CN114179034A - Clamping device for nut and bolt in tightening process - Google Patents
Clamping device for nut and bolt in tightening process Download PDFInfo
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- CN114179034A CN114179034A CN202111654860.3A CN202111654860A CN114179034A CN 114179034 A CN114179034 A CN 114179034A CN 202111654860 A CN202111654860 A CN 202111654860A CN 114179034 A CN114179034 A CN 114179034A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims abstract description 13
- 210000001503 joint Anatomy 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention discloses a clamping device for a nut and a bolt in a tightening process, which relates to the technical field of locking clamps for threaded parts and comprises the following components: a fixed ring sleeve and a movable ring sleeve; two positioning ear blocks with through holes are symmetrically welded at the upper end and the lower end of the fixed ring sleeve, wherein a torsion resistant rod is vertically welded at the top end of the upper positioning ear block in a supporting manner; the upper end and the lower end of the movable ring sleeve are also symmetrically welded with two positioning lug blocks with through holes, a hexagonal fixing ring is clamped between the movable ring sleeve and the fixed ring sleeve in a closed manner, and a nut on a bolt penetrate through a circular through groove on a back plate of the fixed ring sleeve to be in inserted fit with the hexagonal fixing ring; two pin shafts are symmetrically arranged on the upper and lower positioning ear blocks of the movable ring sleeve and the fixed ring sleeve in a penetrating way. The invention can release the movable ring sleeve force and the locking pins at two positions only by returning the handle and the U-shaped pushing frame, thereby solving the problem that the locking clamp and the bolt or the nut can not be quickly and conveniently unloaded and separated after the locking clamp is screwed down.
Description
Technical Field
The invention relates to the technical field of locking clamps for threaded parts, in particular to a clamping device for a nut and a bolt in a tightening process.
Background
For example, patent No. CN202110100181.5 discloses a bolt rotation preventing device, which includes a sliding plate, a mounting plate and two plate sleeves; the plate sleeve has the portion of cup jointing, the trepanning has been seted up in the portion of cup jointing, be equipped with mounting hole and spout on the mounting panel, each portion of cup jointing is inserted and is located in each mounting hole, the spout interpolation is equipped with the mounting, the mounting can slide along the spout, mounting connecting plate sleeve and sliding plate, the draw-in groove has been seted up on the sliding plate, spacing hole has been seted up with the position that the draw-in groove corresponds on the mounting panel, the pivot passes draw-in groove and spacing hole in proper order, sliding plate and mounting panel are connected respectively to the both ends of pivot, the draw-in groove has spacing portion and off-load portion that are linked together, and extend to the both sides of spacing portion respectively, the pivot has the butt portion that meets with spacing portion, drive pivot rotation can make butt portion and spacing portion disconnection joint, and make butt portion sliding joint in the off-load portion. By adopting the bolt follow-up rotation prevention device provided by the technical scheme of the invention, the bolt follow-up rotation can be prevented, and the potential safety hazard that the hand is pinched to hurt people is avoided;
for example, patent No. CN201811162151.1 discloses a follow-up rotation prevention tightening tool, which includes a support assembly, a sliding assembly, a fixing head and a tightening head; the supporting assembly comprises a supporting column, a first mounting plate and a second mounting plate; the first mounting plate is fixedly mounted at one end of the support column, and the sliding assembly is mounted at the other end of the support column; the second mounting plate is mounted on the sliding assembly; the sliding assembly comprises a sliding rail and a sliding block, the sliding rail is arranged on the supporting column, and the sliding block is connected with the sliding rail in a sliding manner; the fixed head is fixedly arranged on the second mounting plate and is positioned on one side of the second mounting plate close to the first mounting plate; the fixing head is configured to apply an anti-rotation torque to a nut on a bolt to be tightened; the tightening head is rotatably arranged on the first mounting plate and is used for applying tightening torque to a bolt to be tightened; the invention can prevent the nut from following rotation.
