CN115962195A - Tolerance adjuster and fastening method capable of compensating for large dimensional tolerances - Google Patents

Abstract

The invention discloses a tolerance adjuster capable of compensating large size tolerances and a fastening method, which is characterized in that it includes a tolerance adjuster (3), and the tolerance adjuster (3) includes a screw sleeve (34), a screw sleeve ( 34) Connect the screw (32) in the middle, the screw (32) is connected with the nut assembly (31), a bracket (33) is provided between the screw (32) and the nut assembly (31), and a limit block is provided beside the screw (32) (35). The tolerance adjuster of this patent not only effectively solves the problem of uneven gaps or large step differences in the installation of hidden handles and similar installation methods, which even make it impossible to install. Moreover, the structure is simpler, and the supporting installation panel also simplifies the structure. Only installation holes need to be reserved for the installation panel, which reduces the production cost of the whole set of components. The tolerance adjuster can be supplied assembled with the base part or separately.

Description

Tolerance adjuster and fastening method capable of compensating for large dimensional tolerances

technical field

The invention relates to the technical field of installation and fastening of auto parts, in particular to a tolerance adjuster and a fastening method capable of compensating large size tolerances.

Background technique

When installing auto parts, there will be three axial deviations in the installation size and position of the parts. In order to adjust the installation deviation of the parts, a tolerance adjuster is usually used. Chinese patent 202010948234 .4 discloses a fastening device with tolerance compensation function and its fastening method. The specific structure is shown in Figure 1. The fastening device with tolerance compensation function includes: a locking bolt, which has a Cooperate with the screw head part of the driving tool, the threaded part used to connect the various parts, and the abutment part used for limiting and located between the screw head part and the threaded part; the accommodation groove is arranged on the first member On the stop platform, which is arranged on the second member, and the stop platform is provided with a threaded hole matching the threaded part on the locking bolt; the tolerance compensation element is provided with a screw hole for the locking bolt and the tolerance compensating element can abut against the stop table; wherein, the tolerance compensating element is installed in the accommodating groove, and the tolerance compensating element is opposite to the The accommodating groove can perform Y-direction rotational movement and Y-direction translation movement; the locking bolt is installed in the tolerance compensation element and is threadedly connected with the threaded hole, and the locking bolt is relative to the tolerance compensation The element is capable of rotational movement in the Y direction, translational movement in the X direction and translational movement in the Z direction.

In the fastening device, when the first part and the second part are assembled, the first part is first placed in a corresponding installation position, and then the tolerance eliminating element and the screw are installed. Tolerance elimination components, locking screws and the first part need to be packaged separately and assembled on the customer's vehicle. The customer's assembly process is cumbersome; secondly, the customer needs to weld the matching nut structure on the corresponding installation position on the second part, which increases the difficulty of forming the second part and cost.

Contents of the invention

The object of the present invention is to provide a tolerance adjuster and a fastening method capable of compensating large dimensional tolerances. The invention has large tolerance adjustment range, simple overall structure, reduced production cost, convenient use and high assembly efficiency.

The technical solution of the present invention: a tolerance adjuster capable of compensating for large size tolerances, including a tolerance adjuster, the tolerance adjuster includes a helical sleeve, a screw is connected in the middle of the helical sleeve, the screw is connected to the nut assembly, and between the screw and the nut assembly There is a bracket between them, and a limit block is arranged beside the screw.

In the aforementioned tolerance adjuster capable of compensating large dimensional tolerances, a limiting block is provided at the joint between the screw and the helical sleeve.

In the above-mentioned tolerance adjuster capable of compensating large size tolerances, the limit block is provided with an undercut of the limit block.

In the above-mentioned tolerance adjuster capable of compensating for large size tolerances, a support platform and a limit boss are provided in the middle of the bracket, and an undercut is provided on the side of the bracket.

In the above-mentioned tolerance adjuster capable of compensating large size tolerances, the outer wall of the spiral sleeve is provided with spiral grooves and undercut grooves.

