Positioning tool for precision machining of thin-wall box part

Abstract

The utility model discloses a positioning tool for precision machining of a thin-wall box part, which belongs to the field of positioning tools and comprises a machining table, a portal frame is fixedly mounted at the top end of the machining table, a first motor is fixedly mounted in the portal frame, and an output shaft of the first motor is fixedly sleeved with a screw. A movable base is installed on the surface of the screw in a threaded mode, an electric drilling tool is fixedly installed at the bottom end of the movable base, a sliding groove is formed in the top face of the machining table, a second motor is fixedly installed in the sliding groove, an output shaft of the second motor is fixedly connected with a first double-thread screw in a sleeving mode, and a mounting box is installed on the surface of the first double-thread screw in a threaded mode; according to the clamping device, biaxial movement of the clamping device can be achieved, so that a thin plate is automatically centered and positioned, drilling operation of the thin plate is facilitated, the pressure at the clamping position can be monitored in real time, whether plate body deformation is caused at the drilling position or not is judged, and the plate body machining precision is improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling, and more specifically, to a positioning tooling for precision machining of thin-walled box parts. Background Technology

[0002] In the process of manufacturing thin-walled box components, thin plates require drilling on their surface to accommodate the installation requirements of internal components. Most existing equipment first uses a clamping device to fix the plate and then uses a drill bit to drill holes in the surface.

[0003] In existing technologies, although clamping devices can effectively clamp the plate, they cannot effectively position the plate biaxially. Workers need to place the plate neatly on the processing table and then use the clamping device to fix it. Furthermore, as drilling occurs, the stress at the hole changes, and clamping thin-walled plates can easily cause deformation at the hole, affecting subsequent installation and use. Therefore, a positioning clamping device that can perform biaxial positioning and monitor clamping pressure is needed. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a positioning fixture for precision machining of thin-walled box parts. It can realize biaxial movement of the clamping device, thereby automatically centering the thin plate for drilling operations. Furthermore, the pressure at the clamping point can be monitored in real time to determine whether the drilling will cause deformation of the plate, thus improving the accuracy of plate machining.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A positioning fixture for precision machining of thin-walled box-shaped parts includes a machining table, a gantry frame fixedly mounted on the top of the machining table, a motor fixedly mounted inside the gantry frame, a screw fixedly sleeved on the output shaft of the motor, a movable base threaded onto the surface of the screw, an electric drill fixedly mounted on the bottom end of the movable base, a sliding groove formed on the top surface of the machining table, a motor fixedly mounted inside the sliding groove, a double-threaded screw fixedly sleeved on the output shaft of the motor, a mounting box threaded onto the surface of the double-threaded screw, a rotating wheel rotatably mounted inside the mounting box, a double-threaded screw integrally formed in the middle of the rotating wheel, a sliding base threaded onto the surface of the double-threaded screw, a mounting block fixedly mounted on the top of the sliding base, a controller fixedly mounted inside the mounting block, a display screen electrically connected to one end of the controller, and a pressure sensor electrically connected to the other end, a spring provided on the surface of the pressure sensor, a pressing block fixedly connected to the outer end of the spring, and a guide rod movably sleeved inside the pressing block.

[0009] Furthermore, the upper end of the movable base is slidably mounted inside the gantry.

[0010] Furthermore, the bottom end of the mounting box is slidably mounted inside the sliding groove, and a pad is fixedly mounted on the top surface of the processing table at the bottom end of the gantry.

[0011] Furthermore, the left end of the guide rod is fixedly installed on the side of the mounting block, and it is movably sleeved inside the spring.

[0012] Furthermore, a side plate is fixedly installed on the outer side of the extrusion block.

[0013] Furthermore, the number of the extrusion blocks is four.

[0014] Furthermore, the sliding base is slidably mounted inside the mounting box.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution uses extrusion blocks and side plates to clamp and fix the plate at the four corners on both sides. The double-threaded screw drives the plate to be positioned by the workers without the need for very regular pre-placement, which improves the overall practicality of the device.

[0018] (2) This solution uses a pressure sensor to detect the pressure value between the extrusion block and the plate, and displays it on the surface of the display screen to facilitate real-time monitoring by the staff, thereby determining whether the thin plate has slight deformation after hole processing, improving the accuracy of thin plate processing, and also improving the practicality of the clamping fixture. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the top surface structure of the processing table in this utility model;

[0021] Figure 3 This is a schematic diagram of the mounting box connection structure in this utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the mounting block in this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Processing table; 2. Gantry frame; 3. Motor 1; 4. Screw; 5. Moving base; 6. Electric drill bit; 7. Motor 2; 8. Double-threaded screw 1; 9. Mounting box; 10. Rotary wheel; 11. Double-threaded screw 2; 12. Mounting block; 13. Sliding base; 14. Controller; 15. Pressure sensor; 16. Display screen; 17. Guide rod; 18. Spring; 19. Extrusion block; 20. Side plate; 101. Sliding groove; 102. Pad plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," 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 do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1:

[0029] Please see Figure 1-4 A positioning fixture for precision machining of thin-walled box-shaped parts includes a machining table 1, a gantry frame 2 fixedly mounted on the top of the machining table 1, a motor 3 fixedly mounted inside the gantry frame 2, a screw 4 fixedly sleeved on the output shaft of the motor 3, a movable base 5 threaded on the surface of the screw 4, an electric drill bit 6 fixedly mounted on the bottom of the movable base 5, a sliding groove 101 formed on the top surface of the machining table 1, a motor 7 fixedly mounted inside the sliding groove 101, a double-threaded screw 8 fixedly sleeved on the output shaft of the motor 7, a mounting box 9 threaded on the surface of the double-threaded screw 8, a rotating wheel 10 rotatably mounted inside the mounting box 9, and a double-threaded screw 11 integrally formed in the middle of the rotating wheel 10.