The nut or the bolt are in a free state before being screwed, the screwing operation is not convenient, the locking clamp is easy to separate from the nut and the bolt in the screwing working process due to the lack of an auxiliary positioning assembly for the nut or the bolt, and the locking clamp cannot be quickly and conveniently unloaded and separated from the bolt or the nut after being screwed.
Disclosure of Invention
In view of the above, the invention provides a clamping device for a nut and a bolt in a tightening process, which solves the problem that a follow-up rotation prevention locking clamp is easy to separate from the nut and the bolt in the tightening process.
The invention provides the following technical scheme: a clamping device for a nut and a bolt in a tightening process comprises a fixed ring sleeve, a movable ring sleeve, a square fixed disc and a square movable disc; two positioning lug blocks with through holes are symmetrically welded at the upper end and the lower end of the fixed ring sleeve, wherein an anti-torque rod is vertically welded at the top end of the upper positioning lug block in a supporting manner, and a circular through groove is formed in the center of the back plate of the fixed ring sleeve; the upper end and the lower end of the movable ring sleeve are also symmetrically welded with two positioning lug blocks with through holes, a hexagonal fixing ring is clamped between the movable ring sleeve and the fixed ring sleeve in a closed manner, and a nut on a bolt penetrate through a circular through groove on a back plate of the fixed ring sleeve to be in inserted fit with the hexagonal fixing ring; two pin shafts are symmetrically arranged on the upper and lower positioning lug blocks of the movable ring sleeve and the fixed ring sleeve in a penetrating manner, the tail end sections of the two pin shafts are both provided with threads, the tail end sections of the two pin shafts are in threaded connection with a strip-shaped fixed plate, and the positions, close to the movable ring sleeve, of the two pin shafts are rotatably connected with a pushing part;
six fixing ring sleeves are symmetrically arranged on the left and right of the square fixing disc; six movable ring sleeves are symmetrically arranged on the square movable disc, six guide pins are symmetrically welded at the idle positions among the six movable disc bodies, and the six guide pins are used for sliding butt joint and closing of the square movable disc and the square fixed disc; the tensioning pin is provided with two positions, the tensioning pin is integrally composed of a cylindrical seat and lugs welded on the cylindrical seat, the two cylindrical seats are vertically symmetrical and penetrate through a square movable disc and a square fixed disc which are closed together in a butt joint mode, an eccentric shaft sleeve is connected between the two lugs in a rotating mode, a connecting pin is inserted into a central shaft hole of the two lugs and the eccentric shaft sleeve in a penetrating mode, and a rectangular push plate is welded on the outer wall of the circumference of the eccentric shaft sleeve in a supporting mode.
Preferably, concave holes are symmetrically formed in the back plate of the fixed ring sleeve up and down, and the two concave holes are located on the periphery of the circular through groove in the back of the fixed ring sleeve; the movable ring sleeve comprises an inclined chamfer surface, and the inner wall of the circumference of the opening position of the movable ring sleeve is provided with the inclined chamfer surface of an annular structure.
Preferably, two axial anti-rotation pins are inserted on the annular end surface of the hexagonal fixing ring close to the fixing ring sleeve side in a vertically symmetrical sliding manner, and the head ends of the two axial anti-rotation pins are in a conical structure; the locking pins which are obliquely supported at two positions are symmetrically inserted into the outer wall of the circumference of the hexagonal fixing ring in a penetrating manner, and the tail ends of the locking pins at two positions are in an oblique-section structure.
Preferably, the pushing member is integrally formed by welding a U-shaped pushing frame and a handle welded to the middle position of the U-shaped pushing frame together, wherein the U-shaped pushing frame swings and abuts against and contacts with a back plate of the movable ring sleeve; two pins are arranged at the positions of the pin shafts close to the movable ring sleeve in a penetrating way, and a position limiting pin shaft is arranged at the tail end sections of the two pins in a penetrating way in an inserting way; the upper horizontal top plate and the lower horizontal top plate of the U-shaped pushing frame are both provided with a jack in a penetrating way, and the two jacks are in rotating insertion fit with the tail end sections of the two bolts.
