A drill bit passivation machine

Abstract

This application belongs to the field of drill bit technology and discloses a drill bit passivation machine, including a worktable, a mounting frame, and a rotating ring. A drive assembly is mounted on the mounting frame. The rotating ring has several circumferentially spaced placement holes arranged vertically. A sliding hole is formed on the inner wall of the rotating ring corresponding to the placement holes, and the sliding hole communicates with the corresponding placement hole. A sliding block is slidably disposed within the sliding hole. A first wedge block is disposed on the side of the sliding block away from the placement hole. A base plate is disposed on the bottom surface of the rotating ring, and a lifting column is vertically slidably disposed on the top surface of the base plate. A second wedge block is disposed on the outer wall of the lifting column corresponding to the first wedge block, and the inclined surface of the second wedge block contacts the inclined surface of the first wedge block. A passivation assembly is also disposed on the worktable. The vertical movement of the lifting column drives the several second wedge blocks to move synchronously vertically, pushing the first wedge block and the sliding block to move. The sliding block is tightly pressed against the outer wall of the drill bit. Through the linkage of multiple sets of wedge blocks, the drill bit in all placement holes is synchronously and securely fixed.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, and in particular to a drill bit passivation machine. Background Technology

[0002] A drill bit is a cutting tool used to drill through holes or blind holes in solid materials and to enlarge existing holes. The most common machining method for drill bits is grinding, followed by passivation treatment after machining.

[0003] Chinese utility model patent CN220699046U discloses a drill bit passivation machine, including a mounting frame with a mounting box, a grinding mechanism, and a placement mechanism fixedly mounted on the top. The placement mechanism includes a second motor, a rotating rod, a gear, a placement plate, and a fixing plate. The fixing plate is fixedly mounted on the top of the rotating rod, and the placement plate is fixedly mounted on the top of the fixing plate. The top of the placement plate has multiple sets of through holes, and the outer side of the placement plate has multiple sets of threaded holes. A knob is threaded into each of the threaded holes. By placing the drill bit in the through holes within the placement plate and rotating the knob to make the outer side of the knob fit against the outer side of the drill bit, the drill bit is fixed, preventing it from shifting position during processing and improving processing quality.

[0004] Regarding the aforementioned technologies, the inventors believe the following drawbacks exist: During use, each drill bit in the multiple perforations at the top of the placement plate requires manual rotation of a knob by the operator to secure it via threaded tightening. This repetitive mechanical operation consumes a significant amount of time and effort, increasing the workload of the operators. Furthermore, frequent knob operation may cause wrist fatigue and reduce production efficiency. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a drill bit passivation machine.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a drill bit passivation machine, including a worktable, a mounting frame on the top surface of the worktable, a rotating ring vertically rotatably mounted on the mounting frame, a driving component for driving the rotating ring to rotate on the mounting frame, a plurality of circumferentially spaced placement holes vertically opened on the rotating ring, a sliding hole corresponding to the placement hole opened on the inner wall of the rotating ring, the sliding hole communicating with the corresponding placement hole, a sliding block slidably mounted in the sliding hole, a first wedge block being mounted on the side of the sliding block away from the placement hole, a base plate being provided on the bottom surface of the rotating ring, a lifting column being vertically slidably mounted on the top surface of the base plate, a second wedge block being mounted on the outer wall of the lifting column corresponding to the first wedge block, the inclined surface of the second wedge block contacting the inclined surface of the first wedge block, and a passivation component being provided on the worktable.

[0007] By adopting the above technical solution, a worktable, rotating ring, drive assembly, first wedge block, lifting column, second wedge block, and passivation assembly are set up. When the drill bit needs to be processed, it is placed vertically in the placement hole, with the bottom of the drill bit contacting the top surface of the base plate. The vertical movement of the lifting column drives several second wedge blocks to move vertically synchronously. The inclined surface of the second wedge block contacts the inclined surface of the first wedge block. Guided by the inclined surface, the first wedge block and its connected sliding block move horizontally towards the center of the corresponding placement hole. Finally, the side of the sliding block away from the first wedge block is tightly pressed against the outer wall of the drill bit. Through the coordinated action of multiple sets of wedge blocks, the drill bits in all placement holes are synchronously and securely fixed. This eliminates the need to fix each drill bit individually, reducing the labor intensity of workers and improving production efficiency.

