CN210280398U

CN210280398U - Stamping die tensile structure

Info

Publication number: CN210280398U
Application number: CN201920927850.4U
Authority: CN
Inventors: 丁燕江; 经焕江; 张旺; 屠赛飞
Original assignee: Zhejiang Zhengding Auto Parts Co ltd
Current assignee: Zhejiang Zhengding Auto Parts Co ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-04-10
Anticipated expiration: 2029-06-19

Abstract

The utility model relates to the technical field of die design, and discloses a drawing structure of a stamping die, which comprises a seat body, an upper die plate, a female die and a fixed plate, the lower bolster, the ejector pin, the blank holder, the terrace die, a plurality of bar grooves have been seted up on the all sides outer wall that the blank holder is close to die one side, the extending direction in bar groove passes the central axis of blank holder, a plurality of bar grooves are along the even interval distribution in all sides of blank holder, all sides of blank holder just are located the position department of bar groove and are provided with adjust the cylinder, set up the through-hole that communicates with each other and supply the tailpiece of the piston rod portion of adjusting the cylinder to penetrate with the bar groove on the blank holder outer wall, adjust the tailpiece of the piston rod portion of cylinder and be provided with the connecting axle, the spread groove has been seted up to the lower extreme of connecting axle, be provided with the.

Description

Stamping die tensile structure

Technical Field

The utility model relates to a mold design technical field, in particular to stamping die tensile structure.

Background

The stamping die is a special process equipment for processing materials into parts in cold stamping processing, and is called as a cold stamping die. Stamping is a press working method in which a die mounted on a press is used to apply pressure to a material at room temperature to cause separation or plastic deformation of the material, thereby obtaining a desired part.

At present, a Chinese patent with the publication number of CN201625715U and the publication date of 2010, 11 and 10 discloses a multistage positioning and stretching die, wherein a fixed plate is connected between an upper die plate and a female die, a blank holder matched with the female die is connected on an ejector rod in sliding fit with a lower die plate, a male die matched with the female die is arranged at the upper end of the lower die plate, more than two groups of positioning pins are arranged on a pressure bearing surface of the blank holder, the lower ends of the positioning pins extend into the blank holder, the upper ends of the positioning pins extend out of the pressure bearing surface of the blank holder, the lower ends of the positioning pins are elastically abutted against the inside of the blank holder, the positioning pins are positioned on a circumference which takes the center of the blank holder as the center, the positioning pins of the same group are positioned on a circumference with.

When the processed metal plate is suitable to be positioned by a group of positioning pins at the innermost layer, the multi-stage positioning and stretching die is used for placing the metal plate at the inner side of the group of positioning pins; when the processed metal plate is suitable for being positioned by a group of positioning pins on the outermost layer, the metal plate is placed on the inner side of the group of positioning pins, and in the state, the metal plate is seated on other groups of positioning pins; this kind of tensile mould of multistage location relies on multiunit locating pin to fix a position multiple sheet metal respectively, but sheet metal is various, and different sheet metal can have different external diameters, and sheet metal's external diameter can not find suitable locating pin to fix a position, just needs to change the blank holder this moment to the locating pin that is fit for the sheet metal external diameter is installed to the blank holder, so will make the location to sheet metal more troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a stamping die tensile structure, the sheet metal to different external diameters that can be more convenient fixes a position, reduces the possibility that needs to change the blank holder.

The above technical purpose of the present invention can be achieved by the following technical solutions: a drawing structure of a stamping die comprises a base body, an upper die plate, a female die, a fixing plate, a lower die plate, a mandril, a blank holder and a male die, wherein the upper die plate is positioned on the base body, the female die is positioned on the upper die plate, the fixing plate is positioned between the upper die plate and the female die, the lower die plate is positioned on the base body, the mandril is connected on the lower die plate in a sliding manner, the blank holder is positioned on the mandril, the male die is positioned on the lower die plate, a plurality of strip grooves are formed in the peripheral side outer wall of the blank holder, which is close to one side of the female die, the extension direction of the strip grooves penetrates through the central axis of the blank holder, the strip grooves are uniformly distributed along the peripheral side of the blank holder at intervals, an adjusting cylinder is arranged at the peripheral side of the blank, the connecting structure is characterized in that a positioning pin with a lower end used for positioning the metal plate is arranged in the connecting groove, and a connecting spring with one end connected to the end of the positioning pin and the other end connected to the top wall of the connecting groove is arranged in the connecting groove.

