Bolt tightening assembly and quick electric wheel bolt tightening tool

Abstract

The invention discloses a bolt tightening assembly, which relates to the technical field of bolt tightening assemblies, and comprises a plurality of groups of tightening pieces and a rotating piece, limiting grooves are formed in the end faces of the rotating pieces; the limiting grooves are matched with the notches of the tightening pieces; the limiting groove can drive the tightening piece to rotate at the same time. The bolt has the beneficial effects that through the design of each tightening piece and the limiting grooves, the consistency of tightening force between the bolts can be remarkably improved, and the bolt connection strength can be improved. The device allows synchronous tightening operation on a plurality of bolts at the same time, compared with a traditional manual tool or a single driving system, the operation efficiency is greatly improved, and the device is particularly suitable for industrial application scenes where a large number of bolts need to be rapidly fixed. Due to the fact that the whole device is designed in a modularized mode, the connection mode of all the components is simple and reliable, and daily maintenance work becomes relatively easy.

Description

Technical Field

[0001] The invention relates to the technical field of bolt tightening of an electric wheel base, in particular to a bolt tightening assembly and a tool for quickly tightening bolts of an electric wheel. Background Art

[0002] In modern industrial manufacturing, especially during assembly, ensuring the fastening quality of connectors is crucial to ensuring the mechanical properties and safety standards of the product. In some specific application scenarios, such as the installation of the electric wheel base, in order to achieve the best interference fit, it is usually necessary to flame heat the bolt holes and quickly complete the fastening operation before the material cools down. This fast and precise operation requirement poses many challenges to the traditional manual electric wheel bolt fast tightening tooling.

[0003] Currently, this process mainly relies on operators to manually tighten each connection point using a torque wrench. However, in actual operation, the manual method has the following problems: the manual tightening process is time-consuming and difficult to meet the needs of fast tightening in a short period of time. Due to the influence of factors such as the force control, skill level and fatigue level of different operators, the applied torque may fluctuate greatly, which in turn affects the final connection rigidity inconsistency and causes local collapse. Summary of the invention

[0004] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a bolt tightening assembly, which can solve the problem that the manual tightening process is time-consuming and difficult to meet the needs of rapid tightening in a short time, and the torque applied when tightening the bolt may fluctuate greatly, affecting the inconsistency of the final connection rigidity.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a bolt tightening assembly, comprising a plurality of sets of tightening members, and a rotating member slidably connected to each set of the tightening members;

[0007] The rotating member includes a plurality of groups of limiting grooves arranged on its end surface;

[0008] The limiting groove cooperates with each group of the tightening member notches;

[0009] The limiting groove can drive the tightening member to rotate simultaneously.

[0010] As a preferred solution of the bolt tightening assembly of the present invention, the rotating member includes a driving portion and a connecting portion, the connecting portion is arranged coplanar with the driving portion and protrudes from one side of the driving portion.

[0011] As a preferred solution of the bolt tightening assembly of the present invention, the tightening member includes a plate body, a lasso end arranged at one end of the plate body, and a connecting rod arranged at the other end of the plate body.

[0012] As a preferred solution of the bolt tightening assembly of the present invention, wherein: the driving part is a semicircular ring-shaped plate, and the limiting grooves are arranged at equal intervals on its end surface;

[0013] The center angle a between adjacent limiting grooves is consistent with the center angle b between the bolts on the flange.

[0014] As a preferred solution of the electric wheel bolt quick tightening tool of the bolt tightening assembly of the present invention, wherein: the connecting rod is slidably limited in the limiting groove.

[0015] The connecting rod is vertically fixedly connected to the edge of the plate body;

[0016] Furthermore, the length of the limiting groove is greater than the deflection displacement distance of the connecting rod when it rotates.

[0017] As a preferred solution of the electric wheel bolt quick tightening tool of the bolt tightening assembly of the present invention, the lasso end is a ratchet sleeve, which can be sleeved on the outside of the bolt and transmit in one direction.

[0018] As a preferred solution of the electric wheel bolt quick tightening tool of the bolt tightening assembly of the present invention, wherein: the connecting part is provided with a U-shaped groove, and the U-shaped groove is the input end.

