CN209850749U - Novel clamping device for clamping test piece - Google Patents
Novel clamping device for clamping test piece Download PDFInfo
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- CN209850749U CN209850749U CN201920615878.4U CN201920615878U CN209850749U CN 209850749 U CN209850749 U CN 209850749U CN 201920615878 U CN201920615878 U CN 201920615878U CN 209850749 U CN209850749 U CN 209850749U
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000003466 welding Methods 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000007246 mechanism Effects 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection 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
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model relates to a novel clamping device for centre gripping test piece, include: the device comprises a shell, a bevel gear disc support body, a bevel gear disc bearing, a small bevel gear I shaft, a small bevel gear I bearing, a baffle cover, a flange disc type connector, a double bevel gear disc bearing, a base mounting body, a cylindrical ring type connector, a small bevel gear II shaft, a small bevel gear II bearing, a base I, a special clamping jaw I, a circumferential fixing frame I, a small bevel gear III shaft, a small bevel gear III bearing, a base II, a special clamping jaw II, a circumferential fixing frame II and a self-locking device; the self-locking of the clamping device is completed by the mutual matching of the turning pawl and the ratchet wheel of the self-locking device, the special clamping jaw I completes the clamping work of the inner wall of the test piece and the special clamping jaw II completes the clamping work of the outer wall of the test piece through a series of transmission mechanisms, and the self-locking device has the advantages of simple and compact structure, good manufacturability, convenience in operation and the like.
Description
Technical Field
The utility model relates to a clamping device, specific saying so relates to a novel clamping device for centre gripping test piece.
Background
Various clamping devices are used in human life and work, and the application range of the clamping devices is wider and wider. The clamping device is a device for fixing a processing object to occupy a correct position for receiving construction or detection in a mechanical manufacturing process, and is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a clamping device. The clamping device is an indispensable technological device in machining, and can play the following roles: the requirements of various processing precision can be stably and reliably met; the processing working hours are shortened, and the labor productivity is improved; the production cost is reduced; the labor intensity of an operator is reduced; can be processed by operators with lower technical grades; the technological range of the machine tool can be enlarged. Various clamping devices exist on the market, for example: welding jigs, inspection jigs, assembly jigs, machine tool jigs, and the like, but most clamping devices have various problems, such as: for a cylindrical ring type test piece, only the outer wall of the test piece can be clamped, but the inner wall of the test piece cannot be clamped; the clamping device has the advantages of complex structure, poor reliability, low precision, poor adaptability and the like. For solving a great deal of drawback of clamping device on the market, the utility model designs a novel clamping device for centre gripping test piece that this money is easy and simple to handle, elegant appearance, the precision is high.
Disclosure of Invention
The utility model discloses a purpose seeks manufacturing and designing a simple structure, compactness, and the manufacturability is good, convenient operation, and the precision is high, safe practical a novel clamping device for centre gripping test piece.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel clamping device for clamping a test piece, comprising: the device comprises a shell, a bevel gear disc support body, a bevel gear disc bearing, a small bevel gear I shaft, a small bevel gear I bearing, a baffle cover, a flange disc type connector, a double bevel gear disc bearing, a base mounting body, a cylindrical ring type connector, a small bevel gear II shaft, a small bevel gear II bearing, a base I, a special clamping jaw I, a circumferential fixing frame I, a small bevel gear III shaft, a small bevel gear III bearing, a base II, a special clamping jaw II, a circumferential fixing frame II and a self-locking device; the bevel gear support is connected with the bevel gear through the bevel gear bearing, the bevel gear is meshed with the small bevel gear I, the small bevel gear I is fixedly connected with the small bevel gear I shaft through a spline, and the small bevel gear I shaft is connected with the shell through the small bevel gear I bearing; the conical fluted disc support body is fixedly connected with the blocking cover through a screw, the blocking cover is fixedly connected with the base installation body through a screw, the base installation body is fixedly connected with the cylindrical ring type connecting body through a screw, and the cylindrical ring type connecting body is fixedly connected with the shell through a screw; the conical fluted disc and the flange disc type connecting body are fixedly connected with each other through screws, the flange disc type connecting body and the double-conical fluted disc are fixedly connected with each other through screws, and the double-conical fluted disc and the base mounting body are connected with each other through a double-conical fluted disc bearing; the double-bevel fluted disc is meshed with the small bevel gear II, the small bevel gear II is fixedly connected with the small bevel gear II through a spline, the small bevel gear II is connected with the base I through the small bevel gear II bearing, the base I is fixedly connected with the base installation body through a welding mode, the small bevel gear II is connected with the specially-made clamping jaw I through a thread, the specially-made clamping jaw I is in clearance fit sliding connection with the circumferential fixing frame I, and the circumferential fixing frame I is fixedly connected with the base installation body through a welding mode; the double bevel gear disc is meshed with the small bevel gear III, the small bevel gear III is fixedly connected with the small bevel gear III through a spline, the small bevel gear III is connected with the base II through the small bevel gear III bearing, the base II is fixedly connected with the base installation body through a welding mode, the small bevel gear III is connected with the specially-made clamping jaw II through a thread, the specially-made clamping jaw II is in clearance fit sliding connection with the circumferential fixing frame II, and the circumferential fixing frame II is fixedly connected with the base installation body through a welding mode; the self-locking device is positioned between the shell and the small bevel gear I, a ratchet wheel of the self-locking device is arranged on a shaft of the small bevel gear I through a spline, a base of the self-locking device is fixedly connected with the shell and the bevel gear disc supporting body through screws respectively, and a turning pawl of the self-locking device is in clearance fit sliding connection with the bevel gear disc supporting body; the axes of the shell, the conical fluted disc support body, the conical fluted disc bearing, the baffle cover, the flange disc type connecting body, the double conical fluted disc bearing, the base mounting body and the cylindrical ring type connecting body are on the same straight line; the bevel pinion I, the bevel pinion I shaft, the bevel pinion I bearing, the bevel pinion II shaft, the bevel pinion II bearing, the base I, the specially-made claw I, the circumferential fixing frame I, the bevel pinion III shaft, the bevel pinion III bearing, the base II, the specially-made claw II, the circumferential fixing frame II and the self-locking device are respectively provided with three sets, and the three sets are distributed around the same straight line in an equal distribution mode.
