CN110102880B - Clamping and positioning mechanism for gear shifting shaft assembly and laser welding device - Google Patents
Clamping and positioning mechanism for gear shifting shaft assembly and laser welding device Download PDFInfo
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- CN110102880B CN110102880B CN201910390810.5A CN201910390810A CN110102880B CN 110102880 B CN110102880 B CN 110102880B CN 201910390810 A CN201910390810 A CN 201910390810A CN 110102880 B CN110102880 B CN 110102880B
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- assembly
- gear shifting
- positioning
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/0869—Devices involving movement of the laser head in at least one axial direction
- B23K26/0876—Devices involving movement of the laser head in at least one axial direction in at least two axial directions
- B23K26/0884—Devices involving movement of the laser head in at least one axial direction in at least two axial directions in at least in three axial directions, e.g. manipulators, robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention provides a clamping and positioning mechanism of a gear shifting shaft assembly and a laser welding device, wherein the clamping and positioning mechanism comprises: the clamping and positioning mechanism comprises an assembly base, an assembly mandrel and a positioning mechanism; the assembly mandrel and the positioning mechanism are arranged on the assembly base; the assembly mandrel comprises a body, a shaft hole and an error-proofing structure arranged on the body; the shaft hole is arranged on the body in a penetrating way; the positioning mechanism comprises a first positioning component and a second positioning component; the gear shifting shaft is inserted in the shaft hole, and the arrangement position of the gear shifting seat on the assembly mandrel is limited by the mistake-proof structure. The clamping and positioning mechanism for the gear shifting shaft assembly can realize rapid clamping and positioning of components of the gear shifting shaft assembly, and the error-proof structure arranged by the clamping and positioning mechanism can prevent the components of the gear shifting shaft assembly from being assembled wrongly to the maximum extent, thereby being beneficial to realizing automatic rotary laser welding of the components of the gear shifting shaft assembly and improving the production efficiency and welding qualification rate of the gear shifting shaft assembly.
Description
Technical Field
The invention belongs to the field of equipment processing, and particularly relates to a clamping and positioning mechanism for a gear shifting shaft assembly and a laser welding device.
Background
The gear shifting shaft assembly is an important part of the automobile gearbox. The existing gear shifting shaft assembly is formed by welding a plurality of parts in stages, and has the disadvantages of complex process, low production efficiency and high production cost. Meanwhile, the parts used for welding the gear shifting shaft assembly are symmetrical in structure and similar in shape, so that splicing errors occur during assembly, and the processing difficulty and cost of the gear shifting shaft assembly are increased.
Disclosure of Invention
The invention aims to provide a clamping and positioning mechanism of a gear shifting shaft assembly and a laser welding device, and aims to solve the problems that the gear shifting shaft assembly is difficult to process and high in processing cost in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the clamping and positioning mechanism for the gear shifting shaft assembly is provided, the gear shifting shaft assembly comprises a gear shifting shaft, a shifting seat, a supporting plate and a gear shifting swing rod, and the clamping and positioning mechanism comprises an assembly base, an assembly mandrel and a positioning mechanism; the assembly mandrel and the positioning mechanism are arranged on the assembly base; the assembly mandrel comprises a body, a shaft hole and an error-proofing structure arranged on the body; the shaft hole is arranged on the body in a penetrating way;
the positioning mechanism comprises a first positioning component and a second positioning component;
the gear shifting shaft is inserted into the shaft hole, and the arrangement direction of the gear shifting seat on the assembly mandrel is limited by the mistake-proofing structure;
when welding seams between the gear shifting shaft and the support plate are welded, the support plate sleeved on the gear shifting shaft is pressed on the top surface of the body by the first positioning assembly;
when welding seams between the supporting plate and the gear shifting swing rod and between the gear shifting swing rod and the gear shifting shaft are welded, the gear shifting swing rod sleeved on the gear shifting shaft is pressed on the supporting plate by the second positioning assembly.
Further, the mistake proofing structure comprises a positioning step arranged on the periphery of the body; the bottom surface of the transposition seat is abutted against the positioning step.
Furthermore, the mistake proofing structure also comprises a hole site arranged on the positioning step, and the mistake proofing structure is meshed with the wavy surface on the side wall of the transposition base through a clamping pin clamped in the hole site so as to limit the placing direction of the transposition base on the assembly mandrel.