[0019] Beneficial effects of the present invention: Through the design of each tightening member and the use of the limit groove, the consistency of the tightening force between the bolts can be significantly improved, and the strength of the bolt connection can be improved. The device allows simultaneous tightening operations on multiple bolts, which greatly improves the operating efficiency compared to traditional manual tools or single drive systems. It is particularly suitable for industrial application scenarios that require rapid completion of a large number of bolt fixes. Since the entire device adopts a modular design, the connection method between the various components is simple and reliable, which makes daily maintenance work relatively easy. In addition, according to actual needs, the number or position of the tightening members can be easily adjusted to meet the requirements under different working conditions.

[0020] In order to solve the above technical problems, the present invention also provides the following technical solutions: an electric wheel bolt quick tightening tool, comprising a transmission unit including a first arc-shaped plate, a U-shaped block arranged at one end of the first arc-shaped plate, and a hinge column arranged at the other end of the first arc-shaped block;

[0021] The direction adjustment unit includes a second arc-shaped plate, which is consistent with the first arc-shaped plate in shape; the driving unit includes a straight plate, a clamping block arranged at one end of the straight plate, and a connecting shaft arranged at the other end of the straight plate;

[0022] Electric wheels.

[0023] As a preferred solution of the electric wheel bolt quick tightening tool of the bolt tightening assembly of the present invention, one end of the second arc-shaped plate is provided with a hinge hole, and is hinged to the hinge column.

[0024] As a preferred solution of the electric wheel bolt quick tightening tool of the bolt tightening assembly of the present invention, wherein: the other end of the second arc-shaped plate is provided with a clamping hole, and is fixedly clamped with the clamping block.

[0025] Beneficial effects of the present invention: Through the direction adjustment unit and the drive unit, the device can provide more flexible direction control while maintaining efficient tightening, and is particularly suitable for application scenarios that require high-precision and multi-angle tightening. The modular design is adopted between the various components, which is convenient for disassembly and maintenance. Its connection method is simple and reliable, and it is convenient for replacement or repair. The device is not only suitable for standard bolt tightening operations, but can also be used in complex assembly environments that require special angle and direction control, greatly broadening its application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the bolt tightening assembly of the present invention.

[0028] Figure 2 For the present invention Figure 1 A is an enlarged schematic diagram of the structure.

[0029] Figure 3 It is a schematic diagram of the position change of the rotation limit groove and the connecting rod of the bolt tightening assembly of the present invention.

[0030] Figure 4 It is a schematic diagram of the structure of the tooling for quickly tightening the electric wheel bolts of the present invention.

[0031] Figure 5 It is an exploded schematic diagram of the tooling structure for quickly tightening the electric wheel bolts of the present invention. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0035] Example 1

[0036] Reference Figure 1-2 , which is the first embodiment of the present invention, and provides a bolt tightening assembly, comprising a plurality of sets of tightening members 100, and a rotating member 200 slidably connected to each set of tightening members 100;

[0037] The rotating member 200 includes a plurality of limit grooves M arranged on its end surface;

[0038] The limit groove M cooperates with the notch of each set of tightening members 100;

[0039] The limiting groove M can drive the tightening member 100 to rotate simultaneously.

[0040] It should be noted that this embodiment provides a device for tightening multiple workpieces simultaneously, which is particularly suitable for application scenarios where multiple bolts or similar fasteners need to be tightened synchronously. The device includes multiple groups of tightening members 100 and a rotating member 200 slidably connected to each group of tightening members 100.

[0041] Preferably, the tightening member 100 is usually a clamp, a claw or a specially designed sleeve. Each tightening member 100 has a notch to match the limit groove M on the rotating member 200. The rotating member 200 can rotate around its axis and drive all tightening members 100 to move synchronously through multiple groups of limit grooves M arranged on its end surface. The limit grooves M are located on the end surface of the rotating member 200, and each group of limit grooves M corresponds to a group of tightening members 100. The design of the limit grooves M ensures that when the rotating member 200 rotates, the tightening member 100 can move accurately along the preset path without deviation.

[0042] Preferably, each tightening member 100 forms a sliding connection with the corresponding limiting groove M on the rotating member 200 through its unique notch. Such a connection ensures that when the rotating member 200 starts to rotate, all tightening members 100 can rotate together with the action of the limiting groove M. The rotating member 200 is driven by a power source such as manual. When manually rotated, the rotating member 200 rotates in a predetermined direction. Since the tightening members 100 are tightly combined with the limiting groove M on the rotating member 200 through the notch, they will move synchronously with the rotation of the rotating member 200.