Preferably, when the movable ring sleeve and the fixed ring sleeve slide, close and clamp tightly, the head end sections of the two axial anti-rotation pins are correspondingly matched with the two concave holes in an inserting manner; when the movable ring sleeve and the fixed ring sleeve slide, close and clamp, the tail end oblique section parts of the two locking pins are in abutting contact with the corresponding oblique chamfer surfaces.
Preferably, the method comprises the following steps:
1. placing a hexagon nut or a hexagon nut of a bolt into the hexagon fixing ring through a circular through groove on the back plate of the fixing ring sleeve;
2. twisting the handle towards the bar-shaped fixing plate, wherein the U-shaped pushing frame is driven to push the movable ring sleeve when the handle is twisted, so that the movable ring sleeve and the fixed ring sleeve are slidably closed and the hexagonal fixing ring is clamped;
3. when the movable ring is sleeved on the sliding clamping hexagonal fixing ring, the inclined chamfer surface can perform inward sliding pushing on two locking pins through the inclined surface guide principle, and meanwhile, two axial anti-rotation pins are spliced and combined with two concave holes;
4. the two locking pins slide inwards and are pushed to fix the hexagon nut or the hexagon nut of the bolt in the hexagon fixing ring;
5. and the torsion bar is close to the reverse stress point of the part, the bolt or the nut is screwed by a spanner, and finally the handle is rotated to the initial position, so that the movable ring sleeve is subjected to force unloading, the two locking pins are loosened, and the locking device is integrally taken down.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the insertion fit of the axial anti-rotation pin and the two concave holes, the hexagonal fixing ring and the fixing ring can be sleeved and fixed together, so that a nut or a bolt in the hexagonal fixing ring keeps static, and the nut or the bolt is prevented from rotating along with the rotation of a wrench, and the rotation and tightness operation cannot be normally implemented;
2. according to the invention, through the inclined plane pushing of the inclined chamfer surface, the two locking pins can press and fix the nuts of the nuts or the bolts in the hexagonal fixing ring, so that the nuts or the bolts are prevented from falling off from the locking clamp during screwing and loosening operations, time waste caused by repeated operations is avoided, and the movable ring sleeve can release force and the two locking pins can be loosened only by returning the handle and the U-shaped pushing frame, so that the locking clamp and the bolts or the nuts can be quickly and conveniently unloaded after screwing is finished, and the locking clamp and the nuts or the bolts can be conveniently separated;
3. the square fixed disc and the square movable disc are in butt joint and closed to form the batch locking clamp, the batch locking clamp can simultaneously perform tightening and loosening operation on a plurality of nuts or bolts, and the batch locking clamp is suitable for batch tightening and loosening operation of threaded parts.
Drawings
FIG. 1 is a schematic view of the present invention in an assembled state;
FIG. 2 is a schematic view of the installation position of the strip-shaped fixing plate according to the present invention;
FIG. 3 is a schematic view of the installation position of the pushing member of the present invention;
FIG. 4 is an exploded view of the components of the present invention;
FIG. 5 is a schematic view of a push member of the present invention;
FIG. 6 is a schematic view of the movable collar of the present invention;
FIG. 7 is a schematic view of a hexagonal fixed ring structure according to the present invention;
FIG. 8 is a schematic view of a retaining ring set according to the present invention;
FIG. 9 is a schematic structural diagram according to a second embodiment of the present invention;
in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. fixing the loop; 101. a torsion resistant bar; 102. concave holes; 2. a movable ring sleeve; 201. inclining the chamfer surface; 3. a hexagonal fixing ring; 301. a locking pin; 302. an axial rotation prevention pin; 4. a pin shaft; 401. a bolt; 5. a push-up member; 501. a handle; 6. a strip-shaped fixing plate; 7. a square fixed disc; 8. a square movable disc; 801. a guide pin; 9. a tensioning pin; 10. an eccentric shaft sleeve; 1001. a connecting pin; 1002. a push plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 9, a first embodiment of the present invention:
