CN201279673Y - Centring device special for multi-shaft screw automatic screw down machine - Google Patents
Centring device special for multi-shaft screw automatic screw down machine Download PDFInfo
- Publication number
- CN201279673Y CN201279673Y CNU2008201154609U CN200820115460U CN201279673Y CN 201279673 Y CN201279673 Y CN 201279673Y CN U2008201154609 U CNU2008201154609 U CN U2008201154609U CN 200820115460 U CN200820115460 U CN 200820115460U CN 201279673 Y CN201279673 Y CN 201279673Y
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- tapered sleeve
- wall
- chuck
- short
- taper sleeve
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Abstract
The utility model relates to a special centering device of an automatic multi-shaft bolt tightening machine, and belongs to the technical field of tools and equipment in a compressor assembly line. The device comprises a diving mechanism arranged on the bottom wall of a multi-shaft box of the automatic multi-shaft bolt tightening machine, wherein, the driving mechanism is provide with a pushing rod and is fixed connected with a hollow jacket; a long taper sleeve and a short taper sleeve are arranged in the jacket; the outer wall of the long taper sleeve is closely attached to the inner wall of the jacket, and the outer wall of the long taper sleeve is closely attached to the outer wall of the short taper sleeve; the pushing rod is fixedly connected with the long taper sleeve, and the movable connection between the jacket and the short taper sleeve is realized through connecting pieces; the taper formed between the inner wall of the jacket and the outer wall of the long taper sleeve gradually decreases from top to bottom, while the taper formed between the inner wall of the long taper sleeve and the outer wall of the short taper sleeve gradually increases from top to bottom; and the downward movement of the long taper sleeve between the inner wall of the jacket and the outer wall of the short taper sleeve results in expansion of the lower part of the jacket, with an increase in caliber, as well as contraction of the upper part of the short taper sleeve, with a decrease in caliber. The device has the effects of improving assembling efficiency, reducing labor intensity, and ensuring precision of compressor assembly.
Description
Technical field
The utility model relates to a kind of centring means that is used for the screw-driving machine, especially the centring means on a kind of multi-axial screws automatic screwing device that is used on the compressor assembly line compressor stator and crankcase are fixed belongs to compressor assembly line tooling device technical field.
Background technology
On current refrigerator compressor or compressor of air conditioner assembly line, to being fixedly connected between the compressor part--thread connection is the most frequently used, the most frequent operation.Understand according to the applicant, some the thread connection operations on the compressor assembly line adopt manually and finish at present.Such as, in assembling compressor stator and crankcase operation, existing mode generally is that hand-held pattern carries out the concentric locating of stator and crankcase, and then aids such as electronic screw-driving machine of hand-held single shaft or pneumatic impact spanner are tightened screw one by one.Obvious this screw-driving operating type inefficiency, labour intensity are big, inconvenience and low precision.
Therefore, for the compressor assembly line of serialization operation, corresponding need are provided with the automatic screw-driving machine of special mechanization automatic screw-driving machine, especially multiaxis.According to the knowledge of the applicant be existing single shaft or the synchronous tightening machine of multi-axial screws on existing automobile assembly line, but these screw-driving machines and be not suitable for assembling compressor stator and crankcase operation on the compressor assembly line.Its reason is that these screw-driving machines can not be finished continuously automatic concentric locating to stator and housing, does not have concentric locating accurately then to tighten screw and also has no way of doing.
The utility model content
Technical problem of the present utility model is: at the shortcoming that exists on the above-mentioned existing compressor assembly line, the special-purpose centring means of a kind of multi-axial screws automatic screwing device is proposed, self-centering requirement when assembling compressor stator and crankcase on the compressor assembly line to satisfy, thereby the production efficiency of significantly improving and product quality, and reduce labour intensity.
The technical solution of the utility model is: the special-purpose centring means of a kind of multi-axial screws automatic screwing device, comprise the driving mechanism on the axles box diapire that is placed in the multi-axial screws automatic screwing device, described driving mechanism is provided with push rod and the chuck of the hollow that is fixedly connected, and is provided with long tapered sleeve and short tapered sleeve in the described chuck; The recline outer wall of short tapered sleeve of the outer wall of the described long tapered sleeve chuck inwall that reclines, its inwall; Described push rod and long tapered sleeve are affixed, and described chuck forms activity by connector between the tapered sleeve and connects with lacking; The inwall of described chuck forms the tapering of convergent from top to bottom with the outer wall of long tapered sleeve, and the inwall of described long tapered sleeve forms the tapering of flaring from top to bottom with the outer wall of short tapered sleeve; When described long tapered sleeve moves down between chuck inwall and short tapered sleeve outer wall, rise outside the described chuck bottom and bore becomes big, contract in the described short tapered sleeve top and bore diminishes.
