阅读说明：本技术 环件胀形用上下料装置及方法 (Feeding and discharging device and method for ring expansion ) 是由 秦伟超 谷瑞杰 杜学斌 任明杰 马辉 于 2021-08-12 设计创作，主要内容包括：本发明提供了环件胀形用上下料装置及方法,包括基座,基座上安装有旋转升降构件,在旋转升降构件上设有用于夹放目标环件的对中夹具,其中旋转升降构件沿基座上下升降并带动对中夹具升起或下降,且旋转升降构件可带动对中夹具旋转。导向架与底座分离设计,便于拆装维护；钳爪的V形部分只起对中作用,靠钳爪底部的承重板承重,减小对热环件表面的破坏和尺寸的影响；对不同规格的环件,无需更换夹钳,只更换钳爪下相应的承重板即可；钳爪可以自动升降和旋转,并可实现同步对中,定位精度高,提高环件胀形的生产效率。(The invention provides a feeding and discharging device and method for ring bulging, which comprises a base, wherein a rotary lifting member is arranged on the base, a centering clamp for clamping a target ring is arranged on the rotary lifting member, the rotary lifting member is lifted up and down along the base and drives the centering clamp to lift or lower, and the rotary lifting member can drive the centering clamp to rotate. The guide frame and the base are designed separately, so that the disassembly, assembly and maintenance are convenient; the V-shaped part of the clamp claw only plays a centering role and bears the load by the bearing plate at the bottom of the clamp claw, so that the damage to the surface of the hot ring part and the influence on the size are reduced; for ring pieces with different specifications, the clamp does not need to be replaced, and only the corresponding bearing plate below the clamp claw needs to be replaced; the clamp jaws can automatically lift and rotate, synchronous centering can be realized, the positioning precision is high, and the production efficiency of ring bulging is improved.)

1. Ring piece bulging is with loading and unloading device, its characterized in that: the device comprises a base, wherein a rotary lifting component is arranged on the base, a centering fixture for clamping a target ring piece (21) is arranged on the rotary lifting component, the rotary lifting component is lifted up and down along the base and drives the centering fixture to lift or descend, and the rotary lifting component can drive the centering fixture to rotate.

2. The loading and unloading device for ring bulging according to claim 1, wherein: the centering fixture comprises a jaw seat (9), the middle section of the jaw seat (9) is fixedly connected to a rotary lifting component, two end parts of the jaw seat (9) are suspended and keep horizontal balance, one end part of the jaw seat is provided with a balance weight (10), the other end part of the jaw seat extends to form a support (25), a centering oil cylinder (11) and a centering guide shaft (13) which are parallel to each other are arranged in the support (25), a displacement sensor is arranged in the centering oil cylinder (11), two clamping pieces are slidably sleeved on the centering guide shaft (13), and one clamping piece is fixedly connected to the end of a piston rod of the centering oil cylinder (11);

the support (25) is further provided with a centering transmission part located between the two clamping pieces, the centering transmission part drives the two clamping pieces to move synchronously in the opposite directions or synchronously back to back along the centering guide shaft (13) under the driving of the centering oil cylinder (11), and the two clamping pieces are always arranged symmetrically relative to the centering transmission part.

3. The loading and unloading device for ring bulging according to claim 2, wherein: the two clamping pieces are respectively a left clamping piece and a right clamping piece, the left clamping piece comprises a left sliding block (23) which is sleeved on a centering guide shaft (13) in a sliding mode and is fixedly connected to the piston rod end of a centering oil cylinder (11), and further comprises a left claw (12) which is fixedly connected to the left sliding block (23), the right clamping piece comprises a right sliding block (24) which is sleeved on the centering guide shaft (13) in a sliding mode, and further comprises a right claw (18) which is fixedly connected to the right sliding block (24), the two claws are opposite to each other, and a bearing plate used for lifting a target ring piece (21) is detachably mounted at the bottom of each claw.

4. The feeding and blanking device for ring bulging according to claim 3, wherein: the centering transmission part comprises a centering gear (15) arranged on the bracket (25) and two centering racks (14) which are parallel to each other and are meshed with the centering gear (15), wherein the end part of one centering rack (14) is fixedly connected to the left sliding block (23), and the end part of the other centering rack (14) is fixedly connected to the right sliding block (24);

the two centering racks (14) are parallel to the centering oil cylinder (11) or the centering guide shaft (13);

the two clamping elements are always arranged symmetrically with respect to the centering gear (15).

