High speed punch for gear machining

Abstract

The present application relates to a kind of high-speed punch press for gear machining, and it relates to punch press processing technical field.The punch press body is installed with gear convex die in the lower end of the upper surface of the punch press body, two extrusion sliding blocks are staggered and installed in the lower end of the upper surface of the punch press body, the bottom plate is installed on the upper end of the lower surface of the punch press body, the top plate is installed on the upper end of the bottom plate, the lower die is installed on the lower surface of the punch press body corresponding to the top plate, the upper die is installed on the upper end of the lower die, and the material conveying groove is integrally arranged between the lower die and the upper die;Section finishing assembly is arranged on the bottom plate and the top plate, for cleaning the lower end of gear fracture zone;The present application relies on the power output of stamping main stroke, and the up-and-down feeding action of punch press is converted into the circumferential rotation of gear ring by the linear motion of extrusion sliding block and helical groove transmission, and then drives scraper to complete the composite action of circumferential rotation and radial opening and closing;Scraper is folded to receive workpiece in blanking and blanking stage.

Description

Technical Field

[0001] This invention relates to the field of punching technology, specifically a high-speed punching machine for gear processing. Background Technology

[0002] In the field of gear blank processing, high-speed stamping is the mainstream processing method for gear forming. The matching high-speed punch is the core equipment to realize this process. Existing high-speed punches usually complete the punching and forming of sheet metal through the cooperation of tooth-shaped punches and lower dies. They can realize the large-scale continuous processing of gear blanks and are widely used in the pre-production stage of various transmission gears.

[0003] In the actual blanking process, the sheet metal undergoes plastic deformation and fracture separation sequentially under the shearing action of the punch. The resulting blanked cross-section naturally exhibits three characteristic areas from top to bottom: a collapsed corner band, a bright band, and a fracture band. The fracture band is formed by material tearing and is often accompanied by irregular cross-sections and edge burrs. Due to factors such as the uniformity of the sheet metal material and fluctuations in the blanking clearance, the size of the burrs generated by the fracture band varies to some extent. Burrs directly reduce the cross-sectional forming quality of the gear blank. When a gear blank with burrs directly enters the subsequent tooth surface processing process, it will affect the processing accuracy and the assembly fit of the final product. Therefore, an additional deburring process is usually required, which to some extent affects the compactness of the processing flow and the overall production efficiency.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a high-speed punch press for gear processing to solve the problems mentioned in the background. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a high-speed punch for gear processing, comprising a punch body, a toothed punch mounted on the lower end of the upper table of the punch body, two extrusion slides alternately mounted on the lower end of the upper table of the punch body, a base plate mounted on the upper end of the lower table of the punch body, a top plate mounted on the upper end of the base plate, a lower die mounted on the lower table of the punch body corresponding to the top plate, an upper die mounted on the upper end of the lower die, and a material feeding groove integrally provided between the lower die and the upper die; The bottom plate and top plate are equipped with cross-section trimming components for cleaning the lower end of the gear fracture zone; The bottom plate and the top plate are rotatably connected to the corresponding extrusion sliders by two drive shafts. The outer walls of the two drive shafts are provided with spiral grooves. The extrusion sliders are helically driven by the drive shafts. The two drive shafts are connected to drive gears at positions corresponding to the bottom plate and the top plate. The outer wall of the drive shaft and the upper end of the top plate are respectively provided with anti-jamming mold components, which are used to prevent the mold from jamming after the gear is stamped.

[0007] Preferably, the cross-section trimming component includes two arc-shaped grooves, which are staggered on the bottom plate and the top plate. A toothed ring is rotatably connected between the bottom plate and the top plate, and the toothed ring meshes with the drive gear disc.

[0008] Preferably, the rotation center of the toothed ring coincides with the midpoint of the ends of the two arc-shaped grooves, the upper end of the toothed ring penetrates the top plate, and two guide rods are installed on the upper end of the toothed ring, with two scrapers symmetrically arranged on the two guide rods.

[0009] Preferably, the two scrapers are slidably mounted on the outer walls of the two guide rods, and a drive plate is connected to the side of the two scrapers that is far away from each other. A drive shaft is connected to the end of the drive plate that is far away from the scraper, and the drive shaft is movably inserted into the arc-shaped groove opened in the top plate and the bottom plate.

