Welding device with high-precision rotation function and high-precision rotation component

Abstract

The utility model relates to a welding device with a high-precision rotation function and a high-precision rotation component, and belongs to the technical field of automobile welding. The welding device comprises a high-precision rotary component, and the high-precision rotary component comprises a lower rotary seat, an upper rotary seat, a cover plate, a one-way thrust ball bearing and a deep groove ball bearing. The lower revolving bed comprises a base and a stepped shaft, and the stepped shaft is coaxially mounted above the base; the one-way thrust ball bearing sleeves the lower part of the stepped shaft; a stepped through hole is formed in the center of the upper rotary seat, and the upper rotary seat is coaxially sleeved on the upper part of the stepped shaft through the stepped through hole; the stepped shaft is sleeved with the deep groove ball bearing in the stepped through hole. The cover plate at the upper part in the stepped through hole above the deep groove ball bearing is fixed on the stepped shaft; and the upper rotary seat can rotate around the stepped shaft. The automobile body welding device can drive parts to rotate, carries out all-dimensional effective welding on an automobile body, is high in welding efficiency, and reduces labor intensity.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile welding, in particular to a welding device with a high-precision rotation function and a high-precision rotation component, which are important devices for welding vehicle body parts. Background Art

[0002] Automotive component welding is a crucial component of the vehicle body, and the quality of these components is crucial to vehicle safety. A superior vehicle body not only delivers improved performance but also reflects the vehicle's individuality. Therefore, improving automotive component welding techniques and welding tooling is becoming increasingly important.

[0003] At present, in the process of welding body parts, positioning clamping components are used to clamp the body parts. The clamping structure is simple and can only be used to fix the parts. The operator needs to hold the welding clamp to weld the parts. Usually, the welding postures of parts are horizontal welding and vertical welding. The operator holds the welding clamp and circles around the component assembly to weld according to the number and distribution of weld points of the parts. The operation is inconvenient and the body cannot be effectively welded in all directions. Not only is the welding efficiency low and the welding quality unstable, but the labor intensity of the operator is also increased. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned prior art, the utility model provides a welding device with a high-precision rotation function and a high-precision rotating component, which can drive the components to rotate, avoiding the operator to weld in circles around the components, and performing all-round effective welding of the car body, with high welding efficiency, reduced labor intensity, and conducive to improving welding quality.

[0005] To achieve the above purpose, the specific technical solutions of the present utility model are as follows:

[0006] A high-precision rotating component, comprising a lower rotating seat, an upper rotating seat, a cover plate, a one-way thrust ball bearing, and a deep groove ball bearing;

[0007] The lower slewing seat includes a base and a stepped shaft, and the stepped shaft is coaxially mounted above the base; the one-way thrust ball bearing is sleeved on the lower part of the stepped shaft;

[0008] The center of the upper swivel seat has a stepped through hole, and the stepped through hole is coaxially sleeved on the upper part of the stepped shaft; the deep groove ball bearing is sleeved on the stepped shaft in the stepped through hole;

[0009] The cover plate is fixed on the stepped shaft in the upper part of the stepped through hole above the deep groove ball bearing; and the upper swivel seat can rotate around the stepped shaft.

[0010] Furthermore, the stepped shaft is a shaft consisting of a first shaft segment, a second shaft segment, a third shaft segment and a fourth shaft segment coaxially arranged with diameters gradually decreasing from bottom to top; the one-way thrust ball bearing is placed on the stepped surface of the first shaft segment; and the deep groove ball bearing is mounted on the fourth shaft segment.

[0011] Furthermore, a plurality of locking holes are evenly distributed around the center on the top surface of the fourth shaft section of the stepped shaft, and the cover plate is fixed to the stepped shaft via bolts in the locking holes.

[0012] Furthermore, the upper swivel seat is a stepped swivel seat, and the diameter of the stepped through hole decreases from top to bottom.

[0013] Furthermore, the high-precision rotating component also includes a protective cover; the upper and lower ends of the protective cover both have openings, and the protective cover is coaxially sleeved on the stepped shaft and fixed on the base.

[0014] Furthermore, the cover plate is a flange plate.

[0015] Furthermore, the center of the stepped shaft has a longitudinal hole that passes through from top to bottom; the top of the stepped shaft has an interface coaxial with the longitudinal hole, and the interface is a reserved air source outlet; a horizontal air hole is provided at the lower part of the stepped shaft, and the horizontal air hole is communicated with the longitudinal hole, and the horizontal air hole is a reserved air source inlet.

