A transmission device for stamping automotive parts and its usage method

Abstract

The present invention discloses a transmission device for stamping automotive parts and its usage method, which includes two bottom plates. A transmission mechanism is fixedly installed on the tops of the two bottom plates, and a stamping mechanism is fixedly installed on the tops of the two bottom plates. By setting up a conveying mechanism to convey automotive parts, when the automotive parts move into the stamping mechanism, the hydraulic telescopic rod is started, and the entire transmission device can be moved downward. At this time, the electric telescopic rod is started to release the fixation of the automotive parts, and the automotive parts are placed on the lower pressing die. Then, the stamping mechanism can be started to stamp the metal plate. After stamping is completed, the hydraulic telescopic rod is started to lift the automotive parts from the lower pressing die. At this time, the motor is started again to convey the stamped metal plate outwards, which solves the danger brought by manual conveying and also solves the problem of excessive cost caused by robotic arm conveying.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission devices, and particularly to a transmission device for stamping automotive parts and its usage method. Background Art

[0002] Automotive parts, as the foundation of the automotive industry, are essential factors to support the sustainable and healthy development of the automotive industry. Especially in the current vigorous and booming independent development and innovation in the automotive industry, a strong parts system is even more needed for support. Most of the existing automotive parts are integrally stamped by stamping devices. During the stamping process of automotive parts, a transmission device is used to transport the automotive parts. Therefore, a transmission device for automotive parts is required.

[0003] In the prior art, such as Chinese Patent No.: CN 109261777 A, an automotive part stamping device includes a part stamping fixed die. The lower end of the part stamping fixed die is fixedly connected to an automotive part stamping base, and four stamping moving die slide rod columns are fixedly connected to the upper end of the part stamping fixed die. It can detect the stamping material before the stamping moving die stamps the stamping material, facilitating the early discovery of unqualified stamping materials before the stamping work, reducing the production time wasted due to unqualified products, improving the working efficiency of the stamping forming process. At the same time, when the stamping machine for producing automotive parts stamps the raw material, when the raw material placed on the lower stamping die is displaced under the pressure of the upper stamping die, it can timely adjust the position of the raw material, thereby improving the stamping effect of the upper stamping die on the raw material and increasing the qualified rate of the finished products of automotive part stamping processing.

[0004] In the above patent, although the device can detect the stamping material before the stamping moving die stamps the stamping material by setting four stamping moving die slide rod columns, facilitating the early discovery of unqualified stamping materials before the stamping work, reducing the production time wasted due to unqualified products, and improving the working efficiency of the stamping forming process, during the process of loading automotive parts onto the device, it is still necessary to manually or use a robotic arm to transport the parts to the stamping device. After stamping is completed, the automotive parts are manually or removed by the robotic arm. The manual method is very dangerous and is likely to cause harm to the operator. The operation method of the robotic arm not only increases the equipment cost but also increases the site cost.

[0005] Therefore, we propose a transmission device for stamping automotive parts and its usage method to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a transmission device for stamping automobile parts and a method of using the same. By setting up a conveying mechanism, the conveying, loading and unloading are integrated, which solves the dangers brought by manual conveying and the problem of high costs caused by robotic arm conveying.

[0007] To achieve the above object, the present invention provides the following technical solution: a transmission device for stamping automobile parts, comprising two bottom plates, a transmission mechanism is fixedly installed on the top of the two bottom plates, and a stamping mechanism is fixedly installed on the top of the two bottom plates;

