Workpiece upwarp height measuring system and measuring method

Abstract

The invention belongs to the technical field of automatic detection, and relates to a workpiece upwarp height measuring system and method. The measuring system comprises a feeder, a vibrating feeder and a sliding chute, workpieces are quantitatively conveyed into the vibrating feeder by the feeder, the workpieces are arranged by the vibrating feeder according to a preset direction and conveyed to the sliding chute, and a first separating door, a direction adjusting mechanism, a second separating door, a measuring mechanism and a third separating door are arranged along the sliding chute. The first material separating door is used for controlling the time when the workpiece enters the direction adjusting mechanism; the direction adjusting mechanism is used for detecting the direction of the workpiece and rotating the workpiece to a preset direction according to a detection result; the second material separating door is used for controlling the time when the workpiece is conveyed to the measuring mechanism; the measuring mechanism can press one end of the workpiece on the sliding chute and measure the upwarp height of the upwarp end; the third material separating door is used for controlling the time when the workpiece leaves the measuring mechanism. Workpiece batch detection and whole-course quality control are achieved, and the overall quality and consistency of products are improved.

Description

Technical Field

[0001] The present invention relates to a workpiece warpage height measurement system and a measurement method, belonging to the technical field of automated detection. Background Art

[0002] In the field of compressor manufacturing, the manufacturing precision of valve plates is crucial for ensuring the overall performance of compressors. Taking a warped valve plate as an example, one end of the valve plate is provided with a hole for easy assembly, while the other end is in a warped shape, and this design aims to meet specific hydrodynamic requirements inside the compressor. However, the warpage height of the valve plate is a key dimensional parameter, and its precision needs to be strictly controlled within the range of plus or minus 0.1 mm. The size of this tolerance directly affects the operating efficiency, sealing performance, and overall reliability of the compressor. If the warpage height of the valve plate deviates from this tolerance range, it may lead to a decline in compressor performance, an increase in energy consumption, and even cause failures.

[0003] Currently, for the detection of the warpage height of such valve plates, a detection scheme combining a dial indicator and a fixed block is generally adopted. The operation process of this scheme is relatively intuitive: First, the valve plate to be detected is firmly fixed to the bottom of a special fixed block through bolts to ensure the stability of the valve plate position during the detection process; subsequently, a dial indicator is installed on the fixed block, and the measuring needle of the dial indicator passes through a preset through hole on the fixed block and directly touches the warped end of the valve plate for measurement. This detection method relies on the high-precision reading ability of the dial indicator and can relatively accurately reflect the actual deviation of the warpage height of the valve plate.

[0004] Although this detection scheme based on a dial indicator and a fixed block is technically feasible, and the required fixture structure is relatively simple, easy to operate and maintain, due to the need for manual operation one by one during the detection process, it not only takes a long time but also is difficult to achieve rapid batch detection. Therefore, in actual production, only a sampling inspection method can be adopted, that is, only the valve plates in some production batches are detected. Although this approach reduces the detection cost to a certain extent, it also means that it is impossible to comprehensively and accurately grasp the dimensional qualification rate of all production parts, and only estimates can be made based on limited detection data. Although this estimation method reflects the overall quality trend to a certain extent, it is obviously insufficient for ensuring that each batch of valve plates meets strict tolerance requirements. Summary of the Invention

[0005] The purpose of the present invention is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.

[0006] The technical solution provided by the present invention is as follows: A workpiece warping height measurement system includes a feeder, a vibratory feeder, and a chute. The feeder is used to quantitatively convey workpieces to the vibratory feeder. The vibratory feeder is used to arrange the workpieces in a predetermined orientation and convey them to the chute. It further includes a first material separation door, a direction adjustment mechanism, a second material separation door, a measurement mechanism, and a third material separation door arranged along the chute. The first material separation door is arranged at the rear end of the direction adjustment mechanism and is used to control the timing of the workpiece entering the direction adjustment mechanism. The direction adjustment mechanism is used to detect the direction of the workpiece and rotate the workpiece clockwise or counterclockwise to a predetermined direction according to the detection result. The second material separation door is used to control the timing of the workpiece being conveyed to the measurement mechanism after the direction of the workpiece is adjusted. The measurement mechanism includes a pressure rod, a positive positioning drive cylinder, and a laser sensor for measuring the warping height of the workpiece. The positive positioning drive cylinder is arranged on one side of the chute and is used to drive the pressure rod to move perpendicular to the conveying direction of the chute. The laser sensor is arranged below the chute, and a through groove for the laser beam to pass through is provided at the bottom of the chute. The third material separation door is arranged at the front end of the measurement mechanism and is used to control the timing of the workpiece leaving the measurement mechanism.

