JPS61144299A - Pipe working device - Google Patents

Abstract

PURPOSE:To promote the efficiency in change operation with changing a die according to the variation in the kind of the pipe to be worked by making each die attachable and detachable and by fitting respectively to the upper and lower die bases. CONSTITUTION:The die 8 for positioning, cut die 16, press pad, cut punch, supporting member, the die 25 for positioning end part, bend die 28, bend punch supporting die 36, lower die 40, upper die, lower positioning die 54, etc. are changed according to the kind of a pipe P when the kind of the pipe P to the worked is changed in a pipe working device 1. Because of they being fitted freely attachably and detachably to the lower die base 2 and upper die base the change operation can be performed extremely easily without changing with the lower die base 2 and upper die base.

Description

Detailed Description of the Invention A0 Object of the Invention (1) Industrial Field of Application The present invention provides that upper and lower die bases, which are arranged to extend long along the conveying direction of a pipe to be processed, have a die base that extends in the conveying direction. The present invention relates to a pipe processing apparatus in which upper and lower dies having different processing modes are respectively fixed and arranged at a plurality of processing stations set at intervals along the pipe.

(2) Conventional technology Conventionally, in such pipe processing equipment, the upper and lower dies are integrated with the upper and lower Goui bases.

(3) Problems to be Solved by the Invention In the conventional structure described above, every time the type of pipe to be processed changes, the upper and lower dies must be replaced together with the Guibase, and each die must be replaced for each type of pipe. An integrated die base must be prepared.

B0 Structure of the Invention (1) Means for Solving Problems According to the present invention, each die is detachably attached to the upper and lower die bases, respectively.

(2) Effects As the type of pipe to be processed changes, the die on the die base can be replaced accordingly, improving the efficiency of the replacement work.

(3) Embodiment Below, an embodiment of the present invention will be explained with reference to the drawings. First, in FIG. 1, a pipe P is, for example, an upper frame of a motorcycle. 1~5th addition station 81~S
5 is sequentially processed to form the upper frame.

The pipe processing apparatus 1 includes a lower die base 2 that is fixedly arranged, and an upper die base 3 that is driven up and down on the lower die base 2 (see FIGS. 3 to 6), and each tie base 2,
3 extends long along the conveyance direction 4 of the pipe P. The first to fifth processing stations 31 to S5 are set at intervals along the conveyance direction 4 between the die bases 2 and 3.

Between the two die bases 2 and 3, a pair of transfer bars 5 for sequentially transferring the pipe P to each processing station 81 to S5 are arranged in parallel along the transfer direction 4, and both ends of the transfer bars 5 are They are interconnected by stays 6. On the upper surface of both transfer pars 5, V-shaped mounting grooves 7 as shown in FIG.
is provided. Both transfer par 5s like this are
Driven by a drive means (not shown) to draw a rectangular trajectory in a vertical plane parallel to the conveyance direction 4.As a result,
The pipe P is placed in the placement groove 7 and transported to the next processing station.

In FIG. 3, a positioning die 8 is removably mounted on the lower die base 2. This positioning die 8
is on the side of one transfer par 5, and the first to fifth
It is formed long along the conveying direction 4 between the processing stations 81 to 35, and positioning grooves 9 are provided on the upper surface thereof corresponding to the first to fourth processing stations 31 to S4, respectively. Those positioning grooves 9 are arranged in the conveying direction 4.
It is provided across both sides of the positioning die 8 perpendicularly to the pipe P, and its cross-sectional shape includes an arc-shaped support surface 10 formed in an arc shape corresponding to the lower part of the pipe P, and the support surface 10 It consists of a pair of guide surfaces 11 that are inclined in directions away from each other from both ends in the circumferential direction. Even if the axis of the pipe P conveyed by the transfer par 5 is slightly deviated from the center of curvature of the support surface 10, the guide surface 11 can
It serves to guide the pipe P to the support surface 10 to eliminate the displacement.

Such a positioning die 8 has a plurality of dies, for example, 3 as shown in the figure.
The mounting flanges 12 are integrally provided so as to extend outward, and each of the mounting flanges 12 is provided with a mounting groove 13 that is open toward the outside. A bolt installed in the lower die base 2 is inserted into the mounting groove 13 of each mounting collar 12, and the positioning die 8 is fixed to the lower die base 2 by screwing and tightening a nut to the bolt.

