Measuring device

Abstract

The invention discloses measuring equipment. The measuring equipment comprises a calibration assembly and a measuring mechanism, the calibration assembly comprises a reference plate, at least one shafting calibration mechanism and a calibration switching mechanism. Each shafting calibration mechanism comprises a first calibration mechanism and a second calibration mechanism which are positioned on the first side; the calibration switching mechanism is wound on the outer side of each shafting calibration mechanism on the second side; the calibration switching mechanism is rotated to drive the second calibration mechanism to rotate to a detection position, so that the detection head of the measurement mechanism detects the to-be-detected surface of the second calibration mechanism, and the calibration switching mechanism is rotated to drive the second calibration mechanism to rotate to a non-detection position, so that the detection head of the measurement mechanism detects the to-be-detected surface of the first calibration mechanism. According to the technical scheme of the invention, the size measurement is compatible with one calibration piece, so that only one calibration piece needs to be arranged in the measurement equipment, the overall size of the measurement equipment is reduced, and the manufacturing cost of the measurement equipment is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical measurement, and in particular to a measuring device. Background Art

[0002] The calibration part is an instrument used to calibrate the instrument to be measured. It is designed and manufactured according to the relevant measurement requirements and positions of the customer's workpiece model as a reference part. By measuring this calibration part, the workpiece to be tested can be measured to ensure that the workpiece to be tested can meet the predetermined accuracy and performance requirements in actual applications. Therefore, the measurement accuracy of the calibration part determines the accuracy of the production equipment.

[0003] At present, the measurement of calibration parts is divided into small value measurement and large value measurement. The small value is used to calibrate the zero point of the measurement system, and the large value is used to verify the linearity of the measurement system in the entire measurement range. Therefore, the current calibration parts are also designed separately as: a separate large value calibration part for measuring large values, and a separate small value calibration part for measuring small values. However, for some larger workpieces such as variable boxes, the two simulated large and small value calibration parts will also be very large. It is foreseeable that the volume of the measuring equipment will also increase due to the need to accommodate two large and small value calibration parts at the same time, which leads to a relatively large overall equipment and high manufacturing cost.

[0004] Therefore, how to design a calibration piece and reduce the volume of a measuring device for measuring the calibration piece has become a problem that needs to be solved in the art. Summary of the invention

[0005] In view of this, the present application proposes a measuring device, which includes: a calibration component and a measuring mechanism;

[0006] The calibration assembly includes: a reference plate, at least one shaft system calibration mechanism, and a calibration switching mechanism;

[0007] Each of the shaft system calibration mechanisms is disposed in the reference plate, forming a first side and a second side on both sides of the reference plate;

[0008] Each of the shaft system calibration mechanisms comprises a first calibration mechanism and a second calibration mechanism located on the first side;

[0009] The calibration switching mechanism is wound around the outer side of each of the shaft system calibration mechanisms at the second side;

[0010] Rotating the calibration switching mechanism drives the second calibration mechanism to rotate to a detection position, so that the detection head of the measuring mechanism detects the surface to be measured of the second calibration mechanism, and

[0011] Rotating the calibration switching mechanism drives the second calibration mechanism to rotate to a non-detection position, so that the detection head of the measuring mechanism detects the surface to be measured of the first calibration mechanism.

[0012] Preferably, the surface to be measured of the second calibration mechanism is higher than the surface to be measured of the first calibration mechanism;

[0013] When the second calibration mechanism rotates to the detection position, the surface to be measured of the second calibration mechanism contacts the detection head; when the second calibration mechanism rotates to the non-detection position, the surface to be measured of the first calibration mechanism contacts the detection head.

[0014] Preferably, the first calibration mechanism is in the shape of a circular ring, and the second calibration mechanism is arranged in an inner ring of the first calibration mechanism.

