Welding positioning device and method for machine gun dustproof protection plate of remote control weapon station

Abstract

The invention provides a welding positioning device for a machine gun dustproof protection plate of a remote control weapon station, the machine gun dustproof protection plate comprises a first wall plate and a second wall plate, and two ends of the second wall plate are respectively provided with a supporting sheet; the welding positioning device comprises a bottom plate, a lower positioning plate, a left positioning plate and a right positioning plate; the left positioning plate and the right positioning plate are arranged in parallel; the lower positioning plate is positioned at the rear ends of the left positioning plate and the right positioning plate; a pressing assembly is arranged on the lower positioning plate; a left L-shaped positioning plate is arranged on the left positioning plate, a right L-shaped positioning plate is arranged on the right positioning plate, and the left L-shaped positioning plate and the right L-shaped positioning plate are used for fixing the two supporting sheets. According to the designed welding positioning device, traditional manual fixing of parts of the machine gun dustproof protection plate is replaced, and the situation that when a workpiece is manually positioned, high-temperature welding spatter is generated, and the personal injury to a welding bench worker is caused is avoided. And the welding positioning device can be used for quickly and accurately positioning the dust-proof guard plate parts of the machine gun, so that the production efficiency and the qualified rate of the dust-proof guard plate of the machine gun are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of welding tooling, and in particular relates to a welding positioning device and method for a dustproof guard plate of a machine gun of a remote-controlled weapon station. Background Art

[0002] A remote weapon station is a system equipped with weapons, which is widely used in the military and security fields. The machine gun dust shield is an important part of the machine gun protection device. It is designed according to the machine gun protection structure to prevent dust and rain from damaging the machine gun and thus extend the service life of the machine gun. The remote weapon station is equipped with a variety of weapons. Due to the compact space structure and strict weight requirements, the dust shield structure is small and compact, and the workpiece size requirements are high. The dust shield is processed and produced by welding, which has high requirements for welding quality and consistency.

[0003] At present, machine gun dust shields are assembled and welded manually. Due to their thin walls and light weight, welding fitters are required to manually position them during welding. When welding at high temperatures, spatter can easily burn the fitters' arms. In addition, the assembly production batches of weapon stations are large, and the corresponding demand for dust shields is large. The production efficiency and pass rate of manual assembly welding cannot meet the requirements. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the dust shield of a machine gun is manually assembled and welded, resulting in low safety for the operators, low production efficiency and low pass rate, and to provide a positioning device and method for welding the dust shield of a machine gun in a remote control weapon station.

[0005] To achieve the above purpose, the technical solution provided by the present invention is:

[0006] Provided is a welding positioning device for a machine gun dust shield of a remote control weapon station, the machine gun dust shield comprising a first wall plate and a second wall plate connected in an L shape, the first wall plate and the second wall plate having an intersection line, along the extension direction of the intersection line, two ends of the second wall plate are respectively provided with support pieces connecting the first wall plate and the second wall plate, and two ends of the first wall plate along the extension direction of the intersection line respectively have protrusions protruding from the support piece;

[0007] The welding positioning device comprises a bottom plate and a lower positioning plate, a left positioning plate and a right positioning plate installed on the bottom plate;

[0008] The left positioning plate and the right positioning plate are arranged in parallel, wherein the distance between the left positioning plate and the right positioning plate is equal to the width of the first wall plate, and the lower positioning plate is located at the rear ends of the left positioning plate and the right positioning plate;

[0009] The lower positioning plate is provided with a clamping assembly, which includes a positioning support plate, a pressure rod and a support seat;

[0010] The bottom surface of the support seat is fixedly connected to the lower positioning plate, the pressure rod is parallel to the left positioning plate, one end of the pressure rod is rotatably connected to the support seat, and the other end is vertically connected to the positioning support plate;

[0011] A left L-shaped positioning plate is provided on the left positioning plate, the two wall plates of the left L-shaped positioning plate are parallel to the positioning support plate, and a gap for clamping the support plate is provided between the right end and the left end of the positioning support plate; a right L-shaped positioning plate is provided on the right positioning plate, the two wall plates of the right L-shaped positioning plate are parallel to the positioning support plate, and a gap for clamping the support plate is provided between the left end and the right end of the positioning support plate;

[0012] The left L-shaped positioning plate and the right L-shaped positioning plate are respectively matched with two ends of the positioning support plate to respectively fix the two support pieces.

