Rotary hanging device for coating production line

Abstract

The utility model discloses a transfer hanging device for a coating production line, which comprises a first conveying line, a follow-up tracking mechanism, a transfer hanging manipulator and a control system, the follow-up tracking mechanism comprises a frame, a follower movably arranged on the frame, and a displacement sensor for detecting the displacement of the follower; the follower is configured to be driven by the coating jig to move together when the coating jig moves to the detection station and to be separated from the coating jig when the coating jig leaves the detection station; and the control system is in control connection with the rotating and hanging mechanical arm, the control system is in signal connection with the displacement sensor, and the control system is configured to control the rotating and hanging mechanical arm to rotate and hang a workpiece at the workpiece feeding station to the coating jig moving to the rotating and hanging station based on a detection signal of the displacement sensor. The jig is accurately tracked through the follow-up tracking mechanism and is not affected by tensioning and shrinking of the conveying chain, and the rotating and hanging precision and rotating and hanging efficiency of the rotating and hanging mechanical arm can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating, in particular to a rotating hanging device used in a coating production line. Background Art

[0002] In the field of powder coating technology, a coating production line is usually used to perform a series of coating process operations on workpieces. For example, for the coating operation of automobile wheels, a chain conveyor line is usually used to transport the automobile wheels to the designated loading station. The automobile wheels that have arrived at the loading station are clamped by a rotating robot and are rotated to a fixture on another adjacent chain conveyor line for transportation, so that the fixture on the other chain conveyor line can continue to transport the automobile wheels to the corresponding process workshop for corresponding process treatment. The rotating robot is usually located at the rotating station where two chain conveyor lines intersect. In the rotating area of ​​the rotating robot, the accuracy of tracking the workpiece and capturing the signal directly affects the grasping accuracy of the rotating robot. Since the driving mechanism of the chain conveyor line is usually far away from the rotating robot, and the acquisition of the grasping signal of the rotating robot is affected by the distance and the tension and expansion of the conveyor chain, the data transmission is unstable. Originally, the jig would move to the transfer and hanging station at a specified time and wait for the transfer and hanging robot to clamp the workpiece onto the jig. However, the jig might not reach the specified position, resulting in inaccurate clamping by the transfer and hanging robot, frequent failures, and low transfer and hanging efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a transfer hanging device for a coating production line with more accurate transfer and higher efficiency.

[0004] To this end, the present invention provides a transfer hanging device for a coating production line, comprising: a first conveyor line, which is configured to be suitable for conveying a coating jig for carrying a workpiece, a detection station and a transfer hanging station located downstream of the detection station are provided on the conveying path of the first conveyor line; a follow-up tracking mechanism is provided at the detection station, the follow-up tracking mechanism includes a frame, a follower movably provided on the frame, and a displacement sensor for detecting the displacement of the follower; the follower is configured to be moved by the coating jig when the coating jig moves to the detection station Driven to move together and disengaged from the painting jig when the painting jig leaves the detection station; a transfer hanging robot is arranged at the transfer hanging station, and the transfer hanging robot is constructed to be suitable for transferring a workpiece at a loading station to the painting jig traveling to the transfer hanging station; a control system is control-connected to the transfer hanging robot, and the control system is connected to the displacement sensor signal, and the control system is constructed to control the transfer hanging robot to transfer the workpiece at the loading station to the painting jig traveling to the transfer hanging station based on the detection signal of the displacement sensor.

[0005] According to one embodiment of the present invention, the first conveyor line includes a first conveyor track, a first conveyor chain movably arranged on the first conveyor track, and a first driving mechanism for driving the first conveyor chain to move, and the painting jig is fixedly supported on the first conveyor chain.

[0006] According to one embodiment of the present invention, the transfer hanging device further includes a second conveying line for conveying the workpiece to the loading station.

[0007] According to one embodiment of the present invention, the second conveyor line includes a second conveyor track, a second conveyor chain movably arranged on the second conveyor track, and a second driving mechanism for driving the second conveyor chain to move, and the second conveyor chain is mounted with a hanger for carrying workpieces.

