Lathe with automatic tool changing function

Abstract

The utility model relates to the technical field of automatic tool changing of lathes, and discloses a lathe with an automatic tool changing function, which comprises a lathe main body, a first driving plate is arranged in the lathe main body, a second driving plate is arranged on the bottom surface of the first driving plate, and a tool changing component is arranged on the top surface of the first driving plate. The tool changing assembly comprises a tool changing frame fixed to the top face of the second driving plate, two tool changing bases are arranged on the top face of the tool changing frame in the length direction, and a tool changing base is arranged on the top face of the tool changing frame in the width direction. The driving air cylinder is moved to one side of a cutting tool needing to be used through the rodless air cylinder, then the cutting tool can be ejected out through the driving air cylinder, then the first driving plate and the second driving plate are driven to move, the cutting tool is connected with a workpiece in an abutting mode, cutting operation is conducted, the tool changing process is simple, the speed is high, and the efficiency is high. And the three tool changing bases are distributed on the front side, the left side and the right side of the workpiece correspondingly, the machining requirements of more workpieces can be met, and the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic tool changing for lathes, in particular to a lathe with an automatic tool changing function. Background Art

[0002] When using a machining lathe to process a workpiece, a variety of different tools are required to complete the cutting or grooving of the workpiece. However, existing machining machines do not have a tool library, and when different tools used in machining are replaced, the tools need to be manually disassembled and replaced. For this purpose, a lathe with an automatic tool changing function is required.

[0003] The existing automatic tool changing mechanism for agricultural machinery shaft processing lathes (Announcement No.: CN220445829U) has at least the following disadvantages: although the device can grasp the cutting tool through the mechanical clamp to act on the workpiece, the mechanical clamp cannot be flexibly adjusted. The tool clamped by the mechanical clamp can only process the outer wall or front side of the workpiece, and cannot be sent to the front and side sides of the workpiece at the same time, resulting in it being unsuitable for processing some workpieces. For this reason, the present utility model is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a lathe with an automatic tool changing function.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lathe with an automatic tool changing function includes a machine tool body, a first drive plate is provided inside the machine tool body, a second drive plate is provided on the bottom surface of the first drive plate, a tool changing assembly is provided on the top surface of the first drive plate, the tool changing assembly includes a tool changing rack fixed to the top surface of the second drive plate, two tool changing seats are provided on the top surface of the tool changing rack along the length direction, and one tool changing seat is provided along the width direction, three sliding plates are slidably provided on the top surface of the tool changing seat, and a cutting knife is provided on the top surface of the sliding plate.

[0007] As a further solution of the present invention, a rodless cylinder is fixed on the top surface of the second driving plate, a driving frame is fixed on the top surface of the rodless cylinder slider, driving cylinders are fixed on the left and right sides of the driving frame, one end of the driving cylinder telescopic rod extends through the interior of the driving frame, and one end of the driving cylinder telescopic rod is fixed to a driving bevel, which is a quadrangular pyramid structure. In the tool changing seat along the width direction of the tool changing frame, a first driven bevel is fixed on the rear side of the sliding plate near the top surface on both sides, and the inclined surface of the first driven bevel faces the driving bevel, and a second driven bevel is fixed on the rear side of the sliding plate near the middle, and the rear end of the second driven bevel is a quadrangular pyramid structure.

[0008] As a further solution of the present invention, a plug-in rod is fixed on the side of the sliding plate close to the tool changer, and a plug-in groove is provided on the side of the tool changer close to the sliding plate. The plug-in rod is slidably inserted into the inside of the plug-in groove, and a spring is movably sleeved on the outer wall of the plug-in rod, and the two ends of the spring are respectively in contact with the two sides close to the tool changer and the sliding plate.

[0009] As a further solution of the present invention, a mounting seat is fixed on the top surface of the sliding plate, a cutting knife is inserted inside the mounting seat, three bolts are slidably inserted on the top surface of the mounting seat, the bottom ends of the bolts are threadedly connected to the outer wall of the mounting seat, a plurality of locking grooves are provided on the top surface of the tool changing holder, and a plurality of locking plates are slidably provided on the top surface of the locking grooves, the locking plates are respectively abutted against the top surfaces of both ends of the tool changing holder, the top surface of the locking plate is threadedly connected with bolts, and the bottom surfaces of the bolts abut against the top surfaces of both ends of the tool changing holder.

