A worm gear tooth groove processing device for producing special-shaped worm gears

Abstract

The present invention relates to the field of worm gear processing, and in particular to a worm gear tooth groove processing device for producing special-shaped worm gears, wherein a tool holder table is fixedly arranged on one side of a gear hobbing machine body, a hob assembly is movably arranged on the tool holder table, a movable bottom plate is movably arranged on the side of the gear hobbing machine body away from the tool holder table, and a turntable base is rotatably arranged above the movable bottom plate. In the present invention, the worm gear workpiece can be pressed and assembled on the mandrel through the adjustment of the movable ring located on the fixed seat, and then the worm gear workpiece is sent to the hob assembly through the movable bottom plate to realize the processing of the tooth groove of the worm gear workpiece. When the worm gear workpiece is processed, in the process of driving the worm gear workpiece to reset through the movable bottom plate, the pressure of the lower pressure ring and the rotating ring on the worm gear workpiece can be automatically released through the adaptation setting between the vertical rod, the counterweight ring, the support member and the counterweight block. This method of disassembling and assembling the worm gear workpiece is relatively convenient, which reduces the time cost and labor cost of processing the worm gear workpiece.

Description

Technical Field

[0001] The invention relates to the technical field of worm gear processing, and in particular to a worm gear tooth groove processing device for producing special-shaped worm gears. Background Art

[0002] The special-shaped worm gear is a special gear that plays an indispensable role in mechanical transmission, especially suitable for occasions requiring large reduction ratio, high torque output and staggered shaft transmission.

[0003] When using a gear hobbing machine to process a special-shaped worm gear, the special-shaped worm gear needs to be installed on the mandrel to ensure that the worm gear can rotate stably and accurately during the processing. However, traditional gear hobbing machines on the market often install special-shaped worm gears by locking nuts. This installation method is more troublesome. During the disassembly and assembly of the worm gear workpiece, the nuts need to be tightened and loosened frequently, which increases the time and labor cost of worm gear processing. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a worm gear tooth groove processing device for producing special-shaped worm gears.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A worm gear tooth groove processing device for producing special-shaped worm gears comprises a gear hobbing machine body, a tool holder platform is fixedly arranged on one side of the gear hobbing machine body, a hobbing cutter assembly is movably arranged on the tool holder platform, a movable bottom plate is movably arranged on one side of the gear hobbing machine body away from the tool holder platform, and a turntable base is rotatably arranged above the movable bottom plate;

[0007] A core shaft is vertically arranged upward in the turntable base, a top plate is fixed on the movable bottom plate above the turntable base through a support frame, and a fixing seat is arranged on the top of the top plate above the core shaft;

[0008] The outer side of the fixed seat is sleeved with a movable ring that moves vertically, and the bottom of the movable ring is fixed downward and vertically provided with multiple connecting columns, the bottoms of the connecting columns all pass through the top plate and are connected to the upper pressure ring, and a lower pressure ring is connected to the lower part of the upper pressure ring through multiple second springs, and a rotating ring is rotatably provided at the bottom of the lower pressure ring;

[0009] The fixing seat is fixedly provided with an adjustment column inside, and clamps are movably provided on both sides of the movable ring, the clamps are adapted to the adjustment column, and a lower wedge is fixedly provided in the middle of the clamps, and a counterweight ring is vertically movably provided above the movable ring, and upper wedges are adapted to the lower wedges on both sides of the counterweight ring;

[0010] A counterweight seat is fixedly arranged on one side of the fixing seat on the top plate, a counterweight block is vertically arranged in the counterweight seat, and the top of the counterweight block is connected to the movable ring through a traction rope.

[0011] In addition, a preferred structure is that a cylinder assembly is fixedly provided on the side of the gear hobbing machine body away from the tool holder table, the piston rod of the cylinder assembly is fixedly connected to the movable bottom plate, and a plurality of first guide columns for guiding the movable bottom plate are fixedly provided above the waste trough.

[0012] In addition, a preferred structure is that an inner cavity is opened inside the fixing seat, an adjusting column is vertically fixed in the inner cavity, a plurality of adjusting parts are fixedly stacked on the adjusting column, the adjusting parts are arranged in a "conical" shape, the slopes on the tops of the adjusting parts are matched with the slopes on the bottoms of the clamps, the planes on the bottoms of the adjusting parts are matched with the planes on the tops of the clamps, and adjusting cavities are opened on both sides of the adjusting parts.

