Jig attaching apparatus with automatic correction device

Abstract

A jig fitting device with automatic correction device, the jig conveying track module is used for conveying empty jig base to the jig jacking platform, and conveying the fitted jig base to the unloading place; the jig upper cover conveying track module is used for conveying the jig upper cover in the material box to the specified position; the gantry suction correction module is used for sucking the jig upper cover at the specified position to the jig base on the jig jacking platform, and also used for detecting whether the camera module deviates from the groove of the jig base, and correcting the position of the camera module deviating from the groove of the jig base; the material box clamping module clamps the material box loaded with the jig upper cover from the material box feeding module to the jig upper cover conveying track module; also used for clamping the empty material box to the material box unloading module. The application of the above device can realize the functions of automatic correction device and fitting of the camera module in the jig.

Description

Technical Field

[0001] This invention relates to the field of camera module installation, and more particularly to a fixture bonding device with an automatic correction mechanism. Background Technology

[0002] In certain processing steps, camera modules need to be fixed to a fixture. The fixture consists of two parts: an upper cover and a base, connected by a spring-loaded steel strip locking mechanism. The camera module is first placed into a groove in the base. Then, a device pushes out the spring-loaded steel strip of the upper cover, allowing it to be precisely fitted onto the base. After the spring-loaded steel strip passes smoothly through the locking groove in the base, the force on the strip is removed, and it returns to its original shape, firmly locking into the locking groove in the base. This completes the process of fixing the camera module in the fixture. During the camera module fixture bonding process, the module is placed into the groove of the fixture base at the previous station and then conveyed to the bonding equipment. During transport, there is a certain probability that it will move out of the groove due to vibration or other reasons. This can cause the upper cover to directly press onto the camera module during the upper cover bonding process, often resulting in bonding failure or even direct damage to the module itself. Existing equipment typically addresses the issue of module misalignment during the upper and lower cover bonding process, leading to damage, using two main approaches: 1. Assuming the product's position in the fixture is accurate and performing no additional processing during bonding. This method is prone to bonding failure or product damage. 2. Using a machine camera vision system to check the product's position before bonding. If the product is found to be incorrectly positioned on the base, the machine stops with an alarm, waiting for the user to resolve the issue before resuming operation. While this method avoids the problems of the first approach, it often results in excessive downtime, significantly impacting production efficiency and potentially causing the entire production line to be interrupted. Furthermore, existing bonding equipment suffers from several other issues: the fixture positioning platform generally uses a cylinder structure, causing impact upon stopping and limiting the compatible material box height range. The upper and lower material box clamping mechanisms lack anti-collision and jamming devices, frequently resulting in material damage during operation. Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution:

[0004] A fixture bonding device with an automatic correction mechanism includes a fixture conveying track module, a gantry suction and correction module, a fixture cover conveying track module, a material box clamping module, a material box unloading module, and a material box loading module.

[0005] 1. The jig conveyor rail module is used to transport empty jig bases to the jig lifting platform. The jig lifting platform is used to provide a platform for the jig bases to be fitted. After the fitting is completed, the jig conveyor rail module transports the fitted jig bases to the unloading point.

[0006] 2. The jig cover conveyor track module is used to transport the jig cover to the designated location;

[0007] 3. The gantry suction and correction module is used to suction the top cover of the fixture at a designated position and attach it to the fixture base at the fixture lifting platform. It is also used to detect whether the camera module has shifted out of the groove of the fixture base and to correct the position of the camera module that has shifted out of the groove of the fixture base.

[0008] 4. The material box clamping module clamps the material box loaded with the fixture cover from the material box loading module and transfers it to the loading area of ​​the fixture cover conveyor track module; it is also used to clamp empty material boxes to the material box unloading module.

[0009] Specifically, the gantry suction and correction module includes a first drive device, a camera mechanism, a correction mechanism, and a top cover suction mechanism;

[0010] The camera mechanism is used to capture and detect whether the camera module has shifted out of the groove of the fixture base; the camera mechanism uses an industrial camera with vision inspection function, which has high-precision inspection efficiency.

[0011] The correction mechanism includes a correction fixing frame, a stepper motor, a home point sensor, a floating plate, an eccentric wheel, and a correction plate. The correction fixing frame and the home point sensor are fixedly installed on the floating plate. The correction plate has multiple correction slots, the positions and dimensions of which correspond to the positions and dimensions of the slot covers on the fixture's upper cover. Each correction slot has a raised edge around its perimeter. The floating plate has an eccentric wheel hole. The stepper motor is installed on the floating plate, and the drive end of the stepper motor passes through the eccentric wheel hole and connects to the eccentric wheel. The eccentric wheel is located in the eccentric wheel hole and abuts against a sliding plate. The sliding plate and the floating plate are slidably connected. The sliding plate and the floating plate are connected by a tension spring to slide and limit the sliding direction of the sliding plate. The correction plate and the floating plate are connected by a bracket.

[0012] The top cover suction mechanism includes a cylinder suction bracket, a pressure switch, a first suction plate, a second suction plate, a ejector pin mechanism, a vacuum suction mechanism, and a guide positioning mechanism. The suction bracket and pressure switch are fixedly installed on the first suction plate, and the second suction plate is arranged parallel to and directly below the first suction plate. The guide positioning mechanism includes a guide positioning pin, a guide bushing, and a compression spring. The guide positioning pin connects to the guide bushing, and the compression spring is sleeved on the guide positioning pin. The guide positioning pin is installed on the second suction plate, with one end extending out of the second suction plate. During the downward pressing process, the second suction plate moves according to the guide, then contacts the top cover of the fixture and inserts into the positioning pin hole of the top cover to fix the top cover of the fixture. The guide range is compatible with a cover position deviation of ±1mm. Due to the action of the compression spring, the second suction plate also automatically retracts back to its original position. The vacuum suction mechanism is installed on the second suction plate and is used to suction the top cover of the fixture. The ejector pin mechanism is used to eject the spring clips on the top cover of the fixture. The ejector pin mechanism includes a cylinder, a guide post, a guide bushing, and multiple ejector pins connected as one unit. Multiple integrated ejector pins are mounted on the second adsorption plate, and the ejector pins can penetrate the bottom surface of the second adsorption plate. A cylinder is mounted on the first adsorption plate, and the driving end of the cylinder penetrates the first adsorption plate and connects to the multiple integrated ejector pins. When the cylinder works, it can drive the ejector pins to be ejected from the bottom surface of the second adsorption plate. A guide post is connected to a guide bushing, and the two ends of the guide post are respectively connected to the first adsorption plate and the second adsorption plate. This ensures that when the cylinder presses down and ejects the ejector pins, the second adsorption plate does not tilt under force.

