CN108160809B - Die device for pipe fitting machining and piercing machining device for pipe fitting machining - Google Patents
Die device for pipe fitting machining and piercing machining device for pipe fitting machining Download PDFInfo
- Publication number
- CN108160809B CN108160809B CN201711177791.5A CN201711177791A CN108160809B CN 108160809 B CN108160809 B CN 108160809B CN 201711177791 A CN201711177791 A CN 201711177791A CN 108160809 B CN108160809 B CN 108160809B
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- pipe
- die
- lid
- die device
- residue
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
Abstract
The invention provides a die device for processing a pipe and a punching device for processing the pipe, when burrs facing inwards exist on the opening end surface of the pipe to be processed, the inner die device can be easily inserted into the pipe, the outer die device and the inner die device can be easily and reliably positioned, and residues generated by punching the pipe by the die device can be easily processed. The pipe fitting processing die device is composed of an outer die device and an inner die device, the outer die device is arranged on the outer side of a pipe fitting, the inner die device is inserted into the pipe fitting, matched with a die of the outer die device and used for processing on the pipe fitting, and the outer die device is provided with a guiding die used for determining the positions of the inner die device and the outer die device in the width direction of the pipe fitting, so that the outer die device and the inner die device can be accurately positioned.
Description
Technical Field
The present invention relates to a die device for processing a pipe, and more particularly, to an inner die device inserted and arranged inside a pipe and an outer die device arranged outside the pipe, and further, to a pipe piercing processing device using the die devices.
Background
Currently, when a pipe is subjected to a process such as piercing, the process is performed by cooperation of an outer die device disposed outside the pipe and an inner die device inserted and disposed inside the pipe.
As shown in fig. 6, the conventional inner die apparatus inserted and disposed inside the pipe w has a mechanism for pressing a ball 64 biased by the force of a spring 63 on one side of a side w2 in the direction intersecting with a processing side w1, and coaxially positions a punch 65 of the outer die apparatus and a die 66 of the inner die apparatus. In the drawing, 61 denotes an upper block and 62 denotes a lower block of the inner mold device. In this manner, in the conventional coaxial positioning of the outer die apparatus and the inner die apparatus, the inner surface of the side w2 of the tube w facing the inner surface of the side w3 is pressed by the ball 64, thereby positioning the inner die apparatus inserted into the tube w. Thus, the position of the reference block 67 needs to be adjusted every time the thickness of the pipe w changes.
Further, in the above-described conventional die apparatus, in order to press the side w2 in the direction intersecting the processed side w1 of the tube w by the ball 64 biased by the force of the spring 63, the outer dimension of the inserted inner die apparatus is larger than the inner dimension of the tube w between the side w2 on the side where the ball 64 contacts and the 2 sides of the opposite side w3, and therefore, a large force is required to insert the inner die apparatus into the tube w from the open end surface portion of the tube w, and there is a problem that the insertion is difficult. In particular, when burrs are present toward the inside of the open end face, the insertion is less easy. Further, since the pipe w is spaced apart from the die 66 of the die apparatus by the distance t, not only burrs but also the shape of the hole to be punched is deformed during the punching process, and the pipe w cannot be formed into a correct shape.
In the conventional die apparatus, since the force of the spring 63 and the movement of the ball 64 are based on the above, there is a problem that the above-mentioned situation is not easily found when the ball 64 breaks down.
Disclosure of Invention
[ problems to be solved by the invention ]
The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a die apparatus which, when burrs are present on an open end surface of a pipe to be processed, can easily insert an inner die apparatus into the pipe, can easily and securely position an outer die apparatus and an inner die apparatus, does not require coaxial adjustment work of the outer die apparatus and the inner die apparatus, and can easily handle a residue generated by piercing the pipe with the die apparatus according to the present invention.
[ means for solving problems ]
The mold apparatus according to the first aspect configured to solve the above problem has the following features.