[0013] In addition, a preferred structure is that transverse cavities are opened on both sides of the inner ring of the movable ring, a first spring is arranged on the inner wall of the transverse cavity, the other end of the first spring is connected to the clamp, and a transverse column is fixedly arranged on the side of the clamp facing the first spring, the transverse column passes through the first spring and extends out of the movable ring.

[0014] In addition, a preferred structure is that a plurality of second guide columns for guiding the counterweight ring are fixed vertically upward on the top of the movable ring, and vertical plates are fixed vertically downward on both sides of the counterweight ring, and upper wedge pieces are provided at the bottom of the vertical plates, and the upper wedge pieces are adapted to the lower wedge pieces in the middle of the clamp, and the lower wedge pieces and the upper wedge pieces are adapted to the adjustment cavity.

[0015] In addition, the preferred structure is that movable grooves are opened downward on both sides of the top of the movable ring, and a support member is arranged in the movable groove for guidance through a third guide column, and support grooves are opened on both sides of the bottom of the counterweight ring corresponding to the support member, and side panels are fixedly arranged on the outer sides of the support member.

[0016] In addition, a preferred structure is that a gantry is fixedly provided on the gear hobbing machine body, support rods are fixedly and vertically provided on both sides of the gantry, and vertical rods for pushing the side plates are movably provided above the support rods on both sides;

[0017] The gantry and the support rods are both provided with spring grooves corresponding to the vertical poles, the ends of the vertical poles are inserted into the spring grooves, the side walls of the spring grooves are both provided with third springs, and the other ends of the third springs are connected to the vertical poles.

[0018] In addition, a preferred structure is that a counterweight seat is fixedly provided on one side of the fixing seat on the top plate, and a counterweight block is movably provided in the counterweight seat to be guided by a fourth guide column arranged vertically.

[0019] In addition, a preferred structure is that an extension plate is fixedly provided on the top of the fixing seat toward the side of the counterweight seat, and a plurality of rope guide grooves are fixedly provided on the bottom of the extension plate;

[0020] A rope seat is fixedly arranged on the outer side of the movable ring, a traction rope is connected to the rope seat, and the other side of the traction rope is fixedly connected to the top of the counterweight block after passing through the rope guide groove.

[0021] In addition, a preferred structure is that a plurality of protective sleeves are fixed vertically upward from the top of the lower pressure ring, the protective sleeves are all located on the outside of the second spring, the tops of the protective sleeves pass through the upper pressure ring, and a top cover is fixed on the top of the protective sleeves.

[0022] The beneficial effects of the present invention are as follows: through the adjustment of the movable ring located on the fixed seat, the worm gear workpiece can be pressed and assembled on the core shaft, and then the worm gear workpiece is sent to the hob assembly through the movable base plate to realize the processing of the tooth grooves of the worm gear workpiece. When the worm gear workpiece is processed, in the process of driving the worm gear workpiece to reset through the movable base plate, the pressure of the lower pressure ring and the rotating ring on the worm gear workpiece can be automatically released through the adaptation setting between the vertical rod, the counterweight ring, the support member and the counterweight block. This method of disassembling and assembling the worm gear workpiece is relatively convenient, which reduces the time cost and labor cost of processing the worm gear workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a worm gear tooth groove processing device for producing special-shaped worm gears proposed by the present invention;

[0024] Figure 2 It is a schematic diagram of the structure above the movable bottom plate proposed in the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure when the movable ring in FIG. 1 moves downward;

[0026] Figure 4 It is a schematic diagram of the structure above the top plate proposed in the present invention;

[0027] Figure 5 for Figure 4 A schematic diagram of the structure when the movable ring in FIG. 1 moves downward;

[0028] Figure 6 It is a structural schematic diagram of the fixing seat proposed in the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the regulating column proposed in the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the movable ring, the upper pressure ring and the lower pressure ring proposed in the present invention;

[0031] Fig. 9 for Figure 8 Detailed enlarged view of the upper and lower pressure rings in FIG.

