Air cylinder barrel expanding equipment

By designing a cylinder expansion device and utilizing components such as the inner wall expansion abutment end and lifting cylinder, the problem of low roundness accuracy in cylinder welding was solved, and the stability and accuracy of head welding were improved.

CN223947212UActive Publication Date: 2026-02-27CHANGCHUN CHANGRUI AUTOMOTIVE STAMPING PARTS CO LTD
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Patent Information

Application Number
CN202423284483.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-02-27
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

In the existing technology, when welding a set of end caps to the air cylinder in an automotive pneumatic system, the roundness of the welded joint is low and there is a lack of effective control equipment.

Method used

A cylinder expansion device was designed, including a worktable, an internal expansion support assembly, and a drive mechanism. The expansion end of the inner wall contacts the inner wall of the cylinder, and together with the lifting cylinder and auxiliary positioning components, it ensures the stability and accuracy of the end cap welding.

Benefits of technology

This improved the roundness accuracy of the welding between the cylinder body and the end cap, ensuring the stability and consistency of the welding process and reducing the impact on the cylinder shape.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of air cylinder equipment manufacturing, in particular to air cylinder barrel expanding equipment, and solves the technical problems that in the prior art, when an air cylinder in an automobile pneumatic system is used for welding a group of end sockets, the welding precision of the roundness of connection of the air cylinder and the end sockets is low, and effective control equipment is lacked. A jacking component is arranged in the configuration space; the inner expansion supporting assembly is provided with two inner wall expansion abutting ends, and the inner wall expansion abutting ends are driven by a driving mechanism so that the inner wall expansion abutting ends can make contact with the inner wall of the barrel. The cylinder can be arranged above the arrangement space. The technical scheme is particularly suitable for end socket welding work of a configured barrel, stable internal expansion support is formed, stable welding of the first group of end sockets is guaranteed, the shape of the barrel is continuously kept, and the welding precision of the barrel is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of air cylinder equipment manufacturing technology, especially relates to a kind of air cylinder barrel expansion equipment. BACKGROUND

[0002] In current mode, pneumatic control in automobile system power component uses air storage air cylinder as compressed air source, but due to the volume of air cylinder applied to automobile power pneumatic component is small, so the actual this type air cylinder does not belong to pressure vessel component, but because of its use, most processing factory adopts production technical standard, instead of the standard of pressure vessel, the air cylinder of this type is generally configured horizontally, including barrel and head, both are processed and need to be welded separately after completion;

[0003] And in prior art, due to the volume of this type air cylinder is small, the vehicle model of configured power system is also relatively limited, generally configured amount is not large, so most processing factory adopts manual welding, but when welding, especially when a group of head and barrel are connected, if the roundness of barrel cannot be guaranteed, the welding of head on the other side is also difficult to control. INVENTION CONTENTS

[0004] The utility model solves the technical problem that in prior art, when a group of head of air cylinder in automobile pneumatic system is welded, the roundness of connection between the two is low in welding precision, and effective control equipment is lacked, provide a kind of air cylinder barrel expansion equipment.

[0005] To solve the above technical problem, the technical scheme of the utility model is as follows:

[0006] A kind of air cylinder barrel expansion equipment, comprising:

[0007] Workbench 10, it has configuration space 101, the configuration space 101 is provided with jacking part 20 in;

[0008] Inner expansion support assembly 30, it has one inner wall expansion abutting end 301, the inner wall expansion abutting end 301 is driven by a drive mechanism, so that the inner wall expansion abutting end 301 can contact the inner wall of the barrel 1;

[0009] The barrel 1 can be arranged above the configuration space 101.

[0010] Further, the workbench 10 has table top 11, and the configuration port 12 is formed on the table top 11;

[0011] The configuration space 101 is formed below the configuration port 12;

[0012] The table top 11 is provided with support frame 13 below.

[0013] Further, the configuration space 101 has bottom plate 14;

[0014] The guiding column 15 is arranged on the table top 11, and a plurality of guiding columns 15 are arranged in a ring array around the center of the workbench 10.

