CN118875487A - Welding device for gear processing - Google Patents

Abstract

The invention relates to a welding device for gear machining, which is applied to the field of gear machining and comprises laser welding equipment, a base and a protective housing, wherein the laser welding equipment is arranged on one side of the upper end of the protective housing, a rectangular through hole I is formed in the upper end of one side of the protective housing, which is close to the laser welding equipment, a reciprocating sliding table is horizontally arranged at the inner top end of the protective housing, a double-station module is arranged on one side of the reciprocating sliding table, which is close to the laser welding equipment, a driving motor is arranged at the upper end of the base, a transmission mechanism is jointly arranged among the reciprocating sliding table, the double-station module and the protective housing, the output end of the driving motor is connected with the transmission mechanism, and under the condition that the driving motor rotates in a single direction, the reciprocating sliding table is driven to horizontally reciprocate through the transmission mechanism, so that workpieces on the double-station module alternately stay at the laser welding equipment and rotate to complete welding together with the laser welding equipment, and meanwhile, feeding and discharging actions on non-welding operation stations are completed.

Description

Welding device for gear processing

Technical Field

The invention relates to a welding device, in particular to a welding device for gear processing applied in the field of gear processing.

Background Art

Gears refer to mechanical elements with teeth on the rim that can continuously mesh to transmit motion and power. They can drive and transmit power, and are common basic units and components in mechanical structures. Gears have a stable structure and diverse functions. Gears and gear products are important basic parts of mechanical equipment. The main transmission components of most mechanical complete sets of equipment are gear transmissions. Gears are often used in automobile engines and gearboxes. When processing gears, the gear shaft and the gear need to be welded together, which requires the use of welding equipment.

For example, the specification of patent publication number CN117161559B discloses a gear processing and welding device, including: a frame, which is used to install the parts of the entire welding device; a bracket, which is fixedly connected to the top of the frame, and a through groove one is opened on one side of the bracket, and a connecting plate is fixedly connected inside the through groove one; a rotating block is embedded in the top of the frame; a workbench, which is fixedly connected to the top of the rotating block, and two connecting blocks are embedded inside the workbench. Two connecting blocks are arranged on the workbench. When welding is performed, the gear shafts and gear bodies on the two workstations can be moved to the left side of the laser welding machine in turn for welding through the forward rotation of the motor. The welding work can be performed while the welded finished product is manually removed and replaced with a new one, thereby improving the welding efficiency.

Based on the above search and in combination with the prior art, it is found that most of the existing welding devices for gear processing use a motor to drive the workstation to move alternately to weld the gears and gear shafts on the workstation. However, this operation requires the motor to start and stop frequently, and the frequent start and stop of the motor will accelerate the wear of the motor and cause the motor to heat up more seriously, thereby shortening the service life of the motor. Therefore, a welding device for gear processing is proposed to improve the above problems.

Summary of the invention

In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that most of the existing welding devices for gear processing use motors to drive the workstations to move alternately to weld the gears and gear shafts on the workstations, but this operation requires the motor to be started and stopped frequently, and the frequent start and stop of the motor will accelerate the wear of the motor and cause the motor to heat up more seriously, thereby shortening the service life of the motor.

In order to solve the above problems, the present invention provides a welding device for gear processing, including a laser welding device and a base, wherein a protective shell cover is installed on the upper end of the base, the laser welding device is installed on one side of the upper end of the protective shell cover, and a rectangular through hole is provided on the upper end of the protective shell cover close to the laser welding device;

A reciprocating slide is installed horizontally and slidably at the inner top of the protective shell cover, a double-station module is installed on the side of the reciprocating slide close to the laser welding equipment, the double-station module is adapted to the rectangular through hole, a driving motor is installed on the upper end of the base, a transmission mechanism is installed between the reciprocating slide, the double-station module and the protective shell cover, and the output end of the driving motor is connected to the transmission mechanism;

When the driving motor rotates in one direction, the reciprocating slide is driven to move horizontally through the transmission mechanism, so that the workpieces on the double-station module alternately stay at the laser welding equipment and rotate to cooperate with the laser welding equipment to complete the welding, while completing the loading and unloading actions at the non-welding work station.

