Tapping machine capable of automatically replacing drill bit

Abstract

The tapping machine capable of automatically replacing the drill bits comprises a tapping machine base and a lifting table, a connecting shaft is fixedly arranged at the bottom of a rotating shaft, a mounting groove is formed in the inner wall of one end of the connecting shaft, an elastic steel frame is fixedly arranged at one end of the inner wall of the mounting groove, and buckles are fixedly arranged on the two sides of the elastic steel frame. A spring is fixedly arranged between the inner walls of the elastic steel frame, and the outer wall of one end of the connecting shaft is sleeved with a tapping drill bit. A new tapping drill bit is clamped through the clamping piece, the hydraulic rod is started to enable the lifting table to descend to force the connecting shaft to be inserted into the butt joint groove in the top end of the tapping drill bit, meanwhile, the buckles on the two sides of the connecting shaft can slide into the butt joint groove along the inclined groove, the inclined groove is in an inclined state, and the buckles are gradually squeezed to be shrunk in the through hole until the connecting shaft cannot descend. A motor is started to rotate a connecting shaft by 90 degrees, at the moment, a buckle is clamped into a limiting hole, the drill bit can be installed by removing extrusion force of a clamping piece and lifting a lifting table, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tapping machines, in particular to a tapping machine capable of automatically replacing drill bits. Background Art

[0002] Tapping machine is a kind of mechanical processing equipment that processes internal threads, screws or thread buckles on the inner side of the holes of various parts with different specifications of through holes or blind holes, such as machine housings, equipment end faces, nuts, flanges, etc. Tapping machine is also called tapping machine, thread tapping machine, thread tapping machine, automatic tapping machine, etc. With the rapid development of the modern mechanical parts industry, the production demand for various parts is getting higher and higher. Therefore, the use of such tapping machines is becoming more and more frequent, and the functions of its upper end are constantly improved, so that it can better meet the needs of production use.

[0003] In the prior art, although the use of tapping machines is very frequent, when using the tapping machines, it is necessary to regularly replace the drill bit on the upper end thereof, or different types of drill bits need to be used when processing different internal threads. Therefore, replacement of the drill bit is an important step in the use of the tapping machine. However, the existing tapping machines require the staff to manually replace the drill bit when replacing the drill bit. There are many operating steps, and the replacement is very cumbersome, which increases the operating burden of the staff. At the same time, manual replacement takes a long time, thereby reducing the practicality of the device. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a tapping machine with automatic drill bit replacement to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model proposes a tapping machine for automatically replacing drill bits, comprising a tapping machine base and a lifting platform, wherein a driving mechanism for automatically replacing drill bits is arranged at the upper end of the lifting platform;

[0006] The driving mechanism for automatically changing the drill bit includes a rotating shaft inserted into one side of the bottom of the lifting platform, a connecting shaft is fixedly provided at the bottom of the rotating shaft, a mounting groove is opened on the inner wall of one end of the connecting shaft, through holes are opened on both sides of the inner wall of the mounting groove, an elastic steel frame is fixedly provided at one end of the inner wall of the mounting groove, buckles are fixedly provided on both sides of the elastic steel frame, and the outer walls of the two buckles are respectively inserted and connected with the inner walls of the two through holes, a spring is fixed between the inner walls of the elastic steel frame, and a tapping drill bit is sleeved on the outer wall of one end of the connecting shaft.

[0007] In one example, a docking groove is provided in the middle position of the top end of the tapping drill bit, and the outer wall of the connecting shaft is interlaced with the inner wall of the docking groove, oblique grooves are provided on both sides of the inner wall of the docking groove, and limiting holes are provided on both sides of the outer wall of the tapping drill bit, and the inner walls of the two limiting holes are respectively connected to the inner wall of the docking groove.

[0008] In one example, a hydraulic rod is fixedly provided on one side of the top of the tapping machine base, and one end of the hydraulic rod is fixedly connected to the other side of the bottom of the lifting platform. A support platform is provided on the outer wall of one end of the hydraulic rod, and a plurality of limit grooves are equidistantly provided on the top of the support platform.

[0009] In one example, a moving block is slidably provided on the inner wall of one of the limiting grooves, and sliding grooves are provided on both sides of the top of the moving block.

[0010] In one example, an electric telescopic rod is fixedly provided on one side of the inner wall of the two slide grooves, an arc-shaped clip is slidably provided on the inner wall of the two slide grooves, and the output ends of the two electric telescopic rods are fixedly connected to one side of the two arc-shaped clips respectively.

[0011] In one example, a motor is fixedly provided at an edge of one side of the top end of the lifting platform, and one end of the rotating shaft passes through the inner wall of the lifting platform and is fixedly connected to the output end of the motor.

[0012] In one example, a switch panel is fixedly provided on one side of the tapping machine base, and the electric telescopic rod and the motor are electrically connected to an external power supply through the switch panel.