[0015] Further, the table top 11 is provided with a ring-shaped buffer pad 16.

[0016] Further, the jacking component 20 comprises:

[0017] Two groups of jacking cylinders 21 arranged in parallel, the output end of the jacking cylinder 21 is towards the first direction, and the two groups of jacking cylinders 21 are configured to act synchronously.

[0018] Further, the output end of the two groups of jacking cylinders 21 is connected with a support 22, and the support 22 connects the fixed part 31 of the inner expansion support assembly 30 through four groups of support columns 23.

[0019] Further, the inner wall expansion abutting end 301 comprises four groups, and the four groups of inner wall expansion abutting ends 301 are arranged at 90 degrees around the fixed part 31;

[0020] The inner wall expansion abutting end 301 is provided with a pad 311.

[0021] Further, the inner expansion support assembly 30 comprises:

[0022] The arrangement component 32 is arranged in parallel with the fixed part 31;

[0023] Each group of inner wall expansion abutting ends 301 is fixedly connected with an L-shaped action arm 310, and the L-shaped action arm 310 has a first rotation point 1001 at the arrangement component 32;

[0024] The traction arm 320 is rotatably connected to one end of the fixed part 31, and the other end of the traction arm 320 is rotatably connected to the L-shaped action arm 310.

[0025] Further, the driving mechanism comprises a driving cylinder 330;

[0026] The fixed end of the driving cylinder 330 is fixedly connected to the center of the arrangement component 32;

[0027] The output end of the driving cylinder 330 is fixedly connected to the center of the fixed part 31.

[0028] Further, the table top 11 is provided with an auxiliary positioning component 40;

[0029] The auxiliary positioning component 40 is symmetrically arranged around the center of the table top 11;

[0030] The auxiliary positioning component 40 comprises:

[0031] A fixed arm 41 is vertically connected to the table top 11;

[0032] A rotating arm 42 is connected to the first end of the fixed arm 41, and a handle 43 is arranged on the rotating arm 42;

[0033] A rotating wheel 44 is arranged at the first end of the rotating arm 42, and a rubber ring is arranged radially on the rotating wheel 44.

[0034] The utility model has the advantages of the following beneficial effects:

[0035] The technical scheme is especially suitable for head welding work of a cylinder, forms stable internal expansion support, guarantees stable welding of the first group of heads, continuously maintains the shape of the cylinder, and guarantees the precision during welding of the cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0036] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0037] Figure 1 It is a structural schematic view of the utility model;

[0038] Figure 2 It is a three-dimensional schematic view of the internal expansion support assembly of the utility model;

[0039] Figure 3 It is a schematic view of the arrangement of the guide column of the utility model.

[0040] Workbench 10, configuration space 101, jacking component 20, internal expansion support assembly 30, internal wall expansion type abutting end 301, cylinder 1;

[0041] Table top 11, configuration port 12, support frame 13, bottom plate 14, guide column 15, annular buffer pad 16;

[0042] Jacking air cylinder 21, support part 22, support column 23, fixed part 31, cushion block 311, arrangement component 32;

[0043] L-shaped action arm 310, first rotating point 1001, traction arm 320, drive air cylinder 330;

[0044] Auxiliary positioning component 40, fixed arm 41, rotating arm 42, handle 43, rotating wheel 44. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. It should be noted that, in the present application, in order to facilitate description, the "left side" in the current view is the "first end", the "right side" is the "second end", the "upper side" is the "first end", and the "lower side" is the "second end". The purpose of such description is to clearly express the technical solutions, and should not be understood as an improper limitation on the technical solutions of the present application.

