JPH0452497Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application) This invention relates to an adhesive device used for adhering a lining to a brake shoe of a drum brake.

(Prior art) A conventional bonding device is, for example, the one shown in FIG.
Loop-shaped pressure band 6 as in No. 53-134832
A lining 63, 6 whose surface is coated with a thermosetting adhesive is placed between the brake shoes 62, 62 having a T-shaped cross section and this pressure band 61, which are arranged inside the pressure band 61.
3, and the two prongs 65 of the left and right tension fittings 64,
It fits into the rib 66 of the brake shoe 62, and the spring 6
7, 67 to tension the tension fittings 64, 64 to the left and right, and attach the ends 62a, 62b of the inner circumference of the brake shoe 62 to the ends 65a, 65b of the two-pronged portion 65, respectively.
The structure is such that the brake shoe 62 and the lining 63 are pressed together by contacting each other.

In this conventional device, as described above, the rib 66 has two
Since the prongs 65 are fitted, in the pre-adhesion work, the ribs 66 are fitted into the two prongs 65 and the linings 63, 6 applied to the outer periphery of the brake shoe 62 are fitted.
3, it is necessary to fit the pressure band 61, and in the removal work after adhesion, kill the springs 67, 67, lift the pressure band 61 and remove it from the brake shoes 62, 62, and then remove the pressure band 61 from the brake shoes 62, 62. You 6
2, 62 from the tension fittings 64, 64 is required, thus requiring a large number of operations.

The brake shoes 62 have inner circumferential ends 62a and 62b connected to ends 65a and 65 of the tension fitting 64, respectively.
5b, the brake shoe 62 can shift in the circumferential direction with respect to the tension fitting 64, and cannot be set at a predetermined position by simply assembling the brake shoe 62.

As described above, the conventional apparatus requires many complicated operations during bonding, and the above operations are performed manually, making automation difficult.

(Problems to be solved by the invention) This invention is a gluing device devised so that manual work in gluing work can be eliminated and automation can be applied.

In other words, in order for the bonding work to be automated, it is necessary to simplify the operations necessary for inserting and removing the lining into the bonding device, and to simplify the heating process after the lining is inserted and the process after bonding is completed. It must be devised so that the transport operation during removal work etc. can be carried out easily.

The radius R and width W of the brake shoe vary depending on its size, but for automation, it is also necessary for the adhesive device to be maintained at a predetermined height regardless of the size. be.

This invention was proposed in response to such a request.

(Means for solving the problem) The structure of this invention to solve the above problem consists of a loop-shaped pressure band 4 and left and right brake shoes 11, 11 located inside the loop-shaped pressure band 4. The tension fittings 2, 2 are biased by springs 3, 3 to expand the linings 19, 19 disposed between them to the left and right.
In the brake shoe adhesion device for crimping brake shoes 11, 11 with
, a shoe holder 8 provided at both ends of each of these base plates 6, 6, and a shoe positioning metal 9. The shoe holder 8 sandwiches the rib 12 of the brake shoe 11. At one circumferential end 12a of this rib 12,
abutting from the outside in the direction of tension by the spring 3;
The shoe positioning fittings 9 are attached to the other circumferential end 12b of the rib 12 without sandwiching the rib 12.
The brake shoe 11 is positioned in the circumferential direction of the pressure band 4, and the adhesive device is supported at a predetermined height on the base plate 6. The skates 10 are provided with skates 10 to

(Function) When the brake shoes 11, 11 are assembled into the adhesive device 1, the shoe receiving metal fitting 8 provided on the base plate 6 comes into contact with one circumferential end 12a of the rib 12 of the brake shoe 11, and the shoe positioning metal fitting 9
engages with the other circumferential end 12b of the rib 12, so the brake shoe 11
The brake shoe 11 is prevented from shifting in the circumferential direction by the shoe positioning fitting 9 and the brake shoe 11 is thereby correctly positioned at a predetermined position without requiring any adjustment operation.

