CN109226646B - Automatic hammer riveting rivet inlet and upsetting head height online detection method and device - Google Patents
Automatic hammer riveting rivet inlet and upsetting head height online detection method and device Download PDFInfo
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- CN109226646B CN109226646B CN201811126574.8A CN201811126574A CN109226646B CN 109226646 B CN109226646 B CN 109226646B CN 201811126574 A CN201811126574 A CN 201811126574A CN 109226646 B CN109226646 B CN 109226646B
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- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000006073 displacement reaction Methods 0.000 claims abstract description 34
- 238000009434 installation Methods 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000012937 correction Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000035945 sensitivity Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241001079814 Symphyotrichum pilosum Species 0.000 description 1
- 235000004224 Typha angustifolia Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Insertion Pins And Rivets (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides an automatic rivet hole and upsetting head height online detection method and device, comprising an installation bottom plate, an outer top sleeve component, an inner ejector rod component, a detection device and a sliding device; the sliding device is arranged on the mounting bottom plate; the outer top sleeve assembly and the inner top rod assembly are respectively connected with the mounting bottom plate through the sliding device; the outer jacking sleeve assembly and the inner jacking rod assembly can be respectively driven in a telescopic mode, the outer jacking sleeve assembly can jack a workpiece through telescopic driving, and the inner jacking rod assembly can jack the rod part of the rivet through telescopic driving; the detection device can measure the relative displacement between the outer top sleeve assembly and the inner top rod assembly, and the rivet inlet and the upsetting height are monitored through the relative displacement. The detection device has simple structure and convenient use; the rivet hole detection method is simple and direct, has high accuracy, has the function of detecting the rivet specification error, and is safer; the automatic online detection of the upsetting height is realized, the manual labor is reduced, and the riveting quality can be monitored more timely.
Description
Technical Field
The invention relates to the field of automatic hammer riveting, in particular to an on-line detection method and device for rivet access hole and upsetting height of automatic hammer riveting.
Background
The hammer riveting is a mode of repeatedly impacting the rivet by combining a piston of the riveter with the rivet hammer, and simultaneously, pushing the rivet by a top iron at the other end of the rivet to upsetting a nail rod and finally forming an upsetting head so as to connect workpieces. The rivet hole means that the rivet is inserted into the hole after the completion of the hole making of the connecting piece. Being able to detect whether the rivet has been correctly inserted into the rivet hole is an important guarantee of automatic riveting safety. Conventional rivet hole detection often adopts to detect whether a rivet pushing rod is flush with the surface of a workpiece at the rivet inserting side to determine whether a rivet is correctly inserted into the hole, but when the rivet falls off or the like, the conventional detection mode cannot determine whether the rivet is correctly inserted into the hole. The riveting upsetting height is an important index for reflecting the riveting quality, and the traditional riveting upsetting height detection mostly adopts a manual off-line detection mode with the assistance of vernier caliper equivalent, and has serious hysteresis for controlling the riveting quality.
Therefore, the current rivet hole detection adopts detection of whether a nail pushing rod/a rivet hammer is flush with the surface of a workpiece to determine whether a rivet is correctly inserted into the hole, and the detection is not direct enough; the upsetting height detection is manual off-line detection, and response is delayed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an on-line detection method and device for the rivet hole and the upsetting height of automatic hammer riveting.
The invention provides an automatic rivet hole and upsetting head height online detection device for rivet hammering and riveting, which comprises an installation bottom plate, an outer top sleeve assembly, an inner ejector rod assembly, a detection device and a sliding device, wherein the detection device is arranged on the installation bottom plate; the sliding device is arranged on the mounting bottom plate; the outer top sleeve assembly and the inner top rod assembly are respectively connected with the mounting bottom plate through the sliding device; the outer jacking sleeve assembly and the inner jacking rod assembly can be respectively driven in a telescopic mode, the outer jacking sleeve assembly can jack a workpiece through telescopic driving, and the inner jacking rod assembly can jack the rod part of the rivet through telescopic driving; the detection device can measure the relative displacement between the outer top sleeve component and the inner top rod component.
