Anti-deformation precision sheet metal part punching die

Abstract

The utility model relates to a kind of anti-deformation precision sheet metal punching die, belong to sheet metal processing equipment field, including punching assembly, clamping assembly is arranged above the supporting leg, the surface of both sides of the baffle is fixedly connected with small telescopic rod, the output end of small telescopic rod is fixedly connected with side plate, the top of side plate is fixedly connected with clamping plate, the inner side surface of side plate is fixedly connected with extension plate, the side surface of extension plate is slidably connected with square tube, the side surface of bottom plate is fixedly connected in the side surface of supporting leg;By the telescopic adjustment of small telescopic rod, two side plates can be moved synchronously or independently, two positions corresponding small telescopic rod force side plate from both sides of baffle, effectively prevent sheet metal from deviating or deforming when punching due to uneven stress, improve positioning accuracy, realized the beneficial effects of making clamping force more uniform and adaptive clamping to different width metal plate.

Description

Technical Field

[0001] This utility model belongs to the technical field of sheet metal processing equipment, specifically relating to a punching die for anti-deformation precision sheet metal parts. Background Technology

[0002] Traditional sheet metal punching dies often suffer from horizontal displacement or warping deformation of the sheet metal part under the impact force of the punch due to unreasonable positioning structure design. This is especially true for thin precision sheet metal parts, where even slight deformation can cause excessive deviation in punching position, severely affecting product accuracy. Furthermore, the existing die's shock absorption and guiding system lacks precision, leading to radial wobble during punch descent and exacerbating localized stress concentration in the sheet metal part. Poor chip removal from the blanking hole can cause waste accumulation, resulting in secondary deformation due to reverse compression of the sheet metal surface. In addition, traditional dies have poor versatility, requiring frequent die changes for different specifications of precision sheet metal parts. This not only increases production costs but also further reduces processing stability due to positioning errors during die changes, making it difficult to meet the demands of modern manufacturing for efficient and high-precision punching of precision sheet metal parts.

[0003] Patent publication number CN220717434U discloses a sheet metal punching die, relating to the field of sheet metal processing technology. It includes a lower die and an upper die. The lower die includes an mounting section and a stamping section. The mounting section is equipped with a limiting roller and a blanking plate. The stamping section is equipped with a limiting block, a blanking hole, and a scrap hole. The blanking hole passes through the stamping section and the mounting section sequentially and is located above the inclined blanking plate. A collection box is movably arranged inside the stamping section, located below the scrap hole. The upper die is equipped with a limiting groove, a punch, and a punch head. The limiting block cooperates with the limiting groove, the punch cooperates with the blanking hole to cut the sheet metal part, and the punch cooperates with the scrap hole to punch the sheet metal part. This device can complete the segmented cutting and punching of long sheet metal sections on the punching die itself, eliminating the need for transfer processing between two locations. This saves transfer time and improves work efficiency. After processing, the punching scrap is stored separately from the small sheet metal sections, eliminating the need for material sorting.

[0004] If the above-mentioned patent requires processing sheet metal parts of different shapes, the lower template needs to be replaced, which increases the mold cost and mold change time. At the same time, the punch is directly set at the bottom of the upper template. If the punch is worn or needs to be replaced with a punch of a different specification, the upper template needs to be completely disassembled, which is cumbersome and affects the mold change efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a punching die for anti-deformation precision sheet metal parts.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a precision sheet metal punching mold for preventing deformation, including a punching assembly, the punching assembly including a support leg, a clamping assembly provided above the support leg, the clamping assembly including a base plate, a baffle plate fixedly connected to the upper surface of the base plate, small telescopic rods fixedly connected to both sides of the baffle plate, a side plate fixedly connected to the output end of the small telescopic rods, a clamping plate fixedly connected to the top of the side plate, an extension plate fixedly connected to the inner surface of the side plate, a square tube slidably connected to the side surface of the extension plate, and a side surface of the base plate fixedly connected to the side surface of the support leg.

[0007] In some embodiments, the lower surface of the square tube is fixedly connected to the upper surface of the barrier plate at its center. Two small telescopic rods are provided, positioned correspondingly, with their ends fixedly connected to both sides of the barrier plate. Through the telescopic adjustment of these small telescopic rods, the two side plates can move synchronously or independently. The two corresponding small telescopic rods apply force to the side plates from both sides of the barrier plate, effectively preventing the sheet metal parts from shifting or deforming due to uneven force during punching. This improves positioning accuracy and achieves the beneficial effects of more uniform clamping force and adaptive clamping of metal plates of different widths.

