A double turntable device with adjustable spacing for CT detection

Abstract

The present invention relates to the field of industrial CT detection equipment, and in particular to a spacing-adjustable double-turntable device for CT detection. Through two turntables with adjustable spacing, workpieces can be scanned comparatively or two groups of different workpieces can be scanned simultaneously, thereby improving the use efficiency of the detector. The device comprises a supporting base plate, a transmission spindle and two turntables arranged at intervals; the transmission spindle is rotatably arranged on the supporting base plate; a rotating shaft is concentrically fixed to the turntable; the rotating shaft is dynamically connected to the transmission spindle and can rotate under the drive of the transmission spindle; a spacing adjustment mechanism is arranged between the turntables; the spacing adjustment mechanism can adjust the distance between the two turntables.

Description

Technical Field

[0001] The invention relates to the field of industrial CT detection equipment, and in particular to a double-turntable device with adjustable spacing for CT detection. Background Art

[0002] Existing CT detection equipment generally only has one turntable, and can only detect one workpiece at a time. In order to ensure the adaptability of the detection equipment, the sizes of the turntable and the detector are designed according to the size of the largest workpiece during design. When detecting small workpieces, the detector has the highest detection efficiency. For workpieces of the same specification, only one can be detected at a time, and simultaneous comparison detection cannot be performed. And when performing simultaneous comparison detection on large workpieces, when the spacing between the turntables cannot be adjusted, the detector cannot completely scan the two large workpieces. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a dual-turntable device with adjustable spacing for CT detection. Through two turntables with adjustable spacing, workpieces can be scanned in comparison or two groups of different workpieces can be scanned simultaneously, thereby improving the use efficiency of the detector.

[0004] According to an embodiment of the present invention, a spacing-adjustable double-turntable device for CT detection includes a supporting base plate, a transmission main shaft, and two turntables arranged at intervals; the transmission main shaft is rotatably arranged on the supporting base plate; a rotating shaft is concentrically fixed to the turntable; the rotating shaft is dynamically connected to the transmission main shaft and can rotate under the drive of the transmission main shaft; a spacing adjustment mechanism is arranged between the turntables; the spacing adjustment mechanism can adjust the distance between the two turntables.

[0005] Preferably, a driving gear is fixed on the transmission main shaft; a driven gear is arranged on the rotating shaft; and the driving gear is meshed with the driven gear.

[0006] Preferably, the spacing adjustment mechanism includes an arc guide rail and a sliding mechanism; the arc guide rail is arranged on the surface of the supporting base plate and is concentric with the transmission main shaft; the rotating shaft is rotatably arranged on the sliding mechanism; the sliding mechanism is slidably arranged on the arc guide rail, and the distance between the turntables is adjusted by adjusting the position of the sliding mechanism on the arc guide rail.

[0007] Preferably, the spacing adjustment mechanism also includes: an intermediate connecting plate, a spacing nut and a spacing screw; the spacing nut is threadedly connected to the spacing screw; one end of the intermediate connecting plate is fixed to the spacing nut, and the other end is hinged to the rotating shaft; when the spacing screw is turned, the two spacing nuts can be moved closer / away, thereby driving the sliding mechanism and the turntable to move closer / away along the direction specified by the arc guide rail.

[0008] Preferably, the sliding mechanism includes: a slider, a connecting bridge plate and a pad; the slider is slidably arranged on the arc guide rail; one end of the connecting bridge plate is fixed to the slider; the pad is fixed to the free end of the connecting bridge plate; the rotating shaft is rotatably connected to the pad via a bearing.

[0009] Preferably, a limit rod is provided on the sliding mechanism; and the rotating shaft is rotatably connected to the limit rod.

[0010] Preferably, a guide plate is further provided on the supporting base plate; the guide plate is rotatably connected to the pitch-adjusting screw.

[0011] Preferably, a pitch adjuster is installed on the pitch adjusting screw.

