Electromagnetic drawing force testing equipment

Abstract

The utility model discloses electromagnetic drawing force testing equipment, which is characterized in that a control host is embedded in one side of a workbench, a display is embedded in one side of the front surface of a mounting back plate, a program-controlled direct-current power supply is mounted at one corner of the top of the workbench, and a mounting base is fixedly connected to the middle of one end of the workbench; a servo motor is fixedly installed at one end of the top of the installation base, and a torque sensor is connected to the position, corresponding to the top of the installation base, of one end of an output shaft of the servo motor. Through the adjustable structural design of the mounting hole plate, the installation and adjustment of the electromagnetic valve in the detection process are more convenient, and through the cooperation between the servo motor and the torque sensor, the displacement of the electromagnetic valve can be more accurately regulated, so that the detection convenience and the detection precision of the test equipment are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solenoid valve testing equipment, and particularly relates to an electromagnetic drawing force testing equipment. Background Technique

[0002] A solenoid valve is an industrial device controlled by electricity magnetism. It is a basic automation component used to control fluids and belongs to an actuator. It is not limited to hydraulic and pneumatic applications. It is used in industrial control systems to adjust the direction, flow rate, speed and other parameters of the medium. The solenoid valve can cooperate with different circuits to achieve the expected control, and the control accuracy and flexibility can be guaranteed. During the detection of the solenoid valve, corresponding testing equipment is required;

[0003] However, at present, during the detection of the solenoid valve by the testing equipment, due to the lack of corresponding auxiliary structures, the testing displacement method of the solenoid valve is manual screw drive and digital display altimeter control, and the accuracy and consistency of the displacement deviate greatly, thereby reducing the use convenience and accuracy of the testing equipment. Content of the Utility Model

[0004] The utility model provides an electromagnetic drawing force testing equipment, which can effectively solve the problem that at present, during the detection of the solenoid valve by the testing equipment, due to the lack of corresponding auxiliary structures, the testing displacement method of the solenoid valve is manual screw drive and digital display altimeter control, and the accuracy and consistency of the displacement deviate greatly, thereby reducing the use convenience and accuracy of the testing equipment.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: an electromagnetic drawing force testing equipment, including a workbench, a control host is embedded and installed inside one side of the workbench, a mounting backboard is fixedly connected to one side of the top of the workbench, a display is embedded and installed on one side of the front of the mounting backboard, and a programmed DC power supply is installed at one corner of the top of the workbench;

[0006] An adjustable mounting and detecting mechanism is arranged in the middle of the top surface of the workbench;

[0007] The adjustable mounting and detecting mechanism includes a mounting base, a servo motor, a torque sensor, a connecting head, a mounting rectangular groove, a mounting sliding plate, a sliding square plate, a positioning small plate, a fixing bolt, a limiting square tube, a wire square rod, a mounting hole plate, a fixing threaded tube, an adjusting round seat and an adjusting threaded rod;

[0008] One end of the middle part of the workbench is fixedly connected with a mounting base, one end of the top of the mounting base is fixedly installed with a servo motor, one end of the output shaft of the servo motor is connected with a torque sensor corresponding to the top position of the mounting base, and one end of the connecting shaft on one side of the torque sensor is fixedly connected with a connecting head;

[0009] At a position corresponding to one side of the mounting base on the top of the workbench, a mounting rectangular groove is provided. In the middle of the inner bottom surface of the mounting rectangular groove, a mounting slide plate is fixedly connected. On the top surface of the mounting slide plate, a sliding square plate is slidably mounted through a chute block. In the middle of both ends of the sliding square plate, positioning small plates are fixedly connected. In the middle of the bottom surface of the positioning small plate, a fixing bolt is installed;

[0010] At the four corners of the top surface of the sliding square plate, limiting square tubes are fixedly connected. Inside the limiting square tubes, wire square rods are slidably clamped at the top. The tops of the plurality of wire square rods are fixedly connected together to form a mounting hole plate. In the middle of the top end of the sliding square plate, a fixing threaded tube is fixedly connected. In the middle of the top end of the mounting hole plate, an adjusting round seat is rotatably installed. Inside the adjusting round seat, an adjusting threaded rod is installed.

[0011] Preferably, the servo motor is powered by a control host. The bottom surface and the top surface of the mounting slide plate are in close sliding fit. The fixing bolt and the guide groove in the middle of the top surface of the mounting slide plate are mutually compatible;

[0012] The outer side of the wire square rod and the inner wall of the limiting square tube are in close sliding fit. The top surface of the adjusting threaded rod is located below the top surface of the mounting hole plate.

