A fixture for processing agricultural machinery parts

Abstract

The present invention relates to the field of agricultural machinery accessories, and discloses a clamp for processing agricultural machinery accessories, including a processing table, on which a first clamp and a second clamp are arranged for clamping a circular accessory, the first clamp and the second clamp being symmetrically arranged on the top of the processing table; a driving member, the driving member being used to drive the first clamp and the second clamp to move closer to or away from each other; and a discharge trough, the discharge trough being connected to the outside of the processing table, and the debris formed on the circular accessory can be discharged from the discharge trough. The present invention clamps the circular accessory by the first clamp and the second clamp, and arranges the central axis of the circular accessory along the plumb line direction, so as to facilitate the processing of the structure on the circular accessory, and the debris generated by the processing can be discharged from the processing table from the discharge trough.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery parts processing, in particular to a clamp for processing agricultural machinery parts. Background Art

[0002] The transmission structure in agricultural machinery accessories has pins and keys. A pin is a cylindrical or conical part used for positioning and connection, and its length is usually smaller than its diameter. In agricultural machinery accessories, there are many types of pins, including cylindrical pins, conical pins, cotter pins, etc. A key is a part used for circumferential fixation between the shaft and the parts on the shaft, and its shape is usually rectangular, trapezoidal or circular, etc. In agricultural machinery accessories, the main function of the key is to transmit torque and realize the fixation or movement of the parts on the shaft. The main function of the key is to ensure reliable connection and transmission between the shaft and the parts on the shaft. In agricultural machinery, key connections are generally used to transmit larger torques and bear larger loads. Therefore, the material and manufacturing precision of the key are required to be high to ensure the stability and durability of the connection. In general, pins and keys are indispensable standard parts in agricultural machinery accessories, and they play an important role in mechanical transmission and assembly;

[0003] Pins and keys need to be clamped during processing so that their central axes are aligned with the processing equipment. In addition, round parts are more difficult to clamp than parts of ordinary shapes. Round parts are prone to deviation when clamped, resulting in reduced processing accuracy. In addition, debris generated by part processing is prone to accumulate around the parts, making it difficult to see the progress of part processing during operation. Summary of the invention

[0004] The present invention provides the following technical solutions:

[0005] A fixture for processing agricultural machinery accessories comprises a processing table, on which are arranged:

[0006] A first clamping member and a second clamping member, used to clamp the circular accessory, wherein the first clamping member and the second clamping member are symmetrically arranged on the top of the processing table;

[0007] A driving member, the driving member is used to drive the first clamping member and the second clamping member to move closer to each other or away from each other;

[0008] A discharge trough, the discharge trough being in communication with the outside of the processing table, and the debris formed on the circular accessory can be discharged from the discharge trough;

[0009] A blower, wherein an air outlet end of the blower faces between the first clamping member and the second clamping member and is aligned with the circular accessory;

[0010] A visual sensor, wherein the visual sensor is installed in the processing table and can cover the splash range of the machining debris of the circular accessory;

[0011] Industrial computer, the visual sensor, the industrial computer and the blower are connected via wire signals;

[0012] The circular accessory is clamped by the first clamping member and the second clamping member, and the central axis of the circular accessory is arranged along the plumb line direction, so that the structure on the circular accessory can be processed easily, and the debris generated by the processing can be discharged from the processing table through the discharge trough;

[0013] In addition, the visual sensor can be used to perform visual analysis on the discharge chute and circular accessories to determine whether the debris has caused the discharge chute to be blocked or the debris has accumulated around the circular accessories. When blockage occurs, the visual sensor sends a signal to the industrial computer, which, after analysis and judgment, sends a signal to the blower to activate the blower to blow away the accumulated debris.

[0014] Preferably, a movable part is installed on the top of the first clamping part and the second clamping part, and the side walls of the first clamping part and the second clamping part are provided with installation grooves, and the movable part is fixedly installed in the installation grooves, and an adjusting block is installed on the top of the movable part, and the adjusting block is slidably connected to one side of the movable part, and a convex plate is connected to the end of the movable part, and the two ends of the adjusting block are connected to the convex plate through a telescopic part.

