CN209850752U - Self-locking clamping device for clamping outer wall of test piece - Google Patents
Self-locking clamping device for clamping outer wall of test piece Download PDFInfo
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- CN209850752U CN209850752U CN201920616060.4U CN201920616060U CN209850752U CN 209850752 U CN209850752 U CN 209850752U CN 201920616060 U CN201920616060 U CN 201920616060U CN 209850752 U CN209850752 U CN 209850752U
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- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 230000000903 blocking effect Effects 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 210000005069 ears Anatomy 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000237942 Conidae Species 0.000 description 1
- 208000035480 Ring chromosome 8 syndrome Diseases 0.000 description 1
- 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
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model relates to a from locking-type clamping device for centre gripping test piece outer wall, include: the device comprises a shell, a bevel gear disc support body, a bevel gear disc bearing, a bevel gear disc, a small bevel gear shaft, a small bevel gear bearing, a cylindrical inner gear ring, a baffle cover, a large cylindrical gear shaft, a small cylindrical gear, a rack type clamping jaw, a guide base and a self-locking device; the utility model relates to a from locking-type clamping device for centre gripping test piece outer wall passes through self-locking device's pawl and ratchet mutually support, thereby accomplish clamping device's auto-lock makes clamping device has the function of auto-lock, through a series of drive mechanism, will the arc end of rack formula jack catch is pushed the central axis, accomplishes the clamping work of test piece, has simple structure, compactness, and the manufacturability is good, advantages such as convenient operation.
Description
Technical Field
The utility model relates to a clamping device, specific saying so relates to a from locking-type clamping device for centre gripping test piece outer wall.
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 jig, inspection jig, assembly jig, machine tool fixture etc. but most clamping device have a lot of problems such as complicated structure, poor reliability, low precision, adaptability is poor. For solving a great deal of drawback of clamping device on the market, the utility model designs a clamping device for centre gripping test piece outer wall that this money is easy and simple to handle, elegant appearance, the precision is high.
Disclosure of Invention
The utility model discloses a simple structure, compactness are sought to the purpose and manufacturing, and the manufacturability is good, convenient operation, and the precision is high, safe practical one kind be used for the centre gripping test piece outer wall from locking-type clamping device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-locking clamping device for clamping an outer wall of a test piece, comprising: the device comprises a shell, a bevel gear disc support body, a bevel gear disc bearing, a bevel gear disc, a small bevel gear shaft, a small bevel gear bearing, a cylindrical inner gear ring, a baffle cover, a large cylindrical gear shaft, a small cylindrical gear, a rack type clamping jaw, a guide base and a self-locking device; the bevel gear disc support body is connected with the bevel gear disc through the bevel gear disc bearing, the bevel gear disc is meshed with the small bevel gear, the small bevel gear is fixedly connected with the small bevel gear shaft through a spline, and the small bevel gear shaft is connected with the shell through the small bevel gear bearing; the conical fluted disc support body is fixedly connected with the blocking cover through screws, and the blocking cover is connected with the shell through screws; the conical fluted disc is fixedly connected with the cylindrical inner gear ring through a screw, the cylindrical inner gear ring is meshed with the large cylindrical gear, the large cylindrical gear is fixedly connected with the large cylindrical gear shaft through a spline, the large cylindrical gear shaft is connected with the baffle cover through a large cylindrical gear shaft bearing, and the large cylindrical gear shaft is fixedly connected with the small cylindrical gear through a spline; the small cylindrical gear is meshed with the rack type clamping jaw, the rack type clamping jaw is in clearance fit sliding connection with the guide base, and the guide base is fixedly connected with the blocking cover through welding; the self-locking device is positioned between the shell and the small bevel gear, a ratchet wheel of the self-locking device is arranged on the small bevel gear shaft through a spline, a base of the self-locking device is fixedly connected with the shell through a screw, and an adjusting screw rod of the self-locking device is connected with the shell through threads; the axes of the shell, the conical fluted disc support, the conical fluted disc bearing, the conical fluted disc, the baffle cover and the cylindrical inner gear ring are on the same straight line; the small bevel gear, the small bevel gear shaft, the small bevel gear bearing, the large cylindrical gear shaft bearing, the small cylindrical gear, the rack type clamping jaw, the guide base and the self-locking device are respectively provided with three sets which are distributed around the same straight line in an equal distribution manner.
