JPH11843A - Freezing chuck method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a freezing chuck method and device with excellent durability by dissolving difficulties of possible breakage due to impact, for example, when jewels are engraved, or due to such as stress of thermal expansion and contraction in each portion, when a water cooled plate is used, in the freezing chuck method. SOLUTION: For this freezing chuck device, a work table 6 is arranged in a case 2 via a support 5 and plural thermo-modules 7 are fixed on the side periphery face of the work table 6. The thermo-modules 7 are yielded against the peripheral face of the work table 6 via an elastic mounted material 9 arranged outside. In chucking a work to the chuck face of the freezing chuck device, a moisture fiber inclusion is interposed between the work and the metal face of the device for freezing chuck. In chucking the work to the chuck face of the freezing chuck device with the icing of water, water mixed with additives is iced for freezing chuck.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for refrigeration and, more particularly, to a method and an apparatus for refrigeration with excellent durability.

[0002]

2. Description of the Related Art Conventionally, there has been known a method and an apparatus for cooling a work table by using a thermoelectric cooling element having a Peltier effect and fixing the work to the work table by freezing.

[0003]

SUMMARY OF THE INVENTION The above-mentioned conventional method and apparatus for freezing have the following disadvantages.
That is, for example, when engraving a jewelry, it is processed by hitting a chisel with a hammer. Since the impact force is transmitted to the thermo module via the work table, the thermo module is broken. Further, in the case where a water-cooled plate is used, there is a disadvantage that the thermoelectric cooling element is broken by the stress of thermal expansion and contraction at each part.
When fixing a work to a work table via a jig, it is difficult for the work to contact the work table surface and damage the surface.
In addition, there is a problem that the work and the jig move because the ice in the jig is broken by an impact during processing. SUMMARY OF THE INVENTION The present invention has been developed to solve these difficulties and to provide a frozen chuck method and apparatus having excellent durability.

[0004]

The present invention employs the following technical means to solve the above-mentioned problems. The thermo-module here refers to an electronic cooler that can cool a single side by applying a direct current to cover a plurality of thermal elements having a Peltier effect with a jacket made of ceramic or the like. The work table is a metal cube that fixes the work by freezing water on the upper surface. The term “fiber inclusions” refers to materials that are soft and easy to contain water, such as gauze, nonwoven fabric, and paper. Additives are copper used to reduce the freezing time or to prevent ice breakage. Aluminum. carbon. Mineral powder such as ceramics, wires, fragments, plants.
Refers to fibers, powders, pieces, and chemical agents of animals and the like. The specific configuration of the invention is as follows.

[0005] A refrigerating chuck device in which a work table is disposed in a case body via a support, and a plurality of thermo modules are fixed to a side peripheral surface of the work table.

[0006] A refrigeration chuck device in which the thermo module is resiliently pressed against a peripheral surface of a work table via an elastic mounting member disposed outside.

The case body has a spherical bottom surface,
A refrigeration check device rotatably arranged on a seat.

[0008] A refrigerating chuck device in which a heat insulating material is packed between the support of the work table and the case body.

[0009] A refrigerating chuck device in which two or more jig setting reference pin holes are formed on the upper surface of the work table.

[0010] A refrigeration chuck device in which a fixing screw hole is formed on the exposed surface of the work table, and the object to be fixed is tightly fixed by screwing.

A refrigeration chuck device in which a work table is fixed via a support in a hemispherical cross-section case body, and a plurality of thermo modules are mounted on the lower surface of the work table with their own water-cooling plates and mounting members arranged on the outside. .

[0012] A freezing chuck method for chucking a workpiece on a chuck surface of a freezing chuck device by interposing a water-containing fiber inclusion between the workpiece and the work table.

[0013] A freezing check method in which, when a work is chucked to the check surface of a freezing check device by freezing water, the mixed water is filled with freezing water and frozen.

In chucking the soft work on the chuck surface of the freezing chuck device, a container-like jig is fixed on a work table, and the soft work and water are poured into the container-like jig to freeze the freezing and freeze. Frozen check method.

