CN210570606U - Welded nut roughness detection device - Google Patents
Welded nut roughness detection device Download PDFInfo
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- CN210570606U CN210570606U CN201921371836.7U CN201921371836U CN210570606U CN 210570606 U CN210570606 U CN 210570606U CN 201921371836 U CN201921371836 U CN 201921371836U CN 210570606 U CN210570606 U CN 210570606U
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Abstract
The utility model belongs to the technical field of the nut welding precision detects, specifically provide a welded nut roughness detection device, including base, detection mechanism and be used for the anchor clamps that the centre gripping welded the weld plate of nut, anchor clamps can be dismantled with the base and be connected, and detection mechanism is including detecting round pin and pushing mechanism, and pushing mechanism includes push rod and connecting block, connecting block and pedestal connection, push rod and connecting block sliding connection, and the one end of push rod is connected with the one end that detects the round pin, and the other end that detects the round pin can insert in the welded nut. The device is used for detecting the roughness of the good nut of welding, simple structure, and small in size, the precision is high, and it is all very convenient to carry and operate, can be at the stable precision of detecting the nut under the adverse circumstances in welding shop, and the commonality is high and detect fastly, greatly improves production efficiency.
Description
Technical Field
The utility model belongs to the technical field of the nut welding precision detects, concretely relates to welded nut roughness detection device.
Background
At present, in the automobile industry, nuts on stamping parts are generally automatically welded through a special projection welding machine. Specifically, a nut is welded to one of the two parts to be assembled, and a bolt is passed through a through hole in the part and screwed into the nut to effect assembly. Therefore, the whole precision after the nut is assembled to whether qualified direct influence of the welding roughness of nut on the part, if the welding unevenness can lead to the nut slope, there is the contained angle in the track of screw hole and the precession direction of bolt, can lead to the bolt to twist completely like this for the assembly is not compact, can lead to seriously assembling whole emergence to drop. Taking an automobile door as an example, the precision of the welding position of a nut on an automobile door assembly directly influences the assembly quality of the automobile door. The high-precision automobile body can not only ensure the assembly precision of the total assembly parts, but also be an important influence factor of the appearance clearance of the automobile body and the quality of the whole automobile. Therefore, how to detect the flatness of the welded nut and further correct the welding flatness of the nut according to the detection data becomes an urgent technical problem to be solved.
Disclosure of Invention
The utility model aims at overcoming the difficult problem of welded nut roughness detection among the prior art.
For this, the utility model provides a welded nut roughness detection device, have the anchor clamps of the weld plate of nut including base, detection mechanism and be used for the centre gripping welding, anchor clamps with the connection can be dismantled to the base, detection mechanism is including detecting round pin and pushing mechanism, pushing mechanism includes push rod and connecting block, the connecting block with pedestal connection, the push rod with connecting block sliding connection, the one end of push rod with the one end of detecting the round pin is connected, the other end of detecting the round pin can insert in the welded nut.
Preferably, the outer diameter of the sensing pin is tolerance fit to the inner diameter of the weld nut.
Preferably, the tolerance fit is a clearance fit or a transition fit.
Preferably, the device comprises a plurality of detection mechanisms, and the detection pins of the detection mechanisms respectively correspond to the welding nuts on the welding plates.
Preferably, the pushing mechanism comprises a cylinder assembly, the cylinder assembly comprises a cylinder body and a piston slidably mounted in the cylinder body, the push rod is detachably connected with the piston, and the cylinder body is fixedly connected with the base.
Preferably, the surface of the push rod is provided with a pressure sensor, and the pressure sensor is electrically connected with a controller of the air cylinder assembly.
Preferably, the device further comprises an alarm, and the pressure sensor is electrically connected with the alarm.
Preferably, the maximum stroke of the piston is the same as the depth of the weld nut.
Preferably, a guide hole is formed in the connecting block, and the push rod is slidably inserted into the guide hole.
Preferably, the clamp comprises a hydraulic cylinder, a connecting rod and a pressing rod, the hydraulic cylinder is fixedly connected with the base, the connecting rod is connected with an output shaft of the hydraulic cylinder, one end of the pressing rod is hinged to the connecting rod, the other end of the pressing rod can be pressed against the welding plate, and the part between the two ends of the pressing rod is hinged to the base.
The utility model has the advantages that: the utility model provides a welded nut roughness detection device, including base, detection mechanism and be used for the anchor clamps that the centre gripping welded the weld plate of nut, anchor clamps can dismantle with the base and be connected, and detection mechanism is including detecting round pin and pushing mechanism, and pushing mechanism includes push rod and connecting block, connecting block and pedestal connection, push rod and connecting block sliding connection, and the one end of push rod is connected with the one end that detects the round pin, and the other end that detects the round pin can insert in the welded nut. The device is used for detecting the roughness of the good nut of welding, simple structure, and small in size, the precision is high, and it is all very convenient to carry and operate, can be at the stable precision of detecting the nut under the adverse circumstances in welding shop, and the commonality is high and detect fastly, greatly improves production efficiency.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the device for detecting the flatness of the welded nut of the present invention;
fig. 2 is a schematic view of the welded nut flatness detecting device according to the present invention.
