Gearbox shell inner wall arc degree detection device

Abstract

The utility model discloses a gearbox housing inner wall arc degree detection device comprising a bottom plate, and the bottom plate is fixedly provided with a product detection support, an inner ring inner wall detection member, a middle ring inner wall detection member, and an outer ring inner wall detection member. Each of the inner ring inner wall detection piece and the middle ring inner wall detection piece comprises a first handle, a supporting plate and a detection plate; the first handles and the detection plates are respectively fixed on the upper and lower end surfaces of the supporting plates; the outer ring inner wall detection part comprises a second detection device support, the second detection device support is fixed on the bottom plate, a sliding groove is formed in the middle of the second detection device support, a sliding plate is arranged on the second detection device support, a sliding block is arranged at the bottom of the middle of the sliding plate, and the sliding block is arranged in the sliding groove and can move front and back in the length direction of the sliding groove. A detection head is arranged at the front end of the sliding plate, and second handles used for driving the sliding plate to slide on the second detection device support are arranged on the sliding plate and located on the two sides of the sliding groove. The utility model has the advantages of simple structure, convenient realization and low processing cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a gearbox housing inner wall camber detection device belongs to automobile parts detection technical field. BACKGROUND

[0002] The gearbox is composed of multiple parts, and corresponds to various production molds, and after production, the product needs to be detected. Figure 2 As shown in the figure, the gearbox housing (product) includes an outer wall with multiple vertical holes and two layers of grooves inside, the gearbox housing is a bowl-shaped structure, and the outer wall is similar to the bowl-shaped edge and is folded to form. After the product is processed, the size of the inner side of the outer wall (i.e. the outer ring inner wall A1), the inner side wall of the two layers of grooves (i.e. the middle ring inner wall A2 and the inner ring inner wall A3) needs to be detected.

[0003] For large factories with good equipment conditions and relatively rich resources, high-tech equipment such as laser detection can be used, but it will inevitably lead to high cost of the detection device and large floor area of the production line. For small factories or factories with poor economic benefits, various expenses need to be reduced, so the above detection equipment is not suitable. How to design a cheap and effective detection device is a problem to be solved by the above enterprises. SUMMARY

[0004] The technical problem to be solved by the utility model is: how to reduce the cost and floor area of the detection device without affecting the detection effect.

[0005] In order to solve the above technical problem, the technical scheme of the utility model provides a gearbox housing inner wall camber detection device, characterized by comprising a bottom plate, the bottom plate is fixed with a product detection support, an inner ring inner wall detection piece, a middle ring inner wall detection piece and an outer ring inner wall detection piece.

[0006] The inner ring inner wall detection piece and the middle ring inner wall detection piece each include a first handle, a support plate and a detection plate, the first handle and the detection plate are respectively fixed on the upper and lower end faces of the support plate, and the length of the detection plate on the middle ring inner wall detection piece and the length of the detection plate on the inner ring inner wall detection piece are respectively matched with the inner diameter of the middle ring inner wall and the inner ring inner wall of the gearbox housing.

[0007] The outer ring inner wall detection part includes a second detection instrument support, the second detection instrument support is fixed on the base plate, a slide groove is provided in the middle position of the second detection instrument support, a slide plate is provided on the second detection instrument support, a slider is provided at the bottom of the middle position of the slider, the slider is provided in the slide groove, and can move back and forth along the length direction of the slide groove, a detection head is provided at the front end of the slider, and a second handle is provided on both sides of the slide groove on the slider for driving the slider to slide on the second detection instrument support; the distance between the detection head and the center axis of the product detection support matches half the inner diameter of the outer ring inner wall of the gearbox housing.

[0008] Preferably, when the gearbox housing is not inspected, the inner ring inner wall inspection component and the middle ring inner wall inspection component are arranged on the first inspection equipment support.

[0009] Preferably, a limit groove is provided in the middle of the first detection device support along its length direction, the width of the detection plate on the inner ring inner wall detection part and the middle ring inner wall detection part is smaller than the width of the limit groove, the width of the support plate is larger than the width of the limit groove, and the distance between any side edge in the width direction of the support plate and any side edge in the width direction of the detection plate is larger than the width of the limit groove.

