Casting impact strength detection device

Abstract

The utility model discloses a device for detecting the impact strength of a casting, relates to the technical field of casting detection, and aims to solve the problems that the impact strength cannot be accurately mastered when the impact strength of the casting is detected, so that the detection result has larger error and is not accurate enough. An air pressure tank is arranged on the working table, an air compressor is communicated with the air pressure tank, an electromagnetic valve is installed on an outlet of the air pressure tank, a horizontally-placed air pipe is communicated with an outlet of the electromagnetic valve, an impact rod is connected into the air pipe in a sliding mode, and the impact rod and the air pipe are coaxially arranged; one end of the impact rod extends out of the air pipe from the end, away from the air pressure tank, of the air pipe, an air blocking cap is arranged at the other end of the impact rod, and the diameter of the air blocking cap is set to be the same as the inner diameter of the air pipe. The carrier is arranged on the side, away from the air pressure tank, of the air pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of casting detection, and specifically relates to a casting impact strength detection device. BACKGROUND

[0002] Casting is a method of pouring liquid metal into a casting cavity adapted to the shape of a part, and obtaining a corresponding shaped casting after cooling and solidification. After pouring, the casting needs to be subjected to corresponding performance detection to ensure the quality of the casting.

[0003] Impact strength is one of the properties that need to be detected before the casting is shipped. The impact strength can directly reflect the brittleness and toughness of the product. Currently, when the impact resistance of the casting is detected, it is usually manually operated. The worker uses a knocking tool or a steel ball to apply an impact force to the casting, and then records the deformation of the casting to obtain the impact strength of the casting. However, when the detection is performed manually, the impact force and the impact position cannot be accurately grasped, and therefore, the detected impact strength has a large error and is not accurate enough. Moreover, if the impact force is small, the deformation of the casting is also small, and it is difficult to be observed by the naked eye, and therefore, the corresponding characteristics cannot be detected. SUMMARY

[0004] To solve the above problems, that is, when the impact strength of the casting is detected, the impact force cannot be accurately grasped, resulting in a large error in the detection result and a lack of accuracy, the utility model provides a casting impact strength detection device. The device includes a workbench, an air tank disposed on the workbench, an air compressor connected to the air tank, an electromagnetic valve installed at the outlet of the air tank, a horizontally placed air pipe connected to the outlet of the electromagnetic valve, an impact rod slidingly connected in the air pipe, the impact rod being coaxially arranged with the air pipe, one end of the impact rod extending out of the air pipe from the end of the air pipe away from the air tank, a gas blocking cap disposed at the other end of the impact rod, the diameter of the gas blocking cap being the same as the inner diameter of the air pipe, a carrier disposed on the workbench, and the carrier being disposed on the side of the air pipe away from the air tank.

[0005] By adopting the above technical solution, the air compressor can charge a certain pressure of compressed air into the air tank to maintain a certain air pressure value in the air tank. Then, at the moment when the electromagnetic valve is opened, the air pressure in the air tank will push the gas blocking cap to drive the impact rod to impact, thereby achieving the purpose of impacting the casting on the carrier. By controlling the pressure value in the air tank by the air compressor, the impact force of the impact rod on the casting and the position of the impact on the casting can be accurately grasped, and therefore, the detection result is more accurate.

[0006] The utility model discloses further provide: the gas pipe is provided with the inner flanging at one end of gas pressure tank, the impact lever is provided with the clamping portion, the clamping portion sets up the outside of gas pipe, the diameter of clamping portion is greater than the diameter setting of inner flanging.

[0007] Through adopting above technical scheme, when the impact lever moves towards the direction of gas pressure tank, the inner flanging can be clamped with the clamping portion, avoiding the impact lever too much to enter into the gas pipe, and the inner flanging can also be clamped with the gas blocking cap, avoiding the impact lever being pushed out of the gas pipe.

[0008] The utility model discloses further provide: the inside of gas pipe is provided with spring, the spring is sleeved on the impact lever, and one end of spring is located on the gas blocking cap, and the other end of spring is located on the inner flanging.

