CN218747605U - High-precision large thin-wall cylindrical part machining equipment - Google Patents

Abstract

The utility model relates to the technical field of machining equipment, and discloses high-precision large thin-wall barrel part machining equipment, which comprises a fixed structure, a clamping structure arranged on the fixed structure, and an operating structure arranged opposite to the clamping structure; the fixed structure comprises a base, a supporting table arranged on the base and a workpiece supporting ring structure arranged on the base; the clamping structure is rotatably arranged on the supporting platform; a conveying assembly is arranged in the base; the operation structure is arranged on the conveying assembly and slides along the base. This application adopts fixed knot structure and joint structure cooperation can satisfy directly fixed to the centre gripping of large-scale thin wall barrel spare, realizes directly carrying out the processing operation to the work piece, saves the processing link, guarantees the machining precision. Meanwhile, the workpiece can be directly rotated through the clamping structure, the workpiece machining position is convenient to adjust, the machining operation is facilitated, the machining requirement is met, and the universality is improved.

Description

High-precision large thin-wall cylindrical part machining equipment

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to large-scale thin wall barrel spare machine of high accuracy adds equipment.

Background

When the blind hole and the sealing surface of the blind hole are machined on the inner wall of a large thin-wall cylinder (hereinafter referred to as a workpiece), the machining operation is very difficult due to the limitation of the structure of the machined part. Particularly, in the existing machining equipment, a thin-wall cylinder with the diameter exceeding 2400mm, the length exceeding 12m and the wall thickness exceeding 28mm cannot be directly machined, but the workpiece needs to be divided into a plurality of sections for independent machining, and the cylinder is welded after the machining is finished, so that the workpiece is deformed in the welding process, and the machining precision cannot be guaranteed. And when processing, because of the limitation of processing equipment, the precision requirement required by processing can not be met when processing the blind hole, so that the processing difficulty is extremely high.

Meanwhile, the existing processing equipment cannot process each sealing surface of the blind hole, so that the processing operation becomes a great problem for processing the blind hole.

Therefore, aiming at the problems that the blind hole processing cannot be carried out on the large thin-wall cylinder and the processing precision is not high by adopting the existing equipment, the machining equipment for the large thin-wall cylinder with high precision is required to be provided at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is anticipated to provide a large-scale thin wall barrel spare machine of high accuracy adds equipment, solves the low and unable problem of directly processing the blind hole of current processing equipment machining precision.

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

the utility model is used for directly processing the blind hole and the sealing surface of the large thin-wall barrel part, effectively improving the processing precision, in particular to a high-precision large thin-wall barrel part machining device, which comprises a fixed structure, a clamping structure arranged on the fixed structure and an operating structure arranged opposite to the clamping structure; the fixed structure comprises a base, a supporting table arranged on the base and a workpiece supporting ring structure arranged on the base; the clamping structure is rotatably arranged on the supporting platform; a conveying assembly is arranged in the base; the operation structure is arranged on the conveying assembly and slides along the base.

The principle and the advantages of the scheme are as follows:

the displacement position through conveying assembly control operation structure at first in this scheme makes operation structure can directly carry out the blind hole processing to the clamping at the structural work piece of joint to satisfy the processing demand to large-scale barrel spare blind hole, simultaneously through accurate control operation structure's the volume of feeding, guarantee the processing precision. And can satisfy the centre gripping fixed to large-scale thin wall barrel spare through fixed knot structure and joint structure cooperation, satisfy the work piece centre gripping of multiple different external diameters, improve the equipment commonality, increase the stability of work piece when rotating, and need not segmentation processing again to save the processing link, also avoid secondary welding to influence the machining precision simultaneously.

Secondly, operating personnel can directly carry out the processing operation to work piece inside through operation structure, improves maneuverability, and the operating personnel of being convenient for control and regulation improves the operating efficiency.

Preferably, as an improvement, the workpiece supporting ring structure comprises a roller assembly arranged on the base, and a tightening assembly arranged on the roller assembly. The stability to the work piece is increased through work piece trunnion ring structure, satisfies the centre gripping fixed action to large-scale thin wall barrel spare, guarantees processing stability and security.