[0007] Based on the above technical solution, the present invention can be further improved as follows:

[0008] Further, the chute is inclined along the conveying direction.

[0009] The beneficial effect of adopting the above further solution is that after the valve plates are arranged in a fixed orientation by the vibratory feeder and orderly enter the chute, they can continue to move along the preset inclined path by relying on their own gravity until they reach the predetermined position or undergo the next processing step.

[0010] Further, the direction adjustment mechanism includes a turntable, a rotation drive cylinder, and a detection sensor for detecting the direction of the workpiece. The rotation drive cylinder is used to drive the turntable to rotate. A groove is provided on the upper end surface of the turntable, and the turntable is located on the conveying path of the chute.

[0011] The beneficial effect of adopting the above further solution is that the direction adjustment mechanism can accurately detect the direction of the workpiece and automatically perform a 180-degree rotation adjustment when necessary, ensuring that the workpiece maintains the correct direction during subsequent processing or assembly, avoiding production delays and cost increases caused by incorrect directions, and the cooperation between the direction adjustment mechanism and the chute enables the workpiece to automatically complete the direction adjustment during the conveying process without additional processing steps.

[0012] Further, the measuring mechanism further includes a side positioning drive cylinder disposed on one side of the material sliding groove. The ejector rod of the side positioning drive cylinder can pass through the side wall of the material sliding groove to hold and position the workpiece from one side.

[0013] The beneficial effect of adopting the above further solution is that when the ejector rod of the side positioning drive cylinder extends, it can pass through the side wall of the material sliding groove and firmly hold and position the workpiece from one side, ensuring that the workpiece will not shift or shake during the detection process, thus greatly improving the accuracy and reliability of the measurement.

[0014] Further, it further includes a switch mechanism that communicates with the outlet of the material sliding groove and is used for diverting the workpiece after measurement.

[0015] The beneficial effect of adopting the above further solution is that through the switch mechanism, the automatic diversion processing of the workpiece after measurement is realized.

[0016] Further, the switch mechanism includes a switch drive cylinder, a movable tongue rail, a first turnout and a second turnout. The switch drive cylinder is drivingly connected to the tongue rail. The switch drive cylinder can drive the tongue rail to move between the outlet of the material sliding groove and the first turnout, or the switch drive cylinder can drive the tongue rail to move between the outlet of the material sliding groove and the second turnout.

[0017] The beneficial effect of adopting the above further solution is that it can intelligently direct qualified products and unqualified products to different paths according to the measurement results of the upward warping height of the workpiece, without manual intervention, greatly improving the automation level and processing efficiency of the production line.

[0018] Further, the vibratory feeder includes a base and a screening cylinder. The screening cylinder is installed on the base. A vibrator is provided in the base. A spiral chute is provided in the screening cylinder. A baffle is provided above the spiral chute. The baffle is used to remove overlapping workpieces and only allow single workpieces to pass below the baffle. A retaining edge is provided on one side of the spiral chute away from the screening cylinder wall. The height of a part of the retaining edge is higher than the thickness of the workpiece to be measured, and the height of a part of the retaining edge is lower than the thickness of the workpiece to be measured.

[0019] The beneficial effect of adopting the above further solution is that by providing a baffle above the spiral chute, overlapping workpieces can be effectively removed to ensure that only single workpieces can pass. Different heights of retaining edges are provided on the spiral chute. The high retaining edge can prevent the workpiece from sliding, while the low retaining edge allows the workpiece with the concave surface facing up to pass. The workpiece with the concave surface facing down will slide and fall into the screening cylinder under the action of vibration, thus realizing the automatic screening and directional conveying of the workpiece. The function of the vibrator enables the workpieces in the screening cylinder and the spiral chute to move continuously and stably.

