Synchronizer gear ring internal gear automatic finishing device

Abstract

The present invention discloses an automatic finishing device for the inner teeth of a synchronizer gear ring, comprising a pusher assembly for finishing a workpiece to be processed, a down-pressing assembly that can move up and down, and an up-push assembly that can move up and down, wherein the down-pressing assembly is arranged above the up-push assembly, and the bottom surface of the down-pressing assembly is provided with a self-locking assembly that can realize the connection between the pusher assembly and the down-pressing assembly by clamping and releasing the pusher assembly, and the up-push assembly is arranged on the ground through a base, and the base is provided with a supporting assembly that is located outside the up-push assembly and is used to prevent the workpiece to be processed from moving up and down. A self-locking assembly that can realize the locking and releasing of the pusher assembly is provided, so that when taking out the parts after processing is completed, the pusher assembly does not need to be removed, thereby reducing the manual participation in the finishing process, and can realize the automatic finishing of the synchronizer gear ring, thereby improving work efficiency and reducing the possibility of safety accidents.

Description

Technical Field

[0001] The invention belongs to the technical field of synchronizer gear ring processing, and in particular relates to an automatic finishing device for inner teeth of a synchronizer gear ring. Background Art

[0002] The processing steps of the synchronizer gear ring are: firstly process the inner teeth on the blank, then fine-turn the outer circle, then process the inner tooth inverted cone and the slider groove on the inner teeth in sequence, then fine-tune the inner teeth, and finally process the locking angle of the inner teeth to obtain the synchronizer gear ring. In the prior art, a press is usually used to press the push knife downward. Specifically, the workpiece is placed in the corresponding position, and then the push knife is placed in the corresponding position. The press pushes the push knife downward to work. After the fine-tune is completed, the workpiece is taken out first, and then the push knife is taken out. During the whole process, since the push knife is heavy as a whole, it is not only inconvenient to pick up, but also after repeated picking up, the worker's fatigue increases, which is prone to safety accidents, or the push knife is detached and damaged. Summary of the invention

[0003] The present invention intends to provide an automatic finishing device for the inner teeth of a synchronizer gear ring, which can realize automatic finishing of the synchronizer gear ring, thereby avoiding the need to manually place and remove a push cutter during the finishing process, while also improving work efficiency.

[0004] To this end, the technical solution adopted by the present invention is: an automatic finishing device for the inner teeth of a synchronizer gear ring, comprising a pusher assembly for finishing a workpiece to be processed, a down-pressing assembly that can move up and down, and an up-pushing assembly that can move up and down, the down-pressing assembly is arranged above the up-pushing assembly, and the bottom surface of the down-pressing assembly is provided with a self-locking assembly that can realize the connection between the pusher assembly and the down-pressing assembly by clamping and releasing the pusher assembly, the up-pushing assembly is arranged on the ground through a base, and the base is provided with a supporting assembly located outside the up-pushing assembly and used to prevent the workpiece to be processed from moving up and down; when not in use, the pusher assembly is It is locked on the self-locking component, and there is a certain distance between the push knife assembly and the upper push assembly. After the workpiece to be processed is placed on the supporting component, the lower pressure component drives the push knife assembly to move downward, so that the push knife assembly first contacts with the upper push assembly, and then continues to move downward under the action of the lower pressure component. At the same time, the upper push assembly also moves downward to complete the fine finishing of the workpiece to be processed, and then the self-locking component is unlocked, the lower pressure component moves upward, and the workpiece after fine finishing is taken out, and then the lower pressure component moves downward, and the upper push assembly moves upward, so that the push knife assembly is locked on the self-locking component, and finally the push knife assembly leaves the upper push assembly upward under the drive of the lower pressure component.

[0005] As a preferred embodiment of the above scheme, the self-locking component includes a self-locking seat fixed to the bottom surface of the pressing component, and a locking flower axis that can move up and down and rotate in the self-locking seat is arranged in the self-locking seat, and a return component for realizing the up and down movement and return of the locking flower axis is arranged above the locking flower axis, and a conversion component for converting the up and down movement of the locking flower axis into rotation and located in the self-locking seat is arranged at the upper end of the locking flower axis, a spline protrusion is arranged at the lower end of the locking flower axis, and a flower axis hole for inserting the locking flower axis at the upper end of the push knife assembly, a spline groove matching the spline protrusion is arranged at the upper end of the flower axis hole, and the lower end of the flower axis hole matches the outer diameter of the spline protrusion.

