Positioning device in rotary heating furnace

Abstract

The utility model belongs to the technical field of heating part positioning equipment, and particularly discloses a positioning device in a rotary heating furnace, which comprises a positioning device body, a positioning pin and a limiting clamping groove, the plurality of positioning pins are arranged at the bottom end of the positioning device body and are matched with positioning pin holes corresponding to the upper end of a furnace bottom plate in the rotary heating furnace; the limiting clamping groove is formed in the upper end of the positioning device body; in the using process, the positioning device body can be stably arranged on the upper surface of the furnace bottom plate through the positioning pins and the positioning pin holes corresponding to the upper end of the furnace bottom plate. And secondly, due to the design that the limiting clamping groove is formed in the upper end of the positioning device body, the limiting clamping groove can be conveniently machined or remachined according to the type of the workpiece to be machined and the machining posture, meanwhile, the positioning device is suitable for taking and placing materials through an industrial robot, and therefore the automation level is improved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heating part positioning equipment technical field, more specifically, it relates to a kind of positioning device in rotary heating furnace. BACKGROUND

[0002] Rotary heating furnace is a kind of industrial equipment widely used in metal, glass, ceramic and other industries, its main function is to heat, sinter, anneal and other key process treatment to materials. Its unique rotation mechanism makes the workpiece placed inside can be uniformly heated, so as to ensure the consistency of temperature distribution and the stability of product quality in the processing process. In the hot working operation of rotary heating furnace, accurate positioning of workpiece is crucial.

[0003] In order to achieve this goal, usually equipped with specially designed positioning device. The main role of these positioning devices is to accurately and accurately operate when workpiece enters and exits heating furnace, to avoid uneven heating, deformation or quality problems caused by position deviation. They also need to closely cooperate with the rotation mechanism in the furnace, to ensure the accurate control of the rotation trajectory and speed of workpiece in the heating process, so that each part of workpiece is uniformly heated. In the prior art, the Chinese patent application with document number CN219099261U discloses a stable heating furnace for bearing machining, which comprises a heating furnace, the inner surface of the heating furnace is provided with a bearing positioning and placing device, the bearing positioning and placing device is driven by a driving rotation device, the bearing positioning and placing device comprises an angle plate, a universal ball and a positioning rod. By setting the bearing positioning and placing device, multiple groups of bearing rings can be positioned and placed conveniently, and can be driven rotationally. The bearing rings can be uniformly heated and stabilized during heat treatment.

[0004] Although the positioning device of the above-mentioned patent can rotate the bearing in the heating furnace through the bearing positioning and placing device to uniformly heat, it still cannot solve some problems existing in the positioning device in the existing rotary heating furnace, such as: (1) the positioning device has limited functions, only suitable for single type of workpiece, and the workpiece posture is fixed; (2) the design of the positioning device is not reasonable, which leads to only suitable for manual operation of workpiece in and out, resulting in low production efficiency. UTILITY MODEL CONTENTS

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a positioning device in rotary heating furnace, which is stably arranged on the upper surface of the furnace bottom plate through the positioning pin and the corresponding positioning pin hole on the upper end of the furnace bottom plate. Secondly, the design of the limiting clamping groove on the upper end of the positioning device body makes it convenient to process or reprocess the limiting clamping groove according to the type and processing posture of the workpiece to be processed. At the same time, it is suitable for industrial robot taking and placing material, so as to improve the automation level and improve the production efficiency.

[0006] In order to achieve the above object, the utility model provides a positioning device in rotary heating furnace, include: positioning device body, positioning pin and limit card slot, wherein:

[0007] A plurality of positioning pins are arranged at the bottom end of the positioning device body and correspond to the positioning pin holes on the upper end of the furnace bottom plate in the rotary heating furnace.

[0008] The limit card slot is arranged at the upper end of the positioning device body.

[0009] Further, the transverse axis of the positioning device body is collinear with the radial line of the center of the furnace bottom plate.

