CN211615836U

CN211615836U - Blind hole stamping die

Info

Publication number: CN211615836U
Application number: CN201921997064.8U
Authority: CN
Inventors: 何建城; 邓碧霞
Original assignee: Guangdong Liansu Technology Industrial Co Ltd
Current assignee: Guangdong Liansu Technology Industrial Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-10-02
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a spot facing work stamping die technical field, more specifically relates to a blind hole stamping die. The die comprises a die core for placing a workpiece and at least two groups of side dies, wherein the surface to be processed of the workpiece is attached to the side surface of the die core; the side die is arranged on the horizontal side of the die core and is provided with a punching needle for processing the blind hole, and the side die drives the punching needle to perform reciprocating punching motion towards the side face of the die core. In addition, the mold core still includes and holds in the palm the flitch, hold in the palm the flitch and be the annular, cup joint in mold core main part outer wall to slide in order to the machined part of bearing co-altitude along mold core main part outer wall back and forth. The utility model discloses an adjust the height of holding in the palm the flitch and realize the PVC switch box of different specifications, have stronger commonality, both sides all have the punching press side form, once can accomplish the punching press of the relative two sides of switch box, production efficiency is high.

Description

Blind hole stamping die

Technical Field

The utility model relates to a spot facing work stamping die technical field, more specifically relates to a blind hole stamping die.

Background

The concealed PVC switch box in the prior art is provided with blind holes on four sides, the blind holes are formed by hydraulic stamping of a special die after injection molding, the blind holes on one side are stamped in a general stamping mode, finished products of the blind holes on the four sides are stamped one by one, stamping can be completed for four times, and the production efficiency is low. Moreover, the existing blind hole stamping die can only process blind holes for finished products of one specification basically, and the adaptability is poor. Therefore, the design of the blind hole stamping die which can improve the production efficiency and is more universal has important significance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art the defect, provide a blind hole stamping die, the at least both sides of this mould are equipped with the punching press side form, once can accomplish the blind hole punching press of the relative two sides of products such as concealed installation PVC switch box simultaneously, production efficiency effectively improves. Meanwhile, the die can be suitable for concealed PVC switch boxes with different heights.

In order to solve the technical problem, the utility model discloses a technical scheme is:

a blind hole stamping die comprises a die core for placing a workpiece and at least two groups of side dies, wherein the surface to be processed of the workpiece is tightly attached to the side surface of the die core; the side die is arranged on the horizontal side of the die core and is provided with a punching needle for processing the blind hole, and the side die drives the punching needle to perform reciprocating punching motion towards the side face of the die core. The PVC switch box is a common machined part, the machining price cover is placed at the mold core, the surface to be machined is attached to the side surface of the mold core, and after the fixing is finished, the side mold is used for simultaneously punching multiple surfaces of the machined part to finish the machining of the blind hole.

Furthermore, the side molds are divided into two groups, and the two groups of side molds are symmetrically arranged by taking the mold core as the center. The two groups of side dies are arranged oppositely, and blind hole punching is carried out on two surfaces of a machined part simultaneously.

Further, the mold core comprises a mold core main body, a material pushing rod, a material pushing block and a roller, wherein the material pushing rod is vertically inserted into the center of the mold core main body, the material pushing block is arranged in the mold core main body in a sliding manner, and the roller is arranged on the material pushing block and is in point contact with the material pushing rod; the material pushing rod is provided with a sunken section for adjusting the sliding of the material pushing block, and the material pushing rod pushes the material pushing block to horizontally slide out of the side face of the mold core main body through the idler wheel. The workpiece covers the die core, the surface to be processed is tightly attached to the side surface of the die core, then the material pushing rod is pulled, the roller pushes the material pushing block to horizontally slide out of the side surface of the die core main body, and the inner wall of the workpiece is tightly pushed to be fixed and not to shake so as to punch the blind hole. After the punching is finished, the material pushing rod is pulled again, the roller slides into the concave section of the material pushing rod, the material pushing block is driven to reset by gravity, the machined part is not pushed tightly, and the machined part is convenient to take out.

