Locking device and assembly system

Abstract

The utility model belongs to the technical field of automobile assembly, and discloses a locking device and an assembly system.The locking device comprises a supporting base, a driving mechanism and a locking piece, the supporting base is provided with a separation station, the driving mechanism is installed on the supporting base, and the locking piece is connected to the output end of the driving mechanism; the driving mechanism can drive the locking piece to be switched between the opening state and the locking state, when the locking piece is in the opening state, the tightening gun drives the bolt to move to the separation station, when the locking piece is in the locking state, the locking piece locks the bolt at the separation station, and the assembling system comprises the locking device. According to the utility model, on the basis of the supporting seat, the driving mechanism and the locking piece are matched to lock and separate the bolt on the tightening gun, and when the bolt on the tightening gun needs to be separated, the tightening gun only needs to carry the bolt to move to a separation station and then leave, so that the step of manual operation is replaced, time and labor are saved, and the production efficiency is ensured; and the risk of errors is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile assembly technical field especially relates to a locking device and assembly system. BACKGROUND

[0002] In the automobile assembly production line, since there are a large number of bolts needing to be tightened, manual operation cannot meet the production efficiency, so it is necessary to configure a mechanical arm and a tightening gun to work.

[0003] The tightening gun is a kind of electric tool for screwing assembly bolts, which can tighten the bolts with set torque, has high reliability and good repeatability, and can guarantee the requirement of tightening process.

[0004] When assembling automobile parts, first, the tightening gun installed on the mechanical arm picks up and adsorbs the bolt on the fixed cylinder of the tightening shaft, then the mechanical arm drives the tightening gun to move to the assembly position of the bolt, and finally the tightening gun drives the tightening shaft to rotate to drive the bolt to rotate and realize tightening assembly.

[0005] In the existing production line, a plurality of tightening guns are usually assembled on the mechanical arm, after the picking operation, if there is a tightening gun that does not pick up the bolt, the bolts on the plurality of tightening guns need to be taken down manually, and then the picking operation is carried out again, or the un-picked bolt is taken out and installed on the idle tightening gun, after the tightening assembly operation is completed, if the bolt remains on the tightening gun, it means that the tightening assembly operation is not successful, so the remaining bolt needs to be taken down manually, and then the subsequent picking operation is carried out.

[0006] In the prior art, the bolt needs to be taken down manually, which is time-consuming and complicated, affects the production efficiency, and has the risk of failure. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a locking device and assembly system, which can efficiently and reliably take down the bolt on the tightening gun.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] The locking device is used for separating the bolt on the tightening gun, comprising:

[0010] The support seat is provided with a separation station;

[0011] The driving mechanism is installed on the support seat;

[0012] A locking member is connected to the output end of the driving mechanism, the driving mechanism can drive the locking member to switch between an open state and a locking state, when the locking member is in the open state, the tightening gun drives the bolt to move to the separation station, when the locking member is in the locking state, the locking member locks the bolt at the separation station.

[0013] As a preferred, the locking member is provided with two, two of the locking members are respectively connected to the output end of the driving mechanism, and are located on both sides of the separation station, the driving mechanism can drive two locking members to move towards or away from each other.

[0014] As a preferred, the locking member is provided with one, the support seat is provided with a locking wall, the separation station is located between the locking member and the locking wall, and the driving mechanism can drive the locking member to move close to or away from the locking wall.

[0015] As a preferred, a first sensor is further included, the first sensor is installed on the support seat, the first sensor is triggered when the locking member is in the open state and the bolt is in the separation station, and the driving mechanism is actuated to drive the locking member to switch to the locking state when the first sensor is triggered.

[0016] As a preferred, the locking device further includes a second sensor, the second sensor is provided on the support seat, the second sensor can be triggered when the locking member moves to the open state, and the driving mechanism stops acting when the second sensor is triggered.

[0017] As a preferred, the locking device further includes a third sensor, the third sensor is provided on the support seat, the third sensor can be triggered when the locking member moves to the locking state, and the driving mechanism stops acting when the third sensor is triggered.

[0018] As a preferred, the locking device further includes a trigger member, the trigger member is provided on the locking member, and the locking member is configured to trigger the third sensor through the trigger member.

[0019] As a preferred, the locking device further includes a collection box, the collection box is provided on the support seat, and the collection box is configured to receive the bolt released by the locking member.

