Alloy component detection mechanism

Abstract

The invention provides an alloy component detection mechanism which can automatically adapt to detection of aluminum alloy parts of different models and sizes and is good in universality, low in detection cost, convenient to operate and low in labor intensity. Comprising a detection table, and the detection table is provided with a feeding conveying mechanism used for conveying to-be-detected alloy parts, a three-axis mechanism and a stroke positioning triggering mechanism, wherein the three-axis mechanism and the stroke positioning triggering mechanism are located on the two sides of the feeding conveying mechanism respectively; the three-axis mechanism is connected with an adsorption mechanism used for adsorbing the alloy part to be tested so as to drive the adsorption mechanism to move along an X axis, a Y axis and a Z axis; the stroke positioning triggering mechanism comprises a fixing frame and a stroke collecting piece installed on the fixing frame, a spectrograph is installed on the fixing frame, and the stroke collecting piece is configured to collect stroke information when abutting against the to-be-tested alloy piece and feed back the stroke information to the control mechanism; and the control mechanism is connected with the three-axis mechanism so as to move the to-be-detected alloy part to the spectrograph for alloy component detection.

Description

Technical Field

[0001] The invention relates to the technical field of metal alloy detection, in particular to an alloy composition detection mechanism. Background Art

[0002] In modern industrial production, material quality control is a vital link, especially for metal alloys, which are widely used in aerospace, automobile manufacturing, building materials and other fields. The accurate detection of their composition is directly related to the quality and performance of the products. The handheld LIBS laser spectrometer has significant advantages in the detection of metal alloys (such as aluminum alloys). It is becoming a new favorite in the field of aluminum alloy detection with its characteristics of fast, efficient, non-destructive, portable, and simultaneous analysis of multiple elements. It can not only improve detection efficiency and reduce costs, but also improve product quality. It is an indispensable detection tool in modern industrial production.

[0003] When inspecting aluminum alloy parts, it is necessary to measure multiple measuring points on the aluminum alloy parts to obtain accurate measurement values. However, this inspection method requires the operator to hold the spectrometer for multiple measurements, which is labor-intensive and inefficient. For this reason, robots are currently used to clamp the spectrometer for inspection operations, but the cost of the robot is relatively high, and the robot's action instructions need to be constantly adjusted to adapt to the inspection of aluminum alloy parts of different models and sizes, and the versatility is poor. Summary of the invention

[0004] In view of the above problems, the present invention provides an alloy composition detection mechanism, which can automatically adapt to the detection of alloy parts of different models and sizes, has good versatility, low detection cost, convenient operation and low labor intensity.

[0005] The present invention adopts the following technical scheme: an alloy composition detection mechanism, including a detection table, on which is provided a feed conveying mechanism for conveying the alloy piece to be tested, and a three-axis mechanism and a stroke positioning trigger mechanism respectively located on both sides of the feed conveying mechanism; the three-axis mechanism is connected with an adsorption mechanism for adsorbing the alloy piece to be tested, so as to drive the adsorption mechanism to move along the X-axis, the Y-axis and the Z-axis; the stroke positioning trigger mechanism includes a fixed frame and a stroke collection component mounted on the fixed frame, a spectrometer is mounted on the fixed frame, and the stroke collection component is configured to collect stroke information when it abuts against the alloy piece to be tested, and feed it back to a control mechanism; the control mechanism is connected with the three-axis mechanism to move the alloy piece to be tested to the spectrometer for alloy composition detection.

[0006] Furthermore, the fixed frame is provided with a plurality of travel positions, each of which is provided with the travel collection member, and the travel collection members are connected to the control mechanism;

[0007] Furthermore, the travel acquisition member adopts a travel switch; the travel acquisition member is provided with two, which are divided into a first travel acquisition member for acquiring the thickness of the alloy member to be tested and a second travel acquisition member for acquiring the diameter of the alloy member to be tested; a column is installed on the fixed frame, the first travel acquisition member is fixed to the upper part of the column through a vertical plate, and the second travel acquisition member is fixed to the column located below the vertical plate through a horizontal plate, and the horizontal plate and the vertical plate are arranged perpendicular to each other;

