Automatic turnover mechanism for ultrasonic detection

Abstract

The utility model relates to the technical field of radiator detection, and particularly discloses an automatic turnover mechanism for ultrasonic detection, which comprises a water immersion tank for submerging a workpiece to be detected, and further comprises a horizontally arranged first guide rail, the first guide rail is mounted on the bottom surface of the water immersion tank, and a supporting sliding table slides on the first guide rail; the top surface of the supporting sliding table is provided with an opening for clamping a workpiece to be detected, a frame body is arranged outside the water immersion tank, a driving mechanism is mounted on the frame body, the driving mechanism comprises a vertical second vertical linear guide rail and a third horizontal linear guide rail which is horizontally arranged and is perpendicular to the first guide rail, the third horizontal linear guide rail is fixed on a sliding block of the second vertical linear guide rail, and the third horizontal linear guide rail is fixed on the sliding block of the second vertical linear guide rail. And the third horizontal linear guide rail can slide up and down along the second vertical linear guide rail in a reciprocating manner.

Description

Technical Field

[0001] The utility model relates to the technical field of radiator detection, in particular to an automatic turning mechanism for ultrasonic detection. Background Art

[0002] Ultrasonic flaw detection is a method of inspecting defects in parts by using the characteristics of ultrasound energy penetrating deep into metal materials and reflecting at the edge of the interface when entering from one section to another. When ultrasound propagates in the medium, the changes in the ultrasonic echo signal caused by the different acoustic properties of the material and the defect, combined with the difference in the acoustic properties of the forging defects and the forging material itself, can achieve a more accurate qualitative analysis of its internal defects. Ultrasonic waves can not only accurately detect surface and near-surface defects of forgings, but also accurately detect internal defects; ultrasonic testing of forgings can greatly improve the pass rate of forgings and improve the subsequent quality of products.

[0003] At present, the ultrasonic testing flip clamping mechanism is generally used for ultrasonic flaw detection of forgings of various shapes. For example, the Chinese utility model with the announcement number CN218927752U discloses an ultrasonic testing block flipping tool, including a supporting base plate, two supporting columns are arranged on the supporting base plate, and the first clamping jaw and the second clamping jaw are respectively hinged on the inner surfaces of the two supporting columns; the hinge axis of the first clamping jaw and one supporting column and the hinge axis of the second clamping jaw and the other supporting column are coaxial and parallel to the supporting base plate, the first clamping jaw and the second clamping jaw are not in contact with the supporting base plate, and there is a space for clamping the test block between the first clamping jaw and the second clamping jaw. This scheme adopts a labor-saving rotating tooling to replace the manual flipping of the test block, reducing labor intensity.

[0004] The defect of the above scheme is that: since the brazing workpieces processed by our company are heavy and of different shapes, the manual shaking and flipping method is time-consuming and labor-intensive, and manual operation is prone to safety hazards for personnel and workpieces, and the upper and lower workpieces need to be manually moved and replaced by personnel. Therefore, our company has designed an automatic ultrasonic detection equipment for the detection of the qualified rate of water-cooled heat sink welding, which solves the problems of (quickly and safely) flipping, rotating, fixing, and replacing the detection surface of the workpiece, improves production efficiency, and improves detection safety. Utility Model Content

[0005] The utility model provides an automatic turning mechanism for ultrasonic testing, so as to solve the problem of low production efficiency caused by manual turning of the existing water-cooled heat sink during multi-faceted ultrasonic testing.

[0006] In order to solve the above problems, the technical solution adopted by the utility model is as follows: an automatic flipping mechanism for ultrasonic testing, including a water immersion tank for immersing a workpiece to be tested, and also including a horizontally arranged first guide rail, the first guide rail is installed on the bottom surface of the water immersion tank, a support slide is slidably provided on the first guide rail, and an opening for the workpiece to be tested to engage is opened on the top surface of the support slide, the water immersion tank is provided with a frame outside, and a driving mechanism is installed on the frame, the driving mechanism includes a vertical second vertical linear guide rail, a third horizontal linear guide rail arranged horizontally and perpendicular to the first guide rail, and the third horizontal linear guide rail is fixed on the slider of the second vertical linear guide rail, so that the third horizontal linear guide rail can slide back and forth up and down along the second vertical linear guide rail;

[0007] A mounting frame is fixed on the slider of the third horizontal linear guide rail, and two rotating cylinders that can move relative to each other are arranged at the bottom of the mounting frame. Clamping blocks are fixed on the output shafts of the two rotating cylinders, and receiving grooves that do not interfere with the end surface of the workpiece to be measured are opened on the opposite surfaces of the clamping blocks;

[0008] The rotary cylinder, the first guide rail, the second vertical linear guide rail, and the third horizontal linear guide rail are all electrically connected to an external controller.

