A battery pack fastener with high sealing performance and an inspection and assembly machine for the fastener

Abstract

The present invention relates to a battery pack fastener with high sealing performance and an inspection and assembly machine for the fastener. An annular groove is provided on the retaining piece of the fastener, and a rubber ring is pressed into the annular groove along the annular groove. A plurality of fixing bumps at the edge of the groove opening of the annular groove press the top of the rubber ring to prevent the rubber ring from falling out of the annular groove due to the pushing of frictional force. The inspection and assembly machine realizes that the assembly components sequentially place, place and inspect, install the rubber ring, inspect the installation effect, discharge the finished products and discharge the defective products of the fasteners on the horizontal turntable, automatically complete the pressing of the rubber ring into the annular groove, save manpower and material resources, improve the assembly efficiency. The extrusion bumps correspond to the fixing bumps. When the pressing ring presses the rubber ring into the annular groove, the pressure received by the rubber ring in contact with the fixing bumps can be increased, preventing the fixing bumps from blocking and causing the rubber ring to be not installed in place, improving the assembly success rate and reducing the production cost.

Description

Technical Field

[0001] The present invention belongs to the technical field of fasteners, and particularly relates to a battery pack fastener with high sealing performance and an inspection and assembly machine for the fastener. Background Art

[0002] In an electric vehicle battery pack, in order to maintain the internal heat balance of the battery pack, heat dissipation pipelines need to be arranged inside the battery pack, and columnar structural members are used to support the cover plates on both sides of the battery pack to maintain the heat dissipation space. Then, fasteners are used to fix the structural members to prevent the battery pack from deforming. The fastener is usually composed of a head and a screw rod. To prevent dust or foreign liquid from entering the battery pack through the screwing part of the fastener, a rubber gasket is arranged between the head of the fastener and the support column to improve the sealing effect of the fastener. At the same time, to prevent the gasket for sealing from shifting and generating gaps during installation, selecting an integrally fixed gasket and the head can effectively avoid this situation. There are two existing methods for fixing the gasket. One is to use adhesive to fix the gasket, but it is easy to separate and fall off from the head of the fastener due to friction during the screwing process, and the fixing effect of the gasket is not good. The other is to set an annular groove along the edge of the screw rod on the head, and a clamping groove is arranged on the side wall of the annular groove. A fixing protrusion is arranged on the gasket. When the gasket is pressed into the annular groove, the protrusion is clamped into the clamping groove. When screwing, the protrusion abuts against the inner wall of the clamping groove to prevent the gasket from rotating and avoid the gasket from falling off. However, when assembling the gasket, the protrusion needs to be inserted into the clamping groove accurately. During machine assembly, it is easy for the protrusion and the clamping groove to be misaligned, and when the gasket is pressed into the annular groove, the protrusion is damaged, resulting in the annular groove being unable to fix the gasket. When the fastener is screwed with the support column, the gasket falls off and loses the sealing effect. Due to the small volume of the fastener and the gasket, the existing assembly equipment cannot guarantee the accuracy of the position and the force during the feeding of the fastener and the installation of the gasket. As a result, the fastener is not placed in place during feeding, or the fastener collides with the components on the equipment and generates a position shift, or the force is uneven when the gasket is pressed into the annular groove, resulting in the gasket not being installed in place on the fastener, causing partial or overall separation between the two, and the fastener being in a toppled state, which will also conflict with the position of the components of the equipment, resulting in damage to the fastener and the equipment and an increase in production costs. After the gasket is installed, an optical detection mechanism is usually arranged on one side of the equipment to detect the fastener from the side to judge whether the raised gasket image can be detected above the annular groove, so as to determine whether the gasket is installed in place. However, this detection process cannot obtain which part of the gasket is not installed in place. During manual processing, the gasket also needs to be pressed in as a whole, which is time-consuming and laborious. Therefore, designing a battery pack fastener with high sealing performance that can improve the fixing effect of the sealing ring and prevent the sealing ring from being damaged and an inspection and assembly machine for the fastener has become an urgent technical problem to be solved. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a battery pack fastener with high sealing performance and an inspection and assembly machine for the fastener.

[0004] The technical solution of the present invention is a battery pack fastener with high sealing performance, including a head and a screw part, both made of metal. A sealing washer is connected between the head and the screw part. The sealing washer is perpendicular to the screw part. An annular groove is provided on the sealing washer along the circumferential direction of the screw part. A rubber ring is correspondingly clamped in the annular groove. A number of fixing bumps are arranged at equal intervals on the edge of the groove opening of the annular groove. The top of the rubber ring is closely attached to the number of fixing bumps. An arc-shaped extrusion surface is provided on the side of the fixing bump facing the pressing rubber ring; Chamfering is performed on the edge of the groove opening of the annular groove and the top edge of the fixing bump to form a guiding inclined surface; The fixing bump is integrally formed with the sealing washer by cold heading process.

[0005] After adopting the above method, by pressing the rubber ring into the annular groove, a number of fixing bumps on the edge of the groove opening of the annular groove press the top of the rubber ring. The annular groove is arranged along the circumferential direction of the screw part. During the process of screwing the fastener, the direction of the frictional force received by the rubber ring is the same as the extending direction of the annular groove, preventing the frictional force from pushing the rubber ring out of the annular groove. At the same time, the rubber ring is fixed by the fixing bumps, without the need to modify the rubber ring, maintaining the versatility of the rubber ring; By providing an arc-shaped extrusion surface on the side of the fixing bump facing the pressing rubber ring, and chamfering is performed on the edge of the groove opening of the annular groove and the top edge of the fixing bump to form a guiding inclined surface, the guiding inclined surface is convenient for guiding the rubber ring to be aligned and enter the annular groove, avoiding damage caused by misalignment when pressing the rubber ring into the annular groove; By the arc-shaped extrusion surface on the fixing bump contacting the rubber ring, when the rubber ring rotates in the annular groove under the action of frictional force, it is avoided that the fixing bump scratches the rubber ring; By the cold heading process, the fixing bump is integrally formed with the sealing washer, improving the surface finish and machining accuracy of the fixing bump, with low loss to the sealing washer, which helps to improve the production efficiency of the fastener.

