Grinding device for internal tooth forming

Abstract

The invention discloses a grinding device for internal tooth forming, and particularly relates to the technical field of grinding, the grinding device comprises a sliding rail frame, a positioning plate is slidably mounted at the top of the sliding rail frame, a grinding mechanism is slidably mounted on one side of the positioning plate, and a telescopic cylinder for driving the positioning plate to move is fixedly mounted on the side, away from the grinding mechanism, of the positioning plate; a positioning mechanism is fixedly installed at the top of the sliding rail frame, and a driving mechanism is rotationally installed on the outer wall of the positioning mechanism. A plurality of limiting assemblies which are annularly and sequentially arranged around the outer wall of the gear at equal intervals are arranged, the multiple limiting assemblies are adjusted through repulsive magnetic strips so as to limit and abut against the outer wall of the gear, and suction cups which are fixedly attracted to the two sides of the gear are arranged in a first clamping plate and a second clamping plate; the limiting work of the outer wall of the gear is simpler and more convenient, stress is uniform, deformation and damage are not prone to occurring, and actual use is more convenient.

Description

Technical Field

[0001] The present invention relates to the field of grinding technology, and more particularly to a grinding device for internal tooth shaping. Background Art

[0002] After the internal gears have gone through milling, shaping and other processing procedures, their accuracy often does not meet the use requirements, and they need to be further ground by a gear grinder. Grinding can achieve high-precision dimensional control of internal gears. The grinding device is a processing machine that uses a grinding wheel as a tool to process gears. There are a large number of abrasive grains on the surface of the grinding wheel. When the grinding wheel rotates and contacts the workpiece, the abrasive grains will grind, polish and grind the workpiece surface, so that the workpiece can achieve the required dimensional accuracy, shape accuracy and surface roughness.

[0003] The Chinese patent with the publication number CN118237998A discloses a face inner hole grinding device for a numerically controlled gear grinding machine tool, including a grinding assembly, including a workbench, a sliding seat, a moving seat, a rotating shaft, a grinding head and a fixing fixture, wherein the sliding seat is arranged on the top of the workbench, the moving seat is located on the top of the sliding seat, the rotating shaft is arranged on the moving seat, the grinding head is fixed to one end of the rotating shaft, and the fixing fixture is arranged on the top of the workbench; an auxiliary assembly is arranged on one side of the moving seat, and includes a threshing part, a moving part, a locking part, a rotating part and a transmission part. The beneficial effect of the present invention is: the inner hole of the workpiece is ground by the grinding assembly, and through the setting of the auxiliary assembly, when the grinding head is used for a period of time, the abrasive grains that are about to fall off the outside of the grinding head can be automatically shed on the outside of the grinding head, and the regularity of threshing the grinding head can be maintained. However, the patent cannot monitor the wear of the grinding wheel in real time during grinding, which will cause the accumulation of processing errors in the subsequent processing process and affect the processing accuracy of grinding.

[0004] At present, when grinding the surface of internal gear teeth, the traditional clamping method is mostly used to position and fix the gear, which is easy to cause wear on the gear surface. If the positioning is unstable during the processing, it is easy to cause a large deviation in the processing accuracy of the internal gear. When grinding the internal gear, the processing error and the wear of the grinding wheel cannot be detected in real time, affecting the actual processing accuracy. Therefore, the present invention proposes a grinding device for internal gear forming to solve the above problems. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a grinding device for internal tooth forming, by setting a plurality of limit assemblies which are arranged in a ring-shaped and equidistant state around the outer wall of the gear, and by adjusting the plurality of limit assemblies through repelling magnetic strips to limit and press the outer wall of the gear, and in combination with suction cups which are arranged inside the first clamping plate and the second clamping plate and adsorbed and fixed on both sides of the gear, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a grinding device for internal gear forming, comprising a slide rail frame, a positioning plate is slidably connected to the top of the slide rail frame, a grinding mechanism is slidably connected to one side of the positioning plate, and a telescopic cylinder for driving the positioning plate to move is fixedly connected to the side of the positioning plate away from the grinding mechanism; The top of the slide rail frame is fixedly connected with a positioning mechanism, and the outer wall of the positioning mechanism is rotatably connected with a driving mechanism; The positioning mechanism comprises a support frame fixedly connected to the top of the slide rail frame, a first motor is fixedly connected to one side of the support frame, a limit shaft arranged in a horizontal state is fixedly connected to one end of the first motor, a plurality of rod sleeves arranged in a vertical state are fixedly connected to the outer wall of the limit shaft, and the inner cavities of the plurality of rod sleeves are all slidably connected to the positioning frame; The outer walls of the plurality of positioning frames are fixedly connected to a first positioning slide bar slidably connected to the support frame, and the ends of the plurality of positioning frames away from the rod sleeve are fixedly connected to a first clamping plate perpendicular to the rod sleeve, a third positioning slide bar arranged in a horizontal state is fixedly connected to the vertical center line position of the first clamping plate, the outer wall of the third positioning slide bar is slidably connected to a second clamping plate, one end of the third positioning slide bar penetrating the second clamping plate is fixedly connected to a limiting plate, a magnetic strip is fixedly connected to the side of the limiting plate and the second clamping plate close to each other, and the magnetic strip arranged on one side of the limiting plate and the magnetic strip arranged on one side of the second clamping plate are arranged in a magnetic repulsive state; The grinding mechanism comprises a moving block, the front end of the moving block is rotatably connected to the first rotating shaft, the first rotating shaft is provided with a forming grinding wheel, the first rotating shaft is fixedly connected to the first pulley, the moving block is provided with a second motor, the output end of the second motor is rotatably connected to the second pulley, the first pulley and the second pulley are connected through a first connecting belt, the second pulley is fixedly connected to a third pulley, the moving block is provided with an avoidance groove running through, the avoidance groove is provided with a first fixed rod, the first fixed rod is rotatably connected to a measuring column, the bottom of the measuring column is fixedly connected with a sliding sheet, the sliding sheet is slidably connected with an arc-shaped metal rod, the avoidance groove is also provided with a resistance wire, the resistance wire is arranged in an arc state, the sliding sheet contacts the resistance wire, spring mounting holes are provided on both sides of the avoidance groove, each of the spring mounting holes is provided with a third spring, and the two third springs are in contact with the side of the measuring column.

