Gauge for measuring assemblability of gun body part

Abstract

The utility model discloses a gauge for measuring the assemblability of a gun body part, which can quickly detect the assemblability of the gun body part. Comprising a base, a supporting plate is fixed to the rear end of the base, a positioning shaft is fixed to the supporting plate, a connecting plate is fixed to the front end of the base, a left limiting plate and a right limiting plate are fixed to the connecting plate, the opposite ends of the left limiting plate and the right limiting plate are arc-shaped, and a limiting block is arranged on one side of the upper end face of the front portion of the base and is in an L shape. A measuring clamping plate is arranged on the inner side of the vertical section of the limiting block and used for being matched with a clamping groove of a T-shaped part at the lower end of an adjuster limiting seat to detect the assembling performance of a gun body part, the flat section of the limiting block is matched in the base, and a limiting button is fixed to the end of the flat section of the limiting block through a limiting screw and is in sliding fit with the base. The flat section of the limiting block is sleeved with a compression spring, one end of the compression spring acts on the base, and the other end of the compression spring acts on the limiting button.

Description

Technical Field

[0001] The utility model relates to the technical field of firearms, in particular to a gauge for measuring the assembly performance of gun body parts. Background Art

[0002] Gun body parts refer to the parts such as the press-fitted sleeve, gas seat, regulator stop seat and muzzle device on the barrel parts. Gun body parts are an important part of firearms products and an important guarantee for the automatic and reliable shooting of firearms products. At the same time, firearms are usually equipped with various accessories and accessories, such as sights, grenade launchers, tactical lights, etc. These accessories and accessories have an important impact on shooting accuracy and combat capabilities. Therefore, the assembly test of gun body parts is particularly important.

[0003] The traditional method for testing the assembly of gun body components is generally to simulate the assembly with the real object. The real object is qualified if it can be flexibly loaded and taken out. However, due to the inconsistency of the real state of the parts, the interchangeability of the gun body parts is poor. At the same time, the assembled objects are frequently used, which can easily cause wear on the working surface and cause the physical object to be scrapped. The traditional testing method has problems such as cumbersome testing, unreliable testing, and low efficiency. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a gauge for measuring the assembly of gun body parts. The utility model can quickly detect the assembly of gun body parts, has low cost, high efficiency and convenient operation.

[0005] The purpose of the utility model is achieved in this way:

[0006] A gauge for measuring the assembly of gun body parts, comprising a base, the base is in a strip shape, a support plate is fixed to the rear end of the base, a positioning shaft is fixed to the support plate, the positioning shaft is used to be inserted into a receiving assembly hole of the gun body for positioning, a connecting plate is fixed to the front end of the base, a left limit plate and a right limit plate are fixed to the connecting plate by threaded fasteners, the facing ends of the left limit plate and the right limit plate are in an arc shape, the facing ends of the left limit plate and the right limit plate are located on the same circle, and the circle is used to match the gap with the limit seat of the adjuster of the gun body;

[0007] A limit block is provided on one side of the front upper end surface of the base, and the limit block is L-shaped. A measuring card is provided on the inner side of the vertical section of the limit block. The measuring card is used to cooperate with the T-shaped slot at the lower end of the regulator limit seat to detect the assembly of the gun body parts. The flat section of the limit block is fitted in the base, and the end of the flat section of the limit block is fixed with a limit button by a limit screw. The limit button is slidably fitted on the base, and a compression spring is sleeved on the flat section of the limit block. One end of the compression spring acts on the base, and the other end of the compression spring acts on the limit button.

[0008] Preferably, the lower end of the connecting plate is fixed on the base, the upper end of the connecting plate is U-shaped, the middle part of the U-shaped upper end of the connecting plate is used to make way for the gun body, and the two sides of the U-shaped upper end of the connecting plate are used to fix the left limit plate and the right limit plate.

[0009] Preferably, the limit button is a rectangular parallelepiped structure, and a circumferential positioning is formed between the limit button and the base.

[0010] Preferably, a gap is left at the lower parts of the opposite ends of the left limit plate and the right limit plate, and the gap is used to make way for the T-shaped part at the lower end of the regulator limit seat.

