Corrosion-resistant precision casting

Abstract

The utility model relates to the technical field of castings, in particular to a corrosion-resistant precision casting which comprises a precision casting body, fixing shafts are fixedly connected to the two sides of the precision casting body, and installation assemblies are arranged at the two ends of each fixing shaft. The mounting assembly comprises a mounting base, a plurality of mounting round holes are formed in the mounting base, a bearing cylinder is fixedly connected to the inner side edge of the mounting base, a limiting key groove is formed in the inner side of the bearing cylinder, an inwards-concave key groove is formed in the fixing shaft, and a mounting key is slidably mounted on the inner side of the inwards-concave key groove. A plurality of compression springs are fixedly connected between the bottom of the mounting key and the bottom of the concave key groove, and a disassembling round hole is formed in the top of the limiting key groove. By means of the installation assembly, the precision casting body is installed stably, the center positions of the precision casting body, the fixing shaft and the installation base on the side edge are located on the same axis, positioning is accurate, meanwhile, installation is fast, and in addition, the precision casting body is quite convenient to disassemble due to the fact that the disassembling round hole is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of castings, in particular to a corrosion-resistant precision casting. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods. That is, smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods. After cooling and subsequent processing such as polishing, the resulting object has a certain shape, size and performance. Castings have a wide range of uses and can be applied to hardware, mechanical and electronic industries, etc. They can be divided into steel castings, iron castings, etc.

[0003] Existing precision castings are troublesome to install, require precise positioning and debugging, and are inconvenient to assemble and use. Therefore, it is inconvenient to meet different usage requirements, resulting in a limited scope of use of precision castings. Moreover, when disassembly and maintenance are required, it is inconvenient to disassemble. In order to solve the drawbacks of the above technology, we have proposed a corrosion-resistant precision casting. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a corrosion-resistant precision casting.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A corrosion-resistant precision casting comprises a precision casting body, with fixed shafts fixedly connected on both sides of the precision casting body, and mounting components are provided at both ends of the fixed shaft; the mounting component comprises a mounting base, a plurality of mounting circular holes are provided on the mounting base, a receiving tube is fixedly connected to the inner side of the mounting base, a limiting key groove is provided on the inner side of the receiving tube, a concave key groove is provided on the fixed shaft, a mounting key is slidably installed on the inner side of the concave key groove, a plurality of compression springs are fixedly connected between the bottom of the mounting key and the bottom of the concave key groove, a disassembly circular hole is provided starting from the top of the limiting key groove, and the disassembly circular hole extends to the outside of the fixed shaft.

[0007] Furthermore, the plurality of mounting circular holes are distributed equidistantly along the circumference of the mounting base.

[0008] Furthermore, the installation key is adapted to the size of the limiting keyway.

[0009] Furthermore, a reinforcement ring is provided on the outer side of the fixed shaft, and a plurality of positioning studs are equidistantly arranged on the circumference of the reinforcement ring. Positioning holes are provided on both sides of the precision casting body, and the inner ends of the positioning studs are screwed and installed on the inner sides of the positioning holes.

[0010] Furthermore, the positioning holes are staggered along both sides of the precision casting body.

[0011] Furthermore, a mounting groove is provided on the outer side of the precision casting body, and a plurality of balls are rollingly mounted inside the mounting groove.

[0012] Furthermore, a rotating ring is sleeved on the outer side of the precision casting body, an inner groove is opened on the inner side of the rotating ring, and the inner side edge of the inner groove is in rolling contact with the outer side of the ball.

[0013] Furthermore, the precision casting body is made of stainless steel and the chromium content in the precision casting body is not less than 12%.

[0014] Compared with the related art, the corrosion-resistant precision casting proposed by the present invention has the following beneficial effects:

[0015] In the present invention, a corrosion-resistant precision casting is provided with a mounting assembly, and the ends of the fixed shafts on both sides of the entire precision casting body are provided with mounting assemblies. The mounting key on the inner side of the concave keyway provided on the fixed shaft is acted upon by the rebound force of the compression spring, so that the mounting key protrudes to the outside of the concave keyway, thereby enabling the mounting key to abut against the inner side of the limit keyway on the inner side of the receiving tube, thereby realizing an effective connection relationship between the fixed shaft and the mounting bases on both sides, and the mounting top seat on the side can be screwed to the corresponding mounting position through the mounting circular hole opened thereon, further realizing the fixed installation function of the precision casting body in the middle part, and the installation is stable, and the center positions of the precision casting body, the fixed shaft and the mounting base on the side are on the same axial line, and the positioning is accurate.