[0006] Another technical solution of the present invention is a detection and assembly machine for battery pack fasteners, which includes a processing chamber and a controller. A horizontal turntable and an assembly component are provided in the processing chamber. A number of placement grooves are arranged at equal intervals along the circumferential direction on the top surface of the horizontal turntable. A turntable shaft is provided along the axis of the horizontal turntable. The placement grooves are adapted to the heads of the battery pack fasteners. A turntable motor is connected to the lower end of the turntable shaft for cooperative drive, and the turntable motor is fixedly arranged at the bottom of the processing chamber; The assembly component includes a number of pneumatic bolt clamps, electromagnetic sensors, washer clamps and optical detection mechanisms. The number of pneumatic bolt clamps, electromagnetic sensors and washer clamps are all connected with moving cylinders. The moving cylinders are connected with translation tracks, and the translation tracks are connected with lifting mechanisms, and the lifting mechanisms are connected with the inner wall of the processing chamber; The number of pneumatic bolt clamps includes a feeding clamp, a finished product discharging clamp and a defective product discharging clamp; The electromagnetic sensor is provided with an induction chamber; The washer clamp includes a suction column and a pressing ring. The suction column is perpendicular to the horizontal turntable. A suction chamber is provided at the bottom of the side surface of the suction column. A separation net is covered at the orifice of the suction chamber. The suction chamber is connected with an air delivery pipe, and the air delivery pipe is connected with a negative pressure fan. The pressing ring is movably sleeved outside the suction column. The bottom surface of the pressing ring is provided with extrusion bumps corresponding to the fixed bumps. The processing chamber is also connected with a downward pressing cylinder, and the downward pressing cylinder is correspondingly arranged above the pressing ring for cooperative linkage; The feeding clamp, electromagnetic sensor, washer clamp, optical detection mechanism, finished product discharging clamp and defective product discharging clamp are sequentially arranged above a number of placement grooves; The installation machine is also provided with a number of conveyor belts, and the positions of the number of conveyor belts are respectively adapted to the positions of the pneumatic bolt clamps and the washer clamps; The controller is provided with a switch button and an operation button, and the controller is electrically connected to the turntable motor, moving cylinder, lifting mechanism, pneumatic bolt clamp, electromagnetic sensor, moving cylinder, negative pressure fan, downward pressing cylinder and conveyor belt.

[0007] After adopting the above method, various components are electrically connected through the controller, so that the switch buttons and operation buttons on the controller can be used to control the operation of other components; the horizontal turntable is driven to rotate by intermittently starting the turntable motor, so that the placement slots on the horizontal turntable are aligned with different assembly components above in turn. During the rest period of the turntable motor, the moving cylinder is started to move horizontally along the translation track, and the lifting mechanism is combined to move vertically, so that the pneumatic bolt clamp, electromagnetic sensor and gasket clamp can move freely on the vertical plane, which is convenient for the assembly components to perform various assembly operations; the battery pack fasteners are clamped from the conveyor belt at the corresponding position through the movement of the loading clamp and placed on the horizontal turntable, so that the heads of the fasteners are placed in the placement slots accordingly to prevent the fasteners from being relatively The horizontal turntable slides; the electromagnetic sensor is driven down by the lifting mechanism, so that the fastener above the placement slot enters the sensing cavity, the electromagnetic sensor is started to detect whether there is a fastener on the placement slot through electromagnetic induction, and feedback is given to the controller when the fastener is not detected; the bottom of the suction column is inserted into the rubber ring on the conveyor belt by moving the gasket clamp, the suction cavity at the bottom of the side is aligned with and fits the inner circumference of the rubber ring, the negative pressure fan is controlled to start, and the air in the suction cavity is discharged through the air supply pipe to form a negative pressure, the rubber ring is adsorbed on the isolation net, and the gasket clamp is moved again to align the rubber ring with the annular groove of the fastener, the negative pressure fan stops working to make the rubber ring naturally fall onto the annular groove, and the lower air cylinder is controlled to start, and the lower pressure cylinder pushes the pressure ring downward to squeeze the rubber The rubber ring is pressed into the annular groove, and extrusion convex points corresponding to the fixed convex points are arranged on the bottom surface of the pressure ring to increase the downward pressure on the corresponding position of the rubber ring, so as to avoid the rubber ring being not completely pressed into the annular groove due to the obstruction of the fixed convex points; the image of the fastener is detected from the side by an optical detection mechanism, and compared with the image of the standard fastener, to determine whether there is a part of the rubber ring that is not pressed into the annular groove, and the detection result is sent to the controller for processing; the controller controls the finished product unloading clamp to clamp the qualified fasteners and put them on the corresponding conveyor belt according to the detection result of the optical detection mechanism during the rotation of the horizontal turntable, and uses the defective unloading clamp to put the unqualified fasteners on the remaining conveyor belts, and the unqualified fasteners are separated from the qualified products for recycling, which is convenient for personnel The unqualified fasteners are processed twice; by controlling the conveyor belt to use the same intermittent time as the turntable motor when running, it is convenient to load and unload the fasteners and rubber rings in time during the rotation of the horizontal turntable to avoid gaps in the assembly process; the assembly components are placed on the horizontal turntable in turn, the placement is tested, the rubber rings are installed, the installation effect is tested, the finished products are unloaded, and the defective products are unloaded, and the rubber rings are automatically pressed into the annular groove, which saves manpower and material resources and improves assembly efficiency. The extrusion convex point corresponds to the fixed convex point. When the pressure ring presses the rubber ring into the annular groove, the pressure on the rubber ring at the contact with the fixed convex point can be increased to prevent the fixed convex point from blocking the rubber ring from being installed in place, thereby improving the assembly success rate and reducing production costs.

[0008] As a further improvement of the present invention, a support plate is provided at the top of the suction column. One side of the support plate is connected to a moving cylinder. The support plate is provided with a pair of guiding through holes, both of the pair of guiding through holes are parallel to the suction column. A transmission rod is inserted into the guiding through holes. The bottom end of the transmission rod is connected to the outer side of a pressing ring. A lower pressing plate is connected between the top ends of the transmission rods. A return spring is connected between the lower pressing plate and the support plate. The return spring is sleeved on the outer side of the transmission rod. The position of the lower pressing cylinder corresponds to that of the lower pressing plate.

[0009] After adopting the above method, by operating the controller to press down and reset the lower pressing cylinder, during the downward process, the lower pressing plate is squeezed downward. The lower pressing plate pushes the transmission rod to move downward along the guiding through hole. The transmission rod drives the pressing ring to move and press the rubber ring into the annular groove. The cooperation between the transmission rod and the lower pressing plate extends the force application distance of the lower pressing cylinder, preventing the lower pressing cylinder from being blocked by the suction column and unable to effectively press down the pressing ring. By connecting a return spring between the lower pressing plate and the support plate, when the lower pressing plate moves downward, it cooperates with the support plate to squeeze the return spring to contract. While the lower pressing cylinder resets, the return spring can exert force to push the lower pressing plate back to its original position automatically. By sleeving the return spring on the outer side of the transmission rod, the transmission rod supports the return spring inside to prevent the return spring from being bent and damaged to the side.

