A resistance test marking apparatus

Abstract

The utility model provides a kind of resistance test marking equipment, it includes: turntable and the test component being set around turntable, laser engraving head, blanking ladder.The turntable includes gearbox, material loading platform, protective cylinder and multiple fixtures, protective cylinder is located at the center position of material loading platform, and multiple fixtures are set around protective cylinder;Fixture includes cushion block, floating stop block and guide sheet metal, profiling cavity and chute are opened in cushion block, the opening of profiling cavity is towards the side away from the center of turntable, profiling cavity is used to accommodate resistance to be measured, and make the measured part on resistance to be measured towards opening;Guide sheet metal is set on gearbox, and guide sheet metal is located below test component, and floating stop block is slidably arranged in chute.The opening direction of profiling cavity is away from the center of turntable, so that the measured surface on resistance to be measured faces outward, to facilitate test component and laser engraving head to carry out testing and marking operation, integrate testing and marking station into the same equipment, which is beneficial to improve resistance production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resistor production, and in particular to a resistor testing and marking device. Background Technology

[0002] like Figure 1 The irregularly shaped resistor 20 shown is installed in the circuit as a shunt. It includes a body 21 and current test pins 22 and voltage test pins 23 disposed on the body. The current test pins 22 and voltage test pins 23 have different sizes, and the outer contour of the body 21 is irregular. After the resistor is assembled, the resistance value needs to be tested and a mark needs to be made on the body 21.

[0003] However, because the outer contour of the body 21 is irregular and there are two different sizes of pins on the body 21, the assembled resistor is irregular in shape, which makes it difficult to clamp the resistor after assembly. When the resistance value is tested, the probe needs to be pressed on the test point and the probe applies force to the product when it contacts the product under test. Therefore, the test process requires the fixture to provide sufficient support to prevent the product from shifting. On the other hand, when marking on the body 21, it is necessary to avoid the clamping parts on the fixture from blocking it. This means that the resistance value test and marking operation need to be carried out on two separate devices.

[0004] Therefore, how to solve the clamping problem of irregularly shaped resistors and integrate the resistance value testing and marking stations into the same equipment is a problem that needs to be solved. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a resistance testing and marking device that solves the problem of clamping irregularly shaped resistors, integrates resistance value testing and marking stations into the same device, and improves the production efficiency of resistor products.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] A resistance testing and marking device includes: a turntable and a testing component arranged around the turntable, a laser marking head, and a feeding ladder;

[0008] The turntable includes a gearbox, a loading platform, a protective cylinder, and multiple fixtures. The protective cylinder is located at the center of the loading platform, and the multiple fixtures are arranged around the protective cylinder.

[0009] The fixture includes a pad, a floating stop, and a guide sheet metal. The pad has a contour cavity and a groove. The opening of the contour cavity faces away from the center of the turntable. The contour cavity is used to accommodate the resistor to be tested and to make the part of the resistor to be tested face the opening.

[0010] The guide sheet metal is disposed on the gearbox and is located below the test component. The floating stop is slidably disposed in the groove. The guide sheet metal is used to drive the floating stop to extend into the contour cavity.

[0011] In one embodiment, the protective cylinder is provided with a plurality of blocking surfaces facing the fixture, such that the fixture is located between the laser engraving head and the blocking surfaces.

[0012] In one embodiment, the floating stop includes a blocking portion and a contact portion, the width of the contact portion being smaller than the width of the blocking portion, the contact portion penetrating the loading platform, the contact portion being used to abut against the guide sheet metal, and the blocking portion being used to fit against the resistor to be tested to provide support.

[0013] In one embodiment, the blocking portion is provided with a chamfer.

[0014] In one embodiment, the width of the blocking portion is smaller than the diameter of the opening, and there is a gap between the inner wall of the contoured cavity and the outer wall of the blocking portion.

[0015] In one embodiment, the guide sheet metal is provided with an inclined surface and a retaining surface, the inclined surface being used to guide the floating stop block to rise, and the retaining surface being used to support the floating stop block.

[0016] In one embodiment, the protective cylinder is provided with a plurality of blocking surfaces, the number of which is the same as that of the fixture, and the blocking surfaces face the fixture.

[0017] In one embodiment, the unloading ladder includes a robotic arm and a slide.

[0018] In one embodiment, the test assembly includes a base, a slide, and a probe, the slide being used to move the probe closer to or away from the fixture.

[0019] In one embodiment, the slide is provided with an L-shaped bracket, and the probe is disposed on the L-shaped bracket.

[0020] The above-mentioned resistance testing and marking equipment has the following beneficial effects:

[0021] 1. The opening direction of the contour cavity is away from the center of the turntable, so that the test surface on the resistor to be tested faces outward, which facilitates the testing components and laser marking head to perform testing and marking operations. Integrating the testing and marking stations into the same equipment is beneficial to improving resistor production efficiency.