[0013] Preferably, a circulating collection and cleaning mechanism is provided at one side of the workbench;

[0014] The circulating collection and cleaning mechanism includes a collection side tube, a collection cross tube, a collection fan, a processing end box, a collection square box, a filtering fine mesh and an exhaust bottom groove;

[0015] At the positions corresponding to the two corners inside the mounting rectangular groove on the top of the workbench, collection side tubes are fixedly embedded and installed. At the end positions of the two collection side tubes, a collection cross tube is fixedly connected. In the middle of the bottom end of the collection cross tube, a collection fan is fixedly connected through a pipeline. The collection fan is powered by an external power source. In the middle of the bottom end of the collection fan, a processing end box is fixedly connected through a pipeline. Inside the processing end box, a collection square box is movably clamped at one side in the middle. A filtering fine mesh is embedded and installed at the inner bottom of the collection square box. An exhaust bottom groove is penetrated and opened at one side of the bottom of the processing end box.

[0016] Preferably, the end of the collection side tube and the inner wall of the mounting rectangular groove are in close fit. The outer side and the inner wall of the processing end box are in close fit.

[0017] Preferably, an auxiliary placement mechanism is provided on one side of the mounting back plate;

[0018] The auxiliary placement mechanism includes a mounting small plate, a placement bottom box, a mounting magnetic plate, an adsorption magnetic sheet and a limiting small column;

[0019] A mounting small plate is fixedly connected to the position on the side of the mounting backplane corresponding to the side of the display. A placement bottom box is fixedly installed at the bottom position on one side of the mounting small plate. A mounting magnetic plate is embedded and installed at the position corresponding to the top of the placement bottom box on one side of the mounting small plate. An adsorption magnetic sheet is magnetically adsorbed on one side of the mounting magnetic plate. A limiting small column is fixedly connected to the middle of one side of the adsorption magnetic sheet.

[0020] Preferably, the side surface of the mounting magnetic plate is flush with the mounting small plate, and the side surface of the adsorption magnetic sheet is in close sliding fit with the side surface of the mounting magnetic plate.

[0021] Compared with the prior art, the beneficial effects of the present utility model are as follows: The structure of the present utility model is scientific and reasonable, and it is safe and convenient to use:

[0022] 1. An adjustable installation and detection mechanism is provided. After loosening the fixing bolts, the positioning small plate is adjusted along the top of the sliding square plate to adjust the distance between the solenoid valve and the servo motor. Then, the adjusting screw rod is twisted by a wrench to drive the adjusting round seat to rotate synchronously. During the rotation of the adjusting screw rod, the adjusting round seat and the mounting hole plate are driven to lift synchronously through the cooperation of the fixed threaded pipe, realizing the adjustment of the height of the mounting hole plate. The solenoid valve is installed on the top of the mounting hole plate through bolts, and the control shaft of the solenoid valve is connected to the connecting head. Then, the servo motor is started to cooperate with the torque sensor to detect the solenoid valve. The torque sensor records the force values of the solenoid valve spool at different positions. The adjustable structure design of the mounting hole plate makes the installation and adjustment of the solenoid valve more convenient during the detection process. The cooperation between the servo motor and the torque sensor can more accurately control the displacement of the solenoid valve, thereby effectively improving the detection convenience and detection accuracy of the testing equipment.

[0023] 2. A circulating collection and cleaning mechanism is provided. The collection fan can suck the air flow inside the collection side pipe and the collection cross pipe. First, the dust and debris inside the mounting rectangular groove are collected through the collection side pipe, and then the collected dust and debris together with the air flow are introduced into the processing end box through the collection cross pipe. Then, through the mutual cooperation between the collection square box and the filter fine mesh, the dust and debris in the mixed air flow flowing through the inside of the processing end box are collected, and the air flow inside the processing end box is discharged through the exhaust bottom groove, thereby effectively improving the cleanliness inside the testing equipment and the convenience of cleaning the testing equipment.

