Punch forming device for wheelchair bearing plate

Abstract

The invention relates to the technical field of stamping, in particular to a punch forming device for wheelchair bearing plates, which comprises a processing table, a top plate is mounted at the top of the processing table through a connecting column, a punch forming mechanism is arranged between the processing table and the top plate, and a cleaning mechanism is arranged above the processing table and comprises a moving frame. Two first sliding grooves are formed in the inner walls of the two sides of the machining table correspondingly, the moving frame can slide back and forth in the first sliding grooves through first electric sliding blocks, a cleaning block is installed in the moving frame, the box is installed on the machining table close to the moving frame, and a driving mechanism is installed at the end, away from the punch forming mechanism, of the machining table. According to the stamping forming device, through the arranged cleaning mechanism, before a metal sheet is placed in the stamping forming mechanism for stamping forming, dust or sundries on the upper side and the lower side of the metal sheet can be cleaned away when the metal sheet passes through the position between two cleaning blocks, the smoothness of the surface of a part after stamping forming is improved, and meanwhile the yield of the part is indirectly improved.

Description

Technical Field

[0001] The present invention relates to a stamping device, specifically to a stamping device for a load-bearing plate of a wheelchair, and belongs to the technical field of stamping. Background Art

[0002] In order to enable patients to operate more independently and have higher stability and safety, most of the seating positions of many electric wheelchairs adopt metal plates with better load-bearing capacity, and corresponding protective layers are coated on the outside of the plates to prevent the seating plate from deforming or being damaged due to the patient's uncoordinated body control during use, resulting in the patient suddenly sitting on the seating plate and causing the seating plate to be stressed.

[0003] In order to form the metal plate into a seating plate of the required shape, a common stamping device (stamping machine) is used to stamp and form the metal plate. During the process of stamping and forming the metal sheet by the stamping machine, since there will be a small amount of dust or other debris on the surface of some metal sheets after cutting, after the stamping machine stamps and forms the metal sheet with a small amount of dust or other debris on the surface, the dust or debris on the surface of the metal sheet will adhere to the inner wall of the stamping die, thereby reducing the stamping accuracy of other metal sheets in the future; and it will also have a certain impact on the smoothness of the surface of the stamped and formed parts, resulting in a reduction in the finished product rate of the parts. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a stamping device for a load-bearing plate of a wheelchair.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A stamping device for a load-bearing plate of a wheelchair, including a processing table. The top of the processing table is installed with a top plate through a connecting column. There is a stamping and forming mechanism between the processing table and the top plate. A cleaning mechanism for cleaning the metal sheet is provided above the processing table near the stamping and forming mechanism. The cleaning mechanism includes a moving frame. Two first chutes are respectively opened on the inner walls of the two opposite sides of the processing table. The moving frame can slide back and forth in the first chutes through the first electric sliders installed on the outer walls of both sides. Two cooperating cleaning blocks are installed inside the moving frame. A box body is installed on the processing table near the moving frame. A driving mechanism for driving the movement of the metal plate is installed at one end of the processing table away from the stamping and forming mechanism.

[0006] Optionally, two mounting blocks are provided on the inner walls of the two opposite sides inside the moving frame. Second chutes are opened on the outer walls of the opposite sides of the plurality of mounting blocks. Two mounting plates are provided between two of the mounting blocks. Absorbent cotton is installed on the outer walls of the two mounting plates close to each other. Both ends of the two mounting plates and the two cleaning blocks can move up and down in the second chutes through second electric sliders.

[0007] Optionally, third sliding grooves are formed in the inner walls of the opposite sides inside the moving frame, and the mounting blocks at both ends of the two cleaning blocks can move back and forth in the third sliding grooves.

[0008] Optionally, connection ends for communicating with an external oil delivery mechanism are installed on the outer walls of the opposite sides of the two mounting plates. A limiting plate is hinged to the bottom of one of the mounting plates, a diversion groove is formed in the bottom of the limiting plate, and a convex block abutted against the limiting plate is installed at the bottom of one of the cleaning blocks.

