Car door nut plate common structure assembly and machining device thereof

Abstract

The utility model discloses a car door nut plate shared structure assembly and a machining device thereof. The car door nut plate shared structure assembly comprises a nut, a cover plate and a nut plate. The cover plate is buckled on the nut plate, and the nut is arranged in a mounting cavity formed by the cover plate and the nut plate; a first nut hole larger than one end of the nut is formed in the nut plate, so that one end of the nut is adjustably embedded in the first nut hole; a second nut hole larger than the other end of the nut is formed in the cover plate, and the other end of the nut adjustably penetrates through the second nut hole. The utility model relates to the technical field of vehicle part machining, and can solve the problem that nuts have position deviation when nut plates of different types are debugged and installed in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts processing, in particular to a common structural component of a vehicle door nut plate and a processing device thereof. Background Art

[0002] Chinese utility model patent CN208203710U discloses a nut plate, a debugging mechanism and a vehicle door. The nut plate includes a plate body, and the plate body is provided with at least one threaded hole and at least two welding points. The threaded hole and the bolts or screws matched therewith are used to fix the locking structure to the plate body, and the welding points are used to weld the plate body to the corresponding positions of the side wall of the vehicle body.

[0003] The nut plate and the nuts in the prior art are directly welded and fixed on the nut plate. Due to the slight differences in the door nut plates of different models, the nut position deviation often occurs during the debugging and installation process. The nut plates of different models cannot be shared, resulting in the need to rework and install the nuts, which delays the work time. Therefore, it is necessary to provide a common structural component of the door nut plate and a processing device thereof, which can solve the problem of nut position deviation during the debugging and installation of different nut plates in the prior art. Summary of the invention

[0004] The utility model aims to provide a common structural component of a vehicle door nut plate and a processing device thereof, which can solve the problem of position deviation of nuts when debugging and installing nut plates of different models in the prior art.

[0005] The utility model is achieved in this way:

[0006] A common structural component for a vehicle door nut plate comprises a nut, a cover plate and a nut plate; the cover plate is buckled on the nut plate, and the nut is placed in an installation cavity formed by the cover plate and the nut plate; a first nut hole larger than one end of the nut is formed on the nut plate, so that one end of the nut can be adjustably embedded in the first nut hole; a second nut hole larger than the other end of the nut is formed on the cover plate, and the other end of the nut can adjustably pass through the second nut hole.

[0007] Three first flanges are formed on the nut plate, the three first flanges surround the first nut hole and the outer side of the nut on three sides, and the three first flanges are respectively connected to the cover plate.

[0008] Four second flanges are formed on the cover plate, and the four second flanges surround the second nut hole and the outer side of the nut on four sides, wherein three second flanges are respectively fitted and connected with the three first flanges.

[0009] A first processing device for a common structural component of a door nut plate, the first processing device is used for blanking and punching processing of a cover plate and a nut plate; the first processing device comprises a first upper template, an upper pad, an upper clamping plate, a punch fixing plate, a first die, a pressure plate, a punching plate, a punching rod, a nut hole punch, a punch, a first lower pad and a first lower template; the first upper template is fixed on a punch press slide, the upper pad is fixed on the bottom of the first upper template, the upper clamping plate is fixed on the bottom of the upper pad, the punch fixing plate is fixed on the bottom of the upper clamping plate, and the first die is fixed on the bottom of the punch fixing plate; the punching plate is embedded in The pressure plate is embedded in the first die in the upper pad, the hitting rod connects the hitting plate and the pressure plate and passes through the upper clamping plate and the punch fixing plate, the nut hole punch is installed on the punch fixing plate and passes through the pressure plate; a punch hole is formed in the first die, the nut plate / cover plate is placed on the first punch, so that the pressure plate can be pressed on the nut plate / cover plate and the nut hole punch passes through the nut plate / cover plate and then inserted into the punch hole, forming a first nut hole on the nut plate, or forming a second nut hole on the cover plate; the first lower template is locked on the lower bed of the punch press, and the first punch is installed on the first lower template through the first lower pad.

[0010] The first stripping plate is sleeved on the outside of the first convex mold, the first concave mold can be pressed downward on the first stripping plate, and a spring is arranged between the first stripping plate and the first lower pad.

[0011] A first guide post is installed on the first lower pad, and guide post holes matching the first guide post are formed in the first die and the first unloading plate, so that the upper part of the first guide post passes through the guide post hole through the first unloading plate and is movably inserted in the first die.

