Angle testing machine

Abstract

The utility model relates to the technical field of automobile detection, in particular to an angle testing machine which comprises a tool position used for placing a throttle valve and an encoder used for measuring the opening degree of the throttle valve, the encoder and a throttle valve shaft are in butt joint through a rotating shaft, the tool position comprises a base, an adjusting device and a supporting table, and the adjusting device and the supporting table are both arranged on the base. An anti-skid film is arranged on the supporting table; the adjusting device comprises a sliding mechanism and a telescopic mechanism, the sliding mechanism comprises a guide rail and a sliding block, a U-shaped positioning block is arranged on the sliding block, the encoder is arranged at one end of the U-shaped positioning block, the rotating shaft is arranged at the other end of the U-shaped positioning block, a coupler is arranged between the encoder and the rotating shaft, the rotating shaft is connected with the encoder through the coupler, and a notch is formed in one end of the rotating shaft; the telescopic mechanism comprises a telescopic rod, and one end of the telescopic rod is fixedly connected with the U-shaped positioning block. The utility model provides an angle testing machine, which can solve the problem of poor universality in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile detection, in particular to an angle testing machine. Background Art

[0002] The throttle valve (also called the throttle valve) is a controllable valve that controls the air entering the engine. After the gas enters the intake pipe, it mixes with gasoline to become a combustible mixture, which then burns to produce work. The throttle valve is one of the most important components of the current electronic fuel injection vehicle engine system. It is connected to the air filter at the top and the engine block at the bottom, and is called the throat of the car engine.

[0003] Therefore, for the engine system of the electronic fuel injection vehicle, it is very necessary to test the relationship between the rotation angle of the throttle valve and the rotation voltage of the throttle motor to check the electrical control accuracy of the throttle. In the existing automobile detection process, the throttle is generally electrically connected to the throttle actuator, and the voltage signal is fed back to the data acquisition controller through the throttle actuator. As in the prior art, publication number: CN100470029C, discloses a device for calibrating the throttle opening, including a rotary encoder, a throttle actuator and a data acquisition controller, the input end of the rotary encoder is used to be fixedly connected to the throttle, the output end is connected to an input end of the data acquisition controller, the other input end of the data acquisition controller is connected to the throttle, the output end of the data acquisition controller is connected to the throttle actuator, the data acquisition controller controls the rotation of the throttle actuator, the throttle actuator drives the throttle to change the opening, the rotary encoder measures the opening of the throttle, the data acquisition controller collects the opening and the output voltage of the throttle, and outputs a pulse signal to the throttle actuator. The prior art can measure the throttle opening and the throttle output voltage at the same time.

[0004] However, the prior art still has the following technical problems:

[0005] 1. The tooling used to fix the encoder and the throttle in the prior art is fixed in position, and the tooling cannot be adaptively adjusted so that throttles of different models and sizes can be fixed on the tooling and the throttle opening and throttle output voltage can be measured, resulting in poor versatility;

[0006] 2. Due to the lack of auxiliary alignment devices in the prior art, it is impossible to achieve rapid alignment when aligning the encoder with the throttle. Utility Model Content

[0007] The utility model provides an angle testing machine, which can solve the problem of poor universality of the prior art.

[0008] The present application provides the following technical solutions: an angle testing machine, comprising a tooling position for placing a throttle, and an encoder for measuring the throttle opening, and the encoder and the throttle shaft are connected via a rotating shaft, the tooling position comprises a base, an adjusting device and a supporting platform, the adjusting device and the supporting platform are both arranged on the base, and an anti-slip film is arranged on the supporting platform; the adjusting device comprises a sliding mechanism and a telescopic mechanism, the sliding mechanism comprises a guide rail and a slider, a U-shaped positioning block is arranged on the slider, the encoder is arranged at one end of the U-shaped positioning block, and a rotating shaft is arranged at the other end of the U-shaped positioning block, a coupling is arranged between the encoder and the rotating shaft, the rotating shaft and the encoder are connected via a coupling, and a slot is opened at one end of the rotating shaft; the telescopic mechanism comprises a telescopic rod, and one end of the telescopic rod is fixedly connected to the U-shaped positioning block.

