Transmission shaft compression length inspection bench

Abstract

The utility model discloses a transmission shaft compression length inspection bench, relates to the technical field of measurement and detection, and aims to solve the problem of low accuracy of transmission shaft compression length measurement. The transmission shaft compression length inspection bench comprises a rack, a linear rail arranged along the extension direction of the rack is arranged in the rack, and a first synchronous clamping mechanism is arranged at one end of the linear rail and is used for clamping a transmission shaft; the two ends of the compressed position of the transmission shaft are provided with two supports, the second synchronous clamping mechanism is movably arranged at the other end of the linear rail, the second synchronous clamping mechanism is used for clamping the transmission shaft and measuring the position of the transmission shaft before the transmission shaft is compressed, and the second synchronous clamping mechanism is provided with a driving device used for compressing the transmission shaft and further provided with a pressure measuring device. The synchronous mechanisms are arranged on the linear rail, the measuring mechanisms are movably arranged on the linear rail and used for measuring the position of the support, the second synchronous clamping mechanism, the driving device, the pressure measuring device, the synchronous mechanisms and the measuring mechanisms are all connected with the control device, and the control device is used for receiving data and judging and displaying the data.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement and detection, and more specifically to a transmission shaft compression length inspection platform. Background Art

[0002] The drive shaft is an important component connecting the transmission and the drive axle in the automobile transmission system. The automobile drive shaft assembly is mainly composed of a universal joint and a drive shaft. The error in the compressed length after assembly has a great impact on the performance of the automobile.

[0003] The existing operating method is to manually compress the product and then measure it with a tape measure. When measuring the length of the drive shaft assembly, people need to use force to compress the assembly, especially when encountering an assembly with an elastic reset part in the sliding universal joint, more force is required. The labor intensity is high, the measurement error is large, the accuracy is not high, the work efficiency is poor, and the product is easily scrapped.

[0004] Therefore, how to solve the problem of low accuracy in measuring the compressed length of the transmission shaft is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a transmission shaft compression length inspection bench, which can improve the inspection efficiency during the transmission shaft compression process, make the inspection result more accurate, and reduce the loss of the transmission shaft after compression.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A transmission shaft compression length inspection bench, comprising:

[0008] A rack, wherein a linear rail is provided in the rack, and the linear rail is arranged along the extension direction of the rack;

[0009] A first synchronous clamping mechanism is provided at one end of the linear rail, and is used to clamp one end of the transmission shaft. Two brackets are provided at both ends of the compressed position of the transmission shaft;

[0010] A second synchronous clamping mechanism is movably arranged at the other end of the linear rail, and is used to clamp the other end of the transmission shaft and measure the position of the transmission shaft before being compressed. The second synchronous clamping mechanism is provided with a driving device for compressing the transmission shaft, and is also provided with a pressure measuring device for detecting the pressure value applied by the driving device to the transmission shaft;

[0011] There are at least two synchronization mechanisms, at least two synchronization mechanisms are arranged on the linear rail, and the synchronization mechanisms are used to support the transmission shaft;

[0012] There are two measuring mechanisms, which are movably arranged on the linear track and are used to measure the position of the bracket;

[0013] The second synchronous clamping mechanism, the driving device, the pressure measuring device, the synchronous mechanism and the measuring mechanism are all connected to the control device, and the control device is used to receive data and make judgments and displays.

[0014] Preferably, the measuring mechanism comprises:

[0015] A slider that slides along the linear rail;

[0016] A first motor is mounted on the slider through a mounting seat, a gear is provided at the output end of the first motor, the gear is meshed with a rack on the frame, the rack is arranged along the extension direction of the frame, an encoder for calculating the number of rotations of the gear is provided in the first motor, and the first motor is connected to the control device;

[0017] A guide rail used to connect two corresponding mounting seats on the linear rail, the guide rail being arranged perpendicular to the linear rail;

[0018] A measuring ruler movably arranged along the guide rail and used for measuring the position of the bracket;

[0019] A first handle connected to the measuring ruler and used for recording the position of the bracket, the first handle is connected to the control device.