[0015] Further preferably, the shaft system calibration mechanism further comprises: a rotating shaft, a fixed shaft and a pulley;

[0016] The calibration switching mechanism is wound around the outside of the pulley, the pulley is sleeved on the outside of the fixed shaft, the fixed shaft is sleeved on the outside of the rotating shaft, and the rotating shaft passes through the fixed shaft, the reference plate and the second calibration mechanism in sequence from the second side to the first side, so that the calibration switching mechanism drives the second calibration mechanism to rotate.

[0017] Further preferably, the second calibration mechanism includes a calibration block and a connection block;

[0018] The calibration block is non-rigidly arranged in the outer periphery of the connecting block, and the surface to be measured of the calibration block is higher than the surface to be measured of the first calibration mechanism;

[0019] The rotating shaft passes through the connecting block to drive the calibration block and the connecting block to rotate.

[0020] Further preferably, at least one of the shaft system calibration mechanisms further comprises: an adjustment disk, and the calibration switching mechanism comprises: a conveyor belt and an adjustment mechanism;

[0021] The conveyor belt is wound around the outside of each pulley, and the adjustment disk is arranged at the bottom of the rotating shaft and rotates coaxially with the rotating shaft;

[0022] The adjusting mechanism is connected to the adjusting disk, and the second calibration mechanism is driven to rotate through the adjusting mechanism.

[0023] Further preferably, there are multiple shaft system calibration mechanisms, and when the adjustment mechanism controls one shaft system calibration mechanism to rotate, the remaining shaft system calibration mechanisms are driven to rotate synchronously through the conveyor belt.

[0024] Further preferably, the calibration switching mechanism comprises: a conveyor belt tensioning mechanism; the conveyor belt comprises: a clamping block;

[0025] The conveyor belt tensioning mechanism is fixed in the base plate and applies tensioning force to the conveyor belt;

[0026] The clamping block clamps the opening of the conveyor belt to form a closed loop.

[0027] Further preferably, the calibration component further comprises: a sensor;

[0028] The sensor is fixed in the reference plate;

[0029] Rotating the calibration switching mechanism drives the second calibration mechanism to rotate to a detection position, so that the measuring mechanism detects the distance between the surface to be measured of the second calibration mechanism and the sensor and the reference plate, and

[0030] Rotating the calibration switching mechanism drives the second calibration mechanism to rotate to a non-detection position, so that the measuring mechanism detects the distance from the surface to be measured of the first calibration mechanism to the sensor and the reference plate.

[0031] Preferably, the device further comprises: a device frame;

[0032] The calibration component is slidably arranged in the equipment frame;

[0033] The calibration component slides to a calibration position, and the measuring mechanism measures the calibration component.

[0034] The measuring device provided by the present application, the shaft system calibration mechanism includes a first calibration mechanism for measuring small values ​​and a second calibration mechanism for measuring large values. The second calibration mechanism is driven to rotate to a detection position or a non-detection position by rotating the calibration switching mechanism, so that the surface to be detected of the second calibration mechanism replaces or does not replace the surface to be detected of the first calibration mechanism, thereby realizing large value measurement or small value measurement. Under this structure, large and small value measurements are compatible with one calibration component, so that only one calibration component needs to be set in the measuring device, which reduces the overall volume of the measuring device and reduces the manufacturing cost of the measuring device.

[0035] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present application, and the schematic implementation modes and descriptions of the present application are used to explain the present application. In the accompanying drawings:

[0037] Figure 1This is a schematic diagram of the structure of the measuring device in the two states of small value measurement and large value measurement according to the preferred embodiment of the present application;

[0038] Figure 2 This is a schematic diagram of the structure of the calibration component of the preferred embodiment of the present application at a first angle;

[0039] Figure 3 This is a schematic diagram of the structure of the calibration component of the preferred embodiment of the present application at a second angle;

[0040] Figure 4 It is a schematic diagram of the partial structure of the calibration component of the preferred embodiment of the present application at a third angle;

[0041] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the calibration component of the preferred embodiment of the present application.

