Anti-falling clamp for gear manufacturing

Abstract

The invention relates to the technical field of gear machining, in particular to an anti-disengaging clamp for gear manufacturing. Comprising an operation table, the operation table is in sliding connection with symmetrically-distributed sliding frames, the operation table is provided with a first power module for driving the symmetrically-distributed sliding frames to move, the sliding frames are rotationally connected with rotating shafts, and the operation table is provided with a second power module for driving the symmetrically-distributed rotating shafts to rotate. The rotating shaft is fixedly connected with pressure discs, the symmetrically distributed pressure discs are used for clamping a straight gear, the outer side of one pressure disc is fixedly connected with a first notch circular ring, the first notch circular ring is provided with uniformly distributed rectangular grooves, and the rectangular grooves are slidably connected with limiting plates. The spur gear is preliminarily clamped through the pressure disc, the limiting plate and the pressurizing plate are clamped between adjacent teeth of the spur gear, the spur gear is prevented from sliding relative to the pressure disc, and effective constraint on radial displacement and circumferential rotation of the spur gear is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gear machining, and particularly relates to a gear manufacturing anti-falling clamp. BACKGROUND

[0002] Gear is a core component in mechanical transmission, and its manufacturing precision directly affects the performance and service life of the transmission system. In the manufacturing process of the gear, especially in the finishing process such as gear hobbing, gear shaping, gear shaving and gear grinding, or in the post-treatment process of heat treatment, the gear workpiece needs to be firmly clamped on the machine tool worktable or the indexing head. Reliable clamping is the key prerequisite for ensuring machining accuracy, improving production efficiency and ensuring operation safety.

[0003] At present, in the process of gear polishing, two end faces (i.e. axial direction) of the gear workpiece need to be clamped by a gear clamp. Common implementation methods include hydraulic or pneumatic driven end face pressing plate or the use of mandrel cooperating with end face nut for pressing, etc. This clamping method mainly relies on the friction force between the end faces to resist the cutting force, centrifugal force or vibration generated in the machining process. Since it essentially depends on the friction force and lacks effective constraint on the radial displacement and circumferential rotation of the gear, when facing complex cutting force, lubrication environment and vibration, there are major technical defects such as poor stability, low safety, and easy to cause gear workpiece to fall off or shift, which not only seriously threatens the production safety, but also restricts the improvement of machining accuracy and optimization of production efficiency. SUMMARY

[0004] In order to overcome the shortcomings of the existing gear clamp lacking effective constraint on the radial displacement and circumferential rotation of the gear, the present application provides a gear manufacturing anti-falling clamp.

[0005] The technical scheme of the present application is as follows: a gear manufacturing anti-falling clamp, comprising an operation table, the operation table is slidably connected with symmetrically distributed sliding frames, the operation table is provided with a first power module for driving the symmetrically distributed sliding frames to move, the sliding frame is rotatably connected with a rotating shaft, the operation table is provided with a second power module for driving the symmetrically distributed rotating shafts to rotate, the rotating shaft is fixedly connected with a pressure disc, the symmetrically distributed pressure discs are used for clamping spur gears, the outer side of one pressure disc is fixedly connected with a first notched ring, the first notched ring is provided with uniformly distributed rectangular grooves, the rectangular grooves are slidably connected with limiting plates, and the limiting plates are inserted between adjacent teeth of the spur gear to limit the spur gear.

[0006] More preferably, the side of the pressure disc close to the spur gear is fixedly connected with circumferentially equidistantly distributed anti-skid pads for fixing the spur gear.

[0007] More preferably, the limiting plate is fixedly connected with a pressing plate, and the pressing plate is made of rubber material.

[0008] More preferably, the pressure disc is fixedly connected with a second notched ring away from the first notched ring, the second notched ring is provided with a number of limiting grooves equal to the number of limiting plates, and the limiting grooves are used for limiting the adjacent limiting plates.

[0009] More preferably, the thickness of the rectangular groove is greater than the thickness of the limiting plate, and the limiting groove is provided with an inclined surface near one side of the spur gear, facilitating the insertion of the limiting plate into the adjacent limiting groove.

