阅读说明：本技术 用于电机吊座的焊接机定位工装 (Welding machine positioning tool for motor hanging seat ) 是由 刘伟红 李万君 董泽民 刘大明 于 2021-08-23 设计创作，主要内容包括：用于电机吊座的焊接机定位工装属于轨道车辆转向架电机吊座的焊接辅助定位工装领域,其包括底座两个上盖板圆弧面定位块、两个矩形板外缘止挡块、矩形板单侧定位块、两个上盖板悬臂压块和矩形板单侧止挡块。本发明焊接机定位工装的底座可用于同焊接机器人的变位机连接并作为自动焊接的标准参考平面,从而利用业内公知的焊接机器人机加工坐标系完成对工件的三维定位和加工；本发明可在避免繁重复杂的测绘和记录作业、保证焊接操作质量和作业的安全的同时,还能大幅提高焊接精度,降低返修率,节约人力成本和工时,降低生产成本。(A welding machine location frock for motor hanger seat belongs to rail vehicle bogie motor hanger seat's welding assistance-localization real-time frock field, and it includes two upper cover plate arc surface locating pieces of base, two rectangular plate outer fringe backstop pieces, rectangular plate unilateral locating piece, two upper cover plate cantilever briquetting and rectangular plate unilateral backstop piece. The base of the welding machine positioning tool can be used for being connected with a positioner of a welding robot and used as a standard reference plane for automatic welding, so that the three-dimensional positioning and machining of a workpiece are completed by utilizing a machining coordinate system of the welding robot known in the industry; the invention can avoid heavy and complicated mapping and recording operation, ensure the welding operation quality and the operation safety, greatly improve the welding precision, reduce the repair rate, save labor cost and working time and reduce the production cost.)

1. A welding machine location frock for motor hanger bracket, its characterized in that: the tool comprises a base (1), two upper cover plate arc surface positioning blocks (2), two rectangular plate outer edge stop blocks (3), a rectangular plate single-side positioning block (4), two upper cover plate cantilever press blocks (5) and a rectangular plate single-side stop block (6), wherein the two upper cover plate arc surface positioning blocks (2), the two rectangular plate outer edge stop blocks (3) and the rectangular plate single-side stop block (6) are fixedly connected with the upper end face of the base (1) respectively, and the rectangular plate single-side positioning block (4) and the two upper cover plate cantilever press blocks (5) are fixedly connected with the upper end face of the base (1) in a detachable mode;

the connecting line of the geometric centers of the two upper cover plate arc surface positioning blocks (2), the connecting line of the geometric centers of the two rectangular plate outer edge stop blocks (3), the connecting line of the geometric centers of the two upper cover plate cantilever pressing blocks (5), and the connecting line of the geometric centers of the rectangular plate single-side positioning block (4) and the rectangular plate single-side stop block (6) are all parallel to an x axis on the base (1); two upper cover plate arc surface positioning blocks (2) and two upper cover plate cantilever pressing blocks (5) are located on the same side of the x axis, and a rectangular plate single-side positioning block (4), a rectangular plate single-side stop block (6) and two rectangular plate outer edge stop blocks (3) are located on the other side of the x axis.

2. The welding machine positioning tool for the motor hanging seat as claimed in claim 1, characterized in that: the upper cover plate arc surface positioning block (2) is a rectangular block, an arc groove (2-1) is formed in the upper end face of the upper cover plate, and the curved surface shape of the arc groove (2-1) is completely matched and consistent with the curved surface shape of the upper cover plate arc surface (7-2-2); the arc-shaped groove (2-1) and the front side wall (2-2) of the cover plate arc surface positioning block (2) are intersected on a horizontal side line (K), the horizontal side line (K) is parallel to the upper end face of the base (1), and the distance value H1 from the horizontal side line (K) to the base (1) is equal to the thickness value H of the clamping strip (7-1).

3. The welding machine positioning tool for the motor hanging seat as claimed in claim 2, characterized in that: the upper cover plate cantilever pressing block (5) comprises a first stud-nut fastener (5-1) and a first L-shaped right-angle pressing block (5-2), the upper end face of the first L-shaped right-angle pressing block (5-2) is provided with a first vertical through groove (5-2-1), and the width of the groove is larger than the diameter of a stud in the first stud-nut fastener (5-1) and smaller than the outer diameter of a first nut in the first stud-nut fastener (5-1); a first nut in the first stud-nut fastener (5-1) penetrates through the first vertical through groove (5-2-1) and is in threaded connection with a corresponding first mounting screw hole on the base (1); a first nut in the first stud-nut fastener (5-1) is in threaded connection with a first stud thereof to form a screw mechanism together, and the lower end face of the first nut is in abutting connection with the upper end face of the notch of the first vertical through groove (5-2-1); the lateral opening direction of the first vertical through groove (5-2-1) is parallel to the y axis.