As a further supplement to the present application, the double-station module includes two fixed cylinder seats, which are arranged along the sliding direction of the reciprocating slide and are both vertically rotatably mounted on the reciprocating slide, and a fixed structure is installed on the inner side of the fixed cylinder seat;

The bottom of the fixed cylinder seat is connected with the transmission mechanism.

As a further supplement to the present application, the fixing structure includes a notched retaining spring and two limiting rings;

Two limit rings are arranged up and down and are both fixed on the inner side of the fixed cylinder seat. The notch retaining spring is located between the two limit rings. When the notch retaining spring is not squeezed by external force, the distance between the two limit rings is greater than the height of the notch retaining spring. The two limit rings can limit the notch retaining spring to ensure that the notch retaining spring can clamp and fix the gear shaft while being deformed by the squeezing effect of the gear shaft.

As a further supplement to the present application, the transmission mechanism includes a horizontal reciprocating transmission structure, an acceleration transmission structure and a reversing transmission structure;

The horizontal reciprocating drive structure is installed at the output end of the drive motor and is located on the side of the reciprocating slide away from the double-station module. The reversing transmission structure is installed between the fixed cylinder seat, the reciprocating slide and the protective shell cover. The acceleration transmission structure is installed between the horizontal reciprocating transmission structure and the reversing transmission structure.

As a further supplement to the present application, the horizontal reciprocating transmission structure includes an incomplete gear coaxially fixed to the output end of the driving motor, and a rectangular through hole 2 is provided on the side of the reciprocating slide away from the double-station module. A plurality of tooth blocks are evenly fixed on the hole walls on both sides of the rectangular through hole 2 along the sliding direction of the reciprocating slide, and the incomplete gear only meshes with the tooth block on one side of the rectangular through hole 2 at the same time.

As a further supplement to the present application, the reversing transmission structure includes a first bevel gear, a second bevel gear, a limit slide bar and a reversing assembly;

The first bevel gear is vertically rotatably mounted on the upper end of the base and is connected to the acceleration transmission structure. The limit slide bar is horizontally rotatably mounted on the inner side of the protective shell along the sliding direction of the reciprocating slide. The second bevel gear is fixedly sleeved on the outer side of the limit slide bar and meshes with the first bevel gear.

There are two reversing assemblies, and the two reversing assemblies are respectively installed between the limit sliding rod and the two fixed cylinder seats;

The end section of the limiting sliding rod is in a non-circular shape.

As a further supplement to the present application, the reversing assembly includes a third bevel gear, a fourth bevel gear and a linkage seat;

The linkage seat is fixed to the lower end of the reciprocating slide, and the linkage seat sleeve is arranged on the outer side of the limiting slide rod and does not contact the limiting slide rod. The third bevel gear is slidably sleeved on the outer side of the limiting slide rod and rotatably installed on the side end of the linkage seat. The fourth bevel gear is coaxially fixed with the fixed cylinder seat and meshes with the third bevel gear.

As a further supplement to the present application, the acceleration transmission structure includes a first transmission sprocket, a second transmission sprocket and a transmission chain;

The first transmission sprocket is coaxially fixed to the output end of the driving motor, the second transmission sprocket is coaxially fixed to the first bevel gear, and the second transmission sprocket is transmission-connected to the first transmission sprocket via a transmission chain;

The diameter of the first transmission sprocket is greater than the diameter of the second transmission sprocket, so that when the first transmission sprocket rotates one circle, the second transmission sprocket rotates multiple circles.

As a further supplement to the present application, the diameter of the first transmission sprocket is larger than the diameter of the second transmission sprocket, so that the second transmission sprocket can rotate at least one circle during the time period when the incomplete gear in the rotating state is not engaged with the tooth block. Correspondingly, it can be ensured that within this time period, the fixed cylinder seat can rotate at least one circle, thereby driving the gear shaft and the gear to rotate synchronously for at least one circle, completing the complete welding of the gear shaft and the peripheral side of the gear.

