Precise testing fixture for engine gear chamber

Abstract

The utility model discloses an engine gear chamber precision testing fixture, which belongs to the technical field of engine gear chamber detection, and is characterized by comprising a base and a gear chamber body, the top of the base is fixedly connected with a protective shell, the surface of the protective shell is hollowed, the top of the protective shell is fixedly connected with a detection table, and the detection table is fixedly connected with the gear chamber body. Through the arrangement of the adsorption assembly, the adsorption force generated by the adsorption assembly can enable the gear chamber body to be stably fixed at the top of the detection table, the adsorption mode can better adapt to the shape of the bottom of the gear chamber body, uniform adsorption force can be provided no matter a plane or a surface with a certain radian, and the detection accuracy is improved. The position stability of the gear chamber body in the detection process is ensured, the detection precision can be improved, the angle of the gear chamber body can be conveniently changed by arranging the adjusting assembly, angle change can be easily achieved under the condition that the gear chamber body is not installed again, and the comprehensiveness and flexibility of detection are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine gear room detection technical field, especially a kind of engine gear room precision gauge. BACKGROUND

[0002] Engine gear room is the shell for engine gear installation and fixation, and is an important component of engine, when producing gear room, gear room is obtained by casting first, then corresponding processing is carried out to gear room to obtain gear room finished product, when obtaining gear room by casting, the precision detection is carried out to gear room, to ensure that the gear room casted is qualified product, and parallelism detection belongs to one of precision detection.

[0003] The shape of the existing engine gear room is usually irregular, and its surface has various protrusions, depressions, holes and curved surfaces. The traditional clamp may not closely fit its shape, resulting in insecure fixation or damage to the gear room during the fixation process. Moreover, for a complex gear room with multiple mounting planes and shaft holes, after being fixed in position, it may only detect the parallelism between part of the planes or the parallelism of the planes and the shaft holes in one direction, making it inconvenient to detect the parallelism in multiple directions, thereby reducing the use flexibility.

[0004] Therefore, an engine gear room precision gauge is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing an engine gear room precision gauge, which can solve the problem that the shape of the existing engine gear room is usually irregular, and its surface has various protrusions, depressions, holes and curved surfaces. The traditional clamp may not closely fit its shape, resulting in insecure fixation or damage to the gear room during the fixation process. Moreover, for a complex gear room with multiple mounting planes and shaft holes, after being fixed in position, it may only detect the parallelism between part of the planes or the parallelism of the planes and the shaft holes in one direction, making it inconvenient to detect the parallelism in multiple directions, thereby reducing the use flexibility.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an engine gear room precision gauge, comprising a base and a gear room body, the top of the base is fixedly connected with a protective shell, and the surface of the protective shell is hollow, the top of the protective shell is fixedly connected with a detection table, and the gear room body is arranged on the top of the detection table, a suction assembly is rotatably connected in the detection table, an adjusting assembly is arranged at the bottom of the suction assembly, the adjusting assembly comprises a connecting plate, a rack is fixedly connected to the top of the detection table, and a parallelism detector is arranged in the rack.

[0007] The adsorption assembly comprises a vacuum pump, an exhaust pipe, a suction disc, a metal pipe and an adsorption hole, the vacuum pump is arranged in the inside of the protective shell, the exhaust pipe is fixedly communicated with the gas outlet end of the vacuum pump, the suction disc is rotationally connected in the inside of the detection table, the bottom end of the metal pipe is fixedly communicated with the gas inlet end of the vacuum pump, the top end of the metal pipe penetrates through the protective shell and is fixedly communicated with the suction disc, and the adsorption hole is arranged on the surface of the suction disc.

[0008] Preferably, the vacuum pump is fixedly connected to the top of the connecting plate, the bottom of the connecting plate is fixedly connected with an adjusting rod, and the bottom end of the adjusting rod is rotationally connected to the bottom of the inner wall of the protective shell.

[0009] Preferably, a transmission gear is fixedly sleeved on the surface of the adjusting rod, and a moving toothed plate is meshingly connected to the front side of the transmission gear.

[0010] Preferably, a telescopic air cylinder is fixedly connected to the left side of the inner wall of the protective shell, and the telescopic end of the telescopic air cylinder is fixedly connected to the left side of the moving toothed plate.

[0011] Preferably, an installation cavity is fixedly connected to the bottom of the inner wall of the rack, a lead screw is rotationally connected in the inside of the installation cavity, a moving block is threadedly connected to the surface of the lead screw, an electric push rod is fixedly connected to the bottom of the moving block, and the parallelism detector is fixedly connected to the telescopic end of the electric push rod.