[0008] According to one embodiment of the present invention, a position sensor for detecting whether the hanger reaches the loading station is provided on the second conveying track, and the control system is connected to the position sensor signal. The control system is constructed to control the transfer robot to transfer the workpiece at the loading station to the painting jig traveling to the transfer station based on the detection signal of the position sensor and the detection signal of the displacement sensor.

[0009] According to an embodiment of the present invention, the follower tracking mechanism further includes two follower sprockets rotatably arranged on the frame, a follower chain connected between the two follower sprockets, and the follower is mounted on the follower chain.

[0010] According to an embodiment of the present invention, the displacement sensor is an encoder, which is mounted on the frame and is transmission-connected to one of the follower sprockets.

[0011] According to one embodiment of the present invention, the painting jig includes a jig rod, and the follower includes a shift block. When the painting jig moves to the inspection station, the shift block abuts against the jig rod, and when the painting jig leaves the inspection station, the shift block disengages from the jig rod.

[0012] According to an embodiment of the present invention, a supporting structure for supporting the follower chain is provided on the frame.

[0013] According to one embodiment of the present invention, an adjustment seat is movably provided on the frame, one of the follower sprockets is mounted on the adjustment seat, an adjustment bolt is provided between the adjustment seat and the frame, and the adjustment bolt is constructed to be suitable for adjusting the distance between the two follower sprockets so as to adjust the tension of the follower chain.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] By installing a tracking mechanism at the inspection station of the first conveyor line, the follower of the tracking mechanism can be moved and displaced by the painting jig when the painting jig reaches the inspection station. A position sensor can detect this displacement information and feedback the detection signal to the control system. The control system can then determine that the painting jig is about to reach the transfer station and send a control signal to the transfer robot, which then starts the transfer robot and transfers the workpiece at the loading station to the painting jig that has arrived at the transfer station. The tracking mechanism accurately tracks the jig without being affected by the tension and contraction of the conveyor chain, which can improve the transfer accuracy and efficiency of the transfer robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a transfer hanging device according to an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram of the cooperation between the follow-up tracking mechanism and the coating fixture shown in ;

[0018] Figure 3 yes Figure 2 A partial enlarged view of point A shown in FIG;

[0019] Figure 4 yes Figure 1 A schematic structural diagram of the second conveyor line conveying workpieces shown in FIG;

[0020] Figure 5 yes Figure 4 A partial enlarged view of point B shown in FIG;

[0021] Figure 6 yes Figure 1 A front view of the follow-up tracking mechanism shown in FIG;

[0022] Figure 7 yes Figure 6 A partial enlarged view of point C shown in FIG;

[0023] Figure 8 yes Figure 6 A side view of the follow-up tracking mechanism shown in ;

[0024] Figure 9 yes Figure 6 A top view of the follow-up tracking mechanism shown in ;

[0025] The accompanying drawings are numerals as follows:

[0026] 100. Transfer and hanging device; 200. Workpiece;

[0027] 101. First conveyor line; 102. Painting jig; 103. Follow-up tracking mechanism; 104. Frame; 105. Follower; 106. Displacement sensor; 107. Rotating hanging robot; 108. First conveyor track; 109. First conveyor chain; 110. First driving mechanism; 111. Second conveyor line; 112. Second conveyor track; 113. Second conveyor chain; 114. Second driving mechanism; 115. Hanger; 116. Follower sprocket; 117. Follower chain; 118. Jig rod; 119. Shift block; 120. Support structure; 121. Adjustment seat; 122. Adjustment bolt. DETAILED DESCRIPTION

[0028] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the present invention.

