A grating ruler anti-abrasion structure of a semi-automatic welding gun

Abstract

The application provides a grating ruler anti-abrasion structure of a semi-automatic welding gun, which comprises a cylinder sleeve and a cylinder. The cylinder sleeve comprises a sleeving part and a mounting part, and a linear bearing is fixedly connected in the sleeving part. The cylinder is arranged in the cylinder sleeve, and comprises a cylinder body and a connecting head. The cylinder body is sleeved with the linear bearing, and the connecting head is located in the mounting part. By arranging a linear bearing in the sleeving part of the cylinder sleeve, the cylinder body of the cylinder is sleeved with the linear bearing during installation. Under the action of the linear bearing during use, the cylinder cannot rotate relative to the cylinder sleeve, so that the scale film on the grating ruler assembly and the inner wall of the light reading code slot cannot be in contact due to the relative rotation between the cylinder and the cylinder sleeve, the friction of the grating ruler during use is reduced, and the service life of the grating ruler assembly is prolonged.

Description

Technical Field

[0001] This application belongs to the field of semi-automatic welding nail gun technology, and specifically relates to an anti-wear structure for the grating ruler of a semi-automatic welding nail gun. Background Technology

[0002] A semi-automatic welding stud gun is a device used for welding studs. During operation, a grating displacement sensor is typically used to measure the position of the cylinder inside the gun that drives the stud to draw the arc. The grating displacement sensor usually consists of a grating ruler assembly and a code reader assembly. Upon installation, one end of the grating ruler assembly is fixed to the cylinder, and the other end has a graduated film. The code reader assembly is fixed to the outer wall of the cylinder sleeve. The code reader assembly also has a light-emitting code reading slot, in which the graduated film is suspended and inserted. During operation, the grating ruler assembly moves with the cylinder, causing the graduated film to move relative to the cylinder within the light-emitting code reading slot. The code reader assembly detects this displacement distance to determine the cylinder's movement distance. However, in actual use, when the cylinder is reciprocating linearly, there will be a slight radial relative deflection between it and the cylinder sleeve. This will cause the scale film to come into contact with the inner wall of the light-emitting code slot, which will trigger a fault alarm. If continued use continues, the friction between the scale film and the inner wall of the light-emitting code slot will cause wear on the scale film, making the scale on the scale film scratched and affecting its use. This will greatly reduce the service life of the grating ruler assembly. Utility Model Content

[0003] This application aims to address the technical problems in the prior art, such as the slight radial relative deflection that easily occurs when the cylinder and cylinder sleeve slide relative to each other, leading to contact between the grating ruler and the inner wall of the optical encoder slot, increasing friction on the scale film during use, and thus reducing the service life of the grating ruler assembly. It proposes an anti-wear structure for the grating ruler of a semi-automatic welding gun, which can effectively prevent wear on the scale film during use.

[0004] To achieve the above objectives, this application adopts the following technical solution: A wear-resistant structure for the grating ruler of a semi-automatic welding nail gun includes a cylinder sleeve and a cylinder; The cylinder sleeve includes a sleeve portion and a mounting portion, and a linear bearing is fixedly engaged inside the sleeve portion; The cylinder is disposed inside the cylinder sleeve. The cylinder includes a cylinder body and a connector. The cylinder body is sleeved with the linear bearing, and the connector is located inside the mounting portion.

[0005] Furthermore, the linear bearing used is a linear ball bearing of model LBBR 30-2LS.

[0006] Furthermore, the linear bearing and the sleeve portion are seamlessly fitted.

[0007] Furthermore, the inner wall of the linear bearing is coated with a layer of lubricating oil.

[0008] Furthermore, the outer wall of the cylinder body is provided with an insulating layer and a metal sleeve layer in sequence.

[0009] Furthermore, the cylinder also includes a conductive head, which is disposed at the end of the cylinder body away from the connector, and an insulating element is provided between the conductive head and the metal sleeve to ensure that current cannot be conducted between the conductive head and the metal sleeve.

[0010] Furthermore, a reserved opening is provided on one side wall of the mounting part, and a conductive grating ruler sliding limit cover insertion opening is provided on the connector head. The semi-automatic welding nail gun also includes a grating ruler sliding limit cover, a conductive grating ruler brass mounting base, a grating ruler assembly, and a code reader assembly. The grating ruler sliding limit cover is fixed to the mounting part and covers the reserved opening. A sliding hole is provided on the grating ruler sliding limit cover at a position corresponding to the grating ruler sliding limit cover insertion opening. One end of the grating ruler brass mounting base is fixedly connected to the grating ruler sliding limit cover insertion opening, and the other end passes through the sliding hole and is located outside the mounting part. One end of the grating ruler assembly is fixedly connected to the end of the grating ruler brass mounting base located outside the mounting part, and the other end is provided with a scale film. The code reader assembly is fixed to the outer wall of the mounting part, and the code reader assembly is provided with a light-emitting code reading slot with openings at both ends. The scale film is suspended and inserted into the light-emitting code reading slot.

