Tolerance regulator

Abstract

A tolerance regulator comprises a threaded fixing piece, a threaded pipe, a sleeve and a gasket. The thread fixing piece is of a tubular structure and comprises an external thread, an internal thread and a fixing piece hexagonal head. The threaded pipe is of a tubular structure which is connected into the threaded fixing piece in a threaded mode and comprises an adjusting thread and an adjusting screw head. Compared with the prior art, the thread fixing piece is fixedly connected with a sheet metal part, the external threads are arranged to achieve threaded connection, and the position of the sheet metal part can be adjusted on the thread fixing piece. A second sheet metal part is fixed by arranging the threaded pipe, the length of the threaded pipe in the threaded fixing part is adjusted by screwing the adjusting screw head, then tolerance adjustment is achieved, the overall structure is simple, the number of parts is small, production and installation are convenient, and by arranging the abutting ring, the abutting ring is not prone to falling off. The gasket can be prevented from falling off from the threaded fixing piece in the transportation process, and the transportation cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, and particularly relates to a tolerance adjuster. Background Art

[0002] When an automobile is assembled, the precision of the connection between its various components and clamping plates has a very important impact on the quality and safety of the vehicle body. Irregular seams not only directly affect the appearance, but also cause noise, air leakage, water leakage, etc. Moreover, in severe cases, they will even affect the normal use function. There are certain tolerance requirements for the assembly of the vehicle body, and there will be certain errors in the sheet metal parts and components themselves. Therefore, it is necessary to ensure that the tolerance meets the requirements.

[0003] In order to ensure that the installation tolerance meets the technical requirements, in the current market, the axial tolerance adjustment device mainly uses metal parts or a combination of metal and plastic parts, and adjusts the axial tolerance through the friction between bolts and friction units. However, these traditional designs have a series of problems, which restrict their effects in practical applications.

[0004] First of all, the structures of these devices are relatively complex, usually including multiple components, which makes the manufacturing cost relatively high. At the same time, the complex structure also increases the difficulty of assembly, resulting in low production efficiency. Especially in large-scale production, this has become a problem that cannot be ignored. Secondly, due to the complex structure, the traditional device is relatively cumbersome in the adjustment process and requires professional technical personnel to operate. This not only increases the labor cost, but also prolongs the production cycle and affects the overall production efficiency. In addition, the traditional device is prone to detachment during use. Since the adjustment mainly relies on friction, the connection of the device is not firm enough, which may lead to unstable product quality and even potential safety hazards. Finally, the components in these traditional designs are easily affected by friction and wear, reducing the durability and service life of the device. Therefore, seeking a more simplified, stable and durable tolerance adjustment device has become an urgent need in the current technological development. Summary of the Invention

[0005] In view of this, the utility model provides a tolerance adjuster to solve the above technical problems.

[0006] A tolerance adjuster, which includes a threaded fixing member, a threaded tube screwed inside the threaded fixing member, a sleeve disposed inside the threaded tube, and a gasket disposed inside the threaded fixing member. The threaded fixing member is a tubular structure, including an external thread disposed on the outer surface of the threaded fixing member, an internal thread disposed on the inner surface of the threaded fixing member, and a fixing member hexagon head disposed at one end of the threaded fixing member. The external thread is disposed on the outer surface of the threaded fixing member away from the axis. The internal thread is disposed on the inner surface of the threaded fixing member close to the axis. The fixing member hexagon head is disposed on the threaded fixing member and is located at the other end away from the insertion end of the threaded tube. The outer surface is an external hexagon head, and the inner surface is an internal hexagon head. The threaded tube is a tubular structure screwed inside the threaded fixing member, and includes an adjusting thread disposed on the outer surface of the threaded tube, and an adjusting screw head disposed at one end of the threaded tube. The adjusting thread is disposed on the inner surface of the threaded tube close to the axis. The adjusting screw head is disposed on the outer surface of the threaded tube away from the axis and is an external hexagon head.

[0007] Further, the external thread is a right-handed thread, and multiple segments of spaced and equidistant notches are provided in the thread.

[0008] Further, the internal thread is a right-handed thread and is screwed with the threaded tube.

[0009] Further, a ring of abutting rings is provided on the internal hexagon head located inside the fixing member hexagon head, and the inner diameter of the abutting ring is smaller than the outer diameter of the gasket.

