Positioning system for multi-cylinder high-precision welding

Abstract

The present application relates to a kind of positioning systems for high-precision welding of multiple barrels, comprising: first force application part and second force application part relatively active, the first force application part and second force application part keep the abutment of adjacent two barrels during activity;Multiple calibration parts are actively arranged on the first force application part, and multiple calibration parts keep the radial alignment of adjacent barrels during relative activity.The present application is arranged by the relative activity between the first force application part and the second force application part, so that the end face abutment of the two barrels to be welded can be automatically completed, and the radial alignment of the two barrels can be synchronously completed by the action of multiple calibration parts linked thereto, and finally the relative fixed state between the two barrels is maintained, so as to facilitate the welding process, and compared with the prior art, the present application can also automatically realize the accurate alignment between the two barrels.

Description

Technical Field

[0001] This invention relates to the manufacture of screw extruders, and more specifically to a positioning system for high-precision welding of multi-barrel extruders. Background Technology

[0002] The barrel of a twin-screw extruder is typically made by welding together multiple short barrels. Traditionally, these short barrels require supports and fixation during welding to prevent misalignment. Current technology generally uses auxiliary support structures to fix the barrels together, but these are often ineffective. During welding, the barrels are easily displaced by impacts to the equipment, complicating the welding process. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] To address the problems mentioned above in the background section, the present invention provides the following technical solution:

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

[0006] The first and second force-applying parts are relatively movable, and the first and second force-applying parts keep adjacent barrels pressed together during the movement;

[0007] Multiple calibration sections are movable on the first force-applying part, and the multiple calibration sections maintain radial alignment of adjacent barrels during relative movement;

[0008] The first force-applying part, the second force-applying part, and the calibration part are linked and coordinated, and the multiple 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 for a positioning system for high-precision welding of multiple barrels, the second force-applying part has a working area and a pushing area. Multiple barrels are arranged side by side along the working area and the pushing area. Adjacent barrels are kept in contact with each other at the pushing area and the working area, respectively, and move towards the pushing area.

[0010] As a preferred technical solution for a positioning system for high-precision welding of multiple barrels, the second force-applying part includes a support member and a conveyor belt disposed on the support member. The conveyor belt is distributed along the working area and the pushing area. The first force-applying part maintains linear movement on the support member. The support member has an abutment end that acts on the barrel.

[0011] As a preferred technical solution for 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 for 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 slidingly engaging with the first force-applying part, a driving block slidably disposed on the first force-applying part and connected to the calibration part via a connecting rod, the moving part elastically connecting to the first force-applying part and connected to the driving block.

[0013] As a preferred technical solution for 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 for a positioning system for high-precision welding of multiple barrels, a second spring assembly is connected between the drive block and the moving part.

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

[0016] The positioning system for high-precision welding of multi-barrel machines provided by this invention has the following advantages:

[0017] The present invention automatically achieves the end face abutment and fit between two barrels to be welded by the relative movable arrangement between the first force-applying part and the second force-applying part. Then, through the action of multiple calibration parts linked to it, the radial alignment between the two barrels can be completed synchronously, and finally the relative fixed state between the two barrels is maintained, which facilitates the welding process. Compared with the prior art, the present invention can also automatically achieve precise alignment between the two barrels. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

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

[0020] Figure 2 For about Figure 1 Another perspective view.

[0021] Figure 3 for Figure 1 A cross-sectional view of the first force-applying part shown in the embodiment.

[0022] Figure 4 for Figure 1 A schematic diagram showing the connection between the first force-applying part and the calibration part in the embodiment.

[0023] Figure 5 for Figure 1 A schematic diagram showing the breakdown between the middle part of the structure.

[0024] Figure 6 for Figure 1 An application diagram of the embodiment.

[0025] Figure 7 For about Figure 6 The front view.

[0026] Figure 8 This is a schematic diagram illustrating the operation of the calibration unit in conjunction with the barrel in an embodiment of the present invention.

[0027] Figure label:

[0028] 1. Push block; 2. Supporting component; 3. Conveyor belt; 4. Electric push rod; 5. Moving part; 6. Drive block; 7. Connecting rod; 8. Calibration part; 9. Drive cylinder; 10. Contact end; 11. First force spring; 12. Second force spring; 13. Working area; 14. Pushing area. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0033] Reference Figure 1-8 This invention provides a positioning system for high-precision multi-barrel welding, including a second force-applying part, which consists of at least a support member 2 and a conveyor belt 3 disposed on the support member 2. A moving part 5 is slidably mounted on the support member 2. The invention also includes a first force-applying part (push block 1), which is slidably sleeved on the moving part 5 and connected to the moving part 5 by a first spring assembly (first force-bearing spring 11). At least two calibration parts 8 are slidably mounted laterally on the push block 1, and the sliding direction of the calibration parts 8 on the push block 1 is... Figure 8 In the horizontal direction of the viewpoint, the shape of one side of the calibration section 8 matches the shape of the inner wall of the barrel, such as... Figure 8 As shown, when the two calibration parts 8 slide to their limits in a direction that moves away from each other, they abut against the two sides of the inner wall of the barrel respectively. When they abut against two adjacent barrels at the same time, the radial alignment between the two barrels is completed.

