KR102412344B1 - Jig assembly for annular parts - Google Patents

Abstract

The present invention discloses a jig assembly for an annular part that provides a strong fixing force to the annular part, prevents suction or damage to the part's exterior, and enables quick fixation and removal. The present invention is a jig assembly for an annular component that is applied to grind a part of an annular component having an inclined surface on its outer circumferential surface, a center seating portion protruding at a certain height upward so that the inner circumferential surface of the annular component is in close contact, and a portion of the outer circumferential surface of the annular component a base plate having an arc-shaped outer peripheral support wall so as to be in close contact with the base plate; and a fixing lever installed on the upper surface of the base plate to press the annular part to the outer circumferential support wall in a state in which the annular part is seated in the center seating part.

Description

Jig assembly for annular parts

The present invention relates to a jig assembly, and more particularly, to a jig assembly for processing annular parts.

In general, in a component production line, a jig assembly is installed to fix the position and movement of the component. Since such a jig assembly is manufactured according to the external shape of the part, when the type or size of the part is changed, all the jigs mounted on the transfer device must be replaced, and the types of parts produced are diverse or the change period of the part shape is short. In this case, the cost and time required each time the jig is replaced increases.

Specifically, in the parts production line, polishing is performed to improve the precision and gloss of surfaces that have been coated with PVD or CVD to improve the lifespan of workpieces such as cutting tools, chip discharge, and roughness of the cut surface, or by re-polishing the heat-treated surface. It is a precision abrasive processing that improves the quality by lubricating it.

For example, in the polishing process, a lap material such as diamond, aluminum oxide, silicon carbide, kaide, silica, alumina, etc. and a working fluid such as lubricating oil, light oil, spindle oil, HCL, and lubricent are selectively applied between the surface of the workpiece and the lap. Grinding is performed by the relative motion of the workpiece and the lap while inputting alternatively.

On the other hand, a jig assembly for fixing a part (processed product) is provided in a conventional abrasive processing apparatus. For example, referring to FIG. 1 , in a conventional polishing machine, a vacuum suction pipe 62 is connected to a jig 111 for fixing glass on a table 112 , and a motor 221 for elevating and lowering on the jig 111 . Temporarily installed while arranging the polishing jig 211 vertically, the polishing liquid spray nozzle 32 is disposed outside the polishing jig 211 .

The glass is placed on the jig 111 installed in this way, fixed by vacuum pressure, and then the motor 221 is operated to lower the glass surface in a state in which the polishing jig 211 is rotated, and at the same time, the spray nozzle is applied with the polishing liquid. is sprayed onto the glass. In this state, the polishing jig 211 polishes the glass with the polishing liquid.

However, the jig assembly applied to the conventional abrasive processing apparatus is applied to a flat plate type part, and there is a problem in that it is difficult to fix the annular part having a hollow region in the center by a vacuum suction method. Also, when processing metal parts, the pressing force (fixing force) of the jig causes scratches on the exterior, leading to problems such as defective parts. In addition, in fixing the annular part, if it is fixed to one side, a deviation occurs in the thickness of the annular part, leading to product defects.

<Prior Document 1>: Republic of Korea Patent Registration No. 10-2017013 (Announcement date: September 02, 2019)

The present invention was created to solve the above problems, to provide a strong fixing force to the annular part, to prevent suction or damage to the part exterior, and to provide a jig assembly for an annular part that can be quickly fixed and removed The purpose.

According to one embodiment of the present invention for achieving the above object, as a jig assembly for annular parts that is applied to grind a part of the annular part having an inclined surface formed on the outer circumferential surface, the inner circumferential surface of the annular part protrudes a certain height upward so that the inner peripheral surface of the annular part is in close contact. a base plate formed with an arc-shaped outer circumferential support wall so that a portion of the outer circumferential surface of the center seat portion and the annular part is in close contact; And it is installed on the upper surface of the base plate, the annular part is provided with a jig assembly for annular parts comprising a fixing lever for pressing to the outer peripheral support wall in a state in which the center seating portion is seated.

A plurality of protrusions may be formed on the outer circumferential surface of the annular part, and the plurality of protrusions may be seated in the center seating part in a state in which the plurality of protrusions are in close contact with both end sides of the outer circumferential support wall.

