Positioning structure of stamping die

Abstract

The positioning structure comprises a base, a supporting plate is arranged in the middle of one end of the back face of the top of the base, an electric push rod is arranged at the top of the interior of the supporting plate, a mounting plate is arranged at the output end of the electric push rod, and an upper stamping die is arranged at the bottom of the mounting plate. And extrusion rods are arranged on the two sides of the top of the mounting plate, and a lower stamping die is arranged in the middle of the top of the base. According to the device, the two sets of clamping plates are arranged, before punch forming, a material plate is placed on the top of the lower punching die and the top of the punching die core, and when the mounting plate moves downwards, the extrusion rod pushes the two sets of transmission pieces to be close to each other and drives the two sets of clamping plates to be close to each other, so that the material plate is clamped and positioned; the material plate is always located above the stamping die core, deviation of the material plate is avoided when the stamping upper die and the stamping die core are closed, the material plate cannot deviate out of the upper portion of the stamping die core, and the quality of a stamping forming part is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a positioning structure of a stamping die. Background Art

[0002] Cold stamping dies are special tools installed on a press machine to apply deformation force to the sheet metal placed inside at room temperature to deform it, thereby obtaining product parts with certain shapes, sizes and performances. Cold stamping dies are often divided into blanking dies, bending dies, stretching dies and forming dies. At present, cold stamping dies are often positioned and installed on a press machine, and then the sheet metal parts are processed and formed. EI sheets are formed by stamping dies.

[0003] However, there are certain shortcomings in stamping dies:

[0004] 1. When stamping, the existing stamping die places the stamped sheet directly on the stamping die. During the stamping process, the upper die and the lower die are prone to deviation, resulting in displacement between the stamped sheet and the die, causing the sheet to move out of the forming port, which will affect the quality of the stamped parts.

[0005] 2. At the same time, due to the strong impact force of the upper die and the lower die during stamping, the lower die will be worn to a certain extent, resulting in deviations in the size of the molded parts and increasing the failure rate of the molded parts. However, it is inconvenient to quickly replace the lower die. When replacing, the entire die needs to be replaced, which increases the cost. Utility Model Content

[0006] The purpose of the utility model is to provide a positioning structure for a stamping die to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning structure of a stamping die, comprising a base, a support plate is arranged at the middle position of one end of the top back side of the base, an electric push rod is arranged at the top inside the support plate, a mounting plate is arranged at the output end of the electric push rod, a stamping upper die is arranged at the bottom of the mounting plate, extrusion rods are arranged on both sides of the top of the mounting plate, a stamping lower die is arranged at the middle position of the top of the base, positioning components are arranged on both sides of the inside of the stamping lower die, a mounting groove is opened at the middle position of the top of the stamping lower die, a stamping die core is sleeved inside the mounting groove, fixing grooves are opened at the bottom of both ends of the stamping die core, two groups of third springs are arranged at the bottom inside the mounting groove, a top plate is arranged on the top of the third spring, and mounting components are arranged at both ends inside the stamping lower die.

[0008] Preferably, the positioning assembly includes a cavity, a through groove, a first spring, a second spring, a first thorn rack, a clamping plate, a transmission member, a second thorn rack and a rectangular groove, a through groove is provided on one side inside the cavity, a first thorn rack is slidably provided inside the through groove, a first spring is provided on one side of the bottom of the first thorn rack, the bottom of the first spring is fixedly connected to the bottom of the cavity, a clamping plate is slidably provided at the bottom inside the cavity, a second spring is provided on one side of the clamping plate, a rectangular groove is provided at the bottom inside the clamping plate, a second thorn rack is provided on the top inside the rectangular groove, and a transmission member is provided on the side of the clamping plate away from the second spring.

[0009] Preferably, the mounting assembly includes a movable cavity, a rack, a fixed block, a gear and a rotating shaft, a fixed block is slidably provided on one side of the movable cavity, a rack is provided on one side of the fixed block, a rotating shaft is rotatably provided at the top of the movable cavity, a gear is provided at the bottom of the rotating shaft, the rack and the gear are meshed with each other, and a plum blossom groove is provided at the top of the rotating shaft.

[0010] Preferably, one side of the fixing block extends out of the interior of the movable cavity, and the fixing block and the fixing groove are adapted to each other.

[0011] Preferably, the first thorn rack is located inside the rectangular groove, and the first thorn rack is meshed with the second thorn rack.

[0012] Preferably, the transmission member is composed of a wedge block and a cross bar, and the wedge block is located on one side of the top of the cross bar, and the cross bar and the stamping lower die slide relative to each other.

[0013] Preferably, a first groove is provided at the bottom of one side of the cavity, a second groove is opened at one side of the bottom of the cavity, and the first thorn rack and the clamping plate slide inside the first groove and the second groove respectively.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting up two sets of clamping plates, before stamping, the material sheet is placed on the top of the stamping lower die and the stamping die core. While the mounting plate moves downward, the extrusion rod pushes the two sets of transmission parts closer to each other, driving the two sets of clamping plates closer to each other, clamping and positioning the material sheet, so that the material sheet is always above the stamping die core, and there will be no deviation of the material sheet when the stamping upper die and the stamping die core are closed, and the material sheet will not deviate from the top of the stamping die core, thereby ensuring the quality of the stamped parts.

