Drilling cooling device for vertical machining center

Abstract

The present invention relates to the field of machine tool cooling technology, specifically, to a drilling cooling device for a vertical machining center, comprising a machining center and a drilling assembly installed on the machining center, wherein the upper and lower halves of the machining center are a workbench and a base respectively, a cooling assembly is provided on the top surface of the workbench, the cooling assembly comprises an adjustment structure, a control structure and a pumping structure, a separation assembly is provided in the base, the adjustment structure comprises an installation box, a heating tube arranged in the installation box, a push rod mechanism and a valve plate mechanism, an expansion chamber is provided in the bottom portion of the heating tube, a heat-conducting rod is provided in the expansion chamber, one end of the heat-conducting rod extends into the expansion chamber and the other end is provided with a heat-conducting ring. By providing a cooling assembly, the device can cool down the drill bit during use according to the heat generation condition, thereby reducing the waste of water resources during use, and the adjustment structure can also perform staged water cooling and cooling in the cold zone according to the heat generation condition, thereby further reducing the waste of water resources.

Description

Technical Field

[0001] The invention belongs to the technical field of machine tool cooling, in particular to a drilling cooling device for a vertical machining center. Background Art

[0002] The vertical machining center is a multifunctional CNC machine tool with replaceable tool heads. During use, the tool needs to be cooled to ensure equipment safety and machining accuracy.

[0003] For example, the invention patent with authorization publication number CN116441994A discloses a coolant circulation device for a vertical machining center in the technical field of auxiliary equipment of a machining center, including an output pipe, a filter assembly and a circulation assembly, one end of the output pipe is connected to the machining center and is used to discharge the coolant, and the end of the output pipe away from the machining center is connected to the filter assembly, and the filter assembly is used to filter impurities in the coolant; in addition, the patent with authorization publication number CN219337038U discloses a coolant recovery device for a vertical machining center in the technical field of recovery devices, a coolant recovery device for a vertical machining center, including a machining center body, a hydraulic cylinder fixedly connected to the inner side of the machining center body, a machining head fixedly connected to the output end of the hydraulic cylinder, an electric push rod fixedly connected to the inner side wall of the machining center body, and a splint fixedly connected to the output end of the electric push rod.

[0004] Although the above devices can recycle the coolant, they still start synchronously with the drill bit during use. The temperature of the cutter head is not high at the beginning, especially when drilling multiple holes in thin plates. If they are started synchronously, the initial cooling water is easily wasted, that is, the cutter head cannot be cooled in stages. In order to solve the above problem, we propose a drilling cooling device for the vertical machining center.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a drilling cooling device for a vertical machining center to solve the above-mentioned problems in the prior art.

[0007] To achieve the above objectives, the present invention provides a drilling cooling device for a vertical machining center, comprising a machining center and a drilling assembly mounted on the machining center, wherein the machining center comprises a workbench and a base, respectively, and a cooling assembly is provided on the top surface of the workbench. The cooling assembly includes an adjustment structure, a control structure, and a pumping structure, and a separation assembly is provided in the base.

[0008] The regulating structure includes a mounting box, a heating tube arranged in the mounting box, a push rod mechanism, and a valve plate mechanism. The bottom end of the heating tube is provided with an expansion cavity, and a heat-conducting rod is provided in the expansion cavity. One end of the heat-conducting rod extends into the expansion cavity, and the other end is fixedly connected to a heat-conducting ring.

