Image acquisition device for numerical control machine tools

Abstract

The present invention provides an image acquisition device for a numerically controlled machine tool, comprising: a photographing mechanism for photographing a tool state; a driving mechanism for driving the photographing mechanism to move; and a bearing mechanism for bearing the driving mechanism; the driving mechanism comprises: a power unit and a driving rod, the power unit is fixed on the bearing mechanism, the output end of the power unit is connected to one end of the driving rod, and the other end of the driving rod is connected to the photographing mechanism, the power unit drives the driving rod to move, and the driving rod drives the photographing mechanism to move; the technical solution of the present invention has a simple structure, realizes the photographing and recording of the tool wear state, and the operator further judges whether the tool needs to be replaced in time through the photographed image or video, so as to avoid the tool from breaking during the equipment processing, which affects the processing efficiency and the personal safety of the operator.

Description

Technical Field

[0001] The invention relates to the field of numerical control machine tool control, and in particular to an image acquisition device for numerical control machine tools. Background Art

[0002] In the application process of CNC machine tools, various tools are often involved. In the specific use process, the tools will cause different degrees of wear according to the use environment, use parameters, and use time. The wear of the tools will directly affect the precision of mechanical processing, the efficiency of processing and the economic benefits of the enterprise. Especially when the CNC equipment is in a semi-closed state, it is difficult for operators outside the equipment to observe the status of the tools. If the tool breaks during the processing of the equipment, it may even endanger the personal safety of the operator. Summary of the invention

[0003] The present invention provides an image acquisition device for a numerically controlled machine tool to overcome the above technical problems.

[0004] The present invention comprises:

[0005] A photographing mechanism for photographing the status of a tool;

[0006] A driving mechanism for driving the shooting mechanism to move;

[0007] A carrying mechanism for carrying the driving mechanism;

[0008] The driving mechanism comprises: a power unit and a driving rod. The power unit is fixed to the other end of the supporting mechanism rod and is connected to the shooting mechanism. The power unit drives the driving rod to move, and the driving rod drives the shooting mechanism to move.

[0009] Furthermore, the bearing mechanism further comprises:

[0010] A storage box for accommodating the photographing mechanism;

[0011] The containing box is fixed to one end of the carrying mechanism and forms an "L"-shaped structure with the carrying mechanism. The power unit is a rodless cylinder, which is arranged in the space formed by the carrying mechanism and the containing box, so that the device has a rectangular parallelepiped structure.

[0012] The driving rod moves in the carrying mechanism and drives the shooting mechanism to enter and exit the containing box.

[0013] Furthermore, it also includes: a connecting plate,

[0014] One end of the connecting plate is connected to the output end of the power unit, and the other end of the connecting plate is vertically fixed to one end of the connecting shaft. The connecting shaft passes through the bottom of the supporting mechanism, and the other end of the connecting shaft is fixedly connected to the transmission rod. The connecting shaft passes through the bottom surface of the supporting mechanism and moves, and one end of the transmission rod is rotatably connected to the end of the driving rod away from the shooting mechanism.

[0015] Furthermore, the driving mechanism further comprises:

[0016] A rotating mechanism for driving the driving rod to rotate;

[0017] The rotating mechanism is disposed in the containing box, and the rotating mechanism comprises:

[0018] A rack is perpendicular to the driving rod and is disposed in a first channel at the bottom of the containing box; both ends of the first channel are connected to a first pneumatic joint;

[0019] a gear sleeved on the driving rod and meshing with the rack;

[0020] The gas entering from the first pneumatic joint drives the rack to move in the first channel, and the movement direction is perpendicular to the driving rod; the rack drives the gear to rotate, the gear drives the driving rod to rotate, and the driving rod drives the shooting mechanism to rotate to the bottom of the tool to shoot the status.

[0021] Furthermore, it also includes:

[0022] A water spraying part and an air blowing part for cleaning the tool;

[0023] The water spraying part and the air blowing part are fixed on the carrying mechanism;

[0024] The water spraying part is communicated with the third pneumatic joint, and the air blowing part is communicated with the fourth pneumatic joint.

