A drill bit for machining rail frogs
By designing independently replaceable working part and stop connection mechanism in the drill bit for track fork processing, the waste caused by wear of existing drill bits is solved, and the toughness and stability of the drill bit is improved through reinforcement materials and rubber pads. More efficient use and lower waste are achieved.
Patent Information
- Application Number
- CN202211075295.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-04
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2042-09-04
AI Technical Summary
The existing drill bits for track rush processing have severe wear after a long time of use, resulting in the need to simultaneously replace the entire drill bit, causing waste. At the same time, the connection part of the drill bit and the drilling machine is less worn and can still be used, but it cannot be replaced independently.
A drill bit including a working part and a connecting part is designed. Through the connecting mechanism of the sleeve block, the positioning block, the limiting spring and the auxiliary fixing assembly, the independent replacement of the working part and the stop is realized without the need to replace the entire drill bit, which enhances the The toughness of the drill bit and reduces weight.
Only the working part and stop block are replaced without the need to replace the connection part, reducing waste, and improving the toughness and stability of the drill bit by reinforcement rods and rubber pads, avoiding breakage or cracking problems caused by collisions.
Smart Images
Figure CN115301989B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of drill bits, in particular to a drill bit for machining track frogs. Background Art
[0002] A track frog is a device used to move train wheels from one rail to another. It consists of a fork core, wing rails and connecting parts. During the processing of the track frog, holes need to be opened on its outside to facilitate the use of bolts and other connecting parts to connect the various components of the track frog. A drill bit is essential when opening holes in the track frog.
[0003] The drill bit is mounted on a drilling machine and driven to rotate by the output shaft of the drilling machine, so that the drill bit performs a hole drilling operation at a designated position on the track frog.
[0004] Most of the existing drill bits for processing track frogs have shorter working parts. After long-term use, the working parts will be worn out and cannot be used anymore. However, the part of the drill bit that is connected to the drilling machine at the rear end will have less wear and can be used anymore. However, when replacing the drill bit, the entire drill bit needs to be replaced simultaneously, which causes great waste. Therefore, a drill bit for processing track frogs is proposed to solve the above problems. Summary of the invention
[0005] In order to make up for the shortcomings of the prior art, the existing drill bits for track frog processing are mostly drill bits with shorter working parts. After long-term use, the working parts will be worn out and cannot be used anymore, while the part where the rear end of the drill bit is connected to the drilling machine mostly has less wear and can continue to be used. However, when the drill bit is replaced, the entire drill bit needs to be replaced synchronously, resulting in a great waste. The present invention proposes a drill bit for track frog processing.
[0006] The technical solution adopted by the present invention to solve the technical problem is as follows: a drill bit for processing a track frog according to the present invention comprises a working part; a stopper is fixedly connected to one side of the working part, a connecting part is arranged on the side of the stopper away from the working part, and a connecting mechanism is arranged between the stopper and the connecting part;
[0007] The connecting mechanism includes a sleeve block, which is fixedly connected to a side of the stopper away from the working part, and the sleeve block is inserted into the inside of the sleeve groove, the sleeve groove is opened in the inside of the connecting part, a positioning block is fixedly connected to the inner wall of the connecting part, and the positioning block is inserted into the inside of the positioning groove, the positioning groove is opened on the outside of the sleeve block, an oblique groove is opened on the side of the positioning groove away from the stopper, a limiting cavity is opened on the inner wall of the positioning groove close to the oblique groove, and a limiting spring is arranged inside the limiting cavity, one end of the limiting block is sleeved inside the limiting cavity, and the end of the limiting block away from the limiting cavity extends to the inside of the positioning groove, inclined surfaces are opened on both sides of the top of the limiting block, and an auxiliary fixing component is arranged near the center of the positioning groove.
[0008] Preferably, a reinforcing rod is fixedly connected to the interior of the working part, and the reinforcing rod is made of carbon fiber.
[0009] Preferably, a cushion block is glued to one side of the sleeve block away from the stop block, and the cushion block is made of rubber.
[0010] Preferably, three groups of positioning blocks are provided, and the three groups of positioning blocks are evenly distributed on the inner wall of the sleeve groove in a circular array, and three groups of positioning grooves are opened, and the three groups of positioning grooves are evenly distributed on the outer wall of the sleeve block in a circular array.
[0011] Preferably, one end of the limit spring close to the limit block is fixedly connected to the limit block, and one end of the limit spring away from the limit block is fixedly connected to the inner wall of the limit cavity.
