Rotating arm joint paint removing protection tool and framework paint removing protection tool assembly

Abstract

The utility model relates to the technical field of shot blasting processes, in particular to a rotating arm joint paint removing protection tool and a framework paint removing protection tool assembly.The rotating arm joint paint removing protection tool comprises a connecting assembly and two protection pieces, and first connecting holes are formed in the two protection pieces correspondingly; the connecting assembly is used for penetrating through the space between the connecting part and the two mounting base parts, the protection pieces are connected with the connecting assembly through the first connecting holes, and the two protection pieces are used for covering the two machining faces in a one-to-one correspondence mode. The utility model aims at providing a rotating arm joint paint removing protection tool and a framework paint removing protection tool assembly aiming at at least one technical problem related in the background technology.

Description

Technical Field

[0001] This application relates to the field of shot blasting technology, and more specifically, to a protective fixture for paint removal from a rotating arm node and a component for paint removal protection from a frame. Background Technology

[0002] During the maintenance of urban rail vehicle frames, paint stripping with paint remover and sandblasting with sandblasting equipment are commonly used to completely remove the paint from the frame surface. Under current technology, manual paint stripping of the frame is required by operators. If paint remover is used alone, the workload is large, the working environment is poor, and the production efficiency is low. If sandblasting equipment is used directly, it will damage the machined surfaces on the frame axle box swing arm node mounting base, and quality problems are very likely to occur, requiring rework and repair. Utility Model Content

[0003] The purpose of this application is to provide a protective tooling for paint peeling off a swing arm node and a protective tooling assembly for paint peeling off a frame, addressing at least one of the technical problems mentioned in the background art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] One aspect of this application provides a paint stripping protection fixture for a swing arm node, applied to a frame swing arm node. The frame swing arm node includes a U-shaped unit, the U-shaped unit including a connecting portion and two mounting portions, the two mounting portions being connected by the connecting portion to form a U-shape, the two mounting portions being arranged in a first direction, and the U-shaped unit having machined surfaces on both sides in a second direction. The opening direction of the U-shaped unit is a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. The paint stripping protection fixture for the swing arm node includes a connecting assembly and two protective members, each of the two protective members having a first connecting hole. The connecting assembly is used to pass through the connecting portion and the two mounting portions, and the protective members are connected to the connecting assembly through the first connecting holes. The two protective members are used to cover the two machined surfaces one-to-one.

[0006] Optionally, the paint stripping protection fixture for the swing arm node provided in this application further includes two elastic pads. The two elastic pads are used to directly contact the two machined surfaces in a one-to-one correspondence. The two elastic pads are located between the two protective components. The two protective components are used to make pressure contact with the two elastic pads in a one-to-one correspondence.

[0007] The beneficial effects of this technical solution are as follows: In this way, the protective component contacts the machined surface through the elastic gasket. The elastic gasket plays an isolation role, making it less likely for the protective component to damage the machined surface during installation. The elastic gasket also plays a buffering role, which buffers the impact on the protective component during sandblasting, making it less likely for the protective component to damage the machined surface under the impact.

[0008] Optionally, a second connecting hole is formed on the elastic gasket, and the two elastic gaskets are used to cover the two machined surfaces in a one-to-one correspondence, and the connecting assembly passes through the second connecting hole on the two elastic gaskets.

[0009] The beneficial effect of this technical solution is that, in this way, there are elastic pads at various positions on the machined surface for isolation and buffering, making it less likely for the protective components to damage the machined surface.

[0010] Optionally, the protective member has a protective plane facing the U-shaped unit, which covers the machined surface and is in contact with the elastic gasket.

[0011] The beneficial effects of this technical solution are as follows: the protective component adopts a protective plane, which makes the protective component, elastic gasket and machined surface fit more tightly, making it difficult for sand particles to enter between the machined surface and the protective component and cause damage to the machined surface.

[0012] Optionally, the area of ​​the elastic pad is not less than the area of ​​the protective plane, and the projection of the protective plane in the second direction is located within the elastic pad.

[0013] The beneficial effect of this technical solution is that the outer edge of the elastic gasket at least coincides with the outer edge of the protective plane, which further improves the tightness of the fit between the protective component, the elastic gasket and the machined surface, and reduces the chance of damage to the machined surface during sandblasting.