[0010] Preferably, the anti-jamming assembly includes an extrusion rod and a bearing sleeve, the extrusion rod being connected to the lower end of the drive shaft, and the bearing sleeve being connected to the upper end of the top plate corresponding to the drive shaft.

[0011] Preferably, the upper end of the bearing sleeve is provided with a guide groove, a cylinder is slidably connected in the guide groove, and an arc spring is connected to one side of the cylinder.

[0012] Preferably, the upper end of the bearing sleeve is integrally provided with a protrusion corresponding to the upper end of the arc spring, the other end of the arc spring is connected to the protrusion, and a force-bearing shaft is vertically slidably connected inside the cylinder.

[0013] Preferably, the upper end of the force-bearing shaft has a beveled surface, and an impact shaft is connected to one side of the upper end of the force-bearing shaft. The impact shaft abuts against the side wall of the lower mold. A guide shaft is connected to the lower end of the force-bearing shaft. The bearing sleeve has a lifting groove corresponding to the guide shaft, and the guide shaft is slidably connected to the lifting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention relies on the power output of the main stroke of the stamping process. Through the linear motion of the extrusion slide combined with the spiral groove transmission, the up and down feed motion of the punch press is transformed into the circumferential rotation of the gear ring, which in turn drives the scraper to complete the compound action of circumferential rotation and radial opening and closing. During the blanking stage, the scraper closes to receive the workpiece. During the return stroke, the scraper directly cleans the edge burrs of the fracture zone at the lower end of the gear by combining rotary rubbing and radial scraping. The burr treatment of the cross-section can be completed within the return stroke gap of a single stamping, which effectively improves the cross-sectional forming quality of the gear blank, reduces the processing burden of subsequent processes, and improves the compactness and production efficiency of the overall processing flow.

[0015] 2. The anti-jamming structure of this invention is linked to the rotation of the transmission shaft. It completes energy storage and release synchronously with the downward and return strokes of the stamping. Through the elastic energy storage and release of the arc spring, the impact shaft generates a slight impact on the side wall of the lower die. The vibration shakes off the burrs and debris attached to the inner wall of the cavity, which can avoid the blockage of the inner wall of the cavity during the section trimming process and ensure the smooth output of the workpiece. While improving the quality of gear punching, it also ensures the stability and reliability of the continuous operation of the high-speed punch press. Attached Figure Description

[0016] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure of region A; Figure 4 This is a schematic diagram showing the positional relationship between the mold and the top plate in this invention; Figure 5 This is an anatomical diagram of the top plate and lower mold of the present invention; Figure 6 This is a structural disassembly diagram of the bottom plate and top plate of the present invention; Figure 7 This is a schematic diagram of the guide rod and scraper structure of the present invention; Figure 8 This is a schematic diagram showing the separation and cleaning state of the two scrapers of the present invention; Figure 9 This is a schematic diagram showing the aggregated support state of the two scrapers of the present invention. Figure 10 For the present invention Figure 9 Enlarged view of the structure of region B; Figure 11 This is a schematic diagram of the structure of the bearing sleeve of the present invention.

[0017] In the diagram: 1. Punch press body; 2. Toothed punch; 3. Extrusion slide block; 4. Base plate; 5. Top plate; 6. Lower die; 7. Upper die; 8. Drive shaft; 9. Spiral groove; 10. Drive gear plate; 111. Arc groove; 112. Gear ring; 113. Guide rod; 114. Scraper; 115. Drive plate; 116. Drive shaft; 121. Extrusion rod; 122. Bearing sleeve; 123. Guide groove; 124. Cylinder; 125. Arc spring; 126. Force-bearing shaft; 127. Impact shaft; 128. Guide shaft; 129. Lifting groove. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] Please see Figures 1-11 This invention provides a technical solution: a high-speed punch press for gear processing, comprising a punch press body 1, a toothed punch 2 mounted on the lower end of the upper table of the punch press body 1, two extrusion slides 3 alternately mounted on the lower end of the upper table of the punch press body 1, a base plate 4 mounted on the upper end of the lower table of the punch press body 1, a top plate 5 mounted on the upper end of the base plate 4, a lower die 6 mounted on the lower table of the punch press body 1 corresponding to the top plate 5, an upper die 7 mounted on the upper end of the lower die 6, and an integral feed mechanism between the lower die 6 and the upper die 7. Material trough; the bottom plate 4 and top plate 5 are equipped with cross-section trimming components for cleaning the lower end of the gear fracture zone; the bottom plate 4 and top plate 5 are rotatably connected to the extrusion slider 3 by two drive shafts 8, and the outer walls of the two drive shafts 8 are provided with spiral grooves 9. The extrusion slider 3 and the drive shafts 8 are screwed together. The two drive shafts 8 are connected to drive gear discs 10 at the positions between the bottom plate 4 and the top plate 5; the outer walls of the drive shafts 8 and the upper ends of the top plate 5 are respectively provided with anti-jamming components for preventing jamming after gear stamping; Start the punch press body 1. The upper table of the punch press body 1 feeds downward. The upper table synchronously drives the toothed punch 2 and the two extrusion slides 3 to move downward. The downward-moving extrusion slides 3 move in a straight line and extrude the spiral groove 9. The two drive shafts 8 that are extruded rotate around their own axes. The rotating drive shafts 8 drive the drive gear disk 10 fixed on its outer wall to rotate. During the rotation, the cross-section trimming component and the anti-jamming component can be driven. At the same time, when the toothed punch 2 moves down to the plate position between the lower die 6 and the upper die 7, it can perform a punching operation on the plate to cut the plate into gear workpieces.

