JPH072123Y2 - Pipe terminal processing equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe terminal processing apparatus for forming end portions of a pipe material in a multi-stage manner with the same processing axis into a cross-sectional spectacle shape.

[0002]

2. Description of the Related Art Conventionally, when processing a branch pipe for piping in which the end portion of a cylindrical pipe material has a substantially spectacle-shaped cross section as shown in FIG. 13 (d), it is shown in FIG. 13 (a). Expand the diameter of the end of the pipe material (Fig. 13 (b)), and
The second special-purpose machine forms the cross-section into a substantially oval shape (FIG. 13 (c)), and the second special-purpose machine forms the cross-section into a substantially glasses shape. In addition to the need for specialized machines, one worker must be placed in each of these specialized machines, and the pipe material transfer and positioning work must be performed between each specialized machine, which is extremely troublesome and therefore enormous. It has a drawback that it requires labor and cannot save labor.

[0003]

According to the present invention, when a pipe material is supplied, it is possible to process the final shape to a substantially spectacle-shaped cross section without requiring manpower (operator and carrier of each dedicated machine). It is intended to provide such a pipe terminal processing device.

[0004]

DISCLOSURE OF THE INVENTION The present invention is based on the above-mentioned conventional technique and requires a plurality of dedicated machines, a plurality of workers arranged in each dedicated machine, and a transfer operation. In consideration of the problem that requires an operator, the clamp base and the sub clamp base are arranged on one side of the machining axis of the base, the stopper is provided on the clamp base, and the forming hole and the molding are formed on the sub clamp base. Protrusions are provided, and the punch pressing shafts with elliptical punches and spectacle punches mounted respectively are made to move forward and backward, and a large number of slide bodies are mounted in parallel at a predetermined interval. By arranging punch cylinders that can be moved in and out freely, the pipe material is held and fixed at one place, and each forming punch is sequentially positioned on the same axis as the processing axis of the end portion of the pipe material. In multiple stages In the manner to molding by continued and, is obtained by solving cents above problems.

[0005]

In the present invention, the pipe material is supplied from the supply chute and placed in the guide groove, and then the pipe material is inserted so as to project forward from the clamp base, and the upper base of the clamp base is lowered. Next, by selecting the elliptical punch of the punch pressing shaft by sliding the slide body back and forth, positioning it so that it matches the machining axis, and plunging the elliptical punch into the end of the pipe material with the punch cylinder. The end portion of the pipe material is formed into a substantially oval cross section.

[0006] Next, the eyeglass punch is selected and positioned, and then the protrusion of the eyeglass punch is fitted into the ellipse of the end portion of the pipe material formed into the elliptical cross section by a punch cylinder, and 2 The two small circles are prevented from being deformed, and the lower mold of the sub clamp base is moved up and the upper mold is moved down to join the sub clamp bases. At this time, the central part of the ellipse of the pipe material is the sub clamp. The molding protrusions on the table form a central joint flat surface, which is molded into a substantially spectacle-shaped cross section.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a main body of a pipe terminal processing apparatus for processing a branch pipe from an expanded pipe material W, and the main body 1 is a work carrying-in section. 2, a work holding part 3, a work forming part 4, a punch switching part 5 and a punch pressing part 6.

First, in the work carrying-in section 2, the pipe material W is cut into a predetermined size by another device and formed into a stepped cylindrical shape ((b) of FIG. 13). A guide groove 8 formed in a V-block shape in the left-right direction
A supply chute 10 for supplying the pipe material W one by one via the inclined plate 9 is provided at the rear part of the guide groove 8, and the guide groove 8 is substantially the same as the machining axis XX. Is made.

Reference numeral 11 denotes a work inserting device for inserting the pipe material W from the work carrying-in portion 2 into the work holding portion 3, and the work inserting device 11 is a holding member 1 erected on both sides of the base 7.
Two guide rods 13 and 13a are laid between the two 12a in parallel with the machining axis XX, and the base of the cylinder 14 is held between the guide rods 13 and 13a on the holding member 12 on the side of the work holding part 3. The ends are fixed.

Reference numeral 15 denotes a holding member 16, between the guide rods 13 and 13a.
A sliding body slidably mounted on the guide rods 13 and 13a via 16a, the tip of the rod 17 of the cylinder 14 is fixed to the sliding body 15, and the sliding body 15 has a machining axis. X
-Fix the protruding piece 18 that protrudes downward on the same axis as X.
An insertion rod 19 extending toward the guide groove 8 and arranged coaxially with the machining axis XX is fixed to the lower end of the protruding piece 18.

