Numerical control milling and boring machine with gravity counterweight module

Abstract

The utility model provides a numerical control milling and boring machine with a gravity counterweight module, and relates to the field of numerical control milling and boring machines, the numerical control milling and boring machine comprises a machine body and a maintenance assembly, the machine body comprises a base, a rear stand column, a front stand column and a working assembly, the rear stand column and the front stand column are arranged at the upper end of the base, and the working assembly is located between the rear stand column and the front stand column; the maintenance assembly is arranged on the upper side of the lathe bed base and comprises a portal frame, a lifting plate is slidably connected to the inner side of the portal frame, a brush plate is slidably connected to the lower end of the lifting plate, the maintenance assembly further comprises an oil injection assembly, the oil injection assembly is arranged on the upper side of the brush plate, and the working assembly comprises a workbench. The lower end of the workbench is connected with an upper sliding seat, and the lower end of the upper sliding seat is slidably connected with a lower sliding seat. The utility model solves the problem that the working table and the sliding seat of the existing floor type milling and boring machine are inconvenient to clean and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled milling and boring machines, in particular to a numerically controlled milling and boring machine with a gravity counterweight module. Background Art

[0002] Floor-standing milling and boring machine is a heavy-duty machine tool with a wide range of uses. It has sufficient power and rigidity to meet the requirements of strong milling. It is an advanced equipment with excellent performance, a wide range of processes, high precision and production efficiency. Floor-standing milling and boring machine is mainly used for boring holes of large and medium-sized parts. It can also complete tasks such as drilling, expanding, reaming and milling planes. After searching, the prior art (application number: CN202122506882.7) records "a spindle box of a floor-standing milling and boring machine, including a box body, a column, a guide rod, a lifting rod and a reduction motor, the interior of the column is fixedly installed with a guide rod that penetrates the box body, the interior of the column is movably installed with a lifting rod that penetrates the box body and is transmission-connected to the box body, the top of the column is fixedly installed with a reduction motor that is transmission-connected to the lifting rod, the top of the box body is embedded with a guide sleeve that is sleeved on the outside of the guide rod and slidably connected to the guide rod, the top of the guide sleeve is fixedly installed with a connecting shell located on the outside of the guide rod, and the interior of the connecting shell is fixedly installed with two conduction components that are in contact with the left and right sides of the guide rod respectively. The spindle box of the floor-standing milling and boring machine can balance its exterior during machining operations, improve machining stability, reduce mechanical wear and noise, and effectively increase service life."

[0003] However, although the floor-standing milling and boring machines in the prior art have achieved lifting balance and noise reduction effects, they still have some shortcomings: the worktable involved in the existing floor-standing milling and boring machines generally has a strip groove on the upper end surface, and a double-axial slide seat is provided at the lower end of the worktable. During use, metal debris will accumulate in the strip groove, which is troublesome to clean manually. At the same time, the slide guide rail needs to be lubricated during long-term operation, which makes maintenance inconvenient. Utility Model Content

[0004] In order to overcome the defects of the prior art, a CNC milling and boring machine with a gravity counterweight module is provided to solve the problem that the workbench and slide seat involved in the existing floor-standing milling and boring machine are inconvenient to clean and maintain.

[0005] To achieve the above-mentioned purpose, a CNC milling and boring machine with a gravity counterweight module is provided, including: a bed and a maintenance assembly, the bed including a base, and a rear column and a front column and a working assembly provided at the upper end of the base, and the working assembly is located between the rear column and the front column, the maintenance assembly is provided on the upper side of the bed base, and the maintenance assembly includes a gantry, and a lifting plate is slidably connected to the inner side of the gantry, and a brush plate is slidably connected to the lower end of the lifting plate, the maintenance assembly also includes an oiling assembly, and the oiling assembly is arranged on the upper side of the brush plate, the working assembly includes a workbench, and an upper slide is connected to the lower end of the workbench, and a lower slide is slidably connected to the lower end of the upper slide, a groove and an oiling hole are opened on the upper side of the upper slide, and a guide hole is connected to the lower end of the oiling hole, and an inclined hole is connected to the lower end of the guide hole.

[0006] Furthermore, a main oil tank is slidably connected to the outer side of the front column, and a boring shaft is connected to one side of the main oil tank, and a rear trunk is connected to the other side.