A die set for processing a pipe is composed of an outer die set arranged outside the pipe and an inner die set inserted inside the pipe, cooperating with the die of the outer die set, and processing on the pipe.
The outer die device has a guide die for positioning the inner die device and the outer die device at positions concentric with each other in the left-right direction of the pipe.
The mold apparatus according to the first aspect has the following effects. In the outer die device disposed on the outer side of the pipe to be pierced and the inner die device disposed on the inner side of the pipe, before piercing, since the guide die provided on the outer die device is already inserted into the guide hole provided on the inner die device, positioning in the width direction of the pipe can be ensured. Therefore, the pipe can be stably perforated at a suitable position. Further, if there is no guide die, the left-right concentricity of the die cannot be secured, and stable processing cannot be performed.
In addition, according to the die device of the first technical scheme, the service life of the die is prolonged, burrs of the inner side surface of the pipe fitting are reduced, and the deformation of the processed pipe fitting is reduced. Further, when the thickness dimension of the pipe changes, the coaxial adjustment work (adjustment of the pipe positioning reference block or the like) required in the conventional die device is not required.
The mold apparatus according to the second aspect is based on the first aspect, and has the following features.
The inner die device has a mechanism for fixing the inner die device to the pipe, the mechanism is divided into 2 parts corresponding to the vertical direction of the inner die device, and can move back and forth towards the opening direction of the pipe, and at the same time, the back and forth movement is converted into the pressure applied by the inner die device on the part processed on the processing edge of the pipe, thereby fixing the inner die device to the pipe.
According to the die apparatus of the second aspect, since the inner die apparatus inserted into the pipe is provided with the fixing means (hereinafter, referred to as expanding/contracting means) for performing the operation by expansion/contraction, the upper surface of the inner die apparatus is brought into close contact with the back surface of the pipe without a space therebetween, and thus, stable piercing processing can be performed. The inner die apparatus according to the second aspect requires a space to move the die in a state of being inserted into the pipe if the expanding/contracting function is not provided. If the gap exists, burrs on the inner surface of the pipe are increased during the piercing process, and large deformation occurs. According to the expanding/contracting function of the inner die device of the second aspect, the burr on the inside becomes smaller and the piercing work on the pipe does not deform because the space does not exist at the piercing work.
Further, when the inner die unit is inserted from the opening end surface of the pipe, the outer dimension of the inner die unit can be made smaller than the opening dimension of the pipe by previously narrowing the inner die unit in the vertical direction, and therefore, the pipe having a burr on the inner surface can be easily inserted.
The mold apparatus according to a third aspect is based on the first or second aspect, and has the following features.
The method includes the steps of storing a residue generated by piercing processing of the outer die device and the inner die device in the inner die device, and providing a cover which can be opened and closed in a vertical direction at a lower portion of the inner die device so that the residue does not contact an inner surface of the pipe, and opening the cover provided on the inner die device at a time point when the cover is separated to a position where the cover does not interfere with the pipe when the stored residue is discharged, so that the cover itself forms a sliding surface of the residue to discharge the residue.
According to the die apparatus of the third aspect, the residue (residue) generated by the piercing process is collected in the inner die apparatus during the process, and the residue is stored and processed in a state of not contacting the inner surface of the pipe, so that no residue is present in the processed pipe. Therefore, it is not necessary to perform an operation of removing the residue accumulated in the pipe after the piercing process of the pipe, and the inner die assembly and the inner surface of the pipe are not clogged with the residue during the process, so that the process can be stably performed. Moreover, the residues accumulated in the inner die device can be automatically discharged when the pipe fittings are exchanged, so that the redundant operation of operators is not needed, and the generation efficiency can be improved.
The mold apparatus according to the fourth aspect is based on the third aspect, and has the following features.
