CN112808832A

CN112808832A - Double-tube processing method and double-tube processing machine

Info

Publication number: CN112808832A
Application number: CN201911129240.0A
Authority: CN
Inventors: 林伯忠
Original assignee: Jiazhong Vehicle Equipment Co ltd
Current assignee: Jiazhong Vehicle Equipment Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-05-18

Abstract

The invention provides a double-pipe processing method which is used for solving the problems of complicated processing steps and inconsistent specification of finished products when the existing double pipes are combined. Comprises the following steps: positioning two pipe fittings to be processed by a clamp; stamping the two pipe fittings at least once, and respectively forming a first stopping convex part on the peripheral surfaces of the two pipe fittings; sleeving the two through holes of the combining seat on the two pipe fittings respectively, wherein the first end of the combining seat is abutted against the first stopping convex part of the two pipe fittings; and stamping the two pipe fittings at least once, forming a second stopping convex part on the peripheral surfaces of the two pipe fittings respectively, and enabling the second stopping convex parts of the two pipe fittings to be abutted against the second end of the combination seat so as to clamp and position the combination seat by the first stopping convex parts and the second stopping convex parts of the two pipe fittings together.

Description

Double-tube processing method and double-tube processing machine

Technical Field

The present invention relates to a pipe processing method and a pipe processing machine, and more particularly, to a double pipe processing method and a double pipe processing machine for coupling two pipes to a coupling seat.

Background

Referring to fig. 1, a conventional air-conditioning duct 9 for a vehicle is shown, wherein the conventional air-conditioning duct 9 for a vehicle is formed by combining two ducts 91 and a combining seat 93. In the industry, the conventional air conditioning tube 9 for a vehicle is manufactured by the following steps: firstly, the two pipes 91 to be processed are respectively punched by a punch at least once, so that the outer peripheral surfaces of the two pipes 91 respectively form a stopping part 92, the combining seat 93 is sleeved on the two pipes 91, one end of the combining seat 93 is abutted against and attached to the two stopping parts 92, and the other end of the combining seat 93 and the outer peripheral surfaces of the two pipes 91 form a welding part 94 in a welding manner, so that the combining seat 93 is prevented from falling off due to vibration, and after the welding operation is finished, the two pipes 91 protruding out of the welding part 94 are cut off, and are conveniently connected to air conditioning components of a vehicle. Since the two pipes 91 and the coupling seat 93 are coupled by welding, the process is complicated, and the conventional air-conditioning pipe 9 for a vehicle cannot be smoothly coupled and used during assembly due to the occurrence of defective products caused by the error of the welding process of workers.

In view of the above, there is a need for improvement in the conventional pressing method.

Disclosure of Invention

To solve the above problems, an object of the present invention is to provide a double tube processing method and a double tube processing machine, which can continuously and rapidly punch the two tubes to improve the operation efficiency and make the specifications of the finished products consistent.

In the present invention, the directions or their approximate expressions, such as "front", "back", "left", "right", "top", "bottom", "inner", "outer", "side", etc., are mainly referred to the directions of the attached drawings, and the directions or their approximate expressions are only used for the purpose of explaining and understanding the embodiments of the present invention, but are not used to limit the present invention.

The use of the terms "a" or "an" for the elements and components described throughout this disclosure is for convenience only and provides a general sense of the scope of the invention; in the present invention, it is to be understood that the singular includes plural unless it is obvious that it is meant otherwise.

The terms "combined," "combined," or "assembled" as used herein mainly include the forms of the components that can be separated without destroying the components after being connected, or the components that can not be separated after being connected, and can be selected by one of ordinary skill in the art according to the material or assembly requirement of the components to be connected.

