Two-way cutting mechanism for a punch-die

Abstract

The utility model provides a kind of stamping die bidirectional cutting mechanism, including upper die holder, lower die holder, first lateral cutting component and second lateral cutting component, upper die holder is set in the top of lower die holder, first lateral cutting component includes base, slide rail, first nitrogen gas spring, punching slide block, punch head, punching plate and driving block, the right end of punching slide block is equipped with with vertical direction inclination driving slope, driving slope is towards top, driving block upper end is fixed on upper die holder, the lower end of driving block left and right sides is equipped with second wear block and third wear block respectively, the left end surface of second wear block is in contact with driving slope, the right end surface of third wear block is in contact with the left end surface of first wear block, the advantage of the design is that, by driving block driving punching slide block and punch head complete punching action by being set driving block in upper die holder, its cost is cheap, compact structure, can effectively reduce mould cost, and can simultaneously punch both sides to workpiece, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping die structure, and in particular to a bidirectional cutting mechanism for stamping dies. Background Technology

[0002] Currently, cold pressing dies are widely used in the production of various housing parts for automobiles. For some complex housings, during continuous cold pressing, it is also necessary to perform lateral stamping on the workpiece to remove material and form holes, slots, etc. This is typically done using cylinders or hydraulic cylinders to drive the stamping head and cut the workpiece from the side. However, using cylinders or hydraulic cylinders is not only expensive but also requires a large installation space. Therefore, when both sides of the workpiece need to be laterally cut, in order not to increase the overall width of the continuous stamping die, two cutting stations must be set up to cut the two sides separately. This method is not only inefficient but also increases the length of the continuous stamping die due to the increased number of stations, thus increasing manufacturing costs. Therefore, it is necessary to develop a bidirectional cutting mechanism for stamping dies to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a bidirectional cutting mechanism for stamping dies to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A bidirectional cutting mechanism for a stamping die includes an upper die base, a lower die base, a first lateral cutting assembly, and a second lateral cutting assembly. The upper die base is positioned above the lower die base. The first lateral cutting assembly includes a base, a slide rail, a first nitrogen spring, a cutting slide block, a cutting head, a cutting plate, and a drive block. The base is fixed above the upper die base. The left and right sides of the base are respectively provided with upwardly protruding cutting bosses and limiting bosses. A mounting plane is provided in the middle of the upper part of the base. The slide rail is fixed on the mounting plane. The lower end of the cutting slide block is slidably connected to both the slide rail and the mounting plane. The first nitrogen spring is fixed on the base, and its elastic extension end is fixedly connected to the lower end of the cutting slide block. The cutting head is fixed to the left end of the cutting slide block, and the cutting plate is fixed to the cutting slide block. The boss corresponds to the punching head, and the base is provided with a punching through hole. The punching through hole passes through the punching boss and the punching plate. The left end of the punching head is inserted into the punching through hole. The left end of the limiting boss is vertically fixed with a first wear-resistant block. The right end of the punching slider is provided with a driving slope inclined to the vertical direction, with the driving slope facing upward. The upper end of the driving block is fixed on the upper mold base. The lower end of the driving block is provided with a second wear-resistant block and a third wear-resistant block on the left and right sides respectively. The left end face of the second wear-resistant block contacts the driving slope, and the right end face of the third wear-resistant block contacts the left end face of the first wear-resistant block. The structure of the second lateral cutting assembly is symmetrical to the structure of the first lateral cutting assembly. The second lateral cutting assembly is fixedly set on the left side of the first lateral cutting assembly.

[0006] Further description of this utility model: It also includes an automatic lifting component, which includes a fixed block, a movable block, a second nitrogen spring, a lifting platform, and a guide post. Two sets of fixed blocks are provided and fixed on the front and rear sides of the lower mold base respectively. The lower end of the second nitrogen spring is fixed on the fixed block. The movable block is provided above the fixed block and fixed to the elastic extension end of the second nitrogen spring. The front and rear ends of the lifting platform are fixed on the two sets of movable blocks respectively. The lifting platform corresponds to the middle and upper part of the two sets of punching bosses. The upper end of the guide post is fixed on the movable block and the lower end is slidably connected to the fixed block.

