Five-axis machining center fixing structure

Abstract

The utility model discloses a five-axis machining center fixing structure which comprises a working frame, a first motor is installed on the outer side of the working frame, the output end of the first motor is connected with a supporting seat, a second motor is installed in the supporting seat, the output end of the second motor is connected with a placing seat, and the outer side of the placing seat is sleeved with an adjusting ring. And a second spring is connected to the interior of the adjusting ring, a sliding plate is connected to the end of the second spring, and an abutting block is installed at the upper end of the sliding plate. According to the five-axis machining center fixing structure, repulsive force of second electromagnets distributed in a homopolar mode is utilized, a sliding block can be driven to drive an abutting block to move, the abutting block adapts to the face of a special-shaped workpiece to make contact with the special-shaped workpiece, the special-shaped workpiece is fixed in an abutting mode, fixing of the special-shaped workpiece can be flexibly achieved, a movable ring drives a positioning rod to be clamped into a sliding plate, and the fixing effect is good. And the sliding plate can be locked, so that the pressing block is stabilized to fix the special-shaped workpiece, and the use practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of five-axis machining centers, in particular to a fixing structure of a five-axis machining center. Background Art

[0002] The five-axis machining center is a high-tech, high-precision machining center specially used for machining complex curved surfaces. It is currently widely used in various fields such as automobile manufacturing, aerospace, molds, and machinery. The five-axis machining center uses a fixed structure to fix the workpiece, and then performs milling, drilling, boring and other processing on the workpiece.

[0003] At present, the fixed structure of the five-axis machining center can flexibly fix normal-shaped workpieces, and the operation is relatively convenient. However, for special-shaped workpieces, since their surfaces are irregular, it is not conducive to adapting to their irregular surfaces for fast and convenient fixation. Its flexibility of use is low, and the fixed position cannot be flexibly adjusted, resulting in omissions in the processing position of the workpiece.

[0004] Therefore, we proposed a five-axis machining center fixed structure to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a five-axis machining center fixing structure to solve the problem raised by the above-mentioned background technology that for special-shaped workpieces in the current market, since their surfaces are irregular and irregular, it is not conducive to adapting to their irregular surfaces for fast and convenient fixation, and their flexibility of use is low, and the fixing position cannot be flexibly adjusted, resulting in the problem of omission of the processing position of the workpiece.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a fixed structure of a five-axis machining center, comprising a work frame, a first motor is mounted on the outside of the work frame, an output end of the first motor is connected to a support seat, a second motor is mounted inside the support seat, an output end of the second motor is connected to a placement seat, and an adjustment ring is sleeved on the outside of the placement seat;

[0007] A second spring is connected to the interior of the adjusting ring, an end of the second spring is connected to a slide, an upper end of the slide is mounted with a pressing block, second electromagnets are mounted on opposing surfaces of the slide and the inner wall of the adjusting ring, and a locking assembly is provided on the outer side of the adjusting ring for firmly pressing and fixing the special-shaped workpiece;

[0008] A third motor is installed inside the placement seat, an output end of the third motor is connected to a turntable, a connecting rod is installed on the outer side of the turntable, and an end of the connecting rod is connected to an adjusting ring.

[0009] Preferably, the locking assembly includes a first spring connected to the lower side of the outer edge of the adjustment ring, the lower end of the first spring is connected to a movable ring, a sliding rod is installed on the upper side of the movable ring, the opposite surfaces of the sliding rod and the outer edge of the adjustment ring are both installed with a first electromagnet, and a positioning rod is installed on the upper side of the movable ring.

[0010] Preferably, the connecting rod passes through the side wall of the placement seat and is connected to the turntable and the adjustment ring respectively, and the longitudinal center line of the adjustment ring coincides with the longitudinal center line of the turntable.

[0011] Preferably, the slide rod passes through the outer edge of the adjustment ring and is slidably connected to the adjustment ring, and the slide rod and the first electromagnet arranged opposite to the outer edge of the adjustment ring are magnets of the same pole.

[0012] Preferably, the slide plate is an inverted "T"-shaped structure, and the second electromagnet disposed opposite to the slide plate and the inner wall of the adjustment ring is a magnet with the same pole.

