Drilling device for metal workpiece production

Abstract

The invention discloses a drilling device for metal workpiece production, the drilling device is seated on the ground through an equipment support, a hydraulic lifting rod is fixedly mounted at the rear end of the upper surface of the equipment support, and a drilling driving controller is fixed at the lifting end of the upper end of the hydraulic lifting rod; a machining shaft column is connected to the output end of the lower end of the drilling driving controller, a tooth groove is formed in the machining shaft column, and a machining base is installed on the outer portion of the hydraulic lifting rod in a sleeving mode. A mounting frame is fixedly mounted on the outer side of the drilling driving controller, and a maintenance cover is fixedly mounted on the outer side of the mounting frame. The drilling device for metal workpiece production is internally provided with the tool changing maintenance mechanism for assisting oblique angle machining of the metal workpiece and the vibration mechanism for assisting chip removal of the machining tool, so that the deviation phenomenon caused by inclined hole forming of the metal workpiece is avoided, the surface of the drilling tool is kept clean, and subsequent workpiece machining is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of metal workpiece drilling, in particular to a drilling device for metal workpiece production. Background Art

[0002] Metal workpieces include aluminum, iron, copper, alloys and other materials. Different metal materials have different hardness. When drilling metal workpieces, the hardness of the workpiece directly affects the difficulty of drilling. During the rotary drilling process of drilling machinery and equipment, the processing accuracy and service life of the drilling tool are related to the material properties of the metal workpiece and the drilling processing method;

[0003] When opening an inclined hole on the surface of a metal workpiece, the cross-edge of the drill bit contacts the surface of the workpiece first. The surface of the workpiece is in an inclined state corresponding to the bottom of the drill bit. The cross-edge of the drill bit rotates downward to produce a large negative rake angle, which is prone to deflection during the drilling process. In addition, after continuous hole opening processing, some processing waste and coolant sprayed during processing are adhered to the surface of the drilling tool. This part of the adhesion affects the daily maintenance and service life of the drilling tool, as well as the accuracy of subsequent drilling processing by the drilling equipment.

[0004] Therefore, it is necessary to design a drilling device for metal workpiece production in view of the above problems. Summary of the invention

[0005] The object of the present invention is to provide a drilling device for metal workpiece production, so as to solve the problems mentioned in the above background technology that the inclined holes in metal workpieces are prone to deflection and the surface adhesion of the drilling tool affects its service life and processing accuracy.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drilling device for metal workpiece production, the drilling device is placed on the ground through an equipment support, a hydraulic lifting rod is fixedly installed at the rear end of the upper surface of the equipment support, and a drilling drive controller is fixed at the upper lifting end of the hydraulic lifting rod;

[0007] A drilling device for metal workpiece production, comprising:

[0008] The lower output end of the drilling drive controller is connected to a processing shaft column, a tooth groove is provided inside the processing shaft column, and a processing seat is installed on the outer sleeve of the hydraulic lifting rod;

[0009] A mounting frame is fixedly mounted on the outer side of the drilling drive controller, a maintenance cover is fixedly mounted on the outer side of the mounting frame, a servo motor is fixedly mounted on the lower surface of the mounting frame, a driving shaft is connected to the lower output end of the servo motor, and a tool changing cover is fixedly mounted on the lower surface of the driving shaft, a tool changing mechanism is arranged inside the tool changing cover, and a tool maintenance mechanism is arranged inside the maintenance cover;

[0010] The outside of the driving shaft is provided with a vibration mechanism for controlling the tool changing cover to generate vibration, so as to control the tool changing cover and the processing tool to rotate rapidly during the tool changing process, so that the waste chips on the tool are vibrated and centrifugally discharged.

