A material detection and cleaning device for CNC machine tools

Abstract

The present invention discloses a loading detection and cleaning device for CNC machine tools, comprising: a carrier, a wear plate, a float, an air supply pipe joint and a pressure sensor, wherein the wear plate is provided with a slide extending into the carrier, the float is provided in the slide, the pressure sensor is provided in the pressure sensor mounting hole, a trigger rod extending to the top of the wear plate is provided at the top of the pressure sensor, a first spring is provided at the bottom of the pressure sensor, a first cover plate is provided at the top of the float for sealing, a second cover plate is provided at the bottom of the float for sealing, a first blowing hole is provided at intervals on the top of the first cover, and second blowing holes communicating with the cavity are provided at intervals on the upper side of the float in a circumferential manner. Through the above manner, the loading detection and cleaning device for CNC machine tools described in the present invention improves the processing accuracy and product qualification rate, and improves the safety of production by monitoring through the pressure sensor.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control machine tools, in particular to a material detection and cleaning device for numerical control machine tools. Background Art

[0002] In order to realize the automated processing of products by CNC machine tools, robots can be used for loading and unloading, which reduces manual participation, reduces labor costs and operational safety risks, while improving production efficiency, making it suitable for the processing of large quantities of products.

[0003] In the actual production process, due to the residual iron filings on the carrier or the fixture and the uniformity of the product blank, the product is skewed after clamping and the positioning accuracy is poor, which cannot meet the high-precision processing requirements of the product. In addition, there is no loading inspection and cleaning equipment on the CNC machine tool, which leads to a decrease in the qualified rate of the processed products and serious cost waste. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a loading detection and cleaning device for a CNC machine tool, so as to realize the cleaning and loading detection of a carrier and product blanks and improve the processing accuracy.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a material detection and cleaning device for a CNC machine tool, comprising: a carrier, a wear plate, a floating block, an air supply pipe joint and a pressure sensor, the wear plate being horizontally arranged on the carrier, the wear plate being provided with a slide groove extending into the carrier, the floating block being arranged in the slide groove, the wear plate being provided with a pressure sensor mounting hole located on both sides of the slide groove and extending into the carrier, the pressure sensor being arranged in the pressure sensor mounting hole, a trigger rod extending to the top of the wear plate being arranged at the top of the pressure sensor, a first spring being arranged at the bottom of the pressure sensor, a cavity being arranged in the floating block, a first cover plate being arranged at the top of the floating block for sealing, a second cover plate being arranged at the bottom of the floating block for sealing, the air supply pipe joint being arranged at the bottom of the second cover plate, first blowing holes being arranged at intervals at the top of the first cover plate, second blowing holes communicating with the cavity being arranged at intervals at the upper side of the floating block, and a second spring being arranged at the bottom of the second cover plate.

[0006] In a preferred embodiment of the present invention, a clamp is provided on the carrier.

[0007] In a preferred embodiment of the present invention, a threading hole extending to the bottom surface of the carrier is provided at the bottom of the pressure sensor installation hole, and a signal line extending downward through the threading hole is provided at the bottom of the pressure sensor.

[0008] In a preferred embodiment of the present invention, a through hole extending to the bottom surface of the platform is provided at the bottom of the slide groove, and an air supply pipe penetrating through the through hole and extending downward is provided at the bottom of the air supply pipe joint.

[0009] In a preferred embodiment of the present invention, a shock-absorbing pad is provided on the top surface of the first cover plate.

[0010] In a preferred embodiment of the present invention, the bottom surface of the carrier is provided with a stepped hole located below the second cover plate, and a pull rod connected to the second cover plate is provided in the stepped hole.

[0011] In a preferred embodiment of the present invention, the second spring is sleeved on the pull rod.

[0012] In a preferred embodiment of the present invention, mounting plates are provided on both sides of the carrier, and mounting holes are provided on the mounting plates.

[0013] In a preferred embodiment of the present invention, a sealing ring is provided on the trigger rod.