5. The feeding and blanking device for ring bulging according to claim 3 or 4, wherein: the left jaw (12) and the right jaw (18) are of the same structure and respectively comprise a back plate, the upper side edge and the lower side edge of the back plate are respectively provided with a V-shaped plate of the same structure, the openings of the two V-shaped plates of the same back plate face the same direction, and a cavity formed by the back plate and the two V-shaped plates is used for clamping a target ring piece (21);

the bottom plate surface of the V-shaped plate at the lower side edge of each back plate is detachably provided with a plurality of bearing plates with different weights.

6. The loading and unloading device for ring bulging according to claim 2, wherein: the base comprises a base (1), a guide frame (2) is installed on the base (1), a rotary lifting component is arranged on the guide frame (2), the rotary lifting component comprises lifting oil cylinders (3) which are uniformly distributed around the guide frame (2) and are internally provided with displacement sensors, cylinder barrels of the lifting oil cylinders (3) are connected to the guide frame (2), piston rod ends of the lifting oil cylinders (3) are fixedly connected with lifting frames (4), and the lifting frames (4) are located at the top of the guide frame (2);

a slewing bearing (5) is arranged on the lifting frame (4), and the slewing bearing (5) is fixedly connected to a jaw seat (9) through a connecting disc (8);

the lifting frame (4) is also provided with a speed reducing motor (6), an output shaft of the speed reducing motor (6) is sleeved with a rotary gear (7), and the rotary gear (7) is meshed with the rotary support (5).

7. The feeding and blanking device for ring bulging according to claim 6, wherein: the frame body of crane (4) downwardly extending forms the cursor slide, and the surface mounting of cursor slide has direction backing plate (20), installs in leading truck (2) and supplies the cursor slide embedding and lift guide (19) that slides from top to bottom.

8. The feeding and blanking method for ring bulging is characterized by comprising the following steps:

the ring expanding feeding and discharging device at least comprises the ring expanding feeding and discharging device as claimed in any one of claims 1 to 7, and comprises the following specific steps:

the heated target ring piece (21) is placed on a material taking platform;

the centering clamp clamps a target ring piece (21);

the centering clamp is driven to ascend by rotating the lifting component, and the target ring piece (21) is vertically separated from the material taking platform;

the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece (21) rotates to a position above a central station of the bulging machine (22);

the centering fixture is driven to descend by rotating the lifting component, and the target ring piece (21) vertically descends to a central station of the expanding machine (22);

loosening the target ring member (21) by the centering jig;

starting bulging of the target ring member (21);

after the bulging is finished, the centering clamp clamps a target ring piece (21);

the centering clamp is driven to ascend by rotating the lifting component, and the target ring piece (21) is vertically separated from the bulging machine (22);

the rotary lifting component drives the centering clamp to rotate, and the target ring piece (21) is rotated above the discharging platform;

the centering clamp is driven to descend by rotating the lifting component, and the target ring piece (21) vertically descends to the discharging platform;

loosening the target ring member (21) by the centering jig;

the centering clamp is driven to ascend by rotating the lifting component, and the target ring piece (21) is vertically separated from the discharging platform;

the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece (21) rotates to the material taking platform;

clamping off a target ring (21);

thus, a feeding and discharging cycle is completed.

Technical Field

The invention belongs to the field of ring hot processing, and particularly relates to a feeding and discharging device and method for ring bulging.

Background

At present, in the production of ring bulging, the feeding and discharging process of the ring generally adopts a manual operation mode.

The traditional feeding and discharging mode has the following technical defects:

1. the manual operation is time-consuming, the surface of the ring piece is easy to collide and scratch, the temperature of the ring piece is high, the diameter of the ring piece is large, the personal safety of operators is influenced, and quality accidents and safety accidents are easy to happen; or a mechanical arm forklift is needed, but the clamping force cannot be controlled, and the ring piece is easy to deform and the surface of the ring piece is easy to scratch due to overlarge clamping force;

2. the existing hoisting positioning precision is poor.

Disclosure of Invention

The invention aims to provide a feeding and discharging device and a feeding and discharging method for ring expansion, which aim to overcome the technical defects.

