JP2016188013A - Compression adjustment device for pressure-welding trolley wire at ordinary temperature - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compression adjustment device which enables anyone to easily and appropriately adjust compression strength that determines connection performance of a trolley wire.SOLUTION: A compression adjustment device 1 is provided in an ordinary temperature pressure-welding device in which two trolley wires T1, T2 are respectively held in a stationary chuck C1 and a movable chuck C2 and the two trolley wires T1, T2 are pressure-weld and connected by making the movable chuck C2 approach the stationary chuck C1, releasing holding members H1, H2 and making the movable chuck C2 retreat, to abut end faces of the trolley wires T1, T2 against each other. In the compression adjustment device 1, an attachment frame 2 that is fixed to the stationary chuck C1 is extended along the movement direction of the movable chuck C2, and a ball screw 3 and a rotary encoder 4 are fixed in the attachment frame 2. A screw shaft 7 is screwed to a slide block 8 that is fixed to the movement chuck C2, and the ball screw 3 rotates the screw shaft 7 accompanying the movement of the slide block 8. The rotary encoder 4 rotates together with the screw shaft 7 to output rotational displacement which is counted by a control unit, and the control unit performs movement control to position the movable chuck C2.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a compression adjusting device used in a trolley wire room temperature pressure welding apparatus for joining and connecting the end surfaces of two trolley wires at high pressures in the axial direction so as to be fused and integrated at room temperature. .

  As a conventional trolley wire room-temperature pressure welding apparatus, for example, one described in Patent Document 1 is known. This device grips the ends of the trolley wires to be connected with the left and right chucks, and presses the end surfaces of the trolley wires that are brought into close contact with each other at a high pressure a plurality of times. The parts are crushed and integrated in the axial direction. In the actual pressure adjustment of this apparatus, the limit switch is fixed at the stop position of the moving chuck, the switch dog is attached to the moving chuck, and the limit switch is operated by the switch dog and positioned at the approach stop position.

JP 2006-15950 A

In the above-mentioned conventional trolley wire room temperature pressure welding device, the operating position of the limit switch is adjusted to the appropriate stop position of the movable chuck that obtains the predetermined compressive strength even though the compressive strength affects the connecting strength of the trolley wire. However, the positioning of the limit switch is likely to vary depending on the operator, and it is a troublesome work that requires time for adjustment, resulting in a large labor load before the compression work.
An object of the present invention is to provide a trolley wire room temperature pressure compression adjusting device that allows anyone to easily adjust the compression strength that determines the connection performance of the trolley wire to an appropriate strength.

  In order to solve the above-mentioned problems, the present invention includes a fixed chuck C1 and a movable chuck C2 for gripping the ends of two trolley wires T1 and T2 by a pair of opposed gripping members H1 and H2, respectively. The moving chuck C2 approaches the fixed chuck C1 by gripping the ends of T1 and T2, respectively, and the gripping members H1 and H2 are released to move away from each other so that the end surfaces of the trolley wires T1 and T2 are brought into contact with each other. A compression adjusting device 1 of a room temperature pressure welding device to be pressure-contacted and connected is configured. The compression adjusting apparatus 1 includes a mounting frame 2 fixed to the fixed chuck C1 and extending along the moving direction of the moving chuck C2, and a slide block 8 fixed on the mounting frame 2 and fixed to the moving chuck C2. The ball screw 3 that rotates the screw shaft 7 screwed to the slide block 8 by moving together with the C2, the rotary encoder 4 that rotates together with the screw shaft 7 and outputs the rotational displacement, and the rotational displacement of the rotary encoder 4 are counted. And a control device for positioning the moving chuck C2 by controlling the driving means L1 of the moving chuck C2.

  In this invention, by moving along the mounting frame together with the moving chuck, the screw shaft rotates according to the displacement of the slide block of the ball screw, and the control device counts the rotational displacement of the rotary encoder to position the moving chuck. Therefore, anyone can easily grasp the displacement, easily confirm the approach / stop position of the moving chuck, and have an effect that the trolley wire can be connected with an appropriate pressure contact strength in a short time without variation by the operator.

It is a front view of a trolley wire room temperature pressure welding apparatus. It is a top view of the trolley wire normal temperature pressure welding apparatus which attached the compression adjustment apparatus which concerns on this invention. It is a side view of the trolley wire normal temperature pressure welding apparatus of FIG. It is a front view of the compression adjustment apparatus of FIG. It is a top view of the compression adjustment apparatus of FIG. It is a side view of the compression adjustment apparatus of FIG.

An embodiment of the present invention will be described with reference to the drawings.
1 to 3, the left and right fixed chucks C1 and the movable chuck C2 provided in the trolley wire room temperature pressure welding apparatus are connected to the ends of the trolley wires T1 and T2 to be connected by driving of the driving means L2, respectively. After gripping with the pair of gripping members H1 and H2 and approaching in the axial direction of the trolley wire by driving of the driving means L1, the trolley wire is released to move away. By repeating these gripping, approaching, releasing, and separating operations, the end surfaces of the trolley wires T1 and T2 that are abutted are pressed against each other at a high pressure a plurality of times, thereby crushing the ends of the two trolley wires T1 and T2. Connect them together.

