CN115077439A - Shaft hole detection device - Google Patents
Shaft hole detection device Download PDFInfo
- Publication number
- CN115077439A CN115077439A CN202110261606.0A CN202110261606A CN115077439A CN 115077439 A CN115077439 A CN 115077439A CN 202110261606 A CN202110261606 A CN 202110261606A CN 115077439 A CN115077439 A CN 115077439A
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- Prior art keywords
- shaft hole
- positioning
- measuring
- shaft
- move
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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
- G01B21/10—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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
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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
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/12—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring diameters
- G01B7/13—Internal diameters
Abstract
The invention discloses a shaft hole detection device. The shaft hole detection device comprises a shaft hole positioning mechanism, a measurement mechanism and a connection mechanism, the shaft hole positioning mechanism comprises at least three positioning components, the at least three positioning components can move to the shaft hole along the axial direction, the shaft hole positioning mechanism can move along the radial direction, so that the at least three positioning components which are positioned in the shaft hole and move the same distance along the radial direction respectively abut against the inner diameter surface of the shaft hole, the measurement mechanism comprises an aperture measurement component, the aperture measurement component can move to the shaft hole along the axial direction, the aperture measurement component positioned in the shaft hole is used for detecting the diameter of the shaft hole, and the connection mechanism is used for connecting the shaft hole positioning mechanism and the measurement mechanism, so that the shaft hole positioning mechanism and the measurement mechanism can move synchronously along the radial direction. According to the shaft hole detection device, the diameter of the shaft hole can be accurately measured.
Description
Technical Field
The invention relates to the technical field of automation equipment, in particular to a shaft hole detection device.
Background
In the existing engine production process, a dial indicator is usually used for measuring the shaft hole of the bearing bush manually, and whether the bearing bush is qualified or not is judged according to measurement data. But the existing measuring method has larger error.
Therefore, it is desirable to provide a shaft hole detection device to at least partially solve the above problems.
Disclosure of Invention
A series of concepts in a simplified form are introduced in the summary section, which is described in further detail in the detailed description section. This summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to solve the above problem at least partially, according to a first aspect of the present invention, there is provided a shaft hole detection device for a shaft hole, the shaft hole detection device including:
the shaft hole positioning mechanism comprises at least three positioning components which can move into the shaft hole along the axial direction of the shaft hole, and can move along the radial direction of the shaft hole, so that the at least three positioning components which are positioned in the shaft hole and move for the same distance along the radial direction of the shaft hole are respectively abutted against the inner diameter surface of the shaft hole;
a measuring mechanism including an aperture measuring member movable into the shaft hole in the axial direction, the aperture measuring member located in the shaft hole for detecting a diameter of the shaft hole; and
the connecting mechanism is used for connecting the shaft hole positioning mechanism and the measuring mechanism so that the shaft hole positioning mechanism and the measuring mechanism synchronously move along the radial direction.
According to the shaft hole detection device, the shaft hole detection device comprises a shaft hole positioning mechanism, a measuring mechanism and a connecting mechanism, wherein the shaft hole positioning mechanism comprises at least three positioning components, the at least three positioning components can move into a shaft hole along the axial direction, the shaft hole positioning mechanism can move along the radial direction, so that the at least three positioning components which are positioned in the shaft hole and move along the radial direction for the same distance respectively abut against the inner diameter surface of the shaft hole, the measuring mechanism comprises an aperture measuring component, the aperture measuring component can move into the shaft hole along the axial direction, the aperture measuring component positioned in the shaft hole is used for detecting the diameter of the shaft hole, and the connecting mechanism is used for connecting the shaft hole positioning mechanism and the measuring mechanism, so that the shaft hole positioning mechanism and the measuring mechanism synchronously move along the radial direction. Like this, shaft hole positioning mechanism and measuring mechanism along radial direction synchronous motion, shaft hole positioning mechanism can accurately fix a position the center in shaft hole to guarantee that measuring mechanism can accurately measure the diameter in shaft hole, realize automatic positioning, automatic measurement and automatic judgement, the operation is nimble, has improved measuring accuracy, has reduced manual operation error, has improved production efficiency and security in the engine production process.
