CN221064134U - Device for shaping and punching stamping part - Google Patents

Abstract

The utility model relates to the field of stamping of welding stamping parts, in particular to a device for shaping and punching the stamping parts, which comprises a punch press and an upper template, wherein the upper template is fixed on the bottom surface of the punch press and moves up and down along with the punch press, wedge mechanisms are respectively arranged on two sides of the bottom surface of the upper template, a placing die arranged on a lower template is arranged between the two groups of wedge mechanisms, the stamping parts are arranged on the placing die, an upper pressing cover is fixed on the top of the placing die, and a left lower support and a right lower support are opposite to the two sides of the placing die; the sliding blocks of the two groups of wedge mechanisms are fixedly provided with side pressing plates and stamping dies on the inner sides, the upper die plate moves downwards, the two sliding blocks respectively drive the two side pressing plates and the two stamping dies to move in opposite directions, the two side pressing plates are matched with the placing die and simultaneously reshape the two lower supports, and the two stamping dies respectively penetrate through the two side pressing plates to punch side holes of the two lower supports. The utility model has the advantages of high processing precision, simple structure, high production efficiency and low die cost.

Description

Device for shaping and punching stamping part

Technical Field

The utility model relates to the field of stamping of welding stamping parts, in particular to a device for shaping and punching stamping parts.

Background

For a long time, complicated process equipment is required for manufacturing high-precision automobile parts, in order to reduce cost and simplify product process, products are often decomposed into a plurality of parts, each part is precisely shaped and punched, and then welded, however, the welding deformation is uncontrollable, so that the processing quality and the processing efficiency of the welded products are seriously affected. The special-shaped welding stamping part shown in fig. 3 consists of an upper gland 61 and a lower support 62, and the upper gland 61 and the lower support 62 are welded after being processed (precision shaping and side hole punching) independently in the traditional process, and the position and the size of the two-way side hole punching of the lower support 62 are affected due to uncontrollable welding deformation, so that the tolerance is unqualified, the product qualification rate is seriously reduced, and the processing efficiency is affected.

Disclosure of utility model

The utility model solves the problems that in the prior art, after each part of the stamping part is precisely shaped and punched, the side hole position and the size of the lower support are influenced by adopting a welding combination mode, so that the tolerance is unqualified, the product qualification rate is seriously reduced, and the processing efficiency is influenced.

The technical scheme of the utility model is as follows:

The device for shaping and punching the stamping part comprises a punch press and an upper template, wherein the upper template is fixed on the bottom surface of the punch press and moves up and down along with the punch press in a reciprocating manner, wedge mechanisms are respectively arranged on two sides of the bottom surface of the upper template, a placing die arranged on the lower template is arranged between the two groups of wedge mechanisms, the stamping part is arranged on the placing die, an upper gland is fixed on the top of the placing die, and a left lower support and a right lower support are opposite to the two sides of the placing die; the sliding blocks of the two groups of wedge mechanisms are fixedly provided with side pressing plates and stamping dies on the inner sides, the upper die plate moves downwards, the two sliding blocks respectively drive the two side pressing plates and the two stamping dies to move in opposite directions, the two side pressing plates are matched with the placing die and simultaneously reshape the two lower supports, and the two stamping dies respectively penetrate through the two side pressing plates to punch side holes of the two lower supports.

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

(1) The device provided by the utility model integrates the shaping die and the punching die, the stamping part which is welded with the upper gland and the lower support is fixed on the device for processing, when the punching die is used for bidirectionally punching the side hole of the lower support, the lower support still keeps the shaping state, so that the lower support is in the optimal processing state after punching, the form and position tolerance of the side hole after punching is easy to ensure, the rebound condition of the lower support after shaping is not considered, the problem of welding deformation is not considered, the position and the size of the side hole on the lower support can be accurately processed, the processing quality of bidirectionally punching the side hole of the lower support is ensured, the processing efficiency is improved, and the dies required by the two working procedures of shaping and punching are integrated into one set of die, and the die cost is also reduced.

(2) During shaping, when the side pressure plate inwards presses the outer surface of the lower support, the inner surface of the lower support is supported by the placing die, so that the problems of plane punching deformation and flanging burrs during punching caused by unsupported stamping parts can be prevented, and the side pressure plate also provides rigid support for the placing die, so that the situation that the punched side holes deform or the center line deviates due to poor rigidity of the placing die is avoided.