[0008] Further, the three-axis mechanism includes an X-axis driving mechanism for driving the alloy part to be tested to move in the X-axis direction, a Y-axis driving mechanism for driving the alloy part to be tested to move in the Y-axis direction, and a Z-axis driving mechanism for driving the alloy part to be tested to move in the Z-axis direction, and the X-axis driving mechanism, the Y-axis driving mechanism, and the Z-axis driving mechanism are all connected to the control mechanism; the X-axis driving mechanism is arranged along the conveying direction of the feed conveying mechanism; the Y-axis driving mechanism is installed on the X-axis driving mechanism to move along the X-axis direction under the drive of the X-axis driving mechanism; the Z-axis driving mechanism is installed on the Y-axis driving mechanism to move along the Y-axis direction under the drive of the Y-axis driving mechanism; the adsorption mechanism is installed on the Z-axis driving mechanism to move along the Z-axis direction under the drive of the Z-axis driving mechanism;

[0009] Further, the adsorption mechanism includes a connecting rod and a connecting plate, the connecting plate is connected to the Z-axis driving mechanism to move along the Z-axis direction under the drive of the Z-axis driving mechanism; a connecting seat is installed on the connecting plate, one end of the connecting rod is fixed on the connecting seat, and the other end of the connecting rod is connected to an adsorption seat, and the surface of the adsorption seat is provided with an adsorption area for adsorbing the alloy part to be tested;

[0010] Further, a first buffer plate is mounted on the connecting rod, the first buffer plate is connected to a second buffer plate via a guide rod, a first spring is mounted on the guide rod between the first buffer plate and the second buffer plate, and the adsorption seat is mounted on the second buffer plate;

[0011] Furthermore, the feed conveying mechanism comprises a conveyor belt, the conveyor belt is arranged on the detection table, an auxiliary seat body is placed on the conveyor belt, the top surface of the auxiliary seat body is a V-shaped surface, and symmetrical card slots are opened on both sides of the top surface of the auxiliary seat body, and the plug plate is inserted into the card slots on both sides;

[0012] Furthermore, there is a height difference between the two V-shaped surfaces at the top end of the auxiliary seat body;

[0013] Furthermore, the fixing frame is provided with an adaptive mechanism, the adaptive mechanism includes two connecting seats, the spectrometer is mounted between the two connecting seats, the bottom surface of the connecting seat and the fixing frame are provided with upper and lower corresponding fixing columns, and a second spring is connected between the upper and lower corresponding fixing columns;

[0014] Furthermore, a safety mechanism and an indicator light are installed on the fixing frame. The safety mechanism is connected to the control mechanism and is used to detect the fitting gap value between the alloy part to be tested and the spectrometer, and feed back to the control mechanism. If the fitting gap value is greater than the gap threshold, the control mechanism controls the indicator light to go out and controls the current alloy part to be tested to re-perform the alloy composition detection operation.

[0015] The beneficial effect of the present invention is that when conducting detection, the adsorption mechanism for adsorbing the alloy parts to be tested is driven by the three-axis mechanism to move, and the stroke information of the alloy parts to be tested of different models and sizes is collected by the stroke collection part, so that the alloy parts to be tested of different models and sizes can be accurately moved to the spectrometer for alloy composition detection. The operation is convenient, the labor intensity is low, there is no need to purchase expensive robots, the detection cost is low, and the versatility is good, and it has good economic use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 The enlarged structural diagram at position I in FIG.

[0018] Figure 3 It is an exploded schematic diagram of the assembly of the auxiliary seat body and the alloy part to be tested in the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the present invention;

[0020] Figure 5 It is a schematic diagram of control connection in the present invention;

[0021] Figure 6 is a schematic structural diagram of a fixing frame in Embodiment 2 of the present invention; DETAILED DESCRIPTION

