CN107214563B - Indexing device of excircle equal-division groove of high-temperature gas cooled reactor heat exchange unit inner cylinder assembly - Google Patents
Indexing device of excircle equal-division groove of high-temperature gas cooled reactor heat exchange unit inner cylinder assembly Download PDFInfo
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- CN107214563B CN107214563B CN201710616102.XA CN201710616102A CN107214563B CN 107214563 B CN107214563 B CN 107214563B CN 201710616102 A CN201710616102 A CN 201710616102A CN 107214563 B CN107214563 B CN 107214563B
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- groove
- heat exchange
- exchange unit
- temperature gas
- excircle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/02—Indexing equipment
- B23Q16/08—Indexing equipment having means for clamping the relatively movable parts together in the indexed position
- B23Q16/10—Rotary indexing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses an indexing device of an excircle equal dividing groove of an inner cylinder component of a high-temperature gas cooled reactor heat exchange unit, which is arranged on a machine tool table and comprises an equal-height supporting mechanism and a pressing mechanism, wherein the equal-height supporting mechanism is arranged on the machine tool table and used for supporting and placing the inner cylinder component, and the pressing mechanism is connected to the equal-height supporting mechanism and used for pressing the inner cylinder component. The invention can ensure the processing precision when the inner cylinder component is grooved and solves the problem of indexing grooving of the inner cylinder component.
Description
Technical Field
The invention relates to a high-temperature gas cooled reactor, in particular to an indexing device of an excircle equipartition groove of an inner cylinder component of a heat exchange unit of the high-temperature gas cooled reactor.
Background
The high temperature gas cooled reactor belongs to the fourth generation nuclear reactor technology, the heat exchange unit is the core component of the high temperature gas cooled reactor nuclear power station, the inner cylinder component is the key supporting component in the heat exchange unit, the main external dimension of the inner cylinder component is: the outer diameter is 279.4-279.8 mm, the length is 8815mm, and the material is 6625 high-temperature nickel base alloy. The excircle of the inner barrel component is provided with trisection grooves with the width of 10-10.1 mm and the depth of 3-3.2 mm, the radial angle of the three grooves is required to be 120 degrees +/-20 degrees, and the straightness is required to be 0.5mm, so the requirement on the size precision of parts is high, and the inner barrel component is a long and thin large-sized pipe and has high indexing grooving difficulty.
At present, the common processing method is as follows: placing the inner barrel assembly on a machine tool body, pressing the inner barrel assembly tightly from a bus on the inner barrel assembly by using a pressing plate, moving the pressing plate away when a machine tool cutter approaches to the pressing plate during slotting, leaving the inner barrel assembly after the slotting of the machine tool cutter is finished, pressing the inner barrel assembly tightly by using the pressing plate, and repeating the steps.
The method not only is difficult to ensure the processing precision when the inner cylinder component is grooved, but also has high requirements on operators, and has the risk of extremely high failure rate.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an indexing device for an excircle equal-division slot of an inner barrel assembly of a high-temperature gas-cooled reactor heat exchange unit, which can ensure the processing precision of the inner barrel assembly during slot opening and solve the problem of indexing slot opening of the inner barrel assembly.
In order to achieve the purpose, the invention adopts the following technical scheme:
the indexing device is arranged on a machine tool table top and comprises an equal-height supporting mechanism and a pressing mechanism, wherein the equal-height supporting mechanism is arranged on the machine tool table top and used for supporting and placing an inner cylinder assembly, and the pressing mechanism is connected to the equal-height supporting mechanism and used for pressing the inner cylinder assembly;
the equal-height supporting mechanism comprises a supporting block, a positioning groove is formed in the lower surface of the supporting block and used for being clamped on the table top of the machine tool, a V-shaped groove is formed in the upper surface of the supporting block, the tops of two ends of the V-shaped groove are respectively provided with a step structure, positioning connecting holes are formed in the table top above and the table top below the step structure, and a positioning key is connected to one side surface of the supporting block;
hold-down mechanism includes that the clamp plate turns round, connecting rod, briquetting and positioning screw, and the bottom that the clamp plate turned round links to each other with the location connecting hole that lies in the top mesa in the stair structure, and the clamp plate turns round again and links to each other with the lower extreme of connecting rod, and the upper end of connecting rod links to each other with the briquetting, and the briquetting is used for compressing tightly the inner tube subassembly, and the connecting rod is worn to establish by the upper end of positioning screw, and the lower extreme of positioning screw is fixed even in the location connecting hole that lies in the below mesa in the stair structure for fixed positioning hold-down mechanism.