[0014] The beneficial effects of the present invention are as follows: a CNC machine tool loading detection and cleaning device pointed out by the present invention, before the product blank is placed on the carrier, the first blowing hole and the second blowing hole will be used to blow and clean the product blank and the carrier, which greatly reduces the influence of iron filings and particles on the product blank on the clamping accuracy, improves the processing accuracy and product qualification rate, and monitors the force between the trigger rod and the product blank through a pressure sensor. If the pressure is abnormal, it can be manually handled after an alarm, avoiding the scrap problem caused by direct processing, and improving the automation level and production safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 It is a structural schematic diagram of a preferred embodiment of a CNC machine tool material detection and cleaning device of the present invention;

[0017] Figure 2 yes Figure 1 A top view of

[0018] Figure 3 yes Figure 2 AA section view. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1~Figure 3 , the embodiment of the present invention includes:

[0021] like Figure 1~Figure 3 The CNC machine tool material detection and cleaning device shown includes: a carrier 1, a wear plate 8, a floating block 5, an air supply pipe joint 17 and a pressure sensor 4. Mounting plates 2 are arranged on both sides of the carrier 1, and mounting holes 14 are arranged on the mounting plates 2, which are convenient for fixing on the machine by bolts, and the structure is firm. The wear plate 8 is horizontally arranged on the carrier 1. In this embodiment, four countersunk holes are arranged on the wear plate 8, and screws 15 connected to the carrier 1 are installed in the countersunk holes to fix the wear plate 8. The wear plate 8 adopts a stainless steel plate with a smooth surface. It is replaced after being worn to protect the carrier 1, thereby reducing the use and maintenance costs.

[0022] A clamp 7 is provided on the carrier. The clamp 7 can be a fixed clamp, a pneumatic clamp or a hydraulic clamp. A manipulator is used to grab the product blank and then place it on the carrier 1. The positioning accuracy and stability during processing are ensured by limiting or clamping the clamp 7.

[0023] like Figure 3 As shown, a slide groove 23 extending into the carrier 1 is provided in the middle of the wear plate 8, and the floating block 5 is provided in the slide groove 23. In this embodiment, the floating block 5 adopts a rectangular parallelepiped structure, and is guided to move up and down through the slide groove 23. A cavity is provided in the floating block 5 to store compressed air, a first cover plate 16 is provided on the top of the floating block 5 for sealing, and a second cover plate 18 is provided on the bottom of the floating block 5 for sealing, which can be fixed by welding or screw connection, and the structure is firm.

[0024] In this embodiment, the air supply pipe joint 17 is arranged at the bottom of the second cover plate 18, and a through hole 19 extending to the bottom surface of the platform 1 is arranged at the bottom of the slide groove 23. An air supply pipe 24 penetrating through the through hole 19 and extending downward is arranged at the bottom of the air supply pipe joint 17. The air supply pipe 24 is connected to the compressed air supply pipeline to fill compressed air into the cavity of the floating block 5.

[0025] like Figure 2As shown, the top of the first cover plate 16 is provided with first blowing holes 10 at intervals, and the first blowing holes 10 blow the airflow to the product blank to clean the product blank. The upper part of the side of the floating block 5 is provided with second blowing holes 13 connected with the cavity at circumferential intervals, which blow the airflow to the surroundings to clean the surface of the wear plate 8, avoid the residue of iron filings and other particles, improve the clamping accuracy, and help to ensure the processing quality and uniformity of batch products.

[0026] like Figure 3 As shown, a second spring 22 is provided at the bottom of the second cover plate 18 to elastically support the second cover plate 18 and the floating block 5. A stepped hole 21 is provided on the bottom surface of the carrier 1 below the second cover plate 18, and a pull rod 20 connected to the second cover plate 18 is provided in the stepped hole 21. In this embodiment, the pull rod 20 adopts a bolt structure, which is easy to install and is used to limit the second cover plate 18 when it rises. The second spring 22 is sleeved on the pull rod 20, and the structure is stable.

[0027] The product blank is placed on the wear plate 8 to press the float 5 downward, so that the float 5 gradually sinks into the slide groove 23, reducing the loss of airflow, which is conducive to the storage of air in the cavity of the float 5. The valve on the air supply pipe 24 can also be closed during processing to reduce energy consumption. After the product blank is processed, the float 5 gradually floats up during the process of the robot grabbing the product blank for transfer, and the airflow is used to clean the iron filings on the bottom surface of the product blank and the wear plate 8, with a high degree of automation.

[0028] In addition, in this embodiment, a shock-absorbing pad 9 is provided on the top surface of the first cover plate 16 , and the shock-absorbing pad 9 contacts the bottom surface of the product blank to avoid indentation on the bottom surface of the product blank and reduce the impact and noise problems when the product blank contacts the first cover plate 16 .