Further, the shell is inside hollow cylinder it has three circular through-hole, and three to all divide on the side of cylinder it is located the central symmetry plane department of two terminal surfaces it has three screw thread through-hole all to divide on the side of cylinder, just the screw thread through-hole is located circular through-hole next door, a terminal surface of cylinder is removed, and another terminal surface is opened has the round hole, around the round hole, equally divide the welding to have three arc ear, the shell arc ear with the one end of keeping off the lid is connected through the screw.
Further, the self-locking device includes: the device comprises a base, a spring, a support frame, an adjusting screw rod, a pawl and a ratchet wheel; the base is of a cuboid structure and is fixedly mounted on the inner side surface of the shell through screws, the spring is welded at one end of the side surface of the base, and the support frame is welded at the other end of the side surface of the base; the support frame is of a quadrangular frustum pyramid structure, the lower bottom surface end of the support frame is welded on the base, and the upper bottom surface end of the support frame is hinged to one side, away from the middle of the pawl, of the middle of the pawl and is away from teeth of the pawl; the adjusting screw is arranged on the inner side of one end, far away from the teeth of the pawl, of the adjusting screw in a matched mode, the adjusting screw is fixedly arranged together through a screw rod, a cylinder and a circular truncated cone in sequence through threads, a shell made of an elastomer material with high resilience is glued outside the cylinder and the circular truncated cone, the screw rod of the adjusting screw is connected with the thread through hole of the shell through threads, and the cylindrical shell of the adjusting screw and the shell of the circular truncated cone are in contact fit with the inner side of one end, far away from the teeth of the pawl; one end of the spring is welded on the base, and the other end of the spring is welded on the other side of the middle of the pawl and is close to one side of teeth of the pawl; the ratchet wheel is installed at one end, close to teeth of the pawl, of the small bevel gear shaft in a matched mode, and the ratchet wheel is installed at one end, close to the small bevel gear, of the small bevel gear shaft through a spline.
Furthermore, the bevel-gear disc support body is located inside one end of the housing, the end face of the one end of the housing is removed, the bevel-gear disc support body is of a flange disc type structure, the circular disc and the hollow cylinder with two removed end faces are connected with each other through welding, a stepped circular groove is formed in one end of the hollow cylinder, and the end with the stepped circular groove is the end far away from the circular disc.
Furthermore, the stepped circular groove on the conical-toothed-disc support body is in interference fit with the inner ring of the conical-toothed-disc bearing, and the outer ring of the conical-toothed-disc bearing is in interference fit with the central circular hole of the conical toothed disc.
Furthermore, the toothless end of the conical fluted disc is fixedly connected with the cylindrical inner gear ring through screws, and the conical teeth of the conical fluted disc are meshed with the conical teeth of the small bevel gear.
Furthermore, the bevel pinion passes through splined connection in the one end of bevel pinion shaft, the other end of bevel pinion shaft is opened there is interior hexagonal hole, the other end of bevel pinion shaft with the inner circle interference fit of bevel pinion bearing is in the same place, bevel pinion bearing's outer lane with the shell circular through-hole passes through interference fit and is in the same place.
Furthermore, the blocking cover is of a circular ring-shaped structure, one end of the blocking cover is connected with one end of the bevel gear disc supporting body through a screw, the other end of the blocking cover is fixedly connected with the outer ring of the large cylindrical gear shaft bearing in an interference fit mode, and the blocking cover is fixedly installed at one end of the guide base in a welding mode.
Furthermore, the inner ring of the large cylindrical gear shaft bearing is fixedly connected with one end of the large cylindrical gear shaft through interference fit, and the other end of the large cylindrical gear shaft is fixedly connected with the small cylindrical gear through a spline.
Further, a side face of the rack type clamping jaw is provided with teeth, a dovetail groove is formed in the side face adjacent to the side face, the teeth of the rack type clamping jaw are meshed with the teeth of the small cylindrical gear, the dovetail groove is connected with the dovetail protrusion of the guide base in a clearance fit sliding mode, an end face of the rack type clamping jaw is of an arc-shaped structure, and one end face of the rack type clamping jaw is one end of a clamping test piece.
