JPH0790692A - Hanger device for surface treatment - Google Patents

Abstract

PURPOSE:To prevent the immersion of the inside parts of the blind holes of works into a treating liquid for surface treatment by spreading the treating liquid over the entire part of the inside parts of the blind holes of the works. CONSTITUTION:Hanging arms 7a of hangers 7 are projectingly provided with hooks 8. These hooks 8 are inserted into the pin holes of caliper brackets to hang down these caliper brackets. Pipe passages are formed within the hooks 8 and hanging arms 7a and projecting arms 7c of the hanging arms 7. A transporting body 6 is projectingly provided with connecting brackets 11. Suction and discharge pipelines 24 are composed of connecting passages of these connecting brackets 11, intermediate hoses 15 and pipe passages. Connecting units of air suction and discharge means are attachably and detachably connected to joint blocks 11b of the connecting brackets 11. The air of pin holes 5a are sucked via the air suction and discharge pipelines 24 by air suction and discharge means 10 in the case of introducing the treating liquid A into the pin holes. The air is sent into the bottoms of the pin holes via the air suction and discharge pipelines 24 from the air suction and discharge means 10 if the introduction of the treating liquid A into the pin holes is inconvenient.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hanger device for surface treatment, in which a hanger is moved up and down to immerse a work in a treatment liquid in a liquid tank, and the work is subjected to surface treatment such as plating and cleaning. The present invention relates to a hanger device for surface treatment having a structure capable of selectively performing surface treatment inside a bottomed hole formed in a work.

[0002]

2. Description of the Related Art When manufacturing caliper bodies and caliper brackets used for automobile disc brakes, these workpieces after molding cut holes such as bottom holes such as cylinder holes and pin holes. After processing, various surface treatments such as water washing, ultrasonic washing, degreasing and plating are performed.

Conventionally, for this surface treatment, a hanger device for surface treatment is used which is provided with a carrier for laterally moving above a plurality of liquid tanks along the liquid tank. The work moves up and down on the carrier. Surface treatment is performed by supporting a hanger provided with a bottomed hole in a substantially horizontal state and moving the hanger up and down to immerse the hanger in the treatment liquid in each liquid tank.

The work which has been subjected to the surface treatment is transferred to a drying process and dried. However, since the treatment liquid is likely to remain inside the bottomed holes, an air blow is performed to remove the excess treatment liquid. .

[0005]

However, in the above-mentioned one, since the work is immersed in the treatment liquid with the bottomed hole in a substantially horizontal state, air remains at the bottom of the bottomed hole and the treatment liquid bottoms. Sometimes it does not go all the way to the hole. Therefore, even when the entire bottomed hole has to be immersed in the treatment liquid, the treatment liquid cannot be sufficiently moved to the bottom of the bottomed hole,
It was a cause of rusting.

Further, in the case where it is inconvenient to immerse the bottomed hole in the processing liquid, for example, when the caliper bracket having the pin hole for the sliding pin is plated, the inner diameter of the pin hole is reduced by the plating layer. If so, the slidability of the sliding pin is reduced, so it is necessary to prevent the pin hole from immersing in the processing liquid.However, in the hanger device having the above-described configuration, air in the bottomed hole of the work is This causes a problem that parts other than the remaining bottom are always immersed in the processing liquid.

Further, by the drying process after the surface treatment,
The inside of the bottomed hole had to be blown with air, which required a great deal of time.

Therefore, according to the present invention, when the surface treatment is performed on the entire work including the bottomed holes, the treatment liquid is sufficiently spread to the entire inside of the bottomed holes to allow the surface treatment inside the bottomed holes. When the surface treatment is not necessary for the bottomed holes, it is possible to reliably prevent the treatment liquid from entering the inside of the bottomed holes and to shorten the time required for drying after the surface treatment. An object is to provide a hanger device for surface treatment.

