Conveying device of numerical control machine tool

Abstract

The invention belongs to the technical field of conveying equipment, particularly relates to a conveying device of a numerical control machine tool, and aims to solve the problem that an existing numerical control machine tool does not have a conveying structural component to complete taking and placing of a machined part. The conveying device comprises a cleaning machine box, and horizontally-arranged sliding rails are fixed to the two sides of the top of the cleaning machine box correspondingly; a cleaning cavity is formed in the top of the cleaning machine box, a penetrating part outlet cavity is formed in one end of the cleaning machine box, and the part outlet cavity communicates with the interior of the cleaning cavity. According to the numerical control machine tool, a machined part containing plate and a machined part on the top are lifted through four lifting lead screws, at the moment, the lifted machined part is clamped and lifted through two clamping arc plates, a second fixing support moves, the machined part is conveyed to the position of a clamp of the numerical control machine tool, and after the machined part is stably clamped by an operator through the clamp of the numerical control machine tool, the machined part is conveyed to the numerical control machine tool. The clamping arc plate can be removed, and the conveying device is moved out of the machining bin of the machine tool.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a conveying device for a numerically controlled machine tool. Background Art

[0002] CNC machine tools are a type of equipment used for processing metal parts. They can perform cutting processing on inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary taper angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads. They can also perform grooving, drilling, reaming, boring and boring. In the use of CNC machine tools, the workpiece is fixed on the rotating shaft fixture of the CNC machine tool, and the rotating shaft drives the workpiece to rotate, and the workpiece is processed by the tool.

[0003] Existing CNC machine tools have the following problems during use: during the processing of the workpiece, the CNC machine tool needs to lift the workpiece to the processing area of ​​the CNC machine tool and fix it, and after processing, it needs to be taken out. The lifting work is achieved by a crane in the workshop, but when there are many CNC machine tools in the workshop, the crane cannot meet the simultaneous lifting work. The current CNC machine tools do not have conveying structural components to complete the picking and placing of the workpiece, and the existing technology is not easy to solve such problems. Therefore, there is an urgent need for a conveying device for CNC machine tools to solve the above problems. Summary of the Invention

[0004] Based on the technical problem that current CNC machine tools do not have a conveying structure to complete the picking and placing of workpieces, the present invention proposes a conveying device for CNC machine tools.

[0005] The top of the cleaning machine is provided with a cleaning mechanism, and the cleaning mechanism has a cleaning function, and the cleaning mechanism has a cleaning function.

[0006] Preferably, an isolation rolling door is installed between the cleaning chamber and the discharge chamber. The isolation rolling door is slidably engaged with the inner walls on both sides of the cleaning chassis, and the isolation rolling door is rolled up inside the cleaning chassis.

[0007] Preferably, a top fixing plate is fixed at the top of the cleaning chamber, and the four corners of the top fixing plate are fixed to the tops of the four lifting screws via bearings.

[0008] Preferably, the bottom of the discharge chamber is provided with roller grooves distributed in an array, and auxiliary discharge rollers are installed in the roller grooves via bearings.

[0009] Preferably, the grabbing mechanism includes a pulley bracket that is rollingly mounted on the top of the slide rail, and two pulley brackets are provided on the top of each slide rail, the tops of the four pulley brackets are fixed with a first fixed bracket by bolts, the top inner walls of the four first fixed brackets are nested with a first lifting push rod, the tops of the four first lifting push rods are fixed with a first lifting bracket by bolts, and the same grabbing chassis is fixed in the middle position of the four first lifting brackets.

[0010] Preferably, two first slide grooves are provided at the bottom of the grabbing chassis, a grabbing sliding plate is slidably installed at the bottom of the grabbing chassis, two grabbing sliding plate sliders are provided on the top of the grabbing sliding plate, the two grabbing sliding plate sliders are respectively slidably engaged with the two first slide grooves, a second slide groove is provided in the middle of the bottom of the grabbing sliding plate, and a second fixed bracket is slidably engaged at the bottom of the second slide groove.

