Automatic workpiece positioning device of numerical control lathe

Abstract

The utility model relates to the technical field of workpiece machining, and discloses an automatic workpiece positioning device of a numerically controlled lathe, which comprises a supporting table, a moving table is slidably connected to the middle of the top surface of the supporting table, and a moving assembly is fixedly connected to the bottom of the moving table. According to the automatic workpiece positioning device of the numerical control lathe, through the arrangement of the pushing assembly and the positioning plate, when the moving table reaches the center position of the supporting table, the telescopic air cylinder is started to push the pushing block, so that the pushing block slides on the fixing base, and then the slope of the pushing block is utilized to extrude the rolling wheel, so that the rolling wheel rolls and drives the positioning plate to rotate on the supporting frame; and one ends of the two sets of positioning plates press the two sides of the machined workpiece, so that the effect of rapidly positioning the machined workpiece is achieved, the situation that the machining precision is reduced due to the fact that the machined workpiece shakes in the machining process is prevented, meanwhile, the workload of manual installation and positioning is reduced, and the production efficiency and the automation degree of the automatic workpiece positioning device of the numerically-controlled lathe are improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing technology, and in particular to an automatic workpiece positioning device for a CNC lathe. Background Technology

[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting and machining internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads on shaft or disc-shaped parts. They can also perform grooving, drilling, reaming, boring, and other machining operations. The automatic workpiece positioning device on a CNC lathe is an important piece of equipment in modern manufacturing processes. It can improve machining accuracy and efficiency, reduce manual intervention, and is widely used in various CNC machine tools such as CNC lathes, milling machines, and grinding machines. It reduces the need for workers to manually position workpieces, reduces labor intensity, and at the same time, its high degree of automation shortens the workpiece processing time and improves production efficiency.

[0003] In actual use, the automatic workpiece positioning device of existing CNC lathes is not convenient for moving the workpiece to the processing area. When placing the workpiece, starting the equipment can easily cause personal injury.

[0004] A search of existing patents revealed a positioning device for a CNC lathe workpiece (Publication No.: CN211439141U). This device includes a lathe body with a base fixed to its upper surface. The outer wall of the base has a sliding groove. A second connecting seat and a first connecting seat are respectively located on the left and right sides above the base. Both the first and second connecting seats are connected to the base via sliders. This positioning device for a CNC lathe workpiece, by setting the first and second connecting seats above the base and having the slider move within the sliding groove, effectively facilitates the fixing of the workpiece and also facilitates its movement. Rotating the rotating rod to make it fit against the base effectively secures the adjusted first and second connecting seats, increasing the accuracy during machining. Furthermore, the base is equipped with a scale and pointer, allowing for real-time monitoring of the workpiece's position and increasing the efficiency of the CNC machine tool.

[0005] While the aforementioned patent effectively facilitates the fixing of workpieces and makes them easy to move, increasing the accuracy of machining, and the base is equipped with a ruler and pointer to effectively check the position of the workpiece at any time, thus increasing the working efficiency of CNC machine tools, it is not convenient for quickly positioning and machining workpieces, and the manual installation and positioning is relatively cumbersome.

[0006] Therefore, it is necessary to invent an automatic workpiece positioning device for CNC lathes to solve the above problems. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] The technical problem solved by this utility model is to provide an automatic workpiece positioning device for CNC lathes that is highly practical, easy to operate, and has a simple structure, thus solving the problems mentioned in the background art of inconvenience in quickly positioning and machining workpieces and the cumbersome manual installation and positioning.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution: an automatic workpiece positioning device for a CNC lathe, comprising a support platform, a movable stage slidably connected to the center of the top surface of the support platform, a movable component fixedly connected to the bottom of the movable stage, connecting plates fixedly connected to both sides of the top of the support platform, a fixed seat fixedly connected to the top of the connecting plates, a pushing component fixedly connected to one side of the fixed seat, a support frame threadedly connected to the top of the connecting plates by bolts, a positioning plate rotatably connected to the top of the support frame, a roller rotatably connected to one end of the positioning plate, the movable component comprising a fixed block fixedly connected to the bottom of the movable stage, a threaded rod threadedly connected to the inside of the fixed block, a rotating motor fixedly connected to one end of the threaded rod; the pushing component comprising a telescopic cylinder fixedly connected to one side of the fixed seat, a pushing block fixedly connected to one end of the telescopic cylinder, and a sliding groove adapted to the pushing block on one side of the fixed seat.

[0011] As a further embodiment of this utility model, two sets of fixing plates are fixedly connected to the top of the connecting plate and the bottom of the positioning plate, and a telescopic spring is fixedly connected to the top surface of the fixing plate, which facilitates pushing the positioning plate to rise.

