Clamping device and automatic blow-in machine
By adopting a wedge design for the clamping device in the automatic furnace starter, the operational difficulties caused by bolt connections are solved, enabling rapid replacement and stable clamping of carbon rods, thus improving operational efficiency and safety.
Patent Information
- Application Number
- CN202520115990.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The existing automatic furnace starter uses a carbon rod clamping mechanism connected by bolts. High-temperature molten metal splashes cause the thread gaps to fill, deform, and rust, increasing the difficulty of operation and time costs.
The device employs a clamping mechanism, including a first clamping element, a second clamping element, and a wedge. The inclined design of the wedge ensures a firm grip on the carbon rod. The inclined angle and snap-fit structure of the wedge ensure that the carbon rod is not easily moved. During disassembly, the carbon rod can be replaced simply by tapping the wedge to loosen it.
It simplifies the carbon rod replacement process, reduces operational complexity and time costs, improves clamping stability and convenience, and reduces the risk of accidents.
Smart Images
Figure CN223826791U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to clamping device technical field, especially in clamping device and automatic open furnace machine. BACKGROUND
[0002] The submerged arc furnace plays a vital role in the industrial silicon smelting, and the opening of the furnace eye is a key link. In the past technology, the carbon rod clamping mechanism of the automatic open furnace machine, the upper clamping head and the lower clamping head of the carbon rod clamping mechanism are connected by bolts.
[0003] However, this connection mode in the process of opening the furnace, the high-temperature metal liquid will splash and adhere to the thread of the bolt. With the passage of time, these metal attachments will gradually accumulate, solidify, so that the gap between the threads is filled, and even deformation and corrosion occur. This directly leads to the difficulty of screwing the bolt when it needs to be disassembled, greatly increasing the work difficulty and time cost of the operator.
[0004] Therefore, it is necessary to provide a new clamping device and automatic open furnace machine to solve the above technical problems. SUMMARY
[0005] The main purpose of the utility model is to provide a clamping device and automatic open furnace machine, aiming at improving the technical problem of difficult operation of the clamping device in the prior art.
[0006] To achieve the above purpose, according to one aspect of the utility model, the clamping device provided by the utility model comprises:
[0007] The first clamping piece comprises a bottom plate and two side plates, the two side plates are respectively connected with the two sides of the bottom plate, the top of the bottom plate is formed with a first circular arc groove extending along the length direction of the bottom plate, the two side plates are respectively formed with a first clamping hole and a second clamping hole, and the first circular arc groove is used for clamping the bottom of the workpiece to be clamped.
[0008] The second clamping piece is formed with a second circular arc groove, the radius of the cross section of the second circular arc groove is equal to the radius of the cross section of the first circular arc groove, and the second circular arc groove is used for clamping the top of the workpiece to be clamped.
[0009] The wedge is inclinedly arranged at the top along the length direction of the wedge, one end of the wedge is clamped in the second clamping hole through the first clamping hole, the other end of the wedge is clamped in the first clamping hole, and the bottom of the wedge abuts against the second clamping piece.
[0010] In an embodiment, the first clamping member further comprises a vertical plate, a bottom of the vertical plate is connected with the bottom plate, two sides of the vertical plate are connected with the two side plates respectively, the vertical plate is formed with a through hole, the through hole is coaxially arranged with the first circular arc groove, and a radius of a cross section of the first circular arc groove is greater than or equal to a radius of the through hole.
[0011] In an embodiment, a length of the first circular arc groove is equal to a length of the bottom plate.
[0012] In an embodiment, a side of the first circular arc groove away from the vertical plate is provided with a first chamfer.
[0013] In an embodiment, a length of the second circular arc groove is equal to a length of the second clamping member.
[0014] In an embodiment, two ends of the second circular arc groove are provided with second chamfers.
[0015] In an embodiment, the wedge block comprises a first clamping block and a second clamping block, the first clamping block is installed on a top of the second clamping block, a width of the first clamping block is less than a width of the second clamping block, the first clamping block is arranged in an inclined manner along the length direction, the first clamping hole comprises a first clamping sub-hole and a second clamping sub-hole which are in communication with each other, the second clamping hole comprises a third clamping sub-hole and a fourth clamping sub-hole which are in communication with each other, the first clamping sub-hole and the third clamping sub-hole are located on the same horizontal line, two ends of the second clamping block are clamped in the first clamping sub-hole and the third clamping sub-hole respectively, the second clamping sub-hole is arranged on the top of the first clamping sub-hole, the fourth clamping sub-hole is arranged on the top of the third clamping sub-hole, a height of the second clamping sub-hole is greater than a height of the fourth clamping sub-hole, one end of the first clamping block is clamped in the fourth clamping sub-hole through the second clamping sub-hole, and the other end of the wedge block is clamped in the second clamping sub-hole.