[0007] Preferably, a third motor is fixedly connected to the top of the positioning plate, a guide groove is provided on the side of the positioning plate, a screw rod is provided in the guide groove, the output end of the third motor is rotatably connected to the screw rod, a guide block is threadedly connected to the screw rod, and the guide block is fixedly connected to the rear end of the moving block.

[0008] Preferably, a second rotating shaft is provided in the moving block, a fourth pulley is fixedly connected to the second rotating shaft, the fourth pulley is connected to the third pulley through a second connecting belt, the second rotating shaft is fixedly connected to a first ratchet, the first ratchet contacts with a first bevel gear, a first pawl is fixedly connected to one side of the first bevel gear, a second ratchet is also fixedly connected to the second rotating shaft, the second ratchet contacts with a second bevel gear, a second pawl is fixedly connected to one side of the second bevel gear, the first bevel gear and the second bevel gear are both slidably connected to the second rotating shaft, and a second fixed rod is provided in the moving block.

[0009] Preferably, the second fixed rod is rotatably connected to a third bevel gear, the third bevel gear is fixedly connected to a fifth pulley, the first bevel gear and the second bevel gear are respectively meshed with the third bevel gear, a collecting assembly is provided on the movable block below the forming grinding wheel, the collecting assembly includes a collecting cover, the collecting cover is fixedly connected to a collecting pipe, the collecting pipe is communicated with the collecting cover, a fixed frame is provided in the collecting pipe, a sixth pulley is rotatably connected to the fixed frame, the sixth pulley is rotatably connected to a fan, and the sixth pulley is connected to the fifth pulley via a third connecting belt.

[0010] Preferably, a second positioning slide rod for limiting the sliding direction of the second clamping plate is fixedly connected between the first clamping plate and the limit plate, the second clamping plate is slidably connected to the outer wall of the second positioning slide rod, and a positioning spring is fixedly connected between the second clamping plate and the first clamping plate, and the positioning spring is sleeved on the outer wall of the second positioning slide rod.

[0011] Preferably, the driving mechanism includes a first ring rotatably connected to the outer wall of the limiting shaft, the outer wall of the first ring is fixedly connected to a second ring fixedly connected to a plurality of rod sleeves, and the second ring is rotatably connected to the inner cavity of the first ring, and the interior of the second ring is fixedly connected to a plurality of arc-shaped slides slidably connected to the first positioning slide rod.

[0012] Preferably, an arc-shaped limiting groove is formed on the outer wall of the first collar, an arc-shaped gear plate slidably connected to the inner part of the arc-shaped limiting groove is fixedly connected to the outer wall of the second collar, and an electric gear plate is fixedly connected to the outer wall of the limiting shaft.

[0013] Preferably, a balance plate arranged in a horizontal state is fixedly connected inside the third positioning slide bar, a plurality of support rods arranged in an inclined state are hinged on both sides of the balance plate, and wear-resistant pads are hinged on the bottoms of the plurality of support rods; A first spring is fixedly connected between every two support rods that are symmetrically arranged about the vertical center line of the third positioning slide rod.

[0014] Preferably, each of the first clamping plate and the second clamping plate is provided with a bending portion arranged in a "7" shape, and the bending portion arranged on the first clamping plate and the bending portion arranged on the second clamping plate are arranged in a relative state.

[0015] Preferably, the inner cavities of the bent portions of the first splint and the second splint are both connected with thrust rods in a horizontally movable state, the inner cavities of the bent portions of the first splint and the second splint are fixedly connected with a vacuum tube parallel to the thrust rod, the inner cavity of the vacuum tube is connected with a piston rod fixedly connected to the thrust rod, one end of the vacuum tube is fixedly connected with a suction cup, and a second spring is fixedly connected between the suction cup and the piston rod.

[0016] Technical effects and advantages of the present invention: 1. The present invention provides a plurality of limit assemblies which are arranged in a circular shape and equidistantly in sequence around the outer wall of the gear, and enables the plurality of limit assemblies to be stably and synchronously adjusted, so that the outer wall of the gear can be evenly supported at a fixed point, thereby making the limiting work of the outer wall of the gear simpler, the operation is very convenient and stable, and more convenient for practical use.

[0017] 2. The present invention is provided with a device inside the first clamp and the second clamp that can move along with the thickness of the gear, thereby synchronously pushing the thrust rod to move inside the first clamp and the second clamp, and synchronously driving the piston rod to move out of the inner cavity of the vacuum tube, so as to extract the air between the suction cup and both sides of the gear and firmly position and adsorb both sides of the gear, thereby limiting the horizontal direction of the outer wall of the gear, thereby avoiding the problem that the traditional clamp can only limit the outer wall of the gear in one direction longitudinally, thereby preventing the gear from being laterally displaced and affecting the gear processing accuracy.