[0009]

In order to achieve the above object, in the first aspect of the invention, a hanger is provided so as to be movable up and down on a carrier which moves laterally above a plurality of liquid tanks. A hanger supporting a work having a bottomed hole, immersing the work in the treatment liquid in the liquid tank by the vertical movement of the hanger, and performing a surface treatment of the work in a hanger apparatus for surface treatment, wherein the hanger and the An intake / exhaust pipe line is arranged over the carrier, and one end of the intake / exhaust pipe line arranged on the hanger side is opened upward, and the bottomed hole is directed downward to support the work on the hanger. At this time, one end of the intake / exhaust pipe line is inserted into the bottomed hole, and the other end of the intake / exhaust pipe line arranged on the carrier side is detachably connected to the intake / exhaust means.

According to the second aspect of the invention, a hanger is provided so as to be vertically movable on a carrier which moves laterally above a plurality of liquid tanks, and a work having a bottomed hole is supported on the hanger. In the hanger device for surface treatment, in which the work is immersed in the treatment liquid in the liquid tank by the vertical movement of the hanger to perform the surface treatment of the work, an intake / exhaust pipe line is arranged between the hanger and the carrier. A hook for supporting the bottomed hole of the work downward is projected on the hanger, and one end of the intake / exhaust pipe line arranged on the hanger side is opened at the tip of the hook, and the hook is provided on the carrier side. It is characterized in that the other end of the arranged intake / exhaust pipe line is detachably connected to the intake / exhaust means.

[0011]

In the intake / exhaust pipe line of the hanger device, the other end on the carrier side is connected to the intake / exhaust means when stopped above a desired liquid tank. Further, when the surface treatment of the work is completed in the liquid tank and the hanger device moves to the upper side of the liquid tank in the next step, the other end on the carrier side is separated from the intake / exhaust means.

When the entire surface of the work including the bottomed holes is subjected to surface treatment, the air at the bottom of the bottomed holes is sucked by the suction / exhaust means through the intake / exhaust pipe lines to bring the inside of the bottomed holes into a negative pressure state. By this, the processing liquid is made to flow into the bottomed holes.

When it is not necessary to introduce the treatment liquid into the bottomed hole, air is blown from the intake / exhaust means to the bottomed hole to fill the entire inside of the bottomed hole with air. To prevent the processing solution from entering.

After the surface treatment, the air is blown into the bottomed hole while the work is supported by the hanger device by blowing air into the bottomed hole by using the intake and exhaust means. , The work is transferred to the drying process.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a surface treatment hanger device for surface-treating a caliper bracket of a vehicle disc brake will be described with reference to the drawings. A pair of upper and lower guide rails 2 and 3 are provided endlessly along the liquid tanks 1, 1 ... Above the plurality of liquid tanks 1, 1 ... Arranged in one direction. According to the above guide, the plurality of surface treatment hanger devices 4 are intermittently moved to the upper positions of the respective liquid tanks 1.
Each of the liquid tanks 1 contains various plating liquids, water, and treatment liquids A having different properties such as hot water. The caliper bracket 5 as the work of this embodiment is attached to the surface treatment hanger described above. The caliper bracket 5 is sequentially transferred to each liquid tank 1 by the device 4, and the caliper bracket 5 is dipped in the processing liquid A, and various surface treatments such as plating, degreasing, washing with water, washing with hot water, ultrasonic washing and the like are performed.

In the hanger device 4 for surface treatment, a hanger 7 is supported by a carrier 6 which moves laterally between the guide rails 2 and 3 so as to be vertically movable, and the hanger 7 is provided in an inverted U shape. On the hanging arm 7a, a pair of hooks 8 and 8 are provided at the same position on the left and right so as to project vertically in three steps, and one surface treatment hanger device 4 is provided with a caliper bracket 5 which is a work of this embodiment. , Each of which can be hung up by three.

The carrier 6 is a vertically long frame arranged between the guide rails 2 and 3 and is a vertical frame 6 of the carrier 6.
The a and 6a are formed by facing the channel steel material inwardly, and the lifting body 7 of the hanger 7 is provided between the frames 6a and 6a.
It accommodates b and guides the vertical movement of the lifting and lowering body 7b. At the bottom of the carrier 6, the lower guide rail 3
Rollers 9, 9 are provided to roll over, and a connection unit 1 for intake / exhaust means 10, which will be described later, is provided on the upper rear surface of the carrier 6.
A connection bracket 11 for detachably connecting 6 is provided in a protruding manner.

