CN110307767B - Elastic construction tolerance adjusting device - Google Patents
Elastic construction tolerance adjusting device Download PDFInfo
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- CN110307767B CN110307767B CN201910688810.3A CN201910688810A CN110307767B CN 110307767 B CN110307767 B CN 110307767B CN 201910688810 A CN201910688810 A CN 201910688810A CN 110307767 B CN110307767 B CN 110307767B
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- 238000010276 construction Methods 0.000 title claims abstract description 25
- 239000007779 soft material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 17
- 230000007246 mechanism Effects 0.000 description 12
- 241000120551 Heliconiinae Species 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011900 installation process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention provides an elastic construction tolerance adjusting device, which comprises an upper end cover, a locking gasket and an adjusting nut, wherein the upper end cover is provided with a locking groove; the upper end cover consists of a flange and a first stud, a first inner cavity is arranged in the first stud, and a hexagonal hole baffle is arranged at one end, close to the flange, of the first inner cavity; the adjusting nut comprises an adjusting nut body and an elastic enclasping structure, the adjusting nut body consists of a boss and a second stud, the elastic enclasping structure comprises an enclasping ring and supporting feet, and the enclasping ring is arranged in an inner cavity of the second stud; the second stud of the adjusting nut is inserted into the first inner cavity, and a shaft hole gap is formed between the outer end surface of the second stud and the hexagonal hole baffle plate; the locking gasket is arranged in the shaft hole gap and moves freely in the shaft hole gap. The invention fully utilizes the elasticity of the elastic enclasping structure to realize the tolerance adjustment in the X/Z direction and the tolerance adjustment in the Y direction at one time, has high bearing load and strong practicability while being fast, effective and accurately positioned.
Description
Technical Field
The invention relates to the technical field of tolerance adjusting devices, in particular to an elastic construction tolerance adjusting device.
Background
With the rapid development of the automobile industry, the requirements for assembling parts are higher and higher, and in the assembling process of 3 or more parts, the assembly positioning and the final matching effect cannot meet the requirements due to the accumulation of manufacturing and assembling tolerances. The current solution is: 1. manufacturing tolerances are reduced, but this leads to a dramatic increase in cost, and also the cumulative tolerances cannot be effectively eliminated to achieve positioning and matching expectations; 2. the adjusting nut is adopted, but manual adjustment is adopted in the assembly process, so that the requirement on the experience capability of operators is extremely high, and meanwhile, the working efficiency is greatly reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the elastic construction tolerance adjusting device, the elasticity of the elastic enclasping structure is fully utilized to realize the X/Z direction tolerance adjustment and the Y direction tolerance adjustment at one time, the locking gasket and the adjusting nut are fixed through the bolt, the position locking after the X/Z/Y direction tolerance adjustment is realized, the bolt is locked on one entity thread column, the loosening risk caused by the adjustment of the Y direction tolerance of the conventional thread group is reduced, the bearing load is high while the positioning is fast, effective and accurate, and the practicability is strong.
According to one aspect of the invention, an elastic construction tolerance adjusting device is provided, which comprises an upper end cover (1), a locking gasket (2) and an adjusting stud (3), wherein the upper end cover (1) and the adjusting stud (3) are of hollow cavity structures; the upper end cover (1) consists of a flange edge (13) and a first stud (14), a first inner cavity (12) is arranged in the first stud (14), and a hexagonal hole baffle plate (11) is arranged at one end, close to the flange edge (13), of the first inner cavity (12); the adjusting stud (3) comprises an adjusting nut body and an elastic enclasping structure (31), the adjusting nut body consists of a boss (32) and a second stud (33), the elastic enclasping structure (31) comprises an enclasping ring (311) and supporting legs (312), one ends of the supporting legs (312) are connected with the enclasping ring (311) into a whole, the other ends of the supporting legs are fixed with the end face of the boss (32) to form a radial protruding structure, the enclasping ring (311) is arranged in an inner cavity of the second stud (33), and the adjusting stud (3) is driven to rotate after being subjected to friction torque; a second stud (33) of the adjusting stud (3) is inserted into the first inner cavity (12), and a shaft hole gap (4) is formed between the outer end surface (331) of the second stud (33) and the hexagonal hole baffle plate (11); the locking gasket (2) is arranged in the shaft hole gap (4) and moves freely in the shaft hole gap (4), and the locking gasket (2) is pressed against the outer end face (331) of the adjusting stud (3) after being stressed, so that the position of the adjusting stud (3) is fixed. The radial protruding structure on the end face of the boss (32) can increase the friction force between the adjusting stud (3) and the fixed structure, can effectively prevent the adjusting stud (3) from rotating due to vibration, and further plays a role in preventing loosening. The aperture of the hexagonal hole baffle plate (11) is smaller than the outer diameter of the locking gasket (2) so as to block the locking gasket (2). The aperture of the hexagonal hole baffle plate (11) is larger than the outer diameter of the bolt head of the bolt (5) so that the bolt head can enter the shaft hole gap (4) to be in contact with the locking gasket (2).
