A fixture for welding a can body

Abstract

The utility model relates to fermentation vat processing technical field especially a kind of clamp for tank body welding, including base, first trolley, clamping part, sliding seat, second trolley, two open-close arms and adjusting component;First trolley is horizontally connected with base;Clamping part is installed on base for clamping cylinder outside;Sliding seat is connected with base left and right sliding;Second trolley is horizontally connected with sliding seat and rotation axis is coaxially arranged with the rotation axis of first trolley;Two open-close arms are symmetrically arranged relative to second trolley rotation axis and one end is connected with second trolley, and suction cup for adsorbing end cover outside is arranged in open-close arm inside;Adjusting component is installed on second trolley and is used to adjust the opening angle of two clamping arms.The clamp for tank body welding of the utility model is used to clamp cylinder and end cover, to realize the radial position positioning and axial position positioning of end cover and cylinder, so that the positioning precision consistency of cylinder and end cover is higher, to ensure the welding precision of cylinder and end cover.

Description

Technical Field

[0001] This utility model relates to the field of fermentation tank processing technology, and in particular to a jig for tank welding. Background Technology

[0002] Fermentation tanks, as a common type of fermentation equipment, are widely used in various industries such as food, beverage, and pharmaceuticals. Their main function is to provide a relatively closed and controllable environment for the fermentation process, ensuring that the fermenting materials react under suitable temperature, humidity, and aeration conditions to obtain high-quality fermented products. Fermentation tanks come in various structures, generally consisting of a tank body, end caps, a stirring device, a temperature control device, and inlet / outlet ports. The tank body is the core component of the fermentation tank; its shape and size have a significant impact on the efficiency of the fermentation process and the quality of the product.

[0003] Among the various structural forms of fermentation tanks, one type features a cylindrical body in the middle and a conical end cap at the bottom. During the welding process between the middle cylinder and the conical end cap, the tank is prone to rolling when placed horizontally for welding because both the cylindrical body and the conical end cap have curved sides. This instability greatly complicates the welding operation, increasing the difficulty and safety risks. If the tank is placed vertically for welding, the vertical position of the end cap and the cylinder needs to be repeatedly adjusted to ensure accurate alignment. This requires operators to frequently position the end cap and the cylinder, and the consistency of manual positioning makes it difficult to guarantee the welding accuracy between the cylinder and the end cap. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a jig for welding tanks, which can ensure the welding accuracy of the cylinder and the end cap.

[0005] To solve the above-mentioned technical problems, this utility model provides a tank welding fixture, comprising:

[0006] Base;

[0007] The first rotating frame is horizontally rotatably connected to the base;

[0008] Clamping components, mounted on the base, are used to clamp the outer side of the cylinder;

[0009] The sliding base is connected to the base by sliding left and right.

[0010] The second rotating frame is horizontally rotatably connected to the slide block, and its rotation axis is coaxial with the rotation axis of the first rotating frame.

[0011] Two opening and closing arms are symmetrically arranged relative to the rotation axis of the second rotating frame and one end of the arms is connected to the second rotating frame. The inner side of the opening and closing arms is provided with a suction cup for adsorbing the outer side of the end cap.

[0012] And adjusting components, which are installed on the second rotating frame and used to adjust the opening and closing angles of the two locking arms.

[0013] As an improvement to the above solution, the clamping component includes two translational clamping arms symmetrically arranged relative to the rotation axis of the first rotating frame and slidably connected to the first rotating frame, with the inner side used to clamp the outer side of the cylinder, and a first driving mechanism mounted on the first rotating frame for driving the two translational clamping arms to synchronously approach or move away from the rotation axis of the first rotating frame.

[0014] As an improvement to the above solution, the translational clamping arm is provided with an outwardly concave positioning stepped surface.

[0015] As an improvement to the above solution, the clamping component also includes two soft pads correspondingly disposed on the clamping surface of the positioning step surface.

[0016] As an improvement to the above solution, the first drive mechanism includes a drive cylinder mounted on the first rotating frame and disposed at the central axis of the two translational clamping arms, and two first connecting rods symmetrically arranged relative to the rotation axis of the first rotating frame. The extension and retraction direction of the output end of the drive cylinder is perpendicular to the movement direction of the translational clamping arms. One end of the two first connecting rods is hinged to the output end of the drive cylinder, and the other end is correspondingly hinged to the two translational clamping arms.

