CN209393812U - A Simple Die for Punching Holes on Tubes Without a Die - Google Patents

Abstract

The utility model discloses a simple die for punching holes on a pipe without a die, which comprises an upper die and a lower die. An oblique wedge is installed on the upper part of the oblique wedge, and the bottom of the right side of the oblique wedge is provided with a cut corner, and the left and right sides of the lower mold base are respectively provided with a movable module and a fixed module, and the left top of the movable module is provided with rounded corners, rounded corners Located below the cut corner, a horizontal pipe clamping groove is symmetrically provided on the upper part of the right side wall of the movable module and the upper part of the left side wall of the fixed module, and a vertical punch guide is symmetrically provided in the middle of the top of the two pipe clamping grooves. slot, and a return spring is provided between the lower part of the right side wall of the movable module and the lower part of the left side wall of the fixed module. The utility model can automatically position, clamp and release the pipe fittings, facilitates the loading and unloading of the pipe fittings, and improves the working efficiency of stamping.

Description

A Simple Die for Punching Holes on Tubes Without a Die

technical field

The utility model relates to the technical field of moulds, in particular to a simple die for punching holes on a pipe without a die.

Background technique

At present, the stamping processing method can use simple molds to punch holes for pipe fittings, and the production efficiency is high. Among them, the simple punching die punches a hole with a large diameter (such as 10mm) on a pipe with a large diameter (such as a diameter of 20mm), and the die does not need to be used.

Using a punching die with a die, the long tube caused by punching burrs is not easy to be taken out from the die in the tube, while punching without a die in the tube can solve the problem of taking out parts. However, the current pipe punching die without die support often requires frequent manual positioning and clamping when processing products, which is time-consuming and laborious, and because the punching punch is not guided, the punching punch is often damaged or the precision of the punched hole is low. Phenomenon.

Utility model content

The utility model aims to solve the above-mentioned problems in the prior art, and provides a simple die for punching holes on a pipe without a die, which can automatically position and clamp the pipe fittings automatically.

The technical solution adopted by the utility model to solve its technical problems: a simple mold for punching holes on a tube without a die, including an upper mold and a lower mold, the upper mold includes an upper mold base, and a mold handle is arranged on the top of the upper mold base. A punching punch is fixed in the middle of the bottom of the upper die base, the lower die includes a lower die base, and a wedge is installed at the bottom left of the upper die base. When the outer diameter of the pipe changes greatly, the wedge and the upper mold base are connected by a strong spring. The bottom of the right side of the wedge is provided with a cut corner, and the left and right sides of the lower mold base are respectively equipped with movable modules and fixed module, the movable module can slide left and right on the lower mold base, the bottom of the fixed module is fixedly connected to the lower mold base, the top of the left side of the movable module is provided with rounded corners, the rounded corners are located below the cut corners, and the right side of the movable module A horizontal pipe fitting clamping groove is symmetrically provided on the upper part of the side wall and the upper part of the left side wall of the fixed module, and a vertical punch guiding groove is symmetrically arranged in the middle of the top of the two pipe fitting holding grooves, and the punch guiding groove penetrates the movable module and the fixed module. On the top surface of the module, the guide hole formed when the two punch guide grooves are closed is matched with the punching punch. A return spring is arranged between the lower part of the right side wall of the movable module and the lower part of the left side wall of the fixed module. The lower part of the left side wall of the module is provided with a counterbore, and the lower part of the right side wall of the fixed module is provided with a through hole corresponding to the position of the counterbore. Both the inner end of the countersunk hole and the inner end of the through hole are provided with a reaming hole for placing a return spring. The return spring is sleeved on the countersunk bolt. head.

For further improvement, there are four return springs in total, and the four return springs are symmetrically distributed in pairs on both sides of the punch guide groove, and the two return springs on one side of the punch guide groove are arranged up and down.

As a further improvement, the pipe clamping groove is an arc-shaped groove or a V-shaped groove.

As a further improvement, the plug and the counterbore are threaded, and the plug is provided with a cross groove.

As a further improvement, a reinforcing rib is provided between the right side wall of the fixing module and the lower mold base.