[0006] Further preferably, the return assembly includes a spring shaft core arranged on a self-locking seat, wherein a spring hole for placing a return spring and which is smaller at the top and larger at the bottom is arranged in the spring shaft core, the upper end of the return spring abuts against the spring hole step, and the other end abuts against the upper end of the locking flower axis.

[0007] The lock member is a pair of locks which are connected along the length of the handle to the upper and lower edges of the lock member, the lock member being arranged so that the lock member can move relative to the handle as the upper and lower edges of the lock member are locked. The support ring is a relative distance between the inner circles of the rotating face discs, a first stator groove is vertically arranged in the self-locking seat, and a second stator groove corresponding to the first stator groove is vertically connected and arranged on the outer sides of the upper rotating face disc, the support ring and the lower rotating face disc, and the first stator groove and the second stator groove contain stators for preventing the upper rotating face disc, the support ring and the lower rotating face disc from rotating, a rotating sleeve is arranged on the upper end of the locking flower axis, and a rotating shaft that can be stuck at the rotation concave point position is horizontally arranged on the rotating sleeve; when the locking flower axis moves upward to the highest point, the rotating shaft is stuck on the rotation concave point of the upper rotating face disc, and when the locking flower axis moves downward to the lowest point, the rotating shaft is stuck on the rotation concave point of the lower rotating face disc.

[0008] Further preferably, the vertical distance between the rotation concave point on the upper rotating face disc and the rotation concave point on the lower rotating face disc is the distance for the locking flower axis to move up and down, the inclined surface on the lower rotating face disc and the inclined surface on the upper rotating face disc are staggered, and the number of the rotation concave points is twice the number of the spline protrusions.

[0009] Further preferably, the self-locking seat includes an upper base plate fixed on the pressing assembly, a cover sleeve which can be arranged outside the conversion assembly is arranged below the upper base plate, a cover plate is arranged below the cover sleeve, a positioning hole is arranged on the cover plate, and a positioning pin which can be inserted into the positioning hole is arranged on the push knife assembly.

[0010] Further preferably, the support assembly includes an upper tray arranged above the base through a column, a workpiece tray with a larger top and a smaller bottom is arranged in the upper tray, a workpiece hole for placing the workpiece is arranged on the inner side of the workpiece tray, the upper end of the workpiece hole is arranged as a conical hole with a larger top and a smaller bottom, and the lower end of the workpiece hole is arranged as a stepped hole with a larger top and a smaller bottom.

[0011] The cam is configured to move the tool holder forwardly and downwardly, and the cam is configured to move the tool holder forwardly and downwardly, and the cam is configured to move the tool holder forwardly and downwardly, and the cam is configured to move the tool holder forwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the cam is configured to move the tool holder backwardly and downwardly, and the

[0012] Further preferably, the pressing down assembly includes a top plate arranged above the pushing up assembly through a support column, a pressing down cylinder is arranged on the top plate, a movable plate is arranged after the output end of the pressing down cylinder passes downward through the top plate, the movable plate is slidably connected to the support column, and the self-locking assembly is arranged on the bottom surface of the movable plate.

[0013] Further preferably, there is also a loading robot for placing the workpiece to be processed and removing the workpiece after processing. The loading robot clamps the workpiece by a clamping fixture. The clamping fixture includes a clamp plate, which is rotatably arranged on the loading robot. Two finger cylinders are arranged on the clamp plate at intervals on the left and right.

[0014] The beneficial effects of the present invention are as follows: a self-locking assembly is provided which can realize the locking and loosening of the push knife assembly, so that when the parts are taken out after the processing is completed, the push knife assembly does not need to be removed, thereby reducing the manual participation in the finishing process, and realizing the automatic finishing of the synchronizer gear ring, thereby improving the work efficiency and reducing the possibility of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of the present invention.

[0016] Figure 2 The three-dimensional Figure 2 (Without cylinder control part).

[0017] Figure 3 It is a stereoscopic diagram of the support assembly and the push-up assembly in the present invention.

[0018] Figure 4 The three-dimensional structure of the support assembly and the push-up assembly in the present invention Figure 2 (With workpiece to be processed).

[0019] Figure 5 It is an exploded view of the support assembly and the push-up assembly in the present invention.

[0020] Figure 6 It is a schematic diagram of the support assembly and the push-up assembly in the present invention.

[0021] Figure 7 It is a stereoscopic view of the push blade assembly and the self-locking assembly in the present invention.

