A straight line motor flatness detection platform
By designing a platform for testing the flatness of linear motors, and utilizing components such as electric push rods and forward and reverse motors, the platform enables rapid clamping and multi-point testing of the linear motor housing base surface. This solves the problems of low testing efficiency and poor accuracy in existing technologies, and achieves efficient flatness testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ORIENTALMATERIALS CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-02
Smart Images

Figure CN224317043U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of linear motor testing technology, specifically a platform for testing the flatness of linear motors. Background Technology
[0002] A linear motor is a special type of motor that directly converts electrical energy into linear motion mechanical energy without the need for intermediate conversion devices. Its working principle can be understood as cutting a rotary motor along its radius and flattening it, and driving the primary or secondary motor to perform linear motion through electromagnetic force. It has advantages such as high precision, high speed, and contactless transmission.
[0003] As the supporting structure of a linear motor, the flatness of the base surface directly affects the overall stability of the motor. An uneven base surface can cause the guide rail to deform or be subjected to uneven force, resulting in positioning deviation and mechanical vibration. Currently, total stations are usually used for testing, but total stations have a complex structure and require many operating steps, making it impossible to quickly test the base surface of the linear motor housing, thus reducing the probability of successful testing.
[0004] Therefore, it is particularly important to design a platform for detecting the flatness of linear motors to overcome the above-mentioned technical defects and improve the overall practicality. Utility Model Content
[0005] The purpose of this invention is to provide a platform for detecting the flatness of linear motors, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A platform for detecting the flatness of a linear motor includes a detection platform. Support frames are symmetrically arranged on both the left and right sides of the top of the detection platform. Electric push rods are mounted on the outer sides of the support frames. The output ends of two sets of electric push rods on the same side are connected to a motor positioning clamp via clamps. Fixed crossbars are provided on both the left and right sides of the detection platform. A forward and reverse motor is mounted at the front end of each fixed crossbar. The output end of the forward and reverse motor passes through the interior of the fixed crossbar and is connected to a rotating screw. A screw sleeve is threaded onto the outer side of the rotating screw. A detection arch is fixed between the tops of the two sets of screw sleeves. A rectangular groove is provided at the top and middle of the frame. A telescopic cylinder is installed on the left side of the top of the detection arch frame. The drive end of the telescopic cylinder is connected to a folding block. The bottom end of the folding block is connected to a telescopic outer rod. A telescopic inner rod is slidably connected inside the telescopic outer rod. A rack is provided on the outside of the telescopic inner rod. A drive motor is installed at the bottom of the outside of the telescopic outer rod. The output end of the drive motor is connected to a gear that meshes with the rack. A spring assembly is installed at the bottom of the telescopic inner rod. A detection guide wheel is rotatably connected to the bottom of the spring assembly. Multiple linear position sensors are embedded in the outside of the detection guide wheel.
[0008] As a preferred embodiment of this utility model, a display controller is provided on the right side of the top of the detection arch frame. The display controller is connected to the electric push rod, the forward and reverse motor, the telescopic cylinder, the drive motor, and the linear position sensor via wires, and the connection is electrical.
[0009] As a preferred embodiment of this utility model, both ends of the rotating screw are rotatably connected to the inside of the fixed crossbar through bearing seats.
[0010] As a preferred embodiment of this utility model, the top of the fixed crossbar is provided with a sliding groove extending along the length direction of the fixed crossbar, and the connection between the screw sleeve and the sliding groove is a sliding connection.
[0011] As a preferred embodiment of this utility model, the connection between the folded block and the rectangular groove is a sliding connection.
[0012] As a preferred embodiment of this utility model, the drive motor is fixedly mounted on the outside of the telescopic outer rod via a motor support.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] In this invention, a flatness detection platform for linear motors is provided, which can quickly clamp the linear motor and detect the flatness of one of its outer shell base surfaces. It can also perform multi-point linear motion detection on one of its outer shell base surfaces, thereby improving the comprehensiveness and accuracy of the detection. Attached Figure Description
[0015] Figure 1 This is a perspective view of the overall structure of this utility model;
[0016] Figure 2 This is a structural diagram of the fixed crossbar part of this utility model;
[0017] Figure 3 This is a structural diagram of the arch frame part of the present invention.
[0018] In the diagram: 1. Detection platform; 2. Support frame; 201. Electric push rod; 202. Clamping plate; 203. Motor positioning clamp; 3. Fixed crossbar; 301. Forward and reverse motor; 302. Rotating screw; 303. Screw sleeve; 4. Detection arch frame; 401. Rectangular groove; 402. Telescopic cylinder; 403. Folded block; 404. Telescopic outer rod; 405. Telescopic inner rod; 406. Rack; 407. Drive motor; 408. Gear; 409. Spring assembly; 410. Detection guide wheel; 411. Linear position sensor. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is 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.
[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0024] A platform for detecting the flatness of a linear motor includes a detection platform 1. Support frames 2 are symmetrically arranged on the left and right sides of the top of the detection platform 1. Electric push rods 201 are installed on the outer side of the support frames 2. The output ends of two sets of electric push rods 201 on the same side are connected to a motor positioning clamp 203 through clamps 202. Fixed crossbars 3 are arranged on the left and right sides of the detection platform 1. A forward and reverse motor 301 is installed at the front end of the fixed crossbar 3. The output end of the forward and reverse motor 301 passes through the interior of the fixed crossbar 3 and is connected to a rotating screw 302. A screw sleeve 303 is threaded onto the outer side of the rotating screw 302. A detection arch frame 4 is fixed between the tops of the two sets of screw sleeves 303.