[0013] Furthermore, the right side of the left L-shaped positioning plate extends out of the right side of the left positioning plate to press the protrusion at the left end of the first wall panel; the left side of the right L-shaped positioning plate extends out of the left side of the right positioning plate to press the protrusion at the right end of the first wall panel.

[0014] Furthermore, the right side of the left L-shaped positioning plate extends out of the right side of the left positioning plate by 4 mm; the left side of the right L-shaped positioning plate extends out of the left side of the right positioning plate by 4 mm.

[0015] Furthermore, the support seat is arranged at the middle position of the lower positioning plate.

[0016] Furthermore, the distance between the left L-shaped positioning plate and the left end of the positioning support plate is the thickness of the support sheet; the distance between the right L-shaped positioning plate and the right end of the positioning support plate is the thickness of the support sheet.

[0017] Furthermore, the thickness of the left positioning plate and the right positioning plate are both less than or equal to the thickness of the first wall plate.

[0018] Furthermore, both ends of the positioning support plate have beveled surfaces, and the angle between the beveled surface and the top surface of the positioning support plate is 87°.

[0019] A welding positioning method for a dust shield of a machine gun of a remote-controlled weapon station is also provided, which is applied to a welding positioning device and comprises the following steps:

[0020] Step 1: Assemble the welding positioning device;

[0021] Step 2: Rotate the pressure rod in the direction of the back bottom plate, lift up the assembly welded parts of the positioning support plate and the pressure rod, and then insert the first wall plate into the groove formed by the left L-shaped positioning plate, the right L-shaped positioning plate and the bottom plate, so that the second wall plate contacts the positioning support plate;

[0022] Step 3, place the two support plates against the ends of the left L-shaped positioning plate and the right L-shaped positioning plate that are close to each other; rotate the pressure rod in the direction close to the bottom plate, so that the bottom of the positioning support plate presses the first wall plate, and the two ends press the support plates respectively;

[0023] Step 4, welding the fixed support piece at the contact points with the first wall plate and the second wall plate, and the weld is located on the outside of the support piece.

[0024] Furthermore, in step 3, the distance between one end of the support plate away from the lower positioning plate and one end of the left L-shaped positioning plate and the right L-shaped positioning plate at the corresponding position away from the lower positioning plate is 9 mm.

[0025] The advantages of the present invention are:

[0026] 1. The welding positioning device designed by the present invention replaces the traditional manual fixation of the machine gun dust shield parts, avoiding the situation where the high-temperature welding spatters cause personal injury to the welding fitter when the workpiece is manually positioned. At the same time, the welding positioning device can quickly and accurately position the machine gun dust shield parts, thereby improving the assembly speed and dimensional accuracy of the machine gun dust shield parts.

[0027] 2. The welding positioning device designed by the present invention is used for welding to improve the production efficiency and qualified rate of the machine gun dust shield. Compared with the original manual positioning welding method, the production efficiency is increased by 3 times, the number of operators involved in assembly welding is reduced, and the welding qualified rate is increased from 80% to more than 98%. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The features and advantages of the present invention will become more readily understood through the following description with reference to the accompanying drawings, which are not drawn to scale and in which some features are exaggerated or minimized to show details of particular components:

[0029] Figure 1 2 is a schematic structural diagram of a dust shield for a machine gun component according to an embodiment of the present invention;

[0030] Figure 2 is a structural schematic diagram of a welding positioning device in an embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the assembly and positioning of the dust shield parts and the welding positioning device of the machine gun in the embodiment of the present invention.

