CN216325196U

CN216325196U - Electric chuck

Info

Publication number: CN216325196U
Application number: CN202122641733.1U
Authority: CN
Inventors: 雷江松; 朱贤军
Original assignee: Yongkang Leisong Automation Technology Co ltd
Current assignee: Lei Jiangsong; Zhu Xianjun
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-04-19
Anticipated expiration: 2031-11-01

Abstract

The utility model discloses an electric chuck, which comprises a servo motor, a first transmission mechanism connected with the servo motor, a rotating motor, a second transmission mechanism connected with the rotating motor, and a rotating drum, wherein one end of the rotating drum is connected with the second transmission mechanism, and the other end of the rotating drum is connected with a rotating part; a plurality of clamping jaws which are connected with the outer end face of the rotary member in a sliding manner are arranged on the outer end face of the rotary member, and a threaded disc which drives the clamping jaws to clamp or loosen is arranged in the rotary member; the first transmission mechanism is connected with one end of a rotating shaft, and the other end of the rotating shaft penetrates through the rotating drum and then is connected with the threaded disc; and a sensor in communication connection with the servo motor is arranged on the rotating member. Through the mode, the automatic transmission mechanism is simple in structure, can automatically detect that the workpiece to be machined arrives at the machining station through the sensor, then drives the servo motor to act according to the preset procedure, and can continuously drive the workpiece to be machined to rotate after the workpiece to be machined is clamped, so that subsequent machining can be carried out.

Description

Electric chuck

Technical Field

The utility model relates to the technical field of glass processing, in particular to an electric chuck.

Background

With the continuous improvement of the technological level, various intelligent lathes are introduced into various production workshops. The chuck is the most important component on the lathe, and the clamping effect of the chuck directly influences the precision of subsequent workpiece processing. Previously, chucks on lathes have often manually controlled the release or tightening of the jaws, which is complicated and dangerous to operate. Subsequently, various pneumatic chucks and hydraulic chucks have been proposed, but such chucks employing pneumatic or hydraulic driving methods are too costly overall, have a small clamping stroke, and are poorly applicable to numerically controlled machines.

The prior art provides an electric chuck, which includes a chuck body, a spiral disk, a servo motor and a worm gear reducer. The center position department of spiral dish is provided with the connecting rod, and the through-hole has been seted up to the center position department of chuck apron, and the one end of connecting rod passes behind the through-hole and is connected with the output shaft of worm gear speed reducer. The periphery wall of the chuck body is provided with a T-shaped groove, and a clamping jaw is arranged in the T-shaped groove. Although the technology drives the threaded disc to rotate through the servo motor, the threaded disc further drives the clamping jaw to open and close. However, the electric chuck can only clamp the workpiece, and cannot drive the workpiece to rotate continuously after clamping the workpiece.

Therefore, it is necessary to design an electric chuck which has a simple structure, is driven by electric power, can preset clamping force and time, and can drive a workpiece to rotate while clamping the workpiece.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems, the utility model provides the electric chuck which is provided with the sensor and the control device, wherein the sensor can send a starting signal to the control device after detecting that a workpiece to be machined reaches a machining station, and the control device further controls the servo motor to act according to a preset procedure, so that the workpiece is clamped according to a preset force; in addition, the rotating motor can continuously drive the workpiece to be machined to rotate after the workpiece to be machined is clamped, so that subsequent machining can be carried out.

In order to achieve the purpose, the utility model adopts the technical scheme that:

an electric chuck comprises a servo motor, a first transmission mechanism connected with the servo motor, a rotating motor, a second transmission mechanism connected with the rotating motor, and a rotary drum, wherein one end of the rotary drum is connected with the second transmission mechanism, and the other end of the rotary drum is connected with a rotary part;

a plurality of clamping jaws which are connected with the outer end face of the rotary member in a sliding manner are arranged on the outer end face of the rotary member, and a threaded disc which drives the clamping jaws to clamp or loosen is arranged in the rotary member;

the first transmission mechanism is connected with one end of a rotating shaft, and the other end of the rotating shaft penetrates through the rotating drum and then is connected with the threaded disc;

and a sensor in communication connection with the servo motor is arranged on the rotating member.