[0010] Further, the positioning device body is a rectangular block as a whole.

[0011] The right angle of the positioning device body is provided with a chamfer, which includes but is not limited to one or more of a rounded corner, an inclined corner, etc.

[0012] Further, the number of positioning pins is at least two, and when the number of positioning pins is two, the two positioning pins are arranged along the transverse axis of the positioning device body, or

[0013] symmetrically arranged along the transverse axis of the positioning device body.

[0014] Further, the limit card slot is at least one, and its shape includes but is not limited to one or more of a rectangle, a semicircle or a V shape.

[0015] Further, when the limit card slot is one, it is arranged along the transverse axis of the positioning device body.

[0016] Further, the positioning device body is a rectangular block; the two positioning pins are arranged along the transverse axis of the positioning device body, but not symmetrically arranged along the longitudinal axis of the positioning device body; the limit card slot is arranged along the transverse axis of the positioning device body and at the upper end of the positioning device body, and its shape is a V shape.

[0017] Further, the positioning device body is a rectangular block and the four vertical right angles are provided with inclined corners; the two positioning pins are arranged along the transverse axis of the positioning device body and symmetrically arranged along the longitudinal axis of the positioning device body; the limit card slot includes a first card slot and a second card slot; the first card slot and the second card slot are arranged along the transverse axis of the positioning device body and at the upper end of the positioning device body; the upper end of the first card slot is a V shape and the bottom end is a rectangle, and the height of the two sides along the transverse direction of the positioning device body is the same; the upper end of the second card slot is a V shape and the bottom end is a rectangle, and the height of the two sides along the transverse direction of the positioning device body is different.

[0018] Further, the positioning device body is a rectangular block; two positioning pins are arranged along the lateral axis of the positioning device body and symmetrically arranged along the longitudinal axis of the positioning device body; the limiting clamping groove comprises a third clamping groove and a fourth clamping groove; the third clamping groove is arranged at the upper end of the positioning device body along the lateral axis of the positioning device body and is in a rectangular shape; the fourth clamping groove is arranged along the longitudinal axis of the positioning device body and penetrates through the third clamping groove and is in a rectangular shape; the middle part of the fourth clamping groove is further provided with a protrusion, the upper surface of the protrusion is higher than the bottom surface of the third clamping groove and lower than the upper surface of the positioning device body, and is used for compatible short materials or placing products with front and back surface distinction to be flipped over.

[0019] Further, the inner side of the fourth clamping groove and the connection part with the protrusion are provided with a chamfer, which comprises one or more of a rounded chamfer, an inclined chamfer, etc.

[0020] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0021] (1) The positioning device of the utility model can stably arrange the positioning device body on the upper surface of the furnace bottom plate through the positioning pin and the corresponding positioning pin hole at the upper end of the furnace bottom plate; secondly, the design of arranging the limiting clamping groove at the upper end of the positioning device body makes it convenient to process or reprocess the limiting clamping groove according to the type and processing attitude of the workpiece to be processed, and at the same time, it is suitable for industrial robot material taking and placing, thereby improving the automation level and production efficiency.

[0022] (2) The positioning device of the utility model can better utilize space by arranging the positioning device body as a rectangular block, especially in limited installation environment, compact arrangement is provided; secondly, the manufacturing process of the rectangular structure is relatively simple, easy to process and assemble, thereby reducing production cost; in addition, the large surface area and good symmetry help to uniformly distribute heat, improve heating efficiency, and at the same time, it is convenient for cleaning and maintenance, reduces equipment downtime, and significantly improves the overall performance and efficiency of the equipment.