[0016] Furthermore, a rotary joint is installed on the interface.

[0017] The utility model also discloses a welding device with a high-precision rotation function, which includes a positioning and clamping component, a base plate, a high-precision rotating component, and a support seat; the high-precision rotating component is installed on the support seat, the base plate is fixed to the top of the high-precision rotating component, and the positioning and clamping component is provided on the base plate for positioning and clamping components.

[0018] Furthermore, a plurality of positioning holes are provided on the top surface of the upper rotary seat of the high-precision rotary component at intervals, and the base plate is fixed to the upper rotary seat through the positioning holes and positioning pins.

[0019] Beneficial effects of the utility model:

[0020] The welding device and high-precision rotating component of the utility model with high-precision rotation function have the characteristics of flexible rotation, strong bearing capacity, high rotation accuracy, etc., which can drive the parts to rotate and avoid the operator welding in circles around the parts, thereby achieving high welding efficiency and low labor intensity.

[0021] The utility model can carry 1.5T parts through high-precision rotating parts, realize smooth rotation, and can stop at any angle.

[0022] The utility model can realize the automatic rotation of the high-precision rotary component through the driving assembly, further reduces the manual labor intensity, and improves the welding efficiency.

[0023] The upper rotary seat of the utility model can be flexibly operated relative to the lower rotary seat without any blocking phenomenon, and can be applied to the welding of a series of component products by replacing base plates of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the high-precision rotary component of the utility model;

[0025] Figure 2 This is a top view of the high-precision rotating component of the utility model;

[0026] Figure 3 This is a schematic diagram of the lower swivel seat structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the upper swivel seat structure in the utility model.

[0028] Among them: 1-lower swivel seat, 1.1-base, 1.2-stepped shaft, 1.3-mounting hole, 1.4-locking hole, 1.5-longitudinal hole, 1.6-interface, 1.7-horizontal air hole, 1.8-concave hole, 2-upper swivel seat, 2.1-stepped through hole, 2.2-locating hole, 3-protective cover, 4-cover plate, 901-one-way thrust ball shaft, 902-deep groove ball bearing. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present application, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] The terms "up", "down", "left", "right", "front", and "back" in this application are based on the positional relationships shown in the accompanying drawings. The corresponding positional relationships may vary depending on the drawings, and should not be construed as limiting the scope of protection.

[0031] In this utility model, the terms "installed," "connected," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, integral connection, mechanical connection, electrical connection, or mutual communication. They can also refer to direct connection or indirect connection through an intermediate medium. They can also refer to internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] This embodiment describes a welding device with a high-precision rotation function and a high-precision rotating component, which can drive the components to rotate during the welding process, making it easier for the operator to perform welding operations.

[0033] The welding device of this embodiment includes a positioning and clamping component, a base plate, a high-precision rotating component, a support seat, and a sling. The high-precision rotating component is installed on the support seat, and the base plate is fixed to the top of the high-precision rotating component to support the components. The positioning and clamping component is set on the base plate to position and clamp the components on the base plate. During welding, the positioning and clamping component clamps the components, and the high-precision rotating component drives the components to rotate, moving the welding point to a position that is convenient for the operator to weld, avoiding the operator having to hold the welding gun and circle around the component assembly to weld. The sling is used to hoist large components onto the base plate, or to hoist components to assist in welding.

[0034] The high-precision rotating components of this embodiment are as follows Figure 1 and Figure 2 As shown, it includes a lower swivel seat 1, an upper swivel seat 2, a protective cover 3, a cover plate 4, a one-way thrust ball bearing 901, and a deep groove ball bearing 902. Among them, the lower swivel seat 1 and the upper swivel seat 2 are respectively made of castings or forgings and are processed into swivel seats.

[0035] like Figure 3 As shown, the lower swivel seat 1 includes a base 1.1 and a stepped shaft 1.2, and the stepped shaft 1.2 is coaxially mounted above the base 1.1. A plurality of mounting holes 1.3 are evenly distributed symmetrically around the center on the base 1.1. The protective cover 3 is mounted on the stepped shaft 1.2, and the protective cover 3 is bolted to the base 1.1 through the mounting holes 1.3. The stepped shaft 1.2 is a shaft consisting of a first shaft section, a second shaft section, a third shaft section, and a fourth shaft section coaxially with diameters gradually decreasing from bottom to top, and the upper stepped surface formed by the first shaft section and the second shaft section is compatible with the specifications of the one-way thrust ball bearing 901. The diameter difference between the second shaft section and the third shaft section is 2 to 4 mm, and the fourth shaft section matches the inner diameter of the deep groove ball bearing 902. A plurality of locking holes 1.4 are evenly distributed around the center on the top surface of the fourth shaft section for connection with the cover plate 4.