[0020] Furthermore, a transition chute is provided between the spiral chute and the sliding chute, and a limiting pressure plate is further provided above the transition chute to prevent the workpiece from bouncing during transportation.

[0021] The beneficial effect of adopting the above further solution is that the limiting pressure plate restricts the bouncing of the workpiece during transportation, ensuring that the workpiece can smoothly and accurately enter the sliding chute, and reducing production delays or quality problems caused by unstable workpiece positions.

[0022] Furthermore, the feeder includes a hopper and a vibrating conveyor. A vibrator is provided on the hopper, and the vibrating conveyor is arranged at the lower end of the hopper for quantitatively transporting the workpieces in the hopper into the screening cylinder.

[0023] The beneficial effect of adopting the above further solution is that the vibrator on the hopper generates vibration, enabling the workpieces to orderly fall onto the vibrating conveyor through the opening at the bottom of the hopper. The vibrating conveyor then stably transports the workpieces into the screening cylinder according to the preset conveying speed and frequency, ensuring the accuracy and continuity of workpiece transportation. This feeder realizes automated transportation, greatly reducing the need for manual intervention. The operator only needs to place the valve plates to be detected into the hopper, and the feeder can automatically complete the subsequent transportation work, thereby reducing the labor intensity and improving the production efficiency.

[0024] A method for measuring the upward warping height of a workpiece, using the workpiece upward warping height measurement system, includes the following steps:

[0025] Quantitatively transport the workpiece to the vibrating feeder through the feeder, and the vibrating feeder arranges the workpieces in a predetermined orientation and transports them to the first separation door;

[0026] Open the first separation door and close the second separation door. The workpiece slides into the groove of the turntable of the direction adjustment mechanism, and then close the first separation door;

[0027] The direction adjustment mechanism detects the direction of the workpiece and rotates the workpiece clockwise or counterclockwise to the predetermined direction according to the detection result. Open the second separation door, and the workpiece continues to be transported along the sliding chute;

[0028] Close the third separation door. When the workpiece reaches the position of the measurement mechanism, close the second separation door, start the positive positioning driving cylinder, the pressing rod presses against one end of the workpiece, and the laser sensor measures the upward warping height of the workpiece through the through groove at the bottom of the sliding chute;

[0029] After the measurement is completed, open the third separation door, and according to the measurement result, use the switch mechanism to divert the measured workpieces.

[0030] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: First, through the coordinated action of the feeder and the vibratory feeder, the workpieces are quantitatively and conveyed to the chute in a predetermined orientation. Subsequently, the direction adjustment mechanism can identify the direction of the workpieces and adjust them to the required predetermined direction through clockwise or counterclockwise rotation. When the workpieces are transferred to the measurement station, the positive positioning driving cylinder is activated, and its ejector rod firmly holds one end of the workpiece. At this time, the laser sensor can accurately measure the upward warping height of the workpiece. In addition, through the first material separation door, the second material separation door, and the third material separation door, the present invention realizes effective control of the flow of workpieces at each processing stage. In summary, the present invention successfully realizes the highly automated processing of batch workpieces from feeding to measurement, ensuring that each workpiece undergoes strict quality inspection, thereby significantly improving the overall quality and consistency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings.

[0032] Figure 1 is a three-dimensional structural schematic diagram of the upward warping height measurement system of the workpieces of the present invention;

[0033] Figure 2 is a three-dimensional structural schematic diagram of the present invention with the first material separation door, the direction adjustment mechanism, the second material separation door, the measurement mechanism, the third material separation door, and the switch mechanism arranged along the chute;

[0034] Figure 3 is a structural schematic diagram of the chute of the present invention;

[0035] Figure 4 is a three-dimensional structural schematic diagram of the direction adjustment mechanism of the present invention;

[0036] Figure 5 is a three-dimensional structural schematic diagram of the measurement mechanism of the present invention;

[0037] Figure 6 is a three-dimensional structural schematic diagram of the switch mechanism of the present invention;

[0038] Figure 7 is a three-dimensional structural schematic diagram of the vibratory feeder of the present invention;

