Positioning and clamping device for automatic machine manufacturing

Abstract

The utility model relates to the technical field of mechanical automatic manufacturing, in particular to a positioning and clamping device for automatic mechanical manufacturing. The positioning and clamping device comprises a transverse rail, an air pump is slidably installed on the transverse rail, a plurality of pore plates are symmetrically installed on the two sides of the transverse rail, extension pipes are installed in the pore plates in a penetrating mode, the tops of the extension pipes are communicated with pipe joints, air outlets of the air pump are connected with the pipe joints through negative pressure pipes, suction nozzles are communicated with the bottoms of the extension pipes, and springs are arranged on the inner walls of the suction nozzles. A pressure sensor is installed on the inner wall of the top of the suction nozzle, and the top of the spring abuts against the bottom of the pressure sensor. Negative pressure is generated through operation of the air pump, the negative pressure pipe, the pipe connector and the suction nozzle adsorb workpieces, the spring compresses and extrudes the pressure sensor to detect pressure changes, the adsorption state can be judged through the pressure sensor, adsorption failure is prevented, clamping effectiveness is improved, and the whole device is compact in structure and suitable for positioning and clamping application of automatic machine manufacturing.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical automation manufacturing technical field, concretely relates to a positioning clamping device for automatic mechanical manufacturing. BACKGROUND

[0002] In the application process of mechanical manufacturing and automation technology, the positioning clamping device is mainly used for accurately fixing workpieces in the machining process to ensure machining accuracy and process requirements. Common positioning clamping devices include mechanical clamps, pneumatic clamps and hydraulic clamps, which are suitable for different machining scenes. However, in actual application, the contact between the suction nozzle and the workpiece of the traditional pneumatic clamp will affect the adsorption effect of the pneumatic clamp due to uneven workpiece surface or inaccurate suction nozzle position. At the same time, due to the lack of relevant adsorption effect monitoring, the key components such as the suction nozzle in the pneumatic clamp cannot detect adsorption abnormalities or adsorption failures (for example, when the suction nozzle does not completely adhere to the workpiece) in the first time, which leads to errors or missed adsorption phenomena in actual operation, affecting the overall work effect and reducing the adsorption reliability of the workpiece. SUMMARY

[0003] In order to solve the problems existing in the prior art, the utility model provides a positioning clamping device for automatic mechanical manufacturing which can monitor the adhesion state of the suction nozzle in real time, and the specific scheme is as follows:

[0004] A positioning clamping device for automatic mechanical manufacturing, comprising a rodless cylinder, a cross rail and a gas pump, one end of the cross rail is connected to the front surface of the rodless cylinder, and the gas pump is arranged on the cross rail, characterized in that: a plurality of hole plates are symmetrically fixed in the horizontal direction of the cross rail, an extension pipe is fixed through the hole plates, a pipe joint is communicated at the top of the extension pipe, and the air inlet of the gas pump is connected in communication with all the pipe joints through a negative pressure pipe; a suction nozzle is communicated at the bottom of the extension pipe, a spring is arranged on the inner wall of the suction nozzle, a pressure sensor is installed at the top of the inner wall of the suction nozzle, the top of the spring abuts against the bottom of the pressure sensor, a limiting ring is fixedly connected to the inner wall of the suction nozzle, the limiting ring is located at the bottom of the spring, the side wall of the suction nozzle and the limiting ring are made of flexible material, preferably rubber material; a controller is installed on the rear surface of the rodless cylinder, the signal output end of the pressure sensor is connected in signal with the controller, and the controller is electrically connected with the gas pump.

[0005] Further, one end of the cross rail is slidingly connected to the rodless cylinder.

[0006] Further, a horizontal bottom plate is installed at the bottom of the rodless cylinder, and a waist-shaped hole is formed in the bottom plate.

[0007] Further, the gas pump is slidingly installed on the cross rail.

[0008] Furthermore, the outer wall of the extension tube is provided with anti-slip threads.

[0009] Furthermore, the outer wall of the extension tube is connected to a fixing nut and an adjusting nut by threads, the fixing nut being located below the orifice plate and the adjusting nut being located above the orifice plate.