[0013] The top cover suction mechanism's correction fixing frame, the correction mechanism's suction fixing frame, and the camera mechanism are respectively connected to the first driving device, and the first driving device drives the top cover suction mechanism, the correction mechanism, and the camera mechanism to move in the horizontal or vertical direction.

[0014] Specifically, the material box clamping module includes a transfer mechanism and a clamping mechanism;

[0015] The transplanting mechanism includes a second drive unit and a first anti-collision mechanism;

[0016] The clamping mechanism includes a housing, an upper jaw and a lower jaw that cooperate to clamp materials, and a second anti-collision mechanism for detecting whether the lower jaw is impacted; a clamping sensor is installed on the upper jaw; a third drive device is connected to the upper jaw and the lower jaw respectively, and simultaneously drives the upper jaw and the lower jaw to perform lifting and lowering movements; a fourth drive device is connected to the lower jaw and only drives the upper jaw to move towards the lower jaw; the second anti-collision mechanism is connected to the lower jaw and the third drive device respectively; the second anti-collision mechanism, the third drive device, and the fourth drive device are disposed inside the housing.

[0017] The drive end of the second drive unit is connected to the housing, and the entire drive clamping mechanism moves in the horizontal direction. The first anti-collision mechanism is used to detect whether it is impacted in the horizontal direction.

[0018] Furthermore, an origin sensor is installed on the upper gripper.

[0019] Furthermore, the third drive unit includes a ball screw with an anti-collision screw nut, one end of which is connected to a servo motor, and the lower jaw is connected to the anti-collision screw nut.

[0020] Furthermore, the second anti-collision mechanism includes a sensor, multiple tension springs, and an alarm. An anti-collision frame is connected to the lower gripper, and an anti-collision screw nut is fitted inside the anti-collision frame. Tension spring guide grooves are provided through both sides of the anti-collision frame, and tension springs are set in the tension spring guide grooves. Multiple tension springs surround the anti-collision screw nut and are connected end to end to fix the lower gripper and the anti-collision screw nut relative to each other. The sensor is fixedly installed on the lower gripper and is electrically connected to the alarm. The sensor detects the relative distance between the lower gripper and the anti-collision screw nut.

[0021] Furthermore, the sensor is a slotted photoelectric sensor. The sensing element of the slotted photoelectric sensor is mounted on the backlash-free lead screw nut, and the sensing slot of the slotted photoelectric sensor is mounted on the lower jaw. The positions of the sensing element and the sensing slot correspond.

[0022] Furthermore, the tension spring guide groove includes a first guide groove and a second guide groove. Both the first guide groove and the second guide groove are cylindrical. The first guide groove has a circular cross-section, and the second guide groove has a waist-shaped cross-section.

[0023] Furthermore, the fourth drive device includes a DC motor and a trapezoidal lead screw connected to the DC motor drive; the DC motor is fixedly mounted on the lower jaw, and the trapezoidal lead screw is provided with a backlash-free lead screw nut, which is connected to the upper jaw.

[0024] Specifically, the jig lifting platform includes a fixed plate, a positioning frame, a vacuum suction unit, a stepper motor, an eccentric mechanism, a material-blocking cylinder, and a position sensor. The positioning frame is connected to the fixed plate via guide columns. A suction plate is fixedly installed on the top surface of the positioning frame. The vacuum suction unit is fixedly installed on the suction plate and is used to suction the jig base. The eccentric mechanism abuts against the positioning frame, and the drive end of the stepper motor is connected to the eccentric mechanism, driving the eccentric mechanism to rotate and causing the positioning frame to move up and down. The material-blocking cylinder is mounted next to the positioning frame and is used to limit the position of the jig base. The position sensor is installed on the bottom surface of the positioning frame and is used to detect the height at which the positioning frame is raised or lowered.

[0025] Specifically, the material box unloading module includes a longitudinal pushing mechanism, a lateral moving mechanism, a blocking mechanism, and a clamping mechanism;

[0026] The longitudinal pushing mechanism includes: a pushing cylinder, a pushing block, a pushing linear guide rail and a discharging linear guide rail with the driving direction in the longitudinal direction, and a clamping block;

[0027] The blocking mechanism includes a blocking cylinder and a blocking block. The driving end of the blocking cylinder is connected to the blocking block and drives the blocking block to move up and down.

[0028] The lateral movement mechanism includes a fixed base plate and a transplanting cylinder mounted on the fixed base plate with a lateral driving direction; the driving end of the transplanting cylinder is connected to a connecting plate.

[0029] The feeding linear guide and feeding cylinder are mounted on the connecting plate. The feeding cylinder is positioned next to the feeding linear guide. A feeding block is connected to the drive end of the feeding cylinder. The feeding cylinder pushes the feeding block to move on the feeding linear guide. The unloading linear guide is mounted on the connecting plate. A clamping block is used to support the empty material box. The clamping block is mounted on the unloading linear guide. A blocking cylinder is located at one end of the unloading linear guide to restrict the movement of the clamping block longitudinally. A clamping mechanism is mounted on the connecting plate to clamp the empty material box.

[0030] The working process of the empty material box unloading module is as follows: the empty material box is placed on the clamping block, the blocking cylinder rises, the clamping mechanism clamps the material box, the transfer cylinder moves the empty material box to the unloading position, the clamping mechanism releases the empty material box, the blocking cylinder descends, and the pushing cylinder pushes the empty material box to the unloading position through the pushing block, thus completing the unloading of the empty material box.

