A conveyor transfer apparatus and method

Abstract

The present application belongs to the technical field of workpiece transfer, and particularly relates to a conveying and transferring device and method. The device comprises: a conveying RGV trolley for conveying workpieces; a vertical lifting and posture adjusting device comprising a base, a first bearing platform, a second bearing platform and an electric cylinder; the first bearing platform is hinged to the base, the lower part of the first platform is provided with a slide rail, and a vertical lifting block is slidably arranged on the slide rail; a fixing seat is arranged on the base, the fixed end of the electric cylinder is fixed on the fixing seat, and the telescopic end of the electric cylinder is hinged to the vertical lifting block; the upper part of the first bearing platform is provided with a lifting guide rail; the bottom of the second bearing platform is provided with a lifting slide block; a clamping device is arranged on the second bearing platform; a general control system is in signal connection with the conveying RGV trolley and the vertical lifting and posture adjusting device; a transfer table is provided with a trolley rail for conveying the conveying RGV trolley; the base of the vertical lifting and posture adjusting device is fixed on the transfer table, and the vertical lifting end of the base is located outside the transfer table. The device has the advantage of high automation degree.

Description

Technical Field

[0001] This invention relates to the field of workpiece transfer technology, and more specifically to a conveying and transfer device and method. Background Technology

[0002] The description of the background art in this invention pertains to related technologies and is used merely for illustration and to facilitate understanding of the invention. It should not be construed as the applicant explicitly believing or presuming that the invention was prior art on the filing date of the first application.

[0003] During the inspection of a workpiece, it is necessary to transfer the workpiece to a designated position and then change it from a horizontal state to an upright state on the corresponding turntable. After the inspection is completed, it is then changed from an upright state to a horizontal state. This requires the use of conveying and orientation adjustment equipment. However, the current equipment has a low degree of automation, which greatly affects the accuracy and efficiency of the work. Summary of the Invention

[0004] The purpose of this invention is to provide a conveying and transfer device and method.

[0005] A conveying and transfer device, comprising:

[0006] RGV trolleys are used to transport workpieces;

[0007] An erection and posture adjustment device includes a base, a first support platform, a second support platform, and an electric cylinder. The fixed end of the first support platform is hinged to the erection end of the base. A slide rail is provided at the bottom of the first platform, and an erection block that slides on the slide rail and abuts against the bottom of the first support platform is mounted on the slide rail. A fixed seat is provided on the base, and the fixed end of the electric cylinder is fixed to the fixed seat. The telescopic end of the electric cylinder is hinged to the erection block. A lifting guide rail is provided at the top of the first support platform. A lifting slider that cooperates with the lifting guide rail is provided at the bottom of the second support platform. A clamping device is provided on the second support platform.

[0008] The overall control system is connected to the conveying RGV trolley and the erection and attitude adjustment device via signals.

[0009] A transfer platform is provided with rails for the transport RGV trolley; the base of the erection and adjustment device is fixed on the transfer platform, and the erection end of the base is located outside the transfer platform.

[0010] Furthermore, the clamping device includes clamping grippers located on both sides of the upper surface of the second bearing platform, clamping guide rails are provided on both sides of the upper surface of the second bearing platform, and clamping sliders that cooperate with the clamping guide rails are provided at the lower part of the clamping grippers.

[0011] Furthermore, a rigid chain is provided on the second bearing platform.

[0012] Furthermore, the height of the base is adjustable.

[0013] Furthermore, a lifting motor and a lead screw connected to the lifting motor are provided on one side of the second bearing platform, and a pressure sensor is provided at one end of the lead screw.

[0014] Furthermore, the inner side of the gripper is provided with a gripping pin.

[0015] Furthermore, the transport RGV trolley includes a traveling mechanism, a vehicle frame, and a workpiece fixing frame.

[0016] Furthermore, the transfer platform is equipped with an anti-collision mechanism to prevent the transport RGV trolley from colliding with other vehicles.

[0017] Furthermore, the transfer platform is equipped with positioning magnetic strips for positioning the RGV trolley.

[0018] A method of using a conveying and transfer device, wherein the conveying and transfer device is as described above; comprising the following steps: a conveying RGV trolley is used to move and transport workpieces, and stops at a target position after being accurately positioned by sensors; after the conveying RGV trolley stops at the target position, a lifting and adjusting device pulls the workpiece from the RGV trolley to a second bearing platform, a clamping device fixes and locks the workpiece, and the workpiece is turned from a horizontal to a vertical state, and the first bearing platform lowers the workpiece; a central control system manages the RGV trolley and the lifting and adjusting device.