In order to achieve the purpose, the invention adopts the technical scheme that:

a method of manufacturing a double tube, comprising the steps of:

positioning two pipe fittings to be processed by a clamp;

stamping the two pipe fittings at least once, and respectively forming a first stopping convex part on the peripheral surfaces of the two pipe fittings;

sleeving the two through holes of the combining seat on the two pipe fittings respectively, wherein the first end of the combining seat is abutted against the first stopping convex part of the two pipe fittings; and

and stamping the two pipe fittings at least once, respectively forming a second stopping convex part on the peripheral surfaces of the two pipe fittings, wherein the second stopping convex parts of the two pipe fittings are abutted against the second end of the combination seat, and the combination seat is clamped and positioned by the first stopping convex parts and the second stopping convex parts of the two pipe fittings together.

In the double-pipe processing method, the two through holes respectively form an annular groove at the first end of the combination seat, and the annular grooves are respectively abutted against the first stopping convex parts of the two pipe fittings.

In the double-pipe processing method, the two through holes respectively form an annular containing groove at the second end of the combining seat, and the second stopping convex parts of the two pipe fittings are respectively abutted against the two annular containing grooves.

In the double-pipe processing method, the two first stopping convex parts and the two second stopping convex parts are formed by punching a plurality of stamping parts in sequence relative to the clamp in a displacement mode.

A dual tube processing machine, comprising:

a clamp for positioning two pipes to be processed;

the guide module is provided with at least one guide rail, the guide rail is parallel to a first direction, a carrier plate is arranged on the guide rail in a displaceable manner, a plurality of slide rails are positioned on the carrier plate and are parallel to a second direction, and the second direction is intersected with the first direction;

the plurality of stamping parts are respectively arranged on the plurality of slide rails in a displaceable manner, and each stamping part is provided with a stamping head; and

and the pushing module is opposite to the clamp and positioned at two sides of the guide module respectively and used for pushing the stamping part opposite to the clamp so as to stamp the two pipe fittings by the stamping head.

The double-pipe processing machine is characterized in that the clamp is provided with a first clamping die and a second clamping die, two pipe clamping openings are formed by the first clamping die and the second clamping die when the first clamping die and the second clamping die are clamped, and the two pipe clamping openings are opposite to the pushing module.

The double-pipe processing machine is characterized in that the stamping head is located at one end of the stamping part and fixed on a sliding block, the stamping head and the sliding block can slide along the second direction, the other end of the stamping part is provided with a push rod, and the push rod is pushed by a pushing part of the pushing module to enable the sliding block to move relative to the sliding rail.

The double-tube processing machine is characterized in that the stamping part is provided with a first clamping part located at the free end of the push rod, the pushing part is provided with a second clamping part, and when the stamping part is opposite to the clamp, the first clamping part and the second clamping part are clamped.

The double-tube processing machine is characterized in that the first clamping part is composed of a butting part and a reducing part, the reducing part is positioned between the butting part and the push rod, the second clamping part is provided with a clamping groove, and the clamping groove is kept smooth in the first direction, so that the first clamping parts of the plurality of stamping parts can sequentially penetrate through and clamp the clamping groove.

In the double-tube processing machine, the second clamping part is provided with a claw part which is formed by two convex blocks which protrude in opposite directions, and the two convex blocks are oppositely positioned on the reducing part, so that the stamping part can slide in the second direction and perform stamping.

Accordingly, the double-tube processing method and the double-tube processing machine of the invention replace a welding fixing mode by a continuous stamping processing mode, and have the multiple effects of increasing the operation efficiency, improving the quality of finished products, simplifying and automating the steps, reducing the manufacturing cost and the like.

Wherein, the two through holes respectively form an annular groove at the first end of the combining seat, and the annular grooves are respectively abutted against the first stopping convex parts of the two pipe fittings. Therefore, the first stopping convex part can be hidden in the annular groove, and the effects of improving the appearance and effectively utilizing the space are achieved.

Wherein, the two through holes respectively form a ring-shaped containing groove at the second end of the combining seat, and the second stopping convex parts of the two pipe fittings respectively abut against the two ring-shaped containing grooves. Therefore, the annular containing groove can be tightly matched with the pipe fitting during stamping processing, and has the effect of fixing the combination seat and the two pipe fittings.