[0010] As a further improvement of the present invention, the horizontal turntable is further provided with a movable hole, a guiding sleeve and a placing seat corresponding to the position of the placing groove. The movable hole penetrates the horizontal turntable in the vertical direction. A limiting block is provided along the circumference at the bottom of the movable hole. The placing seat is inserted into the movable hole. A guiding column is further provided on the side surface of the placing seat. The guiding sleeve is sleeved on the side surface of the placing seat. A pair of driving blocks are provided on the bottom surface of the guiding sleeve. The pair of driving blocks extend out from the lower end of the movable hole. A strip-shaped through hole is further provided on the side wall of the guiding sleeve. A threaded guiding groove is provided on the inner wall of the limiting block. The position of the guiding groove corresponds to that of the strip-shaped through hole. The pair of guiding columns correspondingly pass through the pair of strip-shaped through holes and are inserted into the bottom of the guiding groove. The horizontal cross-sections of the movable hole, the guiding sleeve and the placing seat are circular structures that fit together. The strip-shaped through hole is parallel to the axis of the movable hole. An annular support plate is provided at the top of the guiding sleeve. The annular support plate correspondingly presses on the limiting block. The placing groove is correspondingly arranged on the top surface of the placing seat. A driving motor is fixedly provided on the bottom surface of the processing cavity. A driving rotating shaft is connected to the top of the driving motor for cooperative linkage. The position of the driving rotating shaft corresponds to the axis of the movable hole. A driving plate is connected to the top end of the driving rotating shaft. A pair of arc-shaped grooves are provided on the top surface of the driving plate. The positions of the pair of arc-shaped grooves respectively adapt to the pair of driving blocks. The arc-shaped grooves penetrate to the side surface of the driving plate. The controller is electrically connected to the driving motor.

[0011] After adopting the above method, by rotating the horizontal turntable, the fastener with the rubber ring installed is moved to the optical detection mechanism. At the same time, a pair of driving blocks on the bottom surface of the guiding sleeve enter the arc-shaped groove from the side surface of the driving plate. The operation controller starts the driving motor, and through the transmission of the driving rotating shaft, the driving plate and the driving blocks, the guiding sleeve is driven to rotate around the axis of the movable hole. The side wall of the strip-shaped through hole squeezes the guiding column to move along the spiral guiding groove. While the guiding column moves towards the top end of the guiding groove, it also moves upward along the direction of the strip-shaped through hole, driving the placement seat to rotate and lift, facilitating the optical detection mechanism to obtain images of the fastener at different heights and angles, avoiding the detection incompleteness caused by the screw part of the fastener blocking part of the sealing flap, and improving the detection accuracy of the optical detection mechanism for unqualified fasteners; after the detection is completed, the driving motor rotates in reverse to make the guiding sleeve and the placement seat return to their original positions, the horizontal turntable continues to rotate, and the driving block leaves the arc-shaped groove from the other side of the driving plate and turns to the finished product blanking clamp and the defective product blanking clamp.

[0012] As a further improvement of the present invention, a ring-shaped baffle and several support columns are connected to the top surface of the limit block. Several support springs are connected between the top surface of the ring-shaped baffle and the top surface of the limit block. The ring-shaped baffle is in contact with the bottom surface of the ring-shaped support plate. The several support columns are correspondingly inserted into the several support springs. The bottom end of the guiding groove extends vertically upward to form a locking groove, and the end of the guiding column is inserted into the locking groove; a trigger rotating shaft, a reset upright column and a limit column are connected to the bottom surface of the processing cavity. The trigger rotating shaft is arranged on one side of the horizontal turntable and is adapted to the positions of the electromagnetic sensor and the washer clamp. The trigger rotating shaft is connected with a trigger plate and a push rod. The trigger plate extends below the horizontal turntable and is adapted to the position of the bottom surface of the driving block; a trigger hole is provided on the top surface of the reset upright column. A push rod opening penetrating to the side surface of the reset upright column is provided at the bottom of the trigger hole. A transmission column is inserted into the trigger hole. The top end of the transmission column extends out of the trigger hole and is at the same horizontal height as the horizontal turntable. An extrusion spherical surface is provided at the bottom of the transmission column. The opening direction of the push rod opening faces the horizontal turntable. The position of the push rod is adapted to the push rod opening. The push rod is chamfered towards the edge of the extrusion spherical surface to form an extrusion inclined surface. The top surface of the limit column is in contact with the bottom surface of the trigger plate; a pressing block is also connected to the top end of the transmission column. A reset pressing plate that can move vertically is provided on one side of the pressing ring. The reset pressing plate corresponds to the position of the pressing block; a starting groove adapted to the position of the trigger plate is provided on the side surface of the limit column. The downward pressing cylinder is electrically connected with a starting switch. The starting switch is electrically connected with the controller. Both ends of the starting switch are provided with short contact points. The short contact points are all arranged in the starting groove. The trigger plate is also provided with a short-circuit line. Electrode contacts corresponding to the positions of the short contact points are provided at both ends of the short-circuit circuit.

[0013] After adopting the above method, the head of the fastener is placed in the placement groove, so that the weight of the fastener can completely press on the placement seat. The guiding column on the side of the placement seat presses down the lower end of the strip-shaped through hole, driving the annular support plate at the top of the guiding sleeve to press down the annular baffle. The support spring below the annular baffle contracts, and the support column inserted in the support spring contacts the bottom surface of the annular baffle for support. At the same time, the end of the guiding column moves downward and leaves the locking groove, preventing the placement seat from being stressed and moving along the guiding groove when the fastener is not placed, avoiding the driving block from rotating and misaligning and unable to enter the arc-shaped groove; by triggering the trigger plate on the trigger shaft to extend below the horizontal turntable and adapt to the position of the bottom surface of the driving block, the guiding sleeve is pressed down by the placement seat so that the driving block drops to a height corresponding to the side surface of the trigger plate. When the horizontal turntable rotates and the fastener rotates to below the washer clamp, the driving block moves and pushes the trigger plate from the side. The trigger plate rotates out of the starting groove on the limit post, driving the trigger shaft to rotate; the trigger shaft then drives the push rod to rotate. At the same time, the electrode contact on the short-circuit circuit is separated from the short contact point, and the starting electrical signal sent by the controller can smoothly turn on the pressing cylinder through the starting switch. The push rod rotates through the push rod hole on the reset column and enters the bottom of the trigger hole, pressing the inclined surface to contact the pressing spherical surface and pushing the transmission column to move upward along the trigger hole. The upward movement of the transmission column drives the pressing block to rise; while the pressing ring presses the rubber ring into the annular groove, the reset pressing plate on one side pushes the pressing block downward. The pressing block drives the transmission column to make the pressing spherical surface push the pressing inclined surface, causing the push rod to rotate reversely and leave the trigger hole. The push rod drives the trigger shaft to reverse back to its original position, and the trigger plate is again clamped into the starting groove on the limit post for fixation, preventing the trigger shaft from continuing to rotate and keeping the trigger plate in a position where it can cooperate with the driving block. The electrode contact contacts the short contact point to form a circuit; when the fastener is picked up by the feeding clamp and placed on the horizontal turntable, if it is not aligned and placed in the placement groove, or the electromagnetic sensor collides with the fastener during the lifting process and separates from the placement groove, the gravity received by the placement seat decreases, resulting in the driving block at the bottom surface of the guiding sleeve being unable to descend and push the trigger plate. The starting switch is connected through a short-circuit line to block the electrical signal flowing to the pressing cylinder, so that the pressing cylinder cannot be started, preventing the fastener from being misaligned and causing the pressing ring to squeeze other parts of the fastener and cause damage.

