A step-type drilling machine tool for mechanical processing

Abstract

The present invention provides a step-by-step drilling machine for mechanical processing, which relates to the technical field of drilling machine tools and includes a cooling member; the fixed guide member includes a movable plate and a connecting plate, and the top surface of the connecting plate is fixedly connected to an air pump; the cooling member includes a coolant box, an air pump and a pressure rod, the air pump is fixedly connected to the bottom end of the pressure rod, and the air pump is connected to the coolant box. When the hydraulic rod is started, the connecting longitudinal plate is driven to move, and then the drilling machine and the support plate are driven to move synchronously, the slider slides on the fixed track, and the step-by-step movement is achieved according to the clamping column to complete the hole position movement of the drilling machine, and the electric-controlled telescopic rod is started to move upward through a micro programmable controller, and then the clamping cone is pushed to move upward and clamped between two groups of clamping columns, so that the clamping cone locks the position of the support plate, and the position of the drilling machine after the step-by-step movement is fixed, which solves the problem that it is difficult to achieve step-by-step movement without rising and can be synchronously fixed after step-by-step transfer.

Description

Technical Field

[0001] The invention relates to the technical field of drilling machine tools, and in particular to a step-type drilling machine tool used for mechanical processing. Background Art

[0002] The stepping drilling machine tool uses a stepping mechanism in conjunction with the spindle box and the support to complete the stepping after drilling. Machining refers to the process of changing the shape, size or performance of the workpiece through mechanical equipment. In the field of mechanical processing, the stepping drilling machine tool can be used to complete batch drilling work on the workpiece, thereby improving the work efficiency of mechanical processing.

[0003] However, with the current traditional step-by-step drilling machine tools, after drilling a hole, the drill bit is lifted up, the stepping mechanism drives the spindle box to rise and then step-by-step transfer the distance of a hole position, and after the positioning pin is fixed, the spindle is lowered to drill the next hole. In this process, it is difficult to achieve step-by-step movement without lifting and synchronous fixation after step-by-step transfer; during the drilling process, the drilling position needs to be cooled. The existing cooling device is additionally equipped on the drilling machine tool, and the cooling time and other settings are set separately. It is difficult to automatically achieve cooling during drilling, and there is no need to use an independently designed circuit or control system to reduce production costs; when the workpiece is clamped and fixed before drilling, it is difficult to synchronously realize the positioning of the drilling machine. Summary of the invention

[0004] In view of this, the present invention provides a step-type drilling machine tool for mechanical processing, which has a fixed guide and a cooling member, and can simultaneously realize automatic outflow of coolant for cooling when drilling downward.

[0005] The present invention provides a step-type drilling machine tool for mechanical processing, which specifically includes a base assembly and a cooling member; the base assembly includes a base and a vertical plate, the base and the vertical plate are fixedly and vertically welded together, the front end surface of the vertical plate is fixedly connected with a fixing frame through a bolt assembly, and the top surface of the base is fixedly connected with two groups of linkage members; the bottom surface of the fixing frame is fixedly connected to the top surface of the base, and the left and right sides of the fixing frame are fixedly installed with clamps, and the top surface of the fixing frame is installed with a translation mechanism; the rearmost end of the translation mechanism is fixedly connected to the front end surface of the vertical plate, and the translation mechanism includes a supporting plate and a connecting longitudinal plate, and the top surface of the supporting plate is fixedly connected with a drilling machine, A coolant box is fixedly installed on the top surface of the support plate and the left side of the drilling machine, the connecting longitudinal plate is perpendicular to the support plate and fixedly connected, and the front end surface of the connecting longitudinal plate is fixedly connected to the rear end surface of the drilling machine; a fixed guide is fixedly arranged on the drilling machine; the fixed guide comprises a movable plate and a connecting plate, the bottom surface of the movable plate is fixedly connected to a pressure rod, the connecting plate is fixedly connected to the outside of the drilling machine, four groups of vertical rods are fixedly arranged inside the connecting plate, the vertical rods are movably clamped in the inside of the movable plate, and an air pump is fixedly connected to the top surface of the connecting plate; the cooling component comprises a coolant box, an air pump and a pressure rod, the air pump is fixedly connected to the bottom end of the pressure rod, and the air pump is connected to the coolant box.

