Powder metallurgy new energy charging small door transmission shaft testing fixture

Abstract

The utility model discloses a powder metallurgy new energy charging small door transmission shaft testing fixture, which comprises a base assembly, a product fixing assembly and a testing gauge assembly, the base assembly is provided with a fixing seat, a to-be-tested product supporting and fixing seat and a bottom plate, the front side of the end surface of the bottom plate is provided with a mounting hole, and the fixing seat, the to-be-tested product supporting and fixing seat and the testing gauge assembly are all arranged on the bottom plate; the fixing base is vertically fixed to the rear side of the end face of the bottom plate, and a product fixing assembly is arranged on the fixing base. The gauge assembly comprises a product fixing upper insert, a concentricity insert, a concentricity insert fixing seat, an insert fixing base and a product fixing lower insert, wherein the insert fixing base can be fixed on a mounting hole in the front side of the end face of the bottom plate through a screw. After the concentricity testing fixture is applied, the working intensity of personnel is low, large-batch production and full detection can be realized, the overall quality is improved, defective products are effectively prevented from flowing out, and the data accuracy is high.

Description

Technical Field

[0001] The utility model relates to the field of powder metallurgy part manufacturing, in particular to a powder metallurgy new energy charging small door transmission shaft inspection tool. Background Technique

[0002] With the wide application of MIM technology in the field of new energy vehicle part manufacturing, more and more new energy vehicle parts are produced by MIM. Especially for the transmission shaft parts of the electric hatch structure of the charging port of new energy vehicles, due to performance requirements, the concentricity of the transmission shaft parts is required to be within 0.15 mm to avoid abnormal noises such as deformation of the transmission shaft parts and guide posts of the electric hatch structure of the charging port, and abnormal phenomena such as jamming when the charging door is opened.

[0003] During the production process of powder metallurgy products of the transmission shaft of the new energy charging small door, the phenomenon of part deformation after high-temperature sintering needs to be corrected through a shaping process, but the concentricity cannot be guaranteed to be shaped within 0.15 mm. Therefore, there is an urgent need to design a concentricity inspection tool.

[0004] At present, most companies use coordinate measuring machines, which have slow measurement speed, low efficiency, high labor costs, large occupancy of machines, and cannot perform 100% full inspection. Sampling inspection may lead to defective products flowing to customers, resulting in customer complaints; moreover, the inspection rules will be worn after long-term use of the tool, resulting in deviation of measurement data, which requires measurement personnel to discover and correct in time.

[0005] Based on this background, the utility model proposes a powder metallurgy new energy charging small door transmission shaft inspection tool, which has low labor intensity for personnel, can realize full inspection of mass production, improves the overall quality, and effectively avoids the outflow of defective products. Content of the Utility Model

[0006] The purpose of the utility model is to provide a powder metallurgy new energy charging small door transmission shaft inspection tool to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A powder metallurgy new energy charging small door transmission shaft inspection tool, including a base assembly, a product fixing assembly and a inspection rule assembly. The base assembly has a fixed seat, a to-be-inspected product support fixed seat and a bottom plate. Among them, an installation hole is provided on the front side of the end face of the bottom plate, and the fixed seat, the to-be-inspected product support fixed seat and the inspection rule assembly are all installed on the bottom plate; the fixed seat is vertically fixed on the rear side of the end face of the bottom plate, and a product fixing assembly is installed on the fixed seat; the inspection rule assembly includes a product fixing upper insert, a concentricity insert, a concentricity insert fixed seat, an insert fixed base and a product fixing lower insert, and the insert fixed base can be fixed on the installation hole on the front side of the end face of the bottom plate through screws.

[0008] Preferably, a slide rail is provided on the insert fixing base, and a concentricity insert fixing seat is slidably mounted on the slide rail. A concentricity insert is provided on the concentricity insert fixing seat.

[0009] Preferably, the product to be inspected support fixing seat is installed at the middle position of the end face of the bottom plate. A product fixing lower insert is installed on the product to be inspected support fixing seat, and a product fixing upper insert cooperating with it is provided on the product fixing lower insert.

[0010] Preferably, a plurality of grooves are provided on both the product fixing upper insert and the product fixing lower insert. The rear end of the transmission shaft product can be fixed in the grooves, and the front end of the transmission shaft product is close to the concentricity insert.

[0011] Preferably, the product fixing component is a quick clamping jaw, and the quick clamping jaw can press and fix the product fixing upper insert and make the product fixing upper insert fix the transmission shaft product.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. After the concentricity inspection tool of the present utility model is applied, the labor intensity of personnel is low, full inspection of large - batch production can be realized, the overall quality is improved, the outflow of defective products is effectively avoided, the data accuracy rate is high, and there is strong comparability. The product quality is getting better and better, and the product competitiveness is greatly improved.

[0014] 2. The inspection tool of the present utility model can increase the product yield rate, reduce the flow of defective products to customers during production. The product quality is getting better and better, and the customer dependence is continuously rising. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the inspection gauge assembly of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the base assembly and the product fixing assembly of the present utility model;

[0017] Figure 3 It is an overall assembly drawing of the present utility model.