[0031] An automatic calibration method for jig fitting, using the aforementioned jig fitting device with an automatic calibration mechanism, includes the following steps:

[0032] Step S1: The fixture base is sent from the fixture conveying track module to the fixture lifting and positioning platform. At the same time, the material box with the fixture cover is loaded into the loading area through the material box loading module.

[0033] Step S2: The material box clamping module clamps the material box in the feeding area to the feeding position of the designated fixture cover conveying track module. The fixture cover is taken out of the material box by the grippers on the fixture cover conveying track module. The distance that the cover needs to move is determined by the photoelectric sensor, and the fixture cover is gripped to the designated position.

[0034] Step S3: The camera mechanism moves to the top of the fixture and uses the camera to determine whether the camera module has shifted out of the groove of the fixture base; if it is determined that all modules on the fixture base are in the groove, then proceed to the bonding process in step S5; otherwise, proceed to step S4.

[0035] Step S4: When one or more camera modules offset out of the groove, determine the distance the camera module has offset out of the groove:

[0036] If the distance of the groove at the offset point exceeds the threshold of the automatic adjustment range, the machine will alarm and require manual handling. When the user manually puts the module into the groove, the machine can choose to automatically resume operation and then proceed to step S5.

[0037] Otherwise, the correction mechanism of the gantry straightening suction module moves to 0.05-0.1mm directly above the fixture base to correct the position of the camera module, so that the camera module re-enters the groove; then the camera mechanism moves to directly above the fixture to determine whether the camera module has shifted out of the groove of the fixture base. If the camera module still shifts out of the groove, proceed to step S4 again; otherwise, proceed to step S5.

[0038] Step S5: Enter the jig top cover picking process: The top cover suction mechanism moves to directly above the jig top cover, corrects the position of the jig top cover and then picks up the jig top cover, while simultaneously opening the spring clip on the jig top cover;

[0039] Step S6: Enter the process of fitting the fixture base: Transfer the fixture cover to the fixture base located on the lifting and positioning platform, and fit the fixture cover with the fixture base. After the fitting is completed, the fixture positioning and lifting mechanism descends, and then the fitted fixture is transported to the next station through the fixture conveying track module.

[0040] Step S7: Repeat the above steps until all the fixture covers in the material box are properly fitted; unload the empty material box using the material box unloading module.

[0041] The device of this invention achieves uninterrupted automatic correction of the bonding equipment through the following design, and has the following advantages:

[0042] 1. Add a machine camera vision module to perform visual inspection before bonding to determine the specific position of the module on the fixture base;

[0043] 3. The innovative automatic correction mechanism can process all modules of the fixture at the same time, automatically pushing the misaligned modules into the base groove, reducing manual intervention. The equipment can run continuously for more than 4 hours, improving production efficiency by more than 20%.

[0044] 4. Fully automated operation reduces manual labor time and connects with upstream and downstream equipment to achieve online production;

[0045] 5. By using industrial cameras to visually determine product position, product loss caused by the bonding process is completely eliminated. The anti-collision design of the material box mechanism also eliminates damage to the fixture cover during transport. The damage rate of this bonding process is 0%. Attached Figure Description

[0046] Figure 1 This is a structural diagram of a jig bonding device with an automatic correction mechanism;

[0047] Figure 2 This is a schematic diagram of the internal structure of a fixture bonding device with an automatic correction mechanism.

[0048] Figure 3 This is a top view of the fixture base;

[0049] Figure 4 This is a top view of the fixture's top cover;

[0050] Figure 5 This is a schematic diagram of the gantry suction and correction module in a fixture bonding device with an automatic correction mechanism;

[0051] Figure 6 This is a schematic diagram of the correction mechanism in a jig fitting device with an automatic correction device;

[0052] Figure 7 This is a bottom view of the correction mechanism in a jig fitting device with an automatic correction device;

[0053] Figure 8 This is a schematic diagram of the corrective plate in the corrective mechanism;

[0054] Figure 9 This is a schematic diagram of the upper cover suction mechanism. Figure 1 ;

[0055] Figure 10 This is a schematic diagram of the upper cover suction mechanism. Figure 2 ;

[0056] Figure 11 This is a schematic diagram of the material box clamping module in a fixture bonding device with an automatic correction mechanism;

[0057] Figure 12 yes Figure 11 A magnified view of the structure at point D in the middle;

[0058] Figure 13 yes Figure 12 A magnified view of the structure at point A in the middle;

[0059] Figure 14 yes Figure 13 A magnified view of the structure at point B in the middle;

[0060] Figure 15 Figure 14 Enlarged view of a portion of the structure of the first guide groove;

[0061] Figure 16 This is a structural diagram of a material box unloading module in a jig bonding device with an automatic correction mechanism;

[0062] Figure 17 This is a schematic diagram of the fixture lifting platform in a fixture bonding device with an automatic correction mechanism.

[0063] Figure 18 yes Figure 17 Enlarged schematic diagram of the local structure at point C;

[0064] Figure 19 yes Figure 11 Schematic diagram of the transplanting mechanism;

[0065] Reference numerals: 1. Camera mechanism; 101. Camera; 102. First drive device;

[0066] 2. Fixture upper cover conveyor track module;

[0067] 3. Material box clamping module;

[0068] 3-1 Transplanting mechanism; 3-101 Second drive device; 3-102 First anti-collision mechanism;

[0069] 3-2 Upper gripper; 3-201 Origin sensor; 3-202 Clamping sensor;

[0070] 3-3 Lower gripper; 3-301 First guide groove; 3-302 Tension spring; 3-303 Sensor plate; 3-304 Second guide groove; 3-305 Sensor groove; 3-306 Anti-collision bracket;

[0071] 3-4 Third drive unit; 3-401 Ball screw; 3-402 Servo motor; 3-403 Anti-collision screw nut;

[0072] 3-5 Fourth drive unit; 3-501 Trapezoidal lead screw; 3-502 DC motor; 3-503 Backlash-free lead screw nut

[0073] 4. Correctional institutions;

[0074] 401 Floating plate; 402 Correcting plate; 4021 Raised edge; 403 Stepper motor; 404 Eccentric wheel; 405 Cross ball guide rail; 406 Tension spring; 407 Correcting fixing bracket; 408 Eccentric wheel hole; 409 Positioning pin; 410 Origin sensor; 411 Sliding plate;