The utility model discloses a further set up to: the piston rod end of the adjusting cylinder is provided with an internal thread sleeve, and the outer wall of one end of the connecting shaft is provided with an external thread which is in threaded connection with the internal thread sleeve.

The utility model discloses a further set up to: the outer diameter of the internal thread sleeve is smaller than the inner diameter of the through hole, and the through hole is used for the internal thread sleeve to pass through.

The utility model discloses a further set up to: the width of the strip-shaped groove is equal to the outer diameter of the internal thread sleeve.

The utility model discloses a further set up to: the adjustable seat is characterized by further comprising an adjusting seat located below the seat body, wherein a plurality of parallel sliding grooves are formed in the adjusting seat, and adjusting pieces used for fixing the seat body on the adjusting seat at different positions are arranged between the seat body and the adjusting seat.

The utility model discloses a further set up to: the adjusting part comprises two mounting plates, mounting grooves, mounting bolts and mounting nuts, the mounting grooves are formed in the mounting plates, the mounting bolts penetrate through the mounting grooves, the mounting bolts are in threaded connection with the mounting bolts and abut against the mounting plates tightly, the mounting plates are arranged on two sides of the seat body respectively, the mounting grooves are formed in the mounting plates in a U shape, the mounting bolts penetrate through the sliding grooves and then penetrate through the mounting grooves, and the sliding grooves are in a convex shape for the bolt heads to.

To sum up, the utility model discloses following beneficial effect has:

1. when the metal plate between the blank holder and the female die needs to be positioned, the adjusting cylinders at the positions of the strip grooves are started simultaneously, the adjusting cylinders can drive the connecting shafts in the strip grooves to move, the connecting shafts can move along the extending direction of the strip grooves, then the connecting shafts can simultaneously move towards the central axis of the blank holder, the connecting shafts can drive the positioning pins at the moment, and then the positioning pins can abut against the periphery of the metal plate, so that the metal plate is positioned; the positioning pin can move along the extension direction of the strip-shaped groove, so that the position of the positioning pin can be changed according to the outer diameter of the metal plate, the metal plates with different outer diameters can be conveniently positioned finally, and the possibility that the blank holder needs to be replaced is reduced;

when the blank holder needs to tightly press the metal plate on the female die, the positioning pin can retract into the connecting groove by utilizing the connecting spring with one end connected to the end part of the positioning pin and the other end connected to the top wall of the connecting groove, and meanwhile, the connecting spring elastically deforms, so that the clamping of the blank holder on the metal plate can be prevented from being influenced by the positioning pin;

2. the connecting shaft and the positioning pin can be detached from the strip-shaped groove only by rotating the connecting shaft when the positioning pin needs to be replaced or cleaned, and finally the connecting shaft can be detached conveniently;

3. when the adjusting cylinder needs to be detached from the blank holder, the connecting shaft can be detached at first, then the adjusting cylinder can be moved along the through hole, a piston rod of the adjusting cylinder and the internal thread sleeve can be moved out of the through hole together, and finally the adjusting cylinder can be detached conveniently;

4. by utilizing the width of the strip-shaped groove to be equal to the outer diameter of the internal thread sleeve, when the internal thread sleeve moves along the strip-shaped groove, the peripheral outer wall of the internal thread sleeve can be tightly abutted against the inner wall of the strip-shaped groove, and the limit on the internal thread sleeve can be completed through the inner wall of the strip-shaped groove, so that the internal thread sleeve can stably move along the strip-shaped groove, and finally, the positioning pin can stably move along the strip-shaped groove;

5. by utilizing the adjusting seat positioned below the seat body, when a plurality of dies need to be punched, the dies can be placed on the adjusting seat, at the moment, the mounting nut and the mounting bolt can be unscrewed by utilizing the chute formed in the adjusting seat, at the moment, the seat body can be moved along the chute, and finally, the position of the seat body can be adjusted, so that the other seat bodies can be placed at the vacant position on the adjusting seat; because the pedestal can remove along the spout to make the removal straight line of pedestal more accurate, reduce the pedestal and remove the possibility that takes place the skew.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view showing the connection among the upper die plate, the female die, the fixing plate, the lower die plate, the ejector rod, the male die and the blank holder of the utility model;

FIG. 3 is a schematic view of the connection relationship between the middle blank holder, the strip-shaped groove and the adjusting cylinder;

fig. 4 is an enlarged view of a portion a in fig. 2.