[0042] Figure numbers: 100-calibration component; 1-reference plate; 2-axis calibration mechanism; 21-first calibration mechanism; 22-second calibration mechanism; 221-calibration block; 222-connecting block; 23-rotating axis; 24-fixed axis; 25-pulley; 26-adjusting disk; 27-adjusting rod; 28-cylinder; 3-calibration switching mechanism; 31-conveyor belt; 32-conveyor belt tensioning mechanism; 4-sensor; 200-measuring mechanism; 300-equipment frame. DETAILED DESCRIPTION

[0043] The technical solution of the present application will be described in detail below with reference to the accompanying drawings and in combination with the implementation modes.

[0044] like Figure 1-5 As shown, the present application provides a measuring device, which includes: a calibration component 100 and a measuring mechanism 200 for measuring the maximum and minimum values ​​of the calibration component 100. Among them, the calibration component 100 includes: a reference plate 1, at least one axis calibration mechanism 2, and a calibration switching mechanism 3. It can be understood that the purpose of providing the calibration component 100 is to form a calibration reference part to replace the workpiece to be detected for measurement. Therefore, the position of each axis calibration mechanism 2 in the calibration component 100 in the reference plate 1, its own size, height and other parameters need to be consistent with the measuring surface of the workpiece to be detected. The measurement of the calibration component 100 by the measuring mechanism 200 is equivalent to the measurement of the workpiece to be detected.

[0045] Each shaft system calibration mechanism 2 in the calibration assembly 100 can be rotatably inserted and fixed in the reference plate 1, forming a first side and a second side on both sides of the reference plate 1. In addition, the first side of the shaft system calibration mechanism 2 corresponds to the detection head of the measuring mechanism 200, and each shaft system calibration mechanism 2 includes a first calibration mechanism 21 and a second calibration mechanism 22 located on the first side and corresponding to the detection head. The first calibration mechanism 21 is used for small value measurement, and the second calibration mechanism 22 is used for large value measurement. Small value measurement is used to calibrate the zero point of the measurement system, and large value measurement is used to verify the linearity of the measurement system in the entire measurement range.

[0046] The calibration switching mechanism 3 is wound around the outside of each shaft system calibration mechanism 2 on the second side, and the rotation of the calibration switching mechanism 3 drives each second calibration mechanism 22 to rotate. The rotatable positions of the second calibration mechanism 22 include a detection position and a non-detection position. The detection direction of the detection head of the measuring mechanism 200 corresponds to the detection position. When the calibration switching mechanism 3 is rotated to drive each second calibration mechanism 22 to rotate to the detection position, the detection head of the measuring mechanism 200 detects the surface to be measured of each second calibration mechanism 22, thereby realizing large value measurement; when the calibration switching mechanism 3 is rotated to drive the second calibration mechanism 22 to rotate to the non-detection position, the detection head of the measuring mechanism 200 detects the surface to be measured of each first calibration mechanism 21, thereby realizing small value measurement.

[0047] Based on this, in the present application, there is no need to set up two independent size calibration parts in the measuring device. Instead, the size measurement function is integrated into a calibration component so that the calibration component is compatible with large value measurement and small value measurement functions, thereby reducing the volume of the measuring device of the measuring calibration part.

[0048] Specifically, the surface to be measured of the second calibration mechanism 22 is higher than the surface to be measured of the first calibration mechanism 21. When the second calibration mechanism 22 is in the non-detection position, since there is no second calibration mechanism 22 at the detection position, its highest surface that can contact the detection head of the measuring mechanism 200 is the surface to be measured of the first calibration mechanism 21. At this time, it is a small value measurement achieved by the first calibration structure 21. When the second calibration mechanism 22 rotates to the detection position, the surface to be measured of the second calibration mechanism 22 at the detection position is higher than the surface to be measured of the first calibration mechanism 21. Therefore, the surface to be measured of the second calibration mechanism 22 will replace the surface to be measured of the first calibration mechanism 21 to contact the detection head of the measuring mechanism 200. At this time, it is a large value measurement achieved by the second calibration structure 21, thereby achieving a situation where a large value replaces a small value. Of course, when measuring large and small values, the detection head of the measuring mechanism 200 needs to rise or fall as needed, and use the loading force of the detection head of the measuring mechanism 200 to achieve the fit of the large and small value surfaces to be measured.

