CN215881466U

CN215881466U - Frock that hoop combines before wood is protected to assembly AK series rifle

Info

Publication number: CN215881466U
Application number: CN202121957859.3U
Authority: CN
Inventors: 冯建铭; 宋有龙
Original assignee: Fujian Ordnance Equipment Co ltd
Current assignee: Fujian Ordnance Equipment Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-02-22
Anticipated expiration: 2031-08-20

Abstract

The utility model provides a frock that hoop combined before wood was protected to assembly AK series rifle, its main points are: the wood guard clamp comprises a main body and a propelling mechanism, wherein a positioning block, a reference surface and a positioning base are arranged on one side of the main body, a guide rail is arranged on the other side of the main body, the vertical surface of the positioning base on the positioning base is used for positioning and binding a wood guard front hoop, the positioning block and the reference surface are used for clamping and binding the wood guard front hoop, the propelling mechanism is fixed on the guide rail and moves along the guide rail, the front end of the propelling mechanism is a tip, the head of the tip is conical, and the conical degree of the tip is matched with the design conical degree of a wood guard front hoop pin expansion hole. The utility model has the beneficial effects that: the structure is simple, and the maintenance is convenient; the positioning mode and the mature transmission structure of the original tool cushion seat are also used, so that the use reliability is ensured, the operation method is simplified, and the labor intensity is reduced; meanwhile, the front guard wood hoop can be effectively combined in the assembling process, the expansion degree and the combination tightness of the front guard wood hoop pin meet the technological requirements, the assembling efficiency and the qualified rate are obviously improved, and the quality is stable.

Description

Frock that hoop combines before wood is protected to assembly AK series rifle

Technical Field

The utility model relates to the field of firearm production, in particular to a tool combined with a front hoop for assembling AK series rifle wood guard.

Background

The wood guard is an important part for preventing a user from directly contacting the heating gun barrel, and a front hoop of the wood guard is required to be combined for fixing the wood guard. The AK series rifle wood protection front hoop combination 6 is shown in figure 1 and consists of a wood protection front hoop 61 and a wood protection front hoop pin 62. In order to ensure the reliability of the wood guard front hoop connection, the wood guard front hoop pin expanding hole 622 needs to be expanded as shown in fig. 2 to form a trumpet shape with a large outside and a small inside, so as to ensure that the wood guard front hoop pin 62 does not fall off the wood guard front hoop 61 while flexibly rotating in the wood guard front hoop pin hole 611.

In the conventional tool for expanding the wood-protection front hoop pin 62, as shown in fig. 3, a base 71 and a fixed base 72 are arranged on a pad 7, and an iron hammer and a punch are matched to expand a wood-protection front hoop pin expansion hole 622. When the mat base is used for assembling the wood protection front hoop combination 6, as shown in fig. 4, the wood protection front hoop pin 62 is firstly inserted into the wood protection front hoop pin hole 611 according to the position shown in fig. 1, then the wood protection front hoop is placed on the base 71, the side back surface 612 of the wood protection front hoop is tightly attached to the front end surface 711 of the base, the top surface 613 of the wood protection front hoop is tightly attached to the right end surface 712 of the base, the wood protection front hoop pin handle 621 is tightly attached to the fixed base surface 72, then an operator puts the tip of the punch 8 into the wood protection front hoop pin expansion hole 622, strikes the tail end of the punch 8 by the hammer 9, and expands the wood protection front hoop pin expansion hole 622 to complete the assembly. The problem that the front wood-protecting hoop pin is loosened or blocked due to insufficient or too much expansion of the front wood-protecting hoop pin is easily caused by the influence of personal factors of an operator because the expansion knocking force of the front wood-protecting hoop pin 62 is difficult to control, so that the processing efficiency is low, the quality of a finished product is unstable, and the rework rate and the rejection rate are high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tool for assembling AK series rifle wood protection front hoop combination, which has the advantages of simple structure, reliable use and simple and convenient operation, can effectively ensure that the wood protection front hoop is combined in the assembling process, the expansion degree and the tightness of a wood protection front hoop pin meet the process requirements, and obviously improves the assembling efficiency and the qualified rate.

The technical scheme adopted by the utility model is a tool for assembling a wood protection front hoop of an AK series rifle, and the key points of the tool are as follows: the wood guard clamp comprises a main body and a propelling mechanism, wherein a positioning block, a reference surface and a positioning base are arranged on one side of the main body, a guide rail is arranged on the other side of the main body, the vertical surface of the positioning base on the positioning base is used for positioning and binding a wood guard front hoop, the positioning block and the reference surface are used for clamping and binding the wood guard front hoop, the propelling mechanism is fixed on the guide rail and moves along the guide rail, the front end of the propelling mechanism is a tip, the head of the tip is conical, and the conical degree of the tip is matched with the design conical degree of a wood guard front hoop pin expansion hole.

