Numerically-controlled lathe facilitating workpiece loading and unloading

Abstract

The numerical control lathe comprises a body, air guide grooves are symmetrically formed in the two sides of the body, each air guide groove comprises a first acceleration part, and an air inlet and an air outlet of each first acceleration part are communicated with an air guide part and a second acceleration part respectively. According to the numerical control lathe facilitating workpiece loading and unloading, airflow flowing into the air guide groove is accelerated multiple times through the air guide part, the first acceleration part and the second acceleration part, and chippings adsorbed on the surfaces of the workpiece and the clamp are blown off to the body through the accelerated airflow. The workpiece and the clamp do not need to be subjected to scrap cleaning treatment, the workpiece loading and unloading efficiency is effectively improved, the machining efficiency is improved, scraps can be conveniently collected and reused in a centralized mode, materials are saved, and the device is more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to a numerically controlled lathe, in particular to a numerically controlled lathe which is convenient for loading and unloading workpieces. Background Art

[0002] A CNC lathe is a machine tool used for cutting the surface of a workpiece.

[0003] Publication number CN212682443U, publication date 2021-03-12, discloses a CNC lathe that is convenient for loading and unloading workpieces. A discharge plate is provided on the front side of the CNC lathe body, and a pair of openable transparent protective covers are provided on the front side of the CNC lathe body above the discharge plate. A workbench and a workbench pushing cylinder are provided in the CNC lathe body. The workbench is movably installed in the CNC lathe body through a pair of first workbench guide rails. The workbench pushing cylinder is installed on the CNC lathe body and drives the workbench to move forward and backward on the first workbench guide rail.

[0004] In the prior art including the above-mentioned patent, the workpiece is moved out of the lathe by a discharge plate and a guide rail, thereby facilitating the loading and unloading of the workpiece. However, after processing, debris will be adsorbed on the surface of the workpiece and the fixture, and the staff needs to clean the debris before loading and unloading the workpiece, and the loading and unloading operation of the workpiece takes a long time. Utility Model Content

[0005] The utility model aims to provide a numerically controlled lathe which is convenient for loading and unloading workpieces, and is used to solve the problem of long operation time of loading and unloading workpieces in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a CNC lathe convenient for loading and unloading workpieces, comprising:

[0007] The main body has air guide grooves symmetrically formed on both sides thereof, the air guide grooves comprising a first acceleration part, and the air inlet and the air outlet of the first acceleration part are respectively connected to the air guide part and the second acceleration part;

[0008] The air guide portion is arranged in a trumpet shape, the first acceleration portion and the second acceleration portion are arranged in a cone shape, and the cross-sectional area gradually decreases from the air inlet to the air outlet.

[0009] Preferably, it also includes workpiece inlets and outlets symmetrically opened on both sides of the main body, the top of which is an inclined surface with an angle of degrees to the horizontal plane, and the air guide portion is located on the inclined surface.

[0010] Preferably, a feeding mechanism is further included, which includes a slidably arranged threaded seat, on which a chuck is symmetrically arranged.

[0011] Preferably, a first closing plate and a second closing plate are provided on the threaded seat, and the first closing plate is symmetrically arranged with respect to the second closing plate.

[0012] Preferably, a cleaning brush is fixedly arranged at the bottom of the threaded seat.

[0013] Preferably, it also includes an air blowing outlet located at the air outlet of the second acceleration part, on which a blocking block is slidably arranged.

[0014] In the above technical scheme, the utility model provides a CNC lathe that is convenient for loading and unloading workpieces, and has the following beneficial effects: the airflow flowing into the air guide groove is accelerated multiple times by the air guide part, the first acceleration part and the second acceleration part, and the accelerated airflow is used to blow the debris adsorbed on the surface of the workpiece and the fixture onto the main body. Compared with the prior art, when loading and unloading the workpiece, there is no need to clean the workpiece and the fixture, which effectively improves the efficiency of loading and unloading the workpiece, improves the processing efficiency, and facilitates the centralized collection and reuse of the debris, saving materials and being more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of a three-dimensional structure provided for an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of a front cross-sectional structure provided for an embodiment of the utility model;

[0018] Figure 3 A schematic diagram of the structure of the present invention;