Optionally, the bore diameter measuring member includes a sensor, the sensor located in the shaft hole is in contact with the inner diameter surface, and the sensor is rotatable in a circumferential direction of the shaft hole. Thereby enabling automatic measurement of the diameter of the shaft hole.
Optionally, the shaft hole positioning mechanism further includes a positioning main body and a positioning axial driving member, the positioning main body is provided with the at least three positioning members, and the positioning axial driving member is connected with the positioning main body to drive the at least three positioning members to move along the axial direction.
Optionally, the shaft hole positioning mechanism further comprises at least three positioning radial driving members, and the at least three positioning radial driving members are respectively connected with the at least three positioning members for respectively driving the at least three positioning members to move along the radial direction.
Optionally, the measuring mechanism further comprises a measuring circumferential driving member and a rotating shaft, the measuring circumferential driving member is connected with the aperture measuring member through the rotating shaft for driving the aperture measuring member to rotate in the circumferential direction.
Optionally, the measuring mechanism further comprises a measuring axial drive member connected with the aperture measuring member for driving the aperture measuring member to move in the axial direction.
Optionally, the measuring mechanism further comprises a measuring radial drive member connected with the sensor for driving the sensor to move in the radial direction.
Optionally, the measuring mechanism further includes a transmission member for connecting the measuring circumferential driving member and the rotating shaft, the rotating shaft is disposed coaxially with the shaft hole, and the measuring circumferential driving member and the rotating shaft are arranged side by side in the radial direction.
Optionally, the direction of movement of the positioning member in the axial direction is opposite to the direction of movement of the aperture measuring member.
Optionally, the top of the shaft hole positioning mechanism and the top of the measuring mechanism are both connected with the lower surface of the connecting mechanism.
Drawings
The following drawings of the invention are included to provide a further understanding of the invention. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles and apparatus of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a perspective view of a cylinder block of a conventional engine;
FIG. 2 is a front view of a shaft hole detecting apparatus according to a preferred embodiment of the present invention;
FIG. 3 is a front view of the shaft hole positioning mechanism of the shaft hole detecting device shown in FIG. 2;
FIG. 4 is a right side view of the axle hole positioning mechanism shown in FIG. 3;
FIG. 5 is a front view of a measuring mechanism and a connecting mechanism of the shaft hole detecting device shown in FIG. 2;
FIG. 6 is a front view of the measuring mechanism shown in FIG. 5; and
fig. 7 is a right side view of the measuring mechanism shown in fig. 5.
Description of reference numerals:
100: shaft hole detection device 110: shaft hole positioning mechanism
111: first contact point 112: second contact point
113: third contact point 114: positioning main body
115: positioning of the axial drive member 116: positioning radial drive member
118: positioning guide assembly 119: first positioning connecting component
120: second positioning connecting member 140: measuring mechanism
141: aperture measuring member 142: measuring circumferential drive member
143: rotation shaft 144: measuring axial drive member
145: measuring the radial drive member 146: transmission member
147: measurement connection member 148: measurement guide assembly
180: the connecting mechanism 181: lower surface of the connecting mechanism
200: shaft hole 201: inner diameter surface of shaft hole
202: the cylinder 203: supporting frame
204: tray
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In the following description, for purposes of explanation, specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details set forth herein as are known to those of skill in the art. The following detailed description of the preferred embodiments of the invention, however, the invention may have other embodiments in addition to those detailed, and should not be construed as limited to the embodiments set forth herein.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, and that the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for purposes of illustration only and are not limiting.
Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".
In the following, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings, which illustrate representative embodiments of the invention and do not limit the invention.