[0009] Beneficial effects:

[0010] 1. The encoder on the regulating device is connected to the throttle shaft of the throttle valve through a rotating shaft, so as to realize real-time measurement of the throttle valve plate opening as the throttle shaft rotates.

[0011] 2. The adjustment device and the support platform are both arranged on the base, and the support platform is provided with an anti-skid film. The anti-skid film can be used to protect the contact surface between the throttle valve and the support platform when the throttle valve is placed on the support platform, and also increases the friction force of the throttle valve on the support platform, making it easier to fix the throttle valve on the support platform.

[0012] 3. The adjusting device includes a sliding mechanism and a telescopic mechanism. The sliding mechanism includes a guide rail and a slider. A U-shaped positioning block is arranged on the slider. The encoder is arranged at one end of the U-shaped positioning block. The rotating shaft is arranged at the other end of the U-shaped positioning block. A coupling is arranged between the encoder and the rotating shaft. The rotating shaft is arranged at the other end of the U-shaped positioning block. The rotating shaft and the encoder are connected through the coupling. A notch is opened at one end of the rotating shaft. The telescopic mechanism includes a telescopic rod. One end of the telescopic rod is fixedly connected to the U-shaped positioning block.

[0013] The adjusting device is arranged in this way, and the sliding mechanism cooperates with the telescopic mechanism, so that the rotating shaft fixed on the U-shaped positioning block can slide on the slide rail as the telescopic mechanism is extended and retracted, thereby changing the relative position of the end of the rotating shaft with the slot, and leaving enough space on the support table to place throttles of different models; a fixed encoder is passed through one end of the U-shaped positioning block, and a rotating shaft is passed through the other end. The encoder and the rotating shaft are connected by a coupling, which can ensure that the slot of the rotating shaft cooperates with the straight-line end of the valve plate shaft of the throttle. When the throttle motor rotates, the valve plate rotates and drives the rotating shaft and the encoder to rotate together, thereby ensuring that the encoder can accurately measure the rotation angle.

[0014] Furthermore, the telescopic mechanism includes a support ear and a telescopic rod, the telescopic rod includes a handle and a rod body, the support ear is fixed on the base, and a through hole is provided on the support ear; the telescopic rod body passes through the through hole provided on the support ear and is slidably connected to the support ear, the end of the rod body is fixedly connected to the U-shaped positioning block, and a spring is provided on the rod body between the U-shaped positioning block and the support ear.

[0015] Beneficial effect: the support ear is fixed on the base, and the telescopic rod body passes through the through hole set on the support ear, so that the telescopic rod handle is stuck on one side of the support ear, and the end of the telescopic rod body is fixed to the U-shaped positioning block, and a spring is set on the rod body, so that when the telescopic rod handle is stretched in the direction away from the support ear, the U-shaped positioning block slides on the guide rail, so that the rotating shaft is away from the top of the support platform, which is convenient for placing the throttle on the support platform. After the throttle is fixed on the support platform, the force of the stretching handle is reduced, so that the U-shaped positioning block moves toward the support platform under the elastic force of the spring, and the spring will provide a pre-tightening force to the rotating shaft on the U-shaped positioning block, so that the rotating shaft is pressed after docking with the throttle shaft, thereby quickly completing the alignment.

[0016] Furthermore, the inner wall of the notch is configured as an inclined surface.

[0017] Beneficial effect: Such an arrangement is beneficial to the quick docking of the straight-line end of the rotating shaft and the throttle shaft.

[0018] Furthermore, an oiling nozzle is arranged on the sliding block.

[0019] Beneficial effect: An oiling nozzle is arranged at the end or side of the slider to inject lubricating oil, so that the contact surface between the slider and the guide rail is lubricated, ensuring that the telescopic mechanism can effectively pull the U-shaped positioning block and change its relative position.