[0036] The protective cover 3 is a circular structure with openings at both ends. The protective cover 3 is coaxially sleeved on the stepped shaft 1.2. Inside the protective cover 3, the one-way thrust ball bearing 901 is sleeved on the stepped shaft 1.2 with an interference fit. The one-way thrust ball bearing 901 is used to bear axial loads, and the lower bearing seat of the one-way thrust ball bearing 901 is placed on the stepped surface of the first shaft section. The upper bearing seat of the one-way thrust ball bearing 901 is sleeved on the third shaft section of the stepped shaft, and its top surface is flush with the top surface of the protective cover 3.

[0037] The upper rotary seat 2 is coaxially placed above the lower rotary seat 1. Figure 4As shown, the upper swivel seat 2 is a stepped swivel seat, the center of which has a stepped through hole 2.1 with a diameter decreasing from top to bottom. Above the protective cover 3, the upper swivel seat 2 is sleeved on the stepped shaft 1.2 through the stepped through hole 2.1. The upper part of the third shaft section and the fourth shaft section of the stepped shaft 1.2 are located in the stepped through hole 2.1. In the stepped through hole 2.1, the deep groove ball bearing 902 is sleeved on the fourth shaft section of the stepped shaft 1.2. The deep groove ball bearing 902 plays the role of axial positioning and radial load.

[0038] The cover plate 4 is a flange plate. The cover plate 4 is placed on the upper part of the stepped through hole 2.1 above the deep groove ball bearing 902. The cover plate 4 is fixed to the stepped shaft 1.2 through the locking hole 1.4 bolts, pressing the upper rotary seat 2 onto the lower rotary seat 1 and preventing the upper rotary seat 2 from separating from the lower rotary seat 1.

[0039] Multiple positioning holes 2.2 are evenly spaced around the stepped through-hole 2.1 on the top surface of the upper swivel seat 2. Locating pins pass through these holes to secure the base plate to the upper swivel seat 2. Components are secured to the base plate using positioning clamps. The base plate size can be selected based on component specifications to accommodate welding of a wide range of component products.

[0040] The operator uses a lifting device to lift the parts onto the base plate and positions and clamps them using the positioning and clamping components. The operator holds the welding gun to weld the parts. After welding the welding points at the welding position, the operator manually controls the upper rotary seat 2 to rotate around the stepped shaft 1.2, thereby driving the parts above the upper rotary seat 2 to rotate and move the next welding point to the operator's welding position, facilitating the operator's welding operation.

[0041] In order to ensure that the upper swivel seat 2 stops accurately after rotation, this embodiment can install a limit device on the upper end of the outer side of the lower swivel seat 1 according to different working conditions to ensure accurate stopping at any position. The positioning accuracy can reach plus or minus 0.1mm, that is, after the upper swivel seat 2 rotates to the required angle, the limit device is activated to prevent the upper swivel seat 2 from moving.

[0042] The high-precision rotating component of this embodiment may also reserve an air source pipeline to provide air for components that are placed above the high-precision rotating component and require air supply.

[0043] like Figures 1 to 4 As shown, the center of the stepped shaft 1.2 of the lower swivel seat 1 has a longitudinal hole 1.5 extending vertically through it. At the top of the stepped shaft 1.2 is a port 1.6 coaxial with the longitudinal hole 1.5, serving as a reserved air outlet. A horizontal air hole 1.7 is provided on the first section of the stepped shaft 1.2. This horizontal air hole 1.7 communicates with the longitudinal hole 1.5 and serves as a reserved air inlet. Preferably, the diameter of the horizontal air hole 1.7 is 10 mm, which can meet the air supply needs of most components without compromising the structural strength of the stepped shaft 1.2.

[0044] When components mounted above high-precision rotating parts require air, install a rotary joint on port 1.6. Connect the upper end of the rotary joint to the component's air inlet via a pipe. This prevents the pipe from becoming tangled when the high-precision rotating part rotates. Horizontal air hole 1.7 is connected to the air supply device via a pipe.