[0020] As a preferred, the collection box is detachably installed on the support seat.

[0021] An assembly system includes a conveying device, a nail taking device, a mechanical arm, a tightening gun and the above-mentioned locking device.

[0022] The output end of the mechanical arm is provided with a plurality of the tightening guns, the conveying device conveys bolts to the bolt taking device, the mechanical arm drives the plurality of the tightening guns to pick up the bolts on the bolt taking device, when the plurality of the tightening guns are aligned with the assembly positions on the vehicle body, the tightening guns screw the bolts, when the bolts on the tightening guns need to be separated, the locking member is in the locking state, and the mechanical arm drives the bolts on the tightening guns to move to the separation station.

[0023] The utility model discloses the beneficial effects of:

[0024] On the basis of the support seat, the driving mechanism and the locking member can lock and separate the bolts on the tightening gun, when the driving mechanism drives the locking member to move to the open state, the tightening gun can drive the bolts to the separation station, then the driving mechanism drives the locking member to move to the locking state to lock the bolts at the separation station, so that when the tightening gun is finally away from the locking device, the bolts are left in the original position and separated from the tightening gun, so that after the picking operation and the tightening assembly operation, when the bolts on the tightening gun need to be separated, the tightening gun only needs to move to the separation station with the bolts and then leave, instead of manual operation, saving time and effort, ensuring production efficiency and reducing the risk of failure. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure diagram of the locking device that the utility model discloses an embodiment;

[0026] Figure 2 It is the plan view of the locking device that the utility model discloses an embodiment;

[0027] Figure 3 It is the elevation view of the locking device that the utility model discloses an embodiment;

[0028] Figure 4 It is the left view of the locking device that the utility model discloses an embodiment;

[0029] Figure 5 It is the right view of the locking device that the utility model discloses an embodiment;

[0030] Figure 6 It is the specific work flow chart of the assembly system that the utility model discloses an embodiment.

[0031] In the drawing:

[0032] 1, support seat;

[0033] 11, main seat body;

[0034] 12, bracket;

[0035] 13, first support frame; 131, first connecting plate; 1311, first long slot; 132, first support plate; 1321, first mounting groove;

[0036] 14, second support frame; 141, second connecting plate; 1411, second long slot; 142, second support plate; 1421, second mounting groove;

[0037] 15, third support frame; 151, third connecting plate; 1511, third long slot; 152, third support plate; 1521, third mounting groove;

[0038] 16, bearing frame;

[0039] 2, drive mechanism;

[0040] 3, locking member;

[0041] 4, trigger member;

[0042] 5, collection box. DETAILED DESCRIPTION

[0043] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar components having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and are not to be understood as limiting the present application.

[0044] In the description of the present application, unless explicitly defined and limited otherwise, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the description of the present application, unless explicitly defined and limited otherwise, the first feature "on" or "below" the second feature can include the first feature and the second feature in direct contact, or the first feature and the second feature not in direct contact but in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0046] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] like Figures 1-5 As shown, this utility model provides a locking device for separating bolts on a tightening gun, including a support base 1, a drive mechanism 2, and a locking element 3. The support base 1 has a separation station, the drive mechanism 2 is mounted on the support base 1, and the locking element 3 is connected to the output end of the drive mechanism 2. The drive mechanism 2 can drive the locking element 3 to switch between an open state and a locked state. When the locking element 3 is in the open state, the tightening gun moves the bolt to the separation station; when the locking element 3 is in the locked state, the locking element 3 locks the bolt at the separation station.

[0048] In this invention, based on the support base 1, the drive mechanism 2 and the locking component 3 cooperate to lock and separate the bolt on the tightening gun. When the drive mechanism 2 drives the locking component 3 to the open state, the tightening gun can move the bolt to the separation position. Then, the drive mechanism 2 drives the locking component 3 to the locked state to lock the bolt at the separation position. This ensures that when the tightening gun moves away from the locking device, the bolt is left in its original position and separated from the tightening gun. This allows the tightening gun to carry the bolt to the separation position and then leave when it is necessary to separate the bolt after the picking operation and tightening assembly operation, replacing the manual operation steps, saving time and effort, ensuring production efficiency, and reducing the risk of errors.

[0049] Specifically, the support base 1 includes a main body 11 and a bracket 12 installed on the main body 11, and the drive mechanism 2 is installed on the bracket 12, which is safer and more reliable.

