A sheet metal punching die for new energy vehicle whole vehicle manufacturing

Abstract

The application discloses a sheet metal punching die for new energy automobile complete vehicle manufacturing, which comprises an upper die, a pressing assembly and a lower die; the upper die comprises a top die plate and a punching assembly; the punching assembly is fixedly connected to the bottom surface of the top die plate, penetrates through the pressing assembly and is matched with the lower die; the top die plate is fixedly connected with the moving table surface of a punch press; the lower die is fixedly connected with the workbench of the punch press; the top die plate is slidably connected with the pressing assembly and the lower die through a plurality of guide column assemblies; and the pressing assembly and the lower die are provided with a sheet metal part. The application can reduce the occurrence of punching burrs and prolong the service life of a punch.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile manufacturing, in particular to a sheet metal punching die for new energy vehicle manufacturing. BACKGROUND

[0002] Sheet metal parts are punched metal sheets, including shearing, blanking, bending, riveting, bulging, etc. to finally form a certain shaped product. Especially for sheet metal parts, the blanking process is the most commonly used technology. However, when blanking sheet metal parts, the existence of burrs after punching often affects the subsequent assembly welding and poses a great safety hazard, so it is necessary to design a sheet metal punching die for new energy vehicle manufacturing to solve the above problems. SUMMARY

[0003] The purpose of the present application is to provide a sheet metal punching die for new energy vehicle manufacturing to solve the problems existing in the prior art and reduce the occurrence of punching burrs and improve the service life of the punch.

[0004] To achieve the above purpose, the present application provides the following scheme:

[0005] A sheet metal punching die for new energy vehicle manufacturing, comprising an upper die, a pressure assembly and a lower die; the upper die comprises a top die plate and a punching assembly; the bottom surface of the top die plate is fixedly connected with the punching assembly; the lower die comprises a bottom die plate, a scraper unit and a driving limiting unit, the top surface of the bottom die plate is provided with a sliding groove; the inner wall of the sliding groove is slidably connected with the scraper unit; the driving limiting unit penetrates through the pressure assembly and is fixedly connected with the top die plate; the driving limiting unit is arranged on both sides of the scraper unit; the punching assembly penetrates through the pressure assembly and is adapted to the scraper unit; the top die plate is fixedly connected with the moving table surface of a punch press; the lower die is fixedly connected with the workbench of the punch press; the top die plate is slidably connected with the pressure assembly and the lower die through a plurality of guide column assemblies; a sheet metal part is arranged between the pressure assembly and the lower die; the scraper unit is used to remove the burrs after punching the sheet metal part.

[0006] Preferably, the driving limiting unit comprises a driving assembly and a limiting assembly; the limiting assembly is arranged between one side surface of the scraper unit and one side surface of the sliding groove; the driving assembly comprises a first wedge and a second wedge; one side surface of the first wedge and one side surface of the second wedge are respectively inclined and adapted to each other; the top end of the first wedge penetrates through the pressure assembly and is fixedly connected with the top die plate; one end of the second wedge is fixedly connected with the side surface of the scraper unit away from the limiting assembly; a plurality of first mounting holes are formed in the corner of the bottom die plate; the guide column assembly is fixedly installed in the first mounting hole.

[0007] Preferably, the scraper unit comprises a sliding block; the opposite sides of the sliding block are respectively in sliding connection with the side walls of the sliding groove; one side of the sliding block is in fixed connection with the second wedge, and the other side of the sliding block is in detachable connection with the limiting component; the top surface of the sliding block is respectively provided with a material leakage hole and an annular groove in the center; the annular groove and the material leakage hole are coaxially arranged; the annular groove is fixedly installed with a scraper assembly; the material leakage hole is matched with the punching assembly.