[0014] Optionally, the two elastic gaskets are fixed to the protective planes of the two protective components in a one-to-one correspondence.

[0015] The beneficial effect of this technical solution is that it facilitates the movement of the elastic gasket and protective component as a whole during the disassembly and assembly of the paint stripping protection fixture at the swing arm node, thereby improving the disassembly and assembly efficiency of the paint stripping protection fixture at the swing arm node.

[0016] Optionally, the connecting assembly includes bolts and nuts for mutual threaded engagement.

[0017] The beneficial effects of this technical solution are that it not only ensures the firmness of the two protective components connected by the connector, but also facilitates the disassembly and assembly of the paint removal protection tool for the swing arm node.

[0018] Optionally, a rotating arm node threaded hole is formed on both of the mounting bases, the axis of the rotating arm node threaded hole is parallel to the third direction, and the rotating arm node paint stripping protection tooling also includes two process bolts, which are used to mate with the two rotating arm node threaded holes in a one-to-one correspondence.

[0019] The beneficial effect of this technical solution is that during the paint stripping process, the threaded holes of the rotating arm nodes on the mounting base may avoid sandblasting damage. Before sandblasting, the two process bolts are installed into the two threaded holes of the rotating arm nodes one by one, which can prevent sand particles from entering the threaded holes of the rotating arm nodes and causing damage to them.

[0020] Optionally, the frame swing arm node further includes a node seat unit, on which two through holes are formed. The two through holes are coaxially arranged to correspond one-to-one with the threaded holes of the two swing arm nodes. The two process bolts are used to pass through the two through holes and connect to the threaded holes of the two swing arm nodes respectively.

[0021] The beneficial effects of this technical solution are as follows: In this way, not only can the port edges of the threaded holes of the two rotating arm nodes be covered by the node seat unit, making it less likely to damage the port edges of the threaded holes of the rotating arm nodes during the sandblasting process, but the node seat unit can also be de-painted at the same time, improving the de-painting efficiency.

[0022] Another aspect of this application provides a frame paint peeling protection tooling assembly including the frame swing arm node and the swing arm node paint peeling protection tooling provided in this application, wherein the swing arm node paint peeling protection tooling is installed on the U-shaped unit.

[0023] Optionally, the frame paint stripping protection tooling assembly provided in this application further includes a motor mounting base and a motor mounting base paint stripping protection tooling. A motor mounting base threaded hole is formed on the motor mounting base. The motor mounting base paint stripping protection tooling includes a channel steel protective component and a process plug. A mating through hole is formed on the channel steel protective component. The mating through hole is located at the bottom of the channel of the channel steel protective component. The motor mounting base extends into the channel steel protective component. The process plug passes through the mating through hole and is threadedly engaged with the motor mounting base threaded hole.

[0024] The beneficial effects of this technical solution are as follows: by using the process plug and the threaded hole of the motor mount, the process plug can protect the threaded hole of the motor mount during the sandblasting process. At the same time, since the motor mount extends into the channel steel protective component, the surface around the threaded hole of the motor mount and the side of the motor mount covered by the channel steel protective component can be protected by the channel steel protective component.

[0025] The technical solution provided in this application can achieve at least one of the following beneficial effects:

[0026] The paint stripping protection fixture and frame paint stripping protection fixture assembly provided in this application cover the machined surface with two protective components. The two protective components are connected together by a connecting component that passes through the connecting part and the two mounting parts. Thus, during the process of removing paint with paint stripper using sandblasting equipment, the two protective components protect the machined surfaces on both sides of the U-shaped unit, making it difficult for the two machined surfaces to be damaged during sandblasting, reducing the probability of quality problems and rework caused by sandblasting.

[0027] The additional technical features and advantages of this application will become more apparent from the following description or from practical application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the specific embodiments of this application, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a front view structural schematic diagram of one embodiment of the paint stripping protection tool for the rotating arm node provided in this application.

[0030] Figure 2 This is a partial left-side structural schematic diagram of one embodiment of the paint stripping protection tooling assembly provided in this application.