[0011] Preferably, the rear end of the measuring clamp is a guiding inclined surface, and the guiding inclined surface is used to cooperate with the T-shaped portion at the lower end of the regulator limit seat to automatically give way.

[0012] Preferably, a stepped hole is provided on the base, and the compression spring is located in the stepped hole and forms an axial positioning.

[0013] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0014] 1. Press the limit button in the gauge to move the limit block outward, and then match the regulator limit seat part in the gun body part to be tested with the gauge. The fitting hole in the gun body part can be flexibly installed into the positioning shaft in the gauge, and the limit block in the gauge can be flexibly inserted and locked in the gun body part, which means that the assembly of the gun body part is qualified. If the positioning shaft in the gauge cannot be inserted or the limit block in the gauge cannot be flexibly reset to lock the gun body part, it is unqualified.

[0015] 2. This gauge can quickly detect the assembly of gun body parts. It has simple structure, high measurement accuracy, fast detection efficiency, low wear and easy operation.

[0016] 3. This testing gauge can be used to test the assembly of conventional firearm body parts and has a wide range of applications.

[0017] 4. For different gun body parts, it can be realized by adjusting the base length, positioning shaft diameter, left / right limit plate, with low design and manufacturing costs and good interchangeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the gun body parts;

[0019] Figure 2 It is a schematic diagram of the gauge structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the utility model when the gauge and the gun body parts are matched for detection;

[0021] Figure 4 is a schematic diagram of the structure of the base;

[0022] Figure 5 It is the front view of the left limit plate;

[0023] Figure 6 It is the front view of the right limit plate;

[0024] Figure 7 is a structural schematic diagram of the connecting plate;

[0025] Figure 8 It is a structural schematic diagram of the limit block;

[0026] Fig. 9 It is a structural diagram of a limit button;

[0027] Fig.10 is a structural schematic diagram of a support plate;

[0028] Fig.11 This is the main view of the positioning axis.

[0029] Reference numerals

[0030] In the attached drawings: 1-connecting plate, 2-left limit plate, 3-right limit plate, 4-limit block, 5-limit screw, 6-limit button, 7-base, 8-positioning shaft, 9-support plate, 10-measuring card plate, 11-adjuster limit seat. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0032] A gauge for measuring the assembly of gun body parts, including a base 7, the base 7 is in a strip shape, a support plate 9 is fixed to the rear end of the base 7, a positioning shaft 8 is fixed on the support plate 9, the positioning shaft 8 is used to be inserted into the receiving assembly hole of the gun body for positioning and forming a clearance fit, a connecting plate 1 is fixed to the front end of the base 7, a left limit plate 2 and a right limit plate 3 are fixed to the connecting plate 1 by threaded fasteners, the facing ends of the left limit plate 2 and the right limit plate 3 are arc-shaped, the facing ends of the left limit plate 2 and the right limit plate 3 are located on the same circle, and the circle is used to limit the adjustment of the gun body The limit block 4 is L-shaped, and a measuring card is provided on the inner side of the vertical section of the limit block 4. The measuring card is used to cooperate with the T-shaped slot at the lower end of the regulator limit seat to detect the assembly of the gun body parts. The flat section of the limit block 4 is fitted in the base 7, and the end of the flat section of the limit block 4 is fixed with a limit button 6 by a limit screw 5. The limit button 6 is slidably fitted on the base 7. A compression spring is sleeved on the flat section of the limit block 4, and one end of the compression spring acts on the base 7, and the other end of the compression spring acts on the limit button 6.

[0033] The lower end of the connecting plate 1 is fixed on the base 7, and the upper end of the connecting plate 1 is U-shaped. The U-shaped upper end of the connecting plate 1 is used to make way for the gun body, and the two sides of the U-shaped upper end of the connecting plate 1 are used to fix the left limit plate 2 and the right limit plate 3. The limit button 6 is a rectangular parallelepiped structure, and a circumferential positioning is formed between the limit button 6 and the base 7. The vertical section of the limit block 4 is slidably matched with the base 7, and a circumferential positioning is formed to prevent the limit block 4 from rotating.