[0012] A second processing device for a common structural component of a vehicle door nut plate, the second processing device is used for flanging the nut plate; the second processing device comprises a second upper template, a second punch, a second die, a second stripper plate, a second lower pad, a second lower template and a second lower die spring; the second upper template is locked on the punch press slide, the second punch is mounted on the bottom of the second upper template, the second die is mounted on the second lower template through the second lower pad, and the second lower template is locked on the lower bed of the punch press; the second stripper plate is mounted on the second lower pad in a liftable manner through the second lower die spring and is located in the second die; the nut plate is placed on the second die, and the second die is a die structure surrounded by three sides, so that the second punch can be pressed on the nut plate and embedded in the second die, forming a first flanging at the three edges of the nut plate.

[0013] The second upper template is embedded with a first guide sleeve, the second lower template is installed with a second guide column, and the upper part of the second guide column can be slidably inserted into the first guide sleeve.

[0014] A third processing device for a common structural component of a vehicle door nut plate, wherein the third processing device is used for flanging processing of a cover plate; the third processing device comprises a third upper template, a third punch, a third die, a third stripper plate, a third lower pad, a third lower template and a third lower die spring; the third upper template is locked on a slide block on a punch press, the third punch is mounted on the bottom of the third upper template, the third die is mounted on the third lower template through a third lower pad, and the third lower template is locked on a lower bed surface of the punch press; the third stripper plate is mounted on the third lower pad through a third lower die spring in a liftable manner and is located in the third die; the cover plate is placed on the third die, and the third die is a die structure surrounded by four sides, so that the third punch can be pressed against the cover plate and embedded in the third die, forming a second flanging at the four edges of the cover plate.

[0015] The third upper template is embedded with a second guide sleeve, the third lower template is installed with a third guide column, and the upper part of the third guide column can be slidably inserted into the second guide sleeve.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model is provided with a nut, a cover plate and a nut plate, and an installation cavity for installing the nut is formed by connecting the four second flanges of the cover plate with the three first flanges of the nut plate, and a certain adjustment range is provided for the position of the nut through the first nut hole and the second nut hole. There is no need to weld the nut to the nut plate in advance, which can solve the problem of deviation in the nut position during debugging and installation of nut plates of different models with slight differences, and realize the sharing of nut plates of different models, without rework and reinstalling the nut, which is conducive to ensuring the debugging and installation efficiency of the nut plate.

[0018] 2. Since the utility model is provided with the first processing device, the second processing device and the third processing device, it can be used to process the nut plate with three first flanges and the first nut holes and the cover plate with four second flanges and the second nut holes, which is convenient for debugging and installing the nut plate and the nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the common structural components of the door nut plate of the utility model;

[0020] Figure 2 It is an exploded view of the common structural components of the door nut plate of the utility model;

[0021] Figure 3 It is a planar structural diagram of the nut plate in the common structural assembly of the door nut plate of the utility model;

[0022] Figure 4 It is a cross-sectional view of a first processing device of a common structural assembly of a door nut plate of the utility model;

[0023] Figure 5 It is a cross-sectional view of a second processing device of the common structural assembly of the door nut plate of the utility model;

[0024] Figure 6 It is a cross-sectional view of a third processing device of the common structural assembly of the vehicle door nut plate of the utility model.

[0025] In the figure, nut 11, cover plate 12, nut plate 13, first nut hole 14, second nut hole 15, first flange 16, second flange 17, first upper template 21, upper pad 22, upper clamping plate 23, punch fixing plate 24, first concave die 25, pressing plate 26, punching plate 27, punching rod 28, nut hole punch 29, punch 210, first unloading plate 211, first lower pad 212, first lower template 213, first guide column 21 4, spring 215, second upper template 31, second punch 32, second die 33, second unloading plate 34, second lower pad 35, second lower template 36, second lower die spring 37, second guide column 39, first guide sleeve 310, third upper template 41, third punch 42, third die 43, third unloading plate 44, third lower pad 45, third lower template 46, third lower die spring 47, third guide column 49, second guide sleeve 410. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Please see attached Figure 1 To Attachment Figure 3 A common structural component of a vehicle door nut plate includes a nut 11, a cover plate 12 and a nut plate 13; the cover plate 12 is buckled on the nut plate 13, and the nut 11 is placed in an installation cavity formed by the cover plate 12 and the nut plate 13; a first nut hole 14 slightly larger than one end of the nut 11 is formed on the nut plate 13, so that one end of the nut 11 can be adjustably embedded in the first nut hole 14; a second nut hole 15 slightly larger than the other end of the nut 11 is formed on the cover plate 12, and the other end of the nut 11 can adjustably pass through the second nut hole 15.