[0006] Optionally, the base assembly further includes rollers, the left and right ends of which are movably clamped on the front inner wall of the base through shafts, and the rollers are arranged in a downwardly inclined slope structure from back to front.

[0007] Optionally, a fixed track is provided on the top surface of the fixed frame, and the fixed track is located below the translation mechanism.

[0008] Optionally, the fixed guide also includes a top plate and a first cylinder. The top plate is fixedly connected to the top end of the vertical rod inside the connecting plate. The first cylinder is fixedly installed on the top surface of the top plate. A baffle is fixedly provided on the periphery of the push rod of the first cylinder. The outer diameter of the baffle is larger than the diameter of the circular hole inside the movable plate. The bottom end of the push rod is fixedly connected to the drill bit.

[0009] Optionally, the translation mechanism also includes a clamping column and a hydraulic rod, the clamping column is fixedly connected to the left and right side surfaces of the support plate, the front end of the push rod of the hydraulic rod is fixedly connected to the back side of the connecting longitudinal plate, the rear end of the hydraulic rod is fixedly connected to the front end surface of the vertical plate, and two groups of sliders are fixedly provided on the bottom surface of the support plate, and the sliders are slidably clamped on the fixed rails.

[0010] Optionally, the cooling component also includes a liquid flow tube, which is fixedly connected to the front end of the coolant box. The coolant box is provided with a connecting tube and a liquid inlet. The top end of the connecting tube is connected to the air pump, and the liquid inlet is arranged on the rear side of the bottom end of the connecting tube and the top surface of the coolant box.

[0011] Optionally, the card component includes an electrically controlled telescopic rod and a card cone, and the switch of the card component is arranged on the top surface of the linkage component, a micro programmable controller is provided inside the switch and the circuit is connected to the electrically controlled telescopic rod, the top surface of the electrically controlled telescopic rod is fixedly connected to the card cone by a threaded rod, and the bottom width of the card cone is greater than the spacing between two adjacent groups of card columns.

[0012] Optionally, the linkage part includes a second cylinder, a lifting block, a rotating plate, a pulling plate, a pressing plate and a pressing rod. The second cylinder is fixedly installed on the top surface of the base, and the top end of the push rod of the second cylinder is fixedly connected to the lifting block. The lifting block is internally slidably connected to the rotating plate, the rotating plate is movably connected to the pulling plate through an axis, the rear end of the rotating plate is movably connected to the pressing plate through an axis, the pulling plate and the pressing plate are respectively movably connected to the fixed block on the top surface of the base through an axis, the internal sliding of the pressing plate is connected to the pressing rod, and two groups of blocking plates and a group of pads are fixedly provided on the pressing rod. The diameters of the two groups of blocking plates are larger than the width inside the pressing plate, and the pads are fixedly welded to the bottom end of the pressing rod.

[0013] Optionally, two groups of baffle plates and one group of cushion blocks are fixedly provided on the pressing rod, the diameters of the two groups of baffle plates are larger than the width inside the pressing plate, and the cushion blocks are fixedly welded to the bottom end of the pressing rod.

[0014] Beneficial Effects

[0015] The step-by-step drilling machine tools according to the various embodiments of the present invention are compared with the traditional step-by-step drilling machine tools. When the hydraulic rod is started, it drives the connecting longitudinal plate to move, and then drives the drilling machine and the support plate to move synchronously. The slider slides on the fixed track, realizes step-by-step movement according to the clamping column, completes the hole position movement of the drilling machine, and starts the electric-controlled telescopic rod to move upward through the micro programmable controller, thereby pushing the clamping cone to move upward and clamped between the two groups of clamping columns, so that the clamping cone locks the position of the support plate. The position of the drilling machine is fixed after the step-by-step movement is completed, and step-by-step movement can be performed without rising and can be synchronously fixed after the step-by-step transfer.