During use, compressor semi-finished product to be assembled (mainly being made of compressor stator circle and the bent axle that passes stator circle center) are placed on the stationary fixture that is positioned under the axles box.Start the multi-axial screws automatic screwing device, the moment of torsion screwdriver by the axles box band and the special-purpose centring means of the utility model multi-axial screws automatic screwing device (hereinafter to be referred as centring means) moves down.When centring means touches the compressor semi-finished product, the chuck bottom of centring means just in time is inserted between stator circle and the bent axle, short tapered sleeve in the chuck just in time is placed in the outer wall of bent axle, start the driving mechanisms control push rod then and move down, promptly drive long tapered sleeve and between chuck inwall and short tapered sleeve outer wall, move down.Like this, long tapered sleeve outwards struts chuck and the chuck outer wall is close on the half-finished shell inner ring of compressor; Push again with the duration tapered sleeve and to contract in the short tapered sleeve and hold tightly on the half-finished bent axle outer wall of compressor.So promptly realize the accurate location between multi-axial screws automatic screwing device and the compressor semi-finished product, thereby lay the foundation for follow-up screw-driving.Finish behind the half-finished screw-driving of compressor, no longer outer support chuck of the moving long tapered sleeve of shipper pole and interior pressure are lacked tapered sleeve on the driving mechanisms control push rod, move on the axles box subsequently and are being with centring means to leave the compressor semi-finished product.So repeatedly, realize the half-finished continous screw tightening operation of all compressors to be installed.
This shows, internal withdraw type automatic center positioner expands outside the utility model is installed on the multi-axial screws automatic screwing device dexterously, thereby the hand assembled method before replacing, be implemented in screw-driving operation continuously and automatically on the compressor production line, not only improved efficiency of assembling greatly, reduce labour intensity, and guaranteed the precision and the repeatability of compressor screwing screw-down torque, thereby helped to guarantee the quality of compressor.
The perfect of technique scheme is: described driving mechanism mainly is made of cylinder body and the piston of being located in the cylinder body, and described push rod is a piston rod of being located at piston one end, and described cylinder body top is provided with two ports, and its lower end and chuck are fixedly connected; It is affixed with the upper end of long tapered sleeve that inferior part of the cylinder block is passed in the lower end of described piston rod.
Further improving of technique scheme is: described cylinder body is a cylinder block, described cylinder block is made of overcoat and the upper and lower butt joint of nut, described piston is positioned at cylinder block inner chamber top, described cylinder block inner chamber bottom is provided with flange, the upper end of described chuck is shaped on the flange that is stuck between inboard, nut lower end and the flange lower end, the end that described piston rod passes flange is set with briquetting, the end that described long tapered sleeve, briquetting and piston rod pass flange is linked together certainly outside to inside by bearing pin, and described chuck is movably linked together by screw rod certainly outside to inside with short tapered sleeve.
Further improving again of technique scheme is: it axially has first group of line of rabbet joint more than two the perisporium upper edge of described chuck, and it axially has second group of line of rabbet joint more than two the perisporium upper edge of described short tapered sleeve.
Further improving of technique scheme is: have through hole on the described chuck perisporium, corresponding through hole has screw on the described short tapered sleeve perisporium, is installed with screw rod in the described through hole; The medial extremity and the screw of described screw rod are spirally connected, and its outboard end and chuck form moving sets; Described outer casing outer wall is set with lining, has short slot on the perisporium of described long tapered sleeve bottom, and shroud ring has outer elastic ring on the described chuck periphery wall, and interior elastic ring is equipped with in support on the internal perisporium of described short tapered sleeve.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the special-purpose centring means of multi-axial screws automatic screwing device of the utility model embodiment.
Fig. 2 be among Fig. 1 A-A to view.
Fig. 3 is the long tapered sleeve structural representation among Fig. 1.
Structural representation when Fig. 4 is the user mode of the special-purpose centring means of the multi-axial screws automatic screwing device of the utility model embodiment.
Fig. 5 is the partial enlarged drawing of I part among Fig. 4.
