Welding and positioning tool for door and window frame of entrance of cab of high-speed passenger train

Abstract

The utility model discloses a welding and positioning tool for a door and window frame of an entrance of a cab of a high-speed passenger train. The welding and positioning tool comprises a mounting plate, a hoop piece and four positioning blocks, a fixing assembly for mounting the positioning blocks is arranged on the mounting plate, and the four positioning blocks are correspondingly and slidably arranged at the two ends of the fixing assembly; the hoop piece is arranged outside the positioning block in a surrounding mode and used for positioning the outer circle of the window frame profile. A plurality of adjusting assemblies are installed on the fixing assembly and used for adjusting the distance between the two positioning blocks at the same end, and the two positioning blocks at the same end are linearly pushed towards the sides away from each other through the adjusting assemblies so that the inner circle of the window frame profile can be positioned. The positioning tool can improve the positioning precision of the window frame and prevent deviation, so that the welding quality is ensured.

Description

Technical Field

[0001] This utility model relates to a welding positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab, belonging to the field of welding technology. Background Technology

[0002] Currently, high-speed railway passenger cars generally use aluminum alloy doors. The driver's cab entrance door has an aluminum alloy window frame, which needs to be welded using processed aluminum profiles. Positioning fixtures are required during welding to ensure dimensional accuracy, but existing fixtures are not precise enough in positioning the window frame, making it easy for deviation to occur during welding. Utility Model Content

[0003] The purpose of this utility model is to provide a welding positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab, which can improve the positioning accuracy of the window frame, prevent deviation, and ensure welding quality.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab includes a mounting plate, a ring clamp, and four positioning blocks; the mounting plate is provided with a fixing component for installing the positioning blocks, and the four positioning blocks are correspondingly and slidably disposed at both ends of the fixing component;

[0006] The ring fitting is placed around the positioning block and is used to position the outer circle of the window frame profile;

[0007] Multiple sets of adjustment components are installed on the fixed component to adjust the distance between two positioning blocks located at the same end. The two positioning blocks located at the same end are pushed in a straight line toward the opposite side to position the inner circle of the window frame profile.

[0008] Preferably, the fixing assembly includes a base plate fixed to the mounting plate, a plurality of vertical and parallel longitudinal plates arranged on the base plate, and a horizontal plate arranged on the top of the longitudinal plates.

[0009] Four positioning blocks are distributed at the top four corners of the horizontal plate. Multiple waist-shaped holes are provided on the horizontal plate, and the waist-shaped holes are distributed in the direction that makes the two positioning blocks at the same end move closer or further apart.

[0010] The positioning block is equipped with a pin that inserts into the waist-shaped hole on the horizontal plate.

[0011] Preferably, the positioning fixture further includes several T-shaped clamping seats correspondingly disposed at both ends of the horizontal plate;

[0012] A positioning groove is provided at the top center of the horizontal plate, extending along the end direction of the horizontal plate. The bottom end of the clamping seat is embedded in the positioning groove and fixedly connected to the horizontal plate. The two ends of the top plate of the clamping seat are pressed against the top of the positioning block on the corresponding side.

[0013] Preferably, the top plate of the clamping seat also has waist-shaped holes at both ends, and the waist-shaped holes on the clamping seat correspond to the waist-shaped holes on the horizontal plate. The pin passes through the positioning block and its top end passes through the waist-shaped hole on the clamping seat.

[0014] Preferably, each adjustment assembly includes a waist-shaped key, a straight rod that passes through the waist-shaped key and has a threaded bottom, and a handle horizontally disposed on the top of the straight rod; wherein the straight rod is fixedly connected to the waist-shaped key;

[0015] The adjustment assembly is located between two positioning blocks at the same end of the horizontal plate and in the positioning groove. The threaded post at the bottom of the straight rod is threadedly connected to the horizontal plate body and the mounting plate located below the positioning groove. The bottom surface of the waist-shaped key abuts against the top surface of the horizontal plate on both sides of the positioning groove, and the end abuts against the positioning block on the corresponding side.

[0016] Preferably, the ring member includes two symmetrical semicircular rings with openings facing each other. The ends of the two semicircular rings that are close to each other extend outward to form a fixing part and are fixed together by a bolt assembly.

[0017] Preferably, a pin is provided at the fixing part where the two semicircular rings are close to each other, passing through the corresponding two fixing parts.

