CN218836036U

CN218836036U - A mould structure of loosing core for car battery case end plate

Info

Publication number: CN218836036U
Application number: CN202222770702.0U
Authority: CN
Inventors: 王佳佳; 曹浩鹏; 唐业祥; 招伟灿
Original assignee: Guangdong Wencan Mold Co ltd
Current assignee: Guangdong Wencan Mould And Tooling Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-11
Anticipated expiration: 2032-10-19

Abstract

The utility model relates to an automobile parts production field to a mould core pulling structure for car battery case end plate is disclosed, including fixing the hydro-cylinder in movable mould frame side, with the piston rod end connection's of hydro-cylinder take-up housing, many fixed connection take-up core bar on the take-up housing, every the take-up core bar is horizontal extension and including the shaping section of loosing core, the stifled section of flowing, the section of plugging into and the locking head that connects gradually, the cross section of the shaping section of loosing core and the stifled section of flowing is waist shape. The utility model provides a processing of mould structure of loosing core and die casting die cooperation one shot forming end plate foundry goods and mounting hole, cylinder drive take-up housing and core rod move towards movable mould core direction, and during the core rod inserted movable mould core, the core rod will loose core with the mode of blindly loosing core and take shape the section setting in end plate structure type chamber, and supplementary end plate forms virtual body structure, has simplified the process link of end plate aftertreatment greatly, improves production efficiency.

Description

A mould structure of loosing core for car battery case end plate

Technical Field

The utility model relates to an automobile parts production field, in particular to mould core pulling structure for automobile battery case end plate.

Background

Pure electric vehicles has the advantages of environmental protection, low noise, economy and easy maintenance, and is more and more favored by consumers, the automobile battery needs to be arranged in a battery box and passes through an end plate closing cap, because the structure of the end plate is complicated, a casting is usually processed and manufactured by adopting a die-casting die, the casting can be processed after machining to form an end plate finished product, as shown in fig. 7 and 8, a plurality of mounting holes 71 extending along the width direction of the casting 7 are required to be arranged at the bottom of the end plate casting 7 of a certain type, the cross section of the mounting holes 7 is of a waist-shaped structure, the subsequent processing difficulty is large, the processing time consumption is long, and in order to simplify the subsequent processing, a core-pulling structure is supposed to be arranged in the die-casting die, so that the mounting holes are formed when the end plate is molded by die-casting.

SUMMERY OF THE UTILITY MODEL

In view of the foregoing prior art's weak point, an object of the utility model is to provide a mould structure of loosing core, loose core to the body of end plate when aiming at die-casting to form the mounting hole of settlement.

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

the utility model provides a mould structure of loosing core for car battery case end plate, is including fixing the hydro-cylinder in movable mould frame side, with the slider seat of the piston rod end connection of hydro-cylinder and many fixed connection the core pulling rod on the slider seat, the core pulling rod is horizontal extension and including the shaping section of loosing core, the stifled section of flowing, the section of plugging into and the locking head that connects gradually, the cross section of the shaping section of loosing core and the section of plugging into is waist shape, the bore of the shaping section of loosing core increases gradually from the free end towards the section of plugging into, the locking head is connected with the slider seat, the inside of movable mould core is inserted to the side of the driven mould core of core pulling rod, and the shaping section of loosing core of core pulling rod is located the die cavity of movable mould core.

As a further improvement of the technical scheme, the sliding block seat comprises an L-shaped seat body and a vertical plate arranged on the left side face of the L-shaped seat body, a positioning protrusion is arranged on the end face, facing the L-shaped seat body, of the vertical plate, a positioning groove matched with the positioning protrusion is formed in the L-shaped seat body, and the L-shaped seat body is connected with the vertical plate through a screw.

As a further improvement of the above technical scheme, a countersunk through hole is formed in the end face of the vertical plate facing the L-shaped seat body, a countersunk cavity of the countersunk through hole is matched with the stopper, and a through hole cavity of the countersunk through hole is used for the connection section of the core pulling rod to pass through.

As a further improvement of the technical scheme, the cross section of the stop head is in a major arc shape.

