Horizontal three-dimensional stirring device and processing method thereof

Abstract

This invention discloses a horizontal three-dimensional stirring device and its processing method, belonging to the field of horizontal mixer manufacturing. The stirring device of this invention includes a stirring shaft horizontally rotating and fixed to a horizontal cylindrical body, and spiral stirring blades fixedly connected to the stirring shaft via stirring arms. The shaft body is a symmetrical plane with a polygonal cross-section, and the stirring arms are vertically fixed to the plane. The spiral stirring blades are formed by welding at least two spiral panels together in a spiral shape, with the ends welded together. Each spiral panel includes an end plate one and an end plate two integrally connected to both ends of the spiral panel. End plate one and end plate two are respectively set as an arc-shaped horizontal surface and an arc-shaped inclined surface. Compared to uneven arc surfaces, the ends of the horizontal and inclined surfaces are easier to fix and weld, and also facilitate fixed connection with the stirring arms. The circumferential surface of the stirring shaft is improved into a plane that facilitates the vertical installation of the stirring arms, improving the consistency and parameter accuracy of the spiral stirring blades while also effectively improving the stability during stirring.

Description

Technical Field

[0001] This invention belongs to the field of horizontal mixer manufacturing, and more specifically, relates to a horizontal three-dimensional mixing device and its processing method. Background Technology

[0002] Horizontal industrial mixers are widely used in concrete mixing, cement mixing, and other fields. To produce high-quality products economically and efficiently, mixer manufacturers continuously optimize and improve the structure of their mixers, further enhancing performance in areas such as mixing uniformity and efficiency. For example, the patent announcement number CN201067678Y, published on September 30, 2015, discloses a high-efficiency horizontal mixer and commercial mortar mixing equipment. This includes a horizontal cylindrical body, a rotatable supporting mixing shaft passing axially through the cylindrical body, and multiple mixing units mounted on the mixing shaft. Each mixing unit includes an upright mixing arm connected to the mixing shaft, a first mixing blade at the end of the mixing arm, and a second mixing blade perpendicularly positioned in the middle of the mixing arm and extending away from the first mixing blade. This horizontal mixer generates a three-dimensional mixing effect through the first and second mixing blades, enabling materials to achieve uniform mixing in a short time. With continuous improvement in the performance of the mixer, this technology continues to advance. The stirring blades used are spiral in shape. The design parameters of the spiral agitator, including the outer diameter of the spiral, the spiral lead, the spiral angle, the number of spiral heads, and the wear resistance parameters, are key parameters affecting the overall performance of the mill. When there are multiple spiral layers, the spiral-shaped integral product needs to be formed by casting wear-resistant alloy blades and then directly welded to the main shaft. After wear, the whole thing needs to be replaced or repaired at a high cost. In recent years, mill manufacturers around the world have been developing split spiral agitator structures to facilitate the installation and disassembly of spiral blades and replace interchangeable spiral agitator blades. The split structure not only needs to be easy to connect and fix, but also needs to ensure that the process parameters of the spiral agitator remain consistent after connection, which is quite difficult. The installation accuracy is difficult to guarantee. Moreover, the circular circumference of the agitator shaft makes the vertical installation of the agitator arm and the stability after installation need to be improved.

[0003] To address the above issues, a search revealed Chinese Patent Publication No. CN 71889978 A, published on February 25, 2022, which discloses a method for manufacturing large vertical mill spiral agitator blades. This method effectively solves the problems of inconvenient operation and inability to guarantee the process parameters of spiral agitators in existing technologies. The technical solution involves obtaining operating parameters through two-dimensional and three-dimensional computer simulations of the spiral blade flow field. Based on experimental data and theoretical calculations, the blade shape and blade tray dimensions are optimized. A preliminary cutting drawing is obtained through layout and unfolding. Then, a 3D jig drawing and template drawing are derived through simulation. After manufacturing the matching jig, cold pressing is performed using the jig. Reasonable deformation compensation is allowed after the tray is cut, and the spiral agitator blade cutting drawing is further refined. This invention improves production efficiency while strictly controlling quality, achieving high precision standards and increasing the first-pass yield. However, this invention has a complex process, requiring multiple computer simulations for compensation during molding, and necessitates numerous redundant designs within the cylindrical body, limiting its application scenarios. Summary of the Invention

