CN219542302U

CN219542302U - Auxiliary processing device for rotary workpiece

Info

Publication number: CN219542302U
Application number: CN202320409162.5U
Authority: CN
Inventors: 兰芳; 严豪; 饶晓轩; 刘丽娟; 赵祥; 王有淦; 吴达星
Original assignee: Wuhan Newwish Technology Co ltd
Current assignee: Wuhan Newwish Technology Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-18
Anticipated expiration: 2033-03-07

Abstract

The utility model belongs to the technical field of auxiliary devices of machine tools, and discloses an auxiliary processing device for rotary workpieces. In the roller, the roller body is rotatably connected with the inner shaft through a pair of tapered roller bearings. The two ends of the inner shaft are rotatably connected to the roller support, and the joint of the roller support corresponding to the inner shaft is provided with a reinforcing rib. In the auxiliary processing device for the rotary workpieces, the rotary workpieces are supported by adopting the pair of roller assemblies which can be mutually close to or far from each other, so that the auxiliary processing device can adapt to the rotary workpieces with different sizes and effectively reduce friction. The roller is rotationally connected by adopting the tapered roller bearing, so that the roller is not easy to deform and lose efficacy when rotationally supporting the heavy-weight rotary workpiece, and the setting of the reinforcing ribs can strengthen the bearing capacity of the roller bracket and can cope with the heavy-weight rotary workpiece.

Description

Auxiliary processing device for rotary workpiece

Technical Field

The utility model relates to the technical field of auxiliary devices of machine tools, in particular to an auxiliary processing device for rotary workpieces.

Background

The large-scale equipment is increasingly used at present, the sizes and diameters of rotating workpieces such as nuts, screws, pull rods and the like are also increasingly large, and the weight of the rotating workpieces can reach tens of tons. In the process of machining the large rotary workpiece by the machine tool, the large rotary workpiece can be severely bent and deformed due to the self weight and the centrifugal force, and the weight of the rotary workpiece also enables the load of the fixing devices at the two ends of the machine tool to be large. Therefore, the large rotary workpiece requires an auxiliary device for auxiliary processing during the machining process.

The patent CN201399686 discloses a manual auxiliary support for a machine tool, which comprises two groups of identical auxiliary supports axially arranged along a machine tool guide rail and is used for providing auxiliary supports for loading and unloading of long parts with large weight and large diameter for a large numerical control lathe. The auxiliary device in the patent has a complex adjusting structure, can not provide rotation, and is not suitable for processing rotary workpieces.

Patent CN216633148U discloses a welding roller frame with adjustable lead screw, wherein, a pair of installation shells driven by screw nut mechanism, every installation shell is connected with two support cylinders in a rotating way, and the two support cylinders are driven by gears, and the position of the welding roller frame is adjusted in the patent, so that the welding roller frame is suitable for welding of pipe-shaped pieces with different pipe diameters. In the patent, two supporting cylinders on the same side are driven by gears, so that a heavy workpiece is borne and is easy to fail when the workpiece is rotated; the installation shell of the installation support cylinder is weak, the bearing capacity is weak, and effective rotation support cannot be provided for large-scale rotary workpieces.

Disclosure of Invention

In order to solve the problems, the utility model provides an auxiliary processing device for rotary workpieces, which aims at rotary workpieces with different sizes, particularly rotary workpieces with heavy weight, and provides a rotary support to lighten the load of fixing devices at two ends of a machine tool and prevent the rotary workpieces from bending due to dead weight and centrifugal force.

To achieve the purpose, the utility model adopts the following technical scheme:

the rotary workpiece auxiliary processing device comprises a pair of roller assemblies which can be mutually close to or far away from each other, wherein each roller assembly comprises a roller and a roller bracket, and the rotary workpiece auxiliary processing device comprises a roller and a roller bracket, wherein the roller bracket comprises a rotary workpiece, a rotary workpiece and a rotary workpiece, wherein the rotary workpiece is arranged on the rotary workpiece, and the rotary workpiece is arranged on the rotary workpiece.

