RU2010645C1 - Apparatus for flanging and corrugating hollow parts - Google Patents

Abstract

FIELD: machine engineering. SUBSTANCE: apparatus has a female die in the form of a retractable rod, having through cross section, through opening, in which a spring-loaded slide-carrier is mounted. The slide-carrier has guides, inclined relative to direction of its motion. The female die is mounted with possibility of radial displacement in a body of a clamping attachment. EFFECT: enhanced efficiency, enhanced quality of products due to simplification of part strip ping process. 2 cl, 2 dwg

Description

 The invention relates to the processing of metals by pressure, in particular to devices for flanging edges and extruding corrugations in hollow cylindrical products.

 A device for flanging and ziggaging hollow products containing a bed with a drive table mounted on it, two disks for fixing and flanging the edges of the workpiece mounted on rolling bearings with the possibility of free rotation, the clamp mechanism with a drive, creasing and flanging rollers.

 In this device, it is difficult to remove the flanged part from both the upper and lower fixing discs, since the part cannot be released from the discs without forced expansion of the bead, and permanent deformation is inevitable, which affects the quality of the products.

 The aim of the invention is to improve the quality of products.

 This is achieved by the fact that the matrix of the tool for extruding the corrugations is made in the form of a rod with a transverse through cross-shaped hole, mounted in the housing of the clamping device with the possibility of radial displacement, and is equipped with a spring-loaded carrier slider located in the cross-shaped hole and having guides located at an angle to its direction displacement.

 Comparative analysis with the prototype shows that the inventive device is distinguished by the execution of the matrix, which allows us to conclude that the criterion of "novelty".

 In FIG. 1 shows a device for flanging and squeezing corrugations in hollow products, section; in FIG. 2 is a section AA in FIG. 1.

 The device comprises a housing 1 with flanging rollers 2, a bed 3 with a clamping device including a housing 4, a tool for extruding corrugations 5, a puller 6. The matrix 7 of the tool for extruding corrugations is made in the form of a rod with a transverse through cross-shaped hole "a", installed in the housing clamping device with the possibility of radial displacement and is equipped with a spring-loaded slider carrier 8, placed in a cross-shaped hole and having guides located at an angle to the direction of movement of the piston 9. Spring 10 resting on the lid 11 serves to self-aligning matrix. The drive for the expanding cams 12 of the device, which is mounted motionlessly on the armrests 13, is a tapered bushing 14 in contact with the generators of the rollers 15 and mounted on the piston rod 16 of the power cylinder 17. For convergence of the cams, springs 18 are used, supported by a sheared pin 19, pressed into the housing fixtures. Shaped copier 20 is rigidly fixed to the column 21 of the cover 22 and forms a cavity "b" for supplying compressed air.

 To control the position of the matrix, a limit switch 24 is installed through the flag 23. The tool for extruding the corrugations, set aside by the springs 25, allows the puller to be separated from the copier and the article 26 can be brought out along the axis by a predetermined size.

 The position of the puller is controlled by the switches 27, 28 by means of the flag 29. The smoothness of travel of the drive cross 30 from the power rod 31 is provided by the springs 32.

 The device operates as follows.

 The workpiece 26 is installed in the hole shaped copier 20, based on the lower end. Then, compressed air is supplied into the cavity “c”, moving the piston rod 16 downward, unclenching the cams 12 by the conical sleeve 14, centering and securing the product 26 for processing. Having removed compressed air from the cavity “b”, the carrier-slider 8 from the efforts of the spring 10 brings the matrix 7 to the inner surface of the product 26. The housing 1 with flanging rollers 2 is brought in, rotation and working feed for flaring the edge to a hard stop, “nursing” and retraction to the starting position. At the same time, the drive (not shown) of the tool for receiving the corrugations 5 is turned on. After the tool is removed to receive the corrugations 5, the springs 25 supply compressed air to the cavity “b”, the piston 9, overcoming the force of the spring 10 pushes the carrier-slider 8, diverting the matrix 7 from the inner surface products 26. The supply of compressed air to the cavity "g" unfastens the product. When applying compressed air to the cavity "d", the puller 6 brings the product 26 upward, providing convenient removal after processing.

 After completing the operation, all the working bodies of the device occupy the original position.

 A transverse through cross-shaped hole for the direction in the matrix 7 of the slide carrier 8 allows to ensure the stability of obtaining the geometric parameters of the product and the consistency of the tool for extruding corrugations. (56) Copyright certificate of the USSR N 1532131, cl. In 21 D 19/00, 1988.

Claims (2)

 1. DEVICE FOR EDGING AND EXCHANGE OF GOVERNANCE IN HOLLOW-UP PRODUCTS, comprising a housing with flanging rollers, a bed with a clamping device including a housing, a tool for extruding corrugations and a puller, characterized in that, in order to improve the quality of products, the matrix of a tool for extruding corrugations made in the form of a rod with a transverse through cross-shaped hole installed in the housing of the clamping device with the possibility of radial displacement and equipped with a spring-loaded slider carrier, located in the cross a different hole and having guides located at an angle to the direction of its movement.  2. The device according to p. 1, characterized in that the matrix is installed with the possibility of self-installation.

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