[0009] The push rod mechanism includes a lower push rod and an upper push rod, the upper and lower ends of the lower push rod are respectively fixed with a push column and a base plate, the base plate is located in the heating cylinder, the push column is located in the upper push rod, and the left and right sides of the upper push rod are symmetrically provided with overhanging pieces, and a sliding piece is provided in the overhanging piece, and the sliding piece includes a sliding block at the inner end, a rod handle fixed to the middle part of the outer side wall of the sliding block, a connecting ring fixed to the outer end of the rod handle, and a spring, and an electric pole is provided in the middle of the outer top surface of the upper push rod;

[0010] The valve plate mechanism is symmetrically arranged on the left and right sides of the push rod mechanism, and the valve plate mechanism includes a vertical connecting rod, a telescopic rod and a horizontal connecting rod. The vertical connecting rod passes through the connecting ring on the same side and the two are slidably connected. The middle end of the horizontal connecting rod is provided with a tooth surface. The left and right horizontal connecting rods are symmetrically arranged up and down, and a gear is provided in the middle between the two horizontal connecting rods.

[0011] The pumping structure includes a water pipe and a water pump. A horizontal valve plate is provided in the water pipe at a position corresponding to the gear. A shaft is provided in the middle section of the valve plate. The rear end of the shaft passes through the water pipe and is coaxially connected to the gear.

[0012] In the technical solution of the present invention, the drilling assembly includes a driver installed in the middle of the top surface of the workbench, a drill bit holder passing through the top surface of the workbench and connected to the driver, and a drill bit.

[0013] In the technical solution of the present invention, an outer cylinder sleeve is provided in the middle of the inner top surface of the workbench, the drill seat and the drill bit are located in the outer cylinder sleeve, the mounting box is fixed to the lower position of the side wall of the outer cylinder sleeve, the heat-conducting ring sleeve is provided on the rod of the drill bit, the heat-conducting rod passes through the heated cylinder and the outer cylinder sleeve in sequence from the outside to the inside, and the inner end portion is fixed to the side wall of the heat-conducting ring, and there is no contact between the heat-conducting ring and the drill bit.

[0014] In the technical solution of the present invention, the upper half of the heated tube is a sliding cavity, the cavity wall of the sliding cavity is provided with a limiting groove adapted to the chassis, and the upper end of the lower push rod passes through the top surface of the heated tube, the top surface of the mounting box and the bottom surface of the upper push rod in sequence from bottom to top.

[0015] In the technical solution of the present invention, the distance between the bottom surface of the sliding block and the inner bottom surface of the upper push rod is equal to the height of the push column. The sliding block is in the shape of a semicircular block and its bottom surface is provided with an opening in the shape of a conical groove. The size of the bottom surface opening of the sliding block is the same as the size of the push column and the bottom surface of the sliding block is a rough surface. The spring is sleeved on the outer wall of the handle located on the inner part of the protruding part.

[0016] In the technical solution of the present invention, the telescopic rod includes a rotating rod, a second connecting rod sliding back and forth in the rotating rod, and a first connecting rod. The rear end of the second connecting rod passes through the rear side wall of the rotating rod on the same side and is rotatably connected to the bottom end of the vertical connecting rod on the same side. The front end of the first connecting rod passes through the front side wall of the rotating rod on the same side and is rotatably connected to the outer end of the horizontal connecting rod on the same side. The bottom surface of the rotating rod is rotatably connected to the top surface of the mounting box by setting a support column.

[0017] In the technical solution of the present invention, two fixed blocks are provided on the top surface of the installation box, the two horizontal connecting rods pass through the fixed blocks on the same side and the tooth surfaces are located on the inner side of the fixed blocks on the same side, and the upper and lower tooth surfaces are both engaged with the gears.

[0018] In the technical solution of the present invention, the control structure includes a control power supply fixed on the top surface of the workbench, two conductive rods electrically connected to the positive and negative poles of the control power supply, and a contact electrically connected to the other end of the conductive rod. The two contacts are located directly above the power connection column and the two contacts do not contact each other. A partition plate is fixed on the top surface of the workbench between the top rod mechanism and the water pipe.

[0019] In the technical solution of the present invention, a circle of water troughs is provided near the periphery of the top surface of the base, and drainage holes are provided in the middle of the left and right ends of the water troughs. The separation assembly includes a sieve plate, a reciprocating motor and a support frame installed on the front and rear sides of the sieve plate. The support frame is a parallelogram structure and the bottom edge is fixed to the inner bottom surface of the base, and the top horizontal edge is fixed to the side wall of the sieve plate. The left side wall of the base is hinged with a door.

