CN112706047A - Jack catch grinding device - Google Patents

Jack catch grinding device Download PDF

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Publication number
CN112706047A
CN112706047A CN202011597622.9A CN202011597622A CN112706047A CN 112706047 A CN112706047 A CN 112706047A CN 202011597622 A CN202011597622 A CN 202011597622A CN 112706047 A CN112706047 A CN 112706047A
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China
Prior art keywords
lathe
lifting
plate
screw
grinding
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Pending
Application number
CN202011597622.9A
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Chinese (zh)
Inventor
方明强
赵玉峰
朱国英
章建海
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Fuyang college
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Fuyang college
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Publication date
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Priority to CN202011597622.9A priority Critical patent/CN112706047A/en
Publication of CN112706047A publication Critical patent/CN112706047A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/0092—Grinding attachments for lathes or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/02—Frames; Beds; Carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

本发明公开了卡爪修磨装置，包括车床中拖板、滑动设置杂车床中拖板上的车床小拖板、固定安装在车床小拖板上的车床刀架，车床刀架上固定安装有用于三爪卡盘磨削的修磨机构，修磨机构包括电机安装组件、电机、固定安装在电机输出轴上的钻夹头，钻夹头上可拆卸安装有内磨头或碗型砂轮。本发明结构简单、设计合理，通过设置的升降机构实现钻夹头高度位置的调整，内磨头及碗型砂轮的设置，分别对卡爪内圆柱面和卡爪端面进行修磨，修整效果好，精度高，效率高。

Figure 202011597622

The invention discloses a clamping jaw grinding device, comprising a middle carriage of a lathe, a small lathe carriage on the middle carriage of a miscellaneous lathe, and a lathe tool holder fixed on the lathe carriage. For the grinding mechanism for three-jaw chuck grinding, the grinding mechanism includes a motor installation component, a motor, and a drill chuck fixedly installed on the motor output shaft. The drill chuck is detachably installed with an inner grinding head or a bowl-shaped grinding wheel. The invention is simple in structure and reasonable in design. The height and position of the drill chuck can be adjusted through the provided lifting mechanism, and the inner grinding head and the bowl-shaped grinding wheel can be set up to repair and grind the inner cylindrical surface and the end surface of the clamping jaw respectively, and the dressing effect is good. , high precision and high efficiency.