The roller comprises an inner shaft, tapered roller bearings and a roller body, wherein two ends of the inner shaft are rotationally connected to the roller support, the roller body is annularly arranged outside the inner shaft, the roller body is rotationally connected with the inner shaft through a pair of tapered roller bearings, and the tapered roller bearings are symmetrical with respect to the middle position of the length of the inner shaft.

And a reinforcing rib is arranged at the joint of the roller bracket corresponding to the inner shaft.

Further, annular first limiting steps are arranged on the opposite surfaces of the inner shaft and the cylinder body, and a pair of tapered roller bearings are respectively arranged on two sides of the first limiting steps.

Further, the drum also includes two end caps.

The two end covers are respectively arranged at the two axial ends of the inner shaft.

The end covers are provided with annular second limiting steps, and two ends of the cylinder body are fixedly connected to the second limiting steps of the two end covers in a one-to-one correspondence mode.

Further, the drum further includes a lock nut threadedly coupled to the inner shaft and positioned inside the end cap, one of the lock nuts and the first stop step being configured to cooperatively define one of the tapered roller bearings in an axial direction.

Further, the roller support comprises a pair of support plates, each support plate is provided with a bearing edge which is obliquely arranged, the two groups of bearing edges are V-shaped when the roller assemblies are in butt joint, and two ends of the inner shaft are rotatably arranged in the middle of the bearing edges.

The reinforcing ribs and the supporting plate are integrally formed.

Further, the roller support further comprises a support, the support plate and the reinforcing ribs are arranged on the support, and the thickness of the reinforcing ribs increases linearly from top to bottom.

Further, the rotary workpiece auxiliary processing device further comprises a screw-nut mechanism, and the screw-nut mechanism comprises a screw seat.

The bottom of the support is connected to the screw rod seat in a sliding manner.

Further, a sliding groove is formed in the top of the screw rod seat.

The support is provided with a fastening nut which is inversely arranged in the sliding groove, and the support is connected with the sliding groove in a sliding way through the fastening nut.

The fastening nut is used for limiting the movement of the roller bracket when being fastened, and is used for connecting the roller bracket and the screw rod seat in a sliding manner when being loosened.

Further, the lead screw-nut mechanism also includes a nut.

The bottom of each roller bracket is connected with one nut, and a pair of nuts can be driven to be close to or far away from each other by being close to or far away from each other.

Further, the rotary workpiece auxiliary processing device further comprises a frame, a V-shaped boss is arranged on the upper surface of the frame, and the screw rod seat is clamped on the V-shaped boss.

The utility model has the beneficial effects that:

the auxiliary processing device for the rotary workpiece adopts the roller to rotatably support the rotary workpiece, so that friction between the rotary workpiece and the auxiliary processing device for the rotary workpiece is effectively reduced. Wherein, a pair of rollers can be mutually close to or far away from each other, so that the rotary workpiece with different sizes can be adapted; the rollers are rotationally connected by adopting tapered roller bearings, so that the rollers are not easy to deform and lose efficacy when rotationally supporting a heavy-weight rotary workpiece; the roller support adopts a frame type inclined supporting structure, and the connecting part of the roller support corresponding to the roller is provided with a reinforcing rib, so that the bearing capacity of the roller support is enhanced, and the roller support can handle heavy-weight rotary workpieces.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is an external view of an auxiliary processing device for rotary workpieces according to the present utility model;

FIG. 2 is a cross-sectional view of a drum in an embodiment of the present utility model;

FIG. 3 is a schematic view of a roller assembly in an embodiment of the utility model;

FIG. 4 is a cross-sectional view of the rotary workpiece auxiliary processing apparatus of the present utility model;

FIG. 5 is an enlarged view of the utility model I.

In the figure: 1. a roller assembly; 2. a screw-nut mechanism; 3. a frame; 4. rotating the workpiece;

10. a roller; 11. a roller bracket; 12. a pressing plate; 13. a fastening nut;

101. an inner shaft; 102. tapered roller bearings; 103. a cylinder; 104. a first limit step; 105. an end cap; 106. a lock nut;

110. reinforcing ribs; 111. A support plate; 112. A support;

1110. a bearing edge; 1051. A second limit step;

21. a screw rod seat; 22. a screw rod; 23. a nut; 24. tapered roller bearings; 25. a shaft sleeve; 26. a lock nut; 27. a bearing end cap; 28. a baffle;

210. a sliding groove; 211. a mounting hole; 221. a journal; 222. a shaft body;

30. v-shaped boss.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In order to solve the problem that the existing device cannot provide rotation support for a heavy-weight rotary workpiece, the embodiment provides a rotary workpiece auxiliary device.