4. The welding machine positioning tool for the motor hanging seat as claimed in claim 3, characterized in that: the structure of the rectangular plate single-side positioning block (4) is completely the same as that of the upper cover plate cantilever pressing block (5), the rectangular plate single-side positioning block comprises a second stud and nut fastener (4-1) and a second L-shaped right-angle pressing block (4-2), a second vertical through groove (4-2-1) is formed in the upper end face of the second L-shaped right-angle pressing block (4-2), the groove width of the second vertical through groove is larger than the diameter of a stud in the second stud and nut fastener (4-1) and smaller than the outer diameter of a second nut in the second stud and nut fastener (4-1); a second nut in the second stud-nut fastener (4-1) passes through the second vertical through groove (4-2-1) and is in threaded connection with a corresponding second mounting screw hole on the base (1); a second nut in the second stud-nut fastener (4-1) is in threaded connection with a second stud thereof to form a screw mechanism together, and the lower end face of the second nut is in abutting connection with the upper end face of the notch of the second vertical through groove (4-2-1); the lateral opening direction of the second vertical through groove (4-2-1) is parallel to the x axis.

5. The welding machine positioning tool for the motor hanging seat as claimed in claim 4, characterized in that: the minimum distance value between the rectangular plate single-side positioning block (4) and the rectangular plate single-side stop block (6) is 110% L1; the minimum distance value between the two rectangular plate outer edge stop blocks (3) and the two upper cover plate cantilever pressing blocks (5) is 110 percent D1; the vertical height values of the rectangular plate single-side stop blocks (6) are all larger than 120% of the thickness value h of the clamping strip (7-1).

Technical Field

The invention belongs to the field of auxiliary welding positioning tools for motor hanging seats of bogie trucks of railway vehicles, and particularly relates to a positioning tool for a welding machine of a motor hanging seat.

Background

As shown in figures 1 to 6, a certain type of motor hanging seat device 7 on a railway passenger car bogie is formed by welding a clamping strip 7-1, an upper cover plate 7-2, a panel 7-3 and three rib plates 7-4 with arc-shaped gaps in an assembling manner. Wherein, the panel 7-3 butted with the motor is vertically arranged, the upper end surface of the panel is vertically welded with the lower end surface of the upper cover plate 7-2, and the right angle formed by the rear end surface of the panel 7-3 and the lower end surface of the upper cover plate 7-2 is fixedly connected by three mutually parallel rib plates 7-4 through strengthening welding; the clamping strip 7-1 is parallel to the intersection line of the rear end face of the panel 7-3 and the upper cover plate 7-2 and is welded at the upper end of the upper cover plate 7-2. The rib plate 7-4 is coaxially welded with the tubular cross beam on the bogie through the arc notch. The upper cover plate 7-2 comprises an integrally formed rectangular plate 7-2-1 and an upper cover plate arc surface 7-2-2 tangent to the end surface of the rectangular plate, and two sides of the upper cover plate arc surface 7-2-2 respectively extend leftwards and rightwards and are narrowed into wing-shaped cantilevers 7-2-3. The length of the rectangular plate 7-2-1 is L1, and the overall width of the upper cover plate 7-2 is D1.

However, because the contour line of the rib plate 7-4 is extremely irregular, the length of the rectangular plate 7-2-1 is greater than that of the panel 7-3, and the wing-shaped cantilever 7-2-3 is of a thinner cylindrical structure, all three of the cantilever cannot be used as a positioning reference datum plane; the clamping strip 7-1 with the thickness of h enables the upper end face of the rectangular plate 7-2-1 not to be used as a positioning reference datum plane for pairing positioning before welding, so that the existing motor hanging seat device is difficult to clamp and pair and position during welding pairing due to the lack of a proper butt joint tool and a deflection disc of an automatic welding robot, meanwhile, the traditional manual assembly welding positioning method is also prone to the problems of repeated measurement, poor positioning accuracy, high repair rate, low efficiency, easy occurrence of workpiece or personnel collision injury and the like, manpower and material resources are seriously wasted, and the production cost cannot be reduced.