[0020] In one embodiment of the present invention, the section trimming assembly includes two arc-shaped grooves 111, which are staggered on the bottom plate 4 and the top plate 5. A toothed ring 112 is rotatably connected between the bottom plate 4 and the top plate 5. The toothed ring 112 meshes with the drive gear disk 10. The rotation center of the toothed ring 112 coincides with the midpoint of the ends of the two arc-shaped grooves 111. The upper end of the toothed ring 112 penetrates the top plate 5, and two guide rods 113 are installed on the upper end of the toothed ring 112. Two scrapers 114 are symmetrically arranged on the two guide rods 113. Two scrapers 114 are slidably inserted through the outer wall of two guide rods 113. A drive plate 115 is connected to the side of the two scrapers 114 that is far away from each other. A drive shaft 116 is connected to the end of the drive plate 115 that is far away from the scraper 114. The drive shaft 116 is movably inserted into the arc-shaped groove 111 opened in the top plate 5 and the bottom plate 4. When the drive gear 10 rotates, it meshes and drives the gear ring 112 to rotate circumferentially, which in turn drives the guide rod 113, scraper 114, drive plate 115 and drive shaft 116 to rotate together. The circumferentially rotating drive shaft 116 is limited by the trajectory of the arc groove 111 and moves along the groove path. The arc trajectory generates a radial inward component force on the drive shaft 116, which drives the two scrapers 114 to move towards each other along the axial direction of the guide rod 113 through the drive plate 115, so that the scrapers 114 gradually approach each other while rotating circumferentially. When the toothed punch 2 completely cuts through the sheet metal, the drive shaft 116 moves to the inner end of the arc groove 111, and the two scrapers 114 move towards the end simultaneously, with their upper surfaces forming a support plane. The punched gear workpiece falls along the cavity of the lower die 6 and is finally supported by the top of the scraper 114. It is also circumferentially limited by the inner wall of the cavity of the lower die 6, maintaining a stable position. After the blanking is completed, the upper table of the punch press body 1 returns to its original position. The extrusion slide 3 moves upward, driving the transmission shaft 8 to rotate in the opposite direction, which in turn drives the gear ring 112 to rotate in the opposite direction and return to its original position. The reverse-rotating drive shaft 116 is limited by the arc groove 111 and drives the two scrapers 114 to move in opposite directions along the guide rod 113 through the drive plate 115. The scrapers 114 gradually move away from each other while rotating in the circumferential direction. During this process, the gear workpiece is limited by the lower die 6 and cannot follow the rotation. The cutting edges of the two scrapers 114 clean the burrs on the lower end of the gear workpiece through a combination of circumferential rotation rubbing and radial outward scraping. When the drive shaft 116 moves to the outermost extreme point of the arc groove 111, the two scrapers 114 move away from each other to the maximum distance, and the upper support surfaces are completely misaligned, losing their supporting function for the gear workpiece; the cleaned gear workpiece falls from the gap between the two scrapers 114 under the action of gravity, and is naturally discharged through the hollow position of the lower table of the punch press body 1, completing the punching and trimming of a single gear; wherein, the cutting edges of the two scrapers 114 can fit into the fracture zone area of ​​the gear, ensuring that the cross-section of the gear fracture zone is uniformly flat after trimming, without any residual burrs or dead corners.