[0031] Figure 3 A partial left-side structural schematic diagram of another embodiment of the paint stripping protection tooling assembly provided in this application;

[0032] Figure 4 A partial left-side structural schematic diagram of one embodiment of the frame swing arm node provided in this application;

[0033] Figure 5 A three-dimensional structural schematic diagram of one embodiment of the paint stripping protection tool for motor mounting brackets provided in this application;

[0034] Figure 6 A partial top view of one embodiment of the motor mounting bracket provided in this application;

[0035] Figure 7 This is a partial front view schematic diagram of one embodiment of the paint stripping protection tooling assembly provided in this application.

[0036] Figure label:

[0037] 01. Protective components; 02. Nuts;

[0038] 03. Bolts; 04. U-shaped units;

[0039] 05. Connecting components; 06. Process bolts;

[0040] 07. Node seat element; 08. Machined surface;

[0041] 9. Threaded hole at the pivot joint; 10. Mounting base;

[0042] 11. Connecting part; 12. Process screw plug;

[0043] 13. Channel steel protective components; 14. Motor mounting bracket;

[0044] 15. Through hole; 16. Threaded hole for motor mount. Detailed Implementation

[0045] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0048] like Figures 1 to 4As shown, one aspect of this application provides a protective fixture for paint stripping on a swing arm node, applied to a swing arm node of a frame. The swing arm node includes a U-shaped unit 04, which includes a connecting portion 11 and two mounting portions 10. The two mounting portions 10 are connected by the connecting portion 11 to form a U-shape. The two mounting portions 10 are arranged in a first direction. The U-shaped unit 04 has machined surfaces 08 on both sides in a second direction. The opening direction of the U-shaped unit 04 is a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. The protective fixture for paint stripping on the swing arm node includes a connecting assembly 05 and two protective members 01. Each of the two protective members 01 is provided with a first connecting hole. The connecting assembly 05 is used to pass through the connecting portion 11 and the two mounting portions 10. The protective members 01 are connected to the connecting assembly 05 through the first connecting hole. The two protective members 01 are used to cover the two machined surfaces 08 one by one.

[0049] The paint stripping protection fixture for the swing arm node provided in this application covers the machined surface 08 with two protective components 01. The two protective components 01 are connected together by a connecting component 05 passing through the connecting part 11 and the two mounting parts 10. Thus, during the process of removing paint with paint stripper using sandblasting equipment, the two protective components 01 protect the machined surfaces 08 on both sides of the U-shaped unit 04, making it difficult for the two machined surfaces 08 to be damaged during sandblasting. This reduces the probability of quality problems and rework / repair of the machined surfaces 08 caused by sandblasting.

[0050] Optionally, the paint stripping protection fixture for the swing arm node provided in this embodiment further includes two elastic gaskets. The two elastic gaskets are used to directly contact the two machined surfaces 08 in a one-to-one correspondence. The two elastic gaskets are located between the two protective members 01, and the two protective members 01 are used to make pressure contact with the two elastic gaskets in a one-to-one correspondence. In this way, the protective member 01 contacts the machined surface 08 through the elastic gaskets. The elastic gaskets act as an isolation layer, making it less likely for the protective member 01 to damage the machined surface 08 during installation. The elastic gaskets also act as a buffer, cushioning the impact on the protective member 01 during sandblasting, making it less likely for the protective member 01 to damage the machined surface 08 under the impact.

[0051] Optionally, a second connecting hole is formed on the elastic gasket, and the two elastic gaskets are used to cover the two machined surfaces 08 in a one-to-one correspondence. The connecting assembly 05 passes through the second connecting hole on the two elastic gaskets. In this way, elastic gaskets are provided for isolation and buffering at various positions on the machined surface 08, making it less likely for the protective component 01 to damage the machined surface 08. Of course, as long as the protective component 01 does not directly contact the machined surface 08, the elastic gasket may only cover a portion of the machined surface 08.

[0052] Optionally, the surface of the protective component 01 facing the U-shaped unit 04 is a protective plane, which covers the machined surface 08 and is in contact with the elastic gasket. The protective plane of the protective component 01 ensures a tighter fit between the protective component 01, the elastic gasket, and the machined surface 08, making it difficult for sand particles to enter between the machined surface 08 and the protective component 01 and damage the machined surface 08. Of course, a wavy surface can also be used instead of a protective plane.