Implement the utility model relates to a from locking-type clamping device for centre gripping test piece outer wall, its beneficial effect lies in:
(1) the utility model relates to a self-locking clamping device for clamping the outer wall of a test piece.A hexagon socket wrench is used for clockwise rotating a small bevel gear shaft, and the small bevel gear shaft rotates to further drive the small bevel gear to rotate; the rotation of the small bevel gear drives the bevel gear disc to rotate so as to drive the cylindrical inner gear ring to rotate; the rotation of the cylindrical inner gear ring drives the large cylindrical gear to rotate, so that the large cylindrical gear shaft is driven to rotate; big cylinder gear shaft rotates and drives little cylinder gear rotates, and then drives rack formula jack catch makes linear motion, will rack formula jack catch's arc end is pushed the central axis, along with the increase that rack formula jack catch's arc end got into accomplishes the tight work of clamp of test piece, has simple structure, compactness, and the manufacturability is good, advantages such as convenient operation.
(2) A self-locking clamping device for clamping the outer wall of a test piece is characterized in that an adjusting screw rod is screwed clockwise by a hand, the adjusting screw rod rotates and moves downwards at the same time, a circular truncated cone side surface of the adjusting screw rod pushes a pawl to rotate, and the pawl is matched with a ratchet wheel, so that a bevel pinion shaft can only rotate clockwise, namely a rack type clamping jaw can only move towards the direction close to the central axis and can not move towards the direction away from the central axis, and 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 self-locking clamping device for clamping the outer wall of a test piece according to the present invention;
FIG. 2 is a structural diagram of the shelling of the self-locking clamping device for clamping the outer wall of the test piece of the present invention;
fig. 3 is an exploded view of the shelling structure of the self-locking clamping device for clamping the outer wall of the test piece according to the present invention;
fig. 4 is a schematic diagram of the clamping operation of the self-locking clamping device for clamping the outer wall of the test piece according to the present invention;
fig. 5 is a structural diagram of a self-locking device of the self-locking clamping device for clamping the outer wall of the test piece of the present invention;
fig. 6 is a two-dimensional view of the housing of the self-locking clamping device for clamping the outer wall of the test piece according to the present invention;
in the figure: the device comprises a shell-1, a bevel gear support body-2, a bevel gear bearing-3, a bevel gear disc-4, a small bevel gear-5, a small bevel gear shaft-6, a small bevel gear bearing-7, a cylindrical inner gear ring-8, a baffle cover-9, a large cylindrical gear-10, a large cylindrical gear shaft-11, a small cylindrical gear-12, a rack type claw-13, a guide base-14, a self-locking device-15, a base-151, a spring-152, a support frame-153, an adjusting screw-154, a pawl-155 and a ratchet wheel-156.
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 self-locking clamping device for clamping the outer wall of a test piece comprises: the device comprises a shell 1, a bevel gear disc support body 2, a bevel gear disc bearing 3, a bevel gear disc 4, a small bevel gear 5, a small bevel gear shaft 6, a small bevel gear bearing 7, a cylindrical inner gear ring 8, a baffle cover 9, a large cylindrical gear 10, a large cylindrical gear shaft 11, a small cylindrical gear 12, a rack type clamping jaw 13, a guide base 14 and a self-locking device 15; the bevel-toothed disc support body 2 is connected with the bevel-toothed disc 4 through the bevel-toothed disc bearing 3, the bevel-toothed disc 4 is meshed with the small bevel gear 5, the small bevel gear 5 is fixedly connected with the small bevel gear shaft 6 through a spline, and the small bevel gear shaft 6 is connected with the shell 1 through the small bevel gear bearing 7; the bevel gear disc support body 2 is fixedly connected with the blocking cover 9 through screws, and the blocking cover 9 is connected with the shell 1 through screws; the bevel gear disc 4 is fixedly connected with the cylindrical inner gear ring 8 through a screw, the cylindrical inner gear ring 8 is meshed with the large cylindrical gear 10, the large cylindrical gear 10 is fixedly connected with the large cylindrical gear shaft 11 through a spline, the large cylindrical gear shaft 11 is connected with the baffle cover 9 through a large cylindrical gear shaft bearing, and the large cylindrical gear shaft 11 is fixedly connected with the small cylindrical gear 12 through a spline; the small cylindrical gear 12 is meshed with the rack type clamping jaw 13, the rack type clamping jaw 13 is in clearance fit sliding connection with the guide base 14, and the guide base 14 is fixedly connected with the blocking cover 9 through welding; the self-locking device 15 is positioned between the shell 1 and the bevel pinion 5, a ratchet wheel 156 of the self-locking device 15 is mounted on the bevel pinion shaft 6 through a spline, a base 151 of the self-locking device 15 is fixedly connected with the shell 1 through a screw, and an adjusting screw 154 of the self-locking device 15 is connected with the shell 1 through a thread; the axes of the shell 1, the conical-toothed-disc support body 2, the conical-toothed-disc bearing 3, the conical toothed disc 4, the baffle cover 9 and the cylindrical inner gear ring 8 are on the same straight line; the small bevel gear 5, the small bevel gear shaft 6, the small bevel gear bearing 7, the large cylindrical gear 10, the large cylindrical gear shaft 11, the large cylindrical gear shaft bearing, the small cylindrical gear 12, the rack type claw 13, the guide base 14 and the self-locking device 15 are respectively provided with three sets which are distributed around the same straight line in an equal distribution manner.