As shown in fig. 2 to 7, the present invention provides a shaft hole detecting device 100 for a shaft hole 200. Specifically, the shaft hole detection apparatus 100 may be used for an engine including a bush having a shaft hole 200, and the shaft hole detection apparatus 100 may be capable of accurately detecting a diameter of the shaft hole 200.
As shown in fig. 1, the engine may be placed on a tray 204 and supported by a support frame 203. The engine may be a diesel engine. The engine may include a plurality of bearing bushes that are arranged at intervals in the axial direction of the shaft hole 200. Since the plurality of bearing pads are spaced apart from each other in the axial direction, it is difficult for the conventional measuring tool to measure the diameter of the shaft hole 200 located at the middle position of the engine. The shaft hole detection device 100 provided by the invention can enter the interior of an engine and accurately measure the diameter of the shaft hole 200 at the middle position of the engine.
Specifically, as shown in fig. 2, the shaft hole detection apparatus 100 includes a shaft hole positioning mechanism 110, a measurement mechanism 140, and a connection mechanism 180, and the connection mechanism 180 is used to connect the shaft hole positioning mechanism 110 and the measurement mechanism 140. The shaft hole positioning mechanism 110 and the measuring mechanism 140 can enter the interior of the cylinder block 202 of the engine.
The shaft hole positioning mechanism 110 is used to position the center of the shaft hole 200. The shaft hole positioning mechanism 110 is located at the side of the shaft hole 200. The shaft hole positioning mechanism 110 can be located between two adjacent bearing pads. The height direction of the shaft hole positioning mechanism 110 is substantially perpendicular to the axial direction of the shaft hole 200. The shaft hole detection device 100 is connected with the truss through a lifting appliance. The hanger is used to move the shaft hole detection device 100, and can move the shaft hole positioning mechanism 110 to the side of the shaft hole 200, so that the shaft hole positioning mechanism 110 can position the center of the shaft hole 200.
The shaft hole positioning mechanism 110 includes at least three positioning members (not shown) that are movable in the axial direction. At least three positioning members are arranged at intervals in the circumferential direction of the shaft hole 200. At least three positioning members are each movable into the shaft hole 200 in the axial direction.
The shaft hole positioning mechanism 110 is movable in the radial direction of the shaft hole 200. Specifically, the at least three positioning members are also movable in the radial direction of the shaft hole 200. At least three positioning members located in the shaft hole 200 are moved by the same distance in the radial direction. At least three positioning members may be radially arranged in a radial direction. As shown in connection with fig. 4, at least three positioning members intersect at a center point o. The "distance the positioning member moves in the radial direction" refers to the distance between the free end of the positioning member in the radial direction and the center point.
For example, the at least three positioning members may comprise a first positioning member, a second positioning member and a third positioning member, each of which is movable in the radial direction. The first, second and third positioning members may intersect at a center point o. The first, second and third positioning members each include a central end and a free end, the respective central ends of the first, second and third positioning members intersecting at a central point o, the free ends of the first, second and third positioning members each being movable in a radial direction.
The radial directions may include a first radial direction D1, a second radial direction D2, and a third radial direction D3, the first radial direction D1, the second radial direction D2, and the third radial direction D3 being mutually intersected with each other. Preferably, the included angles between the first radial direction D1, the second radial direction D2 and the third radial direction D3 may be equal, such as being 120 °.
The first positioning member moves in the first radial direction D1, and the free end of the first positioning member is movable in the first radial direction D1 toward the inner diameter surface 201 of the shaft hole 200. The free end of the first locating member may abut the location of the first contact point 111 of the inner diameter surface 201 of the shaft bore 200 in the first radial direction D1.
The second positioning member moves in the second radial direction D2, and the free end of the second positioning member can move in the second radial direction D2 toward the inner diameter surface 201 of the shaft hole 200. The free end of the second positioning member may abut the location of the second contact point 112 of the inner diameter surface 201 of the shaft bore 200 in the second radial direction D2.
