An automatic workpiece loading and unloading conveying device for CNC lathes

Abstract

This utility model discloses an automatic workpiece loading and unloading conveying device for CNC lathes, relating to the field of CNC lathe loading and unloading technology. It includes a support frame, with a lead screw rotatably mounted inside the support frame. A screw block is threaded onto the lead screw, and a cylinder is fixedly mounted at the bottom of the screw block. A clamping mechanism is mounted at the output end of the cylinder. The clamping mechanism includes a U-shaped plate, with multiple sleeves fixedly mounted at the bottom of the upper part of the U-shaped plate. A damper is fixedly mounted inside the sleeve, and the output end of the damper extends out of the sleeve and is fixedly mounted on a mounting plate. A suction cup is mounted at the bottom of the mounting plate. Electric push rods are fixedly mounted on both sides of the U-shaped plate, with the output ends of the electric push rods penetrating the side wall of the U-shaped plate and fixedly mounted on a support plate. A clamping plate is mounted on one side of the support plate, and a clamping block is fixedly mounted on the side wall of the support plate. The two support plates drive the two clamping plates to move closer together, causing the two clamping plates to contact the workpiece for positioning. The workpiece is then clamped by the two clamping blocks, thus securing the workpiece firmly.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe loading and unloading technology, specifically to an automatic loading and unloading conveying device for CNC lathe workpieces. Background Technology

[0002] CNC machine tools automatically process parts according to a pre-programmed machining program. We compile the machining process route, process parameters, tool movement trajectory, displacement, cutting parameters, and auxiliary functions into a machining program sheet according to the instruction codes and program format specified by the CNC machine tool. The contents of this program sheet are then recorded on a control medium and input into the CNC device of the CNC machine tool, thereby directing the machine tool to process the parts.

[0003] When using existing CNC lathe loading and unloading devices, some metal workpieces are quite heavy, and the existing clamping mechanism may not be secure enough during loading and unloading, which may cause them to fall and thus affect the efficiency of loading and unloading workpieces. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic loading and unloading conveying device for CNC lathes, so as to solve the problem mentioned in the background art that the existing clamping mechanism is not secure enough during loading and unloading, which may lead to the risk of falling and thus affect the loading and unloading efficiency of the workpiece.

[0005] To achieve the above objectives, this utility model provides an automatic workpiece loading and unloading conveying device for CNC lathes, including a support frame. A lead screw is rotatably mounted on the inner side of the support frame, and a motor is fixedly mounted on the outer wall of the support frame. The output end of the motor is fixed to the lead screw. A screw block is threaded onto the lead screw, and a cylinder is fixedly mounted at the bottom of the screw block. A clamping mechanism is mounted at the output end of the cylinder. The clamping mechanism includes a U-shaped plate, which is fixedly connected to the output end of the cylinder. Multiple sleeves are fixedly mounted at the bottom upper end of the U-shaped plate, and a damper is fixedly mounted on the inner side of each sleeve. The output end of the damper extends out of the sleeve and is fixedly mounted on a mounting plate. A suction cup is mounted at the bottom of the mounting plate. Electric push rods are fixedly mounted on both sides of the U-shaped plate. The output end of each electric push rod passes through the side wall of the U-shaped plate and is fixedly mounted on a support plate. A clamping plate is mounted on one side of the support plate, and two pillars are fixedly mounted on the clamping plate. The support plate slides with the two pillars. A clamping block is fixedly mounted on the side wall of the support plate, and a slot for the clamping block to slide through is provided on the clamping plate.

[0006] By adopting the above scheme, the U-shaped plate drives multiple sleeves to move downwards, and the multiple sleeves drive the damper and suction cups to move downwards, so that the multiple suction cups contact the workpiece for adsorption. The two support plates drive the two clamping plates to move closer to each other, so that the two clamping plates contact the workpiece to position the workpiece. The support plates drive the clamping blocks to pass through the slot, and then the two clamping blocks clamp the workpiece, thus clamping the workpiece firmly.

[0007] As a further improvement to this technical solution, a limiting rod is fixedly installed on the inner side of the support frame, and a through hole is provided on the screw block for the limiting rod to slide through.

[0008] By adopting the above scheme, the screw block is limited by the limiting rod, so that the screw block will not rotate with the lead screw.

[0009] As a further improvement to this technical solution, a first spring is sleeved on the outside of the damper, and the two ends of the first spring are fixedly connected to the sleeve and the mounting plate, respectively.

[0010] By adopting the above scheme, the suction cup is buffered through the cooperation of the damper and the first spring.

[0011] As a further improvement to this technical solution, a groove is provided at the bottom of the mounting plate, and a second spring is fixedly installed in the groove of the mounting plate, with a pressure block fixedly installed at the bottom end of the second spring.

