Auxiliary welding tool for sidecar frame

Abstract

The invention discloses an auxiliary welding tool for a sidecar frame. The auxiliary welding tool for the sidecar frame comprises a first positioning mechanism used for positioning a first steel pipe, a second positioning mechanism used for positioning a second steel pipe, a third positioning mechanism used for positioning a third rod end and a fourth positioning mechanism used for positioning a protective steel pipe. The driving screw is used for driving the second positioning mechanism and the third positioning mechanism, the power mechanism is used for driving the driving screw, the power mechanism is connected with the driving screw, the first positioning mechanism, the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism are arranged on the base in a sliding mode, and the fourth positioning mechanism is connected with the third positioning mechanism. The driving screw is provided with a first threaded section and a second threaded section, the first threaded section is in threaded connection with the third positioning mechanism, the second threaded section is in threaded connection with the second positioning mechanism, and the thread pitch of the first threaded section is smaller than that of the second threaded section. According to the auxiliary welding tool for the sidecar frame, the welding positions of all steel pipes of the sidecar frame can be aligned at a time.

Description

Technical Field

[0001] The present invention relates to the technical field of side frame processing, and particularly to an auxiliary welding tooling for a side frame. Background Art

[0002] Side frames are usually formed by welding and positioning multiple steel pipes. During welding, only one steel pipe can be aligned with another and then welded, and then the next steel pipe is welded. Before each welding, it is necessary to find and align the position of the steel pipe, which increases the welding time of a single side frame and reduces the welding efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an auxiliary welding tooling for a side frame that can quickly align the welding position.

[0004] To solve the above problems, the present invention provides an auxiliary welding tooling for a side frame. The auxiliary welding tooling for a side frame includes a first positioning mechanism for positioning a first steel pipe, a second positioning mechanism for positioning a second steel pipe, a third positioning mechanism for positioning a third rod end, a fourth positioning mechanism for positioning a protective steel pipe, a driving screw for driving the second positioning mechanism and the third positioning mechanism to move simultaneously at different speeds, and a power mechanism for driving the driving screw. The power mechanism is connected to the driving screw. The first positioning mechanism is installed on a base. The second positioning mechanism, the third positioning mechanism, and the fourth positioning mechanism are slidably arranged on the base. The fourth positioning mechanism is connected to the third positioning mechanism. The driving screw is simultaneously screwed to the second positioning mechanism and the third positioning mechanism. The driving screw has a first thread section and a second thread section. The first thread section is screwed to the third positioning mechanism, and the second thread section is screwed to the second positioning mechanism. The pitch of the first thread section is smaller than the pitch of the second thread section.

[0005] Further, the first positioning mechanism includes two first positioning seats for positioning both ends of the first steel pipe. The two first positioning seats are spaced apart and installed on the base. The first positioning seat is provided with a first positioning groove, and the first positioning groove has at least one arc-shaped groove.

[0006] Further, it further includes a support positioning seat for supporting the middle part of the first steel pipe. The driving screw is rotatably arranged on the support positioning seat.

[0007] Further, the cross-section of the first positioning groove is semi-circular.

[0008] Further, the second positioning mechanism includes two second positioning seats for positioning the second steel pipe and a side connecting plate for connecting the two second positioning seats. The two second positioning seats are slidably spaced on the base. Each second positioning seat is provided with a second positioning groove. The second positioning seat is spaced from the first positioning mechanism. The second positioning groove has at least one arc-shaped groove.

[0009] Further, the cross-section of the second positioning groove is semi-circular.

[0010] Further, the third positioning mechanism includes two third positioning seats for supporting different third steel pipes and an intermediate connecting plate for connecting the two third positioning seats. The two third positioning seats are slidably spaced on the base. The length of the third positioning seat is less than the distance between the first positioning seat and the second positioning seat. Each third positioning seat is provided with a third positioning groove.

[0011] Further, the fourth positioning mechanism includes a fourth positioning seat for supporting the end of the protective rod and a connecting rod for connecting with the third positioning mechanism. The top surface of the fourth positioning seat is provided with a fourth positioning groove. The fourth positioning groove is U-shaped.

[0012] Further, the base is provided with sliding rails adapted to the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism; or the base is provided with a chute, and the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism are slidably arranged in the chute.

[0013] Further, the base is further provided with a support plate for supporting the driving screw.