The lid has a supporting point for the rotation movement of the lid itself, the lid is closed by an elastic force capable of bearing the weight of the lid but incapable of bearing the weight of plus a certain amount of remnants contained in the inner mold unit, the elastic force keeps the lid in close contact with the inner mold unit at all times when there is no remnants, and the lid is automatically opened at a point of time when the lid is separated from the pipe in a state where the certain amount of remnants contained in the inner mold unit is weighted.
According to the fourth aspect, the same effects as those of the third aspect can be exhibited.
A pipe piercing apparatus according to a fifth aspect uses the die apparatus for pipe processing according to any one of the first through fourth aspects.
According to the fifth aspect, the same effects as those of the first to third aspects can be exhibited. Furthermore, since the angle pipe is perforated by the perforation processing device using the mold device according to the first to third aspects, the efficiency and precision of perforation processing are significantly improved.
The pipe fitting machining boring device according to a sixth aspect is based on the fifth aspect and has the following features.
The lid has a support point for the rotational movement of the lid itself, and is closed by an elastic force capable of bearing the weight of the residue contained in the inner mold device, and is constantly brought into close contact with the inner mold device by the elastic force, and when the lid is opened downward, the lid is forcibly opened by a lid opening device provided separately from the mold device in the piercing device body.
According to the sixth aspect, the same effects as those of the first to fifth aspects can be exhibited.
A seventh technical means is a die set for processing a pipe, comprising an outer die set disposed on an outer side of the pipe and an inner die set inserted into an interior of the pipe, cooperating with a die of the outer die set, and processing the pipe.
The inner die device has a mechanism for fixing the inner die device to the pipe, the mechanism is divided into 2 parts corresponding to the vertical direction of the inner die device, and can move back and forth towards the opening direction of the pipe, and at the same time, the back and forth movement is converted into the pressure applied by the inner die device on the part processed on the processing edge of the pipe, thereby fixing the inner die device to the pipe.
The mold apparatus according to the eighth aspect is based on the seventh aspect, and has the following features.
The method includes the steps of storing a residue generated by punching the outer die device and the inner die device in the inner die device, and providing a cover which can be opened and closed in the vertical direction at the lower part of the inner die device so that the residue does not contact with the inner surface of the pipe, wherein when the stored residue is discharged, the cover itself forms a sliding surface of the residue by opening the cover provided on the inner die device at a time point when the cover is separated to a position where the cover does not interfere with the pipe, so as to remove the residue.
The mold apparatus according to the ninth aspect is based on the eighth aspect, and has the following features.
The lid has a supporting point for the rotation movement of the lid itself, the lid is closed by an elastic force capable of bearing the weight of the lid but incapable of bearing the weight of plus a certain amount of remnants contained in the inner mold unit, the elastic force keeps the lid in close contact with the inner mold unit at all times when there is no remnants, and the lid is automatically opened at a point of time when the lid is separated from the pipe in a state where the certain amount of remnants contained in the inner mold unit is weighted.
A pipe machining boring device according to a tenth aspect of the present invention uses the die device according to any one of the seventh through ninth aspects of the present invention.
The pipe fitting machining piercing device according to the eleventh aspect has the following features based on the tenth aspect.
The lid has a support point for the rotational movement of the lid itself, and is closed by an elastic force capable of bearing the weight of the residue contained in the inner mold device, and is constantly brought into close contact with the inner mold device by the elastic force, and when the lid is opened downward, the lid is forcibly opened by a lid opening device provided separately from the mold device in the piercing device body.
Drawings
Fig. 1 is an overall view (front view) of a piercing apparatus using a die apparatus of the present invention.
Fig. 2 is an overall view (plan view) of a piercing apparatus using the die apparatus of the present invention.
Fig. 3(a) to 3(c) are views for explaining an outer mold device using the guide mold of the present invention.
Fig. 4(a) to 4(c) are views for explaining the expanding/contracting mechanism of the inner mold device according to the present invention.
Fig. 5(a) and 5(b) are views for explaining the residue collecting mechanism of the inner mold device according to the present invention.
Fig. 6 is a diagram for explaining a conventional mold apparatus.
