CN107639136B - Valve straightener - Google Patents
Valve straightener Download PDFInfo
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- CN107639136B CN107639136B CN201711098129.0A CN201711098129A CN107639136B CN 107639136 B CN107639136 B CN 107639136B CN 201711098129 A CN201711098129 A CN 201711098129A CN 107639136 B CN107639136 B CN 107639136B
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Abstract
The invention discloses a valve straightening machine.A feeding main shaft, a discharging main shaft and a swing arm positioning shaft are transversely arranged between two cavity chambers of an upper box body, the swing arm positioning shaft is provided with a swing arm, a straightening shaft is arranged on the front arm of the swing arm, and the front arm is driven by a hydraulic pump or a servo motor to approach, squeeze and correct the rod part and the disc part of a valve workpiece; the advantages are that: 1. the alignment precision can be improved, the workpiece is prevented from being blocked, and an important guarantee function is played in the aspect of guaranteeing the normal operation of the machine; 2, a hydraulic system oil cylinder or a servo motor is adopted to drive the swing arm, and the swing arm is controlled by a program to realize fast forward and slow backward and fast backward, so that the contact straightening time of the straightening roller and the valve workpiece is prolonged, the rebound of a rod part can be suppressed, and the stress reduction is reduced; 3, a supporting finger is arranged to offset the centrifugal force of the valve workpiece, and the motion specification of the valve workpiece is pressed and bound to enable the valve workpiece to fall into the discharge hole; and the position of the supporting finger can be adjusted, so that the gravity center of the valve workpiece is kept, and the valve workpiece is in a horizontal state.
Description
Technical Field
The invention relates to a mechanical device for correcting a shape and position metric of a machined part; in particular to a valve straightener.
Background
The valve is generally applied to an engine, and needs to operate in a high-frequency reciprocating mode under a high-temperature and high-pressure environment, and has high requirements on dimensional tolerance, form and position tolerance and mechanical strength; the valve comprises a rod part and a disc part, which are subjected to heat treatment after processing and are easy to deform after being heated.
For correction, the originally designed scheme is similar to a thread rolling machine, and two rotating shafts vertically rotate to clamp and correct a valve workpiece; later on, a triaxial correction was developed, the axis becoming the horizontal axis.
Patent CN201410405107.4 discloses a three-axis corrected valve straightening machine, and the straightening principle is that the three-axis extrusion rod part is actually adopted, so that the rod part can be deformed according to the design requirement; meanwhile, the correcting cone pulley is used for extruding the disc part, so that the shape tolerance of the two parts can be improved.
The equipment in the application is mechanically simple, a guarantee mechanism for keeping the valve workpiece horizontal all the time during working is not provided, a guarantee mechanism for restricting the motion specification of the valve workpiece is not provided, and the equipment is easy to break down; because the valve workpiece disc portion is heavy, it is easy to incline sideways.
The valve rod part clamped between the first shaft and the second shaft is co-extruded by using the fourth shaft which is close to the first shaft and the second shaft, the fourth shaft can be close to the valve rod part for correction work only when the swing arm swings to an end point, and the contact and extrusion time is short; the valve rod part is of a slender structure, and can rebound after being extruded, so that the form and position tolerance of the valve rod part after rebound can reach the design requirement, and when the valve rod part is designed, the movement end point of the fourth shaft needs to be leaning forward a little, so that the form and position tolerance exceeds the requirement during extrusion, and then the valve rod part is rebounded to be within the reasonable form and position tolerance requirement range; in popular terms, the equipment is extruded more forwards than the central axis of the rod part rather than the rod part is arched; this design creates new stress concentrations in the compressed portions of the valve stem, compromising tensile strength and fatigue limits.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the valve straightening machine which can prevent the valve workpiece from being laterally inclined, can improve the correction quality, set the extrusion straightening time and reduce the local stress of the valve rod without damaging the valve under the condition of ensuring the form and position tolerance.
