A blind hole processing device and method for threading products

Abstract

The application discloses a blind hole processing device for a strip product and a blind hole processing method, and relates to the technical field of drilling equipment. The device comprises a rack, a first platform and a second platform arranged on the rack, a fixing component, a drilling component and a limiting component. The fixing component comprises a positioning piece and a pressing member, the pressing member is provided with a pre-pressing block capable of being turned over above the positioning piece, the pre-pressing block is used for pressing and fixing the automobile door frame strip positioned on the positioning piece, the drilling component comprises a drilling assembly and a first driving piece, the drilling assembly is slidingly arranged on the second platform, the drilling assembly is provided with a drill bit, the first driving piece is in transmission connection with the drilling assembly, and the first driving piece is used for driving the drill bit to translate along a direction perpendicular to the drilling direction. The limiting component comprises a guide piece, and the guide piece is used for guiding the drill bit to align with a processing position of the blind hole of the automobile door frame strip fixedly positioned. The blind hole processing device for the strip product can solve the problem of blind hole processing of special door frame strips and effectively improve the production efficiency of the door frame strips.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and in particular to a blind hole machining device and method for a product. Background Technology

[0002] As automobiles become more functional, the number of components that need to be installed within the vehicle's structural frame increases, correspondingly requiring more mounting holes. The upper part of an automobile door frame typically only has solid perforations. These holes can be created using a bending machine's punching mechanism or a separate punching process. However, some special vehicle models require holes to be machined on the blind cavity side of the upper part of the door frame, which cannot be drilled through. Therefore, general punching machines cannot process blind holes. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. To this end, embodiments of the present invention provide a blind hole processing device for upper strip products, solving the problem of blind hole processing for upper strips on special door frames.

[0004] This invention also provides a blind hole processing method using the blind hole processing apparatus described above for the product.

[0005] According to an embodiment of a first aspect of the present invention, a blind hole processing apparatus for an automotive door frame is provided, comprising a frame on which a first platform and a second platform are disposed; at least two sets of fixing components spaced apart from each other on the first platform, each fixing component comprising a positioning member and a clamping member, the positioning member being used to position an automotive door frame upper strip, the clamping member having a pre-pressing block capable of flipping over the positioning member, the pre-pressing block being used to press and fix the automotive door frame upper strip positioned on the positioning member; at least one set of drilling components, each drilling component comprising a drilling assembly and a first driving member, the drilling assembly being slidably disposed on the second platform, the drilling assembly having a drill bit capable of moving toward a processing position of the positioned and fixed automotive door frame upper strip, the first driving member being convexly connected to the drilling assembly, the first driving member being used to drive the drill bit to translate along a direction perpendicular to the drilling direction, so that the drill bit can perform blind hole processing of at least one automotive door frame upper strip; and a limiting component comprising a guide member capable of moving between the positioning member and the drilling component, the guide member being used to guide the drill bit to align with the processing position of the positioned and fixed automotive door frame upper strip.

[0006] The aforementioned blind hole machining device for automotive door frame products has at least the following beneficial effects: When machining blind holes in automotive door frame products, the automotive door frame product is first positioned on the positioning component, and then the pre-pressure block presses and fixes the automotive door frame product to the positioning component. Next, the limiting component actuates, causing the guide component to move onto the feed path of the drill bit. Then, the drilling component actuates, driving the drill bit to rotate while feeding towards the machining position of the blind hole in the positioned and fixed automotive door frame product. Before the drill bit touches the automotive door frame product, the guide component guides the drill bit to accurately drill at the correct blind hole machining position, avoiding drill bit vibration during drilling and ensuring automated machining. The processing quality of blind holes is guaranteed. Compared with existing technologies, it can accurately drill blind holes without damaging the upper part of the car door frame, solving the problem that existing hole processing equipment cannot perform blind hole processing. It eliminates the need for manual drilling of blind holes, enabling automated processing. Furthermore, after the drill bit completes the processing of one blind hole, it returns to its original position. Because the drilling assembly is slidably set on the second platform, the first drive component can drive the drill bit to translate, thereby adjusting the drill bit to the processing position of the next blind hole. Then, the drill bit is driven to automatically feed again to drill the blind hole. This allows all blind holes of the upper part of the car door frame to be drilled, effectively improving the production efficiency of the upper part of the car door frame.