[ description of symbols ]
1: press body
2: pressure device
3: outside mold device
4: inner side die device
5: material receiving part
6: connecting block
7: male die fixing plate
8: pressure base
9: frame (frame)
10: slide drive device
11: positioning driving device
12: cylinder (cylinder)
13: cover opening device
14: clamp apparatus
15: mobile unit
16: guide rail
17: ball screw
18: servo motor
19: reference block
20: clamp cylinder
21: control device
22: guide bar (guide post)
23: stripper plate (stripper plate)
24: plate spring
25: punching machine cutter (punch for processing)
26: cutter part
27: through hole
28: residue containing part
29: cover for portable electronic device
30: pin
31: spring
33: pressing strip
34: compression member
37: barrel
41: upper expansion/contraction block
42: lower expansion/contraction block
A: mold positioning part
B: expansion/contraction part of inner mold
C: residue recovery part
H: guide hole
P: guide die
S: residue of the reaction
T: spacer
t: spacer
W: corner tube
w: corner tube
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Fig. 1 is a general view (front view) of a punching apparatus using a die apparatus of the present invention, fig. 2 is a general view (plan view) of the punching apparatus, fig. 3(a) to 3(c) are views for explaining an outer die apparatus using a guide die of the present invention, fig. 4(a) to 4(c) are views for explaining an expanding/contracting mechanism of the inner die apparatus of the present invention, fig. 5(a) and 5(b) are views for explaining a residue collecting mechanism of the die apparatus of the present invention, and fig. 6 is a view for explaining a conventional die apparatus.
< 1 > constitution of piercing apparatus
The structure of a piercing apparatus (hereinafter, referred to as a press) using the die apparatus of the present invention will be described with reference to fig. 1 and 2. In fig. 1, 1 denotes a press body, 2 denotes a press device for lifting and lowering an outer die device 3, 4 denotes an inner die device, and 5 denotes a receiving portion of an angular pipe W. The press device 2 is arranged on the press body 1 and is connected to the outer die arrangement 3 via a punch retainer 7 arranged on the press body 1 on the basis of a connecting block 6. A guide bar (guide post) 22 vertically provided on the press base 8 of the press body 1 for guiding the punch retainer 7 to be slidable in the up-down direction, and a stripper plate (stripper plate) 23 disposed on the punch retainer 7 together with the outer die unit 3. The force of the pressure device 2 can lift the outer die device 3 and the stripper plate 23 via the connecting block 6 and the punch retainer 7. The plate spring 24 is sandwiched between the stripper plate 23 and the punch retainer 7, 25 is a press cutter of the outer die assembly 3, P is a guide die, 26 is a cutter portion of the inner die assembly 4, 27 is a through hole, and an upper edge portion of the through hole 27 is the cutter portion 26. Reference numeral 28 denotes a residue receiving portion of the inner mold device 4 located below the cutter portion 26. Reference numeral 29 denotes a cover provided with a lower expansion/contraction block 42 of the inner mold device 4. The lid 29 is supported by a pin 30 to be freely rotatable in the vertical direction, and the lid 29 is brought into close contact with the lower surface of the inner mold device 4 by a spring 31.
The inner die apparatus 4 is used in a state where a feed pipe (hereinafter referred to as an angled pipe W) is inserted inside. The inner mold device 4 is inserted into the angular pipe W on the left side of fig. 1, and is disposed toward the right side of fig. 1. The inner die unit 4 is connected to a slide driving unit 10 disposed on a frame (frame)9, and is expanded/contracted in the vertical direction of the inner die unit 4 by expansion/contraction of a cylinder 10a of the slide driving unit. The outer die device 3 is arranged at the upper part of the press machine and can be lifted up and down, and the inner die device 4 is supported on the basis of the material receiving part 5 on the pressure base 8 at the lower part of the press machine 1.
