CN111220108B - Measuring system for hole parts - Google Patents
Measuring system for hole parts Download PDFInfo
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- CN111220108B CN111220108B CN202010330309.2A CN202010330309A CN111220108B CN 111220108 B CN111220108 B CN 111220108B CN 202010330309 A CN202010330309 A CN 202010330309A CN 111220108 B CN111220108 B CN 111220108B
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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
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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
- G01B21/02—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 length, width, or thickness
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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
- G01B21/10—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 diameters
- G01B21/14—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 diameters internal diameters
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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
- G01B21/32—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 the deformation in a solid
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The application relates to the field of detection and measurement, and specifically discloses a measurement system of hole type part, this measurement system includes: the base is fixed on the rack and provided with a first guide rail and a second guide rail which extend in parallel along the longitudinal direction and are arranged at intervals; a base elasticity measuring device mounted to the base and having a base arm extending in a longitudinal direction, an end of the base arm being provided with a base contact; the first elasticity measuring device and the second elasticity measuring device are slidably mounted on the base through a first guide rail and a second guide rail respectively and are provided with a first contact head and a second contact head; the base contact, the first contact and the second contact each have a radially extended position and a radially retracted position that are reciprocally switchable. According to the technical scheme of this application, can measure the radial direction parameter of hole, also can measure the axial direction parameter of hole.
Description
Technical Field
The application relates to the field of detection and measurement of mechanical parts, in particular to a measurement system for detecting and measuring a hole structure of a hole part.
Background
Before the mechanical parts leave a factory, detection and measurement are needed to ensure that all parameters of the mechanical parts meet working requirements. In addition to the parameters of the surface of the mechanical part, it is also important to detect the parameters of the hollow or perforated mechanical part, such as the size and shape of the inner surface thereof.
Traditionally, the inside diameter of the hole-type part is measured by using a manual tool such as a vernier caliper or a micrometer, or by using other optical and electrical measuring instruments. However, the conventional measuring device is generally only suitable for hole parts with smooth inner surfaces of holes, and it is difficult to measure parameters of hole parts with other concave-convex shapes or structures in the holes, such as measuring the internal thread span of the hole parts with internal threads, and currently, there is no ideal measuring scheme.
Therefore, how to realize measurement of parameters in both the radial direction and the axial direction of the hole (such as the internal thread span of a hole part with an internal thread) becomes a technical problem to be solved in the field.
Disclosure of Invention
In view of this, the present application provides a detection system for a hole-type component, so as to measure parameters of both a radial direction and an axial direction of a hole (e.g., a pitch of an internal thread across a rod of the hole-type component with the internal thread).
According to the application, a measurement system for a hole part is provided, the measurement system comprising: the base is fixed on the rack and provided with a first guide rail and a second guide rail which extend in parallel along the longitudinal direction and are arranged at intervals; a base elasticity measuring device mounted to the base and having a base arm extending in a longitudinal direction, an end of the base arm being provided with a base contact; and the first elasticity measuring device and the second elasticity measuring device are slidably mounted on the base through the first guide rail and the second guide rail respectively, the first elasticity measuring device is provided with a first arm extending along the longitudinal direction and provided with a first contact at the end part, the second elasticity measuring device is provided with a second arm extending along the longitudinal direction and provided with a second contact at the end part, and at least two of the basic contact, the first contact and the second contact have different orientations. Wherein the base contact, the first contact and the second contact each have a radially extended position and a radially retracted position that are reciprocally switchable. In an actuating state of the basic elasticity measuring device, the first elasticity measuring device and the second elasticity measuring device, the basic contact head, the first contact head and the second contact head are all in the radial contraction position so as to allow the basic contact head, the first contact head and the second contact head to enter and exit the hole structure of the hole part to be measured; in the non-actuated state of the basic elasticity measuring device, the first elasticity measuring device and the second elasticity measuring device, the basic contact head, the first contact head and the second contact head are all located at the radial extending positions to abut against the inner surface of the hole structure of the hole part to be measured.
Preferably, the base contact, the first contact and the second contact are distributed circumferentially in the same or different vertical planes perpendicular to the radial direction, or the base contact, the first contact and the second contact are distributed vertically in a vertical plane in which the longitudinal direction is located.
Preferably, the base contact is disposed downward, and the first contact and the second contact are spaced forward and backward in the longitudinal direction and are disposed upward.
Preferably, the base elasticity measuring device is located between the first and second elasticity measuring devices, at least one of the base arm, first arm and second arm having a meandering configuration.
Preferably, the hole part to be measured is a nut, and the measuring system is used for measuring the span length of the internal thread of the nut.
Preferably, the elasticity measuring devices of the base elasticity measuring device, the first elasticity measuring device and the second elasticity measuring device each include: the base part and the connecting part are arranged at intervals, the contact head is arranged on the connecting part in an extending way away from the base part, and the base part is used as an installation base of the elasticity measuring device and is installed on the base; a first elastic deformation body and a second elastic deformation body which are connected between the base member and the connecting member at intervals to form a quadrangular structure; the cantilever part is fixedly arranged on the connecting piece and extends to the base part from the connecting piece, and a measuring head for measuring the displacement change of the cantilever part is arranged on the base part; an actuator member fixedly mounted to the base member and extending toward the boom member, the actuator member releasably applying a load to an end of the boom member upon actuation of an actuator mounted to the base member.