As a further supplement to the present application, a positioning ring is provided on the coaxial line on the upper side of the fixed cylinder seat, and the positioning ring is fixed to the reciprocating slide through a support block, so as to facilitate the insertion of the gear shaft into the fixed cylinder seat from top to bottom.

In summary, when the driving motor rotates in a single direction, the incomplete gear cooperates with the tooth block on the reciprocating slide to make the reciprocating slide move back and forth horizontally, and with the cooperation of the first bevel gear, the second bevel gear, the limit slide bar, the third bevel gear, the fourth bevel gear and the linkage seat, the workpieces (interlocked gear shafts and gears) on the double-station module (two fixed cylinder seats) alternately stay at the laser welding equipment and rotate to cooperate with the laser welding equipment for welding. Since the diameter of the first transmission sprocket is larger than the diameter of the second transmission sprocket, the incomplete gear in the rotating state rotates at least one circle during the time period when it is not meshing with the tooth block. Correspondingly, during this time period, the fixed cylinder seat can rotate at least one circle, thereby driving the gear shaft and the gear to rotate synchronously for at least one circle, completing the complete welding of the gear shaft and the peripheral side of the gear, and completing the loading and unloading actions at the fixed cylinder seat at the non-welding operation location.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present application;

FIG2 is a schematic cross-sectional view of the first embodiment of the present application;

FIG3 is a schematic diagram of the front structure of FIG2;

FIG4 is an enlarged schematic diagram of the structure at A in FIG3 ;

FIG5 is a schematic diagram of the side structure of the first embodiment of the present application;

FIG6 is a schematic diagram of the three-dimensional structure of the transmission mechanism of the first embodiment of the present application;

FIG7 is a schematic diagram of the three-dimensional structure of the horizontal reciprocating transmission structure and the acceleration transmission structure of the first embodiment of the present application;

FIG8 is a schematic diagram of the three-dimensional structure of the reversing transmission structure of the first embodiment of the present application;

FIG9 is a schematic diagram of the three-dimensional structure of a notched retaining spring according to the first embodiment of the present application;

FIG. 10 is a schematic structural diagram of the gear shaft and gears of the first embodiment of the present application.

Description of the numbers in the figure:

1. Base; 2. Protective shell cover; 201. Rectangular through hole one; 3. Laser welding equipment; 4. Reciprocating slide; 401. Rectangular through hole two; 402. Tooth block; 403. Limit slider; 5. Driving motor; 6. Incomplete gear; 7. First transmission sprocket; 8. Second transmission sprocket; 9. Transmission chain; 10. First bevel gear; 11. Second bevel gear; 12. Limit slide bar; 13. Third bevel gear; 14. Fourth bevel gear; 15. Linkage seat; 16. Fixed cylinder seat; 17. Positioning ring; 18. Support block; 19. Notch retaining ring; 20. Limit ring; a. Limit block; b. Limit slot.

DETAILED DESCRIPTION

An implementation method of the present application is described in detail below with reference to the accompanying drawings.

The first implementation method:

The present invention provides a welding device for gear processing, please refer to Figures 1-10, including a laser welding device 3 and a base 1. A protective shell cover 2 is installed on the upper end of the base 1, and the laser welding device 3 is installed on one side of the upper end of the protective shell cover 2. A rectangular through hole 201 is provided on the upper end of the protective shell cover 2 close to the laser welding device 3. A reciprocating slide 4 is horizontally slidably installed on the inner top end of the protective shell cover 2, as shown in Figure 6, a limiting slider 403 is installed on the upper end of the reciprocating slide 4, and a limiting slide groove (not shown in the figure) that slides with the limiting slider 403 is provided on the inner top end of the protective shell cover 2. A double-station module is installed on the side of the reciprocating slide 4 close to the laser welding device 3, and the double-station module is adapted to the rectangular through hole 201. A driving motor 5 is installed on the upper end of the base 1, and a transmission mechanism is installed between the reciprocating slide 4, the double-station module and the protective shell cover 2, and the output end of the driving motor 5 is connected to the transmission mechanism.