[0023] (3) The positioning device of the utility model can effectively prevent the positioning device from displacement or rotation under harsh conditions such as high temperature and vibration by fixing the positioning device to the furnace bottom plate through the positioning pin and using fastening force instead of friction force between the positioning device and the upper surface of the furnace bottom plate, thereby significantly enhancing the stability and reliability of the positioning device in the rotary heating furnace, avoiding slipping between the workpiece and the positioning device; in addition, the positioning pin can simplify the assembly and disassembly process and be suitable for automated operation, thereby further improving the convenience, precision and work efficiency of operation.

[0024] (4) The positioning device of the utility model, through setting the limiting card slot on the upper end of the positioning device body, the machining workpiece can be directly placed in the limiting card slot, without other additional operation, so as to be more suitable for robot material taking and placing, and the intelligent level is obviously improved; in addition, the design of the limiting card slot facilitates the machining of the positioning device body, so that the machining can be conveniently carried out according to the machining workpiece type and heating demand, the workpiece placement of various forms such as compatible round bar type blank and preforming piece with flash is realized, the high consistency of product posture is ensured, the automation production can be more adapted, and the machining efficiency is obviously improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the perspective view of the utility model embodiment 1;

[0026] Figure 2 It is the front view of the utility model embodiment 1;

[0027] Figure 3 It is the side view of the utility model embodiment 1;

[0028] Figure 4 It is the perspective view of the utility model embodiment 2;

[0029] Figure 5 It is the sectional view of the utility model embodiment 2;

[0030] Figure 6 It is the front view of the utility model embodiment 2;

[0031] Figure 7 It is the perspective view of the utility model embodiment 3;

[0032] Figure 8 It is the front view of the utility model embodiment 3;

[0033] Figure 9 It is the side view of the utility model embodiment 3;

[0034] Figure 10 It is the structural schematic diagram of the positioning device and furnace bottom plate assembly of the utility model embodiment 3.

[0035] In all drawings, same reference signs represent same technical features, specifically: 1-furnace bottom plate, 2-positioning device body, 3-positioning pin, 4-limiting card slot, 41-first card slot, 42-second card slot, 43-third card slot, 44-fourth card slot, 441-bump, 5-machining workpiece. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] As shown in Figures 1 to 10 The utility model discloses a positioning device in rotary heating furnace, including: positioning device body 2, positioning pin 3 and limit card slot 4, a plurality of positioning pin 3 is located in the bottom end of positioning device body 2 and is adapted with the positioning pin hole corresponding to the upper end of furnace bottom plate 1 in rotary heating furnace, limit card slot 4 is located in the upper end of positioning device body 2, in the use process, positioning device body 2 can be stably arranged on the upper surface of furnace bottom plate 1 through positioning pin 3 and the positioning pin hole corresponding to the upper end of furnace bottom plate 1, second, the design that limit card slot 4 is located in the upper end of positioning device body 2 makes convenient according to the processing of workpiece type and processing attitude and processes or reprocesses limit card slot 4, and simultaneously, it is suitable for industrial robot to take and place material, thereby improving the automation level and improving production efficiency.

[0038] Preferably, the furnace bottom plate 1 in rotary heating furnace is circular, and during the heating process of the workpiece, it can rotate at a constant speed with its center, and the rotation angular velocity is ≤6 ° / s. It can be understood that under the rotation angular velocity, the processing workpiece supported and positioned by the positioning device will not slip between the processing workpiece and the positioning device during the rotary heating process due to the friction force of the positioning device and the limiting effect of the positioning device, thereby avoiding the possible downtime, reducing the production interruption, and at the same time, the rotation speed also meets the high-temperature heating (1200C °) characteristic requirement, thereby ensuring uniform heating.

[0039] Specifically, as shown in Figures 1 to 10 The positioning device body 2 is a rectangular block as a whole, which is used to stably support the workpiece to be processed, so that it is uniformly heated in the rotary heating furnace. In the use process, by setting the positioning device body 2 as a rectangular block, the space can be better utilized, especially in a limited installation environment, a compact arrangement is provided; secondly, the manufacturing process of the rectangular structure is relatively simple, easy to process and assemble, thereby reducing the production cost; in addition, its large surface area and good symmetry help to uniformly distribute heat, improve heating efficiency, and also facilitate cleaning and maintenance, reduce equipment downtime, and significantly improve the overall performance and efficiency of the equipment.