(3) The side pressing plate provides effective guiding for the punch, improves the precision of the side hole of the lower support, and has the advantages of high machining precision, simple structure, high production efficiency and low die cost.

Preferably, the middle part of the bottom surface of the upper template is fixed with a material pressing device opposite to the placing die through a nitrogen spring, two sides of the nitrogen spring are also provided with limit bolts connected with the bottom surface of the upper template and the material pressing device, the bottom surface of the material pressing device is inwards recessed to form a recessed part, and the recessed part is matched with the top surface of the upper pressing cover in shape.

Further preferably, an impact block sleeved on the upper part of the nitrogen spring is also arranged between the upper template and the nitrogen spring.

Preferably, the middle of the top surface of the placing die protrudes upwards to form a protruding part, the protruding part is matched with the shape of the bottom surface of the upper gland, the protruding part is circumferentially sleeved in the positioning frame, and the upper gland is fixed on the placing die through the positioning frame.

Preferably, the side pressure plate is connected with the sliding block through a nitrogen spring, and the stroke of the side pressure plate is limited through a limit bolt.

Further preferably, the outside of the side pressure plate is provided with a convex block protruding outwards, the shape of the convex block is matched with the structure of the position, needing to be shaped, of the lower support, the contact position between the two sides of the placing die and the position, needing to be shaped, of the lower support is provided with a groove, and the side pressure plate presses the position, needing to be shaped, of the lower support into the groove for shaping.

Further preferably, a concave die is laid on the bottom surface of the groove for placing the die, the circumference of the concave die is matched with the bottom of the groove, and a through hole for the die to pass through is formed in the middle of the concave die.

Preferably, the die is fixed on the slide block through a die fixing seat.

Drawings

The utility model will be described by way of reference to the accompanying drawings, in which:

FIG. 1 is a schematic perspective view of the whole structure of the present utility model;

FIG. 2 is a vertical cross-section of the present utility model;

FIG. 3 is a schematic perspective view of a profile according to the present utility model;

FIG. 4 is a schematic perspective view of the slider of the present utility model connected to a side platen and a die;

FIG. 5 is a schematic diagram of a three-dimensional structure of a connection between a presser and a nitrogen spring;

FIG. 6 is a schematic perspective view of a die of the present utility model;

FIG. 7 is a schematic perspective view of a side platen according to the present utility model;

FIG. 8 is a schematic perspective view of a placement die according to the present utility model;

FIG. 9 is a schematic perspective view of a female die of the present utility model;

FIG. 10 is a schematic perspective view of a positioning frame according to the present utility model;

Fig. 11 is a schematic perspective view of a locating pin according to the present utility model.

Reference numerals: the upper die plate 1, the upright post 10, the wedge 11, the sliding block 12, the wedge fixing seat 13, the lower die plate 14, the material presser 15, the concave part 151, the placing die 2, the convex part 21, the positioning frame 22, the positioning pin 23, the groove 24, the perforation 25, the female die 26, the through hole 27, the side pressing plate 3, the convex block 31, the die 4, the die fixing seat 41, the nitrogen spring 5, the impact block 51, the limit bolt 52, the upper pressing cover 61, the lower support 62 and the side hole 621.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1: the device for shaping and punching the stamping part comprises a punch press, wherein an upper die plate 1 is fixed on the bottom surface of an upper platform of the punch press, the punch press drives the upper die plate 1 to reciprocate up and down, wedge mechanisms are respectively arranged on two sides of the bottom surface of the upper die plate 1, the two wedge mechanisms are symmetrically arranged, each wedge mechanism comprises a wedge 11 and a sliding block 12, and the wedge mechanisms are mechanical mechanisms which change vertical movement into horizontal movement or inclined movement through the cooperation of the wedge 11 and the sliding block 12. Two inclined wedges 11 are respectively fixed on two sides of the bottom surface of the upper template 1 and move up and down along with the upper template 1, two sliding blocks 12 are respectively arranged on a left inclined wedge fixing seat 13 and a right inclined wedge fixing seat 13, the two inclined wedge fixing seats 13 are arranged at the left end and the right end of a lower template 14 right below the upper template 1, the upper template 1 and the lower template 14 are connected through a stand column 10, the upper template 1 is sleeved on the column body of the stand column 10 and moves up and down in the stroke range, and when a punch press moves down, the upper template 1 drives the two inclined wedges 11 to move down and pushes the two sliding blocks 12 to the inner sides in opposite directions.