[0010] More preferably, the first notched ring is fixedly connected with a notched guide ring, one side of the limiting plate near the first notched ring is bent towards the axis of the rotating shaft, the notched guide ring is used for limiting the uniformly distributed limiting plates, the limiting plates are made of elastic material, the uniformly distributed limiting plates are fixedly connected with a connecting ring, the connecting ring is fixedly connected with a driving frame in rotation connection with the rotating shaft, and the sliding frame near the first notched ring is provided with a third power module for moving the driving frame.

[0011] More preferably, the pressure disc and the second notched ring are both fixedly connected with elastic pull ropes between the operating table, the first notched ring and the second notched ring are both slidingly connected with T-shaped rods, the first notched ring and the adjacent T-shaped rod and the second notched ring and the adjacent T-shaped rod are both fixedly connected with tension springs, and the pressure disc is provided with circumferentially equidistantly distributed clamping grooves, and the T-shaped rods are used for being inserted into the clamping grooves of the adjacent pressure disc.

[0012] More preferably, the operating table is fixedly connected with symmetrically distributed limiting rods, the limiting rods are provided with guide surfaces, and the limiting rods are located on the movement paths of the adjacent T-shaped rods.

[0013] More preferably, one side of the rotating shaft is rotationally connected with a pressure ball, the rotating shaft near the pressure ball is slidingly connected with a plug rod, the plug rod and the rotating shaft near the pressure ball are fixedly connected with a spring, the rotating shaft near the pressure ball is provided with a pressure sensor for detecting the pressure of the plug rod, and the pressure ball is provided with a groove for inserting the plug rod.

[0014] More preferably, one side of the pressure ball near the spur gear is provided with a rough surface.

[0015] Compared with the prior art, the technical effects achieved by the present application are that: the present application preliminarily clamps the spur gear through the pressure disc, clamps into the adjacent teeth of the spur gear through the limiting plate and the pressing plate, prevents the spur gear from sliding relative to the pressure disc, increases the effective constraint on the radial displacement and circumferential rotation of the spur gear, improves the fixing effect on the spur gear, locks the pressure disc and the first gap ring and the pressure disc and the second gap ring through the T-shaped rod, so that the limiting plate and the pressing plate cannot rotate relative to the pressure disc, thereby preventing the spur gear from rotating relative to the pressure disc, clamping and fixing the spur gear at multiple places, preventing the spur gear from falling off between the two pressure discs during the process of machining the spur gear, periodically rotating the first gap ring and the second gap ring so that the teeth of the spur gear being machined are always located at the gaps of the first gap ring and the second gap ring, facilitating the machining of the teeth of the spur gear, and only fixing the teeth of the spur gear that are not in the machining state, improving the fixing effect on the spur gear without affecting the machining process of the spur gear, and the plug rod extrudes the pressure sensor to issue an alarm signal, prompting the operator that the spur gear has slipped, reducing the occurrence of dangerous accidents, and improving the operation safety. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of the present application; Figure 2 is a schematic diagram of the three-dimensional structure of the first gap ring and the driving frame of the present application; Figure 3 is a schematic diagram of the three-dimensional structure of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of the limiting plate and the pressing plate of the present application; Figure 6 is a schematic diagram of the three-dimensional structure of the T-shaped rod and the pressure disc of the present application; Figure 7 is a schematic diagram of the three-dimensional structure of the T-shaped rod removed from the clamping groove of the present application; Figure 8 is a schematic diagram of the three-dimensional structure of the pressure ball and the plug rod of the present application.

[0017] In the drawings, the following reference signs are included: 1 - operation table, 101 - spur gear, 2 - sliding frame, 3 - rotating shaft, 4 - pressure disc, 401 - anti-skid pad, 402 - clamping groove, 5 - first gap ring, 501 - rectangular groove, 6 - limiting plate, 7 - pressing plate, 8 - second gap ring, 801 - limiting groove, 9 - gap guide ring, 10 - connecting ring, 11 - driving frame, 12 - pressure ball, 13 - plug rod, 14 - pressure sensor, 111 - elastic pull rope, 222 - limiting rod, 333 - T-shaped rod. DETAILED DESCRIPTION

[0018] The application will be further described in connection with the embodiments illustrated in the drawings attached hereto.

