A weakening fixture with adsorption and punching functions

Abstract

The utility model relates to the technical field of weakening mould, specifically disclose a kind of weakening mould with adsorption and punching function, including support seat, mould, cylinder punching mechanism, sensing component and vacuum suction mechanism, support seat is equipped with terminal box, mould is set on support seat, vacuum gas collection block is equipped in support seat, mould includes mould frame and the mould core of setting on mould frame, mould core is equipped with mould cavity, one side of mould cavity is equipped with punching area, vacuum suction mechanism includes first vacuum suction component and second vacuum suction component, first vacuum suction component and second vacuum suction component are correspondingly set in mould cavity and punching area respectively.The cylinder punching mechanism of the utility model can punch the edge of the product of punching area, and vacuum cavity corner cavity and large cavity in first vacuum suction component and second vacuum suction component are pumped simultaneously, to carry out vacuum suction to the whole contact surface and irregular punching site of product, to effectively fix the product.

Description

Technical Field

[0001] This utility model belongs to the field of weakened fixture technology, specifically a weakened fixture with adsorption and punching functions. Background Technology

[0002] For modern machinery manufacturers, weakening the instrument panel is a relatively essential requirement. Automotive dashboards are divided into hard and soft types, with soft dashboards being more commonly used in mid- to high-end vehicles. They often feature a seamless airbag on the passenger side. The soft dashboard has a three-layer structure: an outer skin, a middle foam layer, and a plastic skeleton. The remaining outer skin of the passenger-side airbag must be weakened. In the event of a high-speed collision, the airbag can deploy smoothly along the weakened lines without small fragments flying out, thus protecting occupants. There are many methods for weakening the outer skin, such as hot-blade, cold-blade, and laser-guided methods. During the weakening process, holes are punched at the edges to prevent errors in the next workstation. However, current punching methods cannot effectively secure the automotive dashboard material. Over-tightening can damage the outer skin, while loosening it can cause misalignment during punching. Both over-tightening and over-loosening methods can lead to product defects.

[0003] When existing weakening fixtures are used in conjunction with cold knife weakening mechanisms, the mold cavity on the mold core is damaged because the fixture does not have a weakening avoidance part. Therefore, there is an urgent need to design a weakening fixture with adsorption and punching functions to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a weakening die with adsorption and punching functions, which solves the problems mentioned above regarding the inability to control the force when fixing products with existing weakening dies and the lack of weakening avoidance parts on existing weakening dies, which can cause damage to the mold cavity on the die core.

[0005] To solve the above-mentioned technical problems, this utility model provides a weakening die with adsorption and punching functions, including a support base, a die mold, a cylinder punching mechanism, a sensing component, and a vacuum adsorption mechanism. The support base is equipped with a junction box, the die mold is mounted on the support base, and a vacuum gas collecting block is provided inside the support base. The die mold includes a die frame and a die core mounted on the die frame. The die core has a die cavity, and one side of the die cavity has a punching area.

[0006] The vacuum adsorption mechanism includes a first vacuum adsorption component and a second vacuum adsorption component, which are respectively disposed in the mold cavity and the punching area. Each component includes a vacuum chamber, a vacuum pump, a first vacuum connector, and a gas collection box. The vacuum chamber is located between the mold core and the mold frame, below the mold cavity or the punching area. Several second vacuum connectors are inserted through the bottom of the vacuum chamber. The lower part of each second vacuum connector passes through the top wall of the support base and extends into the support base. Each second vacuum connector is connected to the input end of the vacuum gas collection block via a pipe. The output end of the vacuum gas collection block is connected to the gas collection box via a pipe. The vacuum pump is disposed outside the mold frame. The input end of the vacuum pump is connected to the vacuum chamber via several first vacuum connectors and a vacuum pipe. The output end of the vacuum pump is connected to the gas collection box via a pipe. Several first adsorption holes communicating with the corresponding vacuum chambers are provided on both the mold cavity and the punching area.

[0007] The cylinder punching mechanism is located on one side of the mold and above the punching area. The cylinder punching mechanism is electrically connected to the junction box. There are several sensing components, which are respectively located in the mold cavity.

[0008] Furthermore, the cylinder punching mechanism includes a cylinder, a fixed plate, a punching cutter, and a buffer plate. The cylinder is fixedly disposed on one side of the punching area, the fixed plate is disposed on the output end of the cylinder, the punching cutter is fixedly disposed on the bottom of the fixed plate, and the buffer plate is connected to the fixed plate by a buffer bolt and a spring. The fixed plate has a first through hole through which the punching cutter can pass.

