A mechanical claw for an axle stamping production line

Abstract

The present invention relates to the field of mechanical claws, and discloses a mechanical claw for an axle stamping production line, which includes a frame body and a clamping rotating shaft. Grabbing claws are respectively fixedly connected to the side walls of the two clamping rotating shafts. A borax groove is fixedly connected to the frame body. A plurality of sand outlets are arranged at the bottom of the borax groove. A sand discharging plate is slidably connected to the bottom of the borax groove, and a plurality of sand discharging openings are arranged on the sand discharging plate. The present invention has the following advantages and effects: The grabbing claws and the borax groove are arranged on the frame body. The grabbing claws grab the steel plate. By sliding the sand discharging plate, the sand spreading is realized to be carried out and stopped, replacing the manual operation of transporting and spreading sand on the heat-treated steel plate; Through the linkage of the vibration rotating shaft and the clamping rotating shaft, the sand spreading operation is completed while the steel plate is being clamped; By setting the transmission gear as a wheel body and a ratchet wheel, sand is spread when the steel plate is grabbed, and sand spreading stops when the steel plate is released, avoiding unnecessary borax from falling onto the stamping die and reducing the wear on the surface of the die.

Description

Technical Field

[0001] The present invention relates to the field of mechanical claws, and particularly to a mechanical claw for an axle stamping production line. Background Art

[0002] An automotive axle (also known as an axletree) is connected to a vehicle frame (or a unitized body) through a suspension, and wheels are installed at both ends thereof. The function of the axle is to bear the load of the vehicle and maintain the normal running of the vehicle on the road. In an axle stamping production line, the housing part of the axle is formed by stamping a steel plate. Before stamping the steel plate, it is necessary to heat the steel plate first, and then transfer it to a punching press for stamping. In the prior art, an operator uses a clamp to push the red-hot steel plate into the punching press die. When performing stamping forging, borax is manually sprinkled on the surface of the steel plate. The environment where the operator is located is harsh and it is easy to get scalded. Summary of the Invention

[0003] The purpose of the present invention is to provide a mechanical claw for an axle stamping production line to replace manual operation for transporting and sanding the heat-treated steel plate.

[0004] The above technical purpose of the present invention is achieved through the following technical solutions: A mechanical claw for an axle stamping production line includes a frame body, a clamping rotating shaft hinged on the frame body. Claw holders are respectively fixedly connected to the side walls of the two clamping rotating shafts. Grabbing grooves are respectively arranged on the opposite sides of the two claw holders. A borax tank is fixedly connected to the frame body. A plurality of sand outlets are arranged at the bottom of the borax tank. A sand discharging plate is slidably connected to the bottom of the borax tank. A plurality of sand discharging openings are arranged on the sand discharging plate. The sand discharging openings are arranged in a staggered manner with the sand outlets. The sand discharging plate slides to be in full contact with the bottom of the borax tank to completely block the sand outlets.

[0005] By adopting the above technical solutions, when clamping the steel plate, the mechanical claw is moved above the steel plate and the steel plate is arranged between the two claw holders. At the same time, the two clamping rotating shafts are rotated to drive the two claw holders to rotate synchronously in opposite directions, so that the claw holders clamp the steel plate between the two grabbing grooves. Borax is arranged in the borax tank. The sand discharging plate is slid so that the sand discharging plate slides away from the bottom of the borax tank. Borax flows out from the sand outlets, falls onto the sand discharging plate, and then falls from the sand discharging openings of the sand discharging plate and onto the surface of the steel plate, thereby realizing the sanding operation on the surface of the steel plate. After the sanding operation is completed, the sand discharging plate is slid again so that the sand discharging plate slides to be in full contact with the bottom surface of the borax tank, and the sand discharging plate blocks the sand outlets, thereby stopping the sanding operation. The mechanical claw transports the steel plate to the stamping die.

[0006] The further setting of the present invention is that guide rods are fixedly connected to both sides of the sand discharging plate, and guide sleeves for the guide rods to pass through are fixedly connected to the outer wall of the borax tank.