Preferably, as an improvement, the roller assembly comprises a roller frame arranged on the base and a roller group arranged on the roller frame, and the roller group is in rolling contact with the tightening assembly; the jacking assembly comprises a backing ring arranged on the periphery of the workpiece and an arc plate arranged on the inner wall of the backing ring, and the arc plate is in contact with the outer wall of the workpiece. Support the work piece in the work piece below through wheel components, can not cause the influence to the rotation of work piece simultaneously to add around the work piece and establish the tight subassembly in top, guarantee the stability of work piece at the rotation in-process, prevent not hard up and drop.

Preferably, as a refinement, the operating structure comprises a moving assembly and a support seat; the supporting seat is sleeved on the moving assembly and drives the moving assembly to move, and the supporting seat is arranged on the conveying assembly. Can improve the stability of removing the subassembly through the supporting seat, and then guarantee the processing precision, drive through the supporting seat simultaneously and adjust the removal subassembly, it is more accurate to remove the precision, and is more steady during the removal.

Preferably, as an improvement, the moving assembly comprises a moving rod and an operating table; the operation panel is arranged at the head part of the movable rod and is opposite to the clamping structure. The blind hole can be directly processed by an operator through the operating platform, and the operation is more convenient and faster.

Preferably, as an improvement, the movable rod is of a cylindrical structure, the length of the movable rod is 18000mm-22000mm, and the movable rod comprises an operation section and a counterweight section which are sequentially connected. And a plurality of transverse and vertical crossed reinforcing ribs are arranged in the movable rod. The movable rod is arranged into a cylindrical structure, so that an operator can conveniently enter the movable rod at any time, and the operation and the implementation of checking the processing state are facilitated; in order to meet the requirement of processing large-sized thin-wall barrel parts and improve the stability of the moving rod during processing, a counterweight section is additionally arranged at the rear end of the moving rod, and a plurality of reinforcing ribs are additionally arranged to improve the strength of the moving rod and ensure the operation safety.

Preferably, as an improvement, a numerical control tool rest is movably arranged on the operating platform. The feeding amount of the cutter can be accurately controlled through the numerical control cutter rest, so that the blind hole sealing surface is machined, and the machining accuracy is guaranteed.

Preferably, as an improvement, the clamping structure comprises a rotating disc and a clamping assembly; the rotating disc is movably arranged on the supporting table, and the clamping assembly is arranged on the rotating disc. The clamping assembly can clamp and fix workpieces with different diameters, so that the universality of equipment is increased, and the processing requirement on large thin-wall barrel parts is met.

Preferably, as an improvement, the clamping assembly comprises a fixing member and a clamping member; the fixing piece is movably arranged at the center of the rotating disc, the clamping piece is movably arranged on the periphery of the rotating disc, and the length of the clamping piece is 500mm-800mm. The clamping force to the workpiece is increased through the fixing part and the clamping part, the workpiece is prevented from loosening and falling, the stability of the workpiece machining process is guaranteed, and the safety of equipment is improved.

Preferably, as an improvement, the supporting seat comprises a base and an annular bracket, the annular bracket is arranged on the base, and the annular bracket is sleeved on the moving rod; the base is fixedly arranged on the conveying assembly. The base can balance the carriage release lever weight, stability when ensureing the carriage release lever operation, and the toroidal support more can promote the stability and the security of carriage release lever simultaneously, avoids carriage release lever and supporting seat relative slip, influences the operation precision.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a workpiece retainer ring structure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a moving assembly in an embodiment of the present invention;

fig. 4 is a schematic structural view of the supporting seat in the embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a fixing structure 1, a base 101, a supporting table 102, a clamping structure 2, a rotating disc 201, a fixing piece 211, a clamping piece 212, an operating structure 3, a moving rod 401, an operating table 402, a numerical control tool rest 411, a supporting seat 5, a base 501, an annular bracket 502, a conveying assembly 6, a workpiece supporting ring structure 7, a supporting wheel frame 701, a bolt 702, an arc plate 703, a roller group 704 and a supporting ring 705.