In order to solve the technical problems, the invention is solved by the following technical scheme: the valve straightening machine comprises an upper box body and a lower box body which are stacked together, wherein a hollow cavity is formed in the left side and the right side of the upper box body respectively, a vertical transmission main shaft is arranged in the left side of the hollow cavity, a feeding main shaft, a discharging main shaft and a swing arm positioning shaft are transversely arranged between the two hollow cavity, the feeding main shaft and the discharging main shaft are connected with the transmission main shaft through a turbine vortex rod structure, and the transmission main shaft is powered by a motor; the swing arm positioning shaft is provided with a swing arm, the swing arm comprises a pair of front arms and a pair of tail arms, a straightening shaft is arranged between the front arms, the tail arms are provided with rotary joints, and the rotary joints are provided with driving mechanisms; two upper rollers and an upper limit cone pulley are sequentially arranged on the feeding main shaft from left to right, a material receiving opening is formed in the upper rollers, two lower rollers and a lower limit cone pulley are sequentially arranged on the discharging main shaft from left to right, a material outlet is formed in the lower rollers, the upper rollers correspond to the lower rollers, the upper limit cone pulley corresponds to the lower limit cone pulley and jointly abuts against the bottom plane of the disc part of the valve workpiece, and therefore the rod part of the valve workpiece cannot incline during feeding and discharging; two straightening rollers and one correcting cone pulley are sequentially arranged on the straightening shaft from left to right, a disc cone pulley assembly is arranged on the inner side wall of the cavity chamber on the right side, and the disc cone pulley assembly is longitudinally arranged; under the drive of the swing arm, the straightening roller is close to and straightens the rod part of the valve workpiece clamped between the material receiving openings, and the correction cone is close to the disc part cone assembly to finish disc part correction of the valve workpiece.
A pulling rod shaft is also transversely arranged between the two cavity chambers, a supporting finger for restraining the running track of the valve and a single-acting cylinder are arranged on the pulling rod shaft, the single-acting cylinder pushes and supports the finger to enable the valve workpiece not to be blocked and not to be leaked, and the valve can be supported according to the feeding and discharging movement direction of the valve workpiece.
The feeding main shaft is also provided with an inclined plane baffle wheel and/or a material placing plate; the inclined baffle wheel is arranged on the upper roller wheel, and the slope faces to the upper limit cone pulley; the material placing plate is composed of two thin plates, is generally consistent with the axial projection of the upper roller or the lower roller, and is fixed on the left side surface of the upper roller and/or the lower roller; the right end of the feeding main shaft is provided with a correcting cone pulley locking device.
The driving mechanism comprises a hydraulic system and an oil cylinder, and the front end of the oil cylinder is connected with the rotating joint through a piston rod; an adjusting screw rod is arranged at the rear end of the oil cylinder, an adjusting gear disc is arranged on the adjusting screw rod, and the adjusting gear disc is connected with an adjusting scale gear through a transmission gear; the side of the oil cylinder is provided with a switch bracket, and the switch bracket is provided with a proximity switch.
The disc part cone pulley assembly comprises a cone pulley fixing seat, a cone pulley shaft is arranged in the cone pulley fixing seat, an adjusting hand wheel is arranged at the rear end of the cone pulley shaft, a locking spanner is arranged in the middle of the cone pulley shaft, a rotating bearing is arranged at the front end of the cone pulley shaft, a fixed bevel pulley is arranged outside the rotating bearing, and a sealing cover is arranged at the end head of the fixed bevel pulley; the cone pulley fixing seat is arranged on the side wall of the empty cavity, and the fixed bevel pulley and the correction cone pulley jointly correct the disc part of the valve workpiece.
A feeding device is arranged above the upper box body and comprises a material channel clamping plate, a material channel pressing plate, a pressing plate height adjusting seat, a middle discharging rod, a clamping plate mounting seat, a terminal discharging cylinder and a head valve constraint device; the valve workpiece slides downwards along the material channel clamping plate and enters the material receiving opening under the action of the end valve restraining device, the end valve restraining device is arranged on the outer side of the material channel clamping plate and is perpendicular to the inner side surface of the cavity chamber, two baffles are arranged under the end valve restraining device, and the baffles are parallel to the plane of the upper roller.
The upper box body is a cast iron, and a lubrication system is arranged in a cavity chamber at the left side; a working lamp, a three-color warning lamp and a rotary operation control box are arranged on the upward side of the right hollow chamber; and a frame of a special-shaped material is further arranged in the space between the two cavity chambers, the front surface and the rear surface of the frame are both glass sliding doors, and the clamping plate mounting seat is fixed on the upper edge of the frame.
The lower box body is a sheet metal welding part, the right side of the lower box body is an oil groove, a hydraulic pump, cooling air and a hydraulic valve bank are arranged on the cover surface, a thermometer is arranged on the outward side surface of the oil groove, and a straightener air source is arranged on the inward side surface; the left side of lower box is motor case and block terminal, the motor is placed in the motor case.