Each circumferential end portion 12a, 12 of the rib 12
b has a structure in which it comes into contact with the shoe receiving fitting 8 and the shoe positioning fitting 9 from the outside in the tension direction by the springs 3, 3 without being pinched by either, so that the brake shoe 11 and the lining before the bonding process are 19, and the removal operation of the brake shoes 11, 11 after adhesion can be easily performed on the pressure band 4 by killing the springs 3, 3 and reducing the distance between the left and right tension fittings 2, 2. The brake shoe 11 can now be moved from the side with one simple operation.

The gluing device 1 is supported at a predetermined height by skates 10, 10, . The operation becomes easier, and the lining 19 and the like are prevented from coming into contact with the conveying device 1 and being damaged during conveyance.

(Example) Next, an example of this invention will be described based on the drawings.

FIG. 1 shows a plan view of the bonding device 1, and FIG. 2 shows a front view thereof.

The illustrated adhesive device 1 has left and right tension fittings 2, 2.
, springs 3, 3 that tension the tension fittings 2, 2 on the left and right, a pressure band 4 surrounding the tension fittings 2, 2, and tension fittings 2, 2.
It is constituted by a safety pin 5 that prevents it from expanding excessively.

The tension fitting 2 has left and right base plates 6, and pins 7, 7 at both ends of each base plate 6.
It is composed of a shoe receiving fitting 8 and a shoe positioning fitting 9 which are removably attached to the base plate 6, and sliding skates 10, 10 for the adhesive device fixed to the lower part of each base plate 6. .

The shoe receiver 8 is shaped to abut against one circumferential end 12a of the rib 12 of the brake shoe 11 from the outside in the direction of tension by the springs 3, 3, without sandwiching the rib 12. .

Moreover, the shoe positioning fitting 9 can be attached to the other circumferential end 12b of the rib 12 without sandwiching the rib 12.
It is provided with a notch 9a having a shape that matches the shape of the circumferential end 12b so as to be engaged from the outside in the tension direction by the springs 3, 3.

Therefore, when the brake shoe 11 and the lining 19 are inserted between the tension fitting 2 and the pressure band 4, the brake shoe 11
2a comes into contact with the end of the shoe receiving fitting 8, and the other circumferential end 12b fits into the notch 9a of the shoe positioning fitting 9, thereby preventing displacement in the circumferential direction.
When installed, it is always correctly positioned with respect to the adhesive device 1.

The skate 10 has an arrangement width A in the front-rear direction (vertical direction in FIG. 1), an overall length B in the left-right direction, and a height to the bottom surface of the pressure band 4.
Each CH is made to have a constant value.

Therefore, for brake shoes 11 of various sizes, skates 10,
10, . . . , the adhesive device 1 is supported in a predetermined state.

That is, even if the width W of the brake shoes 11 varies, the height CH of the skates 10 is always constant. When the device 1 is delivered, the pusher allows the adhesive device 1 to be pushed without mistakes, and the skates 10, 10, . . . smoothly slide the adhesive device 1 during pushing.

A cut groove 13 is provided in the lower part of the base plate 6 to engage with a positioning member of the adhesive device provided in the tensioning device, which will be described later. It is set up.

The pressure band 4 connects the ends of two strips 15, 15 of equal length made of spring steel to a rigid piece 1 made of steel.
6 and 16 are riveted and connected to each other, so that it maintains a roughly elliptical shape in a free state.

Furthermore, elongated holes 17 and 18 for inserting lining positioning fittings, which will be described later, are formed in the strips 15 and 15 of the pressure band 4 near the rigid pieces 16 and 16.

The rigid pieces 16, 16 also have the role of lateral positioning when the adhesive device 1 is set in a tensioning device to be described later.

Reference numeral 19 in FIGS. 1 and 2 indicates the lining to be glued.