[0018] In the figure: 1. Quick clamping jaw; 2. Fixing seat; 3. Bottom plate; 4. Product fixing upper insert; 5. Transmission shaft product; 6. Concentricity insert; 7. Concentricity insert fixing seat; 8. Insert fixing base; 9. Slide rail; 10. Product to be inspected support fixing seat; 11. Product fixing lower insert. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a powder metallurgy new energy charging small door drive shaft inspection tool, including a base assembly, a product fixing assembly and a gauge assembly. The base assembly, the product fixing assembly and the gauge assembly are all made of stainless steel material with good wear resistance. The base assembly has a fixing seat 2, a to-be-inspected product support fixing seat 10 and a bottom plate 3. Among them, an installation hole is provided on the front side of the end face of the bottom plate 3, and the fixing seat 2, the to-be-inspected product support fixing seat 10 and the gauge assembly are all installed on the bottom plate 3; the fixing seat 2 is vertically fixed on the rear side of the end face of the bottom plate 3, and the product fixing assembly is installed on the fixing seat 2; the gauge assembly includes a product fixing upper insert 4, a concentricity insert 6, a concentricity insert fixing seat 7, an insert fixing base 8 and a product fixing lower insert 11. Among them, the insert fixing base 8 can be fixed on the installation hole on the front side of the end face of the bottom plate 3 through screws.

[0023] In this embodiment, a slide rail 9 is provided on the insert fixing base 8, and the concentricity insert fixing seat 7 can be slidably installed on the slide rail 9, and a concentricity insert 6 is provided on the concentricity insert fixing seat 7.

[0024] In this embodiment, the product support and fixing base 10 is installed at the middle position of the end face of the bottom plate 3. A product fixing lower insert 11 is installed on the product support and fixing base 10, and a product fixing upper insert 4 that cooperates with it is provided on the product fixing lower insert 11.

[0025] In this embodiment, a number of grooves are provided on both the product fixing upper insert 4 and the product fixing lower insert 11. The rear end of the transmission shaft product 5 can be fixed in the groove, and the front end of the transmission shaft product 5 is close to the concentricity insert 6.

[0026] In this embodiment, the product fixing assembly is a quick-clamping jaw 1, and the quick-clamping jaw 1 can press and fix the product fixing upper insert 4 and make the product fixing upper insert 4 fix the transmission shaft product 5.

[0027] In the preparation for measuring the concentricity of the powder metallurgy product, first, the transmission shaft product 5 to be detected is installed and fixed in the fixing upper insert and the product fixing lower insert 11. Then, the upper quick-clamping jaw 1 is used to press down and clamp the product in the fixing upper insert and the product fixing lower insert 11 to prevent it from shaking and falling off to fix the measurement position. Then, the concentricity insert 6 and the concentricity insert fixing base 7 are moved towards the product until they pass through the product. If they can slide freely through the product, it is okay; if they cannot pass through freely, it means the product is deformed and is an NG product.

[0028] It should be noted that: the overall structure of the above product concentricity gauge adjusts the size of the jig according to the size of the machine tool, and it is made to be able to hold 3 pcs of products, but it is not easy to exceed 3. This not only requires a high overall accuracy of the concentricity gauge, but also increases the manufacturing cost of the concentricity gauge. Moreover, since the more products there are, the higher the cost of the equipment and the jig, and at the same time, it is inconvenient for manual operation, and the stability of product detection begins to deteriorate.

[0029] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgy new energy charging small door transmission shaft inspection tool, characterized in that, It includes a base assembly, a product fixing assembly and a gauge assembly. The base assembly has a fixing base (2), a to-be-inspected product supporting and fixing base (10) and a bottom plate (3). There are mounting holes provided on the front side of the end face of the bottom plate (3). The fixing base (2), the to-be-inspected product supporting and fixing base (10) and the gauge assembly are all installed on the bottom plate (3); the fixing base (2) is vertically fixed on the rear side of the end face of the bottom plate (3), and the product fixing assembly is installed on the fixing base (2); the gauge assembly includes a product fixing upper insert (4), a concentricity insert (6), a concentricity insert fixing base (7), an insert fixing base (8) and a product fixing lower insert (11). The insert fixing base (8) can be fixed on the mounting holes on the front side of the end face of the bottom plate (3) by screws.

2. The jig for inspecting the transmission shaft of the new energy charging small door in powder metallurgy according to claim 1, characterized in that: The insert fixing base (8) is provided with a slide rail (9), and the concentricity insert fixing base (7) can be slidably mounted on the slide rail (9). The concentricity insert (6) is provided on the concentricity insert fixing base (7).

3. A powder metallurgy new energy charging small door drive shaft inspection tool according to claim 1, characterized in that: The to-be-inspected product supporting and fixing base (10) is installed at the middle position of the end face of the bottom plate (3). The product fixing lower insert (11) is installed on the to-be-inspected product supporting and fixing base (10), and a product fixing upper insert (4) which is matched with it is provided on the product fixing lower insert (11).

4. A powder metallurgy new energy charging small door drive shaft inspection tool according to claim 1, characterized in that: A number of grooves are provided on both the product fixing upper insert (4) and the product fixing lower insert (11). The rear end of the transmission shaft product (5) can be fixed in the grooves, and the front end of the transmission shaft product (5) is close to the concentricity insert (6).

5. A powder metallurgy new energy charging small door drive shaft inspection tool according to claim 1, characterized in that: The product fixing assembly is a quick clamping jaw (1). The quick clamping jaw (1) can press and fix the product fixing upper insert (4) and make the product fixing upper insert (4) fix the transmission shaft product (5).

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