[0020] In the technical solution of the present invention, the reciprocating motor and the water pump are both electrically connected to the control power supply through wires.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the present invention, when the drilling assembly generates heat during drilling, the heat conduction ring conducts heat to cause the gas inside the expansion chamber to expand due to the heat, thereby driving the chassis to drive the lower push rod and the upper push rod to slide upward together until the power column contacts the contact and the control power is turned on. At this time, the control power starts the water pump and the reciprocating motor, and then sprays water to cool down, so that the cooling device can cool according to the actual heating situation of the drill bit.

[0023] 2. In the present invention, when the drilling assembly continues to generate heat after initial cooling, the gas further expands due to the heat, and the lower push rod moves upward under the action of the expanding gas to push the sliding block to both sides, thereby driving the horizontal connecting rod to slide relative to each other through the telescopic rod, and finally driving the gear to rotate through the tooth surface on the horizontal connecting rod, thereby causing the valve plate to rotate and open, increasing the water flow for cooling, so that the entire device can be cooled in stages according to the heating conditions of the drill head, thereby reducing water waste.

[0024] 3. In the present invention, when the control power is turned on, the reciprocating motor will also start and drive the screen plate to move back and forth. At the same time, with the cooperation of the support frame, it can form an elliptical moving trajectory, thereby better separating the metal residue generated during drilling from the cooling water, so that the cooling water can be recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 Another perspective view of the overall structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of the workbench in the present invention;

[0028] Figure 4 This is a schematic diagram of the cooling assembly structure of the present invention;

[0029] Figure 5 Schematic diagram of the control structure of the present invention;

[0030] Figure 6 This is an exploded view of the cooling assembly structure in the present invention;

[0031] Figure 7 This is a schematic diagram of the interior of the cooling assembly of the present invention;

[0032] Figure 8 This is an exploded diagram of the adjustment structure in the present invention;

[0033] Figure 9 This is a cross-sectional view of the transfer rod structure of the present invention;

[0034] Figure 10 It is a cross-sectional view of the base structure in the present invention.

[0035] Description of reference numerals:

[0036] 1. Machining center; 11. Workbench; 111. Partition plate; 12. Base; 121. Water trough; 122. Drain hole;

[0037] 2. Drilling assembly; 21. Driver; 22. Drill bit holder; 23. Drill bit;

[0038] 3. Cooling assembly; 31. Adjusting structure; 311. Outer sleeve; 312. Heat-conducting ring; 313. Heat-conducting rod; 314. Mounting box; 315. Heating tube; 3151. Expansion chamber; 3152. Sliding chamber; 3152a. Limiting groove; 316. Ejector mechanism; 3161. Chassis; 3162. Lower ejector; 3163. Ejector column; 3164. Upper ejector; 3165. Power connection column; 3166. Extension piece; 3167. Sliding piece; 3167a. Sliding block; 3167b. Rod handle; 3167c. Connecting ring; 3167d, spring; 317, valve plate mechanism; 3171, vertical connecting rod; 3172, telescopic rod; 3172a, rotating rod; 3172b, first connecting rod; 3172c, second connecting rod; 3172d, support column; 3173, horizontal connecting rod; 3173a, tooth surface; 3173b, gear; 3174, fixing block; 32, control structure; 321, control power supply; 322, conductive rod; 323, contact; 33, pumping structure; 331, water pipe; 3311, valve plate; 332, water pump;

[0039] 4. Separation assembly; 41. Screen plate; 42. Reciprocating motor; 43. Support frame; 44. Door stop. DETAILED DESCRIPTION

[0040] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0041] Unless expressly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising” will be understood to include the stated elements or components but not to exclude other elements or components.