The plurality of stamping parts sequentially move relative to the clamp to stamp and form the two first stopping convex parts and the two second stopping convex parts. Therefore, the clamp is kept still, and the plurality of stamping parts are controlled to sequentially move relative to the clamp, so that the stamping part clamping device has the effects of improving the operation efficiency and avoiding the dislocation of the stamping parts and the clamp.

The clamp is provided with a first clamping die and a second clamping die, and the first clamping die and the second clamping die jointly form two pipe clamping openings when clamped together, and the two pipe clamping openings are opposite to the propelling module. Therefore, the two pipe fittings can be clamped and positioned by the two pipe clamping openings, and the clamping stability is improved.

Wherein, this punching press head is located the one end of this stamping workpiece, and this punching press head is fixed in a slider, and this punching press head and this slider can slide along this second direction, and the other end of this stamping workpiece has a push rod, and this propulsion module promotes this push rod by a top pushing member, makes this slider for this slide rail displacement. Therefore, the method has the effects of increasing the operation convenience and improving the operation efficiency.

The stamping part is provided with a first clamping part located at the free end of the push rod, the pushing part is provided with a second clamping part, and when the stamping part and the clamp are opposite, the first clamping part and the second clamping part are clamped. Therefore, the first clamping part and the second clamping part can be clamped mutually to ensure that the stamping part and the clamp are aligned exactly, and the stamping part has the effects of improving the operation accuracy and being convenient to position.

The first clamping part is composed of a top abutting part and a reducing part, the reducing part is located between the top abutting part and the push rod, the second clamping part is provided with a clamping groove, the clamping groove is kept smooth in the first direction, and the first clamping parts of the plurality of stamping parts can sequentially penetrate through and clamp the clamping groove. Therefore, the plurality of stamping parts can be sequentially and oppositely positioned on the pushing piece by means of the guide rail, so that the first clamping part and the second clamping part are clamped, and the effects of positioning and improving the operation efficiency are achieved.

The second clamping part is provided with a claw part which is formed by two convex blocks which protrude in opposite directions, and the two convex blocks are oppositely positioned on the reducing part, so that the stamping part can slide in the second direction and perform stamping. Thus, the claw part can push and pull back the stamping part, and the effect of controlling the stamping part is achieved.

Drawings

Fig. 1 is a partially enlarged view of a conventional air conditioning duct for a vehicle.

Fig. 2 is a sectional view of the double pipe processing method of the present invention positioning two pipe members in a jig.

FIG. 3 is a view of the two pipes shown in FIG. 2 being formed with a first stop protrusion.

FIG. 4 is a cross-sectional view of a coupling seat disposed on two pipes as shown in FIG. 3.

Fig. 5 is a view of two pipes respectively molded with a second stopping protrusion as shown in fig. 4.

FIG. 6 is a perspective view of a preferred embodiment of the dual tube converting machine of the present invention.

Fig. 7 is a sectional view taken along line a-a of fig. 6.

Description of reference numerals: [ the invention ] 1 jig; 11 a first clamping die; 12 a second clamping die; 13 pipe clamping openings; 2, guiding the module; 21 a guide rail; 22 a carrier plate; 23 slide rails; 3 stamping parts; 31 stamping a head; 32 slide blocks; 33 a push rod; 34a first clamping part; 34a against the top; 34b a reduced diameter portion; 4a propulsion module; 41 pushing the piece; 42 a second clamping part; 421 a clamping groove; 422 claw parts; a first direction D1; a second direction D2; e, working space; h, punching; t pipe fitting; a first end of Ta; a Tb second end; t1 first stop tab; t2 second stop projection; a W coupling seat; a first end Wa; a second end of Wb; a W1 annular groove; w2 annular groove; (existing) 9 existing vehicle air conditioning plumbing; 91 a pipe fitting; 92 a stopper portion; 93 a coupling seat; 94 welding part.