In order to solve the technical problems, the invention provides a feeding and discharging device for ring bulging, which comprises a base, wherein a rotary lifting member is arranged on the base, a centering clamp for clamping a target ring is arranged on the rotary lifting member, the rotary lifting member is lifted up and down along the base and drives the centering clamp to lift or descend, and the rotary lifting member can drive the centering clamp to rotate.

Furthermore, the centering fixture comprises a jaw seat, the middle section of the jaw seat is fixedly connected to the rotary lifting member, two end parts of the jaw seat are suspended and kept horizontally balanced, one end part of the jaw seat is provided with a balance weight, the other end part of the jaw seat extends to form a support, a centering oil cylinder and a centering guide shaft which are parallel to each other are arranged in the support, a displacement sensor is arranged in the centering oil cylinder, two clamping pieces are slidably sleeved on the centering guide shaft, and one clamping piece is fixedly connected to the piston rod end of the centering oil cylinder;

the support is also provided with a centering transmission part positioned between the two clamping pieces, the centering transmission part drives the two clamping pieces to synchronously move in the opposite directions or synchronously move in the opposite directions along the centering guide shaft under the driving of the centering oil cylinder, and the two clamping pieces are always arranged symmetrically relative to the centering transmission part.

Furthermore, two holders are left holder and right holder respectively, and left holder includes that the slip suit is on the centering guiding axle and the left slider of rigid coupling in the tailpiece of the piston rod of centering hydro-cylinder, still includes the left claw of rigid coupling in left slider, and right holder includes that the slip suit is on the epaxial right slider of centering guiding, still includes the right claw of rigid coupling in right slider, and two claws are relative and establish and install the bearing plate that is used for lifting target ring spare in the bottom detachably of every claw.

Furthermore, the centering transmission part comprises a centering gear arranged on the bracket and two centering racks which are parallel to each other and are meshed with the centering gear, wherein the end part of one centering rack is fixedly connected to the left sliding block, and the end part of the other centering rack is fixedly connected to the right sliding block;

the two centering racks are parallel to the centering oil cylinder or the centering guide shaft;

the two clamping pieces are always symmetrically arranged about the centering gear.

Preferably, the left jaw and the right jaw have the same structure and both comprise a back plate, the upper side and the lower side of the back plate are respectively provided with a V-shaped plate with the same structure, the openings of the two V-shaped plates of the same back plate face the same direction, and a cavity formed by the back plate and the two V-shaped plates is used for clamping a target ring piece;

the bottom plate surface of the V-shaped plate at the lower side edge of each back plate is detachably provided with a plurality of bearing plates with different weights.

Furthermore, the base comprises a base, a guide frame is arranged on the base, a rotary lifting component is arranged on the guide frame and comprises lifting oil cylinders which are uniformly distributed around the guide frame and are internally provided with displacement sensors, cylinder barrels of the lifting oil cylinders are connected to the guide frame, and piston rod ends of the lifting oil cylinders are fixedly connected with lifting frames, wherein the lifting frames are positioned at the top of the guide frame;

the lifting frame is provided with a slewing bearing, and the slewing bearing is fixedly connected to the jaw seat through a connecting disc;

the lifting frame is also provided with a gear motor, an output shaft of the gear motor is sleeved with a rotary gear, and the rotary gear is meshed with the rotary support.

Furthermore, the frame body of the lifting frame extends downwards to form a sliding arm, a guide base plate is arranged on the surface of the sliding arm, a lifting guide rail for the sliding arm to be embedded and slide up and down is arranged in the guide frame, and a guide base plate is arranged in the lifting guide rail.

The invention also protects a feeding and discharging method for ring bulging, which at least comprises a feeding and discharging device for ring bulging, and the method comprises the following steps:

placing the heated target ring piece on a material taking platform;

clamping the target ring piece by using a centering clamp;

the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece is vertically separated from the material taking platform;

the rotary lifting component drives the centering fixture to rotate, and the target ring piece rotates to a position above a central station of the bulging machine;

the centering fixture is driven to descend by rotating the lifting component, and the target ring piece vertically descends to a central station of the bulging machine;

loosening the target ring piece by the centering clamp;

starting bulging of the target ring piece;

after the bulging is finished, the centering clamp clamps the target ring piece;

rotating the lifting member to drive the centering fixture to ascend, and vertically separating the target ring piece from the bulging machine;

the rotary lifting component drives the centering clamp to rotate, and the target ring piece is rotated above the discharging platform;

the centering clamp is driven to descend by rotating the lifting member, and the target ring piece vertically descends to the unloading platform;

loosening the target ring piece by the centering clamp;

the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece is vertically separated from the discharging platform;

the rotary lifting component drives the centering clamp to rotate, and the target ring piece rotates to the material taking platform;

clamping the next target ring;

thus, a feeding and discharging cycle is completed.