[0019] Embodiment 1

[0020] A kind of gear manufacturing anti-drop clamp, as shown in Figures 1-5 It includes operation platform 1, operation platform 1 is provided with two groups of symmetrical distribution slide, the number of each group of slide is two, each group of slide in operation platform 1 is slidably connected with sliding frame 2, operation platform 1 is provided with the first power module that moves symmetrical distribution sliding frame 2, the first power module includes two hydraulic push rods that are installed on operation platform 1 and symmetrical distribution, the hydraulic push rod telescopic end of operation platform 1 is fixedly connected with adjacent sliding frame 2, sliding frame 2 is rotatably connected with rotating shaft 3, operation platform 1 is provided with the second power module that drives symmetrical distribution rotating shaft 3 to rotate, the second power module includes two motors that are installed on operation platform 1 and symmetrical distribution, the motor output shaft of operation platform 1 is driven by gear set and adjacent rotating shaft 3, rotating shaft 3 transverse movement still can guarantee the power transmission between operation platform 1 motor and adjacent rotating shaft 3, rotating shaft 3 is fixedly connected with pressure disc 4, the side close to straight gear 101 of pressure disc 4 is fixedly connected with anti-skid pad 401 that is distributed in the circumference equidistant, two symmetrical distribution pressure discs 4 are clamped to straight gear 101 through anti-skid pad 401 on it (the number of tooth is 20), the outside of right pressure disc 4 is fixedly connected with first notched ring 5, the notch of first notched ring 5 is located on the upper front side, first notched ring 5 is provided with evenly distributed rectangular groove 501, rectangular groove 501 is slidably connected with limiting plate 6, limiting plate 6 is inserted between adjacent teeth of straight gear 101 to limit straight gear 101, prevent straight gear 101 from rotating in the circumference, limiting plate 6 is fixedly connected with pressing plate 7, pressing plate 7 is made of rubber material, limiting plate 6 drives pressing plate 7 to be clamped between adjacent two teeth of straight gear 101, avoid limiting plate 6 directly contacting with straight gear 101 to wear straight gear 101, the left pressure disc 4 is fixedly connected with second notched ring 8, the notch of second notched ring 8 is same with the notch of first notched ring 5, the number of teeth exposed by straight gear 101 at the notch of second notched ring 8 and the notch of first notched ring 5 is four, second notched ring 8 is provided with limiting groove 801 that is equal to the number of limiting plate 6 and one-to-one correspondence, limiting groove 801 is used for limiting adjacent limiting plate 6, the thickness of rectangular groove 501 is greater than the thickness of limiting plate 6, to facilitate the right side of limiting plate 6 to deform, and then straight gear 101 is fixed through adjacent pressing plate 7, the width of right half of limiting groove 801 gradually increases from left to right, to facilitate limiting plate 6 to be inserted into adjacent limiting groove 801.

[0021] As Figures 2-5As shown, the right side of the first notched ring 5 is fixed with a notched guide ring 9, and the right side of the limiting plate 6 is bent towards the axis of the rotating shaft 3, which facilitates the deformation of the right side of the limiting plate 6 by pushing the notched guide ring 9. The notched guide ring 9 is used to limit the uniformly distributed limiting plate 6. The limiting plate 6 is made of elastic material, and the right side of the uniformly distributed limiting plate 6 is fixed with a connecting ring 10 inside the notched guide ring 9. The right side of the connecting ring 10 is fixed with a driving frame 11 which is rotationally connected with the rotating shaft 3. The right sliding frame 2 is provided with a third power module which drives the movement of the driving frame 11. The third power module includes two electric push rods which are fixed at the right sliding frame 2, and the extension ends of the two electric push rods are fixed with a connecting plate which is rotationally connected with the driving frame 11.