[0043] In summary, the tightening device can not only achieve efficient and consistent bolt tightening effects, but also has good safety and maintainability, and is very suitable for various occasions requiring high-quality assembly.

[0044] Example 2

[0045] Reference Figure 2-3 , which is the second embodiment of the present invention, is different from the first embodiment in that it also includes a rotating member 200 including a driving portion 201 and a connecting portion 202, the connecting portion 202 is arranged on the same plane as the driving portion 201, and is protruded on one side of the driving portion 201.

[0046] Furthermore, the tightening member 100 includes a plate body 101 , a lasso end 102 disposed at one end of the plate body 101 , and a connecting rod 103 disposed at the other end of the plate body 101 .

[0047] Furthermore, the driving part 201 is a semicircular ring-shaped plate, and the limiting grooves M are arranged at equal intervals on its end surface;

[0048] The center angle a between adjacent limiting grooves M is consistent with the center angle b between the bolts Q on the flange.

[0049] Furthermore, the connecting rod 103 is slidably limited in the limiting groove M;

[0050] The connecting rod 103 is vertically fixedly connected to the edge of the plate body 101;

[0051] Furthermore, the length of the limiting groove M is greater than the deflection displacement distance of the connecting rod 103 when it rotates.

[0052] Furthermore, the lasso end 102 is a ratchet sleeve, which can be sleeved on the outside of the bolt Q and transmit in one direction.

[0053] Furthermore, the connecting portion 202 is provided with a U-shaped groove 202 a , and the U-shaped groove 202 a is an input end.

[0054] It should be noted that the device can not only realize the synchronous operation of multiple groups of tightening parts, but also optimize the efficiency and flexibility of the entire system through a specific design. The driving part 201 adopts a semicircular ring design, and the end face thereof is provided with limit slots M at equal intervals. The position arrangement of these limit slots M makes the center angle a between adjacent limit slots M consistent with the center angle b between the bolts Q on the flange, thereby ensuring that when the rotating part 200 rotates, all tightening parts 100 can be accurately aligned with the target bolt. The connecting part 202 is arranged coplanar with the driving part 201 and protrudes from one side of the driving part. A U-shaped groove 202a is provided on the connecting part 202 as an input end to facilitate manual operation by the staff.

[0055] Preferably, the plate body 101 constitutes the basic part of the tightening member. The lasso end 102 is located at one end of the plate body, specifically in the form of a ratchet sleeve, which can be sleeved on the outside of the bolt Q to be tightened and realize a one-way transmission function, so that the bolt will not loosen even under the action of a reverse force. The connecting rod 103 is fixed to the edge of the other end of the plate body, perpendicular to the plate body and matched with the limit groove M. The connecting rod 103 can slide in the limit groove M, but is limited by the groove length, ensuring a certain degree of freedom during the tightening process while also avoiding excessive deviation.

[0056] Preferably, the rotating member 200 is composed of two parts: the driving part 201 is responsible for directly driving the tightening member 100 to rotate; and the connecting part 202 is connected to the external power source through the U-shaped groove 202a thereon, and transmits the torque output by the motor to the entire system. Each tightening member 100 forms a slidable connection with the limit groove M of the rotating member 200 through its connecting rod 103. Such a design allows the tightening member to have a certain displacement space along the limit groove M direction while rotating, which is very useful for adapting to bolts of different sizes or position deviations.

[0057] When the external power source is started and drives the rotating member 200 to rotate through the connecting portion 202, due to the close fit between the limit groove M and the connecting rod 103, all the tightening members 100 will rotate together with the movement of the rotating member 200, and at the same time act on the corresponding bolts Q through the lasso end 102. The lasso end 102 is designed in the form of a ratchet sleeve, which not only simplifies the installation process, but also increases safety - even in the case of a reverse force, the ratchet mechanism can prevent the tightened bolts from retreating.

[0058] Preferably, the driving part 201 and the connecting part 202 are both recommended to be made of high-strength aluminum alloy material to reduce weight while maintaining sufficient rigidity. The plate body 101, the lasso end 102 and the connecting rod 103 in the tightening member 100 should be made of alloy steel that is wear-resistant and has a certain elasticity to ensure long-term reliability. For key components such as the limit groove M and the connecting rod 103, the dimensional accuracy requirements are extremely high, so it is recommended to use a precision CNC machine tool for processing to achieve the required tolerance range.

