Supporting device for drilling of ball thin-wall nozzle head

Abstract

The invention discloses a supporting device for drilling of a ball thin-wall nozzle head. A fixing base, a bottom plate, a first worm and gear set, a fixing sleeve frame, a second worm and gear set, a fixing sleeve plate, a locking block and the nozzle head serve as a main body. The bottom plate is installed on the bottom face of the annular fixing base, the first worm and gear set is installed in the fixing base, and a first adjusting button is arranged on the first worm and gear set. The second worm and gear set is installed on the fixing sleeve frame and provided with a driving rotating shaft and a driven rotating shaft. Fixing sleeve plates are arranged on the two sides of the fixing sleeve frame, and arc section supporting frames are arranged between the fixing sleeve plates and the positioning columns. The drilling device has the beneficial effects that the arc-section supporting frame and the positioning column are driven to be locked in a matched mode while self-locking is conducted through the second worm and gear set, and the requirement for position supporting during drilling can be met by adjusting the angle of the arc-section supporting frame in a stepless mode; when the supporting pads abut against the inner wall of the spherical workpiece, namely, the supporting pads are located on the two sides of the punching position, and the supporting strength is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thin-walled parts processing auxiliary devices, in particular to a supporting device for drilling holes in a spherical thin-walled nozzle head. Background Art

[0002] In actual production, thin-walled spherical parts require highly reliable internal support clamping during the drilling process. Commonly used internal support clamping methods include inner tube overall rigid support and filled inner support. In the inner tube overall rigid support, the outer surface of the inner tube (i.e. the supporting surface) and the inner surface of the part (i.e. the surface to be supported) need to be designed to be consistent.

[0003] However, the current support device that is supported by the overall rigidity of the inner tube has poor flexibility in design, and the inner support position of the thin-walled ball parts is fixed and cannot be adjusted, resulting in the inability to reliably support the changed drilling position when the drilling position is changed. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a support device for drilling holes in a spherical thin-wall nozzle head.

[0005] The supporting device for drilling a thin-walled nozzle head for a ball described in the present invention is mainly composed of a fixed seat, a base plate, a No. 1 worm gear group, a fixed sleeve, a No. 2 worm gear group, a fixed sleeve, a locking block and a nozzle head; the base plate is installed on the bottom surface of the annular fixed seat, the No. 1 worm gear group is installed in the fixed seat, and the No. 1 worm gear group is provided with a No. 1 adjusting button, which is located on the side of the fixed seat, and the No. 1 worm gear group is driven to move by rotating the No. 1 adjusting button; the locking block is provided with a locking column and a locking plate, the axis of the locking column is fixedly connected to the locking block at a 90° angle, and the locking plate is sleeved on the lock; the bottom of the fixed sleeve extends to the surface of the base plate, and The fixed sleeve is fixedly connected to the base plate; the No. 2 worm gear group is installed on the fixed sleeve, and the No. 2 worm gear group is provided with a driving shaft and a driven shaft, and the axes of the driving shaft and the driven shaft are vertical; the driven shaft is provided with a movable plate and a positioning column, and the driven shaft, the movable plate and the positioning column are all fixedly connected, and the driven shaft and the axis of the positioning column form an angle of 30°-60°; fixed sleeve plates are provided on both sides of the fixed sleeve, and an arc support frame is provided between the fixed sleeve plate and the positioning column, the positioning column is inserted in the middle of the arc support frame, and both ends of the arc support frame are inserted on the fixed sleeve plate and can rotate; support pads are provided on the arc support frame.

[0006] Preferably, a limit pin and a fixed pin are provided in the fixed seat, and a movable pin and a movable groove are provided on the No. 1 worm gear group, and the crescent-shaped movable groove is sleeved on the limit pin, so that the movement trajectory of the No. 1 worm gear group is limited by the cooperation between the movable groove and the limit pin.

[0007] Preferably, a hinge rod is provided between the locking block and the No. 1 worm gear group, and movable pins are provided at both ends of the hinge rod, that is, the two ends of the hinge rod are respectively connected to the locking block and the No. 1 worm gear group through movable pins, so that the movement between the locking block and the No. 1 worm gear group is transmitted through the hinge rod.