Therefore, it is also possible to remove the positioning die 8 from the lower die base 2 by loosening the nut.

On the other hand, the upper die base 3 has a positioning die 14 corresponding to the positioning die 8, and a lower positioning die 14 corresponding to the positioning die 8.
The mounting structure is similar to the mounting structure of 4 to the lower die base 2,
Can be installed in a removable manner. Moreover, positioning die 1
4 is provided with an arcuate pressing surface 15 that can fit into the upper part of the pipe P, corresponding to each of the positioning grooves 9.

Both of these positioning dies 8 and 14 have a pressure surface 15 of the upper positioning die 14 that descends together with the upper die base 3 while the pipe P is fitted into the positioning groove 9 of the lower positioning die 8. By pressing the upper part of the pipe P, the pipe P is held between the pressing surface 15 and the supporting surface 10 and positioned.

Referring also to FIG. 4, the second processing station S2 is provided for cutting the pipe P to a certain length, and on one side of the lower die base 2, A cut die 16 is removably attached, and a pressing pad 17 and a cut bunch 18 are removably disposed on the upper die base 3 in correspondence with the cut die 16.

A support groove 19 with a semicircular cross section and an open top for placing the pipe P is provided on the upper surface of the cut die 16.
Also provided on the lower surface of the pressing pad 17 is a pressing groove 20 having a semicircular cross section and an open lower part, corresponding to the supporting groove 19 thereof.

This pressing pad 17 is movable up and down to support the supporting member 2.
1, and a spring 22 is interposed between the press pad 17 and the support member 21 to bias the press pad 17 downward. The support member 21 is removably attached to the upper die base 3, and is attached to the cut die 16.
A cut punch 18 for cutting the end of the pipe P held between the pressing pads 17 is removably attached to the upper die base 3 adjacent to the support member 21.

The cut die 16 inserts a bolt planted in the lower die base 2 into the mounting groove 24 of the mounting collar 23 provided at the lower part of the cut die 16.
It is fixed to the lower die base 2 by screwing a nut onto the bolt and tightening it, and the support member 21 and the cut punch 18 are also attached to the upper die base 3 using the same attachment structure as the cut die 16. Therefore, by loosening the nut, the cutting die 16 can be removed from the lower die base 2, and the support member 21, that is, the pressing pad 17 and the cant bunch 18 can be removed from the upper die base 3.

An end positioning die 25 having a contact surface capable of contacting the end surface of the pipe P is removably attached to the other side of the upper part of the lower die base 2. This end positioning die 25 is disposed on the lower die base 2 between the second and third processing stations 81 to 83, and has a mounting groove 26 for inserting a bolt implanted in the lower die base 2. A mounting collar 27 having a mounting collar 27 is integrally provided with the end positioning die 25.

In FIG. 5, in the third processing station S3, a bend die 28 is removably attached to one side of the lower die base 2, and a bend bunch 29 is detachably attached to the upper die base 3 corresponding to the bend die 28. Installed.

On the upper surface of the bend die 28, there is a support groove 3 having a semicircular cross section that curves downward toward one side of the lower die base 2.
0, and a pressing groove 31 having a curved semicircular cross section corresponding to the support groove 30 is provided on the lower surface of the bend bunch 29. The bend die 28 is integrally provided with a guide plate 32 that can come into contact with the end surface of the pipe P being bent by the bend die 28 and the bend bunch 29. A mounting flange 34 having a mounting groove 33 for insertion is provided. Further, the bend bunch 29 is also removably attached to the upper die base 3 in the same manner as the bend die 28.

Referring again to FIG. 1, in the fourth modification station S4,
A support die 36 having an abutment plate 35 for abutting the end surface of the pipe P is removably attached to one side of the lower die base 2. A support groove 37 having a semicircular cross section and open at the top is provided on the upper surface of the support die 3G. The support die 36 is integrally provided with a mounting flange 39 having a mounting groove 38, and by inserting a bolt implanted in the lower die base 2 into the mounting groove 38 and screwing a NAND onto the bolt, A support die 36 is detachably attached to the lower die base 2.

