A punch die clamping mechanism

Abstract

The utility model relates to a kind of stamping die clamping mechanisms, comprising: stamping die, bottom plate, fixed plate and compression device, the fixed plate is set to the top of bottom plate, the bottom plate is fixedly connected between fixed plate by stiffened plate, the top surface of the fixed plate is provided with two oppositely arranged supports, the stamping die is installed between two supports, the compression device includes pressure head, connecting block and drive mechanism, the support top is provided with first connecting slot, the side of the connecting block is hinged with first connecting slot, the other side of the connecting block is hinged with the middle part of pressure head, the drive mechanism is installed on fixed plate, the output end of the drive mechanism is hinged with pressure head, the drive mechanism drives pressure head to compress or loosen stamping die.The utility model can quickly compress stamping die on fixed plate by the setting of compression device.

Description

Technical Field

[0001] This utility model relates to the field of stamping machine technology, and in particular to a stamping die clamping mechanism. Background Technology

[0002] A stamping press (also known as a press machine) is an industrial equipment that uses a mechanical transmission or hydraulic / pneumatic system to drive a die to apply pressure to metal materials, thereby achieving plastic forming such as cutting, punching, bending, and stretching.

[0003] Currently, the mainstream installation method involves directly fixing the mold to the stamping table with bolts. During installation, the mold position needs to be adjusted first, and then multiple bolts gradually tightened. Throughout this process, the mold position must be kept stable; otherwise, the bolts must be loosened and readjusted, making the operation quite cumbersome. Furthermore, if the bolts are not installed correctly, the connection can easily become loose, and the mold may shift under stamping vibrations. Summary of the Invention

[0004] The purpose of this invention is to provide a stamping die clamping mechanism to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model discloses a stamping die clamping mechanism, comprising: a stamping die, a base plate, a fixed plate, and a clamping device. The fixed plate is disposed above the base plate, and the base plate and the fixed plate are fixedly connected by a stiffening plate. Two opposing supports are disposed on the top surface of the fixed plate, and the stamping die is installed between the two supports. The clamping device includes a pressure head, a connecting block, and a driving mechanism. A first connecting groove is provided on the top of the support. One side of the connecting block is hinged to the first connecting groove, and the other side of the connecting block is hinged to the middle of the pressure head. The driving mechanism is mounted on the fixed plate, and the output end of the driving mechanism is hinged to the pressure head. The driving mechanism drives the pressure head to clamp or release the stamping die.

[0006] Preferably, the driving mechanism includes a first connecting plate, a second connecting plate, and a power device. The power device is installed at the bottom of the fixed plate and is used to drive the first connecting plate to rise or fall. The first connecting plate is horizontally arranged between the base plate and the fixed plate. The first connecting plate is fixedly connected to the two sides near the bracket with the vertically arranged second connecting plate. The top of the second connecting plate is provided with a connecting ear. The side of the press head away from the stamping die is hinged to the connecting ear.

[0007] Preferably, multiple guide posts are provided between the base plate and the fixing plate, and the first connecting plate is provided with guide holes that cooperate with the guide posts.

[0008] Preferably, the power unit is a cylinder or a hydraulic cylinder.

[0009] Preferably, the first connecting plate and the second connecting plate are integrally formed.

[0010] Preferably, a positioning device is provided on the top of the fixing plate.

[0011] Preferably, the positioning device includes multiple reference platforms, which are spaced apart on the top surface of the fixed plate, and the top surface of the reference platform is a reference surface.

[0012] Preferably, five reference platforms are provided, four of which are arranged in a rectangular shape and one is located at the center of the rectangle; a first positioning post is provided on the reference platform located at the center, a second positioning post is provided on one reference platform located at the edge, and auxiliary positioning pins are provided on the three reference platforms located at the edges; the first positioning post is frustum-shaped and the second positioning post is hemispherical.

