Clamp tool for laser welding machine

Abstract

The utility model belongs to the technical field of fixture tooling, especially relates to a fixture tooling for laser welding machine, including work table, the inside through -hole of work table is set up and is installed the hole, is provided with the shell one in the hole inside, is provided with the connecting assembly in the shell one inside, is provided with the adjusting assembly in the shell one inside, the connecting assembly includes the moving rod, two sliding rods one are fixedly connected with moving rod outer wall, two clamping blocks are slidably connected with shell one inner wall, two clamping blocks inside all are set up and are installed hole groove, two sliding rods one outer wall all are slidably connected in two hole grooves inside. In the utility model, adjusting assembly passes through the linkage structure of setting moving rod and sliding rod one, and combines the sliding fit of clamping block and hole groove, has realized the multidirectional flexible adjustment of fixture tooling, the sliding path of sliding rod one in hole groove can accurately control the displacement of moving rod, ensures that the position is stable during the welding process of clamp, avoids the deviation caused by vibration or external force, thereby has improved welding accuracy and repeat positioning efficiency remarkably.

Description

Technical Field

[0001] This utility model belongs to the field of fixture and tooling technology, and in particular relates to a fixture and tooling for a laser welding machine. Background Technology

[0002] With the rapid development of precision manufacturing, laser welding technology has been widely used in precision electronics, automotive parts and aerospace fields due to its advantages such as high energy density and non-contact processing. However, the laser welding process has extremely high requirements for the positioning accuracy and clamping stability of the workpiece. Even slight displacement deviations or vibrations may lead to welding defects. Therefore, developing a fixture that can achieve multi-directional flexible adjustment and strong anti-interference ability has become a key requirement for improving welding quality and efficiency.

[0003] Currently, most fixtures used in the laser welding field adopt fixed or manually adjustable structures. For example, some fixtures fix the workpiece by bolt locking or slots, relying on manual adjustment of the position. Other solutions use a single-axis slide rail with a manual locking mechanism to achieve linear adjustment within a limited range. Such designs are usually based on rigid connections or simple sliding pairs, maintaining the workpiece position through physical limits or frictional resistance. Although the structure is simple, its adjustment freedom is limited, and it relies on the operator's experience for repeated calibration.

[0004] The aforementioned traditional fixtures have significant drawbacks in dynamic welding environments. Due to the lack of multi-directional linkage adjustment mechanisms and anti-vibration buffer structures, the fixtures are easily affected by equipment vibration or external force interference during laser welding, resulting in workpiece position displacement. This displacement not only reduces welding accuracy but also affects repeatability. Especially in continuous production or high-precision welding scenarios, frequent machine stops are required for adjustment, which severely restricts processing efficiency and product consistency. Utility Model Content

[0005] The purpose of this utility model is to provide a fixture for a laser welding machine, which aims to solve the problem of workpiece position displacement during laser welding caused by existing fixtures.

[0006] To achieve the above objectives, this utility model provides a fixture for a laser welding machine, including a worktable with a through mounting hole inside. A housing is disposed inside the mounting hole, a connecting component is disposed inside the housing, and an adjustment component is disposed inside the housing.

[0007] The connecting assembly includes a movable rod, which is disposed inside the outer casing. Two slide rods are fixedly connected to the outer wall of the movable rod, and two locking blocks are slidably connected to the inner wall of the outer casing. Both locking blocks have through slots, and the outer walls of the two slide rods are slidably connected to the two slots.

[0008] Furthermore, the adjustment assembly includes a lead screw, one end of which is rotatably connected to an inner wall of the housing, and a knob is fixedly connected to another end of the lead screw. A slider is threadedly connected to the outer wall of the lead screw, and a clamping assembly is provided on the outer wall of the slider.

[0009] Furthermore, the clamping assembly includes a second housing, one end of which is fixedly connected to the outer wall of the slider, and an eccentric wheel is rotatably connected inside the second housing, with a handle fixedly connected to the outer wall of the eccentric wheel.

[0010] Furthermore, a pressure block is slidably connected inside the outer casing, and the pressure block is located below the eccentric wheel.

[0011] Furthermore, a clamping block is slidably connected to the inner wall of the outer shell, and a spring is provided inside the outer shell. One end of the spring is fixedly connected to the lower surface of the pressure block, and the other end of the spring is fixedly connected to the upper surface of the clamping block.

[0012] Furthermore, an outer ring is fitted onto the outer wall of the outer shell, and a groove is formed on the inner wall of the ring.

[0013] Furthermore, a movable rod is slidably connected to the inner wall of the outer casing, and a sliding rod is fixedly connected to the outer wall of the movable rod, with one end of the sliding rod located inside the sliding groove.

[0014] Furthermore, a spring is fitted on the outer wall of the movable rod. One end of the spring is fixedly connected to the outer wall of the slide rod, and the other end of the spring is fixedly connected to the inner wall of the outer casing.