[0004] 1. The problem to be solved

[0005] To address the shortcomings in the installation accuracy and stability of components such as stirring blades and stirring shafts in existing horizontal stirring devices, this invention provides a horizontal three-dimensional stirring device and its processing method. The two ends of the disassembled spiral panel are specially designed with mutually curved horizontal and curved inclined surfaces to facilitate welding connections and control connection accuracy. Furthermore, the circumferential surface of the stirring shaft is modified to a plane that facilitates the vertical installation of the stirring arm. This improves the consistency and parameter accuracy of the spiral stirring blades while also effectively enhancing the stability of the stirring operation.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A horizontal three-dimensional stirring device includes a stirring shaft fixedly to a horizontal cylindrical body in a transverse rotational manner and a spiral stirring blade fixedly connected to the stirring shaft via a stirring arm. The shaft body of the stirring shaft is a symmetrical plane with a polygonal cross-section, and the stirring arm is vertically fixedly connected to the plane. The spiral stirring blade is formed by welding at least two spiral panels together in a spiral shape, with the ends of the spiral panels welded together. The spiral panels include an end plate one and an end plate two integrally connected to both ends of the spiral panels. The end plate one and the end plate two are respectively set as an arc-shaped horizontal plane and an arc-shaped inclined plane. During manufacturing, the multi-layered spiral stirring blades can be disassembled into multiple single-layer or even half-layer spiral panel units. The design or production of single-layer or even half-layer spiral panel units is much easier, requiring only the solution of ensuring the consistency of the spiral parameters after connection. After the single-layer or even half-layer spiral panels are produced, simple hot forging can be used to process them into two ends that are curved horizontal surfaces and curved inclined surfaces, respectively. That is, when one end is a curved horizontal surface, the other end is a curved inclined surface. Compared to uneven curved surfaces, the ends of the horizontal and inclined surfaces are easier to fix and weld. After welding, it is also convenient to fix and connect them to the stirring arm. The circumferential surface of the stirring shaft is improved into a plane that facilitates the vertical installation of the stirring arm, which improves the consistency and parameter accuracy of the spiral stirring blades, while also effectively improving the stability of the stirring operation.

[0009] A further technical solution is to clamp and fix the agitator shaft when machining a symmetrical plane using a machining fixture, thereby improving the stability and machining accuracy of the plane cutting of the agitator shaft; when welding the spiral agitator blades, the end plate one of one spiral panel and the end plate two of another spiral panel are welded and fixed using a blade welding fixture, thereby improving the stability and machining accuracy of the spiral agitator blade welding process.

[0010] A further technical solution involves a blade welding fixture comprising a welding platform and, from left to right, three inclined platforms (a second, a square, and a first) arranged in an arc and fixed to the welding platform. These platforms allow for the individual fitting and fixing of end plates one and two of the two helical panels, facilitating consistent welding operations. The blade welding fixture includes an operating platform, clamping platforms, and a clamping mechanism. The clamping platforms are horizontally fixed side-by-side on the operating platform, and the clamping mechanism is configured to cooperate with each clamping platform. The journals at both ends of the stirring shaft overlap the two clamping platforms, and the clamping mechanism presses the journals into the two clamping platforms. Then, the shaft body of the stirring shaft to be processed is machined to create a square plane. The combination of the clamping platforms and the clamping mechanism effectively clamps and fixes the stirring shaft during the machining process, thereby improving the machining accuracy of the square plane.

[0011] A further technical solution involves the heights of ramp two, square platform, and ramp one decreasing sequentially, also known as descending in sequence. The descending distance is consistent with the spiral lead in the spiral parameters, maintaining its machining accuracy during welding. A chute is provided on the operating platform along the axial direction of the stirring shaft, typically consisting of multiple parallel chutes. The clamping platform and pressing mechanism are both fixedly connected to the chute via fasteners, allowing the tooling position to be adjusted via the chute, thus saving effort during operation.

[0012] A further technical solution involves matching the slope of ramp two and ramp one with the helix angle of the spiral panel, further ensuring the consistency of the spiral stirring blades after welding; the clamping platform includes a V-groove, with wing protrusions extending from the bottom of the V-groove to both sides for easy fixing, and an open V-groove opening at the top for easy insertion of the journals at both ends of the stirring shaft; the wing protrusions are fixedly connected to the slide groove by fasteners, which can be detachable connectors such as screws or snap-fit ​​connectors, for easy disassembly, relocation, and position adjustment.

[0013] A further technical solution is that the curvature of the arc line matches the upper projection curvature of the spiral panel and is consistent with the outer diameter of the spiral in the spiral parameters; the clamping mechanism includes a support and a plate. The two ends of the plate are respectively connected to the support and the journal, and then fixedly connected to the slide groove by fasteners. The fasteners can be detachable connectors such as screws and snap-fits, which facilitate disassembly, relocation, and position adjustment.

