Workpiece handling mechanism and handling system

Abstract

This utility model relates to the field of workpiece transportation and inspection technology, and discloses a workpiece handling mechanism and system. The mechanism includes a frame and a lifting assembly mounted on the frame. The lifting assembly adsorbs workpieces through multiple adsorption units. The telescopic end of the lifting assembly is connected to the adsorption units. The adsorption units adsorb the workpieces and move vertically under the drive of the lifting assembly. The adsorption units are equipped with a detection unit that moves synchronously with the adsorption units. The detection unit detects the number of workpieces adsorbed by the adsorption units during the workpiece lifting process. This solution, by setting the detection unit parallel to the adsorption units and moving synchronously with the adsorption units in the vertical direction, and detecting the number of workpieces during the upward movement of the lifting assembly after the adsorption units have grasped the workpieces, makes full use of the time of the workpiece's upward movement, replacing the horizontal movement detection process. Therefore, it can reduce the subsequent horizontal movement range of the workpieces and improve the detection and movement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of workpiece transportation and inspection technology, and in particular to a workpiece handling mechanism and handling system. Background Technology

[0002] Stacked workpieces require material preparation through processes such as sorting and moving during production transfer. During the sorting process, the workpieces grabbed may be stacked in several pieces. Workpieces in this stacked state do not meet the material requirements and need to be removed. How to detect workpieces during the sorting process and determine whether workpieces are stacked is an important problem to be solved in the workpiece handling system.

[0003] Chinese Patent CN201911324597.4 provides a workpiece conveying system and a workpiece conveying detection device. The workpiece conveying system (100) conveys sheet-shaped workpieces to downstream processes and is configured to include: a workpiece conveyor (110) that holds and lifts the uppermost workpiece (W) of a stack (102) by means of a workpiece holding unit (114) and conveys the uppermost workpiece (W) of the stack (102) to downstream processes one by one; and a workpiece number detection device (122) that detects the number of workpieces (W) held by the workpiece holding unit (114) at a detection timing when the workpiece (W) held and raised by the workpiece holding unit (114) according to the normal workpiece conveying action performed by the workpiece conveyor (110) reaches the upper limit position where the moving speed component in its upward direction becomes 0. In this scheme, the workpiece inspection is performed after the workpiece is lifted to a horizontal position by the workpiece holding unit. The number of workpieces is then detected during the horizontal movement of the workpiece. This inspection method requires a relatively long horizontal conveying section to allow sufficient time for workpiece inspection and to transfer the waste material after inspection to the waste collection point.

[0004] This invention overcomes the shortcomings of the prior art by providing a workpiece handling mechanism and system that can perform detection during the workpiece picking and moving process. Utility Model Content

[0005] The main purpose of this utility model is to provide a workpiece handling mechanism, including a frame and a lifting assembly disposed on the frame. The lifting assembly adsorbs the workpiece through multiple adsorption units. The telescopic end of the lifting assembly is connected to the adsorption units. The adsorption units adsorb the workpiece and move it vertically under the action of the lifting assembly.

[0006] The adsorption unit is equipped with a detection unit, which moves synchronously with the adsorption unit and detects the number of workpieces adsorbed by the adsorption unit during the workpiece lifting and lowering process.

[0007] Optionally, the lifting assembly includes a mounting frame, a first motor, a sliding plate, and a telescopic shaft;

[0008] The mounting bracket is connected to the frame, the first motor is mounted on the mounting bracket, the slide plate is connected to the first motor in a transmission manner, and the first motor drives the slide plate to move in the vertical direction;

[0009] The telescopic shaft is fixedly connected to the slide plate, and the telescopic shaft moves synchronously with the slide plate. The length of the telescopic shaft is greater than the length of the slide plate, and the end of the telescopic shaft is connected to the adsorption unit.

[0010] Optionally, the mounting frame is connected to a second motor via a lead screw. The second motor is mounted on the frame, the lead screw is horizontally oriented, and the second motor drives the mounting frame to move horizontally.

[0011] Optionally, the mounting bracket is equipped with a position sensor located at the starting point of the skateboard's movement range.

[0012] Optionally, the telescopic bushing is equipped with a buffer spring.

[0013] Optionally, the telescopic shaft passes through the mounting bracket, which has a through hole for the end of the telescopic shaft to pass through. A guide cylinder is provided on the lower side of the through hole, and the end of the telescopic shaft passes through the guide cylinder and is fixedly connected to the adsorption unit.

