JPH05227U - Press mold equipment - Google Patents

Abstract

(57) [Summary] [Purpose] A single vertical press can be used to perform multi-step press forming such as mouth-drawing of relatively long pipes. [Composition] Converting the vertical pressing force of the press ram to the horizontal pressing force, and moving the cam slide equipped with the punch or die in a straight line to perform the forming process. A press die device that is attached to a press machine and performs simultaneous forming processing with one operation of a press ram.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a die device for forming a work that requires a multi-step forming process. The present invention relates to a die device that uses a cam die and is suitable for the mouth-drawing of a tubular work.

[0002]

[Prior art]

  For example, in a muffler tank used by being incorporated in an air conditioner, the pipe end or mouth is squeezed. It is made of elongated aluminum alloy tubes.   Such a tubular body or a cylindrical body having a narrowed mouth portion is usually provided as shown in FIG. A die 2 in which a cavity having the shape of a desired molded product is formed in the upper mold 20 by using a press machine. 1 is attached, knockout 22 is given in the cavity, and lower mold 23 The punch 24 is attached, and the mouth is drawn by lowering the upper ram of the press machine. It

[0003]   Also, when the work is a long pipe, the required press stroke is too large. Therefore, using a horizontal ram type special horizontal press machine, it is molded by a horizontal moving die. It is carried out.

[0004]   By the way, when such a pipe body is drawn, buckling etc. occurs in the work. 6 (a) in FIG. ), (B), (c) workpieces 25A, 25B, 25C mouths 25Aa, 25Ba , 25Ca, it is necessary to change the shape stepwise. The appropriate molds are prepared and the molding work is performed sequentially.

[0005]

[Problems to be solved by the device]

  However, in the drawing process of such pipes, one press machine When performing a series of step-by-step forming operations, the mold die is It is necessary to replace b. It was bad and there was a problem that the working time was long.

[0006]   In addition, we have multiple press machines, and attach molds to each according to the molding stage. , If the work is moved to perform the work continuously, the workability is improved, but Comparison of production lots due to the large number of production machines and the large number of workers However, there is a problem that the economy is rather worse when the target is small. Especially on the side When using a die press, there was a problem in terms of economy.

[0007]   The present invention was devised in view of the above situation, and the problem is Can perform multiple stages of forming processing with a single press machine, such as pipe drawing processing. Even if the work is a long tubular body, it can A general press machine can be used without the need for a press machine for good workability. , To provide a press die device that is labor-saving and highly economical.

[0008]

[Means for Solving the Problems]

  In order to solve the above problems, the present invention provides a process for forming a work in multiple stages. This is a dieless device that changes the vertical pressing force of the press ram to horizontal pressing force. Then, the cam slide equipped with a punch or die is moved straight to perform molding. A multi-stage molding die with a cam die is attached to one press machine to Press die device that performs simultaneous forming by operation, and the work consists of a tubular body , The upper and lower receiving dies for supporting the work by the cam type, and narrowing the end of the work A die for mouth-drawing processing comprising a cam slide having a drawing die and a vertical cam. It proposes a roller press die device.

[0009]

[Work]

  Attach all required forming dies to the upper and lower die mounting boards of the press in order of forming stage, and perform each forming The work corresponding to each molding stage is supplied horizontally to the die and the press ram is pressed. When moving down, each work moves in the forming die in one operation of this press ram. Simultaneously pressure-molded by the punch or die of the cam slide that moves straight in the horizontal direction. Be done. By sequentially moving the workpieces to the high molding stage side, from the final stage molding die Finished products can be obtained. Therefore, according to the present press die device, With a single vertical press, it is possible to perform multiple stages of work forming at the same time. In addition, it is possible to continuously obtain finished products in a plurality of stages.

[0010]   Further, in the case where the press die device is used as a die device for narrowing the mouth of the pipe, When the pipe is fed horizontally to the lower die and the press ram is moved downward, Each movement of the slam causes each work to move the upper die and lower die in each molding die. A cam slide diaphragm that is clamped by and moves straight by a vertical cam. A pipe die is used to draw the pipe. That is, the upper and lower molds of the vertical press machine Even with a pipe that is relatively long with respect to the mounting plate spacing, it is possible to use one normal vertical press machine. As a result, it is possible to continuously carry out a multi-step drawing process.