[0028] The nut 11 is installed on the nut plate 13 through the cover plate 12. The cover plate 12 is buckled with the nut plate 13 to prevent the nut 11 from falling off, and there is no need to pre-weld and fix the nut 11 on the nut plate 13. During the debugging and installation of the nut plate 13, since the first nut hole 14 and the second nut hole 15 are slightly larger than the size of the nut 11, the nut 11 can have a certain adjustable range in the first nut hole 14 and the second nut hole 15, which solves the problem of the installation position deviation of the nut 11 due to slight differences in nut plates 13 of different models, and realizes the common use of nut plates 13 of different models with slight differences during installation and debugging, which will not affect the installation accuracy of the nut 11.

[0029] Preferably, the sizes of the first nut hole 14 and the second nut hole 15 can be adaptively adjusted according to actual differences to ensure that the adjustment range of the nut 11 can meet the deviation adjustment requirements. After adjusting and determining the installation position of the nut 11, the nut 11 and the nut plate 13 are finally welded and fixed.

[0030] Please see attached Figure 1 To Attachment Figure 3 Three first flanges 16 are formed on the nut plate 13 , and the three first flanges 16 surround the first nut hole 14 and the outer side of the nut 11 on three sides, and the three first flanges 16 are respectively connected to the cover plate 12 .

[0031] The three first flanges 16 can be used to limit the installation of the cover plate 12 , facilitating the precise installation connection between the cover plate 12 and the nut plate 13 , so that the setting position and adjustment range of the nut 11 can meet the debugging and installation requirements of the nut plate 13 .

[0032] Please see attached Figure 1 and attached Figure 2 Four second flanges 17 are formed on the cover plate 12 , and the four second flanges 17 surround the second nut hole 15 and the outer side of the nut 11 , wherein three second flanges 17 are respectively fitted and connected with the three first flanges 16 .

[0033] The four second flanges 17 of the cover plate 12 can be used to prevent the nut 11 from falling out, and at the same time facilitate the connection with the three first flanges 16. Preferably, the second flanges 17 and the first flanges 16 can be connected by spot welding, and the shapes and sizes of the second flanges 17 and the first flanges 16 can be adaptively adjusted according to actual assembly requirements.

[0034] Preferably, the height of the cover plate 12 and its second flange 17 does not exceed the height of the first flange 16, and the width of the cover plate 12 does not exceed the width of the nut plate 13, so that the cover plate 12 is concealedly installed in the nut plate 13 without affecting the normal debugging and installation of the nut plate 13.

[0035] Please see attached Figure 4, a first processing device for a common structural component of a door nut plate, the first processing device is used for blanking and punching processing of a cover plate 12 and a nut plate 13; the first processing device comprises a first upper template 21, an upper pad 22, an upper clamping plate 23, a punch fixing plate 24, a first die 25, a pressing plate 26, a punching plate 27, a punching rod 28, a nut hole punch 29, a punch 210, a first lower pad 212 and a first lower template 213; the first upper template 21 is fixed on a punch press slide, the upper pad 22 is fixed on the bottom of the first upper template 21, the upper clamping plate 23 is fixed on the bottom of the upper pad 22, the punch fixing plate 24 is fixed on the bottom of the upper clamping plate 23, and the first die 25 is fixed on the bottom of the punch fixing plate 24; the punching plate 27 is embedded in the upper pad 22 The pressure plate 26 is embedded in the first die 25, the hitting rod 28 connects the hitting plate 27 and the pressure plate 26 and passes through the upper clamping plate 23 and the punch fixing plate 24, the nut hole punch 29 is installed on the punch fixing plate 24 and passes through the pressure plate 26; a punch hole is formed in the first die 210, the nut plate 13 / cover plate 12 is placed on the first punch 210, so that the pressure plate 26 can be pressed on the nut plate 13 / cover plate 12 and the nut hole punch 29 passes through the nut plate 13 / cover plate 12 and then inserted into the punch hole, forming a first nut hole 14 on the nut plate 13, or forming a second nut hole 15 on the cover plate 12; the first lower template 213 is locked on the lower bed of the punch press, and the first punch 210 is installed on the first lower template 213 through the first lower pad 212.