[0009] Optionally, the stamping and forming mechanism includes a cylinder installed at the bottom of the top plate. The extending end of the cylinder is installed with an upper die. A plurality of guide rods are installed on the top of the upper die. The top ends of the plurality of guide rods all penetrate through the top plate. A lower die is installed directly below the upper die on the top of the processing table. A groove is formed inside the lower die, and a collection box is inserted inside the groove.

[0010] Optionally, circular grooves communicating with the groove are formed at the four corner positions of the lower die. A circular rod is slidably arranged inside each of the plurality of circular grooves. The top ends of the plurality of circular rods are jointly connected with a top frame. Filter meshes are installed on the inner top surfaces of the groove close to the plurality of circular grooves. The bottom ends of the plurality of circular rods are all connected with the filter meshes through connecting springs. Two connection grooves are symmetrically formed on the top of the lower die, and the two ends of each connection groove are respectively communicated with the two circular grooves.

[0011] Optionally, the limiting mechanism includes two rotating shafts arranged on the outer walls of the opposite sides of the top frame. Telescopic L-shaped rotating plates are installed on the outer walls of both ends of the two rotating shafts. Receiving grooves are formed on the outer walls of the top frame close to the plurality of L-shaped rotating plates. One ends of the plurality of L-shaped rotating plates close to the top frame can be received in the receiving grooves, and support plates are rotatably installed at the ends of the plurality of L-shaped rotating plates far from the top frame.

[0012] Optionally, third electric sliders are installed on the outer walls of the opposite sides of the box body. The two third electric sliders can slide back and forth in the first sliding groove. A first electric telescopic rod is installed on the inner bottom surface of the box body, and a push plate is installed at the extending end of the first electric telescopic rod.

[0013] Optionally, the driving mechanism includes a moving plate arranged between the two first sliding grooves. The moving plate slides in the first sliding groove through fourth electric sliders arranged at both ends. A rotating block is rotatably installed on the top of the moving plate, and a second electric telescopic rod is installed on the outer wall of the rotating block far from the moving plate.

[0014] Optionally, a fixing plate is installed at the extending end of the second electric telescopic rod, and a plurality of suction cups are installed at the bottom of the fixing plate.

[0015] The beneficial effects of the present invention are: 1. In this invention, through the cleaning mechanism provided, before the metal sheet is placed in the stamping and forming mechanism for stamping and forming, when the metal sheet passes between the two cleaning blocks, dust or other sundries on its upper and lower sides can be cleaned, avoiding the attachment of dust or other sundries on the surfaces of the upper die and the lower die, reducing the stamping precision of the upper die and the lower die, improving the smoothness of the surface of the component after stamping, and indirectly improving the yield rate of the component at the same time.

[0016] 2. In this invention, by arranging two mutually cooperating oil-absorbing cotton in the moving frame, and lubricating oil is adsorbed in the interiors of both oil-absorbing cotton. After the dust and sundries on the surface of the metal sheet are cleaned by the two cleaning blocks, the two oil-absorbing cotton can apply the lubricating oil on the surface of the metal sheet, automatically lubricating the top and bottom of the metal sheet, avoiding the influence on the surface finish of the component after stamping, as well as the service life and precision of the die.

[0017] 3. In this invention, after the stamping work of the device on the metal sheet is completed, when there is still some lubricating oil remaining in the two oil-absorbing cotton, the limiting plate can be controlled to rotate counterclockwise to an inclined state, and the extending end of the second electric telescopic rod is controlled to extend, driving the fixed plate to push the two cleaning blocks and squeezing the two oil-absorbing cotton along the way. The remaining lubricating oil in the two oil-absorbing cotton can then drip downward into the diversion groove inside the limiting plate, and the lubricating oil is diverted through the diversion groove to the top of the lower die to lubricate the multiple round rods. After this part of the lubricating oil lubricates the round rods, it can fall downward through the round grooves into the collection box for collection, thus achieving the effect of collecting and reusing the remaining lubricating oil and avoiding the waste of lubricating oil.