[0040] Preferably, the transverse axis of the positioning device body 2 is collinear with the radial line of the furnace bottom plate 1 center, so as to better resist torsional and bending stress, further ensure that the workpiece does not slip with the positioning device, and at the same time, such a layout helps to achieve more uniform heat distribution. It should be noted that the long side direction of the rectangular block is transverse, and the short side direction is longitudinal, so the transverse axis of the positioning device body 2 is the long side direction axis, and at this time, a plurality of positioning device bodies 2 are arranged on the upper end of the furnace bottom plate 1 along the uniform circumference of the radial line of the furnace bottom plate 1 center, achieving a compact layout and uniform distribution of heating.

[0041] In an optional embodiment, a chamfer is provided at the right angle of the positioning device body 2, which includes but is not limited to one or more of a rounded chamfer, an inclined chamfer, and the like, so as to reduce stress concentration and facilitate later cleaning and maintenance.

[0042] Specifically, as shown in Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 , a plurality of positioning pins 3 are arranged at the bottom end of the positioning device body 2 and are adapted to the positioning pin holes corresponding to the upper end of the furnace bottom plate 1 in the rotary heating furnace, so as to stably connect the positioning device body 2 and the furnace bottom plate 1. During use, the positioning device 2 is fixed to the furnace bottom plate 1 by the positioning pins 3, and the use of fastening force instead of friction between the positioning device and the upper surface of the furnace bottom plate 1 can effectively prevent the positioning device from moving or rotating under harsh conditions such as high temperature and vibration, significantly enhancing the stability and reliability of the positioning device in the rotary heating furnace, and avoiding slipping between the workpiece and the positioning device; in addition, the positioning pins 3 can simplify the assembly and disassembly process and are suitable for operation by an industrial robot, thereby further improving the convenience and precision of operation and work efficiency.

[0043] Preferably, the number of positioning pins 3 is at least two, and when the positioning pins 3 are two, the two positioning pins are arranged along the transverse axis of the positioning device body 2 or symmetrically with respect to the transverse axis of the positioning device body 2, so as to improve the positioning accuracy and connection stability.

[0044] Specifically, as shown in Figure 1 , Figures 3 to 5 , Figures 7 to 10As shown, the limiting slot 4 is located on the upper end of the positioning device body 2 to ensure the stability of the workpiece during the heating process. In use, by placing the limiting slot 4 on the upper end of the positioning device body, the workpiece can be directly placed within the limiting slot 4 without additional operations, making it more suitable for robotic material handling and significantly improving the level of intelligence. Furthermore, the design of the limiting slot 4 facilitates the processing of the positioning device body 2, allowing for convenient processing according to the type of workpiece and heating requirements. It enables the placement of various workpiece shapes, including round bar billets and pre-forged parts with flash, ensuring high consistency in product posture, better adapting to automated production, and significantly improving processing efficiency.

[0045] Preferably, there is at least one limiting slot 4, and its shape includes, but is not limited to, one or more of rectangle, semicircle or V shape. When there is only one limiting slot 4, it is arranged along the transverse axis of the positioning device body 2 to ensure the stability of the workpiece placement.

[0046] It should be noted that in other embodiments, various shapes of combined limiting slots can also be used. No specific limitation is made here, but these solutions are all within the protection scope of this invention.

