A welding device for a half shaft assembly

Abstract

The present invention relates to a welding device for a half shaft assembly, which comprises a base and a welding device arranged on the base. The base is provided with a slide rail; the welding device includes: a driving mechanism, which includes a driving part and a mounting part. The mounting part includes a tensioning assembly, and the tensioning assembly can be in interference fit with the inner hole of the flange head. The driving part is fixed to the base and can drive the mounting part to drive the flange head to rotate; a driven mechanism, which includes a sliding seat and a top shaft rotatably connected to the sliding seat. The axis of the top shaft is collinear with the rotation axis of the mounting part, and the sliding seat can slide along the slide rail; a lifting mechanism, which is located between the driving mechanism and the driven mechanism and is used for lifting the half shaft sleeve; a welding mechanism, which is used for welding the half shaft sleeve and the flange head. It can simplify the pressing and welding processes of the half shaft assembly, reduce the floor area of the equipment and improve the production efficiency. At the same time, the accuracy can be effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of processing equipment, and particularly relates to a welding device for a half shaft assembly. Background Art

[0002] The half shaft assembly includes a half shaft sleeve and a flange head. Specifically, in the production process, the flange head and the half shaft sleeve need to be press-fitted and then welded and fixed. The existing process is to first perform interference press-fitting on the half shaft sleeve and the flange head, and after reaching the required length and perpendicularity of the drawing, then transport it to the welding station for circumferential welding operation. That is to say, in the existing process, the press-fitting and welding of the half shaft assembly need to be implemented separately, which requires two workstations, occupies a large area of the site and has low production efficiency. Moreover, during the circumferential welding operation, it is necessary to first spot-weld and then circumferentially weld, so the accuracy cannot be guaranteed.

[0003] Therefore, how to simplify the press-fitting and welding processes of the half shaft assembly, reduce the floor area of the equipment and improve the production efficiency, while effectively ensuring the accuracy, is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of the present invention is to provide a welding device for a half shaft assembly, which can simplify the press-fitting and welding processes of the half shaft assembly, reduce the floor area of the equipment and improve the production efficiency, while effectively ensuring the accuracy.

[0005] To solve the above technical problems, the present invention provides a welding device for a half shaft assembly, which includes a base and a welding device provided on the base. The base is provided with a slide rail; the welding device includes: a driving mechanism, including a driving part and a mounting part. The mounting part includes a tensioning assembly, and the tensioning assembly can be in interference fit with the inner hole of the flange head. The driving part is fixed to the base and can drive the mounting part to drive the flange head to rotate; a driven mechanism, including a sliding seat and a top shaft rotatably connected to the sliding seat. The axis of the top shaft is collinear with the rotation axis of the mounting part. The sliding seat can slide along the slide rail; a lifting mechanism, located between the driving mechanism and the driven mechanism, for lifting the half shaft sleeve; a welding mechanism, for welding the half shaft sleeve and the flange head.

[0006] First, place the flange head on the driving mechanism and make it in interference fit with the inner hole of the flange head through the tensioning component, so that the flange head is fixed to the installation part. Then, place the half shaft sleeve on the lifting mechanism and adjust the height of the lifting mechanism so that the axes of the half shaft sleeve, the jack shaft, and the flange head are collinear (wherein, when the tensioning component is in interference fit with the inner hole of the flange head, the axis of the flange head is collinear with the rotation axis of the installation part). At this time, the jack shaft of the driven mechanism can abut against one end of the half shaft sleeve away from the flange head. Then, the sliding seat of the driven mechanism moves along the slide rail towards the driving mechanism, and the half shaft sleeve is pushed towards the driving mechanism by the jack shaft and cooperates with the flange head until the press-fitting is completed.

