Pneumatic workpiece detection device

Abstract

The pneumatic workpiece detection device comprises a central air outlet pull rod arranged in a main shaft, a pneumatic piston is arranged at the front end of the central air outlet pull rod, an air cylinder sleeve is arranged at the front end of the pneumatic piston, and a ventilation chuck end cover communicated with the air cylinder sleeve is arranged in the front end of the main shaft. A plurality of ventilation chuck positioning blocks are arranged on one side of the front end of the main shaft, air tightness detection air holes communicated with the ventilation chuck end cover are formed in the ventilation chuck positioning blocks, and the rear end of the center air outlet pull rod is connected with a rotary center air outlet structure. Whether a workpiece is clamped in place or not can be detected in multiple directions, so that the situation that clamping is not in place is greatly reduced, the price is low, and the detection efficiency is high; and meanwhile, the effect of effectively protecting employees in the machining industry is facilitated, the yield can be increased, and the operation benefits can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of machining equipment, and in particular to a pneumatic workpiece detection device. Background Art

[0002] Currently, large numbers of workpieces need to be secured to fixtures every day during high-volume machining. Whether clamped manually or by a robotic arm, improper clamping is unavoidable. Improper workpiece clamping can lead to numerous safety issues, such as uneven cutting on one side, reduced tool life, lower yield rates, and even tool damage leading to machining accidents. In severe cases, the fixture can fail to secure the workpiece, causing it to be thrown from the machine and injuring nearby personnel.

[0003] In related technologies, there are four main approaches to reducing clamping errors in high-volume processing: customizing higher-precision fixtures; performing manual inspection before processing; using higher-precision robotic arms; and installing detection probes. However, these approaches are either expensive or inefficient. Utility Model Content

[0004] The purpose of this application is to provide a pneumatic workpiece inspection device to address the problems of reducing clamping errors in large-scale processing in related technologies. There are four main methods: customizing higher-precision fixtures; performing manual inspection before processing; using higher-precision robotic arms; and installing inspection probes. However, these methods are either expensive or inefficient.

[0005] The present application provides a pneumatic workpiece detection device that adopts the following technical solution:

[0006] A pneumatic workpiece detection device includes a central air outlet rod arranged inside the main spindle, a pneumatic piston is provided at the front end of the central air outlet rod, a cylinder sleeve is provided at the front end of the pneumatic piston, a vent chuck end cover connected to the cylinder sleeve is provided inside the front end of the main spindle, a plurality of vent chuck positioning blocks are provided on one side of the front end of the main spindle, and airtight detection holes connected to the vent chuck end cover are provided on the plurality of vent chuck positioning blocks, and the rear end of the central air outlet rod is connected to a rotating central air outlet structure.

[0007] Furthermore, a plurality of end cover air outlet holes are provided on the end cover of the vent chuck, and the plurality of end cover air outlet holes are respectively communicated with the plurality of air tightness detection air holes, and sealing rings are provided in the plurality of end cover air outlet holes.

[0008] Furthermore, the pneumatic piston is provided with a piston end tube threadedly connected to the central air outlet pull rod, and a bell mouth is provided on the side of the pneumatic piston away from the piston end tube, and the bell mouth is connected to the tube hole of the piston end tube.

[0009] Furthermore, a plurality of sealing grooves are formed on the outer side wall of the pneumatic piston, and sealing rubber rings are provided in each of the sealing grooves. The sealing rubber rings are respectively pressed tightly against the inner side of the cylinder liner.

[0010] Furthermore, a pull rod centering ring is provided on the outer side of the central air outlet pull rod, and a tight fitting is provided between the pull rod centering ring and the main shaft.

[0011] Furthermore, the tight member is a rubber ring, and a tight ring groove matching with the rubber ring is provided on the outer side of the pull rod centering ring, and the rubber ring is tightly pressed against the inner wall of the main shaft.

[0012] Furthermore, a central air outlet fixing fork is provided on the outer side of the rotating central air outlet structure.