[0015] The above-mentioned technical solutions in the laser welding machine fixture provided in this embodiment of the utility model have at least one of the following technical effects:

[0016] 1. In this utility model, the adjustment component achieves multi-directional flexible adjustment of the fixture by setting a linkage structure between the moving rod and the slide rod, combined with the sliding cooperation of the locking block and the slot. The sliding path of the slide rod in the slot can precisely control the displacement of the moving rod, ensuring that the fixture is stable in position during the welding process and avoiding displacement caused by vibration or external force, thereby significantly improving welding accuracy and repeatability.

[0017] 2. In this utility model, the adjustment component uses a screw and a slider in a threaded connection, and the linear displacement of the clamping component is manually controlled by a knob to achieve precise position adjustment. The clamping component uses an eccentric wheel to rotate and press down the pressure block, combined with the elastic reset of the second spring, to evenly clamp the workpiece and compensate for surface unevenness, avoiding damage. The elastic connection between the clamping block and the second spring further ensures clamping stability. This solution simplifies the operation steps, improves clamping accuracy and reliability, and is suitable for high-precision laser welding scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the fixture for laser welding machines proposed in this utility model;

[0020] Figure 2 This is a side view of the fixture for a laser welding machine proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the handle structure of the fixture for laser welding machines proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the eccentric wheel structure of the fixture for laser welding machines proposed in this utility model;

[0023] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0024] The following are the labeling elements in the figure:

[0025] 1. Workbench; 2. Mounting hole; 3. Outer shell one; 4. Ring sleeve; 5. Slide groove; 6. Moving rod; 7. Slide rod one; 8. Clamping block; 9. Hole groove; 10. Spring one; 11. Slide rod two; 12. Lead screw; 13. Knob; 14. Slider; 15. Outer shell two; 16. Eccentric wheel; 17. Hand lever; 18. Pressure block; 19. Spring two; 20. Clamping block. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which 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 intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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.

[0028] 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] Reference Figures 1-5This utility model provides an embodiment of a fixture for a laser welding machine, including a worktable 1. A mounting hole 2 is formed through the worktable 1, and a housing 3 is disposed inside the mounting hole 2. The worktable 1 supports the main body of the fixture and provides an installation reference. The mounting hole 2 is used to fix the housing 3, achieving stable installation of the housing 3 through hole alignment. A connecting component and an adjusting component are disposed inside the housing 3. The connecting component includes a moving rod 6, which is disposed inside the housing 3. Two sliding rods 7 are fixedly connected to the outer wall of the moving rod 6, and two locking blocks 8 are slidably connected to the inner wall of the housing 3. Each locking block 8 has a through-hole groove 9. The wall is slidably connected inside the two slots 9. The moving rod 6, in conjunction with the slide rod 7 and the slot 9 of the locking block 8, performs multi-directional linkage sliding motion. The limiting sliding of the slide rod 7 within the slot 9 precisely controls the displacement trajectory of the moving rod 6, achieving a multi-dimensional flexible adjustment effect on the position of the outer shell 3. The outer wall of the outer shell 3 is fitted with a ring 4, and the inner wall of the ring 4 has a sliding groove 5. The moving rod 6 is slidably connected to the inner wall of the outer shell 3. The outer wall of the moving rod 6 is fixedly connected with a slide rod 11. One end of the slide rod 11 is set inside the sliding groove 5. The slide rod 11 moves along the trajectory of the sliding groove 5, driving the moving rod 6 to rise and fall, precisely controlling the extension length of the locking block 8. The outer wall of the moving rod 6 is fitted with a spring 10, and one end of the spring 10 is fixedly connected to the slide rod 11. The outer wall has a spring 10 for buffering the adjustment displacement of the moving rod 6 and providing a restoring force. Its two ends are connected to the slide rod 11 and the inner wall of the outer casing 3 respectively, ensuring stability and vibration resistance during adjustment. The ring sleeve 4 cooperates with the slide groove 5 to perform a circular sliding motion with the slide rod 11. The other end of the spring 10 is fixedly connected to the inner wall of the outer casing 3. The adjustment assembly includes a lead screw 12, one end of which is rotatably connected to the inner wall of the outer casing 3, and a knob 13 is fixedly connected to the other end. Manually rotating the knob 13 drives the slider 14 to move linearly. The outer wall of the lead screw 12 is threadedly connected to the slider 14. The outer wall of the slider 14 is provided with a clamping assembly, which includes an outer casing 15. One end of the outer casing 15 is fixedly connected to the outer wall of the slider 14. An eccentric wheel 16 is rotatably connected inside the outer shell 15. A handle 17 is fixedly connected to the outer wall of the eccentric wheel 16. The eccentric wheel 16 rotates and presses down the pressure block 18, which in turn triggers the second spring 19 to elastically clamp the workpiece, achieving uniform clamping and preventing damage. The pressure block 18 is slidably connected inside the outer shell 15. The pressure block 18 is located below the eccentric wheel 16. A clamping block 20 is slidably connected to the inner wall of the outer shell 15. The second spring 19 is installed inside the outer shell 15. One end of the second spring 19 is fixedly connected to the lower surface of the pressure block 18, and the other end of the second spring 19 is fixedly connected to the upper surface of the clamping block 20. The clamping block 20 cooperates with the second spring 19 to perform elastic sliding movement. The compression and rebound of the second spring 19 compensates for the unevenness of the workpiece surface, adaptively clamps, and avoids hard extrusion.