[0020] Furthermore, the data acquisition controller includes a PLC and a display screen.

[0021] Beneficial effects: PLC can be used to control the rotation of the motor inside the throttle, and the display screen can be used to receive the motor voltage signal transmitted from the throttle position sensor of the throttle and the throttle valve opening signal of the transcoder, thereby realizing the simultaneous measurement of the throttle opening and the throttle output voltage.

[0022] Furthermore, the rotating shaft includes a transition shaft and a connecting shaft, a rectangular groove is arranged at one end of the transition shaft, a rectangular protrusion matching the rectangular groove is arranged at one end of the connecting shaft, and the rectangular protrusion is interference fit with the rectangular groove.

[0023] Beneficial effects: By splitting the rotating shaft into a transition shaft and a connecting shaft, the transition shaft and the connecting shaft can be replaced as needed, which can improve maintenance efficiency. The transition shaft and the connecting shaft are connected by a rectangular protrusion and a rectangular groove, which can prevent the transition shaft and the connecting shaft from rotating relative to each other.

[0024] Furthermore, an electric cylinder and a sliding rod are arranged between the U-shaped positioning block and the slider. The electric cylinder is fixed on the slider. The electric cylinder includes a piston rod. The end of the piston rod is fixed to the bottom of the U-shaped positioning block. One end of the sliding rod is fixed to the slider, and the other end of the sliding rod passes through the bottom of the U-shaped positioning block and is slidably connected to the U-shaped positioning block.

[0025] Beneficial effect: With this arrangement, when the piston rod of the electric cylinder is raised or lowered, the U-shaped block can be driven to rise or fall on the slide bar, thereby effectively adjusting the vertical position of the U-shaped positioning block to facilitate adaptation to the height of throttles of different models.

[0026] Furthermore, the support platform is configured as two pieces stacked up and down, and the two support platforms are respectively provided with mutually cooperating studs and adjustment holes with internal threads so that the upper and lower support platforms can be screwed and fixed into a whole, and the support block located at the lower layer is fixed to the base.

[0027] Beneficial effect: By rotating the upper support platform and changing the degree of tightening of the adjustment hole on the stud, the overall height of the two stacked support platforms can be changed. This is beneficial when facing throttles of different heights. The overall height of the support platform can be adjusted as needed, thereby improving the versatility of the angle testing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the adjusting device of the first embodiment of the angle testing machine of the utility model;

[0029] Figure 2 This is a schematic diagram of the installation of the throttle valve of the first embodiment of the angle testing machine of the utility model fixed on the adjusting device;

[0030] Figure 3 It is a front view of the second embodiment of the angle testing machine of the utility model;

[0031] Figure 4 This is a front view of the third embodiment of the angle testing machine of the utility model;

[0032] Figure 5 It is a front view of the fourth embodiment of the angle testing machine of the utility model. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The marks in the drawings in the specification include: base 1, support platform 2, anti-slip film 21, stud 22, adjustment hole 23, positioning hole 24, guide rail 3, slider 4, oiling nozzle 41, U-shaped positioning block 5, stepped hole 51, ball bearing 52, electric cylinder 53, slide rod 54, encoder 6, coupling 7, rotating shaft 8, notch 81, transition shaft 82, connecting shaft 83, lug 9, through hole 91, telescopic rod 10, handle 101, rod body 102, spring 11, throttle body 12, motor 121, throttle position sensor 122, throttle shaft 123, throttle plate 124, mounting hole 125.

[0035] Embodiment 1

[0036] This embodiment discloses an angle tester, which is used to place a throttle so as to measure the throttle opening and the voltage corresponding to the opening. The throttle includes a throttle body 12, and a throttle plate 124 is arranged in the channel of the throttle body 12, which is used to control the flow rate of the channel; a throttle shaft 123 is screwed on the throttle plate, and the throttle shaft 123 is driven by a motor 121 to adjust the throttle plate opening. A throttle position sensor 122 is arranged on one side of the throttle body. A mounting hole 125 is arranged circumferentially at the bottom of the throttle body 12.

