Lathe drill bit fixing mechanism

Abstract

The utility model discloses a lathe drill bit fixing mechanism which comprises a base and a drill bit, the drill bit is located above the base, a fluted disc is arranged on the base, a rack is connected with a gear in a meshed mode, clamping blocks are arranged above the fluted disc, the number of the clamping blocks is three, and the three clamping blocks are distributed in an annular mode. Tooth blocks are arranged below the three sets of clamping blocks, the clamping blocks are connected with the fluted disc in a meshed mode through the tooth blocks, the drill bit is located among the three sets of clamping blocks, sliding grooves are formed in the base, the number of the sliding grooves is three, the three sets of sliding grooves correspond to the clamping blocks, and the clamping blocks are connected with the base in a sliding mode through the sliding grooves. The outer walls of drill bits of different models are clamped by arranging the base, the clamping blocks and the like, the distance between the three sets of clamping blocks can be adjusted according to actual use requirements under adjustment of the fluted disc, the distance between the two sets of mounting rods is adjusted by arranging the bidirectional lead screw, and the clamping blocks are assisted in clamping the drill bits.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit fixing, in particular to a lathe drill bit fixing mechanism. Background Art

[0002] Lathe is the most important type of metal cutting machine tool. In general machine manufacturing factories, lathes are the most numerous and are also called mother machines. At the same time, drills, reamers, reamers, taps, dies and knurling tools can also be used on lathes for corresponding processing. When the lathe drill bit is installed on the spindle, a fixing mechanism is required to fix the drill bit.

[0003] There are many specifications and models of drill bits used in the prior art. A fixed fixing structure is required for the installation of drill bits of different models. A single fixing mechanism has a narrow application range. Different fixing structures need to be replaced during the processing, which is inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a lathe drill bit fixing mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lathe drill bit fixing mechanism, comprising a base and a drill bit, the drill bit is located above the base, the base is provided with a toothed disk, a clamping block is provided above the toothed disk, the number of the clamping blocks is set in three groups, the three groups of clamping blocks are distributed in a ring shape, tooth blocks are provided below the three groups of clamping blocks, the clamping blocks are meshed and connected with the toothed disk through the tooth blocks, the drill bit is located between the three groups of clamping blocks, the base is provided with sliding grooves, the number of the sliding grooves is set in three groups, the three groups of sliding grooves are arranged corresponding to the clamping blocks, and the clamping blocks are slidably connected with the base through the sliding grooves.

[0006] As a further preferred embodiment of the present technical solution, the toothed disc is rotatably connected to the base via an installation shaft, a gear is sleeved on the installation shaft, a rack is provided in the base, the rack is meshingly connected to the gear, a cylinder is provided in the base, the rack is slidably connected to the base, and the rack is connected to the output end of the cylinder plug rod.

[0007] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed slots are provided on both sides of the drill bit, two groups of symmetrically distributed mounting rods are provided on the base, the mounting rods are slidably connected to the base, a bidirectional screw rod is provided in the base, a first bevel gear is sleeved on the bidirectional screw rod, a second bevel gear is provided in the base, a first motor is provided in the base, a clamping tube is provided on the mounting rod, the clamping tube is arranged corresponding to the slot, and the clamping tube is slidably connected to the drill bit through the slot.

[0008] As a further preferred embodiment of the present technical solution, a push plug is provided in the clamping tube, the push plug is slidably connected to the clamping tube, the clamping tube and the push plug are filled with oil, two groups of symmetrically distributed sliding rods are provided on the clamping tube, the push plug is slidably sleeved with the sliding rods, two groups of symmetrically distributed mounting brackets are provided on the clamping tube, the push plug is slidably connected to the mounting bracket, a threaded rod is provided in the mounting bracket, and a second motor is provided on the mounting bracket.

[0009] As a further preferred embodiment of the present technical solution, a spring is provided on the sliding rod, and the two ends of the spring are respectively fixedly connected to the push plug and the clamping tube, the two ends of the threaded rod respectively pass through the mounting frame and are rotatably connected to the mounting frame, the threaded rod passes through the push plug and is threadedly connected to the push plug, and the threaded rod is connected to the output end of the second motor.

[0010] As a further preferred embodiment of the present technical solution, the second bevel gear is meshedly connected with the first bevel gear, the second bevel gear is connected to the output end of the first motor through a rotating shaft, the bidirectional screw is rotatably connected to the base through a bearing, and both ends of the bidirectional screw respectively pass through two sets of mounting rods and are threadedly connected to the mounting rods.