[0022] 2. The floating stop only extends to hold the resistor under test when the fixture is moved to the position of the test component, providing support to prevent the probe from pushing and causing the resistor position to shift. After leaving the test component, it sinks down to re-expose the test surface, making room for laser marking. No secondary clamping is required, making the product processing process continuous. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of an irregularly shaped resistor;

[0025] Figure 2 A schematic diagram of a resistance testing and marking device;

[0026] Figure 3 This is a schematic diagram showing the connection between the turntable and the unloading elevator.

[0027] Figure 4 This is a schematic diagram showing the interaction between the turntable and the test components;

[0028] Figure 5 This is a schematic diagram of the fixture structure;

[0029] Figure 6 This diagram shows the fit between the fixture and the probe during resistance testing.

[0030] Figure 7 This is a schematic diagram showing how the floating stop is lifted during the relative movement of the sheet metal guided by the fixture.

[0031] Reference numerals: 10, resistance testing and marking equipment; 100, turntable; 110, gearbox; 120, loading platform; 130, protective cylinder; 131, blocking surface; 200, testing component; 210, base; 220, slide; 221, L-shaped bracket; 230, probe; 300, laser marking head; 400, unloading ladder; 410, robotic arm; 420, slide; 500, fixture; 510, pad; 511, contour cavity; 512, chute; 520, floating stop; 521, blocking part; 522, contact part; 530, guide sheet metal; 531, inclined surface; 532, holding surface. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figure 2 This utility model provides a resistance testing and marking device 10, which is used to test the resistance value of resistors and mark the surface of resistors. It includes: a turntable 100 and a test component 200, a laser marking head 300, and a feeding ladder 400 arranged around the turntable 100.

[0036] Please see Figure 3 The turntable 100 includes a gearbox 110, a loading platform 120, a protective cylinder 130, and multiple fixtures 500. The protective cylinder 130 is located at the center of the loading platform 120, and the multiple fixtures 500 are arranged around the protective cylinder 130. The gearbox 110 is used to drive the loading platform 120 to rotate, so that each fixture 500 on it passes sequentially through the testing component 200, the laser marking head 300, and the unloading ladder 400. Among them, the testing component 200 is used to test the resistance value of the resistor 20 on the fixture 500; the unloading ladder 400 is the unloading position of the resistor 20.

[0037] Please see Figure 4 and Figure 5The fixture 500 includes a pad 510, a floating stop 520, and a guide sheet metal 530. The pad 510 has a contour cavity 511 and a groove 512. The opening of the contour cavity 511 faces away from the center of the turntable 100. The contour cavity 511 is used to accommodate the resistor to be tested and to make the part to be tested on the resistor 20 face the opening. The resistor 20 to be tested "lies" in the contour cavity 511, so that the part to be tested on the body 21 faces away from the center of the turntable 100, so that the part to be tested on the body 21 can directly face the test assembly 200 or the laser marking head 300.

[0038] Please see Figure 4 and Figure 7 The guide sheet metal 530 is mounted on the gearbox 110 and is located below the test assembly 200. The floating stop 520 is slidably mounted in the groove 512. The guide sheet metal 530 is used to drive the floating stop 520 into the contour cavity 511. In the initial state, the floating stop 520 is submerged in the groove 512. Only when the fixture 500 is moved to the position of the test assembly 200 does the floating stop 520 come into contact with the guide sheet metal 530 and be lifted by the guide sheet metal 530. At this time, the floating stop 520 extends into the contour cavity 511. The floating stop 520 and the contour cavity 511 cooperate to clamp the resistor 20 to be tested, which can prevent the resistor 20 from tilting under force during testing. After the fixture 500 is removed, the floating stop 520 loses the support of the guide sheet metal 530 and falls back down, exposing the part to be tested on the body 21 again, making room for the laser marking head 300 to perform laser marking.

[0039] Please see Figure 2 and Figure 7 The process of resistance value detection and marking of resistor 20 by resistance testing and marking equipment 10 is as follows:

[0040] The resistor 20 to be tested is placed in the fixture 500. The gearbox 110 is started and the material carrier 120 is driven to rotate intermittently. The fixture 500 carrying the resistor 20 is first moved to the position of the test component 200. The sheet metal 530 is guided to contact the floating stop 520 on the fixture 500 and the floating stop 520 is extended into the contour cavity 511. The floating stop 520 and the contour cavity 511 cooperate to clamp the resistor 20. The test component 200 contacts the part to be tested on the body 21 to detect the resistance value of the resistor 20.

[0041] The resistor 20, having completed the resistance value test, moves with the fixture 500 to the location of the laser marking head 300. At this time, the guide sheet metal 530 separates from the floating stop 520. Under the action of gravity, the floating stop 520 slides down and re-submerges into the slide groove 512. The surface of the body 21 is exposed within the irradiation range of the laser marking head 300, and the laser marking head 300 performs the marking operation. The resistor 20, having completed the marking operation, is transferred to the unloading ladder 400 for unloading.

[0042] Please see Figure 7 The floating stop 520 includes a blocking part 521 and a contact part 522. The width of the contact part 522 is smaller than the width of the blocking part 521, so that the cross-section of the floating stop 520 is wider at the top and narrower at the bottom, preventing the floating stop 520 from falling directly. The contact part 522 penetrates through the loading table 120, so that when the fixture 500 is moved to the position of the test assembly 200, the contact part 522 will contact the guide sheet metal 530. During this process, the floating stop 520 is lifted up, and the blocking part 521 on it is used to fit against the resistor 20 to provide support.

