Tightening tool under rear suspension line

Abstract

The utility model relates to the technical field of automobile assembly tools, in particular to a rear suspension line lower tightening tool which comprises a tool base and a tightening mechanism arranged on the tool base, and the tightening mechanism comprises a first tightening assembly and a second tightening assembly. The first tightening assembly comprises a main supporting seat and two supporting columns, wherein the main supporting seat is movably arranged on the tool base and used for fixing the rear axle, and the two supporting columns are located on the two sides of the main supporting seat. The second tightening assembly comprises a plurality of U-shaped supports which are movably arranged on the periphery of the tool base and used for fixing the plate spring, and the U-shaped supports are located on the outer sides of the two supporting columns. According to the rear suspension line lower tightening tool, a plate spring and a rear axle can be directly locked and then installed on a chassis of a vehicle, the installation process is optimized, and the installation efficiency and the installation precision are high; and the device is suitable for rear overhang installation of different vehicles.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile assembly tooling, in particular to a rear suspension line tightening tooling. Background Art

[0002] At present, when installing the rear suspension of a bus, the rear axle and leaf spring are pre-tightened offline with a simple tool. After the rear suspension is fixed to the chassis and the relative positions of the rear axle and leaf spring are adjusted appropriately, the rear axle and leaf spring are tightened. There is a problem of separate operations in the same process, which is inefficient. In addition, the existing simple tool has the problem of poor tool universality. One simple tool can only be used for the assembly of one type of rear suspension. Therefore, there is an urgent need for a rear suspension offline tightening tool to solve the above problems. Utility Model Content

[0003] In order to solve the technical problems that the existing simple tooling is inefficient in assembling the rear axle and leaf spring on the chassis and the tooling is not universal, the utility model provides a rear suspension line tightening tool, which can directly lock the leaf spring and the rear axle and then install them on the chassis of the vehicle, thereby optimizing the installation process, improving the installation efficiency and installation accuracy, and being suitable for the rear suspension installation of different vehicles.

[0004] The utility model provides a rear suspension line tightening tool, comprising a tool base and a tightening mechanism arranged on the tool base, the tightening mechanism comprising a first tightening component and a second tightening component, the first tightening component comprising a main support seat and two support columns movably arranged on the tool base and used for fixing the rear axle, the two support columns are located on both sides of the main support seat; the second tightening component comprises a plurality of U-shaped supports movably arranged around the tool base and used for fixing leaf springs, the plurality of U-shaped supports are located on the outsides of the two support columns.

[0005] Furthermore, each of the U-shaped supports is movably set on the tooling base through an adjustment component, and the adjustment component includes a first fixed plate, a second fixed plate, a third fixed plate and a U-shaped frame, the first fixed plate is movably set at the corner of the tooling base, the second fixed plate is slidably set on the first fixed plate, the third fixed plate is slidably set on the second fixed plate, the U-shaped frame is set on the third fixed plate and the U-shaped support is slidably set on the U-shaped frame.

[0006] Furthermore, base plates are provided at the four corners of the tooling base, a plurality of base plate holes are provided on the base plates, a first fixing hole is provided on the first fixing plate, and a first bolt passes through the first fixing hole and one of the base plate holes and then abuts against the upper surface of the tooling base.

[0007] Furthermore, the first fixing plate is provided with a first slide rail extending along its width direction, and the second fixing plate is provided with a second fixing hole at a position corresponding to the first slide rail, and the second bolt abuts against the first slide rail after passing through the second fixing hole; the first fixing plate is relatively provided with two first limit blocks extending along its width direction, and the second fixing plate is located between the two first limit blocks.

[0008] Furthermore, the second fixed plate is provided with a second slide rail extending along its length direction, and the third fixed plate is provided with a third fixing hole at a position corresponding to the second slide rail, and the third bolt abuts against the second slide rail after passing through the third fixing hole; the second fixed plate is relatively provided with two second limit blocks extending along its length direction, and the third fixed plate is located between the two second limit blocks.

