A drilling jig for a resistor

Abstract

The utility model provides a kind of drilling jig for resistor, it includes receiving tray, cover plate, material taking frame and multiple stop nails.Receiving tray is equipped with multiple material discharge channels, multiple material discharge channels are parallel to each other, and positioning groove is equipped on material discharge channel;Cover plate covers on receiving tray, and cover plate is equipped with avoiding hole;Stop nail is equipped on cover plate, and spring and pressing bead are equipped on the end of stop nail towards positioning groove;Material taking frame is hollow structure, and supporting strip matched with material discharge channel is equipped in the inner chamber of material taking frame, and multiple layers of adhesive tape are equipped on supporting strip.Each positioning groove is equipped with one stop nail, and resistor in positioning groove is pressed by the elastic pressing structure of spring and pressing bead after cover plate is covered, and resistor to be drilled can be quickly clamped;All resistors in receiving tray can be taken out simultaneously by disassembling material taking frame, and adhesive tape on supporting strip sticks resistor bottom to prevent falling, so as to improve discharging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of resistance processing, and in particular to a drilling fixture for resistive materials. Background Technology

[0002] The sampling resistor includes a resistive element and current detection pins and voltage detection pins on the resistive element. These pins are connected to the resistive element by riveting or welding. Corresponding mounting holes need to be made on the resistive element for assembling the pins. Therefore, the production process of the sampling resistor involves hole machining, and since the resistors are products requiring batch processing, the current method of hole machining involves providing a dedicated clamping fixture. Multiple semi-finished products are clamped in the fixture for drilling, which improves drilling efficiency. However, the following problems exist in actual production: 1. Due to the objective existence of machining errors, there are differences in the flatness between multiple resistors clamped in the fixture. The operator needs to manually clamp the resistors to prevent them from shaking when turning the hole. Each resistor needs to be clamped, resulting in low clamping efficiency. 2. After each drilling, the fixing clamps on the resistors need to be removed one by one, resulting in a long material handling process. In summary, the existing resistor hole processing flow is characterized by low efficiency in clamping and disassembling resistors, long processing time in the process of picking up and placing resistors, and the drilling equipment being in standby mode during this period, resulting in discontinuous production and processing. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a drilling fixture for resistors, thereby improving the efficiency of clamping and disassembling resistors, reducing the time spent on product transfer, and avoiding long-term standby of drilling equipment, which would affect resistor production efficiency.

[0004] The objective of this utility model is achieved through the following technical solution: A drilling fixture for resistive elements includes: a receiving tray, a cover plate, a material picking frame, and multiple stop pins; The storage tray has multiple discharge channels that are parallel to each other. Each discharge channel has multiple positioning slots for receiving resistors to be drilled, and the part of the resistor to be drilled is suspended on the discharge channel. The cover plate covers the storage tray, and the cover plate has clearance holes; The stop pin is provided on the cover plate. A spring and a pressing bead are provided on one end of the stop pin facing the positioning groove. The spring is used to push the pressing bead into the positioning groove so that the pressing bead presses the resistive element. The material picking frame has a hollow structure, and the inner cavity of the material picking frame is provided with a support strip that matches the discharge channel. The support strip is provided with multiple layers of adhesive tape, which is used to adhere the resistive body.

[0005] In one embodiment, the depth of the discharge channel is greater than the depth of the positioning groove.

[0006] In one embodiment, the length of the tape is greater than the length of the support strip.

[0007] In one embodiment, the end of the tape is suspended outside the support strip, and the portion of the tape outside the support strip is non-adhesive.

[0008] In one embodiment, the material picking frame has a notch aligned with the support strip, and the end of the tape passes through the notch.

[0009] In one embodiment, a gap is provided between the inner cavity of the picking frame and the outer wall of the storage tray.

[0010] In one embodiment, a positioning pin is provided in the positioning groove.

[0011] In one embodiment, the plurality of positioning slots are arranged in an array.

[0012] The above-mentioned drilling fixture for resistive elements has the following beneficial effects: 1. Each positioning slot is equipped with a stop pin. After the cover plate is closed, the elastic pressing structure composed of spring and pressing ball holds the resistor in the positioning slot, which can quickly clamp the resistor to be drilled. 2. By disassembling the material picking frame, all resistors in the storage tray can be removed at the same time. The tape on the support strip is used to stick the bottom of the resistors to prevent them from falling off, thus improving the material feeding efficiency. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of a drilling fixture used for resistive elements; Figure 2 This is a schematic diagram showing the disassembled drilling fixture used for resistors; Figure 3 This is a cross-sectional schematic diagram of the location of the positioning groove; Figure 4This is a schematic diagram showing the connection between the material picking frame and the storage tray; Figure 5 This is a schematic diagram showing the fit between the material handling frame and the resistor. Figure 6 This is a schematic diagram showing the fit between the resistive element and the tape.

