Device and method for detecting passing flexibility of magazine
By designing a device for detecting the flexibility of machine gun latch of magazine bolts, the problems of high detection cost and poor feasibility in the prior art are solved, and accurate detection of magazine flexibility is achieved, and production efficiency and gun reliability are improved.
Patent Information
- Application Number
- CN202510176691.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-04-29
AI Technical Summary
In the prior art, the flexibility of the machine gun latch of the gun detection magazine is insufficient, and it cannot meet all the needs of gun assembly, and the detection cost is high and the feasibility is poor.
Design a through-flexibility detection device for magazines, including measuring gear seats, magazine positioning structures and machine gun latch simulation component structures. The machine gun latch simulation component structure is slid on the measuring tool base through a sliding device, simulating the movement of the machine gun latch, and detecting whether the machine gun latch of the magazine passes flexible.
The machine gun latch of the magazine gun is realized accurately through flexibility, which can promptly eliminate unqualified magazines, reduce inspection costs, improve production efficiency, and ensure the reliability of the gun.
Smart Images
Figure CN119901174A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of firearms, and in particular to a device and method for detecting the passing flexibility of a magazine. Background Art
[0002] The flexibility of the bolt's movement directly affects the reliability of the gun mechanism's action.
[0003] The original magazine enters the general assembly workshop after passing the flexibility test of the bolt. After the finished magazine is assembled to the finished gun, the magazine is judged to be qualified by pulling the bolt back and forth to observe and feel whether the bolt movement is flexible and stable. Due to the influence of the cumulative tolerance and dimensional deviation between the parts of the finished gun, the state of each finished gun is different. Using a certain finished gun to test the flexibility of a large number of magazine bolts cannot meet the assembly needs of all finished guns. If the magazine is tested during assembly, unqualified magazines cannot be removed in time, and the finished gun is used as a measuring tool, the cost is relatively high. Summary of the invention
[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a magazine passing flexibility detection device and method, which can accurately detect whether the bolt and the bolt pass flexibly and smoothly after the magazine is installed on the gun.
[0005] The object of the present invention is achieved in that: A magazine passing flexibility detection device, characterized in that it comprises a measuring base (1), on which a magazine positioning structure and a bolt bolt simulation component structure (2) are provided; The magazine positioning structure is used to position the magazine under test and put the magazine in a working posture; The bolt bolt simulation structure (2) is provided with a bolt bolt pressure block and a bolt bolt pressure block, the bolt bolt pressure block and the bolt bolt pressure block are used to simulate the bolt bolt pressure surface structure and the bolt bolt pressure surface structure of a firearm, the bolt bolt simulation structure (2) is mounted on the measuring tool seat (1) through a sliding device, and the bolt bolt simulation structure (2) slides on the measuring tool seat (1) to simulate the sliding action of the bolt bolt along the guide rail of the receiver.
[0006] Preferably, the magazine positioning structure comprises a magazine housing seat (3), the magazine housing seat (3) is fixed on the measuring tool seat (1), a magazine entry slot is formed on the magazine housing seat (3), a magazine front hanging positioning block (4) and a magazine rear end limiting block (8) are also provided on the magazine housing seat (3), the magazine front hanging positioning block (4) and the magazine rear end limiting block (8) are located on the side of the magazine entry slot, the magazine front hanging positioning block (4) is used to hang the front end of the magazine, and the magazine rear end limiting block (8) is used to limit the lateral position of the magazine rear end, and the magazine housing seat (3) is installed with a magazine buckle (7) and a magazine buckle spring (6) through a magazine buckle shaft (5), and the magazine buckle (7) is used to limit the longitudinal position of the magazine rear end. The principles of the magazine front hanging positioning block (4), the magazine rear end limiting block (8) and the magazine buckle (7) are the same as those of firearms.
[0007] Preferably, the magazine entry slot forms a width positioning dimension L1 of the magazine to be measured, and an upward upper limit surface is provided in the magazine compartment seat (3), and the upward upper limit surface forms an upward upper limit dimension L8 of the magazine to be measured.
