CN204381182U - High-voltage connecting core one-time-shaped mould - Google Patents

Abstract

A high-voltage contact core molding die, including a cylindrical punch and two oppositely arranged molding halves, the molding halves include a base, a first-stage half-mold, a second-stage half-mold, and the first-stage half-mold is slidably installed In the first chute set on the base, the second half-mold is slidably installed in the second chute set on the first half-mold, and the inner surfaces of the base, the first half-mold and the second half-mold are all arranged coaxially There is an arc-shaped fixing groove, and forming grooves are arranged on both ends of the fixing groove, and the bases of the two forming half molds are connected by bolts; the punch is coaxially arranged with the fixing groove, and the inner end of the punch is The shaft is provided with a stamping groove, and the outer edge of the stamping groove is provided with a forming groove. The one-time molding die for high-voltage contact cores has a simple structure. After one stamping operation, two protrusions and one flange can be processed on the contact core. There are few working steps and high work efficiency, and only one time of fixing the contact core with the mold is required. The position of the processed flange is accurate, the processing precision is high, and the production quality is improved.

Description

One-time forming mold for high-voltage contact core

technical field

The utility model relates to a mould, in particular to a high-voltage core-connecting one-time molding mould.

Background technique

In the process of driving a car, when the driver turns the steering wheel, in order to help the driver use force, reduce the driver's effort when turning, and achieve the purpose of the driver's ease and convenience when driving, the car is equipped with a steering gear and a steering pump, and the steering pump is used to pump out The power steering oil is sent to the rotary valve of the steering gear, and then distributed to the oil cylinder of the steering gear to realize power steering.

The power steering oil is transmitted between the steering pump and the steering gear through the high-pressure rubber hose and the metal steering pipe. Due to the high pressure of the oil in the pipe, the sealing performance of the connection between the high-pressure rubber hose and the steering pipe is required to be high. In order to connect the high-pressure rubber hose, the steering tube is equipped with a core, the high-pressure rubber hose is put on the core, and the metal sleeve is buckled and fixed. In order to improve the tightness of the contact between the outer surface of the core and the inner surface of the high-pressure hose, the core is equipped with a ring In order to further improve the sealing performance, two protrusions should be provided. In order to locate the installation position of the high-pressure rubber hose, a flange should be provided on the core.

These protrusions and flanges are all processed by stamping. The current core processing method is to process the flanges and protrusions one by one from the inside to the outside. Every time a flange or protrusion is processed, the mold must be disassembled or Replacing the mould, the operation is complicated, and the work efficiency is low. Due to the fit of the metal sleeve that is buckled by the protrusions, the distance between the two protrusions also needs to be controlled. Each flange is processed separately, which increases the number of times to adjust the position of the mold and the core. The processing error is increased and the yield rate is reduced.

Utility model content

The utility model designs a high-voltage core-connecting one-time forming mold aiming at the problems of complicated operation, low work efficiency, large processing error and low yield of good products in the current core-connecting processing method.

The one-time molding die for high-pressure joint core of the utility model includes a columnar punch and two oppositely arranged molding halves,

The forming half-mold includes a base, a first-level half-mold, and a second-level half-mold. The first-level half-mold is slidably installed in the first chute set on the base, and the second-level half-mold is slidably installed on the first chute set by the first-level half-mold. In the secondary chute, arc-shaped fixing grooves are coaxially arranged on the inner surfaces of the base, the first half-mold and the second half-mold, and forming grooves are arranged on both ends of the fixing groove, and the two forming halves The base of the mold is connected by bolts;

The punch is arranged coaxially with the fixing groove, the inner end of the punch is coaxially provided with a punching groove, and the outer edge of the punching groove is arranged with a forming groove.

Preferably, guide shafts are installed on the molding halves, the inner section of the guide shaft is fixed in the mounting hole provided on the base, and the outer section of the guide shaft is slidably installed in the first through hole and the second through hole provided in the first half mold. In the second through hole provided by the two half molds, a first return spring is installed between the first half mold and the base, a second return spring is installed between the second half mold and the first half mold, and the first return spring and The second back-moving springs are all sleeved on the guide shaft.

Preferably, the two ends of the first return spring are respectively installed in the installation hole and the stepped groove provided in the first through hole, and the two ends of the second return spring are respectively installed in the stepped groove provided in the first through hole and the second through hole middle.