[0032] Fig.10 for Fig. 9 Schematic diagram of explosion structure in ;

[0033] Fig.11 It is a structural schematic diagram of the movable ring proposed in the present invention;

[0034] Fig.12 for Fig.11 Schematic diagram of the internal structure;

[0035] Fig.13 It is a structural schematic diagram of the clamping member, the counterweight ring and the adjusting member proposed in the present invention;

[0036] Fig.14 for Fig.13 A schematic diagram of the structure when the counterweight ring in FIG. 1 moves downward;

[0037] Fig.15 It is a structural schematic diagram of the card component proposed in the present invention;

[0038] Fig.16 It is a schematic diagram of the structure of the counterweight ring proposed in the present invention;

[0039] Fig.17 It is a structural schematic diagram of the gantry proposed in the present invention;

[0040] Fig.18 It is a schematic diagram of the internal structure of the spring slot proposed in the present invention;

[0041] Fig.19 It is a schematic diagram of the internal structure of the counterweight seat proposed in the present invention.

[0042] In the figure: 1 gear hobbing machine body, 11 tool rest table, 12 hob assembly, 13 waste trough, 14 first guide column, 15 cylinder assembly, 16 movable bottom plate, 17 turntable base, 18 spindle, 19 top plate, 2 fixed seat, 21 extension plate, 211 guide rope groove, 22 inner cavity, 23 adjustment column, 231 adjustment member, 232 adjustment cavity, 3 movable ring, 30 transverse cavity, 31 rope seat, 311 traction rope, 32 connecting column, 33 clamp, 331 transverse column, 332 first spring , 333 lower wedge, 34 counterweight ring, 341 vertical plate, 342 second guide column, 343 upper wedge, 344 support groove, 35 support, 351 side plate, 36 movable groove, 361 third guide column, 4 upper pressure ring, 41 lower pressure ring, 411 rotating ring, 42 second spring, 43 protective sleeve, 431 top cover, 5 counterweight seat, 51 counterweight block, 52 fourth guide column, 6 gantry, 60 spring groove, 601 third spring, 61 support rod, 62 vertical rod. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] See also Figure 1 A hob assembly 12 is provided on one side above the gear hobbing machine body 1 through a tool holder 11, and a waste trough 13 is provided on the other side above the gear hobbing machine body 1. A movable bottom plate 16 is movably provided above the waste trough 13 through a cylinder assembly 15, and the movable bottom plate 16 can be guided by the provision of a first guide column 14. A mandrel 18 is rotatably provided above the movable bottom plate 16 through a turntable base 17. By mounting the worm gear workpiece on the mandrel 18, the worm gear workpiece can rotate synchronously with the mandrel 18, and the worm gear workpiece is driven to move by the movable bottom plate 16, and the tooth groove of the worm gear workpiece can be processed by driving the hob assembly 12 by the tool holder 11. It is worth noting that the hob assembly 12 can be driven to move vertically and adjust the angle through the tool holder 11, and the hob assembly 12 can be driven. The processing structure of the tooth groove of the worm gear workpiece in the gear hobbing machine body 1 is all prior art, so it will not be described in detail.

[0045] See also Figure 2-3 8-10, the top plate 19 is fixedly arranged above the mandrel 18 through a support frame, a fixed seat 2 is fixedly arranged on the top of the top plate 19, and a movable ring 3 is vertically movably sleeved on the fixed seat 2. An upper pressure ring 4 is fixedly connected and arranged below the movable ring 3 through a connecting column 32, and a lower pressure ring 41 is arranged at the bottom of the upper pressure ring 4 through a second spring 42, and both the upper pressure ring 4 and the lower pressure ring 41 are adapted to the mandrel 18. By setting the upper pressure ring 4 and the lower pressure ring 41, the worm gear workpiece on the mandrel 18 can be pressed.

[0046] A plurality of protective sleeves 43 are fixedly provided on the top of the lower pressure ring 41, and the protective sleeves 43 are all located on the outside of the second spring 42. The tops of the protective sleeves 43 all pass through the upper pressure ring 4, and a top cover 431 is fixedly provided on the top of the protective sleeves 43. The provision of the top cover 431 can prevent the protective sleeves 43 from falling off the upper pressure ring 4. And by the provision of the protective sleeve 43, not only the second spring 42 can be protected, but also the lower pressure ring 41 can be guided, thereby improving the stability of the lower pressure ring 41. And it is worth noting that a rotating ring 411 is rotatably provided at the bottom of the lower pressure ring 41, and a non-slip silicone pad is provided at the bottom of the rotating ring 411. By the provision of the rotating ring 411, the lower pressure ring 41 will not hinder the rotation of the worm gear workpiece when the worm gear workpiece is pressed.