[0016] In an embodiment, a spacing between the two side plates is equal to a width of the second clamping member, and a length of the second clamping member is equal to a length of the bottom plate.
[0017] In an embodiment, a length of the first circular arc groove is equal to a length of the second circular arc groove.
[0018] According to another aspect of the utility model, the utility model also provides an automatic furnace opening machine, including the cannon head and above -mentioned clamping device, the clamping device is welded in the cannon head.
[0019] In the above scheme, the clamping device includes a first clamping member, a second clamping member, and a wedge. The first clamping member includes a base plate and two side plates, which are respectively connected to the two sides of the base plate. The top of the base plate has a first arc groove extending along the length direction of the base plate. The two side plates have a first snap-fit hole and a second snap-fit hole, respectively. The first arc groove is used to snap with the bottom of the workpiece to be clamped. The second clamping member has a second arc groove, the radius of the cross section of the second arc groove is equal to the radius of the cross section of the first arc groove, and the second arc groove is used to snap with the top of the workpiece to be clamped. The top of the wedge is inclined along the length direction of the wedge. One end of the wedge passes through the first snap-fit hole and snaps with the second snap-fit hole, and the other end of the wedge snaps with the first snap-fit hole. The bottom of the wedge abuts against the second clamping member. Specifically, before using the clamping device, the first clamping component of the clamping device needs to be welded to the gun head of the automatic furnace opener, so that the first arc groove on the bottom plate of the first clamping component is concentric with the inner hole of the gun head. In this way, the workpiece to be clamped, i.e. the carbon rod, can be inserted into the inner hole of the gun head and inserted into the furnace hole of the electric arc furnace, thereby blocking and opening the furnace hole. In actual operation, the carbon rod is clamped into the first arc groove of the base plate and inserted into the inner hole of the blasting head to block the furnace eye. Then, the second clamping member is aligned with the carbon rod, so that the second arc groove on the second clamping member is clamped into the top of the carbon rod. Since the wedge is set at an angle, when the wedge is placed horizontally, the height of one end of the wedge will gradually decrease. The height of the first clamping hole matches the higher end of the wedge, and the height of the second clamping hole matches the lower end of the wedge. The operator inserts the lower end of the wedge through the first clamping hole toward the second clamping hole, so that the lower end of the wedge is clamped in the first clamping hole. At this time, the higher end of the wedge will be clamped in the second clamping hole, and the bottom of the wedge will abut against the bottom of the second clamping member, so that the second clamping member cannot move or shake. In this way, the first clamping member and the second clamping member cooperate to clamp the carbon rod tightly, preventing it from falling or moving, thus firmly holding the carbon rod. When it's time to replace the carbon rod, simply use a tapping tool, including but not limited to a hammer, to tap the wedge in the opposite direction to loosen it. This allows the wedge to be removed from the first and second locking holes, enabling the operator to remove the second clamping piece from under the carbon rod. The carbon rod can then be removed from the first clamping piece, thus completing the replacement. The entire operation is simple and quick, requiring no complicated tools or cumbersome steps. Attached Figure Description
[0020] 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0021] Figure 1 A schematic diagram of an embodiment of the clamping device provided by this utility model;
[0022] Figure 2 A schematic diagram of the structure of another embodiment of the clamping device provided by this utility model;
[0023] Figure 3 A schematic diagram of a first clamping member according to an embodiment of the present invention;
[0024] Figure 4 A schematic diagram of an embodiment of the second clamping member provided by this utility model.
[0025] Explanation of icon numbers:
[0026] 100. Clamping device; 1. First clamping member; 11. Base plate; 111. First arc groove; 111a. First chamfer; 12. Side plate; 121. First snap-fit hole; 121a. First snap-fit sub-hole; 121b. Second snap-fit sub-hole; 122. Second snap-fit hole; 122a. Third snap-fit sub-hole; 122b. Fourth snap-fit sub-hole; 13. Vertical plate; 131. Through hole; 2. Second clamping member; 21. Second arc groove; 211. Second chamfer; 3. Wedge block; 31. First snap-fit block; 32. Second snap-fit block.