When the driving motor 5 rotates in a single direction, the reciprocating slide 4 is driven to move horizontally back and forth through the transmission mechanism, so that the workpieces on the double-station module alternately stay at the laser welding equipment 3, and rotate to cooperate with the laser welding equipment 3 to complete the welding, while completing the loading and unloading actions on the non-welding work station.

Among them, the double-station module includes two fixed cylinder seats 16, which are arranged along the sliding direction of the reciprocating slide 4 and are both vertically rotatably installed on the reciprocating slide 4. A fixed structure is installed on the inner side of the fixed cylinder seat 16, and the bottom of the fixed cylinder seat 16 is connected to the transmission mechanism.

Among them, regarding the fixing structure, as shown in Figures 4 and 10, the fixing structure includes a notched retaining spring 19 and two limiting rings 20. The two limiting rings 20 are arranged up and down and are fixed to the inner side of the fixed cylinder seat 16. The notched retaining spring 19 is located between the two limiting rings 20. When the notched retaining spring 19 is not subjected to external force, the distance between the two limiting rings 20 is greater than the height of the notched retaining spring 19.

The two limiting rings 20 can limit the notch retaining spring 19, ensuring that the notch retaining spring 19 can clamp and fix the gear shaft while being deformed by the extrusion of the gear shaft.

A positioning ring 17 is coaxially arranged on the upper side of the fixed cartridge seat 16 , and the positioning ring 17 is fixed to the reciprocating slide 4 through a support block 18 , so as to facilitate the insertion of the gear shaft into the fixed cartridge seat 16 from top to bottom.

Among them, the transmission mechanism includes a horizontal reciprocating transmission structure, an acceleration transmission structure and a reversing transmission structure. The horizontal reciprocating drive structure is installed at the output end of the drive motor 5 and is located on the side of the reciprocating slide 4 away from the double-station module. The reversing transmission structure is installed between the fixed cylinder seat 16, the reciprocating slide 4 and the protective shell cover 2, and the acceleration transmission structure is installed between the horizontal reciprocating transmission structure and the reversing transmission structure.

Regarding the horizontal reciprocating transmission structure, specifically, as shown in Figures 6 and 7, the horizontal reciprocating transmission structure includes an incomplete gear 6 coaxially fixed to the output end of the driving motor 5, and a rectangular through hole 2 401 is provided on the side of the reciprocating slide 4 away from the double-station module. A plurality of tooth blocks 402 are evenly fixed on the hole walls on both sides of the rectangular through hole 2 401 along the sliding direction of the reciprocating slide 4, and the incomplete gear 6 only meshes with the tooth block 402 on one side of the rectangular through hole 2 401 at the same time.

Regarding the reversing transmission structure, specifically, as shown in Figures 6 and 8, the reversing transmission structure includes a first bevel gear 10, a second bevel gear 11, a limit slide bar 12 and a reversing assembly. The first bevel gear 10 is vertically rotatably installed on the upper end of the base 1 and is connected to the acceleration transmission structure. The limit slide bar 12 is horizontally rotatably installed on the inner side of the protective shell cover 2 along the sliding direction of the reciprocating slide 4. The second bevel gear 11 is fixedly sleeved on the outer side of the limit slide bar 12 and meshed with the first bevel gear 10. Two reversing assemblies are provided, and the two reversing assemblies are respectively installed between the limit slide bar 12 and the two fixed cylinder seats 16. The end cross-section of the limit slide bar 12 is a non-circular shape.

The reversing assembly includes a third bevel gear 13, a fourth bevel gear 14 and a linkage seat 15. The linkage seat 15 is fixed to the lower end of the reciprocating slide 4, and the linkage seat 15 is sleeved on the outer side of the limiting slide 12 and does not contact the limiting slide 12. The third bevel gear 13 is slidably sleeved on the outer side of the limiting slide 12 and is rotatably installed on the side end of the linkage seat 15. The fourth bevel gear 14 is coaxially fixed with the fixed cylinder seat 16 and meshes with the third bevel gear 13.

