JPS5811480Y2 - Rubber boots automatic assembly device - Google Patents

Description

[Detailed description of the invention] In order to prevent the intrusion of muddy water, dust, etc. thrown up or kicked up by the wheels, and to avoid collisions with flying pebbles, etc., unsprung components of vehicles, especially automobiles, are equipped with
Various types of rubber boots are installed.

This invention relates to an automatic assembling machine for such rubber boots, and the rubber boots to which this invention is applied in particular have a pair of flanges AI and A2 on the upper part, as shown by reference numeral A in Fig. 1. , is a hollow cylindrical body having a lip portion A3 etc. at the lower part, and is of a type that is inserted into the member to be mounted B using the pair of flanges AI and A2.

Therefore, during assembly work, it is necessary to use a flange A that has a larger outer diameter than the through hole drilled in the member B.
Because at least one of I and A2 requires a flange to be inserted in order to be able to be assembled, it is difficult to assemble.
The current situation is that automation is not working as expected.

In FIG. 1, C indicates a movable or fixed shaft, and D indicates a bearing metal.

The present invention aims to provide an automatic assembly device that accurately and reliably loads the above-mentioned flanged rubber boots.
The following description will be made based on the embodiments shown in FIG. 2 and thereafter.

FIG. 2 is an overall view showing a schematic structure of the present invention, in which a member B to be mounted, indicated by a chain double-dashed line, is firmly held by a jig or the like (not shown).

The rubber boot A, which is inserted through a mounting hole B1 drilled in the mounting member B and loaded in a manner described later, is placed on a support base 2 that moves up and down by a cylinder 1 installed upward, and is mounted on a flange on the lower side. A2 is supplied in a locked state.

Further, the two bars 4 and 5 that are raised and lowered together by another cylinder 3 installed downward are connected to the cylinder 1.
and a plurality of grooves 6' disposed on the extension of the central axis of the rubber boot A, and at the tip of one bar 5.
A chuck 6 having an inclined surface 6'' and the like is fixed.

This chuck 6 is in the state shown in the second figure.
Although the rubber boot is fitted into the collar 7 which is spring-supported via the ball 8 and the compression spring 9' on the opening circle of the rubber boot, in the free state the tip opening diameter is as shown in FIG. It is formed to expand somewhat larger than the outer diameter dimension of the flange A1 at A.

Ball 8 provided for spring supporting the collar 7
, the block containing the spring 9', etc. is integrally connected to the shaft 4, and the outer diameter of the collar 7 is set larger than the diameter of the mounting hole B1, but the inner diameter is larger than the diameter of the mounting hole B1. d is set slightly smaller than the hole diameter of the mounting hole B1.

Further, on the axis of the bar 5, a stop block 9 is attached to the lower surface of the fixed bracket 10, and the stop block 9 is attached to the lower surface of the fixed bracket 10.
The thrust of cylinder 1 is set to be larger than the thrust of cylinder 3.

FIG. 2 shows that both cylinders 1 and 3 are in their respective contracted standby positions, the rubber boot A has been manually or automatically loaded onto the support base 2, and the assembly work is about to begin.

When the cylinder 3 first begins to extend from the state shown in the second figure, the bars 4, 5, the chuck 6, the collar 7, etc. move down as one.

During this descending process, when the lower end surface of the collar 7 comes into contact with the member B, the descent of the collar 8 is stopped, but the bars 4, 5
bar 5 further descends against the holding force of ball 8.
The chuck 6 attached to the tip of the
Once it passes through, it will gradually begin to expand.

When the chuck 6 reaches an unrestricted state, that is, a state expanded to a size larger than the outer diameter of the flange A1 as shown in the third figure, the extension movement of the cylinder 3 stops.

Cylinder 1 operates based on a command to stop cylinder 3.

When the lifting amount of the support base 2 reaches S due to the extension movement of the cylinder 1, the stop surface 2' of the support base 2 comes into contact with the lower end surface of the bar 4, and the upper part of the rubber boot A touches the tip of the chuck 6. It is set to face into the opening.