The specific embodiment
Embodiment
The special-purpose centring means of the multi-axial screws automatic screwing device of present embodiment (hereinafter to be referred as the present embodiment centring means) is a preferred example of the present utility model.As shown in Figure 1, establish the cylinder block 1 of piston 2 in this centring means comprises, the lower end of piston 2 is connected with piston rod 3.The upper end of cylinder block 1 is provided with two gas port A, B, and its lower end closed is connected with the chuck 4 of hollow.Be provided with long tapered sleeve 6 and short tapered sleeve 7 in the chuck 4.The recline outer wall of short tapered sleeve 7 of the recline inwall of chuck 4 of the outer wall of long tapered sleeve 6, the inwall of long tapered sleeve 6.The end that piston rod 3 passes the flange 8 of being located at cylinder block 1 inner chamber bottom is affixed with the upper end of long tapered sleeve 6.The inwall of chuck 4 forms the tapering of convergent from top to bottom with the outer wall of long tapered sleeve 6, and the inwall of long tapered sleeve 6 forms the tapering of flaring from top to bottom with the outer wall of short tapered sleeve 7.
As shown in Figure 1, the further refinement of present embodiment centring means is: 1) cylinder block 1 is made of overcoat 9 and nut 10 upper and lower butt joints, and piston 2 is positioned at cylinder block 1 inner chamber top, and flange 8 is positioned at cylinder block 1 inner chamber bottom.2) upper end of chuck 4 is shaped on flange 11, after the flange 11 with chuck 4 upper ends is stuck between inboard, nut 10 lower ends and flange 8 lower ends, is about to chuck 4 and is fixedly connected with cylinder block 1 sealing.3) end that passes flange 8 at piston rod 3 is set with briquetting 12, is linked together from an end that outside to inside long tapered sleeve 6, briquetting 12 and piston rod 3 is passed flange 8 by bearing pin 5.4) have through hole on chuck 4 perisporiums, corresponding through hole has screw on short tapered sleeve 7 perisporiums, and medial extremity and screw that screw rod 14 passes through hole are spirally connected, and outboard end then forms moving sets with chuck 4.5) overcoat 9 outer walls are set with lining 15, are used for cylinder block 1 is fixed in the diapire of the axles box of multi-axial screws automatic screwing device.6) have short slot 22 on the perisporium of long tapered sleeve 6 bottoms.7) shroud ring has some outer elastic rings 23 on chuck 4 periphery walls, elastic ring 24 in support is equipped with on the internal perisporium of short tapered sleeve 7.
As shown in Figure 2, it axially has three first group of line of rabbet joint 13-1,13-2,13-3 the perisporium upper edge of chuck 4, and it axially has three second group of line of rabbet joint 16-1,16-2,16-3 the perisporium upper edge of short tapered sleeve 7.
The concrete operating position of present embodiment centring means such as Fig. 4, shown in Figure 5.Earlier the present embodiment centring means is contained on the diapire of axles box 18 of multi-axial screws automatic screwing device 17.Multi-axial screws automatic screwing device 17 is placed on the compressor production line, compressor semi-finished product 25 to be assembled (as shown in Figure 5, mainly constituting by compressor stator circle 30 and the bent axle 31 that passes stator circle center) when being delivered to multi-axial screws automatic screwing device 17 positions, anchor clamps group 19 is about to the picking-up of compressor semi-finished product and also clamps.After this, start multi-axial screws automatic screwing device 17, drive axles box 18 and descend, axles box 18 is provided with and is used to tighten the scalable sleeve assembly 20 of head of screw and decide moment of torsion screwdriver 21, and the present embodiment self-centering apparatus is along with axles box 18 descends together.When this present embodiment centring means entered into compressor stator circle 30 inside, chuck 4 bottoms just in time were inserted between stator circle 30 and the bent axle 31, and the short tapered sleeves 7 in the chuck 4 just in time are placed in the outer wall of bent axle 31.Gas inflates for first chamber in the cylinder block 1 to control valve control from one of two gas ports of cylinder block 1 A then, discharge second chamber gas in the cylinder block 1 from two B of two gas ports, cylinder block 1 inner carrier 2 and piston rod 3 move down and drive long tapered sleeve 6 at chuck 4 inwalls and lack between tapered sleeve 7 outer walls and move down.Like this, long tapered sleeve 6 outwards struts chuck 4 and chuck 4 outer walls is close on the stator circle 30, pushes again with duration tapered sleeve 6 and contracts in the short tapered sleeve 7 and hold tightly on bent axle 31 outer walls (this moment screw rod 14 inwardly motion and the then relative screw rod 14 of chuck 4 outwards slide with short tapered sleeve 7).So both realized the centering of compressor stator and bent axle, realize the accurate location between multi-axial screws automatic screwing device 17 and the compressor semi-finished product again, after finishing, the location make treating on the scalable sleeve assembly 19 aligning compressor semi-finished product on the axles box 18 can finish screw-driving by scalable sleeve assembly 20 at last in the screwing place.Finish behind the half-finished screw-driving of compressor, gas is inflated to second chamber in the cylinder block 1 to two B of control valve control from two gas ports, discharge first chamber gas in the cylinder block 1 from one of two gas ports of cylinder block 1 A, no longer outer support chuck 4 of the moving long tapered sleeve 6 of shipper pole and the short tapered sleeve 7 of interior pressure on the piston 2, chuck 4 and short tapered sleeve 7 contract and the basic former state of recovering in the outer back of expanding in respectively again under the effect of elastic ring 23 and interior elastic ring 24 outside respectively, move on the axles box 18 subsequently and are being with the present embodiment centring means to leave the compressor semi-finished product.The compressor semi-finished product of finishing screw-driving leave anchor clamps group 19, and the next one treats that the compressor semi-finished product of screwing enter anchor clamps group 19 again, beginning screw-driving operation next time.So repeatedly, realize the half-finished continous screw tightening operation of all compressors to be installed.