Further, the first positioning assembly comprises a first guide rail, a lower guide rail slider plate, a lower push-pull cylinder, a lower telescopic cylinder and a lower pressing arm;
the first guide rail is fixed on the assembly base and is parallel to the horizontal plane, the lower guide rail sliding block plate is connected with the first guide rail in a sliding mode, the lower telescopic cylinder is arranged on the lower guide rail sliding block plate, the lower pressing arm is fixedly connected with a driving shaft of the lower telescopic cylinder, and the axial direction of the driving shaft of the lower telescopic cylinder is perpendicular to the horizontal plane;
the lower guide rail sliding block plate is fixedly connected with a driving shaft of the lower push-pull cylinder, and the axial direction of the driving shaft of the lower push-pull cylinder is parallel to the horizontal plane;
the driving shaft of the lower push-pull cylinder drives the lower pressure arm to approach or leave the assembly mandrel along the first guide rail through the lower guide rail slider plate;
and the driving shaft of the lower telescopic cylinder drives the lower pressure arm to move along the axial direction of the driving shaft of the lower telescopic cylinder.
Furthermore, the mistake proofing structure also comprises a double-hole positioning rod, an adjustable push rod and a fixed bracket; the fixed bracket is provided with a through hole;
the double-hole positioning rod is installed in the through hole, one end of the double-hole positioning rod is fixedly connected with the adjustable push rod, and the adjustable push rod drives the double-hole positioning rod to move along the axial direction of the through hole, so that one end, far away from the adjustable push rod, of the double-hole positioning rod is inserted into or moved out of the side clamping position of the transposition seat.
Further, a height adjusting device for adjusting the installation height of the assembly mandrel is arranged at the bottom of the assembly mandrel.
Furthermore, the clamping and positioning mechanism further comprises a movable platform, and the assembly base is arranged on the movable platform; the movable platform drives the assembly base to move according to a preset moving path or rotate at a preset speed.
Furthermore, the positioning mechanism also comprises a third positioning assembly, and the third positioning assembly comprises a finger pulling and pushing cylinder, a finger pulling slider plate, a finger pulling and positioning block and a finger pulling and detecting sensor;
the assembly base is also provided with a third guide rail, and the finger-pulling sliding block plate is arranged on the third guide rail;
the finger pulling and pushing cylinder is connected with the finger pulling sliding block plate and is used for driving the finger pulling sliding block plate to approach or depart from the assembly mandrel along the third guide rail;
the shifting positioning block is arranged on the shifting finger sliding block plate, and is used for limiting the position of a shifting finger of the shifting swing rod when the shifting finger push-pull cylinder drives the shifting finger sliding block plate to approach to the designated position of the assembly mandrel, and the shifting swing rod is nested on the shift shaft and is placed on the supporting plate;
the gear shifting swing rod is arranged on the gear shifting device, and the gear shifting swing rod is arranged on the gear shifting device.
Furthermore, the second positioning assembly comprises a second guide rail, an upper guide rail slider plate, an upper push-pull cylinder, a swing arm cylinder and a rotary pressing arm;
the second guide rail is arranged on the assembly base, and the upper guide rail slider plate is connected with the second guide rail in a sliding manner;
the upper push-pull cylinder is connected with the upper guide rail sliding block plate and is used for driving the upper guide rail sliding block plate to approach or depart from the assembly mandrel along the second guide rail;
the swing arm cylinder is arranged on the upper guide rail slider plate; the swing arm cylinder is connected with the rotary pressing arm and used for enabling the rotary pressing arm to be in rotary pressing fit with the gear shifting swing rod according to a preset rotating angle.
The invention also provides a laser welding device, which comprises a moving mechanism, a laser welding head and the gear shifting shaft assembly clamping and positioning mechanism; the laser welding head is arranged on the movement mechanism;
when a first welding instruction is received, the first positioning assembly enables the supporting plate sleeved on the gear shifting shaft to be tightly pressed on the top surface of the body, and the moving mechanism drives the laser welding head to weld a welding seam between the gear shifting shaft and the supporting plate;
after the welding seam between the gear shifting shaft and the support plate is welded, the first positioning component is moved away, and the movement mechanism drives the laser welding head to weld the welding seam between the gear shifting seat and the support plate;
after welding seams between the shifting seat and the supporting plate are welded, the shifting swing rod is sleeved on the shifting shaft until the bottom end of the shifting swing rod abuts against the supporting plate;
when a second welding instruction is received, the second positioning assembly presses the gear shifting swing rod sleeved on the gear shifting shaft onto the supporting plate, and the movement mechanism drives the laser welding head to weld a welding seam between the supporting plate and the gear shifting swing rod and a welding seam between the gear shifting swing rod and the gear shifting shaft;
and moving away the second positioning assembly, and enabling the moving mechanism to drive the laser welding head to weld the welding seam on the top surface of the gear shifting swing rod.
