A shearing fork size detection tool for an elevator

By using an automated inspection fixture with through-beam photoelectric sensors and pneumatic grippers, the problems of low efficiency and inaccuracy in scissor lift dimension inspection have been solved, achieving efficient and accurate scissor lift dimension measurement to meet the needs of mass production.

CN224302991UActive Publication Date: 2026-05-29JINDA HEAVY IND (TIANJIN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINDA HEAVY IND (TIANJIN) CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing technologies suffer from low efficiency and difficulty in ensuring the accuracy of scissor lift dimension detection, as well as high manual labor intensity, making it difficult to meet the needs of mass production.

Method used

A detection fixture using a combination of a through-beam photoelectric sensor and a pneumatic gripper enables automated positioning and scanning measurement of the scissor lift, reducing manual operation and improving measurement accuracy and stability.

Benefits of technology

It enables efficient and accurate measurement of scissor lift dimensions, reduces the influence of human factors, improves the comprehensiveness and repeatability of measurements, and meets the high efficiency requirements of modern industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of shears fork rod size detection tool of elevator, including detection bench, the detection bench top side front and rear two ends are equipped with first transverse linear slide, and the other side front and rear two ends are equipped with second transverse linear slide, the slide seat top of first transverse linear slide is equipped with longitudinal linear slide, and the slide seat top of longitudinal linear slide is installed with support frame, and support frame side is installed with C-shaped frame, and the upper side and lower side of C-shaped frame correspond and are installed with opposite emission photoelectric sensor, the slide seat top of second transverse linear slide is installed with cylinder, and the telescopic rod top of cylinder is installed with U-shaped frame, and adjustable angle shears fork rod clamp is installed in U-shaped frame, and detection bench side is installed with the control box connected with first transverse linear slide, second transverse linear slide, longitudinal linear slide, opposite emission photoelectric sensor, cylinder, clamping mechanism, for the operation control of the above component is realized.The utility model is high in measurement precision, and convenient to use.
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Description

Technical Field

[0001] This utility model relates to the field of scissor lift processing technology, and in particular to a tooling for detecting the dimensions of the scissor lift rod. Background Technology

[0002] Scissor lifts are tubular components of elevators, and their dimensional accuracy directly affects the elevator's load-bearing capacity, stability, and service life. During the production of scissor lifts, the dimensions (length, width, and thickness) of randomly selected samples are typically inspected. Currently, manual measurement is commonly used, employing traditional measuring tools such as calipers and micrometers to measure various dimensions of the scissor lift. This method is inefficient, highly susceptible to human error, and prone to inaccuracies. Furthermore, when inspecting a large number of samples, the high labor intensity and fatigue of manual workers further compromise measurement accuracy, making it difficult to meet the demands of mass production. Summary of the Invention

[0003] This utility model aims to address the shortcomings of existing technologies by providing a tooling for detecting the dimensions of a scissor lift.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a scissor lift dimension detection fixture, comprising a detection table, a first transverse linear slide table at both ends of one side of the top of the detection table, and a second transverse linear slide table at both ends of the other side. A longitudinal linear slide table is provided on the top of the slide seat of the first transverse linear slide table, and a support frame is installed on the top of the slide seat of the longitudinal linear slide table. A C-shaped frame is installed on one side of the support frame, and through-beam photoelectric sensors are installed on the upper and lower sides of the C-shaped frame. A cylinder is installed on the top of the slide seat of the second transverse linear slide table, and a U-shaped frame is installed on the top of the telescopic rod of the cylinder. An angle-adjustable scissor lift clamp is installed inside the U-shaped frame. A control box connected to the first transverse linear slide table, the second transverse linear slide table, the longitudinal linear slide table, the through-beam photoelectric sensor, the cylinder, and the clamping mechanism is installed on one side of the detection table, used to realize the operation control of the first transverse linear slide table, the second transverse linear slide table, the longitudinal linear slide table, the through-beam photoelectric sensor, the cylinder, and the clamping mechanism.

[0005] Specifically, the transmitter and receiver housings of the through-beam photoelectric sensor are respectively equipped with connecting seats on their outer sides. The connecting seats have screws on the side near the C-shaped frame. The upper and lower sides of the C-shaped frame are respectively provided with through holes corresponding to the screws. The connecting seats are fixed by the screws passing through the through holes and tightening the nuts.

[0006] Specifically, the scissor lift clamp includes a rotating shaft, a rotating seat, pneumatic grippers, and a rotary motor. The rotating shaft is rotatably connected to the front and rear inner walls of the U-shaped frame. The rotary motor is installed on one side of the U-shaped frame and drives the rotating shaft to rotate. A pair of rotating seats are fixedly mounted on the rotating shaft. The pneumatic grippers are fixedly connected to the rotating seats. The scissor lift is clamped and fixed by the jaws of the pneumatic grippers.

[0007] Specifically, the inner wall of the pneumatic gripper is provided with a limiting groove near the end of the scissor bar, and the scissor bar is clamped in the limiting groove.

