Detection tool for rear beam rear reinforcing plate B welding piece

Abstract

The utility model relates to a rear beam rear reinforcing plate B welding piece testing fixture, which comprises a base, a main body is fixed on the base, the middle of the main body is provided with a groove, the bottom of the groove is provided with two positioning rods corresponding to the positions of positioning holes of a standard component of a rear beam rear reinforcing plate B welding piece, and each positioning rod is of a double-section structure. The diameter of one section of the bottom of each positioning rod is larger than the diameter of a positioning hole of a rear beam rear reinforcing plate B welding piece, the height of one section of the bottom of each positioning rod is 2.5 mm, an oval detection pin and a round detection pin are further arranged between the two positioning rods of the body, and the body further comprises a double-end go-no go gauge and a flush gauge. Through the positioning rod, the elliptical detection pin, the circular detection pin, the go-no go gauge and the flush gauge, the detection of the rear beam rear reinforcing plate B welding piece can be completed, and the detection accuracy and the detection efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile manufacturing technical field especially relates to a rear beam rear reinforcing plate B welding assembly testing fixture. BACKGROUND

[0002] In order to improve the strength of rear beam and provide the convenience of assembly, the rear reinforcing plate B welding assembly is added, which is composed of a smooth bottom surface and two smooth side surfaces, each of the two ends of the bottom surface is provided with a positioning hole, and an oval hole and a circular hole are further provided between the two positioning holes, and the size and position of the four holes must meet the requirements during installation, and the bottom surface and the side surface must be able to adhere to the rear beam to meet the stress requirement, it is time-consuming and laborious to detect the rear reinforcing plate B welding assembly of the rear beam by using a moving tool, and the overall judgment cannot be obtained, and the product quality control effect is poor. SUMMARY

[0003] The utility model discloses a rear beam rear reinforcing plate B welding assembly testing fixture with quick positioning, hole position detection, plane detection and notch flatness detection, which aims to solve the problems of low detection efficiency and low precision when detecting a rear beam rear reinforcing plate B welding assembly.

[0004] The utility model discloses a rear beam rear reinforcing plate B welding assembly testing fixture, including the base, the base is fixed with a main part on, the middle of main part has a recess, the bottom of recess has with the positioning hole position of rear beam rear reinforcing plate B welding assembly standard spare two position rods, the position rod is two section structure, the diameter of the bottom section of position rod > the positioning hole diameter of rear beam rear reinforcing plate B welding assembly standard spare, the diameter of the top section of position rod ≤ the positioning hole diameter of rear beam rear reinforcing plate B welding assembly standard spare, the height of the bottom section of position rod is 2.5mm, the base still has two pin holes between two position rods, and the pin hole is inserted respectively with the oval detection pin and the circular detection pin corresponding with the oval hole and the circular hole of rear beam rear reinforcing plate B welding assembly standard spare, further including a double -end go -no -go gauge with one head for phi 2.5mm another head for phi 3.5mm, further including a flush gauge, the distance D of position rod to recess inside surface = the distance d of the positioning hole of rear beam rear reinforcing plate B welding assembly standard spare to rear beam rear reinforcing plate B welding assembly standard spare outside surface + 2.5mm.

[0005] The utility model discloses a further technical scheme: the base is fixed with a go -no -go gauge seat and flush gauge seat with silica gel slot, respectively for storing double -end go -no -go gauge and flush gauge.

[0006] The utility model discloses a further technical scheme: the main part, go -no -go gauge seat and flush gauge seat are fixed on the base through bolt.

[0007] The utility model discloses a further technical scheme: the top section of position rod is a cone.

[0008] The utility model discloses the beneficial effect is: since adopting above -mentioned technical scheme, pull down oval detection pin and round detection pin, and the positioning hole of rear beam rear reinforcing plate B welding piece is put into the main part and completes the positioning and the detection of two positioning holes with the alignment positioning rod, then respectively insert oval detection pin and round detection pin and detect the oval hole and round hole of rear beam rear reinforcing plate B welding piece, then use the clearance of pass -stop gauge and the side of bottom surface and detects, finally use the flatness of flush gauge and examine the trimming face flatness of rear beam rear reinforcing plate B welding piece, five simple standardization actions can complete the detection of rear beam rear reinforcing plate B welding piece, can effectively improve the detection accuracy and detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structural schematic diagram of the rear beam rear reinforcing plate B welding piece gauge of the utility model;

[0010] Figure 2 It is the structural schematic diagram of the rear beam rear reinforcing plate B welding piece of the utility model. DETAILED DESCRIPTION

[0011] The utility model will be further explained in connection with the drawings and specific embodiment.

[0012] Embodiment:

[0013] As Figure 2 The rear beam rear reinforcing plate B welding piece shown in the utility model discloses a rear beam rear reinforcing plate B welding piece, and includes two positioning holes 1, an oval hole 2, a round hole 3, a smooth bottom surface 4 and two smooth side surfaces 5.

