Bulletproof plate butt welding structure and staggered protection method

Abstract

The invention relates to the technical field of bulletproof plate welding, and discloses a bulletproof plate butt welding structure which comprises a to-be-machined unit to be welded and machined and a welding pre-positioning mechanism arranged on the surface of the to-be-machined unit to provide pre-positioning for the to-be-machined unit, and the welding pre-positioning mechanism comprises a heat dissipation bottom pad unit located under the to-be-machined unit. The electromagnetic clamping units are arranged on the upper side and the lower side of the unit to be machined, and the connecting units are arranged on the outer sides of the electromagnetic clamping units. According to the bulletproof plate butt welding structure and the staggered protection method, the to-be-machined unit and the welding pre-positioning mechanism are arranged, and on the basis that the welding pre-positioning mechanism is used for accurately positioning the to-be-machined unit, the process scheme that discontinuous welding spots are arranged at weld joint notches and staggered compensation strips are arranged on the same side in a staggered mode is adopted; the polishing workload of a welding seam area can be effectively reduced, and the phenomenon of concentration of welding stress is remarkably reduced.

Description

Technical Field

[0001] This invention relates to the field of bulletproof plate welding technology, specifically to the butt welding structure of bulletproof plates and the method of staggered protection. Background Technology

[0002] During the process of modifying a car into a bulletproof vehicle, the connection between two bulletproof plates is usually achieved by welding. Since welding can affect the bulletproof performance of the surrounding area, the connection line between the two bulletproof plates is usually reinforced with staggered strips. The processing method is generally to use a break weld at the weld seam. After the connection line is welded, the welded area needs to be ground smooth, and then staggered compensation strips are spot welded to the back of the weld seam for reinforcement.

[0003] However, this method requires fine grinding of the entire weld joint and weld seam after welding, which is labor-intensive and time-consuming. Furthermore, the weld joint is located on the same uninterrupted weld seam, resulting in excessive stress concentration. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a butt-welding structure for bulletproof plates and a staggered protection method, thus solving the problems mentioned in the background.

[0005] This invention provides the following technical solution: a bulletproof plate butt welding structure, comprising: The unit to be processed is to be welded. A welding pre-positioning mechanism is disposed on the surface of the unit to be processed to provide pre-positioning for the unit to be processed, and the welding pre-positioning mechanism includes: A heat dissipation pad unit located directly below the unit to be processed is used to seal and dissipate heat at the bottom of the joint. Electromagnetic clamping units are positioned on the upper and lower sides of the unit to be processed to pre-assemble and position the unit; and, A connecting unit is provided on the outside of the electromagnetic clamping unit to assist the electromagnetic clamping unit in pre-positioning the unit to be processed.

[0006] Preferably, the processing unit includes: The weld notch, specifically a U-shaped weld notch, increases the local weld accumulation area to ensure weld strength; and, The staggered compensation strips located on the side of the weld notch are used to compensate for the elasticity between the first and second bulletproof plates. The heat dissipation pad unit includes: A ceramic gasket located below the weld notch and the staggered compensation strip to prevent molten metal from flowing into the bottom from the weld notch during welding; The electromagnetic clamping unit includes: Electromagnets located on both sides of the ceramic pad generate electromagnetic force to attract the armature block; A first fixed anti-slip pad is fixedly attached to the surface of the electromagnet to increase the friction of the electromagnet surface; and, An armature block located above the electromagnet is used to clamp the first or second bulletproof plate in conjunction with the electromagnet.

[0007] Preferably, the processing unit further includes: The first and second bulletproof plates are fixedly welded to the bottom of both ends of the staggered compensation strip. During welding, one side of the first bulletproof plate is in contact with one side of the second bulletproof plate.

[0008] Preferably, the processing unit further includes: The butt joint between the first bulletproof plate and the second bulletproof plate has multiple weld notches and multiple staggered compensation strips. The multiple weld notches are all opened inside the butt joint and are evenly distributed. The staggered compensation strips are intermittently distributed between every two adjacent weld notches, so as to weld the first bulletproof plate and the second bulletproof plate together through the weld notches.

[0009] Preferably, the heat dissipation pad unit further includes: A flow-guiding strip is located at the bottom of the first and second bulletproof plates, and the upper surface of the flow-guiding strip is fixedly connected to the lower surface of the ceramic gasket, so as to support the ceramic gasket through the flow-guiding strip; and, A heat exchange channel is formed inside the guide bar to introduce cold water to dissipate heat from the ceramic gasket.