[0008] Preferably, the bolt bolt simulation component structure (2) comprises a sliding shaft, a bolt bolt pressure block and a bolt bolt pressure block are arranged on the sliding shaft, the bolt bolt pressure block and the bolt bolt pressure block are used to sequentially pass through the center position of the magazine's bullet holding port, the bolt bolt pressure block has a working surface that simulates the width and position of the bolt bolt pressure surface, and the bolt bolt pressure block has a working surface that simulates the width and position of the bolt bolt pressure surface, and both ends of the sliding shaft are mounted on the measuring tool seat (1) through a sliding device.
[0009] Preferably, a handle is provided on the bolt pressure block.
[0010] Preferably, the sliding device comprises a sliding bracket (9), a limiting bracket (11), and a guide rail (12); the sliding bracket (9) and the limiting bracket (11) are arranged on the measuring tool seat (1), the limiting bracket (11) is U-shaped, and the guide rail (12) is horizontally installed between the two ends of the top of the limiting bracket (11) to enclose an anti-rotation sliding square groove; the two ends of the sliding shaft of the bolt bolt simulation structure (2) are slidably fitted in the sliding shaft sleeve I (10) and the sliding shaft sleeve II (13), the sliding shaft sleeve I (10) is fixed in the sliding bracket (9), and the sliding shaft sleeve II (13) is fixed in the magazine seat (3); one end of the bolt pressure block is a square structure, and the square structure is slidably fitted in the sliding square groove formed by the guide rail (12) and the limiting bracket (11), and the handle passes through the sliding square groove.
[0011] A detection method based on a magazine passing flexibility detection device comprises the following steps: firstly, pulling a handle to move a bolt bolt simulation component structure (2) to the rear end, loading the tested magazine into the magazine positioning structure, and completing the positioning of the tested magazine; then pulling the handle forward to move the bolt bolt simulation component structure (2) forward to the front end, and then pulling the handle backward to move the bolt bolt simulation component structure (2) backward to the rear end; during the whole process, the bolt bolt pressure block and the working surfaces of the bolt bolt pressure block press downward the bullet support plate of the tested magazine; if the bolt bolt simulation structure passes through the bullet holding port smoothly without being stuck, the bolt bolt of the tested magazine passes the passing flexibility qualified; otherwise, it fails.
[0012] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The method and device of the present invention can accurately detect whether the magazine's bolt bolt is qualified through flexibility. The detection method of the present invention is to put the magazine into the magazine positioning structure, and observe and feel whether the movement is flexible by sliding the bolt bolt simulation structure, so as to determine whether the magazine is qualified. After the magazine is assembled, the device of the present invention can be used to detect the magazine, timely adjust and select the appropriate bullet support plate component, or remove unqualified magazines to avoid the continued circulation of unqualified products.
[0013] The detection device of the present invention effectively overcomes the original detection method, which uses magazines assembled on finished guns to determine whether the movement of the bolt is flexible and stable, which is not conducive to discovering magazine problems in advance and cannot meet all finished gun assembly requirements. The detection cost is high and the feasibility is poor. Through a simple device, magazines suitable for all finished guns can be effectively screened out, and qualified magazines can be quickly screened out in the production stage. For unqualified magazines, they can also be repaired in time by replacing the magazine support plate components, etc., reducing the backlog of work-in-progress and improving production efficiency. Qualified magazines can be tested and assembled on any finished gun to ensure the stability of the bolt movement, effectively ensuring the reliability of the finished gun. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the bolt bolt simulation structure; Figure 3 This is a schematic diagram of the structure of the magazine bay.
[0015] Reference numerals In the attached drawings, 1- measuring tool seat; 2- bolt bolt simulation structure; 3- magazine compartment seat; 4- magazine front hanging positioning block; 5- magazine buckle shaft; 6- magazine buckle spring; 7- magazine buckle; 8- magazine rear end limit block; 9- sliding bracket; 10- sliding shaft sleeve Ⅰ; 11- limiting frame; 12- guide rail; 13- sliding shaft sleeve Ⅱ. DETAILED DESCRIPTION
[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0017] When implementing it, Figure 1 As shown, a device for detecting the flexibility of a magazine includes a measuring base 1, a magazine positioning structure, a bolt simulation structure, and a sliding device.
