A welding tooling mechanism of a laser machine for a round bottom sheet

Abstract

The utility model discloses a kind of welding tooling mechanisms of kettle bottom round bottom piece laser machine, including plate body one and support;The bottom of plate body one is equipped with cylinder oneThe utility model is set by cylinder one, utilizes cylinder one to drive telescopic link one to realize the vertical motion of lifting base, and is precisely guided by sleeve ring, simultaneously, pulley one is directly integrated on telescopic link one, utilizes key engagement transmission torque, saves additional rotary transmission shaft system, motor, pulley two and pulley one are coaxially linked by belt, rotate power is efficiently transmitted to lifting base, and dynamic compression unit of cylinder two, telescopic link, lifting plate, track and follow-up compression block is compactly arranged in plate body two side, this stereoscopic, modularized stacking design has perfectly fused four major core functions of profiling positioning, vertical lifting, uniform speed rotation, dynamic compression in limited space, significantly reduces the overall volume of equipment, saves space for production line layout.

Description

Technical Field

[0001] This utility model specifically relates to a welding fixture mechanism for a laser machine for a circular bottom plate of a pot, belonging to the field of welding fixture technology. Background Technology

[0002] In the mass production of metal teapots (such as stainless steel thermos flasks and coffee pots), the quality of laser welding of the round bottom plate directly determines the product's sealing performance, strength, and lifespan. The teapot body and the round bottom plate need to maintain a precise coaxial fit. However, manual clamping is prone to misalignment due to visual deviations, and porosity or uneven weld penetration can easily occur during welding. The welding process requires simultaneous uniform rotation of the teapot body and vertical fine-tuning. However, existing equipment relies on step-by-step motor control, which results in uneven weld ripples due to asynchronous movement. To address these bottlenecks, this utility model proposes a special tooling mechanism that integrates contour positioning, dynamic clamping, and rotational lifting linkage. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a welding fixture mechanism for a laser machine for a circular bottom plate of a pot, so as to achieve stable clamping and rotation lifting in one integrated manner.

[0004] A welding fixture mechanism for a laser bottom plate of a pot includes a plate and a support.

[0005] A cylinder is installed at the bottom of plate one, and a telescopic rod is slidably connected to the inner wall of cylinder one. Three support rods are installed at the top of plate one, and plate three is installed at the top of the three support rods. A lifting base is installed at the top of the telescopic rods. A pulley is slidably connected to the telescopic rods. A flat key is provided on the telescopic rods, and the flat key meshes with the inside of the pulleys. A pulley two is rotatably connected to the inner wall of the bracket via a rotating shaft. A motor is installed at the bottom of the bracket, and the output end of the motor is fixedly connected to the bearing of pulley two via a connecting rod. A jig for shaping the pot body is installed at the top of the lifting base. Four support rods two are fixedly connected to the top of plate three, and plate two is installed at the top of the four support rods two. A connecting plate is installed on one side of plate two, and a cylinder two is installed on one side of the connecting plate. A telescopic rod two is slidably connected to the inner wall of cylinder two, and a lifting plate is installed at the top of the telescopic rod two. One side of the lifting plate is slidably connected to the connecting plate via a track.

[0006] Furthermore, the inner sidewall of the second plate is rotatably connected to a follower clamping ring via a rotating shaft.

[0007] Furthermore, a limit ring is installed on the outer side wall of the telescopic rod.

[0008] Furthermore, the first pulley and the second pulley are located at the same height, and belts are installed on the first pulley and the second pulley.

[0009] Furthermore, a collar is installed on the plate body three, and the outer side wall of the lifting base is slidably connected to the inner side wall of the collar.

[0010] Furthermore, a support plate is installed on the top of the lifting plate, and a follow-up clamping block is rotatably connected to the bottom of the support plate via a rotating shaft.

[0011] Furthermore, the outer wall dimension of the follower clamping block is smaller than the inner wall dimension of the follower clamping ring. Beneficial effects

[0012] I. This utility model utilizes cylinder one to drive telescopic rod one to achieve the vertical movement of the lifting base, and uses a collar for precise guidance. At the same time, pulley one is directly integrated onto telescopic rod one, and torque is transmitted through key engagement, eliminating the need for an additional rotary transmission shaft system. The motor, pulley two, and pulley one are coaxially linked through a belt, efficiently transmitting rotational power to the lifting base. The dynamic pressing unit, consisting of cylinder two, telescopic rod, lifting plate, track, and follower pressing block, is compactly arranged on both sides of the plate. This three-dimensional and modular stacking design perfectly integrates four core functions—contour positioning, vertical lifting, uniform rotation, and dynamic pressing—within a limited space, significantly reducing the overall size of the equipment and saving space for production line layout.