In the above-mentioned tolerance adjuster capable of compensating for large size tolerances, the screw is a lock screw, and the matching nut assembly includes a lock nut, the lock nut is a hex nut or a heat-pressed nut, and the nut assembly is also provided with an undercut and a container slot.

In the aforementioned tolerance adjuster capable of compensating for large dimensional tolerances, the screws are self-tapping screws, and the matched nut components are expansion nuts.

The above-mentioned tolerance adjuster capable of compensating large dimensional tolerances also includes a mounting panel, and mounting holes are arranged on the mounting panel.

The above-mentioned tolerance adjuster capable of compensating large size tolerances includes a mounting base, on which a base accommodation groove is provided, a spiral rib is provided in the base accommodation groove, and a base boss is provided on the side of the base accommodation groove.

A fastening method of a tolerance adjuster capable of compensating large dimensional tolerances, the installation method includes the following steps:

1) Place the installation base equipped with the corresponding number of tolerance adjusters at the installation position;

2) Adjust the position of the tolerance adjuster and align it with the installation hole on the installation panel, adjust the position of the screw and the screw sleeve in the tolerance adjuster, and realize the position adjustment of the installation base in ±X, ±Y, and ±Z directions to ensure that the installation base is in an ideal position. Location;

3) Rotate the screw, and the nut assembly follows the screw rotation and contacts the limit boss of the bracket. At this time, the nut assembly disengages from the support platform of the bracket, and continues to rotate the screw. The nut assembly moves in the Y direction and locks the installation panel.

Beneficial effects: the tolerance adjuster of this patent not only effectively solves the problems of uneven gaps or large step differences in the installation of hidden handles and similar installation methods, or even failure to install them. Moreover, the structure is simpler, and the supporting installation panel also simplifies the structure. Only installation holes need to be reserved for the installation panel, which reduces the production cost of the whole set of components. The tolerance adjuster can be supplied assembled with the base part or separately. The tolerance adjuster is integrated as a whole, which can effectively prevent the phenomenon of missing parts. It can be seen from the technical solution that this patent has the following advantages:

1. The screw and the spiral sleeve adopt a large clearance fit, and the bracket and the handle base adopt a large clearance fit, which effectively ensures the adjustment space of the handle position.

2. A limit block is set next to the screw, and the limit block is provided with an undercut, which is connected with the undercut groove of the spiral sleeve, so as to prevent the screw from falling out due to vibration during transportation or on the product.

3. The nut assembly is molded by plastic-coated nut injection molding or hot-pressed nut hot-press molding, which can effectively ensure the cooperation strength between the screw and the nut assembly, directly match with the mounting hole of the mounting plate, and reduce the difficulty and cost of the production process of the mounting plate.

4. The nut assembly adopts expansion nuts, which are matched with self-tapping screws and directly matched with the mounting holes of the mounting plate, reducing the difficulty and cost of the production process of the mounting plate.

5. The nut assembly is directly connected to the bracket with an undercut. The structure is simple and easy to assemble. At the same time, it can effectively prevent the nut assembly from falling out due to vibration during transportation or on the product.

6. Two accommodating slots are set on the nut assembly to match the two supporting platforms of the bracket. When the screw is locked, the nut assembly rotates and disengages from the support platform of the bracket and continues to move in the Y direction to lock the installation panel. When the screw is reversely rotated, the nut assembly disengages from the installation panel and continues to rotate back to the initial installation position. Effectively ensure that the nut assembly locks the mounting plate, the product is easy to install, and at the same time it is convenient for product disassembly, replacement and repair.

7. There are 2 limit bosses on the bracket, which match with the 2 undercuts of the nut assembly, and effectively control the rotation of the nut assembly within a certain angle range (that is, the initial installation position-locking installation plate position).

8. The spiral sleeve of the tolerance adjuster is provided with a large-pitch spiral groove, which matches the spiral rib on the accommodation hole of the installation base, so as to facilitate the relative position adjustment and locking of the spiral groove.

