An automatic stamping device for automobile sheet metal parts

Abstract

The present invention belongs to the technical field of automotive parts, and particularly relates to an automatic stamping device for automotive sheet metal parts, which includes a bottom plate. Two support seats are fixedly installed on the bottom plate. A horizontal support plate is fixedly installed on the top of each support seat. A gap allowing the sheet metal parts to enter is reserved between the two support plates. A pressure-bearing mechanism is installed on the support seat, and a bracket is installed on the bottom plate. A pressing mechanism is installed on the bracket at a position corresponding to the gap between the two support plates. After the metal sheet is stamped into a saddle clip in the present invention, only the support plate contacts the lower surface of the saddle clip and plays a supporting role for the saddle clip. During the process of removing the saddle clip from the support plate, neither the upper surface nor the lower surface of the saddle clip is affected by friction, which facilitates the material taking and also avoids the situation of scratching the surface of the saddle clip.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive parts, and particularly relates to an automatic stamping device for automotive sheet metal parts. Background Art

[0002] Sheet metal is a comprehensive cold working process for metal sheets, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, and forming, etc. The products processed by sheet metal technology are called sheet metal parts. Many sheet metal parts are included in automotive parts, such as car doors, suspensions, and vehicle frames, etc. Stamping is a forming processing method that applies external force to materials by a press and a die to make them undergo plastic deformation or separation, so as to obtain workpieces with the required shape and size. Many sheet metal parts of automobiles are manufactured by stamping methods. Among them, the saddle clamp is a common automotive fastener made by stamping method.

[0003] The saddle clamp is made by stamping a long strip of metal sheet. At present, the following problems exist in the stamping process: (1) During the pressing process of the metal sheet, the lower surface of the metal sheet will closely adhere to the bearing surface of the stamping device, and the upper surface of the metal sheet will closely adhere to the pressing surface of the stamping device. This results in a large frictional force between the surface of the stamped saddle clamp and the stamping device during the process of taking down the stamped saddle clamp, which is not only inconvenient for material taking but also causes scratches on the surface of the saddle clamp; (2) During the process of feeding and stamping the metal sheet, the position of the metal sheet is prone to shift, resulting in inaccurate stamping positions of the stamping device on the metal sheet, and reducing the consistency of the formed saddle clamp. Summary of the Invention

[0004] To solve the above technical problems, the present invention adopts the following technical scheme: an automatic stamping device for automotive sheet metal parts, including a bottom plate, on which two support seats are fixedly installed. A horizontal support plate is fixedly installed on the top of each support seat, and a gap is reserved between the two support plates; a bearing mechanism is installed on the support seat. The bearing mechanism includes a first sliding rod horizontally and slidably installed on the surface of the support seat and extending into the support seat. An arc-shaped first bearing plate is fixedly installed at the outer end of the first sliding rod; a second sliding rod extending into the support seat is obliquely slidably installed on the surface of the support seat. A second bearing plate is fixedly installed at the outer end of the second sliding rod; the bottom end face of the second bearing plate is a horizontal plane and cooperates with the top end face of the first bearing plate, and the top end face of the second bearing plate is an inclined plane and cooperates with the end face of the corresponding support plate.

[0005] A bracket is installed on the bottom plate, and a pressing mechanism is installed on the bracket corresponding to the position of the notch between the two support plates. The pressing mechanism includes a hydraulic cylinder vertically and fixedly installed on the bracket. The bottom end of the telescopic section of the hydraulic cylinder is fixedly installed with a lifting seat. On the side wall of the lifting seat facing the support seat, adjusting rods are slidably installed along the sliding direction of the first sliding rod, and the number of adjusting rods is two. The adjusting rods extend into the lifting seat, and the outer ends of the adjusting rods are fixedly installed with arc-shaped first pressing plates. A plurality of connecting rods are vertically and fixedly installed at the bottom of the lifting seat, and the bottom ends of the plurality of connecting rods are jointly fixedly installed with an arc-shaped second pressing plate. The bottom end face of the first pressing plate is a horizontal plane and cooperates with the top end face of the second pressing plate.

[0006] As a preferred technical solution of the present invention, the bottom end faces of the two first bearing plates cooperate with each other. A plurality of insertion blocks are evenly and fixedly installed on the bottom end face of one of the first bearing plates, and a slot cooperating with the insertion blocks is opened on the bottom end face of the other first bearing plate. A bearing seat is fixedly installed on the bottom plate, and the top surface of the bearing seat is tangent to the bottom surfaces of the first bearing plate and the second bearing plate.