A pressing part made of an elastic material so as to be in close contact with the inclined outer circumferential surface of the annular part, a plurality of guide pillar parts protruding from the upper surface of the base plate, and a pressing cover having a moving region in which the pressing part moves in a linear direction therebetween; and a lever handle having a connecting end connected to the pressing unit and moving the connecting end forward and backward.

A casing is mounted on the upper surface of the base plate, a lever end is connected to one side of the lever handle, the lever end is rotatably installed in the casing with a pivotal axis as a starting point, and a link at the end of the lever end A link end is connected through an axis, and the link end is connected to the connecting end through a connecting shaft, and when the lever handle is rotated in a vertical direction with respect to the pivot axis as a starting point, the connecting end supports the outer circumference along the link end It may be moving in a direction away from the wall.

The pressing part may have a shape symmetrical to the outer circumferential support wall so as to be in close contact with the outer circumferential surface of the annular part.

According to the present invention, grinding can be performed by simply fixing the annular part in a state in close contact with the outer peripheral support wall by the fixing lever installed on the base plate, thereby providing a strong fixing force to the annular part and causing suction or damage to the external part of the part. It has the effect of preventing it from happening, and enabling quick fixation and removal.

1 is a configuration diagram showing the configuration of a conventional polishing processing apparatus;
Figure 2a is a perspective view showing a fixed state of the jig assembly for annular parts according to an embodiment of the present invention;
Figure 2b is a perspective view showing an unlocked state of the jig assembly for annular parts according to an embodiment of the present invention;
Figure 2c is a perspective view showing the configuration of the base plate of the jig assembly for annular parts according to an embodiment of the present invention;
Figure 3 is a plan view showing the fixed state of the jig assembly for annular parts according to an embodiment of the present invention;
Figure 4a is a side view showing a fixed state of the jig assembly for annular parts according to an embodiment of the present invention;
Figure 4b is a side view showing an unlocked state of the jig assembly for annular parts according to an embodiment of the present invention;
5 is a state diagram showing the operating state of the fixing lever of the jig assembly for annular parts according to an embodiment of the present invention;
6 is a block diagram of a fixing lever of a jig assembly for annular parts according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventor should properly understand the concept of the term in order to best describe his invention. Based on the principle that can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. In addition, unless otherwise defined in technical terms and scientific terms used, those of ordinary skill in the art to which this invention pertains have the meanings commonly understood. In the following description and accompanying drawings, descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. The accompanying drawings are provided as examples in order to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other forms. Also, like reference numerals refer to like elements throughout. It should be noted that the same components in the drawings are denoted by the same reference numerals wherever possible.

Referring to FIGS. 2A to 2C , the jig assembly for annular parts of the present invention includes a base plate 10 and a fixing lever 41 installed on the base plate 10 .

Specifically, the base plate 10 has a center seating portion 16 formed on the base plate 10 in the form of a circular column, as shown in FIG. 2C . At this time, the center seating portion 16 is a component in which the annular part P is seated and the inner circumferential surface of the annular part P is in close contact. In addition, the base plate 10 has an outer circumferential support wall 15 and a pair of guide pillars 17 protrudingly formed on both sides around the center seating part 160 .

Here, the outer peripheral support wall 15 is composed of a round wall having a semi-arc shape. That is, the outer circumferential support wall 15 is a component to which the outer circumferential surface of the annular component P is in close contact. Meanwhile, a moving region 11e concave with a predetermined area is formed between the pair of guide pillars 17 . Also, on the upper surface of the base plate 10, the peripheral seating portion 11 is formed at a predetermined height to form a substantially circular shape. That is, the peripheral mounting portion 11 has an outer peripheral support wall 15 to which the outer circumferential surface of the annular component P is in close contact and a center mounting portion 16 to which the inner circumferential surface of the annular component P is in close contact, respectively.