Figure 202011597622

Description

Jack catch grinding device
Technical Field
The invention belongs to the technical field of mechanical equipment, and particularly relates to a jaw grinding device of a self-centering three-jaw chuck.
Background
The three-jaw chuck is a general fixture with higher precision requirement for a common lathe, the precision of the three-jaw chuck directly affects the quality and the production efficiency of a processed workpiece, and after a new chuck is installed on the lathe and used for a period of time, the precision of the new chuck can be gradually reduced, which is particularly characterized in that the end surface of the chuck and a main shaft have verticality deviation; secondly, the inner cylindrical surface of the clamping jaw is eccentric with the axis of the main shaft; thirdly, the inner cylindrical surface of the clamping jaw generates conicity, the outer part is large, the inner part is small, the workpiece moves outwards in the machining process, and the workpiece flies out in serious cases, so that potential safety hazards exist; and fourthly, replacing a new clamping jaw, generating geometric precision errors due to the matching precision problem of the new clamping jaw and the chuck, and having certain influence on the quality of a processed product.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a jaw grinding device which is simple in structure and uniform in grinding.
The invention is realized by the following technical scheme:
the jaw grinding device is characterized in that a grinding mechanism for grinding the three-jaw is fixedly mounted on the lathe tool rest, the grinding mechanism comprises a motor mounting component, a motor and a drill chuck fixedly mounted on an output shaft of the motor, and an inner grinding head or a bowl-shaped grinding wheel is detachably mounted on the drill chuck. The automatic axial and radial feeding motion of the large carriage and the middle carriage of the lathe is utilized for grinding.
Preferably, the motor mounting component comprises a motor mounting plate, a lifting support, a top plate, a bottom plate, a supporting plate and a mounting plate, the lifting support is fixedly connected with the motor mounting plate through a first inner hexagonal countersunk head screw, two ends of the supporting plate are fixedly connected with the corresponding bottom plate and the top plate through a second inner hexagonal countersunk head screw, the mounting plate is fixedly connected with the supporting plate and a lathe tool rest respectively through a third inner hexagonal countersunk head screw and a third inner hexagonal countersunk head screw, the lifting support is connected with the motor mounting plate through a first fastening screw, and a lifting mechanism used for adjusting the height position of the drill chuck is further arranged on the motor mounting component.
Preferably, elevating system includes lifting screw, hand wheel, lifting screw's lower extreme passes through thrust bearing and is connected with the bottom plate, and lifting screw's the body of rod passes lifting support and roof back in proper order and passes through the second holding screw with the hand wheel and link to each other, link to each other through radial ball bearing between lifting screw and the roof.
Preferably, a bearing cover is arranged at the position, corresponding to the thrust bearing, on the bottom plate, and a trapezoidal threaded sleeve is further arranged between the lifting screw and the lifting support.
Preferably, a guide post is arranged between corresponding positions at two ends of the top plate and the bottom plate, and the guide post penetrates through the lifting support and then is fixedly connected with the bottom plate and the top plate respectively.
Preferably, the motor output shaft is sleeved with a connecting taper sleeve, the drill chuck is connected with the motor output shaft through the connecting taper sleeve, and the connecting taper sleeve is fixed with the motor output shaft through a set screw.
Preferably, the motor is fixedly connected with the motor mounting plate through a mounting screw gasket group.
The invention has simple structure and reasonable design, realizes the adjustment of the height position of the drill chuck through the arranged lifting mechanism, and respectively grinds the inner cylindrical surface of the clamping jaw and the end surface of the clamping jaw through the arrangement of the inner grinding head and the bowl-shaped grinding wheel, thereby having good finishing effect, high precision and high efficiency.
Drawings
FIG. 1 is a schematic view of the mounting structure of the present invention;
FIG. 2 is a cross-sectional view taken along the plane A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along the plane B-B in FIG. 1;
FIG. 4 is a block diagram of the present invention with the inner grinding head installed;
FIG. 5 is a view showing the construction of the bowl-shaped grinding wheel according to the present invention after mounting;
in the figure, 1-a lathe middle carriage, 2-a lathe small carriage, 3-a lathe saddle, 4-a motor, 5-a motor output shaft, 6-a drill bit, 7-an inner grinding head, 8-a bowl-shaped grinding wheel, 9-a motor mounting plate, 10-a lifting support, 11-a top plate, 12-a bottom plate, 13-a support plate, 14-a mounting plate, 15-a first inner hexagonal countersunk head screw, 16-a second inner hexagonal countersunk head screw, 17-a third inner hexagonal countersunk head screw, 18-a first set screw, 19-a lifting screw, 20-a hand wheel, 21-a thrust bearing, 22-a second set screw, 23-a radial ball bearing, 24-a bearing cover, 25-a trapezoidal thread sleeve, 26-a guide column, 27-a connecting taper sleeve and 28-a set screw, 29-mounting screw shim set.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings in order to better understand the technical solution.
As shown in fig. 1-5, the jaw grinding device of the present invention is fixedly installed on a tool rest of a lathe, and drives a grinding head or a bowl-shaped grinding wheel to grind a jaw with low precision by utilizing the axial and radial automatic feeding motions of a large dragging plate and a middle dragging plate of the lathe and the rotation of a motor of the jaw grinding device, so that the jaw precision can meet the requirement again.
With continuing reference to fig. 1-3, the motor mounting assembly comprises a motor mounting plate, a lifting bracket, a top plate, a bottom plate, a supporting plate and a mounting plate, wherein the motor is fixedly connected with the motor mounting plate through a mounting screw gasket group, the lifting bracket is fixedly connected with the motor mounting plate through a first inner hexagonal countersunk head screw, two ends of the supporting plate are fixedly connected with the corresponding bottom plate and the top plate through second inner hexagonal countersunk head screws, the mounting plate is respectively fixedly connected with the supporting plate and a lathe tool rest through a third inner hexagonal countersunk head screw and a screw, the lifting bracket is connected with the motor mounting plate through a first set screw, the motor mounting assembly is also provided with a lifting mechanism for adjusting the height position of a drill chuck, the lifting mechanism comprises a lifting screw rod and a hand wheel, the lower end of the lifting screw rod is connected with the bottom plate through a thrust bearing, and a bearing cover, the body of rod of lifting screw passes lifting support and roof in proper order after and passes through the second holding screw with the hand wheel and links to each other, links to each other through radial ball bearing between lifting screw and the roof, still is provided with trapezoidal swivel nut between lifting screw and the lifting support.
In order to realize the stable up-and-down movement of the lifting support, guide posts are arranged between the corresponding positions at the two ends of the top plate and the bottom plate, and the guide posts penetrate through the lifting support and are fixedly connected with the bottom plate and the top plate respectively; in order to reduce the mutual abrasion between the components, a connecting taper sleeve is sleeved on the motor output shaft, the drill chuck is connected with the motor output shaft through the connecting taper sleeve, and the connecting taper sleeve is fixed with the motor output shaft through a fastening screw.
The invention adopts a grinding mode to repair the clamping jaw, the end surface of the clamping jaw is repaired by the bowl-shaped grinding wheel, the inner cylindrical surface of the clamping jaw is repaired by the inner grinding head, the clamping jaw repairing device is arranged on a lathe tool rest, the chuck rotates at a low speed in the repairing process, the inner grinding head or the bowl-shaped grinding wheel rotates at a high speed, and the clamping jaw is repaired by the automatic feeding system of the carriage and the small carriage in the lathe so as to keep uniform grinding and stable feeding.

