CN215373843U - Detection device - Google Patents
Detection device Download PDFInfo
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- CN215373843U CN215373843U CN202120255616.9U CN202120255616U CN215373843U CN 215373843 U CN215373843 U CN 215373843U CN 202120255616 U CN202120255616 U CN 202120255616U CN 215373843 U CN215373843 U CN 215373843U
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Abstract
The embodiment of the application provides a detection device, includes: a base; a holder supported on the base for holding a workpiece; a first detector provided at a first position of the base, the first detector detecting an outer dimension of the workpiece, the first detector having a first detection accuracy; a second detector provided at a second position of the base, having an accommodation hole into which the workpiece is inserted, the second detector detecting an outer dimension of the workpiece and having a second detection accuracy higher than the first detection accuracy; the driver is connected with the gripper and drives the gripper to move; and a control circuit which communicates with at least the first detector and the driver, receives a detection result of the first detector on the workpiece, and outputs a control signal for controlling the driver according to the detection result.
Description
Technical Field
The application relates to the field of electromechanical technology, in particular to a detection device for detecting a workpiece.
Background
Crankshafts (Crankshaft) are an important part of mechanical equipment. Generally, a centerless grinder (center grinder) can be used to machine the shaft body of the crankshaft. When a centerless grinding machine is used for machining the crankshaft, the crankshaft can be driven to rotate by the guide wheel, and the grinding wheel rotates and is in contact with the crankshaft, so that the crankshaft is ground; and grinding the crank throw part of the crankshaft by using a cylindrical grinder cutting-in grinding mode and matching with an eccentric fixture.
The existing centerless grinding machine usually adopts a closed-loop control mode, that is, in the process of machining a crankshaft, the actual position of the grinding wheel walking is detected by a displacement sensor and fed back to a digital control (CNC) system, and the grinding wheel is controlled according to the measured result so as to control the machining diameter. The existing cylindrical plunge grinder generally adopts the control mode of the centerless grinder or adopts a non-contact or contact sensor to measure and feed back to a CNC system on line (online), so as to control the diameter of processing; the closed-loop control mode can improve the precision and the efficiency of grinding. The online measurement refers to measurement of a crankshaft clamped on an excircle cutting grinding machine.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
SUMMERY OF THE UTILITY MODEL
The inventors of the present application found that: in a conventional process of detecting a crankshaft, an operator needs to move the crankshaft, place the crankshaft in the receiving hole of the monitoring device, and take the crankshaft out of the receiving hole. Since the clearance between the crankshaft and the receiving hole is very small (e.g., less than 0.02 mm), the operator needs to take great care when moving the crankshaft to avoid the crankshaft contacting the receiving hole and damaging the crankshaft and the detecting device. Further, the diameter of the defective crankshaft may be larger than or equal to the inner diameter of the receiving hole, and the operator cannot know this in advance, so that the detection device may be seriously damaged when the crankshaft is inserted into the receiving hole. In addition, the operator removes the crankshaft, which increases labor costs.
In order to solve at least one of the above-described problems, an embodiment of the present application provides a detection apparatus that includes a first detector having a lower detection accuracy and a second detector having a higher detection accuracy, and moves a gripper according to a detection result of a workpiece by the first detector. Therefore, the workpiece can be detected in advance through the first detector, and the second detector with higher detection precision is prevented from being damaged due to the fact that the unqualified workpiece is inserted into the accommodating hole of the second detector. In addition, the work piece is moved by the clamper and the driver, so that the labor cost can be reduced.
According to an aspect of an embodiment of the present application, there is provided a detection apparatus, including:
a base;
a holder supported on the base for holding a workpiece;
a first detector provided at a first position of the base, the first detector detecting an outer dimension of the workpiece, the first detector having a first detection accuracy;
a second detector provided at a second position of the base, having an accommodation hole into which the workpiece is inserted, the second detector detecting an outer dimension of the workpiece and having a second detection accuracy higher than the first detection accuracy;
the driver is connected with the gripper and drives the gripper to move; and
and a control circuit which is communicated with at least the first detector and the driver, receives the detection result of the first detector on the workpiece, and outputs a control signal for controlling the driver according to the detection result.