[0011] Preferably, tool-changing mechanical arms are symmetrically fixed on the left and right sides of the inner bottom surface of the tool-changing cover, and the tool-changing mechanical arms include an internal electric-driven telescopic rod fixed on the inner bottom surface of the tool-changing cover, and a limit block is fixed on the upper lifting end of the internal electric-driven telescopic rod, and a control driver is fixed on the upper side of the limit block, and the upper output end of the control driver is connected to a short-distance card block;

[0012] The tool changing mechanism includes through grooves opened on the left and right sides of the upper end of the tool changing cover, and circular grooves are symmetrically opened on the left and right sides of the lower surface of the tool changing cover, and a hole drill is penetrated inside the left circular groove, and a conical drill is penetrated inside the right circular groove. The hole drill and the conical drill are rotatably installed in the height control platform, and the upper ends of the hole drill and the conical drill are connected to gear blocks.

[0013] Preferably, the short-distance clamping block is magnetically assembled on the outer side of the height control platform, and the height control platform moves upward to drive the gear block to move upward, and the gear block is engaged and assembled with the lower end of the processing shaft column through the tooth groove.

[0014] Preferably, two groups of heat insulation covers are fixed at the middle position inside the tool change cover, and fans are installed on the inner side walls of the heat insulation covers, and heating wires are distributed in an annular connection on the sides of the heat insulation covers.

[0015] Preferably, the tool maintenance mechanism includes a screw rod rotatably connected to the inside of the maintenance cover, the external thread of the screw rod is equipped with an internal thread block, and a micro driver is fixed to the lower side of the internal thread block, and the lower output end of the micro driver is connected to a long-distance clamp block.

[0016] Preferably, the internal thread block is engaged with the inner wall of the maintenance cover to form an up and down sliding structure, and a long-distance card block is rotatably connected to the lower part of the internal thread block through a micro-driver, and the long-distance card block is magnetically assembled on the outer side of the height control platform.

[0017] Preferably, the vibration mechanism includes two groups of bosses fixedly mounted on the outside of the driving shaft, a guide cylinder is fixedly mounted on the lower surface of the mounting frame, and a sliding rod is sleeved below the guide cylinder, a metal spring is connected between the upper end of the sliding rod and the inner bottom surface of the guide cylinder, and a conical platform is fixed on the outside of the sliding rod, the conical platform is correspondingly arranged below the guide cylinder, and a vibration ring is fixedly mounted on the bottom of the sliding rod.

[0018] Preferably, the bosses are distributed up and down, and the corresponding directions of the two groups of bosses are opposite, and the bosses are correspondingly arranged on the outer sides of the conical platform.

[0019] Preferably, the vibration ring is correspondingly distributed at a position directly above the tool change cover, and an elastic sliding structure is formed above the vibration ring through a sliding rod and a metal spring and a guide cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. Two drilling tools, a hole drill and a tapered drill, are arranged inside the tool change cover. The tool change cover is controlled to rotate by running the drive motor, and the hole drill and the tapered drill are switched to the corresponding position below the processing axis column. The short-distance clamp block is magnetically clamped on the outer side of the control platform, and the hole drill or the tapered drill can be pushed to move up and connect with the processing axis column. First, a tapered centering hole is opened on the surface of the metal workpiece through the tapered drill, and then the hole drill is controlled to move down to drill the corresponding tapered centering hole position on the surface of the metal workpiece, so as to reduce the negative rake angle caused by the downward rotation of the drill bit cross blade, and avoid the situation of deflection when opening an inclined hole;

[0022] The long-distance clamp block is magnetically clamped on the outer side of the control platform, which can push the hole drill or cone drill upward into the maintenance cover. The drilling tool in the maintenance cover is dried and maintained by wind heat, thereby increasing the service life of the drilling tool;

[0023] 2. Control the tool change cover to turn quickly during the tool change process. The drive shaft drives the boss to rotate synchronously. The boss rotates and contacts the outer wall of the tapered table. Under the extrusion effect, the slide rod is controlled to elastically move up and down through the bottom of the guide cylinder. The vibration ring under the slide rod acts up and down on the surface of the tool change cover, causing the tool change cover to generate vibration force. The two sets of drilling tools passing through the bottom of the tool change cover are subjected to vibration force during the rapid rotation process, which accelerates the centrifugal separation of the processing waste chips adhered to the surface and keeps the surface of the drilling tool clean for subsequent drilling operations. It is also beneficial to the maintenance of the drilling tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the processing seat elevation structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the vertical structure of the tool change cover of the present invention;

