A bolt gluing work station and a method of using the same

Abstract

The application discloses a bolt gluing workstation and a use method thereof, and belongs to the technical field of bolt gluing workstations.The bolt gluing workstation comprises a bolt feeding system, a multi-station turntable mechanism, a rotary gluing mechanism, a glue feeding system, a discharging mechanism and an industrial robot, wherein a plurality of bolt stations are formed in the multi-station turntable mechanism, and the bolt feeding system sequentially feeds each bolt to a bolt station; the rotary gluing mechanism applies glue to the bolt; the glue feeding system provides glue to the rotary gluing mechanism; the rotary gluing mechanism is arranged between the discharging mechanism and the bolt feeding system; the discharging mechanism can clamp the bolt and make the bolt leave the bolt station; and the industrial robot drives a bolt picking device to pick the bolt from the discharging mechanism and perform subsequent work. After the application is applied, the safety is improved, the whole process of bolt gluing and discharging does not need manual participation, and is automatically completed, so that workers are far away from the bolt gluing process area, and the safety of workers is greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of bolt adhesive application, and more particularly to a bolt adhesive application workstation and its usage method. Background Technology

[0002] In the automotive assembly and manufacturing industry, the processes for applying adhesive to brake drums, wheel hubs, and tire bolts currently have a relatively low level of automation. Because the bolt adhesive application process in current automotive assembly plants relies primarily on manual labor, it is cumbersome, inefficient, and inefficient, resulting in high labor costs.

[0003] In particular, the assembly of brake drum bolts in the current automotive assembly industry requires a bolt adhesive application process. When the bolt adhesive application process is carried out manually, the process is cumbersome and inefficient, which cannot meet the requirements of modern automotive assembly plants for large-volume, high-speed, and automated production. Moreover, the thread adhesive is volatile, and long-term manual handling of the adhesive can harm human health. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a bolt gluing workstation.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A bolt adhesive application workstation, comprising:

[0007] Bolt feeding system;

[0008] A multi-station turntable mechanism is provided, which is in the form of a disc and rotates around its central axis. The multi-station turntable mechanism is provided with a plurality of bolt stations, which are arranged in a ring array around the central axis of the multi-station turntable mechanism. The bolt feeding system sequentially feeds each bolt to one of the bolt stations.

[0009] A rotary adhesive applicator is located on one side of the multi-station turntable mechanism, and the rotary adhesive applicator applies adhesive to the bolt.

[0010] An adhesive supply system is connected to the rotary adhesive applicator, wherein the adhesive supply system provides adhesive to the rotary adhesive applicator;

[0011] The feeding mechanism, wherein the rotary adhesive applicator is located between the feeding mechanism and the bolt feeding system, the feeding mechanism operablely clamps the bolt and releases the bolt from the bolt station;

[0012] An industrial robot is equipped with a bolt picking device. The industrial robot drives the bolt picking device to pick up the bolt from the unloading mechanism and perform subsequent operations.

[0013] The aforementioned bolt adhesive application workstation also includes:

[0014] The bolt feeding system, the multi-station turntable mechanism, the rotary glue applicator, the glue supply system, and the unloading mechanism are all mounted on the workbench.

[0015] The aforementioned bolt adhesive application workstation, wherein the multi-station turntable mechanism includes:

[0016] A retaining ring is fixedly installed, the retaining ring is annular, and a zero-position scale is provided on the retaining ring;

[0017] A turntable is disposed within the combined retaining ring. The turntable is rotatable on its own axis and is provided with a zero-position pointer for positioning in conjunction with the zero-position scale.

[0018] A bolt fixture plate is provided on the turntable. The bolt fixture plates are arranged in a ring array with the axis of the turntable as the axis, and each bolt station is provided on one bolt fixture plate.

[0019] The aforementioned bolt gluing workstation, wherein the multi-station turntable mechanism further includes:

[0020] The liquid receiving box is arc-shaped and is located between the rotary glue application mechanism and the unloading mechanism. The liquid receiving box is located below the turntable, which is directly opposite the bolt station.