Furthermore, the mold core also comprises a limiting pin for limiting the position of the material pushing block, and the limiting pin penetrates through the material pushing block; the material pushing block is correspondingly provided with a pin hole, a limiting distance is reserved in the horizontal direction of the pin hole, and the movement distance of the material pushing block is equal to the limiting distance of the pin hole. Wherein, the spacer pin mainly used restricts the motion of ejector pad, avoids it to drop. Generally, the limit pin is cylindrical, the pin hole is an elliptical hole, the pin hole is matched with the limit pin, and a certain space is reserved in the pin hole in the horizontal direction so that the material pushing block can move back and forth.

Further, the mold core still includes and holds in the palm the flitch, it is the annular to hold in the palm the flitch, cup joints in mold core main part outer wall to slide in order to support the machined part of co-altitude along mold core main part outer wall back and forth. The material supporting plate is used for bearing the bottom of the PVC switch box to be processed, and the material supporting plate can be used for PVC switch boxes with different heights by adjusting the height of the material supporting plate, so that the universality of the die is improved. Meanwhile, the material pushing block tightly pushes the inner wall of the workpiece to be fixed.

Furthermore, the side die comprises a punching needle, a punching needle fixing plate, a buffer spring and a pressure plate, wherein the pressure plate is parallel to the punching needle fixing plate and is connected with the punching needle fixing plate through the buffer spring; the fixed end of the punching needle is fixed on the punching needle fixing plate, the free end of the punching needle is sleeved on the pressure plate, and the free end of the punching needle movably penetrates through the pressure plate to perform punching. When the side die is punched, the punching needle fixing plate is close to the die core in a carry mode, the pressure plate is tightly pressed on the side wall of a machined part, the buffer spring is compressed, the free end of the punching needle penetrates through the pressure plate, blind hole punching is conducted on the machined part, after punching is completed, the punching needle fixing plate is far away from the die core and retreats, the pressure plate is separated from the machined part, the buffer spring resets, and the punching needle retracts into the pressure plate to avoid collision and damage.

Furthermore, a plurality of punching needle grooves are formed in the free end of the punching needle, and the punching needle grooves are evenly distributed around the periphery of the end face. The shape and the size of dashing the needle are unanimous with the shape and the size of blind hole, and whether the punching press is qualified for the sake of embodying the blind hole, and the terminal surface of dashing the needle generally is equipped with four and dashes the needle recess, and thimble recess can make PVC switch box's blind hole demonstrate protruding muscle after the punching press, and the PVC switch box that has protruding muscle is qualified product and normally drops and does not wear, and external force can be opened to knocking. Staff can be through observing whether PVC switch box after the punching press has protruding muscle as the qualified standard of product.

Furthermore, the side die is also provided with a spring rod for guiding the buffer spring. The buffer spring is sleeved on the spring rod, so that the shaking is effectively reduced. The spring rod is fixed on the punch pin fixing plate and is spaced from the pressure plate by a certain clearance distance so that the pressure plate can compress the buffer spring.

Furthermore, the mold core is a rectangular body, and the side molds are arranged on two sides of the opposite surface of the mold core.

Further, the concave section is positioned at one end of the head of the pushing rod. The concave section can be arranged at one end of the head of the material pushing rod and also can be arranged at the middle section of the material pushing rod.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a blind hole stamping die can realize the PVC switch box of different specifications through the height of adjusting the support flitch, has stronger commonality, and there is the punching press side form both sides, once can accomplish the punching press of the relative two sides of switch box, and production efficiency is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a front view (partially cut away) of the overall structure of the present invention.

Fig. 3 is a schematic view of the punching pin of the present invention.

The stamping die comprises a die core 1, a die side 2, a die core main body 11, a material pushing rod 12, a material pushing block 13, a roller 14, a limiting pin 15, a material supporting plate 16, a sunken section 121, a pin hole 131, a stamping pin 21, a stamping pin fixing plate 22, a buffer spring 23, a material pressing plate 24, a spring rod 25 and a stamping pin groove 211.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limiting the present patent, and those skilled in the art will understand the specific meaning of the terms according to their specific circumstances.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1-2, the present embodiment provides a blind hole stamping die, which includes a die core 1 for placing a workpiece and two sets of side dies 2, wherein the die core 1 is a rectangular body, a processing price cover is placed on the die core 1, and a surface to be processed of the workpiece is tightly attached to a side surface of the die core 1. Meanwhile, the side molds 2 are arranged on the two horizontal sides of the opposite surface of the mold core 1 and are symmetrically arranged by taking the mold core 1 as the center. The side die 2 is provided with a punching needle 21 for processing a blind hole, and the side die 2 drives the punching needle 21 to perform reciprocating punching motion towards the side surface of the die core 1.

