CN110883588B

CN110883588B - Universal floating fixture

Info

Publication number: CN110883588B
Application number: CN201911307748.5A
Authority: CN
Inventors: 陈彬; 赵建华; 陈留洋; 李敢
Original assignee: Changsha Sisheng Intelligent Device Co ltd
Current assignee: Changsha Sisheng Intelligent Device Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2021-06-15
Anticipated expiration: 2039-12-18
Also published as: CN110883588A

Abstract

The utility model provides an universal anchor clamps that float, including fixed base and with the footstock that base complex has the function of floating, the footstock is including pressing cylinder, positioning pressure plate, the clamp plate that floats, positioning pressure plate is connected with pressing cylinder, is equipped with the universal unsteady plane support column that is used for supporting the clamp plate that floats on the positioning pressure plate, still is equipped with the guide bar on the positioning pressure plate, be equipped with the unsteady hole groove that suits with the guide bar on the clamp plate that floats, the aperture in unsteady hole groove is greater than the diameter of guide bar, still be equipped with the V type on the clamp plate that floats and compress tightly the groove, the swing joint can be dismantled with positioning pressure plate to the clamp plate that floats, the base includes V. The floating type workpiece clamping device can float in the process of pressing the workpiece, automatically align the center of the workpiece, enable the workpiece to be clamped more reliably, reduce the possibility of displacement of the workpiece and improve the machining precision.

Description

Universal floating fixture

Technical Field

The invention relates to the field of tool fixtures, in particular to a universal floating fixture.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. Such as welding jigs, inspection jigs, assembly jigs, machine tool jigs, etc., with machine tool jigs being the most common. When a workpiece is machined on a machine tool, the workpiece needs to be assembled (positioned) and firmly clamped (clamped) before machining in order to enable the surface of the workpiece to meet the technical requirements of the size, the geometric shape, the mutual position precision with other surfaces and the like specified in the drawing. When using ordinary anchor clamps, anchor clamps lack elasticity in the clamping process, and anchor clamps and work piece are complete hard touching, if the clamping position of work piece deviates to some extent, also can not automatic correction, can lead to the machining precision of work piece to descend like this, and production quality descends, still can cause the damage to anchor clamps and work piece, and after anchor clamps damage, need change, the cost is increased. Therefore, the clamping position can be automatically corrected, the workpiece can be clamped more reliably, and the floating clamp capable of improving the machining precision is more and more favored by people.

Disclosure of Invention

The universal floating clamp aims to solve the problems in the background art, can float in the process of pressing a workpiece, automatically aligns the center of the workpiece, enables the workpiece to be clamped more reliably, reduces the possibility of displacement of the workpiece and improves the machining precision.

The technical scheme of the invention is as follows: the utility model provides an universal anchor clamps that float, including fixed base and with the footstock that base complex has the function of floating, the footstock is including pressing cylinder, positioning pressure plate, the clamp plate that floats, positioning pressure plate and pressing cylinder are connected, be equipped with the universal unsteady plane support column that is used for supporting the clamp plate that floats on the positioning pressure plate, still be equipped with the guide bar on the positioning pressure plate, be equipped with the unsteady hole groove that suits with the guide bar on the clamp plate that floats, the aperture in unsteady hole groove is greater than the diameter of guide bar, still be equipped with the V type on the clamp plate that floats and compress tightly the groove, the clamp plate that floats can.

Further, the number of the guide rods is at least two, the floating hole grooves are the same as the number of the guide rods, the guide rods are uniformly arranged around the universal floating plane supporting column, and preferably, the number of the guide rods is two, and the guide rods are symmetrically arranged around the universal floating plane supporting column.

Further, the aperture of the floating hole groove is 1mm larger than the diameter of the guide bar.

Furthermore, the floating pressing plate is connected with the positioning pressing plate through two tension springs, one surface, away from the V-shaped pressing groove, of the floating pressing plate is attached to the end face of the universal floating plane supporting column, and the two tension springs are symmetrically arranged at the two ends of the floating pressing plate.