Next, in the work holding portion 3, a clamp base 21 is provided on the base end side of the base 20 so as to be connected to the work carry-in portion 2, and the clamp base 21 faces the lower base 22 and the lower base 22. The lower table is composed of the upper table 23 that can move up and down
Support grooves 24, 24a are formed on the upper surface of 22 and the lower surface of the upper table 23 in the machining axis X-X direction, and stepped grooves 25, 25a are formed at the base end portions of the support grooves 24, 24a. By overcoming the material W, the height difference between the work carry-in section 2 and the work holding section 3 is eliminated.

Reference numeral 26 is a stopper projectingly fixed to the lower surface of the upper table 23. The stopper 26 is located in the central portion of the clamp table 21 by blocking a part of the support grooves 24, 24a, and on the upper surface of the lower table 22. Forms a stopper hole 27 into which the stopper 26 is fitted.

Reference numeral 28 denotes a work release part, which is the work release part.
28 is installed inside the front edge of the clamp base 21, high-pressure air is ejected from the work release part 28, and the pipe material W blown by this high-pressure air is stored in the hopper 29 on the front part of the clamp base 21. It

Next, in the work forming section 4, 30 is a base.
It is a sub-clamp stand connected to the clamp stand 21 on the 20
The sub clamp base 30 includes a lower mold 31 and an upper mold facing the lower mold 31.
The lower die 31 and the upper die 32 are both vertically movable, and have the same height as the machining axis XX when the two are joined.

Reference numerals 33 and 33a denote eyeglass molding portions formed on the upper surface of the lower die 31 and the lower surface of the upper die 32, respectively, on the base end side thereof. The eyeglass molding portions 33 and 33a are the upper surface of the lower die 31 and the upper die 32. Forming holes 34 and 34a are formed on the lower surface of the
Forming projections 35, 35a forming a central joint flat surface T of the pipe material W are formed at the center of a, and the forming hole 3 is formed.
Punch insertion holes 36, 36a, which are larger than the molding holes 34, 34a, are formed at the front ends of the holes 4, 34a.

Next, in the punch switching unit 5, 37 is a slide body on which a plurality of punches 38, 38a are mounted, and a base 20
Guide rail in the upper middle part in the direction orthogonal to the machining axis XX
39 and 39a are provided, linear guides 40 and 40a are slidably mounted on the guide rails 39 and 39a, and a slide body 37 is mounted on the linear guides 40 and 40a.

Numerals 41, 41a, ... Are punch pressing shafts mounted on the slide body 37 in parallel with each other so as to be movable back and forth in the machining axis X--X direction and at a predetermined interval.
The punch mounting portions 42, 42a ... Are provided at the front ends of the 41a, and the fitting portions 43, 43a are formed at the rear end.

Reference numeral 44 denotes a positioning mechanism, which fixes a plate body 45 formed in a substantially rectangular shape on one side of the slide body 37 so as to project, and has serrated groove portions 46 on the lower surface of the plate body 45 in the front-rear direction at predetermined intervals. , 46
a is formed, and the rising portions of the groove portions 46, 46a are formed as the positioning surfaces 47, 47a .. At the same time, inclined portions 49, 49a are formed via the flat surface portions 48, 48a. At the lower facing position of ..., the locking surface 50 and the rounded sliding surface 51 on the tip end
The positioning pin 52 formed with is attached to the tip of the rod 54 of the cylinder 53 fixed below the base 20, and is attached so as to be able to move upward and downward from the upper surface of the base 20.

Reference numeral 55 denotes a drive device for the slide body 37, which is a cylinder 57 in which the front end of the slide body 37 is connected to the tip of a rod 56.
Is mounted on the base 20, and the sensors 58, 58a ... Which detect the moving position (working amount) of the cylinder 57 are mounted on the cylinder.
A plurality of 57 are arranged at a predetermined interval.

In FIG. 4, 59 is a clip ball, 60 is a spring that presses the clip ball 59, and 61 is a clip ball 59.
Numeral 62 is a concave portion that fits with, concave groove 62 that regulates sliding of the punch pressing shafts 41, 41a ..., and 63 is a stopper that is inserted into the concave groove 62.

