CN214186238U - Special fixture for numerical control machining center - Google Patents

Abstract

The utility model provides a numerical control machining center special fixture, including being fixed in anchor clamps base on the machining center workstation, the fixed guide rail on the anchor clamps base to and the first vice mouthful seat of guide rail one end is located to the mount, and can gliding second vice mouthful seat on the guide rail, the work piece dress clamp between first vice mouthful seat and second vice mouthful seat, and the upper surface of anchor clamps base and one of them side surface of anchor clamps base level and smooth the setting, and the face that first vice mouthful seat is relative with second vice mouthful seat levels the setting respectively. The special fixture for the numerical control machining center has a good clamping effect, can ensure that a workpiece is flatly placed and aligned after being clamped and fixed, reduces the adjusting time, and is convenient to use.

Description

Special fixture for numerical control machining center

Technical Field

The utility model belongs to the anchor clamps field, concretely relates to numerical control machining center special fixture.

Background

With the rapid development of the machining industry, a numerical control machining center is widely applied, the numerical control machining center is suitable for machining various workpieces with different specifications and types, machining workpieces with high precision, multiple processes and small batches, the machining precision requirement is high, the flatness of the machining center needs to be adjusted, after the workpieces are fixedly connected to a workbench of the numerical control machining center through a clamp, the workpieces need to be placed flat and aligned, and the conventional clamp needs to be repeatedly measured and adjusted after the workpieces are clamped.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a can put flat the positive numerical control machining center special fixture of putting behind the work piece clamping.

The utility model provides a numerical control machining center special fixture, numerical control machining center special fixture is used for with work piece fixed connection on numerical control machining center workstation, a serial communication port, anchor clamps include anchor clamps base, guide rail, first vice mouthful seat and second vice mouthful seat, the bottom of anchor clamps base can fix in on numerical control machining center's the workstation, first vice mouthful seat is fixed on the anchor clamps base, the guide rail is fixed in on the anchor clamps base, the second vice mouthful a string of locating on the guide rail, and can follow the guide rail orientation first vice mouthful seat slides, or deviates from first vice mouthful seat slides.

Preferably, one side of the first jaw seat facing the second jaw seat is provided with a first step, one side of the second jaw seat facing the first jaw seat is provided with a second step, the first step and the second step are arranged above the guide rail, a clamping space is formed between the first step and the second step, and the clamping space is used for detachably fixing the workpiece.

Preferably, the first step comprises a first surface and a second surface, the first surface and the second surface are vertically arranged, the second step comprises a third surface and a fourth surface, the third surface and the fourth surface are vertically arranged, the first surface and the third surface are oppositely arranged, and the flatness tolerance of the first surface, the second surface, the third surface and the fourth surface is 0.02-0.2 mm.

Preferably, the guide rail comprises a main body part, a first sliding part and a second sliding part, the main body part is fixed on the clamp base, the first sliding part and the second sliding part are arranged on two sides of the main body part, and the second jaw seat is connected with the first sliding part and the second sliding part and can slide towards or away from the first jaw seat along the first sliding part and the second sliding part.

Preferably, the second jaw seat has a first gap with the body portion.

Preferably, the second jaw seat is provided with a first lubricating surface, a second lubricating surface, a third lubricating surface and a fourth lubricating surface, the first lubricating surface is arranged perpendicularly to the second lubricating surface, the third lubricating surface is arranged perpendicularly to the fourth lubricating surface, the first sliding part comprises a first contact surface and a second contact surface which are perpendicular to each other, the first contact surface is in contact with the first lubricating surface, the second contact surface is in contact with the second lubricating surface, the second sliding part comprises a third contact surface and a fourth contact surface which are perpendicular to each other, the third contact surface is in contact with the third lubricating surface, and the fourth contact surface is in contact with the fourth lubricating surface; and the surfaces of the first lubricating surface, the second lubricating surface, the third lubricating surface and the fourth lubricating surface are provided with lubricating materials, and the lubricating materials comprise one or more of copper and graphite.

Preferably, the flatness tolerance of the upper surface and one side surface of the clamp base is 0.02-0.2mm, and the flatness tolerance of the surfaces of the first lubricating surface, the second lubricating surface, the third lubricating surface, the fourth lubricating surface, the first contact surface, the second contact surface, the third contact surface and the fourth contact surface is 0.02-0.2 mm.

Preferably, a second gap is arranged between the second jaw seat and the clamp base, and the second gap is smaller than 0.3 mm.

Preferably, the special clamp for the numerical control machining center further comprises a limiting block, and the limiting block is arranged between the first jaw seat and the second jaw seat.