[0021] In the aforementioned bolt gluing workstation, the bolt station is a groove-shaped structure that extends through the turntable along the thickness direction and along the horizontal direction of the turntable to the edge of the turntable. The bolt station and the horizontal plane of the turntable form a "U" shape. The bolt station is located in the thickness direction of the turntable and has a conical groove structure that is larger at the top and smaller at the bottom and fits against the surface of the bolt.

[0022] The aforementioned bolt adhesive application workstation, wherein the rotary adhesive application mechanism includes:

[0023] A lifting and positioning fixture is provided below the turntable and is positioned directly opposite the bolt station. The lifting and positioning fixture can operably push the bolt out of the bolt station.

[0024] A sleeve fixture is provided above the turntable, and the sleeve fixture is provided with a bit that matches the head of the bolt;

[0025] A stepper motor is connected to the sleeve fixture, and the stepper motor drives the sleeve fixture to rotate, thereby causing the bolt to rotate;

[0026] A glue valve, which is connected to the glue supply system;

[0027] An adhesive application brush head is mounted on the adhesive valve and is used to apply adhesive to the bolt held by the sleeve fixture.

[0028] The aforementioned bolt adhesive application workstation, wherein the rotary adhesive application mechanism further includes:

[0029] A pneumatic swing cylinder is connected to the glue valve, and the pneumatic swing cylinder drives the glue valve to move in a horizontal first direction;

[0030] A linear guide rail, wherein the linear guide rail is vertically arranged, and one side of the glue valve is slidably connected to the linear guide rail;

[0031] A limiting cylinder is connected to the glue valve, and the limiting cylinder drives the glue valve to move up and down along the linear guide rail;

[0032] A limiting bracket is provided on one side of the limiting cylinder, and the limiting bracket indicates the extreme position of the limiting cylinder.

[0033] The aforementioned bolt adhesive application workstation, wherein the rotary adhesive application mechanism further includes:

[0034] A liquid receiving tray, which is annular and arranged around the lifting and positioning fixture.

[0035] The aforementioned bolt adhesive application workstation, wherein the unloading mechanism includes:

[0036] A horizontal cylinder claw clamp is provided below the turntable and is positioned directly opposite a bolt station. The horizontal cylinder claw clamp can operably clamp the bolt.

[0037] A material unloading lifting cylinder is provided, wherein the horizontal cylinder claw is mounted on the material unloading lifting cylinder, and the material unloading lifting cylinder can operably drive the horizontal cylinder claw to rise and drive the bolt to disengage from the bolt position.

[0038] A method of using a bolt adhesive application workstation, wherein the bolt adhesive application workstation as described above is used, and the method of use includes:

[0039] Step S1: The bolt feeding system conveys the bolt to the turntable, and the bolt enters the bolt station of the multi-station turntable. The turntable rotates one station at a time, and the bolt feeding system conveys one bolt to the bolt station at a time.

[0040] Step S2: The bolt is rotated to the rotary adhesive applicator, and the lifting and positioning fixture lifts the bolt so that the nut portion of the bolt enters the sleeve fixture;

[0041] Step S3: The stepper motor drives the sleeve fixture and the bolt to rotate, so that the bit on the sleeve fixture is fully engaged in the cross groove of the nut of the bolt, and the bolt is automatically adjusted to a vertical position after the above operation.

[0042] Step S4: The pneumatic swing cylinder drives the glue valve and the glue application brush head to the area to be glued and overlaps with the bolt;

[0043] Step S5: The adhesive supply system dispenses adhesive, which is applied to the bolt through the adhesive valve and the adhesive brush head. At the same time, the stepper motor drives the sleeve fixture and the bolt to rotate so that the adhesive is evenly applied to the bolt.

[0044] Step S6: The pneumatic swing cylinder drives the glue valve and the glue application brush head to the initial position, and the lifting and positioning fixture descends to reposition the bolt on the bolt station.

