A door sill stamping device and method for preventing part misalignment

Abstract

This invention discloses a door sill stamping device and method for preventing part misalignment, belonging to the technical field of stamping equipment. It includes a press body and a mounting frame; an auxiliary drawing mechanism is provided on the lower die; a discharge conveyor is fixedly installed on the left side of the press body, and a feed conveyor is fixedly installed on the right side of the press body; a synchronous oiling mechanism is provided between the upper die and the feed conveyor, and an automatic feeding mechanism is provided at the feed end of the feed conveyor; the synchronous oiling mechanism includes a synchronous moving component and a uniform oiling component. Through the above method, in this invention, the synchronous moving component and the uniform oiling component work together to achieve automatic and uniform application of drawing oil to the surface of the sheet metal, effectively reducing friction between the sheet metal and the die, thereby preventing part misalignment and facilitating part forming; the auxiliary drawing mechanism pushes the portion of the sheet metal located at the edge of the drawing surface towards the stamping part, avoiding damage such as workpiece breakage due to excessive friction, and ensuring the quality of the finished workpiece.

Description

Technical Field

[0001] This invention relates to the field of stamping equipment technology, and specifically to a door sill stamping equipment and method for preventing part misalignment. Background Technology

[0002] Steps are often installed on the sides of car doors to provide foot support when passengers get on and off the vehicle, making it easier for them to get on and off the vehicle and preventing their clothes from getting dirty in the rain or on muddy roads. They play an important role in improving the portability of the vehicle.

[0003] Existing pedals often use one-piece stamping technology, which achieves one-time forming of the pedal through the reasonable design of the stamping machine and mold, and then becomes a qualified finished product after processes such as trimming, grinding and surface treatment.

[0004] Chinese patent CN110653289A discloses an integrated forming device for automatic feeding, stamping and unloading of steel plates. The device works in conjunction with an automatic feeding device, an automatic unloading mechanism and an automatic conveying mechanism to realize the automated stamping process of the plate. However, in the stamping process of the pedal, the plate needs to be drawn to form the shape of the finished part. The plate may be damaged due to excessive friction during the drawing process, and drawing oil often needs to be applied manually before stamping, thereby reducing the processing efficiency.

[0005] Based on this, the present invention designs a door pedal stamping device and method to avoid part misalignment in order to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a door pedal stamping device and method to avoid part misalignment.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A method for stamping a car door sill to avoid part misalignment, comprising a press body and a mounting bracket;

[0009] A lower template is fixedly installed on the lower base of the press body, and an upper template for use with the lower template is fixedly installed at the output end of the press body. An auxiliary drawing mechanism is provided on the lower template.

[0010] A discharge conveyor line is fixedly installed on the left side of the press body, and a feed conveyor line is fixedly installed on the right side of the press body; a synchronous oiling mechanism is provided between the upper template and the feed conveyor line, and an automatic feeding mechanism is provided at the feed end of the feed conveyor line;

[0011] The synchronous oiling mechanism includes a synchronous moving component and a uniform oiling component. The synchronous moving component is installed between the feeding conveyor line and the upper template, and the uniform oiling component is installed on the synchronous moving component.

[0012] Furthermore, the synchronous moving component includes a guide rail, a slider, a connecting rod, a pin, and a reinforcing crossbar. The guide rail is fixedly installed on both the front and rear sides of the feeding conveyor line, and a slider is slidably connected to each guide rail. Two pins are fixedly installed on both the front and rear sides of the upper template. One end of the connecting rod is rotatably connected to the pin, and the other end of the connecting rod is rotatably connected to the slider. A reinforcing crossbar is fixedly installed between the connecting rods on both sides.