[0012] As a further embodiment of this utility model, limit blocks are fixedly connected to both sides of the moving platform, and a slide rail adapted to the limit blocks is provided on the top surface of the support platform. The slide rail facilitates limiting the movement of the moving platform.

[0013] As a further embodiment of this utility model, a lead screw is threadedly connected to the bottom of the support platform, and a drive motor is fixedly connected to one end of the lead screw, which facilitates the rotation of the lead screw.

[0014] As a further embodiment of this utility model, a worktable is slidably connected to the bottom of the support platform, and a side wall is fixedly connected to the top surface of one side of the worktable, which facilitates the support of the pneumatic slide rail.

[0015] As a further embodiment of this utility model, a pneumatic slide rail is fixedly connected to one side of the sidewall, and a support arm is slidably connected to the surface of the pneumatic slide rail, which facilitates the support of the processing drill bit.

[0016] As a further embodiment of this utility model, a processing drill bit is provided at one end of the support arm, and a laser positioner is fixedly connected to the bottom of one end of the support arm, which facilitates positioning and processing.

[0017] (III) Beneficial Effects

[0018] This utility model provides an automatic workpiece positioning device for CNC lathes, which has the following advantages:

[0019] 1. The automatic workpiece positioning device of this CNC lathe, through the setting of the push assembly and positioning plate, when the moving table reaches the center position of the support table, activates the telescopic cylinder to push the push block, so that the push block slides on the fixed seat, and then uses the ramp of the push block to squeeze the roller, so that the roller rolls and drives the positioning plate to rotate on the support frame. Then, the two sets of positioning plates press on one end of the workpiece to process both sides, thereby achieving the effect of rapid positioning of the workpiece, preventing the workpiece from shaking during processing, which would reduce the processing accuracy, and reducing the amount of manual installation and positioning work, thus improving the production efficiency and automation level of the automatic workpiece positioning device of the CNC lathe.

[0020] 2. The automatic workpiece positioning device of this CNC lathe, through the setting of the moving component and the moving table, allows the workpiece to be placed on the moving table during use. Then, the rotating motor is started, which drives the threaded rod to rotate. The fixed block rotates on the surface of the threaded rod, causing the fixed block to pull the moving table to slide and translate on the support platform. This achieves the effect of moving the workpiece to the processing area, preventing personnel injury caused by the equipment starting when placing the workpiece, and improving the safety of the automatic workpiece positioning device of the CNC lathe. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the mobile component of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the driving component of this utility model.

[0025] In the diagram: 1. Support platform; 2. Laser positioner; 3. Moving platform; 4. Moving component; 401. Fixed block; 402. Threaded rod; 403. Rotary motor; 5. Connecting plate; 6. Fixed seat; 7. Pushing component; 701. Telescopic cylinder; 702. Pushing block; 8. Support frame; 9. Positioning plate; 10. Roller; 11. Fixed plate; 12. Telescopic spring; 13. Limit block; 14. Lead screw; 15. Drive motor; 16. Worktable; 17. Side wall; 18. Pneumatic slide rail; 19. Support arm; 20. Machining drill bit. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0027] Please see Figures 1 to 4 This utility model provides a technical solution: an automatic workpiece positioning device for a CNC lathe, including a support platform 1, a movable stage 3 slidably connected to the center of the top surface of the support platform 1, and a movable component 4 fixedly connected to the bottom of the movable stage 3. Through the arrangement of the movable component 4 and the movable stage 3, the workpiece is moved to the processing area, preventing injury to personnel caused by equipment startup when placing the workpiece, thus improving the safety of the automatic workpiece positioning device for the CNC lathe. Connecting plates 5 are fixedly connected to both sides of the top of the support platform 1, and a fixed seat 6 is fixedly connected to the top of the connecting plate 5. A pushing component 7 is fixedly connected to one side of the fixed seat 6. Through the arrangement of the pushing component 7 and the positioning plate 9, the workpiece is quickly positioned, preventing it from shaking during processing. The movement reduces the machining accuracy, but also reduces the amount of manual installation and positioning work, improving the production efficiency and automation level of the automatic workpiece positioning device of the CNC lathe. The top of the connecting plate 5 is connected to the support frame 8 by bolt thread, and the top of the support frame 8 is rotatably connected to the positioning plate 9. One end of the positioning plate 9 is rotatably connected to the roller 10. The moving component 4 includes a fixed block 401 fixedly connected to the bottom of the moving table 3. The fixed block 401 is internally threaded with a threaded rod 402, and one end of the threaded rod 402 is fixedly connected to a rotating motor 403. The pushing component 7 includes a telescopic cylinder 701 fixedly connected to one side of the fixed seat 6. One end of the telescopic cylinder 701 is fixedly connected to the pushing block 702. A sliding groove adapted to the pushing block 702 is opened on one side of the fixed seat 6.