The embodiment is basically as shown in the attached figure 1:

a high-precision large thin-wall cylinder machining device is used for machining blind holes and sealing surfaces of large thin-wall cylinders. The clamping structure comprises a fixing structure 1, a clamping structure 2 arranged on the fixing structure 1, and an operation structure 3 arranged opposite to the clamping structure 2. The fixing structure 1 comprises a base 101 transversely arranged at the bottom, a workpiece supporting ring structure 7 arranged on the base, and a supporting platform 102 arranged on the base 101. A bearing track is arranged on the base 101, and a conveying assembly 6 is arranged in the bearing track. In this embodiment, the base 101 is a large horizontal lathe, and the length is 30m; the conveying assembly 6 is a ball screw which converts rotary motion into linear motion, and the ball screw is driven to rotate by a motor arranged in the base 101.

Specifically, as shown in fig. 2, the workpiece ring structure 7 includes a roller assembly disposed on the base 101, and a tightening assembly disposed on the roller assembly. The roller assembly comprises a roller frame 701 connected to the bearing rail through a bolt and roller groups 704 arranged on two sides of the roller frame 701, and the roller groups 704 are tangent to the tightening assembly and in rolling contact with the tightening assembly. The jacking assembly comprises a backing ring 705 sleeved on the periphery of the workpiece and an arc plate 705 movably arranged on the inner wall of the backing ring 705; the arc plate 705 is movably fixed on the inner wall of the backing ring 705 through a bolt 702 and is contacted with the outer wall of a workpiece. In this embodiment, the two workpiece supporting ring structures 7 are respectively sleeved in the front middle part and the rear middle part of the workpiece, and after the workpiece is placed in the tightening assembly, the arc plate 705 clamps the workpiece through the adjusting bolt 702, and the supporting ring 705 and the workpiece are driven to rotate together through the roller assembly, so as to ensure the stability of the workpiece.

Specifically, a supporting table 102 is fixedly arranged on the base 101 through a screw, and one side of the supporting table 102 is connected with a clamping structure 2 through a screw. The clamping structure 2 comprises a rotating disc 201 clamped on the support table 102 through a rotating shaft, and a clamping component arranged on the rotating disc 201. The clamping assembly comprises a fixing piece 211 movably arranged at the center of the rotating disc 201 and clamping pieces 212 arranged on the periphery of the rotating disc 201. The fixing piece 211 is an electric telescopic rod, and the length of the fixing piece 211 can be adjusted through rotation. A sliding groove is formed in the rotating disc 201, and the clamping piece 212 is clamped in the sliding groove and can slide in the sliding groove; the clamping piece 212 is of a stepped structure, a workpiece is clamped on the rotating disc 201 through the clamping piece 212, the clamping gradient position corresponding to the clamping piece 212 can be selected according to the diameter and the length of the workpiece, and the clamping piece 212 is adjusted in a sliding mode to clamp and fix the workpiece, so that the clamping of workpieces with various outer diameters is met. In this embodiment, the clamping member 212 has a length of 550mm; when the workpiece is clamped on the rotating disc 201, the clamping effect on the workpiece can be enhanced, and meanwhile, the workpiece is contacted and abutted tightly by adjusting the fixing piece 211, so that the supporting and fixing effect on the workpiece is further formed.

In particular, the operating structure 3 comprises a moving assembly 4 and a support 5. The moving member 4 includes a moving bar 401 and a console 402 provided at the head of the moving bar 401. As shown in fig. 3, the moving rod 401 is a boring rod structure which is cylindrical as a whole, the entire length of the moving rod 401 is 18000mm-22000mm, the moving rod 401 includes an operation section and a counterweight section which are connected in sequence, and the operation table 402 is arranged at the head of the operation section; the weight section is used to balance the weight of the moving rod 401 to keep the moving rod 401 stable. The movable rod 401 is of a hollow cylindrical structure, and an operator can enter the hollow cylindrical structure through the inside and reach the operating platform 402 located at the head part, so that the blind hole can be accurately machined conveniently. The inner wall of the movable rod 401 is also provided with a plurality of sections of transverse and vertical crossed reinforcing ribs so as to increase the overall strength of the movable rod 401 and ensure the operation safety.

