Drawing force detection mechanism, device and equipment

Abstract

The drawing force detection mechanism comprises the drawing force detection device, a jig box, a transfer platform, a grabbing mechanism and a clamping mechanism, a containing groove is formed in a base, a first balancing weight and a second balancing weight are placed in the containing groove, a step through hole is formed in the second balancing weight, and the first balancing weight and the second balancing weight are arranged in the step through hole. The first balancing weight is of a step column structure, the large end of the first balancing weight is located in a large hole of the step through hole, the small end of the first balancing weight penetrates out of a small hole of the step through hole, a drawing needle is installed in the center of the first balancing weight, the diameter of the large end of the first balancing weight is larger than that of the small hole of the step through hole, and a sliding groove is formed in the base in the front-back direction. The base is in sliding fit in the sliding groove, the telescopic end of the telescopic air cylinder is connected with the base, a containing groove is further formed in the base, and the bottom of the proximity switch is located in the containing groove. The beneficial effects of the utility model are that the drawing force of the contact element can be detected, so that the drawing force of the contact element is in a reasonable range.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection of contact, in particular to drawing force detection mechanism, detection device and detection equipment. BACKGROUND

[0002] The existing plug-in force testing machine on the market is divided into two categories:

[0003] One is a semi-automatic form, mainly through manual one by one product to the fixture, manual calibration of the concentricity of the pin and the corresponding product and product test height, and then through the instrument to automatically test, manual classification of products according to test data results. This technology has the disadvantages of slow production efficiency, high labor cost.

[0004] The second is a fully automatic form, mainly through customizing a special vibration disc to automatically feed products, and automatically testing the plug-in force through the weight extraction. This technology has the disadvantages of single product, unstable test results, more modules required for changing product models, complex manual replacement, and the need for corresponding vibration discs for different products, which is high in cost. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a drawing force detection mechanism, a detection device and a detection equipment.

[0006] The utility model discloses the purpose through the following technical scheme: drawing force detection mechanism, including the base, the base is opened The accommodating groove is placed with the first counterweight and the second counterweight, the second counterweight is opened The stepped through hole is set up, the first counterweight is set up as the stepped column structure, and the big end of the first counterweight is located in the big hole of the stepped through hole, the small end of the first counterweight is worn out from the small hole of the stepped through hole, and the center of the first counterweight is installed with the drawing needle, and the diameter of the big end of the first counterweight is greater than the diameter of the small hole of the stepped through hole.

[0007] Optionally, the bottom of the accommodating groove is provided with a proximity switch for detecting the positions of the first counterweight and the second counterweight.

[0008] Optionally, the left and right sides of the base are provided with supporting blocks, and a photosensitive sensor is installed on the supporting blocks.

[0009] Optionally, the base is further provided with a limiting piece, and the top of the limiting piece is provided with a limiting part pointing to the center line of the first counterweight.

[0010] Optionally, the base is further provided with a centering mechanism for centering the first counterweight.

[0011] Optionally, the centering mechanism comprises a double-end clamping cylinder, the base is provided with a cylinder seat, the double-end clamping cylinder is installed on the cylinder seat, and the inner side of the clamping head of the double-end clamping cylinder is provided with a V-shaped notch.

[0012] The drawing force detection device comprises a drawing force detection mechanism, a base and a telescopic cylinder, the base and the telescopic cylinder are both installed on a detection platform, the base is provided with a sliding groove in the front-rear direction, a base is slidingly fitted in the sliding groove, the telescopic end of the telescopic cylinder is connected with the base and drives the base to move forward and backward relative to the base, the base is further provided with a containing groove, and the bottom of the proximity switch is located in the containing groove.

[0013] Optionally, the base is further provided with a pressure detection mechanism, the pressure detection mechanism is located on the outer side of the drawing force detection mechanism, and the pressure detection mechanism comprises a pressure sensor and a thimble.

[0014] The drawing force detection device comprises a drawing force detection device, a jig box and a transfer platform are installed on the detection platform, the transfer platform is located on one side of the jig box, the detection platform is further provided with a grabbing mechanism for grabbing products from the jig box and placing the products on the transfer platform, and the detection platform is further provided with a clamping mechanism for clamping products from the transfer platform and placing the products in the drawing force detection mechanism for detection.