[0024] 3. An auxiliary placement mechanism is provided. The components connected thereto are installed on one side of the mounting backplane through the mounting small plate. After placing the tool inside the placement bottom box, the adsorption magnetic sheet is magnetically adsorbed on one side of the mounting magnetic plate through magnetism, and the side surface of the auxiliary tool is limited by the limiting small column, making the placement position of the auxiliary tool more convenient to access, thereby effectively expanding the functions of the testing equipment and improving the use convenience of the testing equipment. Brief Description of the Drawings

[0025] The drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0026] In the drawings:

[0027] Figure 1 is a schematic structural view of the present utility model;

[0028] Figure 2 is a schematic structural view of the adjustable installation and detection mechanism of the present utility model;

[0029] Figure 3 is a schematic structural view of the installation of the fixed threaded pipe of the present utility model;

[0030] Figure 4 is a schematic structural view of the circulating collection and cleaning mechanism of the present utility model;

[0031] Figure 5 is a schematic structural view of the auxiliary placement mechanism of the present utility model;

[0032] The reference numerals in the drawings: 1, workbench; 2, control host; 3, installation backboard; 4, display; 5, programmable DC power supply;

[0033] 6, adjustable installation and detection mechanism; 601, installation base; 602, servo motor; 603, torque sensor; 604, connector; 605, installation rectangular groove; 606, installation slide plate; 607, sliding square plate; 608, positioning small plate; 609, fixing bolt; 610, limiting square pipe; 611, wire square rod; 612, installation hole plate; 613, fixed threaded pipe; 614, adjusting round seat; 615, adjusting threaded rod;

[0034] 7, circulating collection and cleaning mechanism; 701, collection side pipe; 702, collection cross pipe; 703, collection fan; 704, processing end box; 705, collection square box; 706, filter fine mesh; 707, exhaust bottom groove;

[0035] 8, auxiliary placement mechanism; 801, installation small plate; 802, placement bottom box; 803, installation magnetic plate; 804, adsorption magnetic sheet; 805, limiting small column. Detailed Embodiments

[0036] The following is a description of the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present utility model and are not used to limit the present utility model.

[0037] Embodiment: As Figures 1-5As shown in the figure, the present utility model provides a technical solution, an electromagnetic drawing force testing device, which includes a workbench 1. Inside one side of the workbench 1, a control host 2 is embedded and installed. On one side of the top of the workbench 1, an installation backboard 3 is fixedly connected. On one side of the front of the installation backboard 3, a display 4 is embedded and installed. At one corner of the top of the workbench 1, a programmable DC power supply 5 is installed;

[0038] In the middle of the top surface of the workbench 1, an adjustable installation and detection mechanism 6 is provided;

[0039] The adjustable installation and detection mechanism 6 includes an installation base 601, a servo motor 602, a torque sensor 603, a connection head 604, an installation rectangular groove 605, an installation slide plate 606, a sliding square plate 607, a positioning small plate 608, a fixing bolt 609, a limiting square tube 610, a wire square rod 611, an installation hole plate 612, a fixing threaded tube 613, an adjusting round seat 614, and an adjusting threaded rod 615;

[0040] At the middle of one end of the workbench 1, an installation base 601 is fixedly connected. At one end of the top of the installation base 601, a servo motor 602 is fixedly installed. At the position corresponding to the top of the installation base 601 at one end of the output shaft of the servo motor 602, a torque sensor 603 is connected. At the end of the connecting shaft on one side of the torque sensor 603, a connection head 604 is fixedly connected;

[0041] At the position corresponding to one side of the installation base 601 on the top of the workbench 1, an installation rectangular groove 605 is opened. In the middle of the inner bottom surface of the installation rectangular groove 605, an installation slide plate 606 is fixedly connected. On the top surface of the installation slide plate 606, a sliding square plate 607 is slidably installed through a chute and a block. At the middle of both ends of the sliding square plate 607, a positioning small plate 608 is fixedly connected. At the middle of the bottom surface of the positioning small plate 608, a fixing bolt 609 is installed. The servo motor 602 is powered by the control host 2. Between the bottom surface and the top surface of the installation slide plate 606, there is a tight sliding fit. The fixing bolt 609 and the guide groove in the middle of the top surface of the installation slide plate 606 are mutually fitted;

