An automatic feeding device for hot forming stamping

Abstract

The utility model discloses a kind of hot forming stamping automatic feeding devices, more specifically in the technical field of feeding device, including stand, the outer end of the stand is sleeved with lifting seat, the outer end of the lifting seat is equipped with the movable frame that can horizontally slide, the movable frame front side is equipped with two mounting brackets, the mounting bracket is equipped with multiple grabbing components for grabbing raw materials, the movable frame rear end is equipped with multiple detachable counterweight blocks.The utility model sets the counterweight block used for counterweight at movable frame rear end, using centrifugal force in the rotation process of counterweight block to offset centrifugal force in the rotation process of raw material, reduce the risk of being thrown off in the process of being rotated, moved of raw material, even if raw material falls off, since its stress direction is towards stand, raw material that falls off will also move towards the direction close to stand, will not be far away from stand, its range of influence is smaller, reduce the dangerousness when high-temperature raw material falls off.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, specifically to an automatic feeding device for thermoforming stamping. Background Technology

[0002] Stamping is a common metal processing technology in automobile production. It involves using external force to squeeze raw materials into a mold, deforming the materials and forming a workpiece of the corresponding shape. Currently, many automotive parts, including automotive body panels, can be made by stamping.

[0003] Depending on the temperature of the raw material during stamping, it can be divided into cold stamping and hot stamping. Cold stamping refers to the raw material being at room temperature during stamping, while hot stamping involves heating the raw material to hundreds or even thousands of degrees Celsius before stamping. After heating, the plasticity of the metal material is improved, making it easier to form during hot stamping.

[0004] Before hot stamping, the raw materials are heated to a high temperature, making manual feeding difficult. Mechanical equipment is needed to grab the raw materials and place them at the stamping die, such as the hot stamping raw material feeding machine with publication number CN209156937U in the prior art.

[0005] After being grabbed, the raw material needs to move a certain distance before reaching the stamping position. During this process, if the hot raw material falls off, it will continue to move under inertia. The direction of movement remains unchanged, but the path of movement is uncontrollable. In this process, the hot raw material can easily burn relevant personnel or cause damage to nearby equipment due to high temperature, resulting in low safety. Utility Model Content

[0006] The purpose of this invention is to provide an automatic feeding device for thermoforming stamping. By utilizing the centrifugal force of the counterweight during rotation to counteract the centrifugal force of the raw material during rotation, the risk of the grasped raw material being thrown off during rotation and movement is reduced, effectively improving safety.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for thermoforming stamping, including a column, a lifting seat that can slide up and down is sleeved on the outer end of the column, a moving frame that can slide horizontally is provided on the outer end of the lifting seat, two mounting frames are provided on the front side of the moving frame, and multiple gripping components for gripping raw materials are provided on the mounting frames.

[0008] The rear end of the movable frame is provided with multiple detachable counterweights. The weight of the counterweights is much greater than the sum of the weights of the front mounting frame, gripping components, and raw materials of the movable frame. A first electromagnet is installed on the rear side of the lifting seat, and a spring is provided on the front side of the lifting seat. The front end of the spring is connected to the inner wall of the movable frame. An iron plate is provided on the rear inner wall of the movable frame, and a base for controlling the rotation of the column is provided at the bottom of the column.

[0009] Furthermore, a pair of clamping plates are fixed on both sides of the lifting seat, and the two pairs of clamping plates are respectively clamped on both sides of the moving frame. Multiple ball bearings that contact the moving frame are fixed on the inner wall of the clamping plates to reduce the resistance when the moving frame moves back and forth. A hydraulic cylinder is provided at the top of the base, and the top of the hydraulic cylinder is connected to the lifting seat. The hydraulic cylinder is located on the front side of the column.

[0010] Furthermore, the base includes a base plate, a support frame is fixedly provided at the top of the base plate, a rotating platform is provided at the top of the support frame, a drive motor for driving the rotating platform to rotate is fixedly provided on the inner wall of the support frame, and the column and hydraulic cylinder are both fixedly provided at the top of the rotating platform.