[0007] According to a first aspect embodiment of the present invention, the blind hole processing apparatus for the upper product includes a drilling assembly comprising a first mounting plate, a second driving member, and a third driving member. The first mounting plate is slidably connected to a second platform. The second driving member is mounted on the first mounting plate and includes a hollow shaft capable of linear reciprocating motion. The drill bit is rotatably disposed on the hollow shaft. The third driving member is mounted on the second driving member and is drively connected to the drill bit, thereby driving the drill bit to rotate.

[0008] According to the blind hole processing device for the upper product of the first aspect of the present invention, a first rotating shaft and a second rotating shaft are provided inside the hollow shaft. The first rotating shaft is rotatably disposed on the hollow shaft by a bearing. One end of the first rotating shaft is fixed to the drill bit, and the other end is slidably connected to one end of the second rotating shaft by a spline structure. The other end of the second rotating shaft is drively connected to the third driving member.

[0009] According to the blind hole processing apparatus for the upper product according to the first aspect of the present invention, the second driving member is a first cylinder, the third driving member is a motor, and the motor is connected to the second rotating shaft through a synchronous belt structure.

[0010] According to the blind hole processing device for the upper part of the product according to the first aspect of the present invention, the hollow shaft is provided with a hydraulic buffer, the second driving member is provided with a limiting block, the limiting block is located on the movement path of the hydraulic buffer, and when the drill bit contacts the positioned and fixed upper part of the automobile door frame, the buffer head of the hydraulic buffer abuts against the limiting block.

[0011] According to the blind hole processing apparatus for the upper product of the first aspect embodiment of the present invention, the drilling component further includes a second mounting plate fixed to the second platform, the first mounting plate is slidably connected to the second mounting plate through a guide rail slider structure, the first driving member is fixed to the second mounting plate and is drively connected to the first mounting plate, wherein the first driving member is a second cylinder, the first mounting plate is provided with two first limiting blocks, the second mounting plate is provided with a second limiting block, and the second limiting block is located between the two first limiting blocks.

[0012] According to a first aspect embodiment of the present invention, the blind hole processing apparatus for the upper part of the product includes a positioning member having a positioning groove that matches the shape of the upper part of an automobile door frame, and a pressing member located on the side of the positioning groove. The pressing member includes a third cylinder, a first connecting member, and a second connecting member. One end of the first connecting member is hinged to the cylinder shaft of the third cylinder, and the other end is fixed to the pre-pressure block. One end of the second connecting member is hinged to the cylinder body of the third cylinder, and the other end is hinged to the middle part of the first connecting member. The pre-pressure block is driven to rotate to be closer to or further away from the positioning groove by means of the third cylinder.

[0013] According to the blind hole processing apparatus for the upper part of the product according to the first aspect of the present invention, the fixing component further includes a lifting assembly for lifting the upper part of the car door frame that is positioned and fixed in the positioning groove, and a positioning assembly for positioning the positioning hole of the upper part of the car door frame. The lifting assembly includes a fourth cylinder and a lifting block disposed in the fourth cylinder. The lifting block is made of urethane or rubber.

[0014] According to the first aspect of the present invention, the blind hole processing device for the upper part of the product includes a limiting component comprising a fixed base and a fifth cylinder. The guide member is slidably disposed on the fixed base via a guide rail slider structure. The fifth cylinder is fixed to the fixed base and is pulsatorically connected to the guide member. The guide member is provided with a plurality of guide holes for the drill bit to pass through. Under the drive of the fifth cylinder, the guide holes can move to the processing position of the blind hole of the upper part of the car door frame that is aligned with the fixed position.

