CN215415387U - A clamping device for rotating flaw detector detects rod - Google Patents
A clamping device for rotating flaw detector detects rod Download PDFInfo
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- CN215415387U CN215415387U CN202120111727.2U CN202120111727U CN215415387U CN 215415387 U CN215415387 U CN 215415387U CN 202120111727 U CN202120111727 U CN 202120111727U CN 215415387 U CN215415387 U CN 215415387U
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Abstract
The utility model relates to a clamping device for a rotary flaw detector to detect a bar, which comprises a disc, a clamping strip, an output gear and a movable gear ring, wherein the disc is provided with a clamping groove; the output gear and the movable gear ring are rotationally connected to the disc, racks are arranged on the same side of the clamping strips, the clamping strips with the racks are uniformly distributed along the circumferential direction of the disc, the cores of the racks of each clamping strip are provided with the output gear, the output gears are respectively meshed with the inner ring of the movable gear ring, and the clamping strips can reciprocate along the radial direction of the disc by rotating the movable gear ring, so that the clamping and the loosening of the rod materials are realized; the utility model can keep the coaxiality of the bar and the rotating center of the rotary flaw detector and simultaneously has the function of synchronously adapting to the dynamic change of the outer diameter of the bar.
Description
Technical Field
The utility model relates to a clamping device, in particular to a clamping device for a bar detected by a rotary flaw detector.
Background
In order to ensure the quality of bar products and eliminate potential safety hazards in the use process, the production process of domestic and foreign special steel bars adopts a rotary flaw detector to detect flaws of the bars, most of the existing rotary flaw detectors adopt a through detection coil to detect flaws on the surface or near surface of the bars, and in order to ensure the accuracy of flaw detection, a three-jaw mechanism is arranged before the bars enter the rotary flaw detector to synchronously clamp the bars, and the three-jaw mechanism adopts a connecting rod hinge mode to manufacture clamping.
The above scheme has the defects that: the existing three-jaw mechanism is used for manufacturing clamping in a connecting rod hinge mode, the control quantity and the control accuracy of the stroke are poor, the centering and clamping accuracy are poor, the mechanism structure is complex, self-locking cannot be realized under the condition of large stroke of the bar, and the three riding wheels on the three-jaw mechanism are slightly worn when the bar with the same specification is operated for a long time, the position of the centre of clamping of the bar with the next different diameter can be influenced, the riding wheels are required to be readjusted every time, the labor intensity of workers is increased, and the working efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a clamping device for detecting bars by a rotary flaw detector.
The technical purpose of the utility model is realized by the following technical scheme: a clamping device for a rotary flaw detector to detect bars comprises a disc, a clamping strip, an output gear and a movable gear ring; the center of the disc is provided with a round hole for a workpiece to pass through, the disc is connected with at least three clamping strips in a sliding manner along the radial direction of the disc, and the clamping strips are uniformly arranged along the circumferential direction and are used for clamping the workpiece passing through the round hole; the clamping device comprises a plurality of clamping strips, a disc and a driving gear, wherein the clamping strips are arranged on the disc, the same side of each clamping strip is provided with a rack, the driving gear capable of rotating around the circle center of the disc is also arranged on the disc, one side of each clamping strip provided with the rack is linked with the driving gear through an output gear, and the output gear is rotationally connected to the disc and correspondingly meshed with an inner ring of the driving gear; the movable gear ring rotates around the circle center of the disc in a forward or reverse direction to drive the output gear to rotate, so that the clamping strip reciprocates along the radial direction of the disc.
In one embodiment, the movable gear ring is mounted on the disc through an external pressure baffle ring, an external pressure ring bearing support is arranged at the bottom of the external pressure baffle ring, a circular ring bearing support is arranged on the disc, and the movable gear ring is mounted between the circular ring bearing support and the external pressure ring bearing support through a bearing; move the ring gear and install between ring bearing and outer ring bearing through the bearing, outer pressure fender ring and disc can provide a relatively inclosed space for moving the ring gear, and this space is first can prevent the dust, and the second can prevent that external object from to the rotation formation of moving the ring gear from disturbing, moves the ring gear in addition and makes the installation of moving the ring gear more convenient and fast through the bearing installation, moves the ring gear simultaneously and realizes rotating through the bearing and make the rotation of moving the ring gear more reliable and more stable.