[0042] Reference Figures 1-10 As shown, the drilling cooling device for a vertical machining center of the present invention includes a machining center 1 and a drilling assembly 2 mounted on the machining center 1. The upper and lower halves of the machining center 1 are respectively a workbench 11 and a base 12. A cooling assembly 3 is provided on the top surface of the workbench 11. The cooling assembly 3 includes an adjustment structure 31, a control structure 32, and a pumping structure 33. A separation assembly 4 is provided in the base 12.

[0043] The regulating structure 31 includes a mounting box 314, a heating tube 315 disposed within the mounting box 314, a push rod mechanism 316, and a valve plate mechanism 317. An expansion chamber 3151 is provided near the bottom of the heating tube 315. A heat-conducting rod 313 is disposed within the expansion chamber 3151. One end of the heat-conducting rod 313 extends into the expansion chamber 3151, and the other end is provided with a heat-conducting ring 312. When the drilling assembly 2 generates heat during drilling, the heat-conducting ring 312, which is sleeved on the outside of the drill bit 23, transfers heat to the heat-conducting rod 313. The other end of the heat-conducting rod 313 is located within the expansion chamber 3151, thereby causing the gas within the expansion chamber 3151 to expand after being heated.

[0044] The push rod mechanism 316 includes a lower push rod 3162 and an upper push rod 3164. The upper and lower ends of the lower push rod 3162 are respectively fixed with a push column 3163 and a base plate 3161. The base plate 3161 is located in the heating tube 315. The push column 3163 is located in the upper push rod 3164. The left and right sides of the upper push rod 3164 are symmetrically provided with an extension piece 3166. The extension piece 3166 is provided with a sliding piece 3167. The sliding piece 3167 includes a sliding block 3167a at the inner end, a rod handle 3167b fixed to the middle part of the outer wall of the sliding block 3167a, a connecting ring 3167c fixed to the outer end of the rod handle 3167b, and a and spring 3167d. An electrical connection post 3165 is provided in the middle of the outer top surface of the upper push rod 3164. The reciprocating motor 42 and the water pump 332 are both electrically connected to the control power supply 321 through wires. When the gas in the expansion chamber 3151 is heated and expanded, it first drives the chassis 3161 to slide upward along the sliding chamber 3152. At this time, the lower push rod 3162 and the upper push rod 3164 slide upward together until the electrical connection post 3165 contacts the contact 323 and the control power supply 321 is turned on. At this time, the control power supply 321 controls the water pump 332 and the reciprocating motor 42 to start, thereby spraying water for cooling.

[0045] The valve plate mechanism 317 is symmetrically arranged on the left and right sides of the top rod mechanism 316. The valve plate mechanism 317 includes a vertical connecting rod 3171, a telescopic rod 3172 and a horizontal connecting rod 3173. The vertical connecting rod 3171 passes through the connecting ring 3167c on the same side and the two are slidably connected. It is worth noting that the top diameter of the vertical connecting rod 3171 is larger than the ring diameter of the connecting ring 3167c to prevent the two from disengaging during the sliding process. The middle part of the horizontal connecting rod 3173 is provided with a tooth surface 3173a. The left and right horizontal connecting rods 3173 are symmetrically arranged up and down. A gear 3173b is provided in the middle between the two horizontal connecting rods 3173. When the drilling assembly 2 is in use, When heat continues to be generated during use, the gas in the expansion chamber 3151 further expands due to the heat. At this time, the upper push rod 3164 cannot move upward any further. Under the action of the expanding gas, the lower push rod 3162 moves upward to push the sliding block 3167a to the sides. The rod handle 3167b of the sliding block 3167a pushes the vertical connecting rod 3171 outward, causing the telescopic rods 3172 on both sides to rotate relative to each other, thereby driving the horizontal connecting rod 3173 to slide relative to each other. Finally, the gear 3173b is driven to rotate by the tooth surface 3173a on the horizontal connecting rod 3173, thereby causing the valve plate 3311 to rotate and open, thereby increasing the water flow for cooling.

