Welding tool

Abstract

The utility model discloses a welding tool. The welding tool comprises a base; the first positioning assembly is connected to the base, the first positioning assembly comprises a positioning part and a pressing part, the positioning part is used for positioning the middle of the shaft seat, and the pressing part is used for pressing the shaft seat; and the second positioning assembly is connected to the base and located on the outer side of the first positioning assembly, the second positioning assembly comprises a clamping component, and the clamping component is used for clamping the two ends of the sleeve so as to drive the sleeve to be aligned with the shaft seat in the center and abut against the side face of the shaft seat. Through an accurate positioning and automatic clamping mechanism, accurate centering alignment and stable fixation of the shaft seat and the sleeve are realized, the quality stability of a welding interface is ensured, the process steps are effectively reduced, the production time is shortened, personal errors are reduced, the consistency and the reliability of products are improved, and the efficiency and the precision of welding operation are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary equipment technology, and in particular to a welding fixture. Background Technology

[0002] Traditional welding fixtures typically consist of simple clamps and positioning devices, primarily used to fix and align the parts to be welded. However, when faced with welding tasks involving complex geometries or high precision requirements, such as welding shaft seats and sleeves, the lack of precise automatic centering and clamping mechanisms makes it difficult to ensure accurate centering and alignment between the shaft seats and sleeves, leading to inconsistent weld joint quality. This necessitates separate processes, which not only increases production time but may also introduce additional errors, affecting the quality of the final product. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a welding fixture that, through precise positioning and automatic clamping mechanisms, achieves accurate centering alignment and stable fixation of the shaft seat and the sleeve, ensuring the quality stability of the welding joint, effectively reducing process steps, shortening production time, reducing human error, improving product consistency and reliability, and significantly improving the efficiency and precision of welding operations.

[0004] A welding fixture according to an embodiment of the present utility model includes:

[0005] Base;

[0006] A first positioning component is connected to the base. The first positioning component includes a positioning part and a clamping part. The positioning part is used to position the middle part of the shaft seat, and the clamping part is used to clamp the shaft seat.

[0007] The second positioning component is connected to the base and located outside the first positioning component. The second positioning component includes a clamping member for clamping both ends of the sleeve to drive the sleeve to be centered and aligned with the bearing seat and to abut against the side of the bearing seat.

[0008] According to an embodiment of the present invention, a welding fixture has at least the following beneficial effects: the positioning component ensures that the shaft seat is positioned with the centerline of the shaft seat as a reference, improving the accuracy of the welding position; the clamping component ensures that the shaft seat remains stable during the welding process, avoiding quality problems caused by shaft seat displacement; at the same time, the clamping component can effectively prevent the shaft seat from deforming due to external force during welding, ensuring the quality stability of the weld joint; furthermore, the clamping component is used to precisely clamp both ends of the sleeve. This design allows the sleeve to be accurately driven to a position aligned with the center of the shaft seat, and because the sleeve can closely fit the side of the shaft seat, the two can be smoothly welded. This not only solves the problem of automatic centering that is difficult to achieve with traditional fixtures, but also eliminates the errors that may be caused by manual adjustment, ensuring the high quality of the weld joint; thus, while ensuring precise positioning between the shaft seat and the sleeve, it achieves stable fixation between the two, reducing production steps, reducing the risk of human error, and improving welding efficiency and quality. It is suitable for welding application scenarios that require high precision and reliability.

[0009] According to some embodiments of the present invention, a welding fixture is provided, wherein the positioning component includes a positioning strip and a positioning post. The positioning strip is embedded in the bottom of the shaft seat, and the positioning post is installed at the center of the positioning strip and is embedded in the center of the bottom of the shaft seat.

[0010] According to some embodiments of the present invention, a welding fixture is provided, wherein the clamping component includes a first cylinder and two clamping blocks, the first cylinder being connected to and driving the two clamping blocks to move, thereby clamping both sides of the top wall of the bearing seat.

[0011] According to some embodiments of the present invention, a welding fixture is provided in which the clamping block is provided with two symmetrically arranged arc-shaped clamping surfaces, and the arc-shaped clamping surfaces match the top wall shape of the bearing seat.