[0013] Preferably, the reference platform on which the auxiliary positioning pin is installed has a mounting hole, an elastic element is provided in the mounting hole, the auxiliary positioning pin is installed in the mounting hole, the bottom of the auxiliary positioning pin is connected to the elastic element, and the head of the auxiliary positioning pin is hemispherical.

[0014] Preferably, the stamping die has clamping grooves on both sides of its top, and the press head is pressed into the clamping grooves. When the press head clamps the clamping grooves, the top surface of the press head is lower than the top surface of the stamping die. The bottom of the stamping die has a first positioning hole and four second positioning holes. The second positioning holes are rectangularly distributed, and the first positioning hole is located at the center of the rectangle. The first positioning hole cooperates with the first positioning post, and the second positioning hole cooperates with the second positioning post and the auxiliary positioning pin.

[0015] This utility model has the following beneficial effects: 1. This utility model can quickly press the stamping die onto the fixed plate by setting up a pressing device.

[0016] 2. The stamping die can be quickly positioned by setting the first and second positioning posts.

[0017] 3. The positioning speed of stamping dies can be further improved by setting auxiliary positioning pins. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure provided in a specific embodiment of the present utility model.

[0019] Figure 2 This is a front view schematic diagram provided in a specific embodiment of the present utility model.

[0020] Figure 3 This is a top view diagram provided in a specific embodiment of the present utility model.

[0021] Figure 4This is a cross-sectional view of AA provided in a specific embodiment of the present utility model.

[0022] Figure 5 This is a schematic diagram of the overall structure provided in a specific embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of the overall structure of the clamping mechanism provided in a specific embodiment of this utility model.

[0024] Figure 7 This is a top view of the clamping mechanism provided in a specific embodiment of the present utility model.

[0025] Figure 8 This is a cross-sectional view of BB provided in a specific embodiment of the present utility model.

[0026] Figure 9 This is a cross-sectional view of CC provided in a specific embodiment of the present utility model.

[0027] Figure 10 This is a schematic diagram of the overall structure of the clamping mechanism provided in a specific embodiment of this utility model.

[0028] Figure 11 This is a schematic diagram of the overall structure of the stamping die provided in a specific embodiment of this utility model.

[0029] Figure 12 This is a schematic diagram of the overall structure of the stamping die provided in a specific embodiment of this utility model.

[0030] Figure 13 This is a bottom view of the stamping die provided in a specific embodiment of the present utility model.

[0031] Figure 14 This is a cross-sectional schematic diagram of the DD provided in a specific embodiment of this utility model.

[0032] Figure 15 This is a schematic diagram of the pressure head provided in a specific embodiment of the present utility model.

[0033] Explanation of symbols for main components: 110. Base plate; 120. Guide post; 130. First connecting plate; 140. Second connecting plate; 141. Connecting ear; 150. Press head; 152. Press block; 153. First mating groove; 154. Second mating groove; 160. Connecting block; 200. Fixing plate; 210. Bracket; 211. First connecting groove; 220. Base platform; 230. First positioning post; 240. Cylinder; 250. Auxiliary positioning pin; 251. Elastic element; 260. Second positioning post; 300. Stiffening plate; 400. Mold; 410. Clamping groove; 420. First positioning hole; 430. Second positioning hole. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0035] like Figures 1-15 This utility model provides a clamping mechanism for a stamping die 400, including: a stamping die 400, a base plate 110, a fixing plate 200, and a clamping device. The fixing plate 200 is disposed above the base plate 110, and the base plate 110 and the fixing plate 200 are fixedly connected by a stiffening plate 300. Two opposing brackets 210 are provided on the top surface of the fixing plate 200. The stamping die 400 is installed between the two brackets 210. The clamping device includes a pressure head 150, a connecting block 160, and a driving mechanism. A first connecting groove 211 is provided on the top of the bracket 210. One side of the connecting block 160 is hinged to the first connecting groove 211, and the other side of the connecting block 160 is hinged to the middle of the pressure head 150. A second docking groove 154 is provided in the middle of the pressure head 150, and the other end of the connecting block 160 is hinged to the second docking groove 154. The drive mechanism is mounted on the fixed plate 200, and the output end of the drive mechanism is hinged to the pressure head 150. The drive mechanism drives the pressure head 150 to press or release the stamping die 400. A pressure block 152 is provided on the side of the pressure head 150 near the stamping die 400. The pressure block 152 is made of a soft material, such as rubber.

