CN117109398A - Screw thread detection mechanism and detection method thereof - Google Patents
Screw thread detection mechanism and detection method thereof Download PDFInfo
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- CN117109398A CN117109398A CN202311109054.7A CN202311109054A CN117109398A CN 117109398 A CN117109398 A CN 117109398A CN 202311109054 A CN202311109054 A CN 202311109054A CN 117109398 A CN117109398 A CN 117109398A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 77
- 238000001514 detection method Methods 0.000 title claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/204—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures of screw-threads
Abstract
The invention discloses a thread detection mechanism and a detection method thereof, wherein the thread detection mechanism comprises: the device comprises a rotary table, a frame, a go gauge mechanism and a stop gauge mechanism, wherein the rotary table is arranged on a machine base in a driving mode, a plurality of jig grooves for placing workpieces are formed in the rotary table, a frame is arranged above the machine base, and the go gauge mechanism or/and the stop gauge mechanism corresponding to the jig grooves in the rotary table are arranged on the frame in a driving mode; the go gauge mechanism or the no-go gauge mechanism respectively comprises a driving motor which is arranged on the frame in a driving way, and the driving end of the driving motor is in driving connection with the measuring part through a coupler, a manual torque device and a transmission sleeve; a fixed spring is arranged between the manual torque device and the transmission sleeve, and a bottom spring is arranged between the transmission sleeve and the measuring part. The invention discloses a screw thread detection mechanism which is simple in structure, economical and practical.
Description
Technical Field
The invention relates to the technical field of machining detection, in particular to a thread detection mechanism and a thread detection method.
Background
Tools such as a screw spindle lathe, a threading die, a screw tap and the like in the prior art provide a technical basis for the production of threaded pieces. Thread standardization is gradually established after the industrial revolution. A thread gauge is a tool for measuring the size and shape of threads, the advent of which greatly improves the accuracy and efficiency of thread detection.
With the progress of technology, automated thread inspection technology has rapidly developed. Modern thread detection equipment adopts advanced sensor technology, image processing and data analysis algorithm, and can realize high-precision and high-efficiency thread quality detection. In general, thread inspection techniques have been developed at various stages of human history, from initial practical experience to standardization, to modern automated inspection techniques, to continuously improve thread quality control and production efficiency.
At present, most of automatic thread detection mechanisms in the market are thread go-no-go gauges controlled by a servo motor, and measuring mechanisms are carried out through servo motor data feedback. However, most of the time, the specific numerical value is not needed to be known, so that the resource waste is not caused, and therefore, a screw thread detection mechanism with a simple structure, economy and practicability is needed to be developed.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the thread detection mechanism with simple structure, economy, practicability and action protection and the detection method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: a thread detection mechanism comprising: the device comprises a rotary table, a frame, a go gauge mechanism and a stop gauge mechanism, wherein the rotary table is arranged on a machine base in a driving mode, a plurality of jig grooves for placing workpieces are formed in the rotary table, a frame is arranged above the machine base, and the go gauge mechanism or/and the stop gauge mechanism corresponding to the jig grooves in the rotary table are arranged on the frame in a driving mode; the go gauge mechanism or the no-go gauge mechanism respectively comprises a driving motor which is arranged on the frame in a driving way, and the driving end of the driving motor is in driving connection with the measuring part through a coupler, a manual torque device and a transmission sleeve; a fixed spring is arranged between the manual torque device and the transmission sleeve, and a bottom spring is arranged between the transmission sleeve and the measuring part.
In a preferred scheme of the invention, the coupling comprises a connecting end and a first outer shell, one end of the connecting end is in driving connection with the driving end of the driving motor, and the other end of the connecting end is in driving connection with one end of the first outer shell.
In a preferred aspect of the invention, the manual torque device comprises a one-way bearing assembly engaged with the first outer housing and a manual device; one end of the manual device is penetrated into the first outer shell and is connected with the first outer shell; the other end of the manual device is arranged in the unidirectional bearing assembly in a penetrating way and is in driving connection with a torque output end in the unidirectional bearing assembly; and a disc spring is arranged between the manual adjustment device and the unidirectional bearing assembly, and the torque output end is in driving connection with the transmission sleeve.