Referring also to FIG. 6, a lower die 40 extending over fourth and fifth processing stations S4.85 is removably attached to the other side of the lower die base 2. This lower die 4
0, a recess 41 for crushing the end of the pipe P is provided in the part corresponding to the fourth processing stage S4, and a recess 41 for crushing the end of the pipe P is provided in the part corresponding to the fifth processing stage S5. A support groove 42 is provided for rotating and supporting the end of the pipe P by 90 degrees. Also, the fourth and fifth processing stations S4. Corresponding to S5, there is a contact plate 4 on the lower die 2 for abutting and positioning the end surface of the pipe P.
3.44 are provided respectively, and the fifth addition station S
5 is provided with a hole 45 for dropping the cut end of the pipe P.

Such a lower die 40 is integrally provided with a mounting collar 47 having a mounting groove 46 for inserting a bolt (not shown), and the bolt implanted in the lower die base 2 can be inserted into the mounting groove 46. The lower die 40 is removably attached to the lower die base 2 by inserting the lower die 40 into the lower die base 2 and screwing and tightening a nut onto the bolt.

On the other hand, a die 48 corresponding to the lower die 40 is detachably attached to the upper die base 3. The upper die 48 has a recess 4 opposite to the recess 41 as shown in FIG.
9 is provided. Further, a pressing pad (not shown) for pressing the pipe P in the support groove 41 downward at a position corresponding to the fifth processing station S5 is provided on the upper die 48, and a cut punch (not shown) is provided. will be established.

In a portion corresponding to the fifth processing station S5, a vent support groove 51 is provided on the upper surface of the positioning die 8 and is curved downward toward the lower die 40. A pressing groove 52 is provided on the lower surface (see FIG. 3).

In the fifth machining station S5, the posture of the pipe P in the fourth machining station S4 is rotated by 90 degrees, but the upper frame of the motorcycle is In order to enable the left and right upper frames to be processed by the same vibe processing device 1, a rotation positioning mechanism 53 is provided.

This rotational positioning mechanism 53 includes a lower positioning die 54 that is detachably attached to one side of the lower die base 2, and a V block 55 that is attached to both transfer pars 5 so as to be displaceable in the longitudinal direction thereof.

The upper surface of the lower positioning die 54 includes a straight portion 56 and a pair of curved portions 57 branching left and right from the end of the straight portion 56.
A support groove 59 consisting of 58 is provided. Further, above the lower positioning die 54, the upper die base 3 has a support groove 5.
An upper positioning die (not shown) having a pressing groove corresponding to No. 9 is removably attached.

In FIG. 7, block 55 includes the fifth
An elongated hole 60 extending along the conveying direction 4 is bored at a position corresponding to the John S5, and a bolt 61 passing through the elongated hole 60 is fixed to the transfer par 5. ■The block 55 is brought into contact with the side surface of the transfer part 5 by inserting the pole 61 into the long hole 60.
(1) The block 55 is fixed to the transfer par 5 by screwing a nut 62 onto the tip of the bolt 61 protruding from the top and tightening the nut 62. Moreover, by loosening the nut 62, the V block 55 can be displaced back and forth along the conveyance direction 4.

(2) A V-shaped mounting groove 63 with an open top is provided on the upper surface of the block 55. On the other hand, both transfer pars 5 are provided with recesses 64 that are deeper than the bottom of the placement groove 63 within a movable range of the block 55.

Next, to explain the operation of this embodiment, the pipe P to be processed is first carried into the first processing station S1 by both transfer pars 5, and then transferred to the second processing station S1.
Transported to John S2.

In this second processing stage S2, one end of the pipe P is brought into contact with the end positioning die 25, and in this state, the other end of the pipe P is cut by the cut punch 18, so that the pipe P remains at a predetermined constant position. The length will be .

After the cutting process at the second processing station S2, the pipe P is transported to the third processing station S3. The end of the side pipe P is bent die 28
and bent by a pend punch 29.

Next, in the fourth processing station S4, one end of the pipe P is crushed by the lower die 40 and the upper die 48. This fourth
After the crushing process in the processing station S4, the pipe P is conveyed to the fifth processing station S5. However, when the pipe P to be processed is for forming the left upper frame, the block 55 is It is fixed to both transfer pars 5 in a state of being displaced to the front side along the conveying direction 4.

