Feeding and discharging equipment and testing system
By designing highly compatible loading and unloading equipment and testing systems, the challenges of multi-model, small-batch order production have been solved, achieving automated compatibility and efficient testing, and reducing production costs and time losses.
Patent Information
- Application Number
- CN202423247063.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Most existing loading and unloading equipment is only suitable for a single workpiece or product type, which is difficult to meet the needs of multi-model, small-batch order production, resulting in increased production costs and time loss.
A loading and unloading device was designed, equipped with a conveyor, a material transfer mechanism, and an identification component. It can identify and transfer the coordinates and serial numbers of different products. Combined with the suction cup assembly of the robotic arm and the object sensing sensor, it can realize automated loading and unloading operations compatible with different products. The testing system is equipped with multiple testing platforms and contact sensors to realize unordered random testing.
It enables automated loading and unloading of different products, reducing production costs and time losses, improving testing efficiency, reducing the risk of material damage, and shortening the testing cycle.
Smart Images

Figure CN223878985U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of production and manufacturing, and in particular, to a feeding and discharging device and a testing system. BACKGROUND
[0002] The feeding and discharging device is used to realize automatic feeding and discharging of workpieces, and is widely applied to various occasions requiring automatic feeding and discharging, such as product processing, product testing, material handling, packaging and sorting, etc. However, the feeding and discharging devices in the prior art are mostly suitable for only a single type of workpiece or product, and mainly meet the needs of mass production. When facing the order production mode of multiple models and small batches, the equipment needs to be modified or customized for specific product models, which not only greatly increases the production cost, but also wastes a large amount of available production time. SUMMARY
[0003] Therefore, the present application provides a feeding and discharging device and a testing system, which can be compatible with different products at the same time, so as to meet the production needs of the order production mode of multiple models and small batches.
[0004] In a first aspect, the present application provides a feeding and discharging device, comprising:
[0005] a cabinet body, provided with a feeding port at a first end thereof along a first horizontal direction and a discharging port at a second end thereof along the first horizontal direction;
[0006] a conveyor, provided in the cabinet body and located at a first end of the cabinet body along a second horizontal direction, the conveyor being used to convey materials from the feeding port to the discharging port;
[0007] a material transfer mechanism, provided in the cabinet body and located at a second end of the conveyor along the second horizontal direction, the material transfer mechanism being used to transfer materials between a material taking position and a material receiving position, and between the material receiving position and a material discharging position, wherein the material taking position and the material discharging position are located on the conveyor belt, and the material discharging position is located downstream of the material taking position;
[0008] an identification assembly, provided in the cabinet body and located at a feeding end of the conveyor belt, the identification assembly being used to identify parameters of materials located at an identification position and send the parameters to an upper computer, wherein the parameters include coordinates of the materials along the first horizontal direction, the identification position is located on the conveyor belt and upstream of the material taking position, and the coordinates along the first horizontal direction are used to control the conveyor by the upper computer to convey the materials to the material taking position.
[0009] Optionally, the parameters further include a product serial number, and the identification assembly comprises:
[0010] an industrial camera disposed above the feeding end of the conveying belt, configured to identify the coordinate of the material in the first horizontal direction and the product serial number when the material is located at the identification position.
[0011] Optionally, the parameter comprises a material height, and the identification component further comprises:
[0012] a position sensor configured to measure the height of the material located at the detection position, wherein the detection position is located on the conveying belt and upstream of the identification position; and
[0013] the industrial camera is configured to move in a vertical direction, and the height of the material is used to control the industrial camera to move in the vertical direction by the host computer so that the distance between the industrial camera and the top surface of the material is a fixed value when the material is located at the identification position.
[0014] Optionally, the material transfer mechanism is a robot, the gripper of the robot comprises N suction disc groups, each of the suction disc groups is independently controlled by the host computer, and two of the N suction disc groups are used to perform the gripping task, and N≥2.
[0015] Optionally, the N suction disc groups are arranged at intervals in the first horizontal direction, and each suction disc group comprises two or more suction discs arranged at intervals in the second horizontal direction.