[0031] Working principle: When using this laser welding machine fixture, first install the outer shell 3 into the mounting hole 2 of the worktable 1. The outer shell 3 can be rotated and its position adjusted within the mounting hole 2. Next, rotate the ring 4, causing the slide rod 11 to slide in the groove 5 within the ring 4. The slide rod 11 pushes the moving rod 6 up and down, and the moving rod 6 causes the slide rod 7 to slide in the slot 9 of the locking block 8, so that the locking block 8 extends out of the outer shell 3 and locks under the worktable 1. The spring 10 is sleeved on the moving rod 6, with one end connected to the slide rod 11 and the other end connected to the inner wall of the outer shell 3. It can buffer and reset the adjustment of the moving rod 6. After adjustment, the locking block 8 slides against the inner wall of the outer shell 3. In conjunction with the limiting action of slide bar 7 and slot 9, the position of outer shell 3 is stabilized. Then, the knob 13 is rotated, which drives the lead screw 12 to rotate. The lead screw 12 is threadedly connected to the slider 14, thereby driving the slider 14 to move along the direction of the lead screw 12. The slider 14 drives the clamping assembly to move. When clamping the workpiece, the hand lever 17 is rotated, which drives the eccentric wheel 16 to rotate inside the outer shell 15. The eccentric wheel 16 presses down on the pressure block 18, which compresses the spring 19 and pushes the clamping block 20. The clamping block 20 slides inside the outer shell 15. Under the elastic action of the spring 19, the workpiece is evenly clamped. The spring 19 can compensate for the unevenness of the workpiece surface and avoid damage to the workpiece.

[0032] The rest of this embodiment is the same as that in Embodiment 1. Features not explained in this embodiment are explained using the methods in Embodiment 1, and will not be repeated here.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fixture for a laser welding machine, comprising a worktable (1), characterized in that: The workbench (1) has a through-hole (2) inside, and a housing (3) is provided inside the housing (2). A connecting component is provided inside the housing (3), and an adjustment component is provided inside the housing (3). The connecting assembly includes a movable rod (6), which is disposed inside the outer shell (3). Two sliding rods (7) are fixedly connected to the outer wall of the movable rod (6), and two locking blocks (8) are slidably connected to the inner wall of the outer shell (3). The two locking blocks (8) are provided with through slots (9), and the outer walls of the two sliding rods (7) are slidably connected inside the two slots (9).

2. The fixture for a laser welding machine according to claim 1, characterized in that: The adjustment assembly includes a lead screw (12), one end of which is rotatably connected to the inner wall of the outer casing (3), and a knob (13) is fixedly connected to one end of the lead screw (12). A slider (14) is threadedly connected to the outer wall of the lead screw (12), and a clamping assembly is provided on the outer wall of the slider (14).

3. The fixture for a laser welding machine according to claim 2, characterized in that: The clamping assembly includes a second outer shell (15), one end of which is fixedly connected to the outer wall of the slider (14), and an eccentric wheel (16) is rotatably connected inside the second outer shell (15), and a handle (17) is fixedly connected to the outer wall of the eccentric wheel (16).

4. The fixture for a laser welding machine according to claim 3, characterized in that: The outer shell (15) has a sliding connection to a pressure block (18), which is located below the eccentric wheel (16).

5. The fixture for a laser welding machine according to claim 4, characterized in that: The inner wall of the outer shell (15) is slidably connected to a clamping block (20), and a spring (19) is provided inside the outer shell (15). One end of the spring (19) is fixedly connected to the lower surface of the pressure block (18), and the other end of the spring (19) is fixedly connected to the upper surface of the clamping block (20).

6. The fixture for a laser welding machine according to claim 1, characterized in that: The outer wall of the outer shell (3) is fitted with a ring sleeve (4), and the inner wall of the ring sleeve (4) is provided with a sliding groove (5).

7. The fixture for a laser welding machine according to claim 6, characterized in that: The inner wall of the outer shell (3) is slidably connected to a movable rod (6), and the outer wall of the movable rod (6) is fixedly connected to a sliding rod (11), with one end of the sliding rod (11) located inside the sliding groove (5).

8. The fixture for a laser welding machine according to claim 7, characterized in that: The outer wall of the movable rod (6) is fitted with a spring (10), one end of the spring (10) is fixedly connected to the outer wall of the slide rod (11), and the other end of the spring (10) is fixedly connected to the inner wall of the outer shell (3).

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