Full-automatic spring plunger height and torsion detection equipment

Abstract

The utility model discloses a full-automatic spring plunger height and torsion detection device which comprises an automatic carrying mechanism, an automatic detection mechanism and a control system. The automatic detection mechanism comprises a lower die assembly, a pressure sensor and a servo lifting driving unit; a detection positioning groove with an opening in the upper end is formed in the lower die assembly; the control system comprises a PLC and a touch screen connected to the PLC, the PLC is further connected with a communication interface, and the touch screen is used for setting the torsion detection height so that the servo lifting driving unit can drive the pressure sensor to move downwards to the set torsion detection height; the automatic carrying mechanism comprises an automatic clamping jaw unit, and the automatic clamping jaw unit transfers the spring plungers into the detection positioning grooves and discharges the detected spring plungers to a corresponding qualified product area and a defective product area according to a qualified product area and a defective product area. Therefore, the height and the torsion of the spring plunger can be automatically detected on the same automatic detection mechanism, labor is saved, and the detection efficiency, the detection precision and the stability are effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of spring column detection technology, in particular to a fully automatic spring plunger height and torque detection device. Background Art

[0002] Spring plungers, also known as positioning beads, spring wave beads, bump beads, and ball plungers, are widely used for positioning in various industries. They are widely used in electronic products, sporting goods, furniture accessories, lighting accessories, tools and equipment, mold fixtures, sliding positioning components, rotating positioning components, and other products. Spring plungers consist of a main housing, a compression spring, and a sphere or stepped cylinder. The compression spring is set in the main housing, and the sphere or stepped cylinder is pressed on the top of the compression spring. The top of the peripheral side wall is riveted inward to confine the sphere or stepped cylinder in the main housing. When pressed downward, it can move downward. When the pressure is reduced or released, it returns to its original position under the upward elastic force of the compression spring.

[0003] The current method for testing the dimensions (deformation height) and spring force of spring plungers involves manual dimensional measurement using calipers and micrometers and testing the spring force using a semi-automatic pressure tester. Loading the spring plunger during testing is manual, requiring manual handling for dimensional measurement and placement on the semi-automatic pressure tester for spring force testing. This is inefficient and prone to fatigue. Furthermore, due to human error, manual testing accuracy and yield cannot be guaranteed. Furthermore, the semi-automatic pressure tester requires different fixtures for different spring plunger sizes, necessitating fixture replacement.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide a fully automatic spring plunger height and torque detection device. Through the setting of an automatic transport mechanism, an automatic detection mechanism and a control system, it realizes automatic detection of the spring plunger height and torque on the same automatic detection mechanism, saving labor and effectively improving detection efficiency, detection accuracy and stability.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A fully automatic spring plunger height and torque detection device comprises an automatic transport mechanism, an automatic detection mechanism and a control system; the control system is connected to the automatic transport mechanism and the automatic detection mechanism respectively;

[0008] The automatic detection mechanism includes a lower mold assembly, a pressure sensor, and a servo lifting drive unit; the lower mold assembly is provided with a detection positioning groove with an open upper end, the pressure sensor is located above the detection positioning groove, and the servo lifting drive unit drives the pressure sensor to move up and down;

[0009] The control system includes a PLC and a touch screen connected to the PLC, the PLC is also connected to a communication interface, and the touch screen is used to set the torque detection height so that the servo lifting drive unit drives the pressure sensor to move down to the set torque detection height;

[0010] The automatic transport mechanism includes an automatic gripper unit, which transfers the spring plunger to the detection positioning groove and separates the spring plungers after detection into the corresponding qualified product area and defective product area according to the classification.

[0011] As a preferred solution, the lower mold assembly includes a lower mold frame and a top plate connected to the lower mold frame, the detection positioning groove is opened on the top plate, and the top end of the top plate corresponds to the peripheral area of ​​the detection positioning groove as a spring plunger placement limit surface.

[0012] As a preferred solution, the top plate is detachably connected to the lower mold frame.

[0013] As a preferred solution, the servo lifting drive unit is a servo electric cylinder, the output end of the servo electric cylinder is provided with a detection head facing downward, and the pressure sensor is provided on the detection head.

[0014] As a preferred solution, the upper end of the detection positioning groove has an upward and outward-expanding guide opening.