In one embodiment, one end of each clamping strip, which is close to the center of the circular disc, is rotatably connected with a riding wheel, and the riding wheel can rotate along the axial direction of the circular disc; one end of the clamping strip, which is close to the circle center of the disc, is rotatably connected with a supporting wheel, and the supporting wheel can enable the bar to be detected to be pushed in along the circular axis without the need of the clamping strip to perform multiple opening and closing clamping.
In one embodiment, an input gear is meshed on the movable gear ring, and a power device is connected to the input gear; move the ring gear and go up the meshing and have input gear, input gear is connected with power device moreover, power device can drive input gear, input gear drives the ring gear again, moves the ring gear and makes the radial direction reciprocating motion of centre gripping strip along the disc through output gear, and then can realize the centre gripping of centre gripping strip to the rod, the realization of above clamping function need not the artifical direct power supply that provides the centre gripping action for easy operation is swift, and is safe effective, labour saving and time saving.
In one embodiment, an inner circular ring is arranged on the edge of the circular hole, and an outer circular ring is arranged on the outer edge of the disc; a groove is formed between the inner circular ring and the outer circular ring, the output gear and the movable gear ring can be arranged in the groove, and the groove provides a relatively closed space for parts arranged in the groove and plays a good role in protecting the parts in the groove.
In one embodiment, the top surfaces of the inner circular ring and the outer circular ring are provided with sliding grooves, and the clamping strips are connected in the sliding grooves in a sliding manner; the clamping strip is arranged in the specific sliding groove, so that the movement of the clamping strip is more reliable.
In one embodiment, the sliding groove is a dovetail groove; the dovetail groove has the characteristics of stable connection, high and stable motion precision and the like.
In one embodiment, the length of the clamping strip is greater than or equal to the difference between the inner diameter of the inner circular ring and the outer diameter of the outer circular ring; the length of the clamping strip is larger than or equal to the difference value between the inner diameter of the inner circular ring and the outer diameter of the outer circular ring, so that the clamping strip can have enough stroke, and the clamping strip can clamp more bars with different diameters only by having enough stroke.
In one embodiment, the input gear is engaged on the outer ring of the moving gear ring; more space is arranged on the peripheral side of the outer ring of the movable gear ring, so that the input gear is more convenient to mount, replace and the like.
In one embodiment, the ratio of the number of teeth of the output gear to the number of teeth of the inner ring of the moving ring is 1: 10-1: 8, or more; the ratio of the number of teeth of the output gear to the number of teeth of the inner ring of the movable gear ring is 1: 10-1: the range of 8 can ensure that the clamping device has a proper speed when running, so that the clamping process is more stable and safer.
In conclusion, the utility model has the following beneficial effects: the device can keep the coaxiality of the bar and the rotation center of the rotary flaw detector, and establish the relation between the linear conveying of the axis of the bar and the coaxiality of the rotation center of the rotary flaw detector; the clamping bars are in a floating jaw type, have the function of synchronously adapting to dynamic changes of the outer diameters of the bars, still keep the center of the bars stable under the condition of changing the outer diameters, realize the adjustment of the bars with different diameters and have the function of adjusting the clamping force.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a cross-sectional view A-A' of FIG. 1;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view of a disk of the present invention;
fig. 5 is a schematic structural view of the outer snap ring of the present invention.
