Fixed beam type gantry numerical control milling and boring machine

Abstract

The utility model discloses a fixed beam type gantry numerical control milling and boring machine which comprises a lower machine base, a sliding block is arranged in the lower machine base through a first lead screw, a milling and boring machining table is arranged on the upper side of the sliding block, an upper machine frame is arranged on the upper side of the lower machine base, and a lifting vertical frame is longitudinally inserted into the top in the upper machine frame in a sliding mode through a second lead screw. A main shaft head and a rotating main shaft are rotationally arranged at the lower end of the lifting vertical frame through a connecting shaft, one end of the connecting shaft is in transmission connection with a first motor through a gear set, and a gear locking mechanism is arranged on the lower portion in the lifting vertical frame. As the main shaft head and the rotating main shaft are rotatably arranged at the lower end of the lifting vertical frame through the connecting shaft, and one end of the connecting shaft is in transmission connection with the first motor through the gear set, the first motor and the gear set drive the connecting shaft to rotate and adjust, and the longitudinal inclination of the main shaft head can be adjusted; and therefore, milling and boring processing at different inclination angles can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of boring and milling machines, in particular to a fixed-beam gantry CNC boring and milling machine. Background Art

[0002] Boring and milling machines are a kind of processing tools commonly used in the processing industry. They combine the functions of boring machines and milling machines in one, making the processing efficiency higher and the precision better, greatly improving the product quality and labor efficiency. Fixed beam gantry CNC milling and boring machines are mainly used to install boring cutters to bore the prefabricated holes of workpieces. They are large in size and consist of a fixed top beam structure. They can be used for boring various large workpieces. They are commonly used machine tools for metal workpiece processing.

[0003] The prior art discloses a fixed-beam gantry CNC milling and boring machine that is easy to position in the axial direction and has an application number of 202322202440.2. The machine includes a machine base, so that the worktable can be quickly installed and disassembled with the Y-axis base, eliminating the trouble of screw installation and position adjustment, and making it more convenient for the maintenance and replacement of the worktable. At the same time, the worktable's quick disassembly and assembly structure makes it more convenient for the workpiece to be axially positioned and adjusted before installation. The rotating connecting rod on one side can also be removed, and then the other side of the worktable can be rotated around the rotating connecting rod through the rotating connecting plate. The worktable can be rotated to slide and remove the workpiece, which is more convenient for the removal of the workpiece after processing. However, it is not convenient to adjust the longitudinal tilt of the spindle head, and thus it is difficult to meet the milling and boring processing requirements at different tilt angles. Utility Model Content

[0004] The utility model aims to provide a fixed-beam gantry CNC milling and boring machine to solve the problem in the prior art that it is inconvenient to adjust the longitudinal inclination of the spindle head, thereby failing to meet the milling and boring processing requirements at different inclination angles.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed-beam gantry CNC milling and boring machine, comprising a lower machine base, a slider is provided inside the lower machine base through a first lead screw, and a milling and boring table is provided on the upper side of the slider, an upper frame is provided on the upper side of the lower machine base, a lifting frame is provided on the top of the upper frame through a second lead screw for longitudinal sliding insertion, a spindle head and a rotating spindle are rotatably provided at the lower end of the lifting frame through a connecting shaft, one end of the connecting shaft is connected to a first motor through a gear set, the gear set comprises a driving gear arranged at one end of the first motor and a driven gear at one end of the connecting shaft, a gear locking mechanism is provided at the lower part of the lifting frame, and a lifting locking mechanism is provided on the upper side of the upper frame.

[0006] Furthermore, the first screw and the second screw each include a screw, one end of which is transmission-connected to a second motor.

[0007] Furthermore, the screw rod is vertically rotatably arranged with the top of the upper frame, and the screw rod is threadedly arranged with the threaded hole in the middle of the lifting stand.

[0008] Furthermore, a stabilizing support plate is provided at the lower end of the lifting frame, and the stabilizing support plate is arranged parallel to the top wall of the upper frame.

[0009] Furthermore, the gear locking mechanism includes a first hydraulic cylinder fixedly arranged in the lifting frame, and a first locking pressure block is provided on the lower side of the first hydraulic cylinder.

[0010] Furthermore, an arc-shaped pressing groove is provided on the inner side of the first locking pressing block, and a first anti-slip pad is provided on the inner wall of the arc-shaped pressing groove.

[0011] Furthermore, the lifting and locking mechanism includes a second hydraulic cylinder arranged in a groove in the upper part of the upper frame, and a second locking pressure block is fixedly provided at one end of the second hydraulic cylinder.