[0011] Furthermore, the gripping component includes two fixed shafts symmetrically arranged at the bottom of the mounting frame, with two upright plates rotatably connected to the outer ends of the fixed shafts, and the top ends of the upright plates being fixedly connected to the bottom end of the mounting frame;

[0012] A gear is fixedly provided at the outer end of the fixed shaft, and torsion springs are provided on both sides of the gear. One end of the torsion spring is connected to the vertical plate on the corresponding side, and the torsion spring is sleeved on the outer end of the fixed shaft.

[0013] Furthermore, the gear has a fixed frame at the bottom, both ends of which are bent upwards and fixedly connected to both ends of the fixed shaft, and a clamping claw is fixedly provided at the bottom end of the fixed frame.

[0014] Furthermore, a rack is provided between the two gears in the same gripping component. The rack meshes with the two gears on both sides respectively. A guide rod is fixedly provided at the top of the rack. The cross-section of the guide rod is rectangular. The top of the guide rod extends into the interior of the mounting frame and is fixedly provided with an end plate. A second electromagnet is installed at the bottom of the end plate. The mounting frame is made of iron.

[0015] Furthermore, a linear motor is fixedly installed on the inner wall of the mounting frame, and a U-shaped frame is installed at the bottom of the mover of the linear motor. A roller for pressing the end plate is rotatably connected to the inner wall of the U-shaped frame.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. By setting a counterweight block at the rear end of the moving frame, the centrifugal force of the counterweight block during rotation is used to counteract the centrifugal force of the raw material during rotation, reducing the risk of the grabbed raw material being thrown off during rotation and movement. Even if the raw material falls off, because its force direction is towards the column, the fallen raw material will move towards the column and will not move away from the column. Its range of influence is small, reducing the danger if the high-temperature raw material falls off.

[0018] 2. The linear motor drives the rollers to move, and the rollers press the end plate downwards, thereby controlling the corresponding gripping components to have a chance to rest during the feeding interval. This avoids the grippers from being in continuous contact with high-temperature raw materials for a long time, which would cause their own temperature to become too high, thus reducing the adverse effects of high-temperature raw materials on the feeding device itself. Attached Figure Description

[0019] Figure 1 This is a front view of the present invention.

[0020] Figure 2 This is a rear view structural diagram of the present invention;

[0021] Figure 3 This is a structural diagram of the movable frame of this utility model;

[0022] Figure 4 This is a diagram showing the internal structure of the lifting seat of this utility model;

[0023] Figure 5 This is a diagram showing the internal structure of the base of this utility model;

[0024] Figure 6 This is a bottom view of the mounting frame and gripping assembly of this utility model;

[0025] Figure 7 This is a side sectional view of the mounting frame and gripping component of this utility model;

[0026] Figure 8 This is a sectional view of the fixing frame of this utility model;

[0027] Figure 9 This is a bottom view of the guide rod and rack structure of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Column; 101. Lifting base; 102. Moving frame; 103. Card plate; 2. Base; 201. Base plate; 202. Support frame; 203. Rotary table; 204. Drive motor;

[0030] 3. Mounting frame; 301. Linear motor; 302. U-shaped frame; 303. Roller; 4. Counterweight; 5. Gripping assembly; 501. Vertical plate; 502. Fixed shaft; 503. Gear; 504. Torsion spring; 505. Fixed frame; 506. Gripping claw; 6. Hydraulic cylinder; 7. First electromagnet; 8. Guide rod; 801. End plate; 802. Rack; 803. Second electromagnet; 9. Spring; 10. Iron sheet. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0032] This utility model provides, for example Figures 1-9 The automatic feeding device for thermoforming stamping shown includes a column 1, a lifting seat 101 that can slide up and down is sleeved on the outer end of the column 1, a moving frame 102 that can slide horizontally is provided on the outer end of the lifting seat 101, two mounting frames 3 are provided on the front side of the moving frame 102, and multiple gripping components 5 for gripping raw materials are provided on the mounting frames 3, and the gripping components 5 on the two mounting frames 3 are symmetrically arranged.