[0015] As a preferred solution, the automatic gripper unit includes a first automatic gripper unit and a second automatic gripper unit; the automatic conveying mechanism also includes a left and right lateral movement drive unit; the first automatic gripper unit and the second automatic gripper unit both include a gripper assembly that automatically opens and closes left and right, a front and rear longitudinal movement drive assembly, and an up and down lifting drive assembly, the front and rear longitudinal movement drive assembly drives the gripper assembly to move forward and backward longitudinally, and the up and down lifting drive assembly drives the front and rear longitudinal movement drive assembly and the gripper assembly to move up and down together; the left and right lateral movement drive unit drives the first automatic gripper unit and the second automatic gripper unit to move horizontally together, so that the first automatic gripper unit transfers the spring plunger to the detection positioning groove, and the second automatic gripper unit separates the spring columns after inspection into qualified products and defective products and discharges them into the corresponding qualified product area and defective product area.

[0016] As a preferred solution, the clamping jaw assembly is a spring clamping jaw that can adapt to spring plungers of different sizes and diameters.

[0017] As a preferred solution, an automatic loading and positioning mechanism is provided on the left side of the automatic detection mechanism; the automatic loading and positioning mechanism includes a linear loading track, a positioning turntable and a jacking drive assembly; a plurality of spring plunger positioning grooves are arranged at intervals on the periphery of the positioning turntable, the spring plunger positioning grooves pass through the upper and lower ends of the positioning turntable, and pass through the outer peripheral side of the positioning turntable, the positioning turntable is controlled by a rotation drive unit to rotate horizontally, the output end of the linear loading track corresponds to the spring plunger positioning groove; and the jacking drive assembly is arranged below the positioning turntable to lift the spring plunger in the spring plunger positioning groove upward and protrude above the positioning turntable.

[0018] As a preferred solution, the jacking drive assembly includes a jacking cylinder and a push column driven up and down by the jacking cylinder. The spring plunger positioning groove passes through the upper and lower end surfaces of the positioning turntable. When the push column pushes the spring plunger upward, it will extend upward into the spring plunger positioning groove.

[0019] As a preferred solution, it further includes a frame; the frame includes a lower frame and an upper frame, the automatic loading and positioning mechanism, the automatic detection mechanism, and the automatic conveying mechanism are arranged on the lower frame, the upper frame is connected to the top of the lower frame to cover the automatic loading and positioning mechanism, the automatic conveying mechanism, and the automatic detection mechanism, and the control system is set on the upper frame.

[0020] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it mainly realizes automatic detection of the spring plunger height and torque on the same automatic detection mechanism through the setting of the automatic handling mechanism, the automatic detection mechanism and the control system, saving labor and effectively improving the detection efficiency, detection accuracy and stability.

[0021] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of a fully automatic spring plunger height and torque detection device according to an embodiment of the present utility model;

[0023] Figure 2 This is another perspective view of the fully automatic spring plunger height and torque detection device according to an embodiment of the present invention (the upper frame is not shown);

[0024] Figure 3This is another three-dimensional diagram of the fully automatic spring plunger height and torque detection device according to an embodiment of the present invention (the upper frame and the lower frame are not shown);

[0025] Figure 4 yes Figure 3 Middle K-direction view;

[0026] Figure 5 yes Figure 3 Cross-section at AA;

[0027] Figure 6 yes Figure 2 A partial enlarged view of point B in the middle;

[0028] Figure 7 This is a three-dimensional diagram of the automatic loading and positioning mechanism, lower mold assembly, automatic transport mechanism, and qualified product area and defective product area of ​​an embodiment of the present utility model;

[0029] Figure 8 yes Figure 7 Middle M-direction view;

[0030] Figure 9 This is another perspective view of the automatic loading and positioning mechanism, lower mold assembly, automatic transport mechanism, and qualified product area and defective product area of ​​an embodiment of the present invention;

[0031] Figure 10 This is a partial three-dimensional diagram of the automatic loading and positioning mechanism of an embodiment of the present utility model;

[0032] Figure 11 It is a side view of the automatic transport mechanism of an embodiment of the present utility model;

[0033] Figure 12 It is a cross-sectional view of a spring plunger at minimum load;

[0034] Figure 13 It is a cross-sectional view of a spring plunger at maximum load;

[0035] Figure 14 This is a control connection block diagram of a fully automatic spring plunger height and torque detection device according to an embodiment of the present utility model;

[0036] Figure 15 It is a diagram showing the steps of a detection method of a fully automatic spring plunger height and torque detection device according to an embodiment of the present utility model.