[0018] The magazine positioning structure is used to position the magazine under test so that the magazine is in a working posture; the bolt simulation structure is used to simulate the bullet-compression surface structure of the bolt and the bolt in the firearm product, and the handle is pulled to simulate the forward and backward movement working posture of the bolt and the bolt; the sliding device is used to make the bolt simulation slide smoothly during the measurement process, simulating the movement of the bolt sliding along the guide rail of the receiver.
[0019] The magazine compartment seat 3 is fixed to the measuring tool seat 1 by screws and pins. A magazine entry slot is opened on the magazine compartment seat 3, and the width is the same as the width of the magazine compartment slot on the finished gun receiver; the magazine compartment seat 3 is provided with a mounting hole for a magazine front hanging positioning block 4, and screws and pins are used to correctly position and install the magazine front hanging positioning block 4, and the width of the magazine front hanging positioning block is the same as the size of the corresponding part of the finished gun receiver; the magazine compartment seat 3 is provided with a mounting hole for a magazine rear end limiting block 8, and screws and pins are used to correctly position and install the magazine rear end limiting block 8, and the magazine rear end limiting block is used for the rear end limiting after the magazine is loaded, and the size formed by the magazine rear end limiting block and the magazine front hanging positioning block is the same as the length size of the magazine compartment on the finished gun receiver; the magazine compartment seat 3 is provided with a mounting hole for a magazine buckle, and a magazine buckle shaft 5 is used to hinge the magazine buckle spring 6 and the magazine buckle 7 on the magazine compartment seat 3.
[0020] The magazine positioning structure adopts the magazine compartment structure of the finished gun; the magazine magazine positioning structure is composed of a magazine compartment seat 3, a magazine front hanging positioning block 4, a magazine buckle shaft 5, a magazine buckle spring 6, a magazine buckle 7, and a magazine rear end limit block 8. The structure is determined by the structure of the magazine assembled on the receiver of the finished gun, and can accurately load and position the magazine, and lock the magazine to keep the magazine in a working state; the measured magazine width positioning dimension L1 formed by the magazine compartment seat 3 is the same as the magazine compartment structure of the receiver body, and the dimension is the maximum physical dimension of the magazine compartment on the receiver, which is used to detect whether the maximum physical dimension of the magazine can be loaded, and the tolerance of this example is +0.007; the measured magazine upward limit dimension L8 formed by the magazine compartment seat 3 is the same as the magazine compartment structure of the receiver body, and the dimension is the position dimension of the upper and lower limit surfaces of the gun barrel axis and the receiver body magazine, the same as the product figure dimension, and the example tolerance is ±0.01; the magazine front hanging positioning block 4 is determined according to the product receiver size, and the front hanging The width dimensions L3, L2 and length dimension L6 of the positioning part are the same as those of the same parts of the receiver in the product figure, and the example tolerance is 0.02; after the front magazine hanging positioning block 4 and the rear magazine limiting block 8 are assembled, the width positioning dimension L4 of the magazine to be tested along the axis direction of the barrel is formed, which is determined by the product size, and the example tolerance is +0.005; after the front magazine hanging positioning block 4 and the rear magazine limiting block 8 are assembled, the relative position dimension L9 formed is determined by the product size, and the example tolerance is ±0.01; the axis of the magazine buckle 7 assembled on the magazine seat 3 and the position dimension L5 of the front magazine hanging positioning block 4, as well as the distance dimension L7 from the sliding axis, are determined according to the product size, and the example tolerance is ±0.01; to ensure accurate positioning, the bolt simulation structure passes through the center of the magazine to be tested, and the dimensions L1, L2, and L3 related to the magazine positioning width should be symmetrical with the sliding axis, and the example symmetry tolerance is 0.008.