[0011] The utility model provides a lathe drill bit fixing mechanism, which has the following beneficial effects:

[0012] (1) The utility model can clamp the outer wall of drill bits of different models by providing a base and clamping blocks, and the distance between the three groups of clamping blocks can be adjusted according to actual use requirements under the adjustment of the toothed disc. The distance between the two groups of mounting rods can be adjusted by providing a bidirectional screw. The auxiliary clamping block clamps the drill bit, and the distance between the two groups of mounting rods can be adjusted under the adjustment of the bidirectional screw, thereby expanding the application scope of the fixing mechanism. When in use, the drill bit is placed on the base and located between the three groups of clamping blocks. The rack is driven to slide by the cylinder, and the mounting shaft is rotated by the gear. The mounting shaft drives the toothed disc to rotate. Under the limiting action of the slide groove, the three groups of clamping blocks are pushed inward synchronously to clamp the outer wall of the drill bit. Then, the first motor is started to drive the second bevel gear to rotate, and the bidirectional screw is rotated by the first bevel gear. Under the limiting action of the base, the two groups of mounting rods are synchronously slid inward, and the drill bit is clamped by the slot. The clamping mechanism is not limited to a specific drill bit size and model, and positioning is fast and accurate.

[0013] (2) The utility model reinforces and fixes the drill bit by means of a clamping tube and a push plug auxiliary clamping block, thereby ensuring the stability of the drill bit during use. After the clamping tube is clamped with the drill bit through the clamping groove, the second motor is turned on to drive the threaded rod to rotate, and the push plug is pushed toward the drill bit under the limiting effect of the mounting frame. During the pushing process of the push plug, the oil is squeezed to make the clamping tube expand inward and outward respectively, squeezing the inner wall of the clamping groove. The auxiliary clamping block firmly fixes the drill bit, thereby ensuring that the drill bit is stable and firm during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the drill bit of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the push plug of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the clamping block of the utility model;

[0018] Figure 5 For the utility model Figure 4 -A magnified view of the structure;

[0019] In the figure: 1. base; 2. drill bit; 3. toothed disc; 4. clamping block; 5. tooth block; 6. slide groove; 7. mounting shaft; 8. gear; 9. rack; 10. cylinder; 11. mounting rod; 12. bidirectional screw rod; 13. first bevel gear; 14. second bevel gear; 15. first motor; 16. slot; 17. clamping tube; 18. push plug; 19. oil; 20. mounting frame; 21. slide rod; 22. spring; 23. threaded rod; 24. second motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 , Figure 4 and Figure 5As shown, in this embodiment, a lathe drill bit fixing mechanism includes a base 1 and a drill bit 2, the drill bit 2 is located above the base 1, a toothed disc 3 is provided on the base 1, a clamping block 4 is provided above the toothed disc 3, the number of the clamping blocks 4 is set in three groups, the three groups of clamping blocks 4 are distributed in an annular manner, tooth blocks 5 are provided below the three groups of clamping blocks 4, the clamping blocks 4 are meshed and connected with the toothed disc 3 through the tooth blocks 5, the drill bit 2 is located between the three groups of clamping blocks 4, a slide groove 6 is provided on the base 1, the number of the slide groove 6 is set in three groups, the three groups of slide grooves 6 are arranged corresponding to the clamping blocks 4, the clamping block 4 is slidably connected with the base 1 through the slide groove 6, the toothed disc 3 is rotatably connected with the base 1 through the mounting shaft 7, the mounting shaft 7 is sleeved with a gear 8, and the base 1 is provided with a plurality of gears 8. A rack 9 is provided, which is meshed with a gear 8. A cylinder 10 is provided in the base 1, and the rack 9 is slidably connected to the base 1. The rack 9 is connected to the output end of the plug rod of the cylinder 10. Two groups of symmetrically distributed grooves 16 are provided on both sides of the drill bit 2. Two groups of symmetrically distributed mounting rods 11 are provided on the base 1, and the mounting rods 11 are slidably connected to the base 1. A bidirectional screw rod 12 is provided in the base 1, and a first bevel gear 13 is sleeved on the bidirectional screw rod 12. A second bevel gear 14 is provided in the base 1. A first motor 15 is provided in the base 1. A clamping tube 17 is provided on the mounting rod 11, and the clamping tube 17 is correspondingly arranged with the clamping groove 16. The clamping tube 17 is slidably connected to the drill bit 2 through the clamping groove 16.

