CN210677867U - Light Rail Train Center Pin Horizontal Machining Fixture - Google Patents

Abstract

The horizontal processing fixture for the center pin of the light rail train includes a base, a first support block is arranged at the front of the base, a height-adjustable spacer is installed on the top of the first support block through threads, and two left and right are arranged at the rear of the base with the same height. The second support block is provided with a first block on the right side of the second support block on the right side of the base, and two second blocks arranged on the left and right are set in front of the two second support blocks on the base. A first vertical screw rod is arranged between the two second stoppers, a pressing plate is sleeved on the first vertical screw rod, and a first nut is installed on the top of the first screw rod. It can make the center pin clamping and positioning operation simple, save time and labor, improve production efficiency, improve the stability of the center pin positioning structure, greatly reduce the center pin processing error, and improve product quality.

Description

Light Rail Train Center Pin Horizontal Machining Fixture

technical field

The utility model relates to light rail train center pin processing equipment, in particular to a light rail train and a center pin horizontal processing fixture.

Background technique

The center pin is connected to the body of the light rail train above, and connected to the bogie of the light rail train below, which is an important connecting component connecting the body of the light rail train to the bogie. During the processing of the center pin, it needs to be clamped and positioned on the operation platform of the CNC machine tool. The existing clamping and positioning operation of the center pin is as follows: first, the axle box body is horizontally supported on the operation platform of the CNC machine tool through a plurality of pads. Then, a plurality of pressing plates on the operation platform of the CNC machine tool are pressed and held on the top surface of the center pin in turn through bolts. The above-mentioned center pin clamping and positioning operation is complicated, time-consuming and laborious, and has low production efficiency, and the positioning structure of the pressure plate supported by the bolster and the bolt is unstable, resulting in large processing errors of the center pin and low product quality.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the utility model provides a horizontal processing fixture for the center pin of a light rail train, which can simplify the clamping and positioning operation of the center pin, save time and effort, improve production efficiency, and improve the stability of the center pin positioning structure. It can reduce the processing error of the center pin and improve the product quality.

The technical solution of the present utility model is:

The horizontal processing fixture for the center pin of the light rail train, including the base, is special in that: a first support block is set at the front of the base, a height-adjustable spacer block is installed on the top of the first support block through threads, and a second support block is set at the back of the base. There are two second support blocks arranged left and right with the same height, a first block is set on the right side of the second support block on the right side of the base, and two second support blocks are arranged on the base in front of the two second support blocks. For the stopper, a first vertical screw rod is arranged between the two second stoppers on the base, a pressure plate is sleeved on the first vertical screw rod, and a first nut is installed on the top of the first screw rod.

Further preferably, the front ends of the two second stoppers are screwed to install the first jacks that are adjusted back and forth.

Further preferably, the pressing plate is composed of a connecting body and three first pressing arms uniformly arranged on the connecting body in the circumferential direction.

Further preferably, a second top wire that can be adjusted up and down is installed at the bottom of the outer edge end of one of the first pressing arms through threads.

Further preferably, a second screw rod arranged left and right is arranged on the base in front of the two second stoppers, a second pressing arm is sleeved on the second screw rod, a second nut is installed on the top of the second screw rod, and the second pressing arm is passed through the second screw rod. The secondary pressing of the center pin improves the clamping stability of the center pin.

Further preferably, a spring is set on the second screw rod under the second pressing arm, and when the second nut is screwed up, the compressed spring rebounds, so that the second pressing arm automatically rises and returns.

Further preferably, two vertical guide rods arranged left and right are arranged on the base between the first support block and the two second screws, and the front end of the center pin is placed between the two vertical guide rods for pre-positioning, which is convenient for centering. Pin quick clamping positioning.

The beneficial effects of the present utility model are:

Since the top of the first support block arranged at the front of the base is screwed to install the height-adjustable spacer block, the two second support blocks arranged at the rear of the base at the left and right with the same height support the bottom surface of the center pin on the spacer block and the two second support blocks with the same height. The top surface of the second support block, and adjust the height of the spacer block so that the center pin is placed horizontally for horizontal positioning; because the first stopper set on the right side of the second support block on the right side is set in front of the two second support blocks For the second stopper, the rear end face of the middle of the center pin is pressed against the front end of the first jacking wire, and the front and rear directions are positioned. A first vertical screw rod is arranged between the second stoppers, a pressure plate sleeved on the first vertical screw rod, a first nut installed on the top of the first screw rod, the first nut is locked, and the pressure plate presses and fixes the center pin; The center pin clamping and positioning operation is simple, saves time and labor, improves production efficiency, and improves the stability of the center pin positioning structure, greatly reduces the center pin processing error, and improves product quality.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the structural representation of the first pressing arm in Fig. 1;

Fig. 3 is the structural schematic diagram after the utility model and the center pin are clamped;

In the picture: 1-base, 2-first support block, 3-pad, 4-second support block, 5-first stopper, 6-second stopper, 7-first top wire, 8-first stopper A vertical screw, 9-pressing plate, 10-second top wire, 11-first nut, 12-second screw, 13-second pressing arm, 14-spring, 15-second nut, 16-vertical guide Rod, 901-connecting body, 902-first pressing arm.