[0016] Optionally, the gripper is further provided with an object sensing sensor, the object sensing sensor is connected to the host computer, and the host computer controls the material transfer mechanism to act in the case that the object sensing sensor senses that there is material on the gripper and the vacuum degree value of the two suction disc groups used to perform the current gripping task meets a preset threshold.
[0017] In a second aspect, the present application provides a testing system, comprising:
[0018] a host computer;
[0019] The feeding and discharging device according to any one of the first aspect of the present application, wherein a first opening is arranged at a second end of the cabinet of the feeding and discharging device in a second horizontal direction.
[0020] a testing cabinet arranged at the second end of the cabinet of the feeding and discharging device in the second horizontal direction, wherein the testing cabinet comprises M testing platforms in a vertical direction, each of the testing platforms comprises a product positioning table, and the product positioning table is movable between a receiving position and a testing position in the second horizontal direction, wherein the receiving position is located in the cabinet of the feeding and discharging device, and the testing position is located in the testing cabinet, and M≥1.
[0021] Optionally, in the case of M≥2, the receiving positions of the material positioning table are arranged in a stepped manner from top to bottom.
[0022] Optionally, the product positioning table is provided with at least two contact sensors; and in the case that all the contact sensors are triggered, the upper computer controls the product positioning table to move from the receiving position to the testing position.
[0023] From the above technical solutions, the feeding and discharging equipment provided by the present application can simultaneously accommodate different products, thereby coping with the production needs of multi-model small-batch order production form; the testing system provided by the present application can automatically adapt to the testing needs of different materials without manual intervention or additional preparation work such as switching tooling and equipment debugging, realizing disordered and random testing between different materials, reducing the testing cycle by 75%, and greatly improving the testing efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 FIG. 1 is a schematic view of a feeding and discharging equipment based on an exemplary embodiment of the present application.
[0025] Figure 2 FIG. 2 is a partial schematic view of the feeding and discharging equipment based on an exemplary embodiment of the present application.
[0026] Figure 3 FIG. 3 is a schematic view of a clamping jaw based on an exemplary embodiment of the present application.
[0027] Figure 4 FIG. 4 is a schematic view of a testing system based on an exemplary embodiment of the present application.
[0028] Figure 5 FIG. 5 is a schematic view of a testing cabinet based on an exemplary embodiment of the present application.
[0029] LIST OF REFERENCE NUMBERS
[0030] 10: feeding and discharging equipment;
[0031] 11: cabinet body;
[0032] 111: feeding port;
[0033] 112: discharging port;
[0034] 113: first opening;
[0035] 114: second opening;
[0036] 12: conveyor;
[0037] 121: conveying belt;
[0038] 13: material transfer mechanism;
[0039] 131: gripper;
[0040] 1311: suction cup group;
[0041] 13111: suction cup;
[0042] 132: object sensing sensor;
[0043] 14: identification component;
[0044] 141: industrial camera;
[0045] 142: position sensor
[0046] 20: test cabinet;
[0047] 21: test platform;
[0048] 211: product positioning table;
[0049] 2111: positioning pin;
[0050] 2112: contact sensor;
[0051] 22: third opening;
[0052] 30: electrical cabinet;
[0053] 40: material;
[0054] 51: detection position;
[0055] 52: identification position;
[0056] 53: material taking position;
[0057] 54: material placing position;
[0058] 91: first horizontal direction;
[0059] 92: second horizontal direction;
[0060] 93: vertical direction; DETAILED DESCRIPTION
[0061] In order to make personnel in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all embodiments of the present application. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art should belong to the scope of protection of the embodiments of the present application.
[0062] In the present document, "illustrative" means "serving as an example, instance, or illustration" and should not necessarily be construed as preferred or advantageous over other solutions. Any diagram herein, is intended only to illustrate the architecture of the solution and should not necessarily be construed as preferred or advantageous over other solutions.
[0063] Some embodiments of the present application will be described in detail with reference to the drawings, in which the same reference numerals can indicate the same or similar components throughout the detailed description of the application. The following detailed description of the application is provided for the purposes of illustrating certain embodiments thereof and is not intended to limit the application, which is defined in the appended claims.
