Automobile stamping part drilling device

Abstract

The invention provides an automobile stamping part drilling device, and relates to the technical field of stamping part machining, the automobile stamping part drilling device comprises a supporting table body, two first fixing plates are slidably mounted at the top end of the supporting table body, and two first driving rods are fixedly mounted at the top end of each first fixing plate; the top ends of the two first driving rods are fixedly provided with the same second fixing plate, the inner sides of the two second fixing plates are rotationally provided with the same mounting frame, through the thrust of a third driving rod, a connecting plate drives a friction plate to be attached to the outer edge of a hole, and meanwhile the outer side of the friction plate is designed to be a conical arc surface. A supporting box drives two driving wheels to rotate, the outer surfaces of the driving wheels are in butt joint with a gear ring, a rotating lantern ring is driven to rotate in a connecting plate, two friction plates rotate in a reciprocating mode, the actual size of a drilled hole can be closer to the design size through deburring, and the size precision is improved; and tight and accurate matching between the parts is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of stamping part processing, and more specifically, particularly relates to a drilling device for automobile stamping parts. Background Art

[0002] Automotive stamping parts, as the name implies, are metal stamping parts that constitute automotive parts. Among automotive stamping parts, some become automotive parts directly after stamping, while the other parts need to be processed by welding, machining, painting and other processes before they can become automotive parts. In practical applications, the drilling device for stamping parts usually requires the following technologies:

[0003] 1. The workbench is used to place stamping parts and provide a stable processing platform for the workpiece;

[0004] 2. Spindle box: The spindle is the core component of the drilling equipment, which is used to install the drill bit and provide rotational power;

[0005] 3. Feed mechanism, which controls the feed movement of the drill bit, i.e. the movement of the drill bit towards the workpiece;

[0006] 4. Cooling system: During the drilling process, the cooling system is used to cool the drill bit and workpiece to reduce the cutting temperature;

[0007] Install the stamping part on the fixture, adjust the clamping force of the fixture to keep the stamping part stable, and control the feed depth of the drill bit according to the set drilling depth. The cooling system usually consists of a coolant tank, a pump, a nozzle, etc., and the coolant is sprayed to the cutting part of the drill bit and the workpiece. However, the drilling equipment has the following shortcomings;

[0008] 1. The drill bit is installed perpendicular to the work surface. For complex workpieces with inclined surfaces, curved surfaces or multi-angle features, the fixed-angle drill bit cannot drill holes at the appropriate angle. Multiple clamping and adjustment of the workpiece position not only wastes a lot of time, but also increases the labor intensity of the operator.

[0009] 2. During the drilling process, the drill bit will produce a large amount of chips when cutting the workpiece material. If the chip removal is not smooth, some chips may remain inside the hole. The drill bit is prone to irregular cutting when drilling, thus forming burrs on the outside of the hole. The burrs will cause the actual size to exceed the design tolerance range. During the assembly process, it will cause poor fit and uneven gaps. Summary of the invention

[0010] In order to solve the above technical problems, the present invention provides a drilling device for automobile stamping parts to solve the above problems.

[0011] A drilling device for automobile stamping parts includes a support platform body, two first fixed plates are slidably installed on the top of the support platform body, two first driving rods are fixedly installed on the top of each of the first fixing plates, the same second fixed plate is fixedly installed on the top of the two first driving rods, the same mounting frame is rotatably installed on the inner sides of the two second fixing plates, a driving box is fixedly installed inside the mounting frame, a positioning plate is rotatably installed on the bottom end of the driving box, a guide frame is fixedly installed on the surface of the positioning plate, two third driving rods are fixedly installed on the bottom end of the guide frame, a support box is fixedly installed on the bottom end of each of the third driving rods, and the same connecting plate is fixedly installed on the side ends of the two support boxes.

[0012] Preferably, a rotating table is rotatably installed on the top of the support platform body, a fixed base is fixedly installed on the top of the support platform body, two adjusting bases are slidably installed on the top of the fixed base, a rotating ring is rotatably installed inside each of the connecting plates, a gear ring is fixedly installed on the top of each of the rotating rings, a driving wheel is rotatably installed inside each of the support boxes, a driving shaft is rotatably installed on the bottom end of the driving box, a drill rod is slidably installed on the end of the driving shaft, two docking plates are slidably installed inside the connecting plates, a friction plate is fixedly installed on the bottom end of each of the docking plates, and two adjusting slide bars are fixedly installed on the side ends of each of the docking plates.