Detailed ways

As shown in Figures 1 and 2, the light rail train center pin horizontal processing fixture includes a base 1, a first support block 2 is installed at the front of the base 1, and a height-adjustable spacer block is installed on the top of the first support block 2 through threads 3. Install two second support blocks 4 arranged on the left and right sides and have the same height at the rear of the base 1, install the first stopper 5 on the right side of the second support block 4 on the right side of the base 1, and install the first stopper 5 on the right side of the second support block 4 on the base Two second stoppers 6 arranged left and right are installed in front of each second support block 4 , and the front ends of the two second stoppers 6 are screwed to install front and rear adjustment first jacks 7 , and two second stoppers are located on the base 1 . A first vertical screw 8 is installed between the blocks 6, and a pressing plate 9 is sleeved on the first vertical screw 8. The pressing plate 9 is composed of a connecting body 901 and three first pressing arms uniformly arranged on the connecting body 901 in the circumferential direction. 902, a second jack screw 10 that can be adjusted up and down is installed at the bottom of the outer edge end of one of the pressing arms through a thread, a first nut 11 is installed at the top of the first screw rod, and left and right are installed on the base 1 in front of the two second stoppers 6 The second screw 12 is arranged, the second pressing arm 13 is sheathed on the second screw 12, the spring 14 is sheathed on the second screw 12 under the second pressing arm 13, the second nut 15 is installed on the top of the second screw 12, Two vertical guide rods 16 arranged left and right are installed on the base 1 between the first support block 2 and the two second screws 12 .

As shown in Figure 3, when operating, first install the base 1 on the operation platform of the CNC machine tool, then put the front end of the center pin from top to bottom through the two vertical guide rods 16, and support the bottom surface of the front end of the center pin on the The top of the cushion block 3 supports the bottom surface of the rear end of the center pin on the top of the two second support blocks 4, and at the same time, the first vertical screw 8 is passed upward through the guide hole in the vertical direction of the center pin, and the height of the cushion block 3 is adjusted. Place the center pin horizontally and perform horizontal positioning; then push the center pin backwards, press the middle rear end surface of the center pin against the front end of the first top wire 7, perform front and rear positioning, push the center pin to the right, and place the rear end of the center pin on the right end The surface is pressed against the left end of the first stopper 5, and the left and right directions are positioned; then the pressure plate 9 is sleeved on the top of the first screw, the second top wire 10 is supported on the top surface of the front end of the center pin, and the two second screws at the rear of the pressure plate 9 A pressing arm 902 is respectively supported on the top surfaces of the left and right sides of the rear of the center pin, the first nut 11 is locked, the pressing plate 9 presses and fixes the center pin, and the second pressing arm 13 is inserted into the weight-reducing hole on the side wall of the center pin, The second nut 15 is locked, the second pressing arm 13 is pressed against the bottom surface of the weight-reducing hole on the side wall of the center pin, and the center pin is pressed and fixed again; finally, the CNC machine tool is started to start the center pin processing operation.

The above are only specific embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (7)

1. Horizontal adds clamping apparatus for light rail train core pin, including the base, its characterized in that: the base is characterized in that a first supporting block is arranged in front of the base, a cushion block with adjustable height is mounted on the top end of the first supporting block through threads, two second supporting blocks which are arranged left and right and are equal in height are arranged at the rear of the base, a first stop block is arranged on the right side of the second supporting block on the right side of the base, two second stop blocks which are arranged left and right are arranged in front of the two second supporting blocks on the base, a first vertical screw rod is arranged between the two second stop blocks on the base, a pressing plate is sleeved on the first vertical screw rod, and a first nut is mounted at the top end of the first screw rod.

2. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 1, wherein: and the front ends of the two second stoppers are provided with first jackscrews which are adjusted back and forth through threads.

3. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 1, wherein: the pressing plate is composed of a connecting body and three first pressing arms which are uniformly arranged on the connecting body in the circumferential direction.

4. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 3, wherein: and a second jackscrew which is adjusted up and down is installed at the bottom of the outer edge end of one of the first pressure arms through threads.

5. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 1, wherein: and a second screw rod which is arranged left and right is arranged in front of the two second stoppers on the base, a second pressure arm is sleeved on the second screw rod, and a second nut is arranged at the top end of the second screw rod.

6. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 5, wherein: and a spring is sleeved below the second pressure arm on the second screw rod, and when the second nut is screwed up, the compressed spring rebounds to enable the second pressure arm to automatically rise and return.

7. The horizontal machining clamp for the center pin of the light rail train as claimed in claim 1, wherein: two vertical guide rods which are arranged left and right are arranged between the first supporting block and the two second screw rods on the base.

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