The middle of the sliding blocks 12 of the two sets of wedge mechanisms is provided with a placing die 2, the distance between the placing die 2 and the sliding blocks 12 at two sides is consistent, a stamping part welded by an upper gland 61 and a lower support 62 is placed on the placing die 2, the upper gland 61 is fixed at the top of the placing die 2, and the left lower support 62 and the right lower support 62 are opposite to the two sides of the placing die 2. The inner side surfaces of the sliding blocks 12 of the two groups of wedge mechanisms are respectively fixed with a side pressing plate 3 and a stamping die 4, and the two side pressing plates 3 and the two stamping dies 4 are respectively and symmetrically arranged by taking the placing die 2 as a center. The two side pressure plates 3 are respectively arranged between the sliding block 12 and the placing die 2 and are opposite to the sliding block and the placing die. As shown in fig. 4, one ends of the two dies 4 are respectively fixed on the slide block 12 through the die fixing seat 41, the other ends horizontally extend out of the inner side of the slide block 12 and pass through the side pressing plate 3, and two sides of the placing die 2 are also provided with through holes 25 opposite to the dies 4. The structure of the die 4 is adapted to the shape of the side hole 621 punched out of the lower support 62, and the side hole 621 punched out of the lower support 62 in this embodiment is rectangular, so that the structure of the die 4 is rectangular as shown in fig. 6. When the upper template 1 descends, the left and right sliding blocks 12 respectively drive the side pressing plates 3 and the stamping dies 4 on the inner sides to move forwards and transversely, namely move towards the inner sides of the two sliding blocks 12, the left and right side pressing plates 3 are contacted with the parts, needing to be shaped, of the outer sides of the two lower supports 62, the punching machine continues to descend, the left and right side pressing plates 3 press the parts, needing to be shaped, of the lower supports 62 to the placing die 2, the side pressing plates 3 are matched with the placing die 2 to shape the two lower supports 62, the lower supports 62 can continuously keep the shaped state, the upper template 1 continues to descend, the left and right stamping dies 4 continue to move forwards to punch the parts, needing to be punched, of the two lower supports 62 into the placing die 2, the side punching holes 621 are formed in the set positions of the two lower supports 62, and punched punching materials fall into the placing die 2 from the punching holes 25 and then fall out of the bottom of the placing die 2.

The device in this embodiment integrates shaping die and cut-out die, will have fixed the stamping workpiece after upper gland 61 and lower support 62 welding are accomplished on this device and process, when stamping die 4 is to the two-way side hole 621 that dashes of lower support 62, because lower support 62 still keeps the state when the plastic is accomplished, therefore the lower support 62 is in the best processing state of punching, the form and position tolerance of hole 621 is easy to guarantee after punching, neither need consider the resilience condition of lower support 62 after the plastic, also need not consider the problem of welding deformation, side hole 621 position and size on lower support 62 can obtain accurate processing, guaranteed the processingquality to lower support 62 two-way side hole 621, machining efficiency has been improved, and with the required mould of plastic and twice processes of punching integral into one set of mould, also reduced the mould cost. Besides, during shaping, when the side pressure plate 3 presses the outer surface of the lower support 62 inwards, the inner surface of the lower support 62 is supported by the placing die 2, so that plane punching deformation caused by unsupported stamping parts and flanging burrs generated during punching can be prevented, and the side pressure plate 3 also provides rigid support for the placing die 2, so that deformation or central line deviation of the punched side holes 621 caused by poor rigidity of the placing die 2 is avoided. Finally, the side pressure plate 3 provides effective guiding for the punch, and also improves the accuracy of the side holes 621 of the lower support 62, and the device designed in this embodiment has the advantages of high processing accuracy, simple structure, high production efficiency and low die cost.