The driving mechanism comprises a servo motor and a motor frame, the motor frame is arranged on the inner side plate of the lower box body, and a telescopic rod of the servo motor is arranged on the rotary joint.
Compared with the prior art, the invention has the following beneficial effects: 1. when the upper limit cone pulley and the lower limit cone pulley are arranged to work, the disc part of the valve workpiece is propped against, so that the rod part of the valve workpiece can be in a horizontal normal state, and an important guarantee function is played in the aspects of improving the straightening precision and preventing the workpiece from clamping a shell and guaranteeing the normal operation of a machine; 2, a hydraulic pump or a servo motor is adopted to drive the swing arm and is controlled by a program, so that the speed of the straightening shaft is adjustable when approaching to the valve workpiece, the quick-forward and slow-backward quick-backward is realized, the contact straightening time of the straightening roller and the valve workpiece is prolonged, the rebound of a rod part can be suppressed, and the stress reduction is reduced; 3, a supporting finger is arranged to offset the centrifugal force of the valve workpiece, and the motion specification of the valve workpiece is pressed and bound to enable the valve workpiece to fall into the discharge hole; the position of the supporting finger can be adjusted, and the gravity center of the valve workpiece is kept so as to be in a horizontal state; 4. according to the shape difference of the valve workpiece, an inclined baffle wheel and/or a material placing plate can be further arranged, so that the gravity center of the valve workpiece is stable and is not easy to incline.
Drawings
Fig. 1 is a front view of embodiment 1 of the present invention.
Figure 2 is a front isometric view of example 1 of the present invention.
Figure 3 is a rear isometric view of example 1 of the invention.
Figure 4 is a bottom isometric view of example 1 of the invention.
Fig. 5 shows an upper case and a lower case of embodiment 1 of the present invention.
Fig. 6 is a front view of an internal mechanism diagram of embodiment 1 of the present invention.
Fig. 7 is a rear view of the internal mechanism diagram of embodiment 1 of the present invention.
Fig. 8 is a side view of the internal mechanism of embodiment 1 of the present invention.
Fig. 9 is an isometric view of the internal mechanism of embodiment 1 of the present invention.
Fig. 10 is a part view of a disc cone pulley assembly B according to embodiment 1 of the present invention.
Fig. 11 is a part view of a feeding device C of embodiment 1 of the present invention.
Fig. 12 is a part view of a driving mechanism a according to embodiment 1 of the present invention.
Fig. 13 is a partial view of the part lever shaft 21 of embodiment 1 of the present invention.
Fig. 14 is a part view of a servo motor according to embodiment 2 of the present invention.
Fig. 15 is a sectional view of the whole servo valve straightener of embodiment 2 of this invention.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: as shown in fig. 1-15, the labels are as follows: the device comprises a driving mechanism A, a disc part cone pulley assembly B, a feeding device C, an upper box body 01, a cavity chamber 011, a lower box body 02, an oil groove 021, a transmission main shaft 03, a feeding main shaft 04, a discharging main shaft 05, a swing arm positioning shaft 06, a turbine vortex rod structure 07, a motor 08, a swing arm 09, a front arm 091, a tail arm 092, a straightening shaft 10, an upper limit cone pulley 12, an upper roller 13, a material receiving port 131, a lower limit cone pulley 14, a lower roller 15, a material outlet 151, a valve workpiece 16, a correction cone pulley 17, a straightening roller 18, a three-color warning lamp 19, a pull rod shaft 21, a single-action cylinder 22, a supporting finger 23, an inclined-surface baffle wheel 27, a material placing plate 28, a correction cone pulley locking device 29, an oil cylinder 30, a rotary joint 31, an adjusting screw rod 32 the automatic leveling machine comprises an adjusting gear disc 33, a transmission gear 34, an adjusting scale gear 35, a switch bracket 36, a proximity switch (not labeled in the figure), a cone pulley fixing seat 38, a cone pulley shaft 39, an adjusting hand wheel 40, a locking wrench 41, a rotating bearing 42, a fixed bevel pulley 43, a sealing cover 44, a material channel clamping plate 45, a material channel clamping plate 46, a clamping plate height adjusting seat 47, an intermediate discharging rod 48, a clamping plate mounting seat 49, a terminal discharging cylinder 50, a terminal valve restraint device 51, a baffle 511, a rotary operation control box 52, a working lamp 53, a frame 54, a hydraulic pump 55, a cooling fan 56, a hydraulic valve group 57, a thermometer 58, a straightener air source 59, a motor box 60, a distribution box 61, a servo motor 62 and a motor bracket 63.