According to another aspect of an embodiment of the present application, the control signal output by the control circuit to the driver causes the driver to drive the gripper to move to the second position when the first detector detects that the diameter of the workpiece is less than a first threshold.
According to another aspect of an embodiment of the present application, the driver includes: a horizontal direction driver and a vertical direction driver,
wherein the horizontal direction driver drives the vertical direction driver to move in the horizontal direction,
the vertical direction driver is mounted on the horizontal direction driver, the clamper is mounted on the vertical direction driver,
the vertical direction driver drives the gripper to move in a vertical direction relative to the horizontal direction driver.
According to another aspect of the embodiments of the present application, the detection apparatus further includes:
a bracket mounted to the base,
the bracket extends in a vertical direction and supports the horizontal direction driver.
According to another aspect of the embodiment of the present application, when the clamper moves to the second position, the control signal output by the control circuit causes the driver to drive the clamper to move downward to insert the workpiece into the receiving hole.
In accordance with another aspect of an embodiment of the present application, the control circuit is further in communication with the gripper,
the control circuit controls the gripper to release the gripping of the workpiece after the workpiece is inserted into the accommodation hole.
According to another aspect of an embodiment of the present application, the holder includes:
a floating block connected to a lower end of the vertical direction driver; and
a collet in the shape of a claw, the collet coupled to the slider, the collet moving in a horizontal direction relative to the vertical driver.
According to another aspect of an embodiment of the present application, the slider includes: a first structural layer connected to a lower end of the vertical direction driver, and having a first sliding groove extending in a first horizontal direction on a lower surface thereof;
a second structural layer, the upper surface of which is provided with a first embedding part embedded with the first sliding groove and sliding in the first sliding groove, the lower surface of the second structural layer is provided with a second sliding groove extending along a second horizontal direction, the first horizontal direction and the second horizontal direction are mutually vertical and are both vertical to the vertical direction,
the upper surface of the chuck is provided with a second embedded part which is embedded with the second sliding chute and slides in the second sliding chute.
According to another aspect of an embodiment of the present application, the first threshold is less than an inner diameter of the receiving hole.
In accordance with another aspect of an embodiment of the present application, the first detector measures the diameter of the workpiece using inductance,
the second detector is a pneumatic micrometer (air gauge),
the first detection accuracy is at least 0.005 mm,
the second detection accuracy is at least 1 micron.
The beneficial effects of the embodiment of the application are that: the detecting device includes a first detector having a lower detection accuracy and a second detector having a higher detection accuracy, and moves the clamper in accordance with a detection result of the workpiece by the first detector. Therefore, the workpiece can be detected in advance through the first detector, and the second detector with higher detection precision is prevented from being damaged due to the fact that the unqualified workpiece is inserted into the accommodating hole of the second detector. In addition, the work piece is moved by the clamper and the driver, so that the labor cost can be reduced.
Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the present application include many variations, modifications, and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a detection device according to an embodiment of the present application;
FIG. 2 is a schematic view of a slider according to an embodiment of the present application.
Detailed Description
The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the embodiments described, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.
In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "the" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
First aspect of the embodiments
A first aspect of an embodiment of the present application provides a detection apparatus. The detection device is used for measuring the external dimension of a workpiece. The workpiece may be a workpiece machined by a machine tool, for example, the workpiece may be a crankshaft machined by the machine tool.
FIG. 1 is a schematic view of a detection device.
As shown in fig. 1, the detection apparatus 100 includes: a base 1, a clamper 2, a first detector 3, a second detector 4, a driver 5, and a control circuit 6.
As shown in fig. 1, the base 1 may be a metal base or the like. The base 1 may be provided separately from a machine tool for machining a workpiece, i.e., the base 1 is not in contact with the machine tool. The machine tool may be, for example, a grinding machine.
The clamper 2 is supported on the base 1. The gripper 2 is used for gripping a workpiece.