Preferably, the inner ejector rod assembly mainly comprises a first telescopic assembly, an elastic buffer assembly and a pressing assembly; the first telescopic component is arranged on the mounting bottom plate and can enable the inner ejector rod component to do telescopic movement; the elastic buffer component is connected with the sliding device, and can buffer the reverse riveting impact force applied to the tail end during riveting, preferably, the impact force caused by the telescopic movement to the rivet; the pressing top component is connected with the sliding device, and can tightly press the rivet.
Preferably, the first telescopic assembly mainly comprises an inner top cylinder and an inner top floating joint; the elastic buffer assembly mainly comprises an inner top buffer supporting seat, a linear bearing piece, a damping spring, an adjusting nut and a locking nut; the jacking component mainly comprises an inner jacking mandrel, an inner jacking iron and an inner jacking rod; the inner jacking cylinder is connected with the inner jacking buffer support seat through an inner jacking floating joint, one end of the linear bearing piece is connected with the inner jacking buffer support seat, the other end of the linear bearing piece is connected with the damping spring, the damping spring is connected with the inner jacking mandrel through an adjusting nut and a locking nut, and the inner jacking rod penetrates through the inner jacking iron and is connected with the inner jacking mandrel.
Preferably, the outer top cover assembly mainly comprises an outer top box assembly, a second telescopic assembly and a floating connecting piece; the second telescopic component is arranged on the mounting bottom plate, can enable the outer top box component to do telescopic motion, and is connected with the outer top box component through the floating connecting piece; the outer top box assembly is connected with the sliding device, and the outer top box assembly can tightly prop against the workpiece.
Preferably, the outer top box assembly mainly comprises an outer top box upper cover plate, an outer top box front cover plate, an outer top box rear support frame and an outer top cover; the second telescopic component mainly comprises an outer jacking cylinder and a base plate; the floating connecting piece mainly comprises an outer top floating joint and a connecting plate; the outer top cylinder is connected with the outer top floating joint through a base plate mounting base plate, one end of the connecting plate is connected with the outer top floating joint, the other end of the connecting plate is connected with the outer top box, an outer top box upper cover plate is arranged on the upper portion of the outer top box, an outer top box front cover plate is arranged on the front portion of the outer top box, an outer top box rear supporting frame is arranged on the rear portion of the outer top box, and the outer top box front cover plate is connected with the outer top cover.
Preferably, the detection device mainly comprises a sensor mounting bracket, a laser displacement sensor and a measuring plate; the sensor installing support is connected with the outer top box assembly, the laser displacement sensor is arranged on the sensor installing support, one end of the measuring plate is fixedly connected with the inner ejector rod assembly, the other end of the measuring plate extends out of the outer top box assembly, and the tail end of the portion extending out of the outer top box assembly is connected with the laser displacement sensor.
Preferably, the sliding device mainly comprises a guide rail, a first sliding block, a second sliding block, a third sliding block and a fourth sliding block; the guide rail is arranged on the mounting bottom plate; the second sliding block and the fourth sliding block are respectively connected with the outer top sleeve assembly, and the outer top sleeve assembly can slide through the second sliding block and the fourth sliding block; the first sliding block and the third sliding block are respectively connected with the inner top sleeve assembly, and the inner top sleeve assembly can slide through the first sliding block and the third sliding block.