The hanger 7 includes the lifting body 7b, the protruding arm 7c protruding forward from the lifting body 7b, and the protruding arm 7b.
It is composed of the above-mentioned hanging arm 7a which is hung vertically from C in an inverted U shape, and rollers 12, 12 for rolling the vertical frames 6a, 6a of the carrier 6 are provided on both sides of the lifting body 7b. It is provided. A pipe material having a slightly larger diameter is used for the hanging arm 7a and the protruding arm 7c, and the lower end of the hanging arm 7a and the proximal end side of the protruding arm 7c are closed so that the inside of these arms 7a, 7c is closed. Are in communication. Further, each hook 8 is a pipe material having a small diameter bent in a substantially L shape and provided on the hanging arm 7a so as to project upward, and the upper end of the hook 8 is opened to the outside.
The base end is communicated with the inside of the hanging arm 7a, and the inside where the hook 8 and the hanging arm 7a and the protruding arm 7c are continuous serves as a pipe passage 13.

The connecting bracket 11 is a pair of mounting arms 11 projecting from the vertical frames 6a of the carrier 6.
The joint block 11b is held by a and 11a,
A connection passage 14 is formed through the block 11b so as to open to the side surface and one side surface of the carrier. Connection passage 14
The opening on the side of the carrier 6 is connected to the opening on the side of the projecting arm 7c of the pipe passage 13 by the intermediate hose 15, and the intermediate hose 15 and both arms 7a and 7c of the hanger 7 forming the pipe passage 13 are connected. The hook 8 and the joint block 11b of the carrier 6 including the connection passage 14 constitute the intake / exhaust pipe line 24, and the connection unit 16 of the intake / exhaust means 10 is provided in the opening on one side of the connection passage 14. Is detachably connected.

The intermediate portion of the intermediate hose 15 is provided with a stretchable portion 15a in which a spiral is stretched in a vertical direction, and when the hanger 7 moves the carrier 6 up and down, the stretchable portion 1 is provided.
5a expands or contracts to accommodate the intermediate hose 15,
The connection state between the connection passage 14 and the pipe passage 13 can be maintained well.

The connecting unit 16 of the intake / exhaust means 10 is on the opposite side of the liquid tank 1 with the guide rails 2 and 3 interposed therebetween, and has substantially the same height as the connecting bracket 11 of the surface treatment hanger device 4.
One is provided for each liquid tank 1. To the first air cylinder 17 of the connection unit 16, upper and lower connecting plates 18, 18 are connected to the tip of the push rod 17a, and a pair of holding arms 19 are provided at both ends of the connecting plates 18, 18.
a and 19b are pivotally supported by a support shaft 20, respectively, and the connecting plates 18 and 18 and the holding arms 19a and 19b advance and retreat toward the liquid tank by the expansion and contraction of the push rod 17a.

A second air cylinder 21 is provided between the holding arms 19a and 19b, and both holding arms 19a and 19b are provided.
b is rotated in the opposite direction with the support shaft 20 as a fulcrum by the expansion and contraction of the push rod 21a of the second air cylinder 21.
The one holding arm 19a has an elastic seal 2 on the inner surface of the tip.
2 is attached, and an air hose 23 connected to an intake / exhaust pump (not shown) of the intake / exhaust means 10 is also connected to the outer surface of the distal end. The air hose 23 passes through the inside of the holding arm 19a and the elastic seal 22, and the elastic seal 22 Communicates with the outer surface of.

The above-mentioned connecting unit 16 is used when the surface treatment hanger device 4 is moving, that is, the surface treatment hanger device 4 is moved.
In the standby state before being connected to the first air cylinder 17,
The push rod 17a is located at the retreat source pulled in the direction opposite to the liquid tank, allows the surface treatment hanger device 4 to move, and the tip ends of both holding arms 19a and 19b are imaginary in FIG. Expanded as shown by the line.