[0010] As a further solution of the present invention, a first motor is fixed to the inner bottom surface of the machine tool body, a first screw is fixed to the output shaft end of the first motor, a first drive plate is threadedly connected to the outer wall of the first screw, a second motor is fixed to one side of the first drive plate, a second screw is fixed to the output shaft of the second motor, the second drive plate is threadedly connected to the outer wall of the second screw, a third motor is fixed to one side of the inner side of the machine tool body, and an electric claw disk is fixed to the output shaft end of the third motor.

[0011] As a further solution of the present invention, two first limiting slide rails are fixed to the inner bottom surface of the machine tool body, the first drive plate is slidably arranged with the outer wall of the first limiting slide rail, two second limiting slide rails are fixed to the top surface of the first drive plate, the second drive plate is slidably arranged with the outer wall of the second limiting slide rail, the top surface of the second drive plate is fixed with a third limiting slide rail, and the drive frame is slidably arranged with the outer wall of the third limiting slide rail.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] By arranging three tool changing seats on the top surface of the tool changing holder, the driving cylinder is moved to the side of the cutting tool to be used by the rodless cylinder when changing the tool, and then the cutting tool can be pushed out by the driving cylinder, and then the first driving plate and the second driving plate are driven to move, so that the cutting tool and the workpiece are abutted and the cutting operation is performed. The tool changing process is simple and fast, and the three tool changing seats are respectively distributed on the front side and the left and right sides of the workpiece, which can meet the processing needs of more workpieces and increase the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a lathe with automatic tool changing function proposed by the utility model;

[0015] Figure 2This is a schematic diagram of the three-dimensional disassembled structure of a lathe with automatic tool changing function proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the second drive plate of a lathe with automatic tool changing function proposed by the present invention;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the tool changing seat of a lathe with automatic tool changing function proposed by the utility model.

[0018] In the figure: 1. Machine tool body; 101. First drive plate; 102. Second drive plate; 2. Tool changer; 201. Tool changer base; 202. Sliding plate; 203. Cutting knife; 204. Rodless cylinder; 205. Drive frame; 206. Drive cylinder; 207. Drive bevel block; 208. First driven bevel block; 209. Second driven bevel block; 3. Connecting rod; 301. Connecting slot; 302. Spring; 4. Mounting seat; 401. Locking slide; 402. Locking plate; 5. First screw rod; 501. Second screw rod; 6. First limit rail; 601. Second limit rail; 602. Third limit rail. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1-Figure 4As shown, a lathe with an automatic tool changing function includes a machine tool body 1, a first drive plate 101 is provided inside the machine tool body 1, a second drive plate 102 is provided on the bottom surface of the first drive plate 101, a tool changing assembly is provided on the top surface of the first drive plate 101, and the tool changing assembly includes a tool changing frame 2 fixed on the top surface of the second drive plate 102, two tool changing seats 201 are provided on the top surface of the tool changing frame 2 along the length direction, and one tool changing seat 201 is provided along the width direction, three sliding plates 202 are slidably provided on the top surface of the tool changing seat 201, and a cutting knife 203 is provided on the top surface of the sliding plate 202.

