CN210922410U

CN210922410U - Rear suspension upper body examination tool

Info

Publication number: CN210922410U
Application number: CN201922059634.5U
Authority: CN
Inventors: 牛磊; 李金梅; 毕书浩; 胡阳; 唐小东
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-03
Anticipated expiration: 2029-11-26

Abstract

The utility model aims at providing a detect quick, the back suspension physical examination utensil of going up of precision height and with low costs, be provided with down on the base and hold in the palm locating piece and the clamping mechanism of press fit restriction back suspension upper part of the body position, be provided with the locating pin that corresponds with the mounting hole position on the locating piece, the hole core of mounting hole is located the vertical direction on the locating piece props the back suspension upper part of the body, still is provided with the determine module who is used for detecting bush inner core hole position and terminal surface profile degree on the base. In the scheme, in order to facilitate detection, the hole core of the mounting hole, to which the rear suspension upper body is positioned, is positioned in the vertical direction, and then the position of the inner core hole of the bushing and the profile degree of the end face are detected, so that the detection is convenient and the precision is high.

Description

Rear suspension upper body examination tool

Technical Field

The utility model relates to an automobile parts detects technical field, concretely relates to utensil of examining of back suspension upper part of the body.

Background

The suspension system of the automobile power assembly is an elastic connecting piece between the power assembly and an automobile body and mainly plays roles of supporting the weight of the power assembly, limiting the displacement of the power assembly under various working conditions, attenuating the vibration transmitted to the automobile body by the excitation of the power assembly and the like. In most cases, an automobile power assembly suspension system comprises a left suspension component, a right suspension component and a rear suspension component, and the NVH performance of the whole automobile is directly influenced by the installation angle, the installation position and the rigidity of each suspension component on an automobile body. The rear suspension comprises a rear suspension upper body and a rear suspension lower body, wherein the rear suspension upper body is in a triangular block shape as shown in figure 1, three connecting holes 1 connected with the power assembly are formed in one side edge of the rear suspension upper body, and the connecting position on the power assembly is an uneven surface, so that the whole left suspension bracket is ensured to be in a horizontal plane through the positions of the connecting holes 1, and therefore the surface difference control of the lower end surfaces of the three connecting holes 1 is very important; the corner opposite to the side where the connecting hole 1 is located is provided with a lining inner core hole 2, and two end faces of the lining inner core hole 2 are clamped between two connecting arms of the rear suspension lower body, so that the position and the end face profile of the lining inner core hole 2 determine the reliability of connection with the rear suspension lower body.

In the prior art, the positions of the connecting hole 1 and the inner core hole 2 of the bushing are mostly measured through three coordinates, namely, the measured part is placed in a measurement space range allowed by a three-coordinate measuring machine, numerical values of points on the surface of the measured part at three spatial coordinate positions are accurately measured, the coordinate numerical values of the points are processed by a computer and are fitted to form measuring elements such as circles, spheres, cylinders, cones, curved surfaces and the like, and the shape, position tolerance and other geometric data of the measuring elements are obtained through a mathematical calculation method.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a detect quick, the high just with low costs back suspension upper part of the body utensil of examining of precision.

In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides a back suspension upper part of the body utensil, is provided with down on the base and holds in the palm locating piece and clamping mechanism that press fit restricted back suspension upper part of the body position, is provided with the locating pin that corresponds with the mounting hole position on the locating piece, and the hole core of mounting hole is located the vertical direction on the locating piece bracketing back suspension upper part of the body, still is provided with the detection subassembly that is used for detecting core hole position and terminal surface profile degree in the bush on the base.

In the scheme, in order to facilitate detection, the hole core of the mounting hole, to which the rear suspension upper body is positioned, is positioned in the vertical direction, and then the position of the inner core hole of the bushing and the profile degree of the end face are detected, so that the detection is convenient and the precision is high.

Drawings

FIG. 1 is a schematic structural diagram of a rear suspension upper body;

FIG. 2 is an overall schematic view of the gauge;

FIG. 3 is a block diagram of a detection block;

FIG. 4 is a block diagram of a sensing pin, a second spring cord, and a second socket;

FIG. 5 is a schematic view of a use state of the gauge.

Detailed Description

As shown in fig. 2, a base 10 is provided with a positioning block 20 and a clamping mechanism 30 which support the upper part of the rear suspension body a in a lower-upper press fit manner to limit the position of the rear suspension body a, the positioning block 20 is provided with a positioning pin 21 corresponding to the position of the mounting hole 1, the positioning block 20 supports the hole core of the mounting hole 1 in the rear suspension body a in the vertical direction, and the base 10 is further provided with a detection component for detecting the position of the hole 2 in the bushing and the end face profile. Firstly, the mounting hole 1 of the rear suspension upper body A is aligned with the positioning pin 21 and placed in, the hole core of the mounting hole 1 on the suspension upper body A is positioned in the vertical direction under the support of the positioning block 20, so that the relevant indexes can be conveniently detected, then the clamping mechanism 30 clamps the rear suspension upper body A, so far, the position of the rear suspension upper body A is limited, then the detection assembly detects the position of the inner core hole 2 of the bushing and the end face profile, and the detection precision is improved.

