15 can be inserted into the socket at the bottom of the annular plate 301, so that the position of the second cylinder 15 can be adjusted, so that the second cylinder 15 can lift up the placement plates 3 at different levels to adjust the size of the placement plates 3.

[0032] like Figure 5 As shown, a rotating shaft 16 is movably connected inside the processing table 2, a turntable 22 and a worm gear 18 are provided below the slide rail 21 and are distributed up and down, and the rotating shaft 16 passes through the turntable 22 and the worm gear 18, a second motor 17 is fixedly connected inside the processing table 2, a worm 19 is fixedly connected to the output end of the second motor 17, and the worm 19 is meshed with the worm gear 18, a spiral thread is provided on the top of the turntable 22, and a tooth groove matching the spiral thread is provided on the bottom of the movable block 25.

[0033] The worm 19 is driven to rotate by the second motor 17, and the meshing transmission of the worm 19 drives the worm wheel 18 to rotate. The worm 19 drives the turntable 22 to rotate through the rotating shaft 16. When the turntable 22 rotates, the slider 26 is moved horizontally through the meshing transmission of the spiral thread, thereby driving the second cylinder 15 to move, so as to facilitate the adjustment of the position of the second cylinder 15. An annular support plate 20 is fixedly connected to the inner wall of the processing table 2, and the outer edge of the turntable 22 is mounted on the support plate 20, and the outer edge of the turntable 22 is supported by the support plate 20.

[0034] like Figure 6 As shown, the column 4 is a tube body with closed ends, and three annular cavities are opened on the side wall of the column 4, and openings are opened on both sides of the cavity. A movable plate 23 with an elliptical cross-section is provided in the cavity, and a screw rod 24 is movably connected in the column 4, and the top end of the screw rod 24 extends to the top of the column 4 and is fixedly connected to a knob, a movable block 25 is threadedly connected to the screw rod 24, and the movable block 25 is fitted with the movable plate 23.

[0035] The screw rod 24 is turned by the knob to move the movable block 25 upward, and the movable block 25 is separated from the movable plate 23. At this time, the movable plate 23 is in a relaxed state, and the rotating gear can be freely put on or removed from the column 4. When the rotating gear is put on, the knob is turned in the opposite direction to move the movable block 25 downward, and the movable block 25 contacts the movable plate 23 and pushes the movable plate 23 to move outward. The movable plate 23 extends from the outer opening and contacts the inner hole of the rotating gear to fix the rotating gear and prevent the rotating gear from shifting on the placement plate 3 during the processing. A limiting rod is fixedly connected to the inner wall of the column 4, and a groove matching the limiting rod is provided on the outer side of the movable block 25. The movable block 25 is limited by the limiting rod and the groove, and the movable block 25 is placed to rotate with the screw rod 24 without moving up and down.

[0036] like Figure 2 , 3 As shown, a groove is provided on the base 1, and a partition 14 is fixedly connected in the groove, the processing table 2 is located above the partition 14, a nozzle 8 is fixedly connected to the bottom of the bracket 9, a pump body 11 and an infusion tube 10 are fixedly connected to the outside of the bracket 9, and the pump body 11 is connected to the infusion tube 10, one end of the infusion tube 10 is connected to the groove, and the other end is connected to the nozzle 8.

[0037] The coolant is stored in the groove, and can be transported to the nozzle 8 through the pump body 11 and the liquid delivery tube 10, and sprayed on the rotating gear through the nozzle 8, so as to cool the processing part of the rotating gear and facilitate continuous processing.

[0038] like Figure 3 As shown, the partition 14 is provided with a plurality of evenly distributed through holes, and the through holes are connected to the cavity. A metal filter screen 27 is laid on the top of the partition 14. The bottom of the cavity is inclined, and the lowest point is the end of the infusion tube 10.

[0039] The coolant can be refluxed into the groove through the through hole on the partition 14 for recycling, and the impurities in the coolant are filtered through the metal filter 27. The inclined setting of the bottom of the groove facilitates the coolant to be concentrated at the infusion pipe 10.

