Five-axis gantry machining center with exchangeable head

Abstract

The present application belongs to the field of numerical control machine tool accessories, and particularly relates to a five-axis gantry machining center exchangeable swing head turret. The technical scheme is as follows: comprising a support, a warehouse body, a positioning support unit, a loosening device, a detection unit and a pneumatic cleaning unit, a plurality of warehouse bodies are arranged in a row on the support, and the positioning support unit is arranged at the middle part of the warehouse body; the loosening device is arranged at the upper end of the warehouse body and is used for realizing the disengagement between the A-axis swing body and the C-axis swing body of the exchangeable swing head; the detection unit is arranged on the warehouse body and the positioning support unit and is used for detecting the in-place condition of the exchangeable swing head; and the pneumatic cleaning unit is arranged on the positioning support unit. The present application can provide automatic exchange storage positions for a plurality of exchangeable swing heads, ensure the automatic switching of different A-axis swing bodies when the five-axis gantry machining center processes different parts and processes, solve the problems of poor reliability and low efficiency of manual head replacement, and improve the machining efficiency and precision level of the five-axis gantry machining center.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of numerical control machine tool accessories, and particularly relates to a five-axis gantry machining center exchangeable swing head turret. BACKGROUND

[0002] With the continuous development of science and technology, the automation level, production efficiency and reliability of modern manufacturing are increasingly improved. Especially in the field of aerospace, the materials of the same part are often diversified, involving aluminum alloy, titanium alloy, composite material and other different materials, which makes different and even very different personalized requirements for processing parameters, which requires multiple clamping and processing on different machine tools for the same part, which not only reduces the production efficiency, but also cannot guarantee the machining accuracy.

[0003] The five-axis gantry machining center equipped with exchangeable swing head can meet the requirements of high efficiency and high precision, and the exchangeable swing head includes a C-axis swing body and a plurality of A-axis swing bodies. The C-axis swing body is fixedly connected with the machine tool ram, and the plurality of A-axis swing bodies share one C-axis swing body. After the different A-axis swing bodies are separated from the C-axis swing body, the headstock for storing the A-axis swing body of the exchangeable swing head is needed.

[0004] However, the five-axis gantry machining center does not have a headstock for providing storage positions for its exchangeable swing head, and cannot realize the reliability, automation and high-precision exchange of the A-axis swing body. SUMMARY

[0005] The present application provides a five-axis gantry machining center exchangeable swing head turret, which can provide automatic exchange storage positions for a plurality of exchangeable swing heads, ensure the automatic switching of different A-axis swing bodies when the five-axis gantry machining center processes different parts and processes, solve the problems of poor reliability and low efficiency of manual head replacement, improve the machining efficiency and precision level of the five-axis gantry machining center, and meet the high-efficiency machining requirements of parts in the field of aerospace.

[0006] The technical scheme of the present application is as follows:

[0007] A five-axis gantry machining center exchangeable swing head turret, comprising a support, a warehouse body, a positioning support unit, a loosening device, a detection unit and a pneumatic cleaning unit. A plurality of warehouse bodies are arranged in a row on the support, and the positioning support unit is arranged in the middle of the warehouse body. The loosening device is arranged at the upper end of the warehouse body and is used to realize the disengagement between the A-axis swing body and the C-axis swing body of the exchangeable swing head. The detection unit is arranged on the warehouse body and the positioning support unit, and is used to detect the positioning of the exchangeable swing head. The pneumatic cleaning unit is arranged on the positioning support unit.

[0008] Further, the five-axis gantry machining center exchangeable swing head magazine, the warehouse body includes a stand, an upper frame, a middle frame and a lower frame, the upper frame, the middle frame and the lower frame are fixedly connected into a whole through four stands, the lower frame is fixedly arranged on the support, a support plate is arranged on the middle frame, a positioning support unit is arranged on the support plate, and a loosening device is arranged at the upper end of the upper frame.