[0017] As an improvement to the above solution, the adjustment component includes two translation sliders symmetrically arranged relative to the rotation axis of the second rotating frame and slidably connected to the second rotating frame, a second drive mechanism mounted on the second rotating frame for driving the two translation sliders to synchronously approach or move away from the rotation axis of the second rotating frame, and two second connecting rods symmetrically arranged relative to the rotation axis of the second rotating frame. One end of the two second connecting rods is hinged to the output end of the second drive mechanism, and the other end is hinged to the middle of the two opening and closing arms.

[0018] As an improvement to the above solution, the second drive mechanism includes an adjusting screw rotatably connected to the second rotating frame and an adjusting wheel fixed to one end of the adjusting screw. The adjusting screw is provided with a first threaded section and a second threaded section that rotate in opposite directions and have the same lead. The first threaded section and the second threaded section are threadedly connected to two translation sliders.

[0019] As an improvement to the above solution, the tank welding fixture of this utility model also includes a locking component mounted on the slide and used to lock the relative position of the slide and the base.

[0020] As an improvement to the above solution, the base is provided with guide rails extending to the left and right, the slide is provided with a slide groove that matches the guide rails, and the locking component includes a locking bolt that is threaded to the slide and has one end for extending into the slide groove and being opposite to the guide rail.

[0021] Implementing this utility model has the following beneficial effects:

[0022] The tank welding fixture of this utility model, through the cooperation of a base, a first rotating frame, a clamping component, a sliding seat, a second rotating frame, two opening and closing arms, and an adjusting component, achieves radial and axial positioning of the end cover and the tank after clamping the tank body and the end cover, so that the positioning accuracy of the tank body and the end cover is highly consistent, ensuring the welding accuracy of the tank body and the end cover. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic front view of the tank welding fixture in an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the structure in which the clamping component is installed on the first rotating frame in an embodiment of the present invention;

[0026] Figure 3 This is a schematic left view of the structure in this utility model embodiment where the clamping component is mounted on the first rotating frame;

[0027] Figure 4 This is a schematic diagram of the structure of the opening and closing arm and the adjusting component installed on the second rotating frame in this embodiment of the present invention;

[0028] Figure 5 This is a schematic right view of the structure in this utility model embodiment where the adjusting component is mounted on the second rotating frame;

[0029] Figure 6 This is a schematic diagram of the adjusting lead screw in an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram illustrating the working principle of the locking bolt in this embodiment of the present invention.

[0031] In the picture:

[0032] 100. Base; 110. Guide rail;

[0033] 200. First rotating frame;

[0034] 300. Clamping component; 310. Translational clamping arm; 311. Positioning stepped surface; 320. First drive mechanism; 321. Drive cylinder; 322. First connecting rod; 330. Soft pad;

[0035] 400. Slide block; 410. Slide groove;

[0036] 500, Second Turntable;

[0037] 600. Opening / closing arm; 610. Suction cup;

[0038] 700. Adjusting component; 710. Translation slider; 720. Second drive mechanism; 721. Adjusting screw; 722. Adjusting wheel; 723. First threaded section; 724. Second threaded section; 730. Second connecting rod;

[0039] 800. Locking component; 810. Locking bolt. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings.

[0041] like Figures 1 to 7 As shown in the figure, a tank welding fixture in this embodiment of the present invention includes a base 100, a first rotating frame 200, a clamping component 300, a slide 400, a second rotating frame 500, two opening and closing arms 600, and an adjusting component 700.

[0042] The first rotating frame 200 is horizontally rotatably connected to the base 100; the clamping component 300 is mounted on the base 100 for clamping the outer side of the cylinder. In practice, the clamping component 300 can be a multi-finger gripper, a V-shaped clamping block, a vacuum disk, or an electromagnetic adsorption component (used when the cylinder is made of a material that can be magnetically attracted). It can clamp the outer side of the cylinder and make the cylinder's axis of rotation coincide with the rotation axis of the first rotating frame 200 and be parallel to the horizontal plane. At the same time, it drives the cylinder to rotate so that the angle of the cylinder can be adjusted to adjust the welding position of the cylinder.

