Punching jig with side sliding block

Abstract

The punching jig with the side sliding block comprises an upper die and a lower die, the lower die is provided with at least one punching station groove used for positioning a workpiece to be machined, the side face of each punching station groove is provided with a punching opposite-blade assembly, and each punching opposite-blade assembly comprises blades which can be relatively close to or away from each other; the lower surface of the upper die is provided with an inner supporting head which is matched with the stamping station groove and used for fixing a workpiece to be machined. The upper surface of the lower die is provided with a guide pillar which vertically extends upwards, and the upper die is provided with a guide sleeve which is matched with the guide pillar. According to the punching jig with the side sliding block, square holes in the side faces of products are punched, the problem that the products deform due to external punching force is solved, meanwhile, the punching jig is stable and compact in structure, space is saved, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a jig, and more particularly to a punching jig with a side slider. Background Technology

[0002] There is a type of car part that resembles a birdcage (e.g., 100). Figure 1 As shown, part 100 includes a base plate 103 and two opposing sidewalls 101 extending upward from the base plate 103. The tops of the two sidewalls 101 are connected by a ring arm 102, forming a window below the ring arm 102. During the manufacturing process, burrs 104 are formed on the lower edge of the ring arm 102 and on the base plate 103. However, according to product process requirements, burrs are not allowed in either location, and the roundness of the ring arm 102 has very high process requirements, and deformation is not allowed.

[0003] In existing technologies, because the product is round, it is not easy to place, and the inner cavity is prone to deformation when deburring the window without support. Manual grinding is time-consuming and has very low production efficiency. Therefore, automated deburring is often used, but it has problems such as severe deformation of the ring arm and difficulty in ensuring process requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect that the workpiece to be processed is easily deformed during deburring in the prior art, which cannot meet the product process requirements, and to propose a punching fixture with a side slider.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A punching fixture with a side slider is characterized in that: it includes an upper die and a lower die; the lower die is provided with at least one stamping station groove for positioning the workpiece to be processed; each stamping station groove has a stamping blade alignment assembly on its side, the stamping blade alignment assembly including blades that can be relatively close to or far away from each other; the lower surface of the upper die is provided with an inner support head that cooperates with the stamping station groove for fixing the workpiece to be processed; the upper surface of the lower die is provided with a guide post extending vertically upward, and the upper die is provided with a guide sleeve adapted to the guide post.

[0007] Preferably, each of the stamping blade assembly further includes a slider connecting the blade, and each slider is provided with guide blocks symmetrically on both sides, with the slider sliding within the two guide blocks.

[0008] Preferably, the lower surface of the upper mold is provided with a pair of figure-eight shaped bent pins, and the slider is provided with a guide groove that extends downward from the upper surface, and the longitudinal section of the guide groove is adapted to the bent pins; when the upper mold moves downward relative to the lower mold, the bent pins are inserted downward into the corresponding guide grooves, and the slider moves closer together.

[0009] Preferably, the upper mold includes a lower body and an upper cover. The bottom of the upper cover is provided with a downwardly extending protrusion. The lower body is provided with a receiving groove at a position corresponding to the protrusion. A spring is provided in the receiving groove, and the protrusion passes through the corresponding spring. The bent pin is fixed to the lower surface of the upper cover.

[0010] Preferably, the stamping station slot is provided with a fixing plate for positioning the bottom of the workpiece to be processed.

[0011] Preferably, the lower surface of the upper mold is provided with a limiting post pointing towards the lower mold.

[0012] Preferably, the lower half of the inner support head is provided with a discharge plate, and the lower edge of the inner support head perpendicularly passes through the upper and lower surfaces of the discharge plate. The above technical solution can achieve the following beneficial effects: the punching fixture with side slider in this utility model.

[0013] The beneficial effects of the above technical solution are as follows: The punching fixture with side slider of this utility model realizes the punching of square holes on the side of the product, solves the problem of product deformation due to punching external force, and at the same time, the punching fixture has a stable and compact structure, saves space, and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the part to be processed.

[0015] Figure 2 This is a schematic diagram of the structure of a punching fixture with a side slider in a preferred embodiment of this utility model.

[0016] Figure 3 for Figure 2 A cross-sectional view of a punching fixture with a side slider. Detailed Implementation

[0017] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] like Figure 2 and 3As shown, the punching fixture with side slider in this embodiment includes an upper die 2 and a lower die 1. The lower die 1 is provided with two stamping station slots for positioning the workpiece to be processed. Each stamping station slot has a stamping blade alignment assembly 13 on its side, and the stamping blade alignment assembly 13 includes blades 132 that can be relatively close to or far away from each other. The lower surface of the upper die 2 is provided with an inner support head 28 that cooperates with the stamping station slots for fixing the workpiece to be processed. The upper surface of the lower die 1 is provided with a guide post 12 extending vertically upward, and the upper die 2 is provided with a guide sleeve 27 that is adapted to the guide post 12.

[0020] Each of the stamping blade assembly 13 further includes a slider 134 connecting the blade 132. Each slider 134 has symmetrically arranged guide blocks 131 on both sides, and the slider 134 slides within the two guide blocks 131. The upper die 2 includes a lower body 22 and an upper pressure plate 21. The bottom of the upper pressure plate 21 has a downwardly extending protrusion. The lower body 22 has a receiving groove corresponding to the protrusion, and a spring 23 is provided in the receiving groove. The protrusion passes through the corresponding spring 23.

