CN217343124U

CN217343124U - Hollow pipe fitting side cut-out press

Info

Publication number: CN217343124U
Application number: CN202221013038.9U
Authority: CN
Inventors: 刘亚旭; 牛国防
Original assignee: Hubei Dingguagua Kitchenware Co ltd
Current assignee: Hubei Dingguagua Kitchenware Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-02
Anticipated expiration: 2032-04-28

Abstract

The utility model provides a hollow pipe fitting side cut-out press, include: the top surface of the lower die is provided with a plurality of first sliding grooves which are distributed around the central axis of the lower die; the sleeve pipe mold core is vertically and fixedly arranged at the center of the lower mold and used for sleeving the hollow pipe fitting to be processed, and a plurality of stamping holes are formed in the side surface of the sleeve pipe mold core; the punching dies are arranged in the corresponding first sliding grooves in a sliding mode, and core rods corresponding to the punching holes are horizontally arranged on the punching dies; and the upper die is used for driving the plurality of punching dies to translate towards the sleeve die core along the first sliding groove so as to enable the core bar to be matched with the punching holes to punch the side faces of the hollow pipe fittings. The utility model discloses a cut-out press simple structure, convenient operation can once only punch a hole the operation to a plurality of positions in hollow pipe side, and punching efficiency is high with the precision of punching a hole.

Description

Hollow pipe fitting side cut-out press

Technical Field

The utility model relates to a stamping die technical field especially relates to a hollow pipe fitting side cut-out press.

Background

For the processing of the hollow pipe fitting with the hole position on the side surface, two processing modes are generally available, one mode is processing by adopting a laser cutting mode, although the processing precision of the hole position can be ensured, the cost is higher, and the method is not suitable for batch production; and the other method is to adopt a punching die for processing, horizontally clamp the hollow pipe fitting in the processing process, and vertically punch the side surface of the pipe fitting downwards through the punching die. In the mode, the hole position of one side surface of the hollow pipe fitting can be processed at one time, but when the hole positions are formed in a plurality of side surfaces of the hollow pipe fitting, the hollow pipe fitting needs to be rotated and clamped again, so that the punching die is opposite to the corresponding side surface to be punched, and the punching operation of the corresponding side surface is completed in sequence. In this way, when the hollow pipe fitting is clamped and positioned for multiple times, the positioning precision cannot be guaranteed, so that the punching position precision of the side face of the hollow pipe fitting cannot be guaranteed, in addition, the punching operation of multiple side faces of the hollow pipe fitting needs to be completed by the punching die in sequence, and the machining efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a pipe fitting side cut-out press when solving among the prior art cut-out press and carrying out the hole site to a plurality of sides of hollow pipe fitting, the machining precision can't be guaranteed, the problem of inefficiency.

The technical scheme of the utility model is realized like this:

the utility model provides a hollow pipe fitting side cut-out press, include:

the top surface of the lower die is provided with a plurality of first sliding grooves which are distributed around the central axis of the lower die;

the sleeve pipe mold core is vertically and fixedly arranged at the center of the lower mold and used for sleeving the hollow pipe fitting to be processed, and a plurality of stamping holes are formed in the side surface of the sleeve pipe mold core;

the punching dies are arranged in the corresponding first sliding grooves in a sliding mode, and core rods corresponding to the punching holes are horizontally arranged on the punching dies;

and the upper die is used for driving the plurality of punching dies to translate towards the sleeve die core along the first sliding chute so as to enable the core bar to be matched with the punching holes to punch the side faces of the hollow pipe fittings.

On the basis of the technical scheme, preferably, a sliding block is fixedly arranged at one end, far away from the core rod, of the punching die, the sliding block is arranged in an inclined mode, the included angle between the sliding block and the horizontal direction is 45-85 degrees, a second sliding groove connected with the sliding block in a sliding mode is formed in the upper die, and a feeding hole is formed in the middle of the upper die.