[0032] In the figure: 1-bottom plate; 2-lower positioning plate; 3-left positioning plate; 4-first nut; 5-first bolt; 6-left L-shaped positioning plate; 7-first conical pin; 8-second nut; 9-second bolt; 10-positioning support plate; 11-pressure rod; 12-right L-shaped positioning plate; 13-third nut; 14-third bolt; 15-second conical pin; 16-right positioning plate; 17-fourth nut; 18-fourth bolt; 19-cylindrical pin shaft; 20-cotter pin; 21-support seat; 22-first wall plate; 23-left support plate; 24-right support plate; 25-second wall plate. DETAILED DESCRIPTION

[0033] The present invention will be described in detail below with reference to the accompanying drawings by means of exemplary embodiments of the present invention. It should be noted that the following detailed description of the present invention is only for the purpose of illustration, and is not intended to limit the present invention.

[0034] A welding positioning device for a machine gun dust shield of a remote control weapon station. The welding positioning device is used to quickly and accurately position the parts of the machine gun dust shield during the welding and assembly process.

[0035] like Figure 1 As shown, the machine gun dust shield includes a first wall plate 22 and a second wall plate 25 connected in an L shape. The first wall plate 22 and the second wall plate 25 have an intersection line. Along the extension direction of the intersection line, two ends of the second wall plate 25 are respectively provided with support pieces connecting the first wall plate 22 and the second wall plate 25. The first wall plate 22 has protrusions protruding from the support pieces at both ends along the extension direction of the intersection line. The support pieces include a left support piece 23 and a right support piece 24, both of which are sheet-like structures with right angles. The right angles of the inclined surfaces of the left support piece 23 and the right support piece 24 match the first wall plate 22 and the second wall plate 25, and are used to support the right-angled bent plate formed by the first wall plate 22 and the second wall plate 25 to increase its strength. The two right-angled sides of the left support piece 23 and the right support piece 24 are respectively welded to the first wall plate 22 and the second wall plate 25 to form a machine gun dust shield.

[0036] like Figure 2 As shown, the welding positioning device comprises a bottom plate 1 and a lower positioning plate 2, a left positioning plate 3 and a right positioning plate 16 installed on the bottom plate 1, and the bottom plate 1 is a base plate of the welding positioning device.

[0037] The left positioning plate 3 and the right positioning plate 16 are arranged in parallel, wherein the spacing between the left positioning plate 3 and the right positioning plate 16 is equal to the width of the first wall plate 22, and the lower positioning plate 2 is located at the rear ends of the left positioning plate 3 and the right positioning plate 16. The position dimension line of the lower positioning plate 2 is drawn on the bottom plate 1 by laser scribing, and the lower positioning plate 2 is spot welded firmly on the bottom plate 1. A clamping assembly is provided on the lower positioning plate 2, and the clamping assembly includes a positioning support plate 10, a pressure rod 11 and a support seat 21. The thickness of the left positioning plate 3 and the right positioning plate 16 are both less than or equal to the thickness of the first wall plate 22, so that the clamping assembly can be pressed preferentially on the first wall plate 22, thereby reliably and firmly fixing the machine gun guard plate.

[0038] The bottom surface of the support seat 21 is fixedly connected to the lower positioning plate 2, and the support seat 21 is fixed by electric welding at the middle position of the plane on the lower positioning plate 2 divided in the length direction. The positioning support plate 10 and the pressure rod 11 are both rectangular plate structures; the pressure rod 11 is parallel to the left positioning plate 3, and one end is provided with a through hole for installing the cylindrical pin shaft 19. The pressure rod 11 is rotatably connected to the support seat 21 through the cylindrical pin shaft 19, and the cotter pin 20 is inserted into the hole of the cylindrical pin shaft 19. The cotter pin 20 is a standard part with a model of Q / PH90-88-2.5×30. The other end is welded and fixedly connected to the middle part of the positioning support plate 10, and the positioning support plate 10 is parallel to the lower positioning plate 2.