[0019] Figure 4 A schematic diagram of the cross-sectional structure of a workpiece moving process provided by an embodiment of the utility model;

[0020] Figure 5 The B structure schematic diagram provided for the embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Base; 11. Chip collecting groove; 111. Chip collecting port; 2. Main body; 21. Workpiece entrance and exit; 3. Feeding mechanism; 31. Motor; 32. Threaded seat; 33. First closing plate; 34. Threaded rod; 35. Second closing plate; 36. Cleaning brush; 4. Chuck; 5. Air guide groove; 51. Air guide part; 52. First acceleration part; 53. Second acceleration part; 54. Air outlet; 6. Air outlet blocking mechanism; 61. First push block; 611. Groove; 62. Blocking block; 621. Through groove. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-5 As shown, a CNC lathe convenient for loading and unloading workpieces comprises:

[0025] The body 2 has air guide grooves 5 symmetrically formed on both sides thereof. The air guide grooves 5 include a first acceleration portion 52. The air inlet and the air outlet of the first acceleration portion 52 are respectively connected to an air guide portion 51 and a second acceleration portion 53.

[0026] The air guide portion 51 is arranged in a trumpet shape, and the first acceleration portion 52 and the second acceleration portion 53 are arranged in a cone shape, and the cross-sectional area gradually decreases from the air inlet to the air outlet.

[0027] Specifically, Figures 2 to 4 As shown, it also includes workpiece inlets and outlets 21 symmetrically opened on both sides of the body 2, the top of which is an inclined surface with an angle of 45° to the horizontal plane, and the air guide 51 is located on the inclined surface. When the workpiece is processed, the workpiece inlet and outlet 21 is opened. At this time, since the air mass cannot be accumulated in large quantities, the air will accelerate from the open space outside the body 2 through the workpiece inlet and outlet 21 to the internal space of the body 2. Since the top of the workpiece inlet and outlet 21 is at an angle of 45° to the horizontal plane, and the air guide 51 is located on the inclined surface, when the air accelerates to flow through the workpiece inlet and outlet 21, part of the airflow will flow to the inclined surface at the top of the workpiece inlet and outlet 21 and enter the air guide groove 5.

[0028] Furthermore, since the air guide portion 51 is configured in a trumpet shape and its inner wall is arc-shaped, the airflow flowing toward the top inclined surface of the workpiece entrance and exit 21 first passes through the air guide portion 51 into the air guide groove 5, and flows along the inner wall of the air guide portion 51 toward the first acceleration portion 52. Since the air guide portion 51 is trumpet-shaped, the truss area of ​​the air inlet of the air guide portion 51 is larger than the cross-sectional area at the air outlet. Following the principle that the flow velocity is greater at a smaller cross-section and the flow velocity is smaller at a larger cross-section, the airflow is initially accelerated when passing through the air guide portion 51.

[0029] Furthermore, the airflow is initially accelerated by the air guide portion 51 and then flows into the first acceleration portion 52. Since the first acceleration portion 52 is arranged in a conical shape and the cross-sectional area from the air inlet to the air outlet gradually decreases, the airflow is accelerated for a second time when flowing through the first acceleration portion 52 and flows to the curved pipe section at the air outlet of the first acceleration portion 52. The airflow passes through the guide of the curved pipe section and flows to the second acceleration portion 53.

[0030] Furthermore, the airflow that has been accelerated for the second time by the first acceleration section 52 enters the second acceleration section 53. Since the second acceleration section 53 is also arranged in a conical shape and the cross-sectional area from the air inlet to the air outlet gradually decreases, the flow is accelerated again and blown out after passing through the second acceleration section 53. When the workpiece moves out and passes through the air outlet of the second acceleration section 53, the accelerated airflow blows toward the workpiece, thereby blowing off the debris adsorbed on the surface of the workpiece and the fixture and dropping it into the main body 2.

[0031] In the above technology, the airflow flowing into the air guide groove 5 is accelerated multiple times by the air guide part 51, the first acceleration part 52 and the second acceleration part 53, and the accelerated airflow is used to blow the debris adsorbed on the surface of the workpiece and the fixture onto the main body 2. Compared with the existing technology, when loading and unloading the workpiece, there is no need to clean the workpiece and the fixture, which effectively improves the efficiency of loading and unloading the workpiece, improves the processing efficiency, and facilitates the centralized collection and reuse of the debris, saving materials and being more environmentally friendly.