[0008] In some embodiments, a support frame is fixedly connected to the side surface of the support leg, and the lower surface of the top plate is fixedly connected to the top of the support frame. The support frame connects the support leg and the top plate into a whole, enhancing the stability and rigidity of the overall mold structure, dispersing the force on the top plate, and preventing the top plate from bending and deforming due to excessive force.

[0009] In some embodiments, a mounting hole is provided on the upper surface of the top plate, and a large electric telescopic rod is fixedly connected to the inner wall of the mounting hole. A mounting plate is fixedly connected to the output end of the large electric telescopic rod. The mounting hole provides a stable mounting position for the large electric telescopic rod, preventing it from swaying or shifting during operation and ensuring stable output force. The large electric telescopic rod is connected to a punching head via the mounting plate, allowing precise control of the punching head's stroke and achieving accurate control of the punching depth, thus improving punching accuracy and consistency.

[0010] In some embodiments, a connecting plate is movably connected to the lower surface of the mounting plate, and a punch head is fixedly connected to the lower surface of the connecting plate. The movable connection between the mounting plate and the connecting plate facilitates quick replacement of the punch head, adapting to the punching needs of different sized sheet metal parts without requiring replacement of the entire punching assembly, thus reducing operating costs. Simultaneously, it buffers the impact force of punching, reducing damage to the punch head and mounting plate, thereby improving the versatility and flexibility of the mold and extending its service life.

[0011] In some embodiments, a reinforcing frame is fixedly connected to the end side surface of the large electric telescopic rod, and the top of the reinforcing frame is fixedly connected to the lower surface of the top plate. The reinforcing frame enhances the connection strength between the large electric telescopic rod and the top plate, resists the torque and lateral force generated during its extension and retraction, prevents the electric telescopic rod from tilting and swaying, ensures the vertical movement of the punch head, improves the punching position accuracy and verticality, and reduces deformation and scrap of sheet metal parts caused by punch head misalignment.

[0012] The scope of this utility model is not limited to technical solutions formed by specific combinations of the above-mentioned technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-mentioned technical features or their equivalent features. For example, technical solutions formed by substituting the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] 1. This anti-deformation precision sheet metal punching die allows the two side plates to move synchronously or independently through the telescopic adjustment of small telescopic rods. The small telescopic rods at the two corresponding positions apply force to the side plates from both sides of the barrier plate, effectively preventing the sheet metal parts from shifting or deforming due to uneven force during punching, improving positioning accuracy, and achieving the beneficial effects of making the clamping force more uniform and adaptive clamping of metal plates of different widths.

[0015] 2. This anti-deformation precision sheet metal punching die, through the movable connection between the mounting plate and the connecting plate, facilitates quick replacement of the punching head, adapts to the punching needs of sheet metal parts of different specifications, eliminates the need to replace the entire punching assembly, reduces usage costs, and at the same time can buffer the punching impact force, reduce damage to the punching head and mounting plate, thereby achieving the beneficial effects of improving the versatility and flexibility of the die and extending its service life. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a precision sheet metal punching die to prevent deformation;

[0017] Figure 2 A side view of the structure of a precision sheet metal punching die to prevent deformation;

[0018] Figure 3 Precision sheet metal punching dies to prevent deformation Figure 2 Enlarged view of part A in the image;

[0019] Figure 4 A rear view structural diagram of a precision sheet metal punching die designed to prevent deformation;

[0020] Figure 5 A structural schematic diagram of a precision sheet metal punching die to prevent deformation, viewed from below.