[0016] 2. At the same time, when the stamping die core is being stamped for a long time, there will be certain wear inside the stamping die core. You only need to rotate the rotating shaft to drive the gear to rotate, and move the rack out of the fixed groove through the rack. At this time, the stamping die core can be taken out and replaced separately, without replacing the entire stamping lower die. The steps of replacing the stamping lower die are simplified, the operation is more convenient, and the cost is greatly saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a front cross-sectional view of the clamping plate of the utility model;

[0019] Figure 3 It is a side sectional view of the stamping lower die of the utility model;

[0020] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure of .

[0021] In the figure: 1. base; 2. positioning assembly; 201. cavity; 202. through groove; 203. first spring; 204. second spring; 205. first thorn rack; 206. clamping plate; 207. transmission member; 208. second thorn rack; 209. rectangular groove; 3. mounting assembly; 301. movable cavity; 302. rack; 303. fixed block; 304. gear; 305. rotating shaft; 4. stamping lower die; 5. extrusion rod; 6. stamping upper die; 7. support plate; 8. electric push rod; 9. mounting plate; 10. stamping core; 11. mounting groove; 12. top plate; 13. third spring; 14. fixed groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4The utility model provides an embodiment of a stamping die positioning structure, comprising a base 1, a support plate 7 is arranged at the middle position of one end of the top back of the base 1, an electric push rod 8 is arranged at the top of the support plate 7, a mounting plate 9 is arranged at the output end of the electric push rod 8, a stamping upper die 6 is arranged at the bottom of the mounting plate 9, extrusion rods 5 are arranged on both sides of the top of the mounting plate 9, a stamping lower die 4 is arranged at the middle position of the top of the base 1, positioning components 2 are arranged on both sides of the inside of the stamping lower die 4, a mounting groove 11 is opened at the middle position of the top of the stamping lower die 4, a stamping die core 10 is sleeved inside the mounting groove 11, and fixing grooves 14 are opened at the bottom of both ends of the stamping die core 10, two groups of third springs 13 are arranged at the bottom of the mounting groove 11, a top plate 12 is arranged on the top of the third spring 13, and mounting components 3 are arranged at both ends of the inside of the stamping lower die 4.

[0024] Furthermore, the positioning assembly 2 includes a cavity 201, a through slot 202, a first spring 203, a second spring 204, a first thorn rack 205, a clamping plate 206, a transmission member 207, a second thorn rack 208 and a rectangular slot 209. A through slot 202 is provided on one side inside the cavity 201, a first thorn rack 205 is slidingly provided inside the through slot 202, a first spring 203 is provided on one side of the bottom of the first thorn rack 205, the bottom of the first spring 203 is fixedly connected to the bottom of the cavity 201, a clamping plate 206 is slidingly provided at the bottom inside the cavity 201, a second spring 204 is provided on one side of the clamping plate 206, a rectangular slot 209 is provided on the bottom inside the clamping plate 206, a second thorn rack 208 is provided on the top inside the rectangular slot 209, and a transmission member 207 is provided on the side of the clamping plate 206 away from the second spring 204, so that the material plate can be quickly positioned.

[0025] Furthermore, the mounting assembly 3 includes a movable cavity 301, a rack 302, a fixed block 303, a gear 304 and a rotating shaft 305. A fixed block 303 is slidably arranged on one side of the movable cavity 301, a rack 302 is arranged on one side of the fixed block 303, a rotating shaft 305 is rotatably arranged at the top of the movable cavity 301, a gear 304 is arranged at the bottom of the rotating shaft 305, the rack 302 and the gear 304 are meshed with each other, and a plum blossom groove is arranged on the top of the rotating shaft 305 to facilitate quick replacement of the stamping die core 10.

[0026] Furthermore, one side of the fixing block 303 extends out of the interior of the movable cavity 301 , and the fixing block 303 and the fixing groove 14 are adapted to each other, so that the fixing block has a good fixing effect on the stamping die core 10 .

[0027] Furthermore, the first thorn rack 205 is located inside the rectangular groove 209, and the first thorn rack 205 and the second thorn rack 208 are meshed with each other, so that the clamping plate 206 can only move in the same direction.

[0028] Furthermore, the transmission member 207 is composed of a wedge block and a cross bar, and the wedge block is located on one side of the top of the cross bar, and the cross bar and the stamping lower die 4 slide with each other, driving the clamping plate 206 to move.

[0029] Furthermore, a first groove is provided at the bottom of one side inside the cavity 201, and a second groove is opened at one side of the bottom of the cavity 201. The first thorn rack 205 and the clamping plate 206 slide inside the first groove and the second groove respectively, so that the first thorn rack 205 and the clamping plate 206 are more stable when moving.