[0036] The stamping die 400 has clamping grooves 410 on both sides of its top. A pressure head 150 is pressed into the clamping grooves 410. When the pressure head 150 clamps the groove, its top surface is lower than the top surface of the stamping die 400, thus preventing interference from the pressure head 150. In other embodiments, clamping grooves 410 can also be formed on all four sides of the top of the stamping die 400. The length of the clamping groove 410 can be equal to the length of the side of the stamping die 400 it is located on.

[0037] like Figure 8The driving mechanism includes a first connecting plate 130, a second connecting plate 140, and a power device. The power device is a cylinder 240, or a hydraulic cylinder can be used. The power device is installed at the bottom of the fixed plate 200 and is used to drive the first connecting plate 130 to rise or fall. The first connecting plate 130 is horizontally set between the base plate 110 and the fixed plate 200. The first connecting plate 130 is fixedly connected to the two sides of the first connecting plate 130 near the bracket 210 with the vertically set second connecting plate 140. The second connecting plate 140 is integrally set with the first connecting plate 130 and rises and falls with the rise and fall of the first connecting plate 130. The top of the second connecting plate 140 is provided with a connecting ear 141. The side of the press head 150 away from the stamping die 400 is provided with a first mating groove 153. The connecting ear 141 is hinged to the first mating groove 153. The rise and fall of the second connecting plate 140 causes one side of the press head 150 to rotate around its hinge point with the connecting block 160.

[0038] like Figure 4 and Figure 8 When the second connecting plate 140 rises, it causes one side of the pressure head 150 to rotate upward around its hinge point with the connecting block 160, while the other side of the pressure head 150 rotates downward. At the same time, the pressure head 150 causes the connecting block 160 to rotate clockwise, ultimately causing the pressure head 150 to press onto the stamping die 400, thus achieving rapid fixation of the stamping die 400.

[0039] Four guide posts 120 are provided between the base plate 110 and the fixing plate 200. The four guide posts 120 are arranged in a rectangular shape. The first connecting plate 130 is provided with guide holes that cooperate with the guide posts 120. Guide sleeves can also be provided in the guide holes to further improve the guiding effect of the guide posts 120.

[0040] like Figure 6 A positioning device is provided on the top of the fixed plate 200. The positioning device includes multiple reference platforms 220, which are spaced apart on the top surface of the fixed plate 200. The top surface of the reference platform 220 is the reference surface, and the bottom surface of the stamping die 400 is in contact with the reference surface to obtain high positioning accuracy.

[0041] like Figures 6-10 Five reference platforms 220 are provided, four of which are rectangularly distributed, and one is located at the center of the rectangle. A first positioning post 230, shaped like a frustum, is provided on the central reference platform 220. One of the four reference platforms 220 located at the four corners of the rectangle is equipped with a second positioning post 260, which is hemispherical or frustum-shaped. The other three reference platforms 220 located at the four corners of the rectangle have mounting holes, in which elastic elements 251 are installed. Auxiliary positioning pins 250 are installed in the mounting holes, with their bottoms connected to the elastic elements 251 and their heads hemispherical.