Accordingly, as shown in FIGS. 2A and 2B , the annular part P is inserted and seated in the center seating part 16 when the annular part P is processed. At this time, the inner surface of the annular part (P) is in close contact with the center seating portion (16), and the outer surface of the annular part (P) is in close contact with the outer peripheral support wall (15). That is, the annular part (P) is a state in which processing is completed so that the inner and outer surfaces are applied to the finished product, and the jig device of the present invention is in a partial region of the upper part of the annular part (P) in a state in which the annular part (P) is fixed. It is used to diamond-coat annular decoration lines. Therefore, in the jig device of the present invention, the outer circumferential support wall 15 becomes a close reference point, and in this state, the fixing lever 30 presses one side of the annular part P to make precise processing.

At this time, the outer circumferential support wall 15 and the pressing part 42 are formed to have a curvature corresponding to the outer circumferential surface of the annular part (P). By providing a configuration in which the pressing part 42 is firmly fixed to the outer peripheral support wall 15 as a reference point, it is possible to minimize the occurrence of processing deviation during mass production. To this end, preferably, the inner peripheral surface of the annular component (P) is in close contact with the jig device in a state in which the finishing process is completed to prevent the reference point from being misaligned and leading to processing deviation.

Meanwhile, the fixing lever 30 installed on the base plate 10 has the following configuration.

First, the pressure cover 41 is mounted on the upper portion of the pair of guide pillars 17 protruding from the base plate 10 . In addition, the pressing portion 42 is provided in the moving region 11e formed between the pair of guide pillar portions 17 . At this time, the pressing part 42 is installed so as to be able to move forward and backward in the moving region 11e by the operation of the fixing lever 30 .

In addition, the pressing portion 42 has a front contact surface having a shape symmetrical with the outer peripheral support wall 15, that is, an arc shape, so that it can be closely fixed to the outer peripheral surface of the annular part P, and the outer peripheral surface of the annular part P when fixed It is preferable that an elastic material such as rubber is applied to prevent damage to the surface.

On the other hand, the fixed lever 30 has a lever end 32 connected to the lever handle 31 rotatably installed in the casing 34 , wherein the lever end 32 is attached to the base plate 10 by the bracket 37 . Installation is carried out in a fixed state.

Referring to FIG. 6 , the fixing lever 30 is provided in a form in which the lever end 32 provided with the lever handle 31 , the connecting end 32 , the link end 38 and the connecting end 35 are connected in a line. . Specifically, the lever end 32 is installed so as to be able to pivot at a predetermined angle in the vertical direction within the casing 34 with the pivot shaft 32a as a starting point. In addition, a stopper 33 is formed to protrude from the end of the lever end 32 . This stopper 33 interferes with the support jaw 34e of the casing 34 . That is, when the lever handle 31 is rotated in the vertical direction, the stopper 33 comes into contact with the support jaw 34e at a predetermined angle or more, and serves to limit the rotation of the lever handle 31 by more than a predetermined angle. This is to solve the problem that the lever handle 31 is rotated by more than a certain angle, which causes the failure of the fixing performance of the pressing part 42 or the load is generated on the connecting parts.

On the other hand, the lever end 32 is installed so as to be pivotable in a right angle direction from the casing 34 with the pivot shaft 32a as a starting point, and the end of the lever end 32 is a link end 38 via the link shaft 32b. This is directly connected In addition, the connecting end 35 is connected to the end of the link end 38 via the connecting shaft 34a.

That is, when the lever handle 31 is lifted from the casing 34 at a right angle and turned, the lever end 32 is rotated with the pivot shaft 32a as a starting point, and the link end 38 connected to the lever end 32 is It is pulled inward, and the connecting end 35 connected to the link end 38 moves in a straight direction.

By this operation, the pressing part 42 connected to the end of the connecting end 35 is moved in a linear direction, and in some cases, the annular part P is moved to closely contact the outer peripheral support wall 15 side, or the outer peripheral support It serves to return the annular part P in a state in close contact with the wall 15 back to its original state (adhesion release state).

That is, FIG. 2A shows the state in which the annular part P is in close contact with the pressing part 42 and is fixed, and FIG. 2B shows the state in which the adhesive state of the pressing part 42 in the annular part P is released.