[0013] II. This utility model, by placing the kettle body on the contour jig, allows the operator to simply place the kettle body on the contour jig, position the round bottom piece, and start the equipment. After starting the equipment, cylinder two drives the follow-up clamping block to press down automatically to center and clamp the round bottom piece. Cylinder one drives the entire kettle body assembly to rise to the welding position, and the motor starts. The kettle body integrated on the lifting base rotates at a uniform speed via a belt. The entire process is highly automated with minimal manual intervention. There is no need for complex parameter settings or fine adjustments. The intuitive mechanical structure and clear action flow allow operators to quickly master the operating essentials without a deep technical background or long training period, significantly shortening the learning curve and improving production efficiency.

[0014] Third, this utility model, through the setting of the motor, transmits power through pulley two, belt, and pulley one. Pulley one is rigidly engaged with telescopic rod one via a flat key, and telescopic rod one drives the lifting base. This design ensures that the rotational power is directly and without slippage transmitted to the lifting base that carries the kettle body. When cylinder one drives telescopic rod one for vertical fine adjustment, the rotational motion is always transmitted synchronously through the flat key, completely eliminating the relative motion or phase difference that may occur due to the separation of the lifting shaft and the rotation shaft in traditional step control. As a result, the kettle body can maintain an absolutely uniform speed and no shaking during the lifting process. This ultra-stable rotation state is the core guarantee for obtaining high-quality welds in laser welding. It directly eliminates problems such as uneven weld ripples and rough fish-scale patterns caused by speed fluctuations, making the laser weld exhibit a highly uniform, dense, continuous, and beautiful shape. Attached Figure Description

[0015] Figure 1 This is a top view of the structure of this utility model.

[0016] Figure 2 This is a side top view of the structure of this utility model;

[0017] Figure 3 This is a side view of the present invention.

[0018] Figure 4 This is a schematic diagram of the structure of this utility model from a bottom view.

[0019] In the diagram: 101. Plate 1; 102. Cylinder 1; 103. Support rod 1; 104. Telescopic rod 1; 105. Limiting ring; 106. Pulley 1; 107. Bracket; 108. Motor; 109. Pulley 2; 110. Lifting base; 111. Collar; 112. Kettle body conforming fixture; 113. Support rod 2; 114. Cylinder 2; 115. Connecting plate; 116. Telescopic rod 2; 117. Lifting plate; 118. Follower pressing block; 119. Follower pressing ring; 120. Plate 2; 121. Support plate; 122. Plate 3. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 As shown, a welding fixture mechanism for a laser machine for a circular bottom plate of a pot includes a plate 101 and a bracket 107.

[0022] A cylinder 102 is installed at the bottom of plate 101. A telescopic rod 104 is slidably connected to the inner wall of cylinder 102. Three support rods 103 are installed at the top of plate 101. Plate 122 is installed at the top of the three support rods 103. A lifting base 110 is installed at the top of telescopic rod 104. A pulley 106 is slidably connected to telescopic rod 104. A flat key is provided on telescopic rod 104, and the flat key meshes with the inside of pulley 106. A second pulley 109 is rotatably connected to the inner wall of bracket 107 via a rotating shaft. A motor 108 is installed at the bottom of bracket 107. The output end of 108 is fixedly connected to the bearing of pulley 109 via a connecting rod. A jig 112 is installed on the top of the lifting base 110. Four support rods 113 are fixedly connected to the top of plate 122. Plate 120 is installed on the top of the four support rods 113. A connecting plate 115 is installed on one side of plate 120. A cylinder 114 is installed on one side of connecting plate 115. A telescopic rod 116 is slidably connected to the inner wall of cylinder 114. A lifting plate 117 is installed on the top of telescopic rod 116. One side of lifting plate 117 is slidably connected to connecting plate 115 via a track.

[0023] As a technical optimization of this utility model, the inner sidewall of the second plate 120 is rotatably connected to a follower clamping ring 119 via a rotating shaft.

[0024] As a technical optimization of this utility model, a limit ring 105 is installed on the outer wall of the telescopic rod 104.

[0025] As a technical optimization of this utility model, pulley 106 and pulley 2109 are located at the same height, and belts are installed on pulley 106 and pulley 2109.

[0026] As a technical optimization of this utility model, a collar 111 is installed on the plate 122, and the outer side wall of the lifting base 110 is slidably connected to the inner side wall of the collar 111.

[0027] As a technical optimization of this utility model, a support plate 121 is installed on the top of the lifting plate 117, and a follow-up pressing block 118 is rotatably connected to the bottom of the support plate 121 via a rotating shaft.

[0028] As a technical optimization of this utility model, the outer wall dimension of the follower pressing block 118 is smaller than the inner wall dimension of the follower pressing ring 119.