[0008] Preferably, the scraper assembly comprises an annular grinding block and a plurality of lift springs; a plurality of lift springs are fixedly installed between the bottom surface of the annular grinding block and the bottom surface of the annular groove; the adjacent two lift springs are arranged at equal intervals; a plurality of scraping grooves are formed in the top surface of the annular grinding block; the top surface of the annular grinding block abuts against the bottom surface of the metal piece.

[0009] Preferably, the limiting component comprises a limiting block and a return spring; one side of the limiting block is in fixed connection with one side of the sliding groove, and the other side of the limiting block abuts against the side of the sliding block and is provided with a first through hole; the first through hole is provided with the return spring; the two ends of the return spring are respectively in fixed connection with the sliding groove and the sliding block.

[0010] Preferably, the material pressing assembly comprises a material pressing plate and a thrust spring; a plurality of guide sliding holes are formed in the corner of the material pressing plate; the material pressing plate is in sliding connection with the guide column assembly through the guide sliding holes; the bottom end of the thrust spring is in fixed connection with the top surface of the material pressing plate, and the top end of the thrust spring is embedded in the bottom surface of the top die plate; a second through hole and a third through hole are formed in the center of the top surface of the material pressing plate; the bottom end of the punching assembly penetrates through the second through hole and is matched with the material leakage hole; the top end of the first wedge is in fixed connection with the top die plate through the third through hole.

[0011] Preferably, the punching assembly comprises a punch and a fixed seat; the bottom end of the punch penetrates through the fixed seat and is in transition connection with the fixed seat; a plurality of steel balls are embedded in the top end of the punch; the upper half of the plurality of steel balls is embedded in the bottom surface of the top die plate; the top surface of the fixed seat is in fixed connection with the bottom surface of the top die plate; the bottom end of the punch penetrates through the second through hole and is matched with the material leakage hole.

[0012] Preferably, the corner of the top die plate is provided with a second mounting hole; the guide column assembly is fixedly installed in the second mounting hole.

[0013] Preferably, the bottom surface of the top die plate is provided with a socket hole; a guide column is fixedly installed in the socket hole; the top end of the thrust spring is fixedly installed in the socket hole; the thrust spring is sleeved outside the guide column.

[0014] Preferably, the first wedge is in sliding contact with a vertical plane adjacent to the inclined side of the first wedge and the second wedge is in sliding contact with a vertical plane adjacent to the inclined side of the second wedge.

[0015] The present application has the following technical effects:

[0016] The present application can place the sheet metal part on the lower die, the moving platform of the punch machine drives the top die plate and the material pressing assembly to move downward, the material pressing assembly first contacts the sheet metal part, and the lower die and the material pressing assembly clamp the sheet metal part together to prevent it from moving; the punching assembly continues to move downward and penetrates the material pressing assembly to punch the standard hole on the sheet metal part. When the top die plate returns, the scraper assembly grinds the burrs generated by punching in the moving process of the sliding block, reduces the impact of the burrs on product and personal safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 The main view structural diagram of the punching die after blanking to the bottom.

[0019] Figure 2 The side view structural diagram of the top die plate.

[0020] Figure 3 The side view structural diagram of the punching assembly.

[0021] Figure 4 The main view structural diagram of the scraper unit, the driving assembly and the limiting assembly.

[0022] Figure 5 The side view structural diagram of the lower die.

[0023] Figure 6 The main view structural diagram of the punching die before blanking.

[0024] Figure 7 The main view structural diagram of the second embodiment.

[0025] The components are as follows: 1. Upper die; 11. Top template; 12. Punch; 13. Fixed seat; 14. Steel ball; 15. Recess; 16. Guide post; 2. Pressure assembly; 21. Pressure plate; 22. Thrust spring; 23. Guide hole; 3. Bottom template; 4. Scraper unit; 41. Slider; 42. Material discharge hole; 43. Ring groove; 44. Ring grinding block; 45. Lifting spring; 5. Drive assembly; 51. First wedge; 52. Second wedge; 6. Limiting assembly; 61. Limiting block; 62. Reset spring; 63. First through hole; 71. Spiral groove; 72. Spiral protrusion; 73. Steel ball. Detailed Implementation

