CN203210138U - Numerical-control grinding machine for connecting rod journals of crankshafts - Google Patents
Numerical-control grinding machine for connecting rod journals of crankshafts Download PDFInfo
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- CN203210138U CN203210138U CN 201320212914 CN201320212914U CN203210138U CN 203210138 U CN203210138 U CN 203210138U CN 201320212914 CN201320212914 CN 201320212914 CN 201320212914 U CN201320212914 U CN 201320212914U CN 203210138 U CN203210138 U CN 203210138U
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Abstract
The utility model discloses a numerical-control grinding machine for connecting rod journals of crankshafts. The numerical-control grinding machine comprises a grinding machine body and a movable workbench. The movable workbench is mounted on the grinding machine body, a headstock case, a tailstock case, a crankshaft supporting center frame and a grinding wheel frame are mounted on the movable workbench, the grinding wheel frame is used for mounting a grinding wheel dresser, a first power motor is arranged on the headstock case, a second power motor is arranged on the tailstock case, and the first power motor and the second power motor run synchronously. The numerical-control grinding machine has the advantages that power separation is implemented under the control of a numerical-control system, so that errors caused by mechanical transmission are prevented, and the precision of a ground and machined crankshaft is guaranteed; a servo indexing mechanism is mounted on the headstock case and is connected with a servo motor by an indexing transmission shaft of the servo indexing mechanism, a servo indexing numerical-control precision positioning effect is realized via a computer control center, and automatic indexing in a machining procedure is implemented, so that the radial angular precision of the crankshaft and the quality of a product are improved, and the integral work efficiency of grinding machine equipment for the crankshafts is enhanced.
Description
Technical field
The utility model relates to a kind of numerical-control crankshaft connecting rod neck grinding machine.
Background technology
Bent axle is the main rotary gadget of engine, can accept the reciprocating motion of connecting rod and it is changed into to rotatablely move, and crankshaft grinding machine is the capital equipment of machining crankshafts, and the fixed mount by this crankshaft grinding machine holds bent axle it is processed.
The installation way of bent axle on special purpose grinder is very big to the precision influence of processing the back bent axle, common installation way is that bent axle one end is clamped on the chuck of headstock cabinet, the other end is clamped on the chuck of tailstock cabinet, headstock cabinet drives the tailstock cabinet by mechanical transmission mechanism and rotates synchronously, to guarantee the precision of bent axle.But, because mechanical transmission mechanism exists gap and error, can not accurately guarantee the synchronous rotation of the chuck of the chuck of headstock cabinet and tailstock cabinet, thereby influence the bent axle precision after the grinding.
In addition, calibration is rod journal requisite process in process, the axle journal that must remain the processing part in the rod journal process keeps concentric with the alignment of shafts, and for example: maneton is six necks, is respectively by processing sequence: 1 rod journal, 6 rod journals; 2 rod journals, 5 rod journals; Three groups of 3 rod journals, 4 rod journals are arranged as 360o/3 by angle, respectively arrange for 120o.At first process 3 rod journals, 4 rod journals, rotate 120o then and process 2 rod journals, 5 rod journals, rotate 120o again and process 1 rod journal, 6 rod journals.Therefore must rotate 120o after machining first group reprocesses next group.Calibration mode in the past is that the bent axle anchor clamps rotate under little loose state, and bent axle reaches under external force needs the angle position to get final product.Because this a series of actions need take quite a few time, influences the operating efficiency of equipment.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned defective, and a kind of numerical-control crankshaft connecting rod neck grinding machine of realizing synchronous operation of regulating by numerical control is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of numerical-control crankshaft connecting rod neck grinding machine is provided, comprise grinder bed and the travelling table that is installed on the grinder bed, headstock cabinet, tailstock cabinet are installed on the travelling table, support the centre frame of bent axle and the grinding carriage of installation dresser, described headstock cabinet is provided with first power motor, described tailstock cabinet is provided with and synchronous operated second power motor of first power motor.
The servomotor that described first power motor and described second power motor are same model.
Described grinding machine also comprises the servo indexing mechanism that is installed on the headstock cabinet, and the front end of the calibration power transmission shaft of servo indexing mechanism is connected with driving mechanism, and driving mechanism is installed cabinet by power and is installed on the headstock cabinet.
Main shaft on the described headstock cabinet is connected with headstock clamp body, and described servo indexing mechanism is installed on the headstock clamp body.
Described driving mechanism comprises servomotor and the reductor that is connected with servomotor, and the output shaft of described reductor is connected with calibration power transmission shaft front end by shaft coupling.
Described reductor is installed in power and installs on the cabinet.
Described servo indexing mechanism comprises the calibration headstock that is installed on the headstock clamp body, be connected indexing case on the calibration headstock, by the dividing spindle of bearings in the indexing case axis hole, evenly be arranged on ratchet on the dividing spindle, the hook tooth identical with the crank-shaft link neck number of phases and be installed in gear drive on the indexing case, described gear drive is connected the rear end of calibration power transmission shaft, and described indexing case is provided with the ratchet of hook tooth location.
