Weld joint detection equipment

Abstract

The embodiment of the utility model provides a weld seam detection device, the weld seam detection device comprises a dolly, a pivot, a torsion spring, a swing assembly and a probe, the swing assembly is pivotally connected with the dolly through the pivot, the torsion spring is sleeved on the periphery of the pivot and is connected between the swing assembly and the dolly, and the axial direction of the torsion spring is parallel to the axial direction of the pivot. The probe is connected with the swing assembly. According to the welding seam detection equipment, the swing assembly provided with the probe is connected with the trolley through the pivot so as to axially rotate around the pivot relative to the trolley, meanwhile, the torsion spring is connected between the trolley and the swing assembly, the swing assembly is driven by the torsion spring to pivot, and the buffering effect is achieved; it is ensured that the probe is attached to the surface of the to-be-detected component to detect the weld.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of weld detection, specifically relates to a weld detection equipment. BACKGROUND

[0002] In the related art, the weld detection equipment is provided with a scanning arm and a swing arm on a crawling trolley, the scanning arm is designed with a probe, the swing arm is connected between the scanning arm and the crawling trolley, and the scanning arm is driven to rotate relative to the crawling trolley through the extension and retraction action of the swing arm, so that the distance between the probe and the weld is adjusted in real time, and it is ensured that the probe is attached to the surface of the weld. However, in the related art, the extension and retraction of the swing arm need to be controlled in real time to adjust the distance between the probe and the weld, so a distance sensor and a control system need to be configured, resulting in that the structure of the weld detection equipment in the related art is relatively complex and the cost is relatively high. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art to some extent.

[0004] To this end, an embodiment of the utility model provides a weld detection equipment.

[0005] The utility model discloses a welding seam detection equipment.

[0006] The trolley, the pivot, the torsional spring, the swing assembly and the probe, the swing assembly is pivotably connected with the trolley through the pivot, the torsional spring is sleeved on the outer periphery of the pivot and is connected between the swing assembly and the trolley, and the probe is connected with the swing assembly.

[0007] The welding seam detection equipment of the utility model embodiment, the swing assembly with the probe is connected with the trolley through the pivot, and can rotate around the axial direction of the pivot relative to the trolley, and the torsional spring is connected between the trolley and the swing assembly, the swing assembly is driven to pivot through the torsional spring and plays a buffering role, and it is ensured that the probe is attached to the surface of the component to be measured to detect the welding seam.

[0008] In some embodiments, the welding seam detection equipment further comprises a limiting piece, the limiting piece is connected to the outer peripheral surface of the pivot, the pivot is fixed in position compared to the swing assembly and is pivotably connected with the trolley, and the limiting piece is used to stop the trolley to limit the pivot angle of the swing assembly relative to the trolley.

[0009] In some embodiments, the trolley has a first connecting boss and a second connecting boss, the pivot is arranged in the first connecting boss and the second connecting boss, the limiting piece is located between the first connecting boss and the second connecting boss, and the first connecting boss and one end of the swing assembly and the second connecting boss and the other end of the swing assembly are both provided with corresponding torsional springs.

[0010] In some embodiments, the probe is retractable and / or pivotable relative to the swing assembly.

[0011] In some embodiments, the swing assembly comprises a swing bracket and a probe bracket, one end of the probe bracket is pivotably connected to the swing assembly and has at least two detection positions relative to the swing assembly, and the other end of the probe bracket is provided with the probe.

[0012] In some embodiments, the swing bracket is provided with a mounting hole, an inner peripheral surface of the mounting hole is provided with at least two positioning grooves arranged at intervals in a circumferential direction of the mounting hole, the positioning grooves form openings in a wall surface of the swing bracket, and the positioning grooves are used to form the detection positions.

[0013] One end of the probe bracket is inserted into the mounting hole of the swing bracket and is movable in an axial direction of the mounting hole relative to the swing bracket, and the one end of the probe bracket is provided with a positioning boss capable of being inserted into any of the positioning grooves through the openings.

[0014] In some embodiments, the swing assembly further comprises a first elastic member and a snap ring, the first elastic member is connected between the other end of the probe bracket and the swing bracket, and the snap ring is arranged at the one end of the probe bracket and used to abut against an end of the swing assembly away from the probe.

[0015] In some embodiments, the trolley comprises a trolley body and a split seat, the split seat is connected to the pivot shaft and the torsional spring, and at least one end of the trolley body is detachably connected to a corresponding split seat.