Facts have proved that the self-centering apparatus regulation and control of the multi-axial screws automatic screwing device of present embodiment are convenient, operate steadily, and significantly improved production efficiency, guaranteed the gap of the stator and the rotor of compressor conscientiously, help the quality control of subsequent compression machine.
In addition to the implementation, the special-purpose centring means of multi-axial screws automatic screwing device of the present utility model can also have other embodiments.What expect easily is:
1) is used for driving motion that long tapered sleeve 6 moves up and down in chuck 4 except the foregoing description piston motion, can also replace by bent axle, fork, cam or other motion, respective cylinder body 1 can be replaced by motor, and piston rod 3 can be replaced by the push rod that connects with bent axle, fork or cam;
2) cylinder block 1 also can feed liquid or other driving medium, and two gas port A, B are exactly two ports of turnover driving medium, and this body structure of cylinder body is constant;
3) overcoat 9 of cylinder block 1 and nut 10 also can synthesize an integral body, perhaps overcoat 9, nut 10 and chuck 4 synthetic integral body;
4) chuck 4 also can adopt with cylinder block 1 and be threaded, welds or other connecting modes;
5) flange 8 can be synthetic whole with nut 10, perhaps flange made in nut 10 lower ends, and piston rod 3 directly passes nut 10;
6) briquetting 12 can not wanted yet, directly will long tapered sleeve and an end of piston rod 3 be linked together;
7) also can adopt between long tapered sleeve, briquetting 12 and the piston rod 3 welding, be threaded or other connecting modes;
8) screw rod 14 also can be to be fixed on the chuck 4 and to form moving sets with short tapered sleeve 7;
9) screw rod 14 also can be replaced by the bearing pin or other connector that are fixed on chuck 4 or the short tapered sleeve 7, as long as chuck 4 is connected with short tapered sleeve 7 formation activities;
10) line of rabbet joint on chuck 4 and the short tapered sleeve 7 also can be two or many, form with the elastic ring shroud ring after perhaps chuck 4 and short tapered sleeve integral body are divided into some, perhaps the top (or all) of bottom of chuck 4 (or all) and short tapered sleeve 7 adopts elastomeric material to make, as long as when long tapered sleeve presses down, can make chuck 4 and short tapered sleeve 7 outer respectively rise and in contract elastic ring 23 and interior elastic ring 24 outside chuck can save during with weak point tapered sleeve 7 employing elastomeric materials; Or the like.
All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (5)
1. the special-purpose centring means of a multi-axial screws automatic screwing device, it is characterized in that: comprise the driving mechanism on the axles box diapire that is placed in the multi-axial screws automatic screwing device, described driving mechanism is provided with push rod and the chuck of the hollow that is fixedly connected, and is provided with long tapered sleeve and short tapered sleeve in the described chuck; The recline outer wall of short tapered sleeve of the outer wall of the described long tapered sleeve chuck inwall that reclines, its inwall; Described push rod and long tapered sleeve are affixed, and described chuck forms activity by connector between the tapered sleeve and connects with lacking; The inwall of described chuck forms the tapering of convergent from top to bottom with the outer wall of long tapered sleeve, and the inwall of described long tapered sleeve forms the tapering of flaring from top to bottom with the outer wall of short tapered sleeve; When described long tapered sleeve moves down between chuck inwall and short tapered sleeve outer wall, rise outside the described chuck bottom and bore becomes big, contract in the described short tapered sleeve top and bore diminishes.