[0014] As a further improvement of the present invention, a spherical surface is provided at the end of the guiding column, and the spherical surface fits with the inner wall of the guiding groove; a plurality of ball grooves are provided at intervals on the bottom surface of the annular support plate, a ball shaft is connected in each of the ball grooves, the ball shaft corresponds to the radial direction of the annular support plate, a ball is connected to the ball shaft, and the bottom of the ball extends out of the ball groove and contacts the annular baffle.

[0015] After adopting the above method, by providing a spherical surface at the end of the guiding post, the spherical surface fits against the inner wall of the guiding groove, reducing the contact area between the two, decreasing the frictional force on the guiding post, and making it easier to push the guiding post to move along the guiding groove; by providing a plurality of ball grooves at intervals on the bottom surface of the annular support plate, a ball shaft is connected in each ball groove, the ball shaft corresponds to the radial direction of the annular support plate, a ball is connected to the ball shaft, and the bottom of the ball extends out of the ball groove to contact the annular baffle. When the driving motor drives the guiding sleeve to rotate, the annular support plate rotates relative to the limiting block, and the balls contact the limiting block to convert sliding friction into rolling friction, reducing the wear between the annular support plate and the limiting block and increasing their service life.

[0016] As a further improvement of the present invention, each of the plurality of pneumatic bolt clamps is provided with a pair of movable clamping plates and an opening and closing air cylinder for connecting and cooperating the clamping plates. The surface of the clamping plate is covered with anti-slip lines, and each clamping plate is a curved surface plate. The size and shape of the curved surface plate are adapted to the screw part; the opening and closing air cylinder is electrically connected to the controller.

[0017] After adopting the above method, by providing a pair of movable clamping plates and an opening and closing air cylinder for connecting and cooperating the clamping plates in each of the plurality of pneumatic bolt clamps, each clamping plate is a curved surface plate with a size and shape adapted to the screw part. Operating the controller to start the opening and closing air cylinder drives the clamping plate to move and squeeze the screw part to generate pressure, and the fastener is driven by friction to move and be placed with the pneumatic bolt clamp on the conveyor belt and horizontally; by covering the surface of the clamping plate with anti-slip lines, the friction force between the clamping plate and the screw part is increased to prevent the fastener from falling off during the moving and placing process.

[0018] As a further improvement of the present invention, the optical detection mechanism includes a first camera and a second camera, and the vertical height and horizontal position of the first camera are both misaligned with those of the second camera.

[0019] After adopting the above method, since the optical detection mechanism includes a first camera and a second camera, and the vertical height and horizontal position of the first camera are both misaligned with those of the second camera, the optical detection mechanism can take pictures from different heights and angles simultaneously, making the captured pictures more comprehensive and facilitating accurate identification of the parts of the rubber ring that are not installed in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure diagram of the present invention is shown.

[0021] Figure 2 The structure diagram of the washer clamp is shown.

[0022] Figure 3 The structure diagram of the battery pack fastener is shown.

[0023] Figure 4The figure shows a schematic diagram of the placement seat structure.

[0024] Figure 5 The figure shows a schematic diagram of the cross-sectional structure of the movable hole.

[0025] Figure 6 The figure shows a schematic diagram of the driving plate structure.

[0026] Figure 7 The figure shows a schematic diagram of the trigger rotating shaft structure.

[0027] Figure 8 The figure shows a schematic diagram of the ball groove structure of part A.

[0028] a1 - head, a2 - screw part, a3 - sealing washer, a4 - annular groove, a5 - rubber ring, a6 - fixing bump, b1 - horizontal turntable, b2 - placement groove, b3 - pneumatic bolt clamp, b4 - electromagnetic sensor, b5 - washer clamp, b6 - optical detection mechanism, b7 - moving cylinder, b8 - translation track, b9 - lifting mechanism, b10 - suction column, b11 - pressing ring, b12 - isolation net, b13 - downward pressing cylinder, b14 - support plate, b15 - guiding through hole, b16 - transmission rod, b17 - lower pressing plate, b18 - return spring, b19 - movable hole, b20 - guiding sleeve, b21 - placement seat, b22 - limiting block, b23 - guiding column, b24 - driving block, b25 - strip-shaped through hole, b26 - guiding groove, b27 - annular support plate, b28 - driving motor, b29 - driving plate, b30 - arc groove, b31 - annular baffle, b32 - support column, b33 - support spring, b34 - locking groove, b35 - trigger rotating shaft, b36 - return upright post, b37 - limiting post, b38 - trigger plate, b39 - push rod, b40 - trigger hole, b41 - push rod opening, b42 - transmission column, b43 - extrusion inclined plane, b44 - starting groove, b45 - ball groove, b46 - ball shaft, b47 - ball. Detailed implementation manners

[0029] As Figures 1-8Disclosed is a highly-sealed battery pack fastener and an inspection and assembly machine for the fastener. The battery pack fastener includes a head a1 and a screw part a2, both made of metal. A sealing washer a3 is connected between the head a1 and the screw part a2. The sealing washer a3 is perpendicular to the screw part a2. An annular groove a4 is provided along the circumferential direction of the screw part a2 on the sealing washer a3. A rubber ring a5 is correspondingly clamped in the annular groove a4. A plurality of fixing bumps a6 are arranged at equal intervals on the edge of the opening of the annular groove a4. The plurality of fixing bumps a6 are all in close contact with the top of the rubber ring a5. An arc-shaped extrusion surface is provided on the side of the fixing bump a6 facing the pressed rubber ring a5. Chamfering is performed on the edge of the opening of the annular groove a4 and the top edge of the fixing bump a6 to form a guiding inclined surface. The fixing bump a6 is integrally formed with the sealing washer a3 by cold heading process.

[0030] By pressing the rubber ring a5 into the annular groove a4, a plurality of fixing bumps a6 on the edge of the opening of the annular groove a4 press the top of the rubber ring a5. The annular groove a4 is arranged along the circumferential direction of the screw part a2. During the process of screwing the fastener, the direction of the frictional force on the rubber ring a5 is the same as the extending direction of the annular groove a4, preventing the frictional force from pushing the rubber ring a5 out of the annular groove a4. At the same time, the rubber ring a5 is fixed by the fixing bumps a6, without the need to modify the rubber ring a5, maintaining the versatility of the rubber ring a5. By providing an arc-shaped extrusion surface on the side of the fixing bump a6 facing the pressed rubber ring a5, and chamfering is performed on the edge of the opening of the annular groove a4 and the top edge of the fixing bump a6 to form a guiding inclined surface, the guiding inclined surface facilitates guiding the rubber ring a5 to be aligned and enter the annular groove a4, avoiding damage caused by misalignment when pressing the rubber ring a5 into the annular groove a4. By the arc-shaped extrusion surface on the fixing bump a6 coming into contact with the rubber ring a5, when the rubber ring a5 rotates in the annular groove a4 under the frictional force, it avoids the fixing bump a6 scratching the rubber ring a5. By the cold heading process, the fixing bump a6 is integrally formed with the sealing washer a3, improving the surface finish and machining accuracy of the fixing bump a6, with low loss to the sealing washer a3, contributing to improving the production efficiency of the fastener.