[0009] Furthermore, a weakening clearance groove is provided on the inner bottom surface of the mold cavity, and a plurality of first adsorption holes are provided in the weakening clearance groove, and the plurality of first adsorption holes are connected to the vacuum cavity.

[0010] Furthermore, the sensing component is either a position sensing switch or a proximity sensing switch.

[0011] Furthermore, a second through hole is provided at the edge of the mold cavity and on the side wall of the punching area. Each second through hole is connected to the vacuum cavity, and a vacuum plug is installed in the second through hole. The vacuum plug is provided with a plurality of second adsorption holes.

[0012] The beneficial effects of this utility model are as follows: The cylinder punching mechanism of this utility model can punch holes at the edge of the product in the punching area. At the same time, the first vacuum adsorption component and the second vacuum adsorption component are used to evacuate the corner cavity and the large cavity of the vacuum chamber, so as to perform vacuum adsorption on the entire contact surface of the product and the irregular punching part, so as to effectively fix the product and avoid the problem of product deviation during punching or weakening cutting.

[0013] The cylinder punching mechanism is designed to reduce the impact force of the punching tool directly contacting the product through a buffering method, so as to avoid the problem of the punching tool colliding with the product when it suddenly punches under the driving force of the cylinder.

[0014] The weakening clearance groove design makes it less likely to damage the mold cavity when the cold knife of the cold knife weakening mechanism weakens the product in the mold cavity of the die when the weakening die is installed on the processing equipment. This improves the service life of the die and solves the problem of the existing die being easily damaged by the cold knife of the cold knife weakening mechanism. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a top view of the weakened fixture with adsorption and punching functions of this utility model;

[0017] Figure 2 This is a left view of the weakened fixture with adsorption and punching functions of this utility model;

[0018] Figure 3 yes Figure 2 Enlarged view of A in the image;

[0019] Figure 4 This is a structural diagram of the weakened fixture with adsorption and punching functions of this utility model;

[0020] Figure 5 This is a cross-sectional view of the weakened fixture with adsorption and punching functions of this utility model.

[0021] Figure 6 This is a schematic diagram from another angle of the weakened fixture with adsorption and punching functions of this utility model;

[0022] In the diagram: 1-Support base, 2-Mold, 3-Cylinder punching mechanism, 4-Induction component, 6-Junction box, 7-Vacuum gas collection block, 21-Mold frame, 22-Mold cavity, 23-Punching area, 31-Cylinder, 32-Fixing plate, 33-Punching tool, 34-Buffer plate, 35-Buffer bolt, 36-Spring, 51-First vacuum adsorption component, 52-Second vacuum adsorption component, 531-Vacuum chamber, 533-First vacuum connection, 534-Gas collection box, 535-Vacuum plug, 536-Second vacuum connection, 221-Weakening clearance groove, 231-First adsorption hole. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In one specific embodiment of this utility model, such as Figure 1-6 As shown, a weakening die with adsorption and punching functions is disclosed, including a support base 1, a die mold 2, a cylinder punching mechanism 3, a sensing component 4, and a vacuum adsorption mechanism. A junction box 6 is provided on the support base 1, and the die mold 2 is set on the support base 1. A vacuum gas collection block 7 is provided inside the support base 1. The die mold 2 includes a mold frame 21 and a mold core set on the mold frame 21. A mold cavity 22 is opened on the mold core. A punching area 23 is provided on one side of the mold cavity 22. A second through hole is opened at the edge of the mold cavity 22 and on the punching area 23. Each second through hole is connected to a vacuum chamber 531, and a vacuum plug 535 is installed in the second through hole.