[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0031] Please see Figures 1 to 4According to one aspect of the utility model, the present utility model proposes a clamping device 100, including a first clamping member 1, a second clamping member 2, and a wedge block 3. The first clamping member 1 includes a base plate 11 and two side plates 12, which are respectively connected to the two sides of the base plate 11. A first arcuate groove 111 extending along the length direction of the base plate 11 is formed on the top of the base plate 11. The two side plates 12 are respectively formed with a first snap-fit hole 121 and a second snap-fit hole 122. The first arcuate groove 111 is used to clamp the part to be clamped. The bottom of the workpiece is engaged, and the second clamping member 2 has a second arc groove 21. The radius of the cross-section of the second arc groove 21 is equal to the radius of the cross-section of the first arc groove 111. The second arc groove 21 is used to engage with the top of the workpiece to be clamped. The top of the wedge 3 is inclined along the length of the wedge 3. One end of the wedge 3 passes through the first engagement hole 121 and engages with the second engagement hole 122. The other end of the wedge 3 engages with the first engagement hole 121. The bottom of the wedge 3 abuts against the second clamping member 2. Specifically, before using the clamping device 100, the first clamping member 1 of the clamping device 100 needs to be welded to the gun head of the automatic furnace starter, so that the first arc groove 111 on the bottom plate 11 of the first clamping member 1 is concentric with the inner hole of the gun head. In this way, the workpiece to be clamped, i.e., the carbon rod, can be inserted into the inner hole of the gun head and inserted into the furnace hole of the electric arc furnace, realizing the blocking and opening of the furnace hole. In actual operation, the carbon rod is clamped into the first arc groove 111 of the base plate 11, and then inserted into the inner hole of the gun head to block the furnace eye. Next, the second clamping member 2 is aligned with the carbon rod, so that the second arc groove 21 on the second clamping member 2 clamps onto the top of the carbon rod. Since the wedge 3 is inclined, when the wedge 3 is placed horizontally, the height of one end of the wedge 3 gradually decreases. The height of the first clamping hole 121 matches the higher end of the wedge 3, and the height of the second clamping hole 122 matches the lower end of the wedge 3. The operator inserts the lower end of the wedge 3 through the first locking hole 121 towards the second locking hole 122, so that the lower end of the wedge 3 engages in the first locking hole 121, while the higher end engages in the second locking hole 122. The bottom of the wedge 3 then abuts against the bottom of the second clamping member 2, preventing the second clamping member 2 from moving or wobbling. In this way, the first clamping member 1 and the second clamping member 2 work together to firmly clamp the carbon rod, preventing it from falling or moving. When the carbon rod needs to be replaced, simply use a striking tool, including but not limited to a hammer, to strike the wedge 3 in the opposite direction to loosen it. This allows the wedge 3 to be removed from the first locking hole 121 and the second locking hole 122. The operator can then remove the second clamping member 2 from under the carbon rod, and the carbon rod can then be removed from the first clamping member 1, thus completing the carbon rod replacement. The entire operation is simple and quick, requiring no complicated tools or cumbersome steps.
[0032] Please see Figure 1 andFigure 2 In one embodiment, the first clamping member 1 further includes a vertical plate 13. The bottom of the vertical plate 13 is connected to the bottom plate 11, and the two sides of the vertical plate 13 are respectively connected to two side plates 12. The vertical plate 13 has a through hole 131, which is coaxially arranged with the first arc groove 111, and the radius of the cross-section of the first arc groove 111 is greater than or equal to the radius of the through hole 131. By setting the vertical plate 13 and machining a through hole 131 with a radius greater than or equal to the radius of the cross-section of the first arc groove 111, the carbon rod is clamped in the first arc groove 111, and the carbon rod passes through the through hole 131 and extends into the gun head to block the furnace eye. Thus, when welding the first clamping member 1, the entire plane of the vertical plate 13 is welded to the gun head. Compared with welding the gun head through the bottom plate 11, welding the entire plane of the vertical plate 13 to the gun head in this embodiment greatly increases the connection strength between the clamping device 100 and the gun head.
