CN211052312U

CN211052312U - Compound cold pressing die

Info

Publication number: CN211052312U
Application number: CN201922128784.7U
Authority: CN
Inventors: 闫作华
Original assignee: Tianjin Jingmo Yuxiang Mould Technology Co ltd
Current assignee: Tianjin Jingmo Yuxiang Mould Technology Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-07-21
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a compound cold pressing die utensil, including last terrace die and with last terrace die assorted lower die, the below of lower die is equipped with the U-shaped base, and on the top fixedly connected with U-shaped frame of U-shaped base, the top thread tightening of U-shaped frame has the pneumatic cylinder, and the end that stretches out of pneumatic cylinder extend to in the U-shaped frame and with the top fixed connection of last terrace die, go up the terrace die slidable mounting in the U-shaped frame, the bottom fixedly connected with bottom plate of lower die, the bottom contact of U-shaped base has two U-shaped poles. The utility model relates to a rationally, impact force when can effectively alleviating the compound die, and be convenient for tighten elasticity according to actual need adjusting spring's support, reach and possess the function of alleviating the impact force when can effectively supporting different material stamping workpiece stabilizing, reduce the damage risk of terrace die and lower die when guaranteeing the stabilizing support, improve application scope, be favorable to the use.

Description

Compound cold pressing die

Technical Field

The utility model relates to a cold pressing die technical field especially relates to a compound cold pressing die.

Background

The cold pressing mold is also called cold stamping mold or cold extruding mold, and is the processing method of producing part through setting blank inside mold cavity, applying pressure to the blank via the punch fixed on the press at room temperature to make the blank produce plastic deformation.

At present, cold stamping dies adopted by enterprises in workpiece production mostly do not have the function of buffer protection and further cannot absorb and relieve huge impact force generated in die assembly, although simple buffer is provided on the market through arranging elastic parts such as springs at the bottom of a lower female die, the elasticity of the springs is not convenient to adjust according to actual requirements, so that the elastic supporting force cannot be adjusted, when stamping parts with the same shape but different materials, because the hardness of the stamping parts with different materials is different, namely the impact force in die assembly is also different, the supporting force of the stamping parts with different materials is ensured while relieving the impact force, the impact force can be stably supported by the stamping parts with different materials while relieving the impact force, and aiming at the phenomenon, in order to adapt to the buffer function while ensuring stable support of the stamping parts with different materials, therefore, a composite cold-pressing die is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a composite cold pressing die.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a composite cold pressing die comprises an upper male die and a lower female die matched with the upper male die, wherein a U-shaped base is arranged below the lower female die, the top of the U-shaped base is fixedly connected with a U-shaped frame, a hydraulic cylinder is fixedly arranged on the top of the U-shaped frame through threads, the extending end of the hydraulic cylinder extends into the U-shaped frame and is fixedly connected with the top of the upper male die, the upper male die is slidably mounted in the U-shaped frame, the bottom of the lower female die is fixedly connected with a bottom plate, the bottom of the U-shaped base is contacted with two U-shaped rods, two ends of each U-shaped rod extend to the upper part of the U-shaped base and are fixedly connected with the bottom of the bottom plate, the two U-shaped plates positioned in the U-shaped base are slidably sleeved on the two U-shaped rods, a plurality of springs are fixedly connected with the top of each U-shaped plate and the bottom of the bottom plate, the bottom of three hornblocks is the inclined plane, rotate on the bottom inner wall of U-shaped base and install two screw rods that the screw thread revolves to opposite, the one end that two screw rods are close to each other welds mutually, fixed mounting has driving motor on the bottom inner wall of U-shaped base, and the one end fixed connection of another screw rod is kept away from to one screw rod in driving motor's the output shaft tip and two screw rods, the thread bush is equipped with the removal seat of slidable mounting on U-shaped base bottom inner wall on the screw rod, and the top nested ball that has of removal seat, the top of ball and the inclined plane rolling contact of three hornblocks that correspond, the equal fixedly connected with landing leg in bottom four corners of U-shaped base.