[0022] like Figure 1 to Figure 5As shown, an alloy composition detection mechanism of the present invention includes a detection table 1, on which is provided a feed conveying mechanism 3 for conveying an alloy piece 2 to be tested, and a three-axis mechanism 4 and a stroke positioning trigger mechanism 5 respectively located on both sides of the feed conveying mechanism 3; the three-axis mechanism 4 is connected to an adsorption mechanism 6 for adsorbing the alloy piece 2 to be tested, so as to drive the adsorption mechanism 6 to move along the X-axis, the Y-axis and the Z-axis; the stroke positioning trigger mechanism 5 includes a fixed frame 7 and a stroke acquisition component mounted on the fixed frame 7, a spectrometer 8 is mounted on the fixed frame 7, and the stroke acquisition component is configured to collect stroke information when it is in contact with the alloy piece 2 to be tested, and feed it back to the control mechanism to generate a conveying stroke parameter; the control mechanism is connected to the three-axis mechanism 4, so as to move the alloy piece 2 to be tested to the spectrometer 8 for alloy composition detection according to the conveying stroke parameter; wherein the control mechanism is an existing mechanism, equipment or instrument, which is mounted on the detection table 1, or can be remotely controlled.

[0023] The fixed frame 7 is provided with two travel positions, each of which is equipped with a travel collection piece, and the travel collection pieces are all connected to the control mechanism; further, the travel collection piece adopts the existing travel switch; there are two travel collection pieces, which are divided into a first travel collection piece 9 for collecting the thickness of the alloy piece 2 to be tested, and a second travel collection piece 10 for collecting the diameter of the alloy piece 2 to be tested. The first travel collection piece 9 feeds back the collected thickness information of the alloy piece 2 to be tested, and the second travel collection piece 10 feeds back the collected diameter information of the alloy piece 2 to be tested to the control mechanism, so that the control mechanism can obtain the corresponding size of the alloy piece 2 to be tested, and then control the three-axis mechanism 4 to accurately send the alloy piece 2 to be tested to the spectrometer 8 for alloy composition detection; a column 11 is installed on the fixed frame 7, the first travel collection piece 9 is fixed to the upper part of the column 11 through the vertical plate 12, and the second travel collection piece is fixed to the column 11 located below the vertical plate 12 through the horizontal plate 13, and the horizontal plate 13 and the vertical plate 12 are arranged perpendicular to each other.

[0024] The three-axis mechanism 4 includes an X-axis driving mechanism 14 for driving the alloy piece to be tested to move in the X-axis direction, a Y-axis driving mechanism 15 for driving the alloy piece to be tested to move in the Y-axis direction, and a Z-axis driving mechanism 16 for driving the alloy piece to be tested to move in the Z-axis direction. The X-axis driving mechanism 14, the Y-axis driving mechanism 15, and the Z-axis driving mechanism 16 are all connected to the control mechanism; the X-axis driving mechanism 14 is arranged along the conveying direction of the feed conveying mechanism 3; the Y-axis driving mechanism 15 is installed on the X-axis driving mechanism 14 to move along the X-axis direction under the drive of the X-axis driving mechanism 14; the Z-axis driving mechanism 16 is installed on the Y-axis driving mechanism 15 to move in the Y-axis direction. The three-axis mechanism 4 is driven by the X-axis driving mechanism 15 to move along the Y-axis direction; the adsorption mechanism 6 is installed on the Z-axis driving mechanism 16 to move along the Z-axis direction under the drive of the Z-axis driving mechanism 16; the X-axis driving mechanism 14, the Y-axis driving mechanism 15, and the Z-axis driving mechanism 16 in the three-axis mechanism 4 are all existing structures. Furthermore, the X-axis driving mechanism 14, the Y-axis driving mechanism 15, and the Z-axis driving mechanism 16 all include a driving motor, a lead screw, a lead screw nut, a slide rail, and a slider. The driving motor is connected to the lead screw, and the lead screw nut is installed on the lead screw. The driving motor drives the lead screw to rotate, so that the lead screw nut moves along the lead screw and cooperates with the slider and the slide rail to achieve sliding;

[0025] The X-axis drive mechanism 14 is used as an example. The X-axis drive mechanism 14 includes an X-axis drive motor 17, an X-axis lead screw (not shown in the figure), an X-axis lead screw nut (not shown in the figure), an X-axis slide rail 18, and an X-axis slider 19. The X-axis drive motor 17 is installed on the detection table 1, the X-axis drive motor 17 is connected to the X-axis lead screw, the X-axis lead screw nut is installed on the X-axis lead screw, the X-axis drive motor 17 drives the X-axis lead screw to rotate, so that the X-axis lead screw nut moves along the X-axis lead screw, the X-axis slider 19 is connected to the X-axis lead screw nut, and both ends of the X-axis slider 19 are slidably connected to the X-axis slide rail 18. The Y-axis drive mechanism 15 is assembled on the X-axis slider 19, so that the Y-axis drive mechanism 15 moves along the X-axis direction through the cooperation of the X-axis slider 19 and the X-axis slide rail 18;

[0026] The connection structures of the Y-axis driving mechanism 15 and the Z-axis driving mechanism 16 are the same as those of the X-axis driving mechanism 14 . The only difference is that they are assembled on different sliders to achieve movement in different directions. Therefore, they will not be described in detail.