[0039] The left positioning plate 3 is provided with a left L-shaped positioning plate 6, the two wall plates of the left L-shaped positioning plate 6 are parallel to the positioning support plate 10, and there is a gap between the right end and the left end of the positioning support plate 10 for clamping the left support piece 23; the right positioning plate 16 is provided with a right L-shaped positioning plate 12, the two wall plates of the right L-shaped positioning plate 12 are parallel to the positioning support plate 10, and there is a gap between the left end and the right end of the positioning support plate 10 for clamping the right support piece 24. The left L-shaped positioning plate 6 and the right L-shaped positioning plate 12 are respectively matched with the two ends of the positioning support plate 19 to fix the left support piece 23 and the right support piece 24 respectively, so that the left support piece 23 and the right support piece 24 are both vertical and attached to the first wall plate 22 and the second wall plate 25.

[0040] The right side of the left L-shaped positioning plate 6 extends out 4mm from the right side of the left positioning plate 3; the left side of the right L-shaped positioning plate 12 extends out 4mm from the left side of the right positioning plate 16, which is used to press the protrusions at both ends of the lower positioning plate, and enable the left L-shaped positioning plate 6 and the right positioning plate 16 to support and position the support plate at the corresponding positions.

[0041] There is a gap between the left L-shaped positioning plate 6 and the left end of the positioning support plate 10 for clamping the left support plate 23, and the gap is the thickness of the left support plate 23; there is a gap between the right L-shaped positioning plate 12 and the right end of the positioning support plate 10 for clamping the right support plate 24, and the gap is the thickness of the right support plate 24; the spacing between the left positioning plate 3 and the right positioning plate 16 is the width of the first wall panel 22.

[0042] The two ends of the positioning support plate 10 have chamfered surfaces respectively, and the angle between the chamfered surface and the top surface of the positioning support plate 10 is 87°, which makes it easy for the positioning support plate 10 to enter between the two support pieces to press the first wall plate 22 .

[0043] A welding positioning method for a dust shield of a machine gun of a remote control weapon station is also provided, which is applied to a welding positioning device and comprises the following steps:

[0044] Step 1: Assemble the welding positioning device.

[0045] In this embodiment, the assembly is performed in the following manner: Figure 2As shown, two bolt through holes and one conical pin through hole are symmetrically arranged on the left and right sides of the base plate 1; two bolt through holes and one conical pin through hole are respectively arranged on the left positioning plate 3 and the right positioning plate 16, which are consistent in relative position with the two bolt through holes and one conical pin through hole arranged on the left and right sides of the base plate 1; the left L-shaped positioning plate 6 and the right L-shaped positioning plate 12 are respectively arranged with a bolt through hole and a conical pin through hole, which are consistent in relative position with the conical pin through holes on the base plate 1, the left positioning plate 3, the right positioning plate 16 and one bolt through hole on the right side thereof.

[0046] Align the bolt through holes and conical pin through holes of the left positioning plate 3 with the bolt through holes and conical pin through holes on the left side of the base plate 1 respectively, fix the left end of the left positioning plate 3 on the base plate 1 by means of the first bolt 5 and the first nut 4, align the bolt through holes and conical pin through holes of the left L-shaped positioning plate 6 with the bolt through holes and conical pin through holes on the right side of the left positioning plate 3 respectively, fasten the right ends of the left L-shaped positioning plate 6 and the left positioning plate 3 to the bottom assembly by means of the second bolt 9 and the second nut 8, and then accurately position the left positioning plate 3 and the left L-shaped positioning plate 6 at the relative position on the left side of the base plate 1 by means of the first conical pin 7.