[0040] Working principle: When in use, connect the device to an external power source, turn the knob to drive the screw 24 to rotate, so that the movable block 25 moves up, the movable plate 23 is relaxed, and the slewing gear is placed on the placement plate 3, so that the column 4 passes through the inner hole in the middle of the slewing gear, and then turn the knob in the opposite direction to move the movable block 25 downward to push the movable plate 23 to move outward and against the inner hole of the slewing gear. After that, the first cylinder 6 starts to lower the pressure plate 7 to press on the top of the slewing gear, and the first motor 5 starts to drive the processing table 2 to rotate through the transmission gear 13, thereby driving the slewing gear to rotate, and performing gear hobbing and grinding of the slewing gear. When in use, different sizes of placement plates 3 can be selected according to the size of the slewing gear, and the second cylinder 15 can be started to shrink the second cylinder 15 and move out of the jack, and the second motor 17 can be started. The machine 17 drives the worm 19, and drives the turntable 22 to rotate through the worm gear 18 and the rotating shaft 16. The turntable 22 makes the slider 26 slide horizontally through the spiral thread, and moves the second cylinder 15 to the bottom of the outer ring plate 301. Then the second cylinder 15 is extended and inserted into the jack, and the outer ring plate 301 is lifted. When the outer ring plate 301 is lifted, the inner ring plate 301 is lifted together through the upper edge 302 and the lower edge 303, so as to adjust the size of the placement plate 3. During the processing, the pump body 11 transports the coolant to the nozzle 8 and sprays it on the rotating gear for cooling. The coolant flows down from the rotating gear into the groove, and flows back into the groove after being filtered by the metal filter screen 27, and then is transported by the pump body 11, thereby realizing the recycling of the coolant and reducing the waste of the coolant.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gear grinding fixture for rotary gear hobbing, comprising a base (1), characterized in that: A processing table (2) is provided above the base (1), a placement plate (3) is provided on the top of the processing table (2), a column (4) is provided at the center of the placement plate (3), and the column (4) is fixedly connected to the processing table (2), a pressing plate (7) is provided above the placement plate (3), an L-shaped bracket (9) is fixedly connected to the left side of the base (1), a first cylinder (6) is fixedly connected to the top of the bracket (9), and the telescopic end of the first cylinder (6) extends to the bottom of the bracket (9) and is fixedly connected to the pressing plate (7), an opening is opened on the pressing plate (7), a bottom plate (12) is fixedly connected to the base (1), and the processing table (2) is movably connected to the bottom plate (12), a first motor (5) is fixedly connected to the top of the bottom plate (12), and a plurality of meshing transmission gears (13) are movably connected below the bottom plate (12), and the first motor (5) and the processing table (2) are fixedly connected to adjacent transmission gears (13).

2. The gear grinding fixture for rotary gear hobbing according to claim 1, characterized in that: The placement plate (3) is composed of a plurality of annular plates (301), and the plurality of annular plates (301) are arranged in layers from the inside to the outside, and the column (4) passes through the innermost annular plate (301). An upper edge (302) and a lower edge (303) distributed inside and outside are respectively integrated between two adjacent annular plates (301). A clamping block is fixedly connected to the bottom of the upper edge (302), and a clamping groove matching the clamping block is opened on the lower edge (303).

3. The gear grinding fixture for rotary gear hobbing according to claim 2, characterized in that: The processing table (2) is hollow, and four second cylinders (15) are arranged in the processing table (2). The four second cylinders (15) are arranged in an array around the column (4). A rectangular groove is provided on the top of the processing table (2), and a plug hole is provided on the bottom of the annular plate (301). The top of the second cylinder (15) extends through the slide groove to the outside and is plugged into an adjacent plug hole. A slider (26) is fixedly connected to the bottom of the second cylinder (15). A through groove is provided on the slider (26), and a slide rail (21) is slidably connected in the through groove. The slide rail (21) is fixedly connected to the processing table (2).

4. The gear grinding fixture for rotary gear hobbing according to claim 3, characterized in that: A rotating shaft (16) is movably connected inside the processing table (2), a rotating disk (22) and a worm wheel (18) are arranged below the slide rail (21), and the rotating shaft (16) passes through the rotating disk (22) and the worm wheel (18), a second motor (17) is fixedly connected inside the processing table (2), a worm (19) is fixedly connected to the output end of the second motor (17), and the worm (19) is meshed with the worm wheel (18), a spiral thread is provided on the top of the rotating disk (22), and a tooth groove matching the spiral thread is provided on the bottom of the slider (26).

5. The gear grinding fixture for rotary gear hobbing according to claim 1, characterized in that: The column (4) is a tube body with closed ends. The side wall of the column (4) is provided with three annular cavities, and openings are provided on both sides of the cavity. A movable plate (23) with an elliptical cross section is provided in the cavity. A screw rod (24) is movably connected in the column (4), and the top end of the screw rod (24) extends to the top of the column (4) and is fixedly connected with a knob. A movable block (25) is threadedly connected to the screw rod (24), and the movable block (25) is fitted with the movable plate (23).

6. The gear grinding fixture for rotary gear hobbing according to claim 1, characterized in that: The base (1) is provided with a groove, and a partition (14) is fixedly connected in the groove. The processing table (2) is located above the partition (14). The bottom of the bracket (9) is fixedly connected to a nozzle (8). The outside of the bracket (9) is fixedly connected to a pump body (11) and an infusion tube (10), and the pump body (11) is connected to the infusion tube (10). One end of the infusion tube (10) is connected to the groove, and the other end is connected to the nozzle (8).

7. The gear grinding fixture for rotary gear hobbing according to claim 6, characterized in that: The partition (14) is provided with a plurality of evenly distributed through holes, and the through holes are connected to the cavity. The top of the partition (14) is paved with a metal filter (27). The bottom of the groove is inclined, and the lowest point is the end of the infusion tube (10).

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