[0014] Optionally, the mounting frame is equipped with two sets of first motors, two sets of sliding plates, and two sets of telescopic shafts. The two mounting frames are mounted on the same frame, and the number of frames is 4.

[0015] Optionally, the adsorption unit is a magnetic adsorption structure or a vacuum adsorption structure.

[0016] Optionally, the detection unit is connected to the adsorption unit via a bracket, and the detection surface of the detection unit and the adsorption surface of the adsorption unit are on the same plane.

[0017] This utility model also provides a workpiece handling system, including the workpiece handling mechanism described above, and further including a material picking center, a double material removal center, a pushing mechanism, and a tapping mechanism. The workpiece handling mechanism is located above the material picking center, where workpieces are stacked and overlapped. The moving range of the pushing mechanism covers the material picking center, the double material removal center, and the tapping mechanism. The material picking center, the double material removal center, and the tapping mechanism are arranged sequentially along the moving range of the pushing mechanism. The double material removal center is used to accommodate waste material, and the tapping mechanism is used for workpiece centering.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The workpiece handling mechanism provided by this utility model, by setting the detection unit and the adsorption unit in parallel, and the detection unit moving synchronously with the adsorption unit in the vertical direction, detects the number of workpieces during the upward movement process of the lifting component after the adsorption unit grabs the workpiece. This makes full use of the time of the workpiece's upward movement process, replacing the detection process of horizontal movement, thus reducing the subsequent horizontal movement range of the workpiece and improving detection and movement efficiency. Attached Figure Description

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1 This is a schematic diagram of an embodiment of the workpiece handling mechanism of this utility model;

[0022] Figure 2 This is a partial schematic diagram of embodiment A of the workpiece handling mechanism of this utility model;

[0023] Figure 3 This is a partial schematic diagram of embodiment B of the workpiece handling mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of multiple adsorption unit combinations in an embodiment of the workpiece handling mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of an embodiment of the first workpiece handling system of this utility model;

[0026] Figure 6 This is a side view of an embodiment of the first workpiece handling system of this utility model;

[0027] Figure 7 This is a schematic diagram of a second embodiment of the workpiece handling system of this utility model;

[0028] Figure 8 This is a side view of an embodiment of the second workpiece handling system of this utility model.

[0029] Figure label:

[0030] 10-Workpiece handling mechanism; 11-Frame; 111-Lead screw; 112-Second motor; 12-Lifting assembly; 121-Mounting bracket; 1211-Position sensor; 122-First motor; 123-Slide plate; 124-Telescopic shaft; 125-Buffer spring; 126-Guide cylinder; 13-Adsorption unit; 14-Detection unit; 141-Bracket; 20-Material handling center; 30-Dual material rejection center; 40-Pushing mechanism; 50-Slapping mechanism; 60-Crossbeam; 70-Translation mechanism. Detailed Implementation

[0031] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0032] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] like Figure 1-4 The diagram shown is a schematic representation of an embodiment of the workpiece handling mechanism provided by this utility model.

[0035] Please refer to Figure 1-4This embodiment is mainly used for workpiece adsorption and vertical transport, as well as for detecting the number of workpieces during vertical transport. The embodiment includes a frame 11 and a lifting assembly 12 mounted on the frame 11. The lifting assembly 12 adsorbs workpieces through multiple adsorption units 13. The telescopic end of the lifting assembly 12 is connected to the adsorption units 13, and the adsorption units 13, adsorbing workpieces, move vertically under the action of the lifting assembly 12. Each adsorption unit 13 is equipped with a detection unit 14, which moves synchronously with the adsorption unit 13 and detects the number of workpieces adsorbed by the adsorption unit during the workpiece lifting process.

[0036] The workpiece handling mechanism adsorbs and transfers the topmost workpiece from a stack of workpieces. This process separates the stacked workpieces into individual pieces for subsequent production processing. However, multiple workpieces may be adsorbed during the adsorption process, necessitating a count of the workpiece quantity after adsorption. Existing technology involves moving the workpiece vertically to a horizontal conveyor belt and then detecting the workpiece quantity during this horizontal movement. This method requires a relatively long horizontal movement interval to provide sufficient time for detection and double-material rejection. This embodiment of the invention integrates the detection unit 14 and the adsorption unit 13, allowing for simultaneous workpiece quantity detection during vertical movement. This fully utilizes the space and time available during the vertical movement, thus shortening the horizontal movement interval and improving both detection and workpiece handling efficiency.

