Flaw detector for piston rod machining

Abstract

The utility model discloses a flaw detector for processing a piston rod, which relates to the technical field of flaw detectors, and comprises a host and a detection probe, a protection mechanism is arranged outside the detection probe, and the protection mechanism comprises a protection film adhered to the end part of the detection probe, a protection ring mounted outside the detection probe and a telescopic assembly; through the designed protection mechanism, the probability that the end part and the outer wall of the detection probe directly collide with the piston rod or other external objects to be damaged can be reduced in the process that an operator holds the detection probe by hand to move to carry out flaw detection on the piston rod in use, so that the service life of the detection probe is prolonged; in addition, the external arc-shaped buffer rubber can also play a buffer role when colliding with the piston rod or other external objects, so that collision marks caused to the piston rod or other external objects are reduced, and the service life of the detection probe in the diagnostic machine is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of flaw detector technology, specifically a flaw detector for piston rod processing. Background Technology

[0002] The piston rod in a car is a crucial transmission component in a car engine. It drives the crankshaft to rotate and transmits the pressure of the combustion gases to the crankshaft to output power. During the manufacturing process, a flaw detector is used to inspect the piston rod for internal defects such as cracks and small holes, thereby improving the quality of the piston rod before it leaves the factory.

[0003] In existing technology, the plug of the detection probe is inserted into the slot in the host to connect the detection probe to the host. Then, the detection probe is held and its end is moved to contact the piston rod surface for detection. However, during the detection process, the end and outer wall of the detection probe are prone to collision with the piston rod surface or other objects, resulting in damage to the end and outer wall of the piston rod and reducing the service life of the detection probe. To address this issue, we propose a flaw detector for piston rod processing. Utility Model Content

[0004] The purpose of this utility model is to provide a flaw detector for piston rod processing, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flaw detector for piston rod processing, comprising a main unit and a detection probe, wherein a protective mechanism is provided on the outside of the detection probe, the protective mechanism comprising a protective film pasted on the end of the detection probe, a protective ring installed on the outside of the detection probe, and a telescopic component;

[0006] The protective ring is fixedly provided with two sets of first arc-shaped male and female stickers, and a second arc-shaped male and female sticker is pasted on the outer wall of the first arc-shaped male and female stickers. An arc-shaped buffer rubber is fixedly provided on the outer side of the second arc-shaped male and female stickers.

[0007] Preferably, the telescopic assembly includes multiple sets of insertion posts fixed to the outside of the detection probe and a side ring fixed to one end of the insertion posts. Multiple sets of fixing rings are fixedly arranged on the side ring, and multiple sets of side plates are fixedly arranged on one side of the protective ring. A movable rod is fixedly arranged on the side of the side plate.

[0008] Preferably, a connecting spring is sleeved on the outside of the moving rod, and an external thread is provided on the outer side of the end of the moving rod, with a nut ring connected to the outside of the external thread by a thread.

[0009] Preferably, the inner wall of the protective ring is provided with multiple sets of sliding grooves, and the other end of the insert is inserted into the interior of the sliding grooves.

[0010] Preferably, a data cable is fixedly provided on the side of the detection probe, and a plug is fixedly provided at the end of the data cable. A slot is provided on the top of the host, and a connector is provided between the plug and the host. The connector includes a column fixed on the top of the host and a disc fixed outside the plug. A through groove is provided inside the disc for the top of the column to pass through.

[0011] Preferably, the column has a groove inside, a limiting post is provided inside the groove, and an installation spring is fixedly provided between the other end of the limiting post and the inner wall of the groove.

[0012] Preferably, the front of the host is provided with a display screen and operation buttons, and the host is provided with a rechargeable battery.

[0013] Preferably, the back of the main unit is provided with a diagonal support frame, and the top of the diagonal support frame is rotatably connected to the main unit via a pivot.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) Through the designed protective mechanism, this utility model can reduce the probability of the end and outer wall of the detection probe directly hitting and damaging the piston rod or other external objects when the operator moves the detection probe to detect flaws. This extends the service life of the detection probe. Moreover, the external arc-shaped buffer rubber can also play a buffering role when it hits the piston rod or other external objects, reducing the impact marks on the piston rod or other external objects and improving the service life of the detection probe in the flaw detector.