[0046] The present application solves the technical problem of low welding precision of the roundness of the connection between the air cylinder and the head in the existing automobile pneumatic system, and the lack of effective control equipment. The present application provides a wind cylinder barrel expansion equipment. In the prior art, the barrel 1 is generally a rolled and welded longitudinal seam. After the welding of the barrel 1 is completed, a cross inner support is generally provided to maintain the consistency of the various dimensions of the inner diameter of the barrel 1. However, in actual welding of the head, the cross inner support needs to be removed, otherwise it will bring many inconveniences during welding of the first head. Therefore, the present technical solution provides a wind cylinder barrel expansion equipment to reduce the influence of the shape of the barrel 1 during welding, which specifically comprises:

[0047] The workbench 10 has a configuration space 101, and the configuration space 101 is provided with a jacking component 20. The inner expansion support assembly 30 has an inner wall expansion abutting end 301, and the inner wall expansion abutting end 301 is driven by a driving mechanism so that the inner wall expansion abutting end 301 can contact the inner wall of the barrel 1. The barrel 1 can be arranged above the configuration space 101.

[0048] The jacking component 20 can adjust the height of the inner expansion support assembly 30, so that the position of the inner expansion support assembly 30 in the barrel 1 can be selected. The workbench 10 can be used to support the barrel 1. It should be noted that the length of the barrel 1 of this type of air cylinder is generally about 0.5-1.5 meters.

[0049] In a specific embodiment, as shown in Figures 1-3 The workbench 10 has a table top 11, and the table top 11 forms a configuration port 12. The configuration space 101 is formed below the configuration port 12. The support frame 13 is arranged below the table top 11 to ensure the bearing capacity and stability of the table top 11.

[0050] In a specific embodiment, as shown in Figures 1-3As shown, the configuration space 101 has a bottom plate 14; the table top 11 is provided with guide columns 15, a plurality of guide columns 15 are arranged in a ring array with the center of the workbench 10, the guide columns 15 mainly play a positioning role when the cylinder body 1 is placed in place, and the table top 11 is provided with a ring-shaped buffer pad 16 for pre-supporting the welding edge of the cylinder body 1 to prevent damage caused by rigid contact.

[0051] In a specific embodiment, please refer to Figures 1-3 As shown, the jacking component 20 includes: two groups of jacking cylinders 21 arranged in parallel, the output end of the jacking cylinder 21 is towards the first direction, and the two groups of jacking cylinders 21 are configured to act synchronously.

[0052] In a specific embodiment, please refer to Figure 1 、 2 As shown, the output end of the two groups of jacking cylinders 21 is connected with a support part 22, and the support part 22 is connected with a fixed part 31 of an inner expansion support assembly 30 through four groups of support columns 23.

[0053] In a specific embodiment, please refer to Figure 1 As shown, the inner wall expansion type abutting end 301 includes four groups, and the four groups of inner wall expansion type abutting ends 301 are arranged at 90 degrees with the fixed part 31 as the center; The inner wall expansion type abutting end 301 is provided with a pad 311.

[0054] The inner expansion support assembly 30 includes:

[0055] The arrangement component 32 is arranged in parallel with the fixed part 31;

[0056] Each group of inner wall expansion type abutting ends 301 is fixedly connected with an L-shaped action arm 310, and the L-shaped action arm 310 has a first rotation point 1001 at the arrangement component 32;

[0057] The traction arm 320 is rotatably connected to the fixed part 31 at one end, and the other end of the traction arm 320 is rotatably connected to the L-shaped action arm 310.

[0058] The driving mechanism includes: a driving cylinder 330; the fixed end of the driving cylinder 330 is fixedly connected to the center of the arrangement component 32; and the output end of the driving cylinder 330 is fixedly connected to the center of the fixed part 31.

[0059] As shown in the accompanying Figure 1 When the stroke of the driving cylinder 330 is the smallest, as shown in the accompanying Figure 1 state;

[0060] As shown in the accompanying Figure 2 When the stroke of the driving cylinder 330 is the largest, as shown in the accompanying Figure 2 state.