[0029] In order to monitor the installation accuracy of the product blank, a pressure sensor mounting hole 11 is provided on the wear plate 8, which is located on both sides of the slide groove 23 and extends to the carrier 1. The pressure sensor 4 is arranged in the pressure sensor mounting hole 11. A trigger rod 6 extending to the top of the wear plate 8 is provided on the top of the pressure sensor 4. The trigger rod 6 is pressed down by the product blank to give a pressure to the pressure sensor 4. In this embodiment, a sealing ring is provided on the trigger rod 6 to prevent cutting fluid from entering the pressure sensor mounting hole 11, thereby strengthening the protection of the pressure sensor 4.

[0030] like Figure 1 As shown, a first spring 12 is provided at the bottom of the pressure sensor 4 for elastic buffering to avoid damage to the pressure sensor 4. If there are iron filings on the bottom surface of the product blank or the wear plate 8, it will cause partial non-fit between the product blank and the wear plate 8, the corresponding descending stroke of the trigger rod 6 will be different, and the pressure signal value of the corresponding pressure sensor 4 will be abnormal.

[0031] A threading hole extending to the bottom of the carrier 1 is provided at the bottom of the pressure sensor mounting hole 11, and a signal line 3 extending downward through the threading hole is provided at the bottom of the pressure sensor 4. The signal line 3 is connected to the controller of the CNC machine tool to issue an alarm in case of abnormality to avoid continued processing and resulting in defective products.

[0032] In summary, the CNC machine tool loading detection and cleaning device pointed out in the present invention realizes the cleaning of the product blank before clamping and the monitoring after clamping, which is beneficial to improving production efficiency and product qualification rate, has a high degree of automation, and is conducive to cooperating with the automated production of CNC machine tools.

[0033] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A loading detection and cleaning device for a CNC machine tool, characterized in that: include: A carrier, a wear plate, a floating block, an air supply pipe joint and a pressure sensor, wherein the wear plate is horizontally arranged on the carrier, the wear plate is provided with a slide groove extending into the carrier, the floating block is arranged in the slide groove, the wear plate is provided with pressure sensor mounting holes located on both sides of the slide groove and extending into the carrier, the pressure sensor is arranged in the pressure sensor mounting hole, a trigger rod extending to the top of the wear plate is arranged on the top of the pressure sensor, a first spring is arranged at the bottom of the pressure sensor, a cavity is arranged in the floating block, a first cover plate is arranged on the top of the floating block for sealing, a second cover plate is arranged at the bottom of the floating block for sealing, The air supply pipe joint is arranged at the bottom of the second cover plate, the first cover plate top is provided with first blowing holes at intervals, the upper part of the side of the float block is provided with second blowing holes connected with the cavity at circumferential intervals, the bottom of the second cover plate is provided with a second spring, the bottom of the slide groove is provided with a through hole extending to the bottom surface of the carrier, the bottom of the air supply pipe joint is provided with an air supply pipe extending downward through the through hole, the product blank is placed on the wear plate to press the float block down, so that the float block gradually sinks into the slide groove to reduce the loss of airflow, after the product blank is processed, the float block gradually floats up during the transfer of the product blank, and the airflow is used to clean the bottom surface of the product blank and the wear plate.

2. The CNC machine tool material detection and cleaning device according to claim 1, characterized in that: A clamp is arranged on the carrier.

3. The CNC machine tool loading detection and cleaning device according to claim 1 is characterized in that: A threading hole extending to the bottom surface of the platform is provided at the bottom of the pressure sensor installation hole, and a signal line extending downward through the threading hole is provided at the bottom of the pressure sensor.

4. The CNC machine tool loading detection and cleaning device according to claim 1, characterized in that: A shock-absorbing pad is arranged on the top surface of the first cover plate.

5. The CNC machine tool loading detection and cleaning device according to claim 1, characterized in that: The bottom surface of the carrier is provided with a stepped hole located below the second cover plate, and a pull rod connected to the second cover plate is provided in the stepped hole.

6. The CNC machine tool loading detection and cleaning device according to claim 5, characterized in that: The second spring is sleeved on the pull rod.

7. The loading detection and cleaning device for CNC machine tools according to claim 1, characterized in that: Mounting plates are arranged on both sides of the carrier, and mounting holes are arranged on the mounting plates.

8. The loading detection and cleaning device for CNC machine tools according to claim 1, characterized in that: A sealing ring is arranged on the trigger rod.

Images