Fixture for drill bit production

Abstract

The utility model discloses a clamp for drill bit production. The clamp comprises an inner side supporting frame and a clamping mechanism. A bottom supporting frame is arranged on the lower side of the inner side supporting frame, the middle of the inner side supporting frame is rotationally connected with a limiting rotating ring, and the middle of the limiting rotating ring is rotationally connected with circular rotating blocks which are evenly distributed; the clamping mechanism comprises clamping cylinders, sliding limiting sections, limiting blocks, elastic clamping cylinders, clamping heads and top connectors, the clamping cylinders are fixedly connected to the upper surfaces of the limiting rotating rings, the sliding limiting sections are arranged on the lower sides of the interiors of the clamping cylinders, the limiting blocks are slidably connected to the interiors of the sliding limiting sections, and the elastic clamping cylinders are fixedly connected to the upper surfaces of the clamping heads. Elastic clamping barrels are evenly distributed on the upper surfaces of the limiting blocks, clamping heads are arranged on the upper surfaces of the elastic clamping barrels, top connectors are arranged in the middles of the upper surfaces of the limiting blocks, and according to the clamp for drill bit production, the drill bit clamping stable effect is good, the clamping speed is high, and the clamping force is proper.

Description

Technical Field

[0001] The utility model relates to the technical field of drill bit processing, in particular to a clamp for drill bit production. Background Art

[0002] In center machining technology, the drill bit is a tool used for cutting and drilling. It is fixed by a drill fixture to work. The drill fixture can stabilize the drill bit and keep the drill bit in the corresponding processing position according to production and processing needs, so as to improve work efficiency and accuracy.

[0003] A drill bit clamp disk structure disclosed in CN201921487524.2 includes a main disk, an auxiliary disk and a rotating shaft. The rotating shaft is rotatably set on a frame. The main disk and the auxiliary disk are coaxially sleeved on the rotating shaft. The circular periphery of the main disk is provided with a head embedding groove, and the circular periphery of the auxiliary disk is provided with a body embedding groove. The head embedding groove is embedded in the drill bit head, and the body embedding groove is embedded in the drill bit body. The drill bit clamp disk structure of the utility model can effectively realize all-round positioning of the drill bit through the setting of the main disk and the auxiliary disk.

[0004] The above-mentioned combined clamps for drill bit production and processing have some problems in use. For example, the force adjustment ability of this type of clamp is poor, the clamping process time is long, and the force cannot be controlled automatically. Therefore, we propose a clamp for drill bit production. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a clamp for drill bit production, which has a good clamping and stabilizing effect on the drill bit, a fast clamping speed and appropriate force, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a fixture for producing a drill bit, comprising an inner support frame and a clamping mechanism;

[0007] Inner support frame: a bottom support frame is provided on its lower side, the middle part of the inner support frame is rotatably connected to a limit swivel, and the middle part of the limit swivel is rotatably connected to evenly distributed circular rotating blocks;

[0008] Clamping mechanism: It includes a clamping cylinder, a sliding limit section, a limit block, an elastic clamping cylinder, a clamping head and a top joint. The clamping cylinders are fixedly connected to the upper surface of the limit swivel, and the lower inner side of the clamping cylinder is provided with a sliding limit section. The inner part of the sliding limit section is slidably connected to the limit block. The upper surface of the limit block is provided with evenly distributed elastic clamping cylinders, and the upper surface of the elastic clamping cylinder is provided with a clamping head. The middle part of the upper surface of the limit block is provided with a top joint, and the upper surface of the top joint is provided with a top connection groove. The middle part of the circular rotating block and the bottom of the clamping cylinder are provided with a rotating groove. The drill bit has a good clamping stability effect, a fast clamping speed, and appropriate force.

[0009] Furthermore, the clamping mechanism also includes an internal clamping thread and an external clamping thread. The internal clamping threads are respectively arranged on the inner upper side of the clamping cylinder, and the outer arc surface of the elastic clamping cylinder is provided with an external thread. The external thread is respectively connected to the internal clamping thread located in the same clamping cylinder, providing a guiding force for the four Jiatong approach principles.