[0012] Preferably, both sides of the limiting block close to one end of the limiting spring are fixedly connected with sliders, and the sliders are slidably connected inside the sliding groove, and the sliding groove is opened on both sides of the limiting cavity.
[0013] Preferably, the auxiliary fixing assembly includes a fixing slot, the fixing slot is opened at a position close to the center of the positioning slot, and a top block is fixedly connected to the inside of the fixing slot, the fixing slot is engaged with the fixing block, the top of the fixing block is fixedly connected to a sleeve block, the top of the sleeve block is sleeved inside the sleeve slot, the sleeve slot is opened inside the fixing sleeve, the fixing sleeve is fixedly connected to the bottom end of the moving block, and a connecting spring is arranged inside the fixing sleeve, the fixing sleeve is slidably connected to the inside of the through slot, the through slot is opened on a side of the positioning block close to the limit block, the moving block is slidably connected to the inside of the moving slot, the moving slot is opened inside the connecting part, and a return spring is arranged inside the moving slot, and an anti-slip pad is glued to one end of the moving block away from the sleeve block, and the anti-slip pad is made of rubber.
[0014] Preferably, a movable block is fixedly connected to one side of the inner wall of the sleeve groove near one end of the sleeve block, and the movable block is slidably connected to the inside of the movable groove, the movable groove is opened on one side of the sleeve block, the end of the connecting spring near the sleeve block is fixedly connected to the sleeve block, and the end of the connecting spring away from the sleeve block is fixedly connected to the movable block, the side of the return spring near the movable block is fixedly connected to the movable block, and the side of the return spring away from the movable block is fixedly connected to the inner wall of the movable groove.
[0015] The present invention is beneficial in that:
[0016] 1. The present invention realizes the function of replacing only the working part and the stopper without replacing the connecting part through the structural design of the connecting mechanism, thereby solving the problem that the existing drill bits for track frog processing are mostly drill bits with shorter working parts, and the working parts will be worn out after long-term use and cannot be used further, while the part where the rear end of the drill bit is connected to the drilling machine is mostly less worn out and can be used further, but when replacing the drill bit, the entire drill bit needs to be replaced synchronously, resulting in great waste;
[0017] 2. The present invention achieves the function of reducing the overall weight of the working part while enhancing the toughness of the working part by adding a reinforcing rod structural design inside the working part, thereby solving the problem that the existing drill bit is easily broken or cracked due to collision during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;
[0020] Figure 2 It is a schematic diagram of a side cross-sectional three-dimensional structure of the present invention;
[0021] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;
[0022] Figure 4 For the present invention Figure 3 The enlarged structural diagram at B in the middle;
[0023] Figure 5 It is a schematic diagram of the explosion structure of the present invention;
[0024] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.
[0025] In the figure: 1, working part; 2, stopper; 3, connecting part; 41, reinforcing rod; 42, sleeve block; 43, sleeve groove; 44, cushion block; 45, positioning block; 46, positioning groove; 47, inclined groove; 48, limiting cavity; 49, limiting spring; 51, limiting block; 52, slider; 53, slide groove; 54, fixed groove; 55, top block; 56, fixed block; 57, sleeve block; 58, sleeve groove; 59, fixed sleeve; 61, connecting spring; 62, movable block; 63, movable groove; 64, moving block; 65, moving groove; 66, reset spring; 67, through groove; 68, anti-slip pad. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0027] Embodiment 1
[0028] See also Figure 1-Figure 5 As shown, a drill bit for processing a track frog comprises a working part 1; a stopper 2 is fixedly connected to one side of the working part 1, a connecting part 3 is arranged on the side of the stopper 2 away from the working part 1, and a connecting mechanism is arranged between the stopper 2 and the connecting part 3;