[0010] Preferably, the heat dissipation pad unit further includes: An overflow-proof flame-retardant pad is fixedly connected to the upper surface of the flow guide bar, and the overflow-proof flame-retardant pad surrounds the ceramic gasket to absorb molten metal leaking from between the ceramic gasket and the joint; and, The condensate drain joints are fixedly connected to both ends of the heat exchange channel to ensure the external connection of the heat exchange channel.

[0011] Preferably, the electromagnetic clamping unit further includes: The upper sleeve is fixedly fitted onto the surface of the armature block; A second fixed anti-slip pad is fixedly attached to the surface of the armature block to increase the friction of the armature block surface; and, The lower housing is fixedly sleeved onto the surface of the electromagnet.

[0012] Preferably, the electromagnetic clamping unit further includes: A horizontal connecting frame is fixedly fitted onto the surface of the lower housing, and there are four lower housings in total. Each pair of lower housings forms a group, and the two groups of lower housings are located at both ends of the guide bar. The two lower housings in each group are fixedly connected by the horizontal connecting frame.

[0013] Preferably, the connection unit includes: The shaft bracket located on the outside of the cross brace; An upper extension bracket and a lower extension bracket are rotatably connected to the surface of the shaft bracket, with one end of the upper extension bracket fixedly connected to the surface of the upper housing and one end of the lower extension bracket fixedly connected to the surface of the lower housing, to assist in the connection between the armature block and the electromagnet on the same side; and, The synchronous pulleys are fixedly connected inside the upper extension frame and the lower extension frame. Two adjacent synchronous pulleys on the same side are connected by a rolling connection to assist the lower extension frame and the upper extension frame in opening and closing synchronously in opposite directions.

[0014] The bulletproof plate interlocking protection method includes: Step S1: Cut out equidistant, discontinuous U-shaped weld notches; Step S2: Attach the first bulletproof plate and the second bulletproof plate together so that the weld notches are aligned, and then pre-position the first bulletproof plate and the second bulletproof plate. Step S3: Weld the weld seam buildup at the weld seam notch; Step S4: Weld intermittently staggered compensation strips at the connection points on the same side of the weld notch, and connect the first bulletproof plate and the second bulletproof plate through the staggered compensation strips.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The bulletproof plate butt welding structure and staggered protection method, through the setting of the processing unit and the welding pre-positioning mechanism, can effectively reduce the amount of grinding work in the weld area and significantly reduce the concentration of welding stress by using the welding pre-positioning mechanism to accurately position the processing unit and by adopting the process scheme of intermittent welding points at the weld gap and staggered compensation strips set on the same side.

[0016] The bulletproof plate butt welding structure and staggered protection method, through the setting of a first bulletproof plate, a second bulletproof plate, weld notches, staggered compensation strips and butt joints, can make the welded surface hidden on the back side at the same time by the weld notches welded on the same side and the staggered compensation strip scheme, avoiding the grinding step and reducing environmental pollution.

[0017] The bulletproof plate's butt-welded structure and staggered protection method, through the installation of ceramic gaskets, flow guide bars, heat exchange channels, anti-overflow flame-retardant pads, and condensate water connectors, can accelerate the cooling rate of the molten metal by blocking the ceramic gaskets and connecting the heat exchange channels and condensate water externally, further preventing the molten metal from overflowing.

[0018] The ballistic plate butt welding structure and staggered protection method, through the setting of electromagnets, first fixed anti-slip pads, armature blocks, upper sleeves, second fixed anti-slip pads, lower sleeves, cross joints, shafts, upper extension frames, lower extension frames, and synchronous pulleys, can pre-position the first and second ballistic plates by the attraction between the armature blocks and electromagnets during use, thus improving the stability during welding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a bottom view of the present invention; Figure 3 This is a schematic diagram of the structure at the weld notch location of the present invention; Figure 4 This is a schematic diagram of the welding pre-positioning mechanism of the present invention; Figure 5 This is a cross-sectional view of the location of the electromagnetic clamping unit of the present invention; Figure 6 This is a schematic diagram of the structure at the location of the guide bar in this invention; Figure 7 This is a cross-sectional view of the location of the guide bar in this invention.