[0010] Furthermore, it also includes a rotating mechanism, which includes an outer gear ring, a driven gear and a driving gear. The outer gear ring is arranged on the upper side of the outer arc surface of the inner support frame, and the lower side of the outer arc surface of the clamping cylinder is fixedly sleeved with a driven gear. The outer side surface of the driven gear is meshed with an outer gear ring, and the inner side surface of the driven gear is meshed with a driving gear to realize the function of rotating to change the position of the drill bit.

[0011] Furthermore, it also includes a control switch, which is arranged on the right side of the bottom support frame. The input end of the control switch is electrically connected to an external power supply to control the start and stop of the motor.

[0012] Furthermore, the rotation mechanism also includes a reduction motor, which is arranged at the lower end of the inner support frame. The output shaft of the reduction motor is fixedly connected to the lower end of the driving gear. The input end of the reduction motor is electrically connected to the output end of the control switch to provide power for changing the drill bit position.

[0013] Furthermore, the clamping mechanism also includes a transmission rod, which is rotatably connected to the inside of each two vertically adjacent rotation grooves, and the upper end of the transmission rod is fixedly connected to the lower end of the limit block located in the same clamping cylinder to realize the transmission function.

[0014] Furthermore, it also includes an external hexagonal head, which is respectively arranged at the lower end of the transmission rod to provide power for tightening.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the clamp for drill bit production has the following advantages:

[0016] 1. By using the planetary gear structure, the revolution of the fixture and the rotation of the product are realized during use, realizing three-dimensional motion. The clamped drill bit can be numerically moved to the processing station, and the positioning effect is fast and good.

[0017] 2. The clamp is manually adjustable to easily control the tightness of the clamping force applied to the drill shaft. The drill bit has a good clamping stability, fast clamping speed and appropriate force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2This is a schematic diagram of the bottom structure of the utility model;

[0020] Figure 3 This is a schematic cross-sectional view of the clamping mechanism of the present invention;

[0021] Figure 4 This is an enlarged structural diagram of point A of the utility model;

[0022] Figure 5 This is an enlarged structural diagram of point B of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the limiting swivel of the utility model.

[0024] In the figure: 1 inner support frame, 2 rotating mechanism, 21 external gear ring, 22 driven gear, 23 driving gear, 24 reduction motor, 3 limit swivel, 4 circular rotating block, 5 clamping mechanism, 51 clamping cylinder, 52 sliding limit section, 53 clamping internal thread, 54 limit block, 55 elastic clamping cylinder, 56 external thread, 57 clamping head, 58 top joint, 59 transmission rod, 6 rotating groove, 7 bottom support frame, 8 external hexagonal head, 9 control switch. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-6 , this embodiment provides a technical solution: a fixture for drill bit production, comprising an inner support frame 1 and a clamping mechanism 5;

[0027] Inner support frame 1: A bottom support frame 7 is provided on its lower side. The middle part of the inner support frame 1 is rotatably connected to a limited swivel 3. The middle part of the limited swivel 3 is rotatably connected to evenly distributed circular rotating blocks 4. When the drill bit production fixture is needed, the fixture can be installed to the designated work station through the bottom support frame 7.