[0059] When using, initial preparation, such as Figure 3 Step 1 in the figure: First, select a tightening member 100 at the outermost end and put its lasso end 102 on the nut to be tightened. After ensuring that the nut is properly clamped on the bolt Q, slide the connecting rod 103 at the other end of the tightening member 100 into the corresponding limit groove M on the rotating member 200. Repeat the above process until all tightening members 100 have been hooked into their respective limit grooves M. Start rotating, as shown in FIG. Figure 3 Step 2 in the figure: Start the power source and rotate the rotating member 200 in the direction F. As the rotation occurs, the connecting rod 103 of each tightening member 100 gradually moves to the outermost position of the limit groove M. In this process, since the lasso end 102 adopts a ratchet design, it can only transmit torque in one direction, thereby ensuring that the tightened state can be maintained even under the action of a reverse force. Figure 3 Step 3 in the embodiment: Continue to rotate in the direction F until the farthest end of the device is reached. At this point, all the tightening members 100 have completed the initial tightening action. Figure 3 Step 1 in: Next, change the direction of rotation to F', so that the rotating member 200 rotates in the opposite direction to return to the initial position. During this process, due to the one-way transmission characteristics of the lasso end 102, they will not exert additional loosening force on the bolt Q. Repeat the operation until it is fully tightened: Follow the above steps again for multiple cycles, each time further tightening the bolt Q until all bolts reach the required tightening degree. This multiple rounds of tightening method helps to gradually increase the tightening force, ensuring that all bolts have a highly consistent connection rigidity in the end.

[0060] In summary, through the design of each tightening member 100 and the limit groove M, the consistency of the tightening force between the bolts can be significantly improved, and the strength of the bolt connection can be improved. The device allows simultaneous tightening of multiple bolts, which greatly improves the operating efficiency compared to traditional manual tools or single drive systems. It is particularly suitable for industrial application scenarios that require rapid completion of a large number of bolt fixes. Since the entire device adopts a modular design, the connection method between the various components is simple and reliable, which makes daily maintenance work relatively easy. In addition, according to actual needs, the number or position of the tightening members can be easily adjusted to meet the requirements under different working conditions.

[0061] Example 3

[0062] Reference Figure 1 to Figure 5 , which is the third embodiment of the present invention, and which is different from the first two embodiments in that:

[0063] Also included is a bolt tightening assembly electric wheel bolt quick tightening tool, which also includes a U-shaped block 302 at one end, and a hinged column 303 arranged at the other end of the first arc block 301;

[0064] The steering unit 400 includes a second curved plate 401, and the second curved plate 401 has the same shape as the first curved plate 301;

[0065] The driving unit 500 includes a straight plate 501, a clamping block 502 disposed at one end of the straight plate 501, and a connecting shaft 503 disposed at the other end of the straight plate 501;

[0066] Electric wheel 600.

[0067] Furthermore, a hinge hole 401 a is formed at one end of the second arc plate 401 and is hinged to the hinge column 303 .

[0068] Furthermore, a clamping hole 401 b is formed at the other end of the second arc-shaped plate 401 , and is fixedly clamped to the clamping block 502 .

[0069] It should be noted that the present embodiment adds a direction adjustment unit 400 and a drive unit 500 on the original basis, further improving the functionality and flexibility of the bolt tightening assembly. By introducing these new components, the device can not only realize multi-point synchronous tightening, but also more accurately control the tightening direction and force. A U-shaped block 302 is provided at one end of the first arc block 301, and a hinge column 303 is provided at the other end. The second arc plate 401 is consistent in shape with the first arc block 301, and a hinge hole 401a is provided at one end, which is hinged to the hinge column 303; a clamping hole 401b is provided at the other end, which is fixedly clamped with the clamping block 502 of the drive unit 500. The straight plate 501 in the drive unit 500 serves as the main body. The clamping block 502 is provided at one end of the straight plate 501, and is fixedly clamped with the clamping hole 401b of the second arc plate 401. The connecting shaft 503 is provided at the other end of the straight plate 501, which can be connected to an external transmission device. Install the steering unit 400 and the driving unit 500: Fix the U-shaped block 302 of the first arc block 301 in a proper position so that it can support the entire device.