Preferably, a backing plate is installed on the base of the forming half mold, the backing plate is located at the outer end of the base, a cover plate is installed on the backing plate, an arc-shaped receiving groove is arranged on the inner edge of the cover plate, and the punch is located at the In the receiving groove, the outer end of the guide shaft is in contact with the cover plate.

Preferably, a protruding rail is provided on the inner surface of the base of one forming half-mold, and a guide groove cooperating with the protruding rail is provided on the inner surface of the base of the other forming half-mold, and both the protruding rail and the guide groove correspond to The axes of the fixing grooves are parallel.

The beneficial effects of the utility model are: the structure of the mold for forming the high-pressure joint core is simple, and two protrusions and a flange can be processed on the joint core after one stamping operation, the working steps are few, the work efficiency is high, and only The mold is used to fix the joint core once, so that the position of the processed flange is accurate, the processing precision is high, and the production quality is improved.

The guide shaft installed in the forming half-mold makes the movement of the first half-mold and the second half-mold more accurate during the stamping process, and the shape of the processed flange and protrusion is accurate, which further improves the processing accuracy.

Both ends of the first return spring and the second return spring are installed in the stepped groove, so that the two opposite stepped grooves can fully accommodate the compressed return spring, so that the stamped base, the first half mold and the second stage The mold halves can be closely attached to each other, avoiding gaps between forming grooves during stamping, preventing burrs on protrusions or flanges, and improving processing accuracy.

The forming half-mold is equipped with a cover plate through the backing plate, and is supported on the guide shaft to prevent the first-level half-mold and the second-level half-mold from falling out.

Description of drawings

Accompanying drawing 1 is the structural diagram of this high-voltage contact core one-time molding die.

Detailed ways

The one-time forming mold for high-pressure joint core of the utility model, as shown in Figure 1 , includes a columnar punch 1 and two oppositely arranged forming half-moulds 2 .

Forming half-mold 2 comprises base 3, first-level half-mold 4, second-level half-mold 5, first-level half-mold 4 is slidably installed in the first chute 6 provided on base 3, and second-level half-mold 5 is slidably installed on one In the secondary chute 7 that the stage half mold 4 is provided with.

The inner surfaces of the base 3 , the first-stage half-mold 4 and the second-stage half-mold 5 are coaxially provided with arc-shaped fixing grooves 8 , and both ends of the fixing groove 8 are provided with forming grooves 9 .

The bases of the two forming halves 2 can be connected by bolts 10 .

The punch 1 is arranged coaxially with the fixing groove 8, and is aligned with the gap between the two forming half-moulds 2. The inner end of the punch 1 is coaxially provided with a punching groove 11, and the outer edge of the punching groove 9 is provided with a forming groove 9.

A guide shaft 12 is installed on the forming half mold 2, the guide shaft 12 is parallel to the axial direction of the fixed groove 8, the inner section of the guide shaft 12 is fixed in the mounting hole 13 provided on the base 3, and the outer section of the guide shaft 12 slides Installed in the first through hole 14 provided by the first half-mold 4 and the second through hole 15 provided by the second half-mold 5, a first return spring 16 is installed between the first half-mold 4 and the base 3. A second return spring 17 is installed between the half-mold 5 and the first-stage half-mold 4 , and the first return spring 16 and the second return spring 17 are both sleeved on the guide shaft 12 .

The two ends of the first return spring 16 are respectively installed in the step groove 18 provided in the installation hole 13 and the first through hole 14, and the two ends of the second return spring 17 are installed in the first through hole 14 and the second through hole 15 respectively. In the stepped groove 18.

A backing plate 19 is installed on the base 3 of the molding half-mould 2, the backing plate 19 is located at the outer end of the base 3, the backing plate 19 is equipped with a cover plate 20, and the inner edge of the cover plate 20 is provided with an arc-shaped receiving groove 21 , the punch 1 is located in the receiving groove 21 , and the outer end of the guide shaft 12 is in contact with the cover plate 22 .

In the initial state, the two return springs are not compressed, and there is a gap between the base 3, the first half-mold 4 and the second half-mold 5.