[0013] Preferably, the positioning rods are distributed at equal intervals on the upper side of the movable ring close to one end of the slide plate, and the positioning rods pass through the lower wall of the adjustment ring and engage with the slide plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The fixed structure of the five-axis machining center utilizes the repulsive force of the second electromagnet with the same polarity distribution to drive the slider to drive the pressing block to move, so that the pressing block adapts to the surface of the special-shaped workpiece and contacts the special-shaped workpiece, pressing and fixing the special-shaped workpiece, and can flexibly achieve the fixation of the special-shaped workpiece. The moving ring drives the positioning rod to be clamped into the slide, and the slide can be locked, thereby firmly fixing the special-shaped workpiece with the pressing block, thereby improving the practicality of the device;

[0016] (2) The fixed structure of the five-axis machining center can replace the contact position between the pressure block and the workpiece by releasing the lock on the special-shaped workpiece, driving the turntable to drive the adjustment ring to rotate, and adjusting the distribution direction of the pressure block, so that the machining mechanism can fully machine the outer surface of the workpiece to avoid machining dead angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the support seat of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the placement seat of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the mobile ring of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the adjustment ring of the utility model;

[0023] Figure 7 For this utility model Figure 4 A in the figure is an enlarged structural diagram.

[0024] In the figure: 1. work frame; 2. first motor; 3. support base; 4. turntable; 5. second motor; 6. placement base; 7. third motor; 8. connecting rod; 9. adjustment ring; 10. first spring; 11. slide bar; 12. first electromagnet; 13. second electromagnet; 14. second spring; 15. slide plate; 16. pressure block; 17. positioning rod; 18. moving ring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 7 The utility model provides the following technical solution: a fixed structure of a five-axis machining center, including a work frame 1, a first motor 2 is installed on the outside of the work frame 1, the output end of the first motor 2 is connected to a support base 3, a second motor 5 is installed inside the support base 3, the output end of the second motor 5 is connected to a placement base 6, and an adjustment ring 9 is sleeved on the outside of the placement base 6; a third motor 7 is installed inside the placement base 6, the output end of the third motor 7 is connected to a turntable 4, a connecting rod 8 is installed on the outside of the turntable 4, and the end of the connecting rod 8 is connected to the adjustment ring 9;

[0027] Furthermore, the connecting rod 8 passes through the side wall of the placement seat 6 and is connected to the turntable 4 and the adjustment ring 9 respectively. The longitudinal center line of the adjustment ring 9 coincides with the longitudinal center line of the turntable 4. The adjustment ring 9 can be driven to rotate by the rotation of the turntable 4 to adjust the position of the pressure block 16.

[0028] A second spring 14 is connected to the interior of the adjusting ring 9, and a slide 15 is connected to the end of the second spring 14. A pressing block 16 is installed on the upper end of the slide 15. Second electromagnets 13 are installed on the opposing surfaces of the slide 15 and the inner wall of the adjusting ring 9. A locking assembly is provided on the outer side of the adjusting ring 9 to firmly press and fix the special-shaped workpiece.

[0029] Furthermore, the slide 15 is an inverted "T" shaped structure, and the second electromagnet 13 disposed opposite the slide 15 and the inner wall of the adjustment ring 9 is a magnet of the same polarity, which can prevent the slide 15 from separating from the adjustment ring 9, and the slide 15 can be driven to move by connecting the second electromagnet 13 of the same polarity to the power supply;

[0030] Furthermore, the locking assembly includes a first spring 10 connected to the lower side of the outer edge of the adjustment ring 9, the lower end of the first spring 10 is connected to a movable ring 18, a slide rod 11 is installed on the upper side of the movable ring 18, and first electromagnets 12 are installed on the opposite surfaces of the slide rod 11 and the outer edge of the adjustment ring 9, and a positioning rod 17 is installed on the upper side of the movable ring 18;

[0031] Furthermore, the slide rod 11 passes through the outer edge of the adjustment ring 9 and is slidably connected to the adjustment ring 9. The slide rod 11 and the first electromagnet 12 arranged opposite to the outer edge of the adjustment ring 9 are magnets of the same polarity. The slide rod 11 can be used to support and limit the movable ring 18 to ensure that the movable ring 18 maintains vertical movement. When the first electromagnet 12 of the same polarity is powered on, the movable ring 18 can be driven to move.

[0032] Furthermore, the positioning rods 17 are evenly spaced and distributed on the upper side of the movable ring 18 near one end of the slide 15. The positioning rods 17 pass through the lower wall of the adjustment ring 9 and engage with the slide 15, so that when the movable ring 18 moves upward and drives the positioning rods 17 to move upward, the slide 15 can be locked.