[0012] Preferably, a fixing plate is installed on the supporting base plate; and the end of the transmission main shaft is rotatably connected to the fixing plate.

[0013] Preferably, a transmission plate is provided at one end of the transmission main shaft.

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

[0015] The two turntables are synchronously driven by a transmission main shaft and rotate in the same direction. The equipment has high precision, and the distance between the two turntables is adjusted by a distance adjusting bolt to ensure that the displacement between the two turntables is the same; when adjusting the horizontal distance between the two turntables, the distance between the two turntables and the detector can be adjusted at the same time. For single-sided scanning (if the scanning range of the detector is certain), it is equivalent to adjusting the phase distance and object distance at the same time. The benefits are: ① The front and rear positions and left and right positions in the horizontal direction can be adjusted at the same time, which is convenient for finding the best scanning position of the workpiece to be measured within a certain range; ② For parts with a certain height, when the defect position is higher, it can be scanned completely by moving away from the detector; ③ A distance adjusting screw is used as the drive to adjust the horizontal distance and the front and rear position at the same time, which has a simplified structure and convenient operation; ④ The entire transmission structure relies on pure mechanical transmission, without circuits, and can meet the use of various explosion-proof occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a double-turntable device with adjustable spacing for CT detection provided by the present invention;

[0017] Figure 2 A schematic diagram of the structure of a double-turntable device with adjustable spacing for CT detection provided by the present invention from another angle;

[0018] Figure 3 A top view of a double-turntable device with adjustable spacing for CT detection provided by the present invention;

[0019] Figure 4A schematic diagram of the structure of a sliding mechanism of a double-turntable device with adjustable spacing for CT detection provided by the present invention;

[0020] Figure 5 A schematic diagram of the bottom structure of a double-turntable device with adjustable spacing for CT detection provided by the present invention;

[0021] Figure 6 The present invention is a schematic diagram of the coordination between a double-turntable device with adjustable spacing for CT detection and a numerically controlled turntable.

[0022] In the above drawings:

[0023] 1. Supporting bottom plate; 11. Fixing plate;

[0024] 21. Transmission main shaft; 22. Driving gear; 23. Transmission plate;

[0025] 31. Rotating shaft; 32. Driven gear; 33. Turntable;

[0026] 4. Arc guide rail; 41. Guide plate;

[0027] 51. middle connecting plate; 52. pitch adjusting screw; 521. pitch adjusting device; 53. pitch adjusting nut;

[0028] 61. Slider; 62. Connecting bridge plate; 63. Pad; 64. Limit rod;

[0029] 7. CNC turntable. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0031] like Figure 1-6 As shown: a spacing-adjustable double-turntable device for CT detection, comprising a supporting base plate 1, a transmission spindle 21 and two spaced turntables 33; the turntable 33 is used to place a workpiece to be tested; the supporting base plate 1 is fixed to the CNC turntable 7 of the CT device through a bracket; the transmission spindle 21 is rotatably arranged on the supporting base plate 1, and the transmission spindle 21 is power-connected to the CNC turntable 7 and driven to rotate by the CNC turntable 7; a rotating shaft 31 is concentrically fixed to the lower bottom surface of the turntable 33; the rotating shaft 31 is power-connected to the transmission spindle 21 and can rotate driven by the transmission spindle 21, thereby driving the turntable 33 to rotate; a spacing adjustment mechanism is arranged between the turntables 33; the spacing adjustment mechanism can adjust the distance between the two turntables 33.

[0032] A driving gear 22 is fixed on the transmission main shaft 21 ; a driven gear 32 is provided on the rotating shaft 31 ; the driving gear 22 is meshed with the driven gear 32 , and the rotating shaft 31 and the transmission main shaft 21 transmit power through gears.

