Magnetic steel product test coring water-cooling clamp
By designing the water-passing channel and water inlet chamber in the rotating sleeve in the cored water-cooled fixture in the magnetic steel product test, the rapid cooling of the inner wall of the hollow drill is achieved, and the problem of breaking and damage caused by the inability to effectively cool down is solved. Extend the service life of hollow drills.
Patent Information
- Application Number
- CN202421121214.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When a traditional hollow drill is rotating at high speed, it produces a lot of heat due to high-speed friction with the magnetic steel surface, and it is difficult to effectively cool down simply by flushing through external water flow, resulting in broken and damaged hollow drill.
Design a magnetic steel product test core water-cooled fixture, including a fixing sleeve, a rotary sleeve and a clamping structure. By setting a water passage and a water inlet chamber in the rotary sleeve, water flows from the inlet chamber into the rotary sleeve. It is sprayed out of the inner cavity of the hollow drill through the water passage to achieve rapid cooling of the inner wall of the hollow drill.
Effectively cool down the inside of the hollow drill, extend the service life of the hollow drill, and ensure stable performance during the drilling process.
Smart Images
Figure CN222449336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of samplers, in particular to a water-cooling fixture for testing and coring magnetic steel products. Background Art
[0002] Before the magnetic steel products are put into production, material sampling is required on their surface, and then the taken magnetic steel samples are tested and inspected in various environments and conditions through a testing machine. Since the magnetic steel products have a high hardness, they are generally required to be sampled by rotating a hollow drill at high speed. The traditional method of cooling the hollow drill is usually to set a water pipe outside the hollow drill to flush the outer surface with water to achieve the purpose of cooling. However, when the hollow drill is drilling at high speed, a large amount of heat will be generated inside the hollow drill due to the high-speed friction with the magnetic steel surface. It is difficult to effectively cool the inside of the hollow drill simply by external water flushing, which leads to the fracture and damage of the hollow drill, which needs to be improved urgently. Utility Model Content
[0003] The utility model aims to provide a water-cooling fixture for testing and coring a magnetic steel product, which has the effect of efficiently cooling the inside of a hollow drill and prolonging the service life of the hollow drill.
[0004] The above technical objectives of the utility model are achieved through the following technical solutions: a water-cooling fixture for testing and coring magnetic steel products, comprising a fixed sleeve, a rotating sleeve and a clamping structure, wherein the fixed sleeve is provided with a water inlet hole, the rotating sleeve is arranged in the inner cavity of the fixed sleeve, the rotating sleeve is provided with a water passage, a water gap is formed between the fixed sleeve and the rotating sleeve, and the water inlet hole is connected with the water inlet end of the water passage through the water gap;
[0005] The clamping structure is used to fix the hollow drill to the rotating sleeve and to make the inner cavity of the hollow drill communicate with the water outlet of the water passage.
[0006] By adopting the above technical scheme, the hollow drill is fixedly installed on the rotating sleeve through the clamping structure during assembly, and the driving device drives the rotating sleeve to rotate in the fixed sleeve, and at the same time drives the hollow drill to rotate at high speed. When the hollow drill rotates at high speed on the surface of the magnetic steel product, water flows into the water gap between the fixed sleeve and the rotating sleeve through the water inlet hole, and then the water in the water gap flows into the rotating sleeve through the water channel, and finally sprays out from the inner cavity of the hollow drill, continuously flushing the cutting contact surface between the inner wall of the hollow drill and the magnetic steel surface, thereby achieving rapid cooling of the inner wall of the hollow drill, which has the effect of efficiently cooling the inside of the hollow drill and extending the service life of the hollow drill.
[0007] The utility model is further configured as follows: the water passage comprises a water inlet chamber and a water outlet chamber which are connected to each other, the water inlet chamber is opened along the radial direction of the rotating sleeve, and the water outlet chamber is opened along the axial direction of the rotating sleeve.
[0008] By adopting the above technical solution, the water inlet chamber and the water outlet chamber are bent, so that the water flow in the water inlet channel can be buffered at the connecting bend between the water inlet chamber and the water outlet chamber, so that the water flow remaining in the water outlet chamber can be more uniform, ensuring that the hollow drill can be evenly and continuously cooled during the drilling process.
[0009] The utility model is further configured as follows: a retaining spring is provided between the fixed sleeve and the rotating sleeve, and the rotating sleeve is axially limited and stopped by the retaining spring and the fixed sleeve.
[0010] By adopting the above technical solution, the addition of the retaining spring can maintain the relative position between the fixed sleeve and the rotating sleeve, ensuring that the water gap between the rotating sleeve and the fixed sleeve can always be maintained at the corresponding position, thereby ensuring that the water flow in the water inlet gap can flow smoothly.