Preferably, the special fixture for the numerical control machining center further comprises a power device, the power device is used for driving the second jaw seat to slide along the guide rail towards or away from the first jaw seat, the power device comprises an air inlet oil-water separator, a three-way valve, a first electromagnetic control valve, a second electromagnetic control valve, a hydraulic device and an air pressure device, the air inlet oil-water separator is connected with the three-way valve, the three-way valve is further connected with the first electromagnetic control valve and the second electromagnetic control valve respectively, the first electromagnetic control valve is connected with the hydraulic device, the second electromagnetic control valve is connected with the air pressure device, and the hydraulic device is connected with the air pressure device.

The utility model provides a numerical control machining center special fixture can let the work piece reach the effect of putting flat and putting upright after the work piece clamping.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a schematic structural view of a special fixture for a numerical control machining center provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of the special clamp for the numerical control machining center after being clamped, provided by the embodiment of the utility model;

fig. 3 is a schematic side view of the special fixture for a numerical control machining center provided by the embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the following embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

Referring to fig. 1-3, the utility model provides a special fixture for numerical control machining center, special fixture for numerical control machining center is used for with work piece 60 fixed connection on numerical control machining center workstation 70, a serial communication port, the anchor clamps include anchor clamps base 10, guide rail 20, first jaw seat 30 and second jaw seat 40, the bottom of anchor clamps base 10 can be fixed connection on numerical control machining center's workstation, first jaw seat 30 is fixed on anchor clamps base 10, guide rail 20 is fixed in on anchor clamps base 10, second jaw seat 40 is hung and is established on guide rail 20, and can follow guide rail 20 and slide towards first jaw seat 30, or deviate from first jaw seat 30 and slide.

In this embodiment, an open space is formed for clamping the workpiece 60 by erecting and fixing the guide rail 20, the first jaw seat 30 and the second jaw seat 40, so that the clamping is facilitated and the obstruction to the machining process is reduced; the upper surface and one of the side surfaces of the fixture base 10 are flat, so that the workpiece 60 can be quickly laid flat and aligned, and the flatness can be conveniently measured.

Referring to fig. 1 to 3, in a preferred embodiment, a first step 31 is provided on a side of the first jaw seat 30 facing the second jaw seat 40, a second step 41 is provided on a side of the second jaw seat 40 facing the first jaw seat 30, the first step 31 and the second step 41 are provided above the guide rail 20, a clamping space is formed between the first step 31 and the second step 41, the clamping space is used for detachably fixing a workpiece 60, a first end of the workpiece 60 is placed on the first step 31, and the other end of the workpiece 60 is placed on the second step 41.

Referring to fig. 1 to 3, in a preferred embodiment, the first step 31 includes a first surface and a second surface, the first surface and the second surface are vertically disposed, the second step 41 includes a third surface 411 and a fourth surface 412, the third surface 411 and the fourth surface 412 are vertically disposed, the first surface and the third surface 411 are oppositely disposed, and the flatness tolerance of the first surface, the second surface, the third surface 411 and the fourth surface 412 is 0.02 to 0.2 mm.

In this embodiment, the workpiece 60 is placed between the first jaw seat 30 and the second jaw seat 40, and the surface of the first sliding portion opposite to the surface of the second sliding portion directly contacts the workpiece 60, so that the clamping effect is better due to the smooth arrangement, and when the square workpiece 60 is processed, the workpiece 60 can be more quickly placed flat, and the adjustment time is shortened.

Referring to fig. 1 to 3, in a preferred embodiment, the guide rail 20 includes a main body portion 23, a first sliding portion 21 and a second sliding portion 22, the main body portion 23 is fixed on the clamp base 10, the first sliding portion 21 and the second sliding portion 22 are disposed on both sides of the main body portion 23, and the second jaw seat 40 is connected at both ends to the first sliding portion 21 and the second sliding portion 22 and can slide along the first sliding portion 21 and the second sliding portion 22 toward or away from the first jaw seat 30, in this embodiment, the first sliding portion 21, the second sliding portion 22, and the main body portion 23 are an integral body, the first sliding portion 21 and the second sliding portion 22 are finished, or the first sliding portion 21, the second sliding portion 22, and the main body portion 23 are separately manufactured and reconnected, the first sliding portion 21 and the second sliding portion 22 are finished, the first sliding portion 21 and the second sliding portion 22 are disposed such that the contact area between the guide rail 20 and the second jaw seat 40 is small, the second jaw seat 40 is more easily leveled, and the first sliding portion 21 and the second sliding portion 22 are easy to manufacture, easier to store and lower in cost.

Referring to fig. 1-3, in a preferred embodiment, the second jaw seat 40 has a first gap 42 with the body portion 23. The contact area between the guide rail 20 and the second jaw seat 40 is small, so that the second jaw seat 40 is more easily leveled, and the processing precision is ensured.