[0033] The spacing adjustment mechanism includes an arc guide rail 4 and a sliding mechanism; the arc guide rail 4 is arranged on the upper surface of the supporting base plate 1 through a circular stand, and the arc guide rail 4 is provided with two sections, which are symmetrical about the transmission main shaft 21 and concentric with the transmission main shaft 21 and the driving gear 22; the rotating shaft 31 is rotatably arranged on the sliding mechanism; the sliding mechanism is slidably arranged on the arc guide rail 4, and the position of the sliding mechanism on the arc guide rail 4 is adjusted, and then the distance between the turntables 33 is adjusted. The present invention can not only detect a single workpiece, but also perform comparative detection on the same kind of workpieces, and can also perform comparative detection on different kinds of workpieces, especially for small workpieces, which can improve the use efficiency of the detector.

[0034] The spacing adjustment mechanism also includes: an intermediate connecting plate 51, a spacing nut 53 and a spacing screw 52; the spacing screw 52 is engraved with a double thread and is threadedly connected to the spacing screw 52; one end of the intermediate connecting plate 51 is fixed to the spacing nut 53, and the other end is provided with a round hole, a bearing is provided in the round hole, and the rotating shaft 31 is inserted into the bearing and is hinged with the intermediate connecting plate 51; when the spacing screw 52 is turned, the two spacing nuts 53 can be moved closer / away, and then the sliding mechanism and the rotating disk 33 can be driven to move closer / away along the direction specified by the circular arc guide rail 4. The purpose of setting the circular arc guide rail 4 in the present invention is that when adjusting the horizontal spacing between the two rotating disks 33, The distance between the two turntables 33 and the detector can be adjusted at the same time. For single-side scanning, (if the scanning range of the detector is certain) it is equivalent to adjusting the phase distance and the object distance at the same time. The advantages brought by this are: ① The front and rear positions and the left and right positions in the horizontal direction can be adjusted at the same time, which is convenient for finding the best scanning position of the workpiece to be measured within a certain range; ② For parts with a certain height, when the defect position is higher, it can be scanned completely by moving away from the detector; ③ A distance adjustment screw 52 is used as a drive to adjust the horizontal distance and the front and rear position at the same time, which simplifies the structure and is convenient to operate; ④ The entire transmission structure relies on pure mechanical transmission, without circuits, and meets the use of various explosion-proof occasions.

[0035] The sliding mechanism includes: a slider 61, a connecting bridge plate 62 and a pad 63; the slider 61 is slidably set on the arc guide rail 4; one end of the connecting bridge plate 62 is fixed to the slider 61; the pad 63 is fixed to the free end of the connecting bridge plate 62; the rotating shaft 31 is rotatably connected to the pad 63 through a bearing. In this embodiment, the connecting bridge plate 62 functions to connect the slide and the rotating shaft 31, and the connecting bridge plate 62 is fixed to the slide by bolts. The purpose of setting the connecting plate is that when the tooth ratio of the driven gear 32 changes, the driven gear 32 with different tooth ratios can be adapted by adjusting the fixed angle between the connecting bridge plate 62 and the slider 61 and the length of the intermediate connecting plate 51.

[0036] A limiting rod 64 is provided on the sliding mechanism. In the present embodiment, the limiting rod 64 is specifically provided on the upper surface of the connecting bridge plate 62. The rotating shaft 31 is rotatably connected with the limiting rod 64, specifically: a limiting hole is provided on the limiting rod 64, and a bearing is provided in the limiting hole; and the rotating shaft 31 passes through the bearing and is rotatably connected with the limiting rod 64.

[0037] The support base plate 1 is also provided with a guide plate 41. In the present embodiment, the guide plate 41 is provided on a circular stand and is perpendicular to the support base plate 1. A through hole is provided on the guide plate 41, and a bearing is installed in the through hole. The guide plate 41 is inserted into the bearing and is rotatably connected to the pitch adjusting screw 52, ​​and limits the pitch adjusting screw 52.