Regarding the acceleration transmission structure, specifically, as shown in Figures 6 and 7, the acceleration transmission structure includes a first transmission sprocket 7, a second transmission sprocket 8 and a transmission chain 9. The first transmission sprocket 7 is coaxially fixed to the output end of the drive motor 5, the second transmission sprocket 8 is coaxially fixed to the first bevel gear 10, and the second transmission sprocket 8 is connected to the first transmission sprocket 7 through the transmission chain 9. The diameter of the first transmission sprocket 7 is greater than the diameter of the second transmission sprocket 8, so that when the first transmission sprocket 7 rotates one circle, the second transmission sprocket 8 rotates multiple circles.

It should be further explained that the diameter of the first transmission sprocket 7 is greater than the diameter of the second transmission sprocket 8, so that the second transmission sprocket 8 can rotate at least one circle during the period when the incomplete gear 6 in the rotating state is not meshing with the tooth block 402. Correspondingly, it can be ensured that within this period of time, the fixed cylinder seat 16 can rotate at least one circle, thereby driving the gear shaft and the gear to rotate synchronously for at least one circle, completing the complete welding of the gear shaft and the peripheral side of the gear.

Working principle: When the driving motor 5 rotates in a single direction, the incomplete gear 6 cooperates with the tooth block 402 on the reciprocating slide 4 to make the reciprocating slide 4 move horizontally, and under the cooperation of the first bevel gear 10, the second bevel gear 11, the limit slide 12, the third bevel gear 13, the fourth bevel gear 14 and the linkage seat 15, the workpiece (the gear shaft and gear connected to each other, the side end of the gear shaft is integrated with a limit block a, and the inner wall of the gear is provided with a limit block a) adapted to the limit block a) on the double-station module (two fixed cylinder seats 16) The card slot b) alternately stays at the laser welding equipment 3 and rotates to cooperate with the laser welding equipment 3 for welding. Since the diameter of the first transmission sprocket 7 is larger than the diameter of the second transmission sprocket 8, the incomplete gear 6 in the rotating state is not in meshing with the tooth block 402. The second transmission sprocket 8 rotates at least one circle. Correspondingly, during this time period, the fixed cylinder seat 16 can rotate at least one circle, thereby driving the gear shaft and the gear to rotate synchronously for at least one circle, completing the complete welding of the gear shaft and the peripheral side of the gear, and completing the loading and unloading actions at the fixed cylinder seat 16 at the non-welding operation location.

In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims (5)

1. Welding device for gear machining, including laser welding equipment (3), its characterized in that: the laser welding device comprises a base (1), and is characterized in that a protective shell cover (2) is arranged at the upper end of the base (1), the laser welding device (3) is arranged at one side of the upper end of the protective shell cover (2), and a rectangular through hole I (201) is formed in the upper end of one side, close to the laser welding device (3), of the protective shell cover (2);

The laser welding device comprises a base, a laser welding device (3) and a protective shell cover (2), wherein the inner top end of the protective shell cover (2) is horizontally and slidably provided with a reciprocating sliding table (4), one side, close to the laser welding device (3), of the reciprocating sliding table (4) is provided with a double-station module, the double-station module is matched with the first rectangular through hole (201), the upper end of the base (1) is provided with a driving motor (5), a transmission mechanism is jointly arranged among the reciprocating sliding table (4), the double-station module and the protective shell cover (2), and the output end of the driving motor (5) is connected with the transmission mechanism;

Under the condition that the driving motor (5) rotates in a single direction, the reciprocating sliding table (4) is driven to horizontally reciprocate through the transmission mechanism, so that workpieces on the double-station module alternately stay at the laser welding equipment (3) and are subjected to autorotation matching with the laser welding equipment (3) to finish welding, and meanwhile, loading and unloading actions on non-welding work stations are finished;

The double-station module comprises two fixed cylinder seats (16), wherein the two fixed cylinder seats (16) are arranged along the sliding direction of the reciprocating sliding table (4) and are vertically and rotatably arranged on the reciprocating sliding table (4), and a fixed structure is arranged on the inner side of each fixed cylinder seat (16);

the bottom of the fixed cylinder seat (16) is connected with the transmission mechanism;

the fixing structure comprises a notch clamp spring (19) and two limiting rings (20);