[0029] The connecting mechanism includes a sleeve block 42, the sleeve block 42 is fixedly connected to the side of the stopper 2 away from the working part 1, and the sleeve block 42 is inserted into the sleeve groove 43, the sleeve groove 43 is arranged in the interior of the connecting part 3, a positioning block 45 is fixedly connected to the inner wall of the connecting part 3, and the positioning block 45 is inserted into the interior of the positioning groove 46, the positioning groove 46 is arranged on the outer side of the sleeve block 42, an oblique groove 47 is arranged on the side of the positioning groove 46 away from the stopper 2, a limiting cavity 48 is arranged on the inner wall of the positioning groove 46 close to the oblique groove 47, and a limiting spring 49 is arranged in the limiting cavity 48, one end of a limiting block 51 is sleeved in the limiting cavity 48, and the end of the limiting block 51 away from the limiting cavity 48 extends to the interior of the positioning groove 46, inclined surfaces are arranged on both sides of the top of the limiting block 51, and an auxiliary fixing component is arranged near the center of the positioning groove 46;
[0030] During operation, the existing drill bits for track frog processing are mostly drill bits with shorter working parts. After long-term use, the working parts will be worn out and cannot be used any more. However, the part of the drill bit connected to the drilling machine at the rear end will have less wear and can be used any more. However, when replacing the drill bit, the entire drill bit needs to be replaced simultaneously, which causes great waste. When the working part 1 and the stopper 2 and the connecting part 3 are to be connected, the sleeve block 42 is first aligned with the sleeve groove 43, and then the sleeve block 42 is inserted into the sleeve groove 43. When the sleeve block 42 is inserted into the sleeve groove 43, the positioning block 45 fixedly connected to the inner wall of the sleeve groove 43 is simultaneously inserted into the positioning groove 46. When 45 is inserted into the interior of the positioning groove 46, the positioning block 45 squeezes the inclined surface opened on the top side of the limit block 51, so that the limit block 51 moves toward the interior of the limit cavity 48 under the action of the squeezing force and squeezes the limit spring 49, causing the limit spring 49 to produce elastic deformation. When the positioning block 45 is fully inserted into the interior of the positioning groove 46, the squeezing force of the positioning block 45 on the limit block 51 disappears. At this time, the limit block 51 returns to its original position under the action of the restoring force of the limit spring 49 and limits the positioning block 45, thereby fixing the connection between the working part 1 and the stop block 2 and the connecting part 3. The opposite is true when the connection between the working part 1 and the stop block 2 and the connecting part 3 is released.
[0031] Furthermore, a reinforcing rod 41 is fixedly connected to the interior of the working part 1, and the reinforcing rod 41 is made of carbon fiber;
[0032] During operation, the reinforcing rod 41 made of carbon fiber is used to reduce the overall weight of the working part 1 while enhancing the toughness of the working part 1 , thereby solving the problem that the existing drill bit is easily broken or cracked due to collision during use.
[0033] Furthermore, a cushion block 44 is glued to one side of the sleeve block 42 away from the stopper 2, and the cushion block 44 is made of rubber;
[0034] During operation, the rubber pad 44 can provide a certain degree of buffering effect on the vibration generated by the drill bit as a whole during operation.
[0035] Further, the positioning blocks 45 are provided in three groups, and the three groups of positioning blocks 45 are evenly distributed on the inner wall of the sleeve groove 43 in a circumferential array, and the positioning grooves 46 are provided in three groups, and the three groups of positioning grooves 46 are evenly distributed on the outer wall of the sleeve block 42 in a circumferential array;
[0036] During operation, the three groups of positioning blocks 45, positioning grooves 46 and other matching structures are provided to make the connection between the working part 1, the stopper 2 and the connecting part 3 more stable.
[0037] Furthermore, one end of the limit spring 49 close to the limit block 51 is fixedly connected to the limit block 51, and one end of the limit spring 49 away from the limit block 51 is fixedly connected to the inner wall of the limit cavity 48;
[0038] During operation, the restoring force of the limit spring 49 can automatically reset the limit block 51 after the extrusion force disappears.
[0039] Furthermore, both sides of the limit block 51 close to one end of the limit spring 49 are fixedly connected with sliders 52, and the sliders 52 are slidably connected inside the slide grooves 53, and the slide grooves 53 are provided on both sides of the limit cavity 48;
[0040] During operation, when the limit block 51 moves, the slider 52 fixedly connected to the limit block 51 slides synchronously inside the slide groove 53, and the movement distance of the limit block 51 is limited through the combined action of the slider 52 and the slide groove 53, thereby preventing the limit block 51 from moving excessively under the action of the restoring force of the limit spring 49 and escaping from the inside of the limit cavity 48.