[0012] Preferably, a guide rod is fixedly connected in the inside of the installation cavity, and the moving block penetrates through the guide rod and is slidingly connected with the guide rod.

[0013] Preferably, a T-shaped sliding block is fixedly connected to the bottom of the moving toothed plate, and a T-shaped sliding groove that is used in cooperation with the T-shaped sliding block is arranged on the top of the base.

[0014] Preferably, a controller is arranged on the front side of the protective shell, a servo motor is fixedly connected to the right side of the rack and the output end of the servo motor is fixedly connected with the lead screw, and the parallelism detector, the vacuum pump, the telescopic air cylinder, the electric push rod and the servo motor are electrically connected with the controller.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The adsorption assembly is arranged, the adsorption force generated by the adsorption assembly can stably fix the gear chamber body on the top of the detection table, this kind of adsorption mode can better adapt to the shape of the bottom of the gear chamber body, can provide uniform adsorption force no matter the surface is plane or has certain radian, ensures the position stability of the gear chamber body in the detection process, and is favorable for improving the detection precision.

[0017] 2、The adjusting assembly can conveniently change the angle of the gear chamber body, which is very beneficial to parallelism detection of the gear chamber body, because when detecting the parallelism between different planes or between a plane and an axis hole axis, detection is often required from multiple angles, and the adjusting assembly enables easy angle change without reinstalling the gear chamber body, improving the comprehensiveness and flexibility of detection. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structural view of the engine gear chamber precision gauge of the utility model;

[0019] Figure 2 It is a structural section view of the protective shell of the utility model;

[0020] Figure 3 It is a partial connection schematic view of the adsorption assembly and the adjusting assembly of the utility model;

[0021] Figure 4 It is a structural schematic view of the adsorption assembly of the utility model;

[0022] Figure 5 It is a bottom view of the installation cavity of the utility model.

[0023] In the figure, 1, base; 2, gear chamber body; 3, protective shell; 4, detection table; 5, adsorption assembly; 501, vacuum pump; 502, exhaust pipe; 503, suction cup; 504, metal pipe; 505, adsorption hole; 6, adjusting assembly; 601, connecting plate; 602, adjusting rod; 603, transmission gear; 604, moving toothed plate; 605, telescopic air cylinder; 7, rack; 8, parallelism detector; 9, installation cavity; 10, lead screw; 11, moving block; 12, electric push rod; 13, guide rod; 14, T-shaped sliding block; 15, controller; 16, servo motor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides technical schemes:

[0026] The utility model provides an engine gear chamber precision gauge, including base 1 and gear chamber body 2, the top of base 1 is fixedly connected with protective casing 3 and the surface of protective casing 3 is hollowly arranged, the top of protective casing 3 is fixedly connected with detection table 4 and gear chamber body 2 is arranged at the top of detection table 4, the inside rotationally connected with adsorption subassembly 5 of detection table 4, the bottom of adsorption subassembly 5 is provided with adjusting assembly 6, and adjusting assembly 6 includes connecting plate 601, the top of detection table 4 is fixedly connected with rack 7, and the inside of rack 7 is provided with parallelism detector 8,

[0027] Adsorption subassembly 5 includes vacuum pump 501, exhaust pipe 502, suction disc 503, metal pipe 504 and adsorption hole 505, vacuum pump 501 is arranged in the inside of protective casing 3, exhaust pipe 502 is fixedly communicated with the air outlet end of vacuum pump 501, suction disc 503 is rotatably connected in the inside of detection table 4, the bottom end of metal pipe 504 is fixedly communicated with the air inlet end of vacuum pump 501, the top end of metal pipe 504 penetrates protective casing 3 and is fixedly communicated with suction disc 503, and adsorption hole 505 is formed in the surface of suction disc 503.

[0028] In the embodiment: by setting adsorption subassembly 5, vacuum pump 501 can extract the air in the inside of suction disc 503 through exhaust pipe 502, then is discharged to the outside of protective casing 3 through exhaust pipe 502, makes the inside of suction disc 503 form negative pressure environment, along with the air being extracted, the surface air pressure of suction disc 503 and gear chamber body 2 contact is reduced, and the outside atmospheric pressure is relatively higher, under the action of the air pressure difference, the outside atmospheric pressure will be tightly pressed on suction disc 503 with gear chamber body 2, to can realize the adsorption fixation of gear chamber body 2.

