A self-trimming punching die for automobile parts

Abstract

The present invention is applicable to the field of automobile parts processing, and provides a self-trimming punching die for automobile parts, including a lower die support plate, an upper die mounting plate and a top plate, the lower die support plate is fixedly connected with four guide pillars, the upper die mounting plate is slidably connected to the four guide pillars, the top plate is fixed to the upper ends of the four guide pillars, and also includes: an upper die and a lower die, the upper die is fixedly mounted on the lower end of the upper die mounting plate, and the four side walls of the upper die are fixedly connected with cutting knives; a blanking trough is provided through the middle of the lower die support plate, and four guide slide grooves are radiated along the center of the blanking trough at the upper end of the lower die support plate. The four lower die assembly blocks of the present invention can be opened and closed, and the four lower die assembly blocks are separated from each other, so that the trimmed automobile parts fall from the middle of the four lower die assembly blocks to the blanking trough, and are discharged from the blanking trough, and the four cutting knives cooperate with the lower die assembly block to cut the cut waste into four sections, so as to avoid the waste being sheathed on the side wall of the upper die and difficult to remove.

Description

Technical Field

[0001] The invention belongs to the field of automobile parts processing, and in particular relates to a self-trimming punching die for automobile parts. Background Art

[0002] Auto parts include sheet metal stamping parts and injection molded parts. After the sheet metal parts are stamped, the excess parts around the parts need to be trimmed. During the manufacturing process of injection molded parts, flash will be generated on the mold surface. After the injection molding is completed, the injection molded parts also need to be trimmed.

[0003] Existing automobile parts trimming is generally performed by punching through a mold, which includes a movable punch and a fixed die. The side wall of the punch cooperates with the inner wall of the die to complete the punching of the automobile parts. After the punching of the automobile parts is completed, the trimmed automobile parts are located in the die, and the trimmed waste is often covered on the punch, and the trimmed automobile parts and waste need to be manually unloaded.

[0004] When trimming large quantities of auto parts, the labor intensity of workers is high and the efficiency of unloading is slow. When a robot is used instead of manual loading and unloading, the robot must respectively clamp and remove the trimmed auto parts and waste materials in turn. The unloading steps are complicated and the cost of using the robot is high, which increases the trimming cost of auto parts. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide a self-trimming punching die for automobile parts, aiming to solve the problems of high trimming and blanking costs and low efficiency for automobile parts.

[0006] The present invention is implemented in this way. A self-trimming and punching die for automobile parts comprises a lower die support plate, an upper die mounting plate and a top plate, wherein the lower die support plate is fixedly connected with four guide posts, the upper die mounting plate is slidably connected to the four guide posts, and the top plate is fixed to the upper ends of the four guide posts, and also comprises: an upper die and a lower die, wherein the upper die is fixedly mounted on the lower end of the upper die mounting plate, and cutting knives are fixedly connected to the four side walls of the upper die; a blanking trough is provided through the middle of the lower die support plate, and four guide slide grooves are radiated along the center of the blanking trough on the upper end of the lower die support plate, and the lower die comprises four lower die assembly blocks, and the four lower die assembly blocks are respectively slidably connected in the four guide slide grooves; four springs are fixedly connected to the lower end of the lower die support plate, and the four springs are fixedly connected to the The ends of the upper mold assembly blocks are fixedly connected with the four lower mold assembly blocks respectively, and under the pulling force of the four springs, the four lower mold assembly blocks are connected end to end in sequence; the lower end of the upper mold mounting plate is fixedly connected with four limit wedges, and the upper ends of the four lower mold assembly blocks are respectively provided with two sink grooves, and the two sink grooves are respectively provided with blanking plates, and the four lower mold assembly blocks are rotatably connected with rotating shafts, and the two rotating shafts are fixedly connected to the rotating shafts; a transmission mechanism is provided on the lower mold support plate, and when the upper mold mounting plate moves upward, the transmission mechanism drives the four lower mold assembly blocks to move away from each other; a rack transmission component 1 is provided on the four lower mold assembly blocks, and when the four lower mold assembly blocks move away from each other, the rack transmission component 1 drives the rotating shaft to rotate, and the rotating shaft drives the blanking plate to rotate out of the sink groove.