[0020] Preferably, the second synchronous clamping mechanism comprises:

[0021] A movable base plate is arranged to move along the linear rail, a slider matched with the linear rail is provided at the bottom of the movable base plate, a locking device locked with the linear rail is also provided at the bottom of the movable base plate, the locking device is connected to the control device, a first motor connected with the control device is provided on the movable base plate, a gear meshed with the rack is provided at the output end of the first motor, and an encoder is provided in the first motor;

[0022] The hand-cranked clamping device is movably arranged on the movable base plate. The hand-cranked clamping device includes a clamping jaw for clamping and fixing the transmission shaft, and also includes a hand-cranked screw assembly for driving the clamping jaw to open and close. The hand-cranked screw assembly is connected to the pressure measuring device. The hand-cranked clamping device can move in the direction in which the frame extends.

[0023] Preferably, the locking device includes air clamps arranged on both sides of the bottom of the movable base plate, the air clamps are arranged in coordination with the linear rail, the air clamps are connected to the control device, and the air clamps are locked with the linear rail in an initial state.

[0024] Preferably, the driving device comprises a rodless cylinder connected to the control device, and the rodless cylinder drives the hand-cranked clamping device to move along the movable base plate.

[0025] Preferably, the pressure measuring device includes a pressure sensor and a proportional valve connected to the control device, the pressure sensor is arranged on the hand-cranked screw assembly through a mounting plate, the proportional valve is arranged on the movable base plate, and the proportional valve is connected to the rodless cylinder.

[0026] Preferably, the synchronization mechanism comprises:

[0027] A mounting frame is arranged on the linear rail, the mounting frame is arranged perpendicular to the linear rail, and a slideway parallel to the guide rail is arranged on the mounting frame;

[0028] There are two supports, both of which are movably arranged along the slideway, and the supports are synchronously moved in opposite directions or synchronously moved in opposite directions by a second motor, and the second motor is arranged in the mounting frame and connected to the control device;

[0029] The rubber roller is arranged on the support, and the rubber roller is used for supporting the transmission shaft.

[0030] Preferably, a tank chain is also provided on the frame, and the tank chain is arranged along the extending direction of the frame.

[0031] Preferably, the control device includes a controller, a second handle connected to the controller, and a display screen, and the second handle is arranged on the movable base plate.

[0032] Preferably, the second handle is provided with a first button for controlling the opening of the air pliers, a second button for controlling the operation of the rodless cylinder, and a third button for saving data measured by the measuring ruler.

[0033] The transmission shaft compression length inspection bench provided by the utility model comprises a frame, a first synchronous clamping mechanism, a second synchronous clamping mechanism, a driving device, a pressure measuring device, a synchronization mechanism, a measuring mechanism and a control device. Specifically, the second synchronous clamping mechanism, the driving device, the pressure measuring device, the synchronization mechanism and the measuring mechanism are all connected to the control device, and the operation states of the second synchronous clamping mechanism, the driving device, the pressure measuring device, the synchronization mechanism and the measuring mechanism are controlled by the control device. A linear rail arranged along the extension direction thereof is arranged in the frame, the first synchronous clamping mechanism is arranged at one end of the linear rail and is used for clamping one end of the transmission shaft, and the second synchronous clamping mechanism is movably arranged at the other end of the linear rail and is used for clamping the other end of the transmission shaft. The transmission shaft is clamped by arranging the first synchronous clamping mechanism and the second synchronous clamping mechanism, and the movement of the second synchronous clamping mechanism is controlled by the control device to adapt to the compression of transmission shafts of different lengths.

[0034] The second synchronous clamping mechanism is used to measure the position of the transmission shaft before being compressed, and to feed back the measured position data to the control device. The second synchronous clamping mechanism is provided with a driving device for compressing the transmission shaft. The driving device is controlled by the control device to achieve compression of the transmission shaft. A pressure measuring device is also provided for detecting the pressure value applied by the driving device to the transmission shaft. The operation of the pressure measuring device is controlled by the control device. During the process of the driving device compressing the transmission shaft, the pressure value exerted on the transmission shaft is measured by the pressure measuring device, and the measured pressure value is fed back to the control device. The control device is used to receive data and make judgments and displays it. The control device judges whether the measured pressure value is within a preset pressure value range. If it is within the preset pressure value range, the driving device is controlled to continue compressing the transmission shaft. If it is not within the preset pressure value range, it will be displayed and an alarm will be given.