[0037] Description of the accompanying symbols: spring plunger 1, main housing 1a, compression spring 1b, floating head 1c, flange 1d, automatic loading and positioning mechanism 100, automatic conveying mechanism 200, automatic detection mechanism 300, qualified product area 401, defective product area 402, frame 500, lower frame 501, upper frame 502, control system 600, spring plunger positioning groove 101, linear loading track 102, positioning turntable 103, jacking drive assembly 104, jacking cylinder 1041, push pin 1042, adjustment Section plate 1043, longitudinal adjustment slot 1044, sensor 105, left and right lateral movement drive unit 201, first automatic clamping jaw unit 202, second automatic clamping jaw unit 203, clamping jaw assembly 21', clamping jaw cylinder 211', clamping jaw 212', front and rear longitudinal movement drive assembly 22', up and down lifting drive assembly 23', detection positioning slot 301', lower mold assembly 301, stand 302, pressure sensor 303, servo lifting drive unit 304, lower mold frame 3011, top plate 3012. DETAILED DESCRIPTION

[0038] Please refer to Figures 1 to 15 As shown, it shows the specific structure of an embodiment of the present utility model.

[0039] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0040] A fully automatic spring plunger height and torque detection device includes an automatic loading and positioning mechanism 100, an automatic conveying mechanism 200, an automatic detection mechanism 300, a frame 500, a control system 600, a qualified product collection box, and a defective product collection box.

[0041] The frame 500 includes a lower frame 501 and an upper frame 502. The automatic loading and positioning mechanism 100, the automatic detection mechanism 300, and the automatic conveying mechanism 200 are arranged on the lower frame 501. The upper frame 502 is connected to the top of the lower frame 501 to cover the automatic loading and positioning mechanism 100, the automatic conveying mechanism 200, and the automatic detection mechanism 300. The control system 600 is arranged on the upper frame 502. The control system 600 includes a PLC and a touch screen. The control system 600 is provided with a communication interface, such as a USB interface. Typically, the control system 600 is also connected to an audible and visual alarm, etc. For example, when the equipment fails or the spring plunger product is out of material, the audible and visual alarm can be used to prompt.

[0042] The automatic loading and positioning mechanism 100 has a spring plunger positioning groove 1011, so that the spring plunger 1 is vertically arranged in the spring plunger positioning groove 101;

[0043] The automatic detection mechanism 300 includes a lower mold assembly 301, a pressure sensor 303 and a servo lifting drive unit 304; the lower mold assembly 301 is provided with a detection positioning groove 301' with an open upper end, the pressure sensor is located above the detection positioning groove 301', and the servo lifting drive unit 304 drives the pressure sensor 303 to move up and down; when the servo lifting drive unit 304 drives the pressure sensor 303 to move downward to a first height, the pressure sensor 303 contacts the floating head of the spring plunger and stops descending, and the height dimension is converted (because the upper end surface of the detection positioning groove, that is, the height of the placement positioning surface of the spring plunger is known and determined, the distance that the servo lifting drive unit controls the pressure sensor to move downward can be calculated, so in the control The height of the spring plunger, also referred to as the highest value of the floating head protrusion, can be easily calculated in the control system). When the servo lifting drive unit drives the pressure sensor to continue to move downward to a second height (the second height is set and adjusted by the control system), the spring reaction force inside the spring plunger is transmitted to the pressure sensor to test the spring torque. At the same time, the control system automatically records the torque data, determines qualified products and defective products, and forms a test history table, which can be exported via USB. Preferably, the torque data automatically recorded by the control system, as well as the data for determining qualified products and defective products, form a test history table, which can be presented on a display screen connected to the control system, and / or the test history table can be sent remotely or exported by a data interface.

[0044] The automatic transport mechanism 200 automatically transfers the spring plunger on the spring plunger positioning groove to the detection positioning groove, and separates the spring plungers after detection into the corresponding qualified product area and defective product area (in this embodiment, specifically refers to the qualified product collection box and the defective product collection box) according to qualified products and defective products.