[0010] Preferably, the length of the detection plate on the middle ring inner wall detection piece is greater than the length of the detection plate on the inner ring inner wall detection piece.

[0011] Preferably, the detection head is facing the product detection support, and the product detection support is located in the sliding direction of the slider in the slide groove; the detection head is a right-angled triangle structure, and the inclined surface is arranged at the front end, one right-angled side is arranged on the upper surface of the slide, and the other right-angled side is arranged vertically upward; during detection, the distance between the vertical right-angled side of the detection head and the center axis of the product detection support matches half the inner diameter of the inner wall of the outer ring of the gearbox housing.

[0012] Preferably, it also includes a product idle support for placing the gearbox housing when not being inspected, the product idle support including a product idle limit head and a product idle base, the product idle base is fixed on the bottom plate, and the product idle limit head is fixed on the product idle base; the product idle limit head and the product idle base are both cylindrical structures, and the aperture of the circular hole in the middle of the gearbox housing is larger than the outer diameter of the product idle limit head, and smaller than the outer diameter of the product idle base; when the gearbox housing is placed on the product idle support, the circular hole in the middle of the gearbox housing is sleeved on the product idle limit head and supported on the product idle base.

[0013] Preferably, the product inspection support includes a product inspection base, a product inspection support block, and a product inspection limit head. The product inspection base is fixed on the base plate, and a product inspection support block for supporting the gearbox housing is fixed on the product inspection base, and a product inspection limit head for limiting the movement of the gearbox housing is fixed on the product inspection support block; the cross-sections of the product inspection base, the product inspection support block, and the product inspection limit head are all circular structures, and the aperture of the circular hole in the middle of the gearbox housing matches the outer diameter of the product inspection limit head; the aperture of the circular hole in the middle of the gearbox housing is larger than the outer diameter of the product inspection limit head and smaller than the outer diameter of the product inspection support block, and the outer diameter of the product inspection support block is smaller than the outer diameter of the product inspection base.

[0014] Preferably, the product detection base and the product detection support block are connected by a conical surface transition; during detection, the circular hole in the middle of the gearbox housing is sleeved on the product detection limit head and supported on the product detection support block; a protrusion is added to the top of the product detection limit head, and the outer diameter of the protrusion is smaller than the outer diameter of the product detection limit head.

[0015] Preferably, a bolt is provided at the end of the second handle, and the bolt at the end of the second handle passes through the long waist hole on the slide and is threadedly connected to the threaded hole on the second detection equipment support; the length direction of the long waist hole on the slide is the same as the sliding direction of the slide groove.

[0016] Preferably, a bolt is provided at the end of the second handle, and the bolt at the end of the second handle passes through a threaded hole on the slide. The slide groove is a T-shaped structure or a wedge-shaped structure that prevents the slide from falling out upward.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] The utility model has a simple structure, is easy to implement, and has low processing costs. The inner ring inner wall detection member and the middle ring inner wall detection member of the utility model have simple structures and can detect the radian of the middle ring inner wall and the inner ring inner wall of the transmission housing through the inner ring inner wall detection member and the middle ring inner wall detection member. The outer ring inner wall detection member of the utility model cooperates with the product detection support used to support the transmission housing to detect the radian of the outer ring inner wall of the transmission housing. The radian of the outer ring inner wall of the transmission housing can be adjusted by adjusting the position of the detection head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a device for detecting the arc angle of the inner wall of a gearbox housing;

[0020] Figure 2 This is a schematic diagram of the gearbox housing (product). DETAILED DESCRIPTION

[0021] In order to make the utility model more obvious and easy to understand, the preferred embodiment is described in detail below with the accompanying drawings.