[0011] Preferably, four second electric push rods are nested and fixed on the inner wall of the bottom of the second fixed bracket, and the four second electric push rods are installed vertically downward, and the same second lifting bracket is installed between the bottoms of the four second electric push rods, and vertically arranged clamping arc plates are hinged on both sides of the bottom of the second lifting bracket, and array-distributed grabbing suction cups are installed on the inner walls of the two clamping arc plates, and two extension arms are fixed on both sides of the second lifting bracket, and two third electric push rods are hinged on the tops of the two clamping arc plates, and the third electric push rods are hinged to the top extension arms.

[0012] Preferably, a mounting groove is provided on the top of one of the fixed racks, and a fixed rack is installed inside the mounting groove, a second driving motor is fixed to the inner wall of the first slide groove located at the top of the fixed rack, a first gear is fixed to the output shaft of the second driving motor, and the first gear is meshed with the fixed rack, a second fixed bracket slider is installed on the top of the second fixed bracket, and the second fixed bracket slider is slidingly engaged with the second slide groove, a third driving motor is installed on the inner wall of the second fixed bracket slider, driving rubber wheels are installed on both sides of the output shaft of the third driving motor, and the two driving rubber wheels are respectively rollingly installed on the two sides of the second slide groove.

[0013] Preferably, the cleaning chassis is provided with an array-distributed mobile cleaning mechanism at the bottom of the cleaning chamber, and the mobile cleaning mechanism includes a transverse slide groove opened at the bottom of the cleaning chamber, and a transverse screw is installed between the inner walls on both sides of the transverse slide groove through bearings, and a transverse slider is connected to the internal sliding card of the transverse slide groove, and the transverse slider and the transverse screw are threadedly connected, and a third drive motor is fixed to the shaft end of the transverse screw rod, and the third drive motor is fixed to the inside of the cleaning chassis.

[0014] Preferably, a servo is installed on the top inner wall of the transverse slider, and the servo output shaft protrudes and extends to the top of the transverse slider. The output shaft of the servo is installed with a rotating seat, and a vertically arranged cleaning vertical rod is fixed on the top of the rotating seat. The side wall of the cleaning vertical rod is installed with cleaning nozzles distributed in a vertical array.

[0015] The beneficial effects of the present invention are:

[0016] 1. The conveying device of the CNC machine tool lifts the workpiece placement plate and the workpiece on the top through the four lifting screws. At this time, the lifted workpiece is clamped and lifted by two clamping arc plates, and the second fixed bracket moves to deliver the workpiece to the fixture position of the CNC machine tool. After the operator clamps the workpiece stably through the fixture of the CNC machine tool, the clamping arc plates can be removed and the conveying device moves out of the processing chamber of the machine tool.

[0017] 2. The conveying device of the CNC machine tool, during the discharge process of the workpiece, the second fixed bracket moves the clamping arc plate into the processing chamber of the stopped CNC machine tool, and after the processed workpiece is clamped and fixed by the two clamping arc plates, the operator releases the clamp, and after the workpiece is separated from the CNC machine tool, the processed workpiece is moved to the top of the workpiece placement plate through the conveying device, and the workpiece placement plate conveys the top workpiece downward, and in the process of descending, the side cleaning brackets on both sides spray cleaning fluid to clean the workpiece. After descending to the horizontal position of the workpiece discharge chamber, the workpiece is moved out of the auxiliary device by the workpiece discharge auxiliary wheel.

[0018] 3. The conveying device of the CNC machine tool uses a cleaning vertical rod to clean the workpiece more carefully. When the workpiece is located on the top of the workpiece placement plate, the cleaning vertical rod can pass through the liquid hole. The cleaning vertical rods arranged around the workpiece can continuously flush the workpiece, thereby improving the cleaning effect. When the workpiece is located at the top, the cleaning vertical rod moves to the position of the liquid hole where no interference will occur. When the workpiece is lowered as the workpiece placement plate descends, no obstruction or interference will occur. The rotating seat at the bottom of the cleaning vertical rod is rotated by the servo to adjust the flushing direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of a conveying device for a CNC machine tool proposed by the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of a local structure of a cleaning case of a conveying device for a CNC machine tool proposed by the present invention;

[0021] Figure 3 This is a schematic structural diagram of a gripping mechanism of a conveying device for a CNC machine tool proposed by the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of a local structure of a cleaning chassis in a second embodiment of a conveying device for a CNC machine tool proposed by the present invention;

[0023] Figure 5 In the second embodiment of the conveying device of a CNC machine tool proposed by the present invention Figure 4 Schematic diagram of the enlarged structure of part A.

