Inspection tool for pre-casting hole of engine cylinder block casting

Abstract

The utility model relates to the technical field of precast hole inspection, and particularly discloses an engine cylinder block casting precast hole inspection tool which comprises a handheld rod, a connecting plate is fixed to one end of the handheld rod, a connecting rod is fixed to the center of the front end of the connecting plate, and an inserting mechanism is arranged on one side of the connecting rod. The inserting mechanism comprises a sleeve, the sleeve is slidably connected to the outer wall of the connecting rod, a fixing rod is fixed to one side of the outer wall of the sleeve, a connecting cylinder is arranged at the end, away from the sleeve, of the fixing rod, a mounting plate is fixed to one end of the connecting cylinder, and a rubber pad is connected to the front end of the mounting plate. The insertion mechanism can be quickly disassembled, assembled, maintained or replaced through cooperation of a connecting rod and a sleeve, detection can be performed after adjustment along with the depth of a pre-cast hole through the sleeve, a fixing rod, a connecting cylinder, a mounting plate, a rubber pad, an air bag, a mounting hole and a pressure sensor, the applicability is improved, and the situation that people feel tired due to long-time inspection with naked eyes is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of precast hole inspection, in particular to a precast hole inspection tool for an engine cylinder casting. Background Art

[0002] Automobile engine cylinder block castings are usually produced using high-pressure casting technology. In order to avoid casting defects caused by excessive local wall thickness of the casting, and also to reduce machining and improve material utilization, the main screw holes of the cylinder block are usually pre-cast in the design.

[0003] In the existing technology, the threaded holes for mounting the engine cylinder block are generally designed in a standardized manner, and during routine inspection, the threaded holes are checked by naked eye to see whether they are connected;

[0004] Although the prior art solution performs inspection by naked eye observation, if the hole is deep during the inspection, errors are prone to occur in naked eye observation, and long-term naked eye observation causes eye fatigue to the staff. Summary of the invention

[0005] The purpose of the utility model is to provide an engine cylinder casting precast hole inspection tool, which can be adjusted according to the depth of the precast hole and then perform inspection, improve applicability and avoid manual visual inspection for a long time which will be more tiring, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine cylinder casting precast hole inspection tool, comprising a hand-held rod, a connecting plate is fixed at one end of the hand-held rod, and a connecting rod is fixed at the front center of the connecting plate, and an insertion mechanism is provided on one side of the connecting rod;

[0007] The insertion mechanism includes a sleeve, which is slidably connected to the outer wall of the connecting rod, and a fixing rod is fixed to one side of the outer wall of the sleeve, a connecting tube is provided at the end of the fixing rod away from the sleeve, and a mounting plate is fixed to one end of the connecting tube, a rubber pad is connected to the front end of the mounting plate, and an airbag is fixed to the outer wall of the rubber pad, a mounting hole is opened at the front end of the airbag, and a pressure sensor is embedded in the mounting hole.

[0008] Preferably, the sleeve is threadedly connected to the connecting rod, and the inner diameter of the sleeve is consistent with the inner diameter of the mounting plate.

[0009] Preferably, the fixing rod is threadedly connected to the connecting cylinder, and the connecting cylinder is detachably connected to the mounting plate via bolts.

[0010] Preferably, a stabilizing mechanism is provided between the connecting plate and the sleeve, and the stabilizing mechanism includes a connecting ring, which is slidably connected to one side of the outer sleeve of the connecting rod, a fixing cylinder is fixed to the outer wall of the connecting plate facing the connecting ring, and a connecting rod is passed through the interior of the fixing cylinder.

[0011] Preferably, the stabilizing mechanism further comprises a spring, the spring is fixed to one end of the connecting rod penetrating into the fixing tube, and the end of the spring away from the connecting rod is connected to a pressure plate, and an electronic scale sensor is embedded on one side of the interior of the fixing tube.

[0012] Preferably, a sliding structure is formed between the pressure plate and the fixing tube, and an elastic structure is formed between the pressure plate and the connecting rod via a spring.

[0013] Preferably, an anti-slip sleeve is sleeved on one side of the outer wall of the hand-held rod, and a control end is embedded on the other side of the outer wall of the hand-held rod.

