CN209407765U - A special positioning equipment for axle welding - Google Patents

Abstract

The utility model belongs to the field of axle welding, in particular to a special positioning device for axle welding. Aiming at the existing problems of large positioning error and weak clamping during welding, the following scheme is proposed, which includes a cast iron platform on which Both sides of the surface are symmetrically arranged with large line rails along the length direction, and multiple sliders are slidably installed on the large line rails, and the right large drag plate, the left large drag plate, and the right large drag plate are respectively fixed on the multiple sliders. The positioning mechanism is installed on both the left and the large dragging boards. The positioning mechanism includes a support seat. A pad iron is arranged on the support seat. An axle is arranged between the two pad irons. Both sides of the axle are welded with a brake bottom plate. The brake bottom plate One end of the shaft is provided with a shaft positioning rod, and a shaft locking cylinder is installed on the side wall of the right large carriage far away from the left large carriage. The utility model has the advantages of simple structure, novel design and high degree of automation. Fast, accurate and firm, easy to operate and high in safety, it is worth popularizing.

Description

A special positioning equipment for axle welding

technical field

The utility model relates to the technical field of axle welding, in particular to a special positioning device for axle welding.

Background technique

In the prior art, when the American-style axle is welded to the spherical bearing support seat and the air chamber seat, due to the low cost of the positioning tooling and the simple structure, there are insurmountable defects, and there are two major problems.

Problem 1: The spherical bearing support seat and the camshaft hole on the brake base plate have coaxial precision requirements, and the distance between the two has many sizes, and the positioning tool is not easy to do. Simply use the shaft and sleeve for positioning , but there are fatal flaws, the shaft and the sleeve must have no gap and wear, the gap and the positioning error are more than ten times the magnifying glass relationship, that is to say, if there is a gap of 0.1 mm between the positioning shaft and the sleeve, the positioning error is more than 1 mm, and the wear It has always existed, and the positioning error has been increasing, and there is no firm clamping, and the welding positioning accuracy of the spherical bearing support seat cannot be guaranteed;

Problem 2: In addition, because there are many styles of air chamber seats, and the distance from the shaft shoulder also has many sizes, the positioning tool itself is placed on the platform by a certain amount of its own weight, without reliable fixation and accurate and reliable positioning. Although the tooling has positioning pins Positioning, but the air chamber seat cannot be firmly clamped after positioning, and it cannot be guaranteed that it will not be deformed during spot welding.

Utility model content

The utility model proposes a special positioning device for axle welding, which solves the problems of large positioning error and weak clamping during welding.

In order to achieve the above object, the utility model adopts the following technical solutions:

A special positioning device for axle welding, comprising a cast iron platform, the two sides of the upper surface of the cast iron platform are symmetrically arranged with large-size line rails along the length direction, and a plurality of sliders are slidably installed on the large-size line rails, and on the plurality of sliders The right and left large carriages are respectively fixed, and positioning mechanisms are installed on the right and left large carriages. The positioning mechanism includes a supporting seat, and a parallel iron is arranged on the supporting seat. There is an axle, and the brake bottom plate is welded on both sides of the axle, and one end of the brake bottom plate is provided with a shaft positioning rod. A shaft locking cylinder is installed on the side wall of the right big pallet far away from the left big pallet, and the left big pallet is far away from the right An adjustable limit seat is installed on the side wall of the large pallet, and a positioning sleeve for the bottom plate is installed on the support seat. There are medium-sized line rails symmetrically arranged on both sides of the upper surface of the right large pallet and the left large pallet. Sliding installation with a slide plate, one side of the upper surface of the slide plate is fixed with a rough square positioning iron, a mounting seat is installed on the slide plate, positioning flanges are installed on the adjacent side walls of the two mounting seats, and spherical bearings are installed on the positioning flange Seat, spherical bearing support seat positioning pin is installed on the spherical bearing support seat, quick clips are installed on the side walls of the two mounting seats close to each other, and spherical bearing support seat positioning pins are installed on the side walls of the two mounting seats away from each other. Pin telescopic cylinder, the length adjustment screw rod is symmetrically installed on the supporting seat, the mounting plate is welded on one side wall of the cast iron platform, the air chamber seat positioning plate is symmetrically installed on the mounting plate, and the air chamber seat positioning plate is symmetrically installed on the air chamber seat positioning plate. Air chamber seat, the air chamber seat positioning pin is installed on the air chamber seat positioning plate, multiple adjustable pressure heads are installed on the air chamber seat positioning plate, a fixed swing arm is installed on one side of the air chamber seat positioning plate, and the air chamber seat positioning The top of the plate is equipped with an air chamber seat positioning pin telescopic cylinder, and the fixed swing arm is equipped with an air chamber seat compression cylinder. Adjustable top wire, the air chamber seat positioning die advance and retreat cylinder is installed on one side of the mounting plate, the air chamber seat positioning die advance and retreat cylinder is symmetrically arranged on both sides of the retreat position adjustment screw rod, the mounting plate is symmetrically provided with small line rails, the air chamber seat The positioning plate is slidingly installed on the small wire track.