Further, shell 1 is inside hollow cylinder it has three circular through-hole, and three to all divide on the side of cylinder it is located the central symmetry plane department of two terminal surfaces it has three screw thread through-hole all to divide on the side of cylinder, just the screw thread through-hole is located circular through-hole next door, a terminal surface of cylinder is removed, and another terminal surface is opened has the round hole, around the round hole, equally divide the welding to have three arc ear, shell 1 the arc ear with the one end of keeping off lid 9 is connected through the screw.
Further, the self-locking device 15 includes: a base 151, a spring 152, a support frame 153, an adjusting screw 154, a pawl 155 and a ratchet wheel 156; the base 151 is of a cuboid structure and is fixedly mounted on the inner side surface of the shell 1 through screws, the spring 152 is welded at one end of the side surface of the base 151, and the support frame 153 is welded at the other end of the side surface of the base 151; the supporting frame 153 is of a quadrangular frustum pyramid structure, the lower bottom surface end of the supporting frame 153 is welded on the base 151, and the upper bottom surface end is hinged to one side, which is far away from teeth of the pawl 155, of the middle of the pawl 155; the adjusting screw 154 is installed on the inner side of one end, far away from the teeth of the pawl 155, of the adjusting screw 154 in a matching manner, the adjusting screw 154 is fixedly installed together through a screw, a cylinder and a circular truncated cone sequentially through threads, the outer parts of the cylinder and the circular truncated cone are glued with a shell made of an elastomer material with high resilience, the screw of the adjusting screw 154 is connected with the threaded through hole of the shell 1 through threads, and the cylindrical shell and the circular truncated cone shell of the adjusting screw 154 are in contact fit with the inner side of one end, far away from the teeth of the pawl 155; one end of the spring 152 is welded on the base 151, and the other end is welded on the other side of the middle of the pawl 155 and is one side close to the teeth of the pawl 155; one end of the teeth near the pawl 155 is fitted with the ratchet wheel 156, and the ratchet wheel 156 is spline-mounted on one end of the bevel pinion shaft 6, which is near one end of the bevel pinion 5.