When the hanger device 4 for surface treatment moves to the liquid tank 1 and stops, the connection unit 16 is pushed out in the liquid tank direction by the push of the push rod 17a, and also the push rod 21a of the second air cylinder 21. The holding arms 9a and 9b are rotated inward by the holding arms 9a and 9b.
The both ends of the joint block 11b of the connection bracket 11 are clamped by the tip of the (2) (solid line position in FIG. 4). The elastic seal 22 of the holding arm 19a is aligned with the connection passage 14 opening to one side surface of the joint block 11b, and the air hose 23 of the intake / exhaust means 10 is connected to the intake / exhaust conduit 24.

The surface treatment of the caliper bracket 5 is completed in the liquid tank 1, and the surface treatment hanger device 4 is
When moving to the liquid tank 1 of the next process, the connection unit 1
6 is operated in the reverse of the connection described above and the connection bracket 11
And disconnect it from the machine and place it in the predetermined retract limit before operation.

The caliper bracket 5 that has been molded
Has a bottomed pin hole 5a (one of which is not shown) formed at the same pitch as the side-by-side hooks 8 and 8. The caliper bracket 5 has the pin hole 5a with its opening facing downward. The holes 5a are inserted into the hooks 8 and are supported.
The insertion amount of the hook 8 is regulated by the bent portion abutting the opening of the pin hole 5a, and the upper end of the hook 8 and the bottom wall of the pin hole 5a are separated from each other.

The present embodiment is constructed as described above, and the surface treatment hanger device 4 supports the caliper bracket 5 on the hooks 8 of the hanger 7 and laterally moves the carrier 6 to obtain a desired result. Stop on the liquid tank 1. Next, the connection unit 16 is actuated toward the liquid tank, and the holding arms 19a and 19b are moved.
At the end of the joint block 1 of the connection bracket 11
Hanger device 4 for surface treatment by clamping both sides of 1b
The air hose 23 of the intake / exhaust means 10 is connected to the intake / exhaust pipe line 24 of
Connect. Then, the hanger 7 is lowered and the caliper bracket 5 is immersed in the treatment liquid A in the liquid tank 1.

Here, the treatment liquid A is a cleaning liquid such as water or hot water, and the treatment liquid A is introduced into the pin hole 5a,
When cleaning the pin hole 5a, the intake / exhaust means 10 is operated to suck air, and the air remaining at the bottom of the pin hole 5a is sucked from the upper end of the hook 8 through the intake / exhaust pipe line 24 and the air hose 23. The suction causes the inside of the pin hole 5a to be in a negative pressure state, the liquid level of the processing liquid A in the bottomed hole 5a rises, and the processing liquid A reaches the entire inner surface of the pin hole 5a.

On the other hand, the above-mentioned treatment liquid A is a treatment liquid having a high acidity such as zinc plating, acid emulsion, chromate, etc., for performing treatment such as plating on the surface of the caliper bracket 5 excluding the pin holes 5a. If the liquid A is not properly fed into the pin hole 5a, the intake / exhaust means 10 is operated to exhaust, and air is sent from the upper end of the hook 8 to the bottom of the pin hole 5a through the intake / exhaust pipe line 24 and the air hose 23. The air blown into the pin hole 5a fills the entire inside of the pin hole 5a and prevents the treatment liquid A from entering.

Further, after performing the above-mentioned surface treatment,
When the caliper bracket 5 is lifted from the surface of the processing liquid A, the intake / exhaust means 10 is operated to exhaust air to blow air into the pin holes 5a, whereby the drying time can be shortened.

In the above embodiment, the suspension arm 7 of the hanger 7 is attached to the intake / exhaust pipe line 24 of the surface treatment hanger device 4.
Although the inside of the a, the protruding arm 7c, and the hook 8 is used, the present invention may provide a dedicated intake / exhaust pipe line separately. Further, the present invention can be widely applied to the surface treatment of various works having a bottomed hole such as a caliper body of a vehicle disc brake having a cylinder hole.