[0033] Please see Figure 1 and Figure 2 In one embodiment, the length of the first arc groove 111 is equal to the length of the base plate 11. By setting the length of the first arc groove 111 to be equal to the length of the base plate 11, a longer section of the carbon rod can be inserted into the first arc groove 111, thus making the connection between the carbon rod and the base plate 11 more secure.
[0034] Please see Figures 1 to 3 In one embodiment, a first chamfer 111a is provided on the side of the first arc groove 111 away from the vertical plate 13. By machining the first chamfer 111a on the side of the first arc groove 111 away from the vertical plate 13, the carbon rod is inserted into the first arc groove 111 from one end with the first chamfer 111a. Thus, the first chamfer 111a acts as an auxiliary guide, making it easier for the carbon rod to enter the first arc groove 111.
[0035] Please see Figure 1 , Figure 2 and Figure 4 In one embodiment, the length of the second arc groove 21 is equal to the length of the second clamping member 2. By setting the length of the second arc groove 21 to be equal to the length of the second clamping member 2, a longer section of the carbon rod can be clamped into the second arc groove 21, thus making the connection between the carbon rod and the second clamping member 2 more secure.
[0036] Please see Figure 1 and Figure 4In one embodiment, a second chamfer 211 is provided at both ends of the second arc groove 21. By machining the second chamfer 211 at both ends of the second arc groove 21, the carbon rod is inserted into the second arc groove 21. In this way, the second chamfer 211 plays an auxiliary guiding role, making it easier for the carbon rod to enter the second arc groove 21.
[0037] Please see Figures 1 to 3 In one embodiment, the wedge block 3 includes a first engaging block 31 and a second engaging block 32. The first engaging block 31 is mounted on top of the second engaging block 32. The width of the first engaging block 31 is smaller than the width of the second engaging block 32. The first engaging block 31 is inclined along its length. The first engaging hole 121 includes a first engaging sub-hole 121a and a second engaging sub-hole 121b that are interconnected. The second engaging hole 122 includes a third engaging sub-hole 122a and a fourth engaging sub-hole 122b that are interconnected. Located on the same horizontal line, the two ends of the second locking block 32 are respectively locked into the first locking hole 121a and the third locking hole 122a. The second locking hole 121b is located at the top of the first locking hole 121a, and the fourth locking hole 122b is located at the top of the third locking hole 122a. The height of the second locking hole 121b is greater than the height of the fourth locking hole 122b. One end of the first locking block 31 passes through the second locking hole 121b and is locked into the fourth locking hole 122b. The other end of the wedge block 3 is locked into the second locking hole 121b. The two ends of the second locking block 32 are respectively locked into the first locking hole 121a of the first clamping member 1 and the third locking hole 122a of the second clamping member 2, providing a more stable basic connection and ensuring that it will not easily loosen or fall off due to external force during use. The first locking block 31 is inclined along its length, and its width is smaller than that of the second locking block 32. This design allows the wedge 3 to be more easily inserted into the first locking hole 121a and the fourth locking hole 122b. Simultaneously, since the height of the second locking hole 121b is greater than the height of the fourth locking hole 122b, this height difference helps guide the first locking block 31 to pass through accurately and finally lock into place, simplifying the assembly process. By precisely matching the first locking block 31, the second locking block 32, and the corresponding locking holes, not only is the overall stability of the clamping device 100 enhanced, but the risk of accidents caused by the wedge 3 loosening is also reduced. When the carbon rod needs to be replaced, simply use a tapping tool to tap the wedge 3 in the opposite direction to loosen it, and then it can be easily removed. This design takes into account the convenience and efficiency of actual operation, making maintenance simpler and faster, without the need for complex tools or cumbersome steps.
[0038] In one embodiment, the distance between the two side plates 12 is equal to the width of the second clamping member 2, and the length of the second clamping member 2 is equal to the length of the base plate 11. With this arrangement, the second clamping member 2 is snapped between the two side plates 12, which can prevent the second clamping member 2 from falling off the first clamping member 1 due to collision when the wedge block 3 is not inserted.
