A welding jig for L-shaped workpieces

Abstract

The utility model provides a kind of welding fixture of L-shaped workpiece, including base, cylinder is set on base, the piston rod of cylinder is connected with guide block, recess is opened in guide block, recess is equipped with the moving rod of horizontal arrangement and is installed;Two pieces of guide plate are further equipped on base and are oppositely arranged, guide block is cooperated and is slidably arranged between two pieces of guide plate, sliding slot is further equipped on guide plate, and moving rod passes through sliding slot;Two ends of moving rod are respectively equipped with support block, and support block is the shape that cooperates with the inside of L-shaped workpiece angle;The top of guide plate is equipped with pressing plate, and the bottom of both ends of pressing plate is equipped with locating slot, and locating slot is the shape that cooperates with the outside of L-shaped workpiece angle;The present tool makes rational use of the angle feature of L-shaped workpiece, and L-shaped workpiece can be positioned quickly and accurately by the cooperation of support block and pressing plate, guarantee welding quality, improve work efficiency;Meanwhile, since clamping point is located at the angle of L-shaped workpiece, L-shaped surface is not shielded, and it is conducive to the progress of welding work.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a welding fixture for an L-shaped workpiece. Background Technology

[0002] With the development of industrial manufacturing, welding, as an important joining process, is widely used in various fields. During the welding process, welding fixtures play a crucial role in ensuring welding quality and efficiency. Welding fixtures are devices used to fix and position workpieces, ensuring that the workpieces maintain a stable position and posture during welding, thereby improving welding accuracy and efficiency.

[0003] For workpieces with special shapes, such as L-shaped workpieces, traditional welding fixtures often fail to meet their positioning and fixing requirements. Firstly, general-purpose fixtures require clamping at both ends of the L-shaped workpiece, a cumbersome and inefficient process. Secondly, traditional clamping methods partially obscure the L-shaped surface of the workpiece, affecting welding quality and results. Furthermore, existing fixtures can only clamp one workpiece at a time, failing to meet the demands of mass production and resulting in low processing efficiency. Especially for the special shape of L-shaped workpieces, existing fixtures struggle to simultaneously guarantee positioning accuracy and welding accessibility, often requiring multiple adjustments to the workpiece position or replacement with different types of fixtures, significantly reducing production efficiency.

[0004] Therefore, there is an urgent need for a welding fixture specifically designed for L-shaped workpieces, which can quickly and accurately position and fix L-shaped workpieces without obstructing the welding surface, thereby improving welding efficiency and quality. Utility Model Content

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a welding fixture for L-shaped workpieces, which solves the problems of the general fixtures in the prior art requiring clamping at both ends of the L-shaped workpiece, partially obscuring the L-shaped surface of the workpiece, and only being able to clamp one workpiece at a time.

[0006] To achieve the above and other related objectives, this utility model provides a welding fixture for an L-shaped workpiece, including a base, a cylinder mounted on the base, a piston rod of the cylinder connected to a guide block, a groove on the guide block, and a horizontally arranged moving rod installed in the groove; the base also has two opposing guide plates, the guide block being slidably disposed between the two guide plates, and a sliding groove on the guide plate through which the moving rod passes; support blocks are respectively provided at both ends of the moving rod, the support blocks being shaped to mate with the inner side of the included angle of the L-shaped workpiece; a pressure plate is provided at the top of the guide plate, and positioning grooves are provided at the bottom of both ends of the pressure plate, the positioning grooves being shaped to mate with the outer side of the included angle of the L-shaped workpiece.

[0007] In one embodiment of this utility model, the support block is detachably connected to the moving rod; the clamping plate is detachably connected to the guide plate.

[0008] In one embodiment of this utility model, the support block has a through hole for the moving rod to pass through; the end of the moving rod is provided with a detachably connected fixing block.

[0009] In one embodiment of the present invention, threaded holes are provided on the top of the guide plate and the pressing plate, and the guide plate and the pressing plate are connected by bolts.

[0010] In one embodiment of the present invention, the bottoms of the two guide plates are respectively fixed to the two sides of the base, and a lower mounting plate and an upper mounting plate are provided between the two guide plates at an interval. The cylinder is mounted on the lower mounting plate, and the upper mounting plate has a hole for the piston rod to pass through.

[0011] In one embodiment of the present invention, the bottom of the base is provided with support feet arranged in a cross shape, and each support foot is provided with a caster wheel at its bottom.