[0007] As a preferred technical solution of the present invention, a receiving groove is opened inside the support seat. The inner end of the first sliding rod is horizontally and fixedly installed with a first rack, and the inner end of the second sliding rod is fixedly installed with an inclined second rack. An adjusting motor is fixedly installed on the outer wall of the support seat. The output shaft of the adjusting motor penetrates through the receiving groove, and a missing gear and a sector gear meshing with the first rack are fixedly installed on the output shaft of the adjusting motor. An installation shaft penetrating through the receiving groove is fixedly installed on the support seat, and a reversing gear meshing with both the missing gear and the second rack is rotatably installed on the installation shaft.

[0008] As a preferred technical solution of the present invention, a horizontal first telescopic spring is fixedly connected between the inner wall of the receiving groove and the end face of the first rack, and an inclined second telescopic spring is fixedly connected between the inner wall of the receiving groove and the end face of the second rack.

[0009] As a preferred technical solution of the present invention, through grooves cooperating with the adjusting rods are opened on the lifting seat. A bidirectional elastic telescopic rod located in the through groove is installed between the two adjusting rods. Wedge blocks are fixedly installed on the inner end faces of the adjusting rods, and a cylinder is fixedly installed on the outer wall of the lifting seat. The end of the telescopic section of the cylinder is fixedly installed with a push plate, and the surface of the push plate is in contact with the inclined surface of the wedge block.

[0010] As a preferred technical solution of the present invention, limiting grooves are opened on the inner wall of the through groove, and limiting blocks slidably cooperating with the limiting grooves are fixedly installed on the surface of the adjusting rod.

[0011] As a preferred technical solution of the present invention, an anti-deviation mechanism is installed on the support plate. The anti-deviation mechanism includes two electric sliders slidably installed on the upper surface of the support plate. The electric sliders are strip-shaped, and a number of horizontally arranged rollers parallel to each other are rotatably installed between the two electric sliders; a horizontal deviation-correcting rod is fixedly installed on each electric slider. The deviation-correcting rod is divided into a guiding section and a limiting section; the guiding section of the deviation-correcting rod faces the notch between the two support plates, and the guiding section of the deviation-correcting rod intersects with the sliding direction of the electric slider. A flared opening is formed between the guiding sections of the two deviation-correcting rods, and the limiting section of the deviation-correcting rod is parallel to the sliding direction of the electric slider.

[0012] As a preferred technical solution of the present invention, an ear plate is fixedly installed on the electric slider. A rotating shaft is installed between the two ear plates. An anti-deviation plate is fixedly installed on the rotating shaft. A limiting plate is fixedly installed at one end of the rotating shaft. A return spring is connected between the limiting plate and the corresponding ear plate; a limiting strip arranged along the sliding direction of the electric slider is fixedly installed on the upper surface of the support plate corresponding to the position of the limiting plate. The edge of the limiting plate is in sliding fit with the upper surface of the limiting strip. The upper surface of the limiting strip is stepped, and an arc-shaped groove is opened at the edge of the lower step close to the upper step on the upper surface of the limiting strip.

[0013] As a preferred technical solution of the present invention, a feeding mechanism is installed on the bottom plate. The feeding mechanism includes a feeding frame fixedly installed on the bottom plate. A horizontal material supporting plate is fixedly installed on the feeding frame. The upper surface of the material supporting plate is flush with the upper surface of the support plate; a storage box is vertically fixedly installed on the upper surface of the material supporting plate. A discharge port is opened at the bottom of the side plate of the storage box close to the support plate, and a pushing port is opened at the bottom of the side plate of the storage box away from the support plate; a horizontal pushing telescopic rod is fixedly installed on the upper surface of the material supporting plate, and the pushing telescopic rod is electrically controlled.

[0014] As a preferred technical solution of the present invention, two square grooves are symmetrically opened on the inner upper part of the storage box. A D-shaped guide groove is opened on the side wall of the square groove. A lifting block is slidably installed in the square groove through the guide groove. The lifting block is electrically controlled. Rubber sheets are fixedly installed on the opposite surfaces of the two lifting blocks.

[0015] The present invention has at least the following beneficial effects: (1) After the metal sheet is punched into a riding card, the two first pressure plates in the pressure mechanism first move away from each other in the horizontal direction and separate from the lower surface of the riding card, and then the two second pressure plates move away from each other in the oblique direction and separate from the lower surface of the riding card, so that only the support plate is left in contact with the lower surface of the riding card and supports the riding card; then, the two first pressure plates in the pressure mechanism move toward each other in the horizontal direction and separate from the upper surface of the riding card, and as the lifting seat in the pressure mechanism rises and resets, the second pressure plates are also separated from the upper surface of the riding card synchronously; in the process of removing the riding card from the support plate, the upper and lower surfaces of the riding card will not be affected by friction, which facilitates material removal and avoids scratches on the surface of the riding card.