9. There are 2 undercuts on the bracket, which are matched with the bosses of the mounting base, and the large gap fits, which can effectively assemble the tolerance adjuster on the base, and at the same time ensure the position adjustment space of the tolerance adjuster.

Description of drawings

Accompanying drawing 1 is the structural representation of existing tolerance regulator;

Accompanying drawing 2 is the structure diagram of installation description of the present invention.

Accompanying drawing 3 is the structural representation of the present invention.

Accompanying drawing 4 is the sectional view of accompanying drawing 3.

Accompanying drawing 5 is a schematic diagram of the structure of the spiral sleeve.

Accompanying drawing 6 is a schematic diagram of the structure of the mounting base.

Accompanying drawing 7 is the schematic structural diagram of the nut assembly.

Figure 8 is a schematic diagram of the stent structure.

Accompanying drawing 9 is the structural schematic diagram of the limit block.

Accompanying drawing 10 is the principle schematic diagram of the installation process of the present invention.

Reference signs: 1-installation panel, 2-installation base, 3-tolerance adjuster, 101-installation hole, base accommodation groove 201, spiral rib 202, 203-base boss, 31-nut assembly, 311-locking Nut, 312-undercut, 313-accommodating slot, 32-screw, 33-bracket, 331-undercut, 332-support platform, 333-limiting boss, 34-spiral sleeve, 341-spiral groove, 342- Undercut groove, 35-limit block, 351-limit block undercut.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but not as a basis for limiting the present invention. For structures or processes not specifically indicated, all are conventional prior art in this field.

Example 1.

A tolerance adjuster capable of compensating for large size tolerances, including a tolerance adjuster 3, the tolerance adjuster 3 includes a helical sleeve 34, a screw 32 is connected in the middle of the helical sleeve 34, the screw 32 is connected with a nut assembly 31, and the screw 32 is connected with the nut A bracket 33 is arranged between the components 31 , and a limiting block 35 is arranged beside the screw 32 .

A limiting block 35 is provided at the joint between the screw 32 and the helical sleeve 34 , and a limiting block undercut 351 is provided on the limiting block 35 . The undercut 351 of the limiting block can prevent the nut assembly 31 from falling out due to vibration during transportation or on the product.

The outer wall of the spiral sleeve 34 is provided with a spiral groove 341 and an undercut groove 342 .

A supporting platform 332 and a limiting boss 333 are provided in the middle of the bracket 33 , and an undercut 331 is provided on the side of the bracket 33 .

The limit block 35 is provided with a limit block undercut 351 .

The screw 32 is a locking screw, and the matching nut assembly 31 includes a locking nut 311 which is a hexagonal nut. The nut assembly 31 is also provided with an undercut 312 and an accommodating groove 313 .

The screw 32 is a self-tapping screw, and the matching nut assembly 31 is an expansion nut.

It also includes an installation panel 1 , and an installation hole 101 is provided on the installation panel 1 .

Including the installation base 2, the installation base 2 is provided with a base accommodation groove 201, the base accommodation groove 201 is provided with a spiral rib 202, and the base accommodation groove 201 side is provided with a base boss 203. The spiral groove 341 on the outer wall of the spiral sleeve 34 facilitates relative position adjustment and locking.

A fastening method of a tolerance adjuster capable of compensating large dimensional tolerances, the installation method includes the following steps:

1. Place the installation base 2 equipped with a corresponding number of tolerance adjusters 3 at the installation position;

2. Adjust the position of the tolerance adjuster 3 and align it with the installation hole 101 on the installation panel 1, adjust the position of the screw 32 and the screw sleeve 34 in the tolerance adjuster 3, and realize the position of the installation base 2 in ±X, ±Y, and ±Z directions Adjust to ensure that the installation base 2 is in the ideal position;

3. Rotate the screw 32, the nut assembly 31 follows the rotation of the screw 32 and contacts the limiting boss 333 of the bracket 33, at this time the nut assembly 31 disengages from the support platform 332 of the bracket 33, and continues to rotate the screw 32, the nut assembly 31 moves in the Y direction And lock the installation panel 1.