[0031] The detection and assembly machine includes a processing chamber and a controller. Inside the processing chamber, there is a horizontal turntable b1 and an assembly component. Along the circumferential direction of the top surface of the horizontal turntable b1, several placement grooves b2 are arranged at equal intervals. Along the axis of the horizontal turntable b1, there is a turntable shaft. The placement groove b2 is adapted to the head a1 of the battery pack fastener. The lower end of the turntable shaft is connected with a turntable motor for cooperative drive, and the turntable motor is fixedly arranged at the bottom of the processing chamber; The assembly component includes several pneumatic bolt clamps b3, an electromagnetic sensor b4, a washer clamp b5 and an optical detection mechanism b6. The several pneumatic bolt clamps b3, the electromagnetic sensor b4 and the washer clamp b5 are all connected with a moving cylinder b7. The moving cylinder b7 is connected with a translation track b8, and the translation track b8 is connected with a lifting mechanism b9, and the lifting mechanism b9 is connected with the inner wall of the processing chamber; The several pneumatic bolt clamps b3 include a feeding clamp, a finished product discharging clamp and a defective product discharging clamp; The electromagnetic sensor b4 is provided with an induction chamber; The washer clamp b5 includes a suction column b10 and a pressing ring b11. The suction column b10 is perpendicular to the horizontal turntable b1. At the bottom of the side surface of the suction column b10, there is a suction chamber. The orifice of the suction chamber is covered with an isolation net b12. The suction chamber is connected with an air delivery pipe, and the air delivery pipe is connected with a negative pressure fan. The pressing ring b11 is movably sleeved outside the suction column b10. The bottom surface of the pressing ring b11 is provided with a pressing convex point corresponding to the fixed convex point a6. The processing chamber is also connected with a downward pressing cylinder b13, and the downward pressing cylinder b13 is correspondingly arranged above the pressing ring b11 for cooperative linkage; The feeding clamp, the electromagnetic sensor b4, the washer clamp b5, the optical detection mechanism b6, the finished product discharging clamp and the defective product discharging clamp are sequentially arranged above the several placement grooves b2; The detection and assembly machine is also provided with several conveyor belts, and the positions of the several conveyor belts are respectively adapted to the positions of the pneumatic bolt clamps b3 and the washer clamps b5; The controller is provided with a switch button and an operation button, and the controller is electrically connected to the turntable motor, the moving cylinder b7, the lifting mechanism b9, the pneumatic bolt clamp b3, the electromagnetic sensor b4, the moving cylinder b7, the negative pressure fan, the downward pressing cylinder b13 and the conveyor belt.

[0032] By electrically connecting various components through the controller, it is convenient to use the switch buttons and operation buttons on the controller to control the operation of other components; by intermittently starting the turntable motor to drive the horizontal turntable b1 to rotate, the placement slots b2 on the horizontal turntable b1 are aligned with different assembly components above in turn. During the rest period of the turntable motor, the moving cylinder b7 is started to move horizontally along the translation track b8, and combined with the lifting mechanism b9 to move vertically, the pneumatic bolt clamp b3, the electromagnetic sensor b4 and the washer clamp b5 can be freely moved in the vertical plane, which is convenient for the assembly components to perform various assembly operations; the battery pack fasteners are clamped from the conveyor belt at the corresponding position and placed on the water by the loading clamp. On the horizontal turntable b1, the head a1 of the fastener is placed in the placement groove b2 to prevent the fastener from sliding relative to the horizontal turntable b1; the electromagnetic sensor b4 is driven down by the lifting mechanism b9 to make the fastener above the placement groove b2 enter the sensing cavity, and the electromagnetic sensor b4 is started to detect whether there is a fastener on the placement groove b2 through electromagnetic induction, and feedback is given to the controller when no fastener is detected; the bottom of the suction column b10 is inserted into the rubber ring a5 on the conveyor belt by moving the washer clamp b5, and the suction cavity at the bottom of the side is aligned with and fits the inner circumference of the rubber ring a5, and the negative pressure fan is controlled to start, and the air in the suction cavity is discharged through the air supply pipe to form a negative pressure, so that the rubber ring a5 is adsorbed on The washer clamp b5 is moved on the isolation net b12, and then the gasket clamp b5 is moved to align the rubber ring a5 with the annular groove a4 of the fastener. The negative pressure fan stops working to make the rubber ring a5 naturally fall onto the annular groove a4. By controlling the lower air pressure cylinder to start, the lower pressure cylinder b13 pushes the pressure ring b11 downward to squeeze the rubber ring a5 into the annular groove a4. The bottom surface of the pressure ring b11 is provided with an extrusion convex point corresponding to the fixed convex point a6 to increase the downward pressure on the corresponding position of the rubber ring a5 to avoid the fixed convex point a6 blocking the rubber ring a5 from being completely pressed into the annular groove a4. The image of the fastener is detected from the side by the optical detection mechanism b6, and compared with the image of the standard fastener to determine whether the rubber ring a 5 whether there is a part that is not pressed into the annular groove a4, and send the detection result to the controller for processing; through the controller, according to the detection result of the optical detection mechanism b6, during the rotation of the horizontal turntable b1, the finished product unloading clamp is controlled to clamp the qualified fasteners and put them on the corresponding conveyor belt, and the defective product unloading clamp is used to put the unqualified fasteners on the remaining conveyor belts, and the unqualified fasteners are separated from the qualified products for recycling, so as to facilitate manual secondary processing of the unqualified fasteners; by controlling the conveyor belt to use the same intermittent time as the turntable motor during operation, it is convenient to load and unload the fasteners and rubber rings a5 in time during the rotation of the horizontal turntable b1, so as to avoid gaps during the assembly process;It realizes that the assembly components sequentially place, detect the placement of, install the rubber ring a5, detect the installation effect of, discharge the finished products and discharge the defective products on the fasteners on the horizontal turntable b1, automatically complete pressing the rubber ring a5 into the annular groove a4, saving manpower and material resources, improving the assembly efficiency. The extrusion bump corresponds to the fixing bump a6. When the pressing ring b11 presses the rubber ring a5 into the annular groove a4, it can increase the pressure on the rubber ring a5 at the contact with the fixing bump a6, prevent the fixing bump a6 from blocking and causing the rubber ring a5 to be not installed in place, improve the assembly success rate, and reduce the production cost.

[0033] The top of the suction column b10 is provided with a support plate b14. One side of the support plate b14 is connected to a moving cylinder b7. The support plate b14 is provided with a pair of guiding through holes b15. The pair of guiding through holes b15 are all parallel to the suction column b10. A transmission rod b16 is inserted into the guiding through hole b15. The bottom end of the transmission rod b16 is connected to the outer side surface of the pressing ring b11. A lower pressing plate b17 is connected between the top ends of the transmission rods b16. A return spring b18 is connected between the lower pressing plate b17 and the support plate b14. The return spring b18 is sleeved on the outer side of the transmission rod b16. The position of the lower pressing cylinder b13 corresponds to the lower pressing plate b17.