The valve straightening machine comprises an upper box body 01 and a lower box body 02 which are stacked together, wherein a cavity chamber 011 is formed in the left side and the right side of the upper box body respectively, a vertical transmission main shaft 03 is arranged in the left cavity chamber, a feeding main shaft 04, a discharging main shaft 05 and a swing arm positioning shaft 06 are transversely arranged between the two cavity chambers, the feeding main shaft and the discharging main shaft are connected with the transmission main shaft through a turbine vortex rod structure 07, and the transmission main shaft is powered by a motor 08; the swing arm 09 is arranged on the swing arm positioning shaft and comprises a pair of front arms 091 and a pair of tail arms 092, a straightening shaft 10 is arranged between the front arms, a rotary joint is arranged on the tail arms, and a driving mechanism is arranged on the rotary joint; two upper rollers 13 and an upper limit cone 12 are sequentially arranged on the feeding main shaft from left to right, a material receiving opening 131 is formed in the upper rollers, two lower rollers 15 and a lower limit cone 14 are sequentially arranged on the discharging main shaft from left to right, a material outlet 151 is formed in the lower rollers, the upper rollers correspond to the lower rollers, and the upper limit cone corresponds to the lower limit cone; two straightening rollers 18 and one correcting cone 17 are sequentially arranged on the straightening shaft from left to right, a disc cone pulley assembly B is arranged on the inner side wall of the hollow chamber, and the disc cone pulley assembly is longitudinally arranged; under the drive of the swing arm, the straightening roller is close to and straightens the rod part of the valve workpiece clamped between the material receiving openings, and the correction cone is close to the disc part cone assembly to finish disc part correction of the valve workpiece.
The valve workpiece is published in the same way from the material receiving opening 131 to the material discharging opening 151 as in the patent CN201410405107.4, but more upper limit cone wheels and lower limit cone wheels are correspondingly arranged and are propped against the bottom plane of the tray part of the valve workpiece 16 together, so that the rod part of the valve workpiece cannot incline when being fed and discharged, and the straightening precision of the workpiece is improved better.
A pull rod shaft 21 is also transversely arranged between the two cavity chambers, a supporting finger 23 for restraining the running track of the valve and a single-acting cylinder 22 are arranged on the pull rod shaft, the single-acting cylinder pushes the finger to enable the valve workpiece not to be blocked and not to be leaked, and the valve can be supported according to the feeding and discharging movement direction of the valve workpiece.
For different valve workpieces, the feeding main shaft is also provided with an inclined baffle wheel 27 and/or a material placing plate 28; the inclined baffle wheel is arranged on the upper roller, the inclined surface faces the upper limit cone wheel, which is equivalent to adding a supporting point, and forms a three-pivot structure together with the two upper rollers, so that the rod part is easier to keep horizontal; the material placing plate is composed of two thin plates, is generally consistent with the axial projection of the upper roller or the lower roller, and is fixed on the left side surface of the upper roller and/or the lower roller, which is equivalent to expanding the width of the upper roller or the lower roller; the right end of the feeding main shaft is provided with a correcting cone pulley locking device 29 for adjusting the tightness and the left and right positions.
The driving mechanism can be a hydraulic pump mechanism or a servo motor mechanism, and can realize the functions of fast forward and slow backward and fast backward, so that the straightening working time is prolonged, the excessive straightening can be reduced, and the generation of new stress can be reduced.
The driving mechanism comprises a hydraulic system and an oil cylinder 30, and the front end of the oil cylinder is connected with a rotary joint 31 through a piston rod; an adjusting screw rod 32 is arranged at the rear end of the oil cylinder, an adjusting gear disc 33 is arranged on the adjusting screw rod, and the adjusting gear disc is connected with an adjusting scale gear 35 through a transmission gear 34; a switch bracket 36 is arranged on the side of the oil cylinder, and a proximity switch is arranged on the switch bracket.
The driving mechanism comprises a servo motor 62 and a motor frame 63, the motor frame is arranged on the inner side plate of the lower box body, and a telescopic rod of the servo motor is arranged on the rotary joint.