The frame 9 on which the inner mold device and the slide driving device 10 thereof are mounted has a structure in which the driving device by the cylinder 12 is movable on the pressure base 8 to the 2-point lock line position in fig. 2. The inner die apparatus 4 is moved to an operable position by the cylinder 12 in order to collect the residue S accumulated in the residue containing portion 28 inside the inner die apparatus 4 (see fig. 5 a and 5 b), and the lid opening device 13 provided in the press machine.
Piercing method for < 2 > angle pipe
The method of piercing a corner pipe will be described with reference to fig. 1 and 2. As described above, the corner pipe W is provided with the inner die device 4 inserted therein, and the inner die device 4 is supported by the material receiving portion 5 and the frame 9 of the press 1. The length of the corner tube has a length of 2m to 4 m. The corner pipe W of the inner die device 4 is inserted, and the end portion on the opposite side of the press machine is held by a jig 14. The gripper 14 is in contact with a moving unit 15, said moving unit 15 being located on a guide rail (runner) 16 arranged on the pressure base 8 and used for linear guidance. The unit positions the corner pipe W at a machining position in the longitudinal direction thereof on the lower surface of the outer die unit 3 based on a positioning drive unit 11 which is arranged on the pressure base 8 and is constituted by a ball screw 17 and a servomotor 18.
The width direction of the angular tube W is positioned as follows. As shown in a cross-sectional view in the arrow X direction of fig. 2, a reference block 19 and a jig cylinder 20 are provided on the receiving portion 5 of the pressure base 8. The angular pipe W positioned in the longitudinal direction by the positioning drive device 11 is pressed against the reference block 19 by the jig cylinder 20, and is positioned in the width direction of the angular pipe W.
The control device 21 shown in fig. 1 and 2 controls the positioning of the angled pipe W, controls the pressure device 2, controls the expansion/contraction of the inner mold device 4, controls the slide drive device 10, and controls the positioning drive device 11 and the jig cylinder 20. The control device can also control the discharge of the residue S (press waste) generated by the piercing process described later. The angular pipe W held by the jig 14 is positioned with respect to the outer die apparatus 3 by the positioning drive apparatus 11, and when the positioning is completed, the reference block 19 is pressed by the jig cylinder 20 and fixed to the press main body 1. Then, as shown in fig. 3(c), the outer die device 3 is lowered by the action of the pressure device 2, and the angular pipe W is continuously perforated by the engagement with the inner die device 4, and the angular pipe W is perforated by a plurality of predetermined pitches. The angular pipe W having finished the piercing process is moved to the outside (left side in fig. 1) of the press body 1 by the positioning drive device 11 and discharged.
The press machine includes a guide die of the outer die device 3, an expanding/contracting mechanism of the inner die device, and a residue S collecting mechanism generated by processing. Hereinafter, each of the present invention will be described with reference to the drawings.
Constitution of guide die P of < 3 > outer die device
The guide mold P is arranged at a position corresponding to the portion a in fig. 1. The guide mold P will be described with reference to fig. 3(a) to 3 (c).
The guide die P is provided separately from the outer die apparatus 3 and the inner die apparatus 4, and is provided separately from a positioning processing die (hereinafter, referred to as a press tool 25). The number of the guide molds P is preferably 1 or more. As shown in fig. 3(a) to 3(c), the guide mold P has a shape such that the tip thereof is easily inserted into the guide hole H of the guide mold of the inner mold device 4. The dimensional relationship between the guide die P and the insertion hole H is large in the longitudinal direction of the pipe, and almost micron-sized in the width direction of the pipe. The guide die P of the outer die device has a length dimension 5mm longer than the tip of the press tool 25 for machining. In the drawing, in order to position the outer die apparatus 3 and the inner die apparatus 4, 2 guide dies P should be provided in the width direction of the pipe. In addition, the arrangement method of the guide mold is not limited thereto.
