A linear scale

Abstract

The utility model discloses a linear gauge, it includes gauge, plug head and end, gauge includes body, copper bush I and copper bush II, the body is a pair of symmetrical step shafts, and both ends in the body interior are equipped with a counterbore, and two counterbores are communicated and symmetrical, copper bush I and copper bush II are all round pipe body, copper bush I and copper bush II are two, two copper bush II are installed respectively in the both ends of body exterior, two copper bush I are installed in the intermediate position department of body exterior and mutually adhere, two copper bush I and each side adjacent copper bush II mutually adhere, plug head is two, and plug head includes plug and handle, and handle is a boss -like pipe body, and handle boss one end with plug center place fixed, two plugs are installed respectively in the counterbore of body both ends, and handle all are located in the body both sides exterior, in handle far from the body one end, handle this end all fixed mounting has an end head. The utility model can accurately simulate the actual situation of the elastic body through the long pipe class spare in practical application, and improves work efficiency.

Description

Technical Field

[0001] This utility model relates to a linearity gauge and belongs to the field of mechanical technology. Background Technology

[0002] In the processing of artillery parts, long tubular parts need to be manufactured. The current method for inspecting long tubular parts is to use a special bore measuring instrument to measure the curvature of the long tubular parts. The special bore measuring instrument requires two people to operate at both ends of the long tubular parts, which will introduce some errors. In addition, the inner bore dimensions need to be measured and calculated for comparison. The errors in this process will affect whether the long tubular parts meet the usage requirements. If the error is large, the projectile may not be able to pass through the long tubular parts. Moreover, this inspection method is inefficient. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, this utility model provides a linearity gauge that can accurately simulate the actual situation of a projectile passing through long tubular parts in real applications. It can effectively detect whether there are errors affecting the use of long tubular parts of artillery, providing a convenient and quick testing tool while improving work efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a straight gauge, including a gauge, a plug and an end. The gauge includes a body, a copper sleeve I and a copper sleeve II. The body is a stepped shaft with symmetrical sides. A countersunk hole is provided at both ends of the body. The two countersunk holes are connected and symmetrically arranged. An internal thread is provided inside the countersunk hole. Copper sleeve I and copper sleeve II are both round tubes. There are two copper sleeves I and two copper sleeves II. The two copper sleeves II are respectively installed at both ends of the body. The two copper sleeves I are installed at the middle position of the body and fit together. The two copper sleeves I fit together with the copper sleeves II adjacent to each other on their respective sides.

[0005] There are two plugs in total. Each plug consists of a plug and a handle. The plug is a boss structure with external threads on the outer circumference of the boss portion. The handle is a boss-shaped tube body, with the boss end of the handle fixed to the center of the plug. The two plugs are threaded into the countersunk holes at both ends of the body, and the handles are located on the outer sides of the body. At the end of the handle furthest from the body, an end cap is fixedly installed.

[0006] Furthermore, both handles and the main body are located on the same central axis.

[0007] Furthermore, the wall thickness of copper sleeve II is greater than that of copper sleeve I. After copper sleeve II and copper sleeve I are installed with the main body, the outer surface of the pipe wall of copper sleeve II is flush with the outer surface of the pipe wall of copper sleeve I.

[0008] Furthermore, the handle end has an internal thread, and the end is also a boss structure. The outer circumference of the boss part has an external thread, and the boss part is threaded to the inside of the handle end.

[0009] Furthermore, a central hole is provided at the center of the plug, and the handle boss end is inserted into the central hole to fix the plug and handle in place.

[0010] The beneficial effects of this utility model are: This utility model can accurately simulate the actual situation of the projectile passing through long tube-like parts in real applications. This gauge can effectively check whether there are errors affecting the use of long tube-like parts of artillery, avoid the situation where the projectile cannot pass through, provide a convenient and quick testing tool, and improve work efficiency. It is convenient and practical. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the gauge of this utility model.

[0014] Figure 3 This is a schematic diagram of the main body of this utility model.

[0015] Figure 4 This is a schematic diagram of the plug of this utility model.

[0016] Figure 5 This is a schematic diagram of the plug of this utility model.

[0017] Figure 6 This is a schematic diagram of the handle of this utility model.

[0018] Figure 7 This is a schematic diagram of the end of this utility model.