[0007] Since the tensioning component of the driving mechanism and the jack shaft of the driven mechanism tighten the flange head and the half shaft sleeve from both sides, the axial positions of the two after press-fitting are stable. Then, the driving part drives the installation part to rotate, and drives the press-fitted flange head and half shaft sleeve to rotate together. During the rotation, the welding mechanism can perform circumferential welding operation between the flange head and the half shaft sleeve, thus completing the welding of the flange head and the half shaft sleeve.

[0008] Through this welding equipment, only one working station is required to realize the press-fitting and circumferential welding operations between the flange head and the half shaft sleeve, which can simplify the press-fitting and welding processes of the half shaft assembly, reduce the floor area, and improve the production efficiency. Moreover, when welding the flange head and the half shaft sleeve, the driving mechanism and the driven mechanism can limit the axial positions of the press-fitted flange head and the welded sleeve to be stable from both sides, thus ensuring the product accuracy after welding.

[0009] Optionally, the driving mechanism further includes a clamping part, and the clamping part includes a driving part and a clamping jaw; a positioning surface is further provided at one end of the installation part away from the driving part, and the positioning surface is perpendicular to the rotation axis of the installation part; the driving part can act on the clamping jaw to press the flange head, so that the end surface of the flange head is in close contact with the positioning surface.

[0010] Optionally, the clamping part further includes a connecting part, the connecting part is provided with a first hinge point hinged to the installation part and a second hinge point hinged to the driving part, the clamping jaw is arranged at the end of the connecting part, and the second hinge point and the clamping jaw are respectively located on both sides of the first hinge point; the driving part can act on the second hinge point to make the connecting part rotate around the first hinge point and drive the clamping jaw to press the flange head.

[0011] Optionally, the installation part further includes a housing and a thrust piece fixed to the housing, the driving part can drive the housing to rotate; the tensioning component includes a tensioning shaft and a tensioning sleeve arranged coaxially, the tensioning sleeve is fixed to the outer wall of the housing, and the tensioning shaft can move along its axial direction under the action of the thrust piece.

[0012] Optionally, it further includes a conductive member fixedly connected to the active mechanism. One end of the conductive member can abut against one side of the mounting portion facing the driving portion, and the other end is connected to the ground wire.

[0013] Optionally, the conductive member includes a guide sleeve, a guide rod, and a spring. The guide sleeve is fixed to the first box body. The guide rod passes through the guide sleeve. A contact head is provided at one end of the guide rod, and the other end is connected to the ground wire. And the spring is arranged between the guide rod and the guide sleeve to make the contact head closely adhere to the mounting portion.

[0014] Optionally, the contact head is a copper joint detachably connected to the guide rod.

[0015] Optionally, the lifting mechanism includes a mounting seat, a lifting member, a support seat, and two groups of support members arranged on the support seat. The two groups of support members are arranged in parallel at intervals, and the lifting member is arranged on the mounting seat and can drive the support seat to lift and lower.

[0016] Optionally, the support member is a V-shaped block arranged on the support seat, and a guiding structure arranged in the vertical direction is further provided between the support seat and the mounting seat.

[0017] Optionally, the slide rail is further provided with a limiting member, and the sliding seat can slide along the slide rail until it abuts against the limiting member.

[0018] Optionally, two welding devices are provided on the base, and the driven mechanisms of the two welding devices are arranged oppositely. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the welding equipment for the half shaft assembly provided by the embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of the active mechanism;

[0021] Figure 3 is Figure 2 a cross-sectional view of;

[0022] Figure 4 is a schematic structural diagram of the mounting portion and the clamping portion;

[0023] Figure 5 is Figure 4 a cross-sectional view of;

[0024] Figure 6 is a schematic structural diagram of the driven mechanism;

[0025] Figure 7 is a schematic structural diagram of the lifting mechanism;

[0026] Figure 8 It is a schematic structural diagram of a conductive component;

[0027] Figure 9 is Figure 8 a cross-sectional view of.