[0050] In one embodiment, two locking elements 3 are provided. The two locking elements 3 are respectively connected to the output end of the drive mechanism 2 and are located on both sides of the separation station. The drive mechanism 2 can drive the two locking elements 3 to move towards or away from each other. The two locking elements 3 cooperate with each other to lock the bolt simply and reliably.

[0051] Specifically, the locking element 3 is plate-shaped, and anti-slip structures are provided on the opposite sides of the two locking elements 3, thereby increasing the friction when locking the bolt.

[0052] More specifically, the drive mechanism 2 is a pneumatic gripper, whose two output grippers can move towards each other or away from each other. Two locking members 3 are installed one-to-one on the opposite side of the two output grippers. The anti-slip structure includes strip grooves, with multiple strip grooves arranged parallel to each other and spaced apart in sequence. In other embodiments, the anti-slip structure also includes an anti-slip pad.

[0053] In another embodiment, the locking piece 3 is provided with one, the support base 1 is provided with a locking wall, the separation station is located between the locking piece 3 and the locking wall, and the driving mechanism 2 can drive the locking piece 3 to move close to or away from the locking wall to clamp or release the bolt. By providing one locking piece 3, the structure of the driving mechanism 2 is simplified, and the cost is reduced.

[0054] Specifically, the driving mechanism 2 includes a cylinder, and the cylinder drives the locking piece 3 to move to lock the bolt between the locking piece 3 and the support base 1.

[0055] In other embodiments, the driving mechanism 2 can further include a plurality of cylinders, and each cylinder drives a locking piece 3 to move.

[0056] Specifically, the locking device further includes a first sensor, the first sensor is installed on the support base 1, the locking piece 3 is in an open state, and the first sensor is triggered when the bolt is in the separation station. When the first sensor is triggered, the driving mechanism 2 acts to drive the locking piece 3 to switch to a locked state. By providing the first sensor, the driving mechanism 2 can timely and reliably drive the locking piece 3 to lock the bolt.

[0057] More specifically, the first sensor is an optical sensor, and the bolt blocks the detection end of the optical sensor when it is in the separation station, thereby triggering the optical sensor. The specific structure of the first sensor and its working principle and working method for detecting the bolt are conventional settings in the art, and will not be described here.

[0058] In other embodiments, the first sensor can also be a distance sensor or other types of sensors, which are not limited here.

[0059] Specifically, the support base 1 includes a first support frame 13, and the first sensor is installed on the first support frame 13. By providing the first support frame 13, the position of the first sensor can be more adapted to the separation station, thereby more reliably detecting the separation station.

[0060] More specifically, the first support frame 13 is installed on the main base body 11, the first support frame 13 includes a first connecting plate 131 and a first support plate 132 connected to each other, the first connecting plate 131 is provided with a first long slot hole 1311, the length direction of the first long slot hole 1311 is parallel to the first direction, the first direction is the locking direction of the locking piece 3, the first connecting plate 131 is adjustably installed on the top of the main base body 11 along the first direction by the bolt arranged in the first long slot hole 1311, and the first support plate 132 is provided with a first installation groove 1321 at one end away from the first connecting plate 131. The first sensor is installed in the first installation groove 1321.

[0061] In the embodiment, the first connecting plate 131 and the first supporting plate 132 are arranged at an angle, so that the detection end of the first sensor on the first supporting plate 132 is opposite the separating station.

[0062] Specifically, the locking device further comprises a second sensor, which is arranged on the support base 1 and can trigger the second sensor when the locking member 3 moves to the open state, and the driving mechanism 2 stops working when the second sensor is triggered. By arranging the second sensor, the driving mechanism 2 can accurately drive the two locking members 3 to move away from each other to the open state, so that the bolt can be more safely inserted between the two locking members 3.

[0063] More specifically, the support base 1 comprises a second supporting frame 14, and the second sensor is installed on the second supporting frame 14. By arranging the second supporting frame 14, the position of the second sensor can be more adapted to the locking member 3, so as to more accurately detect whether the two locking members 3 move to the open state.

