Linear motion precision detection device and focused ultrasonic treatment equipment
By using a combination of flexible adjustment rod, horizontal adjustment assembly and vertical adjustment assembly in the linear motion accuracy detection device, the problem of difficulty in adjusting when the equipment is installed with a non-reference plane in the prior art is solved, and efficient and accurate motion accuracy detection in a narrow space is achieved.
Patent Information
- Application Number
- CN202421983754.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The prior art is difficult to quickly and accurately adjust the relative position of the measuring device and the measured part when the equipment is installed with a non-reference plane. Especially when the internal structure of the equipment is complex, it is difficult to adjust the relative position of the existing measuring device and the space occupies a large and not portable space.
A linear motion accuracy detection device is provided, including a measuring unit with positioning function, an adjustment unit and a fixing seat. The adjustment unit adopts a flexible adjustment rod, a horizontal adjustment assembly and a vertical adjustment assembly, and realizes precise adjustment through a two-stage gear structure and a driving motor.
It realizes the rapid and accurate detection of equipment movement accuracy in a narrow space, improves detection efficiency and accuracy, is suitable for the detection of complex structures inside the equipment, and the device is small in size and easy to carry.
Smart Images
Figure CN222964871U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motion detection, and particularly relates to a linear motion precision detection device and a focused ultrasound treatment device. Background Art
[0002] When carrying out machining and manufacturing, the precision control of mechanical equipment is crucial. Only by controlling the mechanical motion within a certain error range can the quality stability of the machined parts be ensured. To reduce mechanical errors, precision detection is required during mechanical design to control the mechanical motion within a certain error range.
[0003] Currently, when measuring the motion precision (single-step error, cumulative error, return error) of a three-axis moving part, the prior art proposes to set up horizontal and vertical indicating devices on the measuring device to adjust the relative position of the measuring device, and then control the relative movement of the moving part. The single-step error, cumulative error, and return error of the corresponding moving part are measured through the change in the readings of a dial indicator / micrometer. After these errors are measured, it is determined whether they meet the requirements by comparing with the standard requirements. If they do not meet the requirements, compensation can be made by modifying the system parameters according to the measured errors.
[0004] However, when the device under test is installed on a non-reference plane, it is impossible to adjust the measuring device horizontally and vertically to the reference plane to adjust the relative position between the measuring device and the part under test. If the relative horizontal and vertical positions of the part under test are adjusted first, it is too time-consuming. Moreover, the existing measuring device requires a large amount of space, is inconvenient to adjust the relative position and is not easy to carry. In particular, when the internal structure of the device under test is complex, it is very difficult to adjust the relative position of the existing measuring device. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a linear motion precision detection device, which is small in size, convenient to carry, suitable for narrow spaces inside the device, and can effectively improve the test precision.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] In a first aspect, the utility model provides a linear motion precision detection device, including: a measuring unit with a positioning function, an adjusting unit, and a fixed seat;
[0008] Wherein, the adjusting unit includes a horizontal adjusting component, a vertical adjusting component, and a flexible adjusting rod;
[0009] The first driven gear of the vertical adjusting component is connected to the measuring unit through a first rotating shaft, and the first driven gear drives the first rotating shaft to rotate, thereby driving the measuring unit to move up and down in the vertical plane;
[0010] One end of the flexible adjusting rod is fixedly connected to the fixed seat, and the second driven gear of the horizontal adjusting assembly is coaxially arranged at the other end of the flexible adjusting rod; the second driven gear of the horizontal adjusting assembly is vertically connected to the first rotating shaft through the second rotating shaft, and the second driven gear drives the second rotating shaft to rotate so as to drive the measuring unit and the vertical adjusting assembly to move left and right in the horizontal plane.
[0011] As a possible implementation manner, the vertical adjusting assembly further includes a first driving motor, a first speed reducer and a first active speed change gear set for driving the first driven gear to rotate, and the output gear of the first active speed change gear set meshes with the first driven gear.
[0012] As a possible implementation manner, the horizontal adjusting assembly further includes a second driving motor, a second speed reducer and a second active speed change gear set for driving the second driven gear to rotate, and the output gear of the second active speed change gear set meshes with the second driven gear.
[0013] As a possible implementation manner, the measuring unit with a positioning function includes: a laser rangefinder, a micrometer, a display screen for indicating values and a housing;
[0014] The laser rangefinder and the micrometer are arranged inside the housing; the display screen for indicating values is arranged on the mounting hole of the housing.