[0045] Step S7: The bolt is rotated to the unloading mechanism, the horizontal cylinder gripper holds the bolt, and the unloading lifting cylinder drives the horizontal cylinder gripper to rise, raising the bolt from the multi-station turntable to a certain height and detaching it from the turntable;

[0046] Step S8: The bolt picking device at the end of the industrial robot clamps the bolt, while the horizontal cylinder jaws release the bolt. The industrial robot completes the picking of the bolt and performs subsequent assembly and tightening processes.

[0047] Step S9: The material feeding mechanism's lifting cylinder descends to its initial position, the multi-station turntable rotates, and the mechanism automatically cycles through applying adhesive to the next bolt.

[0048] The present invention, by employing the above-mentioned technology, has the following positive effects compared with the prior art:

[0049] (1) This invention can replace manual execution of the adhesive application process for the bolts used in the assembly of brake drums, and has a high degree of automation, which is more effective in saving cycle time in the bolt adhesive application process; the operation of the mechanism does not require manual intervention, thus avoiding health problems caused by long-term contact between the human body and the adhesive.

[0050] (2) The present invention includes an automatic bolt feeding system and an industrial robot, which are easy to integrate into automated production lines, improve the level of factory automation and flexibility, and reduce labor costs.

[0051] (3) The safety of the present invention is improved after its application. The entire process of bolt gluing and cutting is automated and does not require manual intervention, keeping workers away from the bolt gluing process area and greatly improving the safety of workers. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the adhesive application section of the bolt adhesive application workstation of the present invention.

[0053] Figure 2 This is a schematic diagram of the industrial robot part of the bolt adhesive application workstation of the present invention.

[0054] Figure 3 This is a schematic diagram of the multi-station turntable mechanism of the bolt gluing workstation of the present invention.

[0055] Figure 4 This is a schematic diagram of the rotary adhesive application mechanism of the bolt adhesive application workstation of the present invention.

[0056] In the attached diagram: 1. Bolt feeding system; 2. Rotary glue application mechanism; 3. Multi-station turntable mechanism; 4. Unloading mechanism; 5. Workbench; 6. Glue supply system; 7. Bolt pickup device; 8. Industrial robot; 9. Bolt tooling plate; 10. Merging retaining ring; 11. Horizontal cylinder gripper; 12. Unloading lifting cylinder; 13. Liquid receiving box; 14. Stepper motor; 15. Sleeve tooling; 16. Glue application brush head; 17. Bolt; 18. Lifting positioning tooling; 19. Liquid receiving tray; 20. Limit cylinder; 21. Glue valve; 22. Limit bracket; 23. Linear guide rail; 24. Pneumatic swing cylinder; 25. Lifting cylinder; 26. Turntable. Detailed Implementation

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention. Figure 1 This is a schematic diagram of the adhesive application section of the bolt adhesive application workstation of the present invention;

[0058] Figure 2 This is a schematic diagram of the industrial robot part of the bolt gluing workstation of the present invention; Figure 3 This is a schematic diagram of the multi-station turntable mechanism of the bolt gluing workstation of the present invention; Figure 4 This is a schematic diagram of the rotary adhesive application mechanism of the bolt adhesive application workstation of the present invention. See also: Figures 1 to 4As shown, a preferred embodiment of a bolt gluing workstation includes: a bolt feeding system 1, a multi-station turntable mechanism 3, a rotary gluing mechanism 2, a glue supply system 6, a feeding mechanism 4, and an industrial robot 8. The multi-station turntable mechanism 3 is disc-shaped and rotates about its central axis. It has several bolt stations arranged in a ring around the central axis of the turntable mechanism 3. The bolt feeding system 1 sequentially feeds each bolt 17 to one bolt station; the rotary... The glue-applying mechanism 2 is located on one side of the multi-station turntable mechanism 3. The rotating glue-applying mechanism 2 applies glue to the bolt 17. The glue supply system 6 is connected to the rotating glue-applying mechanism 2 and provides glue to the rotating glue-applying mechanism 2. The rotating glue-applying mechanism 2 is located between the unloading mechanism 4 and the bolt feeding system 1. The unloading mechanism 4 can operate to clamp the bolt 17 and remove the bolt 17 from the bolt station. The industrial robot 8 is equipped with a bolt picking device 7. The industrial robot 8 drives the bolt picking device 7 to pick up the bolt 17 from the unloading mechanism 4 and perform subsequent operations.

