Small drill bit tool setting structure

Abstract

The invention belongs to the technical field of drill bit grinding equipment, and particularly relates to a small drill bit tool setting structure which comprises a base, the base comprises a clamp sleeving seat and a distance adjusting seat, a clamp is arranged in the middle of the clamp sleeving seat, and a distance adjusting device corresponding to the clamp is arranged in the middle of the distance adjusting seat. A drill bit clamping piece device is arranged between the distance adjusting seats, adjusting devices for controlling the drill bit clamping piece device to clamp and loosen a drill bit are arranged on the distance adjusting seats, and the small drill bit tool setting structure is simple and reasonable in structure, long in service life and accurate in tool setting.

Description

Technical Field

[0001] The invention belongs to the technical field of drill grinding equipment, in particular to a small drill bit setting structure. Background Art

[0002] After a small drill bit is worn, it needs to be ground, which can greatly extend the service life of the drill bit. Before a drill grinder grinds the drill bit, the small drill bit needs to be set by a tool so that it can be ground more accurately and the grinding accuracy can be improved. However, the tool setting device in the prior art cannot achieve good grinding accuracy and tool setting efficiency when setting drill bits of different models. At the same time, the tool setting device in the prior art can only adapt to drill bits of one diameter specification, and the scope of application is relatively small.

[0003] The domestic database has published the application number: 202222032956 .2. Patent name: An invention of a tool setting structure for a small twist drill, which includes a seat body, a clamp sleeve seat and a distance adjustment seat are provided on the seat body, a clamp is provided in the middle of the clamp sleeve seat, and a distance adjustment device corresponding to the clamp is provided in the middle of the distance adjustment seat, an L-shaped hinged plate is provided on the upper end of the distance adjustment seat, and elastic centering plates are respectively provided on the left and right sides of the distance adjustment seat, the ends of the two centering plates that are close to each other are in contact with each other, and a movable plate is hinged on the L-shaped hinged plate, and the ends of the two centering plates that are close to each other can be controlled to move away from each other by rotating the movable plate, a positioning block is provided on the clamp sleeve seat, and the positioning block extends out of a side surface of the clamp sleeve seat, and a positioning groove adapted to the positioning block is provided on the clamp, and a guide bevel is provided on the positioning block. The elastic centering plate of the above structure will cause elastic failure and deformation due to long-term use, and the elastic centering plate is more troublesome to replace, which is time-consuming and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to provide a small drill bit tool setting structure which has a simple and reasonable structure, a long service life and accurate tool setting.

[0005] The object of the present invention is achieved in that: A small drill bit tool setting structure comprises a base, the base body comprises a clamp sleeve seat and a distance adjustment seat, a clamp is arranged in the middle of the clamp sleeve seat, a distance adjustment device corresponding to the clamp is arranged in the middle of the distance adjustment seat, a drill bit clamping device is arranged between the distance adjustment seats, and an adjustment device for controlling the drill bit clamping device to clamp and release the drill bit is arranged on the distance adjustment seat.

[0006] In the above-mentioned small drill bit tool setting structure, the drill bit clamping device includes a left clamping piece, a right clamping piece and a tension spring. The left clamping piece and the right clamping piece are connected to the distance adjustment seat through a rotating column, and the two ends of the tension spring are respectively connected to the upper end parts of the left clamping piece and the right clamping piece. The lower ends of the left clamping piece and the right clamping piece are always away from each other due to the tension of the tension spring, and the upper ends of the left clamping piece and the right clamping piece are always close to each other due to the tension of the tension spring, and the upper ends of the left clamping piece and the right clamping piece are provided with notches for use with the adjustment device.

[0007] In the above-mentioned small drill bit setting structure, the left clamp and the right clamp are C-shaped structures, and connecting protrusions are opened below the upper ends of the left clamp and the right clamp, and connecting holes for inserting the rotating column are provided on the connecting protrusions, and drill clamps are provided at the lower ends of the left clamp and the right clamp, and the drill clamps are provided with inclined surfaces.