Description of reference numerals: the detection device comprises a base 100, a detection mechanism 200, a welding plate 300, a pressure rod 400, a hydraulic cylinder 500, a connecting rod 600, a cylinder assembly 201 and a detection pin 202.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 and 2, the utility model provides a welded nut roughness detection device, have the anchor clamps of the board 300 that welds of nut including base 100, detection mechanism 200 and being used for the centre gripping welding, anchor clamps with the connection can be dismantled to base 100, detection mechanism 200 is including detecting round pin 202 and pushing mechanism, pushing mechanism includes push rod and connecting block, the connecting block with base 100 connects, the push rod with connecting block sliding connection, the one end of push rod with the one end that detects round pin 202 is connected, the other end that detects round pin 202 can insert in the welded nut. Therefore, the welding nut is welded on the welding plate 300, the welding plate 300 is placed on the predetermined position of the base 100, specifically, the base 100 is provided with a plurality of protrusions, and the protrusions are matched with the corresponding positions of the appearance of the welding plate 300, so as to position the welding plate 300. And then clamped by a clamp. After the welding plate 300 is installed and clamped, the pushing mechanism is opened, and the push rod drives the detection pin 202 to be slowly inserted into the welding nut. If the welding nut is welded smoothly, namely the threaded hole of the welding nut is not inclined, the detection pin 202 can be inserted into the threaded hole smoothly, which indicates that the flatness of the welding nut meets the requirement; if the weld nut is welded with an inclination, the detection pin 202 encounters resistance when inserted, and the resistance increases the deeper the insertion. Therefore, the welding flatness of the welding nut is judged.
Preferably, the outer diameter of the sensing pin 202 is tolerance matched to the inner diameter of the weld nut. Therefore, the outer diameter of the detection pin 202 is matched with the inner diameter of the welding nut in tolerance, so that the detection pin 202 can be just inserted, and the insertion is blocked when the detection pin has an inclined angle. By controlling the fit size of the detection pin 202 and the weld nut, the detection accuracy can be changed. For example, when the detection pin 202 is much smaller than the inner diameter of the threaded hole of the weld nut, the detection accuracy is lowered.
Preferably, the tolerance fit is a clearance fit or a transition fit. The detection precision is improved to the maximum extent when the detection pin 202 can be inserted into the threaded hole.
Preferably, the apparatus includes a plurality of detecting mechanisms 200, and the detecting pins 202 of each detecting mechanism 200 correspond to the weld nuts on the weld plate 300. The welding plates 300 can be detected by one-time clamping, and a plurality of welding nuts on the welding plates can be detected at one time.
Preferably, the pushing mechanism includes a cylinder assembly 201, the cylinder assembly 201 includes a cylinder body and a piston slidably mounted in the cylinder body, the push rod is detachably connected to the piston, and the cylinder body is fixedly connected to the base 100. Therefore, the push rod is driven by the air cylinder, and the push rod drives the detection pin 202 to move back and forth to realize the detection function. The limit pressure of the air cylinder is preset, so that damage to a device caused by overlarge resistance when the detection pin 202 is inserted into the welding nut is prevented, and when the resistance reaches the limit pressure, the air cylinder automatically retracts. Therefore, the flatness of the welding nut can not meet the requirement.
In a preferable scheme, a pressure sensor is arranged on the surface of the push rod, and the pressure sensor is electrically connected with a controller of the air cylinder assembly 201. Therefore, when the insertion of the detection pin 202 is blocked, the push rod is pressed, the pressure sensor on the surface of the push rod can sense the pressure, and the pressure is inversely proportional to the flatness of the welded nut.
Preferably, the device further comprises an alarm, and the pressure sensor is electrically connected with the alarm. And when the pressure reaches a preset value, an alarm is given out. The alarm can be a flash lamp or a buzzer.
Preferably, the maximum stroke of the piston is the same as the depth of the weld nut. Therefore, when the piston does not encounter resistance after the stroke, the flatness of the welding nut meets the requirement.
In a preferable scheme, a guide hole is formed in the connecting block, and the push rod can be slidably inserted into the guide hole. When the screw hole depth of weld nut is darker, the stroke of push rod also must be big, can receive great bending force in the motion process, and can shake, and the guiding hole plays stable effect.