[0064] In order to have a clearer understanding of the technical features, objectives and effects of the present application, the specific embodiments of the present application will be described with reference to the drawings, in which the same reference numerals represent the same or similar components having the same function but different structures.
[0065] For the sake of simplicity, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product.
[0066] Embodiment 1
[0067] The feeding and discharging device is used to realize the automatic feeding and discharging operation of workpieces, and is widely used in various occasions requiring automatic feeding and discharging operation, such as product processing, product testing, material handling, packaging and sorting, etc. However, the feeding and discharging devices in the prior art are mostly only suitable for single workpiece or product type, mainly meeting the needs of mass production. When facing the order production mode of multiple models and small batch, it is often necessary to modify or customize the equipment according to the specific product model, which not only greatly increases the production cost, but also loses a lot of available production time.
[0068] Based on the various problems in the prior art described above, the feeding and discharging device 10 is provided in the embodiments of the present application.
[0069] The feeding and discharging device 10 provided in the embodiments of the present application will be described in detail below with reference to the drawings.
[0070] The feeding and discharging device 10 of the present embodiment comprises a cabinet 11, a conveyor 12, a material transfer mechanism 13 and an identification assembly 14. As shown in the drawings, Figure 1As shown, the first end of the cabinet 11 along the first horizontal direction 91 is provided with the feeding port 111, and the second end of the cabinet 11 along the first horizontal direction 91 is provided with the discharging port 112. The conveyor 12 is arranged in the cabinet 11 and located at the first end of the cabinet 11 along the second horizontal direction 92, and the conveyor 12 includes a conveyor belt 121, the feeding end of the conveyor belt 121 corresponds to the feeding port 111, and the discharging end of the conveyor belt 121 corresponds to the discharging port 112. The conveyor 12 is used to convey the material from the feeding port 111 to the discharging port 112, so as to realize seamless connection of the conveyor belt of the upstream equipment, the conveyor belt 121 of the feeding and discharging equipment 10 and the conveyor belt of the downstream equipment, so that the material can be smoothly transferred between different equipment. The material transfer mechanism 13 is arranged in the cabinet 11 and located at the second end of the conveyor 12 along the second horizontal direction 92. The material transfer mechanism 13 is used to transfer the material between the taking position 53 and the receiving position, and between the receiving position and the discharging position 54, wherein the taking position 53 and the discharging position 54 are located on the conveyor belt 121, and the discharging position 54 is located downstream of the taking position 53, as shown. Figure 2 The identification component 14 is arranged in the cabinet 11 and located at the feeding end of the conveyor belt 121. The identification component 14 is used to identify the parameters of the material located at the identification position 52 and send them to the upper computer, wherein the parameters of the material include the coordinates of the material along the first horizontal direction 91, and the identification position 52 is located on the conveyor belt 121 and upstream of the taking position 53. The upper computer controls the conveyor 12 to convey the material to the taking position 53 based on the coordinates of the material along the first horizontal direction 91.
[0071] In this embodiment, the receiving position can be located in the cabinet 11 or outside the cabinet 11.
[0072] For example, in an embodiment, the conveyor 12 conveys the material from the feeding port 111 to the discharging port 112 along the first horizontal direction 91, but is not limited thereto.
[0073] In some embodiments, the parameters further include a product serial number, and the identification component 14 includes an industrial camera 141 arranged directly above the feeding end of the conveyor belt, which can identify the coordinates of the material along the first horizontal direction 91 and the product serial number of the material located at the identification position 52.
[0074] In the multi-model and small batch order production mode, different specifications and models of materials often need to be processed at the same station on the production line. In order to solve this problem, in the embodiment, the product serial number can be quickly identified by the industrial camera 141, and the serial number is usually a unique combination of characters or numbers, which is used to uniquely identify each product. By reading the serial number, the system can immediately access the database associated with it to obtain the detailed information of the material, such as specifications, models, current processing steps, test requirements, etc. Once these information is obtained, the system can control the material transfer mechanism 13 to automatically transfer the material to its corresponding station, thereby realizing the automatic feeding and unloading of different specifications of products.