[0009] Further, the five-axis gantry machining center exchangeable swing head magazine, the positioning support unit includes a support structure and an adjusting mechanism, the support structure is fixedly installed on the support plate, and the adjusting mechanism is installed on the support plate through fixing screws and located at the side and end of the support structure.

[0010] Further, the five-axis gantry machining center exchangeable swing head magazine, the support structure includes a seat body, a positioning pin, an adjusting round pad and a polytetrafluoroethylene plastic plate, the seat body is fixedly installed on the support plate, the adjusting round pad is fixedly arranged on the seat body, the positioning pin is fixedly arranged at the center of the adjusting round pad, and the polytetrafluoroethylene plastic plate is arranged on the end face of the seat body outside the adjusting round pad; the thickness of the adjusting round pad is set according to requirements.

[0011] Further, the five-axis gantry machining center exchangeable swing head magazine, the support structure is divided into single-arm swing head support structure and double-arm swing head support structure; the single-arm swing head support structure is provided with two positioning pins, and the two positioning pins are symmetrically arranged on the seat body; the double-arm swing head support structure is provided with one positioning pin, and the positioning pin is located at the right part of the seat body; the left part of the seat body is provided with one mounting groove; the double-arm swing head support structure needs two as a pair of use, and the positioning pins are arranged according to the diagonal line.

[0012] Further, the five-axis gantry machining center exchangeable swing head magazine, the adjusting mechanism includes an adjusting block, a jacking screw and a pulling screw, the adjusting block is installed on the support plate through fixing screws, the adjusting block is provided with a horizontal long circular hole and two threaded holes, and the two threaded holes are located at the two sides of the long circular hole; the side or end of the seat body is provided with a threaded hole, the pulling screw is inserted into the long circular hole and screwed into the threaded hole, and the two jacking screws are screwed into the two threaded holes and the ends thereof are abutted on the side or end of the seat body.

[0013] Further, the five-axis gantry machining center exchangeable swing head turret, the detection unit includes exchangeable swing head to position detection switch and exchangeable swing head anti-misplacement detection switch;When the support structure of the warehouse body is a pair of double-arm swing head support structure, the exchangeable swing head to position detection switch is arranged in the mounting groove of one double-arm swing head support structure, and the exchangeable swing head anti-misplacement detection switch is arranged in the mounting groove of the other double-arm swing head support structure;When the support structure of the warehouse body is a single-arm swing head support structure, the exchangeable swing head to position detection switch is arranged on the upper frame of the warehouse body, and the exchangeable swing head anti-misplacement detection switch is arranged on the middle frame of the warehouse body.

[0014] Further, the five-axis gantry machining center exchangeable swing head turret, the loosening device includes four loosening blocks and four adjusting square pads, the four adjusting square pads are fixedly arranged at the centers of the four edges of the upper frame respectively, and the loosening blocks are arranged on the adjusting square pads;The thickness of the adjusting square pad is set according to requirements.

[0015] Further, the five-axis gantry machining center exchangeable swing head turret, the inner side of the upper frame is provided with an anti-collision sheet, and the anti-collision sheet is made of nylon or nitrile rubber.

[0016] Further, the five-axis gantry machining center exchangeable swing head turret, the pneumatic cleaning unit includes a pneumatic connector, a pneumatic pipeline and a solenoid valve, the pneumatic connector is installed below the positioning pin, the pneumatic pipeline is connected with the pneumatic connector, the solenoid valve is installed on the pneumatic pipeline, and the solenoid valve is controlled to open and close through a system PLC.

[0017] The beneficial effects of the present application are:

[0018] Modular design is adopted,

[0019] 1、The exchangeable swing head turret of the present application is an important component of the five-axis gantry machining center, effectively ensures the realization of the automatic exchange function of the exchangeable swing head of the five-axis gantry machining center, ensures the adaptability of the five-axis gantry machining center to different part materials and machining processes, and helps to improve the machining efficiency and quality of the machine tool.