Described gear drive comprise dividing gear, with the excessive gear of dividing gear engagement and with the excessive driving gear of gear engagement, described dividing gear is connected on the dividing spindle, described driving gear is arranged on the rear end of calibration power transmission shaft.
The utility model compared with prior art, beneficial effect is: be equipped with power separately respectively on the headstock cabinet He on the tailstock cabinet, can realize that power separately by digital control system control, saved traditional headstock cabinet the synchronizing shaft transmission mechanism and with being connected of tailstock cabinet, overcome the error that machine driving is brought, guaranteed the precision of bent axle after the grinding; Simultaneously at headstock cabinet servo indexing mechanism has been installed, servo indexing mechanism connects servomotor by the calibration power transmission shaft of this servo indexing mechanism, reach the numerically controlled accurate location of servo calibration by computer controlling center, realized the automatic indexing in the process, improve radial angle precision and the product quality of bent axle thus, also improved the operating efficiency of crankshaft grinding machine equipment integral body.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is front view of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 3 is the scheme of installation of the utility model headstock cabinet and servo indexing mechanism;
Fig. 4 is the front view of the servo indexing mechanism of the utility model;
Fig. 5 is the side view of the servo indexing mechanism of the utility model.
The specific embodiment
As shown in Figure 1, 2, a kind of numerical-control crankshaft connecting rod neck grinding machine, comprise grinder bed 1 and the travelling table 2 that is installed on the grinder bed 1, headstock cabinet 3, tailstock cabinet 8 are installed on the travelling table 2, support the centre frame 10 of bent axle and the grinding carriage 11 of installation dresser 12, headstock cabinet 3 is provided with first power motor 4, tailstock cabinet 8 is provided with can be by the digital control system control of Crankshaft Grinding with first power motor, 4 synchronous operated second power motor, 9, the first power motors 4 and second power motor 9.Be equipped with power separately respectively on the headstock cabinet 3 He on the tailstock cabinet 8, realized that by digital control system control power separately, saved traditional headstock cabinet the synchronizing shaft transmission mechanism and with being connected of tailstock cabinet, overcome the error that machine driving is brought, guaranteed the precision of bent axle after the grinding.Wherein first power motor 4 and second power motor 9 are the servomotor of same model, the driving error of having avoided adopting the servomotor of different model to cause.
For another example shown in Fig. 1,3, grinding machine of the present utility model also comprises servo indexing mechanism 6, servo indexing mechanism 6 is installed on the headstock clamp body 5, headstock clamp body 5 is installed on the main shaft 3.1 of headstock cabinet, the front end of the calibration power transmission shaft 6.1 of servo indexing mechanism 6 connects driving mechanism 7, reach the numerically controlled accurate location of servo calibration by computer controlling center, realized the automatic indexing in the process, improve radial angle precision and the product quality of bent axle thus, also improved the operating efficiency of crankshaft grinding machine equipment integral body.Driving mechanism of the present utility model comprises servomotor 7.1 and the reductor 7.2 that is connected with servomotor, the output shaft of reductor 7.2 is connected with calibration power transmission shaft 6.1 front ends by shaft coupling 7.4, and reductor 7.2 is installed in power and installs on the cabinet 7.3, is installed on the headstock cabinet 3 thereby make driving mechanism 7 by power cabinet 7.3 is installed.
As shown in Figure 4, servo indexing mechanism comprises to be installed indexing case 34, is supported on dividing spindle 22(such as Fig. 5 in indexing case 34 axis holes by bearing 27 on the calibration headstock 33 that is installed on the headstock clamp body 5, the calibration headstock 33), evenly be arranged on ratchet 15 on the dividing spindle 22, the hook tooth 31 identical with the crank-shaft link neck number of phases and be installed in gear drive on the indexing case, also be provided with the ratchet 16 that hook tooth 31 is located on the indexing case.Dividing head pressing plate 18 is installed in and pushes down indexing case 34 on the calibration headstock 33, spring capping 13 is installed in pressing spring 17 on the indexing case 34, vertical centre regulating block 14 is installed on the headstock clamp body 5 in order to the center up and down of fine adjustment calibration headstock 33, and tarpaulin 32 is installed on the spring capping 13.