[0022] Embodiment 1

[0023] The utility model provides a gearbox shell inner wall arc detection device, as shown in the figure, it includes bottom plate 1, and the bottom plate 1 is fixed with product detection support 2, first detection tool support 3, outer ring inner wall detection piece 7, product idle support 8. Figure 1

[0024] Product detection support 2 is used to place the product (gearbox shell) during detection, and it includes product detection base 21, product detection support block 22 and product detection limiting head 23, the product detection base 21 is fixed on the bottom plate 1, the product detection base 21 is fixed with the product detection support block 22 for supporting the product (gearbox shell), and the product detection support block 22 is fixed with the product detection limiting head 23 for limiting the activity of the product (gearbox shell). The product detection base 21 and the product detection support block 22 are connected by a conical surface. During detection, the round hole in the middle of the gearbox shell is sleeved on the product detection limiting head 23 and supported on the product detection support block 22. The hole diameter of the round hole in the middle of the gearbox shell matches the outer diameter of the product detection limiting head 23. The hole diameter of the round hole in the middle of the gearbox shell is greater than the outer diameter of the product detection limiting head 23 and less than the outer diameter of the product detection support block 22. The outer diameter of the product detection support block 22 is less than the outer diameter of the product detection base 21. In order to better place the product on the product detection support 2, a protrusion can be added on the top of the product detection limiting head 23, and the outer diameter of the protrusion is less than the outer diameter of the product detection limiting head 23. The cross section of the product detection base 21, the product detection support block 22, the product detection limiting head 23 and the protrusion is circular structure.

[0025] The first detection tool support 3 is used to place the inner ring inner wall detection piece 5 and the middle ring inner wall detection piece 6 when not in use, and the first detection tool support 3 is provided with a limiting groove 4 in the middle along the length direction, which is used to limit the inner ring inner wall detection piece 5 and the middle ring inner wall detection piece 6 inside, preventing them from falling off.

[0026] The middle ring inner wall detection piece 6 includes a first handle 61, a support plate 62 and a detection plate 63, the first handle 61 and the detection plate 63 are fixed on the upper and lower end faces of the support plate 62 respectively, and the width of the detection plate 63 is less than the width of the limiting groove 4. The width of the support plate 62 is greater than the width of the limiting groove 4, and the distance between any one side of the width direction of the support plate 62 and any one side of the width direction of the detection plate 63 is greater than the width of the limiting groove 4.

[0027] ​The structures of the inner ring inner wall detection member 5 and the middle ring inner wall detection member 6 are similar, differing in the length of the detection plate 63. The detection plate 63 on the middle ring inner wall detection member 6 is longer than the detection plate 63 on the inner ring inner wall detection member 5. The lengths of the detection plates 63 on the middle ring inner wall detection member 6 and 63 on the inner ring inner wall detection member 5 match the inner diameters of the middle ring inner wall A2 and inner ring inner wall A3 of the transmission housing, respectively.

[0028] The outer ring inner wall detection member 7 includes a second detection device support 73 fixed to the base plate 1. A slot 74 is defined in the middle of the second detection device support 73. A slide 72 is provided on the second detection device support 73. A slider is located at the bottom of the middle portion of the slide 72. The slider is positioned within the slot 74 and can move back and forth along the length of the slot 74. A detection head 75 is provided at the front end of the slide 72 for detecting the curvature of the outer ring inner wall A1 of the transmission housing. Second handles 71 are located on either side of the slot 74 on the slide 72 for driving the slide 72 to slide on the second detection device support 73. The detection head 75 faces the product detection support 2, which is located in the sliding direction of the slider within the slot 74. The detection head 75 has a right-angled triangle structure, with an inclined surface at the front end, one right-angled side located on the upper surface of the slide 72, and the other right-angled side extending vertically upward. By adjustment, the distance between the vertical right-angled side of the detection head 75 and the central axis of the product detection support 2 matches half the inner diameter of the outer ring inner wall A1 of the gearbox housing.

[0029] In this embodiment, a bolt is provided at the end of the second handle 71. The bolt at the end of the second handle 71 passes through the long waist hole on the slide 72 and is threadedly connected to the threaded hole on the second detection device support 73. The length direction of the long waist hole on the slide 72 is the same as the sliding direction of the slide 74. When in use, the second handle 71 is rotated so that the bolt at the end of the second handle 71 and the threaded hole on the second detection device support 73 are loosened, thereby sliding the slide 72 and adjusting the distance between the detection head 75 and the product detection support 2 (the moving distance is less than the length of the long waist hole, that is, moving); after adjustment, the second handle 71 is rotated in the opposite direction, and as the bolt at the end of the second handle 71 continuously enters the threaded hole on the second detection device support 73, the end of the second handle 71 is pressed against the slide 72 again to prevent the slide 72 from sliding.