[0025] Furthermore, it also includes:

[0026] An air blowing ring for cleaning the photographing mechanism;

[0027] The air blowing ring is arranged at the shooting end of the shooting mechanism;

[0028] The air blowing ring is communicated with the second pneumatic joint.

[0029] Furthermore, the connecting shaft is vertically fixedly connected to the transmission rod.

[0030] Furthermore, the gear is interference fit with the driving rod.

[0031] Further, it also includes: a sealing ring;

[0032] The bearing mechanism is provided with a first air inlet channel and a second air inlet channel; the driving rod is provided with a third air inlet channel, a first through hole is provided on a side wall of the third air inlet channel, a shell is provided on the outer side of the driving rod, a second through hole is provided on the side wall of the shell, the first through hole is connected to the second through hole, and the shooting mechanism is provided with a fourth air inlet channel;

[0033] One end of the first air inlet channel is communicated with the second pneumatic joint arranged on the side wall of the bearing mechanism, the other end of the first air inlet channel is communicated with one end of the second air inlet channel, and the other end of the second air inlet channel is communicated with the second through hole; one end of the third air inlet channel is sealed, and the other end is communicated with one end of the fourth air inlet channel, and the other end of the fourth air inlet channel is communicated with the air inlet hole arranged on the side wall of the blowing ring; the sealing ring is sleeved on the housing and arranged on both sides of the second through hole;

[0034] Furthermore, the shooting mechanism is provided with a baffle plate engaged with the containing box.

[0035] The technical solution of the present invention has a simple structure and realizes the photographic record of the tool wear status. The operator can further determine whether the tool needs to be replaced in time through the photographed images or videos to avoid tool breakage during equipment processing, which affects processing efficiency and the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 It is a schematic diagram of the overall structure of the image acquisition device for CNC machine tools of the present invention;

[0038] Figure 2 The image acquisition device for numerically controlled machine tools of the present invention Figure 1 A magnified view of middle;

[0039] Figure 3 It is a structural schematic diagram of another viewing angle of the image acquisition device for CNC machine tools of the present invention;

[0040] Figure 4 The image acquisition device for numerically controlled machine tools of the present invention Figure 3 Enlarged view of middle B;

[0041] Figure 5 It is a cross-sectional view of the driving mechanism of the image acquisition device for a numerically controlled machine tool of the present invention;

[0042] Figure 6 It is a schematic diagram of the photographing mechanism of the image acquisition device for a numerically controlled machine tool of the present invention being retracted into the storage box;

[0043] Figure 7 The image acquisition device for numerically controlled machine tools of the present invention Figure 6 Another perspective structural diagram of;

[0044] Figure 8 It is a schematic diagram of the rotating mechanism of the image acquisition device for CNC machine tools of the present invention;

[0045] Fig. 9 This is a schematic diagram of the overall structure of the air blowing ring of the image acquisition device for a CNC machine tool of the present invention;

[0046] Fig.10 It is a schematic diagram of the air inlet channel of the blowing ring of the CNC machine tool image acquisition device of the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0048] Embodiment 1:

[0049] Specifically, if Figure 1 As shown, the device includes a photographing mechanism 1 for photographing the state of a tool 3, a driving mechanism for driving the photographing mechanism 1 to move, and a supporting mechanism 20 for supporting the driving mechanism; the photographing mechanism 1 can be a camera or any device capable of photographing images; the driving mechanism includes: a power unit 2 and a driving rod 4; the power unit 2 is a cylinder, and the cylinder is connected to two fifth pneumatic joints 22 fixed on the supporting mechanism 20 to achieve gas introduction; the driving rod 4 is a solid cylinder; the cylinder is fixed on the supporting mechanism 20, the cylinder output end is connected to one end of the driving rod 4, and the other end of the driving rod 4 is connected to the photographing mechanism 1, the cylinder drives the driving rod 4 to move in a straight line (the cylinder driving the driving rod to move belongs to the prior art and is not repeated in this application), and the driving rod 4 drives the photographing mechanism 1 to move to a set position, at which time the photographing mechanism photographs the side of the tool, including taking pictures or recording videos.