Further, the shell is of a hollow cylindrical structure, one end face of the cylinder is removed, the other end face of the cylinder is provided with a circular through hole I, three threaded holes equally divided around the axis are formed in the periphery of the circular through hole I, and one end of the shell, provided with the threaded holes, is connected with one end of the cylindrical ring type connecting body through a screw; the side surface of the cylinder is provided with three circular through holes II, the axes of the three circular through holes II are on the same plane I, the plane I is parallel to the two end surfaces, and the plane I is positioned on one side of the central symmetry plane of the two end surfaces and is close to the removed end surface; the side surface of the cylinder is provided with three circular through holes III, the axes of the three circular through holes III are on the same plane II, and the plane II and the plane I are symmetrical about the central symmetry plane of the two end surfaces.
Further, the conical fluted disc support body is positioned inside one end of the shell, and one end of the shell is the end with the end face removed; the bevel gear disc support body is of a flange disc type structure, an annular disc I and a hollow cylinder I with two removed end faces are connected with each other through welding, three circular through holes IV are formed in the edge of the annular disc I in a split mode, a direction-changing pawl of the self-locking device is connected with the circular through holes IV in a sliding mode through clearance fit, a stepped circular groove is formed in one end of the hollow cylinder I in the inner portion, and one end, provided with the stepped circular groove, of the cylindrical disc I is far away from one end of the annular disc I.
Further, the self-locking device includes: the device comprises a base, a turning pawl, a spring and a ratchet wheel; the base is of a hollow cuboid structure, one end face of the base is removed, the other end face of the base is provided with a circular through hole V, one side face of the base is fixedly installed on the inner side face of the shell through screws, and the end face of the base is fixedly installed on the outer edge of the circular ring plate I of the conical fluted disc support body through screws; the direction-changing pawl is positioned in the base and fixedly installed together through an adjusting knob, a long and thin cylinder, a disc and wedge-shaped blocks of ratchet teeth sequentially through threads, the long and thin cylinder of the direction-changing pawl is sequentially and respectively in clearance fit sliding connection with the circular through hole IV of the bevel gear disc supporting body and the circular through hole V of the base of the self-locking device, the spring is sleeved outside the long and thin cylinder of the direction-changing pawl, and the wedge-shaped blocks of the direction-changing pawl and the ratchet wheel are installed in a matched mode; one end of the spring is fixedly connected with one end of the base, provided with the circular through hole V, and the other end of the spring is fixedly connected with one end of the disc of the direction-changing pawl; the ratchet wheel is arranged at one end of the shaft of the small bevel gear I through a spline and is close to one end of the small bevel gear I.
Furthermore, the flange-disk type connecting body is of a flange-disk type structure, the annular disk II and the cylinder II which is hollow inside are connected with each other through welding, one end face of the cylinder II is removed, the other end face of the cylinder II is provided with a round hole, and the end face provided with the round hole is an end face far away from the annular disk II.
Furthermore, the double-cone fluted disc is a fluted disc with both internal and external inverted cones, namely a fluted disc with a high middle part and low two sides, the external inverted cone teeth of the double-cone fluted disc are meshed with the cone teeth of the small bevel gear II, and the internal inverted cone teeth of the double-cone fluted disc are meshed with the cone teeth of the small bevel gear III.
Further, the base mounting body is of a flange-like disc structure and is formed by sequentially connecting a circular disc III, an internal hollow cylinder III with two removed end faces and an internal hollow cylinder IV with two removed end faces through welding.
Furthermore, threaded holes are respectively formed in one end of the small bevel gear II shaft and one end of the small bevel gear III shaft, threads are respectively formed in one end of the specially-made clamping jaw I and one end of the specially-made clamping jaw II, the other end of the specially-made clamping jaw I and one end of the specially-made clamping jaw II are respectively of a cone structure, and the middle of the specially-made clamping jaw I and the middle of the specially-made clamping jaw II are respectively; the thread of the specially-made clamping jaw I is connected with the threaded hole of the shaft of the bevel pinion II in a threaded fit manner, the middle cuboid part of the specially-made clamping jaw I is connected with the cuboid hole of the circumferential fixing frame I in a clearance fit manner, the end face of the circular truncated cone body end of the specially-made clamping jaw I is of an arc-shaped structure, and the circular truncated cone body end of the specially-made clamping jaw I is one end of a clamping test piece; the special clamping jaw II is characterized in that threads of the special clamping jaw II are connected with threaded holes of a small bevel gear III shaft in a threaded fit mode, a middle cuboid part of the special clamping jaw II is connected with a cuboid hole of the circumferential fixing frame II in a clearance fit mode, the end face of the circular table body end of the special clamping jaw II is of an arc-shaped structure, and the circular table body end of the special clamping jaw II is one end of a clamping test piece.
Furthermore, one end of the shaft I of the small bevel gear is provided with a hexagon socket, and one end of the shaft I of the small bevel gear is used for installing the bearing I of the small bevel gear.