[0018] 4. In this invention, by arranging limiting mechanisms at the four corner positions of the top frame, before the metal sheet is placed on the top of the top frame waiting for stamping, the two rotating shafts can be controlled to rotate, driving the multiple L-shaped rotating plates to rotate towards the direction close to the top frame to a vertically upward state to limit the metal sheet, ensuring that the metal sheet is in a horizontal straight state on the top of the top frame, facilitating the precise stamping of the metal sheet by the cooperation of the upper die and the lower die. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] For the convenience of those skilled in the art to understand, the present invention will be further described below in conjunction with the drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of a stamping and forming device for a wheelchair load-bearing plate proposed by the present invention; Figure 2 It is a schematic diagram of the structure of the stamping and forming mechanism in the present invention; Figure 3 It is a schematic diagram of the separation between the top frame and the lower die in the present invention; Figure 4Schematic structural diagram of the collection box in the present invention in a pulled-out state; Figure 5 Schematic structural diagram of the limiting mechanism in the present invention; Figure 6 Schematic structural diagram of the moving frame in the present invention; Figure 7 Schematic structural diagram of the cleaning block and the oil-absorbing cotton in the present invention; Figure 8 Schematic structural diagram of the limiting plate rotating to an inclined state in the present invention; Figure 9 Cross-sectional structural view of the box body in the present invention; Figure 10 Schematic structural diagram of the driving mechanism in the present invention.

[0021] In the figure: 1, processing table; 2, top plate; 3, moving frame; 4, box body; 5, moving plate; 6, first chute; 7, cylinder; 8, guide rod; 9, upper die; 10, lower die; 11, top frame; 12, round rod; 13, connecting spring; 14, round groove; 15, connecting groove; 16, collection box; 17, filter screen; 18, third chute; 19, mounting block; 20, first electric slider; 21, cleaning block; 22, convex block; 23, limiting plate; 24, second electric slider; 25, connecting end; 26, mounting plate; 27, oil-absorbing cotton; 28, third electric slider; 29, first electric telescopic rod; 30, push plate; 31, fourth electric slider; 32, rotating block; 33, second electric telescopic rod; 34, fixing plate; 35, suction cup; 36, L-shaped rotating plate; 37, rotating shaft; 38, support plate; 39, storage groove. Detailed implementation manners

[0022] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0023] Refer to Figures 1 - 10, A stamping and forming device for a wheelchair load-bearing plate, comprising a processing table 1. The top of the processing table 1 is installed with a top plate 2 through a connecting column. A stamping and forming mechanism is provided between the processing table 1 and the top plate 2. A cleaning mechanism for cleaning the metal sheet is provided above the processing table 1 near the stamping and forming mechanism. The cleaning mechanism includes a moving frame 3. Two first sliding grooves 6 are respectively opened on the inner walls of the two opposite sides of the processing table 1. The moving frame 3 can slide back and forth in the first sliding grooves 6 through the first electric sliders 20 installed on the outer walls of both sides. Two cooperating cleaning blocks 21 are installed inside the moving frame 3. A box body 4 is installed on the processing table 1 near the moving frame 3. A driving mechanism for driving the metal sheet to move is installed at one end of the processing table 1 away from the stamping and forming mechanism.