(See Figure 4) When the cylinder 1 further extends from the state shown in Figure 4, the support base 2 rises against the thrust of the cylinder 3, so as the bar 4 rises, the chuck 6 and collar 7 also move together. and will be lifted up.

FIG. 5 shows the state when the cylinder 1 has extended its specified stroke and stopped.

The state shown in FIG. 5 is the mounting hole B1 of the mounted member B and the chuck 6.
The upper part of the inclined surface 6'' in the chuck 6
Forcibly shorten the tip of flange A of rubber boot A.
This shows a state in which one part is securely gripped.

Since the cylinder 3 starts to retract in response to the stop signal from the cylinder 1, the chuck 6 bends the rubber boot A until its lower end passes through the mounting hole B1 and rises in the gripped bond state, and the moment it passes through. That is, rubber boots A
When the flange A1 of passes through the mounting hole B1, the chuck 6
The restraint of the rubber boot A is released and the rubber boot A is instantly expanded, and the rubber boot A is automatically assembled to the member B to be attached, as shown in FIG.

When the cylinder 3 reduces its full stroke and stops, the chuck 6 is housed in the collar 7.

Incidentally, at this time, the cylinder 1 is also reduced in size. On the other hand, the member B to be installed into the rubber boot A through the above-mentioned process is sent to the next process via a conveyance device (not shown), etc., and the unloaded member B is newly supplied by automatic or manual operation. If the rubber boots A are supplied to the support base 2, the second
After returning to the state shown in the figure, the above-described operations are repeated.

According to the present invention, when assembling a rubber boot with a flange diameter larger than the mounting hole, the rubber boot is provided with a split groove and an inclined surface, and the flange diameter of the rubber boot is expanded to a larger extent than the outer diameter of the rubber boot in normal conditions. A simple device that supports a chuck, a collar, a support stand, etc. allows automatic assembly to be performed quickly and reliably, greatly contributing to labor savings.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing the actual usage of a rubber boot, which is an assembly part of the automatic assembly machine according to the present invention shown in Fig. 2 and subsequent figures; FIGS. 3 to 6 are front views showing the general structure of the entire apparatus, FIGS. 3 to 6 are front views of main parts showing operating conditions, and FIG. 7 is a view showing a chuck used in the automatic assembly apparatus of the present invention. A...Rubber boots, AI, A2...
Flange, B... Mounted member, B1...
・Mounting hole, 1...Cylinder, 2...
Support stand, 3... Cylinder, 4, 5...
・Bar 6... Chuck, 6'... Division groove, 6''... Inclined surface, 7... Collar, 8
...Ball, 9'...Spring, d
...Inner diameter dimension.

Claims (1)

[Scope of utility model registration request] A support base 2 that locks a lower flange A2 of a rubber boot A having at least a common pair of flanges AI and A2 is connected to a cylinder 1, and a bar 4 disposed on an extension of the central axis of this cylinder 1 and the above-mentioned A bar 5 disposed on an extension of the central axis of the rubber boot A is connected to a cylinder 3 whose thrust is set smaller than the thrust of the cylinder 1, and the lower end of one bar 5 has a plurality of grooves 6' and an inclined surface 6. It fixes a chuck 6 which expands somewhat larger than the outside diameter of the flange A1 in a free state, and also fixes a ball 8 and a spring 9' built in a block fixed to another bar 5. The collar 7, which is supported by a spring, is placed on the open base circle of the chuck 6, and the inner diameter d of the collar 7 is slightly smaller than the dimension of the mounting hole B1 drilled in the mounting member B fixed by a jig or the like. By setting the cylinders 3 and 1 to be small, the chuck 6 is
An automatic rubber boot assembling device characterized in that the rubber boot A is automatically assembled onto a mounting member B by gripping the upper flange A1.