[0021] The components include: 1. Punching assembly; 101. Support leg; 102. Support frame; 103. Top plate; 104. Mounting hole; 105. Large electric telescopic pole; 106. Mounting plate; 107. Connecting plate; 108. Punching head; 109. Reinforcing frame; 2. Clamping assembly; 201. Base plate; 202. Barrier plate; 203. Small telescopic pole; 204. Side plate; 205. Clamping plate; 206. Square tube; 207. Extension plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figures 1 to 5 The diagram shows a precision sheet metal punching die for deformation prevention, comprising a punching assembly 1, which includes a support leg 101. A clamping assembly 2 is disposed above the support leg 101, and the clamping assembly 2 includes a base plate 201. A barrier plate 202 is fixedly connected to the upper surface of the base plate 201. Small telescopic rods 203 are fixedly connected to both sides of the barrier plate 202. A side plate 204 is fixedly connected to the output end of the small telescopic rods 203. A clamping plate 205 is fixedly connected to the top of the side plate 204. An extension plate 207 is fixedly connected to the inner surface of the side plate 204. A square tube 206 is slidably connected to the side surface of the extension plate 207. The side surface of the base plate 201 is fixedly connected to the side surface of the support leg 101. The center of the lower surface of the square tube 206 is fixedly connected to the upper surface of the barrier plate 202. There are two small telescopic rods 203, which are positioned correspondingly, and the ends of the two small telescopic rods 203 are fixedly connected to both sides of the barrier plate 202.

[0024] In this embodiment, when punching is required on a sheet metal part, the sheet metal part is placed on the square tube 206. Subsequently, the small telescopic rod 203 is activated and extended, causing the side plates 204 on both sides to move closer to the sheet metal part. During the movement of the side plates 204, the extension plate 207 slides along the inner wall of the square tube 206. Since the square tube 206 is fixed on the barrier plate 202, this sliding action, in conjunction with the movement of the square plate 204, guides the side plates 204, ensuring that the side plates 204 always maintain a stable horizontal movement. When the side plates 204 move to contact the sides of the sheet metal part, the clamping plate 205, driven by the side plates 204, provides auxiliary clamping for the sheet metal part from above, thereby firmly fixing the sheet metal part to the base plate 201, preventing displacement or deformation during the punching process, and providing a stable positioning base for subsequent punching operations.

[0025] like Figures 1 to 5 As shown, a support frame 102 is fixedly connected to the side surface of the support leg 101, and the lower surface of the top plate 103 is fixedly connected to the top of the support frame 102.

[0026] In this embodiment, the support leg 101 provides bottom support for the entire mold, ensuring the overall stability of the mold during operation. The support frame 102 connects the support leg 101 and the top plate 103 into a stable integral structure. During punching operations, the top plate 103 is subjected to a downward force from the large electric telescopic rod 105. The support frame 102 can transfer this force to the support leg 101 and further distribute it to the ground, preventing the top plate 103 from bending or shaking due to excessive force, thereby ensuring that the punching-related components connected below the top plate 103 can work stably.

[0027] like Figures 1 to 5 As shown, in this embodiment, an installation hole 104 is provided on the upper surface of the top plate 103, a large electric telescopic rod 105 is fixedly connected to the inner wall of the installation hole 104, and an installation plate 106 is fixedly connected to the output end of the large electric telescopic rod 105.

[0028] In this embodiment, the mounting hole 104 provides a stable mounting position for the large electric telescopic rod 105, allowing it to be firmly fixed to the top plate 103. During punching operations, the large electric telescopic rod 105 is activated, its output end extending downwards, causing the mounting plate 106 and the components connected below it to move downwards together. By controlling the extension and retraction of the output end of the large electric telescopic rod 105, the downward distance of the mounting plate 106 can be precisely controlled, thereby controlling the punching depth of the punching head 108 on the sheet metal parts to meet the punching requirements of different sheet metal parts.

[0029] like Figures 1 to 5 As shown, in this embodiment, a connecting plate 107 is movably connected to the lower surface of the mounting plate 106, and a punching head 108 is fixedly connected to the lower surface of the connecting plate 107.

[0030] In this embodiment, when the mounting plate 106 moves downward under the drive of the large electric telescopic rod 105, it transmits the motion to the connecting plate 107 through a movable connection, thereby driving the punch head 108 to move downward. When the punch head 108 contacts the sheet metal part, it completes the punching action on the sheet metal part under the driving force of the large electric telescopic rod 105. Since the mounting plate 106 and the connecting plate 107 are movably connected, when it is necessary to replace the punch head 108 of different specifications to adapt to the punching requirements of different sizes, the connecting plate 107 can be easily removed from the mounting plate 106, replaced with a connecting plate 107 with the corresponding punch head 108, and then reconnected. The operation is simple and convenient.