Example 2.

A tolerance adjuster capable of compensating for large size tolerances, including a tolerance adjuster 3, the tolerance adjuster 3 includes a helical sleeve 34, a screw 32 is connected in the middle of the helical sleeve 34, the screw 32 is connected with a nut assembly 31, and the screw 32 is connected with the nut A bracket 33 is arranged between the components 31 , and a limiting block 35 is arranged beside the screw 32 .

A limiting block 35 is provided at the joint between the screw 32 and the helical sleeve 34 , and a limiting block undercut 351 is provided on the limiting block 35 . The undercut 351 of the limiting block can prevent the nut assembly 31 from falling out due to vibration during transportation or on the product.

The outer wall of the spiral sleeve 34 is provided with a spiral groove 341 and an undercut groove 342 .

A supporting platform 332 and a limiting boss 333 are provided in the middle of the bracket 33 , and an undercut 331 is provided on the side of the bracket 33 .

The limit block 35 is provided with a limit block undercut 351 .

The screw 32 is a locking screw, and the matching nut assembly 31 includes a locking nut 311 , which is a heat-pressed nut.

It also includes an installation panel 1 , and an installation hole 101 is provided on the installation panel 1 .

Including the installation base 2, the installation base 2 is provided with a base accommodation groove 201, the base accommodation groove 201 is provided with a spiral rib 202, and the base accommodation groove 201 side is provided with a base boss 203. The spiral groove 341 on the outer wall of the spiral sleeve 34 facilitates relative position adjustment and locking.

A fastening method of a tolerance adjuster capable of compensating large dimensional tolerances, the installation method includes the following steps:

1. Place the installation base 2 equipped with a corresponding number of tolerance adjusters 3 at the installation position;

2. Adjust the position of the tolerance adjuster 3 and align it with the installation hole 101 on the installation panel 1, adjust the position of the screw 32 and the screw sleeve 34 in the tolerance adjuster 3, and realize the position of the installation base 2 in ±X, ±Y, and ±Z directions Adjust to ensure that the installation base 2 is in the ideal position;

3. Rotate the screw 32, the nut assembly 31 follows the rotation of the screw 32 and contacts the limiting boss 333 of the bracket 33, at this time the nut assembly 31 disengages from the support platform 332 of the bracket 33, and continues to rotate the screw 32, the nut assembly 31 moves in the Y direction And lock the installation panel 1.

Example 3.

A tolerance adjuster capable of compensating for large size tolerances, including a tolerance adjuster 3, the tolerance adjuster 3 includes a helical sleeve 34, a screw 32 is connected in the middle of the helical sleeve 34, the screw 32 is connected with a nut assembly 31, and the screw 32 is connected with the nut A bracket 33 is arranged between the components 31 , and a limiting block 35 is arranged beside the screw 32 .

A limiting block 35 is provided at the joint between the screw 32 and the helical sleeve 34 , and a limiting block undercut 351 is provided on the limiting block 35 . The undercut 351 of the limiting block can prevent the nut assembly 31 from falling out due to vibration during transportation or on the product.

The outer wall of the spiral sleeve 34 is provided with a spiral groove 341 and an undercut groove 342 .

The side of the bracket 33 is provided with an undercut 331 .

The screw 32 is a self-tapping screw, and the matching nut assembly 31 is an expansion nut.

It also includes an installation panel 1 , and an installation hole 101 is provided on the installation panel 1 .

Including the installation base 2, the installation base 2 is provided with a base accommodation groove 201, the base accommodation groove 201 is provided with a spiral rib 202, and the base accommodation groove 201 side is provided with a base boss 203. The spiral groove 341 on the outer wall of the spiral sleeve 34 facilitates relative position adjustment and locking.