Specifically, the whole length of carriage release lever 401 sets up to 20000mm, realizes that the workable degree of depth is 13000mm, can satisfy the processing demand of large-scale thin wall barrel spare inner wall blind hole. The numerical control tool rest 411 is installed on the operating platform 402, the feeding amount of a tool can be accurately controlled by adjusting the numerical control tool rest 411, the processing precision requirements of 1500mm longitudinal stroke and 1000mm transverse stroke are met, and the operation processing requirements of inner wall blind holes and sealing surfaces thereof are met.

Specifically, as shown in fig. 4, a plurality of sets of reinforcing ribs are arranged in the supporting seat 5 to improve the overall strength of the supporting seat 5. The support base 5 comprises a base 501 which is a trapezoidal column as a whole, and an annular support 502 which is fixed on the base 501 through bolts. The inner diameter of the annular support 502 is the same as the outer diameter of the moving rod 401, and the annular support is sleeved on the moving rod 401 in an encircling manner, so that the head end of the moving rod 401 is opposite to the clamping structure 2. The base 501 is slidably connected to a bearing slide rail of the base 101 through a bolt and is fixedly connected to the conveying assembly 6, and the conveying assembly 6 drives the base 501 to move on the bearing slide rail, so as to drive the moving rod 401 to move back and forth, thereby realizing radial feeding of the numerical control tool rest 411. In this embodiment, two support seats 5 are provided, and are respectively disposed near the center of gravity and at the tail of the moving rod 401.

The specific implementation process is as follows:

as shown in fig. 1 to 4, during the machining operation, the inner wall of the workpiece needs to be subjected to blind hole machining, and then each sealing surface of the blind hole needs to be machined. Therefore, a workpiece is sleeved in the workpiece supporting ring structure 7, and then is fixed on the rotating disc 201 through the clamping assembly, meanwhile, the workpiece is tightly fixed by adjusting the fixing piece 211, and the workpiece is clamped and fixed by the arc plate 705 through the adjusting bolt 702, so that the rotating disc 201 can drive the workpiece and the tightening assembly to rotate around the rotating disc 201. And then setting a feeding parameter of the moving component 4, enabling the conveying component 6 to drive the moving component 4 to move forwards or backwards on the bearing track, enabling the numerical control tool rest 411 to feed forwards and backwards, and after starting the equipment, carrying out blind hole machining on the inner wall of the workpiece under the rotation of the workpiece.

After the blind hole is machined, an operator enters the moving rod 401 to reach the operating platform 402, and sets specific feeding parameters of the numerical control tool rest 411, and each sealing surface of the blind hole is machined through the numerical control tool rest 411. The blind hole and the sealing surface of the blind hole can be directly machined in a workpiece, machining accuracy is improved, and machining efficiency is guaranteed.

In the embodiment, a large workpiece is fixed through the workpiece supporting ring structure 7 of the fixing structure 1, so that the requirement for one-time processing of a large thin-wall cylinder is met, thin-wall cylinders with different outer diameters of 0-5 meters can be clamped through the clamping structure 2, clamping processing of various workpieces can be adapted, and the universality of equipment is improved; the operation structure 3 can directly process the inner wall blind hole and the sealing surface of a large thin-wall barrel part (particularly, the length of the barrel part exceeds 12m, the diameter of the barrel part exceeds 2400mm, and the wall thickness of the barrel part exceeds 28 mm), and the operation structure is not used for processing operation in a segmented mode, so that the operation procedures are greatly saved, and the subsequent connection operation is reduced. Meanwhile, the operation table 402 can realize accurate control of the cutter, control the feeding amount, further meet the requirement of processing the end face with high precision requirement, achieve the processing precision requirement that the parallelism of the upper plane and the lower plane of the sealing surface is 0.7, the planeness is 0.6, the perpendicularity of the sealing surface and the cylinder wall is 3, and further realize the groove processing with the roughness of 6.3. Greatly reducing the difficulty of processing operation.

Simultaneously, in this embodiment, set up length to carriage release lever 401 and be 20000mm, and increase the counter weight section to balanced carriage release lever 401 self weight, and set up supporting seat 5 and remove and support the carriage release lever, can satisfy the accurate regulation and control of removing carriage release lever 401, can improve the stable supporting effect to carriage release lever 401 again, guarantee the stability of carriage release lever 401 in the operation process, reduce the vibration, and then guarantee the machining precision.