Preferably, the holding ring (311) is divided into a petal-shaped skirt holding ring (3111) and an annular skirt holding ring (3112); the support leg (312) is of an L-shaped configuration. The wall thickness of the holding ring (311) is larger than the pitch of the external threads of the second stud (33) so as to ensure enough holding force. The supporting leg (312) is of an L-shaped structure, so that the supporting leg (312) can be tightly attached to the boss (32) and the inner cavity of the second stud (33). According to different bolt load requirements, the elastic enclasping structure (31) can be formed by integrally injection molding one material or can be manufactured by adopting two materials in a split mode. Under the condition of high load of the bolt, the screw thread has high strength requirement and can be made of two materials; if the bolt load pressure is not high, the bolt can be made of a material, when the bolt is made of the material, the L-shaped structure of the pulling claw (312) in the elastic holding structure (31) disappears, and a radial protruding structure is formed on the end face of the boss (32).
Preferably, the edge of the petal-shaped skirt holding ring (3111) is of a petal-shaped skirt structure, and comprises a first holding ring (31111) and a supporting vertical edge (31112), and the supporting vertical edge (31112) is provided with a hollowed-out hole (31113). The supporting vertical edge (31112) is of a hollowed-out structure, so that the edge of the holding ring is of a petal-shaped skirt edge structure; the size of the hollowed hole is matched with the height of the annular skirt edge, so that the holding force on the bolt can be changed, and the requirements of different bolt friction forces can be met; the edge of the petal-shaped skirt edge holding ring (3111) is of a petal-shaped skirt edge structure, the upper edge and the lower edge of the skirt edge are chamfered, so that the introduction of bolts is facilitated, and the height of the supporting vertical edge (31112) can be properly adjusted according to the hardness and elasticity of materials, so that the stress of the bolts with tolerance adjustment in the X/Z direction is improved. When the clack-shaped skirt edge clamping ring (3111) is adopted in the elastic clamping structure (31) to clamp the ring (311), the purpose of clamping the bolt is mainly achieved by means of the elasticity of the integral structure of the first clamping ring (31111), the supporting vertical edge (31112) and the hollowed-out hole (31113).
Preferably, the annular skirt holding ring (3112) has an annular structure and comprises a second holding ring (31121), and the second holding ring (31121) is made of soft material, preferably injection-molded rubber and elastomer material. The annular skirt edge holding ring (3112) is deformed by the petal-shaped skirt edge holding ring (3111), when the height of the vertical support edge is zero and the number of hollowed holes is zero, the design form of the petal-shaped skirt edge can be converted into the design form of the annular skirt edge, a brand new structure is formed, namely the annular skirt edge holding ring (3112), and the annular skirt edge holding ring (3112) can be better suitable for the performance of soft materials. When the annular skirt edge holding ring (3112) is adopted in the elastic holding structure (31) to hold the ring (311), the purpose of holding the bolt is mainly achieved by means of the elasticity of the self material of the second holding ring (31121).