Further, the servo motor is arranged below the mounting frame along the horizontal direction, and the first transmission mechanism comprises a first incomplete gear connected with the output end of the servo motor, a second gear meshed with the first incomplete gear, a transmission shaft with one end connected with the second gear, and a coupling assembly arranged at the other end of the transmission shaft;

the coupling assembly is connected with one end, close to the servo motor, of the rotating shaft so as to drive the rotating shaft to rotate.

Further, the shaft coupling subassembly including set up in being close to of transmission shaft the third gear of the one end of pivot, set up in being close to of pivot the fourth gear of the one end of transmission shaft and cover are located the shaft coupling cover of the periphery wall of third gear and fourth gear, the internal perisporium of shaft coupling cover be provided with respectively with the internal thread of third gear and fourth gear engagement.

Further, the rotating motor is arranged above the mounting rack along the horizontal direction, and the second transmission mechanism comprises a fifth gear connected with the output end of the rotating motor and a sixth gear meshed with the fifth gear; the sixth gear is coaxial with the rotating shaft and is used for the rotating shaft to pass through, and the sixth gear is connected with one end of the rotating drum close to the rotating motor so as to drive the rotating drum to rotate.

Furthermore, an installation box is arranged on the installation frame, a through hole for the rotary drum to pass through is formed in the installation box, and first bearings are arranged at the joints of the rotary drum and the two ends of the through hole.

Furthermore, the rotating part comprises a rotating disc connected with one end of the rotating drum far away from the rotating motor and a rotating cover covered on the rotating disc, and one end of the rotating cover close to the rotating disc is provided with a mounting groove for accommodating the threaded disc.

Further, the threaded disc comprises an inner ring and an outer ring, and the inner ring is sleeved on the outer peripheral wall of one end, close to the rotating member, of the rotating shaft; the mounting groove is internally provided with a columnar structure, the outer ring is sleeved on the peripheral wall of the columnar structure, and a second bearing is arranged at the joint of the outer ring and the columnar structure.

Further, a plurality of slide ways are evenly arranged on the outer end face of the rotary cover along the circumferential direction, the slide ways extend along the radial direction of the rotary cover, sliding protrusions are arranged on two sides of the slide ways, and sliding grooves used for containing the sliding protrusions are arranged on two sides of the clamping jaws.

Furthermore, a third transmission mechanism connected with the clamping jaw is arranged on the threaded disc to drive the clamping jaw to move in the slide way.

Furthermore, the servo motor and the sensor are both in communication connection with a control device.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the electric chuck, the sensor and the control device are arranged, the sensor can automatically send a starting signal to the control device after detecting that a workpiece to be machined reaches a machining station, and the control device further controls the servo motor to act according to a preset procedure, so that the clamping jaws are driven to clamp the workpiece according to preset force; in addition, the rotating motor can continuously drive the workpiece to be machined to rotate after the workpiece to be machined is clamped, so that subsequent machining can be carried out.

2. According to the electric chuck, the servo motor is adopted to drive the threaded disc to rotate, the threaded disc further drives the clamping jaws to clamp or open through the third transmission mechanism, the rotation time, the rotation direction and the rotation speed of the servo motor can be preset through the control device, the clamping force of the clamping jaws and the time required by the opening or clamping of the clamping jaws are further controlled, and intelligent and accurate machining is achieved.

Drawings

FIG. 1 is a schematic structural view of a power chuck of the present invention;

FIG. 2 is a front schematic view of the power chuck of the present invention;

FIG. 3 is an exploded schematic view of the power chuck of the present invention;

FIG. 4 is a schematic cross-sectional view taken along A-A of FIG. 2;

FIG. 5 is a schematic view of the construction of the rotary cap of the power chuck of the present invention;

the parts in the drawings are numbered as follows: 10. a servo motor; 20. a first transmission mechanism; 21. a first incomplete gear; 22. a second gear; 23. a drive shaft; 30. a coupling assembly; 31. a third gear; 32. a fourth gear; 33. a coupling sleeve; 40. a rotating shaft; 50. rotating the motor; 60. a second transmission mechanism; 61. a fifth gear; 62. a sixth gear; 70. a rotating drum; 71. a first bearing; 80. a rotating member; 81. a turntable; 82. rotating the cover; 821. a slideway; 822. a columnar structure; 90. a claw; 110. a mounting frame; 111. installing a box; 120. a threaded disc; 121. a second bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.