[0059] In a preferred embodiment, it further includes:

[0060] The workbench 5, bolt feeding system 1, multi-station turntable mechanism 3, rotary glue applicator 2, glue supply system 6 and unloading mechanism 4 are all located on the workbench 5.

[0061] In a preferred embodiment, the multi-station turntable mechanism 3 includes:

[0062] The retaining ring 10 is fixedly installed and is annular in shape. A zero-position scale is provided on the retaining ring 10.

[0063] Turntable 26 is located inside the combined retaining ring 10. Turntable 26 can rotate on its own axis. Turntable 26 is provided with a zero pointer for positioning in conjunction with the zero ruler.

[0064] Bolt fixture plate 9 is set on turntable 26. The bolt fixture plates 9 are arranged in a ring array with the axis of turntable 26 as the axis, and each bolt station is set on a bolt fixture plate 9.

[0065] In a preferred embodiment, the multi-station turntable mechanism 3 further includes:

[0066] The liquid receiving box 13 is arc-shaped and is located between the rotary glue application mechanism 2 and the unloading mechanism 4. The liquid receiving box 13 is located below the turntable 26, which is directly opposite the bolt station.

[0067] In a preferred embodiment, the bolt station is grooved and extends through the turntable 26 along the thickness direction of the turntable 26 and along the horizontal direction of the turntable 26 to the edge of the turntable 26. The bolt station and the turntable 26 are U-shaped on the horizontal plane. The bolt station is a conical groove structure with a larger upper end and a smaller lower end that fits against the surface of the bolt 17 in the thickness direction of the turntable 26.

[0068] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0069] In addition to the above, the present invention also has the following embodiments:

[0070] In a further embodiment of the present invention, the rotary adhesive applicator 2 includes:

[0071] The lifting and positioning fixture 18 is located below the turntable 26 and is positioned directly opposite the bolt station. The lifting and positioning fixture 18 can operably push the bolt 17 out of the bolt station.

[0072] Sleeve fixture 15 is located above turntable 26 and has a bit that matches the head of bolt 17.

[0073] Stepper motor 14, stepper motor 14 is connected to sleeve fixture 15, stepper motor 14 drives sleeve fixture 15 to rotate and thus drives bolt 17 to rotate;

[0074] Adhesive valve 21 is connected to adhesive supply system 6;

[0075] The glue-applying brush head 16 is mounted on the glue valve 21 and applies glue to the bolt 17 held by the sleeve tooling 15.

[0076] In a further embodiment of the present invention, the rotary adhesive applicator 2 further includes:

[0077] Pneumatic swing cylinder 24 is connected to glue valve 21. Pneumatic swing cylinder 24 drives glue valve 21 to move in a horizontal first direction.

[0078] Linear guide 23 is vertically arranged, and one side of the glue valve 21 is slidably connected to the linear guide 23;

[0079] Limit cylinder 20 is connected to glue valve 21. Limit cylinder 20 drives glue valve 21 to move up and down along linear guide rail 23.

[0080] Limiting bracket 22 is located on one side of limiting cylinder 20 and indicates the extreme position of limiting cylinder 20.

[0081] In a further embodiment of the present invention, the rotary adhesive applicator 2 further includes:

[0082] The liquid receiving tray 19 is ring-shaped and is arranged around the lifting and positioning fixture 18.

[0083] In a further embodiment of the present invention, the feeding mechanism 4 includes:

[0084] A horizontal cylinder claw clamp is located below the turntable 26 and is positioned directly opposite a bolt station. The horizontal cylinder claw clamp can operably clamp the bolt 17.

[0085] The unloading lifting cylinder 12 and the horizontal cylinder claw are mounted on the unloading lifting cylinder 12. The unloading lifting cylinder 12 can operate to drive the horizontal cylinder claw to rise and drive the bolt 17 to disengage from the bolt position.