The clamping and positioning mechanism for the gear shifting shaft assembly provided by the invention has the beneficial effects that: compared with the prior art, the gear shifting shaft assembly clamping and positioning mechanism provided by the invention can realize rapid clamping and positioning of gear shifting shaft assembly parts, and the mistake-proof structure arranged by the clamping and positioning mechanism can prevent the gear shifting shaft assembly parts from being assembled wrongly to the maximum extent, so that the gear shifting shaft assembly parts can be automatically rotated and welded by laser, and the production efficiency and the welding qualification rate of the gear shifting shaft assembly are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1-a is a perspective view of a shift shaft assembly including partial components during a welding process;
FIG. 1-b is a perspective view of the shift shaft assembly after assembly;
fig. 2 is a top view of a clamping and positioning mechanism for a shift shaft assembly according to an embodiment of the present invention;
FIG. 3 is a sectional view taken along line B-B of FIG. 2;
fig. 4 is a perspective view of the gear shift shaft assembly clamping and positioning mechanism;
FIG. 5 is a perspective view of the assembly mandrel 20;
FIG. 6 is a top view of the assembly spindle after placement of the shift shaft assembly;
FIG. 7 is a sectional view taken along line A-A of FIG. 6;
FIG. 8 is a perspective view of the assembly spindle after placement of the shift shaft assembly;
FIG. 9 is a perspective view of a laser welding apparatus according to an embodiment of the present invention performing a welding operation.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-a and 1-b together, fig. 1-a is a perspective view of a gear shift shaft assembly during welding process including partial components, and fig. 1-b is a perspective view of the gear shift shaft assembly after assembly is completed.
The gear shifting shaft assembly comprises a gear shifting shaft 01, a shifting seat 02, a supporting plate 03 and a gear shifting swing rod 04. Specifically, a pulling finger 041 is further arranged on the side surface of the gear shifting swing rod 04, and the gear shifting swing rod 04 comprises a gear shifting swing rod body and a gear shifting swing rod cap. In the welding process, the welding seams to be welded comprise a welding seam 001 between the gear shifting shaft 01 and the support plate 03, a welding seam 002 between the transposition base 02 and the support plate 03, a welding seam 003 between the support plate 03 and the gear shifting swing rod 04, a welding seam 004 between the gear shifting shaft 01 and the gear shifting swing rod cap, and a welding seam 005 between the gear shifting swing rod cap and the gear shifting swing rod body.
Referring to fig. 2 to 8, fig. 2 is a top view of a clamping and positioning mechanism for a shift shaft assembly according to an embodiment of the present invention. Fig. 3 is a sectional view of the structure taken along line B-B in fig. 2. Fig. 4 is a perspective view of the clamping and positioning mechanism of the gear shift shaft assembly. Fig. 5 is a perspective view of the assembly mandrel 20. FIG. 6 is a top view of the assembly spindle after placement of the shift shaft assembly. Fig. 7 is a sectional view of the structure taken along line a-a in fig. 6. Fig. 8 is a perspective view of the assembly spindle after placement of the shift shaft assembly.
Specifically, the gear shifting shaft assembly clamping and positioning mechanism is used for positioning a part of the gear shifting shaft assembly to be processed. The clamping and positioning mechanism comprises an assembly base 10, an assembly mandrel 20 and a positioning mechanism; the assembly mandrel 20 and the positioning mechanism are arranged on the assembly base 10; the assembly mandrel 20 comprises a body, a shaft hole 201 and an error-proofing structure arranged on the body; the shaft hole 201 is arranged on the body in a penetrating way;
the positioning mechanism comprises a first positioning component and a second positioning component;
the gear shifting shaft 01 is inserted into the shaft hole 201, and the arrangement direction of the gear shifting seat 02 on the assembly mandrel 20 is limited by the mistake-proof structure;
when welding seams between the gear shifting shaft 01 and the supporting plate 03 are welded, the supporting plate 03 sleeved on the gear shifting shaft 01 is pressed on the top surface of the body by the first positioning assembly;
when welding seams between the support plate 03 and the gear shifting swing rod 04 and between the gear shifting swing rod 04 and the gear shifting shaft 01 are welded, the gear shifting swing rod 04 sleeved on the gear shifting shaft 01 is pressed on the support plate 03 through the second positioning assembly.