The machine tool table surface is provided with a tool positioning key, and the positioning groove is clamped on the tool positioning key.
The pressing mechanisms are provided with a pair of pressing mechanisms which are respectively connected to the step structures at the tops of the two ends of the V-shaped groove.
The positioning key is also connected with a stop block, and the stop block is connected to one side surface of the supporting block through a fixing bolt.
The pressing plate rotating head is movably connected with the lower end of the connecting rod, and the upper end of the connecting rod is movably connected with the pressing block.
The movable connection is pin shaft connection.
The connecting rod is arranged to be in a C-shaped structure.
The pressing block is used for pressing the contact surface of the inner cylinder assembly to be V-shaped.
The upper end of the positioning screw rod is in spherical contact with the connecting rod.
The equal-height supporting mechanisms and the pressing mechanisms are provided with a plurality of equal-height supporting mechanisms and the number of the equal-height supporting mechanisms is matched with that of the pressing mechanisms.
In the technical scheme, the indexing device for the excircle equal dividing groove of the inner cylinder component of the high-temperature gas cooled reactor heat exchange unit provided by the invention also has the following beneficial effects:
1. the supporting blocks are clamped on the tool positioning keys on the table surface of the machine tool through the positioning grooves, so that the supporting blocks can be on the same straight line, and the requirement on the straightness of the inner cylinder assembly during processing is met;
2. the inner barrel component is positioned through the positioning key on the supporting block, so that the requirement of 120-degree radial indexing of the inner barrel component can be met;
3. the V-shaped surface of the pressing block is arranged, so that the contact area with the inner cylinder assembly is increased, and the clamping force line is communicated with the axis of the inner cylinder assembly, so that the inner cylinder assembly is prevented from being twisted due to stress;
4. the upper end of the positioning screw rod is in spherical contact with the connecting rod, so that the pressing mechanism can be prevented from being locked in the process of clamping the inner cylinder assembly or clamping the inner cylinder assembly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the contour support mechanism of the present invention;
FIG. 3 is a schematic view of the hold-down mechanism of the present invention;
fig. 4 is a state diagram of the present invention in use in the field.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1 to 4, the indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor provided by the present invention includes a plurality of equal-height supporting mechanisms 1 and pressing mechanisms 2, which are matched in number, wherein the equal-height supporting mechanisms 1 are installed on a machine tool table-board 3, a tool positioning key 301 is provided on the machine tool table-board 3, the equal-height supporting mechanisms 1 are used for supporting and placing the inner barrel assembly 4 to be processed with a groove, and the pressing mechanisms 2 are connected to the equal-height supporting mechanisms 1 and are used for pressing the upper portion of the inner barrel assembly 4.
Preferably, the equal-height supporting mechanism 1 comprises supporting blocks 101, positioning grooves 102 are formed in the same position of the lower surface of each supporting block 101, the positioning grooves 102 are used for being clamped on tool positioning keys 301 of a machine tool table top 3, when the supporting blocks 101 are installed on the machine tool table top 3, the supporting blocks 101 can be positioned between the positioning grooves 102 and the tool positioning keys 301 to be located on the same straight line on the machine tool table top 3, the straightness requirement during grooving and processing of the inner cylinder assembly 4 is guaranteed, a V-shaped groove 103 is formed in the upper surface of each supporting block 101, the tops of two ends of each V-shaped groove 103 are arranged in a step structure, positioning connecting holes 106 are formed in a table top 104 located above and a table top 105 located below in the step structure, a positioning key 107 is connected to one side surface of each supporting block 101, the positioning key 107 can be used for positioning the inner cylinder assembly 4 through the positioning key 107, a stop block 108 is further connected to the positioning key 107, and the stop block 108 is fixedly connected to one side surface of the supporting blocks 101 through fixing bolts, and movement of the positioning keys 107 can be prevented in the grooving processing process of the inner cylinder assembly 4.