[0015] Preferably, a laser displacement sensor is fixedly installed on the top of the processing table, the laser emission line of the laser displacement sensor is aimed at the circular accessory, the laser emission line of the laser displacement sensor is parallel to the telescopic line of the telescopic member, the telescopic members at both ends of the adjustment block above the first clamping member and the second clamping member are respectively the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the fourth electric telescopic rod, and the laser displacement sensor, the industrial computer and the telescopic member are connected by wire signals;

[0016] When the circular accessory is in the process of processing, the circular accessory is clamped by two adjusting blocks. Since the end of the circular accessory is in line contact with the adjusting block, rolling or sliding may occur. The displacement of the circular accessory can be detected by the laser displacement sensor. When an abnormality occurs, the laser displacement sensor can transmit the signal to the industrial computer. The industrial computer can control the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the fourth electric telescopic rod respectively, and control the two adjusting blocks separately to make the circular accessory roll between the two adjusting blocks, correct its position, and keep the circular accessory in the center of the processing equipment at all times, thereby improving the processing accuracy.

[0017] Preferably, the ends of the first clamping member and the second clamping member are fixedly connected with sliding columns, the outer wall of the processing table is connected with a fixed sleeve, the sliding column is sealingly and slidingly connected to the fixed sleeve, the outside of the fixed sleeve is connected to a pressure pump, and the pressure pump is used to pressurize the inside of the fixed sleeve, so that the sliding column drives the first clamping member or the second clamping member to move closer to or away from each other, thereby clamping or loosening the circular accessory.

[0018] Preferably, a sliding groove is provided on the top of the processing table, the first clamping member and the second clamping member are slidably connected to the sliding groove, the discharge groove is provided at the bottom of the inner wall of the sliding groove, a discharge channel is provided at the bottom of the discharge groove, and the discharge channel extends to the outside of the processing table.

[0019] Preferably, a pad is provided above the processing table, the pad is installed between the first clamping member and the second clamping member, and the pad is used to support the circular accessory.

[0020] Preferably, a threaded column is connected to the top of the processing table, through holes are opened at the four corners of the backing plate, the through holes pass through the threaded column, the bottom of the backing plate is elastically connected to the top of the processing table through a spring, a threaded sleeve is installed on the top of the threaded column, and the threaded sleeve is threadedly connected to the threaded column;

[0021] By setting a pad, the circular accessory can be supported to prevent it from sliding downward. The pad is always located on the upper part of the threaded column under the squeezing action of the spring. By rotating the threaded sleeve to move the threaded sleeve downward, the pad can be driven to move downward.

[0022] Preferably, a hollow is provided in the middle of the pad, and the hollow is used to allow debris generated by the processing of the circular accessories to be discharged into a discharge trough below the pad.

[0023] Preferably, both sides of the discharge trough are inclined and the discharge trough is V-shaped.

[0024] Compared with the prior art, the present invention provides a clamp for processing agricultural machinery accessories, which has the following beneficial effects:

[0025] 1. The present invention clamps the circular accessory by the first clamping member and the second clamping member, and arranges the central axis of the circular accessory along the plumb line direction, thereby facilitating the processing of the structure on the circular accessory, and the debris generated by the processing can be discharged from the processing table through the discharge trough.

[0026] 2. The present invention can perform visual analysis on the discharge chute and the circular accessory through the visual sensor to determine whether the debris causes the discharge chute to be blocked or the debris accumulates around the circular accessory. When blockage occurs, the visual sensor sends a signal to the industrial computer, which sends the signal to the blower after analysis and judgment, so that the blower works to blow away the accumulated debris.