[0023] like Figure 2-Figure 4 As shown, in this embodiment, a rodless cylinder 204 is fixed on the top surface of the second driving plate 102, a driving frame 205 is fixed on the top surface of the slider of the rodless cylinder 204, and a driving cylinder 206 is fixed on both the left and right sides of the driving frame 205. One end of the telescopic rod of the driving cylinder 206 extends through the interior of the driving frame 205, and one end of the telescopic rod of the driving cylinder 206 is fixed with a driving inclined block 207. The driving inclined block 207 is a quadrangular pyramid structure. In the tool change seat 201 along the width direction of the tool changer 2, its top is fixed. The first driven oblique block 208 is fixed to the rear side of the sliding plate 202 near both sides, and the inclined surface of the first driven oblique block 208 faces the driving oblique block 207. The second driven oblique block 209 is fixed to the rear side of the sliding plate 202 near the middle. The rear end of the second driven oblique block 209 is a quadrangular pyramid structure. By starting the rodless cylinder 204, the driving frame 205 can be driven to move forward and backward along the length direction of the second driving plate 102. When the outer wall of the workpiece needs to be processed, the driving frame 205 is moved to the corresponding cutting position. On one side of the cutting knife 203, the driving cylinder 206 is started to drive the driving bevel 207 to abut and push against one side of the sliding plate 202 of the cutting knife 203, so that the sliding plate 202 slides on the top surface of the tool changer 201 until the cutting knife 203 is extended to the maximum distance in the direction of the workpiece. At this time, the sliding plate 202 is restricted and cannot continue to slide on the tool changer 201. Then, by driving the first driving plate 101 and the second driving plate 102 to move, the cutting knife 203 is abutted against the workpiece and the cutting operation is performed. When the front side of the workpiece needs to be processed, the driving frame 205 moves to the side corresponding to the cutting tool 203 and starts the driving cylinder 206 to drive the driving bevel block 207 to abut against the inclined surface of the first driven bevel block 208 or the second driven bevel block 209. Due to the cooperation between the driving bevel block 207 and the inclined surface of the first driven bevel block 208 or the second driven bevel block 209, the sliding plate 202 is pushed, so that the cutting tool 203 located on the front side of the workpiece can also be ejected normally and the workpiece can be processed.

[0024] like Figure 2-Figure 4As shown, in this embodiment, the sliding plate 202 is fixed with a plug-in rod 3 on the side close to the tool change seat 201, and the tool change seat 201 is provided with a plug-in groove 301 on the side close to the sliding plate 202. The plug-in rod 3 is slidably inserted into the inside of the plug-in groove 301, and a spring 302 is movably sleeved on the outer wall of the plug-in rod 3. The two ends of the spring 302 are respectively in contact with the two sides close to the tool change seat 201 and the sliding plate 202. When the sliding plate 202 slides on the top surface of the tool change seat 201, the plug-in rod 3 slides inside the plug-in groove 301 and the spring 302 is compressed. When the workpiece is processed, the driving cylinder 206 is reset away from the sliding plate 202. At this time, the spring 302 rebounds quickly and pushes the sliding plate 202 and the cutting knife 203 to reset, preventing the cutting knife 203 from hindering the processing of the workpiece by other cutting knives 203.

[0025] like Figure 2-Figure 4 As shown, in this embodiment, the top surface of the sliding plate 202 is fixed with a mounting seat 4, the interior of the mounting seat 4 is inserted with a cutting tool 203, the top surface of the mounting seat 4 is slidably inserted with three bolts, the bottom ends of the bolts are threadedly connected to the outer wall of the mounting seat 4, the top surface of the tool changer 2 is provided with a plurality of locking grooves 401, the top surface of the locking grooves 401 is slidably provided with a plurality of locking plates 402, the locking plates 402 are respectively in contact with the top surfaces of both ends of the tool changer 201, the top surface of the locking plates 402 is threadedly connected with bolts, and the bolts are screwed together. The bottom surface of the bolt abuts against the top surfaces of both ends of the tool changer 201. By using bolts to detachably mount the cutting tool 203 to the mounting base 4, it is convenient to replace the corresponding cutting tool 203 according to the processing requirements of the workpiece. The locking plate 402 slides with the top surface of the locking slide 401, and drives the bolt-connected locking plate 402 to abut against the top surfaces of both ends of the tool changer 201. The tool changer 201 can be detachably mounted, which is convenient for replacing the position of the tool changer 201 according to the processing requirements of different workpieces, thereby increasing the applicability of the device.

[0026] like Figure 2-Figure 4As shown, in this embodiment, a first motor is fixed to the inner bottom surface of the machine tool body 1, a first screw rod 5 is fixed to the output shaft end of the first motor, a first drive plate 101 is threadedly connected to the outer wall of the first screw rod 5, a second motor is fixed to one side of the first drive plate 101, a second screw rod 501 is fixed to the output shaft of the second motor, a second drive plate 102 is threadedly connected to the outer wall of the second screw rod 501, a third motor is fixed to one side of the inner side of the machine tool body 1, an electric claw disk is fixed to the output shaft end of the third motor, the first screw rod 5 is driven to rotate by the first motor, and the first drive plate 101 and the outer wall of the first screw rod 5 are connected. When the wall is threadedly connected, the first drive plate 101 can be moved forward and backward, and the second motor drives the second screw rod 501 to rotate. When the second drive plate 102 is threadedly connected to the outer wall of the second screw rod 501, the second drive plate 102 can be moved left and right. Therefore, after the cutting knife 203 is ejected, the first drive plate 101 and the second drive plate 102 are driven to move, so that the cutting knife 203 is brought into contact with the workpiece and the cutting operation is performed. The workpiece can be fixed by the electric claw disk. The third motor drives the electric claw disk to rotate, which can drive the workpiece to rotate and cooperate with the cutting knife 203 for processing.