Specifically, referring to fig. 5, fig. 5 is a perspective view of the assembly mandrel 20. The assembly mandrel 20 includes a body having an irregular cylindrical structure, a shaft hole 201 formed in the body near the center, and an error-proofing structure. The mistake proofing structure is including setting up the location step in the body periphery. The bottom surface of the transposition seat 02 abuts against the positioning step. And a clamping pin hole position 202 is arranged on the plane of the positioning step. The locating pins 24 (see fig. 6) clamped in the locating pin hole positions 202 are engaged with the wavy surfaces on the side walls of the shifting seat 02 to define the arrangement direction of the shifting seat 02 on the assembly mandrel 20. Due to the limiting effect of the positioning step of the assembly mandrel and the clamping pin, the transposition base 02 can be sleeved into the assembly mandrel 20 only according to the fixed direction, and the assembly mandrel 20 cannot be sleeved in other angle directions, so that the transposition base is prevented from being misplaced. Meanwhile, the clamping pin can be used for secondarily positioning the placing angle direction of the shifting seat 02 placed in the assembly mandrel 20, so that the shifting seat 02 is prevented from being placed incorrectly.
Further, as shown in fig. 6-7, the mistake proofing structure further includes a two-hole positioning rod 211, an adjustable push rod 212, and a fixing bracket 25; the fixed bracket 25 is provided with a through hole;
the double-hole positioning rod 211 is arranged in the through hole, one end of the double-hole positioning rod 211 is connected with the adjustable push rod fixing 212, and the adjustable push rod 212 drives the double-hole positioning rod 211 to move along the axial direction of the through hole, so that one end, far away from the adjustable push rod 212, of the double-hole positioning rod 211 is inserted into or moved out of the side clamping position of the transposition seat 02.
The fixing bracket 25 is fixed to a hole 203 in the side surface of the assembly core shaft 20 via a fixing member 26. The fixing member 26 may be a bolt, and the hole 203 may be a screw hole adapted to the fixing member 26.
In one embodiment, a spring structure is provided in the through hole of the fixing bracket 25 for mounting the two-hole positioning rod 211, and the spring structure can enable the two-hole positioning rod 211 to be inserted into the side position of the position changing seat 02 to be clamped. Specifically, before the shifting seat 02 is sleeved into the assembly spindle 20, the adjustable push rod 212 is required to drive the two-hole positioning rod 211 to move in a direction away from the shifting shaft 01, and after the shifting seat 02 is sleeved into the assembly spindle 20, the two-hole positioning rod 211 is inserted into a side position of the shifting seat 02 under the driving of the spring structure, so that the side position of the shifting seat 02 is limited. Due to the limiting effect of the double-hole positioning rod 211, the transposition seat 02 can be effectively prevented from rotating.
Specifically, as shown in fig. 2 to 4, the first positioning assembly includes a first guide rail 31, a lower guide rail slider plate 32, a lower push-pull cylinder 33, a lower telescopic cylinder 34, and a lower pressing arm 35;
the first guide rail 31 is fixed on the assembly base 10 and is parallel to the horizontal plane, the lower guide rail slider plate 32 is connected with the first guide rail 31 in a sliding manner, the lower telescopic cylinder 34 is arranged on the lower guide rail slider plate 32, the lower pressure arm 35 is fixedly connected with a driving shaft of the lower telescopic cylinder 34, and the axial direction of the driving shaft of the lower telescopic cylinder 34 is vertical to the horizontal plane;
the lower guide rail sliding block plate 32 is fixedly connected with a driving shaft of the lower push-pull cylinder 33, and the axial direction of the driving shaft of the lower push-pull cylinder 33 is parallel to the horizontal plane;
the driving shaft of the lower push-pull cylinder 33 drives the lower pressing arm 35 to approach or separate from the assembly mandrel 20 along the first guide rail 31 through the lower guide rail slider plate 32;
the drive shaft of the lower telescopic cylinder 34 drives the lower pressing arm 35 to move along the axial direction of the drive shaft of the lower telescopic cylinder 34.