[0036] When the punch slide moves downward, the first stripper plate 211 and the first die 25 move downward synchronously and press the nut plate 13, the press plate 26 moves downward synchronously and presses the nut plate 13, and the first punch 210 and the first die 25 contact to complete the trimming of the nut plate 13. At the same time, the nut hole punch 9 moves downward synchronously to complete the punching action of the nut plate 13, forming the first nut hole 14. The upward movement of the punch slide drives the first die 25 to move upward synchronously relative to the punch plate 27, and the first die 25 is separated from the nut plate 13 to complete the blanking.

[0037] The punching process of the cover plate 12 is the same as that of the nut plate 13, and will not be described again. The first punch 210 and the first die 25 can be adaptively selected according to the trimming requirements of the nut plate 13 and the cover plate 12, and the nut hole punch 9 can be adaptively selected according to the size requirements of the first nut hole 14 and the second nut hole 15.

[0038] Please see attached Figure 4 The first male die 210 is externally sleeved with a first stripping plate 211 , the first female die 25 can be pressed downwardly against the first stripping plate 211 , and a spring 215 is provided between the first stripping plate 211 and the first lower pad 212 .

[0039] When the first die 25 moves downward, the spring 215 is compressed downward to store force in the spring 215. When the first die 25 moves upward, the elastic force of the spring 215 lifts the first unloading plate 211 upward and resets it, thereby lifting the nut plate 13 upward and out of the first die 25, making unloading convenient.

[0040] Preferably, the number and distribution spacing of the springs 215 can be adaptively adjusted according to actual usage requirements.

[0041] Please see attached Figure 4 A first guide post 214 is installed on the first lower pad 212, and a guide post hole matching the first guide post 214 is formed in the first die 25 and the first unloading plate 211, so that the upper part of the first guide post 214 passes through the guide post hole through the first unloading plate 211 and is movably inserted in the first die 25.

[0042] Preferably, the first guide pillars 214 and the guide pillar holes are arranged in pairs, and the number of the first guide pillars 214 and the guide pillar holes can be adaptively adjusted according to actual use requirements without interfering with the springs 215 .

[0043] During the upward and downward movement of the first die 25 , the first guide post 214 moves in the guide post hole, which can limit and guide the movement of the first die 25 , thereby improving the stability of the movement of the first die 25 .

[0044] Please see attached Figure 5 , a second processing device for a common structural component of a vehicle door nut plate, the second processing device is used for flanging processing of a nut plate 13; the second processing device comprises a second upper template 31, a second punch 32, a second die 33, a second stripper plate 34, a second lower pad 35, a second lower template 36 and a second lower die spring 37; the second upper template 31 is locked on the punch slide, the second punch 32 is mounted on the bottom of the second upper template 31, the second die 33 is mounted on the second lower template 36 through the second lower pad 35, and the second lower template 36 is locked on the lower bed of the punch; the second stripper plate 34 is mounted on the second lower pad 35 in a lifting manner through the second lower die spring 37, and is located in the second die 33; the nut plate 13 is placed on the second die 33, and the second die 33 is a die structure surrounded by three sides, so that the second punch 32 can be pressed on the nut plate 13 and embedded in the second die 33, and the first flanging 16 is formed at the three edges of the nut plate 13.

[0045] The downward movement of the punch press slide drives the second upper mold plate 31 and the second punch 32 to move downward synchronously. The second punch 32 squeezes the nut plate 13 into the second die 33. The second punch 32 continues to move downward until it presses downward against the second discharge plate 34 and compresses the second lower mold spring 37. The three sides of the nut plate 13 are flanging processed by the die structure surrounded by the three sides of the second die 33 to form three first flanges 16.

[0046] After the flanging process of the nut plate 13 is completed, the punch press slide moves upward to drive the second upper mold plate 31 and the second punch 32 to reset synchronously, and the second lower mold spring 37 uses elastic force to lift the second unloading plate 34, thereby lifting the nut plate 13 from the second die 33 to facilitate unloading.

[0047] Preferably, the number and distribution spacing of the second lower die springs 37 can be adaptively adjusted according to actual use requirements. The second punch 32 and the second die 33 are adaptively selected according to the shapes of the nut plate 13 and the three first flanges 16 thereof.

[0048] Please see attached Figure 5 The second upper template 31 is embedded with a first guide sleeve 310 , and the second lower template 36 is installed with a second guide column 39 , and the upper part of the second guide column 39 can be slidably inserted into the first guide sleeve 310 .

