CN110307818B - Step plane distance and hole depth measuring device - Google Patents
Step plane distance and hole depth measuring device Download PDFInfo
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- CN110307818B CN110307818B CN201910543366.6A CN201910543366A CN110307818B CN 110307818 B CN110307818 B CN 110307818B CN 201910543366 A CN201910543366 A CN 201910543366A CN 110307818 B CN110307818 B CN 110307818B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/18—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention belongs to the technical field of machining measuring devices, and particularly relates to a step plane distance and hole depth measuring device which comprises a measuring substrate, a measuring rod, a signal conditioner and a computer, wherein a fixed baffle and a sliding baffle are respectively arranged on two sides of the measuring substrate, the sliding baffle moves close to or far away from the fixed baffle, and a locking assembly for locking and positioning the sliding baffle is arranged on the sliding baffle; a measuring hole penetrates through the measuring substrate, the measuring rod penetrates through the measuring hole in a sliding mode, the sliding direction of the measuring rod is perpendicular to the measuring substrate, the end, close to the fixed baffle, of the measuring rod is a measuring end, and a displacement sensor is arranged at the end, far away from the fixed baffle, of the measuring rod; the signal conditioner is used for receiving the signals transmitted by the displacement sensor, amplifying and filtering the signals, and is electrically connected with the computer through the data processor.
Description
Technical Field
The invention belongs to the technical field of machining measuring devices, and particularly relates to a step plane distance and hole depth measuring device.
Background
With the increasing demand of users, the requirements of some aspects with low measurement requirements, such as the distance between step planes and the hole depth, are also increased in the past, the original measurement requirements of the aspects are not very high, only a traditional measuring device such as a vernier caliper is needed, for example, the vernier caliper can be used for measuring the distance between the step planes and the hole depth, but the precision of the vernier caliper often does not meet the requirements, different operators use the vernier caliper to measure different measurement results, the measurement is also restricted by the structure on a workpiece, the measurement is inconvenient and inefficient, and the measuring device is not suitable for large-batch detection. In order to improve the detection efficiency and reduce the cost, the invention provides the step plane distance and hole depth measuring device which can overcome the existing problems, so that the measurement is more efficient, the operation is simple, the result is accurate, the application range is wider, and the device has a certain market popularization prospect.
Disclosure of Invention
In order to solve the problem that a measuring device for detecting the step plane distance and the hole depth in the prior art is not suitable for large-scale detection, the invention provides a step plane distance and hole depth measuring device.
In order to solve the technical problems, the technical scheme adopted by the invention is that the step plane distance and hole depth measuring device comprises a measuring substrate, a measuring rod, a signal conditioner and a computer, wherein a fixed baffle and a sliding baffle are respectively arranged on two sides of the measuring substrate, the sliding baffle moves close to or far away from the fixed baffle, and a locking assembly for locking and positioning the sliding baffle is arranged on the sliding baffle; a measuring hole penetrates through the measuring substrate, the measuring rod penetrates through the measuring hole in a sliding mode, the sliding direction of the measuring rod is perpendicular to the measuring substrate, the end, close to the fixed baffle, of the measuring rod is a measuring end, and a displacement sensor is arranged at the end, far away from the fixed baffle, of the measuring rod;
the signal conditioner is used for receiving the signals transmitted by the displacement sensor, amplifying and filtering the signals, and is electrically connected with the computer through the data processor.
Preferably, the number of the measuring holes is two, and the two measuring holes are distributed along the length direction of the fixed baffle. The distance between the two step surfaces and the reference surface can be measured by reducing the moving of the measuring substrate, the measuring operation is simplified, and the measuring efficiency is improved.
Preferably, the measuring rod is in threaded connection with the measuring hole. The measuring rod is convenient to slide and lock and position relative to the measuring substrate, the structure is simple and reliable, the operation is convenient, and the cost is low.
Furthermore, a dovetail groove is formed in the measuring substrate, and a dovetail sliding block in sliding fit with the dovetail groove extends from the sliding baffle. The sliding precision of the sliding baffle on the measuring substrate is improved, and the measuring precision of the measuring device is improved.
Further, the locking assembly comprises a locking screw, the locking screw is in threaded connection with the sliding baffle, and the locking screw faces to the sliding direction of the sliding baffle. The locking assembly is simple and reliable in mechanism, convenient to operate and low in cost.