Example 2: on the basis of embodiment 1, the preferred design is carried out, as shown in fig. 5, the middle part of the bottom surface of the upper template 1 is fixedly provided with a material pressing device 15 through a nitrogen spring 5, the nitrogen spring 5 is a novel elastic component taking high-pressure nitrogen as a working medium, the effects of constant pressure and time delay action can be realized, an impact block 51 is further arranged between the upper template 1 and the nitrogen spring 5, the impact block 51 is sleeved on the upper part of the nitrogen spring 5, and when the punch press descends, the upper template 1 is contacted with the impact block 51 firstly, so that the impact force of the upper template 1 to the nitrogen spring 5 can be relieved. The two sides of the nitrogen spring 5 are also provided with limit bolts 52, the limit bolts 52 are bolts for restraining or controlling the movement range of mechanical parts or devices, one end of each limit bolt is fixed on the bottom surface of the upper die plate 1, the other end of each limit bolt penetrates through the presser 15, and the presser 15 can move up and down along the limit bolts 52 in the travel range. The presser 15 is located opposite to the placement die 2, and its bottom surface is recessed inward to form a recess 151, and the recess 151 is in shape-fit with the top surface of the upper press cover 61. After the stamping part is fixed on the placement die 2, the punch press descends, the upper die plate 1 drives the pressing device 15 to integrally move downwards, the concave part 151 on the bottom surface of the pressing device 15 is connected with the top surface of the upper pressing cover 61 in a matched mode, the upper die plate 1 continues to descend, the nitrogen spring 5 is compressed, the pressing device 15 presses the upper pressing cover 61 on the placement die 2 under the reaction force of the nitrogen spring 5, the limiting bolts 52 limit the downward moving stroke of the pressing device 15, normal operation of the pressing device 15 is guaranteed, the pressing device 15 arranged in the embodiment not only can fix the position of the upper pressing cover 61, but also can fix the shape of the upper pressing cover 61, and position deviation or shape change of the upper pressing cover 61 is prevented when the lower support 62 is shaped or punched. Wherein, according to the actual requirement, nitrogen springs 5 and limit bolts 52 with different types can be used, so that the upper gland 61 can be shaped by the presser 15.

Example 3: on the basis of the above embodiment, as shown in fig. 8, the middle of the top surface of the placement die 2 is protruded upwards to form a protruding part 21, the protruding part 21 is matched with the shape of the bottom surface of the upper pressing cover 61, the protruding part 21 is circumferentially sleeved with a positioning frame 22 as shown in fig. 10, one opposite side of the positioning frame 22 is fixed on the placement die 2, and two opposite sides of the upper pressing cover 61 are respectively fixed on the other opposite sides of the positioning frame 22 through positioning pins 23 as shown in fig. 11, so that the upper pressing cover 61 is fixed on the placement die 2 through the positioning frame 22. The positioning frame 22 preliminarily fixes the position of the upper gland 61, the protruding part 21 of the placement die 2 is matched with the material pressing device 15 to further fix the position and the shape of the upper gland 61, and the accurate positioning of the stamping part is completed.

Example 4: on the basis of embodiment 1, the connection mode of the side pressing plate 3 and the sliding block 12 is preferably designed, as shown in fig. 1, the left end and the right end of the two side pressing plates 3 are both provided with nitrogen springs 5 to be connected with the sliding block 12, when the upper template 1 descends, the upper template drives the sliding to compress the nitrogen springs 5, the reaction force of the nitrogen springs 5 acts on the side pressing plates 3, and the side pressing plates 3 reshape the lower support 62 under the elastic force of the nitrogen springs 5. And the upper end and the lower end of each nitrogen spring 5 are also provided with limit bolts 52, one end of each limit bolt 52 is fixedly connected with the sliding block 12, the other end of each limit bolt passes through the side pressing plate 3, the side pressing plate 3 can move back and forth in the stroke range along the limit bolts 52, and the transition shaping of the lower support 62 when the punch press continues to move downwards can be avoided.

Further, as shown in fig. 7, the outer side of the side pressure plate 3 is provided with a protruding block 31 protruding outwards, the shape of the protruding block 31 is matched with the structure of the part of the lower support 62 to be shaped, the contact position between the two sides of the placing die 2 and the shaping part of the lower support 62 is provided with a groove 24, and when the side pressure plate 3 moves forwards, the protruding block 31 presses the part of the lower support 62 to be shaped into the groove 24 for shaping.