[0033] The feeding device is installed between the hot stamping equipment and the raw material heating equipment. After the raw material is heated to a high temperature inside the heating equipment, the lifting seat 101 slides down along the column 1 and drives the moving frame 102 to move down. The gripping component 5 at the front end of the moving frame 102 grips the heated raw material. Then the lifting seat 101 and the moving frame 102 move up, the column 1 rotates as a whole, and the moving frame 102 rotates and adjusts its direction. The gripping component 5 and the gripped raw material are transported towards the stamping die as they rotate. Then the moving frame 102 is controlled to slide relative to the lifting seat 101, pushing the gripping component 5 and the raw material away from the lifting seat 101 and conveying the raw material to the stamping die. After the gripping component 5 releases the raw material, the raw material falls into the die, thus completing the feeding. Automatic feeding by controlling the robotic arm and robotic claw through a program is a mature existing technology and will not be described in detail here.

[0034] During the gripping process, it is necessary to avoid prolonged contact between gripping component 5 and the high-temperature raw material, such as... Figure 6 , Figure 7 , Figure 8 As shown, the gripping component 5 includes two fixed shafts 502 symmetrically arranged at the bottom of the mounting frame 3. The outer ends of the fixed shafts 502 are rotatably connected to two upright plates 501. The top ends of the upright plates 501 are fixedly connected to the bottom end of the mounting frame 3.

[0035] A gear 503 is fixedly provided at the outer end of the fixed shaft 502. A torsion spring 504 is provided on both sides of the gear 503. One end of the torsion spring 504 is connected to the corresponding upright plate 501. The torsion spring 504 is sleeved on the outer end of the fixed shaft 502.

[0036] The gear 503 has a fixed frame 505 at its bottom. Both ends of the fixed frame 505 are bent upward and fixedly connected to both ends of the fixed shaft 502 respectively. The bottom end of the fixed frame 505 is fixedly provided with a clamping claw 506.

[0037] During gripping, the two gears 503 in the gripping assembly 5 are driven to rotate, which in turn drives the fixed shaft 502, the fixed frame 505, and the gripping claws 506 to rotate, causing the two gripping claws 506 to open. During this process, the torsion spring 504 tightens as the gears 503 rotate. After opening, as the gripping assembly 5 moves downward, the two gripping claws 506 move to both sides of the material. Subsequently, the elastic force of the torsion spring 504 is released, driving the gears 503, the fixed shaft 502, the fixed frame 505, and the gripping claws 506 to rotate back, causing the two open gripping claws 506 to close. The elastic force of the torsion spring 504 drives the gripping claws 506 to clamp the material. After clamping, the material is fixed, thus achieving the gripping of the material. When the material moves to the mold, the gripping claws 506 are opened again to release the material.

[0038] To drive the crawling component 5 to run, such as Figures 6-9 As shown, a rack 802 is provided between two gears 503 in the same gripping component 5. The rack 802 meshes with the two gears 503 on both sides respectively. A guide rod 8 is fixedly provided at the top of the rack 802. The cross-section of the guide rod 8 is rectangular. The top of the guide rod 8 extends into the interior of the mounting frame 3 and is fixedly provided with an end plate 801. The end plates 801 inside the same mounting frame 3 can be connected end to end. A second electromagnet 803 is installed at the bottom of the end plate 801. The mounting frame 3 is made of iron.

[0039] A linear motor 301 is fixedly installed on the inner wall of the mounting frame 3. A U-shaped frame 302 is installed at the bottom of the mover of the linear motor 301. A roller 303 for pressing the end plate 801 is rotatably connected to the inner wall of the U-shaped frame 302.

[0040] When gripping and releasing raw materials, all gripping components 5 need to unfold their gripping claws 506 simultaneously. At this time, the second electromagnet 803 is energized to generate magnetism. Under the action of magnetic force, the second electromagnet 803 is attracted to the inner wall of the mounting frame 3 and thus moves downward. The end plate 801, guide rod 8 and rack 802 move downward as a result. The rack 802 meshes with the two gears 503 of the corresponding gripping component 5. Therefore, the downward moving rack 802 drives the gears 503 to rotate, thereby driving the gripping claws 506 to unfold. After the second electromagnet 803 is de-energized and the magnetic force disappears, the elastic force of the torsion spring 504 drives the gears 503 to rotate. The gears 503 then drive the rack 802, guide rod 8 and end plate 801 to move upward.