[0012] Furthermore, one side of the second locking pressure block is arranged parallel to the outer wall of the lifting stand, and one side of the second locking pressure block is provided with a second anti-slip pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a spindle head and a rotating spindle are rotatably provided at the lower end of the lifting stand through a connecting shaft, one end of the connecting shaft is connected to a first motor through a gear set, and the gear set includes a driving gear arranged at one end of the first motor and a driven gear at one end of the connecting shaft, so that the connecting shaft is driven to rotate and adjust by the first motor and the gear set, thereby being able to adjust the longitudinal inclination of the spindle head, thereby being able to meet the needs of milling and boring processing with different inclination angles.

[0015] 2. The utility model is provided with a gear locking mechanism in the lower part of the lifting frame, and the gear locking mechanism includes a first hydraulic cylinder fixedly arranged in the lifting frame, and a first locking pressure block is provided on the lower side of the first hydraulic cylinder, so that the first locking pressure block is driven by the first hydraulic cylinder to be pressed on the outside of the driving gear, and the connecting shaft after rotation adjustment can be locked, which is beneficial to improve the stability of the milling and boring spindle after rotation adjustment, and is convenient for improving the machining accuracy of the milling and boring spindle.

[0016] 3. The utility model also has a lifting frame inserted into the top of the upper frame through the longitudinal sliding of the second screw, the second screw includes a screw rod, one end of the screw rod is transmission-connected to the second motor, the screw rod is vertically rotatably arranged with the top of the upper frame, the screw rod is threadedly arranged with the threaded hole in the middle of the lifting frame, so that the lifting frame can be adjusted by driving the screw rod to rotate forward and reversely through the second screw, thereby adjusting the height of the main shaft, and the adjustment is convenient and quick, and the adjustment accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the lifting stand structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the lifting and locking mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the gear locking mechanism structure of the utility model.

[0022] In the figure: 1. lower machine base; 2. upper machine frame; 3. lifting stand; 4. connecting shaft; 5. spindle head; 6. rotating spindle; 7. driven gear; 8. driving gear; 9. first motor; 10. first hydraulic cylinder; 11. first locking block; 12. stabilizing support plate; 13. groove; 14. second hydraulic cylinder; 15. second locking block; 16. second motor; 17. lead screw; 18. threaded hole; 19. milling and boring table; 20. slide block; 21. first lead screw; 22. second anti-skid pad; 23. arc groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4In the embodiment of the utility model, a fixed-beam gantry CNC milling and boring machine comprises a lower machine base 1, a slider 20 is provided inside the lower machine base 1 through a first screw 21, and a milling and boring table 19 is provided on the upper side of the slider 20, the first screw 21 is used to drive the milling and boring table 19 to move and adjust, a fixture is provided on the milling and boring table 19 for fixing the workpiece, an upper frame 2 is provided on the upper side of the lower machine base 1, a lifting frame 3 is inserted at the top of the upper frame 2 through a second screw for longitudinal sliding, the first screw 21 and the second screw both comprise a screw rod 17, one end of the screw rod 17 is transmission-connected to a second motor 16, the screw rod 17 is vertically rotated with the top of the upper frame 2, the screw rod 17 is threadedly arranged with a threaded hole 18 in the middle of the lifting frame 3, so that the screw rod 17 can be driven by the second screw to rotate forward and reversely, so that the lifting frame 3 can be lifted and lowered, thereby adjusting the height of the spindle, and the adjustment is convenient and fast, and the adjustment accuracy is high.

[0025] like Figure 1 and Figure 2 As shown, in order to meet the needs of milling and boring processing at different inclination angles, a stabilizing support plate 12 is provided at the lower end of the lifting frame 3, and the stabilizing support plate 12 is arranged parallel to the top wall of the upper frame 2. The lower end of the lifting frame 3 is rotatably provided with a spindle head 5 and a rotating spindle 6 through a connecting shaft 4. One end of the connecting shaft 4 is connected to a first motor 9 through a gear set transmission. The gear set includes a driving gear 8 arranged at one end of the first motor 9 and a driven gear 7 at one end of the connecting shaft 4, so that the connecting shaft 4 is driven by the first motor 9 and the gear set to rotate and adjust, thereby being able to adjust the longitudinal inclination of the spindle head 5, thereby meeting the needs of milling and boring processing at different inclination angles, and the adjustment is convenient and fast with high precision.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown, in order to lock the spindle head 5 after rotation adjustment, a gear locking mechanism is provided in the lower part of the lifting frame 3, and the gear locking mechanism includes a first hydraulic cylinder 10 fixedly arranged in the lifting frame 3, and a first locking pressure block 11 is provided at the lower side of the first hydraulic cylinder 10, and an arc-shaped pressure groove 23 is provided on the inner side of the first locking pressure block 11, and a first anti-slip pad is provided on the inner wall of the arc-shaped pressure groove 23, so that the first locking pressure block 11 is driven by the first hydraulic cylinder 10 to be pressed on the outside of the driving gear 8, so that the connecting shaft 4 after rotation adjustment can be locked, which is beneficial to improve the stability of the milling and boring spindle after rotation adjustment, and is convenient for improving the machining accuracy of the milling and boring spindle.