[0012] According to some embodiments of this utility model, a welding fixture is provided between the first cylinder and the clamping block. A push rod is fixedly connected to the drive shaft of the first cylinder. One end of the transmission rod away from the clamping block is hinged to one end of the push rod. The middle part of the transmission rod is connected to the base by a groove fit. The first cylinder can drive the transmission rod to swing towards the center of the positioning component to press the shaft seat.

[0013] According to some embodiments of the present invention, a welding fixture is provided, wherein the second positioning component includes a positioning block, the positioning block is fixed to the base, and the positioning block is used to position the side of the sleeve away from the bearing seat.

[0014] According to some embodiments of the present invention, a welding fixture is provided, wherein the clamping component includes a second cylinder and two clamping blocks, the second cylinder being connected to and driving the two clamping blocks to move toward or away from each other to clamp or release the sleeve.

[0015] According to some embodiments of the present invention, a welding fixture is provided in which a mounting seat is fixed on the base, the mounting seat is provided with a first guide groove, the length direction of the first guide groove is parallel to the center line direction of the sleeve, and the clamping block is slidably disposed in the first guide groove.

[0016] According to some embodiments of the present invention, a welding fixture is provided with a second guide groove, the length of which is parallel to the length direction of the first guide groove. A push block is fixedly connected to the drive shaft of the second cylinder. The push block is provided with a transmission groove, which is arranged obliquely to the second guide groove. A transmission pin is rotatably installed on one end of the clamping block facing the push block. The transmission pin is slidably disposed in the transmission groove and the second guide groove.

[0017] According to some embodiments of the present invention, a welding fixture is provided at the end of each clamping block. The clamping column is adjustablely installed on the clamping block along the center line of the sleeve. The two clamping columns are arranged opposite each other and used to clamp the sleeve.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the overall structure of a welding fixture according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of the first positioning component of a welding fixture in a shaft-seat separated state according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic cross-sectional view of the second positioning component of a welding fixture in a sleeve clamping state according to an embodiment of the present utility model.

[0023] Figure 4 This is an exploded view of the second positioning component of a welding fixture according to an embodiment of the present invention.

[0024] Explanation of icon numbers:

[0025] Base 100; Fixing block 110; Mounting base 120; First guide groove 1201; Second guide groove 1202;

[0026] First positioning assembly 200; positioning component 210; positioning strip 211; positioning post 212; clamping component 220; first cylinder 221; push rod 2211; transmission rod 222; clamping block 223; arc-shaped clamping surface 2231;

[0027] Second positioning component 300; clamping component 310; second cylinder 311; push block 3111; transmission groove 31111; transmission pin 312; clamping block 313; clamping column 3131; positioning block 320;

[0028] Shaft seat 400;

[0029] 500mm sleeve. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0034] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Traditional welding fixtures typically consist of simple clamps and positioning devices, primarily used to fix and align the parts to be welded. However, when faced with welding tasks involving complex geometries or high precision requirements, such as welding shaft seats and sleeves, the lack of precise automatic centering and clamping mechanisms makes it difficult to ensure accurate centering and alignment between the shaft seats and sleeves, leading to inconsistent weld joint quality. This necessitates separate processes, which not only increases production time but may also introduce additional errors, affecting the quality of the final product.