[0010] The beneficial effects of this utility model are as follows:

[0011] (1) This utility model generates negative pressure by running an air pump, which causes the negative pressure pipe, pipe joint and suction nozzle to adsorb the workpiece. The spring compresses and squeezes the pressure sensor to detect the pressure change. When some suction nozzles do not fit the workpiece, the pressure sensor is abnormal, which can judge and detect the adsorption state in time and feed the signal back to the controller. The negative pressure of the air pump is appropriately increased to prevent adsorption failure, improve the clamping effectiveness, and make the overall device compact and suitable for mechanical design, manufacturing and its automation application.

[0012] (2) The horizontal rail of this device is slidably connected to the rodless cylinder. The height of the horizontal rail can be adjusted appropriately according to the height of the workpiece being suctioned, so that the suction nozzle can fit the workpiece more easily. At the same time, the air pump can also slide on the horizontal rail, and the position of the air pump can be adjusted according to different processing conditions. Attached Figure Description

[0013] The embodiments of this utility model will be further described below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This invention presents a three-dimensional structural schematic diagram of a positioning and clamping device for automated mechanical manufacturing.

[0015] Figure 2 A schematic diagram of the positioning and clamping device for automated mechanical manufacturing of this utility model is shown.

[0016] Figure 3 A cross-sectional schematic diagram of the extension tube and suction nozzle of the positioning and clamping device for automated mechanical manufacturing of this utility model is shown.

[0017] Figure 4 It shows Figure 3 A magnified structural diagram of part A in the middle.

[0018] The components include: 1. Rodless cylinder; 2. Horizontal rail; 3. Orifice plate; 4. Air pump; 5. Negative pressure pipe; 6. Pipe connector; 7. Extension pipe; 8. Fixing nut; 9. Adjusting nut; 10. Suction nozzle; 11. Anti-slip texture; 12. Base plate; 13. Controller; 14. Pressure sensor; 15. Spring; and 16. Limiting ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0020] In one embodiment, as shown in the appendix Figures 1-4 As shown, an automated positioning and clamping device for mechanical manufacturing includes a rodless cylinder 1, a horizontal rail 2, and an air pump 4. One end of the horizontal rail 2 is slidably connected to the front surface of the rodless cylinder 1, allowing the rodless cylinder 1 to drive the horizontal rail 2 to move up and down. A horizontal base plate 12 is mounted on the bottom of the rodless cylinder 1, and an oblong hole is provided on the base plate 12. The oblong hole on the base plate 12, together with a fixing component, can fix the positioning and clamping device in the workpiece processing area. The air pump 4 is slidably mounted on the horizontal rail 2 and can slide along the horizontal rail 2. Multiple perforated plates 3 are symmetrically fixed on both sides of the horizontal rail 2. An extension tube 7 is fixed through the perforated plate 3. The outer wall of the extension tube 7 is provided with anti-slip threads 11. The outer wall of the extension tube 7 is connected to a fixing nut 8 and an adjusting nut 9 by threads. The fixing nut 8 is located below the perforated plate 3, and the adjusting nut 9 is located above the perforated plate 3. The extension tube 7 is fixed on the perforated plate 3 by adjusting the extension tube 7 downward and fitting it against the upper surface of the perforated plate 3. The position of the suction nozzle 10 is positioned by adjusting the installation position of the extension tube 7. The anti-slip texture 11 can increase the friction of the outer wall of the extension tube 7, making it convenient for the operator to move or rotate and adjust the extension tube 7. The top of the extension tube 7 is connected to a pipe connector 6. The air inlet of the air pump 4 is connected to all pipe connectors 6 through a negative pressure pipe 5. The bottom of the extension tube 7 is connected to a suction nozzle 10. A spring 15 is installed on the inner wall of the suction nozzle 10. A pressure sensor 14 is installed on the top of the inner wall of the suction nozzle 10. The top of the spring 15 abuts against the bottom of the pressure sensor 14. A limit ring 16 is fixedly connected to the inner wall of the suction nozzle 10. The limit ring 16 is located at the bottom of the spring 15. The limit ring 16 inside the suction nozzle 10 can prevent the spring 15 from detaching from the suction nozzle 10, ensuring that the movement range of the spring 15 is controlled. The wall of the suction nozzle 10 below the limit ring 16 is open, i.e., inverted funnel-shaped, which is conducive to better fit to the workpiece. The suction nozzle 10 and the limit ring are integrally molded from rubber. A controller 13 is installed on the rear surface of the rodless cylinder 1. The signal output terminal of the pressure sensor 14 is connected to the controller 13. The controller 13 is electrically connected to the air pump 4.