[0037] like Figure 1 , Figure 2 As shown, the angle tester includes a tooling station for placing the throttle and an encoder 6 for measuring the throttle opening, and the encoder 6 and the throttle shaft 123 are docked via a docking shaft 8. The tooling station includes a base 1, an adjustment device and a support platform, and the adjustment device and the support platform 2 are both arranged on the base 1.

[0038] An anti-skid film 21 is provided on the support platform 2 (specifically, the anti-skid film 21 can be a PVC plastic sheet or other wear-resistant and anti-skid materials, and a PVC plastic sheet is selected in this embodiment), and the support platform 2 is used to place the throttle to be measured (specifically, the support platform 2 is also provided with threaded holes corresponding to the four mounting holes on the circumference of the throttle, so as to facilitate fixing the throttle to the support platform 2 with bolts).

[0039] The adjusting device includes a sliding mechanism and a telescopic mechanism, one end of the telescopic mechanism is fixed to the sliding mechanism, the sliding mechanism includes a guide rail 3 and a slider 4 (in order to facilitate lubrication of the guide rail 3 and the slider 4 and thus reduce the friction of the slider 4 moving on the guide rail 3, an oiling nozzle 41 is provided at the end of the slider 4 for injecting lubricating oil), a U-shaped positioning block 5 is provided on the slider 4, an encoder 6 is fixed at one end of the U-shaped positioning block 5 (specifically, in this embodiment, the encoder 6 is a photoelectric encoder), a rotating shaft 8 passes through the U-shaped positioning block 5 and extends to a side close to the support platform 2 (specifically, the rotating shaft 8 can be a whole cylinder, or can be The rotating shaft 8 is connected to the encoder 6 via a coupling 7, and a slot 81 is provided at one end of the rotating shaft 8 (specifically, in the present embodiment, in order to facilitate the connection between the rotating shaft 8 and the throttle shaft 123, the inner wall of the slot 81 is set to an inclined surface, so that the two inner walls of the slot 81 form an "eight" shape, so that the outer side of the slot 81 is wider to facilitate the insertion of the throttle shaft 123 into the slot 81, and the inner side of the slot 81 is narrower to facilitate the clamping and fixing of the throttle shaft 123 after connection with the rotating shaft 8, thereby improving the connection efficiency between the rotating shaft 8 and the throttle shaft 123).

[0040] The telescopic mechanism includes a support ear 9 and a telescopic rod 10. The support ear 9 is fixed on the base 1 (specifically, the support ear 9 is welded and fixed to one end of the base 1, and a through hole 91 is opened on the support ear 9). The telescopic rod 10 includes a handle 101 and a rod body 102 (specifically, the diameter of the handle 101 is larger than the diameter of the rod body 102). The rod body 102 passes through the through hole 91 (specifically, the diameter of the through hole 91 is smaller than the diameter of the handle 101, and the rod body 102 is inserted into the through hole 91 and can slide inside the through hole 91), so that the handle 101 is against one side of the support ear 9, and the end of the rod body 102 is fixedly connected to the U-shaped positioning block 5, and a spring 11 is sleeved on the rod body 102 between the U-shaped positioning block 5 and the support ear 9.

[0041] The angle tester also includes a data acquisition controller, which includes a PLC and a display screen. The encoder 6, the throttle motor 121, the throttle position sensor 122, and the display screen are all electrically connected to the PLC. The PLC controls the rotation of the throttle motor 121 to change the opening of the throttle plate 124. At the same time, the throttle shaft 123 drives the encoder 6 to rotate and measure the opening of the throttle. The PLC receives the throttle opening signal measured by the encoder 6 and the output voltage of the throttle position sensor 122 and feeds it back to the motor 121. After receiving the signal, the motor 121 continues to rotate at a fixed angle. During the process, the opening of the throttle plate 124 and the output voltage of the throttle position sensor 122 will also be fed back to the display screen for display, so as to check the corresponding relationship between the throttle opening and the output voltage of the throttle position sensor 122.

