Special fixture for shotgun bullet cup trace inspection

Abstract

The utility model relates to the technical field of shotgun bullet cups, in particular to a special fixture for shotgun bullet cup trace inspection, which comprises a microscope, an objective table is arranged on one side of the microscope, an intermittent motion structure is arranged at the top of the objective table, and three threaded sleeves are fixedly connected to the top of the intermittent motion structure. An inner cavity of the threaded sleeve is in threaded connection with a threaded rod, and the top end of the threaded rod extends to the outer side of the threaded sleeve and is fixedly connected with an elastic base. Compared with the prior art, the utility model has the advantage of good inspection effect, and in the actual use process, three different models of thread bushings are arranged on the top of the support table, so that the positioning of three models of bullet seats can be realized, the flexibility of the inspection work is greatly improved, more types of bullet seats can be covered in the inspection process, and the inspection efficiency is improved. Therefore, diversified inspection requirements are met, and then the elastic cup is placed in the inner cavity of the elastic seat.

Description

TECHNICAL FIELD

[0001] The utility model relates to hunting rifle bullet cup technical field, concretely is a kind of hunting rifle bullet cup trace inspection special fixture. BACKGROUND

[0002] The proportion of hunting rifle in domestic gun-related cases shows the trend of increasing year by year, due to the special structure of hunting rifle and hunting rifle bullet, usually no shell is left at crime scene, but bullet cup is left, however, bullet cup is plastic product, trace condition is poor, easy to deform after hitting target, greatly increase the difficulty of inspection and identification work, greatly influence the efficiency and quality of case investigation.

[0003] At present, although many attempts have been made in automatic identification and comparison in bullet trace inspection, in practice, manual comparison is still the main method, and the main equipment required is optical comparison microscope, it is particularly important to fix the bullet cup sample stably on the object table, it is difficult to fix the bullet cup sample of larger size reliably by traditional rubber cement, repeated adjustment of position can greatly reduce the inspection efficiency, and interference marks are easily formed on the surface of plastic bullet cup during clamping process of chuck type rigid clamp, therefore, there is an urgent need for a hunting rifle bullet cup trace inspection special fixture to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a hunting rifle bullet cup trace inspection special fixture, which has the advantages of good inspection effect, and solves the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a hunting rifle bullet cup trace inspection special fixture, comprising a microscope, one side of the microscope is provided with an object table, the top of the object table is provided with an intermittent motion structure, the top of the intermittent motion structure is fixedly connected with three threaded sleeves, the inner cavity of the threaded sleeve is threadedly connected with a threaded rod, the top end of the threaded rod extends to the outside of the threaded sleeve and is fixedly connected with a bullet seat.

[0006] The intermittent motion structure comprises a base on the top of the object table, a circular rod is rotatably connected to the center of the top of the base, an adjusting frame is sleeved on the surface of the circular rod, three adaptive grooves one are formed in the surface of the adjusting frame, three adaptive grooves two are formed in the surface of the adjusting frame, the adaptive grooves one and the adaptive grooves two are distributed alternately, four vertical plates in equidistant annular distribution are fixedly connected to the top of the base, an electric motor is fixedly connected to one side of the vertical plate at the rear side, the output shaft of the electric motor is fixedly connected with a rotating plate, a adjusting plate is fixedly connected to the bottom of one side of the rotating plate, the adjusting plate is matched with the adaptive grooves one, a circular block is fixedly connected to the top of one side of the rotating plate, the circular block is matched with the adaptive grooves two, the top end of the circular rod is fixedly connected with a supporting table, and the supporting table is fixedly connected with the threaded sleeve.

[0007] Further, as a preferred of the utility model, the size of the three threaded sleeves is different, and the three threaded sleeves are matched with the corresponding threaded rods and elastic seats in size.

[0008] Further, as a preferred of the utility model, the top of the base is provided with four fixing bolts, and the bottom end of the fixing bolt penetrates into the inner cavity of the object table.

[0009] Further, as a preferred of the utility model, the bottom of the motor is fixedly connected with a supporting plate, and one side of the supporting plate is fixedly connected with the vertical plate.

[0010] Further, as a preferred of the utility model, the bottom of the supporting table is provided with a sliding groove, and the top of the vertical plate extends into the inner cavity of the sliding groove and is slidably connected with the sliding groove.