The first detector 3 is arranged at a first position a1 of the base 1. The first detector 3 is capable of detecting the outer dimension of the workpiece, and the first detector 3 may have a first detection accuracy of, for example, at least 0.005 mm, that is, the first detector 3 is capable of detecting a dimension of at least 0.005 mm. As shown in fig. 1, the first detector 3 may have a housing portion 31, and in a case where a workpiece is housed in the housing portion 31, the first detector 3 may detect an outer dimension of the workpiece, which is, for example, a diameter. For example, the first detector 3 may measure the diameter of the workpiece using inductance.
The second detector 4 is arranged at a second position a2 of the base 1. The second detector 4 has an accommodation hole 41 into which the workpiece is inserted, and the second detector 4 is capable of detecting the outer dimension of the workpiece accommodated in the accommodation hole 41. The second detector 4 has a second detection accuracy which is higher than the first detection accuracy, for example, the second detection accuracy is at least 1 micrometer, i.e., the second detector 4 is capable of detecting a size of at least 1 micrometer. For example, the second detector 4 may be an air gauge (air gauge), and the second detector 4 may be capable of detecting parameters of the outer dimensions such as the diameter and taper (chemical degree) of the workpiece.
The driver 5 is connected to the clamper 2 and drives the clamper 2 to move.
The control circuit 6 may communicate with the first detector 3 and the driver 5 by wire or wirelessly. The control circuit 6 may receive a detection result of the first detector 3 for the workpiece, and output a control signal for controlling the driver 5 according to the detection result.
According to an embodiment of the first aspect of the present application, the detecting device includes a first detector having a lower detection accuracy and a second detector having a higher detection accuracy, and moves the gripper according to a detection result of the workpiece by the first detector. Therefore, the workpiece can be detected in advance through the first detector, and the second detector with higher detection precision is prevented from being damaged due to the fact that the unqualified workpiece is inserted into the accommodating hole of the second detector. In addition, the work piece is moved by the clamper and the driver, so that the labor cost can be reduced.
In at least one embodiment, when the first detector 3 detects that the diameter of the workpiece is less than the first threshold, the control signal output by the control circuit 6 to the driver 5 causes the driver 5 to drive the gripper 2 from the first position a1 to the second position a 2. Wherein the first threshold value is smaller than the inner diameter of the receiving hole 41, whereby in case the first detector 3 detects that the diameter of the workpiece is smaller than the first threshold value, it indicates that the workpiece can be placed in the receiving hole 41, and the driver 5 drives the clamper 2 to move the workpiece to the second position a2 where the second detector 4 is provided.
Further, when the first detector 3 detects that the diameter of the workpiece is greater than or equal to the first threshold value, the control signal output from the control circuit 6 to the driver 5 causes the driver 5 to drive the gripper 2 to move from the first position a1 to a third position (not shown). Thus, in the case where the first detector 3 detects that the diameter of the workpiece is greater than or equal to the first threshold value, it indicates that the workpiece is defective and cannot be placed in the accommodation hole 41, and thus the driver 5 drives the gripper 2 to move the workpiece to the third position, which is, for example, a position exclusively used for placing a defective workpiece.
As shown in fig. 1, the driver 5 includes: a horizontal direction driver 51 and a vertical direction driver 52.
The horizontal direction driver 51 extends in the horizontal direction for driving the vertical direction driver 52 to move in the horizontal direction.
The vertical direction driver 52 extends in the vertical direction, and the vertical direction driver 52 is movably mounted on the horizontal direction driver 51.
The clamper 2 is mounted on the lower end of the vertical direction driver 52. The vertical direction driver 52 drives the movement of the clamper 2 in the vertical direction relative to the horizontal direction driver 51.
For example, the horizontal direction driver 51 drives the vertical direction driver 52 to move the clamper 2 in the horizontal direction, and the vertical direction driver 52 drives the clamper 2 to move in the vertical direction. Thereby, the positions of the clamper 2 in the horizontal direction and the vertical direction can be adjusted by the driving of the horizontal direction driver 51 and the vertical direction driver 52.