[0043] Preferably, the width of the blocking portion 521 is smaller than the diameter of the opening, and there is a gap between the inner wall of the contour cavity 511 and the outer wall of the blocking portion 521, providing space for the test assembly 200 to pass through.

[0044] Please see Figure 7 Furthermore, the guide sheet metal 530 is provided with an inclined surface 531 and a retaining surface 532. The inclined surface 531 is used to guide the floating stop 520 to rise, and the retaining surface 532 is used to support the floating stop 520.

[0045] The above-mentioned resistance testing and marking equipment 10 has the following beneficial effects:

[0046] 1. The opening direction of the contour cavity 511 is away from the center of the turntable 100, so that the test surface on the resistor to be tested faces outward, so that the test component 200 and the laser marking head 300 can perform testing and marking operations. Integrating the testing and marking stations into the same equipment is beneficial to improving resistor production efficiency.

[0047] 2. The floating stop 520 extends to block the resistor under test only when the fixture 500 is moved to the position of the test component 200, providing support to prevent the probe 230 from pushing and causing the resistor position to shift. After leaving the test component 200, it sinks down to re-expose the test surface, making room for laser marking without the need for secondary clamping, thus making the product processing process continuous.

[0048] Please see Figure 2 and Figure 3 In one embodiment, the protective cylinder 130 is provided with multiple blocking surfaces 131, which face the fixture 500, so that the fixture 500 is located between the laser marking head 300 and the blocking surfaces 131. The blocking surfaces 131 can block the laser emitted by the laser marking head 300, preventing the laser from irradiating non-marking positions during the marking process and avoiding damage to the operator and other components on the equipment. Preferably, the protective cylinder 130 is provided with multiple blocking surfaces 131, the number of which is the same as that of the fixture 500, and the blocking surfaces 131 face the fixture 500.

[0049] Please see Figure 3 In one embodiment, the unloading ladder 400 includes a robotic arm 410 and a slide 420. The robotic arm 410 is used to pick up the resistor 20 and place the resistor 20 into the slide 420.

[0050] Please see Figure 4 and Figure 6 In one embodiment, the test assembly 200 includes a base 210, a slide 220 and a probe 230. The slide 220 is used to push the probe 230 closer to or away from the fixture 500. An L-shaped bracket 221 is provided on the slide 220, and the probe 230 is disposed on the L-shaped bracket 221. The probe 230 can be quickly replaced by disassembling the L-shaped bracket 221.

[0051] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A resistance testing and marking device, characterized in that, include: The turntable and the test components, laser marking head, and unloading ladder arranged around the turntable; The turntable includes a gearbox, a loading platform, a protective cylinder, and multiple fixtures. The protective cylinder is located at the center of the loading platform, and the multiple fixtures are arranged around the protective cylinder. The fixture includes a pad, a floating stop, and a guide sheet metal. The pad has a contour cavity and a groove. The opening of the contour cavity faces away from the center of the turntable. The contour cavity is used to accommodate the resistor to be tested and to make the part of the resistor to be tested face the opening. The guide sheet metal is disposed on the gearbox and is located below the test component. The floating stop is slidably disposed in the groove. The guide sheet metal is used to drive the floating stop to extend into the contour cavity.

2. The resistance test marking apparatus of claim 1, wherein The protective cylinder is provided with multiple blocking surfaces, which face the fixture so that the fixture is located between the laser engraving head and the blocking surfaces.

3. The resistance test marking apparatus of claim 1, wherein, The floating stop includes a blocking part and a contact part. The width of the contact part is smaller than the width of the blocking part. The contact part penetrates through the material carrier and is used to abut against the guide sheet metal. The blocking part is used to fit against the resistor to be tested to provide support.

4. The resistance test marking apparatus of claim 3, wherein, The blocking part is provided with a chamfer.

5. The resistance testing and marking equipment according to claim 4, characterized in that, The width of the blocking part is smaller than the diameter of the opening, and there is a gap between the inner wall of the contoured cavity and the outer wall of the blocking part.

6. The resistance test marking apparatus of claim 1, wherein, The guide sheet metal is provided with an inclined surface and a retaining surface. The inclined surface is used to guide the floating block to rise, and the retaining surface is used to support the floating block.

7. The resistance test marking apparatus of claim 1, wherein The protective cylinder is provided with multiple blocking surfaces, the number of which is the same as that of the fixture, and the blocking surfaces face the fixture.

8. The resistance test marking apparatus of claim 1, wherein, The unloading ladder includes a robotic arm and a slide.

9. The resistance test marking apparatus of claim 1, wherein, The test assembly includes a base, a slide, and a probe, wherein the slide is used to move the probe closer to or away from the fixture.

10. The resistance test marking apparatus of claim 9, wherein, The slide is provided with an L-shaped bracket, and the probe is mounted on the L-shaped bracket.

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