[0022] As shown in Figure 1 , Figure 2 , Figure 6 and Figure 7 , the lower side of the operation table 1 is provided with a T-shaped plate. The pressure disc 4 and the second notched ring 8 are both fixed with elastic pull ropes 111 between the T-shaped plate of the operation table 1. The two elastic pull ropes 111 pass through the operation table 1. The operation table 1 is fixed with two limiting rods 222 which are symmetrically distributed. The front side of the first notched ring 5 and the front side of the second notched ring 8 are both slidingly connected with T-shaped rods 333. The first notched ring 5 and the right T-shaped rod 333 and the second notched ring 8 and the left T-shaped rod 333 are both fixed with tension springs. The limiting rod 222 is provided with a guide surface. The pressure disc 4 is provided with five card slots 402 which are circumferentially and equidistantly distributed. The angle between each card slot 402 is 72°. The T-shaped rod 333 is used to be inserted into the card slot 402 of the adjacent pressure disc 4. The pressure disc 4 drives the T-shaped rod 333 to rotate counterclockwise (right view direction). When the limiting rod 222 contacts with the adjacent T-shaped rod 333, it is guided to move out of the adjacent card slot 402. Figure 2 When the limiting rod 222 contacts with the adjacent T-shaped rod 333, it is guided to move out of the adjacent card slot 402.

[0023] In the initial state, the distance between the two pressure discs 4 is farther than that shown in Figure 1 . The limiting plate 6, the connecting ring 10 and the driving frame 11 are all rightward compared with the positions shown in Figure 1 . The left side of the limiting plate 6 is not inserted between the first notched ring 5 and the second notched ring 8. The left side of the limiting plate 6 is located in the adjacent rectangular slot 501. The T-shaped rod 333 is inserted into the adjacent front card slot 402. The right pressure disc 4 and the first notched ring 5 are fixed by the right T-shaped rod 333 (as shown in Figure 6 ). The left pressure disc 4 and the second notched ring 8 are fixed by the left T-shaped rod 333. When it is needed to clamp the straight gear 101, the operator can operate the operation table 1 to move the T-shaped rod 333 to the left (as shown in Figure 1The straight gear 101 is placed between the two pressure plates 4, and then the operator drives the two sliding frames 2 to move close to each other by the first power module, and the two sliding frames 2 drive the two pressure plates 4 to move close to the straight gear 101 through the adjacent rotating shafts 3, and the pressure plate 4 drives the anti-skid pad 401 on it to move close to the straight gear 101, and when the anti-skid pad 401 contacts and fixes the straight gear 101, the operator stops the first power module, and the two pressure plates 4 no longer move close to each other, and the straight gear 101 clamping process is completed.

[0024] After the straight gear 101 clamping process is completed, the straight gear 101 is fixed, and the limiting plate 6 and the pressing plate 7 thereon are inserted between the adjacent teeth of the straight gear 101. In the process of inserting the limiting plate 6 and the pressing plate 7 thereon between the adjacent teeth of the straight gear 101, the pressing plate 7 does not contact the straight gear 101, which facilitates the simultaneous insertion of the limiting plate 6 and the adjacent pressing plate 7 between the adjacent teeth of the straight gear 101, and avoids scratching the straight gear 101 by contacting the limiting plate 6 and the straight gear 101. After the limiting plate 6 and the pressing plate 7 thereon are inserted between the adjacent teeth of the straight gear 101, the pressing plate 7 is pressed against the straight gear 101 and fixed. The specific operation is as follows: After the straight gear 101 clamping process is completed, the operator drives the driving frame 11 to move left by the third power module, and the driving frame 11 drives the connecting ring 10 and the limiting plate 6 to move left, and the limiting plate 6 drives the pressing plate 7 thereon to move left along the adjacent rectangular groove 501 and enter between the two teeth of the straight gear 101. Taking the upper limiting plate 6 as an example, the lower side of the pressing plate 7 does not contact the part between the two teeth of the straight gear 101. When the left side of the limiting plate 6 is inserted into the left limiting groove 801, the left side of the limiting plate 6 is gradually moved downward under the guidance of the limiting groove 801. When the left side of the limiting plate 6 is inserted into the limiting groove 801, the connecting ring 10 continues to move left, so that the right side bending part of the limiting plate 6 is moved downward under the guidance of the notch guide ring 9 and deformed (the thickness of the rectangular groove 501 is greater than the thickness of the limiting plate 6, so that the right side of the limiting plate 6 can be deformed). The left and right sides of the limiting plate 6 move downward, so that the pressing plate 7 moves downward and closely contacts the straight gear 101. When the pressing plate 7 closely contacts the straight gear 101, the operator stops the third power module, and the straight gear 101 fixing process is completed. The fixture does not insert the limiting plate 6 between the teeth of the straight gear 101 on the front upper side, and the notches of the first notch circular ring 5, the second notch circular ring 8 and the notch guide ring 9 are set to facilitate the operator to process the front upper side of the straight gear 101. The operator can adjust the size of the notches of the first notch circular ring 5, the second notch circular ring 8 and the notch guide ring 9 and the number of limiting plates 6 according to the actual use conditions of the processing equipment.