[0009] The basic principle of this scheme is: the workpiece to be measured is transported to the bottom of the flipping station by a supporting slide that can move on the first guide rail. When the workpiece to be measured arrives at the flipping station, the third horizontal linear guide rail and the second vertical linear guide rail work to drive the rotating cylinders to be located on both sides of the workpiece to be measured, and the rotating cylinders move relatively, so that the two sides of the workpiece to be measured contact with the accommodating grooves on the support block, so that the workpiece to be measured is clamped. After the second vertical linear guide rail moves up, the rotating cylinder is started, and the support block rotates 180° to flip the workpiece to be measured. The second vertical linear guide rail moves down, and the workpiece to be measured is placed back on the supporting slide. The supporting slide slides along the first guide rail to move the workpiece to be measured to the next station.

[0010] The beneficial effects of this solution are as follows: since the brazing workpieces processed by our company are heavy and of various shapes, there are welding surfaces that need to be inspected on both sides of the reference surface of the brazing parts. Therefore, it is necessary to flip the workpiece after inspecting one side and then inspect the welding quality of the back side. The existing mechanism uses manual shaking and flipping, which is not only time-consuming and labor-intensive, but also prone to safety hazards for personnel and workpieces. At the same time, the upper and lower workpieces need to be manually moved by personnel, resulting in low production efficiency. The automatic flipping mechanism proposed in this solution uses a rotating cylinder, a first guide rail, a second vertical linear guide rail, and a third horizontal linear guide rail for linkage to realize automatic flipping of the water-cooled heat sink during water immersion ultrasonic testing. It not only effectively improves the detection efficiency and ensures product consistency, but is not affected by inaccurate manual positioning.

[0011] Furthermore, a positioning column is vertically provided below the first guide rail at the flipping position of the workpiece to be measured. There are three positioning columns. The output end of the external driving cylinder is connected below the positioning column. The positioning column can be moved vertically up and down by driving the cylinder. A vertical through hole is provided on the support slide. Two vertical nozzle holes are provided at both ends of the workpiece to be measured. The positions of the holes correspond to the positions of the positioning columns. When the workpiece to be measured slides to the flipping station on the support slide, the positioning column extends upward under the drive of the driving cylinder, thereby passing through the holes on the workpiece and the support slide, and stably positioning the workpiece and the support slide at the flipping station.

[0012] Furthermore, the clamping block is "C" shaped, the bottom of the receiving groove is rectangular, and the opening end of the receiving groove is a gradually expanding inclined surface. Since there are multiple stepped cones at the nozzles at both ends of the workpiece to be measured, the opening of the receiving groove prevents interference with the two ends of the workpiece, thereby protecting the appearance of the workpiece.

[0013] Furthermore, slide rails are installed at both ends of the bottom surface of the mounting frame, and the bottom wall of the slide rail has a dovetail groove along its length, and a wedge is slidably connected in the dovetail groove. The rotary cylinder is installed on the bottom wall of the wedge, and two telescopic cylinders are installed between the opposite surfaces of the wedges at both ends. The output end of the telescopic cylinder is connected to the end surface of the wedge, and the two wedges can be driven to move relative to or away from each other through the telescopic output end of the telescopic cylinder. The two rotary motors are driven to move relative to and away from each other in the horizontal direction by the telescopic cylinder, thereby completing the clamping and flipping of the workpiece to be measured.

[0014] Furthermore, the top surface of the support slide is provided with a plurality of vertical limit shafts, which are respectively in contact with the front and rear end walls of the workpiece to be tested. The workpiece to be tested is precisely and firmly positioned on the support slide by the limit shafts, ensuring that the test surface references of multiple products are consistent.

[0015] Furthermore, the number of the limiting axes is 4, and the limiting axes are distributed in a 2*2 matrix. Two points are connected into a straight line, and the workpiece to be measured is limited by the straight line to ensure that the force on both sides of the workpiece to be measured is uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of an embodiment of the utility model;

[0017] Figure 2 A three-dimensional schematic diagram of an embodiment of the utility model;

[0018] Figure 3 A three-dimensional schematic diagram of an embodiment of the utility model;

[0019] Figure 4 A three-dimensional schematic diagram of an embodiment of the utility model;

[0020] Figure 5A three-dimensional schematic diagram of an embodiment of the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of the clamping block 11 in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The following is further described in detail through specific implementation methods:

[0023] The figure marks in the drawings of the specification include: a workpiece to be measured 1, a first guide rail 2, a supporting slide 3, a second vertical linear guide rail 4, a third horizontal linear guide rail 5, a mounting frame 6, a slide rail 7, a wedge block 8, a telescopic cylinder 9, a rotary cylinder 10, a clamping block 11, a receiving groove 12, and a positioning column 13.