a clamping device for a nut and bolt during tightening, comprising: a fixed ring sleeve 1 and a movable ring sleeve 2;
two positioning lug blocks with through holes are symmetrically welded at the upper end and the lower end of the fixed ring sleeve 1, wherein a torsion resistant bar 101 is vertically welded at the top end of the upper positioning lug block in a supporting manner, and a circular through groove is formed in the center of a back plate of the fixed ring sleeve 1; the back plate of the fixed ring sleeve 1 is provided with concave holes 102 in up-down symmetry, and the two concave holes 102 are positioned at the periphery of the circumference of the circular through groove at the back of the fixed ring sleeve 1;
the upper end and the lower end of the movable ring sleeve 2 are also symmetrically welded with two positioning lug blocks with through holes, a hexagonal fixing ring 3 is clamped between the movable ring sleeve 2 and the fixed ring sleeve 1 in a closed manner, and a nut on a bolt penetrate through a circular through groove on the back plate of the fixed ring sleeve 1 and are in inserted fit with the hexagonal fixing ring 3; the movable ring sleeve 2 comprises an inclined chamfer surface 201, and the inner wall of the circumference of the opening position of the movable ring sleeve 2 is provided with the inclined chamfer surface 201 with an annular structure; two axial anti-rotation pins 302 are inserted on the annular end surface of the hexagonal fixing ring 3 close to the fixing ring sleeve 1 in a vertically symmetrical sliding manner, and the head ends of the two axial anti-rotation pins 302 are in a conical structure; two locking pins 301 which are obliquely supported are symmetrically inserted through the outer wall of the circumference of the hexagonal fixing ring 3, and the tail ends of the two locking pins 301 are in an oblique-section structure;
two pin shafts 4 are symmetrically arranged on the upper and lower positioning lug blocks of the movable ring sleeve 2 and the fixed ring sleeve 1 in a penetrating way, the tail end sections of the two pin shafts 4 are both provided with threads, the tail end sections of the two pin shafts 4 are in threaded connection with a strip-shaped fixing plate 6, the positions of the two pin shafts 4 close to the movable ring sleeve 2 are rotatably connected with a pushing part 5, and a gap exists between the strip-shaped fixing plate 6 and a U-shaped pushing frame of the pushing part 5, so that the pushing part 5 can be ensured to perform normal twisting action; the pushing member 5 is integrally formed by welding a U-shaped pushing frame and a handle 501 welded to the middle position of the U-shaped pushing frame together, wherein the U-shaped pushing frame swings and is abutted against and contacted with the back plate of the movable ring sleeve 2; the upper horizontal top plate and the lower horizontal top plate of the U-shaped pushing frame are both provided with a jack in a penetrating way, and the two jacks are in rotating insertion fit with the tail end sections of the two bolts 401;
as shown in fig. 2, two pins 4 are provided with a pin 401 at positions close to the movable ring sleeve 2, and a limit pin is inserted through the tail end sections of the two pins 401, so that the limit pin can prevent the pin 401 from separating from the pin 4 to cause the separation and pushing function failure of the pushing component 5 and the pin 4.
As shown in fig. 3, when the movable ring sleeve 2 and the fixed ring sleeve 1 slide, close and clamp tightly, the head end sections of the two axial rotation-preventing pins 302 are correspondingly inserted and matched with the two concave holes 102, and the hexagonal fixing ring 3 and the fixed ring sleeve 1 can be inserted and fixed together by the insertion and matching of the axial rotation-preventing pins 302 and the two concave holes 102, so that the nut or the bolt inside the hexagonal fixing ring 3 is kept static, and the nut or the bolt is prevented from rotating together with the rotation of the wrench, which causes the operation of loosening and tightening of the screwing.