[0034] By operating the controller to lower and reset the lower pressing cylinder b13, during the lowering process, the lower pressing cylinder b13 squeezes the lower pressing plate b17 downward. The lower pressing plate b17 pushes the transmission rod b16 to move downward along the guiding through hole b15. The transmission rod b16 drives the pressing ring b11 to move and press the rubber ring a5 into the annular groove a4. The cooperation between the transmission rod b16 and the lower pressing plate b17 extends the force application distance of the lower pressing cylinder b13, preventing the lower pressing cylinder b13 from being blocked by the suction column b10 and unable to effectively press the pressing ring b11 downward. By connecting a return spring b18 between the lower pressing plate b17 and the support plate b14, when the lower pressing plate b17 moves downward, it cooperates with the support plate b14 to squeeze the return spring b18 to contract. While the lower pressing cylinder b13 resets, the return spring b18 can exert force to push the lower pressing plate b17 to automatically return to its original position. By sleeving the return spring b18 on the outer side of the transmission rod b16, the transmission rod b16 supports the return spring b18 inside, preventing the return spring b18 from being bent and damaged to the side.

[0035] The horizontal turntable b1 is further provided with a movable hole b19, a guiding sleeve b20 and a placing seat b21 corresponding to the position of the placing groove b2. The movable hole b19 penetrates through the horizontal turntable b1 in the vertical direction, and a limiting block b22 is arranged along the circumference at the bottom of the movable hole b19. The placing seat b21 is inserted into the movable hole b19, and a guiding column b23 is further arranged on the side surface of the placing seat b21. The guiding sleeve b20 is sleeved on the side surface of the placing seat b21, and a pair of driving blocks b24 are arranged on the bottom surface of the guiding sleeve b20. The pair of driving blocks b24 extend out from the lower end of the movable hole b19. A strip-shaped through hole b25 is further arranged on the side wall of the guiding sleeve b20. A threaded guiding groove b26 is arranged on the inner wall of the limiting block. The position of the guiding groove b26 corresponds to that of the strip-shaped through hole b25. The pair of guiding columns b23 correspondingly pass through the pair of strip-shaped through holes b25 and are inserted into the bottom of the guiding groove b26. The horizontal cross-sections of the movable hole b19, the guiding sleeve b20 and the placing seat b21 are circular structures that fit together. The strip-shaped through hole b25 is parallel to the axis of the movable hole b19. An annular support plate b27 is arranged on the top of the guiding sleeve b20, and the annular support plate b27 correspondingly presses on the limiting block b22. The placing groove b2 is correspondingly arranged on the top surface of the placing seat b21. A driving motor b28 is fixedly arranged on the bottom surface of the processing cavity. A driving rotating shaft is connected to the top of the driving motor b28 for cooperative linkage. The position of the driving rotating shaft corresponds to the axis of the movable hole b19. A driving plate b29 is connected to the top end of the driving rotating shaft. A pair of arc-shaped grooves b30 are arranged on the top surface of the driving plate b29. The positions of the pair of arc-shaped grooves b30 respectively correspond to the pair of driving blocks b24. The arc-shaped groove b30 penetrates to the side surface of the driving plate b29. The controller is electrically connected to the driving motor b28.

[0036] By rotating the horizontal turntable b1, the fastener installed with the rubber ring a5 is moved to the optical detection mechanism b6. At the same time, a pair of driving blocks b24 on the bottom surface of the guiding sleeve b20 enter the arc-shaped groove b30 from the side of the driving plate b29. The operation controller starts the driving motor b28, and through the transmission of the driving rotating shaft, the driving plate b29 and the driving block b24, the guiding sleeve b20 is driven to rotate around the axis of the movable hole b19. The side wall of the strip-shaped through hole b25 squeezes the guiding column b23 to move along the thread-shaped guiding groove b26. While the guiding column b23 moves towards the top of the guiding groove b26, it also moves upward along the direction of the strip-shaped through hole b25, driving the placement seat b21 to rotate and lift, facilitating the optical detection mechanism b6 to obtain images of the fastener at different heights and angles, avoiding the detection being incomplete due to the screw part a2 of the fastener blocking part of the sealing flap a3, and improving the detection accuracy of the optical detection mechanism b6 for unqualified fasteners; after the detection is completed, the driving motor b28 rotates in reverse to make the guiding sleeve b20 and the placement seat b21 return to their original positions, the horizontal turntable b1 continues to rotate, and the driving block b24 leaves the arc-shaped groove b30 from the other side of the driving plate b29 and turns to the finished product blanking clamp and the defective product blanking clamp.

[0037] The top surface of the limit block b22 is connected with an annular baffle b31 and a number of support columns b32. Between the top surface of the annular baffle b31 and the top surface of the limit block b22, a number of support springs b33 are connected. The annular baffle b31 is in contact with the bottom surface of the annular support plate b27. The number of support columns b32 are correspondingly inserted into the number of support springs b33. The bottom end of the guiding groove b26 extends vertically upward to form a locking groove b34, and the end of the guiding column b23 is inserted into the locking groove b34. The bottom surface of the processing cavity is connected with a trigger rotating shaft b35, a reset upright column b36 and a limit column b37. The trigger rotating shaft b35 is arranged on one side of the horizontal turntable and is adapted to the positions of the electromagnetic sensor b4 and the washer clamp b5. The trigger rotating shaft b35 is connected with a trigger plate b38 and a push rod b39. The trigger plate b38 extends below the horizontal turntable b1 and is adapted to the position of the bottom surface of the driving block b24. The top surface of the reset upright column b36 is provided with a trigger hole b40. The bottom of the trigger hole b40 is provided with a push rod opening b41 that penetrates to the side surface of the reset upright column b36. A transmission column b42 is inserted into the trigger hole b40. The top end of the transmission column b42 extends out of the trigger hole b40 and is at the same horizontal height as the horizontal turntable b1. The bottom of the transmission column b42 is provided with an extrusion spherical surface. The opening direction of the push rod opening b41 faces the horizontal turntable b1. The position of the push rod b39 is adapted to the push rod opening b41. The push rod b39 is chamfered towards the edge of the extrusion spherical surface to form an extrusion inclined surface b43. The top surface of the limit column b37 is in contact with the bottom surface of the trigger plate b38. The top end of the transmission column b42 is also connected with a pressing block. One side of the pressing ring b11 is provided with a reset pressing plate that can move in the vertical direction, and the reset pressing plate corresponds to the position of the pressing block. The side surface of the limit column b37 is provided with a starting groove b44 that is adapted to the position of the trigger plate b38. The downward pressing cylinder b13 is electrically connected with a starting switch. The starting switch is electrically connected with a controller. Both ends of the starting switch are provided with short contact points, and the short contact points are all arranged in the starting groove b44. The trigger plate b38 is also provided with a short-circuit line, and both ends of the short-circuit circuit are provided with electrode contacts corresponding to the positions of the short contact points.

