Multi-cutter synchronous-moving numerical control machine tool with back tapping function

Abstract

The utility model discloses a multi-cutter synchronous-moving numerical control machine tool with a back tapping function, which comprises a machine table, a main shaft system arranged on a first side of the machine table, a back shaft tapping mechanism arranged on a second side of the machine table, a main shaft arranged on the main shaft system in a rotating manner, a main shaft chuck assembled on the main shaft and a plurality of cutter feeding mechanisms arranged around the main shaft chuck, the back shaft tapping mechanism comprises a tapping base of the machine table, a tapping feeding drive fixedly installed on the tapping base, a tapping sliding base arranged on the tapping base in a sliding mode, a tapping transmission assembly assembled on the tapping sliding base, a tapping shaft connected to the tapping transmission assembly in a driving mode and a tapping cutter assembled at the end of the tapping shaft, and the tapping shaft and the main shaft are coaxially arranged. The multi-cutter tapping machine comprises the main shaft and the back shaft, the main shaft achieves the function of simultaneous movement of multiple cutters, the side face of a part is machined, and the back shaft tapping mechanism additionally arranged can tap the back face of the part through the speed difference between the tapping shaft and the main shaft which rotate in the same direction.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a multi-tool simultaneous numerical control machine tool for back-tapping. Background Art

[0002] A CNC machine tool includes a control system and a machining center. The control system sends various control instructions to the machining center, so that the machining center automatically processes parts according to the requirements of the drawings. The existing machining center does not have a back-axis system. For example, a multi-axis CNC machine tool provided by a Chinese utility model patent (patent number CN209465695U) drives a tool to process the workpiece of a lathe spindle through multiple motion modules. However, such a structural design does not have a back-axis system and cannot process the back of the workpiece, which cannot meet the diverse needs of users. In addition, such a structural design is complex and the equipment cost is high, so it is necessary to improve it. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a multi-tool simultaneous CNC machine tool for back tapping.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a multi-tool synchronous CNC machine tool for back tapping, which includes a machine table, a spindle system arranged on a first side of the machine table, and a back-spindle tapping mechanism arranged on a second side of the machine table. The spindle system is configured with a rotatable spindle, a spindle chuck assembled on the spindle, and a plurality of feed mechanisms arranged around the spindle chuck. The back-spindle tapping mechanism includes a tapping base of the machine table, a tapping feed drive fixedly mounted on the tapping base, a tapping slide slidably arranged on the tapping base, a tapping transmission assembly assembled on the tapping slide, a tapping shaft drivingly connected to the tapping transmission assembly, and a tapping tool assembled on the end of the tapping shaft. The tapping shaft is coaxially arranged with the spindle.

[0005] In a further technical solution, the tapping transmission assembly is provided with a transmission base fixedly mounted on the tapping slide, a tapping motor arranged on the transmission base, a motor gear assembled on the driving end of the tapping motor, and a tapping gear assembled on the tapping shaft and connected to the motor gear.

[0006] In a further technical solution, the number of the feed mechanisms is configured as five groups.

[0007] In a further technical solution, the five groups of feed mechanisms are distributed in a semi-fan shape or a semi-circle.

[0008] In a further technical solution, each feed mechanism is configured with a slidably arranged tool holder, a mounting seat detachably mounted on the tool holder, and a cutting kit mounted on the mounting seat. The cutting kit is configured as a CNC tool, a multi-tool kit, a nozzle guide sleeve, a tail butt support or a milling cutter kit.

[0009] In a further technical solution, each feed mechanism is also provided with a first fixed seat, a first driving member installed on the first fixed seat, a second fixed seat drivingly connected to the first driving member, and a second driving member installed on the second fixed seat, and the knife seat is slidably installed on the second fixed seat.

[0010] In a further technical solution, the spindle system is further provided with a spindle chassis fixedly mounted on the machine platform, and each feed mechanism is mounted on the spindle chassis.

[0011] After adopting the above structure, the utility model has the following advantages compared with the prior art:

[0012] The utility model comprises a main shaft and a back shaft. The main shaft realizes the function of multiple tools moving simultaneously to process the side of the part, and the additional back shaft tapping mechanism utilizes the speed difference between the tapping shaft and the main shaft rotating in the same direction to tap the back of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

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

[0015] Figure 2 It is a structural schematic diagram of the back-spindle tapping mechanism;

[0016] Figure 3 It is a structural diagram of the feed mechanism. DETAILED DESCRIPTION

[0017] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0018] like Figures 1 to 3 As shown, the utility model provides a multi-tool simultaneous CNC machine tool for back tapping, which includes a machine table 1, a spindle system 2 arranged on a first side of the machine table 1, and a back-spindle tapping mechanism 5 arranged on a second side of the machine table 1. The spindle system 2 is configured with a rotatable spindle, a spindle chuck 20 assembled on the spindle, and a plurality of feed mechanisms 21 arranged around the spindle chuck 20. The back-spindle tapping mechanism 5 includes a tapping base 50 of the machine table 1, a tapping feed drive 51 fixedly mounted on the tapping base 50, a tapping slide 52 slidably arranged on the tapping base 50, a tapping transmission assembly 53 assembled on the tapping slide 52, a tapping shaft 54 ​​drivingly connected to the tapping transmission assembly 53, and a tapping cutter 55 assembled on the end of the tapping shaft 54, and the tapping shaft 54 ​​is coaxially arranged with the spindle.