[0011] Furthermore, the sliding limit cover of the grating ruler is made of insulating material.

[0012] Furthermore, the width of the optical code reading slot is 1~2mm.

[0013] The beneficial effects of this application are: This application incorporates a linear bearing inside the cylinder sleeve's fitting portion. During installation, the cylinder body is fitted together with the linear bearing. In use, the linear bearing effectively prevents the cylinder from rotating during linear motion relative to the cylinder sleeve. This effectively avoids the situation where relative rotation between the cylinder and cylinder sleeve causes contact between the scale film on the grating ruler assembly and the inner wall of the optical code reading slot, increasing friction during use and thus reducing the lifespan of the grating ruler assembly.

[0014] This application, by coating a layer of lubricating oil on the inner wall of the linear bearing and by providing a metal sleeve on the outer wall of the cylinder, can effectively reduce the frictional force during relative movement between the cylinder and the cylinder sleeve, and also effectively reduce damage to the insulation layer. Furthermore, by providing an insulating element between the conductive head and the metal sleeve, this application can effectively ensure that no current conduction occurs between the metal sleeves of the conductive head. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of cylinder sleeve and cylinder assembly is provided for embodiments of this application; Figure 2 This is a schematic diagram of the cylinder structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the automatic welding nail gun provided in an embodiment of this application.

[0017] Explanation of icon numbers: Cylinder sleeve 1, sleeve part 1-1, mounting part 1-2, reserved opening 1-3, cylinder 2, cylinder body 2-1, connector 2-2, metal sleeve 2-3, grating ruler sliding limit cover embedding opening 2-4, conductive head 2-5, insulating part 2-6, grating ruler sliding limit cover 3, sliding hole 3-1, grating ruler brass mounting base 4, grating ruler assembly 5, code reader assembly 6, light-emitting code reading slot 6-1. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0021] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] This application provides an anti-wear structure for the grating ruler of a semi-automatic welding nail gun, such as... Figure 1 and Figure 2 As shown, it includes cylinder sleeve 1 and cylinder 2; The cylinder sleeve 1 includes a sleeve portion 1-1 and a mounting portion 1-2. A linear bearing (not shown in the figure) is fixedly engaged inside the sleeve portion 1-1. The linear bearing is an LBBR 30-2LS linear ball bearing, and the linear bearing and the sleeve portion 1-1 are seamlessly fitted together. The inner wall of the linear bearing is coated with a lubricating oil layer. A pre-reserved opening 1-3 is provided on one side wall of the mounting portion 1-2.

[0024] The cylinder 2 is disposed within the cylinder sleeve 1. The cylinder 2 includes a cylinder body 2-1 and a connector 2-2. During installation, the cylinder body 2-1 is sleeved with the linear bearing, and the outer diameter of the cylinder body 2-1 is adapted to the inner diameter of the linear bearing, so that the outer surface of the rolling steel ball on the inner side of the linear bearing just abuts against the outer wall of the cylinder body 2-1. In use, the linear bearing is used to limit the cylinder 2, so that it can only perform linear reciprocating motion when moving relative to the cylinder sleeve 1, avoiding relative rotation between the cylinder 2 and the cylinder sleeve 1. The outer wall of the cylinder body is provided with an insulating layer (not shown in the figure) and a metal sleeve 2-3 in sequence. The metal sleeve 2-3 can effectively prevent the insulation layer from being worn due to the relative movement between the cylinder 2 and the cylinder sleeve 1 during use. The connector 2-2 is located within the mounting part 1-2. The connector 2-2 is provided with a conductive grating ruler sliding limit cover insertion port 2-4 at the position corresponding to the reserved opening 1-3. The cylinder 2 also includes a conductive head 2-5, which is located at the end of the cylinder body 2-1 away from the connector 2-2. An insulating element 2-6 is provided between the conductive head 2-5 and the metal sleeve 2-3 to ensure that current cannot be conducted between the conductive head 2-5 and the metal sleeve 2-3.