Has the advantages that: the step plane distance and hole depth measuring device utilizes a new technology detection mode of a displacement sensor, a signal conditioner, a data processor and the like, wherein the information of the displacement sensor is processed by the signal conditioner and the data processor, so that the step plane distance and the hole depth can be detected; according to the step plane distance and hole depth measuring device, due to the adoption of the sensing technology, the measurement is more efficient, the operation is simpler, and more time is saved; according to the step plane distance and hole depth measuring device, when the step planes to be measured are arranged at the two ends of the reference plane, the distance between the two step planes relative to the reference plane can be measured by reducing the times of disassembling the measuring substrate, so that the measuring efficiency is greatly improved, and the measuring time is saved; when the depth of the through hole or the stepped hole is measured, the original measuring device is only required to be properly adjusted to measure, the measuring device is not required to be replaced again, the operation process is greatly simplified, the measurement is more efficient, and meanwhile, the cost is also reduced.
Drawings
FIG. 1 is a schematic perspective view of a step plane distance and hole depth measuring device according to the present invention;
FIG. 2 is a schematic view of another angle of the step plane distance measuring device for measuring the step plane distance according to the present invention;
FIG. 3 is a schematic perspective view of a hole depth measuring apparatus for measuring a step plane distance and a hole depth according to the present invention;
FIG. 4 is a schematic cross-sectional view of the step plane distance and hole depth measuring device of the present invention when measuring the hole depth;
FIG. 5 is a schematic view of the measuring principle of the step plane distance and hole depth measuring device of the present invention;
in the figure: 1. the measuring device comprises a measuring substrate, 11, a measuring hole, 12, a dovetail groove, 2, a fixed baffle, 3, a sliding baffle, 31, a dovetail slide block, 32, a locking screw, 4, a measuring rod, 41, a measuring end, 5, a moving sensor, 6, a workpiece, 61, a reference plane, 62, a step plane, 63, a step hole, 631, a large hole, 632, a small hole, 7, a signal conditioner, 8, a data processor, 9 and a computer.
Detailed Description
Examples
As shown in fig. 1 to 5, a step plane distance and hole depth measuring device includes a measuring substrate 1, a measuring rod 4, a signal conditioner 7 and a computer 9, wherein two sides of the measuring substrate 1 are respectively provided with a fixed baffle 2 and a sliding baffle 3, the sliding baffle 3 moves close to or away from the fixed baffle 2, in order to improve the measurement precision, the measuring substrate 1 is provided with a dovetail groove 12, a dovetail slider 31 in sliding fit with the dovetail groove 12 extends from the sliding baffle 3, the sliding baffle 3 is provided with a locking assembly for locking and positioning the sliding baffle 3, specifically, the locking assembly includes a locking screw 32, the locking screw 32 is in threaded connection with the sliding baffle 3, and the locking screw 32 faces the sliding direction of the sliding baffle 3; the measuring base plate 1 is provided with a measuring hole 11 in a penetrating mode, the measuring rod 4 penetrates through the measuring hole 11 in a sliding mode, the sliding direction of the measuring rod 4 is perpendicular to the measuring base plate 1, the measuring rod 4 is in threaded connection with the measuring hole 11, in order to improve measuring efficiency, the number of the measuring holes 11 is two, the two measuring holes 11 are distributed along the length direction of the fixed baffle plate 2, the measuring end 41 is arranged at one end, close to the fixed baffle plate 2, of the measuring rod 4, and the displacement sensor 5 is arranged at one end, away from the fixed baffle plate 2, of the measuring rod 4;
as shown in fig. 5, the signal conditioner 7 is used for receiving the electrical signal transmitted by the displacement sensor 5, and the signal conditioner 7 is electrically connected with the computer 9 through a data processor 8; specifically, the signal conditioner 7 includes an amplifying circuit and a filtering circuit, and can amplify and filter the electrical signal, the signal conditioner 7 selects an IEPE series signal conditioner, and transmits the conditioned electrical signal to the data processor 8, the input end of the data processor 8 is electrically connected to the output end of the signal conditioner 7, the output end of the data processor 8 is electrically connected to the computer 9, the computer 9 displays the value of the displacement sensor 5, the data processor 8 includes an a/D converter, and the data processor 8 converts the received electrical signal into a digital signal, so that the computer 9 can directly process the received data.
As shown in fig. 1 to 4, the workpiece 6 to be measured of the present embodiment is a convex whole, and includes a reference plane 61 located at a middle protruding position of the workpiece 6 and stepped planes 62 located at recessed positions at two ends of the workpiece 6, a stepped hole 63 penetrates through the workpiece 6, and the stepped hole 63 includes a large hole 631 and a small hole 632 connected in sequence.