[0009] Through adopting above technical scheme, the spring can reset the impact lever, and the spring can reset the impact lever after the impact lever impacts once.

[0010] The utility model discloses further provide: still be provided with the sliding slot one on the work table, the sliding slot one is perpendicular to gas pipe setting, and the object carrier is slidably connected on the sliding slot one.

[0011] Through adopting above technical scheme, the object carrier can drive the casting to slide along the sliding slot one, and then the part of casting that is impacted can be adjusted.

[0012] The utility model discloses further provide: the metal flaw detector is installed on the work table, and the detection probe of metal flaw detector is towards the sliding slot setting.

[0013] Through adopting above technical scheme, the metal flaw detector can detect the flaw of casting on the object carrier, and after the impact lever impacts the casting, the internal structure of casting impact part can be explored through the metal flaw detector, and then the change of internal structure of casting after impact can be obtained, that is, the impact strength of casting can be obtained.

[0014] The utility model discloses further provide: be provided with fixed plate on the work table, be provided with the sliding slot two on the fixed plate, the sliding slot two is perpendicular to the sliding slot one setting, and the detection probe is slidably connected in the sliding slot two.

[0015] Through adopting above technical scheme, the detection probe can detect the casting more comprehensively, and then the impact of metal internal can be more fully understood.

[0016] The utility model discloses further provide: the gas pressure tank is connected with the pressure relief valve.

[0017] By adopting the technical scheme, the pressure relief valve can relieve pressure in the air pressure tank, thereby ensuring safety of the air pressure tank in use, and the pressure relief valve can also relieve the air pressure tank to normal pressure after detection is completed.

[0018] The utility model discloses further provide for: the support frame is connected with the support plate for preventing the support frame from toppling over on the side surface of the trachea away from, the support plate sets up as right triangle.

[0019] By adopting the technical scheme, the support plate can avoid the support frame from toppling over due to too large impact force when being impacted.

[0020] The utility model discloses the beneficial effect that:

[0021] 1. The air compressor can fill certain compressed gas into the air pressure tank, so that the air pressure tank maintains a certain air pressure value, and then the air pressure in the air pressure tank pushes the impact rod to impact the castings on the support frame, and the impact force generated by the impact rod can be obtained according to the air pressure value in the air pressure tank, so that the impact force and impact position of the castings can be accurately grasped, and the detection result is more accurate.

[0022] 2. The metal flaw detector can detect the castings more comprehensively by cooperating with the sliding groove. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure of the utility model is shown.

[0024] Figure 2 The A-A sectional view is shown.

[0025] Figure 3 The local enlarged view of A is shown.

[0026] Reference signs: 1, workbench; 11, fixed block; 2, air pressure tank; 21, electromagnetic valve; 22, U-shaped frame; 3, air compressor; 4, air pipe; 41, impact rod; 411, gas blocking cap; 412, clamping part; 42, spring; 43, inner flange; 5, metal flaw detector; 51, detection probe; 6, sliding groove one; 7, support frame; 71, support plate; 8, fixed plate; 81, sliding groove two; 9, pressure relief valve. DETAILED DESCRIPTION

[0027] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0028] The utility model provides a kind of casting impact strength detection device, including workbench 1, workbench 1 is provided with air tank 2, air tank 2 is clamped on workbench 1 by two U-shaped frames 22. Air tank 2 is communicated with air compressor 3 on the side wall by pipeline, air compressor 3 is arranged below workbench 1, air compressor 3 is used to fill compressed gas into air tank 2, so that air tank 2 reaches certain air pressure value. Stop valve is installed on the pipeline that air compressor 3 is communicated with air tank 2, to control the communication of air compressor 3 and air tank 2.