[0016] (2) After the present invention uses the feeding mechanism to feed a single metal sheet to the support plate, the anti-deflection mechanism on the support plate adjusts the position of the metal sheet, and uses the correction rods in the anti-deflection mechanism to correct the long sides of the metal sheet, and uses the anti-deflection plates in the anti-deflection mechanism to correct the short sides of the metal sheet at both ends, thereby ensuring that the metal sheet is in a predetermined and accurate position before stamping, and ensuring the consistency of the saddle card after forming; during the stamping process, the horizontal roller is in contact with the upper surface of the metal sheet and limits the metal sheet, thereby avoiding the metal sheet from being offset due to the upward warping of the two ends, and further ensuring the consistency of the saddle card after forming.

[0017] (3) In the process of the present invention sending a single metal sheet to the support plate through the feeding mechanism, the lifting block in the storage box clamps and lifts the metal sheet in the storage box, thereby avoiding the friction between the upper surface of the bottom metal sheet and the metal sheet above it, and further ensuring the surface quality of the riding card. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the first three-dimensional structure of the automatic stamping device for automobile sheet metal parts in an embodiment of the present invention.

[0020] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0021] Figure 3 for Figure 1 A magnified schematic diagram of point B in the middle.

[0022] Figure 4 for Figure 1 Enlarged schematic diagram of point C in the middle.

[0023] Figure 5 It is a second three-dimensional structural schematic diagram of the automatic stamping device for automobile sheet metal parts in an embodiment of the present invention.

[0024] Figure 6 This is the front view of the automatic stamping device for automotive sheet metal parts in the embodiment of the present invention.

[0025] Figure 7 This is the schematic internal structure diagram of the support seat in the embodiment of the present invention.

[0026] Figure 8 This is a partial front cross-sectional view of the first bearing plate in the embodiment of the present invention.

[0027] Figure 9 This is the partial top view of the internal structure of the lifting seat in the embodiment of the present invention.

[0028] Figure 10 This is the partial side view of the internal structure of the storage box in the embodiment of the present invention.

[0029] Figure 11 This is the schematic structure diagram of the automotive sheet metal part in the embodiment of the present invention.

[0030] In the figure: 1, bottom plate; 2, support seat; 201, accommodation groove; 3, support plate; 4, bearing mechanism; 401, first sliding rod; 402, first bearing plate; 403, second sliding rod; 404, second bearing plate; 405, insertion block; 406, insertion slot; 407, first rack; 408, second rack; 409, adjustment motor; 410, missing gear; 411, sector gear; 412, mounting shaft; 413, reversing gear; 414, first telescopic spring; 415, second telescopic spring; 5, bracket; 6, pressing mechanism; 601, hydraulic cylinder; 602, lifting seat; 603, adjusting rod; 604, first pressing plate; 605, connecting rod; 606, second pressing plate; 607, through groove; 608, bidirectional elastic telescopic rod; 609, wedge block; 610, air cylinder; 611, pushing plate; 612, limiting groove; 613, limiting block; 7, bearing seat; 8, anti-deviation mechanism; 801, electric slider; 802, horizontal roller; 803, deviation-correcting rod; 804, ear plate; 805, rotating shaft; 806, anti-deviation plate; 807, limiting plate; 808, return spring; 809, limiting strip; 810, arc groove; 9, feeding mechanism; 901, supporting plate; 902, storage box; 903, discharge port; 904, pushing port; 905, pushing telescopic rod; 906, square groove; 907, guide groove; 908, lifting block; 909, rubber sheet. Detailed implementation manners

[0031] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention can be implemented in many different ways defined and covered by the claims.

[0032] As Figure 1As shown in the figure, this embodiment provides an automatic stamping device for automobile sheet metal parts, which stamps a metal sheet to obtain an automobile sheet metal part as shown in Figure 11 As shown. The automatic stamping device for automobile sheet metal parts includes a bottom plate 1, on which two support seats 2 are fixedly installed. A horizontal support plate 3 is fixedly installed on the top of each support seat 2, and a notch is reserved between the two support plates 3.