[0007] Furthermore, a slide groove is provided on the inner side wall of the gantry, and both ends of the lifting plate are connected in the slide groove. Meanwhile, a cylinder is connected to the upper end of the lifting plate, and the cylinder is fixed on the top of the gantry.

[0008] Furthermore, end plates are fixed at both ends of the lower side of the lifting plate, and a screw rod and a guide rod are connected between the end plates, and a screw block is screwed on the outer side of the screw rod, and one end of the screw rod is connected to a motor.

[0009] Furthermore, a guide block is connected to the upper end of the brush plate, and the guide block is connected to the screw block on the upper side, and the guide rod slides horizontally and penetrates the guide block.

[0010] Furthermore, the oil injection assembly is arranged on the upper side of the guide block, and the oil injection assembly includes an oil storage tank and an oil pump connected thereto, and the output end of the oil pump is connected to an oil injection nozzle through an oil pipe.

[0011] Furthermore, a vertical hole is provided inside the lower slide seat, and the upper end of the vertical hole and the lower end of the inclined hole are both connected to the sliding connection surface between the upper slide seat and the lower slide seat.

[0012] The beneficial effects of the utility model are:

[0013] 1. When cleaning, first move the working component to the inside of the gantry and to the lower side of the brush plate. At this time, the groove on the upper end of the workbench corresponds to the upper and lower positions of the brush plate. Then start the cylinder to drive the lifting plate to drive the brush plate to move downward until the bristles of the brush plate are inserted into the groove. Then start the motor to drive the screw rod to rotate, and drive the brush plate to move along the length direction of the groove through the screw block, guide rod and guide block, so that the metal debris inside can be cleaned, which is safer and more convenient than manual cleaning;

[0014] 2. During maintenance, while the brush plate is cleaned, adjust the position of the brush plate so that the oiling nozzle corresponds to the oiling hole, continue to start the cylinder to drive the lifting plate down, so that the oiling nozzle is inserted into the oiling hole (the bristles of the brush plate are squeezed and bent at this time), and then start the oil pump to inject the lubricating oil in the oil tank into the oiling hole through the oil pipe and the oiling nozzle, and then penetrate into the sliding connection surface of the upper slide and the lower slide through the guide hole, inclined hole and vertical hole, as well as the connection surface between the lower slide and the bed base guide rail, to start the automatic lubrication maintenance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the partial structure of the front pillar of an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the side structure of the maintenance component of an embodiment of the utility model.

[0018] Figure 4 For the utility model embodiment Figure 1 Schematic diagram of the structure at point A in the middle.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the working components of an embodiment of the utility model.

[0020] In the figure: 1. bed; 11. rear column; 12. working assembly; 121. workbench; 122. upper slide; 123. lower slide; 124. groove; 125. oil filling hole; 126. guide hole; 127. inclined hole; 128. vertical hole; 13. front column; 14. main oil tank; 15. rear tail box; 16. boring spindle; 2. maintenance assembly; 21. gantry; 211. slide; 22. cylinder; 23. lifting plate; 24. motor; 241. screw; 242. screw block; 243. guide block; 25. end plate; 26. guide rod; 27. brush plate; 28. oil filling assembly; 281. oil storage tank; 282. oil pump; 283. oil pipe; 284. oil filling nozzle. DETAILED DESCRIPTION

[0021] Reference Figures 1 to 5As shown, the utility model provides a CNC milling and boring machine with a gravity counterweight module, comprising: a bed 1 and a maintenance component 2, the bed 1 comprising a base, and a rear column 11 and a front column 13 and a working component 12 provided at the upper end of the base, and the working component 12 is located between the rear column 11 and the front column 13, the outer side of the front column 13 is slidably connected to a main oil tank 14, and one side of the main oil tank 14 is connected to a boring shaft 16, and the other side is connected to a rear tail box 15, the maintenance component 2 is provided on the upper side of the bed 1 base, and the maintenance component 2 comprises a gantry 21, and the inner side of the gantry 21 is slidably connected to a lifting plate 23, and the lower end of the lifting plate 23 is slidably connected to a brush plate 27 The maintenance component 2 also includes an oil injection component 28, and the oil injection component 28 is arranged on the upper side of the brush plate 27. The working component 12 includes a workbench 121, and the lower end of the workbench 121 is connected to an upper slide 122, and the lower end of the upper slide 122 is slidably connected to a lower slide 123. A groove 124 and an oil injection hole 125 are provided on the upper side of the upper slide 122, and the lower end of the oil injection hole 125 is connected to a guide hole 126, and the lower end of the guide hole 126 is connected to an inclined hole 127. A vertical hole 128 is provided inside the lower slide 123, and the upper end of the vertical hole 128 and the lower end of the inclined hole 127 are both connected to the sliding connection surface between the upper slide 122 and the lower slide 123.

