CN210908361U - Floating cutter - Google Patents

Abstract

The utility model belongs to the field of workpiece cutting and polishing, and discloses a floating cutter, which comprises a cutter body and a moving unit for driving the cutter body to move; the cutter body is connected with the moving unit through an elastic column. This cutter passes through the elasticity post and connects, and it is receiving under the circumstances that external blockked, can make the tool bit of cutter can swing, avoids the tool bit impaired.

Description

Floating cutter

Technical Field

The utility model relates to a work piece cutting field of polishing specifically is a floating cutter.

Background

An invention patent application CN201810922266.X is provided in 2018 by the applicant of the Hangzhou corporation for photoelectricity technology limited companies, and discloses a trimmer bit floating mechanism. In the working process of the floating tool apron, the floating tool apron can swing within a certain angle range by utilizing the elastic acting force of the torsion spring, so that the size error of the glass can be effectively compensated. In addition, after the torsion spring generates certain elastic deformation, larger elastic deformation is generated again to require larger acting force, the compensation precision of the floating tool apron can be reduced at the moment, and the arrangement of the compensator can effectively compensate the floating precision of the floating tool apron. Namely, when the floating tool apron swings in a larger angle range, the compensator works, the pin shaft deflects for a certain angle relative to the mounting seat, the precision of the floating tool apron is improved, and the blade is not easy to wear. It is clear that the blade can only be twisted about the axis of the torsion spring, and its floatability needs to be further improved.

The applicant, Ningbo Cindi Automation technology Co., Ltd, filed an invention patent application CN201810316896.2 in 2018, which discloses a universal flexible floating device for tools, comprising a tool, a tool support, a balancing mechanism and a fixing device, wherein the tool is fixedly connected with the tool support through a connecting auxiliary, the tool support is hinged with the fixing device, the balancing mechanism comprises a balancing cylinder, the balancing cylinder is connected with the tool support through a floating joint, the fixing device comprises a first fixing component hinged with the tool, a second fixing component hinged with the balancing mechanism and a mounting plate for the first fixing component and the second fixing component, the first fixing component and the second fixing component are arranged at intervals, the tool has a floating characteristic under the balanced pull force of air pressure through the balancing cylinder, and the detachable and replaceable characteristic of the tool enables the tool to have great compatibility, thereby solving some problems existing in the current flexible deburring tools, and the manufacturing cost is low, reliable and durable. The main working principle of the flexible floating tool lies in that a balance cylinder flattens a tool support to enable a tool to be horizontal all the time under the action of no external force, a flexible floating device has 6 degrees of freedom due to the fact that the tool is made to be flat by the tool support, the tool has 360-degree restoring force in a three-dimensional space under the balance pulling force of air pressure through the balance cylinder, the tool has the floating characteristic, and the size of the floating restoring force is controlled by the air pressure. The proposal leads the cutter to float through the balance cylinder. That is, the solution is actively floating under the action of the balancing cylinder.

And cn201810922266.x is of passive flotation.

The problem that this scheme will solve is: the structural complexity of the active floating mode is overcome, and the limitation of the floating angle of the passive floating mode is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a floating cutter, this cutter pass through the elasticity support connnection, and it is receiving under the external circumstances that blocks, can make the tool bit of cutter can swing, avoids the tool bit impaired.

In order to achieve the above object, the utility model provides a following technical scheme: a floating tool comprises a tool body and a moving unit for driving the tool body to move; the cutter body is connected with the moving unit through an elastic column.

In the floating tool, the elastic column is an elastic rubber column.

In the floating tool, the elastic column is internally provided with a spring coaxially arranged with the elastic column or the outer part of the elastic column is sleeved with a spring coaxially arranged with the elastic column.

In the floating tool, the elastic column comprises a first connecting column connected to the tool body and a second connecting column connected to the moving unit; the first connecting column and the second connecting column are connected through a torsion spring sleeved outside the first connecting column and the second connecting column; the angle limiting module is used for limiting the angle which can swing relatively between the first connecting column and the second connecting column in a preset angle.