[0064] More specifically, the second supporting frame 14 is installed on the main base body 11, and the second supporting frame 14 comprises a second connecting plate 141 and a second supporting plate 142. The second connecting plate 141 is provided with a second long slot hole 1411, the length direction of the second long slot hole 1411 is parallel to the second direction, the second direction is perpendicular to the first direction, and the second connecting plate 141 is adjustably installed on one side of the main base body 11 along the second direction by a bolt arranged in the second long slot hole 1411. The second supporting plate 142 is provided with a second mounting groove 1421 at an end away from the second connecting plate 141, and the second sensor is installed in the second mounting groove 1421.

[0065] In the embodiment, the second connecting plate 141 and the second supporting plate 142 are arranged in parallel and spaced apart, the second connecting plate 141 is connected to the second supporting plate 142 through an extension plate, and the second supporting plate 142 is away from the locking member 3 relative to the second connecting plate 141, so as to facilitate the installation of the second sensor. The second sensor is an infrared distance measuring sensor, and the infrared distance measuring sensor is triggered when the locking member 3 moves to a set distance from the detection end of the infrared distance measuring sensor. The specific structure of the second sensor and the working principle and method of detecting the bolt are conventional settings in the art, and will not be described here.

[0066] In other embodiments, the second sensor can also be a laser distance measuring sensor or other types of sensors, which are not limited here.

[0067] Specifically, the locking device further comprises a third sensor, the third sensor is arranged on the support base 1, when the locking pieces 3 move to the locking state, the third sensor can be triggered, when the third sensor is triggered, the driving mechanism 2 stops working. By arranging the third sensor, the driving mechanism 2 can accurately drive the two locking pieces 3 to move to the locking state, so that the bolt can be reliably locked.

[0068] More specifically, the support base 1 comprises a third support frame 15, and the third sensor is installed on the third support frame 15. By arranging the third support frame 15, the position of the third sensor can be more suitable for the locking pieces 3, so that whether the two locking pieces 3 move to the locking state can be more accurately detected.

[0069] More specifically, the third support frame 15 is installed on the main base body 11, the third support frame 15 comprises a third connecting plate 151 and a third support plate 152 connected with each other, the third connecting plate 151 is provided with a third long hole 1511, the length direction of the third long hole 1511 is parallel to the second direction, the third connecting plate 151 is adjustably installed on one side of the main base body 11 along the second direction by means of the bolt arranged in the third long hole 1511, and the third support plate 152 is provided with a third mounting groove 1521 at the end away from the third connecting plate 151, and the third sensor is installed in the third mounting groove 1521.

[0070] In the embodiment, the third connecting plate 151 and the third support plate 152 are perpendicular to each other, so that the third sensor is facilitated to be installed, the third sensor is a photoelectric sensor, when the locking pieces 3 move to the locking state, the detection end of the photoelectric sensor can be blocked, so that the photoelectric sensor is triggered, and the specific structure of the third sensor and the working principle and working method of detecting the bolt are conventional settings in the field, which will not be repeated here.

[0071] In other embodiments, the third sensor can also be a distance sensor or other types of sensors, which are not limited here.

[0072] Specifically, the second support frame 14 and the third support frame 15 are installed on the opposite sides of the main base body 11, the second sensor detects one locking piece 3, and the third sensor detects the other locking piece 3. The above arrangement avoids the mutual influence of the second sensor and the third sensor, and ensures the accuracy of detection.

[0073] More specifically, the locking device further comprises a trigger piece 4, the trigger piece 4 is arranged on the locking piece 3, the locking piece 3 is configured to trigger the third sensor through the trigger piece 4, when the driving mechanism 2 drives the two locking pieces 3 to move to the locking state, the trigger piece 4 blocks the detection end of the third sensor, so that the third sensor is triggered. The above arrangement makes the second sensor and the third sensor staggered, avoiding the influence and interference between each other.

[0074] In the embodiment, the first direction is horizontal direction, the second direction is vertical direction, the second support frame 14 and the third support frame 15 are arranged in the second direction, and the locking member 3 and the trigger member 4 are respectively arranged on the two sides of the output clamp in the first direction.

[0075] Specifically, the locking device further comprises a collection box 5, the collection box 5 is arranged on the support base 1, and the collection box 5 is configured to receive the bolts released by the locking member 3. The above arrangement facilitates recycling of the bolts.

[0076] More specifically, the collection box 5 is detachably arranged on the support base 1. The above arrangement facilitates the removal and transportation of the collected bolts in the collection box 5.