[0029] Working principle: First, the metal kettle body to be welded is placed upside down on the kettle body contour jig 112 at the top of the lifting base 110. This jig achieves initial positioning by precisely matching the inner wall of the kettle body. Then, cylinder 102 immediately drives the telescopic rod 104 to extend vertically. The limiting ring 105 on the outer side of the telescopic rod 104 controls the stroke. Simultaneously, the outer wall of the lifting base 110 slides and guides on plate 122 via collar 111, ensuring that the lifting base 110 smoothly raises the kettle body along an absolutely vertical trajectory to the welding position. At this time, the kettle spout and the follow-up clamping ring 119 on plate 120 remain coaxially aligned. The operator then places the round bottom plate of the kettle onto the kettle body end. Cylinder 2 114 pushes the telescopic rod downwards along the track on the side of the connecting plate 115, causing the lifting plate 117 and support plate 121 to descend as a whole. After the follower pressing block 118 at the bottom of the support plate 121 contacts the round bottom plate, it completes radial centering under the concentric constraint of the follower pressing ring 119. At the same time, the cylinder 2 114 continuously applies pressure to achieve a tight fit between the round bottom plate and the end face of the kettle body, completely eliminating assembly gaps. During the welding stage, the motor 108 starts and drives the pulley 2 109 to rotate through the connecting rod. The pulley 2 109 transmits power to the telescopic rod 104 via a belt. The rigidly engaged pulley 106, through a flat key and telescopic rod 104, forms a torque transmission mechanism with no relative slippage. The rotational motion is directly coupled to the lifting base 110, causing the teapot body conforming fixture 112 and the clamped teapot body and round bottom plate assembly to rotate at a constant speed. During this process, the laser welding gun is fixedly irradiated at the joint between the teapot body and the round bottom plate, while the cylinder 102 can finely adjust the height of the telescopic rod 104 in real time according to the welding process requirements, ensuring that the welding focus always precisely tracks the weld seam. At this time, the flat key engagement mechanism ensures that any vertical displacement of the lifting base 110 is strictly synchronized with the rotational motion, completely eliminating... In addition to the speed fluctuations or phase differences caused by shaft separation in traditional step-by-step control, dynamic clamping force suppresses assembly vibration, and contour positioning and coaxial clamping eliminate radial misalignment. The three work together to ensure consistent weld depth and no porosity defects. After welding is completed, motor 108 stops, cylinder 102 retracts telescopic rod 104 to lower and reset the kettle body, and cylinder 2 114 lifts the follow-up clamping block 118 to release the clamping. The operator can then take out the finished kettle. The entire process eliminates manual alignment deviation through contour positioning, solves asynchronous movement through rotation and lifting linkage, and achieves self-correction of assembly through dynamic clamping, ultimately achieving a high-sealing laser weld.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding fixture mechanism for a laser bottom plate of a kettle, comprising a plate (101) and a support (107); characterized in that: A cylinder (102) is installed at the bottom of the plate (101). A telescopic rod (104) is slidably connected to the inner wall of the cylinder (102). Three support rods (103) are installed at the top of the plate (101). A plate (122) is installed at the top of the three support rods (103). A lifting base (110) is installed at the top of the telescopic rod (104). A pulley (106) is slidably connected to the telescopic rod (104). A flat key is provided on the telescopic rod (104). The flat key meshes with the inside of the pulley (106). A pulley (109) is rotatably connected to the inner wall of the bracket (107) via a rotating shaft. A motor (108) is installed at the bottom of the bracket (107). The output end of the motor (108) is fixedly connected to the bearing of the pulley two (109) via a connecting rod. The top of the lifting base (110) is equipped with a jig (112) for shaping the pot body. The top of the plate three (122) is fixedly connected with four support rods two (113). The top of the four support rods two (113) is equipped with a plate two (120). A connecting plate (115) is installed on one side of the plate two (120). A cylinder two (114) is installed on one side of the connecting plate (115). A telescopic rod two (116) is slidably connected to the inner wall of the cylinder two (114). A lifting plate (117) is installed on the top of the telescopic rod two (116). One side of the lifting plate (117) is slidably connected to the connecting plate (115) via a track.

2. The welding fixture mechanism of the laser machine for a circular bottom plate of a pot as described in claim 1, characterized in that: The inner wall of the second plate (120) is rotatably connected to a follower clamping ring (119) via a rotating shaft.

3. The welding fixture mechanism for a laser bottom plate laser machine as described in claim 2, characterized in that: A limit ring (105) is installed on the outer wall of the telescopic rod (104).

4. The welding fixture mechanism of the laser machine for a circular bottom plate of a pot as described in claim 3, characterized in that: The first pulley (106) and the second pulley (109) are at the same height, and belts are installed on the first pulley (106) and the second pulley (109).

5. The welding fixture mechanism of the laser machine for a circular bottom plate of a pot as described in claim 4, characterized in that: A collar (111) is installed on the plate three (122), and the outer wall of the lifting base (110) is slidably connected to the inner wall of the collar (111).

6. The welding fixture mechanism of the laser machine for a circular bottom plate of a pot as described in claim 5, characterized in that: The top of the lifting plate (117) is equipped with a support plate (121), and the bottom of the support plate (121) is rotatably connected to a follower pressing block (118) via a rotating shaft.

7. The welding fixture mechanism of a laser machine for a circular bottom plate as described in claim 6, characterized in that: The outer wall dimension of the follower clamping block (118) is smaller than the inner wall dimension of the follower clamping ring (119).

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