Further, the bevel-gear disc support body 2 is located inside one end of the housing 1, and one end of the housing 1 is an end with an end face removed, the bevel-gear disc support body 2 is of a flange disc type structure, and is formed by a circular disc and an internal hollow cylinder with two end faces removed, which are connected together by welding, wherein one end of the internal hollow cylinder is provided with a stepped circular groove, and the end provided with the stepped circular groove is an end far away from the circular disc; the stepped circular groove on the conical fluted disc support body 2 is in interference fit with the inner ring of the conical fluted disc bearing 3, and the outer ring of the conical fluted disc bearing 3 is in interference fit with the central circular hole of the conical fluted disc 4; the toothless end of the conical fluted disc 4 is fixedly connected with the cylindrical inner gear ring 8 through a screw, and the conical teeth of the conical fluted disc 4 are meshed with the conical teeth of the small bevel gear 5; the bevel pinion 5 is connected to one end of the bevel pinion shaft 6 through a spline, a hexagon socket is formed in the other end of the bevel pinion shaft 6, the other end of the bevel pinion shaft 6 is in interference fit with an inner ring of the bevel pinion bearing 7, and an outer ring of the bevel pinion bearing 7 is in interference fit with the circular through hole of the shell 1; the baffle cover 9 is of an annular structure, one end of the baffle cover 9 is connected with one end of the bevel gear disc support body 2 through a screw, the other end of the baffle cover 9 is fixedly connected with an outer ring of the large cylindrical gear shaft bearing in an interference fit mode, and the baffle cover is fixedly installed with one end of the guide base 14 in a welding mode; the inner ring of the large cylindrical gear shaft bearing is fixedly connected with one end of the large cylindrical gear shaft 11 through interference fit, and the other end of the large cylindrical gear shaft 11 is fixedly connected with the small cylindrical gear 12 through a spline; tooth is opened to a side of rack formula jack catch 13, and it has the dovetail to open on the both sides face adjacent with this side, rack formula jack catch 13 the tooth with little cylindrical gear 12's tooth intermeshing, the dovetail with the forked tail arch of guide base 14 passes through clearance fit sliding connection, a terminal surface of rack formula jack catch 13 is the arc structure, a terminal surface of rack formula jack catch 13 is the one end of pressing from both sides tight test piece.
As shown in fig. 1, 2, 3, 4, 5, and 6, the working method of the self-locking clamping device for clamping the outer wall of the 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 disc 4 through the bevel gear disc bearing 3, the bevel gear disc 4 is meshed with the small bevel gear 5, the small bevel gear 5 is fixedly connected with the small bevel gear shaft 6 through a spline, and the small bevel gear shaft 6 is connected with the shell 1 through the small bevel gear bearing 7; fixedly connecting the bevel gear disc support body 2 with the blocking cover 9 through screws, wherein the blocking cover 9 is connected with the shell 1 through screws; fixedly connecting the conical fluted disc 4 with the cylindrical inner gear ring 8 through a screw, wherein the cylindrical inner gear ring 8 is meshed with the large cylindrical gear 10, the large cylindrical gear 10 is fixedly connected with the large cylindrical gear shaft 11 through a spline, the large cylindrical gear shaft 11 is connected with the baffle cover 9 through a large cylindrical gear shaft bearing, and the large cylindrical gear shaft 11 is fixedly connected with the small cylindrical gear 12 through a spline; the small cylindrical gear 12 is meshed with the rack type clamping jaw 13, the rack type clamping jaw 13 is in clearance fit sliding connection with the guide base 14, and the guide base 14 is fixedly connected with the blocking cover 9 through welding; the self-locking device 15 is arranged between the shell 1 and the bevel pinion 5, a ratchet wheel 156 of the self-locking device 15 is arranged on the bevel pinion shaft 6 through a spline, a base 151 of the self-locking device 15 is fixedly connected with the shell 1 through a screw, and an adjusting screw 154 of the self-locking device 15 is connected with the shell 1 through a thread; the axes of the shell 1, the conical fluted disc support body 2, the conical fluted disc bearing 3, the conical fluted disc 4, the baffle cover 9 and the cylindrical inner gear ring 8 are on the same straight line; the bevel pinion 5, the bevel pinion shaft 6, the bevel pinion bearing 7, the large cylindrical gear 10, the large cylindrical gear shaft 11, the large cylindrical gear shaft bearing, the small cylindrical gear 12, the rack-type claw 13, the guide base 14, and the self-locking device 15 are respectively provided with three sets, so that the three sets are equally distributed around the same straight line.