The guide mold P operates as follows. The angular pipe W to be machined is moved to a position determined for machining by the positioning drive device 11 and positioned, and the guide die P of the outer die unit 3 is lowered and inserted into the guide hole H in the state of fig. 3 (a). Then, the inner mold device 4 is expanded/contracted and raised (details are explained in the section < 4 >), and the state of fig. 3(b) is obtained. At this time, the guide die P and the press tool 25 are both in a lowered state, but since the length of the guide die P is longer, the guide die P is first inserted into the guide hole H of the inner die unit 4. Thereby, the inner die set 4 is positioned in the width direction of the outer die set 3 and the angular pipe W. Then, in the state of fig. 3(b) (before the press cutter 25 is lowered), as shown in fig. 3(c), the press cutter 25 is lowered to end the piercing process.
By using the guide mold P, the coaxial positioning adjustment of the outer mold device 3 and the inner mold device 4 described in the related art is not required.
< 4 > expansion/contraction mechanism of inner side mold device
The expanding/contracting mechanism of the inner mold device 4 is a portion corresponding to the portion B of fig. 1. This will be described with reference to fig. 4(a) to 4 (c).
The inner die device 4 is divided into an upper expansion/reduction block 41 and a lower expansion/reduction block 42. Both have a structure in which they slide in contact with each other with a weak inclined surface. The upper expanding/reducing block 41 moves in the vertical direction while maintaining the horizontal position of the press machine receiving section 5 unchanged. The lower expanding/contracting block 42 moves in the horizontal direction by the action of the cylinder 10a or the slide driving device 10, and the upper expanding/contracting block 41 moves up and down in the vertical direction. At this time, the through hole 27 of the upper expansion/contraction block, the guide die P of the outer die device, and the press tool 25 form a mechanism that rises so that the relative positions do not change in the longitudinal direction of the pipe.
The inner die device 4 is configured to be inserted into the feed horn W. The raising operation of the upper expansion/contraction block 41 is as follows. In the state of fig. 4(a), the outer die device 3 is lowered, and the guide die P is lowered, so that the coaxial positioning of the outer die device 3 and the inner die device 4 is completed. When the lower expansion/contraction block 42 is moved in the horizontal direction (the direction of the arrow Y in fig. 4 a) by the cylinder 10a (see fig. 1 and 2), the upper expansion/contraction block 41 rises by about 0.5mm to assume the state in fig. 4 b, and the interval t in fig. 4a disappears. Fig. 4(b) shows a state before the press tool 25 is lowered (before the punching process). Thus, the upper surface of the upper expanding/contracting block 41 and the lower surface of the lower expanding/contracting block 42 are in close contact with the upper and lower inner surfaces of the angular pipe W. Then, the punch cutter 25 is lowered to perform the punching process.
The descending action of the upper expansion/contraction block is as follows. Fig. 4(c) shows a state where the punch press tool 25 is lifted after the piercing process is completed. In the state of fig. 4(c), the cylinder 10a moves in the direction of arrow Z in the horizontal direction of fig. 4(c) while the outer die unit 3 is lifted up including the guide die P. Thereby, the upper expanding/contracting block 41 is lowered to assume the state of fig. 4(a), and the vertical dimension of the inner die device 4 is reduced to be smaller than the inner dimension of the angular tube, so that the angular tube is easily moved to the next piercing position. Also, the inner mold device 4 can be easily inserted inside the angular pipe having a length of 2m to 4 m. In addition, since the perforated portion of the angled pipe and the inner die device 4 are brought into close contact with each other by the expanding/contracting function during the perforation processing, burrs formed during the processing can be minimized, and the positional accuracy of the perforation processing can be remarkably improved as compared with the conventional processing method.
< 5 > residue recovery mechanism
The residue collection mechanism is operated by the lid opening device 13 disposed at a position corresponding to the part C of fig. 1 and the residue receiving portion 28 formed in the inner mold device of fig. 1. The residue collection mechanism in the present invention will be described below with reference to fig. 5(a) and 5 (b).
