JPS5853981B2 - General purpose assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a line transfer machine, and attempts to simplify the configuration and reduce costs of the transfer machine by standardizing the operation and drive source of the tool head at each station. It is something.

Conventionally, in order to simplify and reduce the cost of transfer machines, the general movements of each tool head relative to the workpiece on the pallet are: ■ Vertical reciprocating motion relative to the pallet surface, ■ Vertical reciprocating motion relative to the pallet surface and parallel to the pallet surface. A long reciprocating member is used to unify the reciprocating motion perpendicular to the pallet surface, which is common in three cases: a combination of linear reciprocating motion, and a combination of vertical reciprocating motion with respect to the pallet surface and swinging motion parallel to the pallet surface. Various attempts have been made to provide motion in a plane parallel to the pallet by some other means.

Fig. 7 shows an example of the conventional method, which is attached to a sliding body 3 that reciprocates in the longitudinal direction of the tool mounting plate 1 that reciprocates perpendicularly to the pallet surface. A pinion 5 and a lever 6 attached to the pinion 5 are oscillated by a rack 4, and the tool head 2 is caused to reciprocate in a straight line parallel to the pallet surface via a link 7.
Since it is necessary to provide a rack 4 and a pinion 5 for each tool head 2, the device becomes somewhat complicated, and the reciprocating movement of the sliding body 3 and the rack 4, which have a large mass, is inconvenient for increasing the speed of the device. was there.

Figures 8, 9, and 10 are another conventional example,
A plate 12 that can be moved up and down in parallel with the assembly line 11 is provided, and the assembly heads 13 of each station are mounted on this plate 12 so that each assembly head 13 can be moved up and down simultaneously, and the rotation of each head is Although the shaft 14 is made to swing all at once via a spline 15 and a lever 16 or a rack and pinion, etc., it still requires a combination of a spline 15 and lever 16 or a rack and pinion for each head. Therefore, the disadvantage is that the device becomes complicated, and the assembly head 1
3 had the disadvantage that it was limited to the swinging type.

The present invention provides a general-purpose assembly device that eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to FIGS. 1 to 5.

In the figure, 21 is a main body table, 22 is a pallet, and 23 is a pallet guide rail, and the pallet is horizontally circulated in a rectangular manner by a certain conveying means (not shown).

Reference numerals 24 and 24' designate a tool mounting plate having a longitudinal direction parallel to the traveling direction of the pallet 22, and 25° and 25' designate a tool drive shaft having an axial direction parallel to the traveling direction of the pallet 22.

The tool mounting plate 24.24' and the tool drive shaft 25.25' are mounted on a slider 27 that can slide freely on the guide post 26.26'.
．． 27' and connecting rod 28.28'
, levers 29, 29', and cam rollers 30, 30', which are driven up and down by a cam 32.32' on a camshaft 31.

The slider 27°27' is the cam roller 30.30'
In order to prevent the cams from floating up from the cams 32 and 32', they are pressed downward by tension springs 33 and 33'.

The two tool drive shafts 25 and 25' have spiral gears 34 and 34' in their central parts, a spiral gear 35 perpendicular to this, a spline shaft 36, a female spline shaft 37, a lever 38, a link 39, and a Lever 41 with tension spring 40 attached, cam roller 42
The cams 43 on the camshaft 31 perform rocking movements in mutually opposite directions.

FIG. 5 shows a timing diagram of the conveyance of the pallet, the vertical movement of the tool mounting plate, and the rocking movement of the tool drive shaft.

As a tooling example of the apparatus of this embodiment, as shown in FIG. A slide guide 45 parallel to the pallet surface is attached to ', and a slider 47 having a chuck 46 below is reciprocated by a lever 49 on the tool drive shaft 25' via a link 48 to pick up the workpiece on the parts feeder 50. , insert it into a jig on the pallet 22, or attach the bearing 51 to the tool mounting plate 24',
An arm 52 having a chuck 46' at the tip is connected to a lever 53.
, lever 49 on tool drive shaft 25' via link 54.
The work piece on the parts feeder 50' can be picked up and inserted into the jig on the pallet 22 by being oscillated by the parts feeder 50'.

As a modified example of the application of the present invention, as shown in FIG. 6, a tool mounting plate 55 is provided at a sufficient distance from the pallet, and tools are mounted in a cantilevered manner using brackets 56 only where necessary. etc. can be installed inside the horizontal circulation rail, making maintenance of the device easier.

As described above, the general-purpose assembly device of the present invention has a tool mounting plate that moves up and down above a pallet that is linearly transferred, and a tool drive shaft that moves up and down and oscillates together with the tool mounting plate. In particular, there is a spline for each head, which can simplify the configuration of the transfer machine and reduce costs.

Since it is possible to provide movements other than vertical movement using only levers and links without the need for levers or racks and pinions, the structure is simpler than conventional devices of this type.
It is low cost, the movement of each head is not limited to rocking, but can also be linearly slid, so it has a wide range of applications.The moving mass of the tool drive shaft is small, making it suitable for high-speed operation, and it is also suitable for horizontal circulation linear transfer machines. , two sets of tool mounting plates and tool drive shafts facing each straight rail can be easily provided integrally between two parallel rails.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a general-purpose assembly device according to an embodiment of the present invention, FIG. 2 is a front view of main parts of the same device, FIG. The figure is B-B in Figure 2.
5 is a cam timing diagram of the same device,
FIG. 6 is a perspective view of a general-purpose assembly device according to another embodiment of the present invention, FIG. 7 is a perspective view of a conventional general-purpose assembly device, FIG. 8 is a plan view of still another conventional device, and FIG. 9 is the same. FIG. 10 is a front view of the device, and FIG. 10 is a side view of the device. 21...Main table, 22...Pallet, 23...Pallet guide rail, 2424'
......Tool mounting plate, 25, 25'...Tool drive shaft, 26°26'...Guide post, 2
7,27'...Slider, 46...
Chuck, 50...Parts feeder.

Claims (1)

[Claims] 1. A pallet that is intermittently transferred linearly on a straight rail section, a tool mounting plate that has a longitudinal direction parallel to the pallet's traveling direction and that reciprocates in a direction perpendicular to the pallet surface, and a tool mounting plate that is integrated with the tool mounting plate. A tool drive shaft rotatably supported by a slider that reciprocates in the vertical direction and parallel to the advancing direction of the pallet, and a spline that is rotatably driven and has a spline in the vertical direction and is connected to the tool drive shaft via a transmission means. A general-purpose assembly device consisting of a shaft.