Implement the utility model relates to a novel clamping device for centre gripping test piece, its beneficial effect lies in:
(1) the utility model relates to a novel clamping device for clamping test piece, when clamping the inner wall of the test piece, the bevel pinion I shaft is rotated anticlockwise by a hexagonal wrench, the bevel pinion I shaft rotates, and then the bevel pinion I is driven to rotate; the rotation of the small bevel gear I drives the bevel gear disc to rotate, and further drives the flange disc type connecting body to rotate; the rotation of the flange disc type connecting body drives the double-cone fluted disc to rotate, so that the small bevel gear II is driven to rotate; the rotation of the small bevel gear II drives the small bevel gear II to rotate, the spiral rotation is converted into linear motion, and the special clamping jaw I is further driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw I is far away from the central axis and moves towards the inner wall of the test piece, and the clamping work of the test piece is completed along with the increase of the distance of the arc-shaped tail end of the special clamping jaw I; when the outer wall of a test piece is clamped, the small bevel gear I shaft is clockwise rotated by a hexagonal wrench, after the transmission of the transmission mechanism, the rotation of the double-bevel fluted disc drives the small bevel gear III to rotate so as to drive the small bevel gear III shaft to rotate, the spiral rotation is converted into linear motion, and the special clamping jaw II is further driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw II is close to the central axis and moves towards the outer wall of the test piece, and the clamping work of the test piece is completed along with the increase of the approach of the arc-shaped tail end of the special clamping jaw II; the device has the advantages of simple and compact structure, good manufacturability, convenient operation and the like.
(2) When the inner wall of a test piece is clamped, the adjusting knob of the turning pawl is lifted by a hand along the axis direction of the long and thin cylinder of the turning pawl and is rotated, so that wedge type ratchet teeth are matched with the ratchet wheel, a shaft I of the bevel pinion can only rotate anticlockwise, namely the special clamping jaw I can only move towards the direction far away from the central axis, and the self-locking of the clamping device is finished; when the outer wall of a test piece is clamped, after the self-locking device is operated, the wedge block type ratchet teeth are matched with the ratchet wheel, so that the shaft I of the bevel pinion can only rotate clockwise, namely the special clamping jaw II can only move towards the direction close to the central axis, the self-locking of the clamping device is completed, and the clamping device has the self-locking function.
Drawings
Fig. 1 is an external view of a novel clamping device for clamping a test piece according to the present invention;
FIG. 2 is a structural diagram of a shelling of a novel clamping device for clamping a test piece according to the present invention;
FIG. 3 is an exploded view of a shelling structure of a novel clamping device for clamping a test piece according to the present invention;
FIG. 4 is a schematic diagram of the clamping operation of the novel clamping device for clamping a test piece according to the present invention;
FIG. 5 is a structural diagram of a self-locking device of the novel clamping device for clamping a test piece according to the present invention;
FIG. 6 is a two-dimensional view of a double conical fluted disc of the novel clamping device for clamping a test piece according to the present invention;
in the figure: the device comprises a shell-1, a bevel gear disc support body-2, a bevel gear disc-3, a bevel gear disc bearing-4, a small bevel gear I-5, a small bevel gear I shaft-6, a small bevel gear I bearing-7, a baffle cover-8, a flange disc type connector-9, a double bevel gear disc-10, a double bevel gear disc bearing-11, a base installation body-12, a cylindrical ring type connector-13, a small bevel gear II-14, a small bevel gear II shaft-15, a small bevel gear II bearing-16, a base I-17, a specially-made clamping jaw I-18, a circumferential fixing frame I-19, a small bevel gear III-20, a small bevel gear III shaft-21, a small bevel gear III bearing-22, a base II-23, a specially-made clamping jaw II-24, a circumferential fixing frame II-25, a self-locking device-26, a special-shaped clamping jaw II-, A base-261, a direction-changing pawl-262, a spring-263 and a ratchet-264.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, 4, 5, and 6, a novel clamping device for clamping a test piece includes: the device comprises a shell 1, a bevel gear disc support body 2, a bevel gear disc 3, a bevel gear disc bearing 4, a small bevel gear I5, a small bevel gear I shaft 6, a small bevel gear I bearing 7, a baffle cover 8, a flange disc type connector 9, a double bevel gear disc 10, a double bevel gear disc bearing 11, a base installation body 12, a cylindrical ring type connector 13, a small bevel gear II14, a small bevel gear II shaft 15, a small bevel gear II bearing 16, a base I17, a special clamping jaw I18, a circumferential fixing frame I19, a small bevel gear III20, a small bevel gear III shaft 21, a small bevel gear III bearing 22, a base II23, a special clamping jaw II24, a circumferential fixing frame II25 and a self-locking device 26; the bevel-toothed disc support body 2 is connected with the bevel-toothed disc 3 through the bevel-toothed disc bearing 4, the bevel-toothed disc 3 is meshed with the small bevel gear I5, the small bevel gear I5 is fixedly connected with the small bevel gear I shaft 6 through a spline, and the small bevel gear I shaft 6 is connected with the shell 1 through the small bevel gear I bearing 7; the bevel gear disc support body 2 is fixedly connected with the blocking cover 8 through screws, the blocking cover 8 is fixedly connected with the base installation body 12 through screws, the base installation body 12 is fixedly connected with the cylindrical ring type connecting body 13 through screws, and the cylindrical ring type connecting body 13 is fixedly connected with the shell 1 through screws; the conical fluted disc 3 and the flange disc type connecting body 9 are fixedly connected with each