Height difference detection tool
By designing a height difference detection fixture that includes a base, a base seat, a positioning seat, a rotary motor, and longitudinal and transverse movement mechanisms, the problem of data consistency caused by manual selection of detection points was solved, and the automation and accuracy of workpiece end face height measurement were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, height difference detection is performed by manually selecting detection points, which leads to poor data consistency.
The height difference detection fixture includes a base, a base seat, a positioning seat, a rotary motor, a longitudinal movement mechanism, and a transverse movement mechanism. The rotary motor drives the positioning seat to rotate, and the longitudinal and transverse movement mechanisms adjust the position of the height measurement sensor to automatically measure the height values of four points on the workpiece, ensuring the consistency of the measurement data.
It improves the consistency of workpiece end face height measurement data, realizes automated four-point height measurement, reduces manual intervention, and improves the accuracy of inspection.
Smart Images
Figure CN224079883U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing tooling technology, and in particular to a height difference testing tooling. Background Technology
[0002] After machining, for workpieces with flatness requirements on their end faces, it is necessary to check the height difference of the end faces, such as bearings, which require high flatness. Specifically, during inspection, four inspection points are typically determined on the end face, and the height is measured relative to a unified reference. The height difference between these four points is used to determine whether the end face meets the flatness requirements. Currently, the inspection is mainly conducted by manually selecting four arbitrary points, which introduces randomness. Although this can characterize the flatness to some extent, the consistency of the inspection data is poor. Utility Model Content
[0003] The purpose of this invention is to provide a height difference detection fixture to solve the problem of poor consistency of detection data in the existing technology that relies on manual selection of detection points for height data detection.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A height difference detection fixture includes a base and a pedestal mounted on the base. A positioning seat is rotatably mounted on the pedestal for clamping a workpiece. A rotary motor for driving the positioning seat to rotate is installed inside the pedestal. A support frame located on one side of the pedestal is mounted on the support frame. A longitudinal movement mechanism and a transverse movement mechanism mounted on the longitudinal movement mechanism are mounted on the support frame. A height measuring sensor is mounted on the transverse movement mechanism. The longitudinal movement mechanism and the transverse movement mechanism cooperate to adjust the position of the height measuring sensor relative to the positioning seat. When the rotary motor drives the positioning seat to rotate and the transverse movement mechanism adjusts the transverse movement of the height measuring sensor, the height values of at least four points on the workpiece are measured.
[0006] Preferably, the rotation angle of the rotary motor is 0° and 90°.
[0007] Preferably, a limiting seat located outside the positioning seat is installed on the base.
[0008] Preferably, the base is equipped with a lifting slide rail and a lifting frame slidably mounted on the lifting slide rail. The rotary motor is fixedly mounted on the lifting frame. The base is provided with a rotary cylinder for driving the lifting frame to move up and down. A rotating screw is mounted on the rotary cylinder. A connecting plate that is threadedly engaged with the rotating screw is fixed on the lifting frame.
[0009] Preferably, a bushing is installed on the shaft of the rotary motor, and the bushing is fastened to the positioning seat.
[0010] Preferably, the longitudinal movement mechanism includes a first slide rail fixed on the support frame and a first lead screw mechanism integrated in the first slide rail, wherein a first drive motor connected to the first lead screw mechanism is mounted on the first slide rail.
[0011] Preferably, the traversing mechanism includes a first sliding seat slidably mounted on the first slide rail seat, a second slide rail seat mounted on the first sliding seat, a second lead screw mechanism integrated in the second slide rail seat, and a second drive motor connected to the second lead screw mechanism mounted on the second slide rail seat; the second sliding seat is slidably mounted on the second slide rail seat, and the height measuring sensor is mounted on the second sliding seat.