[0011]

【Example】

  1 is a plan sectional view of a press die apparatus according to an embodiment of the present invention, which is taken along the line II of FIG. 2 is a plan sectional view taken along the line, and FIG. 2 is a partial fracture of a single die in the press die apparatus of FIG. FIG. 3 is a perspective view, FIG. 3 is a side sectional view taken along the line III-III when the single mold shown in FIG. 2 is opened, FIG. 4 is a side sectional view corresponding to FIG. 3 showing the single mold of FIG. 2 when closed.

[0012]   As shown in FIG. 1, the press die apparatus of the present invention has five die A, B, C, D and E. It consists of a set of single molds. These molds A, B, C, D and E are work 1 The upper receiving die 3 (see FIG. 3) attached to the upper die mounting board 2 for sandwiching the The lower receiving die 5 attached to the attachment board 4 and the lower die for performing the mouth-drawing processing on both ends of the work 1. Aperture dies 6A and 6B on both sides of the position where the receiving die 5 is sandwiched, and the aperture dies 6A and 6B. The cam slides 7A and 7B which are fitted to each other and horizontally reciprocate on the lower die mounting board 4, and Mounted on the upper mold mounting board 2 to move the cam slides 7A and 7B of And vertical cams 8A and 8B that are vertically moved by an upper press ram (not shown) The upper press ram is operated in one operation and each work in dies A, B, C, D and E is performed. (2) It is designed to be able to perform mouth-drawing processing at both ends.

[0013]   These five sets of dies A, B, C, D and E are the cavities in the drawing dies 6A and 6B. Tee, the shape of the die hole is different, from the first rough forming process to the finish forming process It is installed in parallel between the upper and lower die mounting boards of the press in the order according to the drawing degree. . That is, if the work 1 is moved from the mold A to the mold E in sequence, the drawing process is performed. It is possible to finish, and when processing a large amount of work, a new work 1 is added to the mold A. Is continuously supplied and the finished product is continuously taken out from the mold E. Performing work equivalent to performing 5 stages of drawing in one press operation. You can

[0014]   The structure of each single mold will be described in more detail with reference to FIGS. 2, 3 and 4.   The lower die plate 9 attached to the lower die mounting board 4 of the press machine has a lower die at the substantially center portion. The lower die plate 11 is attached via the plate receiver 10. This bottom die play The lower receiving die 5 is attached to the belt 11. It is placed horizontally on this lower receiving die 5. In the axial direction of the workpiece 1, a pair of cam slides are symmetrically arranged with the lower receiving die 5 interposed therebetween. 7A and 7B are slidably arranged on the lower base plate 9. This cam slide 7A, 7B is fitted with the drawing dies 6A and 6B centered on the axis of the work 1. The die holes of the drawing dies 6A and 6B are, as described above, the work of drawing the mouth of the work 1. The shape of the upper and lower receiving dies 3 and 5 is made by a spring body on the back of the die. Knockouts 12A and 12B biased in the opposite direction are attached.

[0015]   Between the pair of cam slides 7A and 7B and the lower die plate 11, respectively, A pair of return springs 13A, 13B, 14A, 14B are applied in the width direction, and a cam slide is performed. 7A and 7B are urged in the backward direction with respect to the lower die plate 11. Also this The cam slides 7A and 7B have a rear surface formed on a rearward side with a slope of 45 degrees to form a cam surface 7A. a and 7Ba. In addition, the cam slides 7A and 7B slide in the sliding direction. Lock plates 7A, 7B, cam slides 15A, 15B and lower die plate 11 Side plates 16A and 16B are mounted on the lower die mounting board 4 on both sides in the width direction of The vertical cams 8A and 8B are prevented from being displaced.

[0016]   An upper die plate 17 is attached to the upper die mounting plate 2 at a position corresponding to the lower die plate 9 vertically. An upper die plate 19 is attached via a plate receiver 18. Dip on this The upper receiving die 3 corresponding to the lower receiving die 5 is attached to the rate 19 and The work 1 can be held between the receiving die 5. Also, dip on this A pair of vertical cams 8A, 8A with a rate 19 and a predetermined distance in the work axis direction. B is attached to each of the vertical cams 8A and 8B. The lower part on the 19 side can slide on the cam surfaces 7Aa, 7Ba of the cam slides 7A, 7B. 45 degree inclined descending surfaces are formed as cam surfaces 8Aa and 8Ba. The cam slide 7A, 7B is pressed by the downward movement of 8B and slides on the lower base plate 9. It can be moved to the lower die plate 11 side.