[0008] In the above-mentioned small drill bit setting structure, the adjustment device includes a lifting seat, a lifting rod, a guide rod and an adjustment block. The adjustment block is arranged on one side of the lifting seat and is located on the gap of the left clamp and the right clamp. The lifting seat is connected to the distance adjustment seat through the guide rod and the lifting rod, and a knob is arranged on the lifting rod. By rotating the knob, the lifting seat can be controlled to move up and down along the guide rod, and the lower ends of the left clamp and the right clamp can be controlled to clamp or release the drill bit.

[0009] In the above-mentioned small drill bit tool setting structure, a spring is sleeved on the guide rod.

[0010] In the above-mentioned small drill bit tool setting structure, the notch is a U-shaped structure with an inclined opening.

[0011] In the above-mentioned small drill bit setting structure, the adjustment block is a trapezoidal structure, and its small end faces downward to be used in conjunction with the notch, and the inclination angles of the two side surfaces of the adjustment block are greater than the inclination angles of the two side surfaces of the notch.

[0012] In the above-mentioned small drill bit tool setting structure, the distance adjustment device includes a fixed sleeve, an adjustment rod and an adjustment handle. The fixed sleeve is fixed to the middle part of the distance adjustment seat, and its front and rear end portions extend out of the front and rear side surfaces of the distance adjustment seat respectively. The adjustment rod is inserted into the fixed sleeve, and its two end portions extend out of the two ends of the fixed sleeve respectively. The adjustment handle is screwed on the adjustment rod and is arranged away from the clamp sleeve seat.

[0013] In the above-mentioned small drill bit tool setting structure, a tool setting top block is arranged at one end of the adjustment rod close to the clamp sleeve seat.

[0014] In the above-mentioned small drill bit tool setting structure, a positioning block is arranged on the upper side of the clamp sleeve seat, and a positioning groove used in conjunction with the positioning block is arranged on the clamp.

[0015] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects: The clamp of the present invention is connected with the clamp sleeve seat, and a positioning block and a positioning groove are provided between the clamp and the clamp sleeve seat, so as to facilitate the connection and positioning of the two. When the clamp is sleeved in the clamp sleeve seat, the drill bit contacts the distance adjusting device, and the distance adjusting device can control the length of the drill bit. Then, by rotating the knob, the knob and the lifting rod are fixedly connected, and the knob will move downward and push the lifting seat to move downward, and the lifting seat will drive the adjusting block to move downward, and the lower end of the adjusting block will be embedded in the notch. When the adjusting block moves downward, the upper ends of the left clamp and the right clamp will be pushed outward, and the drill clamps at the lower ends of the left clamp and the right clamp will approach each other to clamp the drill bit, ensuring that the drill bit is aligned with the center, and then the clamp is locked to ensure that the clamp clamps the drill bit. Finally, the knob is rotated and the knob moves upward. When the adjusting block moves upward under the action of the spring, the drill clamps move away from each other under the action of the tension spring to release the drill bit. The overall operation is simple, easy to use, has a long service life, and easy to replace accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the clamp-free socket of the present invention.

[0018] Figure 3 It is a cross-sectional view of the distance adjustment seat and the distance adjustment device of the present invention.

[0019] Figure 4 It is an exploded view of the drill bit clamping device of the present invention.