The step plane distance and hole depth measuring device comprises the following measuring steps:
(1) as shown in fig. 1 and 2, the distance of the detection step plane 62 from the reference plane 61:
firstly, a workpiece 6 to be detected is placed on a detection platform, a reference plane 61 is upward at the moment, the bottom surface of a measurement substrate 1 is attached to the reference plane 61, a first measurement hole 11 is positioned above the reference plane 61, a fixed baffle 2 is attached to one side of the workpiece 6 to be detected, a sliding baffle 3 is slid towards the fixed baffle 2, when the sliding baffle 3 is attached to the other side of the workpiece 6 to be detected, a locking screw 32 is screwed, and at the moment, the sliding baffle 3 is matched with the fixed baffle 2 to clamp and position the workpiece 6 to be detected;
secondly, screwing the measuring rod 4 downwards, and stopping screwing the measuring rod 4 when the measuring end 41 is contacted with the reference plane 61; loosening the locking screw 32 again to enable the sliding baffle 3 to be separated from the workpiece 6 to be measured, moving the measuring substrate 1 to enable the first measuring hole 11 to be located above the first stepped plane 62, keeping the bottom surface of the measuring substrate 1 attached to the reference plane 61 when the second measuring hole 11 is located above the reference plane 61, attaching the fixed baffle 2 to one side of the workpiece 6 to be measured, attaching the sliding baffle 3 to the other side of the workpiece 6 to be measured, and tightening the locking screw 32, wherein the sliding baffle 3 and the fixed baffle 2 are matched to clamp and position the workpiece 6 to be measured;
thirdly, the measuring rod 4 is continuously screwed downwards, the measuring rod 4 is stopped being screwed when the measuring end 41 is in contact with the first step plane 62, in the process, the displacement sensor 5 continuously sends out an electric signal, the signal conditioner 7 receives the electric signal and then performs amplification and filtering processing, the data processor 8 receives the electric signal and converts the electric signal into a digital signal to be transmitted to the computer 9, the computer 9 continuously obtains and records a new numerical value, and when the measuring end 41 is in contact with the step plane 62, the computer 9 compares and processes the obtained data to obtain the distance from the first step plane 62 to the reference plane 61;
and fourthly, taking the measuring rod 4 out of the first measuring hole 11, screwing the measuring rod into the second measuring hole 11, and repeating the third step and the fourth step to obtain the distance from the second stepped plane 62 to the reference plane 61.
(2) As shown in fig. 3 and 4, the depth of the stepped hole 63 is detected:
firstly, a workpiece 6 to be measured is placed on a detection platform, the end face of a small hole 632 is attached to the measurement platform, the end face of a large hole 631 faces upwards, the top surface of a measurement substrate 1 is attached to the end face of the large hole 631, a fixed baffle 2 faces upwards, and a first measurement hole 11 is located above the end face of the large hole 631;
secondly, screwing the measuring rod 4 downwards, and stopping screwing the measuring rod 4 when the measuring end 41 is contacted with the end face of the large hole 631; then moving the measurement substrate 1 to the position where the first measurement hole 11 is located above the step of the small hole 632;
thirdly, the measuring rod 4 is continuously screwed downwards, the measuring rod 4 is stopped being screwed when the measuring end 41 is in contact with the step position of the small hole 632, in the process, the displacement sensor 5 continuously sends out an electric signal, the signal conditioner 7 receives the electric signal and then performs amplification and filtering processing, the data processor 8 receives the electric signal and converts the electric signal into a digital signal to be transmitted to the computer 9, the computer 9 continuously obtains and records a new numerical value, and when the measuring end 41 passes through the large hole 631 to be in contact with the step position of the small hole 632, the computer 9 compares and processes the obtained data to obtain the depth of the large hole 631;
fourthly, moving the measuring substrate 1 to enable the first measuring hole 11 to be positioned above the small hole 632; and repeating the step (III) until the measuring end 41 sequentially passes through the large hole 631 and the small hole 632 to be contacted with the measuring platform, and comparing and processing the obtained data by the computer 9 to obtain the total depth of the stepped hole 63.