[0014] An auxiliary welding tool for a side frame of the present invention uses the first positioning mechanism, the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism to pre-align the first steel pipe, the second steel pipe, the third steel pipe and the protective steel pipe, and then drives the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism to move through the driving screw, so that the first steel pipe is attached to the second steel pipe, the third steel pipe is attached to the first steel pipe and the second steel pipe, and the protective steel pipe is attached to the first steel pipe and the second steel pipe, aligning and attaching the first steel pipe, the second steel pipe, the third steel pipe and the protective steel pipe at one time, without aligning and attaching them one by one and then welding, improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a preferred embodiment of an auxiliary welding tool for a side frame of the present invention.

[0016] Figure 2 is a top view of an auxiliary welding tool for a side frame of the present invention.

[0017] Figure 3It is a schematic structural diagram when the first steel pipe, the second steel pipe, the third steel pipe and the protective steel pipe are placed on an auxiliary welding tool for a side frame of the present invention.

[0018] Figure 4 It is a schematic structural diagram when the first steel pipe, the second steel pipe, the third steel pipe and the protective steel pipe are welded on an auxiliary welding tool for a side frame of the present invention.

[0019] The meanings of the reference numerals in the drawings are as follows:

[0020] The first positioning mechanism 1, the first positioning seat 11, the first positioning groove 111, the support positioning seat 12, the support positioning groove 121, the second positioning mechanism 2, the second positioning seat 21, the second positioning groove 221, the side connecting plate 22, the third positioning mechanism 3, the third positioning seat 31, the third positioning groove 311, the intermediate connecting plate 32, the fourth positioning mechanism 4, the fourth positioning seat 41, the fourth positioning groove 411, the connecting rod 42, the driving screw 51, the power mechanism 52, the base 6, the support plate 61, the slide rail 7, the first steel pipe 81, the second steel pipe 82, the third steel pipe 83, the protective steel pipe 84. Specific embodiments

[0021] The present invention will be further described below with reference to the drawings.

[0022] For the sake of easy understanding, the composition of the side frame is described. The side frame is welded by the first steel pipe 81, the second steel pipe 82, the third steel pipe 83 and the protective steel pipe 84. Both ends of the first steel pipe 81 and the second steel pipe 82 are bent, and the two ends of the first steel pipe 81 and the second steel pipe 82 are respectively aligned and welded. Both ends of the third steel pipe 83 are welded to the first steel pipe 81 and the second steel pipe 82. Since both ends of the third steel pipe 83 need to be fitted to the first steel pipe 81 and the second steel pipe 82, the profiles of both ends of the third steel pipe 83 are semi-circular. Both ends of the protective steel pipe 84 are bent and then welded to the first steel pipe 81 and the second steel pipe 82.

[0023] Such as Figure 1 and Figure 2As shown in the figure, a preferred embodiment of an auxiliary welding tooling for a side frame of the present invention includes a first positioning mechanism 1, a second positioning mechanism 2, a third positioning mechanism 3, a fourth positioning mechanism 4, a driving screw 51, a power mechanism 52 and a base 6. The first positioning mechanism 1, the second positioning mechanism 2, the third positioning mechanism 3 and the fourth positioning mechanism 4 are all slidably mounted on the base 6. The first positioning mechanism 1 is used to position the first steel pipe 81, the second positioning mechanism 2 is used to position the second steel pipe 82, the third positioning mechanism 3 is used to position the third steel pipe 83, and the fourth positioning mechanism 4 is used to position the protective steel pipe 84. The front end of the driving screw 51 is connected to the power mechanism 52, and the power mechanism 52 is used to drive the driving screw 51 to rotate. The rear end of the driving screw 51 is rotatably arranged on the first positioning mechanism 1. The second positioning mechanism 2 and the third positioning mechanism 3 are screwed onto the driving screw 51, and the driving screw 51 is used to drive the second positioning mechanism 2 and the third positioning mechanism 3 to move. Since the profiles at both ends of the third positioning pipe are semi-circular, when the first steel pipe 81, the second steel pipe 82 and the third steel pipe 83 are respectively placed on the first positioning mechanism 1, the second positioning mechanism 2 and the third positioning mechanism 3, there is a gap between both ends of the third steel pipe 83 and the first steel pipe 81 and the second steel pipe 82. When placing the third steel pipe 83, it will not touch the first steel pipe 81 and the second steel pipe 82. In this way, it is convenient to place the third steel pipe 83, effectively avoiding the deformation of the profiles at both ends of the third steel pipe 83 due to collision. When welding is required, the power mechanism 52 is used to drive the driving screw 51 to rotate, and the driving screw 51 drives the second positioning mechanism 2, the third positioning mechanism 3 and the fourth positioning mechanism 4 to move simultaneously towards the first positioning mechanism 1 until they move to a predetermined position. At this time, welding can be carried out. The power mechanism 52 generally adopts a motor and a reducer. Of course, a low-speed motor or other power equipment that can generate rotational drive can also be used.