[0018] The beneficial effects of this utility model are as follows:

[0019] First, the outer circle of the window frame profile is positioned using the ring clamp. Then, the two positioning blocks located at the same end are pushed in a straight line towards each other using the adjustment component to position the inner circle of the window frame profile. This improves the positioning effect of the window frame profile, prevents the window frame profile from deviating during welding, and ensures the welding quality. Attached Figure Description

[0020] Figure 1 A three-dimensional schematic diagram of the positioning fixture;

[0021] Figure 2 This is a schematic diagram of the positioning block.

[0022] Figure 3 This is a structural diagram of the base plate, longitudinal plates, and transverse plates.

[0023] Figure 4 A schematic diagram of the structure of the adjustment component;

[0024] Figure 5 This is a structural diagram of the window frame profile.

[0025] The meanings of the main reference numerals in the figure are as follows:

[0026] 1. Mounting plate, 2. Positioning block, 3. Base plate, 4. Vertical plate, 5. Horizontal plate, 6. Pin, 7. Pressing seat, 8. Semi-circular ring, 9. Pin shaft, 10. Bolt assembly, 11. Waist-shaped key, 12. Straight rod, 13. Handle, 14. Window frame profile. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] This embodiment provides a welding positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab, such as... Figure 1-5 As shown, it includes a mounting plate 1, a ring clamp, and four positioning blocks 2; the mounting plate 1 is made of carbon steel, with a painted surface, and has threaded holes and pin holes. The mounting plate 1 is provided with a fixing assembly for mounting the positioning blocks 2, and the four positioning blocks 2 are correspondingly and slidably set at both ends of the fixing assembly.

[0029] Specifically, the fixing components include a base plate 3 fixed to the mounting plate 1, two vertical and parallel longitudinal plates 4 arranged on the base plate 3, and a horizontal plate 5 arranged on the top of the longitudinal plates 4 (the base plate 3, longitudinal plates 4 and horizontal plate 5 are all made of carbon steel and welded together); the base plate 3 and the horizontal plate 5 are arranged perpendicularly to each other in the horizontal direction, and the base plate 3 is provided with pin holes corresponding to the pin holes on the mounting plate 1, and they are connected by cylindrical pins.

[0030] The four positioning blocks 2 are also made of carbon steel and are distributed at the top four corners of the horizontal plate 5. The positioning blocks 2 are welded with pins 6 that pass through the positioning blocks 2 and have arcs that match the inner circle of the window frame profile 14. Multiple waist-shaped holes are opened on the horizontal plate 5 and the waist-shaped holes are distributed in the direction that makes the two positioning blocks 2 at the same end move closer or further apart. The pins 6 on the positioning blocks 2 are inserted into the waist-shaped holes of the horizontal plate 5.

[0031] Furthermore, the positioning fixture also includes several T-shaped clamping seats 7 (made of carbon steel with painted surface) corresponding to both ends of the horizontal plate 5; a positioning groove extending along the end direction of the horizontal plate 5 is opened at the top center of the horizontal plate 5, and the bottom end of the clamping seat 7 is embedded in the positioning groove, with a through hole in the middle for fixing it to the horizontal plate 5 with fasteners. The top plates of the clamping seats 7 are pressed against the tops of the positioning blocks 2 on the corresponding sides. The top plates of the clamping seats 7 also have oblong holes at both ends, and the oblong holes on the clamping seats 7 correspond to the oblong holes on the horizontal plate 5, with the top of the pin 6 passing through the oblong holes on the clamping seats 7.

[0032] The above structure allows the positioning block 2 to move only along the extension direction of the waist-shaped hole, and the displacement distance of the positioning block 2 is limited by the pin 6.

[0033] The ring clamp is set around the positioning block 2 and is used to position the outer circle of the window frame profile 14. The ring clamp includes two symmetrical semicircular ring clamps 8 (carbon steel material, powder-coated surface, and shape designed according to the shape of the window frame) with their openings facing each other. The ends of the two semicircular ring clamps 8 that are close to each other extend outward to form a fixing part. They are positioned by a pin 9 that passes through the corresponding fixing part and fixed by a bolt assembly 10.

[0034] Multiple sets of adjustment components are also installed on the fixed assembly to adjust the distance between two positioning blocks 2 located at the same end. The two positioning blocks 2 located at the same end are pushed linearly towards each other to position the inner circle of the window frame profile 14. Each set of adjustment components includes a waist-shaped key 11, a straight rod 12 that passes through the waist-shaped key 11 and has a threaded post at the bottom, and a handle 13 that is horizontally set on the top of the straight rod 12. The handle 13 is set parallel to the waist-shaped key 11, and the straight rod 12 is fixedly connected to the waist-shaped key 11. The adjustment component is set between the two positioning blocks 2 located at the same end of the horizontal plate 5 and located in the positioning groove. The threaded post at the bottom of the straight rod 12 is threadedly connected to the horizontal plate 5 and the mounting plate 1 located below the positioning groove. The bottom surface of the waist-shaped key 11 abuts against the top surface of the horizontal plate 5 on both sides of the positioning groove, and the end abuts against the positioning block 2 on the corresponding side.