[0024] As a technical optimization scheme of the present invention, two installation blocks 19 are provided on the inner walls of the two opposite sides inside the moving frame 3. Second sliding grooves are opened on the outer walls of the opposite sides of the multiple installation blocks 19. Two installation plates 26 are provided between two of the installation blocks 19. Oil-absorbing cotton 27 is installed on the outer walls of the two installation plates 26 close to each other. The two ends of the two installation plates 26 and the two cleaning blocks 21 can move up and down in the second sliding grooves through the second electric sliders 24. The provided cleaning blocks 21 can clean the dust and debris on the surface of the metal sheet. The oil-absorbing cotton 27 can lubricate the surface of the metal sheet. The distance between the two cleaning blocks 21 and the oil-absorbing cotton 27 can be adjusted by the movement of the second electric sliders 24 in the second sliding grooves, which is convenient for adapting to metal sheets of different thicknesses.

[0025] As a technical optimization scheme of the present invention, third sliding grooves 18 are opened on the inner walls of the two opposite sides inside the moving frame 3. The installation blocks 19 at both ends of the two cleaning blocks 21 can move back and forth in the third sliding grooves 18. The installation blocks 19 at both ends of the two cleaning blocks 21 can move in the third sliding grooves 18, which is convenient for the subsequent cleaning blocks 21 to squeeze the oil-absorbing cotton 27.

[0026] As a technical optimization scheme of the present invention, connection ends 25 for communicating with an external oil supply mechanism are installed on the outer walls of the two installation plates 26 away from each other. A limiting plate 23 is hinged to the bottom of one of the installation plates 26. A diversion groove is opened at the bottom of the limiting plate 23. A convex block 22 abuting against the limiting plate 23 is installed at the bottom of one of the cleaning blocks 21. The provided limiting plate 23 can limit the cleaning blocks 21, avoiding the two cleaning blocks 21 being in a movable state when the driving mechanism drives the metal sheet to move inside the moving frame 3, which affects the oiling work of the oil-absorbing cotton 27 on the surface of the metal sheet; when it is necessary to recover the residual lubricating oil in the oil-absorbing cotton 27, the limiting plate 23 can be driven to rotate, which is convenient for the cleaning blocks 21 to move in the third sliding grooves 18 to squeeze it. The squeezed lubricating oil can fall into the diversion groove of the limiting plate 23 for collection and discharge.

[0027] As a technical optimization solution of the present invention, the stamping mechanism includes a cylinder 7 installed at the bottom of the top plate 2. The extending end of the cylinder 7 is installed with an upper die 9. The top of the upper die 9 is installed with a plurality of guide rods 8. The tops of the plurality of guide rods 8 all pass through the top plate 2. A lower die 10 is installed directly below the upper die 9 on the top of the processing table 1. A groove is formed inside the lower die 10, and a collection box 16 is inserted into the groove. The upper die 9 and the lower die 10 cooperate with each other to extrude and form the metal sheet.

[0028] As a technical optimization solution of the present invention, circular grooves 14 communicating with the groove are formed at the four corner positions of the lower die 10. A circular rod 12 is slidably arranged inside each of the plurality of circular grooves 14. The tops of the plurality of circular rods 12 are commonly connected with a top frame 11. Filter nets 17 are installed on the inner top surfaces of the groove close to the plurality of circular grooves 14. The bottoms of the plurality of circular rods 12 are connected with the filter nets 17 through connecting springs 13. Two connecting grooves 15 are symmetrically formed at the top of the lower die 10. The two ends of the connecting groove 15 are respectively communicated with the two circular grooves 14. The lubricating oil discharged by the extrusion of the oil-absorbing cotton 27 can lubricate the inner walls of the circular grooves 14 under the guidance of the diversion groove, facilitating the up and down movement of the circular rods 12, and the excess lubricating oil can fall into the collection box 16 through the circular grooves 14 for collection, avoiding waste of lubricating oil.