Preferably, the contact is fixedly connected to the connecting member through a connecting rod, the connecting rod includes a base portion directly fixed to the connecting member, a rod portion extending from the base portion, and an installation portion at a distal end of the rod portion where the contact is installed, and the contact and the connecting rod are located in a plane where the quadrilateral structure is located or the contact is not located in a plane where the quadrilateral structure is located.
Preferably, the first elastic deformation body and the second elastic deformation body are both in the shape of an elongated strip.
Preferably, the first elastic deformation body and the second elastic deformation body each have a thinned portion whose thickness becomes smaller, and the first elastic deformation body and the second elastic deformation body are provided with through holes penetrating in the thickness direction.
Preferably, the actuating member has a reciprocating initial position and an actuating position under the action of the actuator, wherein: in the initial position in the non-actuated state, the actuating member does not interact with the cantilever member, and the connecting member is in the initial state relative to the base member, so that the contact head is in the extended position; in an actuating position in an actuating state, the actuating element applies a load to the cantilever member toward the first elastically deformable body or the second elastically deformable body, so that the connecting member is in a biased state relative to the base member toward the first elastically deformable body or the second elastically deformable body, and the contact is in a contracted position having a displacement difference relative to the extended position.
According to the technical scheme of the application, each contact head is provided with a radial extending position and a radial contracting position which can be converted back and forth through the state change of the elastic measuring device, when the elastic measuring device is in an actuating state, each contact head in the radial contracting position can enter and exit the hole of the hole part through the opening of the hole part, when the elastic measuring device is in a non-actuating state, each contact head radially extends out and can be automatically unfolded in the hole of the hole part to reach a measuring point, and therefore the inner surface of the hole part can be measured. The elastic measuring device arranged on the guide rail can automatically adjust the axial position of the contact according to the shape (such as internal threads) in the hole, and the flexible applicability of the measuring system is improved.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate an embodiment of the invention and, together with the description, serve to explain the invention. In the drawings:
FIG. 1 is a schematic view of an elasticity measurement device according to a preferred embodiment of the present application;
FIG. 2 is a schematic view of the elasticity measurement device shown in FIG. 1 in a non-actuated state;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic view of the elasticity measuring device shown in FIG. 1 in an actuated state;
FIG. 5 is a partial schematic view of an elasticity measurement device according to another embodiment of the present application;
FIG. 6 is an enlarged view of a portion of FIG. 1;
FIG. 7 is a partial cross-sectional view of FIG. 2;
FIGS. 8 and 9 are schematic views of a measurement system for a bore type part according to a preferred embodiment of the present application;
FIG. 10 is a cross-sectional view of the measurement system of the bore type component shown in FIG. 8;
FIG. 11 is a partial cross-sectional view of the measurement system of the bore component of FIG. 8 in an operational configuration;
FIG. 12 is a schematic view of a basic elasticity measuring device of a measuring system for hole type parts according to a preferred embodiment of the present application;
FIG. 13 is a schematic view of a primary elasticity measuring device and a secondary elasticity measuring device of a measurement system for a bore type part according to a preferred embodiment of the present application;
fig. 14 is a schematic view showing a spatial positional relationship of contact heads of a measuring system for a hole-like member according to a preferred embodiment of the present invention.
Detailed Description
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
When the hole type part is measured, it is usually relatively easy to measure radial parameters such as the inner diameter of the hole, however, it is relatively difficult to measure related parameters of the hole type part in the axial direction. For example, it is difficult to detect the internal thread span of a hole part with an internal thread. Therefore, the application provides a measuring system for hole parts, which can measure parameters of the hole parts in the radial direction and in the axial direction, for example, can detect the inner diameter of a hole and also can detect internal thread related parameters of a threaded hole. In particular, the technical scheme of the application is suitable for hole type parts of the nut, the measuring system is used for measuring the rod spanning distance S of the internal thread of the nut (particularly a thread structure for transmitting power), and under the working condition, the rod spanning distance refers to the minimum distance between two rolling balls in the diameter direction of a threaded hole under the state that the rolling balls are in a thread rolling path of the power nut.
The different parts of the measuring system will be described correspondingly below.
1. Base and guide rail
The measuring system for hole parts comprises a base 500, the base 500 being fixed to the machine frame and being provided with a first guide 501 and a second guide 502 extending in parallel in the longitudinal direction D and being arranged at a distance from each other.
The base 500 is mounted to the frame as the basis for a measurement system for the entire bore type part. The machine frame can be designed to be stationary or movable, for example, to be movable up and down.
The first guide 501 and the second guide 502 provided on the base 500 are arranged at a distance from each other and each extend in the longitudinal direction D, thereby allowing the first elasticity measuring device 505 and the second elasticity measuring device 506 to reciprocate back and forth in the longitudinal direction D, as shown in fig. 8. Further, a basic elasticity measuring device 503 is further installed on the base 500, and thus, as shown in fig. 8 and 12, the basic elasticity measuring device 503 is installed on the base 500 while a first elasticity measuring device 505 and a second elasticity measuring device 506 are respectively provided on both sides of the elasticity measuring device 503.