[0008] The transmission mechanism includes four first reinforcing plates, the tops of the four first reinforcing plates are fixedly installed with hydraulic telescopic rods, the tops of every two of the four hydraulic telescopic rods are fixedly installed with support frames, the bottoms of the two support frames are welded with connecting columns, the bottoms of the two connecting columns are welded with cross bars, the outer walls of the two cross bars are welded with first support plates on both sides, the tops of the two first support plates are welded with two second reinforcing plates, the tops of the four second reinforcing plates are welded with rectangular columns, the tops of the four rectangular columns are welded with third reinforcing plates, the tops of every two of the four third reinforcing plates are welded with second support plates, and a group of metal rods are movably inserted between the two first support plates and the two second support plates on opposite sides, and the two groups of metal rods are welded together. The outer walls are fixedly sleeved with rollers, and two conveyor belts are movably sleeved between the outer walls of the two groups of rollers. Multiple groups of fourth reinforcing plates are fixedly installed on the outer surfaces of the two conveyor belts, and rectangular shells are welded on the tops of the multiple groups of fourth reinforcing plates. An electric telescopic rod is arranged on the opposite side of each group of the multiple groups of rectangular shells, and a circular plate is fixedly sleeved on the output end of each electric telescopic rod, and a supporting plate is welded on one side of the outer wall of each of the circular plates. A first guide wheel is fixedly sleeved on one end of the outer wall of one of the two groups of metal rods, and a sleeve is fixedly installed on the bottom of one of the two second support plates, and a motor is fixedly inserted on the inner wall of the sleeve, and a second guide wheel is fixedly sleeved on the output end of the motor, and a first belt is movably sleeved between the outer walls of the first guide wheel and the second guide wheel.

[0009] Preferably, the stamping mechanism includes two fixed columns, a support platform is fixedly installed between opposite sides of the two fixed columns, a stamping platform is fixedly installed on the top of the support platform, a group of dampers is fixedly installed on the top of the stamping platform, a downward pressing mold is fixedly installed on the top of a group of dampers, a protective shell is fixedly installed between opposite sides of the two fixed columns, two hydraulic rods are arranged at the bottom of the protective shell, and an upward pressing mold is arranged at the bottom of the two hydraulic rods, so as to facilitate the stamping work on the metal plate under the action of the stamping mechanism.

[0010] Preferably, springs are movably sleeved on the outer surfaces of the four dampers, and each spring is located between the stamping table and the lower die, facilitating the stamping work of the stamping mechanism under the action of the springs.

[0011] Preferably, a group of first cylinders are fixedly installed on the top of the stamping table, and a group of second cylinders are fixedly installed on the bottom of the lower die. Each first cylinder and each second cylinder are respectively movably sleeved on the outer surfaces of each spring, facilitating the limitation of the springs under the action of the first cylinders and the second cylinders.

[0012] Preferably, a group of connecting belts are fixedly installed between the opposite sides of the two conveyor belts, and the shape and size of each connecting belt are equal, facilitating the connection of the two belts under the action of the connecting belts.

[0013] Preferably, third guide wheels are fixedly sleeved on one ends of the outer walls of each of the two groups of metal rods, and second belts are movably sleeved between the outer surfaces of each group of the third guide wheels, facilitating the rotation of the entire group of rollers under the driving connection of the second belts.

[0014] Preferably, fourth guide wheels are fixedly sleeved on one ends of the outer walls of two of the two groups of metal rods, and a third belt is movably sleeved between the outer surfaces of the two fourth guide wheels, facilitating the simultaneous rotation of the two groups of rollers under the action of the third belt.

[0015] Preferably, two counterweight plates are welded between the opposite sides of the two bottom plates, and the shape and size of the two counterweight plates are equal, facilitating the support and fixation of the entire device under the action of the counterweight plates.

[0016] Preferably, the bottoms of every two of the four first reinforcing plates are respectively welded to the tops of the two bottom plates, and the bottoms of the two fixed columns are respectively welded to the tops of the two bottom plates.

[0017] A usage method of a transmission device for stamping automotive parts includes the following steps:

[0018] Step 1: First, start the hydraulic telescopic rod to lift the entire transmission mechanism to a certain height. At this time, place the metal plate to be stamped between a group of rectangular housings, and then start the electric telescopic rod. At this time, the electric telescopic rod will squeeze inward until the metal plate is fixed.

[0019] Step 2: After the metal plate is fixed, start the motor, which will drive the entire conveyor belt to rotate, so that the metal plate fixed on it can be moved until the metal plate moves above the lower die.

[0020] Step 3: At this time, start the hydraulic telescopic rod to move the entire transmission mechanism downward until the metal plate fits above the lower pressing die. Then retract the electric telescopic rod, and the metal plate will be placed on the lower pressing die. At this time, the metal plate can be stamped.