[0014] A further technical solution involves providing stop bars, bolt holes, and / or guide rods on ramp 2, the square platform, and ramp 1 to match the guide holes and / or fixing holes vertically perforated on end plate 1 and end plate 2. This facilitates stability during welding and ensures the consistency of the welded product. During welding, end plate 1 of one spiral panel and end plate 2 of another spiral panel can be laid side by side on the welding platform and then welded and fixed. The operation is simple, requiring no computer simulation compensation, resulting in low welding cost and high precision. Pads are also provided between the support and the plate to adjust the balance of the two ends of the plate according to the diameter of the journal.

[0015] Further welding fixtures include pressure plates that press the end plate one of one spiral panel and the end plate two of another spiral panel onto the square platform to prevent displacement of the spiral panels during welding, which would affect the welding quality.

[0016] Further improvements to the welding fixture include a slot at the end of the pressure plate, facilitating its interaction with the fixing holes and maintaining stability during welding. Both the V-groove and the bottom of the support extend downwards with protrusions, sliding smoothly into the groove via these protrusions, allowing for effortless operation.

[0017] A welding method for a horizontal three-dimensional stirring device, comprising the following steps:

[0018] After the journals at both ends of the stirring shaft to be processed are respectively overlapped on two clamping tables, the journals are pressed into the two clamping tables by a clamping mechanism. The shaft body of the stirring shaft to be processed is cut by a cutting machine tool to create a square plane. The stirring shaft body is flipped over, and the other planes are processed in sequence.

[0019] The end plate 2 of one spiral panel is fixed to the slope of the first slope platform, and the end plate 1 of the other spiral panel is fixed to the slope of the second slope platform. The end plates 1 and 2 at the other end of the two spiral panels are laid side by side on the square platform, with a weld gap reserved in the middle. The two spiral panels are welded together along the weld gap to form a spiral stirring blade.

[0020] The stirring arm is vertically fixed to the plane of the stirring shaft, and the spiral stirring blades are then fixed to the stirring arm in a spiral shape.

[0021] The entire welding and clamping process is simple to operate and highly practical. It is suitable for both manual welding and welding robots to weld along the designed welding route, making it easy to promote.

[0022] 3. Beneficial effects

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] (1) The horizontal three-dimensional stirring device and its processing method of the present invention, compared with the existing horizontal three-dimensional stirring device with multiple spiral layers, the difficulty of producing spiral stirring blades in one piece, and the difficulty of ensuring the parameters of each spiral after disassembly and reconnection, the present invention disassembles the spiral stirring blades with multiple spiral layers into multiple single-layer or even half-layer spiral panel units. The design or production of single-layer or even half-layer spiral panel units is much easier. It is only necessary to solve the problem of consistency of each spiral parameter after connection. After the single-layer or even half-layer spiral panel is produced, it can be processed into two ends with arc-shaped horizontal plane and arc-shaped inclined plane after simple hot forging. That is, when one end is an arc-shaped horizontal plane, the other end is an arc-shaped inclined plane. During welding, the end plate one of one spiral panel and the end plate two of another spiral panel can be laid side by side on the welding platform and then welded and fixed. The operation is simple, no computer simulation compensation is required, and the welding cost is low and the precision is high.

[0025] (2) The horizontal three-dimensional stirring device and its processing method of the present invention stably clamp the stirring shaft to be processed through the coordinated cooperation of V-groove, support and plate, and fix the entire tooling stably on the operating platform through the cooperation of T-groove and T-bolt, and then perform smooth cutting processing on the shaft body by machine tool, thereby improving the processing accuracy of square plane.

[0026] (3) The horizontal three-dimensional stirring device of the present invention has spiral stirring blades that are arc-shaped horizontal planes and arc-shaped inclined planes. This facilitates the welding connection of the spiral stirring blades and coordinates with the square plane of the stirring shaft body. This improves the convenience and stability of the stirring arm in detachably fixing the spiral stirring blades and stirring shaft, avoids redundant design and precision deviation of arc surface installation, and improves the installation accuracy. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a horizontal three-dimensional stirring device according to a specific embodiment;

[0028] Figure 2 for Figure 1 A three-dimensional view of the stirring shaft in the image;

[0029] Figure 3 for Figure 2 Side view;

[0030] Figure 4 for Figure 1 A three-dimensional view of the spiral stirring blades in the image;

[0031] Figure 5 This is a schematic diagram of the spiral panel structure in a specific embodiment;