[0008] Furthermore, the top surface of the base plate is vertically provided with four columns arranged in a rectangular array, and the lifting columns are vertically provided with four guide holes arranged in a rectangular array, the guide holes being slidably connected to the corresponding columns.

[0009] By adopting the above technical solution, and setting up columns and guide holes, the stability of the lifting column is ensured.

[0010] Furthermore, the bottom surface of the lifting column is vertically rotatably provided with a threaded rod, the base plate is helically connected to the threaded rod through a threaded hole, and a handle is provided at the lower end of the threaded rod.

[0011] By adopting the above technical solution, a threaded rod and a handle are set. Rotating the handle drives the threaded rod to rotate. The threaded rod forms a transmission fit with the base plate through the threaded pair. When the threaded rod rotates, it generates a vertical displacement relative to the base plate along the axial direction, thereby driving the lifting column fixedly connected to the top of the threaded rod to complete the lifting action synchronously.

[0012] Furthermore, a connecting plate is vertically arranged on both sides of the sliding block, and a reset spring is provided between the connecting plate and the inner wall of the rotating ring.

[0013] By adopting the above technical solution, a connecting plate and a return spring are installed. When the drill bit is fixed, the movement of the sliding block synchronously drives the connecting plate to compress the return spring, allowing the return spring to store elastic potential energy. After the drill bit finishes processing, the lifting column drives the second wedge block to return downward, releasing the thrust on the first wedge block. At this time, the return spring releases its elastic potential energy, pushing the connecting plate outward in the opposite direction. The connecting plate then drives the sliding block to slide along the sliding hole to its initial position, completing the automatic return of the sliding block and preparing it for the next loading. This design achieves the reciprocating motion of the sliding block through the conversion of return elastic potential energy, requiring no additional power source, and is compact and reliable in operation.

[0014] Furthermore, the mounting frame includes four vertically arranged support columns in a rectangular array, and a mounting plate is provided at the upper end of the four support columns. The mounting plate has a circular opening, and the rotating ring is rotatably connected to the circular opening.

[0015] By adopting the above technical solution, including setting support columns, mounting plates, and circular openings, the stability of the rotating ring is ensured.

[0016] Furthermore, the drive assembly includes a drive motor vertically mounted on the bottom surface of the mounting plate. The output axis of the drive motor passes through the mounting plate and is provided with an active synchronous pulley. A driven synchronous pulley is fixedly sleeved on the rotating ring. The driven synchronous pulley and the active synchronous pulley are connected by a synchronous belt.

[0017] By adopting the above technical solution, a drive motor, an active synchronous pulley, and a driven synchronous pulley are set up. The drive motor drives the active synchronous pulley to rotate, thereby driving the driven synchronous pulley and the rotating ring to rotate through the synchronous belt.

[0018] Furthermore, the passivation component includes vertical plates spaced apart on the worktable, a lifting plate disposed between two of the vertical plates, and a grinding plate disposed on the bottom surface of the lifting plate.

[0019] Furthermore, each of the two upright plates has two vertically arranged slide rails on one adjacent side. The lifting plate is slidably connected to the slide rails via a slider. The top surface of the lifting plate is provided with an arched plate. The top surfaces of the two upright plates are jointly provided with a top plate. An electric push rod is vertically arranged on the top surface of the top plate. The piston rod of the electric push rod passes downward through the top plate and connects with the top of the arched plate.

[0020] By adopting the above technical solution, a slide rail, an arched plate, a top plate, and an electric push rod are installed. The electric push rod controls the lifting plate's movement. During drill bit installation, the lifting plate is driven upwards, causing the grinding plate to rise as well. The grinding plate then moves away from the placement hole, providing sufficient operating space for the drill bit to be inserted. After the drill bit is fixed, the electric push rod pushes the lifting plate downwards, causing the grinding plate to descend and contact the drill bit.

[0021] Furthermore, a sealing plate is provided on the upper side of the inner wall of the rotating ring.

[0022] Furthermore, two control levers are symmetrically arranged on the outer wall of the rotating ring.