[0015] According to a second aspect of the present invention, a method for processing blind holes is provided, using the above-described blind hole processing apparatus for the product described above, comprising the following steps:

[0016] S1. Position the upper strip of the car door frame on the positioning component, and press the component to drive the pre-pressing block to move above the positioning component, thereby pressing and fixing the positioned upper strip of the car door frame.

[0017] S2. The limit component moves to drive the guide to the feed path of the drill bit, and keeps the position of the guide unchanged until the machining is completed.

[0018] S3. Start the drilling assembly and keep the drill bit speed at 90r / s. Then drive the drill bit to move towards the processing position of the blind hole of the upper strip of the car door frame at a feed speed of 50-100mm / s. When the drill bit is processing the blind hole of the upper strip of the car door frame, the drill bit is in the state of penetrating the guide.

[0019] S4. The drilling assembly drives the drill bit back to its original position, and the first driving component drives the drill bit to translate so that the drill bit can continue to process at least one blind hole.

[0020] S5. After processing is completed, the drill bit, guide, and preload block are returned to their original positions.

[0021] The above-mentioned blind hole processing method has at least the following effects: it solves the problem that existing hole processing equipment cannot process blind holes; at the same time, the blind hole processing device of the above product can realize the automatic processing of blind holes without manual processing or intervention, effectively improving production efficiency; in addition, using this method to process blind holes can also avoid the problems of drill bit vibration and inaccurate drilling during automatic blind hole processing; furthermore, it can continuously process multiple blind holes, effectively improving the processing efficiency of blind holes.

[0022] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0024] Figure 1 This is a schematic diagram of the blind hole processing device for the product described in this embodiment of the invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the blind hole processing device for the product described in this embodiment of the invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the structure of the fixing component in an embodiment of the present invention. Figure 1 ;

[0027] Figure 4This is a schematic diagram of the structure of the fixing component in an embodiment of the present invention. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the drilling component in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the drilling assembly in an embodiment of the present invention. Figure 1 ;

[0030] Figure 7 This is a schematic diagram of the drilling assembly in an embodiment of the present invention. Figure 2 ;

[0031] Figure 8 This is a schematic diagram of the drilling assembly in an embodiment of the present invention. Figure 3 ;

[0032] Figure 9 This is a schematic diagram of the blind hole processing device for the product described in this embodiment of the invention. Figure 3 ;

[0033] Figure 10 This is a schematic diagram of the structure of the upper strip of the car door frame in an embodiment of the present invention. Detailed Implementation

[0034] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0036] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0037] In the description of this invention, unless otherwise explicitly defined, terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0038] Reference Figure 10 In this embodiment, the upper part 400 of the car door frame includes a first connecting part 410 with a cavity and a second connecting part 420 adjacent to the first connecting part 410. The thickness of the first connecting part 410 is relatively thin and cannot withstand large pressure. The blind hole 411 is provided on the first connecting part 410. Most existing processing equipment for solid feature holes uses punching to punch out the hole feature, but it cannot be used to process the blind hole 411. It is also impossible to improve the existing punching equipment to process the blind hole 411. Therefore, the current method of processing the blind hole 411 is all done manually. However, the efficiency of manual processing of the blind hole 411 is low, and it is impossible to process multiple hole positions at the same time. It is also impossible to guarantee the accuracy of the drilling position of the blind hole 411.

[0039] Therefore, such as Figure 1 , Figure 2 , Figure 9 As shown, this embodiment of the invention provides a blind hole processing device for an upper product, specifically including a frame 100, at least two sets of fixing components 200, at least one set of drilling components 300, and a limiting component 220. The frame 100 is provided with a first platform and a second platform 110. The first platform is horizontally arranged, and the second platform 110 is inclinedly arranged on the side of the first platform. The existing automotive door frame upper strip 400 is generally designed with blind holes 411 near both ends. In order to avoid deformation caused by torque during the machining of the blind holes 411 of the automotive door frame upper strip 400, at least two sets of fixing components 200 are provided. The two sets of fixing components 200 are spaced apart on the first platform and support the positions of the blind holes 411 to be machined at the ends of the automotive door frame upper strip 400. When blind holes 411 are also designed at other positions of the automotive door frame upper strip 400, the fixing components 200 can be appropriately increased as needed to better machine the blind holes 411. In addition, a waste box 120 for collecting drilling waste is provided on the frame 100 below the fixing components 200.