other through screws, the flange disc type connecting body 9 and the double conical fluted disc 10 are fixedly connected with each other through screws, and the double conical fluted disc 10 and the base mounting body 12 are connected with each other through a double conical fluted disc bearing 11; the double bevel gear disc 10 is meshed with the bevel pinion II14, the bevel pinion II14 is fixedly connected with the bevel pinion II shaft 15 through a spline, the bevel pinion II shaft 15 is connected with the base I17 through the bevel pinion II bearing 16, the base I17 is fixedly connected with the base mounting body 12 through a welding mode, the bevel pinion II shaft 15 is connected with the special jaw I18 through a thread, the special jaw I18 is in clearance fit sliding connection with the circumferential fixing frame I19, and the circumferential fixing frame I19 is fixedly connected with the base mounting body 12 through a welding mode; the double bevel gear disc 10 is meshed with the bevel pinion III20, the bevel pinion III20 is fixedly connected with the bevel pinion III shaft 21 through a spline, the bevel pinion III shaft 21 is connected with the base II23 through the bevel pinion III bearing 22, the base II23 is fixedly connected with the base mounting body 12 through a welding manner, the bevel pinion III shaft 21 is connected with the special jaw II24 through a thread, the special jaw II24 is connected with the circumferential fixing frame II25 through a clearance fit sliding manner, and the circumferential fixing frame II25 is fixedly connected with the base mounting body 12 through a welding manner; the self-locking device 26 is positioned between the shell 1 and the bevel pinion I5, a ratchet wheel 264 of the self-locking device 26 is mounted on the bevel pinion I shaft 6 through a spline, a base 261 of the self-locking device 26 is fixedly connected with the shell 1 and the bevel gear disc support body 2 through screws, respectively, and a direction-changing pawl 262 of the self-locking device 26 is in clearance fit sliding connection with the bevel gear disc support body 2; the axes of the shell 1, the conical fluted disc support body 2, the conical fluted disc 3, the conical fluted disc bearing 4, the baffle cover 8, the flange disc type connecting body 9, the double conical fluted disc 10, the double conical fluted disc bearing 11, the base mounting body 12 and the cylindrical ring type connecting body 13 are on the same straight line; the bevel pinion I5, the bevel pinion I shaft 6, the bevel pinion I bearing 7, the bevel pinion II14, the bevel pinion II shaft 15, the bevel pinion II bearing 16, the base I17, the special claw I18, the circumferential fixing frame I19, the bevel pinion III20, the bevel pinion III shaft 21, the bevel pinion III bearing 22, the base II23, the special claw II24, the circumferential fixing frame II25 and the self-locking device 26 are respectively provided with three sets, and the three sets are distributed around the same straight line in an equal distribution mode.
Further, the housing 1 is a cylindrical structure with a hollow interior, one end face of the cylinder is removed, the other end face is provided with a circular through hole I, three threaded holes equally divided around the axis are formed around the circular through hole I, and one end of the housing 1 provided with the threaded holes is connected with one end of the cylindrical ring type connecting body 13 through screws; the side surface of the cylinder is provided with three circular through holes II, the axes of the three circular through holes II are on the same plane I, the plane I is parallel to the two end surfaces, and the plane I is positioned on one side of the central symmetry plane of the two end surfaces and is close to the removed end surface; three circular through holes III are respectively formed in the side face of the cylinder, the axes of the three circular through holes III are on the same plane II, and the plane II and the plane I are symmetrical about the central symmetry plane of the two end faces; the bevel gear disc support body 2 is positioned inside one end of the shell 1, and one end of the shell 1 is the end with the end face removed; the bevel gear disc support body 2 is of a flange disc type structure, an annular disc I and an inner hollow cylinder I with two removed end faces are connected with each other through welding, three circular through holes IV are formed in the edge of the annular disc I, a direction-changing pawl 262 of the self-locking device 26 is in clearance fit sliding connection with the circular through holes IV, a stepped circular groove is formed in one end of the inner hollow cylinder I, and one end with the stepped circular groove is far away from the end of the annular disc I.
Further, the self-locking device 26 includes: a base 261, a direction-changing pawl 262, a spring 263 and a ratchet 264; the base 261 is a cuboid structure with a hollow interior, one end face of the base is removed, the other end face of the base is provided with a circular through hole V, one side face of the base is fixedly installed on the inner side face of the shell 1 through screws, and the end face of the base 261 is fixedly installed on the outer edge of the circular ring plate I of the bevel gear plate support body 2 through screws; the direction-changing pawl 262 is positioned in the base 261 and fixedly installed together through an adjusting knob, a long and thin cylinder, a disc and wedge-shaped ratchet teeth sequentially through threads, the long and thin cylinder of the direction-changing pawl 262 is in clearance fit sliding connection with the circular through hole IV of the bevel disk support body 2 and the circular through hole V of the base 261 of the self-locking device 26 sequentially and respectively, the spring 263 is sleeved outside the long and thin cylinder of the direction-changing pawl 262, and the wedge-shaped ratchet teeth of the direction-changing pawl 262 and the ratchet wheel 264 are installed in a matched mode; one end of the spring 263 is fixedly connected with one end of the base 261, at which the circular through hole v is formed, and the other end of the spring 263 is fixedly connected with one end of the disc of the direction-changing pawl 262; the ratchet gear 264 is splined to one end of the bevel pinion I-shaft 6, which is adjacent to one end of the bevel pinion I5.