On the basis of the technical scheme, the die further comprises a guide piece, the guide piece is fixedly arranged at the center of the lower die, a mounting hole for the sleeve die core to pass through is formed in the central axis of the guide piece, the aperture of the mounting hole is not smaller than the outer diameter of the hole pipe, a guide hole communicated with the mounting hole is horizontally formed in the side face of the guide piece, a core rod passes through the guide hole, and the guide hole, the stamping hole and the core rod are coaxially arranged.

On above-mentioned technical scheme's basis, it is preferred, still include resetting means, resetting means includes first spring and spacing subassembly, first spring level sets up between die and guide, spacing subassembly is provided with two sets ofly at least, and at least two sets of spacing subassemblies are around last mould the central axis equidistant arrangement in the cope match-plate pattern outside, spacing subassembly includes gag lever post, limiting plate and second spring, limiting plate and last mould horizontal fixed connection, leads the lower extreme and the lower mould fixed connection of gag lever post, and the limiting plate is passed in the upper end activity of gag lever post, and the second spring housing is established on the gag lever post.

Further, preferably, the limiting assembly further comprises a fixing plate, the fixing plate is horizontally and fixedly arranged on the bottom surface of the lower die, and the lower end of the limiting rod is vertically and fixedly connected with the fixing plate.

Preferably, spring holes for mounting the first springs are horizontally formed in the punching die and the guide piece.

Preferably, a first blanking hole penetrating through the sleeve mold core is formed in the central axis of the sleeve mold core, the first blanking hole is communicated with the punching hole, a second blanking hole is formed in the fixing plate, and the first blanking hole corresponds to the second blanking hole.

Preferably, the core rod comprises a rod body and a punch, one end of the rod body is horizontally and fixedly connected with the die, the other end of the rod body is horizontally and fixedly connected with the punch, the outer diameter of the punch is smaller than that of the rod body, and the outer diameter of the punch is matched with the inner diameter of the punching hole.

Preferably, the top surface of the upper die is vertically provided with at least two stamping guide columns, and the at least two stamping guide columns are arranged around the central axis of the upper die at equal intervals.

The utility model discloses following beneficial effect has for prior art:

(1) the utility model discloses a hollow pipe fitting side cut-out press through with the vertical cup joint of hollow pipe fitting on the sleeve pipe mold core, through exerting down punching press power to the last mould, the first spout on the horizontal direction edge lower mould of a plurality of die of last mould drive is drawn close to the sleeve pipe mold core, thereby realize punching a hole to a plurality of positions in the hollow pipe fitting side through core bar and punching press hole cooperation, the cut-out press of this embodiment simple structure, convenient operation can once only carry out the operation of punching a hole to a plurality of positions in the hollow pipe fitting side, punching efficiency and punching precision are high;

(2) by arranging the guide piece and arranging the guide hole for the core rod to pass through on the guide piece, a slide way can be provided for the core rod, the core rod is prevented from being deformed or broken during punching, and meanwhile, the forming precision of the hole position of the hollow pipe fitting can be ensured;

(3) by arranging the reset device, the reset device can drive the punching die to automatically reset after the punching is finished, so that the punching operation of the next hollow pipe fitting is facilitated;

(4) through set up the first blanking hole that link up the sleeve pipe mold core in sleeve pipe mold core central axis department, can receive the die-cut material after the hollow pipe fitting punches a hole, avoid die-cut material to block up in the punching press hole, influence follow-up punching operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an assembly structure diagram of a hollow pipe side punching die disclosed by the utility model;

fig. 2 is an exploded schematic view of a hollow pipe side punching die disclosed by the present invention;

fig. 3 is a schematic plan structure view of a hollow pipe side punching die disclosed by the present invention;

the attached drawings are as follows:

1. a lower die; 2. a sleeve mold core; 3. punching a die; 4. an upper die; 11. a first chute; 21. punching a hole; 31. a core bar; 32. a slider; 41. a second chute; 42. a feeding hole; 5. a guide member; 51. mounting holes; 52. a guide hole; 6. a resetting device; 61. a first spring; 62. a limiting component; 621. a limiting rod; 622. a limiting plate; 623. a second spring; 624. a fixing plate; 22. a first blanking hole; 6241. a second blanking hole; 311. a rod body; 312. a punch; 7. punching a guide pillar; p, hollow pipe fitting.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

As shown in figure 1, combine figures 2 and 3, the embodiment of the utility model discloses a hollow pipe fitting side cut-out press, including lower mould 1, sleeve pipe mold core 2, die 3 and last mould 4.

