Constant-temperature cutting clamping head of machining center

Abstract

The utility model relates to the technical field of clamping mechanisms, and discloses a constant-temperature cutting clamping head of a machining center, which comprises a clamping seat, a clamp seat, a wedge block, a clamping device, a piston plate, an air cavity and the like, a through groove is arranged in the wedge block, and a corrugated pipe is fixedly connected to the top surface of the wedge block at an upper opening of the through groove. When the clamping mechanism needs to clamp a hollow long-shaft workpiece, the piston plate moves upwards, so that gas in the gas cavity enters the movable cavity through the transmission of the through groove, the corrugated pipe and the connecting groove, the magnetic sliding plate is pushed by gas pressure to slide in the movable cavity, only the magnetic sliding plate moves to the magnetic field range of the magnetic block, and the clamping mechanism is used for clamping the hollow long-shaft workpiece. According to the clamping mechanism, the arc-shaped supporting plates are arranged on the arc-shaped supporting plates, then the magnetic blocks are attracted through the magnetic sliding plates, the magnetic blocks can drive the arc-shaped supporting plates to slide in the sliding grooves, base plates on the arc-shaped supporting plates abut against the inner side walls of the hollow long-shaft workpieces, accordingly, the hollow long-shaft workpieces are clamped and fixed, and the practicability of the clamping mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, in particular to a constant temperature cutting clamping head for a machining center. Background Art

[0002] A clamping mechanism refers to a device used to fix the workpiece in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process can be called a clamping mechanism. The clamping mechanism is an indispensable component in the machining center, which can ensure the stable machining of the workpiece and improve the machining accuracy of the workpiece.

[0003] The existing clamping mechanism is mainly controlled by air pressure or hydraulic pressure, and uses air pressure or hydraulic pressure to control the clamping mechanism to clamp and release the workpiece. However, during use, the existing clamping mechanism often separates the internal clamping and the external clamping. In particular, for the clamping of long shaft workpieces, solid shafts and hollow shafts require two different clamping mechanisms for simultaneous clamping. Therefore, the clamping mechanism has certain limitations. In particular, after the clamping mechanism is replaced, the clamping mechanism needs to be re-calibrated, and the steps are relatively complicated. Utility Model Content

[0004] In response to the shortcomings of the existing clamping mechanism, the utility model provides a constant temperature cutting clamping head for a machining center, which has the advantage of improving the practicality of the clamping mechanism, especially for solid and hollow workpieces with long axes, without the need to replace the clamping mechanism during clamping, thus solving technical problems such as the practicality of the clamping mechanism.

[0005] The utility model provides the following technical solution: a constant temperature cutting clamping head for a machining center, comprising a clamping seat and:

[0006] A flange is fixedly mounted on the bottom surface of the clamping seat, a positioning hole is opened on the top surface of the clamping seat, a clamp seat is slidably sleeved on the upper part of the inner ring side wall of the clamping seat, a ball bearing is mounted on the inner side wall of the clamping seat, a wedge is fixedly mounted on the inner ring side wall of the ball bearing, and the wedge is slidably connected to the clamping seat;

[0007] A clamping device is slidably connected to the inner ring side wall of the wedge block, a piston plate is fixedly sleeved on the bottom end of the wedge block, an air cavity is formed between the outer surface of the wedge block, the piston plate and the inner side wall of the clamping seat, an air inlet is fixedly provided on the lower part of the side wall of the clamping seat, and an air outlet is fixedly provided on the side wall of the clamping seat located on the side of the air inlet;

[0008] A tension spring is fixedly connected to the bottom surface of the piston plate, the bottom end of the tension spring is fixedly connected to the bottom surface of the inner cavity of the clamping seat, and the bottom end of the clamping device is fixedly installed with a connecting seat.

[0009] Preferably, the wedge includes:

[0010] A through groove is provided inside the wedge;

[0011] The bellows is fixedly connected to the top surface of the wedge block and is located at the upper opening of the through groove.

[0012] Preferably, the fixture seat includes:

[0013] An active cavity is provided inside the fixture seat;

[0014] a magnetic slide, slidably connected to the interior of the movable cavity;

[0015] The connecting groove is arranged inside the clamp seat and is located at the lower side of the movable cavity. The lower opening of the connecting groove is connected with the upper opening of the bellows.

[0016] Preferably, the clamping device comprises:

[0017] A slide groove is provided inside the clamping device;

[0018] The arc-shaped support plate is slidably connected to the interior of the sliding groove.