[0009] Furthermore, a screw is provided on the bottom wall of the U-shaped frame, a notch is provided on the side of the U-shaped support, a through hole connected to the notch is provided at the bottom of the U-shaped support, the top of the screw passes through the through hole into the notch, and the screw is fixedly connected to the U-shaped support by at least one nut; a plurality of side holes are provided on the side wall of the U-shaped frame, and a fourth bolt passes through one of the side holes and abuts against the side end of the U-shaped support.

[0010] Furthermore, a first U-shaped pad is arranged in each of the U-shaped supports.

[0011] Furthermore, the bottom of the main support seat is locked to the center position of the upper surface of the tooling base, and the top of the main support seat is provided with an arc-shaped cushion block.

[0012] Furthermore, the bottoms of the two support columns are locked to the upper surface of the tooling base, and the tops of the two support columns are provided with L-shaped support blocks, and the L-shaped support blocks are provided with a first groove in the length direction thereof, and a second U-shaped pad is provided in the first groove.

[0013] Furthermore, the first tightening assembly also includes a side support seat arranged at the side end of the tooling base through a connecting seat and used to fix the rear axle, and an L-shaped support plate is arranged on the top of the side support seat, and the L-shaped support plate is provided with a second groove in its length direction.

[0014] Compared with the prior art, the utility model has the following technical effects:

[0015] 1. The main support seat and two support columns of the first clamping assembly work together to fix the rear axle. Because the U-shaped support is adjustable, the position of the leaf spring on it can be adjusted by adjusting the position of the U-shaped support. After the multiple U-shaped supports of the first clamping assembly work together to fix the leaf spring, the positions of the leaf spring and the rear axle are relatively determined, and the two can be directly locked and fixed. After that, the locked and fixed leaf spring and rear axle can be directly installed on the chassis of the corresponding vehicle to be assembled. The installation process is optimized, the installation efficiency is high, and the installation time is saved by about 15 minutes compared with the previous pre-tightening installation method.

[0016] 2. Because the main support seat, two support columns and multiple U-shaped supports are movable and adjustable, the rear suspension line tightening tooling can be used to assemble leaf springs and rear axles of different sizes, and is suitable for rear suspension installation of different vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a rear suspension line tightening tooling of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the adjustment component of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the U-shaped frame of the utility model;

[0020] The reference numerals in the accompanying drawings are:

[0021] 1. Tooling base; 11. Base plate; 111. Base plate hole; 12. Support legs;

[0022] 2. Main support seat; 21. Arc-shaped pad;

[0023] 3. Support column; 31. L-shaped support block; 32. Second U-shaped pad;

[0024] 4. Side support seat; 41. L-shaped support plate;

[0025] 5. U-shaped support; 51. first U-shaped pad;

[0026] 6. Adjustment components;

[0027] 61, first fixed plate; 611, first slide rail; 612, first limit block;

[0028] 62, second fixing plate; 621, second fixing hole; 622, second slide rail; 623, second limit block;

[0029] 63. third fixing plate; 631. third fixing hole;

[0030] 64, U-shaped frame; 641, screw; 642, nut;

[0031] 7. Connecting seat; 8. First bolt. DETAILED DESCRIPTION

[0032] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figures 1 to 3 As shown, a rear suspension line tightening tool comprises a tool base 1 and a tightening mechanism arranged on the tool base 1, the tightening mechanism comprises a first tightening assembly and a second tightening assembly, the first tightening assembly comprises a main support seat 2 and two support columns 3 movably arranged on the tool base 1 and used to fix the rear axle, the two support columns 3 are located on both sides of the main support seat 2; the second tightening assembly comprises a plurality of U-shaped supports 5 movably arranged around the tool base 1 and used to fix the leaf spring, the plurality of U-shaped supports 5 are located outside the two support columns 3. The main support seat 2, the two support columns 3 and the plurality of U-shaped supports 5 are made of steel.

[0034] The main support base 2 and the two support columns 3 of the first tightening assembly work together to fix the rear axle.