[0029] according to Figures 1 to 5As shown, one embodiment of the present invention provides a swivel device 100 for a coating production line, the swivel device 100 comprising a first conveyor line 101, a follower tracking mechanism 103, a swivel manipulator 107, and a control system. The first conveyor line 101 is configured to transport a coating jig 102 carrying a workpiece 200. An inspection station and a swivel station downstream of the inspection station are provided along the conveying path of the first conveyor line 101. The follower tracking mechanism 103 is disposed at the inspection station and comprises a frame 104, a follower 105 movably disposed on the frame 104, and a displacement sensor 106 for detecting the displacement of the follower 105. The follower 105 is configured to be driven by the coating jig 102 when the coating jig 102 reaches the inspection station and to be disengaged from the coating jig 102 when the coating jig 102 leaves the inspection station. A transfer robot 107 is disposed at the transfer station and is configured to transfer a workpiece 200 at the loading station to a coating jig 102 that has arrived at the transfer station. A control system is connected to the transfer robot 107 for control purposes and is signal-connected to the displacement sensor 106. The control system is configured to control the transfer robot 107 based on detection signals from the displacement sensor 106 to transfer the workpiece 200 at the loading station to the coating jig 102 that has arrived at the transfer station.

[0030] By setting a follow-up tracking mechanism 103 at the inspection station of the first conveyor line 101, the follower 105 of the follow-up tracking mechanism 103 can be driven by the painting jig 102 to move and generate displacement when the painting jig 102 reaches the inspection station. The position sensor can detect the displacement information and feedback the detection signal to the control system. The control system can then determine that the painting jig 102 is about to reach the transfer station and send a control signal to the transfer robot 107, thereby controlling the transfer robot 107 to start and transfer the workpiece 200 at the loading station to the painting jig 102 that has arrived at the transfer station. The follow-up tracking mechanism 103 can accurately track the displacement information of the painting jig 102 without being affected by the tension and contraction of the conveyor chain, thereby improving the transfer accuracy and efficiency of the transfer robot 107.

[0031] according to Figure 2 and Figure 3As shown, the first conveyor line 101 includes a first conveyor track 108, a first conveyor chain 109 movably disposed on the first conveyor track 108, and a first drive mechanism 110 for driving the first conveyor chain 109. The painting jig 102 is fixedly supported on the first conveyor chain 109. In this embodiment, the first conveyor line 101 is a ground conveyor chain, the first drive mechanism 110 is a reduction motor, and the workpiece 200 is an automobile wheel hub. In other embodiments, the first conveyor line 101 may also utilize chain conveying equipment such as a suspended conveyor chain or an accumulation conveyor chain, and the first drive mechanism 110 may also utilize a speed-regulating motor, without limitation.

[0032] according to Figure 4 and Figure 5 As shown, the swivel hanging device 100 also includes a second conveyor line 111 for conveying the workpiece 200 to the loading station. The second conveyor line 111 includes a second conveyor track 112, a second conveyor chain 113 movably arranged on the second conveyor track 112, and a second drive mechanism 114 for driving the second conveyor chain 113 to move. The second conveyor chain 113 is mounted with a hanger 115 for carrying the workpiece 200. In this embodiment, the second conveyor line 111 is a suspended conveyor chain, and the second drive mechanism 114 is a reduction motor. The hanger 115 is suspended from the second conveyor chain 113 and has multiple support rods arranged in an upward and downward direction. Multiple automobile wheel hubs are supported on each support rod. The automobile wheel hubs are conveyed to the loading station via the second conveyor line 111, making it convenient for the swivel hanging manipulator 107 to grasp the workpiece 200. In other embodiments, the second conveyor line 111 may not be provided, and the loading station may be a fixed placement area for stacking the workpieces 200. Workpieces 200 such as automobile wheels can be transported to the loading station by workers, mobile robots, or stacking carts. Alternatively, the second conveyor line 111 may be a conveying device such as a belt conveyor, a chain conveyor, or a roller conveyor. Alternatively, the second conveyor line 111 may be an accumulation chain conveying device that conveys the workpieces 200 via an accumulation cart. Alternatively, the second conveyor line 111 may have the same structure as the first conveyor line 101 and also use a ground conveyor chain, without specific limitation.