[0022] Figure 8 Schematic diagram of the push blade assembly and the self-locking assembly in the present invention Figure 1 (After the locking flower axis moves upward relative to the self-locking seat).

[0023] Fig. 9 Schematic diagram of the push blade assembly and the self-locking assembly in the present invention Figure 2 (When locking the flower axis in its natural state).

[0024] Fig.10 It is an exploded view of the self-locking component in the present invention.

[0025] Fig.11 It is a three-dimensional diagram of the belt feeding robot of the present invention.

[0026] Fig.12 It is a three-dimensional diagram of the clamping fixture in the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below by way of embodiments and in conjunction with the accompanying drawings:

[0028] like Figure 1-Figure 12As shown, an automatic finishing device for the inner teeth of a synchronizer gear ring is mainly composed of a push knife assembly A, a pressing assembly B, an upper push assembly C, a self-locking assembly D, a support assembly E and a base 1, wherein the push knife assembly is mainly used for finishing the workpiece to be processed, that is, finishing the inner teeth of the synchronizer gear ring, the pressing assembly B and the upper push assembly C can both move up and down, the support assembly is mainly used for supporting the workpiece to be processed to prevent the workpiece to be processed from moving together when the upper push assembly moves downward, the upper push assembly is mainly used for giving way to the push knife assembly when finishing the inner teeth and resetting the push knife assembly, the self-locking assembly is mainly used for locking and loosening the push knife assembly, thereby realizing the connection between the pressing assembly and the push knife assembly, and when the push knife assembly is locked on the self-locking assembly, the pressing assembly can move with the push knife assembly.

[0029] The upper push assembly C is arranged on the ground through the base 1, the lower push assembly B is arranged above the upper push assembly C, the self-locking assembly D is arranged on the bottom surface of the lower push assembly B, and the supporting assembly E is also arranged on the base and located outside the upper push assembly C. When the entire device is not in use, the push blade assembly A is locked on the self-locking assembly D, and there is a certain distance between the push blade assembly A and the upper push assembly C, that is, the push blade assembly is suspended above the upper push assembly through the self-locking assembly.

[0030] The working process is: after placing the workpiece to be processed on the support component E, the downward pressure component B drives the push knife component A to move downward, so that the push knife component A first contacts the upper push component C, and then continues to move downward under the action of the downward pressure component B, and the upper push component C also moves downward at the same time. In this process, the fine finishing of the workpiece to be processed is completed, and then the self-locking component D is unlocked, and the downward pressure component B moves upward. At this time, the push knife assembly is supported by the upper push component. After the workpiece after fine finishing is taken out, the downward pressure component B is moved downward again, and the upper push component C moves upward at the same time, so that the push knife assembly A is locked on the self-locking component D. Finally, the push knife assembly A leaves the upper push component C upward under the drive of the downward pressure component B.

[0031] The specific structure of the self-locking component D includes a self-locking seat 2 fixed to the bottom surface of the pressing component B, and a locking flower shaft 3 that can move up and down and rotate in the self-locking seat 2 is arranged in the self-locking seat 2. In order to achieve locking of the locking flower shaft after being inserted into the push knife assembly, a spline protrusion 3a is arranged at the lower end of the locking flower shaft 3, and a flower shaft hole 4 for inserting the locking flower shaft 3 is arranged at the upper end of the push knife assembly A, and a spline groove 4a matching the spline protrusion 3a is arranged at the upper end of the flower shaft hole 4, and the lower end of the flower shaft hole 4 matches the outer diameter of the spline protrusion 3a. When the locking flower shaft is inserted downward, the spline protrusion corresponds vertically to the spline groove. When the locking flower shaft is inserted, the push knife assembly needs to move under the action of the pressing component, and the spline protrusion is located at the lower end of the flower shaft hole and vertically staggered and corresponding to the spline groove.

[0032] In order to realize the rotation of the locking flower axis, a conversion component located in the self-locking seat 2 is provided at the upper end of the locking flower axis 3 for converting the up-and-down movement of the locking flower axis 3 into rotation, and a return component for realizing the up-and-down movement and return of the locking flower axis 3 is provided above the locking flower axis 3. The unlocking process of the self-locking component is as follows: when the lower pressing component moves downward, the push knife component will first contact the upper pushing component, and then the lower pressing component will continue to move downward, while the upper pushing component will not move first, the locking flower axis will move upward relative to the self-locking seat, and then the locking flower axis will rotate under the action of the conversion component, and then when the lower pressing component moves upward, the self-locking component and the push knife component can be separated, and at the same time, the locking flower axis returns to its original position under the action of the return component.