[0032] Figure 6 for Figure 5 A schematic diagram of the spiral panel structure at another angle;

[0033] Figure 7 This is a schematic diagram of the tooling structure for machining the stirring shaft in a specific embodiment;

[0034] Figure 8 for Figure 7 Side view;

[0035] Figure 9 This is a schematic diagram of the card slot structure in a specific embodiment;

[0036] Figure 10 This is a schematic diagram illustrating the usage state of the calibration folding ruler in a specific embodiment;

[0037] Figure 11 This is a schematic diagram of the blade welding fixture structure in a specific embodiment;

[0038] Figure 12 This is a top view schematic diagram of the blade welding fixture in a specific embodiment;

[0039] Figure 13 This is a top view of the pressure plate in a specific embodiment.

[0040] In the diagram: 10, stirring shaft; 20, spiral stirring blades; 30, stirring arm; 40, weld seam;

[0041] 1. Operating platform; 11. Slide rail;

[0042] 2. Card holder; 21. V-groove; 22. Fixing component one; 211. Wing protrusion; 212. V-groove opening; 213. Bottom protrusion one;

[0043] 3. Clamping mechanism; 31. Support; 32. Flat plate; 33. Fixing component two; 35. Pad; 311. Bottom protrusion two;

[0044] 5. Calibrate the folding ruler;

[0045] 101. Journal; 102. Plane;

[0046] 201. Spiral panel; 202. End plate one; 203. End plate two; 204. Guide hole; 205. Fixing hole;

[0047] 6. Welding platform; 61. Arc-shaped line; 7. Slope 1; 71. Stop bar 1; 72. Threaded hole 1; 8. Square platform; 81. Stop bar 2; 82. Guide rod; 83. Threaded hole 2; 9. Slope 2; 91. Stop bar 3;

[0048] 15. Pressure plate; 151. Slot. Detailed Implementation

[0049] The present invention will be further described below with reference to specific embodiments and accompanying drawings. It should be noted that, in this document, the terms "front," "rear," "upper," "lower," "left," and "right," etc., indicate relative positional directions. These terms and similar terms are only used to facilitate the description of embodiments and are not intended to limit the scope of protection of the present invention. In addition, in the various drawings, the same reference numerals indicate the same or corresponding parts; and, in some drawings, the labels of parts that have been clearly marked in other drawings are omitted.

[0050] Example 1

[0051] The horizontal three-dimensional stirring device in this embodiment, such as Figure 1 As shown, it includes a stirring shaft 10 that is fixed in a horizontal cylindrical body and a spiral stirring blade 20 that is fixedly connected to the stirring shaft 10 by a stirring arm 30. The journal 101 of the stirring shaft 10 is rotatably connected to the left and right walls of the horizontal cylindrical body by a bearing.

[0052] like Figure 2 , 3 As shown, the shaft of the stirring shaft 10 is a symmetrical plane 102 with a polygonal cross-section, which is hexagonal in this embodiment. The stirring arm 30 is vertically fixedly connected to the plane 102.

[0053] like Figure 4 , 5As shown in Figure 6, the spiral stirring blade 20 is formed by welding at least two spiral panels 201 together in a spiral shape, with the ends welded together. In this embodiment, there are two spiral panels 201. The spiral panel 201 includes an end plate 1 202 and an end plate 203 integrally connected to both ends of the spiral panel 201. The end plate 1 202 and the end plate 203 are respectively set as an arc-shaped horizontal surface and an arc-shaped inclined surface.

[0054] In this embodiment of the horizontal three-dimensional stirring device, the multi-layered spiral stirring blades 20 can be disassembled into multiple single-layer or even half-layer spiral panel 201 units. The design and production of single-layer or even half-layer spiral panel 201 units are much easier; only the consistency of the spiral parameters after connection needs to be addressed. After the single-layer or even half-layer spiral panel 201 is produced, it can be processed by simple hot forging to create two ends that are mutually curved horizontal surfaces and curved inclined surfaces. That is, when one end is a curved horizontal surface, the other end is a curved inclined surface. Compared to uneven curved surfaces, the ends of the horizontal and inclined surfaces are more... The device is easy to fix and weld, and after welding, it is also convenient to fix and connect to the stirring arm 30. The circumferential surface of the stirring shaft 10 is improved into a plane 102 that facilitates the vertical installation of the stirring arm 30. The spiral stirring blades 20, which are curved horizontal and curved inclined surfaces after connection, facilitate the welding connection of the spiral stirring blades 20 and cooperate with the square plane 102 of the stirring shaft 10 body. This improves the convenience and stability of the detachable and fixed connection of the spiral stirring blades 20 and the stirring shaft 10 by the stirring arm 30, avoids the redundancy, compensation design and precision deviation of the curved surface installation, and improves the installation accuracy. The entire device improves the consistency and parameter accuracy of the spiral stirring blades 20, and also effectively improves the stability of the stirring operation.