[0016] In addition, in the present invention, a disassembly circular hole is also provided at the top of the limit keyway. When the round rod is inserted into the inner side of the disassembly circular hole, the installation key can be abutted against the inner side of the indented concave keyway. At this time, the fixed shaft can be pulled out from the inner side of the receiving tube, making the disassembly of the precision casting body very convenient, which fully improves the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a corrosion-resistant precision casting proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the full three-dimensional disassembly structure of a corrosion-resistant precision casting proposed in this utility model Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the full three-dimensional disassembly structure of a corrosion-resistant precision casting proposed in this utility model Figure 2 ;

[0020] Figure 4 This is a schematic diagram of a partially disassembled three-dimensional structure of a corrosion-resistant precision casting proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of a partial three-dimensional cross-section structure of a corrosion-resistant precision casting proposed by the utility model.

[0022] In the figure: 1. Precision casting body; 2. Fixed shaft; 3. Reinforcement ring; 4. Positioning stud; 5. Positioning hole; 6. Mounting groove; 7. Ball; 8. Mounting assembly; 81. Inner recessed keyway; 82. Compression spring; 83. Mounting key; 84. Mounting base; 85. Mounting circular hole; 86. Socket; 87. Limiting keyway; 88. Disassembly circular hole; 9. Swivel; 10. Inner groove. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0024] Reference Figure 1-5 , a corrosion-resistant precision casting: it includes a precision casting body 1, with fixed shafts 2 fixedly connected on both sides of the precision casting body 1, and mounting components 8 are provided at both ends of the fixed shaft 2; the mounting component 8 includes a mounting base 84, a plurality of mounting circular holes 85 are opened on the mounting base 84, a receiving tube 86 is fixedly connected to the inner side of the mounting base 84, and a limit key groove 87 is opened on the inner side of the receiving tube 86, and an inner concave key groove 81 is opened on the fixed shaft 2, and an installation key 83 is slidably installed on the inner side of the inner concave key groove 81, and a plurality of compression springs 82 are fixedly connected between the bottom of the installation key 83 and the bottom of the inner concave key groove 81. A disassembly circular hole 88 starts from the top of the limit key groove 87, and the disassembly circular hole 88 passes through to the outside of the fixed shaft 2, and the size of the installation key 83 is adapted to the limit key groove 87.

[0025] Through the above-mentioned setting, the installation key 83 is caused to come into contact with the outer end of the concave key groove 81 through the rebound action of the compression spring 82, so that the installation key 83 can be inserted into the inner side of the limiting key groove 87 provided on the inner side of the receiving tube 86, thereby realizing an effective connection between the fixed shaft 2 and the receiving tube 86.

[0026] In this embodiment, a plurality of circular mounting holes 85 are distributed at equal distances along the circumference of the mounting base 84 .

[0027] Through the above-mentioned arrangement, a plurality of mounting circular holes 85 are evenly distributed along the circumference of the mounting base 84. The mounting base 84 is inserted into the inner side of the mounting circular holes 85 by means of mounting screws. The mounting base 84 can be screwed and installed at the corresponding points. The connection points of the mounting screws are consistent with the mounting circular holes 85 and are evenly distributed along the circumference of the mounting base 84. This ensures that the screw connection points are evenly stressed during installation, thereby improving the installation stability.

[0028] In this method, a mounting groove 6 is provided on the outer side of the precision casting body 1, and a number of balls 7 are rollingly installed on the inner side of the mounting groove 6. A swivel 9 is provided on the outer side of the precision casting body 1, and an inner groove 10 is provided on the inner side of the swivel 9. The inner side of the inner groove 10 is in rolling contact with the outer side of the balls 7.

[0029] With the above arrangement, the precision casting body 1 maintains a rotational relationship with the outer rotating ring 9 via the plurality of balls 7 , and the plurality of balls 7 are used to reduce friction loss during rotation, thereby increasing the service life of the precision casting body 1 .

[0030] In this embodiment, the precision casting body 1 is made of stainless steel and the chromium content in the precision casting body 1 is not less than 12%.

[0031] Through the above-mentioned arrangement, the stainless steel material improves the corrosion resistance of the precision casting body 1 . In addition, the arrangement of the chromium content being not less than 12% further improves the corrosion resistance of the precision casting body 1 .