[0033] As Figure 6 、 Figure 7 and Figure 8 As shown, a pressure-bearing mechanism 4 is installed on the support seat 2. The pressure-bearing mechanism 4 includes a first sliding rod 401 horizontally slidably installed on the surface of the support seat 2 and extending into the support seat 2. An arc-shaped first bearing plate 402 is fixedly installed at the outer end of the first sliding rod 401; a second sliding rod 403 extending into the support seat 2 is slidably installed obliquely on the surface of the support seat 2. A second bearing plate 404 is fixedly installed at the outer end of the second sliding rod 403; the bottom end face of the second bearing plate 404 is a horizontal plane and cooperates with the top end face of the first bearing plate 402, and the top end face of the second bearing plate 404 is an inclined plane and cooperates with the end face of the corresponding support plate 3; the bottom end faces of the two first bearing plates 402 cooperate with each other. A plurality of insertion blocks 405 are evenly fixedly installed on the bottom end face of one first bearing plate 402, and a slot 406 cooperating with the insertion blocks 405 is opened on the bottom end face of the other first bearing plate 402; through the cooperation of the insertion blocks 405 and the slots 406, the surfaces of the two first bearing plates 402 are ensured to be flush, and further the surface flatness of the saddle clip is ensured; a pressure-bearing seat 7 is fixedly installed on the bottom plate 1, and the top surface of the pressure-bearing seat 7 is tangent to the bottom surfaces of the first bearing plate 402 and the second bearing plate 404; the two first bearing plates 402 are supported by the pressure-bearing seat 7, further ensuring that the surfaces of the two first bearing plates 402 are flush; a receiving groove 201 is opened inside the support seat 2. A first rack 407 is horizontally fixedly installed at the inner end of the first sliding rod 401, and an inclined second rack 408 is fixedly installed at the inner end of the second sliding rod 403; an adjusting motor 409 is fixedly installed on the outer wall of the support seat 2. The output shaft of the adjusting motor 409 penetrates the receiving groove 201, and a missing gear 410 and a sector gear 411 meshing with the first rack 407 are fixedly installed on the output shaft of the adjusting motor 409; an installation shaft 412 penetrating the receiving groove 201 is fixedly installed on the support seat 2, and a reversing gear 413 meshing with both the missing gear 411 and the second rack 408 is rotatably installed on the installation shaft 412; a horizontal first telescopic spring 414 is fixedly connected between the inner wall of the receiving groove 201 and the end face of the first rack 407, and an inclined second telescopic spring 415 is fixedly connected between the inner wall of the receiving groove 201 and the end face of the second rack 408.

[0034] During the compression process of the metal sheets on the two support plates 3, deformation occurs until the lower surface of the metal sheets is in close contact with the upper surfaces of the first bearing plate 402 and the second bearing plate 404. At this time, if the saddle clip is directly removed, a large frictional force will be generated between the saddle clip and the first bearing plate 402 and the second bearing plate 404. In this embodiment, the adjustment motor 409 is driven to drive the missing gear 410 and the sector gear 411 to rotate synchronously. The sector gear 411 first meshes with the first rack 407 and drives the first rack 407 to move horizontally. The first rack 407 drives the first sliding rod 401 and the first bearing plate 402 to move horizontally, and the first bearing plate 402 is separated from the saddle clip. Then, the missing gear 410 meshes with the reversing gear 413 and drives the reversing gear 413 to rotate. The reversing gear 413 drives the second rack 408 to move obliquely downward. The second rack 408 drives the second sliding rod 403 and the second bearing plate 404 to move obliquely downward, and the second bearing plate 404 is separated from the saddle clip. At this time, only the support plate 3 is in contact with the lower surface of the saddle clip, and there is no large frictional force between the support plate 3 and the saddle clip. Therefore, the surface of the saddle clip will not be damaged during the process of removing the saddle clip. After the saddle clip is removed, the adjustment motor 409 is driven to drive the missing gear 410 and the sector gear 411 to rotate in the reverse direction, and the first bearing plate 402 and the second bearing plate 404 are reset. It should be noted that the first telescopic spring 414 and the second telescopic spring 415 respectively play a role in supporting and positioning the first rack 407 and the second rack 408, preventing the first bearing plate 402 and the second bearing plate 404 from shifting during the pressure-bearing process, and further ensuring the forming quality of the saddle clip.

