Tool for checking and accepting jack friction shoes

Abstract

The tool comprises a circular ring body, an upper lug plate, a lower lug plate, a positioning cylinder, a to-be-inspected friction shoe body and a friction shoe lug, the upper lug plate and the lower lug plate are both vertically bent towards the same side to form an L-shaped folded edge, positioning holes are formed in the upper lug plate and the lower lug plate, and the upper lug plate and the lower lug plate are connected with the positioning cylinder. A positioning cylinder used for being inserted into a friction shoe lug is arranged in the positioning hole and used for checking and accepting a jack friction shoe. The tool is ingenious in design and simple in structure, the limit size is given according to the matching size of the friction shoe, whether a friction shoe casting meets the use condition of the limit size or not can be visually seen, accurate positioning is achieved, the acceptance time is saved, the acceptance efficiency is improved, and the repair rate is reduced. The technical problems that in the existing bottom lifting jack friction shoe acceptance inspection process, manual measurement acceptance inspection generally consumes much time and is not high in accuracy, time and labor are wasted, and production efficiency is affected are solved, and compared with the prior art, the bottom lifting jack friction shoe acceptance inspection device has good market prospects and development space.

Description

Technical Field

[0001] The utility model relates to the technical field of acceptance tools for castings, in particular to a tool for accepting the friction shoes of a jack. Background Art

[0002] The friction shoes used for the bottom-lifting jack have irregular shapes. To improve the material utilization rate, reduce the processing procedures and costs, the friction shoes are cut from castings and the mating surfaces are machined after returning to the factory. The casting blanks need to be measured for the limit dimensions to determine whether they can meet the usage requirements. During acceptance, the mating dimensions of a single friction shoe casting need to be measured manually with a ruler multiple times. Manual measurement and acceptance generally take a long time and have low accuracy, which is time-consuming and laborious and affects the production efficiency.

[0003] How to design a tool for accepting the friction shoes of a jack that is ingeniously designed, simple in structure, gives the limit dimensions according to the mating dimensions of the friction shoes, can intuitively show whether the friction shoe casting meets the usage conditions of the limit dimensions, has accurate positioning, saves the acceptance time, improves the acceptance efficiency, and reduces the repair rate is the problem that needs to be solved currently. Summary of the Utility Model

[0004] In order to solve the technical problems such as the manual measurement and acceptance in the acceptance process of the friction shoes of the existing bottom-lifting jack generally taking a long time and having low accuracy, being time-consuming and laborious, and affecting the production efficiency, the utility model provides a tool for accepting the friction shoes of a jack to achieve the purposes of ingenious design, simple structure, giving the limit dimensions according to the mating dimensions of the friction shoes, being able to intuitively see whether the friction shoe casting meets the usage conditions of the limit dimensions, having accurate positioning, saving the acceptance time, improving the acceptance efficiency, and reducing the repair rate.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: A tool for accepting the friction shoes of a jack includes a circular ring body, upper ear plates, lower ear plates, positioning cylinders, a friction shoe body to be inspected, and friction shoe ears. Among them, the upper ear plates and the lower ear plates are symmetrically arranged on the edge of the circular ring body. The upper ear plates and the lower ear plates are both vertically bent towards the same side to form L-shaped flanges. Positioning holes are provided on both the upper ear plates and the lower ear plates, and positioning cylinders for inserting the friction shoe ears are arranged in the positioning holes to accept the friction shoes of the jack.

[0006] As a further optimized scheme of the above tool for accepting the friction shoes of a jack, the flange length of the upper ear plate is less than the flange length of the lower ear plate.

[0007] As a further optimized scheme of the above tool for accepting the friction shoes of a jack, the friction shoe body is of a flat ring-shaped structure, and two friction shoe ears that are centrosymmetric are arranged on the edge of the friction shoe body. Reserved holes matching the positioning cylinders are provided on the friction shoe ears.

[0008] As a further optimized solution for the above-mentioned tooling for the acceptance of the friction shoes of the jack, the outer diameter of the positioning cylinder matches the inner diameter of the reserved hole of the friction shoe ear.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0010] The present utility model includes a toroidal body, an upper ear plate, a lower ear plate, a positioning cylinder, a friction shoe body to be inspected, and a friction shoe ear. The present utility model is ingeniously designed. The tooling gives the limit dimensions according to the matching dimensions of the friction shoes. Friction shoes that exceed or are lower than the limit dimensions cannot meet the usage requirements. It can be directly seen whether the friction shoe castings meet the usage conditions, saving the time of using a ruler for measurement, improving the acceptance efficiency, accurately positioning, and reducing the rework rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the front view structural schematic diagram of the present utility model;

[0012] Figure 2 is the side view structural schematic diagram of the present utility model;

[0013] Figure 3 is the three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 4 is the three-dimensional structural schematic diagram of the friction shoe to be accepted;

[0015] Figure 5 is the separation schematic diagram of the friction shoe to be accepted and the acceptance tooling;

[0016] Figure 6 is the assembly schematic diagram of the friction shoe to be accepted and the acceptance tooling;

[0017] Markings in the figure: 1. Toroidal body, 2. Upper ear plate, 3. Lower ear plate, 4. Positioning cylinder, 5. Friction shoe body, 6. Friction shoe ear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further details the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0019] As shown in Figure 1 , 2 , 3, the tooling for the acceptance of the friction shoes of the jack includes a toroidal body 1, an upper ear plate 2, a lower ear plate 3, a positioning cylinder 4, a friction shoe body 5 to be inspected, and a friction shoe ear 6. Among them, the upper ear plate 2 and the lower ear plate 3 are symmetrically arranged on the edge of the toroidal body 1. The upper ear plate 2 and the lower ear plate 3 are both vertically bent towards the same side to form an L-shaped folded edge. The folded edge length of the upper ear plate 2 is less than the folded edge length of the lower ear plate 3. Positioning holes are provided on both the upper ear plate 2 and the lower ear plate 3, and a positioning cylinder 4 for inserting the friction shoe ear 6 is arranged in the positioning holes for accepting the friction shoes of the jack.