Preferably, the pressing mechanism 2 includes a pressing plate rotating head 201, a connecting rod 202, a pressing block 203 and a positioning screw 204, the bottom of the pressing plate rotating head 201 is fixedly connected with the positioning connecting hole 106 of the upper table 104 in the step structure, the pressing plate rotating head 201 is movably connected with the lower end of the connecting rod 202, the upper end of the connecting rod 202 is also movably connected with the pressing block 203, the pressing block 203 is used for pressing the inner cylinder assembly 4, the contact surface between the pressing block 203 and the inner cylinder assembly 4 is arranged to be a V-shaped surface, the contact area between the pressing block 203 and the inner cylinder assembly 4 is increased, clamping is also more reliable, the connecting rod 202 penetrates through the upper end of the positioning screw 204, and the lower end of the positioning screw 204 is fixedly connected to the positioning connecting hole 106 of the lower table 105 in the step structure for fixedly positioning the whole pressing mechanism 2.
Preferably, the pressing mechanism 2 has a pair of pressing members respectively connected to the step structures at the top of the two ends of the V-shaped groove 103, and the pressing members are clamped from the left and right sides above the inner cylinder assembly 4 to prevent the inner cylinder assembly 4 from moving during grooving.
Preferably, the movable connection between the pressing plate rotating head 201 and the lower end of the connecting rod 202 and the movable connection between the upper end of the connecting rod 202 and the pressing block 203 are all connected by a pin shaft, so that the maintenance and the replacement are convenient.
Preferably, the connecting rod 202 is arranged to be C-shaped, so that when the pressing mechanism 2 is pressed onto the bus of the inner barrel assembly 4, the operation of the machine tool spindle is not affected, and the continuous machining of the machine tool is ensured.
Preferably, the upper end of the positioning screw 204 is in spherical contact with the connecting rod 202, so that the situation that the pressing mechanism 2 is locked and cannot clamp the inner barrel assembly 4 in the process of pressing the inner barrel assembly 4 can be prevented.
When the machine tool is used, a plurality of supporting blocks 101 are firstly clamped on a tool positioning key 301 of a machine tool table top 3, the supporting blocks 101 are ensured to be positioned on the same straight line, an inner cylinder component 4 is placed in a V-shaped groove 103, a left pressing mechanism 2 and a right pressing mechanism 2 tightly press the inner cylinder component 2 above the inner cylinder component 2, at the moment, the first groove 5 is machined, after the first groove 5 is machined, the pressing mechanism 2 is loosened, the inner cylinder component 2 is turned over, a positioning key 107 is just inserted into the first groove 5, a stop block 108 is screwed for fixing, the inner cylinder component 4 is tightly pressed by the pressing mechanism 2, the second groove 6 is machined, after the second groove 6 is machined, the pressing mechanism 2 is loosened, the inner cylinder component 2 is turned over, the positioning key 107 is inserted into the second groove 6, the stop block 108 is screwed for fixing, finally, the inner cylinder component 4 is tightly pressed by the pressing mechanism 2, and a third groove 7 is machined, and thus, three equal grooves on the outer circle of the inner cylinder component 4 are machined.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The indexing device for the excircle halving groove of the inner cylinder component of the heat exchange unit of the high-temperature gas cooled reactor is arranged on the table surface of a machine tool and is characterized by comprising an equal-height supporting mechanism and a pressing mechanism, wherein the equal-height supporting mechanism is arranged on the table surface of the machine tool and used for supporting and placing the inner cylinder component, and the pressing mechanism is connected to the equal-height supporting mechanism and used for pressing the inner cylinder component;
the equal-height supporting mechanism comprises a supporting block, a positioning groove is formed in the lower surface of the supporting block and used for being clamped on the table top of the machine tool, a V-shaped groove is formed in the upper surface of the supporting block, the tops of two ends of the V-shaped groove are respectively provided with a step structure, positioning connecting holes are formed in the table top above and the table top below the step structure, and a positioning key is connected to one side surface of the supporting block;
hold-down mechanism includes that the clamp plate turns round, connecting rod, briquetting and positioning screw, and the bottom that the clamp plate turned round links to each other with the location connecting hole that lies in the top mesa in the stair structure, and the clamp plate turns round again and links to each other with the lower extreme of connecting rod, and the upper end of connecting rod links to each other with the briquetting, and the briquetting is used for compressing tightly the inner tube subassembly, and the connecting rod is worn to establish by the upper end of positioning screw, and the lower extreme of positioning screw is fixed even in the location connecting hole that lies in the below mesa in the stair structure for fixed positioning hold-down mechanism.