[0012] In one embodiment of the present invention, the universal wheel includes a housing, a roller, and an adjustable leg. The adjustable leg is vertically and movably disposed at one end of the housing, and the roller is movably disposed at the other end of the housing. The housing is also provided with a control structure for controlling the lifting and lowering of the adjustable leg. The top of the housing is mounted on the bottom of the support foot via a bearing.

[0013] As described above, the welding fixture for the L-shaped workpiece of this utility model has the following beneficial effects: 1. This fixture makes reasonable use of the included angle feature of the L-shaped workpiece. By placing the L-shaped workpiece on the support block that matches the inside of its included angle, the support block rises under the action of the moving rod until the positioning groove of the clamping plate clamps the outside of the L-shaped workpiece, thereby achieving rapid clamping of the L-shaped workpiece. This avoids the cumbersome operation of clamping both ends of the workpiece required by traditional fixtures, thus improving work efficiency. At the same time, since the clamping point is located at the included angle of the L-shaped workpiece, it will not obstruct the L-shaped surface, which is conducive to the welding work.

[0014] 2. Support blocks are provided at both ends of the moving rod, which can clamp two L-shaped workpieces at a time. Compared with the existing jigs that can only clamp one workpiece at a time, the processing efficiency is greatly improved.

[0015] 3. This utility model also features a dual-guide structure. The guide plate provides one-fold guidance to the guide block, while the slide groove provides a second-fold guidance to the moving rod, ensuring that the moving rod maintains horizontal lifting and lowering and preventing skewing that could damage the workpiece on one side.

[0016] 4. This fixture is equipped with casters at the bottom of the base, which facilitates the handling and displacement of the entire device. After it is moved into place, the casters are locked by adjusting the legs to ensure the stable operation of the entire fixture. Attached Figure Description

[0017] Figure 1 The diagram shown is a structural schematic of the welding fixture for the L-shaped workpiece disclosed in an embodiment of this utility model.

[0018] Figure 2 The diagram shown is a disassembly diagram of the welding fixture for the L-shaped workpiece disclosed in this embodiment of the present invention.

[0019] Figure 3 The diagram shown is a cross-sectional view of the welding fixture for the L-shaped workpiece disclosed in an embodiment of this utility model.

[0020] Figure 4 The diagram shown is a structural schematic of the universal wheel disclosed in an embodiment of this utility model.

[0021] Component designation explanation 1. Base; 11. Lower mounting plate; 12. Upper mounting plate; 2. Guide plate; 21. Slide groove; 3. Guide block; 4. Moving rod; 41. Fixing block; 5. Support block; 6. Pressing plate; 61. Positioning groove; 7. Cylinder; 8. Support foot; 9. Caster wheel; 91. Housing; 92. Roller; 93. Adjustable leg. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Please see Figures 1-3 This utility model provides a welding fixture for an L-shaped workpiece, including a base 1. Two guide plates 2 are arranged opposite each other on the base 1, with their bottoms fixed to the sides of the base 1. A lower mounting plate 11 and an upper mounting plate 12 are spaced apart between the two guide plates 2. A cylinder 7 is mounted on the lower mounting plate 11, and a hole for the piston rod of the cylinder 7 to pass through is provided on the upper mounting plate 12. The piston rod of the cylinder 7 is connected to a guide block 3. A groove is provided on the guide block 3, and a horizontally arranged moving rod 4 is installed in the groove. The guide block 3 is slidably positioned between the two guide plates 2. A sliding groove 21 is also provided on the guide plate 2, through which the moving rod 4 passes. Support blocks 5 are provided at both ends of the moving rod 4, and the support blocks 5 are shaped to mate with the inner side of the included angle of the L-shaped workpiece. A clamping plate 6 is provided at the top of the guide plate 2, and positioning grooves 61 are provided at the bottom of both ends of the clamping plate 6, shaped to mate with the outer side of the included angle of the L-shaped workpiece.

[0024] In a preferred embodiment, the support block is detachably connected to the moving rod 4; the clamping plate 6 is detachably connected to the guide plate 2. This detachable connection method allows the various components of the fixture to be replaced or adjusted according to actual needs, adapting to L-shaped workpieces of different specifications and shapes, thus improving the applicability and service life of the fixture.

[0025] Furthermore, the support block 5 has a through hole for the moving rod 4 to pass through. The end of the moving rod 4 is provided with a detachably connected fixing block 41. The detachable connection of the fixing block 41 allows the support block 5 to be easily installed on the moving rod 4, while preventing the support block 5 from falling off. When it is necessary to replace the support block 5 with a different shape, simply remove the fixing block 41, replace the support block 5, and then reinstall the fixing block 41, greatly improving the flexibility and applicability of the fixture.