[0077] In the embodiment, the support base 1 comprises a bearing frame 16, the collection box 5 is detachably arranged on the bearing frame 16, the bearing frame 16 is arranged on the main base 11 and located below the bracket 12 in the second direction, the top surface of the bearing frame 16 is provided with a bearing groove, and the collection box 5 is arranged in the bearing groove.

[0078] The locking device of the embodiment further comprises a separation controller, the driving mechanism 2, the first sensor, the second sensor and the third sensor are respectively electrically connected to the separation controller, and the separation controller controls the driving mechanism 2 to act according to the detection signals received from the first sensor, the second sensor and the third sensor.

[0079] In specific work, the separation controller controls the driving mechanism 2 to act, so that the driving mechanism 2 drives the two locking members 3 to move away from each other until the second sensor is triggered. When the second sensor is triggered, a signal is sent to the separation controller, and the separation controller controls the driving mechanism 2 to stop acting. At this time, the two locking members 3 move to the open state, and the tightening gun can move the bolts to the separation station between the two locking members 3. When the bolts are moved to the separation station, the first sensor is triggered, and a signal is sent to the separation controller. The separation controller controls the driving mechanism 2 to act, so that the driving mechanism 2 drives the two locking members 3 to move towards each other until the third sensor is triggered. When the third sensor is triggered, a signal is sent to the separation controller, and the separation controller controls the driving mechanism 2 to stop acting. At this time, the two locking members 3 complete the locking of the bolts. The specific structure, circuit connection relationship and control method of the separation controller, the driving mechanism 2, the first sensor, the second sensor and the third sensor are conventional settings in the art, which will not be described here.

[0080] The utility model also provides an assembly system, including conveying device, take nail device, mechanical arm, tightening gun and above-mentioned locking device. Among them, the output end of mechanical arm is installed with a plurality of tightening gun, conveying device conveys bolt to take nail device, mechanical arm drives a plurality of tightening gun to pick up bolt on take nail device, when mechanical arm drives a plurality of tightening gun to aim at the assembly position on the car body, tightening gun screws bolt, the bolt on tightening gun needs to separate, when locking piece 3 is in locking state, mechanical arm drives the bolt on tightening gun to move to separate work position.

[0081] In the assembly system of the utility model, on the basis of support seat 1, the bolt on the tightening gun can be locked and separated by the cooperation of driving mechanism 2 and locking piece 3, when driving mechanism 2 drives locking piece 3 to move to the open state, under the drive of mechanical arm, the tightening gun can take the bolt to separate work position, then driving mechanism 2 drives locking piece 3 to move to the locking state, to lock the bolt at separate work position, so that when the tightening gun is far away from the locking device finally, the bolt is left in situ, separated from the tightening gun, so that after picking operation and after tightening assembly operation, when the bolt on the tightening gun needs to be separated, it only needs to move to separate work position and then leave, instead of manual operation, saving time and effort, ensuring production efficiency and reducing the risk of failure.

[0082] Specifically, the assembly system further comprises an assembly controller electrically connected to the tightening gun for detecting whether the tightening assembly operation of the tightening gun is successful, and a detection mechanism is arranged on the nail taking device. In the picking operation, if the tightening gun does not pick up the bolt, the detection mechanism sends an error signal.

[0083] The working process of the assembly system is as follows: first, the conveying device conveys the bolt to the nail taking device; then, the mechanical arm drives a plurality of tightening guns to pick up the bolt on the nail taking device for picking operation; finally, the mechanical arm drives a plurality of tightening guns to screw the bolt on the assembly position on the car body for tightening assembly operation.

[0084] More specifically, after the picking operation, if the tightening gun does not pick up the bolt, the detection mechanism on the nail taking device sends an error signal, and it is determined that the picking operation is unsuccessful. When the picking operation is unsuccessful, the mechanical arm drives a plurality of tightening guns to move to the locking device, so that the remaining bolts on the tightening gun are moved to the separate work position one by one, and the two locking pieces 3 are driven by the driving mechanism 2 to lock. After locking, the mechanical arm drives the tightening gun to move away from the locking device, so that the bolt is separated from the tightening gun. Then, the driving mechanism 2 drives the two locking pieces 3 to release the bolt, and the bolt falls into the collection box 5 under its own gravity operation until all the remaining bolts are separated. After all the remaining bolts are separated, the picking operation is performed again until the picking operation is successful.