[0029] The outlet of air tank 2 is arranged at one end of air tank 2, electromagnetic valve 21 is installed on the outlet of air tank 2, electromagnetic valve 21 is used to control the switch of air tank 2 outlet, the outlet of electromagnetic valve 21 is communicated with air pipe 4, air pipe 4 is arranged parallel to the table top of workbench 1. Sealing pad is arranged between air pipe 4 and electromagnetic valve 21, to ensure the sealing between electromagnetic valve 21 and air pipe 4. The upper table of workbench 1 is welded with fixed block 11 perpendicular to air pipe 4, air pipe 4 is arranged in fixed block 11, to ensure the stability of air pipe 4.

[0030] Impact rod 41 is slidably connected in air pipe 4, impact rod 41 is coaxially arranged with air pipe 4, one end of impact rod 41 is arranged out of air pipe 4 from the end of air pipe 4 away from air tank 2, the other end of impact rod 41 is integrally provided with air resistance cap 411, the diameter of air resistance cap 411 is arranged to be the same as the inner diameter of air pipe 4, when electromagnetic valve 21 is opened, the air pressure in air tank 2 will directly act on air resistance cap 411, to realize the purpose of pushing impact rod 41.

[0031] Workbench 1 is also provided with carrier 7, carrier 7 is arranged as "L" type, carrier 7 is arranged on the side of air pipe 4 away from air tank 2, carrier 7 is used to place casting, after casting is placed on carrier 7, it can be fixed by rope, but the fixing mode of casting is not fixed, according to use condition, it can be adjusted appropriately.

[0032] The end of air pipe 4 away from air tank 2 is provided with inward flanging 43, inward flanging 43 cooperates with air resistance cap 411, to avoid impact rod 41 being pushed out of air pipe 4. Clamping portion 412 is integrally arranged on impact rod 41, the diameter of clamping portion 412 is arranged to be greater than the diameter of inward flanging 43, clamping portion 412 is arranged outside air pipe 4, so that impact rod 41 can not be inserted into air pipe 4 too much.

[0033] Through the cooperation of air resistance cap 411, clamping portion 412 and inward flanging 43, the displacement of impact rod 41 in air pipe 4 can be limited, to avoid impact rod 41 being pushed out too much or inserted more.

[0034] The inside of the air pipe 4 is provided with a spring 42, the spring 42 is sleeved on the impact rod 41, one end of the spring 42 abuts against the air blocking cap 411, the other end of the spring 42 abuts against the inner flange 43, and the spring 42 can reset the impact rod 41.

[0035] The workbench 1 is welded with a sliding groove one 6, the sliding groove one 6 is perpendicular to the air pipe 4, the object support 7 is slidably connected to the sliding groove one 6, so that the object support 7 can drive the casting to slide along the direction of the sliding groove one 6, thereby enabling different positions of the casting to be aligned with the impact rod 41, and achieving the purpose of adjusting the impact position of the casting.

[0036] The workbench 1 is also bolted with a metal flaw detector 5 for detecting the casting. The workbench 1 is welded with a fixed plate 8, the fixed plate 8 is perpendicular to the sliding groove one 6, the fixed plate 8 is provided with a sliding groove two 81 along the length direction thereof, the sliding groove two 81 is perpendicular to the sliding groove one 6, the detection probe 51 of the metal flaw detector 5 is slidably connected to the sliding groove two 81 and can be clamped and fixed by a nut, and the detection probe 51 is arranged towards the direction of the sliding groove one 6, when the object support 7 with the casting slides to the position of the detection probe 51 along the sliding groove one 6, the detection probe 51 can detect the casting and find out the internal condition of the casting, and then the change of the internal structure of the casting after impact is obtained, that is, the impact resistance of the metal is obtained.

[0037] The air pressure tank 2 is communicated with a pressure relief valve 9 at the end away from the electromagnetic valve 21, so as to protect the air pressure tank 2 from overpressure, and the inside of the air pressure tank 2 can maintain a normal pressure state when not detecting.

[0038] The object support 7 is welded with a support plate 71 on the side surface away from the air pipe 4, the support plate 71 is arranged as a right triangle, and the support plate 71 is provided with three, when the casting is impacted, the support plate 71 can support the object support 7, avoiding the problem of the object support 7 being tilted after being impacted.

