Adjustable linear motor winding coil clamping testboard

Abstract

The invention provides an adjustable linear motor winding coil clamping test bench, which comprises a bottom plate, slide rails and an electric cylinder which are installed on the bottom plate, a slide block which is slidably installed on the slide rails, and an adjusting assembly which is arranged on the slide block, a permanent magnet array is arranged between the two slide rails, and a winding coil is arranged above the permanent magnet array; the open framework design that the framework is sleeved outside the winding coil can be compatible with coils with different sizes; the two moving plates synchronously move oppositely / reversely by rotating the two-way lead screw to adapt to clamping of coils with different widths, stress balance is ensured, the handle lead screw is movably connected with the supporting block and is in threaded fit with the frame, the overall height of the frame is finely adjusted by rotating the handle, and adjustment of air gaps between the coils and the permanent magnet array is achieved.

Description

Technical Field

[0001] The present invention relates to an adjustable clamping test bench for the winding coil of a linear motor, and particularly to the field of motor testing. Background Art

[0002] As an electromagnetic device that directly converts electrical energy into linear motion, the linear motor has been widely used in the fields of industrial automation, semiconductor manufacturing, precision machine tools, etc. due to its advantages of high precision, high response speed, and maintenance-free. The winding coil, as the core component of the linear motor, directly affects the thrust, efficiency, and stability of the motor. However, in the research and development and production processes of linear motors, there are many challenges in the testing and optimization of winding coils:

[0003] Traditional testing devices are usually designed for winding coils of specific specifications and lack universality. The sizes and shapes of winding coils of different models of linear motors vary greatly, and it is difficult for existing test benches to be quickly adapted, resulting in low testing efficiency. When replacing test samples, the fixture needs to be frequently adjusted, seriously affecting the continuity of the testing process;

[0004] The performance of the linear motor is closely related to the air gap distance between the winding coil and the permanent magnet. Most existing testing equipment uses manual adjustment or simple mechanical positioning, making it difficult to achieve precise control of the air gap, and the adjustment process is prone to introducing human errors, affecting the reliability of the test data;

[0005] During the testing process, the winding coil needs to withstand electromagnetic force and mechanical vibration. Traditional clamping methods (such as bolt fixation or spring compression) are prone to causing coil deformation or displacement. Especially during high-speed and high-load testing, it may cause poor contact or measurement deviation.

[0006] Most test benches rely on manual operation, lack an integrated adjustment and testing system, cannot achieve automatic adjustment of the coil position and air gap distance, and are also difficult to be efficiently linked with performance testing equipment (such as thrust sensors and electrical parameter analyzers). Summary of the Invention

[0007] Object of the Invention: To propose an adjustable clamping test bench for the winding coil of a linear motor to solve the above problems existing in the prior art.

[0008] Technical Solution: An adjustable clamping test bench for the winding coil of a linear motor includes:

[0009] A bottom plate, a slide rail and an electric cylinder installed on the bottom plate, a slider slidably installed on the slide rail, and an adjustment component provided on the slider. A permanent magnet array is arranged between the two slide rails, and a winding coil is arranged above the permanent magnet array;

[0010] The adjusting component includes a frame sleeved outside the winding coil. Two moving plates abutting against the winding coil are symmetrically arranged inside the frame. Two bidirectional lead screws and optical rods are symmetrically installed on both sides of the frame. The two moving plates are respectively in threaded cooperation with the two ends of the bidirectional lead screw. Support blocks are further arranged on both sides of the frame. A sliding component and a handle lead screw are arranged between the support block and the frame. A bevel gear meshing with one end of the bidirectional lead screw is arranged on the frame, and a gear set is arranged between the two bevel gears.

[0011] In a further embodiment, the bidirectional lead screw is movably connected to the frame, the optical rod is fixedly connected to the frame, the bidirectional lead screw and the optical rod are arranged parallel to each other on the frame; the optical rod penetrates through the moving plate and is in clearance fit with the moving plate.

[0012] In a further embodiment, the support block is arranged parallel to the bidirectional lead screw. A plurality of screw holes are further arranged on the support block, and the support block is connected to the slider through bolts.

[0013] In a further embodiment, the sliding component includes a guide groove arranged on the support block and a guide rail fixed on the frame and cooperating with the guide groove.

[0014] In a further embodiment, a gap is left between the frame and the winding coil. The handle lead screw is rotatably connected to the support block and is in threaded cooperation with the frame.

[0015] In a further embodiment, the gear set includes three gears. The three gears are all movably connected to the frame. The three gears are all meshed with the bevel gear. At least one gear in the gear set axially extends to form a knob.

[0016] In a further embodiment, the electric cylinder is arranged on one side of the frame. The output shaft of the electric cylinder is rigidly connected to the frame through a threaded joint. The moving direction of the output shaft of the electric cylinder is the same as the moving direction of the slider.