Next, the brake shoe 1 inserted into the adhesive device 1
The tensioning device 20 used for positioning the brake shoe 1 and the lining 19 and compressing the spring 3 necessary for the above-mentioned insertion and removal of the brake shoe 11 after completion of adhesion will be described.

FIG. 3 shows a plan view, FIG. 4 shows a plan view, and FIGS. 5 and 6 show a cutaway plan view of the main part and a front view of the main part, respectively.

The left and right press heads 22 and 23 are mounted on the base 21.
A rack 26 provided on one press head 23 is attached to a piston 25 of a cylinder 24 which is slidably engaged to the left and right and fixed to the base 21, and a rack 26 provided on the other press head 22 is attached to the piston 25 of a cylinder 24 fixed to the base 21.
7 and the rack 26 are engaged with a pinion 28 which is supported on the base 21 by a shaft 28a from opposite sides.

Tables 29 and 30 are fitted into the press heads 22 and 23, respectively, so as to be slidable left and right through guide grooves 29a and 30a.
is constituted by a seat 31 having an arcuate shape in plan view, an adhesive device positioning body 32, and a slide portion 33.

The catch seat 31 has a convex portion 31a that contacts the lower surface of the lining 19, a recessed portion 31b that contacts the lower surface of the pressure band 4, and a brake shoe. It has a concave groove 31c that comes into contact with the lower surface of 11.

The adhesive device positioning body 32 is attached to the base plate 6
A convex portion 32a that fits into the cut groove 13, and receiving portions 32b, 32b that contact the lower surface of the base plate 6.
and an adhesive device positioning body 32 for the base plate 6.
The guide portion 32 is composed of guide portions 32c and 32d that are wedge-shaped when viewed from the front to guide the drop into the guide portion 32.
The distance between the base inner sides c and 32d is approximately equal to the thickness of the base plate 6, and when the adhesive device 1 is set, the base plate 6 is easily set in a predetermined position, and in the set state, the guide The base inner side c of the portion 32c and the press head 22,
The adhesive device 1 is positioned at a predetermined position of the tension device 20 by sandwiching the base plate 6 between the end surfaces of the tension device 23 from the left and right sides.

Near the left and right center of the base 21, band positioning bodies 34, 34 are provided, which have grooves 34a, 34a into which the strips 15 of the pressure band 4 can be fitted, and positioning grooves 34b into which the rigid body pieces 16 can be fitted without wobbling in the left and right direction. There is.

Lining positioning fittings 35 and 36 used for positioning the lining 19 on the bonding device 1 are attached to fitting mounting bases 37 and 38 provided so as to be moved back and forth by cylinders and pistons (not shown).

That is, the lining positioning fittings 35 and 36 are provided with tips 35a and 36a that can be inserted into the long holes 17 or 18 of the strip 15 and come into contact with both ends 19a and 19b of the lining 19, and a mounting pin hole 35b in the center. , 36b are provided.

Fitting parts 37a and 38a, which are U-shaped in side view, are provided on the fitting mounting bases 37 and 38, and the fitting parts 35c and 36c of the lining positioning fittings 35 and 36 are connected to the fitting parts 3 and 38, respectively.
7a, 38a, and the fitting parts 37a, 38a
and the mounting pins 3 in the mounting pin holes 35b and 36b, respectively.
The lining positioning fittings 35, 36 are attached to the fitting mounting bases 37, 38 by inserting the fittings 9, 40 therethrough.

The spring guide pins 41, 42 attached to the left and right base plates 6,
6 exhibits a guiding function when they move toward or away from each other.

The bonding device 1 includes left and right pressure bodies 43, 4 that are moved up and down by a solenoid of a pressure machine (not shown).
4, the lining 19 and the upper and lower ends of the pressure band 4 and the brake shoe 11 are pressed together and fixed to the tables 29, 30.

FIG. 7 shows, as a plan view, an example of a layout used for automating the bonding work.