The third positioning member moves in the third radial direction D3, and the free end of the third positioning member can move in the third direction toward the inner diameter surface 201 of the shaft hole 200. The free end of the third positioning member may abut the location of the third contact point 113 of the inner diameter surface 201 of the shaft bore 200 in the third radial direction D3.
The free ends of the first positioning member, the second positioning member and the third positioning member located in the shaft hole 200 all move the same distance in the radial direction. At this time, the center points o of the first, second, and third positioning members coincide with the central axis a of the shaft hole 200 (the central axis a of the shaft hole 200 is shown in fig. 3). Of course, the shaft hole positioning mechanism 110 may also include a greater number of positioning members, such as six, nine, etc., and the present embodiment is not intended to be limited in this regard.
Meanwhile, the shaft hole positioning mechanism 110 can move along the radial direction, and at least three positioning members which can move the same distance can be guaranteed to abut against the inner diameter surface 201 of the shaft hole 200, so that the at least three positioning members can move to positions abutting against the inner diameter surface 201 of the shaft hole 200 along the radial direction respectively.
For example, the first positioning member located in the shaft hole 200 moves a distance L1 in the first radial direction D1, the second positioning member located in the shaft hole 200 moves a distance L2 in the second radial direction D2, and the third positioning member located in the shaft hole 200 moves a distance L3 in the third radial direction D3, where L1 is L2 is L3. While the free ends of the first and second locating members may abut the inner diameter surface 201 of the shaft bore 200, the free end of the third locating member may be spaced apart from the inner diameter surface 201 of the shaft bore 200, i.e., the free end of the third locating member does not abut the inner diameter surface 201 of the shaft bore 200. At this time, the center point o is not located on the central axis a of the shaft hole 200. Therefore, in order to make the center point o be located on the central axis a of the shaft hole 200, the shaft hole positioning mechanism 110 can move in the radial direction to adjust the position of the third positioning member, so that the free end of the third positioning member is abutted against the inner diameter surface 201 of the shaft hole 200, thereby ensuring that the center point o is located on the central axis a of the shaft hole 200, and thus making the shaft hole positioning mechanism 110 able to position the center of the shaft hole 200.
The measuring mechanism 140 is used to measure the diameter of the shaft hole 200. The measuring mechanism is arranged between the two shaft holes 200. The spreader may move the measuring mechanism 140 to the side of the shaft hole 200. The measurement mechanism 140 includes a hole diameter measurement member 141, and the hole diameter measurement member 141 is movable into the shaft hole 200 in the axial direction of the shaft hole 200. The hole diameter measuring member 141 located in the shaft hole 200 is used to detect the diameter of the shaft hole 200. The moving manner of the aperture measuring member 141 will be described later.
The connecting mechanism 180 can connect the shaft hole positioning mechanism 110 and the measuring mechanism 140 together, so that the measuring mechanism 140 and the shaft hole positioning mechanism 110 move synchronously in the radial direction, thereby ensuring that the measuring mechanism 140 can accurately measure the diameter of the shaft hole 200.
According to the shaft hole detection device, the shaft hole detection device comprises a shaft hole positioning mechanism, a measuring mechanism and a connecting mechanism, wherein the shaft hole positioning mechanism comprises at least three positioning components, the at least three positioning components can move into a shaft hole along the axial direction, the shaft hole positioning mechanism can move along the radial direction, so that the at least three positioning components which are positioned in the shaft hole and move along the radial direction for the same distance respectively abut against the inner diameter surface of the shaft hole, the measuring mechanism comprises an aperture measuring component, the aperture measuring component can move into the shaft hole along the axial direction, the aperture measuring component positioned in the shaft hole is used for detecting the diameter of the shaft hole, and the connecting mechanism is used for connecting the shaft hole positioning mechanism and the measuring mechanism, so that the shaft hole positioning mechanism and the measuring mechanism synchronously move along the radial direction. Like this, shaft hole positioning mechanism and measuring mechanism along radial direction synchronous motion, shaft hole positioning mechanism can accurately fix a position the center in shaft hole to guarantee that measuring mechanism can accurately measure the diameter in shaft hole, realize automatic positioning, automatic measurement and automatic judgement, the operation is nimble, has improved measuring accuracy, has reduced manual operation error, has improved production efficiency and security in the engine production process.