[0053] Optionally, the area of ​​the elastic gasket is not less than the area of ​​the protective plane, and the projection of the protective plane in the second direction lies within the elastic gasket. That is, the outer edge of the elastic gasket at least coincides with the outer edge of the protective plane, which further improves the tightness of the fit between the protective component 01, the elastic gasket, and the machined surface 08, reducing the probability of damage to the machined surface 08 during sandblasting.

[0054] Optionally, the two elastic gaskets are fixed to the protective planes of the two protective components 01 in a one-to-one correspondence. This facilitates the movement of the elastic gaskets and protective components 01 as a whole during the assembly and disassembly of the paint stripping protection fixture for the swing arm joint, improving the assembly and disassembly efficiency of the paint stripping protection fixture for the swing arm joint. Of course, the elastic gaskets and protective components 01 can also be set separately.

[0055] Optionally, the connecting assembly 05 includes bolts 03 and nuts 02 for mutual threaded engagement. This ensures both the firmness of the two protective components 01 connected by the connecting member and facilitates the assembly and disassembly of the paint stripping protection fixture for the swing arm node. In this embodiment, the connecting assembly 05 includes a rod-shaped connecting member and a fixing member. The fixing member is detachably connected to the rod-shaped connecting member. After the rod-shaped connecting member passes through each of the first connecting holes and each of the second connecting holes, the fixing member is fixedly connected to the rod-shaped connecting member to define the position of the rod-shaped connecting member.

[0056] Optionally, each of the two mounting base portions 10 has a pivot node threaded hole 09, the axis of which is parallel to the third direction. The pivot node paint stripping protective fixture also includes two process bolts 06, which are used to mate with the two pivot node threaded holes 09 in a one-to-one correspondence. During the paint stripping process, the pivot node threaded holes 09 on the mounting base portion 10 may prevent sandblasting damage. Before sandblasting, installing the two process bolts 06 into the two pivot node threaded holes 09 in a one-to-one correspondence can prevent sand particles from entering the pivot node threaded holes 09 and causing damage.

[0057] Optionally, the frame swing arm node further includes a node seat unit 07, on which two through holes are formed. These two through holes are coaxially arranged corresponding to the two swing arm node threaded holes 09. Two process bolts 06 are used to pass through the two through holes and connect to the two swing arm node threaded holes 09 respectively. This not only covers the port edges of the two swing arm node threaded holes 09 through the node seat unit 07, preventing damage to the port edges of the swing arm node threaded holes 09 during sandblasting, but also allows for simultaneous paint removal of the node seat unit 07, improving paint removal efficiency. In this embodiment, the protective component 01 is preferably a plate.

[0058] Another aspect of this application provides a frame paint peeling protection tooling assembly including the frame swing arm node and the swing arm node paint peeling protection tooling provided in the embodiments of this application, wherein the swing arm node paint peeling protection tooling is installed on the U-shaped unit 04.

[0059] The frame paint stripping protection tooling assembly provided in this application is implemented using the swing arm node paint stripping protection tooling provided in this application. Two protective parts 01 cover the machined surface 08, and the two protective parts 01 are connected together by a connecting component 05 passing through the connecting part 11 and the two mounting parts 10. Thus, during the process of removing paint with paint stripper using sandblasting equipment, the two protective parts 01 protect the machined surfaces 08 on both sides of the U-shaped unit 04, making it difficult for the two machined surfaces 08 to be damaged during sandblasting. This reduces the probability of quality problems and rework caused by sandblasting on the machined surfaces 08, achieving the goal of multi-angle sandblasting without damaging important parts.