[0020] 2、The combination of the positioning and supporting unit, the adjusting mechanism, the detection unit, the pneumatic cleaning unit and the loosening device in the present application ensures the positioning accuracy and reliability of the A-axis swing body exchange, realizes the information transmission of the A-axis swing body and the turret state and the machine tool control system, and ensures the realization of the automatic exchange function.

[0021] 3、The support, the warehouse body, the positioning and supporting unit and the adjusting mechanism in the present application all adopt modular design, improve the capacity and specification expansion capability of the exchangeable swing head turret, and improve the adaptability to different specifications and different numbers of A-axis swing body exchange.

[0022] 4. The steel base of the positioning support unit in this invention is combined with a polytetrafluoroethylene plastic plate, which improves the friction resistance and effectively reduces the damage to the A-axis pendulum support surface after long-term use. Attached Figure Description

[0023] Figure 1 Schematic diagram of an interchangeable tilting head magazine for a five-axis gantry machining center;

[0024] Figure 2 This is a schematic diagram of a double-arm head-swinging support structure;

[0025] Figure 3 This is a schematic diagram of a single-arm swing head support structure;

[0026] Figure 4 To adjust the schematic diagram of the mechanism;

[0027] Figure 5 This is a schematic diagram showing the state of the interchangeable oscillating head placed in the interchangeable oscillating head magazine of a five-axis gantry machining center. Detailed Implementation

[0028] like Figures 1-5 As shown, a five-axis gantry machining center with an interchangeable tilting head includes a support 1, a housing 2, a positioning support unit, a loosening device, a detection unit, and a pneumatic cleaning unit. Multiple housings 2 are arranged in a row on the support 1. The interface between the support 1 and the housings 2 adopts a modular design, which can expand the number and specifications of the housings 2 on the support 1 as needed. The housing 2 includes a vertical frame, an upper frame, a middle frame, and a lower frame. The upper frame, middle frame, and lower frame are fixedly connected as a whole by four vertical frames. A support plate 3 is provided on the middle frame, and the lower frame is fixedly installed on the support 1.

[0029] The positioning support unit includes a support structure 4 and an adjustment mechanism 5. The support structure 4 is fixedly installed on the support plate 3, and the adjustment mechanism 5 is installed on the support plate 3 by fixing screws 18 and is located on the side and end of the support structure 4.

[0030] The bracket 1, the compartment 2, the support plate 3, the support structure 4, and the adjustment mechanism 5 all adopt a modular design;

[0031] The support structure 4 includes a base 12, a positioning pin 13, an adjusting pad 14, and a polytetrafluoroethylene (PTFE) plastic plate 15. The base 12 is fixedly installed on the support plate 3, the adjusting pad 14 is fixedly installed on the base 12, the positioning pin 13 is fixedly installed at the center of the adjusting pad 14, and the PTFE plastic plate 15 is provided on the end face of the base 12 outside the adjusting pad 14. The thickness of the adjusting pad 14 is set according to requirements.

[0032] The support structure 4 is divided into single-arm swing head support structure and double-arm swing head support structure; the single-arm swing head support structure is provided with two positioning pins 13, and the two positioning pins 13 are symmetrically arranged on the seat body 12; the double-arm swing head support structure is provided with one positioning pin 13, and the positioning pin 13 is located at the right part of the seat body 12, and the left part of the seat body 12 is provided with one mounting groove 16; the double-arm swing head support structure needs two as a group of matched use, and the positioning pins 13 are arranged according to the diagonal line;