[0036] Therefore, such as Figures 1 to 4As shown, this utility model proposes a welding fixture, including a base 100, a first positioning component 200 connected to the base 100, and a second positioning component 300 connected to the base 100. The first positioning component 200 is used to position the bearing 400, and the second positioning component 300 is used to position the sleeve 500. After positioning, the bearing 400 and the sleeve 500 can be welded. If a welding robot is used for automated welding, the welding and fixing of the bearing 400 and the sleeve 500 can be completed in one process. Specifically, the first positioning component 200 includes a positioning component 210 for positioning the middle part of the bearing 400 and a clamping component 220 for clamping the bearing 400. The second positioning component 300 is located outside the first positioning component 200. The second positioning component 300 includes clamping components 310 for clamping both ends of the sleeve 500, and drives the sleeve 500 to be centrally aligned with the bearing 400 and abut against the side of the bearing 400. It should be noted that the positioning component 210 ensures that the bearing seat 400 is positioned with the centerline of the bearing seat 400 as the reference, which improves the accuracy of the welding position. The clamping component 220 ensures that the bearing seat 400 remains stable during the welding process, avoiding quality problems caused by the displacement of the bearing seat 400. At the same time, the clamping component 220 can effectively prevent the bearing seat 400 from deforming due to external force during welding, thus ensuring the quality stability of the welded joint. Furthermore, the clamping component 310 is used to precisely clamp both ends of the sleeve 500. This design allows the sleeve 500 to be accurately driven to a position centered and aligned with the bearing 400. Since the sleeve 500 can fit tightly against the side of the bearing 400, the two can be smoothly welded. This not only solves the problem of automatic centering that is difficult to achieve with traditional tooling, but also eliminates the errors that may be caused by manual adjustment, ensuring high quality of the welded joint. In addition, while ensuring precise positioning between the bearing 400 and the sleeve 500, it also achieves stable fixation between the two, reduces production steps, reduces the risk of human error, and improves welding efficiency and quality. It is suitable for welding applications that require high precision and reliability.

[0037] Refer to Figure 2In some embodiments of this utility model, the positioning component 210 includes a positioning strip 211 and a positioning post 212. The positioning strip 211 is embedded in the bottom of the bearing seat 400, and the positioning post 212 is installed at the center of the positioning strip 211. The positioning post 212 is embedded in the center of the bottom of the bearing seat 400, ensuring a tighter and more precise fit between the bottom of the bearing seat 400 and the positioning component 210. The embedded fit of the positioning strip 211 with the bottom of the bearing seat 400 and the embedding of the positioning post 212 at the center of the bottom of the bearing seat 400 can precisely control the position of the bearing seat 400, avoiding quality problems caused by displacement of the bearing seat 400, and ensuring the consistency and reliability of the weld bead. Furthermore, the clamping component 220 includes a first cylinder 221 and two clamping blocks 223. The first cylinder 221 connects to and drives the two clamping blocks 223 to move, clamping both sides of the top wall of the bearing seat 400. This ensures that the bearing seat 400 will not shift or deform during welding, improving the stability and reliability of the welding process, reducing the need for manual intervention, ensuring consistency in each welding operation, reducing the risk of human error, and improving production efficiency and welding quality. Optionally, the clamping blocks 223 are provided with two symmetrically arranged arc-shaped clamping surfaces 2231. The arc-shaped clamping surfaces 2231 match the shape of the top wall of the bearing seat 400, providing a more uniform pressure distribution, preventing local stress concentration, and protecting the surface of the welded part from damage. In addition, the design of the arc-shaped clamping surfaces 2231 can better adapt to bearing seats 400 with various top wall shapes, improving versatility and ensuring reliable fixation of the bearing seat 400.

[0038] In some embodiments, the first cylinder drives the clamping block to move linearly (not shown in the figure), for example, the first cylinder is a common cylinder. However, the linearly moving clamping block will also be on the loading path of the shaft seat when the clamping block is in the released state, which is not convenient for the rapid loading of the shaft seat. In some embodiments of this utility model, the clamping block 223 can move in a swing path under the drive of the first cylinder 221, and can avoid the loading path of the shaft seat 400 when the clamping block 223 is in the released state. Specifically, as Figure 2As shown, a transmission rod 222 is provided between the first cylinder 221 and the clamping block 223. A push rod 2211 is fixedly connected to the drive shaft of the first cylinder 221. One end of the transmission rod 222 away from the clamping block 223 is hinged to one end of the push rod 2211. The middle part of the transmission rod 222 is connected to the base 100 via a slotted joint. For example, a fixing block 110 is fixedly provided on the base 100, and the middle part of the transmission rod 222 is connected to the fixing block 110 via a pin. Furthermore, the middle part of the transmission rod 222 or the fixing block 110 is provided with a slot that slides with the pin. In application, the first cylinder 221 can drive the transmission rod 222 to swing towards the center of the positioning component 210 to clamp the shaft seat 400. This not only avoids obstructing the feeding path of the shaft seat 400 but also optimizes the transmission path of the clamping force, allowing for more precise control of the magnitude and direction of the clamping force, adapting to different welding requirements.