The two limiting rings (20) are arranged up and down and are both fixed on the inner side of the fixed cylinder seat (16), the notch clamp spring (19) is positioned between the two limiting rings (20), and the distance between the two limiting rings (20) is larger than the height of the notch clamp spring (19) under the condition that the notch clamp spring (19) is not extruded by external force;

the transmission mechanism comprises a horizontal reciprocating transmission structure, an accelerating transmission structure and a reversing transmission structure;

The horizontal reciprocating driving structure is arranged at the output end of the driving motor (5) and is positioned at one side of the reciprocating sliding table (4) far away from the double-station module, the reversing transmission structure is arranged between the fixed cylinder seat (16), the reciprocating sliding table (4) and the protective shell cover (2), and the accelerating transmission structure is arranged between the horizontal reciprocating transmission structure and the reversing transmission structure;

The horizontal reciprocating transmission structure comprises an incomplete gear (6) coaxially fixed at the output end of the driving motor (5), one side of the reciprocating sliding table (4) far away from the double-station module is provided with a rectangular through hole II (401), a plurality of tooth blocks (402) are fixed on the hole walls of the two sides of the rectangular through hole II (401) along the sliding direction of the reciprocating sliding table (4) at equal intervals, and the incomplete gear (6) is only meshed with the tooth blocks (402) on one side of the rectangular through hole II (401) at the same time;

the reversing transmission structure comprises a first conical gear (10), a second conical gear (11), a limiting slide bar (12) and a reversing assembly;

the first bevel gear (10) is vertically and rotatably arranged at the upper end of the base (1) and is connected with the acceleration transmission structure, the limit sliding rod (12) is horizontally and rotatably arranged at the inner side of the protective shell cover (2) along the sliding direction of the reciprocating sliding table (4), and the second bevel gear (11) is fixedly sleeved at the outer side of the limit sliding rod (12) and is meshed with the first bevel gear (10);

The two re-reversing assemblies are arranged and are respectively arranged between the limiting slide rod (12) and the two fixed cylinder seats (16);

the cross section of the end part of the limit sliding rod (12) is in a non-circular shape.

2. The welding device for gear machining according to claim 1, wherein: the re-reversing assembly comprises a third bevel gear (13), a fourth bevel gear (14) and a linkage seat (15);

the linkage seat (15) is fixed at the lower end of the reciprocating sliding table (4), the linkage seat (15) is sleeved on the outer side of the limiting sliding rod (12) and is not in contact with the limiting sliding rod (12), the third bevel gear (13) is sleeved on the outer side of the limiting sliding rod (12) in a sliding manner, the third bevel gear is rotatably mounted at the side end of the linkage seat (15), and the fourth bevel gear (14) is coaxially fixed with the fixed cylinder seat (16) and meshed with the third bevel gear (13).

3. The welding device for gear machining according to claim 2, wherein: the accelerating transmission structure comprises a first transmission chain wheel (7), a second transmission chain wheel (8) and a transmission chain (9);

The first transmission chain wheel (7) is coaxially fixed on the output end of the driving motor (5), the second transmission chain wheel (8) is coaxially fixed with the first conical gear (10), and the second transmission chain wheel (8) is in transmission connection with the first transmission chain wheel (7) through the transmission chain (9);

the diameter of the first driving chain wheel (7) is larger than that of the second driving chain wheel (8), so that when the first driving chain wheel (7) rotates for one circle, the second driving chain wheel (8) rotates for a plurality of circles.

4. A welding apparatus for gear machining according to claim 3, wherein: the diameter of the first transmission chain wheel (7) is larger than that of the second transmission chain wheel (8), so that the incomplete gear (6) in a rotating state rotates at least one circle in a time period when the incomplete gear is not meshed with the tooth block (402).

5. The welding device for gear machining according to claim 4, wherein: the upper side of the fixed cylinder seat (16) is coaxially provided with a positioning ring (17), and the positioning ring (17) is fixed with the reciprocating sliding table (4) through a supporting block (18).