[0027] like Figure 2-Figure 4 As shown, in this embodiment, two first limiting slide rails 6 are fixed to the inner bottom surface of the machine tool body 1, the first driving plate 101 is slidingly arranged with the outer wall of the first limiting slide rail 6, the top surface of the first driving plate 101 is fixed with two second limiting slide rails 601, the second driving plate 102 is slidingly arranged with the outer wall of the second limiting slide rail 601, the top surface of the second driving plate 102 is fixed with a third limiting slide rail 602, the driving frame 205 is slidingly arranged with the outer wall of the third limiting slide rail 602, the first limiting slide rail 6 can limit and support the movement of the first driving plate 101, the second limiting slide rail 601 can limit and support the movement of the second driving plate 102, and the third limiting slide rail 602 can limit and support the movement of the driving frame 205.

[0028] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: in use, the cutting tool 203 is detachably mounted on the mounting base 4 with bolts, so that the corresponding cutting tool 203 can be replaced according to the processing requirements of the workpiece. The locking plate 402 slides with the top surface of the locking slide 401, and drives the bolt-connected locking plate 402 to abut against the top surfaces of both ends of the tool changer 201, so that the tool changer 201 can be detachably mounted, so that the position of the tool changer 201 can be replaced according to the processing requirements of different workpieces. Subsequently, starting the rodless cylinder 204 can drive the driving frame 205 to move back and forth along the length direction of the second driving plate 102. When the outer wall of the workpiece needs to be processed, the workpiece is fixed on the electric The third motor drives the electric claw disc to rotate and cooperate with the workpiece for processing, and then moves the driving frame 205 to the side of the corresponding cutting tool 203, starts the driving cylinder 206 to drive the driving bevel 207 to abut and push one side of the sliding plate 202 of the cutting tool 203, so that the sliding plate 202 slides on the top surface of the tool changer 201 until the cutting tool 203 is extended to the maximum distance in the direction of the workpiece. At this time, the sliding plate 202 is restricted and cannot continue to slide on the tool changer 201. The first motor drives the first screw rod 5 to rotate. Under the threaded connection between the first driving plate 101 and the outer wall of the first screw rod 5, the first driving plate 101 can be moved back and forth, and the second screw rod 501 is driven to rotate by the second motor. When the second driving plate 102 is threadedly connected to the outer wall of the second screw rod 501, the second driving plate 102 can be moved left and right. The first driving plate 101 and the second driving plate 102 cooperate to move, so that the cutting knife 203 is brought into contact with the workpiece and the cutting operation is performed. When the front side of the workpiece needs to be processed, the driving frame 205 moves to the side corresponding to the cutting knife 203 and starts the driving cylinder 206 to drive the driving bevel block 207 to abut against the inclined surface of the first driven bevel block 208 or the second driven bevel block 209. Due to the cooperation of the driving bevel block 207 with the inclined surface of the first driven bevel block 208 or the second driven bevel block 209, the sliding plate 202 is pushed, so that the cutting knife 203 located on the front side of the workpiece can also be ejected normally and the workpiece is processed. The first limiting slide 6 can limit and support the movement of the first driving plate 101, the second limiting slide 601 can limit and support the movement of the second driving plate 102, and the third limiting slide 602 can limit and support the movement of the driving frame 205. When the sliding plate 202 slides on the top surface of the tool changer 201, the plug-in rod 3 slides inside the plug-in slot 301 and compresses the spring 302. When the workpiece is processed, the driving cylinder 206 is reset away from the sliding plate 202. At this time, the spring 302 rebounds quickly and pushes the sliding plate 202 and the cutting tool 203 to reset, preventing the cutting tool 203 from hindering other cutting tools 203 from processing the workpiece.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A lathe with an automatic tool changing function, comprising a machine tool body (1), characterized in that: A first drive plate (101) is provided inside the machine tool body (1), a second drive plate (102) is provided on the bottom surface of the first drive plate (101), a tool changing assembly is provided on the top surface of the first drive plate (101), and the tool changing assembly comprises a tool changing frame (2) fixed to the top surface of the second drive plate (102), two tool changing seats (201) are provided on the top surface of the tool changing frame (2) along the length direction, and one tool changing seat (201) is provided along the width direction, three sliding plates (202) are slidably provided on the top surface of the tool changing seat (201), and a cutting knife (203) is provided on the top surface of the sliding plate (202).