[0018] 3. The present invention allows the limiting components to fit and limit on both sides of the outer wall of the gear, and the synchronous wear-resistant pads come into contact with the outer ring of the gear and generate a resistance force, so that the two support rods are gradually expanded under the force, until the wear-resistant pads correspondingly arranged on the multiple third positioning slide bars are stably fitted on the outer wall of the gear, so that the outer wall of the gear can be stably and flexibly limited, and the traditional one-point positioning is converted into multi-point two-way auxiliary positioning, so that the gear limitation is more stable and it is not easy to cause indentations on the outer wall of the gear.

[0019] 4. The present invention causes the position of the resistance wire to change by the displacement of the sliding plate, and the current flowing through the resistance wire, the sliding plate and the arc-shaped metal rod also changes in real time. The measured current is different for different sliding plate displacement angles. After the forming grinding wheel completes the grinding of a single tooth, the third motor moves the forming grinding wheel downward by adjusting the lead screw. At this time, the telescopic cylinder retracts, and the driving mechanism deflects under the action of the first motor. The internal gear clamped by the positioning mechanism rotates, and the measuring column is in a vertical state under the action of two third springs. Through the cooperation of the sliding plate and the resistance wire, the current flowing through the resistance wire, the sliding plate and the arc-shaped metal rod is monitored and analyzed in real time. By real-time monitoring of the forming grinding wheel, it is determined when the forming grinding wheel needs to be trimmed, and the forming grinding wheel can be adjusted more effectively to improve the grinding efficiency while ensuring the processing accuracy.

[0020] 5. The sixth pulley is rotated through the third connecting belt, so that the fan rotates to exhaust air and remove the dust in the collection tube. When the fourth pulley rotates in the opposite direction, the second pawl drives the second ratchet and the second bevel gear to rotate. At this time, the third bevel gear meshes with the second bevel gear and rotates. The rotation direction of the third bevel gear remains unchanged. The third bevel gear drives the first bevel gear to rotate. Since the rotation directions of the first ratchet and the second ratchet are different, the rotation direction of the third bevel gear remains unchanged. Regardless of whether the forming grinding wheel is ground clockwise or counterclockwise, the fan can rotate in an unchanged direction, and the exhaust state is always maintained to ensure the cleanliness of the forming grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2It is a schematic diagram of the structure of the arc gear plate of the present invention.

[0023] Figure 3 It is a schematic diagram of the positioning mechanism structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 Enlarged view of part B.

[0025] Figure 5 It is a cross-sectional view of the support frame structure of the present invention.

[0026] Figure 6 It is a cross-sectional view of the positioning plate structure of the present invention.

[0027] Figure 7 It is a sectional view of the grinding mechanism structure of the present invention.

[0028] Figure 8 For the present invention Figure 7 Enlarged view of part C.

[0029] The accompanying drawings are marked as follows: 1, slide rail frame; 2, positioning mechanism; 21, support frame; 22, first motor; 23, limit shaft; 24, rod sleeve; 25, positioning frame; 26, first positioning slide bar; 27, first clamping plate; 28, third positioning slide bar; 29, second clamping plate; 210, limit plate; 211, magnetic strip; 212, balance plate; 213, support rod; 214, wear pad; 215, first spring; 216, thrust rod; 217, true Empty pipe; 218, piston rod; 219, suction cup; 220, second spring; 3, driving mechanism; 31, first ring; 32, second ring; 33, arc-shaped slide; 34, arc-shaped limit groove; 35, arc-shaped gear plate; 36, electric gear plate; 4, positioning plate; 41, third motor; 42, guide groove; 43, screw rod; 44, guide block; 5, grinding mechanism; 51, moving block; 511, first rotating shaft; 512, first pulley ; 513, forming grinding wheel; 514, second rotating shaft; 515, fourth pulley; 52, second motor; 521, second pulley; 522, third pulley; 53, first connecting belt; 54, avoidance groove; 541, first fixing rod; 542, measuring column; 543, spring mounting hole; 544, third spring; 55, sliding plate; 551 arc-shaped metal rod; 552, resistance wire; 56, second connecting belt; 57, first ratchet; 57 1. First bevel gear; 572. First pawl; 58. Second ratchet; 581. Second bevel gear; 582. Second pawl; 59. Second fixing rod; 591. Third bevel gear; 592. Fifth pulley; 6. Telescopic cylinder; 7. Collecting assembly; 71. Collecting cover; 711. Collecting tube; 712. Fixing frame; 713. Sixth pulley; 714. Fan; 72. Third connecting belt; 8. Second positioning slide rod; 801. Positioning spring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0031] Embodiment 1 like Figure 1 As shown, a grinding device for internal gear forming provided in this embodiment includes a slide rail frame 1, a positioning plate 4 is slidably connected to the top of the slide rail frame 1, a grinding mechanism 5 is slidably connected to one side of the positioning plate 4, and a telescopic cylinder 6 for driving the positioning plate 4 to move is fixedly connected to the side away from the grinding mechanism 5; The top of the slide rail frame 1 is fixedly connected with a positioning mechanism 2, and the outer wall of the positioning mechanism 2 is rotatably connected with a driving mechanism 3; Combination Figure 2 , Figure 3 As shown, the positioning mechanism 2 includes a support frame 21 fixedly connected to the top of the slide rail frame 1, one side of the support frame 21 is fixedly connected to a first motor 22, one end of the first motor 22 is fixedly connected to a horizontally arranged limit shaft 23, the outer wall of the limit shaft 23 is fixedly connected to a plurality of vertically arranged rod sleeves 24, the inner cavities of the plurality of rod sleeves 24 are slidably connected to positioning frames 25, wherein the plurality of rod sleeves 24 and the positioning frames 25 are all arranged in a ring-shaped manner around the outer circumferential surface of the limit shaft 23 in an equidistant state in sequence, the purpose of such arrangement is to enable the plurality of positioning frames 25 to evenly support the outer wall of the gear at a fixed point, so that the limiting of the gear is more stable, the outer walls of the plurality of positioning frames 25 are fixedly connected to a first positioning slide bar 26 slidably connected to the support frame 21, and the ends of the plurality of positioning frames 25 away from the rod sleeves 24 are fixedly connected to a first clamping plate 27 perpendicular to the rod sleeves 24, combined with Figure 3As shown, a third positioning slide bar 28 arranged in a horizontal state is fixedly connected to the vertical center line position of the first clamping plate 27, and a second clamping plate 29 is slidably connected to the outer wall of the third positioning slide bar 28. The first clamping plate 27, the third positioning slide bar 28 and the second clamping plate 29 are combined with each other to form an outer wall limiting component of a gear. One end of the third positioning slide bar 28 that penetrates the second clamping plate 29 is fixedly connected to a limiting plate 210, and a magnetic strip 211 is fixedly connected to the side where the limiting plate 210 and the second clamping plate 29 are close to each other. The magnetic strip 211 disposed on one side of the limiting plate 210 and the magnetic strip 211 disposed on one side of the second clamping plate 29 are arranged in a state of magnetic repulsion. The purpose of such arrangement is to make the second clamping plate 29 always move toward the first clamping plate 27 by the force of the two repelling magnetic strips 211, and then when the gear is limited between the first clamping plate 27 and the second clamping plate 29, the outer wall of the gear can be limited and clamped. In the normal state, the first clamping plate 27 and the second clamping plate 29 are affected by the magnetic strip 211. The second clamping plate 29 is limited and pressed against each other when the outer wall of the gear is placed between the first clamping plate 27 and the second clamping plate 29 by combining the two repelling magnetic strips 211, so that the two sides of the gear are limited and fixed by the first clamping plate 27 and the second clamping plate 29. In actual use, by pushing the plurality of first positioning slide bars 26 to drive the positioning frame 25 to slide synchronously in the inner cavity of the support frame 21, the first clamping plate 27, the third positioning slide bar 28 and the second clamping plate 29 provided at one end of the plurality of positioning frames 25 can be moved synchronously around the outer circumferential surface of the limiting shaft 23 as a whole, so that the length between the plurality of support frames 21 and the positioning frame 25 changes, until the first clamping plate 27, the third positioning slide bar 28 and the second clamping plate 29 can be limited and pressed against the outer wall of the gear, and the outer wall of the gear is equidistantly limited along its circumferential diameter direction, so that the limiting work of the outer wall of the gear is simpler, the operation is very convenient and stable, and it is more convenient for actual use. Figure 6 As shown, the grinding mechanism 5 includes a moving block 51 , a front end of which is rotatably connected to a first rotating shaft 511 , and a forming grinding wheel 513 is disposed on the first rotating shaft 511 .