[0070] One end of the second arc plate 401 is hinged to the hinge column 303 of the first arc block 301 through the hinge hole 401 a , allowing the second arc plate 401 to rotate around the hinge column 303 .

[0071] The other end of the second arc-shaped plate 401 is fixedly engaged with the engaging block 502 of the driving unit 500 through the engaging hole 401 b , thereby connecting the driving unit 500 and the direction adjustment unit 400 together.

[0072] The connecting shaft 503 of the driving unit 500 is connected to an external transmission device to form a complete power transmission path.

[0073] In addition, the second arc plate 401 and the first arc block 301 are connected together by a movable hinge, which is convenient for installation and disassembly.

[0074] In summary, through the direction adjustment unit 400 and the drive unit 500, the device can provide more flexible direction control while maintaining efficient tightening, and is particularly suitable for application scenarios that require high-precision and multi-angle tightening. The various components are modularly designed to facilitate disassembly and maintenance. For example, the connection method between the clamping block 502 and the clamping hole 401b is simple and reliable, and is convenient for replacement or maintenance. The device is not only suitable for standard bolt tightening operations, but can also be used in complex assembly environments that require special angle and direction control, greatly broadening its application scenarios.

[0075] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A bolt tightening assembly, characterized in that: include, A plurality of groups of tightening members (100), and a rotating member (200) slidably connected to each group of the tightening members (100); The rotating member (200) comprises a plurality of groups of limiting grooves (M) arranged on its end surface; The limiting groove (M) cooperates with the notch of each group of the tightening members (100); The limiting groove (M) can drive the tightening member (100) to rotate simultaneously.

2. The bolt tightening assembly according to claim 1, characterized in that: The rotating member (200) comprises a driving portion (201) and a connecting portion (202); the connecting portion (202) is arranged coplanar with the driving portion (201) and is protrudingly arranged on one side of the driving portion (201).

3. The bolt tightening assembly according to claim 2, characterized in that: The tightening member (100) comprises a plate body (101), a lasso end (102) arranged at one end of the plate body (101), and a connecting rod (103) arranged at the other end of the plate body (101).

4. The bolt tightening assembly according to claim 3, characterized in that: The driving part (201) is a semicircular ring-shaped plate, and the limiting grooves (M) are arranged at equal intervals on its end surface; The center angle a between adjacent limiting grooves (M) is consistent with the center angle b between the bolts (Q) on the flange.

5. The bolt tightening assembly according to claim 4, characterized in that: The connecting rod (103) is slidably limited in the limiting groove (M); The connecting rod (103) is vertically fixedly connected to the edge of the plate body (101); Furthermore, the length of the limiting groove (M) is greater than the deflection displacement distance of the connecting rod (103) when it rotates.

6. The bolt tightening assembly according to claim 5, characterized in that: The lasso end (102) is a ratchet sleeve, which can be sleeved on the outside of the bolt (Q) and transmits in one direction.

7. The bolt tightening assembly according to claim 6, characterized in that: The connecting portion (202) is provided with a U-shaped groove (202a), and the U-shaped groove (202a) is an input end.

8. A fast tightening tool for electric wheel bolts, characterized by: The invention comprises the bolt tightening assembly according to any one of claims 1 to 7, and further comprises: The transmission unit (300) comprises a first arc-shaped plate (301), a A U-shaped block (302) at one end, and a hinged column (303) arranged at the other end of the first arc-shaped block (301); The direction adjustment unit (400) comprises a second curved plate (401), wherein the second curved plate (401) has the same shape as the first curved plate (301); The driving unit (500) comprises a straight plate (501), a clamping block (502) arranged at one end of the straight plate (501), and a connecting shaft (503) arranged at the other end of the straight plate (501); Electric wheel (600).

9. The electric wheel bolt quick tightening tool as claimed in claim 8, characterized in that: One end of the second arc-shaped plate (401) is provided with a hinge hole (401a) and is hinged to the hinge column (303).

10. The electric wheel bolt quick tightening tool as claimed in claim 9, characterized in that: The other end of the second arc-shaped plate (401) is provided with a clamping hole (401b) which is fixedly clamped to the clamping block (502).

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