[0030] The product idle support 8 is used to place the product (transmission housing) when it is not being inspected. It includes a product idle limit head 81 and a product idle base 82. The product idle base 82 is fixed to the bottom plate 1, and the product idle limit head 81 is fixed to the product idle base 82. The product idle limit head 81 and the product idle base 82 are both cylindrical structures. The circular hole in the middle of the transmission housing is sleeved on the product idle limit head 81 and supported on the product idle base 82. The aperture of the circular hole in the middle of the transmission housing is larger than the outer diameter of the product idle limit head 81 and smaller than the outer diameter of the product idle base 82.

[0031] The use process of this utility model is as follows:

[0032] Pick up the gearbox housing located on the product idle support 8, and place the detection plates 63 of the inner ring inner wall detection part 5 and the middle ring inner wall detection part 6 in the middle ring and inner ring of the gearbox housing respectively. Then rotate the gearbox housing to detect whether the radian of the middle ring inner wall A2 and the inner ring inner wall A3 meet the requirements. If the radian is not enough, the gearbox housing will get stuck during rotation. If it rotates smoothly, it proves that it meets the requirements.

[0033] Next, place the transmission housing on the product inspection support 2, enclosing the inspection head 75. Adjust the distance between the inspection head 75 and the product inspection support 2 to ensure that the inspection head 75 is within the required distance from the inner wall A1 of the outer ring of the transmission housing. Rotate the transmission housing on the product inspection support 2 for one full rotation, then lift it up. If there are no scratches on the transmission housing caused by the inspection head 75, the arc meets the requirements. If there are scratches, it indicates that friction has occurred with the inspection head 75, indicating that the arc is insufficient.

[0034] Example 2

[0035] In this embodiment, a bolt is provided at the end of the second handle 71. The bolt passes through a threaded hole in the slide 72. The slide 74 has a T-shaped or wedge-shaped structure, which prevents the slide from sliding upward. During use, the second handle 71 is rotated to disengage the end of the bolt from the end surface of the second detection device support 73, thereby sliding the slide 72 and adjusting the distance between the detection head 75 and the product detection support 2. After adjustment, the second handle 71 is rotated in the opposite direction, so that the end of the bolt at the end of the second handle 71 presses against the end surface of the second detection device support 73, preventing the slide 72 from sliding.

[0036] The rest is the same as Example 1.

Claims

1. A device for detecting the arc angle of the inner wall of a gearbox housing, characterized in that: The invention comprises a bottom plate (1), on which a product detection support (2), an inner ring inner wall detection member (5), a middle ring inner wall detection member (6), and an outer ring inner wall detection member (7) are fixed; The inner ring inner wall detection member (5) and the middle ring inner wall detection member (6) both comprise a first handle (61), a support plate (62), and a detection plate (63). The first handle (61) and the detection plate (63) are respectively fixed on the upper and lower end surfaces of the support plate (62). The length of the detection plate (63) on the middle ring inner wall detection member (6) and the length of the detection plate (63) on the inner ring inner wall detection member (5) respectively match the inner diameters of the middle ring inner wall (A2) and the inner ring inner wall (A3) of the gearbox housing. The outer ring inner wall detection member (7) includes a second detection device support (73), the second detection device support (73) is fixed on the base plate (1), a slide groove (74) is provided in the middle position of the second detection device support (73), a slide plate (72) is provided on the second detection device support (73), a slider is provided at the bottom of the middle position of the slider (72), the slider is provided in the slide groove (74), and can move forward and backward along the length direction of the slide groove (74), a detection head (75) is provided at the front end of the slider (72), and a second handle (71) for driving the slider (72) to slide on the second detection device support (73) is provided on both sides of the slide groove (74); the distance between the detection head (75) and the central axis of the product detection support (2) matches half of the inner diameter of the outer ring inner wall (A1) of the gearbox housing.

2. A transmission case inner wall arc detection device according to claim 1, characterized in that: When the gearbox housing is not inspected, the inner ring inner wall inspection member (5) and the middle ring inner wall inspection member (6) are arranged on the first inspection device support (3).