[0021] Step 4: Start the hydraulic rod, and the hydraulic rod will press the upper pressing die downward until the upper pressing die completely presses the metal plate into the lower pressing die, thus completing the stamping work of the metal plate. After the stamping is completed, start the hydraulic rod to lift the upper pressing die upward.

[0022] Step 5: At this time, start the electric telescopic rod to insert the support plate under the stamped metal plate. Then start the hydraulic telescopic rod, which will lift the entire transmission mechanism upward. At this time, start the motor again to convey the stamped metal plate outwards.

[0023] Step 6: After the metal plate is conveyed out of the stamping mechanism, start the electric telescopic rod to release the fixation of the automotive part. Since the metal plate has left the range of the stamping mechanism, at this time, the worker can safely remove the stamped automotive part from the conveyor belt.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By setting up the conveying mechanism, the present invention integrates conveying, loading, and unloading, which not only solves the danger brought by manual conveying but also solves the problem of excessively high costs caused by robotic arm conveying. First, place the automotive part to be stamped on the conveyor belt. Then start the motor, and the entire conveyor belt will rotate, driving the automotive part forward until it is conveyed above the lower pressing die. At this time, start the hydraulic telescopic rod to drive the entire transmission mechanism downward until the automotive part fits above the lower pressing die. Then start the electric telescopic rod to make the support plate retract outwards, releasing the fixation of the automotive part. The automotive part is placed on the lower pressing die. At this time, the stamping mechanism can be started to stamp the metal plate. After the stamping is completed, lift the upper pressing die upward. Then start the electric telescopic rod to insert the support plate under the stamped automotive part. Then start the hydraulic telescopic rod to lift the entire transmission mechanism upward, lifting the automotive part from the lower pressing die. At this time, start the motor again to convey the stamped metal plate outwards. Since all the parts of the entire device are conveyed and loaded through the transmission mechanism, there is no need for manual feeding or additional robotic arms for auxiliary feeding, thus solving the problems raised in the above background.

[0026] 2. The present invention is provided with an electric telescopic rod to clamp automotive parts, so it can fix and convey automotive parts of any model, which increases the portability of the device. A damper and a spring are arranged below the lower pressing die. When the upper pressing die presses the lower pressing die, due to the shock-absorbing effect of the damper and the spring, the extrusion force of the upper pressing die on the lower pressing die is reduced, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a front view three-dimensional structure diagram of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0028] Figure 2 is a bottom view three-dimensional structure diagram of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0029] Figure 3 is a side view three-dimensional structure diagram of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0030] Figure 4 is a front view three-dimensional structure diagram of the transmission mechanism of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0031] Figure 5 is an enlarged three-dimensional structure diagram of FIG. A of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0032] Figure 6 is an enlarged three-dimensional structure diagram of FIG. B of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0033] Figure 7 is a front view three-dimensional structure diagram of the stamping mechanism of a transmission device for stamping automotive parts and its usage method according to the present invention;

[0034] Figure 8 is a side view three-dimensional structure diagram of the stamping mechanism of a transmission device for stamping automotive parts and its usage method according to the present invention.

[0035] In the figure: 1. Bottom plate; 2. Transmission mechanism; 201. First reinforcing plate; 202. Hydraulic telescopic rod; 203. Support frame; 204. Connecting column; 205. Cross bar; 206. First support plate; 207. Second reinforcing plate; 208. Rectangular column; 209. Third reinforcing plate; 210. Second support plate; 211. Metal rod; 212. Roller; 213. Transmission belt; 214. Fourth reinforcing plate; 215. Rectangular outer shell; 216. Electric telescopic rod; 217. Circular plate; 218. Support plate; 219. First guide wheel; 220. Sleeve; 221. Motor; 222. Second guide wheel; 223. First belt; 224. Third guide wheel; 225. Second belt; 226. Fourth guide wheel; 227. Third belt; 228. Connecting belt; 3. Stamping mechanism; 301. Fixed column; 302. Support platform; 303. Stamping table; 304. Damper; 305. Lower pressing die; 306. Spring; 307. First cylinder; 308. Second cylinder; 309. Protective outer shell; 310. Hydraulic rod; 311. Upper pressing die; 4. Counterweight plate. Detailed implementation mode