[0045] Specifically:

[0046] The automatic loading and positioning mechanism 100 includes a linear loading track 102, a positioning turntable 103 and a jacking drive assembly 104 for sorting and outputting spring plungers; the automatic loading and positioning mechanism 100 has a spring plunger positioning groove 101, so that the spring plunger 1 is vertically arranged in the spring plunger positioning groove, and the spring plunger positioning groove 101 is provided with a plurality of and is evenly arranged on the periphery of the positioning turntable 103, which is equivalent to the positioning turntable 103 having a notch on its periphery, and the positioning turntable 103 is controlled by a rotation drive unit to rotate horizontally, and the output end (for example, the front end) of the linear loading track 102 is located on the outer periphery of the positioning turntable 103 and corresponds to the spring plunger positioning groove 101; and the jacking drive assembly 104 is provided below the positioning turntable 103 to lift the spring plunger in the spring plunger positioning groove 101 upward and protrude above the positioning turntable 103. The spring plunger is a relatively regular small object. It is easy to arrange it in a true line output, for example, by using a vibrator, similar to a screw machine loader. When one of the spring plunger positioning slots 101 of the positioning turntable 103 is aligned with the output end of the linear feeding track 102, a spring plunger enters the spring plunger positioning slot 101 and changes its position as the positioning turntable 103 rotates. When the next spring plunger positioning slot 101 is aligned with the output end of the linear feeding track 102, another spring plunger enters the spring plunger positioning slot 101 and changes its position as the positioning turntable 103 rotates... and so on. Accordingly, when the spring plunger on the positioning turntable 103 rotates to the top of the jacking drive assembly 104, the jacking drive assembly 104 pushes the spring plunger upward and protrudes from the positioning turntable. The first automatic gripper unit is positioned above the disk 103 for gripping. The first automatic gripper unit performs the following actions: it moves longitudinally backward to the top of the spring plunger, then descends to clamp the spring plunger, then rises away from the positioning turntable 103, then moves longitudinally forward a short distance, and then moves transversely to the right to the detection station, and places the spring plunger in the detection positioning groove 301' of the detection station. The lifting drive assembly 104 includes a lifting cylinder 1041 and a pushing column 1042 driven up and down by the lifting cylinder 1041. The spring plunger positioning groove 101 passes through the upper and lower end surfaces of the positioning turntable 103. When the pushing column 1042 pushes the spring plunger upward, it will extend upward into the spring plunger positioning groove 101. In this embodiment, the push column 1042 is connected to an adjustment plate 1043, which is provided with a longitudinal adjustment slot 1044. The adjustment plate 1043 is detachably and adjustably connected to the top of the piston of the lifting cylinder 1041 through the longitudinal adjustment slot 1044. In addition, sensors 105 are respectively provided on the left and right sides of the positioning turntable 103 to detect when the gripper assembly of the first automatic gripper unit reaches the material picking position.

[0047] The automatic transport mechanism 200 includes a left and right lateral movement drive unit 201 (such as a linear module or a cylinder), a first automatic clamping unit 202 and a second automatic clamping unit 203; the first automatic clamping unit 202 and the second automatic clamping unit 203 both include a pair of clamping assemblies 21' that automatically open and close left and right (usually two clamping jaws 212' are installed on a clamping cylinder 211', and the opposite surfaces of the two clamping jaws 212' are designed with clamping arc surfaces to better match the outer peripheral surface of the spring plunger to form reliable clamping), a front and back longitudinal movement drive assembly 22' and an up and down lifting drive assembly 23', the front and back longitudinal movement drive assembly 22' drives the clamping jaw assembly 21' to move longitudinally forward and backward, the up and down lifting drive assembly 23' drives the clamping jaw assembly 21' to move up and down, and the up and down lifting drive assembly 23' drives the front and back longitudinal movement drive assembly 22' and the clamping jaw assembly 21' to move up and down together. The left and right lateral movement drive unit 201 drives the first automatic gripper unit 202 and the second automatic gripper unit 203 to move horizontally, so that the first automatic gripper unit 202 transfers the spring plunger on the spring plunger positioning slot 101 to the inspection station for inspection, and the second automatic gripper unit 203 removes the spring plunger that has completed inspection at the inspection station. It should be noted that the front and rear longitudinal movement drive assembly 22' and the up and down lifting drive assembly 23' mentioned in this embodiment are driven by cylinders, and the front and rear longitudinal movement drive assembly 22' drives the lateral movement seat to move horizontally, and the first automatic gripper unit 202 and the second automatic gripper unit 203 are installed on the lateral movement seat with a left and right spacing. Specifically, the up and down lifting drive assembly 23' is installed on the lateral movement seat, and the up and down lifting drive assembly 23' drives the rear longitudinal movement drive assembly 22' to move up and down, and the front and rear longitudinal movement drive assembly 22' drives the longitudinal movement seat to move forward and backward. The gripper cylinder 211' is installed on the longitudinal movement seat; in other embodiments, it is also possible to replace the cylinder drive with a motor drive. The clamping jaw assembly 21 ′ is designed as a spring clamping jaw, which can adapt to spring plungers of different diameters.