[0042] At the four corners of the top surface of the sliding square plate 607, there are fixedly connected limit square tubes 610. Inside the limit square tubes 610, at the top, there is a sliding clamping connection with wire square rods 611. At the top of multiple wire square rods 611, there is a common fixed connection with a mounting hole plate 612. In the middle of the top end of the sliding square plate 607, there is a fixedly connected fixed threaded tube 613. In the middle of the top end of the mounting hole plate 612, there is a rotatably mounted adjusting round seat 614. Inside the adjusting round seat 614, there is an adjusting threaded rod 615. The outer side of the wire square rod 611 is in close sliding fit with the inner wall of the limit square tube 610. The top surface of the adjusting threaded rod 615 is below the top surface of the mounting hole plate 612. After loosening the fixing bolt 609, the positioning small plate 608 is adjusted along the top of the sliding square plate 607 to adjust the distance between the solenoid valve and the servo motor 602. Then, a wrench is used to twist the adjusting threaded rod 615 to drive the adjusting round seat 614 to rotate synchronously. During the rotation of the adjusting threaded rod 615, through the cooperation of the fixed threaded tube 613, the adjusting round seat 614 and the mounting hole plate 612 are driven to lift synchronously, realizing the adjustment of the height of the mounting hole plate 612. The solenoid valve is installed on the top of the mounting hole plate 612 through bolts, and the control shaft of the solenoid valve is connected to the connector 604. Then, the servo motor 602 is started to cooperate with the torque sensor 603 to detect the solenoid valve. The torque sensor 603 records the force values of the solenoid valve spool at different positions. Through the adjustable structure design of the mounting hole plate 612, the installation and adjustment of the solenoid valve are more convenient during the detection process. Through the cooperation between the servo motor 602 and the torque sensor 603, the displacement of the solenoid valve can be controlled more precisely, thereby effectively improving the detection convenience and detection accuracy of the testing equipment;

[0043] At one side position of the workbench 1, there is a circulating collection and cleaning mechanism 7;

[0044] The circulating collection and cleaning mechanism 7 includes a collection side tube 701, a collection cross tube 702, a collection fan 703, a processing end box 704, a collection square box 705, a filtering fine mesh 706, and an exhaust bottom groove 707;

[0045] At the corresponding positions of the two corners inside the rectangular groove 605 at the top of the workbench 1, there are fixedly embedded and installed collecting side pipes 701. At the end positions of the two collecting side pipes 701, there is fixedly connected a collecting cross pipe 702. In the middle of the bottom end of the collecting cross pipe 702, there is fixedly connected a collecting fan 703 through a pipe. The collecting fan 703 is powered by an external power supply. In the middle of the bottom end of the collecting fan 703, there is fixedly connected a processing end box 704 through a pipe. Inside the processing end box 704, there is a collecting square box 705 movably clamped in the middle of one side. Inside the bottom of the inner side of the collecting square box 705, there is embedded and installed a filtering fine mesh 706. At the bottom position of one side of the processing end box 704, there is a through exhaust bottom groove 707. Between the end of the collecting side pipe 701 and the inner wall of the installation rectangular groove 605, there is a tight fit. Between the outer side of the processing end box 704 and the inner wall of the processing end box 704, there is a tight fit. Through the collecting fan 703, the airflow inside the collecting side pipe 701 and the collecting cross pipe 702 can be sucked. First, the collecting side pipe 701 collects the dust debris inside the installation rectangular groove 605. Then, the collecting cross pipe 702 guides the collected dust debris and the airflow into the processing end box 704. Then, through the mutual cooperation between the collecting square box 705 and the filtering fine mesh 706, the dust debris in the mixed airflow flowing through the processing end box 704 is collected, and the airflow inside the processing end box 704 is discharged through the exhaust bottom groove 707. Thus, the cleanliness inside the testing equipment is effectively improved, and the convenience of cleaning the testing equipment is improved;

[0046] On one side of the installation back plate 3, there is an auxiliary placement mechanism 8;

[0047] The auxiliary placement mechanism 8 includes an installation small plate 801, a placement bottom box 802, an installation magnetic plate 803, an adsorption magnetic sheet 804, and a limit small column 805;

[0048] On the side of the installation back plate 3, corresponding to one side of the display 4, there is fixedly connected an installation small plate 801. At the bottom position of one side of the installation small plate 801, there is fixedly installed a placement bottom box 802. At the position corresponding to the top of the placement bottom box 802 on one side of the installation small plate 801, there is embedded and installed an installation magnetic plate 803. On one side of the installation magnetic plate 803, there is a magnetic adsorption of an adsorption magnetic sheet 804. In the middle of one side of the adsorption magnetic sheet 804, there is fixedly connected a limit small column 805. The side of the installation magnetic plate 803 is flush with the installation small plate 801. The side of the adsorption magnetic sheet 804 is in tight sliding fit with the side of the installation magnetic plate 803. Through the installation small plate 801, the components connected thereto are installed on one side of the installation back plate 3. After placing the tool inside the placement bottom box 802, the adsorption magnetic sheet 804 is magnetically adsorbed to one side of the installation magnetic plate 803, and the side of the auxiliary tool is limited by the limit small column 805, so that the placement position of the auxiliary tool is more convenient to access. Thus, the function of the testing equipment is effectively expanded, and the convenience of using the testing equipment is improved.