Preferably, two T-shaped sliding rails are fixedly connected to the inner wall of the bottom of the U-shaped base, two T-shaped sliding grooves with two sides being provided with openings are formed in the bottom of the movable base, and the T-shaped sliding grooves are connected with the corresponding T-shaped sliding rails in a sliding mode.

Preferably, four first round holes are formed in the inner wall of the bottom of the U-shaped base, and the side walls of the first round holes are in sliding connection with the outer sides of the corresponding U-shaped rods.

Preferably, two second round holes are formed in two sides of the top of the U-shaped plate, and the side walls of the second round holes are connected with the outer sides of the corresponding U-shaped rods in a sliding mode.

Preferably, two move one side that the seat is close to each other and all seted up the screw hole, and screw hole and the screw rod threaded connection who corresponds.

Preferably, the inner wall of the bottom of the U-shaped base is fixedly connected with two bearings, and the inner rings of the bearings are fixedly sleeved with the outer sides of the corresponding screws.

Preferably, both sides of the upper male die are fixedly connected with sliding sleeves, and the inner sides of the sliding sleeves are slidably connected with the outer sides of the U-shaped frames.

Compared with the prior art, the beneficial effects of the utility model are that:

by matching an upper male die, a lower female die, a U-shaped base, a U-shaped frame, a bottom plate, U-shaped rods, a U-shaped plate, springs, triangular blocks, screw rods, a driving motor, moving seats, balls, T-shaped slide rails, a first round hole and a second round hole, when a hydraulic cylinder is started to drive the upper male die and the lower female die to be matched, impact force can drive a lower female die to move downwards, the lower female die drives two U-shaped rods to move downwards through the bottom plate and compress a plurality of springs, the counterforce of the springs can relieve impact force during die matching collision, when the springs are softer and cannot effectively cope with stamping parts made of harder materials, the driving motor is started positively to drive the two screw rods to rotate, the two screw rods can drive the two moving seats to move towards directions away from each other, the moving seats drive the corresponding balls to extrude the triangular blocks to move upwards, and the two triangular blocks drive the U-shaped, the spring is in a slightly compressed or semi-compressed state before buffering, the damping supporting elastic force of the spring in the compressed state on the bottom plate and the lower concave die is obviously increased, the initial compression degree of the spring can be adjusted according to actual needs, and therefore the supporting and tightening elastic force of the spring is adjusted, and the spring can be suitable for stamping parts made of different materials.

This use novel reasonable in design can effectively alleviate the impact force when the compound die, and is convenient for tighten elasticity according to actual need adjusting spring's support, reaches and possesses the function of alleviating the impact force when can effectively supporting different material stamping workpiece steady, reduces the damage risk of last terrace die and lower terrace die when guaranteeing the steady support, improves application scope, is favorable to using.

Drawings

Fig. 1 is a schematic structural view of a composite cold pressing mold provided by the utility model;

fig. 2 is the utility model provides a compound cold pressing mold's a part sectional structure sketch map.