[0047] Specifically, the positioning device body 2 and the positioning pin 3 are mainly made of alumina ceramic material to replace materials such as silicon carbide and heat-resistant steel. This allows the alumina ceramic material to take advantage of its light weight, high temperature resistance, and fine surface, thus solving the problem of deformation and cracking of heat-resistant steel under long-term high temperature conditions. At the same time, it avoids the problem of defects caused by the rough surface of silicon carbide and the contamination of workpieces by scattered particles. In addition, it solves the problems of other tooling being large, heavy, and difficult to replace, thereby adapting to intelligent robot clamping operations, quickly realizing positioning and installation, and improving overall operation efficiency.

[0048] To further illustrate this utility model, the positioning device provided by this utility model will be described in detail below with reference to several embodiments, but it should not be construed as limiting the scope of protection of this utility model.

[0049] Example 1

[0050] like Figures 1 to 3 As shown, Embodiment 1 of this utility model provides a positioning device in a rotary heating furnace, including a positioning device body 2, positioning pins 3, and a limiting slot 4, wherein: the positioning device body 2 is a rectangular block; the two positioning pins 3 are arranged along the transverse axis of the positioning device body 2, but not symmetrically arranged with respect to the longitudinal axis of the positioning device body 2; the limiting slot 4 is arranged along the transverse axis of the positioning device body 2 and is located at the upper end of the positioning device body 2, and its shape is V-shaped.

[0051] Example 2

[0052] As Figures 3 to 6 shown, the utility model discloses a positioning device in rotary heating furnace, including positioning device body 2, positioning pin 3 and limit card slot 4, wherein: positioning device body 2 is rectangular block and is equipped with inverted bevel at four vertical right angle, two positioning pin 3 is along positioning device body 2 lateral axis arrangement, and is arranged with positioning device body 2 longitudinal axis symmetry, limit card slot 4 includes: first card slot 41 and second card slot 42, first card slot 41 with second card slot 42 are along positioning device body 2 lateral axis arrangement and are located on positioning device body 2 upper end, first card slot 41 upper end is V-shaped and bottom is rectangular, and its along positioning device body 2 lateral both sides height is same, second card slot 42 upper end is V-shaped and bottom is rectangular, and its along positioning device body 2 lateral both sides height is not same.

[0053] Example 3

[0054] As Figures 7 to 10 shown, the utility model discloses a positioning device in rotary heating furnace, including positioning device body 2, positioning pin 3 and limit card slot 4, wherein: positioning device body 2 is rectangular block, two positioning pin 3 is along positioning device body 2 lateral axis arrangement, and is arranged with positioning device body 2 longitudinal axis symmetry, limit card slot 4 includes: third card slot 43 and fourth card slot 44, third card slot 43 is along positioning device body 2 lateral axis arrangement and is located on positioning device body 2 upper end, and its shape is rectangular, fourth card slot 44 is along positioning device body 2 longitudinal axis arrangement and passes through third card slot 43, and its shape is rectangular, fourth card slot 44 middle part is further equipped with lug 441, and the lug upper surface height is higher than third card slot 43 bottom height and is lower than positioning device body 2 upper surface height, to be compatible with short material or place product overturning that has positive and negative face distinction.

[0055] Preferably, the fourth card slot 44 inside and the connecting place with the lug 441 are provided with a chamfer, which includes but is not limited to one or more of a rounded chamfer, an inclined chamfer.

[0056] The working principle of the utility model is as follows: according to the type of the workpiece to be processed and the heating posture, select the appropriate positioning device, in the rotating process of the furnace bottom plate 1, the industrial robot sequentially assembles and disassembles the positioning device through the positioning pin 3, then, when the number of positioning devices meets the number of workpieces to be processed, the positioning devices can be stopped and placed, and the industrial robot is used to grab the workpieces to be processed and accurately put them into the limit card slot 4, after the workpieces to be processed are placed, the rotary heating furnace cover can be closed for heat treatment of the workpieces.

[0057] It should be noted that if the embodiments of the utility model have directionality indication (such as up, down, left, right, front, back, etc.), the directionality indication is only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), if the specific posture changes, the directionality indication also changes accordingly.