[0033] The specific structure of the return assembly includes a spring shaft core 5 arranged on the self-locking seat 2, a spring hole 5a with a small upper part and a large lower part for placing a return spring 6 is arranged in the spring shaft core 5, the upper end of the return spring 6 abuts on the step of the spring hole 5a, and the other end abuts on the upper end of the locking flower shaft 3. In this embodiment, the upper end of the spring shaft core is directly screwed on the self-locking seat.

[0034] To facilitate the installation of the conversion assembly and the return assembly, the self-locking seat 2 includes an upper base plate 2b fixed on the pressing assembly B, a cover sleeve 2c that can cover the outside of the conversion assembly is arranged below the upper base plate 2b, and a cover plate 2d is arranged below the cover sleeve 2c. To facilitate the connection between the push knife assembly and the self-locking assembly, a positioning hole 2e is arranged on the cover plate 2d, and a positioning pin 13 that can be inserted into the positioning hole 2e is arranged on the push knife assembly A. Since the positioning pin can move up and down relative to the positioning hole, the positioning hole is the inner hole of the shaft sleeve embedded in the cover plate.

[0035] The conversion component specifically includes an upper rotating faceplate 7 and a lower rotating faceplate 8, both of which are arranged in the self-locking seat 2 and are spaced apart from each other. A circle of rotating protrusions a is extended downward from the inner circle of the upper rotating faceplate 7 and upward from the inner circle of the lower rotating faceplate 8. A plurality of rotating protrusions b and rotating concave points c equal in number to the rotating protrusions b are spaced apart on the rotating protrusions a, and the rotating protrusions b are cross-arranged with the rotating concave points. An inclined surface d is arranged between one side of the rotating protrusion b and an adjacent rotating concave point c, and a straight surface e is arranged between the other side and another adjacent rotating concave point c. The rotating protrusions b, the rotating concave points c, the inclined surface d, and the straight surface e are all transitioned through circular arcs. The rotating concave point c of the upper rotating faceplate 7 is arranged correspondingly to the highest point of the inclined surface d on the lower rotating faceplate 8, and the rotating concave point c of the lower rotating faceplate 8 is arranged correspondingly to the lowest point of the inclined surface d on the upper rotating faceplate 7. At the same time, a rotating sleeve 11 is provided on the upper end of the locking flower axis 3, and a rotating shaft 12 that can be stuck at the position of the rotating concave point c is horizontally arranged on the rotating sleeve 11. When the locking flower axis 3 moves upward to the highest point, the rotating shaft 12 is stuck on the rotating concave point c of the upper rotating face plate 7, and when the locking flower axis 3 moves downward to the lowest point, the rotating shaft 12 is stuck on the rotating concave point c of the lower rotating face plate 8.

[0036] A support ring 9 for maintaining the relative distance between the inner rings of the upper rotating faceplate 7 and the lower rotating faceplate 8 is provided on the outer rings of the upper rotating faceplate 7 and the lower rotating faceplate 8. In order to ensure that the upper rotating faceplate 7 and the lower rotating faceplate 8 will not rotate when the locking flower axis moves upward, a first stator slot 2a is vertically provided in the self-locking seat 2, and a second stator slot f corresponding to the first stator slot 2a is vertically connected and provided on the outer side surfaces of the upper rotating faceplate 7, the support ring 9 and the lower rotating faceplate 8. The first stator slot 2a and the second stator slot f contain a stator 10 for preventing the upper rotating faceplate 7, the support ring 9 and the lower rotating faceplate 8 from rotating.

[0037] In order to facilitate the determination of the rotation angle of the locking flower axis, the vertical distance between the rotation concave point on the upper rotating faceplate and the rotation concave point on the lower rotating faceplate is the distance of the up and down movement of the locking flower axis 3. When the locking flower axis 3 moves upward relative to the self-locking seat, the rotating sleeve 11 and the rotating shaft are driven to move upward, and the rotating shaft moves upward from the rotation concave point of the lower rotating faceplate, and first contacts with the lowest point of the inclined surface on the upper rotating faceplate 7, and then the locking flower axis continues to move upward. Since the upper rotating faceplate will not rotate under the action of the stator, the rotating shaft moves along the inclined surface. Due to the special setting of the inclined surface on the rotating faceplate, the rotating sleeve, the rotating shaft and the locking flower axis can be rotated. When the rotating shaft falls along the inclined surface to the rotation concave point of the upper rotating faceplate, the locking flower axis cannot move upward. When the locking flower axis moves downward relative to the self-locking seat, the rotating sleeve and the rotating shaft are driven to move downward. The rotating shaft moves downward from the rotating concave point of the upper rotating flower disc and first contacts the highest point of the inclined surface on the lower rotating flower disc. Then the locking flower axis continues to move downward. Since the lower rotating flower disc will not rotate under the action of the stator, the rotating shaft moves along the inclined surface. Due to the special setting of the inclined surface on the rotating flower disc, the rotating sleeve, the rotating shaft and the locking flower axis can rotate. When the rotating shaft falls along the inclined surface to the rotating concave point on the lower rotating flower disc, the locking flower axis cannot move downward.