[0020] In the picture: 101. First bulletproof plate; 102. Second bulletproof plate; 103. Weld notch; 104. Interlaced compensation strip; 105. Butt joint; 201. Ceramic gasket; 202. Flow guide bar; 203. Heat exchange channel; 204. Overflow prevention and flame retardant pad; 205. Condensate butt joint; 301. Electromagnet; 302. First fixed anti-slip pad; 303. Armature block; 304. Upper housing; 305. Second fixed anti-slip pad; 306. Lower housing; 307. Horizontal connecting frame; 401. Shaft frame; 402. Upper extension frame; 403. Lower extension frame; 404. Synchronous pulley. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-7 The bulletproof plate butt welded structure includes: The unit to be processed is to be welded. A welding pre-positioning mechanism is disposed on the surface of the unit to be processed to provide pre-positioning for the unit to be processed, and the welding pre-positioning mechanism includes: The heat dissipation pad unit located directly below the unit to be processed is used to seal and dissipate heat at the bottom of the joint 105; Electromagnetic clamping units are positioned on the upper and lower sides of the unit to be processed to pre-assemble and position the unit; and, A connecting unit located on the outside of the electromagnetic clamping unit assists the electromagnetic clamping unit in pre-positioning the unit to be processed; By setting up the processing unit and the welding pre-positioning mechanism, and based on the precise positioning of the processing unit using the welding pre-positioning mechanism, the process scheme of using intermittent welding points at the weld notch 103 and staggered compensation strips 104 arranged on the same side can effectively reduce the amount of grinding work in the weld area and significantly reduce the concentration of welding stress.

[0023] The processing unit includes: Weld notch 103 is a U-shaped weld notch to increase the local weld accumulation area and ensure weld strength; and, The staggered compensation strip 104 located on the side of the weld notch 103 is used to compensate for the elasticity between the first bulletproof plate 101 and the second bulletproof plate 102. The thermal pad unit includes: A ceramic gasket 201 is located below the weld notch 103 and the staggered compensation strip 104 to block molten metal from flowing into the bottom from the weld notch 103 during welding; The electromagnetic clamping unit includes: Electromagnets 301 located on both sides of ceramic gasket 201 generate electromagnetic force to attract armature block 303; A first anti-slip pad 302 is fixedly attached to the surface of the electromagnet 301 to increase the friction of the surface of the electromagnet 301; and, The armature block 303 located above the electromagnet 301 is used to cooperate with the electromagnet 301 to clamp the first bulletproof plate 101 or the second bulletproof plate 102. By setting up a first bulletproof plate 101, a second bulletproof plate 102, a weld notch 103, an interlaced compensation strip 104, and a butt joint 105, the welded surface can be hidden on the back side by using the weld notch 103 welded on the same side and the interlaced compensation strip 104, thus avoiding the grinding step and reducing environmental pollution.

[0024] The processing unit also includes: The first bulletproof plate 101 and the second bulletproof plate 102 are fixedly welded to the bottom of both ends of the staggered compensation strip 104. During welding, one side of the first bulletproof plate 101 is in contact with one side of the second bulletproof plate 102.

[0025] The processing unit also includes: The butt joint 105 enclosing the first bulletproof plate 101 and the second bulletproof plate 102 has multiple weld notches 103 and multiple staggered compensation strips 104. The multiple weld notches 103 are all opened inside the butt joint 105 and are evenly distributed. The staggered compensation strips 104 are intermittently distributed between each two adjacent weld notches 103, so as to weld the first bulletproof plate 101 and the second bulletproof plate 102 together through the weld notches 103.

[0026] The heat dissipation pad unit also includes: A flow guide bar 202 is located at the bottom of the first bulletproof plate 101 and the second bulletproof plate 102, and the upper surface of the flow guide bar 202 is fixedly connected to the lower surface of the ceramic gasket 201, so as to support the ceramic gasket 201 through the flow guide bar 202; and, A heat exchange channel 203 is formed inside the guide bar 202 to introduce cold water to dissipate heat from the ceramic gasket 201. By using ceramic gaskets 201, flow guide strips 202, heat exchange channels 203, anti-overflow flame-retardant pads 204, and condensate connectors 205, the cooling rate of the molten metal can be accelerated by the obstruction of the ceramic gaskets 201 and the external connection of the heat exchange channels 203 and the condensate, thus further preventing the overflow of the molten metal.

[0027] The heat dissipation pad unit also includes: An overflow-proof flame-retardant pad 204 is fixedly connected to the upper surface of the flow guide bar 202, and the overflow-proof flame-retardant pad 204 surrounds the ceramic gasket 201 to absorb molten metal leaking from between the ceramic gasket 201 and the butt joint 105; and, Condensate connectors 205 are fixedly connected to both ends of the heat exchange channel 203 to ensure that the heat exchange channel 203 is externally connected.

[0028] The electromagnetic clamping unit also includes: The upper sleeve 304 is fixedly sleeved on the surface of the armature block 303; A second fixed anti-slip pad 305 is fixedly attached to the surface of the armature block 303 to increase the friction of the armature block 303 surface; and, The lower housing 306 is fixedly sleeved on the surface of the electromagnet 301.