As shown in fig. 4, when the movable ring sleeve 2 and the fixed ring sleeve 1 slide, close and clamp, the inclined section of the tail ends of the two locking pins 301 are abutted against and contacted with the inclined chamfer surface 201, and the inclined plane of the inclined chamfer surface 201 pushes and fixes the nuts of the nuts or bolts in the hexagonal fixing ring 3 by the two locking pins 301, so as to avoid the nuts or bolts from falling off from the locking clamp during screwing and loosening operations, which results in time waste due to repeated operations, and the movable ring sleeve 2 can unload force and the two locking pins 301 can be loosened by only returning the handle 501 and the u-shaped pushing frame, so that the locking clamp and the bolts or nuts can be unloaded quickly and conveniently after screwing is completed, and the locking clamp and the nuts or bolts can be conveniently separated.
Referring to fig. 9, the second embodiment of the present invention:
a clamping device of screw nut and bolt in the tightening process, still includes: a square fixed disc 7 and a square movable disc 8;
six fixing ring sleeves 1 are symmetrically arranged on the square fixing disc 7 from left to right; six movable ring sleeves 2 are symmetrically arranged on the square movable disc 8, six guide pins 801 are symmetrically welded at idle positions among the six movable disc 8, and the six guide pins 801 are used for sliding butt joint and closing of the square movable disc 8 and the square fixed disc 7; the utility model discloses a locking clamp, including tensioning pin 9, wherein two places cylindrical bases, square expansion disc 8 and square fixed disk 7 that butt joint closure is in the same place are passed to the longitudinal symmetry, and it is connected with an eccentric sleeve 10 to rotate between the two places hangers, it has a connecting pin 1001 to run through the cartridge in the central shaft hole of two places hangers and eccentric sleeve 10, it has a rectangle push pedal 1002 to support the welding on eccentric sleeve 10's the circumference outer wall, square fixed disk 7 and square expansion disc 8 butt joint closure have constituteed batch locking anchor clamps, batch locking anchor clamps can carry out the elasticity operation to a plurality of nuts or bolt simultaneously, be applicable to the batch elasticity operation of screw.
The working principle of the first embodiment is as follows: the nut or the nut on the fixed bolt is convenient to thread and sleeve the bolt and turn the nut or thread and turn the bolt on the nut, and when the nut or the nut is used, the hexagon nut or the hexagon nut of the bolt is put into the hexagon fixing ring 3 through the round through groove on the back plate of the fixing ring sleeve 1; the handle 501 is twisted towards the bar-shaped fixing plate 6, and when the handle 501 is twisted, the U-shaped pushing frame is driven to push the movable ring sleeve 2, so that the movable ring sleeve 2 and the fixed ring sleeve 1 are closed in a sliding manner, and the hexagonal fixing ring 3 is clamped tightly; when the movable ring sleeve 2 slides and clamps the hexagonal fixing ring 3, the inclined chamfer surface 201 can carry out inward sliding pushing on the two locking pins 301 through the principle of inclined surface guiding, and meanwhile, the two axial anti-rotation pins 302 are spliced and combined with the two concave holes 102; the two locking pins 301 slide inwards to push and fix the hexagon nuts or the hexagon nuts of the bolts in the hexagon fixing ring 3; the torsion resistant bar 101 is close to the reverse stress point of the part, the bolt or the nut is screwed by a spanner, and finally the handle 501 is rotated to the initial position, so that the movable ring sleeve 2 is relieved, the two locking pins 301 are loosened, and the whole locking device is taken down.