[0024] The embodiment is basically as shown in the attached Figure 1 To Attachment Figure 6 As shown:

[0025] An automatic flipping mechanism for ultrasonic testing includes a water immersion tank for a workpiece 1 to be tested to be submerged, a first guide rail 2 horizontally arranged in the water immersion tank, the first guide rail 2 is arranged along the length of the water immersion tank, a support slide 3 slides on the first guide rail 2, and an opening that fits the width of the workpiece 1 to be tested is opened on the support slide 3 for the workpiece 1 to be tested to be engaged with the opening of the support slide 3.

[0026] In this embodiment, four vertical limit axes are provided on the top surface of the supporting slide 3, and the limit axes are distributed in a 2*2 matrix. The distance between two rows of limit axes is the width of the workpiece 1 to be measured, and the circumferential side walls of the limit axes can respectively touch the front and rear end walls of the workpiece 1 to be measured.

[0027] A frame is provided on the upper side of the first guide rail 2, and a driving mechanism is installed on the frame. The driving mechanism includes a second vertical linear guide rail 4 that can be arranged vertically, and a third horizontal linear guide rail 5 that is arranged horizontally and perpendicular to the first guide rail 2. The third horizontal linear guide rail 5 is fixed on the slider of the second vertical linear guide rail 4, so that the third horizontal linear guide rail 5 can slide back and forth along the second vertical linear guide rail 4. A mounting frame 6 is fixed on the slider of the third horizontal linear guide rail 5. A slide rail 7 parallel to the mounting frame 6 is symmetrically installed on the bottom surface of the mounting frame 6. A dovetail groove is opened on the bottom surface of the slide rail 7 along the length of the slide rail 7, and a wedge block 8 is slidably connected in the dovetail groove. Two telescopic cylinders 9 are provided between the opposite ends of the two slide rails 7, and the output ends of the telescopic cylinders 9 are respectively fixed on the opposite end side walls of the wedge block 8. When the two telescopic cylinders 9 are extended synchronously, the wedge blocks 8 in the two slide rails 7 slide back to back, and when the two telescopic cylinders 9 are contracted synchronously, the two wedge blocks 8 slide toward each other.

[0028] Two axially horizontal rotary cylinders 10 are fixed on the two wedge blocks 8 , respectively. The output ends of the two rotary cylinders 10 are coaxial and arranged opposite to each other. Clamping blocks 11 are fixed on the output ends of the rotary cylinders 10 .

[0029] The side section of the clamping block 11 is "C" shaped, and the two clamping blocks 11 are provided with receiving grooves 12 on the opposite surfaces, and the bottom surface of the receiving groove 12 is rectangular, and the upper and lower side walls of the receiving groove 12 gradually expand outward from the bottom to the opening, so that the step surfaces at both ends of the workpiece are not interfered by the inner wall of the receiving groove 12. When the rotary cylinder 10 is started, the clamping block 11 rotates 180 degrees along the horizontal axis.

[0030] A vertical positioning column 13 is provided below the first guide rail 2 at the flipping station. In this embodiment, there are three positioning columns 13, and there are two nozzle holes on the workpiece 1 to be measured. The same holes are opened on the support slide 3. The positioning columns 13 correspond to the positions of the holes on the nozzle and the support slide 3. A driving cylinder is provided below the positioning columns 13 so that the positioning columns 13 can move up and down in the vertical direction. When the support slide 3 with the workpiece 1 to be measured reaches the flipping station, the driving cylinder is activated to extend the positioning column 13 upward, thereby determining the position of the workpiece 1 to be measured.

[0031] The rotary cylinder 10, the driving cylinder, the telescopic cylinder 9, the first guide rail 2, the second vertical linear guide rail 4, and the third horizontal linear guide rail 5 are all electrically connected to the external controller.