Further, as shown in fig. 3, the shaft hole positioning mechanism 110 further includes a positioning main body 114 and a positioning axial driving member 115, and at least three positioning members are disposed in the positioning main body 114. The positioning body 114 may be configured to be hollow, and at least three positioning members may be located inside the positioning body 114 such that the at least three positioning members can be moved in the axial direction simultaneously. A positioning axial drive member 115 may be connected with the positioning body 114 to drive the at least three positioning members to move in the axial direction.
The positioning axial drive member 115 may be configured as a cylinder, which may include an output rod that telescopes in an axial direction. The output rod is connected with the positioning body 114 to drive the positioning body 114 to move in the axial direction. The positioning axial drive member 115 may be located above the positioning body 114 in the radial direction to save space.
The shaft hole positioning mechanism 110 further includes at least three positioning radial driving members 116, and the at least three positioning radial driving members 116 are respectively connected with the at least three positioning members for respectively driving the at least three positioning members to move in the radial direction. The positioning radial drive member 116 may be configured as a pneumatic cylinder located inside the positioning body 114 for driving the positioning member located inside the positioning body 114 to move in a radial direction. Of course, the positioning member located inside the positioning body 114 may also be moved in the axial direction to protrude out of the positioning body 114 into the shaft hole 200. The positioning member can also be moved in the radial direction of the shaft hole 200 at the same time as the positioning member protrudes out of the positioning body 114 in the axial direction of the shaft hole 200.
The top of the shaft hole positioning mechanism 110 is also connected with the lower surface 181 of the connecting mechanism 180. The shaft hole positioning mechanism 110 further includes a first positioning connecting member 119, and the first positioning connecting member 119 is used for connecting the positioning main body 114 and the connecting mechanism 180. The first positioning linking member 119 is located above the positioning main body 114 in the height direction of the shaft-hole detection device 100. Therefore, the space is saved, and the hoisting is convenient. The connection mechanism 180 may be configured in a substantially plate-like structure. The lower surface 181 of the connection mechanism 180 may be fixedly connected with the first positioning connection member 119. Whereby the shaft-hole positioning mechanism 110 and the connection mechanism 180 can be moved together in the radial direction.
The shaft hole positioning mechanism 110 further includes a positioning guide assembly 118, and the positioning guide assembly 118 may include a guide rail and a slider connected to the guide rail and capable of moving along the guide rail. The extending direction of the guide rail is substantially parallel to the axial direction of the shaft hole 200. The slider is connected to the positioning body 114 to ensure that the positioning body 114 moves in the axial direction.
The guide rail may be provided to the first positioning connection member 119. The cross-sectional shape of the first positioning coupling member 119 may be configured to be substantially L-shaped. In the present embodiment, the cross section is substantially parallel to the axial direction. The first positioning connection member 119 includes a first connection section and a second connection section, which are connected substantially vertically. The top of the first connection section is connected to the lower surface 181 of the connection mechanism 180 to reduce weight. The second connecting section is connected with the guide rail to provide enough moving distance for the sliding block.
The shaft hole positioning mechanism 110 further includes a second positioning connecting member 120, the second positioning connecting member 120 for connecting the output rod of the positioning axial driving member 115 and the positioning body 114. The cross-sectional shape of the second positioning connecting member 120 is substantially triangular. Preferably, the cross-sectional shape of the second positioning connecting member 120 is a right triangle. The second positioning connection member 120 includes a first right-angle section and a second right-angle section, which are vertically connected. A first right-angle segment may be connected with the slide and a second right-angle segment is connected with both the output rod of the positioning axial drive member 115 and the positioning body 114. In this way, the output rod of the positioning axial driving member 115 moves telescopically to drive the second positioning connecting member 120 and the positioning main body 114 to move simultaneously, thereby driving the at least three positioning members to move in the axial direction.