As shown in Figure 5: calibration power transmission shaft 6.1 front ends are connected with shaft coupling 7.2 with speed reducer output shaft; Gear drive comprise dividing gear 26, with the excessive gear 25 of dividing gear 26 engagement and with the excessive driving gear 24 of gear 25 engagements, the rear end that dividing gear 26 is connected on the dividing spindle 22, driving gear 24 is installed in calibration power transmission shaft 6.1, excessive gear 25 are installed on the holder 30, in the dynamic connection by excessive gear 25, the radius size that reaches the calibration transmission changes needs, forms the gear drive that needs with crank-shaft link neck number of phases (as: 180o, 120 o, 90 o equal angles demands).Holder 30 is fixed on the indexing case 34, is driving-chain by excessive gear 25 and dividing gear 14 polyphones.Bearing 27 is installed indexing case 34 and is formed rotary motion pairs with dividing spindle 22, water proof ring 28 is installed on the indexing case 34, and water proof ring 28 is installed O shapes circle 29, and index dial 19 is installed in and covers water proof ring 28 on the dividing spindle 22 and prevent that seepage from entering the mechanism the inside; Fine setting pivot pin 20 is installed on the index dial 19 as to position fine setting benchmark, and 0 pin installing plate 21 is fixed on the index dial 19, is responsible for finely tuning to the position; Central shaft 23 is with the centralized positioning of dividing spindle 22, index dial 19,0 pin installing plate 21, and projection docks with workpiece centre, forms the dividing movement pair; Behind ratchet rotation 90o, 120o or 180o (for accurate location), revolution allows hook tooth be close to ratchet to get final product again, when crank throw need be adjusted, adjust the lock screw of calibration headstock is loosening, loosening dividing head lock screw rotates dividing head and allows excessive gear mesh with driving gear to get final product then.
What the servo indexing mechanism in the present embodiment adopted is the servo indexing mechanism of the disclosed a kind of numerical-control crankshaft connecting rod neck of Chinese invention patent (application publication number CN102259276A, Shen Qing Publication day 2011.11.30), and detailed content can be referring to the application documents of having announced.
By reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (8)
1. numerical-control crankshaft connecting rod neck grinding machine, comprise grinder bed and the travelling table that is installed on the grinder bed, headstock cabinet, tailstock cabinet are installed on the travelling table, support the centre frame of bent axle and the grinding carriage of installation dresser, it is characterized in that described headstock cabinet is provided with first power motor, described tailstock cabinet is provided with and synchronous operated second power motor of first power motor.
2. numerical-control crankshaft connecting rod neck grinding machine according to claim 1 is characterized in that, the servomotor that described first power motor and described second power motor are same model.
3. numerical-control crankshaft connecting rod neck grinding machine according to claim 1, it is characterized in that, described grinding machine also comprises the servo indexing mechanism that is installed on the headstock cabinet, the front end of the calibration power transmission shaft of servo indexing mechanism is connected with driving mechanism, and driving mechanism is installed cabinet by power and is installed on the headstock cabinet.
4. numerical-control crankshaft connecting rod neck grinding machine according to claim 3 is characterized in that the main shaft on the described headstock cabinet is connected with headstock clamp body, and described servo indexing mechanism is installed on the headstock clamp body.
5. numerical-control crankshaft connecting rod neck grinding machine according to claim 3 is characterized in that described driving mechanism comprises servomotor and the reductor that is connected with servomotor, and the output shaft of described reductor is connected with calibration power transmission shaft front end by shaft coupling.
6. numerical-control crankshaft connecting rod neck grinding machine according to claim 5 is characterized in that, described reductor is installed in power and installs on the cabinet.
7. numerical-control crankshaft connecting rod neck grinding machine according to claim 3, it is characterized in that, described servo indexing mechanism comprises the calibration headstock that is installed on the headstock clamp body, be connected indexing case on the calibration headstock, by the dividing spindle of bearings in the indexing case axis hole, evenly be arranged on ratchet on the dividing spindle, the hook tooth identical with the crank-shaft link neck number of phases and be installed in gear drive on the indexing case, described gear drive is connected the rear end of calibration power transmission shaft, and described indexing case is provided with the ratchet of hook tooth location.
8. numerical-control crankshaft connecting rod neck grinding machine according to claim 7, it is characterized in that, described gear drive comprise dividing gear, with the excessive gear of dividing gear engagement and with the excessive driving gear of gear engagement, described dividing gear is connected on the dividing spindle, and described driving gear is arranged on the rear end of calibration power transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212914 CN203210138U (en) | 2013-04-24 | 2013-04-24 | Numerical-control grinding machine for connecting rod journals of crankshafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320212914 CN203210138U (en) | 2013-04-24 | 2013-04-24 | Numerical-control grinding machine for connecting rod journals of crankshafts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203210138U true CN203210138U (en) | 2013-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320212914 Expired - Fee Related CN203210138U (en) | 2013-04-24 | 2013-04-24 | Numerical-control grinding machine for connecting rod journals of crankshafts |
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| CN (1) | CN203210138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476358A (en) * | 2014-11-14 | 2015-04-01 | 广州遂联自动化设备有限公司 | Four axis and three linkage numerical control automatic polishing machine |
-
2013
- 2013-04-24 CN CN 201320212914 patent/CN203210138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104476358A (en) * | 2014-11-14 | 2015-04-01 | 广州遂联自动化设备有限公司 | Four axis and three linkage numerical control automatic polishing machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 432100 No. 222, air route, Hubei, Xiaogan Patentee after: HUBEI WEIXIANG NUMERICAL CONTROL MACHINE CO., LTD. Address before: 432100, Donghe street, little east gate, Xinhua Street, Xiaonan District, Hubei, Xiaogan, 79 Patentee before: Xiaogan Weixiang Numerical Control Machine Tool Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20200424 |
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| CF01 | Termination of patent right due to non-payment of annual fee |