[0028] The clamping mechanism 5 includes a clamping cylinder 51, a sliding limit section 52, a limit block 54, an elastic clamping cylinder 55, a clamping head 57 and a top joint 58. The clamping cylinder 51 is fixedly connected to the upper surface of the limit swivel 3. The lower inner side of the clamping cylinder 51 is provided with a sliding limit section 52. The inner part of the sliding limit section 52 is slidably connected to the limit block 54. The upper surface of the limit block 54 is provided with evenly distributed elastic clamping cylinders 55. The upper surface of the elastic clamping cylinder 55 is provided with a clamping head 57. The middle part of the upper surface of the limit block 54 is provided with a top joint 58. The upper surface of the top joint 58 is provided with a top connection groove. The middle part of the circular rotating block 4 and the bottom of the clamping cylinder 51 are provided with a rotation groove 6. The clamping mechanism 5 also includes an internal thread 53 and an external thread 56 for clamping. The internal thread 53 for clamping They are respectively arranged on the upper inner side of the clamping cylinder 51, and the outer arc surface of the elastic clamping cylinder 55 is provided with an external thread 56, which is threadedly connected to the clamping internal thread 53 located in the same clamping cylinder 51. It also includes a rotating mechanism 2, which includes an outer gear ring 21, a driven gear 22 and a driving gear 23. The outer gear ring 21 is arranged on the upper outer arc surface of the inner support frame 1, and the lower outer arc surface of the clamping cylinder 51 is fixedly sleeved with a driven gear 22. The outer side surface of the driven gear 22 is meshed with an outer gear ring 21, and the inner side surface of the driven gear 22 is meshed with a driving gear 23. It includes a control switch 9, which is arranged on the right side of the bottom support frame 7. The input end of the control switch 9 is electrically connected to an external power supply. The rotating mechanism 2 also includes The reducer motor 24 is provided at the lower end of the inner support frame 1, the output shaft of the reducer motor 24 is fixedly connected to the lower end of the driving gear 23, the input end of the reducer motor 24 is electrically connected to the output end of the control switch 9, the clamping mechanism 5 also includes a transmission rod 59, the transmission rod 59 is rotatably connected to the inside of each two vertically adjacent rotating grooves 6, the upper ends of the transmission rods 59 are respectively fixedly connected to the lower ends of the limit blocks 54 located in the same clamping tube 51, and also includes an external hexagonal head 8, the external hexagonal head 8 is respectively provided at the lower end of the transmission rod 59, the structure of the four elastic clamping tubes 55 is an ER clamping tube structure, the shaft body of the drill bit is inserted into the interior of the clamping tube 51, and at this time, it is guided by the clamping head 57, and the bottom end of the shaft body is directly inserted into the top connection groove of the top joint 58. When the screwdriver 53 is in the working state, the drive rod 59 is rotated, and the drive rod 59 is driven to rotate, thereby the limit block 54 is rotated in the sliding limit section 52. At this time, the limit block 54 is affected by the thread force of the clamping internal thread 53 and the external thread 56. During the rotation of the limit block 54, the clamping internal thread 53 exerts a downward force on the elastic clamping cylinder 55 through the external thread 56, thereby driving the four elastic clamping cylinders 55 to move downward, thereby driving the clamping heads 57 to clamp the shaft body of the drill bit. At the same time, the limit block 54 moves downward in the sliding limit section 52. When it moves to the specified position, the four clamping heads 57 cooperate with the top groove to complete the clamping of the shaft body of the drill bit. At this time, the clamping of the remaining drill shaft bodies can be completed by the same method.At this time, the control switch 9 can be adjusted to start the reduction motor 24. The output shaft of the reduction motor 24 rotates slowly, which in turn drives the driving gear 23 to rotate slowly, which in turn drives the limit ring 3 to rotate, and in turn drives the driven gear 22 to rotate while also revolving around the driving gear 23.

[0029] The working principle of the drill production fixture provided by the present invention is as follows: when the drill production fixture is needed, the drill shaft is inserted into the interior of the clamping tube 51. At this time, it is guided by the clamping head 57, and the bottom end of the shaft is directly inserted into the top connection groove of the top joint 58. At this time, the hexagonal wrench can be picked up to screw the hexagonal head 8 on the lower side, and the transmission rod 59 rotates, thereby driving the transmission rod 59 to rotate, and then the limit block 54 rotates in the sliding limit section 52. At this time, it is affected by the thread force of the clamping internal thread 53 and the external thread 56. During the rotation of the limit block 54, the clamping internal thread 53 gives a downward force to the elastic clamping tube 55 through the external thread 56, thereby driving the four elastic clamping tubes 5 5 moves downward, thereby driving the clamping head 57 to clamp the shaft of the drill bit. At the same time, the limit block 54 moves downward in the sliding limit section 52. When it moves to the specified position, the four clamping heads 57 cooperate with the top groove to complete the clamping of the shaft of the drill bit. At this time, the clamping of the remaining drill shafts can be completed by the same method. At this time, the clamp can be installed to the specified position through the bottom support frame 7. At this time, the control switch 9 can be adjusted to operate the reduction motor 24. The output shaft of the reduction motor 24 rotates slowly, thereby driving the driving gear 23 to rotate slowly, thereby driving the limit ring 3 to rotate, thereby driving the driven gear 22 to rotate while also revolving around the driving gear 23.