[0060] like Figures 5 to 7As shown, optionally, the frame paint stripping protection tooling assembly provided in this application embodiment further includes a motor mounting base 14 and a motor mounting base paint stripping protection tooling. A motor mounting base threaded hole 16 is formed on the motor mounting base 14. The motor mounting base paint stripping protection tooling includes a channel steel protective component 13 and a process plug 12. A mating through hole 15 is formed on the channel steel protective component 13, located at the bottom of the channel steel protective component 13. The motor mounting base 14 extends into the channel steel protective component 13, and the process plug 12 passes through the mating through hole 15 and is threadedly engaged with the motor mounting base threaded hole 16. Thus, by using the process plug 12 with the motor mounting base threaded hole 16, the process plug 12 can protect the motor mounting base threaded hole 16 during sandblasting. Simultaneously, since the motor mounting base 14 extends into the channel steel protective component 13, the surface around the motor mounting base threaded hole 16 and the side of the motor mounting base 14 covered by the channel steel protective component 13 can be protected by the channel steel protective component 13. Understandably, the urban rail vehicle frame includes the motor mounting base 14 and the frame swing arm node.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A protective fixture for paint peeling off rotating arm joints, characterized in that, This invention relates to a frame swing arm node, which includes a U-shaped unit. The U-shaped unit comprises a connecting portion and two mounting portions. The two mounting portions are connected by the connecting portion to form a U-shape. The two mounting portions are arranged in a first direction. The U-shaped unit has machined surfaces on both sides in a second direction. The opening direction of the U-shaped unit is a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. The swing arm node paint stripping protection fixture includes a connecting assembly and two protective members. Each of the two protective members has a first connecting hole. The connecting assembly passes through the connecting portion and the two mounting portions. The protective members are connected to the connecting assembly through the first connecting holes. The two protective members cover the two machined surfaces one-to-one.

2. The protective fixture for paint stripping from the rotating arm joint according to claim 1, characterized in that, It also includes two elastic gaskets, which are used to directly contact the two machined surfaces in a one-to-one correspondence. The two elastic gaskets are located between the two protective members, and the two protective members are used to make pressure contact with the two elastic gaskets in a one-to-one correspondence.

3. The protective fixture for paint stripping from the rotating arm joint according to claim 2, characterized in that, A second connection hole is formed on the elastic gasket, and the two elastic gaskets are used to cover the two machined surfaces in a one-to-one correspondence. The connecting assembly passes through the second connection hole on the two elastic gaskets.

4. The protective fixture for paint peeling off rotating arm nodes according to claim 3, characterized in that, The protective component has a protective plane facing the U-shaped unit, which covers the machined surface and is in contact with the elastic gasket.

5. The protective fixture for paint peeling off rotating arm nodes according to claim 4, characterized in that, The area of ​​the elastic pad is not less than the area of ​​the protective plane, and the projection of the protective plane in the second direction is located within the elastic pad.

6. The protective fixture for paint peeling off rotating arm nodes according to claim 4, characterized in that, The two elastic gaskets are fixed to the protective planes of the two protective components in a one-to-one correspondence.

7. The protective fixture for paint stripping from the rotating arm joint according to any one of claims 1 to 6, characterized in that, Both mounting bases have threaded holes for rotating arm nodes, the axial direction of which is parallel to the third direction. The paint stripping protection fixture for rotating arm nodes also includes two process bolts, which are used to mate with the two threaded holes for rotating arm nodes in a one-to-one correspondence.

8. The protective fixture for paint peeling off rotating arm nodes according to claim 7, characterized in that, The frame swing arm node also includes a node seat unit, on which two through holes are formed. The two through holes are coaxially arranged to correspond one-to-one with the threaded holes of the two swing arm nodes. The two process bolts are used to pass through the two through holes and connect to the threaded holes of the two swing arm nodes respectively.

9. A frame paint peeling protection tooling assembly, characterized in that, It includes the frame swing arm node and the swing arm node paint stripping protection fixture as described in any one of claims 1 to 8, wherein the swing arm node paint stripping protection fixture is installed on the U-shaped unit.

10. The frame paint stripping protective tooling assembly according to claim 9, characterized in that, It also includes a motor mounting base and a motor mounting base paint stripping protection fixture. A motor mounting base threaded hole is formed on the motor mounting base. The motor mounting base paint stripping protection fixture includes a channel steel protective component and a process screw plug. A mating through hole is formed on the channel steel protective component. The mating through hole is located at the bottom of the channel of the channel steel protective component. The motor mounting base extends into the channel steel protective component. The process screw plug passes through the mating through hole and is threadedly engaged with the motor mounting base threaded hole.

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