A pick brazing positioning mechanism

Abstract

The utility model discloses a kind of cutting pick brazing positioning mechanism, comprising: base;Rotary seat, the rotary seat with The base rotatable connection;Sleeve, the first end of the sleeve is connected with the rotary seat, a plurality of first cooling through holes are set up on the lateral wall of the sleeve, and the sleeve is used to accommodate the tooth handle of cutting pick;Positioning ring, the second end of the sleeve is detachably connected with the positioning ring, and the positioning ring is used to position the tooth disc of cutting pick.The utility model can improve the quality of product.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a brazing positioning mechanism for cutting teeth. Background Technology

[0002] Cutting teeth are key components of mining and tunneling machinery, primarily used in coal mining and tunneling operations. They are categorized by application into coal mining machine cutting teeth and tunneling machine cutting teeth, with the latter requiring higher hardness and impact resistance. Cutting teeth work in conjunction with cutting tooth sleeves and cutting tooth seats; these three components utilize alloy steel and carbide heads to enhance wear resistance, and structural optimization improves stress distribution.

[0003] Cutting teeth are typically welded from a tooth body to a carbide tip, and can be divided into two types: pick-shaped (conical) and blade-shaped (flat). In existing cutting teeth, the tooth tip and tooth disc, and the tooth disc and tooth shank are brazed simultaneously during the brazing process. This method involves brazing the tooth tip and tooth disc, and the tooth disc and tooth shank together, followed by quenching. In this case, the overall hardness and toughness after brazing are not ideal, and the overall process is also relatively complex, requiring two steps: first brazing, then quenching.

[0004] Although the brazing process is simplified after adopting the tempering process, only the tooth head and tooth shank need to be brazed. Since the tooth shank and tooth shank have been pre-tempered, when the tooth head and tooth shank are brazed again, the pre-tempered brazed part (i.e. the connection between the tooth shank and tooth shank) is prone to melting due to temperature. Even if it is cooled in the subsequent quenching process, the melting has already occurred, which may result in cracks that are not visible to the naked eye, affecting subsequent use and making it impossible to guarantee the quality. Utility Model Content

[0005] This utility model provides a brazing positioning mechanism for cutting teeth, which can improve product quality.

[0006] To solve the above-mentioned technical problems, this utility model provides a brazing positioning mechanism for cutting teeth, characterized in that it includes:

[0007] Base;

[0008] A rotating base, which is rotatably connected to the base;

[0009] A sleeve, the first end of which is connected to the rotating seat, and a plurality of first cooling through holes are provided on the side wall of the sleeve. The sleeve is used to accommodate the tooth shank of the cutting tooth.

[0010] A positioning ring is detachably connected to the second end of the sleeve, and the positioning ring is used to position the tooth disc of the cutting tooth.

[0011] As a preferred embodiment of the above technical solution, the brazing positioning mechanism for the cutting teeth further includes a magnetic attraction fixing mechanism. The magnetic attraction fixing mechanism is disposed inside the sleeve and includes a limiting rod, a fixing seat, a magnetic attraction element, and an elastic element. One end of the limiting rod is connected to the rotating seat. The fixing seat is slidably disposed on the limiting rod. The magnetic attraction element is disposed on the fixing seat, and the elastic element is disposed between the fixing seat and the rotating seat.

[0012] As a preferred embodiment of the above technical solution, the fixed base is provided with a receiving groove, the magnetic suction element is disposed in the receiving groove, a limiting hole is provided in the middle of the receiving groove, a limiting part is provided at the first end of the limiting rod, the limiting part is located in the limiting hole, and the second end of the limiting rod passes through the bottom of the limiting hole and is threadedly connected to the rotating base.

[0013] As a preferred embodiment of the above technical solution, the elastic element is a spring, which is sleeved on the limiting rod, with one end of the spring abutting against the fixed seat and the other end of the spring abutting against the rotating seat.

