Positioning system for high-precision welding of multiple machine barrels

Abstract

The invention relates to a positioning system for multi-cylinder high-precision welding, which comprises a first force application part and a second force application part which are relatively movably arranged, and the first force application part and the second force application part keep two adjacent cylinders against each other in the moving process; and the plurality of calibration parts are movably arranged on the first force application part, and the plurality of calibration parts keep the adjacent machine barrels aligned in the radial direction during relative movement. The first force application part and the second force application part are movably arranged relatively, so that the end faces of the two to-be-welded machine barrels can be automatically abutted against each other, and the two to-be-welded machine barrels can be synchronously aligned in the radial direction under the action of a plurality of calibration parts linked with the two to-be-welded machine barrels, so that the welding precision is improved, and the welding efficiency is improved. And finally, the relative fixing state between the two machine barrels is kept, so that the welding process is facilitated, and compared with the prior art, accurate alignment between the two machine barrels can be automatically achieved.

Description

Technical Field

[0001] The present invention relates to the manufacture of screw extruders, and more particularly to a positioning system for high-precision welding of multiple barrels. Background Art

[0002] The barrels of twin-screw extruders are generally welded together from multiple short barrels. When welding traditional barrels, the short barrels need to be supported and fixed to prevent misalignment. In the current technology, for the fixation between barrels, some auxiliary support structures are generally used, but their fixation effect is poor, and it is very easy to shift relative to each other when being bumped by equipment during the welding process, thus bringing difficulties to the welding process. Summary of the Invention

[0003] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] To solve the problems in the above background art, the present invention provides the following technical solutions:

[0005] A positioning system for high-precision welding of multiple barrels, comprising:

[0006] A first force-applying part and a second force-applying part that are relatively movably arranged, and the first force-applying part and the second force-applying part keep adjacent barrels in abutment during the moving process;

[0007] A plurality of calibration parts movably arranged on the first force-applying part, and adjacent barrels are kept radially aligned during the relative movement between the plurality of calibration parts;

[0008] Wherein, the first force-applying part, the second force-applying part and the calibration parts are kept in linkage cooperation, and the plurality of calibration parts move synchronously with the relative movement of the first force-applying part and the second force-applying part.

[0009] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, the second force-applying part has a working area and a pushing area, and multiple barrels are arranged side by side along the working area and the pushing area. Adjacent barrels are kept in abutment at the pushing area and the working area respectively, and move towards the pushing area.

[0010] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, the second force-applying part includes a support member and a conveyor belt arranged on the support member. The conveyor belt is distributed along the direction of the working area and the pushing area. The first force-applying part linearly moves on the support member, and the support member has an abutting end acting on the barrel.

[0011] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, the calibration part extends radially along the barrel and is adapted to the internal shape of the barrel.

[0012] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, it further includes a moving part configured to move relative to the first force-applying part. The calibration part is slidably engaged with the first force-applying part. A driving block is slidably arranged on the first force-applying part and is connected to the calibration part through a connecting rod. The moving part is elastically connected to the first force-applying part and is connected to the driving block.

[0013] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, the first force-applying part is slidably connected to the moving part, and a first spring assembly is connected between the first force-applying part and the moving part.

[0014] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, a second spring assembly is connected between the driving block and the moving part.

[0015] As a preferred technical solution of a positioning system for high-precision welding of multiple barrels, the moving part is slidably connected to a support member. A driving element is arranged on the support member and acts on the moving part.

[0016] The positioning system for high-precision welding of multiple barrels provided by the present invention has the following beneficial effects:

[0017] By the relative movement setting between the first force-applying part and the second force-applying part, the present invention can automatically complete the end-face abutting and fitting between two barrels to be welded. Then, through the action of a plurality of calibration parts linked therewith, the radial alignment between the two barrels can be synchronously completed, and finally the relative fixed state between the two barrels can be maintained, thus facilitating the welding process. Compared with the prior art, the present invention can also automatically achieve the precise alignment between the two barrels. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0019] Figure 1 is a perspective view of one embodiment of the present invention.