[0030] It is worth noting that the reduction motor 24 disclosed in the above embodiment can be freely configured according to the actual application scenario. It is recommended to use a 5I K60GN-YF reduction motor for the reduction motor 24. The control switch 9 is provided with a control button corresponding to the reduction motor 24 and used to control its switch.

[0031] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drill bit production fixture, characterized by: It comprises an inner support frame (1) and a clamping mechanism (5); The inner support frame (1) is provided with a bottom support frame (7) on its lower side. The middle part of the inner support frame (1) is rotatably connected to a limit swivel (3). The middle part of the limit swivel (3) is rotatably connected to evenly distributed circular rotating blocks (4). The clamping mechanism (5) comprises a clamping cylinder (51), a sliding limit section (52), a limit block (54), an elastic clamping cylinder (55), a clamping head (57) and a top joint (58). The clamping cylinder (51) is fixedly connected to the upper surface of the limit swivel (3). The lower side of the inner part of the clamping cylinder (51) is provided with a sliding limit section (52). The inner part of the sliding limit section (52) is slidably connected to the limit block (54). The upper surface of the limit block (54) is provided with uniformly distributed elastic clamping cylinders (55). The upper surface of the elastic clamping cylinder (55) is provided with a clamping head (57). The middle part of the upper surface of the limit block (54) is provided with a top joint (58). The upper surface of the top joint (58) is provided with a top connection groove. The middle part of the circular swivel block (4) and the bottom of the clamping cylinder (51) are provided with a rotation groove (6).

2. A drill bit production fixture according to claim 1, characterized in that: The clamping mechanism (5) further comprises a clamping internal thread (53) and an external thread (56), wherein the clamping internal thread (53) is respectively arranged on the inner upper side of the clamping cylinder (51), and the outer arc surface of the elastic clamping cylinder (55) is provided with an external thread (56), and the external thread (56) is respectively threadedly connected to the clamping internal thread (53) located in the same clamping cylinder (51).

3. The drill bit production fixture according to claim 1, characterized in that: The invention also includes a rotating mechanism (2), wherein the rotating mechanism (2) includes an outer gear ring (21), a driven gear (22) and a driving gear (23), wherein the outer gear ring (21) is arranged on the upper side of the outer arc surface of the inner support frame (1), and the lower side of the outer arc surface of the clamping cylinder (51) is fixedly sleeved with the driven gear (22), and the outer side surface of the driven gear (22) is meshed with an outer gear ring (21), and the inner side surface of the driven gear (22) is meshed with a driving gear (23).

4. A drill bit production fixture according to claim 3, characterized in that: It also includes a control switch (9), which is arranged on the right side of the bottom support frame (7), and the input end of the control switch (9) is electrically connected to an external power supply.

5. A drill bit production fixture according to claim 4, characterized in that: The rotating mechanism (2) further includes a reduction motor (24), which is arranged at the lower end of the inner support frame (1), the output shaft of the reduction motor (24) is fixedly connected to the lower end of the driving gear (23), and the input end of the reduction motor (24) is electrically connected to the output end of the control switch (9).

6. The drill bit production fixture according to claim 1, characterized in that: The clamping mechanism (5) further comprises a transmission rod (59), which is rotatably connected to the interior of each two vertically adjacent rotation grooves (6), and the upper end of the transmission rod (59) is fixedly connected to the lower end of a limit block (54) located in the same clamping cylinder (51).

7. A drill bit production fixture according to claim 6, characterized in that: It also includes an outer hexagonal head (8), which is respectively arranged at the lower end of the transmission rod (59).

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