[0014] As a preferred embodiment of the above technical solution, a limiting groove is provided on the rotating seat, a threaded connection hole is provided in the middle of the limiting groove, the second end of the limiting rod is threadedly connected to the threaded connection hole, and one end of the elastic element is located in the limiting groove.

[0015] As a preferred embodiment of the above technical solution, the rotating seat is provided with a transmission component, and a transmission part is provided on the outer side of the transmission component.

[0016] As a preferred embodiment of the above technical solution, the rotating seat is provided with a rotating shaft, and the base is provided with a rotating hole. The rotating shaft is rotatably inserted into the rotating hole so that the rotating seat and the base are rotatably connected.

[0017] As a preferred embodiment of the above technical solution, the positioning ring includes a connecting part and a positioning part, the connecting part is threadedly connected to the sleeve, and the side wall of the positioning part is provided with a plurality of second cooling through holes.

[0018] As a preferred embodiment of the above technical solution, a plurality of second cooling through holes are evenly distributed along the circumferential direction of the positioning ring.

[0019] As a preferred embodiment of the above technical solution, a plurality of the first cooling through holes are evenly distributed along the axial and circumferential directions of the sleeve.

[0020] This utility model provides a brazing positioning mechanism for cutting teeth, comprising: a base, a rotating seat, a sleeve, and a positioning ring. The rotating seat is rotatably mounted on the base, the sleeve is disposed on the rotating seat, and the positioning ring is detachably connected to one end of the sleeve. Before welding, the assembled cutting teeth are placed on the brazing positioning mechanism, with the tooth shank inserted into the sleeve and the tooth disc abutting against the positioning ring, thereby completing the workpiece positioning. During welding, the rotating seat drives the sleeve to rotate under the action of a power source, thereby achieving uniform heating of the cutting teeth. Coolant enters the sleeve through several first cooling through holes opened on the side wall of the sleeve to cool the tooth shank, preventing overheating and melting of the brazing part (i.e., the connection between the tooth disc and the tooth shank), thus ensuring the product quality of the cutting teeth. In addition, the positioning ring is detachably connected to the sleeve, facilitating the replacement of positioning rings of different specifications to adapt to cutting teeth of different sizes, improving the applicability and flexibility of the positioning mechanism.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a cutting tooth brazing positioning mechanism according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a brazing positioning mechanism for cutting teeth in an embodiment of this utility model;

[0024] In the diagram: 1. Base; 2. Rotating seat; 3. Sleeve; 4. Positioning ring; 5. Magnetic fixing mechanism; 101. Rotating hole; 201. Limiting groove; 202. Threaded connection hole; 203. Transmission component; 204. Transmission part; 205. Rotating shaft; 301. First cooling through hole; 401. Connecting part; 402. Positioning part; 403. Second cooling through hole; 501. Limiting rod; 502. Fixing seat; 503. Magnetic component; 504. Elastic component; 505. Receiving groove; 506. Limiting hole; 507. Limiting part. Detailed Implementation

[0025] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See Figures 1 to 2 This utility model provides a brazing positioning mechanism for cutting teeth, characterized in that it includes:

[0027] Base 1;

[0028] Rotary seat 2, which is rotatably connected to the base 1;

[0029] Sleeve 3, the first end of which is connected to the rotating seat 2, and a plurality of first cooling through holes 301 are provided on the side wall of sleeve 3. Sleeve 3 is used to accommodate the tooth shank of the cutting tooth.

[0030] Positioning ring 4, which is detachably connected to the second end of sleeve 3, is used to position the tooth disc of the cutting tooth.