[0019] Numbering on the map: 1. Gauge, 101. Body, 102. Copper sleeve I, 103. Copper sleeve II, 2. Plug, 201. Plug, 202. Handle, 3. End. Detailed Implementation

[0020] like Figure 1As shown in Figure 7, a straight gauge includes a gauge 1, a plug 2, and an end cap 3. The gauge 1 includes a body 101, a copper sleeve I 102, and a copper sleeve II 103. The body 101 is a stepped shaft with symmetrical sides. Both ends of the body 101 have countersunk holes that are interconnected and symmetrically arranged. The countersunk holes have internal threads. Both copper sleeve I 102 and copper sleeve II 103 are cylindrical tubes. There are two copper sleeves I 102 and two copper sleeve II 103. 103 is installed at both ends of the body 101. Two copper sleeves I 102 are installed at the middle position of the body 101 and fit together. The two copper sleeves I 102 fit together with the copper sleeves II 103 adjacent to each other on their respective sides. The wall thickness of copper sleeve II 103 is greater than the wall thickness of copper sleeve I 102. After copper sleeves II 103 and copper sleeves I 102 are installed with the body 101, the outer surface of the tube wall of copper sleeve II 103 is flush with the outer surface of the tube wall of copper sleeve I 102.

[0021] There are two plugs 2 in total. Each plug 2 includes a plug 201 and a handle 202. The plug 201 is a boss structure with external threads on its outer circumference. The handle 202 is a boss-shaped tube. The boss end of the handle 202 is fixed to the center of the plug 201. The center of the plug 201 has a central hole, and the boss end of the handle 202 is inserted into the central hole. The plug 201 and the handle 202 are then welded together. The two plugs 201 are threaded together. In the countersunk holes at both ends of the main body 101, the handles 202 are located on the outside of both sides of the main body 101, and both handles 202 and the main body 101 are located on the same central axis; at the end of the handle 202 away from the main body 101, an end head 3 is fixedly installed on this end of the handle 202. The end of the handle 202 is provided with an internal thread, and the end head 3 is also a boss structure. The outer circumferential direction of the boss part of the end head 3 is provided with an external thread, and the boss part of the end head 3 is threadedly connected to the inside of the end of the handle 202.

[0022] The linearity gauge is divided into general-purpose components and variable-structure components. The plug 2 and end 3 are general-purpose components with basically fixed dimensions; the gauge 1 is a variable structure, and the dimensions and shape of the working part are calculated according to the dimensions and shape of the parts to be processed; the plug 2 and end 3 can be installed by normal mating connection.

[0023] The main body 101 is connected to the copper sleeve I 102 and the copper sleeve II 103 by an interference fit, and the plug 201 is welded to the handle 202. When in use, the inside of the long tube-like parts is wiped clean, and the linearity gauge passes through the long tube-like parts to be considered qualified. It can accurately simulate the actual situation of the projectile passing through the long tube-like parts in actual applications, avoiding the situation where the projectile cannot pass through, which is convenient and practical.

Claims

1. A linearity gauge, characterized in that: The instrument includes a gauge (1), a plug (2), and an end (3). The gauge (1) includes a body (101), a copper sleeve I (102), and a copper sleeve II (103). The body (101) is a stepped shaft with symmetrical sides. Both ends of the body (101) are provided with a countersunk hole. The two countersunk holes are connected and symmetrically arranged. The countersunk holes are provided with internal threads. Both copper sleeve I (102) and copper sleeve II (103) are round tubes. There are two copper sleeves I (102) and two copper sleeves II (103). The two copper sleeves II (103) are respectively installed at both ends of the body (101). The two copper sleeves I (102) are installed at the middle position of the body (101) and fit together. The two copper sleeves I (102) fit together with the copper sleeves II (103) adjacent to each other on their respective sides. There are two plugs (2). The plug (2) includes a plug (201) and a handle (202). The plug (201) is a boss structure. The outer circumference of the boss part of the plug (201) is provided with an external thread. The handle (202) is a boss-shaped tube. The boss end of the handle (202) is fixed to the center of the plug (201). The two plugs (201) are respectively threaded into the countersunk holes at both ends of the body (101). The handles (202) are located on both sides of the body (101). At the end of the handle (202) away from the body (101), an end head (3) is fixedly installed on the end of the handle (202).

2. A linearity gauge according to claim 1, characterized in that: Both handles (202) and the main body (101) are located on the same central axis.

3. A linearity gauge according to claim 1, characterized in that: The wall thickness of copper sleeve II (103) is greater than that of copper sleeve I (102). After copper sleeve II (103) and copper sleeve I (102) are installed with the body (101), the outer surface of the pipe wall of copper sleeve II (103) is flush with the outer surface of the pipe wall of copper sleeve I (102).

4. A linearity gauge according to claim 1, characterized in that: The handle (202) has an internal thread inside the end, and the end (3) is also a boss structure. The boss part of the end (3) has an external thread in the outer circumferential direction. The boss part of the end (3) is threaded to the inside of the handle (202).

5. A linearity gauge according to claim 1, characterized in that: A central hole is provided at the center of the plug (201), and the boss end of the handle (202) is inserted into the central hole to fix the plug (201) and the handle (202) in place.

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