[0032] As a further embodiment of the present invention, the present invention further comprises a feeding mechanism 3 , which comprises a slidably arranged threaded seat 32 , on which a chuck 4 is symmetrically arranged.

[0033] Specifically, two workpieces are pre-fixed on symmetrically arranged chucks 4. During processing, one of the workpieces is first located inside the main body 2 for processing, and the other workpiece is located outside the main body 2 waiting for processing. After processing is completed, the workpiece entrances and exits 21 on both sides of the main body 2 are opened, and the motor 31 is started to drive the threaded rod 34 fixed at its output end to rotate, thereby driving the threaded seat 32 threadedly connected to the threaded rod 34 to move, thereby driving the two workpieces to move at the same time, and the processed workpiece is moved out of the main body 2 through the workpiece entrance and exit 21 on the side away from the unprocessed workpiece, and the unprocessed workpiece enters the main body 2 through the workpiece entrance and exit 21 on the other side for processing, and the workpiece entrances and exits 21 on both sides are closed, and the workpiece to be processed is processed. At the same time, the processed workpiece is unloaded and a new workpiece to be processed is loaded, thereby realizing processing while loading and unloading workpieces, which is convenient for unloading of workpieces, saves loading and unloading time, and further improves processing efficiency.

[0034] As a further embodiment of the present invention, a first closing plate 33 and a second closing plate 35 are provided on the threaded seat 32 , and the first closing plate 33 is symmetrically arranged with respect to the second closing plate 35 .

[0035] Specifically, the chuck 4 is located between the first closing plate 33 and the second closing plate 35. When the starting motor 31 drives the threaded rod 34 fixed at its output end to rotate, the threaded seat 32 threadedly connected to the threaded rod 34 is driven to move, thereby driving the two workpieces to move at the same time. The processed workpiece is moved out of the body 2 through the workpiece entrance and exit 21 on the side away from the unprocessed workpiece, and the unprocessed workpiece enters the body 2 through the workpiece entrance and exit 21 on the other side for processing. During the process, the first closing plate 33 and the second closing plate 35 are also moved synchronously with the threaded seat 32 because they are arranged on the threaded seat 32. When the threaded seat 32 moves to the predetermined position, the first closing plate 33 and the second closing plate 35 on both sides of the workpiece entering the body 2 are just located at the workpiece entrance and exit 21 on both sides of the body 2 and block the workpiece entrance and exit 21, thereby realizing the simultaneous removal of the workpiece and the workpiece entrance and exit 21. No additional driving source is required to drive the opening and closing of the workpiece entrance and exit 21, which not only simplifies the structure and reduces the manufacturing cost, but also realizes the simultaneous removal of the workpiece and the workpiece entrance and exit 21, saving the time for loading and unloading the workpiece and further improving the processing efficiency.

[0036] As a further embodiment of the present invention, a cleaning brush 36 is fixedly disposed at the bottom of the threaded seat 32 .

[0037] Specifically, after the workpiece is processed, the threaded seat 32 moves to drive the cleaning brush 36 to move. The cleaning brush 36 moves to clean the debris that falls on the bottom of the main body 2, and the debris is swept to the chip collecting port 111 by the cleaning brush 36 and falls into the chip collecting groove 11 of the base 1 for collection. There is no need for staff to clean, and automatic cleaning is achieved, which effectively prevents staff from being cut by internal cutting tools, and the workpiece is cleaned as soon as it is taken out, which will not cause excessive accumulation of debris inside the main body 2 to affect subsequent processing.

[0038] As a further embodiment of the present invention, it also includes an air outlet 54 located at the air outlet of the second acceleration part 53, on which a blocking block 62 is slidably arranged.