[0030] Working principle: First, place the material sheet above the stamping lower die 4 and the stamping die core 10. At this time, turn on the electric push rod 8 to drive the mounting plate 9 to move downward, and the mounting plate 9 drives the two groups of extrusion rods 5 to move downward. The two groups of extrusion rods 5 slide against the bevel of the transmission member 207 in advance, pushing the two groups of transmission members 207 to approach each other, driving the two groups of clamping plates 206 to slide inside the cavity 201 and approach each other, pushing the material sheet to the center of the stamping lower die 4 for positioning, and driving the second thorn rack 20 The beveled edges of the 8 teeth slide with the beveled edges of the teeth on the first thorn rack 205. When the clamping plate 206 clamps the material plate into position, the first thorn rack 205 fixes the second thorn rack 208, so that the clamping plate 206 cannot move away from the stamping core 10. At this time, the stamping upper mold 6 stamps the material plate, presses the first thorn rack 205 downward and separates it from the second thorn rack 208. At this time, under the action of the second spring 204, the clamping plate 206 can be reset.

[0031] When the stamping die core 10 needs to be replaced, the rotating shaft 305 is rotated by a screwdriver to drive the gear 304 to rotate, and the gear 304 drives the rack 302 to move, thereby moving the fixing block 303 out of the fixing groove 14, releasing the fixation of the stamping die core 10. At this time, the two sets of third springs 13 push the stamping die core 10 upward through the top plate 12, so that the upper half of the stamping die core 10 moves out of the installation groove 11, which is convenient for taking out the stamping die core 10.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positioning structure for a stamping die, comprising a base (1), characterized in that: A support plate (7) is provided at the middle position of one end of the top back of the base (1), an electric push rod (8) is provided at the top of the support plate (7), a mounting plate (9) is provided at the output end of the electric push rod (8), a stamping upper die (6) is provided at the bottom of the mounting plate (9), extrusion rods (5) are provided on both sides of the top of the mounting plate (9), a stamping lower die (4) is provided at the middle position of the top of the base (1), and the stamping lower die (4) is provided on both sides. A positioning component (2) is provided, a mounting groove (11) is provided at the middle position of the top of the stamping lower die (4), a stamping die core (10) is sleeved inside the mounting groove (11), fixing grooves (14) are provided at the bottom of both ends of the stamping die core (10), two groups of third springs (13) are provided at the bottom of the mounting groove (11), a top plate (12) is provided on the top of the third spring (13), and mounting components (3) are provided at both ends of the inside of the stamping lower die (4).

2. A positioning structure for a stamping die according to claim 1, characterized in that: The positioning assembly (2) comprises a cavity (201), a through slot (202), a first spring (203), a second spring (204), a first thorn rack (205), a clamping plate (206), a transmission member (207), a second thorn rack (208) and a rectangular groove (209), wherein a through slot (202) is provided on one side of the cavity (201), a first thorn rack (205) is slidably provided inside the through slot (202), a first spring (203) is provided on one side of the bottom of the first thorn rack (205), and a second thorn rack (208) is provided on one side of the bottom of the first thorn rack (205). 3), the bottom of the first spring (203) is fixedly connected to the bottom of the cavity (201), a clamping plate (206) is slidably arranged at the bottom of the cavity (201), a second spring (204) is arranged on one side of the clamping plate (206), a rectangular groove (209) is opened at the bottom of the clamping plate (206), a second thorn tooth bar (208) is arranged at the top of the rectangular groove (209), and a transmission member (207) is arranged on the side of the clamping plate (206) away from the second spring (204).

3. A positioning structure for a stamping die according to claim 1, characterized in that: The mounting assembly (3) comprises a movable cavity (301), a rack (302), a fixed block (303), a gear (304) and a rotating shaft (305); a fixed block (303) is slidably arranged on one side of the movable cavity (301); a rack (302) is arranged on one side of the fixed block (303); a rotating shaft (305) is rotatably arranged at the top of the movable cavity (301); a gear (304) is arranged at the bottom of the rotating shaft (305); the rack (302) and the gear (304) are meshed with each other; and a hexagram groove is arranged at the top of the rotating shaft (305).

4. A positioning structure for a stamping die according to claim 3, characterized in that: One side of the fixing block (303) extends out of the interior of the movable cavity (301), and the fixing block (303) and the fixing groove (14) are adapted to each other.

5. A positioning structure for a stamping die according to claim 2, characterized in that: The first thorn tooth bar (205) is located inside the rectangular groove (209), and the first thorn tooth bar (205) and the second thorn tooth bar (208) are meshed with each other.

6. A positioning structure for a stamping die according to claim 2, characterized in that: The transmission member (207) is composed of a wedge block and a cross bar, wherein the wedge block is located on one side of the top of the cross bar, and the cross bar and the lower stamping die (4) slide relative to each other.

7. A positioning structure for a stamping die according to claim 2, characterized in that: A first groove is provided at the bottom of one side of the cavity (201), and a second groove is opened at one side of the bottom of the cavity (201); the first thorn tooth bar (205) and the clamping plate (206) slide inside the first groove and the second groove respectively.

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