[0055] Example 2

[0056] The horizontal three-dimensional stirring device of this embodiment has the same basic structure as that of Embodiment 1. The difference or improvement is that when machining the symmetrical plane 102 of the stirring shaft 10, the stirring shaft 10 is clamped and fixed by a stirring shaft machining fixture to improve the stability and machining accuracy of the plane 102 of the stirring shaft 10 during machining; when welding the spiral stirring blades 20, the end plate 202 of one spiral panel 201 and the end plate 203 of another spiral panel 201 are welded and fixed by a blade welding fixture to improve the stability and machining accuracy of the spiral stirring blades 20 during welding.

[0057] like Figure 7 , 8As shown, the machining fixture for the stirring shaft includes an operating platform 1, clamping tables 2, and a clamping mechanism 3. The clamping tables 2 are horizontally fixed side-by-side on the operating platform 1, and the clamping mechanism 3 is configured to cooperate with each clamping table 2. The journals 101 at both ends of the stirring shaft 10 overlap the two clamping tables 2 respectively, and the clamping mechanism 3 clamps the journals 101 into the two clamping tables 2. Then, the shaft body of the stirring shaft to be machined is cut to form a square plane 102. The cooperation of the clamping tables and the clamping mechanism achieves the purpose of stably clamping and fixing the stirring shaft during the cutting process, thereby effectively improving the machining accuracy of the square plane 102.

[0058] like Figure 11 As shown, the blade welding fixture includes a welding platform 6 and slope platform 2 9, square platform 8 and slope platform 1 7, which are distributed in an arc shape 61 from left to right and fixed on the welding platform 6. The end plates 1 202 and 203 of the two spiral panels 201 can be adapted and fixed respectively, which facilitates the consistent operation of the welding process. The height of slope platform 2 9, square platform 8 and slope platform 1 7 decreases in a stepwise manner, which can also be called sequential decrease. The decrease distance is consistent with the spiral lead in the spiral parameters, so as to maintain its processing accuracy during welding.

[0059] To further ensure the consistency of the spiral stirring blades 20 after welding, the slopes of the second slope 9 and the first slope 7 are adapted to the spiral angle of the spiral panel 201; the curvature of the arc line 61 is adapted to the upper projection curvature of the spiral panel 201 and is consistent with the spiral outer diameter in the spiral parameters.

[0060] like Figure 7 , 8 As shown, a slide groove 11 is provided on the operating platform 1 along the axial direction of the stirring shaft 10. Generally, there are multiple slide grooves 11 arranged in parallel. The clamping table 2 and the pressing mechanism 3 are both fixedly connected to the slide groove 11 through fasteners. The tooling position can be adjusted through the slide groove 11, making operation easier.

[0061] like Figure 9 As shown, the mounting plate 2 includes a V-shaped groove 21, with wing protrusions 211 extending from the bottom of the V-shaped groove 21 to both sides for easy fixing, and an open V-shaped groove opening 212 at the top for easy insertion of the journals 101 at both ends of the stirring shaft 10; the wing protrusions 211 are fixedly connected to the slide groove 11 by fasteners, which can be detachable connectors such as screws or snap-fit ​​connectors for easy disassembly, relocation, and position adjustment.

[0062] The clamping mechanism 3 includes a support 31 and a plate 32. The two ends of the plate 32 are respectively connected to the support 31 and the journal 101, and then fixedly connected to the slide groove 11 by fasteners. The fasteners can be detachable connectors such as screws or snaps, which facilitate disassembly, relocation, and position adjustment.

[0063] like Figure 8As shown, the fasteners are preferably nuts and T-bolts that fit together, the corresponding groove 11 is a T-groove, and the corresponding plate 32 and wing protrusion 211 are provided with fixing holes for the T-bolts to pass through, which makes disassembly and assembly convenient and fastening effect good; a pad 35 is also provided between the support 31 and the plate 32 to adjust the balance of the two ends of the corresponding plate 32 according to the diameter of the journal.

