Adjustable linear motor winding coil clamping test board

Abstract

The application provides an adjustable linear motor winding coil clamping test table, which comprises a bottom plate, slide rails and electric cylinders installed on the bottom plate, sliding blocks installed on the slide rails, and an adjusting assembly arranged on the sliding blocks, a permanent magnet array is arranged between the two slide rails, and a winding coil is arranged above the permanent magnet array; the open frame design of the frame sleeve outside the winding coil is compatible with different sizes of coils; the synchronous forward / reverse movement of the two moving plates is realized through the rotating bidirectional screw rod, the clamping of different width coils is adapted, the force balance is ensured, the handle screw rod is movably connected with the supporting block and is in threaded connection with the frame, the overall height of the frame is finely adjusted through the rotating handle, and the air gap between the coil and the permanent magnet array is adjusted.

Description

Technical Field

[0001] This invention relates to an adjustable linear motor winding coil clamping test bench, and particularly to the field of motor testing. Background Technology

[0002] Linear motors, as electromagnetic devices that directly convert electrical energy into linear motion, are widely used in industrial automation, semiconductor manufacturing, and precision machine tools due to their advantages such as high precision, high response speed, and maintenance-free operation. The winding coil, as the core component of a linear motor, directly affects the motor's thrust, efficiency, and stability. However, the testing and optimization of the winding coil face numerous challenges in the research and development and production of linear motors.

[0003] Traditional testing equipment is usually designed for specific specifications of winding coils and lacks versatility. The size and shape of winding coils of different linear motor models vary greatly, and existing testing benches are difficult to adapt quickly, resulting in low testing efficiency. When changing test samples, the fixtures need to be adjusted frequently, which seriously affects the continuity of the testing process.

[0004] The performance of a linear motor is closely related to the air gap between the winding coil and the permanent magnet. Existing testing equipment mostly uses manual adjustment or simple mechanical positioning, which makes it difficult to achieve precise control of the air gap. Moreover, the adjustment process is prone to human error, affecting the reliability of the test data.

[0005] During testing, the winding coil must withstand electromagnetic force and mechanical vibration. Traditional clamping methods (such as bolt fixing or spring compression) can easily lead to coil deformation or displacement, especially during high-speed and high-load testing, which may cause poor contact or measurement deviation.

[0006] Most test benches rely on manual operation and lack integrated adjustment and testing systems. They cannot achieve automated adjustment of coil position and air gap distance, and it is also difficult to achieve efficient linkage with performance testing equipment (such as thrust sensors and electrical parameter analyzers). Summary of the Invention

[0007] Purpose of the invention: To propose an adjustable linear motor winding coil clamping test bench to solve the above-mentioned problems existing in the prior art.

[0008] Technical solution: An adjustable linear motor winding coil clamping test bench, comprising:

[0009] The base plate, the slide rail and electric cylinder mounted on the base plate, the slider slidably mounted on the slide rail, and the adjustment component on the slider, with a permanent magnet array between the two slide rails and a winding coil arranged above the permanent magnet array;

[0010] The adjustment assembly includes a frame sleeved outside the winding coil. Two movable plates that abut against the winding coil are symmetrically arranged inside the frame. A bidirectional lead screw and a guide rod are symmetrically installed on both sides of the frame. The two movable plates are threadedly engaged with both ends of the bidirectional lead screw. Support blocks are also 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 that meshes with one end of the bidirectional lead screw is provided on the frame. A gear set is provided 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, and the bidirectional lead screw and the optical rod are arranged parallel to each other on the frame; the optical rod passes through the movable plate and is in clearance fit with the movable plate.

[0012] In a further embodiment, the support block and the bidirectional lead screw are arranged parallel to each other, and the support block is also provided with multiple screw holes. The support block is connected to the slider by bolts.

[0013] In a further embodiment, the sliding component includes a guide groove disposed on the support block and a guide rail fixed to 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 screw is rotatably connected to the support block, and the handle screw is threadedly engaged with the frame.

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

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

[0017] Beneficial effects: This invention proposes an adjustable linear motor winding coil clamping test bench. The open frame design, with the frame sleeved outside the winding coil, is compatible with coils of different sizes. By rotating the bidirectional lead screw, the two moving plates move synchronously in opposite directions to accommodate coils of different widths and ensure balanced force. The handle lead screw is movably connected to the support block and threaded into the frame. By rotating the handle, the overall height of the frame can be finely adjusted to achieve 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 during vertical movement and prevent skewing. The bevel gear set connects the ends of the two bidirectional lead screws, and the gear set is driven by a knob to rotate synchronously, preventing coil deformation caused by clamping on one side. The smooth rod slides with the moving plate to limit the degree of freedom of the moving plate and prevent wobbling during clamping. The output shaft of the electric cylinder simulates the reciprocating motion of the linear motor during actual operation to test the electromagnetic performance of the winding coil in motion (such as thrust fluctuation and inductance change). At least one gear in the gear set is equipped with a knob, which can be driven manually or by connecting to automated equipment to achieve semi-automatic or fully automatic control of clamping / air gap adjustment. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention.

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

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

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

[0023] Figure 5 This is a perspective view of the adjustment component of the present invention.

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

[0025] Figure 7 This is a partially enlarged view of the handle lead screw of the present invention.

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

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

[0028] Figure 10 This is a schematic diagram of the gear set mating according to the present invention.

[0029] The attached components are marked as follows: 1. Base plate; 2. Electric cylinder; 3. Permanent magnet array; 4. Winding coil; 5. Adjustment component; 6. Sliding component; 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. Two-way lead screw; 513. Smooth rod; 531. Handle lead screw; 711. Knob. Detailed Implementation

[0030] To address the problems existing in the prior art, this invention provides an adjustable linear motor winding coil clamping test bench that can accommodate coils of different specifications, precisely control the air gap distance, and ensure clamping stability.