[0023] In summary, this utility model has the following beneficial effects: This application includes a worktable, a rotating ring, a drive assembly, a first wedge block, a lifting column, second wedge blocks, and a passivation assembly. When machining the drill bit, it is placed vertically in the placement hole, with the bottom of the drill bit contacting the top surface of the base plate. The vertical movement of the lifting column drives several second wedge blocks to move vertically synchronously. The inclined surfaces of the second wedge blocks contact the inclined surfaces of the first wedge blocks. Guided by the inclined surfaces, the first wedge blocks and their connected sliding blocks move horizontally towards the center of the corresponding placement hole. Finally, the side of the sliding block away from the first wedge block abuts tightly against the outer wall of the drill bit. Through the coordinated action of multiple sets of wedge blocks, the drill bits in all placement holes are synchronously and stably fixed. This eliminates the need to fix each drill bit individually, reducing the labor intensity of workers and improving production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the mounting bracket and rotating ring in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the rotating ring structure according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of the rotating ring according to an embodiment of the present invention;

[0028] Figure 5 yes Figure 4 Enlarged view of part A.

[0029] In the diagram: 10. Workbench; 20. Mounting bracket; 21. Support column; 22. Mounting plate; 30. Rotating ring; 31. Placement hole; 32. Sliding block; 33. First wedge block; 34. Connecting plate; 35. Return spring; 36. Control rod; 37. Sealing plate; 40. Base plate; 41. Lifting column; 42. Second wedge block; 43. Column; 44. Threaded rod; 45. Handle; 50. Drive assembly; 51. Drive motor; 52. Active synchronous pulley; 53. Driven synchronous pulley; 54. Synchronous belt; 60. Passivation assembly; 61. Vertical plate; 62. Lifting plate; 63. Grinding plate; 64. Slide rail; 65. Arched plate; 66. Top plate; 67. Electric push rod. Detailed Implementation

[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] like Figure 1-5 As shown in the illustration, this application discloses a drill bit passivation machine, including a worktable 10, a mounting frame 20, a rotating ring 30, a drive assembly 50, a lifting column 41, a base plate 40, and a passivation assembly 60. The mounting frame 20 is disposed on the top surface of the worktable 10, and the rotating ring 30 is vertically rotatably mounted on the mounting frame 20. The drive assembly 50 is disposed on the mounting frame 20 and is used to drive the rotating ring 30 to rotate. The rotating ring 30 has several circumferentially spaced placement holes 31 vertically arranged, and the base plate 40 is disposed on the bottom surface of the rotating ring 30. When the drill bit needs to be processed, it is vertically placed in the placement hole 31, with the bottom of the drill bit contacting the top surface of the base plate 40.

[0032] The inner wall of the rotating ring 30 is provided with a sliding hole corresponding to the placement hole 31. The sliding hole is connected to the corresponding placement hole 31. A sliding block 32 is slidably arranged in the sliding hole. A first wedge block 33 is arranged on the side of the sliding block 32 away from the placement hole 31. The lifting column 41 is vertically slidably arranged on the top surface of the base plate 40. A second wedge block 42 is arranged on the outer wall of the lifting column 41 corresponding to the first wedge block 33. The side of the first wedge block 33 away from the sliding block 32 is an inclined surface. The shortest distance between the upper edge of the inclined surface and the inner wall of the rotating ring 30 is greater than the shortest distance between the lower edge of the inclined surface and the inner wall of the rotating ring 30. The side of the second wedge block 42 away from the lifting column 41 is inclined, and the inclined surface of the second wedge block 42 contacts the inclined surface of the first wedge block 33. The vertical movement of the lifting column 41 drives several second wedge blocks 42 to move vertically synchronously. The inclined surface of the second wedge block 42 contacts the inclined surface of the first wedge block 33, and under the guidance of the inclined surface, pushes the first wedge block 33 and its connected sliding block 32 to move horizontally towards the center of the corresponding placement hole 31. Finally, the side of the sliding block 32 away from the first wedge block 33 is tightly pressed against the outer wall of the drill bit. Through the linkage of multiple sets of wedge blocks, the drill bits in all placement holes 31 are synchronously and securely fixed. This eliminates the need to fix the drill bits one by one, reducing the labor intensity of workers and improving production efficiency. The passivation component 60 is installed on the worktable 10 to passivate the fixed drill bits. A sealing plate 37 is provided on the upper side of the inner wall of the rotating ring 30 to protect the internal components of the rotating ring 30.