[0020] Figure 2 is about Figure 1 another perspective view of

[0021] Figure 3 For Figure 1 Internal sectional view of the first force application part shown in the embodiment.

[0022] Figure 4 For Figure 1 Connection diagram between the first force application part and the calibration part shown in the embodiment.

[0023] Figure 5 For Figure 1 Schematic diagram of the disassembly between some structures in

[0024] Figure 6 For Figure 1 Application schematic diagram of the embodiment.

[0025] Figure 7 Regarding Figure 6 Front view.

[0026] Figure 8 Working schematic diagram of the calibration part cooperating with the barrel in the embodiment of the present invention.

[0027] Reference numerals:

[0028] 1. Pushing block; 2. Supporting member; 3. Conveyor belt; 4. Electric push rod; 5. Moving part; 6. Driving block; 7. Link; 8. Calibration part; 9. Driving cylinder; 10. Contact end; 11. First stress spring; 12. Second stress spring; 13. Working area; 14. Pushing area. Detailed implementation manners

[0029] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the drawings in the specification.

[0030] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0032] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally in a non-general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0033] Referring Figure 1-8 , an embodiment of the present invention provides a positioning system for high-precision welding of multiple barrels, including a second force application part, which is at least composed of a support member 2 and a conveyor belt 3 arranged on the support member 2. A moving part 5 is slidably installed on the support member 2. The present invention further includes a first force application part (pushing block 1), the pushing block 1 is slidably sleeved on the moving part 5, and a first spring assembly (first force-bearing spring 11) is connected between the pushing block 1 and the moving part 5. At least two calibration parts 8 are symmetrically slidably installed transversely on the pushing block 1. The sliding direction of the calibration parts 8 on the pushing block 1 is Figure 8 the horizontal direction in the perspective view. The shape of one side of the calibration part 8 is adapted to the shape of the inner barrel wall of the barrel. As Figure 8 shown, when the two calibration parts 8 slide to the limit in the direction of moving away from each other, they respectively abut against both sides of the inner barrel wall of the barrel. When they simultaneously abut against two adjacent barrels, the radial alignment between the two barrels is completed;

[0034] Regarding the movement control method of the calibration part 8 on the pushing block 1, specifically, as Figure 4 shown, a driving block 6 is slidably arranged on the pushing block 1. Link rods 7 are hinged between the driving block 6 and the two calibration parts 8, so that controlling the movement of the driving block 6 can realize the mutual approach and separation between the two calibration parts 8;

[0035] In the present invention, the length direction of the conveyor belt 3 can be sequentially divided into a pushing area 14 and a working area 13, and its distribution is as Figure 7 shown. The support member 2 can be fixed in the field. When the present invention is used for positioning between the barrels, the first barrel is placed in the pushing area 14. As Figure 7 shown in the perspective view, the first barrel is close to the rightmost side of the pushing area 14, and the second barrel is placed in the working area 13. A short-stroke driving cylinder 9 is also fixedly installed on the support member 2, and a contact end 10 is fixed on the output end thereof. When the driving cylinder 9 controls the contact end 10 to extend forward, one end of the first barrel is abutted. Then, when the moving part 5 moves leftward, it drives the pushing block 1 to move synchronously, and the pushing block 1 abuts against the second barrel to keep the end faces of the two barrels in tight contact. Through the cooperation of the first force-bearing spring 11, at this time, the moving part 5 can continue to move a certain distance, so that the driving block 6 moves towards Figure 3Move in the left direction in the perspective to control the two calibration parts 8 to move away from each other. At this time, the two calibration parts 8 just abut against the first barrel and the second barrel to achieve the radial alignment between the first barrel and the second barrel, thus completing the precise positioning between the two barrels and remaining fixed in the field. At this time, it is convenient to cooperate with the welding work of the welding manipulator. After the first barrel and the second barrel are fixedly connected, the moving part 5 moves Figure 7 in the right direction in the perspective. The first force-bearing spring 11 resets. The driving part moves on the pushing block 1, so that the two calibration parts 8 move closer to each other and reset. Finally, the pushing block 1 and the calibration part 8 are withdrawn from the barrel together. Then the abutting end 10 retracts to release the abutment against the first barrel. At this time, the conveyor belt 3 Figure 7 operates in the left direction in the perspective to move the two barrels to the left, so that the original second barrel moves to the rightmost side of the pushing area 14, that is, moves to the place where the original first barrel is located. Then place the third barrel into the working area 13 and continue to complete the welding and fixing with the second barrel according to the above process. After the welding and fixing are completed between multiple barrels, the parts on the barrels that are blocked and not welded by the manipulator can be repaired by manual welding. Compared with the prior art, the present invention realizes the automatic positioning effect between multiple barrels, that is, no personnel cooperation is required during position calibration, so as to better cooperate with the welding process of the barrels.