[0025] The vacuum adsorption mechanism includes a first vacuum adsorption component 51 and a second vacuum adsorption component 52. The first vacuum adsorption component 51 and the second vacuum adsorption component 52 are respectively disposed in the mold cavity 22 and the punching area 23. Both the first vacuum adsorption component 51 and the second vacuum adsorption component 52 include a vacuum chamber 531, a vacuum pump, a first vacuum connector 533, and a gas collection box 534. The vacuum chamber 531 is disposed between the mold core and the mold frame 21, and is located below the mold cavity 22 or the punching area 23. Several second vacuum connectors 536 are provided at the bottom of the vacuum chamber 531. The lower part of each second vacuum connector 536 passes through the top wall of the support base 1 and extends into the support base 1. Each second vacuum connector 536 is connected to the input end of the vacuum gas collecting block 7 via a pipe, and the output end of the vacuum gas collecting block 7 is connected to the gas collecting box 534 via a pipe. The vacuum pump is located on the outside of the mold frame 21, and the input end of the vacuum pump is connected to the vacuum chamber 531 via several first vacuum connectors 533 and vacuum pipes. Several first vacuum connectors 533 are respectively installed on the side walls of the corner cavity below the mold cavity 22 and the punching area 23, that is, on the side wall of the mold frame 21. The output end of the vacuum pump is connected to the gas collecting box 534 via a pipe. Several first adsorption holes 231 communicating with the corresponding vacuum chamber 531 are opened on the mold cavity 22 and the punching area 23.

[0026] The cylinder punching mechanism 3 is located on one side of the mold 2 and above the punching area 23. The cylinder punching mechanism 3 is electrically connected to the junction box 6. There are several sensing components 4, which are respectively located in the mold cavity 22. The sensing components 4 are either position sensing switches or proximity sensing switches.

[0027] The cylinder punching mechanism 3 includes a cylinder 31, a fixed plate 32, a punching cutter 33, and a buffer plate 34. The cylinder 31 is fixedly installed on one side of the punching area 23. The fixed plate 32 is installed on the output end of the cylinder 31. The punching cutter 33 is fixedly installed at the bottom of the fixed plate 32. The buffer plate 34 is connected to the fixed plate 32 by a buffer bolt 35 and a spring 36. One end of the buffer bolt 35 is screwed onto the upper part of the buffer plate 34, and the other end passes through the fixed plate 32 and is locked with a nut. The fixed plate 32 has a first through hole through which the punching cutter 33 can pass.

[0028] The cylinder punching mechanism 3 is designed to reduce the impact force of the punching tool 33 directly contacting the product through a buffering method, so as to avoid the problem of the punching tool 33 hitting the product when it suddenly punches under the driving force of the cylinder.

[0029] Second through holes are provided at the edge of the mold cavity 22 and on the side wall of the punching area 23. Each second through hole is connected to the vacuum chamber 531, and a vacuum plug 535 is installed in the second through hole. The vacuum plug 535 is provided with several second adsorption holes. The several second adsorption holes on the vacuum plug 535 can adsorb the product edges located at the edge of the mold cavity 22 and on the side wall of the punching area 23, so as to improve the tightness of adsorption of various parts of the product, effectively fix the product, and prevent the problem of displacement.

[0030] The weakening clearance groove 221 is designed so that when the weakening die is installed on the processing equipment, the cold knife of the cold knife weakening mechanism is less likely to damage the mold cavity 22 when it weakens the product in the part of the mold cavity 22 on the die, thereby improving the service life of the die and solving the problem that the existing die is easily damaged by the cold knife of the cold knife weakening mechanism.

[0031] The cylinder punching mechanism 3 can punch holes at the edges of the product in the punching area. At the same time, it can perform vacuuming in the corner cavity and large cavity of the first vacuum adsorption component 51 and the second vacuum adsorption component 52 to perform vacuum adsorption on the entire contact surface and irregular punching parts of the product, so as to effectively fix the product and avoid the product from deviating during punching or weakening cutting.

[0032] The working principle of this utility model:

[0033] The weakening die is installed on a device with a cold knife weakening mechanism. The soft automotive dashboard product is laid into the mold cavity 22, with the edge of the product located in the perforated area 23. The vacuum pumps of the first vacuum adsorption assembly 51 and the second vacuum adsorption assembly 52 are started, and the vacuum chamber 531 at the lower edge of the mold cavity 22 and the perforated area 23 is evacuated through the first vacuum connector 533 and the vacuum pipe, respectively. The vacuum gas collection block 7 is started, and the vacuum chamber 531 below the mold cavity 22 and the perforated area 23 is evacuated through the pipe and the second vacuum connector 536. The gas and moisture in the vacuum chamber 531 are removed by multi-directional vacuuming, thereby removing the gas and / or moisture between the mold cavity 22, the perforated area 23, the weakening clearance groove 221 and the product through several first adsorption holes 231, thereby effectively adsorbing the product onto the mold cavity 22 and the perforated area 23.