[0026] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1:

[0029] Depend on Figures 1-6 The sheet metal punching die for manufacturing new energy vehicles includes an upper die 1, a pressing assembly 2, and a lower die. The upper die 1 includes a top template 11 and a punching assembly. The punching assembly is fixedly connected to the bottom surface of the top template 11, and the punching assembly passes through the pressing assembly 2 and is adapted to the lower die. The top template 11 is fixedly connected to the moving table of a stamping machine (not shown in the figure). The lower die is fixedly connected to the worktable of the stamping machine. The top template 11 is slidably connected to the pressing assembly 2 and the lower die through several guide post assemblies. Sheet metal parts are provided between the pressing assembly 2 and the lower die.

[0030] By placing the sheet metal part onto the lower die, the moving table of the stamping machine drives the top die plate 11 and the pressure assembly 2 to move downward. At this time, the pressure assembly 2 first contacts the sheet metal part and clamps the sheet metal part together with the lower die to prevent it from moving. At this time, the punching assembly passes through the pressure assembly 2 to punch a standard hole on the sheet metal part.

[0031] Further optimization scheme, the lower die includes the bottom die plate 3, the scraper unit 4, the driving assembly 5 and the limiting assembly 6;The top surface of the bottom die plate 3 is provided with a sliding groove;The sliding groove is slidably connected with a sliding block 41;The opposite side surfaces of the sliding block 41 are slidably connected with the side walls of the sliding groove;A limiting block 61 is arranged between one side surface of the sliding block 41 and one side surface of the sliding groove, and the sliding block 41 and the limiting block 61 are detachably connected, so that when the side surface of the sliding block 41 and the limiting block 61 is fitted, the sliding block 41 can be fixedly limited, the material leakage hole 42 can be matched with the punch 12 and vertically arranged, and the material leakage hole 42 on the top surface of the sliding block 41 and the punch 12 are not vertically arranged;The other side surface of the sliding block 41 is fixedly connected with the second wedge block 52;The second wedge block 52 and the limiting block 61 are arranged at the two ends of the sliding block 41 respectively;The side surfaces of the first wedge block 51 and the second wedge block 52 are respectively inclinedly arranged and matched with each other;The top end of the first wedge block 51 is fixedly connected with the bottom surface of the top die plate 11, so that when the top die plate 11 goes down, the first wedge block 51 drives the second wedge block 52 to finally drive the sliding block 41 to be fitted with the limiting block 61, that is, to be limited in place;A material leakage hole 42 and a ring groove 43 are respectively arranged in the center of the top surface of the sliding block 41;The ring groove 43 and the material leakage hole 42 are coaxially arranged;A ring grinding block 44 is fixedly installed in the ring groove 43;A plurality of top-up springs 45 are fixedly installed between the bottom surface of the ring grinding block 44 and the bottom surface of the ring groove 43;The adjacent two top-up springs 45 are arranged at equal intervals;A plurality of scraping grooves (not shown in the drawing) are arranged on the top surface of the ring grinding block 44;The top surface of the ring grinding block 44 abuts against the bottom surface of the metal part. A plurality of first mounting holes are arranged at the corners of the bottom die plate 3;A guide column assembly is fixedly installed in the first mounting hole.

[0032] Further, the guide column assembly is a combined kit of guide sleeve guide column, which is a standard part belonging to the prior art, and will not be described here.

[0033] Further, the first wedge block 51 and the second wedge block 52 are respectively provided with inclined surfaces and vertical surfaces, the inclined surfaces and the vertical surfaces are arranged adjacent to each other, the two inclined surfaces are matched with each other, the two vertical surfaces are matched with each other, the first wedge block 51 drives the second wedge block 52 through the inclined surface, and the first wedge block 51 can still continue to go down after the second wedge block 52 is driven in place through the vertical surface.