[0007] A further technical solution is that the rack transmission assembly includes a slide groove 1 set on the lower mold assembly block, a transverse slide rod is slidably connected in the slide groove 1, one end of the transverse slide rod extends out of the lower mold assembly block, and the other end of the transverse slide rod is connected to a spring 2, and the spring 2 is set in the slide groove 1; a rack 1 is embedded in the upper end of the transverse slide rod, and a gear 1 meshing with the rack 1 is fixedly connected to the rotating shaft.

[0008] A further technical solution, the transmission mechanism includes a fixed block fixedly connected to the lower end of the upper mold mounting plate, the fixed block is laterally slidably connected with a hook block, one end of the hook block is fixedly connected with a spring four, and the end of the spring four is fixedly connected to the side wall of the fixed block; the lower end of the top plate is fixedly connected with a fixed wedge block, and the hook block is provided with an inclined push groove cooperating with the fixed wedge block; the lower mold support plate is vertically slidably connected with a vertical slide rod, and the side wall of the upper part of the vertical slide rod is fixedly connected with a fixed hook block; the lower end of the lower mold support plate is laterally rotatably connected with a transmission shaft two, and a rack transmission assembly two is provided on the vertical slide rod, and the vertical slide rod is transmission-connected to the transmission shaft two through the rack transmission assembly two; the lower mold support plate is rotatably connected with a transmission shaft one, the transmission shaft one vertically penetrates the lower mold support plate, and the transmission shaft one and the transmission shaft two are transmission-connected through a belt transmission assembly; the lower mold assembly block is transmission-connected to the transmission shaft one through a rack transmission assembly three.

[0009] According to a further technical solution, the rack transmission assembly 2 includes a rack 2 embedded in the side wall of the vertical slide rod, and one end of the transmission shaft 2 is fixedly connected to a gear 2 meshing with the rack 2.

[0010] According to a further technical solution, the rack transmission assembly three includes a mounting groove arranged at the lower end of the lower mold assembly block, a rack three is fixedly connected to the side wall of the mounting groove, and a gear three meshing with the rack three is fixedly connected to the upper end of the transmission shaft one.

[0011] A further technical solution is that the belt drive assembly includes a transmission shaft 2 rotatably connected to the lower end of the upper mold mounting plate, and the transmission shaft 2 is transmission-connected to the other end of the transmission shaft 2 through a bevel gear transmission assembly; the transmission shaft 2 and a lower end of the transmission shaft are respectively fixedly connected with pulley 1 and pulley 2, and the pulley 1 and pulley 2 are connected through a belt drive.

[0012] According to a further technical solution, the bevel gear transmission assembly includes a transmission shaft 2 and a bevel gear 1 and a bevel gear 2 which are fixedly connected to the transmission shaft 2 respectively, and the bevel gear 1 is meshed with the bevel gear 2.

[0013] A further technical solution is that a correction component is provided on the upper die, and the correction component includes a correction punch fixedly connected to the lower end of the upper die, and the outer contour of the correction punch is consistent with the internal contour of the automobile part. The four lower die assembly blocks are all provided with sliding grooves, and a sliding block is slidably connected in the sliding groove. A spring three is provided at the lower end of the sliding block, and the spring three is located in the sliding groove. A correction die assembly block is fixedly connected to the sliding block, and when the four correction die assembly blocks are connected, their inner contour is consistent with the outer contour of the automobile part.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The four lower die assembly blocks of the present invention can be opened and closed, and the side wall of the upper die cooperates with the inner wall of the lower die to trim the automobile parts. When the upper die mounting plate moves upward, the transmission mechanism drives the four lower die assembly blocks away from each other, so that the trimmed automobile parts fall from the middle of the four lower die assembly blocks to the blanking trough, and are discharged from the blanking trough.