[0015] Optionally, the transfer platform comprises a rotary cylinder, the rotary end of the rotary cylinder is provided with a rotary platform, and the rotary platform is provided with a tool for placing products.

[0016] The drawing force detection device of the utility model can detect the drawing force of the contact piece, so that the drawing force of the contact piece is within a reasonable range. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Fig. 1 is a structural schematic view of a drawing force detection device;

[0018] Figure 2 Fig. 1 is a structural schematic view of a drawing force detection device;

[0019] Figure 3 Fig. 1 is a structural schematic view of a drawing force detection device;

[0020] In the figure, 100-pulling force detection device, 200-clamping mechanism, 300-transit platform, 400-jig box, 500-grabbing mechanism, 101-base, 102-telescopic cylinder, 103-limiting sliding groove, 104-base, 105-pulling force detection mechanism, 106-pressure sensor, 107-thimble, 108-first counterweight, 109-second counterweight, 110-pulling needle, 111-limiting piece, 112-double-head clamping cylinder, 113-containing groove, 114-proximity switch, 115-supporting block, 116-photosensitive sensor, 117-clamping head. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0024] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1 As shown, the pull-out force testing equipment includes a pull-out force testing device 100. In this embodiment, the pull-out force testing device 100 includes a pull-out force testing mechanism 105, a base 101, and a telescopic cylinder 102. Both the base 101 and the telescopic cylinder 102 are mounted on the testing platform. A sliding groove 103 is provided on the base 101 along the front-back direction. A base 104 is slidably fitted in the sliding groove 103. The telescopic end of the telescopic cylinder 102 is connected to the base 104 and drives the base 104 to move back and forth relative to the base 101. A receiving groove 113 is also installed on the base 104. The bottom of the proximity switch 114 is located within the receiving groove 113. A fixture box 400 and a transfer platform 300 are mounted on the detection platform. The transfer platform 300 is located on one side of the fixture box 400. The detection platform is also equipped with a gripping mechanism 500 for picking up products from the fixture box 400 and placing them into the transfer platform 300. The detection platform is also equipped with a clamping mechanism 200 for holding products from the transfer platform 300 and placing them into a pull-out force detection mechanism 105 for testing. In this embodiment, the gripping mechanism 500 is prior art, and it includes a stand with a spider mounted on it. Spider-shaped mechanical grippers are existing technology, so their specific structures and working principles will not be described in detail. The clamping mechanism 200 is also existing technology, comprising an X-axis linear motion component and a Z-axis linear motion component. A clamping manipulator is mounted on the Z-axis linear motion component; this clamping manipulator is also existing technology. In this embodiment, the transfer platform 300 includes a rotary cylinder, with a rotary platform at the rotating end of the cylinder. A fixture for placing products is mounted on the rotary platform, which is a horizontal bar with product-placement fixtures at both ends. The middle part of the crossbar is connected to the rotating end of the rotary cylinder. In this embodiment, the two ends of the crossbar correspond to two workstations. One workstation is where the spider-shaped mechanical gripper grabs the product and places it on the fixture. At this time, the other workstation is located below the clamping robot. The clamping robot clamps the product and removes it from the fixture at that workstation. Therefore, in use, the spider-shaped mechanical gripper takes the product out of the jig box 400 and places it on the fixture at one end of the crossbar, while the clamping robot grabs the product from the other workstation and places it on the pull-out force detection device 100 for detection.