[0035] At least two synchronization mechanisms are provided, and at least two synchronization mechanisms are provided on the linear rail. The synchronization mechanism is used to support the transmission shaft. The synchronization mechanism is controlled by the control device to support the transmission shaft so that the transmission shaft will not be deflected during the compression process. Two brackets are provided at both ends of the compressed position of the transmission shaft. Two measuring mechanisms are provided, and the two measuring mechanisms are movably provided on the linear rail. The measuring mechanisms are controlled by the control device to move along the linear rail to the position of the corresponding bracket on the compressed transmission shaft, and the position of the bracket is measured, and the position data is fed back to the control device. The control device determines whether the size of the compressed transmission shaft is qualified.

[0036] The transmission shaft compression length inspection bench set up in the above manner can collect the pressure data and compressed position data of the transmission shaft while compressing the transmission shaft. With the cooperation of the control device, accurate compression of the transmission shaft can be achieved, thereby improving the detection efficiency of the transmission shaft compression process, making the detection results more accurate, and reducing the loss of the transmission shaft after compression. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0038] Figure 1 This is a schematic diagram of the structure of the transmission shaft compression length test bench provided by the utility model;

[0039] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0040] Figure 3It is a structural schematic diagram of the second synchronous clamping mechanism provided by the utility model;

[0041] Figure 4 A schematic diagram of the structure of the measuring mechanism provided by the utility model;

[0042] Figure 5 A structural schematic diagram of the synchronization mechanism provided by the utility model;

[0043] Figure 6 This is a schematic structural diagram of the second handle provided by the utility model.

[0044] Reference numerals:

[0045] 01- transmission shaft;

[0046] 1- rack;

[0047] 2-Linear rail;

[0048] 3- first synchronous clamping mechanism;

[0049] 4- Bracket;

[0050] 5-second synchronous clamping mechanism, 51-movable base plate, 52-locking device, 53-hand-cranked clamping device;

[0051] 6- driving device;

[0052] 7-pressure measuring device, 71-pressure sensor, 72-proportional valve;

[0053] 8-synchronizing mechanism, 81-mounting frame, 82-support, 83-second motor, 84-rubber roller;

[0054] 9-measuring mechanism, 91-mounting seat, 92-first motor, 93-guide rail, 94-measuring ruler, 95-first handle;

[0055] 10- rack;

[0056] 11-Tank chain;

[0057] 12 - second handle, 121 - first button, 122 - second button, 123 - third button. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] It should be noted that the directional words such as "up, down, left, right" etc. mentioned below are defined based on the drawings in the specification.

[0061] The core of the utility model is to provide a transmission shaft compression length inspection bench, which can improve the inspection efficiency during the compression process of the transmission shaft 01, make the inspection result more accurate, and reduce the loss of the transmission shaft 01 after compression.

[0062] Please refer to Figure 1 , Figure 2 and Figure 3 A transmission shaft compression length inspection platform includes a frame 1, a linear rail 2, a first synchronous clamping mechanism 3, a bracket 4, a second synchronous clamping mechanism 5, a driving device 6, a pressure measuring device 7, a synchronization mechanism 8, a measuring mechanism 9 and a control device.

[0063] Specifically, the second synchronous clamping mechanism 5, the driving device 6, the pressure measuring device 7, the synchronous mechanism 8 and the measuring mechanism 9 are all connected to the control device, and the operating states of the second synchronous clamping mechanism 5, the driving device 6, the pressure measuring device 7, the synchronous mechanism 8 and the measuring mechanism 9 are controlled by the control device. A linear rail 2 is arranged along its extension direction in the frame 1, the first synchronous clamping mechanism 3 is arranged at one end of the linear rail 2 and is used to clamp one end of the transmission shaft 01, and the second synchronous clamping mechanism 5 is movably arranged at the other end of the linear rail 2 and is used to clamp the other end of the transmission shaft 01. The transmission shaft 01 is clamped by setting the first synchronous clamping mechanism 3 and the second synchronous clamping mechanism 5, and the movement of the second synchronous clamping mechanism 5 is controlled by the control device to adapt to the compression of transmission shafts 01 of different lengths.