[0027] Figure 4 This is a schematic diagram of the cross-sectional structure of the tool change cover of the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the curing cover of the present invention;

[0029] Figure 6 This is a schematic diagram of the vertical structure of the internal thread block of the present invention;

[0030] Figure 7This is a schematic diagram of the elevation structure of the short-distance card block of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the heat insulation cover of the present invention;

[0032] Fig. 9 It is a schematic diagram of the structure of the vibration ring of the present invention.

[0033] In the figure: 1. Equipment support; 2. Hydraulic lifting rod; 3. Drilling drive controller; 4. Processing shaft column; 41. Tooth groove; 5. Processing seat; 6. Mounting frame; 7. Maintenance cover; 71. Screw; 72. Internal thread block; 73. Micro drive; 74. Long distance block; 8. Servo motor; 9. Drive shaft; 91. Boss; 10. Tool change cover; 11. Internal electric drive telescopic rod; 111. Limit block; 112. Control drive; 113. Short distance block; 12. Through groove; 13. Circular groove; 14. Hole drill; 15. Conical drill; 16. Control height platform; 17. Tooth block; 18. Heat insulation cover; 181. Fan; 182. Heating wire; 19. Guide cylinder; 191. Sliding rod; 192. Metal spring; 193. Conical platform; 194. Vibration ring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] like Figure 1-Figure 8 As shown, a tool changing and maintenance mechanism is provided in the drilling device, which is convenient for opening an inclined hole on the surface of a metal workpiece and for maintaining the drilling tool. The specific structure is as follows:

[0037] The drilling device is placed on the ground through an equipment support 1, a hydraulic lifting rod 2 is fixedly installed on the rear end of the upper surface of the equipment support 1, and a drilling drive controller 3 is fixed on the upper lifting end of the hydraulic lifting rod 2; the lower output end of the drilling drive controller 3 is connected to a processing shaft column 4, a tooth groove 41 is provided inside the processing shaft column 4, and a processing seat 5 is sleeved on the outside of the hydraulic lifting rod 2; a mounting frame 6 is fixedly installed on the outer side of the drilling drive controller 3, and a maintenance cover 7 is fixedly installed on the outer side of the mounting frame 6, and a servo motor 8 is fixedly installed on the lower surface of the mounting frame 6, a driving shaft 9 is connected to the lower output end of the servo motor 8, and a tool change cover 10 is fixedly installed on the lower surface of the driving shaft 9;

[0038] A tool changing mechanism is arranged inside the tool changing cover 10, and the tool changing mechanism includes a through groove 12 opened on the left and right sides of the upper end of the tool changing cover 10, and circular grooves 13 are symmetrically opened on the left and right sides of the lower surface of the tool changing cover 10, and a hole drill 14 is penetrated inside the left circular groove 13, and a conical drill 15 is penetrated inside the right circular groove 13, and the hole drill 14 and the conical drill 15 are rotatably installed in the control height platform 16, and the upper ends of the hole drill 14 and the conical drill 15 are connected to a gear block 17; tool changing mechanical arms are symmetrically fixed on the left and right sides of the inner bottom surface of the tool changing cover 10, and the tool changing mechanical arms include an internal electric drive telescopic rod 11 fixed on the inner bottom surface of the tool changing cover 10, A limit block 111 is fixed to the upper lifting end of the internal electric drive telescopic rod 11, and a control driver 112 is fixed to the upper side of the limit block 111, and a short-distance block 113 is connected to the upper output end of the control driver 112; two groups of heat insulation covers 18 are fixed to the middle position of the inner part of the tool change cover 10, and a fan 181 is installed on the inner wall of the heat insulation cover 18, and a heating wire 182 is distributed in a ring connection on the side of the heat insulation cover 18; the short-distance block 113 is magnetically assembled on the outer side of the control height platform 16, and the upward movement of the control height platform 16 drives the gear block 17 to move upward, and the gear block 17 is engaged and assembled with the lower end of the processing shaft column 4 through the tooth groove 41;