[0013] Furthermore, a nylon sheath is provided between the rear end of the central air outlet pull rod and the main shaft.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] By setting up a pneumatic workpiece detection device that cooperates with a center air outlet pull rod, a pneumatic piston, a cylinder liner, a vent chuck end cover, a vent chuck positioning block, an airtightness detection hole and a rotating center air outlet structure, it is possible to detect whether the workpiece is clamped in place in multiple directions, which not only greatly reduces the situation of improper clamping, but also is low-cost and highly efficient in detection. At the same time, it helps to effectively protect practitioners in the machining industry, and can also improve the yield rate and enhance operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a pneumatic workpiece detection device according to an embodiment of the present application.

[0017] Figure 2 yes Figure 1 sectional view of .

[0018] Figure 3 This is a structural diagram of an embodiment of the present application in which the positioning block of the ventilation chuck is installed on one side of the chuck.

[0019] Figure 4 It is a structural schematic diagram of the vent chuck end cover of an embodiment of the present application.

[0020] Figure 5 It is a structural schematic diagram of the ventilation chuck positioning block of an embodiment of the present application.

[0021] Description of reference numerals:

[0022] 1. Spindle; 11. Transition plate; 12. Chuck; 13. Clamping claw; 2. Center air outlet pull rod; 21. Pull rod centering ring; 3. Pneumatic piston; 31. Piston end tube; 4. Cylinder liner; 5. Ventilation chuck end cover; 51. Second positioning hole; 52. End cover air outlet hole; 6. Ventilation chuck positioning block; 61. Positioning plate; 62. First positioning hole; 63. Screw hole; 64. Air tightness detection hole; 65. Contact block; 7. Rotating center air outlet structure; 8. Center air outlet fixing fork; 9. Nylon sheath; 10. Workpiece. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-5 This application is described in further detail.

[0024] The present application discloses a pneumatic workpiece detection device, referring to Figure 1 and Figure 2 In this embodiment, the pneumatic workpiece detection device includes a central air outlet rod 2, a pneumatic piston 3, a cylinder liner 4, a vent chuck end cap 5, a vent chuck positioning block 6, and a rotating central air outlet structure 7. The central air outlet rod 2 is mounted in the middle of the spindle 1, and a rod centering ring 21 is mounted on the outside of the central air outlet rod 2. A tight fitting is provided between the rod centering ring 21 and the spindle 1 to tightly secure the central air outlet rod 2.

[0025] Specifically, the tightening member is a rubber ring, and a tightening ring groove is formed on the outer wall of the tie rod centering ring 21. The tightening ring groove cooperates with the rubber ring, allowing the rubber ring to be installed on the outer side of the tie rod centering ring 21. In this way, when the center outlet tie rod 2 is installed inside the spindle 1, the rubber ring tightly abuts against the inner wall of the spindle 1, thereby ensuring a tighter fit between the center outlet tie rod 2 and the spindle 1, thereby improving the stability of the center outlet tie rod 2. When the lathe is working, the center outlet tie rod 2 will rotate steadily with the spindle 1.

[0026] At the same time, refer to Figure 1 and Figure 2 In this embodiment, the pneumatic piston 3 is installed at the front end of the central air outlet rod 2, and the transition disk 11 and the chuck 12 are also installed in sequence at the front end of the main shaft 1, and the pneumatic piston 3 is located inside the transition disk 11 and the chuck 12. Specifically, in this embodiment, the pneumatic piston 3 is installed with a piston end tube 31 near the front end of the central air outlet rod 2. The outer side of the piston end tube 31 is provided with an external thread, and the inner side of one end of the central air outlet rod 2 is provided with an internal thread, so that the piston end tube 31 is threadedly connected to the central air outlet hole of the central air outlet rod 2, so that the central air outlet rod 2 and the pneumatic piston 3 are tightly connected to each other, facilitating the flow of air.

[0027] A bell mouth is also provided on the side of the pneumatic piston 3 away from the piston end tube 31, and the bell mouth is connected to the tube hole of the piston end tube 31, so that the air flow can flow out of the piston end tube 31 faster, thereby facilitating the subsequent rapid detection of whether the workpiece 10 is clamped in place.