The piercing process of the angled pipe W will be described again. First, when the press device 2 is lowered, the outer die device 3 and the stripper plate 23 are lowered, and when the stripper plate 23 comes into contact with the upper surface of the angular pipe W, the press device 2 is lowered. Then, the plate spring 24 sandwiched between the stripper plate 23 and the punch retainer 7 is bent, the angular tube W is pressed by the reaction force thereof, the punch cutter 25 is inserted into the upper surface of the angular tube W, the punching process is performed by the cooperation of the cutter portion 26 of the inner die device 4 and the through hole 27 (see fig. 3 c), and the residue S cut out from the angular tube W by the punching process is received in the residue receiving portion 28 while being blocked by the cover 29 in contact with the lower surface of the lower expanding/contracting block 42 of the inner die device 4.
The inner mould device 4 is arranged on a frame 9. For the subsequent piercing process, the angled pipe W is positioned at the processing position by the positioning drive 11. As described above, the angular pipe W is moved relative to the inner die device 4 for the piercing process. Therefore, the residue S is blocked by the cover 29 and does not come into contact with the lower inside of the corner pipe W.
Next, the opening device 13 will be explained. Fig. 5(a) shows a state after the drive device 13a of the lid opening device 13 performs the raising operation, and fig. 5(b) shows a state after the drive device 13a of the lid opening device 13 performs the lowering operation. Reference numeral 33 denotes a pressing bar, and 34 denotes a residue compressing member which forcibly pushes out the residue S remaining in the through hole 27 of the inner die unit 4 downward after the completion of the punching process. The pressurizing bar 33 has an air passage 35, and when the cover 29 is opened, air is discharged from a discharge port 36 at the tip of the air passage 35 to clean the upper surface of the cover 29, which is a sliding surface of the residue S, and assist the sliding of the residue S. The residue compressing member 34 has teeth 34a that can enter the cutter portion 26 (through hole 27) of the inner die unit 4 when it is lowered, and can discharge the residue (S) remaining in the cutter portion 26 (through hole 27).
When the punching of the angled pipe W is completed or a certain amount of the residue S is accumulated and discharged, the inner die device 4 moves from the punching position (the same position as the punch cutter 25 of the outer die device 3) to the position shown in fig. 5(a) and 5(b) based on the instruction of the control device 21. The inner die assembly 4 is fixed to the frame 9. The frame 9 is movable by a cylinder 12 provided on the pressure base 8. Based on the instruction of the control device 21, the frame 9 moves, and the inner mold device 4 moves to the position shown in fig. 5(a) and 5(b) (i.e., the position where the uncapping device can operate), and is positioned. At this time, the machined angular pipe W is discharged to the left side of the front view of fig. 1. Therefore, the lid opening device 13 and the feed angle pipe W do not interfere with each other.
In this state, the lid opening device 13 performs the operation. This operation will be described below. First, the lid opening device 13 is lowered by the driving device 13a, and the state shown in fig. 5(a) is changed to the state shown in fig. 5 (b). The pressurizing bar 33 is configured to be passed through the inside die unit 4, and pushes the lid 29 downward against the force of the spring 31 biasing the lid 29. Thereby, the residue S accommodated in the residue accommodating part 28 slides on the cover 29 and falls into the tub 37. In addition, the residue S remaining in the through hole 27 of the inner mold device 4 is pressed based on the residue compressing member 34, and falls into the tub 37 by sliding on the cover 29. Further, by providing a function of detecting the height of the lowered position of the residue compressing member 34, the discharge of the residue S can be confirmed.
In the above description, the uncapping device 13 is driven in a state where the angular pipe W is discharged from the press after the piercing process is completed. In the step of performing the predetermined number of punching processes on the angular pipe W and in the middle of the process, the lid opening device 13 may be driven in order to collect the residue collected in the residue containing portion 28 of the inner mold device 4. In this case, the frame 9 is moved by the cylinder 12 to position the inner die unit 4 in the positions shown in fig. 5(a) and 5(b), and the angular pipe W is moved to the left in fig. 1 while the inner die unit 4 is inserted inside the angular pipe W by the positioning drive unit 11.