The utility model designs a stable propelling mechanism which is fixed on the main body together with the positioning block and the reference surface, so that the deformation of the center to the wood-protection front hoop pin expansion hole is gradual, the deformation process of the wood-protection front hoop pin expansion hole is controllable, the assembly operation is simplified, and the stability of the product quality is ensured. Rather than relying on the impulsive force of a hammer as in the prior art, the quality is not guaranteed depending on the experience and strength of an operator.

The shape and the size of the vertical surface of the positioning base are matched with the groove on the back surface of the wood protection front hoop to position the wood protection front hoop. The vertical surface of the positioning base has the same function as the front end surface of the base in the prior art and is used for positioning the wood protection front hoop.

When in use, the reference surface is contacted with the front hoop pin handle of the wood protection. The reference surface is a machined fastening surface which functions in the same way as the prior art fastening base surface.

The propulsion mechanism consists of a hand wheel, a driving shaft and a sliding plate, the middle part of the guide rail is fixed with a driving seat, and the center of the guide rail is provided with a threaded hole; the driving shaft is divided into a screw part, a transmission part, a connecting part, a positioning part and a fixing part, wherein the surface of the screw part is processed with threads to form a spiral transmission structure with the driving seat; the middle part of the sliding plate is provided with a cavity capable of containing the driving seat and the screw part, the sliding plate is sleeved outside the driving seat, the front end of the sliding plate is provided with a top fixing hole, and the rear end of the sliding plate is a semicircular groove matched with the driving shaft.

The rotation of the hand wheel is used as the power for deforming the expanding hole of the wood protection front hoop pin, the large diameter of the hand wheel plays a role in saving power, and the deformation process of the expanding hole of the wood protection front hoop pin is stable and easy to control.

The height of the guide rail is not lower than that of the sliding plate, and a cover plate is fixed on the upper surface of the guide rail. The cover plate and the guide rail play a role in guiding the sliding plate; meanwhile, the inside of the propelling mechanism can be kept clean, so that the faults are reduced, and the service life of the transmission part is prolonged.

The vertical surface of the positioning base is attached to the back surface of the wood protection front hoop, and the reference surface is attached to the wood protection front hoop pin handle. The accurate positioning and the stable fixed surface are ensured during processing.

The upper surface of the sliding plate of the propelling mechanism is provided with a scribed line for indicating the moving distance. The scribed lines are used as a movable scale, and the deformation of the expanding holes of the hoop pins before the wood protection can be clearly controlled through the scribed lines.

The utility model has the beneficial effects that: the structure is simple, and the maintenance is convenient; the positioning mode and the mature transmission structure of the original tool cushion seat are also used, so that the use reliability is ensured, the operation method is simplified, and the labor intensity is reduced; meanwhile, the front guard wood hoop can be effectively combined in the assembling process, the expansion degree and the combination tightness of the front guard wood hoop pin meet the technological requirements, the assembling efficiency and the qualified rate are obviously improved, and the quality is stable.

Drawings

FIG. 1 is a schematic structural view of a front hoop of a wood guard before expansion

FIG. 2 is a schematic view of the structure of the wood guard after the front hoop is combined and expanded

FIG. 3 is a schematic structural diagram of a conventional tool

FIG. 4 is a schematic view of a conventional tool in use

FIG. 5 is a schematic structural diagram of the present invention

FIG. 6 is a schematic view of the structure of the main body of the present invention

FIG. 7 is a schematic structural view of a handwheel of the present invention

FIG. 8 is a schematic view of the structure of the driving shaft of the present invention

FIG. 9 is a schematic view of the structure of the skateboard of the present invention, which is a bottom view thereof in use

FIG. 10 is a view showing a state of use of the slide plate with the reticle

FIG. 11 is a schematic view of the present invention in use

Wherein: 1 main body 11 positioning block 12 datum plane 13 positioning base 131 vertical plane 14 guide rail 15 drive seat 2 handwheel 21 handwheel keyway 3 drive shaft 31 lead screw part 32 drive part 321 keyway 33 connecting part 34 fixed part 4 slide 41 tip 42 cavity 43 semi-circular groove 5 cover 6 wood guard front hoop combination 61 wood guard front hoop 611 wood guard front hoop pin hole 612 wood guard front hoop back 613 wood guard front hoop top surface 62 wood guard front hoop pin 621 wood guard front hoop pin handle 622 wood guard front hoop pin expansion hole 7 pad seat 711 base front end surface 712 base right end surface 72 fixed base 8 punch 9 hammer.

Detailed Description

The following examples, which are set forth to provide those of ordinary skill in the art with a more complete understanding of the present invention, are incorporated by reference into the present specification as if fully set forth herein and are not to be construed as limiting in any way.