[0035] During welding, first place the positioning fixture on the welding table, loosen the bolt assembly 10 used to fix the two semicircular rings 8, and turn the waist-shaped key 11 to be parallel to the long side of the horizontal plate 5 (i.e., the extension direction of the positioning groove). At this time, the pin 6 is located in the middle of the waist-shaped hole of the clamping seat 7. Then, place the processed aluminum profile of the driver's cab entrance door and window frame into the semicircular rings 8, and then tighten the bolt assembly 10 so that the semicircular rings 8 fit against the outer end face of the window frame profile 14, thereby achieving the positioning of the outer circle of the window frame profile 14.

[0036] Then tighten the two straight rods 12, with the handle 13 perpendicular to the long side of the horizontal plate 5. At this point, the pin 6 is away from the center of the clamping seat 7, and the positioning blocks 2 on both sides of the waist-shaped key 11 expand outward under the action of the waist-shaped key 11, pressing the inner end face of the window frame profile 14 to achieve positioning of the inner circle of the window frame profile 14. Finally, weld the window frame profile 14.

[0037] The above description is only a preferred embodiment of this utility model patent. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model patent, and these improvements and modifications should also be considered within the scope of protection of this utility model patent.

Claims

1. A welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab, characterized in that, It includes a mounting plate, a ring clamp, and four positioning blocks; the mounting plate is equipped with a fixing component for mounting the positioning blocks, and the four positioning blocks are correspondingly and slidably disposed at both ends of the fixing component; The ring fitting is placed around the positioning block and is used to position the outer circle of the window frame profile; Multiple sets of adjustment components are installed on the fixed component to adjust the distance between two positioning blocks located at the same end. The two positioning blocks located at the same end are pushed in a straight line toward the opposite side to position the inner circle of the window frame profile.

2. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 1, characterized in that, The fixing components include a base plate fixed to the mounting plate, several vertical and parallel longitudinal plates arranged on the base plate, and a horizontal plate arranged on the top of the longitudinal plates. Four positioning blocks are distributed at the top four corners of the horizontal plate. Multiple waist-shaped holes are provided on the horizontal plate, and the waist-shaped holes are distributed in the direction that makes the two positioning blocks at the same end move closer or further apart. The positioning block is equipped with a pin that inserts into the waist-shaped hole on the horizontal plate.

3. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 2, characterized in that, The positioning fixture also includes several T-shaped clamping seats that are correspondingly set at both ends of the horizontal plate; A positioning groove is provided at the top center of the horizontal plate, extending along the end direction of the horizontal plate. The bottom end of the clamping seat is embedded in the positioning groove and fixedly connected to the horizontal plate. The two ends of the top plate of the clamping seat are pressed against the top of the positioning block on the corresponding side.

4. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 3, characterized in that, The top plate of the clamping seat also has waist-shaped holes at both ends, and the waist-shaped holes on the clamping seat correspond to the waist-shaped holes on the horizontal plate. The pin passes through the positioning block and its top end passes through the waist-shaped hole on the clamping seat.

5. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 3, characterized in that, Each adjustment assembly includes a waist-shaped key, a straight rod that passes through the waist-shaped key and has a threaded post at the bottom, and a handle that is horizontally set on the top of the straight rod; wherein, the straight rod is fixedly connected to the waist-shaped key; The adjustment assembly is located between two positioning blocks at the same end of the horizontal plate and in the positioning groove. The threaded post at the bottom of the straight rod is threadedly connected to the horizontal plate body and the mounting plate located below the positioning groove. The bottom surface of the waist-shaped key abuts against the top surface of the horizontal plate on both sides of the positioning groove, and the end abuts against the positioning block on the corresponding side.

6. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 1, characterized in that, The ring clamp includes two symmetrical semicircular ring clamps with openings facing each other. The ends of the two semicircular ring clamps that are close to each other extend outward to form a fixing part, and are fixed together by a bolt assembly.

7. The welding and positioning fixture for the entrance door and window frame of a high-speed railway passenger car driver's cab according to claim 6, characterized in that, A pin is also provided at the fixed part where the two semi-circular rings are close to each other, passing through the corresponding two fixed parts.

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