In the present embodiment, the expansion/reduction mechanism of the < 4 > inner mold device and the < 5 > residue collection mechanism are explained in the form of using the guide mold, but the mold device and the punching apparatus may be in the form of using the expansion/reduction mechanism of the < 4 > inner mold device and the < 5 > residue collection mechanism without using the guide mold.
Claims (5)
1. A die set for processing a pipe, comprising an outer die set disposed on the outside of the pipe and an inner die set inserted inside the pipe to be engaged with a die of the outer die set and processing the pipe,
the outer die device has two guiding dies and corresponding guiding holes in the width direction of the pipe, the guiding dies position the inner die device and the outer die device in the width direction of the pipe,
the inner side die device is provided with a mechanism for fixing the inner side die device on the pipe fitting, the mechanism is divided into 2 blocks corresponding to the up-down direction of the inner side die device, and can move back and forth towards the opening direction of the pipe fitting, and simultaneously convert the back and forth movement into the pressure applied on the part processed on the processing edge of the pipe fitting by the inner die device, the inner die device can be fixed to a pipe, and a residue generated by the punching process of the outer die device and the inner die device is accommodated in the inner die device and is prevented from contacting with the inner surface of the pipe, a cover which can be opened and closed in the vertical direction is arranged at the lower part of the inner side die device, and when the hole is punched, the upper surface of the block at the upper side of the mechanism is in close contact with the inner side surface of the pipe fitting, and the lower surface of the block at the lower side of the mechanism is in close contact with the cover.
2. The die set for processing a pipe member according to claim 1,
when discharging the contained residue, the lid itself forms a slide surface of the residue by opening the lid provided on the inner die device at a point of time when the lid is isolated to a position where no interference with the pipe occurs, to discharge the residue.
3. The die set for processing a pipe member according to claim 2,
the lid has a supporting point for the rotation movement of the lid itself, the lid is closed by an elastic force capable of bearing the weight of the lid but incapable of bearing the weight of plus a certain amount of remnants contained in the inner mold unit, the elastic force keeps the lid in close contact with the inner mold unit when no remnants are present, and the lid is automatically opened at a point of time when the lid is separated from the pipe in a state where the certain amount of remnants contained in the inner mold unit are weighted.
4. The utility model provides a pipe fitting processing is with perforation processingequipment which characterized in that:
the pipe machining boring device uses the die device for pipe machining according to claim 1 or 2.
5. The piercing processing apparatus for processing a pipe member according to claim 4,
the lid has a support point for the rotational movement of the lid itself, and is closed by an elastic force capable of bearing the weight of the residue contained in the inner mold device, and is constantly brought into close contact with the inner mold device by the elastic force, and when the lid is opened downward, the lid is forcibly opened by a lid opening device provided separately from the mold device in the piercing device body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-238349 | 2016-12-08 | ||
| JP2016238349 | 2016-12-08 | ||
| JP2017166514A JP2018094626A (en) | 2016-12-08 | 2017-08-31 | Metal die device for drilling pipe material equipped with pilot die and pipe material drilling device using metal die device |
| JP2017-166514 | 2017-08-31 |
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| CN108160809A CN108160809A (en) | 2018-06-15 |
| CN108160809B true CN108160809B (en) | 2021-11-09 |
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| CN201711177791.5A Active CN108160809B (en) | 2016-12-08 | 2017-11-22 | Die device for pipe fitting machining and piercing machining device for pipe fitting machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108704973A (en) * | 2018-09-05 | 2018-10-26 | 安徽恒兴镀锌有限公司 | A kind of rectangle pipe perforating die and hole-punching method |
| CN110510259B (en) * | 2019-07-05 | 2022-09-30 | 吕文明 | Automatic content filling and recycling system based on intelligent logistics and working method |
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