Wherein, lower mould 1 level sets up, and the mould top surface is provided with a plurality of first spouts 11, specifically speaking, the setting of first spout 11 quantity depends on the position distribution of hollow pipe spare side hole site, and in some embodiments, hollow pipe spare side periphery is equallyd divide in the radial direction and is distributed the hole site, and these hole sites have equidistant arrangement around hole pipe spare the central axis, also have non-equidistant arrangement, so, a plurality of first spouts 11 that set up on this embodiment lower mould 1 distribute around lower mould 1 the central axis, and may be equidistant, also may be non-equidistant.

The sleeve mold core 2 is vertically and fixedly arranged at the center of the lower mold 1 and used for sleeving a hollow pipe fitting to be processed, in the embodiment, the hollow pipe fitting P can be a round pipe, a square pipe, an oval pipe, a triangular pipe or a polygonal pipe, and correspondingly, the appearance of the sleeve mold core 2 is matched with the inner contour of the hollow pipe fitting P. The side surface of the sleeve mold core 2 is provided with a plurality of stamping holes 21, the stamping holes 21 correspond to the positions of the side surfaces of the hollow pipe fittings to be processed, and the punching operation of the side surfaces of the hollow pipe fittings can be conveniently completed by the matching of the punching die 3 and the stamping holes 21. In this embodiment, the sleeve core 2 is a clearance fit with the hollow pipe.

The plurality of punching dies 3 are arranged, the number of the punching dies is consistent with that of the first sliding grooves 11, the plurality of punching dies 3 are arranged in the corresponding first sliding grooves 11 in a sliding mode, core bars 31 corresponding to the punching holes 21 are horizontally arranged on the punching dies 3, and the side faces of the hollow pipe fittings also need to be punched along the axial direction, so that a plurality of core bars 31 can be arranged on each punching die 3 in the vertical direction, the core bars 31 can realize the punching of the side faces of the hollow pipe fittings in the axial direction, and it is noted that the sleeve pipe die core 2 also needs to be provided with the punching holes 21 matched with the core bars 31 in the vertical direction.

And the upper die 4 is used for driving the plurality of dies 3 to translate along the first sliding chute 11 towards the bushing die core 2 so that the core bar 31 is matched with the punching hole 21 to punch the side face of the hollow pipe fitting. In the actual operation process, the core bar 31 is close to the hollow pipe fitting sleeved on the sleeve pipe mold core 2, the side face of the hollow pipe fitting is punched, the core bar 31 penetrates through the hollow pipe fitting and then is inserted into the punching hole 21, the punching operation on the side face of the hollow pipe fitting is completed, meanwhile, the punching hole 21 is matched with the core bar 31, the hole forming of the side face of the hollow pipe fitting can be guaranteed to be good, and the blind hole phenomenon is avoided.

Adopt above-mentioned technical scheme, through vertically cup jointing hollow pipe fitting on sleeve pipe mold core 2, through exerting down punching force to last mould 4, it draws close to sleeve pipe mold core 2 to go up the first spout 11 of a plurality of dies 3 of mould 4 drive on the horizontal direction along lower mould 1, thereby realize punching a hole to a plurality of positions of hollow pipe fitting side through core bar 31 and the cooperation of punching press hole 21, the cut-out press of this embodiment simple structure, and convenient for operation, can once only punch a hole the operation to a plurality of positions of hollow pipe fitting side, punching efficiency and punching precision are high.