[0029] As a technical optimization solution of the present invention, the limiting mechanism includes two rotating shafts 37 arranged on the outer walls of the opposite sides of the top frame 11. Telescopic L-shaped rotating plates 36 are installed on the outer walls of the two ends of the two rotating shafts 37. Storage grooves 39 are formed on the outer walls of the top frame 11 close to the plurality of L-shaped rotating plates 36. One ends of the plurality of L-shaped rotating plates 36 close to the top frame 11 can be stored in the storage grooves 39. Support plates 38 are rotatably installed at the ends of the plurality of L-shaped rotating plates 36 far from the top frame 11. The provided limiting mechanism can limit the metal sheet to be stamped and formed, so that after the upper die 9 and the lower die 10 cooperate to stamp it, the formed metal parts have higher precision.

[0030] As a technical optimization solution of the present invention, third electric sliders 28 are installed on the outer walls of the opposite sides of the box body 4. The two third electric sliders 28 can slide back and forth in the first chute 6. A first electric telescopic rod 29 is installed on the inner bottom surface of the box body 4. The extending end of the first electric telescopic rod 29 is installed with a push plate 30. The stacked metal sheets in the box body 4 can be driven by the upward extension of the extending end of the first electric telescopic rod 29 to drive the push plate 30 to move upward, so that the metal sheets located in the box body 4 can continuously move upward to realize automatic feeding.

[0031] As a technical optimization solution of the present invention, the driving mechanism includes a moving plate 5 disposed between two first sliding grooves 6. The moving plate 5 slides in the first sliding groove 6 through the fourth electric sliders 31 provided at both ends. A rotating block 32 is rotatably installed on the top of the moving plate 5, and a second electric telescopic rod 33 is installed on the outer wall of the rotating block 32 away from the moving plate 5.

[0032] As a technical optimization solution of the present invention, a fixing plate 34 is installed at the extending end of the second electric telescopic rod 33, and a plurality of suction cups 35 are installed at the bottom of the fixing plate 34. After the suction cups 35 adsorb and fix the metal sheet, the elongation of the extending end of the second electric telescopic rod 33 can drive the metal sheet into the cleaning mechanism for cleaning.

[0033] In the present invention, when the user uses the device, after placing the metal sheet to be processed inside the box body 4, the extending end of the second electric telescopic rod 33 extends, driving the fixing plate 34 and the plurality of suction cups 35 at its bottom to move to the top opening position of the box body 4. Then, the extending end of the first electric telescopic rod 29 extends upward, driving the push plate 30 to move upward together to push the stacked metal sheets on its top until the top of the topmost metal sheet is tightly adsorbed and fixed to the plurality of suction cups 35 above the box body 4. Then, the extending end of the second electric telescopic rod 33 continues to extend, driving the metal sheet adsorbed and fixed at the bottom of the plurality of suction cups 35 to move towards the moving frame 3. After the metal sheet enters the inside of the moving frame 3, the metal sheet will pass through the gap between the two cleaning blocks 21. At this time, the dust and debris on the upper and lower sides of the metal sheet will be automatically scraped off during the movement of the metal sheet, achieving the effect of automatically cleaning the dust and debris on the surface of the metal sheet.

[0034] After the metal sheet is cleaned by the two cleaning blocks 21, it will continue to move between the two oil-absorbing cotton 27. Since both of the two oil-absorbing cotton 27 are connected to the connection end 25 through an external oil supply mechanism before use, lubricating oil is transported into the inside of the two oil-absorbing cotton 27 for adsorption and storage. When the metal sheet passes between the two oil-absorbing cotton 27 with lubricating oil adsorbed inside, the two oil-absorbing cotton 27 can automatically apply the lubricating oil to the outer walls of the upper and lower sides of the metal sheet, thereby achieving the effect of automatically applying lubricating oil and avoiding the problems that the smoothness of the metal sheet when being stamped into parts, the service life and accuracy of the mold are affected.