[0049] In a specific embodiment, the first calibration mechanism 21 is annular, and its surface to be measured is the surface of the annular ring, and the second calibration mechanism 22 is arranged in the inner ring of the first calibration mechanism 21. The first calibration mechanism 21 and the second calibration mechanism 22 are fixed in the reference plate 1 by gravity or other limiting mechanisms, which are not limited in this application, but it is necessary to ensure that the first calibration mechanism 21 and the second calibration mechanism 22 will not be offset in height and position in the reference plate 1. In addition, the second calibration mechanism 22 includes: a calibration block 221 and a connecting block 222. The calibration block 221 can be multiple, non-rigidly arranged in the outer periphery of the connecting block 222, and the surface to be measured of the calibration block 221 is higher than the surface to be measured of the first calibration mechanism 21, and the surface to be measured of the second calibration mechanism 22 is the surface of the calibration block 221. The non-rigid connection here can achieve force-free conduction changes between the calibration block 221 and the connecting block 222.

[0050] In some preferred embodiments, rotating the second calibration mechanism 22 will not cause the first calibration mechanism 21 to rotate. The detection position and the non-detection position are both fixed positions. When the second calibration mechanism 22 rotates in both positive and negative directions by a fixed angle, it can switch between the detection position and the non-detection position. Alternatively, the detection position is a fixed position, and all other positions are non-detection positions. The second calibration mechanism 22 can be continuously rotated and adjusted, and only when it is rotated to the detection position can it achieve large value measurement.

[0051] More specifically, with respect to the rotation mode of the calibration switching mechanism 3 driving the second calibration mechanism 2, the shaft system calibration mechanism 2 further includes: a rotating shaft 23, a fixed shaft 24 and a pulley 25. The calibration switching mechanism 3 further includes: a conveyor belt 31. The conveyor belt 31 is wound around the outside of each pulley 25, the pulley 25 is sleeved on the outside of the fixed shaft 24, the fixed shaft 24 is sleeved on the outside of the rotating shaft 23, and the rotating shaft 23 is sequentially penetrated by the fixed shaft 24, the reference plate 1 and the connecting block 222 from the second side to the first side, so that the conveyor belt 31 drives the pulley 25, the fixed shaft 24, the rotating shaft 23, the connecting block 222 and the calibration block 221 to rotate coaxially.

[0052] Moreover, the shaft system calibration mechanism 2 in the present application can be multiple, and at least one shaft system calibration mechanism 2 includes: an adjustment disk 26. Correspondingly, the calibration switching mechanism 3 also includes: an adjustment mechanism. The adjustment disk 26 is arranged at the bottom of the rotating shaft 23 and rotates coaxially with the rotating shaft 23. The adjustment mechanism is connected to the adjustment disk 26. The adjustment mechanism drives the adjustment disk 26, the rotating shaft 23, the fixed shaft 24, the pulley 25, the conveyor belt 31, the connecting block 222 and the calibration block 221 to rotate, so that the second calibration mechanism 22 rotates as a whole. When the adjustment mechanism controls one shaft system calibration mechanism 2 to rotate, the conveyor belt 31 drives the remaining shaft system calibration mechanisms 2 to rotate synchronously.

[0053] In a specific embodiment, the adjustment mechanism first controls the rotation of the adjustment disk 26 of an axis system calibration mechanism 2, and the adjustment disk 26 drives the pulley 25 in the axis system calibration mechanism 2 to rotate. At the same time, the rotational force is transmitted to the pulleys 25 in the remaining axis system calibration mechanisms 2 through the conveyor belt 31 wound around the outside of the pulley 25 to rotate them, thereby causing all the second calibration mechanisms 22 to rotate synchronously.