[0035] Because the U-shaped support 5 is movable and adjustable, the position of the leaf spring thereon can be adjusted by adjusting the position of the U-shaped support 5. After the multiple U-shaped supports 5 of the first tightening assembly work together to fix the leaf spring, the positions of the leaf spring and the rear axle are relatively determined (the leaf spring and the rear axle reach a position where the two can be locked), and the two can be directly locked and fixed. After that, the locked and fixed leaf spring and rear axle can be directly installed on the chassis of the corresponding vehicle to be assembled. The method of locking and fixing the leaf spring and the rear axle in this embodiment is to achieve a fixed connection between the two by matching the positioning pins on the leaf spring with the pin holes reserved for the rear axle. Among them, the chassis can be fixed by a frame clamp, and the frame clamp can ensure the installation accuracy of the leaf spring, the rear axle and the chassis.

[0036] The tightening tooling under the rear suspension line in this embodiment can directly lock the leaf spring and the rear axle before installing them on the chassis of the vehicle, thereby optimizing the installation process, improving the installation efficiency, and saving about 15 minutes of installation time compared to the previous pre-tightening installation method.

[0037] Because the main support seat 2, the two support columns 3 and the multiple U-shaped supports 5 are movable and adjustable, the rear suspension line tightening tooling of this embodiment can be used to assemble leaf springs and rear axles of different sizes and is suitable for rear suspension installation of different vehicles.

[0038] As an implementable embodiment, each of the U-shaped supports 5 is movably arranged on the tooling base 1 through an adjustment component 6, and the adjustment component 6 includes a first fixing plate 61, a second fixing plate 62, a third fixing plate 63 and a U-shaped frame 64. The first fixing plate 61 is movably arranged at the corner of the tooling base 1, the second fixing plate 62 is slidably arranged on the first fixing plate 61, the third fixing plate 63 is slidably arranged on the second fixing plate 62, the U-shaped frame 64 is arranged on the third fixing plate 63, and the U-shaped support 5 is slidably arranged on the U-shaped frame 64. The adjustment component 6 is adjusted at the corner of the tooling base 1 through the first fixing plate 61, so as to be suitable for the rear suspension installation of different vehicles. The second fixed plate 62 is slidably arranged on the first fixed plate 61, and finally the U-shaped support 5 is adjusted in the width direction (Y axis) of the vehicle chassis; the third fixed plate 63 is slidably arranged on the second fixed plate 62, and finally the U-shaped support 5 is adjusted in the length direction (X axis) of the vehicle chassis; the U-shaped support 5 is slidably arranged on the U-shaped frame 64, and finally the U-shaped support 5 is adjusted in the height direction (Z axis) of the vehicle chassis. The U-shaped support 5 can finally be adjusted in the three axes of XYZ to determine its relative position with the rear axle, and then the two can be directly locked and fixed on the tooling under the rear suspension line. Among them, the adjustment component 6 can realize the adjustment distance of 500mm of the U-shaped support 5 in the length direction (X axis) and width direction (Y axis) of the vehicle chassis, and the adjustment distance of 300m of the U-shaped support 5 in the height direction (Z axis).

[0039] As an implementation method, the tool base 1 is provided with a base plate 11 at the four corners of the periphery, and the base plate 11 is provided with a plurality of base plate holes 111. The first fixing plate 61 is provided with a first fixing hole, and the first bolt 8 passes through the first fixing hole and one of the base plate holes 111 and then abuts against the upper surface of the tool base 1. The first bolt 8 locks the first fixing plate 61 on the base plate 11 through the first fixing hole and one of the base plate holes 111. When the first bolt 8 is loosened, the first fixing plate 61 can slide on the base plate 11.

[0040] When the positions of the adjustment component 6 and the U-shaped support 5 need to be adjusted, a suitable substrate hole 111 is selected, and the first fixing hole and one of the substrate holes 111 are locked by the first bolt 8. Multiple U-shaped supports 5 are adjusted synchronously, and multiple U-shaped supports 5 can support and fix leaf springs of different sizes, which is suitable for rear suspension installation of different vehicles.