[0028] In Figures 1-9 the attached figure, the reference numerals are explained as follows:

[0029] 10 - Base, 101 - Slide rail, 102 - Limiting part, 103 - Hydraulic drive cylinder;

[0030] 20 - Welding device;

[0031] 30 - Half shaft casing;

[0032] 40 - Flange head;

[0033] 1 - Driving mechanism, 11 - First box body, 12 - Driving part, 121 - Motor, 122 - Reducer, 123 - Transmission shaft, 13 - Mounting part, 131 - Tensioning assembly, 1311 - Tensioning shaft, 1312 - Tensioning sleeve, 132 - Positioning flange, 133 - Housing, 134 - Thrust part, 135 - Rotating flange, 136 - Positioning sleeve, 137 - Guide sleeve, 14 - Clamping part, 141 - Driving part, 142 - Pressing jaw, 143 - Connecting part, 144 - First hinge point, 145 - Second hinge point;

[0034] 2 - Driven mechanism, 21 - Sliding seat, 22 - Jacking shaft, 23 - Second box body;

[0035] 3 - Lifting mechanism, 31 - Mounting seat, 32 - Lifting part, 33 - Support seat, 34 - V - block, 35 - Rubber pad, 36 - Guide rod, 37 - Guide hole;

[0036] 4 - Welding mechanism;

[0037] 5 - Conductive component, 51 - Guide sleeve, 52 - Guide rod, 53 - Spring, 54 - Contact head. Specific implementation mode

[0038] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Please refer to Figures 1-9 , Figure 1 which is a schematic structural diagram of the welding equipment for the half shaft assembly provided by the embodiment of the present invention; Figure 2 is a schematic structural diagram of the driving mechanism; Figure 3 is Figure 2 a cross - sectional view of; Figure 4 is a schematic structural diagram of the mounting part and the clamping part; Figure 5 isFigure 4 Cross-sectional view; Figure 6 is a schematic structural diagram of a driven mechanism; Figure 7 is a schematic structural diagram of a lifting mechanism; Figure 8 is a schematic structural diagram of a conductive member; Figure 9 is Figure 8 Cross-sectional view.

[0040] An embodiment of the present invention provides a welding device for a half shaft assembly. As Figure 1 shown, the welding device includes a base 10 and a welding device 20 provided on the base 10. Among them, the base 10 is provided with a slide rail 101, and the welding device 20 includes a driving mechanism 1, a driven mechanism 2, a lifting mechanism 3, and a welding mechanism 4. Specifically, as Figure 2 and Figure 3 shown, the driving mechanism 1 includes a driving part 12 and a mounting part 13. Among them, the driving part 12 is fixedly connected to the base 10 and can drive the mounting part 13 to rotate. The mounting part 13 includes a tensioning assembly 131, and the tensioning assembly 131 can be in interference fit with the inner hole of the flange head 40 and fixed; the driven mechanism 2 includes a sliding seat 21 and a top shaft 22 rotatably connected to the sliding seat 21. The axis of the top shaft 22 is collinear with the rotation axis of the mounting part 13. The sliding seat 21 can slide along the slide rail 101. The lifting mechanism 3 is fixed to the base 10 and is located between the driving mechanism 1 and the driven mechanism 2 for lifting the half shaft sleeve 30; the welding mechanism 4 is fixedly connected to the base 10 for welding the half shaft sleeve 30 and the flange head 40.

[0041] Specifically, first place the flange head 40 on the driving mechanism 1, and make the flange head 40 and the mounting part 13 fixed through the interference fit between the tensioning assembly 131 and the inner hole of the flange head 40; then place the half shaft sleeve 30 on the lifting mechanism 3 and adjust the height of the lifting mechanism 3 so that the axes of the half shaft sleeve 30, the top shaft 22, and the flange head 40 are collinear (wherein, when the tensioning assembly 131 is in interference fit with the inner hole of the flange head 40, the axis of the flange head 40 is collinear with the rotation axis of the mounting part 13). At this time, the top shaft 22 of the driven mechanism 2 can abut against one end of the half shaft sleeve 30 away from the flange head 40. Then, the sliding seat 21 of the driven mechanism 2 moves along the slide rail 101 towards the side of the driving mechanism 1, and the half shaft sleeve 30 is pushed towards the side of the driving mechanism 1 by the top shaft 22 and cooperates with the flange head 40 until the press-fitting is completed.

