Drilling cooling device for machine tool

Abstract

The utility model relates to the technical field of machine tool drilling machining, and discloses a drilling cooling device for a machine tool, which comprises a machining table, a machine frame is fixed behind the machining table, a lifting rod is fixed on the machine frame, a drilling motor is fixed at the bottom end of the lifting rod, and a drill rod assembly is fixed at the output end of the drilling motor. A liquid storage barrel and a pump body which are communicated with each other are fixed to the machine frame, a hose is fixed to the pump body, a waste liquid box is fixed to the bottom of the machining table through bolts, a discharge pipe is fixed to the waste liquid box, a fixed block is fixed to the machining table, an electric rod is fixed to the fixed block, and a clamping rod is fixed to the electric rod. A groove is formed in the machining table, a supporting table is arranged on the inner side of the groove, and a filter screen frame is placed in the groove. According to the drilling cooling device for the machine tool, a workpiece can be rapidly clamped and fixed through the four clamping rods, drilling can be conducted on the workpiece through the drilling rod assembly, and cooling treatment can be conducted on the drilling rod assembly in the drilling process.

Description

Technical Field

[0001] This utility model relates to the field of machine tool drilling technology, specifically a drilling cooling device for machine tools. Background Technology

[0002] In the field of machining, drilling is a common machining method. The process of making holes in solid materials with a drill bit is called drilling. The hole machining of various parts is done by fitters using drilling machines and drilling tools. When drilling rectangular workpieces, the workpiece needs to be clamped and fixed before drilling can be performed.

[0003] During the drilling process, the high-speed rotation of the drill bit and its contact and friction with the workpiece generate a large amount of heat. The increased temperature not only affects the service life of the drill bit, but may also deform the workpiece, reducing the drilling quality. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a drilling cooling device for machine tools, which solves the problem of inconvenience in cooling the drill bit when drilling rectangular workpieces.

[0006] (II) Technical Solution

[0007] To achieve the aforementioned purpose of facilitating the cooling of the drill bit during drilling of rectangular workpieces, this utility model provides the following technical solution: a drilling cooling device for machine tools, comprising a processing table, a frame fixed at the rear of the processing table, a lifting rod fixed on the frame, a drilling motor fixed at the bottom end of the lifting rod, a drill rod assembly fixed at the output end of the drilling motor, a liquid storage tank and a pump body connected to each other fixed on the frame, a flexible hose fixed on the pump body, a waste liquid tank fixed to the bottom of the processing table by bolts, a discharge pipe fixed on the waste liquid tank, a fixed block fixed on the processing table, an electric rod fixed on the fixed block, a clamping rod fixed on the electric rod, a groove formed on the processing table, a support platform provided inside the groove, and a filter frame placed inside the groove;

[0008] The drill rod assembly includes a drill shank and a drill rod. A limit ring is fixed on the drill rod, and a cylindrical inner cavity is formed inside the drill rod. A connecting rod is fixed between the drill shank and the drill rod. The gap between the connecting rod, the drill shank, and the drill rod forms a through opening. A spiral groove is formed on the surface of the drill rod, and a cooling hole is formed on the spiral groove. Both the drill shank and the drill rod have internal threads. An upper threaded ring is threaded onto the drill shank, and a lower threaded ring is threaded onto the drill rod. Rubber gaskets are provided inside the upper and lower threaded rings. Rotary grooves are formed on the surfaces of both the upper and lower threaded rings, and a rotating ring rotates within the rotating grooves. A sealing sleeve is fixed between the upper and lower rotating rings.

[0009] Preferably, the sealing sleeve is rotatably connected to the upper and lower threaded rings via a rotating groove and a rotating ring, respectively.

[0010] Preferably, the upper and lower threaded rings are threadedly connected to the drill shank and drill rod respectively via internal threads.

[0011] Preferably, the cooling hole is connected to the inner cavity, and the cooling hole is inclined downward inside the spiral groove.

[0012] Preferably, the hose is connected to the sealing sleeve, and the sealing sleeve is located outside the opening.

[0013] Preferably, a support rod is fixed on the sealing sleeve, and the end of the support rod away from the sealing sleeve is fixedly connected to the housing of the drilling motor by bolts.

[0014] Preferably, the clamping rods are arranged in a rectangular shape and there are four of them.