[0041] As an implementation method, the first fixing plate 61 is provided with a first slide rail 611 extending along its width direction, and the width direction of the first fixing plate 61 is also the width direction of the vehicle chassis (Y axis), wherein the first slide rail 611 is provided with two groups, and the second fixing plate 62 is provided with a second fixing hole 621 at a position corresponding to the first slide rail 611, and a second bolt (not shown in the figure) passes through the second fixing hole 621 and abuts against the first slide rail 611; the first fixing plate 61 is provided with two first limit blocks 612 extending along its width direction, and the second fixing plate 62 is located between the two first limit blocks 612. Loosen the second bolt, and the second fixing plate 62 can slide on the first fixing plate 61; tighten the second bolt, and the second fixing plate 62 is fixed on the first fixing plate 61. The two first limit blocks 612 limit the sliding range of the second fixing plate 62 on the first fixing plate 61.

[0042] As an implementation method, the second fixing plate 62 is provided with a second slide rail 622 extending along its length direction, wherein the second slide rail 622 is provided with two groups, the length direction of the second fixing plate 62 is also the length direction of the vehicle chassis (X axis), the third fixing plate 63 is provided with a third fixing hole 631 at a position corresponding to the second slide rail 622, and a third bolt (not shown in the figure) passes through the third fixing hole 631 and abuts against the second slide rail 622; the second fixing plate 62 is provided with two second limit blocks 623 extending along its length direction, and the third fixing plate 63 is located between the two second limit blocks 623. Loosen the third bolt, the third fixing plate 63 can slide on the second fixing plate 62; tighten the third bolt, and the third fixing plate 63 is fixed on the second fixing plate 62. The two second limit blocks 623 limit the sliding range of the third fixing plate 63 on the second fixing plate 62.

[0043] As an implementable embodiment, a screw 641 is provided on the bottom wall of the U-shaped frame 64, a notch is provided on the side of the U-shaped support 5, a through hole connected to the notch is provided at the bottom of the U-shaped support 5, the top of the screw 641 passes through the through hole into the notch, and the screw 641 is fixedly connected to the U-shaped support 5 by at least one nut 642, wherein two nuts 642 are provided. The size of the notch limits the sliding range of the U-shaped support 5; when the top of the screw 641 abuts against the inner wall of the U-shaped support 5 at the notch, the U-shaped support 5 can no longer slide upward. Loosen the nut 642, and the bottom of the U-shaped support 5 can slide on the screw 641 through the through hole; lock the nut 642, and the bottom of the U-shaped support 5 is fixed on the screw 641.

[0044] Furthermore, a plurality of side holes (not shown in the figure) are provided on the side wall of the U-shaped frame 64, and a fourth bolt (not shown in the figure) passes through one of the side holes and abuts against the side end of the U-shaped support 5. Loosen the nut 642 and the fourth bolt, and the bottom of the U-shaped support 5 can slide on the screw rod 641 through the through hole; tighten the nut 642 and the fourth bolt, and the bottom of the U-shaped support 5 is fixed on the screw rod 641. The fourth bolt is provided to cooperate with the side hole to play a role in strengthening the support and stabilizing the U-shaped support 5.

[0045] As an implementable embodiment, a first U-shaped pad 51 is provided in each of the U-shaped supports 5. The groove width of the first U-shaped pad 51 is 1 mm larger than the width of the leaf spring, and its fixing accuracy reaches 0.5 mm. The first U-shaped pad 51 contacts and supports the leaf spring, thereby supporting and fixing the leaf spring in the width direction (Y axis) of the vehicle chassis. The first U-shaped pad 51 prevents the leaf spring from being hard damaged.

[0046] As an implementable embodiment, the bottom of the main support seat 2 is locked to the center position of the upper surface of the tooling base 1. The bottom of the main support seat 2 is locked to the center position of the upper surface of the tooling base 1 by bolts. Its position can be adjusted according to demand, so that it can support and fix rear axles of different sizes, so as to be suitable for the rear suspension installation of different vehicles. The top of the main support seat 2 is provided with an arc-shaped pad 21, and the arc-shaped groove of the arc-shaped pad 21 extends along the width direction of the arc-shaped pad 21, and the width direction of the arc-shaped pad 21 is also the width direction of the vehicle chassis (Y axis). The arc-shaped pad 21 contacts and supports the rear axle, so as to support the rear axle in the length direction (X axis) of the vehicle chassis. The arc-shaped pad 21 avoids hard damage to the leaf spring rear axle.