[0020] Base; 2-clamp socket; 3-distance adjustment seat; 4-drill clamp device; 5-adjustment device; 21-clamp; 31-distance adjustment device; 41-left clamp; 42-right clamp; 43-tension spring; 44-rotation column; 45-notch; 47-connecting convex piece; 48-connecting hole; 49-drill clamp; 51-lifting seat; 52-lifting rod; 53-guide rod; 54-adjustment block; 55-knob; 56-spring; 211-positioning block; 212-positioning groove; 311-fixed sleeve; 312-adjusting rod; 313-adjusting handle; 314-tool setting top block; 491-inclined surface. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments of the present invention: like Figure 1-Figure 4As shown: a small drill bit tool setting structure, including a base 1, the base body 1 includes a clamp sleeve seat 2 and a distance adjustment seat 3, a clamp 21 is arranged in the middle of the clamp sleeve seat 2, and a distance adjustment device 31 corresponding to the clamp 21 is arranged in the middle of the distance adjustment seat 3, a drill clamp device 4 is arranged between the distance adjustment seats 3, and an adjustment device 5 for controlling the drill clamp device 4 to clamp and release the drill is arranged on the distance adjustment seat 3, the drill clamp device 4 includes a left clamp 41, a right clamp 42 and a tension spring 43, the left clamp 41 and the right clamp 42 are connected to the distance adjustment seat 3 through a rotating column 44, and the two ends of the tension spring 43 are respectively connected to the upper end of the left clamp 41 and the right clamp 42, and the lower end of the left clamp 41 and the right clamp 42 is connected through The tension of the tension spring 43 always keeps them away from each other, and the upper ends of the left clamp 41 and the right clamp 42 always approach each other due to the tension of the tension spring 43, and the upper ends of the left clamp 41 and the right clamp 42 are provided with notches 45 used in conjunction with the adjustment device 5, the left clamp 41 and the right clamp 42 are C-shaped structures, and connecting protrusions 47 are provided below the upper ends of the left clamp 41 and the right clamp 42, and connecting holes 48 for inserting the rotating column 44 are provided on the connecting protrusions 47, and drill clamps 49 are provided at the lower ends of the left clamp 41 and the right clamp 42, and the drill clamps 49 are provided with inclined surfaces 491, specifically, in order to reduce the contact area between the drill clamp and the drill bit and increase the clamping force between the drill clamp and the drill bit, and the left clamp and the right clamp swing around the rotating column.

[0022] In the above-mentioned small drill bit setting structure, the adjustment device 5 includes a lifting seat 51, a lifting rod 52, a guide rod 53 and an adjustment block 54. The adjustment block 54 is arranged on one side of the lifting seat 51 and is located on the gap 45 of the left clamping piece 41 and the right clamping piece 42. The lifting seat 51 is connected to the distance adjustment seat 3 through the guide rod 53 and the lifting rod 52, and a knob 55 is arranged on the lifting rod 52. By rotating the knob 55, the lifting seat 51 can be controlled to move up and down along the guide rod 53, and the lower ends of the left clamping piece 41 and the right clamping piece 42 can be controlled to clamp or release the drill bit. The guide rod 53 is sleeved with a spring 56. The gap 45 is The opening is an inclined U-shaped structure, the adjusting block 54 is a trapezoidal structure, and its small end is downward and used in conjunction with the notch 45, the inclination angles of the two side surfaces of the adjusting block 54 are greater than the inclination angles of the two side surfaces of the notch 45, specifically, there are two guide rods, and the designed spring is always pressed under the lifting seat, when the knob is loosened, the lifting seat moves upward with the elastic force of the spring, and controls the adjusting block to move upward, and the adjusting block gradually moves away from the notch, by rotating the knob, the knob and the lifting rod are fixedly connected, the lifting rod is provided with a thread, and the distance adjustment seat is provided with a threaded hole used in conjunction with the lifting rod, and the adjusting block is provided with a through hole for the lifting rod to pass through.

[0023] In the above-mentioned small drill bit tool setting structure, the distance adjustment device 31 includes a fixed sleeve 311, an adjustment rod 312 and an adjustment handle 313. The fixed sleeve 311 is fixed to the middle part of the distance adjustment seat 3, and its front and rear end parts extend out of the front and rear side surfaces of the distance adjustment seat 3 respectively. The adjustment rod 312 is inserted into the fixed sleeve 311, and its two end parts extend out of the two ends of the fixed sleeve 311 respectively. The adjustment handle 313 is screwed on the adjustment rod 312 and is arranged away from the clamp sleeve seat 2. The end of the adjustment rod 312 close to the clamp sleeve seat 2 is provided with a tool setting top block 314. Specifically, the outer diameter of the tool setting top block is larger than the outer diameter of the adjustment rod. This is to facilitate the drill bit to be pushed onto the tool setting top block.

[0024] In the above-mentioned small drill bit tool setting structure, a positioning block 211 is provided on the upper side of the clamp sleeve 2, and a positioning groove 212 used in conjunction with the positioning block 211 is provided on the clamp 21. A guide bevel is provided on the positioning block, which can facilitate the operator to quickly position the clamp and the clamp sleeve. The clamp is a prior art and will not be described here.