[0007] Further description of the present invention: It also includes a bottom wedge block, which is fixed on the lower mold base. The bottom wedge block is provided with an installation slope facing the inside of the lower mold base, and the base is fixed on the installation slope.

[0008] Further description of this utility model: It also includes an elastic pressing component, which includes an elastic telescopic member and a pressure plate. The upper end of the elastic telescopic member is fixed on the upper mold base and the elastic telescopic end faces downward. Multiple sets of elastic telescopic members are provided. The pressure plate is fixed on the elastic telescopic ends of the multiple sets of elastic telescopic members. The pressure plate corresponds to the top of two sets of punching bosses.

[0009] The beneficial effects of this utility model are as follows: Before stamping, the mold is in the open state. Under the action of the first nitrogen spring, the punching slide is positioned close to the limiting boss. The left and right sides of the workpiece are placed on two sets of punching bosses. The part to be punched corresponds between the punching plate and the punching head. When the mold is closed, the upper mold base descends and the driving block descends synchronously. The driving block contacts the driving inclined surface of the punching slide through the second wear-resistant block and drives the punching slide to move towards the workpiece. The punching head cooperates with the punching plate to cut material off the workpiece. The cut-off waste falls into a designated position through the punching through hole for collection. During the downward movement of the driving block, the third wear-resistant block and the first wear-resistant block on the limiting boss are in contact, which can limit and support the movement of the driving block. The principle of the second lateral cutting component is the same as that of the first lateral cutting component, so that the left and right sides of the workpiece are laterally punched at one time. After the punching is completed, the mold is opened, and the punching slide automatically resets under the action of the first nitrogen spring. The advantage of this design is that by setting a drive block on the upper die base, the punching slide and punching head are driven by the drive block to complete the punching action. It is inexpensive, has a compact structure, can effectively reduce the cost of molds, and can punch both sides of the workpiece at the same time, thus improving production efficiency. Attached Figure Description

[0010] Figure 1 This is an overall structural diagram of the present invention;

[0011] Figure 2 This is a structural diagram of the first lateral cutting component in this utility model (where the driving block is not shown);

[0012] Figure 3 This is a structural diagram of the upper mold base, drive block, and elastic pressing assembly in this utility model;

[0013] Figure 4 This is a structural diagram of the automatic lifting component in this utility model;

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Upper mold base; 2. Lower mold base; 3. First lateral cutting assembly; 31. Base; 311. Punching boss; 312. Limiting boss; 3121. First wear-resistant block; 313. Mounting plane; 314. Punching through hole; 32. Slide rail; 33. First nitrogen spring; 34. Punching slider; 341. Driving inclined surface; 35. Punching head; 36. Punching plate; 37. Driving block; 371. Second wear-resistant block; 372. Third wear-resistant block; 4. Second lateral cutting assembly; 5. Automatic lifting assembly; 51. Fixed block; 52. Movable block; 53. Second nitrogen spring; 54. Lifting platform; 55. Guide post; 6. Bottom wedge; 61. Mounting inclined surface; 7. Elastic pressing assembly; 71. Elastic telescopic component; 72. Pressure plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figures 1 to 4As shown, a bidirectional cutting mechanism for a stamping die includes an upper die base 1, a lower die base 2, a first lateral cutting assembly 3, and a second lateral cutting assembly 4. The upper die base 1 is positioned above the lower die base 2. The first lateral cutting assembly 3 includes a base 31, a slide rail 32, a first nitrogen spring 33, a punching slide block 34, a punching head 35, a punching plate 36, and a driving block 37. The base 31 is fixed above the upper die base 1. The left and right sides of the base 31 are respectively provided with upwardly protruding punching bosses 311 and limiting bosses 312. A mounting plane 313 is provided in the upper center of the base 31. The slide rail 32 is fixed on the mounting plane 313. The lower end of the punching slide block 34 is slidably connected to both the slide rail 32 and the mounting plane 313. The first nitrogen spring 33 is fixed on the base 31, and its elastic extension end is fixedly connected to the lower end of the punching slide block 34. The punching head 35 is fixed to the left end of the punching slide block 34. The punching plate 36 is fixed to the punching head 34. On the platform 311 and corresponding to the punching head 35, the base 31 is provided with a punching through hole 314, which passes through the punching boss 311 and the punching plate 36. The left end of the punching head 35 is inserted into the punching through hole 314. The left end of the limiting boss 312 is vertically fixed with a first wear-resistant block 3121. The right end of the punching slider 34 is provided with a driving inclined surface 341 that is inclined to the vertical direction and faces upward. The upper end of the driving block 37 is fixed on the upper mold base 1. The lower end of the driving block 37 is provided with a second wear-resistant block 371 and a third wear-resistant block 372 on the left and right sides respectively. The left end face of the second wear-resistant block 371 contacts the driving inclined surface 341, and the right end face of the third wear-resistant block 372 contacts the left end face of the first wear-resistant block 3121. The structure of the second lateral cutting component 4 is symmetrical to the structure of the first lateral cutting component 3. The second lateral cutting component 4 is fixedly set on the left side of the first lateral cutting component 3.