[0019] The utility model comprises a main shaft and a back shaft. The main shaft realizes the function of multiple tools moving simultaneously to process the side of the part, and the additional back shaft tapping mechanism utilizes the speed difference between the tapping shaft 54 ​​and the main shaft rotating in the same direction to tap the back of the part.

[0020] Specifically, the tapping transmission assembly 53 is provided with a transmission base 530 fixedly mounted on the tapping slide 52, a tapping motor 531 arranged on the transmission base 530, a motor gear 532 assembled on the driving end of the tapping motor 531, and a tapping gear 533 assembled on the tapping shaft 54 ​​and transmission connected to the motor gear 532. The motor gear 532 drives the tapping gear 533, and then drives the tapping shaft 54 ​​to rotate rapidly, so that the tapping cutter 55 can quickly tap the back of the workpiece.

[0021] Preferably, the number of the feed mechanisms 21 is five.

[0022] The five groups of feed mechanisms 21 are distributed in a semi-fan shape or a semi-circle, one feed mechanism 21 is arranged vertically perpendicular to the main axis, two feed mechanisms 21 are arranged horizontally perpendicular to the main axis, and another two feed mechanisms 21 are arranged obliquely relative to the main axis.

[0023] In this embodiment, each feed mechanism 21 is equipped with a slidable tool holder 210, a mounting seat 211 detachably mounted on the tool holder 210, and a cutting kit 212 mounted on the mounting seat 211. The cutting kit 212 is configured as a CNC tool, a multi-tool kit, a nozzle guide sleeve, a tail support material piece, or a milling cutter kit. The driving end of the multiple feed mechanisms of the utility model can freely select a suitable cutting kit to meet the diversified needs of multiple processes. For example, a multi-tool kit can simultaneously assemble multiple CNC tools to meet the needs of turning, milling, drilling or tapping the workpiece, and the nozzle guide sleeve can extend the clamping of the workpiece to meet the clamping of slender materials. Such a structural design is very clever, and the factory can select and assemble according to its needs to form a variety of modes or combination modes, which is highly practical.

[0024] Furthermore, each feed mechanism 21 is also provided with a first fixed seat 213, a first driving member 214 installed on the first fixed seat 213, a second fixed seat 215 drivingly connected to the first driving member 214, and a second driving member 216 installed on the second fixed seat 215, and the knife seat 210 is slidably installed on the second fixed seat 215.

[0025] The first driving member 214 and the second driving member 216 are used in conjunction with each other, so that the cutting kit 212 can adjust the specific position of the cutting kit in two axial directions, and has a wider application range.

[0026] The spindle system 2 is further provided with a spindle case 22 fixedly mounted on the machine platform 1 , each feed mechanism 21 is fixedly mounted on the spindle case 22 via a first fixed seat 213 , and the spindle is rotatably mounted in the middle of the spindle case 22 .

[0027] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A multi-tool simultaneous CNC machine tool for back tapping, characterized in that: The invention comprises a machine (1), a spindle system (2) arranged on a first side of the machine (1), and a back-spindle tapping mechanism (5) arranged on a second side of the machine (1); the spindle system (2) is provided with a rotatable spindle, a spindle chuck (20) mounted on the spindle, and a plurality of feed mechanisms (21) arranged around the spindle chuck (20); the back-spindle tapping mechanism (5) comprises a tapping base (50) of the machine (1), a tapping feed drive (51) fixedly mounted on the tapping base (50), a tapping slide (52) slidably arranged on the tapping base (50), a tapping transmission assembly (53) mounted on the tapping slide (52), a tapping shaft (54) drivingly connected to the tapping transmission assembly (53), and a tapping cutter (55) mounted on the end of the tapping shaft (54); the tapping shaft (54) is coaxially arranged with the spindle; Each feed mechanism (21) is provided with a slidably arranged tool seat (210), a mounting seat (211) detachably mounted on the tool seat (210), and a cutting kit (212) mounted on the mounting seat (211); the cutting kit (212) is configured as a numerical control tool, a multi-tool kit, a nozzle guide sleeve, a tail butt material support piece, or a milling cutter kit; Each knife feed mechanism (21) is further provided with a first fixed seat (213), a first driving member (214) installed on the first fixed seat (213), a second fixed seat (215) drivingly connected to the first driving member (214), and a second driving member (216) installed on the second fixed seat (215), and the knife seat (210) is slidably installed on the second fixed seat (215).

2. A multi-tool simultaneous CNC machine tool for back tapping according to claim 1, characterized in that: The tapping transmission assembly (53) is provided with a transmission base (530) fixedly mounted on the tapping slide (52), a tapping motor (531) arranged on the transmission base (530), a motor gear (532) mounted on the driving end of the tapping motor (531), and a tapping gear (533) mounted on the tapping shaft (54) and drivingly connected to the motor gear (532).

3. The multi-tool simultaneous CNC machine tool for back tapping according to claim 1, characterized in that: The number of the feed mechanisms (21) is configured as five groups.

4. A multi-tool simultaneous CNC machine tool for back tapping according to claim 3, characterized in that: The five groups of the feed mechanisms (21) are distributed in a semi-fan shape or a semi-circle.

5. The multi-tool simultaneous CNC machine tool for back tapping according to claim 1, characterized in that: The spindle system (2) is also provided with a spindle case (22) fixedly mounted on the machine platform (1), and each feed mechanism is mounted on the spindle case (22).

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