The invention has the following beneficial effects:

(1) the centering fixture can automatically lift and rotate, synchronous centering can be realized, the positioning precision is high, and the production efficiency of feeding and discharging of the ring bulging is improved; for ring pieces with different specifications, the clamp claws do not need to be replaced, and only the corresponding bearing plates below the clamp claws need to be replaced, so that the adaptability is strong, and the manual operation is reduced.

(2) And displacement sensors are arranged in the lifting oil cylinder and the centering oil cylinder, so that the ring piece is accurately positioned.

(3) The bearing plate at the bottom of the clamp claw is used for supporting the ring piece, so that the damage to the surface of the hot ring piece and the influence on the size of the hot ring piece are reduced.

In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is an isometric view of a feeding and blanking device for ring bulging.

Fig. 2 is a bottom view of the feeding and blanking device for ring bulging.

Fig. 3 is a plan view of the feeding and discharging device for ring bulging.

Fig. 4 is a diagram of the application of the feeding and blanking device for ring bulging.

Fig. 5 is a flow chart of the feeding and discharging device for ring expansion.

Description of reference numerals:

1. a base; 2. a guide frame; 3. a lift cylinder; 4. a lifting frame; 5. a slewing bearing; 6. a reduction motor; 7. a rotary gear; 8. a connecting disc; 9. a jaw seat; 10. balancing weight; 11. centering the oil cylinder; 12. a left jaw; 13. centering the guide shaft; 14. centering the rack; 15. a centering gear; 16. a first bearing plate; 17. a second bearing plate; 18. a right jaw; 19. a lifting guide rail; 20. a guide backing plate; 21. a ring member; 22. a bulging machine; 23. a left slider; 24. a right slider; 25. and (4) a bracket.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

In the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the ring bulging material feeding and discharging device described in the present specification.

The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.

Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

The first embodiment:

the embodiment relates to a feeding and discharging device for ring bulging, which comprises a base, wherein a rotary lifting component is mounted on the base, a centering fixture for clamping a target ring 21 is arranged on the rotary lifting component, the rotary lifting component vertically lifts along the base and drives the centering fixture to lift or lower, and the rotary lifting component can drive the centering fixture to rotate.

The centering jig functions to grip or release the target ring member 21 while ensuring centering of the target ring member 21 at the time of gripping.

The rotating and lifting member is used for driving the centering fixture to ascend or descend and driving the centering fixture to rotate, the centering fixture can ascend and descend simultaneously, rotate only, or ascend and descend only, and rotate only, and the final purpose is to convey the target ring 21 to a destination, and referring to fig. 5, the target ring 21 is loaded and unloaded in the following process:

the heated target ring piece 21 is placed on a material taking platform;

clamping the target ring piece 21 by the centering clamp;

the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece 21 is vertically separated from the material taking platform;

the rotary lifting component drives the centering fixture to rotate, and the target ring piece 21 rotates to a position above a central station of the bulging machine 22;

the centering fixture is driven to descend by rotating the lifting component, and the target ring piece 21 vertically descends to the central station of the bulging machine 22;

the centering fixture loosens the target ring member 21;

the target ring member 21 starts bulging;

after the bulging is finished, the centering fixture clamps the target ring piece 21;

the centering clamp is driven to ascend by rotating the lifting component, and the target ring piece 21 is vertically separated from the bulging machine 22;

the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece 21 is rotated above the discharging platform;

the centering clamp is driven to descend by rotating the lifting member, and the target ring piece 21 vertically descends to the unloading platform;

the centering fixture loosens the target ring member 21;

the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece 21 is vertically separated from the discharging platform;

the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece 21 rotates to the material taking platform;

clamping off a next target ring 21;

thus, a feeding and discharging cycle is completed.