[0049] During the upward and downward movement of the second upper template 31 , the second guide post 39 slides in the first guide sleeve 310 . The first guide sleeve 310 guides and limits the second guide post 39 , thereby ensuring that the movement trajectory of the second upper template 31 is stable and controllable.

[0050] Preferably, the second guide pillars 39 and the first guide sleeves 310 are arranged in pairs, and the number of the second guide pillars 39 and the first guide sleeves 310 can be adaptively adjusted according to actual usage requirements.

[0051] Please see attached Figure 6 , a third processing device for a common structural component of a door nut plate, the third processing device is used for flanging processing of a cover plate 12; the third processing device includes a third upper template 41, a third punch 42, a third die 43, a third stripper plate 44, a third lower pad 45, a third lower template 46 and a third lower die spring 47; the third upper template 41 is locked on the slider of the punch press, the third punch 42 is installed at the bottom of the third upper template 41, the third die 43 is installed on the third lower template 46 through the third lower pad 45, and the third lower template 46 is locked on the lower bed of the punch press; the third stripper plate 44 is installed on the third lower pad 45 in a lifting manner through the third lower die spring 47, and is located in the third die 43; the cover plate 12 is placed on the third die 43, and the third die 43 is a die structure surrounded by four sides, so that the third punch 42 can be pressed on the cover plate 12 and embedded in the third die 43, and the second flanging 17 is formed at the four edges of the cover plate 12.

[0052] The downward movement of the punch slide drives the third upper mold plate 41 and the third punch 42 to move downward synchronously. The third punch 42 squeezes the cover plate 12 to the third die 43. The third punch 42 continues to move downward to press the third unloading plate 44 downward and compress the third lower die spring 47. The die structure surrounded by the four sides of the third punch 42 has a flanging effect on the four sides of the cover plate 12.

[0053] After the flanging process of the cover plate 12 is completed, the punch slide moves upward to drive the third upper mold plate 41 and the third punch 42 to reset synchronously, and the third lower mold spring 47 uses elastic force to lift the third unloading plate 44, thereby lifting the cover plate 12 from the third die 43 to facilitate unloading.

[0054] Preferably, the number and distribution spacing of the second lower die springs 37 can be adaptively adjusted according to actual use requirements. The third convex die 42 and the third concave die 43 can be adaptively selected according to the shape of the cover plate 12 and its four second flanges 17 .

[0055] Please see attached Figure 6 The third upper mold plate 41 is embedded with a second guide sleeve 410 , and the third lower mold plate 46 is installed with a third guide column 49 , and the upper part of the third guide column 49 can be slidably inserted into the second guide sleeve 410 .

[0056] During the upward and downward movement of the third upper mold plate 41 , the third guide post 49 slides in the second guide sleeve 410 . The second guide sleeve 410 guides and limits the third guide post 49 , thereby ensuring that the movement trajectory of the third upper mold plate 41 is stable and controllable.

[0057] Preferably, the third guide pillar 49 and the second guide sleeve 410 are arranged in pairs, and the number of the third guide pillar 49 and the second guide sleeve 410 can be adaptively adjusted according to actual usage requirements.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A common structural component for a door nut plate, characterized by: The invention comprises a nut (11), a cover plate (12) and a nut plate (13); the cover plate (12) is buckled on the nut plate (13), and the nut (11) is placed in a mounting cavity formed by the cover plate (12) and the nut plate (13); a first nut hole (14) larger than one end of the nut (11) is formed on the nut plate (13), so that one end of the nut (11) can be adjustably embedded in the first nut hole (14); a second nut hole (15) larger than the other end of the nut (11) is formed on the cover plate (12), and the other end of the nut (11) can adjustably penetrate the second nut hole (15).

2. The common structural assembly of the door nut plate according to claim 1, characterized in that: Three first flanges (16) are formed on the nut plate (13), the three first flanges (16) surround the first nut hole (14) and the outer side of the nut (11) on three sides, and the three first flanges (16) are respectively connected to the cover plate (12).

3. The common structural assembly of the door nut plate according to claim 2, characterized in that: Four second flanges (17) are formed on the cover plate (12), and the four second flanges (17) surround the second nut hole (15) and the outer side of the nut (11) on four sides, wherein three of the second flanges (17) are respectively fitted and connected with the three first flanges (16).