[0075] 5. Top cover suction mechanism;

[0076] 501 First adsorption plate; 502 Guide positioning pin; 503 Ejector pin; 504 Suction fixing frame; 505 Cylinder; 506 Second adsorption plate; 507 Vacuum adsorption mechanism; 508 Pressure switch;

[0077] 601 Spring clip; 602 Fixture top cover; 603 Recessed groove of fixture base; 604 Locating pin hole of fixture top cover; 605 Locating pin hole of fixture base;

[0078] 7. Fixture conveyor track module;

[0079] 701 Positioning frame; 702 Vacuum adsorber; 703 Blocking block; 704 Stepper motor; 705 Eccentric wheel; 706 Guide post; 707 Tension spring; 708 Coaxial fiber optic sensor; 709 Fixing plate; 710 Guide rail; 711 Material blocking cylinder;

[0080] 8-piece feeding box module;

[0081] 801 Material pushing linear guide; 802 Material pushing block; 803 Material unloading linear guide; 804 Material pushing cylinder; 805 Blocking cylinder; 806 Clamping cylinder; 807 Transfer cylinder; 808 Clamping block; 809 Fixed base plate; 810 Connecting plate. Detailed Implementation

[0082] The following is combined Figures 1 to 19 The present invention will be further described below.

[0083] A fixture bonding device with an automatic correction device includes a fixture conveying track module 7, a gantry suction and correction module, a fixture upper cover conveying track module 2, a material box clamping module 3, a material box unloading module 8, and a material box loading module.

[0084] 1. The jig conveying track module 7 is used to transport empty jig bases to the jig lifting platform. The jig lifting platform is used to provide a platform for the jig bases to be fitted. After the fitting is completed, the jig conveying track module 7 transports the fitted jig bases to the unloading point.

[0085] The jig lifting platform could originally achieve this function using a material-blocking cylinder 711, which is relatively low-cost. However, because the material-blocking cylinder 711 causes an impact when it stops, it affects the position of the product in the jig, causing the camera module to pop out. Furthermore, the lifting height is not adjustable. Based on these drawbacks, the jig lifting platform of this invention includes a fixed plate 709, a positioning frame 701, a vacuum suction unit 702, a stepper motor 704, an eccentric wheel 705 connected to a rotating shaft, a material-blocking cylinder 711, and a position sensor. The positioning frame 701 is connected to the fixed plate 709 via guide posts 706. A suction plate is fixedly mounted on the top surface of the positioning frame 701. The vacuum suction unit 702 is fixedly mounted on the suction plate and used to suction the jig base. The eccentric wheel 705 abuts against the positioning frame 701, and the drive end of the stepper motor 704 is connected to the rotating shaft of the eccentric wheel 705, driving the eccentric wheel 705 to rotate, causing the positioning frame 701 to move up and down. The material blocking cylinder 711 is mounted next to the positioning frame 701 and is used to limit the position of the fixture base; the fixed plate 709 is equipped with a slotted photoelectric switch to detect the height of the positioning frame 701 being raised or lowered; the positioning frame 701 is equipped with a corresponding coaxial fiber optic sensor 708 to detect whether the flow direction and position of the fixture are correct; and the positioning frame 701 is equipped with a positioning pin 409.

[0086] A stepper motor 704 drives the eccentric wheel 705 to rotate, thereby lifting the entire assembly. This achieves a shock-free lifting process, ensuring the stability of the product within the fixture. The lifting height is adjustable and can be stopped arbitrarily between the highest and lowest positions. The stepper motor 704 also features overvoltage protection; it will lose its steps if subjected to torque exceeding its own torque. The material-stopping cylinder 711 consists of a guide rail 710, the cylinder itself, and a blocking block 703. The guide rail 710 is located next to the positioning frame 701, and the cylinder 711 is mounted on it. The drive end of the cylinder 711 is connected to the blocking block 703. This design allows for compatibility with fixture bases of different lengths (180-300mm) in both vertical and horizontal directions, reducing the time and cost of replacing the cylinder 711.

[0087] It can achieve functions such as positioning and fixing of fixtures, and determining whether the flow direction of the product is correct.

[0088] Workflow: The fixture base is conveyed to the blocking block 703 via a belt. At this time, one fiber optic sensor on the positioning frame 701 determines that the fixture base has been positioned, and another fiber optic sensor determines whether the conveying direction of the fixture is correct based on the features on the fixture base. Then, the fixture base is smoothly lifted by the eccentric wheel, and the fixture base is positioned by the positioning pin. After reaching the position, the material blocking cylinder 711 descends, opens the vacuum adsorber 702, and fixes the fixture. The vacuum adsorber 702 further secures the fixture. The pressure value on the vacuum adsorber 702 (equipped with a pressure gauge, a certain pressure is required to ensure secure adhesion) determines whether the fixture is fixed. After fixing, the product is inspected and the fixture cover 602 is attached.

[0089] 2. The fixture cover conveyor track module 2 is used to transport the fixture cover to the designated location;

[0090] 3. The gantry suction and correction module is used to suction the fixture cover at a designated position and attach it to the fixture base at the fixture lifting platform. It is also used to detect whether the camera module has shifted out of the groove 603 of the fixture base and to correct the position of the camera module that has shifted out of the groove 603 of the fixture base.

[0091] The gantry suction and correction module includes a first drive device 102, a camera mechanism 1, a correction mechanism 4, and an upper cover suction mechanism 5;

[0092] 3.1 The camera mechanism 1 is used to capture and detect whether the camera module has shifted out of the groove 603 of the fixture base; the camera mechanism 1 uses an industrial camera 1 with vision detection function, which has high-precision detection efficiency.