[0034] A gap is left at the lower parts of the opposite ends of the left limit plate 2 and the right limit plate 3, and the gap is used to make way for the T-shaped part at the lower end of the regulator limit seat. A stepped hole is provided on the base 7, and the compression spring is located in the stepped hole and forms an axial positioning. The front end of the measuring card plate is a positioning plane, and the rear end of the measuring card plate is a guiding inclined surface. The positioning plane is used to limit the longitudinal position of the T-shaped part at the lower end of the regulator limit seat, and the guiding inclined surface is used to automatically make way with the T-shaped part at the lower end of the regulator limit seat. When unqualified, the making way function of the guiding inclined surface can prevent wear and damage. When qualified, the card slot of the T-shaped part at the lower end of the regulator limit seat directly passes through the measuring card plate.

[0035] Specifically: Figure 2 , Figure 4-Figure 11 As shown, a gauge for measuring the assembly of gun body parts includes a base 7, a left limit plate 2, a right limit plate 3, a connecting plate 1, a limit block 4, a limit button 6, a limit screw 5, a spring, a support plate 9, and a positioning shaft 8. The left limit plate 2 and the right limit plate 3 are installed on the connecting plate 1 by screws and positioning pins to form a positioning ring for limiting the gun body parts; the connecting plate 1 is installed on the base 7 by screws and positioning pins, so that the base 7, the connecting plate 1, the left limit plate 2, and the right limit plate 3 are integrated; the limit block 4, the limit button 6, the limit screw 5, and the spring are installed on the base 7, and the movement of the limit block 4 can be realized by pressing the limit button 6, and the adjustment of the pressing stroke of the limit button 6 can be realized by the limit screw 5, and the limit button 6 is flexibly reset under the action of the spring; the support plate 9 is installed on the base 7 by screws and limit pins to ensure firmness; the positioning shaft 8 is tightly installed on the support plate 9.

[0036] like Figure 4 As shown, the base 7 adopts a hollow structure, which is lighter and more operable, and the front and rear end surfaces are provided with threaded holes and positioning pin holes connected to the connecting plate 1 and the support plate 9.

[0037] like Figure 5 As shown, the left limit plate 2 is made of mold steel with good wear resistance, the manufacturing accuracy of the arc shape is ≤0.003mm, and the manufacturing accuracy of the step height difference is ≤0.003mm. After being combined with the right limit plate 3, a measuring surface is formed, which is provided with a threaded hole and a positioning pin hole for fixing to the connecting plate 1.

[0038] like Figure 6As shown, the right limit plate 3 is made of mold steel with good wear resistance, the manufacturing accuracy of the arc shape is ≤0.003mm, and the manufacturing accuracy of the step height difference is ≤0.003mm. After being combined with the left limit plate 2, a measuring surface is formed, and a threaded hole and a positioning pin hole for fixing the connecting plate 1 are provided.

[0039] like Figure 7 As shown, the connecting plate 1 adopts a U-shaped structure, and the U-shape is used to make way during measurement to avoid interference with the gun body assembly. The connecting plate 1 is provided with threaded holes and positioning pin holes fixed to the left limit plate 2, the right limit plate 3, and the base 7, so that the left limit plate 2 and the right limit plate 3 form a measuring positioning ring. The diameter accuracy of the ring formed after assembly is ≤0.005mm, and the diameter accuracy of the groove width formed is ≤0.006mm.

[0040] like Figure 8 As shown, the limit block 4 is made of a material with high strength and good wear resistance, and the limit block 4 is provided with a screw hole connected with the limit screw.

[0041] like Fig. 9 As shown, the limiting button 6 has rounded corners all around to ensure the smoothness of the edges.

[0042] The end face of the limit screw is a standard "I"-shaped screw, which is used to adjust the assembly amount with the limit block, making it easy to replace the wearing parts of the gauge.

[0043] The compression spring enables flexible resetting of the limit button.

[0044] like Fig.10 As shown, the support plate 9 is provided with a threaded hole and a positioning pin hole for fixing with the base 7 , and is provided with a positioning shaft hole for matching with the positioning shaft 8 .