Preferably, the holding ring (311) is arranged in the inner cavity of the second stud (33), and divides the inner cavity of the second stud (33) into a bolt adjusting cavity (35) and a avoiding cavity (36); the diameter A of the bolt adjusting cavity (35) and the diameter B, X/Z direction adjusting range value C of the bolt (5) meet the following conditions: a=b+2c; the diameter D of the avoidance cavity (36) and the wall thickness E, X/Z direction adjusting range value C of the supporting leg (312) in the elastic holding structure (31) meet the following conditions: d > b+2c+2e.
Preferably, the outer wall of a first stud (14) in the upper end cover (1) is provided with a short wing (15) and a long wing (16), and the opening end of the first stud (14) is provided with an internal thread stop groove (17). The short wings (15) and the long wings (16) are in multi-petal conical radial design, preferably odd-petal number design, so that the upper end cover (1) automatically finds the center point of the assembly position in the installation process, and the center positioning and pre-tightening functions cannot be influenced when any wing is damaged.
Preferably, a gap is arranged between the bottom end surface of the flange edge (13) and the top surface of the long wing (16), and the bottom end surface of the flange edge (13) is leveled with the top surface of the short wing (15) or is provided with a small gap. The gap between the bottom end surface of the flange edge (13) and the long wing (16) ensures that the clamped structure has enough clamping force, and ensures that the upper end cover (1) is in a fixed state and cannot rotate when in work. The short wings (15) are shorter, have enough intensity and elasticity, can ensure under the outward elasticity and the downward pressure that produces that end cover (1) is by central location to can return to central point after the atress warp, and can strengthen the clamping force of long wings (16), better restriction upper end cover (1) is not rotated. Of course, the anti-rotation design of the structure, such as slotting and the like, can be made on accessories (such as a handle seat positioning hole) assembled with the tolerance automatic adjusting device, so as to strengthen the anti-rotation effect.
Preferably, an external thread stop groove (34) which is matched with the internal thread stop groove (17) for limiting is arranged at a position, close to the boss (32), of the second stud (33) in the adjusting stud (3), and the boss (32) is of a polygonal structure. The external thread stop groove (34) and the internal thread stop groove (17) cooperate to limit the screwing distance of the upper end cover (1), and the screwing and unscrewing torque force of the upper end cover (1) is smaller. The boss (32) is of a polygonal structure, so that the tool can be conveniently clamped in the installation process.
Preferably, an external thread is arranged on the outer wall of the second stud (33) in the adjusting stud (3), an internal thread is arranged on the inner wall of the first stud (14) in the upper end cover (1), and the adjusting stud (3) is driven by friction torque force of the holding ring (311) to rotate in the first inner cavity (12) of the upper end cover (1).
Preferably, the locking gasket (2) is provided with an inner hole (21), both end surfaces of the locking gasket (2) are provided with radial convex lines (22) or annular convex lines, or the edges of both end surfaces of the locking gasket (2) are provided with convex points; the radial ribs (22) are sun radial ribs with the center of the inner hole (21) as an origin. The radial ribs (22) act as locking fixtures. When radial convex lines are arranged on the two end faces of the locking gasket (2), the convex lines can be prevented from being reversely placed when the locking gasket (2) is installed in the first inner cavity (12), so that a double-sided error-proofing design is realized.
When the tolerance automatic adjusting device is assembled, the upper end cover (1), the locking gasket (2) and the adjusting stud (3) are assembled when the tolerance automatic adjusting device leaves a factory, and the first stud (14) of the upper end cover (1) is locked in the external thread stop groove (34) of the adjusting stud (3); the bolt (5) passes through the mounting hole of the fixed mechanism (6), the long wing (16) of the upper end cover (1) is buckled in the mounting hole, the bottom surface of the fixed mechanism (6) is propped up, the fixed mechanism (6) is clamped with the upper end cover (1), the upper end cover (1) is limited to rotate, meanwhile, the short wing (15) of the upper end cover (1) is embedded and clamped in the mounting hole of the fixed mechanism (6) and bounces off, the short wing (15) is shorter, the elasticity is larger, the upper end cover (1) is positioned in the center of the mounting hole of the fixed mechanism (6), and the external elastic force can better limit the rotation of the upper end cover (1).
