Cavity profile welding quality inspection device

Abstract

The utility model discloses a cavity profile welding quality inspection device which comprises a support, the support comprises a bottom plate, supporting legs and a table top, the bottom plate and the table top are connected together through the supporting legs, a hydraulic air cylinder is arranged on the bottom plate, a supporting plate is welded to the fixed end of the hydraulic air cylinder, and the supporting plate and the lower end face of the table top are connected through a fixing frame. The telescopic end of the hydraulic air cylinder is fixedly connected with the lower end of the die connecting piece, the upper end of the die connecting piece is connected with the crevasse die, a containing groove is formed in the middle of the table top, a notch in the crevasse die extends out of the upper end face of the table top through the containing groove, and the left side and the right side of the containing groove in the upper end face of the table top are each provided with a first connecting piece. An L-shaped limiting piece is arranged on the first connecting piece, a second connecting piece with a connecting column is arranged at the position, close to the rear side of the containing groove, of the upper end face of the table top, and a second limiting piece is further arranged on the connecting column. According to the utility model, the accuracy of a weld seam groove test can be improved, and the welding quality can be accurately verified.

Description

Technical Field

[0001] The utility model relates to the field of industrial processing, and particularly relates to a device for inspecting the welding quality of cavity profiles. Background Art

[0002] The joints of hollow profiles used in rail transit need to be welded. Customers have specific requirements for the welding position and quality. Currently, the flaring test is used to verify the welding quality. However, the principle of the flaring test is to press a cone into the cavity, and the place where the cavity tears is not necessarily at the welding position, which is prone to causing damage and reducing the accuracy of the test, thus affecting the inspection efficiency. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is that in the prior art, the place where the cavity profile to be inspected tears is not necessarily at the welding position, resulting in a reduction in the accuracy of the test and affecting the inspection efficiency.

[0004] To solve the above technical problem, a technical solution provided by the utility model is: a device for inspecting the welding quality of cavity profiles, including a bracket, a notch die, and a limiting member. A hydraulic cylinder is arranged inside the bracket. The hydraulic cylinder is connected to the notch die through a die connecting member. The notch die is arranged in a movement channel, and the upper end of the notch die extends out of the upper end surface of the bracket. Limiting members are arranged on the upper end surface of the bracket around the circumference of the notch die.

[0005] Further, the bracket includes a bottom plate, support legs, and a tabletop. The bottom plate and the tabletop are connected together through the support legs. A support seat is arranged at one end of the support legs close to the ground.

[0006] Further, the hydraulic cylinder is arranged at the center position of the upper end surface of the bottom plate. The telescopic end of the hydraulic cylinder faces the tabletop. A support plate is arranged on the fixed end of the hydraulic cylinder. The support plate and the lower end surface of the tabletop are connected through a fixing frame.

[0007] Further, the hydraulic cylinder is connected to a hydraulic system, and the hydraulic system can be controlled by a switch.

[0008] Further, the upper end of the fixing frame is fixed to the lower end surface of the tabletop through a first screw, and the lower end is fixed to the support plate through a second screw.

[0009] Further, the die connecting member is arranged on the telescopic end of the hydraulic cylinder, and the other end of the die connecting member is connected to the notch die through a first bolt.

[0010] Further, the lower end of the mold connecting piece is fixed on the telescopic end of the hydraulic cylinder, and two hanging ears are arranged on the upper end. Second bolt holes are arranged at corresponding positions on the two hanging ears, and the distance between the two hanging ears matches the width of the movement channel.

[0011] A notch is arranged on the side of the upper part of the notch mold, and a first bolt hole is arranged on the lower part. The notch mold places its lower end between the two hanging ears, aligns the first bolt hole with the second bolt hole on the hanging ear, and connects the notch mold and the mold connecting piece through the first bolt hole and the second bolt hole using the first bolt. After the telescopic end of the hydraulic cylinder extends, the notch on the notch mold extends out of the upper end surface of the tabletop.

[0012] Further, the notch is an area for placing the position to be detected of the cavity profile, and the breaking wall at the upper end of the notch is aligned with the weld position.

[0013] Further, a placement groove for placing the notch mold is arranged at the middle position of the tabletop. A limiting plate is arranged on each side of the placement groove on the lower end surface of the tabletop. A movement channel is formed between the two limiting plates. The center line of the movement channel and the center line of the placement groove are on the same vertical line. The two limiting plates are fixed on the lower end surface of the tabletop through third screws.

[0014] Further, the width of the placement groove is greater than the width of the movement channel, and the notch mold can move freely up and down in the movement channel.

[0015] Further, the limiting member includes a first limiting member. There are two first limiting members, which are respectively arranged on the first connecting pieces on the left and right sides of the placement groove on the upper end surface of the tabletop. The first connecting pieces are fixed on the tabletop, and adjustable fixing holes are arranged on the first connecting pieces.