[0049] Working principle and usage process of the utility model: When the test equipment is needed to detect the solenoid valve, the components connected to the workbench 1 can be controlled through the control host 2, and then the electrical appliances on the test equipment can be controlled by the programmable DC power supply 5, and the detection data can be displayed in real time through the display 4;

[0050] When formally detecting the solenoid valve, after loosening the fixing bolt 609, adjust the positioning small plate 608 along the top of the sliding square plate 607 to adjust the distance between the solenoid valve and the servo motor 602. Then, twist the adjusting threaded rod 615 with a wrench to drive the adjusting round seat 614 to rotate synchronously, and during the rotation of the adjusting threaded rod 615, drive the adjusting round seat 614 and the mounting hole plate 612 to lift synchronously through the cooperation of the fixed threaded pipe 613, realizing the adjustment of the height of the mounting hole plate 612;

[0051] Install the solenoid valve on the top of the mounting hole plate 612 through bolts, and connect the control shaft of the solenoid valve with the connecting head 604. Then start the servo motor 602 to cooperate with the torque sensor 603 to detect the solenoid valve. The torque sensor 603 records the force values of the solenoid valve spool at different positions. The adjustable structure design of the mounting hole plate 612 makes the installation and adjustment of the solenoid valve more convenient during the detection process. And through the cooperation between the servo motor 602 and the torque sensor 603, the displacement of the solenoid valve can be controlled more accurately, thereby effectively improving the detection convenience and detection accuracy of the test equipment;

[0052] When it is necessary to clean the tabletop of the test equipment, the collecting fan 703 can suck the air flow inside the collecting side pipe 701 and the collecting cross pipe 702. First, collect the dust debris inside the installation rectangular groove 605 through the collecting side pipe 701, and then introduce the collected dust debris and air flow into the processing end box 704 through the collecting cross pipe 702. Then, through the mutual cooperation between the collecting square box 705 and the filtering fine mesh 706, collect the dust debris in the mixed air flow flowing through the inside of the processing end box 704, and discharge the air flow inside the processing end box 704 through the exhaust bottom groove 707, thereby effectively improving the cleanliness inside the test equipment and the convenience of cleaning the test equipment;

[0053] When it is necessary to place the tools during the detection process, install the components connected thereto on one side of the installation back plate 3 through the installation small plate 801. After placing the tools inside the placement bottom box 802, magnetically adsorb the adsorption magnetic sheet 804 to one side of the installation magnetic plate 803, and limit the side of the auxiliary tool through the limit small post 805, making the placement position of the auxiliary tool more convenient to access, thereby effectively expanding the functions of the test equipment and improving the usage convenience of the test equipment.