[0040] Among them, such as Figure 3 and Figure 4As shown, the fixing component 200 includes a positioning member 211, a clamping member 230, and a fixing base 210 as an installation reference. The fixing base 210 is fixed to the first platform. The positioning member 211 and the clamping member 230 are both fixed to the fixing base 210. The positioning member 211 is used to position the upper part of the car door frame 400. The clamping member 230 has a pre-pressing block 232 that can be flipped over to be above the positioning member 211. The pre-pressing block 232 is used to press and fix the upper part of the car door frame 400 positioned on the positioning member 211. The positioning member 211 supports the position of the blind hole 411 to be machined on the upper part of the car door frame 400, and the pre-pressing block 232 presses and fixes the upper part of the car door frame 400 to ensure that no displacement occurs when drilling the blind hole 411.

[0041] like Figure 9 As shown, the drilling component 300 is configured according to the number of blind holes 411 on the upper strip of the car door frame 400. When the number of blind holes 411 on the upper strip of the car door frame 400 exceeds four, two sets of drilling components 300 can be configured, with one set of drilling components 300 processing two blind holes 411, which can effectively improve the processing efficiency of the blind holes 411. Specifically, as shown... Figure 5 As shown, the drilling component 300 includes a drilling assembly and a first drive member 320. The drilling assembly is slidably disposed on the second platform 110. The drilling assembly has a drill bit 332 that can move toward the machining position of the positioned and fixed upper edge of the car door frame 400. The first drive member 320 is drively connected to the drilling assembly and is used to drive the drill bit 332 to translate along a direction perpendicular to the drilling direction, so that the drill bit 332 can translate to the machining position of the next blind hole 411 of the upper edge of the car door frame 400, so that the drill bit 332 can machine at least one blind hole 411 of the upper edge of the car door frame 400. In addition, the limiting component 220 includes a guide member 223 that can move between the positioning member 211 and the drilling component 300. The guide member 223 is used to guide the drill bit 332 to align with the machining position of the positioned and fixed upper edge of the car door frame 400 blind hole 411.

[0042] When machining the blind hole 411 of the upper strip 400 of the car door frame, the upper strip 400 of the car door frame is first positioned on the positioning member 211. Then, the upper strip 400 of the car door frame is pressed and fixed to the positioning member 211 by the pre-pressure block 232. Next, the limiting component 220 is activated, causing the guide member 223 to move onto the feed path of the drill bit 332. Then, the drilling component is activated, driving the drill bit 332 to rotate and feed towards the machining position of the blind hole 411 of the positioned and fixed upper strip 400 of the car door frame. Before the drill bit 332 touches the upper strip 400 of the car door frame, the guide member 223 guides the drill bit 332 to drill accurately at the correct machining position of the blind hole 411, avoiding the drill bit 332 from shaking during the drilling process and failing to drill accurately, thus ensuring the machining quality of the blind hole 411 in automated machining. Compared to existing technologies, this method can accurately drill blind holes 411 without damaging the upper strip of the car door frame 400, solving the problem that existing hole processing equipment cannot process blind holes 411. It eliminates the need for manual drilling of blind holes 411, enabling automated processing of blind holes 411. Furthermore, after the drill bit 332 completes the processing of one blind hole 411, the drill bit 332 returns to its original position. Because the drilling assembly is slidably set on the second platform 110, the first driving component 320 can drive the drill bit 332 to translate, thereby adjusting the drill bit 332 to the processing position of the next blind hole 411. Then, the drill bit 332 is driven again to automatically feed and drill the blind holes 411, thus realizing the drilling of all blind holes 411 of the upper strip of the car door frame 400, effectively improving the production efficiency of the upper strip of the car door frame 400.