[0075] In some embodiments, the parameters of the material include the height of the material, and the identification assembly 14 further includes a position sensor 142 located on one side upstream of the industrial camera 141, as shown in Figure 2 The position sensor 142 is used to measure the height of the material located at the detection position 51, where the detection position 51 is located on the conveying belt 121 and upstream of the identification position 52; the industrial camera 141 is configured to move in the vertical direction 93. The position sensor 142 sends the detected height of the material to the host computer, and the host computer adjusts the height of the industrial camera 141 according to the height information, so that the distance between the industrial camera 141 and the top surface of the material is a fixed value when the material is located at the identification position 52. This fixed value ensures that the industrial camera 141 can capture the product serial number on the material at the best angle and clarity.
[0076] In the embodiment, the feeding and unloading device 10 not only can handle materials of different heights, but also can ensure that high-quality images are obtained in any case, thereby improving the accuracy and efficiency of product serial number identification and coordinate identification.
[0077] In some embodiments, the material transfer mechanism 13 is a mechanical hand, and the gripper 131 of the mechanical hand includes at least two suction cup groups 1311, so that the suction cup group 1311 matched with the shape, size and weight of the material can be used to ensure the stability and accuracy during clamping. Each of the suction cup groups 1311 is independently controlled by the host computer, and each clamping task is performed by two suction cup groups 1311, so that when one of the suction cup groups 1311 fails or cannot work normally, the other suction cup group 1311 can still suck the material, avoiding the falling and possible damage of the material.
[0078] For example, in the exemplary embodiment shown in Figure 3 The gripper 131 includes three suction cup groups 1311, of which the suction cup group 1311-1 and the suction cup group 1311-2 are used to grasp small materials, and the suction cup group 1311-1 and the suction cup group 1311-3 are used to grasp large materials.
[0079] In some embodiments, the N groups of suction cups 131 are arranged at intervals along the first horizontal direction 91; and each group of suction cups 131 includes two or more suction cups 13111 arranged at intervals along the second horizontal direction 92, as shown. Figure 3
[0080] In some embodiments, the gripper 131 is further provided with an object sensing sensor 132 connected to the upper computer. The object sensing sensor 132 can monitor the presence of materials on the gripper 131 in real time and transmit the detected information to the upper computer in real time, ensuring that the transfer operation is only performed when materials are present, avoiding misoperation or missed operation. The vacuum generator is connected to the group of suction cups, and the vacuum degree value is transmitted to the upper computer in real time. The upper computer can determine the current adsorption state of the materials by determining whether the current vacuum degree value of the group of suction cups 1311 meets the preset threshold. In the case where the object sensing sensor 132 senses the presence of materials on the gripper 131 and the vacuum degree value of the two groups of suction cups 1311 used to perform the current gripping task meets the preset threshold, the upper computer controls the material transfer mechanism 13 to act to transfer the materials; otherwise, the upper computer controls the material transfer mechanism 13 to stop acting and issues an alarm.
[0081] In some embodiments, the object sensing sensor 132 is a capacitive touch sensor, but is not limited thereto.
[0082] In this embodiment, by configuring the object sensing sensor 132 on the gripper 131 and real-time monitoring whether the vacuum degree value of the group of suction cups 1311 meets the preset threshold, the material transfer mechanism 13 can realize reliable material transfer operation, greatly reducing the risk of material damage during transfer.
[0083] Embodiment 2
[0084] Embodiment 2 provides a test system, which includes an upper computer, a test cabinet 20, and the feeding and discharging equipment 10 of embodiment 1. As shown in Figure 4 The test cabinet 20 is arranged at the second end of the feeding and discharging equipment 10 along the second horizontal direction 92, and the second end of the cabinet body 11 of the feeding and discharging equipment 10 along the second horizontal direction 92 is provided with a first opening 113 for communication with the test cabinet 20. As shown in Figure 5 As shown, the test cabinet 20 includes at least one test platform 21 in the vertical direction 93. Each test platform 21 includes a product positioning table 211, which is movable along the second horizontal direction 92 between a receiving position and a test position. The receiving position is located inside the cabinet 11 of the loading / unloading equipment 10, and the test position is located inside the test cabinet 20. The product positioning table 211 is compatible with various materials that need to be tested, eliminating the need for tooling and fixture switching, thus achieving zero changeover and zero switching.