[0050] Embodiment 2:

[0051] In order to prevent the camera from being exposed and damaged by workpieces or other equipment, a receiving box 6 for receiving the camera is provided at one end of the carrying mechanism 20 close to the camera, and the carrying mechanism 20 is in an "L"-shaped structure. The power unit 2 is a rodless cylinder, specifically a magnetic rodless cylinder, which is provided in the space formed by the carrying mechanism 20 and the receiving box 6, so that the device is in a rectangular parallelepiped structure.

[0052] The driving rod 4 moves in the supporting mechanism 20 and drives the photographing mechanism 1 to enter and exit the accommodating box 6 .

[0053] When the camera finishes taking pictures, the cylinder can drive the driving rod 4 to bring the camera into the storage box 6 for protection. After the camera enters the storage box 6, a baffle 33 is provided on the camera to engage with the side wall of the storage box 6 to ensure that the space of the storage box is closed and play a better protective role.

[0054] Embodiment three:

[0055] like Figure 1-3 As shown, in order to reduce the length of the driving rod 4 and the length of the entire device, a connecting plate 5 is slidably connected to the bottom of the supporting mechanism 20 through a track 21, one end of the connecting plate 5 is connected to the output end of the cylinder, and the other end of the connecting plate 5 is vertically fixed to one end of a connecting shaft 12, the connecting shaft 12 is passed through the bottom of the supporting mechanism, and the other end of the connecting shaft 12 is vertically fixedly connected to a transmission rod 11, the connecting shaft 12 passes through the bottom surface of the supporting mechanism 20 and moves, and one end of the transmission rod 11 is rotatably connected to the end of the driving rod 4 away from the shooting mechanism 1.

[0056] Embodiment 4:

[0057] In order to be able to capture the wear status of the bottom of the tool 3, a rotating mechanism is also included for driving the driving rod 4 to rotate; the rotating mechanism is arranged in the accommodating box 6, and the rotating mechanism includes: a rack 7 perpendicular to the driving rod 4 and arranged in a first channel 9 at the bottom of the accommodating box 6; a gear 8 interference fit with the driving rod 4 and meshing with the rack 7; the gas entering from the first pneumatic joint 10 drives the rack 7 to move in the first channel 9, and the movement direction is perpendicular to the driving rod 4; the rack 7 drives the gear 8 to rotate, the gear 8 drives the driving rod 4 to rotate, and the driving rod 4 drives the shooting mechanism 1 to rotate to the bottom of the tool 3 to shoot the status.

[0058] When it is necessary to photograph the bottom surface of the tool 3, the tool 3 moves to the top of the camera. At this time, three proximity switches (not shown in the figure) for detecting the position of the rack 7 are arranged on the first channel 9. When the camera reaches the farthest end after the above operation, the proximity switch detects the position of the rack. Figure 8 As shown, one of the two first pneumatic joints 10 provided at both ends of the first channel 9 is supplied with gas, pushing the rack to move in the opposite direction in the first channel 9, thereby driving the gear 8 to rotate. Since one end of the driving rod 4 is connected to one end of the transmission rod 11 through a bearing 13, as shown in FIG. Figure 5 As shown, one end of the limit member 23 is vertically fixed on the transmission rod 11, and the other end of the limit member 23 is stuck on the supporting mechanism and does not move. The limit member 23 is parallel to the rack, so the drive rod can rotate synchronously with the rotation of the gear 8. At this time, the transmission rod 11 is stationary, and the drive rod 4 drives the camera to rotate, so that the shooting end of the camera faces the bottom surface of the tool 3, and the status is shot.