[0031] This utility model provides a brazing positioning mechanism for cutting teeth, including: a base 1, a rotating seat 2, a sleeve 3, and a positioning ring 4. The rotating seat 2 is rotatably mounted on the base 1, the sleeve 3 is disposed on the rotating seat 2, and the positioning ring 4 is detachably connected to one end of the sleeve 3. Before welding, the assembled cutting teeth are placed on the brazing positioning mechanism, and the shank of the cutting teeth is inserted into the sleeve 3, with the tooth disc abutting against the positioning ring 4, thereby completing the positioning of the workpiece. During welding, the rotating seat 2 drives the sleeve 3 to rotate under the action of the power source, thereby achieving uniform heating of the cutting teeth. Coolant enters the sleeve 3 through several first cooling through holes 301 opened on the side wall of the sleeve 3 to cool the tooth shank of the cutting teeth, preventing overheating that could cause the brazing part (i.e., the connection between the tooth disc and the tooth shank) to melt, thus ensuring the product quality of the cutting teeth. In addition, the positioning ring 4 is detachably connected to the sleeve 3, which makes it easy to replace positioning rings 4 of different specifications to adapt to cutting teeth of different sizes, thereby improving the applicability and flexibility of the positioning mechanism.

[0032] In a further embodiment of this invention, the brazing positioning mechanism for the cutting teeth further includes a magnetic attraction fixing mechanism 5. The magnetic attraction fixing mechanism 5 is disposed inside the sleeve 3. The magnetic attraction fixing mechanism 5 includes a limiting rod 501, a fixing seat 502, a magnetic attraction element 503, and an elastic element 504. One end of the limiting rod 501 is connected to the rotating seat 2. The fixing seat 502 is slidably disposed on the limiting rod 501. The magnetic attraction element 503 is disposed on the fixing seat 502. The elastic element 504 is disposed between the fixing seat 502 and the rotating seat 2.

[0033] In this embodiment, when the cutting tooth to be processed is placed inside the sleeve 3, the tooth shank is attracted and fixed by the magnetic fixing mechanism 5 to prevent displacement or loosening of the cutting tooth during processing, thereby improving the stability of positioning and the accuracy of welding. The magnetic suction element 503 firmly fixes the tooth shank inside the sleeve 3 through adsorption. When tooth shanks of different sizes are placed in, the fixing seat 502 slides downward along the limiting rod 501 under the gravity of the cutting tooth, so that the sleeve 3 can accommodate tooth shanks of different sizes. At the same time, the elastic element 504 provides an upward elastic support force, so that the fixing seat 502 maintains its initial position when no external force is applied, thereby realizing adaptive clamping and stable fixing of tooth shanks of different specifications, further improving the applicability and ease of operation of the positioning mechanism.

[0034] In a further embodiment of this invention, the fixed base 502 is provided with a receiving groove 505, the magnetic suction member 503 is disposed in the receiving groove 505, the receiving groove 505 is provided with a limiting hole 506 in the middle, the first end of the limiting rod 501 is provided with a limiting part 507, the limiting part 507 is located in the limiting hole 506, and the second end of the limiting rod 501 passes through the bottom of the limiting hole 506 and is threadedly connected to the rotating base 2.

[0035] In this embodiment, the fixed base 502 is provided with a receiving groove 505, and the magnetic suction member 503 is fixed in the receiving groove 505. The magnetic suction member 503 contacts the tooth shank and generates an adsorption effect, ensuring the stability of the cutting tooth during processing. The limiting hole 506 cooperates with the limiting rod 501, so that the fixed base 502 has high guiding accuracy during sliding, avoiding the problem of unstable fixation caused by offset. At the same time, the bottom of the fixed base 502 is provided with a through hole, and the second end of the limiting rod 501 passes through the through hole and is threadedly connected to the rotating seat 2. The first end of the limiting rod 501 is provided with a limiting part 507. The cross-sectional dimension of the limiting part 507 is larger than the diameter of the through hole, thereby restricting the fixed base 502 from detaching in the vertical direction, further enhancing the safety and reliability of the structure.

[0036] In a further embodiment of this invention, the elastic element 504 is a spring, which is sleeved on the limiting rod 501. One end of the spring abuts against the fixed seat 502, and the other end of the spring abuts against the rotating seat 2.

[0037] In this embodiment, the spring not only provides a stable restoring force for the fixed seat 502, but also effectively buffers the vibration and impact generated during the processing, thereby further improving the stability of the cutting tooth positioning.