In a preferred embodiment of the present invention, the one-way bearing assembly includes a second outer housing, and a first bearing and a second bearing respectively embedded in two ends of the second outer housing.
In a preferred scheme of the invention, a connecting end connected with a coupler in a driving way is embedded at the upper end of the first outer shell, a manual device is penetrated in a cavity at the lower end of the first outer shell, the manual device adopts a bolt rod, the large end part of the manual device is limited in the cavity at the lower end, the screwing end of the manual device penetrates out of the lower end of the first outer shell and is screwed with a torque output end embedded in a one-way bearing assembly, and the torque output end adopts a threaded sleeve; and the torque output end is in driving connection with the second bearing, and the first bearing is in driving connection with the first shell.
In a preferred scheme of the invention, the machine base is also provided with a limiting component corresponding to the jig groove on the turntable, the driving component comprises a driving part arranged on the machine base and a pushing part in driving connection with the driving part, and the driving part drives the pushing part to laterally stretch and push relative to the jig groove.
In a preferred scheme of the invention, the transmission sleeve is a hollow pipe body, one end of the transmission sleeve, which is in butt joint with the torque output end, is provided with an upper limiting hole, and the torque output end is in limiting connection with the upper limiting hole through a first limiting shaft; one end of the movable butt joint of the transmission sleeve and the measuring part is provided with a lower limit groove in a longitudinal arrangement, and the measuring part is in limit connection with the lower limit groove through a second limit shaft.
In a preferred embodiment of the invention, the measuring part is provided with a thread protruding key for detecting the thread on the workpiece.
In a preferred scheme of the invention, the detection method of the thread detection mechanism comprises the following steps:
the rotary table of the detected object rotates to the position below the go gauge mechanism or the no-go gauge mechanism, the rear side cylinder drives the go gauge mechanism or the no-go gauge mechanism to fall, and the measuring part rebounds upwards in the axial direction due to the action of the bottom spring, so that the lower part of the workpiece is propped up to die to form a pre-pressing force; the measuring part starts to rotate under the drive of the go gauge mechanism or the no-go gauge mechanism, and the measuring part is connected with the go gauge mechanism through a spline due to the coupler arranged above the measuring part, so that the measuring part can enter a workpiece to be detected under the condition of rotation; because the fixed spring is in a static state, the measuring part and the manual torque device relatively rotate, the measuring part is led to the bottom of the workpiece to be detected, and the workpiece is static and rigidly prevented from moving after the measuring part reaches the bottom of the workpiece, so that the workpiece cannot rotate at the moment; the driving motor outputs torque exceeding the torque set by the manual torque device through the coupler, the manual torque device can slip, at the moment, the introduced distance of the detection spline of the measuring part is converted into the introduced number of turns, and the detection of the go gauge is completed.
The invention solves the defects existing in the background technology:
the screw thread detection mechanism disclosed by the invention has the advantages of simple structure, economy and practicability, low cost and high reliability; the mechanical structure is adopted, so that the maintainability is good, and the severe environment is resistant. Specific detail parameters are not needed to be known, and only whether the product is qualified or not is concerned.
The action protection is characterized in that the measuring part starts to rotate under the drive of the go gauge mechanism or the no-go gauge mechanism, and the measuring part is connected with the go gauge mechanism through a spline due to the coupler arranged above the measuring part, so that the measuring part can enter a detected workpiece under the condition of rotation. Because the fixed spring is in a static state, the measuring part and the manual torque device relatively rotate, the measuring part is led to the bottom of the workpiece to be detected, and the workpiece is static and rigidly prevented from moving after the measuring part reaches the bottom of the workpiece, so that the workpiece cannot rotate at the moment. The driving motor outputs torque exceeding the torque set by the manual torque device through the coupler, the manual torque device can slip, and at the moment, the detection spline of the measuring part is introduced into the distance to finish the detection of the go gauge or the no-go gauge.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of an isometric view of a preferred embodiment of the invention;
FIG. 2 is a schematic elevational view of the preferred embodiment of the present invention;
FIG. 3 is a schematic side elevational view of a preferred embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the portion A of FIG. 3 in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic view of the structure of a combined one-way bearing in a preferred embodiment of the present invention;
the device comprises a machine base, a machine frame, 3 parts, a turntable, 31-jig grooves, 4-workpieces, 5 parts, a go gauge mechanism, 6 parts, a go gauge mechanism, 61 parts, a driving motor, 62 parts, a coupler, 63 parts, a manual torque device, 64 parts, a fixed spring, 65 parts, a bottom spring, 66 parts, a measuring part, 67 parts, a transmission sleeve, 671 parts, an upper limiting hole, 672 parts, a lower limiting groove, 621 parts, a connecting end, 622 parts, an outer shell I, 623 parts, a manual adjustment device, 624 parts, a one-way bearing assembly, 625 parts, a torque output end, 626 parts, a disc spring, 681 parts, an outer shell II, 682 parts, 683 parts, a bearing II, 7 parts, limiting parts, 71 parts, a driving part and 72 parts.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations of the basic structure of the invention, which are presented only by way of illustration, and thus show only the structures that are relevant to the invention.