[0039] Figure 8 is a structural schematic diagram of the valve plate moving on the spiral chute of the present invention;

[0040] Figure 9 For the present invention Figure 8 Enlarged view of part A;

[0041] Figure 10 For the present invention Figure 8 Enlarged view of part B;

[0042] Figure 11 Schematic structural diagram of the valve plate;

[0043] Figure 12 For Figure 11 Side view;

[0044] In the figure, 1 is the feeder; 101 is the hopper; 102 is the vibrating conveyor; 2 is the vibrating feeder; 201 is the base; 202 is the screening cylinder; 203 is the spiral chute; 204 is the baffle; 205 is the low edge; 206 is the high edge; 207 is the transition chute; 208 is the limiting pressing plate; 3 is the sliding chute; 4 is the first separating door; 5 is the direction adjusting mechanism; 501 is the turntable; 502 is the rotary driving cylinder; 6 is the second separating door; 7 is the measuring mechanism; 701 is the pressing rod; 702 is the positive positioning driving cylinder; 703 is the laser sensor; 704 is the side positioning driving cylinder; 8 is the third separating door; 9 is the switch mechanism; 901 is the switch driving cylinder; 902 is the tongue rail; 903 is the first turnout; 904 is the second turnout; 10 is the valve plate. Detailed implementation mode

[0045] The serial numbers assigned to components in this text, such as "first", "second", etc., are only used to distinguish the described objects and do not imply any priority in order or specific technical meaning. In addition, the concepts of "connection" and "coupling" mentioned in this application, unless otherwise specifically stated, are considered to include both direct connection (coupling) and indirect connection (coupling).

[0046] When interpreting the description of this application, it is necessary to clarify that the orientation or positional relationship indicated by terms such as "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. is based on the perspective and layout shown in the drawings, aiming to facilitate the description and simplify the description process, rather than an absolute limitation on the actual orientation, construction method, and operation mode of the described device or component. Therefore, these terms should not be understood as restrictive interpretations of the content of this application.

[0047] The principles and features of the present invention are described below in conjunction with examples. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0048] As Figure 1 - Figure 10As shown in the figure, a workpiece warping height measurement system includes a feeder 1, a vibratory feeder 2, and a chute 3. The feeder 1 is used to quantitatively convey workpieces to the vibratory feeder 2. The vibratory feeder 2 is used to arrange the workpieces in a predetermined orientation and convey them to the chute 3. As Figure 2 shown, it further includes a first material separation door 4, a direction adjustment mechanism 5, a second material separation door 6, a measurement mechanism 7, and a third material separation door 8 arranged along the chute 3. The first material separation door 4 is arranged at the rear end of the direction adjustment mechanism 5 and is used to control the timing of the workpiece entering the direction adjustment mechanism 5. The direction adjustment mechanism 5 is used to detect the direction of the workpiece and, according to the detection result, rotate the workpiece 180° clockwise or counterclockwise to turn it to the predetermined direction, and then open the second material separation door 6, and the workpiece can continue to be conveyed along the chute 3. The second material separation door 6 is arranged between the direction adjustment mechanism 5 and the measurement mechanism 7 and is used to control the timing of the workpiece being conveyed to the measurement mechanism 7 after the direction of the workpiece is adjusted. As Figure 5 shown, the measurement mechanism 7 includes a pressure rod 701, a positive positioning drive cylinder 702, and a laser sensor 703 for measuring the warping height of the workpiece. The positive positioning drive cylinder 702 can drive the pressure rod 701 to reciprocate in a direction perpendicular to the conveying direction of the chute 3. The laser sensor 703 is arranged below the chute 3. A through groove for the laser beam to pass through is provided at the bottom of the chute 3. The positive positioning drive cylinder 702 can drive the pressure rod 701 to press one end of the workpiece against the chute 3 and measure the warping height of the warping end through the laser sensor 703. The third material separation door 8 is arranged at the front end of the measurement mechanism 7 and is used to control the timing of the workpiece leaving the measurement mechanism 7. The measurement mechanism 7 further includes a side positioning drive cylinder 704. The side positioning drive cylinder 704 is arranged on one side of the chute 3, and the ejector rod of the side positioning drive cylinder 704 can pass through the side wall of the chute 3 to hold and position the workpiece from one side.