[0034] Further, the top surface of the ring grinding block 44 is provided with a scraping groove, that is, the top surface of the ring grinding block 44 is realized as a file surface, when the ring grinding block 44 is driven by the sliding block 41 to abut against the bottom surface of the metal part and slide, the file surface of the top surface of the ring grinding block 44 can grind off the burrs of the punching edge of the metal part, realizing the burr-free punching of the metal part.

[0035] Further optimization scheme, the limiting assembly 6 includes limiting block 61 and reset spring 62;The side surface of the limiting block 61 is fixedly connected with the side surface of the sliding groove, which is convenient for maintaining later, preferably screw connection;The other side surface of the limiting block 61 is the limiting surface of the sliding block 41, which is in abutment with the side surface of the sliding block 41 and is provided with a first through hole 63;The first through hole 63 is provided with a reset spring 62;The reset spring 62 is fixedly connected with the sliding groove and the sliding block 41 at both ends, and the reset spring 62 can push the sliding block 41 to move in the direction of the first wedge block 51.

[0036] Further optimization scheme, the bottom surface of the top die plate 11 is provided with a recess hole 15;The recess hole 15 is fixedly provided with a guide column 16;The pressing assembly 2 includes a pressing plate 21 and a thrust spring 22;The bottom end of the thrust spring 22 is fixedly connected with the top surface of the pressing plate 21, and the top end of the thrust spring 22 is fixedly installed in the recess hole 15;The thrust spring 22 is sleeved outside the guide column 16, and the guide column 16 can avoid the deflection of the thrust spring 22 caused by the uneven force of the thrust spring 22 during compression, thereby affecting the service life of the thrust spring 22. The top surface of the pressing plate 21 is provided with a second through hole and a third through hole at the center, respectively;The punching assembly includes a punch 12 and a fixed seat 13;The bottom end of the punch 12 penetrates through the fixed seat 13 and is in transition fit with the fixed seat 13;The top end of the punch 12 is embedded with a plurality of steel balls 14;The upper half of the plurality of steel balls 14 is embedded in the bottom surface of the top die plate 11;The top surface of the fixed seat 13 is fixedly connected with the bottom surface of the top die plate 11;The bottom end of the punch 12 penetrates through the second through hole and is matched with the material leakage hole 42, and the pressing plate 21 is provided with a second through hole matched with the punch 12, so that the metal plate can be uniformly pressed, and the movement and punching edge collapse can be avoided.

[0037] Further optimization scheme, the corner of the top die plate 11 is provided with a second mounting hole;The second mounting hole is fixedly provided with a guide column assembly. The corner of the pressing plate 21 is provided with a plurality of guide sliding holes 23;The pressing plate 21 is slidably connected with the guide column assembly through the guide sliding hole 23;

[0038] The working process of the embodiment is as follows:

[0039] When the metal plate needs to be punched, the metal plate is placed on the top surface of the bottom die plate 3, the punch press is driven, the movable table surface drives the top die plate 11 and the pressing plate 21 to slide downward along the guide column assembly, when the bottom surface of the pressing plate 21 is in abutment with the metal plate, the movable table surface is continuously driven to drive the top die plate 11 to move downward, at this time, the punch 12 penetrates through the second through hole in sequence, and the metal plate enters the material leakage hole 42 to a certain depth, so that the punching of the metal plate is completed, and the waste of the metal plate leaks out of the mold from the material leakage hole 42.

[0040] As the pressure plate 21 moves downward along the guide post assembly, the inclined surface of the first wedge 51 drives the inclined surface of the second wedge 52, thereby pushing the slider 41 to slide to the other end of the groove until the vertical surface of the first wedge 51 drives the vertical surface of the second wedge 52 and one side of the slider 41 and one side of the limiting block 61 simultaneously come into contact, thus completing the limiting of the slider 41 and the alignment of the material leakage hole 42 with the punch 12.