[0022] In this embodiment, the bed 1 and the maintenance assembly 2 constitute the specific structure of the CNC milling and boring machine with a gravity counterweight module involved in this application.

[0023] The bed 1 and the upper front column 13 and rear column 11 are configured as the basic structure of a CNC milling and boring machine in the prior art, and the model thereof is the TK6920 / 170 milling and boring machine of Qiqihar No. 2 Machine Tool Co., Ltd.

[0024] Specifically, the lower end of the brush plate 27 is provided with steel wire bristles, and the positions of the bristles and the grooves 124 correspond, and in this state, the oil filling hole 125 and the oil filling nozzle 284 correspond in position.

[0025] Specifically, the vertical hole 128 is divided into two sections, and when oil is injected, the relative position between the upper slide seat 122 and the lower slide seat 123 is reset to the initial position, so that the upper and lower sections of the vertical hole 128 are correspondingly connected.

[0026] Specifically, when the lubricating oil penetrates into the gap between the sliding seats, the excess oil continues to flow downward through the vertical hole 128 to lubricate the sliding connection surface of the lower sliding seat 123 .

[0027] It should be noted that for the above-mentioned milling and boring machine, the principle of achieving the gravity counterweight effect is: an oil cylinder controlled by an electro-hydraulic proportional servo valve is set between the front suspension rope of the spindle box and the spindle box. The CNC sends a given signal to the proportional servo valve PID controller to control the oil pressure. The oil pressure change is continuously monitored by the pressure sensor. When the ram moves, the center of gravity of the spindle box moves as the position of the ram changes, and the tension of the two balancing wire ropes in front and behind the spindle box changes. The change in the tension of the front balancing rope causes the oil pressure to decrease, and the signal sent by the pressure sensor also decreases. The pressure sensor transmits this decreased signal to the controller, and a positive signal difference is generated between the given signal and the feedback signal. At this time, the output of the PID controller increases, the valve opening becomes larger, and the oil pressure is adjusted to increase accordingly, and vice versa. In this way, by changing the tension of the front balancing wire rope, the change in the overall center of gravity of the spindle box and the ram caused by the movement of the ram is balanced, and the ram is prevented from bowing.

[0028] like Figure 3 and Figure 4 As shown, a slide groove 211 is provided on the inner wall of the gantry 21, and both ends of the lifting plate 23 are connected in the slide groove 211, and the upper end of the lifting plate 23 is connected to the cylinder 22, and the cylinder 22 is fixed to the top of the gantry 21, and end plates 25 are fixed at both ends of the lower side of the lifting plate 23, and a screw rod 241 and a guide rod 26 are connected between the end plates 25, and a screw block 242 is screwed on the outer side of the screw rod 241, and one end of the screw rod 241 is connected to the motor 24, and the upper end of the brush plate 27 is connected to the guide block 243, and the guide block 243 is connected to the screw block 242 on the upper side, and the guide rod 26 slides horizontally through the guide block 243, and the oil injection assembly 28 is arranged on the upper side of the guide block 243, and the oil injection assembly 28 includes an oil storage tank 281 and an oil pump 282 connected thereto, and the output end of the oil pump 282 is connected to the oil injection nozzle 284 through the oil pipe 283.

[0029] It should be noted that the installation position of the gantry 21 does not affect the basic sliding of the working assembly 12 .

[0030] Specifically, connecting plates are provided between the front and rear end columns of the gantry 21 and the front and rear edges of the bed 1, and the connecting plates maintain a certain distance between the gantry 21 and the bed 1. At the same time, a collecting groove is opened at the upper end of the connecting plate, and a collecting box is placed inside the collecting groove to facilitate the collection of metal debris cleaned when the brush plate 27 moves to both sides.