The invention provides an automatic rivet hole and upsetting head height online detection method for hammering and riveting, which comprises the following steps: the device horizontal calibration step: when the end face of the outer top sleeve component and the end face of the inner top rod component are flush with the standard plane, the laser displacement sensor is cleared, and the current position of the measuring plate is used as a measuring origin; the device vertical calibration step: stacking the standard height measuring blocks on a standard plane, and recording the indication of the laser displacement sensor at the moment when the outer jacking sleeve jacks the standard plane and the inner jacking rod jacks the measuring blocks, so as to obtain a sensor sensitivity correction coefficient; the jacking operation steps are as follows: the outer jacking sleeve pushes the jacking workpiece through an outer jacking cylinder, and the inner ejector rod jacks the part to be tested through an inner jacking cylinder; the measuring step comprises the following steps: the relative displacement between the outer top sleeve and the inner top rod is measured by a laser displacement sensor and is recorded as the extension.
Preferably, the method for detecting the rivet hole and the heading height of the automatic hammer rivet on line is characterized by further comprising a measuring and correcting step; and a measurement correction step: and (3) carrying out condition judgment on the extension quantity, and carrying out measurement correction according to a judgment result obtained by the condition judgment.
Preferably, the condition is determined as: when the extension amount is smaller than or equal to the first set value, the judgment result is that the extension amount is zero, and the part to be tested is reinserted and tightly pressed; when the extension amount is larger than the second set value and smaller than or equal to the third set value, the judgment result is that the extension amount is effective; when the extension amount is larger than the first set value and smaller than the second set value or larger than the third set value, the judgment result is that the extension amount is invalid, and the part to be tested is replaced.
Compared with the prior art, the invention has the following beneficial effects:
1. the detection device has a simple structure and is convenient to use;
2. the rivet hole detection method is simple and direct, and has high accuracy;
3. The detection method has the function of detecting the error of the rivet specification, and is safer;
4. the invention can realize automatic on-line detection of the upsetting height, reduce the manual labor amount and monitor the riveting quality more timely.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the outer jacket assembly of the present invention;
FIG. 4 is a schematic view of the inner carrier rod assembly of the present invention;
FIG. 5 is a schematic illustration of the rivet hole detection of the present invention;
Fig. 6 is a schematic diagram of the upset head height sensing of the present invention.
The figure shows:
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
According to the invention, through the optimal design of the top riveting end effector and the combination of the laser displacement sensor, the detection of whether the rivet is correctly inserted into the rivet hole before riveting and the on-line detection of the upsetting height after the completion of riveting are realized.
The invention provides an automatic rivet hole and upsetting head height online detection device for rivet hammering and riveting, which comprises an installation bottom plate 1, an outer top sleeve assembly, an inner top rod assembly, a detection device and a sliding device, wherein the detection device is arranged on the installation bottom plate; the sliding device is arranged on the mounting bottom plate 1; the outer top sleeve component and the inner top rod component are respectively connected with the mounting bottom plate 1 through a sliding device; the outer jacking sleeve assembly and the inner jacking rod assembly can be respectively driven in a telescopic mode, the outer jacking sleeve assembly can jack the workpiece 30 through telescopic driving, and the inner jacking rod assembly can jack the rod part of the rivet 31 through telescopic driving; the detection device can measure the relative displacement between the outer top sleeve component and the inner top rod component.
Specifically, as shown in fig. 4, the inner ejector rod assembly mainly comprises a first telescopic assembly, an elastic buffer assembly and a capping assembly; the first telescopic component is arranged on the mounting bottom plate 1 and can enable the inner ejector rod component to do telescopic movement; the elastic buffer component is connected with the sliding device and can buffer the reverse riveting impact force applied to the tail end during riveting; the capping assembly is connected to the slide and is capable of tightening the rivet 31.
Specifically, the first telescopic assembly mainly comprises an inner jacking cylinder 2 and an inner jacking floating joint 3; the elastic buffer assembly mainly comprises an inner top buffer supporting seat 4, a linear bearing piece, a damping spring 7, an adjusting nut 8 and a locking nut 9; the linear bearing part mainly comprises a linear bearing 5 and a linear bearing cover plate 6; the jacking component mainly comprises an inner jacking mandrel 10, an inner jacking iron 11 and an inner jacking rod 29; the inner jacking cylinder 2 is connected with the inner jacking buffer support seat 4 through the inner jacking floating joint 3, one end of the linear bearing piece is connected with the inner jacking buffer support seat 4, the other end of the linear bearing piece is connected with the damping spring 7, the damping spring 7 is connected with the inner jacking mandrel 10 through the adjusting nut 8 and the locking nut 9, and the inner jacking rod 29 penetrates through the inner jacking iron 11 and is connected with the inner jacking mandrel 10.