[0016] In some embodiments, the trolley further comprises a limiting assembly, the limiting assembly is arranged in the trolley body and is retractable and extendable relative to the trolley body, the trolley body is provided with a plug-in boss arranged at intervals with the limiting assembly, the split seat is detachably connected to the plug-in boss, and the limiting assembly is used to abut against an end of the split seat away from the plug-in boss.

[0017] In some embodiments, the limiting assembly comprises a second elastic member and a ball, the trolley is provided with an assembly hole, the second elastic member and the ball are arranged in the assembly hole, and the second elastic member is located between a bottom surface of the assembly hole and the ball, part of the ball is extendable out of the assembly hole and abuttable against the split seat.

[0018] In some embodiments, the trolley further comprises a connected encoder and a wheel, and the encoder and the wheel are arranged in the trolley body. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1It is a schematic view of the welding seam detection equipment of the embodiment of the utility model;

[0020] Figure 2 It is the use state of the welding seam detection equipment of the embodiment of the utility model Figure 1 ;

[0021] Figure 3 It is the use state of the welding seam detection equipment of the embodiment of the utility model Figure 2 ;

[0022] Figure 4 It is the top view of the welding seam detection equipment of the embodiment of the utility model;

[0023] Figure 5 It is the partial section of the welding seam detection equipment of the embodiment of the utility model Figure 1 ;

[0024] Figure 6 It is the partial section of the welding seam detection equipment of the embodiment of the utility model Figure 2 ;

[0025] Figure 7 It is the partial section of the welding seam detection equipment of the embodiment of the utility model Figure 3 ;

[0026] Figure 8 It is the internal schematic view of the trolley of the welding seam detection equipment of the embodiment of the utility model.

[0027] Reference signs:

[0028] 1, trolley; 11, first connecting boss; 12, second connecting boss; 13, trolley body; 131, plug-in boss; 14, split seat; 15, limiting assembly; 151, second elastic piece; 152, ball; 16, encoder; 17, wheel; 2, pivot; 3, torsion spring; 4, swing assembly; 41, swing support; 411, positioning groove; 42, probe support; 421, positioning boss; 43, first elastic piece; 44, snap ring; 5, probe; 6, limiting piece. Specific implementation

[0029] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0030] The welding seam detection equipment according to the embodiments of the utility model is described below with reference to Figures 1-8

[0031] As Figures 1-8 ​As shown, the welding seam detection device of the embodiment of the present application comprises a trolley 1, a pivot 2, a torsion spring 3, a swing assembly 4 and a probe 5.

[0032] The swing assembly 4 is pivotably connected with the trolley 1 through the pivot 2. For example, as shown in the figure, Figure 1 The pivot 2 extends along the front-rear direction and is connected between the swing assembly 4 and the trolley 1, so that the swing assembly 4 can pivot around the front-rear direction relative to the trolley 1.

[0033] The torsion spring 3 is sleeved on the outer periphery of the pivot 2 and is connected between the swing assembly 4 and the trolley 1. For example, as shown in the figure, Figure 1 The outer periphery of the pivot 2 is sleeved with the torsion spring 3, and the torsion spring 3 extends along the front-rear direction and is connected between the swing assembly 4 and the trolley 1.

[0034] The probe 5 is connected with the swing assembly 4. For example, as shown in the figure, Figure 1 The end of the swing assembly 4 away from the trolley 1 is provided with the probe 5, and the probe 5 is preferably but not limited to a phased array probe.

[0035] When the welding seam detection device of the embodiment of the present application is used, as shown in the figure, Figures 1-3 As shown in the figure, Figure 2 As shown in the figure, the ring seam detection state, Figure 3 As shown in the figure, the longitudinal seam detection state, the trolley 1 is arranged on the component to be measured, and the probe 5 faces the surface of the component to be measured, the torsion spring 3 drives the swing assembly 4 to rotate relative to the trolley 1 towards the component to be measured, so that the probe 5 is attached to the surface of the component to be measured to detect the welding seam, when a protrusion appears on the surface of the component to be measured, the protrusion lifts up the probe 5 and the swing assembly 4, at this time, the torsion spring 3 plays a buffering role, and can avoid the interference between the protrusion on the surface of the component to be measured and the probe 5, so that the trolley 1 cannot continue to move.

