Differential shell anti-leakage polishing detection tool

Abstract

The utility model discloses a differential shell anti-leakage polishing detection tool, which comprises a base (1) and an inclined frame (2) obliquely arranged on the base (1), and a limiting slide rail (3) with a gap and a positioning support strip capable of positioning and supporting a flange excircle and a cylindrical excircle of a differential shell casting (4) are formed on the inclined frame (2). And the qualified differential shell casting (4) can enter from the top end of the limiting sliding rail (3) and roll to the bottom end of the limiting sliding rail (3). According to the differential shell anti-leakage polishing detection tool, the polishing position of a casting can be detected by 100%, the detection speed is high, the result is accurate and visual, the follow-up machining problem caused by the fact that the casting is not polished is effectively avoided, and smooth production is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of differential production and processing, in particular to a differential housing leakage prevention grinding and detection tool. Background Art

[0002] A car's differential enables the left and right (or front and rear) drive wheels to rotate at different speeds. It primarily consists of left and right axle gears, two planetary gears, and a gear carrier. Its function is to ensure pure rolling motion when the car is turning or driving on uneven roads, allowing the left and right wheels to roll at different speeds. The differential is designed to adjust the speed difference between the left and right wheels.

[0003] Among them, the differential has a shell, which is a split structure consisting of a shell cover and a shell. In the casting process, a riser is designed on the outer circle to compensate for shrinkage, and there is a shrinkage subsidy on the flange. After the riser is removed, the riser neck residue and subsidy need to be subsequently polished away, and there is a risk of missing polishing. Once missed polishing, it will cause tooling problems during subsequent processing. Utility Model Content

[0004] The purpose of the utility model is to provide a differential shell anti-leakage grinding detection tool, which can perform 100% detection of the grinding position of the casting, has a fast detection speed, and the results are accurate and intuitive, effectively avoiding subsequent processing problems caused by unpolished castings, and ensuring smooth production.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a differential shell leakage prevention grinding and detection tool, which includes a base and an inclined frame obliquely installed on the base, and a limiting slide rail with a gap and a positioning support bar that can position and support the differential shell casting flange outer circle and the cylindrical outer circle. The qualified differential shell casting can enter from the top of the limiting slide rail and roll to the bottom end.

[0006] Preferably, one end of the inclined frame is rotatably hinged to the base, and the other end is elevated by a support column.

[0007] Preferably, the support column is a multi-section detachable column.

[0008] Preferably, the support column is a telescopic cylinder.

[0009] Preferably, the positioning support bar includes a first positioning support bar and a second positioning support bar respectively located at the edges of both sides of the oblique frame, and are configured to be able to position and support the outer circle of the shaft hole of the differential shell casting.

[0010] Preferably, the positioning support bar includes a third positioning support bar arranged parallel to the second positioning support bar, the third positioning support bar is arranged to be able to position and support the outer circle of the window of the differential shell casting, and a limiting slide rail for accommodating the flange is formed between the third positioning support bar and the second positioning support bar.

[0011] Preferably, both ends of the second positioning support bar are formed with support arms upward, and a constraint bar is arranged between the pair of support arms. The constraint bar is configured to constrain the outer flange surface of the differential shell casting to guide the differential shell casting to roll.

[0012] Preferably, a baffle is connected to the bottom end of the limiting slide rail to stop the differential shell casting rolling down the limiting slide rail.

[0013] According to the above technical solution, the utility model designs a slide rail in the middle of the leak-proof grinding and detection tooling, and uses the outer circle of the casting flange and the outer circle of the cylinder for positioning and support. A through-type limiter with a gap is designed on the top. After the casting is placed in the slide rail, it rolls downward under the action of gravity. Parts that have passed the grinding can roll to the bottom normally. Parts that have not been ground or have not been ground in place will be stuck in the detection tooling and cannot roll. In this way, it can effectively identify and prevent the unground parts from flowing into the next process.

[0014] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural diagram of a differential shell leak-proof grinding and detection tooling according to an embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a differential shell leak-proof grinding and detection tooling according to another embodiment provided by the utility model.

[0018] Description of Reference Numerals

[0019] 1- Base 2- Slant Frame

[0020] 3-Limiting slide rail 4-Differential shell casting

[0021] 5-Support column 61-First positioning support bar

[0022] 62-second positioning support bar 63-third positioning support bar

[0023] 7-Support arm 8-Constraint bar DETAILED DESCRIPTION

[0024] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0025] In the present invention, unless otherwise stated, directional words such as "inside, outside, top, bottom" contained in the terms merely represent the directions of the terms in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms.

[0026] See also Figure 1 and Figure 2 The utility model provides a differential shell leak-proof grinding and detection tool, which includes a base 1 and an inclined frame 2 obliquely installed on the base 1, and a limiting slide rail 3 with a gap and a positioning support bar that can position and support the flange outer circle and the cylindrical outer circle of the differential shell casting 4. The qualified differential shell casting 4 that has been polished can enter from the top of the limiting slide rail 3 and roll to the bottom end.

[0027] Through the above technical solution, a slide rail is designed in the middle of the inspection tooling, which is positioned and supported by the outer circle of the casting flange and the outer circle of the cylinder. A through-type limiter with a gap is designed on the top. When the casting is placed on the slide rail, it rolls downward under the action of gravity. Parts that have passed the polishing process can roll to the bottom normally, while parts that have not been polished or have not been polished in place will be stuck in the inspection tooling and cannot roll. In this way, it can effectively identify and prevent unpolished parts from flowing into the next process.