[0086] See Figures 1 to 4 The diagram illustrates a preferred embodiment of a bolt 17 adhesive application workstation, wherein the bolt 17 adhesive application workstation described above is used, and the method of use includes:

[0087] Step S1: The bolt feeding system 1 conveys bolts 17 to the turntable 26. Bolts 17 enter the bolt station of the multi-station turntable 26. The turntable 26 rotates one station at a time. The bolt feeding and conveying system conveys one bolt 17 to the bolt station at a time.

[0088] Step S2: The bolt 17 is rotated to the rotary glue applicator 2, and the lifting positioning fixture 18 lifts the bolt 17 so that the nut part of the bolt 17 enters the sleeve fixture 15.

[0089] Step S3: Stepper motor 14 drives sleeve fixture 15 and bolt 17 to rotate, so that the bit on sleeve fixture 15 is fully engaged in the cross groove of the nut of bolt 17. At the same time, bolt 17 is automatically adjusted to a vertical position after the above operation.

[0090] Step S4: The pneumatic cylinder 24 drives the glue valve 21 and the glue brush head 16 to the area to be glued and overlaps with the bolt 17;

[0091] Step S5: The glue supply system 6 dispenses glue, which is applied to the bolt 17 through the glue valve 21 and the glue brush head 16. At the same time, the stepper motor 14 drives the sleeve tooling 15 and the bolt 17 to rotate so that the glue is evenly applied to the bolt 17.

[0092] Step S6: The pneumatic swing cylinder 24 drives the glue valve 21 and the glue brush head 16 to the initial position, and the lifting positioning fixture 18 is lowered to place the bolt 17 back on the bolt station.

[0093] Step S7: The bolt 17 is rotated to the unloading mechanism 4, the horizontal cylinder gripper 11 clamps the bolt 17, and the unloading lifting cylinder 12 drives the horizontal cylinder gripper 11 to rise, raising the bolt 17 from the multi-station turntable 26 to a certain height and detaching it from the turntable 26.

[0094] Step S8: The bolt picking device 7 at the end of the industrial robot 8 clamps the bolt 17, while the horizontal cylinder gripper 11 releases the bolt 17. The industrial robot 8 completes the picking of the bolt 17 and performs subsequent assembly and tightening processes.

[0095] Step S9: The unloading lifting cylinder 12 of the unloading mechanism 4 descends to the initial position, the multi-station turntable 26 rotates, and the mechanism automatically cycles to apply glue to the next bolt 17.

[0096] In a preferred embodiment, the mechanism mainly consists of a bolt 17 multi-station turntable 26, an adhesive application mechanism, a material feeding mechanism 4, a workbench 5, and an adhesive supply system 6; wherein the bolt 17 multi-station turntable mechanism 3, the adhesive application mechanism, the material feeding mechanism 4, the workbench 5, and the adhesive supply system 6 are all mounted on the workbench 5.

[0097] In a preferred embodiment, the bolt 17 multi-station turntable mechanism 3 includes a multi-station turntable 26, a merging retaining ring 10, and a liquid receiving box 13.

[0098] In a preferred embodiment, multiple circumferentially evenly distributed bolt tooling plates 9 are installed at the edge of the multi-station turntable 26 for bolts 17. Driven by an electric motor, the bolts 17 are accurately transported from the feeding system to the gluing mechanism and the unloading mechanism 4 through precise rotation positioning.

[0099] In a preferred embodiment, a zero-position pointer is located at the edge of the turntable 26.

[0100] In a preferred embodiment, the bolt tooling plate 9 is U-shaped and has a countersunk hole at the center that matches the shape of the inclined surface of the bolt 17 nut, which can accurately fit and position the bolt 17 nut.

[0101] In a preferred embodiment, the retaining ring 10 is installed around the circumference of the tooling turntable 26 for positioning the bolts 17 on the multi-station turntable 26. The retaining ring has a zero-position scale for calibrating the electric motor zero position by corresponding to the zero-position pointer on the multi-station turntable 26.