When a test piece is clamped, the adjusting screw 154 is screwed clockwise by hand, the adjusting screw 154 rotates and moves downwards at the same time, the circular truncated cone side surface of the adjusting screw 154 pushes the pawl 155 to rotate, and then the pawl 155 is matched with the ratchet wheel 156, so that the bevel pinion I shaft 6 can only rotate clockwise, namely the rack type clamping jaw 13 can only move towards the direction close to the central axis and can not move towards the direction away from the central axis, and the self-locking setting of the clamping device is completed; clockwise rotating the small bevel gear shaft 6 by using an inner hexagonal wrench, and rotating the small bevel gear shaft 6 to further drive the small bevel gear 5 to rotate; the rotation of the small bevel gear 5 drives the bevel gear disc 4 to rotate, and further drives the cylindrical inner gear ring 8 to rotate; the rotation of the cylindrical inner gear ring 8 drives the large cylindrical gear 10 to rotate, and further drives the large cylindrical gear shaft 11 to rotate; the large cylindrical gear shaft 11 rotates to drive the small cylindrical gear 12 to rotate, and then drives the rack type clamping jaw 13 to do linear motion, the arc tail end of the rack type clamping jaw 13 is pushed to the central axis, and along with the increase of the arc tail end of the rack type clamping jaw 13, the clamping work of a test piece is completed.
When a test piece is loosened, the adjusting screw 154 is screwed counterclockwise by hand, the adjusting screw 154 rotates and moves upwards at the same time, the circular truncated cone side surface of the adjusting screw 154 is far away from the pawl 155, the compressed spring 152 freely extends to push the pawl 155 to rotate, and further the pawl 155 and the ratchet wheel 156 are separated from each other, so that the condition that the bevel pinion I shaft 6 can only rotate clockwise is eliminated, the rack type clamping jaw 13 can move in the direction away from the central axis, and the unlocking setting of the clamping device is completed; the small bevel gear shaft 6 is rotated anticlockwise by an inner hexagonal wrench, and the small bevel gear shaft 6 rotates to drive the small bevel gear 5 to rotate; the rotation of the small bevel gear 5 drives the bevel gear disc 4 to rotate, and further drives the cylindrical inner gear ring 8 to rotate; the rotation of the cylindrical inner gear ring 8 drives the large cylindrical gear 10 to rotate, and further drives the large cylindrical gear shaft 11 to rotate; big cylindrical gear axle 11 rotates and drives little cylindrical gear 12 rotates, and then drives rack formula jack catch 13 makes linear motion is made the central axis is kept away from to rack formula jack catch 13's arc end, along with the increase of keeping away from at rack formula jack catch 13's arc end accomplishes the work of loosening of test piece.
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 (10)
1. A from locking-type clamping device for centre gripping test piece outer wall which characterized in that includes: the device comprises a shell (1), a bevel gear disc support body (2), a bevel gear disc bearing (3), a bevel gear disc (4), a small bevel gear (5), a small bevel gear shaft (6), a small bevel gear bearing (7), a cylindrical inner gear ring (8), a baffle cover (9), a large cylindrical gear (10), a large cylindrical gear shaft (11), a small cylindrical gear (12), a rack type clamping jaw (13), a guide base (14) and a self-locking device (15); the bevel gear disc support body (2) is connected with the bevel gear disc (4) through the bevel gear disc bearing (3), the bevel gear disc (4) is meshed with the small bevel gear (5), the small bevel gear (5) is fixedly connected with the small bevel gear shaft (6) through a spline, and the small bevel gear shaft (6) is connected with the shell (1) through the small bevel gear bearing (7); the bevel gear disc supporting body (2) is fixedly connected with the blocking cover (9) through screws, and the blocking cover (9) is connected with the shell (1) through screws; the bevel gear disc (4) is fixedly connected with the cylindrical inner gear ring (8) through screws, the cylindrical inner gear ring (8) is meshed with the large cylindrical gear (10), the large cylindrical gear (10) is fixedly connected with the large cylindrical gear shaft (11) through splines, the large cylindrical gear shaft (11) is connected with the baffle cover (9) through a large cylindrical gear shaft bearing, and the large cylindrical gear shaft (11) is fixedly connected with the small cylindrical gear (12) through splines; the small cylindrical gear (12) is meshed with the rack type clamping jaw (13), the rack type clamping jaw (13) is in clearance fit sliding connection with the guide base (14), and the guide base (14) is fixedly connected with the blocking cover (9) through welding; the self-locking device (15) is positioned between the shell (1) and the small bevel gear (5), a ratchet wheel (156) of the self-locking device (15) is arranged on the small bevel gear shaft (6) through a spline, a base (151) of the self-locking device (15) is fixedly connected with the shell (1) through a screw, and an adjusting screw rod (154) of the self-locking device (15) is connected with the shell (1) through a thread; the axes of the shell (1), the conical-toothed-disc supporting body (2), the conical-toothed-disc bearing (3), the conical toothed disc (4), the blocking cover (9) and the cylindrical inner gear ring (8) are on the same straight line; the small bevel gear (5), the small bevel gear shaft (6), the small bevel gear bearing (7), the large cylindrical gear (10), the large cylindrical gear shaft (11), the large cylindrical gear shaft bearing, the small cylindrical gear (12), the rack type clamping jaw (13), the guide base (14) and the self-locking device (15) are respectively provided with three sets which surround the same straight line and are distributed in an equal division manner.