[0016] By setting a fixed guide and a cooling part, after the first cylinder is started to drive the push rod to move downward, the push rod drives the movable plate to move downward through the baffle. When the movable plate moves downward, it presses the pressure rod and then presses the air pump. After the air pump is pressed, the coolant inside the coolant box is pressed downward through the connecting pipe, and flows to the drilling workpiece through the liquid flow pipe, so that the workpiece is automatically cooled during drilling. A hose structure is set in the middle of the liquid flow pipe, so that it can be freely rotated at an angle, so that the coolant flow direction meets the cooling needs of drilling at different positions.

[0017] When the second cylinder is started, the lifting block is driven to move through the push rod of the second cylinder, and the lifting block drives the pressure plate to rotate through the rotating plate and the pulling plate, and the pressure plate drives the pressing rod to move, thereby completing the fixation of the workpiece with drilling holes. While the lifting block is rising and falling, the opening and closing of the switch can be triggered, thereby completing the linkage of the clamping parts, realizing the synchronous connection between the clamping parts and the translation mechanism when fixing the workpiece, and realizing the positioning of the drilling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 It shows a schematic diagram of the left front structure of the overall structure according to the present invention;

[0022] Figure 2 It is shown that according to the present invention Figure 1 A schematic diagram of the structure from the right rear side perspective;

[0023] Figure 3 A schematic structural diagram of the upper half of a step-type drilling machine tool according to the present invention is shown;

[0024] Figure 4 It is shown that according to the present invention Figure 3 A schematic diagram of the structure from the rear upward perspective;

[0025] Figure 5 A schematic structural diagram of the lower half of the step-type drilling machine tool according to the present invention is shown;

[0026] Figure 6 It is shown that according to the present invention Figure 5 A schematic diagram of the structure from a front-side top-down perspective;

[0027] Figure 7 It shows a schematic structural diagram of a fixed guide member and a cooling member according to the present invention;

[0028] Figure 8 A schematic diagram of the split structure of the linkage parts according to the present invention is shown;

[0029] Fig. 9 It is shown that according to the present invention Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0030] Fig.10 It is shown that according to the present invention Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0031] Reference numerals list

[0032] 1. Base assembly; 11. Base; 12. Vertical plate; 13. Roller; 2. Fixed frame; 201. Fixed track; 3. Drilling machine; 4. Fixed guide; 41. Top plate; 42. Moving plate; 43. Connecting plate; 44. First cylinder; 4401. Push rod; 4402. Baffle; 5. Translation mechanism; 51. Support plate; 5101. Sliding block; 52. Clamping column; 53. Hydraulic rod; 54. Connecting longitudinal plate; 6. Cooling part; 61. Coolant box; 6101. Connecting pipe; 6102. Liquid inlet; 62. Liquid flow pipe; 63. Air pump; 64. Pressure rod; 7. Clamp; 701. Switch; 71. Electric telescopic rod; 72. Clamp cone; 8. Linkage; 81. Second cylinder; 82. Lifting block; 83. Rotating plate; 84. Pull plate; 85. Pressure plate; 86. Pressing rod; 8601. Blocking plate; 8602. Pad block. DETAILED DESCRIPTION

[0033] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0034] Example 1: Please refer to Figures 1 to 10 :