[0041] Further, the auxiliary fixing component includes a fixing groove 54, which is arranged at a position close to the center of the positioning groove 46, and a top block 55 is fixedly connected to the inside of the fixing groove 54, the fixing groove 54 is engaged with the fixing block 56, a sleeve block 57 is fixedly connected to the top of the fixing block 56, the top of the sleeve block 57 is sleeved in the sleeve groove 58, the sleeve groove 58 is arranged in the fixing sleeve 59, the fixing sleeve 59 is fixedly connected to the bottom end of the moving block 64, and a connecting spring 61 is arranged in the fixing sleeve 59, the fixing sleeve 59 is slidably connected to the inside of the through groove 67, the through groove 67 is arranged on the side of the positioning block 45 close to the limit block 51, the moving block 64 is slidably connected to the inside of the moving groove 65, the moving groove 65 is arranged in the inside of the connecting part 3, and a return spring 66 is arranged in the inside of the moving groove 65, and an anti-skid pad 68 is glued to the end of the moving block 64 away from the sleeve block 57, and the anti-skid pad 68 is made of rubber.
[0042] During operation, when the positioning block 45 is inserted into the positioning groove 46, the inclined groove 47 squeezes the inclined surface of the bottom end of the fixed block 56, so that the fixed block 56 drives the sleeve block 57 to move into the sleeve groove 58, so that the sleeve block 57 squeezes the connecting spring 61, and the connecting spring 61 is elastically deformed to prevent the fixed block 56 from blocking the insertion of the positioning block 45. At this time, the bottom end of the fixed block 56 abuts against the inner wall of the positioning groove 46 to keep the sleeve block 57 completely sleeved in the sleeve groove 58. After the positioning block 45 is fully inserted into the positioning groove 46, the fixed sleeve 59 enters When the connection between the working part 1 and the stopper 2 and the connecting part 3 is released, the anti-skid pad 68 is first pushed to drive the moving block 64 to slide in the moving groove 65, so that the return spring 66 is squeezed and elastically deformed, and the moving block 64 is fixed to the fixed groove 54 through the fixing groove 54. 59 drives the sleeve block 57 and the fixed block 56 to move synchronously. At this time, the bottom end of the fixed block 56 is squeezed by the inclined surface opened on the top block 55, so that the fixed block 56 drives the sleeve block 57 to move inside the sleeve groove 58 and squeeze the connecting spring 61, so that the connecting spring 61 produces elastic deformation. When the moving block 64 is pushed to the limit, the fixed block 56 releases the engagement with the fixed groove 54, and the sleeve block 57 completely enters the sleeve groove 58. Then, the working part 1 and the stopper 2 are pulled away from the connecting part 3, so that the sleeve block 42 is removed from the inside of the reinforcing rod 41. The disassembly of the working part 1 and the stopper 2 releases the connection between the working part 1 and the stopper 2 and the connecting part 3. At this time, the anti-slip pad 68 is loosened, and the moving block 64 drives the sleeve block 57 and the fixed block 56 to move horizontally to the original position through the fixed sleeve 59 under the action of the restoring force of the reset spring 66. After the fixed block 56 and the sleeve block 57 move horizontally to the original position, the bottom end of the fixed block 56 is no longer squeezed by the top block 55. At this time, the sleeve block 57 drives the fixed block 56 to return to the original position synchronously under the action of the restoring force of the connecting spring 61, so as to facilitate the next fixation of the connection between the working part 1 and the stopper 2 and the connecting part 3.
[0043] Further, a movable block 62 is fixedly connected to one side of the inner wall of the sleeve groove 58 near one end of the sleeve block 57, and the movable block 62 is slidably connected to the inside of the movable groove 63, and the movable groove 63 is opened on one side of the sleeve block 57, the end of the connecting spring 61 near the sleeve block 57 is fixedly connected to the sleeve block 57, and the end of the connecting spring 61 away from the sleeve block 57 is fixedly connected to the movable block 64, the side of the return spring 66 near the movable block 64 is fixedly connected to the movable block 64, and the side of the return spring 66 away from the movable block 64 is fixedly connected to the inner wall of the movable groove 65;
[0044] During operation, when the socket block 57 moves, the movable block 62 fixed on the inner wall of the socket groove 58 slides synchronously inside the movable groove 63. The combined action of the movable block 62 and the movable groove 63 limits the moving distance of the socket block 57, preventing the socket block 57 from moving excessively under the action of the restoring force of the connecting spring 61 and escaping from the inside of the socket groove 58.