[0047] See also Figure 4-6, 19, a counterweight seat 5 is fixedly arranged on one side of the fixed seat 2 above the top plate 19, and two fourth guide columns 52 are vertically arranged inside the counterweight seat 5. The fourth guide columns 52 can realize the vertical guiding function of the counterweight block 51.

[0048] A rope seat 31 is fixedly provided on the outer side of the movable ring 3, and a traction rope 311 is connected to the rope seat 31. The traction rope 311 passes through the rope guide groove 211 below the extension plate 21 and then extends into the counterweight seat 5 and is connected to the counterweight block 51. Through the adaptation between the traction rope 311 and the rope guide groove 211, when the movable ring 3 moves downward, the counterweight block 51 can be lifted by the traction rope 311. When the movable ring 3 is not stuck, the counterweight block 51 can automatically fall downward by its own gravity, so that the movable ring 3 can be pulled up and reset by the traction rope 311.

[0049] See also Figure 6-7 , 11-15, an inner cavity 22 is opened inside the fixed seat 2, an adjusting column 23 is fixedly arranged in the inner cavity 22, a plurality of adjusting members 231 are fixedly stacked on the adjusting column 23, adjusting cavities 232 are opened on both sides of the adjusting members 231, and the adjusting cavities 232 are vertically connected to each other.

[0050] A transverse cavity 30 is provided on both sides of the inner ring of the movable ring 3. A clamp 33 is movably provided in the transverse cavity 30 through a first spring 332. A transverse column 331 is fixedly provided on the clamp 33 on one side facing the first spring 332. The transverse column 331 passes through the first spring 332 and extends out from the movable ring 3.

[0051] Since the movable ring 3 is sleeved on the fixing seat 2 , the clamping member 33 can be pushed out by the setting of the first spring 332 , so that the clamping member 33 can be pushed into the inner cavity 22 of the fixing seat 2 and clamped with the adjusting column 23 .

[0052] The adjusting members 231 are all arranged in a "conical" shape, the top of the adjusting member 231 is arranged as a slope, and the bottom of the adjusting member 231 is arranged as a plane. The bottom of the clamping member 33 is arranged with a slope corresponding to the adjusting member 231, so that when the clamping member 33 moves downward, the slope at the bottom of the clamping member 33 and the slope at the top of the adjusting member 231 are mutually adapted, so that the clamping member 33 can be pushed into the transverse cavity 30, and the first spring 332 is compressed, so that the clamping member 33 can continue to move downward through the adjusting member 231. When the clamping member 33 completes the vertical movement, the clamping member 33 can automatically extend and reset by the elastic force of the first spring 332.

[0053] Since the top of the clamping member 33 is set to be a plane, and the top of the adjusting member 231 is also set to be a plane, the clamping member 33 is clamped by the adjusting member 231 and cannot move upward. This makes the movable ring 3 only move downward at this time, but cannot move upward, thereby ensuring the stability of the upper pressing ring 4 and the lower pressing ring 41 in the process of pressing the worm gear workpiece.

[0054] It is worth noting that since the adjusting member 231 is provided with an adjusting cavity 232 adapted to the lower wedge 333 in the middle of the clamp 33, the lower wedge 333 is located in the adjusting cavity 232 regardless of the vertical movement of the clamp 33, and thus the lower wedge 333 on the clamp 33 does not affect the adaptation setting between the clamp 33 and the adjusting member 231.