[0058] In addition, if the embodiments of the utility model have the description of "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0059] In this patent, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the elements defined by the sentence "include" do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; those skilled in the art can easily understand that the above description is only the preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A positioning device within a rotary heating furnace, characterized in that, The positioning device comprises a positioning device body (2), positioning pins (3), and a limiting slot (4), wherein: A plurality of positioning pins (3) are arranged at the bottom end of the positioning device body (2) and correspond to the positioning pin holes on the upper end of the furnace bottom plate (1) in the rotary heating furnace; The limiting slot (4) is arranged at the upper end of the positioning device body (2). The transverse axis of the positioning device body (2) is collinear with the radial line of the center of the furnace bottom plate (1).

2. The positioning device of claim 1, wherein, The positioning device body (2) is a rectangular block.

3. The positioning device of claim 2, wherein, The right-angled corners of the positioning device body (2) are provided with chamfers, which include but are not limited to one or more of rounded corners, bevel corners, etc. The number of the positioning pins (3) is at least two, and when the number of the positioning pins (3) is two, the two positioning pins are arranged along the transverse axis of the positioning device body (2), or 4. The positioning device of claim 2, wherein, The positioning device body (2) is symmetrically arranged along the transverse axis. The limiting slot (4) is at least one, and its shape includes but is not limited to one or more of a rectangle, a semicircle, or a V shape.

5. The positioning device of claim 4, wherein, When the limiting slot (4) is one, it is arranged along the transverse axis of the positioning device body (2).

6. The positioning device of claim 5, wherein, The positioning device body (2) is a rectangular block; two positioning pins (3) are arranged along the transverse axis of the positioning device body (2) but are not symmetrically arranged along the longitudinal axis of the positioning device body (2); and the limiting slot (4) is arranged along the transverse axis of the positioning device body (2) and at the upper end of the positioning device body (2), and its shape is a V shape.

7. The positioning device of claim 6, wherein, The positioning device body (2) is a rectangular block and is provided with bevel corners at four vertical right-angled corners; two positioning pins (3) are arranged along the transverse axis of the positioning device body (2) and are symmetrically arranged along the longitudinal axis of the positioning device body (2); the limiting slot (4) comprises a first slot (41) and a second slot (42); the first slot (41) and the second slot (42) are both arranged along the transverse axis of the positioning device body (2) and are arranged at the upper end of the positioning device body (2); the upper end of the first slot (41) is a V shape and the bottom end is a rectangle, and the heights of the two sides in the transverse direction of the positioning device body (2) are the same; the upper end of the second slot (42) is a V shape and the bottom end is a rectangle, and the heights of the two sides in the transverse direction of the positioning device body (2) are different.

8. The positioning device of claim 6, wherein, ​ 9. The positioning device of claim 6, wherein, The positioning device body (2) is a rectangular block; two positioning pins (3) are arranged along the lateral axis of the positioning device body (2) and symmetrically arranged along the longitudinal axis of the positioning device body (2); the limiting clamping groove (4) comprises a third clamping groove (43) and a fourth clamping groove (44); the third clamping groove (43) is arranged along the lateral axis of the positioning device body (2) and is located at the upper end of the positioning device body (2), and is in the shape of a rectangle; the fourth clamping groove (44) is arranged along the longitudinal axis of the positioning device body (2) and passes through the third clamping groove (43), and is in the shape of a rectangle; the middle part of the fourth clamping groove (44) is further provided with a protrusion (441), and the upper surface height of the protrusion is higher than the bottom surface height of the third clamping groove (43) and lower than the upper surface height of the positioning device body (2), so as to be compatible with short materials or to place products with front and back surface distinction for overturning.

10. The positioning device of claim 9, wherein, The inner side of the fourth clamping groove (44) and the connection with the protrusion (441) are provided with a chamfer, which includes but is not limited to one or more of a rounded chamfer, an inclined chamfer, etc.

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