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 - 8 As shown in the figure, the present invention provides a technical solution: a transmission device for stamping automotive parts and its use method, including two bottom plates 1, a transmission mechanism 2 is fixedly installed on the top of the two bottom plates 1, and a stamping mechanism 3 is fixedly installed on the top of the two bottom plates 1;

[0038] The transmission mechanism 2 includes four first reinforcement plates 201, and the tops of the four first reinforcement plates 201 are fixedly installed with hydraulic telescopic rods 202. When the hydraulic telescopic rods 202 are started, the entire transmission mechanism 2 can be driven to rise and fall. The tops of each of the four hydraulic telescopic rods 202 are fixedly installed with support frames 203, and the bottoms of the two support frames 203 are welded with connecting columns 204. The bottoms of the two connecting columns 204 are welded with cross bars 205. The outer walls of the two cross bars 205 are welded with first support plates 206 on both sides, and the cross bars 205 have a connecting function for the first support plates 206. Two second reinforcing plates 207 are welded to the tops of the two first support plates 206, rectangular columns 208 are welded to the tops of the four second reinforcing plates 207, third reinforcing plates 209 are welded to the tops of the four rectangular columns 208, and second support plates 210 are welded to the tops of every two of the four third reinforcing plates 209. The rectangular columns 208 have a connecting and fixing function for the first support plates 206 and the second support plates 210. A group of metal rods 211 are movably inserted between the two first support plates 206 and the opposite sides of the two second support plates 210. The two groups of metal rods 211 are The outer walls are fixedly sleeved with rollers 212, and two conveyor belts 213 are movably sleeved between the outer walls of the two groups of rollers 212. The rollers 212 have a fixed transmission function for the conveyor belts 213. The outer surfaces of the two conveyor belts 213 are fixedly installed with multiple groups of fourth reinforcing plates 214. The tops of the multiple groups of fourth reinforcing plates 214 are welded with rectangular shells 215. The opposite side of each group of the multiple groups of rectangular shells 215 is provided with an electric telescopic rod 216. The output end of each electric telescopic rod 216 is fixedly sleeved with a circular plate 217, and one side of the outer wall of each circular plate 217 is welded with a support plate 2 18. A first guide wheel 219 is fixedly sleeved on one end of the outer wall of one of the two groups of metal rods 211, a sleeve 220 is fixedly installed on the bottom of one of the two second support plates 210, a motor 221 is fixedly inserted into the inner wall of the sleeve 220, a second guide wheel 222 is fixedly sleeved on the output end of the motor 221, a first belt 223 is movably sleeved between the outer walls of the first guide wheel 219 and the second guide wheel 222, and starting the motor 221 will drive the second guide wheel 222 to rotate, and due to the transmission connection function of the first belt 223, the entire transmission mechanism 2 will be driven to rotate.

[0039] At the same time according to Figure 1 , Figure 2 , Figure 3 and Figure 7 , Figure 8As shown in the figure, the stamping mechanism 3 includes two fixed columns 301. A support platform 302 is fixedly installed between the opposite sides of the two fixed columns 301. A stamping platform 303 is fixedly installed on the top of the support platform 302. A set of dampers 304 is fixedly installed on the top of the stamping platform 303. A lower pressing die 305 is fixedly installed on the top of the set of dampers 304. A protective housing 309 is fixedly installed between the opposite sides of the two fixed columns 301. Two hydraulic rods 310 are arranged at the bottom of the protective housing 309. An upper pressing die 311 is arranged at the bottom of the two hydraulic rods 310. Starting the hydraulic rods 310 can drive the upper pressing die 311 to press downward. When the upper pressing die 311 presses downward, it will extrude the automotive parts at the bottom, thus completing the stamping work on the automotive parts.

[0040] According to Figure 8 As shown in the figure, the outer walls of the four dampers 304 are all movably sleeved with springs 306, and each spring 306 is located between the stamping platform 303 and the lower pressing die 305. When the upper pressing die 311 presses downward, the springs 306 will contract inward. Due to the shock-absorbing effects of the dampers 304 and the springs 306, the extrusion force of the upper pressing die 311 on the lower pressing die 305 is reduced, thereby increasing the service life of the device.