[0045] Working principle: When the working part 1 and the stopper 2 are to be connected with the connecting part 3, the sleeve block 42 is first aligned with the sleeve groove 43, and then the sleeve block 42 is inserted into the sleeve groove 43. When the sleeve block 42 is inserted into the sleeve groove 43, the positioning block 45 fixedly connected to the inner wall of the sleeve groove 43 is simultaneously inserted into the positioning groove 46. When the positioning block 45 is inserted into the positioning groove 46, the positioning block 45 squeezes the inclined surface provided on one side of the top of the limit block 51, so that the limit block 51 moves toward the limit under the action of the squeezing force. The positioning block 45 moves inside the positioning cavity 48 and squeezes the limit spring 49, causing the limit spring 49 to produce elastic deformation. When the positioning block 45 is fully inserted into the positioning groove 46, the squeezing force of the positioning block 45 on the limit block 51 disappears. At this time, the limit block 51 returns to its original position under the action of the restoring force of the limit spring 49 and limits the positioning block 45, thereby fixing the connection between the working part 1 and the stop block 2 and the connecting part 3. The opposite is true when the connection between the working part 1 and the stop block 2 and the connecting part 3 is released.
[0046] When the limit block 51 moves, the slider 52 fixedly connected to the limit block 51 slides synchronously inside the slide groove 53. The combination of the slider 52 and the slide groove 53 limits the moving distance of the limit block 51, preventing the limit block 51 from moving excessively under the restoring force of the limit spring 49 and escaping from the inside of the limit cavity 48.
[0047] When the positioning block 45 is inserted into the interior of the positioning groove 46, the inclined groove 47 squeezes the inclined surface provided at the bottom end of the fixing block 56, so that the fixing block 56 drives the sleeve block 57 to move into the interior of the sleeve groove 58, so that the sleeve block 57 squeezes the connecting spring 61, causing the connecting spring 61 to produce elastic deformation, thereby preventing the fixing block 56 from blocking the insertion of the positioning block 45. At this time, the bottom end of the fixing block 56 abuts against the inner wall of the positioning groove 46 to keep the sleeve block 57 completely sleeved in the sleeve groove 58. After the positioning block 45 is fully inserted into the interior of the positioning groove 46, the fixing sleeve 59 enters the interior of the through groove 67. At this time, the squeezing force of the inner wall of the positioning groove 46 on the fixing block 56 disappears, and the sleeve block 57 is restored to its original position under the action of the restoring force of the connecting spring 61 and inserted into the interior of the fixing groove 54 to engage with the fixing groove 54, thereby further fixing the connection between the working part 1 and the stopper 2 and the connecting part 3.
[0048] When the connection between the working part 1 and the stopper 2 and the connecting part 3 is to be released, the anti-skid pad 68 is first pushed to drive the moving block 64 to slide inside the moving groove 65, so that the reset spring 66 is squeezed and elastically deformed. When the moving block 64 moves, the sleeve block 57 and the fixed block 56 are driven to move synchronously through the fixed sleeve 59. At this time, the bottom end of the fixed block 56 is squeezed by the inclined surface opened on the top block 55, so that the fixed block 56 drives the sleeve block 57 to move inside the sleeve groove 58 and squeeze the connecting spring 61, so that the connecting spring 61 is elastically deformed. When the moving block 64 is pushed to the limit, the fixed block 56 is released from the engagement with the fixed groove 54, and the sleeve block 57 completely enters the sleeve groove 58. The working part 1 and the stopper 2 are pulled away from the connecting part 3 so that the sleeve block 42 is disengaged from the inside of the reinforcing rod 41 to complete the disassembly of the working part 1 and the stopper 2, so that the connection between the working part 1 and the stopper 2 and the connecting part 3 is released. At this time, the anti-slip pad 68 is released, and the moving block 64 drives the sleeve block 57 and the fixed block 56 to move laterally to the original position through the fixed sleeve 59 under the action of the restoring force of the reset spring 66. After the fixed block 56 and the sleeve block 57 move laterally to the original position, the bottom end of the fixed block 56 is no longer squeezed by the top block 55. At this time, the sleeve block 57 drives the fixed block 56 to return to the original position synchronously under the action of the restoring force of the connecting spring 61, so as to facilitate the next time to fix the connection between the working part 1 and the stopper 2 and the connecting part 3.
[0049] When the socket block 57 moves, the movable block 62 fixed on the inner wall of the socket groove 58 slides synchronously inside the movable groove 63. The combination of the movable block 62 and the movable groove 63 has the effect of limiting the moving distance of the socket block 57, preventing the socket block 57 from moving excessively under the action of the restoring force of the connecting spring 61 and escaping from the inside of the socket groove 58.
[0050] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.