[0019] Preferably, the arc-shaped support plate includes:

[0020] a magnetic block fixedly disposed inside the arc-shaped support plate, wherein the magnetism of the magnetic block is opposite to that of the magnetic slide;

[0021] A backing plate is fixedly connected to the outer surface of the arc-shaped support plate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. By designing through grooves, bellows, slides, arc-shaped support plates and movable chambers, when the clamping mechanism needs to clamp a hollow long-axis workpiece, the piston plate is moved upward so that the gas in the air chamber is transmitted into the movable chamber through the through grooves, bellows and connecting grooves, thereby using air pressure to push the magnetic slide to slide in the movable chamber. The magnetic slide is moved into the magnetic field range of the magnetic block, and then the magnetic slide is used to adsorb the magnetic block, so that the magnetic block slides in the slide with the arc-shaped support plate, causing the pad on the arc-shaped support plate to abut against the inner wall of the hollow long-axis workpiece, thereby clamping and fixing the hollow long-axis workpiece, thereby improving the practicality of the clamping mechanism.

[0024] 2. By designing through grooves, bellows, slides, arc-shaped support plates and movable chambers, when the clamping mechanism completes the normal clamping of the workpiece, as the air pressure is withdrawn, the piston plate will move down with the wedge block, causing the clamping device to release the workpiece. At this time, the arc-shaped support plate will be reset, so that the arc-shaped support plate will apply a clamping force to the workpiece on the clamping device, which can prevent the workpiece from falling after the clamping device releases the workpiece, thereby protecting the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the clamping seat of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the wedge and the fixture seat of the utility model;

[0028] Figure 4 This is a schematic diagram of the internal structure of the clamping device of the present utility model.

[0029] In the figure: 1. Clamping seat; 2. Flange; 3. Positioning hole; 4. Clamping seat; 41. Movable cavity; 42. Magnetic slide; 43. Connecting groove; 5. Ball bearing; 6. Wedge block; 61. Through groove; 62. Bellows; 7. Clamping device; 71. Slide groove; 72. Arc support plate; 73. Magnetic block; 74. Pad; 8. Piston plate; 9. Air cavity; 10. Air inlet; 11. Air outlet; 12. Tension spring; 13. Connecting seat. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-Figure 4A constant temperature cutting clamping head for a machining center includes a clamping seat 1, a flange 2 is fixedly installed on the bottom surface of the clamping seat 1, a positioning hole 3 is opened on the top surface of the clamping seat 1, a clamping seat 4 is slidably sleeved on the upper part of the inner ring side wall of the clamping seat 1, a ball bearing 5 is installed on the inner side wall of the clamping seat 1, a wedge 6 is fixedly installed on the inner ring side wall of the ball bearing 5, the wedge 6 is slidably connected to the clamping seat 1, a clamping device 7 is slidably connected to the inner ring side wall of the wedge 6, a piston plate 8 is fixedly sleeved on the bottom end of the wedge 6, and a gap is formed between the outer surface of the wedge 6 and the piston plate 8 and the inner side wall of the clamping seat 1 Air cavity 9, an air inlet 10 is fixedly provided on the lower part of the side wall of the clamping seat 1, and air pressure enters the air cavity 9, and then the air pressure is used to drive the piston plate 8 and the wedge block 6 to move upward, prompting the clamping device 7 to clamp the workpiece. The side wall of the clamping seat 1 is located on the side of the air inlet 10 and is fixedly provided with an air outlet 11. The bottom surface of the piston plate 8 is fixedly welded with a tension spring 12 for resetting the wedge block 6. The bottom end of the tension spring 12 is fixedly connected to the bottom surface of the inner cavity of the clamping seat 1. The bottom end of the clamping device 7 is fixedly installed with a connecting seat 13 for connecting to the driving mechanism on the machining center to ensure that the workpiece rotates during machining.

[0032] See also Figure 1-Figure 4 A through groove 61 is provided inside the wedge block 6, and a bellows 62 is fixedly connected to the top surface of the wedge block 6 at the upper opening of the through groove 61, so that the gas inside the air cavity 9 can be transmitted to the bellows 62 through the through groove 61.

[0033] See also Figure 1-Figure 4 A movable chamber 41 is provided inside the clamp seat 4, and a magnetic slide 42 is slidably connected to the inside of the movable chamber 41. A connecting groove 43 is provided inside the clamp seat 4 at the lower side of the movable chamber 41. The lower opening of the connecting groove 43 is connected to the upper opening of the bellows 62. The gas is transmitted to the movable chamber 41 by the bellows 62, and then the air pressure is used to push the magnetic slide 42 to slide in the movable chamber 41.

[0034] See also Figure 1-Figure 4 A slide groove 71 is provided inside the clamping device 7, and an arc-shaped support plate 72 is slidably connected inside the slide groove 71 for supporting a hollow long shaft workpiece.