[0035] Such as Figure 2 , Figure 6 and Figure 9As shown in the figure, a bracket 5 is installed on the bottom plate 1, and a pressing mechanism 6 is installed on the bracket 5 corresponding to the position of the notch between the two support plates 3. The pressing mechanism 6 includes a hydraulic cylinder 601 vertically and fixedly installed on the bracket. The bottom end of the telescopic section of the hydraulic cylinder 601 is fixedly installed with a lifting seat 602. On the side wall of the lifting seat 602 facing the support seat 2, adjusting rods 603 are slidably installed along the sliding direction of the first sliding rod 401, and the number of the adjusting rods 603 is two. The adjusting rods 603 extend into the lifting seat 602, and the outer ends of the adjusting rods 603 are fixedly installed with arc-shaped first pressing plates 604. A plurality of connecting rods 605 are vertically and fixedly installed at the bottom of the lifting seat 602, and the bottom ends of the plurality of connecting rods 605 are jointly fixedly installed with an arc-shaped second pressing plate 606. The bottom end face of the first pressing plate 604 is a horizontal plane and is matched with the top end face of the second pressing plate 606. A through groove 607 matched with the adjusting rod 603 is opened on the lifting seat 602. A bi-directional elastic telescopic rod 608 located in the through groove 607 is installed between the two adjusting rods 603. A wedge-shaped block 609 is fixedly installed on the inner end face of the adjusting rod 603. A cylinder 610 is fixedly installed on the outer wall of the lifting seat 602. The end of the telescopic section of the cylinder 610 is fixedly installed with a push plate 611, and the surface of the push plate 611 is attached to the inclined surface of the wedge-shaped block 609. A limiting groove 612 is opened on the inner wall of the through groove 607, and a limiting block 613 slidably matched with the limiting groove 612 is fixedly installed on the surface of the adjusting rod 603.

[0036] The hydraulic cylinder 601 drives the lifting seat 602, the adjusting rod 603, the first pressing plate 604, the connecting rod 605 and the second pressing plate 606 to descend synchronously. The first pressing plate 604 and the second pressing plate 606 stamp the metal sheet on the support plate 3. During this process, the push plate 611 always supports the wedge block 609, thereby supporting the adjusting rod 603 and the first pressing plate 604 to ensure that the lower surface of the first pressing plate 604 is flush with the lower surface of the second pressing plate 606. It should be noted that during the above process, the limiting block 613 always fits with the end of the limiting groove 612, further ensuring that the lower surface of the first pressing plate 604 is flush with the lower surface of the second pressing plate 606. After the metal sheet is deformed into the shape of a saddle clip under the pressure of the first pressing plate 604 and the second pressing plate 606, in this state, both the first pressing plate 604 and the second pressing plate 606 are in contact with the upper surface of the saddle clip. Before removing the saddle clip, the hydraulic cylinder 601 first drives the lifting seat 602, the adjusting rod 603, the first pressing plate 604, the connecting rod 605 and the second pressing plate 606 to rise synchronously. During this process, the air cylinder 610 contracts to drive the push plate 611 to move. Since the bi-directional elastic telescopic rod 608 always exerts a pulling force on the adjusting rod 603, the adjusting rod 603 and the wedge block 609 will move inward along the through groove 607 towards the inside of the through groove 607. The first pressing plate 604 moves horizontally and separates from the upper surface of the saddle clip. In this state, both the first pressing plate 604 and the second pressing plate 606 are separated from the upper surface of the saddle clip. During the process of removing the saddle clip, the upper surface of the saddle clip will not be subject to friction, which facilitates the material taking and avoids damage to the surface of the saddle clip.

[0037] Such as Figure 1 , Figure 3 and Figure 4As shown, an anti-deviation mechanism 8 is installed on the support plate 3. The anti-deviation mechanism 8 includes two electric sliders 801 slidably installed on the upper surface of the support plate 3. The electric sliders 801 are strip-shaped, and a number of horizontally arranged rollers 802 parallel to each other are rotatably installed between the two electric sliders 801; a horizontal deviation correction rod 803 is fixedly installed on each electric slider 801. The deviation correction rod 803 is divided into a guiding section and a limiting section; the guiding section of the deviation correction rod 803 faces the notch between the two support plates 3, and the guiding section of the deviation correction rod 803 intersects with the sliding direction of the electric slider 801. A trumpet-shaped opening is formed between the guiding sections of the two deviation correction rods 803. The limiting section of the deviation correction rod 803 is parallel to the sliding direction of the electric slider 801; an ear plate 804 is fixedly installed on the electric slider 801. A rotating shaft 805 is installed between the two ear plates 804. An anti-deviation plate 806 is fixedly installed on the rotating shaft 805. The initial state of the anti-deviation plate 806 is a vertical state. A limiting plate 807 is fixedly installed at one end of the rotating shaft 805. A return spring 808 is connected between the limiting plate 807 and the corresponding ear plate 804; a limiting strip 809 arranged along the sliding direction of the electric slider 801 is fixedly installed on the upper surface of the support plate 3 at a position corresponding to the limiting plate 807. The edge of the limiting plate 807 is in sliding fit with the upper surface of the limiting strip 809. The upper surface of the limiting strip 809 is stepped, and an arc-shaped groove 810 is opened at the edge of the lower step close to the upper step on the upper surface of the limiting strip 809.

