CN200974176Y - Flotation supporting device - Google Patents

Abstract

The utility model relates to a floating supporting device, which has a supporting seat, at least one accommodating hole is arranged on the supporting seat, and at least one positioning mechanism accommodating hole orthogonal to the axis of the accommodating hole; a supporting rod is slidably It is arranged in the accommodating hole, and the lower part of the supporting rod is provided with an elastic body; a positioning mechanism is accommodated in the aforesaid accommodating hole, and its front end abuts against the supporting rod. The floating support device of the utility model, under the elastic force of the elastic body, makes the top of the support rod contact with the workpiece, and adjusts the pressure of the elastic body within a certain range through the adjusting nut, so that the support rod can be adjusted conveniently. The supporting force of the supported workpiece prevents the supported workpiece from deforming; the contact between the top block of the positioning mechanism and the screw rod adopts a conical surface and an arc surface, which has good guidance and ensures that the support rod can be kept in the The required support height.

Description

floating support device

technical field

The utility model relates to an auxiliary supporting device in workpiece clamping, in particular to a floating supporting device which can ensure processing quality and reduce workpiece deformation.

Background technique

In the process of workpiece machining, the workpiece needs to be clamped. In addition to supporting the positioning surface, a lot of auxiliary supports are usually required to ensure the processing quality of the workpiece and reduce its deformation, especially for large workpieces. , auxiliary support is particularly important.

At present, in mechanical processing, most of the auxiliary supports are jacks. The disadvantage is that due to the rigid contact, the thread controls the contact condition, and it is difficult to control the force applied during the clamping process. Excessive clamping force will lead to deformation of the workpiece. , is too small to play a supporting role, and will also cause deformation of the workpiece, which directly affects product quality.

Based on the research and development of the clamping tool for mechanical processing for many years, the designer proposes a floating support device that can overcome the defects in the prior art.

Contents of the invention

The technical problem to be solved by the utility model is to provide a floating support device, which can control the supporting and tightening force of the workpiece through the elastic force of the elastic body, so as to overcome the problem of deformation of the supported workpiece caused by the use of known technologies.

To this end, the utility model proposes a floating support device, wherein the floating support device has a support base, and the support base is provided with at least one accommodating hole, and at least one positioning mechanism perpendicular to the axis of the accommodating hole A receiving hole; a support rod is slidably arranged in the receiving hole, and an elastic body is provided on the lower part of the support rod; a positioning mechanism is accommodated in the above-mentioned receiving hole, and its front end is pressed against the support rod.

In the floating support device as described above, the lower part of the support rod is provided with a support rod slope along the axis direction, and the front end of the positioning mechanism has a positioning slope matched with the support rod slope.

The floating support device as described above, wherein, the accommodating hole is a through hole, and the lower part of the elastic body is provided with an adjusting nut.

The above-mentioned floating support device, wherein, the support rod and the positioning mechanism are respectively provided with positioning grooves along the axis direction, and the support seat is provided with at least two axes respectively connected to the support rod and the positioning mechanism. Orthogonal screw holes, positioning screws are arranged in the screw holes, and the positioning screws are respectively embedded in the positioning grooves.

The above-mentioned floating support device, wherein, the slope of the support rod and the positioning slope of the positioning mechanism are respectively set at 90 degrees to the positioning grooves provided on the support rod and the positioning mechanism.

The floating support device as described above, wherein the positioning mechanism is composed of a jacking block and a screw rod, the front end of the jacking block is formed with a positioning slope, and the front end of the screw rod abuts against the rear end of the jacking block.

The above-mentioned floating support device, wherein, at the front end of the screw rod and the rear end of the top block, one end is formed as an arc surface, and the other end is formed as a tapered surface.

The floating support device as described above, wherein the positioning mechanism is a screw, and a positioning slope is formed at the front end of the screw.

The above-mentioned floating support device, wherein a screw hole is provided on the top of the support rod, and a support head matched with the workpiece is fixed in the screw hole.

The floating support device as described above, wherein the length of the positioning groove matches the longitudinal adjustment distance of the support rod.

Features and advantages of the utility model are:

1. The floating support device of the present invention, under the elastic force of the elastic body, makes the top of the support rod contact the workpiece, and adjusts the pressure of the elastic body within a certain range through the adjusting nut, so that the support can be adjusted conveniently The supporting force of the rod on the supported workpiece keeps the supported workpiece from deforming.

2. In the floating support device of the present invention, the contact between the top block of the positioning mechanism and the screw rod adopts a conical surface and an arc surface, which has good guidance, thereby ensuring that the front end of the screw rod and the rear end of the top block are stable and tight contact with each other, so that the positioning slope at the front end of the jack block can stably abut against the slope of the support rod and self-lock, and finally ensure that the support rod can be kept at the required support height.