[0025] like Figure 3As shown, the semi-automatic welding nail gun also includes a grating ruler sliding limit cover 3, a conductive grating ruler brass mounting base 4, a grating ruler assembly 5, and a code reader assembly 6; the grating ruler sliding limit cover 3 is made of insulating material, the grating ruler sliding limit cover 3 is fixed on the mounting part 1-2 and covers the reserved opening 1-3, and the grating ruler sliding limit cover 3 is provided with a sliding hole 3-1 at the position corresponding to the conductive grating ruler sliding limit cover insertion opening 2-4, the sliding hole 3-1 can be a strip-shaped sliding hole. One end of the brass mounting base 4 of the grating ruler is fixedly connected to the insertion port 2-4 of the sliding limit cover of the grating ruler, and the other end passes through the sliding hole 3-1 and is located outside the mounting part 1-2. One end of the grating ruler assembly 5 is fixedly connected to the end of the brass mounting base 4 located outside the mounting part 1-2, and the other end is provided with a scale film (not shown in the figure). The code reader assembly 6 is fixed to the outer wall of the mounting part 1-2. The code reader assembly 6 is provided with a light-emitting code reading groove 6-1 with openings at both ends. The scale film is suspended and inserted into the light-emitting code reading groove 6-1, that is, the scale film is located in the light-emitting code reading groove 6-1 but does not contact the inner wall of the light-emitting code reading groove 6-1. The groove width of the light-emitting code reading groove 6-1 can be set to 1~2mm, for example 1.1mm, 1.2mm, 1.3mm, 1.4mm, etc.

[0026] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0027] The above provides a detailed description of the anti-wear structure of the grating ruler of a semi-automatic welding nail gun provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. 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 of the technical features. These 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 wear-resistant structure for the grating ruler of a semi-automatic welding nail gun, characterized in that: Includes cylinder sleeve (1) and cylinder (2); The cylinder sleeve (1) includes a sleeve part (1-1) and a mounting part (1-2), and a linear bearing is fixedly engaged inside the sleeve part (1-1); The cylinder (2) is disposed inside the cylinder sleeve (1). The cylinder (2) includes a cylinder body (2-1) and a connector (2-2). The cylinder body (2-1) is sleeved with the linear bearing, and the connector (2-2) is located inside the mounting part (1-2).

2. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 1, characterized in that: The linear bearing used is a linear ball bearing with the model number LBBR 30-2LS.

3. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 1, characterized in that: The linear bearing and the sleeve are seamlessly fitted.

4. The anti-wear structure of the grating ruler of the semi-automatic welding nail gun as described in claim 1, characterized in that: The inner wall of the linear bearing is coated with a layer of lubricating oil.

5. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 1, characterized in that: The outer wall of the cylinder body (2-1) is provided with an insulating layer and a metal sleeve (2-3) in sequence.

6. The anti-wear structure of the grating ruler of the semi-automatic welding nail gun as described in claim 5, characterized in that: The cylinder (2) also includes a conductive head (2-5), which is located at the end of the cylinder body (2-1) away from the connector (2-2), and an insulating element (2-6) is provided between the conductive head (2-5) and the metal sleeve (2-3).

7. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 1, characterized in that: The mounting part (1-2) has a reserved opening (1-3) on one side wall, and the connector (2-2) has a conductive grating ruler sliding limit cover insertion opening (2-4). The semi-automatic welding nail gun also includes a grating ruler sliding limit cover (3), a conductive grating ruler brass mounting base (4), a grating ruler assembly (5), and a code reader assembly (6). The grating ruler sliding limit cover (3) is fixed on the mounting part (1-2) and covers the reserved opening (1-3). The grating ruler sliding limit cover (3) has a sliding hole (3-1) at the position corresponding to the grating ruler sliding limit cover insertion opening (2-4). One end of the brass mounting base (4) of the grating ruler is fixedly connected to the insertion port (2-4) of the sliding limit cover of the grating ruler, and the other end passes through the sliding hole (3-1) and is located outside the mounting part (1-2). One end of the grating ruler assembly (5) is fixedly connected to the end of the brass mounting base (4) of the grating ruler located outside the mounting part (1-2), and the other end is provided with a scale film. The code reader assembly (6) is fixed to the outer wall of the mounting part (1-2). The code reader assembly (6) is provided with a light-emitting code reading groove (6-1) with openings at both ends. The scale film is suspended and inserted into the light-emitting code reading groove (6-1).

8. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 7, characterized in that: The sliding limit cover (3) of the grating ruler is made of insulating material.

9. The anti-wear structure of the grating ruler of the semi-automatic welding gun as described in claim 7, characterized in that: The width of the optical code reading slot (6-1) is 1~2mm.

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