[0047] Align the bolt through holes and conical pin through holes of the right positioning plate 16 with the bolt through holes and conical pin through holes on the right side of the base plate 1, fix the left end of the right positioning plate 16 on the base plate 1 by means of the third bolt 14 and the third nut 13, align the bolt through holes and conical pin through holes of the right L-shaped positioning plate 12 with the bolt through holes and conical pin through holes on the right side of the right positioning plate 16, assemble and fasten the right end of the right positioning plate 16 and the right L-shaped positioning plate 12 with the base plate 1 by means of the fourth nut 17 and the fourth bolt 18, and then accurately position the right positioning plate 16 and the right L-shaped positioning plate 12 at the relative position on the right side of the base plate 11 by means of the second conical pin 15.

[0048] Among them, the above-mentioned bolts are all standard parts, model GB / T5781-2000-M8×30; the above-mentioned nuts are all standard parts, model GB / T56-1988-M8; the above-mentioned conical pins are all standard parts, model Q / PH90-88-4×18; and all components of the welding positioning device are made of high-quality carbon steel after quenching.

[0049] Step 2: Rotate the pressure rod 11 in the direction away from the bottom plate 1 to lift the assembly welded parts of the positioning support plate 10 and the pressure rod 11. After the positioning support plate 10 and the pressure rod 11 are lifted, the positioning support plate 10 and the pressure rod 11 can rotate around the cylindrical shaft pin 19 to move Figure 2 The first wall panel 22 of the middle right-angle bent plate is inserted into the groove formed by the left L-shaped positioning plate 6, the right L-shaped positioning plate 12 and the bottom plate 1. The three side edges of the first wall panel 22 are close to the left positioning plate 3, the right positioning plate 16 and the lower positioning plate 2 to fix the right-angle bent plate on the welding positioning device.

[0050] Step 3, such as Figure 3As shown, the left support piece 23 and the right support piece 24 are respectively placed against the ends of the left L-shaped positioning plate 6 and the right L-shaped positioning plate 12 which are close to each other, and are placed on the protruding portion of the first wall panel 22. The pressure rod 11 is rotated in the direction close to the bottom plate 1 so that the positioning support plate 10 presses the first wall panel 22. At the same time, the oblique cut surface of the positioning support plate 10 is used to cooperate with the left L-shaped positioning plate 6 and the right L-shaped positioning plate 12 to fix and clamp the left support piece 23 and the right support piece 24 so that the two right-angled sides of the left support piece 23 and the right support piece 24 are perpendicular and close to the first wall panel 22 and the second wall panel 25.

[0051] In this embodiment, the left support sheet 23 and the right support sheet 24 are fixed to the welding positioning device. Figure 3 As shown, the distance between the right end of the left support piece 23 and the right end of the left L-shaped positioning plate 6 is 9 mm, and the distance between the right end of the right support piece 24 and the right end of the right L-shaped positioning plate 12 is 9 mm, and a welding position is reserved.

[0052] Step 4, welding the fixed support plate at the contact points with the first wall plate 22 and the second wall plate 25, and the weld is located on the outside of the support plate, so that the machine gun guard plate will not interfere when installed on the machine gun.

[0053] Finally, it should be noted that the features mentioned and / or shown in the above description of the exemplary embodiments of the present invention may be combined in the same or similar manner into one or more other embodiments, combined with the features in other embodiments or substituted for the corresponding features in other implementations. The technical solutions obtained by these combinations or substitutions shall also be deemed to be included in the protection scope of the present invention.