The working principle is as follows: a clamping ring (311) in the elastic clamping structure (31) clamps the bolt (5), and friction torque force of the bolt (5) drives the adjusting stud (3) to rotate, so that tolerance adjustment of the height in the Y direction, namely the axial direction, is realized; after the bolt (5) finds the position, the clamping ring (311) in the elastic clamping structure (31) is deformed under force and moves to the position determined by the bolt (5), the bolt (5) continuously advances, the locking gasket (2) and the adjusting stud (3) are locked and fixed, tolerance adjustment and positioning in the X and Z directions are realized, the locking gasket (2) is provided with radial ribs (22) (or annular ribs or protruding points), and the radial ribs (22) are tightly pressed against the outer end face (331) of the adjusting stud (3) after locking, so that the adjusting device is prevented from loosening.
Compared with the prior art, the invention has the following beneficial effects:
(1) The elastic construction tolerance adjusting device fully utilizes the elasticity of the elastic enclasping structure to realize the tolerance adjustment in the X/Z direction and the tolerance adjustment in the Y direction at one time, and fixes the locking gasket and the adjusting nut through the bolt to realize the position locking after the tolerance adjustment in the X/Z/Y direction;
(2) According to the elastic construction tolerance adjusting device, the clack-shaped skirt edge clack ring or the annular skirt edge clack ring can be adopted in the elastic clack structure, the clack-shaped skirt edge clack ring mainly achieves the purpose of clack bolts by means of the elasticity of the integral structure of the first clack ring, the supporting vertical edge and the hollowed-out hole, and the annular skirt edge clack ring mainly achieves the purpose of clack bolts by means of the elasticity of the material of the second clack ring, so that the device is flexible and changeable, simple in structure, ingenious in design and remarkable in effect;
(3) According to the elastic construction tolerance adjusting device, the long wings and the short wings are arranged on the upper end cover, the long wings are buckled in the mounting holes of the fixed mechanism to prop against the bottom surface of the fixed mechanism, so that the upper end cover is ensured to be in a fixed state and not to rotate when in work; the short wings are shorter, have enough strength and elasticity, ensure that the end cover can be positioned at the center under the external elasticity and the downward pressure generated, can return to the center position after being deformed under the stress, can strengthen the clamping force of the long wings, and better limit the upper end cover from rotating;
(4) According to the elastic construction tolerance adjusting device, the fastening bolt is fixed on the locking gasket and the solid threaded column of the adjusting nut, so that the loosening risk caused by the adjustment of the Y-direction tolerance of the conventional thread group is reduced, the device can be positioned rapidly, effectively and accurately, can bear higher load, and reduces the loosening risk of the bolt;
(5) The elastic construction tolerance adjusting device can be made smaller according to specific requirements, has wider application range, can realize the purposes of quick assembly and quick adjustment in complex limited installation environments of doors such as automobiles, aviation, household appliances, ships, doors and the like, has high positioning strength and accurate positioning, greatly improves the working efficiency, and reduces the production cost and the quality cost;
(6) The elastic construction tolerance adjusting device is easy to process and assemble, low in cost and suitable for large-scale popularization.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a spring construction tolerance adjustment device;
FIG. 2 is a schematic structural view of an upper end cap;
FIG. 3 is a schematic view of the structure of the locking washer;
FIG. 4 is a schematic view of the structure of the adjusting nut;
FIG. 5 is a second schematic structural view of the adjusting nut;
FIG. 6 is a schematic top view of the construction of a petal skirt clamp ring;
FIG. 7 is a perspective view of the construction of a petal skirt clamp ring;
FIG. 8 is a schematic cross-sectional view of the construction of a petal skirt clamp ring;
FIG. 9 is a schematic top view of the structure of the annular skirt clamp ring;
FIG. 10 is a perspective view of the structure of the annular skirt clamp ring;
FIG. 11 is a schematic cross-sectional view of the structure of the annular skirt clamp ring;
FIG. 12 is a schematic view of an installation of a spring construction tolerance adjustment device;