The first positioning member is used to fix the position of the support plate 03 when welding the weld 001. After the shift shaft 01, the transposition seat 02 and the support plate 03 are sleeved on the assembly mandrel, the lower push-pull cylinder is communicated with air to drive the lower telescopic cylinder 34 arranged on the lower guide rail slider plate 32 to move towards the shift shaft 01. The lower rail slider plate 32 stops moving when the lower pressing arm 35 moves to a prescribed position (i.e., above the support plate 03). The lower telescopic cylinder 34 drives the lower pressing arm 35 to move downwards to press the supporting plate 03 tightly. At this time, the welding operation for the weld 001 can be performed.
Specifically, referring to fig. 3, the bottom of the assembly spindle 20 is provided with a height adjusting device 23 for adjusting the installation height of the assembly spindle 20.
In order to adapt to gear shift shafts of different lengths, the bottom of the assembly spindle 20 may be provided with a height adjustment device 23 of adjustable height.
Further, referring to fig. 9, the clamping and positioning mechanism further includes a movable platform 60, and the assembly base 10 is mounted on the movable platform 60; the movable platform 60 drives the assembly base 10 to move along a predetermined moving path or rotate at a predetermined speed.
In one embodiment, the movable platform 60 may be a rotating indexing disk. The rotary indexing disc, also called indexing table or indexing disc, is mainly of a worm and gear type structure. The rotary indexing plate can drive the assembly base 10 to rotate circularly.
Further, referring to fig. 2-4, the positioning mechanism further includes a third positioning assembly, which includes a finger-pulling push-pull cylinder 53, a finger-pulling slider plate 52, a finger-pulling positioning block 54, and a finger-pulling detection sensor 55;
the assembly base 10 is further provided with a third guide rail 51, and the finger-pulling slider plate 52 is mounted on the third guide rail;
the finger pulling and pushing cylinder 53 is connected with the finger pulling sliding block plate 52 and is used for driving the finger pulling sliding block plate 52 to approach or depart from the assembly mandrel 20 along the third guide rail 51;
the finger pulling and pushing cylinder 53 drives the finger pulling and pushing block plate 52 to approach to the designated position of the assembly mandrel 20, the finger pulling and pushing block 54 is used for limiting the position of a pulling finger 041 of the gear shifting swing rod 04, and the gear shifting swing rod 04 is nested on the gear shifting shaft 01 and is placed on the supporting plate 03;
a finger pulling detection sensor 55 is arranged above the finger pulling positioning block 54 and used for detecting whether the gear shifting swing rod 04 is put in place or not.
In one embodiment, after the welds 001 and 002 are welded, the finger-pulling cylinder 53 drives the finger-pulling slider plate 52 to approach the designated position of the assembly mandrel 20. At this time, the shift rocker 04 can be nested on the shift shaft 01 and placed on the support plate 03, and the pulling finger 041 can be clamped in the pulling finger positioning block 54. The finger positioning block 54 clamps the end faces of the two sides of the finger 041, so as to ensure the relative deflection angle direction between the gear shifting swing rod 04 and the transposition base 02. The finger-pushing detection sensor 55 starts to detect whether the gear-shifting swing rod 04 is placed at the correct position, and when the in-place signal is detected, the signal is fed back to the control system to confirm that the gear-shifting swing rod 04 is in place.
Further, as shown in fig. 2-4, the second positioning assembly includes a second guide rail 41, an upper guide rail slider plate 42, an upper push-pull cylinder 43, a swing arm cylinder 44, and a rotary pressing arm 45;
the second guide rail 41 is arranged on the assembly base 10, and the upper guide rail slider plate 42 is connected with the second guide rail 41 in a sliding manner;
the upper push-pull air cylinder 43 is connected with the upper guide rail slider plate 42 and is used for driving the upper guide rail slider plate 42 to approach or depart from the assembly mandrel 20 along the second guide rail 41;
a swing arm cylinder 44 is arranged on the upper guide rail slider plate 41; the swing arm cylinder 44 is connected with the rotary pressing arm 45, and is used for enabling the rotary pressing arm 45 to rotatably press the gear shifting swing rod 04 according to a preset rotation angle.
In one embodiment, after the shift rocker 04 is determined to be in place, the upper push-pull cylinder 43 drives the upper rail slider plate 42 to approach the assembly spindle 20, and then the swing arm cylinder 44 drives the rotary pressing arm 45 to rotatably press the shift rocker 04 according to a predetermined rotation angle. Here, the rotation angle may be 90 °. The movement locus of the rotating pressing arm 45 is spiral downward.