Example 1
As shown in fig. 1 to 5, a thread detection mechanism includes: the rotary table 3 arranged on the machine base 1 is driven, a plurality of jig grooves 31 respectively used for placing workpieces 4 are arranged on the rotary table 3, a machine frame 2 is arranged above the machine base 1, and a go gauge mechanism 5 or/and a no-go gauge mechanism 6 corresponding to the jig grooves 31 on the rotary table 3 are arranged on the machine frame 2 in a driving mode. The machine base 1 is also provided with a limiting component 7 corresponding to the jig groove 31 on the turntable 3, the driving part 71 comprises a driving part 71 arranged on the machine base 1 and a pushing part 72 in driving connection with the driving part 71, and the driving part 71 drives the pushing part 72 to stretch and push laterally relative to the jig groove 31.
The go gauge mechanism 5 or the go gauge mechanism 6 respectively comprises a driving motor 61 which is arranged on the frame 2 in a driving way, and the driving end of the driving motor 61 is in driving connection with a measuring part 66 through a coupler 62, a manual torque device 63 and a transmission sleeve 67; a fixed spring 64 is arranged between the manual torque device 63 and the transmission sleeve 67, and a bottom spring 65 is arranged between the transmission sleeve 67 and the measuring part 66. And the measuring portion 66 is provided with a thread protruding key for detecting the thread on the work 4. And the bottom spring 65 is sleeved on the upper end part of the measuring part 66, namely, the elastic space is arranged between the lower end detection end of the measuring part 66 and the transmission sleeve 67.
The coupling 62 includes a connection end 621 and an outer housing 622, one end of the connection end 621 is in driving engagement with the driving end of the driving motor 61, and the other end of the connection end 621 is in driving engagement with one end of the outer housing 622.
Specifically, the manual torque device 63 includes a unidirectional bearing assembly 624 engaged with the first outer housing 622 and a manual device, one end of the manual device is inserted into the first outer housing 622 and engaged with the first outer housing 622, the other end of the manual device 623 is inserted into the unidirectional bearing assembly 624 and engaged with the torque output end 625 in a driving manner, a disc spring 626 is further disposed between the manual adjustment device 623 and the unidirectional bearing assembly 624, and the torque output end 625 is engaged with the transmission sleeve 67 in a driving manner. The unidirectional bearing assembly 624 includes a second outer housing 681, and a first bearing 682 and a second bearing 683 respectively embedded in two ends of the second outer housing 681. The upper end of the first outer shell 622 is embedded with a connecting end 621 in driving connection with the coupling 62, the lower end cavity of the first outer shell 622 is internally provided with a manual device 623 in a penetrating way, the manual device 623 adopts a bolt rod, the large end of the manual device 623 is limited in the lower end cavity, the screwing end of the manual device 623 penetrates out of the lower end of the first outer shell 622 and is screwed with the torque output end 625 embedded in the unidirectional bearing assembly 624, and the torque output end 625 adopts a threaded sleeve; and the torque output 625 is in driving engagement with the bearing two 683, the bearing one 682 is in driving connection with the outer housing one 622.