[0039] In one embodiment, the length of the first arc groove 111 is equal to the length of the second arc groove 21. By making the lengths of the first arc groove 111 and the second arc groove 21 equal, it can be ensured that the carbon rod is subjected to uniform clamping force along its entire length. This helps prevent damage or deformation of the carbon rod due to excessive local force, while also ensuring clamping stability. The design of equal lengths means more contact area for clamping the carbon rod, thereby enhancing the fixing effect of the first clamping member 1 and the second clamping member 2 on the carbon rod. Such a design is particularly suitable for applications requiring high stability, such as in the operation of electric arc furnaces, ensuring that the carbon rod does not move or fall off during use. When the lengths of the two arc grooves are the same, the design and manufacturing process of the clamping device 100 can be simplified. This is because there is no need to make separate design considerations or adjustments for arc grooves of different lengths, reducing production costs and potentially improving production efficiency. For operators, the design of equal lengths makes the process of installing and removing the carbon rod more intuitive and convenient. Since the upper and lower clamping positions correspond, the need for position adjustment is reduced, improving work efficiency. This design can accommodate carbon rods of different lengths; as long as the length of the carbon rod does not exceed the length of the arc groove, effective clamping can be achieved. This increases the versatility and flexibility of the clamping device 100, making it suitable for a wider variety of applications.
[0040] According to another aspect of this utility model, an automatic furnace opening machine is also proposed, including a furnace head and the aforementioned clamping device 100, wherein the clamping device 100 is welded to the furnace head. Since the automatic furnace opening machine includes all embodiments of the aforementioned clamping device 100, it possesses at least all the beneficial effects brought about by all the aforementioned embodiments, which will not be elaborated upon here.
[0041] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A clamping device, characterized in that, include: The first clamping member includes a base plate and two side plates. The two side plates are respectively connected to the two sides of the base plate. The top of the base plate has a first arc groove extending along the length direction of the base plate. The two side plates have a first snap-fit hole and a second snap-fit hole respectively. The first arc groove is used to snap-fit with the bottom of the workpiece to be clamped. The second clamping member has a second arc groove, the radius of the cross-section of the second arc groove is equal to the radius of the cross-section of the first arc groove, and the second arc groove is used to engage with the top of the workpiece to be clamped. A wedge, the top of which is inclined along the length of the wedge, one end of which passes through the first snap-fit hole and snaps into the second snap-fit hole, the other end of which snaps into the first snap-fit hole, and the bottom of which abuts against the second clamping member.
2. The clamping device as described in claim 1, characterized in that, The first clamping member further includes a vertical plate, the bottom of which is connected to the bottom plate, and the two sides of which are respectively connected to the two side plates. The vertical plate has a through hole, which is coaxially arranged with the first arc groove, and the radius of the cross-section of the first arc groove is greater than or equal to the radius of the through hole.
3. The clamping device as described in claim 2, characterized in that, The length of the first arc groove is equal to the length of the base plate.
4. The clamping device as described in claim 3, characterized in that, The first arc groove has a first chamfer on the side away from the vertical plate.
5. The clamping device as described in claim 1, characterized in that, The length of the second arc groove is equal to the length of the second clamping member.
6. The clamping device as described in claim 5, characterized in that, Both ends of the second arc groove are provided with a second chamfer.
7. The clamping device as described in claim 1, characterized in that, The wedge includes a first locking block and a second locking block. The first locking block is installed on top of the second locking block. The width of the first locking block is smaller than the width of the second locking block. The first locking block is inclined along the length direction. The first locking hole includes a first locking sub-hole and a second locking sub-hole that are interconnected. The second locking hole includes a third locking sub-hole and a fourth locking sub-hole that are interconnected. The first locking sub-hole and the third locking hole are located on the same horizontal line. Both ends of the second locking block are respectively locked into the first locking sub-hole and the third locking hole. The second locking sub-hole is located on top of the first locking hole. The fourth locking hole is located on top of the third locking hole. The height of the second locking sub-hole is greater than the height of the fourth locking hole. One end of the first locking block passes through the second locking sub-hole and is locked into the fourth locking hole. The other end of the wedge is locked into the second locking hole.
8. The clamping device as described in claim 2, characterized in that, The distance between the two side plates is equal to the width of the second clamping member, and the length of the second clamping member is equal to the length of the base plate.
9. The clamping device as described in claim 2, characterized in that, The length of the first arc groove is equal to the length of the second arc groove.
10. An automatic furnace starter, characterized in that, It includes a gun head and a clamping device as described in any one of claims 1 to 9, wherein the clamping device is welded to the gun head.