[0015] As a possible implementation manner, the laser rangefinder is a three-point laser rangefinder; the laser emission port of the three-point laser rangefinder is parallel to the test rod of the micrometer.
[0016] As a possible implementation manner, the display screen for indicating values is electrically connected to the laser rangefinder and is used for displaying the indicated value measured by the laser rangefinder.
[0017] As a possible implementation manner, the fixed seat is a magnetic fixed seat.
[0018] In a second aspect, the present utility model provides a focused ultrasound treatment device, and uses the linear motion accuracy detection device provided in the first aspect to detect the motion accuracy of the focused ultrasound treatment device in the X-axis, Y-axis, and Z-axis directions.
[0019] Compared with the prior art, the present utility model has the following effects:
[0020] 1. The linear motion accuracy detection device provided by the present utility model integrates the positioning function and the measurement function in a unit structure. The overall structure is simple, the volume is small, it is convenient to carry and use, and the motion accuracy of the device to be measured can be detected in a narrow space.
[0021] 2. The linear motion accuracy detection device provided by the present utility model combines rough adjustment with a flexible adjusting rod and fine adjustment with a horizontal adjustment component and a vertical adjustment component, which can accurately adjust the relative position between the detection device and the component to be measured, improve the detection efficiency and ensure the detection accuracy, and effectively reduce the measurement error.
[0022] 3. The linear motion accuracy detection device provided by the present utility model adopts a two-stage gear structure for both the vertical adjustment component and the horizontal adjustment component to achieve angle adjustment of the device in the vertical and horizontal directions. The reduction ratio in each direction can reach 9, and the adjustment accuracy is relatively high.
[0023] 4. The linear motion accuracy detection device provided by the present utility model uses a three-point laser rangefinder to detect the position error in the three-axis directions. Without changing the position of the device, it can determine whether the linear accuracy of the component to be measured in any direction meets the requirements, with high usability and better detection functions.
[0024] 5. The linear motion accuracy detection device provided by the present utility model can select dial indicators with different accuracies for detection according to actual needs, and is applicable to various detection scenarios with different accuracy requirements.
[0025] 6. The linear motion accuracy detection device provided by the present utility model adopts a magnetic fixing seat, and the fixing position of the device can be flexibly selected during detection. Especially when the internal structure of the equipment to be measured is relatively complex, the usability of using this device is higher. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.
[0027] Figure 1 It is a structural diagram of the linear motion accuracy detection device provided by the embodiment of the present utility model;
[0028] Figure 2 It is a schematic diagram of the installation positions of the vertical adjustment component and the horizontal adjustment component in the embodiment of the present utility model;
[0029] Figure 3 It is a schematic diagram of the gear structure of the vertical adjustment component in the embodiment of the present utility model;
[0030] Figure 4 It is a schematic diagram of the gear structure of the horizontal adjustment component in the embodiment of the present utility model;
[0031] Figure 5 It is a structural diagram of the measuring unit with a positioning function in the embodiment of the present utility model;
[0032] Figure 6 This is a schematic diagram for detecting the linear motion accuracy inside a focused ultrasound treatment device by applying the present utility model in an embodiment of the present utility model.
[0033] Reference numerals
[0034] 1 - Measuring unit with positioning function, 10 - Laser rangefinder, 11 - Dial indicator, 110 - Test rod, 12 - Indication display screen, 13 - Housing;
[0035] 2 - Adjusting unit, 20 - Horizontal adjusting assembly, 200 - Second rotating shaft, 201 - Second driving motor, 202 - Second reducer, 203 - Second active speed-changing gear set, 2030 - Output gear of the second active speed-changing gear set, 204 - Second driven gear;
[0036] 21 - Vertical adjusting assembly, 210 - First rotating shaft, 211 - First driving motor, 212 - First reducer, 213 - First active speed-changing gear set, 2130 - Output gear of the first active speed-changing gear set, 214 - First driven gear, 22 - Flexible rod;
[0037] 3 - Fixed seat. Detailed implementation manners
[0038] For the convenience of clearly describing the technical solutions of the embodiments of the present utility model, in the embodiments of the present utility model, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and effects. For example, the first threshold and the second threshold are only used to distinguish different thresholds, and do not limit their sequence. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and execution order, and terms such as "first" and "second" do not necessarily limit being different.
[0039] It should be noted that in the present utility model, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present utility model should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, using words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.
[0040] In the present utility model, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural. The character " / " generally represents an "or" relationship between the associated objects before and after. "At least one (item)" or its similar expression refers to any combination of these items, including any combination of single item (s) or plural items (s). For example, at least one (item) of a, b, or c can represent: a, b, c, the combination of a and b, the combination of a and c, the combination of b and c, or the combination of a, b, and c, where a, b, and c can be single or multiple.