[0013] Preferably, a transmission rod is rotatably installed on the two inner side walls of the mounting frame, a bevel gear is fixedly installed on the top of each transmission rod, a positioning plate is provided on the side end portion of each mounting frame, a guide slider is slidably installed on the side end portion of each second fixed plate, a return spring is fixedly installed on the side end portion of each guide slider, an insertion rod is fixedly installed on the side end portion of each return spring, a push rod is rotatably installed on the side end portion of each guide slider, a gear sleeve is fixedly installed on the top end of the drill rod, the top end of the drill rod is hollow in design and docked with the drive shaft, two second driving rods are fixedly installed on the top end of the guide frame, a card seat is fixedly installed on the two side ends of the guide frame, and a motor, a sliding bearing, a dividing plate and a positioning pin are provided inside the rotating table.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the present invention, the drill rod is driven to rotate by a driving box, and the drill rod drives the gear sleeve to rotate. At the same time, the bevel gear and the gear sleeve are in a fit state, driving the two transmission rods to rotate inside the mounting frame. At the same time, one end of the transmission rod is rotationally connected to the side end of the second fixed plate. A positioning plate is provided on one side of the mounting frame. The rotation of the transmission rod drives the mounting frame to rotate between the two second fixed plates to adjust the deflection angle of the drill rod. For stamping parts with irregular shapes, the deflection ability of the drill rod can enable the equipment to drill holes at different angles without frequently adjusting the position of the workpiece, thereby better adapting to complex workpiece geometries and improving processing flexibility.

[0016] In the present invention, the thrust of the third driving rod is used to drive the friction plate to fit the outer edge of the hole through the connecting plate. At the same time, the outer side of the friction plate is designed with a conical arc surface. The two driving wheels are driven to rotate through the support box. The outer surface of the driving wheel is connected to the gear ring, and the rotating ring is driven to rotate inside the connecting plate. The two friction plates reciprocate with each other, and removing burrs can make the actual size of the drilled hole closer to the designed size, improve the dimensional accuracy, and ensure that the fit between the parts is tighter and more accurate.

[0017] In the present invention, a downward thrust is generated on the guide frame through the second driving rod, so that the guide frame moves downward, and at the same time, the guide frame moves downward synchronously with the drill rod, and the drill rod drives the gear sleeve to disconnect from the bevel gear, and at the same time, the guide frame moves downward to release the squeezing of the push rod, and at the same time, the guide slider is under the action of the return spring, and the return spring generates a thrust on the guide slider, so that the guide slider slides on the side end of the second fixed plate, and at the same time, the guide slider drives the insertion rod to be inserted into the interior of the positioning plate, so as to limit and fix the mounting frame and increase the stability of use.

[0018] In the present invention, by driving two adjusting slide bars, the adjusting slide bars are extended and retracted inside the connecting plate, generating thrust for the docking plate, and a clamping block is installed at the side end of the docking plate. The docking plate moves along a fixed direction, and the spacing between the two friction plates is reduced and they fit together. With the cooperation of the fixed base and the adjusting base, the two friction plates are fitted together and then inserted into the hole. The inside of the hole is flushed through the nozzle at the bottom end of the friction plate, and the debris remaining in the hole is cleaned, and the inside of the hole is cooled at the same time.

[0019] In the present invention, the drill rod is driven to rotate by a driving box, and the drill rod drives the gear sleeve to rotate. At the same time, the bevel gear and the gear sleeve are in a fit state, driving the two transmission rods to rotate inside the mounting frame. At the same time, one end of the transmission rod is rotatably connected to the side end of the second fixed plate. A positioning plate is provided on one side of the mounting frame. The rotation of the transmission rod drives the mounting frame to rotate between the two second fixed plates to adjust the deflection angle of the drill rod. Through the deflection of the drill rod, drilling of multiple angles can be completed in one clamping, reducing the number of clamping times and processing steps of the workpiece, and reducing the processing cost and time.

[0020] In the present invention, a connecting plate is fixed by a third driving rod, two friction plates are installed inside the connecting plate, a plurality of discharge ports are installed at the bottom end of the friction plate, and a hose is installed at the top end of the connecting plate, the hose is directly connected to the docking plate, the spacing between the two friction plates is reduced, and they are fitted to each other under the cooperation of the fixing base and the adjusting base. After the two friction plates are fitted, they are inserted into the inside of the hole, and flushing coolant into the hole can make the coolant mix with the chips more fully, which is convenient for subsequent recycling and processing, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the support platform structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the fixed base structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the mounting frame of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the positioning plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the drive box of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the guide frame of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the friction plate of the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the connecting plate of the present invention;

[0029] Fig. 9 It is a front view of the overall structure of the present invention;

[0030] Fig.10 It is a side view of the overall structure of the present invention.