[0041] According to Figure 8 As shown in the figure, a set of first cylinders 307 is fixedly installed on the top of the stamping platform 303. A set of second cylinders 308 is fixedly installed on the bottom of the lower pressing die 305, and each first cylinder 307 and each second cylinder 308 are respectively movably sleeved on the outer walls of each spring 306. The first cylinders 307 and the second cylinders 308 are movably sleeved on the outer walls of the springs 306, thus having a limiting effect on the springs 306.

[0042] According to Figures 1 - 4 As shown in the figure, a set of connecting belts 228 is fixedly installed between the opposite sides of the two conveyor belts 213, and the shape and size of each connecting belt 228 are equal. The connecting belts 228 can connect the two conveyor belts 213, so that the two conveyor belts 213 can be transmitted synchronously.

[0043] According to Figures 1 - 4 As shown in the figure, third guide wheels 224 are fixedly sleeved on one end of the outer walls of each of the two groups of metal rods 211. Second belts 225 are movably sleeved between the outer walls of each group of the two groups of third guide wheels 224. Due to the driving connection of the second belts 225, the entire group of rollers 212 can be driven to rotate.

[0044] According to Figure 1 and Figure 3 、 Figure 4As shown, at one end of the outer walls of two of the two groups of metal rods 211, fourth guide wheels 226 are fixedly sleeved. A third belt 227 is movably sleeved between the outer surfaces of the two fourth guide wheels 226. Due to the transmission connection of the third belt 227, the upper and lower groups of rollers 212 can be transmission-connected, thereby driving the entire group of rollers 212 to rotate.

[0045] According to Figures 1 - 4 As shown, two counterweight plates 4 are welded between the opposite sides of the two base plates 1, and the two counterweight plates 4 are equal in shape and size. The counterweight plates 4 not only have a supporting effect but also can increase the stability of the entire device.

[0046] According to Figures 1 - 8 As shown, the bottoms of every two of the four first reinforcing plates 201 are respectively welded to the tops of the two base plates 1, and the bottoms of the two fixed columns 301 are respectively welded to the tops of the two base plates 1.

[0047] The working principle of the whole mechanism is as follows: First, place this device at the designated position. At this time, place the automotive parts to be stamped between a set of pallets 218. Then start the electric telescopic rod 216, and the pallets 218 will squeeze inward until the automotive parts are fixed on the transmission mechanism 2. Then start the motor 221, which will drive the second guide wheel 222 to rotate. When the second guide wheel 222 rotates, due to the transmission connection of the first belt 223, one of the rollers 212 will be driven to rotate. Due to the transmission connection of the second belt 225 and the third belt 227, the whole set of rollers 212 will be driven to rotate, and then the conveyor belt 213 will be driven to rotate. So the automotive parts will be conveyed forward until they are conveyed above the lower pressing die 305. At this time, start the hydraulic telescopic rod 202, which will drive the whole transmission mechanism 2 to move downward until the automotive parts are attached above the lower pressing die 305. Then retract the electric telescopic rod 216 to make the pallets 218 retract outward, thus releasing the fixation of the automotive parts. At this time, the automotive parts are placed on the lower pressing die 305. Then start the hydraulic rod 310 to press the upper pressing die 311 downward until the upper pressing die 311 completely presses the metal plate into the lower pressing die 305. In this way, the stamping work of the automotive parts is completed. After the stamping is completed, start the hydraulic rod 310 to lift the upper pressing die 311 upward. Then start the electric telescopic rod 216 to insert the pallets 218 under the stamped automotive parts. At this time, start the hydraulic telescopic rod 202 to lift the whole transmission mechanism 2 upward, thus lifting the automotive parts from the lower pressing die 305. Then start the motor 221 again to convey the stamped automotive parts outward. Since the automotive parts of the whole device are transmitted and loaded through the transmission mechanism 2, there is no need for manual feeding, nor is there a need for an additional robotic arm to assist in feeding, thus solving the problems raised in the above background.