[0024] In the figure: 1. Cleaning chassis; 2. Slide rail; 3. Pulley bracket; 4. First fixed bracket; 5. Clamping arc plate; 6. Second fixed bracket; 7. Grabbing chassis; 8. First lifting bracket; 9. Fixed rack; 10. Grabbing sliding plate slider; 11. Grabbing sliding plate; 12. Side cleaning bracket; 13. Cleaning chamber; 14. Workpiece placement plate; 15. Auxiliary roller for workpiece discharge; 16. Isolation rolling door; 17. Workpiece discharge chamber; 18. Top fixed plate; 19. Lifting screw; 20. First lifting push rod; 21. Second slide; 22. Second lifting bracket; 23. Grabbing suction cup; 24. Third electric push rod; 25. Second electric push rod; 26. Liquid hole; 27. Transverse screw; 28. Transverse slide; 29. ​​Cleaning vertical rod; 30. Rotating seat; 31. Cleaning nozzle; 32. Transverse slider. DETAILED DESCRIPTION

[0025] Example 1: Reference Figure 1-Figure 3A conveying device for a CNC machine tool includes a cleaning chassis 1, horizontally arranged slide rails 2 are fixed on both sides of the top of the cleaning chassis 1, a cleaning chamber 13 is opened on the top of the cleaning chassis 1, and a through-piece discharge chamber 17 is opened at one end of the cleaning chassis 1, and the piece discharge chamber 17 is communicated with the interior of the cleaning chamber 13, a grabbing mechanism is provided on the top of the two slide rails 2, and side cleaning brackets 12 are fixed on the top of the inner walls of both sides of the cleaning chamber 13 of the cleaning chassis 1, and the cleaning chassis 1 is located in the cleaning chamber. Four lifting screws 19 are fixed to the bottom of the chamber 13 through bearings, and the first drive motor is fixed to the bottom of the four lifting screws 19. The first drive motor is installed inside the cleaning chassis 1. A workpiece placement plate 14 is installed between the four lifting screws 19. The four lifting screws 19 are respectively located at the four corners of the cleaning chamber 13, and the four lifting screws 19 are all threadedly connected to the workpiece placement plate 14. The top of the workpiece placement plate 14 is provided with an array of liquid holes 26.

[0026] Furthermore, an isolation rolling door 16 is installed between the cleaning chamber 13 and the discharge chamber 17. The isolation rolling door 16 is slidably engaged with the inner walls on both sides of the cleaning chassis 1, and the isolation rolling door 16 is retracted inside the cleaning chassis 1; the isolation rolling door 16 is in a closed state during the process of lowering and cleaning the workpiece to prevent the cleaning oil from splashing into the discharge chamber 17.

[0027] Furthermore, a top fixing plate 18 is fixed at the top of the cleaning chamber 13 , and the four corners of the top fixing plate 18 are fixed to the tops of the four lifting screws 19 via bearings.

[0028] Furthermore, an array of roller grooves is provided at the bottom of the discharge chamber 17, and auxiliary discharge rollers 15 are installed in the roller grooves via bearings.

[0029] Furthermore, the grabbing mechanism includes a pulley bracket 3 that is rollingly mounted on the top of the slide rail 2, and two pulley brackets 3 are provided on the top of each slide rail 2. The tops of the four pulley brackets 3 are fixed with a first fixed bracket 4 by bolts, and the top inner walls of the four first fixed brackets 4 are nested with a first lifting push rod 20. The tops of the four first lifting push rods 20 are fixed with a first lifting bracket 8 by bolts, and the same grabbing chassis 7 is fixed in the middle position of the four first lifting brackets 8.