[0028] In the embodiment, as shown in Figure 2 and Figure 3 The drawing force detection mechanism 105 comprises a base 104, the base 104 is provided with a containing groove, a first counterweight 108 and a second counterweight 109 are placed in the containing groove, the second counterweight 109 is provided with a stepped through hole, the first counterweight 108 is provided as a stepped column structure, the large end of the first counterweight 108 is located in the large hole of the stepped through hole, the small end of the first counterweight 108 is out of the small hole of the stepped through hole, the first counterweight 108 is provided with a drawing needle 110 at the center, the diameter of the large end of the first counterweight 108 is larger than the diameter of the small hole of the stepped through hole, the clamping mechanical hand clamps the product and moves above the first counterweight 108, then the clamping mechanical hand goes down, so that the drawing needle 110 is inserted into the product, then the clamping mechanical hand goes up, because the drawing needle 110 is inserted into the product, so that the clamping force between the drawing needle 110 and the product is generated, and the size of the clamping force indicates the size of the drawing force, when the weight of the first counterweight 108 is less than the clamping force, the first counterweight 108 can be lifted during the upward movement of the clamping mechanical hand, otherwise, when the weight of the first counterweight 108 is greater than the clamping force, the first counterweight 108 cannot be lifted during the upward movement of the clamping mechanical hand, when the first counterweight 108 is lifted, if the sum of the weights of the first counterweight 108 and the second counterweight 109 is less than the clamping force, the second counterweight 109 can also be lifted during the upward movement of the clamping mechanical hand, otherwise, the second counterweight 109 cannot be lifted during the upward movement of the clamping mechanical hand, therefore, the weights of the first counterweight 108 and the second counterweight 109 can be reasonably selected according to the test interval of the product drawing force, preferably, the first counterweight 108 and the second counterweight 109 are both selected as weights, so that they have standard weights, when selected, the weight of the first counterweight 108 is the lower limit of the drawing force test interval, and the sum of the weights of the first counterweight 108 and the second counterweight 109 is the upper limit of the drawing force test interval, so that the positions of the first counterweight 108 and the second counterweight 109 can be observed, and whether the product drawing force meets the requirements can be tested.

[0029] In the embodiment, as shown in Figure 2 and Figure 3The bottom of the accommodating groove is provided with a proximity switch 114 for detecting the positions of the first counterweight 108 and the second counterweight 109. The proximity switch 114 is a commercially available product, and its structure and principle are prior art. In the embodiment, when the first counterweight 108 is pulled up, the proximity switch 114 can give a signal that the first counterweight 108 is pulled up. Similarly, when the second counterweight 109 is pulled up, the proximity switch 114 can give a signal that the second counterweight 109 is pulled up. Through the signal feedback, it can be determined whether the pulling force of the product is within the range.

[0030] In the embodiment, as shown in Figure 2 and Figure 3 The base 104 is provided with support blocks 115 on the left and right sides. Preferably, the support blocks 115 are provided on the left and right sides of the base 101. The support blocks 115 are provided with photosensitive sensors 116. On the left projection surface, the top end of the first counterweight 108 is located below the light source of the photosensitive sensor 116, and the distance between the top end of the first counterweight 108 and the light source of the photosensitive sensor 116 is less than the distance between the stepped surface of the first counterweight 108 and the stepped surface of the stepped through hole. Therefore, when the first counterweight 108 is pulled up and interferes with the light of the photosensitive sensor 116, the signal feedback of the photosensitive sensor 116 can determine whether the pulling force of the product exceeds the lower limit of the pulling force. Then, it is used in cooperation with the proximity switch 114, so that it can automatically determine whether the pulling force of the product is qualified.

[0031] In the embodiment, as shown in Figure 2 and Figure 3 The base 104 is further provided with a limiting piece 111. The top of the limiting piece 111 is provided with a limiting portion pointing to the center line of the first counterweight 108. On the left projection surface, the top outer edge of the second counterweight 109 is located below the limiting portion. When the pulling force of the product exceeds the specified requirement, the first counterweight 108 and the second counterweight 109 will be lifted together. At this time, through the limiting piece 111, when the top outer edge of the second counterweight 109 contacts the limiting portion, the second counterweight 109 can be limited to continue upward, and the pulling needle 110 is separated from the product, and then the pulling force detection of the next product is carried out.

[0032] In the embodiment, as shown in Figure 2 and Figure 3When the first counterweight 108 is pulled up and the pulling needle 110 is separated from the product, the first counterweight 108 falls under the action of gravity, so that the center of the first counterweight 108 can be deviated, and thus the detection of the next product is affected, therefore, a centering mechanism for centering the first counterweight 108 is further installed on the base 104, further, the centering mechanism comprises a double-head clamping cylinder 112, a cylinder seat is arranged on the base 104, the double-head clamping cylinder 112 is installed on the cylinder seat, a V-shaped notch is arranged on the inner side of a clamping head 117 of the double-head clamping cylinder 112, when the first counterweight 108 falls back, the double-head clamping cylinder 112 works, the two clamping heads 117 clamp the small end of the first counterweight 108, so as to reset the first counterweight 108, and then the double-head clamping cylinder 112 is reset, and the detection of the next product is started.