[0029] The electromagnetic clamping unit also includes: A horizontal connecting frame 307 is fixedly sleeved on the surface of the lower housing 306, and there are four lower housings 306. Every two lower housings 306 form a group, and the two groups of lower housings 306 are located at both ends of the guide bar 202. The two lower housings 306 in each group are fixedly connected by the horizontal connecting frame 307.

[0030] The connecting unit includes: Axle bracket 401 located outside the transverse support 307; An upper extension frame 402 and a lower extension frame 403 are rotatably connected to the surface of the shaft bracket 401, with one end of the upper extension frame 402 fixedly connected to the surface of the upper housing 304 and one end of the lower extension frame 403 fixedly connected to the surface of the lower housing 306, to assist in the connection between the armature block 303 and the electromagnet 301 on the same side; and, The synchronous pulleys 404 are fixedly connected inside the upper extension frame 402 and the lower extension frame 403. Two adjacent synchronous pulleys 404 on the same side are connected by rolling to assist the lower extension frame 403 and the upper extension frame 402 in opening and closing synchronously in opposite directions. By incorporating an electromagnet 301, a first fixed anti-slip pad 302, an armature block 303, an upper sleeve 304, a second fixed anti-slip pad 305, a lower sleeve 306, a transverse support 307, a shaft support 401, an upper extension frame 402, a lower extension frame 403, and a synchronous pulley 404, the first bulletproof plate 101 and the second bulletproof plate 102 can be pre-positioned during use by the attraction between the armature block 303 and the electromagnet 301, thus improving the stability during welding.

[0031] In use, the condensate is connected to an external cold water pipe via the condensate connector 205, allowing condensate to enter the heat exchange channel 203. The condensate enters from one end of the heat exchange channel 203 and exits from the other end. The edges of the first bulletproof plate 101 and the second bulletproof plate 102 are aligned, and the upper extension frame 402 is unfolded. Then, the first bulletproof plate 101 and the second bulletproof plate 102 are placed on the surface of the first fixed anti-slip pad 302, so that the bottom of the butt joint 105 is in contact with the ceramic gasket 201. Then, the upper extension frame 402 is closed so that the armature block 303 is positioned above the electromagnet 301. Then, the electromagnet 301 is energized to attract the armature block 303, thereby pressing the first bulletproof plate 101 and the second bulletproof plate 102 together. During welding, the molten metal flowing into the bottom of the weld notch 103 is blocked by the ceramic gasket 201. At the same time, the continuously flowing condensate will quickly carry away the heat of the ceramic gasket 201, the guide bar 202 and the molten metal, causing the molten metal to cool down and solidify rapidly.

[0032] The bulletproof plate interlocking protection method includes: Step S1: Cut out equidistant, discontinuous U-shaped weld notches; Step S2: Attach the first bulletproof plate 101 and the second bulletproof plate 102 together so that the weld notch 103 is aligned accordingly, and then pre-position the first bulletproof plate 101 and the second bulletproof plate 102. Step S3: Weld the weld seam buildup at weld notch 103; Step S4: Intermittently spot weld staggered compensation strips 104 at the connection position on the same side of the weld notch 103, and connect the first bulletproof plate 101 and the second bulletproof plate 102 through the staggered compensation strips 104.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bulletproof plate butt-welded structure, characterized in that, include: The unit to be processed is to be welded. A welding pre-positioning mechanism is disposed on the surface of the unit to be processed to provide pre-positioning for the unit to be processed, and the welding pre-positioning mechanism includes: A heat dissipation pad unit located directly below the unit to be processed is used to seal and dissipate heat at the bottom of the joint (105); Electromagnetic clamping units are positioned on the upper and lower sides of the unit to be processed to pre-assemble and position the unit; and, A connecting unit is provided on the outside of the electromagnetic clamping unit to assist the electromagnetic clamping unit in pre-positioning the unit to be processed.

2. The bulletproof plate butt welding structure according to claim 1, characterized in that, The processing unit includes: The weld notch (103) is a U-shaped weld notch to increase the local weld accumulation area and ensure weld strength; and, The staggered compensation strip (104) located on the side of the weld notch (103) compensates for the elasticity between the first bulletproof plate (101) and the second bulletproof plate (102); The heat dissipation pad unit includes: A ceramic gasket (201) located below the weld notch (103) and the staggered compensation strip (104) is used to block molten metal from flowing into the bottom from the weld notch (103) during welding; The electromagnetic clamping unit includes: Electromagnets (301) located on both sides of ceramic pad (201) generate electromagnetic force to attract armature block (303). A first fixed anti-slip pad (302) is fixedly attached to the surface of the electromagnet (301) to increase the friction of the surface of the electromagnet (301); and, An armature block (303) located above the electromagnet (301) is used to cooperate with the electromagnet (301) to clamp the first bulletproof plate (101) or the second bulletproof plate (102).