3. The device for detecting the radian of the inner wall of a gearbox housing according to claim 2, wherein: A limiting groove (4) is provided in the middle of the first detection device support (3) along its length direction; the widths of the detection plates (63) on the inner ring inner wall detection member (5) and the middle ring inner wall detection member (6) are both smaller than the width of the limiting groove (4); the width of the support plate (62) is larger than the width of the limiting groove (4); and the distance between any side edge in the width direction of the support plate (62) and any side edge in the width direction of the detection plate (63) is larger than the width of the limiting groove (4).

4. The device for detecting the radian of the inner wall of a transmission housing according to claim 1, wherein: The length of the detection plate (63) on the middle ring inner wall detection piece (6) is greater than the length of the detection plate (63) on the inner ring inner wall detection piece (5).

5. The device for detecting the radian of the inner wall of a gearbox housing according to claim 1, characterized in that: The detection head (75) is directly opposite to the product detection support (2), and the product detection support (2) is located in the sliding direction of the slider in the slide groove (74); the detection head (75) is a right-angled triangle structure, and the inclined surface is provided at the front end, one right-angled side is provided on the upper surface of the slide plate (72), and the other right-angled side is provided vertically upward; during detection, the distance between the vertical right-angled side of the detection head (75) and the central axis of the product detection support (2) matches half of the inner diameter of the outer ring inner wall (A1) of the gearbox housing.

6. The device for detecting the radian of the inner wall of a transmission housing according to claim 1, characterized in that: The invention also includes a product idle support (8) for placing the gearbox housing when not being tested, wherein the product idle support (8) includes a product idle limit head (81) and a product idle base (82), wherein the product idle base (82) is fixed on the bottom plate (1), and the product idle limit head (81) is fixed on the product idle base (82); the product idle limit head (81) and the product idle base (82) are both cylindrical structures, and the diameter of the circular hole in the middle of the gearbox housing is larger than the outer diameter of the product idle limit head (81) and smaller than the outer diameter of the product idle base (82); when the gearbox housing is placed on the product idle support (8), the circular hole in the middle of the gearbox housing is sleeved on the product idle limit head (81) and supported on the product idle base (82).

7. The device for detecting the radian of the inner wall of a transmission housing according to claim 1, characterized in that: The product detection support (2) comprises a product detection base (21), a product detection support block (22), and a product detection limit head (23); the product detection base (21) is fixed on the base plate (1); a product detection support block (22) for supporting the gearbox housing is fixed on the product detection base (21); and a product detection limit head (23) for limiting the movement of the gearbox housing is fixed on the product detection support block (22); the cross-sections of the product detection base (21), the product detection support block (22), and the product detection limit head (23) are all circular structures; the aperture of the circular hole in the middle of the gearbox housing matches the outer diameter of the product detection limit head (23); the aperture of the circular hole in the middle of the gearbox housing is larger than the outer diameter of the product detection limit head (23) and smaller than the outer diameter of the product detection support block (22); and the outer diameter of the product detection support block (22) is smaller than the outer diameter of the product detection base (21).

8. The device for detecting the radian of the inner wall of a gearbox housing according to claim 7, characterized in that: The product detection base (21) and the product detection support block (22) are connected via a conical surface transition; during detection, the circular hole in the middle of the gearbox housing is sleeved on the product detection limit head (23) and supported on the product detection support block (22); a protrusion is added to the top of the product detection limit head (23), and the outer diameter of the protrusion is smaller than the outer diameter of the product detection limit head (23).

9. A device for detecting the radian of the inner wall of a transmission housing according to any one of claims 1 to 8, characterized in that: The end of the second handle (71) is provided with a bolt, and the bolt at the end of the second handle (71) passes through the long waist hole on the slide (72) and is threadedly connected to the threaded hole on the second detection device support (73); the length direction of the long waist hole on the slide (72) is the same as the sliding direction of the slide groove (74).

10. A transmission case inner wall arc detection device according to any one of claims 1 to 8, characterized in that: The end of the second handle (71) is provided with a bolt, and the bolt at the end of the second handle (71) passes through the threaded hole on the slide (72), and the slide groove (74) is a T-shaped structure or a wedge-shaped structure that prevents the slide from falling out upward.

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