2. The self-locking clamping device for clamping the outer wall of a test piece according to claim 1, wherein the shell (1) is a cylinder with a hollow inside, three circular through holes are formed on the side surface of the cylinder, the three circular through holes are located on the central symmetry plane of two end surfaces, three threaded through holes are formed on the side surface of the cylinder, the threaded through holes are located beside the circular through holes, one end surface of the cylinder is removed, the other end surface of the cylinder is provided with a circular hole, three arc-shaped ears are welded around the circular hole, and the arc-shaped ears of the shell (1) are connected with one end of the blocking cover (9) through screws.
3. A self-locking clamping device for clamping the outer wall of a test piece according to claim 2, characterised in that the self-locking device (15) comprises: the device comprises a base (151), a spring (152), a support frame (153), an adjusting screw rod (154), a pawl (155) and a ratchet wheel (156); the base (151) is of a cuboid structure and is fixedly mounted on the inner side surface of the shell (1) through screws, the spring (152) is welded at one end of the side surface of the base (151), and the support frame (153) is welded at the other end of the side surface of the base (151); the support frame (153) is of a quadrangular frustum pyramid structure, the lower bottom surface end of the support frame (153) is welded on the base (151), and the upper bottom surface end is hinged to one side, away from the middle of the pawl (155), of the middle of the pawl (155) and is far away from teeth of the pawl (155); the adjusting screw rod (154) is installed on the inner side of one end, far away from the teeth of the pawl (155), of the adjusting screw rod (154), a cylinder and a circular truncated cone are sequentially and fixedly installed together through threads, a shell made of an elastomer material with high resilience is glued outside the cylinder and the circular truncated cone, the screw rod of the adjusting screw rod (154) is connected with the thread through hole of the shell (1) through threads, and the cylinder shell of the adjusting screw rod (154) and the shell of the circular truncated cone are in contact fit with the inner side of one end, far away from the teeth of the pawl (155); one end of the spring (152) is welded on the base (151), the other end of the spring is welded on the other side of the middle of the pawl (155), and the spring is close to one side of teeth of the pawl (155); one end of the tooth close to the pawl (155) is provided with the ratchet wheel (156) in a matching way, and the ratchet wheel (156) is arranged at one end of the small bevel gear shaft (6) through a spline and is close to one end of the small bevel gear (5).
4. The self-locking clamping device for clamping the outer wall of the test piece according to claim 3, wherein the conical-toothed disc support body (2) is located inside one end of the housing (1), the end face of the housing (1) is removed, the conical-toothed disc support body (2) is of a flange-disc type structure, an inner hollow cylinder with two end faces removed and a circular ring disc are connected with each other by welding, a stepped circular groove is formed at one end of the inner hollow cylinder, and the end with the stepped circular groove is the end away from the circular ring disc.
5. The self-locking clamping device for clamping the outer wall of the test piece according to claim 4, wherein the stepped circular groove on the conical-toothed-disc support body (2) is in interference fit with the inner ring of the conical-toothed-disc bearing (3), and the outer ring of the conical-toothed-disc bearing (3) is in interference fit with the central circular hole of the conical-toothed disc (4).
6. The self-locking clamping device for clamping the outer wall of the test piece according to claim 5, wherein the toothless end of the conical fluted disc (4) and the cylindrical inner gear ring (8) are fixedly connected with each other through screws, and the conical teeth of the conical fluted disc (4) are meshed with the conical teeth of the small bevel gear (5).