Preferably, the clamp includes a hydraulic cylinder 500, a connecting rod 600 and a pressing rod 400, the hydraulic cylinder 500 is fixedly connected with the base 100, the connecting rod 600 is connected with an output shaft of the hydraulic cylinder 500, one end of the pressing rod 400 is hinged to the connecting rod 600, the other end of the pressing rod 400 can be pressed against the welding plate 300, and the pressing rod 400 is positioned between the two ends of the pressing rod 400 and hinged to the base 100. The pressing rod 400 is hinged with the base 100 to form a fulcrum, thereby realizing the lever principle. When the hydraulic cylinder 500 drives the link lever 600 to move upward, the pressing lever 400 presses the welding plate 300 downward about the fulcrum. Otherwise, the weld plate 300 may be released.
The utility model has the advantages that: the utility model provides a welded nut roughness detection device, including base, detection mechanism and be used for the anchor clamps that the centre gripping welded the weld plate of nut, anchor clamps can dismantle with the base and be connected, and detection mechanism is including detecting round pin and pushing mechanism, and pushing mechanism includes push rod and connecting block, connecting block and pedestal connection, push rod and connecting block sliding connection, and the one end of push rod is connected with the one end that detects the round pin, and the other end that detects the round pin can insert in the welded nut. The device is used for detecting the roughness of the good nut of welding, simple structure, and small in size, the precision is high, and it is all very convenient to carry and operate, can be at the stable precision of detecting the nut under the adverse circumstances in welding shop, and the commonality is high and detect fastly, greatly improves production efficiency.
The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a welded nut roughness detection device which characterized in that: including base, detection mechanism and be used for the centre gripping welding to have the anchor clamps of the weld plate of nut, anchor clamps with the connection can be dismantled to the base, detection mechanism is including detecting round pin and pushing mechanism, pushing mechanism includes push rod and connecting block, the connecting block with pedestal connection, the push rod with connecting block sliding connection, the one end of push rod with the one end of detecting the round pin is connected, the other end of detecting the round pin can insert in the welding nut.
2. The weld nut flatness detection apparatus according to claim 1, wherein: the outer diameter of the detection pin is in tolerance fit with the inner diameter of the welding nut.
3. The weld nut flatness detection apparatus according to claim 2, wherein: the tolerance fit is a clearance fit or a transition fit.
4. The weld nut flatness detection apparatus according to claim 1, wherein: the device comprises a plurality of detection mechanisms, and detection pins of the detection mechanisms respectively correspond to the welding nuts on the welding plate.
5. The weld nut flatness detection apparatus according to claim 1, wherein: the pushing mechanism comprises an air cylinder assembly, the air cylinder assembly comprises a cylinder body and a piston which is slidably installed in the cylinder body, the push rod is detachably connected with the piston, and the cylinder body is fixedly connected with the base.
6. The weld nut flatness detection apparatus according to claim 5, wherein: and a pressure sensor is arranged on the surface of the push rod and is electrically connected with a controller of the air cylinder assembly.
7. The weld nut flatness detection apparatus according to claim 5, wherein: the device further comprises an alarm, and the pressure sensor is electrically connected with the alarm.
8. The weld nut flatness detection apparatus according to claim 5, wherein: the maximum travel of the piston is the same as the depth of the weld nut.
9. The weld nut flatness detection apparatus according to claim 1, wherein: the connecting block is internally provided with a guide hole, and the push rod can be slidably inserted into the guide hole.
10. The weld nut flatness detection apparatus according to claim 1, wherein: the clamp comprises a hydraulic cylinder, a connecting rod and a pressing rod, the hydraulic cylinder is fixedly connected with the base, the connecting rod is connected with an output shaft of the hydraulic cylinder, one end of the pressing rod is hinged to the connecting rod, the other end of the pressing rod can be pressed against the welding plate, and the part between the two ends of the pressing rod is hinged to the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921371836.7U CN210570606U (en) | 2019-08-22 | 2019-08-22 | Welded nut roughness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921371836.7U CN210570606U (en) | 2019-08-22 | 2019-08-22 | Welded nut roughness detection device |
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| CN210570606U true CN210570606U (en) | 2020-05-19 |
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| CN201921371836.7U Active CN210570606U (en) | 2019-08-22 | 2019-08-22 | Welded nut roughness detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798616A (en) * | 2020-12-29 | 2021-05-14 | 贵州博泰自动化科技有限公司 | Nut distinguishing method and system for necking machine |
-
2019
- 2019-08-22 CN CN201921371836.7U patent/CN210570606U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798616A (en) * | 2020-12-29 | 2021-05-14 | 贵州博泰自动化科技有限公司 | Nut distinguishing method and system for necking machine |
| CN112798616B (en) * | 2020-12-29 | 2024-05-03 | 贵州博泰自动化科技有限公司 | Judging method and judging system for nut for necking machine |
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