SU1442471A1 - Telescopic gripper - Google Patents

Abstract

The invention relates to the field of lifting and transport machinery and can be used to load containers, feed blanks into dies, in production lines as a reloading mechanism. The purpose of the invention is the expansion of technological capabilities with one-sided reloading of products by using for products of different lengths. The telescopic grip is mounted on a lifting mechanism and contains a stationary section 2, a drive with gear 9 and a tire 39 with ratchet stops 40 for several dimensions of workpieces in length, as well as two pull-out sections — an intermediate 12 and an upper 16, and the latter is fixed on the latter, 25 The drive gear 9 engages with two gear wheels 7 of section 2, which are connected to gear rack 13 of section 12. Section 2 also has a toothed rack 5, which is w, and with gears 18 of section 12, which are connected between with intermediate gear gear 19. Also, gears 8 are connected with gear rack 20 of section 16, and gear rack 14 is connected with gear wheels 15 and 27 of section 16. These gears are interconnected by means of gear 26. Gear wheel 15 is integral with hub 28 non-reversible overrunning clutch connected by means of rollers 29 to the clip 30 of the clutch. The latter is made integral with an asterisk wrapped around the chain, which also wraps around the asterisks rigidly connected with the rollers 34. 1 3. Clause of f-ly, 8 ill. (L

Description

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The invention relates to the field of lifting and transport machinery and can be used to load containers, feed blanks into dies, in production lines as a reloading mechanism, and so on.

The aim of the invention is the expansion of technological capabilities with one-sided reloading of products of different lengths.

FIG. 1 shows a device with a telescopic grip, general view; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. 2; in fig. 4 shows a section B-B in FIG. 2; in fig. 5 is a section of YYD in FIG. 3; in fig. 6 is a section d-d in FIG. 3; in fig. 7 shows section EE of FIG. 3; in fig. 8 - section MF in FIG. 3

The telescopic grip contains a frame 1 rigidly fixed on the lifting mechanism (for example, a pantograph type), a fixed section 2 (Fig. 1, 3 and 5) equipped with rollers 3 (Fig. 5) sitting on a section 2 x 4 pressed into the body , toothed rack 5 (Fig. 5) fixed to the body of section 2 by means of bolts 6 (Fig. 6) and two double gear wheels 7 (Fig. 3 and 7) fixed to axles 8 and meshed with the pinion gear 9 (FIG. 3) sitting on the shaft 10 (FIG. 5) of the reversing drive 11 (FIG. 1) of the telescopic gripper (for example, a gear motor).

The rollers 3 (Fig. 6) of the fixed section 2 enter into the guide grooves of the intermediate sliding section 12 (Fig. 2 and 1), the casing of which is made with three toothed racks. Two GB rails (Figs. 3 and 5) are meshed with the gear wheels 7 of the fixed section 2, and the third 14 are: with the gear wheel 15 of the upper pull-out section 16 (Fig. 3). Also in the body cavity of the first sliding section 12, two gears 18 (FIG. 3) are fixed by two axes 17 (FIG. 6), which are simultaneously engaged with both the intermediate gear 19, the gear rack 5 of the fixed section 2, and gear rack 20 (Fig. 3), fixed with bolts 21 (Fig. 6) on section 16 (Fig. 3). This section, as well as the stationary section 2, is equipped with rollers 22 fixed on axles 23 pressed into the housing section 23 (Fig. 6) and entering the guide grooves of the first slide section 12.

The gear wheel 15 (FIG. 3), seated on the axis 24 (FIG. 6), which is fixed in the body of section 16 and the arm of the gripping section 25, engages with the intermediate gear 26, and the latter with the gear wheel 27 (FIG. 3). The gear 26 and the gear wheel 27 are also fixed to the body of the section 16 by means of axles.

The gear wheel 15 is integral with the hub 28 of the overrunning roller clutch by means of the rollers 29 connected to the clutch of the clutch 30 (Fig. 6). The yoke 30, like the gear wheel 15, is fixed to the axis 24 by means of bearings and is equipped with a toothed crown 31, which is endlessly traction

the chain 32 is connected with the toothed rims 33 of the load-carrying rollers 34 (Fig. 6). The latter are fixed with the help of axes 35 on the platform 25. The rollers 34 have the ability to move the load, for example sheet blank 36.

0 Chain 32 also wraps around the bypass rollers 37 and tension rollers 38 (Fig. 4). The latter are installed in the slots of the gripping section 25 with the possibility of vertical displacement during tensioning of the chain 32.

5 On the lift mechanism 1, the tire 39 is also rigidly fixed with ratchet stops 40 (Fig. 3) sitting on the axles 41 (Fig. 8). Ratchet stops have the ability to rotate clockwise when abutting them moving to the left.