[0022] The outer wall of drill bits 2 of different types can be clamped by setting the base 1 and the clamping block 4, and the distance between the three groups of clamping blocks 4 can be adjusted according to actual use requirements under the adjustment of the toothed disc 3. The distance between the two groups of mounting rods 11 can be adjusted by setting the bidirectional screw rod 12. The auxiliary clamping block 4 clamps the drill bit 2, and the distance between the two groups of mounting rods 11 can be adjusted under the adjustment of the bidirectional screw rod 12, thereby expanding the application range of the fixing mechanism. When in use, the drill bit 2 is placed on the base 1 and located between the three groups of clamping blocks 4, and the cylinder is used to adjust the distance between the two groups of mounting rods 11. 10 drives the rack 9 to slide, and cooperates with the gear 8 to rotate the installation shaft 7, and the installation shaft 7 drives the toothed disc 3 to rotate. Under the limiting action of the slide groove 6, the three groups of clamping blocks 4 are synchronously pushed inward to clamp the outer wall of the drill bit 2. Then the first motor 15 is started to drive the second bevel gear 14 to rotate, and cooperates with the first bevel gear 13 to rotate the bidirectional screw rod 12. Under the limiting action of the base 1, the two groups of installation rods 11 are synchronously slid inward, and cooperate with the slot 16 to clamp the drill bit 2. The clamping mechanism is not limited to a specific size and model of the drill bit 2, and the positioning is fast and accurate.

[0023] like Figure 2 and Figure 3As shown, a push plug 18 is provided in the clamping tube 17, and the push plug 18 is slidably connected to the clamping tube 17. The clamping tube 17 and the push plug 18 are filled with oil 19. Two sets of symmetrically distributed slide bars 21 are provided on the clamping tube 17, and the push plug 18 is slidably sleeved with the slide bars 21. Two sets of symmetrically distributed mounting brackets 20 are provided on the clamping tube 17, and the push plug 18 is slidably connected to the mounting bracket 20. A threaded rod 23 is provided in the mounting bracket 20, and a second motor 24 is provided on the mounting bracket 20. A spring 22 is provided on the slide bar 21, and the two ends of the spring 22 are respectively connected to the push plug 18 and the clamping tube 17 is fixedly connected, both ends of the threaded rod 23 respectively penetrate the mounting frame 20 and are rotatably connected to the mounting frame 20, the threaded rod 23 penetrates the push plug 18 and is threadedly connected to the push plug 18, the threaded rod 23 is connected to the output end of the second motor 24, the second bevel gear 14 is meshed with the first bevel gear 13, the second bevel gear 14 is connected to the output end of the first motor 15 through a rotating shaft, the bidirectional lead screw 12 is rotatably connected to the base 1 through a bearing, and both ends of the bidirectional lead screw 12 respectively penetrate the two sets of mounting rods 11 and are threadedly connected to the mounting rods 11.

[0024] The drill bit 2 is reinforced and fixed by the clamping tube 17 and the push plug 18, and the auxiliary clamping block 4 is used to ensure the stability of the drill bit 2 during use; after the clamping tube 17 is clamped with the drill bit 2 through the clamping groove 16, the second motor 24 is turned on to drive the threaded rod 23 to rotate, and the push plug 18 is pushed toward the drill bit 2 under the limiting effect of the mounting frame 20. During the pushing process of the push plug 18, the oil 19 is squeezed to make the clamping tube 17 expand inwardly and outwardly respectively, and the inner wall of the clamping groove 16 is squeezed. The auxiliary clamping block 4 firmly fixes the drill bit 2 to ensure that the drill bit 2 is stable and firm during use.