The tensioning device 20 is mounted on a turntable 49 that rotates intermittently in the arrow direction about a rotation shaft 48.
Conveyors 50, 5 are placed on the side of the pressure introduction position _P2 , which is rotated 90 degrees from the lining insertion position _P1 .
1 is provided, and a tunnel type heating device 52 is provided at the end of the conveyor 51.

Pressure introduction position P ₂ and conveyor 50 starting position P ₃
A pressurizer 53 is provided that moves back and forth between the
This pressurizing device 53 includes the pressurizing bodies 43 and 44 and a pin 4 that can be fitted into the pin hole 14 of the base plate 6.
7, and hooks 45 and 46 (which can also be moved vertically) that can be opened and closed left and right.

On the side of the exit of the heating device 52, a conveyor 54,
55 is provided, and a lifter 56 is provided so as to reciprocate between the terminal position P ₄ of the conveyor 55 and the receiving position P ₅ on the turntable 49.
It has a hook (not shown) having the same function as 5 and 46, and this hook is formed to be able to reciprocate by 90 degrees with respect to the vertical line.

Removal position P ₆ on turntable 49 rotated 90° in the arrow direction from receiving position P ₅ and conveyor 57
A removal machine 58 equipped with a magnetic chuck is provided to reciprocate between the two.

Further, a push cylinder 59 is used for lateral movement of the adhesive device 1 between the conveyors 50, 51, etc.

Next, the bonding process procedure will be explained.

Adhesive device 1 placed on tables 29, 30
is positioned in the front-rear direction (width direction of the base 21) by fitting the cut grooves 13 of the left and right base plates 6, 6 into the protrusion 32a of the adhesive device positioning body 32, and the receiving parts 32b, 32b Vertical positioning is performed by the lower surface of the base plate 6 coming into contact with the base plate 6, and the left and right portions of the base plate 6 are sandwiched between the base inner side c of the guide portion 32c and the end surfaces of the press heads 22 and 23, so that the base plate 6 can be positioned horizontally. The pressure band 4 is positioned in the direction (longitudinal direction of the base 21), and the rigid pieces 16, 16 are placed in the positioning grooves 34b of the band positioning bodies 34, 34.
are fitted into the grooves 34a, 34a, respectively, and thereby positioned in the front-rear, left-right, and up-down directions.

With these, the adhesive device 1 can be connected to the tension device 20.
is set at a predetermined position on the tables 29, 30.

Next, when fluid pressure is introduced into the right chamber 24a of the cylinder 24 and the piston 25 is moved to the left extreme position shown in FIGS. 3 and 4, the right rack 26 moves to the left. Pinion 28 meshing with
rotates clockwise and the rack 27 on the left moves to the right, so
The base plates 6, 6 together with the left and right press heads 22, 23 are drawn together and the springs 3, 3 are killed.

Therefore, brake shoe 11 and lining 19
, shoe holder 8 and shoe positioning fitting 9
and the pressure band 4.

Next, when the brackets 37 and 38 to which the shoe positioning brackets 35 and 36 are attached are moved toward the center of the tables 29 and 30 by actuating the piston, the holes 17 and 18 of the strip 15 are visible. The tip portions 35a, 35a and 36a, 36a abut against both ends 19a, 19b of the lining 19, thereby positioning the lining 19 with respect to the pressure band 4 in the front-rear direction and the left-right direction.

When the positioning of the lining 19 is completed, the piston retreats, the shoe positioning fittings 35 and 36 are separated from the pressure band 4, and the turntable 49 rotates 90 degrees in the direction of the arrow.

Then, the pressurizing bodies 43, 44 of the pressurizing machine 53 descend toward the bonding device 1, and the linings 19, 19, the pressurizing band 4, and the brake shoes 11, 11
are sandwiched between the pressurizing bodies 43 and 44 and the tables 29 and 30 from above and below.

When the fluid pressure in the right chamber 24a of the cylinder 24 is discharged in this state, the right press head 23, the rack 26 and the piston 25 are moved by the restoring force of the springs 3, 3.
moves to the right, the pinion 28 rotates to the left, and the left rack 27 and left press head 22 move to the left by the same amount as the above-mentioned rightward movement distance.