[0031] When in use and cleaning, first move the working component to the inner side of the gantry and to the lower side of the brush plate. At this time, the groove on the upper end of the workbench corresponds to the upper and lower positions of the brush plate, and then start the cylinder to drive the lifting plate to drive the brush plate to move downward until the bristles of the brush plate are inserted into the groove, and then start the motor to drive the screw to rotate, and drive the brush plate to move along the length direction of the groove through the screw block, guide rod and guide block, so that the internal metal debris can be cleaned, which is safer and more convenient than manual cleaning; during maintenance, in the cleaning state, adjust the position of the brush plate so that the oiling nozzle corresponds to the position of the oiling hole, continue to start the cylinder to drive the lifting plate to descend, so that the oiling nozzle is inserted into the oiling hole (the bristles of the brush plate are squeezed and bent at this time), and then start the oil pump to inject the lubricating oil in the oil tank into the oiling hole through the oil pipe and the oiling nozzle, and then penetrate into the sliding connection surface of the upper slide and the lower slide through the guide hole, the inclined hole and the vertical hole, and the connection surface between the lower slide and the bed base guide rail, to start the automatic lubrication and maintenance effect.

[0032] The CNC milling and boring machine with a gravity counterweight module of the utility model can effectively solve the problem of inconvenient cleaning and maintenance of the workbench and slide seat involved in the existing floor-type milling and boring machines, and realizes the convenient cleaning and maintenance effect of the workbench and slide seat involved in the floor-type boring and milling machine on the basis of the existing CNC milling and boring machine technology with a gravity counterweight module, thereby ensuring the operation of the machine tool and reducing the labor burden.

Claims

1. A CNC milling and boring machine with a gravity counterweight module, comprising: A bed (1) and a maintenance component (2), characterized in that: the bed (1) includes a base, and a rear column (11) and a front column (13) and a working component (12) are provided at the upper end of the base, and the working component (12) is located between the rear column (11) and the front column (13), the maintenance component (2) is provided on the upper side of the bed (1) base, and the maintenance component (2) includes a gantry (21), and the inner side of the gantry (21) is slidably connected to a lifting plate (23), and the lower end of the lifting plate (23) is slidably connected to a brush plate (27), and the maintenance component (21) is provided with a plurality of gantry frames (21). The protection component (2) also includes an oil injection component (28), and the oil injection component (28) is arranged on the upper side of the brush plate (27). The working component (12) includes a workbench (121), and the lower end of the workbench (121) is connected to an upper slide seat (122), and the lower end of the upper slide seat (122) is slidably connected to a lower slide seat (123), and a groove (124) and an oil injection hole (125) are provided on the upper side of the upper slide seat (122), and the lower end of the oil injection hole (125) is connected to a guide hole (126), and the lower end of the guide hole (126) is connected to an inclined hole (127).

2. A CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: The outer side of the front column (13) is slidably connected to a main oil tank (14), one side of the main oil tank (14) is connected to a boring shaft (16), and the other side is connected to a rear trunk (15).

3. A CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: The inner wall of the gantry (21) is provided with a slide groove (211), and the two ends of the lifting plate (23) are connected to the slide groove (211). At the same time, the upper end of the lifting plate (23) is connected to a cylinder (22), and the cylinder (22) is fixed on the top of the gantry (21).

4. A CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: End plates (25) are fixed at both ends of the lower side of the lifting plate (23), and a screw rod (241) and a guide rod (26) are connected between the end plates (25). A screw block (242) is screwed on the outer side of the screw rod (241), and one end of the screw rod (241) is connected to a motor (24).

5. The CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: The upper end of the brush plate (27) is connected to a guide block (243), and the guide block (243) is connected to the upper screw block (242), and the guide rod (26) slides horizontally through the guide block (243).

6. A CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: The oil injection assembly (28) is arranged on the upper side of the guide block (243), and comprises an oil storage tank (281) and an oil pump (282) connected thereto, and the output end of the oil pump (282) is connected to an oil injection nozzle (284) via an oil pipe (283).

7. A CNC milling and boring machine with a gravity counterweight module according to claim 1, characterized in that: A vertical hole (128) is provided inside the lower sliding seat (123), and the upper end of the vertical hole (128) and the lower end of the inclined hole (127) are both connected to the sliding connection surface of the upper sliding seat (122) and the lower sliding seat (123).

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