[0015] Preferably, the support platform and the processing platform are fixedly connected by a bracket, and the filter frame is located above the waste liquid tank.

[0016] Compared with the prior art, this utility model provides a drilling cooling device for machine tools, which has the following features:

[0017] Beneficial effects:

[0018] 1. The drilling cooling device of this machine tool is designed to quickly clamp and fix a rectangular workpiece by placing it on a support table and then activating four electric levers to simultaneously move four clamping rods inward. When the four clamping rods contact the workpiece from four sides, they can quickly clamp and fix the rectangular workpiece. Then, the lifting rod and drilling motor are activated. The lifting rod can drive the drilling motor and drill rod assembly to move downward, and the drilling motor can drive the drill rod assembly to rotate. Therefore, the drill rod assembly can be used to drill holes in the workpiece.

[0019] 2. The drilling cooling device of this machine tool can deliver coolant from the storage tank to the inner cavity through the port via the pump body and hose. The coolant inside the inner cavity can be sprayed out from the cooling holes at different positions. When the coolant flows through the inner cavity, it can cool the drill shank and drill rod from the inside. The coolant sprayed out from the cooling holes can cool the drill shank, drill rod, and inner hole of the workpiece from the outside. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the processing table and filter frame of this utility model;

[0022] Figure 3 This is an exploded view of the processing table and filter frame of this utility model.

[0023] Figure 4 This is a partial sectional view of the drill pipe assembly of this utility model.

[0024] Figure 5 This utility model Figure 4 A magnified view of the structure at point A in the middle.

[0025] The components include: 1. Processing table; 2. Frame; 3. Lifting rod; 4. Drilling motor; 5. Drill rod assembly; 51. Drill shank; 52. Drill rod; 53. Limiting ring; 54. Inner cavity; 55. Connecting rod; 56. Through port; 57. Spiral groove; 58. Cooling hole; 59. Internal thread; 510. Upper threaded ring; 511. Lower threaded ring; 512. Rubber pad; 513. Rotary groove; 514. Rotary ring; 515. Sealing sleeve; 6. Liquid storage tank; 7. Pump body; 8. Hose; 9. Waste liquid tank; 10. Discharge pipe; 11. Fixed block; 12. Electric rod; 13. Clamping rod; 14. Groove; 15. Support platform; 16. Filter screen frame. Detailed Implementation

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Please see Figure 1-5 This utility model provides a drilling cooling device for machine tools, including a processing table 1, a frame 2 fixed at the rear of the processing table 1, a lifting rod 3 fixed on the frame 2, a drilling motor 4 fixed at the bottom end of the lifting rod 3, a drill rod assembly 5 fixed at the output end of the drilling motor 4, a liquid storage tank 6 and a pump body 7 connected to each other fixed on the frame 2, a hose 8 fixed on the pump body 7, a waste liquid tank 9 fixed at the bottom of the processing table 1 by bolts, a discharge pipe 10 fixed on the waste liquid tank 9, a fixed block 11 fixed on the processing table 1, an electric rod 12 fixed on the fixed block 11, a clamping rod 13 fixed on the electric rod 12, a groove 14 opened on the processing table 1, a support platform 15 provided inside the groove 14, and a filter screen frame 16 placed inside the groove 14;

[0028] Drill rod assembly 5 includes drill shank 51 and drill rod 52. A limit ring 53 is fixed on drill rod 52. A cylindrical inner cavity 54 is formed inside drill rod 52. A connecting rod 55 is fixed between drill shank 51 and drill rod 52. The gap between connecting rod 55, drill shank 51 and drill rod 52 forms a through 56. A spiral groove 57 is formed on the surface of drill rod 52. Cooling holes 58 are formed on the spiral groove 57. Both drill shank 51 and drill rod 52 are provided with internal threads 59. An upper threaded ring 510 is threaded to drill shank 51, and a lower threaded ring 511 is threaded to drill rod 52. The upper threaded ring 510 and lower threaded ring 511 are internally arranged... There is a rubber pad 512, and the surfaces of the upper screw ring 510 and the lower screw ring 511 are both provided with rotating grooves 513. A rotating ring 514 rotates in the rotating groove 513, and a sealing sleeve 515 is fixed between the upper and lower rotating rings 514. By placing the rectangular workpiece on the support table 15, and then starting the four electric rods 12, the four clamping rods 13 can be driven to move inward synchronously, which can quickly clamp and fix the workpiece. Then, the lifting rod 3 and the drilling motor 4 are started respectively. While the lifting rod 3 drives the drill rod assembly 5 to move downward, the drilling motor 4 can drive the drill rod assembly 5 to rotate, thereby enabling drilling of the workpiece.

