Bidirectional clamp for CNC machining of base

Abstract

The utility model relates to a two-way clamp for CNC machining of a base, which comprises a rotating platform and a rotating seat plate, a reverse positioning sleeve is arranged on the rotating seat plate, one end of the rotating seat plate far away from the rotating platform is connected with a staggered seat plate in a sliding mode, two sides of the staggered seat plate are respectively and fixedly connected with a forward positioning seat and a rack, and the forward positioning seat and the rack are arranged on the rotating platform. A plurality of first rotating pressing air cylinders are fixedly connected to the position, located beside the reverse positioning sleeve, of the rotating base plate, a plurality of second rotating pressing air cylinders are fixedly connected to the position, located beside the forward positioning base, of the staggered base plate, a servo motor is arranged on the lower portion of the rotating base plate, and a gear is fixedly connected to a rotating shaft of the servo motor. And the gear is meshed with the rack. The clamp has the advantages that the clamp can meet the positioning and clamping requirements of the end of the base, and the machining efficiency and the machining quality of the base can be improved.

Description

Technical Field

[0001] The utility model relates to the field of machining fixtures, in particular to a bidirectional fixture for CNC machining of a base. Background Art

[0002] An existing type of base is a cylindrical casting used to install other parts and protect the internal components of the base. The outer wall of the base is provided with a raised portion. During the CNC processing process, both ends of the base need to be processed by milling grooves and chamfering.

[0003] For clamping the base, there is a machining fixture with a publication number of CN103949915B, which includes a base, a cylindrical boss protruding upward on the upper surface of the base, and a rotating table is arranged on the boss and wrapping the boss; a dividing hole is arranged on the side surface of the boss of the base, and a spring is installed in the hole, and a dividing block is installed on the spring; a dividing slot is arranged on the inner side wall of the rotating table and cooperates with the dividing hole; a cover plate is fixed on the rotating table, and a pressure plate is movably arranged on the front side of the cover plate and fixed to the front side of the cover plate by a locking handle; the workpiece to be processed is fixed by the hollow cavity formed by the cover plate and the rotating table and the workpiece hole arranged in the center position of the cover plate, and 4 drill sleeve holes are arranged around the center of the cover plate and correspond to the workpiece to be processed.

[0004] The existing fixture cannot meet the processing requirements of placing the two ends of the base upward, so a bidirectional fixture for CNC processing of the base is needed. Utility Model Content

[0005] The purpose of the utility model is to provide a bidirectional clamp for CNC machining of a base, which can adapt to the positioning and clamping requirements of the end of the base and can improve the machining efficiency and machining quality of the base.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bidirectional clamp for CNC machining of a base, comprising a rotating platform and a rotating seat plate, a reverse positioning sleeve is arranged on the rotating seat plate, and a dislocated seat plate is slidably connected to the end of the rotating seat plate away from the rotating platform, and a positive positioning seat and a rack are fixedly connected on both sides of the dislocated seat plate, a plurality of first rotating clamping cylinders are fixedly connected on the rotating seat plate beside the reverse positioning sleeve, a plurality of second rotating clamping cylinders are fixedly connected on the dislocated seat plate beside the positive positioning seat, a servo motor is arranged on the lower part of the rotating seat plate, and a gear is fixedly connected to the rotating shaft of the servo motor, and the gear is meshed with the rack.

[0007] Furthermore, the reverse positioning sleeve is provided with positioning holes and positioning grooves, and the positioning grooves are distributed in a ring array along the positioning holes.

[0008] Furthermore, a plurality of positioning protrusions are provided on the positive positioning seat, and a plurality of the second rotary pressing cylinders are distributed in a ring array along the positive positioning seat.

[0009] Furthermore, the extension directions of the forward positioning seat and the reverse positioning sleeve are perpendicular to each other, a clearance groove is provided on the rotating seat plate at the positioning hole, and the through hole of the reverse positioning sleeve is connected to the clearance groove.

[0010] The beneficial effects of the utility model are: through the coordinated use of a rotating platform, a rotating seat plate, a servo motor, gears, a reverse positioning sleeve, an offset seat plate, a forward positioning seat, a first rotating clamping cylinder and a second rotating clamping cylinder, it can adapt to the positioning and clamping requirements of the base end and can improve the processing efficiency and processing quality of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a first-view schematic diagram of a bidirectional clamp for CNC machining of a base according to the utility model.

[0012] Figure 2 This is a schematic diagram from a second perspective of a bidirectional clamp for CNC machining of a base according to the utility model.

[0013] Figure 3 This is a third-view schematic diagram of a bidirectional clamp for CNC machining of a base according to the utility model.