[0031] In the figure, the corresponding relationship between the component names and the figure numbers is: 11, support platform body; 12, first fixed plate; 13, first driving rod; 14, second fixed plate; 15, mounting frame; 16, driving box; 17, positioning plate; 18, guide frame; 19, push rod; 21, guide slider; 22, reset spring; 23, plug rod; 24, transmission rod; 25, bevel gear; 26, driving shaft; 27, drill rod; 28, gear sleeve; 29, holder; 31, second driving rod; 32, support box; 33, third driving rod; 34, connecting plate; 35, rotating collar; 36, friction plate; 37, gear ring; 38, driving wheel; 39, adjusting slide rod; 41, docking plate; 42, rotating table; 43, fixed base; 44, adjusting base. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0033] See also Figure 1 - Fig.10The present invention provides a drilling device for automobile stamping parts, comprising a support platform 11, wherein two first fixing plates 12 are slidably installed on the top of the support platform 11, two first driving rods 13 are fixedly installed on the top of each first fixing plate 12, the same second fixing plate 14 is fixedly installed on the top of the two first driving rods 13, the same mounting frame 15 is rotatably installed on the inner sides of the two second fixing plates 14, a driving box 16 is fixedly installed inside the mounting frame 15, a positioning plate 17 is rotatably installed on the bottom end of the driving box 16, a guide frame 18 is fixedly installed on the surface of the positioning plate 17, two third driving rods 33 are fixedly installed on the bottom end of the guide frame 18, the guide frame 18 moves upward, one end of a push rod 19 is rotatably connected to a card seat 29, the guide frame 18 moving upward squeezes one end of the push rod 19, the push rod 19 itself is a retractable structure, the extrusion of the guide frame 18 first compresses the push rod 19 itself, and then one end of the push rod 19 is moved in the guide frame The side end of the slider 21 rotates, pushing the guide slider 21 to slide toward the inside of the second fixed plate 14, allowing the guide slider 21 to squeeze the return spring 22 and compress. At the same time, the guide slider 21 drives the insertion rod 23 to slide away from the inside of the positioning plate 17, releasing the limit fixation of the positioning plate 17, and driving the drill rod 27 to rotate through the drive box 16. The drill rod 27 drives the gear sleeve 28 to rotate. At the same time, the bevel gear 25 and the gear sleeve 28 are in a fit state, driving the two transmission rods 24 to rotate inside the mounting frame 15. At the same time, one end of the transmission rod 24 is rotatably connected to the side end of the second fixed plate 14. A positioning plate 17 is provided on one side of the mounting frame 15. Through the rotation of the transmission rod 24, the mounting frame 15 is driven to rotate between the two second fixed plates 14 to adjust the deflection angle of the drill rod 27. The bottom end of each third driving rod 33 is fixedly installed with a support box 32, and the side ends of the two support boxes 32 are fixedly installed with the same connecting plate 34.

[0034] A rotating table 42 is rotatably installed on the top of the support platform body 11, a fixed base 43 is fixedly installed on the top of the support platform body 11, and two adjusting bases 44 are slidably installed on the top of the fixed base 43. A rotating ring 35 is rotatably installed inside each connecting plate 34, and a gear ring 37 is fixedly installed on the top of each rotating ring 35. A driving wheel 38 is rotatably installed inside each supporting box 32. Through the nozzle at the bottom end of the friction plate 36, the inside of the hole is flushed, the debris remaining inside the hole is cleaned, and the inside of the hole is cooled. Through the thrust of the third driving rod 33, the connecting plate 34 drives the friction plate 36 to fit the outer edge of the hole. At the same time, the outer side of the friction plate 36 is a conical arc surface design. The two driving wheels 38 are driven to rotate through the support box 32, and the outer surface of the driving wheel 38 is docked with the gear ring 37. The rotating ring 35 is driven to rotate inside the connecting plate 34. The two friction plates 36 reciprocate with each other, and removing burrs can make the drilling real The actual size is closer to the design size, and the dimensional accuracy is improved. The bottom end of the drive box 16 is rotatably installed with a drive shaft 26, and the end of the drive shaft 26 is slidably installed with a drill rod 27. Two docking plates 41 are slidably installed inside the connecting plate 34, and the bottom end of each docking plate 41 is fixedly installed with a friction plate 36. The side end of each docking plate 41 is fixedly installed with two adjusting slide bars 39. After the two friction plates 36 are fitted, they are inserted into the inside of the hole. Through the nozzle at the bottom end of the friction plate 36, the inside of the hole is flushed, the debris remaining in the hole is cleaned, and the inside of the hole is cooled. Through the thrust of the third drive rod 33, the connecting plate 34 drives the friction plate 36 to fit the outer edge of the hole. At the same time, the outer side of the friction plate 36 is a conical arc surface design. The two driving wheels 38 are driven to rotate through the support box 32. The outer surface of the driving wheel 38 is docked with the gear ring 37, and the rotating ring 35 is driven to rotate inside the connecting plate 34, and the two friction plates 36 rotate back and forth with each other.