In the figure: 1-a disc; 2-a rack; 3-an output gear; 4-inner circular ring; 5-an outer circular ring; 6-groove; 7-riding wheels; 8-external pressure stop ring; 9-moving gear ring; 10-a power plant; 11-input gear; 12-a first bearing; 13-a second bearing; 14-a first screw hole; 15-a second screw hole; 16-a dovetail groove; 17-a ring bearing support; and 18-outer pressure ring bearing support.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
Referring to fig. 1 to 5, a clamping device for a rotary flaw detector for detecting a bar, includes: the device comprises a disc 1, a clamping strip 2, an output gear 3 and a movable gear ring 9; the center of the disc 1 is provided with a round hole for a workpiece to pass through, the disc 1 is connected with at least three clamping strips 2 in a sliding manner along the radial direction, and the clamping strips 2 are uniformly arranged along the circumferential direction and are used for clamping the workpiece passing through the round hole; the same side of each clamping strip 2 is provided with a rack, the disc 1 is also provided with a movable gear ring 9 which can rotate around the center of the disc 1, one side of each clamping strip 2, which is provided with the rack, is linked with the movable gear ring 9 through an output gear 3, and the output gear 3 is rotatably connected to the disc 1 and correspondingly meshed with an inner ring of the movable gear ring 9; the movable gear ring 9 rotates forwards or reversely around the circle center of the disc 1 to drive the output gear 3 to rotate, so that the clamping strips 2 reciprocate along the radial direction of the disc 1;
specifically, a second screw hole 15 is formed in the disc 1, clamping steps are arranged at the upper end and the lower end of a through hole in the middle of the output gear 3, a second bearing 13 is arranged in each clamping step, a bolt thread penetrates through the through hole of the gear 3 and the second bearings 13 at the two ends of the through hole and is connected in the second screw hole 15 in a threaded manner, and the output gear 3 is rotatably connected with a bolt connected with the second screw hole 15 through the second bearing 13;
in the above embodiment, one end of the clamping bar 2 close to the central circular hole of the disc 1 is located at the edge of the central circular hole of the disc 1 in the initial state, preferably, three clamping bars 2 are provided, after the bar passes through the central circular hole of the disc 1 and enters the rotary flaw detector, the clamping device can clamp the bar, at this time, the movable gear ring 9 can be rotated in one reverse direction, the movable gear ring 9 can drive the output gear 3 to rotate, the output gear 3 can drive the clamping bar 2 to move towards the center of the disc 1 along the radial direction of the disc 1, after the clamping bar 2 contacts and clamps the bar, the movable gear ring 9 is stopped to rotate and the movable gear ring 9 is fixed, then the rotary flaw detector can be started to detect the bar, when the bar needs to be continuously pushed to detect other positions of the bar, at this time, the fixation of the movable gear ring 9 is firstly released, and then the gear ring 9 is rotated in the other direction, the clamping bar 2 moves away from the circle center of the disc 1 along the radial direction of the disc 1, then the bar is separated from the clamping of the clamping device, the bar is continuously pushed to the rotary flaw detector or the position of the bar is adjusted, then the movable gear ring 9 is rotated along the direction of rotating the movable gear ring 9 for the first time, the clamping bar 2 clamps the bar, the movable gear ring 9 is fixed after the bar is clamped, and the rotary flaw detector is started again to detect the bar; the method is operated circularly until the detection is finished, after the detection is finished, the movable gear ring 9 is firstly released from being fixed, then the gear ring 9 is rotated along the direction of rotating the movable gear ring 9 for the second time to release the clamping of the clamping strips 2 on the bar, and then the bar is taken down from the clamping device and the rotary flaw detector.
Further, the movable gear ring 9 is installed on the disc 1 through an external pressure baffle ring 8, an external pressure ring bearing support 18 is arranged at the bottom of the external pressure baffle ring 8, a circular ring bearing support 17 is arranged on the disc 1, and the movable gear ring 9 is installed between the circular ring bearing support 17 and the external pressure ring bearing support 18 through a bearing;
specifically, the ring bearing support 17 and the outer pressure ring bearing support 18 are both sleeved with first bearings 12, the upper end and the lower end of an inner ring of the movable gear ring 9 are both provided with clamping steps, the two clamping steps of the movable gear ring 9 are respectively sleeved on the two first bearings 12, the outer pressure baffle ring 8 is provided with a through hole, one end, away from the movable gear ring 9, of the through hole of the outer pressure baffle ring 8 is provided with a counter bore, the disc 1 is provided with a first screw hole 14, a bolt is in threaded connection with the first screw hole 14 through the through hole of the outer pressure baffle ring 8, and therefore the outer pressure baffle ring 8 is connected to the top of the movable gear ring 9;
the movable gear ring 9 can realize more stable rotation and more convenient installation through bearing installation, and meanwhile, the outer pressure baffle ring 8 can play a role in sealing and protecting the movable gear ring 9.