[0017]   A transfer machine (not shown) is used to move the work 1 in the press die device. I am using the structure. That is, in conjunction with the vertical movement of the upper press ram, when the mold is opened, the vertical movement Insert the work feed mechanism between the dies, and hold both ends of the work with the fingers. It can be raised, moved and fed to the next mold. Such a transfer mechanism Is known.

[0018]   In the press die apparatus configured as described above, when the die is opened as shown in FIG. After the work 1 is placed on the lower receiving die 5 by the lancer mechanism, the upper press ram is The vertical cams 8A and 8B move downward together with the upper die plate 19, and the cam surface 8 By sliding contact between Aa, 8Ba and cam surfaces 8Aa, 8Ba of cam slides 7A, 7B The cam action resists the biasing force of the return springs 13A, 13B, 14A, 14B, Horizontally moving the slides 7A and 7B on the lower base plate 9 toward the lower die plate 11 side. become. The upper receiving die 3 and the lower receiving die 5 sandwich the work 1 and at the same time, the work 1 Both ends of the squeezing die 6A, 6B fitted on the cam slides 7A, 7B The narrowing process will be performed.

[0019]   When the upper press ram rises after finishing the drawing process, the upper receiving die 3 and the vertical cam 8A and 8B move up and knocks built into the cam slides 7A and 7B Due to the springs of the outs 12A and 12B, the processed work 1 is placed on the lower receiving die 5. It will remain. Then, the transfer mechanism is activated and the lower die of each mold is 5 Lift the work 1 on it, move it to the next stage mold, and place it on each lower receiving die 5. The work 1 which has been finished and finished is carried out of the press machine. This After the first work piece has been carried out of the press machine, As long as the work is supplied, one finished product is delivered every time the upper press ram is operated. Will be.

[0020]   As described above, according to the mold of the present embodiment, the structure of the mold is relatively simple, and the normal vertical Both ends of a relatively long pipe that requires multiple stages of processing using one die press machine The reprocessing can be performed very efficiently and thus economically.

[0021]

[Effect of device]

  As is clear from the above description, according to the present invention, the following effects can be obtained. (1) A single press machine can simultaneously perform a multi-step forming process of a work. (2) A plurality of stages of finished products are continuously obtained for each operation of the press ram. be able to. (3) The mold structure is relatively simple. (4) Therefore, it is possible to work a molded product such as a tube body that requires multiple stages of molding work It can be produced well and economically. (5) It requires a long stroke, such as when drawing a relatively long pipe. Even if there is, a normal vertical press machine can be used for molding without the need for a dedicated press machine. Can be done.

[Brief description of drawings]

1 is a plan sectional view of a press die device of the present invention, which is a sectional plan view taken along line I-I of FIG.

FIG. 2 is a partially cutaway perspective view of a single mold in the press mold device of FIG.

FIG. 3 is a side sectional view taken along the line III-III when the single mold shown in FIG. 2 is opened.

FIG. 4 is a side sectional view corresponding to FIG. 3 showing the single mold of FIG. 2 when closed.

FIG. 5 is a side sectional view showing a conventional die for aperture drawing.

FIG. 6 is a cross-sectional view showing a stage of work drawing.

[Explanation of symbols]

A, B, C, D, E mold 1 work 2 Upper die mounting board 3 Top receiving die 4 Lower die mounting board 5 Lower die 6A, 6B Aperture die 7A, 7B cam slide 8A, 8B vertical cam 11 Lower die plate 12A, 12B knockout 13A, 13B Return spring 14A, 14B Return spring 19 Upper die plate

Claims (2)

[Scope of utility model registration request] 1. A press die apparatus for forming a work in a plurality of stages, which converts a vertical pressing force of a press ram into a horizontal pressing force and linearly moves a cam slide having a punch or a die. Attaching a multi-stage molding die with a cam mold that performs molding processing to one press machine,
A press die apparatus which performs simultaneous forming processing by one operation of a press ram. 2. A mouth stop including a vertical slide die, the work being a tubular body, the cam die having upper and lower receiving dies for supporting the work, a cam slide having a stop die for narrowing the end of the work, and a vertical cam. The press die apparatus according to claim 1, wherein the press die apparatus is a working die.