[0007] By adopting the above technical solution, the guide rod extends into the guide sleeve and slides within the guide sleeve, improving the sliding stability of the sand discharge plate.

[0008] A further setting of the present invention is that a connecting plate is fixedly connected to the outer wall of the borax groove, a vibrating spring is arranged between the connecting plate and the sand discharge plate, both ends of the vibrating spring are respectively fixedly connected to the connecting plate and the sand discharge plate, and the vibrating spring pulls the sand discharge plate to fit with the bottom of the borax groove.

[0009] By adopting the above technical solution, when it is necessary for the sand discharge plate to slide away from the bottom of the borax groove, a thrust is applied to the sand discharge plate to make the sand discharge plate slide away from the borax groove, and the vibrating spring is stretched. When the thrust on the sand discharge plate is removed, the vibrating spring pulls the sand discharge plate to automatically reset and fit with the bottom of the borax groove.

[0010] A further setting of the present invention is that a vibrating rotating shaft is rotatably connected to the frame body, a vibrating cam is fixedly connected to one end of the vibrating rotating shaft, and the outer wall of the vibrating cam is in contact with the sand discharge plate.

[0011] By adopting the above technical solution, the rotating vibrating rotating shaft drives the vibrating cam to rotate. The vibrating spring pulls the sand discharge plate to keep in contact with the side wall of the vibrating cam. Through the contact between the vibrating cam and the end face of the sand discharge plate, the rotating cam drives the sand spreading disc to vibrate periodically, thereby improving the uniformity of sand spreading.

[0012] A further setting of the present invention is that a driving gear is fixedly connected to the end of the clamping rotating shaft, a transmission gear is connected to the end of the vibrating rotating shaft away from the vibrating cam, a transmission rack is slidably connected to the frame body, and the driving gear and the transmission gear are respectively meshed with the transmission rack.

[0013] By adopting the above technical solution, while the clamping rotating shaft rotates, the driving gear rotates along with the clamping rotating shaft. The driving gear drives the transmission rack to slide. Through the sliding of the transmission rack, the transmission gear is driven to rotate, thereby driving the vibrating cam to rotate, realizing the sand spreading operation on the steel plate while clamping the steel plate.

[0014] A further setting of the present invention is that the transmission gear includes a ratchet fixedly connected to the end of the vibrating rotating shaft and a wheel body rotatably connected to the end of the vibrating rotating shaft. A wheel cavity for the ratchet to be embedded is arranged on the end face of the wheel body. A ratchet tooth is rotatably connected in the wheel cavity. A locking spring for pushing the ratchet tooth to rotate and engage with the ratchet is arranged in the ratchet tooth. When the two grasping claws rotate towards each other, the locking spring pushes the ratchet tooth to lock with the ratchet, and the wheel body rotates synchronously with the ratchet; when the two grasping claws rotate away from each other, the wheel body rotates relative to the ratchet.

[0015] By adopting the above technical solution, since the gripping jaw needs to complete the actions of gripping and releasing the steel plate, when the steel plate is released on the stamping die, the rotation of the clamping rotating shaft will drive the driving gear and the transmission gear to rotate. The transmission gear is set as a wheel body and a ratchet wheel. When the gripping jaw grips the steel plate, the locking spring pushes the ratchet tooth to rotate and keep meshing and locking with the ratchet wheel, and the vibrating rotating shaft rotates synchronously with the wheel body, thereby driving the sand scattering plate to vibrate for sand scattering operation; when the gripping jaw relaxes the steel plate, the wheel body part of the transmission gear rotates, so that the ratchet tooth disengages from the meshing limit of the ratchet wheel, causing the wheel body to rotate relative to the vibrating rotating shaft, and the vibrating cam stops rotating. The sand discharging plate still remains in contact with the bottom of the borax groove, restricting the outflow of borax, preventing excess borax from falling onto the stamping die, and reducing the wear of the die surface.

[0016] The further setting of the present invention is that: two clamping cylinders are arranged on the frame body, and the two clamping cylinders respectively drive the two clamping rotating shafts to rotate. The two ends of each clamping cylinder are respectively hinged to the clamping rotating shaft and the frame body.