[0012] By adopting the above scheme, the pressure block is pressed downwards, and the elastic force of the second spring causes the pressure block to move downwards, separating the workpiece from the suction cup.

[0013] As a further improvement to this technical solution, a third spring is sleeved on the outside of the support column, and the two ends of the third spring are fixedly connected to the support plate and the clamping plate, respectively.

[0014] By adopting the above scheme, the clamping plate is supported by a third spring, so that the clamping plate has a certain compression space.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This automatic workpiece loading and unloading conveying equipment for CNC lathes uses a clamping mechanism. A U-shaped plate drives multiple sleeves to move downwards, which in turn drive a damper and a suction cup to move downwards, allowing the suction cup to contact the workpiece for adsorption. The damper, in conjunction with a first spring, buffers the suction cup. Two support plates drive two clamping plates to move closer together, positioning the workpiece. The support plates drive clamping blocks through the slot, clamping the workpiece securely and effectively ensuring efficient workpiece loading and unloading. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0019] Figure 3 This is a cross-sectional structural schematic diagram of the sleeve of the utility model;

[0020] Figure 4 This is a structural schematic diagram of the support plate of the utility model.

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Support frame; 2. Lead screw; 3. Motor; 4. Screw block; 5. Cylinder; 6. Clamping mechanism; 61. U-shaped plate; 62. Sleeve; 63. Damper; 631. First spring; 64. Mounting plate; 641. Suction cup; 642. Second spring; 643. Pressure block; 65. Electric push rod; 66. Support plate; 67. Clamping plate; 671. Support column; 672. Third spring; 68. Clamping block; 69. End block; 7. Limiting rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figures 1-2As shown, this utility model provides an automatic workpiece loading and unloading conveying device for CNC lathes, including a support frame 1, which is bolted to the CNC lathe. A lead screw 2 is rotatably mounted on the inner side of the support frame 1, and a motor 3 is fixedly mounted on the outer wall of the support frame 1. The output end of the motor 3 is fixed to the lead screw 2, and a screw block 4 is threadedly connected to the lead screw 2. A cylinder 5 is fixedly mounted at the bottom of the screw block 4, and a clamping mechanism 6 is mounted at the output end of the cylinder 5. When the motor 3 is started, it drives the lead screw 2 to rotate, which in turn drives the screw block 4 to move along the lead screw 2. The screw block 4 drives the cylinder 5 and the clamping mechanism 6 to move. The horizontal position of the clamping mechanism 6 is adjusted, and the output end of the cylinder 5 drives the clamping mechanism 6 to move up or down. The vertical position of the clamping mechanism 6 is adjusted to facilitate the clamping mechanism 6 to clamp the workpiece for loading and unloading. A limit rod 7 is fixedly mounted on the inner side of the support frame 1, and a through hole is opened on the screw block 4 for the limit rod 7 to slide through. The limit rod 7 limits the screw block 4 so that the screw block 4 will not rotate with the lead screw 2.

[0026] Please see Figures 2-4As shown, the clamping mechanism 6 includes a U-shaped plate 61, which is fixedly connected to the output end of the cylinder 5. Multiple sleeves 62 are fixedly mounted on the bottom of the upper end of the U-shaped plate 61. A damper 63 is fixedly mounted inside the sleeve 62. The output end of the damper 63 extends out of the sleeve 62 and is fixedly mounted with a mounting plate 64. A suction cup 641 is mounted at the bottom of the mounting plate 64. A first spring 631 is sleeved on the outside of the damper 63. Both ends of the first spring 631 are fixedly connected to the sleeve 62 and the mounting plate 64, respectively. The U-shaped plate 61 drives the multiple sleeves 62 to... As the suction cups move downwards, multiple sleeves 62 drive the damper 63 and suction cups 641 to move downwards, causing the suction cups 641 to contact the workpiece for adsorption. The damper 63, in cooperation with the first spring 631, buffers the suction cups 641. A groove is provided at the bottom of the mounting plate 64, and a second spring 642 is fixedly installed within this groove. A pressure block 643 is fixedly installed at the bottom of the second spring 642. A circular opening communicating with the groove is provided at the top of the suction cups 641, and the bottom end of the pressure block 643 extends into the suction cup 641. By pressing the pressure block 643 downwards... 3. The elastic force of the second spring 642 causes the pressure block 643 to move downwards, separating the workpiece from the suction cup 641. Electric push rods 65 are fixedly installed on both sides of the U-shaped plate 61. The output end of the electric push rod 65 passes through the side wall of the U-shaped plate 61 and is fixedly installed with a support plate 66. A clamping plate 67 is installed on one side of the support plate 66, and two pillars 671 are fixedly installed on the clamping plate 67. The support plate 66 slides with the two pillars 671. A third spring 672 is sleeved on the outside of the pillars 671, and both ends of the third spring 672 are respectively connected to the support plate 66. The support plate 66 is fixedly connected to the clamping plate 67, and the clamping plate 67 is supported by the third spring 672, so that the clamping plate 67 has a certain compression space. The side wall of the support plate 66 is fixedly provided with clamping blocks 68. The clamping plate 67 has a slot for the clamping blocks 68 to slide through. The support plate 66 drives the clamping blocks 68 to pass through the slot, and then the workpiece is clamped by the two clamping blocks 68, thus clamping the workpiece firmly and effectively ensuring the loading and unloading efficiency of the workpiece. The support column 671 is fixedly provided with an end block 69 through one end of the support plate 66. The end block 69 is used to limit the support column 671.