[0085] In one embodiment, when M≥2, the receiving positions of the material positioning platform are arranged in a stepped manner from top to bottom. Figure 5 In the exemplary embodiment shown, two test cabinets 20 are placed side by side along a first horizontal direction 91. Each test cabinet 20 has two test platforms 21 in the vertical direction 93. Each product positioning platform 211 in the figure is located at a receiving position. The receiving position of the lower material positioning platform is offset relative to the receiving position of the upper material positioning platform in a second horizontal direction 92, so that each material positioning platform located at the receiving position has an unobstructed path, so that the material transfer mechanism 13 can place materials onto each product positioning platform 211 more easily and accurately. Figure 5 As shown.
[0086] The test cabinet 20 has multiple test platforms 21 in the vertical direction 93, which enables the simultaneous parallel testing of multiple test platforms 21, thereby greatly improving the testing efficiency.
[0087] In some embodiments, the product positioning stage 211 is equipped with at least two contact sensors 2112. These sensors are capable of detecting whether the material is accurately placed. When the material is correctly placed on the product positioning stage 211, it comes into contact with these sensors, thereby triggering them. If all the contact sensors 2112 are triggered, the host computer controls the product positioning stage 211 to move from the receiving position to the testing position.
[0088] like Figure 5 As shown, the product positioning platform 211 is equipped with two positioning pins 2111 that match the product's process holes. Two contact sensors 2112 are located inside these two positioning pins 2111 respectively. If the product is not placed correctly on the product positioning platform 211, such as if it is placed at an angle, at least one contact sensor 2112 will not be triggered, and the host computer will issue an alarm. If both sensors are triggered, it indicates that the material has been placed correctly, and the host computer controls the product positioning platform 211 to move from the receiving position to the testing position.
[0089] In some embodiments, the height of the test cabinet 20 is the same as that of the loading and unloading device 10, a third opening 22 is arranged on the top surface of the test cabinet 20, and a second opening 114 is arranged on the top surface of the loading and unloading device 10. The test cabinet 20 and the loading and unloading device 10 are conveniently connected with the electrical cabinet 30 through these openings, avoiding the occupation of side space and ground space. The size of the loading and unloading device 10 along the first horizontal direction 91 is an integer multiple of the size of the test cabinet 20 along the first horizontal direction 91, as shown in Figure 4 so that one loading and unloading device 10 can be docked with multiple test cabinets 20, improving test efficiency. Moreover, this size matching design also provides flexibility and scalability. If the production line needs to add more test cabinets 20 or loading and unloading devices 10, it can be simply expanded according to the integer multiple relationship, without the need for major modifications to the entire system. This helps to maintain the flexibility and adaptability of the production line to meet changing production needs.
[0090] The test system of the embodiment can automatically adapt to the test needs of different materials without manual intervention or additional preparation work such as switching tooling and equipment debugging, realizing disordered and random testing between different materials, reducing the test cycle by 75%, and greatly improving the test efficiency.
[0091] The nouns and pronouns related to persons in this patent application are not limited to a specific gender.
[0092] It should be understood that although the present specification is described in terms of various embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
[0093] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present application, and are not intended to limit the protection scope of the present application. Equivalent embodiments or changes made without departing from the spirit of the present application, such as combinations, divisions or repetitions of features, should be included in the protection scope of the present application.
[0094] The above has been described and explained in detail through the drawings and preferred embodiments, but the present application is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art can know that more embodiments of the present application can be obtained by combining the code review means in the above different embodiments, and these embodiments are also within the protection scope of the present application.