Specifically, the outer top cover assembly mainly comprises an outer top box assembly, a second telescopic assembly and a floating connecting piece; the second telescopic component is arranged on the mounting bottom plate 1, can enable the outer top box component to do telescopic motion, and is connected with the outer top box component through a floating connecting piece; the outer top box assembly is connected with the sliding device, and the outer top box assembly can tightly prop against the workpiece 30.
Specifically, as shown in fig. 3, the outer top box assembly mainly includes an outer top box upper cover 12, an outer top box 14, an outer top box front cover 15, an outer top box rear bracket 26, and an outer top cover 16; the second telescopic assembly mainly comprises an outer jacking cylinder 17 and a base plate 18; the floating connector mainly comprises an outer top floating joint 19 and a connecting plate 20; the outer top cylinder 17 is connected with the mounting base plate 1 through a base plate 18, the outer top cylinder 17 is connected with an outer top floating joint 19, one end of a connecting plate 20 is connected with the outer top floating joint 19, the other end of the connecting plate 20 is connected with an outer top box 14, an outer top box upper cover plate 12 is arranged on the upper portion of the outer top box 14, an outer top box front cover plate 15 is arranged on the front portion of the outer top box 14, an outer top box rear supporting frame 26 is arranged on the rear portion of the outer top box 14, and the outer top box front cover plate 15 is connected with an outer top cover 16. Preferably, the connection plate 20 is an L-shaped connection plate.
Specifically, the detection device mainly comprises a sensor mounting bracket 13, a laser displacement sensor 21 and a measuring plate 22; the sensor mounting bracket 13 is connected with the outer top box assembly, the laser displacement sensor 21 is arranged on the sensor mounting bracket 13, one end of the measuring plate 22 is fixedly connected with the inner ejector rod assembly, the other end of the measuring plate 22 extends out of the outer top box assembly, and the tail end of the part extending out of the outer top box assembly is connected with the laser displacement sensor 21.
Specifically, the sliding device mainly comprises a guide rail 23, a first sliding block 24, a second sliding block 25, a third sliding block 27 and a fourth sliding block 28; the guide rail 23 is arranged on the mounting baseplate 1; the second slide block 25 and the fourth slide block 28 are respectively connected with an outer top sleeve assembly, and the outer top sleeve assembly can slide through the second slide block 25 and the fourth slide block 28; the first slider 24 and the third slider 27 are respectively connected with an inner top cover assembly, and the inner top cover assembly can slide through the first slider 24 and the third slider 27.
The invention provides an automatic rivet hole and upsetting head height online detection method for hammering and riveting, which comprises the following steps: the device horizontal calibration step: when the end face of the outer top sleeve component and the end face of the inner top rod component are flush with the standard plane by utilizing the standard plane, resetting the laser displacement sensor 21, and taking the current position of the measuring plate 22 as a measuring origin; the device vertical calibration step: stacking the standard height measurement blocks on a standard plane, and recording the indication number of the laser displacement sensor 21 at the moment when the outer jacking sleeve 16 jacks the standard plane and the inner jacking rod 29 jacks the measurement blocks, so as to obtain a sensor sensitivity correction coefficient; the jacking operation steps are as follows: the outer jacking sleeve 16 pushes the jacking workpiece 30 through the outer jacking cylinder 17, and the inner jacking rod 29 jacks the part to be tested through the inner jacking cylinder 2; the measuring step comprises the following steps: the relative displacement between the outer jacket 16 and the inner jack 29 is measured by the laser displacement sensor 21 and is referred to as the protrusion.