Fig. 13 is an enlarged schematic view of an installation portion of the elastic construction tolerance adjustment device.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
Examples
The embodiment provides an elastic construction tolerance adjusting device, the structure of which is shown in fig. 1-13 in detail: the novel anti-theft lock comprises an upper end cover 1, a locking gasket 2 and an adjusting nut 3, wherein the upper end cover 1 and the adjusting nut 3 are of hollow cavity structures; the upper end cover 1 consists of a flange edge 13 and a first stud 14, a first inner cavity 12 is arranged in the first stud 14, and a hexagonal hole baffle 11 is arranged at one end, close to the flange edge 13, of the first inner cavity 12; the adjusting nut 3 comprises an adjusting nut body and an elastic holding structure 31, the adjusting nut body is composed of a boss 32 and a second stud 33, the elastic holding structure 31 comprises a holding ring 311 and supporting legs 312, one ends of the supporting legs 312 are connected with the holding ring 311 into a whole, the other ends of the supporting legs are fixed with the end face of the boss 32 to form a radial protruding structure, the holding ring 311 is arranged in an inner cavity of the second stud 33, and the adjusting nut 3 is driven to rotate after being subjected to friction torque; the second stud 33 of the adjusting nut 3 is inserted into the first inner cavity 12, and a shaft hole gap 4 is formed between the outer end face 331 of the second stud 33 and the hexagonal hole baffle 11; the locking gasket 2 is arranged in the shaft hole gap 4 and moves freely in the shaft hole gap 4, and the locking gasket 2 compresses the outer end face 331 of the adjusting nut 3 after being stressed, so that the position of the adjusting nut 3 is fixed. The radial protruding structure on the terminal surface of boss 32 can increase the frictional force between adjusting nut 3 and the fixed knot structure, can prevent effectively that adjusting nut 3 from rotating because of vibrations, and then plays the locking effect. The hexagonal hole baffle 11 has a smaller diameter than the outer diameter of the locking washer 2 to block the locking washer 2. The hexagonal hole baffle 11 has a larger diameter than the outer diameter of the bolt head of the bolt 5 so that the bolt head can enter the shaft hole gap 4 to contact the locking washer 2.
Further, the holding ring 311 is divided into a petal-shaped skirt holding ring 3111 and an annular skirt holding ring 3112; the support legs 312 are L-shaped. The wall thickness of the holding ring 311 is larger than the pitch of the external thread of the second stud 33 to ensure a sufficient holding force. The supporting leg 312 has an L-shaped structure, so that the supporting leg 312 can be closely attached to the boss 32 and the inner cavity of the second stud 33. According to different bolt load requirements, the elastic holding structure 31 can be formed by integrally injection molding one material or can be manufactured by split manufacturing two materials. Under the condition of high load of the bolt, the screw thread has high strength requirement, and can be made of two materials; if the bolt load pressure is not high, the bolt can be made of a material, and when the bolt load pressure is made of a material, the L-shaped structure of the pulling claw 312 in the elastic holding structure 31 disappears, and only a radial protruding structure is formed on the end face of the boss 32.
Further, the edge of the petal-shaped skirt holding ring 3111 is in a petal-shaped skirt structure, and includes a first holding ring 31111 and a supporting vertical edge 31112, and the supporting vertical edge 31112 is provided with a hollowed-out hole 31113. The support vertical edge 31112 is of a hollowed-out structure, so that the edge of the holding ring is of a petal-shaped skirt edge structure; the size of the hollowed hole is matched with the height of the annular skirt edge, so that the holding force on the bolt can be changed, and the requirements of different bolt friction forces can be met; the edge of the clack-shaped skirt holding ring 3111 is in a clack-shaped skirt structure, the upper edge and the lower edge of the skirt are chamfered, so that the introduction of bolts is facilitated, and the height of the supporting vertical edge 31112 can be properly adjusted according to the hardness and elasticity of materials, so that the stress of the bolts with tolerance adjustment in the X/Z direction is improved. When the petal-shaped skirt holding ring 3111 is adopted in the elastic holding structure 31, the purpose of holding the bolt is mainly achieved by means of the elasticity of the integral structure of the first holding ring 31111, the supporting vertical edge 31112 and the hollowed-out hole 31113.