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

[0015] 1. The insertion mechanism can be quickly disassembled, maintained or replaced through the cooperation of the connecting rod and the sleeve. Through the sleeve, fixing rod, connecting tube, mounting plate, rubber pad, airbag, mounting hole and pressure sensor, the depth of the precast hole can be adjusted and then tested, which improves the applicability and avoids the fatigue of manual visual inspection for a long time;

[0016] 2. Through the connecting ring, fixing cylinder, connecting rod, spring, pressure plate and electronic scale sensor, the outer wall flatness of the casting can be tested while checking the precast hole, which improves the flexibility and comprehensiveness of the equipment. It is convenient to observe the test data with the control end, so that the staff can quickly determine whether the casting and precast hole are qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is the overall structural view of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the connecting rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting tube of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the pressure plate of the utility model.

[0022] Description of reference numerals:

[0023] 1. Hand-held rod; 2. Connecting plate; 3. Connecting rod; 4. Insertion mechanism; 401. Sleeve; 402. Fixing rod; 403. Connecting tube; 404. Mounting plate; 405. Rubber pad; 406. Airbag; 407. Mounting hole; 408. Pressure sensor; 5. Stabilizing mechanism; 501. Connecting ring; 502. Fixing tube; 503. Connecting rod; 504. Spring; 505. Pressure plate; 506. Electronic scale sensor; 6. Anti-slip cover; 7. Control end. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides a technical solution:

[0026] See also Figures 1 to 3 A precast hole inspection tool for an engine cylinder casting includes a hand-held rod 1, a connecting plate 2 is fixed at one end of the hand-held rod 1, a connecting rod 3 is fixed at the front center of the connecting plate 2, and an insertion mechanism 4 is arranged on one side of the connecting rod 3; the insertion mechanism 4 includes a sleeve 401, the sleeve 401 is slidably connected to the outer wall of the connecting rod 3, a fixing rod 402 is fixed on one side of the outer wall of the sleeve 401, and a connecting tube 403 is arranged on the end of the fixing rod 402 away from the sleeve 401, and one end of the connecting tube 403 is fixed There is a mounting plate 404, the front end of which is connected to a rubber pad 405, an airbag 406 is fixed to the outer wall of the rubber pad 405, a mounting hole 407 is provided at the front end of the airbag 406, a pressure sensor 408 is embedded in the mounting hole 407, a sleeve 401 is threadedly connected to the connecting rod 3, the inner diameter of the sleeve 401 is consistent with the inner diameter of the mounting plate 404, a fixing rod 402 is threadedly connected to the connecting tube 403, and the connecting tube 403 is detachably connected to the mounting plate 404 by bolts.

[0027] By adopting the above technical solution, the hand-held rod 1 is convenient for the staff to hold, and the connecting rod 3 is fixed by the connecting plate 2, which is convenient for the threaded connection of the sleeve 401 of the insertion mechanism 4, thereby facilitating the disassembly and maintenance of the insertion mechanism 4. The fixed rod 402 connected to one end of the sleeve 401 is threadedly connected to the connecting tube 403. The connecting tube 403 is driven by rotating the mounting plate 404. According to the depth of the precast hole, the length of the fixed rod 402 and the connecting tube 403 is adjusted to improve applicability. The pressure sensor 408 embedded in the mounting plate 404 is convenient for insertion into the precast hole to detect whether it is connected. The rubber pad 405 and the airbag 406 set on the mounting plate 404 protect the outer wall of the pressure sensor 408 through the mounting hole 407 to avoid contact with the hole wall and collision to affect detection.

[0028] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, a stabilizing mechanism 5 is arranged between the connecting plate 2 and the sleeve 401, and the stabilizing mechanism 5 includes a connecting ring 501, which is slidably connected to one side of the outer sleeve 401 of the connecting rod 3, and a fixing cylinder 502 is fixed to the outer wall of the connecting plate 2 facing the connecting ring 501, and a connecting rod 503 is passed through the interior of the fixing cylinder 502. The stabilizing mechanism 5 also includes a spring 504, and the spring 504 is fixed to one end of the connecting rod 503 that passes through the fixing cylinder 502, and the end of the spring 504 away from the connecting rod 503 is connected to a pressure plate 505, and an electronic scale sensor 506 is embedded on one side of the interior of the fixing cylinder 502, and a sliding structure is formed between the pressure plate 505 and the fixing cylinder 502, and an elastic structure is formed between the pressure plate 505 and the connecting rod 503 through the spring 504, and an anti-slip sleeve 6 is provided on one side of the outer wall of the hand-held rod 1, and a control end 7 is embedded on the other side of the outer wall of the hand-held rod 1.