[0039] A tool maintenance mechanism is provided inside the maintenance cover 7, and the tool maintenance mechanism includes a screw rod 71 rotatably connected to the inside of the maintenance cover 7, the external thread of the screw rod 71 is equipped with an internal thread block 72, and a micro driver 73 is fixed to the lower side of the internal thread block 72, and the lower output end of the micro driver 73 is connected to a long-distance card block 74; the internal thread block 72 is engaged with the inner side wall of the maintenance cover 7 to form an up and down sliding structure, and the lower side of the internal thread block 72 is rotatably connected to a long-distance card block 74 through the micro driver 73, and the long-distance card block 74 is magnetically assembled on the outer side of the control height platform 16;

[0040] The metal workpiece is placed on the fixture for adjusting the processing direction on the processing seat 5, and the servo motor 8 is operated to control the driving shaft 9 to rotate. The driving shaft 9 drives the fixed tool change cover 10 below to rotate synchronously. The tool change cover 10 rotates to alternate the hole drill 14 and the tapered drill 15 to the corresponding left and right positions. The tapered drill 15 is first controlled to rotate corresponding to the lower part of the processing shaft column 4. The short-distance card block 113 is magnetically assembled on the outer side of the control height platform 16 above the tapered drill 15 to limit the position of the control height platform 16. The internal electric drive telescopic rod 11 is operated to push the short-distance card block 113 to move upward. The short-distance card block 113 controls the tapered drill 15 and the tooth block 17 to move upward synchronously through the magnetic control height platform 16, so that the tooth block 17 above the tapered drill 15 is connected to the processing shaft column 4 through the tooth groove 41. The drilling drive controller 3 is operated to control the rotation of the processing shaft column 4. The processing shaft column 4 drives the tapered drill 15 assembled below to rotate synchronously through the engaging structure. The hydraulic lifting rod 2 is operated to control the drilling tool to move downward, and a tapered centering hole is pre-opened on the surface of the metal workpiece. Then the drilling structure is controlled to move upward, and the servo motor 8 is operated to control the tool change cover 10 to rotate, and the corresponding positions of the hole drill 14 and the tapered drill 15 are alternated. The above steps are repeated to control the hole drill 14 to engage with the processing shaft column 4, and the hole drill 14 is controlled to rotate and move downward. The lower cross edge of the hole drill 14 first contacts the tapered centering hole on the surface of the metal workpiece. The negative rake angle of the hole drill 14 when it moves downward and contacts the surface of the metal workpiece is small, and it is not easy to cause deviation, thereby improving the accuracy of opening the inclined hole and avoiding damage to the drilling tool.

[0041] When one of the two sets of drilling tools in the tool change cover 10 is used in docking with the processing shaft column 4, the other set of tools is idle under the maintenance cover 7. At this time, the operating driver controls the screw rod 71 to rotate, and the internal thread block 72 is controlled to slide downward under the action of the thread transmission. The internal thread block 72 drives the micro-driver 73 and the long-distance block 74 to move downward, so that the long-distance block 74 moves to the side of the control height platform 16. The micro-driver 73 is operated to control the long-distance block 74 to rotate, so that the long-distance block 74 rotates and is magnetically attracted to the side of the control height platform 16. Then, the control direction driver 112 is operated to drive the short-distance block 113 to rotate, so that the short-distance block 113 Rotate and separate from the side of the height control platform 16, continue to operate the screw rod 71 to drive the internal thread block 72 to move upward, and under the magnetic attraction of the long-distance clamping block 74, drive the height control platform 16 and the hole drill 14 or the tapered drill 15 to move upward into the interior of the maintenance cover 7, the lower part of the maintenance cover 7 is interconnected with the interior of the tool change cover 10, and the heat insulation cover 18 divides the interior of the tool change cover 10 into two groups of left and right spaces. The fan 181 and the heating wire 182 in the heat insulation cover 18 on the right side are operated, and the wind heat generated acts on the outside of the drilling tool inside the maintenance cover 7, and the cutting liquid adhered to the surface of the drilling tool during drilling is dried to avoid oxidation reaction on the surface of the drilling tool;