The above-mentioned feeding and discharging process can be illustrated, the centering fixture is mainly continuously circulated according to the sequence of the material taking platform, the expanding machine 22 and the discharging platform until the expanding of all ring pieces is completed, and the lifting and rotating of the centering fixture can be automatically realized, wherein the rotating means rotating in a horizontal plane at a certain height.

Referring to fig. 1, the centering fixture includes a jaw seat 9, a middle section of the jaw seat 9 is fixedly connected to the rotary lifting member, two end portions of the jaw seat 9 are suspended and keep horizontal balance, one end portion is provided with a counterweight 10, the other end portion extends to form a support 25, a centering oil cylinder 11 and a centering guide shaft 13 which are parallel to each other are arranged in the support 25, a displacement sensor is arranged in the centering oil cylinder 11, two clamping members are slidably sleeved on the centering guide shaft 13, and one of the clamping members is fixedly connected to a piston rod end of the centering oil cylinder 11.

Since the gripping rings have a certain weight, the counterweight 10 needs to be equipped to ensure the balance of the gripping and moving process.

The centering cylinder 11 is provided with a displacement sensor therein, which aims to ensure accurate displacement of the piston rod and further to achieve accurate positioning of the ring member, and the centering cylinder 11 herein may be a common cylinder, and is named as a centering cylinder because it plays a role in centering in the present embodiment.

The number of the centering guide shafts 13 may be 1, or 2 as shown in fig. 1, preferably 2 centering guide shafts 13 may improve stability in the sliding process, and may also improve rigidity, and the specific number is not limited, and may be set according to actual needs.

The bracket 25 is also provided with a centering transmission part positioned between the two clamping pieces, the centering transmission part drives the two clamping pieces to synchronously move in the same direction or synchronously move in the opposite direction along the centering guide shaft 13 under the driving of the centering oil cylinder 11, and the two clamping pieces are always arranged symmetrically relative to the centering transmission part.

Specifically, the two clamping members are a left clamping member and a right clamping member, the left clamping member includes a left slider 23 slidably fitted on the centering guide shaft 13 and fixedly connected to the piston rod end of the centering cylinder 11, as shown in fig. 1, the left clamping member further includes a left claw 12 fixedly connected to the left slider 23, the right clamping member includes a right slider 24 slidably fitted on the centering guide shaft 13 and a right claw 18 fixedly connected to the right slider 24, the two claws are arranged opposite to each other, and a bearing plate for supporting the target ring member 21 is detachably mounted at the bottom of each claw.

It should be noted that the left slider 23 and the left jaw 12, or the right slider 24 and the right jaw 18, may be integrally formed or separately fastened, for example, the left slider 23 and the left jaw 12 may be integrally formed or separately fastened.

Referring to fig. 1, the centering transmission portion includes a centering gear 15 mounted on a bracket 25, and further includes two centering racks 14 parallel to each other and engaged with the centering gear 15, wherein an end of one of the centering racks 14 is fixedly connected to the left slider 23, and an end of the other centering rack 14 is fixedly connected to the right slider 24.

The two centering racks 14 are parallel to the centering oil cylinder 11 or the centering guide shaft 13.

Both clamping elements are always arranged symmetrically with respect to the centering gear 15.

The working principle of the centering fixture is as follows:

the piston rod of the centering cylinder 11 stretches out and draws back to drive the left slider 23 to slide on the centering guide shaft 13, to drive the centering rack 14 connected with the left slider 23 (or the left claw 12) to move forward or backward along the meshing of the centering gear 15, and simultaneously, the centering gear 15 drives the centering rack 14 connected with the right slider 24 (or the right claw 18) to move forward or backward along the meshing of the centering gear 15, to drive the right slider 24 to slide on the centering guide shaft 13, that is, with the centering gear 15 as a middle point, the left slider 23 and the right slider 24 synchronously move in opposite directions or synchronously move in opposite directions, that is, the left claw 12 and the right claw 18 synchronously move in opposite directions or synchronously move in opposite directions, and the centering gear 15 is always at the middle position of two sliders or two claws, so as to realize synchronous centering.

When traveling in opposite directions, the two jaws clamp the target ring 21.

When going back on the other, the two jaws release the target ring 21.

