Four-axis machining center for machining inclined holes

Abstract

The utility model discloses a four-axis machining center for machining inclined holes, relates to the technical field of numerical control machining, and provides the following scheme for solving the problems proposed in the background technology: a working table, a first telescopic rod fixedly connected to the front surface of the working table, a strip-shaped frame fixedly connected to the rear end of the first telescopic rod, a movable block slidably connected to the inner bottom wall of the strip-shaped frame, and an inclined hole in the working table; the upper surface of the movable block is fixedly connected with an adjusting assembly. The adjusting lead screw can be rotated to drive the positioning table to rotate through the concave block, the connecting rod and the round rod, so that a part clamped by the two clamping blocks on the positioning table also rotates, a drill bit on the upper portion conveniently conducts inclined hole machining treatment on the part, meanwhile, the concave block is limited by threads on the surface of the adjusting lead screw and a strip-shaped groove, and the inclined hole machining effect of the part is improved. And the deviation condition cannot occur in the machining process, and the part can be adjusted conveniently according to the requirements of inclined holes of different angles.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, in particular to a four-axis machining center for machining inclined holes. Background Technique

[0002] A vertical four-axis machining center is a process test instrument used in the field of mechanical engineering. It usually moves tools such as milling cutters, files, and drills and performs machining operations on the clamped parts to make the parts reach the required features, which is relatively common in the numerical control machining industry.

[0003] At present, when the existing vertical four-axis machining center processes some special-shaped parts or some special-shaped holes, because the traditional vertical four-axis machining center cannot perform tilting and swinging, special tooling required for machining will be specially designed according to the requirements. However, these customized toolings are only applicable to those individual products and are difficult to be universal, resulting in certain limitations in the use process and too high costs. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a four-axis machining center for machining inclined holes is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A four-axis machining center for machining inclined holes includes a workbench. A first telescopic rod is fixedly connected to the front surface of the workbench. The rear end of the first telescopic rod is fixedly connected to a strip-shaped frame. A movable block is slidably connected to the inner bottom wall of the strip-shaped frame. An adjusting assembly is fixedly connected to the upper surface of the movable block. The adjusting assembly includes a strip-shaped plate. An adjusting screw rod is rotatably connected to the front surface of the strip-shaped plate. A chute is opened on the upper surface of the strip-shaped plate. A concave block is slidably connected to the inner bottom wall of the chute. A connecting rod is rotatably connected to the inner wall of the concave block. A positioning plate is fixedly connected to the upper surface of the strip-shaped plate. A round rod is rotatably connected to the inner wall of the positioning plate. A positioning table is fixedly connected to the surface of the round rod. Second telescopic rods are fixedly connected to the front and rear surfaces of the positioning table. Clamping blocks are fixedly connected to the opposite ends of the two second telescopic rods. Two buffer strips are fixedly connected to the inner bottom wall of the positioning table. A rotating groove is opened on the lower surface of the positioning table;

[0007] A first motor is fixedly connected to the front of the workbench. The output end of the first motor is fixedly connected to a first lead screw. A strip-shaped groove is formed on the left side of the workbench. A gantry is slidably connected to the inner wall of the strip-shaped groove. A second motor is fixedly connected to the left side of the gantry. The output end of the second motor is fixedly connected to a second lead screw. A moving block is slidably connected to the inner top wall of the gantry. A third telescopic rod is fixedly connected to the lower surface of the moving block. The output end of the third telescopic rod is fixedly connected to a mounting plate. A driving motor is fixedly connected to the upper surface of the mounting plate. The output end of the driving motor is fixedly connected to a drill bit. A third motor is fixedly connected to the left side of the strip-shaped frame. The output end of the third motor is fixedly connected to a third lead screw.

[0008] Preferably, the rear end of the first lead screw is rotatably connected to the inner wall of the strip-shaped groove, and a first threaded hole adapted to the first lead screw is formed on the front surface of the gantry.

[0009] Preferably, the right end of the second lead screw is rotatably connected to the inner side wall of the gantry, and a second threaded hole adapted to the second lead screw is formed on the side surface of the moving block.

[0010] Preferably, the right end of the third lead screw is rotatably connected to the inner side wall of the strip-shaped frame, and a third threaded hole adapted to the third lead screw is formed on the side surface of the movable block.