[0015]

According to the present invention constructed as described above, the following operations are provided. For example, when polishing a jewel, if the thermo module is activated by placing the jewel on the water drop that has fallen on the top of the work table, the water drops on the top of the work table freeze and fix the jewel on the work table, making it easy to use. Can be polished. When a chisel is hit for engraving, the impact force is transmitted to the work table, but since the thermo module is mounted on the side peripheral surface of the work table, the impact force does not break the ceramic jacket of the thermo module .
Further, since the thermo module is mounted so as to be resiliently pressed by the elastic mounting member, the impact force is buffered, and expansion and contraction by the heat removal water cooling plate disposed between the thermo module and the elastic mounting member is reduced. Even if stress occurs, the elastic mounting member absorbs the difference in expansion and contraction between the inside and the outside, so that the ceramic jacket of the thermo module does not break. In particular, when one water cooling plate is used in common for a plurality of thermo modules, the water cooling plate undulates due to a large temperature difference caused locally and the thermo module is damaged, but the water cooling plate unique to each thermo module is used. These accidents will be resolved when the system is installed. In the case where the bottom surface of the case body is formed in a spherical shape and is rotatable on the seat base, the position of the work on the upper surface of the work table can be freely adjusted by rotating the case body. When the reference pin hole is formed on the upper surface of the work table, it can be always adjusted to the reference position when the jig is replaced. In the case where the fixing screw hole is formed on the upper surface of the work table, the auxiliary table and the jig can be closely fixed so that heat conduction is sufficient. It is difficult to fix the unstable work on the work table even if it is fixed on the work table by freezing.However, if the work is frozen on the work table via the water-containing fiber inclusion, stable fixing can be performed. If an unstable work and water are put into a jig and frozen, a stable fixation can be achieved. Further, when a metal work or the like is placed via a fiber inclusion, it does not directly contact the work table, so that the work table surface is not damaged. When a ring-shaped jig is placed on a work table, water and the work are put into the work table, and the work is frozen and chucked, the work may be subjected to a processing impact and the ice may be broken to prevent chucking. In this regard, if the additive is mixed with water, the ice is less likely to break, and the freezing time can be reduced.

[0016]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the front of the refrigeration chuck device. The case body 2 of the refrigeration check device 1 is arranged on a ring-shaped seat 3 made of an elastic material such as synthetic rubber and formed in a spherical shape with a bottom in the shape of a pot bottom. A support 5 is fixed to the center of the case body 2 via a heat insulating material 4, and a work table 6 made of a non-ferrous metal cube is disposed above the support 5. Thermo modules 7, 7 are mounted on side peripheral surfaces of the work table 6 (four sides in the case of a square) with a water cooling plate 8 and an elastic mounting material 9 superposed on the outer surfaces thereof, and mounted with stop bolts 10. The water cooling plate 8 is partitioned by a plurality of partition walls with the interior being hollow, and a water cooling pipe 8A extending from an external cooler is connected to circulate cooling water. In addition to using a plate made of an elastic material such as synthetic rubber,
When a hard plate is used, the hole 9A for the locking bolt 10
An annular elastic mounting member (not shown) may be fitted to the boss. The heat insulating material 4 may be made of any material. For example, the support 5 can be fixed using rosin to utilize the heat insulating effect. In the figure, reference numeral 11 denotes an electric cord for connecting the thermo-module 7 to an external controller;
Is a cover of the case body 2.

According to the present invention having the above structure, the work table 6 can be cooled to, for example, 0.degree. C. to minus 50.degree. Therefore, when the work is placed on the work table 6 and the water droplet is lowered, the work freezes and the work can be fixed on the work table 6 by freezing. Even if the work is engraved with a chisel to engrave the work, the thermo module 7 is disposed on the side surface of the work table 6 so that the thermo module 7 is not directly subjected to the striking force and the thermo module 7 may be damaged. Absent. Further, since the thermo module 7 is disposed on the side surface of the work table 6, even if the processing surface of the work table 6 is narrow, a plurality of thermo modules 7 And heat exchange is speeded up. Water cooling plate 8 is thermo module 7
Is used to cool the heat radiated by the heat exchange. When the expansion and contraction stress due to the heat of the thermomodule 7 is generated, the thermomodule 7 is fixed with the set screw 10.
However, the elastic mounting material 9 absorbs its expansion and contraction. Since the bottom of the case body 2 is formed in a spherical shape like a bottom of the shuttle, the case body 2 can be rotated on the seat 3 and the position of the work can be freely adjusted during processing.