[0016] 2. The four cutters cooperate with the lower die assembly block to cut the cut waste into four sections, thereby preventing the waste from being trapped on the side wall of the upper die and being difficult to remove.

[0017] 3. When the four lower die assembly blocks move away from each other, the rack transmission assembly drives the rotating shaft to rotate, and the rotating shaft drives the blanking plate to rotate out of the sink, so that the blanking plate pushes the trimming waste from the upper end of the lower die assembly block, thereby realizing the automatic cleaning of the trimming waste of automobile parts, thereby improving the efficiency of trimming of automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a self-trimming punching die for automotive parts provided by the present invention;

[0019] Figure 2 The present invention provides Figure 1 Schematic diagram of the structure when looking up at the tilt angle;

[0020] Figure 3 The present invention provides Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 The present invention provides Figure 2 Schematic diagram of the enlarged structure of B;

[0022] Figure 5 The present invention provides Figure 1 Structural diagram of the main viewing angle;

[0023] Figure 6 The present invention provides Figure 5 Schematic diagram of the cross-sectional structure from the CC perspective;

[0024] Figure 7 The present invention provides Figure 1 A schematic diagram of the structure of the four lower mold assembly blocks in the mold closing state;

[0025] Figure 8 The present invention provides Figure 1 A schematic diagram of the structure of the four lower mold assembly blocks in the mold opening state;

[0026] Fig. 9 The present invention provides Figure 1 A schematic diagram of the cross-sectional structure of the middle and lower mold assembly blocks in a local area;

[0027] Fig.10 The present invention provides Fig. 9 A schematic diagram of the structure from another perspective;

[0028] Fig.11 The present invention provides Fig. 9 Schematic diagram of the enlarged structure of D in the middle;

[0029] Fig.12 The present invention provides Figure 6 Schematic diagram of the structure of the transmission mechanism.

[0030] In the attached drawings: lower die support plate 101, guide column 102, upper die mounting plate 103, top plate 104, blanking trough 105, guide slide 106, lower die assembly block 107, spring 108, limit wedge block 109, upper die 110, cutter 111, rotating shaft 112, sink 113, blanking plate 114, rack transmission assembly 1-2, slide 1-201, horizontal slide bar 202, spring 2-203, rack 1-204, gear 1-205, transmission mechanism 3, transmission shaft 1-301, transmission shaft 2-302, vertical slide bar 303, fixed block 304, hook block 30 5. Spring four-306, fixed wedge block-307, inclined push groove-308, fixed hook block-309, rack transmission component two-4, gear two-401, rack two-402, belt transmission component-5, transmission shaft two-501, pulley one-502, pulley two-503, belt-504, bevel gear transmission component-6, bevel gear one-601, bevel gear two-602, rack transmission component three-7, mounting groove-701, rack three-702, gear three-703, correction component-8, correction punch-801, correction die assembly-802, sliding groove-803, sliding block-804, spring three-805. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0033] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.11As shown, a self-trimming punching die for automobile parts provided by an embodiment of the present invention includes a lower die support plate 101, an upper die mounting plate 103 and a top plate 104, wherein four guide posts 102 are fixedly connected to the lower die support plate 101, the upper die mounting plate 103 is slidably connected to the four guide posts 102, the top plate 104 is fixed to the upper ends of the four guide posts 102, an external telescopic driving member is connected to the upper end of the upper die mounting plate 103, and further includes: an upper die 110 and a lower die, wherein the upper die 110 is fixedly connected to the lower die support plate 101, and the upper die 110 is fixedly connected to the upper end of the upper die mounting plate 103. 0 is fixedly mounted at the lower end of the upper die mounting plate 103, and cutters 111 are fixedly connected to the four side walls of the upper die 110; a blanking trough 105 is provided through the middle of the lower die support plate 101, and four guide slots 106 are radiated along the center of the blanking trough 105 at the upper end of the lower die support plate 101, and the lower die includes four lower die assembly blocks 107, and the four lower die assembly blocks 107 are respectively slidably connected to the four guide slots 106; the lower end of the lower die support plate 101 is fixedly connected to four elastic The ends of the four springs 108 are respectively fixedly connected to the four lower die assembly blocks 107. Under the pulling force of the four springs 108, the four lower die assembly blocks 107 are connected end to end in sequence; the lower end of the upper die mounting plate 103 is fixedly connected to four limit wedges 109, and the upper ends of the four lower die assembly blocks 107 are each provided with two sinking grooves 113, and the two sinking grooves 113 are each provided with a blanking plate 114, and the four lower die assembly blocks 107 are rotatably connected with a rotating shaft 114. 12, the two rotating shafts 112 are fixedly connected to the rotating shaft 112; a transmission mechanism 3 is arranged on the lower mold support plate 101, when the upper mold mounting plate 103 moves upward, the transmission mechanism 3 drives the four lower mold assembly blocks 107 to move away from each other; a rack transmission component 2 is arranged on the four lower mold assembly blocks 107, when the four lower mold assembly blocks 107 move away from each other, the rack transmission component 2 drives the rotating shaft 112 to rotate, and the rotating shaft 112 drives the blanking plate 114 to rotate out of the sink 113.