[0013] The tapping machine with automatic drill bit replacement proposed by the utility model can bring the following beneficial effects:

[0014] 1. A tapping machine for automatically replacing drill bits, a new tapping drill bit is clamped by a clamp, a hydraulic rod is started to lower the lifting platform to force the connecting shaft to be inserted into the docking groove at the top of the tapping drill bit, and at the same time, the buckles on both sides of the connecting shaft will slide into the inclined groove, and the inclined groove is in an inclined state, and the buckles are gradually squeezed and shrink in the through hole until the connecting shaft cannot be lowered, and the motor is started to rotate the connecting shaft ninety degrees. At this time, the buckle is inserted into the limit hole, the squeezing force of the clamp is removed, and the lifting platform is raised to install the drill bit, thereby achieving the purpose of automatically replacing the drill bit and improving the practicality of the device.

[0015] 2. This tapping machine automatically replaces drill bits. When replacing the drill bit, the moving block with the clip is inserted into the limit groove on the upper end of the support table, and it is slid to the center area to align with the position of the connecting shaft, and the electric telescopic rod is started to push the clip to slide in the slide groove until the drill bit is clamped. The drill bit can be replaced. It is not easy to shift the position at noon, which improves the stability of the device when replacing the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure inside the connecting shaft of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the tapping drill bit of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the clamping piece and the movable block of the utility model for movable clamping.

[0021] In the figure: 1. tapping machine base; 2. lifting platform; 3. rotating shaft; 4. connecting shaft; 5. mounting groove; 6. elastic steel frame; 7. buckle; 8. spring; 9. tapping drill bit; 10. docking groove; 11. inclined groove; 12. limiting hole; 13. hydraulic rod; 14. supporting platform; 15. limiting groove; 16. moving block; 17. slide groove; 18. electric telescopic rod; 19. clamp; 20. motor. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0023] The examples are as follows:

[0024] The utility model provides Figure 1-4 The tapping machine with automatic drill bit replacement shown in the figure comprises a tapping machine base 1 and a lifting platform 2, wherein the upper end of the lifting platform 2 is provided with a driving mechanism for automatically replacing the drill bit;

[0025] The driving mechanism for automatically replacing the drill bit includes a rotating shaft 3 inserted into one side of the bottom of the lifting platform 2, a connecting shaft 4 is fixedly provided at the bottom of the rotating shaft 3, a mounting groove 5 is opened on the inner wall of one end of the connecting shaft 4, through holes are opened on both sides of the inner wall of the mounting groove 5, an elastic steel frame 6 is fixedly provided at one end of the inner wall of the mounting groove 5, buckles 7 are fixedly provided on both sides of the elastic steel frame 6, and the outer walls of the two buckles 7 are respectively inserted and connected with the inner walls of the two through holes, a spring 8 is fixed between the inner walls of the elastic steel frame 6, and a tapping drill bit 9 is sleeved on the outer wall of one end of the connecting shaft 4.

[0026] A docking groove 10 is provided at the middle position of the top of the tapping drill bit 9, and the outer wall of the connecting shaft 4 is connected with the inner wall of the docking groove 10 through an interlaced connection, and oblique grooves 11 are provided on both sides of the inner wall of the docking groove 10, and limiting holes 12 are provided on both sides of the outer wall of the tapping drill bit 9, and the inner walls of the two limiting holes 12 are respectively connected with the inner walls of the docking groove 10. When removing the drill bit, the connecting shaft 4 with the drill bit is also lowered and clamped by the clamping piece 19, and the buckle 7 is squeezed into the limiting hole 12 at the same time, and then the connecting shaft 4 is rotated to make the buckle 7 disengage from the limiting hole 12 under the elastic contraction of the spring 8 and the elastic steel frame 6, so that it is located in the oblique groove 11 area, and then the lifting platform 2 is raised to remove the drill bit, so as to achieve the purpose of automatically replacing the drill bit;

[0027] Furthermore, a hydraulic rod 13 is fixedly provided on one side of the top of the tapping machine base 1, and one end of the hydraulic rod 13 is fixedly connected to the other side of the bottom of the lifting platform 2, and the outer wall of one end of the hydraulic rod 13 is sleeved with a support platform 14, and a plurality of limit grooves 15 are equidistantly provided on the top of the support platform 14. A motor 20 is fixedly provided at the edge of one side of the top of the lifting platform 2, and one end of the rotating shaft 3 passes through the inner wall of the lifting platform 2 and is fixedly connected to the output end of the motor 20.

[0028] A switch panel is fixedly provided on one side of the tapping machine base 1, and the electric telescopic rod 18 and the motor 20 are electrically connected to the external power supply through the switch panel, and the support platform 14 can be disassembled on the outer wall of the hydraulic rod 13, and does not contact the telescopic area of ​​the hydraulic rod 13;

[0029] Furthermore, a moving block 16 is slidably provided on the inner wall of one of the limiting grooves 15 , and sliding grooves 17 are provided on both sides of the top of the moving block 16 .