The clamping and positioning mechanism for the gear shifting shaft assembly provided by the invention has the beneficial effects that: compared with the prior art, the gear shifting shaft assembly clamping and positioning mechanism provided by the invention can realize rapid clamping and positioning of gear shifting shaft assembly parts, and the mistake-proof structure arranged by the clamping and positioning mechanism can prevent the gear shifting shaft assembly parts from being assembled wrongly to the maximum extent, so that the gear shifting shaft assembly parts can be automatically rotated and welded by laser, and the production efficiency and the welding qualification rate of the gear shifting shaft assembly are improved.
Referring to fig. 9, fig. 9 is a perspective view of a laser welding apparatus according to an embodiment of the present invention performing a welding operation. The invention also provides a laser welding device, which comprises a moving mechanism 80, a laser welding head 70 and the gear shifting shaft assembly clamping and positioning mechanism; the laser welding head 70 is arranged on the moving mechanism 80;
when a first welding instruction is received, the first positioning assembly is enabled to tightly press the supporting plate 03 sleeved on the gear shifting shaft 01 to the top surface of the body, and the moving mechanism 80 drives the laser welding head 70 to weld a welding seam between the gear shifting shaft 01 and the supporting plate 03;
after the welding seam between the gear shifting shaft 01 and the support plate 03 is welded, the first positioning assembly is moved away, and the movement mechanism 80 drives the laser welding head 70 to weld the welding seam between the gear shifting seat 02 and the support plate 03;
after welding seams between the shifting seat 02 and the supporting plate 03 are welded, the shifting swing rod 04 is sleeved on the shifting shaft 01 until the bottom end of the shifting swing rod 04 abuts against the supporting plate 03;
when a second welding instruction is received, the second positioning assembly presses the gear shifting swing rod 04 sleeved on the gear shifting shaft 01 onto the supporting plate 03 in a pressing mode, and the moving mechanism 80 drives the laser welding head 70 to weld a welding seam between the supporting plate 03 and the gear shifting swing rod 04 and a welding seam between the gear shifting swing rod 04 and the gear shifting shaft 01;
and removing the second positioning assembly, and enabling the moving mechanism 80 to drive the laser welding head 70 to weld the welding seam on the top surface of the gear shifting swing rod 40.
Specifically, the movement mechanism 80 may be a robotic arm that moves the laser welding head 70 to a desired position according to a predetermined program to align the laser welding head 70 with the weld to be welded.
When the first welding command is executed, the laser welding head 70 performs two welding operations, i.e., the welding line (i.e., the welding line 001) between the shift shaft 01 and the support plate 03 and the welding line (i.e., the welding line 002) between the shift holder 02 and the support plate 03, respectively, by the laser welding head 70.
After the first positioning assembly fixes the support plate 03, the moving mechanism 80 clamps the laser welding head 70 to be aligned to the position of the welding seam 001, and the movable platform 60 drives the gear shifting shaft 01 and the support plate 03 to rotate for a circle, so that the welding seam 001 is welded.
After the welding seam 001 is welded, the lower push-pull cylinder 33 drives the lower press arm 35 and the lower telescopic cylinder 34 to exit from the welding seam area together, the moving mechanism 80 clamps the laser welding head 70 to be aligned with the position of the welding seam 002, and the movable platform 60 drives the shifting seat 02 and the support plate 03 to rotate for a circle, so that the welding seam 002 is welded.
Optionally, after the welding of the welding seam 002 is completed, the finger-pulling cylinder 53 drives the finger-pulling slider plate 52 to approach to the designated position of the assembly mandrel 20, and the gear-shifting swing rod 04 is nested on the gear-shifting shaft 01 and is placed on the supporting plate 03. The finger pulling detection sensor 55 detects that the gear shifting swing rod 04 is put in place. At this point, the second welding instructions may be executed.
Specifically, the upper push-pull cylinder 43 drives the upper guide rail slider plate 42 to approach to the assembly core shaft 20, and then the swing arm cylinder 44 drives the rotary pressing arm 45 to rotate and press the gear shifting swing rod 04 according to a preset rotation angle. The moving mechanism 80 drives the laser welding head 70 to align to a welding line between the supporting plate 03 and the gear shifting oscillating rod 04, and the welding line 003 is welded around a circle; and aligning the welding seam between the gear shifting swing rod 04 and the gear shifting shaft 01, welding the welding seam around a circle and welding a welding seam 004.