3. The bulletproof plate butt welding structure according to claim 2, characterized in that, The processing unit also includes: The first bulletproof plate (101) and the second bulletproof plate (102) are fixedly welded to the bottom of both ends of the staggered compensation strip (104). During welding, one side of the first bulletproof plate (101) is in contact with one side of the second bulletproof plate (102).

4. The bulletproof plate butt welding structure according to claim 3, characterized in that, The processing unit also includes: The butt joint (105) enclosing the first bulletproof plate (101) and the second bulletproof plate (102) has multiple weld notches (103) and multiple staggered compensation strips (104). The multiple weld notches (103) are all opened inside the butt joint (105) and the multiple weld notches (103) are distributed at equal intervals. The staggered compensation strips (104) are intermittently distributed between each two adjacent weld notches (103) so as to weld the first bulletproof plate (101) and the second bulletproof plate (102) together through the weld notches (103).

5. The bulletproof plate butt welding structure according to claim 2, characterized in that, The heat dissipation pad unit also includes: A flow guide bar (202) is located at the bottom of the first bulletproof plate (101) and the second bulletproof plate (102), and the upper surface of the flow guide bar (202) is fixedly connected to the lower surface of the ceramic gasket (201) so as to support the ceramic gasket (201) through the flow guide bar (202); and, A heat exchange channel (203) is formed inside the flow guide bar (202) to introduce cold water to dissipate heat from the ceramic gasket (201) through the heat exchange channel (203).

6. The bulletproof plate butt welding structure according to claim 5, characterized in that, The heat dissipation pad unit also includes: An overflow-proof flame-retardant pad (204) is fixedly connected to the upper surface of the flow guide bar (202), and the overflow-proof flame-retardant pad (204) surrounds the ceramic gasket (201) to absorb molten metal leaking from between the ceramic gasket (201) and the butt joint (105); and, Condensate connectors (205) are fixedly connected to both ends of the heat exchange channel (203) to ensure that the heat exchange channel (203) is externally connected.

7. The bulletproof plate butt welding structure according to claim 2, characterized in that, The electromagnetic clamping unit also includes: The upper sleeve (304) is fixedly sleeved on the surface of the armature block (303). A second fixed anti-slip pad (305) is fixedly attached to the surface of the armature block (303) to increase the friction of the surface of the armature block (303); and, The lower sleeve (306) is fixedly sleeved on the surface of the electromagnet (301).

8. The bulletproof plate butt welding structure according to claim 7, characterized in that, The electromagnetic clamping unit also includes: A cross bracket (307) is fixedly fitted onto the surface of the lower housing (306), and there are four lower housings (306), with each pair of lower housings (306) forming a group. The two groups of lower housings (306) are located at the two ends of the guide bar (202), and the two lower housings (306) in each group are fixedly connected by the cross bracket (307).

9. The bulletproof plate butt welding structure according to claim 8, characterized in that, The connection unit includes: A shaft bracket (401) located outside the transverse support (307); An upper extension bracket (402) and a lower extension bracket (403) are rotatably connected to the surface of the shaft bracket (401), with one end of the upper extension bracket (402) fixedly connected to the surface of the upper housing (304) and one end of the lower extension bracket (403) fixedly connected to the surface of the lower housing (306) to assist in the connection between the armature block (303) and the electromagnet (301) on the same side; and, The synchronous pulleys (404) are fixedly connected inside the upper extension frame (402) and the lower extension frame (403). Two adjacent synchronous pulleys (404) on the same side are connected by rolling to assist the lower extension frame (403) and the upper extension frame (402) to open and close synchronously in opposite directions.

10. A method for interlocking and protecting bulletproof plates based on the structure described in claims 1-9, characterized in that, include: Step S1: Cut out equidistant, discontinuous U-shaped weld notches; Step S2: Attach the first bulletproof plate (101) and the second bulletproof plate (102) together so that the weld notch (103) is aligned accordingly, and then pre-position the first bulletproof plate (101) and the second bulletproof plate (102); Step S3: Weld the weld seam buildup at the weld notch (103); Step S4: Intermittently spot weld staggered compensation strips (104) at the connection position on the same side of the weld notch (103), and connect the first bulletproof plate (101) and the second bulletproof plate (102) through the staggered compensation strips (104).

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