Claims (7)

1.卡爪修磨装置，包括车床中拖板（1）、滑动设置杂车床中拖板（1）上的车床小拖板（2）、固定安装在车床小拖板（2）上的车床刀架（3），其特征在于所述车床刀架（3）上固定安装有用于三爪卡盘磨削的修磨机构，所述修磨机构包括电机安装组件、电机（4）、固定安装在电机输出轴（5）上的钻夹头（6），所述钻夹头（6）上可拆卸安装有内磨头（7）或碗型砂轮（8）。1. The jaw grinding device, including the middle carriage (1) of the lathe, the small carriage (2) of the lathe set on the middle carriage (1) of the miscellaneous lathe, and the lathe fixedly installed on the small carriage (2) of the lathe The tool holder (3) is characterized in that a grinding mechanism for three-jaw chuck grinding is fixedly installed on the lathe tool holder (3), and the grinding mechanism includes a motor mounting assembly, a motor (4), a fixed installation On the drill chuck (6) on the motor output shaft (5), an inner grinding head (7) or a bowl-shaped grinding wheel (8) is detachably mounted on the drill chuck (6). 2.如权利要求1所述的卡爪修磨装置，其特征在于所述电机安装组件包括电机安装板（9）、升降支架（10）、顶板（11）、底板（12）、支撑板（13）及安装板（14），所述升降支架（10）通过第一内六角沉头螺钉（15）与电机安装板（9）固定连接，所述支撑板（13）的两端通过第二内六角沉头螺钉（16）与对应的底板（12）和顶板（11）固定连接，所述安装板（14）通过第三内六角沉头螺钉（17）和螺钉分别与支撑板（13）及车床刀架（3）固定连接，所述升降支架（10）通过第一紧定螺钉（18）与电机安装板（9）相连，所述电机安装组件上还设置有用于调节钻夹头（6）高度位置的升降机构。2. The jaw grinding device according to claim 1, characterized in that the motor mounting assembly comprises a motor mounting plate (9), a lifting bracket (10), a top plate (11), a bottom plate (12), a support plate ( 13) and the mounting plate (14), the lifting bracket (10) is fixedly connected to the motor mounting plate (9) through the first hexagon socket head countersunk head screw (15), and the two ends of the supporting plate (13) pass through the second The hexagon socket head countersunk head screws (16) are fixedly connected with the corresponding bottom plate (12) and the top board (11), and the mounting plate (14) is respectively connected to the support plate (13) through the third hexagon socket head countersunk head screws (17) and the screws. and the lathe tool holder (3) is fixedly connected, the lifting bracket (10) is connected with the motor mounting plate (9) through the first set screw (18), and the motor mounting assembly is also provided with a drill chuck ( 6) Lifting mechanism at height position. 3.如权利要求2所述的卡爪修磨装置，特征在于所述升降机构包括升降螺杆（19）、手轮（20），所述升降螺杆（19）的下端通过推力轴承（21）与底板（12）连接，升降螺杆（19）的杆体依次穿过升降支架（10）及顶板（11）后与手轮（20）通过第二紧定螺钉（22）相连，所述升降螺杆（19）与顶板（11）之间通过向心球轴承23相连。3. The jaw grinding device according to claim 2, characterized in that the lifting mechanism comprises a lifting screw (19) and a hand wheel (20), and the lower end of the lifting screw (19) is connected with the thrust bearing (21) through a thrust bearing (21). The bottom plate (12) is connected, and the rod body of the lifting screw (19) passes through the lifting bracket (10) and the top plate (11) in turn and is connected with the handwheel (20) through the second set screw (22). The lifting screw (19) ) and the top plate (11) are connected through a radial ball bearing 23. 4.如权利要求3所述的卡爪修磨装置，其特征在于所述底板（12）上对应推力轴承（21）的位置处设置有轴承盖（24），所述升降螺杆（19）与升降支架（10）之间还设置有梯形螺套（25）。4. The jaw grinding device according to claim 3, characterized in that a bearing cover (24) is provided on the bottom plate (12) at a position corresponding to the thrust bearing (21), and the lifting screw (19) is connected to the A trapezoidal screw sleeve (25) is also arranged between the lifting brackets (10). 5.如权利要求2所述的卡爪修磨装置，特征在于所述顶板（11）和底板（12）两端对应位置之间还设置有导向柱（26），导向柱（26）穿过升降支架*（10）后分别与底板（12）和顶板（11）固定连接。5. The jaw grinding device according to claim 2, characterized in that a guide column (26) is further provided between the corresponding positions at both ends of the top plate (11) and the bottom plate (12), and the guide column (26) passes through The lifting bracket* (10) is then fixedly connected to the bottom plate (12) and the top plate (11) respectively. 6.如权利要求1所述的卡爪修磨装置，特征在于所述电机输出轴（5）上套接设置有连接锥套（27），所述钻夹头（6）通过连接锥套（27）与电机输出轴（5）相连，所述连接锥套（27）通过紧定螺钉（28）与电机输出轴（5）固定。6. The jaw grinding device according to claim 1, characterized in that a connecting cone sleeve (27) is sleeved on the motor output shaft (5), and the drill chuck (6) is connected through the connecting cone sleeve (27). 27) is connected to the motor output shaft (5), and the connecting cone sleeve (27) is fixed to the motor output shaft (5) by means of a set screw (28). 7.如权利要求1所述的卡爪修磨装置，其特征在于所述电机（4）通过安装螺钉垫片组（29）与电机安装板（9）固定连接。7 . The jaw grinding device according to claim 1 , wherein the motor ( 4 ) is fixedly connected to the motor mounting plate ( 9 ) through a set of mounting screws and spacers ( 29 ). 8 .
CN202011597622.9A 2020-12-29 2020-12-29 Jack catch grinding device Pending CN112706047A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116728172A (en) * 2023-06-26 2023-09-12 一汽解放汽车有限公司 Jaw self-grinding method, jaw mechanism and grinding machine
CN119319507A (en) * 2024-10-15 2025-01-17 哈尔滨汽轮机厂有限责任公司 Connection method of abrasive belt polishing machine and lathe tool rest