[0043] The slide 400 is slidably connected to the base 100; the second rotating frame 500 is horizontally rotatably connected to the slide 400 and its rotation axis is coaxial with the rotation axis of the first rotating frame 200; the two opening and closing arms 600 are symmetrically arranged relative to the rotation axis of the second rotating frame 500 and one end of them intersects with the second rotating frame 500; the inner side of the opening and closing arm 600 is provided with a suction cup 610 for adsorbing the outer side of the end cap. In fact, the end cap is conical and the size of the welded part matches the size of the end of the cylinder. The inner side of the opening and closing arm 600 faces the end cap, and the outer side faces away from the end cap. The suction cup 610 can be a vacuum adsorption type or an electromagnetic adsorption type (used when the cylinder is made of a material that can be magnetically adsorbed), so that the end cap can be adsorbed and fixed on the inner side of the two opening and closing arms 600. At this time, the axis of the end cap coincides with the rotation axis of the second rotating frame 500 and is parallel to the horizontal plane, that is, it coincides with the axis of the cylinder clamped in the first rotating frame 200, thereby realizing the radial positioning of the end cap and the cylinder. Then, the position of the slide 400 is adjusted to realize the axial positioning of the end cap and the cylinder, so that the positioning accuracy of the cylinder and the end cap is highly consistent.

[0044] The adjusting component 700 is mounted on the second rotating frame 500 and is used to adjust the opening and closing angles of the two clamping arms. In practice, the adjusting component 700 can be two synchronously acting cylinders, hydraulic rods, electric telescopic rods, or a translation device in conjunction with two connecting rods, which can adjust the opening and closing angles of the two opening and closing arms 600 to achieve the clamping of the cylinder and is applicable to end caps with different clamping angles within a certain range.

[0045] The specific working principle of the tank welding fixture of this utility model is as follows: The cylinder is clamped on the clamping component 300 of the first rotating frame 200; the opening and closing angle of the two locking arms is adjusted by the adjusting component 700 so that the end cap is attracted between the two opening and closing arms 600; the position of the end cap and the cylinder is adjusted left and right to achieve positioning between the cylinder and the end cap; the end cap and the cylinder are welded (first spot welding is performed so that the end cap and the cylinder can rotate synchronously, and then full welding is performed to complete the welding. Welding can be carried out manually or automatically. The specific welding structure, principle and process will not be described in detail); the welded cylinder and end cap are removed manually or with the help of a crane, and the next cylinder and end cap are clamped for welding.

[0046] The tank welding fixture of this utility model, through the cooperation of the base 100, the first rotating frame 200, the clamping component 300, the slide 400, the second rotating frame 500, the two opening and closing arms 600 and the adjusting component 700, achieves radial and axial positioning of the end cover and the tank body after clamping the tank body and the end cover, so that the positioning accuracy of the tank body and the end cover is highly consistent, ensuring the welding accuracy of the tank body and the end cover.

[0047] Specifically, such as Figure 2As shown, the clamping component 300 preferably includes two symmetrically arranged translational clamping arms 310 arranged relative to the rotation axis of the first rotating frame 200 and slidably connected to the first rotating frame 200, with the inner side used to clamp the outer side of the cylinder, and a first drive mechanism 320 mounted on the first rotating frame 200 for driving the two translational clamping arms 310 to synchronously approach or move away from the rotation axis of the first rotating frame 200. In practice, the first drive mechanism 320 can be two synchronously acting cylinders, hydraulic rods, electric telescopic rods, or a translation component in conjunction with gears, racks, connecting rods, etc., which can drive the translational clamping arms 310 to synchronously approach or move away to clamp the outer side of the cylinder, fix the cylinder to the first rotating frame 200 with the cylinder's axis of rotation coinciding with the axis of rotation of the first rotating frame 200, and can adapt to cylinders of different outer diameters within a certain range.