[0025] The utility model provides a lathe drill bit fixing mechanism, and the specific working principle is as follows: when in use, the drill bit 2 is placed on the base 1 and located between the three groups of clamping blocks 4, the rack 9 is driven to slide by the cylinder 10, the mounting shaft 7 is rotated in cooperation with the gear 8, the mounting shaft 7 drives the toothed disc 3 to rotate, and the three groups of clamping blocks 4 are synchronously pushed inward under the limiting effect of the slide groove 6 to clamp the outer wall of the drill bit 2, and then the first motor 15 is started to drive the second bevel gear 14 to rotate, and the bidirectional screw rod 12 is rotated in cooperation with the first bevel gear 13, and the two groups of mounting rods 11 are synchronously slid inward under the limiting effect of the base 1, and the drill bit 2 is clamped in cooperation with the card slot 16, The clamping mechanism is not limited to a specific size and model of the drill bit 2, and has fast and accurate positioning. The drill bit 2 is reinforced and fixed by the clamping tube 17 and the push plug 18, and the auxiliary clamping block 4 is used to ensure the stability of the drill bit 2 during use. After the clamping tube 17 is clamped with the drill bit 2 through the clamping groove 16, the second motor 24 is turned on to drive the threaded rod 23 to rotate, and the push plug 18 is pushed toward the drill bit 2 under the limiting effect of the mounting frame 20. During the pushing process of the push plug 18, the oil 19 is squeezed to make the clamping tube 17 expand inwardly and outwardly respectively, and the inner wall of the clamping groove 16 is squeezed. The auxiliary clamping block 4 firmly fixes the drill bit 2, and ensures that the drill bit 2 is stable and firm during use.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lathe drill bit fixing mechanism, comprising a base (1) and a drill bit (2), characterized in that: The drill bit (2) is located above the base (1); a toothed disc (3) is provided on the base (1); a clamping block (4) is provided above the toothed disc (3); the number of the clamping blocks (4) is set to three groups; the three groups of clamping blocks (4) are arranged in a ring shape; tooth blocks (5) are provided below the three groups of clamping blocks (4); the clamping blocks (4) are meshed and connected to the toothed disc (3) via the tooth blocks (5); the drill bit (2) is located between the three groups of clamping blocks (4); a slide groove (6) is provided on the base (1); the number of the slide groove (6) is set to three groups; the three groups of slide grooves (6) are arranged corresponding to the clamping blocks (4); the clamping blocks (4) are slidably connected to the base (1) via the slide groove (6).

2. A lathe drill bit fixing mechanism according to claim 1, characterized in that: The toothed disc (3) is rotatably connected to the base (1) via a mounting shaft (7); a gear (8) is sleeved on the mounting shaft (7); a rack (9) is provided in the base (1); the rack (9) is meshingly connected to the gear (8); a cylinder (10) is provided in the base (1); the rack (9) is slidably connected to the base (1); and the rack (9) is connected to the output end of a plug rod of the cylinder (10).

3. The lathe drill bit fixing mechanism according to claim 1, characterized in that: Two groups of symmetrically distributed slots (16) are provided on both sides of the drill bit (2); two groups of symmetrically distributed mounting rods (11) are provided on the base (1); the mounting rods (11) are slidably connected to the base (1); a bidirectional screw rod (12) is provided in the base (1); a first bevel gear (13) is sleeved on the bidirectional screw rod (12); a second bevel gear (14) is provided in the base (1); a first motor (15) is provided in the base (1); a clamping tube (17) is provided on the mounting rod (11); the clamping tube (17) is arranged corresponding to the slot (16); and the clamping tube (17) is slidably connected to the drill bit (2) via the slot (16).

4. A lathe drill bit fixing mechanism according to claim 3, characterized in that: A push plug (18) is provided in the clamping tube (17), the push plug (18) is slidably connected to the clamping tube (17), the clamping tube (17) and the push plug (18) are filled with oil (19), two groups of symmetrically distributed sliding rods (21) are provided on the clamping tube (17), the push plug (18) and the sliding rods (21) are slidably sleeved, two groups of symmetrically distributed mounting frames (20) are provided on the clamping tube (17), the push plug (18) and the mounting frame (20) are slidably connected, a threaded rod (23) is provided in the mounting frame (20), and a second motor (24) is provided on the mounting frame (20).

5. A lathe drill bit fixing mechanism according to claim 4, characterized in that: The slide rod (21) is provided with a spring (22), and the two ends of the spring (22) are respectively fixedly connected to the push plug (18) and the clamping tube (17), and the two ends of the threaded rod (23) respectively penetrate the mounting frame (20) and are rotatably connected to the mounting frame (20), and the threaded rod (23) penetrates the push plug (18) and is threadedly connected to the push plug (18), and the threaded rod (23) is connected to the output end of the second motor (24).

6. A lathe drill bit fixing mechanism according to claim 3, characterized in that: The second bevel gear (14) is meshedly connected with the first bevel gear (13); the second bevel gear (14) is connected to the output end of the first motor (15) via a rotating shaft; the bidirectional screw rod (12) is rotatably connected to the base (1) via a bearing; and both ends of the bidirectional screw rod (12) respectively penetrate two sets of mounting rods (11) and are threadedly connected to the mounting rods (11).

Images