Specifically, the method for detecting the height of the rivet hole and the upsetting head of the automatic hammer rivet on line further comprises a measuring and correcting step; and a measurement correction step: and (3) carrying out condition judgment on the extension quantity, and carrying out measurement correction according to a judgment result obtained by the condition judgment.
Specifically, the condition is determined as: when the extension amount is smaller than or equal to the first set value, the judgment result is that the extension amount is zero, and the part to be tested is reinserted and tightly pressed; when the extension amount is larger than the second set value and smaller than or equal to the third set value, the judgment result is that the extension amount is effective; when the extension amount is larger than the first set value and smaller than the second set value or larger than the second set value, the judgment result is that the extension amount is invalid, and the part to be tested is replaced. The first set value is smaller than or equal to a second set value, and the second set value is smaller than or equal to a third set value.
As shown in fig. 1 and 2, the device of the present invention can be considered to be composed of an outer jacket portion and an inner carrier member portion. In the outer top sleeve part, an outer top sleeve, an outer top box, a laser displacement sensor and the like are fixedly connected into a whole through screw connection, and the whole is installed on the linear guide rail through two sliding blocks and is driven by an outer top cylinder to stretch and retract. In the inner ejector rod part, an inner ejector rod, a measuring plate, an inner ejector iron and an inner ejector mandrel are fixedly connected into a whole through screw threads/screws, the impact force of the ejector rivet is buffered by virtue of a buffering module formed by an inner ejector buffering supporting seat, a damping spring and the like, and the whole is installed on a linear guide rail through two sliding blocks and is driven by an inner ejector cylinder in a telescopic way.
The principle of the measurement method is explained as follows: before the device is used, a standard plane and a standard height gauge block are adopted to calibrate the measuring system. And when the end surfaces of the outer top sleeve and the inner top rod are flush with the standard plane by utilizing the standard plane, resetting the laser displacement sensor, namely taking the position as a measurement origin. And stacking the standard height measuring blocks on a standard plane, recording the indication number of the laser displacement sensor at the moment when the outer jacking sleeve jacks the standard plane and the inner jacking rod jacks the measuring block, obtaining the sensor sensitivity correction coefficient, and completing the calibration.
As shown in fig. 5, after the hole is formed in the workpiece 30, the rivet 31 is inserted into the hole by the rivet inserting device, the rivet is pushed by the rivet hammer 32 from the head side, the workpiece is pushed by the outer jacket 16 through the outer cylinder 17, and the rivet rod is pushed by the inner rod 29 through the inner cylinder 2. After the jacking operation is finished, the relative displacement of the outer jacking sleeve and the inner jacking rod is measured through the laser displacement sensor 21, and the extension of the rivet rod relative to the inner surface of the workpiece is obtained. When the protruding amount of the rivet rod is close to 0, the rivet is not inserted into the hole, and the system resets to insert the rivet again; when the protruding amount of the rivet rod is within a set threshold value interval (according to the riveting standard, the protruding amount of each diameter rivet needs to be within a certain range), the rivet is considered to be correctly inserted into the rivet hole, and riveting can be started; when the rivet stem protruding amount is not close to 0 and is not within the set threshold interval, the specification of the inserted rivet is considered to be wrong, the system performs the row nailing operation, and the rivet is reselected to perform the inserting nailing. Thus realizing rivet hole detection.