[0033] Specifically, four columns 43 arranged in a rectangular array are vertically arranged on the top surface of the base plate 40. Four guide holes arranged in a rectangular array are vertically opened on the lifting column 41. The guide holes are slidably connected to the corresponding columns 43 to ensure the stability of the lifting column 41 during lifting. A threaded rod 44 is vertically rotatably mounted on the bottom surface of the lifting column 41. The base plate 40 is helically connected to the threaded rod 44 through a threaded hole. A handle 45 is provided at the lower end of the threaded rod 44. Rotating the handle 45 drives the threaded rod 44 to rotate. The threaded rod 44 forms a transmission engagement with the base plate 40 through a threaded pair. When the threaded rod 44 rotates, it undergoes a vertical displacement relative to the base plate 40 along its axial direction, thereby driving the lifting column 41, which is fixedly connected to the top of the threaded rod 44, to synchronously complete the lifting action. Two control levers 36 are symmetrically arranged on the outer wall of the rotating ring 30. When the operator rotates the handle 45 with one hand, the other hand holds the control lever 36 to prevent the rotating ring 30 from rotating, facilitating the rotation of the handle 45 to drive the threaded rod 44 to rotate relative to the rotating ring 30.

[0034] In the setup, connecting plates 34 are vertically mounted on both sides of the sliding block 32. A return spring 35 is installed between the connecting plate 34 and the inner wall of the rotating ring 30. The movement of the sliding block 32 synchronously drives the connecting plate 34 to compress the return spring 35, allowing the return spring 35 to store elastic potential energy. After the drill bit finishes processing, the lifting column 41 drives the second wedge block 42 to reset downwards, releasing the thrust on the first wedge block 33. At this time, the return spring 35 releases its elastic potential energy, pushing the connecting plate 34 outwards in the opposite direction. The connecting plate 34 drives the sliding block 32 to slide along the sliding hole to the initial position, completing the automatic reset of the sliding block 32 and preparing it for the next loading. This design achieves the reciprocating motion of the sliding block 32 through the conversion of reset elastic potential energy, requiring no additional power source, and is compact and reliable in operation.

[0035] In a specific configuration, the mounting frame 20 includes four vertically arranged support columns 21 in a rectangular array. A mounting plate 22 is commonly mounted on the upper end of the four support columns 21. A circular opening is provided on the mounting plate 22, and the rotating ring 30 is rotatably connected to this opening to ensure the stability of the rotating ring 30's rotation. The drive assembly 50 includes a drive motor 51 vertically mounted on the bottom surface of the mounting plate 22. The output axis of the drive motor 51 passes through the mounting plate 22 and is fitted with a driving synchronous pulley 52. ​​A driven synchronous pulley 53 is fixedly fitted onto the rotating ring 30. The driven synchronous pulley 53 and the driving synchronous pulley 52 are connected by a synchronous belt 54. The drive motor 51 drives the driving synchronous pulley 52 to rotate, thereby causing the driven synchronous pulley 53 and the rotating ring 30 to rotate via the synchronous belt 54.

[0036] The passivation assembly 60 includes two vertical plates 61 spaced apart on the worktable 10, with a lifting plate 62 positioned between the two plates 61. A grinding plate 63 is mounted on the bottom surface of the lifting plate 62. A drive motor 51 drives an active synchronous pulley 52, a driven synchronous pulley 53, and a rotating ring 30 to rotate, causing several drill bits to rotate relative to the grinding plate 63 for grinding. Two vertical slide rails 64 are vertically mounted on adjacent sides of the two vertical plates 61. The lifting plate 62 is slidably connected to the slide rails 64 via a slider. An arched plate 65 is mounted on the top surface of the lifting plate 62. A top plate 66 is shared by the two vertical plates 61. An electric push rod 67 is vertically mounted on the top surface of the top plate 66. The piston rod of the electric push rod 67 passes downward through the top plate 66 and connects to the top of the arched plate 65. The electric push rod 67 controls the lifting of the lifting plate 62. When installing drill bits, the lifting plate 62 is driven to rise, causing the grinding plate 63 to rise as well. The grinding plate 63 then moves away from the placement hole 31, providing sufficient operating space for inserting the drill bits. After the drill bit is fixed, the electric push rod 67 pushes the lifting plate 62 down, which in turn drives the grinding plate 63 down to contact the drill bit.