[0035] The two inner side walls of the mounting frame 15 are rotatably mounted with transmission rods 24, and a bevel gear 25 is fixedly mounted on the top of each transmission rod 24. A positioning plate 17 is provided on the side end of each mounting frame 15. A guide slider 21 is slidably mounted on the side end of each second fixed plate 14. A return spring 22 is fixedly mounted on the side end of each guide slider 21, and a plug rod 23 is fixedly mounted on the side end of each return spring 22. A push rod 19 is rotatably mounted on the side end of each guide slider 21, and a gear sleeve 28 is fixedly mounted on the top of the drill rod 27, so that the guide frame 18 moves downward, and at the same time, the guide frame 18 moves downward synchronously with the drill rod 27, and the drill rod 27 drives the gear sleeve 28 and the bevel gear 25 is disconnected, and the guide frame 18 moves downward to release the squeezing of the push rod 19. At the same time, the guide slider 21 is under the action of the return spring 22, and the return spring 22 generates a thrust on the guide slider 21, so that the guide slider 21 slides on the side end of the second fixed plate 14. At the same time, the guide slider 21 drives the insertion rod 23 to insert into the interior of the positioning plate 17 to limit and fix the mounting frame 15. The top of the drill rod 27 is a hollow design, which is docked with the drive shaft 26. Two second drive rods 31 are fixedly installed on the top of the guide frame 18, and the two side ends of the guide frame 18 are fixedly installed with a holder 29. The interior of the rotating table 42 is provided with a motor, a sliding bearing, a dividing plate and a positioning pin.

[0036] Working principle:

[0037] The first step is to move the stamping parts and place them on the top of the rotating table 42. A motor is installed inside the rotating table 42 to provide rotational power. The power of the motor is transmitted to the rotating table 42 through a transmission belt. A sliding bearing is installed inside the rotating table 42 to allow the rotating table 42 to rotate. The positioning is performed with a locating pin and a base or other fixed structure to ensure the position accuracy of the rotating table 42. At the same time, hydraulic rods are installed on both side ends of the fixed base 43, and the bottom end of the adjusting base 44 is docked and slid with the fixed base 43. The hydraulic rod applies a thrust to the adjusting base 44 to allow the two adjusting bases 44 to slide horizontally and synchronously on the side ends of the fixed base 43. At the same time, the side ends of the adjusting base 44 are docked with the first fixed plate 12. A hydraulic rod is installed on the side ends of the adjusting base 44. The adjusting base 44 is docked with the first fixed plate 12 to push the first fixed plate 12 to slide horizontally on the side ends of the adjusting base 44. The seat 44 and the movement of the first fixed plate 12 adjust the position of the drill rod 27. By driving the synchronous extension and retraction of the first drive rod 13, the first drive rod 13 supports and guides the second fixed plate 14. At the same time, the compression of the first drive rod 13 allows the drive box 16 to move downward, allowing the drill rod 27 to drill holes in different positions of the stamping part. In order to ensure the accuracy and stability of the entire process, the rotation accuracy of the rotating table 42 is guaranteed by precise sliding bearings, and the locating pins ensure the precise docking of the rotating table 42 with the base or other fixed structures. The horizontal synchronous sliding of the adjustment base 44 is achieved through the precise control of the hydraulic rod, ensuring the precise positioning of the drill rod 27. In addition, the extension and retraction of the first drive rod 13 is controlled by a precise drive system to ensure that the drill rod 27 can accurately align with the predetermined position of the stamping part for drilling operations. The design of the entire system is aimed at improving production efficiency and processing accuracy, while reducing the complexity of operation and improving safety.