As some preferred embodiments, in order to realize that the dies 3 horizontally move after the upper die 4 presses down the plurality of dies 3, the present embodiment adopts the following scheme: the sliding block 32 is fixedly arranged at one end, far away from the core rod 31, of the stamping die 3, the sliding block 32 is arranged in an inclined mode, the included angle between the sliding block 32 and the horizontal direction is 45-85 degrees, the second sliding groove 41 connected with the sliding block 32 in a sliding mode is formed in the upper die 4, in the embodiment, the sliding block 32 can be arranged in a T-shaped structure, the sliding block 32 is embedded into the second sliding groove 41, downward pressure is applied to the upper die 4, the upper die 4 extrudes the sliding block 32 through the second sliding groove 41 arranged in an inclined mode, therefore, the stamping die 3 is pushed to be close to the sleeve die core 2 along the first sliding groove 11, and punching operation on the side face of the hollow pipe is achieved.

In this embodiment, the middle of the upper die 4 is provided with a feeding hole 42, so that the sleeve die core 2 can leak out from the feeding hole 42, and the hollow pipe fitting can be conveniently installed on the sleeve die core 2 manually.

As some preferred embodiments, because the core rod 31 belongs to an elongated stamping rod, during the punching process of the core rod 31 and the hollow pipe, the end of the core rod 31 is easy to slide from the side wall of the hollow pipe, which causes deviation of hole site forming, and at the same time, the core rod 31 and the hollow pipe deform or break during the sliding process, for this reason, the guide 5 is further provided, the guide 5 is fixedly provided at the center of the lower die 1, the central axis of the guide 5 is provided with an installation hole 51 for the bushing core 2 to pass through, the aperture of the installation hole 51 is not smaller than the outer diameter of the pipe, which facilitates the hollow pipe to be sleeved in the installation hole 51 between the bushing core 2 and the guide 5, the side of the guide 5 is horizontally provided with a guide hole 52 communicated with the installation hole 51, the guide hole 52 is used for the core rod 31 to pass through, and the guide hole 52, the stamping hole 21 and the core rod 31 are coaxially arranged. By this setting, guiding hole 52 can provide the slide for core bar 31, avoids core bar 31 to warp or fracture when punching a hole, simultaneously, can guarantee hollow pipe spare hole site shaping precision.

In order to make the die 3 accomplish once punching operation after, can reset, make 31 one end of core bar break away from the punching hole 21, make things convenient for the operation of punching a hole of next hollow pipe fitting, this embodiment has set up resetting means 6 and has solved above-mentioned problem, it is specific, resetting means 6 includes first spring 61 and spacing subassembly 62, first spring 61 level sets up between die 3 and guide 5, from this setting, it draws together towards sleeve mold core 2 to go up die 4 pressurized drive die 3, after the operation of punching a hole is implemented to hollow pipe fitting side, it releases the pressure to go up die 4, first spring 61 promotes die 3 and moves towards the direction translation of keeping away from sleeve mold core 2, die 3 passes through slider 32 and drives and goes up die 4 upward translation.

Because the slider 32 slides and sets up in last mould 4, in order to avoid the effort of first spring 61, make slider 32 on the die 3 break away from second spout 41 completely, this embodiment realizes through spacing subassembly 62, it is specific, spacing subassembly 62 is provided with two sets at least, two sets of at least spacing subassemblies 62 are arranged in the mould 4 outside around the central axis of last mould 4 equidistance, spacing subassembly 62 includes gag lever post 621, limiting plate 622 and second spring 623, limiting plate 622 and last mould 4 horizontal fixed connection, lead the lower extreme and the lower mould 1 fixed connection of gag lever post, limiting plate 622 is passed in the upper end activity of gag lever post 621, second spring 623 cover is established on gag lever post 621. Adopt above-mentioned technical scheme, slider 32 is when ordering about last mould 4 rebound, drive limiting plate 622 upwards translation, and carry out the position by the gag lever post 621 top and prescribe a limit to, make and go up mould 4 and die 3 and keep the sliding connection state, simultaneously, it is spacing by a take the altitude to go up mould 4 by gag lever post 621, the elastic action of second spring 623 simultaneously, also can support and hold limiting plate 622, make and go up mould 4 and keep a take the altitude in vertical direction, when the punching press next time, it is when exerted pressure downwards to go up mould 4, can compress second spring 623, last mould 4 that make when promoting the translation of die 3, can steady smooth and easy removal.