[0055] See also Figure 11-16 , a plurality of second guide columns 342 are fixedly arranged upward on the top of the movable ring 3, and the counterweight ring 34 is guided to move by the second guide columns 342. Support grooves 344 are provided on both sides of the bottom of the counterweight ring 34, and a support member 35 is adapted and movably arranged in the support groove 344. A movable groove 36 is adapted and arranged corresponding to the support member 35 on the top of the movable ring 3, and a third guide column 361 is fixedly arranged in the movable groove 36, and the support member 35 is guided to move by the third guide column 361. When the tops of the support members 35 are all located in the support grooves 344 on the counterweight ring 34, the counterweight ring 34 can be propped up by the support members 35. When the support members 35 are not located in the support grooves 344, the counterweight ring 34 can move downward by its own gravity.

[0056] Both sides of the counterweight ring 34 are fixedly provided with vertical plates 341, which are adapted to the adjustment cavity 232 on the adjustment member 231, and the bottom of the vertical plates 341 is provided with upper wedges 343. The middle part of the clamping member 33 is fixedly provided with a lower wedge 333, and the upper wedge 343 is adapted to the lower wedge 333. When the counterweight ring 34 moves downward, the vertical plates 341 and the upper wedge 343 move downward synchronously, and at this time, the lower wedge 333 can be pushed into the transverse cavity 30 by the upper wedge 343, so that the clamping member 33 can be driven to move synchronously into the transverse cavity 30 by the lower wedge 333, so that the clamping member 33 and the adjustment column 23 can be released, so that the clamping member 33 can move upward, so that the clamping member 33 and the movable ring 3 can move upward and reset.

[0057] It is worth noting that the vertical plate 341, the upper wedge 343 and the lower wedge 333 are all movable in the adjustment cavity 232. When the vertical plate 341 and the upper wedge 343 do not move downward, they will not affect the normal clamping between the adjustment column 23 and the clamp 33.

[0058] See also Figure 1 , 11-12, 17-18, a gantry 6 is fixedly arranged at the top of the gear hobbing machine body 1 at the fixed seat 2, support rods 61 are fixedly and vertically arranged on both sides of the gantry 6, and vertical rods 62 are movably arranged above the support rods 61.

[0059] Spring slots 60 are provided at the corresponding positions of the vertical rods 62 on the gantry 6 and the support rods 61, and both ends of the vertical rods 62 are inserted into the spring slots 60 for movement. The third springs 601 are installed in the spring slots 60, and the third springs 601 can push the vertical rods 62 toward the middle of the gantry 6. When the movable bottom plate 16 drives the fixed seat 2 and the movable ring 3 to move and retract, no matter what height the movable ring 3 is located, the side plates 351 at the support members 35 on the movable ring 3 will contact the vertical rods 62. Therefore, the support members 35 on the movable ring 3 can be driven to move relatively through the vertical rods 62, and when the support members 35 on both sides are separated from the support slots 344, the counterweight ring 34 can move downward by its own gravity.

[0060] By disposing the third spring 601 in the spring slot 60 , the user can adjust the position of the vertical rod 62 , so that the user can assemble the support member 35 when installing the worm gear workpiece.

[0061] In this embodiment, when the user needs to process the tooth groove of the special-shaped worm gear, the user only needs to assemble the special-shaped worm gear on the core shaft 18, and then press the special-shaped worm gear through the rotating ring 411 at the bottom of the lower pressure ring 41. Then, the movable bottom plate 16 and the special-shaped worm gear are pushed to the hob assembly 12 through the cylinder assembly 15, and the special-shaped worm gear is driven to rotate through the turntable base 17 and the core shaft 18, so that the tooth groove of the special-shaped worm gear can be processed through the hob assembly 12. It is worth noting that the processing method and structure of the tooth groove of the special-shaped worm gear do not belong to the main technical problems to be solved in the present invention, so the gear hobbing machine body 1, the tool holder 11, the hob assembly 12, the waste trough 13, the first guide column 14, the cylinder assembly 15, the movable bottom plate 16, the turntable base 17 and the core shaft 18 are all existing technologies, so they are not described in detail.

[0062] Furthermore, when the user needs to assemble the special-shaped worm gear, he only needs to install the special-shaped worm gear on the mandrel 18, and then manually press the movable ring 3 downward. Thus, the upper pressure ring 4 and the lower pressure ring 41 can be driven to move downward synchronously through the movable ring 3. When the rotating ring 411 at the bottom of the lower pressure ring 41 contacts the special-shaped worm gear, the movable ring 3 is continued to be pressed downward, and the upper pressure ring 4 continues to move downward, and the second spring 42 is compressed. In this way, the elastic force of the second spring 42 can be used to enhance the clamping force on the lower pressure ring 41, so as to improve the pressing effect of the rotating ring 411 at the bottom of the lower pressure ring 41 on the special-shaped worm gear. And because the rotating ring 411 is set to rotate, during the process of the lower pressure ring 41 pressing the special-shaped worm gear, the rotating ring 411 can rotate synchronously with the special-shaped worm gear.