[0014] In the figure: 1. rotating platform; 2. rotating seat plate; 201. servo motor; 202. gear; 3. reverse positioning sleeve; 301. positioning hole; 302. positioning groove; 4. offset seat plate; 401. rack; 5. forward positioning seat; 6. first rotating clamping cylinder; 7. second rotating clamping cylinder. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] refer to Figure 1-Figure 3A bidirectional fixture for CNC machining of a base is shown, comprising a rotating platform 1 and a rotating seat plate 2, wherein a reverse positioning sleeve 3 is arranged on the rotating seat plate 2, and the reverse positioning sleeve 3 is used to position and place the inverted base product, and the rotating seat plate 2 is slidably connected with a dislocation seat plate 4 at one end away from the rotating platform 1, and the dislocation seat plate 4 can slide up and down, so as to make way for the CNC machining of the inverted base, and the two sides of the dislocation seat plate 4 are respectively fixedly connected with a positive positioning seat 5 and a rack 401, and the positive positioning seat 5 is used to extend into the cylinder of the base to position it, and the reverse positioning sleeve 3 is located on the rotating seat plate 2 A plurality of first rotary clamping cylinders 6 are fixedly connected to the side of the tube 3, a plurality of second rotary clamping cylinders 7 are fixedly connected to the side of the positive positioning seat 5 on the offset seat plate 4, a servo motor 201 is arranged at the lower part of the rotating seat plate 2, the servo motor 201 can drive the gear 202 to rotate, thereby driving the offset seat plate 4 fixed to the rack 401 to rise and fall, a gear 202 is fixedly connected to the rotating shaft of the servo motor 201, the gear 202 is meshed with the rack 401, the pressure heads of the first rotary clamping cylinder 6 and the second rotary clamping cylinder 7 can loosen and clamp the base product by screwing out and retracting.

[0017] The reverse positioning sleeve 3 is provided with a positioning hole 301 and a positioning groove 302 , both of which are used to position and place the inverted base product. The positioning groove 302 can prevent the base product from deflecting, and the positioning grooves 302 are distributed in a ring array along the positioning hole 301 .

[0018] The positive positioning seat 5 is provided with a plurality of positioning protrusions, and the positive positioning seat 5 is used to position and place the positive base product, and the plurality of the second rotary pressing cylinders 7 are distributed in a ring array along the positive positioning seat 5 .

[0019] The extension directions of the forward positioning seat 5 and the reverse positioning sleeve 3 are perpendicular to each other. A clearance groove is provided on the rotating seat plate 2 at the positioning hole 301. The clearance groove makes way for the end of the base when the base is positioned. The through hole of the reverse positioning sleeve 3 is connected to the clearance groove.

[0020] The above embodiments are used to further illustrate the present invention, but the present invention is not limited to these specific implementations. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. A bidirectional fixture for CNC machining of a base, characterized in that: The invention comprises a rotating platform (1) and a rotating seat plate (2), wherein a reverse positioning sleeve (3) is arranged on the rotating seat plate (2), an end of the rotating seat plate (2) away from the rotating platform (1) is slidably connected to a dislocation seat plate (4), two sides of the dislocation seat plate (4) are respectively fixedly connected to a positive positioning seat (5) and a rack (401), a plurality of first rotating pressing cylinders (6) are fixedly connected to the rotating seat plate (2) beside the reverse positioning sleeve (3), a plurality of second rotating pressing cylinders (7) are fixedly connected to the dislocation seat plate (4) beside the positive positioning seat (5), a servo motor (201) is arranged at the lower part of the rotating seat plate (2), a gear (202) is fixedly connected to the rotating shaft of the servo motor (201), and the gear (202) is meshed with the rack (401).

2. A bidirectional fixture for CNC machining of a base according to claim 1, characterized in that: The reverse positioning sleeve (3) is provided with a positioning hole (301) and a positioning groove (302), and the positioning grooves (302) are distributed in a ring array along the positioning hole (301).

3. The bidirectional fixture for CNC machining of a base according to claim 1, characterized in that: A plurality of positioning protrusions are provided on the forward positioning seat (5), and a plurality of the second rotary pressing cylinders (7) are distributed in a ring array along the forward positioning seat (5).

4. The bidirectional fixture for CNC machining of a base according to claim 1, characterized in that: The extension directions of the forward positioning seat (5) and the reverse positioning sleeve (3) are perpendicular to each other; a clearance groove is provided on the rotating seat plate (2) at the positioning hole (301); and the through hole of the reverse positioning sleeve (3) is connected to the clearance groove.

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