In the figure: the device comprises an upper male die 1, a lower female die 2, a 3U-shaped base, a 4U-shaped frame, a 5 bottom plate, a 6U-shaped rod, a 7U-shaped plate, a 8 spring, a 9 triangular block, a 10 screw rod, a 11 driving motor, a 12 moving seat, 13 balls, a 14T-shaped sliding rail, a 15 first round hole and a 16 second round hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a composite cold pressing die comprises an upper male die 1 and a lower female die 2 matched with the upper male die 1, a U-shaped base 3 is arranged below the lower female die 2, the top of the U-shaped base 3 is fixedly connected with a U-shaped frame 4, a hydraulic cylinder is fixed on the top of the U-shaped frame 4 through threads, the extending end of the hydraulic cylinder extends into the U-shaped frame 4 and is fixedly connected with the top of the upper male die 1, the upper male die 1 is slidably mounted in the U-shaped frame 4, the bottom of the lower female die 2 is fixedly connected with a bottom plate 5, the bottom of the U-shaped base 3 is contacted with two U-shaped rods 6, the two ends of each U-shaped rod 6 extend above the U-shaped base 3 and are fixedly connected with the bottom of the bottom plate 5, the two U-shaped rods 6 are slidably sleeved with a same U-shaped plate 7 positioned in the U-shaped base 3, and the top of the U-shaped, the inner wall of the top of the U-shaped plate 7 is fixedly connected with two triangular blocks 9, the two triangular blocks 9 are symmetrically arranged, the bottom of each triangular block 9 is an inclined plane, the inner wall of the bottom of the U-shaped base 3 is rotatably provided with two screw rods 10 with opposite screw threads, one ends of the two screw rods 10 close to each other are welded, the inner wall of the bottom of the U-shaped base 3 is fixedly provided with a driving motor 11, the end part of an output shaft of the driving motor 11 is fixedly connected with one end of one screw rod 10 of the two screw rods 10 far away from the other screw rod 10, a moving seat 12 slidably arranged on the inner wall of the bottom of the U-shaped base 3 is sleeved on the screw threads of the screw rods 10, the top of the moving seat 12 is nested with a ball 13, the top of the ball 13 is in rolling contact with the inclined plane of the corresponding triangular block 9, four corners of the bottom of the U-, and be convenient for adjust spring 8's support elasticity that tightens according to actual need, reach and possess the function of alleviating the impact force when can effectively stabilizing the support to different material stamping workpiece, reduce the damage risk of punch 1 and lower die 2 when guaranteeing the stabilizing the support, improve application scope, be favorable to using.

In the utility model, two T-shaped sliding rails 14 are fixedly connected on the inner wall of the bottom of the U-shaped base 3, two T-shaped sliding grooves with both sides being opened are arranged at the bottom of the movable base 12, the T-shaped sliding grooves are slidably connected with the corresponding T-shaped sliding rails 14, four first round holes 15 are arranged on the inner wall of the bottom of the U-shaped base 3, the side walls of the first round holes 15 are slidably connected with the outer sides of the corresponding U-shaped rods 6, two second round holes 16 are arranged at both sides of the top of the U-shaped plate 7, the side walls of the second round holes 16 are slidably connected with the outer sides of the corresponding U-shaped rods 6, threaded holes are arranged at one sides of the two movable bases 12 close to each other, the threaded holes are in threaded connection with the corresponding screw rods 10, two bearings are fixedly connected on the inner wall of the bottom of the U-shaped base 3, the inner rings of the bearings are fixedly sleeved with the outer sides, and the inboard of sliding sleeve and the outside sliding connection of U-shaped frame 4, this uses novel reasonable in design, impact force when can effectively alleviate the compound die, and the support of being convenient for according to actual need accommodate spring 8 tightens elasticity, reaches and possesses the function of alleviating the impact force when can effectively stabilizing the support to different material stamping workpiece, reduces the damage risk of male die 1 and lower die 2 when guaranteeing stable support, improves application scope, is favorable to the use.

The working principle is as follows: when a hydraulic cylinder is started to drive an upper male die 1 to move downwards for punching, when the upper male die 1 moves downwards to collide with a lower female die 2, the lower female die 2 is impacted downwards and moves downwards, the lower female die 2 drives a bottom plate 5 to compress a plurality of springs 8 downwards, the bottom plate 5 drives two U-shaped rods 6 to respectively slide downwards in corresponding first round holes 15 and second round holes 16, the reaction force of the compressed springs 8 buffers the bottom plate 5 and the lower female die 2, and the impact force generated during die assembly collision can be relieved;