The transmission sleeve 67 is a hollow pipe body, one end of the transmission sleeve 67, which is abutted against the torque output end 625, is provided with an upper limit hole 671, and the torque output end 625 is in limit connection with the upper limit hole 671 through a first limit shaft; one end of the transmission sleeve 67, which is movably abutted with the measuring part 66, is provided with a strip-shaped lower limiting groove 672 which is longitudinally arranged, and the measuring part 66 is in limiting engagement with the lower limiting groove 672 through a limiting shaft II. Further, the first limiting shaft and the second limiting shaft are also connected through two ends of the fixing spring 64.
Example two
The first embodiment is based on the replacement of the measuring part 66, that is, the measuring part 66 is provided with a thread dimension of a thread protruding key for detecting the thread on the work 4. Specifically, the sizes of the go gauge and the no-go gauge teeth are different. The no-go gauge can not be screwed in after rotating for two circles.
Example III
On the basis of the first embodiment, a detection method of a screw thread detection mechanism includes:
the turntable 3 of the detected article rotates to the lower part of the go gauge mechanism 5 or the no-go gauge mechanism 6, the rear side cylinder drives the go gauge mechanism 5 or the no-go gauge mechanism 6 to fall down, and the measuring part 66 rebounds upwards in the axial direction due to the action of the bottom spring 65, so that the lower part of the workpiece 4 is propped up to die at the moment, and a pre-pressure is formed.
The measuring part 66 starts to rotate under the drive of the go gauge mechanism 5 or the no-go gauge mechanism 6, and the coupler 62 is arranged above the measuring part 66 and the go gauge mechanism 5 are connected through a spline, so that the measuring part 66 can enter the workpiece 4 to be detected under the condition of rotation.
Since the fixed spring 64 is in a stationary state, the measuring part 66 and the manual torque device 63 relatively rotate, and the measuring part 66 is led to the bottom of the workpiece 4 to be inspected, and after the workpiece 4 reaches the bottom of the workpiece 4, the workpiece 4 is prevented from moving due to the stationary state, and cannot rotate at this time.
The driving motor 61 outputs torque exceeding the torque set by the manual torque device 63 through the coupling 62, the manual torque device 63 will slip, at this time, the introduced distance of the detection spline of the measuring part 66 is converted into the introduced number of turns, and the detection of the go gauge is completed.
Further, the backward reverse manual torque device 63 is disengaged, and the backward direction is the stop end of the combined unidirectional bearing, so that the whole is rotated, a full torque is rotated out, and after the full torque is rotated out, the rear cylinder is lifted to drive the go gauge mechanism 5 to lift, and the turntable 3 drives the material to rotate.
Example IV
On the basis of the third embodiment, the detection method of the thread detection mechanism further includes:
after the detection of the go gauge is completed, the external camera is used for shooting, the screw teeth of the workpiece 4 are visually detected, whether the screw teeth of the workpiece 4 are damaged or not is detected, and if the damage exists, the go gauge detection is not performed. If no damage is caused, the no-go gauge is detected, the no-go gauge structure is the same as the general gauge principle, and when the no-go gauge structure rotates to the degree that the no-go gauge can be screwed in, slipping occurs, at the moment, the spline introducing distance is measured, and the number of screwing turns of the threads can be calculated. And if the number of the screw-in turns of the go gauge and the no-go gauge meet the judgment set by the logic circuit, the go gauge and the no-go gauge are regarded as qualified products.
Working principle:
when the turntable 3 of the detected article rotates below the go gauge, the rear cylinder drives the go gauge mechanism 5 to fall, and the measuring part 66 slightly rebounds upwards in the axial direction due to the bottom spring 65, and a pre-pressure is formed due to the fact that the lower part of the workpiece 4 is propped up.
Then the measuring part 66 starts to rotate under the drive of the go gauge mechanism 5, and the coupler 62 is arranged above the measuring part 66 and the go gauge mechanism 5 are connected through a spline, so that under the condition of rotation, if the lower thread can ensure that the go gauge enters, the go gauge can enter the workpiece 4 to be detected in a specific time.
And in normal circumstances it is stationary due to the presence of the fixed spring 64. After which relative rotation takes place, the measuring part 66 is introduced all the way to the bottom of the workpiece 4 to be inspected, and after reaching the bottom of the workpiece 4, the workpiece 4 is prevented from rotating because it is stationary and rigid against movement.