With this horizontal movement, the shoe receiving fitting 8 strongly contacts one end 12a of the brake shoe 11, and the notch 9a of the shoe positioning fitting 9 strongly contacts the other end 12b. is set in a predetermined position in close contact with the lining 19.

After the setting is completed, move the pressurizing bodies 43 and 44 upward,
Lower the left and right hooks 45 and 46 of the pressurizing machine 53,
Open the hooks 45 and 46 and remove the base plates 6 and 6.
After inserting the pins 47, 47 of the hooks 45, 46 into the pin holes 14, 14 of the hooks 45, 46,
By moving the adhesive device 1 up and down, the tension device 2
0, move the pressure machine 53 to the conveyor 50, and transfer the adhesive device 1 to the conveyor 50.

When being transported by the conveyor 50, the skates 10, 10, . . . support the adhesive device 1 in a stable posture.

At the end of the conveyor 50, the adhesive device 1 is transferred to the next conveyor 51 by the operation of the pusher 59, and this transfer operation is carried out smoothly with little resistance due to the sliding by the skates 10, 10, . . . .

For each brake shoe 11 of different size, the height CH of the skate 10
is formed uniformly, so that the action of the pusher 59 always acts on the adhesive device 1 at a suitable position.

The adhesive device 1 is transferred from the conveyor 51 to the conveyor 60 of the heating device 52 by the pusher 59,
The adhesive on the surface of the lining 19 is cured by heating for a predetermined period of time, and the adhesion between the brake shoe 11 and the lining 19 is completed.

The bonding device 1 that has come out of the heating device 52 is transferred by the conveyors 54 and 55, transferred to the receiving position _P5 on the turntable 49 by the lifter 50, and set on the tensioning device 20 again.

Removal position where turntable 49 is rotated 90°
At _P6 , fluid pressure is introduced into the right chamber 24a of the cylinder 24, and the left and right press heads 22, 23 and base plates 6, 6 are drawn together, and the springs 3,
3 is removed, the shoe receiving fitting 8 and the shoe positioning fitting 9 are attached to the ends 12a, 12 of the brake shoe 11.
move away from b.

The magnetic chuck of the removing machine 58 descends and attracts the brake shoes 11, 11, and the adhesive device 1
The brake shoes 11, 11 that have been removed are transferred to the conveyor 57.

The product is completed from the conveyor 57 through a stamping machine (not shown) and a lining polishing machine.

As mentioned above, the operation process in bonding work is
Only the operation of inserting the brake shoe 11 and the lining 19 into the bonding device 1 before bonding is done manually, and all other operations can be automated.

The above-described layout can be modified into various other layouts in addition to the illustrated example.

(Effect of the invention) As described above, the brake shoe adhesion device according to this invention includes the brake shoe 11 and the adhesion device 1.
11 is assembled, the shoe holder 8 provided on the base plate 6 is attached to the rib 12 of the brake shoe 11.
The shoe positioning fitting 9 contacts one circumferential end 12 a of the rib 12 , and the shoe positioning fitting 9 contacts the other circumferential end 12 a of the rib 12 .
b, the brake shoe 11 is prevented from shifting in the circumferential direction by the shoe receiving fitting 8 and the shoe positioning fitting 9, and as a result, the brake shoe 11 can be moved without any adjustment operation. 1
1 was now correctly positioned in the predetermined position.

Each circumferential end portion 12a, 12 of the rib 12
b has a structure in which it is not pinched by either the shoe receiving fitting 8 or the shoe positioning fitting 9 and comes into contact with it from the outside in the tension direction by the springs 3, 3, so that the brake shoe 11 and the lining 19 before the bonding process are The assembly operation and the removal operation of the brake shoes 11, 11 after adhesion can be done easily with respect to the pressure band 4 by eliminating the springs 3, 3 and reducing the distance between the left and right tension fittings 2, 2. All it takes is one simple action of moving the brake shoe 11 from the side.