2. Basic elasticity measuring device, first elasticity measuring device and second elasticity measuring device
As shown in fig. 12, a base elasticity measuring device 503 is mounted to the base 500 and has a base arm 5031 extending in the longitudinal direction, and a base contact 504 is provided at an end of the base arm 5031.
As shown in fig. 8, 9 and 13, a first elasticity measuring device 505 and a second elasticity measuring device 506 are slidably mounted to the base 500 through the first guide 501 and the second guide 502, respectively. Therefore, as described above, the first elasticity measuring device 505 and the second elasticity measuring device 506 can move back and forth in the longitudinal direction D by the first rail 501 and the second rail 502. In contrast, the base elasticity measuring device 503 is generally not moved in the longitudinal direction in the embodiment shown in the figures, but may be designed to move linearly in the longitudinal direction D in other embodiments, arranged to move up and down in the height direction.
As shown in fig. 8, the basic elasticity measuring device 503 is located between the first elasticity measuring device 505 and the second elasticity measuring device 506, but the present application is not limited thereto, and for example, the basic elasticity measuring device 503 may be disposed at one side such that the first elasticity measuring device and the second elasticity measuring device are adjacent to each other.
The first elasticity measuring device 505 has a first arm 508 extending in the longitudinal direction and provided with a first contact 507 at the end, and the second elasticity measuring device 506 has a second arm 510 extending in the longitudinal direction and provided with a second contact 509 at the end. As shown in fig. 10, 11 and 14, the measurement of the hole-like parts is performed by the base contact 504 provided at the end of the base arm 5031, the first contact 507 provided at the end of the first arm 508 and the second contact 509 provided at the end of the second arm 510.
3. Base contact, first contact and second contact
As shown in fig. 10, 11 and 14, the zigzag structure of at least one of the base arm 5031, the first arm 508 and the second arm 510 enables the base contact 504 arranged at the end of the base arm 5031, the first contact 507 arranged at the end of the first arm 508 and the second contact 509 arranged at the end of the second arm 510 to have different layout schemes so as to be suitable for detecting the inner hole of the hole-type part. In particular, at least two of the base contact 504, the first contact 507 and the second contact 509 preferably have different orientations, in particular different orientations in the radial direction into the hole part to be tested.
Preferably, the base contact 504, the first contact 507 and the second contact 509 are distributed circumferentially in the same or different vertical planes perpendicular to the radial direction, or the base contact 504, the first contact 507 and the second contact 509 are distributed vertically in the vertical plane in which the longitudinal direction is located. As another example, the base contact 504 is disposed downward, and the first contact 507 and the second contact 509 are spaced back and forth in the longitudinal direction and are disposed upward, as shown in fig. 14. It is understood that the technical solution of the present application is not limited thereto, and the base contact 504, the first contact 507 and the second contact 509 may have various layouts according to different application conditions.
Through the different orientations of the contact heads in the radial direction, the detection and measurement of the radial direction parameters of the hole parts can be met. Furthermore, since the first contact and the second contact have a degree of freedom in the longitudinal direction D with respect to the base contact, by detecting the relative position of the first contact (or the second contact) in the longitudinal direction with respect to the base contact, it is possible to detect a parameter in the longitudinal direction of the hole-like part. Thus, measurements in the longitudinal and radial directions of the hole-like part can be achieved.
The base contact 504, the first contact 507 and the second contact 509 each have a radially extended position and a radially retracted position that are reciprocally switchable.
In the actuated state of the base elasticity measuring device 503, the first elasticity measuring device 505 and the second elasticity measuring device 506, the base contact 504, the first contact 507 and the second contact 509 are all in the radially contracted position to allow the base contact 504, the first contact 507 and the second contact 509 to enter and exit the aperture structure of the aperture-like part to be measured.
In the non-actuated state of the base elasticity measuring device 503, the first elasticity measuring device 505 and the second elasticity measuring device 506, the base contact 504, the first contact 507 and the second contact 509 are in the radially extended position to abut against the inner surface of the hole structure of the hole-like part to be measured, as shown in fig. 11.
4. Working process
And preparing the hole parts to be tested. And meanwhile, preparing a measuring system of the hole parts.
First, an actuating force is applied to the basic elasticity measuring device 503, the first elasticity measuring device 505 and the second elasticity measuring device 506 in a non-actuated state, so that the basic elasticity measuring device 503, the first elasticity measuring device 505 and the second elasticity measuring device 506 are brought into an actuated state, and the basic contact 504, the first contact 507 and the second contact 509 are all converted from a radially extended position to a radially contracted position. Thus, the individual contacts are made to project into the bore-like part.
After reaching the predetermined position, the actuation force is released, thereby restoring each contact head from the radially retracted position to the radially extended position, such that each contact head abuts against a respective corresponding measurement point, as shown in fig. 11. In the illustrated embodiment, the base contact 504 of the base elasticity measurement device remains relatively fixed in position within the bore and exists as a base. The first contact 507 and the second contact 509 may be converted back to a radially retracted position to adjust the axial position within the bore in the longitudinal direction (i.e., the axial direction) to enable detection of other parameters or to correct previous measurements. As can be seen from the description of the process, it is obvious that by using the technical solution provided in the present application, it is possible to detect radial parameters of hole parts as well as axial parameters.