[0038] In a further embodiment of this invention, a limiting groove 201 is provided on the rotating seat 2, and a threaded connection hole 202 is provided in the middle of the limiting groove 201. The second end of the limiting rod 501 is threadedly connected to the threaded connection hole 202, and one end of the elastic member 504 is located in the limiting groove 201.

[0039] In this embodiment, the second end of the limiting rod 501 is threadedly connected to the threaded connection hole 202. The installation depth of the limiting rod 501 can be adjusted by threading, thereby adjusting the height of the limiting part 507 relative to the rotating seat 2, so as to adapt to the fixing requirements of different lengths of toothed shanks. One end of the elastic element 504 is located in the limiting groove 201, and the other end abuts against the fixed seat 502, ensuring that the elastic element 504 will not shift during compression or extension, thereby ensuring the stability and reliability of the operation of the elastic element 504.

[0040] In a further embodiment of this invention, a transmission member 203 is provided on the rotating seat 2, and a transmission part 204 is provided on the outer side of the transmission member 203.

[0041] In this embodiment, the transmission component 203 is sleeved on the rotating seat 2 and fixedly connected to the rotating seat 2. Transmission teeth are provided on the outer side of the transmission component 203, and these transmission teeth mesh with an external drive mechanism to drive the rotation of the rotating seat 2, thereby rotating the sleeve 3 and achieving uniform heating and welding of the cutting teeth, thus improving the welding quality and efficiency of the cutting teeth. Through the cooperation of the transmission teeth and the external drive mechanism, the rotation angle and speed of the rotating seat 2 can be precisely controlled, ensuring that the sleeve 3 drives the cutting teeth to rotate uniformly, making the heating and welding process more stable and efficient.

[0042] In a further embodiment of this invention, the rotating seat 2 is provided with a rotating shaft 205, and the base 1 is provided with a rotating hole 101. The rotating shaft 205 is rotatably inserted into the rotating hole 101 so that the rotating seat 2 and the base 1 are rotatably connected.

[0043] In this embodiment, the rotating shaft 205 and the rotating hole 101 cooperate to form a rotatable connection between the rotating seat 2 and the base 1, thereby enabling the rotating seat 2 to rotate flexibly. This ensures that the sleeve 3 can rotate synchronously with the rotating seat 2, further improving the uniformity and stability of the cutting tooth heating and welding. The cooperation between the rotating shaft 205 and the rotating hole 101 also effectively supports the weight of the rotating seat 2 and its components, improving the overall structural load-bearing capacity and operational stability, thus further guaranteeing welding quality and equipment lifespan.

[0044] In a further embodiment of this invention, the positioning ring 4 includes a connecting part 401 and a positioning part 402. The connecting part 401 is threadedly connected to the sleeve 3, and the side wall of the positioning part 402 is provided with a plurality of second cooling through holes 403.

[0045] In this embodiment, the positioning ring 4 is threadedly connected to the sleeve 3 through the connecting part 401, which facilitates the replacement of positioning rings 4 of different specifications according to the size of the cutting teeth to be processed, thereby achieving precise positioning and fixing of cutting teeth of different sizes; the side wall of the positioning part 402 is provided with several second cooling through holes 403. During welding, the coolant can enter the interior of the positioning ring 4 through the second cooling through holes 403 to cool the tooth shank of the cutting teeth, preventing overheating that could cause the brazing part (i.e., the connection between the tooth disc and the tooth shank) to melt, thereby ensuring the product quality of the cutting teeth.

[0046] In a further embodiment of this invention, a plurality of second cooling through holes 403 are evenly distributed along the circumferential direction of the positioning ring 4.

[0047] In this embodiment, a plurality of second cooling through holes 403 are evenly distributed along the circumferential direction of the positioning ring 4, so that the coolant can evenly cover the surface of the cutting tooth shank, thereby achieving uniform cooling of the tooth shank and effectively preventing local overheating that could lead to a decrease in welding quality. Furthermore, as the rotating seat 2 drives the sleeve 3 to rotate, the second cooling through holes 403 rotate synchronously with the positioning ring 4, without affecting the flow of coolant inside and outside the positioning ring 4, thus ensuring the continuity and stability of the cooling effect.

