JP2706662B2 - Riveting device for fixing brake shoe liner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rivet caulking device for fixing a liner to a brake shoe, and when a rivet with a flange for fixing a liner to one surface of a brake shoe is caulked, the rivet is set laterally. The present invention relates to a rivet setting device for fixing a brake shoe liner to a liner, wherein a rivet is fed into a counterbore hole of a brake shoe and tightened by reliably feeding the rivet into a counterbore hole of the brake shoe.

[0002]

2. Description of the Related Art Conventionally, as a device for caulking a rivet with a flange for fixing a liner to one surface of a brake shoe, there is a so-called vertical type device.

In this device, a mounting table for mounting a brake shoe is formed, and a caulking body is disposed at a substantially center of the mounting table so as to be able to protrude and retract from below, while a caulking body is provided above the caulking bar. Is provided with a rivet feeder which feeds a rivet sent from a rivet reservoir with a flange as a rear end by a suitable transfer means into a counterbore of a liner or a brake shoe with its tip guided downward. . The rivet guide structure in the rivet feeder drops the rivet sent from the rivet reservoir with the flange at the rear end into a tapered guide tapered downward, and the tapered guide. The rivet is positioned with the leading end facing downward, and in this state, the flat rear end of the rivet is pressed by an extruder and the liner or brake is appropriately positioned on the surface of the brake shoe arranged on the mounting table. The rivet is formed so as to feed a rivet into a counterbore of the shoe. Also, the rivet fed into the counterbore hole of the liner or the brake shoe and penetrating the mounting hole of the brake shoe or the liner in such a manner is clamped and clamped by the extruder and the crimping body.

[0004]

However, the caulking device thus formed has the following problems.

[0005] That is, the first is that, in particular, in the case of the leading trailing system, the shape of the brake shoe is brought into contact with the inner peripheral surface of the brake drum, so that the surface on which the liner is attached follows the inner peripheral surface of the brake drum. Since it is curved and formed, it is necessary to perform crimping work while holding it by hand so that the curved surface comes into contact with the mounting table when placed on the mounting table, There is a problem that is difficult to work without.

The second problem is that, in the case of a brake shoe of a large vehicle, the weight of the brake shoe increases.
It is very difficult for an operator to work while holding the hand with hand or the like in the state of poor stability, and it is difficult to perform positioning, so that skill is required, work efficiency is poor, and there is a problem that the cost is increased.

[0007] Furthermore, since the third type is a vertical type, in the case of a brake shoe of a large car as described above, the visibility of the operator may be deteriorated, and from this point, it is difficult to perform positioning. There was also a problem that required skill.

Therefore, in view of the above-mentioned problems, the present invention always makes the rivet sending posture straight, so that anyone can easily adjust the rivet feeding position to the brake shoe during rivet feeding. Thus, it has been created to provide a device for improving work efficiency.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a rivet caulking device for caulking a rivet with a flange for fixing a liner to one surface of a brake shoe. Arrange the tightening machine so that the caulking direction is the horizontal direction, and a mounting table for mounting the brake shoe and the liner as the caulked member,
The above-mentioned problem is solved by arranging and forming the rivet at the rivet caulking position so as to be adjustable up and down.

[0010]

The rivet caulking device for fixing a liner on a brake shoe according to the present invention firstly adjusts the mounting table so that the brake shoe and the liner mounted on the mounting table are arranged at the rivet caulking position. In this state, the rivet is inserted into the counterbore of the liner from the side, and the rivet is swaged from the side.

[0011]

An embodiment of the present invention will be described below with reference to the drawings.

That is, the present invention basically provides a rivet caulking device for a rivet caulking device for securing a liner to a brake shoe for caulking a rivet with a flange for securing a liner to one surface of a brake shoe. The caulking machine is arranged so that the caulking direction is the horizontal direction, and the mounting table for mounting the brake shoe and the liner as the caulked member is placed and formed so that it can be raised and lowered so as to be installed at the rivet caulking position. It was done.

More specifically, a rivet setting device 1 for setting a rivet R with a flange F for fixing the liner L to one surface of the brake shoe S, and a rivet feeder 2
And a rivet setting machine 3 and a lifting table 4 as a mounting table on which the brake shoes S are mounted and adjusted vertically.

The rivet feeder 2 is formed so as to feed the rivet R sent from the flange F at the rear end into a counterbore provided in the liner L of the brake shoe S from the lateral direction. A rivet sent from a reservoir (not shown) through a transfer tube and a transfer path (both not shown) with a flange as a rear end by a transfer means such as a pressure feeding means by air pressure from a reservoir (not shown). A holding chuck 12 for regulating the tip so as to be held in a counterbore hole of the liner L; and an extruder for extruding the rivet held in the fed state into the counterbore hole of the liner L. 13.