[0013] Furthermore, the uniform oiling assembly includes an oil dripping device, an oiling roller, a rotating shaft, and an elastic clamping assembly. The oil dripping device is fixedly installed at the feed end of the feeding conveyor line, and the oil dripping nozzle of the oil dripping device is aligned with the feeding conveyor line. The inner sides of both sets of connecting rods are provided with elastic clamping assemblies, and both ends of the rotating shaft are connected to the connecting rods through the elastic clamping assemblies. An oiling roller is rotatably mounted on the rotating shaft.

[0014] Furthermore, a top block is fixedly installed at one end of the slider near the lower template, and a guide groove is provided on the left side of the lower template.

[0015] Furthermore, the automatic feeding mechanism includes a pusher block, a feeding trough, a pusher cylinder, a feeding bin, a hinge seat, and a lever. The feeding bin is fixedly installed on the mounting frame, and the pusher block is located at the bottom of the feeding bin and is slidably connected to the feeding bin. A feeding trough is provided at one end of the pusher block near the feeding conveyor line. The pusher cylinder is fixedly connected to the mounting frame, and the output end of the pusher cylinder is fixedly connected to the pusher block. The hinge seat is fixedly installed on the side of the feeding bin near the feeding conveyor line. The upper end of the lever is hinged to the hinge seat, and the lower end of the hinge seat is provided with a stop block to prevent the lever from continuing to rotate counterclockwise from the vertical state. Multiple sets of positioning blocks are fixedly installed at equal intervals on the feeding conveyor line.

[0016] Furthermore, the auxiliary drawing mechanism includes side positioning pins, a mounting plate, and auxiliary drawing components. Multiple side positioning pins for positioning the sheet are fixedly installed on the lower template. The mounting plate is inserted into the lower template, and multiple auxiliary drawing components are evenly arranged on the mounting plate along the length of the lower template.

[0017] Furthermore, the auxiliary drawing assembly includes a slant groove, a slant block, a return spring, and anti-slip texture. The slant groove is provided on the mounting plate, the slant block is slidably connected to the slant groove, and a return spring is fixedly installed between the slant block and the slant groove. Anti-slip texture is provided on the top of the slant block.

[0018] Furthermore, the bottom slope of the inclined groove gradually tilts downwards towards the template drawing portion.

[0019] Furthermore, the inclined block can be fully accommodated by the inclined groove, and in its natural state, its top height is higher than the top of the mounting plate.

[0020] To better achieve the objectives of this invention, the present invention also provides a method for a door sill stamping device to avoid part misalignment, comprising the following steps:

[0021] Step 1: Start the push cylinder to push the push block. The push block pushes the sheet material out of the feed bin. During the process of pushing the sheet material out, the lever is pushed open until the sheet material falls into a set of positioning blocks on the feed conveyor line. The lever returns to the vertical position, and the push cylinder drives the push block to reset. The sheet material is stuck by the lever and cannot move. Finally, the push block resets to the feed bin, and the sheet material is carried by the feed conveyor line and positioning blocks towards the press body.

[0022] Step 2: As the sheet metal is conveyed along the feeding conveyor line, it passes under the oil dripping device, which drips drawing oil onto the surface of the sheet metal. When the sheet metal moves to the set position, the press body drives the upper template to move vertically downward. The upper template pushes the slider through the connecting rod, causing the slider to be pushed towards the feeding conveyor line under the limiting action of the guide rail. The connecting rod drives the oiling roller to roll over the surface of the sheet metal, and under the action of the elastic pressing component, the oiling roller is always pressed tightly on the sheet metal, spreading the drawing oil evenly.

[0023] Step 3: After stamping, the upper and lower molds separate. The slider moves away from the feeding conveyor line, causing the oiling roller to roll in the opposite direction on the sheet metal surface, so that the drawing oil is evenly applied again. At the same time, the slider drives the connecting rod to move towards the lower mold, pushing the finished part on the mold to the left. Finally, the finished part slides off the guide chute onto the discharge conveyor line, completing the processing.