[0064] The second synchronous clamping mechanism 5 is used to measure the position of the transmission shaft 01 before being compressed, and to feed back the measured position data to the control device. The second synchronous clamping mechanism 5 is provided with a driving device 6 for compressing the transmission shaft 01. The driving device 6 is controlled to operate by the control device to achieve compression of the transmission shaft 01. A pressure measuring device 7 is also provided for detecting the pressure value applied by the driving device 6 to the transmission shaft 01. The pressure measuring device 7 is controlled to operate by the control device. During the process of the driving device 6 compressing the transmission shaft 01, the pressure value exerted on the transmission shaft 01 is measured by the pressure measuring device 7 at the same time, and the measured pressure value is fed back to the control device. The control device is used to receive data and make judgments and displays. The control device judges whether the measured pressure value is within a preset pressure value range. If it is within the preset pressure value range, the driving device 6 is controlled to continue to compress the transmission shaft 01. If it is not within the preset pressure value range, it will be displayed and an alarm will be given.

[0065] At least two synchronization mechanisms 8 are provided, and at least two synchronization mechanisms 8 are both provided on the linear rail 2. The synchronization mechanism 8 is used to support the transmission shaft 01. The synchronization mechanism 8 is controlled by the control device to support the transmission shaft 01, so that the transmission shaft 01 will not be deflected during the compression process. Two brackets 4 are provided at both ends of the compressed position of the transmission shaft 01. Two measuring mechanisms 9 are provided, and the two measuring mechanisms 9 are movably provided on the linear rail 2. The measuring mechanisms 9 are controlled by the control device to move along the linear rail 2 to the position of the corresponding bracket 4 on the compressed transmission shaft 01, and the position of the bracket 4 is measured, and the position data is fed back to the control device, and the control device is used to judge whether the size of the compressed transmission shaft 01 is qualified.

[0066] There is a structure to be compressed in the middle of the transmission shaft 01, and brackets 4 are provided at both ends of the structure to be compressed. The measuring mechanism 9 measures the position of the structure to be compressed after being compressed.

[0067] When it is necessary to use the above-mentioned inspection bench to measure the compression length of the transmission shaft 01, first manually open the first synchronous clamping mechanism 3 to clamp one end of the transmission shaft 01. At the same time, the synchronous mechanism 8 supports the transmission shaft 01. Then, the control device controls the second synchronous clamping mechanism 5 to move along the linear rail 2 to a position that is almost in contact with the other end of the transmission shaft 01. Then, the second synchronous clamping mechanism 5 is manually opened to clamp the other end of the transmission shaft 01. Then, the control device controls the driving device 6 to operate to compress the transmission shaft 01. At the same time, the pressure value of the transmission shaft 01 is measured by the pressure measuring device 7, and the measured result is fed back to the control device. The control device determines whether the actually measured pressure value is within the preset pressure value range, and further determines whether it is necessary to adjust the force applied to the transmission shaft 01 by the driving device 6. When the transmission shaft 01 is compressed, the measuring mechanism 9 is controlled to measure the position of the bracket 4 on the compressed transmission shaft 01, and the measured result is fed back to the control device. The control device determines whether the compressed transmission shaft 01 is qualified.

[0068] The transmission shaft compression length inspection bench set up in the above manner can collect the pressure data and compressed position data of the transmission shaft 01 while compressing the transmission shaft 01. With the cooperation of the control device, accurate compression of the transmission shaft 01 can be achieved, thereby improving the detection efficiency of the compression process of the transmission shaft 01, making the detection result more accurate, and reducing the loss of the transmission shaft 01 after compression.