[0027] like Figure 1 and Figure 3As shown, in order to lock the lifting frame 3, a lifting locking mechanism is provided on the upper side of the upper frame 2, and the lifting locking mechanism includes a second hydraulic cylinder 14 arranged in the upper groove 13 of the upper frame 2, and a second locking pressure block 15 is fixedly provided at one end of the second hydraulic cylinder 14, so that the second locking pressure block 15 is driven by the second hydraulic cylinder 14 to be pressed on the outer wall of the lifting frame 3, so as to lock the lifting frame 3, and one side of the second locking pressure block 15 is arranged parallel to the outer wall of the lifting frame 3, and one side of the second locking pressure block 15 is provided with a second anti-slip pad 22, which increases the protectiveness of the inner wall of the second locking pressure block 15, which is beneficial to improving the stability of the locking adjustment of the lifting frame 3.

[0028] The working principle and use process of the utility model are as follows: when in use, since the lower end of the lifting frame 3 is rotatably provided with a spindle head 5 and a rotating spindle 6 through a connecting shaft 4, one end of the connecting shaft 4 is connected to a first motor 9 through a gear set transmission, so that the connecting shaft 4 is driven by the first motor 9 and the gear set to rotate and adjust, thereby being able to adjust the longitudinal inclination of the spindle head 5, thereby being able to meet the use of milling and boring processing with different inclination angles, and the adjustment is convenient and fast, with high precision.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fixed beam gantry CNC milling and boring machine, comprising a lower machine base (1), characterized in that: A slider (20) is provided inside the lower machine base (1) via a first lead screw (21), and a milling and boring table (19) is provided on the upper side of the slider (20); an upper frame (2) is provided on the upper side of the lower machine base (1); a lifting frame (3) is inserted into the top of the upper frame (2) via a second lead screw for longitudinal sliding; a spindle head (5) and a rotating spindle (6) are rotatably provided at the lower end of the lifting frame (3) via a connecting shaft (4); one end of the connecting shaft (4) is connected to a first motor (9) via a gear set; a gear locking mechanism is provided at the lower part of the lifting frame (3), and a lifting locking mechanism is provided on the upper side of the upper frame (2).

2. The fixed beam gantry CNC milling and boring machine according to claim 1, characterized in that: The first lead screw (21) and the second lead screw both comprise a lead screw (17), one end of the lead screw (17) being transmission-connected to a second motor (16).

3. The fixed beam gantry CNC milling and boring machine according to claim 2, characterized in that: The screw rod (17) is vertically rotatably arranged at the top of the upper frame (2), and the screw rod (17) is threadedly arranged at a threaded hole (18) in the middle of the lifting stand (3).

4. The fixed beam gantry CNC milling and boring machine according to claim 1, characterized in that: A stabilizing support plate (12) is provided at the lower end of the lifting stand (3), and the stabilizing support plate (12) is arranged parallel to the top wall of the upper frame (2).

5. The fixed beam gantry CNC milling and boring machine according to claim 1, characterized in that: The gear locking mechanism comprises a first hydraulic cylinder (10) fixedly arranged in the lifting frame (3), and a first locking pressure block (11) is provided at the lower side of the first hydraulic cylinder (10).

6. The fixed beam gantry CNC milling and boring machine according to claim 5, characterized in that: An arc-shaped pressing groove (23) is provided on the inner side of the first locking pressing block (11), and a first anti-slip pad is provided on the inner wall of the arc-shaped pressing groove (23).

7. The fixed beam gantry CNC milling and boring machine according to claim 1, characterized in that: The lifting and locking mechanism comprises a second hydraulic cylinder (14) arranged in an upper groove (13) of the upper frame (2), and a second locking pressure block (15) is fixedly provided at one end of the second hydraulic cylinder (14).

8. The fixed beam gantry CNC milling and boring machine according to claim 7, characterized in that: One side of the second locking pressure block (15) is arranged parallel to the outer wall of the lifting stand (3), and one side of the second locking pressure block (15) is provided with a second anti-slip pad (22).

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