[0008] Preferably, the locking blocks are four and are evenly arranged in a circular ring in the fixing seat, and the cross section of the locking plate is V-shaped, so as to facilitate clamping on the inner surface of the workpiece.

[0009] Preferably, a No. 2 adjusting button is provided on the active rotating shaft, and the No. 2 adjusting button passes through the bottom of the base plate. The No. 2 worm gear set is driven to move by rotating the No. 2 adjusting button to rotate the active rotating shaft.

[0010] Preferably, the first worm gear set and the second worm gear set can be self-locking respectively.

[0011] Preferably, the arc segment support frame and the support pad are both crescent-shaped, so that the arc segment support frame and the support pad can be pressed against the inner wall of the spherical workpiece.

[0012] Preferably, the support pad is made of rubber material, that is, the support pad is in surface contact when pressed against the inner wall of the spherical workpiece.

[0013] Preferably, the arc support frame and the support pad are both provided with an arc support cavity, that is, when the support pad is pressed against the inner wall of the spherical workpiece, the punching position is located in the arc support cavity, that is, the support pad is located on both sides of the punching position, thereby improving the support strength.

[0014] The beneficial effects of the present invention are:

[0015] 1. While the No. 2 worm gear group is self-locking, it drives the arc segment support frame to lock with the positioning column, thereby fixing the angle of the arc segment support frame at this moment. The design is ingenious, that is, the angle of the arc segment support frame can be infinitely adjusted to meet the demand for position support during drilling.

[0016] 2. The arc segment support frame and the support pad are both crescent-shaped and pressed against the inner wall of the spherical workpiece, that is, the support pad is in surface contact when pressed against the inner wall of the spherical workpiece, thereby improving the support strength.

[0017] 3. When the support pad is pressed against the inner wall of the spherical workpiece, the punching position is located in the arc segment support cavity, that is, the support pad is located on both sides of the punching position, which also improves the support strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a support device for drilling holes in a spherical thin-wall nozzle head.

[0019] Figure 2 This is an axonometric view of a support device for drilling holes in a spherical thin-walled nozzle head.

[0020] Figure 3 The present invention is a three-dimensional diagram of a spherical thin-wall nozzle head after being cut away in a supporting device for drilling a hole in a spherical thin-wall nozzle head.

[0021] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0022] Figure 5 for Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 6 The present invention is a stereoscopic view of a spherical thin-wall nozzle head after a support device for drilling a hole in the spherical thin-wall nozzle head is hidden.

[0024] Figure 7 for Figure 6 A partial enlarged view of point C in the middle.

[0025] Figure 8 A three-dimensional view of a support device for drilling a hole in a spherical thin-wall nozzle head, with the spherical thin-wall nozzle head and a base plate hidden.

[0026] In the figure: 1, fixed seat, 12, bottom plate; 2, worm gear group No. 1, 21, adjusting button No. 1; 3, fixed sleeve, 31, adjusting button No. 2; 4, worm gear group No. 2, 41, driven shaft, 42, movable plate, 43, positioning column, 44, active shaft; 5, arc segment support frame, 51, arc segment support cavity, 52, support pad; 6, fixed sleeve; 7, locking block, 71, movable pin, 72, fixed pin, 73, locking column, 74, locking plate; 8, limit pin; 9, movable groove; 101, nozzle head; 102, hinge rod. DETAILED DESCRIPTION