Furthermore, one end of each of the plurality of clamping strips 2, which is close to the circle center of the disc 1, is rotatably connected with a riding wheel 7, and the riding wheel 7 can rotate along the axial direction of the disc 1; the centre gripping strip 2 is carrying out the centre gripping back to the rod, and the rotary flaw detection chance detects the rod, and the rod detection of current position is accomplished the back, because the one end of 2 centre gripping rods of centre gripping strip is equipped with rotatable riding wheel 7, so can directly advance the rod and carry out the detection of other positions along the axis direction of disc 1, needn't carry out the unclamping and pressing from both sides tightly of centre gripping strip 2 again to operation has been simplified, time saving.
Further, an input gear 11 is meshed on the movable gear ring 9, and the input gear 11 is connected with a power device 10; specifically, a power device 10 is used for driving an input gear 11, and then a movable gear ring 9 is driven by the input gear 11, the movable gear ring 9 drives the holding strip 2 to move by the output gear 3, and preferably, the power device 10 is a motor;
the power device drives the clamping device to operate, so that labor can be saved, and the working efficiency is improved.
Furthermore, an inner circular ring 4 is arranged on the edge of the circular hole, and an outer circular ring 5 is arranged on the outer edge of the disc 1; specifically, a groove 6 is formed between the inner ring 4 and the outer ring 5, the output gear 3 and the movable gear ring 9 can be installed in the groove 6, and the groove 6 plays a good role in hiding and protecting the output gear 3 and the movable gear ring 9.
Furthermore, the top surfaces of the inner ring 4 and the outer ring 5 are provided with sliding grooves 16, and the clamping strips 2 are connected in the sliding grooves 16 in a sliding manner; the design of the sliding groove 16 can provide a special moving track for the clamping strip 2, so that the movement of the clamping strip 2 is more stable and reliable.
Further, the sliding groove 16 is a dovetail groove; the dovetail groove is simple in structure and stable, and meanwhile, the dovetail groove is high in movement precision and good in stability.
Further, the length of the clamping strip 2 is greater than or equal to the difference between the inner diameter of the inner circular ring 4 and the outer diameter of the outer circular ring 5; the holding strip 2 with the length can ensure enough stroke so as to realize the holding of the holding strip 2 on the bars with different diameters.
Further, the input gear 11 is engaged on the outer ring of the moving ring gear 9; the outer ring of the movable gear ring 9 has more installation space, and the installation and the replacement of the input gear 11 and the power device 10 are convenient.
Further, the ratio of the number of teeth of the output gear 3 to the number of teeth of the inner ring of the moving ring 9 is 1: 10-1: 8, or more; the ratio range of the number of teeth of the output gear 3 and the number of teeth of the inner ring of the movable gear ring 9 is set, so that the clamping device has a proper speed when in operation, the clamping process is more stable, the safety of the device is improved, and preferably, the ratio is 1: 9.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (10)
1. A clamping device for a rotary flaw detector to detect bars is characterized by comprising a disc (1), a clamping strip (2), an output gear (3) and a movable gear ring (9); the center of the disc (1) is provided with a round hole for a workpiece to pass through, at least three clamping strips (2) are connected to the disc (1) in a sliding manner along the radial direction of the disc, and the clamping strips (2) are uniformly arranged along the circumferential direction and are used for clamping the workpiece passing through the round hole; racks are arranged on the same sides of the plurality of clamping strips (2), a movable gear ring (9) capable of rotating around the circle center of the disc (1) is further arranged on the disc (1), one side, provided with the racks, of each clamping strip (2) is linked with the movable gear ring (9) through an output gear (3), and the output gear (3) is rotatably connected to the disc (1) and correspondingly meshed with an inner ring of the movable gear ring (9); the movable gear ring (9) rotates around the circle center of the disc (1) in a positive rotation or a negative rotation mode to drive the output gear (3) to rotate, and therefore the clamping strips (2) can reciprocate along the radial direction of the disc (1).