[0016] The first limiting member is an L-shaped limiting member, and a positioning hole is arranged on the L-shaped limiting member. The L-shaped limiting member is fixed on the first connecting piece through the positioning hole and the adjustable fixing hole using a second bolt, and is used to limit and fix the cavity profile left and right when the notch mold is working.

[0017] Further, the limiting member further includes a second limiting member. A second connecting piece is arranged at a position near the rear side of the placement groove on the upper end surface of the tabletop. A connecting column is arranged on the second connecting piece, and the second limiting member is arranged on the connecting column.

[0018] Further, a third bolt hole is provided on the second connecting piece. One lower flank is provided on each of the left and right sides of the lower end of the connecting column. A fourth bolt hole is provided on the lower flank. The connecting column is fixed on the second connecting piece by the third bolt hole and the fourth bolt hole using a third bolt.

[0019] One upper flank is provided on each of the left and right sides of the upper end of the connecting column. A fifth bolt hole is provided on the upper flank.

[0020] The second limiting member includes an upper connecting plate, a screw rod, and a lower connecting plate. One side of the upper connecting plate is connected to the connecting column.

[0021] Further, a sixth bolt hole is provided on one side of the upper connecting plate. The upper connecting plate is fixed on the connecting column by the sixth bolt hole and the fifth bolt hole using a fourth bolt.

[0022] An upper screw hole penetrating up and down is provided on the upper connecting plate. A lower screw hole is provided on the upper end surface of the lower connecting plate. One end of the screw rod passes through the upper screw hole and is connected to the lower connecting plate through the lower screw hole. The lower end surface of the lower connecting plate is in contact connection with the upper end surface of the cavity profile to be detected, and is used for limiting and fixing the upper end surface of the cavity profile.

[0023] The beneficial effects of the present utility model are as follows:

[0024] 1. In this device, the notch is used to accurately align the weld seam on the cavity profile that needs to be inspected, and then the hydraulic system is used to pull down the beveling die, which is convenient for accurately damaging the weld seam with the beveling die, improving the accuracy of the test, improving the inspection efficiency, accurately verifying the welding quality, and enabling the product to meet the requirements of customers.

[0025] 2. In this device, the first limiting member is used to position the profile left and right, and the second limiting member is used to position the profile above, so that effective fixation can be achieved in three directions, preventing the profile from popping out after the hydraulic system applies downward pressure, causing potential safety hazards, and improving its safety.

[0026] In order to make the above and other purposes, features, and advantages of the present utility model more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are only two of the drawings of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Schematic diagram of the first embodiment in this device;

[0029] Figure 2 Diagram of the positional relationship of components on the tabletop in this device;

[0030] Figure 3 is Figure 2 Schematic diagram of the A direction after cutting along a in

[0031] Figure 4 Diagram of the positional relationship between the notch die and the tabletop in this device;

[0032] Figure 5 Schematic diagram of the structure of the L-shaped limiting part in this device;

[0033] Figure 6 Schematic diagram of the structure of the connecting column in this device;

[0034] Figure 7 Schematic diagram of the second embodiment in this device;

[0035] Figure 8 Schematic diagram of the structure between the second limiting part and the connecting column in the second embodiment of this device;

[0036] Figure 9 is Figure 8 Exploded schematic diagram of.

[0037] In the figure, 1 - bottom plate, 2 - support leg, 3 - tabletop, 4 - support seat, 5 - hydraulic cylinder, 6 - support plate, 7 - fixing frame, 8 - first screw, 9 - second screw, 10 - die connecting piece, 11 - notch die, 12 - notch, 13 - first bolt hole, 14 - first bolt, 15 - placement groove, 16 - limiting plate, 17 - limiting plate, 18 - first connecting piece, 19 - adjustable fixing hole, 20 - L-shaped limiting part, 21 - positioning hole, 22 - second connecting piece, 23 - connecting column, 24 - third bolt hole, 25 - lower flank, 26 - fourth bolt hole, 27 - upper flank, 28 - fifth bolt hole, 29 - second limiting part, 29-1 - upper connecting plate, 29-2 - screw rod, 29-3 - lower connecting plate, 29-4 - upper screw hole, 29-5 - lower screw hole, 30 - sliding groove, 31 - cavity profile. Detailed implementation manners

[0038] Embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present utility model. It should be understood that the drawings and embodiments of the present utility model are only for illustrative purposes and are not used to limit the protection scope of the present utility model.

[0039] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The names of the messages or information exchanged between multiple devices in the embodiments of the present utility model are only for illustrative purposes and are not used to limit the scope of these messages or information. Embodiment 1

[0041] As Figures 1-6 shown, a cavity profile welding quality inspection device includes a bracket, a notch die 11, and a limiting member. The bracket includes a bottom plate 1, support legs 2, and a tabletop 3. The bottom plate 1 and the tabletop 3 are connected together by the support legs 2. A support seat 4 is provided at one end of the support legs 2 close to the ground.