[0021] During use, the air pump 4 operates to generate negative pressure in the negative pressure pipe 5, pipe connector 6, and suction nozzle 10. This negative pressure is used to clamp and adsorb the workpiece, ensuring that the workpiece is gripped and adsorbed when it comes into contact with the suction nozzle 10. When the workpiece contacts the suction nozzle 10, it adheres tightly to the flexible rubber wall and retracts, compressing the spring 15 and further squeezing the pressure sensor 14. This causes a change in pressure to be detected and transmitted as a signal to the controller 13 for real-time monitoring. If the workpiece is uneven or some suction nozzles 10 cannot be positioned to adhere to the workpiece for adsorption, the pressure signal transmission will be different or significantly different. The pressure signal change of the pressure sensor 14 determines whether the suction nozzle 10 is adsorbing the workpiece and feeds back to the controller 13 to adjust the negative pressure of the air pump, preventing the workpiece from failing to adhere and be adsorbed.

[0022] The foregoing description describes some exemplary embodiments of this utility model. It is understood that the above embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. The features in these embodiments can be recombine in a suitable manner, and the resulting solutions are still within the scope of protection claimed by this utility model. Based on the above embodiments, all other embodiments obtained by those skilled in the art without inventive effort, that is, all modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, fall within the scope of protection claimed by this utility model.

Claims

1. A positioning and clamping device for automated mechanical manufacturing, comprising a rodless cylinder (1), a horizontal rail (2), and an air pump (4), wherein one end of the horizontal rail (2) is connected to the front surface of the rodless cylinder (1), and the air pump (4) is disposed on the horizontal rail (2), characterized in that: The horizontal rail (2) is symmetrically fixed with multiple perforated plates (3) in the horizontal direction. An extension tube (7) is fixed through the perforated plate (3). The top of the extension tube (7) is connected to a pipe joint (6). The air inlet of the air pump (4) is connected to all the pipe joints (6) through a negative pressure pipe (5). The bottom of the extension tube (7) is connected to a suction nozzle (10). The inner wall of the suction nozzle (10) is provided with a spring (15). The top of the inner wall of the suction nozzle (10) is equipped with a pressure sensor (14). The top of (15) abuts against the bottom of the pressure sensor (14), and the inner wall of the suction nozzle (10) is fixedly connected to a limiting ring (16). The limiting ring (16) is located at the bottom of the spring (15). The side wall of the suction nozzle (10) and the limiting ring (16) are made of flexible material. A controller (13) is installed on the rear surface of the rodless cylinder (1). The signal output terminal of the pressure sensor (14) is connected to the controller (13). The controller (13) is electrically connected to the air pump (4).

2. The positioning and clamping device for automated mechanical manufacturing according to claim 1, characterized in that, One end of the horizontal rail (2) is slidably connected to the rodless cylinder (1).

3. The positioning and clamping device for automated mechanical manufacturing according to claim 1, characterized in that, The bottom of the rodless cylinder (1) is equipped with a horizontal base plate (12), and the base plate (12) has an oblong hole.

4. The positioning and clamping device for automated mechanical manufacturing according to claim 1, characterized in that, The air pump (4) is slidably mounted on the horizontal rail (2).

5. The positioning and clamping device for automated mechanical manufacturing according to claim 1, characterized in that, The outer wall of the extension tube (7) is provided with anti-slip threads (11).

6. The positioning and clamping device for automated mechanical manufacturing according to claim 5, characterized in that, The outer wall of the extension tube (7) is connected by a fixing nut (8) and an adjusting nut (9) by threads. The fixing nut (8) is located below the orifice plate (3), and the adjusting nut (9) is located above the orifice plate (3).

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