[0093] 3.2 The correction mechanism 4 includes a correction fixing frame 407, a stepper motor 403, an origin sensor 401, a floating plate 401, an eccentric wheel 705, and a correction plate 402; the correction fixing frame 407 and the origin sensor 401 are fixedly installed on the top surface of the floating plate 401; the correction plate 402 has multiple correction grooves, the position and size of which correspond to the position and size of the groove cover on the fixture cover 602; each correction groove has a raised edge 4021 around its perimeter, which scrapes the camera module that is not in the groove 603 to return it to its original position. An eccentric wheel hole 408 is provided on the floating plate 401. A stepper motor 403 is mounted on the top surface of the floating plate 401, and the drive end of the stepper motor 403 passes through the eccentric wheel hole 408 and connects to the eccentric wheel. The eccentric wheel is set in the eccentric wheel hole 408 and abuts against the sliding plate 411. The eccentricity of the eccentric wheel is 0.2mm, ensuring that the straightening plate 402 can correct the product deviation of ±0.2mm. The sliding plate 411 and the floating plate 401 are slidably connected by a cross ball bearing guide 405. The cross ball bearing guide 405 can ensure that the eccentric wheel can move in the x or y direction, ensuring the relative movement of the floating plate 401 and the sliding plate 411. The sliding plate 411 and the floating plate 401 are connected by a tension spring 406 to reset the sliding direction of the sliding plate 411. The tension spring 406 ensures that the eccentric wheel is always in close contact with the side plate. The straightening plate 402 and the floating plate 401 are connected by a bracket. A positioning pin 409 is installed on the correction fixing frame 407. The positioning pin 409 connects the correction plate 402 and the floating plate 401 in the vertical direction. The positioning pin 409 cooperates with the motor origin to ensure that the correction plate 402 is in the middle of the fixing plate 709, thereby ensuring the correctness of the camera module correction. A compression spring is fitted on the positioning pin 409 to ensure that the positioning pin 409 is initially in the retracted state and does not affect the movement of the correction plate 402.

[0094] 3.3 Similar vacuum suction cup mechanisms on the market are used to adsorb the top cover 602 of the fixture, but they generally only have a structure for fixing the suction cup, while the areas without suction cups are hollowed out or lack related fixing parts, which increases both the weight of the fixture and the cost. Therefore, the top cover suction mechanism 5 of this invention includes a suction fixing frame 504, a pressure switch 508, a first suction plate 501, a second suction plate 506, a pin mechanism, a vacuum suction mechanism 507, a pressure switch 508, and a guide positioning mechanism; the suction fixing frame 504 and the pressure switch are fixedly installed on the first suction plate 501, and the second suction plate 506 is arranged parallel to the first suction plate 501 directly below it. The guide positioning mechanism includes a guide positioning pin 502, a guide bushing, and a compression spring. The guide positioning pin 502 is connected to the guide bushing, and the compression spring is sleeved on the guide positioning pin 502. The guide positioning pin 502 is installed on the second suction plate 506, and one end protrudes from the second suction plate 506. During the downward pressing process, the second adsorption plate 506 moves according to the guide, then contacts the fixture cover 602 and inserts into the positioning pin hole 604 of the fixture cover to fix the fixture cover 602. The guide range is compatible with a cover position deviation of ±1mm. Due to the action of the compression spring, the second adsorption plate 506 also automatically retracts back to its original position. The vacuum adsorption mechanism 507 is installed on the second adsorption plate 506 and is used to pick up the fixture cover 602. The ejector mechanism is used to eject the spring clip 601 on the fixture cover 602. The ejector mechanism includes a cylinder 505, a guide post, a guide bushing, and multiple ejector pins 503 connected as one unit. Multiple integrated ejector pins 503 are mounted on the second adsorption plate 506, and the ejector pins 503 can penetrate the bottom surface of the second adsorption plate 506. A cylinder 505 is mounted on the first adsorption plate 501, and the driving end of the cylinder 505 penetrates the first adsorption plate 501 and is connected to the multiple integrated ejector pins 503. When the cylinder 505 is working, it can drive the ejector pins 503 to be ejected from the bottom surface of the second adsorption plate 506. A guide post is connected to a guide bushing, and the two ends of the guide post are respectively connected to the first adsorption plate 501 and the second adsorption plate 506. This ensures that when the cylinder 505 presses down on the ejector pins 503 to eject them, the second adsorption plate 506 does not tilt under the force.

[0095] The working process of the upper cover suction mechanism 5 is as follows: The upper cover suction mechanism 5 moves to directly above the upper cover 602 of the fixture, and then descends to a position 0.05-0.1mm above the upper cover 602 of the fixture. Then, the upper cover 602 of the fixture is limited and fixed by the guide positioning pin 502. The vacuum pump is turned on to suction the upper cover 602 of the fixture. When the pressure switch 508 value reaches -80Kpa, the upper cover suction mechanism 5 is raised to the moving position. The cylinder 505 drives the ejector pin mechanism to push out the spring piece on the upper cover 602 of the fixture. At the same time, the mechanism moves to directly above the fixture base and descends to a position 0-0.05mm above the fixture base. During this period, the cover is guided into the positioning pin of the fixture base by the guide positioning pin 502 to ensure the accuracy of the relative position of the cover and the fixture. After the vacuum is turned off, the cylinder 505 drives the ejector pin to retract, and the upper cover suction mechanism 5 is moved away, completing one process.

[0096] In order to enable the camera mechanism 1, the correction mechanism 4, and the top cover suction mechanism 5 to move, the correction fixing frame 407 of the top cover suction mechanism 5, the suction fixing frame of the correction mechanism 4, and the camera mechanism 1 are respectively connected to the first driving device 102, and the first driving device 102 drives the top cover suction mechanism 5, the correction mechanism 4, and the camera mechanism 1 to move in the horizontal or vertical direction.

[0097] 4. The box clamping module 3 clamps the box loaded with the fixture cover 602 from the box loading module and transfers it to the loading area of ​​the fixture cover conveyor track module 2; it is also used to clamp empty boxes to the box unloading module 8. The box clamping module 3 includes a transfer mechanism 3-1 and a clamping mechanism.

[0098] 4.1 The clamping mechanism includes an upper jaw 3-2 and a lower jaw 3-3 that cooperate to clamp materials, a controller, and an anti-collision mechanism for detecting whether the lower jaw 3-3 is impacted. After one conveying cycle, the upper jaw 3-2 and the lower jaw 3-3 need to return to their original positions. Therefore, an origin sensor 3-201 is installed on the upper jaw 3-2. The origin sensor 3-201 causes the upper jaw 3-2 to stop at a fixed position.