FIG. 2 is an enlarged front view of a main part of the work table 6 of the frozen chuck device 1 according to the second embodiment. The same members as those in the previous example are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, reference pin holes 13 are provided on the upper surface of the work table 6.
13 is formed. Reference numeral 14 denotes an annular jig. Pins 14A, 14A are provided on the lower surface of the annular jig 14.
Is protruding. That is, since the jig 14 is changed depending on the size, shape, material, etc. of the work, the reference pin hole 1
Just by fitting the pins 14A, 14A of the jig 14 to the pins 3, 13, the positioning can be easily performed at the reference position.
Also, when a conventional jig is placed on the work table 6 and the work and water are put therein and frozen, the ice in the jig may be broken and the jig may move when the work is processed. In the embodiment, since the pins 14A, 14A are fitted into the reference pin holes 13, 13, the fear is eliminated.

When a work having a complicated shape is placed on the work base 6, there is a problem that the work is unstable and the icing fixing force is weak. Further, when the work is placed, the work table 6 is damaged, and there is a difficulty that the flat surface is damaged. Therefore, as shown in FIG. 3, an unstable work W is formed when a water-containing fiber inclusion 15 such as gauze is arranged on the work table 6 and the work W is placed thereon and frozen.
Can be stably mounted and fixed.
Will not damage. Furthermore, water does not flow when melting ice.

When ordinary water is put into the annular jig 14 to freeze it, it takes a long time to freeze. Further, when a shock is applied to the work W, the ice is easily broken. Therefore, when the additive is mixed with water, the time until freezing can be reduced. For example, if the thermal conductivity is 64
When 0 times copper powder is mixed in, the ice can be frozen earlier, and the time can be reduced to at least half or less depending on the mixing amount. Further, it was confirmed that even when the work W was given an impact, only the corners of the small portion of the ice that had been subjected to the impact were chipped, and the whole was hardly broken. In the case where the heat insulating material 4 is interposed between the case body 2 and the support body 5, the heat of the case body 2 is not taken by the work table 6, and the case body 2 is not cooled by the work table 6. .

FIG. 4 is an enlarged front view of a main part of the work table 6 of the frozen chuck device 1 according to the third embodiment. The same members as those in the previous example are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, fixing screw holes 16 are provided on the upper surface of the work table 6.
16 is formed. Reference numeral 17 denotes a container-like jig, which is fixed to the work table 6 by screwing screws 17A, 17A into fixing screw holes 16, 16. Thereby, the container jig 17 is closely fixed to the work table 6, and the heat conduction is completely performed. However, the work W shown here is hollowed out in the lower part as shown in the figure, and the thickness of the side wall is thin, so that it is difficult to perform a freezing check by a normal method, and there is a difficulty that the work W moves with a grunt during processing. However, if the work W and the water are put into the container jig 17 and frozen as in this embodiment, the work W is completely frozen since the work W also contains ice. Can be. Similarly, an elastic work such as rubber can be fixed.

FIG. 5 is an enlarged front view of the main part of the work table 6 of the frozen chuck device 1 showing the fourth embodiment. The same members as those in the previous example are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, fixing screw holes 16,
16 is formed. Reference numeral 18 denotes an auxiliary table, which is fixed to the work table 6 by screwing screws 18A, 18A into fixing screw holes 16, 16. This is an auxiliary table 1 for widening the work table 6 when the area is small.
8, the reference pin hole 13,
13 and fixing screw holes 16, 16 can be formed.

FIG. 6 is a front view of a frozen chuck device 1 according to a fifth embodiment. The same members as those in the previous example are denoted by the same reference numerals, and description thereof will be omitted. In this embodiment, a plurality of thermo modules 7, 7 are arranged below a work table 6 with a unique water cooling plate 8 and a mounting member 9, respectively.
That is, when one water cooling plate 8 is used in common for a plurality of thermo modules 7, 7, the water cooling plate 8 having a large area may be twisted due to a partial temperature difference, and the thermo modules 7, 7 may be damaged. As can be seen, the provision of a unique water cooling plate 8 for each of the plurality of thermo modules 7, 7 as in this embodiment prevents such troubles. In this embodiment, the support 5 is
Since the elastic member 19 is interposed between the upper and lower parts 5A and B5, the impact on the work table is reduced.

[0024]

The present invention configured as described above has the following excellent effects.

A. Since a plurality of thermo modules are arranged on the side peripheral surface of the work table, there is an effect that the thermo modules are not broken by an impact on the work.