[0042] Since the tensioning assembly 131 of the driving mechanism 1 and the top shaft 22 of the driven mechanism 2 press the flange head 40 and the half shaft casing 30 from both sides, the axial positions of the two are stable after press-fitting. Then, the driving part 12 drives the mounting part 13 to rotate, and drives the press-fitted flange head 40 and the half shaft casing 30 to rotate together. During the rotation process, the welding mechanism 4 can perform circumferential welding operations between the flange head 40 and the half shaft casing 30, thereby completing the welding of the flange head 40 and the half shaft casing 30.

[0043] That is to say, through the welding equipment provided in this embodiment, only one working station is required to realize the press-fitting and circumferential welding operations between the flange head 40 and the half shaft casing 30, which can simplify the press-fitting and welding processes of the half shaft assembly, reduce the floor area, improve production efficiency, and when welding the flange head 40 and the half shaft casing 30, the driving mechanism 1 and the driven mechanism 2 can limit the axial positions of the press-fitted flange head 40 and the welding casing from both sides to be stable, thereby ensuring the product accuracy after welding.

[0044] In the above embodiment, as Figure 2 and Figure 4 shown, the driving mechanism 1 further includes a clamping part 14, the clamping part 14 includes a driving part 141 and a clamping jaw 142, and a positioning surface is further provided at one end of the mounting part 13 away from the driving part 12, and the positioning surface is perpendicular to the rotation axis of the mounting part 13. The driving part 141 can act on the clamping jaw 142 to press the flange head 40, ensuring that the end face of the flange head 40 can be in close contact with the positioning surface. When the tensioning assembly 131 is in interference fit with the inner hole of the flange head 40, the flange head 40 can be pressed by the clamping jaw 142 so that its end face is in close contact with the positioning surface. Since the positioning surface is perpendicular to the rotation axis of the mounting part 13, when the end face of the flange head 40 is in close contact with the positioning surface, the perpendicularity of the end face of the flange head 40 can be ensured, thereby ensuring the quality of the welded finished product.

[0045] Furthermore, in this embodiment, the clamping part 14 further includes a connecting part 143. The connecting part 143 is provided with a first hinge point 144 hinged to the mounting part 13 and a second hinge point 145 hinged to the driving part 141. The clamping jaw 142 is provided at the end of the connecting part 143, and the second hinge point 145 and the clamping jaw 142 are respectively located on both sides of the first hinge point 144. The driving part 141 can act on the second hinge point 145 to make the connecting part 143 rotate around the first hinge point 144 and drive the clamping jaw 142 to press the flange head 40.

[0046] That is to say, the connecting member 143 is similar to a seesaw structure that rotates around the first hinge point 144. Through the pushing and pulling action of the driving member 141, the pressing claw 142 can be pressed against and separated from the flange head 40. Or, in this embodiment, the driving member 141 can directly act on the pressing claw 142 to press it against the flange head 40. At this time, the driving member 141 is located on the side of the flange head 40 away from the mounting portion 13. When the connecting member 143 with the above seesaw structure is provided, the driving member 141 can be arranged on the same side of the flange head 40, which can make the overall structure more compact and avoid interference during press-fitting or welding, facilitating the arrangement of the driving member 141. Specifically, as Figure 4 shown, the driving member is a driving cylinder or a driving oil cylinder. The driving member is fixed to the mounting portion 13, and the end of the piston rod is connected to the second hinge point 145. In addition, in this embodiment, as Figure 4 shown, the number of the clamping portions 14 is two and they are respectively located on both sides of the mounting portion 13. At this time, the number of the pressing claws 142 is two and they are arranged with their openings facing each other to uniformly press the flange head 40 from both sides so that it can stably adhere to the positioning surface.