Preferably, the position-limiting assembly 62 further comprises a fixing plate 624, the fixing plate 624 is horizontally and fixedly disposed on the bottom surface of the lower die 1, and the lower end of the position-limiting rod 621 is vertically and fixedly connected to the fixing plate 624. From this setting, make things convenient for gag lever post 621 to set up between limiting plate 622 and fixed plate 624, simultaneously through the setting of fixed plate 624, can install whole cut-out press on punching equipment through fixed plate 624.

In the present embodiment, spring holes for mounting the first spring 61 are horizontally opened in both the die 3 and the guide 5.

As some preferred embodiments, a first blanking hole 22 penetrating through the bushing mold core 2 is opened at a central axis of the bushing mold core 2, the first blanking hole 22 is communicated with the punching hole 21, a second blanking hole 6241 is opened on the fixing plate 624, and the first blanking hole 22 corresponds to the second blanking hole 6241. Therefore, the core rod 31 can push the waste punched on the hollow pipe fitting into the first blanking hole 22 from the punching hole 21, and meanwhile, the waste in the first blanking hole 22 is discharged out of the punching die through the second blanking hole 6241, so that the situation that the punched material is blocked in the punching hole 21 to influence the subsequent punching operation is avoided.

As some preferred embodiments, the core bar 31 includes a bar body 311 and a punch 312, one end of the bar body 311 is horizontally and fixedly connected with the die 3, the other end of the bar body 311 is horizontally and fixedly connected with the punch 312, the outer diameter of the punch 312 is smaller than the outer diameter of the bar body 311, and the outer diameter of the punch 312 is matched with the inner diameter of the punching hole 21. By means of the arrangement, the strength of the whole core rod 31 can be enhanced by arranging the rod body 311, deformation or breakage of the core rod 31 can be reduced, the punching operation of the hollow pipe fitting can be completed only by the punch 312 at the end part of the rod body 311, in the embodiment, the outer shape of the punch 312 can be circular, oval, square, triangular or polygonal, meanwhile, the shape of the punching hole 21 is the same as that of the punch 312, and the shape of the punch 312 is matched with the shape of the hole position on the side surface of the hollow pipe fitting.

Preferably, at least two stamping guide posts 7 are vertically arranged on the top surface of the upper die 4, and the at least two stamping guide posts 7 are arranged around the central axis of the upper die 4 at equal intervals. From this setting, through punching press guide pillar 7, can make things convenient for stamping equipment to exert pressure to punching press guide pillar 7 to operation stamping die accomplishes hollow pipe fitting operation of punching a hole, simultaneously, through punching press guide pillar 7, the last mould 4 and the stamping equipment of messenger between exist the material loading space, make things convenient for hollow pipe fitting to carry out vertical material loading.

The utility model discloses a theory of operation is:

install whole stamping die on stamping equipment's workstation, with the vertical cup joint on sleeve pipe mold core 2 of hollow pipe fitting P, exert down stamping force through stamping equipment to last mould 4, it draws close to sleeve pipe mold core 2 to go up the first spout 11 of a plurality of dies 3 of mould 4 drive on the horizontal direction along lower mould 1, thereby realize punching a hole to a plurality of positions of hollow pipe fitting side through core bar 31 and the cooperation of punching press hole 21, the punching die simple structure of this embodiment, and convenient for operation, can once only punch a hole the operation to a plurality of positions of hollow pipe fitting side, punching efficiency and punching precision height.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a hollow pipe fitting side cut-out press which characterized in that includes:

the top surface of the lower die (1) is provided with a plurality of first sliding grooves (11), and the first sliding grooves (11) are distributed around the central axis of the lower die (1);