Claims (3)
1. The utility model provides a ladder plane distance and hole depth measuring device which characterized in that: the device comprises a measuring substrate (1), a measuring rod (4), a signal conditioner (7) and a computer (9), wherein a fixed baffle (2) and a sliding baffle (3) are respectively arranged on two sides of the measuring substrate (1), the sliding baffle (3) moves close to or far away from the fixed baffle (2), and a locking assembly for locking and positioning the sliding baffle (3) is arranged on the sliding baffle (3); a measuring hole (11) penetrates through the measuring substrate (1), the measuring rod (4) penetrates through the measuring hole (11) in a sliding mode, the sliding direction of the measuring rod (4) is perpendicular to the measuring substrate (1), a measuring end (41) is arranged at one end, close to the fixed baffle (2), of the measuring rod (4), and a displacement sensor (5) is arranged at one end, far away from the fixed baffle (2), of the measuring rod (4);
the signal conditioner (7) is used for receiving the signals transmitted by the displacement sensor (5) and amplifying and filtering the signals, and the signal conditioner (7) is electrically connected with the computer (9) through a data processor (8);
the number of the measuring holes (11) is two, and the two measuring holes (11) are distributed along the length direction of the fixed baffle (2);
a dovetail groove (12) is formed in the measuring substrate (1), and a dovetail sliding block (31) in sliding fit with the dovetail groove (12) extends from the sliding baffle (3);
when the device is used for detecting the step plane distance of a workpiece (6) to be detected, the workpiece (6) to be detected comprises a reference plane (61) and a step plane (62), firstly, the workpiece (6) to be detected is placed on a detection platform, the reference plane (61) faces upwards at the moment, the bottom surface of a measurement substrate (1) is attached to the reference plane (61), a first measurement hole is positioned above the reference plane (61), a fixed baffle (2) is attached to one side of the workpiece (6) to be detected, a sliding baffle (3) is slid towards the direction of the fixed baffle (2), when the sliding baffle (3) is attached to the other side of the workpiece (6) to be detected, a locking assembly is screwed, and at the moment, the sliding baffle (3) is matched with the fixed baffle (2) to clamp and position the workpiece (6) to be detected; screwing the measuring rod (4) downwards, and stopping screwing the measuring rod (4) when the measuring end (41) is contacted with the reference plane (61); unscrewing the locking assembly, moving the measuring substrate (1) until the first measuring hole is positioned above the stepped plane (62) after the sliding baffle (3) is separated from the workpiece (6) to be measured, keeping the bottom surface of the measuring substrate (1) attached to the reference plane (61) when the second measuring hole is positioned above the reference plane (61), attaching the fixed baffle (2) to one side of the workpiece (6) to be measured, attaching the sliding baffle (3) to the other side of the workpiece (6) to be measured, screwing the locking assembly, and clamping and positioning the workpiece (6) to be measured by matching the sliding baffle (3) and the fixed baffle (2); continuously screwing the measuring rod (4) downwards, stopping screwing the measuring rod (4) when the measuring end (41) is contacted with the step plane (62), continuously sending an electric signal by the displacement sensor (5) in the process, receiving the electric signal by the signal conditioner (7) and then amplifying and filtering, receiving the electric signal by the data processor (8) and converting the electric signal into a digital signal and transmitting the digital signal to the computer (9), continuously obtaining and recording a new numerical value by the computer (9), comparing and processing the obtained data to obtain the distance from the step plane (62) to the reference plane (61);
when the depth of the stepped hole is detected, firstly, a workpiece (6) to be detected is placed on a detection platform, the end face of a small hole (632) is attached to a measurement platform, the end face of a large hole (631) faces upwards, then the top surface of a measurement substrate (1) is attached to the end face of the large hole (631), at the moment, a fixed baffle (2) faces upwards, and a first measurement hole is located above the end face of the large hole (631); screwing the measuring rod (4) downwards, and stopping screwing the measuring rod (4) when the measuring end (41) is contacted with the end face of the large hole (631); moving the measuring substrate (1) to a position above the step position of the small hole (632) of the first measuring hole, continuously screwing the measuring rod (4) downwards until the measuring end (41) passes through the large hole (631) to be in contact with the step position of the small hole (632), stopping screwing the measuring rod (4), continuously sending an electric signal by the displacement sensor (5) in the process, receiving the electric signal by the signal conditioner (7) and then carrying out amplification and filtering processing, receiving the electric signal by the data processor (8) again and converting the electric signal into a digital signal to be transmitted to the computer (9), continuously obtaining and recording a new numerical value by the computer (9), comparing and processing the obtained data to obtain the depth of the large hole (631); and moving the measuring substrate (1) to a position above the end face (632) of the small hole, repeating the operation process when the depth of the stepped hole is detected until the measuring end (41) sequentially passes through the large hole (631) and the small hole (632) to be contacted with the measuring platform, and comparing and processing the obtained data by the computer (9) to obtain the total depth of the stepped hole.
2. The step plane distance and hole depth measuring device of claim 1, wherein: the measuring rod (4) is in threaded connection with the measuring hole (11).
3. The step plane distance and hole depth measuring device according to claim 1 or 2, wherein: the locking assembly comprises a locking screw (32), the locking screw (32) is in threaded connection with the sliding baffle (3), and the locking screw (32) faces to the sliding direction of the sliding baffle (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910543366.6A CN110307818B (en) | 2019-06-21 | 2019-06-21 | Step plane distance and hole depth measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910543366.6A CN110307818B (en) | 2019-06-21 | 2019-06-21 | Step plane distance and hole depth measuring device |
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| CN110307818A CN110307818A (en) | 2019-10-08 |
| CN110307818B true CN110307818B (en) | 2021-06-29 |
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| CN116164687B (en) * | 2023-04-26 | 2023-07-21 | 南京泰普森自动化设备有限公司 | Workpiece size measuring method and device |
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