[0038] The head a1 of the fastener is placed into the placement groove b2, enabling the weight of the fastener to fully press on the placement seat b21. The guiding post b23 on the side of the placement seat b21 presses downward on the lower end of the strip-shaped through-hole b25, driving the annular support plate b27 at the top of the guiding sleeve b20 to press downward on the annular baffle b31. The support spring b33 below the annular baffle b31 contracts, and the support post b32 inserted into the support spring b33 contacts the bottom surface of the annular baffle b31 for support. At the same time, the end of the guiding post b23 moves downward and leaves the locking groove b34, preventing the placement seat b21 from moving along the guiding groove b26 when the fastener is not placed, and avoiding the driving block b24 from rotating out of position and being unable to enter the arc-shaped groove b30. The trigger plate b38 on the trigger shaft b35 extends below the horizontal turntable b1 and is adapted to the position of the bottom surface of the driving block b24. When the guiding sleeve b20 is pressed down by the placement seat b21, the driving block b24 is lowered to a height corresponding to the side surface of the trigger plate b38. When the horizontal turntable b1 rotates and the fastener rotates to below the washer clamp b5, the driving block b24 moves and pushes the trigger plate b38 from the side. The trigger plate b38 rotates out of the starting groove b44 on the limit post b37, driving the trigger shaft b35 to rotate. The trigger shaft b35 then drives the push rod b39 to rotate. At the same time, the electrode contact on the short-circuit circuit separates from the short-contact point, and the starting electrical signal sent by the controller can smoothly turn on the downward pressing cylinder b13 through the starting switch. The push rod b39 rotates through the push rod opening b41 on the reset post b36 and enters the bottom of the trigger hole b40, pressing the inclined surface b43 to contact and push the extrusion spherical surface to drive the transmission post b42 to move upward along the trigger hole b40. The upward movement of the transmission post b42 drives the pressing block to rise. While the pressing ring b11 presses the rubber ring a5 into the annular groove a4, the reset pressing plate on one side pushes the pressing block downward. The pressing block drives the transmission post b42 to make the extrusion spherical surface push the extrusion inclined surface b43, causing the push rod b39 to rotate in the reverse direction and leave the trigger hole b40. The push rod b39 drives the trigger shaft b35 to reverse and return to its original position. The trigger plate b38 is again clamped into the starting groove b44 on the limit post b37 for fixation, preventing the trigger shaft b35 from continuing to rotate and keeping the trigger plate b38 in a position where it can cooperate with the driving block b24. The electrode contact and the short-contact point contact to form a circuit. When the fastener is picked up by the feeding clamp and placed on the horizontal turntable b1, if it is not aligned and placed into the placement groove b2, or the electromagnetic sensor b4 collides with the fastener during the lifting and lowering process and separates from the placement groove b2, the gravity received by the placement seat b21 decreases, resulting in the driving block b24 at the bottom surface of the guiding sleeve b20 being unable to descend to push the trigger plate b38. The starting switch is connected through the short-circuit line, blocking the electrical signal flowing to the downward pressing cylinder b13, preventing the downward pressing cylinder b13 from starting, and preventing damage caused by the fastener being misaligned and the pressing ring b11 squeezing other parts of the fastener.

[0039] The end of the guide post b23 is provided with a spherical surface, which fits against the inner wall of the guide groove b26; a plurality of ball grooves b45 are arranged at intervals on the bottom surface of the annular support plate b27, a ball shaft b46 is connected in each of the ball grooves b45, the ball shaft b46 corresponds to the radial direction of the annular support plate b27, a ball b47 is connected to the ball shaft b46, and the bottom of the ball b47 extends out of the ball groove b45 to contact the annular baffle b31.

[0040] By providing a spherical surface at the end of the guide post b23, the spherical surface fits against the inner wall of the guide groove b26, reducing the contact area between the two and reducing the frictional force on the guide post b23, making it easier to push the guide post b23 to move along the guide groove b26; by arranging a plurality of ball grooves b45 at intervals on the bottom surface of the annular support plate b27, a ball shaft b46 is connected in each of the ball grooves b45, the ball shaft b46 corresponds to the radial direction of the annular support plate b27, a ball b47 is connected to the ball shaft b46, and the bottom of the ball b47 extends out of the ball groove b45 to contact the annular baffle b31. When the driving motor b28 drives the guide sleeve b20 to rotate, the annular support plate b27 rotates relative to the limit block b22, and the ball b47 contacts the limit block b22 to convert sliding friction into rolling friction, reducing the wear of the annular support plate b27 and the limit block b22 and improving their service life.

[0041] Each of the plurality of pneumatic bolt clamps b3 is provided with a pair of movable clamping plates and an opening and closing cylinder for connecting and cooperating with the clamping plates. The surface of the clamping plate is covered with anti-slip lines, and the clamping plates are all curved plates. The size and shape of the curved plates are adapted to the screw part a2; the opening and closing cylinder is electrically connected to the controller.

[0042] By arranging a pair of movable clamping plates and an opening and closing cylinder for connecting and cooperating with the clamping plates on each of the plurality of pneumatic bolt clamps b3, and the clamping plates are all curved plates with sizes and shapes adapted to the screw part a2, operating the controller to start the opening and closing cylinder, driving the clamping plates to move and squeeze the screw part a2 to generate pressure, and relying on the frictional force to drive the fastener to move and be placed with the pneumatic bolt clamp b3 on the conveyor belt and horizontally; by covering the surface of the clamping plate with anti-slip lines, the frictional force between the clamping plate and the screw part a2 is increased to prevent the fastener from falling off during the placement and movement process.

[0043] The optical detection mechanism b6 includes a first camera and a second camera. The height in the vertical direction and the position in the horizontal direction of the first camera are both offset from those of the second camera.

[0044] The optical detection mechanism b6 includes a first camera and a second camera. The vertical height and horizontal position of the first camera are both misaligned with those of the second camera, enabling the optical detection mechanism b6 to take pictures from different heights and angles simultaneously, making the captured images more comprehensive and facilitating the accurate identification of the parts of the rubber ring a5 that are not properly installed.