The gluing device 1 is supported at a predetermined height by skates 10, 10, . It is easy to operate and suitable for automated lines, and
This eliminates the problem of the lining 19 and the like coming into contact with the conveying device 1 during conveyance and being damaged. Skates 1 provided on the left and right base plates 6, 6
Since the bonding device 1 is supported by 0, 10, . The conveyance operation was carried out smoothly as it was supported by the skates 10, 10, . . ., making it suitable for automated lines.

[Brief explanation of the drawing]

Figures 1 to 7 show an embodiment of this invention,
Fig. 1 is a plan view of the adhesive device, Fig. 2 is a front view of Fig. 1, Fig. 3 is a plan view of the adhesive device set in the tensioning device,
Figure 4 is a front view of Figure 3, Figure 5 is a vertical sectional plan view of the main part of the tensioning device, Figure 6 is a vertical sectional front view of the main part of Figure 5, and Figure 7 is a schematic plan view of the automatic work line. FIG. 8 is a plan view of a conventional bonding device. 1...Adhesive device, 2...Tension fittings, 3...Spring,
4...Pressure band, 5...Safety pin, 6...Base plate, 7, 47...Pin, 8...Shoe receiver, 9...Shoe positioning bracket, 10...Skate, 11...Brake shoe , 12...rib,
12a, 12b... Circumferential end, 13... Cutting groove, 14... Pin hole, 15... Strip, 16... Rigid piece, 17, 18... Elongated hole, 19... Lining, 19a , 19b... both ends, 20... tension device, 21... base, 22, 23... press head, 24... cylinder, 25... piston, 2
6, 27...Rack, 28...Pinion, 28a
... Axis, 29, 30 ... Table, 29a, 30
a...Guide groove, 31...Socket, 31a, 32a
...Convex portion, 31b...Concave portion, 31c...Concave groove, 3
2... Adhesive device positioning fitting, 32b... Receiving part,
32c, 32d...Guide part, 33...Slide part, 34...Hand positioning body, 34a...Groove,
34b...Positioning groove, 35, 36...Lining positioning fitting, 35a, 36a...Tip part, 3
5b, 36b...Mounting pin hole, 35c, 36c...
...Mounting part, 37, 38...Bracket mounting base, 37a,
38a... Fitting part, 39, 40... Mounting pin, 4
1, 42... Spring guide pin, 43, 44... Pressure body, 45, 46... Hook, 48... Rotating shaft,
49... Turntable, 50, 51, 54, 5
5, 57, 60... conveyor, 52... heating device, 53... pressure machine, 56... lifter, 58...
Removal machine, 59... Push cylinder, P ₁ ... Lining insertion position, P ₂ ... Pressure introduction position, P ₃ ...
...starting position, P ₄ ...end position, P ₅ ...receiving position,
P ₆ ...Removal position.

Claims (1)

[Scope of Claim for Utility Model Registration] A lining placed between a loop-shaped pressure band and left and right brake shoes positioned inside the band is biased by a spring so as to expand left and right. In an adhesive device for a brake shoe that is crimped onto a brake shoe using tension fittings, the tension fittings are provided on left and right base plates, which are central members that receive the spring force of a spring, and on both ends of each of these base plates. The shoe holder is configured by a shoe holder and a shoe positioning metal fitting, and the shoe holder is provided with a brake shoe at one circumferential end of the rib without sandwiching the rib of the brake shoe.
The shoe positioning metal fittings are brought into contact from the outside in the tension direction by the spring, and the shoe positioning metal fittings are shaped so as to engage with the other circumferential end of the rib from the outside in the tension direction by the spring without pinching the rib. A brake shoe bonding device, characterized in that the brake shoe is positioned in the circumferential direction of the pressure band, and a skate is provided on the base plate to support the bonding device at a predetermined height.