TWI389768B - Rolling fixture - Google Patents

Description

Rounding fixture

The invention relates to a rounding jig, in particular to a rounding jig capable of simultaneously processing different sizes.

In the field of optics, it is usually necessary to make optical elements such as lenses, filters, and the like of a camera into a circular shape. However, the workpieces that are initially cut during industrial processing are generally square, so the square workpiece needs to be rounded to have rounded edges to meet the needs of optical applications.

Cylindrical grinding machines are widely used to grind workpieces of various shapes into a circular shape (see High Efficiency Deep Grinding of a Low Alloy Steel with Plated CBN Wheels), CIRP Annals-Manufacturing Technology, pp. 241-244, Volume 51, Issue 1,2002). The cylindrical grinding machine grinds the workpiece fixed by the fixing device with a high-speed rotating grinding wheel to complete the rounding treatment of the workpiece.

As shown in FIG. 1 and FIG. 2, the fixing device generally includes a first jig 10 and a second jig 20, and the first jig 10 and the second jig 20 respectively have a receiving groove 12 and 22. The accommodating groove 12 has a V-shaped cross-sectional shape for accommodating the prismatic workpiece 30 to be rounded. The prismatic workpiece 30 can be formed by bonding a plurality of square-shaped workpieces 32 via a glue such as ultraviolet glue. The accommodating groove 22 has a semicircular cross-sectional shape, and the semicircular shape is matched with the semicircular shape of the final desired circular product.

In operation, the prismatic workpiece 30 is usually fixed in the accommodating groove 12 of the first jig 10, and the prismatic workpiece 30 is ground by a grinding wheel. Since the circumferential surface of the grinding wheel is usually provided with a grinding groove, the grinding is performed. The cross-sectional shape of the groove is semi-circular, and the size of the semi-circle and the final desired round The semicircular shape of the product also coincides with each other. Therefore, the portion of the prismatic workpiece 30 exposed to the receiving groove 12 can be ground into a half cylinder 34, that is, one side of the prismatic workpiece 30 is rounded; The spheroidal prism workpiece 30 is taken out from the first jig 10, and the semi-cylindrical portion 34 is partially fixed in the accommodating groove 22 of the second jig 20, and the prism workpiece 30 is polished by a grinding wheel to expose the accommodating portion. Part of the groove 22, the prism body workpiece 30 is ground into a complete cylinder, and finally the ground cylinder is removed and disassembled to obtain a desired round product.

However, the combination fixture can only grind a prismatic workpiece 30 of a certain size. If it is necessary to grind a prismatic workpiece 30 of a different size, the second fixture 20 needs to be replaced.

In view of this, it is necessary to provide a rounding jig that can process workpieces of different sizes.

A rounding jig includes at least a first jig, a second jig, and a flipping assembly, the first jig having a first curved structure, the second jig having a second curved structure, the first curved structure And the second curved structure is formed into a first accommodating groove, and an adjusting screw is disposed between the first jig and the second jig, and the adjusting screw adjusts a distance between the first jig and the second jig to change the first The movement direction of the adjusting screw is the same as the moving direction of the first jig and the second jig, and the turning component comprises a first component, a second component, a third component and a nut, the first The first component, the second component and the third component are sequentially connected to form a U-shaped space for accommodating the first jig and the second jig, the second jig having two oppositely disposed threaded holes, the first component and the first component A through hole is disposed at a corresponding position of the three components, and the nut is respectively threaded into the threaded hole through the through hole to rotate the first jig and the second jig in the U-shaped space.

Compared with the prior art, the rounding jig of the embodiment of the present invention adjusts the distance between the first jig and the second jig by adjusting the screw to change the accommodating space of the accommodating groove, so that the accommodating groove can accommodate different sizes. The workpiece, and thus the rounding fixture, can machine workpieces of different sizes.

10,110,310,410‧‧‧First fixture

12‧‧‧ accommodating slots

20,120,320,420‧‧‧second fixture

30‧‧‧Prismatic workpiece

32‧‧‧square sheet workpiece

34‧‧‧Semi-cylinder

100,300,400‧‧‧Rolling fixture

112, 312a, 312b‧‧‧ first curved structure

114,314‧‧‧First step hole

122‧‧‧ first hole

124‧‧‧second hole

126, 322a, 322b‧‧‧ second curved structure

128, 324a, 324b‧‧‧ third curved structure

130,330,430‧‧‧The third fixture

132, 332a, 332b‧‧‧ fourth curved structure

134,334‧‧‧second step hole

140‧‧‧First adjustment screw

150‧‧‧Second adjustment screw

160‧‧‧First accommodating slot

170‧‧‧Second accommodating slot

180‧‧‧First spring

190‧‧‧Second spring

142‧‧‧First Handheld Department

152‧‧‧ second hand department

426‧‧‧Threaded holes

442‧‧‧ first component

444‧‧‧second component

446‧‧‧ third component

448‧‧‧through hole

450‧‧‧ nuts

1 is a schematic view showing the state of use of a first jig of a prior art combination jig.