[0034] Regarding the method of controlling the movement of calibration unit 8 on push block 1, specifically, as follows: Figure 4 As shown, a drive block 6 is slidably mounted on the push block 1, and a connecting rod 7 is hinged between the drive block 6 and the two calibration parts 8, so that controlling the movement of the drive block 6 can realize the mutual approach and distance between the two calibration parts 8.

[0035] In this invention, the conveyor belt 3 can be divided into a pushing area 14 and a working area 13 along its length, as shown in the figure below. Figure 7 As shown, the support member 2 can be fixed in the field. When positioning the barrels, the first barrel is placed in the pushing area 14, as described above. Figure 7 As shown in the view, the first barrel is located near the far right of the pushing area 14, and the second barrel is placed in the working area 13. A short-stroke drive cylinder 9 is also fixedly installed on the support member 2, and an abutment end 10 is fixed on its output end. When the drive cylinder 9 controls the abutment end 10 to extend forward, it abuts one end of the first barrel. Then, when the moving part 5 moves to the left, it drives the push block 1 to move synchronously. The push block 1 abuts against the second barrel to keep the end faces of the two barrels pressed together. With the cooperation of the first force spring 11, the moving part 5 can continue to move a certain distance, causing the drive block 6 to move towards... Figure 3The moving part 5 moves to the left in the field of view, thereby controlling the two calibration parts 8 to move away from each other. At this time, the two calibration parts 8 are exactly abutting against the first barrel and the second barrel, so as to achieve radial alignment between the first barrel and the second barrel, thereby completing the precise positioning between the two barrels and keeping them fixed in the field. At this time, it is convenient to cooperate with the welding robot's welding work. After the first barrel and the second barrel are fixedly connected, the moving part 5 moves towards the left. Figure 7 Moving to the right in the field of view, the first force spring 11 resets, the drive unit moves on the push block 1, causing the two calibration parts 8 to come together and reset. Finally, the push block 1 and the calibration parts 8 are withdrawn from the barrel together, and then the contact end 10 retracts to release the contact with the first barrel. At this time, the conveyor belt 3 moves towards... Figure 7 The machine operates to the left in the field of view, causing the two barrels to move to the left. The original second barrel then moves to the rightmost position of the pushing area 14, which is where the original first barrel was. Then, the third barrel is placed in the working area 13, and the welding and fixing between it and the second barrel is completed according to the above process. After the welding and fixing between multiple barrels is completed, the parts of the barrels that are blocked and not welded by the robot are manually repaired. Compared with the prior art, the present invention achieves the effect of automatic positioning between multiple barrels, that is, no human cooperation is required during position calibration, thus enabling better coordination with the barrel welding process.

[0036] Furthermore, refer to Figure 3 and Figure 4 Regarding the connection between the drive block 6 and the moving part 5, specifically, a second force spring 12 is also connected between the drive block 6 and the moving part 5. This allows the moving part 5 to continue moving a certain distance when the drive block 6 moves to keep the two calibration parts 8 pressed against the inner wall of the barrel. This keeps the second force spring 12 compressed, increasing the contact force on the drive block 6, i.e., increasing the contact force between the calibration parts 8 and the inner wall of the barrel. This makes the two barrels more stable when they are kept relatively fixed, thus facilitating welding.

[0037] Furthermore, refer to Figure 2 Regarding the power supply for the moving part 5 when it slides on the support member 2, specifically, an electric telescopic rod can be installed on the support member 2 and connected to the moving part 5.

[0038] Furthermore, in the workflow described above, the sequential workflow control between conveyor belt 3, electric push rod 4, and drive cylinder 9 can be established through a PLC module or a microcontroller module to establish a linkage relationship.

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

[0040] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should 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 in that: include: The first and second force-applying parts are relatively movable, and the first and second force-applying parts keep adjacent barrels pressed together during the movement; Multiple calibration sections are movable on the first force-applying part, and the multiple calibration sections maintain radial alignment of adjacent barrels during relative movement; in: The first force-applying part, the second force-applying part, and the calibration part maintain a linkage and cooperation, and the plurality of calibration parts maintain synchronous movement as the first force-applying part and the second force-applying part move relative to each other; The second force-applying part has a working area and a pushing area. Multiple barrels are arranged side by side along the working area and the pushing area. Adjacent barrels are kept in contact with each other at the pushing area and the working area, respectively, and move towards the pushing area. The second force-applying part includes a support member and a conveyor belt disposed on the support member. A movable part is slidably mounted on the support member. The conveyor belt is distributed along the working area and the pushing area. The first force-applying part maintains linear movement on the support member. The support member has an abutting end that acts on the barrel. The first force-applying part includes a push block, which is slidably sleeved on the moving part and connected to the moving part by a first spring assembly. The calibration part consists of at least two parts, which are laterally symmetrically slidably mounted on the push block. A driving block is slidably disposed on the pushing block, and a connecting rod is hinged between the driving block and the two calibration parts to keep the two calibration parts moving closer or further apart from each other when the driving block moves.

2. The positioning system for high-precision welding of multiple barrels according to claim 1, characterized in that: The calibration section extends radially along the barrel and is adapted to the internal shape of the barrel.

3. The positioning system for high-precision welding of multiple barrels according to claim 1, characterized in that: A second spring assembly is connected between the drive block and the moving part.

4. The positioning system for high-precision welding of multiple barrels according to claim 1, characterized in that: The supporting member is provided with a driving element, which acts on the moving part.

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