[0047] As an implementable embodiment, the bottoms of the two support columns 3 are locked to the upper surface of the tooling base 1, and the bottoms of the support columns 3 are locked to the upper surface of the tooling base 1 by bolts. The position of the support columns 3 can be adjusted according to the needs, so that they can support and fix rear axles of different sizes, so as to be suitable for the rear suspension installation of different vehicles. The tops of the two support columns 3 are provided with L-shaped support blocks 31, and the L-shaped support blocks 31 are provided with a first slot in the length direction thereof, and a second U-shaped pad 32 is provided in the first slot. Among them, the structures of the two second U-shaped pads 32 are different, and the structure of the second U-shaped pad 32 is specifically designed according to the end face in contact with the rear axle. The groove width of the second U-shaped pad 32 is 1mm larger than the width of the rear axle, and its fixing accuracy reaches 0.5mm. The second U-shaped pad 32 contacts the rear axle and supports and fixes the rear axle, wherein the second U-shaped pad 32 realizes the support and fixation of the rear axle in the length direction (X axis) of the vehicle chassis. The second U-shaped pad 32 prevents the rear axle from being hard damaged. The first U-shaped cushion block 51 , the second U-shaped cushion block 32 and the arc-shaped cushion block 21 are made of nylon.

[0048] When the rear suspension line tightening tool of this embodiment is in use, the first U-shaped pad 51 supports and fixes the leaf spring, and the second U-shaped pad 32 supports and fixes the rear axle, with high installation accuracy, thereby improving the installation accuracy after the leaf spring and the rear axle are locked and fixed, ensuring that the rear suspension tightening accuracy is controlled at 0.5mm.

[0049] As an implementable embodiment, the first tightening assembly also includes a side support seat 4 arranged at the side end of the tooling base 1 through a connecting seat 7 and used to fix the rear axle, and an L-shaped support plate 41 is arranged on the top of the side support seat 4, and the L-shaped support plate 41 is provided with a second slot in its length direction, and the length direction of the L-shaped support plate 41 is also the length direction of the vehicle chassis (X axis). The second slot contacts the rear axle and supports and fixes the rear axle, wherein the second slot of the L-shaped support plate 41 realizes the support and fixation of the rear axle in the width direction (Y axis) of the vehicle chassis.

[0050] Furthermore, the connecting seat 7 is a ladder-shaped structure, and two ends of the connecting seat 7 are fixedly connected to the side ends of the tooling base 1 and the side support seat 4 respectively.

[0051] As an implementable embodiment, a plurality of support legs 12 are evenly arranged on the lower surface of the tool base 1. The support legs 12 are used to support the entire rear suspension line tightening tool and increase the overall height of the rear suspension line tightening tool.

[0052] The clamping tooling under the rear suspension of this embodiment first fixes the rear axle and then fixes the leaf spring. The arc pad 21 on the main support seat 2 supports the rear axle, and the second U-shaped pad 32 on the support column 3 supports and fixes the rear axle. The arc pad 21 and the two second U-shaped pads 32 realize the support and fixation of the rear axle in the length direction (X axis) of the vehicle chassis. At the same time, the second slot on the L-shaped support plate 41 supports and fixes the rear axle, and the second slot on the L-shaped support plate 41 realizes the support and fixation of the rear axle in the width direction (Y axis) of the vehicle chassis. According to the position requirements for locking the leaf spring and the rear axle, the positions of the multiple U-shaped supports 5 are adjusted and then fixed. The first U-shaped pads 51 on the multiple U-shaped supports 5 contact the leaf spring and support the leaf spring, realizing the support and fixation of the leaf spring in the width direction (Y axis) of the vehicle chassis. The leaf spring and the rear axle on the clamping tooling under the rear suspension can be directly locked and fixed, and the locked and fixed leaf spring and rear axle are then directly installed on the chassis of the corresponding vehicle to be assembled.