[0027] The adsorption mechanism 6 includes a connecting rod 20 and a connecting plate 21. The connecting plate 21 is connected to the Z-axis driving mechanism 16 so as to move along the Z-axis direction under the drive of the Z-axis driving mechanism 16; a connecting seat 22 is installed on the connecting plate 21, one end of the connecting rod 20 is fixed on the connecting seat 22, and the other end of the connecting rod 20 is connected to an adsorption seat 23, and the surface of the adsorption seat 23 is provided with an adsorption area for adsorbing the alloy part 2 to be tested; a first buffer plate 24 is installed on the connecting rod 20, and the first buffer plate 24 is connected to the second buffer plate 25 through a guide rod 26, and the second buffer plate 25 is penetrated on the guide rod 26, and a first spring 27 is installed on the guide rod 26 between the first buffer plate 24 and the second buffer plate 25, and the adsorption seat 23 is installed on the second buffer plate 25.

[0028] The feeding conveying mechanism 3 includes a conveyor belt 28, which is arranged on the detection table 1. An auxiliary seat body 29 is placed on the conveyor belt 28. The top surface of the auxiliary seat body 29 is a V-shaped surface, so that the alloy piece 2 to be tested can be placed on the auxiliary seat body 29 to prevent it from falling during transportation; there is a height difference between the two V-shaped surfaces at the top of the auxiliary seat body 29, which can prevent the cylindrical alloy piece 2 to be tested from tipping over; symmetrical slots 30 are provided on both sides of the top surface of the auxiliary seat body 29, and the insert plates 31 are inserted into the slots 30 on both sides. The insert plates 31 can be inserted into different slots 30 to better adapt to alloy pieces 2 to be tested of different models and sizes, so as to facilitate better adsorption by the adsorption mechanism 6.

[0029] Figure 1 to Figure 5 It is a structural diagram of the first embodiment. At this time, the spectrometer 8 is fixedly mounted on the fixing frame 7 .

[0030] In addition, a safety mechanism and an indicator light are installed on the fixed frame 7, and the safety mechanism and the indicator light are connected to the control mechanism; the safety mechanism can adopt a safety switch, and the safety mechanism is used to detect the fitting gap value between the alloy part 2 to be tested and the spectrometer 8, and feed it back to the control mechanism. If the fitting gap value is greater than the gap threshold, the control mechanism controls the indicator light to go out, and controls the current alloy part to be tested to re-perform the alloy composition detection operation. That is to say, if the alloy part 2 to be tested and the spectrometer 8 are not well fitted, the control mechanism will control the three-axis mechanism to move in an array form, replace the spectrometer 8 to the fitting detection point on the alloy part 2 to be tested, and the spectrometer 8 will detect the current alloy part 2 to be tested again until the fitting gap value is not greater than the gap threshold, then the spectrometer 8 can detect the effective alloy composition data.

[0031] Embodiment 2

[0032] When the alloy piece 2 to be tested is moved to the spectrometer 8 through the three-axis mechanism 4 for alloy composition detection, since the upper and lower surfaces of the alloy piece 2 to be tested cannot be kept parallel during the grinding process, there is a tilt, resulting in a mismatch between the spectrometer 8 and the alloy piece 2 to be tested, so that the detection data of the spectrometer 8 will be inaccurate. Figure 6As shown, an adaptive mechanism is provided on the fixing frame 7, and the adaptive mechanism includes two supporting seats 32. The spectrometer 8 is mounted between the two supporting seats 32. Upper and lower corresponding fixing columns 33 are installed on the bottom surface of the supporting seats 32 and the fixing frame 7. A second spring 34 is connected between the upper and lower corresponding fixing columns 33. When the alloy composition is detected, an adaptive force will be generated due to the action of the second spring 34 on the spectrometer 8, so the spectrometer 8 and the alloy part 2 to be tested will be more closely fitted for detection, thereby improving the accuracy of data detection.