Working principle of the second embodiment: during the use, put into six interior hexagonal solid fixed rings 3 in proper order with the nut earlier, the rotation of rectangle push pedal 1002 is 90 degrees, rectangle push pedal 1002 linkage eccentric shaft sleeve 10 pushes away square activity dish 8 and square fixed disk 7 and closes, radial fitting pin 301 in interior hexagonal solid fixed ring 3 presss from both sides the nut in interior hexagonal solid fixed ring 3, axial fitting pin 302 combines with shrinkage pool 102 simultaneously, to going into on the part hole site that needs locking with locking anchor clamps in batches in succession, penetrate the bolt in proper order, tighten the bolt with the tightening tool, pull back the normal position with rectangle push pedal 1002 at last, the power between nut and anchor clamps is released, take off the anchor clamps.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a screw up clamping device of in-process nut and bolt which characterized in that: the nut and bolt clamping device comprises a fixed ring sleeve (1), a movable ring sleeve (2), a square fixed disc (7) and a square movable disc (8);
two positioning ear blocks with through holes are symmetrically welded at the upper end and the lower end of the fixed ring sleeve (1), wherein a torsion resistant bar (101) is vertically welded at the top end of the upper positioning ear block, and a circular through groove is formed in the center of the back plate of the fixed ring sleeve (1);
the upper end and the lower end of the movable ring sleeve (2) are also symmetrically welded with two positioning lug blocks with through holes, a hexagonal fixing ring (3) is clamped between the movable ring sleeve (2) and the fixed ring sleeve (1) in a closed manner, and a nut on a bolt penetrate through a circular through groove on a back plate of the fixed ring sleeve (1) to be in inserted fit with the hexagonal fixing ring (3);
two pin shafts (4) are symmetrically arranged on the upper and lower positioning lug blocks of the movable ring sleeve (2) and the fixed ring sleeve (1) in a penetrating manner, the tail end sections of the two pin shafts (4) are both provided with threads, the tail end sections of the two pin shafts (4) are in threaded connection with a strip-shaped fixed plate (6), and the positions, close to the movable ring sleeve (2), of the two pin shafts (4) are rotatably connected with a pushing component (5);
six fixing ring sleeves (1) are symmetrically arranged on the left and right of the square fixing disc (7);
six movable ring sleeves (2) are symmetrically arranged on the square movable disc (8), six guide pins (801) are symmetrically welded at the idle position between the six movable discs (8), and the six guide pins (801) are used for the sliding butt joint and closing of the square movable disc (8) and the square fixed disc (7);
the tensioning pin (9) is provided with two positions, the tensioning pin (9) is integrally composed of a cylindrical seat and hangers welded on the cylindrical seat, the two cylindrical seats are vertically symmetrical and penetrate through a square movable disc (8) and a square fixed disc (7) which are closed together in a butt joint mode, an eccentric shaft sleeve (10) is connected between the two hangers in a rotating mode, a connecting pin (1001) penetrates through and is inserted into a central shaft hole of the two hangers and the eccentric shaft sleeve (10), and a rectangular push plate (1002) is welded on the outer wall of the circumference of the eccentric shaft sleeve (10) in a supporting mode.
2. A clamping device for nuts and bolts during tightening according to claim 1, wherein: the back plate of the fixed ring sleeve (1) is provided with concave holes (102) in an up-down symmetrical mode, and the two concave holes (102) are located on the periphery of the circumference of the circular through groove in the back of the fixed ring sleeve (1).
3. A clamping device for nuts and bolts during tightening according to claim 2, wherein: the movable ring sleeve (2) comprises an inclined chamfer surface (201), and the inner wall of the circumference of the opening position of the movable ring sleeve (2) is provided with the inclined chamfer surface (201) with an annular structure.
4. A clamping device for nuts and bolts during tightening according to claim 3, wherein: the hexagonal fixing ring (3) is close to the annular end face of the fixing ring sleeve (1) side, two axial anti-rotation pins (302) are inserted in the annular end face in a vertically symmetrical sliding mode, and the head ends of the two axial anti-rotation pins (302) are of conical structures.
5. The clamping device for the nut and the bolt during the tightening process according to claim 4, wherein: the locking pins (301) which are obliquely supported at two positions are symmetrically inserted through the outer wall of the circumference of the hexagonal fixing ring (3), and the tail ends of the locking pins (301) at two positions are in an oblique-section structure.
6. A clamping device for nuts and bolts during tightening according to claim 1, wherein: the pushing component (5) is integrally formed by welding a U-shaped pushing frame and a handle (501) welded at the middle position of the U-shaped pushing frame together, wherein the U-shaped pushing frame swings and is abutted and contacted with the back plate of the movable ring sleeve (2).