[0011] Preferably, the rear end of the adjusting lead screw is rotatably connected to the inner wall of the sliding groove, and an adjusting threaded hole adapted to the adjusting lead screw is formed on the front surface of the concave block. One end of the connecting rod away from the concave block is rotatably connected to the inner wall of the rotating groove through a rotating shaft.

[0012] Preferably, a scale disk is fixedly connected to the left side of the positioning plate. A circular hole adapted to the round rod is formed on the side surface of the scale disk. A circular plate is fixedly connected to the left end of the round rod. A scale pointer is fixedly connected to the surface of the circular plate. During the process of adjusting the angle of the positioning table, the round rod can drive the circular plate and the scale pointer to rotate on the side surface of the scale disk. Since the round rod is fixedly connected to the positioning table, the rotation angle of the positioning table can be directly viewed on the scale disk, which is convenient for use.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. Rotating the adjusting lead screw can drive the positioning table to rotate through the concave block, the connecting rod and the round rod. Therefore, the parts clamped by the two clamping blocks on the positioning table also rotate, which is convenient for the drill bit above to process the inclined holes of the parts. At the same time, the concave block is limited by the thread teeth on the surface of the adjusting lead screw and the strip-shaped groove, and will not shift during the processing, which is convenient for adjusting the parts according to the requirements of inclined holes at different angles;

[0015] 2. When the rotation adjustment screw rod drives the positioning table to rotate, the positioning table can drive the circular plate and the scale pointer to rotate through the round rod. Since the circular plate and the scale pointer are on the scale disk, the rotation angle of the positioning table can be directly viewed through the scale disk, with higher accuracy. Description of the Drawings

[0016] Figure 1 Schematic three-dimensional structure diagram of a four-axis machining center for machining inclined holes proposed by the present utility model;

[0017] Figure 2 A four-axis machining center for machining inclined holes proposed by the present utility model Figure 1 Enlarged schematic diagram of the structure at A in

[0018] Figure 3 Schematic three-dimensional split structure diagram of the round rod of a four-axis machining center for machining inclined holes proposed by the present utility model.

[0019] In the figure: 1 workbench, 2 first telescopic rod, 3 strip-shaped frame, 4 movable block, 5 strip-shaped plate, 6 adjustment screw rod, 7 concave block, 8 connecting rod, 9 positioning plate, 10 round rod, 11 positioning table, 12 second telescopic rod, 13 clamping block, 14 buffer strip, 15 first motor, 16 first screw rod, 17 gantry, 18 second motor, 19 second screw rod, 20 moving block, 21 third telescopic rod, 22 mounting plate, 23 driving motor, 24 drill bit, 25 third motor, 26 third screw rod, 27 scale disk, 28 circular plate, 29 scale pointer. Detailed Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Embodiment 1, referring to Figure 1 and Figure 2, a four-axis machining center for machining inclined holes, including a workbench 1. A first telescopic rod 2 is fixedly connected to the front surface of the workbench 1. The rear end of the first telescopic rod 2 is fixedly connected to a strip-shaped frame 3. A movable block 4 is slidably connected to the inner bottom wall of the strip-shaped frame 3. An adjusting component is fixedly connected to the upper surface of the movable block 4. The adjusting component includes a strip-shaped plate 5. An adjusting screw rod 6 is rotatably connected to the front surface of the strip-shaped plate 5. A chute is formed on the upper surface of the strip-shaped plate 5. A concave block 7 is slidably connected to the inner bottom wall of the chute. The rear end of the adjusting screw rod 6 is rotatably connected to the inner wall of the chute. And an adjusting screw hole adapted to the adjusting screw rod 6 is formed on the front surface of the concave block 7. A connecting rod 8 is rotatably connected to the inner wall of the concave block 7. A positioning plate 9 is fixedly connected to the upper surface of the strip-shaped plate 5. A round rod 10 is rotatably connected to the inner wall of the positioning plate 9. A positioning table 11 is fixedly connected to the surface of the round rod 10. Second telescopic rods 12 are fixedly connected to both the front and rear surfaces of the positioning table 11. Clamping blocks 13 are fixedly connected to the opposite ends of the two second telescopic rods 12. Two buffer strips 14 are fixedly connected to the inner bottom wall of the positioning table 11. A rotating groove is formed on the lower surface of the positioning table 11. One end of the connecting rod 8 away from the concave block 7 is rotatably connected to the inner wall of the rotating groove through a rotating shaft.