[0047] In the above embodiment, the mounting portion 13 includes a housing 133 and a thrust member 134 fixedly connected to the housing 133. The driving portion 12 can drive the housing 133 to rotate; the tensioning assembly 131 includes a tensioning shaft 1311 and a tensioning sleeve 1312 arranged coaxially. The tensioning sleeve 1312 is fixed to the outer wall of the housing 133, and the tensioning shaft 1311 can move along its axial direction under the action of the thrust member 134 and cooperate with the tensioning sleeve 1312. Specifically, when installing the flange head 40, the tensioning sleeve 1312 is placed in the inner hole of the flange head 40. The thrust member 134 pushes the tensioning shaft 1311 to move along its axial direction. The outer wall of the tensioning shaft 1311 and the inner wall of the tensioning sleeve 1312 are respectively provided with tapered surface structures that are adapted to each other. During the movement of the tensioning shaft 1311, it can extrude the tensioning sleeve 1312 outward so that the outer diameter of the tensioning sleeve 1312 becomes larger and has an interference fit with the inner hole of the flange head 40. When it is necessary to disassemble the tensioning sleeve 1312 and the flange head 40, the thrust member 134 can act on the tensioning shaft 1311 to make it move axially in the reverse direction, and the interference fit between the tensioning sleeve 1312 and the inner hole of the flange head 40 can be released, and the operation is relatively convenient.

[0048] Specifically, as Figure 4 and Figure 5As shown in the figure, the mounting portion 13 in this embodiment further includes a rotating flange 135. The rotating flange 135 is provided at the end of the housing 133 and fixed to the driving portion 12. The driving portion 12 can drive the entire mounting portion 13 to rotate through the rotating flange 135. The setting of the rotating flange 135 facilitates the connection between the mounting portion 13 and the driving portion 12. Moreover, the mounting portion 13 further includes a positioning sleeve 136 and a positioning flange 132. The positioning sleeve 136 passes through the housing 133. The outer end of the positioning sleeve 136 is located outside the housing 133 and is fixed to the positioning flange 132 and the housing 133 by bolts. The outer end face of the positioning flange 132 forms the above-mentioned positioning surface. When the positioning flange 132 is not provided, the end face of the housing 133 can be set as the above-mentioned positioning surface. The setting of the positioning flange 132 can, while achieving the fixation between the positioning sleeve 136, the expansion sleeve 1312 and the housing 133, reduce the processing requirements for the positioning surface. That is to say, compared with forming the positioning surface through the end face of the housing 133, the processing technology can be simplified.

[0049] A guiding sleeve 137 is further provided inside the positioning sleeve 136. The above-mentioned expansion shaft 1311 can move along the shaft hole of the guiding sleeve 137. The setting of the guiding sleeve 137 can provide a guiding effect for the movement of the expansion shaft 1311, ensuring the stability of the movement path of the expansion shaft 1311 and enabling it to cooperate with the expansion sleeve 1312. The driving portion 12 includes a first housing 11 and a motor 121, a speed reducer 122, and a transmission shaft 123 that are sequentially connected in transmission. Among them, the transmission shaft 123 is located inside the first housing 11 and the end of the transmission shaft 123 is fixed to the rotating flange 135.

[0050] Bearings are respectively provided between the transmission shaft 123 and the two side walls of the first housing 11. The first housing 11 is fixed to the base. The setting of the first housing 11 and the transmission shaft 123 can improve the load-bearing capacity of the driving mechanism 1. Similarly, the driven mechanism 2 is also provided with a second housing. The sliding seat 21 is arranged at the bottom of the second housing. Moreover, the driven mechanism 2 further includes a rotating shaft arranged inside the second housing. The rotating shaft is coaxially driven with the top shaft, and bearings are also arranged between the rotating shaft and the two side walls of the second housing to ensure the load-bearing strength of the top shaft.