[0048] The automatic inspection mechanism 300 includes a lower mold assembly 301, a stand 302, a pressure sensor 303 (a standard pressure sensor can be used), and a servo lift drive unit 304. The lower mold assembly 301 is disposed on the front side of the stand 302. The lower mold assembly 301 includes a lower mold frame 3011 and a top plate 3012 connected to the lower mold frame 3011. The inspection positioning slot 301' is defined on the top plate, and the top plate is detachably connected to the lower mold frame. When the spring plunger 1 is placed in the inspection positioning slot 301', the flange edge (or flange) of the spring plunger 1 rests on the top plate. Therefore, the inspection positioning slot can be slightly larger than the outer diameter of the peripheral side wall of the main housing to accommodate spring plungers within a certain size range. For products with large outer diameter differences, the inspection positioning slot can also be changed by replacing the top plate 3012 of the lower mold base. The servo lift drive unit 304 is a servo electric cylinder, which is installed on the stand 302. The pressure sensor 303 is connected to the output end of the servo electric cylinder. The servo lift drive unit 304 drives the pressure sensor 303 to move up and down. It can also be understood that the servo lift drive unit drives the detection head to move up and down, and the pressure sensor is set on the detection head. Figure 12 and Figure 13 As shown, the servo lifting drive unit 304 drives the pressure sensor 303 to move downward to a first height, that is, the pressure sensor contacts the floating head of the spring plunger, stops descending, and converts the height dimension (because the upper end surface of the detection positioning groove, that is, the height of the placement positioning surface of the spring plunger is known and determined, the distance that the servo lifting drive unit controls the downward displacement of the pressure sensor can be calculated, so it is easy to calculate the height of the spring plunger, which also refers to the highest value of the floating head protrusion, in the control system), the PLC connected to the control system automatically records the size data, and then the servo lifting drive unit drives the pressure sensor to continue to move downward to a second height (the second height is controlled by the control unit). System setting adjustment), this second height refers to the descent to the limit position of the floating head, and the spring reaction force inside the spring plunger is transmitted to the pressure sensor to test the spring torque. At the same time, the control system (generally recorded by the PLC connected to the control system) automatically records the torque data, determines the qualified products and defective products and forms a test history record table, and the table data can be exported by USB; preferably, the torque data automatically recorded by the control system, as well as the data for determining qualified products and defective products, all form a test history record table, and the test history record table can be presented on a display screen connected to the control system, and / or the test history record table can be sent remotely or exported by a data interface.

[0049] The qualified product area 401 and the defective product area 402 are located to the right of the automatic inspection mechanism, and are arranged side by side in the longitudinal direction. After the second automatic gripper unit 203 removes the spring plunger that has completed inspection from the inspection station, the forward and backward longitudinal movement drive assembly drives the gripper assembly to move forward and backward to place the spring plunger in the qualified product area or the defective product area, respectively. The automatic loading and positioning mechanism 100, the inspection station, and the qualified product area (and the defective product area) are arranged in sequence from left to right, with the automatic transport mechanism 200 connected between the automatic loading and positioning mechanism 100, the inspection station, and the qualified product area (and the defective product area).