[0032] The specific implementation process is as follows:

[0033] The workpiece to be tested is horizontally clamped in the opening of the support slide 3, and the support slide 3 slides horizontally along the first guide rail 2 to the bottom of the flipping station. The mounting frame 6 on the third horizontal linear guide rail 5 slides along the guide rail to just above the support slide 3, and the telescopic cylinder 9 extends synchronously, so that the two wedge blocks 8 move opposite to each other in a straight line, and the rotating cylinders 10 on the two wedge blocks 8 are driven to move opposite to each other. The clamping blocks 11 on the rotating cylinder 10 are respectively located just above the outside of the two ends of the workpiece to be tested 1. The second vertical linear guide rail 4 is started, and the mounting frame 6 is driven to move downward, and the clamping blocks 11 move down to the outside of the two ends of the workpiece to be tested 1. The telescopic cylinder 9 contracts, and the wedge blocks 8 slide relatively. The rotating cylinders 10 on the two wedge blocks 8 slide relatively, so that The horizontal distance between the two clamping blocks 11 is reduced, and the accommodating grooves 12 on the clamping blocks 11 are respectively in contact with the side walls of the two ends of the workpiece 1 to be measured, and clamp the workpiece 1 to be measured, start the second vertical linear guide 4, and the mounting frame 6 is driven to move upward, start the rotating cylinder 10, and the output end of the rotating cylinder 10 rotates 180 degrees. The entire workpiece 1 to be measured is flipped 180 degrees, and the second vertical linear guide 4 is started again. The mounting frame 6 moves down and the workpiece 1 to be measured is placed in the opening of the supporting slide 3. The telescopic cylinder 9 extends out, and the second vertical linear guide 4 starts to drive the mounting frame 6 to move up to complete the flipping of the workpiece. The first guide rail 2 starts to drive the supporting slide 3 to the downward movement station, waiting for the next workpiece to arrive at the flipping station.

[0034] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An automatic turning mechanism for ultrasonic testing, comprising a water immersion tank for immersing a workpiece to be tested, characterized in that: It also includes a first guide rail arranged horizontally, the first guide rail is installed on the bottom surface of the water immersion tank, a support slide is slidably arranged on the first guide rail, and an opening for engaging the workpiece to be measured is opened on the top surface of the support slide, a frame is arranged outside the water immersion tank, a driving mechanism is installed on the frame, and the driving mechanism includes a vertical second vertical linear guide rail, a third horizontal linear guide rail arranged horizontally and perpendicular to the first guide rail, and the third horizontal linear guide rail is fixed on the slider of the second vertical linear guide rail, so that the third horizontal linear guide rail can slide reciprocatingly up and down along the second vertical linear guide rail; A mounting frame is fixed on the slider of the third horizontal linear guide rail, and two rotating cylinders that can move relative to each other are arranged at the bottom of the mounting frame. Clamping blocks are fixed on the output shafts of the two rotating cylinders, and receiving grooves that do not interfere with the end surface of the workpiece to be measured are opened on the opposite surfaces of the clamping blocks; The rotary cylinder, the first guide rail, the second vertical linear guide rail, and the third horizontal linear guide rail are all electrically connected to an external controller.

2. The automatic turning mechanism for ultrasonic testing according to claim 1, characterized in that: A positioning column is vertically provided below the first guide rail at the flipping position of the workpiece to be measured. There are three positioning columns. The bottom of the positioning column is connected to the output end of an external driving cylinder. The positioning column can be moved vertically up and down by driving the cylinder. A vertical through hole is provided on the supporting slide. Two vertical nozzle holes are provided at both ends of the workpiece to be measured. The positions of the holes correspond to the positions of the positioning columns.

3. The automatic turning mechanism for ultrasonic testing according to claim 1, characterized in that: The clamping block is in a "C" shape, the bottom of the receiving groove is a rectangle, and the opening end of the receiving groove is a gradually expanding inclined surface.

4. The automatic turning mechanism for ultrasonic testing according to claim 1, characterized in that: Slide rails are respectively installed at both ends of the bottom surface of the mounting frame, and a dovetail groove is opened on the bottom wall of the slide rail along its length, and a wedge block is slidably connected in the dovetail groove. The rotary cylinder is installed on the bottom wall of the wedge block, and two telescopic cylinders are respectively installed between the opposite surfaces of the wedge blocks at both ends. The output end of the telescopic cylinder is connected to the end surface of the wedge block, and the two wedge blocks can be driven to move relative to or away from each other through the extension and contraction of the output end of the telescopic cylinder.

5. The automatic turning mechanism for ultrasonic testing according to claim 1, characterized in that: The top surface of the supporting slide is provided with a plurality of vertical limiting shafts, and the limiting shafts are respectively in contact with the front and rear end walls of the workpiece to be measured.

6. The automatic turning mechanism for ultrasonic testing according to claim 5, characterized in that: The number of the limiting axes is 4, and the limiting axes are distributed in a 2*2 matrix.

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