[0039] It should be noted that when the air pressure in the air pressure tank 2 acts on the air blocking cap 411, the impact force generated is greater than the elastic force of the spring 42, so that the impact effect can be achieved, and when recording the impact force, the impact force generated by the air pressure in the air pressure tank 2 acting on the air blocking cap 411 needs to be reduced by the elastic force of the spring 42, which is the real impact pressure on the casting.

[0040] In summary, the utility model discloses through air compressor 3 can be filled into certain compressed gas in the air pressure tank 2, make the air pressure tank 2 maintain certain air pressure value, and then open electromagnetic valve 21, the air pressure in the air pressure tank 2 will push the impact lever 41 and impact the casting on the carrier 7, and according to the air pressure in the air pressure tank 2 can draw the impact force that the impact lever 41 impacts, and then can accurately grasp the impact degree of the casting, make the detection result more accurate.

[0041] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the utility model, and equivalent substitutions can be made to the components therein, in particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0042] In the description of the utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In addition, it also needs to be explained that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrally connected, can be mechanically connected, or can be electrically connected, can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0044] The term "includes" or any other similar term is intended to cover non-exclusive inclusion, so that the process, article or equipment / device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in the process, article or equipment / device.

[0045] The technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but the person skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. The person skilled in the art can make equivalent changes or replacements to the related technical features without deviating from the principles of the utility model, and the technical schemes after the changes or replacements will all fall within the protection scope of the utility model.

Claims

1. A device for testing the impact strength of castings, characterized in that: The device includes a workbench (1), on which a pressure tank (2) is mounted. An air compressor (3) is connected to the pressure tank (2). A solenoid valve (21) is installed at the outlet of the pressure tank (2). The outlet of the solenoid valve (21) is connected to a horizontally placed air pipe (4). An impact rod (41) is slidably connected inside the air pipe (4). The impact rod (41) is coaxially arranged with the air pipe (4). One end of the impact rod (41) extends out of the air pipe (4) from the end away from the pressure tank (2). The other end of the impact rod (41) is provided with an air-blocking cap (411). The diameter of the air-blocking cap (411) is set to be the same as the inner diameter of the air pipe (4). A shelf (7) is also provided on the workbench (1). The shelf (7) is located on the side of the air pipe (4) away from the pressure tank (2).

2. The casting impact strength testing device according to claim 1, characterized in that: The end of the air pipe (4) away from the pressure tank (2) is provided with an inner flange (43), and the impact rod (41) is provided with a snap-fit ​​part (412). The snap-fit ​​part (412) is located on the outside of the air pipe (4), and the diameter of the snap-fit ​​part (412) is larger than the diameter of the inner flange (43).

3. The casting impact strength testing device according to claim 2, characterized in that: A spring (42) is provided inside the air tube (4). The spring (42) is sleeved on the impact rod (41). One end of the spring (42) abuts against the air-blocking cap (411), and the other end of the spring (42) abuts against the inner flange (43).

4. The casting impact strength testing device according to claim 1, characterized in that: The workbench (1) is also provided with a slide groove (6), which is perpendicular to the air pipe (4), and the rack (7) is slidably connected to the slide groove (6).

5. The casting impact strength testing device according to claim 4, characterized in that: A metal flaw detector (5) is installed on the workbench (1), and the detection probe (51) of the metal flaw detector (5) is set towards the slide groove.

6. The casting impact strength testing device according to claim 5, characterized in that: A fixed plate (8) is provided on the workbench (1), and a second slide groove (81) is provided on the fixed plate (8). The second slide groove (81) is set perpendicular to the first slide groove (6), and the detection probe (51) is slidably connected in the second slide groove (81).

7. The casting impact strength testing device according to claim 1, characterized in that: The pressure tank (2) is connected to a pressure relief valve (9).

8. The casting impact strength testing device according to claim 1, characterized in that: The shelf (7) has a support plate (71) attached to the side surface away from the air pipe (4) to prevent the shelf (7) from tipping over. The support plate (71) is set as a right triangle.

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