[0010] Further, the adjusting thread is a right-handed thread and is consistent with the internal thread.

[0011] Further, the sleeve is a tubular structure clamped inside the threaded tube, and both the inner wall and the outer wall are smooth planes.

[0012] Further, the sleeve and the inner surface of the threaded tube are in interference fit.

[0013] Further, the gasket is disposed inside the threaded fixing member, and is located between the abutting ring and the threaded tube, and is located on the side of the threaded tube away from the adjusting screw head.

[0014] Compared with the prior art, the tolerance adjuster provided by the present utility model is fixedly connected to a sheet metal part by setting the threaded fixing part, and realizes threaded connection by setting the external thread, and the sheet metal part can be adjusted in position on the threaded fixing part. The second sheet metal part is fixed by setting the threaded tube, and the length of the threaded tube in the threaded fixing part is adjusted by screwing the adjusting screw head, thereby realizing tolerance adjustment. The overall structure is simple, with fewer parts, facilitating production and installation, being simpler and more durable, and by setting the abutting ring, it can prevent the gasket from falling out of the threaded fixing part during transportation, and the transportation cost is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is an assembled structural schematic diagram of a tolerance adjuster provided by the present utility model.

[0016] Figure 2 is Figure 1 an exploded schematic diagram of the disassembled structure of the tolerance adjuster.

[0017] Figure 3 is Figure 1 a cross-sectional schematic diagram of the tolerance adjuster at the axis. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein does not limit the protection scope of the present utility model.

[0019] As Figures 1 to 3 shown, it is a structural schematic diagram of a tolerance adjuster provided by the present utility model. The tolerance adjuster includes a threaded fixing part 10, a threaded tube 20 screwed into the threaded fixing part 10, a sleeve 30 arranged in the threaded tube 20, and a gasket 40 arranged in the threaded fixing part 10. It can be imagined that the tolerance adjuster also includes some other functional modules such as fastening bolts, sheet metal parts, etc., which are well-known technologies to those skilled in the art and will not be elaborated herein one by one.

[0020] The threaded fixing part 10 is a tubular structure, including a circle of external threads 11 arranged on the outer surface of the threaded fixing part 10, a circle of internal threads 12 arranged on the inner surface of the threaded fixing part 10, and a fixing part hexagon head 13 arranged at one end of the threaded fixing part 10.

[0021] The external threads 11 are arranged on the outer surface of the threaded fixing part 10 away from the axis, adopt right-handed threads, and are provided with multiple intervals and equidistant notches in the threads to tighten and fix the sheet metal part on the threaded fixing part 10, and have a strong positioning and locking effect.

[0022] The internal thread 12 is provided on the inner surface of the threaded fixing member 10 close to the axis, adopts a right-handed thread, and is screwed with the threaded tube 20.

[0023] The fixing member hexagon head 13 is provided on the threaded fixing member 10 and is located at the other end away from the insertion end of the threaded tube 20. The outer surface is an external hexagon head, and the inner surface is an internal hexagon head, so as to facilitate the use of different tools, such as a wrench, to clamp and rotate the threaded fixing member 10, thereby realizing tightening and loosening of the threaded structure. A ring of abutting rings 131 is also provided on the internal hexagon head of the fixing member hexagon head 13 located inside. The inner diameter of the abutting ring 131 is smaller than the outer diameter of the gasket 40 to prevent the gasket 40 from falling out of the threaded fixing member 10 during transportation.

[0024] The threaded tube 20 is a tubular structure screwed inside the threaded fixing member 10 and includes a ring of adjusting threads 21 provided on the outer surface of the threaded tube 20 and an adjusting screw head 22 provided at one end of the threaded tube 20.

[0025] The adjusting thread 21 is provided on the inner surface of the threaded tube 20 close to the axis, adopts a right-handed thread, and is consistent with the internal thread 12, so that the threaded tube 20 is screwed inside the threaded fixing member 10.

[0026] The adjusting screw head 22 is provided on the outer surface of the threaded tube 20 away from the axis and adopts an external hexagon head, so as to adjust the depth of the threaded tube 20 inside the threaded fixing member 10 by clamping the adjusting screw head 22 and turning the threaded tube 20.

[0027] The sleeve 30 is a tubular structure clamped inside the threaded tube 20. Both the inner wall and the outer wall are smooth planes, and the sleeve 30 and the inner surface of the threaded tube 20 are in an interference fit, so that the sleeve 30 will not move relative to the threaded tube 20.

