CN209986598U

CN209986598U - Rotary floating clamping mechanism for machining center

Info

Publication number: CN209986598U
Application number: CN201920423160.5U
Authority: CN
Inventors: 单健
Original assignee: Dalian Zhengye Precision Machinery Co Ltd
Current assignee: Dalian Zhengye Precision Machinery Co Ltd
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-01-24
Anticipated expiration: 2029-04-01

Abstract

The utility model discloses a clamping mechanism floats with rotation of machining center, its characterized in that: the clamping mechanism comprises a support (1), the support (1) is fixedly supported on a rack of a machining center, an oil cylinder (2) is arranged on the support (1), a support plate (3) is connected to the end portion of a working shaft of the oil cylinder (2), the support plate (3) is located below the support (1), guide rods (4) are respectively arranged at two ends of the support plate (3), the guide rods (4) are slidably connected in guide sleeves (5), and the guide sleeves (5) are arranged on the support (1).

Description

Rotary floating clamping mechanism for machining center

Technical Field

The utility model relates to an anchor clamps, especially a clamping mechanism floats with rotation of machining center.

Background

In the existing machining center, the clamp with the fourth shaft horizontal rotating table is generally directly installed on the horizontal rotating table, and the clamp and the horizontal rotating table are connected into an integral structure. Generally, a clamping mode of one pressing point and one oil cylinder is adopted, the horizontal rotary table needs to bear the self weight of a clamping device, so that the load of the horizontal rotary table is increased, the service life of the rotary table is influenced, the bearing specification of the rotary table needs to be improved in individual times, the number of the clamping oil cylinders is large, the cost is high, and chip removal is inconvenient. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a compact structure, design benefit, rationally distributed can be along with the unsteady clamping mechanism of horizontal rotary table free rotation's rotation when pressing from both sides tightly.

The technical solution of the utility model is that: the utility model provides a clamping mechanism floats with rotation of machining center which characterized in that: the clamping mechanism comprises a support 1, the support 1 is fixedly supported on a frame of a machining center, an oil cylinder 2 is arranged on the support 1, the end part of a working shaft of the oil cylinder 2 is connected with a support plate 3, the support plate 3 is positioned below the support 1, guide rods 4 are respectively arranged at two ends of the support plate 3, the guide rods 4 are slidably connected in guide sleeves 5, the guide sleeves 5 are arranged on the support 1,

the bottom end face of the supporting plate 3 is connected with a floating shaft 6, the floating shaft 6 is rotatably supported in a bearing sleeve 7 through a bearing, the bearing sleeve 7 is fixedly connected to a floating pressure plate 8, the bottom end of the floating pressure plate 8 is provided with a connecting shaft 9, the connecting shaft 9 is connected with a pressure plate 10, a spherical gasket 11 is further sleeved outside the connecting shaft 9, the spherical gasket 11 is positioned between the supporting plate and the floating pressure plate 8, the bottom end face of the supporting plate 3 is further in threaded connection with an adjusting bolt 12, the adjusting bolt 12 is in threaded connection with a locking nut 13, the floating pressure plate 8 is provided with a pin hole, an anti-rotation pin 14 is inserted in the pin hole, the top end of the anti-rotation pin 14 is inserted in the pin hole formed in the bottom end face of the supporting plate 3, and a press block 15 is arranged on the bottom end,

the outer circumference of the supporting plate 3 is also rotatably connected with a guide shaft 16, the bottom of the guide shaft 16 is rotatably connected in a flange 18 through a self-lubricating bearing 17, the flange 18 is fixedly connected on a bottom plate 19, and the bottom plate 19 is connected with a horizontal turntable of a machining center.