[0034] In the embodiment of the present invention, when in use, under the pulling force of four springs 108, the four lower die assembly blocks 107 are connected end to end in sequence, the four lower die assembly blocks 107 are in a mold-closing state, forming a lower die, and the automobile parts to be trimmed are placed in the four lower die assembly blocks 107, and the external telescopic drive member drives the upper die mounting plate 103 to move downward, and the upper die mounting plate 103 drives the four limit wedges 109, the upper die 110 and the cutter 111 to move downward, and the four limit wedges 109 limit the four lower die assembly blocks 107 to avoid the four lower die assembly blocks 107 from moving in the opposite direction when the automobile parts are punched, and the side wall of the upper die 110 cooperates with the inner wall of the lower die to trim the automobile parts, and the four cutters 111 cooperate with the lower die assembly block 107 to cut the cut waste into four sections, thereby preventing the waste from being sleeved on the upper die 11 0 is not easy to remove from the side wall, the external telescopic drive member drives the upper die mounting plate 103 to move upward, the upper die mounting plate 103 drives the upper die 110 and the cutter 111 to move upward, when the upper die mounting plate 103 moves upward, the transmission mechanism 3 drives the four lower die assembly blocks 107 to move away from each other, so that the trimmed automobile parts fall from the middle of the four lower die assembly blocks 107 to the blanking trough 105, and are discharged from the blanking trough 105, when the four lower die assembly blocks 107 are away from each other, the rack transmission assembly 1-2 drives the rotating shaft 112 to rotate, the rotating shaft 112 drives the blanking plate 114 to rotate out of the sink 113, so that the blanking plate 114 pushes the trimmed waste from the upper end of the lower die assembly block 107, thereby realizing the automatic unloading of automobile parts after trimming, and the automatic cleaning of waste, thereby improving the efficiency of trimming automobile parts.

[0035] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.11 As shown, as a preferred embodiment of the present invention, the rack transmission assembly 2 includes a slide groove 201 set on the lower mold assembly block 107, and a transverse slide bar 202 is slidably connected in the slide groove 201. One end of the transverse slide bar 202 extends out of the lower mold assembly block 107, and the other end of the transverse slide bar 202 is connected to a spring 203, and the spring 203 is set in the slide groove 201; a rack 204 is embedded in the upper end of the transverse slide bar 202, and a gear 205 meshing with the rack 204 is fixedly connected to the rotating shaft 112.