[0036] Further, referring to Figure 3 and Figure 4 , regarding the connection method between the driving block 6 and the moving part 5, specifically, a second force-bearing spring 12 is also connected between the driving block 6 and the moving part 5, so that when the driving block 6 moves to keep the two calibration parts 8 in tight contact with the inner wall of the barrel, the moving part 5 can continue to move a certain distance, so as to keep the second force-bearing spring 12 compressed, so as to increase the abutting force on the driving block 6, that is, increase the abutting force of the calibration part 8 on the inner wall of the barrel, so that the two barrels can be more stable when keeping relatively fixed, thus facilitating the welding.

[0037] Further, referring to Figure 2 , regarding the power supply when the moving part 5 slides on the supporting member 2, specifically, an electric telescopic rod can be installed on the supporting member 2 and connected to the moving part 5.

[0038] Further, in the working process introduced above, for the control of the sequential working process among the conveyor belt 3, the electric push rod 4 and the driving cylinder 9, a linkage relationship can be established through a PLC module or a single-chip microcomputer module.

[0039] It should be understood that, during the development of any actual implementation, such as in any engineering or design project, numerous specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work in design, manufacturing, and production.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A positioning system for high-precision welding of multiple barrels, characterized by: include: A first force applying part and a second force applying part are relatively movable, wherein the first force applying part and the second force applying part keep two adjacent barrels pressed against each other during the moving process; A plurality of calibration parts movably disposed on the first force-applying part, wherein the plurality of calibration parts keep adjacent barrels in radial alignment during relative movement; The first force applying part, the second force applying part and the calibration part are linked and coordinated with each other, and the plurality of calibration parts move synchronously with the relative movement of the first force applying part and the second force applying part.

2. The multi-barrel high-precision welding positioning system according to claim 1 is characterized in that: The second force applying part has a working area and a pushing area, and a plurality of barrels are arranged side by side along the working area and the pushing area. Adjacent barrels are kept in close contact with each other at the pushing area and the working area, and move toward the pushing area.

3. The positioning system for multi-barrel high-precision welding according to claim 2 is characterized in that: The second force-applying part includes a supporting member and a conveyor belt arranged on the supporting member, the conveyor belt is distributed along the working area and the pushing area, the first force-applying part maintains linear movement on the supporting member, and the supporting member has a contact end acting on the barrel.

4. The positioning system for multi-barrel high-precision welding according to claim 3 is characterized in that: The calibration portion extends radially along the barrel and is adapted to the inner shape of the barrel.

5. The positioning system for multi-barrel high-precision welding according to claim 4 is characterized in that: It also includes a moving part configured to move relative to the first force-applying part, the calibration part slidingly cooperates with the first force-applying part, a driving block is slidably arranged on the first force-applying part, and the driving block is connected to the calibration part through a connecting rod, the moving part is elastically connected to the first force-applying part, and is connected to the driving block.

6. The positioning system for multi-barrel high-precision welding according to claim 5 is characterized in that: The first force applying part is slidably connected to the moving part, and a first spring component is connected between the first force applying part and the moving part.

7. The positioning system for multi-barrel high-precision welding according to claim 6 is characterized in that: A second spring assembly is connected between the driving block and the moving part.

8. The positioning system for multi-barrel high-precision welding according to claim 5, characterized in that: The moving part is slidably connected to the supporting member, and a driving element is arranged on the supporting member and acts on the moving part.

Images