[0049] In this embodiment, taking Figure 9 and Figure 10 the valve plate 10 shown as an example to illustrate the working process and working principle of the workpiece warping height measurement system of the present invention. One end of the illustrated valve plate 10 is warped, and the other end is provided with a positioning hole. One surface presents a concave surface, and the other surface presents a convex surface. The concave surface is set as the front surface, the convex surface is set as the back surface, the warped end is the front end, and the end with the positioning hole is the rear end. Figure 10 The figure shown is a side view of the valve plate 10 placed with the concave surface facing up and the convex surface facing down.

[0050] More specifically, the sliding chute 3 is inclined along the conveying direction. After the valve plates 10 are arranged directionally by the vibratory feeder 2 and enter the sliding chute 3 orderly, they can continue to move along the preset inclined path by relying on their own gravity until they reach the predetermined position or proceed to the next step of processing.

[0051] As Figure 4 shown, the direction adjustment mechanism 5 includes a turntable 501, a rotary drive cylinder 502, and a detection sensor (not shown in the figure) for detecting the direction of the workpiece. The detection sensor is mounted above the turntable 501 through a bracket. The rotary drive cylinder 502 is used to drive the turntable 501 to rotate. A groove is provided on the upper end surface of the turntable 501. The turntable 501 is located on the conveying path of the sliding chute 3. When the first baffle door 4 is opened, the valve plates 10 will slide into the groove of the turntable 501. At this time, the detection sensor is activated and detects the front and rear directions of the valve plates 10. If the detection result shows that the front and rear directions of the valve plates 10 do not conform to the preset correct direction, the system will immediately activate the rotary drive cylinder 502. Driven by the rotary drive cylinder 502, the turntable 501 will drive the valve plates 10 to rotate 180°, thereby realizing the swapping of the front and rear directions of the valve plates 10. In the embodiments of the present invention, the type of the detection sensor is not limited. The detection sensor can adopt an image recognition sensor, a laser displacement sensor, or a photoelectric sensor. The image recognition sensor can capture the workpiece image through a camera and use an image processing algorithm to identify the direction of the workpiece. The laser displacement sensor can emit a laser beam and detect the position of the reflected light, thereby measuring the displacement or shape of the workpiece surface. The photoelectric sensor judges the position and direction of the workpiece by emitting a light beam and detecting the reflection or interruption situation. As long as the detection sensor can realize the direction detection function, it should be within the protection scope of the present invention.

[0052] As Figure 6 shown, the workpiece warping height measurement system further includes a switch mechanism 9. The switch mechanism 9 is communicated with the outlet of the sliding chute 3 and is used for diverting the measured workpieces. Specifically, the switch mechanism 9 includes a switch drive cylinder 901, a movable tongue rail 902, a first turnout 903, and a second turnout 904. The switch drive cylinder 901 is drivingly connected to the tongue rail 902. The switch drive cylinder 901 can drive the tongue rail 902 to move between the outlet of the sliding chute 3 and the first turnout 903, or the switch drive cylinder 901 can drive the tongue rail 902 to move between the outlet of the sliding chute 3 and the second turnout 904. The switch mechanism 9 can intelligently direct the qualified products and unqualified products to different paths according to the measurement results of the workpiece warping height, and allows adjusting the diversion path according to actual needs. For example, the first turnout 903 can be used for the subsequent processing or packaging of qualified products, while the second turnout 904 can be used for the recycling or reprocessing of unqualified products.

[0053] As Figure 7 - Figure 10 shown, the vibratory feeder 2 includes a base 201 and a screening cylinder 202. The screening cylinder 202 is mounted on the base 201. A vibrator is provided in the base 201 and is connected to the screening cylinder 202. The upper part of the screening cylinder 202 is open, and a discharge port is provided on the cylinder wall of the screening cylinder 202. A spiral chute 203 is provided in the screening cylinder 202. The width of the spiral chute 203 is adapted to the width of the workpiece to be conveyed. The end of the spiral chute 203 is docked with the chute 3 through a transition chute 207. A baffle 204 is provided on the spiral chute 203. The height of the lower edge of the baffle 204 from the spiral chute 203 only allows a single piece of workpiece to pass under the baffle 204. Therefore, the baffle 204 can eliminate overlapping workpieces. A retaining edge is provided on one side of the spiral chute 203 away from the cylinder wall of the screening cylinder 202. The height of a part of the retaining edge is higher than the thickness of the workpiece to be measured, which is called the high retaining edge 206, and the height of a part of the retaining edge is less than the thickness of the workpiece to be measured, which is called the low retaining edge 205.