[0042] Here’s how to use it:

[0043] Pull the handle 101 to move the rotating shaft 8 away from the support platform 2, then fix the throttle to be measured on the support platform 2, and then release the handle 101, so that the rotating shaft 8 moves toward the support platform 2 under the action of the spring 11, and the notch 81 is inserted into the straight end of the throttle shaft 123 to achieve docking, and the elastic force of the spring 11 can also assist in further pressing the two. Therefore, using this testing machine, different types of throttles can be positioned and fixed on the tooling position. When different types of throttles are to be placed on the support platform 2, the handle 101 can be pulled according to the length of the throttle shaft 123 of the throttle to facilitate the docking of the rotating shaft 8 and the throttle shaft 123.

[0044] Embodiment 2

[0045] like Figure 3 As shown, the difference between this embodiment and the first embodiment is that: 1) the rotating shaft 8 is set to a docking type. Specifically, the rotating shaft 8 includes a transition shaft 82 and a connecting shaft 83. The first docking method: a rectangular groove is set at one end of the transition shaft 82, and a rectangular protrusion matching the rectangular groove is set at one end of the connecting shaft 83, and the rectangular protrusion can be interference-fitted with the rectangular groove; the second docking method: a rectangular groove is set at one end of the transition shaft 82, and a rectangular groove is set at one end of the connecting shaft 83, and one end of the transition shaft 82 can be interference-fitted with one end of the rectangular groove of the connecting shaft 83; in this embodiment, the first docking method is selected.

[0046] 2) A stepped hole 51 is formed on the U-shaped positioning block 5. Two ball bearings 52 are interference fit or welded in the stepped hole 51. The ball bearings 52 are interference fit with the transition shaft 82 and the connecting shaft 83 respectively.

[0047] The rotating shaft 8 and the U-shaped positioning block 5 are arranged in this way. Because the rotating shaft 8 is a docking type, the connecting shaft 83 can be replaced according to different models to match different models of throttle shafts 123, thereby improving the versatility of the angle testing machine, and when repairing the rotating shaft 8, it is only necessary to remove the connecting shaft 83 or the transition shaft 82, which is conducive to improving the maintenance efficiency. The stepped hole 51 is opened on the U-shaped positioning block 5, which can cooperate with the ball bearing 52 to enhance the support effect of the transition shaft 82 and the connecting shaft 83, and reduce the friction between the transition shaft 82 and the connecting shaft 83 and the U-shaped positioning block 5, which is conducive to improving the measurement accuracy of the encoder 6.

[0048] Embodiment 3

[0049] like Figure 4As shown, the difference between this embodiment and the first embodiment is that: 1) an electric cylinder 53 and a slide bar 54 are arranged between the U-shaped positioning block 5 and the slider 4, the bottom of the electric cylinder 53 is welded and fixed to the slider 4, the end of the piston rod of the electric cylinder 53 is welded and fixed to the bottom of the U-shaped positioning block 5, one end of the slide bar 54 is welded and fixed to the slider 4, and the other end of the slide bar 54 penetrates the bottom of the U-shaped positioning block 5 and is slidably connected to the U-shaped positioning block 5. 2) a through hole 91 is opened on the support ear 9, and the specific through hole 91 is strip-shaped, the width of the strip-shaped through hole is smaller than the inner diameter of the spring 11 and is greater than or equal to the radius of the rod body 102 of the telescopic rod 10, and is smaller than the radius of the handle 101 of the telescopic rod 10, and the length of the strip-shaped through hole corresponds to the telescopic stroke of the piston rod of the electric cylinder 53.