[0021] The lower surface of the upper pressure cap 21 is provided with a pair of V-shaped bent pins 25, which pass through the upper and lower surfaces of the lower body 22. Meanwhile, the slider 134 is provided with a guide groove 135 extending downwards from its upper surface, and the longitudinal section of the guide groove 135 is adapted to the bent pins 25, forming a V-shape. When the upper mold 2 moves downwards relative to the lower mold 1, the bent pins 25 insert downwards into the corresponding guide grooves 135, thereby driving the slider 134 to move closer together, causing the blades 132 to move closer together for burr cutting.

[0022] Furthermore, to further position the workpiece to be processed, a fixing plate 133 is provided in the stamping station slot for positioning the bottom of the workpiece. The fixing plate 133 cooperates with the inner support head 28 to position the entire workpiece to be processed, especially the ring arm 102 (e.g. Figure 1 As shown, it provides support.

[0023] To prevent excessive pressure on the workpiece during the pressing process, which could cause deformation, a limiting post 26 pointing towards the lower mold 1 is provided on the lower surface of the upper mold 2.

[0024] In addition, a discharge plate 24 is provided in the lower half of the inner support head 28, and the lower edge of the inner support head 28 passes vertically through the upper and lower surfaces of the discharge plate 24.

[0025] In this embodiment, when the punching fixture with side sliders removes burrs, the upper die 2 and lower die 1 close. The slider 134 moves horizontally inward under the action of the bent pin 25. When the stripper plate 24 of the upper die 2 presses against the top of the workpiece, the inner support head 28 of the upper die 2 inserts into the inner cavity of the upper end face of the workpiece, providing support. The punch stops moving when the limiting post 26 of the upper die 2 contacts the guide block 131 of the lower die 2. At this time, the sliders 134 on both sides stop moving horizontally inward under the action of the bent pin 25, completing the punching of the burrs inside the product frame. Through a simple mechanical principle, the punches on the sliders on both sides of the lower die complete the punching of the burrs inside the product frame, while the inner support head 28 and the positioning plate 133 provide support to the inner cavities of the upper and lower end faces of the workpiece, preventing deformation of the workpiece due to the external force of punching and ensuring dimensional accuracy.

[0026] When the upper die 2 moves downward, the bent pin 25 first inserts into the guide groove 135 of the slider 134. The slider 134 slides horizontally inward under the reaction force of the bent pin 25 and the restriction of the guide block 131. During this movement, the inner support head 28 of the upper die 2 first inserts into the inner cavity of the upper end face of the workpiece to be stamped, which plays a supporting role. Then the unloading block 24 presses down on the workpiece to be stamped. The error of the sequence of this action is adjusted by the spring 23 installed in the lower body 22.

[0027] The punching fixture with side slider in this embodiment can punch square holes on the side of the product through simple mechanical principles, solving the problem of product deformation due to punching force. At the same time, the punching fixture has a stable and compact structure, saves space, and improves production efficiency.

[0028] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without adhering to the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A punching jig with a side slider, characterized in that: It includes an upper die and a lower die, the lower die is provided with at least one stamping station slot for positioning the workpiece to be processed, and the side of each stamping station slot is provided with a stamping blade assembly, and the stamping blade assembly includes a blade that can be relatively close or far away; the lower surface of the upper die is provided with an internal support head that cooperates with the stamping station slot and is used to fix the workpiece to be processed; the upper surface of the lower die is provided with a guide column extending vertically upward, and the upper die is provided with a guide sleeve adapted to the guide column.

2. The punching jig with side sliders according to claim 1, characterized in that: Each of the punching blade components also includes a slider connected to the blade, and guide blocks are symmetrically arranged on both sides of each slider, and the slider is slidably arranged in the two guide blocks.

3. The punching jig with side sliders according to claim 2, characterized in that: A pair of figure-eight bending pins are provided on the lower surface of the upper die, and a guide groove is provided on the slider which penetrates downward from the upper surface, and the longitudinal section of the guide groove is adapted to the bending pins; when the upper die moves downward relative to the lower die, the bending pins are inserted downward into the corresponding guide grooves, and the slider moves toward each other.

4. The punching jig with side sliders according to claim 3, characterized in that: The upper mold includes a lower body and an upper pressure cover, the bottom of the upper pressure cover is provided with a downwardly extending boss, the position of the lower body corresponding to the boss is provided with a receiving groove, a spring is provided in the receiving groove, and the boss is inserted into the corresponding spring; the bent pin is fixed to the lower surface of the upper pressure cover.

5. The punching jig with side sliders according to claim 4, characterized in that: A fixing plate for positioning the bottom of the workpiece to be processed is arranged in the stamping station slot.

6. The punching jig with side sliders according to claim 5, characterized in that: The lower surface of the upper die is provided with a limiting column pointing to the lower die.

7. The punching jig with side sliders according to claim 6, characterized in that: A stripping plate is arranged at the lower half of the inner support head, and the lower edge of the inner support head vertically passes through the upper surface and the lower surface of the stripping plate.

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