Clamp for vertical machining center

Abstract

The utility model relates to the technical field of vertical machining centers, and discloses a clamp for a vertical machining center, which comprises a base, the base is circular and is used for being mounted inside the external vertical machining center, the upper surface of the base is rotatably connected with a rotating rod A, and the upper end of the rotating rod A is rotatably connected with a gear A; and a rotating ring is fixedly connected to the upper surface of the gear A. According to the clamp for the vertical machining center, when the rotating ring rotates, the three movable arms can be driven to rotate through the sleeve plate, and the three movable arms can rotate with the three supporting rods as the centers correspondingly, so that the three positioning wheels can clamp a circular workpiece, and the circular workpiece can be clamped through the three positioning wheels along with clamping of the three positioning wheels; the workpiece can be close to the middles of the three positioning wheels in the grooves, under the action of the servo motor A, the purpose of positioning the workpiece can be achieved, and the situation that the workpiece moves and deviates during machining is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical machining centers, in particular to a clamp for a vertical machining center. Background Art

[0002] A vertical machining center is a highly automated CNC machine tool equipped with a tool magazine and automatic tool changing device. It can accurately process engine cylinder blocks, cylinder heads, crankshafts and other components. In the mold manufacturing industry, it can be used to process various injection molds, stamping mold cavities, cores and other components.

[0003] Common fixtures used in vertical machining centers are required to fix the workpiece on the vertical machining center when processing circular workpieces to ensure the position accuracy and stability of the workpiece during the processing. When the tool of the vertical machining center is processing the workpiece, it is easy to drive the workpiece to move, causing offset and affecting the processing effect. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides a clamp for a vertical machining center, which solves the problems raised in the background art.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a fixture for a vertical machining center, comprising a base.

[0008] The base is circular in shape and is used for being installed inside an external vertical machining center.

[0009] The upper surface of the base is rotatably connected to a rotating rod A, the upper end of the rotating rod A is rotatably connected to a gear A, the upper surface of the gear A is fixedly connected to a rotating ring, three notches are provided inside the rotating ring, the inside of each notch is rotatably connected to a sleeve plate through two rotating shafts, the upper surface of the base is rotatably connected to three support rods, the upper ends of the three support rods are rotatably connected to movable arms, the three movable arms can rotate around the three support rods as the center, the three movable arms are slidably connected to the three sleeve plates respectively, one end of the three movable arms is rotatably connected to a rotating shaft, the outer surface of each rotating shaft is fixedly connected to a positioning wheel, and the outer surface of each positioning wheel is provided with an annular groove.

[0010] In some embodiments, the upper surface of the base is rotatably connected to a rotating rod B, the outer surface of the rotating rod B is fixedly connected to a gear B, and the gear B is meshed with the gear A.

[0011] In some embodiments, two symmetrical discs are placed above the gear A, a spring is fixedly connected between the two discs, the spring is in a static state, and the upper end of the rotating rod is fixedly connected to the disc located below.

[0012] In some embodiments, the inner wall of the groove located on the far right is fixedly connected with a plurality of anti-slip grooves, and the plurality of anti-slip grooves are arranged in a circle.

[0013] In some embodiments, a motor frame A is fixedly connected to the upper surface of the base, one end of the motor frame A is fixedly connected to a servo motor A, and an output end of the servo motor A is fixedly connected to the rotating rod B.

[0014] In some embodiments, the upper surface of the movable arm located on the far right is fixedly connected to a motor frame B, one end of the motor frame B is fixedly connected to a servo motor B, and the output end of the servo motor B is fixedly connected to the rotating shaft located on the far right.

[0015] In some embodiments, the two grooves on the far left are both configured as smooth surfaces.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a fixture for a vertical machining center, which has the following beneficial effects:

[0018] 1. The clamp for the vertical machining center is provided with three positioning wheels and three movable arms. When the rotating ring rotates, the three movable arms can be driven to rotate through the sleeve plate, and the three movable arms can respectively rotate around the three support rods, so that the three positioning wheels can clamp the circular workpiece, and as the three positioning wheels clamp, the workpiece can be moved closer to the middle of the three positioning wheels in the groove. Under the action of the servo motor A, the purpose of positioning the workpiece can be achieved, and the workpiece can be prevented from moving and offsetting during processing, thereby solving the problem raised in the background technology.