[0016] (2) The present invention can further fix the plug inserted into the slot by the designed connector, increase the stability of the connection, reduce the probability that the plug inserted into the slot will be pulled out of the slot due to external force during use, and improve the stability of the flaw detector for piston rod detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged structural diagram of section A in the middle;

[0019] Figure 3 This is a partial cross-sectional view of the column structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the protective mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the protective ring structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the insert post and side ring structure of this utility model;

[0023] Figure 7 This is a schematic cross-sectional view of the nut ring structure of this utility model;

[0024] Figure 8 This is a partial cross-sectional view of the protective ring of this utility model;

[0025] In the diagram: 100, Main unit; 101, Data cable; 102, Detection probe; 103, Plug; 104, Slot; 200, Arc-shaped buffer rubber; 201, Side ring; 202, Insert post; 203, Moving rod; 204, Protective ring; 205, First arc-shaped female and male connector; 206, Second arc-shaped female and male connector; 207, Fixing ring; 208, Nut ring; 209, Connecting spring; 210, Side plate; 211, Protective film; 212, External thread; 300, Disc; 301, Column; 302, Limiting post; 303, Mounting spring; 304, Through slot. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Example 1

[0028] Please see Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 This utility model provides a technical solution: a flaw detector for piston rod processing, including a main unit 100 and a detection probe 102. The detection probe 102 is provided with a protective mechanism on its exterior. The protective mechanism includes a protective film 211 pasted on the end of the detection probe 102, a protective ring 204 installed on the exterior of the detection probe 102, and a telescopic component. The protective film 211 is pasted on the right end surface of the detection probe 102 to protect the right end surface of the detection probe 102. The telescopic component is provided on the exterior of the detection probe 102 for the protective ring 204 to move in the left and right directions.

[0029] The protective ring 204 is externally fixed with two sets of first arc-shaped male and female adhesive strips 205. The outer wall of the first arc-shaped male and female adhesive strips 205 is attached with a second arc-shaped male and female adhesive strip 206. The outer wall of the second arc-shaped male and female adhesive strip 206 is externally fixed with an arc-shaped buffer rubber 200. When the arc-shaped buffer rubber 200 is worn or damaged after long-term use, it can be replaced. When replacing, the second arc-shaped male and female adhesive strip 206 on the arc-shaped buffer rubber 200 is peeled off from the first arc-shaped male and female adhesive strip 205, and then a new second arc-shaped male and female adhesive strip 206 and arc-shaped buffer rubber 200 are installed. The replacement is convenient.

[0030] The telescopic assembly includes multiple sets of insertion posts 202 fixed to the outside of the detection probe 102 and a side ring 201 fixed to one end of the insertion post 202. Multiple sets of fixing rings 207 are fixedly provided on the side ring 201. Multiple sets of side discs 210 are fixedly provided on one side of the protective ring 204. A moving rod 203 is fixedly provided on the side of the side disc 210. The moving rod 203 can reciprocate inside the fixing ring 207, and the end of the moving rod 203 passes through the inside of the fixing ring 207.

[0031] A connecting spring 209 is sleeved on the outside of the moving rod 203. An external thread 212 is provided on the outer side of the end of the moving rod 203. A nut ring 208 is threadedly connected to the outside of the external thread 212. The moving rod 203 and the protective ring 204 can be disassembled and assembled by unscrewing the nut ring 208 outward and then moving the protective ring 204 and the moving rod 203 to the right.

[0032] The inner wall of the protective ring 204 has multiple sets of sliding grooves, and the other end of the insert post 202 is inserted into the interior of the sliding groove.

[0033] This utility model, through its designed protective mechanism, reduces the likelihood of the end and outer wall of the detection probe 102 directly colliding with the piston rod or other external objects during the operation of the piston rod by the operator holding and moving the probe 102 for flaw detection. This extends the service life of the detection probe 102. Furthermore, the external arc-shaped buffer rubber 200 also provides a buffering effect when it collides with the piston rod or other external objects, reducing impact marks on the piston rod or other external objects and further improving the service life of the detection probe 102 in the flaw detector.

[0034] Example 2

[0035] Please refer to Example 1. Figures 1-4A data cable 101 is fixedly installed on the side of the detection probe 102, and a plug 103 is fixedly installed at the end of the data cable 101. A slot 104 is opened on the top of the host 100, and the bottom of the plug 103 passes into the interior of the slot 104. A connector is provided between the plug 103 and the host 100. The connector includes a column 301 fixed on the top of the host 100 and a disc 300 fixed on the outside of the plug 103. A through groove 304 is opened inside the disc 300 for the top of the column 301 to pass through.

[0036] The column 301 has a slot inside, and a limiting post 302 is installed inside the slot. One end of the limiting post 302 extends to the outside of the column 301, and a mounting spring 303 is fixedly installed between the other end of the limiting post 302 and the inner wall of the slot.

[0037] This utility model, through its designed connector, can further fix the plug 103 inserted into the slot 104, increasing the stability of the connection and reducing the probability that the plug 103 will detach from the slot 104 due to external force pulling the data cable 101 during use, thereby improving the stability of the flaw detector in detecting flaws in the piston rod.

[0038] In this embodiment, the front of the host 100 is provided with a display screen and operation buttons, and the host 100 is provided with a storage battery.

[0039] In this embodiment, a diagonal brace is provided on the back of the main unit 100, and the top of the diagonal brace is rotatably connected to the main unit 100 via a pivot.