Referring to fig. 1, the left jaw 12 and the right jaw 18 have the same structure and both include a back plate, the upper and lower sides of the back plate are respectively provided with a V-shaped plate having the same structure, the openings of the two V-shaped plates of the same back plate have the same direction, and a cavity formed by the back plate and the two V-shaped plates is used for clamping a target ring 21.

Specifically, the two back plates are parallel and opposite to each other, the openings of the two V-shaped plates of the left jaw 12 face the back plate of the right jaw 18, the openings of the two V-shaped plates of the right jaw 18 face the back plate of the left jaw 12, and several bearing plates are detachably arranged on the bottom surface of each lower V-shaped plate, that is, a plurality of bearing plates with different weights are detachably mounted on the bottom plate surface of the V-shaped plate on the lower side of each back plate, as shown in fig. 1, fig. 2 and fig. 3.

The centering clamp does not depend on the friction force of the V-shaped claws of the claws to clamp the ring piece, the V-shaped claws only play a centering role, but the bearing plate at the bottom of the claws supports the ring piece, and the damage to the surface of the hot ring piece and the influence on the size are reduced.

The cavity formed by the bearing plate, the back plate and the V-shaped plate is used for placing the target ring piece 21, wherein the bearing plate is mainly used for lifting the target ring piece 21, the specification of the target ring piece 21 is not limited, and for the target ring pieces 21 with different specifications, the jaw does not need to be replaced, and only the corresponding bearing plate below the jaw is replaced.

The number of the bearing plates under the jaws can be multiple, and the weights of the multiple bearing plates can be the same or different, preferably different weights, for example, a first bearing plate 16 and a second bearing plate 17 shown in fig. 1, 2 and 3, and the weights of the two bearing plates are different, so that the number and the positions of the two bearing plates can be adjusted according to the specification of the target ring member 21 to be lifted, and balance can be ensured.

The base includes base 1, installs leading truck 2 on the base 1, is the rotatory lifting member on the leading truck 2, and the rotatory lifting member includes around leading truck 2 evenly lays built-in have a displacement sensor's lift cylinder 3, and lift cylinder 3's cylinder is connected in leading truck 2, and lift cylinder 3's tailpiece of the piston rod rigid coupling has crane 4, and wherein crane 4 is located the top of leading truck 2.

Preferably, the guide frame 2 is detachably mounted on the base 1, i.e. the two are designed separately, so as to facilitate disassembly, assembly and maintenance.

The lift cylinders 3 are uniformly arranged to ensure the stability of lifting and to prevent the jaw base 9 from being inclined, and as shown in fig. 1, the guide frame 2 is rectangular, so that the lift cylinders 3 are arranged diagonally.

The lifting frame 4 is provided with a slewing bearing 5, and the slewing bearing 5 is fixedly connected with a jaw seat 9 through a connecting disc 8; the lifting frame 4 is also provided with a speed reducing motor 6, an output shaft of the speed reducing motor 6 is sleeved with a rotary gear 7, and the rotary gear 7 is meshed with the rotary support 5.

The lifting principle of the centering fixture is as follows:

the piston rod of the lifting oil cylinder 3 drives the lifting frame 4 to ascend or descend, and the jaw seat 9 on the lifting frame 4 synchronously moves along with the lifting frame.

The rotation principle of the centering fixture is as follows:

the speed reducing motor 6 is started, an output shaft of the speed reducing motor 6 drives the rotary gear 7 to synchronously rotate, the rotary gear 7 is meshed with the rotary support 5 to drive the rotary support 5 to rotate, and the rotary support 5 drives the jaw seat 9 to synchronously rotate through the connecting disc 8.

In order to improve the stability and provide the guide for the lift, the support body downwardly extending of crane 4 forms the slide arm, and the surface mounting of slide arm has guide backing plate 20 (guide backing plate 20 is installed on the slide arm through the bolt), as shown in fig. 4, installs in leading truck 2 and supplies the lift rail 19 that the slide arm imbeds and slides from top to bottom (see fig. 2), and the concrete process is as follows:

when the lifting oil cylinder 3 drives the lifting frame 4 to ascend or descend, the sliding arm below the lifting frame 4 drives the guide base plate 20 to synchronously ascend and descend and slide along the lifting guide rail 19, the lifting guide rail 19 and the guide base plate 20 play a role in guiding, limiting and stabilizing, and when the sliding arm slides up and down, the guide base plate 20 is attached to the lifting guide rail 19.