[0021] In one embodiment of the present invention, the anti-jamming assembly includes an extrusion rod 121 and a bearing sleeve 122. The extrusion rod 121 is connected to the lower end of the drive shaft 8, and the bearing sleeve 122 is connected to the upper end of the top plate 5 corresponding to the drive shaft 8. A guide groove 123 is provided at the upper end of the bearing sleeve 122, and a cylinder 124 is slidably connected in the guide groove 123. An arc spring 125 is connected to one side of the cylinder 124. The upper end of the bearing sleeve 122 is integrally provided with a protrusion corresponding to the upper end of the arc spring 125. The other end of the arc spring 125 is connected to the protrusion. A force-bearing shaft 126 is vertically slidably connected inside the cylinder 124. The upper end of the force-bearing shaft 126 forms a beveled surface. An impact shaft 127 is connected to one side of the upper end of the force-bearing shaft 126. The impact shaft 127 abuts against the side wall of the lower mold 6. The lower end of the force-bearing shaft 126 is connected to a guide shaft 128. The bearing sleeve 122 is provided with a lifting groove 129 corresponding to the guide shaft 128. The guide shaft 128 is slidably connected to the lifting groove 129. As the stamping process continues, the drive shaft 8 rotates downwards, and the extrusion rod 121 at the lower end rotates accordingly. The rotating extrusion rod 121 extrudes the inclined surface at the upper end of the force-bearing shaft 126, causing the force-bearing shaft 126 to slide vertically downwards along the inner wall of the cylinder 124. As the stamping process continues, the drive shaft 8 rotates in the opposite direction during the return stroke, and the extrusion rod 121 rotates synchronously in the opposite direction and extrudes the back side of the inclined surface of the force-bearing shaft 126. The force-bearing shaft 126, subjected to lateral extrusion force, drives the cylinder 124 to slide circumferentially along the guide groove 123 at the upper end of the bearing sleeve 122. During the sliding process of the cylinder 124, the arc spring 125 is continuously compressed and stored, while the guide shaft 128 at the lower end of the force shaft 126 is limited by the lifting groove 129 and slides synchronously with the force shaft 126. When the force shaft 126 slides with the cylinder 124 to the preset position, the inclined surface is released from the compression state of the extrusion rod 121, the arc spring 125 releases elastic potential energy, and pushes the cylinder 124 and the force shaft 126 to quickly reset. The quickly reset force shaft 126 drives the impact shaft 127 at the side end to move synchronously, generating a momentary micro-impact on the side wall of the lower mold 6. The vibration generated by the impact is transmitted to the cavity of the lower die 6, shaking off the burrs and debris adhering to the inner wall of the cavity of the lower die 6, avoiding burrs from clogging the cavity and causing workpiece jamming and die blockage, and ensuring the stability of continuous stamping operation; among them, the impact force of the impact shaft 127 is controlled by the compression amount and elastic coefficient of the arc spring 125, which only produces a small amplitude vibration and will not cause the lower die 6 and the upper die 7 to be misaligned, ensuring that the accuracy of stamping is not affected.

[0022] Working principle: The punch press body 1 is started, and the upper table of the punch press body 1 feeds downward. The upper table surface synchronously drives the toothed punch 2 and the two extrusion slides 3 to move downward. The downward-moving extrusion slides 3 move linearly downward and extrude the spiral groove 9. The two drive shafts 8 subjected to extrusion rotate around their own axes. The rotating drive shafts 8 drive the drive gear disk 10 fixed on its outer wall to rotate. The drive gear disk 10 meshes with the teeth on the outer wall of the gear ring 112, thereby driving the gear ring 112 to rotate around its own rotation center between the bottom plate 4 and the top plate 5. The rotating gear ring 112 drives the two guide rods 113 at the upper end to perform circumferential rotation. The two guide rods 113 synchronously drive the two scrapers slidably mounted on them. The blade 114 and the drive plate 115 connected to the outside of the scraper 114 rotate together circumferentially; the drive shaft 116 connected to the end of the drive plate 115 is inserted into the arc groove 111 opened in the bottom plate 4 and the top plate 5. The circumferentially rotating drive shaft 116 is limited by the trajectory of the arc groove 111 and moves along the path of the arc groove 111; since the midpoint of the end of the two arc grooves 111 is consistent with the rotation center of the toothed ring 112, the arc trajectory will generate a radial inward component force on the drive shaft 116. The drive shaft 116 drives the two scrapers 114 to move towards each other along the axial direction of the guide rod 113 through the drive plate 115, so that the two scrapers 114 gradually approach each other while rotating circumferentially. When the toothed punch 2 descends to the sheet metal position between the lower die 6 and the upper die 7, it performs a punching operation on the sheet metal, punching the sheet metal into gear workpieces; when the toothed punch 2 completely punches through the sheet metal, the drive shaft 116 moves along the arc groove 111 to the inner end of the stroke extreme point, and the two scrapers 114 synchronously approach each other to the extreme point position, and the upper end surfaces of the two scrapers 114 together form a support plane; the punched gear workpiece falls downward along the cavity of the lower die 6, and finally falls onto the top support surface of the two scrapers 114, and the circumferential direction of the gear workpiece is limited by the inner wall of the cavity of the lower die 6, maintaining a stable position and avoiding skewing during punching and falling.