[0020] As shown in Figure 4 the figure, Figure 4 it is a schematic diagram of the three-dimensional structure of the friction shoe to be inspected and accepted; the friction shoe body 5 is of a flat ring structure, and two friction shoe ears 6 that are centrosymmetric are arranged on the edge of the friction shoe body 5, and a reserved hole matching the positioning cylinder 4 is opened on the friction shoe ear 6. The outer diameter of the positioning cylinder 4 matches the inner diameter of the reserved hole of the friction shoe ear 6.

[0021] In actual operation, as shown in Figure 5 and 6 the figure, Figure 5 it is a schematic diagram of the separation of the friction shoe to be inspected and accepted from the inspection tooling; Figure 6 it is a schematic diagram of the assembly of the friction shoe to be inspected and accepted and the inspection tooling.

[0022] The working principle of the present utility model is as follows: First, place the friction shoe horizontally on a flat tabletop, and the lower surface of the ring body 1, the lower surface of the upper ear plate 2, and the lower surface of the lower ear plate 3 are attached to the upper surface of the friction shoe body 5; the two positioning cylinders 4 are inserted into the reserved holes of the friction shoe ears 6.

[0023] The acceptance criteria for the friction shoe are as follows:

[0024] 1. If the inner diameter of the friction shoe body 5 is the same as the inner diameter of the ring body 1, it meets the technical requirements; if the inner diameter of the friction shoe body 5 is smaller than the inner diameter of the ring body 1, it can meet the technical requirements after subsequent turning processing; if the inner diameter of the friction shoe body 5 is larger than the inner diameter of the ring body 1, it does not meet the technical requirements;

[0025] 2. When the two positioning cylinders 4 are inserted into the reserved holes of the friction shoe ears 6, if they cannot be inserted equally, it does not meet the technical requirements;

[0026] 3. If the height of the upper ear plate 2 is equal to the height of the friction shoe ear 6, it meets the technical requirements; if the width of the upper ear plate 2 is equal to the width of the friction shoe ear 6, it meets the technical requirements;

[0027] 4. If the height of the lower ear plate 3 is equal to the height of the friction shoe body 5, it meets the technical requirements; if the height of the friction shoe body 5 is greater than the height of the lower ear plate 3, it can meet the usage requirements after subsequent turning processing and is regarded as qualified; if the height of the friction shoe body 5 is less than the height of the lower ear plate 3, it is regarded as unqualified.

[0028] The present utility model is ingeniously designed and has a simple structure. By giving the limit dimensions according to the mating dimensions of the friction shoe, it can be directly seen whether the friction shoe casting meets the usage conditions of the limit dimensions, with accurate positioning, saving the acceptance time, improving the acceptance efficiency, reducing the rework rate, and solving the technical problems such as the generally time-consuming and inaccurate manual measurement and acceptance during the acceptance process of the existing friction shoes of the bottom-lifting jacks, which is time-consuming and laborious and affects the production efficiency. For the existing technology, it has good market prospects and development space.

[0029] The preferred specific embodiments and examples of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments and examples, and various changes can be made without departing from the concept of the present utility model within the scope of knowledge possessed by those skilled in the art.

Claims

1. The tooling used for the acceptance of jack friction shoes is characterized by: The invention comprises a ring body (1), an upper ear plate (2), a lower ear plate (3), a positioning cylinder (4), a friction shoe body (5) to be inspected, and a friction shoe ear (6), wherein the upper ear plate (2) and the lower ear plate (3) are symmetrically arranged on the edge of the ring body (1), the upper ear plate (2) and the lower ear plate (3) are both vertically bent toward the same side to form an L-shaped folded edge, and positioning holes are opened on the upper ear plate (2) and the lower ear plate (3), and a positioning cylinder (4) for inserting the friction shoe ear (6) is arranged in the positioning hole, so as to inspect and accept the jack friction shoe.

2. The tooling for acceptance of jack friction shoes as claimed in claim 1, characterized in that: The folded edge length of the upper ear plate (2) is smaller than the folded edge length of the lower ear plate (3).

3. The tooling for acceptance of jack friction shoes as claimed in claim 1, characterized in that: The friction shoe body (5) is a flat ring structure, and two centrally symmetrical friction shoe ears (6) are arranged on the edge of the friction shoe body (5). The friction shoe ears (6) are provided with reserved holes that match the positioning cylinder (4).

4. The tooling for acceptance of jack friction shoes as claimed in claim 3, characterized in that: The outer diameter of the positioning cylinder (4) matches the inner diameter of the reserved hole of the friction shoe ear (6).

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