In particular to the measurement of the span of the internal thread of the nut, the individual contacts described above can replace the rolling balls in the threaded raceways, so as to obtain a minimum pitch in the diametrical direction. Meanwhile, the method and the device are not limited to the method and the device, and can be used for adaptively detecting and measuring various parameters of the thread structure of the hole part in the axial direction and the radial direction. In addition, although the present application proposes a measurement scheme for a shaft-type part, it can be understood by those skilled in the art that if each contact is designed to be disposed inward in the radial direction (in the present application, each contact is designed to be disposed outward in the radial direction to suit the measurement of the hole structure), the measurement can also be performed on the external thread structure of the shaft-type part.
Each of the elasticity measuring devices (e.g., the base elasticity measuring device and the first and second elasticity measuring devices) in the above-described measuring system may employ a conventionally-available contact-type elasticity measuring device. A preferred elasticity measuring device is described in detail below.
As shown in fig. 1, the present application provides an elasticity measuring apparatus including: the connector comprises a base part 10 and a connecting part 11, wherein the base part 10 and the connecting part 11 are arranged at intervals, and a contact head 12 is arranged on the connecting part 11 and extends away from the base part 10; a first elastic deformation body 21 and a second elastic deformation body 22, wherein the first elastic deformation body 21 and the second elastic deformation body 22 are connected between the base member 10 and the connecting member 11 at intervals, so that a quadrilateral structure is formed; a cantilever member 30, wherein the cantilever member 30 is fixedly arranged on the connecting piece 11 and extends from the connecting piece 11 to the base member 10, and a measuring head 31 for measuring displacement change of the cantilever member 30 is arranged on the base member 10; an actuator 40, wherein the actuator 40 is fixedly mounted to the base member 10 and extends toward the cantilever member 30, and wherein the actuator 40 is driven by an actuator 41 mounted to the base member 10 to releasably apply a load to the end of the cantilever member 30. This technical solution is described in detail below.
The base element 10 serves as a mounting base for the elasticity measuring device. The base member 10 may be of any suitable construction, and typically the base member 10 is relatively rigid, so that the base member 10 remains substantially undeformed upon elastic deformation of the elastically deformable body.
The connecting member 11 is spaced apart from the base member 10 and connected to a contact 12 away from the base member 10, and the contact 12 directly contacts with a measurement point of the component to be measured, so that a pressure change is generated between the contact and the measurement point of the component to be measured. The contact head 12 may be fixedly connected to the connection member 11 in various ways, for example, the contact head 12 is fixedly connected to the connection member 11 by a link 13. The connecting rod 13 may be a single rod or a plurality of rods connected to each other. Preferably, as shown in fig. 2, the connecting rod 13 includes a base portion 131 directly fixed to the connecting member 11, a rod portion 132 extending from the base portion 131, and a mounting portion 133 having the contact 12 mounted at a distal end of the rod portion 132. It is to be understood that the link 13 is not limited to the specific structural form described above.
The orientation of the contact 12 may be selected and designed according to the particular application. For example, as shown in fig. 2, an angle between the extending direction of the mounting portion 133 and the extending direction of the lever portion 132 is 60 degrees to 90 degrees. In addition, although the mounting portion 133 forms one bent portion as shown in fig. 2, the illustration is merely an example, and is not limited to this configuration. For example, in the specific application of the measuring system shown in fig. 11, the contact head 12 can have a suitable spatial position by means of several different bends. The contact 12 and the link 13 may be located in the plane of the quadrilateral structure, or the contact 12 may not be located in the plane of the quadrilateral structure. Therefore, the three-dimensional orientation of the contact 12 can be selected according to the operating conditions.
A first elastic deformation body 21 and a second elastic deformation body 22 are provided between the base member 10 and the connection member 11 at a distance from each other, thereby forming a quadrangular structure, as shown in fig. 1 and 2. Therefore, when the contact 12 of the connecting member 11 and the measuring point of the component to be measured contact each other to generate a pressure, the contact 12 drives the connecting member 11 to generate a predetermined elastic deformation (usually, the elastic deformation is not observable by human eyes) relative to the base member 10 through the first elastic deformation body 21 and the second elastic deformation body 22. Therefore, by detecting or sensing the degree of this elastic deformation, measurement data of a predetermined parameter can be obtained.
The quadrilateral structure can be a rectangular structure, a square structure or a rhombic structure, and can be an irregular quadrilateral structure even under certain working conditions. In this structure, the first elastic deformation body 21 and the second elastic deformation body 22 are key components that allow the connection member 11 to be deformed or displaced with respect to the base member 10. Preferably, the elastic modulus E of the first elastic deformation body 21 and the second elastic deformation body 22 is 150-250Gpa, so as to facilitate the occurrence of the precise deformation and displacement, and further realize the measurement. The material of the elastic deformation body can be stainless steel or hard alloy, such as 2Cr 13. Preferably, as shown in fig. 1, each of the first elastic deformation body 21 and the second elastic deformation body 22 is in the shape of an elongated strip. Since the thickness of the strip shape is relatively thin, elastic deformation is facilitated.