2 is a schematic view showing the state of use of a second jig of a prior art combination jig.

Fig. 3 is a perspective view showing the rounding jig of the first embodiment of the present invention.

Figure 4 is a schematic cross-sectional view taken along line IV-IV of Figure 3.

Fig. 5 is a schematic view showing the rounding jig of the second embodiment of the present invention.

Fig. 6 is a perspective view showing a rounding jig of a third embodiment of the present invention.

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in FIG. 3 and FIG. 4, it is a rounding jig 100 according to a first embodiment of the present invention. The rounding jig 100 includes a first jig 110, a second jig 120, a third jig 130, a first adjusting screw 140, a second adjusting screw 150, a first spring 180, and a second spring 190.

The first adjusting screw 140 is disposed between the first jig 110 and the second jig 120 to adjust the distance therebetween, and the second adjusting screw 150 is disposed between the second jig 120 and the third jig 130 to adjust two The distance between the people.

The first jig 110 has a first curved structure 112 and a first stepped hole 114.

The second jig 120 has two oppositely disposed first and second holes 122 and 124, a second curved structure 126, and a third curved structure 128. The first hole 122 is opposite to the first jig 110, and the second hole 124 is opposite to the third jig 130. One end of the first spring 180 is received in the first stepped hole 114, and the other end is received in the first hole 122.

The first adjustment screw 140 has a rotatable first hand portion 142 that is threadedly coupled to the first adjustment screw 140. The first adjusting screw 140 passes through the first step hole 114 and penetrates the first bullet The spring 180 extends into the first hole 122 to be fixed to the second jig 120.

When the first jig 110 and the second jig 120 are combined, the first curved structure 112 and the second curved structure 122 form the first receiving groove 160.

The third jig 130 has a fourth curved structure 132 and a second stepped hole 134. One end of the second spring 190 is received in the second stepped hole 134, and the other end is received in the second hole 124.

The second adjustment screw 150 has a rotatable second hand portion 152 that is threadedly coupled to the second adjustment screw 150. The second adjusting screw 150 passes through the second stepped hole 134 , penetrates the second spring 190 and extends into the second hole 124 to be fixed to the second jig 120 .

When the second jig 120 and the third jig 130 are combined, the third curved structure 128 and the fourth curved structure 132 constitute the second accommodating groove 170.

Rotating the first hand-held portion 142 clockwise, the first jig 110 is moved toward the second jig 120, so that the distance between the first jig 110 and the second jig 120 is reduced, and the first receiving groove 160 is The accommodating space is reduced. At this time, the first spring 180 is in a compressed state, and the distance between the first jig 110 and the second jig 120 is fixed by the first spring 180 and the first hand portion 142, and can be fixed. Size workpiece processing.

The first hand-held portion 142 is rotated counterclockwise, and the first jig 110 is moved away from the second jig 120 by the first spring 180, so that the distance between the first jig 110 and the second jig 120 is increased. Thereby, the accommodation space of the first accommodating groove 160 is increased.

The distance between the first jig 110 and the second jig 120 is different, so that the accommodating space of the first accommodating groove 160 is changed, so that the spheron jig 100 can accommodate workpieces of different sizes.

Similarly, rotating the second hand-held portion 152 can change the distance between the second jig 120 and the third jig 130, and the second jig 120 and the third treatment under the action of the second spring 190 and the second hand portion 152 Between 130 The distance remains the same.

The distance between the first jig 110 and the second jig 120 and the distance between the second jig 120 and the third jig 130 can be adjusted by the first adjusting screw 140 and the second adjusting screw 150, so that the rounding jig 100 can accommodate different Dimensions of the workpiece. When it is required to round the workpieces of different sizes, it is not necessary to replace the jig, and the first adjusting screw 140 or/and the second adjusting screw 150 are adjusted to change the size of the first receiving groove 160 or/and the second receiving groove 170.

Of course, the rounding fixture 100 may also include only the first jig 110 and the second jig 120 or only the second jig 1120 and the third jig 130. The first jig 110 and the third jig 130 are respectively provided with through holes instead of the first step holes 114 and the second step holes 134.

As shown in FIG. 5, it is a rounding jig 300 provided by the second embodiment of the present invention. The rounding jig 300 includes a first jig 310, a second jig 320, a third jig 330, a first adjusting screw 140, a second adjusting screw 150, a first spring 180, and a second spring 190.

The first jig 310, the second jig 320, and the third jig 330 are different from the first jig 110, the second jig 120, and the third jig 130 in the first embodiment in that: the first jig 310 has opposite first curved structures 312a and 312b, second jig 320 has opposite second curved structures 322a and 322b, third curved structures 324a and 324b, and third jig 330 has a relative arrangement The four curved structures 332a and 332b are the same in that the first jig 310 has a first stepped hole 314 and the third jig 330 has a second stepped hole 334.