Preferably, eight mounting brackets are welded on the bottom side wall of the cast iron platform, the mounting brackets include two mounting rods and a support base, one end of the mounting rod is welded on the support base, and the other end of the mounting rod is welded on the cast iron platform .

Preferably, four limit blocks are welded on the upper surface of the cast iron platform, and the four limit blocks are respectively located at the two ends of the two large-size line rails.

Preferably, the supporting seat is provided with a V-shaped groove, the pad iron is located in the V-shaped groove, and the V-shaped groove is in contact with the bearing position of the axle.

Preferably, the shaft positioning rod is matched with the telescopic cylinder of the positioning pin of the spherical bearing support seat.

Compared with the prior art, the beneficial effects of the utility model are:

The coaxiality accuracy of the positioning pin of the spherical bearing support seat and the positioning sleeve hole of the base plate is guaranteed by the finished parts and the precision moving part line rail slider, and the camshaft hole on the brake base plate and the positioning sleeve hole of the base plate are determined by the shaft positioning rod. Guaranteed to be coaxial, so as to ensure that the spherical bearing support seat and the cam shaft hole on the brake base plate are coaxial. The spherical bearing support seat is positioned by 4 retractable spherical bearing support seat positioning pins, and is fixed on the end face of the positioning flange by quick clamps On, accurate, firm, simple and fast, the air chamber seat is positioned by 2 retractable air chamber seat positioning pins, and the swing arm is fixed by the cylinder, and pressed on the air chamber by the adjustable top wire on the adjustable pressure head Seat positioning plate, convenient and reliable.

The utility model has the advantages of simple structure, novel design, high degree of automation, high work efficiency while ensuring precision, fast, accurate and firm positioning, convenient operation and high safety, and is worth popularizing.

Description of drawings

Fig. 1 is a structural schematic diagram of a special positioning device for axle welding proposed by the utility model.

In the figure: 1 cast iron platform, 2 large line rails, 3 sliders, 4 right large pallet, 5 left large pallet, 6 support seat, 7 pad iron, 8 base plate positioning sleeve, 9 brake base plate, 10 axis positioning Rod, 11 adjustable limit seat, 12 medium line rail, 13 rough square positioning iron, 14 mounting seat, 15 positioning flange, 16 spherical bearing support seat, 17 spherical bearing support seat positioning pin, 18 quick clip, 19 spherical surface Bearing support seat positioning pin telescopic cylinder, 20 length adjustment screw, 21 lock shaft cylinder, 22 air chamber seat positioning plate, 23 air chamber seat positioning pin, 24 adjustable pressure head, 25 air chamber seat, 26 fixed swing arm, 27 Air chamber seat positioning pin telescopic cylinder, 28 air chamber seat compression cylinder, 29 height adjustment screw, 30 adjustable jacking screw, 31 small line rail, 32 air chamber seat positioning mold advance and retreat cylinder, 33 retreat position adjustment screw, 34 axles.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Fig. 1, a special positioning device for axle welding includes a cast iron platform 1, eight installation frames are welded on the bottom side wall of the cast iron platform 1, the installation frame includes two installation rods and a support seat, and one end of the installation rod is welded on the support On the seat, the other end of the installation rod is welded on the cast iron platform 1, and both sides of the upper surface of the cast iron platform 1 are symmetrically arranged with large line rails 2 along the length direction, and four limit blocks are welded on the upper surface of the cast iron platform 1, and four The limit blocks are respectively located at the two ends of the two large-size line rails 2, and multiple sliders 3 are slidably installed on the large-size line rails 2, and the right large dragging board 4 and the left large dragging board are respectively fixed on the multiple sliders 3 Plate 5, the right large dragging plate 4 and the left large dragging plate 5 are all equipped with a positioning mechanism, the positioning mechanism includes a support seat 6, and the support seat 6 is provided with a horn 7, and an axle 34 is arranged between the two horns 7, Both sides of the axle shaft 24 are welded with a brake base plate 9, one end of the brake base plate 9 is provided with a shaft positioning rod 10, a V-shaped groove is arranged on the support seat 6, and the pad iron 7 is located in the V-shaped groove, and the V and Groove contacts with the bearing phase of axle shaft 34, and right large plank 4 is away from the sidewall that left large plank 5 is equipped with lock shaft cylinder 21, and left large plank 5 is far away from the sidewall of right large plank 4 and can be installed on the sidewall. The adjustable limit seat 11, the base plate positioning sleeve 8 is installed on the support seat 6, the medium line rail 12 is symmetrically arranged on both sides of the upper surface of the right large drag plate 4 and the left large drag plate 5, and the medium line rail 12 is slidably installed with Skateboard, one side of the upper surface of the skateboard is fixed with a rough square positioning iron 13, a mounting seat 14 is installed on the sliding plate, and positioning flanges 15 are installed on the side walls close to the two mounting seats 14, and a spherical surface is installed on the positioning flange 15. Bearing support seat 16, spherical bearing support seat locating pin 17 is installed on the spherical surface bearing support seat 16, quick clamp 18 is all installed on the side wall that two mounting seats 14 are close to each other, on the side wall that two mounting seats 14 are far away from each other Both are equipped with spherical bearing support seat positioning pin telescopic cylinder 19, shaft positioning rod 10 is matched with spherical bearing support seat positioning pin telescopic cylinder 19, length adjustment screw rod 20 is symmetrically installed on support seat 6, one side of cast iron platform 1 A mounting plate is welded on the wall, and an air chamber seat positioning plate 22 is symmetrically installed on the mounting plate, and an air chamber seat 25 is symmetrically installed on the air chamber seat positioning plate 22, and an air chamber seat positioning pin 23 is installed on the air chamber seat positioning plate 22 , a plurality of adjustable pressure heads 24 are installed on the air chamber seat positioning plate 22, a fixed swing arm 26 is installed on one side of the air chamber seat positioning plate 22, and an air chamber seat positioning pin telescopic cylinder is installed on the top of the air chamber seat positioning plate 22 27, the fixed swing arm 26 is equipped with an air chamber seat compression cylinder 28, the piston rod of the air chamber seat positioning pin telescopic cylinder 27 is connected with a height adjusting screw mandrel 29, and the adjustable pressure head 24 is equipped with an adjustable jackscrew 30, One side of the mounting plate is equipped with an air chamber seat positioning mold advancing and retreating cylinder 32, and both sides of the air chamber seat positioning mold advancing and retreating cylinder 32 are symmetrically provided with a retreat position adjusting screw 33, and the mounting plate is symmetrically provided with a small line rail 31, and the air chamber seat The positioning plate 22 is slidably installed on the small line rail 31. The utility model has the advantages of simple structure, novel design, high degree of automation, improving work efficiency while ensuring accuracy, fast, accurate and firm positioning, and easy operation. Convenient, high security, worthy of promotion.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