[0035] See also Figure 1-Figure 4 A magnetic block 73 is fixedly set inside the arc-shaped support plate 72. The magnetism of the magnetic block 73 is opposite to that of the magnetic slide 42. A pad 74 is fixedly welded on the outer surface of the arc-shaped support plate 72 to ensure that after the magnetic slide 42 moves to the magnetic field range of the magnetic block 73, the magnetic slide 42 is used to adsorb the magnetic block 73, so that the arc-shaped support plate 72 will slide in the slide groove 71, thereby clamping and fixing the hollow long shaft workpiece, thereby improving the practicality of the clamping mechanism.

[0036] Working principle: When the workpiece needs to be clamped, the workpiece is placed on the clamping device 7, and then the air pressure is introduced into the air cavity 9 through the air inlet 10, and the air pressure is used to push the piston plate 8 and the wedge block 6 upward, and the clamping device 7 is tightened through the inclined surface on the top of the wedge block 6, thereby clamping the workpiece. In this process, if the workpiece to be clamped is a hollow long axis, the piston plate 8 is moved upward at this time, so that the gas in the air cavity 9 is transmitted into the active cavity 41 through the through groove 61, the bellows 62 and the connecting groove 43, thereby using air pressure to push the magnetic slide 42 to slide in the active cavity 41, and the magnetic slide 42 moves to the magnetic block 73, and then the magnetic slide 42 is used to clamp the magnetic block 7. 3 is adsorbed, so that the magnetic block 73 will slide with the arc-shaped support plate 72 in the slide groove 71, causing the pad 74 on the arc-shaped support plate 72 to abut against the inner wall of the hollow long shaft workpiece, thereby clamping and fixing the hollow long shaft workpiece, improving the practicality of the clamping mechanism. Secondly, when the clamping mechanism has completed the normal clamping process on the workpiece, as the air pressure is withdrawn, the piston plate 8 will move down with the wedge block 6, causing the clamping device 7 to release the workpiece. At this time, the arc-shaped support plate 72 is reset, so that the arc-shaped support plate 72 will apply a clamping force to the workpiece on the clamping device 7, which can prevent the workpiece from falling after the clamping device 7 releases the workpiece, thereby protecting the workpiece.

Claims

1. A constant temperature cutting clamping head for a machining center, comprising a clamping seat (1), characterized in that: Also includes: A flange (2) is fixedly mounted on the bottom surface of the clamping seat (1), a positioning hole (3) is provided on the top surface of the clamping seat (1), a clamping seat (4) is slidably sleeved on the upper portion of the inner ring side wall of the clamping seat (1), a ball bearing (5) is mounted on the inner side wall of the clamping seat (1), a wedge block (6) is fixedly mounted on the inner ring side wall of the ball bearing (5), and the wedge block (6) is slidably connected to the clamping seat (1); A clamping device (7) is slidably connected to the inner ring side wall of the wedge block (6), a piston plate (8) is fixedly sleeved on the bottom end of the wedge block (6), an air cavity (9) is formed between the outer surface of the wedge block (6), the piston plate (8) and the inner side wall of the clamping seat (1), an air inlet (10) is fixedly provided on the lower part of the side wall of the clamping seat (1), and an air outlet (11) is fixedly provided on the side of the side of the air inlet (10); A tension spring (12) is fixedly connected to the bottom surface of the piston plate (8), the bottom end of the tension spring (12) is fixedly connected to the bottom surface of the inner cavity of the clamping seat (1), and a connecting seat (13) is fixedly installed at the bottom end of the clamping device (7).

2. The constant temperature cutting clamping head for a machining center according to claim 1, characterized in that: The wedge (6) includes: A through groove (61) is provided inside the wedge block (6); The bellows (62) is fixedly connected to the top surface of the wedge (6) and is located at the upper opening of the through groove (61).

3. The constant temperature cutting clamping head for a machining center according to claim 2, characterized in that: The fixture seat (4) includes: An active cavity (41) is provided inside the clamp seat (4); A magnetic slide (42) slidably connected to the interior of the movable cavity (41); The connecting groove (43) is opened inside the clamp seat (4) and is located on the lower side of the movable cavity (41). The lower opening of the connecting groove (43) is connected to the upper opening of the bellows (62).

4. The constant temperature cutting clamping head for a machining center according to claim 3, characterized in that: The clamping device (7) comprises: A slide groove (71) is provided inside the clamping device (7); The arc-shaped support plate (72) is slidably connected to the interior of the sliding groove (71).

5. The constant temperature cutting clamping head for a machining center according to claim 4, characterized in that: The arc-shaped support plate (72) includes: a magnetic block (73) fixedly disposed inside the arc-shaped support plate (72), wherein the magnetism of the magnetic block (73) is opposite to that of the magnetic slide plate (42); A backing plate (74) is fixedly connected to the outer surface of the arc-shaped support plate (72).

Images