[0037] In one embodiment, the lifting assembly 12 includes a mounting frame 121, a first motor 122, a sliding plate 123, and a telescopic shaft 124. The mounting frame 121 is connected to the frame 11. The first motor 122 is mounted on the mounting frame 121. The sliding plate 123 is driven by the first motor 122, which drives the sliding plate 123 to move vertically. The telescopic shaft 124 is fixedly connected to the sliding plate 123 and moves synchronously with it. The length of the telescopic shaft 124 is greater than the length of the sliding plate 123, and the end of the telescopic shaft 124 is connected to an adsorption unit 13.

[0038] The first motor 122 is specifically a linear motor. The first motor 122 drives the slide plate 123 to reciprocate in a vertical direction, which in turn drives the telescopic shaft 124 connected to the slide plate 123 to move in a vertical direction. The length of the telescopic shaft 124 is greater than the length of the slide plate 123. Therefore, the telescopic shaft 124 can extend beyond the range of the slide plate 123 and the length range of the mounting frame 121, thereby expanding the range of movement and avoiding interference between the slide plate 123 and the mounting frame 121 when the slide plate 123 moves.

[0039] In one embodiment, the mounting frame 121 is connected to a second motor 112 via a lead screw 111. The second motor 112 is mounted on the frame 11, and the lead screw 111 is horizontally oriented. The second motor 112 drives the mounting frame 121 to move horizontally. The connecting portion of the mounting frame 121 has a thread that matches the lead screw 111. By rotating the lead screw 111 via the second motor 112, the mounting frame 121 moves along the direction of the lead screw 111. Since the lead screw 111 is horizontally oriented, the position of the mounting frame 121 can be adjusted in the horizontal direction, allowing for adjustment of the adsorption position according to the size of the workpiece.

[0040] Furthermore, the mounting bracket 121 is equipped with a position sensor 1211, which is located at the starting point of the sliding plate movement range. Specifically, the position sensor 1211 is a proximity switch, used to detect whether the workpiece has moved to the correct position.

[0041] Furthermore, the telescopic shaft 124 is fitted with a buffer spring 125. The buffer spring 125 buffers the force on the telescopic shaft 124 during its movement.

[0042] In one embodiment, the telescopic shaft 124 passes through the mounting bracket 121, which has a through hole for the end of the telescopic shaft 124 to pass through. A guide cylinder 126 is provided below the through hole, and the end of the telescopic shaft 124 passes through the guide cylinder 126 and is fixedly connected to the adsorption unit 13. The guide cylinder 126 supports and guides the telescopic shaft 124, maintaining a force balance at both ends of the telescopic shaft 124.

[0043] In one embodiment, such as Figure 4 As shown, the mounting frame 121 is equipped with two sets of first motors 122, two sets of sliding plates 123, and two sets of telescopic shafts 124. The two mounting frames 121 are located on the same frame 11, and the number of frames 11 is 4. The 4 frames 11 are arranged in parallel. The more adsorption units 13 there are, the more balanced the force on the workpiece and the more accurate the detection data.

[0044] In one embodiment, the adsorption unit 13 is a magnetic adsorption structure or a vacuum adsorption structure. The magnetic adsorption unit 13 can be used to adsorb workpieces made of metallic iron, while the vacuum adsorption unit 13 can be used to adsorb workpieces made of non-metallic iron.

[0045] In one embodiment, the detection unit 14 is connected to the adsorption unit 13 via a bracket 141. The detection surface of the detection unit 14 and the adsorption surface of the adsorption unit 13 are on the same plane, avoiding interference between the detection unit 14 and the workpiece, while effectively detecting the number of workpieces. Specifically, the detection unit 14 can be an eddy current sensor.

[0046] like Figure 5-6 As shown, this utility model provides a first embodiment of a workpiece handling system.

[0047] Please refer to Figure 5-6 This embodiment includes the workpiece transport mechanism 10 described above, and also includes a material picking center 20, a double material rejection center 30, a pushing mechanism 40, and a tapping mechanism 50. The workpiece transport mechanism 10 is located above the material picking center 20, which is used to stack overlapping workpieces. The workpiece transport mechanism 10 picks up workpieces at the material picking center 20 and moves them to the starting position of the pushing mechanism 50.