[0069] Please refer to Figure 4 The measuring mechanism 9 includes a slider sliding along the linear rail 2, a first motor 92 arranged on the slider through a mounting seat 91, a gear is arranged at the output end of the first motor 92, the gear is meshed with a rack 10 on the frame 1, the rack 10 is arranged along the extension direction of the frame 1, an encoder for calculating the number of rotations of the gear is arranged in the first motor 92, the first motor 92 is connected to the control device, and is used to connect the guide rail 93 of the two corresponding mounting seats 91 on the linear rail 2, the guide rail 93 is arranged perpendicular to the linear rail 2, a measuring ruler 94 is arranged to move along the guide rail 93 and is used to measure the position of the bracket 4, a first handle 95 connected to the measuring ruler 94 and used to record the position of the bracket 4, and the first handle 95 is connected to the control device.

[0070] It should be noted that when it is necessary to measure the compressed transmission shaft 01, the first motor 92 is controlled by the control device to operate, the measuring mechanism 9 is moved to a position corresponding to the bracket 4, the measuring ruler 94 is moved to the center position of the hole on the bracket 4 and then stopped, the button on the first handle 95 is pressed, and the first motor 92 feeds back the number of rotations of the gear to the encoder. The encoder calculates the compressed length of the transmission shaft 01 based on the rotation circumference and the number of rotations of the gear, and feeds back the measured position information of the bracket 4 to the control device.

[0071] The rack 10 is arranged throughout the entire frame 1, and the rack 10 is fixed on the frame 1. The gear is rotating, and the moving distance is calculated by the number of circles the gear rotates and the circumference of one rotation.

[0072] Please refer to Figure 3 The second synchronous clamping mechanism 5 includes a movable base plate 51 and a hand-cranked clamping device 53. The movable base plate 51 is movably arranged along the linear rail 2 and has a slider that cooperates with the linear rail 2 at the bottom. The bottom of the movable base plate 51 is also provided with a locking device 52 that is locked with the linear rail 2. The locking device 52 is connected to the control device. The movable base plate 51 is provided with a first motor 92 that is connected to the control device. The output end of the first motor 92 is provided with a gear that meshes with the rack 10 for transmission. The first motor 92 is provided with an encoder. The hand-cranked clamping device 53 is movably arranged on the movable base plate 51. The hand-cranked clamping device 53 includes a clamping jaw for clamping and fixing the transmission shaft 01, and also includes a hand-cranked screw assembly for driving the clamping jaw to open and close. The hand-cranked screw assembly is connected to the pressure measuring device 7. The hand-cranked clamping device 53 can move along the direction in which the frame 1 extends.

[0073] It can be understood that when one end of the transmission shaft 01 is fixed, the locking device 52 is first controlled to open through the control device, so that the movable base plate 51 can move along the linear rail 2. When the movable base plate 51 moves to the position where the clamp is about to abut against the other end of the transmission shaft 01, the hand-cranked clamping device 53 is manually opened, and the clamp is opened by using the hand-cranked screw assembly to clamp the other end of the transmission shaft 01. Then, the drive device 6 is controlled to apply pressure to the transmission shaft 01 to compress the transmission shaft 01. At the same time, the pressure on the transmission shaft 01 is measured by the pressure measuring device 7, and the measured result is fed back to the control device. The control device determines whether the measured actual pressure is consistent with the preset pressure range. If not, the pressure output by the drive device 6 is further controlled.

[0074] The first synchronous clamping mechanism 3 is similar in structure to the second synchronous clamping mechanism 5. The first synchronous clamping mechanism 3 also includes a hand-cranked screw assembly and a clamping claw. The hand-cranked screw assembly is manually driven to open the clamping claw to clamp the transmission shaft 01. The first synchronous clamping mechanism 3 is fixed to the frame 1 and will not move along the linear rail 2.

[0075] Furthermore, the locking device 52 includes air clamps arranged on both sides of the bottom of the movable base plate 51. The air clamps are arranged in coordination with the linear rail 2 and are connected to the control device. The air clamps are locked with the linear rail 2 in an initial state.

[0076] It should be noted that when it is necessary to move the second synchronous clamping mechanism 5, the air pliers are controlled to open by the control device so that the second synchronous clamping mechanism 5 can be dragged. When the second synchronous clamping mechanism 5 is moved to a determined position, it self-locks to fix the position of the second synchronous clamping mechanism 5 and the linear rail 2, avoiding the second synchronous clamping mechanism 5 from moving when the driving device 6 is running, so as to ensure that the driving device 6 can smoothly apply pressure to the transmission shaft 01.