[0051] In the above embodiment, as Figure 3As shown, the welding device further includes a conductive member 5. Specifically, the conductive member 5 is fixedly connected to the driving mechanism 1, and one end of the conductive member 5 can abut against the side of the mounting portion 13 facing the driving portion 12, and the other end is connected to the ground wire. The arrangement of the conductive member 5 can provide a circuit connection for the welding mechanism 4 to ensure a closed circuit. Alternatively, in this embodiment, the conductive member 5 can also be arranged at other positions, such as the driven mechanism 2 or the base 10. When the conductive member 5 is arranged on the driving mechanism 1, during the welding process, when the welding gun of the welding mechanism 4 performs circumferential welding between the half shaft sleeve 30 and the flange head 40, the conductive member 5 is relatively close to the welding position, facilitating the realization of the conductive effect. And because the distance between the welding gun and the conductive member 5 is relatively close, the current path does not pass through the position where slow sparks may occur (such as the position with bearing connection), ensuring the safety of using the device. Specifically, the number of the conductive members 5 can be one or two. When there are two conductive members 5, even if one of them fails, the conductivity can still be ensured.

[0052] Furthermore, as Figure 8 and Figure 9 shown, the conductive member 5 includes a guide sleeve 51, a guide rod 52 and a spring 53. Specifically, the guide sleeve 51 is fixed to the first box body 11 of the driving mechanism 1, the guide rod 52 passes through the guide sleeve 51, and a contact head 54 is provided at one end of the guide rod 52, and the other end is connected to the ground wire. The spring 53 is arranged between the guide rod 52 and the guide sleeve 51 and can act on the guide rod 52 to make the contact head 54 tightly adhere to the mounting portion 13 (specifically, the rotating flange 132 of the mounting portion 13). Since the mounting portion 13 will rotate under the action of the driving portion 12, while the conductive member 5 does not rotate, the rotating flange 132 rotates relative to the contact head 54. Through the action of the spring 53, the contact head 54 tightly adheres to the rotating flange 312, thus ensuring conductivity.

[0053] Specifically, it can be as Figure 9 shown that the spring 53 is located inside the guide sleeve 51 and sleeved outside the guide rod 52. The guide rod 52 and the guide sleeve 51 are respectively provided with abutting structures. The spring 53 is compressed between the abutting structure of the guide rod 52 and the abutting structure of the guide sleeve 51, and the restoring force of the spring 53 can drive the guide rod 52 to move along the guide sleeve 51 and make the contact head 54 tightly adhere to the mounting portion 13, thus ensuring good conductivity. Alternatively, in this embodiment, the spring 53 can also be arranged inside the first box body 11, and one end of the spring 53 is connected to the inner end of the guide sleeve 51, and the other end is connected to the guide rod 52. The spring 53 is in a stretched state and makes the contact head 54 of the guide rod 52 abut against the mounting portion 13.

[0054] Further, in this embodiment, the contact head 54 refers to a copper joint detachably connected to the guide rod 52. Copper has good electrical conductivity, and since the material of copper is relatively soft, when the copper joint abuts against the mounting seat 31, it will not cause damage to the mounting seat 31. At the same time, since the connection between the copper joint and the guide rod 52 is detachable, it is convenient to replace the copper joint when it is damaged.

[0055] In the above embodiment, as Figure 7 shown, the lifting mechanism 3 includes a mounting seat 31, a lifting member 32, a support seat 33, and two sets of support members provided on the support seat 33. Among them, the two sets of support members are arranged side by side at intervals, and the support members are adapted to the half shaft sleeve 30. The lifting member 32 is provided on the mounting seat 31 and can lift the support seat 33. That is to say, the lifting member 32 can lift the two sets of support members through the support seat 33 at the same time. After the half shaft sleeve 30 is placed above the two sets of support members, the height of the half shaft sleeve 30 can be adjusted by the action of the lifting member 32 to make it collinear with the rotation axis of the mounting portion 13 and the axis of the top shaft 22, and then the pressing operation is carried out. After the pressing is completed, the lifting member 32 descends and drives the support seat 33 and the support members to descend. At this time, the position of the half shaft sleeve 30 remains unchanged, and the mounting portion 13 can be driven by the driving portion 12 to drive the half shaft sleeve 30 to rotate, and the welding operation is completed. Specifically, the lifting member 32 can be selected from hydraulic cylinders, air cylinders, jacks, etc.

