JPH07251233A - Brake shoe liner fixing rivet fastening device - Google Patents

Abstract

PURPOSE:To easily insert and fasten a rivet by arranging the device so as to make a rivet fastening direction the lateral direction and installing a mounting stand to mount a brake shoe and a liner as members to be fastened at a rivet fastening position. CONSTITUTION:A rivet with a flange is fastened in order to fix a liner L onto the surface of a brake shoe S. In a rivet fastening device 1 which fastens the rivet, a rivet fastening machine 3 is arranged so that its fastening direction is made in the lateral direction, and an elevating stand 4 as a mounting stand which mounts the brake shoe S and the liner L as members to be fastened is arranged in freely vertically adjustable. These brake shoe S and liner L are arranged at the rivet fastening position, and the rivet is inserted into a spot facing hole of the liner from the lateral side to be fastened. Therefore, the rivet is required to be inserted from a horizontal direction, so that it can be surely set without being inserted obliquely. After then, the rivet is fastened and the defective fastening of a rivet is avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rivet crimping device for fixing a liner of a brake shoe. When crimping a rivet with a flange for fixing a liner to one surface of a brake shoe, the rivet is laterally moved. The present invention relates to a rivet crimping device for fixing a liner of a brake shoe, in which the rivet is fed into the counterbore hole of the brake shoe to be crimped by improving the operability by a feeding method.

[0002]

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

This apparatus forms a mounting table on which a brake shoe is mounted, and a caulking body is arranged in the center of the mounting table so that the caulking body can be retracted from below, while the caulking bar is above the caulking bar. Is provided with a rivet feeder that feeds the rivet, which has been sent from the rivet reservoir with the flange as the rear end by an appropriate transfer means, into the liner or the counterbore hole of the brake shoe with the tip being guided downward. . In the rivet guide structure of the rivet feeder, the rivet sent from the rivet reservoir with the flange at the rear end is dropped downward into a tapered guide, and the narrow guide is formed. The rivet is positioned with the tip facing downward, and in that state, the flat rear end of the rivet is pressed by the extruder to properly position the liner or brake on the surface of the brake shoe arranged on the mounting table. It is formed so that a rivet can be fed into the counterbore hole of the shoe. Further, the rivet thus fed into the counterbore hole of the liner or the brake shoe and penetrating the attachment hole of the brake shoe or the liner is sandwiched between the extruder and the caulking body and caulked.

[0004]

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

That is, the first is that the shape of the brake shoe in the case of the leading trailing system is in contact with the inner peripheral surface of the brake drum, so that the surface on which the liner is mounted follows the inner peripheral surface of the brake drum. Since it is curved and formed, when it is placed on the mounting table, it is necessary for the operator to perform crimping work while holding the curved surface in contact with the mounting table with the hands, etc. There is a problem that it is difficult to work without it.

The second problem is that, especially 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 pressing with his / her hand in a poorly stable state, and it becomes difficult to align the position, so skill is required, and there is a problem that working efficiency is poor and cost is high.

Further, since the third type is a vertical type, in the case of the brake shoe of the large-sized vehicle as described above, the visual recognition state of the operator may be deteriorated, and from this point also the positioning becomes difficult. Therefore, there was a problem that required skill.

In view of the above-mentioned problems and the like, therefore, the present invention keeps the rivet delivery posture straight and allows anyone to easily align the rivet feed position with the brake shoe when the rivet is delivered. Thus, the object was to provide a device for improving the work efficiency by obtaining the above-mentioned information.

[0009]

SUMMARY OF THE INVENTION The present invention is a rivet crimping device for fixing a liner of a brake shoe which crimps a rivet with a flange for fixing a liner to one surface of a brake shoe. Arrange the clamping machine so that the crimping direction is the lateral direction, and place the mounting table on which the brake shoe as the member to be crimped and the liner are mounted.
The above-described problems are solved by arranging and forming the elevator so as to be adjustable up and down so as to be installed at the rivet tightening position.

[0010]

In the rivet crimping device for fixing the liner of the brake shoe according to the present invention, first, the brake shoe and the liner placed on the mounting table are arranged at the rivet clamping position by adjusting the mounting table up and down. In that state, the rivet is inserted into the counterbore hole of the liner from the side and the rivet is crimped from the lateral direction.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings.

That is, basically, the present invention is a rivet crimping device for fixing a liner of a brake shoe which crimps a rivet with a flange for fixing the liner to one surface of the brake shoe. The crimping machine is arranged so that the crimping direction is horizontal, and the mounting table on which the brake shoe as the member to be crimped and the liner are mounted is arranged to be adjustable up and down so as to be installed at the rivet crimping position. It was done.

Then, specifically, a rivet crimping device 1 for crimping 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 caulking machine 3 and a lifting table 4 as a mounting table on which the brake shoe S is mounted to be adjusted up and down.

