SU914231A1 - Machine for connecting parts by plastic deformation - Google Patents

Description

The invention relates to the mechanical assembly work, in particular to the equipment dpya connection details plastic deformation.

A known machine for connecting parts by plastic deformation, containing a drive bottom clamp coaxially on the frame, and a block of rotating mandrels, as well as a working tool block with a feed mechanism and a mechanism for controlling the presence of parts in the assembly zone ω.

However, the known device does not provide improved performance.

The aim of the invention is to increase productivity.

This goal is achieved by the fact that in a machine tool for connecting parts with plastic deformation, containing mounted, coaxially on the frame of the driving spindle, the clamp and the rotating acac-block, ·. but

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also the working tool block with its feeding mechanism and the mezanism of control of availability of parts in the assembly area, the working tool block executed in the form of a hollow rod located in the supports with the possibility of axial movement, and a rod installed inside the rod with the possibility of relative movement, as well as spring-loaded P- a figurative two-armed lever with a screw stop at one end, hinged on the rod with the ability to interact with one arm with a mechanism for controlling the presence of parts in the assembly area, and the other through a screw the stop is with one end of the stem, while one of the tools of the block is installed on the other end of the stem.

Figure 1 shows the machine, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - section VG. na fig.? (block of working tool3

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that moment of the beginning of the working stroke in the presence of all assembled parts in the assembly area) on Lig.4 ~ too, in the absence of one of the assembled parts in the assembly area. §

The machine has four working positions associated with the technological cycle, each of which contains mounted on a statin 1 block of rotating mandrels 2 with drive 3, block 4 of working tool with its feed mechanism 5, as well as lower clamps 6, which are driven from shaft 7, and a mechanism 8 for monitoring the availability of parts in the 15th zone of the assembly. The unit 4 of the working tool is made in the form of a hollow rod 9 located in the supports 10 with the possibility of axial movement of the rod 1! installed inside the rod 9 s _{? D) with the} possibility of relative movement, and spring-loaded U-shaped two-armed lever 12 with a screw stop · 13 at one end, pivotally mounted on the rod 9. Pa

14, and on the other there is a spring 15, providing the installation of the rod 11 to its original position. The double-shouldered lever 12 is interoperable with one arm with the mechanism 8 for controlling the presence of parts in the assembly area, and the other through a screw stop 13 with the end of the stem 11. To prevent rotation of the rods 11 around their axes directly above the forks 16 is fixed to the frame! a common guide bar 17. The reciprocating movement of all four rods 9 is performed by a lever system from one cam of the feed mechanism 5. The lever system consists of four parallel levers 18 mounted on a single shaft 19. On the same shaft 19, there is one driving lever 20.

The machine works as follows

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zom.

The drive 3 rotates the upper mandrels 2 is turned on at the beginning of work and does not turn off until its end, the assembled parts 21 are installed on the lower clamps 6 "When the drive 22 is turned on, the rest of the machine mechanisms begin to move. At the command of the cam shaft 7, the lower clamps 6 are raised. In the process of lifting, the assembled parts 21 move towards the upper mandrels 2, which at this moment

they are fixed, as they are disconnected from the drive 3, and are pressed against them. Then, at the command of the camshaft of the feed mechanism 5, the rotation drive 3 is connected to the mandrels 2, and the working movement of the rods of 9 blocks 4 ’of working tools begins. In this case, the stop screw 13 of the two shoulders lever 12 passes a certain distance from the meeting with the end face of the rod 11, rests against it, and together they complete the movement.

At the end of the working operation, the rod 9 makes a move back, and the rod 11 with the tool 14 under the action of the spring 15 occupies the initial position. During the withdrawal of the tool 14, the rotation of the upper mandrels 2 stops, the lower clamps 6 with the assembled parts 21 are lowered to their original position.

The described sequence of operation of the mechanisms takes place in the case when all the elements of the assembly arrive at the working position.

If at least one of the assembled parts is missing in the assembly area, the control mechanism 8, interacting with the double-arm lever 12, rotates it. In this case, the stop screw 13 rises so much that when the rod 9 is moving forward, it cannot affect the end of the rod 11, and therefore the tool 14 does not fit the assembled parts 21, in connection with. what is not performed technological operation on this position.

The present invention allows to create a high-performance machine for group assembly of parts by the method of plastic deformation.

Claims (1)

Claim The machine for connecting parts by plastic deformation, containing the drive bottom clamp mounted coaxially on the frame and the rotating mandrel block, as well as the working tool block with its feed mechanism and part presence control mechanism in the assembly area, cast it in order to increase productivity, the unit of the working instrument is made in the form of a hollow rod, located in the supports with the possibility of axial movement, as well as a spring-loaded U-shaped two-sided pick.] and with a screw stop on one conge, hinge914231 five but attached to the rod with the ability to interact with one arm with a mechanism for controlling the availability of parts in the assembly area, and the other through a screw stop with one end of the rod, while at the other end of the rod 6 one of the block tools is installed.