[0077] In the above embodiment, the driving device 6 includes a rodless cylinder connected to the control device, and the rodless cylinder drives the hand-cranked clamping device 53 to move along the movable base plate 51.

[0078] It can be understood that after the two clamping jaws clamp the two ends of the transmission shaft 01, the control device controls the operation of the rodless cylinder to drive the hand-cranked clamping device 53 on the second synchronous clamping mechanism 5 to move along the direction of compressing the transmission shaft 01 to achieve compression of the transmission shaft 01.

[0079] Based on the above embodiment, the pressure measuring device 7 includes a pressure sensor 71 and a proportional valve 72 connected to the control device. The pressure sensor 71 is arranged on the hand-cranked screw assembly through a mounting plate, and the proportional valve 72 is arranged on the movable base plate 51. The proportional valve 72 is connected to the rodless cylinder.

[0080] It should be noted that when the control device controls the rodless cylinder to move to the left, when the transmission shaft 01 hits the contact surface of the clamp, the pressure sensor 71 can detect the clamping force of the rodless cylinder and feed back the measured pressure value to the control device. The control device determines whether the actually measured pressure value matches the preset pressure value range. If the actually measured pressure value is not within the preset pressure value range, the output air pressure of the rodless cylinder is further adjusted through the proportional valve 72. If the actually measured pressure value is within the preset pressure value range, the output pressure of the rodless cylinder continues to be controlled.

[0081] Please refer to Figure 5 The synchronization mechanism 8 includes a mounting frame 81, a support 82 and a rubber roller 84. The mounting frame 81 is arranged on the linear rail 2. The mounting frame 81 is arranged vertically to the linear rail 2. The mounting frame 81 is provided with a slideway parallel to the guide rail 93. There are two supports 82. Both supports 82 are arranged to move along the slideway. The supports 82 are synchronously moved in opposite directions or synchronously moved in opposite directions by the second motor 83. The second motor 83 is arranged in the mounting frame 81 and connected to the control device. The rubber roller 84 is arranged on the support 82 and is used to support the transmission shaft 01.

[0082] It can be understood that the second motor 83 is controlled by the control device to operate so that the two supports 82 move synchronously along the slide rail on the mounting frame 81, thereby driving the rubber roller 84 on the support 82 to move synchronously. In this embodiment, the two supports 4 move synchronously in opposite directions to clamp the rubber roller 84, or move synchronously in divergent directions to open the rubber roller 84, so as to ensure that the synchronization mechanism 8 is on the axis when supporting the transmission shaft 01.

[0083] Among them, in this embodiment, three synchronization mechanisms 8 are provided. In practical applications, there is no limitation on the specific structure, quantity, setting position, etc. of the synchronization mechanism 8, as long as the above-mentioned technical effects can be achieved.

[0084] As a preferred embodiment, the frame 1 is further provided with a tank chain 11 arranged along the extending direction of the frame 1 .

[0085] It should be noted that the tank chain 11 is used to place wiring, air pipes and cables.

[0086] In the above case, the control device includes a controller, a second handle 12 connected to the controller, and a display screen, and the second handle 12 is arranged on the movable base plate 51 .

[0087] It is understandable that, in actual application, the control logic is set by the controller to control the operating status and operating steps of each component, each step is controlled by the buttons on the second handle 12, and the measured data information is displayed on the display screen.

[0088] Please refer to Figure 6 The second handle 12 is provided with a first button 121 for controlling the opening of the air pliers, a second button 122 for controlling the operation of the rodless cylinder, and a third button 123 for saving the data measured by the measuring ruler 94.