[0046] The pumping structure 33 includes a water pipe 331 and a water pump 332. A horizontal valve plate 3311 is provided in the water pipe 331 at a position corresponding to the gear 3173b. Figure 7 As shown, it can be seen that the valve plate 3311 itself has a leakage hole, so when water is sprayed for cooling for the first time, water can also flow through the valve plate 3311 when it is horizontal. A shaft is provided in the middle section of the valve plate 3311, and the rear end of the shaft passes through the water pipe 331 and is coaxially connected to the gear 3173b.

[0047] In this embodiment, if Figure 6 As shown, the drilling assembly 2 includes a driver 21 installed in the middle of the top surface of the workbench 11. The driver 21 can be fixed by bolts, and a drill bit seat 22 and a drill bit 23 are connected to the driver 21 through the top surface of the workbench 11.

[0048] In this embodiment, if Figure 4 and Figure 6 As shown, an outer sleeve 311 is provided in the middle of the inner top surface of the workbench 11, and the outer sleeve 311 is welded to the inner top surface of the workbench 11. The drill seat 22 and the drill bit 23 are located in the outer sleeve 311, and the mounting box 314 is fixed to the lower position of the side wall of the outer sleeve 311. The mounting box 314 is welded to the outer sleeve 311, and the heat-conducting ring 312 is sleeved on the rod of the drill bit 23. The heat-conducting rod 313 passes through the heated cylinder 315 and the outer sleeve 311 from the outside to the inside at one time, and the inner end portion is fixed to the side wall of the heat-conducting ring 312. There is no contact between the heat-conducting ring 312 and the drill bit 23, so as to avoid unnecessary heat generated by friction with the heat-conducting ring 312 during the rotation of the drill bit 23, which may cause damage to the drill bit 23 or the heat-conducting ring 312.

[0049] Further, if Figure 7 As shown, the upper half of the heating tube 315 is a sliding cavity 3152, and the cavity wall of the sliding cavity 3152 is provided with a limiting groove 3152a adapted to the chassis 3161. The limiting groove 3152a limits the sliding of the chassis 3161 to prevent it from rotating. The upper end of the lower push rod 3162 passes through the top surface of the heating tube 315, the top surface of the installation box 314 and the bottom surface of the upper push rod 3164 from bottom to top.

[0050] Further, if Figure 8 As shown, the distance between the bottom surface of the sliding block 3167a and the inner bottom surface of the upper push rod 3164 is equal to the height of the top column 3163. The sliding block 3167a is in the shape of a semicircular block as a whole and its bottom surface is provided with an opening in the shape of a herringbone slope. In addition, the bottom surface of the rotating rod 3172a is connected to the top surface of the installation box 314 for horizontal rotation by providing a support column 3172d, thereby limiting the swing of the vertical connecting rod 3171 and the connecting ring 3167c, thereby preventing the sliding block 3167a from rotating in the vertical plane. The size of the bottom surface opening of the sliding block 3167a is the same as that of the top column 3163, ensuring that the top column 3163 can completely push the sliding block 3167a away without causing the bottom surface of the sliding block 3167a to be blocked. The top column 3163 is blocked, thereby ensuring that the valve plate 3311 can be opened without affecting the upward sliding of the top column 3163. The bottom surface of the sliding block 3167a is a rough surface, which increases the friction between the top column 3163 and the sliding block 3167a. When the power column 3165 is not in contact with the contact 323, the top column 3163 can push the sliding block 3167a to move upward without relative movement, thereby preventing the upper and lower push rods 3164 and 3162 from sliding relative to each other when they rise together. The spring 3167d is sleeved on the outer wall of the handle 3167b located on the inner part of the extension part 3166. The spring 3167d can ensure the reset of the sliding block 3167a after cooling down.