[0041] During the feeding interval, the mover of the linear motor 301 drives the U-shaped frame 302 to move inside the mounting frame 3, and the roller 303 moves accordingly. During the movement, the roller 303 can contact each end plate 801 and roll on the top of the end plate 801 it contacts. At the same time, the roller 303 presses down on the end plate 801 it contacts, thereby pressing down the guide rod 8 and the rack 802, causing the gripping claw 506 of the gripping component 5 corresponding to the rack 802 to unfold and press the rack 802, so that the gripping claw 506 of the gripping component 5 remains in the unfolded state. However, when the gripping claws 506 of the gripping component 5 are extended, the gripping claws 506 of the other gripping components 5 continue to open and close normally to grip the raw materials. The extended gripping claws 506 are no longer in contact with the high-temperature raw materials and are no longer affected by the high temperature. Therefore, through the movement of the rollers 303, each gripping component 5 has a chance to rest during the feeding interval, avoiding the gripping claws 506 from being in continuous contact with the high-temperature raw materials for a long time, which would cause their own temperature to become too high. This reduces the adverse effects of the high-temperature raw materials on the feeding device itself.

[0042] In order to control the rotation of column 1 and drive the movement of raw materials, such as Figure 1 , Figure 2 , Figure 5 As shown, the bottom of the column 1 is provided with a base 2 for controlling the rotation of the column 1. The base 2 includes a base plate 201. A support frame 202 is fixedly provided at the top of the base plate 201. A rotating platform 203 is provided at the top of the support frame 202. A drive motor 204 for driving the rotating platform 203 to rotate is fixedly provided on the inner wall of the support frame 202.

[0043] The drive motor 204 can drive the rotary table 203 to rotate at the top of the support frame 202, thereby driving the rotation of the entire column 1. The axis of rotation of the support frame 202 is inside the column 1. Therefore, the rotation of the feeding device during operation is roughly around the column 1. The base plate 201 and the support frame 202 play a supporting and fixing role for the entire feeding device.

[0044] During operation, it is necessary to prevent raw materials from being thrown off, such as... Figures 1-4 As shown, the rear end of the movable frame 102 is provided with multiple detachable counterweights 4. The weight of the counterweights 4 is much greater than the sum of the weights of the front mounting frame 3, the gripping component 5, and the raw material of the movable frame 102. A first electromagnet 7 is installed on the rear side of the lifting seat 101, and a spring 9 is provided on the front side of the lifting seat 101. The front end of the spring 9 is connected to the inner wall of the movable frame 102. An iron plate 10 is provided on the rear inner wall of the movable frame 102. When the first electromagnet 7 is energized, it can generate magnetic force and attract the iron plate 10. Under the action of the attraction force, the movable frame 102 slides horizontally relative to the lifting seat 101, pushing the mounting frame 3 and the gripping component 5 to move away from the column 1. During the movement of the movable frame 102, the spring 9 is also stretched. When the first electromagnet 7 is de-energized, the elastic force of the spring 9 is released, pulling the movable frame 102 back to its original position. This can control the horizontal distance between the gripping component 5 and the column 1, making it easy to adjust the gripping position and to accurately transport the raw material to the mold during loading.

[0045] A pair of clamping plates 103 are fixedly provided on both sides of the lifting seat 101. The two pairs of clamping plates 103 are respectively clamped on both sides of the moving frame 102. Multiple ball bearings that contact the moving frame 102 are fixed on the inner wall of the clamping plate 103 to reduce the resistance when the moving frame 102 moves back and forth. The moving frame 102 is clamped to the outer end of the lifting seat 101 by the clamping plate 103 and can slide horizontally relative to the lifting seat 101. A hydraulic cylinder 6 is provided at the top of the base 2. The top of the hydraulic cylinder 6 is connected to the lifting seat 101. The hydraulic cylinder 6 can drive the lifting seat 101 to move up and down along the column 1. The hydraulic cylinder 6 is located on the front side of the column 1. The column 1 and the hydraulic cylinder 6 are both fixedly provided at the top of the rotating table 203.