Furthermore, the contact surface between the floating pressure plate and the universal floating plane support column is a smooth plane.

Further, the base comprises a V-shaped supporting part and an auxiliary positioning part, the V-shaped supporting part is matched with a V-shaped pressing groove of the floating pressing plate and used for pressing the workpiece, and the auxiliary positioning part is used for positioning and preliminarily clamping the workpiece.

Further, the auxiliary positioning component is detachably connected with the V-shaped supporting component, for example, the auxiliary positioning component is connected with the V-shaped supporting component through a bolt structure.

Further, the base also includes a wear pad.

Compared with the prior art, the invention has the following characteristics: the invention realizes positioning by adopting a V-shaped positioning mode, can float in the process of pressing the round rod-shaped workpiece, automatically aligns the center of the workpiece, ensures that the workpiece is more reliably clamped, reduces the possibility of displacement of the workpiece, improves the processing precision, can ensure that the processing precision is less than or equal to 0.02mm, and prolongs the service life of the cutter.

Drawings

FIG. 1 is a schematic view of the top mount structure of the present invention;

FIG. 2 is a schematic view of the base structure of the present invention;

FIG. 3 is a schematic view of the present invention mounted on a machine tool fixture support;

in the figure, 1-floating pressure plate, 101-V-shaped pressing groove, 102-floating hole groove, 2-guide rod, 3-universal floating plane supporting column, 4-tension spring, 5-positioning pressure plate, 51-perforated pin, 6-supporting rod, 61-stop pin, 7-oil cylinder shaft, 8-oil cylinder, 9-base, 91-V-shaped supporting component, 10-matched grinding gasket, 11-auxiliary positioning component, 12-workpiece and 13-tool support.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Examples

As shown in fig. 1-2, the invention is a universal floating fixture, which comprises a fixed base 9 and a footstock which is matched with the base 9 and has a floating function, wherein the footstock comprises a pressing oil cylinder 8, a positioning pressing plate 5, a floating pressing plate 1, a supporting rod 6, a stop pin 61, an oil cylinder shaft 7, a hole forming pin 51 and a tension spring 4, the positioning pressing plate 5 is connected with the pressing oil cylinder 8, the positioning pressing plate 5 is provided with a universal floating plane supporting column 3 for supporting the floating pressing plate 1, the positioning pressing plate 5 is also provided with a guide rod 2, the floating pressing plate 1 is provided with a floating hole groove 102 which is matched with the guide rod 2, the aperture of the floating hole groove 102 is larger than the diameter of the guide rod 2, the floating pressing plate 1 is also provided with a V-shaped pressing groove 101, and the floating pressing plate.

The guide bar 2 of this embodiment is two, and two guide bars 2 set up about 3 symmetries of universal unsteady plane support column, the unsteady clamp plate 1 of this embodiment is the T shape, unsteady hole groove 102 is located T shape head both ends, suit with guide bar 2, and the aperture ratio guide bar 2's the big 1mm of diameter of unsteady hole groove 102 on the unsteady clamp plate 1, be connected through extension spring 4 between unsteady clamp plate 1 and the locating plate 5, make unsteady clamp plate 1 keep away from the terminal surface of the universal unsteady plane support column 3 of one side laminating of V type pressure tank 101, extension spring 4 has two, bilateral symmetry sets up at unsteady clamp plate 1 both ends, the face of contact between unsteady clamp plate 1 and the universal unsteady plane support column 3 is smooth plane, drop-feed emollient on the terminal surface of universal unsteady plane support column 3, make unsteady clamp plate 1 lateral displacement.

The base 9 of this embodiment includes V type supporting component 91 and auxiliary positioning component 11, V type supporting component 91 compresses tightly the groove 101 cooperation with the V type of floating pressure plate 1 for compress tightly work piece 12, auxiliary positioning component 11 is used for fixing a position and preliminary clamp tightly to work piece 12, auxiliary positioning component 11 passes through bolted construction with V type supporting component 91 and is connected, the base 9 of this embodiment still includes match grinding gasket 10, be used for adjusting the left and right sides position of base 9, and then the central symmetry degree of V-arrangement mouth relative to the cutter of V type supporting component 91 on the adjustment base 9, guarantee the accuracy of processing.