[0030] An electric telescopic rod 18 is fixedly provided on one side of the inner wall of the two slide grooves 17, and an arc-shaped clip 19 is slidably provided on the inner wall of the two slide grooves 17. The output ends of the two electric telescopic rods 18 are respectively fixedly connected to one side of the two arc-shaped clips 19, and the moving block 16 is inserted into the limiting groove 15. It is squeezed by the inner wall of the limiting groove 15 and its outer wall, and is subjected to friction resistance, so that it cannot move on the support platform 14 by itself, and manual operation is required to remove it.

[0031] Working principle: When using the tapping machine with automatic drill bit replacement in this design, first, the lifting platform 2 needs to be connected through the hydraulic rod 13, and the support platform 14 needs to be installed in the area where the hydraulic rod 13 does not have the telescopic function. When replacing the drill bit, the new tapping drill bit 9 is clamped by the clamping piece 19, and the hydraulic rod 13 is started to make the lifting platform 2 descend and force the connecting shaft 4 to be inserted into the docking groove 10 at the top of the tapping drill bit 9. At the same time, the buckles 7 on both sides of the connecting shaft 4 will slide into the inclined groove 11. At the same time, the inclined groove 11 is in an inclined state, and the buckles 7 are gradually squeezed and shrink in the through hole until the connecting shaft 4 cannot be lowered, and then the hydraulic rod 13 is started. The motor 20 rotates the connecting shaft 4 by ninety degrees. At this time, the buckle 7 is inserted into the limiting hole 12. The extrusion force of the clip 19 is removed and the lifting platform 2 is raised to install the drill bit, thereby achieving the purpose of automatically replacing the drill bit and improving the practicality of the device. When replacing the drill bit, the moving block 16 with the clip 19 is inserted into the limiting groove 15 at the upper end of the support platform 14, and it is slid to the position where the center area is aligned with the connecting shaft 4. The electric telescopic rod 18 is started to push the clip 19 to slide in the slide groove 17 until the drill bit is clamped. The operation of replacing the drill bit can be carried out, and it is not easy to deviate from the position in the middle, thereby improving the stability of the device when replacing the drill bit.

[0032] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0033] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A tapping machine for automatically changing drill bits, comprising a tapping machine base (1) and a lifting platform (2), characterized in that: The upper end of the lifting platform (2) is provided with a driving mechanism for automatically replacing the drill bit; The driving mechanism for automatically changing the drill bit comprises a rotating shaft (3) inserted into one side of the bottom of the lifting platform (2); a connecting shaft (4) is fixedly provided at the bottom of the rotating shaft (3); a mounting groove (5) is provided on the inner wall at one end of the connecting shaft (4); through holes are provided on both sides of the inner wall of the mounting groove (5); an elastic steel frame (6) is fixedly provided at one end of the inner wall of the mounting groove (5); buckles (7) are fixedly provided on both sides of the elastic steel frame (6); and the outer walls of the two buckles (7) are respectively inserted and connected with the inner walls of the two through holes; a spring (8) is fixedly provided between the inner walls of the elastic steel frame (6); and a tapping drill bit (9) is sleeved on the outer wall at one end of the connecting shaft (4).

2. A tapping machine with automatic drill bit replacement according to claim 1, characterized in that: A docking groove (10) is provided at the middle position of the top end of the tapping drill bit (9), and the outer wall of the connecting shaft (4) is interlaced with the inner wall of the docking groove (10), oblique grooves (11) are provided on both sides of the inner wall of the docking groove (10), and limiting holes (12) are provided on both sides of the outer wall of the tapping drill bit (9), and the inner walls of the two limiting holes (12) are respectively connected to the inner wall of the docking groove (10).

3. The tapping machine with automatic drill bit replacement according to claim 1, characterized in that: A hydraulic rod (13) is fixedly provided on one side of the top of the tapping machine base (1), and one end of the hydraulic rod (13) is fixedly connected to the other side of the bottom of the lifting platform (2); a support platform (14) is sleeved on the outer wall of one end of the hydraulic rod (13), and a plurality of limit grooves (15) are equidistantly provided on the top of the support platform (14).

4. A tapping machine with automatic drill bit replacement according to claim 3, characterized in that: A moving block (16) is slidably provided on the inner wall of one of the limiting grooves (15), and sliding grooves (17) are provided on both sides of the top of the moving block (16).

5. A tapping machine with automatic drill bit replacement according to claim 4, characterized in that: An electric telescopic rod (18) is fixedly provided on one side of the inner wall of the two slide grooves (17), an arc-shaped clamping piece (19) is slidably provided on the inner wall of the two slide grooves (17), and the output ends of the two electric telescopic rods (18) are fixedly connected to one side of the two arc-shaped clamping pieces (19) respectively.

6. The tapping machine with automatic drill bit replacement according to claim 1, characterized in that: A motor (20) is fixedly provided at the edge of one side of the top end of the lifting platform (2), and one end of the rotating shaft (3) passes through the inner wall of the lifting platform (2) and is fixedly connected to the output end of the motor (20).

7. A tapping machine with automatic drill bit replacement according to claim 6, characterized in that: A switch panel is fixedly provided on one side of the tapping machine base (1), and the electric telescopic rod (18) and the motor (20) are electrically connected to an external power source via the switch panel.

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