[0054] In this embodiment, the vibratory feeder 2 can ensure that the valve plate 10 is conveyed into the chute 3 with the front side facing up and the back side facing down. The specific working process is as follows: After the vibrator is started, the irregularly stacked valve plates 10 at the bottom of the screening cylinder 202 will successively enter the spiral chute 203 in the screening cylinder 202 and move toward the outlet side along the spiral chute 203. Since the width of the spiral chute 203 is approximately equal to the width of one valve plate 10, only one row of valve plates 10 can pass through. When the valve plate 10 enters the spiral chute 203, it may be facing up, facing down, or overlapping. When the valve plate 10 passes by the baffle 204, the overlapping valve plates 10 will be blocked by the baffle 204, and only a single piece of workpiece can pass through the chute under the baffle 204 (refer to Figure 10)。The valve piece 10 of the baffle 204 continues to advance along the spiral chute 203. When the valve piece 10 passes through the chute area with the low retaining edge 205, its passing situation will vary according to the orientation of the valve piece 10. Specifically, if the concave surface of the valve piece 10 faces upward and the convex surface faces downward, the area of its convex surface in contact with the spiral chute 203 is large, and the side surface of the valve piece 10 can also contact the low retaining edge 205. The low retaining edge 205 can prevent the valve piece 10 from slipping, and the valve piece 10 can pass smoothly. If the concave surface of the valve piece 10 faces downward and the convex surface faces upward, the contact area of its concave surface with the spiral chute 203 is small, and the middle position of the valve piece 10 is higher than the low retaining edge 205, and the side surface of the valve piece 10 is higher than the low retaining edge 205. Therefore, the valve piece 10 with the concave surface downward will slide and fall into the screening cylinder 202 under the vibration action. Therefore, the valve piece 10 with the back surface upward will fall back into the screening cylinder 202 from the side of the low retaining edge 205 under the vibration of the vibrator, while the low retaining edge 205 can effectively prevent the valve piece 10 with the front surface upward from falling (refer to Figure 9 ). The valve piece 10 with the front surface upward can pass through the spiral chute 203 smoothly and enter the slide chute 3 in sequence. In this way, the automatic screening and directional conveying of workpieces are realized, and the vibration of the vibrator enables the workpieces in the screening cylinder 202 and the spiral chute 203 to move continuously and stably.

[0055] A transition chute 207 is further provided between the spiral chute 203 and the slide chute 3, and a limit pressing plate 208 is further provided above the transition chute 207. The limit pressing plate 208 restricts the jumping of the workpiece during the conveying process, ensures that the workpiece can enter the slide chute 3 smoothly and accurately, and reduces the production delay or quality problems caused by the unstable position of the workpiece.

[0056] The feeder 1 includes a hopper 101 and a vibrating conveyor 102. The hopper 101 is used to store the workpieces to be conveyed. A vibrator is provided on the hopper 101. The vibrating conveyor 102 is arranged at the lower end of the hopper 101 and is used to quantitatively convey the workpieces in the hopper 101 into the screening cylinder 202. Specifically, a vibrator is provided on the hopper 101 of the feeder 1 to drive the hopper 101 to vibrate. When the valve piece 10 to be detected is placed in the hopper 101, the vibrator will generate a vibration effect. Driven by the vibrator, the valve piece 10 will gradually fall onto the vibrating conveyor 102 through the opening at the lower end of the hopper 101, and the vibrating conveyor 102 will convey these valve pieces 10 to the screening cylinder 202 stably and continuously in a quantitative manner for subsequent detection or processing procedures.