[0029] Furthermore, the sealing sleeve 515 is rotatably connected to the upper threaded ring 510 and the lower threaded ring 511 through the rotating groove 513 and the rotating ring 514 respectively. During the process of the drill shank 51 and the drill rod 52 driving the upper threaded ring 510 and the lower threaded ring 511 to rotate, the upper threaded ring 510 and the lower threaded ring 511 are rotatably connected to the sealing sleeve 515 through the rotating groove 513 and the rotating ring 514, so as to avoid interference between the sealing sleeve 515 and the rotating drill shank 51 and the drill rod 52.

[0030] Furthermore, the upper threaded ring 510 and the lower threaded ring 511 are threadedly connected to the drill shank 51 and the drill rod 52 respectively via internal threads 59. Before drilling, the upper threaded ring 510 and the lower threaded ring 511 are respectively fitted onto the drill shank 51 and the drill rod 52. The lower threaded ring 511 is limited downward by the limiting ring 53. Rotating the upper threaded ring 510 can fix it to the drill shank 51 by thread, and rotating the lower threaded ring 511 can fix it to the drill rod 52 by thread, so that the upper threaded ring 510 is fixed to the drill shank 51 and the lower threaded ring 511 is fixed to the drill rod 52. When the drill shank 51 is fixedly connected to the drilling motor 4, the drilling motor 4 can drive the drill shank 51, drill rod 52, upper screw ring 510 and lower screw ring 511 to rotate simultaneously and perform drilling on the workpiece. At this time, the hose 8 can deliver coolant to the inner cavity 54 through the port 56. At the same time, the upper and lower rubber gaskets 512 can seal the connection between the upper screw ring 510 and the drill shank 51, and seal the connection between the lower screw ring 511 and the drill rod 52, so that the coolant can only enter the inner cavity 54 and be sprayed out from the cooling hole 58 to cool down.

[0031] Furthermore, the cooling hole 58 is connected to the inner cavity 54. The cooling hole 58 is inclined downward inside the spiral groove 57, so that the coolant in the inner cavity 54 can be sprayed out through the cooling hole 58, thereby cooling the drill shank 51, the drill rod 52 and the workpiece.

[0032] Furthermore, the hose 8 is connected to the sealing sleeve 515, which is located outside the opening 56, so that the hose 8 can deliver coolant into the inner cavity 54 through the sealing sleeve 515.

[0033] Furthermore, a support rod is fixed on the sealing sleeve 515. The end of the support rod away from the sealing sleeve 515 is fixedly connected to the housing of the drilling motor 4 by bolts. The sealing sleeve 515 is fixedly connected to the housing of the drilling motor 4 by bolts. When the drill shank 51 and the drill rod 52 rotate, the sealing sleeve 515 remains stationary. Therefore, while supplying coolant to the inner cavity 54, the sealing sleeve 515 will not interfere with the rotating drill shank 51 and the drill rod 52.

[0034] Furthermore, four rectangular clamping rods 13 are provided, which facilitates the clamping and fixing of the rectangular workpiece from four sides.

[0035] Furthermore, the support platform 15 is fixedly connected to the processing table 1 by a bracket. The filter screen frame 16 is located above the waste liquid tank 9. The support platform 15 can support and fix the workpiece, and the filter screen frame 16 can discharge the filtered coolant into the waste liquid tank 9, while the filtered waste remains on the filter screen frame 16.