[0050] With this arrangement, the U-shaped positioning block 5 can be raised and lowered on the slide block 4 by utilizing the extension and retraction of the electric cylinder 53, so that the height of the rotating shaft 8 on the U-shaped positioning block 5 corresponds to different types of throttles, thereby improving the versatility of the angle testing machine.

[0051] Embodiment 4

[0052] like Figure 5 As shown, the difference between this embodiment and the first embodiment is that: 1) the two support platforms 2 are respectively provided with studs 22 and adjustment holes 23 with internal threads that match each other, the support platform 2 with the studs 22 is fixed on the base 1, and the support platform 2 with the adjustment holes 23 is fixed by the studs 22. 2) The two support platforms 2 are rectangular blocks, overlapping each other, and the two are of the same size. Furthermore, corresponding positioning holes 24 are opened on one side of the two, and positioning pins are inserted into the positioning holes 24.

[0053] With this arrangement, the upper and lower overlapping support platforms 2 can adjust the overall height of the two support platforms 2 by rotating the upper support platform 2. After rotating it one circle, the two support platforms 2 are fixed by positioning pins passing through the positioning holes 24, so that the two support platforms 2 will not undergo rotational displacement during measurement.

[0054] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An angle testing machine, comprising a tooling position for placing a throttle and an encoder for measuring the throttle opening, wherein the encoder and the throttle shaft are connected via a rotating shaft, characterized in that: The tooling station includes a base, an adjustment device and a support platform, the adjustment device and the support platform are arranged on the base, and an anti-slip film is arranged on the support platform; the adjustment device includes a sliding mechanism and a telescopic mechanism, the sliding mechanism includes a guide rail and a slider, a U-shaped positioning block is arranged on the slider, an encoder is arranged at one end of the U-shaped positioning block, a rotating shaft is arranged at the other end of the U-shaped positioning block, a coupling is arranged between the encoder and the rotating shaft, the rotating shaft and the encoder are connected through the coupling, and a slot is opened at one end of the rotating shaft; the telescopic mechanism includes a telescopic rod, and one end of the telescopic rod is fixedly connected to the U-shaped positioning block.

2. The angle testing machine according to claim 1, characterized in that: The telescopic mechanism also includes a support ear, which is fixed on the base and is provided with a through hole; the telescopic rod includes a handle and a rod body, the telescopic rod body passes through the through hole provided on the support ear and is slidably connected to the support ear, the end of the rod body is fixedly connected to the U-shaped positioning block, and a spring is provided on the rod body between the U-shaped positioning block and the support ear.

3. The angle testing machine according to claim 1, characterized in that: The inner wall of the notch is configured as an inclined surface.

4. The angle testing machine according to claim 1, characterized in that: The sliding block is provided with an oiling nozzle.

5. The angle testing machine according to claim 1, characterized in that: It also includes a data acquisition controller, which includes a PLC and a display screen.

6. The angle testing machine according to any one of claims 1 to 4, characterized in that: The rotating shaft comprises a transition shaft and a connecting shaft. A rectangular groove is arranged at one end of the transition shaft, and a rectangular protrusion matching the rectangular groove is arranged at one end of the connecting shaft. The rectangular protrusion is interference-fitted with the rectangular groove.

7. The angle testing machine according to any one of claims 1 to 4, characterized in that: An electric cylinder and a sliding rod are arranged between the U-shaped positioning block and the slider. The electric cylinder is fixed on the slider. The electric cylinder includes a piston rod. The end of the piston rod is fixed to the bottom of the U-shaped positioning block. One end of the sliding rod is fixed to the slider, and the other end of the sliding rod passes through the bottom of the U-shaped positioning block and is slidably connected to the U-shaped positioning block.

8. The angle testing machine according to any one of claims 1 to 4, characterized in that: The support platform is configured as two blocks stacked up and down, and the two support platforms are respectively provided with mutually matching studs and adjustment holes with internal threads so that the upper and lower support platforms can be screwed and fixed into a whole, and the support block located at the lower layer is fixed to the base.

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