[0008] Specifically, the two second transverse linear slides are located between the two first transverse linear slides.

[0009] The beneficial effects of this invention are as follows: This invention uses a through-beam photoelectric sensor to measure the dimensions of the scissor lift, resulting in high measurement accuracy and providing precise dimensional data. The through-beam photoelectric sensor can scan along the length, width, and thickness of the scissor lift, comprehensively detecting all dimensions and avoiding potential omissions caused by single-direction measurements, thus further improving the comprehensiveness and accuracy of the measurement. The automated positioning of the pneumatic gripper and the automated scanning of the through-beam photoelectric sensor reduce manual operation steps, minimizing the impact of human factors on the measurement results and improving the stability and repeatability of the measurement. Operators only need to place the scissor lift in the pneumatic gripper and start the equipment to complete the measurement, eliminating the need for complex operating procedures and lowering the skill requirements of the operator. It can continuously measure multiple scissor lifts, meeting the high efficiency requirements of modern industrial production. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the state structure of this utility model;

[0011] Figure 2 This is a schematic diagram of another state structure of the present invention;

[0012] Figure 3 This is a schematic diagram of the scissor bar clamp structure of this utility model;

[0013] Figure 4 This is a schematic diagram showing the positions of the first transverse linear slide, the second transverse linear slide, and the longitudinal linear slide of this utility model.

[0014] Figure 5 This is a schematic diagram of the pneumatic gripper structure of this utility model;

[0015] In the diagram: 1-Detection table; 2-First transverse linear slide; 3-Second transverse linear slide; 4-Longitudinal linear slide; 5-Support frame; 6-C-shaped frame; 7-Through-beam photoelectric sensor; 8-Cylinder; 9-U-shaped frame; 10-Control box; 11-Connecting seat; 12-Screw; 13-Rotating shaft; 14-Rotating seat; 15-Pneumatic gripper; 16-Rotary motor; 17-Scissor bar; 18-Limit groove;

[0016] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] like Figures 1-5 As shown, a scissor lift dimension detection fixture includes a detection table 1. A first transverse linear slide 2 is provided at both the front and rear ends of one side of the top of the detection table 1, and a second transverse linear slide 3 is provided at both the front and rear ends of the other side. The two second transverse linear slides 3 are located between the two first transverse linear slides 2. A longitudinal linear slide 4 is provided on the top of the slide seat of the first transverse linear slide 2. A support frame 5 is installed on the top of the slide seat of the longitudinal linear slide 4. A C-shaped frame 6 is installed on one side of the support frame 5. Through-beam photoelectric sensors 7 are installed on the upper and lower sides of the C-shaped frame 6, respectively. Connecting seats 11 are respectively installed on the outer sides of the transmitter and receiver housings of the through-beam photoelectric sensors 7. A screw 12 is provided on the side of the connecting seat 11 near the C-shaped frame 6. Through holes corresponding to the screw 12 are provided on the upper and lower sides of the C-shaped frame 6. The connecting seat 11 is fixed by the screw 12 passing through the through holes and tightening the nut.

[0019] A cylinder 8 is installed on the top of the slide seat of the second transverse linear slide table 3. A U-shaped frame 9 is installed on the top of the telescopic rod of the cylinder 8. An angle-adjustable scissor bar clamp is installed inside the U-shaped frame 9. The scissor bar clamp includes a rotating shaft 13, a rotating seat 14, a pneumatic gripper 15, and a rotary motor 16. The rotating shaft 13 is rotatably connected to the front and rear inner walls of the U-shaped frame 9. The rotary motor 16 is installed on one side of the U-shaped frame 9 and drives the rotating shaft 13 to rotate. A pair of rotating seats 14 are fitted and fixedly connected to the rotating shaft 13. The pneumatic gripper 15 is fixedly connected to the rotating seat 14. The scissor bar 17 is clamped and fixed by the jaws of the pneumatic gripper 15. A limiting groove 18 is provided on the inner wall of the jaws of the pneumatic gripper 15 near the end of the scissor bar 17. The scissor bar 17 is clamped in the limiting groove 18.

[0020] A control box 10 is installed on one side of the testing table 1, which is connected to the first transverse linear slide 2, the second transverse linear slide 3, the longitudinal linear slide 4, the through-beam photoelectric sensor 7, the cylinder 8, and the clamping mechanism. This control box 10 is used to control the operation of the first transverse linear slide 2, the second transverse linear slide 3, the longitudinal linear slide 4, the through-beam photoelectric sensor 7, the cylinder 8, and the clamping mechanism. The control box 10 is equipped with a control panel and an alarm. The control panel is used for starting, stopping, speed adjustment, and mode switching of the equipment. When a defective scissor lift 17 is detected, the alarm sounds.

[0021] The through-beam photoelectric sensor 7 measures dimensions by directly detecting the obstruction of the light beam, and is not affected by changes in the intensity of reflected light. It has higher measurement accuracy and can provide more accurate dimensional data. The through-beam photoelectric sensor 7 can scan along the length, width and thickness of the scissor bar 17, and can comprehensively detect all dimensions of the scissor bar 17. It avoids the problem of possible omissions in single-direction measurement and further improves the comprehensiveness and accuracy of the measurement.