the sleeve pipe mold core (2) is vertically and fixedly arranged at the center of the lower mold (1) and used for sleeving a hollow pipe fitting to be processed, and a plurality of stamping holes (21) are formed in the side surface of the sleeve pipe mold core (2);

the punching dies (3) are arranged in a plurality of numbers, the punching dies (3) are arranged in the corresponding first sliding chutes (11) in a sliding manner, and core bars (31) corresponding to the punching holes (21) are horizontally arranged on the punching dies (3);

and the upper die (4) is used for driving the plurality of dies (3) to translate towards the sleeve die core (2) along the first sliding chute (11) so as to enable the core bar (31) to be matched with the punching hole (21) to punch the side face of the hollow pipe fitting.

2. The hollow pipe side punching die of claim 1, wherein: a sliding block (32) is fixedly arranged at one end, far away from the core rod (31), of the punch die (3), the sliding block (32) is arranged in an inclined mode, the included angle between the sliding block (32) and the horizontal direction is 45-85 degrees, a second sliding groove (41) connected with the sliding block (32) in a sliding mode is formed in the upper die (4), and a feeding hole (42) is formed in the middle of the upper die (4).

3. The hollow pipe side punching die of claim 1, wherein: the die comprises a lower die (1), and is characterized by further comprising a guide piece (5), wherein the guide piece (5) is fixedly arranged at the center of the lower die (1), a mounting hole (51) for the bushing die core (2) to pass through is formed in the central axis of the guide piece (5), the aperture of the mounting hole (51) is not smaller than the outer diameter of the hole pipe, a guide hole (52) communicated with the mounting hole (51) is horizontally formed in the side surface of the guide piece (5), the guide hole (52) is used for the core rod (31) to pass through, and the guide hole (52), the punching hole (21) and the core rod (31) are coaxially arranged.

4. The hollow pipe side-piercing die of claim 3, wherein: still include resetting means (6), resetting means (6) include first spring (61) and spacing subassembly (62), first spring (61) level sets up between die (3) and guide (5), spacing subassembly (62) are provided with two sets ofly at least, and at least two sets of spacing subassembly (62) are around last mould (4) the central axis equidistant arrangement in last mould (4) outside, spacing subassembly (62) include gag lever post (621), limiting plate (622) and second spring (623), and limiting plate (622) and last mould (4) horizontal fixed connection lead the lower extreme and lower mould (1) fixed connection of gag lever post, and limiting plate (622) are passed in the upper end activity of gag lever post (621), and second spring (623) cover is established on gag lever post (621).

5. The hollow pipe side punching die of claim 4, wherein: the limiting assembly (62) further comprises a fixing plate (624), the fixing plate (624) is horizontally and fixedly arranged on the bottom surface of the lower die (1), and the lower end of the limiting rod (621) is vertically and fixedly connected with the fixing plate (624).

6. The hollow pipe side punching die of claim 4, wherein: spring holes for mounting the first springs (61) are horizontally formed in the punching die (3) and the guide piece (5).

7. The hollow pipe side punching die of claim 5, wherein: the sleeve pipe die core is characterized in that a first blanking hole (22) penetrating through the sleeve pipe die core (2) is formed in the central axis of the sleeve pipe die core (2), the first blanking hole (22) is communicated with the punching hole (21), a second blanking hole (6241) is formed in the fixing plate (624), and the first blanking hole (22) corresponds to the second blanking hole (6241).

8. The hollow pipe side-piercing die of claim 1, wherein: the core rod (31) comprises a rod body (311) and a punch (312), one end of the rod body (311) is horizontally and fixedly connected with the die (3), the other end of the rod body (311) is horizontally and fixedly connected with the punch (312), the outer diameter of the punch (312) is smaller than that of the rod body (311), and the outer diameter of the punch (312) is matched with the inner diameter of the punching hole (21).

9. The hollow pipe side-piercing die of claim 1, wherein: the top surface of the upper die (4) is vertically provided with at least two stamping guide columns (7), and the at least two stamping guide columns (7) are arranged around the central axis of the upper die (4) at equal intervals.