Weighing sensor testing equipment

Abstract

The utility model discloses weighing sensor testing equipment, which relates to the technical field of testing equipment and is technically characterized by comprising two supporting plates, the upper side walls of the two supporting plates are fixedly connected with a top plate, the top plate is fixedly connected with a hydraulic cylinder which is vertically and downwards arranged, and the hydraulic cylinder penetrates through the side wall of the top plate. The technical effects are that a plurality of weighing sensors can be tested at the same time, the same weighing sensor is subjected to multiple weight tests, the accuracy of test data is further improved, the driving routes of normal weighing sensors and weighing sensors which do not pass the test can be changed, and the test efficiency is improved. When the weight needs to be adjusted or replaced in the later period, the weight can be separated, the next process can be normally carried out, the problem can be corrected and reprocessed, and the weight can be adjusted or replaced more quickly and conveniently in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of testing equipment, in particular to weighing sensor testing equipment. Background Art

[0002] A load cell is a device that converts mass signals into measurable electrical output signals. Before a load cell leaves the factory, its measurement accuracy must be considered. This is particularly important for ensuring that the load cell meets standards. It affects the sensor's proper function, safety, and measurement accuracy. Therefore, performance testing is often required during the production process of load cells.

[0003] In the existing scheme, when testing the weighing sensor, most of the time the workers place a single sensor on the test bench. After the test is completed, the tested sensor is taken down and a new sensor to be tested is placed on it. This will reduce the workers' work speed. If you want to increase the accuracy of the test, you need to replace the weights of different weights during the test of a single sensor, which undoubtedly increases the workers' workload and further reduces the work speed. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present invention provides a weighing sensor testing device that can detect multiple weighing sensors at a time and perform multiple tests on the sensors.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a weighing sensor testing device, comprising two support plates, the upper side walls of the two support plates are fixedly connected to a top plate, the top plate is fixedly connected to a hydraulic cylinder arranged vertically downward, the hydraulic cylinder passes through the side walls of the top plate, the telescopic end of the top plate is fixedly connected to a connecting plate, a plurality of connecting rods are slidably connected to the connecting plate, the upper ends of the plurality of connecting rods are fixedly connected to a limiting plate, the lower ends of the plurality of connecting rods are provided with weights, a clamping structure is provided on the top plate, a conveying structure is provided between the two support plates, a plurality of sensor placement plates are provided on the conveying structure, and the positions of the plurality of sensor placement plates are adapted to the positions of the plurality of weights.

[0008] Preferably: the clamping structure includes two fixed plates, the two fixed plates are fixedly connected to the bottom side walls of the top plate, the two top plates are rotatably connected with reciprocating screws, the reciprocating screws are threadedly connected with threaded plates, the side walls between the two fixed plates are fixedly connected with a limiting rod, the limiting rod passes through the side walls of the threaded plates, and a mechanical gripper is fixedly connected to the bottom side walls of the threaded plates, a servo motor is fixedly connected to the side walls of one of the fixed plates, and the output end of the servo motor passes through the side walls of the fixed plate and is fixedly connected to one end of the reciprocating screw.

[0009] Preferably, the upper side wall of the weight is fixedly connected with a mounting tube, the inner side wall surface of the mounting tube is arranged in a threaded shape, and the bottom outer side wall surfaces of the plurality of connecting rods are arranged in a threaded shape.

[0010] Preferably, the weights of the plurality of weights increase sequentially from left to right.

[0011] Preferably, a control panel is fixedly connected to the side wall of the support plate, and the servo motor and the mechanical gripper are both electrically connected to the control panel.

[0012] Preferably, a plurality of sensor placement plates are each provided with a card slot.

[0013] Preferably: the transmission structure is provided with a connector, and the connector is provided with multiple connection ports

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the present invention provides a weighing sensor testing device with the following beneficial effects:

[0016] 1. By setting up multiple weights that can slide up and down on the connecting plate, multiple weighing sensors can be tested at the same time. The multiple weights use different weights and apply different pressures to the surface of the weighing sensor, which improves the detection effect. By setting up the transmission structure, multiple weighing sensors can be moved and tested with different weights in turn. In this way, the same weighing sensor can undergo multiple weight tests, further improving the accuracy of the test data.