[0064] Slope 2 9, square platform 8, and slope 1 7 are equipped with stop bars, bolt holes, and / or guide rods 82, which are adapted to the guide holes 204 and / or fixing holes 205 vertically drilled on end plate 1 202 and end plate 2 203. That is, both end plate 1 202 and end plate 2 203 can have guide holes 204 and fixing holes 205 vertically drilled, or one end plate can have guide holes 204 and fixing holes 205 drilled, or one end plate can have guide holes 204 and the other end plate can have fixing holes 205 drilled, with bolt holes, fixing holes, and guide rods provided as needed. The rod 82 and guide hole 204 are used together. The fixing hole 205 has threads. The screw hole and the fixing hole are screwed together by bolts, which facilitates stability during welding, ensures the consistency of the welded product, and facilitates the detachable connection of other parts after welding, such as connecting wear-resistant parts through the fixing hole 205. During welding, the end plate 202 of one spiral panel 201 and the end plate 203 of another spiral panel 201 can be laid side by side on the welding platform 6 and then welded and fixed. The operation is simple, no computer simulation compensation is required, and the welding cost is low and the precision is high.

[0065] Before welding, the multi-layered spiral stirring blades 20 can be disassembled into multiple single-layer, half-layer, or even one-third-layer spiral panel 201 units. Here, the layer can be understood as the spiral lead. Single-layer or half-layer spiral panel 201 units are much easier to design or produce. The smaller the unit, the smaller the torsional deformation of the spiral, and the easier the design and production. Only the consistency of the spiral parameters after connection needs to be solved. After the single-layer or even half-layer spiral panel 201 is produced, it can be processed into two ends with arc-shaped horizontal surfaces and arc-shaped inclined surfaces through simple hot forging. That is, when one end is an arc-shaped horizontal surface, the other end is an arc-shaped inclined surface. During welding, the end plate 202 of one spiral panel 201 and the end plate 203 of another spiral panel 201 can be laid side by side on the welding platform 6 and then welded and fixed. The operation is simple, no computer simulation compensation is required, the welding cost is low, and the precision is high.

[0066] The processing method of the horizontal three-dimensional stirring device in this embodiment includes the following steps:

[0067] S1: After the journals 101 at both ends of the stirring shaft 10 to be processed are respectively attached to the two clamping tables 2, the journals 101 are pressed into the two clamping tables 2 by the clamping mechanism 3, and the shaft body of the stirring shaft 10 to be processed is cut by the cutting machine tool to produce a square plane 102; the shaft body of the stirring shaft 10 is flipped over, and other planes 102 are processed in sequence.

[0068] S2: Fix the end plate 203 of one spiral panel 201 to the slope of the first slope platform 7, and fix the end plate 202 of the other spiral panel 201 to the slope of the second slope platform 9. The end plates 202 and 203 at the other end of the two spiral panels 201 are laid side by side on the square platform 8, with a weld gap 40 reserved in the middle. Weld the two spiral panels 201 together along the weld gap 40 to form a spiral stirring blade 20.

[0069] S3: Vertically fix the stirring arm 30 to the plane 102 of the stirring shaft 10, and then fix the spiral stirring blade 20 to the stirring arm 30 in a spiral shape.

[0070] The entire clamping and welding process is simple to operate and highly practical. It is suitable for both manual welding and welding robots to weld along the designed welding route, making it easy to promote.

[0071] Example 3

[0072] The horizontal three-dimensional stirring device in this embodiment has the same basic structure as in embodiment 2, with the following differences or improvements: Figure 13 As shown, the welding fixture also includes a pressure plate 15, which can press the end plate 202 of one spiral panel 201 and the end plate 203 of the other spiral panel 201 onto the square platform 8, preventing displacement of the spiral panels 201 during welding and affecting the welding quality. The end of the pressure plate 15 has a pre-drilled slot 151 for easy coordination with the fixing hole 205 to maintain stability during welding. The guide hole 204 is an oblong hole for easy fine-tuning of the fixing position.

[0073] like Figure 10 As shown, the machining fixture for the stirring shaft also includes a calibration ruler 5, which facilitates the measurement of the cutting accuracy of the plane 102.

[0074] The welding method for the spiral stirring blades in the horizontal three-dimensional stirring device of this embodiment includes the following steps:

[0075] Step 1: Lay the end plate 202 of one spiral panel 201 and the end plate 203 of another spiral panel 201 horizontally side by side on the square platform 8. When laying them, make sure that the outer sides of the end plate 202 and the end plate 203 are pressed against the two vertically fixed stop bars 81 on the surface of the square platform 8. The threaded guide rod 82, which is vertically fixed on the surface of the square platform 8, passes through the guide hole 204 of the left spiral panel 201. After aligning the fixing hole 205 of the right spiral panel 201 with the pre-reserved screw hole 83 on the surface of the square platform 8, insert the bolt. Leave a weld gap 40 between the end plate 202 and the end plate 203. Then press the pressure plate 15 horizontally on the weld gap 40. When pressing, the threaded guide rod 82 and the bolt are arranged in the slots 151 on the left and right sides of the pressure plate 15. Then tighten the pressure plate 15 with the nut.