An extruder 13 for extruding the rivet held by the holding chuck 12 applies a pressing force of a pneumatic cylinder 20 to a push rod 2 via a toggle 21 as shown in FIG.
2, the tip of the push rod 22 is formed into an elongated rod that can pass through the rivet passage tube 15, and the rivet in the rivet passage tube is pushed out by the tip portion, and the rivet is held during the pushing process. The posture is controlled while being held by the chuck 12, and the rivet is fed out in that state. At that time, the connection between the extruder 13 and the holding chuck 12 is such that the rivet passage cylinder is connected to and attached to a sliding portion 23 in which the tip of an extruding rod 22 of the extruder 13 is slidably disposed. The inner peripheral surface of the sliding portion 23 and the inner peripheral surface of the rivet passage cylinder are formed so that there is no step.

On the other hand, a rivet caulking machine 3 is arranged opposite to the rivet feeding machine 2 formed as described above.
The rivet setting machine 3 presses the tip of the rivet which is fed into the counterbore of the liner R by the rivet feeder 2 and penetrates the mounting hole of the brake shoe S from the opposite side of the liner R and sets. Is formed.

The rivet caulking machine 3 includes a rivet passing cylinder and a feeding head 1 in the rivet feeding machine 2.
A caulking rod 24 that moves on the same axis as the center axis of 4;
The crimping rod 24 includes a sliding holder 25 for slidably holding the crimping rod 24 in the moving direction thereof, and a hydraulic cylinder 26 for pressing the crimping rod 24 toward the rivet feeding machine 2. The rivet is caulked by the caulking rod 24 which is pressed by the hydraulic cylinder 26 and slides in the direction of the rivet feeder 2.

A rivet feeding machine 2 and a rivet caulking machine 3
The lifting platform 4 is disposed between the upper and lower platforms. The lifting platform 4 has a brake shoe S mounted thereon so as to be able to move up and down. The height of the mounting hole provided in the brake shoe S is equal to the height of the rivet feeding machine. It is formed so that it can be stopped and adjusted in a state where it is located at the rivet delivery position from the second rivet.

The elevating table 4 comprises a table 27, an elevating hydraulic cylinder 28 for elevating and lowering the table 27 in a vertical direction, and a guide portion 29 for elevating the table 27 in a horizontal state during the elevating operation. Then, a state in which the side surfaces of the brake shoes S and the liner L are mounted on the table 27 in advance according to the dimensions of the brake shoes S and the liner L is calculated by a control device such as a computer (not shown). The table 27 is raised to a height at which the central axis of the counterbore of the liner L and the central axis of the rivet when the rivet is sent out.

The rivet setting device 1 is formed by installing the rivet feeder 2, the rivet setting device 3, and the elevating platform 4 thus formed on the base 30.

It goes without saying that the present invention is not limited to the above-described embodiment.

[0022]

According to the present invention having the above-described structure, a rivet caulking device for securing a liner to a brake shoe S for caulking a rivet with a flange for securing a liner L to one surface of a brake shoe S is provided. The rivet setting machine 1 is arranged so that the setting direction is the horizontal direction, and the mounting table on which the brake shoe S and the liner L as the setting member are mounted is set at the rivet setting position. Since the rivets are arranged so as to be adjustable vertically, the rivets need only be inserted in the lateral direction, so that the rivets can be surely set without entering obliquely. Thereafter, by caulking the rivet, caulking can be performed without any caulking failure.

Then, the work is performed by the lifting table 4 in a state where the feeding head 14 of the rivet feeding machine 2 is positioned at the height of the mounting hole provided in the brake shoe S by the brake shoe S and the liner L. Because of the setting, even if the brake shoes S and the liner L are heavy, the workability is very excellent, so that the rivet R can be easily fed and crimped without any skill.

As described above, according to the present invention, the rivet is always in a straight-out position, and the rivet is fed in the horizontal direction, and the above-described elevator is provided. The present invention has various excellent effects such that anyone can easily perform the rivet feeding position adjustment to the shoe and can greatly improve the work efficiency.

[Brief description of the drawings]

FIG. 1 is a front sectional view of one embodiment of the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 rivet caulking device 2 rivet feeding machine 3 rivet caulking machine 4 elevating table 12 holding chuck 13 extruder 20 pneumatic cylinder 21 toggle 22 push rod 23 sliding part 24 caulking rod 25 sliding holding part 26 hydraulic cylinder 27 Table 28 Elevating hydraulic cylinder 29 Guide part 30 Base L Liner S Brake shoe

Claims (1)

(57) [Claims] In a rivet setting device for fixing a liner to a brake shoe for fixing a liner to a surface of a brake shoe, a rivet setting device for setting a rivet is set in a horizontal direction. A mounting table for mounting a brake shoe and a liner as a member to be tightened, the mounting table being arranged so as to be able to move up and down so as to be installed at a rivet tightening position. A rivet setting device for fixing the liner.