The working process of the feeding and blanking device for ring bulging comprises the following steps:

the claw supports a hot ring piece (a target ring piece 21) from a material taking platform, the lifting oil cylinder 3 pushes the lifting frame 4 to lift after centering, the speed reduction motor 6 drives the rotary support 5 to drive the claw seat 9 to rotate to be right above the bulging machine, the lifting frame 4 descends to place the hot ring piece (the target ring piece 21) to a bulging station, the claw is loosened to finish feeding, and the ring piece is bulged;

after the ring piece is expanded, the claw holds up the ring piece (the target ring piece 21), the lifting oil cylinder 3 drives the lifting frame 4 to ascend until the ring piece is higher than the top of the expanding machine, the claw rotates to a blanking area, and the lifting frame 4 descends to convey the ring piece to a blanking position to finish blanking.

Second embodiment

The embodiment provides a feeding and blanking method for ring bulging, and with reference to fig. 5, the method comprises the following specific steps:

the heated target ring piece 21 is placed on a material taking platform; clamping the target ring piece 21 by the centering clamp; the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece 21 is vertically separated from the material taking platform; the rotary lifting component drives the centering fixture to rotate, and the target ring piece 21 rotates to a position above a central station of the bulging machine 22; the centering fixture is driven to descend by rotating the lifting component, and the target ring piece 21 vertically descends to the central station of the bulging machine 22; the centering fixture loosens the target ring member 21; the target ring member 21 starts bulging; after the bulging is finished, the centering fixture clamps the target ring piece 21; the centering clamp is driven to ascend by rotating the lifting component, and the target ring piece 21 is vertically separated from the bulging machine 22; the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece 21 is rotated above the discharging platform; the centering clamp is driven to descend by rotating the lifting member, and the target ring piece 21 vertically descends to the unloading platform; the centering fixture loosens the target ring member 21; the centering clamp is driven to ascend by rotating the lifting member, and the target ring piece 21 is vertically separated from the discharging platform; the centering fixture is driven to rotate by the rotary lifting component, and the target ring piece 21 rotates to the material taking platform; clamping off a next target ring 21; thus, a feeding and discharging cycle is completed.

Specifically, as shown in fig. 5, the feeding and blanking method for ring bulging is as follows:

firstly, placing a heated target ring piece 21 on a platform to be fed, wherein the bottom surface of a bearing plate at the bottom surface of a jaw is slightly higher than the top surface of a hot ring piece (the target ring piece 21), the jaw is opened until the diameter of the jaw is slightly larger than that of the hot ring piece (the target ring piece 21), and the jaw descends until the top surface of the bearing plate is slightly lower than the bottom surface of the hot ring piece (the target ring piece 21);

then, a piston rod of the centering oil cylinder 11 retracts to drive the left and right jaws to synchronously clamp and center, after the left and right jaws are in contact with the hot ring piece (the target ring piece 21), the piston rod of the centering oil cylinder 11 stops and is locked to complete centering of the hot ring piece, then the lifting oil cylinder 3 drives the jaws to ascend, a bearing plate at the bottom of the jaws supports the centered hot ring piece (the target ring piece 21), when the bottom of the hot ring piece (the target ring piece 21) is slightly higher than the highest position of the bulging machine, the lifting oil cylinder 3 stops and is locked, and the jaws stop ascending;

then, the gear motor 6 drives a gear pair consisting of a rotary gear 7 and a rotary support 5 to drive the jaw seat 9 to rotate, the hot ring piece (the target ring piece 21) is rotated to the central station of the bulging machine, then the lifting oil cylinder 3 drives the clamp claws to support the hot ring piece to descend until the ring piece is positioned at an expanding station, the clamp claws are opened, the hot ring piece starts expanding, after the expanding is finished, the clamp claws clamp the ring piece (a target ring piece 21), then the ring piece (the target ring piece 21) is lifted, after the bottom surface of the ring piece (the target ring piece 21) exceeds the top of the expanding machine by 20mm, the claws rotate to the discharge position and then descend until the ring piece (the target ring piece 21) falls on the discharge platform, the claws are opened, and then the claw rises, after the bottom surface of the bearing plate is 20mm higher than the top surface of the ring piece (the target ring piece 21), the claw rotates to a material taking platform to take a material level, and a next hot ring piece after rolling is clamped, so that a cycle is completed.