As shown in figures 5-11, the utility model is a tool for assembling AK series rifle wood guard front hoop combination, which is used for expanding a wood guard front hoop pin expansion hole as shown in figures 1 and 2, and comprises a main body 1 and a propulsion mechanism, wherein one side of the main body 1 is provided with a positioning block 11, a reference surface 12 and a positioning base 13, the other side is provided with a guide rail 14, a positioning base vertical surface 131 on the positioning base 13 is used for positioning the wood guard front hoop combination 6, the positioning block 11 and the reference surface 12 are used for clamping the wood guard front hoop combination, the propulsion mechanism is fixed on the guide rail and moves along the guide rail, the front end of the propulsion mechanism is a tip, the head of the tip is conical, and the conical degree of the tip is adapted to the design conical degree of a wood guard front hoop pin hole. The propulsion mechanism consists of a hand wheel 2, a driving shaft 3 and a sliding plate 4, a driving seat 15 is fixed in the middle of the guide rail 14, and a threaded hole is processed in the center of the driving seat; the driving shaft 3 is divided into a screw part 31, a transmission part 32, a connecting part 33, a positioning part 34 and a fixing part 35, wherein the surface of the screw part 31 is processed with threads to form a spiral transmission structure with the driving seat 15, the transmission part 32 is processed with a key slot to be connected with the hand wheel 2 through a key, the connecting part 33 is positioned in a semicircular groove 43 of the sliding plate, and the surface of the fixing part 35 is processed with threads to be matched with a nut, so that the hand wheel 2 and the sliding plate 4 are fixed on the driving shaft 3; the middle part of the sliding plate is provided with a cavity 42 which can contain the driving seat and the screw part, the sliding plate is sleeved outside the driving seat, the front end of the sliding plate 4 is provided with a fixing hole of a tip, and the rear end of the sliding plate is provided with a semicircular groove 43 matched with the driving shaft.

The detailed description is made with reference to the drawings: as shown in fig. 5 and 6, the main body 1 is a flat plate, a positioning block 11, a reference surface 12 and a positioning base 13 are fixed on one side of the upper surface of the main body, the reference surface and the positioning block are integrated, and the reference surface 12 is in contact with the wood guard front hoop pin handle during use. The reference surface is a machined fastening surface that functions in the same manner as the prior art fastening base 72. The positioning base 13 is of an L-shaped structure, the vertical surface 131 of the positioning base is used for positioning the wood protection front hoop combination 6, and the shape and the size of the vertical surface 131 of the positioning base are matched with the groove on the back 612 of the wood protection front hoop to position the wood protection front hoop. The vertical surface of the positioning base has the same function as the front end surface 711 of the base in the prior art and is used for positioning the wood protection front hoop. The horizontal plane of the positioning base 13 which is of an L-shaped structure is used for being matched with a wood protection front hoop top surface 613 combined with the positioning wood protection front hoop, when the wood protection front hoop is used, the vertical surface of the positioning base is attached to the back surface of the wood protection front hoop, the reference surface is attached to a wood protection front hoop pin handle, and the center line of the center is overlapped with the center line of the wood protection front hoop pin. The other side of the main body is provided with guide rails 14, the two guide rails are symmetrically distributed, and a driving seat 15 is arranged at the bottom of the two guide rails 14. The driving seat 15 is processed with the internal thread, constitutes the helical drive structure with drive shaft 3, turns into the linear motion of self with the rotation of drive shaft 3, and the height of guide rail is not less than the slide, and slide 4 is installed in the inboard of guide rail 14, and the guide rail up end passes through the bolt to be connected with apron 5, and the apron is dustproof except that, still has the suppression effect to the slide, can prevent that the slide from upwards deviating from, and the apron plays the guide effect with the guide rail together to the removal of slide 4.

Fig. 7 is a schematic structural view of the hand wheel 2. The handwheel 2 is provided with a handwheel key slot 21 for connecting with the driving shaft 3 by key so as to drive the driving shaft 3 to rotate.

Fig. 8 is a schematic view of the structure of the drive shaft 3. The driving shaft 3 is divided into a screw portion 31, a transmission portion 32, a connecting portion 33, a positioning portion 34, and a fixing portion 35. The screw part 31 is provided with threads and forms a spiral transmission structure with the driving seat 15; the transmission part 32 is provided with a key slot 321 for assembling the hand wheel 2 and transmitting rotation; the connecting part 33 is used for assembling the sliding plate 4 and positioning the sliding plate by the positioning part 34; the fixing portion 35 is used for mounting a nut, so as to fix the hand wheel 2 and the sliding plate 4 on the driving shaft 3 and fix the driving shaft and the driving seat.