[0030] Furthermore, two first slide grooves are provided at the bottom of the grabbing chassis 7, and a grabbing sliding plate 11 is slidably installed at the bottom of the grabbing chassis 7. Two grabbing sliding plate sliders 10 are provided on the top of the grabbing sliding plate 11. The two grabbing sliding plate sliders 10 are respectively slidably connected to the two first slide grooves, and a second slide groove 21 is provided in the middle of the bottom of the grabbing sliding plate 11. The bottom of the second slide groove 21 is slidably connected to the second fixed bracket 6.

[0031] Furthermore, four second electric push rods 25 are nested and fixed on the inner wall of the bottom of the second fixed bracket 6, and the four second electric push rods 25 are installed vertically downward. The same second lifting bracket 22 is installed between the bottoms of the four second electric push rods 25, and vertically arranged clamping arc plates 5 are hinged on both sides of the bottom of the second lifting bracket 22. The inner walls of the two clamping arc plates 5 are installed with array-distributed grabbing suction cups 23. Two extension arms are fixed on both sides of the second lifting bracket 22, and two third electric push rods 24 are hinged on the tops of the two clamping arc plates 5, and the third electric push rods 24 are hingedly installed with the top extension arms; the extension and contraction of the third electric push rods 24 realizes the adjustment of the two clamping arc plates 5 to clamp the workpiece, and the inside of the clamping arc plate 5 is installed with a grabbing suction cup 23, which can suck the surface of the workpiece together after clamping, thereby improving the adsorption force of the clamping arc plate 5 and ensuring the stability of the clamping arc plate 5 on the workpiece during the clamping process.

[0032] Furthermore, a mounting groove is provided on the top of one of the fixed racks 9, and a fixed rack 9 is installed inside the mounting groove. A second drive motor is fixed to the inner wall of the first slide groove located at the top of the fixed rack 9, and a first gear is fixed to the output shaft of the second drive motor, and the first gear is meshed with the fixed rack 9. A second fixed bracket slider is installed on the top of the second fixed bracket 6, and the second fixed bracket slider is slidingly engaged with the second slide groove 21. A third drive motor is installed on the inner wall of the second fixed bracket slider, and drive rubber wheels are installed on both sides of the output shaft of the third drive motor. The two drive rubber wheels are respectively rollingly installed on both sides of the second slide groove 21.

[0033] When the present invention is used: the entire conveying device is moved to one end of the CNC machine tool near the material door. During installation, it is necessary to ensure that the middle of the horizontal movement of the gripping mechanism coincides with the center line of the workpiece rotation axis of the CNC machine tool, so as to ensure accurate clamping when assisting the CNC machine tool in conveying the workpiece. During the use of the conveying device of the CNC machine tool, the workpiece of the CNC machine tool is fed before processing and removed after processing, and the processed workpiece is cleaned.

[0034] When placing the workpiece, the operator moves the workpiece to one end of the conveyor device. The workpiece can be lifted directly by the lifting vehicle, or the workpiece can be moved to the top of the workpiece placement plate 14 through the workpiece discharge auxiliary roller 15 at the bottom of the workpiece discharge chamber 17. The workpiece placement plate 14 and the workpiece on the top are lifted by four lifting screws 19. At this time, the lifted workpiece is clamped and lifted by the two clamping arc plates 5, and the second fixed bracket 6 is moved to send the workpiece to the fixture position of the CNC machine tool. After the operator clamps the workpiece stably with the fixture of the CNC machine tool, the clamping arc plates 5 can be removed, and the conveyor device moves out of the processing chamber of the machine tool and waits for commands.

[0035] During the discharge process of the workpiece, the second fixed bracket 6 moves the clamping arc plate 5 into the processing chamber of the stopped CNC machine tool. After the processed workpiece is clamped and fixed by the two clamping arc plates 5, the operator releases the clamp. After the workpiece is separated from the CNC machine tool, the processed workpiece is moved to the top of the workpiece placement plate 14 by the conveying device. The workpiece placement plate 14 conveys the workpiece on the top downward, and in the process of descending, the side cleaning brackets 12 on both sides spray cleaning liquid to clean the workpiece. After descending to the horizontal position of the workpiece discharge chamber 17, the workpiece is moved out of the auxiliary device by the workpiece discharge auxiliary wheel 15.