The beneficial effect of the utility model is: a wedge is installed on the bottom left part of the upper mold base of the utility model. When the wedge moves downward on the upper mold, the wedge pushes the movable module inward to clamp the pipe tightly in the pipe clamping groove of the fixed module. After the upper and upper molds go up, the spring of the lower mold pushes the movable block away to realize the automatic positioning and clamping of the pipe fittings and the automatic release of the parts, which saves time and effort and improves the working efficiency of stamping; A vertical punch guide groove is symmetrically set in the middle of the top of the holding groove. When the two punch guide grooves are closed, the guide hole formed when the two punch guide grooves are closed cooperates with the punching punch to avoid damage to the punching punch, and the punched holes have higher precision.

Description of drawings

Fig. 1 is the main view structure schematic diagram of the utility model;

Fig. 2 is a schematic cross-sectional structure diagram of the movable module B and the fixed module D of the present invention;

Fig. 3 is the schematic diagram of the top view structure after removing the upper mold in Fig. 1 of the utility model;

Fig. 4 is the utility model strong spring structural representation;

Explanation of reference signs: 1. mold handle, 2. upper mold base, 3. wedge, 4. punching punch, 5. movable module, 6. fixed module, 7. reinforcing rib, 8. pipe clamping groove, 9 , Punch guide groove, 10, Return spring, 11, Nut, 12, Countersunk head bolt, 13, Reaming hole, 14, Lower mold seat, 15, Cutting corner, 16, Fillet, 17, Counterbore, 18, Plug Head, 19, through hole, 20, strong spring.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described:

Referring to the accompanying drawings: a simple mold for punching holes on a tube without a die in this embodiment includes an upper die and a lower die, the upper die includes an upper die base 2, and the top of the upper die base 2 is provided with a mold handle 1, and the upper die base 2 is provided with a mold handle 1. A punching punch 4 is fixed in the middle of the bottom of the mold base 2, the lower mold includes a lower mold base 14, and a wedge 3 is installed on the bottom left part of the upper mold base 2. When the outer diameter of the pipe changes small, the wedge 3 and the upper mold The seat 2 is fixedly connected. When the outer diameter of the pipe changes greatly, the wedge 3 and the upper mold seat 2 are connected by a strong spring 20. The bottom of the right side of the wedge 3 is provided with a chamfer 15, and the lower mold The upper left and right sides of the base 14 are respectively provided with a movable module 5 and a fixed module 6, the movable module 5 can slide left and right on the lower die holder 14, the bottom of the fixed module 6 is fixedly connected to the lower die holder 14, and the left side of the movable module 5 The top is provided with rounded corners 16, and the rounded corners 16 are located below the cut corners 15. The upper part of the right side wall of the movable module 5 and the upper part of the left side wall of the fixed module 6 are symmetrically provided with a horizontal pipe fitting clamping groove 8, and the two pipe fittings A vertical punch guide groove 9 is symmetrically opened in the middle of the top of the clamping groove 8, and the punch guide groove 9 runs through the top surface of the movable module 5 and the fixed module 6, and the guide groove 9 formed when the two punch guide grooves 9 are closed The hole is matched with the punching punch 4, a return spring 10 is provided between the lower part of the right side wall of the movable module 5 and the lower part of the left side wall of the fixed module 6, and a counterbore 17 is provided on the lower part of the left side wall of the movable module 5, and the The lower part of the right side wall of the fixed module 6 is provided with a through hole 19 corresponding to the position of the counterbore 17, and the counterbore 17 is provided with a countersunk bolt 12, and the counterbore 12 passes through the through hole 19 to connect the nut 11, and the inner end of the counterbore 17 is The inner end of the through hole 19 is provided with a reaming hole 13 for placing the return spring 10, the return spring 10 is sleeved on the countersunk bolt 12, and the counterbore 17 is provided with a counterbore to prevent the head of the countersunk bolt 12 from sinking. Plug 18 for hole 17.

There are four return springs 10 in total, and the four return springs 10 are symmetrically distributed in pairs on both sides of the punch guide groove 9, and the two return springs 10 on one side of the punch guide groove 9 are arranged up and down.