[0050] And, provide a detection method, combined with Figure 14 and Figure 15 As shown, the test is performed using the fully automatic spring plunger height and torque testing equipment described above, including the following steps:

[0051] Step 1: vertically place the spring plunger 1 in the plunger positioning groove 101 of the automatic loading and positioning mechanism 100 with the floating head facing upwards; this is specifically accomplished by the automatic loading and positioning mechanism 100;

[0052] Step 2: The automatic transport mechanism 200 automatically transfers the spring plunger on the spring plunger positioning groove 101 to the detection positioning groove 301'; specifically, the automatic transport mechanism 200 completes the process;

[0053] Step 3: The servo lift drive unit 304 drives the pressure sensor 303 downward to a first height, i.e., the pressure sensor 303 contacts the floating head of the spring plunger, stops descending, and the height dimension is converted. Subsequently, the servo lift drive unit 304 drives the pressure sensor 303 to continue to move downward to a second height (i.e., the floating head pressure limit position). The spring (e.g., compression spring) inside the spring plunger reacts to the pressure sensor 303 to test the spring torque. At the same time, the control system 600 automatically records the torque data and determines whether the product is qualified or defective. This is specifically accomplished by the automatic detection mechanism.

[0054] Step 4: The automatic transport mechanism automatically sorts the tested spring plungers into qualified products and defective products and places them in the corresponding qualified product area 401 and defective product area 402. This is specifically accomplished by the automatic transport mechanism.

[0055] In other embodiments, the detection of spring torque is not limited to the lowering limit position of the floating head; more than two heights can be set by the control system, for example: a first torque height and a second torque height. After the size is detected, the servo lifting drive unit drives the pressure sensor to continue to move downward to the first torque height, and the spring reaction force inside the spring plunger is sent to the pressure sensor to test the spring torque at the first torque height. At the same time, the control system automatically records the torque data at the current height. Subsequently, it continues to descend to the second torque height, and the spring reaction force inside the spring plunger is sent to the pressure sensor to test the spring torque at the first torque height. At the same time, the control system automatically records the torque data at the current height. In this way, the load of the floating head at different heights can be detected. Since the present invention uses a pressure sensor in conjunction with a servo electric cylinder to achieve test height and torque size, it is theoretically possible to test torque values ​​at different heights. According to the application scenario requirements of the spring plunger product, the corresponding load of the floating head under different pressure conditions can be detected as needed.

[0056] The illustrated elastic plunger 1 is merely an example of a specific product shape and does not limit the applicable spring plunger products of the spring plunger positioning and automatic handling mechanism of the present invention. Typically, the spring plunger 1 (also known as a positioning bead, spring wave bead, contact bead, or ball-head plunger) comprises a main housing 1a, a compression spring 1b, and a floating head 1c (typically a sphere or stepped cylinder). The compression spring 1b is disposed within the main housing 1a, with the lower end of the floating head 1c pressed against the top of the compression spring 1b, and the upper end of the floating head 1c protruding from the upper end of the main housing 1a. The inspection method of this embodiment is primarily applicable to spring plungers with flanges, namely, flanges 1d formed on the upper periphery of the main housing 1a, extending outwardly from the outer peripheral side of the main housing 1a. Thus, when the spring plunger 1 is placed within the inspection positioning slot 301', the flange 1d rests on the lower mold assembly 301.

[0057] The design focus of this utility model is:

[0058] 1. By configuring the automatic transport mechanism 200, the automatic detection mechanism 300, and the control system 600, the spring plunger height and torque can be automatically detected on the same automatic detection mechanism 300, saving labor and effectively improving detection efficiency, detection accuracy, and stability.

[0059] Second, through the structural arrangement of the automatic loading and positioning mechanism 100 and the automatic transport mechanism 200, the spring plunger is vertically arranged in the spring plunger positioning groove on the automatic loading and positioning mechanism 100, and the first automatic gripper unit 202 is used to transfer the spring plunger on the spring plunger positioning groove 101 to the inspection station for inspection, and the second automatic gripper unit 203 removes the spring plunger that has completed inspection at the inspection station, thereby realizing automatic loading and unloading. In addition, the gripper-type automatic transport mechanism 200 can adapt to spring plungers of different sizes and diameters.