[0027] 3. The present invention can detect the displacement of the circular accessory through the laser displacement sensor. When an abnormality occurs, the laser displacement sensor can transmit a signal to the industrial computer, and the industrial computer can control the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the fourth electric telescopic rod respectively, and control the two adjustment blocks separately to allow the circular accessory to roll between the two adjustment blocks, correct its position, and keep the circular accessory at the center of the processing equipment at all times, thereby improving the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall stereogram of the present invention;

[0029] Figure 2 It is a half-section diagram of the present invention;

[0030] Figure 3 An exploded view of the first clamping member and the second clamping member of the present invention;

[0031] Figure 4 It is a three-dimensional exploded structural diagram of the movable part and the second clamping part of the present invention;

[0032] Figure 5 It is an overall exploded view of the present invention;

[0033] Figure 6 A three-dimensional diagram of the adjusting block and the movable part of the present invention;

[0034] Figure 7 An exploded view of the adjusting block and the movable parts of the present invention;

[0035] Figure 8 This is a system block diagram of the present invention.

[0036] In the figure: 100, processing table; 101, first clamping member; 102, second clamping member; 103, sliding column; 104, fixing sleeve; 105, sliding groove; 106, discharge groove; 107, discharge channel; 109, blower; 110, visual sensor; 111, pad; 112, through hole; 113, threaded column; 114, threaded sleeve; 115, mounting groove; 116, movable part; 117, adjusting block; 118, telescopic part; 119, convex plate; 120, laser displacement sensor; 200, circular accessory. DETAILED DESCRIPTION

[0037] See also Figure 1-8 This embodiment discloses a fixture for processing agricultural machinery accessories, including a processing table 100, on which are disposed:

[0038] A first clamping member 101 and a second clamping member 102 are used to clamp the circular accessory 200, and the first clamping member 101 and the second clamping member 102 are symmetrically arranged on the top of the processing table 100;

[0039] A driving member, the driving member is used to drive the first clamping member 101 and the second clamping member 102 to move closer to each other or away from each other;

[0040] A discharge trough 106 , the discharge trough 106 is in communication with the outside of the processing table 100 , and the debris formed by the circular accessory 200 can be discharged from the discharge trough 106 ;

[0041] A blower 109, wherein an air outlet end of the blower 109 faces between the first clamping member 101 and the second clamping member 102 and is aligned with the circular accessory 200;

[0042] A visual sensor 110, wherein the visual sensor 110 is installed in the processing table 100, and the visual sensor 110 can cover the splash range of the processing debris of the circular accessory 200;

[0043] Industrial computer, the visual sensor 110, the industrial computer and the blower 109 are connected by wire signals;

[0044] The circular accessory 200 is clamped by the first clamping member 101 and the second clamping member 102, and the central axis of the circular accessory 200 is arranged along the plumb line direction, so that the structure on the circular accessory 200 is easily processed, and the debris generated by the processing can be discharged from the processing table 100 through the discharge groove 106;

[0045] The visual sensor 110 can also be used to visually analyze the discharge trough 106 and the circular accessory 200 to determine whether the debris has caused the discharge trough 106 to be blocked or the debris has accumulated around the circular accessory 200. When a blockage occurs, the visual sensor 110 sends a signal to the industrial computer, which sends the signal to the blower 109 after analysis and judgment, so that the blower 109 works to blow away the accumulated debris.

[0046] The following is a specific implementation method of the industrial computer analyzing the image information of the visual sensor 110:

[0047] Image preprocessing:

[0048] Denoising: Use filtering algorithms (such as Gaussian filtering, median filtering, etc.) to remove noise from the image and improve image quality;

[0049] Contrast enhancement: Enhance the contrast of the image through histogram equalization, contrast stretching and other methods to make the features in the image more distinct;

[0050] Image segmentation: Divide the image into different regions or objects based on its grayscale, color or texture characteristics to facilitate subsequent feature extraction and analysis.

[0051] Feature extraction:

[0052] Edge detection: Use edge detection algorithms such as Canny, Prewitt, and Roberts to extract edge information from images;

[0053] Corner detection: Use Harris corner detection, SIFT, SURF and other algorithms to detect corners or feature points in the image;

[0054] Texture analysis: Analyze the texture features of the image through methods such as gray-level co-occurrence matrix and Fourier transform.