[0054] Finally, it should be noted that the above are only preferred examples of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An electromagnetic drawing force testing device, comprising a workbench (1), characterized in that: Inside one side of the workbench (1), a control host (2) is embedded and installed. On one side of the top of the workbench (1), a mounting backboard (3) is fixedly connected. On one side of the front of the mounting backboard (3), a display (4) is embedded and installed. At one corner of the top of the workbench (1), a programmable DC power supply (5) is installed; In the middle of the top surface of the workbench (1), an adjustable mounting and detecting mechanism (6) is provided; The adjustable mounting and detecting mechanism (6) includes a mounting base (601), a servo motor (602), a torque sensor (603), a connecting head (604), a mounting rectangular groove (605), a mounting slide plate (606), a sliding square plate (607), a positioning small plate (608), a fixing bolt (609), a limiting square tube (610), a wire square rod (611), a mounting hole plate (612), a fixing threaded tube (613), an adjusting round seat (614), and an adjusting threaded rod (615); In the middle of one end of the workbench (1), a mounting base (601) is fixedly connected. At one end of the top of the mounting base (601), a servo motor (602) is fixedly installed. At one end of the output shaft of the servo motor (602), a torque sensor (603) is connected corresponding to the top of the mounting base (601). At the end of the connecting shaft on one side of the torque sensor (603), a connecting head (604) is fixedly connected; At a position on the top of the workbench (1) corresponding to one side of the mounting base (601), a mounting rectangular groove (605) is opened. In the middle of the inner bottom surface of the mounting rectangular groove (605), a mounting slide plate (606) is fixedly connected. On the top surface of the mounting slide plate (606), a sliding square plate (607) is slidably installed through a chute and a slider. In the middle of both ends of the sliding square plate (607), a positioning small plate (608) is fixedly connected. In the middle of the bottom surface of the positioning small plate (608), a fixing bolt (609) is installed; At the four corners of the top surface of the sliding square plate (607), limiting square tubes (610) are fixedly connected. Inside the top of the limiting square tubes (610), wire square rods (611) are slidably clamped. The tops of the plurality of wire square rods (611) are fixedly connected together with a mounting hole plate (612). In the middle of the top end of the sliding square plate (607), a fixing threaded tube (613) is fixedly connected. In the middle of the top end of the mounting hole plate (612), an adjusting round seat (614) is rotatably installed. Inside the adjusting round seat (614), an adjusting threaded rod (615) is installed.

2. The electromagnetic drawing force testing device according to claim 1, wherein, The servo motor (602) is powered by the control host (2). Between the bottom surface and the top surface of the mounting slide plate (606), they are in close sliding fit. The fixing bolt (609) and the guide groove in the middle of the top surface of the mounting slide plate (606) are mutually fitted; Between the outer side of the wire square rod (611) and the inner wall of the limiting square tube (610), they are in close sliding fit. The top surface of the adjusting threaded rod (615) is below the top surface of the mounting hole plate (612).

3. The electromagnetic drawing force testing device according to claim 1, wherein At a position on one side of the workbench (1), a circulating collection and cleaning mechanism (7) is provided; The cyclic collection and cleaning mechanism (7) includes a collection side pipe (701), a collection cross pipe (702), a collection fan (703), a processing end box (704), a collection square box (705), a fine filter mesh (706), and an exhaust bottom groove (707); At the top of the workbench (1), the collection side pipes (701) are fixedly embedded at two corner positions corresponding to the inside of the rectangular groove (605). At the end positions of the two collection side pipes (701), the collection cross pipe (702) is fixedly connected. In the middle of the bottom end of the collection cross pipe (702), a collection fan (703) is fixedly connected through a pipe. The collection fan (703) is powered by an external power source. In the middle of the bottom end of the collection fan (703), a processing end box (704) is fixedly connected through a pipe. Inside the processing end box (704), a collection square box (705) is movably clamped in the middle of one side. Inside the bottom of the collection square box (705), a fine filter mesh (706) is embedded. At the bottom position of one side of the processing end box (704), an exhaust bottom groove (707) is penetrated and opened.

4. An electromagnetic drawing force testing device according to claim 3, characterized in that, Between the end of the collection side pipe (701) and the inner wall of the installation rectangular groove (605), there is a tight fit. Between the outer side of the processing end box (704) and the inner wall of the processing end box (704), there is a tight fit.

5. An electromagnetic drawing force testing device according to claim 1, wherein, On one side of the installation backboard (3), an auxiliary placement mechanism (8) is provided; The auxiliary placement mechanism (8) includes an installation small plate (801), a placement bottom box (802), an installation magnetic plate (803), an adsorption magnetic sheet (804), and a limit small post (805); On the side of the installation backboard (3), corresponding to one side of the display (4), an installation small plate (801) is fixedly connected. At the bottom position of one side of the installation small plate (801), a placement bottom box (802) is fixedly installed. Corresponding to the top position of the placement bottom box (802) on one side of the installation small plate (801), an installation magnetic plate (803) is embedded. On one side of the installation magnetic plate (803), an adsorption magnetic sheet (804) is magnetically adsorbed. In the middle of one side of the adsorption magnetic sheet (804), a limit small post (805) is fixedly connected.

6. The electromagnetic drawing force testing device according to claim 5, wherein The side surface of the installation magnetic plate (803) is flush with the installation small plate (801), and the side surface of the adsorption magnetic sheet (804) is in tight sliding fit with the side surface of the installation magnetic plate (803).

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