[0028] In use, the threaded fixing member 10 passes through a first sheet metal part, and the position of the first sheet metal part is fixed by threading, that is, the length of the threaded fixing member 10 passing through the first sheet metal part can be adjusted by turning the hexagon head 13 of the fixing member. The second sheet metal part abuts against the adjusting screw head 22 and remains relatively stationary. A fastening bolt passes through the sleeve 30, and the second sheet metal part is fixed to the adjusting screw head 22 by a fastening nut. When the hexagon head 13 of the fixing member is turned, the position of the first sheet metal part can be adjusted; when the screw head of the adjusting screw head 22 is turned, the length of the threaded tube 20 within the threaded fixing member 10 can be adjusted, so as to realize the adjustment of the distance between the first sheet metal part and the second sheet metal part and perform tolerance adjustment.

[0029] The gasket 40 is arranged within the threaded fixing member 10, between the abutting ring 131 and the threaded tube 20, and on the side of the threaded tube 20 away from the adjusting screw head 22, so as to have a better anti-slip effect when the fastening bolt fixes the second sheet metal part to the adjusting screw head 22.

[0030] Compared with the prior art, the tolerance adjuster provided by the present utility model is fixedly connected to a sheet metal part by arranging the threaded fixing member 10, and realizes threaded connection by arranging the external thread 11, and the sheet metal part can be adjusted in position on the threaded fixing member 10. By arranging the threaded tube 20 to fix the second sheet metal part, and turning the adjusting screw head 22 to adjust the length of the threaded tube 20 within the threaded fixing member 10, the tolerance adjustment is further realized. The overall structure is simple, with fewer parts, facilitating production and installation, being more simple and durable. And by arranging the abutting ring 131, it can prevent the gasket 40 from falling out of the threaded fixing member 10 during transportation, and the transportation cost is relatively low.

[0031] The above are only the preferred embodiments of the present utility model, and are not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements or improvements within the spirit of the present utility model are all covered within the scope of the claims of the present utility model.

Claims

1. A tolerance adjuster, characterized in that: It includes a threaded fastener, a threaded tube screwed into the threaded fastener, a sleeve disposed within the threaded tube, and a gasket disposed within the threaded fastener. The threaded fastener is a tubular structure, including an external thread disposed on the outer surface of the threaded fastener, an internal thread disposed on the inner surface of the threaded fastener, and a fixing hexagon head disposed at one end of the threaded fastener. The external thread is disposed on the outer surface of the threaded fastener away from the axis, the internal thread is disposed on the inner surface of the threaded fastener close to the axis, and the fixing hexagon head is disposed on the threaded fastener and is located at the other end away from the insertion end of the threaded tube. The outer surface is an external hexagon head and the inner surface is an internal hexagon head. The threaded tube is a tubular structure screwed into the interior of the threaded fastener and includes an adjusting thread disposed on the outer surface of the threaded tube and an adjusting screw head disposed at one end of the threaded tube. The adjusting thread is disposed on the inner surface of the threaded tube close to the axis, and the adjusting screw head is disposed on the outer surface of the threaded tube away from the axis, using an external hexagon head.

2. The tolerance adjuster according to claim 1, characterized in that: The external thread is a right-handed thread and has multiple spaced and equidistant notches in the thread.

3. The tolerance adjuster according to claim 1, wherein: The internal thread is a right-handed thread and is screwed with the threaded tube.

4. The tolerance adjuster according to claim 1, characterized in that: There is also a ring of abutting rings disposed on the internal hexagon head on the inner side of the fixing hexagon head, and the inner diameter of the abutting ring is smaller than the outer diameter of the gasket.

5. The tolerance adjuster according to claim 1, characterized in that: The adjusting thread is a right-handed thread and is consistent with the internal thread.

6. The tolerance adjuster according to claim 1, characterized in that: The sleeve is a tubular structure snap-fitted inside the threaded tube, and both the inner wall and the outer wall are smooth planes.

7. The tolerance adjuster according to claim 1, wherein: The sleeve and the inner surface of the threaded tube are in interference fit.

8. The tolerance adjuster according to claim 4, characterized in that: The gasket is disposed within the threaded fastener and is located between the abutting ring and the threaded tube, and is on the side of the threaded tube away from the adjusting screw head.

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