[0037] The operating principle of the drill bit passivation machine in this embodiment is as follows: The drill bit is placed vertically in the placement hole 31, with the bottom of the drill bit contacting the top surface of the base plate 40. Rotating the handle 45 drives the threaded rod 44 to rotate, causing the threaded rod 44, the lifting column 41, and the second wedge block 42 to rise, pushing the first wedge block 33 and its connected sliding block 32 to move horizontally towards the center of the corresponding placement hole 31. The side of the sliding block 32 away from the first wedge block 33 is tightly pressed against the outer wall of the drill bit, fixing the drill bit in place. Then, the drive motor 51 is started to drive the active synchronous pulley 52 to rotate, thereby driving the driven synchronous pulley 53 and the rotating ring 30 to rotate via the synchronous belt 54, causing several drill bits to rotate around the center line of the rotating ring 30. The electric push rod 67 is activated to push the lifting plate 62 down, causing the grinding plate 63 to descend and contact the rotating drill bit, thus grinding and passivating it.

[0038] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A drill bit dulling machine characterized by: Includes a workbench (10), the top surface of which is provided with a mounting bracket (20), a rotating ring (30) is vertically rotatably mounted on the mounting bracket (20), a driving assembly (50) for driving the rotating ring (30) to rotate is provided on the mounting bracket (20), the rotating ring (30) is vertically provided with a plurality of circumferentially spaced placement holes (31), the inner wall of the rotating ring (30) is provided with sliding holes corresponding to the placement holes (31), the sliding holes are connected to the corresponding placement holes (31), and are slidably disposed within the sliding holes. There is a sliding block (32), and a first wedge block (33) is provided on the side of the sliding block (32) away from the placement hole (31). A base plate (40) is provided on the bottom surface of the rotating ring (30). A lifting column (41) is vertically slidably provided on the top surface of the base plate (40). A second wedge block (42) is provided on the outer wall of the lifting column (41) corresponding to the first wedge block (33). The inclined surface of the second wedge block (42) is in contact with the inclined surface of the first wedge block (33). A passivation component (60) is also provided on the worktable (10).

2. A drill bit blunting machine according to claim 1, characterised in that: The top surface of the base plate (40) is vertically provided with four columns (43) arranged in a rectangular array. The lifting column (41) is vertically provided with four guide holes arranged in a rectangular array. The guide holes are slidably connected to the corresponding columns (43).

3. The drill bit blunting machine of claim 1, wherein: The lifting column (41) is vertically rotatably provided with a threaded rod (44) on its bottom surface. The base plate (40) is helically connected to the threaded rod (44) through a threaded hole. The lower end of the threaded rod (44) is provided with a handle (45).

4. The drill bit blunting machine of claim 1, wherein: The sliding block (32) is provided with connecting plates (34) on both sides, and a return spring (35) is provided between the connecting plate (34) and the inner wall of the rotating ring (30).

5. The drill bit blunting machine of claim 1, wherein: The mounting frame (20) includes four vertically arranged support columns (21) in a rectangular array. The upper ends of the four support columns (21) are provided with a mounting plate (22). The mounting plate (22) has a circular opening. The rotating ring (30) is rotatably connected to the circular opening.

6. A drill bit blunting machine according to claim 5, wherein: The drive assembly (50) includes a drive motor (51) vertically mounted on the bottom surface of the mounting plate (22). The output axis of the drive motor (51) passes through the mounting plate (22) and is provided with an active synchronous pulley (52). A driven synchronous pulley (53) is fixedly sleeved on the rotating ring (30). The driven synchronous pulley (53) and the active synchronous pulley (52) are connected by a synchronous belt (54).

7. The drill bit blunting machine of claim 1, wherein: The passivation component (60) includes upright plates (61) spaced apart on the worktable (10), a lifting plate (62) is provided between the two upright plates (61), and a grinding plate (63) is provided on the bottom surface of the lifting plate (62).

8. A drill bit blunting machine according to claim 7, characterised in that: Two vertical slide rails (64) are vertically arranged on one side of each of the two upright plates (61). The lifting plate (62) is slidably connected to the slide rails (64) by a slider. An arched plate (65) is provided on the top surface of the lifting plate (62). A top plate (66) is provided on the top surface of the two upright plates (61). An electric push rod (67) is vertically arranged on the top surface of the top plate (66). The piston rod of the electric push rod (67) passes downward through the top plate (66) and connects to the top of the arched plate (65).

9. The drill bit blunting machine of claim 1, wherein: A sealing plate (37) is provided on the upper side of the inner wall of the rotating ring (30).

10. A drill bit passivation machine according to claim 3, characterized in that: Two control rods (36) are symmetrically arranged on the outer wall of the rotating ring (30).

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