In at least one embodiment, when the clamper 2 moves to the second position a2, the control signal output by the control circuit 6 causes the driver 5 (e.g., the vertical direction driver 52) to drive the clamper 2 to move downward, thereby inserting the workpiece clamped by the clamper 2 into the accommodation hole 41.
In at least one embodiment, the control circuitry 6 is also in wired or wireless communication with the gripper 2 to control the gripper 2 to grip or release from gripping a workpiece. For example, after a work gripped by the gripper 2 is inserted into the accommodation hole 41, the control circuit 6 controls the gripper 2 to release the gripping of the work. For another example, after the second detector 4 finishes inspecting the workpiece inserted into the accommodation hole 41, the control circuit 6 controls the driver 5 to drive the clamper 2 to the second position a2 and to drive the clamper 2 to a proper position in the vertical direction, and subsequently, the control circuit 6 controls the clamper 2 to clamp the workpiece and controls the driver 5 to drive the clamper 2 to move vertically upward, thereby removing the workpiece from the accommodation hole 41.
As shown in fig. 1, the clamper 2 includes: a floating block (floating block)21 and a cartridge 22.
Wherein the slider 21 is attached to the lower end of the vertical direction driver 52. The cartridge 22 is claw-shaped, the cartridge 22 is connected to the slider 21, and the cartridge 22 moves in the horizontal direction with respect to the vertical direction driver 52. For example, the collet 22 can be moved in the first horizontal direction X and the second horizontal direction Y shown in fig. 1, whereby, when the collet 22 grips the workpiece and inserts the workpiece into the receiving hole 41 or extracts the workpiece from the receiving hole 41 by the movement of the collet 22 in the vertical direction, the position of the collet 22 in the horizontal direction can be finely adjusted due to the floating piece 21, thereby preventing the workpiece or the inner wall of the receiving hole 41 from being damaged by the force between the workpiece and the receiving hole 41.
Further, in the present application, the first horizontal direction X and the second horizontal direction Y are perpendicular to each other, and both the first horizontal direction X and the second horizontal direction Y are perpendicular to the vertical direction Z.
FIG. 2 is a schematic view of slider 21.
As shown in fig. 2, the slider 21 includes: a first structural layer 211 and a second structural layer 212.
The first structural layer 211 is connected to a lower end of the vertical direction driver 52, and a lower surface of the first structural layer 211 has a first runner 2111 extending in the first horizontal direction X.
The upper surface of the second structure layer 212 has a first fitting portion 2121 that fits into the first runner 2111 and slides in the first runner 2111. The lower surface of the second structural layer 212 has a second runner 2122 extending in the second horizontal direction Y.
The upper surface of the collet 22 has a second fitting portion 221 fitted into the second slide groove 2122 and sliding in the second slide groove 2122.
Thereby, the first structural layer 211 is fixed to the lower end of the vertical driver 52, the second structural layer 212 can move in the first horizontal direction X through the first fitting portion 2121 and the first runner 2111, the chuck 22 can move in the second horizontal direction Y through the second fitting portion 221 and the second runner 2122, and the position of the chuck 22 in the horizontal direction with respect to the vertical driver 52 can be adjusted.
Note that fig. 2 shows only one embodiment of the slider 21, and the present application is not limited to this, and the slider 21 may have another structure.
As shown in fig. 1, the detection apparatus 100 further includes: a support 7. The bracket 7 is mounted to the base 1, and the bracket 7 extends in the vertical direction. The bracket 7 is connected to the horizontal direction driver 51, and supports the horizontal direction driver 51 such that the horizontal direction driver 51 extends in the horizontal direction. For example, the horizontal direction driver 51 extends in the first horizontal direction X.