3. The floating support of the utility model can fix the support head matching the surface shape and size of the supported workpiece on the top of the support rod as required, so that the support range of the utility model can be adjusted.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the floating support device of the present utility model;

Fig. 2 is a schematic cross-sectional view of the floating support device of the present invention;

Fig. 3 is a schematic sectional view along line B-B in Fig. 2;

Fig. 4 is a schematic view of the use state of the floating support device of the present invention.

Detailed ways

The specific implementation of the utility model is now described in detail with reference to the accompanying drawings, so as to make the technical effects, technical features and technical problems to be solved of the utility model more obvious.

As shown in Figures 1 to 4, a floating support device proposed by the utility model has a support base 7, and the support base 7 is provided with at least one accommodation hole 71, and at least one shaft perpendicular to the axis of the accommodation hole 71 The positioning mechanism accommodation hole 72; a support rod 4 can be slidably arranged in the accommodation hole 71, the bottom of the support rod 4 is provided with an elastic body 3, and the top of the support rod 4 protrudes from the support seat 7 is provided; a positioning mechanism A is accommodated in the above-mentioned receiving hole 72, and its front end abuts against the support rod 4. In order to make the supporting force of the supporting rod 4 to the supported workpiece adjustable, the accommodating hole 71 is formed as a through hole, and an adjusting nut 2 is arranged at the bottom of the elastic body 3, so that it can pass the pressure test or process On-site detection, the pressure of the elastic body is adjusted within a certain range by the adjusting nut 2, so that the supporting force of the support rod 4 on the supported workpiece can be adjusted conveniently, so that the supported workpiece is not deformed. The elastic body 3 may be a spring, or a known object such as an elastic rubber body whose elastic force can be adjusted.

The lower part of the support rod 4 is provided with a support rod slope 41 in the axial direction, and the front end of the positioning mechanism A has a positioning slope 51 matched with the support rod slope 41 .

In this embodiment, the positioning mechanism A is composed of a jacking block 5 and a screw 6 , the front end of the jacking block 5 is formed with the above-mentioned positioning slope 51 , and the front end of the screw 6 abuts against the rear end of the jacking block 5 . In order to make the top block 5 have a good guide, the rear end of the top block 5 and the front end of the screw rod 6 form a conical surface and a circular arc surface, as shown in Figures 2 and 3, which show the front end of the screw rod 6 Formed as a circular arc surface, the rear end of the top block 5 forms a conical surface, otherwise the principle is the same, thereby ensuring that the front end of the screw rod 6 is in stable and close contact with the rear end of the top block 5, and plays a good role in the top block 5. The guiding effect of the front end of the top block 5 enables the positioning slope 51 of the front end of the jacking block 5 to stably abut against the support rod slope 41 of the support rod 4 and self-lock, and finally ensure that the support rod 4 can be kept at the required support position. high.

As another feasible embodiment, the positioning mechanism A can also be a screw (not shown), the front end of the screw is formed with the above-mentioned positioning slope, and the positioning slope is pushed against the lower part of the support rod 4 by rotating the screw. The inclined surface 41 of the support rod enables the support rod 4 to be maintained at the required support height, and can reduce the number of components of the floating support device and reduce the cost.

In order to prevent the support rod 4 and the top block 5 from rotating due to external factors such as vibration during the processing of the workpiece, which will affect the support accuracy, the support base 7 is provided with at least two parts that are respectively connected to the support rod 4 and the positioning mechanism. The screw holes 73 and 74 perpendicular to the axis of A are provided with positioning screws 9 in the screw holes 73 and 74, and a first positioning groove 42 is arranged on the support rod 4 along the axial direction of the support rod, and the positioning screws 9 through the screw hole 73 and fitted into the first positioning groove 42 . A second positioning groove 52 is formed on the top block 5 along its axial direction, and another positioning screw 9 passes through the screw hole 74 and fits in the second positioning groove 52 . Through the positioning screw 9, after the assembly of the floating support of the present invention is completed, the support rod 4 and the top block 5 can only move in the axial direction and cannot rotate. Wherein, the positioning slope 51 of the support rod slope 41 and the positioning mechanism is set at 90 degrees with the positioning grooves 42, 52 provided on the support rod and the positioning mechanism respectively, so as to ensure that the support rod 4 and the top block 5 are in contact with the slope after positioning. The support rod 4 can always be kept at the required support height during the processing of the workpiece.

When the positioning mechanism A is a screw (not shown), the screw is provided with a positioning groove, and the positioning screw is fitted into the positioning groove to prevent the screw from rotating.