[0032] Among them, refer to Figure 2-5 As shown, a second positioning slide bar 8 for limiting the sliding direction of the second clamping plate 29 is fixedly connected between the first clamping plate 27 and the limiting plate 210, the second clamping plate 29 is slidably connected to the outer wall of the second positioning slide bar 8, and a positioning spring is fixedly connected between the second clamping plate 29 and the first clamping plate 27, and the positioning spring is sleeved on the outer wall of the second positioning slide bar 8. Further, referring to Figure 2-4As shown, the driving mechanism 3 includes a first ring 31 rotatably connected to the outer wall of the limiting shaft 23, the outer wall of the first ring 31 is fixedly connected to a second ring 32 fixedly connected to a plurality of rod sleeves 24, and the second ring 32 is rotatably connected to the inner cavity of the first ring 31. The purpose of such a setting is that when the first ring 31 is rotated, the second ring 32 and the plurality of rod sleeves 24 are all set in a fixed state, and the interior of the second ring 32 is fixedly connected to a plurality of arc-shaped slides 33 slidably connected to the first positioning slide rod 26. When the second ring 32 is caused to When it rotates, the first positioning slide bar 26 can slide in the inner cavity of the arc-shaped slide bar 33, thereby driving the corresponding positioning frame 25 to adjust its displacement. The outer wall of the first ring 31 is provided with an arc-shaped limit groove 34, and the outer wall of the second ring 32 is fixedly connected with an arc-shaped gear plate 35 slidably connected to the inside of the arc-shaped limit groove 34, and the outer wall of the limit shaft 23 is fixedly connected with an electric gear plate 36. When in use, the second ring 32 is driven to rotate by starting the electric gear plate 36, thereby adjusting the extension or contraction length of the positioning frame 25.

[0033] Embodiment 2 When the inventors put the above embodiment into actual use, they found that when the internal gear is fixed and pressed, it is easy to damage the clamping position of the internal gear, which affects the accuracy and surface requirements of the internal gear and affects the subsequent assembly. In order to further optimize the clamping effect, the inventors made further improvements to the above embodiment.