[0038] Before stamping the metal sheet, first adjust the position of the metal sheet through the anti-deviation mechanism 8 so that the metal sheet is in the established stamping position; drive the horizontal roller 802 and the deviation correction rod 803 to move towards the end of the metal sheet through the electric slider 801. The guiding section of the deviation correction rod 803 first contacts the edge of the metal sheet. A total of four deviation correction rods 803 in the two anti-deviation mechanisms 8 jointly adjust the position of the long side of the metal sheet so that the long side of the metal sheet is flush with the limiting section of the deviation correction rod 803; Subsequently, the horizontal roller 802 contacts the upper surface of the metal sheet to limit the metal sheet and prevent the end of the metal sheet from warping; Finally, the anti-deviation plate 806 in the vertical state contacts the short side of the metal sheet, and the position of the metal sheet is adjusted through the anti-deviation plates 806 in the two anti-deviation mechanisms 8; It should be noted that during the above process, the edge of the limiting plate 807 always fits on the upper surface of the limiting strip 809. The limiting effect of the limiting strip 809 on the limiting plate 807 ensures that the limiting plate 807, the rotating shaft 805, and the anti-deviation plate 806 will not rotate, thus avoiding the situation where the anti-deviation plate 806 rotates when the metal sheet contacts the anti-deviation plate 806 and ensuring the adjustment effect of the anti-deviation plate 806 on the metal sheet; Since the horizontal roller 802 needs to always fit on the upper surface of the metal sheet during stamping, the electric slider 801 needs to drive the horizontal roller 802 and the deviation correction rod 803 to continue moving until they reach the established working position. During this process, the limiting plate 807 contacts the stepped position on the upper surface of the limiting strip 809, and the limiting strip 809 pushes the limiting plate 807 to flip, and the return spring 808 deforms. The purpose of setting the arc-shaped groove 810 is to enable the limiting plate 807 to flip smoothly. After flipping, the limiting plate 807 still fits on the upper surface of the limiting strip 809 and continues to slide; After stamping, the anti-deviation mechanism 8 first resets. During the reset process of the anti-deviation mechanism 8, the return spring 808 drives the limiting plate 807 to flip and reset synchronously.

[0039] As Figure 5 and Figure 10 shown, a feeding mechanism 9 is installed on the bottom plate 1. The feeding mechanism 9 includes a feeding frame fixedly installed on the bottom plate 1. A horizontal supporting plate 901 is fixedly installed on the feeding frame, and the upper surface of the supporting plate 901 is flush with the upper surface of the supporting plate 3; A vertical storage box 902 is fixedly installed on the upper surface of the supporting plate 901. An outlet 903 is opened at the bottom of the side plate of the storage box 902 close to the supporting plate 3, and a pushing port 904 is opened at the bottom of the side plate of the storage box 902 far from the supporting plate 3; A horizontal pushing telescopic rod 905 is fixedly installed on the upper surface of the supporting plate 901, and the pushing telescopic rod 905 is electrically controlled; Two square grooves 906 are symmetrically opened inside the storage box 902. A D-shaped guide groove 907 is opened on the side wall of the square groove 906. A lifting block 908 is slidably installed in the square groove 906 through the guide groove 907. The lifting block 908 is electrically controlled, and rubber sheets 909 are fixedly installed on the opposite surfaces of the two lifting blocks 908.

[0040] In the initial state, multiple metal sheets are stacked and stored in the storage bin 902. The metal sheet at the lowermost layer is in contact with the upper surface of the material supporting plate 901. During the feeding process, the metal sheet at the lowermost layer is pushed horizontally through the pushing telescopic rod 905 via the pushing port 904. The metal sheet at the lowermost layer is moved out of the storage bin 902 through the discharging port 903 and moved onto the supporting plate 3. The two supporting plates 3 jointly support the metal sheet. During the above process, the lifting block 908 always drives the rubber sheet 909 to move along the guide groove 907. The rubber sheet 909 first clamps the metal sheets above the lowermost metal sheet and then drives the upper metal sheets to rise, thereby avoiding the generation of frictional force between the lowermost metal sheet and the upper metal sheets during the horizontal movement of the lowermost metal sheet. After the lowermost metal sheet leaves the storage bin 902 and the pushing telescopic rod 905 resets, the rubber sheet 909 separates from the metal sheet, and the metal sheet falls onto the upper surface of the material supporting plate 901 under the action of gravity.