[0017] Beneficial effects: The present invention provides an adjustable linear motor winding coil clamping test bench. The open-frame design with the frame sleeved outside the winding coil can be compatible with coils of different sizes; by rotating the bidirectional lead screw, the two moving plates move synchronously towards / away from each other to adapt to the clamping of coils of different widths and ensure balanced force. The handle lead screw is movably connected to the support block and is in threaded cooperation with the frame. By rotating the handle, the overall height of the frame is finely adjusted to realize the adjustment of the air gap between the coil and the permanent magnet array;

[0018] The sliding assembly consists of guide grooves and guide rails to ensure the straightness of the frame when it moves vertically and avoid deflection. The bevel gear set connects the ends of the two bidirectional lead screws, and the gear set is driven by a knob to make the two bidirectional lead screws rotate synchronously to avoid coil deformation caused by unilateral clamping. The light rod and the moving plate slide together to limit the freedom of the moving plate and prevent shaking during clamping. The output shaft of the electric cylinder simulates the reciprocating motion of the linear motor during actual operation to test the electromagnetic properties of the winding coil in motion (such as thrust fluctuations and inductance changes). At least one gear in the gear set is provided with a knob, which can be driven manually or by docking with automated equipment to achieve semi-automatic or fully automatic control of clamping / air gap adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a stereogram of the present invention.

[0020] Figure 2 It is a top view of the present invention.

[0021] Figure 3 It is the front view of the present invention.

[0022] Figure 4 It is a left view of the present invention.

[0023] Figure 5 It is a stereoscopic diagram of the adjustment component of the present invention.

[0024] Figure 6 It is a top view of the adjustment component of the present invention.

[0025] Figure 7 It is a partial enlarged view of the handle screw rod of the present invention.

[0026] Figure 8 It is a partial enlarged view of the guide rail of the present invention.

[0027] Figure 9 It is the front view of the adjustment component of the present invention.

[0028] Figure 10 It is a schematic diagram of the gear set matching of the present invention.

[0029] The attached parts are marked as: 1. Base plate; 2. Electric cylinder; 3. Permanent magnet array; 4. Winding coil; 5. Adjustment assembly; 6. Sliding assembly; 7. Bevel gear; 11. Slide rail; 12. Slider; 51. Frame; 52. Support block; 61. Guide groove; 62. Guide rail; 71. Gear set; 511. Moving plate; 512. Bidirectional lead screw; 513. Light rod; 531. Handle lead screw; 711. Knob. DETAILED DESCRIPTION

[0030] To solve the problems existing in the prior art, the present invention provides an adjustable linear motor winding coil clamping test bench, which can adapt to coils of different specifications, accurately control the air gap spacing, and ensure clamping stability.

[0031] The following further specifically describes this solution through embodiments in conjunction with the accompanying drawings.

[0032] In the present application, an adjustable linear motor winding coil clamping test bench is proposed, including:

[0033] A base plate 1, a slide rail 11 and an electric cylinder 2 installed on the base plate 1, a slider 12 slidably installed on the slide rail 11, and an adjustment assembly 5 provided on the slider 12. A permanent magnet array 3 is provided between the two slide rails 11, and a winding coil 4 is arranged above the permanent magnet array 3; the electric cylinder 2 is arranged on one side of the frame 51, and the output shaft of the electric cylinder 2 is rigidly connected to the frame 51 through a threaded joint, and the moving direction of the output shaft of the electric cylinder 2 is the same as the moving direction of the slider 12.

[0034] The adjustment assembly 5 includes a frame 51 sleeved outside the winding coil 4. Two moving plates 511 abutting against the winding coil 4 are symmetrically arranged inside the frame 51. A bidirectional lead screw 512 and a smooth rod 513 are symmetrically installed on both sides of the frame 51. The bidirectional lead screw 512 is movably connected to the frame 51, and the smooth rod 513 is fixedly connected to the frame 51. The bidirectional lead screw 512 and the smooth rod 513 are arranged parallel to each other on the frame 51; the smooth rod 513 penetrates through the moving plate 511 and has a clearance fit with the moving plate 511.

[0035] The two moving plates 511 are respectively in threaded fit with both ends of the bidirectional lead screw 512. Support blocks 52 are further provided on both sides of the frame 51. The support blocks 52 are arranged parallel to the bidirectional lead screw 512. A plurality of screw holes are provided on the support blocks 52, and the support blocks 52 are connected to the slider 12 through bolts.

[0036] A sliding assembly 6 and a handle lead screw 531 are provided between the support block 52 and the frame 51. The sliding assembly 6 includes a guide groove 61 provided on the support block 52 and a guide rail 62 fixed on the frame 51 and cooperating with the guide groove 61. A gap is left between the frame 51 and the winding coil 4. The handle lead screw 531 is rotatably connected to the support block 52, and the handle lead screw 531 is in threaded fit with the frame 51;

[0037] A bevel gear 7 meshing with one end of the bidirectional lead screw 512 is provided on the frame 51. A gear set 71 is provided between the two bevel gears 7; the gear set 71 includes three gears, all three gears are movably connected to the frame 51, all three gears are meshed with the bevel gear 7, and at least one gear in the gear set 71 axially extends to form a knob 711.