[0036] The welding seam detection device of the embodiment of the present application, the swing assembly provided with the probe is connected with the trolley through the pivot, so as to rotate around the axial direction of the pivot relative to the trolley, at the same time, the torsion spring is connected between the trolley and the swing assembly, the swing assembly is driven to pivot through the torsion spring and plays a buffering role, so as to ensure that the probe is attached to the surface of the component to be measured to detect the welding seam.

[0037] In some embodiments, the welding seam detection device of the embodiment of the present application further comprises a limiting piece 6, the limiting piece 6 is connected to the outer periphery of the pivot 2, the pivot 2 is fixed in position relative to the swing assembly 4 and is pivotably connected with the trolley 1, and the limiting piece 6 is used to stop the trolley 1 to limit the pivot angle of the swing assembly 4 relative to the trolley 1.

[0038] As shown in the figure, Figure 1 And Figure 5As shown, the pivot 2 is detachably fixedly connected with the swing assembly 4 to pivot synchronously compared with the trolley 1. The limiting member 6 is an annular coaxially sleeved on the outer periphery of the pivot 2, and the limiting member 6 is detachably fixedly connected with the pivot 2, in other words, the limiting member 6 cannot rotate compared with the pivot 2 around the axial direction of the pivot 2. Preferably, the limiting member 6 is connected with the pivot 2 through a positioning pin or a screw. One part of the outer peripheral surface of the limiting member 6 is an arc surface, and the other part of the outer peripheral surface is a plane protruding compared with the arc surface.

[0039] When the swing assembly 4 and the pivot 2 rotate, the pivot 2 drives the limiting member 6 to rotate, and the other part of the outer peripheral surface of the limiting member 6 can abut against the trolley 1 to prevent the swing assembly 4 and the pivot 2 from continuing to rotate, thereby limiting the pivoting angle of the swing assembly 4 relative to the trolley 1, and avoiding that the swing assembly 4 rotates an angle that is too large under the driving of the torsion spring 3. In other words, the limiting member 6 is used to limit the limit angle of the torsion spring 3 driving the swing assembly 4 to rotate.

[0040] In some embodiments, the trolley 1 has a first connecting boss 11 and a second connecting boss 12, the pivot 2 is sleeved on the first connecting boss 11 and the second connecting boss 12, the limiting member 6 is located between the first connecting boss 11 and the second connecting boss 12, and corresponding torsion springs 3 are arranged between the first connecting boss 11 and one end of the swing assembly 4 and between the second connecting boss 12 and the other end of the swing assembly 4.

[0041] As shown in Figure 1 and Figure 4 , the trolley 1 has a first connecting boss 11 and a second connecting boss 12 arranged in the front-rear direction, the pivot 2 extends in the front-rear direction and is simultaneously sleeved on the first connecting boss 11 and the second connecting boss 12, the front end of the pivot 2 is located on the front side of the first connecting boss 11 and is connected with the front end of the swing assembly 4, the rear end of the pivot 2 is located on the rear side of the second connecting boss 12 and is connected with the rear end of the swing assembly 4, the limiting member 6 is located between the first connecting boss 11 and the second connecting boss 12, and one torsion spring 3 is arranged between the first connecting boss 11 and the front end of the swing assembly 4, and another torsion spring 3 is arranged between the second connecting boss 12 and the rear end of the swing assembly 4. In order to ensure the swing balance of the swing assembly 4.

[0042] Further, the front end of the swing assembly 4 and the rear end of the swing assembly 4 are each provided with a torsion spring seat for connecting the torsion spring 3, and the torsion spring seat is provided with a groove for embedding the torsion spring 3, so as to facilitate the installation and fixation of the torsion spring 3.

[0043] In some embodiments, the probe 5 is telescopic and / or pivotable relative to the swing assembly 4.

[0044] As shown in Figure 1 , Figure 4 and Figure 6As shown, the probe 5 is retractably movable in the up-down direction relative to the swing assembly 4 to avoid the surface protrusions of the component to be measured.

[0045] Meanwhile, the probe 5 is pivotable about the up-down direction relative to the swing assembly 4 to adjust the angle of the probe 5 relative to the swing assembly 4, and further adjust the angle of the probe 5 relative to the weld to meet the detection requirements.

[0046] In some embodiments, the swing assembly 4 comprises a swing bracket 41 and a probe bracket 42, one end of the probe bracket 42 is pivotably connected with the swing assembly 4 and has at least two detection positions relative to the swing assembly 4, and the other end of the probe bracket 42 is provided with the probe 5.