[0035] The present invention proposes a step-type drilling machine tool for mechanical processing, comprising a base assembly 1 and a cooling member 6; the base assembly 1 comprises a base 11 and a vertical plate 12, the base 11 and the vertical plate 12 are fixedly and vertically welded together, the front end surface of the vertical plate 12 is fixedly connected to a fixing frame 2 through a bolt assembly, and the top surface of the base 11 is fixedly connected to two sets of linkage members 8; the bottom surface of the fixing frame 2 is fixedly connected to the top surface of the base 11, and the left and right sides of the fixing frame 2 are fixedly installed with clamps 7, and the top surface of the fixing frame 2 is installed with a translation mechanism 5; the rearmost end of the translation mechanism 5 is fixedly connected to the front end surface of the vertical plate 12, and the translation mechanism 5 comprises a supporting plate 51 and a connecting longitudinal plate 54, the top surface of the supporting plate 51 is fixedly connected to the drilling machine 3, and the top surface of the supporting plate 51, A coolant box 61 is fixedly installed on the left side of the drilling machine 3, the connecting longitudinal plate 54 is perpendicular to and fixedly connected to the support plate 51, and the front end surface of the connecting longitudinal plate 54 is fixedly connected to the rear end surface of the drilling machine 3; a fixed guide 4 is fixedly arranged on the drilling machine 3; the fixed guide 4 includes a movable plate 42 and a connecting plate 43, the bottom surface of the movable plate 42 is fixedly connected to a pressure rod 64, the connecting plate 43 is fixedly connected to the outside of the drilling machine 3, four groups of vertical rods are fixedly arranged inside the connecting plate 43, the vertical rods are movably clamped in the inside of the movable plate 42, and an air pump 63 is fixedly connected to the top surface of the connecting plate 43; the cooling member 6 includes a coolant box 61, an air pump 63 and a pressure rod 64, the air pump 63 is fixedly connected to the bottom end of the pressure rod 64, and the air pump 63 is connected to the coolant box 61.

[0036] In addition, according to an embodiment of the present invention, as shown in the attached Figure 1 As shown, the base assembly 1 also includes a roller 13, the left and right ends of the roller 13 are movably clamped on the front end inner wall of the base 11 through an axis, and the rollers 13 are arranged in a downwardly inclined slope structure from back to front. The rollers 13 are used to facilitate the transportation of mechanical workpieces after drilling. The vertical plate 12 and the base 11 are vertically connected to each other, and the left and right sides are open structures, so that the drilling machine tool as a whole can be fed in the left and right directions, thereby improving the installation flexibility and applicability of the drilling machine tool.

[0037] In addition, according to an embodiment of the present invention, as shown in the attached Figure 6 As shown, a fixed track 201 is provided on the top surface of the fixed frame 2, and the fixed track 201 is located below the translation mechanism 5. The fixed track 201 is used to provide the translation mechanism 5 with a translation foundation, so that the step-by-step translation movement can be completed. At the same time, the fixed frame 2 is used to raise the installation height of the translation mechanism 5 and the drilling machine 3, so that the linkage part 8 has rotation space.

[0038] Example 2: Please refer to the attached Figure 4 and attached Figure 5 :

[0039] In addition, according to an embodiment of the present invention, the translation mechanism 5 also includes a clamping column 52 and a hydraulic rod 53. The clamping column 52 is fixedly connected to the left and right side surfaces of the support plate 51. The front end of the push rod of the hydraulic rod 53 is fixedly connected to the back side of the connecting longitudinal plate 54. The rear end of the hydraulic rod 53 is fixedly connected to the front end surface of the vertical plate 12. Two groups of sliders 5101 are fixedly provided on the bottom surface of the support plate 51. The sliders 5101 are slidably clamped on the fixed rail 201. When the hydraulic rod 53 is started, the connecting longitudinal plate 54 is driven to move, and then the drilling machine 3 and the support plate 51 are driven to move synchronously. The slider 5101 slides on the fixed rail 201, realizes step-by-step movement according to the clamping column 52, and completes the hole position movement of the drilling machine 3.

[0040] Example 3: Please refer to the attached Figure 7 :

[0041] In addition, according to an embodiment of the present invention, the fixed guide 4 also includes a top plate 41 and a first cylinder 44. The top plate 41 is fixedly connected to the top end of the vertical rod inside the connecting plate 43. The first cylinder 44 is fixedly installed on the top surface of the top plate 41. A baffle 4402 is fixedly arranged on the periphery of the push rod 4401 of the first cylinder 44. The outer diameter of the baffle 4402 is larger than the diameter of the circular hole inside the movable plate 42. The bottom end of the push rod 4401 is fixedly connected to the drill bit. When the first cylinder 44 is started to drive the push rod 4401 to move downward, the push rod 4401 drives the movable plate 42 to move downward through the baffle 4402. When the movable plate 42 moves downward, the pressure rod 64 is pressed and then the air pump 63 is pressed, so that the drill bit moves downward to drill and automatically cools down at the same time. There is no need to design the working time or state of the cooling member 6 through the controller again, thereby saving production costs.