The mold core 1 comprises a mold core main body 11, a material pushing rod 12, a material pushing block 13 and a roller 14, wherein the material pushing rod 12 is vertically inserted into the center of the mold core main body 11, the material pushing block 13 is slidably arranged in the mold core main body 11, and the roller 14 is arranged on the material pushing block 13 and is in point contact with the material pushing rod 12. Meanwhile, one end of the head of the material pushing rod 12 is provided with a concave section 121 for adjusting the sliding of the material pushing block 13, and the material pushing rod 12 pushes the material pushing block 13 to horizontally slide out to the side of the die core main body 11 through the roller 14.

When a PVC switch box to be punched is placed in the mold core 1, the material pushing rod 12 moves downwards, the concave section 121 is in contact with the roller 14, the roller 14 has a movable space to move towards the top of the material pushing rod 12, and the material pushing block 13 slides inwards. After the PVC switch box to be punched is placed in place, the material pushing rod 12 moves upwards, the roller 14 is separated from the concave section 121 at the moment, the material pushing block 13 is pushed to slide outwards, and the PVC switch box to be punched is tightly pushed and fixed.

Specifically, the mold core 1 further comprises a limit pin 15 for limiting the position of the material pushing block 13, and the limit pin 15 penetrates through the material pushing block 13 and is fixed on the mold core main body 11. Correspondingly, the pushing block 13 is correspondingly provided with a pin hole 131, a limit distance is reserved in the horizontal direction of the pin hole 131, and the movement distance of the pushing block 13 is equal to the limit distance of the pin hole 131. In this embodiment, the limit pin 15 is cylindrical, the pin hole 131 is an elliptical hole, the pin hole 131 is matched with the limit pin 15, and a certain space is left in the pin hole 131 in the horizontal direction, so that the pusher block 13 can move back and forth.

Specifically, the mold core 1 further comprises a material supporting plate 16, wherein the material supporting plate 16 is annular and is sleeved on the outer wall of the mold core main body 11 and slides back and forth along the outer wall of the mold core main body 11 to support workpieces with different heights. The material supporting plate 16 is used for bearing the bottom of the PVC switch box to be processed, and the material supporting plate 16 can be used for PVC switch boxes with different heights by adjusting the height of the material supporting plate 16, so that the universality of the die is improved

In addition, the side die 2 comprises a punching needle 21, a punching needle fixing plate 22, a buffer spring 23, a pressure plate 24 and a spring rod 25 for guiding the buffer spring 23, wherein the pressure plate 24 is parallel to the punching needle fixing plate 22 and is connected with the punching needle fixing plate 22 through the buffer spring 23. The fixed end of the punching needle 21 is fixed on the punching needle fixing plate 22, the free end thereof is sleeved on the pressure plate 24 and movably penetrates through the pressure plate 24 for punching. The buffer spring 23 is sleeved on the spring rod 25, so that the shaking is effectively reduced. The spring rod 25 is fixed on the punch needle fixing plate 22 and is spaced from the pressure plate 24 by a certain clearance so that the pressure plate 24 compresses the buffer spring 23.

Specifically, as shown in fig. 3, the free end of the punch pin 21 is provided with four punch pin grooves 211, and the punch pin grooves 211 are uniformly distributed around the periphery of the end surface. The punching press back thimble recess can make the blind hole of PVC switch box demonstrate protruding muscle, and the PVC switch box that has protruding muscle is qualified product normal drop and does not wear, and external force can be opened to knocking. Staff can be through observing whether PVC switch box after the punching press has protruding muscle as the qualified standard of product.