In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Example 1

As shown in fig. 1 to 3, an electric chuck 100 includes a servo motor 10, a first transmission mechanism 20 connected to the servo motor 10, a rotation motor 50, a second transmission mechanism 60 connected to the rotation motor 50, and a drum 70 having one end connected to the second transmission mechanism 60 and the other end connected to a rotary member 80. The servo motor 10 is horizontally arranged below the mounting frame 110, and the rotating motor 50 is horizontally arranged above the mounting frame 110, so that the overall size of the device is prevented from being too large.

The outer end face of the rotating member 80 is provided with a plurality of clamping jaws 90 connected with the rotating member in a sliding manner, and the rotating member 80 is internally provided with a threaded disc 120 for driving the plurality of clamping jaws 90 to clamp or loosen. The first transmission mechanism 20 is connected to one end of the rotating shaft 40, and the other end of the rotating shaft 40 passes through the rotating cylinder 70 and is connected to the threaded disc 120 to drive the threaded disc 120 to rotate.

A sensor is provided on the rotary member 80 to detect whether the workpiece has reached the clamping station. The servo motor 10 and the sensor are both in communication connection with the control device, and the control device controls the servo motor 10 to act according to signals detected by the sensor. Particularly, the rotation time, the rotation direction and the rotation speed of the servo motor 10 can be preset through a control device, so that the clamping force of the clamping jaw 90 and the time required by the opening or clamping of the clamping jaw 90 are controlled, and intelligent and accurate processing is realized.

With the arrangement, when the sensor detects that the workpiece to be machined reaches the machining station, the sensor automatically sends a starting signal to the control device, and the control device further controls the servo motor 10 to act according to the preset procedure. The servo motor 10 drives the threaded disc 120 to rotate through the first transmission mechanism 20 and the rotating shaft 40, and further drives the clamping jaws 90 to clamp the workpiece according to a preset force; in addition, the rotating motor 50 can continue to drive the workpiece to be processed to rotate through the second transmission mechanism 60 and the rotary drum 70 after the workpiece to be processed is clamped, so as to perform subsequent processing.

As shown in fig. 3 to 4 in conjunction with fig. 1, in some embodiments, the first transmission mechanism 20 includes a first incomplete gear 21 connected to an output end of the servo motor 10, a second gear 22 engaged with the first incomplete gear 21, a transmission shaft 23 having one end connected to the second gear 22, and a coupling assembly 30 disposed at the other end of the transmission shaft 23. The first incomplete gear 21 can control the interval time of the output torque of the servo motor 10, so as to change the execution stroke of the follow-up action. The first incomplete gear 21 and the second incomplete gear 22 are arranged along the vertical direction, and the transmission shaft 23 is coaxially connected with the second incomplete gear 22, so that the transmission shaft 23 is positioned above the servo motor 10, and the overall length of the device is shortened. The coupling assembly 30 is connected to an end of the rotary shaft 40 adjacent to the servo motor 10 to drive the rotary shaft 40 to rotate. By arranging the coupling assembly 30, when the rotating shaft 40 is driven by other driving parts to rotate, the coupling assembly 30 is removed, and the rotating shaft 40 is ensured not to drive the driving end of the servo motor 10 to rotate.

So set up, servo motor 10 drives first incomplete gear 21 and rotates, and first incomplete gear 21 rotates and then drives second gear 22 with it meshing and rotates, and second gear 22 drives transmission shaft 23 and rotates, and transmission shaft 23 then drives pivot 40 through coupling assembly 30 and rotates.

As shown in fig. 3 to 4 in combination with fig. 1, in some embodiments, the coupling assembly 30 includes a third gear 31 disposed at an end of the transmission shaft 23 close to the rotation shaft 40, a fourth gear 32 disposed at an end of the rotation shaft 40 close to the transmission shaft 23, and a coupling sleeve 33 sleeved on outer peripheral walls of the third gear 31 and the fourth gear 32. The transmission shaft 23 is coaxially arranged with the rotating shaft 40, and the inner peripheral wall of the coupling sleeve 33 is provided with internal threads meshed with the third gear 31 and the fourth gear 32 respectively.

So configured, the transmission shaft 23 drives the third gear 31 to rotate, the third gear 31 in turn drives the coupling sleeve 33 to rotate, the coupling sleeve 33 drives the fourth gear 32 to rotate, and the fourth gear 32 in turn drives the rotating shaft 40 to rotate.