[0029] Specifically, as shown in Figure 2 , Figure 4 Vacuum pump 501 is fixedly connected at the top of connecting plate 601, the bottom of connecting plate 601 is fixedly connected with adjusting rod 602, and the bottom end of adjusting rod 602 is rotatably connected with the bottom of the inner wall of protective casing 3.

[0030] Specifically, as shown in Figure 2 Adjusting rod 602 is fixedly sleeved with transmission gear 603 on the surface, and movable toothed plate 604 is meshingly connected to the front side of transmission gear 603.

[0031] Specifically, as shown in Figure 2 The left side of the inner wall of protective casing 3 is fixedly connected with telescopic pneumatic cylinder 605, and the telescopic end of telescopic pneumatic cylinder 605 is fixedly connected with the left side of movable toothed plate 604.

[0032] In the embodiment: through the above setting, when the detection angle of the gear chamber body 2 needs to be adjusted, the telescopic cylinder 605 is started to drive the movable gear plate 604 to move left or right, the movable gear plate 604 can convert the linear motion into the rotary motion of the transmission gear 603 through the meshing action with the transmission gear 603, and the transmission gear 603 can drive the adjusting rod 602 and the adsorption assembly 5 to rotate synchronously when the transmission gear 603 rotates, so that the angle adjustment effect of the gear chamber body 2 can be achieved.

[0033] Specifically, as shown in Figure 5 , the bottom of the inner wall of the rack 7 is fixedly connected with a mounting cavity 9, the inside of the mounting cavity 9 is rotatably connected with a lead screw 10, the surface of the lead screw 10 is threadedly connected with a moving block 11, the bottom of the moving block 11 is fixedly connected with an electric push rod 12, and the parallelity detector 8 is fixedly connected with the telescopic end of the electric push rod 12.

[0034] Specifically, as shown in Figure 5 , the inside of the mounting cavity 9 is fixedly connected with a guide rod 13, and the moving block 11 penetrates through the guide rod 13 and is slidably connected with the guide rod 13.

[0035] In the embodiment: through the above setting, when the detection angle of the gear chamber body 2 needs to be adjusted, the telescopic cylinder 605 is started to drive the movable gear plate 604 to move left or right, the movable gear plate 604 can convert the linear motion into the rotary motion of the transmission gear 603 through the meshing action with the transmission gear 603, and the transmission gear 603 can drive the adjusting rod 602 and the adsorption assembly 5 to rotate synchronously when the transmission gear 603 rotates, so that the angle adjustment effect of the gear chamber body 2 can be achieved.

[0036] Specifically, as shown in Figure 2 , the bottom of the movable gear plate 604 is fixedly connected with a T-shaped sliding block 14, and the top of the base 1 is provided with a T-shaped sliding groove matched with the T-shaped sliding block 14.

[0037] Specifically, as shown in Figure 1 , Figure 2 , Figure 4 , the front side of the protective shell 3 is provided with a controller 15, the right side of the rack 7 is fixedly connected with a servo motor 16, and the output end of the servo motor 16 is fixedly connected with the lead screw 10, the parallelity detector 8, the vacuum pump 501, the telescopic cylinder 605, the electric push rod 12 and the servo motor 16 are all electrically connected with the controller 15.

[0038] In the embodiment: by setting T-shaped slot and T-shaped slider 14, the cooperation between them can effectively reduce friction and shaking, ensure the precision of the moving tooth plate 604 in the movement process, so that the moving tooth plate 604 can accurately transmit power when the driving gear rotates to adjust the angle of the adsorption assembly 5, realize accurate angle adjustment, by setting the servo motor 16 and the controller 15, the servo motor 16 can provide accurate rotating power for the lead screw 10, thereby improving the moving precision of the parallelism detector 8, and the controller 15 can centrally control and coordinate the working state of each component, thereby ensuring that the whole detection process is orderly and accurately carried out.