[0033] A position sensor for detecting whether the hanger 115 has reached the loading station is provided on the second conveying track 112, and the control system is connected to the position sensor signal. The control system is constructed to control the transfer hanging robot 107 to transfer the workpiece 200 at the loading station to the coating jig 102 traveling to the transfer hanging station based on the detection signal of the position sensor and the detection signal of the displacement sensor 106. When the workpiece 200 is transported to the loading station by the first conveyor line 101, the position sensor can feed back the detection signal to the control system, and the control system can determine that the workpiece 200 has reached the loading station. When the control system receives the detection signals fed back from the position sensor and the displacement sensor 106 at the same time, it sends a control signal to the transfer hanging robot 107, controlling the transfer hanging robot 107 to transfer the workpiece 200 at the loading station to the coating jig 102 traveling to the transfer hanging station. In this embodiment, the position sensor is a photoelectric sensor and the control system is a PLC controller. In other embodiments, the position sensor may also be an infrared sensor, a proximity switch, and the control system may also be a control chip, a microcontroller, etc., without specific limitation.

[0034] according to Figures 6 to 9 As shown, the tracking mechanism 103 also includes two follower sprockets 116 rotatably mounted on the frame 104, a follower chain 117 connected between the two follower sprockets 116, and the follower 105 mounted on the follower chain 117. The displacement sensor 106 is an encoder mounted on the frame 104 and in transmission connection with one of the follower sprockets 116. When the conveyor chain of the first conveyor line 101 drives the painting jig 102 to the inspection station, the painting jig 102 can move the follower 105 along with it, thereby rotating the follower chain 117 and the two follower sprockets 116. The encoder simultaneously records the displacement information of the follower 105 and feeds a displacement detection signal to the control system. Based on the encoder detection signal, the control system controls the transfer robot 107 to transfer the workpiece 200 at the loading station to the painting jig 102 that has arrived at the transfer station.

[0035] Specifically, since the distance between the inspection station and the transfer station is fixed, and the transfer robot 107 often needs a certain amount of action time when grabbing the workpiece 200 at the loading station and transfering it to the coating jig 102 moving to the transfer station. For example, if the distance between the inspection station and the transfer station is L1, when the painting jig 102 reaches the inspection station and moves with the follower 105, the encoder begins recording the displacement information of the follower 105 and feeds back a displacement detection signal to the control system. When the painting jig 102 loses contact with the follower 105, the encoder feeds back a displacement signal L2 to the control system. The remaining distance between the painting jig 102 and the transfer robot 107 can be expressed as L1-L2, and the conveying speed of the first conveyor line 101 can be expressed as V1. The time T required for the transfer robot 107 to grab the workpiece 200 from the loading station and transfer it to the painting jig 102 can be expressed as: T = (L1-L2) / V1. Therefore, the control system can adjust the control of the transfer robot 107 based on the conveying speed of the first conveyor line 101 and track the accurate position of the painting jig 102 through the tracking mechanism 103. The transfer robot 107 can accurately transfer the workpiece 200 at the loading station to the coating jig 102, and the transfer efficiency is higher.

[0036] Based on Figure 2 and Figure 3 As shown, the painting jig 102 includes a jig rod 118, and the follower 105 includes a shift block 119. When the painting jig 102 moves to the inspection station, the shift block 119 abuts the jig rod 118, and when the painting jig 102 leaves the inspection station, the shift block 119 disengages from the jig rod 118. In other embodiments, the follower 105 may also be a shift fork or a shift rod, as long as at least a portion of the follower 105 blocks the movement path of the painting jig 102 when the painting jig 102 passes through the inspection station.

[0037] according to Figure 9 As shown, to ensure that the follower 105 maintains contact with the painting jig 102 during movement, a support structure 120 is provided on the frame 104 for supporting the follower chain 117. The follower chain 117 is supported on the support structure 120, preventing significant vibration during transmission. An adjustment seat 121 is movably provided on the frame 104, on which one of the follower sprockets 116 is mounted. An adjustment bolt 122 is provided between the adjustment seat 121 and the frame 104. The adjustment bolt 122 is configured to adjust the distance between the two follower sprockets 116 to adjust the tension of the follower chain 117. This ensures a constant transmission connection between the follower chain 117 and the two follower sprockets, preventing accidental disengagement of the follower chain 117 from the follower sprockets.