As shown in fig. 3 to 4 in conjunction with fig. 1, in some embodiments, the second transmission mechanism 60 includes a fifth gear 61 connected to an output end of the rotating motor 50, and a sixth gear 62 engaged with the fifth gear 61. The fifth gear 61 and the sixth gear 62 are arranged in the vertical direction, and the sixth gear 62 is located right below the fifth gear 61 and is arranged coaxially with the rotating shaft 40. A through hole for the rotating shaft 40 to pass through is arranged at the middle position of the sixth gear 62, and the rotating shaft 40 is not in contact with the sixth gear 62. The sixth gear 62 is connected to an end of the drum 70 adjacent to the rotation motor 50 to drive the drum 70 to rotate. Particularly, the mounting frame 110 is provided with a mounting box 111, the mounting box 111 is provided with a through hole for the drum 70 to pass through, and the joints between the drum 70 and the two ends of the through hole are provided with the first bearings 71, so as to ensure the stability of the rotation of the drum 70.

So configured, the rotating motor 50 drives the fifth gear 61 to rotate, the fifth gear 61 further drives the sixth gear 62 to rotate, and the sixth gear 62 further drives the drum 70 to rotate.

As shown in fig. 3 to 5, in some embodiments, the rotating member 80 includes a rotating plate 81 connected to an end of the drum 70 remote from the rotating motor 50, and a rotating cover 82 covering the rotating plate 81. The rotary disc 81 and the rotary cover 82 are connected through connecting pieces such as bolts, and the two are conveniently detached. An end of the rotary cover 82 adjacent to the rotary disk 81 is provided with a mounting groove for receiving the threaded disk 120, so that the threaded disk 120 rotates in the mounting groove.

Specifically, the threaded disk 120 includes an inner ring and an outer ring, which are coaxially disposed and connected by a plurality of connecting ribs. The inner ring is sleeved on the outer peripheral wall of one end of the rotating shaft 40 close to the rotating member 80 and connected with the rotating shaft 40 through a connecting key, so that the rotating shaft 40 drives the threaded disc 120 to rotate in the rotating member 80. Be provided with column structure 822 in the mounting groove, the periphery wall of column structure 822 is located to the outer loop cover, and the junction of outer loop and column structure 822 is provided with second bearing 121, guarantees the pivoted stability of thread disc 120.

As shown in fig. 3 to 5, in some embodiments, a plurality of sliding ways 821 are uniformly arranged on the outer end surface of the rotating cover 82 along the circumferential direction, the sliding ways 821 are arranged in three groups, and the included angle between two adjacent sliding ways 821 is 120 °. The slide 821 is provided in a strip-shaped configuration and extends in a radial direction of the rotary cover 82 to ensure that the claws 90 approach or separate from each other with respect to the same origin. Sliding protrusions are arranged on two sides of the slide way 821, and sliding grooves for accommodating the sliding protrusions are arranged on two sides of the clamping jaw 90, so that the clamping jaw 90 can slide back and forth in the slide way 821.

In particular, the threaded disc 120 is provided with a third transmission mechanism (not shown) connected to the jaws 90 to drive the jaws 90 in the slide 821. The third transmission mechanism is a driving mechanism which is commonly used for driving the clamping jaws to move in the three-jaw chuck in the prior art. For example, a flat thread is provided on the threaded disc 120 and a drive thread is provided on the end of the pawl 90 adjacent the threaded disc 120 that engages the flat thread. As the threaded disc 120 rotates, the threaded disc 120 expands or contracts relative to the same origin with the drive threaded drive dog 90 through the engaged planar threads.

The following describes a specific operation of the apparatus:

when the sensor detects that the workpiece to be processed reaches the processing station, a starting signal is automatically sent to the control device, and the control device further controls the servo motor 10 to act according to a preset procedure. The servo motor 10 drives the first incomplete gear 21 to rotate, the first incomplete gear 21 rotates to drive the second gear 22 engaged therewith to rotate, the second gear 22 drives the transmission shaft 23 to rotate, and the transmission shaft 23 further drives the rotating shaft 40 to rotate through the coupling assembly 30. Subsequently, the spindle 40 drives the threaded disc 120 to rotate, and the threaded disc 120 drives the clamping jaws to clamp the workpiece through the third transmission mechanism. When the sensor detects that the jaws are clamped, it automatically sends a signal to the control device, which controls the servo motor 10 to stop and the rotary motor 50 to be turned on. The rotation motor 50 drives the fifth gear 61 to rotate, the fifth gear 61 further drives the sixth gear 62 to rotate, and the sixth gear 62 further drives the drum 70 to rotate. The drum 70 then rotates the workpiece clamped by the jaws.