[0029] By adopting the above technical solution, before the sleeve 401 is installed, the connecting ring 501 is sleeved on the connecting rod 3, and the connecting rod 503 is allowed to pass through the fixed tube 502, and then the sleeve 401 is installed to limit the connecting ring 501. When the sleeve 401 passes through the precast hole, the connecting ring 501 fits the outer wall of the casting, and the spring 504 elastically pushes the pressure plate 505 to contact the electronic scale sensor 506. When the casting is uneven, the electronic scale sensor 506 on the corresponding side transmits incorrect data to the control terminal 7, which is convenient for detecting the flatness of the casting, and cooperates with the anti-slip sleeve 6 to improve the anti-slip effect of the hand-held rod 1.

[0030] Working principle: the hand-held rod 1 supports the fixed connecting rod 3 through the fixed connecting plate 2, so as to be threadedly connected with the sleeve 401. At the same time, according to the depth of the precast hole to be detected, the fixed rod 402 and the connecting tube 403 are rotated to adjust the length so that the mounting plate 404 can be inserted. At the same time, the mounting hole 407 opened by the rubber pad 405 and the airbag 406 is used to preserve the pressure sensor 408 to avoid contact with the hole wall and affect the detection. Before the connecting sleeve 401, the connecting rod 3 is sleeved with a connecting ring 501, so that the connecting rod 503 is inserted into the fixed tube 502, and then the connecting sleeve 401 is limited. When the sleeve 401 enters the precast hole, the connecting ring 501 contacts the casting, and the spring 504 elastically pushes the pressing plate 505 to press the electronic scale sensor 506. The connecting ring 501 fits the casting surface. When unevenness occurs, the corresponding group of electronic scale sensors 506 transmits data to the control end 7 with errors, thereby determining whether it is smooth. At the same time, the anti-slip sleeve 6 prevents the staff from slipping when holding it.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An engine block casting precast hole inspection tool, comprising a hand-held rod (1), characterized in that: A connecting plate (2) is fixed to one end of the hand-held rod (1), a connecting rod (3) is fixed to the front center of the connecting plate (2), and an insertion mechanism (4) is provided on one side of the connecting rod (3); The insertion mechanism (4) comprises a sleeve (401), the sleeve (401) being slidably connected to the outer wall of the connecting rod (3), and a fixing rod (402) being fixed to one side of the outer wall of the sleeve (401), a connecting tube (403) being provided at one end of the fixing rod (402) away from the sleeve (401), and a mounting plate (404) being fixed to one end of the connecting tube (403), a rubber pad (405) being connected to the front end of the mounting plate (404), and an airbag (406) being fixed to the outer wall of the rubber pad (405), a mounting hole (407) being provided at the front end of the airbag (406), and a pressure sensor (408) being embedded in the mounting hole (407).

2. The engine block casting precast hole inspection tool according to claim 1, characterized in that: The sleeve (401) is threadedly connected to the connecting rod (3), and the inner diameter of the sleeve (401) is consistent with the inner diameter of the mounting plate (404).

3. The engine block casting precast hole inspection tool according to claim 1, characterized in that: The fixing rod (402) is threadedly connected to the connecting cylinder (403), and the connecting cylinder (403) is detachably connected to the mounting plate (404) via bolts.

4. The engine block casting precast hole inspection tool according to claim 1, characterized in that: A stabilizing mechanism (5) is provided between the connecting plate (2) and the sleeve (401), the stabilizing mechanism (5) comprising a connecting ring (501), the connecting ring (501) being slidably connected to one side of the outer sleeve (401) of the connecting rod (3), a fixing cylinder (502) being fixed to the outer wall of the connecting plate (2) facing the connecting ring (501), and a connecting rod (503) extending from the interior of the fixing cylinder (502).

5. The engine block casting precast hole inspection tool according to claim 4, characterized in that: The stabilizing mechanism (5) further comprises a spring (504), wherein the spring (504) is fixed to one end of the connecting rod (503) that penetrates into the fixing tube (502), and one end of the spring (504) away from the connecting rod (503) is connected to a pressing plate (505), and an electronic scale sensor (506) is embedded in one side of the interior of the fixing tube (502).

6. The engine block casting precast hole inspection tool according to claim 5, characterized in that: A sliding structure is formed between the pressure plate (505) and the fixed cylinder (502), and an elastic structure is formed between the pressure plate (505) and the connecting rod (503) via the spring (504).

7. The engine block casting precast hole inspection tool according to claim 1, characterized in that: An anti-slip sleeve (6) is sleeved on one side of the outer wall of the hand-held rod (1), and a control end (7) is embedded on the other side of the outer wall of the hand-held rod (1).

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