[0033] The adjusting mechanism 5 includes an adjusting block 17, a tightening screw 20 and a pulling screw 19, the adjusting block 17 is installed on the support plate 3 through a fixing screw 18, the adjusting block 17 is provided with a transverse oblong hole and two threaded holes, and the two threaded holes are respectively located at the two sides of the oblong hole; the side or end of the seat body 12 is provided with a threaded hole, the pulling screw 19 penetrates into the oblong hole and is screwed into the threaded hole, and the two tightening screws 20 are screwed into the two threaded holes respectively and the end heads of the two tightening screws 20 abut against the side or end of the seat body 12;

[0034] By means of the tightening screw 20 and the pulling screw 19, the relative position relationship between the support structure 4 and the bin body 2 is adjusted, and the relative position relationship between the two double-arm swing head support structures matched is adjusted, and then the mounting distance between the two double-arm swing head support structures matched is adjusted, so as to match the positioning hole distance of the A-axis swing body 22 of the exchangeable swing head;

[0035] The detection unit includes an exchangeable swing head in-place detection switch 9 and an exchangeable swing head misplacement prevention detection switch 8; when the support structure of the bin body 2 is the matched double-arm swing head support structure, the exchangeable swing head in-place detection switch 9 is arranged in the mounting groove 16 of one double-arm swing head support structure, and the exchangeable swing head misplacement prevention detection switch 8 is arranged in the mounting groove 16 of the other double-arm swing head support structure; when the support structure of the bin body 2 is the single-arm swing head support structure, the exchangeable swing head in-place detection switch 9 is arranged on the upper frame of the bin body 2, and the exchangeable swing head misplacement prevention detection switch 8 is arranged on the middle frame of the bin body 2; the detection unit is used for detecting the in-place condition of the exchangeable swing head, so as to ensure the exchange reliability of the exchangeable swing head, realize communication with the machine tool control system, utilize PLC for logical control, and realize the automatic exchange function of the A-axis swing body 22 of the exchangeable swing head;

[0036] The loosening device includes four loosening blocks 6 and four adjusting square pads 7, the four adjusting square pads 7 are fixedly arranged at the centers of the four edges of the upper frame respectively, and the loosening block 6 is arranged on the adjusting square pad 7; the thickness of the adjusting square pad 7 is set according to requirements; the loosening device is used for realizing the disengagement between the A-axis swing body 22 and the C-axis swing body 21 of the exchangeable swing head;

[0037] The upper frame is internally provided with an anti-collision sheet 10 made of nylon or butyronitrile rubber to ensure the safety of the swing head exchange.

[0038] The pneumatic cleaning unit comprises a pneumatic joint, a pneumatic pipeline and a solenoid valve. The pneumatic joint is installed below the positioning pin 13. The pneumatic pipeline is connected with the pneumatic joint. The solenoid valve is installed on the pneumatic pipeline. The solenoid valve is controlled to open and close by a system PLC.

[0039] The lower part of the support 1 is provided with a fixed footing assembly 11 which has a height adjustment function and can adjust the overall height and level of the head library.

[0040] As shown in Figure 5 A mechanical anti-loosening mechanism is arranged between the A-axis swing body 22 and the C-axis swing body 21 of the exchangeable swing head. During the process of the A-axis swing body 22 entering the warehouse body 2, four loosening blocks 6 of the loosening device press against the screw slot of the mechanical anti-loosening mechanism to realize the disengagement between the A-axis swing body 22 and the C-axis swing body 21. During the process of the A-axis swing body 22 descending, the pneumatic joint of the pneumatic cleaning unit blows air into the joint hole of the A-axis swing body 22 to clean the joint hole. The air returns from the joint hole to clean the positioning pin 13 and the surrounding thereof. Then, the joint hole of the A-axis swing body 22 is buckled with the positioning pin 13.