[0048] The present invention also provides a method for using a transmission device for stamping automotive parts, including the following steps:

[0049] Step 1: First, start the hydraulic telescopic rod 202 to lift the whole transmission mechanism 2 to a certain height. At this time, place the metal plate to be stamped between a set of rectangular outer shells 215. Then start the electric telescopic rod 216, and the electric telescopic rod 216 will squeeze inward until the pallets 218 are inserted under the metal plate to fix the metal plate.

[0050] Step 2: After the metal plate is fixed, start the motor 221. Due to the transmission connection of the first belt 223, the second belt 225, and the third belt 227, the entire set of rollers 212 will be driven to rotate, and then the entire conveyor belt 213 will be driven to rotate, so that the metal plate fixed on it can be moved until the metal plate moves above the lower pressing die 305.

[0051] Step 3: At this time, start the hydraulic telescopic rod 202 to make the entire transmission mechanism 2 move downward until the metal plate fits above the lower pressing die 305. Then retract the electric telescopic rod 216, and the support plate 218 will be withdrawn from below the metal plate, so that the metal plate will be placed on the lower pressing die 305. At this time, the metal plate can be stamped.

[0052] Step 4: Start the hydraulic rod 310, and the hydraulic rod 310 will press the upper pressing die 311 downward until the upper pressing die 311 completely presses the metal plate into the lower pressing die 305, thus completing the stamping work of the metal plate. After the stamping is completed, start the hydraulic rod 310 to lift the upper pressing die 311 upward.

[0053] Step 5: At this time, start the electric telescopic rod 216 to insert the support plate 218 under the stamped metal plate. Then start the hydraulic telescopic rod 202, which will lift the entire transmission mechanism 2 upward. When the transmission mechanism 2 moves upward, the metal plate will be lifted from the lower pressing die 305. At this time, start the motor 221 again to convey the stamped metal plate outwards.

[0054] Step 6: After the metal plate is conveyed out of the stamping mechanism 3, start the electric telescopic rod 216 to release the fixation of the automotive part. Since the metal plate has left the range of the stamping mechanism 3, at this time, the operator can safely remove the stamped automotive part from the conveyor belt 213.

[0055] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A transmission device for stamping automotive parts, characterized in that: it includes two bottom plates (1), a transmission mechanism (2) is fixedly installed on the top of the two bottom plates (1), and a stamping mechanism (3) is fixedly installed on the top of the two bottom plates (1); The transmission mechanism (2) includes four first reinforcing plates (201), hydraulic telescopic rods (202) are fixedly installed on the top of the four first reinforcing plates (201), and support frames (203) are fixedly installed on the top of every two of the four hydraulic telescopic rods (202). Connecting columns (204) are welded to the bottoms of the two support frames (203), cross bars (205) are welded to the bottoms of the two connecting columns (204), first support plates (206) are welded to both sides of the outer walls of the two cross bars (205), and two second reinforcing plates (207) are welded to the tops of the two first support plates (206). Rectangular columns (208) are welded to the tops of the four second reinforcing plates (207), third reinforcing plates (209) are welded to the tops of the four rectangular columns (208), and second support plates (210) are welded to the tops of every two of the four third reinforcing plates (209). A group of metal rods (211) are movably inserted between the opposite sides of the two first support plates (206) and the two second support plates (210). Drum (212) is fixedly sleeved on the outer surface walls of the two groups of metal rods (211), and two transmission belts (213) are movably sleeved between the outer surface walls of the two drums (212). A plurality of groups of fourth reinforcing plates (214) are fixedly installed on the outer surfaces of the two transmission belts (213), rectangular outer shells (215) are welded to the tops of the plurality of groups of fourth reinforcing plates (214), electric telescopic rods (216) are arranged on the opposite sides of each group of the plurality of rectangular outer shells (215), and a circular plate (217) is fixedly sleeved on the output end of each electric telescopic rod (216). A support plate (218) is welded to one side of the outer wall of each circular plate (217). A first guide wheel (219) is fixedly sleeved on one end of the outer wall of one of the two groups of metal rods (211), a sleeve (220) is fixedly installed on the bottom of one of the two second support plates (210), a motor (221) is fixedly inserted into the inner wall of the sleeve (220), and a second guide wheel (222) is fixedly sleeved on the output end of the motor (221). A first belt (223) is movably sleeved between the outer surface walls of the first guide wheel (219) and the second guide wheel (222); Fourth guide wheels (226) are fixedly sleeved on one ends of the outer walls of the two of the two groups of metal rods (211), and a third belt (227) is movably sleeved between the outer surface walls of the two fourth guide wheels (226).