Further, as shown in fig. 3, the detection assembly includes a detection block 41 disposed on the base 10 below the bushing inner core hole 2, an upper end surface of the detection block 41 is a detection surface 411, a middle portion of the detection surface 411 is provided with a detection hole 412 corresponding to the bushing inner core hole 2, the plug pin 42 is inserted into the detection hole 412 from the bushing inner core hole 2, and the go-no-go gauge 43 is inserted into a gap between a lower end surface of the bushing inner core hole 2 and the detection surface 411. After the rear suspension upper body a is positioned, the plug pin 42 is inserted into the detection hole 412 from the bushing inner core hole 2, and if the plug pin 42 can be easily inserted into the bushing inner core hole 2 and the detection hole 412, the position of the bushing inner core hole 2 is qualified, otherwise, the position is not qualified. The go-no-go gauge 43 is inserted into the gap between the lower end face of the bushing inner core hole 2 and the detection face 411, if the passing section can pass through the part west and the no-go gauge section cannot pass through the part west, the end face profile degree of the bushing inner core hole 2 is qualified, and other conditions are not qualified.

In order to prevent the plug pin 42 and the go-no-go gauge 43 from being lost, one end of the plug pin 42 is connected with a first spring rope 44, the other end of the first spring rope 44 is connected with a first socket 45 fixed on the base 10, the plug pin 42 can be inserted into the first socket 45, one end of the go-no-go gauge 43 is connected with a second spring rope 46, the other end of the second spring rope 46 is connected with a second socket 47 fixed on the base 10, and the go-no-go gauge 43 can be inserted into the second socket 47. In a non-detection period, the plug pin 42 is inserted into the first socket 45, and the go-no go gauge 43 is inserted into the second socket 47; when the detection is needed, the plug pin 42 and the pass-stop gauge 43 are pulled out from the first socket 45 and the second socket 47 with little force.

In order to prolong the service life of the detection block 4, the detection block 41 comprises an outer shell 413, a square hole 413a with a hole core located in the vertical direction is formed in the middle of the outer shell 413, an inner core block 414 is arranged in the square hole 413a, the upper end face of the inner core block 414 is flush with the upper end face of the outer shell 413 and jointly forms a detection face 411, the detection hole 412 is arranged on the inner core block 414, and the inner core block 414 is made of nylon materials. The position of the inner core block 414 is the most severely worn part, so the part is arranged as the inner core block 414 which can be replaced, and is made of nylon material to enhance the wear resistance.

Because the connecting part on the power assembly is an uneven surface, the hole core of the mounting hole 1 on the upper suspension body A is required to be supported and supported in the vertical direction, and the scheme adopted here is as follows: the positioning blocks 20 are formed by three separated positioning blocks, so that the weight is reduced, the heights of the upper end faces of the three positioning blocks 20 are different, the purpose that the hole cores of the mounting holes 1 in the upper supporting suspension body A are located in the vertical direction is further met, two of the 3 positioning pins 21 are cylindrical pins, and the other positioning pin is a diamond pin.

Furthermore, the clamping mechanism 30 comprises two turnover type quick clamps, the clamping positions of the quick clamps correspond to the positioning pins 21, in order to avoid the positioning pins 21, the clamping heads of the quick clamps are horseshoe-shaped and are clamped on the upper end surfaces of the two far-away mounting holes 1, and the handles 11 are arranged at the two ends of the base 10 so as to move the whole checking fixture conveniently.

Claims

1. The utility model provides a utensil is examined to back suspension upper part of the body which characterized in that: the base (10) is provided with a positioning block (20) and a clamping mechanism (30), the lower support of the positioning block (20) is provided with a positioning pin (21) corresponding to the position of the mounting hole (1), the positioning block (20) supports the hole core of the mounting hole (1) in the rear suspension upper body A and is located in the vertical direction, and the base (10) is further provided with a detection assembly for detecting the position of the inner core hole (2) of the bushing and the end face profile tolerance.

2. The rear suspension upper body checking fixture according to claim 1, wherein: the detection assembly comprises a detection block (41) arranged on a base (10) below a bushing inner core hole (2), the upper end face of the detection block (41) is a detection face (411), a detection hole (412) corresponding to the bushing inner core hole (2) is arranged in the middle of the detection face (411), a bolt (42) is inserted into the detection hole (412) from the bushing inner core hole (2), and a go-no-go gauge (43) is inserted into a gap between the lower end face of the bushing inner core hole (2) and the detection face (411).

3. The rear suspension upper body checking fixture according to claim 2, wherein: one end of a plug pin (42) is connected with a first spring rope (44), the other end of the first spring rope (44) is connected with a first socket (45) fixed on the base (10), the plug pin (42) can be inserted into the first socket (45), one end of a go-no go gauge (43) is connected with a second spring rope (46), the other end of the second spring rope (46) is connected with a second socket (47) fixed on the base (10), and the go-no go gauge (43) can be inserted into the second socket (47).

4. The rear suspension upper body checking fixture according to claim 2, wherein: the detection block (41) comprises an outer shell (413), a square hole (413a) with a hole core located in the vertical direction is formed in the middle of the outer shell (413), an inner core block (414) is arranged in the square hole (413a), the upper end face of the inner core block (414) is flush with the upper end face of the outer shell (413) and jointly forms a detection face (411), the detection hole (412) is formed in the inner core block (414), and the inner core block (414) is made of a nylon material.

5. The rear suspension upper body checking fixture according to claim 1, wherein: the positioning blocks (20) are composed of three separated positioning blocks, the heights of the upper end faces of the three positioning blocks (20) are different, two of the 3 positioning pins (21) are cylindrical pins, and the other positioning pin is a diamond pin.

6. The rear suspension upper body checking fixture according to claim 1, wherein: clamping mechanism (30) include two convertible quick clamps, and the chuck that presss from both sides fast is on the clamp is arranged two mounting holes (1) up end of keeping away from for the horseshoe-shaped and pressing from both sides, and the both ends of base (10) are provided with handle (11).