[0041] The working process of the automatic stamping device for automotive sheet metal parts in this embodiment is as follows: First, the pushing telescopic rod 905 in the feeding mechanism 9 pushes a single metal sheet onto the two supporting plates 3, and the supporting plates 3 support the metal sheet. After the pushing telescopic rod 905 resets, the deviation rectifying rod 803 in the deviation prevention mechanism 8 adjusts the long side of the metal sheet, and the deviation prevention plate 806 adjusts the short side of the metal sheet, so that the metal sheet is in the established stamping position. Then, the hydraulic cylinder 601 in the pressure applying mechanism 6 drives the lifting seat 602, the adjusting rod 603, the first pressing plate 604, the connecting rod 605, and the second pressing plate 606 to descend synchronously. The first pressing plate 604 and the second pressing plate 606 stamp the metal sheet on the supporting plate 3 until the lower surface of the metal sheet is in close contact with the upper surfaces of the first bearing plate 402 and the second bearing plate 404 in the bearing mechanism 4.

[0042] In the unloading stage, first, the deviation prevention mechanism 8 resets. Then, the first bearing plate 402 and the second bearing plate 404 separate from the saddle clip. Next, the hydraulic cylinder 601 in the pressure applying mechanism 6 drives the lifting seat 602, the adjusting rod 603, the first pressing plate 604, the connecting rod 605, and the second pressing plate 606 to rise synchronously. The first pressing plate 604 and the second pressing plate 606 separate from the saddle clip. The pushing telescopic rod 905 in the feeding mechanism 9 pushes a single metal sheet onto the two supporting plates 3 again. After the metal sheet contacts the saddle clip, the saddle clip is pushed away from the supporting plate 3. Finally, the first bearing plate 402 and the second bearing plate 404 reset, and the first pressing plate 604 and the second pressing plate 606 reset.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic stamping device for automobile sheet metal parts, comprising a bottom plate (1), on which two support seats (2) are fixedly installed. On the top of each support seat (2), a horizontal support plate (3) is fixedly installed, and a notch is reserved between the two support plates (3). Characterized in that: A pressure-bearing mechanism (4) is installed on the support seat (2). The pressure-bearing mechanism (4) includes a first sliding rod (401) horizontally slidably installed on the surface of the support seat (2) and extending into the support seat (2). An arc-shaped first pressure-bearing plate (402) is fixedly installed at the outer end of the first sliding rod (401). A second sliding rod (403) is slidably installed obliquely on the surface of the support seat (2) and extends into the support seat (2). A second pressure-bearing plate (404) is fixedly installed at the outer end of the second sliding rod (403). The bottom end face of the second pressure-bearing plate (404) is a horizontal plane and cooperates with the top end face of the first pressure-bearing plate (402). The top end face of the second pressure-bearing plate (404) is an inclined plane and cooperates with the end face of the corresponding support plate (3). A bracket (5) is installed on the bottom plate (1). A pressing mechanism (6) is installed on the bracket (5) at the position corresponding to the notch between the two support plates (3). The pressing mechanism (6) includes a hydraulic cylinder (601) vertically and fixedly installed on the bracket. The bottom end of the telescopic section of the hydraulic cylinder (601) is fixedly installed with a lifting seat (602). On the side wall of the lifting seat (602) facing the support seat (2), adjusting rods (603) are slidably installed along the sliding direction of the first sliding rod (401), and the number of the adjusting rods (603) is two. The adjusting rod (603) extends into the lifting seat (602), and an arc-shaped first pressing plate (604) is fixedly installed at the outer end of the adjusting rod (603). A plurality of connecting rods (605) are vertically and fixedly installed at the bottom of the lifting seat (602), and an arc-shaped second pressing plate (606) is fixedly installed at the bottom ends of the plurality of connecting rods (605) together. The bottom end face of the first pressing plate (604) is a horizontal plane and cooperates with the top end face of the second pressing plate (606). An accommodating groove (201) is opened inside the support seat (2). A first rack (407) is horizontally and fixedly installed at the inner end of the first sliding rod (401). An inclined second rack (408) is fixedly installed at the inner end of the second sliding rod (403). An adjusting motor (409) is fixedly installed on the outer wall of the support seat (2). The output shaft of the adjusting motor (409) penetrates through the accommodating groove (201). A defective gear (410) and a sector gear (411) meshing with the first rack (407) are fixedly installed on the output shaft of the adjusting motor (409). An installation shaft (412) penetrating through the accommodating groove (201) is fixedly installed on the support seat (2). A reversing gear (413) meshing with both the defective gear (411) and the second rack (408) is rotatably installed on the installation shaft (412). A horizontal first telescopic spring (414) is fixedly connected between the inner wall of the receiving groove (201) and the end face of the first rack (407), and an inclined second telescopic spring (415) is fixedly connected between the inner wall of the receiving groove (201) and the end face of the second rack (408).