Disclosure of Invention

The bogie motor hanger bracket aims at solving the problems that the contour line and the end face of the existing bogie motor hanger bracket are extremely irregular, and the whole structure lacks a reference end face used for positioning, so that the bogie motor hanger bracket is difficult to assemble during welding, and the automatic assembly and positioning welding cannot be realized due to the lack of a proper butt joint tool for clamping with a displacement disc of an automatic welding robot; meanwhile, the traditional manual assembly welding positioning method also faces the technical problems that turnover welding wastes time and labor, repeated measurement is needed, positioning accuracy is poor, repair rate is high, efficiency is low, manpower and material resources are seriously wasted, production cost is increased, and operators cannot guarantee welding operation quality and operation safety.

The technical scheme adopted by the invention for solving the technical problem is as follows:

the welding machine positioning tool for the motor hanging seat comprises two upper cover plate arc surface positioning blocks of a base, two rectangular plate outer edge stop blocks, a rectangular plate single-side positioning block, two upper cover plate cantilever press blocks and a rectangular plate single-side stop block, wherein the two upper cover plate arc surface positioning blocks, the two rectangular plate outer edge stop blocks and the rectangular plate single-side stop block are fixedly connected with the upper end face of the base respectively, and the rectangular plate single-side positioning block and the two upper cover plate cantilever press blocks are fixedly connected with the upper end face of the base in a detachable mode;

the connecting line of the geometric centers of the two upper cover plate arc surface positioning blocks, the connecting line of the geometric centers of the two rectangular plate outer edge stop blocks, the connecting line of the geometric centers of the two upper cover plate cantilever pressing blocks, and the connecting line of the geometric centers of the rectangular plate single-side positioning block and the rectangular plate single-side stop block are parallel to the x axis on the base; two upper cover plate arc surface positioning blocks and two upper cover plate cantilever pressing blocks are located on the same side of the x axis, and the rectangular plate single-side positioning block, the rectangular plate single-side stop block and the two rectangular plate outer edge stop blocks are located on the other side of the x axis.

The upper cover plate arc surface positioning block is a rectangular block, an arc groove is arranged on the upper end surface of the upper cover plate arc surface positioning block, and the curved surface shape of the arc groove is completely matched and consistent with the curved surface shape of the upper cover plate arc surface; the arc-shaped groove and the front side wall of the cover plate arc-shaped surface positioning block are intersected on a horizontal edge line, the horizontal edge line is parallel to the upper end face of the base, and the distance value H1 from the horizontal edge line to the base is equal to the thickness value H of the clamping strip.

The upper cover plate cantilever pressing block comprises a first stud-nut fastener and a first L-shaped right-angle pressing block, a first vertical through groove is formed in the upper end face of the first L-shaped right-angle pressing block, and the width of the groove is larger than the diameter of a stud in the first stud-nut fastener and smaller than the outer diameter of a first nut in the first stud-nut fastener; a first nut in the first stud-nut fastener penetrates through the first vertical through groove and is in threaded connection with a corresponding first mounting screw hole on the base; a first nut in the first stud-nut fastener is in threaded connection with a first stud thereof to form a screw mechanism together, and the lower end surface of the first nut is in abutting connection with the upper end surface of the notch of the first vertical through groove; the lateral opening direction of the first vertical through groove is parallel to the y axis.

The structure of the rectangular plate single-side positioning block is completely the same as that of the upper cover plate cantilever pressing block, the rectangular plate single-side positioning block comprises a second stud-nut fastener and a second L-shaped right-angle pressing block, a second vertical through groove is formed in the upper end face of the second L-shaped right-angle pressing block, the width of the groove is larger than the diameter of a stud in the second stud-nut fastener, and is smaller than the outer diameter of a second nut in the second stud-nut fastener; a second nut in the second stud nut fastener penetrates through the second vertical through groove and is in threaded connection with a corresponding second mounting screw hole on the base; a second nut in the second stud-nut fastener is in threaded connection with a second stud thereof to form a screw mechanism together, and the lower end surface of the second nut is in abutting connection with the upper end surface of the notch of the second vertical through groove; the lateral opening direction of the second vertical through groove is parallel to the x axis.

The minimum distance value between the rectangular plate single-side positioning block and the rectangular plate single-side stop block is 110% L1; the minimum distance value between the two rectangular plate outer edge stop blocks and the two upper cover plate cantilever pressing blocks is 110 percent D1; the vertical height values of the single-side stop blocks of the rectangular plate are all larger than 120% of the thickness value h of the clamping strip.