Embodiment: the left and right air chamber seats 25 are positioned by two telescopic air chamber seat locating pins 23 on the left and right, and the telescopic cylinder 27 with the air chamber seat locating pins drives the fixed swing arm 26, and is compressed on the left and right air chamber seats by the adjustable top wire 30. Chamber seat positioning plate 22, then put the axle 34 that has welded brake base plate 9 into the welding special positioning tooling or equipment, the bearing position of axle 34 contacts the pad iron 7 on the V-shaped mouth on support seat 6, now axle 34 has Approximate positioning, can only rotate and translate left and right. When putting into the tooling, the slope on the rough positioning iron 13 will roughly contact and guide the aspect of the axle 24. When the axle 24 touches the horn 7, the brake of the axle 34 The camshaft hole on the base plate 9 has roughly aligned with the base plate positioning sleeve 8, with an error of plus or minus 2 degrees. Insert the shaft positioning rod 10 into the cam shaft hole of the axle 34, and rotate the brake base plate 9 of the axle 34 up and down to make the shaft positioning rod 10 is inserted into the bottom plate positioning sleeve 8 again, so that the camshaft hole and the bottom plate positioning sleeve 8 are coaxial, and the preliminary preparations are made for the spherical bearing support seat 16 and the camshaft hole to be coaxial, and then the lock shaft cylinder 24 works to drive the right large The carriage 7 moves to the left under the action of the large line rail 2, adjust the adjustable limit seat 11 before making products of different lengths, fix the left large carriage 5, and ensure that the lock shaft cylinder 21 can drive the right When the large carriage 4 moves to the left, the outer end face of the camshaft hole on the brake base plate 9 of the axle 34 can be tightly pressed by the inner end face of the base plate positioning sleeve 8 and the axle 24 can be completely positioned, and then the left and right spherical bearing supports 16 can be passed The positioning pins 17 of the four retractable spherical bearing support seats on the left and right are fixed on the end faces of the left and right positioning flanges 15 through quick clips. On the aspect of the axle shaft 34, spot-weld the left and right spherical bearing support seats 16 and the left and right air chamber seats 25 respectively around four symmetrical welding spots, the tack welding is completed, and the demoulding work is ready. Bearing supporting seat locating pin 17 withdraws from spherical bearing supporting seat locating hole, unclamps left and right quick clips 18, spherical bearing supporting seat 16 is unclamped, left and right air chamber seat locating pin telescopic cylinder 27 works, spherical bearing supporting seat locating pin 17 exits air The positioning hole of the chamber seat 25, the air chamber seat pressing cylinder 28 works, the air chamber seat 25 is released, and then the left and right air chamber seat positioning molds advance and retreat, and the cylinder 32 retreats, the air chamber seat positioning mold leaves the air chamber seat 25, and the shaft locking cylinder 21 back, the axle 34 is loosened, the axle positioning rod 10 is pulled out, the axle 34 is in a free state, the finished axle 34 is hoisted to the full welding workbench, one work flow is over, and the next axle to be positioned for spot welding is hoisted, and the next one is started Workflow, repeating itself.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (5)