7. The self-locking clamping device for clamping the outer wall of the test piece as claimed in claim 6, wherein the bevel pinion (5) is connected to one end of the bevel pinion shaft (6) through a spline, the other end of the bevel pinion shaft (6) is provided with a hexagon socket, the other end of the bevel pinion shaft (6) is in interference fit with the inner ring of the bevel pinion bearing (7), and the outer ring of the bevel pinion bearing (7) is in interference fit with the circular through hole of the housing (1).
8. The self-locking clamping device for clamping the outer wall of the test piece as claimed in claim 7, wherein the blocking cover (9) is of a circular ring structure, one end of the blocking cover (9) is connected with one end of the bevel gear disc support body (2) through a screw, and the other end of the blocking cover (9) is fixedly connected with the outer ring of the large cylindrical gear shaft bearing in an interference fit manner and fixedly installed with one end of the guide base (14) in a welding manner.
9. The self-locking clamping device for clamping the outer wall of the test piece as claimed in claim 8, wherein the inner ring of the bearing of the large cylindrical gear shaft and one end of the large cylindrical gear shaft (11) are fixedly connected with each other through interference fit, and the other end of the large cylindrical gear shaft (11) and the small cylindrical gear (12) are fixedly connected with each other through splines.
10. The self-locking clamping device for clamping the outer wall of the test piece according to claim 9, wherein one side surface of the rack type clamping jaw (13) is provided with teeth, two side surfaces adjacent to the side surface are provided with dovetail grooves, the teeth of the rack type clamping jaw (13) are meshed with the teeth of the small cylindrical gear (12), the dovetail grooves are in clearance fit sliding connection with dovetail protrusions of the guide base (14), one end surface of the rack type clamping jaw (13) is of an arc structure, and one end surface of the rack type clamping jaw (13) is one end for clamping the test piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616060.4U CN209850752U (en) | 2019-04-30 | 2019-04-30 | Self-locking clamping device for clamping outer wall of test piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920616060.4U CN209850752U (en) | 2019-04-30 | 2019-04-30 | Self-locking clamping device for clamping outer wall of test piece |
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| CN209850752U true CN209850752U (en) | 2019-12-27 |
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| CN201920616060.4U Expired - Fee Related CN209850752U (en) | 2019-04-30 | 2019-04-30 | Self-locking clamping device for clamping outer wall of test piece |
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| CN111884138A (en) * | 2020-08-21 | 2020-11-03 | 陈胜军 | Equipment capable of peeling cables with different numbers of wire cores |
| CN114589324A (en) * | 2022-03-25 | 2022-06-07 | 重庆明达天晨汽车零部件制造有限公司 | Clamping jaw with correcting function for joint fork machining |
| CN114738583A (en) * | 2022-04-19 | 2022-07-12 | 浙江万通管业有限公司 | Stainless steel corrugated pipe for gas pipeline and assembling method thereof |
| CN115096716A (en) * | 2022-07-04 | 2022-09-23 | 西南石油大学 | Ground observation experiment device for compressive strength of underground rock formation of oil and gas well |
| CN115805446A (en) * | 2023-01-17 | 2023-03-17 | 山东卓益数控设备有限公司 | Workpiece clamping mechanism for numerical control machine tool |
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2019
- 2019-04-30 CN CN201920616060.4U patent/CN209850752U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111884138A (en) * | 2020-08-21 | 2020-11-03 | 陈胜军 | Equipment capable of peeling cables with different numbers of wire cores |
| CN114589324A (en) * | 2022-03-25 | 2022-06-07 | 重庆明达天晨汽车零部件制造有限公司 | Clamping jaw with correcting function for joint fork machining |
| CN114738583A (en) * | 2022-04-19 | 2022-07-12 | 浙江万通管业有限公司 | Stainless steel corrugated pipe for gas pipeline and assembling method thereof |
| CN114738583B (en) * | 2022-04-19 | 2024-01-09 | 浙江万通管业有限公司 | Stainless steel corrugated pipe for gas pipeline and assembling method thereof |
| CN115096716A (en) * | 2022-07-04 | 2022-09-23 | 西南石油大学 | Ground observation experiment device for compressive strength of underground rock formation of oil and gas well |
| CN115805446A (en) * | 2023-01-17 | 2023-03-17 | 山东卓益数控设备有限公司 | Workpiece clamping mechanism for numerical control machine tool |
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