Further, the annular skirt holding ring 3112 has an annular structure, and includes a second holding ring 31121, and the second holding ring 31121 is made of soft material, preferably injection-molded rubber and elastomer material. The annular skirt holding ring 3112 is deformed by the petal-shaped skirt holding ring 3111, when the height of the vertical support edge is zero and the number of hollowed holes is zero, the design form of the petal-shaped skirt can be converted into the design form of the annular skirt, a brand new structure is formed, namely the annular skirt holding ring 3112, and the annular skirt holding ring 3112 can be better suitable for the performance of soft materials. When the annular skirt holding ring 3112 is adopted in the elastic holding structure 31, the purpose of holding the bolt is mainly achieved by the elasticity of the material of the second holding ring 31121.
Further, the holding ring 311 is disposed in the inner cavity of the second stud 33, and divides the inner cavity of the second stud 33 into a bolt adjusting cavity 35 and a avoiding cavity 36; the diameter A of the bolt adjusting cavity 35 and the diameter B, X/Z direction adjusting range value C of the bolt 5 meet the following conditions: a=b+2c; the diameter D of the avoidance cavity 36 and the wall thickness E, X/Z direction adjusting range value C of the supporting leg 312 in the elastic holding structure 31 meet the following conditions: d > b+2c+2e.
Further, the outer wall of the first stud 14 in the upper end cover 1 is provided with a short wing 15 and a long wing 16, and the open end of the first stud 14 is provided with an internal thread stop groove 17. The short wings 15 and the long wings 16 are of multi-petal conical radial design, preferably of odd-petal number, so that the upper end cover 1 automatically finds the center point of the assembly position in the installation process, and the functions of center positioning and pre-tightening cannot be affected when any wing is damaged.
Further, a gap is formed between the bottom end surface of the flange edge 13 and the top surface of the long wing 16, and the bottom end surface of the flange edge 13 is leveled with the top surface of the short wing 15 or is provided with a small gap. The gap between the bottom end surface of the flange edge 13 and the long wing 16 ensures that the clamped structure has enough clamping force, and ensures that the upper end cover 1 is in a fixed state and cannot rotate when in work. The short wings 15 are shorter, have enough intensity and elasticity, can ensure that the end cover 1 is positioned by the center under the external elasticity and the generated downward pressure, can return to the center position after being deformed under the stress, can strengthen the clamping force of the long wings 16, and better limit the upper end cover 1 not to rotate. Of course, the anti-rotation design of the structure, such as slotting and the like, can also be made on the assembly fittings (such as the positioning holes of the handle seat) of the tolerance automatic adjusting device, so as to strengthen the anti-rotation effect.
Further, an external thread stop groove 34 which is matched with the internal thread stop groove 17 for limiting is arranged at the position, close to the boss 32, of the second stud 33 in the adjusting nut 3, and the boss 32 is of a polygonal structure. The external thread stop groove 34 and the internal thread stop groove 17 cooperate to limit the screwing distance of the upper end cover 1, and make the screwing-in and unscrewing torque force of the upper end cover 1 smaller. The boss 32 is a polygonal structure to facilitate tool clamping during installation.
Further, an external thread is provided on the outer wall of the second stud 33 in the adjusting nut 3, an internal thread is provided on the inner wall of the first stud 14 in the upper end cover 1, and the adjusting stud 3 is driven by the friction torque force of the holding ring 311 to perform thread rotation in the first inner cavity 12 of the upper end cover 1.
