Stamping die with split type punch positioning structure

Abstract

The utility model discloses a stamping die with a split type punch positioning structure, which comprises an upper die capable of moving up and down and a lower die fixed below the upper die, a punching mechanism is mounted on the bottom side of the upper die and comprises a punch, the punch comprises a rod-shaped main body and a tool bit positioned at the tail end of the main body, and the diameter of the tool bit is smaller than that of the main body. A punch positioning assembly used for guiding and positioning during punching of the punch is installed between the upper die and the lower die and comprises a first guiding piece used for positioning the body and a second guiding piece used for positioning the tool bit, and the first guiding piece and the second guiding piece are installed in a spliced mode. According to the stamping die with the split type punch positioning structure, an integrated positioning mechanism is replaced by the split type assembled punch positioning assembly, the positioning assembly can be formed in a simpler and more efficient machining mode, the machining precision can be greatly improved, and therefore it is guaranteed that a gap between a guide hole and a punch is smaller, and the punching quality is improved. And positioning is more accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch technology field especially relates to a stamping die with split type punch positioning structure. BACKGROUND

[0002] In the connector production process, the terminal is as the important component for completing the electric signal transmission in the connector, and its use amount is very huge. In the terminal production process, the step distance is often small, and the terminal has special requirements, so the punching and cutting blanking must be increased. The punching and cutting guide parts in the conventional stamping die are generally integral parts, which are processed by electric spark cutting or optical grinding. Due to the process problem, the distance of the guide positioning section of the part is limited, the guide punch cannot be effectively positioned when the punch is unevenly stressed, the punch is often broken, the production efficiency is directly reduced, the maintenance frequency is increased, and the small product cannot be found in time, so that the product is easily produced as defective products.

[0003] Therefore, in combination with the above-mentioned technical problems, it is necessary to provide a new technical scheme. INVENTION CONTENTS

[0004] The utility model discloses a kind of stamping dies with split type punch positioning structure, which can effectively position guide punch, improve production efficiency, and structure stable can reduce maintenance frequency.

[0005] To solve the above technical problems, the utility model provides a kind of stamping die with split type punch positioning structure, and the specific technical scheme is as follows:

[0006] A kind of stamping die with split type punch positioning structure, including the upper die that can move up and down and the lower die fixed in the lower die of upper die, punch mechanism is installed on the bottom side of upper die, and punch mechanism includes punch, and punch includes the main body of rod and the cutter head at the end of main body, cutter head diameter is less than main body diameter, punch positioning assembly for guiding and positioning when punch is cut is installed between upper die and lower die, and the punch positioning assembly includes the first guide for positioning main body and the second guide for positioning cutter head, which are installed by mutual splicing, the splicing end of first guide and second guide is respectively equipped with the convex and the groove of dovetail shape that is matched with each other.

[0007] Preferably, first guide hole is formed in the first guide, second guide hole is formed in the second guide, and the diameter of the first guide hole is matched with the diameter of the main body, the diameter of the second guide hole is greater than the outer diameter of the cutter head and less than the diameter of the first guide hole.

[0008] Preferably, a middle die assembly is provided between the upper die and the lower die, and the middle die assembly includes a stop plate and a stripper plate fixed on the bottom side of the stop plate, and the punch positioning assembly is installed on and passes through the stripper plate, and the stop plate is provided with an avoidance hole adapted to the punch positioning assembly to facilitate the punch to pass through the stop plate and cooperate with the punch positioning assembly.

[0009] Preferably, an upper die seat is fixedly provided on the bottom side of the upper die, and the punching mechanism further comprises a fixing seat, which is fixedly installed in the upper die seat, and an end of the main body away from the cutter head is detachably fixed in the fixing seat.

[0010] Preferably, a lower die base is fixedly provided on the upper side of the lower die, and a cutting edge is installed on the lower die base, and the position of the cutting edge is on the same vertical line as the cutting head of the punch.

[0011] Preferably, the upper die is installed in a punch press and moves up and down when driven by the punch press.

[0012] The punching die with a split punch positioning structure of the utility model has the following beneficial effects:

[0013] The punch die with a split punch positioning structure of the utility model replaces the integrated positioning mechanism with a split assembled punch positioning component, so that the positioning component can be formed using a simpler and more efficient processing method, and its processing accuracy can also be greatly improved, thereby ensuring a smaller gap between the guide hole and the punch, more accurate positioning, more stable and less prone to damage during guide movement, reducing maintenance frequency and improving processing efficiency;

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of a stamping die with a split punch positioning structure;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the middle punch positioning assembly.

[0019] Wherein, 1 - upper die; 11 - upper die holder; 2 - lower die; 21 - lower die holder; 211 - knife edge; 3 - punch positioning assembly; 31 - first guide; 311 - first guide hole; 32 - second guide; 321 - second guide hole; 4 - punching mechanism; 41 - punch; 411 - main body; 412 - cutter head; 42 - fixed seat; 5 - stop plate; 6 - stripper plate. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. EMBODIMENT

[0021] Please refer to Figures 1 to 3 , a stamping die with split punch positioning structure, comprising upper die 1 and lower die 2 that can move up and down, the upper die is installed with punching mechanism 4 on the bottom side, the punching mechanism comprises punch 41, the punch comprises rod-shaped main body 411 and cutter head 412 at the end of the main body, the diameter of the cutter head is smaller than the diameter of the main body, the punch positioning assembly 3 for guiding and positioning when the punch is punched is installed between the upper die and the lower die, the punch positioning assembly comprises first guide 31 and second guide 32 for positioning the main body and the cutter head respectively, the spliced ends of the first guide and the second guide are respectively provided with dovetail-shaped protrusions and grooves that match each other.