[0021] The magazine seat 3 has a limiting surface and a positioning groove, the positioning groove is used to be positioned on the upper end of the magazine to be tested, and the limiting surface is used to limit the upper limit position of the magazine to be tested. The magazine front hanging positioning block 4 is provided with a positioning surface, and the positioning surface is used to cooperate and position the magazine front hanging on one side of the upper end of the magazine to be tested. The magazine rear end limiting block 8 is provided with a limiting surface, which is used to limit the rearward position of the upper end of the magazine, so that the magazine buckle can be easily inserted into the arc surface of the magazine to be tested. The magazine buckle 7 and the magazine buckle spring 6 are hinged on the magazine seat 3 through the magazine buckle shaft 5, and the magazine buckle spring 6 is used to make the magazine buckle press and lock the two arc surfaces at the rear end of the magazine to be tested.
[0022] The bolt simulation structure 2 is provided with a bolt pressure block structure and a bolt pressure block structure, and their width and length dimensions are the same as those of the bolt and bolt pressure part structures of the finished gun.
[0023] The bolt bolt simulation structure 2 is composed of a sliding shaft, a bolt simulation structure and a bolt simulation structure. Through the forward and backward movement of the bolt bolt simulation structure 2, it can simulate the forward and backward movement working mode of the gun pulling the bolt, the bolt and the bolt pressing down the bullet plate and passing through the magazine holding port in sequence; the simulated bolt bullet pressing surface width dimension L12 and the distance from the sliding center L11 are determined according to the product size, and the example tolerance is 0.01; the simulated bolt bullet pressing surface width dimension L13 and the distance from the sliding center L14 are determined according to the product size, and the example tolerance is 0.01; the bolt bolt simulation structure is designed with a threaded hole for assembling the handle for connecting the handle; in order to ensure the flexibility of sliding, the simulated bolt and bolt bullet pressing surface width dimensions L12 and L13 should be symmetrical with the sliding axis, and the example is 0.008.
[0024] The sliding device comprises a bolt bolt simulation structure 2, a magazine seat 3, a sliding bracket 9, a limit frame 11, a guide rail 12, a sliding sleeve I 10, and a sliding sleeve II 13; in the sliding device, the magazine seat 3 is mounted on the measuring tool seat 1 by screws and pins, and the magazine seat 3 has an axial hole for mounting the sliding sleeve II 13; the sliding bracket 9 is mounted on the measuring tool seat 1 by screws and pins, and the sliding bracket 9 has an axial hole for mounting the sliding sleeve I 10, and the sliding sleeve I 10 and the sliding sleeve II 13 are concentric; the limit frame 11 in the sliding device The position frame 11 is mounted on the measuring tool seat 1 by screws and pins, and the guide rail 12 is installed on the limit frame 11 by screws and pins to form an anti-rotation sliding square groove; the concentric axes at both ends of the bolt simulation structure 2 in the sliding device are respectively strung on the sliding sleeve Ⅰ10 and the sliding sleeve Ⅱ13, and at the same time, the square structure of the bolt simulation is installed in the sliding square groove formed by the guide rail 12 and the limit frame 11, so that the bolt simulation can slide back and forth smoothly along the axial direction, simulating the action of the bolt sliding on the guide rail of the finished gun receiver.
[0025] The sliding bracket (9) is mounted on the measuring tool seat (1) to form a concentric axial hole with the axial hole on the magazine housing seat (3), and then the sliding shaft sleeve 1 (10) and the sliding shaft sleeve 2 (13) are respectively installed to form a concentric axial hole of the bolt and bolt simulation component structure (2). The center lines of the two axial holes are symmetrical with the magazine positioning groove, and the height of the magazine positioning part is kept consistent with the finished gun structure, so as to ensure that the bolt and bolt simulation component structure (2) pass through the upper end of the magazine to be measured from the center, just like the finished gun movement structure. The guide rail and the limit frame (11) are mounted on the magazine housing seat (3), and the guide rail is mounted on the guide rail and the limit frame (11), forming a square groove for preventing the bolt simulation member from rotating. The square block of the bolt simulation member moves in the square groove, which can ensure that the bolt and the bolt simulation member structure (2) will not rotate along the axis line, making the movement more stable. At the same time, the front and rear limit of the square groove can ensure that when the magazine to be tested is loaded, the bolt and the bolt simulation member have a sufficient distance from it, and can also ensure that the sliding shaft does not fall out of the shaft hole during the sliding process.