[0012] Beneficial effects:
[0013] The position of the height measuring sensor is adjusted by the longitudinal and transverse mechanisms to match the position of the positioning seat, thereby ensuring that the height measuring sensor can detect the height value of the workpiece clamped on the positioning seat. During measurement, the height measuring sensor is adjusted to two points on the workpiece by the transverse mechanism to measure the height. After the measurement is completed, the positioning seat and the workpiece are rotated by a rotary motor, and then the height measuring sensor is driven to measure the height at two points on the workpiece again. Since the displacement adjustment distance of the height measuring sensor is relatively fixed, the four points measured after the workpiece rotates are located on the same circle, which can improve the consistency of the height measurement data of the workpiece end face. Moreover, the height value of the four points can be automatically completed after the workpiece is clamped manually. Attached Figure Description
[0014] Figure 1 This is a first-view structural diagram of an embodiment of the present utility model;
[0015] Figure 2 This is a second-view structural schematic diagram of an embodiment of the present utility model;
[0016] Figure 3 This is a first-view structural diagram of the base integrated positioning seat in an embodiment of this utility model;
[0017] Figure 4 This is a second-view structural diagram of the base integrated positioning seat in an embodiment of this utility model;
[0018] exist Figures 1 to 4 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:
[0019] Base 1, Base 2, Positioning seat 3, Rotary motor 4, Support frame 5, Longitudinal movement mechanism 6, First slide rail seat 61, First lead screw mechanism 62, First drive motor 63, Transverse movement mechanism 7, First sliding seat 71, Second slide rail seat 72, Second lead screw mechanism 73, Second drive motor 74, Second sliding seat 75, Height measuring sensor 8, Limit seat 9, Lifting slide rail 10, Lifting frame 11, Rotary cylinder 12, Rotating lead screw 13, Connecting plate 14, Bushing 15. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] See Figures 1-4 As shown in the figure, an embodiment of this utility model proposes a height difference detection fixture for measuring the flatness of the end face of parts such as bearings. Generally, it is necessary to measure the height of four points on the plane, and the flatness can be judged based on the height difference to determine whether it meets the processing requirements. Specifically, the fixture includes a base 1 and a base 2 mounted on the base 1. A positioning seat 3 is rotatably mounted on the base 2. The positioning seat 3 is used to clamp the workpiece. A rotary motor 4 is installed in the base 2 to drive the positioning seat 3 to rotate. After the positioning seat 3 is connected to the rotary motor 4, the rotary motor 4 drives the positioning seat 3 to rotate, thereby adjusting the detection position of the workpiece. Generally, the rotation angle of the rotary motor 4 is 0° and 90°.
[0022] Meanwhile, a support frame 5 located on one side of the base 2 is installed on the base 1. A longitudinal movement mechanism 6 and a transverse movement mechanism 7 are installed on the support frame 5. A height measuring sensor 8 is installed on the transverse movement mechanism 7. The longitudinal movement mechanism 6 and the transverse movement mechanism 7 cooperate to adjust the position of the height measuring sensor 8 relative to the positioning seat 3. During initial positioning, the position of the height measuring sensor 8 relative to the positioning seat 3 is adjusted by the longitudinal movement mechanism 6 and the transverse movement mechanism 7 to ensure that the end face height of the workpiece can be measured. After the position is adjusted, the longitudinal movement mechanism 6 no longer adjusts, while the transverse movement mechanism 7 moves the height measuring sensor 8 back and forth between two measurement points in a preset stroke. The height measuring sensor 8 can be an existing mature product.
[0023] Specifically, when the rotary motor 4 drives the positioning seat 3 to rotate and the transverse mechanism 7 is used to adjust the transverse movement of the height measuring sensor 8, the height values of at least four points on the workpiece are measured. The height measuring sensor 8 is adjusted to reciprocate within a preset stroke by the transverse mechanism 7, and the workpiece is rotated 90° by the positioning seat 3 and the rotary motor 4, thereby achieving the measurement of the height values of four points on the end face of the workpiece. The four points are located on the same circle, and the measurement data has good consistency, making the judgment of flatness more accurate.
[0024] Meanwhile, in order to facilitate the workpiece sliding out when it rotates with the positioning seat 3, a limiting seat 9 located outside the positioning seat 3 is installed on the base 2. The height of the limiting seat 9 can be at least more than half the height of the workpiece, so as to prevent the workpiece from sliding out when rotating.
[0025] To facilitate the placement of workpieces of varying thicknesses onto the positioning seat 3 and to prevent the workpieces from slipping out during rotation, the workpiece needs to be moved downwards when it is thicker and upwards when it is thinner. Specifically, a lifting slide rail 10 and a lifting frame 11 slidably mounted on the lifting slide rail 10 are installed on the base 2. The rotary motor 4 is fixedly mounted on the lifting frame 11. A rotary cylinder 12 is provided on the base 1 to drive the lifting frame 11 to move up and down. A rotating lead screw 13 is installed on the rotary cylinder 12. A connecting plate 14 threadedly engaged with the rotating lead screw 13 is fixed on the lifting frame 11. After the rotary cylinder 12 rotates the rotating lead screw 13, the connecting plate 14 threadedly engages with the rotating lead screw 13, and under the sliding limit action of the lifting frame 11, the lifting frame 11 can move up and down, thereby adjusting the height of the rotary motor 4 and simultaneously adjusting the height of the positioning seat 3.
[0026] To ensure stable installation and support of the positioning seat 3, a bushing 15 is installed on the rotating shaft of the rotary motor. The bushing 15 is fastened to the positioning seat 3, and the positioning seat 3 is connected to the rotating shaft through the bushing 15. The end of the bushing 15 connected to the positioning seat 3 can increase the contact area and ensure the installation stability of the positioning seat 3.