[0076] Step 2: Fix the end plate 203 of one spiral panel 201 to the slope of the first slope 7, and fix the end plate 202 of the other spiral panel 201 to the slope of the second slope 9. When fixing, the outer side of each spiral panel 201 should be pressed against the stop bar on each slope, namely the first stop bar 71 and the third stop bar 91. Then, after aligning with the corresponding fixing holes 205 and screw holes 72, tighten with bolts.

[0077] Step 3: First, weld the gaps of weld seams 40 on both the front and rear sides of the pressure plate 15, then remove the pressure plate 15, and then weld the gaps left after removing the pressure plate 15. After welding the two spiral panels 201 together along the gaps of weld seams 40, the gaps of weld seams 40 reserved in the middle will form weld seam 40.

[0078] Step 4: After removing the bolts that fix each plate, two spiral panels 201 are welded together to form spiral stirring blades 20.

[0079] Step 5: Repeat the above steps to weld multiple pairs of spiral panels 201 connected to spiral stirring blades 20.

[0080] In this embodiment, the machining method of the stirring shaft 10 in the horizontal three-dimensional stirring device involves the bottom of the V-groove 21 of the stirring shaft machining fixture and the support 31 both extending downwards with bottom protrusions, namely bottom protrusion one 213 and bottom protrusion two 311, which are slidably connected to the parallel sliding grooves 11 through bottom protrusion one 213 and bottom protrusion two 311, respectively, allowing for sliding movement within the grooves, thus saving effort during operation. The opening angle of the V-groove 212 is preferably 90°, which is applicable to the machining of stirring shafts 10 of various specifications. The machining steps are as follows:

[0081] S1: After the journals 101 at both ends of the stirring shaft 10 to be processed are respectively attached to the two clamping tables 2, the journals 101 are pressed into the two clamping tables 2 by the clamping mechanism 3, and the shaft body of the stirring shaft 10 to be processed is cut by the cutting machine tool to create a square plane 102.

[0082] S2: Flip the entire shaft and machine the symmetrical other side. After machining the other side, flip it 60° and machine the third side, and so on, until the desired result is achieved. Figure 2 , 3 As shown, the stirring shaft 10 has a hexagonal cross-section. During the processing, such as... Figure 10 As shown, a calibration ruler 5 with an opening angle of α = 120° can be placed on the operating platform 1, with the back of the ruler pressed against the square machining surface 102. If there is a gap between the back of the ruler and the machining surface 102, it indicates insufficient accuracy. The machining surface 102 can be re-cut by flipping the shaft until there is no gap. Through the coordinated cooperation of the V-groove 21, the support 31, and the plate 32, the stirring shaft to be processed is stably clamped. Through the cooperation of the T-groove and T-bolt, the entire fixture is stably fixed on the operating platform 1. Then, the shaft is smoothly cut by the machine tool, which improves the machining accuracy of the square plane 102.

[0083] Example 4

[0084] The horizontal three-dimensional stirring device and its welding fixture in this embodiment have the same basic structure as in embodiment 3, but differ or are improved in that: Figure 12 As shown, the welding fixtures are arranged symmetrically in four groups on the welding platform 6, which can simultaneously weld and connect four pairs of spiral panels 201, and then connect them together after welding. Figure 4 The spiral shape shown improves the welding efficiency of the spiral stirring blades 20.

[0085] The examples of this invention are merely descriptions of preferred embodiments of the invention and are not intended to limit the concept and scope of the invention. Various modifications and improvements made by those skilled in the art to the technical solutions of this invention without departing from the design concept of this invention should fall within the protection scope of this invention.

Claims

1. A horizontal three-dimensional stirring device, comprising a stirring shaft (10) fixedly and laterally in a horizontal cylindrical body, and spiral stirring blades (20) fixedly connected to the stirring shaft (10) via stirring arms (30), characterized in that, The shaft of the stirring shaft (10) is a symmetrical plane (102) with a polygonal cross-section, and the stirring arm (30) is vertically fixed to the plane (102); The spiral stirring blade (20) is formed by welding at least two spiral panels (201) together in a spiral shape. The spiral panel (201) includes an end plate one (202) and an end plate two (203) integrally connected to both ends of the spiral panel (201). The end plate one (202) and the end plate two (203) are respectively set as an arc-shaped horizontal surface and an arc-shaped inclined surface.