The specific operation process is as follows: the blind hole processing method is characterized in that a concealed PVC switch box of the blind hole to be processed after injection molding is used as a processed piece, a processed piece processing price cover is placed at the mold core 1, and the surface to be processed is tightly attached to the side surface of the mold core 1. Then, the material pushing rod 12 is pulled to move upwards, the roller 14 pushes the material pushing block 13 to slide out horizontally towards the side surface of the die core main body 11, and the inner wall of the workpiece is tightly pushed to be fixed and not to shake, so that blind hole punching is performed. When the side die 2 punches, the punching needle fixing plate 22 moves close to the die core 1, the pressure plate 24 presses the side wall of the machined part, the buffer spring 23 compresses, and the free end of the punching needle 21 penetrates through the pressure plate 24 to punch a blind hole of the machined part. After the punching is finished, the punching needle fixing plate 22 is far away from the die core 1 and retreats, the pressure plate 24 is separated from a workpiece, the buffer spring 23 is reset, and the punching needle 21 retracts into the pressure plate 24, so that collision damage is avoided. At this time, the material pushing rod 12 is pulled downwards, the roller 14 has a movable space to move to the top position of the material pushing rod 12, the roller slides into the concave section 121 of the material pushing rod 12, the material pushing block 13 is driven to reset by gravity, the workpiece is not pushed tightly any more, and the punched PVC switch box is released from fixation.

The utility model discloses can realize the PVC switch box of different specifications through the height of adjusting the support flitch 16, have stronger commonality, both sides all have punching press side form 2, once can accomplish the punching press of the relative two sides of switch box, production efficiency is high.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a blind hole stamping die which characterized in that: the machining device comprises a mold core (1) for placing a machined part and at least two groups of side molds (2), wherein the surface to be machined of the machined part is tightly attached to the side surface of the mold core (1); the side die (2) is arranged on the horizontal side of the die core (1) and is provided with a punching needle (21) for processing a blind hole, and the side die (2) drives the punching needle (21) to perform reciprocating punching motion towards the side face of the die core (1).

2. The blind hole punching die according to claim 1, wherein: the side molds (2) are divided into two groups, and the two groups of side molds (2) are symmetrically arranged by taking the mold core (1) as the center.

3. The blind hole punching die according to claim 1 or 2, wherein: the mold core (1) comprises a mold core main body (11), a material pushing rod (12), a material pushing block (13) and a roller (14), the material pushing rod (12) is vertically inserted into the center of the mold core main body (11), the material pushing block (13) is arranged in the mold core main body (11) in a sliding mode, and the roller (14) is arranged on the material pushing block (13) and is in point contact with the material pushing rod (12); the material pushing rod (12) is provided with a concave section (121) for adjusting the sliding of the material pushing block (13), and the material pushing rod (12) pushes the material pushing block (13) to horizontally slide out of the side face of the die core main body (11) through the roller (14).

4. The blind hole punching die according to claim 3, wherein: the mold core (1) further comprises a limiting pin (15) used for limiting the position of the material pushing block (13), and the limiting pin (15) penetrates through the material pushing block (13); the material pushing block (13) is correspondingly provided with a pin hole (131), a limiting distance is reserved in the horizontal direction of the pin hole (131), and the movement distance of the material pushing block (13) is equal to the limiting distance of the pin hole (131).

5. The blind hole punching die according to claim 4, wherein: the die core (1) further comprises a material supporting plate (16), wherein the material supporting plate (16) is annular and is sleeved on the outer wall of the die core main body (11) and slides back and forth along the outer wall of the die core main body (11) to support workpieces with different heights.

6. The blind hole punching die according to claim 1 or 2, wherein: the side die (2) comprises a punching needle (21), a punching needle fixing plate (22), a buffer spring (23) and a pressure plate (24), wherein the pressure plate (24) is parallel to the punching needle fixing plate (22) and is connected with the punching needle fixing plate (22) through the buffer spring (23); the fixed end of the punching needle (21) is fixed on the punching needle fixing plate (22), the free end of the punching needle is sleeved on the material pressing plate (24), and the punching needle movably penetrates through the material pressing plate (24) to perform punching.

7. The blind hole punching die according to claim 6, wherein: the free end of the punching needle (21) is provided with a plurality of punching needle grooves (211), and the punching needle grooves (211) are uniformly distributed around the periphery of the end face.

8. The blind hole punching die according to claim 7, wherein: the side die (2) is also provided with a spring rod (25) for guiding the buffer spring (23).

9. The blind hole punching die according to claim 2, wherein: the mold core (1) is a rectangular body, and the side molds (2) are arranged on two sides of the opposite surface of the mold core (1).

10. The blind hole punching die according to claim 3, wherein: the concave section (121) is positioned at one end of the head of the material pushing rod (12).