Next, in the punch pressing portion 6, 64 is a base.
20 is a punch cylinder disposed above the punch cylinder 64, the punch cylinder 64 is located on the machining axis XX, and
A connecting portion 67 having a fitting portion 66 capable of coming into contact with and separating from the fitting portions 43, 43a of the punch pressing shafts 41, 41a ... Is attached to the tip of the 65, and the connecting portion 67 is attached to the work holding portion 3 and the work forming portion. It is arranged so as to be pressed toward the 4 side.

Reference numeral 68 is a stroke adjusting portion of the punch cylinder 64.

Next, a punch 3 used for processing a pipe end
Explaining 8 and 38a, the two punches 38 and 38a consist of an oval punch 69 and an eyeglass punch 70.
Multiple may be used.

The elliptical punch 69 is used in the first step of processing the expanded pipe material W as shown in FIG. 13B, and the punch 71 has a punch pressing shaft at the base 71 thereof. 41,
A fitting portion 72 for fitting with the punch mounting portions 42, 42a of 41a is formed, and a taper surface 73 is formed at the front end of the base portion 71, and the taper surface 73 is formed continuously. An elliptical protrusion 74 having a diameter is formed.

The eyeglass punch 70 is used in the second step. The base portion 71 of the eyeglass punch 70 is formed in the same manner as the base portion 71 of the oval punch 69, and the front portion of the base portion 71 is formed. The mounting portion 75 is attached, and cylindrical protrusions 76, 76a formed in a predetermined diameter at a left and right center of the mounting portion 75 with a predetermined interval are extended forward in parallel.

A spring 77 is wound around the projecting portion 74 of the oval punch 69. When the oval punch 69 is separated from the pipe material W by the action of the spring 77, the oval punch 69 is removed.
The pipe material W is positioned by separating the pipe material W from the pipe material W, and when the elliptical punch 69 is moving forward, the pipe material W is retracted and brought into contact with the stopper 26 of the clamp base 21.

Next, the operation of the pipe end processing apparatus according to the present invention will be described.
The slide body 15 supplied from the above is placed in the guide groove 8 and the cylinder 14 of the work insertion device 11 is operated to move the slide body 15 connected to the cylinder 14 to the clamp base 21 side.
The pipe material W is inserted at the tip of the insertion rod 19 attached to the projecting piece 18 so as to project forward from the clamp base 21, and the upper base 23 of the clamp base 21 is lowered.

Next, in the first step, the slide body
Oval punch 69 of punch pressing shaft 41 by sliding 37 forward and backward
And the positioning is made so as to match the machining axis XX, and the elliptical punch 69 is inserted into the end portion of the pipe material W by the punch cylinder 64, so that the end portion of the pipe material W has a substantially sectional shape. It is formed into a circular shape.

Next, in the second step, the eyeglass punch 70 is selected and positioned by the same operation as described above.
After that, the protrusions 76, 76a of the eyeglass punch 70 are fitted by the punch cylinder 64 into the inside of the ellipse of the end of the pipe material W formed into the substantially oval cross section to prevent the deformation of the two small circles. Then, the lower die 31 of the sub-clamp base 30 is moved upward and the upper die 32 is moved downward to join the sub-clamp base 30. At this time, the central portion of the elliptical portion of the pipe material W is the sub-clamp base 30. The pipe material W is pressed into contact with the molding projections 35, 35a to form the central joint flat surface T of the pipe material W, and is molded into a substantially spectacle-shaped cross section.

Next, when the molded pipe product Z is taken out, the eyeglass punch 70 is retracted, the clamp base 21 and the sub-clamp base 30 are separated vertically, and the work release part 28
Thus, the pipe product Z is skipped and stored in the hopper 29.

During the above operation, the operation of selecting the punch pressing shafts 41, 41a ..., and the punch pressing shafts 41, 41a.
The positioning action of making the X coincide with each other is performed by the flat surface portions 48, 48a ... And the inclined portion 49 of the positioning mechanism 44 fixed to the slide body 37.
The sliding surface consisting of 49a ... Is arranged by operating the cylinder 57 to a position substantially opposite to the positioning pin 52, that is, to a position set by the sensors 58, 58a. After that, the cylinder 57 is operated in the opposite direction to the positioning so that the locking surface 50 of the positioning pin 52 and the positioning surfaces 47, 47a of the positioning mechanism 44 come into contact with each other.

By moving the slide body 37 back and forth,
The fitting portions 43, 43a at the rear end of the punch pressing shafts 41, 41a ... Are connected to the connecting portion 67 of the punch cylinder 64.