[0042] A hydraulic cylinder 5 is provided at the center position of the upper end surface of the bottom plate 1. The telescopic end of the hydraulic cylinder 5 faces the tabletop 3. A support plate 6 is welded to the fixed end of the hydraulic cylinder 5. The support plate 6 and the lower end surface of the tabletop 3 are connected by a fixing frame 7.

[0043] The upper end of the fixing frame 7 is fixed to the lower end surface of the tabletop 3 by a first screw 8, and the lower end is fixed to the support plate 6 by a second screw 9.

[0044] The telescopic end of the hydraulic cylinder 5 is fixedly connected to the lower end of the die connecting member 10. Two hanging ears are provided at the upper end of the die connecting member 10, and second bolt holes are provided at corresponding positions on the two hanging ears.

[0045] A notch 12 is provided on the side of the upper part of the breakage die 11, and a first bolt hole 13 is provided on the lower part. The breakage die 11 has its lower end disposed between two hanging ears. The first bolt hole 13 is aligned with the second bolt hole on the hanging ear, and the breakage die 11 is connected to the die connecting member 10 by the first bolt 14 through the first bolt hole 13 and the second bolt hole. After the telescopic end of the hydraulic cylinder 5 extends, the notch 12 on the breakage die 11 extends above the upper end surface of the table 3.

[0046] A placement groove 15 for placing the breakage die 11 is provided at the middle position of the table 3. The notch 12 on the breakage die 11 extends above the upper end surface of the table 3 through the placement groove 15.

[0047] On the lower end surface of the table 3, one limiting plate 16 is provided on each side of the placement groove 15. A movement channel is formed between the two limiting plates 16. The center line of the movement channel and the center line of the placement groove 15 are on the same vertical line. The two limiting plates 16 are fixed to the lower end surface of the table 3 by the third screw 17.

[0048] The upper end of the breakage die 11 extends above the upper end surface of the table 3 after passing through the movement channel and the placement groove 15, and the breakage die 11 can move freely up and down within the movement channel and the placement groove 15.

[0049] On each side of the placement groove 15 on the upper end surface of the table 3, one first connecting piece 18 is provided. An adjustable fixing hole 19 is provided on the first connecting piece 18. A positioning hole 21 is provided on the L-shaped limiting member 20. The L-shaped limiting member 20 is fixed to the first connecting piece 18 by the second bolt through the positioning hole 21 and the adjustable fixing hole 19. The L-shaped limiting member 20 is used to limit and fix the cavity profile 31 left and right when the breakage die 11 is working.

[0050] At a position on the upper end surface of the table 3 near the rear side of the placement groove 15, a second connecting piece 22 is provided. A connecting column 23 is provided on the second connecting piece 22.

[0051] A third bolt hole 24 is provided on the second connecting piece 22. On each side of the lower end of the connecting column 23, one lower flank 25 is provided. A fourth bolt hole 26 is provided on the lower flank 25. The connecting column 23 is fixed to the second connecting piece 22 by the third bolt through the third bolt hole 24 and the fourth bolt hole 26.

[0052] On each side of the upper end of the connecting column 23, one upper flank 27 is provided. A fifth bolt hole 28 is provided on the upper flank 27.

[0053] A hydraulic system is connected to the hydraulic cylinder 5, and the hydraulic system can be controlled by a switch.

[0054] The notch 12 is the placement area for the positions of the cavity profile 31 that need to be detected. Aligning the breaking wall at the upper end of the notch 12 with the weld position can improve the precise breaking of the welding seam by the notch die 11, enhance the precision and inspection efficiency of the test, and accurately verify the welding quality.

[0055] During operation, first place the welding position of the cavity profile 31 at the working position of the notch die 11, which is the notch 12. Then adjust the L-shaped limiters 20 on both sides so that the two sliding grooves 30 on the cavity profile 31 are exactly stuck on the L-shaped limiters 20 on both sides, enabling the breaking wall at the upper end of the notch 12 to accurately find the weld position without deviation, effectively fixing the cavity profile 31 in the left-right direction. Then activate the switch on the hydraulic system and press the downward button on the switch handle. The hydraulic cylinder 5 drives the notch die 11 to pull down, using the breaking wall to break the welding position, and then observe the fracture morphology to confirm the quality of the welding. Embodiment 2

[0056] As Figures 1-9 shown, the difference from Embodiment 1 is that a second limiter 29 is further provided on the connecting column 23. The second limiter 29 includes an upper connecting plate 29-1, a screw 29-2, and a lower connecting plate 29-3. A sixth bolt hole is provided on one side of the upper connecting plate 29-1, and it is fixed on the connecting column 23 through the sixth bolt hole and the fifth bolt hole 28 using a fourth bolt.