[0017] By adopting the above technical solution, the two clamping cylinders respectively drive the two clamping rotating shafts to rotate, providing power for the rotation of the clamping rotating shafts.

[0018] The further setting of the present invention is that: a guiding convex part is arranged between two adjacent sand discharging ports, guiding inclined surfaces are arranged on both sides of the guiding convex part, and the guiding inclined surfaces extend downward to the sand discharging ports.

[0019] By adopting the above technical solution, when the sand scattering plate is in contact with the bottom of the borax groove, the guiding convex part extends into the sand outlet. When sand is scattered, the guiding convex part disengages from the sand outlet, and the borax falling from the sand outlet lands on the guiding convex part. The guiding inclined surfaces on the guiding convex part guide the borax, causing the borax to slide down to the sand discharging port, reducing the residue of borax between the sand scattering plate and the borax groove, and improving the tightness of the contact between the sand scattering plate and the borax groove.

[0020] The beneficial effects of the present invention are:

[0021] 1. A gripping jaw and a borax groove are arranged on the frame body. The gripping jaw grips the steel plate, and by sliding the sand scattering plate, the sand scattering operation is realized and stopped, replacing manual transfer and sand scattering operations on the heat-treated steel plate.

[0022] 2. By arranging a vibrating cam at the end of the vibrating rotating shaft, through the linkage between the vibrating rotating shaft and the clamping rotating shaft, the sand scattering operation is completed while the steel plate is being clamped.

[0023] 3. By setting the transmission gear as a wheel body and a ratchet wheel, the one-way rotation of the vibrating rotating shaft is realized. Sand is scattered when the steel plate is gripped, and sand scattering stops when the steel plate is released, preventing excess borax from falling onto the stamping die and reducing the wear of the die surface. Brief Description of the Drawings

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic structural diagram of this embodiment.

[0026] Figure 2 It is a schematic diagram of the driving relationship of the clamping rotating shaft in this embodiment.

[0027] Figure 3 It is a schematic structural diagram of the transmission gear in this embodiment.

[0028] Figure 4 It is a schematic diagram of the transmission relationship between the driving gear and the transmission gear in this embodiment.

[0029] Figure 5 It is a schematic diagram of the structural relationship between the borax tank and the sand discharge plate in this embodiment.

[0030] In the figure, 1 is the frame body; 2 is the clamping rotating shaft; 21 is the grasping claw; 22 is the grasping groove; 23 is the driving gear; 3 is the clamping cylinder; 4 is the borax tank; 41 is the sand outlet; 42 is the guiding sleeve; 43 is the connecting plate; 44 is the vibrating spring; 5 is the sand discharge plate; 51 is the sand discharge port; 52 is the guiding convex part; 53 is the guiding inclined surface; 54 is the guiding rod; 6 is the vibrating rotating shaft; 61 is the vibrating cam; 62 is the transmission gear; 621 is the wheel body; 622 is the ratchet; 623 is the wheel cavity; 63 is the transmission rack; 7 is the ratchet tooth; 71 is the locking spring; 8 is the steel plate. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions of the present invention in combination with specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] Embodiment, a mechanical claw for an axle stamping production line, as Figure 1 , Figure 2As shown in the figure, it includes a frame body 1, a clamping rotating shaft 2 hinged to the frame body 1. Grabbing claws 21 are respectively fixedly connected to the side walls of the two clamping rotating shafts 2. Grabbing grooves 22 are respectively arranged on the opposite sides of the two grabbing claws 21. Two clamping cylinders 3 are arranged on the frame body 1. The two ends of the clamping cylinder 3 are respectively hinged to the clamping rotating shaft 2 and the frame body 1. By simultaneously driving the two clamping rotating shafts 2 to rotate through the two clamping cylinders 3, the rotation of the two clamping rotating shafts 2 drives the two grabbing claws 21 to rotate synchronously towards each other, so that the grabbing claws 21 clamp the steel plate 8 between the two grabbing grooves 22, completing the clamping of the steel plate 8.