[0036] In the embodiment of the present invention, when the four lower mold assembly blocks 107 are in the mold closing state, the spring 203 is in a compressed state, and the blanking plate 114 is located in the sink 113. When the four lower mold assembly blocks 107 move away from each other, the spring 203 pushes the transverse slide bar 202 to move, the transverse slide bar 202 drives the rack 1 204 to move, the rack 1 204 drives the gear 1 205 to rotate, the gear 1 205 drives the rotating shaft 112 to rotate, the rotating shaft 112 drives the blanking plate 114 to rotate, the blanking plate 114 rotates out of the sink 113, and then the blanking plate 114 pushes the waste material on the lower mold assembly block 107 down.

[0037] like Figure 1-Figure 10 As shown, as a preferred embodiment of the present invention, the transmission mechanism 3 includes a fixed block 304 fixedly connected to the lower end of the upper mold mounting plate 103, a hook block 305 is horizontally slidably connected to the fixed block 304, one end of the hook block 305 is fixedly connected to a spring four 306, and the end of the spring four 306 is fixedly connected to the side wall of the fixed block 304; a fixed wedge block 307 is fixedly connected to the lower end of the top plate 104, and an oblique push groove 308 cooperating with the fixed wedge block 307 is provided on the hook block 305; a vertical slide rod 303 is vertically slidably connected to the lower mold support plate 101, and the upper part of the vertical slide rod 303 A fixed hook block 309 is fixedly connected to the side wall; the lower end of the lower mold support plate 101 is laterally rotatably connected to a transmission shaft 2 302, and a rack transmission assembly 2 4 is provided on the vertical slide bar 303, and the vertical slide bar 303 is connected to the transmission shaft 2 302 through the rack transmission assembly 2 4; a transmission shaft 1 301 is rotatably connected to the lower mold support plate 101, and the transmission shaft 1 301 vertically penetrates the lower mold support plate 101, and the transmission shaft 1 301 is connected to the transmission shaft 2 302 through a belt transmission assembly 5; the lower mold assembly block 107 is connected to the transmission shaft 1 301 through a rack transmission assembly 3 7.

[0038] In the embodiment of the present invention, when the upper mold mounting plate 103 moves upward, the upper mold mounting plate 103 drives the fixed block 304 to move upward, the fixed block 304 drives the hook block 305 to move upward, the hook block 305 moving upward hooks the fixed hook block 309 and drives the fixed hook block 309 to move upward, the fixed hook block 309 drives the vertical slide bar 303 to move upward, the vertical slide bar 303 moving upward drives the transmission shaft 2 302 to rotate through the rack transmission assembly 24, and the rotating transmission shaft 2 302 is driven by the belt The transmission assembly 5 drives the transmission shaft 1 301 to rotate, and the rotating transmission shaft 1 301 drives the lower mold assembly block 107 to move through the rack transmission assembly 3 7, thereby making the four lower mold assembly blocks 107 move away from each other. When the fixed wedge block 307 contacts the inclined push groove 308 and pushes the hook block 305, the hook block 305 overcomes the elastic force of the spring four 306 and moves away from the fixed hook block 309 until the hook block 305 is no longer in contact with the fixed hook block 309, and the spring 108 pushes the lower mold assembly block 107 to move in the opposite direction and reset.

[0039] like Figure 1-Figure 4 As shown, as a preferred embodiment of the present invention, the rack transmission assembly 2 4 includes a rack 2 402 embedded on the side wall of the vertical slide rod 303 , and one end of the transmission shaft 2 302 is fixedly connected to a gear 2 401 meshing with the rack 2 402 .

[0040] In the embodiment of the present invention, the vertical sliding rod 303 drives the second rack 402 to move upward, the second rack 402 drives the second gear 401 to rotate, and the second gear 401 drives the second transmission shaft 302 to rotate.

[0041] like Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, the rack transmission assembly three 7 includes a mounting groove 701 set at the lower end of the lower mold assembly block 107, a rack three 702 is fixedly connected to the side wall of the mounting groove 701, and a gear three 703 meshing with the rack three 702 is fixedly connected to the upper end of the transmission shaft one 301.