[0038] Each time the self-locking assembly releases or locks the push knife assembly, the locking flower shaft needs to move upward first and then move downward, so that the locking flower shaft needs to rotate twice to achieve the dislocation or alignment of the spline protrusion and the spline groove in the vertical direction. Therefore, when the locking flower shaft moves upward or downward, the rotation direction of the locking flower shaft is the same, that is, the inclined surface d on the lower rotating face plate 8 and the inclined surface d on the upper rotating face plate 7 are staggered. Since it is necessary to rotate twice in the same direction to achieve the dislocation or alignment of the spline protrusion and the spline groove in the vertical direction, the number of rotating concave points c is twice the number of spline protrusions 3a. In this embodiment, four spline protrusions and spline grooves are evenly arranged along the circumference, and eight rotating concave points and rotating convex points are arranged. The rotating shaft can be arranged with eight or four, and the rotating shaft adopts a cam bearing.

[0039] In order to prevent the spring mandrel from rotating with the rotating sleeve, in this embodiment, the inner diameter of the rotating sleeve is larger than the inner diameter of the spring shaft core, and a bearing is arranged between the rotating sleeve and the spring shaft core, and the upper end of the bearing is limited by a retaining ring, and the lower end is limited by the upper step of the three-step stepped hole in the rotating sleeve. In order to facilitate the rotation of the locking flower shaft relative to the self-locking seat, a bearing is also arranged between the self-locking seat and the locking flower shaft, and the lower end of the bearing is positioned by the step of the stepped hole in the cover plate, and the upper end of the bearing is limited by the bearing end cover on the top surface of the fixed cover plate, and the bearing end cover is provided with a yielding structure for the shaft sleeve. In order to ensure that the locking flower shaft and the rotating sleeve can rotate and move together, a pin is arranged between the locking flower shaft and the rotating sleeve, and the upper end of the locking flower shaft passes through the rotating sleeve and is pressed on the lower step of the three-step stepped hole in the rotating sleeve by a bolt.

[0040] The specific structure of the support assembly E includes an upper tray 15 arranged above the base 1 through a column 14, a workpiece tray 16 with a larger upper portion and a smaller lower portion is arranged in the upper tray 15, and a workpiece hole 16a for placing the workpiece is arranged inside the workpiece tray 16. To facilitate the insertion and removal of the workpiece, the upper end of the workpiece hole 16a is arranged as a tapered hole with a larger upper portion and a smaller lower portion. To support the workpiece, the lower end of the workpiece hole 16a is arranged as a stepped hole with a larger upper portion and a smaller lower portion.

[0041] The specific structure of the push assembly C includes a push cylinder 17 arranged in the base 1, and the output end of the push cylinder 17 passes through the base 1 upward and is arranged on the push knife directional column 18. In order to facilitate the accurate insertion of the push knife assembly, a plurality of positioning columns 19 that can be inserted into the lower end of the push knife assembly A are arranged on the top surface of the push knife directional column 18. In order to realize the upward movement of the push knife assembly after the fine finishing is completed, a push knife tray 20 for contacting the bottom surface of the push knife assembly A is arranged at the upper end of the push knife directional column 18. In order to realize the guidance of the push assembly when it moves up and down and the positioning of the workpiece when it is placed, a chuck 21 is arranged at the lower end of the push knife directional column 18, and a sliding tray 22 slidably connected to the column 14 is arranged outside the chuck 21, and a positioning plate 23 is arranged between the push knife tray 20 and the chuck 21, and three positioning blocks 24 for contacting and positioning with the inner side of the workpiece to be processed are arranged at intervals on the positioning plate 23.