[0057] An upper screw hole 29-4 penetrating up and down is provided on the upper connecting plate 29-1. A lower screw hole 29-5 is provided on the upper end surface of the lower connecting plate 29-3. One end of the screw 29-2 passes through the upper screw hole 29-4 and is connected to the lower connecting plate 29-3 through the lower screw hole 29-5. The lower end surface of the lower connecting plate 29-3 is in contact connection with the upper end surface of the cavity profile 31 to be detected, for limiting and fixing the upper end surface of the cavity profile 31.

[0058] During operation, first place the welding position of the cavity profile 31 at the working position of the notch die 11, which is the notch 12. Then adjust the L-shaped limiters 20 on both sides so that the two sliding grooves 30 on the cavity profile 31 are exactly stuck on the L-shaped limiters 20 on both sides, enabling the breaking wall at the upper end of the notch 12 to accurately find the weld position without deviation. Then adjust the upper second limiter 29 so that the cavity profile 31 can be effectively fixed in both the left-right direction and the upper direction, preventing the cavity profile 31 from popping out after applying pressure and causing potential safety hazards. Then activate the switch on the hydraulic system and press the downward button on the switch handle. The hydraulic cylinder 5 drives the notch die 11 to pull down, using the breaking wall to break the welding position, and then observe the fracture morphology to confirm the quality of the welding.

[0059] Note that the above is only the preferred embodiment of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A hollow profile welding quality inspection device, comprising a bracket, a rupture mold and a limiter, characterized in that: A hydraulic cylinder is arranged in the bracket, and the hydraulic cylinder is connected to the rupture mold through a mold connector. The rupture mold is arranged in a motion channel, and the upper end of the rupture mold extends out of the upper end surface of the bracket. Limiting parts are arranged on the upper end surface of the bracket and located on the circumference of the rupture mold.

2. The hollow profile welding quality inspection device according to claim 1 is characterized in that: The bracket includes a base plate, supporting legs and a table top, the base plate and the table top are connected together through the supporting legs, the hydraulic cylinder is arranged at the center position of the upper end surface of the base plate, the telescopic end surface of the hydraulic cylinder faces the table top, a supporting plate is arranged on the fixed end of the hydraulic cylinder, and the supporting plate and the lower end surface of the table top are connected through a fixing frame.

3. The hollow profile welding quality inspection device according to claim 2 is characterized in that: The mold connecting piece is arranged on the telescopic end of the hydraulic cylinder, and the other end of the mold connecting piece is connected to the breaching mold through a first bolt.

4. The hollow profile welding quality inspection device according to claim 3 is characterized in that: A placement groove for placing the rupture mold is provided in the middle position of the table top, and a limit plate is provided on both sides of the placement groove on the lower end surface of the table top, and a movement channel is formed between the two limit plates, and the center line of the movement channel is on the same vertical line as the center line of the placement groove.

5. The hollow profile welding quality inspection device according to claim 4 is characterized in that: The width of the placement groove is greater than the width of the movement channel, and the breaching mold can move freely up and down in the movement channel.

6. The hollow profile welding quality inspection device according to claim 5 is characterized in that: The upper end portion of the rupture mold is provided with a notch on its side, and the lower end portion is provided with a first bolt hole. The rupture mold is connected to the mold connector via the first bolt hole thereon using the first bolt. After the telescopic end of the hydraulic cylinder is extended, the notch on the rupture mold extends out of the upper end surface of the table top.

7. The hollow profile welding quality inspection device according to claim 6 is characterized in that: The limiting member includes a first limiting member, two of which are provided, and the two first limiting members are respectively arranged on the first connecting pieces on the left and right sides of the placement groove on the end surface of the table top.

8. The hollow profile welding quality inspection device according to claim 7 is characterized in that: The limiting member also includes a second limiting member. A second connecting piece is arranged on the upper end surface of the table top near the rear side of the placement groove. A connecting column is arranged on the second connecting piece. The second limiting member is arranged on the connecting column.

9. The hollow profile welding quality inspection device according to claim 8, characterized in that: The first limiting member is an L-shaped limiting member, and is fixed to the first connecting piece by a second bolt.

10. A hollow profile welding quality inspection device according to claim 8 or 9, characterized in that: The second limiting member includes an upper connecting plate, a screw rod and a lower connecting plate, one side of the upper connecting plate is connected to the connecting column, the upper connecting plate is provided with an upper screw hole passing through the upper and lower parts, the upper end surface of the lower connecting plate is provided with a lower screw hole, one end of the screw rod passes through the upper screw hole and is connected to the lower connecting plate through the lower screw hole, and the lower end surface of the lower connecting plate is in contact and connected with the upper end surface of the detected cavity profile.

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