1. A special positioning device for axle welding, comprising a cast iron platform (1), characterized in that, both sides of the upper surface of the cast iron platform (1) are symmetrically arranged with large wire rails (2) along the length direction, and the large wire rails (2) There are a plurality of slide blocks (3) installed on the upper slide, and the right large drag plate (4) and the left large drag plate (5) are respectively fixed on the multiple slide blocks (3), and the right large drag plate (4) The positioning mechanism is installed on the large and left pallets (5), and the positioning mechanism includes a support seat (6). A pad iron (7) is arranged on the support seat (6), and an axle shaft is arranged between the two pad irons (7). (34), both sides of the axle (34) are welded with a brake base plate (9), and one end of the brake base plate (9) is provided with a shaft positioning rod (10), and the right big dragger (4) is far away from the left big dragger The side wall of (5) is equipped with lock shaft cylinder (21), and the left large plank (5) is far away from the side wall of right large plank (4) and adjustable limit seat (11) is installed on the side wall, bearing seat (6 ) is installed with a base plate positioning sleeve (8), and the upper surface of the right large carriage (4) and the left large carriage (5) are symmetrically provided with medium-sized line rails (12) on both sides, and the medium-sized line rails (12) slide Sliding plate is installed, and one side on the upper surface of the sliding plate is fixed with thick square positioning iron (13), mounting seat (14) is installed on the sliding plate, and positioning flange (15) is all installed on the adjacent side walls of two mounting seats (14). ), the spherical bearing support seat (16) is installed on the positioning flange (15), the spherical bearing support seat positioning pin (17) is installed on the spherical bearing support seat (16), and the adjacent side of the two mounting seats (14) Quick clips (18) are installed on the wall, spherical bearing support seat positioning pin telescopic cylinders (19) are installed on the side walls of the two mounting seats (14) away from each other, and length adjustment is installed symmetrically on the support seat (6). screw mandrel (20), a mounting plate is welded on the side wall of the cast iron platform (1), and an air chamber seat positioning plate (22) is symmetrically installed on the mounting plate, and an air chamber seat positioning plate (22) is symmetrically installed with an air chamber seat positioning plate (22). The chamber seat (25), the air chamber seat locating pin (23) is installed on the air chamber seat positioning plate (22), the air chamber seat positioning plate (22) is equipped with a plurality of adjustable pressure heads (24), the air chamber seat One side of the positioning plate (22) is equipped with a fixed swing arm (26), the air chamber seat positioning pin telescopic cylinder (27) is installed on the top of the air chamber seat positioning plate (22), and an air chamber is installed on the fixed swing arm (26). The seat compresses the cylinder (28), the piston rod of the air chamber seat locating pin telescopic cylinder (27) is connected with a height adjusting screw mandrel (29), and an adjustable jackscrew (30) is installed on the adjustable pressure head (24). One side of the board is equipped with an air chamber seat positioning mold advancing and retreating cylinder (32), and both sides of the air chamber seat positioning mold advancing and retreating cylinder (32) are symmetrically provided with retreating position adjusting screw rods (33), and the mounting plate is symmetrically arranged with small wire rails (31), the air chamber seat positioning plate (22) is slidably installed on the small line rail (31). 2. A special positioning device for axle welding according to claim 1, characterized in that eight mounting brackets are welded on the bottom side wall of the cast iron platform (1), and the mounting brackets include two mounting rods and a support seat , one end of the installation rod is welded on the support seat, and the other end of the installation rod is welded on the cast iron platform (1). 3. A special positioning device for axle welding according to claim 1, characterized in that four limit blocks are welded on the upper surface of the cast iron platform (1), and the four limit blocks are respectively located on two large Both ends of the track (2). 4. A special positioning device for axle welding according to claim 1, characterized in that, a V-shaped groove is arranged on the support base (6), the pad iron (7) is located in the V-shaped groove, and the V-shaped groove And groove is in contact with the bearing position of axle shaft (34). 5. A special positioning device for axle welding according to claim 1, characterized in that the shaft positioning rod (10) is matched with the telescopic cylinder (19) of the positioning pin of the spherical bearing support seat.