Claims
1. A loading and unloading apparatus (10), characterized in that, The application relates to a material conveying device, comprising: a cabinet (11) provided with an upper feeding port (111) at a first end along a first horizontal direction (91) and a lower discharging port (112) at a second end along the first horizontal direction (91); a conveyor (12) arranged in the cabinet (11) and located at a first end of the cabinet (11) along a second horizontal direction (92), the conveyor (12) being used for conveying materials from the upper feeding port (111) to the lower discharging port (112); a material transfer mechanism (13) arranged in the cabinet (11) and located at a second end of the conveyor (12) along the second horizontal direction (92), the material transfer mechanism (13) being used for transferring materials between a material taking position (53) and a receiving position and between the receiving position and a material discharging position (54), wherein the material taking position (53) and the material discharging position (54) are located on a conveying belt (121) and the material discharging position (54) is located downstream of the material taking position (53); an identification assembly (14) arranged in the cabinet (11) and located at a feeding end of the conveying belt (121), the identification assembly (14) being used for identifying parameters of materials located at an identification position (52) and sending the parameters to an upper computer, wherein the parameters include coordinates of the materials along the first horizontal direction (91), the identification position (52) is located on the conveying belt (121) and upstream of the material taking position (53), and the coordinates of the first horizontal direction (91) are used for enabling the upper computer to control the conveyor (12) to convey the materials to the material taking position (53).
2. The loading and unloading apparatus (10) according to claim 1, characterized in that, The parameters further include product serial numbers, and the identification assembly (14) comprises: an industrial camera (141) arranged directly above the feeding end of the conveying belt (121) and used for identifying the coordinates of the materials along the first horizontal direction (91) and the product serial numbers of the materials located at the identification position (52).
3. The loading and unloading apparatus (10) according to claim 2, characterized in that, The parameters include material heights, and the identification assembly (14) further comprises: a position sensor (142) used for measuring the heights of materials located at a detection position (51), wherein the detection position (51) is located on the conveying belt (121) and upstream of the identification position (52); and the industrial camera (141) is configured to move along a vertical direction (93), and the heights of the materials are used for enabling the upper computer to control the industrial camera (141) to move along the vertical direction (93) so that the distance between the industrial camera (141) and the top surface of the materials is a fixed value when the materials are located at the identification position (52).
4. The loading and unloading apparatus (10) according to any one of claims 1 to 3, characterized in that The material transfer mechanism (13) is a mechanical hand, the clamping jaw (131) of the mechanical hand comprises N suction disc groups (1311), each of the suction disc groups (1311) is independently controlled by the upper computer, two of the N suction disc groups (1311) are used for performing a clamping task, and N is greater than or equal to 2.
5. The loading and unloading apparatus (10) according to claim 4, characterized in that, The N suction cup groups (1311) are arranged at intervals along the first horizontal direction (91); and each suction cup group (1311) comprises two or more suction cups (13111) arranged at intervals along the second horizontal direction (92).
6. The loading and unloading apparatus (10) according to claim 5, characterized in that, The gripper (131) is further provided with an object sensing sensor (132) connected to the upper computer; and when the object sensing sensor (132) senses that there is material on the gripper (131) and the vacuum degree values of the two suction cup groups (1311) used to perform the current gripping task meet the preset threshold, the upper computer controls the material transfer mechanism (13) to act.
7. A test system, characterized by Comprise: An upper computer; The feeding and discharging equipment (10) according to any one of claims 1-6, wherein a first opening (113) is arranged at a second end of the cabinet (11) of the feeding and discharging equipment (10) along a second horizontal direction (92); A test cabinet (20) is arranged at the second end of the feeding and discharging equipment (10) along the second horizontal direction (92); the test cabinet (20) comprises M test platforms (21) in a vertical direction (93), each test platform (21) comprises a product positioning table (211), and the product positioning table (211) is movable between a receiving position and a test position along the second horizontal direction (92), wherein the receiving position is located in the cabinet (11) of the feeding and discharging equipment (10), and the test position is located in the test cabinet (20), and M≥1.
8. The test system of claim 7, wherein, When M≥2, the receiving positions of the product positioning tables (211) are arranged in a stepped manner from top to bottom.
9. The test system of claim 8, wherein, The product positioning table (211) is provided with at least two contact sensors (2112); and when all the contact sensors (2112) are triggered, the upper computer controls the product positioning table (211) to move from the receiving position to the test position.