[0019] 2. The clamp for the vertical machining center is capable of clamping workpieces of different thicknesses by providing annular grooves on the outer surfaces of the three positioning wheels. By providing multiple anti-slip grooves, when the servo motor B is working, the positioning wheel on the far right can be rotated, and the friction between the positioning wheel on the far right and the workpiece can drive the workpiece to rotate, making it easy to adjust the rotation position of the workpiece, conducive to processing, and quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a cross-sectional view of the front view of the base of the utility model;

[0022] Figure 3 It is a cross-sectional view of the top view of the rotating ring of the utility model;

[0023] Figure 4 This is a schematic diagram of the positioning wheel and anti-skid groove structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the positioning wheel and rotating shaft structure of the utility model.

[0025] In the figure: 1. Base; 2. Rotating rod A; 3. Gear A; 4. Rotating ring; 5. Notch; 6. Bushing; 7. Support rod; 8. Movable arm; 9. Rotating shaft; 10. Positioning wheel; 11. Groove; 12. Rotating rod B; 13. Gear B; 14. Disc; 15. Spring; 16. Anti-skid groove; 17. Servo motor A; 18. Servo motor B. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0027] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In this application, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In the related art, when a tool of a vertical machining center is processing a workpiece, it is easy to cause the workpiece to move, thereby causing offset and affecting the processing effect.

[0030] In order to solve the problems in the related art to a certain extent, the embodiment of the present application provides a clamp for a vertical machining center. When it is needed, it is only necessary to place the circular workpiece on the uppermost disc 14, and then start the servo motor A17, so that the output end of the servo motor A17 drives the rotating rod B12 to rotate, the rotating rod B12 drives the gear B13 to rotate, the gear B13 drives the gear A3 to rotate, the gear A3 drives the rotating ring 4 to rotate, and the rotating ring 4 drives the three sleeves 6 to rotate. The three sleeves 6 can move along the three movable arms 8 respectively, and can drive the movable arms 8 to rotate when moving. The three movable arms 8 approach each other through the three rotating shafts 9, thereby driving the three positioning wheels 1 0 are close to each other to clamp the workpiece. During the clamping process, the workpiece can move toward the middle of the positioning wheel 10 along the groove 11 of the three positioning wheels 10, thereby being positioned. In addition, the workpiece can compress the spring 15. The elastic force of the spring 15 can cause the uppermost disc 14 to exert an upward thrust on the workpiece, thereby making the workpiece in close contact with the three positioning wheels 10. The friction between the anti-slip groove 16 and the workpiece can further improve the stability of the workpiece. After the clamping is completed, the self-locking ability of the servo motor A17 can fix the position of the gear A3, thereby fixing the positions of the three positioning wheels 10, preventing the workpiece from shifting during the processing process, and solving the problems raised in the background technology.

[0031] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0032] Combine Figure 1-Figure 5 , an embodiment of the present application provides a fixture for a vertical machining center, including a base 1.

[0033] The base 1 is circular in shape and is used to be installed inside a vertical machining center outside.

[0034] The upper surface of the base 1 is rotatably connected to a rotating rod A2, and the upper end of the rotating rod A2 is rotatably connected to a gear A3. The upper surface of the gear A3 is fixedly connected to a rotating ring 4. Three notches 5 are provided inside the rotating ring 4. The three notches 5 are arranged in a circle. The inside of each notch 5 is rotatably connected to a sleeve plate 6 through two rotating shafts. The upper surface of the base 1 is rotatably connected to three support rods 7. The upper ends of the three support rods 7 are rotatably connected to movable arms 8. The three movable arms 8 can rotate around the three support rods 7 respectively. The three movable arms 8 are slidably connected to the three sleeve plates 6 respectively. One end of the three movable arms 8 is rotatably connected to a rotating shaft 9. The outer surface of each rotating shaft 9 is fixedly connected to a positioning wheel 10. The three positioning wheels 10 are used to clamp circular workpieces. The outer surface of each positioning wheel 10 is provided with an annular groove 11.

[0035] In some embodiments, the upper surface of the base 1 is rotatably connected to a rotating rod B12, and the outer surface of the rotating rod B12 is fixedly connected to a gear B13, and the gear B13 is meshed with the gear A3.

[0036] Specifically, when the gear B13 rotates, it can drive the gear A3 to rotate, and further drive the rotating ring 4 to rotate.