[0051] In addition, two fixed blocks 3174 are provided on the top surface of the installation box 314, and two horizontal connecting rods 3173 pass through the fixed blocks 3174 on the same side and the tooth surface 3173a is located on the inner side of the fixed blocks 3174 on the same side. The fixed blocks 3174 are welded to the top surface of the installation box 314, and the fixed blocks 3174 limit the horizontal connecting rod 3173 to prevent it from rotating left and right, causing it to disengage from the gear 3173b, and the upper and lower tooth surfaces 3173a are both engaged with the gear 3173b.

[0052] Specifically, if Figure 9As shown, the telescopic rod 3172 includes a rotating rod 3172a, a second connecting rod 3172c and a first connecting rod 3172b which are arranged to slide back and forth in the rotating rod 3172a. By setting the telescopic rod 3172, it can be transmitted during the process of the sliding block 3167a being pushed out, thereby causing the horizontal connecting rod 3173 to slide inward. At the same time, the telescopic structure can avoid the problem of the fixed rod length causing the telescopic rod 3172 to be unable to rotate and transmit during the rotation process. The rear end of the second connecting rod 3172c passes through the rear side wall of the rotating rod 3172a on the same side and is rotatably connected to the bottom end of the vertical connecting rod 3171 on the same side. The front end of the first connecting rod 3172b passes through the front side wall of the rotating rod 3172a on the same side and is rotatably connected to the outer end of the horizontal connecting rod 3173 on the same side. The bottom surface of the rotating rod 3172a is rotatably connected to the top surface of the mounting box 314 by setting a support column 3172d.

[0053] In addition, if Figure 3 and Figure 5 As shown, the control structure 32 includes a control power supply 321 bolted to the top surface of the workbench 11, two conductive rods 322 electrically connected to the positive and negative poles of the control power supply 321, and a contact 323 electrically connected to the other end of the conductive rod 322. The outer layer of the conductive rod 322 is an insulating layer and the inner layer is a conductive core. The two contacts 323 are located directly above the power post 3165 and the two contacts 323 do not contact each other. A partition plate 111 is fixed on the inner top surface of the workbench 11 between the top rod mechanism 316 and the water pipe 331. The partition plate 111 can prevent water vapor from the water pipe 331 from corroding the contacts 323 and the power post 3165, thereby avoiding poor contact.

[0054] In addition, if Figure 10 As shown, a circle of water troughs 121 is provided near the periphery on the top surface of the base 12, and a drain hole 122 is provided in the middle of the left and right ends of the water trough 121. The separation component 4 includes a sieve plate 41, a reciprocating motor 42 and a support frame 43 installed on the front and rear sides of the sieve plate 41. The support frame 43 is a parallelogram structure and the bottom edge is fixed to the inner bottom surface of the base 12, and the top horizontal edge is fixed to the side wall of the sieve plate 41. A baffle 44 is hinged on the left side wall of the base 12, and the sieve plate 41 is driven to move back and forth by the reciprocating motor 42. At the same time, with the cooperation of the support frame 43, it can form an elliptical moving trajectory, thereby better separating the metal residue generated during drilling from the cooling water.

[0055] The working principle of the drilling cooling device of the vertical machining center of the present invention is specifically as follows:

[0056] First, when the drilling assembly 2 generates heat during drilling, the heat-conducting ring 312 sleeved on the outside of the drill bit 23 transfers heat to the heat-conducting rod 313. The other end of the heat-conducting rod 313 is located in the expansion chamber 3151, thereby causing the gas inside the expansion chamber 3151 to expand after being heated. After the gas is heated and expanded, it drives the bottom plate 3161 to slide upward along the sliding chamber 3152. At this time, the lower push rod 3162 and the upper push rod 3164 slide upward together until the power column 3165 contacts the contact 323 and the control power supply 321 is turned on. At this time, the control power supply 321 controls the water pump 332 and the reciprocating motor 42 to start, thereby performing preliminary water spraying and cooling.

