Side punching die structure
By designing the side punching mold structure in the step-by-step automatic production of deep-drawing and step-drawing products is achieved, which solves the problems of product size unstable and additional process mold opening, and reduces cost and manual operation complexity.
Patent Information
- Application Number
- CN202422176321.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-09-05
AI Technical Summary
In the prior art, when producing and processing deep drawing, step drawing and multiple side holes in the circumference, it is difficult to achieve multi-process automated production on a set of molds, resulting in unstable product size and additional processes that require reopening of molds, which increases costs and labor costs.
A side punching mold structure is designed, including oblique cutting board, pressing block, slider and side punching die. Through sliding of the slide and downward pressing of the oblique cutting board, the product stamping forming and side punching are synchronized to avoid additional processes, and the positioning shaft and return spring are used to provide guidance and reset functions.
The product stamping molding and side impact are synchronized, avoiding the occurrence of unqualified products, reducing production costs and manual operation complexity, and improving production efficiency.
Smart Images
Figure CN223197874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of progressive die processing, in particular to a side punch die structure. Background Art
[0002] Progressive dies are a relatively advanced tool in current production processes. They combine single-step dies with multiple dies to achieve automated production across multiple processes. They offer advantages such as high processing quality, high production efficiency, and reduced operator effort, making them a major trend in current mold design development. However, even for products requiring deep drawing, stepped drawing, or multiple side holes around the circumference, such complex products are difficult to achieve using a single set of die sets using progressive dies.
[0003] like Figure 1 As shown in the figure, due to the structural characteristics of the product, there is a body mounting hole on the side of the product, which has high requirements and is very close to the bending edge. During the production process, if the hole is punched first and then bent, the mounting hole will definitely be deformed after bending because it is very close to the bending edge, and the product size will definitely not meet the requirements.
[0004] Currently, similar parts are typically processed by adding an additional step to side punch the product after it's finished. This additional step presents numerous challenges: It requires a new set of molds, which is very expensive. After the parts are finished, they need to be manually transported to another machine for individual punching, resulting in high labor costs and low efficiency.
[0005] In view of this, how to design a new side punch structure in a stamping die has become an urgent problem to be solved in this field. Utility Model Content
[0006] The purpose of the utility model is to provide a side punch die structure which can be used in a progressive die to solve the problem of unstable product size in traditional one-step rolled products.
[0007] The technical solution adopted by the utility model to solve its technical problems is:
[0008] A side punch die structure includes a bevel plate and a press block mounted on an upper die, and a first slider mounted on a lower die. A second slider is slidably connected to one side of the first slider. A side of the second slider is provided with an inclined surface that matches the bevel plate. When the bevel plate is pressed downward, the second slider is pushed to slide along the first slider.
[0009] A side punch die is also installed on the lower die, and the side punch die is located below the pressing block. A side punch head is installed on the side of the second slider close to the side punch die. A through hole is opened on the side of the side punch die close to the side punch head for the side punch head to pass through.
[0010] Furthermore, a positioning shaft is installed in the second sliding block, and the side punch is coaxially fixedly installed on the positioning shaft.
[0011] Furthermore, a positioning block is installed between the second sliding block and the side punch die, and the positioning block is provided with a middle hole to provide guidance for the side punch head.
[0012] Furthermore, it also includes a return spring, which is sleeved on the side punch and located in the area between the second sliding block and the positioning block.
[0013] The beneficial effects of this utility model are as follows: By designing a new side punch structure within the stamping die, this utility model allows for simultaneous stamping and side punching of the product, avoiding the conventional side punching process that results in a large number of substandard products. The utility model has a simple structure, is easy to process, is low in cost, and has good results. (This utility model describes a vehicle body mounting bracket, but the utility model is also applicable to other similar bending products.)
[0014] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the product of the present utility model.
[0016] Figure 2 This is a schematic diagram of the disassembly of the side impact structure of the present utility model.
[0017] Figure 3 It is a three-dimensional structural schematic diagram of the side impact structure of the present utility model.
[0018] Figure 4 This is a schematic diagram of the mold opening of the utility model.
[0019] Figure 5 for Figure 4 A magnified view of the structure in the middle.
[0020] Figure 6 This is a schematic diagram of the closed mold of the utility model. DETAILED DESCRIPTION
[0021] like Figure 2 、 Figure 3 as well as Figure 4 A side punch die structure is shown, in which the upper die 71 includes an upper die base 711, an upper pad 712 and a fixed plate 713 fixed in sequence from top to bottom; a first accommodating cavity for accommodating the upper die screws and the nitrogen spring is provided on the upper die base, and a second accommodating cavity for accommodating the nitrogen spring is correspondingly provided on the upper pad 712 and the fixed plate 713.