[0027] The specific working principle of this utility model is as follows: The output end of the cylinder 5 drives the clamping mechanism 6 to move downward, adjusting the vertical position of the clamping mechanism 6 so that the clamping mechanism 6 is close to the workpiece. The U-shaped plate 61 drives multiple sleeves 62 to move downward, and the multiple sleeves 62 drive the damper 63 and the suction cup 641 to move downward, so that the multiple suction cups 641 contact the workpiece for adsorption. Through the cooperation of the damper 63 and the first spring 631, the suction cups 641 are buffered. The two electric push rods 65 are activated, which drive the support plate 66 to move. The two support plates 66 drive the two clamping plates 67 to move closer to each other, so that the two clamping plates 67 contact the workpiece to position the workpiece. The support plate 66 drives the clamping block 68 to pass through the slot, and then the two clamping blocks 68 clamp the workpiece, thus clamping the workpiece firmly and effectively ensuring the loading and unloading efficiency of the workpiece.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic workpiece loading and unloading conveying device for CNC lathes, comprising a support frame (1), characterized in that: A lead screw (2) is rotatably mounted on the inner side of the support frame (1). A motor (3) is fixedly mounted on the outer wall of the support frame (1). The output end of the motor (3) is fixed to the lead screw (2). A screw block (4) is threaded onto the lead screw (2). A cylinder (5) is fixedly mounted at the bottom of the screw block (4). A clamping mechanism (6) is mounted at the output end of the cylinder (5). The clamping mechanism (6) includes a U-shaped plate (61). The U-shaped plate (61) is fixedly connected to the output end of the cylinder (5). Multiple sleeves (62) are fixedly mounted at the bottom of the upper end of the U-shaped plate (61). A damper (63) is fixedly mounted inside the sleeve (62). The output end of the damper (63) is... A sleeve (62) extends out and is fixedly provided with an installation plate (64). A suction cup (641) is provided at the bottom of the installation plate (64). Electric push rods (65) are fixedly provided on both sides of the U-shaped plate (61). The output end of the electric push rod (65) passes through the side wall of the U-shaped plate (61) and is fixedly provided with a support plate (66). A clamping plate (67) is provided on one side of the support plate (66). Two pillars (671) are fixedly provided on the clamping plate (67). The support plate (66) slides with the two pillars (671). A clamping block (68) is fixedly provided on the side wall of the support plate (66). A slot for the clamping block (68) to slide through is provided on the clamping plate (67).

2. The automatic loading and unloading conveying device for CNC lathe workpieces according to claim 1, characterized in that: The support frame (1) is fixedly provided with a limiting rod (7) on its inner side, and the screw block (4) is provided with a through hole for the limiting rod (7) to slide through.

3. The automatic loading and unloading conveying device for CNC lathe workpieces according to claim 1, characterized in that: The damper (63) is fitted with a first spring (631) on its outer side, and the two ends of the first spring (631) are fixedly connected to the sleeve (62) and the mounting plate (64) respectively.

4. The automatic workpiece loading and unloading conveying device for CNC lathes according to claim 1, characterized in that: The mounting plate (64) has a groove at the bottom, and a second spring (642) is fixedly installed in the groove. A pressure block (643) is fixedly installed at the bottom end of the second spring (642).

5. The automatic workpiece loading and unloading conveying device for CNC lathes according to claim 4, characterized in that: The suction cup (641) has a circular opening with a communicating groove at the top, and the bottom end of the pressure block (643) extends into the suction cup (641).

6. The automatic workpiece loading and unloading conveying device for CNC lathes according to claim 1, characterized in that: A third spring (672) is fitted on the outside of the support column (671), and the two ends of the third spring (672) are fixedly connected to the support plate (66) and the clamping plate (67) respectively.

7. The automatic workpiece loading and unloading conveying device for CNC lathes according to claim 1, characterized in that: The support column (671) passes through the support plate (66) and has an end block (69) fixedly installed at one end. The end block (69) is used to restrict the support column (671).

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