[0047] As shown in Figure 1 , Figure 4 and Figure 6 , the swing assembly 4 comprises the swing bracket 41 and the probe bracket 42, the swing bracket 41 is annular, and the front end and the rear end of the swing bracket 41 are respectively provided with torsion spring seats for connecting the torsion spring 3 and the pivot 2. The middle part of the swing bracket 41 between the front end and the rear end is arranged in the left-right direction apart from the pivot 2, thereby having a space for installing the probe 5.

[0048] The middle part of the swing bracket 41 is connected with the top end of the probe bracket 42, the bottom end of the probe bracket 42 is provided with the probe 5, and the probe bracket 42 is pivotable about the up-down direction relative to the swing assembly 4 and has at least two detection positions, preferably but not limited to three detection positions, so that the probe 5 has three detection positions with different included angles relative to the swing bracket 41 to meet the detection requirements of the weld.

[0049] Preferably, among the three detection positions, the middle detection position is located in the front-rear direction, and when the trolley 1 moves forward and backward, the probe 5 located in the middle detection position moves parallel to the weld and performs detection. The included angles α between the other two detection positions and the middle detection position are preferably but not limited to 70 degrees, when the trolley 1 moves forward, the probe 5 is located in one of the detection positions to form a 70-degree included angle with the weld and perform detection, and when the trolley 1 moves backward, the probe 5 is located in the other detection position to form a 70-degree included angle with the weld and perform detection, thereby meeting the detection requirements of the weld.

[0050] In some embodiments, the swing bracket 41 is provided with a mounting hole, the inner circumferential surface of the mounting hole is provided with at least two positioning grooves 411 arranged in the circumferential direction of the mounting hole, the positioning grooves 411 form openings in the wall surface of the swing bracket 41, and the positioning grooves 411 are used to form the detection positions. One end of the probe bracket 42 is arranged in the mounting hole of the swing bracket 41 and is movable in the axial direction of the mounting hole relative to the swing bracket 41, and the other end of the probe bracket 42 is provided with a positioning boss 421 which can be inserted into any positioning groove 411 through the opening.

[0051] As shown in Figure 1 , Figure 4 and Figure 6 , the middle part of the swing bracket 41 is provided with a mounting hole penetrating through it along the up-down direction, and the inner circumferential surface of the mounting hole is provided with three positioning grooves 411 arranged at intervals around the up-down direction, and the positioning grooves 411 preferably penetrate through the swing bracket 41 along the up-down direction to form openings on the top surface and the bottom surface of the swing bracket 41, and each positioning groove 411 forms a detection position.

[0052] The top end of the probe bracket 42 is inserted into the mounting hole of the swing bracket 41, and the probe bracket 42 is movable relative to the swing bracket 41 along the up-down direction, and the outer circumferential surface of the top end of the probe bracket 42 is provided with a positioning boss 421 extending a distance along the vertical direction, and the positioning boss 421 is arranged in the positioning groove 411 to limit the probe bracket 42 and the probe 5 at the corresponding detection position, and the positioning boss 421 can enter and exit the positioning groove 411 through the opening formed by the positioning groove 411 on the swing bracket 41, so that the positioning boss 421 can be switched between the three positioning grooves 411.

[0053] In some embodiments, the swing assembly 4 further comprises a first elastic member 43 and a snap ring 44, the first elastic member 43 is connected between the other end of the probe bracket 42 and the swing bracket 41, and the snap ring 44 is arranged at one end of the probe bracket 42 to stop the end of the swing assembly 4 away from the probe 5.

[0054] As shown in Figure 1 , Figures 5-7 , the probe bracket 42 comprises a rod body and a reverse U-shaped connecting frame connected in sequence from top to bottom, the probe 5 is arranged in the connecting frame, and the first elastic member 43 is preferably but not limited to sleeved on the outer circumference of the rod body of the probe bracket 42 and connected between the connecting frame of the probe bracket 42 and the swing bracket 41, and the rod body of the probe bracket 42 is provided with the snap ring 44 at the top, and the snap ring 44 abuts against the top surface of the swing bracket 41.

[0055] When the surface of the component to be measured has a protrusion, the protrusion pushes the probe 5 to move the probe bracket 42 upward, but the positioning boss 421 does not disengage from the positioning groove 411, at this time the first elastic member 43 plays a buffering role, and drives the probe bracket 42 and the probe 5 to reset when the probe 5 passes over the protrusion, and the snap ring 44 plays a limiting role on the probe bracket 42 to avoid the probe bracket 42 from disengaging downward from the swing bracket 41.