[0014] As Figure 1The utility model provides an after big beam rear reinforcement B welding piece gauge, an after big beam rear reinforcement B welding piece gauge, including base 6, the base 6 is fixed with a main body 7, the middle of main body 7 has a recess, the bottom of recess has two positioning rods 8 corresponding with the positioning hole position of after big beam rear reinforcement B welding piece standard spare, the positioning rod 8 is double section structure, the diameter of the bottom section of positioning rod > the positioning hole diameter of after big beam rear reinforcement B welding piece, the diameter of the top section of positioning rod ≤ the positioning hole diameter of after big beam rear reinforcement B welding piece, the height of the bottom section of positioning rod is 2.5mm, the main body is also opened two pin holes between two positioning rods, and the pin hole is inserted with the oval detection pin 9 and circular detection pin 10 corresponding with the oval hole and round hole of after big beam reinforcement B welding piece standard spare respectively, still include a double-end go-no-go gauge 11 with one end for φ2.5mm and the other end for φ3.5mm, still include a flush gauge 12, the distance D of positioning rod to recess inside surface = the distance d of the positioning hole of after big beam rear reinforcement B welding piece standard spare to after big beam rear reinforcement B welding piece standard spare outside surface +2.5mm.

[0015] Preferably, the top section of positioning rod is a cone, and the positioning hole is more convenient to enter and exit. It should be noted that the size of the positioning hole is not strictly required and can be moderately relaxed.

[0016] The main body, go-no-go gauge seat and flush gauge seat can be made into fasteners and base through bolts for disassembly and assembly, which is convenient to replace. When the gauge is not in use, the base can be recycled and used for other gauges.

[0017] The base can be made small in size and only accommodate the main body, go-no-go gauge seat and flush gauge seat. The result of this treatment is to carry and use. Therefore, the base is provided with fixing holes and clamping grooves. After being carried into place, it can be fixed to the workbench through the fixing holes and clamping grooves for use.

[0018] The base is also designed with a nameplate and reference coordinates. These are general designs and will not be described again.

[0019] Working principle: pull out the positioning pin, put the rear beam rear stiffener B welding assembly into the groove, the positioning hole falls into the positioning rod to complete the positioning and the detection of the distance of two positioning holes (otherwise unqualified), put the rear beam rear stiffener B welding assembly into the round detection pin and the oval detection pin to detect the round hole and the oval hole respectively, cannot be inserted or has obvious gap for the hole size is not consistent, can be inserted into the hole but cannot be inserted into the pin hole, which indicates that the hole position is not consistent, otherwise both are qualified; the double-end go-no-go gauge is inserted to detect the corresponding bottom surface and side surface space gap, the φ2.5 head of the go-no-go gauge passes through the φ3.5 head, which cannot pass through, and is qualified, and vice versa is unqualified, the flush gauge with a tolerance of ±0.5mm is used to detect the corresponding cut edge surface, and the space gap is between ±0.5mm, which is qualified. During the inspection process, all parts cannot be forcedly pressed in to avoid damage and artificial inspection error.

[0020] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rear-sill rear-stiffener B weldment gauge, characterized by: The application relates to a positioning device for a rear beam rear reinforcing plate B welding assembly standard part, which comprises a base, a main body fixed on the base, a recess in the middle of the main body, two positioning rods corresponding to the positioning hole positions of the rear beam rear reinforcing plate B welding assembly standard part at the bottom of the recess, the positioning rods being double-section structures, the diameter of the bottom section of the positioning rod being greater than the diameter of the positioning hole of the rear beam rear reinforcing plate B welding assembly, the diameter of the top section of the positioning rod being less than the diameter of the positioning hole of the rear beam rear reinforcing plate B welding assembly, the height of the bottom section of the positioning rod being 2.5 mm, two pin holes being further formed between the two positioning rods on the main body, an elliptical detection pin and a circular detection pin being respectively inserted into the elliptical hole and the circular hole of the rear beam rear reinforcing plate B welding assembly standard part, a double-head go-no-go gauge with one head being 2.5 mm in diameter and the other head being 3.5 mm in diameter, and a flush gauge, the distance D between the positioning rod and the inner side of the recess being equal to the distance d between the positioning hole of the rear beam rear reinforcing plate B welding assembly standard part and the outer side of the rear beam rear reinforcing plate B welding assembly standard part plus 2.5 mm.

2. The rear-sill rear reinforcement plate B welding member inspection fixture according to claim 1, characterized by: A go-no-go gauge seat with a silica gel slot and a flush gauge seat are fixed on the base and used for storing the double-head go-no-go gauge and the flush gauge respectively.

3. A gage for welding the rear bolster rear stiffening plate B according to claim 2, characterized in that: The main body, the go-no-go gauge seat and the flush gauge seat are fixed on the base through bolts.

4. The device according to any one of claims 1-3, characterized in that: The top section of the positioning rod is a cone.

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