[0038] The two second driving rods 31 are extended and retracted, and the two ends of the second driving rods 31 are respectively connected to the mounting frame 15 and the guide frame 18, and the second driving rod 31 drives the guide frame 18 to move upward. At the same time, the guide frame 18 and the drill rod 27 are in a sleeved state, and the drill rod 27 can slide inside the guide frame 18. The top of the drill rod 27 is a hollow design, which is connected with the driving shaft 26. The driving shaft 26 and the drill rod 27 can slide with each other, and the drill rod 27 moves upward. The top of the drill rod 27 drives the gear sleeve 28 to fit and rub with the two bevel gears 25 respectively, and at the same time, the guide frame 18 moves upward, and one end of the push rod 19 is rotatably connected with the card seat 29, and the guide frame 18 moving upward squeezes one end of the push rod 19. The push rod 19 itself is a retractable structure. The squeezing of the guide frame 18 first compresses the push rod 19 itself, and then one end of the push rod 19 rotates at the side end of the guide slider 21, pushing the guide slider 21 to slide toward the inside of the second fixed plate 14, allowing the guide slider 21 to squeeze the reset spring 22 to compress, and at the same time When the guide slider 21 drives the insertion rod 23 to slide away from the inside of the positioning plate 17, the limit fixation of the positioning plate 17 is released, and the drill rod 27 is driven to rotate through the drive box 16. The drill rod 27 drives the gear sleeve 28 to rotate. At the same time, the bevel gear 25 and the gear sleeve 28 are in a state of being fitted, driving the two transmission rods 24 to rotate inside the mounting frame 15. At the same time, one end of the transmission rod 24 is rotatably connected to the side end of the second fixed plate 14. A positioning plate 17 is provided on one side of the mounting frame 15. Through the rotation of the transmission rod 24, the mounting frame 15 is driven to rotate between the two second fixed plates 14 to adjust the deflection angle of the drill rod 27. For stamping parts with irregular shapes, the deflection ability of the drill rod 27 can enable the equipment to drill holes at different angles without frequently adjusting the position of the workpiece, thereby better adapting to complex workpiece geometries and improving processing flexibility. Through the deflection of the drill rod 27, drilling at multiple angles can be completed in one clamping, reducing the number of clamping times and processing steps of the workpiece, and reducing processing costs and time.

[0039] In the second step, after the drilling angle of the drill rod 27 is precisely adjusted, the operator applies a downward thrust to the guide frame 18 through the second driving rod 31, causing the guide frame 18 to move downward. As the guide frame 18 descends, it will drive the drill rod 27 to move downward synchronously. In this process, the drill rod 27 will drive the connection between the gear sleeve 28 and the bevel gear 25 to be disconnected. At the same time, the descending action of the guide frame 18 will release the squeezing state of the push rod 19. The guide slider 21 will slide toward the side end of the second fixed plate 14 under the elastic force of the return spring 22. The return spring 22 applies a thrust to the guide slider 21 to ensure that it remains stable during the sliding process. During the movement, the guide slider 21 will drive the insertion rod 23 to insert into the interior of the positioning plate 17, thereby adjusting the mounting frame 15. The guide frame 18 is fixed in a limited position, which enhances the stability of use. At the same time, the descending action of the guide frame 18 will first stretch the push rod 19, and the push rod 19 will deflect at the side end of the guide slider 21, exerting a pulling force on the guide slider 21, prompting the guide slider 21 to move. At the bottom end of the guide frame 18, it is connected to the connecting plate 34 through the third driving rod 33. Two friction plates 36 are installed inside the connecting plate 34. The bottom end of the friction plate 36 is provided with a plurality of drain ports for discharging possible accumulated liquid or impurities. A hose is installed at the top of the connecting plate 34, and the hose is directly connected to the docking plate 41. In the cutting fluid cooling system, the pump is the core conveying device. Its function is to extract cutting fluid from the liquid storage tank and convey it to the drilling position by pressurization to achieve effective cooling of the drilling position.