7. The clamping device for the nut and the bolt during the tightening process according to claim 6, wherein: two pins (4) are provided with a bolt (401) in a penetrating way at the positions close to the movable ring sleeve (2), and the tail end sections of the two bolts (401) are provided with a limit shaft pin in a penetrating and inserting way; the upper horizontal top plate and the lower horizontal top plate of the U-shaped pushing frame are both provided with a jack in a penetrating way, and the two jacks are in rotating, inserting and matching with the tail end sections of the two bolts (401).
8. The clamping device for the nut and the bolt during the tightening process according to claim 4, wherein: when the movable ring sleeve (2) and the fixed ring sleeve (1) slide, close and clamp tightly, the head end sections of the two axial anti-rotation pins (302) are correspondingly matched with the two concave holes (102) in an inserting way.
9. The clamping device for the nut and the bolt during the tightening process according to claim 5, wherein: when the movable ring sleeve (2) and the fixed ring sleeve (1) slide, close and clamp, the tail end oblique sections of the two locking pins (301) are abutted and contacted with the inclined chamfer surfaces (201) correspondingly.
10. The method for clamping a nut and a bolt during tightening according to claim 1, comprising the steps of:
(1) placing a hexagon nut or a hexagon nut of a bolt into the hexagon fixing ring (3) through a circular through groove on the back plate of the fixing ring sleeve (1);
(2) the handle (501) is twisted towards the bar-shaped fixing plate (6), and the U-shaped pushing frame is driven to push the movable ring sleeve (2) when the handle (501) is twisted, so that the movable ring sleeve (2) and the fixing ring sleeve (1) are closed in a sliding manner and the hexagonal fixing ring (3) is clamped tightly;
(3) when the movable ring sleeve (2) slides to clamp the hexagonal fixing ring (3), the inclined chamfer surface (201) can perform inward sliding pushing on the two locking pins (301) through the inclined surface guide principle, and meanwhile, the two axial anti-rotation pins (302) are spliced and combined with the two concave holes (102);
(4) the two locking pins (301) slide inwards and push the hexagonal nuts of the hexagonal nuts or the bolts to be fixed in the hexagonal fixing rings (3);
(5) and the torsion resistant rod (101) is close to the reverse stress point of the part, the bolt or the nut is screwed by a spanner, and finally the handle (501) is rotated to the initial position, so that the movable ring sleeve (2) is relieved, the two locking pins (301) are loosened, and the whole locking device is taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654860.3A CN114179034B (en) | 2021-12-30 | 2021-12-30 | Clamping device for nuts and bolts in screwing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111654860.3A CN114179034B (en) | 2021-12-30 | 2021-12-30 | Clamping device for nuts and bolts in screwing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114179034A true CN114179034A (en) | 2022-03-15 |
| CN114179034B CN114179034B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111654860.3A Active CN114179034B (en) | 2021-12-30 | 2021-12-30 | Clamping device for nuts and bolts in screwing process |
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| CN212673914U (en) * | 2020-06-18 | 2021-03-09 | 山东普瑞普勒能源科技有限公司 | Plate compression structure of plate heat exchanger |
| CN112776654A (en) * | 2019-11-05 | 2021-05-11 | 广州汽车集团股份有限公司 | Locking mechanism and quick-change mechanism of power battery |
| CN216326285U (en) * | 2021-12-08 | 2022-04-19 | 湖北上翔自动化科技有限公司 | Auxiliary tool for preventing follow-up rotation of multiple bolts or nuts |
| CN216328068U (en) * | 2021-12-06 | 2022-04-19 | 湖北上翔自动化科技有限公司 | Auxiliary tool for preventing following rotation of single bolt tightening nut |
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2021
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| CN216328068U (en) * | 2021-12-06 | 2022-04-19 | 湖北上翔自动化科技有限公司 | Auxiliary tool for preventing following rotation of single bolt tightening nut |
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|---|---|
| CN114179034B (en) | 2024-02-27 |
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