[0042] In addition, according to an embodiment of the present invention, the cooling member 6 also includes a liquid flow tube 62, which is fixedly connected to the front end of the coolant box 61. The coolant box 61 is provided with a connecting tube 6101 and a liquid inlet 6102. The top end of the connecting tube 6101 is connected to the air pump 63. The liquid inlet 6102 is arranged on the rear side of the bottom end of the connecting tube 6101 and the top surface of the coolant box 61. When the air pump 63 is pressed, the coolant inside the coolant box 61 is pressed downward through the connecting tube 6101 and flows to the drilling workpiece through the liquid flow tube 62, so that cooling is performed during drilling. A hose structure is arranged in the middle of the liquid flow tube 62, so that it can be freely rotated at an angle, so that the coolant flow direction meets the cooling requirements of drilling at different positions.

[0043] Example 4: Please refer to the attached Figure 8 To Attachment Fig.10 :

[0044] In addition, according to an embodiment of the present invention, the linkage member 8 includes a second cylinder 81, a lifting block 82, a rotating plate 83, a pulling plate 84, a pressing plate 85 and a pressing rod 86. The second cylinder 81 is fixedly installed on the top surface of the base 11, and the top end of the push rod of the second cylinder 81 is fixedly connected with the lifting block 82. The lifting block 82 is internally slidably connected to the rotating plate 83. The rotating plate 83 is movably connected to the pulling plate 84 through an axis. The rear end of the rotating plate 83 is movably connected to the pressing plate 85 through an axis. The pulling plate 84 and the pressing plate 85 are respectively movably connected to the fixed block on the top surface of the base 11 through an axis. The pressing plate 85 is internally slidably connected to the pressing rod 86. Two groups of blocking plates 8601 and one group of cushion blocks 8602 are fixedly provided on the rod 86. The diameters of the two groups of blocking plates 8601 are larger than the internal width of the pressure plate 85. The cushion blocks 8602 are fixedly welded to the bottom end of the pressing rod 86. When the second cylinder 81 is started, the lifting block 82 is driven to move by the push rod of the second cylinder 81. The lifting block 82 drives the pressure plate 85 to rotate through the rotating plate 83 and the pulling plate 84. The pressure plate 85 drives the pressing rod 86 to move, thereby completing the fixing or detachment of the workpiece with a drilled hole. When the lifting block 82 is lifted or lowered, the switch 701 can be triggered to open and close, thereby completing the linkage of the clamp 7.

[0045] In addition, according to an embodiment of the present invention, the clamping member 7 includes an electric telescopic rod 71 and a clamping cone 72, and the switch 701 of the clamping member 7 is arranged on the top surface of the linkage member 8. A micro programmable controller is arranged inside the switch 701 and the circuit is connected to the electric telescopic rod 71. The top surface of the electric telescopic rod 71 is fixedly connected to the clamping cone 72 by a threaded rod. The bottom width of the clamping cone 72 is greater than the spacing between two adjacent groups of clamping columns 52. When the switch 701 is pressed through the linkage member 8, the electric telescopic rod 71 is started to move upward through the micro programmable controller, thereby pushing the clamping cone 72 to move upward and clamped between the two groups of clamping columns 52, so that the clamping cone 72 locks the position of the support plate 51, thereby completing the position fixation of the drilling machine 3 after the step-by-step movement.