[0048] Furthermore, the translational clamping arm 310 preferably has an outwardly concave positioning stepped surface 311, such as... Figure 2 As shown, the positioning stepped surface 311 is concave in a direction away from the axis of the first rotating frame 200, and has a clamping surface parallel to the axis of the first rotating frame 200 (for contacting the outer side of the cylinder) and a positioning surface perpendicular to the axis of the first rotating frame 200 (for contacting the end of the cylinder), thereby achieving the function of clamping the cylinder and positioning its axial position. Furthermore, the clamping component 300 preferably includes two soft pads 330 correspondingly disposed on the clamping surface of the positioning stepped surface 311. Since the soft pads 330 have a certain degree of elasticity, the soft pads 330 replace the translational clamping arm 310 in contact with the outer side of the cylinder, reducing scratches on the cylinder.

[0049] Specifically, such as Figure 3As shown, the first driving mechanism 320 preferably includes a driving cylinder 321 mounted on the first rotating frame 200 and disposed at the central axis of the two translational clamping arms 310, and two first connecting rods 322 symmetrically arranged relative to the rotation axis of the first rotating frame 200. The extension and retraction direction of the output end of the driving cylinder 321 is perpendicular to the movement direction of the translational clamping arms 310. One end of each of the two first connecting rods 322 is hinged to the output end of the driving cylinder 321, and the other end is correspondingly hinged to the two translational clamping arms 310. In practice, the driving cylinder 321 drives one end of the two first connecting rods 322 to move radially along the axis of the first rotating frame 200 simultaneously, thereby driving the two translational clamping arms 310 to move closer or further apart radially along the axis of the first rotating frame 200 simultaneously, so as to clamp or release the outer side of the cylinder. At the same time, the driving cylinder 321 can also provide a certain clamping force for the two translational clamping arms 310 to clamp the outer side of the cylinder. It should be noted that the air supply pipe of the drive cylinder 321 can be connected with a flexible hose and a rotary connector to prevent the air supply pipe from getting tangled after the first rotating frame 200 rotates multiple times. Alternatively, the air supply pipe of the drive cylinder 321 can be directly made of a flexible hose. The flexible hose has a certain deformation space. By controlling the number of rotations of the first rotating frame 200 within a certain range during welding, the air supply pipe can be prevented from getting tangled after the first rotating frame 200 rotates multiple times.

[0050] Specifically, such as Figure 4 and Figure 5 As shown, the adjusting component 700 preferably includes two translation sliders 710 symmetrically arranged relative to the rotation axis of the second rotating frame 500 and slidably connected to the second rotating frame 500; a second drive mechanism 720 mounted on the second rotating frame 500 for driving the two translation sliders 710 to synchronously approach or move away from the rotation axis of the second rotating frame 500; and two second connecting rods 730 symmetrically arranged relative to the rotation axis of the second rotating frame 500. One end of each of the two second connecting rods 730 is hinged to the output end of the second drive mechanism 720, and the other end is correspondingly hinged to the middle of the two opening and closing arms 600. In practice, the second drive mechanism 720 can be two synchronously acting cylinders, hydraulic rods, electric telescopic rods, or a translation component combined with gears, racks, connecting rods, etc., which can drive the translation sliders 710 to synchronously approach or move away. The movement of the translation sliders 710 drives the second connecting rods 730 to swing, thereby driving the opening and closing arms 600 to swing, causing the two opening and closing arms 600 to open or close, thus realizing the clamping and releasing of the end cap.

[0051] Specifically, the second drive mechanism 720 preferably includes an adjusting screw 721 rotatably connected to the second rotating frame 500 and an adjusting wheel 722 fixed to one end of the adjusting screw 721, such as... Figure 6As shown, the adjusting screw 721 has a first threaded section 723 and a second threaded section 724 with opposite rotation and the same lead. The first threaded section 723 and the second threaded section 724 are threadedly connected to two translation sliders 710. In fact, when the adjusting screw 721 rotates, the two translation sliders 710 move synchronously towards or away from each other along the screw axis under the guidance of the first threaded section 723 and the second threaded section 724. The synchronization is good. Because the lead is the same, the two sliders move the same distance per revolution, which can ensure that the two translation sliders 710 move the same distance.

[0052] As an improvement to the above solution, the tank welding fixture of this utility model further includes a locking component 800 mounted on the slide 400 and used to lock the relative position of the slide 400 and the base 100. In practice, the locking component 800 can be a hydraulic cylinder type lock, a bolt clamping type lock, a wedge block type lock, or a claw type lock. After the slide 400 moves left and right relative to the base 100 to adjust the relative position of the cylinder and the end cap, the locking component 800 locks the relative position of the slide 400 and the base 100, thereby locking the relative position of the cylinder and the end cap. This prevents accidental contact with the slide 400 during welding, which could cause the slide 400 to move and affect the welding of the cylinder and the end cap.