[0057] Afterwards, if the drilling assembly 2 continues to heat up after the initial cooling, the gas in the expansion chamber 3151 will further expand due to the heat. At this time, the upper push rod 3164 cannot continue to move upward. Under the action of the expanding gas, the lower push rod 3162 moves upward to push the sliding block 3167a to the sides. The rod handle 3167b of the sliding block 3167a will push the vertical connecting rod 3171 outward, causing the telescopic rods 3172 on both sides to rotate relative to each other, thereby driving the horizontal connecting rod 3173 to slide relative to each other. Finally, the gear 3173b is driven to rotate by the tooth surface 3173a on the horizontal connecting rod 3173, thereby causing the valve plate 3311 to rotate and open, thereby increasing the water flow for cooling.

[0058] When the control power supply 321 is turned on, the reciprocating motor 42 will also start and drive the screen plate 41 to move back and forth. At the same time, with the cooperation of the support frame 43, it can form an elliptical moving trajectory, thereby better separating the metal residue generated during drilling from the cooling water, so that the cooling water can be recycled.

[0059] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A drilling cooling device for a vertical machining center, comprising a machining center (1) and a drilling assembly (2) mounted on the machining center (1), wherein the upper and lower halves of the machining center (1) are a workbench (11) and a base (12), respectively; a cooling assembly (3) is provided on the top surface of the workbench (11), the cooling assembly (3) comprising an adjustment structure (31), a control structure (32) and a pumping structure (33); and a separation assembly (4) is provided in the base (12); The regulating structure (31) comprises a mounting box (314), a heating tube (315) arranged in the mounting box (314), a push rod mechanism (316), and a valve plate mechanism (317); an expansion chamber (3151) is provided in the bottom portion of the heating tube (315); a heat-conducting rod (313) is provided in the expansion chamber (3151); one end of the heat-conducting rod (313) extends into the expansion chamber (3151) and the other end is fixedly connected to a heat-conducting ring (312); Its characteristics are: The push rod mechanism (316) includes a lower push rod (3162) and an upper push rod (3164). The upper and lower ends of the lower push rod (3162) are respectively fixed with a push column (3163) and a chassis (3161). The chassis (3161) is located in the heating tube (315). The push column (3163) is located in the upper push rod (3164). The upper push rod (3164) is symmetrically provided with an overhanging piece (3166) on the left and right sides. A sliding member (3167) is provided inside the protruding member (3166), the sliding member (3167) comprising a sliding block (3167a) at the inner end, a rod handle (3167b) fixed to the middle of the outer side wall of the sliding block (3167a), a connecting ring (3167c) fixed to the outer end of the rod handle (3167b), and a spring (3167d); an electric pole (3165) is provided in the middle of the outer top surface of the upper push rod (3164); The distance between the bottom surface of the sliding block (3167a) and the inner bottom surface of the upper push rod (3164) is equal to the height of the push column (3163); the sliding block (3167a) is in the shape of a semicircular block and has a conical groove-shaped opening on its bottom surface; the size of the bottom opening of the sliding block (3167a) is the same as that of the push column (3163) and the bottom surface of the sliding block (3167a) is a rough surface; the spring (3167d) is sleeved on the outer wall of the inner part of the handle (3167b) located on the protruding member (3166); The valve plate mechanism (317) is symmetrically arranged on the left and right sides of the push rod mechanism (316), and the valve plate mechanism (317) includes a vertical connecting rod (3171), a telescopic rod (3172), and a horizontal connecting rod (3173). The vertical connecting rod (3171) passes through the connecting ring (3167c) on the same side and the two are slidably connected. The horizontal connecting rod (3173) is provided with a tooth surface (3173a) near the middle end. The left and right horizontal connecting rods (3173) are symmetrically arranged in the upper and lower parts, and a gear (3173b) is provided in the middle between the two horizontal connecting rods (3173). The water pumping structure (33) comprises a water pipe (331) and a water pump (332); a horizontal valve plate (3311) is provided in the water pipe (331) at a position corresponding to the gear (3173b); a shaft is provided in the middle section of the valve plate (3311); a rear end of the shaft passes through the water pipe (331) and is coaxially connected to the gear (3173b).