[0043] In this embodiment, as Figures 5 to 7 As shown, the drilling assembly includes a first mounting plate 311, a second drive member 330, and a third drive member 340. The first mounting plate 311 is slidably connected to the second platform 110. The second drive member 330 is mounted on the first mounting plate 311 and includes a hollow shaft 335 capable of linear reciprocating motion. The drill bit 332 is rotatably mounted on the hollow shaft 335. The third drive member 340 is mounted on the second drive member 330 and is connected to the drill bit 332. The third drive member 340 drives the drill bit 332 to rotate, thereby enabling the drill bit 332 to drill the blind hole 411. The third drive member 340 is used to control the feed speed and feed direction of the drill bit 332 so that the blind hole 411 can be automatically processed smoothly.

[0044] Specifically, a first rotating shaft 331 and a second rotating shaft are disposed within the hollow shaft 335. The first rotating shaft 331 is rotatably mounted on the hollow shaft 335 via bearings. One end of the first rotating shaft 331 is fixed to the drill bit 332, and the other end is slidably connected to one end of the second rotating shaft via a spline structure. The other end of the second rotating shaft is drive-connected to a third driving member 340, which is also rotatably mounted on the hollow shaft 335. During operation, the torque generated by the third driving member 340 is transmitted to the second rotating shaft. This design allows the second rotating shaft to slide while transmitting torque to the first rotating shaft 331, facilitating automatic feed drilling of the drill bit 332. Preferably, the second driving member 330 is a first cylinder, and the third driving member 340 is a motor. The motor is drive-connected to the second rotating shaft via a synchronous belt structure, and the cylinder shaft of the first cylinder is the hollow shaft 335.

[0045] In some embodiments, a hydraulic buffer 333 is provided outside the hollow shaft 335, and a limiting block 334 is provided on the second drive member 330. The limiting block 334 is located on the movement path of the hydraulic buffer 333. When the drill bit 332 contacts the fixed and positioned upper bar of the car door frame 400, the buffer head of the hydraulic buffer 333 abuts against the limiting block 334. As the drill bit 332 continues to drill the blind hole 411, the feed rate of the drill bit 332 can be kept stable under the action of the hydraulic buffer 333, so as to avoid the excessive load on the upper bar of the car door frame 400 caused by the excessively fast feed rate, thereby damaging the upper bar of the car door frame 400.

[0046] like Figures 6 to 8 As shown, the drilling component 300 also includes a second mounting plate 310 fixed to the second platform 110. The first mounting plate 311 is slidably connected to the second mounting plate 310 through a guide rail slider structure. The first driving component 320 is fixed to the second mounting plate 310 and is connected to the first mounting plate 311 in a transmission manner. The first driving component 320 is a second cylinder. Two first limiting blocks 314 are provided on the first mounting plate 311, and a second limiting block 213 is provided on the second mounting plate 310. The second limiting block 213 is located between the two first limiting blocks 314. All the actuating components of the drilling component 300 are assembled on the second mounting plate 310, making the drilling component 300 modular, which facilitates the disassembly and assembly of the drilling component 300, and also facilitates the rapid addition of drilling components 300 to the second platform 110. The first limiting block 314 and the second limiting block 213 can effectively limit the translation range of the first mounting plate 311. The distance between the two first limiting blocks 314 is determined according to the distance between two adjacent blind holes 411, so that when the second limiting block 213 abuts against the first limiting block 314, the position of the drill bit 332 fed to the upper bar 400 of the car door frame is the processing position of the blind hole 411, which makes it easy to quickly determine the processing position of the blind hole 411. During mass production, no manual intervention or adjustment is required.