[0056] Further, as Figure 7 shown, the support member is a V-shaped block 34 provided on the support seat 33. Or, the support member can also be set as a bracket provided on the support seat 33, and the top of the bracket is provided with a groove structure, which can also be used to support the half shaft sleeve 30. When the support member is set as the structure of the V-shaped block 34, the support member can be applicable to various half shaft sleeves 30 of different sizes, and the applicability is better. Further, a rubber pad 35 is provided on the inner wall of the V-shaped block 34 to ensure that the half shaft sleeve 30 placed on the V-shaped block 34 will not be damaged. And, in this embodiment, a guiding structure is also provided between the support seat 33 and the mounting seat 31 in the vertical direction. Specifically, as Figure 7 shown, the guiding structure is a guiding rod 36. The support seat 33 is provided with a guiding hole 37. One end of the guiding rod 36 is fixed to the mounting seat 31, and the other end can pass through the guiding hole 37 and move along the guiding hole 37. Or, it can also be that the mounting seat 31 is provided with a guiding hole 37, one end of the guiding rod 36 is fixed to the support seat 33, and the other end can move relative to the mounting seat 31 along the guiding hole 37, and no specific limitation is made here. As Figure 7 shown, the number of the guiding rods 36 is four. Or, the guiding rod 36 can also be set to two or three.

[0057] Alternatively, in this embodiment, the guiding structure can also be set as a structure including a slideway and a slider. Among them, the slideway is arranged in the vertical direction, the slider can slide along the slideway, the slideway is fixedly connected to the mounting base 31, and the slider is arranged on the support base 33. When the guiding structure is set as the guiding rod 36, the overall structure can be simplified.

[0058] In the above embodiment, as Figure 1 shown, the slide rail 101 is further provided with a limiting member 102. When the sliding seat 21 of the driven mechanism 2 can slide along the slide rail 101 to abut against the limiting member 102, it indicates that at this time, the half shaft sleeve 30 has been press-fitted with the flange head 40. The setting of the limiting member 102 can play a role in hard limiting the movement of the driven mechanism 2, ensuring that the lengths of the half shaft welding assemblies after press-fitting are consistent and meeting the precision requirements.

[0059] In the above embodiment, as Figure 1 shown, the base 10 is provided with two welding devices 20, and the driven mechanisms 2 of the two welding devices 20 are arranged oppositely. That is to say, this welding equipment integrates two sets of welding devices 20, and can perform press-fitting and welding operations on two half shaft assemblies simultaneously. Specifically, one welding device 20 is used for press-fitting and welding the left half shaft assembly, and the other welding device 20 is used for press-fitting and welding the right half shaft assembly. Or the two welding devices 20 can also be the same, both for press-fitting and welding the left half shaft assembly or both for press-fitting and welding the right half shaft assembly. Having two welding devices 20 on one base 10 can effectively improve production efficiency. In addition, the base 10 is further provided with two hydraulic drive cylinders 103, which are respectively used to drive the sliding seats 21 of the two driven mechanisms 2 to slide along the slide rail 101, and the base 10 can be provided with one slide rail 101 or two slide rails 101.