[0028] Two sets of fixing plates 11 are fixedly connected to the top of the connecting plate 5 and the bottom of the positioning plate 9. A telescopic spring 12 is fixedly connected to the top surface of the fixing plate 11. The telescopic spring 12 is used to push the positioning plate 9 to rise.

[0029] Limiting blocks 13 are fixedly connected to both sides of the moving platform 3. The top surface of the support platform 1 is provided with a slide rail that matches the limiting blocks 13. The slide rail serves to limit the movement of the moving platform 3.

[0030] The bottom of the support platform 1 is threaded with a lead screw 14, and one end of the lead screw 14 is fixedly connected to a drive motor 15. The drive motor 15 drives the lead screw 14 to rotate.

[0031] The bottom of the support platform 1 is slidably connected to the worktable 16, and the top surface of one side of the worktable 16 is fixedly connected to the side wall 17. The side wall 17 serves to support the pneumatic slide rail 18.

[0032] A pneumatic slide rail 18 is fixedly connected to one side of the side wall 17. A support arm 19 is slidably connected to the surface of the pneumatic slide rail 18. The support arm 19 serves to support the machining drill bit 20.

[0033] A processing drill bit 20 is provided at one end of the support arm 19, and a laser positioner 2 is fixedly connected to the bottom of one end of the support arm 19. The laser positioner 2 facilitates positioning and processing.

[0034] In this invention, the working steps of the device are as follows:

[0035] First step: When in use, place the workpiece on the moving table 3, and then start the rotating motor 403, so that the rotating motor 403 drives the threaded rod 402 to rotate, and the fixed block 401 rotates on the surface of the threaded rod 402, so that the fixed block 401 pulls the moving table 3 to slide and translate on the support table 1.

[0036] Second step: When the moving platform 3 reaches the center position of the support platform 1, the telescopic cylinder 701 is activated to push the push block 702, so that the push block 702 slides on the fixed seat 6;

[0037] The third step: Then, using the ramp of the push block 702, the roller 10 is squeezed, causing the roller 10 to roll and drive the positioning plate 9 to rotate on the support frame 8, thereby pressing one end of the two sets of positioning plates 9 to process both sides of the workpiece.

[0038] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0039] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic workpiece positioning device for a CNC lathe, comprising a support table (1), characterized in that: A movable platform (3) is slidably connected to the center of the top surface of the support platform (1). A movable component (4) is fixedly connected to the bottom of the movable platform (3). Connecting plates (5) are fixedly connected to both sides of the top of the support platform (1). A fixed seat (6) is fixedly connected to the top of the connecting plate (5). A pushing component (7) is fixedly connected to one side of the fixed seat (6). A support frame (8) is connected to the top of the connecting plate (5) by bolt thread. A positioning plate (9) is rotatably connected to the top of the support frame (8). A roller (10) is rotatably connected to one end of the positioning plate (9). The moving component (4) includes a fixed block (401) fixedly connected to the bottom of the moving platform (3), and a threaded rod (402) is threadedly connected inside the fixed block (401). A rotating motor (403) is fixedly connected to one end of the threaded rod (402). The pushing assembly (7) includes a telescopic cylinder (701) fixedly connected to one side of the fixed base (6). One end of the telescopic cylinder (701) is fixedly connected to a pushing block (702). A sliding groove adapted to the pushing block (702) is provided on one side of the fixed base (6).

2. The automatic workpiece positioning device for a CNC lathe according to claim 1, characterized in that: The top of the connecting plate (5) and the bottom of the positioning plate (9) are both fixedly connected to two sets of fixing plates (11), and the top surface of the fixing plate (11) is fixedly connected to a telescopic spring (12).

3. The automatic workpiece positioning device for a CNC lathe according to claim 1, characterized in that: Limiting blocks (13) are fixedly connected to both sides of the moving platform (3), and a slide rail adapted to the limiting blocks (13) is provided on the top surface of the support platform (1).

4. The automatic workpiece positioning device for a CNC lathe according to claim 1, characterized in that: The bottom of the support platform (1) is threaded with a lead screw (14), and one end of the lead screw (14) is fixedly connected to a drive motor (15).

5. An automatic workpiece positioning device for a CNC lathe according to claim 1, characterized in that: The bottom of the support platform (1) is slidably connected to a workbench (16), and a side wall (17) is fixedly connected to the top surface of one side of the workbench (16).

6. The automatic workpiece positioning device for a CNC lathe according to claim 5, characterized in that: A pneumatic slide rail (18) is fixedly connected to one side of the sidewall (17), and a support arm (19) is slidably connected to the surface of the pneumatic slide rail (18).

7. An automatic workpiece positioning device for a CNC lathe according to claim 6, characterized in that: One end of the support arm (19) is provided with a processing drill bit (20), and a laser positioner (2) is fixedly connected to the bottom of one end of the support arm (19).

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