[0025] After the spur gear 101 is fixed, the operator grinds the four teeth of the exposed part on the upper front side of the spur gear 101 (this grinding process is not limited to grinding; this fixture can be used under other suitable conditions). For example, the lowest tooth of the exposed part of the spur gear 101 is processed. After the lowest tooth of the exposed part of the spur gear 101 is processed, the operator starts the second power module, which drives the two rotating shafts 3 to rotate counterclockwise. Figure 2 (Right view direction) Two rotating shafts 3 drive the spur gear 101 to rotate counterclockwise by 18° via two pressure plates 4 and anti-slip pads 401 (the machined spur gear 101 has 20 teeth, and the angle between each tooth is 18°). During the counterclockwise rotation of the pressure plates 4, the right pressure plate 4 drives the first notched ring 5 to rotate counterclockwise via its T-shaped rod 333, and the left pressure plate 4 drives the second notched ring 8 to rotate counterclockwise via its T-shaped rod 333. The first notched ring 5 and the second notched ring 8... Together, they drive the evenly distributed limiting plates 6 to rotate counterclockwise. The evenly distributed limiting plates 6 and the spur gear 101 rotate counterclockwise synchronously. The evenly distributed limiting plates 6 drive the connecting ring 10 and the drive frame 11 to rotate counterclockwise. During the counterclockwise rotation of the first notched ring 5 and the second notched ring 8, the two elastic pull ropes 111 are stretched. When the spur gear 101 rotates 18° counterclockwise, the operator stops the second power module. At this time, the second to last tooth of the exposed part of the spur gear 101 is processed from bottom to top.

[0026] During the gear machining process, the spur gear 101 is initially clamped by the anti-slip pad 401 on the pressure plate 4. The limiting plate 6 and the pressure plate 7 are inserted between the adjacent teeth of the spur gear 101 to prevent the spur gear 101 from sliding relative to the pressure plate 4. The right pressure plate 4 and the first notched ring 5 are locked by the right T-shaped rod 333, and the left pressure plate 4 and the second notched ring 8 are locked by the left T-shaped rod 333. This prevents the limiting plate 6 and the pressure plate 7 from rotating relative to the pressure plate 4, thus preventing the spur gear 101 from rotating relative to the pressure plate 4. By clamping and fixing the spur gear 101 at multiple points, it is prevented from falling out between the two pressure plates 4 during the machining process.

[0027] The operator repeats the above steps to sequentially process all the four teeth of the exposed part of the spur gear 101 from bottom to top. When the four teeth of the exposed part of the spur gear 101 are all processed, the spur gear 101 is counterclockwise rotated by 54° relative to the initial state. The operator continues to repeat the above steps to make the two pressure plates 4 counterclockwise rotate. Taking the right pressure plate 4 as an example, the pressure plate 4 drives the T-shaped rod 333 to counterclockwise rotate and contact and be limited by the adjacent limiting rod 222 to move out of the clamping groove 402, and there is a certain distance between the end of the T-shaped rod 333 and the clamping groove 402 (as shown in Figure 7 The operator repeats the above steps to sequentially process all the four teeth of the exposed part of the spur gear 101 from bottom to top. When the four teeth of the exposed part of the spur gear 101 are all processed, the spur gear 101 is counterclockwise rotated by 54° relative to the initial state. The operator continues to repeat the above steps to make the two pressure plates 4 counterclockwise rotate. Taking the right pressure plate 4 as an example, the pressure plate 4 drives the T-shaped rod 333 to counterclockwise rotate and contact and be limited by the adjacent limiting rod 222 to move out of the clamping groove 402, and there is a certain distance between the end of the T-shaped rod 333 and the clamping groove 402 (as shown in