[0042] like Figures 12-14 The bottom of the stamping die 400 has a first positioning hole 420 and four second positioning holes 430. The second positioning holes 430 are rectangularly distributed, with the first positioning hole 420 located at the center of the rectangle. The first positioning hole 420 mates with the first positioning post 230, and the second positioning holes 430 mate with the second positioning post 260 and the auxiliary positioning pin 250. The engagement of the first positioning hole 420 and the first positioning post 230 restricts the horizontal movement of the stamping die 400, and the engagement of the second positioning hole 430 and the second positioning post 260 restricts the rotation of the stamping die 400. The auxiliary positioning pin 250 and its engagement with the second positioning hole 430 help the stamping die 400 to be quickly positioned. That is, without the auxiliary positioning pin 250, the stamping die 400 may need to rotate multiple times or rotate at a large angle to make the second positioning hole 430 engage with the second positioning post 260. By setting multiple second positioning holes 430 and auxiliary positioning pins 250, the rotation angle or number of rotations of the stamping die 400 during the positioning process can be reduced, thereby achieving rapid positioning of the second positioning holes 430 and the second positioning pins 260.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stamping die clamping mechanism, characterized in that, include: The stamping die includes a base plate, a fixed plate, and a clamping device. The fixed plate is positioned above the base plate, and the base plate and the fixed plate are fixedly connected by a stiffening plate. Two opposing supports are provided on the top surface of the fixed plate, and the stamping die is installed between the two supports. The clamping device includes a pressure head, a connecting block, and a driving mechanism. A first connecting groove is provided on the top of the support. One side of the connecting block is hinged to the first connecting groove, and the other side of the connecting block is hinged to the middle of the pressure head. The driving mechanism is mounted on the fixed plate, and the output end of the driving mechanism is hinged to the pressure head. The driving mechanism drives the pressure head to clamp or release the stamping die.

2. The stamping die clamping mechanism according to claim 1, characterized in that: The driving mechanism includes a first connecting plate, a second connecting plate, and a power device. The power device is installed at the bottom of the fixed plate and is used to drive the first connecting plate to rise or fall. The first connecting plate is horizontally arranged between the base plate and the fixed plate. The first connecting plate is fixedly connected to the two sides near the bracket with the vertically arranged second connecting plate. The top of the second connecting plate is provided with a connecting ear. The side of the press head away from the stamping die is hinged to the connecting ear.

3. The stamping die clamping mechanism according to claim 2, characterized in that: Multiple guide posts are provided between the base plate and the fixing plate, and the first connecting plate has guide holes that cooperate with the guide posts.

4. The stamping die clamping mechanism according to claim 3, characterized in that: The power unit is a cylinder or a hydraulic cylinder.

5. A stamping die clamping mechanism according to claim 2, characterized in that: The first connecting plate and the second connecting plate are integrally formed.

6. The stamping die clamping mechanism according to claim 1, characterized in that: A positioning device is provided on the top of the fixing plate.

7. A stamping die clamping mechanism according to claim 6, characterized in that: The positioning device includes multiple reference platforms, which are spaced apart on the top surface of the fixed plate, and the top surface of the reference platform is the reference surface.

8. A stamping die clamping mechanism according to claim 7, characterized in that: Five reference platforms are provided, four of which are arranged in a rectangular shape and one is located at the center of the rectangle. A first positioning post is provided on the reference platform located at the center, a second positioning post is provided on one reference platform located at the edge, and auxiliary positioning pins are provided on the three reference platforms located at the edges. The first positioning post is frustum-shaped, and the second positioning post is hemispherical.

9. A stamping die clamping mechanism according to claim 8, characterized in that: The reference platform on which the auxiliary positioning pin is installed has an installation hole, and an elastic element is provided in the installation hole. The auxiliary positioning pin is installed in the installation hole, the bottom of the auxiliary positioning pin is connected to the elastic element, and the head of the auxiliary positioning pin is hemispherical.

10. A stamping die clamping mechanism according to claim 9, characterized in that: The stamping die has clamping grooves on both sides of its top. The press head is pressed into the clamping groove. When the press head clamps the clamping groove, the top surface of the press head is lower than the top surface of the stamping die. The bottom of the stamping die has a first positioning hole and four second positioning holes. The second positioning holes are rectangularly distributed. The first positioning hole is located at the center of the rectangle. The first positioning hole cooperates with the first positioning post. The second positioning holes cooperate with the second positioning post and the auxiliary positioning pin.

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