[0031] The present solution will be further described in detail below through embodiments and with reference to the accompanying drawings.

[0032] This application proposes an adjustable linear motor winding coil clamping test bench, comprising:

[0033] The system includes a base plate 1, a slide rail 11 and an electric cylinder 2 mounted on the base plate 1, a slider 12 slidably mounted on the slide rail 11, and an adjustment assembly 5 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 located 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. The moving direction of the output shaft of the electric cylinder 2 is consistent with the moving direction of the slider 12.

[0034] The adjustment assembly 5 includes a frame 51 sleeved outside the winding coil 4. Two movable plates 511 symmetrically arranged inside the frame 51 and abutting against the winding coil 4 are provided. Bidirectional lead screws 512 and guide rods 513 are symmetrically installed on both sides of the frame 51. The bidirectional lead screws 512 are movably connected to the frame 51, and the guide rods 513 are fixedly connected to the frame 51. The bidirectional lead screws 512 and guide rods 513 are arranged parallel to each other on the frame 51. The guide rods 513 pass through the movable plates 511 and are clearance-fitted with the movable plates 511.

[0035] Two movable plates 511 are threadedly engaged with both ends of the bidirectional lead screw 512. Support blocks 52 are also provided on both sides of the frame 51. The support blocks 52 are arranged parallel to the bidirectional lead screw 512. The support blocks 52 are also provided with multiple screw holes. The support blocks 52 are connected to the slider 12 by bolts.

[0036] A sliding component 6 and a handle screw 531 are provided between the support block 52 and the frame 51. The sliding component 6 includes a guide groove 61 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 screw 531 is rotatably connected to the support block 52 and threadedly engaged with the frame 51.

[0037] The frame 51 is provided with a bevel gear 7 that meshes with one end of the bidirectional lead screw 512, and 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 mesh with the bevel gear 7, and at least one gear in the gear set 71 extends axially to form a knob 711.

[0038] Working principle: First, the coil 4 to be tested is placed inside the frame 51, positioned between the two moving plates 511. The knob 711 on the rotating gear set 71 meshes with one end of the double-acting lead screw 512 via the bevel gear 7, driving the two double-acting lead screws 512 to rotate synchronously in opposite directions. The double-acting lead screws 512 drive the two moving plates 511 to move towards each other. The guide rod 513 ensures a straight movement trajectory. The inner side of the moving plates 511 is tightly fitted against the coil surface, forming a uniform clamping force. The frame 51 and the slider 12 are locked together by bolts on the support block 52 to prevent overall shaking during testing.

[0039] The process of adjusting the gap between the winding coil 4 and the permanent magnet array 3 involves rotating the handle lead screw 531, which drives the frame 51 to move vertically along the sliding assembly 6 (guide groove 61 + guide rail 62) through threaded engagement. The guide rod 513 restricts the horizontal displacement of the moving plate 511, ensuring that adjustment is only performed in the vertical direction. After adjusting to the target air gap, the support block 52 bolts are tightened to fix the position of the frame 51.

[0040] The static parameter detection process of a linear motor:

[0041] Resistance / Inductance Measurement: Before powering on, use an LCR meter to directly measure the DC resistance and inductance of the coil;

[0042] Insulation test: The megohmmeter is used to test the insulation resistance between the coil and frame 51 (>100MΩ);

[0043] Dynamic performance testing process of linear motor: Start cylinder 2, push frame 51 (including coil) to move at a constant or variable speed along slide rail 11, permanent magnet array 3 generates alternating magnetic field, coil cuts magnetic field lines to generate induced electromotive force.

[0044] Thrust detection: The electromagnetic force on frame 51 is measured using a force sensor, and the thrust constant (F = BLI) is calculated.

[0045] Current / voltage waveforms: The oscilloscope records the dynamic electrical parameters of the coil and analyzes harmonic distortion.

[0046] Temperature rise monitoring: Infrared thermal imager monitors coil temperature changes in real time;

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

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

Claims

1. An adjustable linear motor winding coil clamping test bench, comprising: The base plate, the slide rail and electric cylinder mounted on the base plate, the slider slidably mounted on the slide rail, and the adjustment component on the slider, with a permanent magnet array between the two slide rails and a winding coil arranged above the permanent magnet array; The adjustment assembly is characterized in that it includes a frame sleeved outside the winding coil, two movable plates symmetrically arranged inside the frame that abut against the winding coil, a bidirectional lead screw and a guide rod symmetrically installed on both sides of the frame, the two movable plates respectively threaded into both ends of the bidirectional lead screw, support blocks on both sides of the frame, a sliding assembly and a handle lead screw between the support blocks and the frame, a bevel gear meshing with one end of the bidirectional lead screw on the frame, and a gear set between the two bevel gears; The sliding assembly includes a guide groove provided on the support block and a guide rail fixed to the frame and cooperating with the guide groove; A gap is left between the frame and the winding coil. The handle screw is rotatably connected to the support block. The handle screw is threaded into the frame. The overall height of the frame can be finely adjusted by rotating the handle screw.

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, and 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 passes through the movable plate and is in clearance fit with the movable plate.

3. The adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The support block and the bidirectional lead screw are arranged parallel to each other. The support block is also provided with multiple screw holes. The support block is connected to the slider by bolts.

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

5. The adjustable linear motor winding coil clamping test bench according to claim 1, characterized in that, The electric cylinder is located on one side of the frame, and the output shaft of the electric cylinder is rigidly connected to the frame through a threaded joint. The moving direction of the electric cylinder output shaft is consistent with the moving direction of the slider.

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