[0054] More specifically, the adjustment mechanism may be an adjustment rod 27 and / or a cylinder 28. The adjustment rod 27 and / or the cylinder 28 are connected to the adjustment disk 26, and the second calibration mechanism 22 is driven to rotate by manual or automatic control of the adjustment rod 27 and / or the cylinder 28.

[0055] In addition, to ensure the effective movement of the conveyor belt 31, the calibration switching mechanism 3 further includes: a conveyor belt tensioning mechanism 32. The conveyor belt tensioning mechanism 32 can be multiple, all fixed in the reference plate 1, and apply tensioning force to the conveyor belt 31 from multiple directions.

[0056] In addition, the conveyor belt 31 includes a clamp (not shown in the figure). Since the conveyor belt 31 does not need to rotate a full circle, the opening in the conveyor belt 31 can be clamped by the clamp to form a closed loop of the conveyor belt 31. The advantage of this is that the conveyor belt 31 of the same standard can be purchased in batches, and the assembler can cut the required length of the conveyor belt 31 in real time to avoid different circumferences of the conveyor belt 31 due to different hole systems each time, so as to achieve standardization of parts.

[0057] Regarding the measurement calibration method of the measuring mechanism 200, the calibration component 100 also includes: a sensor 4. The sensor 4 is fixed in the reference plate 1 and can be used for both large value measurement and small value measurement. The rotary calibration switching mechanism 3 drives the second calibration mechanism 22 to rotate to the detection position, so that the measuring mechanism 200 detects the distance between the surface to be measured of the second calibration mechanism 22 and the sensor 4 and the reference plate 1 to achieve large value measurement; and the rotary calibration switching mechanism 3 drives the second calibration mechanism 22 to rotate to the non-detection position, so that the measuring mechanism 200 detects the distance between the surface to be measured of the first calibration mechanism 21 and the sensor 4 and the reference plate 1 to achieve small value measurement.

[0058] In order to facilitate the adjustment of the measurement state, the measuring device in the present application further includes: a device frame 300; and a calibration component 100 slidably disposed in the device frame. When the calibration component 100 slides to the calibration position in the device frame 300, its position enables the measuring mechanism 200 to measure the calibration component 100. When the calibration component 100 does not need to be measured, the calibration component 100 can be pushed back to the position to be calibrated in the device frame 300.

[0059] The measuring device provided in the present application, the shaft calibration mechanism includes a first calibration mechanism for measuring small values ​​and a second calibration mechanism for measuring large values. The second calibration mechanism is driven to rotate to a detection position or a non-detection position by rotating the calibration switching mechanism, so that the surface to be detected of the second calibration mechanism replaces or does not replace the surface to be detected of the first calibration mechanism, thereby realizing large value measurement or small value measurement. Under this structure, large and small value measurements are compatible with one calibration component, so that only one calibration component needs to be set in the measuring device, which reduces the overall volume of the measuring device and reduces the manufacturing cost of the measuring device.

[0060] The preferred embodiments of the present application are described in detail above; however, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, a variety of simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the protection scope of the present application.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0062] In addition, the various implementation modes of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A measuring device, characterized in that: The measuring device comprises: a calibration component (100) and a measuring mechanism (200); The calibration component (100) comprises: a reference plate (1), at least one shaft system calibration mechanism (2), and a calibration switching mechanism (3); Each of the shaft system calibration mechanisms (2) is disposed in the reference plate (1), forming a first side and a second side on both sides of the reference plate (1); Each of the shaft system calibration mechanisms (2) comprises a first calibration mechanism (21) and a second calibration mechanism (22) located on the first side; The calibration switching mechanism (3) is wound around the outer side of each of the shaft system calibration mechanisms (2) on the second side; Rotating the calibration switching mechanism (3) drives the second calibration mechanism (22) to rotate to a detection position, so that the detection head of the measuring mechanism (200) detects the surface to be measured of the second calibration mechanism (22); and The calibration switching mechanism (3) is rotated to drive the second calibration mechanism (22) to rotate to a non-detection position, so that the detection head of the measuring mechanism (200) detects the surface to be measured of the first calibration mechanism (21).