[0026] Furthermore, threaded holes are provided on the top of the guide plate 2 and the clamping plate 6, and the guide plate 2 and the clamping plate 6 are connected by bolts. This connection method allows the clamping plate 6 to be detachably connected to the guide plate 2, which facilitates the replacement of clamping plates 6 of different shapes according to the needs of different workpieces, thereby improving the flexibility and versatility of the fixture.

[0027] In a preferred embodiment, the base 1 has cross-shaped support feet 8 at its bottom, and each support foot 8 has a caster wheel 9 at its bottom. (See reference) Figure 4 The caster wheel 9 includes a housing 91, rollers 92, and adjusting legs 93. The adjusting legs 93 are vertically detachably mounted at one end of the housing 91, and the rollers 92 are movably mounted at the other end of the housing 91. The housing 91 also contains a control structure for controlling the raising and lowering of the adjusting legs 93. The top of the housing 91 is mounted on the bottom of the support feet 8 via bearings. The caster wheel 9 facilitates the transport and displacement of the entire device. Once in position, the adjusting legs 93 are lowered and locked to prevent further movement, ensuring the stable operation of the entire fixture.

[0028] The working principle of this welding fixture is as follows: An L-shaped workpiece is placed on a support block 5, with the inner angle of the L-shaped workpiece matching the shape of the support block 5. A cylinder 7 drives a guide block 3 to move, causing a moving rod 4 and the support block 5 to rise, so that the positioning groove 61 of the clamping plate 6 matches the outer angle of the L-shaped workpiece, achieving precise positioning and fixation of the L-shaped workpiece. This fixture design enables rapid and accurate positioning and fixation of L-shaped workpieces, improving welding efficiency and quality while reducing the labor intensity of workers.

[0029] In summary, this fixture makes reasonable use of the included angle characteristics of the L-shaped workpiece. Through the cooperation of the support block and the clamping plate, it can quickly and accurately position the L-shaped workpiece, ensuring welding quality and improving work efficiency. At the same time, since the clamping point is located at the included angle of the L-shaped workpiece, it will not obstruct the L-shaped surface, which is beneficial to the welding work. Therefore, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0030] The terms used in this specification, such as "upper", "lower", "left", "right", "front", "back", "middle" and "one", are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A welding fixture for an L-shaped workpiece, characterized in that, The device includes a base, on which a cylinder is mounted. The piston rod of the cylinder is connected to a guide block. A groove is provided on the guide block, and a horizontally arranged moving rod is installed in the groove. The base also has two opposing guide plates. The guide block is slidably positioned between the two guide plates. The guide plates also have sliding grooves through which the moving rod passes. Support blocks are provided at both ends of the moving rod, and the support blocks are shaped to fit the inner side of the L-shaped workpiece's included angle; a pressure plate is provided at the top of the guide plate, and positioning grooves are provided at the bottom of both ends of the pressure plate, and the positioning grooves are shaped to fit the outer side of the L-shaped workpiece's included angle.

2. The welding fixture for the L-shaped workpiece according to claim 1, characterized in that, The support block is detachably connected to the moving rod; the clamping plate is detachably connected to the guide plate.

3. The welding fixture for the L-shaped workpiece according to claim 1, characterized in that, The support block has a through hole for the moving rod to pass through; the end of the moving rod is provided with a detachable fixing block.

4. The welding fixture for the L-shaped workpiece according to claim 1, characterized in that, The top of the guide plate and the clamping plate are provided with threaded holes, and the guide plate and the clamping plate are connected by bolts.

5. The welding fixture for the L-shaped workpiece according to claim 1, characterized in that, The bottoms of the two guide plates are fixed to the two sides of the base, and a lower mounting plate and an upper mounting plate are spaced apart between the two guide plates. The cylinder is mounted on the lower mounting plate, and the upper mounting plate has a hole for the piston rod to pass through.

6. The welding fixture for the L-shaped workpiece according to any one of claims 1 to 5, characterized in that, The base has cross-shaped support feet at its bottom, and each support foot has a caster wheel at its bottom.

7. The welding fixture for the L-shaped workpiece according to claim 6, characterized in that, The caster wheel includes a housing, rollers, and adjustable legs. The adjustable legs are vertically mounted on one end of the housing, and the rollers are movably mounted on the other end of the housing. The housing also contains a control structure for controlling the raising and lowering of the adjustable legs. The top of the housing is mounted on the bottom of the support foot via a bearing.

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