[0042] In the embodiment of the present invention, the transmission shaft 1 301 drives the gear 3 703 to rotate, the gear 3 703 drives the rack 3 702 to move, and the rack 3 702 drives the lower mold assembly block 107 to move.

[0043] like Figure 1-Figure 4As shown, as a preferred embodiment of the present invention, the belt transmission assembly 5 includes a transmission shaft 2 501 rotatably connected to the lower end of the upper mold mounting plate 103, and the transmission shaft 2 501 is transmission-connected to the other end of the transmission shaft 2 302 through a bevel gear transmission assembly 6; the lower ends of the transmission shaft 2 501 and the transmission shaft 1 301 are respectively fixedly connected with pulley 1 502 and pulley 2 503, and the pulley 1 502 and pulley 2 503 are transmission-connected through a belt 504; the bevel gear transmission assembly 6 includes a bevel gear 1 601 and a bevel gear 2 602 fixedly connected on the transmission shaft 2 501 and the transmission shaft 2 302, and the bevel gear 1 601 is meshingly matched with the bevel gear 2 602.

[0044] In the embodiment of the present invention, the transmission shaft 302 drives the bevel gear 602 to rotate, the bevel gear 602 drives the bevel gear 601 to rotate, the bevel gear 601 drives the transmission shaft 501 to rotate, the transmission shaft 501 drives the pulley 502 to rotate, the pulley 502 drives the pulley 2 503 to rotate through the belt 504, the pulley 2 503 drives the transmission shaft 301 to rotate, and vice versa, when the transmission shaft 301 rotates, it can also drive the transmission shaft 302 to rotate.

[0045] like Figure 6 , Fig. 9 and Fig.10 As shown, as a preferred embodiment of the present invention, a correction component 8 is provided on the upper mold 110, and the correction component 8 includes a correction punch 801 fixedly connected to the lower end of the upper mold 110, and the outer contour of the correction punch 801 is consistent with the internal contour of the automobile part, and the four lower mold assembly blocks 107 are all provided with sliding grooves 803, and a sliding block 804 is slidably connected in the sliding groove 803, and a spring three 805 is provided at the lower end of the sliding block 804, and the spring three 805 is located in the sliding groove 803. A correction die assembly block 802 is fixedly connected to the sliding block 804, and when the four correction die assembly blocks 802 are connected, the inner contour thereof is consistent with the outer contour of the automobile part.

[0046] In the embodiment of the present invention, when the upper mold 110 drives the correction punch 801 to move downward, the correction punch 801 cooperates with the four correction die assembly blocks 802 to correct the automobile parts, thereby improving the trimming accuracy of the automobile parts. After the correction of the automobile parts is completed, the correction die assembly block 802 can overcome the elastic force of the spring three 805 and move downward.