4. A first processing device for the common structural assembly of the door nut plate according to claim 3, characterized in that: The first processing device is used for blanking and punching processing of the cover plate (12) and the nut plate (13); the first processing device comprises a first upper template (21), an upper pad (22), an upper clamping plate (23), a punch fixing plate (24), a first die (25), a pressure plate (26), a punching plate (27), a punching rod (28), a nut hole punch (29), a punch (210), a first lower pad (212) and a first lower template (213); the first upper template (21) is fixed on the punching machine slider, the upper pad (22) is fixed on the bottom of the first upper template (21), the upper clamping plate (23) is fixed on the bottom of the upper pad (22), the punch fixing plate (24) is fixed on the bottom of the upper clamping plate (23), and the first die (25) is fixed on the bottom of the punch fixing plate (24); the punching plate (27) is embedded in the upper pad (22), the pressure plate (26) is embedded in the first In the concave die (25), a punching rod (28) connects the punching plate (27) and the pressing plate (26) and penetrates the upper clamping plate (23) and the punch fixing plate (24); a nut hole punch (29) is installed on the punch fixing plate (24) and penetrates the pressing plate (26); a punch hole is formed in the first concave die (25); the nut plate (13) / cover plate (12) is placed on the first convex die (210), so that the pressing plate (26) can be pressed tightly on the nut plate ( 13) / cover plate (12) and a nut hole punch (29) is inserted into the punch hole after penetrating the nut plate (13) / cover plate (12), thereby forming a first nut hole (14) on the nut plate (13), or forming a second nut hole (15) on the cover plate (12); a first lower template (213) is locked on the lower bed surface of the punch press, and a first punch (210) is installed on the first lower template (213) through a first lower pad (212).

5. The first processing device according to claim 4, characterized in that: The first male mold (210) is sleeved with a first stripping plate (211) on its exterior, the first female mold (25) can be pressed downward against the first stripping plate (211), and a spring (215) is provided between the first stripping plate (211) and the first lower pad (212).

6. The first processing device according to claim 5, characterized in that: A first guide post (214) is installed on the first lower pad (212), and guide post holes matching the first guide post (214) are formed in the first die (25) and the first stripping plate (211), so that the upper part of the first guide post (214) passes through the guide post hole and penetrates the first stripping plate (211) and is movably inserted in the first die (25).

7. A second processing device for the common structural assembly of the door nut plate according to claim 3, characterized in that: The second processing device is used for flanging processing of the nut plate (13); the second processing device comprises a second upper template (31), a second punch (32), a second die (33), a second stripper plate (34), a second lower pad (35), a second lower template (36) and a second lower template spring (37); the second upper template (31) is locked on the punch slide, the second punch (32) is installed at the bottom of the second upper template (31), and the second die (33) is installed on the second lower template (36) through the second lower pad (35). ), the second lower template (36) is locked on the lower bed of the punch press; the second unloading plate (34) is installed on the second lower pad (35) in a liftable manner through the second lower die spring (37), and is located in the second die (33); the nut plate (13) is placed on the second die (33), and the second die (33) is a three-sided enclosed die structure, so that the second punch (32) can be pressed on the nut plate (13) and embedded in the second die (33), forming a first flange (16) at the three edges of the nut plate (13).

8. The second processing device according to claim 7, characterized in that: The second upper mold plate (31) is embedded with a first guide sleeve (310), and the second lower mold plate (36) is installed with a second guide column (39), and the upper part of the second guide column (39) can be slidably inserted into the first guide sleeve (310).

9. A third processing device for the common structural assembly of the door nut plate according to claim 3, characterized in that: The third processing device is used for flanging processing of the cover plate (12); the third processing device comprises a third upper template (41), a third punch (42), a third die (43), a third stripper plate (44), a third lower pad (45), a third lower template (46) and a third lower template spring (47); the third upper template (41) is locked on the slider of the punch press, the third punch (42) is installed at the bottom of the third upper template (41), and the third die (43) is installed on the third lower template (46) through the third lower pad (45). 46), the third lower template (46) is locked on the lower bed of the punch press; the third unloading plate (44) is installed on the third lower pad (45) in a liftable manner through the third lower die spring (47), and is located in the third die (43); the cover plate (12) is placed on the third die (43), and the third die (43) is a die structure surrounded by four sides, so that the third punch (42) can be pressed on the cover plate (12) and embedded in the third die (43), forming a second flange (17) at the four edges of the cover plate (12).

10. The third processing device according to claim 9, characterized in that: The third upper mold plate (41) is embedded with a second guide sleeve (410), and the third lower mold plate (46) is installed with a third guide column (49). The upper part of the third guide column (49) can be slidably inserted into the second guide sleeve (410).

Images