Further preferably, each of the first elastic deformation body 21 and the second elastic deformation body 22 has a reduced thickness portion B in which the thickness is reduced, as shown in fig. 2; and/or as shown in fig. 1, the first elastic deformation body 21 and the second elastic deformation body 22 are provided with a through hole H penetrating in the thickness direction. By providing the thinned portion B, the deformability of the elastic deformation body can be further improved; by providing the through-hole H, in addition to improving deformability, weight can be reduced. The thinning portion B and the through hole H may be provided at appropriate positions of the elastic deformation body.
The first elastic deformation body 21 and the second elastic deformation body 22 may be relatively independent members. Alternatively, as shown in fig. 2, the first elastic deformation body 21 and the second elastic deformation body 22 are connected to each other by a connecting plate 23 to form a U-shaped structure, and are attached and fixed to the connecting member 11 by the connecting plate 23. As shown in fig. 1 and 2, the ends of the first and second elastic deformation bodies 21 and 2 may be detachably connected to the base member 10 by fasteners.
As shown in fig. 5 and 7, in order to buffer the displacement of the connecting member 11 relative to the base member 10 through the elastic deformation of the first elastic deformation body 21 and the second elastic deformation body 22, it is preferable that a fixing arm 50 is fixedly provided on the base member 10, the fixing arm 50 extends from the base member 10 toward the connecting member 11 in a plane in which the quadrilateral structure is located and is located between a cantilever member 30 (described in detail below) and the second elastic deformation body 22, an end of the fixing arm 50 is not in contact with the connecting member 11 and is adjacent to a bottom of the cantilever member 30, and an elastic member 60 is provided between an end 501 of the fixing arm 50 and the bottom 301 of the cantilever member 30.
In this embodiment, the base 10 remains substantially stationary, so that the fastening arm 50 is fixedly connected to the base 10 as a single rigid body. Since the end of the fixing arm 50 is not in direct contact with the link 11 (as shown in fig. 7), thereby avoiding interference with the link 11, the link 11 can still freely be displaced relative to the base member 10 by elastic deformation of the elastic body.
Due to the arrangement of the elastic member 60, when the connecting member 11 and the suspension arm member 30 are displaced relative to the base member 10, the elastic member 60 can buffer the relative displacement therebetween. Further preferably, as shown in fig. 5, an elastic member (not shown) may be provided between the suspension member 30 and a member attached to the link 11. The elastic member may be a spring member.
As shown in fig. 1, 2, 4, and 5, the link 11 is fixedly provided with a cantilever member 30 extending toward the base member 10 (but not connected to the base member 10). Therefore, when the link 11 is elastically deformed or elastically displaced by the first elastic deformation body 21 and the second elastic deformation body 22, the cantilever member 30 can directly reflect the change in the elastic displacement of the link 11. Meanwhile, a measuring head 31 for measuring the displacement change of the cantilever member 30 is mounted on the base member 10, and as shown in fig. 1 to 3, the measuring head 31 is adjacent to the cantilever member 30 but generally not in direct contact therewith. The measuring head 31 obtains detection data by sensing the displacement change of the cantilever member 30.
As shown in fig. 1, 2, 3, 4, 5 and 6, the base member 10 is fixedly mounted with an actuator 40, the actuator 40 extending toward the cantilever member 30 for releasably applying a load to the end of the cantilever member 30 under the drive of an actuator 41 mounted on the base member 10. Therefore, under the driving of the actuator 41, the actuator 40 may apply a load or not apply a load to the end of the cantilever member 30, so that the cantilever member 30 directly drives the connecting member 11 to displace relative to the base member 10 through the elastic deformation of the first elastic deformation body 21 and the second elastic deformation body 22, and further the contact 12 of the connecting member 11 is switched between the extended position and the retracted position (or the retracted position and the extended position).
The actuator 41 is preferably a linear actuator, such as a linear motor, an air cylinder, a hydraulic cylinder, etc., which is linearly moved to apply a pulling force F (shown in fig. 5) and/or a pushing force (not shown) to the end of the boom member 30. It is noted that the actuator 40 is different in the different embodiments of fig. 4 and 5. In the embodiment shown in fig. 5, the so-called actuator 40 is actually part of the boom element 30, so that the pulling force F is able to displace the coupling element 11 to the right as a whole in the orientation shown in fig. 5 relative to the base element 10; in the embodiment shown in fig. 4 and 6, the coupling element 11 is displaced to the left by a lever mechanism by a tensile force F. The contact 12 on the connector can be moved or retracted in the same direction as the connector by controlling the direction of the offset of the connector 11.
The actuator 41 is mounted to the base member 10 or to the frame. As shown in fig. 3, the base member 10 extends with an extending portion 14 spaced apart from and adjacent to the first elastic deformation body 21, the measuring head 31 is mounted on the extending portion 14 and passes through the first elastic deformation body 21 with a gap to approach the cantilever member 30, and the actuator 41 is mounted on the extending portion 14 and passes through the first elastic deformation body 21 with a gap.