[0017] 2. By setting a clamping structure on the top plate, the load cells that fail the test or have problems can be clamped by a mechanical gripper. The clamped load cells can be removed from the conveying structure under the cooperation of the servo motor, reciprocating screw and threaded plate. The driving routes of the normal load cells and the load cells that have not passed the test can be changed, so that the two can be separated and enter the next process normally. The ones with problems can be corrected and reprocessed.

[0018] 3. By installing the cylinder on the weight and setting a thread at the bottom of the connecting rod, the installation cylinder can be connected and disassembled from the connecting rod, making it faster and more convenient to adjust or replace the weight later.

[0019] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the test cross-sectional structure in the present utility model;

[0023] Figure 3 It is a schematic diagram of a partial three-dimensional structure of the present utility model;

[0024] Figure 4 It is a schematic diagram of a partially enlarged structure in the present utility model.

[0025] In the figure: 1. Conveying structure; 2. Support plate; 3. Top plate; 4. Hydraulic cylinder; 5. Connecting plate; 6. Connecting rod; 7. Limiting plate; 8. Weight; 9. Sensor placement plate; 10. Fixing plate; 11. Reciprocating screw; 12. Limiting rod; 13. Threaded plate; 14. Mechanical gripper; 15. Servo motor; 16. Control panel; 17. Mounting cylinder; 18. Connector. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1:

[0030] Please combine Figures 1 to 4As shown, the utility model provides a weighing sensor testing device, including two support plates 2, the upper side walls of the two support plates 2 are fixedly connected to a top plate 3, the top plate 3 is fixedly connected to a hydraulic cylinder 4 arranged vertically downward, the hydraulic cylinder 4 passes through the side wall of the top plate 3, the telescopic end of the top plate 3 is fixedly connected to a connecting plate 5, a plurality of connecting rods 6 are slidably connected to the connecting plate 5, the upper ends of the plurality of connecting rods 6 are fixedly connected to a limit plate 7, the lower ends of the plurality of connecting rods 6 are provided with weights 8, the weights of the plurality of weights 8 increase from left to right, and weights 8 of different weights are applied to the weighing The weight of the sensor is different, so the displayed data is also different. This is to improve the accuracy of the test. A clamping structure is provided on the top plate 3. The setting of the clamping structure is to take out the weighing sensor that fails the test or has objections. A transmission structure 1 is provided between the two support plates 2. A plurality of sensor placement plates 9 are provided on the transmission structure 1. The positions of the plurality of sensor placement plates 9 are adapted to the positions of the plurality of weights 8. When in use, the weighing sensors are placed on the sensor placement plates 9 below the connecting plate 5 in sequence, and the hydraulic cylinder 4 is started. The hydraulic cylinder 4 The telescopic end moves up or down with the connecting plate 5, so that multiple weights 8 are placed on the upper side wall of the sensor at the same time, and then pressure is applied to the surface of the weighing sensor. The test is performed according to the size of the applied pressure and the value transmitted by the weighing sensor. After the first round of detection, the conveying structure 1 is started, and the conveying structure 1 moves with the weighing sensor. The same sensor can be tested multiple times. After the test, the weighing sensor is transported to the next step without the worker taking it down, which can also improve the accuracy of the test. On the other side, the worker only needs to put the weighing sensors waiting to be tested on it one by one. The connecting line on the weighing sensor (the connecting line is relatively long and can move with the transmission belt and be manually operated) is connected to the connector 18, and the signal sensed by the weighing sensor is transmitted to the connector 18 through the connecting line. The connector 18 transmits the signal to the external display instrument by wired or wireless means, so that it can be observed that the pressure sensed by the weighing sensor is large. The sensor placement plate is provided with a slot, and the bottom end of the weighing sensor is stuck in it, which has a limit on the weighing sensor to prevent it from offset during the test.

[0031] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working method, which is described below for details.