The structure of the measuring mechanism 140 is described below.
As shown in fig. 5 and 6, the aperture measuring member 141 may include a sensor movable in the axial direction of the shaft hole 200 and insertable into the shaft hole 200. The sensor may be configured as an electrical displacement sensor, which is also capable of automatic data analysis determination. A sensor located in the shaft hole 200 may contact the inner diameter surface 201 of the shaft hole 200, thereby detecting the diameter of the shaft hole 200.
To improve the accuracy of the detection, the sensor located in the shaft hole 200 may also be rotated in the circumferential direction of the shaft hole 200, thereby to detect the diameter at a plurality of locations on the inner diameter surface 201 of the shaft hole 200. Thus, the measuring mechanism 140 of the present invention changes the traditional three-point data acquisition into the circumferential point data acquisition, and ensures the stability and consistency of the measurement. At least three positioning members located in the shaft hole 200 and moving the same distance in the radial direction all abut against the inner diameter surface 201 of the shaft hole 200, thus ensuring that the axis of rotation of the sensor around the circumferential direction coincides with the central axis a of the shaft hole 200 to ensure the accuracy of the sensor in detecting the diameter of the shaft hole 200.
Specifically, the measuring mechanism 140 further includes a measuring circumferential direction driving member 142 and a rotating shaft 143, and the rotating shaft 143 is connected to the aperture measuring member 141. The measuring circumferential driving member 142 may be connected with the aperture measuring member 141 through a rotation shaft 143 for driving the aperture measuring member 141 to rotate in the circumferential direction. The measurement circumferential drive member 142 may be configured as a motor, which may be a precision rotary motor. The precision rotary motor may include an output shaft. An output shaft of the measuring circumferential driving member 142 may be connected with the rotating shaft 143 to drive the rotating shaft 143 to rotate. The rotation shaft 143 is coaxially disposed with the shaft hole 200. The center axis of the rotating shaft 143 coincides with the center axis a of the shaft hole 200 to ensure that the hole diameter measuring member 141 can rotate about the center axis a of the shaft hole 200, and the hole diameter measuring member 141 is in contact with the inner diameter surface 201 of the shaft hole 200, thereby ensuring the accuracy of the measurement of the hole diameter measuring member 141.
Preferably, the measuring circumferential driving member 142 and the rotation shaft 143 may be arranged side by side in a radial direction, thereby saving space. The measuring mechanism 140 further comprises a transmission member 146, the transmission member 146 being adapted to connect the measuring circumferential drive member 142 and the rotational shaft 143. The transmission member 146 may be configured as a pulley structure, one end of which is connected to the output shaft of the measuring circumference driving member 142, and the other end of which is connected to the rotating shaft 143, so that the output shaft of the measuring circumference driving member 142 drives the rotating shaft 143 to rotate synchronously, and thus the sensor to rotate.
Further, as shown in conjunction with fig. 7, the measuring mechanism 140 further includes a measuring axial driving member 144, and the measuring axial driving member 144 is connected with the aperture measuring member 141 for driving the aperture measuring member 141 to move in the axial direction. The measuring axial drive member 144 may be configured as a motor, which may include an output shaft. An output shaft of the measuring axial driving member 144 may be connected with the aperture measuring member 141 to drive the aperture measuring member 141 to move in the axial direction.
The measuring mechanism 140 further comprises a frame for connecting the measuring peripheral drive assembly and the rotary shaft 143 together to form a whole. Alternatively, the output shaft of the measuring axial drive member 144 may be configured as a lead screw. The measuring device 140 also comprises a measuring guide assembly 148, the measuring guide assembly 148 being configured as a wide-width guide rail. The frame may also be connected to an output shaft of the measurement axial drive member 144 through a measurement guide assembly 148, and the rotation of the output shaft of the measurement axial drive member 144 can drive the measurement circumferential drive member 142 and the rotation shaft 143 to move in the axial direction, and thus drive the aperture measurement member 141 to move in the axial direction.