2. The transmission device for stamping automotive parts according to claim 1, characterized in that: The stamping mechanism (3) includes two fixed columns (301). A support platform (302) is fixedly installed between the opposite sides of the two fixed columns (301). A stamping platform (303) is fixedly installed on the top of the support platform (302). A set of dampers (304) is fixedly installed on the top of the stamping platform (303). A downward pressing die (305) is fixedly installed on the top of the set of dampers (304). A protective housing (309) is fixedly installed between the opposite sides of the two fixed columns (301). Two hydraulic rods (310) are arranged at the bottom of the protective housing (309). An upward pressing die (311) is arranged at the bottom of the two hydraulic rods (310).

3. The conveying device for stamping automotive parts according to claim 2, characterized in that: The outer walls of the four dampers (304) are all movably sleeved with springs (306), and each spring (306) is located between the stamping platform (303) and the downward pressing die (305).

4. The conveying device for stamping automotive parts according to claim 2, characterized in that: A set of first cylinders (307) is fixedly installed on the top of the stamping platform (303). A set of second cylinders (308) is fixedly installed on the bottom of the downward pressing die (305), and each first cylinder (307) and each second cylinder (308) are respectively movably sleeved on the outer walls of each spring (306).

5. The conveying device for stamping automotive parts according to claim 1, characterized in that: A set of connecting belts (228) is fixedly installed between the opposite sides of the two conveyor belts (213), and the shape and size of each connecting belt (228) are equal.

6. The conveying device for stamping automotive parts according to claim 1, characterized in that: A third guide wheel (224) is fixedly sleeved on one end of the outer wall of each of the two groups of metal rods (211). A second belt (225) is movably sleeved between the outer walls of each group of the two groups of third guide wheels (224).

7. The conveying device for stamping automotive parts according to claim 1, characterized in that: Two counterweight plates (4) are welded between the opposite sides of the two bottom plates (1), and the shape and size of the two counterweight plates (4) are equal.

8. The conveying device for stamping automotive parts according to claim 2, characterized in that: The bottoms of every two of the four first reinforcing plates (201) are respectively welded to the tops of the two bottom plates (1), and the bottoms of the two fixed columns (301) are respectively welded to the tops of the two bottom plates (1).

9. A usage method of a conveying device for stamping automotive parts, using the conveying device for stamping automotive parts according to claim 8, comprising the following steps: S1: Place the metal plate to be stamped between a group of rectangular outer shells (215), and then start the electric telescopic rod (216). At this time, the electric telescopic rod (216) will squeeze inward until the metal plate is fixed; S2: After the metal plate is fixed, start the motor (221), which will drive the entire conveyor belt (213) to rotate, so that the metal plate fixed on it can be moved until the metal plate moves above the lower pressing die (305); S3: At this time, start the hydraulic telescopic rod (202) to make the entire transmission mechanism (2) move downward until the metal plate fits above the lower pressing die (305). Then retract the electric telescopic rod (216), and the metal plate will be placed on the lower pressing die (305). At this time, the metal plate can be stamped; S4: Start the hydraulic rod (310), and the hydraulic rod (310) will press the upper pressing die (311) downward, so that the stamping work of the metal plate is completed. After the stamping is completed, start the hydraulic rod (310) to lift the upper pressing die (311) upward; S5: At this time, start the electric telescopic rod (216), and the pallet (218) will be inserted under the stamped metal plate. Then start the hydraulic telescopic rod (202), which will lift the entire transmission mechanism (2) upward. At this time, start the motor (221) again to convey the stamped metal plate outwards; S6: When the metal plate is conveyed out of the stamping mechanism (3), start the electric telescopic rod (216) to release the fixation of the automotive part. Since the metal plate has left the range of the stamping mechanism (3), at this time, the worker can safely remove the stamped automotive part from the conveyor belt (213).

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