[0039] Specifically, two workpieces are fixed on the symmetrically arranged chucks 4 in advance. During processing, one of the workpieces is first placed inside the body 2 for processing, and the other workpiece is placed outside the body 2 to wait for processing. After the processing is completed, the motor 31 is started to drive the threaded rod 34 fixed at its output end to rotate, thereby driving the threaded seat 32 threadedly connected to the threaded rod 34 to move, thereby driving the two workpieces to move simultaneously, and the processed workpiece is moved out of the body 2 through the workpiece entrance 21 away from the side of the unprocessed workpiece, and the first closing plate 33 and the second closing plate 35 on both sides of the processed workpiece move synchronously with the threaded seat 32, as shown in FIG. Figures 2 to 4As shown, the first closing plate 33 moves out of the body 2 through the workpiece entrance 21, and the second closing plate 35 moves into the body 2. The first closing plate 33 on the unprocessed workpiece side also moves synchronously toward the workpiece entrance 21 on the unprocessed workpiece side.

[0040] At the same time, the first push block 61 of the air outlet blocking mechanism 6 located at the workpiece inlet and outlet 21 loses the push of the first closing plate 33 and the second closing plate 35, and moves under the action of the first spring. The initial state of the first spring is a compressed state, thereby driving the groove 611 to move toward the blocking block 62. When the groove 611 corresponds to the blocking block 62, the blocking block 62 moves under the push of the second spring, and the arc-shaped end of the blocking block 62 moves into the groove 611. At this time, the through groove 621 provided on the blocking block 62 just corresponds to the air outlet 54, thereby opening the air outlet 54. Figures 3 to 5 As shown, when the threaded seat 32 moves to the predetermined position, the first closing plate 33 and the second closing plate 35 on both sides of the unprocessed workpiece block the workpiece entrance and exit 21 again. Since the first end of the first pushing block 61 is in an arc shape, the first pushing block 61 moves back and squeezes the first spring under the pushing of the first closing plate 33 and the second closing plate 35, and pushes the blocking block 62 back and squeezes the second spring through the groove 611, so that the through groove 621 is misaligned with the blowing port 54, completing the blocking of the blowing port 54 without the need for an additional driving source, further simplifying the structure, and realizing the moving in and out of the workpiece, the opening and closing of the workpiece entrance and exit 21 and the opening and closing of the blowing port 54 at the same time, effectively saving operation time and improving processing efficiency.

[0041] Furthermore, the first closing plate 33 moves to the outside of the main body 2 through the workpiece entrance and exit 21, and the second closing plate 35 moves to the inside of the main body 2. The first closing plate 33 located on the side of the unprocessed workpiece also moves synchronously to the workpiece entrance and exit 21 on the side of the unprocessed workpiece, thereby opening the workpiece entrance and exit 21. Since air mass cannot be accumulated in large quantities, air will accelerate from the open space outside the main body 2 through the workpiece entrance and exit 21 to the internal space of the main body 2. Since the angle between the top of the workpiece entrance and exit 21 and the horizontal plane is 45°, and the air guide portion 51 is located on the inclined surface, when the air accelerates to flow through the workpiece entrance and exit 21, part of the air flow will flow to the inclined surface at the top of the workpiece entrance and exit 21, and enter the air guide groove 5 for multiple accelerations, and be blown to the unprocessed and processed workpieces through the blowing port 54, and the processed workpiece and the chuck 4 are cleaned of chips to facilitate subsequent loading and unloading. At the same time, the unprocessed workpiece is cleaned to improve the processing accuracy.