Further, an inner hole 21 is formed in the locking gasket 2, radial ribs 22 or annular ribs are formed on two end faces of the locking gasket 2, or protruding points are formed on edges of the two end faces of the locking gasket 2; the radial ridge 22 is a solar radial ridge with the center of the inner hole 21 as the origin. The radial ribs 22 act as a locking fixture. When radial ribs are arranged on the two end faces of the locking gasket 2, the positions of the ribs can be prevented from being reversely placed when the locking gasket 2 is installed in the first inner cavity 12, so that a double-sided error-proofing design is realized.
When the tolerance automatic adjusting device is assembled, the upper end cover 1, the locking gasket 2 and the adjusting nut 3 are assembled when leaving a factory, and the first stud 14 of the upper end cover 1 is locked in the external thread stop groove 34 of the adjusting nut 3; the long wings 16 of the upper end cover 1 are buckled in the mounting holes, the bottom surface of the fixed mechanism 6 is propped up, the fixed mechanism 6 is clamped with the upper end cover 1, the upper end cover 1 is limited to rotate, meanwhile, the short wings 15 of the upper end cover 1 are embedded and clamped in the mounting holes of the fixed mechanism 6 and spring open, the short wings 15 are shorter and have larger elasticity, the upper end cover 1 is positioned in the center of the mounting holes of the fixed mechanism 6, and the external spring force can better limit the rotation of the upper end cover 1. The bolt 5 passes through the mounting hole of the fixed mechanism 6 and is directly locked and mounted.
The working principle is as follows: the clamping ring 311 in the elastic clamping structure 31 clamps the bolt 5, and the friction torque force of the bolt 5 drives the adjusting nut 3 to rotate, so that tolerance adjustment of the height in the Y direction, namely the axial direction, is realized; when the bolt 5 finds out the position, the holding ring 311 in the elastic holding structure 31 deforms under force and moves to the position determined by the bolt 5, the bolt 5 continues to advance, the locking gasket 2 and the adjusting nut 3 are locked and fixed, tolerance adjustment and positioning in the X and Z directions are realized, the locking gasket 2 is provided with radial ribs 22 (or annular ribs or protruding points), and the radial ribs 22 press the outer end face 331 of the adjusting nut 3 after locking, so that the adjusting device is prevented from loosening.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the invention.
Claims (6)
1. The elastic construction tolerance adjusting device is characterized by comprising an upper end cover (1), a locking gasket (2) and an adjusting stud (3), wherein the upper end cover (1) and the adjusting stud (3) are of hollow cavity structures; the upper end cover (1) consists of a flange edge (13) and a first stud (14), a first inner cavity (12) is arranged in the first stud (14), and a hexagonal hole baffle plate (11) is arranged at one end, close to the flange edge (13), of the first inner cavity (12); the adjusting stud (3) comprises an adjusting nut body and an elastic enclasping structure (31), the adjusting nut body consists of a boss (32) and a second stud (33), the elastic enclasping structure (31) comprises an enclasping ring (311) and supporting legs (312), one ends of the supporting legs (312) are connected with the enclasping ring (311) into a whole, the other ends of the supporting legs are fixed with the end face of the boss (32) to form a radial protruding structure, the enclasping ring (311) is arranged in an inner cavity of the second stud (33), and the adjusting stud (3) is driven to rotate after being subjected to friction torque; a second stud (33) of the adjusting stud (3) is inserted into the first inner cavity (12), and a shaft hole gap (4) is formed between the outer end surface (331) of the second stud (33) and the hexagonal hole baffle plate (11); the locking gasket (2) is arranged in the shaft hole gap (4) and moves freely in the shaft hole gap (4), the locking gasket (2) compresses the outer end surface (331) of the adjusting stud (3) after being stressed,
Wherein the holding ring (311) is divided into a petal-shaped skirt holding ring (3111) and an annular skirt holding ring (3112); the support leg (312) is of an L-shaped structure,
Wherein the edge of the petal-shaped skirt holding ring (3111) is in a petal-shaped skirt structure, the petal-shaped skirt holding ring comprises a first holding ring (31111) and a supporting vertical edge (31112), the supporting vertical edge (31112) is provided with a hollowed-out hole (31113),
Wherein the annular skirt holding ring (3112) is in an annular structure and comprises a second holding ring (31121), the second holding ring (31121) is made of soft material,
The clamping ring (311) is arranged in the inner cavity of the second stud (33), and divides the inner cavity of the second stud (33) into a bolt adjusting cavity (35) and a avoidance cavity (36); the diameter A of the bolt adjusting cavity (35) and the diameter B, X/Z direction adjusting range value C of the bolt (5) meet the following conditions: a=b+2c; the diameter D of the avoidance cavity (36) and the wall thickness E, X/Z direction adjusting range value C of the supporting leg (312) in the elastic holding structure (31) meet the following conditions: d > b+2c+2e.