[0034] Reference Figure 3 As shown, a balance plate 212 arranged in a horizontal state is fixedly connected inside the third positioning slide bar 28, and a plurality of support rods 213 arranged in an inclined state are hinged on both sides of the balance plate 212, and a wear-resistant pad 214 is hinged at the bottom of the plurality of support rods 213, wherein a first spring 215 is fixedly connected between each two support rods 213 arranged symmetrically about the vertical center line of the third positioning slide bar 28, and the first spring 215 in a normal state is in a tightened state to pull the two support rods 213 close together, so that the plurality of positioning frames 25 are synchronously moved down into the rod sleeve 24 The first clamping plate 27 and the second clamping plate 29 provided at one end of the positioning frame 25 are fitted and limited on both sides of the outer wall of the gear, and the synchronous wear-resistant pad 214 contacts the outer ring of the gear and generates a pressing force, so that the two support rods 213 are gradually forced to expand, until the wear-resistant pads 214 correspondingly provided on the plurality of third positioning slide bars 28 are stably fitted on the outer wall of the gear, and the outer wall of the gear can be stably and flexibly limited, and the traditional one-point positioning is converted into multi-point two-way auxiliary positioning, so that the limiting of the gear is more stable and it is not easy to cause indentations on the outer wall of the gear. Figure 2-5As shown, when the first clamping plate 27 and the second clamping plate 29 are both attached to the two sides of the balance plate 212, the first clamping plate 27 and the second clamping plate 29 are arranged in a mutually symmetrical state with respect to the horizontal center line of the balance plate 212, and the first clamping plate 27 and the second clamping plate 29 are both provided with a bending portion arranged in a "7" shape, and the bending portion arranged on the first clamping plate 27 and the bending portion arranged on the second clamping plate 29 are arranged in a relative state. The purpose of such arrangement is that when the two corresponding bending portions are respectively clamped on the outer wall of the gear and the two sides of the gear, the first clamping plate 2 7 and the second clamping plate 29 stably come into contact with the gear, and then clamp and limit it. The inner cavities of the bent parts of the first clamping plate 27 and the second clamping plate 29 are both in a horizontally movable state and are plugged with a thrust rod 216. The inner cavities of the bent parts of the first clamping plate 27 and the second clamping plate 29 are fixedly connected with a vacuum tube 217 parallel to the thrust rod 216. The inner cavity of the vacuum tube 217 is plugged with a piston rod 218 fixedly connected to the thrust rod 216. One end of the vacuum tube 217 is fixedly connected with a suction cup 219, and a second spring 220 is fixedly connected between the suction cup 219 and the piston rod 218. The second spring 220 is in a contracted state under normal conditions, stretching and contracting the piston rod 218 into the inner cavity of the vacuum tube 217, and simultaneously making the thrust rod 216 fixedly connected to the piston rod 218 extend out of the first clamping plate 27 and the second clamping plate 29. In actual use, when the corresponding bending portions of the first clamping plate 27 and the second clamping plate 29 are respectively clamped on the outer wall of the gear and the two sides of the gear, the two sides of the gear preferentially contact the thrust rod 216 and generate a resisting force on the thrust rod 216 during the clamping process, thereby causing the thrust rod 216 to move between the first clamping plate 27 and the second clamping plate 29. The second clamp 29 is internally moved, and the piston rod 218 is simultaneously driven to move out of the inner cavity of the vacuum tube 217, thereby extracting the air between the suction cup 219 and the two sides of the gear, so that when the two sides of the gear come into contact with the suction cup 219, the two sides of the gear can be more firmly positioned, adsorbed and fixed, thereby limiting the horizontal direction of the outer wall of the gear, making the gear limit more stable and less likely to move, thereby avoiding the problem that the traditional clamp can only limit the outer wall of the gear in one direction longitudinally, and then cause the gear to move laterally, affecting the problem of gear processing accuracy.

[0035] Embodiment 3 When the inventors put the above-mentioned embodiment into actual use, they found that if the forming grinding wheel 513 cannot be monitored in real time during use, it will lead to the accumulation of processing errors during the grinding process, affecting the grinding accuracy. In order to further improve the real-time monitoring of the forming grinding wheel 513 and improve the processing accuracy, the inventors made further improvements to the above-mentioned embodiment.

[0036] Reference Figure 1 , Figure 6-8As shown, the grinding mechanism 5 includes a moving block 51, the front end of the moving block 51 is rotatably connected to a first rotating shaft 511, a forming grinding wheel 513 is arranged on the first rotating shaft 511, a first pulley 512 is fixedly connected to the first rotating shaft 511, a second motor 52 is arranged in the moving block 51, an output end of the second motor 52 is rotatably connected to a second pulley 521, the first pulley 512 is connected to the second pulley 521 through a first connecting belt 53, the second pulley 521 is fixedly connected to a third pulley 522, an avoidance groove 54 is opened through the moving block 51, a first fixed rod 541 is arranged in the avoidance groove 54, a measuring column 542 is rotatably connected to the first fixed rod 541, and a bottom of the measuring column 542 is fixedly connected to A slide 55, in which an arc-shaped metal rod 551 is slidably connected, a resistance wire 552 is also provided in the avoidance groove 54, and the resistance wire 552 is arranged in an arc state. The slide 55 contacts the resistance wire 552, and spring mounting holes 543 are provided on both sides of the avoidance groove 54, and a third spring 544 is provided in each spring mounting hole, and the two third springs 544 are in contact with the side of the measuring column 542. A third motor 41 is fixedly connected to the top of the positioning plate 4, and a guide groove 42 is provided on the side of the positioning plate 4, and a screw rod 43 is provided in the guide groove 42. The output end of the third motor 41 is rotatably connected to the screw rod 43, and a guide block 44 is threadedly connected to the screw rod 43, and the guide block 44 is fixedly connected to the rear end of the moving block 51.