[0042] Embodiment 2

[0043] like Figure 3 and Fig. 9 As shown, a vibration mechanism is provided in the drilling device, which can separate the waste chips adhering to the surface of the drilling tool during the tool change process. The specific structure is as follows:

[0044] The vibration mechanism includes two groups of bosses 91 fixedly sleeved on the outside of the driving shaft 9, a guide cylinder 19 is fixedly mounted on the lower surface of the mounting frame 6, and a sliding rod 191 is sleeved below the guide cylinder 19, a metal spring 192 is connected between the upper end of the sliding rod 191 and the inner bottom surface of the guide cylinder 19, and a conical platform 193 is fixed on the outside of the sliding rod 191, the conical platform 193 is correspondingly arranged below the guide cylinder 19, and a vibration ring 194 is fixedly installed on the bottom of the sliding rod 191; the two groups of bosses 91 are distributed up and down, and the corresponding directions of the two groups of bosses 91 are opposite, and the bosses 91 are correspondingly arranged on the outer side of the conical platform 193; the vibration ring 194 is correspondingly distributed at the position just above the tool change cover 10, and the upper part of the vibration ring 194 forms an elastic sliding structure with the guide cylinder 19 through the sliding rod 191 and the metal spring 192;

[0045] During the process of operating the servo motor 8 to control the tool changing cover 10 to rotate and change tools, the driving shaft 9 drives the external boss 91 to rotate synchronously, and the boss 91 rotates and contacts the outer inclined surface of the conical platform 193. Under the contact and extrusion of the two groups of bosses 91, the conical platform 193 moves upward or downward. The conical platform 193 is fixed on the outside of the sliding rod 191, which controls the sliding rod 191 to slide up and down under the guide cylinder 19. With the auxiliary action of the metal spring 192, the vibration ring 194 fixed on the lower end face of the sliding rod 191 vibrates on the upper surface of the tool changing cover 10, and the tool changing cover 10 generates vibration and transmits it to the left and right groups of drilling tools. The two groups of drilling tools are subjected to vibration when they rotate quickly to change tools, which can accelerate the centrifugal flight of processing waste chips and part of the processing coolant adhering to the surface, keep the surface of the drilling tool clean, so as to facilitate the subsequent drilling process, and also facilitate the maintenance of the drilling tool.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for metal workpiece production, the drilling device being placed on the ground via a device support (1), a hydraulic lifting rod (2) being fixedly mounted at the rear end of the upper surface of the device support (1), and a drilling drive controller (3) being fixed at the upper lifting end of the hydraulic lifting rod (2); It is characterized in that include: The lower output end of the drilling drive controller (3) is connected to a processing shaft column (4), a tooth groove (41) is provided inside the processing shaft column (4), and a processing seat (5) is sleeved and installed outside the hydraulic lifting rod (2); A mounting frame (6) is fixedly mounted on the outer side of the drilling drive controller (3), a maintenance cover (7) is fixedly mounted on the outer side of the mounting frame (6), a servo motor (8) is fixedly mounted on the lower surface of the mounting frame (6), a drive shaft (9) is connected to the lower output end of the servo motor (8), and a tool changing cover (10) is fixedly mounted on the lower surface of the drive shaft (9), a tool changing mechanism is arranged inside the tool changing cover (10), and a tool maintenance mechanism is arranged inside the maintenance cover (7); The outside of the driving shaft (9) is provided with a vibration mechanism for controlling the tool changing cover (10) to generate vibration, so as to control the tool changing cover (10) and the machining tool to vibrate and centrifugally discharge waste chips on the tool during the rapid rotation of the tool changing process.