[0061] In a specific embodiment, please refer toFigure 1 As shown, the table 11 is provided with an auxiliary positioning component 40;

[0062] The auxiliary positioning component 40 is symmetrically arranged with the center of the table 11; the auxiliary positioning component 40 comprises: a fixed arm 41 vertically connected on the table 11; a rotating arm 42 connected at the first end of the fixed arm 41, the rotating arm 42 is provided with a handle 43; the first end of the rotating arm 42 is provided with a rotating wheel 44, the rotating wheel 44 is radially provided with a rubber ring, the rotating arm 42 can be operated, when the inner wall bulging support assembly 30 actually forms the inner bulging support, the auxiliary abutting positioning is carried out, the rotating wheel 44 is radially provided with a rubber ring, which avoids damaging the outer wall of the cylinder 1.

[0063] In summary, the technical scheme is especially suitable for the head welding work of the cylinder 1, forms a stable inner bulging support, ensures the stable welding of the first group of heads, and continuously maintains the shape of the cylinder 1.

[0064] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A wind cylinder body expanding apparatus characterized by, The utility model relates to a kind of lifting device of barrel, including: Workbench (10) with configuration space (101), the jacking component (20) is arranged in the configuration space (101); Internal wall type support assembly (30) with one internal wall type abutting end (301), the internal wall type abutting end (301) is driven by a drive mechanism so that the internal wall type abutting end (301) can contact the inner wall of the barrel (1); The barrel (1) can be arranged above the configuration space (101).

2. The wind-assisted cylinder expansion device of claim 1, wherein, The workbench (10) has table top (11), and the table top (11) is formed with configuration port (12); The configuration port (12) is formed with the configuration space (101) below; Support frame (13) is arranged below the table top (11).

3. The wind-assisted cylinder expansion device of claim 2, wherein, The configuration space (101) has bottom plate (14); The table top (11) is provided with guide column (15), and multiple guide columns (15) are arranged in annular array with the center of the workbench (10).

4. The wind-assisted cylinder expansion device of claim 2, wherein, Annular buffer pad (16) is arranged on the table top (11).

5. The wind-assisted cylinder expansion apparatus of claim 3, wherein, The jacking component (20) includes: Two groups of jacking cylinders (21) arranged in parallel, the output end of the jacking cylinder (21) is towards first direction, and two groups of the jacking cylinder (21) are configured to act synchronously.

6. The wind-assisted cylinder expansion device of claim 5, wherein, The output end of two groups of the jacking cylinder (21) is connected with support part (22), and the support part (22) connects the fixed part (31) of the internal wall type support assembly (30) through four groups of support columns (23).

7. The wind-assisted cylinder expansion device of claim 6, wherein, The internal wall type abutting end (301) includes four groups, and four groups of the internal wall type abutting end (301) are arranged at 90 degrees with the fixed part (31) as center; The internal wall type abutting end (301) is provided with pad block (311).

8. The wind-assisted cylinder expansion device of claim 7, wherein, The internal wall type support assembly (30) includes: Arrangement part (32) is arranged in parallel with the fixed part (31); Each group of the internal wall type abutting end (301) is fixedly connected with an L-shaped action arm (310), and the L-shaped action arm (310) has a first rotation point (1001) in the arrangement part (32); Traction arm (320), one end of the traction arm (320) is rotatably connected with the fixed part (31), and the other end of the traction arm (320) is rotatably connected with the L-shaped action arm (310).

9. The wind-assisted cylinder expansion device of claim 8, wherein, The drive mechanism includes: drive cylinder (330); The fixed end of the drive cylinder (330) is fixedly connected in the center of the arrangement part (32); The output end of the drive cylinder (330) is fixedly connected with the center of the fixed part (31).

10. The wind-assisted cylinder expansion device of claim 2, wherein, The table top (11) is provided with auxiliary positioning part (40); The auxiliary positioning part (40) is symmetrically arranged with the center of the table top (11); The auxiliary positioning part (40) includes: Fixed arm (41) is vertically connected on the table top (11); The first end of the fixed arm (41) is connected with rotating arm (42), and the rotating arm (42) is provided with handle (43); The first end of the rotating arm (42) is provided with rotating wheel (44), and the rotating wheel (44) is radially provided with rubber ring.