[0037] In some embodiments, two symmetrical discs 14 are placed above the gear A3 , a spring 15 is fixedly connected between the two discs 14 , the spring 15 is in a static state, and the upper end of the rotating rod is fixedly connected to the disc 14 located below.

[0038] Specifically, the upper disc 14 is used to place a circular workpiece. The elastic force of the spring 15 enables the upper disc 14 to provide an upward thrust to the workpiece, so that the workpiece is squeezed and in close contact with the three positioning wheels 10, thereby improving the stability of the workpiece.

[0039] In some embodiments, a plurality of anti-slip grooves 16 are fixedly connected to the inner wall of the groove 11 located on the far right side, and the plurality of anti-slip grooves 16 are arranged in a circle.

[0040] Specifically, the friction between the groove 11 located on the far right and the workpiece is increased, so that when the positioning wheel 10 located on the far right rotates, the disc 14 can be driven to rotate.

[0041] In some embodiments, a motor frame A is fixedly connected to the upper surface of the base 1 , one end of the motor frame A is fixedly connected to a servo motor A17 , and an output end of the servo motor A17 is fixedly connected to the rotating rod B12 .

[0042] Specifically, the servo motor A17 can provide power for the rotation of the rotating rod B12, thereby facilitating the clamping of the workpiece.

[0043] In some embodiments, the upper surface of the movable arm 8 located on the far right is fixedly connected to a motor frame B, one end of the motor frame B is fixedly connected to a servo motor B18, and the output end of the servo motor B18 is fixedly connected to the rotating shaft 9 located on the far right.

[0044] Specifically, the servo motor B18 can provide power for the rotation of the rotating shaft 9 located on the far right, thereby facilitating the rotation of the workpiece.

[0045] In some embodiments, the two grooves 11 on the leftmost side are both configured to be smooth surfaces.

[0046] Specifically, the friction between the two grooves 11 and the workpiece is reduced, which is beneficial to the rotation of the workpiece.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0048] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for a vertical machining center, comprising a base (1); The base (1) is circular in shape and is used to be installed inside an external vertical machining center; Its characteristics are: The upper surface of the base (1) is rotatably connected to a rotating rod A (2), the upper end of the rotating rod A (2) is rotatably connected to a gear A (3), the upper surface of the gear A (3) is fixedly connected to a rotating ring (4), the interior of the rotating ring (4) is provided with three notches (5), the interior of each notch (5) is rotatably connected to a sleeve plate (6) via two rotating shafts, the upper surface of the base (1) is rotatably connected to three support rods (7), the upper ends of the three support rods (7) are rotatably connected to movable arms (8), the three movable arms (8) can respectively rotate around the three support rods (7), the three movable arms (8) are respectively slidably connected to the three sleeve plates (6), one end of the three movable arms (8) is rotatably connected to a rotating shaft (9), the outer surface of each rotating shaft (9) is fixedly connected to a positioning wheel (10), and the outer surface of each positioning wheel (10) is provided with an annular groove (11).

2. The fixture for a vertical machining center according to claim 1, characterized in that: The upper surface of the base (1) is rotatably connected to a rotating rod B (12), the outer surface of the rotating rod B (12) is fixedly connected to a gear B (13), and the gear B (13) is meshed with the gear A (3).

3. The fixture for a vertical machining center according to claim 1, characterized in that: Two symmetrical discs (14) are placed above the gear A (3), a spring (15) is fixedly connected between the two discs (14), the spring (15) is in a static state, and the upper end of the rotating rod is fixedly connected to the disc (14) located below.

4. The fixture for a vertical machining center according to claim 1, characterized in that: The inner wall of the groove (11) located on the far right is fixedly connected with a plurality of anti-skid grooves (16), and the plurality of anti-skid grooves (16) are arranged in a circumference.

5. The fixture for a vertical machining center according to claim 1, characterized in that: The upper surface of the base (1) is fixedly connected to a motor frame A, one end of the motor frame A is fixedly connected to a servo motor A (17), and the output end of the servo motor A (17) is fixedly connected to a rotating rod B (12).

6. The fixture for a vertical machining center according to claim 1, characterized in that: The upper surface of the movable arm (8) located on the far right is fixedly connected to a motor frame B, one end of the motor frame B is fixedly connected to a servo motor B (18), and the output end of the servo motor B (18) is fixedly connected to the rotating shaft (9) located on the far right.

7. The fixture for a vertical machining center according to claim 1, characterized in that: The two grooves (11) located on the leftmost side are both configured as smooth surfaces.

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