2. The drilling cooling device for a vertical machining center according to claim 1, characterized in that: The drilling assembly (2) comprises a driver (21) mounted in the middle of the top surface of the workbench (11), a drill bit seat (22) passing through the top surface of the workbench (11) and connected to the driver (21), and a drill bit (23).

3. The drilling cooling device for a vertical machining center according to claim 2, characterized in that: An outer sleeve (311) is provided in the middle of the inner top surface of the workbench (11), the drill seat (22) and the drill bit (23) are located in the outer sleeve (311), the mounting box (314) is fixed to the lower side wall of the outer sleeve (311), the heat-conducting ring (312) is sleeved on the rod of the drill bit (23), the heat-conducting rod (313) passes through the heating tube (315) and the outer sleeve (311) in sequence from the outside to the inside, and the inner end portion is fixed to the side wall of the heat-conducting ring (312), and there is no contact between the heat-conducting ring (312) and the drill bit (23).

4. The drilling cooling device for a vertical machining center according to claim 1, characterized in that: The upper half of the heating tube (315) is a sliding cavity (3152), and the cavity wall of the sliding cavity (3152) is provided with a limiting groove (3152a) adapted to the chassis (3161), and the upper end of the lower push rod (3162) passes through the top surface of the heating tube (315), the top surface of the installation box (314) and the bottom surface of the upper push rod (3164) in sequence from bottom to top.

5. The drilling cooling device for a vertical machining center according to claim 1, characterized in that: The telescopic rod (3172) includes a rotating rod (3172a), a second connecting rod (3172c) arranged to slide back and forth in the rotating rod (3172a), and a first connecting rod (3172b), the rear end of the second connecting rod (3172c) passing through the rear side wall of the rotating rod (3172a) on the same side and being rotatably connected to the bottom end of the vertical connecting rod (3171) on the same side, the front end of the first connecting rod (3172b) passing through the front side wall of the rotating rod (3172a) on the same side and being rotatably connected to the outer end of the horizontal connecting rod (3173) on the same side, and the bottom surface of the rotating rod (3172a) is rotatably connected to the top surface of the installation box (314) by providing a support column (3172d).

6. The drilling cooling device for a vertical machining center according to claim 1, characterized in that: Two fixed blocks (3174) are provided on the top surface of the installation box (314), the two horizontal connecting rods (3173) pass through the fixed blocks (3174) on the same side, and the tooth surfaces (3173a) are located on the inner side of the fixed blocks (3174) on the same side, and the upper and lower tooth surfaces (3173a) are both engaged with the gear (3173b).

7. The drilling cooling device for a vertical machining center according to claim 1, characterized in that: The control structure (32) includes a control power supply (321) fixed on the top surface of the workbench (11), two conductive rods (322) electrically connected to the positive and negative poles of the control power supply (321), and a contact (323) electrically connected to the other end of the conductive rod (322), the two contacts (323) being located directly above the power connection column (3165) and the two contacts (323) not contacting each other, and a partition plate (111) being fixed on the top surface of the workbench (11) between the top rod mechanism (316) and the water pipe (331).

8. The drilling cooling device for a vertical machining center according to claim 7, characterized in that: A circle of water troughs (121) is provided on the top surface of the base (12) near the periphery, and drain holes (122) are provided in the middle of the left and right ends of the water troughs (121). The separation assembly (4) comprises a sieve plate (41), a reciprocating motor (42), and a support frame (43) installed on the front and rear sides of the sieve plate (41). The support frame (43) is a parallelogram structure, and the bottom edge is fixed to the inner bottom surface of the base (12), and the top horizontal edge is fixed to the side wall of the sieve plate (41). A blocking door (44) is hinged to the left side wall of the base (12).

9. The drilling cooling device for a vertical machining center according to claim 8, characterized in that: The reciprocating motor (42) and the water pump (332) are both electrically connected to the control power supply (321) via wires.

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