A fastening method of a tolerance adjuster capable of compensating large dimensional tolerances, the installation method includes the following steps:

1. Install the corresponding number of nut assemblies 31 into the mounting holes 101 on the mounting panel 1;

2. Place the installation base 2 equipped with a corresponding number of tolerance adjusters 3 at the installation position;

3. Adjust the position of the tolerance adjuster 3 and align it with the nut assembly 31, adjust the position of the screw 32 and the screw sleeve 34 in the tolerance adjuster 3 to realize the position adjustment of the installation base 2 in ±X, ±Y, and ±Z directions, and ensure the installation base 2 in ideal position;

4. Rotate the screw 32 , and the nut assembly 31 expands and deforms as the screw 32 is installed and locks the installation panel 1 .

Claims (10)

1. A tolerance regulator capable of compensating for large tolerances, comprising: the tolerance regulator comprises a tolerance regulator (3), wherein the tolerance regulator (3) comprises a screw sleeve (34), a screw (32) is connected between the screw sleeve (34), the screw (32) is connected with a nut component (31), a support (33) is arranged between the screw (32) and the nut component (31), and a limit block (35) is arranged beside the screw (32).

2. The tolerance regulator of claim 1, wherein the tolerance regulator is capable of compensating for large tolerances: and a limiting block (35) is arranged at the joint of the screw (32) and the screw sleeve (34).

3. A tolerance regulator for compensating for large dimensional tolerances as claimed in claim 3, wherein: and a limiting block back-off (351) is arranged on the limiting block (35).

4. The tolerance regulator of claim 1, wherein the tolerance regulator is capable of compensating for large tolerances: a support table (332) and a limiting boss (333) are arranged in the middle of the support (33), and an inverted buckle (331) is arranged on the side face of the support (33).

5. The tolerance regulator of claim 1, wherein the tolerance regulator is capable of compensating for large tolerances: the outer wall of the spiral sleeve (34) is provided with a spiral groove (341) and an inverted groove (342).

6. The tolerance regulator of claim 1, wherein the tolerance regulator is capable of compensating for large tolerances: the screw (32) is a locking screw, the matched nut assembly (31) comprises a locking nut (311), the locking nut (311) is a hexagon nut or a hot pressing nut, and the nut assembly (31) is further provided with an inverted buckle (312) and an accommodating groove (313).

7. A tolerance adjuster according to claim 6 for compensating for large tolerances, wherein: the screw (32) is a self-tapping screw and the matching nut component (31) is an expansion nut.

8. The tolerance regulator of claim 1, wherein the tolerance regulator is capable of compensating for large tolerances: the novel LED lamp is characterized by further comprising a mounting panel (1), wherein a mounting hole (101) is formed in the mounting panel (1).

9. A tolerance adjuster according to claim 1 for compensating for large tolerances, wherein: the installation base comprises an installation base (2), wherein a base accommodating groove (201) is formed in the installation base (2), a spiral rib (202) is arranged in the base accommodating groove (201), and a base boss (203) is arranged on the side face of the base accommodating groove (201).

10. A method of tightening a tolerance regulator to compensate for large tolerances, comprising: the mounting method comprises the following steps:

1) Placing the mounting base (2) equipped with a corresponding number of tolerance adjusters (3) in a mounting position;

2) Adjusting the position of the tolerance regulator (3) and aligning to the mounting hole (101) on the mounting panel (1), adjusting the positions of a screw (32) and a screw sleeve (34) in the tolerance regulator (3), realizing the position adjustment of the mounting base (2) in the directions of +/-X, +/-Y and +/-Z, and ensuring that the mounting base (2) is in an ideal position;

3) And rotating the screw (32), wherein the nut component (31) rotates along with the screw (32) to be in contact with a limiting boss (333) of the bracket (33), at the moment, the nut component (31) is separated from a supporting table (332) of the bracket (33), the screw (32) continues to rotate, and the nut component (31) moves in the Y direction and locks the mounting panel (1).

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