B. Conventionally, only one thermo module can be installed on the lower surface of the work table, so only one thermo module can be installed.However, since multiple thermo modules are installed on the side peripheral surface, the work table can be efficiently used. There is an effect that it can be cooled well.

C. Since the water cooling plate and the elastic mounting member are arranged and fixed outside the thermo module, the stress of thermal expansion and contraction can be absorbed by the elastic mounting member, and there is an effect that the thermo module can be prevented from being damaged.

D. In the case where the reference pin hole is formed in the work table, there is an effect that accurate positioning can be performed when the jig is replaced. In addition, even if the ice for fixing the jig to the worktable is broken, the pins of the jig are fitted in the reference pin holes, so that there is an effect that no displacement occurs.

E. When the work table is formed with fixing screw holes, the auxiliary table, container jig and other objects can be fixed closely.When using the container jig, it is difficult to fix the work There is an effect that can be fixed.

F. In the case where a unique water cooling plate is attached to each of a plurality of thermo modules, the water cooling plate is unlikely to swell due to a temperature difference, and has an effect of not damaging the thermo modules.

G. In the case where a heat insulating material is interposed between the case body and the support, there is an effect that heat exchange between the case body and the work table does not occur.

H. In the method of freezing a work on a worktable through a water-containing fiber inclusion, an unstable work can be easily frozen and fixed to the worktable, and no damage occurs due to contact between the work and the worktable. effective.

I. The method of mixing the additive in water for freezing and fixing the work to the work table has the effect of shortening the freezing time, and the ice that has been chucked is broken even if there is an impact on the work. It has the effect of being difficult.

[Brief description of the drawings]

FIG. 1 is a front view of a refrigeration check apparatus according to a first embodiment.

FIG. 2 is a front view of a main part of a work table of a frozen check device according to a second embodiment.

FIG. 3 is a front view of a main part of a work table showing a frozen check.

FIG. 4 is a front view of a main part of a work table of a frozen check apparatus according to a third embodiment.

FIG. 5 is a front view of a main part of a work table of a freezing chuck device according to a fourth embodiment.

FIG. 6 is a front view of a refrigeration check apparatus according to a fifth embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 refrigeration check device 2 case body 3 seat 4 heat insulating material 5 support 6 work table 7 thermo module 8 water cooling plate 8A water cooling tube 9 elastic mounting material 9A hole 10 stop bolt 11 electric cord 12 cover 13 reference pin hole 14 seat 15 Fiber inclusion 16 Screw hole 17 Container jig 17A Screw 18 Auxiliary stand 18A Screw 19 Elastic material W Work

Claims (10)

[Claims] 1. A refrigerating chuck device wherein a work table is disposed in a case body via a support, and a plurality of thermo modules are fixed to a side peripheral surface of the work table. 2. The refrigeration chuck device according to claim 1, wherein the thermo module is resiliently pressed against a side peripheral surface of the work table via an elastic mounting member disposed outside. 3. The refrigeration chuck device according to claim 1, wherein the bottom of the case body is formed in a spherical shape, and the case body is rotatably disposed on a seat base. 4. A heat insulating material is packed between the support of the work table and the case body.
3. The refrigeration chuck device according to any one of 3. 5. The refrigerating machine according to claim 1, wherein two or more jig setting reference pin holes are formed on an upper surface of the work table. Check device. 6. A refrigerating machine according to claim 1, wherein a fixing screw hole is formed in an exposed surface of said work table, and said object is fixed closely by screwing. Check device. 7. A work table is fixed via a support in a case body having a hemispherical cross section, and a plurality of thermo modules are mounted on a lower surface of the work table with a unique water-cooling plate and a mounting member arranged on the outside. A refrigeration chuck device characterized by the above-mentioned. 8. A refrigeration chuck method, wherein a chuck of a work is chucked to a chill surface of a refrigeration chuck device, wherein a hydrated fiber inclusion is interposed between the work and the work table to perform a refrigeration check. 9. A method of freezing and chucking, wherein, upon chucking the freezing surface of the freezing device by freezing water, freezing is performed by freezing water mixed with an additive. 10. A chuck for a soft work on a chucking surface of a freezing chuck device, a container-like jig is fixed on a work table, and the soft work and water are injected into the container-like jig to freeze and freeze. A frozen hacking method comprising hacking.