[0024] The present invention has the following technical effects:

[0025] In this invention, the automatic application of drawing oil to the sheet metal surface is achieved through the coordinated operation of the synchronous moving component and the uniform oiling component. The application is uniform, effectively reducing friction between the sheet metal and the mold, facilitating metal sliding, and thus preventing part displacement and promoting part forming. The auxiliary drawing mechanism automatically pushes the portion of the sheet metal located at the edge of the drawing surface towards the stamping part, avoiding damage such as workpiece breakage caused by excessive friction, and ensuring the quality of the finished workpiece. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0027] Figure 1 This is a perspective view of a door sill stamping device for preventing part misalignment according to the present invention;

[0028] Figure 2 This is a front view of a door sill stamping device for preventing part misalignment according to the present invention;

[0029] Figure 3 A 3D view of the finished part, the door sill.

[0030] Figure 4 This is a perspective view of the automatic feeding mechanism of the present invention;

[0031] Figure 5 This is a perspective view of the present invention with the main body of the press hidden.

[0032] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0033] Figure 7 This is a perspective view of the auxiliary drawing mechanism of the present invention.

[0034] The labels in the diagram represent:

[0035] 100. Press body; 101. Upper template; 102. Lower template; 110. Feed conveyor; 111. Positioning block; 120. Discharge conveyor; 121. Guide chute; 130. Mounting frame; 140. Top block; 200. Synchronous oiling mechanism; 210. Synchronous moving component; 211. Guide rail; 212. Slider; 213. Connecting rod; 214. Pin; 215. Reinforcing crossbar; 220. Uniform oiling component; 221. Oil dripping device; 222. Oiling roller; 223. Rotating shaft; 224. Slide groove; 225. Movable block; 226. Slide rod; 227. Compression spring; 228. Limit block; 300. Automatic feeding mechanism; 301. Pushing block; 302. Material placement trough; 303. Pushing cylinder; 304. Feeding bin; 305. Hinge seat; 306. Lever; 400. Auxiliary drawing mechanism; 401. Side positioning pin; 402. Mounting plate; 403. Inclined groove; 404. Inclined block; 405. Return spring; 406. Anti-slip texture. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] The present invention will be further described below with reference to embodiments.

[0038] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0039] Example 1

[0040] Please refer to the instruction manual appendix. Figure 1 and 2 A door sill stamping device for preventing part misalignment, comprising a press body 100 and a mounting bracket 130;

[0041] A lower template 102 is fixedly installed on the lower base of the press body 100, and an upper template 101 used in conjunction with the lower template 102 is fixedly installed at the output end of the press body 100. An auxiliary drawing mechanism 400 is provided on the lower template 102.

[0042] A discharge conveyor line 120 is fixedly installed on the left side of the press body 100, and a feed conveyor line 110 is fixedly installed on the right side of the press body 100; a synchronous oiling mechanism 200 is provided between the upper template 101 and the feed conveyor line 110, and an automatic feeding mechanism 300 is provided at the feed end of the feed conveyor line 110.

[0043] The synchronous oiling mechanism 200 includes a synchronous moving component 210 and a uniform oiling component 220. The synchronous moving component 210 is installed between the feeding conveyor line 110 and the upper template 101, and the uniform oiling component 220 is installed on the synchronous moving component 210.