2. The dividing apparatus of the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein a tool positioning key is arranged on the table surface of the machine tool, and the positioning groove is clamped on the tool positioning key.
3. The indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein the pressing mechanism has a pair of pressing mechanisms respectively connected to the step structures at the tops of the two ends of the V-shaped groove.
4. The indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein the positioning key is further connected with a stopper, and the stopper is connected to one side surface of the supporting block through a fixing bolt.
5. The indexing device for the excircle bisection groove of the high temperature gas cooled reactor heat exchange unit inner barrel assembly according to claim 1, wherein the pressure plate rotating head is movably connected with the lower end of the connecting rod, and the upper end of the connecting rod is movably connected with the pressure block.
6. The dividing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 5, wherein the movable connection is a pin connection.
7. The indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein the connecting rod is arranged in a C-shaped structure.
8. The indexing device for the excircle bisection groove of the inner barrel component of the heat exchange unit of the high temperature gas cooled reactor as claimed in claim 1, wherein the contact surface of the pressing block for pressing the inner barrel component is provided with a V-shaped surface.
9. The indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein the upper end of the positioning screw rod is in spherical contact with the connecting rod.
10. The indexing device for the excircle bisection groove of the heat exchange unit inner barrel assembly of the high temperature gas cooled reactor according to claim 1, wherein the number of the equal-height supporting mechanisms and the number of the pressing mechanisms are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616102.XA CN107214563B (en) | 2017-07-26 | 2017-07-26 | Indexing device of excircle equal-division groove of high-temperature gas cooled reactor heat exchange unit inner cylinder assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710616102.XA CN107214563B (en) | 2017-07-26 | 2017-07-26 | Indexing device of excircle equal-division groove of high-temperature gas cooled reactor heat exchange unit inner cylinder assembly |
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| Publication Number | Publication Date |
|---|---|
| CN107214563A CN107214563A (en) | 2017-09-29 |
| CN107214563B true CN107214563B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710616102.XA Active CN107214563B (en) | 2017-07-26 | 2017-07-26 | Indexing device of excircle equal-division groove of high-temperature gas cooled reactor heat exchange unit inner cylinder assembly |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078563A (en) * | 1980-06-20 | 1982-01-13 | Ferranti Ltd | Work Holding Fixture |
| CN101491876A (en) * | 2009-02-25 | 2009-07-29 | 沪东重机有限公司 | Clamper for processing multi-angle hole of large rotor shaft and processing method thereof |
| CN105855568A (en) * | 2016-06-02 | 2016-08-17 | 上海瑞纽机械股份有限公司 | High temperature gas cooled reactor heat transfer unit internal cylinder component outer circle finish turning system and finish turning method thereof |
-
2017
- 2017-07-26 CN CN201710616102.XA patent/CN107214563B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078563A (en) * | 1980-06-20 | 1982-01-13 | Ferranti Ltd | Work Holding Fixture |
| CN101491876A (en) * | 2009-02-25 | 2009-07-29 | 沪东重机有限公司 | Clamper for processing multi-angle hole of large rotor shaft and processing method thereof |
| CN105855568A (en) * | 2016-06-02 | 2016-08-17 | 上海瑞纽机械股份有限公司 | High temperature gas cooled reactor heat transfer unit internal cylinder component outer circle finish turning system and finish turning method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 卧式加工中心托盘分度交换定位夹紧机构设计;郝超等;《机床与液压》(第22期);全文 * |
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| CN107214563A (en) | 2017-09-29 |
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