[0047] The above embodiment of the present invention provides a self-trimming punching die for automobile parts. When in use, under the pulling force of four springs 108, the four lower die assembly blocks 107 are connected end to end in sequence, and the four lower die assembly blocks 107 are in a mold-closing state to form a lower die. The automobile parts to be trimmed are placed in the four lower die assembly blocks 107, and the external telescopic drive member drives the upper die mounting plate 103 to move downward, and the upper die mounting plate 103 drives the upper die 110 and the cutter 111 to move downward. The side wall of the upper die 110 cooperates with the inner wall of the lower die to trim the automobile parts, and the four cutters 111 cooperate with the lower die assembly block 107 to cut the cut waste into four sections, thereby To prevent waste from being trapped on the side wall of the upper die 110 and being difficult to remove, the external telescopic drive member drives the upper die mounting plate 103 to move upward, and the upper die mounting plate 103 drives the upper die 110 and the cutter 111 to move upward. When the upper die mounting plate 103 moves upward, the upper die mounting plate 103 drives the fixed block 304 to move upward, and the fixed block 304 drives the hook block 305 to move upward. The upwardly moving hook block 305 hooks the fixed hook block 309 and drives the fixed hook block 309 to move upward. The fixed hook block 309 drives the vertical slide bar 303 to move upward, and the vertical slide bar 303 drives the rack 2 402 to move upward, and the rack 2 402 drives the gear 2 401 to rotate, and the gear 2 401 rotates. 1 drives the transmission shaft 2 302 to rotate, the transmission shaft 2 302 drives the bevel gear 2 602 to rotate, the bevel gear 2 602 drives the bevel gear 1 601 to rotate, the bevel gear 1 601 drives the transmission shaft 2 501 to rotate, the transmission shaft 2 501 drives the pulley 1 502 to rotate, the pulley 1 502 drives the pulley 2 503 to rotate through the belt 504, the pulley 2 503 drives the transmission shaft 1 301 to rotate, the transmission shaft 1 301 drives the gear 3 703 to rotate, the gear 3 703 drives the rack 3 702 to move, the rack 3 702 drives the lower die assembly block 107 to move, the four lower die assembly blocks 107 move away from each other, so that the trimmed automotive parts are moved from the four The middle of the lower die assembly block 107 falls into the blanking trough 105, and the material is discharged from the blanking trough 105. When the four lower die assembly blocks 107 move away from each other, the spring 203 pushes the horizontal slide bar 202 to move, the horizontal slide bar 202 drives the rack 1 204 to move, the rack 1 204 drives the gear 1 205 to rotate, the gear 1 205 drives the rotating shaft 112 to rotate, the rotating shaft 112 drives the blanking plate 114 to rotate, the blanking plate 114 rotates out of the sink 113, and then the blanking plate 114 pushes the waste on the lower die assembly block 107 down, thereby realizing automatic unloading of automobile parts after trimming, and automatic cleaning of waste, thereby improving the efficiency of trimming automobile parts.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-trimming punching die for automobile parts, comprising a lower die support plate (101), an upper die mounting plate (103) and a top plate (104), wherein four guide columns (102) are fixedly connected to the lower die support plate (101), the upper die mounting plate (103) is slidably connected to the four guide columns (102), and the top plate (104) is fixed to the upper ends of the four guide columns (102), characterized in that: Also includes: An upper die (110) and a lower die, wherein the upper die (110) is fixedly mounted on the lower end of the upper die mounting plate (103), and cutters (111) are fixedly connected to four side walls of the upper die (110); A blanking trough (105) is provided through the middle of the lower die support plate (101); four guide slide grooves (106) are provided radiating from the center of the blanking trough (105) at the upper end of the lower die support plate (101); the lower die comprises four lower die assembly blocks (107); the four lower die assembly blocks (107) are respectively slidably connected in the four guide slide grooves (106); The lower end of the lower die support plate (101) is fixedly connected to four springs (108), and the ends of the four springs (108) are respectively fixedly connected to four lower die assembly blocks (107). Under the pulling force of the four springs (108), the four lower die assembly blocks (107) are connected end to end in sequence; The lower end of the upper die mounting plate (103) is fixedly connected to four limit wedges (109); the upper ends of the four lower die assembly blocks (107) are each provided with two sinking grooves (113); a blanking plate (114) is each provided in the two sinking grooves (113); the four lower die assembly blocks (107) are each rotatably connected to a rotating shaft (112); and the two rotating shafts (112) are each fixedly connected to the rotating shaft (112); The lower die support plate (101) is provided with a transmission mechanism (3), and when the upper die mounting plate (103) moves upward, the transmission mechanism (3) drives the four lower die assembly blocks (107) to move away from each other; The four lower die assembly blocks (107) are each provided with a rack transmission assembly (2). When the four lower die assembly blocks (107) move away from each other, the rack transmission assembly (2) drives the rotating shaft (112) to rotate, and the rotating shaft (112) drives the blanking plate (114) to rotate out of the sink (113). The rack transmission assembly 1 (2) comprises a slide groove 1 (201) arranged on the lower mold assembly block (107), a transverse slide rod (202) being slidably connected in the slide groove 1 (201), one end of the transverse slide rod (202) extending out of the lower mold assembly block (107), and the other end of the transverse slide rod (202) being connected to a spring 2 (203), and the spring 2 (203) being arranged in the slide groove 1 (201); A rack gear 1 (204) is embedded in the upper end of the transverse sliding rod (202), and a gear gear 1 (205) meshing with the rack gear 1 (204) is fixedly connected to the rotating shaft (112); The transmission mechanism (3) comprises a fixed block (304) fixedly connected to the lower end of the upper mold mounting plate (103), a hook block (305) being laterally slidably connected to the fixed block (304), a spring four (306) being fixedly connected to one end of the hook block (305), and a distal end of the spring four (306) being fixedly connected to a side wall of the fixed block (304); A fixed wedge block (307) is fixedly connected to the lower end of the top plate (104), and an oblique push groove (308) cooperating with the fixed wedge block (307) is provided on the hook block (305); A vertical sliding rod (303) is vertically slidably connected to the lower mold support plate (101), and a fixed hook block (309) is fixedly connected to the side wall of the upper part of the vertical sliding rod (303); The lower end of the lower mold support plate (101) is rotatably connected to a second transmission shaft (302) in a transverse manner, and a second rack transmission assembly (4) is provided on the vertical slide bar (303). The vertical slide bar (303) is connected to the second transmission shaft (302) through the second rack transmission assembly (4). A transmission shaft 1 (301) is rotatably connected to the lower die support plate (101), the transmission shaft 1 (301) vertically penetrates the lower die support plate (101), and the transmission shaft 1 (301) is connected to the transmission shaft 2 (302) via a belt transmission assembly (5); The lower mold assembly block (107) is connected to the transmission shaft one (301) via the rack transmission assembly three (7); The rack transmission assembly 2 (4) comprises a rack 2 (402) embedded in the side wall of the vertical sliding rod (303), and one end of the transmission shaft 2 (302) is fixedly connected to a gear 2 (401) meshing with the rack 2 (402); The rack transmission assembly three (7) comprises a mounting groove (701) arranged at the lower end of the lower mold assembly block (107), a rack three (702) is fixedly connected to the side wall of the mounting groove (701), and a gear three (703) meshing with the rack three (702) is fixedly connected to the upper end of the transmission shaft one (301).