During use, the two forming half-molds 2 clamp the core through the fixing grooves 8, the fixing grooves 8 of the two bases 3, the fixing grooves 8 of the two first-level half-moulds 4 and the fixing grooves 8 of the second-level half-molds 5 are all Hold the corresponding position of the core, and then use the bolt 10 to connect and lock the two forming half-moulds 2 .

The punch 1 is connected to the piston of the punching machine, the punching groove 11 of the punching head 1 is sleeved on the outer end of the connecting core, and the punching machine drives the punching head 1 to squeeze the connecting core inward.

The punch 1 gradually approaches the secondary half-mold 5, and the extruded core enters the gap between the punch 1 and the secondary half-mold 5, forming the first protrusion. When the punch 1 is completely attached to the secondary When on the surface of the half-die 5, the forming groove 9 of the punch 1 and the relative forming groove 9 of the secondary half-mold 5 further squeeze the first protrusion to form the first protrusion.

The punch 1 continues to move inward, and pushes the second half-mold 5 to move inward, so that the joint core enters the gap between the first half-mold 4 and the second half-mold 5 to form a second protrusion. When the second Back-moving spring 17 is fully compressed, and when the secondary half-mold 5 is fully attached to the surface of the first-stage half-mold 4, the forming groove 9 on the inner side of the second-stage half-mold 5 is further opposite to the forming groove 9 of the first-stage half-mold 4. Squeeze the first bump to form the second bump.

The punch 1 continues to move inward, and pushes the first-stage half-mold 4 through the second-stage half-mold 5, so that the contact core enters the gap between the first-stage half-mold 4 and the base 3 to form a third protrusion. A back-moving spring 16 is fully compressed, and when the first-stage half-mold 4 is fully attached to the surface of the base 3, the forming groove 9 on the inside of the first-stage half-mold 4 is further formed on the third protrusion by the forming groove 9 opposite to the base. Extrude to shape the third bump to form the flange.

Then the punch 1 returns to its original position, and the bolts 10 connecting the two forming half-moulds 2 are opened, and the forming operation of the joint core is completed.

Claims (4)

1. A high-voltage core-connecting one-time molding die is characterized in that, it comprises a columnar punch (1) and two oppositely arranged molding half-molds (2), Described molding half-mold (2) comprises base (3), first-level half-mold (4), second-level half-mold (5), and first-level half-mold (4) is slidably installed on the first set of base (3). In the first chute (6), the secondary half-mold (5) is slidably installed in the secondary chute (7) provided by the first-stage half-mold (4), and the base (3), the first-stage half-mold (4) and The inner surface of the secondary half-mold (5) is coaxially provided with an arc-shaped fixing groove (8), and the two ends of the fixing groove (8) are provided with molding grooves (9), and the two molding half-molds ( 2) the bases are connected by bolts (10); The punch (1) is arranged coaxially with the fixing groove (8), the inner end of the punch (1) is coaxially provided with a punching groove (11), and the outer edge of the punching groove (9) is provided with a forming groove (9 ). 2. The high-voltage contact core forming mold according to claim 1, characterized in that guide shafts (12) are installed on the molding half-moulds (2), and the axial direction between the guide shafts (12) and the fixing groove (8) Parallel, the inner section of the guide shaft (12) is fixed in the mounting hole (13) provided on the base (3), and the outer section of the guide shaft (12) is slidably installed in the first pass provided by the first half mold (4). In the second through hole (15) that hole (14) and secondary mold half (5) are provided with, first return spring (16) is installed between primary mold half (4) and base (3), secondary Second return spring (17) is installed between half mold (5) and first-level half mold (4), and first return spring (16) and second return spring (17) all are enclosed within on the guide shaft (12). 3. The high-voltage contact core molding die according to claim 2, characterized in that, the two ends of the first return spring (16) are respectively installed in the step groove provided in the installation hole (13) and the first through hole (14) In (18), both ends of the second return spring (17) are respectively installed in the stepped grooves (18) provided in the first through hole (14) and the second through hole (15). 4. The high-voltage contact core molding die according to claim 2, characterized in that, a backing plate (19) is installed on the base (3) of the molding half-mold (2), and the backing plate (19) is located at the base The outer end of (3), the backing plate (19) is equipped with a cover plate (20), the inner edge of the cover plate (20) is provided with an arc-shaped accommodation groove (21), and the punch (1) is located in the accommodation groove (21 ), the outer end of the guide shaft (12) is in contact with the cover plate (22).