[0063] It is worth noting that when the movable ring 3 is pressed downward, the counterweight 51 is lifted upward by the traction rope 311. When the movable ring 3 moves upward, the counterweight 51 can fall by the traction rope 311 and its own gravity.

[0064] Furthermore, since the bottom surface of the clamp 33 and the top surface of the adjusting member 231 are both adapted slopes, through the adapted arrangement between the adjusting column 23 and the clamp 33, when the movable ring 3 and the clamp 33 move downward, the clamp 33 can move into the transverse cavity 30 through the mutually adapted slopes. At this time, the first spring 332 is compressed, so that the clamp 33 can pass through the adjusting member 231, so that the clamp 33 and the movable ring 3 can move downward.

[0065] When the movable ring 3 moves to the matching position, since the top surface of the clamping member 33 and the bottom surface of the adjusting member 231 are both flat, the clamping member 33 cannot move upward due to the clamping of the adjusting member 231. Therefore, it can be ensured that the movable ring 3 can only move downward but not upward, so as to improve the stability of the upper pressing ring 4 and the lower pressing ring 41, thereby ensuring the pressing effect on the special-shaped worm gear.

[0066] Further, the movable bottom plate 16 can be controlled to move by the piston rod of the cylinder assembly 15, so that the pressed special-shaped worm gear can be pushed to the hob assembly 12 for processing. After the processing is completed, the piston rod is retracted, and the movable bottom plate 16 can be automatically retracted and reset.

[0067] Since the gantry 6 is fixedly arranged on the gear hobbing machine body 1, the side plate 351 on the movable ring 3 will contact the vertical rod 62 on the gantry 6 during the resetting process of the movable bottom plate 16. At this time, since the fixed seat 2 and the movable ring 3 move synchronously with the movable bottom plate 16, the side plate 351 and the support member 35 cannot move due to the clamping of the vertical rod 62, so that the support member 35 will move relatively in the movable groove 36. When the support members 35 are all separated from the support groove 344, the counterweight ring 34 will automatically move downward due to the lack of support of the support members 35.

[0068] Thus, the movement of the counterweight ring 34 can drive the vertical plates 341 and the upper wedge 343 on both sides thereof to move downward synchronously in the adjustment cavity 232. When the upper wedge 343 moves downward, it can press the lower wedge 333 outward, thereby driving the clamping member 33 to move synchronously into the horizontal cavity 30 through the lower wedge 333. In this way, the mutual clamping between the clamping members 33 and the adjustment column 23 on both sides can be released, and the movable ring 3 can move vertically freely.

[0069] At this time, since the counterweight 51 is connected to the movable ring 3 through the traction rope 311, when the movable ring 3 is no longer clamped by the adjustment column 23, the counterweight 51 can automatically fall down by its own gravity, so that the movable ring 3 can be lifted up by the traction rope 311. At this time, the lower pressing ring 41 below the movable ring 3 no longer presses the worm gear workpiece, and the user can remove the processed worm gear workpiece from the mandrel 18.

[0070] It is worth noting that when the movable bottom plate 16 is retracted and reset, the vertical rod 62 on the gantry 6 is clamped on both sides of the support groove 344, and the support member 35 and the side plate 351 are pushed out from the support groove 344. This results in that when the worm gear workpiece is subsequently installed, the user cannot reset the support member 35 and the side plate 351 to the support groove 344. Therefore, a spring groove 60 with a third spring 601 is provided on the gantry 6 and the support rod 61. The user can push the vertical rod 62 in the spring groove 60 to reserve the installation space for the support member 35 and the side plate 351, because the third spring 601 is compressed at this time and the vertical rod 62 is located on the side of the support member 35 and the side plate 351. In this way, when the movable bottom plate 16 moves toward the hob assembly 12 again, the vertical rod 62 will no longer affect the side plate 351. When the movable bottom plate 16 is no longer in contact with the vertical rod 62, the vertical rod 62 can be automatically reset by the elastic force of the third spring 601. In this way, when the movable bottom plate 16 is retracted again, the side plate 351 can be clamped again by the vertical rod 62 .