[0042] In this embodiment, the chuck 21 includes an upper chuck 21a arranged above the sliding tray 22 and a lower chuck 21b arranged below the sliding tray 22. When the upper chuck 21a and the lower chuck 21b are not tightened, the upper chuck 21a can rotate relative to each other, so that when the device is debugged, the teeth of the positioning block can be adjusted to align with the tooth cutting edge on the push knife assembly, thereby ensuring smooth processing.

[0043] The specific structure of the pressing component B includes a top plate 26 arranged above the pushing component C through a support column 25, a pressing cylinder 27 is arranged on the top plate 26, a moving plate 28 is arranged after the output end of the pressing cylinder 27 passes downward through the top plate 26, and the moving plate 28 is slidably connected to the support column 25, and the self-locking component D is arranged on the bottom surface of the moving plate 28.

[0044] In order to realize automatic loading and unloading of workpieces, a loading robot F is also provided for placing the workpieces to be processed and removing the workpieces after processing, and the loading robot F clamps the workpieces through a clamping fixture G. The clamping fixture G includes a clamping plate 29, and the clamping plate 29 is rotatably arranged on the loading robot F. Two finger cylinders 30 are arranged on the clamping plate 29 at intervals on the left and right. At the same time, areas for placing the workpieces to be processed and the workpieces after processing can be arranged on both sides of the loading robot. Since there will be debris after fine finishing, a collection component with a negative pressure fan is also provided, and the collection component can collect the debris through the gap between the inner side of the workpiece tray and the outer side of the positioning plate.

[0045] The specific working process of this embodiment is as follows: after the workpiece is placed, the downward pressure cylinder works to drive the push knife assembly to move downward. The bottom surface of the push knife assembly first contacts with the push knife tray, and the downward pressure cylinder continues to work. Since the bottom surface of the locking flower axis contacts with the push knife assembly, the locking flower axis cannot move, and the self-locking seat can move downward, and then drive the upper rotating face plate, the lower rotating face plate, the support ring and the stator to move downward. During the movement, the lowest point of the inclined surface on the upper rotating face plate contacts with the rotating shaft, and then under the action of the inclined surface, the rotating shaft, the rotating sleeve and the locking flower axis are pushed to rotate. When the rotating shaft falls along the inclined surface to the rotating concave point of the upper rotating face plate.

[0046] The upper push cylinder starts to work in the reverse direction, while the lower pressure cylinder continues to work, causing the push knife tray to move downward. At this time, since there is no relative movement between the self-locking seat and the locking flower shaft, and the return spring is compressed, the rotating shaft, the rotating sleeve and the locking flower shaft stop rotating. Then the push knife assembly passes through the workpiece to be processed under the action of the lower pressure cylinder, thereby completing the fine trimming of the inner teeth of the synchronizer gear ring.

[0047] After finishing, the lower pressure cylinder works in the reverse direction to move the self-locking seat upward. In the initial stage of upward movement, a gap will appear between the locking flower shaft and the push knife tray, causing the locking flower shaft to move downward under the action of the return spring, that is, the rotating shaft moves downward from the rotating concave point of the upper rotating disc, and will contact the inclined surface on the lower rotating disc during the movement. Then, under the action of the inclined surface, the rotating shaft, the rotating sleeve and the locking flower shaft are pushed to rotate. When the rotating shaft falls along the inclined surface to the rotating concave point on the lower rotating disc, the locking flower shaft cannot move downward. At this time, the spline protrusion is just vertically aligned with the spline groove, but the lower pressure cylinder continues to work in the reverse direction, so it will drive the locking flower shaft to move upward, thereby separating the self-locking assembly from the push knife assembly, and when the self-locking seat leaves the workpiece under the action of the lower pressure cylinder, the processed workpiece can be taken out.

[0048] After the workpiece is taken out, the downward pressure cylinder works to drive the self-locking seat to move downward. When the locating pin is inserted into the locating hole, the cylinder continues to work, causing the self-locking seat to move downward and the locking flower axis to move upward. During the movement, the rotating shaft first contacts the lowest point of the inclined surface on the upper rotating faceplate, and then moves along the inclined surface to the rotating concave point of the upper rotating faceplate. At the same time, under the action of the inclined surface, the rotating shaft, rotating sleeve and locking flower axis can be pushed to rotate. When the rotating shaft falls along the inclined surface to the rotating concave point of the upper rotating disc, the lower pressure cylinder works in the reverse direction to move the self-locking seat upward. In the initial stage of the upward movement, a gap will appear between the locking flower shaft and the push knife tray, causing the locking flower shaft to move downward under the action of the return spring, that is, the rotating shaft moves downward from the rotating concave point of the upper rotating disc, and will contact the inclined surface on the lower rotating disc during the movement. Then, under the action of the inclined surface, the rotating shaft, the rotating sleeve and the locking flower shaft are pushed to rotate. When the rotating shaft falls along the inclined surface to the rotating concave point on the lower rotating disc, the locking flower shaft cannot move downward. At this time, the spline protrusion is just vertically offset from the spline groove, and then the lower pressure cylinder continues to work in the reverse direction. After the lower pressure cylinder has worked for a period of time, the upper push cylinder works until the self-locking seat and the push knife tray return to their initial positions.