[0037] The positioning plate 4 and the third motor 41 adjust the lead screw 43 to displace the guide block 44 together with the grinding mechanism 5 and approach the internal gear in the positioning mechanism 2. The second motor 52 is started, and the moving block 51 brings the forming grinding wheel 513 into contact with the internal gear clamped by the positioning mechanism 2. The second motor 52 drives the second pulley 521 to rotate, and the first pulley 512 rotates through the first connecting belt. The forming grinding wheel 513 rotates at a high speed. While the forming grinding wheel 513 is grinding, the height of the measuring column 542 is greater than the height of the forming grinding wheel 513. The forming grinding wheel 513 extends out of the telescopic cylinder 6, pushing the positioning plate 4 together with the forming grinding wheel 513 to contact the internal teeth. While the forming grinding wheel 513 is grinding and feeding, the measuring column 542 contacts and tilts with the tooth root. The measuring column 542 drives the sliding plate 55 to move synchronously. The sliding plate 55 slides along the arc-shaped metal rod 551. The sliding plate 55 also contacts the resistance wire 552, and the resistance wire 552 is arranged in an arc shape. When the slider 55 is offset, the position of the resistance wire 552 changes, and the current flowing through the resistance wire 552, the slider 55 and the arc-shaped metal rod 551 also changes in real time. The measured current is different for different offset angles of the slider 55. After the forming grinding wheel 513 completes the grinding of a single tooth, the third motor 41 moves the forming grinding wheel 513 downward by adjusting the lead screw 43. At this time, the telescopic cylinder 6 retracts, and the driving mechanism 3 deflects under the action of the first motor. The internal gear clamped by the positioning mechanism 2 rotates, and the measuring column 542 is in a vertical state under the action of the two third springs 544. Through the cooperation of the slider 55 and the resistance wire 552, the current flowing through the resistance wire 552, the slider 55 and the arc-shaped metal rod 551 is monitored and analyzed in real time. By real-time monitoring of the forming grinding wheel 513, it is determined when the forming grinding wheel 513 needs to be trimmed, and the forming grinding wheel 513 is adjusted more effectively to improve the grinding efficiency while ensuring the processing accuracy.

[0038] Embodiment 4 When the inventor put the above-mentioned embodiment into actual use, it was found that the forming grinding wheel 513 would generate a large amount of dust during grinding. During the grinding process, the forming grinding wheel 513 is in direct contact with the internal gear, and heat is generated during the grinding process. If the dust is not cleaned in time due to the heat, it is easy to adhere to the surface of the forming grinding wheel 513, causing the gap between the abrasive grains in the forming grinding wheel 513 to become smaller, thereby affecting the grinding accuracy. In order to further improve the grinding accuracy of the forming grinding wheel 513, the inventor made further improvements to the above-mentioned embodiment.

[0039] Reference Figure 7 , 8As shown, a second rotating shaft 514 is provided in the moving block 51, and a fourth pulley 515 is fixedly connected to the second rotating shaft 514, and the fourth pulley 515 is connected to the third pulley 522 through a second connecting belt 56. A first ratchet 57 is fixedly connected to the second rotating shaft 514, and the first ratchet 57 contacts a first bevel gear 571, and a first pawl 572 is fixedly connected to one side of the first bevel gear 571. A second ratchet 58 is also fixedly connected to the second rotating shaft 514, and the second ratchet 58 contacts a second bevel gear 581, and a second pawl 582 is fixedly connected to one side of the second bevel gear 581. Both the first bevel gear 571 and the second bevel gear 581 are slidably connected to the second rotating shaft 514. A second fixed rod 59, the second fixed rod 59 is rotatably connected to a third bevel gear 591, the third bevel gear 591 is fixedly connected to a fifth pulley 592, the first bevel gear 571 and the second bevel gear 581 are respectively meshed with the third bevel gear 591, a collecting assembly 7 is provided on the moving block 51 below the forming grinding wheel 513, the collecting assembly 7 includes a collecting cover 71, the collecting cover 71 is fixedly connected to a collecting pipe 711, the collecting pipe 711 is communicated with the collecting cover 71, a fixed frame 712 is provided in the collecting pipe 711, a sixth pulley 713 is rotatably connected to the fixed frame 712, the sixth pulley 713 is rotatably connected to a fan 714, and the sixth pulley 713 is connected to the fifth pulley 592 via a third connecting belt 72.

[0040] When the second pulley 521 rotates, the third pulley 522 is driven to rotate. The fourth pulley 515 is driven by the second connecting belt 56 to rotate. The second rotating shaft 514 rotates together with the first ratchet 57. The first ratchet 57 drives the first pawl 572 and the first bevel gear 571 to rotate. Since the rotation direction of the second ratchet 58 is opposite to that of the first ratchet 57, when the first ratchet 57 rotates together with the first bevel gear 571, the first bevel gear 571 and the third bevel gear 591 are meshed with each other. Since the rotation directions of the first bevel gear 571 and the second bevel gear 581 are opposite, at this time, under the action of the third bevel gear 591, the third bevel gear 591 drives the second bevel gear 581 to rotate. The third bevel gear 591 is driven by the third connecting belt 72 to rotate. The sixth pulley 713 rotates to rotate the fan 714 to extract air, thereby extracting the dust in the collection tube 711. When the fourth pulley 515 rotates in the opposite direction, the second pawl 582 drives the second ratchet 58 and the second bevel gear 581 to rotate. At this time, the third bevel gear 591 meshes with the second bevel gear 581 to rotate, and the rotation direction of the third bevel gear 591 remains unchanged. The third bevel gear 591 drives the first bevel gear 571 to rotate. Since the rotation directions of the first ratchet 57 and the second ratchet 58 are set different, the rotation direction of the third bevel gear 591 remains unchanged. Regardless of whether the forming grinding wheel 513 is ground clockwise or counterclockwise, the rotation direction of the fan 714 remains unchanged, and the exhaust state is always maintained to ensure the cleanliness of the forming grinding wheel 513.