[0038] In other embodiments, the follow-up tracking mechanism 103 may not be a transmission method of a sprocket and chain to achieve that the follower 105 can be driven by the coating jig 102 to produce a linear displacement. The follow-up tracking mechanism 103 may also be a transmission structure of a slide rail slider. For example, a slide rail extending along the conveying path of the first conveyor line 101 is set on the frame 104 of the follow-up tracking mechanism 103, and a slider is slidably set on the slide rail to fix the follower 105 on the slider. The displacement sensor 106 can adopt other linear displacement sensors 106, such as magnetostrictive displacement sensor 106, photoelectric displacement sensor 106, laser displacement sensor 106, etc., without specific limitation.

[0039] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the scope of protection of the present invention.

Claims

1. A transfer hanging device for a coating production line, characterized in that: include: A first conveyor line is configured to convey a coating jig for carrying a workpiece, wherein a conveying path of the first conveyor line is provided with an inspection station and a transfer station located downstream of the inspection station; A follow-up tracking mechanism is provided at the inspection station, comprising a frame, a follower movably provided on the frame, and a displacement sensor for detecting displacement of the follower; the follower is configured to be driven by the painting jig to move when the painting jig moves to the inspection station and to be disengaged from the painting jig when the painting jig leaves the inspection station; A transfer hanging robot is provided at the transfer hanging station, and is configured to transfer a workpiece at a loading station to a coating jig traveling to the transfer hanging station; A control system is connected to the transfer robot control, and the control system is connected to the displacement sensor signal. The control system is constructed to: control the transfer robot based on the detection signal of the displacement sensor to transfer the workpiece at the loading station to the painting jig traveling to the transfer station.

2. The transfer hanging device for a coating production line according to claim 1, characterized in that: The first conveying line includes a first conveying track, a first conveying chain movably arranged on the first conveying track, and a first driving mechanism for driving the first conveying chain to move. The painting jig is fixedly supported on the first conveying chain.

3. The transfer hanging device for a coating production line according to claim 1, characterized in that: The transfer hanging device also includes a second conveying line for conveying the workpiece to the loading station.

4. The transfer hanging device for a coating production line according to claim 3, characterized in that: The second conveying line includes a second conveying track, a second conveying chain movably arranged on the second conveying track, and a second driving mechanism for driving the second conveying chain to move. A hanger for carrying workpieces is mounted on the second conveying chain.

5. The transfer hanging device for a coating production line according to claim 4, characterized in that: A position sensor for detecting whether the hanger reaches the loading station is provided on the second conveying track. The control system is connected to the position sensor signal. The control system is constructed to control the transfer robot to transfer the workpiece at the loading station to the painting jig traveling to the transfer station based on the detection signal of the position sensor and the detection signal of the displacement sensor.

6. The transfer hanging device for a coating production line according to claim 1, characterized in that: The follower tracking mechanism further comprises two follower sprockets rotatably arranged on the frame, a follower chain connected between the two follower sprockets, and the follower is mounted on the follower chain.

7. The transfer hanging device for a coating production line according to claim 6, characterized in that: The displacement sensor is an encoder, which is mounted on the frame and is transmission-connected to one of the follower sprockets.

8. The transfer hanging device for a coating production line according to claim 6, characterized in that: The painting jig includes a jig rod, and the follower includes a shift block. When the painting jig moves to the inspection station, the shift block abuts against the jig rod, and when the painting jig leaves the inspection station, the shift block disengages from the jig rod.

9. The transfer hanging device for a coating production line according to claim 6, characterized in that: The frame is provided with a supporting structure for supporting the follower chain.

10. The transfer hanging device for a coating production line according to claim 6, characterized in that: An adjustment seat is movably provided on the frame, one of the follower sprockets is mounted on the adjustment seat, an adjustment bolt is provided between the adjustment seat and the frame, and the adjustment bolt is configured to adjust the distance between the two follower sprockets so as to adjust the tension of the follower chain.

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