[0028] In addition, refer to Figure 1 and Figure 2 In this embodiment, the cylinder liner 4 is positioned at the front end of the pneumatic piston 3, facing away from the piston end tube 31, and is located within the chuck 12. This coordinated structure between the cylinder liner 4 and the pneumatic piston 3 facilitates installation, replacing a hose connection and thereby reducing the risk of failure. Furthermore, two sealing grooves are defined on the outer wall of the pneumatic piston 3, each containing a sealing rubber ring. These two sealing rubber rings abut against the inner groove wall of the cylinder liner 4, thereby improving the seal between the cylinder liner 4 and the pneumatic piston 3.

[0029] In addition, refer to Figure 3-Figure 5 In this embodiment, the vent chuck end cap 5 is securely mounted inside the front end of the chuck 12 of the spindle 1 via multiple bolts. The rear end of the vent chuck end cap 5 is tightly connected to the end of the cylinder liner 4 facing away from the pneumatic piston 3 via threads. Three vent chuck positioning blocks 6 are provided, each mounted on one side of the front end of the chuck 12 of the spindle 1 via a fixing member.

[0030] At the same time, positioning plates 61 are installed at the front ends of these vent chuck positioning blocks 6, and first positioning holes 62 are symmetrically opened on these positioning plates 61, and a plurality of second positioning holes 51 are opened at the front end of the vent chuck end cover 5; when the vent chuck positioning block 6 is installed on one side of the chuck 12, the first positioning hole 62 and the second positioning hole 51 correspond to each other, and then a plurality of positioning pins are sequentially inserted into the positioning plate 61 and the vent chuck end cover 5 along the first positioning hole 62 and the second positioning hole 51, thereby achieving the front ends of the vent chuck positioning blocks 6 being firmly positioned on the vent chuck end cover 5.

[0031] Specifically, in this embodiment, the fixing part is a screw, and screw holes 63 are symmetrically opened at the tail ends of the three vent chuck positioning blocks 6, and thread grooves corresponding to the screw holes 63 are symmetrically opened on the front end side of the chuck 12. The screw holes 63 and the thread grooves are respectively connected to the screw threads, so that the vent chuck positioning block 6 is firmly installed on the front end side of the chuck 12 by the screws.

[0032] In addition, refer to Figure 3-Figure 5In the embodiment, three end cover air outlet holes 52 are formed on the vent chuck end cover 5, which are located between the second positioning holes 51, and an air tightness detection hole 64 is formed on the top of each vent chuck positioning block 6. Meanwhile, a contact block 65 is installed on one side of the top of each vent chuck positioning block 6, and the air tightness detection hole 64 penetrates the contact block 65. When the workpiece 10 abuts against the contact block 65, the contact block 65 can position the workpiece 10, so that the air tightness detection hole 64 contacts the workpiece 10, thereby facilitating the subsequent detection of whether the workpiece 10 is clamped in place.

[0033] When the vent chuck positioning block 6 is fixedly connected with the vent chuck end cover 5, the air tightness detection hole 64 corresponds to the end cover air outlet hole 52, so that the vent chuck positioning block 6 is pressed against the gap between the air tightness detection hole 64 and the end cover air outlet hole 52 by the tail screw, thereby making the air tightness detection hole 64 and the end cover air outlet hole 52 tightly communicate with each other to facilitate the flow of air.

[0034] Preferably, in the embodiment, a sealing ring is installed in the end cover air outlet hole 52. When the vent chuck positioning block 6 is fixedly abutted with the vent chuck end cover 5, the sealing ring abuts with the vent chuck positioning block 6, thereby further improving the tightness between the vent chuck positioning block 6 and the vent chuck end cover 5.

[0035] Secondly, referring to Figure 1 and Figure 2 In the embodiment, the air outlet end of the rotating center air outlet structure 7 is connected with the rear end of the center air outlet pull rod 2, so that the air outlet end of the rotating center air outlet structure 7 is tightly inserted into the center air outlet hole of the center air outlet pull rod 2, thereby providing stable air pressure to the inside of the center air outlet pull rod 2 during the operation of the lathe. Meanwhile, a center air outlet fixing fork 8 is placed outside the rotating center air outlet structure 7, which is installed on the lathe. Through the setting of the center air outlet fixing fork 8, the air pipes on the rotating center air outlet structure 7 can be effectively fixed, thereby preventing the air pipes from being twisted and knotted.