[0022] During measurement, the operator simply places the scissor lift 17 into the limiting groove 18 on the pneumatic gripper 15, and then activates the first transverse linear slide 2 and the longitudinal linear slide 4, positioning the scissor lift 17 between the transmitter and receiver of the through-beam photoelectric sensor 7. Under the action of the longitudinal linear slide 4, the through-beam photoelectric sensor 7 scans along the length direction of the scissor lift 17 to achieve length measurement (see reference). Figure 1 Then, under the action of the first transverse linear slide 2, the width dimension is measured by scanning along the width direction of the scissor bar 17. Simultaneously, the width at multiple positions of the scissor bar 17 can be detected under the action of the longitudinal linear slide 4. After the length and width measurements are completed, the rotary motor 16 drives the rotating shaft 13 to rotate, and the pneumatic gripper 15 rotates to a vertical position. Under the action of the first transverse linear slide 2, the thickness dimension is measured by scanning along the thickness direction of the scissor bar 17 (see reference). Figure 2 Simultaneously, the thickness of the scissor bar 17 at multiple positions can be detected under the action of the longitudinal linear slide 4. After the detection is completed, the various dimensions of the scissor bar 17 are displayed on the control panel. If the error exceeds the allowable range, the alarm will sound. The scissor bar 17 will move away from the through-beam photoelectric sensor 7 under the action of the second transverse linear slide 3, and then the scissor bar 17 can be removed.

[0023] The automated positioning of the pneumatic gripper 15 and the automated scanning of the through-beam photoelectric sensor 7 reduce manual operation steps, minimize the impact of human factors on measurement results, and improve measurement stability and repeatability. Operators only need to place the scissor lift in the pneumatic gripper 15 and start the equipment to complete the measurement; no complicated operating procedures are required, reducing the skill level required of operators. It can continuously measure multiple scissor lifts 17, meeting the high efficiency requirements of modern industrial production.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fixture for detecting the dimensions of a scissor lift lever, comprising a testing table (1), characterized in that, The top of the testing table (1) is provided with a first transverse linear slide (2) at both the front and rear ends on one side, and a second transverse linear slide (3) at both the front and rear ends on the other side. The top of the slide of the first transverse linear slide (2) is provided with a longitudinal linear slide (4). The top of the slide of the longitudinal linear slide (4) is provided with a support frame (5). A C-shaped frame (6) is provided on one side of the support frame (5). A through-beam photoelectric sensor (7) is provided on the upper and lower sides of the C-shaped frame (6). A cylinder (8) is provided on the top of the slide of the second transverse linear slide (3). The cylinder (8) extends... A U-shaped frame (9) is installed on the top of the telescopic rod. An adjustable scissor bar clamp is installed inside the U-shaped frame (9). A control box (10) is installed on one side of the detection table (1) and is connected to the first transverse linear slide (2), the second transverse linear slide (3), the longitudinal linear slide (4), the through-beam photoelectric sensor (7), the cylinder (8), and the clamping mechanism. This control box is used to realize the operation control of the first transverse linear slide (2), the second transverse linear slide (3), the longitudinal linear slide (4), the through-beam photoelectric sensor (7), the cylinder (8), and the clamping mechanism.

2. The scissor lift dimension detection fixture for a lifting platform according to claim 1, characterized in that, The transmitter and receiver housings of the through-beam photoelectric sensor (7) are respectively equipped with connecting seats (11). The connecting seat (11) is provided with a screw (12) on the side near the C-shaped frame (6). The upper and lower sides of the C-shaped frame (6) are respectively provided with through holes corresponding to the screw (12). The connecting seat (11) is fixed by passing the screw (12) through the through hole and tightening the nut.

3. The scissor lift dimension detection fixture for a lifting platform according to claim 1, characterized in that, The scissor lift clamp includes a rotating shaft (13), a rotating seat (14), a pneumatic gripper (15), and a rotary motor (16). The rotating shaft (13) is rotatably connected to the front and rear inner walls of the U-shaped frame (9). The rotary motor (16) is installed on one side of the U-shaped frame (9) and drives the rotating shaft (13) to rotate. A pair of rotating seats (14) are fitted and fixed on the rotating shaft (13). The pneumatic gripper (15) is fixed to the rotating seat (14). The scissor lift (17) is clamped and fixed by the jaws of the pneumatic gripper (15).

4. The scissor lift dimension detection fixture for a lifting platform according to claim 3, characterized in that, The inner wall of the pneumatic gripper (15) near the end of the scissor bar (17) is provided with a limiting groove (18), and the scissor bar (17) is clamped in the limiting groove (18).

5. The scissor lift dimension detection fixture for a lifting platform according to claim 1, characterized in that, Two second transverse linear slides (3) are located between two first transverse linear slides (2).