[0025] Both ends of the rotating screw 302 are rotatably connected to the inside of the fixed crossbar 3 through bearing seats. The top of the fixed crossbar 3 is provided with a sliding groove extending along the length of the fixed crossbar 3. The connection between the screw sleeve 303 and the sliding groove is a sliding connection.
[0026] In this embodiment, please refer to Figure 3 A rectangular groove 401 is provided at the top and middle of the detection arch 4. A telescopic cylinder 402 is installed on the left side of the top of the detection arch 4. A folding block 403 is connected to the drive end of the telescopic cylinder 402. A telescopic outer rod 404 is connected to the bottom end of the folding block 403. A telescopic inner rod 405 is slidably connected inside the telescopic outer rod 404. A rack 406 is provided on the outside of the telescopic inner rod 405. A drive motor 407 is installed at the bottom of the outside of the telescopic outer rod 404. A gear 408 that meshes with the rack 406 is connected to the output end of the drive motor 407. A spring assembly 409 is installed at the bottom of the telescopic inner rod 405. A detection guide wheel 410 is rotatably connected to the bottom of the spring assembly 409. Multiple linear position sensors 411 are embedded in the outside of the detection guide wheel 410.
[0027] The right side of the top of the detection arch 4 is equipped with a display controller. The display controller is connected to the electric push rod 201, the forward and reverse motor 301, the telescopic cylinder 402, the drive motor 407, and the linear position sensor 411 by wires. The connection is electrical. The folded block 403 is connected to the rectangular groove 401 by sliding connection. The drive motor 407 is fixedly installed on the outside of the telescopic outer rod 404 by a motor support.
[0028] The working process of this utility model is as follows: In use, the linear motor is placed on the detection platform 1. Then, the electric push rod 201 is started to drive the motor positioning clamps 203 on both sides to clamp and fix the linear motor. Next, the forward and reverse motors 301 are started to drive the rotating screw 302 to rotate. The screw 302's thread drives the screw sleeve 303 to move back and forth, causing the detection arch 4 to move above the linear motor. During the movement, the drive motor 407 is started to drive the gear 408 to mesh with the rack 406, thereby causing the telescopic inner rod 405 to move up and down within the telescopic outer rod 404 until the detection guide wheel 410 is in contact with the base surface of the linear motor's outer shell. Under the action of the spring assembly 409, the detection guide wheel 410... Rolling on the top surface of the outer casing base, its linear position sensor 411 detects the flatness. When there is unevenness, the spring assembly 409 moves in coordination with the movement, and the information is displayed on the display controller in time. The detection stops, and the staff handles it in time. If the flatness of one straight line of the outer casing base is normal, the telescopic cylinder 402 drives the telescopic outer rod 404 to move laterally and continue to detect the flatness of the outer casing base in a straight line until the entire outer casing base is detected. This process is repeated to detect the four bases of the linear motor. It can quickly clamp the linear motor and detect the flatness of one outer casing base, and can perform multi-point linear motion detection on one outer casing base, improving the comprehensiveness and accuracy of the detection.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A platform for detecting the flatness of a linear motor, comprising a detection platform (1), characterized in that: The detection platform (1) has symmetrical support frames (2) on both the left and right sides of its top. Electric push rods (201) are installed on the outer side of each support frame (2). The output ends of two sets of electric push rods (201) on the same side are connected to a motor positioning clamp (203) via clamps (202). Fixed crossbars (3) are installed on both the left and right sides of the detection platform (1). A forward and reverse motor (301) is installed at the front end of each fixed crossbar (3). The output end of the forward and reverse motor (301) passes through the interior of the fixed crossbar (3) and is connected to a rotating screw (302). A screw sleeve (303) is threaded onto the outer side of the rotating screw (302). A detection arch (4) is fixed between the tops of the two sets of screw sleeves (303). A rectangular groove (401) is opened at the top and middle of the detection arch (4). A telescopic cylinder (402) is installed on the left side of the top of the arch measuring frame (4). The drive end of the telescopic cylinder (402) is connected to a folded block (403). The bottom end of the folded block (403) is connected to a telescopic outer rod (404). A telescopic inner rod (405) is slidably connected inside the telescopic outer rod (404). A rack (406) is provided on the outside of the telescopic inner rod (405). A drive motor (407) is installed at the bottom of the outside of the telescopic outer rod (404). A gear (408) meshing with the rack (406) is connected to the output end of the drive motor (407). A spring assembly (409) is installed at the bottom of the telescopic inner rod (405). A detection guide wheel (410) is rotatably connected to the bottom of the spring assembly (409). Multiple linear position sensors (411) are embedded in the outside of the detection guide wheel (410).
2. The platform for detecting the flatness of a linear motor according to claim 1, characterized in that: The top right side of the detection arch (4) is provided with a display controller, which is connected to the electric push rod (201), the forward and reverse motor (301), the telescopic cylinder (402), the drive motor (407), and the linear position sensor (411) by wires, and the connection is electrical.
3. The platform for detecting the flatness of a linear motor according to claim 1, characterized in that: Both ends of the rotating screw (302) are rotatably connected to the inside of the fixed crossbar (3) through bearing seats.
4. The platform for detecting the flatness of a linear motor according to claim 1, characterized in that: The top of the fixed crossbar (3) is provided with a sliding groove extending along the length of the fixed crossbar (3), and the connection between the screw sleeve (303) and the sliding groove is a sliding connection.
5. The platform for detecting the flatness of a linear motor according to claim 1, characterized in that: The connection between the folded block (403) and the rectangular groove (401) is a sliding connection.
6. The platform for detecting the flatness of a linear motor according to claim 1, characterized in that: The drive motor (407) is fixedly installed on the outside of the telescopic outer rod (404) via a motor support.