Claims
1. A drill bit for machining a track frog, comprising a working portion (1); a stopper (2) is fixedly connected to one side of the working portion (1); a connecting portion (3) is provided on a side of the stopper (2) away from the working portion (1); Features: A connecting mechanism is provided between the stopper (2) and the connecting portion (3); The connecting mechanism comprises a sleeve block (42), the sleeve block (42) being fixedly connected to a side of the stopper (2) away from the working portion (1), and the sleeve block (42) being inserted into a sleeve groove (43), the sleeve groove (43) being provided inside the connecting portion (3), a positioning block (45) being fixedly connected to an inner wall of the connecting portion (3), and the positioning block (45) being inserted into a positioning groove (46), the positioning groove (46) being provided on an outer side of the sleeve block (42), and the positioning groove (46) being provided on a side away from the stopper (2). An inclined groove (47) is provided, a limiting cavity (48) is provided on the inner wall of the positioning groove (46) on one side close to the inclined groove (47), and a limiting spring (49) is provided inside the limiting cavity (48), one end of a limiting block (51) is sleeved inside the limiting cavity (48), and an end of the limiting block (51) away from the limiting cavity (48) extends to the inside of the positioning groove (46), inclined surfaces are provided on both sides of the top of the limiting block (51), and an auxiliary fixing component is provided at a position close to the center inside the positioning groove (46); The auxiliary fixing assembly comprises a fixing groove (54), the fixing groove (54) being arranged at a position close to the center of the positioning groove (46), and a top block (55) being fixedly connected to the inside of the fixing groove (54), the fixing groove (54) being engaged with the fixing block (56), a sleeve block (57) being fixedly connected to the top of the fixing block (56), the top of the sleeve block (57) being sleeved in the sleeve groove (58), the sleeve groove (58) being arranged in the inside of a fixing sleeve (59), the fixing sleeve (59) being fixedly connected to the bottom end of the moving block (64), and the fixing groove (54) being engaged with the fixing block (56), and the fixing groove (58) being engaged with the fixing block (56) and the top of the sleeve block (57) being sleeved in the inside of the sleeve groove (58), and the fixing sleeve (59) being fixedly connected to the bottom end of the moving block (64), and the fixing groove (54) being engaged with the fixing block (56). A connecting spring (61) is arranged inside the fixed sleeve (59), the fixed sleeve (59) is slidably connected inside the through slot (67), the through slot (67) is arranged on a side of the positioning block (45) close to the limit block (51), the moving block (64) is slidably connected inside the moving slot (65), the moving slot (65) is arranged inside the connecting portion (3), and a return spring (66) is arranged inside the moving slot (65), and an anti-skid pad (68) is glued to one end of the moving block (64) away from the sleeve block (57), and the anti-skid pad (68) is made of rubber; A movable block (62) is fixedly connected to one side of the inner wall of the sleeve groove (58) close to one end of the sleeve block (57), and the movable block (62) is slidably connected to the inside of the movable groove (63). The movable groove (63) is opened on one side of the sleeve block (57). An end of the connecting spring (61) close to the sleeve block (57) is fixedly connected to the sleeve block (57), and an end of the connecting spring (61) away from the sleeve block (57) is fixedly connected to the movable block (64). A side of the return spring (66) close to the movable block (64) is fixedly connected to the movable block (64), and a side of the return spring (66) away from the movable block (64) is fixedly connected to the inner wall of the movable groove (65).
2. A drill bit for machining a track frog according to claim 1, Features: A reinforcing rod (41) is fixedly connected to the interior of the working portion (1), and the reinforcing rod (41) is made of carbon fiber material.
3. A drill bit for machining a track frog according to claim 2, Features: A cushion block (44) is glued to one side of the sleeve block (42) away from the stop block (2), and the cushion block (44) is made of rubber.
4. A drill bit for machining a track frog according to claim 3, Features: The positioning blocks (45) are provided in three groups, and the three groups of positioning blocks (45) are evenly distributed on the inner wall of the sleeve groove (43) in a circular array. The positioning grooves (46) are provided in three groups, and the three groups of positioning grooves (46) are evenly distributed on the outer wall of the sleeve block (42) in a circular array.
5. A drill bit for machining a track frog according to claim 4, Features: One end of the limit spring (49) close to the limit block (51) is fixedly connected to the limit block (51), and one end of the limit spring (49) away from the limit block (51) is fixedly connected to the inner wall of the limit cavity (48).
6. A drill bit for machining a track frog according to claim 5, Features: Both sides of the limit block (51) close to one end of the limit spring (49) are fixedly connected with sliders (52), and the sliders (52) are slidably connected inside the slide grooves (53), and the slide grooves (53) are provided on both sides of the limit cavity (48).