[0041] Currently, when measuring the motion accuracy of a three-axis moving component, the prior art proposes to set up horizontal and vertical indicating devices on the measuring device to adjust the relative position of the measuring device, and then control the relative movement of the moving component. The single-step error, cumulative error, and return error of the corresponding moving component are measured through the reading change of a dial indicator / micrometer. However, when the device under test is installed on a non-reference plane, the relative position between the measuring device and the component under test cannot be adjusted by adjusting the measuring device to be horizontal and perpendicular to the reference plane. If the relative horizontal and vertical positions of the component under test are adjusted first, it will be too time-consuming. Moreover, the existing measuring device requires a large amount of space, is inconvenient to adjust the relative position and not easy to carry. In particular, when the internal structure of the device under test is complex, it is very difficult to adjust the relative position of the existing measuring device. In view of this, the present utility model provides a linear motion accuracy detection device, which is small in size, easy to carry, suitable for use in a narrow space inside the device, and can effectively improve the test accuracy.
[0042] In a first aspect, the present utility model provides a linear motion accuracy detection device, see Figure 1 , including: a measuring unit 1 with a positioning function, an adjusting unit 2, and a fixed seat 3;
[0043] See Figure 1 , the adjusting unit 2 includes a horizontal adjusting component 20, a vertical adjusting component 21, and a flexible adjusting rod 22; one end of the flexible adjusting rod 22 is fixedly connected to the fixed seat 3.
[0044] As an example, the flexible adjusting rod is a flexible universal adjusting rod. Exemplarily, the flexible adjusting rod can be a magnesium alloy rod, a carbon alloy rod, etc. Using a flexible adjusting rod can, on the one hand, flexibly adjust the direction by 360°, improving the detection efficiency; on the other hand, the flexible adjusting rod has good load-bearing performance and can fixedly support the measuring unit with a positioning function at a pre-adjusted position.
[0045] See Figure 2, the first driven gear of the vertical adjustment component 21 is connected to the measuring unit 1 through the first rotating shaft 210. The first driven gear drives the first rotating shaft to rotate, thereby driving the measuring unit 1 to move up and down in the vertical plane.
[0046] See Figure 3 , as a possible implementation, the vertical adjustment component 21 further includes a first driving motor 211, a first reducer 212, and a first active speed-changing gear set 213 for driving the first driven gear to rotate. The output gear 2130 of the first active speed-changing gear set 213 meshes with the first driven gear 214.
[0047] As an example, the first driving motor 211 and the first reducer 212 included in the vertical adjustment component are fixed on the same shaft. The first reducer 212 is implemented by a small gear, and the first reducer gear is the same size as the small gear in the first active speed-changing gear set. The first active speed-changing gear set 213 is composed of two-stage gears with a circumference ratio of 3:1, and the two-stage gears are fixedly connected by a shaft. The first reducer 212 meshes with the large gear in the first active speed-changing gear set 213. The small gear in the first active speed-changing gear set 213, that is, the output gear 2130, meshes with the first driven gear 214, and the circumference ratio of the output gear 2130 to the first driven gear 214 is 1:3.
[0048] During adjustment, the first driving motor drives the large gear in the first active speed-changing gear set to rotate through the first reducer to achieve primary deceleration; the small gear in the first active speed-changing gear set drives the first driven gear to rotate to achieve secondary deceleration; after two-stage deceleration, for every nine rotations of the first driving motor, the first driven gear rotates one circle; the first driven gear is coaxially and fixedly connected to the first rotating shaft, thereby driving the first rotating shaft to rotate one circle.
[0049] See 1 to Figure 2 , the second driven gear of the horizontal adjustment component 20 is coaxially arranged at the other end of the flexible adjustment rod 22; the second driven gear of the horizontal adjustment component 20 is vertically connected to the first rotating shaft 210 through the second rotating shaft 200. The second driven gear drives the second rotating shaft 200 to rotate, thereby driving the measuring unit 1 and the vertical adjustment component 21 to move left and right in the horizontal plane.
[0050] See Figure 4 , as a possible implementation, the horizontal adjustment component 20 further includes a second driving motor 201, a second reducer 202, and a second active speed-changing gear set 203 for driving the second driven gear to rotate. The output gear 2030 of the second active speed-changing gear set 203 meshes with the second driven gear 204.