2. according to the special-purpose centring means of the described multi-axial screws automatic screwing device of claim 1, it is characterized in that: described driving mechanism mainly is made of cylinder body and the piston of being located in the cylinder body, described push rod is a piston rod of being located at piston one end, described cylinder body top is provided with two ports, and its lower end and chuck are fixedly connected; It is affixed with the upper end of long tapered sleeve that inferior part of the cylinder block is passed in the lower end of described piston rod.
3. according to the special-purpose centring means of the described multi-axial screws automatic screwing device of claim 2, it is characterized in that: described cylinder body is a cylinder block, described cylinder block is by on overcoat and the nut, following butt joint constitutes, described piston is positioned at cylinder block inner chamber top, described cylinder block inner chamber bottom is provided with flange, the upper end of described chuck is shaped on the flange that is stuck between inboard, nut lower end and the flange lower end, the end that described piston rod passes flange is set with briquetting, described long tapered sleeve, the end that briquetting and piston rod pass flange is linked together certainly outside to inside by bearing pin, and described chuck is movably linked together by screw rod certainly outside to inside with short tapered sleeve.
4. according to the special-purpose centring means of the described multi-axial screws automatic screwing device of claim 3, it is characterized in that: it axially has first group of line of rabbet joint more than two the perisporium upper edge of described chuck, and it axially has second group of line of rabbet joint more than two the perisporium upper edge of described short tapered sleeve.
5. according to the special-purpose centring means of the described multi-axial screws automatic screwing device of claim 4, it is characterized in that: have through hole on the described chuck perisporium, corresponding through hole has screw on the described short tapered sleeve perisporium, is installed with screw rod in the described through hole; The medial extremity and the screw of described screw rod are spirally connected, and its outboard end and chuck form moving sets; Described outer casing outer wall is set with lining, has short slot on the perisporium of described long tapered sleeve bottom, and shroud ring has outer elastic ring on the described chuck periphery wall, and interior elastic ring is equipped with in support on the internal perisporium of described short tapered sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201154609U CN201279673Y (en) | 2007-11-30 | 2008-06-03 | Centring device special for multi-shaft screw automatic screw down machine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720041954.2 | 2007-11-30 | ||
| CN200720041954 | 2007-11-30 | ||
| CNU2008201154609U CN201279673Y (en) | 2007-11-30 | 2008-06-03 | Centring device special for multi-shaft screw automatic screw down machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201279673Y true CN201279673Y (en) | 2009-07-29 |
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ID=40926561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201154609U Expired - Fee Related CN201279673Y (en) | 2007-11-30 | 2008-06-03 | Centring device special for multi-shaft screw automatic screw down machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201279673Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111049A (en) * | 2014-08-12 | 2014-10-22 | 广西玉柴机器股份有限公司 | Auxiliary tool for detecting conical surface size of crankshaft |
| CN104923819A (en) * | 2015-07-02 | 2015-09-23 | 庆铃汽车（集团）有限公司 | Device for machining flange plate set holes and corner threaded hole of automobile steering knuckle |
| CN105537922A (en) * | 2016-03-07 | 2016-05-04 | 河北航天振邦精密机械有限公司 | Double-station stator screw machine and installation method thereof |
| CN105872939A (en) * | 2016-05-27 | 2016-08-17 | 歌尔声学股份有限公司 | Automatic centering device |
-
2008
- 2008-06-03 CN CNU2008201154609U patent/CN201279673Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111049A (en) * | 2014-08-12 | 2014-10-22 | 广西玉柴机器股份有限公司 | Auxiliary tool for detecting conical surface size of crankshaft |
| CN104923819A (en) * | 2015-07-02 | 2015-09-23 | 庆铃汽车（集团）有限公司 | Device for machining flange plate set holes and corner threaded hole of automobile steering knuckle |
| CN105537922A (en) * | 2016-03-07 | 2016-05-04 | 河北航天振邦精密机械有限公司 | Double-station stator screw machine and installation method thereof |
| CN105872939A (en) * | 2016-05-27 | 2016-08-17 | 歌尔声学股份有限公司 | Automatic centering device |
| CN105872939B (en) * | 2016-05-27 | 2018-12-04 | 歌尔股份有限公司 | Self-centering apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA SHIPBUILDING INDUSTRY PENGLI (NANJING) INTEL Free format text: FORMER NAME: NANJING PRIDE TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Jiangning Development Zone in Nanjing City, Jiangsu province 211153 Evergreen Street No. 32 Patentee after: China Shipbuilding Heavy Industry (Nanjing) Intelligent Equipment Co., Ltd. Address before: Shuige road Jiangning Development Zone in Nanjing City, Jiangsu province 211153 (Dong Shanqiao) Patentee before: Nanjing Pride Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20170603 |