[0034] After adsorption is complete, when punching the product, cylinder 31 retracts to drive fixed plate 32 and parts on fixed plate 32 to move towards punching area 23. When buffer plate 34 contacts the product, buffer plate 34 is slightly moved towards fixed plate 32 by the reaction force of the product, which drives compression spring 36 and buffer bolt 35 to move towards fixed plate 32. At the same time, the nut on the upper part of buffer bolt 35 moves away from fixed plate 32, which prevents impact contact between punching tool 33 and product in advance. Meanwhile, cylinder 31 continues to retract, and punching tool 33 extends out after passing through the first through hole on buffer plate 34 to punch the product. The elastic force of spring 36 provides buffer force for the proximity of fixed plate 32 and buffer plate 34, effectively avoiding hard impact between fixed plate 32 and product, thereby improving the service life of cylinder punching mechanism 3. After punching is completed, cylinder 31 extends to drive fixed plate 32 and parts on fixed plate 32 to move away from punching area 23, completing the reset of cylinder punching mechanism 3.

[0035] After resetting, the cold knife weakening mechanism uses its cold knife to cut and weaken the part of the product located in the weakening clearance groove 221, thus completing the weakening operation on the product.

[0036] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A weakened fixture with adsorption and punching functions, characterized in that, The device includes a support base (1), a mold (2), a cylinder punching mechanism (3), a sensing component (4), and a vacuum adsorption mechanism. The support base (1) is equipped with a junction box (6), the mold (2) is mounted on the support base (1), and a vacuum gas collection block (7) is provided inside the support base (1). The mold (2) includes a mold frame (21) and a mold core mounted on the mold frame (21). The mold core has a mold cavity (22), and one side of the mold cavity (22) has a punching area (23). The vacuum adsorption mechanism includes a first vacuum adsorption component (51) and a second vacuum adsorption component (52). The first vacuum adsorption component (51) and the second vacuum adsorption component (52) are respectively disposed in the mold cavity (22) and the punching area (23). Both the first vacuum adsorption component (51) and the second vacuum adsorption component (52) include a vacuum chamber (531), a vacuum pump, a first vacuum connector (533), and a gas collection box (534). The vacuum chamber (531) is disposed between the mold core and the mold frame (21) and is located below the mold cavity (22) or the punching area (23). A plurality of second vacuum connectors (536) are provided at the bottom of the vacuum chamber (531). Each second vacuum connector... The lower part of the empty connector (536) passes through the top wall of the support base (1) and extends into the support base (1). Each second vacuum connector (536) is connected to the input end of the vacuum gas collection block (7) through a pipe. The output end of the vacuum gas collection block (7) is connected to the gas collection box (534) through a pipe. The vacuum pump is located on the outside of the mold frame (21). The input end of the vacuum pump is connected to the vacuum chamber (531) through several first vacuum connectors (533) and vacuum pipes. The output end of the vacuum pump is connected to the gas collection box (534) through a pipe. Several first adsorption holes (231) communicating with the corresponding vacuum chamber (531) are opened on the mold cavity (22) and the punched area (23). The cylinder punching mechanism (3) is located on one side of the mold (2) and above the punching area (23). The cylinder punching mechanism (3) is electrically connected to the junction box (6). There are several sensing components (4), which are respectively located in the mold cavity (22).

2. The weakening fixture with adsorption and punching functions according to claim 1, characterized in that, The cylinder punching mechanism (3) includes a cylinder (31), a fixed plate (32), a punching tool (33), and a buffer plate (34). The cylinder (31) is fixedly disposed on one side of the punching area (23). The fixed plate (32) is disposed on the output end of the cylinder (31). The punching tool (33) is fixedly disposed on the bottom of the fixed plate (32). The buffer plate (34) is connected to the fixed plate (32) by a buffer bolt (35) and a spring (36). The fixed plate (32) has a first through hole through which the punching tool (33) can pass.

3. The weakened fixture with adsorption and punching functions according to claim 1, characterized in that, The inner bottom surface of the mold cavity (22) is provided with a weakening avoidance groove (221), and the weakening avoidance groove (221) is provided with a plurality of first adsorption holes (231), which are connected to the vacuum cavity (531).

4. The weakening fixture with adsorption and punching functions according to claim 1, characterized in that, The sensing component (4) is either a position sensing switch or a proximity sensing switch.

5. A weakened fixture with adsorption and punching functions according to claim 1, characterized in that, A second through hole is provided at the edge of the mold cavity (22) and on the side wall of the punching area (23). Each second through hole is connected to the vacuum cavity (531), and a vacuum plug (535) is installed in the second through hole. The vacuum plug (535) is provided with a number of second adsorption holes.

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