[0033]

[Effects of the Invention] In short, the present invention arranges the clamp base 21 and the sub-clamp base 30 on one side of the machining axis X-X of the base 20, and the clamp base 21 is a lower base 22 and an upper base that can be joined. 23, the upper base 23 is provided with a stopper 26, and the lower base 22 is provided with a stopper hole 27.
Is composed of a lower mold 31 and an upper mold 32 that can be joined freely.
Forming holes 34, 34a are formed in 32 and the forming holes 34, 34a are formed.
Molding protrusions 35 and 35a are provided on a, and the sub clamp base 30
At the front position of the punch pressing shaft 41 in the machining axis XX direction,
41a ... Can be moved back and forth, and a large number of slide bodies 37 are mounted in parallel with a predetermined interval, and the punch pressing shaft 41,
41a ... is fitted with the oval punch 69 and the eyeglass punch 70 having the protrusions 76 and 76a, respectively, and the fitting portion 4 is provided at the rear end.
3 and 43a are formed, and the punch pressing shafts 41, 41a can be positioned in the direction orthogonal to the machining axis X-X so as to match the machining axis X-X corresponding to the machining process. The positioning mechanism 44 is connected to the slide body 37, the one fitting portion 66 is provided, and the punch cylinder 64 that can be brought into and out of contact with the respective punch pressing shafts 41, 41a ... Is provided on the other side of the machining axis XX of the base 20. Since the pipe material W is disposed on one side, the first step of forming the end portion of the pipe material W into a substantially oval cross section and the second step of forming the end section of the pipe material W into a substantially spectacle shape in cross section are formed at the same processing axis XX. In order to do so, it is clamped and fixed by the clamp base 21 and positioned, and by performing multi-stage molding processing with the oval punch 69 and the eyeglass punch 70, the dedicated machines conventionally installed according to each process can be installed. Eliminates the need for transporting and positioning pipe material W between dedicated machines Since it is possible to significantly reduce the number of workers placed in each dedicated machine, it is possible to save labor by unmanning the processing of forming the end part of the pipe material W into a substantially spectacle-shaped cross section, which is a practical effect. It is a great thing.

[Brief description of drawings]

FIG. 1 is a front view of a pipe terminal processing apparatus according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a partially cutaway side view of a punch switching unit.

4 is a sectional view taken along line AA of FIG.

FIG. 5 is a front view of a main part of a work holding part and a work forming part.

FIG. 6 is a side view of FIG.

FIG. 7 is a side view of an oval punch.

8 is a plan view of the oval punch of FIG. 7. FIG.

9 is a front view of the oval punch of FIG. 7. FIG.

FIG. 10 is a side view of a glasses punch.

11 is a plan view of the eyeglass punch of FIG. 10. FIG.

12 is a front view of the eyeglass punch of FIG.

FIG. 13 is a perspective view showing a processing step of a pipe material.

[Explanation of symbols]

 20 Base 21 Clamp base 22 Lower base 23 Upper base 26 Stopper 27 Stopper hole 30 Sub clamp base 31 Lower mold 32 Upper mold 34, 34a Molding hole 35, 35a Molding protrusion 37 Slide body 41, 41a… Punch pressing shaft 43, 43a… Fit Joint part 44 Positioning mechanism 64 Punch cylinder 66 Fitting part 69 Elliptical punch 70 Eyeglass punch 76, 76a Inrush part XX Machining axis

Claims (1)

[Scope of utility model registration request] 1. A clamp base and a sub-clamp base are arranged on one side of a machining axis of a base, and the clamp base is composed of a lower base and an upper base that can be joined together, and a stopper is provided on the upper base. The lower base is provided with a stopper hole, and the sub-clamp base is composed of a lower mold and an upper mold which can be joined to each other, and a molding hole is formed in the lower mold and the upper mold, and a molding projection is provided in the molding hole. At the front position of the sub-clamp table, a slide body is installed, which is capable of advancing and retracting the punch pressing shaft in the direction of the machining axis and is mounted in parallel with a predetermined interval. A circle punch and a spectacle punch having a protrusion are mounted respectively, a fitting portion is formed at the rear end, and a machining axis is formed to match the axis of the punch pressing shaft with the machining axis corresponding to the machining process. A slide mechanism with a positioning mechanism that can be positioned in the orthogonal direction A pipe terminal processing device, characterized in that a punch cylinder, which is connected to one another and provided with one fitting portion and which can be brought into contact with and separated from each punch pressing shaft, is arranged on the other side of the processing axis of the base.