0 (Fig. 3) of the workpiece 36 and fixed in the initial position against rotation counterclockwise by the stops 42 (Fig. 8).

The gap between the ratchet stops 40 and the rollers 34 of the pad 25 is chosen as follows.

In such a way, the blank 36 of any size can freely move to the left. The number of ratchet stops 39 and their pitch are selected depending on the size of the blanks in length.

All grip sections are fitted with stops

Q (not shown) preventing the rollers from exiting the respective guide and gear racks from engaging with the toothed wheels. There are also limit switches (not shown) installed on the sections, which enable and disable the capture drive

5 at the right time in the right direction.

Telescopic capture works as follows.

Lifting and lowering the gripper for loading and unloading it at the desired height are carried out using the lifting mechanism 1. After loading the telescopic gripper (Fig. 1, rightmost position), the operator 11 automatically turns on or by the operator, which rotates gear 9 (Fig. 3)

5 clockwise and pushes the grip to the left. It happens like this.

The pinion 9, rotating clockwise, rotates the gears 7 counterclockwise, which move the gears 13 of the intermediate section 12

0 on the rollers 3 to the left (Fig. 3 and 5). The gears 18, meshed with the rack 5 of the stationary section 2, rotate counterclockwise, the arrows and move the rack 20, extending the top extension section 16 along the guides of section 12

5 left. Section 16 is moved to twice the distance compared to section 12. Moreover, the presence of the second gear wheel 18 and the intermediate gear 19 allows

increase the telescopic extension of section 16. Thus, when one gear 18 comes out of engagement with gear rack 5, the second remains in engagement and rotates the first through gear 19.

With the same purpose, two gears 15 and 27 and intermediate gear 26 are mounted on section 16.

When the telescopic extension section 16 is one of the gears 15 or 27, which are engaged with the rack 14, or both immediately rotate counterclockwise. If the gear wheel 27 rotates, its rotation is transmitted through gear 26 to the gear wheel 15.

The rollers 29 are wedged between the hub 28 and the yoke 30 and the rotation from the gear wheel 15 is transmitted to the ring gear 30, which drives the endless pulling chain 32 and with its help rotates the ring gears 33 and the load-carrying rollers 34 of the platform 25. Preparation 36 along the load-carrying rollers 34 is moved from the right end of the gripping section 25 to the left, extends below the thickness 39, freely lifts the ramp stops 40.

After the telescopic sections 12 and 16 are fully extended to the left, the actuator 11 is switched off, and the rotation of the load-carrying rollers 34 stops. The device provides for the installation of stops that limit the movement of sections 12 and 16 to the left, and the limit switch, which ensures that the drive 11 is turned off in this position.

The ratchet stops 40, corresponding to a given or longer length of the workpiece, are free and, under the action of their own weight, return to the initial state, abutted against the stops 42 (Fig. 8).

A reversing drive 11 of the telescopic gripper turns on and begins to rotate gear 9 counterclockwise. The gears 7 rotate clockwise, moving section 12 to the right.

The gears 18 rotate clockwise, moving section 16 to the right.

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wherein the gear wheel 15 with the overrunning clutch hub 28 rotates clockwise, the rollers 29 wedge, breaking the connection between the hub 28 and the yoke 30. The workpiece 36, resting the right end of the ratchet stop 40 corresponding to this size in length, stops. The rollers 34 of the gripping section 25 freely roll over it without friction, at the same time supporting it.

Upon further movement of section 16 to the right, the workpiece 36 is completely freed and falls to the place of unloading (chip, container, etc.).

After the sections 12 and 16 are fully extended to the right, the drive 11 is turned off (stops are provided in the device to restrict the movement of sections 12 and 16 to the right and the limit switch to turn on the drive 11) and the telescopic ixsar is ready to repeat the operating cycle.1 and

Claims (2)

1. Telescopic gripper containing mounted: ia lifting / lowering frame fixed section h kinematically through elements of the extension mechanism associated with this section and between each other intermediate and upper extension sections, characterized in that, in order to spread technological capabilities under one-sided overload products of different lengths, the top extendable section is equipped with a platform with load-carrying rollers and kinematically connected to HHVUI gear wheels, and at the intermediate skid- bchata rake associated with the latter, wherein the load-bearing rollers mounted on a crane P1ina shutdowns. 2. A telescopic gripper according to Claim 1, characterized in that one of the gears of the upper extendable section is provided with an irreversible overrunning roller clutch. AND B-b f .- 25 J7 /four III 111 111iL -1tG1g, -tG-g .4, miii-ei- b G - -; B-b B .- : fr F w / fieL (a / X 52 33 five / : S $: SSSSSSSSSSSSSSSSSSSS r five/ S4 3S Sh § -five 7 ABOUT Reese D