When the transfer par 5 horizontally moves rearward along the conveying direction 4 in order to convey the pipe P of the fourth processing station S4, the placement groove 63 in the block 55
As shown in FIG. 8(a), the bottom of the pipe P is located on the front side along the conveyance direction 4 rather than the pipe P. Therefore, when the transfer par 5 rises, the pipe P comes into contact with one of the inclined surfaces of the mounting groove 63, and as shown in FIG. It slides to the bottom. As a result, the pipe P subjected to the bending process in the third processing station S3 is placed on the mounting groove 63 with the bent portion pb inclined toward the rear side along the conveyance direction 4! i! placed and supported.

With the pipe P supported in this way, both transfer pars 5 move horizontally forward in the conveying direction 4, and when the block 55 reaches the position corresponding to the fifth processing station S5, Transfer par 5 goes down.

As the transfer par 5 descends, the pipe P also descends, and first, the bent portion pb of the pipe P is lowered by the lower positioning die 5.
Abuts against one curved portion 57 of 4. When the transfer par 5 further descends, the pipe P turns so that its bent portion pb enters the curved portion 57, and when the transfer par 5 descends to the lower limit position, the pipe P changes from the state of the fourth processing station S4 to 90 It is placed on the lower positioning die 54, the positioning die 8, and the lower die 40 in a rotated state.

By lowering the upper die base 3 in this state, the pipe P can be bent and cut at the same time, and the left afva frame can be formed.

In the case of the right upper frame, (1) the block 55 is fixed to both transfer pars 5 in a state of being displaced to the rear side along the conveying direction 4. In this way, the 4th addition station S
4, when lifting the pipe P, as shown in FIG. 9(a), the pipe P comes into contact with the other inclined surface of the mounting groove 63,
The pipe P slides to the bottom of the mounting groove 63 with a slight angular displacement as shown in FIG. 9). This results in
The pipe P is placed and supported on the placement groove 63 with the bent portion Pb inclined forward in the conveying direction 4.

In this state, the pipe P is moved to the fifth processing station S.
5, the pipe P turns 90 degrees while putting its bent portion Pb into the other curved portion 58, and is placed on the lower positioning die 54, the positioning die 8, and the lower die 40.

In this way, it is possible to deal with changes in the left and right upper frames simply by moving the position of the V block 55.

In this vibrator processing apparatus 1, when the type of pipe P to be processed changes, the positioning die 8.
14, cut die 16, pressure pad 16, cut punch 18, support member 21, end positioning die 25, bend die 28, pend punch 29 support die 36, lower die 40
, the upper die 48, the lower positioning die 54, etc., may be converted according to the type of pipe P, and they can be converted to the lower die base 2.
Since it is detachably attached to the upper die base 3, it is not necessary to replace the lower die base 2 and the upper die base 3 together, making the replacement work extremely easy.

C0 Effects of the Invention As described above, according to the present invention, each die is detachable and attached to the upper and lower die bases, so the dies on the die base can be replaced in response to changes in the type of pipe to be processed. This will improve the efficiency of the replacement work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a plan view of the lower goo base, FIG. 2 is a view taken along line nn of FIG. 1, and FIG.
Figure 3 is a sectional view taken along line m-m in Figure 1, and Figure 4 is a cross-sectional view taken along line m-m in Figure 1.
A sectional view taken along the line V-IVV. FIG. 5 is a sectional view taken along the line V-V in FIG.
FIG. 6 is a sectional view taken along the line VI-Vl in FIG. 1, FIG. 7 is a view taken along the line ■-■ in FIG. . 1...Pipe processing device, 2...Lower die base, 3.
... Upper die base, 4... Conveyance direction, 8, 14...
Positioning die, 16...Cut die, 17...Press pad, 18...Cut punch, 21...Support member, 25...End positioning goo, 28...Bend die, 29...・Bend bunch, 36...support die,
40...lower die, 48...upper die, 54...lower positioning die P...pipe, 81-S5...processing station Patent Applicant Honda Motor Co., Ltd. Fig. 8 ( b) Figure 9 (U (a) (a)

Claims (1)

[Claims] The upper and lower die bases, which are arranged to extend long along the transport direction of the pipe to be processed, are provided with upper and lower dies with different processing modes for each of a plurality of processing stations set at intervals along the transport direction. 1. A pipe processing apparatus in which said dies are respectively fixed and arranged, wherein said dies are removably attached to said upper and lower die bases, respectively.