[0089] It should be noted that, by pressing the first button 121, the second synchronous clamping mechanism 5 on the right is moved to a length similar to that of the transmission shaft 01, and the transmission shaft 01 to be compressed is in the middle, and then the second button 122 is pressed, and the rodless cylinder is pushed to the left, and the pressure sensor 71 is subjected to force at this time, and the specific parameters are displayed on the display screen. The pressure parameters required for measuring the transmission shaft 01 pre-entered on the display screen, the controller will automatically calculate and adjust the pressure through the proportional valve 72 to control the output force of the rodless cylinder. After the transmission shaft 01 is compressed, the measuring structure needs to be used, and the measuring ruler 94 can be moved forward, backward, left and right. When the measuring ruler 94 moves to the hole center of the bracket 4, the button on the first handle 95 is pressed to record the position of the bracket 4 at that time, which will also be displayed on the display screen after recording, and finally the third button 123 is pressed, and all the data will be saved and recorded. According to the data displayed on the display screen, the length is compared with the preset length, and the pressure is compared with the preset pressure. If it meets the requirements, it is a qualified product. If the size is different or the pressure value is incorrect, an alarm will be issued and the product is unqualified.

[0090] In summary, the transmission shaft compression length inspection bench provided by the utility model is designed with three first motors 92 respectively on the measuring mechanism 9 and the second synchronous clamping mechanism 5. The position of each point can be read by the rotation circumference of the gear and rack 10 of the first motor 92. When the transmission shaft 01 is placed on the equipment, the first synchronous clamping mechanism 3 is used to open the transmission shaft 01 by hand-cranking to clamp it. The three synchronous mechanisms 8 all play a role in supporting the transmission shaft 01. The second motor 83 can be used to realize the synchronous opening and clamping of the rubber roller 84, which can ensure that the synchronous mechanism 8 is on the axis when supporting. Press the first button 121 on the second handle 12 to allow the two air pliers to ventilate and loosen the linear rail 2, so that the second synchronous clamping mechanism 5 can move left and right. When the air is cut off, the air pliers will lock on the linear rail 2. The second synchronous clamping mechanism 5 is used to open the transmission shaft 01 by hand-cranking to clamp it. When the hand-cranked clamping device 53 is moved to the left by the rodless cylinder, when the transmission shaft 01 hits the contact surface, the pressure sensor 71 detects the clamping force of the rodless cylinder and feeds back the actual measured result to the controller. The actual measured pressure value is judged by the pressure value judgment logic pre-entered in the controller and adjusted. Finally, the compressed length of the transmission shaft 01 is measured by the measuring mechanism 9. The transmission shaft compression length inspection bench set up in this application can detect the size of the compressed transmission shaft 01. The inspection is accurate and efficient, and the data storage is traceable. The measured data is automatically compared with the size and pressure imported into the controller, and an automatic alarm can be triggered if it is out of tolerance.

[0091] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0092] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0093] The above is a detailed introduction to a transmission shaft compression length test bench provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A transmission shaft compression length test bench, characterized in that: include: A frame (1), wherein a linear rail (2) is provided in the frame (1), and the linear rail (2) is arranged along the extension direction of the frame (1); A first synchronous clamping mechanism (3) is arranged at one end of the linear rail (2), the first synchronous clamping mechanism (3) is used to clamp one end of the transmission shaft (01), and two brackets (4) are arranged at both ends of the compressed position of the transmission shaft (01); a second synchronous clamping mechanism (5) movably disposed at the other end of the linear rail (2), the second synchronous clamping mechanism (5) being used to clamp the other end of the transmission shaft (01) and measure the position of the transmission shaft (01) before being compressed, the second synchronous clamping mechanism (5) being provided with a driving device (6) for compressing the transmission shaft (01), and also being provided with a pressure measuring device (7) for detecting the pressure value applied by the driving device (6) to the transmission shaft (01); Synchronous mechanisms (8), at least two of which are provided, and at least two of the synchronous mechanisms (8) are provided on the linear rail (2), and the synchronous mechanisms (8) are used to support the transmission shaft (01); Two measuring mechanisms (9) are provided, and the two measuring mechanisms (9) are movably arranged on the linear track (2), and the measuring mechanisms (9) are used to measure the position of the bracket (4); The second synchronous clamping mechanism (5), the driving device (6), the pressure measuring device (7), the synchronous mechanism (8) and the measuring mechanism (9) are all connected to a control device, and the control device is used to receive data and make judgments and displays them.