[0027] In order to make the technical solution of the present invention more clear, the present invention is further described below in conjunction with the specific embodiments of the drawings; it should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] like Figure 1-8As shown, a support device for drilling a ball thin-walled nozzle head described in the present invention is composed of a fixed seat 1, a base plate 12, a No. 1 worm gear group 2, a fixed sleeve frame 3, a No. 2 worm gear group 4, a fixed sleeve plate 6, a locking block 7 and a nozzle head 101 as the main body; the base plate 12 is installed on the bottom surface of the annular fixed seat 1, the No. 1 worm gear group 2 is installed in the fixed seat 1, and the No. 1 worm gear group 2 is provided with a No. 1 adjusting button 21, and the No. 1 adjusting button 21 is located on the side of the fixed seat 1, and the No. 1 worm gear group 2 is driven to move by rotating the No. 1 adjusting button 21; the locking block 7 is provided with a locking column 73 and a locking plate 74, the axis of the locking column 73 is fixedly connected to the locking block 7 at a 90° angle, and the locking plate 74 is sleeved on the locking; the bottom of the fixed sleeve frame 3 extends to the surface of the base plate 12, and the fixed The sleeve 3 is fixedly connected to the base plate 12; the No. 2 worm gear group 4 is installed on the fixed sleeve 3, and the No. 2 worm gear group 4 is provided with a driving shaft 44 and a driven shaft 41, and the axes of the driving shaft 44 and the driven shaft 41 are vertical; the driven shaft 41 is provided with a movable plate 42 and a positioning column 43, and the driven shaft 41, the movable plate 42 and the positioning column 43 are all fixedly connected, and the axis of the driven shaft 41 and the positioning column 43 are at an angle of 30°-60°; fixed sleeve plates 6 are provided on both sides of the fixed sleeve 3, and an arc support frame 5 is provided between the fixed sleeve plate 6 and the positioning column 43, the positioning column 43 is inserted in the middle of the arc support frame 5, and the two ends of the arc support frame 5 are inserted in the fixed sleeve plate 6 and can rotate; the arc support frame 5 is provided with a support pad 52.

[0029] In this embodiment, a limit pin 8 and a fixed pin 72 are provided in the fixed seat 1, and a movable pin 71 and a movable groove 9 are provided on the No. 1 worm gear group 2. The crescent-shaped movable groove 9 is sleeved on the limit pin 8, so that the movement trajectory of the No. 1 worm gear group 2 is limited by the cooperation between the movable groove 9 and the limit pin 8.

[0030] In this embodiment, a hinge rod 102 is provided between the locking block 7 and the first worm gear group 2, and movable pins 71 are respectively provided at both ends of the hinge rod 102, that is, the two ends of the hinge rod 102 are respectively connected to the locking block 7 and the first worm gear group 2 through the movable pins 71, so that the movement between the locking block 7 and the first worm gear group 2 is transmitted through the hinge rod 102.

[0031] In this embodiment, the locking blocks 7 are four and are evenly arranged in a circular ring in the fixing seat 1, and the cross section of the locking plate 74 is V-shaped, so as to be easily clamped on the inner surface of the workpiece.

[0032] In this embodiment, a second adjusting button 31 is disposed on the active rotating shaft 44 . The second adjusting button 31 passes through the bottom of the bottom plate 12 . The active rotating shaft 44 is rotated by rotating the second adjusting button 31 to drive the second worm gear set 4 to move.

[0033] In this embodiment, the first worm gear set 2 and the second worm gear set 4 can be self-locking respectively.

[0034] In this embodiment, the arc segment support frame 5 and the support pad 52 are both crescent-shaped, so that the arc segment support frame 5 and the support pad 52 can be pressed against the inner wall of the spherical workpiece.

[0035] In this embodiment, the support pad 52 is made of rubber material, that is, the support pad 52 is in surface contact when pressed against the inner wall of the spherical workpiece.

[0036] In this embodiment, an arc support cavity 51 is provided in the arc support frame 5 and the support pad 52, that is, when the support pad 52 is pressed against the inner wall of the spherical workpiece, the punching position is located in the arc support cavity 51, that is, the support pad 52 is located on both sides of the punching position, thereby improving the support strength.

[0037] When using

[0038] First, it is necessary to rotate the No. 2 adjusting button 31. The No. 2 adjusting button 31 drives the No. 2 worm gear group 4 to move through the active shaft 44. The No. 2 worm gear group 4 now drives the driven shaft 41 to rotate, and then the driven shaft 41 drives the positioning column 43 to rotate through the movable plate 42. Further, the positioning column 43 rotates in the arc segment support frame 5, so that the two ends of the arc segment support frame 5 rotate in the fixed sleeve 6, that is, to change the angle of the arc segment support frame 5, so that the arc segment support cavity 51 and the punching drill bit meet the drilling requirements, and then stop rotating the No. 2 adjusting button 31. At this moment, the No. 2 worm gear group 4 is self-locking, and at the same time, the arc segment support frame 5 and the positioning column 43 are locked together, thereby fixing the angle of the arc segment support frame 5 at this moment.