The rivet feeder 2 is formed so as to laterally feed the rivet R fed from the flange F as the rear end into the counterbore provided in the liner L of the brake shoe S. 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, for example, a transfer means such as a pressure-feeding means by air pressure, A holding chuck 12 that regulates the tip to keep it fed into the counterbore hole of the liner L, and an extruder that pushes the rivet held in this fed state into the counterbore hole of the liner L. 13 and 13.

The extruder 13 for extruding the rivet held by the holding chuck 12 pushes the pressing force of the pneumatic cylinder 20 through the toggle 21 through the push rod 2 as shown in the figure.
2, the tip end portion of the push-out rod 22 is formed into an elongated rod that can pass through the rivet passage cylinder 15, and the rivet inside the rivet passage cylinder is pushed out by this tip portion, and the rivet is held in the process of pushing out. The rivet is held by the chuck 12 and its posture is controlled, and the rivet is sent out in this state. At that time, the extruder 13 and the holding chuck 12 are connected to each other by connecting the rivet passage cylinder to the sliding portion 23 in which the tip of the extrusion rod 22 of the extruder 13 is slidably arranged. 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 crimping machine 3 is arranged so as to face the rivet feeding machine 2 thus formed.
The rivet crimping machine 3 is crimped by pressing the tip of the rivet, which is fed into the counterbore hole 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. Is formed in.

The rivet crimping machine 3 has the rivet passing cylinder and the feeding head 1 in the rivet feeding machine 2.
4, a swaging bar 24 that moves on the same axis as the central axis of 4;
The slide holding portion 25 holds the caulking rod 24 slidably in its moving direction, and a hydraulic cylinder 26 that presses the caulking rod 24 toward the rivet feeder 2. Then, the rivet is crimped by the crimping rod 24 which is pressed by the hydraulic cylinder 26 and slid toward the rivet feeder 2.

Further, the rivet feeding machine 2 and the rivet crimping machine 3
The lift table 4 is disposed between the lift shoe 4 and the lift shoe 4, and the lift shoe 4 is mounted on the lift shoe 4 so that the brake shoe S can be lifted up and down. It is formed so as to be adjustable so that it can be stopped in the state in which it is located at the rivet delivery position from 2.

The elevating table 4 comprises a table 27, an elevating hydraulic cylinder 28 for elevating the table 27 in the vertical direction, and a guide portion 29 for elevating the table 27 in a horizontal state when elevating the table 27. Then, a control device such as a computer (not shown) calculates a state in which the side surfaces of the brake shoe S and the liner L are previously placed on the table 27 in accordance with the dimensions of the brake shoe S and the liner L, and in that state The table 27 is lifted to a height at which the central axis of the counterbore hole of the liner L and the central axis of the rivet in the delivery of the rivet coincide with each other.

The rivet crimping device 1 is formed by installing the rivet feeding machine 2, the rivet crimping machine 3, and the lifting table 4 thus formed on the base 30, respectively.

Needless to say, the present invention is not limited to the above-mentioned embodiments.

[0022]

According to the present invention constructed as described above, in the rivet crimping device for fixing the liner of the brake shoe S, the rivet crimping device for crimping the flanged rivet for fixing the liner L to one surface of the brake shoe S is crimped. The rivet crimping machine 1 for carrying out the above is arranged so that the crimping direction is the lateral direction, and the mounting table on which the brake shoe S as the member to be crimped and the liner L are mounted is installed at the rivet crimping position. Since the rivets are arranged so that they can be adjusted up and down, the rivets need only be placed in the lateral direction, so that the rivets can be set securely without entering diagonally. After that, the rivet can be crimped without causing a crimping defect.

Then, the work is carried out by the lifting table 4 so that the feeding head 14 of the rivet feeding machine 2 is positioned at the height of the mounting hole where the brake shoe S and the liner L are provided in the brake shoe S. Even if the brake shoe S and the liner L, which are heavy in weight, are set, the workability is very excellent, so that the rivet R can be easily fed and caulked without requiring skill.

As described above, according to the present invention, the rivet feeding posture is always kept straight, the rivet is fed in the lateral direction, and the elevating table described above is provided. Anyone can easily adjust the position of the rivets to be fed into the shoe, and the working efficiency can be greatly improved, and various other advantageous effects can be obtained.

[Brief description of drawings]

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

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 rivet caulking device 2 rivet caulking machine 3 rivet caulking machine 4 lifting platform 12 holding chuck 13 extruding machine 20 pneumatic cylinder 21 toggle 22 extruding rod 23 sliding part 24 caulking rod 25 sliding holding part 26 hydraulic cylinder 27 Table 28 Lifting hydraulic cylinder 29 Guide part 30 Base L Liner S Brake shoe

Claims (1)

[Claims] 1. A rivet crimping device for fixing a liner of a brake shoe for crimping a rivet with a flange for fixing a liner to one surface of a brake shoe, wherein a rivet crimping machine for crimping a rivet has a lateral crimping direction. Of the brake shoe, which is arranged in such a manner that the brake shoe as a member to be crimped and the liner on which the liner is mounted are arranged to be adjustable up and down so as to be installed at the rivet crimping position. Rivet caulking device for fixing liner.