2. The self-trimming punching die for automobile parts according to claim 1, characterized in that: The belt transmission assembly (5) comprises a second transmission shaft (501) rotatably connected to the lower end of the upper mold mounting plate (103), and the second transmission shaft (501) is transmission-connected to the other end of the second transmission shaft (302) via a bevel gear transmission assembly (6); The lower ends of the transmission shaft 2 (501) and the transmission shaft 1 (301) are respectively fixedly connected with a pulley 1 (502) and a pulley 2 (503), and the pulley 1 (502) and the pulley 2 (503) are connected through a belt (504).

3. The self-trimming punching die for automobile parts according to claim 2, characterized in that: The bevel gear transmission assembly (6) comprises a bevel gear one (601) and a bevel gear two (602) which are fixedly connected to the transmission shaft two (501) and the transmission shaft two (302) respectively, and the bevel gear one (601) and the bevel gear two (602) are meshed and matched.

4. The self-trimming punching die for automobile parts according to claim 1, characterized in that: The upper die (110) is provided with a correction component (8), the correction component (8) comprising a correction punch (801) fixedly connected to the lower end of the upper die (110), the outer contour of the correction punch (801) being consistent with the inner contour of the automobile part; The four lower die assembly blocks (107) are each provided with a sliding groove (803), a sliding block (804) is slidably connected in the sliding groove (803), a spring three (805) is provided at the lower end of the sliding block (804), the spring three (805) is located in the sliding groove (803), and a return die assembly block (802; When the four return die assembly blocks (802) are connected, their inner contours are consistent with the outer contours of the automobile parts.

Images