2. The elastic construction tolerance adjusting device according to claim 1, wherein the outer wall of the first stud (14) in the upper end cover (1) is provided with a short wing (15) and a long wing (16), and the opening end of the first stud (14) is provided with an internal thread stop groove (17).
3. The elastic construction tolerance adjustment device according to claim 2, characterized in that the bottom end surface of the flange edge (13) is provided with a gap with the top surface of the long wing (16), and the bottom end surface of the flange edge (13) is leveled with the top surface of the short wing (15) or provided with a slight gap.
4. The elastic construction tolerance adjustment device according to claim 2, characterized in that an external thread stop groove (34) which is matched and limited with the internal thread stop groove (17) is arranged at a position, close to the boss (32), of the second stud (33) in the adjusting stud (3), and the boss (32) is of a polygonal structure.
5. The elastic construction tolerance adjustment device according to claim 1, characterized in that an external thread is arranged on the outer wall of the second stud (33) in the adjustment stud (3), an internal thread is arranged on the inner wall of the first stud (14) in the upper end cover (1), and the adjustment stud (3) is driven by friction torque force of the holding ring (311) to perform threaded rotation in the first inner cavity (12) of the upper end cover (1).
6. The elastic construction tolerance adjustment device according to claim 1, characterized in that the locking gasket (2) is provided with an inner hole (21), both end surfaces of the locking gasket (2) are provided with radial ribs (22) or annular ribs, or the edges of both end surfaces of the locking gasket (2) are provided with protruding points; the radial ribs (22) are sun radial ribs with the center of the inner hole (21) as an origin.
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| CN201910688810.3A CN110307767B (en) | 2019-07-29 | 2019-07-29 | Elastic construction tolerance adjusting device |
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| CN201910688810.3A CN110307767B (en) | 2019-07-29 | 2019-07-29 | Elastic construction tolerance adjusting device |
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| CN110307767B true CN110307767B (en) | 2024-04-30 |
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| CN210108194U (en) * | 2019-07-29 | 2020-02-21 | 上海佳慕汽车零部件有限公司 | Elastic structure tolerance adjusting device |
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| US10226825B2 (en) * | 2016-11-20 | 2019-03-12 | Charles Michael Berg | Tool holding apparatus |
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| DE4009752A1 (en) * | 1990-03-27 | 1991-10-02 | Emka Beschlagteile | Adjustable rotary bolt lock - has flanged housing for fixture to door panel and contg. rotatably located operating shaft |
| CN107477071A (en) * | 2017-10-13 | 2017-12-15 | 襄阳五二五泵业有限公司 | A kind of quick locknut |
| CN108386438A (en) * | 2017-10-24 | 2018-08-10 | 伯尔霍夫连接技术有限公司 | tolerance compensating device |
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| CN110307767A (en) | 2019-10-08 |
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Country or region after: China Address after: 201619 rooms 101 and 102, 1st floor, building 8, 100 Dongwei Road, Dongjing Town, Songjiang District, Shanghai Applicant after: Shanghai Jiamu Auto Parts Co.,Ltd. Address before: 201619 rooms 101 and 102, 1st floor, building 8, 100 Dongwei Road, Dongjing Town, Songjiang District, Shanghai Applicant before: Shanghai Jiamu Automobile Parts Co.,Ltd. Country or region before: China |
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