[0051] As an example, the second drive motor 201 and the second speed reducer 202 included in the horizontal adjustment assembly are fixed on the same shaft. The second speed reducer is implemented by a pinion gear, and the gear of the second speed reducer is the same size as the pinion gear in the second active transmission gear set. The second active transmission gear set 203 is composed of two-stage gears with a circumference ratio of 3:1, and the two-stage gears are fixedly connected by a shaft. The second speed reducer 202 meshes with the large gear in the second active transmission gear set 203. The small gear in the second active transmission gear set 203, that is, the output gear 2030, meshes with the second driven gear 204, and the circumference ratio of the output gear 2030 to the second driven gear 204 is 1:3.
[0052] During adjustment, the second drive motor drives the large gear in the second active transmission gear set to rotate through the second speed reducer to achieve primary speed reduction; the small gear in the second active transmission gear set drives the second driven gear to rotate to achieve secondary speed reduction; after two-stage speed reduction, for every nine rotations of the second drive motor, the second driven gear rotates one circle; the second driven gear is fixedly connected to the second rotating shaft coaxially, thereby driving the second rotating shaft to rotate one circle.
[0053] The adjustment unit is used to adjust the relative position between the present invention and the measured component. During use, first adjust the bending and rotation angles of the flexible rod to achieve rough adjustment of the relative position between the present detection device and the measured component; then further adjust the vertical adjustment assembly and the horizontal adjustment assembly to perform fine adjustment on the relative position between the present detection device and the measured component. The combination of rough adjustment and fine adjustment achieves precise positioning, which can not only ensure the detection accuracy but also improve the detection efficiency.
[0054] See Figure 5 , as a possible implementation manner, the measuring unit 1 with a positioning function includes: a laser rangefinder 10, a micrometer 11, a display screen 12, and a housing 13; the laser rangefinder 10 and the micrometer 11 are arranged inside the housing 13; the display screen 12 is arranged on the mounting hole of the housing 13.
[0055] As a possible implementation manner, the display screen 12 is electrically connected to the laser rangefinder 10 and is used to display the value measured by the laser rangefinder 10.
[0056] The micrometer itself also has a display screen for displaying the value measured by the micrometer. The present invention uses a housing to install and fix the laser rangefinder, the display screen for displaying the value of the laser rangefinder, and the micrometer together, which can not only simplify the device structure, reduce the volume of the entire device, but also facilitate reading the laser measurement value and the micrometer measurement value respectively.
[0057] In this utility model, a dial indicator is used to measure the linear motion accuracy of the component to be measured and display the value on the display screen of the dial indicator itself. The dial indicator can be selected according to the accuracy requirements and is applicable to detection scenarios with different accuracy requirements.
[0058] As a possible implementation, the laser rangefinder 10 is a three-point laser rangefinder; the laser emission port of the three-point laser rangefinder is parallel to the test rod 110 of the dial indicator 11.
[0059] As an example, the three-point laser rangefinder uses three laser ranging modules to measure and feedback the position errors of this detection device and the component to be measured in the X-axis, Y-axis, and Z-axis directions respectively. According to the data feedback by the indication display screen, the position of the measuring unit with positioning function is adjusted by the cooperation of rough adjustment with a flexible adjusting rod and fine adjustment with a horizontal adjusting component and a vertical adjusting component. Even if the device is installed on a non-reference plane, the relative position of the detection device and the component to be measured can be adjusted according to the parameters. The laser emission port of the laser rangefinder is arranged parallel to the test rod of the dial indicator, which can ensure the accuracy of subsequent measurements.
[0060] The positioning function and measuring function of this utility model are integrated in a unit structure. The overall structure is relatively simple, easy to carry and occupies a small space, and can complete the motion accuracy detection of the device to be measured in a narrow space. Moreover, this utility model respectively uses a vertical adjusting component and a horizontal adjusting component to adjust the angles of the measuring unit with positioning function in the vertical and horizontal directions, which is convenient to operate and makes the adjustment angle more accurate.
[0061] As a possible implementation, the fixed seat 3 is a magnetic fixed seat.
[0062] Exemplarily, the magnetic fixed seat can be a fixed seat made of magnetic material, or the magnetic function of the fixed seat can be realized by accommodating magnetic components inside the fixed seat.
[0063] Since most equipment is made of metal, using a magnetic fixed seat can adsorb and fix this device at any position of the equipment. Especially when the internal structure of the equipment to be measured is relatively complex, using a magnetic fixed seat can find the fixed position of the device more flexibly. In this utility model, the shape of the magnetic fixed seat is not specifically limited, and using a square, rectangle, circle, or triangle can achieve the purpose of this utility model.