Detailed Description

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail as follows:

a preferred embodiment of the method for manufacturing a dual tube of the present invention comprises the steps of:

referring to fig. 2, a fixture 1 is used to position two pipes T to be processed. In the present embodiment, the two pipes T are inserted into the fixture 1 to facilitate the machining by the machine tool. In addition, the two pipes T can be made of iron, aluminum or stainless steel, etc., and the present invention is not limited thereto, so as to meet the use requirement of the worker.

Referring to fig. 3, after the two pipes T are positioned by the fixture 1, the first ends Ta of the two pipes T are fixed to the fixture 1, and the pressing tool simultaneously pushes the two pipes T from the second ends Tb of the two pipes T and presses the two pipes T at least once, so as to form a first stopping protrusion T1 on the outer circumferential surface of each of the two pipes T.

Referring to fig. 4, the two through holes H of the combining seat W are respectively sleeved on the two tubes T from the second ends Tb of the two tubes T, and the first end Wa of the combining seat W abuts against the first stopping protrusion T1 of the two tubes T. In this embodiment, the coupling seat W has a first end Wa and a second end Wb opposite to each other, the two through holes H respectively form an annular groove W1 at the first end Wa of the coupling seat W, the annular groove W1 respectively abuts against the first stopping protrusions T1 of the two tubes T, and the first stopping protrusions T1 are hidden in the annular groove W1, so as to increase the external appearance and effectively utilize the space.

Referring to fig. 5, after the connecting seat W is installed, the two tubes T are pressed at least once to form a second stopping protrusion T2 on the outer peripheral surface of the two tubes T, and the second stopping protrusion T2 of the two tubes T abuts against the second end Wb of the connecting seat W, so that the first stopping protrusion T1 and the second stopping protrusion T2 of the two tubes T clamp and position the connecting seat W together. In this embodiment, the two through holes H respectively form an annular accommodating groove W2 at the second end Wb of the coupling seat W, and the annular accommodating groove W2 is used for shaping the two tubes T, so that the second stopping protrusions T2 of the two tubes T respectively abut against the two annular accommodating grooves W2.

According to the steps, the double-pipe processing method of the invention can process the two pipe fittings T in a continuous stamping mode so as to rapidly combine the two pipe fittings T with the combination seat W; in detail, the double tube processing method may utilize displacement of a plurality of stamping parts relative to the fixture 1 in sequence to stamp-form the two first stopping protrusions T1 and the two second stopping protrusions T2, that is, during the process of forming the two first stopping protrusions T1 and the two second stopping protrusions T2, the two tube T are kept positioned on the same fixture 1, and the fixture 1 is not moved, the displacement of the plurality of stamping parts relative to the fixture 1 in sequence is controlled, the stamping parts opposite to the fixture 1 are used to stamp the two tube T, and the stamping steps are repeatedly performed to continuously stamp the two tube T, so as to complete the shaping and processing of the two tube T. In other embodiments, the arrangement may be reversed, so that the plurality of stamping parts remain stationary, and the fixture 1 is controlled to move relative to the plurality of stamping parts, and then the stamping parts corresponding to the fixture 1 stamp the two pipe fittings.

Referring to fig. 6 and 7, the present invention further provides a double pipe processing machine for implementing the above-mentioned double pipe processing method, the double pipe processing machine comprises a fixture 1, a guiding module 2, a plurality of stamping parts 3 and a pushing module 4, the plurality of stamping parts 3 are disposed on the guiding module 2, the fixture 1 is opposite to the pushing module 4 and respectively disposed at two sides of the guiding module 2, so as to push the stamping parts 3 opposite to the fixture 1.