When the rotary workpiece 4 is processed, at least one rotary workpiece auxiliary device is arranged at the middle part or the tail part of the rotary workpiece 4 so as to lighten the load of the fixing devices at the two ends of the frame and avoid the rotary workpiece 4 from bending under the action of dead weight and centrifugal force.

As shown in fig. 1, the rotary workpiece auxiliary device in the present embodiment includes a roller assembly 1, a screw-nut mechanism 2, and a frame 3.

With continued reference to fig. 1, each roller assembly 1 includes a roller 10 and a roller bracket 11, the roller 10 being rotatably coupled to the roller bracket 11. Wherein the drum 10 is adapted to be in rotational contact with the rotary workpiece 4, thereby reducing friction between the rotary workpiece 4 and the rotary workpiece auxiliary device in the present embodiment.

As shown in fig. 2, the drum 10 includes an inner shaft 101, tapered roller bearings 102, and a cylinder 103.

The cylinder 103 is disposed around the inner shaft 101, and the cylinder 103 is rotatably connected to the inner shaft 101 by a pair of tapered roller bearings 102.

Further, the drum 10 further includes an end cap 105 and a lock nut 106. The end cap 105 axially fixes the cylinder 103, and the lock nut 106 axially fixes the tapered roller bearing 102.

Further, both ends of the inner shaft 101 are rotatably connected to the roller bracket 11, the tapered roller bearing 102 is sleeved on the inner shaft 101, the lock nut 106 limits the axial relative movement of the tapered roller bearing 102 relative to the inner shaft 101, and the end cap 105 limits the axial relative movement of the cylinder 103 relative to the tapered roller bearing 102.

Further, a first limiting step 104 is annularly arranged on the opposite surfaces of the inner shaft 101 and the cylinder 103, a pair of tapered tube bearings 102 are respectively arranged on two sides of the first limiting step 104, and the tapered roller bearings 102 are symmetrical with respect to the middle position of the length of the inner shaft 101.

A lock nut 106 is threadedly coupled to the inner shaft 101 and positioned inboard of the end cap 105, with one lock nut 106 and the first stop step 104 configured to cooperate to define a tapered roller bearing 102 in an axial direction.

Two end caps 105 are respectively provided at both axial ends of the inner shaft 101, the front end of one end cap 105 is abutted against one tapered roller bearing 102, and one end cap 105 is fixed to one end of the cylinder 103 by a screw, the front end of the other end cap 105 is abutted against the other tapered roller bearing 102, and the other end cap 105 is fixed to the other end of the cylinder 103 by a screw.

Further, the end caps 105 are provided with annular second limiting steps 1051, and two ends of the cylinder 103 are fixedly connected to the second limiting steps 1051 of the two end caps 105 in a one-to-one correspondence.

As shown in fig. 3, both ends of the inner shaft 101 are rotatably connected to the drum bracket 11.

Further, the roller bracket 11 includes a pair of support plates 111, each support plate 111 being provided with a load-bearing edge 1110 disposed obliquely. With continued reference to fig. 3, the inner shaft 101 is pivotally connected at both ends to the middle of the load-bearing edge 1110 by the pressure plates 12.

Further, when the pair of roller assemblies 1 are abutted, the two sets of bearing edges 1110 are V-shaped. Thereby, the drum 10 can contact and rotatably support the rotary workpiece 4.

As shown in fig. 3, the connection part of the drum bracket 11 corresponding to the inner shaft 101 is provided with a reinforcing rib 110, and the thickness of the reinforcing rib 110 increases linearly from top to bottom. The reinforcing ribs 110 serve to reinforce the load-bearing capacity of the drum bracket 11.

Further, the reinforcing bars 110 are integrally formed with the support plate 111.

The drum stand 11 further includes a support 112, and the support plate 111 and the reinforcing bars 110 are disposed on the support 112.