The top of the measuring mechanism 140 is attached to the lower surface 181 of the attachment mechanism 180. Optionally, the measurement mechanism 140 further comprises a measurement connection member 147, the measurement connection member 147 for connecting the frame and the connection mechanism 180 together. The cross-sectional shape of the measurement connecting member 147 is substantially trapezoidal. The measurement connecting member 147 is located above the aperture measuring member 141 in the height direction of the shaft hole detecting apparatus 100, thereby saving space and facilitating hoisting. The top of the measurement connection member 147 is connected to the lower surface 181 of the connection mechanism 180. In this way, the measurement mechanism 140 and the shaft-hole positioning mechanism 110 are enabled to move synchronously in the radial direction.
Returning now to fig. 2, the shaft hole positioning mechanism 110 and the measuring mechanism 140 are respectively located on both sides of the shaft hole 200 in the axial direction. Preferably, the direction in which the positioning member of the shaft-hole positioning mechanism 110 moves in the axial direction is opposite to the direction in which the bore diameter measuring member 141 of the measuring mechanism 140 moves. The shaft hole 200 is located between the shaft hole positioning mechanism 110 and the measuring mechanism 140 in the axial direction.
The axial direction may include a first axial direction in which the positioning member moves toward the shaft hole 200 to enter the shaft hole 200 and a second axial direction in which the aperture measuring member 141 moves toward the shaft hole 200 to enter the shaft hole 200. The first axial direction and the second axial direction are opposite.
Further, as shown in fig. 6, the measuring mechanism 140 further includes a measuring radial driving member 145, and the measuring radial driving member 145 may be located inside the aperture measuring member 141. The measuring radial drive member 145 may be configured as a cylinder including an output rod. The output shaft of the measuring radial drive member 145 is connected to the sensor for driving the sensor in a radial direction. The measuring radial direction driving member 145 can drive the sensor to move in a radial direction toward the inner diameter surface 201 of the shaft hole 200 so that the sensor is in contact with the inner diameter surface 201 of the shaft hole 200.
Of course, when the sensor measurement is finished, the measurement radial driving member 145 can drive the sensor to move in the radial direction toward the direction of the central axis a of the shaft hole 200 to be reset. The measurement axial direction drive member 144 can drive the rotation shaft 143 and the measurement circumferential direction drive member 142 to move in the axial direction toward a direction away from the shaft-hole positioning mechanism 110 to be reset.
The operator can move the measuring mechanism 140 to the side of the shaft hole 200 by using the hanger, and further measure the hole diameter. After the measurement by the measuring mechanism 140 is completed, the operator may move the measuring mechanism 140 to the storage rack by the spreader. The hoist may be KBK (Kombiniert Kran) to hoist the measuring mechanism 140 and the shaft hole positioning mechanism 110 and to enable the measuring mechanism 140 and the shaft hole positioning mechanism 110 to move in both the axial direction and the radial direction. Of course, the lifting appliance can also lift the crankshaft and the bearing cover.