Claims

1. An automatic finishing device for the inner teeth of a synchronizer gear ring, characterized in that: The invention comprises a pusher assembly (A) for fine-finishing a workpiece to be processed, a downward pressing assembly (B) that can move up and down, and an upward pushing assembly (C) that can move up and down, wherein the downward pressing assembly (B) is arranged above the upward pushing assembly (C), and the bottom surface of the downward pressing assembly (B) is provided with a self-locking assembly (D) that can realize the connection between the pusher assembly (A) and the downward pressing assembly (B) by clamping and releasing the pusher assembly (A), and the upward pushing assembly (C) is arranged on the ground through a base (1), and the base (1) is provided with a supporting assembly (E) located outside the upward pushing assembly (C) and used to prevent the workpiece to be processed from moving up and down; When not in use, the push knife assembly (A) is locked on the self-locking assembly (D), and there is a certain distance between the push knife assembly (A) and the upper push assembly (C). After the workpiece to be processed is placed on the support assembly (E), the lower pressure assembly (B) drives the push knife assembly (A) to move downward, so that the push knife assembly (A) first contacts with the upper push assembly (C), and then continues to move downward under the action of the lower pressure assembly (B). At the same time, the upper push assembly (C) also moves downward to complete the fine-tuning of the workpiece to be processed. Then the self-locking assembly (D) is unlocked, the lower pressure assembly (B) moves upward, and the workpiece after fine-tuning is taken out. Then the lower pressure assembly (B) moves downward, and the upper push assembly (C) moves upward, so that the push knife assembly (A) is locked on the self-locking assembly (D). Finally, the push knife assembly (A) moves upward away from the upper push assembly (C) driven by the lower pressure assembly (B). The self-locking component (D) comprises a self-locking seat (2) fixed to the bottom surface of the pressing component (B), a locking flower shaft (3) capable of moving up and down and rotating in the self-locking seat (2) is arranged in the self-locking seat (2), a return component for realizing the upward and downward movement and return of the locking flower shaft (3) is arranged above the locking flower shaft (3), a conversion component for converting the upward and downward movement of the locking flower shaft (3) into rotation and located in the self-locking seat (2) is arranged at the upper end of the locking flower shaft (3), a spline protrusion (3a) is arranged at the lower end of the locking flower shaft (3), a flower shaft hole (4) for inserting the locking flower shaft (3) is arranged at the upper end of the push knife component (A), a spline groove (4a) matching the spline protrusion (3a) is arranged at the upper end of the flower shaft hole (4), and the lower end of the flower shaft hole (4) matches the outer diameter of the spline protrusion (3a); The support assembly (E) comprises an upper tray (15) arranged above the base (1) via a column (14); a workpiece tray (16) which is larger at the top and smaller at the bottom is arranged inside the upper tray (15); a workpiece hole (16a) for placing a workpiece is arranged inside the workpiece tray (16); the upper end of the workpiece hole (16a) is arranged as a conical hole which is larger at the top and smaller at the bottom; and the lower end of the workpiece hole (16a) is arranged as a stepped hole which is larger at the top and smaller at the bottom.

2. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The return assembly comprises a spring shaft core (5) arranged on a self-locking seat (2), a spring hole (5a) for accommodating a return spring (6) and having a smaller upper part and a larger lower part is arranged in the spring shaft core (5), the upper end of the return spring (6) abuts against a step of the spring hole (5a), and the other end abuts against the upper end of the locking flower shaft (3).

3. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The conversion assembly comprises an upper rotating faceplate (7) and a lower rotating faceplate (8) both arranged in a self-locking seat (2) and spaced apart from each other. The inner rings of the upper rotating faceplate (7) and the lower rotating faceplate (8) are both provided with a circle of rotating convex blocks (a). The rotating convex blocks (a) are spaced apart from each other with a plurality of rotating convex points (b) and a number of rotating concave points (c) equal to the number of the rotating convex points (b). The rotating convex points (b) and the rotating concave points are arranged crosswise. An inclined surface (d) is arranged between one side of the rotating convex point (b) and an adjacent rotating concave point (c). A straight surface (e) is arranged between the other side and another adjacent rotating concave point (c). The rotating concave point (c) of the upper rotating faceplate (7) is arranged correspondingly to the highest point of the inclined surface (d) on the lower rotating faceplate (8). The outer rings of the upper rotating faceplate (7) and the lower rotating faceplate (8) are provided with a spacer for maintaining the relative distance between the inner ring of the upper rotating faceplate (7) and the inner ring of the lower rotating faceplate (8). The self-locking seat (2) is provided with a first stator slot (2a) vertically therein; second stator slots (f) corresponding to the first stator slots (2a) are vertically connected and arranged on the outer sides of the upper rotating face plate (7), the support ring (9) and the lower rotating face plate (8); the first stator slot (2a) and the second stator slot (f) contain stators (10) for preventing the upper rotating face plate (7), the support ring (9) and the lower rotating face plate (8) from rotating; a rotating sleeve (11) is provided on the upper end of the locking flower axis (3); a rotating shaft (12) capable of being stuck at the position of a rotating concave point (c) is horizontally arranged on the rotating sleeve (11); when the locking flower axis (3) moves upward to the highest point, the rotating shaft (12) is stuck on the rotating concave point (c) of the upper rotating face plate (7); when the locking flower axis (3) moves downward to the lowest point, the rotating shaft (12) is stuck on the rotating concave point (c) of the lower rotating face plate (8).

4. The synchronizer gear ring internal gear automatic finishing device according to claim 3, characterized in that: The vertical distance between the rotation concave point (c) on the upper rotating face disc (7) and the rotation concave point (c) on the lower rotating face disc (8) is the distance for the locking flower axis (3) to move up and down, the inclined surface (d) on the lower rotating face disc (8) and the inclined surface (d) on the upper rotating face disc (7) are arranged alternately, and the number of the rotation concave points (c) is twice the number of the spline protrusions (3a).

5. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The self-locking seat (2) comprises an upper base plate (2b) fixed on a pressing assembly (B), a cover sleeve (2c) capable of covering the outside of a conversion assembly is arranged below the upper base plate (2b), a cover plate (2d) is arranged below the cover sleeve (2c), a positioning hole (2e) is arranged on the cover plate (2d), and a positioning pin (13) capable of being inserted into the positioning hole (2e) is arranged on the push knife assembly (A).

6. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The push-up assembly (C) comprises a push-up cylinder (17) arranged in the base (1), the output end of the push-up cylinder (17) passes upward through the base (1) and is arranged on a push-knife orientation column (18), a plurality of positioning columns (19) which can be inserted into the lower end of the push-knife assembly (A) are arranged on the top surface of the push-knife orientation column (18), a push-knife tray (20) for contacting the bottom surface of the push-knife assembly (A) is arranged on the upper end of the push-knife orientation column (18), a chuck (21) is arranged on the lower end of the push-knife orientation column (18), and a A sliding tray (22) is slidably connected to the column (14); a positioning plate (23) is arranged between the push tool tray (20) and the chuck (21); three positioning blocks (24) are arranged at intervals on the positioning plate (23) for contacting and positioning with the inner side of a workpiece to be processed; the chuck (21) comprises an upper chuck (21a) arranged above the sliding tray (22) and a lower chuck (21b) arranged below the sliding tray (22); when the upper chuck (21a) and the lower chuck (21b) are not fastened, the upper chuck (21a) can rotate relative to each other.

7. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The pressing component (B) comprises a top plate (26) arranged above the pushing component (C) via a supporting column (25), a pressing cylinder (27) being arranged on the top plate (26), a moving plate (28) being arranged after the output end of the pressing cylinder (27) passes downward through the top plate (26), and the moving plate (28) is slidably connected to the supporting column (25), and the self-locking component (D) is arranged on the bottom surface of the moving plate (28).

8. The synchronizer gear ring internal gear automatic finishing device according to claim 1, characterized in that: The invention is also provided with a loading robot (F) for placing a workpiece to be processed and removing the workpiece after processing. The loading robot (F) clamps the workpiece by means of a clamping fixture (G). The clamping fixture (G) comprises a clamping plate (29). The clamping plate (29) is rotatably arranged on the loading robot (F). Two finger cylinders (30) are arranged on the left and right of the clamping plate (29) at intervals.

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