[0102] In a preferred embodiment, the liquid collection box 13 is installed in the area between the glue application mechanism and the unloading mechanism 4 to collect the glue dripping during the conveying process after the bolt 17 is glued.

[0103] In a preferred embodiment, the glue application mechanism mainly consists of a bolt 17 glue application rotation mechanism, a lifting and positioning mechanism, a glue valve 21, a glue application brush head 16 swing mechanism, and a glue application height limiting mechanism, and is installed on one side of the bolt 17 multi-station turntable 26.

[0104] In a preferred embodiment, the bolt 17 adhesive application rotation mechanism mainly consists of a stepper motor 14, a bolt 17 sleeve fixture 15, and a bolt 17 bit. The bolt 17 sleeve fixture 15 is equipped with a bit of the corresponding model for the bolt 17, which is driven to rotate by the stepper motor 14 to realize the rotation drive for the bolt 17 adhesive application process.

[0105] In a preferred embodiment, the lifting and positioning mechanism comprises a lifting cylinder 25, a liquid receiving tray 19, and a rotary positioning fixture.

[0106] In a preferred embodiment, the oscillating mechanism of the glue valve 21 and the glue application brush head 16 includes a pneumatic swing cylinder 24, a connecting bracket, the glue valve 21, and the glue application brush head 16, which enables the glue application brush head 16 to automatically swing into and out of the glue application area of ​​the bolt 17 thread. The glue valve 21 and the glue application brush head 16 are connected to the glue supply system 6 through the air circuit and the glue supply liquid circuit, which enables the automatic glue dispensing from the end of the brush head and applying glue to the thread of the bolt 17.

[0107] In a preferred embodiment, the glue application height limiting mechanism consists of a cylinder, a limiting bracket 22, and a linear guide rail 23. The glue valve 21 and the glue application brush head 16 can move vertically along the linear guide rail 23. The cylinder is connected to the limiting bracket 22 to limit and adjust the height of the glue valve 21 and the glue application brush head 16.

[0108] In a preferred embodiment, the unloading mechanism 4 mainly consists of an unloading lifting cylinder 12 and a horizontal pneumatic gripper. The horizontal pneumatic gripper is installed at the end of the unloading lifting cylinder 12, which can realize the overall lifting after the gripper clamps the bolt 17, and automatically pick up the bolt 17 in conjunction with the unloading execution mechanism such as the robot.

[0109] In a preferred embodiment, the workbench 5 is divided into upper and lower layers. Other functional mechanisms are installed on the upper workbench surface, and electrical components such as motor drivers, controllers and cables required for the functional mechanisms, as well as pneumatic components such as solenoid valves, pressure regulating valves and air pipes, are installed on the lower layer.

[0110] In a preferred embodiment, the automatic glue application and unloading mechanism 4 for bolts 17 is applied in the robot assembly workstation for vehicle axle brake drums. It is installed at the robot bolt 17 picking point and is used in conjunction with the bolt 17 feeder and the industrial robot 8 to complete the glue application, picking, tightening and assembly of the automotive brake drum bolts 17.

[0111] In a preferred embodiment, the adhesive-coated bolt 17 is an M10 cross-slot bolt 17. The multi-station turntable 26 for bolts 17 has a total of 8 tooling plates and bolt stations for continuous conveying of bolts 17.

[0112] In a preferred embodiment, the operation flow of this device is as follows:

[0113] Bolt feeding system 1 conveys bolt 17 to the loading point of bolt 17 turntable 26. Bolt 17 enters the bolt station of multi-station turntable 26. Electric motor drives turntable 26 to rotate 45° each time, continuously conveying bolt 17 to the glue application mechanism.

[0114] The glue application mechanism automatically positions the bolt 17: the lifting and positioning mechanism lifts the bolt 17, so that the nut enters the bolt 17 sleeve fixture 15 of the glue application rotating mechanism; then the stepper motor 14 drives the sleeve fixture 15 and the bolt 17 to rotate one revolution, so that the sleeve bit is fully inserted into the cross groove of the bolt 17 nut, and at the same time the bolt 17 is automatically adjusted to a vertical position after the lifting, positioning and rotation.