[0099] The third drive device 3-4 includes a ball screw 3-401 with an anti-collision screw nut 3-403. One end of the ball screw 3-401 is connected to a servo motor 3-402, and the other end passes through the upper gripper and is mounted on the housing. The lower gripper 3-3 is connected to the anti-collision screw nut 3-403.

[0100] The fourth drive device 3-5 includes a DC motor 3-502 and a trapezoidal lead screw 3-501 connected to the DC motor 3-502. The DC motor 3-502 is fixedly mounted on the lower gripper 3-3. A backlash-free lead screw nut 3-503 is fitted onto the trapezoidal lead screw 3-501, and the backlash-free lead screw nut 3-503 is connected to the upper gripper 3-2. The third drive device 3-4 drives the lower gripper to move, and the lower gripper is connected to the upper gripper via 3-5 and the trapezoidal lead screw 3-501, thereby enabling the third drive device 3-4 to simultaneously drive the upper gripper 3-2 and the lower gripper 3-3 to perform lifting and lowering movements. A DC motor 502 drives a trapezoidal screw 3-501 to rotate, which in turn drives the upper gripper 3-2 to move. The lower gripper 3-3 has reached the set position via the third drive device 3-4. Then, the trapezoidal screw of the second drive mechanism 501 enables the upper gripper 3-2 to descend rapidly, thus achieving the clamping and releasing function of the material box.

[0101] The controller is a PCB board, electrically connected to the servo motor 3-402 of the third drive device 3-4, the DC motor 3-502 of the fourth drive device 3-5, the clamping sensor 3-202, and the origin sensor 3-201. The PCB board is electrically connected to the DC motor 3-502, thereby controlling the motor's rotational speed and torque. When gripping the material box, the upper gripper 3-2 descends rapidly until it is about to clamp the material box. At this point, the clamping sensor 3-202 on the upper gripper 3-2 generates a signal, which is sent to the PCB board. At this time, the PCB board changes the current supplied to the DC motor 3-502 through its internal program, reducing the descent speed of the upper gripper 3-2 until the material box is clamped. During clamping, the motor continuously generates torque to ensure that the material box remains in a clamped state.

[0102] When the lower gripper 3-3 is impacted, it becomes stuck and cannot move further. To prevent damage to the fourth drive device 3-5, a crash barrier 306 is installed on the lower gripper 3-3. The crash barrier screw nut is fitted inside the annular crash barrier 3-306. Tension spring guide grooves are provided on both sides of the crash barrier 3-306. The tension spring guide grooves include a first guide groove 3-301 and a second guide groove 3-304. Both the first guide groove 3-301 and the second guide groove 304 are cylindrical. The first guide groove 3-301 has a circular cross-section, and the second guide groove 304 has an oblong cross-section. Tension springs 3-302 are installed in the tension spring guide grooves, and multiple tension springs 3-302 surround the screw nut and are connected end to end to fix the lower gripper 3 and the screw nut relatively. The tension springs 3-302 form a movable connection between the lower gripper 3-3 and the screw nut. The sensor is a slotted photoelectric sensor used to detect the relative distance between the lower jaw 3-3 and the lead screw nut. The sensing element 3-303 of the slotted photoelectric sensor is installed on the lead screw nut, and the sensing slot 3-305 of the slotted photoelectric sensor is installed on the lower jaw 3-3, with the sensing element 3-303 and the sensing slot 3-305 corresponding in position. The sensor is then electrically connected to the alarm. When the lower jaw 3-3 is impacted, it cannot move further, but the servo motor 3-402 still drives the lead screw to rotate, causing the lead screw nut to continue moving downwards. At this time, the tension spring 3-302 in the tension spring guide slot is disconnected due to the compression of the lead screw nut, and simultaneously, the tension spring 3-302 in the second guide slot 3-304 undergoes lateral displacement, causing a relative change in the position between the lower jaw 3-3 and the lead screw nut. Therefore, the sensor generates a sensing signal and transmits it to the alarm. The alarm sounds, indicating that the lower jaw 3-3 is stuck, and the equipment stops for inspection and reset.

[0103] To prevent interference from the external environment, a dustproof housing is installed on the device. A linear guide rail is mounted on the dustproof housing, and two sliders are mounted on the linear guide rail. The first drive device 102, the controller, and the second drive device 3-101 are installed inside the dustproof housing. The upper gripper 3-2 and the lower gripper 3-3 are fixedly connected to the two sliders, respectively. The first drive device 102 can drive the upper and lower grippers 3-3 to move vertically on the linear guide rail; the second drive device 3-101 can drive the upper and lower grippers 3-3 to move vertically on the linear guide rail.

[0104] The working process of this device is as follows: the third drive device 3-4 drives the upper and lower grippers to rise and fall simultaneously to the position of gripping the material box. Then, the fourth drive device 3-5 moves the upper gripper 3-2 downward until the upper and lower grippers 3-3 clamp the material box. The clamping force is adjusted by the controller. An anti-collision mechanism prevents the lower gripper 3-3 from getting stuck and damaging the third drive device 3-4. After gripping and unloading are completed, the third drive device 3-4 drives the upper and lower grippers to return to their original positions via the origin sensor.

[0105] 4.2 The transplanting mechanism 3-1 includes a driving device and a first anti-collision mechanism 3-102. The driving end of the driving device is connected to the outer shell. The entire driving clamping mechanism moves in the horizontal direction. The first anti-collision mechanism 3-102 is used to detect whether it is impacted in the horizontal direction.

[0106] 4. The material box unloading module 8 includes: a longitudinal pushing mechanism, a transverse moving mechanism, a blocking mechanism, and a clamping mechanism;

[0107] The longitudinal pushing mechanism includes: a pushing cylinder 804, a pushing block 802, a pushing linear guide rail 801 and a discharging linear guide rail 803 with the driving direction in the longitudinal direction, and a clamping block 808.

[0108] The blocking mechanism includes a blocking cylinder 805 and a blocking block. The driving end of the blocking cylinder 805 is connected to the blocking block and drives the blocking block to move up and down.