[0036] During the cleaning process of the workpiece, the workpiece can be cleaned through the top by the side cleaning brackets 12 on both sides.

[0037] Example 2: Reference Figure 1-Figure 5 , a conveying device for a CNC machine tool. Compared with Example 1, this embodiment also includes a cleaning chassis 1 provided with an array-distributed mobile cleaning mechanism at the bottom of the cleaning chamber 13. The mobile cleaning mechanism includes a transverse slide 28 opened at the bottom of the cleaning chamber 13. A transverse screw 27 is installed between the inner walls on both sides of the transverse slide 28 through bearings. A transverse slider 32 is slidingly connected to the internal sliding card of the transverse slide 28. The transverse slider 32 and the transverse screw 27 are threadedly connected. A third drive motor is fixed to the shaft end of the transverse screw 27, and the third drive motor is fixed to the inside of the cleaning chassis 1.

[0038] Furthermore, a servo is installed on the top inner wall of the transverse slider 32, and the servo output shaft protrudes and extends to the top of the transverse slider 32. The output shaft of the servo is installed with a rotating seat 30, and a vertically arranged cleaning vertical rod 29 is fixed on the top of the rotating seat 30. The side wall of the cleaning vertical rod 29 is installed with a vertically arrayed cleaning nozzle 31.

[0039] When the present invention is used: the workpiece is cleaned more carefully by the cleaning vertical rod 29. When the workpiece is located at the top of the workpiece placement plate 14, the cleaning vertical rod 29 can pass through the liquid hole 26. The cleaning vertical rods 29 arranged around the workpiece can continuously flush the workpiece, thereby improving the cleaning effect. When the workpiece is located at the top, the cleaning vertical rod 29 moves to the position of the liquid hole 26 where no interference will be caused. When the workpiece is in the process of descending with the workpiece placement plate 14, no obstruction or interference will be caused. The rotating seat 30 at the bottom of the cleaning vertical rod 29 is rotated by the servo to adjust the flushing direction.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A conveying device for a CNC machine tool, comprising a cleaning chassis (1), wherein horizontally arranged slide rails (2) are fixed at both sides of the top of the cleaning chassis (1), characterized in that: The cleaning chamber (13) is provided on the top of the cleaning chassis (1), and a through-piece discharging chamber (17) is provided at one end of the cleaning chassis (1), and the discharging chamber (17) is communicated with the interior of the cleaning chamber (13). A piece-grabbing mechanism is provided on the top of the two slide rails (2). The cleaning chassis (1) is located at the top of the inner walls on both sides of the cleaning chamber (13) and is fixed with side cleaning brackets (12). The cleaning chassis (1) is located at the bottom of the cleaning chamber (13) and is fixed with four lifting brackets through bearings. The first drive motor is fixed to the bottom of each of the four lifting screw rods (19), and the first drive motor is installed inside the cleaning chassis (1). A workpiece placement plate (14) is installed between the four lifting screw rods (19). The four lifting screw rods (19) are respectively located at the four corner positions of the cleaning chamber (13), and the four lifting screw rods (19) are threadedly connected to the workpiece placement plate (14). The top of the workpiece placement plate (14) is provided with array-distributed penetrating liquid holes (26).

2. The conveying device for a CNC machine tool according to claim 1, characterized in that: An isolation rolling door (16) is installed between the cleaning chamber (13) and the discharge chamber (17). The isolation rolling door (16) is slidably engaged with the inner walls on both sides of the cleaning chassis (1), and the isolation rolling door (16) is rolled up inside the cleaning chassis (1).

3. The conveying device for a CNC machine tool according to claim 1, characterized in that: A top fixing plate (18) is fixed at the top of the cleaning chamber (13), and the four corners of the top fixing plate (18) are fixed to the tops of four lifting screw rods (19) via bearings.