[0046] Specific usage and function of this embodiment: In the present invention, after the second cylinder 81 is started, the push rod of the second cylinder 81 drives the lifting block 82 to move, and the lifting block 82 drives the pressing plate 85 to rotate through the rotating plate 83 and the pulling plate 84, and the pressing plate 85 drives the pressing rod 86 to move, thereby completing the fixation of the workpiece with a drilling hole. When the drilling machine 3 is drilling, after the first cylinder 44 is started to drive the push rod 4401 to move downward, the push rod 4401 drives the moving plate 42 to move downward through the baffle 4402. When the moving plate 42 moves downward, it presses the pressing rod 64 and then presses the air pump 63, so that the drill bit moves downward to drill and automatically cools down;

[0047] After the drilling is completed, when the next hole is drilled by stepping movement, the clamping member 7 is started by the external circuit controller to make the electric control telescopic rod 71 move downward. At this time, the linkage member 8 remains stationary, and the electric control telescopic rod 71 drives the cone 72 to move downward and disengage from the clamping column 52. The hydraulic rod 53 is started to drive the connecting longitudinal plate 54 to move, thereby driving the drilling machine 3 and the support plate 51 to move synchronously. The slider 5101 slides on the fixed track 201 and realizes step-by-step movement according to the clamping column 52 to complete the hole position movement of the drilling machine 3. When the electric control telescopic rod 71 is started to move upward, the cone 72 is pushed to be clamped between the two groups of clamping columns 52, so that the cone 72 locks the position of the support plate 51, and the position of the drilling machine 3 after the step-by-step movement is fixed.