The fixture 1 is used to position two pipes T to be processed, so as to prevent the two pipes T from falling off and affecting the quality of stamping. In this embodiment, the fixture 1 has a first clamping mold 11 and a second clamping mold 12, so that the first clamping mold 11 and the second clamping mold 12 can move toward a first direction D1, when the first clamping mold 11 and the second clamping mold 12 are clamped together, two pipe clamping openings 13 and an operating space E can be formed together, the two pipe clamping openings 13 are opposite to the pushing module 4, the two pipe clamping openings 13 are used for clamping the two pipes T, and the operating space E can accommodate therein the second ends Tb and the to-be-processed parts of the two pipes T, so that the two pipes T can be stamped in the operating space E. For example, but not limited to, the first clamp die 11 and the second clamp die 12 can clamp the two pipes T therebetween by means of oil pressure.

The guiding module 2 is used for carrying the plurality of stampings 3, the guiding module 2 has at least one guiding rail 21, the guiding rail 21 is parallel to a first direction D1, a carrier plate 22 is movably disposed on the guiding rail 21, so that the carrier plate 22 can move back and forth in the first direction D1, the plurality of sliding rails 23 are disposed on the carrier plate 22 and parallel to a second direction D2, the second direction D2 intersects with the first direction D1, so that the plurality of stampings 3 can freely slide along the second direction D2.

The plurality of stamping parts 3 are located on the carrier plate 22 of the guide module 2, the plurality of stamping parts 3 are respectively movably disposed on the plurality of slide rails 23, one end of each stamping part 3 is provided with a stamping head 31, each stamping head 31 is respectively fixed to a slide block 32, so that each stamping head 31 and each slide block 32 can slide along the second direction D2, and the other end of each stamping part 3 is provided with a push rod 33, so that each stamping part 3 can be respectively pushed by each push rod 33 one by the push module 4, so that the slide block 32 is displaced relative to the slide rails 23, thereby processing and shaping the two pipe fittings T. Preferably, the free end of the push rod 33 may further have a first detent portion 34, for example, but not limited to, the first detent portion 34 may be composed of an abutting portion 34a and a reduced diameter portion 34b, the abutting portion 34a may be abutted and pushed by the pushing module 4, and the reduced diameter portion 34b is located between the abutting portion 34a and the push rod 33 for positioning and engaging.

The pushing module 4 is opposite to the clamp 1 and located at two sides of the guiding module 2 respectively. In this embodiment, the pushing module 4 may have a pushing member 41, and the pushing member 41 is opposite to the two pipe clamping openings 13, so that when the pushing module 4 pushes the stamping part 3, the stamping head 31 can accurately stamp the two pipes T; preferably, the pushing module 4 may further have a second engaging portion 42, and when the stamping part 3 is opposite to the fixture 1, the second engaging portion 42 can engage with the first engaging portion 34 to achieve the positioning function. In this embodiment, the second latching portion 42 has a latching groove 421, the latching groove 421 keeps unblocked in the first direction D1, so that the first latching portions 34 of the plurality of stamping parts 3 can sequentially pass through and latch, the free end of the second latching portion 42 can also have a claw 422, the claw 422 can be two convex blocks protruding in opposite directions, and the two claws 422 are aligned to the reduced diameter portion 34b, so as to position and push and pull the first latching portion 34 by the claw 422, so that the stamping part 3 can slide in the second direction D2 for stamping, and the claw 422 pulls back and resets the stamping part 3 after stamping.

According to the above structure, when the double pipe processing machine of the present invention is used, the two pipe T is clamped by the two pipe notches 13, and the guide rail 21 is used to guide the stamping part 3 to move in the first direction D1, so that the stamping part 3 carried on each slide rail 23 is opposite to the clamp 1, and the first engaging portion 34 is engaged with the second engaging portion 42, so that the stamping head 31 is exactly aligned with the two pipe T; after the alignment is completed, the pushing module 4 pushes the stamping part 3, so that the sliding block 32 slides on the sliding rail 23 along the second direction D2 to complete the single stamping. Repeating the above steps, and moving the guide rail 21 in the first direction D1, so that the plurality of stamping parts 3 are sequentially aligned to the fixture 1, and different stamping parts 3 are used to stamp the two tubes T, so as to complete the shaping and processing of the two tubes T by continuous stamping. In addition, because different stamping materials can accept different stamping times and single deformation degrees, a user can adjust the stamping times and strength according to different materials to be processed so as to avoid the materials from being broken and damaged due to excessive extrusion.