[0055] Image analysis:

[0056] Object detection: Detecting specific targets or objects in an image using machine learning algorithms (such as support vector machines, deep learning models, etc.). This can be done by training the model to recognize the features of the target and automatically detecting these features in new images;

[0057] Classification and recognition: Use classification algorithms (such as decision trees, random forests, neural networks, etc.) to classify and identify objects in images. This usually requires training the model based on training data so that it can distinguish different categories.

[0058] Scene understanding: Understanding and parsing scenes in images by combining multiple features and contextual information, which can involve reasoning and interpreting objects, spatial relationships, activities, etc. in the image.

[0059] Result output and optimization:

[0060] Result visualization: Output the processing and analysis results in a visual form, such as marking the target location, displaying the classification results, etc., to facilitate user understanding and use;

[0061] Performance optimization: Optimize the algorithm according to actual needs to improve processing speed and accuracy. This can include optimizing algorithm parameters, using parallel computing or hardware acceleration, etc.

[0062] Feedback and iteration: Based on user feedback and actual application results, the solution is iterated and improved to continuously improve the performance and accuracy of image processing and analysis.

[0063] Send instructions;

[0064] When the collected image information is compared with the image information of the discharge chute 106 in a normal flow state and a blockage state is determined, a command is sent to the blower 109 to start it and clean the blocked debris in the discharge chute 106.

[0065] See also Figure 3 , Figure 4 A movable part 116 is installed on the top of the first clamping part 101 and the second clamping part 102, and a mounting groove 115 is opened on the side wall of the first clamping part 101 and the second clamping part 102. The movable part 116 is fixedly installed with the mounting groove 115, and an adjusting block 117 is installed on the top of the movable part 116. The adjusting block 117 is slidably connected to one side of the movable part 116, and a convex plate 119 is connected to the end of the movable part 116. The two ends of the adjusting block 117 are connected to the convex plate 119 through a telescopic part 118.

[0066] See also Figure 5 A laser displacement sensor 120 is fixedly installed on the top of the processing table 100, and the laser emission line of the laser displacement sensor 120 is aimed at the circular accessory 200. The laser emission line of the laser displacement sensor 120 is parallel to the telescopic line of the telescopic member 118. The telescopic members 118 at both ends of the adjustment block 117 above the first clamping member 101 and the second clamping member 102 are respectively the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the fourth electric telescopic rod. The laser displacement sensor 120, the industrial computer and the telescopic member 118 are connected by wire signals;

[0067] When the circular accessory 200 is being processed, the circular accessory 200 is clamped by the two adjustment blocks 117. Since the end of the circular accessory 200 is in line contact with the adjustment block 117, rolling or sliding may occur. The displacement of the circular accessory 200 can be detected by the laser displacement sensor 120. When an abnormality occurs, the laser displacement sensor 120 can transmit a signal to the industrial computer, and the industrial computer can control the first electric telescopic rod, the second electric telescopic rod, the third electric telescopic rod and the fourth electric telescopic rod respectively, and control the two adjustment blocks 117 separately, so that the circular accessory 200 rolls between the two adjustment blocks 117, and its position is corrected, so that the circular accessory 200 always remains in the center of the processing equipment, thereby improving the processing accuracy;

[0068] The above-mentioned method of automatically correcting the circular accessory 200 by driving the adjustment block 117 through the telescopic member 118 is:

[0069] The laser displacement sensor 120 detects the position information of the circular accessory 200 and converts it into an electrical signal and sends it to the industrial computer, which is equipped with a PLC controller;

[0070] Software preparation:

[0071] Signal acquisition and processing: Write a program to enable the controller to collect the signal of the displacement sensor in real time and convert it into a processable digital signal;

[0072] Program Structure:

[0073] Initialization: Set the pin mode and initialize the variables related to displacement sensor reading and electric telescopic rod control;

[0074] Read the displacement sensor: Read the value of the displacement sensor regularly in the loop;

[0075] Determine displacement: Determine whether the object deviates from the normal position based on the read value;

[0076] Sending control instructions: if the circular accessory 200 deviates from the normal position, sending instructions to the electric telescopic rod to restore it;

[0077] Waiting for recovery: During the recovery process, you can add a delay or loop wait until the object returns to its normal position.