2. The automatic stamping device for automobile sheet metal parts according to claim 1, characterized in that: The bottom end faces of the two first bearing plates (402) cooperate with each other. A plurality of insertion blocks (405) are uniformly and fixedly installed on the bottom end face of one of the first bearing plates (402), and a slot (406) matching the insertion blocks (405) is formed on the bottom end face of the other first bearing plate (402); A bearing seat (7) is fixedly installed on the bottom plate (1), and the top surface of the bearing seat (7) is tangent to the bottom surfaces of the first bearing plate (402) and the second bearing plate (404).

3. The automatic stamping device for automobile sheet metal parts according to claim 1, characterized in that: A through groove (607) matching the adjusting rod (603) is formed on the lifting seat (602). A bidirectional elastic telescopic rod (608) located in the through groove (607) is installed between the two adjusting rods (603). A wedge block (609) is fixedly installed on the inner end face of the adjusting rod (603). A cylinder (610) is fixedly installed on the outer wall of the lifting seat (602), and a push plate (611) is fixedly installed at the end of the telescopic section of the cylinder (610). The surface of the push plate (611) is attached to the inclined surface of the wedge block (609).

4. The automatic stamping device for automobile sheet metal parts according to claim 3, characterized in that: A limiting groove (612) is formed on the inner wall of the through groove (607), and a limiting block (613) slidably matched with the limiting groove (612) is fixedly installed on the surface of the adjusting rod (603).

5. The automatic stamping device for automobile sheet metal parts according to claim 1, characterized in that: An anti-deviation mechanism (8) is installed on the support plate (3). The anti-deviation mechanism (8) includes two electric sliders (801) slidably installed on the upper surface of the support plate (3). The electric sliders (801) are strip-shaped, and a plurality of mutually parallel horizontal rollers (802) are rotatably installed between the two electric sliders (801); A horizontal deviation correction rod (803) is fixedly installed on each electric slider (801). The deviation correction rod (803) is divided into a guiding section and a limiting section; The guiding section of the deviation correction rod (803) faces the gap between the two support plates (3), and the guiding section of the deviation correction rod (803) intersects with the sliding direction of the electric slider (801). A trumpet-shaped opening is formed between the guiding sections of the two deviation correction rods (803), and the limiting section of the deviation correction rod (803) is parallel to the sliding direction of the electric slider (801).

6. The automatic stamping device for automobile sheet metal parts according to claim 5, characterized in that: An ear plate (804) is fixedly installed on the electric slider (801). A rotating shaft (805) is installed between the two ear plates (804). An anti-deviation plate (806) is fixedly installed on the rotating shaft (805). A limiting plate (807) is fixedly installed at one end of the rotating shaft (805). A return spring (808) is connected between the limiting plate (807) and the corresponding ear plate (804). At the position corresponding to the limiting plate (807) on the upper surface of the support plate (3), a limiting strip (809) arranged along the sliding direction of the electric slider (801) is fixedly installed. The edge of the limiting plate (807) is in sliding fit with the upper surface of the limiting strip (809). The upper surface of the limiting strip (809) is stepped, and an arc-shaped groove (810) is opened at the edge of the lower step close to the upper step on the upper surface of the limiting strip (809).

7. The automatic stamping device for automotive sheet metal parts according to claim 1, characterized in that: A feeding mechanism (9) is installed on the bottom plate (1). The feeding mechanism (9) includes a feeding frame fixedly installed on the bottom plate (1). A horizontal material supporting plate (901) is fixedly installed on the feeding frame. The upper surface of the material supporting plate (901) is flush with the upper surface of the support plate (3). A storage box (902) is vertically fixedly installed on the upper surface of the material supporting plate (901). A discharge port (903) is opened at the bottom of the side plate of the storage box (902) close to the support plate (3). A pushing port (904) is opened at the bottom of the side plate of the storage box (902) away from the support plate (3). A horizontal pushing telescopic rod (905) is fixedly installed on the upper surface of the material supporting plate (901). The pushing telescopic rod (905) is electrically controlled.

8. The automatic stamping device for automotive sheet metal parts according to claim 7, characterized in that: Two square grooves (906) are symmetrically opened on the inner upper part of the storage box (902). D-shaped guide grooves (907) are opened on the side walls of the square grooves (906). Lifting blocks (908) are slidably installed in the square grooves (906) through the guide grooves (907). The lifting blocks (908) are electrically controlled. Rubber sheets (909) are fixedly installed on the opposite surfaces of the two lifting blocks (908).

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