[0056] Further, the front and rear ends of the connecting frame are connected with the probe 5 through a pin shaft, and the distance L between the inner wall surface of the top of the connecting frame and the probe 5 is preferably but not limited to 1 millimeter, so that the probe 5 can be slightly rotated relative to the connecting frame around the front and rear directions, so as to facilitate the adhesion of the probe 5 and the non-planar features of the surface to be measured during detection.

[0057] In some embodiments, the trolley 1 comprises a trolley body 13 and a split seat 14, the split seat 14 is connected with the pivot 2 and the torsion spring 3, and at least one end of the trolley body 13 is detachably connected with a corresponding split seat 14.

[0058] As shown in Figure 4 and Figure 7 , the trolley 1 comprises a trolley body 13 and a split seat 14, the split seat 14 is detachably connected with the trolley body 13, the split seat 14 is provided with a first connecting boss 11 and a second connecting boss 12, and is connected with the pivot 2 and the torsion spring 3.

[0059] At least one end of the trolley body 13 is detachably connected with a corresponding split seat 14, in other words, at least one end of the trolley body 13 can be connected with a split seat 14. Therefore, the split seat 14 can be arranged at different ends of the trolley body 13, the trolley body 13 can be provided with a split seat 14 at one end, or can be provided with split seats 14 at at least two ends. Preferably, both left and right ends of the trolley body 13 can be connected with split seats 14.

[0060] In some embodiments, the trolley 1 further comprises a limiting assembly 15, the limiting assembly 15 is arranged on the trolley body 13 and can be extended and retracted relative to the trolley body 13, the trolley body 13 is provided with a plug-in boss 131 arranged in a spaced manner with the limiting assembly 15, the split seat 14 is detachably connected with the plug-in boss 131 in a plug-in manner, and the limiting assembly 15 is used to abut against one end of the split seat 14 away from the plug-in boss 131.

[0061] As shown in Figure 7 , both left and right ends of the trolley body 13 are provided with a limiting assembly 15 and a plug-in boss 131 arranged in sequence from top to bottom, the end of the limiting assembly 15 can be extended and retracted from the trolley body 13 in the left-right direction, the plug-in boss 131 extends upward from the bottom of the trolley body 13 and is lower than the limiting assembly 15, and the split seat 14 is provided with a plug-in groove matched with the plug-in boss 131, so as to be detachably and plug-in arranged on the plug-in boss 131. During the process of mounting and dismounting the split seat 14, the split seat 14 abuts against the limiting assembly 15 to make the limiting assembly 15 retract, and after the split seat 14 is mounted, the limiting assembly 15 extends and abuts against the top of the split seat 14, so as to avoid that the split seat 14 is accidentally disengaged from the trolley 1.

[0062] In some embodiments, the limiting assembly 15 comprises a second elastic member 151 and a ball 152, the trolley 1 is provided with an assembly hole, the second elastic member 151 and the ball 152 are both arranged in the assembly hole, and the second elastic member 151 is located between the bottom surface of the assembly hole and the ball 152, and part of the ball 152 can be extended from the assembly hole and abut against the split seat 14.

[0063] As shown in Figure 7As shown, the wall surface of the trolley 1 is provided with an assembly hole extending along the left-right direction, the second elastic member 151 and the ball 152 are both arranged in the assembly hole, and the second elastic member 151 is located between the hole bottom surface of the assembly hole and the ball 152, the ball 152 can be partially extended from the assembly hole under the drive of the second elastic member 151 to abut against the top of the split seat 14, and the ball 152 can compress the second elastic member 151 and retract into the assembly hole under the external force along the left-right direction. The inner diameter of the opening end of the assembly hole decreases from inside to outside to prevent the ball 152 from being separated from the assembly hole.

[0064] In some embodiments, the trolley 1 further comprises a connected encoder 16 and a wheel 17, and the encoder 16 and the wheel 17 are both arranged in the trolley body 13.

[0065] As shown, Figure 8 The bottom of the trolley body 13 is provided with four wheels 17, one of which is connected with the encoder 16 arranged in the trolley body 13 to calibrate through the encoder 16, preferably, the trolley body 13 is provided with a mounting seat for mounting the encoder 16, and a pressing plate connected with the mounting seat and pressed on the top of the encoder 16.

[0066] The trolley 1 is preferably but not limited to manually pushed, and the outer portion of the trolley body 13 is provided with a groove for personnel to hold.