[0041] To sum up, multiple rod sleeves 24 and positioning frames 25 are arranged in a ring-shaped and equidistant state around the outer circumferential surface of the limiting shaft 23. The purpose of such arrangement is to enable multiple positioning frames 25 to evenly support the outer wall of the gear at a fixed point, so that the limiting of the gear is more stable. By pushing multiple first positioning slide bars 26 to drive the positioning frames 25 to slide synchronously in the inner cavity of the support frame 21, the first clamping plate 27 and the third positioning slide bar 28 and the second clamping plate 29 set at one end of the multiple positioning frames 25 can be moved synchronously around the outer circumferential surface of the limiting shaft 23 as a whole, so that the length between the multiple support frames 21 and the positioning frames 25 changes until the first clamping plate 27, the third positioning slide bar 28 and the second clamping plate 29 can be limited and pressed. On the outer wall of the gear, the outer wall of the gear is limited equidistantly along its circumferential diameter direction, which makes the limiting work of the outer wall of the gear simpler, very convenient and stable to operate, and more convenient for practical use. When the second ring 32 rotates, the first positioning slide bar 26 can slide in the inner cavity of the arc-shaped slide 33, and then drive the corresponding positioning frame 25 to adjust the displacement. The outer wall of the first ring 31 is provided with an arc-shaped limiting groove 34, and the outer wall of the second ring 32 is fixedly connected with an arc-shaped gear plate 35 slidably connected to the inside of the arc-shaped limiting groove 34. The outer wall of the limiting shaft 23 is fixedly connected with an electric gear plate 36. When in use, the second ring 32 is driven to rotate by starting the electric gear plate 36, and then the extension or contraction length of the positioning frame 25 is adjusted. The first spring 215 is in a normal state of contraction to pull the two support rods 213 together. When the multiple positioning frames 25 are synchronously moved down into the inner cavity of the rod sleeve 24, and the first clamping plate 27 and the second clamping plate 29 provided at one end of the positioning frame 25 are fitted and limited on both sides of the outer wall of the gear, the synchronous wear-resistant pad 214 contacts the outer ring of the gear and generates a resistance force, so that the two support rods 213 are gradually forced to expand, until the wear-resistant pads 214 correspondingly provided on the multiple third positioning slide bars 28 are stably fitted on the outer wall of the gear, the outer wall of the gear can be stably and flexibly limited, and the traditional one-point positioning is converted into multi-point two-way auxiliary positioning, so that the gear limit is more stable and not easy to cause indentations on the outer wall of the gear. 218 moves out of the inner cavity of the vacuum tube 217, and then the air between the suction cup 219 and the two sides of the gear is extracted, so that when the two sides of the gear come into contact with the suction cup 219, the two sides of the gear can be more firmly positioned, adsorbed and fixed, thereby limiting the horizontal direction of the outer wall of the gear, making the limiting of the gear more stable and not easy to move, thereby avoiding the problem that the traditional fixture can only limit the outer wall of the gear in one direction longitudinally, and then causing the gear to move laterally, affecting the problem of gear processing accuracy. The position of the slider 552 at the offset changes, and the current flowing through the resistance wire 552, the slider 55 and the arc-shaped metal rod 551 also changes in real time. The measured current is different for different offset angles of the slider 55.After the forming grinding wheel 513 completes the grinding of a single tooth, the third motor 41 moves the forming grinding wheel 513 downward by adjusting the lead screw 43. At this time, the telescopic cylinder 6 retracts, and the driving mechanism 3 deflects under the action of the first motor. The internal gear clamped by the positioning mechanism 2 rotates, and the measuring column 542 is in a vertical state under the action of the two third springs 544. Through the cooperation of the slide 55 and the resistance wire 552, the current flowing through the resistance wire 552, the slide 55 and the arc-shaped metal rod 551 is monitored and analyzed in real time. By real-time monitoring of the forming grinding wheel 513, it is determined when the forming grinding wheel 513 needs to be trimmed, and the forming grinding wheel 513 can be adjusted more effectively to improve the grinding efficiency while ensuring the processing accuracy. The third connecting belt 72 The sixth pulley 713 is rotated, and the fan 714 is rotated to extract air, and the dust in the collection tube 711 is extracted. When the fourth pulley 515 rotates in the opposite direction, the second ratchet 582 drives the second ratchet 58 and the second bevel gear 581 to rotate. At this time, the third bevel gear 591 is meshed with the second bevel gear 581 to rotate, and the rotation direction of the third bevel gear 591 remains unchanged. The third bevel gear 591 drives the first bevel gear 571 to rotate. Since the first ratchet 57 and the second ratchet 58 are set in different rotation directions, the rotation direction of the third bevel gear 591 remains unchanged. Regardless of whether the forming grinding wheel 513 is grinding clockwise or counterclockwise, the rotation direction of the fan 714 remains unchanged, and the exhaust state is always maintained to ensure the cleanliness of the forming grinding wheel 513.