4. The conveying device for a CNC machine tool according to claim 1, characterized in that: The bottom of the discharge chamber (17) is provided with roller grooves distributed in an array, and auxiliary discharge rollers (15) are installed in the roller grooves via bearings.

5. The conveying device for a CNC machine tool according to claim 1, characterized in that: The grabbing mechanism includes a pulley bracket (3) that is rotatably mounted on the top of the slide rail (2), and two pulley brackets (3) are provided on the top of each slide rail (2), the tops of the four pulley brackets (3) are fixed with a first fixed bracket (4) by bolts, the top inner walls of the four first fixed brackets (4) are nested with a first lifting push rod (20), the tops of the four first lifting push rods (20) are fixed with a first lifting bracket (8) by bolts, and the middle position of the four first lifting brackets (8) is fixed with the same grabbing chassis (7).

6. The conveying device for a CNC machine tool according to claim 5, characterized in that: Two first slide grooves are provided at the bottom of the grabbing case (7), a grabbing sliding plate (11) is slidably installed at the bottom of the grabbing case (7), two grabbing sliding plate sliders (10) are provided on the top of the grabbing sliding plate (11), and the two grabbing sliding plate sliders (10) are respectively slidably engaged with the two first slide grooves, a second slide groove (21) is provided in the middle of the bottom of the grabbing sliding plate (11), and a second fixing bracket (6) is slidably engaged at the bottom of the second slide groove (21).

7. The conveying device for a CNC machine tool according to claim 6, characterized in that: Four second electric push rods (25) are nested and fixed on the inner wall of the bottom of the second fixed bracket (6), and the four second electric push rods (25) are installed vertically downward. The same second lifting bracket (22) is installed between the bottoms of the four second electric push rods (25). Vertically arranged clamping arc plates (5) are hinged on both sides of the bottom of the second lifting bracket (22). The inner walls of the two clamping arc plates (5) are installed with array-distributed grabbing suction cups (23). Two extension arms are fixed on both sides of the second lifting bracket (22). The tops of the two clamping arc plates (5) are hinged with two third electric push rods (24), and the third electric push rods (24) are hinged to the extension arms at the top.

8. The conveying device for a CNC machine tool according to claim 6, characterized in that: A mounting groove is provided on the top of one of the fixed racks (9), and a fixed rack (9) is installed inside the mounting groove. A second drive motor is fixed to the inner wall of the first slide groove located at the top of the fixed rack (9), and a first gear is fixed to the output shaft of the second drive motor, and the first gear is meshed with the fixed rack (9). A second fixed bracket slider is installed on the top of the second fixed bracket (6), and the second fixed bracket slider is slidably engaged with the second slide groove (21). A third drive motor is installed on the inner wall of the second fixed bracket slider, and drive rubber wheels are installed on both sides of the output shaft of the third drive motor. The two drive rubber wheels are respectively rolled and installed at the two sides of the second slide groove (21).

9. The conveying device for a CNC machine tool according to claim 1, characterized in that: The cleaning chassis (1) is provided with an array of mobile cleaning mechanisms at the bottom of the cleaning chamber (13), and the mobile cleaning mechanisms include a transverse slide (28) opened at the bottom of the cleaning chamber (13), a transverse screw (27) is installed between the inner walls of both sides of the transverse slide (28) through bearings, a transverse slider (32) is slidingly connected inside the transverse slide (28), and the transverse slider (32) is threadedly connected to the transverse screw (27), and a third drive motor is fixed to the shaft end of the transverse screw (27), and the third drive motor is fixed inside the cleaning chassis (1).

10. The conveying device for a CNC machine tool according to claim 9, characterized in that: A steering gear is installed on the top inner wall of the transverse sliding block (32), and the steering gear output shaft protrudes and extends to the top of the transverse sliding block (32). The steering gear output shaft is installed on a rotating seat (30), and a vertically arranged cleaning vertical rod (29) is fixed on the top of the rotating seat (30). The side wall of the cleaning vertical rod (29) is installed with cleaning nozzles (31) distributed in a vertical array.

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