2. A drilling device for metal workpiece production according to claim 1, characterized in that: Tool changing mechanical arms are symmetrically fixed on the left and right sides of the inner bottom surface of the tool changing cover (10), and the tool changing mechanical arms include an internal electric drive telescopic rod (11) fixed on the inner bottom surface of the tool changing cover (10), and a limit block (111) is fixed on the upper lifting end of the internal electric drive telescopic rod (11), and a control driver (112) is fixed on the upper side of the limit block (111), and the upper output end of the control driver (112) is connected to a short distance card block (113); The tool changing mechanism comprises through grooves (12) provided on the left and right sides of the upper end of the tool changing cover (10), and circular grooves (13) are symmetrically provided on the left and right sides of the lower surface of the tool changing cover (10), and a hole drill (14) is penetrated inside the left circular groove (13), and a conical drill (15) is penetrated inside the right circular groove (13), and the hole drill (14) and the conical drill (15) are rotatably installed in the height control platform (16), and the upper ends of the hole drill (14) and the conical drill (15) are connected to a gear block (17).

3. A drilling device for metal workpiece production according to claim 2, characterized in that: The short-distance clamping block (113) is magnetically assembled on the outer side of the height control platform (16). The height control platform (16) moves upward to drive the gear block (17) to move upward. The gear block (17) is assembled and engaged with the lower end of the processing shaft column (4) through the tooth groove (41).

4. A drilling device for metal workpiece production according to claim 2, characterized in that: Two groups of heat insulation covers (18) are fixed at the middle position inside the tool change cover (10), and a fan (181) is installed on the inner wall of the heat insulation cover (18), and heating wires (182) are distributed in a circular connection on the side of the heat insulation cover (18).

5. A drilling device for metal workpiece production according to claim 1, characterized in that: The tool maintenance mechanism comprises a screw rod (71) rotatably connected to the inside of the maintenance cover (7), the external thread of the screw rod (71) is equipped with an internal thread block (72), and a micro driver (73) is fixed on the lower side of the internal thread block (72), and the lower output end of the micro driver (73) is connected to a long-distance clamp block (74).

6. A drilling device for metal workpiece production according to claim 5, characterized in that: The internal thread block (72) is engaged with the inner wall of the maintenance cover (7) to form an up-and-down sliding structure, and a long-distance clamping block (74) is rotatably connected to the lower part of the internal thread block (72) through a micro-driver (73), and the long-distance clamping block (74) is magnetically assembled on the outer side of the height control platform (16).

7. A drilling device for metal workpiece production according to claim 1, characterized in that: The vibration mechanism comprises two groups of bosses (91) fixedly sleeved on the outside of the driving shaft (9); a guide cylinder (19) is fixedly mounted on the lower surface of the mounting frame (6); a sliding rod (191) is sleeved below the guide cylinder (19); a metal spring (192) is connected between the upper end of the sliding rod (191) and the inner bottom surface of the guide cylinder (19); and a conical platform (193) is fixedly mounted on the outside of the sliding rod (191); the conical platform (193) is correspondingly arranged below the guide cylinder (19); and a vibration ring (194) is fixedly mounted on the bottom of the sliding rod (191).

8. A drilling device for metal workpiece production according to claim 7, characterized in that: The two groups of bosses (91) are distributed up and down, and the corresponding directions of the two groups of bosses (91) are opposite, and the bosses (91) are correspondingly arranged on the outer side of the conical platform (193).

9. A drilling device for metal workpiece production according to claim 7, characterized in that: The vibration ring (194) is correspondingly distributed at a position directly above the tool change cover (10), and an elastic sliding structure is formed above the vibration ring (194) through a sliding rod (191) and a metal spring (192) and a guide cylinder (19).

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