In a preferred embodiment, the second jaw seat 40 is provided with a first lubrication surface, a second lubrication surface, a third lubrication surface and a fourth lubrication surface, the first lubrication surface is arranged perpendicular to the second lubrication surface, the third lubrication surface and the fourth lubrication surface are arranged perpendicular to each other, the first sliding part comprises a first contact surface 44 and a second contact surface 45 which are perpendicular to each other, the first contact surface 44 is in contact with the first lubrication surface, the second contact surface 45 is in contact with the second lubrication surface, the second sliding part comprises a third contact surface and a fourth contact surface which are perpendicular to each other, the third contact surface is in contact with the third lubrication surface, and the fourth contact surface is in contact with the fourth lubrication surface; the surfaces of the first lubricating surface, the second lubricating surface, the third lubricating surface and the fourth lubricating surface are provided with lubricating materials, the lubricating materials comprise one or more of copper and graphite, the first contact surface 44, the second contact surface 45, the third contact surface and the fourth contact surface can be treated in such a way, the copper and the graphite are low in cost and easy to process, the surfaces of finished products of the copper and the graphite are smooth and good in flatness, in another preferred embodiment, oil filling channels can be further arranged at the joints of the first sliding part 21, the second sliding part 22 and the second jaw seat 40, the second jaw seat 40 can be kept lubricated all the time in the sliding process on the first sliding part 21 and the second sliding part 22 through the oil passing channels, the abrasion of the first sliding part 21, the second sliding part 22 and the second jaw seat 40 is reduced, the precision of the first sliding part 21, the second sliding part 22 and the second jaw seat 40 is kept for a longer time, and the service life of the clamp is prolonged.

In the preferred embodiment, the flatness tolerance of the upper surface and one of the side surfaces of the fixture base 10 is 0.02-0.2mm, and the flatness tolerance of the surfaces of the first, second, third, fourth, first contact surface 44, second contact surface 45, third contact surface and fourth contact surface is 0.02-0.2mm, in the present embodiment, the flatness tolerance of the above-mentioned planes is reduced, the time for adjusting the machining center is reduced, and the machining accuracy can be ensured.

In a preferred embodiment, a second gap 43 is provided between the second jaw seat 40 and the fixture base 10, the second gap 43 is smaller than 0.3mm, in a further preferred embodiment, the second gap is 0.002-0.3mm, in a more preferred embodiment, the second gap 43 is 0.08mm, 0.1mm or 0.12mm, and the second gap 43 is provided between the second jaw seat 40 and the fixture base 10, so that the contact area is reduced, the processing precision is ensured, and the adjustment time is reduced; the second gap 43 is set to a reasonable size, so that machining chips can be prevented from blocking the second gap 43, and the machining precision and the clamping of the workpiece 60 are influenced.

In a preferred embodiment, the present invention further includes a limiting block 80, wherein the limiting block 80 is disposed between the first jaw seat 30 and the second jaw seat 40, in this embodiment, the limiting block 80 is connected with the first jaw seat 30 and the guide rail 20, and is fixed on the fixture base 10, so as to prevent the first step 31 from colliding with the second step 41 to affect the clamping accuracy when the clamping is lost. In a further preferred embodiment, the length of the stop block 80 in the direction of the guide rail 20 is 1-3cm, which prevents the operator from being injured by pinching his hand.

In a preferred embodiment, the present invention further comprises a power device 50, the power device 50 is configured to drive the second jaw seat 40 to slide towards or away from the first jaw seat 30 along the guide rail 20, the power device 50 includes a fixed seat 51 and a power mechanism, the fixed seat 51 is connected with the power mechanism and can be fixed on the fixture base 10 or the numerical control machining center worktable 70, the power mechanism includes an intake oil-water separator 52, a three-way valve 53, a first electromagnetic control valve 54, a second electromagnetic control valve 55, a hydraulic device 56 and a pneumatic device 57, the intake oil-water separator 52 is connected with the three-way valve 53, the three-way valve 53 is further connected with the first electromagnetic control valve 54 and the second electromagnetic control valve 55 respectively, the first electromagnetic control valve 54 is connected with the hydraulic device 56, the second electromagnetic control valve 55 is connected with the pneumatic device 57, the hydraulic device 56 is connected with the pneumatic device 57, the pneumatic device 57 can be fixedly connected with the second jaw seat 40, and may drive the second jaw housing 40 to slide along the rail 20 toward or away from the first jaw housing 30.