[0022] Place the part to be machined on the two buffer strips 14 inside the positioning table 11. The two buffer strips 14 can ensure that the drill bit 24 will not damage the positioning table 11 during part machining. After the two second telescopic rods 12 are activated, they can drive the two clamping blocks 13 to clamp the part. At this time, rotate the adjusting screw rod 6, which can drive the concave block 7 to move back and forth in the chute. During the movement of the concave block 7, it can drive the positioning table 11 to rotate through the connecting rod 8. Since the positioning table 11 is rotatably connected to the positioning plate 9 through the round rod 10, the rotation effect of the positioning table 11 will not be affected, thus facilitating the machining of inclined holes at different angles for the part.

[0023] A first motor 15 is fixedly connected to the front surface of the workbench 1. The output end of the first motor 15 is fixedly connected to a first lead screw 16. A strip-shaped groove is formed on the left side of the workbench 1. A gantry 17 is slidably connected to the inner wall of the strip-shaped groove. The rear end of the first lead screw 16 is rotatably connected to the inner wall of the strip-shaped groove. And a first screw hole adapted to the first lead screw 16 is formed on the front surface of the gantry 17. The first motor 15 can drive the first lead screw 16 to rotate and drive the gantry 17 to move back and forth.

[0024] A second motor 18 is fixedly connected to the left side of the gantry 17. The output end of the second motor 18 is fixedly connected to a second lead screw 19. The right end of the second lead screw 19 is rotatably connected to the inner side wall of the gantry 17. A moving block 20 is slidably connected to the inner top wall of the gantry 17. A second threaded hole adapted to the second lead screw 19 is provided on the side surface of the moving block 20. A third telescopic rod 21 is fixedly connected to the lower surface of the moving block 20, and the output end of the third telescopic rod 21 is fixedly connected to a mounting plate 22. A driving motor 23 is fixedly connected to the upper surface of the mounting plate 22. The output end of the driving motor 23 is fixedly connected to a drill bit 24. The second motor 18 drives the second lead screw 19 to rotate, so as to drive the drill bit 24 to move left and right through the moving block 20. A third motor 25 is fixedly connected to the left side of the strip-shaped frame 3, and the output end of the third motor 25 is fixedly connected to a third lead screw 26. The right end of the third lead screw 26 is rotatably connected to the inner side wall of the strip-shaped frame 3, and a third threaded hole adapted to the third lead screw 26 is provided on the side surface of the movable block 4. The third motor 25 drives the third lead screw 26 to rotate, so as to drive the positioning table 11 to move left and right through the movable block 4.

[0025] Embodiment 2: Refer to Figure 2 and Figure 3 , a dial 27 is fixedly connected to the left side of the positioning plate 9. A circular hole adapted to the round rod 10 is provided on the side surface of the dial 27. A circular plate 28 is fixedly connected to the left end of the round rod 10. A scale pointer 29 is fixedly connected to the surface of the circular plate 28. During the rotation of the positioning table 11, the circular plate 28 and the scale pointer 29 can be driven to rotate through the round rod 10. Since the positions of the circular plate 28 and the scale pointer 29 correspond to those of the dial 27, the rotation angle of the positioning table 11 can be intuitively viewed through the dial 27 and the scale pointer 29, thereby improving the accuracy of the inclined hole machining of the parts.

[0026] Working principle: First, the staff places the parts to be processed on the two buffer strips 14 inside the positioning table 11, and at the same time starts the two second telescopic rods 12 to clamp the parts with the two clamping blocks 13. At this time, the first motor 15, the second motor 18, and the third motor 25 are started respectively. The gantry 17 is driven to move back and forth by the first lead screw 16, the drill bit 24 is driven to move left and right by the second lead screw 19 and the moving block 20, and the positioning table 11 is driven to move left and right by the third lead screw 26 and the movable block 4, so that the position of the drill bit 24 corresponds to the position of the parts on the positioning table 11. At this time, according to the angle requirement of the inclined hole to be processed on the parts, the adjusting lead screw 6 is rotated to make the concave block 7 move back and forth in the chute. During the forward and backward movement of the concave block 7, it can squeeze the positioning table 11 through the connecting rod 8. Since the positioning table 11 is rotatably connected to the positioning plate 9 through the round rod 10, the rotation of the positioning table 11 will not be affected. At the same time, check the position of the scale pointer 29 on the scale disk 27. Since the positioning table 11 can drive the round rod 10 to rotate, the round rod 10 drives the circular plate 28 and the scale pointer 29 to rotate. Therefore, the rotation angle of the positioning table 11 is the same as the angle of the scale pointer 29 on the scale disk 27. By checking the angle on the scale disk 27, the positioning table 11 and the parts clamped on the positioning table 11 are rotated to the angle of the inclined hole to be processed. At this time, the drive motor 23 can be started to perform the inclined hole processing operation on the parts through the drill bit 24.