When the torque output by the motor through the coupler 62 exceeds the torque set by the manual torque device 63, the manual torque device 63 acts, so that the slip is generated at the seam allowance, the introduced distance of the spline is detected, the introduced number of turns can be converted, and the detection of the go gauge is completed.
The backward manual torque device 63 is disengaged, and the backward manual torque device is a stop end of the combined one-way bearing, so that the combined one-way bearing integrally rotates, a full torque unscrewing is performed, and after the full torque unscrewing, a rear cylinder is lifted to drive the go gauge mechanism 5 to lift, and the turntable 3 drives the materials to rotate.
In addition, the screw thread can be visually inspected by photographing with an external camera, whether the thread mouth of the workpiece 4 is damaged or not is inspected, and if the damage is detected, no-go gauge inspection is performed. If no damage is caused, the no-go gauge is detected, the no-go gauge structure is the same as the go gauge, and when the no-go gauge rotates to the extent that screwing cannot be performed, slipping occurs, at the moment, the spline introducing distance is measured, and the number of screwing turns of the threads can be calculated. And if the number of the screw-in turns of the go gauge and the no-go gauge meet the judgment set by the logic circuit, the go gauge and the no-go gauge are regarded as qualified products.
Principle of manual torque device 63: the connecting end 621 is rigidly connected to the first outer housing 622, the manual adjustment device 623 is threadably connected to the torque output end 625, and the manual adjustment device 623 presses the disc spring 626 to be frictionally connected to the first outer housing 622, so that the torque of the connection is adjustable depending on the degree of the threaded connection to compress the disc spring 626. When it reverses, the outer housing one 622 and the torque output 625 are both connected to the inner race of the one-way bearing assembly 624 and cannot move in the reverse direction, so that torque can be transferred in its entirety.
Principle of the one-way bearing assembly 624: in forward rotation, bearing one 682 and bearing two 683 may rotate separately. When the bearing one 682 and the bearing two 683 rotate reversely, the outer shell two 681 rotate in the same direction together, and torque is transmitted. Bearing one 682, bearing two 683, is a one-way bearing. Specifically, the sizes of the go gauge and the no-go gauge teeth are different. The no-go gauge can not be screwed in after rotating for two circles. The bearing one 682 and the bearing two 683 of the one-way bearing assembly 624 rely on friction and the bearing press presses directly into the sleeve.
In view of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (9)
1. A thread detection mechanism, comprising: the device comprises a rotary table (3) arranged on a machine base (1) in a driving mode, wherein a plurality of jig grooves (31) used for placing workpieces (4) are formed in the rotary table (3), a machine frame (2) is arranged above the machine base (1), and a go gauge mechanism (5) or/and a no-go gauge mechanism (6) corresponding to the jig grooves (31) in the rotary table (3) are arranged on the machine frame (2) in a driving mode;
the go gauge mechanism (5) or the no-go gauge mechanism (6) respectively comprises a driving motor (61) which is arranged on the frame (2), and the driving end of the driving motor (61) is in driving connection with a measuring part (66) through a coupler (62), a manual torque device (63) and a transmission sleeve (67); a fixed spring (64) is arranged between the manual torque device (63) and the transmission sleeve (67), and a bottom spring (65) is arranged between the transmission sleeve (67) and the measuring part (66).
2. A thread detection mechanism as claimed in claim 1, wherein: the coupling (62) comprises a connecting end (621) and an outer shell body I (622), one end of the connecting end (621) is in driving engagement with the driving end of the driving motor (61), and the other end of the connecting end (621) is in driving engagement with one end of the outer shell body I (622).
3. A thread detection mechanism as claimed in claim 2, wherein: the manual torque device (63) comprises a one-way bearing assembly (624) engaged with the first outer housing (622) and a manual device (67);
and one end of the manual device (623) is penetrated into the first outer shell (622) and is connected with the first outer shell (622); the other end of the manual device (623) is penetrated in the one-way bearing assembly (624) and is in driving engagement with a torque output end (625) in the one-way bearing assembly (624); and a disc spring (626) is further arranged between the manual adjustment device (623) and the one-way bearing component (624), and the torque output end (625) is in driving connection with the transmission sleeve (67).