[0109] The lateral movement mechanism includes a fixed base plate 809 and a transplanting cylinder 807 mounted on the fixed base plate 809 and driven in the lateral direction; the driving end of the transplanting cylinder 807 is connected to a connecting plate 810.

[0110] A linear guide rail 801 and a pusher cylinder 804 are mounted on a connecting plate 810. The pusher cylinder 804 is positioned next to the linear guide rail 801. A pusher block 802 is connected to the drive end of the pusher cylinder 804. The pusher cylinder 804 pushes the pusher block 802 to move along the linear guide rail 801. A discharge linear guide rail 803 is also mounted on the connecting plate 810. A clamping block 808 is used to carry the material box. The clamping block 808 is mounted on the discharge linear guide rail 803. A blocking cylinder 805 is located at one end of the discharge linear guide rail 803. At the position where the clamping block 808 is longitudinally restricted to move, a clamping mechanism is mounted on the connecting plate to clamp the empty material box.

[0111] The working process of the empty box unloading module 8 is as follows: the empty box is placed on the clamping block 808, the blocking cylinder 805 rises, the clamping mechanism clamps the box, the transfer cylinder 807 moves the empty box to the unloading position, the clamping mechanism releases the empty box, the blocking cylinder 805 descends, and the pushing cylinder 804 pushes the empty box to the unloading position through the pushing block 802, thus completing the unloading of the empty box.

[0112] An automatic calibration method for jig fitting, using the aforementioned jig fitting device with an automatic calibration mechanism, includes the following steps:

[0113] Step S1: The fixture base is sent from the fixture conveying track module 7 to the fixture lifting and positioning platform. At the same time, the material box with the fixture cover is fed to the feeding area through the material box feeding module.

[0114] Step S2: The material box clamping module 3 clamps the material box in the feeding area to the feeding position of the designated fixture cover conveying track module 2. The fixture cover is taken out of the material box by the gripper on the fixture cover conveying track module. The distance that the cover needs to move is determined by the photoelectric sensor, and the fixture cover is gripped to the designated position.

[0115] Step S3: The camera mechanism 1 moves to the top of the fixture and uses the camera to determine whether the camera module has shifted out of the groove of the fixture base; if it is determined that all modules on the fixture base are in the groove, then proceed to the bonding process in step S5; otherwise, proceed to step S4.

[0116] Step S4: When one or more camera modules offset out of the groove, determine the distance the camera module has offset out of the groove:

[0117] If the distance of the groove at the offset point exceeds the threshold of the automatic adjustment range, the machine will alarm and require manual handling. When the user manually puts the module into the groove, the machine can choose to automatically resume operation and then proceed to step S5.

[0118] Otherwise, the correction mechanism 4 of the gantry straightening suction module moves to 0.05-0.1mm directly above the fixture base to correct the position of the camera module, so that the camera module re-enters the groove; then the camera mechanism 1 moves to directly above the fixture to determine whether the camera module has shifted out of the groove of the fixture base. If the camera module still shifts out of the groove, proceed to step S4 again; otherwise, proceed to step S5.

[0119] Step S5: Enter the jig top cover picking process: The top cover suction mechanism moves to directly above the jig top cover, corrects the position of the jig top cover and then picks up the jig top cover, while simultaneously opening the spring clip on the jig top cover;

[0120] Step S6: Enter the process of fitting the fixture base: Transfer the fixture cover to the fixture base located on the lifting and positioning platform, and fit the fixture cover with the fixture base. After the fitting is completed, the fixture positioning and lifting mechanism descends, and then the fitted fixture is transported to the next station through the fixture conveying track module.

[0121] Step S7: Repeat the above steps until all the fixture covers in the material box are properly fitted; unload the empty material box using the material box unloading module.

[0122] As can be seen from the above description, the present invention has the following advantages:

[0123] 1. The device of this invention achieves uninterrupted automatic correction of the bonding equipment through the following design;

[0124] 2. Add a machine camera vision module to perform visual inspection before bonding to determine the specific position of the module on the fixture base;

[0125] 3. A powerful industrial computer, combined with a unique vision inspection algorithm, determines whether the module is in the groove. If it is not in the groove, it can be corrected by an automatic correction module.

[0126] 4. The innovative automatic correction mechanism can process all modules of the fixture at the same time, automatically pushing the misaligned modules into the base groove;

[0127] It is understood that the above detailed description of the present invention is for illustrative purposes only and is not intended to limit the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention to achieve the same technical effects; as long as the usage requirements are met, they are all within the protection scope of the present invention.

Claims

1. A jig attaching apparatus with automatic correction device, characterized by, The jig conveying track module, the gantry suction correction module, the jig upper cover conveying track module, the material box clamping module, the material box unloading module, and the material box loading module are included. The jig conveying track module is used for conveying the empty jig base to the jig jacking platform and conveying the completed jig base to the unloading position. The jig upper cover conveying track module is used for conveying the jig upper cover in the material box to the designated position. The gantry suction correction module includes a camera mechanism, a correction mechanism, and an upper cover suction mechanism mounted on a first driving device. The material box clamping module clamps the material box loaded with the jig upper cover from the material box loading module and transfers it to the loading area of the jig upper cover conveying track module. The correction mechanism includes a correction fixed frame, a stepper motor, a origin sensor, a floating plate, an eccentric wheel, and a correction plate.

2. The jig bonding equipment with an automatic correction device according to claim 1, wherein the upper cover suction mechanism includes a suction fixed frame, a pressure switch, a first suction plate, a second suction plate, a ejector pin mechanism, a vacuum suction mechanism, and a guide positioning mechanism.