The working principle of the present utility model is: as shown in Figure 4, the actual use condition of the floating support 1 of the present utility model is represented. The floating support is used as a common part, and is usually mounted on large-scale processing fixtures 101 such as frames, gear boxes, beams, and axle boxes. As shown in Figure 1, the floating support 1 can be fixed on the fixture 101 through the connecting piece 8 arranged at its lower part, such as a bolt, and when the workpiece 10 is positioned and clamped on the fixture 101, the floating The screw rod 6 of the support 1 is unscrewed, under the elastic force of the elastic body 3, the top of the support rod 4 is in contact with the workpiece 10, and then the positioning slope 51 of the top block 5 is contacted with the support rod slope 41 by tightening the screw rod 6 , fasten the support rod 4 by means of wedge clamping, so as to support the workpiece.

A clearance fit is adopted between the support rod 4 and the accommodation hole 71 of the support seat 7, so that the support rod can slide freely in the accommodation hole 71, so that it has a certain amount of adjustment in height, for example, when setting When its adjustment range is 20mm, the length of the positioning groove 42 on the support rod 4 is set to a height greater than or equal to 20mm, and the position of the support rod slope is determined, and according to the angle of the support rod slope 41 and the positioning slope 51, determine The length of the positioning groove 52 on the top block 5, such as when the inclination angle of the support bar slope 51 is 8°, the length of the positioning groove 52 is 2.8mm, usually the inclination angle is 8°-10°. Described elastic body 3, such as spring, makes support bar 4 contact workpiece 10, and the elastic force of this elastic body 3 should guarantee that workpiece 10 can not be deformed, and its size can be obtained by known methods such as pressure test; Adjust the elastic force of the elastic body 3 within a certain range. The jacking block 5 is that when the support rod 4 touches the workpiece 10, under the action of the screw rod 6, the positioning slope 51 is in contact with the support rod slope 41 and self-locked, and the set screw 9 is set to prevent the support rod from 4. The purpose of the rotation of the screw rod 6 and the top block 5 is to ensure good contact between the two inclined surfaces 41, 51, so that the support rod 4 can always be kept at the required height, and the workpiece 10 is well supported.

In order to make the support range of the support rod 4 adjustable, a screw hole 43 is provided on the top of the support rod 4, and by fixing the support head matched with the surface shape and size of the supported workpiece in the screw hole 43, Thereby the supporting range of the utility model can be enlarged.

But the above-mentioned person is only the concrete implementation mode of the present utility model, should not limit the range of implementation of the present utility model with this, promptly all equivalent changes and modifications made according to the content of the present utility model should still belong to the patent of the present utility model within the scope of the claims.

Claims (10)

1. A floating support device, characterized in that: the floating support device has a support base, the support base is provided with at least one accommodation hole, and at least one positioning mechanism accommodation hole orthogonal to the axis of the accommodation hole; The supporting rod is slidably arranged in the accommodating hole, and the lower part of the supporting rod is provided with an elastic body; a positioning mechanism is accommodated in the aforesaid accommodating hole, and its front end abuts against the supporting rod. 2. The floating support device according to claim 1, characterized in that: the lower part of the support rod is provided with a support rod slope along the axis direction, and the front end of the positioning mechanism has a positioning slope matched with the support rod slope . 3. The floating support device according to claim 1, wherein the accommodating hole is a through hole, and the lower part of the elastic body is provided with an adjusting nut. 4. The floating support device according to claim 2, characterized in that: the support rod and the positioning mechanism are respectively provided with positioning grooves along the axis direction, and the support seat is provided with at least two A screw hole perpendicular to the axis of the support rod and the positioning mechanism, the screw hole is provided with positioning screws, and the positioning screws are respectively fitted in the positioning grooves. 5. The floating support device according to claim 4, characterized in that: the slope of the support rod and the positioning slope of the positioning mechanism are respectively set at 90 degrees to the positioning grooves provided on the support rod and the positioning mechanism. 6. The floating support device according to any one of claims 1 to 3, wherein the positioning mechanism is composed of a jacking block and a screw rod, the front end of the jacking block is formed with a positioning slope, and the front end of the screw rod abuts against the the rear end of the top block. 7. The floating support device according to claim 6, characterized in that, at the front end of the screw rod and the rear end of the top block, one end is formed as an arc surface, and the other end is formed as a conical surface. 8. The floating support device according to any one of claims 1 to 3, wherein the positioning mechanism is a screw, and a positioning slope is formed at the front end of the screw. 9. The floating support device according to any one of claims 1 to 3, wherein a screw hole is provided on the top of the support rod, and a support head matched with the workpiece is fixed in the screw hole. 10. The floating support device according to claim 4, characterized in that: the length of the positioning groove matches the longitudinal adjustment distance of the support rod.

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