[0033] As Figure 4 , Figure 5 A borax groove 4 is fixedly connected to the frame body 1. A plurality of sand outlets 41 are arranged at the bottom of the borax groove 4. A sand discharging plate 5 is slidably connected to the bottom of the borax groove 4. A plurality of sand discharging openings 51 are arranged on the sand discharging plate 5. The sand discharging openings 51 are arranged in a staggered manner with the sand outlets 41. A guiding convex part 52 is arranged between two adjacent sand discharging openings 51. Guiding inclined surfaces 53 are arranged on both sides of the guiding convex part 52. The guiding inclined surfaces 53 extend downward to the sand discharging openings 51. When the sand discharging plate 5 is in contact with the bottom of the borax groove 4, the guiding convex part 52 extends into the sand outlet 41 to completely block the sand outlet 41.

[0034] As Figure 4 As shown in the figure, guiding rods 54 are fixedly connected to both sides of the sand discharging plate 5. Guiding sleeves 42 through which the guiding rods 54 pass are fixedly connected to the outer wall of the borax groove 4. A connecting plate 43 is fixedly connected to the outer wall of the borax groove 4. A vibration spring 44 is arranged between the connecting plate 43 and the sand discharging plate 5. The two ends of the vibration spring 44 are respectively fixedly connected to the connecting plate 43 and the sand discharging plate 5. The vibration spring 44 pulls the sand discharging plate 5 to be in contact with the bottom of the borax groove 4. A vibration rotating shaft 6 is rotatably connected to the frame body 1. A vibration cam 61 is fixedly connected to one end of the vibration rotating shaft 6. The outer wall of the vibration cam 61 is in contact with the sand discharging plate 5. A driving gear 23 is fixedly connected to the end of the clamping rotating shaft 2. A transmission gear 62 is connected to the end of the vibration rotating shaft 6 far from the vibration cam 61. A transmission rack 63 is slidably connected to the frame body 1. The driving gear 23 and the transmission gear 62 are respectively meshed with the transmission rack 63.

[0035] As Figure 3 As shown in the figure, the transmission gear 62 includes a ratchet wheel 622 fixedly connected to the end of the vibration rotating shaft 6 and a wheel body 621 rotatably connected to the end of the vibration rotating shaft 6. A wheel cavity 623 for the ratchet wheel 622 to be embedded is arranged on the end surface of the wheel body 621. A ratchet tooth 7 is rotatably connected in the wheel cavity 623. A locking spring 71 for pushing the ratchet tooth 7 to rotate and engage with the ratchet wheel 622 is arranged in the ratchet tooth 7. When the two grabbing claws 21 rotate towards each other, the locking spring 71 pushes the ratchet tooth 7 to lock with the ratchet wheel 622, and the wheel body 621 rotates synchronously with the ratchet wheel 622; when the two grabbing claws 21 rotate away from each other, the wheel body 621 rotates relative to the ratchet wheel 622.

[0036] When using the mechanical claw, the robot moves the mechanical claw above the steel plate 8 and positions the steel plate 8 between the two grasping claws 21. The two clamping cylinders 3 simultaneously drive the two clamping rotating shafts 2 to rotate. The rotation of the two clamping rotating shafts 2 drives the two grasping claws 21 to rotate synchronously towards each other, so that the grasping claws 21 clamp the steel plate 8 between the two grasping grooves 22. While the clamping rotating shaft 2 rotates, it drives the gear 23 to rotate together with the clamping rotating shaft 2. The driving gear 23 drives the transmission rack 63 to slide. Through the sliding of the transmission rack 63, the transmission gear 62 is driven to rotate. The locking spring 71 pushes the ratchet tooth 7 to rotate and remain engaged with the ratchet wheel 622 for locking. The vibration rotating shaft 6 rotates synchronously with the wheel body 621, thereby driving the vibration cam 61 to rotate, realizing the sand spraying operation on the steel plate 8 while clamping the steel plate 8. After the sand spraying is completed, the clamping rotating shaft 2 stops rotating, and the vibration spring 44 pulls the sand discharging plate 5 to automatically reset and fit with the bottom of the borax groove 4. When the steel plate 8 is transported above the stamping die, the clamping cylinder 3 drives the two grasping claws 21 to rotate in the separating direction, so that the steel plate 8 falls onto the stamping die. At this time, the wheel body 621 part of the transmission gear 62 rotates, and the ratchet tooth 7 disengages from the meshing limit of the ratchet wheel 622, so that the wheel body 621 and the vibration rotating shaft 6 rotate relatively, and the vibration cam 61 stops rotating. The sand discharging disk still remains in contact with the bottom of the borax groove 4, restricting the outflow of borax, avoiding excessive borax from falling onto the stamping die, and reducing the wear of the die surface.