[0053] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, other implementation methods can certainly be easily made by replacement or modification based on the technical contents disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A rear suspension line tightening tool, comprising a tool base (1) and a tightening mechanism arranged on the tool base (1), characterized in that: The tightening mechanism comprises a first tightening component and a second tightening component. The first tightening assembly comprises a main support seat (2) and two support columns (3) movably arranged on the tooling base (1) and used to fix the rear axle, wherein the two support columns (3) are located on both sides of the main support seat (2); The second tightening assembly comprises a plurality of U-shaped supports (5) movably arranged around the tooling base (1) and used to fix the leaf spring, and the plurality of U-shaped supports (5) are located outside the two support columns (3).

2. The rear suspension line tightening tool according to claim 1, characterized in that: Each of the U-shaped supports (5) is movably arranged on the tooling base (1) through an adjustment component (6); the adjustment component (6) comprises a first fixing plate (61), a second fixing plate (62), a third fixing plate (63) and a U-shaped frame (64); the first fixing plate (61) is movably arranged at the corner of the tooling base (1); the second fixing plate (62) is slidably arranged on the first fixing plate (61); the third fixing plate (63) is slidably arranged on the second fixing plate (62); the U-shaped frame (64) is arranged on the third fixing plate (63) and the U-shaped support (5) is slidably arranged on the U-shaped frame (64).

3. The rear suspension line tightening tool according to claim 2, characterized in that: Base plates (11) are provided at the four corners of the tooling base (1), a plurality of base plate holes (111) are provided on the base plate (11), a first fixing hole is provided on the first fixing plate (61), and a first bolt (8) passes through the first fixing hole and one of the base plate holes (111) and then abuts against the upper surface of the tooling base (1).

4. The rear suspension line tightening tool according to claim 2, characterized in that: The first fixing plate (61) is provided with a first slide rail (611) extending along its width direction; the second fixing plate (62) is provided with a second fixing hole (621) at a position corresponding to the first slide rail (611); the second bolt passes through the second fixing hole (621) and abuts against the first slide rail (611); the first fixing plate (61) is provided with two first limit blocks (612) extending along its width direction, and the second fixing plate (62) is located between the two first limit blocks (612).

5. The rear suspension line tightening tool according to claim 2, characterized in that: The second fixing plate (62) is provided with a second slide rail (622) extending along its length direction; the third fixing plate (63) is provided with a third fixing hole (631) at a position corresponding to the second slide rail (622); the third bolt passes through the third fixing hole (631) and abuts against the second slide rail (622); the second fixing plate (62) is relatively provided with two second limit blocks (623) extending along its length direction; the third fixing plate (63) is located between the two second limit blocks (623).

6. The rear suspension line tightening tool according to claim 2, characterized in that: A screw rod (641) is arranged on the bottom wall of the U-shaped frame (64); a notch is arranged on the side of the U-shaped support (5); a through hole connected to the notch is arranged at the bottom of the U-shaped support (5); the top of the screw rod (641) passes through the through hole into the notch; the screw rod (641) is fixedly connected to the U-shaped support (5) by at least one nut (642); a plurality of side holes are arranged on the side wall of the U-shaped frame (64); a fourth bolt passes through one of the side holes and abuts against the side end of the U-shaped support (5).

7. The rear suspension line tightening tool according to claim 1, characterized in that: A first U-shaped cushion block (51) is arranged in each of the U-shaped supports (5).

8. The rear suspension line tightening tool according to claim 1, characterized in that: The bottom of the main support seat (2) is locked to the center position of the upper surface of the tooling base (1), and the top of the main support seat (2) is provided with an arc-shaped cushion block (21).

9. The rear suspension line tightening tool according to claim 1, characterized in that: The bottoms of the two support columns (3) are locked to the upper surface of the tooling base (1), and the tops of the two support columns (3) are provided with L-shaped support blocks (31), and the L-shaped support blocks (31) are provided with a first slot in the length direction thereof, and a second U-shaped pad (32) is provided in the first slot.

10. The rear suspension line tightening tool according to any one of claims 1 to 9, characterized in that: The first tightening assembly also includes a side support seat (4) arranged at the side end of the tooling base (1) through a connecting seat (7) and used to fix the rear axle, and an L-shaped support plate (41) is arranged on the top of the side support seat (4), and the L-shaped support plate (41) is provided with a second slot in its length direction.

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