[0040] Working principle and usage process of this utility model:

[0041] When using this invention to inspect the piston rod, the operator holds the outer surface of the arc-shaped buffer rubber 200, causing the protective film 211 at the end of the detection probe 102 to contact and move against the outer wall of the piston rod to inspect it. Before the protective film 211 contacts the piston rod, the right side of the protective ring 204 contacts the outer wall of the piston rod first. As the detection probe 102 continues to move towards the piston rod, it causes the side ring 201, the insert post 202, and other structures to move as well. At this time, the protective ring... The groove on the inner wall of 204 slides on the insertion post 202. Then, the connecting spring 209 is compressed by the movement of the fixing ring 207 on the side ring 201. Finally, the protective film 211 contacts the piston rod surface to start flaw detection. When the right side of the protective ring 204 leaves the piston rod surface, the connecting spring 209 starts to reset, causing the protective ring 204 to move to the right and cover the protective film 211, which can also protect the right end of the detection probe 102.

[0042] During the movement of the detection probe 102, the outer wall and end surface of the detection probe 102 are protected by the protective ring 204, the arc-shaped buffer rubber 200 and the protective film 211. When an impact occurs, the protective ring 204, the arc-shaped buffer rubber 200 and the protective film 211 will first impact the piston rod surface and external objects, reducing the probability of direct impact on the internal detection probe 102 and improving the service life of the detection probe 102. Moreover, the external arc-shaped buffer rubber 200 can also play a buffering role when it impacts the piston rod or other external objects, reducing the impact marks caused to the piston rod or other external objects.

[0043] When connecting and fixing the plug 103, first move the outer end of the limiting post 302 towards the column 301. At this time, the mounting spring 303 is compressed. Then, during the process of inserting the plug 103 into the slot 104, the through groove 304 in the disc 300 on the plug 103 passes through the top of the column 301. When the left end of the limiting post 302 is close to the through groove 304 during the process of passing through the through groove 304, release the limiting post 302. The limiting post 302 then passes through the inside of the through groove 304. Then, the mounting spring 303 resets and pushes the limiting post 302 to the left to push it out. At this time, the plug 103 may be limited, reducing the probability that the plug 103 inserted into the slot 104 will be dislodged due to the data cable 101 being pulled by external force. When it is necessary to unplug the plug 103, the operation can be performed in reverse order.

[0044] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A flaw detector for piston rod machining, comprising a main unit (100) and a detection probe (102), characterized in that: The detection probe (102) is provided with a protective mechanism on its exterior. The protective mechanism includes a protective film (211) pasted on the end of the detection probe (102), a protective ring (204) installed on the exterior of the detection probe (102), and a telescopic component. The telescopic component is provided on the exterior of the detection probe (102) and is used for the protective ring (204) to move in the left and right directions. The protective ring (204) is fixedly provided with two sets of first arc-shaped male and female adhesive strips (205), and the outer wall of the first arc-shaped male and female adhesive strips (205) is pasted with a second arc-shaped male and female adhesive strip (206). The outer side of the second arc-shaped male and female adhesive strips (206) is fixedly provided with arc-shaped buffer rubber (200).

2. The flaw detector for piston rod machining according to claim 1, characterized in that: The telescopic assembly includes multiple sets of insertion posts (202) fixed to the outside of the detection probe (102) and a side ring (201) fixed to one end of the insertion post (202). Multiple sets of fixing rings (207) are fixedly provided on the side ring (201). Multiple sets of side discs (210) are fixedly provided on one side of the protective ring (204). A moving rod (203) is fixedly provided on the side of the side disc (210).

3. The flaw detector for piston rod machining according to claim 2, characterized in that: The movable rod (203) is fitted with a connecting spring (209) on its outside. The outer side of the end of the movable rod (203) is provided with an external thread (212). A nut ring (208) is threadedly connected to the outside of the external thread (212).

4. A flaw detector for piston rod machining according to claim 3, characterized in that: The inner wall of the protective ring (204) has multiple sets of sliding grooves, and the other end of the insert (202) is inserted into the interior of the sliding groove.

5. A flaw detector for piston rod machining according to claim 1, characterized in that: A data cable (101) is fixedly provided on the side of the detection probe (102), and a plug (103) is fixedly provided at the end of the data cable (101). A slot (104) is provided on the top of the host (100). A connector is provided between the plug (103) and the host (100). The connector includes a column (301) fixed on the top of the host (100) and a disc (300) fixed outside the plug (103). A through groove (304) is provided inside the disc (300) for the top of the column (301) to pass through.

6. A flaw detector for piston rod machining according to claim 5, characterized in that: The column (301) has a slot inside, and a limiting post (302) is provided inside the slot. A mounting spring (303) is fixed between the other end of the limiting post (302) and the inner wall of the slot.

7. A flaw detector for piston rod machining according to claim 1, characterized in that: The front of the host (100) is provided with a display screen and operation buttons, and the host (100) is provided with a storage battery.

8. A flaw detector for piston rod machining according to claim 1, characterized in that: The back of the host (100) is provided with a diagonal brace, and the top of the diagonal brace is rotatably connected to the host (100) via a pivot.

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