As a further improvement of the technical scheme, the number of the core pulling rods is three, and the three core pulling rods are arranged at intervals from top to bottom.

As a further improvement of the technical scheme, the oil cylinder is fixed on the movable die frame through a U-shaped frame, the end part of a piston rod of the oil cylinder is connected with the sliding block seat through a joint, and the U-shaped frame is provided with a stroke detection mechanism for detecting the position of the sliding block seat.

As a further improvement of the above technical solution, the stroke detection mechanism includes a support plate fixed on the oil cylinder, a first stroke switch and a second stroke switch provided on the support plate, a guide rod fixed on the support plate and extending in the transverse direction, and a sleeve sleeved on the guide rod and capable of sliding relative to the guide rod, one end of the sleeve is connected with the slider seat through an elbow, the other end of the sleeve is sleeved with a trigger ring, the first stroke switch is located on the left of the second stroke switch, and the trigger ring can trigger the first stroke switch and the second stroke switch.

As a further improvement of the technical scheme, the upper side and the lower side of the slider seat are provided with guide strips for guiding the slider seat to slide.

Has the advantages that:

compared with the prior art, the utility model provides a processing of mould core pulling structure and die casting die cooperation one shot forming end plate foundry goods and mounting hole, cylinder drive take-up block seat and core pulling rod move towards movable mould core direction, and during the core pulling rod inserted movable mould core, the core pulling rod will loose core with the mode of blind loosing core and take shape the section setting in end plate structure type chamber, and supplementary end plate forms virtual body structure, and the technological innovation has simplified the process link of end plate aftertreatment greatly, improves production efficiency.

Drawings

Fig. 1 is the utility model provides a structural schematic of mould core pulling structure.

Fig. 2 is a partially enlarged view of the region L in fig. 1.

Fig. 3 is a schematic structural diagram of a die core-pulling structure after die casting.

Fig. 4 is a perspective view of the plunger rod.

Fig. 5 is a perspective view of the L-shaped base.

Fig. 6 is a perspective view of a riser.

Fig. 7 is a schematic diagram I of an end plate casting of a battery box of an automobile.

Fig. 8 is a second schematic view of an end plate casting of a battery case of an automobile.

Description of the main element symbols: 11-movable mould frame, 12-movable mould core, 2-oil cylinder, 3-sliding block seat, 31-L-shaped seat body, 32-vertical plate, 33-positioning protrusion, 34-positioning groove, 35-countersunk through hole, 4-core-pulling rod, 41-core-pulling forming section, 42-flow-blocking section, 43-connection section, 44-stop head, 5-U-shaped frame, 6-stroke detection mechanism, 61-support plate, 62-first stroke switch, 63-second stroke switch, 64-guide rod, 65-sleeve, 66-elbow, 67-trigger ring, 7-end plate casting, 71-mounting hole, 8-guide strip and 9-joint.

Detailed Description

The utility model provides a mould core pulling structure for car battery case end plate, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the drawing and the embodiment is lifted the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1-8, the utility model provides a mould core pulling structure for automobile battery box end plate, including fix at the hydro-cylinder 2 of movable mould frame 11 side, with the slider seat 3 of the piston rod end connection of hydro-cylinder 2 and many core pulling rod 4 of fixed connection on slider seat 3, every core pulling rod 4 is horizontal extension and including the shaping section of loosing core 41, the section of plugging in 42, the section of plugging in 43 and the locking head 44 that connect gradually, the cross section of the shaping section of loosing core 41 and the section of plugging in 42 is waist-shaped, the bore of the shaping section of loosing core 41 increases gradually from the free end towards the section of plugging in 42, be convenient for the drawing of patterns; the stop head 44 is connected with the slider seat 3, the side surface of the movable mold core 12 of the core pulling rod 4 is inserted into the movable mold core 12, that is, an avoiding hole for inserting the core pulling rod 4 is formed on the side surface of the movable mold core 12, and the core pulling forming section 41 of the core pulling rod 4 is located in the cavity of the movable mold core 12.