Claims

1. A detection and assembly machine for a battery pack fastener, comprising a processing chamber and a controller. The battery pack fastener includes a head, a screw portion, and a sealing flap. The sealing flap is provided with an annular groove, and the notch of the annular groove is provided with a fixing bump, and it is characterized in that: The processing cavity is provided with a horizontal turntable and an assembly component. The top surface of the horizontal turntable is provided with a number of placement grooves arranged at equal intervals along the circumferential direction. The horizontal turntable is provided with a turntable shaft along its axis. The placement grooves are adapted to the heads of the battery pack fasteners. The lower end of the turntable shaft is connected with a turntable motor for cooperative drive, and the turntable motor is fixedly arranged at the bottom of the processing cavity; The assembly component includes a number of pneumatic bolt clamps, electromagnetic sensors, washer clamps and optical detection mechanisms. A number of pneumatic bolt clamps, electromagnetic sensors and washer clamps are all connected with moving cylinders. The moving cylinders are connected with translation tracks. The translation tracks are connected with lifting mechanisms. The lifting mechanisms are connected with the inner wall of the processing cavity; The number of pneumatic bolt clamps includes a loading clamp, a finished product unloading clamp and a defective product unloading clamp; The electromagnetic sensor is provided with an induction cavity; The washer clamp includes a suction column and a pressing ring. The suction column is perpendicular to the horizontal turntable. The bottom of the side surface of the suction column is provided with a suction cavity. The orifice of the suction cavity is covered with an isolation net. The suction cavity is connected with an air pipe. The air pipe is connected with a negative pressure fan. The pressing ring is movably sleeved outside the suction column. The bottom surface of the pressing ring is provided with extrusion bumps corresponding to the fixed bumps. The processing cavity is also connected with a downward pressing cylinder, and the downward pressing cylinder is correspondingly arranged above the pressing ring for cooperative linkage; The loading clamp, the electromagnetic sensor, the washer clamp, the optical detection mechanism, the finished product unloading clamp and the defective product unloading clamp are sequentially arranged above a number of placement grooves; The detection and assembly machine is also provided with a number of conveyor belts, and the positions of the number of conveyor belts are respectively adapted to the positions of the pneumatic bolt clamps and the washer clamps; The controller is provided with a switch button and an operation button. The controller is electrically connected to the turntable motor, the moving cylinder, the lifting mechanism, the pneumatic bolt clamp, the electromagnetic sensor, the moving cylinder, the negative pressure fan, the downward pressing cylinder and the conveyor belt; The horizontal turntable is also provided with movable holes, guiding sleeves and placement seats corresponding to the positions of the placement grooves. The movable holes penetrate the horizontal turntable in the vertical direction. The bottom of the movable holes is provided with limiting blocks along the circumference; The placement seat is inserted into the movable hole. The side surface of the placement seat is also provided with guiding columns. The guiding sleeve is sleeved on the side surface of the placement seat. The bottom surface of the guiding sleeve is provided with a pair of driving blocks, and the pair of driving blocks extend out from the lower end of the movable hole; The side wall of the guiding sleeve is also provided with strip-shaped through holes. The inner wall of the limiting block is provided with spiral guiding grooves, and the positions of the guiding grooves are corresponding to the strip-shaped through holes. A pair of guiding columns correspondingly pass through the pair of strip-shaped through holes and are inserted into the bottom of the guiding grooves; The horizontal cross-sections of the movable holes, the guiding sleeves and the placement seats are circular structures that fit together. The strip-shaped through holes are parallel to the axis of the movable holes. The top of the guiding sleeve is provided with an annular support plate, and the annular support plate is correspondingly pressed on the limiting block; The placement grooves are correspondingly arranged on the top surface of the placement seat; The bottom surface of the processing cavity is fixedly provided with a driving motor. The top of the driving motor is connected with a driving rotating shaft for cooperative drive. The driving rotating shaft corresponds to the axis position of the movable hole. The top end of the driving rotating shaft is connected with a driving plate. The top surface of the driving plate is provided with a pair of arc-shaped grooves, and the positions of the pair of arc-shaped grooves are respectively adapted to the pair of driving blocks. The arc-shaped grooves penetrate to the side surface of the driving plate; The controller is electrically connected to the driving motor.

2. The detection and assembly machine for the battery pack fastener according to claim 1, wherein: A support plate is provided at the top end of the suction column. A moving cylinder is connected to one side of the support plate. The support plate is provided with a pair of guiding through holes, both of which are parallel to the suction column. A transmission rod is inserted into the guiding through holes. The bottom end of the transmission rod is connected to the outer side surface of a pressing ring. A lower pressing plate is connected between the top ends of the transmission rods. A reset spring is connected between the lower pressing plate and the support plate, and the reset spring is sleeved outside the transmission rod. The position of the lower pressing cylinder corresponds to that of the lower pressing plate.

3. The detection and assembly machine for the battery pack fastener according to claim 1, wherein: An annular baffle and a plurality of support columns are connected to the top surface of the limiting block. A plurality of support springs are connected between the annular baffle and the top surface of the limiting block. The annular baffle is in contact with the bottom surface of the annular support plate. The plurality of support columns are correspondingly inserted into the plurality of support springs. The bottom end of the guiding groove extends vertically upward to form a locking groove, and the end of the guiding column is inserted into the locking groove; A trigger rotating shaft, a reset upright column and a limiting column are connected to the bottom surface of the processing cavity. The trigger rotating shaft is arranged on one side of the horizontal turntable and is adapted to the positions of the electromagnetic sensor and the washer clamp. The trigger rotating shaft is connected with a trigger plate and a push rod. The trigger plate extends below the horizontal turntable and is adapted to the position of the bottom surface of the driving block; A trigger hole is provided on the top surface of the reset upright column. A push rod hole penetrating to the side surface of the reset upright column is provided at the bottom of the trigger hole. A transmission column is inserted into the trigger hole. The top end of the transmission column extends out of the trigger hole and is at the same horizontal height as the horizontal turntable. An extrusion spherical surface is provided at the bottom of the transmission column. The opening direction of the push rod hole faces the horizontal turntable. The position of the push rod corresponds to that of the push rod hole. The push rod is chamfered towards the edge of the extrusion spherical surface to form an extrusion inclined surface. The top surface of the limiting column is in contact with the bottom surface of the trigger plate; A pressing block is further connected to the top end of the transmission column. A reset pressing plate that can move vertically is provided on one side of the pressing ring, and the position of the reset pressing plate corresponds to that of the pressing block; A starting groove adapted to the position of the trigger plate is provided on the side surface of the limiting column. The lower pressing cylinder is electrically connected with a starting switch, and the starting switch is electrically connected with a controller. Both ends of the starting switch are provided with short contact points, and the short contact points are both arranged in the starting groove. The trigger plate is also provided with a short-circuit line, and electrode contacts corresponding to the positions of the short contact points are provided at both ends of the short-circuit line.

4. The inspection and assembly machine for the battery pack fastener according to claim 3, wherein: The end of the guiding column is provided with a spherical surface, and the spherical surface is in contact with the inner wall of the guiding groove; A plurality of ball grooves are provided at intervals on the bottom surface of the annular support plate. A ball shaft is connected in each ball groove. The ball shaft corresponds to the radial direction of the annular support plate. The ball shaft is connected with a ball, and the bottom of the ball extends out of the ball groove to contact the annular baffle.

5. The detection and assembly machine for the battery pack fastener according to claim 1, wherein: Each of the plurality of pneumatic bolt clamps is provided with a pair of movable clamping plates and an opening and closing cylinder for connecting and cooperating with the clamping plates. The surfaces of the clamping plates are covered with anti-slip lines, and the clamping plates are both curved plates. The sizes and shapes of the curved plates are both adapted to the screw part; The opening and closing cylinder is electrically connected with the controller.

6. The inspection and assembly machine for the battery pack fastener according to claim 1, wherein: The optical detection mechanism includes a first camera and a second camera, and the vertical height and horizontal position of the first camera are both misaligned with those of the second camera.

Images