High efficiency double-head drilling device

Abstract

The present invention provides a high-efficiency double-head drilling device, which comprises a workbench, a drilling machine module and a supporting module; the workbench is designed with a rotating truncated table; the drilling machine module is installed directly above the workbench, and a cross arm adjusted by a feed pressure rod is designed on the telescopic end of the main spindle box of the drilling machine module, and a drill shaft driven by a motor is symmetrically installed on the cross arm; the supporting module comprises a cross column centrally arranged above the drilling machine module, and vertical brackets are designed at both ends of the cross column; the high-efficiency double-head drilling device is a device that fixes and supports the main spindle box through a symmetrical fixed structure, thereby balancing the reaction force received during drilling, so that the main spindle box can ensure its accuracy after long-term drilling operation; at the same time, the double drill bit structure can save drilling time and improve drilling efficiency.

Description

Technical Field

[0001] The invention relates to the field of machining, in particular to a drilling device. Background Art

[0002] Drilling refers to the operation of machining a hole in a solid material with a drill bit; in mechanical processing, a drilling machine is usually used to machine holes in the workpiece; for drilling holes in small workpieces, a commonly used drilling machine is a vertical drilling machine, which includes a workbench on which the workpiece is placed, and above the workbench there is a spindle box for mounting the drill bit fixed by a column, and the spindle box includes a pressure rod structure for feeding operation; when the vertical drilling machine is in use, the workpiece is first fixed on the workbench, and then the user manually presses the feed pressure rod to make the drill drill a hole on the surface of the workpiece; in this type of operation, only one hole can be machined at a time, so the user needs to repeatedly position the workpiece to achieve the effect of multi-hole machining; in the multi-hole machining process, the user can only adjust the hole spacing through measuring tools.

[0003] At the same time, since the traditional drilling machine adopts a single-sided cantilever structure, the horizontal cantilever is connected and assembled with the vertical fixed column frame. When the drilling machine is working, the drill bit applies downward pressure to drill holes, which will apply upward torque to the cantilever. This will easily cause torsional deformation between the cantilever and the vertical column frame when used for a long time, thereby affecting the drilling accuracy of the drill bit. At the same time, in order to make the cantilever more firmly fixed, the shell and the frame need to be designed to be thicker, which wastes materials and occupies more space. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide a high-efficiency double-head drilling device, which fixes and supports the spindle box through a symmetrical fixed structure, thereby balancing the reaction force during drilling, so that the spindle box can maintain its accuracy after long-term drilling operations; at the same time, the double drill head structure can save drilling time and improve drilling efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is: the high-efficiency double-head drilling device includes a workbench, a drilling machine module and a supporting module; the workbench is designed with a rotating round table; the drilling machine module is installed directly above the workbench, and the telescopic end of the drilling machine module spindle box is designed with a cross arm adjusted by a feed pressure rod, and the cross arm is symmetrically installed with a drill shaft driven by a motor; the supporting module includes a cross column centrally arranged above the drilling machine module, and vertical brackets are designed at both ends of the cross column.

[0006] Preferably, a slide rail is designed on the cross arm, and the drill shaft is slidably assembled in the slide rail; the lower end of the cross arm is designed with lateral adjustment screws that are respectively transmission-connected to the drill shaft, and adjustment knobs connected by bevel gears are designed between the adjustment screws; a fixed housing with a built-in limit ring is designed at the assembly point of the adjustment screw and the adjustment knob.

[0007] Preferably, the rotating end of the feed pressure rod is designed with a truncated cone rotating module; the truncated cone rotating module is designed with a transverse main rod fixedly mounted on the feed pressure rod, and the end of the main rod is designed with a vertical auxiliary rod connected through a bevel gear transmission; wherein, half of the bevel gear on the main rod adopts a bevel gear structure, and the other half is designed as a cylindrical structure; a one-way bearing is designed inside the bevel gear on the auxiliary rod, and the outer ring of the one-way bearing is connected and installed with the bevel gear of the auxiliary rod, and the inner ring is connected and installed with the end of the auxiliary rod; a wrapping shell with a built-in limit ring is designed at the assembly point of the main rod and the auxiliary rod; the lower end of the auxiliary rod and the outer ring surface of the rotating truncated cone are designed with gears that mesh with each other.