[0115] The adhesive application mechanism applies adhesive to the bolt 17: the adhesive valve 21 and the adhesive brush head 16 are moved in by the pneumatic swing cylinder 24, so that the adhesive brush head 16 overlaps with the area of ​​the bolt 17 to be coated, and the adhesive supply system 6 dispenses adhesive from the brush head; at the same time, the stepper motor 14 of the adhesive application rotation mechanism drives the bolt 17 to rotate about three revolutions, completing the adhesive application to the threaded area of ​​the bolt 17. After the adhesive application is completed, the swing mechanism moves the adhesive valve 21 and the adhesive brush head 16 out, and the rotary positioning fixture of the lifting and positioning mechanism descends.

[0116] Bolt 17 lifting and unloading: The multi-station turntable 26 rotates, conveying the glued bolt 17 to the unloading mechanism 4. The unloading mechanism 4 uses pneumatic grippers to clamp the bolt 17, and then the lifting cylinder 25 lifts the bolt 17 from the multi-station turntable 26 to a certain height, detaching it from the tooling plate of the turntable 26.

[0117] Robot picks up bolt 17: The end effector of industrial robot 8 moves to the multi-station turntable 26 to lift bolt 17. The pneumatic gripper of unloading mechanism 4 opens, and at the same time, the robot picks up the bolt 17 after gluing and performs the subsequent bolt 17 assembly and tightening process. Then, the lifting cylinder 25 of unloading mechanism 4 descends, the multi-station turntable 26 rotates, and the mechanism automatically cycles to perform the next bolt 17 gluing process.

[0118] The above description is merely a preferred embodiment of the present invention and does not limit the implementation and protection scope of the present invention. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A bolt adhesive application workstation, characterized in that, include: Bolt feeding system; A multi-station turntable mechanism is provided, which is in the form of a disc and rotates around its central axis. The multi-station turntable mechanism is provided with a plurality of bolt stations, which are arranged in a ring array around the central axis of the multi-station turntable mechanism. The bolt feeding system sequentially feeds each bolt to one of the bolt stations. A rotary adhesive applicator is located on one side of the multi-station turntable mechanism, and the rotary adhesive applicator applies adhesive to the bolt. An adhesive supply system is connected to the rotary adhesive applicator, wherein the adhesive supply system provides adhesive to the rotary adhesive applicator; The feeding mechanism, wherein the rotary adhesive applicator is located between the feeding mechanism and the bolt feeding system, the feeding mechanism operablely clamps the bolt and releases the bolt from the bolt station; An industrial robot is equipped with a bolt picking device. The industrial robot drives the bolt picking device to pick up the bolt from the unloading mechanism and perform subsequent operations. The multi-station turntable mechanism includes a retaining ring and a turntable. The retaining ring is fixedly installed and is ring-shaped. A zero-position scale is provided on the retaining ring. The turntable is located inside the retaining ring and can rotate on its own axis. A zero-position pointer is provided on the turntable for positioning in conjunction with the zero-position scale. The bolt station is a groove-shaped structure that runs through the turntable along its thickness direction and extends to the edge of the turntable along its horizontal direction. The bolt station is U-shaped on the horizontal surface of the turntable. The bolt station has a conical groove structure with a larger upper end and a smaller lower end that fits against the surface of the bolt in the thickness direction of the turntable. The unloading mechanism includes a horizontal cylinder gripper and an unloading lifting cylinder. The horizontal cylinder gripper is located below the turntable and is positioned directly opposite a bolt station. The horizontal cylinder gripper can operably clamp the bolt. The unloading lifting cylinder is connected to the horizontal cylinder gripper and can operably drive the horizontal cylinder gripper to rise and disengage the bolt from the bolt station.

2. The bolt adhesive application workstation according to claim 1, characterized in that, Also includes: The bolt feeding system, the multi-station turntable mechanism, the rotary glue applicator, the glue supply system, and the unloading mechanism are all mounted on the workbench.