[0048] The pushing mechanism 50's operating range covers the picking center 20, the double material removal center 30, and the tapping mechanism 50, which are sequentially arranged along the operating range of the pushing mechanism 40. The double material removal center 30 is used to accommodate waste material. Workpieces are counted as they move from the picking center 20 to the pushing mechanism 50; if workpieces are stacked, they are transferred to the double material removal center 30 via the pushing mechanism 50. The tapping mechanism 50 is used for workpiece centering to facilitate further processing.

[0049] like Figure 7-8 As shown, this utility model provides a second embodiment of a workpiece handling system.

[0050] Please refer to Figure 7-8 This embodiment includes the workpiece transport mechanism 10 described above, and also includes a crossbeam 60 and a translation mechanism 70. The workpiece transport mechanism 10 and the translation mechanism 70 are disposed on the crossbeam 60, and the workpiece transport mechanism 10 is translated along the crossbeam 60 through the translation mechanism 10.

[0051] In summary, the workpiece handling mechanism embodiment provided by this utility model, by arranging the detection unit and the adsorption unit in parallel, and having the detection unit move synchronously with the adsorption unit in the vertical direction, detects the number of workpieces during the upward movement of the lifting component after the adsorption unit grabs the workpiece. This makes full use of the time of the workpiece's upward movement, replacing the detection process of horizontal movement, thus reducing the subsequent horizontal movement range of the workpiece and improving detection and movement efficiency.

[0052] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A workpiece handling mechanism, characterized in that, The device includes a frame and a lifting assembly mounted on the frame. The lifting assembly adsorbs workpieces through multiple adsorption units. The telescopic end of the lifting assembly is connected to the adsorption units. The adsorption units adsorb the workpieces and move them vertically under the action of the lifting assembly. The adsorption unit is equipped with a detection unit, which moves synchronously with the adsorption unit and detects the number of workpieces adsorbed by the adsorption unit during the workpiece lifting and lowering process.

2. The workpiece handling mechanism of claim 1, wherein The lifting assembly includes a mounting frame, a first motor, a sliding plate, and a telescopic shaft; The mounting bracket is connected to the frame, the first motor is mounted on the mounting bracket, the slide plate is connected to the first motor in a transmission manner, and the first motor drives the slide plate to move in the vertical direction; The telescopic shaft is fixedly connected to the slide plate, and the telescopic shaft moves synchronously with the slide plate. The length of the telescopic shaft is greater than the length of the slide plate, and the end of the telescopic shaft is connected to the adsorption unit.

3. The workpiece handling mechanism of claim 2, wherein, The mounting frame is connected to a second motor via a lead screw. The second motor is located on the frame, and the lead screw is arranged in a horizontal direction. The second motor drives the mounting frame to move in the horizontal direction.

4. The workpiece handling mechanism of claim 2, wherein The mounting bracket is equipped with a position sensor, which is located at the starting point of the skateboard's movement range.

5. The workpiece handling mechanism of claim 2, wherein The telescopic shaft sleeve is equipped with a buffer spring.

6. The workpiece handling mechanism of claim 2, wherein The telescopic shaft passes through the mounting bracket, which has a through hole for the end of the telescopic shaft to pass through. A guide cylinder is provided below the through hole, and the end of the telescopic shaft passes through the guide cylinder and is fixedly connected to the adsorption unit.

7. The workpiece handling mechanism of claim 2, wherein The mounting frame is equipped with two sets of first motors, two sets of sliding plates and two sets of telescopic shafts. The two mounting frames are mounted on the same frame, and the number of frames is 4.

8. The workpiece handling mechanism of claim 1, wherein The adsorption unit is a magnetic adsorption structure or a vacuum adsorption structure.

9. The workpiece handling mechanism according to claim 1, characterized in that, The detection unit is connected to the adsorption unit via a bracket, and the detection surface of the detection unit and the adsorption surface of the adsorption unit are on the same plane.

10. A workpiece handling system characterized by, The workpiece handling mechanism includes the workpiece handling mechanism as described in any one of claims 1-9, and further includes a material picking center, a double material removal center, a pushing mechanism, and a tapping mechanism. The workpiece handling mechanism is located above the material picking center, where workpieces are stacked and overlapped. The active range of the pushing mechanism covers the material picking center, the double material removal center, and the tapping mechanism. The material picking center, the double material removal center, and the tapping mechanism are arranged sequentially along the active range of the pushing mechanism. The double material removal center is used to accommodate waste material, and the tapping mechanism is used for workpiece centering.

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