[0042] Working principle: two workpieces are fixed on the symmetrically arranged chucks 4 in advance. During processing, one of the workpieces is first placed inside the body 2 for processing, and the other workpiece is placed outside the body 2 to wait for processing. After processing is completed, the motor 31 is started to drive the threaded rod 34 fixed at its output end to rotate, thereby driving the threaded seat 32 threadedly connected to the threaded rod 34 to move, thereby driving the two workpieces to move at the same time. The processed workpiece is moved out of the body 2 through the workpiece inlet and outlet 21 on the side away from the unprocessed workpiece, and the first closing plate 33 and the second closing plate 35 on both sides of the processed workpiece move synchronously with the threaded seat 32, as shown in FIG. Figures 2 to 4 As shown, the first closing plate 33 moves toward the outside of the main body 2 through the workpiece entrance and exit 21, and the second closing plate 35 moves toward the inside of the main body 2. The first closing plate 33 located on the side of the unprocessed workpiece also moves toward the workpiece entrance and exit 21 on the side of the unprocessed workpiece synchronously. At the same time, the first pushing block 61 of the blowing port blocking mechanism 6 located at the workpiece entrance and exit 21 loses the pushing of the first closing plate 33 and the second closing plate 35, and moves under the action of the first spring. The initial state of the first spring is a compressed state, thereby driving the groove 611 to move toward the blocking block 62. When the groove 611 corresponds to the blocking block 62, the blocking block 62 moves under the push of the second spring, and the arc-shaped end of the blocking block 62 moves into the groove 611. At this time, the through groove 621 provided on the blocking block 62 just corresponds to the blowing port 54, thereby opening the blowing port 54. Figures 3 to 5 As shown, when the threaded seat 32 moves to the predetermined position, the first closing plate 33 and the second closing plate 35 on both sides of the unprocessed workpiece block the workpiece inlet and outlet 21 again. Since the first end of the first pushing block 61 is in an arc shape, the first pushing block 61 moves back and squeezes the first spring under the pushing of the first closing plate 33 and the second closing plate 35, and pushes the blocking block 62 back and squeezes the second spring through the groove 611, so that the through groove 621 is misaligned with the air outlet 54, completing the blocking of the air outlet 54. The first closing plate 33 moves toward the outside of the body 2 through the workpiece inlet and outlet 21, and the second closing plate 35 moves toward the inside of the body 2. The first closing plate 33 on the side of the unprocessed workpiece is located. A closing plate 33 also synchronously moves toward the workpiece entrance and exit 21 on the side of the unprocessed workpiece, thereby opening the workpiece entrance and exit 21. Since air mass cannot accumulate in large quantities, air will accelerate from the open space outside the main body 2 through the workpiece entrance and exit 21 to the internal space of the main body 2. Since the top of the workpiece entrance and exit 21 is at an angle of 45° to the horizontal plane, and the air guide portion 51 is located on the inclined surface, when the air accelerates to flow through the workpiece entrance and exit 21, part of the air flow will flow to the inclined surface at the top of the workpiece entrance and exit 21, and enter the air guide groove 5 for multiple accelerations, and be blown to the unprocessed and processed workpieces through the blowing port 54, so as to clean the chips of the processed workpiece and the chuck 4.

[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CNC lathe that is convenient for loading and unloading workpieces, characterized in that: include: The main body (2) has air guide grooves (5) symmetrically formed on both sides thereof, the air guide grooves (5) comprising a first acceleration portion (52), the air inlet and the air outlet of the first acceleration portion (52) being respectively connected to the air guide portion (51) and the second acceleration portion (53); The air guide portion (51) is arranged in a trumpet shape, the first acceleration portion (52) and the second acceleration portion (53) are both arranged in a cone shape, and the cross-sectional area gradually decreases from the air inlet to the air outlet.

2. A CNC lathe for facilitating workpiece loading and unloading according to claim 1, characterized in that: It also includes workpiece inlets and outlets (21) symmetrically arranged on both sides of the body (2), the top of which is an inclined surface with an angle of 45° with the horizontal plane, and the air guide portion (51) is located on the inclined surface.

3. A CNC lathe for facilitating loading and unloading of workpieces according to claim 2, characterized in that: It also comprises a feeding mechanism (3), which comprises a slidably arranged threaded seat (32), and a chuck (4) is symmetrically arranged on the threaded seat (32).

4. A CNC lathe for facilitating loading and unloading of workpieces according to claim 3, characterized in that: A first closing plate (33) and a second closing plate (35) are arranged on the threaded seat (32), and the first closing plate (33) is symmetrically arranged with respect to the second closing plate (35).

5. A CNC lathe for facilitating loading and unloading of workpieces according to claim 4, characterized in that: A cleaning brush (36) is fixedly arranged at the bottom of the threaded seat (32).

6. A CNC lathe for facilitating workpiece loading and unloading according to claim 1, characterized in that: It also includes an air blowing port (54) located at the air outlet of the second acceleration part (53), on which a blocking block (62) is slidably arranged.

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