2. The device according to claim 1, characterized in that The surface to be measured of the second calibration mechanism (22) is higher than the surface to be measured of the first calibration mechanism (21); When the second calibration mechanism (22) rotates to a detection position, the surface to be measured of the second calibration mechanism (22) contacts the detection head; when the second calibration mechanism (22) rotates to a non-detection position, the surface to be measured of the first calibration mechanism (21) contacts the detection head.

3. The device according to claim 1, characterized in that The first calibration mechanism (21) is in the shape of a circular ring, and the second calibration mechanism (22) is arranged in an inner ring of the first calibration mechanism (21).

4. The device according to claim 1, characterized in that The shaft system calibration mechanism (2) further comprises: a rotating shaft (23), a fixed shaft (24) and a pulley (25); The calibration switching mechanism (3) is wound around the outside of the pulley (25), the pulley (25) is sleeved on the outside of the fixed shaft (24), the fixed shaft (24) is sleeved on the outside of the rotating shaft (23), and the rotating shaft (23) passes through the fixed shaft (24), the reference plate (1) and the second calibration mechanism (22) in sequence from the second side to the first side, so that the calibration switching mechanism (3) drives the second calibration mechanism (22) to rotate.

5. The device according to claim 4, characterized in that The second calibration mechanism (22) comprises a calibration block (221) and a connection block (222); The calibration block (221) is non-rigidly arranged in the outer periphery of the connection block (222), and the surface to be measured of the calibration block (221) is higher than the surface to be measured of the first calibration mechanism (21); The rotating shaft (23) is disposed in the connecting block (222) to drive the calibration block (221) and the connecting block (222) to rotate.

6. The device according to claim 4, characterized in that At least one of the shaft system calibration mechanisms (2) further comprises: an adjustment disk (26); and the calibration switching mechanism (3) comprises: a conveyor belt (31) and an adjustment mechanism; The conveyor belt (31) is wound around the outside of each pulley (25), and the adjustment disk (26) is arranged at the bottom of the rotating shaft (23) and rotates coaxially with the rotating shaft (23); The adjustment mechanism is connected to the adjustment disk (26), and the second calibration mechanism (22) is driven to rotate by the adjustment mechanism.

7. The device according to claim 6, characterized in that There are multiple shaft system calibration mechanisms (2), and when the adjustment mechanism controls one shaft system calibration mechanism (2) to rotate, the remaining shaft system calibration mechanisms (2) are driven to rotate synchronously through the conveyor belt (31).

8. The device according to claim 6, characterized in that The calibration switching mechanism (3) comprises: a conveyor belt tensioning mechanism (32); the conveyor belt (31) comprises: a clamping block; The conveyor belt tensioning mechanism (32) is fixed in the base plate (1) and applies a tensioning force to the conveyor belt (31); The clamping block clamps the opening of the conveyor belt (31) so that the conveyor belt (31) forms a closed loop.

9. The device according to any one of claims 1 to 8, characterized in that: The calibration component also includes: a sensor (4); The sensor (4) is fixed in the reference plate (1); Rotating the calibration switching mechanism (3) drives the second calibration mechanism (22) to rotate to a detection position, so that the measuring mechanism (200) detects the distance between the surface to be measured of the second calibration mechanism (22) and the sensor (4) and the reference plate (1); and Rotating the calibration switching mechanism (3) drives the second calibration mechanism (22) to rotate to a non-detection position, so that the measuring mechanism (200) detects the distance between the surface to be measured of the first calibration mechanism (21) and the sensor (4) and the reference plate (1).

10. The device according to claim 1, characterized in that The device also includes: a device frame (300); The calibration component (100) is slidably disposed in the device frame (300); The calibration component (100) slides to a calibration position, and the measuring mechanism (200) measures the calibration component (100).

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