[0032] In this method, a reinforcement ring 3 is provided on the outer side of the fixed shaft 2, and a number of positioning studs 4 are arranged at equal intervals on the circumference of the reinforcement ring 3. There are positioning holes 5 on both sides of the precision casting body 1, and the inner ends of the positioning studs 4 are screwed and installed on the inner side of the positioning holes 5.

[0033] With the above arrangement, the reinforcement ring 3 is sleeved on the outside of the fixed shaft 2, and the reinforcement ring 3 is screwed to the precision casting body 1 through the positioning studs 4, thereby improving the strength of the connection side between the precision casting body 1 and the fixed shafts 2 on both sides.

[0034] In this embodiment, the positioning holes 5 are staggered along both sides of the precision casting body 1 .

[0035] By setting in the above manner, the staggered arrangement of the positioning holes 5 avoids the weakening of the main strength of the precision casting body 1 due to the symmetrical opening of the positioning holes 5 on both sides, and minimizes the weakening of the main structural strength of the precision casting body 1 due to the opening of the positioning holes 5.

[0036] The working principle of a corrosion-resistant precision casting provided by the utility model is as follows:

[0037] When in use, the installation keys 83 on the fixed shafts 2 on both sides of the precision casting body 1 are pressed into the inner side of the concave key groove 81, and then the ends of the fixed shafts 2 are inserted into the inner side of the receiving tube 86. Subsequently, the installation keys 83 are pushed outward under the rebound force of the compression spring 82 inside the concave key groove 81, so that the installation keys 83 are snapped into the inner side of the limit key groove 87. At this time, an effective connection is formed between the fixed shaft 2 and the receiving tube 86. When the fixed shafts 2 on both sides of the precision casting body 1 are inserted into the inner side of the receiving tube 86, the installation bases 84 on both sides are screwed and installed in the corresponding The fixing shaft 2 can be pulled out from the inside of the receiving tube 86 to complete the insertion and removal work on the side mounting base 84 of the precision casting body 1. The above is the working principle of the present invention. The present invention provides a mounting assembly 8 to make the installation and disassembly process of the precision casting body 1 convenient and quick, thereby improving practicality.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A corrosion-resistant precision casting, characterized in that: It comprises a precision casting body (1), wherein both sides of the precision casting body (1) are fixedly connected to fixed shafts (2), and both ends of the fixed shaft (2) are provided with mounting components (8); The mounting assembly (8) includes a mounting base (84), a plurality of mounting circular holes (85) are provided on the mounting base (84), a receiving tube (86) is fixedly connected to the inner side of the mounting base (84), a limiting keyway (87) is provided on the inner side of the receiving tube (86), an inner concave keyway (81) is provided on the fixed shaft (2), a mounting key (83) is slidably installed on the inner side of the inner concave keyway (81), a plurality of compression springs (82) are fixedly connected between the bottom of the mounting key (83) and the bottom of the inner concave keyway (81), a disassembly circular hole (88) is provided at the top of the limiting keyway (87), and the disassembly circular hole (88) passes through to the outer side of the fixed shaft (2).

2. A corrosion-resistant precision casting according to claim 1, characterized in that: The plurality of mounting circular holes (85) are distributed equidistantly along the circumference of the mounting base (84).

3. The corrosion-resistant precision casting according to claim 1, characterized in that: The size of the installation key (83) is adapted to the size of the limiting keyway (87).

4. The corrosion-resistant precision casting according to claim 1, characterized in that: The fixed shaft (2) is sleeved with a reinforcement ring (3) on the outside, and a plurality of positioning studs (4) are equidistantly arranged on the circumference of the reinforcement ring (3). Positioning holes (5) are provided at intervals on both sides of the precision casting body (1), and the inner ends of the positioning studs (4) are screwed and installed inside the positioning holes (5).

5. The corrosion-resistant precision casting according to claim 4, characterized in that: The positioning holes (5) are arranged at staggered positions along both sides of the precision casting body (1).

6. The corrosion-resistant precision casting according to claim 1, characterized in that: The outer side of the precision casting body (1) is provided with a mounting groove (6), and a plurality of balls (7) are rollingly mounted inside the mounting groove (6).

7. The corrosion-resistant precision casting according to claim 1, characterized in that: A rotating ring (9) is sleeved on the outer side of the precision casting body (1), an inner groove (10) is opened on the inner side of the rotating ring (9), and the inner side edge of the inner groove (10) is in rolling contact with the outer side of the ball (7).

8. The corrosion-resistant precision casting according to claim 1, characterized in that: The precision casting body (1) is made of stainless steel and the chromium content in the precision casting body (1) is not less than 12%.

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