[0008] Preferably, the wrapping shell is designed with a connecting rod fixed to the bracket to support the wrapping shell and ensure that the transmission of the main rod and the auxiliary rod can operate normally.

[0009] Preferably, the rotating truncated table is designed with strip-shaped grooves arranged at intervals to ensure that the drill bit can completely drill through the workpiece and can also play a role in chip removal.

[0010] The beneficial effects of the present invention are as follows: when the efficient double-head drilling device is in use, the user places the workpiece on the rotating table and starts the motor; the user manually presses the feed pressure rod to drive the drill shaft to move downward, so that the drill drills a hole on the surface of the workpiece; in this process, the drill shaft symmetrically installed on the cross arm simultaneously drills holes at the left and right ends of the workpiece surface; therefore, one drilling operation can drill two symmetrical holes on the surface of the workpiece, and the drilling time is reduced by half, which greatly improves the drilling efficiency; in addition, since the drilling machine module is installed below the center of the support module; therefore, when drilling, the symmetrical drill shafts on the left and right ends are simultaneously subjected to the same magnitude of reverse force; the drill shaft transmits the reverse force through the cross arm to the symmetrical bracket through the cross column, thereby avoiding deformation of the connection between the spindle box and the cross column when the reverse force is applied, thereby ensuring the accuracy of the drilling machine module when drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a front view of the high-efficiency double-end drilling device of the present invention.

[0012] Figure 2 yes Figure 1A partial enlarged view of point A in the middle.

[0013] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle.

[0014] Figure 4 yes Figure 3 Cross-sectional view of CC. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0016] like Figure 1 , Figure 2 As shown in the embodiment, the efficient double-head drilling device is a device that fixes and supports the spindle box through a symmetrical fixed structure, thereby balancing the reaction force received during drilling, so that the spindle box can ensure its accuracy after long-term drilling operations; at the same time, the double drill bit structure can save drilling time and improve drilling efficiency. It includes a workbench 1, a drilling machine module 2 and a support module 3; the workbench 1 is designed with a rotating round table 11; the drilling machine module 2 is installed directly above the workbench 1, and the telescopic end of the spindle box of the drilling machine module 2 is designed with a cross arm adjusted by a feed pressure rod 21, and a drill shaft 22 driven by a motor is symmetrically installed on the cross arm; the support module 3 includes a cross column 31 centrally arranged above the drilling machine module 2, and vertical brackets 32 are designed at both ends of the cross column 31.

[0017] When the efficient double-head drilling device is in use, the user places the workpiece on the rotating table 11 and starts the motor; the user manually presses the feed pressure rod 21 to drive the drill shaft 22 to move downward, so that the drill drills a hole on the surface of the workpiece; during this process, the drill shaft 22 symmetrically installed on the cross arm simultaneously drills holes at the left and right ends of the workpiece surface; therefore, one drilling operation can drill two symmetrical holes on the surface of the workpiece, and the drilling time is reduced by half, which greatly improves the drilling efficiency; in addition, since the drilling machine module 2 is installed below the center of the support module 3; therefore, when drilling, the symmetrical drill shafts 22 at the left and right ends are simultaneously subjected to the same magnitude of reverse force; the drill shaft 22 transmits the reverse force through the cross arm to the symmetrical bracket 32 ​​through the cross column 31, thereby avoiding deformation of the connection between the spindle box and the cross column 31 when the spindle box is subjected to the reverse force, thereby ensuring the accuracy of the drilling machine module 2 when drilling.

[0018] like Figure 1 , Figure 2As shown, the cross arm is designed with a slide rail, and the drill shaft 22 is slidably mounted in the slide rail; the lower end of the cross arm is designed with a transverse adjustment screw 42 respectively connected to the drill shaft 22, and an adjustment knob 41 connected by a bevel gear is designed between the adjustment screw 42; the assembly of the adjustment screw 42 and the adjustment knob 41 is designed with a fixed housing with a built-in limit ring. When the hole spacing needs to be adjusted, the user can manually rotate the adjustment knob 41, and the bevel gear on the adjustment knob 41 drives the adjustment screw 42 to rotate, so that the drill shaft 22 slides symmetrically in the cross arm slide rail, so as to achieve the effect of synchronously adjusting the drill shaft 22 to change the hole spacing.