[0057] In this embodiment, the first material separating door 4, the second material separating door 6 and the third material separating door 8 all include a door body and a switch driving cylinder, and the switch driving cylinder is used to control the opening and closing of the door body. When the switch driving cylinder drives the door body to move to the sliding groove 3, it can prevent the workpiece from continuing to move downward. When the switch driving cylinder drives the door body to leave the sliding groove 3, the workpiece is allowed to continue to move downward to the next workstation.

[0058] In this embodiment, the driving cylinder adopts a pneumatic cylinder. Of course, the driving cylinder may also adopt an electric cylinder or a hydraulic cylinder.

[0059] A method for measuring the warping height of a workpiece, using the workpiece warping height measuring system, comprises the following steps:

[0060] The workpieces are quantitatively conveyed to the vibrating loader 2 by the feeder 1, and the vibrating loader 2 conveys the workpieces one by one to the first material separation door 4 in a direction with the concave surface facing upward.

[0061] The first material separation door 4 is opened and the second material separation door 6 is closed, the workpiece slides into the groove of the turntable 501 of the direction adjustment mechanism 5, and then the first material separation door 4 is closed.

[0062] The direction adjustment mechanism 5 detects the direction of the valve plate 10. If the upturned end of the valve plate 10 faces forward and the end with the positioning hole faces backward, the rotary drive cylinder 502 does not move, the second material separation door 6 is opened, and the workpiece continues to be transported along the slide trough 3; if the upturned end of the valve plate 10 faces backward and the end with the positioning hole faces forward, the system starts the rotary drive cylinder 502. Driven by the rotary drive cylinder 502, the turntable 501 drives the valve plate 10 to rotate 180 degrees to the correct direction, and then the second material separation door 6 is opened, and the workpiece continues to be transported along the slide trough 3.

[0063] When the workpiece moves along the slide trough 3 to the predetermined measuring position, the third material separation door 8 is first closed to prevent subsequent workpieces from entering the measuring area. Subsequently, the second material separation door 6 is closed to prevent subsequent workpieces from continuing to enter the measuring position. Above the measuring position, a sensor is provided, which can detect whether the workpiece has reached the measuring position. Once the sensor senses that the workpiece has arrived, the system will start the positive positioning drive cylinder 702. The pressure rod 701 of the positive positioning drive cylinder 702 firmly supports the end of the workpiece with the positioning hole to ensure that the workpiece remains stable during the measurement process. Next, the system will start the side positioning drive cylinder 704, and the top rod of the side positioning drive cylinder 704 supports the workpiece from one side to further ensure the positioning accuracy of the workpiece in the horizontal direction. After ensuring that the workpiece is stable and accurately positioned, the system will start the laser sensor 703. The laser beam emitted by the laser sensor 703 will pass through the through groove at the bottom of the slide trough 3 and directly irradiate the workpiece, thereby measuring the height of the workpiece upturned.

[0064] After the measurement is completed, the third material separation door 8 opens. If the valve plate 10 is qualified, the turnout driving cylinder 901 can drive the tongue rail 902 to move between the outlet of the material chute 3 and the first turnout 903, and the qualified products move from the first turnout 903 to the subsequent processing procedures. If the valve plate 10 is unqualified, the turnout driving cylinder 901 can drive the tongue rail 902 to move between the outlet of the material chute 3 and the second turnout 904, and the unqualified products move from the second turnout 904 to the recycling area.

[0065] The present invention has successfully achieved highly automated processing of batch workpieces from feeding to measurement, ensuring that each workpiece undergoes strict quality inspection, thereby significantly improving the overall quality and consistency of the product.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A workpiece warping height measurement system, comprising a feeder, a vibrating feeder and a slide trough, wherein the feeder is used to quantitatively convey the workpieces into the vibrating feeder, and the vibrating feeder is used to arrange the workpieces in a predetermined direction and convey them to the slide trough, characterized in that: It also includes a first material separation door, a direction adjustment mechanism, a second material separation door, a measuring mechanism and a third material separation door arranged along the slide trough; the first material separation door is arranged at the rear end of the direction adjustment mechanism, and is used to control the timing of the workpiece entering the direction adjustment mechanism; the direction adjustment mechanism is used to detect the direction of the workpiece and rotate the workpiece to a predetermined direction according to the detection result; the second material separation door is used to control the timing of the workpiece being transported to the measuring mechanism; the measuring mechanism includes a pressure rod, a positive positioning drive cylinder and a laser sensor for measuring the upward height of the workpiece, the positive positioning drive cylinder is arranged on one side of the slide trough, and is used to drive the pressure rod to move, the laser sensor is arranged below the slide trough, and the bottom of the slide trough is provided with a through groove for the laser beam to pass through; the third material separation door is arranged at the front end of the measuring mechanism, and is used to control the timing of the workpiece leaving the measuring mechanism.