Further, the flange-disk type connector 9 is a flange-disk type structure, and is formed by connecting a circular disk II and a hollow cylinder II by welding, wherein one end face of the cylinder II is removed, and the other end face is provided with a circular hole, and the end face provided with the circular hole is an end face far away from the circular disk II; the double-cone fluted disc 10 is a conical fluted disc with both internal and external inverted cones, namely a conical fluted disc with a high middle part and two low sides, the external inverted cone teeth of the double-cone fluted disc 10 are meshed with the cone teeth of the small bevel gear II14, and the internal inverted cone teeth of the double-cone fluted disc 10 are meshed with the cone teeth of the small bevel gear III 20; the base mounting body 12 is of a flange-like disc structure and is formed by sequentially connecting a circular disc III, an internal hollow cylinder III with two removed end faces and an internal hollow cylinder IV with two removed end faces through welding; one end of the small bevel gear II shaft 15 and one end of the small bevel gear III shaft 21 are respectively provided with a threaded hole, one end of the specially-made claw I18 and one end of the specially-made claw II24 are respectively provided with threads, the other ends of the specially-made claw I18 and the specially-made claw II24 are respectively of a cone structure, and the middle of the specially-made claw I18 and the middle of the specially-made claw II 24; the thread of the special clamping jaw I18 is connected with the threaded hole of the small bevel gear II shaft 15 in a threaded fit manner, the middle cuboid part of the special clamping jaw I18 is connected with the cuboid hole of the circumferential fixing frame I19 in a clearance fit manner, the end face of the circular truncated cone body end of the special clamping jaw I18 is of an arc-shaped structure, and the circular truncated cone body end of the special clamping jaw I18 is one end for clamping a test piece; the threads of the specially-made clamping jaw II24 are connected with the threaded hole of the small bevel gear III shaft 21 in a threaded fit manner, the middle cuboid part of the specially-made clamping jaw II24 is connected with the cuboid hole of the circumferential fixing frame II25 in a clearance fit manner, the end face of the circular truncated cone body end of the specially-made clamping jaw II24 is of an arc-shaped structure, and the circular truncated cone body end of the specially-made clamping jaw II24 is one end for clamping a test piece; an inner hexagonal hole is formed in one end of the small bevel gear I shaft 6, and one end of the small bevel gear I shaft 6 is used for installing one end of the small bevel gear I bearing 7.
As shown in fig. 1, 2, 3, 4, 5, and 6, the working method of the novel clamping device for clamping a test piece of the present invention comprises the following steps:
according to installation requirements, the bevel gear support body 2 is connected with the bevel gear plate 3 through the bevel gear plate bearing 4, the bevel gear plate 3 is meshed with the small bevel gear I5, the small bevel gear I5 is fixedly connected with the small bevel gear I shaft 6 through splines, and the small bevel gear I shaft 6 is connected with the shell 1 through the small bevel gear I bearing 7; fixedly connecting the bevel gear disc support body 2 with the blocking cover 8 through screws, fixedly connecting the blocking cover 8 with the base installation body 12 through screws, fixedly connecting the base installation body 12 with the cylindrical ring type connecting body 13 through screws, and fixedly connecting the cylindrical ring type connecting body 13 with the shell 1 through screws; fixedly connecting the conical fluted disc 3 and the flange disc type connecting body 9 with each other through screws, fixedly connecting the flange disc type connecting body 9 and the double conical fluted disc 10 with each other through screws, and connecting the double conical fluted disc 10 and the base mounting body 12 with each other through a double conical fluted disc bearing 11; the double-bevel gear disc 10 is meshed with the small bevel gear II14, the small bevel gear II14 is fixedly connected with the small bevel gear II shaft 15 through a spline, the small bevel gear II shaft 15 is connected with the base I17 through the small bevel gear II bearing 16, the base I17 is fixedly connected with the base installation body 12 through a welding mode, the small bevel gear II shaft 15 is connected with the special clamping jaw I18 through a thread, the special clamping jaw I18 is in clearance fit sliding connection with the circumferential fixing frame I19, and the circumferential fixing frame I19 is fixedly connected with the base installation body 12 through a welding mode; the double bevel gear disc 10 is meshed with the bevel pinion III20, the bevel pinion III20 is fixedly connected with the bevel pinion III shaft 21 through a spline, the bevel pinion III shaft 21 is connected with the base II23 through the bevel pinion III bearing 22, the base II23 is fixedly connected with the base installation body 12 through a welding mode, the bevel pinion III shaft 21 is connected with the special clamping jaw II24 through a thread, the special clamping jaw II24 is in clearance fit sliding connection with the circumferential fixing frame II25, and the circumferential fixing frame II25 is fixedly connected with the base installation body 12 through a welding mode; placing the self-locking device 26 between the shell 1 and the bevel pinion I5, wherein a ratchet wheel 264 of the self-locking device 26 is mounted on the bevel pinion I shaft 6 through a spline, a base 261 of the self-locking device 26 is fixedly connected with the shell 1 and the bevel gear disc support body 2 through screws, and a direction-changing pawl 262 of the self-locking device 26 is in clearance fit sliding connection with the bevel gear disc support body 2; the axes of the outer shell 1, the conical fluted disc support body 2, the conical fluted disc 3, the conical fluted disc bearing 4, the baffle cover 8, the flange disc type connecting body 9, the double conical fluted disc 10, the double conical fluted disc bearing 11, the base mounting body 12 and the cylindrical ring type connecting body 13 are on the same straight line; three sets of the bevel pinion I5, the bevel pinion I shaft 6, the bevel pinion I bearing 7, the bevel pinion II14, the bevel pinion II shaft 15, the bevel pinion II bearing 16, the base I17, the specially-made dog I18, the circumferential fixing frame I19, the bevel pinion III20, the bevel pinion III shaft 21, the bevel pinion III bearing 22, the base II23, the specially-made dog II24, the circumferential fixing frame II25 and the self-locking device 26 are distributed equally around the same straight line; the shell 1, the bevel gear disc support body 2, the baffle cover 8, the base mounting body 12 and the cylindrical ring type connecting body 13 form a stator system, and the stator system does not rotate around a central axis in the process of clamping a test piece; and enabling the conical fluted disc 3, the flange disc type connecting body 9 and the double conical fluted disc 10 to form a rotor system, and enabling the rotor system to rotate around the central axis in the process of clamping the test piece.