The invention has the beneficial effects that: the base of the welding machine positioning tool for the motor hanging seat can be used for being connected with a positioner of a welding robot and used as a standard reference plane for automatic welding, so that a welding robot machining coordinate system known in the industry is utilized to complete three-dimensional positioning and machining of a workpiece. The two upper cover plate arc surface positioning blocks, the two rectangular plate outer edge stop blocks and the rectangular plate single-side stop block are fixedly connected with the upper end face of the base respectively according to given positions and intervals, and the rectangular plate single-side positioning block and the two upper cover plate cantilever pressing blocks are fixedly connected with the upper end face of the base in a detachable mode; the curved surface shape of the arc-shaped groove on the upper end surface of the cover plate arc surface positioning block is completely matched with the curved surface shape of the upper cover plate arc surface, so that the upper cover plate arc surface can be supported and positioned. The structure is combined for use, so that the upper cover plate primary combined weldment with the clamping strips can be accurately positioned and reliably fixed with the base in a reversed posture.

By inputting the coordinates of the positioning tool into the three-dimensional coordinates of the welding robot, the welding robot can quickly and accurately complete the subsequent assembly welding operation of the panel and the rib plate on the basis of the positioning of the upper cover plate, so that the high-efficiency welding of the bogie motor hanging seat is realized by fully utilizing the excellent characteristics of good welding quality, high positioning accuracy and high operation of the welding robot, and the product consistency of the motor hanging seat is maintained. And while avoiding heavy and complicated survey and drawing and recording operation, guaranteeing welding operation quality and the safety of operation, can also improve the welding precision by a wide margin, reduce the rate of reprocessing, practice thrift human cost and man-hour, reduction in production cost.

In addition, the welding machine positioning tool for the motor hanging seat has the advantages of simple and practical structure, convenience in operation, low cost, convenience in popularization and the like.

Drawings

Fig. 1 is a schematic perspective view of a conventional motor hanger apparatus;

fig. 2 is a perspective view of a conventional motor hanger apparatus from another perspective;

FIG. 3 is a right side view of FIG. 1;

FIG. 4 is a schematic perspective view of a conventional upper cover plate;

FIG. 5 is a top view of FIG. 4

FIG. 6 is a partial enlarged view of portion I of FIG. 3;

FIG. 7 is a perspective view of the positioning tooling of the welding machine for the motor hanger of the present invention;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a schematic diagram of an application of the positioning tool of the welding machine for the motor hanging seat of the invention;

FIG. 10 is a top view of FIG. 9;

FIG. 11 is a left side view of FIG. 9;

fig. 12 is a partial enlarged view of a portion II in fig. 11.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 7 to 12, the welding machine positioning tool for the motor hanging seat of the invention comprises a base 1, two upper cover plate arc surface positioning blocks 2, two rectangular plate outer edge stop blocks 3, a rectangular plate single side positioning block 4, two upper cover plate cantilever press blocks 5 and a rectangular plate single side stop block 6, wherein the two upper cover plate arc surface positioning blocks 2, the two rectangular plate outer edge stop blocks 3 and the rectangular plate single side stop block 6 are fixedly connected with the upper end surface of the base 1 respectively, and the rectangular plate single side positioning block 4 and the two upper cover plate cantilever press blocks 5 are fixedly connected with the upper end surface of the base 1 in a detachable manner;

the connecting line of the geometric centers of the two upper cover plate arc surface positioning blocks 2, the connecting line of the geometric centers of the two rectangular plate outer edge stop blocks 3, the connecting line of the geometric centers of the two upper cover plate cantilever pressing blocks 5 and the connecting line of the geometric centers of the rectangular plate single-side positioning block 4 and the rectangular plate single-side stop block 6 are parallel to the x axis on the base 1; two upper cover plate arc surface positioning blocks 2 and two upper cover plate cantilever pressing blocks 5 are located on the same side of the x axis, and a rectangular plate single-side positioning block 4, a rectangular plate single-side stopping block 6 and two rectangular plate outer edge stopping blocks 3 are located on the other side of the x axis.

The upper cover plate arc surface positioning block 2 is a rectangular block, an arc groove 2-1 is arranged on the upper end surface of the upper cover plate arc surface positioning block, and the curved surface shape of the arc groove 2-1 is completely matched and consistent with the curved surface shape of the upper cover plate arc surface 7-2-2; the arc-shaped groove 2-1 and the front side wall 2-2 of the cover plate arc surface positioning block 2 are intersected on a horizontal edge line K, the horizontal edge line K is parallel to the upper end face of the base 1, and the distance value H1 from the horizontal edge line K to the base 1 is equal to the thickness value H of the clamping strip 7-1.