[0018] Before stamping, the mold is in the open state. Under the action of the first nitrogen spring 33, the punching slide 34 is located on the side close to the limiting boss 312. The left and right sides of the workpiece are placed on the two sets of punching bosses 311. The part to be punched corresponds to the space between the punching plate 36 and the punching head 35. When the mold is closed, the upper mold base 1 descends and the driving block 37 descends synchronously. The driving block 37 contacts the driving inclined surface 341 of the punching slide 34 through the second wear-resistant block 371 and drives the punching slide 34 to move towards the workpiece. The punching head 35 cooperates with the punching plate 36 to cut material off the workpiece. The cut waste falls to the designated position through the punching through hole 314 for collection. During the downward movement of the driving block 37, the third wear-resistant block 372 and the first wear-resistant block 3121 on the limiting boss 312 fit together, which can limit and support the movement of the driving block 37. The principle of the second lateral cutting component 4 is the same as that of the first lateral cutting component 3, thus performing lateral punching on both sides of the workpiece in one operation. After punching, the mold is opened, and the punching slide 34 automatically resets under the action of the first nitrogen spring 33. The advantage of this design is that by setting a driving block 37 on the upper mold base 1, the driving block 37 drives the punching slide 34 and the punching head 35 to complete the punching action. It is inexpensive, has a compact structure, can effectively reduce mold costs, and can punch both sides of the workpiece simultaneously, improving production efficiency.

[0019] The system also includes an automatic lifting assembly 5, which includes a fixed block 51, a movable block 52, a second nitrogen spring 53, a lifting platform 54, and a guide post 55. Two sets of fixed blocks 51 are provided and fixed on the front and rear sides of the lower mold base 2, respectively. The lower end of the second nitrogen spring 53 is fixed on the fixed block 51. The movable block 52 is located above the fixed block 51 and is fixed to the elastic extension end of the second nitrogen spring 53. The front and rear ends of the lifting platform 54 are fixed on the two sets of movable blocks 52, respectively. The lifting platform 54 corresponds to the middle upper part of the two sets of punching bosses 311. The upper end of the guide post 55 is fixed on the movable block 52 and the lower end is slidably connected to the fixed block 51.

[0020] In the mold-opening state, the second nitrogen spring 53 automatically lifts the movable block 52 and the lifting platform 54. The lifting platform 54 is used to place the workpiece. During the mold-closing process, the workpiece is pressed down, driving the lifting platform 54 to descend, so that both ends of the workpiece correspond to the punching head 35, so that the punching process can be carried out. After the punching is completed, when the mold is opened, the lifting platform 54 automatically rises to remove the workpiece.

[0021] This design also includes a bottom wedge 6, which is fixed on the lower mold base 2. The bottom wedge 6 has an installation slope 61 facing the inside of the lower mold base 2, and the base 31 is fixed on the installation slope 61.