Compared with the prior art, the utility model, have following advantage:

the rotary floating clamping mechanism for the machining center is simple in structure, ingenious in design and reasonable in layout, and a special structure is designed for solving the problems of a clamp used in the traditional machining center in the working process. The horizontal rotary table can rotate along with the rotation of the horizontal rotary table when a workpiece is compressed, namely, the workpiece is machined on the premise of not loosening the workpiece, and the problems that the workload is large, the positioning is frequent, the positioning error is easy to occur and the like in multiple clamping are avoided. The whole structure is compact, the realization is easy, and the reliability is high; because the support part is directly connected to the frame of the machining center, the load bearing of the horizontal rotary table of the machining center can be reduced. Therefore, the clamping mechanism has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1: a rotary floating clamping mechanism for a machining center comprises a support 1 serving as a base, wherein the support 1 is fixedly supported on a frame of the machining center, an oil cylinder 2 is arranged on the support 1, a support plate 3 is connected to the end part of a working shaft of the oil cylinder 2, the support plate 3 is positioned below the support 1, guide rods 4 are respectively arranged at two ends of the support plate 3, the guide rods 4 are slidably connected in guide sleeves 5, the guide sleeves 5 are arranged on the support 1,

The utility model discloses rotation clamping mechanism that floats for machining center's working process as follows: firstly, a workpiece needing to be clamped is placed on a bottom plate 19, the clamped part of the workpiece is positioned below a pressing block 15, then an oil cylinder 2 is started, the oil cylinder 2 drives a supporting plate 3 and all the workpieces below the supporting plate to move downwards, the pressing block 15 moves downwards to clamp the workpiece, and meanwhile, a guide shaft 16 also moves downwards relative to a flange 18;

after the workpiece is positioned, when the horizontal rotary table rotates, the horizontal rotary table drives the bottom plate 19 connected with the horizontal rotary table to rotate together, the guide shaft 16 on the bottom plate 19 drives the support plate 3 to rotate, the support plate 3 and the press plate 10 rotate together relative to the floating shaft 6 under the action of the anti-rotation pin 14, and the press block 15 still compresses the workpiece;

in the pressing process, under the action of pressure, the supporting plate 3 and the pressing plate 10 are close to each other, and the spherical gasket 11 is compressed, so that floating pressing is realized, and various problems caused by overlarge pressing force or rigid pressing are prevented; the floating amount (namely the deformation amount of the spherical washer 11) can be adjusted according to actual conditions, the relative position between the adjusting bolt 12 and the pressure plate 10 can be changed by rotating the adjusting bolt 12, and the adjusting bolt is fixed by the locking nut 13 after being adjusted to the position; during the relative movement of the support plate 3 and the pressure plate 10, the anti-rotation pins 14 can make relative axial movement in the pin holes of the support plate and the pressure plate.

Claims

1. The utility model provides a clamping mechanism floats with rotation of machining center which characterized in that: the clamping mechanism comprises a support (1), the support (1) is fixedly supported on a frame of a machining center, an oil cylinder (2) is arranged on the support (1), a support plate (3) is connected with the end part of a working shaft of the oil cylinder (2), the support plate (3) is positioned below the support (1), guide rods (4) are respectively arranged at two ends of the support plate (3), the guide rods (4) are connected in guide sleeves (5) in a sliding manner, the guide sleeves (5) are arranged on the support (1),

the bottom end face of the supporting plate (3) is connected with a floating shaft (6), the floating shaft (6) is rotatably supported in a bearing sleeve (7) through a bearing, the bearing sleeve (7) is fixedly connected to a floating pressing plate (8), the bottom end of the floating pressing plate (8) is provided with a connecting shaft (9), the connecting shaft (9) is connected with a pressing plate (10), a spherical gasket (11) is further sleeved outside the connecting shaft (9), the spherical gasket (11) is positioned between the supporting plate and the floating pressing plate (8), the bottom end face of the supporting plate (3) is further in threaded connection with an adjusting bolt (12), the adjusting bolt (12) is in threaded connection with a locking nut (13), the floating pressing plate (8) is provided with a pin hole, an anti-rotating pin (14) is inserted in the pin hole formed in the bottom end face of the supporting plate (3), the top end of the anti-rotating pin (14) is inserted in the pin hole formed in, a pressing block (15) is arranged on the bottom end surface of the floating pressing plate (8),

the outer circumference of the supporting plate (3) is further rotatably connected with a guide shaft (16), the bottom of the guide shaft (16) is rotatably connected into a flange (18) through a self-lubricating bearing (17), the flange (18) is fixedly connected onto a bottom plate (19), and the bottom plate (19) is connected with a horizontal rotary table of a machining center.