[0027] Specifically, the longitudinal movement mechanism 6 is used to adjust the height of the transverse movement mechanism 7 in the longitudinal direction. The longitudinal movement mechanism 6 includes a first slide rail seat 61 fixed on the support frame 5 and a first lead screw mechanism 62 integrated in the first slide rail seat 61. A first drive motor 63 connected to the first lead screw mechanism 62 is installed on the first slide rail seat 61. The transverse movement mechanism 7 is installed on the first slide rail. After the first lead screw mechanism 62 is driven by the first drive motor 63, it pulls the transverse movement mechanism 7 to slide on the first slide rail, thereby realizing height adjustment.
[0028] Meanwhile, the lateral movement mechanism 7 includes a first sliding seat 71 slidably mounted on the first slide rail seat 61, a second slide rail seat 72 mounted on the first sliding seat 71, a second lead screw mechanism 73 integrated within the second slide rail seat 72, a second drive motor 74 connected to the second lead screw mechanism 73 mounted on the second slide rail seat 72, and a second sliding seat 75 slidably mounted on the second slide rail seat 72. The height measuring sensor 8 is mounted on the second sliding seat 75. After the second drive motor 74 and the second lead screw mechanism 73 are activated, the second sliding seat 75 is pulled to move on the second slide rail seat 72, thereby moving the position of the height measuring sensor 8.
[0029] The vertical movement mechanism 6 and the horizontal movement mechanism 7 work together to achieve the position movement of the height measurement sensor 8. The first slide rail 61, the second slide rail 72, the first lead screw mechanism 62, the second lead screw mechanism 73, the first drive motor 63, and the second drive motor 74 are all integrated existing products.
[0030] Furthermore, existing technologies can be used for all control circuit components, and this embodiment does not involve any improvements to the specific control components.
[0031] 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A height difference detection tool characterized by: The utility model relates to a kind of height measuring device, including base (1) and pedestal (2) installed on the base (1), rotatingly installed with positioning seat (3) on the pedestal (2), positioning seat (3) is used to clamp workpiece, rotating motor (4) for driving the rotation of positioning seat (3) is installed in the pedestal (2); Support frame (5) is installed on the base (1) and located at one side of the pedestal (2), longitudinal moving mechanism (6) and transverse moving mechanism (7) installed on longitudinal moving mechanism (6) are installed on the support frame (5), height measuring sensor (8) is installed on the transverse moving mechanism (7), the position of height measuring sensor (8) relative to positioning seat (3) is adjusted by longitudinal moving mechanism (6) and transverse moving mechanism (7) cooperation; When rotating motor (4) drives positioning seat (3) to rotate and transverse moving mechanism (7) is used to adjust the transverse of height measuring sensor (8), the height value of at least four points on workpiece is measured.
2. The height difference detection tool according to claim 1, wherein: The rotation angle of rotating motor (4) is 0 ° and 90 °.
3. The height difference detection tool according to claim 2, wherein: Limiting seat (9) is installed on the pedestal (2) and located at the outside of positioning seat (3).
4. The height difference detection tool according to claim 3, characterized in that: Lifting slide rail (10) and lifting frame (11) slidingly installed on lifting slide rail (10) are installed on the pedestal (2), rotating motor (4) is fixedly installed on lifting frame (11), rotating cylinder (12) for driving lifting frame (11) to move up and down is provided on the base (1), rotating screw (13) is installed on rotating cylinder (12), connecting plate (14) screwing with rotating screw (13) is fixed on lifting frame (11).
5. The height difference detection tool according to claim 4, characterized in that: Shaft sleeve (15) is installed on the rotating shaft of rotating motor, and shaft sleeve (15) is tightly connected on positioning seat (3).
6. The height difference detection tool according to any one of claims 1-5, characterized in that: Longitudinal moving mechanism (6) includes first slide rail seat (61) fixed on support frame (5) and first screw mechanism (62) integrated in first slide rail seat (61), first drive motor (63) connected with first screw mechanism (62) is installed on first slide rail seat (61).
7. The height difference detection tool according to claim 6, wherein: Transverse moving mechanism (7) includes first sliding seat (71) slidingly installed on first slide rail seat (61), second slide rail seat (72) is installed on first sliding seat (71), second screw mechanism (73) is integrated in second slide rail seat (72), second drive motor (74) connected with second screw mechanism (73) is installed on second slide rail seat (72); Second sliding seat (75) is slidingly installed on second slide rail seat (72), and height measuring sensor (8) is installed on second sliding seat (75).