[0032]

As described above, according to the present invention, when the treatment liquid is required to be introduced into the bottomed hole, the residual air at the bottom of the bottomed hole is sucked in and the inside of the bottomed hole is sucked. Since the treatment liquid can be spread over the entire surface, the surface treatment inside the bottomed hole can be uniformly performed over the entire surface, and rust can be effectively prevented.

When it is not necessary to introduce the treatment liquid into the bottomed hole, air is blown into the bottomed hole to fill the inside of the bottomed hole with air to prevent the treatment liquid from entering. ,
Since it is not necessary to change the inner diameter of the bottomed hole, the dimensional accuracy in the bottomed hole can be ensured.

Furthermore, by blowing air into the bottomed hole after the surface treatment, air can be blown into the bottomed hole even when the work is mounted on the hanger, so that the drying process time can be shortened. You can

[Brief description of drawings]

FIG. 1 is a perspective view of a hanger device for surface treatment showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of essential parts showing a state in which a caliper bracket is supported by a surface treatment hanger device showing an embodiment of the present invention.

FIG. 3 is a cross-sectional view of essential parts showing a state in which the hanger device for surface treatment of FIG. 2 is immersed in a treatment liquid.

FIG. 4 is a plan view showing a state in which a connection unit for intake / exhaust means is connected to a connection bracket of a hanger for surface treatment showing an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Liquid tank 2, 3 ... Guide rail 4 ... Surface treatment hanger device 5 ... Work caliper bracket 5a ... Bottom hole pin hole 6 ... Conveyor which moves laterally between guide rails 2 and 3 6a ... Vertical frame 7 of carrier 6 ... Hanger 7a for vertically moving carrier 6 ... Suspending arm 7b ... Lifting body 7c ... Projecting arm 8 ... Hook inserted into bottomed hole 5a of caliper bracket 5 ... Intake / exhaust means 11 ... Connection bracket 11b of the surface treatment hanger device 4 ... Joint block 13 ... Pipe passage formed by the hanging arm 7a and protruding arm 7c of the hanger 7 and the inside of the hook 8 ... Penetrated in the joint block 11b Connection passage 15 ... Intermediate hose 16 ... Connection unit 19a, 19b of the intake / exhaust means 10 ... Holding arm 24 of the connection unit 16 ... Intake / exhaust conduit 22 ... Ammunition Process liquid reserved in the seal 23 ... air hose A ... liquid tank 1

Claims (2)

[Claims] 1. A hanger capable of moving up and down is provided on a carrier that moves laterally above a plurality of liquid tanks along the liquid tanks, and a work having a bottomed hole is supported on the hanger, and the work is supported by the hanger. By immersing in the treatment liquid in the liquid tank by the vertical movement of
In a surface treatment hanger device for performing a surface treatment of a work, an intake / exhaust pipe line is disposed over the hanger and the carrier, and one end of the intake / exhaust pipe line on the hanger side is opened upward, When the work is supported on the hanger with the bottomed hole facing downward, one end of the intake / exhaust line is inserted into the bottomed hole, and the other end of the intake / exhaust line on the carrier side is attached to / detached from the intake / exhaust means. A hanger device for surface treatment characterized by being connected as much as possible. 2. A hanger capable of moving up and down is provided on a carrier which moves laterally above a plurality of liquid tanks along the liquid tanks, and a work having a bottomed hole is supported on the hanger, and the work is supported by the hanger. By immersing in the treatment liquid in the liquid tank by the vertical movement of
In a hanger device for surface treatment of a work, an intake / exhaust pipe line is arranged over the hanger and the carrier, and a hook for supporting a bottomed hole of the work downward is projected on the hanger. A surface of the hook, wherein one end of the intake / exhaust line on the hanger side is opened at the tip of the hook, and the other end of the intake / exhaust line on the carrier side is detachably connected to the intake / exhaust means. Hanger device for processing.