In this embodiment, the fixing seat 51 is used for fixing the position of the air pressure device 57 so that the air pressure device 57 is aligned with the axis of the second jaw seat 40, the height of the air pressure device 57 can smoothly drive the second jaw seat 40, the air inlet oil-water separator 52 supplies air to the hydraulic device 56 and the air pressure device 57 through the three-way valve 53, when a workpiece needs to be clamped, the power device 50 is started, the second electromagnetic control valve 55 starts the air pressure device 57 to clamp the fixed workpiece 60, the first electromagnetic control valve 54 starts the hydraulic device 56 to pressurize, further clamp the workpiece 60, prevent the workpiece from moving in the machining process, through the cooperation of the hydraulic device 56 and the pneumatic device 57, the power provided can reach 17500N, the workpiece 60 is ensured to be clamped at any time in the machining process, after the machining process is completed, the hydraulic device 56 is closed, the clamping state is released, the pneumatic device 57 is closed, the workpiece 60 is released, and the pneumatic device 57 retracts to drive the second jaw housing 40 away from the workpiece 60.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent processes that the present invention is used for are changed, or directly or indirectly used in other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a special fixture for numerical control machining center, special fixture for numerical control machining center is used for with work piece fixed connection on numerical control machining center workstation, its characterized in that, anchor clamps include anchor clamps base, guide rail, first vice mouthful seat and second vice mouthful seat, the bottom of anchor clamps base can be fixed connection in on numerical control machining center's the workstation, first vice mouthful seat is fixed on the anchor clamps base, the guide rail is fixed in on the anchor clamps base, the second vice mouthful seat is hung and is located on the guide rail to can follow the guide rail orientation first vice mouthful seat slides, or deviates from first vice mouthful seat slides.

2. The special clamp for the numerical control machining center as recited in claim 1, wherein a first step is provided on a side of the first jaw seat facing the second jaw seat, a second step is provided on a side of the second jaw seat facing the first jaw seat, the first step and the second step are provided above the guide rail, and a clamping space is formed between the first step and the second step, and the clamping space is used for detachably fixing the workpiece.

3. The special fixture for the numerical control machining center according to claim 2, wherein the first step comprises a first surface and a second surface, the first surface and the second surface are vertically arranged, the second step comprises a third surface and a fourth surface, the third surface and the fourth surface are vertically arranged, the first surface and the third surface are oppositely arranged, and the flatness tolerance of the first surface, the second surface, the third surface and the fourth surface is 0.02-0.2 mm.

4. The special clamp for the numerical control machining center as recited in claim 1, wherein the guide rail comprises a main body portion, a first sliding portion and a second sliding portion, the main body portion is fixed on the clamp base, the first sliding portion and the second sliding portion are disposed on two sides of the main body portion, and the second jaw seat is connected with the first sliding portion and the second sliding portion and can slide along the first sliding portion and the second sliding portion toward or away from the first jaw seat.

5. The tool holder as claimed in claim 4, wherein the second jaw seat has a first gap with the body portion.

6. The special fixture for numerical control machining center as recited in claim 4, wherein the second jaw seat is provided with a first lubrication surface, a second lubrication surface, a third lubrication surface and a fourth lubrication surface, the first lubrication surface is disposed perpendicular to the second lubrication surface, the third lubrication surface and the fourth lubrication surface are disposed perpendicular to each other, the first sliding part includes a first contact surface and a second contact surface perpendicular to each other, the first contact surface is in contact with the first lubrication surface, the second contact surface is in contact with the second lubrication surface, the second sliding part includes a third contact surface and a fourth contact surface perpendicular to each other, the third contact surface is in contact with the third lubrication surface, and the fourth contact surface is in contact with the fourth lubrication surface; and the surfaces of the first lubricating surface, the second lubricating surface, the third lubricating surface and the fourth lubricating surface are provided with lubricating materials, and the lubricating materials comprise one or more of copper and graphite.

7. The jig special for a numerical control machining center as claimed in claim 6, wherein the flatness tolerance of the upper surface and one of the side surfaces of the jig base is 0.02 to 0.2mm, and the flatness tolerance of the surfaces of the first lubricating surface, the second lubricating surface, the third lubricating surface, the fourth lubricating surface, the first contact surface, the second contact surface, the third contact surface and the fourth contact surface is 0.02 to 0.2 mm.

8. The special fixture for the numerical control machining center according to claim 1, wherein a second gap is provided between the second jaw seat and the fixture base, and the second gap is smaller than 0.3 mm.

9. The special clamp for the numerical control machining center according to claim 1, further comprising a limiting block, wherein the limiting block is disposed between the first jaw seat and the second jaw seat.

10. The special fixture for a numerical control machining center according to claim 1, further comprising a power device, wherein the power device is configured to drive the second jaw seat to slide along the guide rail toward or away from the first jaw seat, the power device includes an air inlet oil-water separator, a three-way valve, a first electromagnetic control valve, a second electromagnetic control valve, a hydraulic device, and a pneumatic device, the air inlet oil-water separator is connected to the three-way valve, the three-way valve is further connected to the first electromagnetic control valve and the second electromagnetic control valve, respectively, the first electromagnetic control valve is connected to the hydraulic device, the second electromagnetic control valve is connected to the pneumatic device, and the hydraulic device is connected to the pneumatic device.

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