[0038] A pitch adjuster 521 is installed on the pitch adjusting screw 52. In this embodiment, a mounting frame is provided at the edge of the supporting base plate 1, and the pitch adjuster 521 is installed on the mounting frame. The pitch adjusting screw 52 passes through the pitch adjuster 521 and the mounting frame, and is threadedly connected with the pitch adjusting nut 53. The distance between the two turntables 33 can be adjusted more accurately through the pitch adjuster 521.

[0039] A fixing plate 11 is installed on the supporting base plate 1; the transmission main shaft 21 passes through the upper end of the supporting base plate 1 and is rotatably connected to the fixing plate 11. Specifically, a bearing is installed on the fixing plate 11, and the upper end of the transmission main shaft 21 is inserted into the bearing, which is used to limit the transmission main shaft 21 in the horizontal direction to ensure its rotation stability.

[0040] A transmission plate 23 is disposed at the lower end of the transmission main shaft 21 , and a claw member is disposed on the transmission plate 23 . The claw member can be inserted into the T-slot of the numerical control turntable 7 for transmission, thereby providing power for the transmission main shaft 21 .

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A double-turntable device with adjustable spacing for CT detection, characterized in that: It comprises a supporting base plate, a transmission main shaft and two rotating discs arranged at intervals; the transmission main shaft is rotatably arranged on the supporting base plate; a rotating shaft is concentrically fixed to the rotating disc; the rotating shaft is dynamically connected to the transmission main shaft and can rotate under the drive of the transmission main shaft; a spacing adjustment mechanism is arranged between the rotating discs; the spacing adjustment mechanism can adjust the distance between the two rotating discs; the spacing adjustment mechanism comprises an arc guide rail and a sliding mechanism; the arc guide rail is arranged on the surface of the supporting base plate and is concentric with the transmission main shaft; the rotating shaft is rotatably arranged on the sliding mechanism; the sliding mechanism is slidably arranged on the arc guide rail, and the distance between the rotating discs is adjusted by adjusting the position of the sliding mechanism on the arc guide rail; The spacing adjustment mechanism also includes: an intermediate connecting plate, a spacing nut and a spacing screw; the spacing nut is threadedly connected to the spacing screw; one end of the intermediate connecting plate is fixed to the spacing nut, and the other end is hinged to the rotating shaft; when the spacing screw is turned, the two spacing nuts can be moved closer / away, thereby driving the sliding mechanism and the turntable to move closer / away along the direction specified by the arc guide rail.

2. A double-turntable device with adjustable spacing for CT detection as claimed in claim 1, characterized in that: A driving gear is fixed on the transmission main shaft; a driven gear is arranged on the rotating shaft; and the driving gear is meshed with the driven gear.

3. The double-turntable device with adjustable spacing for CT detection according to claim 2, characterized in that: The sliding mechanism includes: a slider, a connecting bridge plate and a pad; the slider is slidably arranged on the arc guide rail; one end of the connecting bridge plate is fixed to the slider; the pad is fixed to the free end of the connecting bridge plate; the rotating shaft is rotatably connected to the pad via a bearing.

4. The double-turntable device with adjustable spacing for CT detection according to claim 2, characterized in that: A limiting rod is arranged on the sliding mechanism; and the rotating shaft is rotatably connected with the limiting rod.

5. The double-turntable device with adjustable spacing for CT detection according to claim 2, characterized in that: A guide plate is also provided on the supporting bottom plate; the guide plate is rotatably connected to the pitch-adjusting screw rod.

6. The double-turntable device with adjustable spacing for CT detection according to claim 1, characterized in that: A pitch adjuster is installed on the pitch adjusting screw.

7. The double-turntable device with adjustable spacing for CT detection according to claim 1, characterized in that: A fixing plate is installed on the supporting bottom plate; the end of the transmission main shaft is rotatably connected to the fixing plate.

8. The double-turntable device with adjustable spacing for CT detection according to claim 1, characterized in that: A transmission plate is arranged at one end of the transmission main shaft.

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