[0038] Working principle: First, place the winding coil 4 to be measured inside the frame 51 so that it is located between the two moving plates 511. Rotate the knob 711 on the gear set 71. After the bevel gear 7 meshes with one end of the bidirectional lead screw 512, drive the two bidirectional lead screws 512 to rotate synchronously and in opposite directions. The bidirectional lead screws 512 drive the two moving plates 511 to move towards each other. Through the guidance of the optical rod 513, ensure that the moving track has no deviation. The inner side of the moving plate 511 is in close contact with the coil surface to form a uniform clamping force. Lock the frame 51 and the slider 12 through the bolts on the support block 52 to prevent overall shaking during the test.

[0039] During the process of adjusting the spacing between the winding coil 4 and the permanent magnet array 3, rotate the handle lead screw 531. Through threaded engagement, drive the frame 51 to move vertically along the sliding assembly 6 (guide groove 61 + guide rail 62). The optical rod 513 restricts the horizontal displacement of the moving plate 511 to ensure adjustment only in the vertical direction. After adjusting to the target air gap, tighten the bolts of the support block 52 to fix the position of the frame 51.

[0040] Static parameter detection process of the linear motor:

[0041] Resistance / Inductance measurement: Before energization, directly measure the DC resistance and inductance value of the coil with an LCR meter;

[0042] Insulation test: Use a megohmmeter to detect the insulation resistance between the coil and the frame 51 (>100 MΩ);

[0043] Dynamic performance detection process of the linear motor: Start the electric cylinder 2 to push the frame 51 (including the coil) to move uniformly or variably along the slide rail 11. The permanent magnet array 3 generates an alternating magnetic field, and the coil cuts the magnetic induction lines to generate an induced electromotive force.

[0044] Thrust detection: Measure the electromagnetic force received by the frame 51 through a force sensor and calculate the thrust constant (F = BLI).

[0045] Current / Voltage waveform: Use an oscilloscope to record the dynamic electrical parameters of the coil and analyze the harmonic distortion.

[0046] Temperature rise monitoring: Use an infrared thermal imager to monitor the temperature change of the coil in real time;

[0047] Working condition simulation: Program the motion curve of the electric cylinder 2 (such as sinusoidal reciprocation), test the response characteristics of the coil under acceleration and braking, and simultaneously obtain static parameters (such as inductance) and dynamic performance (such as thrust fluctuation, efficiency).

[0048] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation to the present invention itself. Various changes can be made in its form and details without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. An adjustable linear motor winding coil clamping test bench, comprising: A bottom plate, a slide rail and an electric cylinder mounted on the bottom plate, a slider slidably mounted on the slide rail, and an adjustment assembly provided on the slider. A permanent magnet array is provided between the two slide rails, and a winding coil is arranged above the permanent magnet array; It is characterized in that the adjustment assembly includes a frame sleeved outside the winding coil. Two moving plates abutting against the winding coil are symmetrically arranged inside the frame. A bidirectional lead screw and a smooth rod are symmetrically mounted on both sides of the frame. The two moving plates are respectively in threaded cooperation with the two ends of the bidirectional lead screw. Support blocks are further provided on both sides of the frame. A sliding assembly and a handle lead screw are provided between the support blocks and the frame. A bevel gear meshing with one end of the bidirectional lead screw is provided on the frame, and a gear set is provided between the two bevel gears.

2. The adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The bidirectional lead screw is movably connected to the frame, the smooth rod is fixedly connected to the frame, and the bidirectional lead screw and the smooth rod are arranged parallel to each other on the frame; the smooth rod penetrates through the moving plate and is in clearance fit with the moving plate.

3. An adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The support block is arranged parallel to the bidirectional lead screw, and a plurality of screw holes are further provided on the support block. The support block is connected to the slider by bolts.

4. An adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The sliding assembly includes a guide groove provided on the support block and a guide rail fixed on the frame and cooperating with the guide groove.

5. An adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that A gap is left between the frame and the winding coil. The handle lead screw is rotatably connected to the support block, and the handle lead screw is in threaded cooperation with the frame.

6. An adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The gear set includes three gears. The three gears are all movably connected to the frame. The three gears are all meshed with the bevel gear. At least one gear in the gear set axially extends to form a knob.

7. An adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The electric cylinder is arranged on one side of the frame. The output shaft of the electric cylinder is rigidly connected to the frame through a threaded joint. The moving direction of the output shaft of the electric cylinder is the same as the moving direction of the slider.

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