[0053] Specifically, the base 100 preferably has guide rails 110 extending to the left and right, the slide 400 has a slide groove 410 that matches the guide rail 110, and the locking component 800 includes a locking bolt 810 that is threaded to the slide 400 and has one end for extending into the slide groove 410 and opposite to the guide rail 110. In fact, the bolt-tightening locking method uses the pressure generated by tightening the locking bolt 810 to clamp the guide rail 110 into the slide groove 410. To unlock, the locking bolt 810 is loosened, resulting in a simple structure and convenient operation.

[0054] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents. Those skilled in the art can make various other corresponding changes and modifications based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A fixture for welding tank bodies, characterized in that: include Base; The first rotating frame is horizontally rotatably connected to the base; Clamping components, mounted on the base, are used to clamp the outer side of the cylinder; The sliding base is connected to the base by sliding left and right. The second rotating frame is horizontally rotatably connected to the slide block, and its rotation axis is coaxial with the rotation axis of the first rotating frame. Two opening and closing arms are symmetrically arranged relative to the rotation axis of the second rotating frame and one end of the arms is connected to the second rotating frame. The inner side of the opening and closing arms is provided with a suction cup for adsorbing the outer side of the end cap. And adjusting components, which are installed on the second rotating frame and used to adjust the opening and closing angles of the two locking arms.

2. The fixture for welding tanks as described in claim 1, characterized in that: The clamping component includes two translational clamping arms symmetrically arranged relative to the rotation axis of the first rotating frame and slidably connected to the first rotating frame, with the inner side used to clamp the outer side of the cylinder, and a first driving mechanism mounted on the first rotating frame for driving the two translational clamping arms to synchronously approach or move away from the rotation axis of the first rotating frame.

3. The fixture for welding tanks as described in claim 2, characterized in that: The translational clamping arm has an outwardly concave positioning stepped surface.

4. The fixture for welding tanks as described in claim 3, characterized in that: The clamping component also includes two soft pads that are correspondingly set on the clamping surface of the positioning step surface.

5. The fixture for welding tanks as described in claim 2, characterized in that: The first drive mechanism includes a drive cylinder mounted on the first rotating frame and disposed at the central axis of the two translational clamping arms, and two first connecting rods symmetrically arranged relative to the rotation axis of the first rotating frame. The extension and retraction direction of the output end of the drive cylinder is perpendicular to the movement direction of the translational clamping arms. One end of the two first connecting rods is hinged to the output end of the drive cylinder, and the other end is correspondingly hinged to the two translational clamping arms.

6. The fixture for welding tanks as described in claim 1, characterized in that: The adjustment component includes two translation sliders symmetrically arranged relative to the rotation axis of the second rotating frame and slidably connected to the second rotating frame, a second drive mechanism mounted on the second rotating frame for driving the two translation sliders to synchronously approach or move away from the rotation axis of the second rotating frame, and two second connecting rods symmetrically arranged relative to the rotation axis of the second rotating frame. One end of the two second connecting rods is hinged to the output end of the second drive mechanism, and the other end is hinged to the middle of the two opening and closing arms.

7. A fixture for welding tank bodies as described in claim 6, characterized in that: The second drive mechanism includes an adjusting screw rotatably connected to the second rotating frame and an adjusting wheel fixed to one end of the adjusting screw. The adjusting screw has a first threaded section and a second threaded section with opposite rotation and the same lead. The first threaded section and the second threaded section are threadedly connected to two translation sliders.

8. The fixture for welding tanks as described in claim 1, characterized in that: It also includes a locking component mounted on the slide and used to lock the relative position of the slide and the base.

9. A fixture for welding tank bodies as described in claim 8, characterized in that: The base is provided with guide rails extending to the left and right, the slide is provided with a slide groove that matches the guide rails, and the locking component includes a locking bolt that is threaded to the slide and has one end for extending into the slide groove and being opposite to the guide rail.

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