After the completion of the riveting, the rivet head height is detected using the above-described apparatus, as shown in fig. 6. The heading height detection is similar to the rivet hole detection principle. The outer jacking sleeve pushes the lower jacking workpiece by the outer jacking cylinder, and the inner jacking rod pushes the lower jacking upsetting head by the inner jacking cylinder. After the jacking is finished, the relative displacement of the outer jacking sleeve and the inner jacking rod is measured through a laser displacement sensor, and the extension quantity of the upsetting head relative to the surface of the workpiece, namely the upsetting head height, is obtained. Thus realizing the detection of the height of the upsetting head of the rivet.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present application. It is to be understood that the application is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the application. The embodiments of the application and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (4)
1. The automatic rivet hole and upsetting head height online detection device is characterized by comprising an installation bottom plate (1), an outer top sleeve assembly, an inner top rod assembly, a detection device and a sliding device;
The sliding device is arranged on the mounting bottom plate (1);
the outer top sleeve component and the inner top rod component are respectively connected with the mounting bottom plate (1) through a sliding device;
the outer jacking sleeve assembly and the inner jacking rod assembly can be respectively driven in a telescopic mode, the outer jacking sleeve assembly can jack the workpiece (30) through telescopic driving, and the inner jacking rod assembly can jack the rod part of the rivet (31) through telescopic driving;
The detection device can measure the relative displacement between the outer top sleeve component and the inner top rod component;
the inner ejector rod assembly mainly comprises a first telescopic assembly, an elastic buffer assembly and a pressing assembly;
the first telescopic component is arranged on the mounting bottom plate (1) and can enable the inner ejector rod component to do telescopic movement;
the elastic buffer component is connected with the sliding device and can buffer the reverse riveting impact force received by the tail end during riveting;
the jacking component is connected with the sliding device and can jack the rivet (31);
The outer top cover assembly mainly comprises an outer top box assembly, a second telescopic assembly and a floating connecting piece;
the second telescopic component is arranged on the mounting bottom plate (1), can enable the outer top box component to do telescopic motion, and is connected with the outer top box component through a floating connecting piece;
the outer top box assembly is connected with the sliding device, and can tightly prop against the workpiece (30);
The outer top box assembly mainly comprises an outer top box upper cover plate (12), an outer top box (14), an outer top box front cover plate (15), an outer top box rear support (26) and an outer top sleeve (16);
The second telescopic component mainly comprises an outer jacking cylinder (17) and a base plate (18);
the floating connecting piece mainly comprises an outer top floating joint (19) and a connecting plate (20);
The outer top cylinder (17) is connected with the outer top floating joint (19) through a base plate (18) mounting bottom plate (1), the outer top cylinder (17) is connected with the outer top floating joint (19), one end of the connecting plate (20) is connected with the outer top floating joint (19), the other end of the connecting plate (20) is connected with the outer top box (14), an outer top box upper cover plate (12) is arranged on the upper part of the outer top box (14), an outer top box front cover plate (15) is arranged on the front part of the outer top box (14), an outer top box rear supporting frame (26) is arranged on the rear part of the outer top box (14), and the outer top box front cover plate (15) is connected with the outer top sleeve (16);
The sliding device mainly comprises a guide rail (23), a first sliding block (24), a second sliding block (25), a third sliding block (27) and a fourth sliding block (28);
The guide rail (23) is arranged on the mounting bottom plate (1);
The second sliding block (25) and the fourth sliding block (28) are respectively connected with an outer top sleeve component, and the outer top sleeve component can slide through the second sliding block (25) and the fourth sliding block (28);
The first sliding block (24) and the third sliding block (27) are respectively connected with an inner ejector rod assembly, and the inner ejector rod assembly can slide through the first sliding block (24) and the third sliding block (27).
2. The automatic hammer rivet hole and upsetting head height online detection device according to claim 1, wherein the first telescopic component mainly comprises an inner top cylinder (2) and an inner top floating joint (3);
the elastic buffer assembly mainly comprises an inner top buffer supporting seat (4), a linear bearing piece, a damping spring (7), an adjusting nut (8) and a locking nut (9);
The jacking assembly mainly comprises an inner jacking mandrel (10), an inner jacking iron (11) and an inner jacking rod (29);
The inner jacking cylinder (2) is connected with the inner jacking buffer support seat (4) through the inner jacking floating joint (3), one end of the linear bearing piece is connected with the inner jacking buffer support seat (4), the other end of the linear bearing piece is connected with the damping spring (7), the damping spring (7) is connected with the inner jacking mandrel (10) through the adjusting nut (8) and the locking nut (9), and the inner jacking rod (29) penetrates through the inner jacking iron (11) and is connected with the inner jacking mandrel (10).