Reference numerals: 1. a base body; 2. mounting a template; 21. a female die; 22. a fixing plate; 3. a lower template; 31. a top rod; 32. a male die; 4. a blank holder; 41. a strip-shaped groove; 42. a through hole; 5. an adjusting cylinder; 51. a connecting shaft; 52. connecting grooves; 521. a connecting spring; 53. an internal thread sleeve; 54. an external thread; 6. positioning pins; 7. an adjusting seat; 71. a chute; 8. an adjustment member; 81. mounting a plate; 82. mounting grooves; 83. installing a bolt; 84. and (6) mounting the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A kind of stamping die stretching structure, refer to fig. 1, fig. 2, this kind of stamping die stretching structure includes the seat body 1, adjusts the seat 7, the cope match-plate pattern 2, the cavity die 21, the dead plate 22, the lower bolster 3, the knockout pin 31, the blank holder 4 and the terrace die 32, wherein the cope match-plate pattern 2 is installed on seat body 1, and the dead plate 22 is fixed on the cope match-plate pattern 2 through the bolt, the cavity die 21 is fixed on the dead plate 22 through the bolt and is far away from the end of the cope match-plate pattern 2; the lower template 3 is arranged on the base body 1, the lower template 3 is provided with a hole for the ejector rod 31 to pass through, the ejector rod 31 can be connected to the lower template 3 in a sliding manner, the blank holder 4 is fixed at the end part of the ejector rod 31 through a bolt, and the male die 32 is fixed on the lower template 3 through a bolt; the edge of the metal plate is pressed on the female die 21 by the blank holder 4, and then the metal plate can be punched after the male die 32 is embedded in the female die 21.

Referring to fig. 1, the adjusting seat 7 is located below the seat body 1, wherein a plurality of parallel sliding grooves 71 are formed on the adjusting seat 7, and the cross sections of the sliding grooves 71 are in a shape of a Chinese character 'tu'; meanwhile, an adjusting part 8 is arranged between the seat body 1 and the adjusting seat 7, the adjusting part 8 is used for fixing the seat body 1 on the adjusting seat 7 at different positions, the adjusting part 8 comprises an installation plate 81, installation grooves 82, installation bolts 83 and installation nuts 84, wherein the installation plates 81 are provided with two parts which are respectively welded on two sides of the seat body 1, the installation grooves 82 are arranged on the installation plate 81, the installation bolts 83 are used for penetrating through the sliding grooves 71 and then penetrating through the installation grooves 82 and then being screwed up through the installation nuts 84, and bolt heads of the installation bolts 83 are used for being embedded into the sliding grooves 71.

Referring to fig. 2, fig. 3, fig. 4, blank holder 4 has been seted up a plurality of bar grooves 41 on being close to the week side outer wall on die 21 one side, and the extending direction of bar groove 41 passes blank holder 4's the central axis, wherein a plurality of bar grooves 41 are along the even interval distribution in week side of blank holder 4, the week side of blank holder 4 and the position department that is located every bar groove 41 all have adjusting cylinder 5 through the bolt fastening simultaneously, wherein set up on the blank holder 4 outer wall with the bar groove 41 communicate with each other and supply the through-hole 42 that the piston rod tip of adjusting cylinder 5 penetrated.

Referring to fig. 2, 3 and 4, an internal thread sleeve 53 is welded on one end of the piston rod end of the adjusting cylinder 5, which is located in the strip-shaped groove 41, wherein the outer diameter of the internal thread sleeve 53 is smaller than the inner diameter of the through hole 42, and the through hole 42 is used for the internal thread sleeve 53 to pass through; meanwhile, the width of the strip-shaped groove 41 is equal to the outer diameter of the internal thread sleeve 53; wherein the internal thread bush 53 is embedded with the connecting shaft 51, and the outer wall of the connecting shaft 51 is provided with an external thread 54 which is in threaded connection with the internal thread bush 53; meanwhile, the lower end of the connecting shaft 51 is provided with a connecting groove 52, and a positioning pin 6 with the lower end used for positioning the metal plate is embedded in the connecting groove 52; wherein, a connecting spring 521 is further arranged in the connecting groove 52, one end of the connecting spring 521 is welded on the end of the positioning pin 6 and the other end is welded on the top wall of the connecting groove 52.