Claims

1. A welding positioning device for a dustproof shield of a machine gun in a remote-controlled weapon station, characterized in that: The machine gun dust shield comprises a first wall plate and a second wall plate connected in an L shape, wherein the first wall plate and the second wall plate have an intersection line, and along the extension direction of the intersection line, two ends of the second wall plate are respectively provided with support pieces connecting the first wall plate and the second wall plate, and two ends of the first wall plate along the extension direction of the intersection line respectively have protrusions protruding from the support pieces; The welding positioning device comprises a bottom plate and a lower positioning plate, a left positioning plate and a right positioning plate installed on the bottom plate; The left positioning plate is arranged in parallel with the right positioning plate, wherein the distance between the left positioning plate and the right positioning plate is equal to the width of the first wall plate, and the lower positioning plate is located at the rear ends of the left positioning plate and the right positioning plate; The lower positioning plate is provided with a clamping assembly, which includes a positioning support plate, a pressure rod and a support seat; The bottom surface of the support seat is fixedly connected to the lower positioning plate, the pressure rod is parallel to the left positioning plate, one end of the pressure rod is rotatably connected to the support seat, and the other end is vertically connected to the positioning support plate; The left positioning plate is provided with a left L-shaped positioning plate, the two wall plates of the left L-shaped positioning plate are parallel to the positioning support plate, and a gap is provided between the right end and the left end of the positioning support plate for clamping the support sheet; the right positioning plate is provided with a right L-shaped positioning plate, the two wall plates of the right L-shaped positioning plate are parallel to the positioning support plate, and a gap is provided between the left end and the right end of the positioning support plate for clamping the support sheet; The left L-shaped positioning plate and the right L-shaped positioning plate are respectively matched with the two ends of the positioning support plate to respectively fix the two support pieces.

2. The welding positioning device according to claim 1, characterized in that: The right side of the left L-shaped positioning plate extends out of the right side of the left positioning plate to press the protrusion at the left end of the first wall panel; the left side of the right L-shaped positioning plate extends out of the left side of the right positioning plate to press the protrusion at the right end of the first wall panel.

3. The welding positioning device according to claim 2, characterized in that: The right side of the left L-shaped positioning plate extends out from the right side of the left positioning plate by 4 mm; the left side of the right L-shaped positioning plate extends out from the left side of the right positioning plate by 4 mm.

4. The welding positioning device according to claim 1, characterized in that: The support seat is arranged at the middle position of the lower positioning plate.

5. The welding positioning device according to claim 1, characterized in that: The distance between the left L-shaped positioning plate and the left end of the positioning support plate is the thickness of the support plate; the distance between the right L-shaped positioning plate and the right end of the positioning support plate is the thickness of the support plate.

6. The welding positioning device according to claim 1, characterized in that: The thickness of the left positioning plate and the right positioning plate are both less than or equal to the thickness of the first wall plate.

7. The welding positioning device according to claim 1, characterized in that: The two ends of the positioning support plate are respectively provided with chamfered surfaces, and the angle between the chamfered surfaces and the top surface of the positioning support plate is 87°.

8. A welding positioning method for a dustproof shield of a machine gun in a remote-controlled weapon station, characterized in that: The welding positioning device applied to claims 1-7 comprises the following steps: Step 1: Assemble the welding positioning device; Step 2: Rotate the pressure rod in the direction away from the bottom plate, lift up the assembly welded parts of the positioning support plate and the pressure rod, and then insert the first wall plate into the groove formed by the left L-shaped positioning plate, the right L-shaped positioning plate and the bottom plate, so that the second wall plate contacts the positioning support plate; Step 3, respectively placing the two support plates against the ends of the left L-shaped positioning plate and the right L-shaped positioning plate that are close to each other; rotating the pressing rod in a direction close to the bottom plate, so that the bottom of the positioning support plate presses against the first wall plate, and the two ends press against the support plates respectively; Step 4: welding the fixed support piece at the contact points with the first wall plate and the second wall plate, respectively, with the weld being located on the outside of the support piece.

9. The welding positioning method according to claim 8, characterized in that: In step 3, the distance between one end of the support plate away from the lower positioning plate and one end of the left L-shaped positioning plate and the right L-shaped positioning plate at the corresponding position away from the lower positioning plate is 9 mm.

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