2. The horizontal three-dimensional stirring device according to claim 1, characterized in that, When machining a symmetrical plane (102) on the shaft body of the stirring shaft (10), the stirring shaft (10) is clamped and fixed by a stirring shaft machining fixture; When the spiral stirring blades (20) are welded together, the end plate one (202) of one spiral panel (201) and the end plate two (203) of another spiral panel (201) are welded and fixed by the blade welding fixture.

3. The horizontal three-dimensional stirring device according to claim 2, characterized in that, The blade welding fixture includes a welding platform (6) and slope platform 2 (9), square platform (8) and slope platform 1 (7) arranged in an arc shape (61) from left to right and fixed on the welding platform (6). The machining fixture for the stirring shaft includes an operating platform (1), a clamping table (2), and a pressing mechanism (3); the clamping tables (2) are fixed horizontally side by side on the operating platform (1), and the pressing mechanism (3) is set in cooperation with the clamping tables (2); the journals (101) at both ends of the stirring shaft (10) are respectively attached to the two clamping tables (2), and the journals (101) are pressed into the two clamping tables (2) by the pressing mechanism (3).

4. The horizontal three-dimensional stirring device according to claim 3, characterized in that: The heights of the second slope (9), the square platform (8) and the first slope (7) decrease in sequence; A chute (11) is provided on the operating platform (1) along the axial direction of the stirring shaft (10); the clamping platform (2) and the pressing mechanism (3) are both fixedly connected to the chute (11) by fasteners.

5. The horizontal three-dimensional stirring device according to claim 4, characterized in that: The slopes of the second slope (9) and the first slope (7) are adapted to the helical angle of the spiral panel (201); The card holder (2) includes a V-shaped groove (21), with wing protrusions (211) extending from the bottom of the V-shaped groove (21) to both sides, and an open V-shaped groove opening (212) at the top; the wing protrusions (211) are fixedly connected to the slide groove (11) by a fastener.

6. The horizontal three-dimensional stirring device according to claim 5, characterized in that, The curvature of the arc line (61) is adapted to the upper projection curvature of the spiral panel (201); The pressing mechanism (3) includes a support (31) and a plate (32). The two ends of the plate (32) are connected to the support (31) and the journal (101) respectively, and then fixedly connected to the slide groove (11) by a fastener.

7. The horizontal three-dimensional stirring device according to claim 6, characterized in that, The second slope (9), the square platform (8) and the first slope (7) are provided with stop bars, screw holes and / or guide rods (82). A pad (35) is also provided between the support (31) and the flat plate (32).

8. The horizontal three-dimensional stirring device according to any one of claims 6 to 7, characterized in that, The stirring shaft processing fixture also includes a pressure plate (15), which presses the end plate one (202) of one spiral panel (201) and the end plate two (203) of another spiral panel (201) onto the square platform (8).

9. The horizontal three-dimensional stirring device according to claim 8, characterized in that, The end of the pressure plate (15) has a slot (151). The bottom of the V-groove (21) and the support (31) both extend downwards with a bottom protrusion, and are slidably connected to the slide groove (11) through the bottom protrusion.

10. A processing method for a horizontal three-dimensional stirring device according to any one of claims 3 to 9, characterized in that, The steps are as follows: After the journals (101) at both ends of the stirring shaft (10) to be processed are respectively attached to the two clamping tables (2), the journals (101) are pressed into the two clamping tables (2) by the clamping mechanism (3), and the shaft body of the stirring shaft (10) to be processed is cut by the cutting machine tool to create a square plane (102); the shaft body of the stirring shaft (10) is flipped over, and other planes (102) are processed in sequence. The end plate 2 (203) of one spiral panel (201) is fixed on the slope of the first slope platform (7), and the end plate 1 (202) of the other spiral panel (201) is fixed on the slope of the second slope platform (9). The end plates 1 (202) and 2 (203) of the other end of the two spiral panels (201) are laid side by side on the square platform (8), with a weld gap (40) reserved in the middle. The two spiral panels (201) are welded together along the weld gap (40) to form a spiral stirring blade (20). The stirring arm (30) is vertically fixed to the plane (102) of the stirring shaft (10), and the spiral stirring blade (20) is fixed to the stirring arm (30) in a spiral shape.

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