[0041] After punching is completed, the moving table drives the top template 11 and the pressure plate 21 to slide upward along the guide post assembly. At this time, the top template 11 slides upward first due to the thrust of the thrust spring 22, and the pressure force of the pressure plate 21 gradually decreases and gradually moves upward. During the process, the inclined surface of the second wedge 52 begins to drive the first wedge 51 to move upward under the action of the reset spring 62. The slider 41 also begins to move in the opposite direction with the second wedge 52. During the reverse movement of the slider 41, the ring grinding block 44 is lifted by the spring 45 to provide the ejection force, so that the ring grinding block 44 sheet metal part is initially fixed between the bottom template 3 and the pressure plate 21 and moves with the slider 41 to grind and remove the burrs generated by punching.

[0042] Example 2:

[0043] Depend on Figure 7 As shown, the difference between the pressure plate 21 and the punching assembly in this embodiment and those in Embodiment 1 is only that the inner wall of the second through hole of the pressure plate 21 is provided with a spiral groove 71, and the side wall of the punch 12 is fixed with a spiral protrusion 72, which is adapted to the spiral groove 71; a steel ball 73 is embedded on the top surface of the punch 12, and the upper half of the steel ball 73 is embedded in the bottom surface of the top template 11 and slides in contact with the top template 11; the punch 12 is slidably assembled with the fixed seat; and the bottom end of the punch 12 is beveled.

[0044] Technical effects of this embodiment:

[0045] When the punch 12 moves downward, the spiral protrusion 72 and the spiral groove 71 are matched to realize the rotation of the punch 12 during the downward movement. This changes the traditional forward punch to the shearing punch of this embodiment when the punch 12 contacts and punches the sheet metal part, reducing the punching force and improving the service life of the punch 12.

[0046] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] The above described embodiments are only to illustrate the preferred modes of the present application, and are not intended to limit the scope of the present application. Any modification and improvement made by those skilled in the art to the technical solutions of the present application without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A sheet metal punching die for new energy vehicle complete vehicle manufacturing, characterized in that, The utility model provides a punch and die set, including upper die (1), pressure material subassembly (2) and lower mould, upper die (1) includes top die (11) and punch assembly, top die (11) bottom surface is fixedly connected with punch assembly, lower mould includes bottom die (3), scraper unit (4) and drive limiting unit, bottom die (3) top surface is equipped with slide groove, the inner wall of slide groove is slidably connected with scraper unit (4), drive limiting unit penetrates pressure material subassembly (2) and is fixedly connected with top die (11), drive limiting unit is arranged in the both sides of scraper unit (4), punch assembly penetrates pressure material subassembly (2) and is adapted with scraper unit (4), top die (11) is fixedly connected with the dynamic table surface of punch press, lower mould is fixedly connected with the workbench of punch press, top die (11) is slidably connected with pressure material subassembly (2) and lower mould through a plurality of guide column assemblies, pressure material subassembly (2) and lower mould are provided with sheet metal part between, scraper unit (4) is used for scraping the burrs after the punching of sheet metal part, The scraper unit (4) includes a sliding block (41), the top surface of the sliding block (41) is provided with a material leakage hole (42) and a ring groove (43) at the center, respectively, the ring groove (43) is fixedly installed with a scraper assembly, the material leakage hole (42) is adapted with the punch assembly, The scraper assembly includes a ring grinding block (44) and a plurality of top-up springs (45), a plurality of top-up springs (45) are fixedly installed between the bottom surface of the ring grinding block (44) and the bottom surface of the ring groove (43), and the adjacent two top-up springs (45) are arranged at equal intervals, the top surface of the ring grinding block (44) is provided with a plurality of scraping grooves, and the top surface of the ring grinding block (44) is in abutment with the bottom surface of the sheet metal part.