3. The bolt adhesive application workstation according to claim 1, characterized in that, The merging retaining ring is fixedly installed; A bolt fixture plate is provided on the turntable. The bolt fixture plates are arranged in a ring array with the axis of the turntable as the axis, and each bolt station is provided on one bolt fixture plate.

4. The bolt adhesive application workstation according to claim 3, characterized in that, The multi-station turntable mechanism also includes: The liquid receiving box is arc-shaped and is located between the rotary glue application mechanism and the unloading mechanism. The liquid receiving box is located below the turntable, which is directly opposite the bolt station.

5. The bolt adhesive application workstation according to claim 4, characterized in that, The rotary adhesive application mechanism includes: A lifting and positioning fixture is provided below the turntable and is positioned directly opposite the bolt station. The lifting and positioning fixture can operably push the bolt out of the bolt station. A sleeve fixture is provided above the turntable, and the sleeve fixture is provided with a bit that matches the head of the bolt; A stepper motor is connected to the sleeve fixture, and the stepper motor drives the sleeve fixture to rotate, thereby causing the bolt to rotate; A glue valve, which is connected to the glue supply system; An adhesive application brush head is mounted on the adhesive valve and is used to apply adhesive to the bolt held by the sleeve fixture.

6. The bolt adhesive application workstation according to claim 5, characterized in that, The rotary adhesive application mechanism also includes: A pneumatic swing cylinder is connected to the glue valve, and the pneumatic swing cylinder drives the glue valve to move in a horizontal first direction; A linear guide rail, wherein the linear guide rail is vertically arranged, and one side of the glue valve is slidably connected to the linear guide rail; A limiting cylinder is connected to the glue valve, and the limiting cylinder drives the glue valve to move up and down along the linear guide rail; A limiting bracket is provided on one side of the limiting cylinder, and the limiting bracket indicates the extreme position of the limiting cylinder.

7. The bolt adhesive application workstation according to claim 6, characterized in that, The rotary adhesive application mechanism also includes: A liquid receiving tray, which is annular and arranged around the lifting and positioning fixture.

8. A method for using a bolt adhesive application workstation, characterized in that, The bolt adhesive application workstation as described in claim 7 is used, wherein the method of use includes: Step S1: The bolt feeding system conveys the bolt to the turntable, and the bolt enters the bolt station of the multi-station turntable. The turntable rotates one station at a time, and the bolt feeding system conveys one bolt to the bolt station at a time. Step S2: The bolt is rotated to the rotary adhesive applicator, and the lifting and positioning fixture lifts the bolt so that the nut portion of the bolt enters the sleeve fixture; Step S3: The stepper motor drives the sleeve fixture and the bolt to rotate, so that the bit on the sleeve fixture is fully engaged in the cross groove of the nut of the bolt, and the bolt is automatically adjusted to a vertical position after the above operation. Step S4: The pneumatic swing cylinder drives the glue valve and the glue application brush head to the area to be glued and overlaps with the bolt; Step S5: The adhesive supply system dispenses adhesive, which is applied to the bolt through the adhesive valve and the adhesive brush head. At the same time, the stepper motor drives the sleeve fixture and the bolt to rotate so that the adhesive is evenly applied to the bolt. Step S6: The pneumatic swing cylinder drives the glue valve and the glue application brush head to the initial position, and the lifting and positioning fixture descends to reposition the bolt on the bolt station. Step S7: The bolt is rotated to the unloading mechanism, the horizontal cylinder gripper holds the bolt, and the unloading lifting cylinder drives the horizontal cylinder gripper to rise, raising the bolt from the multi-station turntable to a certain height and detaching it from the turntable; Step S8: The bolt picking device at the end of the industrial robot clamps the bolt, while the horizontal cylinder jaws release the bolt. The industrial robot completes the picking of the bolt and performs subsequent assembly and tightening processes. Step S9: The material feeding mechanism's lifting cylinder descends to its initial position, the multi-station turntable rotates, and the mechanism automatically cycles through applying adhesive to the next bolt.

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