[0039] Working principle: when detecting the parallelism of the gear chamber body 2, first place the gear chamber body 2 on the top of the suction cup 503, then start the vacuum pump 501 through the controller 15, the vacuum pump 501 can exhaust the air in the suction cup 503 through the exhaust pipe 502, so that a negative pressure environment is formed in the suction cup 503, as the air is exhausted, the surface pressure of the suction cup 503 in contact with the gear chamber body 2 is lowered, while the atmospheric pressure outside is relatively high, under the action of the pressure difference, the atmospheric pressure outside will tightly press the gear chamber body 2 on the suction cup 503, so that the adsorption and fixation of the gear chamber body 2 can be realized, then start the servo motor 16, the servo motor 16 will drive the lead screw 10 to rotate, the lead screw 10 will drive the moving block 11 on its surface to move after rotating, the moving block 11 will drive the electric push rod 12 and the parallelism detector 8 to move together when moving, then move the parallelism detector 8 to the appropriate position according to the use requirement, start the electric push rod 12, the electric push rod 12 will accurately align the parallelism detector 8 to the part of the gear chamber body 2 to be detected, then the parallelism of the gear chamber body 2 can be detected, when the angle of the gear chamber body 2 needs to be adjusted, start the telescopic cylinder 605, the telescopic cylinder 605 will push the moving tooth plate 604 to move left and right when extending and retracting, when the moving tooth plate 604 moves, it will drive the transmission gear 603 to rotate, with the rotation of the transmission gear 603, the adjusting rod 602, the adsorption assembly 5 and the gear chamber body 2 will rotate synchronously, so that the angle of the gear chamber body 2 can be flexibly adjusted.

[0040] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An engine gear chamber precision gauge, comprising a base (1) and a gear chamber body (2), characterized in that: The top of the base (1) is fixedly connected with a protective shell (3), and the surface of the protective shell (3) is provided with a hollow structure, the top of the protective shell (3) is fixedly connected with a detection table (4), and the gear chamber body (2) is arranged on the top of the detection table (4), the inside of the detection table (4) is rotatably connected with a suction assembly (5), the bottom of the suction assembly (5) is provided with an adjusting assembly (6), the adjusting assembly (6) comprises a connecting plate (601), the top of the detection table (4) is fixedly connected with a rack (7), and the inside of the rack (7) is provided with a parallelism detector (8). The suction assembly (5) comprises a vacuum pump (501), an exhaust pipe (502), a suction disc (503), a metal pipe (504) and a suction hole (505), the vacuum pump (501) is arranged in the inside of the protective shell (3), the exhaust pipe (502) is fixedly communicated with the gas outlet end of the vacuum pump (501), the suction disc (503) is rotatably connected in the inside of the detection table (4), the bottom end of the metal pipe (504) is fixedly communicated with the air inlet end of the vacuum pump (501), the top end of the metal pipe (504) penetrates through the protective shell (3) and is fixedly communicated with the suction disc (503), and the suction hole (505) is arranged on the surface of the suction disc (503).

2. The precision engine gear chamber gauge of claim 1, wherein: The vacuum pump (501) is fixedly connected to the top of the connecting plate (601), and the bottom of the connecting plate (601) is fixedly connected with an adjusting rod (602).

3. The precision engine gear chamber gauge of claim 2, wherein: The surface of the adjusting rod (602) is fixedly sleeved with a transmission gear (603), and the front side of the transmission gear (603) is engagedly connected with a moving toothed plate (604).

4. The precision engine gear chamber gauge of claim 3, wherein: The left side of the inner wall of the protective shell (3) is fixedly connected with a telescopic air cylinder (605), and the telescopic end of the telescopic air cylinder (605) is fixedly connected with the left side of the moving toothed plate (604).

5. The precision engine gear chamber gauge of claim 1, wherein: The bottom of the inner wall of the rack (7) is fixedly connected with a mounting cavity (9), the inside of the mounting cavity (9) is rotatably connected with a lead screw (10), the surface of the lead screw (10) is threadedly connected with a moving block (11), the bottom of the moving block (11) is fixedly connected with an electric push rod (12), and the parallelism detector (8) is fixedly connected with the telescopic end of the electric push rod (12).

6. An engine gear chamber precision gauge according to claim 5, characterized in that: The inside of the mounting cavity (9) is fixedly connected with a guide rod (13), and the moving block (11) penetrates through the guide rod (13) and is slidably connected with the guide rod (13).

7. The precision engine gear chamber gauge of claim 3, wherein: The bottom of the moving toothed plate (604) is fixedly connected with a T-shaped sliding block (14), and the top of the base (1) is provided with a T-shaped sliding groove matched with the T-shaped sliding block (14).

8. The precision engine gear chamber gauge of claim 5, wherein: The front side of the protective shell (3) is provided with a controller (15), the right side of the rack (7) is fixedly connected with a servo motor (16), and the output end of the servo motor (16) is fixedly connected with the lead screw (10), and the parallelism detector (8), the vacuum pump (501), the telescopic air cylinder (605), the electric push rod (12) and the servo motor (16) are electrically connected with the controller (15).

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