According to an embodiment of the first aspect of the present application, the detecting device 100 includes a first detector having a lower detection accuracy and a second detector having a higher detection accuracy, and moves the gripper according to a detection result of the workpiece by the first detector. Therefore, the workpiece can be detected in advance through the first detector, the second detector with high detection precision is prevented from being damaged due to the fact that the unqualified workpiece is inserted into the accommodating hole of the second detector, and in addition, the workpiece is moved through the clamp and the driver, and labor cost can be reduced. Further, by providing the slider 21, the position of the workpiece in the horizontal direction can be finely adjusted, thereby preventing the workpiece from being damaged.
The control circuit 6 in the functional block diagram described with respect to fig. 1 may be implemented as a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein. The control circuit 6 described with respect to fig. 1 may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP communication, or any other such configuration.
The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the teachings herein and are within the scope of the present application.
Claims (10)
1. A detection device, characterized in that the detection device comprises:
a base;
a holder supported on the base for holding a workpiece;
a first detector provided at a first position of the base, the first detector detecting an outer dimension of the workpiece, the first detector having a first detection accuracy;
a second detector provided at a second position of the base, having an accommodation hole into which the workpiece is inserted, the second detector detecting an outer dimension of the workpiece and having a second detection accuracy higher than the first detection accuracy;
the driver is connected with the gripper and drives the gripper to move; and
and a control circuit which is communicated with at least the first detector and the driver, receives the detection result of the first detector on the workpiece, and outputs a control signal for controlling the driver according to the detection result.
2. The detection apparatus of claim 1,
the control signal output by the control circuit to the driver causes the driver to drive the gripper to move to the second position when the first detector detects that the diameter of the workpiece is less than a first threshold.
3. The detection apparatus of claim 2,
the driver includes: a horizontal direction driver and a vertical direction driver,
wherein the horizontal direction driver drives the vertical direction driver to move in the horizontal direction,
the vertical direction driver is mounted on the horizontal direction driver, the clamper is mounted on the vertical direction driver,
the vertical direction driver drives the gripper to move in a vertical direction relative to the horizontal direction driver.
4. The sensing device of claim 3, further comprising:
a bracket mounted to the base,
the bracket extends in a vertical direction and supports the horizontal direction driver.
5. The detection apparatus of claim 3,
when the clamper moves to the second position, the control signal output by the control circuit enables the driver to drive the clamper to move downwards to insert the workpiece into the accommodating hole.
6. The detection apparatus of claim 3,
the control circuit is also in communication with the gripper,
the control circuit controls the gripper to release the gripping of the workpiece after the workpiece is inserted into the accommodation hole.
7. The detection apparatus of claim 3,
the holder includes:
a slider connected to a lower end of the vertical direction driver; and
a collet in the shape of a claw, the collet coupled to the slider, the collet moving in a horizontal direction relative to the vertical driver.
8. The detection apparatus of claim 7,
the slider includes: a first structural layer connected to a lower end of the vertical direction driver, and having a first sliding groove extending in a first horizontal direction on a lower surface thereof;
a second structural layer, the upper surface of which is provided with a first embedding part embedded with the first sliding groove and sliding in the first sliding groove, the lower surface of the second structural layer is provided with a second sliding groove extending along a second horizontal direction, the first horizontal direction and the second horizontal direction are mutually vertical and are both vertical to the vertical direction,
the upper surface of the chuck is provided with a second embedded part which is embedded with the second sliding chute and slides in the second sliding chute.
9. The detection apparatus of claim 2,
the first threshold is less than an inner diameter of the receiving hole.
10. The detection apparatus of claim 1,
the first detector measures a diameter of the workpiece using inductance,
the second detector is a pneumatic micrometer,
the first detection accuracy is at least 0.005 mm,
the second detection accuracy is at least 1 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120255616.9U CN215373843U (en) | 2021-01-29 | 2021-01-29 | Detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120255616.9U CN215373843U (en) | 2021-01-29 | 2021-01-29 | Detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215373843U true CN215373843U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120255616.9U Active CN215373843U (en) | 2021-01-29 | 2021-01-29 | Detection device |
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| Country | Link |
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| CN (1) | CN215373843U (en) |
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2021
- 2021-01-29 CN CN202120255616.9U patent/CN215373843U/en active Active
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