[0019] The embodiments of the present invention have the following beneficial effects:

[0020] The equipment of this invention can transport workpieces to a designated position via a conveying RGV trolley. A lifting and adjusting device pulls the workpiece to the clamping device position. After the workpiece is clamped, it is lifted vertically. Once vertical, the workpiece is lowered by adjusting the lifting device. When the workpiece reaches the designated position, the clamping device is released, and the lifting and adjusting device returns to its original position. The entire process is controlled by a control system, greatly improving workload and operational accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a conveying and transfer device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the erection and transfer device in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 A three-dimensional image;

[0024] Figure 4 This is a perspective view of the transport RGV trolley and its track in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the erection state of a conveying and transfer device according to an embodiment of the present invention;

[0026] Figure 6 This is a perspective view showing the effect of a conveying and transfer device in an embodiment of the present invention. Detailed Implementation

[0027] The present application will be further described below with reference to the embodiments.

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, in the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Different embodiments can be substituted or combined, and for those skilled in the art, other implementation methods can be obtained based on these embodiments without creative effort.

[0029] Combined with appendix Figure 1-4 A conveying and transfer device, comprising:

[0030] RGV trolley 2 is used to transport workpieces;

[0031] The erection and posture adjustment device 3 includes a base 31, a first support platform 32, a second support platform 33, and an electric cylinder 36. The fixed end of the first support platform 32 is hinged to the erection end of the base 31. The lower part of the first support platform 32 is provided with a slide rail, and an erection block that slides on the slide rail and abuts against the bottom of the first support platform 32 is provided. The base 31 is provided with a fixed seat, and the fixed end of the electric cylinder 36 is fixed to the fixed seat. The telescopic end of the electric cylinder 36 is hinged to the erection block. The upper part of the first support platform 32 is provided with a lifting guide rail 34. The bottom of the second support platform 33 is provided with a lifting slider 35 that cooperates with the lifting guide rail 34. The second support platform 33 is provided with a clamping device.

[0032] The overall control system (not shown in the figure) is connected to the conveying RGV trolley 2 and the erection and attitude adjustment device 3 via signal connection.

[0033] The transfer platform 1 is provided with a rail 23 for the transport RGV trolley 2 to transport the goods; the base 31 of the erection and adjustment device 3 is fixed on the transfer platform 1, and the erection end of the base 31 is located outside the transfer platform 1.

[0034] In some embodiments of the present invention, the clamping device includes clamping grippers 38 located on both sides of the upper surface of the second bearing platform 33, clamping guide rails 312 are provided on both sides of the upper surface of the second bearing platform 33, and clamping sliders that cooperate with the clamping guide rails 312 are provided at the lower part of the clamping grippers 38.

[0035] In some embodiments of the present invention, the second bearing platform 33 is provided with a rigid chain 310.

[0036] In some embodiments of the invention, the height of the base 31 is adjustable. In some embodiments, it is supported by 16 pre-embedded bolts 39 for connection to the ground.

[0037] In some embodiments of the present invention, a lifting motor 314 and a lead screw 315 connected to the lifting motor 314 are provided on one side of the second bearing platform 33, and a pressure sensor 316 (located between the lead screw 315 and the lead screw nut 317) is provided at one end of the lead screw 315.

[0038] In some embodiments of the present invention, the inner side of the gripper 38 is provided with a gripping pin 311.

[0039] In some embodiments of the present invention, the transport RGV trolley 2 includes a traveling mechanism 21, a vehicle frame, and a workpiece fixing frame 22.

[0040] In some embodiments of the present invention, the transfer platform 1 is provided with an anti-collision mechanism 25, which is used to prevent the transport RGV trolley 2 from colliding.

[0041] In some embodiments of the present invention, the transfer platform is provided with a positioning magnetic strip 24 for positioning the RGV trolley 2.

[0042] In some embodiments, a vertical limiting block is provided at the hinge joint between the first support platform 32 and the base 31, and a horizontal limiting block 318 is provided above the mounting base that can abut against the first support platform 32.

[0043] A method for using a conveying and transfer device, wherein the conveying and transfer device is as described above, includes the following steps: a conveying RGV trolley 2 is used to move and transport workpieces, and stops at a target position after being accurately positioned by sensors; after the conveying RGV trolley 2 stops at the target position, a lifting and adjusting device 3 pulls the workpiece from the RGV trolley onto a second bearing platform 33, a clamping device fixes and locks the workpiece, and the workpiece is rotated from a horizontal to a vertical state, and the first bearing platform 32 lowers the workpiece; a central control system manages the RGV trolley and the lifting and adjusting device 3. This completes the automated conveying and inspection task.

[0044] Each component of the system should have sufficient strength and rigidity, and the mechanical motion mechanism should operate smoothly and respond quickly and accurately.

[0045] The RGV trolley mainly consists of a walking mechanism 21, a trolley frame, and a workpiece fixing frame 22.

[0046] The walking mechanism 21 mainly consists of a chassis, wheel components, drive components, etc. The walking mechanism adopts a set of motor reducers to drive the axle, and the axle drives the two wheels to move along the guide rail. The other two wheels are driven wheels.