Claims

1. A five-axis gantry machining center exchangeable turret headstock, characterized by, The device comprises a support, a warehouse body, a positioning support unit, a loosening device, a detection unit and a pneumatic cleaning unit. A plurality of warehouse bodies are arranged in a row on the support, and the positioning support unit is arranged in the middle of the warehouse body. The loosening device is arranged at the upper end of the warehouse body to realize the disengagement between the A-axis swing body and the C-axis swing body of the interchangeable swing head. The detection unit is arranged on the warehouse body and the positioning support unit to detect the position of the interchangeable swing head. The pneumatic cleaning unit is arranged on the positioning support unit. The warehouse body comprises a stand, an upper frame, a middle frame and a lower frame. The upper frame, the middle frame and the lower frame are fixedly connected by four stands to form an integrated body. The lower frame is fixedly arranged on the support. The middle frame is provided with a support plate, and the positioning support unit is arranged on the support plate. The loosening device is arranged at the upper end of the upper frame. The positioning support unit comprises a support structure and an adjusting mechanism. The support structure is fixedly installed on the support plate. The adjusting mechanism is installed on the support plate by a fixing screw and located at the side and end of the support structure. The support structure comprises a seat body, a positioning pin, an adjusting round pad and a polytetrafluoroethylene plastic plate. The seat body is fixedly installed on the support plate. The adjusting round pad is fixedly arranged on the seat body. The positioning pin is fixedly arranged at the center of the adjusting round pad. The polytetrafluoroethylene plastic plate is arranged on the end face of the seat body outside the adjusting round pad. The thickness of the adjusting round pad is set according to requirements. The support structure is divided into single-arm swing head support structure and double-arm swing head support structure. The single-arm swing head support structure is provided with two positioning pins which are symmetrically arranged on the seat body. The double-arm swing head support structure is provided with one positioning pin which is located at the right part of the seat body. The left part of the seat body is provided with one mounting groove. The double-arm swing head support structure needs to be used in pairs. The positioning pins are arranged according to the diagonal line.

2. The five-axis gantry machining center exchangeable turret head of claim 1, wherein, The adjusting mechanism comprises an adjusting block, a jacking screw and a pulling screw. The adjusting block is installed on the support plate by a fixing screw. The adjusting block is provided with a horizontal long circular through hole and two threaded holes. The two threaded holes are respectively located at the two sides of the long circular through hole. The side or end of the seat body is provided with a threaded hole. The pulling screw is inserted into the long circular through hole and screwed into the threaded hole. The two jacking screws are screwed into the two threaded holes respectively, and the ends of the two jacking screws are located on the side or end of the seat body.

3. The five-axis gantry machining center exchangeable turret head of claim 1, wherein, The detection unit comprises interchangeable swing head position detection switches and interchangeable swing head anti-misplacement detection switches. When the support structure of the warehouse body is a paired double-arm swing head support structure, the interchangeable swing head position detection switch is arranged in the mounting groove of one double-arm swing head support structure, and the interchangeable swing head anti-misplacement detection switch is arranged in the mounting groove of the other double-arm swing head support structure. When the support structure of the warehouse body is a single-arm swing head support structure, the interchangeable swing head position detection switch is arranged in the upper frame of the warehouse body, and the interchangeable swing head anti-misplacement detection switch is arranged in the middle frame of the warehouse body.

4. The five-axis gantry machining center exchangeable turret head of claim 1, wherein, The loosening device comprises four loosening blocks and four adjusting square pads. The four adjusting square pads are fixedly arranged at the center of the four edges of the upper frame. The loosening blocks are arranged on the adjusting square pads. The thickness of the adjusting square pad is set according to requirements.

5. The five-axis gantry machining center exchangeable turret head of claim 1, wherein, The upper frame is internally provided with an anti-collision sheet made of nylon or butyronitrile rubber.

6. The five-axis gantry machining center exchangeable turret head of claim 1, wherein, The pneumatic cleaning unit comprises a pneumatic joint, a pneumatic pipeline and a solenoid valve, the pneumatic joint is installed below the positioning pin, the pneumatic pipeline is connected with the pneumatic joint, and the solenoid valve is installed on the pneumatic pipeline, and the solenoid valve is controlled to open and close through a system PLC.

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