The upper push-pull cylinder 43 drives the upper guide rail slider plate 42 to leave the welding area, and the moving mechanism 80 drives the laser welding head 70 to align with the welding line (i.e. the welding line 005) on the top surface of the gear shifting swing rod 40, and the welding line 005 is welded around one circle. And then, completing the welding of the gear shifting shaft assembly.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A clamping and positioning mechanism for a gear shifting shaft assembly comprises a gear shifting shaft, a shifting seat, a supporting plate and a gear shifting swing rod, and is characterized in that the clamping and positioning mechanism comprises an assembly base, an assembly mandrel and a positioning mechanism; the assembly mandrel and the positioning mechanism are arranged on the assembly base; the assembly mandrel comprises a body, a shaft hole and an error-proofing structure arranged on the body; the shaft hole is arranged on the body in a penetrating way;
the positioning mechanism comprises a first positioning component and a second positioning component;
the gear shifting shaft is inserted into the shaft hole, and the arrangement direction of the gear shifting seat on the assembly mandrel is limited by the mistake-proofing structure;
when welding seams between the gear shifting shaft and the support plate are welded, the support plate sleeved on the gear shifting shaft is pressed on the top surface of the body by the first positioning assembly;
when welding seams between the supporting plate and the gear shifting swing rod and between the gear shifting swing rod and the gear shifting shaft are welded, the gear shifting swing rod sleeved on the gear shifting shaft is pressed on the supporting plate by the second positioning assembly;
the positioning mechanism further comprises a third positioning assembly, and the third positioning assembly comprises a finger pulling push-pull cylinder, a finger pulling slider plate, a finger pulling positioning block and a finger pulling detection sensor;
the assembly base is also provided with a third guide rail, and the finger-pulling sliding block plate is arranged on the third guide rail;
the finger pulling and pushing cylinder is connected with the finger pulling sliding block plate and is used for driving the finger pulling sliding block plate to approach or depart from the assembly mandrel along the third guide rail;
the shifting positioning block is arranged on the shifting finger sliding block plate, and is used for limiting the position of a shifting finger of the shifting swing rod when the shifting finger push-pull cylinder drives the shifting finger sliding block plate to approach to the designated position of the assembly mandrel, and the shifting swing rod is nested on the shift shaft and is placed on the supporting plate;
the gear shifting swing rod is arranged on the gear shifting device, and the gear shifting swing rod is arranged on the gear shifting device.
2. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1, wherein said mistake proofing structure comprises a positioning step provided on the periphery of said body; the bottom surface of the transposition seat is abutted against the positioning step.
3. A shift axle assembly clamping and positioning mechanism as set forth in claim 2, wherein said error proofing structure further comprises an aperture disposed on said positioning step, said error proofing structure engaging with a wavy surface on said shift seat side wall through a clamping pin clamped in said aperture to define the orientation of said shift seat on said assembly spindle.
4. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1 wherein said first positioning assembly comprises a first guide rail, a lower guide rail slider plate, a lower push-pull cylinder, a lower telescopic cylinder, a lower pressing arm;
the first guide rail is fixed on the assembly base and is parallel to the horizontal plane, the lower guide rail sliding block plate is connected with the first guide rail in a sliding mode, the lower telescopic cylinder is arranged on the lower guide rail sliding block plate, the lower pressing arm is fixedly connected with a driving shaft of the lower telescopic cylinder, and the axial direction of the driving shaft of the lower telescopic cylinder is perpendicular to the horizontal plane;
the lower guide rail sliding block plate is fixedly connected with a driving shaft of the lower push-pull cylinder, and the axial direction of the driving shaft of the lower push-pull cylinder is parallel to the horizontal plane;
the driving shaft of the lower push-pull cylinder drives the lower pressure arm to approach or leave the assembly mandrel along the first guide rail through the lower guide rail slider plate;
and the driving shaft of the lower telescopic cylinder drives the lower pressure arm to move along the axial direction of the driving shaft of the lower telescopic cylinder.
5. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1, wherein said mistake proofing structure further comprises a double-hole positioning rod, an adjustable push rod, a fixing bracket; the fixed bracket is provided with a through hole;
the double-hole positioning rod is installed in the through hole, one end of the double-hole positioning rod is fixedly connected with the adjustable push rod, and the adjustable push rod drives the double-hole positioning rod to move along the axial direction of the through hole, so that one end, far away from the adjustable push rod, of the double-hole positioning rod is inserted into or moved out of the side clamping position of the transposition seat.
6. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1, characterized in that a height adjusting device for adjusting the mounting height of said assembly core shaft is provided at the bottom of said assembly core shaft.
7. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1 further comprising a movable platform upon which said assembly base is mounted; the movable platform drives the assembly base to move according to a preset moving path or rotate at a preset speed.
8. A shift shaft assembly clamping and positioning mechanism as set forth in claim 1, wherein said second positioning assembly comprises a second guide rail, an upper guide rail slider plate, an upper push-pull cylinder, a swing arm cylinder, a rotary pressing arm;
the second guide rail is arranged on the assembly base, and the upper guide rail slider plate is connected with the second guide rail in a sliding manner;
the upper push-pull cylinder is connected with the upper guide rail sliding block plate and is used for driving the upper guide rail sliding block plate to approach or depart from the assembly mandrel along the second guide rail;
the swing arm cylinder is arranged on the upper guide rail slider plate; the swing arm cylinder is connected with the rotary pressing arm and used for enabling the rotary pressing arm to be in rotary pressing fit with the gear shifting swing rod according to a preset rotating angle.
9. A laser welding device, which is characterized by comprising a moving mechanism, a laser welding head and a gear shifting shaft assembly clamping and positioning mechanism according to any one of claims 1-8; the laser welding head is arranged on the movement mechanism;
when a first welding instruction is received, the first positioning assembly enables the supporting plate sleeved on the gear shifting shaft to be tightly pressed on the top surface of the body, and the moving mechanism drives the laser welding head to weld a welding seam between the gear shifting shaft and the supporting plate;
after the welding seam between the gear shifting shaft and the support plate is welded, the first positioning component is moved away, and the movement mechanism drives the laser welding head to weld the welding seam between the gear shifting seat and the support plate;
after welding seams between the shifting seat and the supporting plate are welded, the shifting swing rod is sleeved on the shifting shaft until the bottom end of the shifting swing rod abuts against the supporting plate;
when a second welding instruction is received, the second positioning assembly presses the gear shifting swing rod sleeved on the gear shifting shaft onto the supporting plate, and the movement mechanism drives the laser welding head to weld a welding seam between the supporting plate and the gear shifting swing rod and a welding seam between the gear shifting swing rod and the gear shifting shaft;
and moving away the second positioning assembly, and enabling the moving mechanism to drive the laser welding head to weld the welding seam on the top surface of the gear shifting swing rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390810.5A CN110102880B (en) | 2019-05-10 | 2019-05-10 | Clamping and positioning mechanism for gear shifting shaft assembly and laser welding device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910390810.5A CN110102880B (en) | 2019-05-10 | 2019-05-10 | Clamping and positioning mechanism for gear shifting shaft assembly and laser welding device |
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| Publication Number | Publication Date |
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| CN110102880A CN110102880A (en) | 2019-08-09 |
| CN110102880B true CN110102880B (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910390810.5A Active CN110102880B (en) | 2019-05-10 | 2019-05-10 | Clamping and positioning mechanism for gear shifting shaft assembly and laser welding device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111922587B (en) * | 2020-07-27 | 2022-05-27 | 安徽成飞集成瑞鹄汽车模具有限公司 | Automobile transmission operating lever support assembly welding tool and machining method |
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| CN208467610U (en) * | 2018-05-30 | 2019-02-05 | 重庆北方青山精密机械制造有限责任公司 | A kind of fixture for laser welding for axle assembly of shifting gears |
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2019
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| JPH07241672A (en) * | 1994-03-07 | 1995-09-19 | Mitsubishi Materials Corp | Cladding by welding equipment |
| CN103909374A (en) * | 2014-04-17 | 2014-07-09 | 诸暨市中汽机械零部件有限公司 | Shift shaft welding fixture |
| CN205571976U (en) * | 2015-12-24 | 2016-09-14 | 重庆威诺克智能装备股份有限公司 | A anchor clamps for diversely process gear level |
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| CN110102880A (en) | 2019-08-09 |
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Effective date of registration: 20230524 Address after: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee after: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee after: Suzhou Han's Intelligent Equipment Co.,Ltd. Address before: 518000 No. 9988 Shennan Road, Nanshan District, Shenzhen, Guangdong Patentee before: HAN'S LASER TECHNOLOGY INDUSTRY GROUP Co.,Ltd. Patentee before: HAN'S LASER SMART EQUIPMENT GROUP Co.,Ltd. |
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