[0078] Displacement judgment and instruction generation: A threshold of normal position is set in the program. When the displacement of the circular accessory is detected to exceed this threshold, it is judged that the object has deviated from the normal position and a corresponding control instruction is generated;

[0079] Control instruction sending and execution: sending the generated control instruction to the electric telescopic rod to drive it to perform telescopic movement to restore the normal position of the circular accessory 200;

[0080] Monitoring and feedback: During the recovery process, the signal of the laser displacement sensor 120 is continuously monitored to ensure that the circular accessory 200 is accurately restored to the normal position;

[0081] Since there are a first electric telescopic rod, a second electric telescopic rod, a third electric telescopic rod and a fourth electric telescopic rod, the four telescopic rods need to work together, and the control logic is:

[0082] Position setting: According to the target position of the circular accessory 200, the target length that each telescopic rod needs to reach is calculated.

[0083] Individual control: The controller sends individual instructions to each telescopic rod to achieve the predetermined target length.

[0084] Synchronization and coordination: ensure that the telescopic rods at both ends of the two sets of adjustment blocks 117 can start and end the action at the same time to keep the circular accessory 200 stable.

[0085] Feedback control: read the value of the laser displacement sensor 120, and adjust the lengths of the four telescopic rods according to the difference between the actual position and the target position to achieve closed-loop control.

[0086] Preferably, the ends of the first clamping member 101 and the second clamping member 102 are fixedly connected with a sliding column 103, the outer wall of the processing table 100 is connected with a fixing sleeve 104, the sliding column 103 is sealingly and slidingly connected with the fixing sleeve 104, the outside of the fixing sleeve 104 is connected to a pressure pump, and the pressure pump is used to pressurize the inside of the fixing sleeve 104, so that the sliding column 103 drives the first clamping member 101 or the second clamping member 102 to move closer to or away from each other, thereby clamping or loosening the circular accessory 200.

[0087] like Figure 5 As shown, a sliding groove 105 is provided on the top of the processing table 100, the first clamping member 101 and the second clamping member 102 are slidably connected to the sliding groove 105, the discharge groove 106 is provided at the bottom of the inner wall of the sliding groove 105, and a discharge channel 107 is provided at the bottom of the discharge groove 106, and the discharge channel 107 passes through the outside of the processing table 100.

[0088] like Figure 5 As shown, a pad 111 is disposed above the processing table 100 , and the pad 111 is installed between the first clamping member 101 and the second clamping member 102 . The pad 111 is used to hold the circular accessory 200 .

[0089] like Figure 5 As shown, a threaded column 113 is connected to the top of the processing table 100, and through holes 112 are opened at the four corners of the backing plate 111. The through holes 112 pass through the threaded column 113. The bottom of the backing plate 111 is elastically connected to the top of the processing table 100 through a spring. A threaded sleeve 114 is installed on the top of the threaded column 113, and the threaded sleeve 114 is threadedly connected to the threaded column 113.

[0090] By setting the pad 111, the circular accessory 200 can be supported to prevent the circular accessory 200 from sliding downward. The pad 111 is always located on the upper part of the threaded column 113 under the squeezing action of the spring. By rotating the threaded sleeve 114 to move the threaded sleeve 114 downward, the pad 111 can be driven to move downward.

[0091] like Figure 5 As shown, a hollow is provided in the middle of the backing plate 111 , and the hollow is used to allow the debris generated by the processing of the circular accessory 200 to be discharged into the discharge groove 106 below the backing plate 111 .

[0092] like Figure 2As shown, the two sides of the discharge groove 106 are inclined, and the discharge groove 106 is V-shaped.