[0026] The bolt simulation component structure 2 is driven by the handle to move along the axis of the sliding sleeve, so that the bolt simulation component structure can move forward and backward; the closed square groove formed by the limit frame 11 and the guide rail 12 can limit the rotation of the bolt simulation component structure and limit the range of forward and backward movement; the sliding shaft φd at both ends of the bolt simulation component structure 2 and the hole φD of the two sliding sleeves 10 and 11 are defined by the designer himself, and the actual matching clearance is only 0.005, and the tolerances of φd and φD are both 0.005, ensuring flexible movement within the minimum clearance; the height L14 of the sliding block of the bolt simulation part of the bolt simulation component structure 2 and the height L15 of the closed square groove formed by the limit frame 11 and the guide rail 12 are defined by the designer himself, and the actual matching clearance is only 0.005, and the tolerances of L14 and L15 are both 0.005, ensuring flexible movement within the minimum clearance; in order to ensure the sliding flexibility, the sliding groove, the sliding block and the movement axis should be symmetrical, and the actual symmetry tolerance is 0.008.
[0027] A method for testing the flexibility of a magazine bolt: first, pull the handle to move the bolt simulation structure 2 to the rear end, load the tested magazine into the magazine positioning structure, make the tested magazine front hang fit with the magazine front hang positioning block 4, and then lock the tested magazine with the magazine buckle 7, and the positioning and clamping of the tested magazine is completed; pull the handle forward to move the bolt simulation structure 2 forward to the front end, and then pull the handle backward to move the bolt simulation structure 2 backward to the rear end. During the whole process, the bullet pressing surface of the bolt simulation structure presses down the bullet supporting plate, and passes through the bullet holding port smoothly without any feeling of sticking. If the tested magazine bolt passes the flexibility, it is qualified, otherwise, it is unqualified.
[0028] The principle of the present invention is: 1. The magazine positioning structure in the detection device simulates the magazine compartment structure of the receiver, and has the same structure as the magazine compartment and magazine buckle of the finished gun receiver. After the magazine under test is placed in the magazine positioning device, it can be reliably positioned, which is the working positioning state of the magazine processing assembly.
[0029] 2. The bolt simulation structure in the detection device simulates the bullet-compression surface structure of the bolt in the finished gun. Its height dimension and bullet-compression surface structure as well as the magazine positioning part are the same as those of the bolt of the finished gun. It drives the bullet-compression part of the bolt through the handle to press down and cross the bullet-receiving plate to move back and forth, simulating the working state of the bolt in the finished gun pressing down and crossing the bullet-receiving plate during the back and forth movement.
[0030] 3. The sliding device in the detection device can make the bolt move flexibly within the minimum gap between the shaft hole and the square groove, simulating the working state of the bolt moving back and forth in the gun.
[0031] The detection device of the present invention effectively overcomes the deficiency that the original magazine enters the final assembly without being tested for flexibility and cannot meet all the assembly requirements of the finished gun. It can simply detect whether the magazine's bolt has passed the flexibility test in the production link, thereby improving the detection efficiency and ensuring product quality.
[0032] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention 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 present invention.