In the floating tool, the angle limiting module comprises a limiting column arranged at the free end of the first connecting column and a limiting concave part arranged at the free end of the second connecting column, or the limiting concave part arranged at the free end of the first connecting column and the limiting column arranged at the free end of the second connecting column;

when the cutter body is not under the action of external force, a gap is reserved between the limiting column and the limiting concave part.

In the floating tool, the moving unit comprises a fixed block and a manipulator connected with the fixed block.

In the above floating tool, the center of gravity of the tool body falls on the elastic column.

In the above floating tool, the center of gravity of the tool body is located at the connecting position of the elastic column and the tool body.

In the floating cutter, the cutter body comprises a cutter head and a driving mechanism for driving the cutter head to rotate;

in the floating cutter, the connecting plate is vertically arranged, a horizontal plate is fixedly arranged at the upper part of the connecting plate, a fixed seat is fixedly arranged on the horizontal plate, and the driving mechanism is fixed on the conveying fixed seat.

Compared with the prior art, the beneficial effects of the utility model are that:

this scheme passes through the elasticity post and realizes being connected between mobile unit and the cutter body, and under the condition of the great power that blocks was received to the tool bit of cutter, this power can be conducted on the elasticity post, and the rigid contact with external barrier is avoided in order to make the tool bit swing to elasticity post compression or crooked, protection tool bit.

Drawings

Fig. 1 is a perspective view of embodiment 1 of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention;

fig. 3 is a sectional view of embodiment 2 of the present invention;

fig. 4 is a sectional view of embodiment 3 of the present invention;

fig. 5 is a sectional view of embodiment 4 of the present invention;

fig. 6 is an enlarged view of a part a in fig. 5 according to embodiment 4 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, a floating tool includes a tool body 1 and a moving unit 2 for driving the tool body 1 to move; the cutter body 1 and the moving unit 2 are connected through an elastic column 3.

The elastic column 3 is an elastic rubber column 3.

When the cutter head 11 hits a rigid obstacle, the elastic column 3 will bend or compress, so that the cutter head 11 avoids the obstacle.

More specifically, the tool body 1 includes: tool bit 11, be used for driving 11 pivoted actuating mechanism 12 of tool bit, connecting plate 13, horizontal plate 14, fixing base 15, wherein, connecting plate 13 and 3 fixed connection of elasticity post, horizontal plate 14 welding are at connecting plate 13 top, and fixing base 15 passes through the bolt fastening on horizontal plate 14, and actuating mechanism 12 is fixed on fixing base 15.

The moving unit 2 includes a fixed block 21 and a robot (not shown in the drawings) connected to the fixed block 21; the figure shows the connecting disc 22 of the connecting robot, and the connecting disc 22 is fixedly connected with the fixing block 21. The fixed block 21 is fixedly connected with the end part of the elastic column 3.

Example 2

Referring to fig. 3, fig. 2 shows a cross section of the present embodiment, which is substantially the same as embodiment 1, except that a spring 4 is provided in the elastic rubber column 3, which can increase the elastic modulus of the elastic column 3.

Example 3

Referring to fig. 4, fig. 2 shows a cross section of the present embodiment, which is substantially the same as embodiment 1, except that a spring 4 is sleeved outside the elastic rubber column 3, which can increase the elastic modulus of the elastic column 3.

Example 4

Referring to fig. 5-6, a floating tool includes a tool body 1 and a moving unit 2 for driving the tool body 1 to move; the cutter body 1 and the moving unit 2 are as shown in embodiment 1, and the moving unit 2 is connected through the elastic column 3;

the elastic column 3 comprises a first connecting column 31 connected to the cutter body 1 and a second connecting column 32 connected to the moving unit 2; the first connecting column 31 and the second connecting column 32 are connected through a torsion spring 33 sleeved outside the first connecting column 31 and the second connecting column 32; an angle limiting module used for limiting the angle which can swing relatively between the first connecting column 31 and the second connecting column 32 in a preset angle is arranged between the first connecting column 31 and the second connecting column 32.

In the embodiment, the advantage that the torsion spring 33 has a certain torsion force is fully utilized, so that the tool body 1 can swing around the axis of the torsion spring 33; simultaneously, because the unit 3 of wrench movement still includes first spliced pole 31 and the second spliced pole 32 that has the spacing module of angle, so, can form certain contained angle under the exogenic action between first spliced pole 31 and the second spliced pole 32, and then lead to cutter body 1 except can turning round around torsional spring 33, can also become the swing of certain contained angle with the axle center of torsional spring 33.