Claims

1. A fixture for processing agricultural machinery parts, comprising a processing table (100), characterized in that: The processing table (100) is equipped with: A first clamping member (101) and a second clamping member (102) are used to clamp the circular accessory (200), wherein the first clamping member (101) and the second clamping member (102) are symmetrically arranged on the top of the processing table (100); a driving member, the driving member being used to drive the first clamping member (101) and the second clamping member (102) to move closer to each other or away from each other; a discharge trough (106), the discharge trough (106) being in communication with the outside of the processing table (100), and debris generated by the circular accessory (200) being able to be discharged from the discharge trough (106); a blower (109), wherein an air outlet end of the blower (109) faces between the first clamping member (101) and the second clamping member (102) and is aligned with the circular accessory (200); a visual sensor (110), the visual sensor (110) being installed in the processing table (100), and the visual sensor (110) being able to cover a splash range of processing debris of the circular accessory (200); An industrial computer, the visual sensor (110), the industrial computer and the blower (109) are connected via wire signals; A movable part (116) is installed on the top of the first clamping part (101) and the second clamping part (102); a mounting groove (115) is provided on the side walls of the first clamping part (101) and the second clamping part (102); the movable part (116) is fixedly installed in the mounting groove (115); an adjusting block (117) is installed on the top of the movable part (116); the adjusting block (117) is slidably connected to one side of the movable part (116); a convex plate (119) is connected to the end of the movable part (116); and both ends of the adjusting block (117) are connected to the convex plate (119) via telescopic parts (118); A laser displacement sensor (120) is fixedly mounted on the top of the processing table (100); a laser emission line of the laser displacement sensor (120) is aligned with the circular accessory (200); the laser emission line of the laser displacement sensor (120) is parallel to the telescopic line of the telescopic member (118); the telescopic members (118) at both ends of the adjustment block (117) above the first clamping member (101) and the second clamping member (102) are respectively a first electric telescopic rod, a second electric telescopic rod, a third electric telescopic rod and a fourth electric telescopic rod; the laser displacement sensor (120), the industrial computer and the telescopic member (118) are connected via wire signals.

2. A fixture for processing agricultural machinery accessories according to claim 1, characterized in that: The ends of the first clamping member (101) and the second clamping member (102) are both fixedly connected to a sliding column (103); the outer wall of the processing table (100) is connected to a fixing sleeve (104); the sliding column (103) is sealingly and slidingly connected to the fixing sleeve (104); and the outside of the fixing sleeve (104) is connected to a pressure pump.

3. The fixture for processing agricultural machinery accessories according to claim 1, characterized in that: A sliding groove (105) is provided on the top of the processing table (100), the discharge groove (106) is provided at the bottom of the inner wall of the sliding groove (105), and a discharge channel (107) is provided at the bottom of the discharge groove (106), and the discharge channel (107) passes through to the outside of the processing table (100).

4. A fixture for processing agricultural machinery accessories according to claim 1, characterized in that: A pad (111) is provided above the processing table (100), the pad (111) being installed between the first clamping member (101) and the second clamping member (102), and the pad (111) being used to support the circular accessory (200).

5. A fixture for processing agricultural machinery accessories according to claim 4, characterized in that: The top of the processing table (100) is connected to a threaded column (113); four corners of the backing plate (111) are provided with through holes (112); the through holes (112) pass through the threaded column (113); the bottom of the backing plate (111) is elastically connected to the top of the processing table (100) via a spring; a threaded sleeve (114) is installed on the top of the threaded column (113); the threaded sleeve (114) is threadedly connected to the threaded column (113).

6. A fixture for processing agricultural machinery accessories according to claim 5, characterized in that: A hollow is provided in the middle of the backing plate (111), and the hollow is used to allow debris generated by machining the circular accessory (200) to be discharged into a discharge groove (106) below the backing plate (111).

7. The fixture for processing agricultural machinery accessories according to claim 1, characterized in that: Both sides of the discharge groove (106) are arranged at an inclination, and the discharge groove (106) is in a V shape.

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