[0011] The technical scheme has the following technical effects: the utility model has the advantages of good inspection effect, three threaded sleeves of different models are arranged on the top of the supporting table, thereby the three models of elastic seats can be positioned, the flexibility of the inspection work is greatly improved, the inspection process can cover more types of elastic seats, thereby the diversified inspection requirements are met, the elastic cup is placed into the inner cavity of the elastic seat, then the elastic cup is inspected by using the microscope, the appearance of the elastic cup is not affected by the clamp, the next elastic seat to be inspected can be accurately rotated to the lens of the microscope, and the inspection efficiency is improved, and the labor intensity of the workers is reduced.

[0012] It should be understood that all combinations of the aforementioned concepts and additional concepts described in greater detail below can be seen as part of the utility model subject matter of the present disclosure, as long as such concepts are not mutually contradictory. BRIEF DESCRIPTION OF DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic view of the supporting table, the threaded sleeve, the threaded rod and the elastic seat of the utility model;

[0016] Figure 3The utility model intermittent motion structure partial structure three-dimensional schematic diagram Figure 1 ;

[0017] Figure 4 The utility model intermittent motion structure partial structure three-dimensional schematic diagram Figure 2 ;

[0018] Figure 5 The utility model support table downward three-dimensional schematic diagram.

[0019] In the figure, the meaning of each reference sign is as follows: 1, microscope;2, object table;3, intermittent motion structure;31, base;32, round rod;33, adjusting frame;34, adaptive slot one;35, adaptive slot two;36, vertical plate;37, motor;38, rotating plate;39, adjusting plate;310, round block;311, support table;4, threaded sleeve;5, threaded rod;6, elastic seat;7, fixing bolt;8, support plate;9, sliding slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. In order to understand the technical contents of the utility model more clearly, specific embodiments are shown and described below with reference to the accompanying drawings. In the present disclosure, various aspects of the utility model are described with reference to the accompanying drawings, and many embodiments are shown. It should be understood that the above-mentioned various concepts and embodiments, as well as those concepts and embodiments described in more detail below, can be implemented in any one of many ways. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0021] As shown in the accompanying Figure 1 to the accompanying Figure 5 : the embodiment provides a special fixture for hunting gun bullet cup trace inspection, including microscope 1, one side of microscope 1 is provided with object table 2, the top of object table 2 is provided with intermittent motion structure 3, the top of intermittent motion structure 3 is fixedly connected with three threaded sleeves 4, the inner cavity of threaded sleeve 4 is threadedly connected with threaded rod 5, and threaded rod 5 extends to the outside of threaded sleeve 4 and is fixedly connected with elastic seat 6.

[0022] The intermittent motion structure 3 comprises a base 31 located on the top of the object table 2, a round rod 32 rotatably connected at the center of the top of the base 31, an adjusting frame 33 sleeved on the surface of the round rod 32, three adaptive grooves one 34 formed on the surface of the adjusting frame 33, three adaptive grooves two 35 formed on the surface of the adjusting frame 33, the adaptive grooves one 34 and the adaptive grooves two 35 being alternately distributed, four vertical plates 36 equally spaced and annularly distributed fixedly connected to the top of the base 31, a motor 37 fixedly connected to one side of the rear vertical plate 36, a rotating plate 38 fixedly connected to the output shaft of the motor 37, an adjusting plate 39 fixedly connected to the bottom of one side of the rotating plate 38, the adjusting plate 39 being adapted to the adaptive grooves one 34, a round block 310 fixedly connected to the top of one side of the rotating plate 38, the round block 310 being adapted to the adaptive grooves two 35, and a support table 311 fixedly connected to the top end of the round rod 32 and fixedly connected to the threaded sleeve 4.

[0023] Specifically, the sizes of the three threaded sleeves 4 are different, and the sizes of the three threaded sleeves 4 are adapted to the sizes of the corresponding threaded rods 5 and the elastic seats 6.

[0024] In this embodiment, the sizes of the threaded sleeves 4 can be set to position a plurality of different types of elastic seats 6, thereby achieving the purpose of placing a plurality of types of elastic cups.

[0025] Specifically, four fixing bolts 7 are arranged through the top of the base 31, and the bottom ends of the fixing bolts 7 penetrate into the inner cavity of the object table 2.

[0026] In this embodiment, the fixing bolts 7 are arranged to install and position the base 31, thereby facilitating subsequent disassembly of the base 31.

[0027] Specifically, the motor 37 is fixedly connected to a support plate 8, and one side of the support plate 8 is fixedly connected to the vertical plate 36.

[0028] In this embodiment, the support plate 8 is arranged to support the motor 37, thereby improving the stability of the motor 37.