Claims
1. A magazine passing flexibility detection device, characterized in that: It comprises a measuring tool seat (1), on which a magazine positioning structure and a bolt bolt simulation component structure (2) are provided; The magazine positioning structure is used to position the magazine under test and put the magazine in a working posture; The bolt bolt simulation structure (2) is provided with a bolt bolt pressure block and a bolt bolt pressure block, the bolt bolt pressure block and the bolt bolt pressure block are used to simulate the bolt bolt pressure surface structure and the bolt bolt pressure surface structure of a firearm, the bolt bolt simulation structure (2) is mounted on the measuring tool seat (1) through a sliding device, and the bolt bolt simulation structure (2) slides on the measuring tool seat (1) to simulate the sliding action of the bolt bolt along the guide rail of the receiver.
2. A magazine passing flexibility detection device according to claim 1, characterized in that: The magazine positioning structure comprises a magazine compartment seat (3), the magazine compartment seat (3) being fixed on the measuring tool seat (1), the magazine compartment seat (3) being provided with a magazine entry slot, the magazine compartment seat (3) being further provided with a magazine front hanging positioning block (4) and a magazine rear end limiting block (8), the magazine front hanging positioning block (4) and the magazine rear end limiting block (8) being located on the side of the magazine entry slot, the magazine front hanging positioning block (4) being used for hanging the front end of the magazine, the magazine rear end limiting block (8) being used for lateral limiting of the rear end of the magazine, the magazine compartment seat (3) being provided with a magazine buckle (7) and a magazine buckle spring (6) via a magazine buckle shaft (5), the magazine buckle (7) being used for longitudinal limiting of the rear end of the magazine.
3. The magazine passing flexibility detection device according to claim 2, characterized in that: The magazine entry slot forms a width positioning dimension L1 of the magazine to be measured, and an upward upper limit surface is provided in the magazine compartment seat (3), and the upward upper limit surface forms an upward upper limit dimension L8 of the magazine to be measured.
4. The magazine passing flexibility detection device according to claim 1, characterized in that: The bolt bolt simulation component structure (2) comprises a sliding shaft, a bolt bolt pressure block and a bolt bolt pressure block arranged on the sliding shaft, the bolt bolt pressure block and the bolt bolt pressure block are used to sequentially pass through the center position of the magazine's bullet holding port, the bolt bolt pressure block has a working surface simulating the width and position of the bolt bolt pressure surface, and the bolt bolt pressure block has a working surface simulating the width and position of the bolt bolt pressure surface, and both ends of the sliding shaft are mounted on the measuring tool seat (1) through a sliding device.
5. The magazine passing flexibility detection device according to claim 4, characterized in that: A handle is provided on the bolt pressure block.
6. The magazine passing flexibility detection device according to claim 5, characterized in that: The sliding device comprises a sliding bracket (9), a limiting bracket (11), and a guide rail (12); the sliding bracket (9) and the limiting bracket (11) are arranged on the measuring tool seat (1); the limiting bracket (11) is U-shaped; the guide rail (12) is horizontally installed between the two ends of the top of the limiting bracket (11) to enclose an anti-rotation sliding square groove; the two ends of the sliding shaft of the bolt bolt simulation structure (2) are slidably fitted in the sliding shaft sleeve I (10) and the sliding shaft sleeve II (13); the sliding shaft sleeve I (10) is fixed in the sliding bracket (9); the sliding shaft sleeve II (13) is fixed in the magazine seat (3); one end of the bolt bullet pressing block is a square structure; the square structure is slidably fitted in the sliding square groove formed by the guide rail (12) and the limiting bracket (11); and the handle passes through the sliding square groove.
7. A method for detecting a magazine passing through a flexibility detection device based on claim 1, characterized in that: First, the handle is pulled to move the bolt breech block simulation structure (2) to the rear end, and the magazine to be tested is loaded into the magazine positioning structure to complete the positioning of the magazine to be tested; the handle is pulled forward to move the bolt breech block simulation structure (2) forward to the front end, and then the handle is pulled backward to move the bolt breech block simulation structure (2) backward to the rear end. During the whole process, the working surfaces of the bolt breech block and the bolt breech block press downward the bullet support plate of the magazine to be tested. If the bolt breech block simulation structure passes the bullet holding port smoothly without jamming, the bolt breech block of the magazine to be tested passes the flexibility test, otherwise, it fails.