[0044] In this invention, the automatic feeding mechanism 300 releases the sheet metal to be stamped onto the feeding conveyor line 110. The feeding conveyor line 110 drips drawing oil onto the surface of the sheet metal. When the upper die plate 101 and the lower die plate 102 close, the upper die plate 101 drives the synchronous moving component 210 to move. The synchronous moving component 210 drives the uniform oiling component 220 to evenly coat the surface of the sheet metal with drawing oil. Then, the robot arm moves the sheet metal onto the lower die plate 102. The press body 100 drives the upper die plate 101 and the lower die plate 102 to close, realizing the one-time stamping of the pedal. At the same time as the upper die plate 101 and the lower die plate 102 close, the auxiliary drawing machine... The auxiliary drawing mechanism 400 pushes the sheet metal towards the drawing section; after processing, the finished part falls onto the discharge conveyor line 120 and is sent out, completing the continuous stamping production of the door pedal; through the coordinated operation of the synchronous moving component 210 and the uniform oiling component 220, the automatic application of drawing oil to the surface of the sheet metal is realized, and the application is uniform, effectively reducing the friction between the sheet metal and the mold, facilitating the sliding of the metal, thereby preventing part displacement and facilitating part forming; through the auxiliary drawing mechanism 400, the part of the sheet metal located at the edge of the drawing surface is automatically pushed towards the stamping section, avoiding damage such as workpiece breakage caused by excessive friction, and ensuring the finished product quality of the workpiece.

[0045] Example 2

[0046] like Figure 3-7 As shown, in a preferred embodiment of the present invention, the synchronous moving component 210 includes a guide rail 211, a slider 212, a connecting rod 213, a pin 214, and a reinforcing crossbar 215. The guide rail 211 is fixedly installed on the front and rear sides of the feeding conveyor line 110, and a slider 212 is slidably connected to each guide rail 211. Two pins 214 are fixedly installed on the front and rear sides of the upper template 101. One end of the connecting rod 213 is rotatably connected to the pin 214, and the other end of the connecting rod 213 is rotatably connected to the slider 212. A reinforcing crossbar 215 is fixedly installed between the connecting rods 213 on both sides.

[0047] The uniform oiling assembly 220 includes an oil dripping device 221, an oiling roller 222, a rotating shaft 223, and an elastic clamping assembly. The oil dripping device 221 is fixedly installed at the feed end of the feed conveyor line 110, and the oil dripping nozzle of the oil dripping device 221 is aligned with the feed conveyor line 110. The inner sides of the two sets of connecting rods 213 are provided with elastic clamping assemblies. The two ends of the rotating shaft 223 are connected to the connecting rods 213 through the elastic clamping assemblies, and the oiling roller 222 is rotatably mounted on the rotating shaft 223.

[0048] The elastic clamping assembly includes a slide groove 224, a movable block 225, a slide rod 226, and a clamping spring 227. The slide groove 224 is provided on the connecting rod 213. The movable block 225 is slidably connected to the slide groove 224 and is fixedly connected to the rotating shaft 223. The limiting block 228 is fixedly connected to the connecting rod 213. One end of the slide rod 226 is fixedly connected to the movable block 225, and the other end of the slide rod 226 is slidably connected to the limiting block 228. The clamping spring 227 is sleeved on the outside of the slide rod 226, and the two ends of the clamping spring 227 abut against the limiting block 228 and the movable block 225, respectively.

[0049] A top block 140 is fixedly installed at one end of the slider 212 near the lower template 102, and a guide groove 121 is provided on the left side of the lower template 102.

[0050] In this invention, initially, the upper template 101 and the lower template 102 are in a parting state. The sheet metal passes under the oil-drip device 221 during feeding via the feed conveyor line 110, where the oil-drip device 221 drips drawing oil onto the sheet metal surface. When the sheet metal is conveyed to a set position, the press body 100 drives the upper template 101 to move vertically downwards. The upper template 101 pushes the slider 212 via the connecting rod 213, causing the slider 212 to be pushed towards the feed conveyor line 110 under the limiting action of the guide rail 211. The connecting rod 213 drives the oil-applying roller 222 to roll over the sheet metal surface, and the movable block 225... The slide 222 moves under the limiting action of the slide groove 224 and the slide rod 226, and with the cooperation of the compression spring 227, the oiling roller 222 is always pressed tightly on the sheet metal. After the stamping is completed, the upper mold plate 101 and the lower mold plate 102 separate. The slider 212 moves away from the feeding conveyor line 110, so that the oiling roller 222 rolls in the opposite direction on the surface of the sheet metal to evenly apply the drawing oil. At the same time, the slider 212 drives the connecting rod 213 to move towards the lower mold plate 102, pushing the finished part on the mold to the left. Finally, the finished part slides from the guide groove 121 onto the discharge conveyor line 120.

