SU740368A1 - Thread-rolling machine tool - Google Patents

Description

The invention relates to the treatment of pressure cutting machines, in particular, thread-rolling devices with radial tool feed. A knurling device is known, including a guide pipe, a sector chopper performing reciprocating swinging movements and used for reorientation and single delivery of blanks into the grooves of the separator, and the separator feeding the blanks into the rolling zone 1) The disadvantage of such a device is the loss of time to return the csKTOfH cutter to its original position, as well as to the impossibility of using it to feed and reorient long items with bolt heads. The closest to the one proposed by the technical essence is a thread rolling machine containing a loading device with a guide tray, a movable and stationary head with round dies mounted on them. a separator mounted on a stationary head and the machine control system 2. However, this device has a number of disadvantages: the inability to feed rods without heads; wedging of long blanks such as a rod with a head in the process of reorientation as they pass through the radius and vertical sections of the tray. The purpose of the invention is to provide a & reliable orientation and single delivery of long core products, increasing the productivity of the machine. This is achieved by the fact that the thread rolling machine of the proposed design is equipped with a housing mounted on a fixed hopovka located in the housing between the guide tray and the separator under White shaft to the axis of the White roll die and the tapered drum with a groove made lio to its periphery, as well as a turning mechanism, and fixing the position of the conical drum associated with the movable plate through the control system.

The mechanism of rotation and fixation is made in the form of a ratchet kopes.depytepnyh disk and rocker arm with a dog, mounted on the shaft, a lock with a spring-loaded

 The jfrra KOlvf and Ci drive are mounted with Hbix on a fixed head, with the rocker belt being made with a protrusion interacting with a spring-loaded cam, and Sw Zoyo with a power drive, and the working surfaces of the ratchet tooth and pawl are tailed with a preliminary clearance. Such an embodiment of the device enables the reorientation of long batches with and without heads from the inclined angle to the horizontal one, as well as the performance of the change of movement of the rotator. FIG. 1 shows a feeding device, a longitudinal section; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 is a section b-B in FIG. 1. A two-roller thread rolling machine with a loading device consists of a bed 1, carrying a support 2 and a lifting head 3, on a spindle x of which 4 and 5 are installed round thread rolling dies 6 and 7. A separator with this 8 is mounted on the spindle 4 of the fixed head, and the inclined tray 9 is fixed on the bracket 10. The conical drum 11 is grooved on the inclined shaft 12, mounted on rolling bearings 13 and 14 in the housing 15, which is mounted on the fixed head 2 The axis of the conical drum is inclined to the x axis of the scindel than on Ensures the reorientation of core products with head and without heads and feed them into the grooves of the separator. . , On the tray 9, pin-and-pin assemblies 16 and 17 are mounted. On the threaded shaft 12 there is a mechanism for rotation and fixation of a conical drum, including a ratchet 18, on the hub of which it is mounted; a pitch disc 19, a yoke 20 carrying the pawl 21. On the yoke 20, a projection 22 is made 22 On the bracket 23 on the axis 24 a spring-loaded clamp 25 is installed, on which is mounted on the axis 26 a spring-loaded cuyac 27 and a pin 28, limiting the rotation of the cam 27. On the stationary head 2 is mounted on the axis 29 of the pneumatic cylinder 30 mechanism

a rod 31 of which is connected via a fork 32 and an axis 33 to a rocker 20.

A gap 01 is set between the front and rear ends of the dog 21 and the ratchet tooth D 18 .-

Setting the gap q and the device consisting of the protrusion 22 on the rocker arm 20 and the spring-loaded cam 27 pivotally mounted on the retainer 25 ensures synchronous operation of the ratchet mechanism and the fixation mechanism from a single pneumatic cylinder drive through the machine control system.

The design, the separator and the inclusion mechanism of the separator driven by a movable head are known. A two-roller thread rolling machine with a loading device operates as follows. Products, for example, long rods with a head without a head, are individually fed from the loading device, by the force of their own weight on the inclined tray 9 into the groove of the conical drum 11. Pin pinch-off cutters 16 and 17 provide single-piece delivery of blanks and unload the drum from the weight of the column of blanks that are in tray. The movable head 3 moves forward, at the same time a command is issued to the pneumatic actuator to rotate the tapered drum 11. The rod 31 rotates the beam 20 through the fork 32 and the axis 33. While the dog 21 selects the gap O between the surfaces G of the dog and the ratchet tooth, the protrusion of the yoke 20 Finds on a spring-loaded cam 27, which rests on the pin 28 and removes (| 1xator 25 from the groove of the separating disk 19. In the process of further rotation, the pawl 21 approaches the ratchet tooth 18 and the rotation of the conical drum 11 begins. The slave 2O disengages from the cam 27, the sub-clamped blue fastener 25 rotates until it touches the divider disc 19 and slides along its cylindrical surface until it slides into the next sub groove of the separating disc. &. After the end of the supply of the movable head 3, thread rolling on the workpiece begins to be found in the groove of the separator 8.

At the end of the thread rolling, the movable head 3 returns to its original position.

At the same time, a command is issued to return the rocker arm 20 to its original position, during which the protrusion 22 of the rocker arm 20 finds the cam 27 deflecting it around the axis 26.

In this case, the latch 25 continues to hold the conical drum 11 against rotation.

During the return of the movable head 3 to its initial position, the separator 8 will turn through a certain angle, feeding the next billet to the rolling zone

The roll-on part will fall out of the groove of the separator into the diverting flow.

After returning, the mobile head then recycles.

invention formula

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Claims (2)

1, a thread rolling machine, comprising a loading device with a guide chute, a movable and stationary head with round rezbonakatnymi dies mounted on them, a separator mounted on a stationary head, and the control system of the machine, increase productivity and ensure reliable orientation with single delivery of long rod products, it is equipped with a body fixed on a fixed head located in the body between the guide tray and the separator at an angle thread rolling axis, ppash-. a shaft and a conical drum mounted on the shaft with grooves along its periphery, as well as a mechanism for rotating and fixing the position of the conical drum connected to the movable head through the control system. 2. The machine in accordance with claim 1, stating that the turning and fixing mechanism is made in the form of a ratchet wheel, a separating disc and a yoke with a pawl, mounted on the shaft, and also a detent with a spring-loaded cam and a power drive mounted on a stationary head, the rocker arm being made with a protrusion interacting with a spring-loaded cam and connected with a power drive, and working surfaces. Yuba ratchet and dogs installed with a preliminary clearance. Sources of information taken into account in the examination 1. The patent of the Federal Republic of Germany 12480OO, l. In 21 N 9/02, published. 1968. 2. Malov A.P. Loading devices for machine tools. M., Mechanical Engineering, 1972, p. 393, fig. 277. L 740368 Kind of p $ ernugpo 22. 32 ZU