When the die-casting process is carried out, a fixed film core and a movable die core 12 form a complete end plate structure cavity, an oil cylinder 2 drives a sliding block seat 3 and a core pulling rod 4 to move towards the movable die core 12, the core pulling rod 4 is gradually inserted into a yielding hole of the movable die core 12, when the core pulling rod 4 moves in place, a core pulling forming section 41 of the core pulling rod 4 is inserted into the end plate structure cavity, then a metal fluid is injected into the end plate structure cavity through a casting opening, the whole end plate structure cavity is filled with the metal fluid in a flowing mode, the metal fluid surrounds the core pulling rod 4, when the metal fluid is cooled and solidified to form a casting, the oil cylinder 2 drives the sliding block seat 3 and the core pulling rod 4 to withdraw from the movable die core 12, and the position and the shape of the original core pulling forming section 41 are the position and the shape of the mounting hole 71.

Compared with the prior art, the core pulling rod 4 sets the core pulling forming section 41 in the end plate structure cavity in a blind core pulling mode, the auxiliary end plate casting 7 forms an imaginary structure, the process is innovative, the end plate casting 7 is formed in one step, and the machining of the mounting hole greatly simplifies the process link of the end plate post-treatment and improves the production efficiency.

Specifically, the take-up housing 3 includes L shape pedestal 31 and sets up the riser 32 on L shape pedestal 31 left surface, be provided with the location arch 33 on the riser 32 orientation L shape pedestal 31's the terminal surface, set up the positioning groove 34 with the protruding 33 looks adaptation of location on the L shape pedestal 31, through the cooperation of location arch 33 and positioning groove 34, ensure that L shape pedestal 31 and riser 32 cooperation butt joint are accurate, reduce the cooperation error, L shape pedestal 31 passes through the screw and is connected with riser 32, and take-up housing 3 adopts the components of a whole that can function independently structure, is convenient for install fixed core-pulling rod 4.

Furthermore, a countersunk through hole 35 is formed in the end surface of the vertical plate 32 facing the L-shaped seat body 31, a countersunk cavity of the countersunk through hole 35 is matched with the stopper 44, and a through hole cavity of the countersunk through hole 35 is used for the connection section 43 of the core pulling rod 4 to pass through. Through the arrangement, the stop head 44 is skillfully hidden between the L-shaped seat body 31 and the vertical plate 32, so that the occupied space is reduced, the L-shaped seat body 31 also compresses the stop head 44 in a countersunk cavity of the stop head 44, the core pulling rod 4 cannot axially rotate, and the stop head 44 is matched with the countersunk cavity of the countersunk through hole 35 to ensure that the core pulling rod 4 cannot circumferentially rotate.

Preferably, the cross section of the stopper head 44 is a major arc, that is, when the stopper head 44 is machined, only one plane needs to be milled on the basis of a round head, so that the stopper head 44 can be formed, the milling amount is small, and the connection section 43 is not damaged.

In this embodiment, three core bars 4 are provided, and the three core bars 4 are arranged from top to bottom at intervals, that is, three mounting holes 71 are formed on the end plate casting 7.

Preferably, the upper side and the lower side of the slider seat 3 are provided with guide bars 8 for guiding the slider seat 3 to slide, so that the sliding direction of the slider seat is ensured to be accurate, and the sliding friction force is small.

Specifically, the oil cylinder 2 is fixed on a movable die frame 11 through a U-shaped frame 5, the end part of a piston rod of the oil cylinder 2 is connected with the slider seat 3 through a joint 9, and a stroke detection mechanism 6 for detecting the position of the slider seat 3 is arranged on the U-shaped frame 5.

Further, the stroke detection mechanism 6 includes a support plate 61 fixed on the oil cylinder 2, a first stroke switch 62 and a second stroke switch 63 arranged on the support plate 61, a guide rod 64 fixed on the support plate 61 and extending transversely, and a sleeve 65 sleeved on the guide rod 64 and sliding relative to the guide rod 64, one end of the sleeve 65 is connected with the slider seat 3 through an elbow 66, the other end of the sleeve is sleeved with a trigger ring 67, the first stroke switch 62 is located on the left side of the second stroke switch 63, the trigger ring 67 can trigger the first stroke switch 62 and the second stroke switch 63, and the first stroke switch 62 and the second stroke switch 63 send signals to the production control system.