2. The sheet metal punching die for new energy vehicle manufacturing according to claim 1, characterized in that: The drive limiting unit includes a drive assembly (5) and a limiting assembly (6), the limiting assembly (6) is arranged between one side surface of the scraper unit (4) and one side surface of the slide groove, the drive assembly (5) includes a first wedge block (51) and a second wedge block (52), one side surface of the first wedge block (51) and one side surface of the second wedge block (52) are respectively arranged obliquely and adapted with each other, the top end of the first wedge block (51) penetrates the pressure material subassembly (2) and is fixedly connected with the top die (11), one end of the second wedge block (52) is fixedly connected with one side surface of the scraper unit (4) away from the limiting assembly (6), a plurality of first mounting holes are arranged at the corner of the bottom die (3), and the first mounting holes are fixedly installed with the guide column assemblies.

3. The sheet metal punching die for new energy vehicle manufacturing according to claim 2, characterized in that: The opposite side surfaces of the sliding block (41) are slidably connected with the side walls of the slide groove, one side surface of the sliding block (41) is fixedly connected with the second wedge block (52), the other side surface of the sliding block (41) is detachably connected with the limiting assembly (6), and the ring groove (43) and the material leakage hole (42) are coaxially arranged.

4. The sheet metal punching die for new energy vehicle manufacturing according to claim 2, characterized in that: The limiting assembly (6) comprises a limiting block (61) and a reset spring (62); one side surface of the limiting block (61) is fixedly connected with one side surface of the sliding groove, and the other side surface of the limiting block (61) is in abutment with a side surface of the sliding block (41) and is provided with a first through hole (63); the reset spring (62) is arranged in the first through hole (63); and two ends of the reset spring (62) are fixedly connected with the sliding groove and the sliding block (41) respectively.

5. The sheet metal punching die for new energy vehicle manufacturing according to claim 3, characterized in that: The material pressing assembly (2) comprises a material pressing plate (21) and a thrust spring (22); a plurality of guide sliding holes (23) are formed in the corner of the material pressing plate (21); the material pressing plate (21) is slidably connected with the guide column assembly through the guide sliding holes (23); the bottom end of the thrust spring (22) is fixedly connected with the top surface of the material pressing plate (21), and the top end of the thrust spring (22) is embedded in the bottom surface of the top die plate (11); the second through hole and the third through hole are formed in the center of the top surface of the material pressing plate (21); the bottom end of the punching assembly penetrates through the second through hole and is matched with the material leakage hole (42); and the top end of the first wedge block (51) is fixedly connected with the top die plate (11) through the third through hole.

6. The sheet metal punching die for new energy vehicle manufacturing according to claim 5, characterized in that: The punching assembly comprises a punch (12) and a fixing seat (13); the bottom end of the punch (12) penetrates through the fixing seat (13) and is in transition fit with the fixing seat (13); a plurality of steel balls (14) are embedded in the top end of the punch (12); the upper half of the plurality of steel balls (14) is embedded in the bottom surface of the top die plate (11); the top surface of the fixing seat (13) is fixedly connected with the bottom surface of the top die plate (11); and the bottom end of the punch (12) penetrates through the second through hole and is matched with the material leakage hole (42).

7. The sheet metal punching die for new energy vehicle manufacturing according to claim 1, characterized in that: The corner of the top die plate (11) is provided with a second mounting hole; and the guide column assembly is fixedly installed in the second mounting hole.

8. The sheet metal punching die for new energy vehicle manufacturing according to claim 5, characterized in that: The bottom surface of the top die plate (11) is provided with a nest hole (15); a guide column (16) is fixedly installed in the nest hole (15); the top end of the thrust spring (22) is fixedly installed in the nest hole (15); and the thrust spring (22) is sleeved outside the guide column (16).

9. The sheet metal punching die for new energy vehicle manufacturing according to claim 2, characterized in that: The first wedge block (51) and the vertical plane adjacent to the inclined side surface thereof are in sliding contact with the second wedge block (52) and the vertical plane adjacent to the inclined side surface thereof.

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