[0039] Next, place the nozzle head 101 workpiece on the locking block 7. At this moment, rotate the No. 1 adjustment button 21 to drive the No. 1 worm gear group 2 to move. Next, the movement between the No. 1 worm gear group 2 is transmitted to the locking block 7 through the hinge rod 102. Further, the locking block 7 drives the locking plate 74 to press against the inner wall of the nozzle head 101 workpiece, thereby fixing the workpiece.

[0040] Furthermore, when the support pad 52 is pressed against the inner wall of the spherical workpiece, the drilling position is located in the arc support cavity 51, that is, the support pad 52 is located on both sides of the drilling position, thereby improving the support strength, which is convenient for drilling the spherical thin-wall nozzle head 101.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A support device for drilling a ball thin-wall nozzle head, characterized by: The main body is composed of a fixed seat, a base plate, a No. 1 worm gear group, a fixed sleeve frame, a No. 2 worm gear group, a fixed sleeve plate, a locking block and a nozzle head; the base plate is installed on the bottom surface of the annular fixed seat, the No. 1 worm gear group is installed in the fixed seat, and the No. 1 worm gear group is provided with a No. 1 adjusting button, which is located on the side of the fixed seat, and the No. 1 worm gear group is driven to move by rotating the No. 1 adjusting button; the locking block is provided with a locking column and a locking plate, the axis of the locking column is fixedly connected to the locking block at an angle of 90°, and the locking plate is sleeved on the lock; the bottom of the fixed sleeve frame extends to the surface of the base plate, and the fixed sleeve frame is fixedly connected to the base plate; The No. 2 worm gear group is installed on the fixed sleeve frame, and the No. 2 worm gear group is provided with a driving shaft and a driven shaft, and the axes of the driving shaft and the driven shaft are vertical; the driven shaft is provided with a movable plate and a positioning column, and the driven shaft, the movable plate and the positioning column are all fixedly connected, and the driven shaft and the axis of the positioning column form an angle of 30°-60°; fixed sleeve plates are provided on both sides of the fixed sleeve frame, and an arc support frame is provided between the fixed sleeve plate and the positioning column, the positioning column is inserted in the middle of the arc support frame, and both ends of the arc support frame are inserted on the fixed sleeve plate and can rotate; the arc support frame is provided with a support pad.

2. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: A limit pin and a fixed pin are provided in the fixed seat, and a movable pin and a movable groove are provided on the No. 1 worm gear group. The crescent-shaped movable groove is sleeved on the limit pin, so that the movement trajectory of the No. 1 worm gear group is limited by the cooperation between the movable groove and the limit pin.

3. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: A hinge rod is provided between the locking block and the No. 1 worm gear group, and movable pins are provided at both ends of the hinge rod, that is, the two ends of the hinge rod are respectively connected to the locking block and the No. 1 worm gear group through the movable pins, so that the movement between the locking block and the No. 1 worm gear group is transmitted through the hinge rod.

4. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The locking blocks are four and are evenly arranged in a circular ring in the fixing seat, and the cross section of the locking plate is V-shaped so that it can be stuck on the inner surface of the workpiece.

5. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The active rotating shaft is provided with a No. 2 adjusting button which passes through the bottom of the base plate. The active rotating shaft is rotated by rotating the No. 2 adjusting button to drive the No. 2 worm gear set to move.

6. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The first worm gear set and the second worm gear set can be self-locking respectively.

7. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The arc segment support frame and the support pad are both crescent-shaped, so that the arc segment support frame and the support pad can be pressed against the inner wall of the spherical workpiece.

8. The support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The support pad is made of rubber material, that is, the support pad is in surface contact when pressed against the inner wall of the spherical workpiece.

9. A support device for drilling a ball thin-wall nozzle head according to claim 1, characterized in that: The arc support frame and the support pad are both provided with an arc support cavity, that is, when the support pad is pressed against the inner wall of the spherical workpiece, the punching position is located in the arc support cavity, that is, the support pad is located on both sides of the punching position.

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