[0048] In a further embodiment of this invention, a plurality of the first cooling through holes 301 are evenly distributed along the axial and circumferential directions of the sleeve 3.

[0049] In this embodiment, several first cooling through holes 301 are evenly distributed along the axial and circumferential directions of the sleeve 3, so that the coolant can evenly cover the surface of the cutting tooth shank, thereby achieving uniform cooling of the tooth shank and effectively preventing local overheating that could lead to a decrease in welding quality. Furthermore, as the rotating seat 2 drives the sleeve 3 to rotate, the first cooling through holes 301 rotate synchronously with the sleeve 3, without affecting the flow of coolant inside and outside the positioning ring 4, thus ensuring the continuity and stability of the cooling effect.

[0050] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A brazing positioning mechanism for cutting teeth, characterized in that, include: Base; A rotating base, which is rotatably connected to the base; A sleeve, the first end of which is connected to the rotating seat, and a plurality of first cooling through holes are provided on the side wall of the sleeve. The sleeve is used to accommodate the tooth shank of the cutting tooth. A positioning ring is detachably connected to the second end of the sleeve, and the positioning ring is used to position the tooth disc of the cutting tooth.

2. The brazing positioning mechanism for cutting teeth according to claim 1, characterized in that, The brazing positioning mechanism for the cutting teeth also includes a magnetic attraction fixing mechanism, which is disposed inside the sleeve. The magnetic attraction fixing mechanism includes a limiting rod, a fixed seat, a magnetic attraction element, and an elastic element. One end of the limiting rod is connected to the rotating seat. The fixed seat is slidably disposed on the limiting rod. The magnetic attraction element is disposed on the fixed seat. The elastic element is disposed between the fixed seat and the rotating seat.

3. The brazing positioning mechanism for cutting teeth according to claim 2, characterized in that, The fixed base is provided with a receiving groove, the magnetic suction element is disposed in the receiving groove, the middle part of the receiving groove is provided with a limiting hole, the first end of the limiting rod is provided with a limiting part, the limiting part is located in the limiting hole, and the second end of the limiting rod passes through the bottom of the limiting hole and is threadedly connected to the rotating base.

4. The brazing positioning mechanism for cutting teeth according to claim 3, characterized in that, The elastic element is a spring, which is sleeved on the limiting rod. One end of the spring abuts against the fixed seat, and the other end of the spring abuts against the rotating seat.

5. The brazing positioning mechanism for cutting teeth according to claim 2, characterized in that, The rotating seat is provided with a limiting groove, and a threaded connection hole is provided in the middle of the limiting groove. The second end of the limiting rod is threadedly connected to the threaded connection hole, and one end of the elastic element is located in the limiting groove.

6. The brazing positioning mechanism for cutting teeth according to claim 1, characterized in that, The rotating seat is provided with a transmission component, and a transmission part is provided on the outer side of the transmission component.

7. The brazing positioning mechanism for cutting teeth according to claim 1, characterized in that, The rotating seat is provided with a rotating shaft, and the base is provided with a rotating hole. The rotating shaft is rotatably inserted into the rotating hole so that the rotating seat and the base are rotatably connected.

8. The brazing positioning mechanism for cutting teeth according to claim 1, characterized in that, The positioning ring includes a connecting part and a positioning part. The connecting part is threadedly connected to the sleeve, and the side wall of the positioning part is provided with a plurality of second cooling through holes.

9. The brazing positioning mechanism for cutting teeth according to claim 8, characterized in that, Several second cooling through holes are evenly distributed along the circumferential direction of the positioning ring.

10. The brazing positioning mechanism for cutting teeth according to claim 1, characterized in that, Several of the first cooling through holes are evenly distributed along the axial and circumferential directions of the sleeve.

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