[0011] The utility model is further configured as follows: a sealing structure is provided between the fixed sleeve and the rotating sleeve, and when the rotating sleeve rotates relative to the fixed sleeve, the sealing structure is used to seal the water gap on both sides of the water inlet end of the water passage.
[0012] By adopting the above technical solution, the upper and lower ends of the water gap at the water inlet end of the water passage can be sealed by using a sealing structure, thereby improving the waterproof sealing between the rotating sleeve and the fixed sleeve.
[0013] The utility model is further configured as follows: the sealing structure includes at least two sealing rings arranged between the rotating sleeve and the fixed sleeve, and a plurality of the sealing rings are sealingly arranged in the water-passing gap and located at the upper and lower sides of the water inlet end of the water-passing channel.
[0014] The utility model is further configured as follows: the clamping structure includes a locking piece and a drill chuck, the drill chuck is clamped and matched with a hollow drill, the locking piece is locked and matched with a rotating sleeve, the water outlet end of the water passage is set to a flared shape facing outward, and the drill chuck is set in a cone shape corresponding to the water outlet end of the water passage, and when the drill chuck is locked between the locking piece and the rotating sleeve, the two ends of the drill chuck are respectively matched with the corresponding rotating sleeve and locking piece stopper.
[0015] By adopting the above technical solution, with the cooperation of the locking piece, the rotating sleeve and the drill chuck, the hollow drill can be quickly disassembled and assembled, and the efficiency of replacing the hollow drill is improved. The flared water outlet cavity design is conducive to the rapid insertion of the drill chuck with the hollow drill installed in the water blowing cavity, thereby increasing the speed of the hollow drill.
[0016] The utility model is further configured as follows: the locking member is configured as a locking nut, the outer wall of the rotating sleeve is provided with an external thread, and the rotating sleeve cooperates with the locking nut thread through the external thread.
[0017] The utility model is further configured as follows: the drill chuck is provided with a plurality of strain grooves connected to its inner cavity in an up-and-down offset manner, and the drill chuck can generate elastic deformation in radial direction through the strain grooves.
[0018] By adopting the above technical solution and providing the strain groove, the drill chuck can be elastically contracted inward when locked in the rotating sleeve, thereby clamping the hollow drill in the drill chuck.
[0019] The utility model is further configured as follows: a first positioning and mounting hole is provided on a side wall of the fixing sleeve.
[0020] By adopting the above technical solution, the fixing sleeve can be fixed on the corresponding operating table by using the first positioning and mounting hole, so that the fixing sleeve can remain stationary when the rotating sleeve rotates.
[0021] The utility model is further configured as follows: the rotating sleeve is coaxially provided with a second positioning installation hole.
[0022] By adopting the above technical solution, the rotating sleeve can be coaxially fixed on the output end of the driving device by using the second positioning and mounting hole, so that the driving device can drive the rotating sleeve to rotate.
[0023] In summary, the utility model has the following beneficial effects:
[0024] A rotating sleeve is rotatably arranged in a fixed sleeve, and a hollow drill is fixedly connected to the lower end of the rotating sleeve by a clamping structure. A water inlet hole is provided on the side wall of the fixed sleeve, a water passage is provided on the rotating sleeve, and a water passage gap is formed between the fixed sleeve and the rotating sleeve. The water inlet hole is connected with the water inlet end of the water passage through the water passage gap, and the water outlet end of the water passage is connected with the inner cavity of the hollow drill. When the hollow drill rotates at a high speed on the surface of the magnetic steel product, water flows into the water passage gap between the fixed sleeve and the rotating sleeve through the water inlet hole, and then the water in the water passage gap flows into the rotating sleeve through the water passage channel, and finally sprays out from the inner cavity of the hollow drill, continuously flushing the cutting contact surface between the inner wall of the hollow drill and the surface of the magnetic steel, thereby realizing rapid cooling of the inner wall of the hollow drill, which has the effect of efficiently cooling the inside of the hollow drill and extending the service life of the hollow drill. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a structural diagram of the utility model.
[0026] Figure 2 It is a longitudinal sectional view of the utility model.
[0027] Figure 3 This utility model Figure 2 A partial enlarged view of area A.
[0028] Figure 4 It is an exploded view of the utility model.
[0029] In the figure: 1, fixing sleeve; 10, water inlet hole; 11, water gap; 12, first positioning mounting hole; 2, rotating sleeve; 21, water passage; 211, water inlet chamber; 212, water outlet chamber; 22, external thread; 23, second positioning mounting hole; 3, drill chuck; 31, strain groove; 4, locking piece; 5, retaining ring; 6, sealing ring; 7, hollow drill; 71, positioning part. DETAILED DESCRIPTION
[0030] The utility model is further described below in conjunction with the accompanying drawings.