[0024] A slide rail 7 cooperating with the second positioning mechanism 2, the third positioning mechanism 3 and the fourth positioning mechanism 4 is arranged on the base 6. The second positioning mechanism 2, the third positioning mechanism 3 and the fourth positioning mechanism 4 are slidably arranged on the slide rail 7. In another embodiment, a chute can also be arranged on the base 6, and the second positioning mechanism 2, the third positioning mechanism 3 and the fourth positioning mechanism 4 are slidably arranged in the chute.

[0025] The first positioning mechanism 1 includes a first positioning seat 11 and a support positioning seat 12. There are two first positioning seats 11, and the two first positioning seats 11 are located on the left and right sides of the support positioning seat 12. The first positioning seat 11 and the support positioning seat 12 are spaced and installed on the slide rail 7 on the base 6. The two first positioning seats 11 and the support positioning seat 12 are spaced apart to ensure sufficient space for welding with the third steel pipe 83. The first steel pipe 81 is placed on the first positioning seat 11 and the support seat. A first positioning groove 111 is provided on the first positioning seat 11, and a support positioning groove 121 is provided on the support positioning seat 12. The two ends of the first steel pipe 81 are placed in the first positioning groove 111, and the middle part of the first steel pipe is placed in the support positioning groove 121. The first positioning groove 111 is an arc-shaped groove as a whole, which is adapted to the bent part of the first steel pipe 81, so as to avoid the rotation of the first steel pipe 81 and ensure that the first steel pipe 81 is always fixed during the welding process, improving the welding accuracy; in other embodiments, the first positioning groove 111 can also be composed of an arc segment and a straight segment. The cross-section of the first positioning groove 111 is semi-circular, so as to effectively prevent the first steel pipe 81 from moving out of the first positioning groove 111 in the direction perpendicular to its axis, and at the same time, it is convenient to place the first steel pipe 81 into the first positioning groove 111 from above. The rear end of the driving screw 51 is rotatably arranged on the support positioning seat 12. The support positioning seat 12 can not only support the first steel pipe 81 but also support the driving screw 51 at the same time, so that the rear end of the driving screw 51 is also supported to avoid the bending of the driving screw 51. In other embodiments, it is also possible not to provide a support positioning seat, or a seat can be separately provided to support the driving screw 51 only.

[0026] The second positioning mechanism 2 includes two second positioning seats 21 and a side connecting plate 22 for connecting the two second positioning seats 21. The two second positioning seats 21 are spaced apart and installed on the slide rail 7 on the base 6 to ensure sufficient space for welding with the third steel pipe 83. Each second positioning seat 21 is provided with a second positioning groove 221. The two ends of the second steel pipe 82 are placed into the second positioning groove 221. The second positioning seat 21 and the first positioning seat 11 are spaced apart to ensure sufficient space for welding with the first steel pipe 81. The driving screw 51 is screwed to the side connecting plate 22. Thus, when the driving screw 51 rotates, it can drive the side connecting plate 22 to move along its axial direction, and further drive the two second positioning seats 21 to move. The overall shape of the second positioning groove 221 is an arc-shaped groove, which is adapted to the bent part of the second steel pipe 82. In this way, the second steel pipe 82 can be prevented from rotating, ensuring that the second steel pipe 82 remains stationary during the welding process and improving the welding accuracy. In other embodiments, the second positioning groove 221 can also be composed of an arc segment and a straight segment. The cross-section of the second positioning groove 221 is semi-circular, which can effectively prevent the second steel pipe 82 from moving out of the second positioning groove 221 in the direction perpendicular to its axis, and at the same time, it is convenient to place the second steel pipe 82 into the second positioning groove 221 from above.