[0033] The working principle of the present invention is that according to the different models and sizes of the alloy pieces 2 to be tested, the insert plate 31 is inserted into different card slots 30, and then the alloy piece 2 to be tested is placed on the V-shaped surface of the auxiliary seat body 29 and transported by the conveyor belt 28. A sensor (not shown in the figure) connected to the control mechanism can be set at a specific position of the detection platform 1 to sense the presence of the alloy piece 2 to be tested. Once the alloy piece 2 to be tested is sensed, the control mechanism controls the three-axis mechanism 4 to move, and enables the adsorption mechanism 6 to adsorb the alloy piece 2 to be tested on the auxiliary seat body 29 at a specific position. Alloy piece 2, at this time, the conveyor belt 28 stops conveying, and then the three-axis mechanism 4 first sends the alloy piece 2 to the position of the first stroke collection piece 9. When the alloy piece 2 to be tested hits the spring piece 35 of the first stroke collection piece 9, the thickness value of the alloy piece 2 to be tested can be determined. Then, the alloy piece 2 to be tested is moved to the position of the second stroke collection piece 10. When the alloy piece 2 to be tested hits the spring piece 36 of the second stroke collection piece 10, the diameter of the alloy piece 2 to be tested can be determined. Then, after the control mechanism receives the thickness information and diameter information of the alloy piece 2 to be tested, it is determined. The size of the alloy piece 2 to be tested is determined, and the control mechanism generates the stroke of accurately conveying the alloy pieces 2 to be tested of different sizes to the spectrometer 8 through the internal existing algorithm according to the determined size, and then controls the three-axis mechanism 4 to accurately convey the alloy piece 2 to be tested to the spectrometer 8 for alloy composition detection, that is, to prevent the alloy piece 2 to be tested from being too tightly pressed on the spectrometer 8, and to prevent the alloy piece 2 to be tested from not being able to contact the spectrometer 8, so that it can be completely fitted with the spectrometer 8 according to different sizes. After the final detection is completed, the three-axis mechanism 4 returns the adsorption mechanism 6 (that is, the adsorption seat 23) that adsorbs the alloy piece 2 to be tested to the initial position, and still places the alloy piece 2 to be tested on the auxiliary seat body 29. At this time, the conveyor belt 28 continues to move to convey and output. In addition, the present patent can use multiple alloy composition detection mechanisms in conjunction, so as to realize flow operation, and can also realize multiple detections of the alloy piece 2 to be tested; and the alloy pieces 2 to be tested of other models and sizes are repeated according to the above-mentioned action principle, so as to automatically adapt to the detection of aluminum alloy pieces of different models and sizes, with good versatility, and no need to purchase expensive detection equipment, low detection cost, convenient operation, and low labor intensity.

[0034] The diameter or thickness information of the alloy part 2 to be tested is collected by the stroke collection part, which is an existing collection method. The collection of the thickness of the alloy part 2 to be tested is used as an example. When the alloy part 2 to be tested is not adsorbed, the adsorption seat 23 moves to contact with the spring piece of the stroke collection part, and a stroke parameter (a constant value) can be obtained. When the alloy part 2 to be tested is adsorbed, the alloy part 2 to be tested moves to contact with the spring piece of the stroke collection part, and another stroke parameter can be obtained. The difference between the two stroke parameters is the thickness of the alloy part 2 to be tested.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An alloy composition detection mechanism, characterized in that: The invention comprises a testing platform, on which a feeding and conveying mechanism for conveying the alloy piece to be tested and a three-axis mechanism and a stroke positioning trigger mechanism respectively located on both sides of the feeding and conveying mechanism are provided; the three-axis mechanism is connected with an adsorption mechanism for adsorbing the alloy piece to be tested, so as to drive the adsorption mechanism to move along the X-axis, the Y-axis and the Z-axis; the stroke positioning trigger mechanism comprises a fixed frame and a stroke acquisition component mounted on the fixed frame, a spectrometer is mounted on the fixed frame, and the stroke acquisition component is configured to collect stroke information when it abuts against the alloy piece to be tested, and feed it back to a control mechanism; the control mechanism is connected with the three-axis mechanism to move the alloy piece to be tested to the spectrometer for alloy composition detection.