[0015] Reference numerals: 10, Drilling fixture for resistor element; 20, Resistor element; 100, Storage tray; 110, Discharge channel; 120, Positioning groove; 121, Positioning pin; 200, Cover plate; 210, Clearance hole; 300, Pick-up frame; 310, Support bar; 320, Adhesive tape; 330, Notch; 400, Stop pin; 410, Spring; 420, Pressing bead. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] 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.

[0019] Please see Figure 1 and Figure 2 This utility model provides a drilling fixture 10 for resistors, used to clamp resistors 20 to be drilled, which includes: a storage tray 100, a cover plate 200, a material picking frame 300 and multiple stop pins 400.

[0020] Please see Figure 2 and Figure 4The storage tray 100 has multiple discharge channels 110, which are parallel to each other. Each discharge channel 110 has multiple positioning grooves 120, which are used to accommodate the resistor 20 to be drilled. The part of the resistor 20 to be drilled is suspended on the discharge channel 110. In this way, the edge material generated during the drilling process falls into the discharge channel 110, which is convenient for subsequent cleaning.

[0021] Please see Figure 1 and Figure 3 The cover plate 200 covers the storage tray 100, and the cover plate 200 has a clearance hole 210. The clearance hole 210 is used to avoid the drill bit, so that the drill bit can pass through the cover plate 200 to drill the resistor 20 in the positioning groove 120. The part of the resistor 20 outside the range of the clearance hole 210 is blocked by the cover plate 200 to prevent the drill bit from scratching the surface of the resistor 20 during the cutting process.

[0022] Please see Figure 3 A stop pin 400 is provided on the cover plate 200. A spring 410 and a pressing bead 420 are provided on the end of the stop pin 400 facing the positioning groove 120. The spring 410 is used to push the pressing bead 420 into the positioning groove 120. The spring 410 and the pressing bead 420 cooperate to form an elastic pressing structure. After the cover plate 200 is covered on the storage tray 100, the spring 410 contracts according to the thickness of the resistor 20 and provides elastic force to press the pressing bead 420 against the resistor 20. The extension and contraction of the spring 410 offsets the flatness error of the resistor 20, ensuring that each resistor 20 is pressed on the positioning groove 120 after the cover plate 200 is closed, simplifying the clamping process and improving the clamping efficiency of the resistor.

[0023] Please see Figure 4 and Figure 6 The material picking frame 300 has a hollow structure. Inside the cavity of the material picking frame 300, there is a support strip 310 that matches the discharge channel 110. Multiple layers of adhesive tape 320 are applied to the support strip 310 for bonding the resistor 20. When the material picking frame 300 is placed on the storage tray 100, the support strip 310 is housed within the discharge channel 110. During drilling, the resistor 20 is positioned above the support strip 310. When the material picking frame 300 is removed, the support strip 310 lifts the resistor 20 from the positioning groove 120. At this time, the adhesive tape 320 adheres to the resistor 20 to prevent it from falling during the picking process. Simultaneously, the edge material generated during drilling is also carried away from the discharge channel 110. Figure 5 As shown, this is beneficial for improving material feeding efficiency.

[0024] The specific procedure for removing and placing resistor 20 during drilling is as follows: First, place the material picking frame 300 on the storage tray 100, so that the support bar 310 enters the discharge channel 110, with the adhesive side of the tape 320 facing outwards; then, stack the resistors 20 to be drilled into each positioning slot 120, cover the cover plate 200, and use the stop pins 400 on the cover plate 200 to press the resistors 20 into the positioning slots 120, and start the machine to perform the drilling operation.

[0025] After drilling is completed, lift the cover plate 200 and then lift the material picking frame 300. When the material picking frame 300 separates from the storage tray 100, the support bar 310 rises and contacts the resistor 20. The support bar 310 pushes the resistor 20 out of the positioning groove 120, and the tape 320 sticks the resistor 20 to prevent it from falling. When the material picking frame 300 is removed, all the resistors 20 can be taken away together, completing the unloading operation.