[0047] In other embodiments, the positioning member 211 has a positioning groove that matches the shape of the upper strip of the car door frame 400. The pressing member 230 is located on the side of the positioning groove. The pressing member 230 includes a third cylinder 231, a first connector 234, and a second connector 233. One end of the first connector 234 is hinged to the cylinder shaft of the third cylinder 231, and the other end is fixed with a pre-pressing block 232. One end of the second connector 233 is hinged to the cylinder body of the third cylinder 231, and the other end is hinged to the middle of the first connector 234. The first connector 234, the second connector 233, and the cylinder body of the third cylinder 231 together form a flipping structure. The pre-pressing block 232 is driven by the third cylinder 231 to rotate closer to or further away from the positioning groove, thereby pressing and fixing the upper strip of the car door frame 400 that is positioned and fixed in the positioning groove. It should be noted that the pre-pressing block 232 is made of rubber or urethane to avoid damaging the upper strip of the car door frame 400.

[0048] Furthermore, the fixing component 200 also includes a lifting assembly for lifting the upper door frame strip 400, which is positioned and fixed in the positioning groove, and a positioning assembly 250 for positioning the positioning holes 421 of the upper door frame strip 400. The lifting assembly includes a fourth cylinder 240 and a lifting block 241 disposed on the fourth cylinder 240. The lifting block 241 is made of urethane or rubber. When all the blind holes 411 of the upper door frame strip 400 are processed, and the drill bit 332, guide 223, and preload block 232 return to their original positions, the fourth cylinder 240 actuates to drive the lifting block 241 to lift the upper door frame strip 400 located in the positioning groove, making it easier for workers to collect. The positioning component 250 is provided with a positioning pin that can cooperate with the positioning hole 421 of the car door frame upper strip 400. Through the cooperation of the positioning pin, the positioning hole 421 and the positioning groove, each car door frame upper strip 400 can be accurately positioned, ensuring that the blind hole 411 of each car door frame upper strip 400 can be accurately processed.

[0049] In some other embodiments, the limiting component 220 includes a fixed base 221 and a fifth cylinder 222. The fixed base 221 is fixed to the fixed base 210. The guide 223 is slidably disposed on the fixed base 221 through a guide rail slider structure. The fifth cylinder 222 is fixed to the fixed base 221 and is connected to the guide 223 in a transmission manner. The guide 223 is provided with a plurality of guide holes 223a for the drill bit 332 to pass through. The diameter of the guide holes 223a is 0.3 to 1 mm larger than the diameter of the drill bit 332. Under the drive of the fifth cylinder 222, the guide holes 223a can move to the processing position of the blind hole 411 of the upper strip of the car door frame 400 that is aligned and fixed. This facilitates the correction of the drill bit 332 to the correct feed path through the guide holes 223a before the drill bit 332 is fed into the upper strip of the car door frame 400, so that the processing quality of the blind hole 411 of the upper strip of the car door frame 400 is guaranteed.

[0050] Furthermore, the present invention also provides a blind hole processing method, using the blind hole processing apparatus of the above-mentioned product, specifically including the following steps:

[0051] S1. Position the upper strip of the car door frame 400 on the positioning member 211. The pressing member 230 is activated, driving the pre-pressing block 232 to move above the positioning member 211, thereby pressing and fixing the positioned upper strip of the car door frame 400.

[0052] S2. Then the limiting component 220 is activated, driving the guide 223 to move onto the feed path of the drill bit 332, and keeping the position of the guide 223 unchanged until the machining is completed.

[0053] S3. Then, start the drilling assembly and keep the rotation speed of drill bit 332 at 90 r / s. Then, drive drill bit 332 to move towards the machining position of blind hole 411 of the positioned upper strip of the car door frame 400 at a feed speed of 50-100 mm / s. When drilling blind hole 411 of upper strip of car door frame 400, drill bit 332 is in the state of penetrating guide 223. The guide 223 ensures that there will be no excessive vibration or deviation of drill bit 332 from the start of drilling blind hole 411 to the completion of drilling blind hole 411, so that the machining quality of blind hole 411 is guaranteed. The rotation speed of drill bit 332 is kept at 90 r / s, which can maintain a certain amount of drilling while coordinating with the feed speed to achieve a gradual drilling process. Drill bit 332 ensures that the upper strip of car door frame 400 will not be damaged during drilling.