[0033] Specifically, the special-shaped workpiece is placed on the placement seat 6, and then the first electromagnet 12 is powered on. The first electromagnets 12 with the same polarity repel each other, and the control slide 11 drives the moving ring 18 to move downward. At this time, the moving ring 18 stretches and stores force on the first spring 10, and at the same time, the moving ring 18 drives the positioning rod 17 to move out of the slide 15, releasing the fixation of the slide 15, and the second electromagnet 13 is powered on. The second electromagnets 13 with the same polarity repel each other, pushing the slide 15 to drive the pressure block 16 installed on the upper end to move, and at the same time, the slide The plate 15 squeezes and stores force on the second spring 14, so that the pressing block 16 adapts to the surface of the special-shaped workpiece and contacts the special-shaped workpiece, pressing and fixing the special-shaped workpiece, and disconnecting the power supply of the first electromagnet 12. At this time, the first spring 10 can control the movable ring 18 to move up and reset, thereby controlling the positioning rod 17 to move up and reset, so that the positioning rod 17 at the corresponding position is stuck in the slide plate 15, locking the slide plate 15, thereby firmly fixing the special-shaped workpiece, disconnecting the power supply of the second electromagnet 13, and then the fixed special-shaped workpiece can be processed;

[0034] The first motor 2, the second motor 5 and the third motor 7 are all servo motors. When the second motor 5 is powered on, the placement seat 6 can be driven to rotate, thereby controlling the workpiece to rotate on the horizontal plane. When the first motor 2 is powered on, the support seat 3 can be driven to rotate, thereby controlling the workpiece to rotate on the vertical plane. The processing angle of the workpiece is adjusted. When the workpiece is reset to be placed vertically, the fixing surface of the workpiece can be adjusted. The first electromagnet 12 is powered on to control the moving ring 18 to drive the positioning rod 17 to move downward, releasing the lock on the slide 15. The second spring 14 can control the slide 15 to reset and move, thereby controlling the pressing block 16 to reset and move, releasing the fixation of the workpiece. The third motor 7 is powered on to control the turntable 4 connected to the output end to rotate, thereby controlling the connecting rod 8 installed on the outside to drive the adjusting ring 9 to rotate, and then adjusting the position of the pressing block 16. According to the above steps, the pressing block 16 is driven to squeeze and fix the workpiece. By changing the contact position between the pressing block 16 and the workpiece, the workpiece can be fully processed. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixed structure for a five-axis machining center, comprising a work frame (1), characterized in that: A first motor (2) is installed on the outside of the working frame (1), the output end of the first motor (2) is connected to a support seat (3), a second motor (5) is installed inside the support seat (3), the output end of the second motor (5) is connected to a placement seat (6), and an adjustment ring (9) is sleeved on the outside of the placement seat (6); The interior of the adjusting ring (9) is connected to a second spring (14), the end of the second spring (14) is connected to a slide plate (15), the upper end of the slide plate (15) is provided with a pressing block (16), the opposite surfaces of the slide plate (15) and the inner wall of the adjusting ring (9) are both provided with a second electromagnet (13), and the outer side of the adjusting ring (9) is provided with a locking assembly for firmly pressing and fixing the special-shaped workpiece; A third motor (7) is installed inside the placement seat (6), the output end of the third motor (7) is connected to a turntable (4), a connecting rod (8) is installed on the outside of the turntable (4), and the end of the connecting rod (8) is connected to an adjustment ring (9).

2. The five-axis machining center fixing structure according to claim 1, characterized in that: The locking assembly comprises a first spring (10) connected to the lower side of the outer edge of the adjusting ring (9); the lower end of the first spring (10) is connected to a moving ring (18); a sliding rod (11) is installed on the upper side of the moving ring (18); first electromagnets (12) are installed on the opposite surfaces of the sliding rod (11) and the outer edge of the adjusting ring (9); and a positioning rod (17) is installed on the upper side of the moving ring (18).

3. The five-axis machining center fixing structure according to claim 1, characterized in that: The connecting rod (8) passes through the side wall of the placement seat (6) and is respectively connected to the turntable (4) and the adjustment ring (9); the longitudinal center line of the adjustment ring (9) coincides with the longitudinal center line of the turntable (4).

4. The five-axis machining center fixing structure according to claim 2, characterized in that: The slide bar (11) passes through the outer edge of the adjustment ring (9) and is slidably connected to the adjustment ring (9); the first electromagnet (12) arranged opposite to the outer edge of the slide bar (11) and the adjustment ring (9) is a magnet with the same pole.

5. The five-axis machining center fixing structure according to claim 1, characterized in that: The slide plate (15) is an inverted "T"-shaped structure, and the slide plate (15) and the second electromagnet (13) arranged opposite to the inner wall of the adjustment ring (9) are magnets of the same pole.

6. The five-axis machining center fixing structure according to claim 2, characterized in that: The positioning rods (17) are distributed at equal intervals on the upper side of the movable ring (18) near one end of the slide plate (15). The positioning rods (17) penetrate the lower wall of the adjustment ring (9) and engage with the slide plate (15).

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