[0025] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A small drill bit setting structure, comprising a base (1), characterized in that: The base (1) comprises a clamp sleeve seat (2) and a distance adjustment seat (3); a clamp (21) is arranged in the middle of the clamp sleeve seat (2); a distance adjustment device (31) corresponding to the clamp (21) is arranged in the middle of the distance adjustment seat (3); a drill clamp device (4) is arranged between the distance adjustment seats (3); and an adjustment device (5) for controlling the drill clamp device (4) to clamp and release the drill bit is arranged on the distance adjustment seat (3).

2. The small drill bit tool setting structure according to claim 1, characterized in that: The drill bit clamp device (4) comprises a left clamp (41), a right clamp (42) and a tension spring (43); the left clamp (41) and the right clamp (42) are connected to the distance adjustment seat (3) via a rotating column (44); and the two ends of the tension spring (43) are respectively connected to the upper ends of the left clamp (41) and the right clamp (42); the lower ends of the left clamp (41) and the right clamp (42) are always separated from each other by the tension of the tension spring (43); the upper ends of the left clamp (41) and the right clamp (42) are always approached to each other by the tension of the tension spring (43); and the upper ends of the left clamp (41) and the right clamp (42) are provided with notches (45) for use with the adjustment device (5).

3. The small drill bit tool setting structure according to claim 2 is characterized in that: The left clamp (41) and the right clamp (42) are C-shaped structures, and a connecting protrusion (47) is provided below the upper end of the left clamp (41) and the right clamp (42), and a connecting hole (48) is provided on the connecting protrusion (47) for inserting the rotating column (44), and a drill clamp (49) is provided at the lower end of the left clamp (41) and the right clamp (42), and the drill clamp (49) is provided with an inclined surface (491).

4. The small drill bit tool setting structure according to claim 2, characterized in that: The adjusting device (5) comprises a lifting seat (51), a lifting rod (52), a guide rod (53) and an adjusting block (54); the adjusting block (54) is arranged on one side of the lifting seat (51) and is located on the notches (45) of the left clamping piece (41) and the right clamping piece (42); the lifting seat (51) is connected to the distance adjusting seat (3) via the guide rod (53) and the lifting rod (52); a knob (55) is arranged on the lifting rod (52); by rotating the knob (55), the lifting seat (51) can be controlled to move up and down along the guide rod (53), and the lower ends of the left clamping piece (41) and the right clamping piece (42) can be controlled to clamp or release the drill bit.

5. The small drill bit tool setting structure according to claim 4 is characterized in that: The guide rod (53) is sleeved with a spring (56).

6. The small drill bit tool setting structure according to claim 2, characterized in that: The notch (45) is a U-shaped structure with an inclined opening.

7. The small drill bit tool setting structure according to claim 4, characterized in that: The adjusting block (54) is of a trapezoidal structure, with its small end facing downwards for use in conjunction with the notch (45), and the inclination angles of the two side surfaces of the adjusting block (54) are greater than the inclination angles of the two side surfaces of the notch (45).

8. The small drill bit tool setting structure according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7, characterized in that: The distance adjustment device (31) comprises a fixing sleeve (311), an adjustment rod (312) and an adjustment handle (313); the fixing sleeve (311) is fixed to the middle of the distance adjustment seat (3), and its front and rear ends respectively extend out of the front and rear side surfaces of the distance adjustment seat (3); the adjustment rod (312) is inserted into the fixing sleeve (311), and its two ends respectively extend out of the two ends of the fixing sleeve (311); the adjustment handle (313) is screwed onto the adjustment rod (312) and is arranged away from the clamp sleeve seat (2).

9. The small drill bit tool setting structure according to claim 8, characterized in that: A tool setting top block (314) is provided at one end of the adjustment rod (312) close to the clamp sleeve seat (2).

10. The small drill bit tool setting structure according to claim 8, characterized in that: A positioning block (211) is provided on the upper side of the clamp sleeve seat (2), and a positioning groove (212) for use in conjunction with the positioning block (211) is provided on the clamp (21).

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