Claims

1. A mechanical claw for an axle stamping production line, Characterized in that: It includes a frame body (1), a clamping rotating shaft (2) hinged on the frame body (1). Grabbing claws (21) are respectively fixedly connected to the side walls of the two clamping rotating shafts (2). Grabbing grooves (22) are respectively arranged on the opposite sides of the two grabbing claws (21). A borax groove (4) is fixedly connected to the frame body (1). A plurality of sand outlets (41) are arranged at the bottom of the borax groove (4). A sand discharging plate (5) is slidably connected to the bottom of the borax groove (4). A plurality of sand discharging openings (51) are arranged on the sand discharging plate (5). The sand discharging openings (51) and the sand outlets (41) are arranged in a staggered manner. The sand discharging plate (5) slides and fits with the bottom of the borax groove (4) to completely block the sand outlets (41). A connecting plate (43) is fixedly connected to the outer wall of the borax groove (4). A vibration spring (44) is arranged between the connecting plate (43) and the sand discharging plate (5). The two ends of the vibration spring (44) are respectively fixedly connected to the connecting plate (43) and the sand discharging plate (5). The vibration spring (44) pulls the sand discharging plate (5) to fit with the bottom of the borax groove (4). A vibration rotating shaft (6) is rotatably connected to the frame body (1). One end of the vibration rotating shaft (6) is fixedly connected with a vibration cam (61). The outer wall of the vibration cam (61) is in contact with the sand discharging plate (5). A driving gear (23) is fixedly connected to the end of the clamping rotating shaft (2). A transmission gear (62) is connected to the end of the vibration rotating shaft (6) far away from the vibration cam (61). A transmission rack (63) is slidably connected to the frame body (1). The driving gear (23) and the transmission gear (62) are respectively meshed with the transmission rack (63). The transmission gear (62) includes a ratchet wheel (622) fixedly connected to the end of the vibration rotating shaft (6) and a wheel body (621) rotatably connected to the end of the vibration rotating shaft (6). A wheel cavity (623) for the ratchet wheel (622) to be embedded is arranged on the end face of the wheel body (621). A ratchet tooth (7) is rotatably connected in the wheel cavity (623). A locking spring (71) for pushing the ratchet tooth (7) to rotate and engage with the ratchet wheel (622) is arranged in the ratchet tooth (7). When the two grabbing claws (21) rotate towards each other, the locking spring (71) pushes the ratchet tooth (7) to lock with the ratchet wheel (622), and the wheel body (621) rotates synchronously with the ratchet wheel (622); when the two grabbing claws (21) rotate away from each other, the wheel body (621) and the ratchet wheel (622) rotate relatively.

2. The mechanical claw for an axle stamping production line according to claim 1, Characterized in that: Guide rods (54) are fixedly connected to both sides of the sand discharging plate (5). Guide sleeves (42) through which the guide rods (54) pass are fixedly connected to the outer wall of the borax groove (4).

3. The mechanical claw for an axle stamping production line according to claim 1, Characterized in that: Two clamping cylinders (3) are arranged on the frame body (1), and the two clamping cylinders respectively drive the two clamping rotating shafts (2) to rotate. The two ends of each clamping cylinder (3) are respectively hinged to the clamping rotating shaft (2) and the frame body (1).

4. A mechanical claw for an axle stamping production line according to claim 1, characterized in that: A guiding convex part (52) is arranged between two adjacent sand discharge openings (51). Guiding inclined surfaces (53) are arranged on both sides of the guiding convex part (52), and the guiding inclined surfaces (53) extend downward to the sand discharge openings (51).

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