[0030] The upper end of the movable base 5 is slidably installed inside the gantry 2, the lower end of the mounting box 9 is slidably installed inside the sliding groove 101, and the top surface of the processing table 1 is fixedly installed with a pad 102 at the bottom end of the gantry 2.

[0031] Specifically, by using the upper end of the movable base 5 to slide inside the gantry 2, the movable base 5 can be limited during movement to prevent rotation and deviation, so that the bottom end of the electric drill bit 6 always remains vertical with the processing table 1. The pad plate 102 makes it easy for workers to place the plate on it for hole processing.

[0032] The surface of the double-threaded screw 11 is threaded with a sliding base 13. A mounting block 12 is fixedly mounted on the top of the sliding base 13. A controller 14 is fixedly mounted inside the mounting block 12. One end of the controller 14 is electrically connected to a display screen 16, and the other end is electrically connected to a pressure sensor 15. A spring 18 is provided on the surface of the pressure sensor 15. A pressing block 19 is fixedly connected to the outer end of the spring 18. A guide rod 17 is movably sleeved inside the pressing block 19. The left end of the guide rod 17 is fixedly mounted on the side of the mounting block 12 and movably sleeved inside the spring 18. A side plate 20 is fixedly mounted on the outer side of the pressing block 19. There are four pressing blocks 19. The sliding base 13 is slidably mounted inside the mounting box 9.

[0033] Specifically, the pressure sensor 15 can receive the pressure applied when the spring 18 is compressed, and then the controller 14 transmits it to the screen of the display 16 for easy recording and monitoring by the staff. The guide rod 17 enables the extrusion block 19 to move uniaxially during extrusion, preventing it from moving to other positions and affecting the pressure test data. The protruding side plate 20 is used to fix the adjacent side of the plate at the corner. Therefore, the four extrusion blocks 19 and the side plate 20 can fix the four corners of the plate being processed, improving the overall processing stability.

[0034] The working principle of this utility model is as follows: First, the board is placed on the surface of the pad 102. Then, the motor 7 is started to move the mounting box 9. Next, the rotating wheel 10 is rotated to drive the double-threaded screw 11 to rotate. With the help of the sliding base 13, the mounting block 12 is moved. Finally, the pressing block 19 and the side plate 20 are attached to the corner of the board to complete the clamping of the board. After fixing, the spring 18 is compressed, the pressure sensor 15 receives the pressure and displays the specific value on the display screen 16. Then, the motor 3 is started to drive the screw 4 to rotate, so that the moving base 5 moves to the processing position. The electric drill 6 is started to process the hole in the clamped board. If the value displayed on the display screen 16 changes during the processing, it means that the hole processing has caused the board to deform, affecting the clamping force, which makes it easier for the staff to select qualified boards.

[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A positioning tool for precision machining of a thin-walled box member, comprising a machining table (1), characterized in that: The top end of the processing table (1) is fixedly installed with a portal frame (2), the inside of the portal frame (2) is fixedly installed with a motor one (3), the output shaft of the motor one (3) is fixedly sleeved with a screw rod (4), the surface of the screw rod (4) is threadedly installed with a moving base (5), the bottom end of the moving base (5) is fixedly installed with an electric drill (6), the top surface of the processing table (1) is provided with a sliding groove (101), the inside of the sliding groove (101) is fixedly installed with a motor two (7), the output shaft of the motor two (7) is fixedly sleeved with a double thread screw rod one (8), the surface of the double thread screw rod one (8) is threadedly installed with a mounting box (9), the inside of the mounting box (9) is rotatably installed with a rotating wheel (10), the middle part of the rotating wheel (10) is integrally formed with a double thread screw rod two (11), the surface of the double thread screw rod two (11) is threadedly installed with a sliding base (13), the top end of the sliding base (13) is fixedly installed with a mounting block (12), the inside of the mounting block (12) is fixedly installed with a controller (14), one end of the controller (14) is electrically connected with a display screen (16), and the other end thereof is electrically connected with a pressure sensor (15), the surface of the pressure sensor (15) is provided with a spring (18), the outer end of the spring (18) is fixedly connected with an extrusion block (19), the inside of the extrusion block (19) is movably sleeved with a guide rod (17).

2. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The upper end of the moving base (5) is slidably installed in the inside of the portal frame (2).

3. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The bottom end of the mounting box (9) is slidably installed in the inside of the sliding groove (101), and the top surface of the processing table (1) is fixedly installed with a backing plate (102) at the bottom end of the portal frame (2).

4. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The left end of the guide rod (17) is fixedly installed on the side surface of the mounting block (12), and is movably sleeved in the inside of the spring (18).

5. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The outer side of the extrusion block (19) is fixedly installed with a side plate (20).

6. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The number of the extrusion block (19) is four.

7. The positioning tool for precision machining of a thin-walled box member according to claim 1, characterized in that: The sliding base (13) is slidably installed in the inside of the mounting box (9).

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