The pipe clamping groove 8 is an arc-shaped groove or a V-shaped groove.

The plug 18 is threadedly connected to the counterbore 17, and the plug 18 is provided with a cross groove.

A reinforcing rib 7 is provided between the right side wall of the fixing module 6 and the lower mold base 14 .

Working principle: Place the pipe fittings to be blanked between the two pipe fitting clamping grooves 8. When the upper mold base 2 goes down, the wedge 3 pushes the movable module 5 to move to the right and close with the fixed module 6, and the two pipe fitting clamping grooves 8 The pipe fittings are positioned and clamped, and the punching punch 4 extends into the guide hole formed when the two punch guide grooves 9 are closed to punch the pipe fittings. After the upper mold base 2 goes up, the return spring 10 between the lower part of the right side wall of the movable module 5 and the lower part of the left side wall of the fixed module 6 pushes the movable module 5 away and loosens the pipe fitting. Use strong spring 20 to connect upper die base 2 instead, improve the working range of the die, and it is not easy to crush the pipe fittings.

Although the present invention has been illustrated and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made within the scope of the claims.

Claims (5)

1. punching simple die on a kind of pipe of no cavity plate, including upper die and lower die, the upper mold includes upper die holder (2), upper mold It is equipped with die shank (1) at the top of seat (2), middle part is fixed with piercing punch (4) under upper die holder (2), and the lower die includes lower die holder (14), it is characterized in that: left part is equipped with an inclined wedge (3) under the upper die holder (2), change hour, inclined wedge (3) in pipe outside diameter To be fixedly connected between upper die holder (2), when pipe outside diameter changes greatly, pass through strong spring between inclined wedge (3) and upper die holder (2) (20) it connects, inclined wedge (3) bottom right side is equipped with corner cut (15), and the right and left is respectively equipped with work to the lower die holder (14) above Dynamic model block (5) and fixed module (6), the active module (5) can horizontally slip on lower die holder (14), the fixed module (6) bottom is fixedly connected lower die holder (14), and active module (5) left side top is equipped with fillet (16), and fillet (16), which is located at, to be cut The lower section at angle (15), active module (5) the right side wall top symmetrically opened up with fixed module (6) left side wall top together with laterally Pipe fitting holding tank (8), two pipe fitting holding tank (8) top centers symmetrically open up one of vertical punch-pin guiding groove (9), Punch-pin guiding groove (9) penetrates through the top surface of active module (5) and fixed module (6), and punch-pin guiding groove (9) described in twice closes up when institute The guide hole of formation and piercing punch (4) cooperate, active module (5) the right side wall lower part and fixed module (6) left side wall lower part Between be equipped with reset spring (10), active module (5) the left side wall lower part be equipped with counterbore (17), the fixed module (6) Right side wall lower part corresponds to counterbore (17) position setting through-hole (19), is equipped with dormant bolt (12) in the counterbore (17), countersunk head spiral shell Bolt (12) passes through through-hole (19) attaching nut (11), and counterbore (17) inner end and through-hole (19) inner end are equipped with multiple for placing The reaming (13) of position spring (10), the reset spring (10) cover on dormant bolt (12), are equipped with and use in the counterbore (17) To prevent the plug (18) of dormant bolt (12) head abjection counterbore (17).

2. punching simple die on a kind of pipe of no cavity plate according to claim 1, it is characterized in that: the reset spring (10) four are had altogether, four reset springs (10) are symmetrically distributed in punch-pin guiding groove (9) two sides, punch-pin guiding groove two-by-two (9) two reset springs (10) of side are to be arranged above and below.

3. punching simple die on a kind of pipe of no cavity plate according to claim 1, it is characterized in that: the pipe fitting holding tank It (8) is arc-shaped slot or V-groove.

4. punching simple die on a kind of pipe of no cavity plate according to claim 1, it is characterized in that: the plug (18) with To be threadedly coupled between counterbore (17), plug (18) is equipped with Phillips-type.

5. punching simple die on a kind of pipe of no cavity plate according to claim 1, it is characterized in that: the fixed module (6) deep floor (7) are equipped between right side wall and lower die holder (14).