[0033] In the embodiment, when the product is detected, the pressure of the product during insertion also needs to be detected, as shown in Figure 2 and Figure 3 Therefore, a pressure detection mechanism is further installed on the base 101, the pressure detection mechanism is located outside the pulling force detection mechanism 105, the pressure detection mechanism comprises a pressure sensor 106 and a top needle 107, the top needle 107 is installed on the pressure detection mechanism, so that the base 101 has a pressure detection station and a pulling force detection station, the two stations are respectively brought below the clamping mechanical arm by the telescopic cylinder 102, when the pressure is detected, the clamping mechanical arm drives the product to move downward, when the top needle 107 is inserted into the product, the pressure sensor 106 can detect the pressure of the top needle 107, so that the pressure value can be fed back, and then the pulling force of the product is detected, so that the insertion and pulling force of the product can be detected.

[0034] In the embodiment, a good product box and a substandard product box are arranged on the detection platform, after detection, when the product is a good product, the product is put into the good product box, and when the product is a substandard product, the product is put into the substandard product box.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A tension detecting mechanism characterized by comprising: The base is provided with a containing groove, a first counterweight and a second counterweight are placed in the containing groove, the second counterweight is provided with a stepped through hole, the first counterweight is provided as a stepped column structure, the large end of the first counterweight is located in the large hole of the stepped through hole, the small end of the first counterweight is out of the small hole of the stepped through hole, a pulling needle is installed at the center of the first counterweight, and the diameter of the large end of the first counterweight is larger than the diameter of the small hole of the stepped through hole.

2. The drawing force detecting mechanism according to claim 1, characterized by: A proximity switch is installed at the bottom of the containing groove to detect the positions of the first counterweight and the second counterweight.

3. The drawing force detecting mechanism according to claim 2, characterized by: Support blocks are arranged on the left and right sides of the base, a photosensitive sensor is installed on the support blocks, the top end of the first counterweight is located below the light emitting source of the photosensitive sensor on the left projection surface, and the distance between the top end of the first counterweight and the light emitting source of the photosensitive sensor is smaller than the distance between the stepped surface of the first counterweight and the stepped surface of the stepped through hole.

4. The drawing force detecting mechanism according to claim 3, characterized by: A limiting piece is further arranged on the base, the top of the limiting piece is provided with a limiting part pointing to the center line of the first counterweight, and the top outer edge of the second counterweight is located below the limiting part on the left projection surface.

5. The drawing force detecting mechanism according to any one of claims 1 to 4, characterized by: A centering mechanism is further installed on the base to center the first counterweight.

6. The drawing force detecting mechanism according to claim 5, characterized by: The centering mechanism comprises a double-head clamping air cylinder, an air cylinder seat is arranged on the base, the double-head clamping air cylinder is installed on the air cylinder seat, and a V-shaped notch is arranged on the inner side of the clamping head of the double-head clamping air cylinder.

7. A pulling force detection device characterized by: The drawing force detection mechanism comprises the base and the telescopic air cylinder, the base and the telescopic air cylinder are both installed on the detection platform, a sliding groove is arranged on the base in the front-rear direction, the base is slidingly fitted in the sliding groove, the telescopic end of the telescopic air cylinder is connected with the base to drive the base to move forward and backward relative to the base, and a containing groove is further installed on the base, and the bottom of the proximity switch is located in the containing groove.

8. The drawing force detecting apparatus according to claim 7, characterized by: A pressure detection mechanism is further installed on the base, the pressure detection mechanism is located on the outer side of the drawing force detection mechanism, and the pressure detection mechanism comprises a pressure sensor and a ejector pin.

9. A pulling force detection apparatus characterized by comprising: The drawing force detection device comprises the base, the telescopic air cylinder, the pressure detection mechanism, the drawing force detection mechanism, the jig box, the transfer platform, the grabbing mechanism and the clamping mechanism.

10. The drawing force detection apparatus according to claim 9, characterized by: The transfer platform comprises a rotary air cylinder, a rotary platform is arranged on the rotary end of the rotary air cylinder, and a tool for placing products is arranged on the rotary platform.

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