[0022] The first guide 31 is provided with a first guide hole 311, and the second guide is provided with a second guide hole 321 parallel to and communicating with the first guide hole, the diameter of the first guide hole is matched with the diameter of the main body 411, and the diameter of the second guide hole is greater than the outer diameter of the cutter head 412 and smaller than the diameter of the first guide hole.

[0023] The upper die 1 and the lower die 2 are provided with a middle die assembly, the middle die assembly comprises a stop plate 5 and a stripper plate 6 fixed on the bottom side of the stop plate, the punch positioning assembly 3 is installed on the stripper plate and penetrates through the stripper plate, the stop plate is provided with a clearance hole matched with the punch positioning assembly to facilitate the punch 41 to pass through the stop plate and cooperate with the punch positioning assembly.

[0024] The bottom side of the upper die 1 is fixedly provided with an upper die holder 11, the punching mechanism 4 further comprises a fixed seat 42, the fixed seat is fixedly installed in the upper die holder, and the end of the main body 411 away from the cutter head is detachably fixed in the fixed seat.

[0025] The lower die seat 21 is fixed on the lower die upper side, and a knife edge 211 is installed on the lower die seat.

[0026] The upper die 1 is installed in a punch and moves up and down under the drive of the punch.

[0027] In use, the upper die 1 is driven by the punch to make the punch 41 press down, and the punch and the knife edge 211 cooperate to punch, then the upper die rises, the punch retracts into the punch positioning assembly in the stripper plate to complete the stripping. The punch positioning assembly is assembled by the first guide and the second guide, and the two guide holes matched with the main body and the punch head are respectively opened in the punch. Compared with the integrated positioning assembly, the guide hole can be processed by a simpler and more accurate drilling and milling method, and the precision is higher. Only the two are matched by the dovetail mortise structure in use, the gap between the punch and the guide hole can be smaller, the positioning is more accurate, and the punch is not easy to shift and shake during the up and down movement, so as to prevent damage.

[0028] The beneficial effects of the utility model are: the punch positioning assembly assembled in a split mode is used to replace the integrated positioning mechanism, the positioning assembly can be formed by a simpler and more efficient processing method, the processing precision is greatly improved, the gap between the guide hole and the punch is smaller, the positioning is more accurate, the guide movement is more stable and not easy to damage, the maintenance frequency is reduced, and the processing efficiency is improved.

[0029] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A stamping die with a split punch positioning structure, characterized in that: The invention comprises an upper die (1) which can move up and down and a lower die (2) which is fixed below the upper die. A punching mechanism (4) is installed on the bottom side of the upper die. The punching mechanism comprises a punch (41). The punch comprises a rod-shaped main body (411) and a cutter head (412) located at the end of the main body. The diameter of the cutter head is smaller than the diameter of the main body. A punch positioning assembly (3) for guiding and positioning the punch during punching is installed between the upper die and the lower die. The punch positioning assembly comprises a first guide member (31) for positioning the main body and a second guide member (32) for positioning the cutter head, which are spliced ​​and installed with each other. The spliced ​​ends of the first guide member and the second guide member are respectively provided with mutually matching dovetail-shaped protrusions and grooves.

2. The stamping die with a split punch positioning structure according to claim 1, characterized in that: A first guide hole (311) is provided in the first guide member (31), and a second guide hole (321) is provided in the second guide member that is parallel to and connected to the first guide hole. The diameter of the first guide hole matches the diameter of the main body (411), and the diameter of the second guide hole is larger than the outer diameter of the cutter head (412) and smaller than the diameter of the first guide hole.

3. The stamping die with a split punch positioning structure according to claim 2, characterized in that: A middle die assembly is provided between the upper die (1) and the lower die (2), and the middle die assembly includes a stop plate (5) and a stripper plate (6) fixed to the bottom side of the stop plate. The punch positioning assembly (3) is mounted on and passes through the stripper plate. The stop plate is provided with an avoidance hole adapted to the punch positioning assembly so that the punch (41) passes through the stop plate and cooperates with the punch positioning assembly.

4. The stamping die with a split punch positioning structure according to claim 1, characterized in that: An upper die seat (11) is fixedly provided on the bottom side of the upper die (1), and the punching mechanism (4) further comprises a fixing seat (42) fixedly mounted in the upper die seat, and an end of the main body (411) away from the cutter head is detachably fixed in the fixing seat.

5. The stamping die with a split punch positioning structure according to claim 1, wherein: A lower die base (21) is fixedly provided on the upper side of the lower die, and a cutting edge (211) is mounted on the lower die base. The position of the cutting edge is on the same vertical line as the cutting head (412) of the punch.

6. The stamping die with a split punch positioning structure according to claim 1, characterized in that: The upper die (1) is installed in a punch press and moves up and down when driven by the punch press.

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