The extension 14 extends from the base member 10 and can therefore be understood as a part of the base member 10. The extension 14 provides a mounting base for the measuring head 31 and the actuator 41. For example, as shown in fig. 3, the measuring head 31 needs to pass through the first elastic deformation body 21 with a gap and approach the cantilever member 30, so the measuring head does not affect the elastic deformation of the first elastic deformation body. Similarly, the actuator 41 is mounted on the extending portion 14 and passes through the first elastic deformation body 21 with a gap so as to pass through the interaction between the actuating member 40 and the cantilever member 30, and therefore the actuator 41 does not affect the elastic deformation of the first elastic deformation body.
The actuator 40 is driven and controlled by an actuator 41 and interacts directly with the end of the boom member 30 or is part of the boom member 30. As shown in fig. 4 and 6, according to a preferred embodiment, the actuating member 40 comprises: a bracket 401, wherein the bracket 401 is fixedly arranged on the side surface of the base member 10 facing the connecting member 11 in a protruding manner; an actuator lever 402, the actuator lever 402 being hinged to the bracket 401 and having a first end 403 for engaging the actuator 41 and a second end 404 for engaging the cantilever member 30. Thus, the actuator 402 corresponds to a lever hinged to the bracket 401, the first end 403 of the actuator 402 being adapted to cooperate with the actuator 41, and the second end 404 being adapted to cooperate with the cantilever member 30. As shown in FIG. 4, when the actuator lever 402 is rotated clockwise, the second end 404 can be moved out of interfering relation with the suspension member 30; when the actuator lever 402 is rotated counterclockwise, the second end 404 can be pressed against the end of the suspension 30 to the left in the orientation shown in fig. 4, thereby causing the link 11 and its contact to shift to the left.
In this embodiment, the load F can be applied to the suspension 30 more precisely because the actuator 41 is not required to directly act on the suspension 30 due to the hinged design of the actuator rod 402 and the bracket 401. Moreover, since the cantilever member 30 can be designed smaller or more compact than the integrated cantilever member 30, it is possible to apply a smaller load to drive the deformation of the cantilever member 30 and thus the displacement of the connector and the contact 12. Moreover, by designing the mechanism as a lever 402, a force amplification effect can be achieved, such that a relatively small force is applied to the first end 403 of the actuator rod 402 by the actuator 40, and a relatively large force can be applied to the end of the cantilever member 30 at the second end 404, thereby achieving precise control of the load applied by the actuator 40 to further improve the measurement accuracy.
As shown in fig. 6, the bracket 401 is a fork bracket, and the actuating lever 402 is hinged at its middle portion to an open end 406 thereof by a hinge shaft 405. Thus, both side surfaces of the actuating lever 402 are hinged to the open end portion 406 through the hinge shaft 405, thereby obtaining good stability. Preferably, said second end 404 of the actuating lever 402 is provided with a roller 407, so as to avoid friction concentrations between the second end 404 and the end of the cantilever member 30. Although the preferred embodiment of the present application is shown in the drawings, the present application is not limited thereto, and the bracket 401 may not be in the form of a fork structure, but may be in the form of a plate bar.
The actuator 41 may be mated or coupled to the first end 403 of the actuator rod 402 in a variety of ways. For example, the actuator 41 may be hingedly connected directly to the first end 403, such that pushing and pulling forces may be applied to the actuator 41. Preferably, the actuator 41 passes through the first end 403 of the actuator rod 402 with clearance and is provided with a flange stop 411 at the end, so that the actuator rod 402 is rotated counterclockwise in the orientation of fig. 4 by applying a pulling force (load) to apply a leftward pressure to the end of the cantilever member 30 through the second end 404. When the actuator rod 402 is not rotating or rotating clockwise, the second end 404 does not apply a force to the end of the cantilever member 30 or, if applied, does not deform the cantilever member 30. It is further preferable that a torsion spring (not shown) may be provided at the hinge shaft to control the position of the actuating lever 402 by the actuator 41 together with the torsion spring.
The actuator 41 acts on the actuator 40 to bring the actuator 40 into the actuating position, such as pulling the first end 403 of the actuating rod 402 in the embodiment shown in fig. 4, so that the end of the actuating rod 403 passing through the second end 404 of the cantilever member 30 applies a load, i.e. a load F towards the second elastic deformation body 22 (as shown in fig. 4), so that the cantilever member 30 carries the connecting member 11 with the elastic deformation of the first elastic deformation body 21 and the second elastic deformation body 22, and generates a displacement in the same direction as the force applied to the cantilever member 30 relative to the base member 10, so that the contact 12 is in the second position (e.g. a contracted position facing the contact 12, which has a displacement difference relative to the extended position). It will be appreciated by those skilled in the art that the above-described extended and retracted positions of the contacts may be interchanged in different embodiments, such as the embodiment shown in fig. 5.