[0060] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A welding device for a half - shaft assembly, characterized in that, it includes a base (10) and a welding device (20) provided on the base (10), and the base (10) is provided with a slide rail (101); The welding device (20) includes: A driving mechanism (1), including a driving part (12) and a mounting part (13). The mounting part (13) includes a tensioning assembly (131). The tensioning assembly (131) can be in interference fit with the inner hole of the flange head (40) of the half - shaft assembly. The driving part (12) is fixed to the base (10) and can drive the mounting part (13) to drive the flange head (40) to rotate; A driven mechanism (2), including a sliding seat (21) and a top shaft (22) rotatably connected to the sliding seat (21). The axis of the top shaft (22) is collinear with the rotation axis of the mounting part (13), and the sliding seat (21) can slide along the slide rail (101); A lifting mechanism (3), located between the driving mechanism (1) and the driven mechanism (2), for lifting the half - shaft sleeve (30); A welding mechanism (4), for welding the half - shaft sleeve (30) and the flange head (40); The driving mechanism (1) further includes a clamping part (14), and the clamping part (14) includes a driving member (141) and a clamping jaw (142); One end of the mounting part (13) away from the driving part (12) is further provided with a positioning surface, and the positioning surface is perpendicular to the rotation axis of the mounting part (13); The driving member (141) can act on the clamping jaw (142) to press the flange head (40) so that the end face of the flange head (40) is in close contact with the positioning surface; The clamping part (14) further includes a connecting member (143). The connecting member (143) is provided with a first hinge point (144) hinged to the mounting part (13) and a second hinge point (145) hinged to the driving member (141). The clamping jaw (142) is provided at the end of the connecting member (143), and the second hinge point (145) and the clamping jaw (142) are respectively located on both sides of the first hinge point (144); The driving member (141) can act on the second hinge point (145) to make the connecting member (143) rotate around the first hinge point (144) and drive the clamping jaw (142) to press the flange head (40); The mounting part (13) further includes a housing (133) and a thrust member (134) fixed to the housing (133). The driving part (12) can drive the housing (133) to rotate; The tensioning assembly (131) includes a tensioning shaft (1311) and a tensioning sleeve (1312) arranged coaxially. The tensioning sleeve (1312) is fixed to the outer wall of the housing (133), and the tensioning shaft (1311) can move axially under the action of the thrust member (134).

2. The welding device for a half - shaft assembly according to claim 1, characterized in that, It further includes a conductive member (5) fixedly connected to the active mechanism (1). One end of the conductive member (5) can abut against the side of the mounting portion (13) facing the driving portion (12), and the other end is connected to a ground wire.

3. The welding device for a half shaft assembly according to claim 2, characterized in that the conductive member (5) includes a guide sleeve (51), a guide rod (52) and a spring (53). The guide sleeve (51) is fixed to the first box body (11) of the active mechanism (1). The guide rod (52) passes through the guide sleeve (51). One end of the guide rod (52) is provided with a contact head (54), and the other end is connected to the ground wire. And the spring (53) is arranged between the guide rod (52) and the guide sleeve (51) to make the contact head (54) closely adhere to the mounting portion (13).

4. The welding device for a half shaft assembly according to claim 3, characterized in that the contact head (54) is a copper joint detachably connected to the guide rod (52).

5. The welding device for a half shaft assembly according to claim 1, characterized in that the lifting mechanism (3) includes a mounting seat (31), a lifting member (32), a support seat (33) and two groups of support members provided on the support seat (33). The two groups of support members are arranged side by side at intervals. The lifting member (32) is arranged on the mounting seat (31) and can drive the support seat (33) to lift and lower.

6. The welding device for a half shaft assembly according to claim 5, characterized in that the support member is a V-shaped block (34) provided on the support seat (33), and a guiding structure arranged in the vertical direction is further provided between the support seat (33) and the mounting seat (31).

7. The welding device for a half shaft assembly according to claim 1, characterized in that the slide rail (101) is further provided with a limiting member (102), and the sliding seat (21) can slide along the slide rail (101) until it abuts against the limiting member (102).

8. The welding device for a half shaft assembly according to claim 1, characterized in that the base (10) is provided with two of the welding devices (20), and the driven mechanisms (2) of the two welding devices (20) are arranged oppositely.

Images