[0047] First, a rigid chain pulls the workpiece from the RGV trolley onto the erecting device, ensuring a positioning accuracy of 0.5mm. Then, a clamping motor drives a lead screw to clamp the workpiece using a clamping fixture. After fixing, a secondary electric cylinder pushes the workpiece from a horizontal to a vertical position. Finally, a lifting motor places the workpiece onto the inspection table via a lead screw, and the clamping jaws release. After the workpiece inspection is completed, the erecting device reverses its operation.

[0048] The erection device is connected to the ground by pre-embedded bolts, and each bolt position is adjustable to ensure that it is level with the RGV trolley, thus meeting the requirements for convenient workpiece handling.

[0049] The tilting accuracy of the erection device is controlled by the precision of the electric cylinder. The electric cylinder's precision can be guaranteed to be within ±0.1mm. The distance from the hinge point of the electric cylinder's telescopic rod to the rotation center is 500mm, which translates to an angular precision of...

[0050] θ= 0.023°

[0051] The lifting accuracy of the erection device is controlled by a trapezoidal screw driven by a motor reducer. The descent into position is detected by a pressure sensor. When the pressure sensor indicates a significant decrease in load, it means that the workpiece is installed in place. The pressure sensor has a detection accuracy of 10 kg.

[0052] The conveying and transfer equipment transports the workpiece to the turntable clamping fixture, which is clamped and fixed using a purely mechanical structure. First, the workpiece is positioned by two locating pins (cylindrical pins + diamond pins), with a positioning gap within 0.1mm, ensuring that each workpiece will not get stuck with the base and clamping device.

[0053] The clamping fixture 4 consists of a mounting base, a pressure block, a locking block, a torsion spring, and a pin.

[0054] Before the workpiece is placed, the clamping fixture is in a loose state. As the workpiece moves down, the pressure block and locking block rotate counterclockwise. When the workpiece is in place, the pressure block tightens and the locking block locks.

[0055] When removing the workpiece, the gripper first presses up the locking block, then the gripper clamps the workpiece, and the pressing block is returned to the loose state by the torsion spring.

[0056] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveying and transfer device, characterized in that, include: RGV trolleys are used to transport workpieces; An erection and posture adjustment device includes a base, a first support platform, a second support platform, and an electric cylinder. The fixed end of the first support platform is hinged to the erection end of the base. A slide rail is provided at the bottom of the first support platform, and an erection block that slides on the slide rail and abuts against the bottom of the first support platform is mounted on the slide rail. A fixed seat is provided on the base, and the fixed end of the electric cylinder is fixed to the fixed seat. The telescopic end of the electric cylinder is hinged to the erection block. A lifting guide rail is provided at the top of the first support platform. A lifting slider that cooperates with the lifting guide rail is provided at the bottom of the second support platform. A clamping device is provided on the second support platform. The overall control system is connected to the conveying RGV trolley and the erection and attitude adjustment device via signals. A transfer platform is provided with rails for the transport RGV trolley; the base of the erection and adjustment device is fixed on the transfer platform, and the erection end of the base is located outside the transfer platform. The second load-bearing platform is equipped with a rigid chain; The clamping device includes clamping grippers located on both sides of the upper surface of the second bearing platform; The second bearing platform is provided with a lifting motor and a lead screw connected to the lifting motor on one side, and a pressure sensor is provided at one end of the lead screw; The gripper has a gripping pin on its inner side.

2. The conveying and transfer equipment according to claim 1, characterized in that, The upper surface of the second bearing platform is provided with clamping guide rails on both sides, and the lower part of the clamping gripper is provided with a clamping slider that cooperates with the clamping guide rails.

3. The conveying and transfer equipment according to claim 1, characterized in that, The height of the base is adjustable.

4. The conveying and transfer equipment according to claim 1, characterized in that, The aforementioned RGV transport trolley includes a traveling mechanism, a vehicle frame, and a workpiece fixing frame.

5. The conveying and transfer equipment according to claim 1, characterized in that, The transfer platform is equipped with an anti-collision mechanism to prevent the transport RGV trolley from colliding with other vehicles.

6. The conveying and transfer equipment according to claim 1, characterized in that, The transfer platform is equipped with positioning magnetic strips for positioning the RGV trolley.

7. A method of using a conveying and transfer device, characterized in that, The conveying and transfer equipment described herein is the conveying and transfer equipment according to any one of claims 1-6; it includes the following steps: a conveying RGV trolley is used to move and transport the workpiece, and stops at the target position after being accurately positioned by a sensor; after the conveying RGV trolley stops at the target position, the workpiece is pulled from the RGV trolley to the second bearing platform by the erection and adjustment device, the clamping device fixes and locks the workpiece, and the workpiece is turned from horizontal to vertical, and the first bearing platform lowers the workpiece; the overall control system performs system management of the RGV trolley and the erection and adjustment device.

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