[0042] 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 grinding device for internal gear forming, comprising a slide rail frame, a positioning plate is slidably connected to the top of the slide rail frame, a grinding mechanism is slidably connected to one side of the positioning plate, and a telescopic cylinder for driving the positioning plate to move is fixedly connected to the side of the positioning plate away from the grinding mechanism, characterized in that: The top of the slide rail frame is fixedly connected with a positioning mechanism, and the outer wall of the positioning mechanism is rotatably connected with a driving mechanism; The camming mechanism comprises a support frame fixedly connected to the top of the slide rail frame, one side of the support frame is fixedly connected to the first motor, one end of the first motor is fixedly connected to a limit shaft arranged in a horizontal state, the outer wall of the limit shaft is fixedly connected to a plurality of rod sleeves arranged vertically, the inner cavities of the plurality of rod sleeves are slidably connected to the positioning frames, the outer walls of the plurality of positioning frames are fixedly connected to the first positioning slide bars slidably connected to the rod sleeves, the ends of the plurality of positioning frames and away from the rod sleeves are fixedly connected to the first clamping plate perpendicular to the first clamping plate, the outer wall of the third positioning slide bar is fixedly connected to the third positioning slide bar slidably connected to the second clamping plate at the vertical center line position of the first clamping plate, the outer wall of the third positioning slide bar is slidably connected to the second clamping plate, the end of the third positioning slide bar penetrating the second clamping plate is fixedly connected to the limit plate, the limit plate and the second clamping plate are fixedly connected to the sides close to each other with a magnetic strip, and the magnetic strip arranged on one side of the limit plate and the magnetic strip arranged on one side of the second clamping plate are arranged in a magnetic repulsive state. The grinding mechanism comprises a moving block, the front end of the moving block is rotatably connected to the first rotating shaft, the first rotating shaft is provided with a forming grinding wheel, the first rotating shaft is fixedly connected to the first pulley, the moving block is provided with a second motor, the output end of the second motor is rotatably connected to the second pulley, the first pulley and the second pulley are connected through a first connecting belt, the second pulley is fixedly connected to a third pulley, the moving block is provided with an avoidance groove running through, the avoidance groove is provided with a first fixed rod, the first fixed rod is rotatably connected to a measuring column, the bottom of the measuring column is fixedly connected with a sliding sheet, the sliding sheet is slidably connected with an arc-shaped metal rod, the avoidance groove is also provided with a resistance wire, the resistance wire is arranged in an arc state, the sliding sheet contacts the resistance wire, spring mounting holes are provided on both sides of the avoidance groove, each of the spring mounting holes is provided with a third spring, and the two third springs are in contact with the side of the measuring column.

2. A grinding device for internal tooth shaping according to claim 1, characterized in that: A third motor is fixedly connected to the top of the positioning plate, a guide groove is provided on the side of the positioning plate, a screw rod is provided in the guide groove, the output end of the third motor is rotatably connected to the screw rod, a guide block is threadedly connected to the screw rod, and the guide block is fixedly connected to the rear end of the moving block.

3. A grinding device for internal tooth forming according to claim 1, characterized in that: The moving block is provided with a second rotating shaft, the second rotating shaft is fixedly connected with a fourth pulley, the fourth pulley is connected to the third pulley through a second connecting belt, the second rotating shaft is fixedly connected with a first ratchet, the first ratchet contacts with a first bevel gear, a first pawl is fixedly connected to one side of the first bevel gear, the second rotating shaft is also fixedly connected with a second ratchet, the second ratchet contacts with a second bevel gear, a second pawl is fixedly connected to one side of the second bevel gear, the first bevel gear and the second bevel gear are both slidably connected to the second rotating shaft, and a second fixed rod is provided in the moving block.

4. A grinding device for internal tooth forming according to claim 3, characterized in that: The second fixed rod is rotatably connected to a third bevel gear, the third bevel gear is fixedly connected to a fifth pulley, the first bevel gear and the second bevel gear are respectively meshed with the third bevel gear, a collecting assembly is provided on the moving block below the forming grinding wheel, the collecting assembly includes a collecting cover, the collecting cover is fixedly connected to a collecting pipe, the collecting pipe is communicated with the collecting cover, a fixed frame is provided in the collecting pipe, a sixth pulley is rotatably connected to the fixed frame, the sixth pulley is rotatably connected to a fan, and the sixth pulley is connected to the fifth pulley via a third connecting belt.

5. A grinding device for internal tooth forming according to claim 1, characterized in that: A second positioning slide bar is fixedly connected between the first clamping plate and the limiting plate, the second clamping plate is slidably connected to the outer wall of the second positioning slide bar, and a positioning spring is fixedly connected between the second clamping plate and the first clamping plate, and the positioning spring is sleeved on the outer wall of the second positioning slide bar.

6. A grinding device for internal tooth shaping according to claim 1, characterized in that: The driving mechanism includes a first ring rotatably connected to the outer wall of the limiting shaft, the outer wall of the first ring is fixedly connected to a second ring fixedly connected to a plurality of rod sleeves, and the second ring is rotatably connected to the inner cavity of the first ring, and the interior of the second ring is fixedly connected to a plurality of arc-shaped slides slidably connected to the first positioning slide rod.

7. A grinding device for internal tooth shaping according to claim 6, characterized in that: The outer wall of the first ring is provided with an arc-shaped limiting groove, the outer wall of the second ring is fixedly connected with an arc-shaped gear plate slidably connected inside the arc-shaped limiting groove, and the outer wall of the limiting shaft is fixedly connected with an electric gear plate.

8. A grinding device for internal tooth shaping according to claim 1, characterized in that: A balance plate arranged in a horizontal state is fixedly connected inside the third positioning slide bar, a plurality of support rods arranged in an inclined state are hinged on both sides of the balance plate, and wear-resistant pads are hinged on the bottoms of the plurality of support rods, and a first spring is fixedly connected between every two support rods symmetrically arranged about the vertical center line of the third positioning slide bar.

9. A grinding device for internal tooth shaping according to claim 5, characterized in that: The first clamping plate and the second clamping plate are both provided with a bending portion arranged in a "7" shape, and the bending portion arranged on the first clamping plate and the bending portion arranged on the second clamping plate are arranged in a relative state.

10. A grinding device for internal tooth shaping according to claim 6, characterized in that: The inner cavities of the bent parts of the first and second splints are both in a horizontally movable state and are plugged with thrust rods; the inner cavities of the bent parts of the first and second splints are fixedly connected with a vacuum tube parallel to the thrust rod; the inner cavity of the vacuum tube is plugged with a piston rod fixedly connected to the thrust rod; one end of the vacuum tube is fixedly connected with a suction cup; and a second spring is fixedly connected between the suction cup and the piston rod.

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