[0039] Refer to Figure 3 and Figure 4 In some embodiments of this utility model, the second positioning component 300 includes a positioning block 320, which is fixed to the base 100. The positioning block 320 is used to position the side of the sleeve 500 away from the bearing 400. This facilitates the loading of the sleeve 500 and ensures that the weld bead between the sleeve 500 and the bearing 400 is not obstructed after the sleeve 500 is loaded. It allows for a single-pass welding and fixing process between the sleeve 500 and the bearing 400. Furthermore, after the positioning block 320 positions the sleeve 500, it ensures a tight fit between the sleeve 500 and the bearing 400, providing a stable reference point for the sleeve 500 and guaranteeing the accuracy of the sleeve 500's position during welding, thereby improving the quality of the weld bead. Optionally, there are two positioning blocks 320, arranged at intervals on the same side. Each positioning block 320 has a V-shaped groove on the side facing the sleeve 500, suitable for positioning the cylindrical sleeve 500. (Refer to...) Figure 3 and Figure 4The clamping component 310 includes a second cylinder 311 and two clamping blocks 313. The second cylinder 311 connects to and drives the two clamping blocks 313 to move towards or away from each other to clamp or release the sleeve 500, achieving precise clamping at both ends of the sleeve 500, ensuring a stable connection between the sleeve 500 and the shaft seat 400, and improving the accuracy and efficiency of the welding operation. Optionally, the second cylinder is a parallel pneumatic gripper (not shown in the figure), and two positioning blocks are respectively installed on the two grippers of the parallel pneumatic gripper. It is easy to understand that the automated clamping mechanism reduces the influence of human factors, improves the continuity and consistency of production, and the cylinder-driven clamping system can provide a consistent and controllable clamping force, ensuring the quality of the weld bead. In addition, this design allows for quick replacement and adjustment to accommodate sleeves 500 of different lengths, improving the flexibility and applicability of the equipment. Furthermore, each end of the clamping block 313 is provided with a clamping post 3131. The clamping post 3131 is adjustablely mounted on the clamping block 313 along the centerline of the sleeve 500. The two clamping posts 3131 are arranged opposite each other and used to clamp the sleeve 500. For example, the clamping post 3131 and the clamping block 313 are connected by a threaded drive and are tightened with a nut after being rotated to the appropriate position. This allows for fine-tuning according to the specific length of the sleeve 500, adapting to the needs of products with different length specifications and enhancing the versatility and flexibility of the equipment. In addition, the adjustable mounting of the clamping post 3131 along the centerline of the sleeve 500 ensures that the two clamping posts 3131 are arranged opposite each other and can effectively clamp the sleeve 500, so that the clamped sleeve 500 is centered with the bushing, ensuring the accuracy of the position of the sleeve 500 relative to the bushing, and resulting in higher precision of the welded product.