2. The workpiece warping height measurement system according to claim 1, characterized in that: The sliding trough is arranged obliquely along the conveying direction.

3. The workpiece warping height measurement system according to claim 1 or 2, characterized in that: The direction adjustment mechanism includes a turntable, a rotary drive cylinder and a detection sensor for detecting the direction of a workpiece. The rotary drive cylinder is used to drive the turntable to rotate. A groove is provided on the upper end surface of the turntable. The turntable is located on the conveying path of the slide trough.

4. The workpiece warping height measurement system according to claim 1, characterized in that: The measuring mechanism further comprises a side positioning drive cylinder, which is arranged on one side of the slide trough. The push rod of the side positioning drive cylinder can pass through the side wall of the slide trough to hold the workpiece in position from one side.

5. The workpiece warping height measurement system according to claim 1, characterized in that: It also includes a switch mechanism, which is connected to the outlet of the sliding trough and is used for diverting the measured workpieces.

6. The workpiece warping height measurement system according to claim 5, characterized in that: The switch mechanism includes a switch drive cylinder, a movable tongue rail, a first branch track and a second branch track. The switch drive cylinder is drivingly connected to the tongue rail. The switch drive cylinder can drive the tongue rail to move between the outlet of the slide trough and the first branch track, or the switch drive cylinder can drive the tongue rail to move between the outlet of the slide trough and the second branch track.

7. The workpiece warping height measurement system according to claim 1, characterized in that: The vibrating loader comprises a base and a screening cylinder, wherein the screening cylinder is mounted on the base, a vibrator is arranged in the base, a spiral material channel is arranged in the screening cylinder, a baffle is arranged above the spiral material channel, and the baffle is used to remove overlapping workpieces, and a rib is arranged on a side of the spiral material channel away from the screening cylinder wall, wherein a part of the rib has a height higher than the thickness of the workpiece to be measured, and a part of the rib has a height lower than the thickness of the workpiece to be measured.

8. The workpiece warping height measurement system according to claim 7, characterized in that: A transition channel is provided between the spiral channel and the slide trough, and a limiting pressure plate is provided above the transition channel to prevent the workpiece from jumping during the conveying process.

9. The workpiece warping height measurement system according to claim 7 or 8, characterized in that: The feeder comprises a hopper and a vibrating conveyor. The hopper is provided with a vibrator. The vibrating conveyor is arranged at the lower end of the hopper and is used for quantitatively conveying the workpieces in the hopper into the screening cylinder.

10. A method for measuring the warping height of a workpiece, characterized in that: The workpiece warping height measurement system according to any one of claims 1 to 9 comprises the following steps: The workpieces are quantitatively conveyed to the vibrating loader by the feeder, and the vibrating loader arranges the workpieces in a predetermined direction and conveys them to the first partition; Open the first material separation door and close the second material separation door, slide the workpiece into the groove of the turntable of the direction adjustment mechanism, and then close the first material separation door; The direction adjustment mechanism detects the direction of the workpiece, and according to the detection result, rotates the workpiece clockwise or counterclockwise to a predetermined direction, opens the second material separation door, and the workpiece continues to be transported along the slide trough; Close the third material separation door. When the workpiece reaches the position of the measuring mechanism, close the second material separation door, start the positive positioning drive cylinder, and the pressure rod will hold one end of the workpiece. The laser sensor will measure the upward height of the workpiece through the through slot at the bottom of the slide trough. After the measurement is completed, the third material separation door is opened, and the measured workpieces are diverted according to the measurement results using the switch mechanism.

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