[0048] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0049] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A method for using a step-type drilling machine tool for mechanical processing, It is characterized in that The drilling machine tool comprises a base assembly (1) and a cooling member (6); the base assembly (1) comprises a base (11) and a vertical plate (12); the base (11) and the vertical plate (12) are fixedly welded together vertically; the front end surface of the vertical plate (12) is fixedly connected to a fixing frame (2) through a bolt assembly; the top surface of the base (11) is fixedly connected to two groups of linkage members (8); the bottom surface of the fixing frame (2) is fixedly connected to the top surface of the base (11); the left and right sides of the fixing frame (2) are fixedly installed with clamps (7); the top surface of the fixing frame (2) is installed with a translation mechanism (5); the rear end of the translation mechanism (5) is fixedly connected to the front end surface of the vertical plate (12); the translation mechanism (5) comprises a supporting plate (51) and a connecting longitudinal plate (54); the top surface of the supporting plate (51) is fixedly connected to the drilling machine (3); the top surface of the supporting plate (51) and the left side of the drilling machine (3) are fixedly connected to the fixing frame (2); A coolant box (61) is fixedly installed, the connecting longitudinal plate (54) is vertically and fixedly connected to the supporting plate (51), and the front end surface of the connecting longitudinal plate (54) is fixedly connected to the rear end surface of the drilling machine (3); a fixed guide (4) is fixedly arranged on the drilling machine (3); the fixed guide (4) comprises a movable plate (42) and a connecting plate (43), the bottom surface of the movable plate (42) is fixedly connected to a pressure rod (64), the connecting plate (43) is fixedly connected to the outside of the drilling machine (3), four groups of vertical rods are fixedly arranged inside the connecting plate (43), the vertical rods are movably clamped inside the movable plate (42), and the top surface of the connecting plate (43) is fixedly connected to an air pump (63); the cooling member (6) comprises a coolant box (61), an air pump (63) and a pressure rod (64), the air pump (63) is fixedly connected to the bottom end of the pressure rod (64), and the air pump (63) is connected to the coolant box (61); The base assembly (1) further comprises a roller (13), the left and right ends of which are movably clamped on the front inner wall of the base (11) via an axis, and the rollers (13) are arranged in a downwardly inclined slope structure from back to front; A fixed track (201) is provided on the top surface of the fixed frame (2), and the fixed track (201) is located below the translation mechanism (5); The fixed guide (4) also includes a top plate (41) and a first cylinder (44); the top plate (41) is fixedly connected to the top end of the vertical rod inside the connecting plate (43); the first cylinder (44) is fixedly installed on the top surface of the top plate (41); a baffle (4402) is fixedly provided on the periphery of the push rod (4401) of the first cylinder (44); the outer diameter of the baffle (4402) is larger than the diameter of the circular hole inside the movable plate (42); and the bottom end of the push rod (4401) is fixedly connected to a drill bit; The translation mechanism (5) further comprises a clamping column (52) and a hydraulic rod (53), wherein the clamping column (52) is fixedly connected to the left and right side surfaces of the support plate (51), the front end of the push rod of the hydraulic rod (53) is fixedly connected to the back side of the connecting longitudinal plate (54), and the rear end of the hydraulic rod (53) is fixedly connected to the front end surface of the vertical plate (12), and two groups of sliding blocks (5101) are fixedly provided on the bottom surface of the support plate (51), and the sliding blocks (5101) are slidably clamped on the fixed rail (201); The clamping member (7) comprises an electrically controlled telescopic rod (71) and a clamping cone (72), and a switch (701) of the clamping member (7) is arranged on the top surface of the linkage member (8), a micro programmable controller is arranged inside the switch (701) and the circuit is connected to the electrically controlled telescopic rod (71), the top surface of the electrically controlled telescopic rod (71) is fixedly connected to the clamping cone (72) via a threaded rod, and the bottom width of the clamping cone (72) is greater than the spacing between two adjacent groups of clamping columns (52); The linkage member (8) comprises a second cylinder (81), a lifting block (82), a rotating plate (83), a pulling plate (84), a pressing plate (85) and a pressing rod (86); the second cylinder (81) is fixedly mounted on the top surface of the base (11); the top end of the push rod of the second cylinder (81) is fixedly connected to the lifting block (82); the lifting block (82) is internally slidably engaged with the rotating plate (83); the rotating plate (83) is movably connected to the pulling plate (84) via a shaft; the rear end of the rotating plate (83) is movably connected to the pressing plate (85) via a shaft; the pulling plate (84) and the pressing plate (85) are respectively movably connected to the fixed block on the top surface of the base (11) via a shaft; the pressing plate (85) is internally slidably engaged with the pressing rod (86); Two groups of blocking plates (8601) and a group of cushion blocks (8602) are fixedly provided on the pressing rod (86), the diameters of the two groups of blocking plates (8601) are both larger than the width inside the pressing plate (85), and the cushion blocks (8602) are fixedly welded to the bottom end of the pressing rod (86); The cooling element (6) further comprises a liquid flow tube (62), the liquid flow tube (62) being fixedly connected to the front end of the cooling liquid box (61), the cooling liquid box (61) being provided with a connecting tube (6101) and a liquid inlet (6102), the top end of the connecting tube (6101) being connected to the air pump (63), and the liquid inlet (6102) being provided at the rear side of the bottom end of the connecting tube (6101) and the top surface of the cooling liquid box (61); When in use, after the second cylinder (81) is started, the push rod of the second cylinder (81) drives the lifting block (82) to move, and the lifting block (82) drives the pressing plate (85) to rotate through the rotating plate (83) and the pulling plate (84), and the pressing plate (85) drives the pressing rod (86) to move, thereby completing the fixation of the workpiece to be drilled. When the drilling machine (3) is drilling, after the first cylinder (44) is started to drive the push rod (4401) to move downward, the push rod (4401) drives the moving plate (42) to move downward through the baffle (4402), and when the moving plate (42) moves downward, it presses the pressing rod (64) and then presses the air pump (63), so that the drill bit moves downward to drill and automatically cools down; After the drilling is completed, when the next hole is drilled by stepping, the clamping member (7) is started by the external circuit controller to move the electric telescopic rod (71) downward. At this time, the linkage member (8) remains stationary. The electric telescopic rod (71) drives the cone (72) to move downward and disengage from the clamping column (52). The hydraulic rod (53) is started to drive the connecting longitudinal plate (54) to move, thereby driving the drilling machine (3) and the support plate (51) to move synchronously. The slider (5101) slides on the fixed track (201) and realizes stepping movement according to the clamping column (52). The hole position movement of the drilling machine (3) is completed. The electric telescopic rod (71) is started to move upward, and the cone (72) is pushed to be clamped between the two groups of clamping columns (52). The cone (72) locks the position of the support plate (51). After the stepping movement is completed, the position of the drilling machine (3) is fixed.

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