[0064] See Figure 6, which is a schematic diagram for detecting the linear motion accuracy inside a focused ultrasound treatment device. When in use, fix the magnetic fixing base at an appropriate position below the device to be measured. First, roughly adjust the relative position between this device and the component to be measured by adjusting the shape of the flexible rod. At the same time, ensure that the flexible rod does not affect the motion accuracy detection. Make the contact head of the dial indicator test rod contact the component to be measured, turn on the laser rangefinder, and based on the parameter feedback of the indication display screen, finely adjust the vertical adjustment component and the horizontal adjustment component until the three-axis values displayed on the indication display screen are the same. At this time, the test end and the tested end are relatively perpendicular. Start the component to be measured to move in a certain direction, observe the change in the indication value on the display screen of the dial indicator, and compare it with the theoretical displacement change value of the component to be measured to obtain the single-step error, return error, and cumulative error, so as to determine whether the linear motion accuracy of the component to be measured meets the requirements.
[0065] In a second aspect, the present invention provides a focused ultrasound treatment device, and uses the linear motion accuracy detection device provided in the first aspect to detect the motion accuracy of this focused ultrasound treatment device in the X-axis, Y-axis, and Z-axis directions.
[0066] Although the present invention has been described in conjunction with various embodiments herein, however, in the process of implementing the claimed invention, those skilled in the art can understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure content, and the like. In the specification, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude a plurality of situations. A single processor or other unit can implement several functions listed in the specification. Certain measures are described in different embodiments, but this does not mean that these measures cannot be combined to produce good results.
[0067] Although the present invention has been described in conjunction with specific features and their embodiments, obviously, various modifications and combinations can be made to it without departing from the spirit and scope of the present invention. Accordingly, this specification and the drawings are merely exemplary descriptions of the present invention and are considered to have covered any and all modifications, variations, combinations, or equivalents within the scope of the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the present invention and its equivalent technologies, the present invention also intends to include these changes and modifications.
Claims
1. A linear motion accuracy detection device, characterized in that: include: A measuring unit, an adjusting unit and a fixing seat with positioning function; wherein the adjusting unit comprises a horizontal adjusting component, a vertical adjusting component and a flexible adjusting rod; The first driven gear of the vertical adjustment assembly is connected to the measuring unit via a first rotating shaft, and the first driven gear drives the first rotating shaft to rotate, thereby driving the measuring unit to move up and down on the vertical plane; One end of the flexible adjustment rod is fastened to the fixed seat, and the second driven gear of the horizontal adjustment component is coaxially arranged at the other end of the flexible adjustment rod; the second driven gear of the horizontal adjustment component is vertically connected to the first rotating shaft through the second rotating shaft, and the second driven gear drives the second rotating shaft to rotate, thereby driving the measuring unit and the vertical adjustment component to move left and right in the horizontal plane.
2. The linear motion accuracy detection device according to claim 1, characterized in that: The vertical adjustment assembly further includes a first driving motor, a first speed reducer and a first active speed-changing gear set for driving the first driven gear to rotate, wherein an output gear of the first active speed-changing gear set is meshed with the first driven gear.
3. The linear motion accuracy detection device according to claim 1, characterized in that: The level adjustment assembly further comprises a second driving motor, a second speed reducer and a second active speed change gear set for driving the second driven gear to rotate, wherein the output gear of the second active speed change gear set is meshed with the second driven gear.
4. The linear motion accuracy detection device according to claim 1, characterized in that: The measuring unit with positioning function comprises: a laser rangefinder, a micrometer, a display screen and a housing; The laser rangefinder and the micrometer are arranged in the shell; and the value indicating display screen is arranged on the mounting hole of the shell.
5. The linear motion accuracy detection device according to claim 4, characterized in that: The laser rangefinder is a three-point laser rangefinder; the laser emission port of the three-point laser rangefinder is parallel to the test rod of the micrometer.
6. The linear motion accuracy detection device according to claim 4, characterized in that: The value display screen is electrically connected to the laser rangefinder and is used to display the value obtained by the laser rangefinder.
7. The linear motion accuracy detection device according to claim 1, characterized in that: The fixing seat is a magnetic fixing seat.
8. A focused ultrasound treatment device, characterized in that: The linear motion accuracy detection device according to any one of claims 1 to 7 is used to detect the motion accuracy of the focused ultrasound treatment device in the X-axis, Y-axis and Z-axis directions.