[0035] After the metal sheet is cleaned and oiled, one end of it passes through the moving frame 3 and is close to the lower die 10. At this time, the adsorption between the suction cup 35 and the metal sheet can be controlled to be released. With the help of the manipulator or manual operation on both sides of the lower die 10, the metal sheet is pulled until it is stably placed on the top of the top frame 11 on the top of the lower die 10. After the metal sheet is located on the top of the top frame 11, the two rotating shafts 37 can be respectively driven to rotate, and then the L-shaped rotating plates 36 at both ends of the two rotating shafts 37 rotate towards the direction close to the top frame 11 to be in a vertical state. At this time, one end of each of the multiple L-shaped rotating plates 36 close to the top frame 11 is received in the receiving groove 39, and the inner walls of the multiple L-shaped rotating plates 36 in the vertical state are in contact with the metal sheet to limit the metal sheet, ensuring that the metal sheet is in a horizontal straight line state on the top of the top frame 11. Then, the extending end of the cylinder 7 can be controlled to extend downward, driving the upper die 9 to move downward to punch the metal sheet on the top of the top frame 11. At this time, the top frame 11 is also simultaneously subjected to the downward pressure applied by the upper die 9, causing the round rods 12 at the four corner positions of the top frame 11 to move downward in the round grooves 14, driving the multiple connecting springs 13 to be in a compressed state. After punching the metal sheet, the upper die 9 moves upward to reset. At this time, the multiple connecting springs 13 automatically reset without being affected by the pressure, and thus can push the punched and formed part upward. At this time, the rotating block 32 can be controlled to rotate upward, driving the second electric telescopic rod 33, the fixing plate 34 and the suction cup 35 to rotate upward together. The control box 4 and the moving frame 3 are respectively moved in the first chute 6 towards the direction of the moving plate 5 by means of the third electric slider 28 and the first electric slider 20, so that a gap is generated between the moving frame 3 and the lower die 10, facilitating the punched and formed part to be taken above the gap by the manipulator arranged on both sides of the lower die 10 and dropped downward into the pre-placed collection box for collection.

[0036] After the upper die 9 and the lower die 10 cooperate to punch the metal sheet on the top of the top frame 11, if the metal part is stuck in the gap between the top frame 11 and the lower die 10, making it impossible for the top frame 11 to automatically push it upward and discharge it, the two rotating shafts 37 can be synchronously controlled to rotate, driving the multiple L-shaped rotating plates 36 to rotate away from the top frame 11, so that the end of the L-shaped rotating plate 36 received in the receiving groove 39 rotates upward and extends out, and then the stuck metal part can be pried upward to assist the top frame 11 to push it upward, avoiding such unexpected situations and the problem of being unable to handle it in time and reducing the stamping efficiency.

[0037] And during the use of the device, if it is found that the surface of the stamped metal part is relatively rough and the inner wall of the upper die 9 needs to be inspected, at this time, the extending end of the cylinder 7 can be controlled to contract upward, driving the upper die 9 to move upward together. And after the upper die 9 moves upward to the specified height, the two rotating shafts 37 can be controlled to rotate, driving the multiple L-shaped rotating plates 36 to rotate towards the top frame 11 and be in a vertically upward state, and synchronously controlling the supporting plates 38 at the tops of the multiple L-shaped rotating plates 36 to rotate to a horizontal state. Then, the retractable parts of the multiple L-shaped rotating plates 36 can be controlled to extend upward until the supporting plates 38 at the tops of the L-shaped rotating plates 36 are in contact with the bottom of the upper die 9. At this time, the multiple L-shaped rotating plates 36 in the extended state can assist in providing support for the upper die 9, avoiding the problem that during the process of the staff inspecting the inner wall of the upper die 9, the cylinder 7 is accidentally started and drives the upper die 9 to move downward, posing a safety hazard to the staff who are performing the inspection operation, and ensuring the safety of the staff who are inspecting the inner wall of the upper die 9 during the inspection operation.