Specifically, the state for mounting the annular part P on the jig is a state in which the lever handle 31 is lifted in the vertical direction as shown in FIG. 2B . In this state, as shown in Fig. 4b, the lever end 32 is lifted and the end of the lever end 32 is pulled from the pivot shaft 32a as a starting point, and the link end connected to the end of the lever end 32 is operated. (38) and the connecting end (35) is moved inward. Accordingly, the pressing portion 42 fixed to the tip of the connecting end 35 is in a state inside the pressing cover 41 . Accordingly, it is possible to prevent any interference from occurring when the annular part P is seated on the tip seating portion 16 of the base plate 10, and the annular part P can be conveniently seated on the base plate 10. .

Conversely, in a state in which the annular part P is seated on the center seating portion 16, the operator lowers the lever handle 31 in the horizontal direction, which is the initial state. Accordingly, the lever end 32 end advances the link end 38 and the connecting end 35 forward as shown in FIG. 6 . Accordingly, the pressing portion 42 mounted on the tip of the connecting end 35 is brought into close contact with the annular component P, and the annular component P is fixed to the external support wall 15 side in a pressed state.

As such, the present invention allows the operator to lift the lever handle 31 in the vertical direction or to lower the lever handle 31 in the horizontal direction so that the pressing part 42 closely fixes the annular component P or facilitates the mounting of the annular component P can do it In addition, the outer circumferential support wall 15 is made in an arc shape, and a pair of protrusions P1 and P2 are formed on the outer circumferential surface of the annular part P. It is possible to align the protrusions P1 or P2 of the annular part P to ensure uniform work performance (polishing performance).

As described above, according to the present invention, grinding can be performed by simply fixing in a state in close contact with the outer circumferential support wall 15 by the fixing lever 30 installed on the base plate 10, thereby providing a firm fixing force for the annular component (P). It prevents suction or damage to the exterior of parts, and enables quick fixation and removal.

In the above, the present invention has been illustrated and described with respect to specific embodiments, but the present invention is not limited to the above-described embodiments, and those of ordinary skill in the art to which the present invention pertains will The invention may be implemented with various changes without departing from the spirit of the invention.

10: base plate
11: Circumference seating part
11e: movement area
12a, 12b: installer
15: outer peripheral support wall
16: center seat part
17: guide pillar part
31: lever handle
32: lever stage
33: stopper
34: casing
35: connecting end
37: bracket
41: pressure cover
42: pressurizing part

Claims (5)

A jig assembly for annular parts that is applied to grind a part of annular parts having an inclined surface formed on an outer circumferential surface,
a base plate having an arc-shaped outer circumferential support wall so that a portion of the outer circumferential surface of the annular part is in close contact with a center seating portion protruding at a predetermined height upward so that the inner circumferential surface of the annular part is in close contact; and
It is installed on the upper surface of the base plate, and includes a fixing lever for pressing the annular part to the outer peripheral support wall in a state in which the annular part is seated in the center seating part,
The fixing lever is a pressing part made of an elastic material so as to be in close contact with the inclined outer circumferential surface of the annular part, a plurality of guide pillar parts are formed to protrude from the upper surface of the base plate, and a moving region in which the pressing part is moved in a linear direction therebetween A pressing cover having the formed pressure cover, and a connecting end connected to the pressing unit, and a lever handle for moving the connecting end forward and backward,
A casing is mounted on the upper surface of the base plate, a lever end is connected to one side of the lever handle, and the lever end is rotatably installed in the casing with a pivoting axis as a starting point, and a link at the end of the lever end A link end is connected through an axis, and the link end is connected to the connecting end through a connecting axis,
When the lever handle is rotated in the horizontal direction based on the pivot axis, the connecting end is moved toward the outer peripheral support wall by the link end, and the pressing part is maintained in close contact with the inclined outer peripheral surface of the annular part,
When the lever handle is rotated in the vertical direction from the pivot axis, the connecting end is moved away from the outer circumferential support wall by the link end, so that the pressing part is in close contact with the inclined outer circumferential surface of the annular part. A jig assembly for annular parts, characterized in that. According to claim 1,
A plurality of protrusions are formed on the outer circumferential surface of the annular part,
The plurality of protrusions are annular component jig assembly, characterized in that the annular component is seated in the center seating portion in a state in close contact with either side of both ends of the outer circumferential support wall. According to claim 1,
The jig assembly for an annular component, characterized in that the pressing portion is made in a shape symmetrical to the outer circumferential support wall so as to be in close contact with the outer circumferential surface of the annular component. delete delete

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