3. The automatic hammer-riveting rivet hole and heading height online detection device according to claim 1, wherein the detection device mainly comprises a sensor mounting bracket (13), a laser displacement sensor (21) and a measuring plate (22);
The sensor mounting bracket (13) is connected with the outer top box assembly, the laser displacement sensor (21) is arranged on the sensor mounting bracket (13), one end of the measuring plate (22) is fixedly connected with the inner ejector rod assembly, the other end of the measuring plate (22) extends out of the outer top box assembly, and the tail end of the part extending out of the outer top box assembly is connected with the laser displacement sensor (21).
4. An automatic hammer rivet hole and heading height online detection method, characterized in that the automatic hammer rivet hole and heading height online detection device according to any one of claims 1-3 is adopted, comprising the following steps:
The device horizontal calibration step: when the end face of the outer top sleeve component and the end face of the inner top rod component are flush with the standard plane, the laser displacement sensor (21) is cleared, and the current position of the measuring plate (22) is used as a measuring origin;
The device vertical calibration step: stacking the standard height measurement blocks on a standard plane, and recording the indication number of the laser displacement sensor (21) at the moment when the outer jacking sleeve (16) jacks the standard plane and the inner jacking rod (29) jacks the gauge block to obtain a sensor sensitivity correction coefficient;
The jacking operation steps are as follows: the outer jacking sleeve (16) pushes the jacking workpiece (30) through the outer jacking cylinder (17), and the inner ejector rod (29) jacks the part to be tested through the inner jacking cylinder (2);
The measuring step comprises the following steps: the relative displacement between the outer top sleeve (16) and the inner top rod (29) is measured by a laser displacement sensor (21) and is recorded as the extension;
The method also comprises a measurement correction step;
and a measurement correction step: performing condition judgment on the extension quantity, and performing measurement correction according to a judgment result obtained by the condition judgment;
The condition is determined as:
when the extension amount is smaller than or equal to the first set value, the judgment result is that the extension amount is zero, and the part to be tested is reinserted and tightly pressed;
when the extension amount is larger than the second set value and smaller than or equal to the third set value, the judgment result is that the extension amount is effective;
when the extension amount is larger than the first set value and smaller than the second set value or larger than the third set value, the judgment result is that the extension amount is invalid, and the part to be tested is replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126574.8A CN109226646B (en) | 2018-09-26 | 2018-09-26 | Automatic hammer riveting rivet inlet and upsetting head height online detection method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811126574.8A CN109226646B (en) | 2018-09-26 | 2018-09-26 | Automatic hammer riveting rivet inlet and upsetting head height online detection method and device |
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| Publication Number | Publication Date |
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| CN109226646A CN109226646A (en) | 2019-01-18 |
| CN109226646B true CN109226646B (en) | 2024-05-17 |
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| CN201811126574.8A Active CN109226646B (en) | 2018-09-26 | 2018-09-26 | Automatic hammer riveting rivet inlet and upsetting head height online detection method and device |
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| CN110006386A (en) * | 2019-04-09 | 2019-07-12 | 李岩东 | Rivet detection device |
| CN110293202B (en) * | 2019-05-24 | 2020-12-22 | 上海拓璞数控科技股份有限公司 | Automatic hammer riveting device and method |
| CN110549116B (en) * | 2019-08-26 | 2023-03-14 | 上海航天精密机械研究所 | Automatic drilling and riveting actuating mechanism and method suitable for riveting rocket cabin |
| CN111687367B (en) * | 2020-05-26 | 2024-08-09 | 西安理工大学 | Single-sided rivet drawing assembly device and assembly method thereof |
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