[0038] Meanwhile, after the stamping work of the metal sheet by the device is completed, the two rotating shafts 37 can be controlled to rotate again, driving the multiple L-shaped rotating plates 36 to rotate downward away from the top frame 11, so that the multiple L-shaped rotating plates 36 drive the supporting plates 38 at their tops to rotate until they are in contact with the top of the processing table 1. At this time, the top frame 11 can support its bottom through the multiple L-shaped rotating plates 36 in a downward vertical state. The extending end of the cylinder 7 can be controlled to extend downward, driving the bottom end of the upper die 9 to be in contact with the top end of the top frame 11, so that when the device is not working, the top frame 11 can block the bottom opening of the upper die 9, preventing external dust or other sundries from adhering to the inner wall of the upper die 9 and affecting the stamping accuracy of the upper die 9 for the metal sheet in the future, and improving the cleanliness of the inner wall of the upper die 9.

[0039] After the stamping operation of the device on the metal sheet is completed, when there is still some lubricating oil remaining inside the two oil-absorbing cotton pads 27, at this time, the limit plate 23 that was originally in contact with the bump 22 can be controlled to rotate counterclockwise to an inclined state, and the first electric slider 20 can be moved in the first chute 6 towards the direction close to the lower die 10 until the end of the limit plate 23 away from the mounting plate 26 comes into contact with the round rod 12. Since the limit plate 23 cannot continue to limit the position of the cleaning block 21 after rotating, at this time, the extending end of the second electric telescopic rod 33 can be controlled to extend, driving the fixing plate 34 to push the two cleaning blocks 21. The two cleaning blocks 21 can move in the third chute 18 towards the direction close to the oil-absorbing cotton pads 27 through the mounting blocks 19 at both ends and squeeze the two oil-absorbing cotton pads 27, squeezing and discharging the remaining lubricating oil inside them into the diversion groove on the top of the limit plate 23. After being guided by the diversion groove, the lubricating oil can flow into the round groove 14 smoothly. Since the connecting groove 15 is opened at the top of the lower die 10, the lubricating oil flowing into the round groove 14 can also enter another round groove 14 through the connecting groove 15, so as to lubricate the inner walls of multiple round grooves 14, making the round rod 12 move up and down more smoothly in the round groove 14, and enabling the top frame 11 to lift the stamped metal parts in time during the working process.

[0040] The lubricating oil flowing into the round groove 14 can pass downward through the filter screen 17 as the round rod 12 moves up and down subsequently. The filter screen 17 can filter the impurities in the lubricating oil, so that the filtered lubricating oil can drip downward into the collection box 16 inserted inside the groove for collection, which is convenient for reuse next time and avoids waste of lubricating oil.

[0041] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A stamping and forming device for a wheelchair load-bearing plate, comprising a processing table (1), characterized in that, The top of the processing table (1) is provided with a top plate (2) through a connecting column. A stamping mechanism is arranged between the processing table (1) and the top plate (2). A cleaning mechanism for cleaning the metal sheet is arranged above the processing table (1) near the stamping mechanism. The cleaning mechanism includes a moving frame (3). Two first sliding grooves (6) are respectively opened on the inner walls of the two opposite sides of the processing table (1). The moving frame (3) can slide back and forth in the first sliding grooves (6) through the first electric sliders (20) installed on the outer walls of both sides. Two cooperating cleaning blocks (21) are installed inside the moving frame (3). A box body (4) is installed on the processing table (1) near the moving frame (3). A driving mechanism for driving the metal sheet to move is installed at one end of the processing table (1) away from the stamping mechanism.

2. The stamping and forming device for a wheelchair load-bearing plate according to claim 1, characterized in that Two mounting blocks (19) are respectively arranged on the inner walls of the two opposite sides inside the moving frame (3). Second sliding grooves are opened on the outer walls of the opposite sides of the plurality of mounting blocks (19). Two mounting plates (26) are arranged between two of the mounting blocks (19). Oil-absorbing cotton (27) is installed on the outer walls of the two mounting plates (26) close to each other. The two ends of the two mounting plates (26) and the two cleaning blocks (21) can move up and down in the second sliding grooves through the second electric sliders (24).