[0060] 3. The pressure sensor and servo electric cylinder cooperate to realize the height dimension test and torque size test of the spring plunger. The PLC and touch screen adjust the test specifications, record the test data and realize the fully automated test of the action logic. It has a high degree of intelligence, saves labor, and can better meet the testing needs of different products.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fully automatic spring plunger height and torque detection device, characterized in that: It includes an automatic transport mechanism, an automatic detection mechanism and a control system; the control system is connected to the automatic transport mechanism and the automatic detection mechanism respectively; The automatic detection mechanism includes a lower mold assembly, a pressure sensor, and a servo lifting drive unit; the lower mold assembly is provided with a detection positioning groove with an open upper end, the pressure sensor is located above the detection positioning groove, and the servo lifting drive unit drives the pressure sensor to move up and down; The control system includes a PLC and a touch screen connected to the PLC, the PLC is also connected to a communication interface, and the touch screen is used to set the torque detection height so that the servo lifting drive unit drives the pressure sensor to move down to the set torque detection height; The automatic transport mechanism includes an automatic gripper unit, which transfers the spring plunger to the detection positioning groove and separates the spring plungers after detection into the corresponding qualified product area and defective product area according to the classification.

2. The fully automatic spring plunger height and torque detection device according to claim 1, characterized in that: The lower mold assembly includes a lower mold frame and a top plate connected to the lower mold frame. The detection positioning groove is opened on the top plate. The top surface of the top plate corresponds to the outer peripheral area of ​​the detection positioning groove as a spring plunger placement limit surface.

3. The fully automatic spring plunger height and torque detection device according to claim 2, characterized in that: The top plate is detachably connected to the lower mold frame.

4. The fully automatic spring plunger height and torque detection device according to claim 1, characterized in that: The servo lifting drive unit is a servo electric cylinder, an output end of the servo electric cylinder is provided with a detection head facing downward, and the pressure sensor is provided on the detection head.

5. The fully automatic spring plunger height and torque detection device according to claim 1, 2 or 3, characterized in that: The upper end of the detection positioning groove is provided with an upwardly expanding guide opening.

6. The fully automatic spring plunger height and torque detection device according to claim 1, characterized in that: The automatic gripper unit includes a first automatic gripper unit and a second automatic gripper unit; the automatic conveying mechanism also includes a left and right lateral movement drive unit; the first automatic gripper unit and the second automatic gripper unit both include a gripper assembly that automatically opens and closes left and right, a front and rear longitudinal movement drive assembly, and an up and down lifting drive assembly, the front and rear longitudinal movement drive assembly drives the gripper assembly to move longitudinally forward and backward, and the up and down lifting drive assembly drives the front and rear longitudinal movement drive assembly and the gripper assembly to move up and down together; the left and right lateral movement drive unit drives the first automatic gripper unit and the second automatic gripper unit to move horizontally together, so that the first automatic gripper unit transfers the spring plunger into the detection positioning groove, and the second automatic gripper unit separates the spring columns after inspection into qualified products and defective products and discharges them into the corresponding qualified product area and defective product area.

7. The fully automatic spring plunger height and torque detection device according to claim 6, characterized in that: The clamping jaw assembly is a spring clamping jaw that can adapt to spring plungers of different sizes and diameters.

8. The fully automatic spring plunger height and torque detection device according to claim 6, characterized in that: An automatic loading and positioning mechanism is provided on the left side of the automatic detection mechanism; the automatic loading and positioning mechanism includes a linear loading track, a positioning turntable and a jacking drive assembly; a plurality of spring plunger positioning grooves are arranged at intervals on the periphery of the positioning turntable, the spring plunger positioning grooves pass through the upper and lower ends of the positioning turntable, and pass through the outer peripheral side of the positioning turntable, the positioning turntable is controlled by a rotation drive unit to rotate horizontally, the output end of the linear loading track corresponds to the spring plunger positioning groove; and the jacking drive assembly is provided below the positioning turntable to lift the spring plunger in the spring plunger positioning groove upward and protrude above the positioning turntable.

9. The fully automatic spring plunger height and torque detection device according to claim 8, characterized in that: The jacking drive assembly includes a jacking cylinder and a pushing column driven up and down by the jacking cylinder. The spring plunger positioning groove passes through the upper and lower end surfaces of the positioning turntable. When the pushing column pushes the spring plunger upward, it will extend upward into the spring plunger positioning groove.

10. The fully automatic spring plunger height and torque detection device according to claim 8, characterized in that: It also includes a frame; the frame includes a lower frame and an upper frame, the automatic loading and positioning mechanism, the automatic detection mechanism, and the automatic conveying mechanism are arranged on the lower frame, the upper frame is connected to the top of the lower frame to cover the automatic loading and positioning mechanism, the automatic conveying mechanism, and the automatic detection mechanism, and the control system is set on the upper frame.

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