[0067] Preferably, the middle portion of the wheel 17 is provided with an O-ring which is protruded from the outer circumferential surface of the wheel 17 to ensure reliable contact of the wheel 17 with the surface to be measured and to prevent the wheel 17 from slipping.

[0068] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0069] In addition, the terms "first" and "second" are only used for differentiation and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0071] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0072] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A weld seam detection apparatus, characterized by, The utility model provides a kind of probe, including: trolley (1), pivot (2), torsion spring (3), swing assembly (4) and probe (5), the swing assembly (4) is pivotably connected with the trolley (1) by the pivot (2), the torsion spring (3) is sleeved in the outer periphery of the pivot (2), and is connected between the swing assembly (4) and the trolley (1), the probe (5) is connected with the swing assembly (4). Further comprising limiting piece (6), the limiting piece (6) is connected in the outer peripheral surface of the pivot (2), the pivot (2) is fixed compared with the swing assembly (4) position, and pivotably connected with the trolley (1), the limiting piece (6) is used to stop the trolley (1) to limit the pivot angle of the swing assembly (4) relative to the trolley (1).

2. The weld seam detection apparatus according to claim 1, characterized in that The trolley (1) has first connecting boss (11) and second connecting boss (12), the pivot (2) is arranged in the first connecting boss (11) and the second connecting boss (12), the limiting piece (6) is located between the first connecting boss (11) and the second connecting boss (12), and the first connecting boss (11) is connected with one end of the swing assembly (4), and the second connecting boss (12) is connected with the other end of the swing assembly (4), and the corresponding torsion spring (3) is arranged between the first connecting boss (11) and the second connecting boss (12).

3. The weld seam detection apparatus according to claim 2, characterized in that The probe (5) is telescopic and / or pivotable relative to the swing assembly (4).

4. The weld seam detection apparatus according to claim 1, characterized in that, The swing assembly (4) includes swing bracket (41) and probe bracket (42), one end of the probe bracket (42) is pivotably connected with the swing assembly (4), and has at least two detection positions relative to the swing assembly (4), and the other end of the probe bracket (42) is provided with the probe (5).

5. The weld seam detection apparatus according to claim 4, characterized in that The swing bracket (41) is provided with a mounting hole, and an inner circumferential surface of the mounting hole is provided with at least two positioning grooves (411) arranged at intervals in a circumferential direction of the mounting hole, the positioning grooves (411) form openings in a wall surface of the swing bracket (41), and the positioning grooves (411) are used to form the detection positions.

6. The weld seam detection apparatus according to claim 5, characterized in that One end of the probe bracket (42) is arranged in the mounting hole of the swing bracket (41), and is movable relative to the swing bracket (41) in an axial direction of the mounting hole, and one end of the probe bracket (42) is provided with a positioning boss (421), which can be inserted into any positioning groove (411) through the opening. The swing assembly (4) further comprises a first elastic member (43) and a snap ring (44), the first elastic member (43) is connected between the other end of the probe bracket (42) and the swing bracket (41), and the snap ring (44) is arranged at one end of the probe bracket (42) and used to abut against one end of the swing assembly (4) away from the probe (5).

7. The weld seam detection apparatus according to claim 6, characterized in that The trolley (1) includes a vehicle body (13) and a split seat (14), the split seat (14) is connected with the pivot (2) and the torsion spring (3), and at least one end of the vehicle body (13) is detachably connected with a corresponding split seat (14).

8. The weld seam detection apparatus according to claim 1, characterized in that, ​ 9. The weld seam detection apparatus according to claim 8, characterized in that The trolley (1) further comprises a limiting assembly (15) arranged on the trolley body (13) and capable of extending and retracting relative to the trolley body (13), the trolley body (13) is provided with a plug-in boss (131) arranged in a spaced manner with the limiting assembly (15), the split seat (14) is detachably connected with the plug-in boss (131) in a plug-in manner, and the limiting assembly (15) is used for abutting against one end of the split seat (14) away from the plug-in boss (131).

10. The weld seam detection apparatus according to claim 9, characterized in that The limiting assembly (15) comprises a second elastic member (151) and a ball (152), the trolley (1) is provided with an assembly hole, the second elastic member (151) and the ball (152) are arranged in the assembly hole, and the second elastic member (151) is located between the bottom surface of the assembly hole and the ball (152), part of the ball (152) can extend out of the assembly hole and abut against the split seat (14); and / or The trolley (1) further comprises a connected encoder (16) and a wheel (17), and the encoder (16) and the wheel (17) are arranged on the trolley body (13).

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