The upper cover plate cantilever pressing block 5 comprises a first stud-nut fastener 5-1 and a first L-shaped right-angle pressing block 5-2, the upper end face of the first L-shaped right-angle pressing block 5-2 is provided with a first vertical through groove 5-2-1, and the groove width of the groove is larger than the diameter of a stud in the first stud-nut fastener 5-1 and smaller than the outer diameter of a first nut in the first stud-nut fastener 5-1; a first nut in the first stud-nut fastener 5-1 penetrates through the first vertical through groove 5-2-1 and is in threaded connection with a corresponding first mounting screw hole on the base 1; a first nut in the first stud-nut fastener 5-1 is in threaded connection with a first stud thereof to form a screw mechanism together, and the lower end face of the first nut is in abutting connection with the upper end face of the notch of the first vertical through groove 5-2-1; the lateral opening direction of the first vertical through groove 5-2-1 is parallel to the y axis.

The structure of the rectangular plate single-side positioning block 4 is completely the same as that of the upper cover plate cantilever pressing block 5, the rectangular plate single-side positioning block 4 comprises a second stud-nut fastener 4-1 and a second L-shaped right-angle pressing block 4-2, the upper end face of the second L-shaped right-angle pressing block 4-2 is provided with a second vertical through groove 4-2-1, the groove width of the second vertical through groove is larger than the diameter of a stud in the second stud-nut fastener 4-1 and smaller than the outer diameter of a second nut in the second stud-nut fastener 4-1; a second nut in the second stud-nut fastener 4-1 penetrates through the second vertical through groove 4-2-1 and is in threaded connection with a corresponding second mounting screw hole on the base 1; a second nut in the second stud-nut fastener 4-1 is in threaded connection with a second stud thereof to form a screw mechanism together, and the lower end face of the second nut is in abutting connection with the upper end face of the notch of the second vertical through groove 4-2-1; the lateral opening direction of the second vertical through groove 4-2-1 is parallel to the x axis.

The minimum distance value between the rectangular plate single-side positioning block 4 and the rectangular plate single-side stop block 6 is 110% L1; the minimum distance value between the two rectangular plate outer edge stop blocks 3 and the two upper cover plate cantilever pressing blocks 5 is 110 percent D1; the vertical height values of the rectangular plate single-side stop blocks 6 are all larger than 120% of the thickness value h of the clamping strip 7-1.

When the positioning tool for the welding machine of the motor hanging seat is specifically applied, as shown in fig. 9 to 12, the clamping strip 7-1 and the upper cover plate 7-2 are manually welded in advance at a position and a posture which accord with the drawing theory, so that the clamping strip 7-1 and the upper cover plate 7-2 become an upper cover plate primary combined welding part with the clamping strip, and then the primary combined welding part is placed on the positioning tool in a reversed installation posture, so that the clamping strip 7-1 is positioned between the rectangular plate single-side positioning block 4 and the rectangular plate single-side stop block 6, the outer end face of the clamping strip 7-1 is attached to the base 1, and the arc face 7-2-2 of the upper cover plate is completely attached to the curved surface of the arc-shaped groove 2-1. Then, the outer side wall of the notch of the second vertical through groove 4-2-1 is utilized to push a short edge of the rectangular plate 7-2-1 along the x-axis direction, the stop block 6 on the single side of the rectangular plate is attached to the short plate on the other side of the rectangular plate 7-2-1, and the outer side wall of the notch of the first vertical through groove 5-2-1 is utilized to push the longest edge of the circular arc surface 7-2-2 of the upper cover plate along the y-axis direction, so that the long edges of the rectangular plate 7-2-1 are respectively connected with the stop blocks 3 on the outer edges of the two rectangular plates in an abutting mode.

Then, the lower end faces of two first vertical through grooves 5-2-1 are correspondingly pressed on the highest edge of a curved surface which is upward warped by a corresponding cantilever 7-2-3, finally, each first nut and each second nut are respectively screwed, and a rectangular plate single-side positioning block 4 and two upper cover plate cantilever pressing blocks 5 based on the lead screw principle are respectively fixed, so that an upper cover plate combined welding piece with a clamping strip is completely fixedly connected with the base 1 in a reversed posture, the base 1 can be used as a machining reference datum plane of a subsequent assembly panel 7-3 and three rib plates 7-4 with arc notches, the base 1 is connected and fixed with a positioner of a welding robot, the coordinates of the positioning tool are recorded into the three-dimensional coordinates of the welding robot, and the subsequent assembly welding of the panel 7-3 and the rib plate 7-4 is quickly and accurately finished on the basis of the upper cover plate 7-2 by using the welding robot And (6) operating.