In the rotary workpiece support device of the present embodiment, the screw-nut mechanism 2 is used to drive a pair of roller assemblies 1 toward or away from each other.

As shown in fig. 4, the screw-nut mechanism 2 includes a screw base 21, a screw 22, and a nut 23.

In this embodiment, two ends of the screw base 21 are rotatably connected to one screw 22.

Fig. 5 is a partial enlarged view of the position i in fig. 4, and further, as shown in fig. 5, the screw seat 21 and the screw 22 are rotatably connected by a tapered roller bearing 24 in this embodiment.

Further, mounting holes 211 are formed at both ends of the screw base 21, each mounting hole 211 is disposed outside a journal 221 of one screw 22, and the mounting holes 211 are rotatably connected with the journal 221 through two tapered roller bearings 24.

As shown in fig. 5, the screw-nut mechanism 2 further includes a sleeve 25, a lock nut 26, and a bearing end cap 27.

Wherein: the lock nut 26 is used for axial fixation between the tapered roller bearing 24 and the journal 221, limiting axial relative movement therebetween.

Referring to fig. 5, further, a sleeve 25 is interposed between the two tapered roller bearings 24 in a clamped manner, and a lock nut 26 presses the two tapered roller bearings 24 and the sleeve 25 against the shaft body 222 of the screw 21.

With continued reference to fig. 5, the bearing cap 27 is used for axial fixation between the tapered roller bearing 27 and the mounting hole 211, limiting axial relative movement therebetween.

Further, both sides of the mounting hole 211 are fixedly connected with one bearing cap 27 by screws, wherein the front end of each bearing cap 27 abuts against one tapered roller bearing 24.

In this embodiment, as shown in fig. 4, a nut 23 is sleeved on each screw 22.

Further, rotation of the two lead screws 22 may drive the two nuts 23 toward or away from each other.

In the pair of roller assemblies 1, the bottom of the support 112 of one roller bracket 11 is connected with one nut 22, and the bottom of the support 112 of the other roller bracket 11 is connected with the other nut 22.

Thus, when the two nuts 23 are moved toward or away from each other, the pair of roller brackets 11 can be moved toward or away from each other.

Further, a pair of roller assemblies 1 are moved toward and away from each other, so that the pair of roller assemblies can accommodate rotating workpieces 4 of different diameters.

The screw-nut assembly 2 further comprises a baffle 28, the baffle 28 being provided in the middle of the screw seat 21 for limiting the range of lateral movement of the nut 23, preventing the nut 23 from rotating relatively to a position out of the screw 22.

Referring to fig. 1, the bottom of the support 112 is also slidably coupled to the screw base 21.

The top of the screw seat 21 is provided with a sliding groove 210, and the sliding groove 210 is disposed at two sides of the screw seat 21 and extends along the length direction.

The support 112 is provided with a lock nut 13, the lock nut 13 is inversely arranged in the sliding groove 210, and the support 112 is slidably connected in the sliding groove 210 through the lock nut 13.

Wherein, the lock nut 13 is used for limiting the movement of the roller bracket 11 when being fastened, and is used for slidingly connecting the roller bracket 11 and the screw seat 21 when the lock nut 13 is loosened.

Referring to fig. 1, a V-shaped boss 30 is provided on the upper surface of the frame 3, and the screw seat 21 is clamped to the V-shaped boss 30.

The working principle of the rotary workpiece auxiliary processing device in this embodiment is as follows:

at least one auxiliary processing device for the rotary workpiece is arranged on the frame and is arranged at the middle part or the tail part of the rotary workpiece 4.

The lock nut 13 is unscrewed, and the two nuts 23 are driven to approach or separate from each other by rotating the two lead screws 22, thereby driving the drum bracket 11 and the drum 10 rotatably coupled thereto to approach or separate from each other. In the rotary workpiece auxiliary processing apparatus of the present embodiment, the pitch between the pair of roller assemblies 1 is adjusted by the screw-nut mechanism 2 so that the pair of rollers 10 each contact the rotary workpiece 4 and are adapted to the size of the rotary workpiece 4.

The lock nut 13 is tightened to fix the roller bracket 11 to the screw base 21.