4. A thread detection mechanism as claimed in claim 3, wherein: the unidirectional bearing assembly (624) comprises a second outer shell (681), and a first bearing (682) and a second bearing (683) respectively embedded in two ends of the second outer shell (681).
5. A thread detection mechanism as claimed in claim 1, wherein: the upper end of the first outer shell (622) is embedded with a connecting end (621) in driving connection with the coupling (62), the lower end cavity of the first outer shell (622) is internally provided with a manual device (623) in a penetrating way, the manual device (623) adopts a bolt rod, the large end part of the manual device (623) is limited in the lower end cavity, and the screwing end of the manual device (623) is screwed with the torque output end (625) embedded in the unidirectional bearing assembly (624) after penetrating out of the lower end of the first outer shell (622), and the torque output end (625) adopts a threaded sleeve;
and the torque output end (625) is in driving engagement with the bearing two (683), and the bearing one (682) is in driving connection with the outer shell one (622).
6. A thread sensing mechanism as recited in claim 4, wherein: the machine seat (1) is further provided with a limiting component (7) corresponding to the jig groove (31) in the rotary table (3), the driving component (7) comprises a driving part (71) arranged on the machine seat (1), and a pushing part (72) in driving connection with the driving part (71), and the driving part (71) drives the pushing part (72) to stretch and push laterally relative to the jig groove (31).
7. A thread sensing mechanism as recited in claim 5, wherein: the transmission sleeve (67) is a hollow pipe body, one end of the transmission sleeve (67) which is in butt joint with the moment output end (625) is provided with an upper limit hole (671), and the moment output end (625) is in limit joint with the upper limit hole (671) through a first limit shaft;
one end of the transmission sleeve (67) movably butted with the measuring part (66) is provided with a strip-shaped lower limiting groove (672) which is longitudinally arranged, and the measuring part (66) is in limiting connection with the lower limiting groove (672) through a limiting shaft II.
8. A thread detection mechanism as claimed in claim 1, wherein: and a thread convex key for detecting the thread on the workpiece (4) is arranged on the measuring part (66).
9. A detection method of a thread detection mechanism is characterized in that: a detection method implemented by the thread detection mechanism according to any one of claims 1 to 8, comprising the steps of:
the rotary table (3) of the detected object rotates to the lower part of the go gauge mechanism (5) or the no-go gauge mechanism (6), the rear cylinder drives the go gauge mechanism (5) or the no-go gauge mechanism (6) to fall down, and the measuring part (66) rebounds upwards in the axial direction due to the action of the bottom spring (65), so that the lower part of the workpiece (4) is propped up to die to form a pre-pressure;
the measuring part (66) starts to rotate under the drive of the go gauge mechanism (5) or the no-go gauge mechanism (6), and as the coupler (62) is arranged above the measuring part (66) and the go gauge mechanism (5) are connected through a spline, the measuring part (66) can enter a detected workpiece (4) under the condition of rotation;
because the fixed spring (64) is in a static state, the measuring part (66) and the manual torque device (63) relatively rotate, the measuring part (66) is led to the bottom of the workpiece (4) to be detected, and the workpiece (4) is stopped from moving rigidly after the measuring part reaches the bottom of the workpiece (4) and cannot rotate at the moment;
the driving motor (61) outputs torque exceeding the torque set by the manual torque device (63) through the coupler (62), the manual torque device (63) can slip, at the moment, the introduced distance of the detection spline of the measuring part (66) is converted into the introduced number of turns, and the detection of the go gauge is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311109054.7A CN117109398A (en) | 2023-08-31 | 2023-08-31 | Screw thread detection mechanism and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311109054.7A CN117109398A (en) | 2023-08-31 | 2023-08-31 | Screw thread detection mechanism and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117109398A true CN117109398A (en) | 2023-11-24 |
Family
ID=88799774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311109054.7A Pending CN117109398A (en) | 2023-08-31 | 2023-08-31 | Screw thread detection mechanism and detection method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117109398A (en) |
-
2023
- 2023-08-31 CN CN202311109054.7A patent/CN117109398A/en active Pending
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