2. An alloy composition detection mechanism according to claim 1, characterized in that: The fixing frame is provided with a plurality of travel positions, each of which is provided with the travel collecting member, and the travel collecting members are connected to the control mechanism.

3. An alloy composition detection mechanism according to claim 1, characterized in that: The stroke acquisition component adopts a stroke switch; there are two stroke acquisition components, which are divided into a first stroke acquisition component for acquiring the thickness of the alloy part to be tested, and a second stroke acquisition component for acquiring the diameter of the alloy part to be tested. The fixed frame is equipped with a column, the first stroke acquisition component is fixed to the upper part of the column through a vertical plate, and the second stroke acquisition component is fixed to the column located below the vertical plate through a horizontal plate, and the horizontal plate and the vertical plate are arranged perpendicular to each other.

4. The alloy composition detection mechanism according to claim 1, characterized in that: The three-axis mechanism includes an X-axis driving mechanism for driving the alloy part to be tested to move in the X-axis direction, a Y-axis driving mechanism for driving the alloy part to be tested to move in the Y-axis direction, and a Z-axis driving mechanism for driving the alloy part to be tested to move in the Z-axis direction, and the X-axis driving mechanism, the Y-axis driving mechanism, and the Z-axis driving mechanism are all connected to the control mechanism; The X-axis driving mechanism is arranged along the conveying direction of the feed conveying mechanism; the Y-axis driving mechanism is installed on the X-axis driving mechanism to move along the X-axis direction under the drive of the X-axis driving mechanism; the Z-axis driving mechanism is installed on the Y-axis driving mechanism to move along the Y-axis direction under the drive of the Y-axis driving mechanism; the adsorption mechanism is installed on the Z-axis driving mechanism to move along the Z-axis direction under the drive of the Z-axis driving mechanism.

5. The alloy composition detection mechanism according to claim 1, characterized in that: The adsorption mechanism includes a connecting rod and a connecting plate, wherein the connecting plate is connected to the Z-axis driving mechanism so as to move along the Z-axis direction under the drive of the Z-axis driving mechanism; a connecting seat is installed on the connecting plate, one end of the connecting rod is fixed on the connecting seat, and the other end of the connecting rod is connected to an adsorption seat, and the surface of the adsorption seat is provided with an adsorption area for adsorbing the alloy part to be tested.

6. An alloy composition detection mechanism according to claim 5, characterized in that: The connecting rod is provided with a first buffer plate, the first buffer plate is connected with a second buffer plate via a guide rod, a first spring is provided on the guide rod between the first buffer plate and the second buffer plate, and the adsorption seat is provided on the second buffer plate.

7. An alloy composition detection mechanism according to claim 1, characterized in that: The feed conveying mechanism includes a conveyor belt, which is arranged on the detection table. An auxiliary seat body is placed on the conveyor belt. The top surface of the auxiliary seat body is a V-shaped surface. Symmetrical slots are opened on both sides of the top surface of the auxiliary seat body, and the plug plates are inserted into the slots on both sides.

8. An alloy composition detection mechanism according to claim 7, characterized in that: There is a height difference between the two V-shaped surfaces at the top end of the auxiliary seat body.

9. An alloy composition detection mechanism according to any one of claims 1 to 8, characterized in that: The fixing frame is provided with an adaptive mechanism, which includes two connecting seats. The spectrometer is mounted between the two connecting seats. Upper and lower corresponding fixing columns are installed on the bottom surface of the connecting seat and the fixing frame. A second spring is connected between the upper and lower corresponding fixing columns.

10. An alloy composition detection mechanism according to any one of claim 9, characterized in that: A safety mechanism and an indicator light are installed on the fixing frame. The safety mechanism is connected to the control mechanism and is used to detect the fitting gap value between the alloy part to be tested and the spectrometer, and feed back to the control mechanism. If the fitting gap value is greater than the gap threshold, the control mechanism controls the indicator light to go out and controls the current alloy part to be tested to re-perform the alloy composition detection operation.

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