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202659U (en) * 1985-06-26 1986-08-13 姜士俊 Locating and grinding device for coping clamping chuck jaw
CN2130646Y (en) * 1992-03-09 1993-04-28 马弦 Auxiliary grinding head for lathes
JPH07276104A (en) * 1994-03-31 1995-10-24 Obara Riki Kk Installation device of grinding machine on lathe
CN201140357Y (en) * 2007-07-28 2008-10-29 吴金海 Multifunctional grinding wheel special for general lathe
CN205465598U (en) * 2016-02-04 2016-08-17 新疆城轩高新材料有限公司 Fragmentary super -huge work piece bar grinding attachment
CN211490775U (en) * 2020-01-02 2020-09-15 沈阳达丰机械有限公司 Inner hole grinding device for common lathe
CN215147872U (en) * 2020-12-29 2021-12-14 富阳学院 Claw grinding device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85202659U (en) * 1985-06-26 1986-08-13 姜士俊 Locating and grinding device for coping clamping chuck jaw
CN2130646Y (en) * 1992-03-09 1993-04-28 马弦 Auxiliary grinding head for lathes
JPH07276104A (en) * 1994-03-31 1995-10-24 Obara Riki Kk Installation device of grinding machine on lathe
CN201140357Y (en) * 2007-07-28 2008-10-29 吴金海 Multifunctional grinding wheel special for general lathe
CN205465598U (en) * 2016-02-04 2016-08-17 新疆城轩高新材料有限公司 Fragmentary super -huge work piece bar grinding attachment
CN211490775U (en) * 2020-01-02 2020-09-15 沈阳达丰机械有限公司 Inner hole grinding device for common lathe
CN215147872U (en) * 2020-12-29 2021-12-14 富阳学院 Claw grinding device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116728172A (en) * 2023-06-26 2023-09-12 一汽解放汽车有限公司 Jaw self-grinding method, jaw mechanism and grinding machine
CN119319507A (en) * 2024-10-15 2025-01-17 哈尔滨汽轮机厂有限责任公司 Connection method of abrasive belt polishing machine and lathe tool rest

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Application publication date: 20210427

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