[0027] The third positioning mechanism 3 includes two third positioning seats 31 and an intermediate connecting plate 32 for connecting the two third positioning seats 31. Each third positioning seat 31 supports a third steel pipe 83. The two third positioning seats 31 are spaced apart and installed on the slide rail 7 on the base 6. The length of the third positioning seat 31 is less than the distance between the first positioning seat 11 and the second positioning seat 21 to ensure sufficient space for welding with the first steel pipe 81 and the second steel pipe 82. The driving screw 51 is screwed to the side connecting plate 22. Thus, when the driving screw 51 rotates, it can drive the intermediate connecting plate 32 to move along its axial direction, and further drive the two third positioning seats 31 to move. Each third positioning seat 31 is provided with a third positioning groove 311. The third positioning seat 31 has a certain length, which can support the third steel pipe 83 without causing the third steel pipe 83 to tip over. Of course, in other embodiments, the third positioning seat 31 can also be formed by combining at least two support plates 61 with support notches, and the two ends of the corresponding intermediate connecting plate 32 will be connected to the corresponding two support plates 61 at the same time. The cross-section of the third positioning groove 311 is semi-circular, which can effectively prevent the third steel pipe 83 from moving out of the third positioning groove 311 in the direction perpendicular to its axis, and at the same time, it is convenient to place the third steel pipe 83 into the third positioning groove 311 from above.

[0028] The fourth positioning mechanism 4 includes a fourth positioning seat 41 and a connecting rod 42. The fourth positioning seat 41 is slidably arranged on the slide rail 7. The two ends of the connecting rod 42 are respectively connected to the fourth positioning seat 41 and the second positioning seat 21 of the second positioning mechanism 2. In this way, when driving the second positioning mechanism 2, the fourth positioning seat 41 can be driven to move synchronously, which can reduce the driving mechanism and lower the cost. A fourth positioning groove 411 is arranged on the top surface of the fourth positioning seat 41. The fourth positioning groove 411 is U-shaped, so that the bent part of the protective steel pipe 84 can be supported, and the protective steel pipe 84 can be stably supported and the rotation of the protective steel pipe 84 can be avoided. The cross-section of the fourth positioning groove 411 is semi-circular, so that the protective steel pipe 84 can be effectively prevented from moving out of the fourth positioning groove 411 in the direction perpendicular to its axis, and at the same time, it is convenient to place the fourth steel pipe into the fourth positioning groove 411 from above.

[0029] The driving screw 51 has a first thread section and a second thread section. The first thread section is used for screwing with the intermediate connecting plate 32 of the third positioning mechanism 3, and the second thread section is used for screwing with the side connecting plate 22 of the second positioning mechanism 2. The pitch of the first thread section is smaller than that of the second thread section. In this way, the moving speed of the second positioning mechanism 2 can be greater than that of the third positioning mechanism 3, ensuring that when the driving screw 51 stops rotating, the second positioning mechanism 2 and the third positioning mechanism 3 can reach the predetermined position at the same time, that is, the second steel pipe 82 can be attached to the first steel pipe 81, and the third steel pipe 83 is attached to the first steel pipe 81 and the second steel pipe 82 at the same time. It is convenient for processing and manufacturing, and the first thread section and the second thread section are arranged at intervals.

[0030] A support plate 61 for supporting the front end of the driving screw 51 is further arranged on the base 6 to prevent the driving screw 51 from bending. The driving screw 51 is usually installed on the support plate 61 by a bearing. It should be known that there is no thread designed at the position where the bearing is installed. The support plate 61 is also used to limit the moving distance of the side connecting plate 22.

[0031] As Figure 3 and Figure 4As shown in the figure, when in use, first place the first steel pipe 81, the second steel pipe 82, the third steel pipe 83 and the protective steel pipe 84 on the first positioning seat 11, the second positioning seat 21, the third positioning seat 31 and the fourth positioning seat 41 respectively. Since the first positioning seat 11, the second positioning seat 21, the third positioning seat 31 and the fourth positioning seat 41 are correspondingly arranged, at this time, the welding positions of the first steel pipe 81 and the second steel pipe 82 are aligned, the welding positions of the third steel pipe 83 with the first steel pipe 81 and the second steel pipe 82 are aligned, and the protective steel pipe 84 is aligned with the first steel pipe 81 and the second steel pipe 82; then the power mechanism 52 is started to drive the driving screw 51 to rotate, driving the side connecting plate 22 and the middle connecting plate 32 to move simultaneously. Further, the side connecting plate 22 drives the two second positioning seats 21 to move synchronously, and the middle connecting plate 32 drives the two third positioning seats 31 to move synchronously. One of the third positioning seats 31 drives the fourth positioning seat 41 to move synchronously until the second positioning seat 21, the third positioning seat 31 and the fourth positioning seat 41 move to the predetermined positions simultaneously, thus completing the fitting of the first steel pipe 81 and the second steel pipe 82, and the fitting of the third steel pipe 83 with the first steel pipe 81 and the second steel pipe 82 at one time, and then welding can be carried out. Since the first steel pipe 81, the second steel pipe 82, the third steel pipe 83 and the protective steel pipe 84 always remain aligned during the movement of the first positioning seat 11, the second positioning seat 21, the third positioning seat 31 and the fourth positioning seat 41, welding can be carried out after fitting. The first steel pipe 81, the second steel pipe 82, the third steel pipe 83 and the protective steel pipe 84 can be aligned and fitted at one time, which is convenient for welding, without the need to align and fit them one by one and then weld, improving the welding efficiency. At the same time, during the welding process, due to the limitation of the first positioning seat 11, the second positioning seat 21 and the fourth positioning seat 41, the positions of the first steel pipe 81, the second steel pipe 82 and the protective steel pipe 84 will not change. At the same time, due to the limitation of the first steel pipe 81 and the third steel pipe 83, the position of the third steel pipe 83 will not change either, ensuring the welding accuracy.