[0054] S4. After a blind hole 411 is drilled, the drilling assembly drives the drill bit 332 back to its original position. The first driving member 320 drives the drill bit 332 to translate, so that the drill bit 332 can move to another feed path that can feed to the next blind hole 411, so that the drill bit 332 can continue to process at least one blind hole 411.

[0055] S5. After processing is completed, the drill bit 332, guide 223 and pre-compression block 232 return to their original positions, and the worker can then remove the processed car door frame top strip 400 and proceed with the processing of the blind hole 411 of the next car door frame top strip 400.

[0056] The blind hole processing device and method described above can effectively solve the problem that existing hole processing equipment cannot process blind holes 411. At the same time, the blind hole processing device of the above product can realize the automatic processing of blind holes 411 without manual processing or intervention, which can effectively improve production efficiency. In addition, the method of processing blind holes 411 can avoid the problems of drill bit 332 shaking and inaccurate drilling during the automatic processing of blind holes 411. Furthermore, it can continuously process multiple blind holes 411, which can effectively improve the processing efficiency of blind holes 411.

[0057] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A blind hole processing device for an upper product, characterized in that: include A frame (100) on which a first platform and a second platform (110) are provided; At least two sets of fixing components (200) are spaced apart on the first platform. The fixing components (200) include positioning members (211) and clamping members (230). The positioning members (211) are used to position the upper part of the car door frame (400). The clamping members (230) have a pre-pressing block (232) that can be flipped over the positioning members (211). The pre-pressing block (232) is used to press and fix the upper part of the car door frame (400) that is fixed to the positioning members (211). At least one set of drilling components (300), each drilling component (300) including a drilling assembly and a first drive member (320), the drilling assembly being slidably disposed on a second platform (110), the drilling assembly having a drill bit (332) capable of moving toward a machining position of a fixedly positioned upper edge of an automotive door frame (400), the first drive member (320) being driveably connected to the drilling assembly, the first drive member (320) being used to drive the drill bit (332) to translate along a direction perpendicular to the drilling direction, so that the drill bit (332) can perform machining of at least one blind hole (411) in the upper edge of the automotive door frame (400); and The limiting assembly (220) includes a guide (223) movable between the positioning member (211) and the drilling member (300), the guide (223) being used to guide the drill bit (332) to align with the machining position of the blind hole (411) of the fixedly positioned upper strip of the car door frame (400); The limiting component (220) includes a fixed base (221) and a fifth cylinder (222). The guide (223) is slidably disposed on the fixed base (221) through a guide rail slider structure. The fifth cylinder (222) is fixed to the fixed base (221) and is connected to the guide (223) in a transmission manner. The guide (223) is provided with a plurality of guide holes (223a) for the drill bit (332) to pass through. Under the drive of the fifth cylinder (222), the guide holes (223a) can move to the processing position of the blind hole (411) of the fixed and positioned upper strip (400) of the car door frame. The diameter of the guide hole (223a) is 0.3 to 1 mm larger than the diameter of the drill bit (332).

2. The blind hole processing device for the upper product according to claim 1, characterized in that: The drilling assembly includes a first mounting plate (311), a second drive member (330), and a third drive member (340). The first mounting plate (311) is slidably connected to the second platform (110). The second drive member (330) is mounted on the first mounting plate (311). The second drive member (330) includes a hollow shaft (335) capable of linear reciprocating motion. The drill bit (332) is rotatably mounted on the hollow shaft (335). The third drive member (340) is mounted on the second drive member (330) and is drively connected to the drill bit (332). The drill bit (332) is driven to rotate by the third drive member (340).