Fig. 9 is a schematic structural view of the slide 4. The top 41 of the front end of the sliding plate is used for expanding the expanding hole 622 of the wood-protection front hoop pin, and the top 41 is connected with the sliding plate through threads and can be replaced when the size of the expanding hole of the wood-protection front hoop pin changes or the tip of the top 41 is worn. The middle cavity 42 is a space for the screw portion 31 of the driving shaft 3 to be combined with the driving socket 15, and the rear semicircular groove 43 is a portion to be combined with the connecting portion 33.

As shown in fig. 10, the upper surface of the slide plate 4 of the propulsion mechanism has a scribe line indicating the moving distance. The scribed lines are used as a movable scale, and the deformation of the expanding holes of the hoop pins before the wood protection can be clearly controlled through the scribed lines. The limit stroke of the propelling mechanism is 30mm, the working stroke is about 20mm, and the stroke of the propelling mechanism reaches 7mm when the sliding plate appears, so that the stroke of the sliding plate scribed line is 7-30 mm.

Fig. 11 is a schematic view showing a state of the front hoop used in combination for assembling the fender. Firstly, installing and positioning the wood protection front hoop combination 6, firstly inserting the wood protection front hoop pin 62 into the wood protection front hoop pin hole 611 according to the position shown in figure 1; the timber guard front hoop combination 6 is then placed on the locating base 13, ensuring that the locating base vertical face 131 abuts the timber guard front hoop back face 612 and allowing the timber guard front hoop pin handle 621 to abut the datum face 12. After the positioning is finished, the hand wheel 2 is rotated, the rotation is transmitted to the driving shaft 3 through the hand wheel, the sliding plate 4 is driven to do linear motion by virtue of a spiral transmission structure formed by the driving shaft 3 and the driving seat 15, the tip of the tip 41 enters the expanding hole 622 of the front hoop pin of the wood guard, and the tip 41 and the reference surface 12 fix the front hoop pin 62 of the wood guard at the moment. After the wood guard front hoop pin 62 is fixed, the handle wheel 2 rotates by a proper angle to expand the wood guard front hoop pin expansion hole 622, and the assembly of the wood guard front hoop combination 6 is completed.

Claims

1. The utility model provides a frock that hoop combines before wood is protected to assembly AK series rifle, characterized by: the wood guard positioning mechanism comprises a main body (1) and a propelling mechanism, a positioning block (11) is arranged on one side of the main body (1), a reference surface (12) and a positioning base (13), a guide rail (14) is arranged on the other side of the main body (1), a vertical surface (131) of the positioning base on the positioning base (13) is used for positioning a wood guard front hoop combination (6), the positioning block (11) and the reference surface (12) are used for clamping the wood guard front hoop combination, the propelling mechanism is fixed on the guide rail and moves along the guide rail, the front end of the propelling mechanism is a tip, the head of the tip is conical, and the conical degree of the tip is adapted to the design conical degree of a wood guard front hoop pin expansion hole.

2. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 1, wherein the tool comprises: the shape and the size of the vertical surface (131) of the positioning base are matched with the groove on the back surface (612) of the wood protection front hoop so as to position the wood protection front hoop.

3. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 1, wherein the tool comprises: when in use, the reference surface (12) is contacted with the front hoop pin handle of the wood guard, and the central axis of the tip is parallel to the central line of the reference surface (12).

4. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 1, wherein the tool comprises: the propulsion mechanism consists of a hand wheel (2), a driving shaft (3) and a sliding plate (4), a driving seat (15) is fixed in the middle of the guide rail (14), and a threaded hole is machined in the center of the driving seat; the driving shaft (3) is divided into a screw rod part (31), a transmission part (32), a connecting part (33), a positioning part (34) and a fixing part (35), wherein the surface of the screw rod part (31) is processed with threads to form a spiral transmission structure with the driving seat (15), the transmission part (32) is processed with a key slot and is connected with the hand wheel (2) through a key, the connecting part (33) is positioned in a semicircular groove (43) of the sliding plate, and the surface processed threads of the fixing part (35) are matched with a nut, so that the hand wheel (2) and the sliding plate (4) are fixed on the driving shaft (3); the middle part of the sliding plate is provided with a cavity (42) which can contain the driving seat (15) and the screw part (31), the sliding plate is sleeved outside the driving seat, the front end of the sliding plate (4) is provided with a fixing hole of a tip, and the rear end of the sliding plate is provided with a semicircular groove (43) matched with the driving shaft.

5. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 4, wherein the tool comprises: the height of the guide rail is not lower than that of the sliding plate, and a cover plate (5) is fixed on the upper surface of the guide rail.

6. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 1, wherein the tool comprises: the vertical surface (131) of the positioning base is attached to the back surface (612) of the wood protection front hoop, and the reference surface (12) is attached to the pin handle (621) of the wood protection front hoop.

7. The tool for assembling the wood-protecting front hoop combination of the AK series rifle as claimed in claim 4, wherein the tool comprises: the upper surface of the sliding plate of the propelling mechanism is provided with a scribed line for indicating the moving distance.