[0031] A water-cooling fixture for testing and coring magnetic steel products, such as Figure 1-4 As shown, it includes a fixed sleeve 1, a rotating sleeve 2 and a clamping structure. The fixed sleeve 1 is provided with a water inlet hole 10. The rotating sleeve 2 is rotatably arranged in the inner cavity of the fixed sleeve 1. The rotating sleeve 2 is provided with a water passage 21. A water passage gap 11 is formed between the fixed sleeve 1 and the rotating sleeve 2. The water inlet hole 10 is communicated with the water inlet end of the water passage 21 through the water passage gap 11; the clamping structure is used to fix the hollow drill 7 to the rotating sleeve 2, and to make the inner cavity of the hollow drill 7 communicate with the water outlet of the water passage 21; the side wall of the fixed sleeve 1 is provided with a first positioning and mounting hole 12, and the fixed sleeve 1 can be fixed on the corresponding operating table by using the first positioning and mounting hole 12, so as to The fixed sleeve 1 can remain stationary when the rotating sleeve 2 rotates; the rotating sleeve 2 is coaxially provided with a second positioning mounting hole 23, and the rotating sleeve 2 can be coaxially fixed to the output end of the driving device by means of the second positioning mounting hole 23, so that the driving device can drive the rotating sleeve 2 to rotate; a retaining spring 5 is provided between the fixed sleeve 1 and the rotating sleeve 2, and the rotating sleeve 2 is axially limited and stopped by the retaining spring 5 and the fixed sleeve 1. The addition of the retaining spring 5 can maintain the relative position between the fixed sleeve 1 and the rotating sleeve 2, and ensure that the water gap 11 between the rotating sleeve 2 and the fixed sleeve 1 can always be maintained at the corresponding position, thereby ensuring that the water flow in the water inlet gap can flow smoothly.
[0032] like Figure 3-4As shown, the water passage 21 includes a water inlet chamber 211 and a water outlet chamber 212 that are connected to each other. The water inlet chamber 211 is opened along the radial direction of the rotating sleeve 2, and the water outlet chamber 212 is opened along the axial direction of the rotating sleeve 2. The water inlet chamber 211 and the water outlet chamber 212 are bent so that the water flowing through the water passage can be buffered at the connecting bend between the water inlet chamber 211 and the water outlet chamber 212, so that the water flow remaining in the water outlet chamber 212 can be more uniform, ensuring that the hollow drill 7 can be uniformly and continuously cooled during the drilling process; the clamping structure includes a locking member 4, a drill chuck 3, and the rotating sleeve 2 is provided with an external thread 22. The locking member 4 in this embodiment is set as a locking nut. The rotating sleeve 2 cooperates with the locking nut thread through the external thread 22 to lock the drill chuck 3 installed with the hollow drill 7 in the water outlet chamber 212. With the cooperation of the locking member 4, the rotating sleeve 2 and the drill chuck 3, the hollow drill 7 can be quickly disassembled and assembled, thereby improving the efficiency of replacing the hollow drill 7. The water outlet chamber 212 is set to a flared shape from the water inlet end to the water outlet end. The drill chuck 3 is set in a cone shape corresponding to the water outlet chamber 212. When the locking nut and the rotating sleeve 2 thread cooperate to lock the drill chuck in the water outlet chamber 212, the drill chuck 3 and the locking nut are locked. The nut stopper cooperates with the design of the flared water outlet cavity 212, which is conducive to the rapid insertion of the drill chuck 3 with the hollow drill 7 installed in the water blowing cavity, thereby increasing the speed of the hollow drill 7; the drill chuck 3 is provided with a plurality of strain grooves 31 connected to its inner cavity in an upper and lower offset manner, and the drill chuck 3 can produce elastic deformation in the radial direction through the strain grooves 31. The provision of the strain grooves 31 can enable the drill chuck 3 to produce elastic contraction inward when it is locked in the rotating sleeve 2, thereby clamping the hollow drill 7 in the drill chuck 3; the hollow drill 7 in this embodiment is radially extended with a positioning portion 71, and the positioning portion 71 and the locking portion 71 are connected to each other. Tightening nut stopper cooperation; a sealing structure is provided between the fixed sleeve 1 and the rotating sleeve 2, and the sealing structure includes two sealing rings 6 arranged between the rotating sleeve 2 and the fixed sleeve 1, and a plurality of sealing rings 6 are sealed in the water gap 11 and are located on the upper and lower sides of the water inlet end of the water passage 21. When the rotating sleeve 2 rotates relative to the fixed sleeve 1, the sealing rings 6 on both sides are used to seal the water gap 11 on both sides of the water inlet end of the water passage. The sealing structure can be used to seal the upper and lower ends of the water gap 11 at the water inlet end of the water passage, thereby improving the waterproof sealing between the rotating sleeve 2 and the fixed sleeve 1.