When the machine tool processes the rotary workpiece 4, the rotary workpiece auxiliary processing device in the present embodiment supports the rotary workpiece 4, in which the drum 10 contacts the rotary workpiece 4 and rotates therewith.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. An auxiliary processing device for a rotary workpiece, comprising: a pair of roller assemblies (1) which can be moved towards and away from each other, each of said roller assemblies (1) comprising a roller (10) and a roller bracket (11), wherein:

the rotary drum (10) comprises an inner shaft (101), tapered roller bearings (102) and a drum body (103), wherein two ends of the inner shaft (101) are rotatably connected to the drum bracket (11), the drum body (103) is annularly arranged outside the inner shaft (101), the drum body (103) is rotatably connected with the inner shaft (101) through a pair of tapered roller bearings (102), and the tapered roller bearings (102) are symmetrical with respect to the middle position of the length of the inner shaft (101);

the connection part of the roller bracket (11) corresponding to the inner shaft (101) is provided with a reinforcing rib (110).

2. A rotary workpiece auxiliary processing apparatus as defined in claim 1, wherein: annular first limiting steps (104) are arranged on opposite surfaces of the inner shaft (101) and the cylinder body (103), and a pair of tapered roller bearings (102) are respectively arranged on two sides of the first limiting steps (104).

3. A rotary workpiece auxiliary processing apparatus as defined in claim 2, wherein: the drum (10) further comprises two end caps (105);

the two end covers (105) are respectively arranged at two axial ends of the inner shaft (101);

the end covers (105) are provided with annular second limiting steps (1051), and two ends of the cylinder (103) are fixedly connected to the second limiting steps (1051) of the two end covers (105) in one-to-one correspondence.

4. A rotary workpiece auxiliary processing apparatus according to claim 3, wherein: the drum (10) further comprises a lock nut (106), the lock nut (106) is in threaded connection with the inner shaft (101) and located on the inner side of the end cover (105), and one lock nut (106) and the first limit step (104) are configured to jointly define one tapered roller bearing (102) along the axial direction.

5. A rotary workpiece auxiliary processing apparatus as defined in claim 1, wherein: the roller bracket (11) comprises a pair of supporting plates (111), each supporting plate (111) is provided with a bearing edge (1110) which is obliquely arranged, two groups of bearing edges (1110) are V-shaped when the roller assemblies (1) are in butt joint, and two ends of the inner shaft (101) are rotatably arranged in the middle of the bearing edges (1110);

the reinforcing ribs (110) and the supporting plate (111) are integrally formed.

6. A rotary workpiece auxiliary processing apparatus according to claim 5, wherein: the roller support (11) further comprises a support (112), the support plate (111) and the reinforcing ribs (110) are arranged on the support (112), and the thickness of the reinforcing ribs (110) increases linearly from top to bottom.

7. A rotary workpiece auxiliary processing apparatus according to claim 6, wherein: the rotary workpiece auxiliary processing device further comprises a screw-nut mechanism (2), and the screw-nut mechanism (2) comprises a screw seat (21);

the bottom of the support (112) is connected to the screw rod seat (21) in a sliding manner.

8. A rotary workpiece auxiliary processing apparatus according to claim 7, wherein: a sliding groove (210) is formed in the top of the screw rod seat (21);

the support (112) is provided with a fastening nut (13), the fastening nut (13) is inversely arranged in the sliding groove (210), and the support (112) is connected with the sliding groove (210) in a sliding manner through the fastening nut (13);

the fastening nut (13) is used for limiting the movement of the roller bracket (11) when being fastened, and the fastening nut (13) is used for connecting the roller bracket (11) and the screw rod seat (21) in a sliding mode when being loosened.

9. A rotary workpiece auxiliary processing apparatus according to claim 7, wherein: the screw-nut mechanism (2) further comprises a nut (22);

the bottom of each roller bracket (11) is connected with one nut (22), and a pair of nuts (22) can be driven to be close to or far away from each other by being close to or far away from each other.

10. A rotary workpiece auxiliary processing apparatus according to claim 7, wherein: the rotary workpiece auxiliary processing device further comprises a frame (3), wherein a V-shaped boss (30) is arranged on the upper surface of the frame (3); the screw rod seat (21) is clamped on the V-shaped boss (30).