[0045] like Fig.11 As shown, the positioning shaft 8 is made of a material with high hardness and good wear resistance and is installed on the support plate 9.

[0046] like Figure 2 As shown, the symmetry accuracy between the center line of the circle formed by the left limit plate and the right limit plate after assembly and the center line of the limit pin is ≤0.003mm.

[0047] The detection process of the utility model:

[0048] During detection, by pressing the limit button in the gauge, the limit block is moved outward, and then the regulator limit seat part in the gun body component to be detected is matched with the ring formed by the left limit plate 2 and the right limit plate 3 in the gauge. The adapter assembly hole in the gun body component can be flexibly loaded into the positioning shaft 8 in the gauge, and the limit block 4 in the gauge can be flexibly inserted and locked in the gun body component, which means that the gun body component is qualified for assembly. If the positioning shaft 8 in the gauge cannot be inserted or the limit block 4 in the gauge cannot be flexibly reset to jam the gun body component, it is unqualified. This gauge can quickly detect the assembly of the gun body component, with fast detection efficiency, small wear and easy operation. In order to ensure the hardness and wear resistance of the gauge, the gauge adopts low-carbon steel carburizing treatment to improve the hardness of the gauge and reduce wear, and the measurement accuracy is high.

[0049] The utility model has the advantages of compact structure, high measurement accuracy, low wear and easy operation. Although the detection gauge cannot determine the specific value of the deviation of the actual size of the part, it can determine whether the comprehensive error of the part meets the design requirements. At the same time, the gauge is easy to operate and has high detection efficiency. Therefore, it is particularly suitable for the detection of the assembly of large quantities of firearm body parts.

[0050] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A gauge for measuring the fit of gun body parts, characterized in that: The base comprises a base, the base is in a strip shape, a support plate is fixed on the rear end of the base, a positioning shaft is fixed on the support plate, the positioning shaft is used to be inserted into the receiving assembly hole of the gun body for positioning, a connecting plate is fixed on the front end of the base, a left limiting plate and a right limiting plate are fixed on the connecting plate through threaded fasteners, the facing ends of the left limiting plate and the right limiting plate are in an arc shape, the facing ends of the left limiting plate and the right limiting plate are located on the same circle, and the left limiting plate and the right limiting plate are used to cooperate with the limit seat of the regulator of the gun body; A limit block is provided on one side of the front upper end surface of the base, and the limit block is L-shaped. A measuring card is provided on the inner side of the vertical section of the limit block. The measuring card is used to cooperate with the T-shaped slot at the lower end of the regulator limit seat to detect the assembly of the gun body parts. The flat section of the limit block is fitted in the base, and the end of the flat section of the limit block is fixed with a limit button by a limit screw. The limit button is slidably fitted on the base, and a compression spring is sleeved on the flat section of the limit block. One end of the compression spring acts on the base, and the other end of the compression spring acts on the limit button.

2. A gauge for measuring the fit of gun body parts according to claim 1, characterized in that: The lower end of the connecting plate is fixed on the base, the upper end of the connecting plate is U-shaped, the middle part of the U-shaped upper end of the connecting plate is used to make way for the gun body, and the two sides of the U-shaped upper end of the connecting plate are used to fix the left limiting plate and the right limiting plate.

3. A gauge for measuring the fit of gun body parts according to claim 1, characterized in that: The limit button is a rectangular parallelepiped structure, and a circumferential positioning is formed between the limit button and the base.

4. A gauge for measuring the fit of gun body parts according to claim 1, characterized in that: A gap is reserved at the lower parts of the opposite ends of the left limiting plate and the right limiting plate, and the gap is used to make way for the T-shaped part at the lower end of the regulating limit seat.

5. A gauge for measuring the fit of gun body parts according to claim 1, characterized in that: The rear end of the measuring clamping plate is a guiding inclined surface, and the guiding inclined surface is used to cooperate with the T-shaped portion at the lower end of the regulator limiting seat to automatically give way.

6. A gauge for measuring the fit of gun body parts according to claim 1, characterized in that: A stepped hole is provided on the base, and the compression spring is located in the stepped hole to form axial positioning.

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