[0027] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A four-axis machining center for machining inclined holes, comprising a workbench (1), a first telescopic rod (2) being fixedly connected to the front of the workbench (1), a bar frame (3) being fixedly connected to the rear end of the first telescopic rod (2), a movable block (4) being slidably connected to the inner bottom wall of the bar frame (3), and an adjustment component being fixedly connected to the upper surface of the movable block (4), characterized in that: The adjustment assembly comprises a strip plate (5), the front face of the strip plate (5) is rotatably connected to an adjustment screw rod (6), the upper surface of the strip plate (5) is provided with a slide groove, the inner bottom wall of the slide groove is slidably connected to a concave block (7), the inner wall of the concave block (7) is rotatably connected to a connecting rod (8), the upper surface of the strip plate (5) is fixedly connected to a positioning plate (9), the inner wall of the positioning plate (9) is rotatably connected to a round rod (10), the surface of the round rod (10) is fixedly connected to a positioning platform (11), the front and back faces of the positioning platform (11) are fixedly connected to second telescopic rods (12), the opposite ends of the two second telescopic rods (12) are fixedly connected to clamping blocks (13), the inner bottom wall of the positioning platform (11) is fixedly connected to two buffer strips (14), and the lower surface of the positioning platform (11) is provided with a rotation groove; The front of the workbench (1) is fixedly connected to a first motor (15), the output end of the first motor (15) is fixedly connected to a first screw rod (16), a strip groove is provided on the left side of the workbench (1), the inner wall of the strip groove is slidably connected to a gantry (17), a second motor (18) is fixedly connected to the left side of the gantry (17), the output end of the second motor (18) is fixedly connected to a second screw rod (19), the inner top wall of the gantry (17) is slidably connected to a moving block (20), the lower surface of the moving block (20) is fixedly connected to a third telescopic rod (21), and the output end of the third telescopic rod (21) is fixedly connected to a mounting plate (22), the upper surface of the mounting plate (22) is fixedly connected to a driving motor (23), the output end of the driving motor (23) is fixedly connected to a drill bit (24), the left side of the strip frame (3) is fixedly connected to a third motor (25), and the output end of the third motor (25) is fixedly connected to a third screw rod (26).

2. A four-axis machining center for machining inclined holes according to claim 1, characterized in that: The rear end of the first screw rod (16) is rotatably connected to the inner wall of the strip groove, and the front side of the gantry (17) is provided with a first screw hole matched with the first screw rod (16).

3. A four-axis machining center for machining inclined holes according to claim 1, characterized in that: The right end of the second screw rod (19) is rotatably connected to the inner wall of the gantry (17), and a second screw hole matching the second screw rod (19) is provided on the side of the moving block (20).

4. A four-axis machining center for machining inclined holes according to claim 1, characterized in that: The right end of the third screw rod (26) is rotatably connected to the inner wall of the bar frame (3), and a third screw hole matching the third screw rod (26) is provided on the side surface of the movable block (4).

5. The four-axis machining center for machining inclined holes according to claim 1, characterized in that: The rear end of the adjusting screw rod (6) is rotatably connected to the inner wall of the slide groove, and the front side of the concave block (7) is provided with an adjusting screw hole adapted to the adjusting screw rod (6), and the end of the connecting rod (8) away from the concave block (7) is rotatably connected to the inner wall of the rotating groove via a rotating shaft.

6. A four-axis machining center for machining inclined holes according to claim 1, characterized in that: A scale plate (27) is fixedly connected to the left side of the positioning plate (9), a round hole matching the round rod (10) is opened on the side of the scale plate (27), a circular plate (28) is fixedly connected to the left end of the round rod (10), and a scale pointer (29) is fixedly connected to the surface of the circular plate (28).

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