[0051] The automatic feeding mechanism 300 includes a pusher block 301, a feeding trough 302, a pusher cylinder 303, a feeding bin 304, a hinge seat 305, and a lever 306. The feeding bin 304 is fixedly installed on the mounting frame 130. The pusher block 301 is located at the bottom of the feeding bin 304 and is slidably connected to the feeding bin 304. The feeding trough 302 is opened at one end of the pusher block 301 near the feeding conveyor line 110. The pusher cylinder 303 is fixedly connected to the mounting frame 130, and the output end of the pusher cylinder 303 is fixedly connected to the pusher block 301. The hinge seat 305 is fixedly installed on the side of the feeding bin 304 near the feeding conveyor line 110. The upper end of the lever 306 is hinged to the hinge seat 305, and the lower end of the hinge seat 305 is provided with a stop to prevent the lever 306 from continuing to rotate counterclockwise from the vertical state.

[0052] Multiple sets of positioning blocks 111 are fixedly installed at equal intervals on the feeding conveyor line 110.

[0053] In this invention, the push cylinder 303 is activated to push the push block 301, which pushes the sheet material out of the feed bin 304. During the pushing process, the push lever 306 is pushed open until the sheet material falls into the positioning block 111 of the feed conveyor line 110. The push lever 306 returns to the vertical state, and the push cylinder 303 drives the push block 301 to reset. The sheet material is stuck by the push lever 306 and cannot move. Finally, the push block 301 resets to the feed bin 304, and the sheet material is carried by the feed conveyor line 110 and the positioning block 111 to move towards the press body 100, thereby realizing the automatic feeding operation of the sheet material.

[0054] The auxiliary drawing mechanism 400 includes side positioning pins 401, mounting plate 402 and auxiliary drawing components. Multiple side positioning pins 401 for positioning the sheet are fixedly installed on the lower template 102. The mounting plate 402 is inserted into the lower template 102. Multiple auxiliary drawing components are evenly arranged on the mounting plate 402 along the length direction of the lower template 102.

[0055] The auxiliary drawing assembly includes a slant groove 403, a slant block 404, a return spring 405, and anti-slip texture 406. The slant groove 403 is provided on the mounting plate 402. The slant block 404 is slidably connected to the slant groove 403. The return spring 405 is fixedly installed between the slant block 404 and the slant groove 403. The top of the slant block 404 is provided with anti-slip texture 406.

[0056] The bottom slope of the inclined groove 403 gradually slopes downwards in the drawing part of the template 102.

[0057] The inclined block 404 can be fully accommodated by the inclined groove 403, and in its natural state, its top height is higher than the top of the mounting plate 402.

[0058] In this invention, when the upper mold 101 and the lower mold 102 are closed, the upper mold 101 presses down the inclined block 404, causing the inclined block 404 to move in the drawing direction of the lower mold 102 under the limiting action of the inclined groove 403. This pushes the part of the sheet material located at the edge of the stretching surface towards the stamping part, avoiding damage such as workpiece breakage caused by excessive friction, thus ensuring the finished product quality of the workpiece. When the upper mold 101 and the lower mold 102 are fully closed, the inclined block 404 is completely accommodated by the inclined groove 403, which will not affect the forming quality of the part.