2. The clamping device for the rotary flaw detector to detect the bar material according to claim 1, wherein the movable gear ring (9) is installed on the disc (1) through an external pressure baffle ring (8), an external pressure ring bearing support (18) is arranged at the bottom of the external pressure baffle ring (8), a circular ring bearing support (17) is arranged on the disc (1), and the movable gear ring (9) is installed between the circular ring bearing support (17) and the external pressure ring bearing support (18) through a bearing.
3. The holding device for the rotary flaw detector to detect the bar material according to claim 1, wherein a supporting wheel (7) is rotatably connected to one end of the plurality of holding strips (2) close to the center of the disc (1), and the supporting wheel (7) can rotate along the axial direction of the disc (1).
4. The holding device for the inspection bar of the rotary flaw detector according to claim 1, wherein the input gear (11) is engaged with the movable gear ring (9), and the power device (10) is connected to the input gear (11).
5. The holding device for the rotary flaw detector to detect the bar material according to claim 1, wherein the circular hole is provided with an inner circular ring (4) on the edge, and the disc (1) is provided with an outer circular ring (5) on the outer edge.
6. The holding device for the inspection bar of the rotary flaw detector according to claim 5, wherein the top surfaces of the inner ring (4) and the outer ring (5) are provided with sliding grooves (16), and the holding bars (2) are slidably connected in the sliding grooves (16).
7. The holding device for the inspection bar of the rotary flaw detector according to claim 6, wherein the sliding groove (16) is a dovetail groove.
8. The holding device for the inspection bar of the rotary testing machine according to any of the claims 1 to 7, wherein the length of the holding bar (2) is greater than or equal to the difference between the inner diameter of the inner ring (4) and the outer diameter of the outer ring (5).
9. The gripping device for the inspection bars of rotary inspection machines according to claim 4, characterized in that the input gear (11) is engaged on the outer ring of the moving ring gear (9).
10. The clamping device for the rotary flaw detector to detect the bar according to claim 8, wherein the ratio of the number of teeth of the output gear (3) to the number of teeth of the inner ring of the movable ring gear (9) is 1: 10-1: and 8, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120111727.2U CN215415387U (en) | 2021-01-15 | 2021-01-15 | A clamping device for rotating flaw detector detects rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120111727.2U CN215415387U (en) | 2021-01-15 | 2021-01-15 | A clamping device for rotating flaw detector detects rod |
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| Publication Number | Publication Date |
|---|---|
| CN215415387U true CN215415387U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120111727.2U Active CN215415387U (en) | 2021-01-15 | 2021-01-15 | A clamping device for rotating flaw detector detects rod |
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| CN (1) | CN215415387U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114651615A (en) * | 2022-04-29 | 2022-06-24 | 中国林业科学研究院林业研究所 | Grafting device for Chinese fir |
| CN116609503A (en) * | 2023-05-10 | 2023-08-18 | 沂源县华阳能源设备有限公司 | Surface quality testing equipment for turbine blade set |
| CN117259844A (en) * | 2023-11-02 | 2023-12-22 | 东莞市迈可荣精密机械有限公司 | High-precision machining equipment for metal bar |
-
2021
- 2021-01-15 CN CN202120111727.2U patent/CN215415387U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114651615A (en) * | 2022-04-29 | 2022-06-24 | 中国林业科学研究院林业研究所 | Grafting device for Chinese fir |
| CN114651615B (en) * | 2022-04-29 | 2023-09-08 | 中国林业科学研究院林业研究所 | Grafting device for fir |
| CN116609503A (en) * | 2023-05-10 | 2023-08-18 | 沂源县华阳能源设备有限公司 | Surface quality testing equipment for turbine blade set |
| CN117259844A (en) * | 2023-11-02 | 2023-12-22 | 东莞市迈可荣精密机械有限公司 | High-precision machining equipment for metal bar |
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