[0023] After blanking, the upper table of the punch body 1 drives the toothed punch 2 and the extrusion slide 3 to return to their upward position; the upward-moving extrusion slide 3 extrudes the spiral groove 9 in the opposite direction, and the transmission shaft 8, subjected to extrusion, rotates in the opposite direction around its own axis. The reverse-rotating transmission shaft 8 drives the drive gear plate 10 to rotate in the opposite direction, which in turn drives the gear ring 112 to rotate in the opposite direction and return to its original position; the reverse-rotating gear ring 112 drives the guide rod 113, scraper 114, drive plate 115, and drive shaft 116 to rotate in the opposite direction synchronously; the reverse-rotating drive shaft 116 is again limited by the trajectory of the arc groove 111, and the drive shaft 116... Then, the drive plate 115 drives the two scrapers 114 to move in opposite directions along the guide rod 113, so that the two scrapers 114 gradually move away from each other while rotating in the circumferential direction. During this process, the gear workpiece is limited by the lower mold 6 in the circumferential direction and cannot follow the rotation. The cutting edges of the two scrapers 114 rotate and rub in the circumferential direction on one side and move outward radially to scrape on the other side, so as to perform double scraping and cleaning of the burrs in the punching fracture zone at the lower end of the gear workpiece. The rotation action can cover the entire fracture zone area of ​​the lower end face of the gear, and the opening and closing action can scrape from the root of the burrs, improving the cleanliness of the fracture zone and the flatness of the end face. When the drive shaft 116 moves along the arc groove 111 to the outermost extreme point, the two scrapers 114 move away from each other to the maximum distance, and the upper support surfaces of the two scrapers 114 are completely misaligned. At this time, the scrapers 114 lose their supporting function for the gear workpiece. The cleaned gear workpiece falls from the gap between the two scrapers 114 under the action of gravity and is naturally discharged through the hollow position of the lower table of the punch press body 1, thus completing the punching and trimming of a single gear. During the downward rotation of the drive shaft 8 as it is being stamped, the pressing rod 121 connected to the lower end of the drive shaft 8 rotates synchronously. The rotating pressing rod 121 contacts and presses the inclined surface of the upper end of the force-bearing shaft 126. The force-bearing shaft 126, pressed by the inclined surface, slides vertically downward along the inner wall of the cylinder 124. During the reverse rotation of the drive shaft 8, the pressing rod 121 rotates synchronously in the opposite direction. The reverse-rotating pressing rod 121 presses the back side of the inclined surface of the force-bearing shaft 126. The force-bearing shaft 126, subjected to lateral pressing force, drives the cylinder 124 to slide circumferentially along the guide groove 123 at the upper end of the bearing sleeve 122. During the sliding process, the cylinder 124 continuously presses the arc spring 125, causing the arc spring 125 to be compressed and stored. At the same time, the guide shaft 128 at the lower end of the force-bearing shaft 126 is limited by the lifting groove 129 on the bearing sleeve 122. The force shaft 126 slides synchronously along the lifting groove 129. During the sliding process, the force shaft 126 descends vertically along the cylinder 124. When the force shaft 126 slides to the preset position with the cylinder 124, the inclined surface of the force shaft 126 is released from the extrusion state of the extrusion rod 121. The arc spring 125 releases elastic potential energy instantaneously, pushing the cylinder 124 and the force shaft 126 to quickly reset. The quickly reset force shaft 126 drives the impact shaft 127 connected to its side end to move synchronously, so that the impact shaft 127 generates an instantaneous micro-impact on the side wall of the lower mold 6. The vibration generated by the impact is transmitted to the cavity of the lower mold 6, which can shake off the burrs and debris adhering to the inner wall of the cavity, avoid the burrs generated after the gear workpiece is cleaned from clogging the cavity of the lower mold 6, prevent the workpiece from getting stuck and blocking the mold, and ensure the stability of continuous stamping operation.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A high-speed punch press for gear processing, comprising a punch press body (1), wherein a toothed punch (2) is mounted on the lower end of the upper table of the punch press body (1), characterized in that: Two extrusion slides (3) are staggered at the lower end of the upper table of the punch press body (1). A base plate (4) is installed at the upper end of the lower table of the punch press body (1). A top plate (5) is installed at the upper end of the base plate (4). A lower die (6) is installed on the lower table of the punch press body (1) corresponding to the top plate (5). An upper die (7) is installed at the upper end of the lower die (6). A material conveying groove is integrally provided between the lower die (6) and the upper die (7). The bottom plate (4) and top plate (5) are provided with cross-section trimming components for cleaning the lower end of the gear fracture zone; The bottom plate (4) and the top plate (5) are rotatably connected to the extrusion slider (3) by two drive shafts (8). The outer walls of the two drive shafts (8) are provided with spiral grooves (9). The extrusion slider (3) and the drive shafts (8) are screwed together. The two drive shafts (8) are connected to drive gears (10) at the positions between the bottom plate (4) and the top plate (5). The outer wall of the drive shaft (8) and the upper end of the top plate (5) are respectively provided with anti-jamming mold components, which are used to prevent mold jamming after gear stamping; The cross-section trimming assembly includes two arc-shaped grooves (111), which are staggered on the bottom plate (4) and the top plate (5). A toothed ring (112) is rotatably connected between the bottom plate (4) and the top plate (5), and the toothed ring (112) meshes with the drive gear disc (10). The rotation center of the toothed ring (112) coincides with the midpoint of the ends of the two arc-shaped grooves (111). The upper end of the toothed ring (112) penetrates the top plate (5), and two guide rods (113) are installed on the upper end of the toothed ring (112). Two scrapers (114) are symmetrically arranged on the two guide rods (113). Two scrapers (114) slide through the outer walls of two guide rods (113). A drive plate (115) is connected to the side of each scraper (114) that is far away from each other. A drive shaft (116) is connected to the end of the drive plate (115) that is far away from the scraper (114). The drive shaft (116) is movably inserted into the arc groove (111) opened in the top plate (5) and the bottom plate (4). The arc trajectory of the arc groove (111) generates a radially inward component force on the drive shaft (116).