[0071] During operation, the user only needs to pull the vertical rods 62 on both sides outwards, then lift the counterweight ring 34 upwards, and then clamp the support members 35 on both sides into the support grooves 344 in the counterweight ring 34, so as to realize the assembly of the movable ring 3, and then press the movable ring 3 downward, so that the rotating ring 411 at the bottom of the pressing ring 41 can be clamped to the worm gear workpiece, and the clamping processing of the worm gear workpiece can be realized.

[0072] After the processing of the worm gear workpiece is completed, the movable bottom plate 16 is automatically retracted and reset through the cylinder assembly 15. During the reset process of the movable bottom plate 16, the side plate 351 can drive the support member 35 to disengage from the support groove 344 due to the clamping of the vertical rod 62 on the gantry 6. At this time, the counterweight ring 34 can fall by its own gravity, thereby driving the vertical plate 341 and the upper wedge 343 to move downward synchronously, thereby pushing the lower wedge 333 and the clamp 33 into the transverse cavity 30 synchronously, thereby releasing the mutual clamping between the clamp 33 and the adjustment column 23. At this time, the counterweight block 51 automatically falls by its own gravity, thereby pulling the traction rope 311 through the counterweight block 51, thereby pulling the movable ring 3 upward, and the lower pressure ring 41 moves upward synchronously and releases the pressure on the worm gear workpiece, and the worm gear workpiece can be removed at this time.

[0073] In the present invention, the worm gear workpiece can be pressed and assembled on the core shaft 18 by adjusting the movable ring 3 located on the fixed seat 2, and then the worm gear workpiece is sent to the hob assembly 12 through the movable base plate 16 to realize the processing of the tooth grooves of the worm gear workpiece. When the worm gear workpiece is processed, in the process of driving the worm gear workpiece to reset by the movable base plate 16, the pressure of the lower pressure ring 41 and the rotating ring 411 on the worm gear workpiece can be automatically released through the adaptation setting between the vertical rod 62, the counterweight block 34, the support member 35 and the counterweight block 51. This method of disassembling and assembling the worm gear workpiece is relatively convenient, which reduces the time cost and labor cost of processing the worm gear workpiece.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A worm gear tooth groove processing device for producing special-shaped worm gears, comprising a gear hobbing machine body (1), characterized in that: A tool holder (11) is fixedly provided on one side of the gear hobbing machine body (1), a hobbing cutter assembly (12) is movably provided on the tool holder (11), a movable bottom plate (16) is movably provided on the side of the gear hobbing machine body (1) away from the tool holder (11), and a turntable base (17) is rotatably provided above the movable bottom plate (16); a core shaft (18) is vertically provided upward in the turntable base (17), a top plate (19) is fixed on the movable bottom plate (16) above the turntable base (17) through a support frame, and a fixed seat (2) is provided on the top of the top plate (19) above the core shaft (18); a vertically movable ring (3) is sleeved on the outer side of the fixed seat (2), a plurality of connecting columns (32) are vertically provided on the bottom of the movable ring (3), the bottoms of the connecting columns (32) all pass through the top plate (19) and are connected to the upper pressure ring (4), and the upper pressure ring (4 ) is connected to the bottom of the movable ring (3) through a plurality of second springs (42), and a lower pressure ring (41) is rotatably provided at the bottom of the lower pressure ring (41); an adjusting column (23) is fixedly provided inside the fixed seat (2), and clamps (33) are movably provided on both sides of the movable ring (3), the clamps (33) are adapted to the adjusting column (23), and lower wedge-shaped pieces (333) are fixedly provided in the middle of the clamps (33); a counterweight ring (34) is vertically movably provided above the movable ring (3), and upper wedge-shaped pieces (343) are adapted to correspond to the lower wedge-shaped pieces (333); a counterweight seat (5) is fixedly provided on one side of the fixed seat (2) on the top plate (19), and a counterweight block (51) is vertically provided inside the counterweight seat (5), and the top of the counterweight block (51) is connected to the movable ring (3) through a traction rope (311).

2. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 1, characterized in that: A cylinder assembly (15) is fixedly arranged on a side of the gear hobbing machine body (1) away from the tool holder platform (11); a piston rod of the cylinder assembly (15) is fixedly connected to a movable bottom plate (16); and a plurality of first guide columns (14) for guiding the movable bottom plate (16) are fixedly arranged above the waste trough (13).

3. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 2, characterized in that: The fixing seat (2) is provided with an inner cavity (22), an adjusting column (23) is vertically fixedly arranged in the inner cavity (22), a plurality of adjusting members (231) are fixedly stacked and sleeved on the adjusting column (23), the adjusting members (231) are arranged in a conical shape, the slopes of the tops of the adjusting members (231) are adapted to the slopes of the bottoms of the clamping members (33), the planes of the bottoms of the adjusting members (231) are adapted to the planes of the tops of the clamping members (33), and the adjusting cavities (232) are provided on both sides of the adjusting members (231).

4. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 3, characterized in that: Both sides of the inner ring of the movable ring (3) are provided with transverse cavities (30), the inner walls of the transverse cavities (30) are provided with first springs (332), the other ends of the first springs (332) are connected to the clamping members (33), and a transverse column (331) is fixedly provided on the side of the clamping members (33) facing the first spring (332), the transverse column (331) passes through the first spring (332) and extends out of the movable ring (3).

5. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 4, characterized in that: A plurality of second guide columns (342) for guiding the counterweight ring (34) are fixedly disposed vertically upward on the top of the movable ring (3), and vertical plates (341) are fixedly disposed vertically downward on both sides of the counterweight ring (34). Upper wedge-shaped pieces (343) are disposed at the bottom of the vertical plates (341), and the upper wedge-shaped pieces (343) are matched with the lower wedge-shaped pieces (333) in the middle of the clamping piece (33), and the lower wedge-shaped pieces (333) and the upper wedge-shaped pieces (343) are matched with the adjustment cavity (232).

6. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 5, characterized in that: Both sides of the top of the movable ring (3) are provided with movable grooves (36) extending downwards, and a support member (35) is provided in the movable groove (36) for guidance via a third guide column (361). Both sides of the bottom of the counterweight ring (34) are provided with support grooves (344) corresponding to the support member (35), and side plates (351) are fixedly provided on the outer sides of the support member (35).

7. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 6, characterized in that: A gantry (6) is fixedly arranged on the gear hobbing machine body (1), support rods (61) are fixedly and vertically arranged on both sides of the gantry (6), and vertical rods (62) for pushing the side plates (351) are movably arranged above the support rods (61) on both sides; spring grooves (60) are adapted to correspond to the vertical rods (62) on the gantry (6) and the support rods (61), and the ends of the vertical rods (62) are inserted into the spring grooves (60), and third springs (601) are installed on the side walls of the spring grooves (60), and the other ends of the third springs (601) are connected to the vertical rods (62).

8. The worm gear tooth groove processing device for producing special-shaped worm gears according to claim 7, characterized in that: A counterweight seat (5) is fixedly arranged on one side of the fixing seat (2) on the top plate (19), and a counterweight block (51) is movably arranged in the counterweight seat (5) guided by a fourth guide column (52) arranged vertically.

9. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 8, characterized in that: An extension plate (21) is fixedly provided on the top of the fixed seat (2) facing the side of the counterweight seat (5), and a plurality of rope guide grooves (211) are fixedly provided on the bottom of the extension plate (21); a rope seat (31) is fixedly provided on the outer side of the movable ring (3), a traction rope (311) is connected to the rope seat (31), and the other side of the traction rope (311) passes through the rope guide groove (211) and is fixedly connected to the top of the counterweight block (51).

10. A worm gear tooth groove processing device for producing special-shaped worm gears according to claim 9, characterized in that: A plurality of protective sleeves (43) are fixedly arranged vertically upward on the top of the lower pressure ring (41); the protective sleeves (43) are all located outside the second spring (42); the tops of the protective sleeves (43) pass through the upper pressure ring (4); and a top cover (431) is fixedly arranged on the top of the protective sleeves (43).

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