[0040] After the drill rod 27 drills the hole, the second driving rod 31 drives the guide frame 18 to move upward, allowing the drill rod 27 to move upward and leave the inside of the hole. At the same time, the third driving rod 33 is stretched in the opposite direction, and the third driving rod 33 generates a downward thrust on the support box 32, which is opposite to the moving direction of the drill rod 27. Through the thrust of the third driving rod 33, the connecting plate 34 drives the friction plate 36 to move toward the surface of the hole, and by driving the two adjusting slide bars 39, the adjusting slide bars 39 are extended and retracted inside the connecting plate 34, generating a thrust on the docking plate 41. A card block is installed at the side end of the docking plate 41. The docking plate 41 moves along a fixed direction, and the distance between the two friction plates 36 is reduced, and they fit each other. Under the cooperation of the fixed base 43 and the adjustable base 44, After the two friction plates 36 are fitted together, they are inserted into the inside of the hole. The inside of the hole is flushed through the nozzle at the bottom of the friction plate 36, and the debris remaining in the hole is cleaned. At the same time, the inside of the hole is cooled. Through the thrust of the third driving rod 33, the connecting plate 34 drives the friction plate 36 to fit the outer edge of the hole. At the same time, the outer side of the friction plate 36 is a conical arc surface design. The two driving wheels 38 are driven to rotate through the support box 32. The outer surface of the driving wheel 38 is connected to the gear ring 37, and the rotating ring 35 is driven to rotate inside the connecting plate 34. The two friction plates 36 reciprocate with each other to remove burrs. The actual size of the drilled hole can be closer to the designed size, the dimensional accuracy is improved, and the fit between the parts is ensured to be tighter and more accurate.

[0041] The embodiments of the invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the invention and to enable those of ordinary skill in the art to understand the invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A drilling device for automobile stamping parts, comprising a support platform (11), characterized in that: Two first fixing plates (12) are slidably mounted on the top of the support platform (11), two first driving rods (13) are fixedly mounted on the top of each of the first fixing plates (12), the same second fixing plate (14) is fixedly mounted on the top of the two first driving rods (13), the same mounting frame (15) is rotatably mounted on the inner sides of the two second fixing plates (14), a driving box (16) is fixedly mounted inside the mounting frame (15), a positioning plate (17) is rotatably mounted on the bottom end of the driving box (16), a guide frame (18) is fixedly mounted on the surface of the positioning plate (17), two third driving rods (33) are fixedly mounted on the bottom end of the guide frame (18), a supporting box (32) is fixedly mounted on the bottom end of each of the third driving rods (33), and the same connecting plate (34) is fixedly mounted on the side ends of the two supporting boxes (32).

2. A drilling device for automobile stamping parts as claimed in claim 1, characterized in that: A rotating platform (42) is rotatably mounted on the top of the support platform body (11), a fixed base (43) is fixedly mounted on the top of the support platform body (11), and two adjustment bases (44) are slidably mounted on the top of the fixed base (43).

3. The automobile stamping part drilling device according to claim 1, characterized in that: A rotating collar (35) is rotatably mounted inside each of the connecting plates (34), and a gear ring (37) is fixedly mounted on the top of each of the rotating collars (35).

4. The automobile stamping part drilling device according to claim 1, characterized in that: A driving wheel (38) is rotatably mounted inside each of the support boxes (32), a driving shaft (26) is rotatably mounted at the bottom end of the driving box (16), and a drill rod (27) is slidably mounted at the end of the driving shaft (26).

5. The automobile stamping part drilling device according to claim 1, characterized in that: Two docking plates (41) are slidably mounted inside the connecting plate (34), a friction plate (36) is fixedly mounted on the bottom end of each docking plate (41), and two adjustment slide bars (39) are fixedly mounted on the side end of each docking plate (41).

6. The automobile stamping part drilling device according to claim 1, characterized in that: Transmission rods (24) are rotatably mounted on the two inner side walls of the mounting frame (15), a bevel gear (25) is fixedly mounted on the top end of each transmission rod (24), and a positioning plate (17) is provided on the side end of each mounting frame (15).

7. The automobile stamping part drilling device according to claim 1, characterized in that: A guide slider (21) is slidably mounted on the side end of each second fixed plate (14), a return spring (22) is fixedly mounted on the side end of each guide slider (21), an insertion rod (23) is fixedly mounted on the side end of each return spring (22), and a push rod (19) is rotatably mounted on the side end of each guide slider (21).

8. The automobile stamping part drilling device as claimed in claim 4, characterized in that: The top end of the drill rod (27) is fixedly mounted with a gear sleeve (28). The top end of the drill rod (27) is hollow and butt-jointed with the drive shaft (26).

9. The automobile stamping part drilling device according to claim 1, characterized in that: Two second driving rods (31) are fixedly mounted on the top of the guide frame (18), and a clamping seat (29) is fixedly mounted on the two side ends of the guide frame (18).

10. The automobile stamping part drilling device according to claim 2, characterized in that: A motor, a sliding bearing, a dividing plate and positioning pins are arranged inside the rotating platform (42).

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