  As shown in FIGS. 2 and 3, the compression adjusting device 1 is provided on the side of the fixed chuck C1 and the moving chuck C2, detects the displacement of the moving chuck C2, and stops the moving chuck C2 at a predetermined position. And pressed with an appropriate compressive strength. The compression adjusting device 1 is fixed to the fixed chuck C1 and extends to the moving chuck C2 side, a ball screw 3 fixed in the longitudinal direction on the mounting frame 2, and a rotary connected to the end of the ball screw 3. An encoder 4 and a limit switch 5 fixed to a substantially middle portion of the mounting frame 2 are provided.

  The mounting frame 2 is made of a long rectangular plate having a substantially L-shaped cross section composed of a horizontal plate 2a and a vertical plate 2b extending from the fixed chuck C1 to the moving chuck C2 along the moving direction of the moving chuck C2. One end of the vertical plate 2b is formed wide in the vertical direction so as to be screwed to the fixed chuck C1.

  The ball screw 3 includes a long rectangular housing 6, a screw shaft 7 that extends in the longitudinal direction in the housing 6, and a slide block 8 that engages with the screw shaft 7. The housing 6 is fixed to the horizontal plate 2a of the mounting frame 2 by screwing. The screw shaft 7 is rotatably supported at substantially the center of the housing 6. The slide block 8 is slidably fitted in accordance with the sectional shape of the space including the guide rail in the housing 6, and the screw shaft 7 is rotated along with the movement of the housing 6 in the longitudinal direction to rotate the linear displacement thereof. Convert to A slide table 9 is fixed to the upper part of the slide block 8, and an attachment plate 10 for attachment to the moving chuck C2 is fixed. The slide table 9 rises in the front-rear direction by causing both side walls to rise and face each other, and the upper side thereof is closed by the mounting plate 10 so as to penetrate the canopy 6a of the housing 6. The mounting plate 10 includes a base portion 10a that covers the upper portion of the slide table 9, a mounting piece 10b that rises almost vertically from one side edge, and a mounting pin 10c that passes through the mounting piece 10b and is fixed to the moving chuck C2. .

  The rotary encoder 4 is fixed to a bracket 12 erected on the horizontal plate 2 a of the mounting frame 2. The rotary encoder 4 is coupled to the screw shaft 7 of the ball screw 3 via a coupling 11 and rotates together with the screw shaft 7 to output a signal corresponding to the rotational displacement. The output signal of the rotary encoder 4 is counted by a control device (not shown), and based on this, the position of the moving chuck C2 is controlled to position the moving chuck C2 at the stop position.

  The limit switch 5 is attached via a bracket 13 fixed to a substantially middle part of the horizontal plate 2a of the attachment frame 2. The limit switch 5 is disposed so as to project in the course of movement of the switch dog 14 that protrudes laterally and is fixed to the slide table 9 of the slide block 8, and restricts the movement limit of the moving chuck C2.

  In this compression adjusting device 1, the end portions of the trolley wires T1 and T2 to which the fixed chuck C1 and the movable chuck C2 are to be connected are gripped by the pair of gripping members H1 and H2 at the time of pressure welding by the trolley wire room temperature pressure welding device. When the moving chuck C2 approaches the fixed chuck C1, the slide block 8 of the ball screw 3 moves together with the moving chuck C2, and the screw shaft 7 is rotated. The rotary encoder 4 that rotates together with the screw shaft 7 outputs a signal corresponding to the rotational displacement, and the controller counts this to detect the displacement of the moving chuck C2. Therefore, the control device can position the moving chuck C2 at a predetermined position by controlling the driving means L1, and can accurately press-contact the trolley wires T1 and T2 with a predetermined compression amount. , T2 can be connected to an appropriate strength in a short time.

DESCRIPTION OF SYMBOLS 1 Compression adjusting device 2 Mounting frame 2a Horizontal plate 2b Vertical plate 3 Ball screw 4 Rotary encoder 5 Limit switch 6 Housing 7 Screw shaft 8 Slide block 9 Slide table 10 Mounting plate 11 Coupling 12 Bracket 13 Bracket 14 Switch dog C1 Fixed chuck C2 Movement Chuck L1 Driving means H1 Holding member H2 Holding member T1 Trolley wire T2 Trolley wire

Claims (1)

A fixed chuck and a moving chuck for gripping the ends of the two trolley wires by a pair of opposing gripping members, respectively, gripping the ends of the trolley wires, the moving chuck approaching the fixed chuck, and holding the gripping member In a room-temperature pressure welding apparatus in which the end surfaces of the trolley wires are brought into contact with each other and pressed to connect the two trolley wires by releasing and separating,
A mounting frame fixed to the fixed chuck and extending along a moving direction of the movable chuck;
A ball screw that is fixed on the mounting frame and rotates with a screw shaft that is screwed into the slide block when the slide block fixed to the moving chuck moves together with the moving chuck;
A rotary encoder that rotates together with the screw shaft and outputs a rotational displacement; and a controller that positions the moving chuck by controlling the driving means of the moving chuck by counting the rotational displacement of the rotary encoder. A trolley wire compression adjusting device for room temperature pressure welding.

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