[0040] like Figure 4 As shown, in some embodiments of this utility model, the base 100 is fixed with a mounting seat 120, and the mounting seat 120 is provided with a first guide groove 1201. The length direction of the first guide groove 1201 is parallel to the center line direction of the sleeve 500. The clamping block 313 is slidably disposed in the first guide groove 1201, ensuring that the clamping block 313 can maintain the correct direction when sliding, preventing the clamping block 313 from shifting during the clamping process, and ensuring the stability and reliability of the sleeve 500 clamping. This guiding mechanism enhances the stability of the system and ensures that each clamping action is consistent and reliable. Furthermore, the second cylinder 311 and the clamping block 313 are transmitted through a linkage mechanism, which effectively improves the clamping force of the clamping block 313 on the sleeve 500 and the stability of the sleeve 500 after clamping. Specifically, refer to... Figure 3 and Figure 4The mounting base 120 is provided with a second guide groove 1202. The length of the second guide groove 1202 is parallel to the length direction of the first guide groove 1201. The drive shaft of the second cylinder 311 is fixedly connected to a push block 3111. The push block 3111 is provided with a transmission groove 31111. The transmission groove 31111 is arranged at an inclination with the second guide groove 1202. The clamping block 313 is rotatably mounted with a transmission pin 312 at one end facing the push block 3111. The transmission pin 312 is slidably disposed in the transmission groove 31111 and the second guide groove 1202. It should be noted that the transmission groove 31111 and the second guide groove 1202 are arranged at an angle, and the transmission pin 312 is slidably set in the transmission groove 31111 and the second guide groove 1202, which realizes the precise guidance of the clamping block 313 during the clamping process. The push block 3111 can drive the clamping block 313 to move linearly along the direction of the second guide groove 1202. The length direction of the second guide groove 1202 and the length direction of the first guide groove 1201 are parallel to the center line direction of the sleeve 500. Therefore, the clamping block 313 can clamp the sleeve 500 by moving parallel to the center line of the sleeve 500, which improves the clamping effect and ensures the stability and consistency of the sleeve 500 during the welding process.

[0041] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A welding fixture, characterized in that, include: Base; A first positioning component is connected to the base. The first positioning component includes a positioning part and a clamping part. The positioning part is used to position the middle part of the shaft seat, and the clamping part is used to clamp the shaft seat. The second positioning component is connected to the base and located outside the first positioning component. The second positioning component includes a clamping member for clamping both ends of the sleeve to drive the sleeve to be centered and aligned with the bearing seat and to abut against the side of the bearing seat.

2. The welding fixture according to claim 1, characterized in that: The positioning component includes a positioning strip and a positioning post. The positioning strip is embedded in the bottom of the bearing seat, and the positioning post is installed at the center of the positioning strip and is embedded in the center of the bottom of the bearing seat.

3. A welding fixture according to claim 1 or 2, characterized in that: The clamping component includes a first cylinder and two clamping blocks. The first cylinder is connected to and drives the two clamping blocks to move, thereby clamping both sides of the top wall of the bearing seat.

4. The welding fixture according to claim 3, characterized in that: The clamping block is provided with two symmetrically arranged arc-shaped clamping surfaces, which match the shape of the top wall of the bearing seat.

5. A welding fixture according to claim 3, characterized in that: A transmission rod is provided between the first cylinder and the clamping block. A push rod is fixedly connected to the drive shaft of the first cylinder. One end of the transmission rod away from the clamping block is hinged to one end of the push rod. The middle part of the transmission rod is connected to the base by a groove fit. The first cylinder can drive the transmission rod to swing towards the center of the positioning component to press the shaft seat.

6. The welding fixture according to claim 1, characterized in that: The second positioning component includes a positioning block, which is fixed to the base and is used to position the side of the sleeve away from the bearing.

7. The welding fixture according to claim 1, characterized in that: The clamping component includes a second cylinder and two clamping blocks. The second cylinder is connected to and drives the two clamping blocks to move toward or away from each other to clamp or release the sleeve.

8. A welding fixture according to claim 7, characterized in that: The base is fixed with a mounting seat, and the mounting seat is provided with a first guide groove. The length direction of the first guide groove is parallel to the center line direction of the sleeve, and the clamping block is slidably disposed in the first guide groove.

9. A welding fixture according to claim 8, characterized in that: The mounting base is provided with a second guide groove, the length of which is parallel to the length direction of the first guide groove. The drive shaft of the second cylinder is fixedly connected to a push block, the push block is provided with a transmission groove, the transmission groove is inclined to the second guide groove, and a transmission pin is rotatably installed on one end of the clamping block facing the push block. The transmission pin is slidably disposed in the transmission groove and the second guide groove.

10. A welding fixture according to any one of claims 7 to 9, characterized in that: Each end of the clamping block is provided with a clamping post. The clamping post is adjustablely installed on the clamping block along the center line of the sleeve. The two clamping posts are arranged opposite each other and are used to clamp the sleeve.

Images