[0045] The center of the base 1.1 of the lower swivel seat 1 also has a concave hole 1.8, the center of the concave hole 1.8 is connected to the longitudinal hole 1.5, and a drain valve can be installed at the bottom of the longitudinal hole 1.5 to discharge impurities such as liquid or dirt in the air supply pipeline.

[0046] Although the principles of the present invention have been described in detail above in conjunction with the preferred embodiments of the present invention, those skilled in the art should understand that the above embodiments are merely illustrative of the implementation of the present invention and are not intended to limit the scope of the present invention. The details in the embodiments do not constitute a limitation on the scope of the present invention. Without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformations and simple substitutions based on the technical solutions of the present invention fall within the scope of protection of the present invention.

Claims

1. A high-precision rotating component, characterized in that: The high-precision rotary component comprises a lower rotary seat (1), an upper rotary seat (2), a cover plate (4), a one-way thrust ball bearing (901), and a deep groove ball bearing (902); The lower slewing seat (1) comprises a base (1.1) and a stepped shaft (1.2), wherein the stepped shaft (1.2) is coaxially mounted above the base (1.1); the one-way thrust ball bearing (901) is sleeved on the lower part of the stepped shaft (1.2); The center of the upper slewing seat (2) is provided with a stepped through hole (2.1), and the stepped through hole (2.1) is coaxially sleeved on the upper part of the stepped shaft (1.2); the deep groove ball bearing (902) is sleeved on the stepped shaft (1.2) in the stepped through hole (2.1); The cover plate (4) is fixed on the stepped shaft (1.2) in the upper part of the stepped through hole (2.1) above the deep groove ball bearing (902); and the upper swivel seat (2) is capable of rotating around the stepped shaft (1.2).

2. The high-precision rotating component according to claim 1, characterized in that: The stepped shaft (1.2) is a shaft consisting of a first shaft section, a second shaft section, a third shaft section and a fourth shaft section coaxially arranged with diameters gradually decreasing from bottom to top; the one-way thrust ball bearing (901) is placed on the stepped surface of the first shaft section; and the deep groove ball bearing (902) is sleeved on the fourth shaft section.

3. The high-precision rotating component according to claim 2, characterized in that: The top surface of the fourth shaft section of the stepped shaft (1.2) has a plurality of locking holes (1.4) evenly spaced around the center, and the cover plate (4) is bolted to the stepped shaft (1.2) via the locking holes (1.4).

4. The high-precision rotating component according to claim 1, characterized in that: The upper rotary seat (2) is a stepped rotary seat, and the diameter of the stepped through hole (2.1) decreases from top to bottom.

5. The high-precision rotating component according to claim 1, characterized in that: The high-precision rotating component further comprises a protective cover (3); the upper and lower ends of the protective cover (3) both have openings, and the protective cover (3) is coaxially sleeved on the stepped shaft (1.2) and fixed on the base (1.1).

6. The high-precision rotating component according to claim 1, characterized in that: The cover plate (4) is a flange plate.

7. The high-precision rotating component according to claim 1, characterized in that: The center of the stepped shaft (1.2) is provided with a longitudinal hole (1.5) which passes through the stepped shaft (1.2) from top to bottom; the top of the stepped shaft (1.2) is provided with an interface (1.6) which is coaxial with the longitudinal hole (1.5), and the interface (1.6) is a reserved air source outlet; a horizontal air hole (1.7) is provided at the lower part of the stepped shaft (1.2), and the horizontal air hole (1.7) is communicated with the longitudinal hole (1.5), and the horizontal air hole (1.7) is a reserved air source inlet.

8. The high-precision rotating component according to claim 7, characterized in that: A rotary joint is installed on the interface (1.6).

9. A welding device with high-precision rotation function, characterized in that: The welding device includes a positioning and clamping component, a base plate, a high-precision rotating component according to any one of claims 1 to 8, and a support seat; the high-precision rotating component is installed on the support seat, the base plate is fixed to the top of the high-precision rotating component, and the positioning and clamping component is provided on the base plate for positioning and clamping the components.

10. The welding device with high-precision rotation function according to claim 9, characterized in that: A plurality of positioning holes (2.2) are arranged at intervals around the top surface of the upper rotating seat (2) of the high-precision rotating component, and the base plate is fixed to the upper rotating seat (2) via the positioning holes (2.2) and positioning pins.

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