[0029] Specifically, a sliding groove 9 is formed in the bottom of the support table 311, and the top of the vertical plate 36 extends into the inner cavity of the sliding groove 9 and is slidingly connected to the sliding groove 9.

[0030] In this embodiment, when the round rod 32 drives the support table 311 to rotate, the vertical plate 36 slides in the inner cavity of the sliding groove 9, thereby supporting the support table 311.

[0031] The working principle and use process of the utility model: when using, the different specifications of the elastic seat 6 are rotated to the inner cavity of the suitable threaded sleeve 4 by the threaded rod 5, the positioning effect of the elastic seat 6 is played, the elastic cup is placed in the inner cavity of the corresponding size elastic seat 6, the elastic cup in the inner cavity of the elastic seat 6 is tested by the microscope 1, the process avoids the clamping of the elastic cup by the clamp, the appearance of the elastic cup is not affected, then the motor 37 can be started, the output shaft of the motor 37 drives the rotating plate 38 to rotate, the rotating plate 38 drives the adjusting plate 39 to move in the inner cavity of the adaptive groove one 34, and when the adjusting plate 39 is away from the inner cavity of the adaptive groove one 34, the rotating plate 38 will drive the circular block 310 to move in the inner cavity of the adaptive groove two 35, and enter the inner cavity of the adaptive groove two 35 and interact with the adaptive groove two 35, and then under the cooperation of the adjusting plate 39 and the circular block 310, the circular rod 32 and the adjusting frame 33 can be driven to rotate, when the rotating plate 38 rotates one circle, the circular rod 32 will drive the support table 311 to rotate 120 degrees, so that another elastic seat 6 rotates to the lens below the microscope 1, and then another elastic cup is conveniently tested.

[0032] It should be noted that the relative terms, such as first and second, and the like, are used herein solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions.

[0033] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art of the utility model can make various changes and decorations without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model is defined by the claims.

Claims

1. A special fixture for shotgun cartridge case evidence marking inspection, comprising a microscope (1), characterized in that: One side of the microscope (1) is provided with a stage (2), the top of the stage (2) is provided with an intermittent motion structure (3), the top of the intermittent motion structure (3) is fixedly connected with three threaded sleeves (4), the inner cavity of the threaded sleeve (4) is threadedly connected with a threaded rod (5), the top end of the threaded rod (5) extends to the outside of the threaded sleeve (4) and is fixedly connected with a spring seat (6); The intermittent motion structure (3) comprises a base (31) located on the top of the stage (2), a circular rod (32) rotatably connected to the center of the top of the base (31), an adjusting frame (33) sleeved on the surface of the circular rod (32), three adaptive grooves (34) formed in the surface of the adjusting frame (33), three adaptive grooves (35) formed in the surface of the adjusting frame (33), the adaptive grooves (34) and the adaptive grooves (35) being alternately distributed, four vertical plates (36) fixedly connected to the top of the base (31) and arranged in a ring shape at equal intervals, a motor (37) fixedly connected to one side of the rear vertical plate (36), a rotating plate (38) fixedly connected to the output shaft of the motor (37), an adjusting plate (39) fixedly connected to the bottom of one side of the rotating plate (38), the adjusting plate (39) being adapted to the adaptive grooves (34), a circular block (310) fixedly connected to the top of one side of the rotating plate (38), the circular block (310) being adapted to the adaptive grooves (35), and a support table (311) fixedly connected to the top end of the circular rod (32).

2. A special fixture for the trace examination of shotgun shell wad marks according to claim 1, characterized in that: The three threaded sleeves (4) have different sizes, and the three threaded sleeves (4) are adapted in size to the corresponding threaded rods (5) and spring seats (6).

3. A special fixture for the examination of the traces of shotgun cartridges according to claim 1, characterized in that: Four fixing bolts (7) are arranged through the top of the base (31), and the bottom ends of the fixing bolts (7) extend into the inner cavity of the stage (2).

4. The special fixture for the trace inspection of the shot cup marks of the hunting gun cartridge according to claim 1, characterized in that: The bottom of the motor (37) is fixedly connected with a support plate (8), and one side of the support plate (8) is fixedly connected with the vertical plate (36).

5. The special fixture for the trace inspection of the shotgun shell cup marks according to claim 1, characterized in that: The bottom of the support table (311) is provided with a sliding groove (9), and the top of the vertical plate (36) extends into the inner cavity of the sliding groove (9) and is slidably connected with the sliding groove (9). The bottom of the support table (311) is provided with a sliding groove (9), and the top of the vertical plate (36) extends into the inner cavity of the sliding groove (9) and is slidably connected with the sliding groove (9).

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