[0026] It should be noted that the positioning grooves 120 are spaced apart on the discharge channel 110, and the discharge channel 110 and the positioning grooves 120 are connected. Therefore, when the support bar 310 is located in the discharge channel 110, the part of the resistor 20 to be drilled is suspended above the support bar 310. The edge material generated during the drilling process can fall directly onto the surface of the tape 320. Thus, when the material frame 300 is removed, the edge material in the discharge channel 110 is also cleaned up, preparing for the next clamping operation.

[0027] Please see Figure 2 In one embodiment, the depth of the discharge channel 110 is greater than the depth of the positioning groove 120. When the support bar 310 is placed in the discharge channel 110, there is a gap between the support bar 310 and the resistor 20 to avoid direct contact between the support bar 310 and the resistor 20.

[0028] Please see Figure 5 and Figure 6 The tape 320 has multiple layers. After the feeding operation is completed, the used tape 320 can be torn off, allowing a new tape 320 to be used for the next feeding. This avoids the tape 320 becoming less sticky after repeated use, which could cause the resistor 20 to fall off during the feeding process. In one embodiment, the length of the tape 320 is greater than the length of the support bar 310. The end of the tape 320 is suspended outside the support bar 310, and the portion of the tape 320 outside the support bar 310 is non-sticky. The picking frame 300 has a notch 330 aligned with the support bar 310. The end of the tape 320 passes through the notch 330 to facilitate gripping and tearing off the tape 320, making it easy to replace.

[0029] In one embodiment, a gap is provided between the inner cavity of the picking frame 300 and the outer wall of the storage tray 100. The picking frame 300 is hung on the storage tray 100 by the support strip 310. Maintaining a gap between the picking frame 300 and the outer wall of the storage tray 100 can make the feeding process smoother.

[0030] Please see Figure 4 In one embodiment, a positioning pin 121 is provided in the positioning groove 120, which provides positioning for the resistor 20 in the positioning groove 120, thereby further improving the drilling accuracy.

[0031] The above-mentioned drilling fixture 10 for resistive elements has the following beneficial effects: 1. Each positioning groove 120 is equipped with a stop pin 400. After the cover plate 200 is closed, the elastic pressing structure composed of spring 410 and pressing bead 420 presses the resistor in the positioning groove 120, which can quickly clamp the resistor to be drilled. 2. By disassembling the material picking frame 300, all resistors in the storage tray 100 can be removed at the same time. The tape 320 on the support bar 310 is used to stick the bottom of the resistors to prevent them from falling off, thus improving the material feeding efficiency.

[0032] 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 drilling fixture for resistive elements, characterized in that, include: Storage tray, cover plate, material picking frame, and multiple stop pins; The storage tray has multiple discharge channels that are parallel to each other. Each discharge channel has multiple positioning slots for receiving resistors to be drilled, and the part of the resistor to be drilled is suspended on the discharge channel. The cover plate covers the storage tray, and the cover plate has clearance holes; The stop pin is provided on the cover plate. A spring and a pressing bead are provided on one end of the stop pin facing the positioning groove. The spring is used to push the pressing bead into the positioning groove so that the pressing bead presses the resistive element. The material picking frame has a hollow structure, and the inner cavity of the material picking frame is provided with a support strip that matches the discharge channel. The support strip is provided with multiple layers of adhesive tape, which is used to adhere the resistive body.

2. The drilling fixture for resistive elements according to claim 1, characterized in that, The depth of the discharge channel is greater than the depth of the positioning groove.

3. The drilling fixture for resistive elements according to claim 1, characterized in that, The length of the tape is greater than the length of the support strip.

4. The drilling fixture for resistive elements according to claim 3, characterized in that, The end of the tape is suspended outside the support strip, and the portion of the tape outside the support strip is non-adhesive.

5. The drilling fixture for resistive elements according to claim 1, characterized in that, The material picking frame has a notch, which is aligned with the support strip, and the end of the tape passes through the notch.

6. The drilling fixture for resistive elements according to claim 1, characterized in that, A gap is provided between the inner cavity of the material picking frame and the outer wall of the storage tray.

7. The drilling fixture for resistive elements according to claim 1, characterized in that, The positioning groove is equipped with a positioning pin.

8. The drilling fixture for resistive elements according to claim 1, characterized in that, The multiple positioning slots are arranged in an array.

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