[0059] Example 3

[0060] like Figure 1-7 As shown, in a preferred embodiment of the present invention, a method for a door sill stamping device to avoid part misalignment is also provided, comprising the following steps:

[0061] Step 1: Start the push cylinder 303 to push the push block 301. The push block 301 pushes the sheet material out of the feed bin 304. During the process of pushing the sheet material out, push the lever 306 until the sheet material falls into the positioning block 111 of the feed conveyor line 110. The lever 306 returns to the vertical position. The push cylinder 303 drives the push block 301 to reset. The sheet material is stuck by the lever 306 and cannot move. Finally, the push block 301 resets into the feed bin 304. The sheet material is carried by the feed conveyor line 110 and the positioning block 111 towards the press body 100.

[0062] Step 2: As the sheet metal is conveyed by the feeding conveyor line 110, it passes under the oil dripping device 221, which drips drawing oil onto the surface of the sheet metal. When the sheet metal moves to the set position, the press body 100 drives the upper template 101 to move vertically downward. The upper template 101 pushes the slider 212 through the connecting rod 213, so that the slider 212 is pushed towards the feeding conveyor line 110 under the limiting action of the guide rail 211. The connecting rod 213 drives the oiling roller 222 to roll over the surface of the sheet metal, and under the action of the elastic pressing component, the oiling roller 222 is always pressed tightly on the sheet metal, so as to spread the drawing oil evenly.

[0063] Step 3: After stamping, the upper mold plate 101 and the lower mold plate 102 separate. The slider 212 moves away from the feeding conveyor line 110, causing the oiling roller 222 to roll in the opposite direction on the sheet metal surface, so that the drawing oil is evenly applied again. At the same time, the slider 212 drives the connecting rod 213 to move towards the lower mold plate 102, pushing the finished part on the mold to the left. Finally, the finished part slides from the guide groove 121 onto the discharge conveyor line 120, completing the processing.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A door sill stamping device for preventing part misalignment, comprising a press body (100), characterized in that: A lower template (102) is fixedly installed on the lower base of the press body (100), and an upper template (101) for use with the lower template (102) is fixedly installed at the output end of the press body (100). An auxiliary drawing mechanism (400) is provided on the lower template (102). A discharge conveyor line (120) is fixedly installed on the left side of the press body (100), and a feed conveyor line (110) is fixedly installed on the right side of the press body (100); a synchronous oiling mechanism (200) is provided between the upper template (101) and the feed conveyor line (110), and an automatic feeding mechanism (300) is provided at the feed end of the feed conveyor line (110). The synchronous oiling mechanism (200) includes a synchronous moving component (210) and a uniform oiling component (220). The synchronous moving component (210) is installed between the feeding conveyor line (110) and the upper template (101), and the uniform oiling component (220) is installed on the synchronous moving component (210). The auxiliary drawing mechanism (400) includes side positioning pins (401), mounting plate (402) and auxiliary drawing components. Multiple side positioning pins (401) for positioning the sheet are fixedly installed on the lower template (102). The mounting plate (402) is inserted into the lower template (102). Multiple auxiliary drawing components are evenly arranged on the mounting plate (402) along the length direction of the lower template (102). The auxiliary drawing assembly includes a groove (403), a wedge (404), a return spring (405), and anti-slip texture (406). The mounting plate (402) has a groove (403). The bottom of the wedge (404) is slidably connected to the bottom of the groove (403). The return spring (405) is fixedly installed between the wedge (404) and the groove (403). The top of the wedge (404) is provided with anti-slip texture (406). The bottom slope of the inclined groove (403) gradually slopes downward towards the drawing portion of the template (102); The inclined block (404) can be fully accommodated by the inclined groove (403), and its top height is higher than the top of the mounting plate (402) in its natural state.