[0059] Embodiment five:

[0060] Furthermore, in order to clearly capture the wear state of the side and bottom surfaces of the tool 3, the water spraying unit 14 and the air blowing unit 15 provided on the supporting mechanism are activated before capturing the image. The water spraying unit 14 is a water spraying ball nozzle, and the air blowing unit 15 is a air blowing ball nozzle. Figure 6 and Figure 7 As shown, the water spray ball nozzle is connected to the third pneumatic joint 16 arranged on the supporting mechanism, and the air blowing ball nozzle is connected to the fourth pneumatic joint 17 arranged on the supporting mechanism (the water inlet pipeline of the water spray ball nozzle and the air inlet pipeline of the air blowing ball nozzle are not shown in the figure). Start the water spray ball nozzle and the air blowing ball nozzle and aim them at the tool to clean the iron cuttings or dust on the tool.

[0061] like Figure 4 As shown, the mirror surface 24 of the camera is arranged in the concave structure, the blowing ring 18 is an annular tube, and the outer wall of the blowing ring 18 is fixed on the inner wall of the concave structure, as shown in FIG. Fig. 9 As shown, the outer wall of the blowing ring 18 is provided with a plurality of air outlet holes 25 and an air inlet hole 26, and the air outlet holes 25 are inclined toward the mirror surface 24 so that the gas coming out of the air outlet holes 25 can blow away the dust and iron filings on the mirror surface 24; Fig.10As shown, the gas enters the first air inlet channel 27 and the second air inlet channel 28 which are interconnected and arranged in the supporting mechanism through the second pneumatic joint 19 arranged on the supporting mechanism, and enters the third air inlet channel 29 in the driving rod 4. The second air inlet channel 28 is connected with the third air inlet channel 29 through a first through hole 30 arranged on the third air inlet channel 29. The gas is discharged from the third air inlet channel 29 to the air inlet hole 26 of the blowing ring 18 and enters the blowing ring 18. Under a large amount of gas pressure, the injected gas is discharged from the air outlet hole on the blowing ring 18, blows onto the camera mirror, and cleans the iron filings or dust on it.

[0062] In order to prevent the gas entering the third air inlet pipe 29 from leaking, a sealing ring 31 is also included;

[0063] The carrying mechanism is provided with a first air inlet channel 27 and a second air inlet channel 28; the driving rod 4 is provided with a third air inlet channel 29, and a first through hole 30 is provided on the side wall of the third air inlet channel 29; a shell 32 is provided on the outer side of the driving rod 4, and a second through hole 30' is provided on the side wall of the shell 32, and the first through hole 30 is connected to the second through hole 30'; the shooting mechanism is provided with a fourth air inlet channel 29';

[0064] One end of the first air inlet channel 27 is communicated with the second pneumatic joint 19 arranged on the side wall of the bearing mechanism, and the other end of the first air inlet channel 27 is communicated with one end of the second air inlet channel 28, and the other end of the second air inlet channel 28 is communicated with the second through hole 30'; one end of the third air inlet channel 29 is sealed, and the other end is communicated with one end of the fourth air inlet channel 29', and the other end of the fourth air inlet channel 29' is communicated with the air inlet hole 26 arranged on the side wall of the blowing ring 18; the sealing ring 31 is sleeved on the housing 32 and arranged on both sides of the second through hole 30';