When the device is used, firstly, a round bar-shaped workpiece 12 is clamped on a base 9, one end of the workpiece 12 to be processed is close to one side of a V-shaped supporting part 91 on the base 9, the other end of the workpiece 12 is preliminarily clamped through an auxiliary positioning part 11, then a pressing oil cylinder 8 is started, the pressing oil cylinder 8 drives a positioning pressing plate 5 to move downwards, so that a floating pressing plate 1 presses the workpiece 12, a V-shaped pressing groove 101 of the floating pressing plate 1 contacts the workpiece 12, when a symmetrical central shaft of the V-shaped pressing groove 101 and a symmetrical central shaft of the workpiece 12 cannot be connected by the same vertical line, the left side surface and the right side surface of the V-shaped pressing groove 101 are stressed unevenly, further, the floating pressing plate 1 can automatically generate transverse displacement under the pressure difference, the effect of matching and pressing of the V-shaped pressing groove 101 and the workpiece 12 is. As shown in FIG. 3, the present invention can be installed on a machine tool through a tool support 13, and a plurality of embodiments can be installed on the same machine tool, so as to achieve the purpose of simultaneously machining a plurality of workpieces 12.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover in the appended claims all such modifications, variations, equivalents, and uses of the inventive structure or method for obtaining the same effects in other fields.

Claims

1. The utility model provides a universal anchor clamps that float, includes fixed base (9) and the footstock that has the function of floating with base (9) complex, its characterized in that: the ejection seat comprises a pressing oil cylinder (8), a positioning pressing plate (5) and a floating pressing plate (1), the positioning pressing plate (5) is connected with the pressing oil cylinder (8), a universal floating plane supporting column (3) used for supporting the floating pressing plate (1) is arranged on the positioning pressing plate (5), a guide rod (2) is further arranged on the positioning pressing plate (5), a floating hole groove (102) matched with the guide rod (2) is formed in the floating pressing plate (1), the aperture of the floating hole groove (102) is larger than the diameter of the guide rod (2), a V-shaped pressing groove (101) is further formed in the floating pressing plate (1), and the floating pressing plate (1) is movably connected with the positioning pressing plate (5);

the floating pressing plate (1) is connected with the positioning pressing plate (5) through two tension springs (4), so that one surface, away from the V-shaped pressing groove (101), of the floating pressing plate (1) is attached to the end surface of the universal floating plane supporting column (3), and the two tension springs (4) are symmetrically arranged at the two ends of the floating pressing plate (1);

the contact surface between the floating pressure plate (1) and the universal floating plane supporting column (3) is a smooth plane.

2. The gimbal floating fixture of claim 1, wherein: the number of the guide rods (2) is at least two, the number of the floating hole grooves (102) is the same as that of the guide rods (2), and the guide rods (2) are uniformly arranged around the universal floating plane support column (3).

3. The gimbal floating fixture of claim 1, wherein: the number of the guide rods (2) is two, and the guide rods are symmetrically arranged relative to the universal floating plane supporting column (3).

4. The gimbal floating fixture of claim 2, wherein: the aperture of the floating hole groove (102) is 1mm larger than the diameter of the guide rod (2).

5. The gimbal floating fixture of any one of claims 1-4, wherein: the base (9) comprises a V-shaped supporting part (91) and an auxiliary positioning part (11), the V-shaped supporting part (91) is used for being matched with a V-shaped pressing groove (101) of the floating pressing plate (1), and the auxiliary positioning part (11) is used for positioning and preliminarily clamping a workpiece (12).

6. The gimbal floating fixture of claim 5, wherein: the auxiliary positioning part (11) is detachably connected with the V-shaped supporting part (91).

7. The gimbal floating fixture of claim 6, wherein: the auxiliary positioning component (11) is connected with the V-shaped supporting component (91) through a bolt.

8. The gimbal floating fixture of claim 5, wherein: the base (9) further comprises a wear-distribution gasket (10).