[0028] In the process of the clockwise rotation of the first notch circular ring 5 (this process takes the first notch circular ring 5 as an example, and the clockwise rotation process of the second notch circular ring 8 is the same as that of the first notch circular ring 5), the first notch circular ring 5 drives the T-shaped rod 333 to clockwise rotate, and the T-shaped rod 333 is gradually no longer limited by the limiting rod 222. Since there is a certain distance between the end of the T-shaped rod 333 and the clamping groove 402 (as shown in Figure 7(As shown), therefore, the T-shaped rod 333 will not be inserted into the slot 402. Instead, the tension of the spring on the T-shaped rod 333 is released, causing the end of the T-shaped rod 333 to press tightly against the outside of the pressure plate 4. Then, the T-shaped rod 333 slides upward to the next slot 402 position. When the elastic pull rope 111 is reset, the first notched ring 5 rotates 72° clockwise, and the second notched ring 8 rotates 72° clockwise. At the same time, the T-shaped rod 333 aligns with the adjacent slot 402. The tension of the spring on the T-shaped rod 333 is released, causing the T-shaped rod 333 to be inserted into the slot 402. The first notched ring 5 and the pressure plate 4 on the right are fixed, and the second notched ring 8 and the pressure plate 4 on the left are fixed. Then, the operator drives the drive frame 11 to move to the left through the third power module and continues to repeat the above steps of fixing the spur gear 101 to fix the spur gear 101 again. The first notched ring 5 and the second notched ring 8 are periodically rotated to ensure that the teeth of the spur gear 101 being processed are always located at the notches of the first notched ring 5 and the second notched ring 8. This facilitates the processing of the teeth of the spur gear 101 and fixes only the teeth of the spur gear 101 that are not being processed. This improves the fixing effect of the spur gear 101 without affecting the processing of the spur gear 101. By continuously repeating the above steps, all the teeth of the spur gear 101 are processed. When the processing of the spur gear 101 is completed, the operator stops the second power module and controls the third power module to move the evenly distributed limiting plates 6 out from between the adjacent teeth of the spur gear 101. The operator also controls the first power module to move the two pressure plates 4 away from each other. The operator then removes the processed spur gear 101.

[0029] Example 2

[0030] Based on Example 1, a gear manufacturing anti-detachment clamp, such as Figure 3 , Figure 4 and Figure 8 As shown, a pressure ball 12 is rotatably connected to the right side of the left rotating shaft 3, and a plug rod 13 is slidably connected inside the left rotating shaft 3. A spring is fixed between the plug rod 13 and the left rotating shaft 3. A pressure sensor 14 for detecting the pressure of the plug rod 13 is provided on the left rotating shaft 3. An alarm device electrically connected to the pressure sensor 14 is installed on the operating table (1). The pressure ball 12 is provided with a groove for the plug rod 13 to be inserted. In the initial state, the right end of the plug rod 13 is inserted into the groove of the pressure ball 12. The right side of the pressure ball 12 is provided with a rough surface. The right side of the pressure ball 12 is flush with the right side of the anti-slip pad 401. When the pressure ball 12 and the spur gear 101 move relative to the pressure plate 4, the plug rod 13 moves out of the groove of the pressure ball 12.

[0031] When the left rotating shaft 3 drives the left pressure disc 4 and the antiskid pad 401 on it to clamp the spur gear 101, the rotating shaft 3 drives the pressure ball 12 to contact the left side of the spur gear 101. During the machining process of the spur gear 101, if the spur gear 101 slips relative to the antiskid pad 401, the left side of the spur gear 101 drives the pressure ball 12 to roll, the plug rod 13 is extruded from the groove of the pressure ball 12, the left side of the plug rod 13 extrudes the pressure sensor 14, the pressure sensor 14 transmits a signal and makes the alarm device give an alarm. At this time, the operator stops the machining process of the spur gear 101, prevents dangerous accidents from occurring subsequently, and adjusts the position of the spur gear 101 before machining the spur gear 101 again. The alarm signal transmitted by the plug rod 13 extruding the pressure sensor 14 prompts the operator that the spur gear 101 slips, reduces the occurrence of dangerous accidents, and improves the operation safety.