[0032] Example 2:

[0033] The clamping structure includes two fixed plates 10, which are fixedly connected to the bottom side walls of the top plate 3. A reciprocating screw 11 is rotatably connected to the two top plates 3, and a threaded plate 13 is threadedly connected to the reciprocating screw 11. A limit rod 12 is fixedly connected to the side wall between the two fixed plates 10, and the limit rod 12 passes through the side wall of the threaded plate 13. A mechanical gripper 14 is fixedly connected to the bottom side wall of the threaded plate 13. A servo motor 15 is fixedly connected to the side wall of one of the fixed plates 10, and the output end of the servo motor 15 passes through the fixed plate 10. The side wall of the plate 10 is fixedly connected to one end of the reciprocating screw 11. When a problem is found in the weighing sensor, the servo motor 15 is started, and the output end of the servo motor 15 rotates clockwise and counterclockwise, causing the reciprocating screw 11 to rotate forward and reverse, thereby driving the threaded plate 13 to reciprocate. When it runs under the problematic weighing sensor, the mechanical gripper 14 is started again, and the weighing sensor is clamped by the mechanical gripper 14 and grabbed onto a special object to avoid mixing normal sensors with problematic sensors.

[0034] The upper side wall of the weight 8 is fixedly connected to a mounting tube 17, the inner side wall surface of the mounting tube 17 is threaded, and the bottom outer side wall surface of multiple connecting rods 6 is threaded. When there is a problem with the weight or other test weights need to be replaced, the mounting tube 17 can be separated from or connected to the connecting rod 6 by rotating the mounting tube 17 clockwise and counterclockwise, so that the weight 8 can be replaced.

[0035] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A weighing sensor testing device, comprising two support plates (2), characterized in that: The upper side walls of the two support plates (2) are fixedly connected with a top plate (3), and a hydraulic cylinder (4) arranged vertically downward is fixedly connected to the top plate (3), and the hydraulic cylinder (4) passes through the side wall of the top plate (3). The telescopic end of the top plate (3) is fixedly connected with a connecting plate (5), and a plurality of connecting rods (6) are slidably connected to the connecting plate (5), and the upper ends of the plurality of connecting rods (6) are fixedly connected to a limiting plate (7), and the lower ends of the plurality of connecting rods (6) are provided with weights (8). A clamping structure is provided on the top plate (3), and a conveying structure (1) is provided between the two support plates (2). A plurality of sensor placement plates (9) are provided on the conveying structure (1), and the positions of the plurality of sensor placement plates (9) are adapted to the positions of the plurality of weights (8).

2. The weighing sensor testing device according to claim 1, characterized in that: The clamping structure comprises two fixed plates (10), the two fixed plates (10) are fixedly connected to the bottom side walls of the top plate (3), the two top plates (3) are rotatably connected with reciprocating screws (11), the reciprocating screws (11) are threadedly connected with a threaded plate (13), a limiting rod (12) is fixedly connected to the side walls between the two fixed plates (10), the limiting rod (12) passes through the side walls of the threaded plates (13), a mechanical gripper (14) is fixedly connected to the bottom side walls of the threaded plates (13), a servo motor (15) is fixedly connected to the side wall of one of the fixed plates (10), the output end of the servo motor (15) passes through the side wall of the fixed plate (10) and is fixedly connected to one end of the reciprocating screw (11).

3. The weighing sensor testing device according to claim 2, characterized in that: The upper side wall of the weight (8) is fixedly connected with a mounting tube (17), the inner side wall surface of the mounting tube (17) is arranged in a threaded shape, and the bottom outer side wall surfaces of the plurality of connecting rods (6) are arranged in a threaded shape.

4. The weighing sensor testing device according to claim 3, characterized in that: The weights of the plurality of weights (8) increase sequentially from left to right.

5. The weighing sensor testing device according to claim 4, characterized in that: A control panel (16) is fixedly connected to the side wall of the support plate (2), and the servo motor (15) and the mechanical gripper (14) are both electrically connected to the control panel (16).

6. The weighing sensor testing device according to claim 5, characterized in that: A plurality of sensor placement plates (9) are each provided with a card slot.

7. The weighing sensor testing device according to claim 5, characterized in that: The transmission structure (1) is provided with a connector (18), and the connector (18) is provided with a plurality of connection ports.

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