[0046] Under natural conditions without external force, spring 9 naturally extends. At this time, the horizontal distance between the counterweight 4 and the column 1 is greater than the horizontal distance between the grasped material and the column 1. Therefore, during the rotation of the column 1, the centrifugal force of the counterweight 4 at the rear end of the moving frame 102 is greater than the centrifugal force generated by the mounting bracket 3, the grasping component 5, and the material at the front end of the moving frame 102. As a result, during rotation, the centrifugal force generated by the counterweight 4 cancels out the centrifugal force of each structure at the front end of the moving frame 102 and drives the moving frame 102 to slide, causing the counterweight 4 to move and tend to continue moving away from the column 1. Meanwhile, the material grasped at the front end of the moving frame 102 tends to continue moving closer to the column 1. By canceling out the centrifugal force in this way, the risk of the grasped material being thrown off during rotation and movement is reduced. Even if the material falls off, because its force direction is towards the column 1, the fallen material will move towards the column 1 and will not move away from the column 1. Its range of influence is small, reducing the danger of high-temperature material falling off, avoiding burns to personnel, and preventing equipment damage due to high temperature.

Claims

1. An automatic feeding device for thermoforming stamping, comprising a column (1), wherein a lifting seat (101) capable of sliding up and down is sleeved on the outer end of the column (1), characterized in that: The lifting seat (101) has a movable frame (102) that can slide horizontally at its outer end. The movable frame (102) has two mounting brackets (3) on its front side. The mounting brackets (3) have multiple gripping components (5) for gripping raw materials. The rear end of the movable frame (102) is provided with multiple detachable counterweights (4), the rear side of the lifting seat (101) is provided with a first electromagnet (7), the front side of the lifting seat (101) is provided with a spring (9), the front end of the spring (9) is connected to the inner wall of the movable frame (102), the rear inner wall of the movable frame (102) is provided with an iron plate (10), and the bottom of the column (1) is provided with a base (2) for controlling the rotation of the column (1).

2. The automatic feeding device for thermoforming stamping according to claim 1, characterized in that: The lifting seat (101) has a pair of clamping plates (103) fixed on both sides. The two pairs of clamping plates (103) are respectively clamped on both sides of the moving frame (102). The base (2) has a hydraulic cylinder (6) at the top, and the top of the hydraulic cylinder (6) is connected to the lifting seat (101).

3. The automatic feeding device for thermoforming stamping according to claim 1, characterized in that: The base (2) includes a base plate (201), a support frame (202) is fixedly provided at the top of the base plate (201), a rotating platform (203) is provided at the top of the support frame (202), and a drive motor (204) for driving the rotating platform (203) to rotate is fixedly provided on the inner wall of the support frame (202). The column (1) and the hydraulic cylinder (6) are both fixedly provided at the top of the rotating platform (203).

4. The automatic feeding device for thermoforming stamping according to claim 1, characterized in that: The gripping component (5) includes two fixed shafts (502) symmetrically arranged at the bottom of the mounting frame (3). The outer ends of the fixed shafts (502) are rotatably connected to two upright plates (501). The top ends of the upright plates (501) are fixedly connected to the bottom ends of the mounting frame (3). A gear (503) is fixedly provided at the outer end of the fixed shaft (502). A torsion spring (504) is provided on both sides of the gear (503). One end of the torsion spring (504) is connected to the corresponding upright plate (501).

5. The automatic feeding device for thermoforming stamping according to claim 4, characterized in that: The gear (503) has a fixed frame (505) at the bottom. Both ends of the fixed frame (505) are bent upward and fixedly connected to both ends of the fixed shaft (502). The bottom end of the fixed frame (505) is fixedly provided with a clamping claw (506).

6. The automatic feeding device for thermoforming stamping according to claim 5, characterized in that: A rack (802) is provided between two gears (503) in the same gripping component (5). The rack (802) meshes with the two gears (503) on both sides respectively. A guide rod (8) is fixedly provided at the top of the rack (802). The top of the guide rod (8) extends into the mounting frame (3) and is fixedly provided with an end plate (801). A second electromagnet (803) is installed at the bottom of the end plate (801).

7. The automatic feeding device for thermoforming stamping according to claim 1, characterized in that: A linear motor (301) is fixedly installed on the inner wall of the mounting bracket (3). A U-shaped frame (302) is installed at the bottom of the mover of the linear motor (301). A roller (303) for pressing the end plate (801) is rotatably connected on the inner wall of the U-shaped frame (302).

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