[0033] The basic working principle of the utility model is as follows: during assembly, the hollow drill 7 is fixedly mounted on the rotating sleeve 2 by a clamping structure, and the driving device drives the rotating sleeve 2 to rotate in the fixed sleeve 1, and at the same time drives the hollow drill 7 to rotate at high speed. When the hollow drill 7 rotates at high speed on the surface of the magnetic steel product, water flows into the water gap 11 between the fixed sleeve 1 and the rotating sleeve 2 through the water inlet hole 10, and then the water in the water gap 11 flows into the rotating sleeve 2 through the water passage 21, and finally sprays out from the inner cavity of the hollow drill 7, continuously flushing the cutting contact surface between the inner wall of the hollow drill 7 and the magnetic steel surface, thereby realizing rapid cooling of the inner wall of the hollow drill 7, which has the effect of efficiently cooling the inside of the hollow drill 7 and extending the service life of the hollow drill 7.
[0034] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A water-cooling fixture for testing and coring magnetic steel products, characterized in that: The invention comprises a fixed sleeve (1), a rotating sleeve (2) and a clamping structure, wherein the fixed sleeve (1) is provided with a water inlet hole (10), the rotating sleeve (2) is arranged in the inner cavity of the fixed sleeve (1), the rotating sleeve (2) is provided with a water passage (21), a water passage gap (11) is formed between the fixed sleeve (1) and the rotating sleeve (2), and the water inlet hole (10) is connected with the water inlet end of the water passage (21) through the water passage gap (11); The clamping structure is used to fix the hollow drill to the rotating sleeve (2) and to connect the inner cavity of the hollow drill to the water outlet of the water passage (21).
2. A water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: The water passage (21) comprises a water inlet chamber (211) and a water outlet chamber (212) which are connected to each other; the water inlet chamber (211) is opened along the radial direction of the rotating sleeve (2); and the water outlet chamber (212) is opened along the axial direction of the rotating sleeve (2).
3. A water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: A retaining spring (5) is provided between the fixed sleeve (1) and the rotating sleeve (2), and the rotating sleeve (2) is axially limited and stopped by the retaining spring (5) and the fixed sleeve (1).
4. A water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: A sealing structure is provided between the fixed sleeve (1) and the rotating sleeve (2); when the rotating sleeve (2) rotates relative to the fixed sleeve (1), the sealing structure is used to seal both sides of the water-passing gap (11) located at the water inlet end of the water-passing channel (21).
5. A water-cooling fixture for testing and coring magnetic steel products according to claim 4, characterized in that: The sealing structure comprises at least two sealing rings (6) arranged between the rotating sleeve (2) and the fixed sleeve (1), and a plurality of the sealing rings (6) are sealingly arranged in the water-passing gap (11) and are located at the upper and lower sides of the water inlet end of the water-passing channel (21).
6. A water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: The clamping structure comprises a locking piece (4) and a drill chuck (3); the drill chuck (3) is clamped and matched with a hollow drill; the locking piece (4) is locked and matched with a rotating sleeve (2); the water outlet end of the water passage (21) is arranged to be flared outward; the water outlet end of the drill chuck (3) is arranged to be conical in shape corresponding to the water outlet end of the water passage (21); when the drill chuck (3) is locked between the locking piece (4) and the rotating sleeve (2), the two ends of the drill chuck (3) are respectively matched with the corresponding rotating sleeve (2) and the locking piece (4) stoppers.
7. A water-cooling fixture for testing and coring magnetic steel products according to claim 6, characterized in that: The locking member (4) is configured as a locking nut, the outer wall of the rotating sleeve (2) is provided with an external thread (22), and the rotating sleeve (2) is threadably matched with the locking nut via the external thread (22).
8. The water-cooling fixture for testing and coring magnetic steel products according to claim 6, characterized in that: The drill chuck (3) is provided with a plurality of strain grooves (31) in an upper and lower offset manner and communicating with the inner cavity thereof. The drill chuck (3) can generate elastic deformation in a radial direction through the strain grooves (31).
9. The water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: The side wall of the fixing sleeve (1) is provided with a first positioning and mounting hole (12).
10. A water-cooling fixture for testing and coring magnetic steel products according to claim 1, characterized in that: The rotating sleeve (2) is coaxially provided with a second positioning installation hole (23).