3. The jig bonding equipment with an automatic correction device according to claim 1, wherein the material box clamping module includes a transplanting mechanism and a clamping mechanism. ​ ​ The transplanting mechanism comprises a second driving device and a first anti-collision mechanism; The clamping mechanism comprises a housing, upper and lower clamping jaws for clamping materials, and a second anti-collision mechanism for detecting whether the lower clamping jaw is impacted; a clamping sensor is mounted on the upper clamping jaw; a third driving device is connected with the upper and lower clamping jaws respectively and simultaneously drives the upper and lower clamping jaws to move up and down; a fourth driving device is connected with the lower clamping jaw and only drives the upper clamping jaw to move towards the lower clamping jaw; the second anti-collision mechanism is connected with the lower clamping jaw and the third driving device respectively; the second anti-collision mechanism, the third driving device and the fourth driving device are arranged in the housing; The driving end of the second driving device is connected with the housing to drive the clamping mechanism as a whole to move in the horizontal direction, and the first anti-collision mechanism is used to detect whether it is impacted in the horizontal direction.

4. The jig bonding equipment with automatic correction device according to claim 3, wherein The third driving device comprises a ball screw with an anti-collision screw nut, one end of the ball screw is connected with a servo motor, and the lower clamping jaw is connected with the anti-collision screw nut of the ball screw.

5. The jig bonding equipment with automatic correction device according to claim 4, wherein The second anti-collision mechanism comprises a sensor, a plurality of tension springs and an alarm; the lower clamping jaw is connected with an anti-collision frame, the anti-collision screw nut is sleeved in the anti-collision frame, the anti-collision frame is provided with tension spring guide grooves on both sides, the tension springs are arranged in the tension spring guide grooves, the plurality of tension springs are arranged around the anti-collision screw nut and connected at the head and tail to fix the lower clamping jaw relative to the anti-collision screw nut, the sensor is fixedly mounted on the lower clamping jaw, the sensor is electrically connected with the alarm, and the sensor detects the relative distance between the lower clamping jaw and the anti-collision screw nut.

6. The jig bonding equipment with automatic correction device according to claim 5, wherein The tension spring guide grooves comprise first and second guide grooves, the first and second guide grooves are cylindrical, the first guide groove has a circular cross section, and the second guide groove has a waist hole-shaped cross section.

7. The jig bonding equipment with automatic correction device according to claim 1, wherein The jig lifting platform comprises a fixed plate, a positioning frame, a vacuum adsorber, a stepping motor, an eccentric mechanism, a material blocking cylinder and a position sensor; the positioning frame is connected with the fixed plate through guide columns, the top surface of the positioning frame is fixedly provided with an adsorption plate, the vacuum adsorber is fixedly mounted on the adsorption plate and used for adsorbing a jig base, the eccentric mechanism is in contact with the positioning frame, the driving end of the stepping motor is connected with the eccentric mechanism to drive the eccentric mechanism to rotate and make the positioning frame move up and down; the material blocking cylinder is arranged beside the positioning frame and used for limiting the position of the jig base; and the position sensor is mounted on the bottom surface of the positioning frame and used for detecting the height of the positioning frame.

8. The jigs lamination equipment with automatic correction device according to claim 1, characterized in that, a longitudinal pushing mechanism, a transverse moving mechanism, a blocking mechanism, a clamping mechanism; the longitudinal pushing mechanism comprises a pushing cylinder, a pushing block, a pushing linear guide rail with a longitudinal driving direction and a blanking linear guide rail, and a clamping block; the blocking mechanism comprises a blocking cylinder and a blocking block, the driving end of the blocking cylinder is connected with the blocking block and drives the blocking block to move up and down; the transverse moving mechanism comprises a fixed base plate and a transplanting cylinder mounted on the fixed base plate and having a transverse driving direction; the driving end of the transplanting cylinder is connected with a connecting plate; the pushing linear guide rail and the pushing cylinder are mounted on the connecting plate, the pushing cylinder is arranged beside the pushing linear guide rail, the driving end of the pushing cylinder is connected with a pushing block, and the pushing cylinder drives the pushing block to move on the pushing linear guide rail; the blanking linear guide rail is mounted on the connecting plate, the clamping block is used for carrying an empty box, the clamping block is mounted on the blanking linear guide rail, the blocking cylinder is arranged at one end of the blanking linear guide rail and limits the movement of the clamping block in the longitudinal direction, and the clamping mechanism is mounted on the connecting plate and used for clamping the empty box.

9. An automatic correction method for jigs lamination, characterized in that, the jigs lamination equipment with automatic correction device according to any one of claims 1 to 8 is applied, and the method comprises the following steps: step S1: a jigs base is sent to a jigs lifting platform from a jigs conveying track module, and an empty box provided with a jigs upper cover is fed to a feeding area through a box feeding module; step S2: the empty box in the feeding area is clamped to a feeding position of a jigs upper cover conveying track module by a box clamping module, the jigs upper cover is taken out of the empty box by a clamping jaw on the jigs upper cover conveying track module, the distance that the cover needs to move is determined by a photoelectric sensor, and the jigs upper cover is grabbed to a specified position; step S3: a camera mechanism moves directly above the jigs, and whether the camera module deviates out of the groove of the jigs base is determined by the camera; if it is determined that all the modules on the jigs base are in the groove, the lamination process of step S5 is entered; otherwise, step S4 is entered; step S4: when one or more camera modules deviate out of the groove, the distance that the camera module deviates out of the groove is determined: if it is determined that the distance that the camera module deviates out of the groove exceeds the automatic adjustment range threshold, the machine is alarmed, manual processing is performed, the machine is automatically recovered when the user manually puts the module into the groove, and then step S5 is entered; otherwise, a correction mechanism of a gantry correction suction module moves to 0.05-0.1 mm above the jigs base, the position of the camera module is corrected, the camera module reenters the groove, the camera mechanism moves directly above the jigs again, whether the camera module deviates out of the groove of the jigs base is determined, and if the camera module still deviates out of the groove, step S4 is entered again; otherwise, step S5 is entered. Step S5: enter the pickup jig cover process: the cover suction mechanism moves to the jig cover directly above, corrects the position of the jig cover and then sucks the jig cover, and at the same time, the spring sheet buckle on the jig cover is opened; Step S6: enter the fitting jig base process: transfer the jig cover to the top of the jig base on the jig lifting platform, fit the jig cover with the jig base, after fitting is completed, the jig positioning lifting mechanism is lowered, and then the fitted jig is transported to the next station through the jig conveying track module; Step S7: repeat the above steps until all the jig covers in the magazine are fitted; the empty magazine is discharged through the magazine discharge module.

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