Therefore, when the elasticity measuring apparatus is ready to be used, the actuator is first used to drive the actuator so that the contact head 12 is in the contracted position, then the elasticity measuring apparatus is moved to a predetermined accurate position, and the actuator is released so that the contact head 12 is in the extended position and accurately makes point contact with the measurement point of the component to be measured, while the contact head 12 is facilitated to maintain point contact with the measurement point since the actuator does not need to be driven. Therefore, the measurement head 31 measures the parameter information of the cantilever member 30 connected with the contact 12 and the connecting member 11, and then obtains the measurement parameters. Of course, the present application is not so limited, and for example, the contact head may be placed in a retracted position when the actuator is not actuated and in an extended position when the actuator is actuated.
The elastic measuring device provided by the application is fully described in detail, and the combined design of the elastic deformation body is utilized, so that the measuring device has good flexibility and practicability and can be applied to various different application occasions. Furthermore, due to the compact and miniaturized design of the cantilever part, the load applied by the actuator can be reduced, and the lever design in a preferable mode can further reduce the required load, so that the measurement accuracy is improved. The parts or components of the elasticity measuring device are usually made of metal materials, but the parts or components are not excluded from being made of non-metal materials such as engineering plastics, ceramics and the like under the condition of meeting application conditions, and the parts or components are selected and applied according to specific working conditions. The elasticity measuring device can be used for measuring various parameters, such as dimension parameters, position parameters and the like. The elasticity measuring device can be used singly or in combination according to different application occasions. The present application is not limited to the elasticity measuring device shown in fig. 1 to 7, and other contact-type elasticity measuring devices such as pen-type sensors may be used.
The preferred embodiments of the present application have been described in detail above, but the present application is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and these simple modifications all belong to the protection scope of the present application.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described in the present application.
In addition, any combination of the various embodiments of the present application is also possible, and the same should be considered as disclosed in the present application as long as it does not depart from the idea of the present application.
Claims (9)
1. A measurement system for bore type parts, the measurement system comprising:
a base (500), the base (500) being fixed to the frame and being provided with a first guide rail (501) and a second guide rail (502) extending in parallel in the longitudinal direction (D) and being arranged at a distance from each other;
a base elasticity measuring device (503), the base elasticity measuring device (503) being mounted to the base (500) and having a base arm (5031) extending in the longitudinal direction, an end of the base arm (5031) being provided with a base contact (504); and
a first elasticity measuring device (505) and a second elasticity measuring device (506), which first elasticity measuring device (505) and second elasticity measuring device (506) are slidably mounted to the base (500) by means of the first guide rail (501) and second guide rail (502), respectively, the first elasticity measuring device (505) having a first arm (508) extending in a longitudinal direction and having a first contact head (507) arranged at an end thereof, the second elasticity measuring device (506) having a second arm (510) extending in a longitudinal direction and having a second contact head (509) arranged at an end thereof, at least two of the base contact head (504), the first contact head (507) and the second contact head (509) having different orientations; wherein the content of the first and second substances,
the base contact (504), the first contact (507) and the second contact (509) each have a radially extended position and a radially retracted position that are reciprocally switchable,
in the actuated state of the base elasticity measuring device (503), the first elasticity measuring device (505) and the second elasticity measuring device (506), the base contact head (504), the first contact head (507) and the second contact head (509) are all in the radially contracted position to allow the base contact head (504), the first contact head (507) and the second contact head (509) to enter and exit the hole structure of the hole-like part to be measured;
in the non-actuated state of the basic elasticity measuring device (503), the first elasticity measuring device (505) and the second elasticity measuring device (506), the basic contact head (504), the first contact head (507) and the second contact head (509) are all in the radially protruding position to abut against the inner surface of the hole structure of the hole-like part to be measured;
the elasticity measuring devices of the base elasticity measuring device (503), the first elasticity measuring device (505) and the second elasticity measuring device (506) each comprise:
a base member (10) and a connecting member (11), wherein the base member (10) and the connecting member (11) are arranged at a distance from each other, the contact heads (504, 507, 509) are arranged on the connecting member (11) in a manner of extending away from the base member (10), and the base member (10) is used as a mounting base for mounting the elasticity measuring device on the base (500);
a first elastic deformation body (21) and a second elastic deformation body (22), wherein the first elastic deformation body (21) and the second elastic deformation body (22) are connected between the base member (10) and the connecting member (11) at intervals, so that a quadrilateral structure is formed;
the cantilever part (30), the cantilever part (30) is fixedly arranged on the connecting piece (11) and extends from the connecting piece (11) to the base part (10), and a measuring head (31) for measuring the displacement change of the cantilever part (30) is arranged on the base part (10);
an actuator (40), the actuator (40) being fixedly mounted to the base member (10) and extending towards the cantilever member (30), the actuator (40) being releasably operable to apply a load to an end of the cantilever member (30) upon actuation of an actuator (41) mounted to the base member (10).
2. A measurement system of a bore type part according to claim 1, characterized in that the base contact (504), the first contact (507) and the second contact (509) are distributed circumferentially in the same or different vertical planes perpendicular to the radial direction, or that the base contact (504), the first contact (507) and the second contact (509) are distributed vertically in a vertical plane in which the longitudinal direction is located.
3. A bore type part measuring system according to claim 2, characterized in that the base contact (504) is arranged downwards, the first contact (507) and the second contact (509) being arranged in longitudinal direction at a distance from each other and both being arranged upwards.