The disc part cone pulley assembly comprises a cone pulley fixing seat 38, a cone pulley shaft 39 is arranged in the cone pulley fixing seat, an adjusting hand wheel 40 is arranged at the rear end of the cone pulley shaft, a locking spanner 41 is arranged in the middle of the cone pulley shaft, a rotating bearing 42 is arranged at the front end of the cone pulley shaft, a fixed bevel pulley 43 is arranged outside the rotating bearing, and a sealing cover 44 is arranged at the end head of the fixed bevel pulley; the cone pulley fixing seat is arranged on the side wall of the hollow chamber, and is used for fixing the disc part of the valve workpiece to be corrected by the bevel pulley and the correction cone pulley together; the fixed oblique wheel can rotate, so that friction is reduced, and service life is prolonged.
A feeding device C is arranged above the upper box body and comprises a material channel clamping plate 45, a material channel clamping plate 46, a clamping plate height adjusting seat 47, a middle discharging rod 48, a clamping plate mounting seat 49, a terminal discharging cylinder 50 and a terminal valve constraint device 51; the valve workpiece slides down along the material channel clamping plate and enters the material receiving port under the action of the end valve restraining device, the end valve restraining device is arranged on the outer side edge of the material channel clamping plate and is perpendicular to the inner side surface of the cavity chamber, and two baffles 511 are arranged below the end valve restraining device and are parallel to the plane of the upper roller; the clamping plates hung on the material channel can be turned into a flat state so as to enter the upper roller.
The upper box body is a cast iron, and a lubrication system is arranged in a cavity chamber at the left side; a working lamp 53, a three-color warning lamp 19 and a rotary operation control box 52 are arranged on the upward side of the right hollow chamber; a frame 54 of special-shaped material is also arranged in the space between the two cavity chambers, the front and the back surfaces are both glass sliding doors, and the clamping plate mounting seat is fixed on the upper edge of the frame.
The lower box body is a sheet metal welding part, the right side of the lower box body is provided with an oil groove 021, a hydraulic pump 55, a cooling fan 56 and a hydraulic valve group 57 are arranged on the cover surface, a thermometer 58 is arranged on the outward side surface of the oil groove, and a straightener air source 59 is arranged on the inward side surface; the left side of the lower box body is a motor box 60 and a distribution box 61, and the motor is placed in the motor box.
Claims (9)
1. The valve straightening machine comprises an upper box body (01) and a lower box body (02) which are stacked together, wherein a hollow cavity (011) is formed in the left side and the right side of the upper box body respectively, a vertical transmission main shaft (03) is arranged in the left side of the hollow cavity, a feeding main shaft (04), a discharging main shaft (05) and a swing arm positioning shaft (06) are transversely arranged between the two hollow cavity, the feeding main shaft and the discharging main shaft are connected with the transmission main shaft through a worm and gear structure (07), and the transmission main shaft is powered by a motor (08); the method is characterized in that: the swing arm positioning shaft is provided with a swing arm (09), the swing arm comprises a pair of front arms (091) and a pair of tail arms (092), a straightening shaft (10) is erected between the front arms, the tail arms are provided with rotary joints (31), and the rotary joints are provided with driving mechanisms (A); two upper rollers (13) and an upper limit cone pulley (12) are sequentially arranged on the feeding main shaft from left to right, a material receiving opening (131) is formed in the upper rollers, two lower rollers (15) and a lower limit cone pulley (14) are sequentially arranged on the discharging main shaft from left to right, a material discharging opening (151) is formed in the lower rollers, the upper rollers correspond to the lower rollers, the upper limit cone pulley corresponds to the lower limit cone pulley and jointly abuts against the bottom plane of a disc part of the valve workpiece (16), and therefore the rod part of the valve workpiece cannot incline in feeding and discharging; two straightening rollers (18) and a correcting cone (17) are sequentially arranged on the straightening shaft from left to right, a disc cone assembly (B) is arranged on the inner side wall of the hollow chamber, and the disc cone assembly is longitudinally arranged; under the drive of the swing arm, the straightening roller is close to and straightens the rod part of the valve workpiece clamped between the material receiving openings, and the correction cone is close to the disc part cone assembly to finish disc part correction of the valve workpiece.
2. A valve straightener as claimed in claim 1, wherein: a pulling rod shaft (21) is also transversely arranged between the two cavity chambers, a supporting finger (23) for restraining the running specification of the valve and a single-acting cylinder (22) are arranged on the pulling rod shaft, the single-acting cylinder pushes the finger to enable the valve workpiece not to be blocked and not to be leaked, and the valve can be supported according to the feeding and discharging movement direction of the valve workpiece.