[0032] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A non-escape clamp for gear manufacturing, characterized by: The operation table (1) is slidably connected with symmetrically distributed sliding frames (2), the operation table (1) is provided with a first power module for driving the symmetrically distributed sliding frames (2) to move, the sliding frame (2) is rotatably connected with a rotating shaft (3), the operation table (1) is provided with a second power module for driving the symmetrically distributed rotating shafts (3) to rotate, the rotating shaft (3) is fixedly connected with a pressure disc (4), the symmetrically distributed pressure disc (4) is used for clamping a spur gear (101), the outer side of one pressure disc (4) is fixedly connected with a first notched ring (5), the first notched ring (5) is provided with uniformly distributed rectangular grooves (501), the rectangular groove (501) is slidably connected with a limiting plate (6), the limiting plate (6) is inserted between adjacent teeth of the spur gear (101) to limit the spur gear (101).

2. The anti-drop clamp for gear manufacturing according to claim 1, characterized in that: The side of the pressure disc (4) close to the spur gear (101) is fixedly connected with circumferentially equidistantly distributed antiskid pads (401) for fixing the spur gear (101).

3. The anti-extraction fixture for gear manufacturing according to claim 1, wherein: The limiting plate (6) is fixedly connected with a pressing plate (7), and the pressing plate (7) is made of rubber.

4. The anti-extraction fixture for gear manufacturing according to claim 1, wherein: The pressure disc (4) away from the first notched ring (5) is fixedly connected with a second notched ring (8), the second notched ring (8) is provided with limiting grooves (801) equal in number to the limiting plates (6) and corresponding one by one, and the limiting groove (801) is used for limiting adjacent limiting plates (6).

5. The anti-escape clamp for gear manufacturing according to claim 4, characterized in that: The thickness of the rectangular groove (501) is greater than the thickness of the limiting plate (6), and the limiting groove (801) is provided with an inclined surface on the side close to the spur gear (101), so that the limiting plate (6) is inserted into the adjacent limiting groove (801).

6. The anti-escape clamp for gear manufacturing according to claim 4, characterized in that: The first notched ring (5) is fixedly connected with a notched guide ring (9), the side of the limiting plate (6) close to the first notched ring (5) is bent towards the axis of the rotating shaft (3), the notched guide ring (9) is used for limiting the uniformly distributed limiting plates (6), the limiting plate (6) is made of elastic material, the uniformly distributed limiting plates (6) are fixedly connected with a connecting ring (10), the connecting ring (10) is fixedly connected with a driving frame (11) rotatably connected with the rotating shaft (3), and the sliding frame (2) close to the first notched ring (5) is provided with a third power module for driving the driving frame (11) to move.

7. The anti-escape clamp for gear manufacturing according to claim 6, characterized in that: The pressure disc (4) and the second notched ring (8) are both fixedly connected with elastic pull ropes (111) between the operation table (1), the first notched ring (5) and the second notched ring (8) are both slidably connected with T-shaped rods (333), the first notched ring (5) and the second notched ring (8) are both fixedly connected with tension springs between adjacent T-shaped rods (333), the pressure disc (4) is provided with circumferentially equidistantly distributed clamping grooves (402), and the T-shaped rod (333) is used for being inserted into the clamping groove (402) of the adjacent pressure disc (4).

8. The anti-escape clamp for gear manufacturing according to claim 7, characterized in that: The operating platform (1) is fixed with symmetrically distributed limiting rods (222), the limiting rods (222) are provided with guide surfaces, and the limiting rods (222) are located on the movement paths of adjacent T-shaped rods (333).

9. The anti-escape clamp for gear manufacturing according to claim 1, wherein: The rotating shaft (3) on one side is rotationally connected with a pressure ball (12), the rotating shaft (3) close to the pressure ball (12) is slidingly connected with a plug rod (13), a spring is fixed between the plug rod (13) and the rotating shaft (3) close to the pressure ball (12), the rotating shaft (3) close to the pressure ball (12) is provided with a pressure sensor (14) for detecting the pressure of the plug rod (13), and the pressure ball (12) is provided with a groove for inserting the plug rod (13).

10. The anti-escape clamp for gear manufacturing according to claim 9, characterized in that: The pressure ball (12) is provided with a rough surface on one side close to the spur gear (101).

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