When the inner wall of a test piece is clamped, the adjusting knob of the direction-changing pawl 262 is lifted by a hand along the axial direction of the elongated cylinder of the direction-changing pawl 262 and is rotated, so that the wedge-shaped ratchet teeth are matched with the ratchet wheel 264, the bevel pinion I shaft 6 can only rotate anticlockwise, namely the special jaw I18 can only move towards the direction far away from the central axis, and the self-locking of the clamping device is completed.
The small bevel gear I shaft 6 is rotated anticlockwise by a hexagonal wrench, and the small bevel gear I shaft 6 rotates to drive the small bevel gear I5 to rotate; the rotation of the small bevel gear I5 drives the bevel gear disc 3 to rotate, and further drives the flange disc type connecting body 9 to rotate; the rotation of the flange disc type connecting body 9 drives the double-bevel fluted disc 10 to rotate, and further drives the small bevel gear II14 to rotate; the rotation of the small bevel gear II14 drives the small bevel gear II shaft 15 to rotate, the spiral rotation is converted into linear motion, and then the special clamping jaw I18 is driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw I18 is far away from the central axis and moves towards the inner wall of a test piece, and along with the increase of the distance of the arc-shaped tail end of the special clamping jaw I18, the clamping work of the test piece is completed.
When the outer wall of the test piece is clamped, the adjusting knob of the direction-changing pawl 262 is lifted by a hand along the axial direction of the elongated cylinder of the direction-changing pawl 262 and is rotated, so that the wedge-shaped ratchet teeth are matched with the ratchet wheel 264, the bevel pinion I shaft 6 can only rotate clockwise, namely the special jaw II24 can only move towards the direction close to the central axis, and the self-locking of the clamping device is completed.
The small bevel gear I shaft 6 is rotated clockwise by a hexagonal wrench, after transmission of the transmission mechanism, the rotation of the double bevel gear disc 10 drives the small bevel gear III20 to rotate, so as to drive the small bevel gear III shaft 21 to rotate, the spiral rotation is converted into linear motion, and further the special clamping jaw II24 is driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw II24 is close to the central axis and moves towards the outer wall of a test piece, and along with the increase of the arc-shaped tail end of the special clamping jaw II24, the clamping work of the test piece is completed.
When the inner wall of the test piece is loosened, the adjusting knob of the direction-changing pawl 262 is lifted by hand along the axial direction of the elongated cylinder of the direction-changing pawl 262 and rotated, so that the wedge-shaped ratchet teeth are matched with the ratchet wheel 264, the bevel pinion I shaft 6 can rotate clockwise, namely the special jaw I18 can move towards the direction close to the central axis, and the unlocking setting of the clamping device is completed.
Clockwise rotating the small bevel gear I shaft 6 by using a hexagonal wrench, and rotating the small bevel gear I shaft 6 so as to drive the small bevel gear I5 to rotate; the rotation of the small bevel gear I5 drives the bevel gear disc 3 to rotate, and further drives the flange disc type connecting body 9 to rotate; the rotation of the flange disc type connecting body 9 drives the double-bevel fluted disc 10 to rotate, and further drives the small bevel gear II14 to rotate; the rotation of the small bevel gear II14 drives the small bevel gear II shaft 15 to rotate, the spiral rotation is converted into linear motion, and further the special clamping jaw I18 is driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw I18 is close to the central axis and moves back to the inner wall of the test piece, and the loosening work of the test piece is completed along with the increase of the approach of the arc-shaped tail end of the special clamping jaw I18.
When the outer wall of the test piece is loosened, the adjusting knob of the direction-changing pawl 262 is lifted by hand along the axial direction of the elongated cylinder of the direction-changing pawl 262 and rotated, so that the wedge-shaped ratchet teeth are matched with the ratchet wheel 264, the bevel pinion I shaft 6 can rotate anticlockwise, namely the special jaw II24 can move in the direction away from the central axis, and the unlocking setting of the clamping device is completed.