Still further, as shown in fig. 7 to 9, the through hole 25 of the placement die 2 is disposed at the bottom surface of the groove 24, the bottom surface of the groove 24 is further provided with a female die 26, the female die 26 is circumferentially matched with the bottom of the groove 24, the middle part is provided with a through hole 27 communicated with the through hole 25, and when the die 4 punches the lower support 62, the die 4 passes through the through hole 27 on the female die 26 first and then passes through the through hole 25 at the bottom surface of the groove 24. Through setting up die 26 in the recess 24 of placing mould 2 for after the plastic is accomplished, die 26 top is connected at the upper inner side of lower support 62, punches a hole this moment, can prevent that the side opening 621 of lower support 62 from appearing warping in the circumference, and also can strengthen the durability of placing mould 2, prolongs its life.

The above examples merely illustrate specific embodiments of the application, which are described in more detail and are not to be construed as limiting the scope of the application. It should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the technical idea of the application, which fall within the scope of protection of the application.

Claims (8)

1. The utility model provides a device to stamping workpiece plastic and punching a hole, includes punch press and cope match-plate pattern (1), cope match-plate pattern (1) are fixed in the punch press bottom surface, and cope match-plate pattern (1) follow the punch press and do reciprocating motion from top to bottom, its characterized in that: wedge mechanisms are respectively arranged on two sides of the bottom surface of the upper die plate (1), a placement die (2) arranged on the lower die plate (14) is arranged between the two groups of wedge mechanisms, a stamping part is placed on the placement die (2), an upper gland (61) is fixed on the top of the placement die (2), and a left lower support (62) and a right lower support (62) are opposite to the two sides of the placement die (2); the sliding blocks (12) of the two groups of wedge mechanisms are fixedly provided with side pressure plates (3) and stamping dies (4) on the inner side surfaces, the upper die plate (1) descends, the two sliding blocks (12) respectively drive the two side pressure plates (3) and the two stamping dies (4) to move in opposite directions, the two side pressure plates (3) are matched with the placing die (2) and simultaneously shape the two lower supports (62), and the two stamping dies (4) respectively penetrate through the two side pressure plates (3) to punch side holes (621) on the two lower supports (62).

2. A device for shaping and punching stampings according to claim 1, characterized in that: the middle part of the bottom surface of the upper die plate (1) is fixed with a material pressing device (15) opposite to the placing die (2) through a nitrogen spring (5), limit bolts (52) connected with the bottom surface of the upper die plate (1) and the material pressing device (15) are further arranged on two sides of the nitrogen spring (5), the bottom surface of the material pressing device (15) is inwards recessed to form a recessed portion (151), and the recessed portion (151) is matched with the top surface of the upper pressing cover (61).

3. A device for shaping and punching stampings according to claim 2, characterized in that: an impact block (51) sleeved on the upper part of the nitrogen spring (5) is further arranged between the upper die plate (1) and the nitrogen spring (5).

4. A device for shaping and punching stampings according to claim 1, characterized in that: the middle of the top surface of the placement die (2) protrudes upwards to form a protruding portion (21), the protruding portion (21) is matched with the shape of the bottom surface of the upper pressing cover (61), the protruding portion (21) is circumferentially sleeved in the positioning frame (22), and the upper pressing cover (61) is fixed on the placement die (2) through the positioning frame (22).

5. A device for shaping and punching stampings according to claim 1, characterized in that: the side pressure plate (3) is connected with the sliding block (12) through the nitrogen spring (5), and the stroke of the side pressure plate (3) is limited through the limit bolt (52).

6. An apparatus for shaping and punching stampings according to claim 5, wherein: the side pressure board (3) outside is equipped with outside convex lug (31), lug (31) shape and the structure at lower support (62) need plastic position cooperate, place mould (2) both sides and lower support (62) plastic position contact position and be equipped with recess (24), side pressure board (3) press in recess (24) with lower support (62) need plastic position to press to carry out the plastic.

7. An apparatus for shaping and punching a stamping as defined in claim 6, wherein: concave dies (26) are paved on the bottom surfaces of grooves (24) of the placing dies (2), the circumferences of the concave dies (26) are matched with the bottoms of the grooves (24), and through holes (27) through which the stamping dies (4) penetrate are formed in the middle of the concave dies.

8. A device for shaping and punching stampings according to claim 1, characterized in that: the die (4) is fixed on the sliding block (12) through a die fixing seat (41).