when the spring 8 is softer and cannot effectively cope with stamping parts made of harder materials, the supporting elastic force of the spring 8 needs to be adjusted, during adjustment, the driving motor 11 is started in the forward direction, an output shaft of the driving motor 11 drives the other screw 10 to rotate through one screw 10, at the moment, the two screws 10 synchronously rotate, the two screws 10 can drive the two moving seats 12 to slide on the two T-shaped sliding rails 14 in the direction away from each other, the moving seats 12 drive the corresponding balls 13 to extrude the inclined surfaces at the bottoms of the triangular blocks 9 upwards, under the extrusion force, the two triangular blocks 9 move upwards, the two triangular blocks 9 drive the U-shaped plate 7 to slide upwards on the two positioning rods 6, the U-shaped plate 7 compresses the spring 8 upwards, so that the spring 8 is in a slightly compressed or semi-compressed state before being buffered, the compression stroke of the spring is shortened, and the damping supporting elastic force of the spring 8 in the compressed state on the bottom plate 5 and the lower concave die, can be according to actual need regulating spring 8's initial compression degree to reach regulating spring 8's support elasticity of tightening, reach and possess the function of alleviating the impact force when effectively stabilizing the support to different material stamping workpiece, reduce the damage risk of male die 1 and lower die 2 when guaranteeing stable support, reach the stamping workpiece that can be applicable to different materials, be favorable to the use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A composite cold pressing die comprises an upper male die (1) and a lower female die (2) matched with the upper male die (1), and is characterized in that a U-shaped base (3) is arranged below the lower female die (2), the top of the U-shaped base (3) is fixedly connected with a U-shaped frame (4), a hydraulic cylinder is fixedly arranged on the top of the U-shaped frame (4) through threads, the extending end of the hydraulic cylinder extends into the U-shaped frame (4) and is fixedly connected with the top of the upper male die (1), the upper male die (1) is slidably mounted in the U-shaped frame (4), a bottom plate (5) is fixedly connected with the bottom of the lower female die (2), two U-shaped rods (6) are contacted with the bottom of the U-shaped base (3), the two ends of each U-shaped rod (6) extend to the upper side of the U-shaped base (3) and are fixedly connected with the bottom of the bottom plate (5), and a U-shaped plate (7) positioned in the U-shaped base (3) is slidably sleeved on the two, and the top of the U-shaped plate (7) and the bottom of the bottom plate (5) are fixedly connected with a plurality of springs (8), the inner wall of the top of the U-shaped plate (7) is fixedly connected with two triangular blocks (9), the two triangular blocks (9) are symmetrically arranged, the bottom of the triangular blocks (9) is an inclined plane, the inner wall of the bottom of the U-shaped base (3) is rotatably provided with two screw rods (10) with opposite screw threads, one ends of the two screw rods (10) which are close to each other are welded, the inner wall of the bottom of the U-shaped base (3) is fixedly provided with a driving motor (11), the end part of an output shaft of the driving motor (11) is fixedly connected with one end of the two screw rods (10) far away from the other screw rod (10), the screw rod (10) is provided with a moving seat (12) which is slidably arranged on the inner wall of the bottom of the U-shaped base (3), and the, the tops of the balls (13) are in rolling contact with the inclined surfaces of the corresponding triangular blocks (9), and four corners of the bottom of the U-shaped base (3) are fixedly connected with supporting legs.

2. A composite cold pressing die according to claim 1, wherein two T-shaped sliding rails (14) are fixedly connected to the inner wall of the bottom of the U-shaped base (3), two T-shaped sliding grooves with openings at both sides are formed in the bottom of the movable seat (12), and the T-shaped sliding grooves are slidably connected with the corresponding T-shaped sliding rails (14).

3. A composite cold pressing die according to claim 1, wherein four first circular holes (15) are formed in the inner wall of the bottom of the U-shaped base (3), and the side walls of the first circular holes (15) are slidably connected with the outer sides of the corresponding U-shaped rods (6).

4. A composite cold press die according to claim 1, wherein two second circular holes (16) are formed in both sides of the top of the U-shaped plate (7), and the side walls of the second circular holes (16) are slidably connected to the outer sides of the corresponding U-shaped bars (6).

5. A composite cold pressing die according to claim 1, wherein the two moving seats (12) are provided with threaded holes on the sides close to each other, and the threaded holes are in threaded connection with the corresponding screws (10).

6. A composite cold press die according to claim 1, wherein two bearings are fixedly connected to the inner wall of the bottom of the U-shaped base (3), and the inner rings of the bearings are fixedly sleeved with the outer sides of the corresponding screws (10).

7. A composite cold press die according to claim 1, wherein sliding sleeves are fixedly connected to both sides of the upper punch (1), and the inner sides of the sliding sleeves are slidably connected to the outer sides of the U-shaped frames (4).