The feeding and discharging method for ring expansion is mainly completed by using a feeding and discharging device for ring expansion.

The feeding and discharging device for ring bulging comprises a base, wherein a rotary lifting component is mounted on the base, a centering fixture for clamping a target ring 21 is arranged on the rotary lifting component, the rotary lifting component is lifted up and down along the base and drives the centering fixture to rise or fall, and the rotary lifting component can drive the centering fixture to rotate.

The centering fixture comprises a jaw seat 9, the middle section of the jaw seat 9 is fixedly connected to a rotary lifting member, two end parts of the jaw seat 9 are suspended and kept horizontally balanced, one end part is provided with a balance weight 10, the other end part extends to form a support 25, a centering oil cylinder 11 and a centering guide shaft 13 which are parallel to each other are arranged in the support 25, a displacement sensor is arranged in the centering oil cylinder 11, two clamping pieces are slidably sleeved on the centering guide shaft 13, and one clamping piece is fixedly connected to the piston rod end of the centering oil cylinder 11;

the bracket 25 is also provided with a centering transmission part positioned between the two clamping pieces, the centering transmission part drives the two clamping pieces to synchronously move in the same direction or synchronously move in the opposite direction along the centering guide shaft 13 under the driving of the centering oil cylinder 11, and the two clamping pieces are always arranged symmetrically relative to the centering transmission part.

The two clamping pieces are respectively a left clamping piece and a right clamping piece, the left clamping piece comprises a left sliding block 23 which is slidably sleeved on the centering guide shaft 13 and is fixedly connected to the piston rod end of the centering oil cylinder 11, the left clamping piece further comprises a left claw 12 which is fixedly connected to the left sliding block 23, the right clamping piece comprises a right sliding block 24 which is slidably sleeved on the centering guide shaft 13, the right clamping piece further comprises a right claw 18 which is fixedly connected to the right sliding block 24, the two claws are opposite to each other and a bearing plate used for lifting the target ring piece 21 is detachably mounted at the bottom of each claw.

The centering transmission part comprises a centering gear 15 arranged on a bracket 25 and two centering racks 14 which are parallel to each other and are meshed with the centering gear 15, wherein the end part of one centering rack 14 is fixedly connected to the left sliding block 23, and the end part of the other centering rack 14 is fixedly connected to the right sliding block 24;

the two centering racks 14 are parallel to the centering oil cylinder 11 or the centering guide shaft 13;

both clamping elements are always arranged symmetrically with respect to the centering gear 15.

The left jaw 12 and the right jaw 18 have the same structure and both comprise back plates, the upper side and the lower side of each back plate are respectively provided with a V-shaped plate with the same structure, the openings of the two V-shaped plates of the same back plate face the same direction, and a cavity formed by the back plate and the two V-shaped plates is used for clamping a target ring piece 21;

the bottom plate surface of the V-shaped plate at the lower side edge of each back plate is detachably provided with a plurality of bearing plates with different weights.

The base comprises a base 1, a guide frame 2 is installed on the base 1, a rotary lifting member is arranged on the guide frame 2, the rotary lifting member comprises lifting oil cylinders 3 which are uniformly distributed around the guide frame 2 and are internally provided with displacement sensors, cylinder barrels of the lifting oil cylinders 3 are connected to the guide frame 2, piston rod ends of the lifting oil cylinders 3 are fixedly connected with lifting frames 4, and the lifting frames 4 are located at the top of the guide frame 2;

the lifting frame 4 is provided with a slewing bearing 5, and the slewing bearing 5 is fixedly connected with a jaw seat 9 through a connecting disc 8;

the lifting frame 4 is also provided with a speed reducing motor 6, an output shaft of the speed reducing motor 6 is sleeved with a rotary gear 7, and the rotary gear 7 is meshed with the rotary support 5.

The frame body of the lifting frame 4 extends downwards to form a sliding arm, the surface of the sliding arm is provided with a guide base plate 20, and a lifting guide rail 19 for the sliding arm to be embedded and slide up and down is arranged in the guide frame 2.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.