The elbow 66, the sleeve 65 and the trigger ring 67 can move transversely under the driving of the slider seat 3, when the trigger ring 67 triggers the first travel switch 62, it indicates that the core pulling rod 4 moves transversely to a set position, the core pulling forming section 41 of the core pulling rod 4 extends into the cavity of the movable mold core 12, and the flow blocking section 42 blocks the avoiding hole of the movable mold core 12 to prevent the metal fluid from permeating into the avoiding hole.

When the trigger ring 67 triggers the second travel switch 63, it indicates that the core-pulling forming section 41 of the core-pulling rod 4 exits the cavity of the movable mold core 12, so that the end plate casting 7 can be removed.

It should be understood that the joint 9 and the elbow 66 in fig. 1 and 3 are only schematically shown and are not in assembly connection with the L-shaped housing 31 of the slider housing 3.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions shall fall within the scope of the present invention.

Claims

1. The die core-pulling structure for the end plate of the battery box of the automobile is characterized by comprising an oil cylinder fixed on the side face of a movable die carrier, a sliding block seat connected with the end part of a piston rod of the oil cylinder, and a plurality of core-pulling rods fixedly connected to the sliding block seat, wherein each core-pulling rod transversely extends and comprises a core-pulling forming section, a flow blocking section, a connecting section and a stopping head which are sequentially connected, the cross sections of the core-pulling forming section and the flow blocking section are waist-shaped, and the caliber of the core-pulling forming section is gradually increased from a free end to the flow blocking section; the stop head is connected with the sliding block seat, the side face of the driven mold core of the core pulling rod is inserted into the movable mold core, and the core pulling forming section of the core pulling rod is positioned in the cavity of the movable mold core.

2. The mold core pulling structure for the automobile battery box end plate according to claim 1, wherein the slider seat comprises an L-shaped seat body and a vertical plate arranged on the left side face of the L-shaped seat body, a positioning protrusion is arranged on the end face, facing the L-shaped seat body, of the vertical plate, a positioning groove matched with the positioning protrusion is formed in the L-shaped seat body, and the L-shaped seat body is connected with the vertical plate through a screw.

3. The mold core pulling structure for the automobile battery box end plate according to claim 2, wherein a countersunk through hole is formed in the end face, facing the L-shaped seat body, of the vertical plate, a countersunk cavity of the countersunk through hole is matched with the stop head, and a connection section of the core pulling rod passes through a through hole cavity of the countersunk through hole.

4. The mold core pulling structure for the end plate of the battery box of the automobile as claimed in claim 3, wherein the cross section of the stopper head is a major arc segment.

5. The die core pulling structure for the automobile battery box end plate according to any one of claims 1 to 4, wherein three core pulling rods are arranged, and the three core pulling rods are arranged at intervals from top to bottom.

6. The mold core pulling structure for the automobile battery box end plate according to claim 1, wherein the oil cylinder is fixed on the movable mold frame through a U-shaped frame, the end part of a piston rod of the oil cylinder is connected with the slider seat through a joint, and a stroke detection mechanism for detecting the position of the slider seat is arranged on the U-shaped frame.

7. The mold core pulling structure for the automobile battery box end plate according to claim 6, wherein the stroke detection mechanism comprises a support plate fixed on the oil cylinder, a first stroke switch and a second stroke switch arranged on the support plate, a guide rod fixed on the support plate and extending in the transverse direction, and a sleeve sleeved on the guide rod and capable of sliding relative to the guide rod, one end of the sleeve is connected with the slider seat through an elbow, the other end of the sleeve is sleeved with a trigger ring, the first stroke switch is located at the left side of the second stroke switch, and the trigger ring can trigger the first stroke switch and the second stroke switch.

8. The mold core pulling structure for the automobile battery box end plate as claimed in claim 1, wherein guide strips for guiding the sliding block seat to slide are arranged on the upper side and the lower side of the sliding block seat.