3. A valve straightener as claimed in claim 2, wherein: the feeding main shaft is also provided with an inclined baffle wheel (27) and/or a material placing plate (28); the inclined baffle wheel is arranged on the upper roller wheel, and the slope faces to the upper limit cone pulley; the material placing plate is composed of two thin plates, is generally consistent with the axial projection of the upper roller or the lower roller, and is fixed on the left side surface of the upper roller and/or the lower roller; the right end head of the feeding main shaft is provided with a correcting cone pulley locking device (29).
4. A valve straightener as claimed in claim 1, wherein: the driving mechanism comprises a hydraulic system and an oil cylinder (30), and the front end of the oil cylinder is connected with the rotary joint (31) through a piston rod; an adjusting screw rod (32) is arranged at the rear end of the oil cylinder, an adjusting gear disc (33) is arranged on the adjusting screw rod, and the adjusting gear disc is connected with an adjusting scale gear (35) through a transmission gear (34); a switch bracket (36) is arranged on the side edge of the oil cylinder, and a proximity switch is arranged on the switch bracket.
5. A valve straightener as claimed in claim 1, wherein: the disc cone pulley assembly comprises a cone pulley fixing seat (38), a cone pulley shaft (39) is arranged in the cone pulley fixing seat, an adjusting hand wheel (40) is arranged at the rear end of the cone pulley shaft, a locking spanner (41) is arranged in the middle of the cone pulley shaft, a rotating bearing (42) is arranged at the front end of the cone pulley shaft, a fixed bevel pulley (43) is arranged outside the rotating bearing, and a sealing cover (44) is arranged at the end of the fixed bevel pulley; the cone pulley fixing seat is arranged on the side wall of the empty cavity, and the fixed bevel pulley and the correction cone pulley jointly correct the disc part of the valve workpiece.
6. A valve straightener as claimed in claim 1, wherein: a feeding device (C) is arranged above the upper box body and comprises a material channel clamping plate (45), a material channel clamping plate (46), a clamping plate height adjusting seat (47), a middle discharging rod (48), a clamping plate mounting seat (49), a terminal discharging cylinder (50) and an end valve constraint device (51); the valve workpiece slides downwards along the material channel clamping plate and enters the material receiving opening under the action of the end valve restraining device, the end valve restraining device is arranged on the outer side edge of the material channel clamping plate and is perpendicular to the inner side surface of the cavity chamber, two baffles (511) are arranged under the end valve restraining device, and the baffles are parallel to the plane of the upper roller.
7. A valve straightener as set forth in claim 6, wherein: the upper box body is a cast iron, and a lubrication system is arranged in a cavity chamber at the left side; a working lamp (53), a three-color warning lamp (19) and a rotary operation control box (52) are arranged on the upward side of the right hollow chamber; and a frame (54) of a special-shaped material is further arranged in the space between the two cavity chambers, the front surface and the rear surface are both glass sliding doors, and the clamping plate mounting seat is fixed on the upper edge of the frame.
8. A valve straightener as claimed in claim 1, wherein: the lower box body is a sheet metal welding part, the right side of the lower box body is provided with an oil groove (021), a hydraulic pump (55), a cooling fan (56) and a hydraulic valve group (57) are arranged on the cover surface, a thermometer (58) is arranged on the outward side surface of the oil groove, and a straightener air source (59) is arranged on the inward side surface of the oil groove; the left side of the lower box body is provided with a motor box (60) and a distribution box (61), and the motor is placed in the motor box.
9. A valve straightener as claimed in any one of claims 1, 2, 3, 5, 6, 7 or 8, wherein: the driving mechanism comprises a servo motor (62) and a motor frame (63), wherein the motor frame is arranged on the inner side plate of the lower box body, and a telescopic rod of the servo motor is arranged on the rotary joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098129.0A CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098129.0A CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107639136A CN107639136A (en) | 2018-01-30 |
| CN107639136B true CN107639136B (en) | 2023-10-03 |
Family
ID=61125732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098129.0A Active CN107639136B (en) | 2017-11-09 | 2017-11-09 | Valve straightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107639136B (en) |
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| Title |
|---|
| 汽车零部件行业热处理节能与减排的途径与方法;王忠诚;齐乃建;华逢伟;田琳;贺心旺;;金属加工(热加工)(S2);全文 * |
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| Publication number | Publication date |
|---|---|
| CN107639136A (en) | 2018-01-30 |
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