Moreover, in this embodiment, an operator can directly enter the moving rod 401, and the numerical control tool rest 411 is controlled on the operating platform 402, so that the blind hole sealing surface can be accurately processed, the operation convenience is greatly improved, the operability is enhanced, and the problem that the blind hole and the end surface of a large thin-wall barrel part with the precision requirement of 1mm cannot be processed is solved. Meanwhile, a plurality of sections of reinforcing ribs are arranged in the moving rod 401, and the supporting seat 5 is added, so that the safety of operation can be completely guaranteed, and the reliability of equipment is improved.

Meanwhile, in order to improve the operation efficiency, an automatic operation process is adopted at present, and aiming at the processing of the blind hole and the sealing surface of the large-sized thin-wall cylinder part, the workpiece is divided into a plurality of sections by the existing automatic processing equipment and then processed respectively, so that the operation efficiency is improved by using the existing automatic equipment, and then the workpiece is welded. However, the deformation of the thin-wall cylinder part can be generated in the welding process, the machining precision is affected, and the blind hole is machined to be a difficult problem. The conventional segmented machining mode is not adopted, the workpiece is directly fixed and machined, the machining requirement is met through operation, and then the welding process is avoided.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (10)

1. The machining equipment for the high-precision large thin-wall cylindrical part is characterized by comprising a fixing structure, a clamping structure and an operating structure, wherein the clamping structure is arranged on the fixing structure; the fixed structure comprises a base, a supporting platform arranged on the base and a workpiece supporting ring structure arranged on the base; the clamping structure is rotatably arranged on the supporting platform; a conveying assembly is arranged in the base; the operation structure is arranged on the conveying assembly and slides along the base.

2. The high-precision large thin-walled cylinder machining equipment according to claim 1, wherein: the workpiece supporting ring structure comprises a roller assembly arranged on the base and a jacking assembly arranged on the roller assembly.

3. The high-precision large thin-walled cylinder machining equipment according to claim 2, wherein: the roller assembly comprises a roller frame arranged on the base and a roller group arranged on the roller frame, and the roller group is in rolling contact with the jacking assembly; the jacking assembly comprises a backing ring arranged on the periphery of the workpiece and an arc plate arranged on the inner wall of the backing ring, and the arc plate is in contact with the outer wall of the workpiece.

4. The high-precision large thin-walled cylinder machining equipment according to claim 1, wherein: the operating structure comprises a moving assembly and a supporting seat; the supporting seat is sleeved on the moving assembly and drives the moving assembly to move, and the supporting seat is arranged on the conveying assembly.

5. The high-precision large thin-walled cylinder machining equipment according to claim 4, wherein: the moving assembly comprises a moving rod and an operating platform; the operation panel is arranged on the head of the movable rod and is arranged opposite to the clamping structure.

6. The high-precision large thin-walled cylinder machining equipment according to claim 5, wherein: the movable rod is of a cylindrical structure, the length of the movable rod is 18000mm-22000mm, a plurality of reinforcing ribs which are intersected transversely and vertically are arranged on the inner wall of the movable rod, and the movable rod comprises an operation section and a counterweight section which are sequentially connected.

7. The high-precision large thin-walled cylinder machining equipment according to claim 5, wherein: and a numerical control tool rest is movably arranged on the operating platform.

8. The high-precision large thin-walled cylinder machining equipment according to claim 1, wherein: the clamping structure comprises a rotating disc and a clamping assembly; the rotary disc is movably arranged on the supporting table, and the clamping assembly is arranged on the rotary disc.

9. The high-precision large thin-walled cylinder machining equipment according to claim 8, wherein: the clamping assembly comprises a fixing piece and a clamping piece; the fixing piece is movably arranged at the center of the rotating disc, the clamping piece is movably arranged on the periphery of the rotating disc, and the length of the clamping piece is 500mm-800mm.

10. The high-precision large thin-walled cylinder machining equipment according to claim 6, wherein: the supporting seat comprises a base and an annular bracket, the annular bracket is arranged on the base, and the annular bracket is sleeved on the moving rod; the base is fixedly arranged on the conveying assembly.

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