3. The stamping and forming device for a wheelchair load-bearing plate according to claim 2, wherein, Third sliding grooves (18) are respectively opened on the inner walls of the two opposite sides inside the moving frame (3). The mounting blocks (19) at the two ends of the two cleaning blocks (21) can slide back and forth in the third sliding grooves (18).

4. A stamping and forming device for a wheelchair load-bearing plate according to claim 2, characterized in that, Connecting ends (25) for communicating with an external oil supply mechanism are respectively installed on the outer walls of the two mounting plates (26) away from each other. A limiting plate (23) is hinged to the bottom of one of the mounting plates (26). A diversion groove is opened at the bottom of the limiting plate (23). A convex block (22) abutted against the limiting plate (23) is installed at the bottom of one of the cleaning blocks (21).

5. The stamping and forming device for a wheelchair load-bearing plate according to claim 1, characterized in that, The stamping mechanism includes a cylinder (7) installed at the bottom of the top plate (2). A top die (9) is installed at the extending end of the cylinder (7). A plurality of guide rods (8) are installed on the top of the top die (9). The tops of the plurality of guide rods (8) all pass through the top plate (2). A bottom die (10) is installed on the top of the processing table (1) directly below the top die (9). A groove is opened inside the bottom die (10). A collection box (16) is inserted into the groove.

6. The stamping and forming device for a wheelchair load-bearing plate according to claim 5, characterized in that, Circular grooves (14) communicating with the groove are respectively opened at the four corner positions of the bottom die (10). Circular rods (12) are respectively slidably arranged inside the plurality of circular grooves (14). A top frame (11) is jointly connected to the tops of the plurality of circular rods (12). Filter meshes (17) are installed on the inner top surfaces of the groove close to the plurality of circular grooves (14). The bottoms of the plurality of circular rods (12) are respectively connected to the filter meshes (17) through connecting springs (13). Two connecting grooves (15) are symmetrically opened on the top of the bottom die (10). The two ends of the connecting grooves (15) are respectively connected to the two circular grooves (14). Limiting mechanisms are respectively arranged at the four corner positions of the top frame (11).

7. A stamping and forming device for a wheelchair load-bearing plate according to claim 6, characterized in that, The limiting mechanism includes two rotating shafts (37) arranged on the outer walls of the opposite sides of the top frame (11). Telescopic L-shaped rotating plates (36) are installed on the outer walls of both ends of the two rotating shafts (37). Receiving grooves (39) are formed in the outer walls of the top frame (11) close to the plurality of L-shaped rotating plates (36). One end of each of the plurality of L-shaped rotating plates (36) close to the top frame (11) can be received in the receiving groove (39). Support plates (38) are rotatably installed at one end of each of the plurality of L-shaped rotating plates (36) away from the top frame (11).

8. A stamping and forming device for a wheelchair load-bearing plate according to claim 1, characterized in that, Third electric sliders (28) are installed on the outer walls of the opposite sides of the box body (4). The two third electric sliders (28) can slide back and forth in the first chute (6). A first electric telescopic rod (29) is installed on the inner bottom surface of the box body (4). A push plate (30) is installed at the extending end of the first electric telescopic rod (29).

9. A stamping and forming device for a wheelchair load-bearing plate according to claim 1, characterized in that, The driving mechanism includes a moving plate (5) arranged between the two first chutes (6). The moving plate (5) slides in the first chute (6) through fourth electric sliders (31) arranged at both ends. A rotating block (32) is rotatably installed at the top of the moving plate (5). A second electric telescopic rod (33) is installed on the outer wall of one side of the rotating block (32) away from the moving plate (5).

10. A stamping device for a wheelchair load-bearing plate according to claim 9, characterized in that, A fixing plate (34) is installed at the extending end of the second electric telescopic rod (33). A plurality of suction cups (35) are installed at the bottom of the fixing plate (34).

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