[0065] After the gas enters the first air inlet channel 27 and the second air inlet channel 28 in sequence from the second pneumatic joint 19, it enters the third air inlet channel 29 and the fourth air inlet channel 29' through the connected first through hole 30 and the second through hole 30', and then enters the blowing ring through the air inlet hole 26 on the blowing ring 18 to blow air to the mirror surface.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A CNC machine tool image acquisition device, characterized in that: include: A photographing mechanism (1) for photographing the state of a tool (3); A driving mechanism for driving the photographing mechanism (1) to move; A supporting mechanism (20) for supporting the driving mechanism; The driving mechanism comprises: a power unit (2) and a driving rod (4); the power unit (2) is fixed on the supporting mechanism (20); an output end of the power unit (2) is connected to one end of the driving rod (4); the other end of the driving rod (4) is connected to the shooting mechanism (1); the power unit (2) drives the driving rod (4) to move, and the driving rod (4) drives the shooting mechanism (1) to move; The carrying mechanism (20) further comprises: a containing box (6) for containing the photographing mechanism; the containing box (6) is fixed to one end of the carrying mechanism (20); the driving rod (4) moves in the carrying mechanism (20) along the axial direction of the driving rod (4) and drives the photographing mechanism (1) to enter and exit the containing box (6); The driving mechanism further comprises: a rotating mechanism for driving the driving rod (4) to rotate around its axis, the rotating mechanism being arranged in the containing box (6), the rotating mechanism driving the driving rod (4) to rotate and thereby driving the photographing mechanism (1) to switch between facing the side of the tool (3) and facing the bottom of the tool (3); It also comprises a connecting plate (5), one end of which is connected to the output end of the power unit (2), the other end of which is vertically fixed to one end of a connecting shaft (12), the connecting shaft (12) passing through the bottom of the bearing mechanism (20), the other end of which is fixedly connected to a transmission rod (11), the connecting shaft (12) passing through the bottom surface of the bearing mechanism (20) for movement, and one end of the transmission rod (11) being rotationally connected to one end of the driving rod (4) away from the shooting mechanism (1); the power unit (2) drives the driving rod (4) to move linearly through the connecting plate (5), the connecting shaft (12) and the transmission rod (11) and ensures that the driving rod (4) can be driven to rotate by the rotating mechanism.

2. The device according to claim 1, characterized in that The containing box (6) and the supporting mechanism (20) are in an "L"-shaped structure, the power unit (2) is a rodless cylinder, and the rodless cylinder is arranged in a space formed by the supporting mechanism (20) and the containing box (6), so that the device is in a rectangular parallelepiped structure.

3. The device according to claim 2, characterized in that The rotating mechanism comprises: a rack (7) perpendicular to the driving rod (4) and arranged in a first channel (9) at the bottom of the containing box (6); first pneumatic joints (10) are connected to both ends of the first channel (9); a gear (8) sleeved on the driving rod (4) and meshing with the rack (7); The gas entering from the first pneumatic joint (10) drives the rack (7) to move in the first channel (9), and the movement direction is perpendicular to the drive rod (4); the rack (7) drives the gear (8) to rotate, and the gear (8) drives the drive rod (4) to rotate.

4. The device according to claim 1, characterized in that Also includes: A water spraying portion (14) and an air blowing portion (15) for cleaning the cutting tool; The water spraying part (14) and the air blowing part (15) are fixed on the supporting mechanism; The water spraying part (14) is in communication with a third pneumatic joint (16), and the air blowing part (15) is in communication with a fourth pneumatic joint (17).

5. The device according to claim 1, characterized in that Also includes: An air blowing ring (18) disposed at the shooting end of the shooting mechanism (1); The air blowing ring (18) is in communication with the second pneumatic connector (19).

6. The device according to claim 1, characterized in that The connecting shaft (12) is vertically fixedly connected to the transmission rod (11).

7. The device according to claim 5, characterized in that Also includes: Sealing ring (31); A first air inlet channel (27) and a second air inlet channel (28) are provided in the bearing mechanism; a third air inlet channel (29) is provided in the driving rod (4), a first through hole (30) is provided on the side wall of the third air inlet channel (29); a shell (32) is provided on the outer side of the driving rod (4), a second through hole (30') is provided on the side wall of the shell (32), the first through hole (30) is in communication with the second through hole (30'), and a fourth air inlet channel (29') is provided in the shooting mechanism; One end of the first air inlet channel (27) is communicated with the second pneumatic joint (19) arranged on the side wall of the supporting mechanism, and the other end of the first air inlet channel (27) is communicated with one end of the second air inlet channel (28), and the other end of the second air inlet channel (28) is communicated with the second through hole (30'); one end of the third air inlet channel (29) is sealed, and the other end is communicated with one end of the fourth air inlet channel (29'), and the other end of the fourth air inlet channel (29') is communicated with the air inlet hole (26) arranged on the side wall of the blowing ring (18); the sealing ring (31) is sleeved on the outer shell (32) and is arranged on both sides of the second through hole (30').

8. The device according to claim 1, characterized in that The photographing mechanism (1) is provided with a baffle (33) which engages with the containing box (6).

Images