The principle is as follows: when the metal plate between the blank holder 4 and the female die 21 needs to be positioned, the adjusting cylinders 5 at the positions of the strip-shaped grooves 41 are started simultaneously, the adjusting cylinders 5 can drive the connecting shafts 51 in the strip-shaped grooves 41 to move, the connecting shafts 51 can move along the extending direction of the strip-shaped grooves 41, then the connecting shafts 51 can move towards the central axis of the blank holder 4 simultaneously, at the moment, the connecting shafts 51 can drive the positioning pins 6, and then the positioning pins 6 can abut against the periphery of the metal plate, so that the metal plate is positioned; wherein because locating pin 6 can remove along the extending direction of bar groove 41, so locating pin 6 can change the position according to sheet metal's external diameter size, and the sheet metal to different external diameters that finally can be more convenient fixes a position, reduces the possibility that needs change blank holder 4.

When the blank holder 4 needs to compress the metal plate on the female die 21, one end of the connecting spring 521 is connected to the end of the positioning pin 6, and the other end of the connecting spring 521 is connected to the top wall of the connecting groove 52, so that the positioning pin 6 can be retracted into the connecting groove 52, and meanwhile, the connecting spring 521 is elastically deformed, and finally, the positioning pin 6 can be prevented from influencing the compression of the blank holder 4 on the metal plate.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a drawing structure of stamping die, includes pedestal (1), be located cope match-plate pattern (2) on pedestal (1), be located die (21) on cope match-plate pattern (2), be located fixed plate (22) between cope match-plate pattern (2) and die (21), be located lower bolster (3) on pedestal (1), ejector pin (31) of sliding connection on lower bolster (3), be located blank holder (4) on ejector pin (31), be located terrace die (32) on lower bolster (3), its characterized in that: blank holder (4) are close to and have seted up a plurality of bar grooves (41) on the week side outer wall of die (21) one side, the extending direction in bar groove (41) passes the central axis of blank holder (4), and is a plurality of bar groove (41) are along the even interval distribution in week side of blank holder (4), the week side of blank holder (4) and the position department that is located bar groove (41) are provided with adjust cylinder (5), set up on blank holder (4) outer wall and communicate with each other with bar groove (41) and supply through-hole (42) that the tailpiece of the piston rod portion of adjusting cylinder (5) penetrated, the tailpiece of the piston rod portion of adjust cylinder (5) is provided with connecting axle (51), spread groove (52) has been seted up to the lower extreme of connecting axle (51), be provided with lower extreme in spread groove (52) and be used for carrying out the locating pin (6) of fixing a position to sheet metal, be provided with one end in A connecting spring (521) on the top wall.

2. The drawing structure of a press die as set forth in claim 1, wherein: the piston rod end of the adjusting cylinder (5) is provided with an internal thread sleeve (53), and an external thread (54) for being in threaded connection with the internal thread sleeve (53) is arranged on the outer wall of one end of the connecting shaft (51).

3. The drawing structure of a press die as set forth in claim 2, wherein: the outer diameter of the internal thread sleeve (53) is smaller than the inner diameter of the through hole (42), and the through hole (42) is used for the internal thread sleeve (53) to pass through.

4. The drawing structure of a press die as set forth in claim 2, wherein: the width of the strip-shaped groove (41) is equal to the outer diameter of the internal thread sleeve (53).

5. The drawing structure of a press die as set forth in claim 1, wherein: still including being located regulation seat (7) of pedestal (1) below, many spouts (71) that are parallel to each other have been seted up on adjusting seat (7), be provided with between pedestal (1) and regulation seat (7) and be used for fixing regulating part (8) of different positions departments on adjusting seat (7) with pedestal (1).

6. The drawing structure of a press die as set forth in claim 5, wherein: adjusting part (8) include two set up mounting panel (81) in pedestal (1) both sides respectively, set up mounting panel (81) on mounting panel (81) and be mounting groove (82) of U font, pass mounting bolt (83) of mounting groove (82) again behind spout (71), threaded connection just support mounting nut (84) on mounting panel (81) on mounting bolt (83), spout (71) are the "protruding" font that supplies the bolt head embedding.