The first adjusting screw 140 passes through the first stepped hole 314 and is directly fixed to the second jig 320 through the first spring 180. The second adjusting screw 150 passes through the second stepped hole 334 and is fixed directly to the second spring 190. The second ruler is on 320.

As shown in FIG. 6, it is a rounding jig 400 provided by a third embodiment of the present invention. The rounding jig 400 includes a first jig 410, a second jig 420, a third jig 430, and a flipping assembly 440.

The rounding jig 400 differs from the rounding jig 300 in that a flipping assembly 440 is added to the rounding jig 300.

The first jig 410 and the third jig 430 have the same structure as the first jig 310 and the third jig 330 of the second embodiment. The structure of the second jig 420 and the second jig 320 are substantially the same, except that the two ends of the second jig 420 are correspondingly provided with screw holes 426.

The flip assembly 440 includes a plate-shaped first component 442, a second component 444, a third component 446, and two nuts 450. The first component 442, the second component 444, and the third component 446 are sequentially connected to form a U-shaped housing space. The combination of the first jig 410, the second jig 420 and the third jig 430 is accommodated in the U-shaped accommodating space and rotatable in the accommodating space.

A through hole 448 is respectively disposed at a corresponding position of the first component 442 and the third component 446. The nut 450 is threaded into the threaded bore 426 through the through hole 448.

The distance between the connection of the two through holes 448 to the second component 344 should be at least greater than the distance from the threaded hole 426 to the edge of the first jig 410 when the first jig 410 is in close contact with the second jig 420. When the nut 450 is rotated, the first jig 410, the second jig 420, and the third jig 430 can be turned over, thereby saving processing time.

By adjusting the first adjusting screw 140 and the second adjusting screw 150, the rounding jig 400 can process workpieces of different sizes. When the machining is completed, turning the nut 450 can reverse the rounding jig 400, thereby shortening the processing time.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

100‧‧‧Rolling fixture

110‧‧‧First fixture

112‧‧‧First curved structure

114‧‧‧First step hole

120‧‧‧Second fixture

122‧‧‧ first hole

124‧‧‧second hole

126‧‧‧Second curved structure

128‧‧‧The third curved structure

130‧‧‧The third fixture

132‧‧‧Fourth curved structure

134‧‧‧Second step hole

140‧‧‧First adjustment screw

142‧‧‧First Handheld Department

150‧‧‧Second adjustment screw

152‧‧‧ second hand department

180‧‧‧First spring

190‧‧‧Second spring

Claims (7)

A rounding jig includes a first jig and a second jig, the first jig having a first curved structure, the second jig having a second curved structure, the improvement being: the first curved structure And the second curved structure is formed into a first accommodating groove, and an adjusting screw is disposed between the first jig and the second jig, and the adjusting screw adjusts a distance between the first jig and the second jig to change the first The movement direction of the adjusting screw is the same as the moving direction of the first jig and the second jig, and the rounding jig further includes a turning component, the turning component comprising the first component and the second component a first component, a second component, and a third component, the first component, the second component, and the third component are sequentially connected to form a U-shaped space for accommodating the first jig and the second jig, and the second jig has two opposite settings a threaded hole, the first component and the third component are correspondingly disposed with a through hole, and the nut is respectively inserted into the threaded hole through the through hole to make the first jig and the second jig in the U-shaped space Rotate inside. The rounding jig according to claim 1, wherein the rounding jig further comprises a spring located between the first jig and the second jig, the adjusting screw penetrating the spring. The rounding jig according to claim 2, wherein the first jig has a stepped hole, and the adjusting screw passes through the stepped hole and extends through the spring to be fixed on the second jig. The spheroidal jig according to the third aspect of the invention, wherein: the second jig is provided with a receiving hole corresponding to the stepped hole, and the two ends of the spring are respectively accommodated in the stepped hole and the receiving hole, The adjusting screw extends into the receiving hole to be fixed to the second jig. The rounding jig according to claim 2, wherein the first jig is provided with a through hole, and the adjusting screw passes through the through hole and is fixed to the second jig through the spring. The rounding jig according to claim 5, wherein: the second jig corresponds to the through hole An accommodating hole is disposed, and one end of the spring is received in the accommodating hole, and the adjusting screw extends into the accommodating hole to be fixed on the second jig. The rounding jig according to any one of claims 1 to 6, wherein the rounding jig further comprises a third jig, and an adjusting screw is disposed between the second jig and the third jig The third jig has a third arc structure, and the second arc structure and the third arc structure form a second accommodating groove, and the adjusting screw adjusts the distance between the second jig and the third jig Changing the size of the second accommodating groove.