According to the steps and the structure, when the double-pipe processing method is applied to the double-pipe processing machine, a worker firstly arranges two pipes T to be processed on the two pipe clamping openings 13 formed by the first clamping die 11 and the second clamping die 12 of the clamp 1, and enables the part to be processed to protrude into the operation space E so as to facilitate the subsequent punching processing; after the two pipes T are positioned, the guiding module 2 drives the plurality of stamping parts 3 to move, so that the stamping head 31 is aligned with the two pipe clamping openings 13, and the pushing module 4 pushes the stamping parts 3 to simultaneously stamp the two pipes T at least once, so that the outer peripheral surfaces of the two pipes T can be respectively formed into the two first stopping convex parts T1; after the first stopping protrusion T1 is formed, a worker then sleeves the connecting seat W on the two tubes T, so that the first end Wa of the connecting seat W abuts against the two first stopping protrusions T1 on the two tubes T, and the punching step for forming the first stopping protrusion T1 is repeated, so that the two second stopping protrusions T2 are formed on the outer peripheral surface of the two tubes T at the second end Wb of the connecting seat W, respectively, and the connecting seat W is fixed to the outer periphery of the two tubes T by the first stopping portion T1 and the second stopping portion T2, thereby obtaining the double-tube air conditioning tube of the present invention.

In summary, the double-tube processing method and the double-tube processing machine of the present invention replace the fixing manner of welding by the continuous stamping manner, and have the multiple effects of increasing the operation efficiency, improving the quality of the finished product, simplifying and automating the steps, reducing the manufacturing cost, and the like.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method of manufacturing a double tube, comprising the steps of:

positioning two pipe fittings to be processed by a clamp;

2. The method as claimed in claim 1, wherein the two through holes respectively form an annular groove at the first end of the connecting seat, and the annular grooves respectively abut against the first stopping protrusions of the two pipes.

3. The method as claimed in claim 1, wherein the two through holes respectively form an annular receiving groove at the second end of the coupling seat, and the second stopping protrusions of the two pipe fittings respectively abut against the two annular receiving grooves.

4. The double tube processing method as claimed in claim 1, wherein the two first stopping projections and the two second stopping projections are press-formed by sequentially displacing a plurality of pressing members with respect to the jig.

5. A dual tube processing machine, comprising:

a clamp for positioning two pipes to be processed;

6. The dual tube processing machine of claim 5 wherein the fixture has a first clamping die and a second clamping die that together form two tube jaws when clamped together, the two tube jaws being opposite the pushing module.

7. The dual tube processing machine according to claim 5 wherein the punch is located at one end of the stamping and is secured to a slide, the punch and slide being slidable in the second direction, the stamping having a push rod at the other end, the pusher module being movable by a pusher member to displace the slide relative to the slide.

8. The machine of claim 7, wherein the stamping member has a first detent portion at the free end of the push rod, and the pushing member has a second detent portion, such that the first detent portion engages the second detent portion when the stamping member is positioned relative to the clamp.

9. The double tube processing machine of claim 8 wherein the first engaging portion comprises a top portion and a reduced diameter portion, the reduced diameter portion is located between the top portion and the push rod, the second engaging portion has an engaging groove, the engaging groove is kept open in the first direction, such that the first engaging portions of the plurality of stamping members can sequentially pass through and engage the engaging groove.

10. The double tube processing machine according to claim 9, wherein the second catch portion has a claw portion formed by two protrusions protruding in opposite directions, and the pair of protrusions are located at the reduced diameter portion so that the pressing member can slide in the second direction and perform pressing.