In this embodiment, the preset angle preferably oscillates between 2-15 °.

The mode that the angle of relative swinging between the first connecting column 31 and the second connecting column 32 is limited in a preset angle can be selected to be various, for example, one end of the first connecting column 31 can be provided with a spherical cavity, one end of the second connecting column 32 can be provided with a ball head, the ball head is arranged in the spherical cavity, and one part of a ball head shaft extends into the first connecting column 31, so that the purpose of limiting the swinging angle of the first connecting column 31 and the second connecting column 32 can be achieved; it is considered that, in the art, a structure in which two objects swing at a set angle therebetween is applicable to the present embodiment.

Next, the angle limiting module preferred in the present embodiment is described in detail.

As a preferable scheme of this embodiment, the angle limiting module includes a limiting concave part 34 disposed at the free end of the first connecting column 31 and a limiting column 35 disposed at the free end of the second connecting column 32;

when the tool body 1 is not subjected to the action of external force, a gap is formed between the limiting column 35 and the limiting concave part 34.

In other words, under the elastic force of the torsion spring 33, there is a gap between the side wall of the stopper post 35 and the side wall of the stopper recess 34, and there is also a gap between the top of the stopper post 35 and the bottom of the stopper recess 34.

When the external force is large to a certain degree, an included angle is formed between the first connecting column 31 and the second connecting column 32, the limiting column 35 and the limiting concave part 34 are in contact, and the included angle is limited to the maximum degree.

The size of the gap is determined by a preset angle.

Here, it is also necessary to supplement the meaning of the existence of the preset angle, which cannot be excessively large, and if it results in the tool body 1 being freely swingable, the cutting ability will be significantly impaired, which is not allowed, particularly during normal cutting.

Generally, the predetermined angle, the size of the gap, will not be too large, since the floating tool is designed with the initial aim of having unpredictable burrs, small protrusions on the die cast part that are generated during the die casting process, generally the predetermined angle is preferably between 3-8 °.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. A floating tool comprises a tool body and a moving unit for driving the tool body to move; the cutting tool is characterized in that the cutting tool body is connected with the moving unit through an elastic column, and the elastic column is an elastic rubber column; or a spring which is coaxially arranged with the elastic column is arranged in the elastic column or the spring which is coaxially arranged with the elastic column is sleeved outside the elastic column; or the elastic column comprises a first connecting column connected to the cutter body and a second connecting column connected to the moving unit; the first connecting column and the second connecting column are connected through a torsion spring sleeved outside the first connecting column and the second connecting column; the angle limiting module is used for limiting the angle which can swing relatively between the first connecting column and the second connecting column in a preset angle.

2. The floating tool according to claim 1, wherein the angle limiting module comprises a limiting column arranged at the free end of the first connecting column and a limiting concave part arranged at the free end of the second connecting column, or a limiting concave part arranged at the free end of the first connecting column and a limiting column arranged at the free end of the second connecting column;

when the cutter body is not under the action of external force, a gap is reserved between the limiting column and the limiting concave part.

3. The floating cutter according to claim 1 or 2, wherein the moving unit comprises a fixed block and a manipulator connected with the fixed block, and the fixed block is fixedly connected with one end of the elastic column.

4. The floating tool according to claim 1 or 2, wherein the center of gravity of the tool body rests on a resilient post.

5. The floating cutter according to claim 1 or 2, wherein the cutter body comprises a cutter head and a driving mechanism for driving the cutter head to rotate, and the driving mechanism is fixedly connected with the end of the elastic column.

6. The floating cutter according to claim 5, wherein the cutter body further comprises a coupling plate, and the end of the resilient post and the drive mechanism are connected by the coupling plate.

7. The floating cutter according to claim 6, wherein the connecting plate is vertically arranged, a horizontal plate is fixedly arranged at the upper part of the connecting plate, a fixed seat is fixedly arranged on the horizontal plate, and the driving mechanism is fixed on the conveying fixed seat.

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