[0036] In use, a rectangular workpiece is placed on the support platform 15. Then, activating the four electric levers 12 simultaneously moves the four clamping levers 13 inwards. When the four clamping levers 13 contact the workpiece from four sides, they quickly clamp and fix the rectangular workpiece. Next, activating the lifting lever 3 and the drilling motor 4 causes the drilling motor 4 and the drill rod assembly 5 to move downwards. The drilling motor 4 drives the drill rod assembly 5 to rotate, thus drilling the workpiece through the drill rod assembly 5. Furthermore, during the drilling process, the sealing sleeve 515 is supported and fixed by the support rod fixedly connected to the housing of the drilling motor 4. The sealing sleeve 515 is further supported by the rotating groove 513 and the rotating ring 51. 4. With the drill shank 51 and drill rod 52, the coolant inside the storage tank 6 can be transported to the interior of the inner cavity 54 through the port 56 via the pump body 7 and the hose 8. The coolant inside the inner cavity 54 can be sprayed out from the cooling holes 58 at different positions. When the coolant flows through the inner cavity 54, it can cool down the drill shank 51 and drill rod 52 from the inside. The coolant sprayed out from the cooling holes 58 can cool down the drill shank 51, drill rod 52, and the inner hole of the workpiece from the outside. At the same time, the excess coolant can be filtered through the filter screen frame 16 and stored in the waste liquid tank 9. The waste chips generated by drilling fall on the filter screen frame 16. After the drilling is completed, the filtered waste chips can be collected and cleaned by hand by picking up the filter screen frame 16.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling cooling device for machine tools, comprising a machining table (1), characterized in that: The rear of the processing platform (1) is fixed with a rack (2), the rack (2) is fixed with a lifting rod (3), the bottom end of the lifting rod (3) is fixed with a drilling motor (4), the output end of the drilling motor (4) is fixed with a drill rod assembly (5), the rack (2) is fixed with a liquid storage barrel (6) and a pump body (7) which are communicated with each other, the pump body (7) is fixed with a hose (8), the bottom of the processing platform (1) is fixed with a waste liquid tank (9) through bolts, the waste liquid tank (9) is fixed with a discharge pipe (10), the processing platform (1) is fixed with a fixed block (11), the fixed block (11) is fixed with an electric rod (12), the electric rod (12) is fixed with a clamping rod (13), the processing platform (1) is provided with a groove (14), the inner side of the groove (14) is provided with a support table (15), and the inside of the groove (14) is provided with a filter screen frame (16). The drill rod assembly (5) comprises a drill handle (51) and a drill rod (52), the drill rod (52) is fixed with a limiting ring (53), a cylindrical inner cavity (54) is formed in the drill rod (52), a connecting rod (55) is fixed between the drill handle (51) and the drill rod (52), the gap between the connecting rod (55), the drill handle (51) and the drill rod (52) forms a through opening (56), a spiral groove (57) is formed on the surface of the drill rod (52), a cooling hole (58) is formed in the spiral groove (57), and internal threads (59) are formed on the drill handle (51) and the drill rod (52). The drill handle (51) is threadedly connected with an upper screw ring (510), the drill rod (52) is threadedly connected with a lower screw ring (511), the inside of the upper screw ring (510) and the lower screw ring (511) is provided with a rubber pad (512), the surface of the upper screw ring (510) and the lower screw ring (511) is provided with a rotating groove (513), and a rotating ring (514) is rotatably arranged in the rotating groove (513).

2. The drilling cooling device for machine tools according to claim 1, characterized in that: The sealing sleeve (515) is rotatably connected with the upper screw ring (510) and the lower screw ring (511) through the rotating groove (513) and the rotating ring (514).

3. The drilling cooling device for machine tools according to claim 1, characterized in that: The upper screw ring (510) and the lower screw ring (511) are threadedly connected with the drill handle (51) and the drill rod (52) through the internal threads (59).

4. The drilling cooling device for machine tools according to claim 1, characterized in that: The cooling hole (58) is communicated with the inner cavity (54), and the cooling hole (58) is inclined downward in the spiral groove (57).

5. The drilling cooling device for machine tools according to claim 1, characterized in that: The hose (8) is communicated with the sealing sleeve (515), and the sealing sleeve (515) is located outside the through opening (56).

6. The drilling cooling device for machine tools according to claim 1, characterized by: A supporting rod is fixed on the sealing sleeve (515), and the end of the supporting rod away from the sealing sleeve (515) is fixedly connected with the shell of the drilling motor (4) through bolts.

7. The drilling cooling device for machine tools according to claim 1, characterized in that: The clamping rod (13) is rectangular and has four.

8. The drilling cooling device for machine tools according to claim 1, characterized by: The support table (15) is fixedly connected with the processing platform (1) through a support, and the filter screen frame (16) is located above the waste liquid tank (9).

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