[0031] like Figures 1 to 5 As shown, in one aspect of this embodiment, a reinforcing frame 109 is fixedly connected to the end side surface of the large electric telescopic pole 105, and the top of the reinforcing frame 109 is fixedly connected to the lower surface of the top plate 103.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] Working principle: When punching is required on sheet metal parts, the sheet metal parts are first placed on the square tube 206 to be processed. Then, the small telescopic rod 203 in the clamping assembly 2 is activated and extended, driving the side plates 204 on both sides to move closer to the sheet metal parts. During this process, the extension plate 207 on the inner side of the side plate 204 slides along the inner wall of the square tube 206 fixed on the barrier plate 202, which plays a stabilizing and guiding role in the movement of the side plate 204, ensuring that the side plate 204 moves smoothly and horizontally until the side plate 204 contacts the sides of the sheet metal parts. At the same time, the clamping plate 205 on the top of the side plate 204 provides auxiliary clamping for the sheet metal parts from above, firmly fixing the sheet metal parts and providing a stable foundation for punching. Next, the large electric telescopic rod 105, fixed to the top plate 103 via the mounting hole 104, is activated. Its output end extends downward, driving the mounting plate 106, the connecting plate 107 movably connected below the mounting plate 106, and the punch head 108 downward together. At this time, the reinforcing frame 109 connected to the end side surface of the large electric telescopic rod 105 provides auxiliary support, resisting the lateral forces and torques generated during operation, and ensuring the vertical and stable movement of its output end. When the punch head 108 contacts the sheet metal part, the punching action is completed under the driving force of the large electric telescopic rod 105. The punching depth can be precisely controlled by controlling the extension and retraction of the output end of the large electric telescopic rod 105. Throughout the process, the support leg 101 provides bottom support for the mold, and the support frame 102 connects the support leg 101 to the top plate 103 into a stable whole, ensuring the stable operation of each component. If a different specification of punch head 108 needs to be replaced, simply remove the connecting plate 107 from the mounting plate 106 for replacement.

[0034] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A precision sheet metal punching die for deformation-resistant parts, comprising a punching assembly (1), characterized in that: The punching assembly (1) includes a support leg (101), and a clamping assembly (2) is provided above the support leg (101). The clamping assembly (2) includes a base plate (201), a barrier plate (202) is fixedly connected to the upper surface of the base plate (201), and small telescopic rods (203) are fixedly connected to both sides of the barrier plate (202). A side plate (204) is fixedly connected to the output end of the small telescopic rod (203). A clamping plate (205) is fixedly connected to the top of the side plate (204). An extension plate (207) is fixedly connected to the inner surface of the side plate (204). A square tube (206) is slidably connected to the side surface of the extension plate (207). The side surface of the base plate (201) is fixedly connected to the side surface of the support leg (101).

2. The anti-deformation precision sheet metal punching die according to claim 1, characterized in that: The lower surface of the square tube (206) is fixedly connected to the upper surface of the barrier plate (202) at the center. There are two small telescopic rods (203) and their positions correspond to each other. The ends of the two small telescopic rods (203) are fixedly connected to the two sides of the barrier plate (202).

3. The anti-deformation precision sheet metal punching die according to claim 1, characterized in that: The support leg (101) is fixedly connected to the side surface of the support frame (102), and the top of the support frame (102) is fixedly connected to the lower surface of the top plate (103).

4. The anti-deformation precision sheet metal punching die according to claim 3, characterized in that: The top plate (103) has an installation hole (104) on its upper surface. A large electric telescopic rod (105) is fixedly connected to the inner wall of the installation hole (104). An installation plate (106) is fixedly connected to the output end of the large electric telescopic rod (105).

5. The anti-deformation precision sheet metal punching die according to claim 4, characterized in that: A connecting plate (107) is movably connected to the lower surface of the mounting plate (106), and a punch head (108) is fixedly connected to the lower surface of the connecting plate (107).

6. The anti-deformation precision sheet metal punching die according to claim 4, characterized in that: The large electric telescopic pole (105) is fixedly connected to a reinforcing frame (109) on the end side surface, and the top of the reinforcing frame (109) is fixedly connected to the lower surface of the top plate (103).

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