The above description is only for the purpose of illustrating the technical solutions of the present invention and is not intended to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the utility model, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electric chuck, characterized by comprising a servo motor (10), a first transmission mechanism (20) connected with the servo motor (10), a rotating motor (50), a second transmission mechanism (60) connected with the rotating motor (50), and a rotating drum (70) with one end connected with the second transmission mechanism (60) and the other end connected with a rotating member (80);

a plurality of clamping jaws (90) in sliding connection with the outer end face of the rotary member (80) are arranged on the outer end face of the rotary member (80), and a threaded disc (120) for driving the clamping jaws (90) to clamp or loosen is arranged in the rotary member (80);

the first transmission mechanism (20) is connected with one end of a rotating shaft (40), and the other end of the rotating shaft (40) penetrates through the rotary drum (70) and then is connected with the threaded disc (120);

and a sensor in communication connection with the servo motor (10) is arranged on the rotating member (80).

2. The power chuck according to claim 1, wherein the servo motor (10) is horizontally disposed below the mounting bracket (110), and the first transmission mechanism (20) includes a first incomplete gear (21) connected to an output end of the servo motor (10), a second gear (22) engaged with the first incomplete gear (21), a transmission shaft (23) having one end connected to the second gear (22), and a coupling assembly (30) disposed at the other end of the transmission shaft (23);

the coupling assembly (30) is connected with one end, close to the servo motor (10), of the rotating shaft (40) so as to drive the rotating shaft (40) to rotate.

3. The electric chuck according to claim 2, wherein the coupling assembly (30) comprises a third gear (31) disposed at one end of the transmission shaft (23) close to the rotation shaft (40), a fourth gear (32) disposed at one end of the rotation shaft (40) close to the transmission shaft (23), and a coupling sleeve (33) sleeved on outer peripheral walls of the third gear (31) and the fourth gear (32), wherein inner peripheral walls of the coupling sleeve (33) are provided with inner threads respectively engaged with the third gear (31) and the fourth gear (32).

4. The power chuck according to claim 2, wherein the rotating motor (50) is horizontally disposed above the mounting bracket (110), and the second transmission mechanism (60) includes a fifth gear (61) connected to an output end of the rotating motor (50), and a sixth gear (62) engaged with the fifth gear (61); the sixth gear (62) is coaxially arranged with the rotating shaft (40) and is used for the rotating shaft (40) to pass through, and the sixth gear (62) is connected with one end of the rotating drum (70) close to the rotating motor (50) so as to drive the rotating drum (70) to rotate.

5. The electric chuck according to claim 4, characterized in that the mounting frame (110) is provided with a mounting box (111), the mounting box (111) is provided with a through hole for the rotation cylinder (70) to pass through, and the connection between the rotation cylinder (70) and the two ends of the through hole is provided with a first bearing (71).

6. The power chuck according to claim 1, wherein the rotating member (80) comprises a rotating disc (81) connected to an end of the rotating drum (70) far from the rotating motor (50), and a rotating cover (82) covering the rotating disc (81), and an end of the rotating cover (82) near the rotating disc (81) is provided with a mounting groove for receiving the threaded disc (120).

7. The power chuck according to claim 6, wherein the threaded disc (120) comprises an inner ring and an outer ring, the inner ring is sleeved on the outer peripheral wall of the end of the rotating shaft (40) close to the rotating member (80); be provided with columnar structure (822) in the mounting groove, the outer loop cover is located the periphery wall of columnar structure (822), the outer loop with the junction of columnar structure (822) is provided with second bearing (121).

8. The electric chuck according to claim 6, characterized in that the outer end surface of the rotating cover (82) is uniformly provided with a plurality of sliding ways (821) along the circumferential direction, the sliding ways (821) extend along the radial direction of the rotating cover (82) and are provided with sliding protrusions at two sides of the sliding ways (821), and the clamping jaws (90) are provided with sliding grooves at two sides for accommodating the sliding protrusions.

9. The power chuck according to claim 8, characterized in that the threaded disk (120) is provided with a third transmission mechanism connected with the jaws (90) to drive the jaws (90) to move in the slideway (821).

10. The power chuck according to claim 1, characterized in that the servomotor (10) and the sensor are both connected in communication with a control device.