The small bevel gear I shaft 6 is rotated anticlockwise by a hexagonal wrench, after transmission of the transmission mechanism, rotation of the double bevel gear disc 10 drives the small bevel gear III20 to rotate, the small bevel gear III shaft 21 is further driven to rotate, spiral rotation is converted into linear motion, and the special clamping jaw II24 is further driven to do linear motion, so that the arc-shaped tail end of the special clamping jaw II24 is far away from the central axis and moves back to the outer wall of a test piece, and loosening work of the test piece is completed along with increase of the distance of the arc-shaped tail end of the special clamping jaw II 24.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A novel clamping device for clamping a test piece, comprising: the device comprises a shell (1), a bevel gear disc support body (2), a bevel gear disc (3), a bevel gear disc bearing (4), a small bevel gear I (5), a small bevel gear I shaft (6), a small bevel gear I bearing (7), a baffle cover (8), a flange disc type connector (9), a double bevel gear disc (10), a double bevel gear disc bearing (11), a base mounting body (12), a cylindrical ring type connector (13), a small bevel gear II (14), a small bevel gear II shaft (15), a small bevel gear II bearing (16), a base I (17), a special clamping jaw I (18), a circumferential fixing frame I (19), a small bevel gear III (20), a small bevel gear III shaft (21), a small bevel gear III bearing (22), a base II (23), a special clamping jaw II (24), a circumferential fixing frame II (25) and a self-locking device (26); the bevel gear support body (2) is connected with the bevel gear disc (3) through the bevel gear disc bearing (4), the bevel gear disc (3) is meshed with the small bevel gear I (5), the small bevel gear I (5) is fixedly connected with the small bevel gear I shaft (6) through a spline, and the small bevel gear I shaft (6) is connected with the shell (1) through the small bevel gear I bearing (7); the bevel gear disc support body (2) is fixedly connected with the blocking cover (8) through a screw, the blocking cover (8) is fixedly connected with the base installation body (12) through a screw, the base installation body (12) is fixedly connected with the cylindrical ring type connecting body (13) through a screw, and the cylindrical ring type connecting body (13) is fixedly connected with the shell (1) through a screw; the conical fluted disc (3) and the flange disc type connecting body (9) are fixedly connected with each other through screws, the flange disc type connecting body (9) and the double-conical fluted disc (10) are fixedly connected with each other through screws, and the double-conical fluted disc (10) and the base mounting body (12) are connected with each other through a double-conical fluted disc bearing (11); the double-bevel gear disc (10) is meshed with the small bevel gear II (14), the small bevel gear II (14) is fixedly connected with the small bevel gear II shaft (15) through a spline, the small bevel gear II shaft (15) is connected with the base I (17) through the small bevel gear II bearing (16), the base I (17) is fixedly connected with the base installation body (12) through a welding mode, the small bevel gear II shaft (15) is connected with the specially-made clamping jaw I (18) through a thread, the specially-made clamping jaw I (18) is in clearance fit sliding connection with the circumferential fixing frame I (19), and the circumferential fixing frame I (19) is fixedly connected with the base installation body (12) through a welding mode; the double-bevel gear disc (10) is meshed with the small bevel gear III (20), the small bevel gear III (20) is fixedly connected with the small bevel gear III shaft (21) through a spline, the small bevel gear III shaft (21) is connected with the base II (23) through the small bevel gear III bearing (22), the base II (23) is fixedly connected with the base installation body (12) through a welding mode, the small bevel gear III shaft (21) is connected with the specially-made clamping jaw II (24) through a thread, the specially-made clamping jaw II (24) is in clearance fit sliding connection with the circumferential fixing frame II (25), and the circumferential fixing frame II (25) is fixedly connected with the base installation body (12) through a welding mode; the self-locking device (26) is positioned between the shell (1) and the small bevel gear I (5), a ratchet wheel (264) of the self-locking device (26) is mounted on the small bevel gear I shaft (6) through a spline, a base (261) of the self-locking device (26) is fixedly connected with the shell (1) and the bevel fluted disc support body (2) through screws respectively, and a direction-changing pawl (262) of the self-locking device (26) is in clearance fit sliding connection with the bevel fluted disc support body (2); the axes of the shell (1), the conical fluted disc support body (2), the conical fluted disc (3), the conical fluted disc bearing (4), the blocking cover (8), the flange disc type connecting body (9), the double conical fluted disc (10), the double conical fluted disc bearing (11), the base mounting body (12) and the cylindrical ring type connecting body (13) are on the same straight line; the bevel pinion I (5), bevel pinion I axle (6), bevel pinion I bearing (7), bevel pinion II (14), bevel pinion II axle (15), bevel pinion II bearing (16) base I (17) purpose-built jack catch I (18), circumference mount I (19), bevel pinion III (20), bevel pinion III axle (21), bevel pinion III bearing (22), base II (23), purpose-built jack catch II (24), circumference mount II (25) and self-lock device (26) respectively have three, and they center on same straight line is the partition and is distributed.
2. The novel clamping device for clamping the test piece is characterized in that the shell (1) is of a hollow cylinder structure, one end face of the cylinder is removed, the other end face of the cylinder is provided with a circular through hole I, three threaded holes equally divided around an axis are formed in the periphery of the circular through hole I, and one end of the shell (1) provided with the threaded holes is connected with one end of the cylindrical ring type connecting body (13) through a screw; the side surface of the cylinder is provided with three circular through holes II, the axes of the three circular through holes II are on the same plane I, the plane I is parallel to the two end surfaces, and the plane I is positioned on one side of the central symmetry plane of the two end surfaces and is close to the removed end surface; the side surface of the cylinder is provided with three circular through holes III, the axes of the three circular through holes III are on the same plane II, and the plane II and the plane I are symmetrical about the central symmetry plane of the two end surfaces.
3. The novel clamping device for clamping a test piece according to claim 2, characterized in that the conical fluted disc support (2) is located inside one end of the housing (1), and one end of the housing (1) is the end with the end face removed; the conical fluted disc support body (2) is of a flange disc type structure, an annular disc I and a hollow cylinder I with two removed end faces are connected with each other through welding, three circular through holes IV are formed in the edge of the annular disc I, a direction-changing pawl (262) of a self-locking device (26) is connected with the circular through holes IV in a sliding mode in a clearance fit mode, a step circular groove is formed in one end of the hollow cylinder I, and one end of the step circular groove is far away from one end of the annular disc I.