[0028] Different models of differentials have different housing shapes and masses. When placing different models of differential housing castings 4 on the differential housing leak-proof polishing and testing tooling, some differential housing castings 4 may roll faster, and the test results may come out faster; while some differential housing castings 4 may roll slower, and it may take a longer time to obtain the test results. In even worse cases, some differential housing castings may not be able to roll down on their own, but they are not defective. To avoid this, it is preferred that one end of the inclined frame 2 be rotatably hinged to the base 1, and the other end be raised by a support column 5. In this way, the differential housing casting 4 is more significantly affected by gravity, and good products can roll down smoothly and stably, ultimately obtaining the test results.

[0029] Furthermore, in order to flexibly and conveniently adjust the tilt of the tilt frame 2 according to the testing requirements of different models of differential shell castings 4, the support column 5 is preferably a multi-section detachable column. In this way, the length of the support column 5 can be adjusted by increasing or decreasing the number of sections, and the height of one end of the tilt frame 2 can be changed to increase or decrease the tilt of the tilt frame 2, making it more adaptable to different differential shell castings 4.

[0030] Furthermore, in order to facilitate the adjustment of the tilt of the tilt frame 2 and avoid repeated adjustments during manual operation that affect the detection cycle, it is further preferred that the support column 5 is a telescopic cylinder. The adjustment operation is more convenient and the process is smoother.

[0031] In this embodiment, in order to provide sufficient supporting force to the overall components of the differential shell casting 4 when the differential shell casting 4 rolls, and to ensure that the differential shell casting 4 can slide down steadily along the limiting slide rail 3 without tilting or even overturning, preferably, the positioning support strip includes a first positioning support strip 61 and a second positioning support strip 62 respectively located on the edges of both sides of the inclined frame 2, and are arranged to be able to position and support the outer circle of the axial hole of the differential shell casting 4.

[0032] Similarly, the preferred positioning support bar includes a third positioning support bar 63 arranged parallel to the second positioning support bar 62, and the third positioning support bar 63 is configured to be able to position and support the outer circle of the window of the differential shell casting 4, and a limiting slide rail 3 for accommodating the flange is formed between the third positioning support bar 63 and the second positioning support bar 62.

[0033] In addition, in order to improve the accuracy of detection, the differential shell casting 4 rolling down from the limiting slide rail 3 needs to roll for at least one week. The rolling path of the larger-sized differential shell casting 4 is larger, which also makes the length of the limiting slide rail 3 correspondingly longer. When the smaller-sized differential shell casting 4 rolls down on the limiting slide rail 3 of the same length, it will roll for multiple weeks. In this process, the smaller-sized differential shell casting 4 is very likely to deviate in direction and roll in different directions, and then fall off the inclined frame 2, causing the test failure, which seriously affects the detection process. In order to solve this technical problem, it is preferred that support arms 7 are formed upward at both ends of the second positioning support bar 62, and a constraint bar 8 is arranged between a pair of support arms 7. The constraint bar 8 is configured to constrain the outer flange surface of the differential shell casting 4 to guide the rolling of the differential shell casting 4.

[0034] In addition, when the heavy differential shell casting 4 rolls down from the inclined frame 2 to the bottom, it is difficult to stop immediately, and collisions with surrounding objects may occur. In serious cases, good products that have passed the inspection may even be damaged, which is not worth the loss. To avoid this situation, preferably, a baffle is connected to the bottom end of the limiting slide 3 to stop the differential shell casting 4 rolling down the limiting slide 3. The use of the baffle for effective and timely stopping can perfectly solve the above problem and ensure the good product rate of the differential shell casting 4.

[0035] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0037] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A leak-proof grinding and detection tool for differential shells, characterized in that: The differential shell leak-proof grinding and detection tool comprises a base (1) and an inclined frame (2) obliquely mounted on the base (1); a limiting slide rail (3) with a gap and a positioning support bar capable of positioning and supporting the flange outer circle and the cylindrical outer circle of the differential shell casting (4) are formed on the inclined frame (2); the differential shell casting (4) that has been polished and qualified can enter from the top end of the limiting slide rail (3) and roll to the bottom end.

2. The leak-proof grinding and detection tool for differential shell according to claim 1 is characterized in that: One end of the inclined frame (2) is rotatably hinged to the base (1), and the other end is erected and elevated via a support column (5).

3. The leak-proof grinding and detection tool for differential shell according to claim 2 is characterized in that: The support column (5) is a multi-section detachable column.

4. The leak-proof grinding and detection tool for differential shell according to claim 2, characterized in that: The support column (5) is a telescopic cylinder.

5. The leak-proof grinding and detection tool for differential shell according to claim 1, characterized in that: The positioning support strips include a first positioning support strip (61) and a second positioning support strip (62) respectively located at the edges of both sides of the oblique frame (2), and are configured to both be able to position and support the outer circle of the shaft hole of the differential shell casting (4).

6. The leak-proof grinding and detection tool for differential shell according to claim 5, characterized in that: The positioning support bar includes a third positioning support bar (63) arranged in parallel with the second positioning support bar (62), and the third positioning support bar (63) is arranged to be able to position and support the window outer circle of the differential shell casting (4), and the limiting slide rail (3) for accommodating the flange is formed between the third positioning support bar (63) and the second positioning support bar (62).

7. The leak-proof grinding and detection tool for differential shell according to claim 6, characterized in that: Both ends of the second positioning support bar (62) are formed with support arms (7) extending upwards, and a constraint bar (8) is arranged between a pair of the support arms (7), and the constraint bar (8) is configured to constrain the outer flange surface of the differential shell casting (4) to guide the differential shell casting (4) to roll.

8. The leak-proof grinding and detection tool for differential shell according to claim 1, characterized in that: The bottom end of the limiting slide rail (3) is connected to a baffle plate for stopping the differential shell casting (4) rolling down along the limiting slide rail (3).

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