3. The blind hole processing device for the upper product according to claim 2, characterized in that: The hollow shaft (335) is provided with a first rotating shaft (331) and a second rotating shaft. The first rotating shaft (331) is rotatably mounted on the hollow shaft (335) through a bearing. One end of the first rotating shaft (331) is fixed to the drill bit (332), and the other end is slidably connected to one end of the second rotating shaft through a spline structure. The other end of the second rotating shaft is connected to the third driving member (340).

4. The blind hole processing device for the upper product according to claim 3, characterized in that: The second driving component (330) is a first cylinder, and the third driving component (340) is a motor. The motor is connected to the second rotating shaft through a synchronous belt structure.

5. The blind hole processing apparatus for the upper product according to any one of claims 2 to 4, characterized in that: The hollow shaft (335) is provided with a hydraulic damper (333), and the second drive member (330) is provided with a limiting block (334). The limiting block (334) is located on the movement path of the hydraulic damper (333). When the drill bit (332) contacts the fixed upper bar (400) of the car door frame, the buffer head of the hydraulic damper (333) abuts against the limiting block (334).

6. The blind hole processing apparatus for the upper product according to any one of claims 2 to 4, characterized in that: The drilling component (300) further includes a second mounting plate (310) fixed to the second platform (110). The first mounting plate (311) is slidably connected to the second mounting plate (310) through a guide rail slider structure. The first driving component (320) is fixed to the second mounting plate (310) and is connected to the first mounting plate (311) in a transmission manner. The first driving component (320) is a second cylinder. The first mounting plate (311) is provided with two first limiting blocks (314), and the second mounting plate (310) is provided with a second limiting block (213). The second limiting block (213) is located between the two first limiting blocks (314).

7. The blind hole processing device for the upper product according to claim 1, characterized in that: The positioning member (211) has a positioning groove that matches the shape of the upper part (400) of the car door frame. The pressing member (230) is located on the side of the positioning groove. The pressing member (230) includes a third cylinder (231), a first connector (234) and a second connector (233). One end of the first connector (234) is hinged to the cylinder shaft of the third cylinder (231), and the other end is fixed to the pre-pressing block (232). One end of the second connector (233) is hinged to the cylinder body of the third cylinder (231), and the other end is hinged to the middle of the first connector (234). The pre-pressing block (232) is driven to rotate to be close to or away from the positioning groove by the third cylinder (231).

8. The blind hole processing device for the upper product according to claim 7, characterized in that: The fixing component (200) further includes a lifting assembly for lifting the upper part of the car door frame (400) which is fixed in the positioning groove, and a positioning assembly (250) for positioning the positioning hole (421) of the upper part of the car door frame (400). The lifting assembly includes a fourth cylinder (240) and a lifting block (241) disposed in the fourth cylinder (240). The lifting block (241) is made of urethane or rubber.

9. A method for processing blind holes, employing the blind hole processing apparatus for the upper product as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S1. Position the upper strip (400) of the car door frame onto the positioning member (211), and the pressing member (230) is activated to drive the pre-pressing block (232) to move above the positioning member (211), thereby pressing and fixing the positioned upper strip (400) of the car door frame. S2, the limiting component (220) is activated, driving the guide (223) to move onto the feed path of the drill bit (332), and keeping the position of the guide (223) unchanged until the machining is completed; S3. Start the drilling assembly and keep the rotation speed of the drill bit (332) at 90 r / s. Then drive the drill bit (332) to move towards the processing position of the blind hole (411) of the positioned upper strip of the car door frame (400) at a feed speed of 50~100 mm / s. When the drill bit (332) processes the blind hole (411) of the upper strip of the car door frame (400), the drill bit (332) is in the state of penetrating the guide (223). S4. The drilling assembly drives the drill bit (332) back to its original position, and the first driving member (320) drives the drill bit (332) to translate so that the drill bit (332) can continue to process at least one blind hole (411); S5. After processing is completed, the drill bit (332), guide (223) and preload block (232) return to their original positions.

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