2. The transmission shaft compression length test bench according to claim 1, characterized in that: The measuring mechanism (9) comprises: A slider sliding along the linear rail (2); A first motor (92) is arranged on the slider via a mounting seat (91), a gear is arranged at the output end of the first motor (92), the gear is meshed with a rack (10) on the frame (1), the rack (10) is arranged along the extension direction of the frame (1), an encoder for calculating the number of rotations of the gear is arranged in the first motor (92), and the first motor (92) is connected to the control device; A guide rail (93) for connecting the two corresponding mounting seats (91) on the linear rail (2), wherein the guide rail (93) is arranged perpendicular to the linear rail (2); a measuring ruler (94) movably arranged along the guide rail (93) and used for measuring the position of the bracket (4); A first handle (95) connected to the measuring ruler (94) and used to record the position of the bracket (4), wherein the first handle (95) is connected to the control device.

3. The transmission shaft compression length test bench according to claim 2, characterized in that: The second synchronous clamping mechanism (5) comprises: A movable base plate (51) is arranged to move along the linear rail (2), the bottom of the movable base plate (51) is provided with the slider matched with the linear rail (2), the bottom of the movable base plate (51) is also provided with a locking device (52) locked with the linear rail (2), the locking device (52) is connected to the control device, the movable base plate (51) is provided with the first motor (92) connected to the control device, the output end of the first motor (92) is provided with the gear meshing with the rack (10), and the encoder is provided inside the first motor (92); A hand-cranked clamping device (53) is movably arranged on the movable base plate (51), and the hand-cranked clamping device (53) includes a clamping jaw for clamping and fixing the transmission shaft (01), and also includes a hand-cranked screw assembly for driving the clamping jaw to open and close, and the hand-cranked screw assembly is connected to the pressure measuring device (7). The hand-cranked clamping device (53) can move along the direction in which the frame (1) extends.

4. The transmission shaft compression length test bench according to claim 3, characterized in that: The locking device (52) comprises pneumatic clamps arranged on both sides of the bottom of the movable base plate (51), the pneumatic clamps being arranged in cooperation with the linear rail (2), the pneumatic clamps being connected to the control device, and the pneumatic clamps being locked with the linear rail (2) in an initial state.

5. The transmission shaft compression length test bench according to claim 4, characterized in that: The driving device (6) comprises a rodless cylinder connected to the control device, and the rodless cylinder drives the hand-cranked clamping device (53) to move along the movable base plate (51).

6. The transmission shaft compression length test bench according to claim 5, characterized in that: The pressure measuring device (7) comprises a pressure sensor (71) and a proportional valve (72) connected to the control device; the pressure sensor (71) is arranged on the hand-cranked screw assembly via a mounting plate; the proportional valve (72) is arranged on the movable base plate (51); and the proportional valve (72) is connected to the rodless cylinder.

7. The transmission shaft compression length test bench according to claim 6, characterized in that: The synchronization mechanism (8) comprises: A mounting frame (81) is arranged on the linear rail (2), the mounting frame (81) is arranged perpendicular to the linear rail (2), and a slideway parallel to the guide rail (93) is provided on the mounting frame (81); There are two supports (82), both of which are arranged to move along the slideway, and the supports (82) are synchronously moved in opposite directions or synchronously moved in opposite directions by a second motor (83), and the second motor (83) is arranged in the mounting frame (81) and connected to the control device; A rubber roller (84) is arranged on the support (82), and the rubber roller (84) is used to support the transmission shaft (01).

8. The transmission shaft compression length test bench according to claim 7, characterized in that: The frame (1) is also provided with a tank chain (11), and the tank chain (11) is arranged along the direction in which the frame (1) extends.

9. The transmission shaft compression length test bench according to claim 8, characterized in that: The control device comprises a controller, a second handle (12) connected to the controller, and a display screen, wherein the second handle (12) is arranged on the movable bottom plate (51).

10. The transmission shaft compression length test bench according to claim 9, characterized in that: The second handle (12) is provided with a first button (121) for controlling the opening of the air pliers, a second button (122) for controlling the operation of the rodless cylinder, and a third button (123) for saving data measured by the measuring ruler (94).

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