[0036] Preferably, referring to Figure 1 and Figure 2 In the embodiment, a nylon sheath 9 is installed between the rear end of the center air outlet pull rod 2 and the inside of the rear end of the main shaft 1, which is sleeved on the rear end of the center air outlet pull rod 2, thereby reducing the shaking of the center air outlet pull rod 2 and improving the machining precision. In addition, three clamping jaws 13 are installed on the front end of the chuck 12, which are spaced apart from the three vent chuck positioning blocks 6, and the clamping jaws 13 can effectively clamp the workpiece 10.

[0037] When the rotating center gas outlet structure 7 works, the internal air pressure of the center gas outlet pull rod 2 is increased; if the workpiece 10 is installed in place, the internal air pressure reaches the specified value, and the workpiece 10 can be machined; if the workpiece 10 is not installed in place, the air pressure cannot reach the specified value, and an alarm stops the machine, and the workpiece 10 needs to be clamped again.

[0038] Therefore, by setting the center gas outlet pull rod 2, the pneumatic piston 3, the cylinder sleeve 4, the air passage chuck end cover 5, the air passage chuck positioning block 6, the air tightness detection air hole 64 and the rotating center gas outlet structure 7, the pneumatic workpiece detection device can detect whether the workpiece 10 is clamped in place from multiple directions, so as to not only greatly reduce the situation that the workpiece is not clamped in place, but also reduce the price, improve the detection efficiency; at the same time, it is helpful to effectively protect the employees in the machining industry, and can also improve the yield and operation efficiency.

[0039] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. Pneumatic workpiece detection device, characterized by: The invention comprises a central air outlet rod (2) arranged inside the main shaft (1), a pneumatic piston (3) is arranged at the front end of the central air outlet rod (2), a cylinder sleeve (4) is arranged at the front end of the pneumatic piston (3), a vent chuck end cover (5) connected to the cylinder sleeve (4) is arranged inside the front end of the main shaft (1), a plurality of vent chuck positioning blocks (6) are arranged on one side of the front end of the main shaft (1), and airtightness detection holes (64) connected to the vent chuck end cover (5) are opened on the plurality of vent chuck positioning blocks (6), and the rear end of the central air outlet rod (2) is connected to a rotating central air outlet structure (7).

2. The pneumatic workpiece detection device according to claim 1, characterized in that: The vent chuck end cover (5) is provided with a plurality of end cover air outlet holes (52), the plurality of end cover air outlet holes (52) are respectively communicated with the plurality of air tightness detection air holes (64), and sealing rings are provided in the plurality of end cover air outlet holes (52).

3. The pneumatic workpiece detection device according to claim 1, characterized in that: The pneumatic piston (3) is provided with a piston end tube (31) threadedly connected to the central air outlet pull rod (2), and a bell mouth is provided on the side of the pneumatic piston (3) away from the piston end tube (31), and the bell mouth is connected to the tube hole of the piston end tube (31).

4. The pneumatic workpiece detection device according to claim 3, characterized in that: The outer side wall of the pneumatic piston (3) is provided with a plurality of sealing grooves, each of which is provided with a sealing rubber ring, and each of the sealing rubber rings is tightly pressed against the inner side of the cylinder sleeve (4).

5. The pneumatic workpiece detection device according to claim 1, characterized in that: A rod centering ring (21) is provided on the outer side of the central air outlet rod (2), and a tight fitting is provided between the rod centering ring (21) and the main shaft (1).

6. The pneumatic workpiece detection device according to claim 5, characterized in that: The tight member is a rubber ring, and a tight ring groove matching the rubber ring is provided on the outer side of the pull rod centering ring (21), and the rubber ring is tightly pressed against the inner wall of the main shaft (1).

7. The pneumatic workpiece detection device according to claim 1, characterized in that: A central air outlet fixing fork (8) is provided on the outer side of the rotating central air outlet structure (7).

8. The pneumatic workpiece detection device according to claim 1, characterized in that: A nylon sheath (9) is provided between the rear end of the central air outlet pull rod (2) and the main shaft (1).

Images