4. A new clamping device for clamping a test piece according to claim 3, characterized in that the self-locking device (26) comprises: a base (261), a direction-changing pawl (262), a spring (263) and a ratchet (264); the base (261) is of a hollow cuboid structure, one end face of the base is removed, the other end face of the base is provided with a circular through hole V, one side face of the base is fixedly installed on the inner side face of the shell (1) through screws, and the end face of the base (261) is fixedly installed on the outer edge of the circular ring disc I of the bevel gear disc support body (2) through screws; the direction-changing pawl (262) is positioned in the base (261) and fixedly installed together through an adjusting knob, a long and thin cylinder, a disc and wedge-shaped ratchet teeth sequentially through threads, the long and thin cylinder of the direction-changing pawl (262) is sequentially and respectively connected with the circular through hole IV of the bevel-gear disc support body (2) and the circular through hole V of the base (261) of the self-locking device (26) in a clearance fit sliding mode, the spring (263) is sleeved outside the long and thin cylinder of the direction-changing pawl (262), and the wedge-shaped ratchet teeth of the direction-changing pawl (262) and the ratchet wheel (264) are installed in a matched mode; one end of the spring (263) is fixedly connected with one end, provided with a circular through hole V, of the base (261), and the other end of the spring (263) is fixedly connected with one end of the disc of the direction-changing pawl (262); the ratchet wheel (264) is arranged at one end of the small bevel gear I shaft (6) through a spline and is close to one end of the small bevel gear I (5).
5. The novel clamping device for clamping the test piece is characterized in that the flange-disk type connecting body (9) is of a flange-disk type structure, a circular disk II and an inner hollow cylinder II are connected with each other through welding, one end face of the cylinder II is removed, the other end face of the cylinder II is provided with a round hole, and the end face provided with the round hole is an end face far away from the circular disk II.
6. The novel clamping device for clamping the test piece according to claim 5, wherein the double conical fluted disc (10) is a conical fluted disc having both an inner reverse taper and an outer reverse taper, i.e. a conical fluted disc with a high middle part and two low sides, the outer reverse conical teeth of the double conical fluted disc (10) are meshed with the conical teeth of the small bevel gear II (14), and the inner reverse conical teeth of the double conical fluted disc (10) are meshed with the conical teeth of the small bevel gear III (20).
7. The novel clamping device for clamping the test piece as claimed in claim 6, wherein the base mounting body (12) is of a flange-like disc structure, and is formed by sequentially connecting a circular disc III, an internal hollow cylinder III with two removed end faces and an internal hollow cylinder IV with two removed end faces by welding.
8. The novel clamping device for clamping the test piece is characterized in that one end of a small bevel gear II shaft (15) and one end of a small bevel gear III shaft (21) are respectively provided with a threaded hole, one end of a specially-made clamping jaw I (18) and one end of a specially-made clamping jaw II (24) are respectively provided with a thread, the other ends of the specially-made clamping jaws are respectively of a truncated cone structure, and the middle of the specially-made clamping jaw II is respectively of a cuboid structure; the special clamping jaw I (18) is connected with a threaded hole of the small bevel gear II shaft (15) in a threaded fit manner, a middle cuboid part of the special clamping jaw I (18) is connected with a cuboid hole of the circumferential fixing frame I (19) in a clearance fit manner, the end face of the circular table body end of the special clamping jaw I (18) is of an arc-shaped structure, and the circular table body end of the special clamping jaw I (18) is one end for clamping a test piece; the screw thread of purpose-made jack catch II (24) with the screw hole of bevel pinion III axle (21) passes through screw-thread fit interconnect, the middle cuboid portion of purpose-made jack catch II (24) with the cuboid hole clearance fit of circumference mount II (25) is connected, the terminal surface of the round platform end of purpose-made jack catch II (24) is arc structure, the round platform end of purpose-made jack catch II (24) is the one end of pressing from both sides tight test piece.
9. The novel clamping device for clamping the test piece as claimed in claim 8, characterized in that one end of the small bevel gear I shaft (6) is provided with a hexagon socket, and one end of the small bevel gear I shaft (6) is provided with one end for mounting the small bevel gear I bearing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615878.4U CN209850749U (en) | 2019-04-30 | 2019-04-30 | Novel clamping device for clamping test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920615878.4U CN209850749U (en) | 2019-04-30 | 2019-04-30 | Novel clamping device for clamping test piece |
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| Publication Number | Publication Date |
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| CN209850749U true CN209850749U (en) | 2019-12-27 |
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| CN201920615878.4U Expired - Fee Related CN209850749U (en) | 2019-04-30 | 2019-04-30 | Novel clamping device for clamping test piece |
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| CN (1) | CN209850749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151781A (en) * | 2020-01-19 | 2020-05-15 | 嘉兴辉宇传动技术有限公司 | Clamping and positioning mechanism for bearing inner ring cutting |
| CN111571295A (en) * | 2020-06-12 | 2020-08-25 | 杨明清 | Dustproof device of machine tool plane guide rail |
| CN113231798A (en) * | 2021-04-30 | 2021-08-10 | 成都飞机工业（集团）有限责任公司 | Automatic rivet dismounting device and using method thereof |
-
2019
- 2019-04-30 CN CN201920615878.4U patent/CN209850749U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111151781A (en) * | 2020-01-19 | 2020-05-15 | 嘉兴辉宇传动技术有限公司 | Clamping and positioning mechanism for bearing inner ring cutting |
| CN111571295A (en) * | 2020-06-12 | 2020-08-25 | 杨明清 | Dustproof device of machine tool plane guide rail |
| CN111571295B (en) * | 2020-06-12 | 2021-10-26 | 杨明清 | Dustproof device of machine tool plane guide rail |
| CN113231798A (en) * | 2021-04-30 | 2021-08-10 | 成都飞机工业（集团）有限责任公司 | Automatic rivet dismounting device and using method thereof |
| CN113231798B (en) * | 2021-04-30 | 2022-06-14 | 成都飞机工业（集团）有限责任公司 | Automatic rivet dismounting device and using method thereof |
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