[0085] After the picking operation, the specific working process of the assembly system is as follows:

[0086] Step one, after the picking operation, it is judged whether the tightening gun realizes picking of the bolt.

[0087] Step two, if all the tightening guns realize picking of the bolt, it is judged that the picking operation is successful, if there is a tightening gun that does not realize picking of the bolt, the detection mechanism on the nail device sends an error signal, and it is judged that the picking operation is unsuccessful.

[0088] Step three, when the picking operation is unsuccessful, the mechanical arm drives the plurality of tightening guns to move to the locking device, so that the bolts remaining on the tightening guns are moved to the separation station one by one, the two locking pieces 3 are driven by the driving mechanism 2 to be locked, after locking, the mechanical arm drives the tightening gun to move away from the locking device, so that the bolts are separated from the tightening gun, then the driving mechanism 2 drives the two locking pieces 3 to release the bolts, the bolts fall into the collection box 5 under the action of their own gravity, until all the remaining bolts are separated.

[0089] Step four, after all the remaining bolts are separated, the picking operation is performed again until the picking operation is successful.

[0090] More specifically, after the tightening assembly operation, if there are still bolts remaining on the tightening gun, the assembly controller sends a signal, and it is judged that the tightening assembly operation is not successful; when the tightening assembly operation is unsuccessful, the mechanical arm drives the plurality of tightening guns to move to the locking device, so that the bolts remaining on the tightening guns are moved to the separation station one by one, the two locking pieces 3 are driven by the driving mechanism 2 to be locked, after locking, the mechanical arm drives the tightening gun to move away from the locking device, so that the bolts are separated from the tightening gun, then the driving mechanism 2 drives the two locking pieces 3 to release the bolts, the bolts fall into the collection box 5 under the action of their own gravity, until all the remaining bolts are separated.

[0091] After the tightening assembly operation, the specific working process of the assembly system is as follows:

[0092] Step one, after the tightening assembly operation, it is judged whether the tightening gun realizes picking of the bolt.

[0093] Step two, if all the tightening guns realize picking of the bolt, it is judged that the picking operation is successful, if there is a tightening gun that does not realize picking of the bolt, the detection mechanism on the nail device sends an error signal, and it is judged that the picking operation is unsuccessful.

[0094] Step three, when the tightening assembly operation is not successful, the mechanical arm drives the plurality of tightening guns to move to the locking device, so that the remaining bolts on the tightening guns are moved to the separation station one by one, the two locking pieces 3 are driven by the driving mechanism 2 to be locked, after locking, the mechanical arm drives the tightening guns to be separated from the locking device, so that the bolts are separated from the tightening guns, then the driving mechanism 2 drives the two locking pieces 3 to release the bolts, and the bolts fall into the collection box 5 under the action of their own gravity until all the remaining bolts are separated.

[0095] As shown in Figure 6 , the specific working process of the assembly system is as follows:

[0096] Step one, the conveying device conveys the bolts to the bolt taking device.

[0097] Step two, the mechanical arm drives the plurality of tightening guns to pick up the bolts on the bolt taking device to perform the picking operation.

[0098] Step three, determine whether the picking operation is successful.

[0099] Step four, if all the tightening guns realize the picking of the bolts, it is determined that the picking operation is successful, if there is a tightening gun that does not realize the picking of the bolts, the detection mechanism on the bolt taking device sends an error signal, and it is determined that the picking operation is not successful.

[0100] Step five, when the picking operation is not successful, the mechanical arm drives the plurality of tightening guns to move to the locking device, so that the remaining bolts on the tightening guns are moved to the separation station one by one, the two locking pieces 3 are driven by the driving mechanism 2 to be locked, after locking, the mechanical arm drives the tightening guns to be separated from the locking device, so that the bolts are separated from the tightening guns, then the driving mechanism 2 drives the two locking pieces 3 to release the bolts, and the bolts fall into the collection box 5 under the action of their own gravity until all the remaining bolts are separated.

[0101] Step six, after the remaining bolts are separated, the picking operation is performed again until the picking operation is successful.

[0102] Step seven, after the picking operation is successful, the mechanical arm drives the plurality of tightening guns to rotate the bolts on the assembly position of the vehicle body, and performs the tightening assembly operation.