[0022] The lower mold 73 includes a lower supporting plate 735, a lower foot 734, a lower mold base 733, a lower pad 732, and a lower mold plate 731 fixed in sequence from bottom to top;
[0023] The mold assembly also includes an upper unloading structure 74 and a lower unloading structure 72. The upper mold unloading structure consists of an upper mold screw 741, a hanging plate 742, and a nitrogen spring 743, while the lower unloading structure 72 consists of a unloading cover plate 721 and a unloading plate 722. The unloading cover plate and the unloading plate are tightly fixed below the fixed plate of the upper mold. The nitrogen spring is placed in the first accommodating cavity of the upper mold base. The lower end surface of the nitrogen spring directly contacts the unloading cover plate 721, providing a pressing force for the upper mold during downward linear motion and a unloading force for the upper mold during upward linear motion. The lower end surface of the nitrogen spring contacts the unloading cover plate when the mold is closed. The upper end of the hanging plate is fastened to the side wall of the fixed plate. The lower hook of the hanging plate hangs the opened unloading plate to prevent it from falling. At the same time, when the mold is opened, there is a gap of 0.5 to 1.0 mm between the lower end surface of the ejector pin and the unloading cover plate, so that the hanging plate is only affected by the gravity of the unloading plate and the unloading cover plate when the mold is opened.
[0024] The side punch structure includes a bevel plate 601 and a press block 602 mounted on the upper die 71, and a first slider 603 mounted on the lower die 73. A second slider 604 is slidably connected to one side of the first slider 603. The side of the second slider 604 is provided with an inclined surface that matches the bevel plate 601. When the bevel plate 601 is pressed down, the second slider 604 is pushed to slide along the first slider 603.
[0025] The lower die 73 is also equipped with a side punch die 608, which is located below the pressure block 602. A side punch head 606 is installed on the side of the second slider 604 near the side punch die 608. A through hole is provided on the side of the side punch die 608 near the side punch head 606 for the side punch head 606 to pass through. A positioning shaft 605 is installed in the second slider 4, and the side punch head 606 is coaxially fixedly mounted on the positioning shaft 605. A positioning block 607 is installed between the second slider 604 and the side punch die 608. The positioning block 607 has a central hole to provide guidance for the side punch head 606. A return spring 609 is also included. The return spring 609 is sleeved on the side punch head 606 and is located in the area between the second slider 604 and the positioning block 607.
[0026] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a specific posture shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0027] When in use, 1. First, as the punch moves downward, the upper die moves downward linearly with the punch as a whole. The pressing block 602 contacts the upper surface of the material strip and moves downward linearly. The pressing block 602 and the side punch die 608 press the bent semi-finished product tightly. At this time, the stripper plate 722 contacts the lower die plate 731. (The nitrogen spring 743 provides the pressing force for the product pressing)
[0028] As the punch press continues to move downward, the bevel 601 continues to move downward following the fixed plate 713, and the lower end bevel of the bevel 601 contacts the upper end bevel of the slider 604, driving the slider 604 to move sideways in the slider 603. Since the side punch 606 is installed in the slider 604, the side punch 606 also moves sideways until it contacts the product, and then works together with the side punch die 608 to complete the side punching of the product. The mold is completely closed, as shown in FIG. Figure 5 shown.
[0029] As the punch press passes the bottom dead center and moves upward, the bevel 601 continues to move upward following the fixed plate 713 and separates from the slider 604. Under the action of the return spring 609, the slider 604 moves back in the slider 603. Since the side punch 606 is installed in the slider 604, the side punch 606 also moves back until it is completely separated from the product.
[0030] As the punch press continues to move upward, the press block 602 separates from the product and the side punch is completed.
[0031] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they all fall within the scope of protection of the present invention.
Claims
1. A side punch die structure, characterized in that : comprising a beveling plate (601) and a pressing block (602) mounted on an upper die (71), and a first slider (603) mounted on a lower die (73), one side of the first slider (603) being slidably connected to a second slider (604), a side of the second slider (604) being provided with an inclined surface matching the beveling plate (601), and when the beveling plate (601) is pressed downward, the second slider (604) is pushed to slide along the first slider (603); A side punch die (608) is also installed on the lower die (73), and the side punch die (608) is located below the pressing block (602). A side punch head (606) is installed on the side of the second slider (604) close to the side punch die (608), and a through hole is opened on the side of the side punch die (608) close to the side punch head (606) for the side punch head (606) to pass through.
2. A side punch die structure according to claim 1, characterized in that: A positioning shaft (605) is installed in the second slider (604), and a side punch (606) is coaxially fixedly installed on the positioning shaft (605).
3. A side punch die structure according to claim 1, characterized in that: A positioning block (607) is installed between the second slider (604) and the side punch die (608). The positioning block (607) is provided with a middle hole to provide a guide for the side punch head (606).
4. A side punch die structure according to claim 1, characterized in that: The utility model further comprises a return spring (609), which is sleeved on the side punch (606) and is located in the area between the second sliding block (604) and the positioning block (607).