2. The high-speed punch press for gear processing according to claim 1, characterized in that: The anti-jamming assembly includes an extrusion rod (121) and a bearing sleeve (122). The extrusion rod (121) is connected to the lower end of the drive shaft (8), and the bearing sleeve (122) is connected to the upper end of the top plate (5) corresponding to the drive shaft (8).

3. A high-speed punch press for gear processing according to claim 2, characterized in that: The upper end of the bearing sleeve (122) is provided with a guide groove (123), and a cylinder (124) is slidably connected in the guide groove (123). An arc spring (125) is connected to one side of the cylinder (124).

4. A high-speed punch press for gear processing according to claim 3, characterized in that: The upper end of the bearing sleeve (122) is integrally provided with a protrusion corresponding to the upper end of the arc spring (125), and the other end of the arc spring (125) is connected to the protrusion. The cylinder (124) is vertically slidably connected with a force shaft (126).

5. A high-speed punch press for gear processing according to claim 4, characterized in that: The upper end of the force-bearing shaft (126) forms a beveled surface. An impact shaft (127) is connected to one side of the upper end of the force-bearing shaft (126). The impact shaft (127) abuts against the side wall of the lower mold (6). A guide shaft (128) is connected to the lower end of the force-bearing shaft (126). The bearing sleeve (122) is provided with a lifting groove (129) corresponding to the guide shaft (128). The guide shaft (128) and the lifting groove (129) are slidably connected.

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