[0103] Step eight, determine whether the tightening assembly operation is successful.

[0104] Step nine, if there is no bolt remaining on all the tightening guns, it is determined that the tightening assembly operation is successful, if there is a bolt remaining on the tightening gun, the assembly controller sends a signal, and it is determined that the tightening assembly operation is not successful.

[0105] Step ten, when the tightening assembly operation is not successful, the mechanical arm drives the plurality of tightening guns to move to the locking device, so that the remaining bolts on the tightening guns are moved to the separation station one by one, the two locking pieces 3 are driven by the driving mechanism 2 to lock, after locking, the mechanical arm drives the tightening guns to move away from the locking device, so that the bolts are separated from the tightening guns, then the driving mechanism 2 drives the two locking pieces 3 to release the bolts, and the bolts fall into the collection box 5 under the action of their own gravity, until all the remaining bolts are separated.

[0106] In the embodiment, the output end of the mechanical arm is provided with two tightening guns, the tightening guns, the conveying device, the nail taking device, the assembly controller and the mechanical arm are conventional devices in the art, and the specific structure and the coordination control principle thereof will not be described here.

[0107] The assembly system of the utility model in working time, need not manual intervention judgment, need not enter the safety door, there is no risk of manual misoperation, the locking device and the intelligent program are bound, realize the replacement of the intelligent manufacturing to the manual, through the intelligent detection and the self cycle's judgment logic, avoid the risk point produced by the manual operation.

[0108] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or changes can be made. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model claims.

Claims

1. Locking device, characterized in that A device for separating a bolt on a tightening gun, comprising: a support base (1) provided with a separation station; a driving mechanism (2) mounted on the support base (1); a locking member (3) connected to the output end of the driving mechanism (2), the driving mechanism (2) being capable of driving the locking member (3) to switch between an open state and a locking state, the locking member (3) being in the open state when the tightening gun drives the bolt to move to the separation station, the locking member (3) being in the locking state when the locking member (3) locks the bolt at the separation station.

2. The locking device of claim 1, wherein, The locking member (3) is provided with two, two locking members (3) are respectively connected to the output end of the driving mechanism (2) and located on both sides of the separation station, and the driving mechanism (2) is capable of driving two locking members (3) to move towards or away from each other.

3. The locking device of claim 1, wherein, The locking member (3) is provided with one, the support base (1) is provided with a locking wall, the separation station is located between the locking member (3) and the locking wall, and the driving mechanism (2) is capable of driving the locking member (3) to move close to or away from the locking wall.

4. The locking device of claim 1, wherein, It also includes a first sensor mounted on the support base (1), the locking member (3) is in the open state, and the first sensor is triggered when the bolt is in the separation station, and the first sensor is triggered, the driving mechanism (2) is actuated to drive the locking member (3) to switch to the locking state.

5. The locking device of claim 1, wherein, The locking device also includes a second sensor provided on the support base (1), the locking member (3) moves to the open state, and the second sensor is triggered, and the second sensor is triggered, and the driving mechanism (2) stops acting.

6. The locking device of claim 1, wherein, The locking device also includes a third sensor provided on the support base (1), the locking member (3) moves to the locking state, and the third sensor is triggered, and the third sensor is triggered, and the driving mechanism (2) stops acting.

7. The locking device of claim 6, wherein, The locking device also includes a trigger member (4) provided on the locking member (3), and the locking member (3) is configured to trigger the third sensor through the trigger member (4).

8. A locking device according to any one of claims 1-7, characterized in that The locking device also includes a collection box (5) provided on the support base (1), and the collection box (5) is configured to receive the bolt released by the locking member (3).

9. The locking device of claim 8, wherein, The collection box (5) is detachably mounted on the support base (1).

10. Assembly system, characterized in that, It includes a conveying device, a nail taking device, a mechanical arm, a tightening gun and the locking device of any one of claims 1-9. The output end of the mechanical arm is provided with a plurality of the tightening guns, the conveying device conveys the bolts to the bolt taking device, the mechanical arm drives the plurality of the tightening guns to pick up the bolts on the bolt taking device, when the plurality of the tightening guns are aligned with the assembly positions on the vehicle body, the tightening guns screw the bolts, when the bolts on the tightening guns need to be separated, the mechanical arm drives the bolts on the tightening guns to move to the separation station under the condition that the locking member (3) is in the locking state.

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