4. A measuring system for hole-like parts according to claim 1, characterized in that the base elasticity measuring device (503) is located between the first elasticity measuring device (505) and the second elasticity measuring device (506), at least one of the base arm (5031), the first arm (508) and the second arm (510) having a meandering structure.
5. A hole part measuring system according to claim 1, characterized in that the hole part to be measured is a nut, and the measuring system is adapted to measure the distance (S) across the rod of the internal thread of the nut.
6. A measuring system for hole-like parts according to claim 1, characterized in that the contact head is fixedly connected to the connecting member (11) by means of a connecting rod (13), the connecting rod (13) comprising a base portion (131) directly fixed to the connecting member (11), a stem portion (132) extending from the base portion (131), and a mounting portion (133) at the end of the stem portion (132) where the contact head is mounted, the contact head and the connecting rod (13) being located in the plane of the quadrilateral or the contact head not being located in the plane of the quadrilateral.
7. A measuring system for hole parts according to claim 1, characterized in that the first and second elastically deformable bodies (21, 22) are each in the shape of an elongated strip.
8. A hole-type part measuring system according to claim 1, wherein each of the first elastically deformable body (21) and the second elastically deformable body (22) has a reduced thickness portion (B) that is reduced in thickness, and the first elastically deformable body (21) and the second elastically deformable body (22) are provided with a through hole (H) that penetrates in a thickness direction.
9. A bore type part measuring system according to claim 1, characterized in that the actuating member (40) has a reciprocally shifted initial position and an actuated position under the action of the actuator (41), wherein:
in the initial position in the non-actuated state, the actuating element (40) does not interact with the cantilever element (30), and the connecting element (11) is in the initial state relative to the base element (10), so that the contact head is in the extended position;
in an actuating position in the actuating state, the actuator (40) applies a load (F) to the cantilever member (30) toward the first elastically deformable body (21) or the second elastically deformable body (22), so that the connecting member (11) is in a biased state of being biased toward the first elastically deformable body (21) or the second elastically deformable body (22) with respect to the base member (10), and the contact head is in a contracted position having a displacement difference with respect to the extended position.
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| CN202010330309.2A CN111220108B (en) | 2020-04-24 | 2020-04-24 | Measuring system for hole parts |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010330309.2A CN111220108B (en) | 2020-04-24 | 2020-04-24 | Measuring system for hole parts |
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| CN111220108B true CN111220108B (en) | 2020-07-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436618A (en) * | 2006-03-30 | 2007-10-03 | Advanced Analysis And Integrat | Hole inspection method and apparatus |
| CN102749059A (en) * | 2012-07-20 | 2012-10-24 | 上海交通大学 | Dual-feed type device for measuring roundness and cylindricity |
| CN203605874U (en) * | 2013-10-16 | 2014-05-21 | 苏州亚太金属有限公司 | Measuring tool for cross-rod distance of internal gear |
| CN203657785U (en) * | 2014-01-13 | 2014-06-18 | 沈阳鼓风机集团核电泵业有限公司 | Gun-type deep hole inner diameter measuring instrument |
| CN207600423U (en) * | 2017-12-07 | 2018-07-10 | 南京泰普森自动化设备有限公司 | Elastomer displacement formula measuring device |
| CN110645946A (en) * | 2019-11-05 | 2020-01-03 | 四川大学 | Portable large-diameter deep hole internal thread pitch diameter on-site measuring instrument and measuring method thereof |
-
2020
- 2020-04-24 CN CN202010330309.2A patent/CN111220108B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2436618A (en) * | 2006-03-30 | 2007-10-03 | Advanced Analysis And Integrat | Hole inspection method and apparatus |
| CN102749059A (en) * | 2012-07-20 | 2012-10-24 | 上海交通大学 | Dual-feed type device for measuring roundness and cylindricity |
| CN203605874U (en) * | 2013-10-16 | 2014-05-21 | 苏州亚太金属有限公司 | Measuring tool for cross-rod distance of internal gear |
| CN203657785U (en) * | 2014-01-13 | 2014-06-18 | 沈阳鼓风机集团核电泵业有限公司 | Gun-type deep hole inner diameter measuring instrument |
| CN207600423U (en) * | 2017-12-07 | 2018-07-10 | 南京泰普森自动化设备有限公司 | Elastomer displacement formula measuring device |
| CN110645946A (en) * | 2019-11-05 | 2020-01-03 | 四川大学 | Portable large-diameter deep hole internal thread pitch diameter on-site measuring instrument and measuring method thereof |
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Denomination of invention: Measuring system of hole parts Effective date of registration: 20230203 Granted publication date: 20200717 Pledgee: Zheshang Bank Co.,Ltd. Nanjing Branch Pledgor: NANJING TOPS AUTOMATION EQUIPMENT Co.,Ltd. Registration number: Y2023980032053 |
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Granted publication date: 20200717 Pledgee: Zheshang Bank Co.,Ltd. Nanjing Branch Pledgor: NANJING TOPS AUTOMATION EQUIPMENT Co.,Ltd. Registration number: Y2023980032053 |