[0032] The above is only the embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure made by using the content of the specification and drawings of the present invention, directly or indirectly applied to other related technical fields, is equally within the patent protection scope of the present invention.

Claims

1. A side frame auxiliary welding tool, characterized in that: It includes a first positioning mechanism for positioning a first steel pipe, a second positioning mechanism for positioning a second steel pipe, a third positioning mechanism for positioning a third rod end, a fourth positioning mechanism for positioning a protective steel pipe, a driving screw for driving the second positioning mechanism and the third positioning mechanism to move simultaneously at different speeds, and a power mechanism for driving the driving screw, the power mechanism is connected to the driving screw, the first positioning mechanism is installed on a base, the second positioning mechanism, the third positioning mechanism, and the fourth positioning mechanism are slidably arranged on the base, the fourth positioning mechanism is connected to the third positioning mechanism, the driving screw is screwed to the second positioning mechanism and the third positioning mechanism at the same time, the driving screw has a first thread segment and a second thread segment, the first thread segment is screwed to the third positioning mechanism, the second thread segment is screwed to the second positioning mechanism, and the pitch of the first thread segment is smaller than the pitch of the second thread segment.

2. The side frame auxiliary welding tool as claimed in claim 1, characterized in that: The first positioning mechanism includes two first positioning seats for positioning two ends of the first steel pipe, the two first positioning seats are installed on the base at intervals, the first positioning seats are provided with a first positioning groove, and the first positioning groove has at least one arc-shaped groove.

3. The sidecar frame auxiliary welding tool as claimed in claim 2, characterized in that: It also includes a support and positioning seat, which is used to support the middle part of the first steel pipe, and the driving screw is rotatably arranged on the support and positioning seat.

4. The side frame auxiliary welding tool as claimed in claim 2, characterized in that: The cross section of the first positioning groove is semicircular.

5. The sidecar frame auxiliary welding tool as claimed in claim 1, characterized in that: The second positioning mechanism includes two second positioning seats for positioning the second steel pipe and a side connecting plate for connecting the two second positioning seats. The two second positioning seats slide on the base at intervals. Each of the second positioning seats is provided with a second positioning groove. The second positioning seat is spaced apart from the first positioning mechanism, and the second positioning groove has at least one arc-shaped groove.

6. A sidecar frame auxiliary welding tool as claimed in claim 5, characterized in that: The cross section of the second positioning groove is semicircular.

7. The sidecar frame auxiliary welding tool as claimed in claim 1, characterized in that: The third positioning mechanism includes two third positioning seats for supporting different third steel pipes and an intermediate connecting plate for connecting the two third positioning seats. The two third positioning seats slide on the base at intervals. The length of the third positioning seat is smaller than the distance between the first positioning seat and the second positioning seat. A third positioning groove is provided on each of the third positioning seats.

8. The sidecar frame auxiliary welding tool as claimed in claim 7, characterized in that: The fourth positioning mechanism comprises a fourth positioning seat supporting the end of the protection rod and a connecting rod for connecting with the third positioning mechanism. A fourth positioning groove is arranged on the top surface of the fourth positioning seat, and the fourth positioning groove is U-shaped.

9. The sidecar frame auxiliary welding tool as claimed in claim 1, characterized in that: The base is provided with slide rails adapted to the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism; or the base is provided with slide grooves, and the second positioning mechanism, the third positioning mechanism and the fourth positioning mechanism are slidably arranged in the slide grooves.

10. The sidecar frame auxiliary welding tool as claimed in claim 1, characterized in that: The base is also provided with a support plate for supporting the driving screw rod.

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