2. The door sill stamping equipment for avoiding part misalignment according to claim 1, characterized in that, The synchronous moving component (210) includes a guide rail (211), a slider (212), a connecting rod (213), a pin (214), and a reinforcing crossbar (215). The guide rail (211) is fixedly installed on the front and rear sides of the feeding conveyor line (110), and the slider (212) is slidably connected to the guide rail (211). The two pins (214) are fixedly installed on the front and rear sides of the upper template (101). One end of the connecting rod (213) is rotatably connected to the pin (214), and the other end of the connecting rod (213) is rotatably connected to the slider (212). A reinforcing crossbar (215) is fixedly installed between the connecting rods (213) on both sides. The uniform oiling assembly (220) includes an oil dripping device (221), an oiling roller (222), a rotating shaft (223), and an elastic clamping assembly. The oil dripping device (221) is fixedly installed at the feed end of the feed conveyor line (110), and the oil dripping port of the oil dripping device (221) is aligned with the feed conveyor line (110). The inner sides of the two sets of connecting rods (213) are provided with elastic clamping assemblies. The two ends of the rotating shaft (223) are connected to the connecting rods (213) through the elastic clamping assemblies, and the oiling roller (222) is rotatably installed on the rotating shaft (223).

3. The door sill stamping equipment for avoiding part misalignment according to claim 2, characterized in that, A top block (140) is fixedly installed at one end of the slider (212) near the lower template (102), and a guide groove (121) is provided on the left side of the lower template (102).

4. The door sill stamping equipment for avoiding part misalignment according to claim 3, characterized in that, It also includes a mounting frame (130). The automatic feeding mechanism (300) includes a pusher block (301), a feeding trough (302), a pusher cylinder (303), a feeding bin (304), a hinge seat (305), and a lever (306). The feeding bin (304) is fixedly mounted on the mounting frame (130). The pusher block (301) is located at the bottom of the feeding bin (304) and is slidably connected to the feeding bin (304). The end of the pusher block (301) near the feeding conveyor line (110) has a feeding trough (302). The cylinder (303) is fixedly connected to the mounting bracket (130), and the output end of the push cylinder (303) is fixedly connected to the push block (301); the hinge seat (305) is fixedly installed on the side of the feed bin (304) near the feed conveyor line (110), the upper end of the lever (306) is hinged to the hinge seat (305), and the lower end of the hinge seat (305) is provided with a stop block to prevent the lever (306) from rotating counterclockwise from the vertical state; multiple sets of positioning blocks (111) are fixedly installed at equal intervals on the feed conveyor line (110).

5. A method of using the door sill stamping equipment as described in claim 4 to avoid part misalignment, characterized in that, Includes the following steps: Step 1: Start the push cylinder (303) to push the push block (301). The push block (301) pushes the plate out of the feed bin (304). During the process of pushing the plate out, push the lever (306) until the plate falls into a set of positioning blocks (111) on the feed conveyor line (110). The lever (306) returns to the vertical position. The push cylinder (303) drives the push block (301) to reset. The plate is stuck by the lever (306) and cannot move. Finally, the push block (301) resets to the feed bin (304). The plate is carried by the feed conveyor line (110) and the positioning blocks (111) to move towards the press body (100). Step 2: The sheet metal passes under the oil dripping device (221) during the feeding conveyor line (110), and the oil dripping device (221) drips the drawing oil onto the surface of the sheet metal. When the sheet metal moves to the set position, the press body (100) drives the upper template (101) to move vertically downward. The upper template (101) pushes the slider (212) through the connecting rod (213), so that the slider (212) is pushed towards the feeding conveyor line (110) under the limiting action of the guide rail (211). The connecting rod (213) drives the oiling roller (222) to roll over the surface of the sheet metal, and under the action of the elastic pressing component, the oiling roller (222) is always pressed tightly on the sheet metal, so that the drawing oil is evenly applied. Step 3: After stamping, the upper template (101) and lower template (102) are separated. The slider (212) moves away from the feeding conveyor line (110), causing the oiling roller (222) to roll in the opposite direction on the sheet metal surface, so that the drawing oil is evenly applied again. At the same time, the connecting rod (213) drives the slider (212) to move towards the lower template (102), pushing the finished part on the mold to the left. Finally, the finished part slides from the guide groove (121) onto the discharge conveyor line (120), completing the processing.

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