[0019] like Figure 1 , Figure 3 As shown, the rotating end of the feed pressure rod 21 is designed with a truncated cone rotating module; the truncated cone rotating module is designed with a transverse main rod 51 fixedly mounted on the feed pressure rod 21, and the end of the main rod 51 is designed with a vertical auxiliary rod 52 connected by a bevel gear transmission; wherein, half of the bevel gear on the main rod 51 adopts a bevel gear structure, and the other half is designed as a cylindrical structure; a one-way bearing is designed inside the bevel gear on the auxiliary rod 52, and the outer ring of the one-way bearing is connected and installed with the bevel gear of the auxiliary rod 52, and the inner ring is connected and installed with the end of the auxiliary rod 52; the assembly point of the main rod 51 and the auxiliary rod 52 is designed with a wrapping shell with a built-in limit ring; the lower end of the auxiliary rod 52 and the outer ring surface of the rotating truncated cone 11 are designed with gears that mesh with each other. When the user lifts the feed pressure rod 21 after drilling, the feed pressure rod 21 rotates in the opposite direction until the bevel gear part on the main rod 51 meshes with the bevel gear on the auxiliary rod 52 and continues to rotate. At this time, the one-way bearing on the auxiliary rod 52 is locked, so the auxiliary rod 52 also rotates accordingly, thereby driving the rotating table 11 to rotate, thereby achieving the function of rotating drilling of the workpiece; when the user presses the feed pressure rod 21 again, the bevel gear part on the main rod 51 and the bevel gear on the auxiliary rod 52 rotate in the opposite direction until they are separated. During this process, the one-way bearing on the auxiliary rod 52 rotates freely, so the auxiliary rod 52 stops rotating, and the rotating table 11 also stops rotating, so that the drilling operation can be performed.

[0020] like Figure 3 , Figure 4 As shown, the wrapping shell is designed with a connecting rod fixed to the bracket 32, and its function is to support the wrapping shell and ensure that the transmission of the main rod and the auxiliary rod can operate normally.

[0021] like Figure 1 As shown, the rotating truncated table 11 is designed with strip grooves arranged at intervals, the function of which is to enable the drill bit to completely drill through the workpiece and to remove chips at the same time.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An efficient double-head drilling device, comprising a workbench (1), a drilling machine module (2) and a support module (3), wherein the workbench (1) is provided with a rotating truncated table (11); the drilling machine module (2) is installed directly above the workbench (1), and a cross arm which is adjusted by a feed pressure rod (21) is provided on the telescopic end of the main spindle box of the drilling machine module (2), characterized in that: A drill shaft (22) driven by a motor is symmetrically mounted on the cross arm; the support module (3) comprises a cross column (31) centrally arranged above the drilling machine module (2), and vertical brackets (32) are arranged at both ends of the cross column (31); a slide rail is arranged on the cross arm, and the drill shaft (22) is slidably mounted in the slide rail; a lateral adjustment screw rod (42) is arranged at the lower end of the cross arm and is respectively connected to the drill shaft (22); an adjustment knob (41) connected by a bevel gear is arranged between the adjustment screw rods (42); a fixed housing with a built-in limit ring is arranged at the assembly point of the adjustment screw rod (42) and the adjustment knob (41); a round table rotation module is arranged at the rotating end of the feed pressure rod (21); the round table rotation module is arranged A transverse main rod (51) is fixedly mounted on the feed pressure rod (21), and the end of the main rod (51) is designed with a vertical auxiliary rod (52) connected by a bevel gear transmission; wherein half of the bevel gear on the main rod (51) adopts a bevel gear structure, and the other half is designed as a cylindrical structure; a one-way bearing is designed inside the bevel gear on the auxiliary rod (52), the outer ring of the one-way bearing is connected and installed with the bevel gear of the auxiliary rod (52), and the inner ring is connected and installed with the end of the auxiliary rod (52); a wrapping shell with a built-in limit ring is designed at the assembly point of the main rod (51) and the auxiliary rod (52); the lower end of the auxiliary rod (52) and the outer ring surface of the rotating table (11) are designed with gears that mesh with each other; and a connecting rod fixed to the bracket (32) is designed on the wrapping shell.

2. The high-efficiency double-end drilling device according to claim 1 is characterized in that: The rotating truncated table (11) is designed with strip-shaped grooves arranged at intervals.

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