The shaft hole detection device provided by the invention has the advantages that the detection precision is high, the production consistency, cleanness and tidiness of products are ensured, the device can be suitable for detecting the shaft hole of a large or super-large engine, the problem that the super-large diesel engine wastes time and labor is solved, and the measurement efficiency and accuracy are improved. The shaft hole detection device comprises the automatic centering structure and the connecting mechanism, wherein the connecting mechanism can enable the shaft hole positioning mechanism and the measuring mechanism to synchronously move, and can effectively solve the measurement deviation caused by the load of the measuring mechanism. The shaft hole detection device comprises an automatic measurement structure, the measurement is realized in a rotating mode of a single electric displacement sensor, and the original three-point data measurement is changed into automatic circumferential data acquisition.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it should be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an axle hole detection device for the axle hole, its characterized in that, axle hole detection device includes:
the shaft hole positioning mechanism comprises at least three positioning components which can move into the shaft hole along the axial direction of the shaft hole, and can move along the radial direction of the shaft hole, so that the at least three positioning components which are positioned in the shaft hole and move for the same distance along the radial direction of the shaft hole are respectively abutted against the inner diameter surface of the shaft hole;
a measuring mechanism including an aperture measuring member movable into the shaft hole in the axial direction, the aperture measuring member located in the shaft hole for detecting a diameter of the shaft hole; and
the connecting mechanism is used for connecting the shaft hole positioning mechanism and the measuring mechanism so that the shaft hole positioning mechanism and the measuring mechanism synchronously move along the radial direction.
2. The shaft hole detecting apparatus according to claim 1, wherein the bore diameter measuring member includes a sensor, the sensor located in the shaft hole is in contact with the inner diameter surface, and the sensor is rotatable in a circumferential direction of the shaft hole.
3. The shaft hole detection device of claim 1, wherein the shaft hole positioning mechanism further comprises a positioning body and a positioning axial driving member, the positioning body is provided with the at least three positioning members therein, and the positioning axial driving member is connected with the positioning body to drive the at least three positioning members to move in an axial direction.
4. The shaft hole detecting device of claim 3, wherein the shaft hole positioning mechanism further comprises at least three positioning radial driving members, and the at least three positioning radial driving members are respectively connected with the at least three positioning members for respectively driving the at least three positioning members to move along the radial direction.
5. The shaft hole detecting device according to claim 2, wherein the measuring mechanism further includes a measuring circumferential driving member and a rotating shaft, the measuring circumferential driving member being connected to the bore measuring member through the rotating shaft for driving the bore measuring member to rotate in the circumferential direction.
6. The shaft hole detecting device according to claim 5, wherein the measuring mechanism further includes a measuring axial driving member connected with the bore measuring member for driving the bore measuring member to move in the axial direction.
7. The shaft hole detecting device of claim 6, wherein the measuring mechanism further comprises a measuring radial driving member connected with the sensor for driving the sensor to move in the radial direction.
8. The shaft hole detection device according to claim 5, wherein the measurement mechanism further includes a transmission member for connecting the measurement circumferential drive member and the rotation shaft, the rotation shaft being provided coaxially with the shaft hole, the measurement circumferential drive member being arranged side by side with the rotation shaft in the radial direction.
9. The shaft hole detecting apparatus according to claim 1, wherein a direction of movement of the positioning member in the axial direction is opposite to a direction of movement of the bore diameter measuring member.
10. The shaft hole detection device of claim 1, wherein the top of the shaft hole positioning mechanism and the top of the measuring mechanism are both connected with the lower surface of the connecting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261606.0A CN115077439A (en) | 2021-03-10 | 2021-03-10 | Shaft hole detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110261606.0A CN115077439A (en) | 2021-03-10 | 2021-03-10 | Shaft hole detection device |
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| Publication Number | Publication Date |
|---|---|
| CN115077439A true CN115077439A (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110261606.0A Pending CN115077439A (en) | 2021-03-10 | 2021-03-10 | Shaft hole detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116972715A (en) * | 2023-09-20 | 2023-10-31 | 万向钱潮股份公司 | Positioning tool and positioning method for shaft hole position degree detection |
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2021
- 2021-03-10 CN CN202110261606.0A patent/CN115077439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116972715A (en) * | 2023-09-20 | 2023-10-31 | 万向钱潮股份公司 | Positioning tool and positioning method for shaft hole position degree detection |
| CN116972715B (en) * | 2023-09-20 | 2023-12-19 | 万向钱潮股份公司 | Positioning tool and positioning method for shaft hole position degree detection |
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