[0022] The bottom wedge 6 is provided so that the punching head 35 can punch the workpiece at an angle to adapt to the tilt angle of the workpiece.

[0023] In this design, an elastic pressing component 7 is also included. The elastic pressing component 7 includes an elastic telescopic member 71 and a pressure plate 72. The upper end of the elastic telescopic member 71 is fixed on the upper mold base 1 and the elastic telescopic end faces downward. Multiple sets of elastic telescopic members 71 are provided. The pressure plate 72 is fixed on the elastic telescopic ends of the multiple sets of elastic telescopic members 71. The pressure plate 72 corresponds to the area above the two sets of punching bosses 311.

[0024] When the mold is closed, the pressure plate 72 presses against the workpiece. As the upper mold base 1 continues to descend, the elastic telescopic component 71 is compressed, so that the pressure plate 72 always presses against the workpiece, preventing the workpiece from shifting during the punching process.

[0025] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A bidirectional cutting mechanism for stamping dies, characterized in that: The device includes an upper die base, a lower die base, a first lateral cutting assembly, and a second lateral cutting assembly. The upper die base is positioned above the lower die base. The first lateral cutting assembly includes a base, a slide rail, a first nitrogen spring, a punching slide, a punching head, a punching plate, and a drive block. The base is fixed above the upper die base. The left and right sides of the base are respectively provided with upwardly protruding punching bosses and limiting bosses. A mounting plane is provided in the middle of the upper part of the base. The slide rail is fixed on the mounting plane. The lower end of the punching slide is slidably connected to both the slide rail and the mounting plane. The first nitrogen spring is fixed to the base, and its elastic extension end is fixedly connected to the lower end of the punching slide. The punching head is fixed to the left end of the punching slide. The punching plate is fixed to the punching boss and corresponds to the... The punching head has a punching through hole on its base, which passes through the punching boss and the punching plate. The left end of the punching head is inserted into the punching through hole. A first wear-resistant block is vertically fixed to the left end of the limiting boss. The right end of the punching slider has a driving inclined surface that is inclined to the vertical direction and faces upward. The upper end of the driving block is fixed to the upper die base. A second wear-resistant block and a third wear-resistant block are respectively provided on the left and right sides of the lower end of the driving block. The left end face of the second wear-resistant block contacts the driving inclined surface, and the right end face of the third wear-resistant block contacts the left end face of the first wear-resistant block. The structure of the second lateral cutting assembly is symmetrical to the structure of the first lateral cutting assembly. The second lateral cutting assembly is fixedly disposed on the left side of the first lateral cutting assembly.

2. The bidirectional cutting mechanism for stamping dies according to claim 1, characterized in that: It also includes an automatic lifting assembly, which comprises a fixed block, a movable block, a second nitrogen spring, a lifting platform, and a guide post. Two sets of fixed blocks are provided and fixed to the front and rear sides of the lower die base, respectively. The lower end of the second nitrogen spring is fixed to the fixed block. The movable block is located above the fixed block and fixed to the elastic extension end of the second nitrogen spring. The front and rear ends of the lifting platform are fixed to the two sets of movable blocks, respectively. The lifting platform corresponds to the middle upper part of the two sets of punching bosses. The upper end of the guide post is fixed to the movable block and the lower end is slidably connected to the fixed block.

3. The bidirectional cutting mechanism for stamping dies according to claim 1, characterized in that: It also includes a bottom wedge block, which is fixed on the lower mold base. The bottom wedge block has an inclined mounting surface facing the inside of the lower mold base, and the base is fixed on the inclined mounting surface.

4. The bidirectional cutting mechanism for stamping dies according to claim 1, characterized in that: It also includes an elastic pressing component, which includes an elastic telescopic member and a pressure plate. The upper end of the elastic telescopic member is fixed on the upper die base and the elastic telescopic end faces downward. Multiple sets of elastic telescopic members are provided. The pressure plate is fixed on the elastic telescopic ends of the multiple sets of elastic telescopic members. The pressure plate corresponds to the area above the two sets of punching bosses.

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