2. A lathe with automatic tool changing function according to claim 1, characterized in that: A rodless cylinder (204) is fixed on the top surface of the second driving plate (102), a driving frame (205) is fixed on the top surface of the slider of the rodless cylinder (204), a driving cylinder (206) is fixed on both the left and right sides of the driving frame (205), one end of the telescopic rod of the driving cylinder (206) extends through the interior of the driving frame (205), and a driving bevel (207) is fixed on one end of the telescopic rod of the driving cylinder (206), and the driving bevel (207) is a quadrangular pyramid structure. In the tool changer (201) along the width direction of the tool changer (2), a first driven bevel (208) is fixed on the top surface of the tool changer (201) near the rear side of the sliding plate (202) on both sides, and the inclined surface of the first driven bevel (208) faces the driving bevel (207), and a second driven bevel (209) is fixed on the rear side of the sliding plate (202) near the middle, and the rear end of the second driven bevel (209) is a quadrangular pyramid structure.

3. A lathe with automatic tool changing function according to claim 2, characterized in that: A plug-in rod (3) is fixed on one side of the sliding plate (202) close to the tool change seat (201); a plug-in slot (301) is provided on one side of the tool change seat (201) close to the sliding plate (202); the plug-in rod (3) is slidably inserted into the interior of the plug-in slot (301); a spring (302) is movably sleeved on the outer wall of the plug-in rod (3); and two ends of the spring (302) respectively abut against two sides of the tool change seat (201) close to the sliding plate (202).

4. A lathe with automatic tool changing function according to claim 3, characterized in that: The top surface of the sliding plate (202) is fixed with a mounting seat (4), the interior of the mounting seat (4) is provided with a cutting tool (203), the top surface of the mounting seat (4) is slidably provided with three bolts, the bottom ends of the bolts are threadedly connected to the outer wall of the mounting seat (4), the top surface of the tool changer (2) is provided with a plurality of locking grooves (401), the top surface of the locking grooves (401) is slidably provided with a plurality of locking plates (402), the locking plates (402) are respectively abutted against the top surfaces of the two ends of the tool changer (201), the top surface of the locking plates (402) is threadedly connected with bolts, and the bottom surfaces of the bolts are abutted against the top surfaces of the two ends of the tool changer (201).

5. The lathe with automatic tool changing function according to claim 4, characterized in that: A first motor is fixed to the inner bottom surface of the machine tool body (1), a first screw rod (5) is fixed to the output shaft end of the first motor, a first drive plate (101) is threadedly connected to the outer wall of the first screw rod (5), a second motor is fixed to one side of the first drive plate (101), a second screw rod (501) is fixed to the output shaft of the second motor, a second drive plate (102) is threadedly connected to the outer wall of the second screw rod (501), a third motor is fixed to one side of the inner side of the machine tool body (1), and an electric claw disk is fixed to the output shaft end of the third motor.

6. The lathe with automatic tool changing function according to claim 5, characterized in that: Two first limiting slide rails (6) are fixed to the inner bottom surface of the machine tool body (1); the first drive plate (101) is slidably arranged with the outer wall of the first limiting slide rail (6); two second limiting slide rails (601) are fixed to the top surface of the first drive plate (101); the second drive plate (102) is slidably arranged with the outer wall of the second limiting slide rail (601); a third limiting slide rail (602) is fixed to the top surface of the second drive plate (102); and the drive frame (205) is slidably arranged with the outer wall of the third limiting slide rail (602).

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