Ceramic substrate jig for LED chip

By designing a fixture fixing mechanism and a support locking mechanism, the problem of cumbersome operation in the existing technology is solved, enabling rapid clamping and releasing of LED chips, improving grinding efficiency, and adapting to chips of different sizes and shapes.

CN224183423UActive Publication Date: 2026-05-01XIANGNENG HUALEI OPTOELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANGNENG HUALEI OPTOELECTRONICS
Filing Date
2025-05-07
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing ceramic substrate fixtures for LED chips require rotating a knob to drive a lead screw during clamping and fixing, which is cumbersome, affects the rapid installation and removal of chips, and results in low grinding efficiency.

Method used

A ceramic substrate fixture for LED chips was designed. By setting a fixture fixing mechanism and a support locking mechanism, and using components such as a fixed rotating rod, sliding sleeve, spring, adjusting bolt and locking protective block, the chip can be quickly clamped and released, adapting to chips of different sizes.

Benefits of technology

It enables rapid installation and removal of LED chips, improves grinding efficiency, adapts to chips of different sizes and shapes, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ceramic substrate jig for an LED chip, which comprises a jig fixing mechanism and a clamping and positioning rod arranged at the bottom of the jig fixing mechanism, a supporting and locking mechanism is arranged at the bottom of the jig fixing mechanism, and top sliding supports are symmetrically arranged at the top of the supporting and locking mechanism. The jig fixing mechanism comprises a first fixing support, a fixing sliding groove is formed in the periphery of the interior of the first fixing support, a fixing sliding rod is fixedly installed in the fixing sliding groove, a fixing sliding sleeve is slidably connected to the outer side of the fixing sliding rod, a fixing spring is fixedly installed on one side of the fixing sliding sleeve, and the fixing spring is fixedly installed on the fixing sliding sleeve. The bottom of the fixed sliding sleeve is rotatably connected with a fixed rotating rod, the clamping positioning rod continues to be fixed through the locking protection block, and therefore clamping and fixing of the chip can be achieved, when the locking protection block is loosened, rapid loosening of the chip can be achieved, and rapid installation and taking of the chip are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically to a ceramic substrate fixture for LED chips. Background Technology

[0002] To perform FA analysis on an LED chip, the ceramic substrate on the back of the LED chip needs to be ground off before FIB analysis can be performed. When grinding off the ceramic substrate on the back of the LED chip, it needs to be positioned and fixed to prevent the LED chip from shifting and being damaged during the grinding process.

[0003] Publication No. CN217800836U discloses a ceramic substrate fixture for grinding LED chips. The LED chip is placed on a support pad for grinding. Initially, a limiting plate is pushed outwards when the LED chip is placed. The limiting plate slides along a guide groove via a compressed spring. The limiting plate does not affect the placement of the LED chip and the support pad. Once the LED chip is positioned on the support pad, the limiting plate slides along the guide groove via the compressed spring, tightly clamping and fixing the LED chip. No sliding displacement occurs during the LED chip grinding process, and the limiting plate can clamp and position LED chips of different sizes. However, this patent still has the following problems in practical use:

[0004] Although the ceramic substrate fixture for grinding LED chips can clamp and fix the LED chips, it requires turning a knob to drive the lead screw to rotate, thereby moving the limiting plate and clamping the LED chips. This operation is cumbersome and cannot achieve quick installation and removal of LED chips, thus affecting the grinding efficiency of LED chips.

[0005] Therefore, a ceramic substrate fixture for LED chips is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a ceramic substrate fixture for LED chips, so as to solve the problem mentioned in the background art that when clamping and fixing LED chips, it is necessary to rotate a knob to drive a lead screw to rotate, thereby moving the limiting plate and clamping and fixing the LED chips. This operation is cumbersome and cannot achieve quick installation and removal of LED chips, thus affecting the grinding efficiency of LED chips.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a ceramic substrate fixture for LED chips, comprising a fixture fixing mechanism and a clamping and positioning rod installed at the bottom of the fixture fixing mechanism;

[0008] The bottom of the fixture fixing mechanism is provided with a support locking mechanism, and the top of the support locking mechanism is symmetrically provided with a top sliding bracket.

[0009] Also includes:

[0010] The fixture fixing mechanism includes a first fixing bracket, and a fixing groove is formed around the inside of the first fixing bracket. A fixing sliding rod is fixedly installed inside the fixing groove.

[0011] Among them, a fixed sliding sleeve is slidably connected to the outer side of the fixed sliding rod, and a fixed spring is fixedly installed on one side of the fixed sliding sleeve;

[0012] The bottom of the fixed sliding sleeve is rotatably connected to a fixed rotating rod, and the top of the fixed sliding sleeve is fixedly installed with a second fixed bracket.

[0013] Preferably, an adjusting bolt is threadedly connected to the center of the second fixed bracket, an adjusting knob is fixedly installed at one end of the adjusting bolt, and a clamping protective block is rotatably connected to the end of the adjusting bolt away from the adjusting knob. The clamping protective block is slidably connected to the first fixed bracket, and the clamping positioning rod is fixedly installed at the center of the bottom of the first fixed bracket.

[0014] Preferably, the support and locking mechanism includes a locking worktable, with bottom sliding brackets symmetrically installed on both sides of the locking worktable, and support legs symmetrically installed at the bottom of each of the two bottom sliding brackets. A bottom sliding rod is fixedly installed inside the bottom sliding bracket, and a bottom sliding sleeve is symmetrically slidably connected to the outside of the bottom sliding rod.

[0015] Preferably, a bottom spring is fixedly installed on one side of the bottom sliding sleeve, a support rotating rod is rotatably connected to the top of the two bottom sliding sleeves, a support rotating shaft is rotatably connected to the middle of the two support rotating rods, a top sliding sleeve is rotatably connected to the top of the two support rotating rods, and the locking worktable is slidably connected to the clamping positioning rod.

[0016] Preferably, a top sliding rod is slidably connected inside the top sliding sleeve, a top spring is fixedly installed on one side of each of the two top sliding sleeves, the top sliding rod is fixedly installed inside the top sliding bracket, the top sliding bracket is symmetrically installed on both sides of the first fixed bracket, and a rotating support is symmetrically installed on one side of the top center position of the locking worktable.

[0017] Preferably, a rotating knob is rotatably connected to one side of the rotating support, a rotating worm is fixedly connected to the end of the rotating knob, a rotating worm gear is meshed with one side of the rotating worm, a locking cylinder is rotatably connected to the bottom of the rotating worm gear, and the locking cylinder is fixedly installed on the top of the locking workbench.

[0018] Preferably, the rotating worm gear has a spiral groove around its interior, a spiral slider is slidably connected inside the spiral groove, a locking sliding rod is fixedly installed at the bottom of the spiral slider, the locking sliding rod is slidably connected to the locking cylinder, a locking protective block is fixedly connected to the end of the locking sliding rod, and the locking protective block is in contact with the clamping positioning rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This ceramic substrate fixture for LED chips presses down on the first fixed bracket. Under the action of the fixed rotating rod, the fixed rotating rod rotates, causing the fixed sliding sleeve to move closer together on the outside of the fixed sliding rod and compress the fixed spring. Simultaneously, the fixed sliding sleeve causes the second fixed bracket to move closer together, thereby clamping and fixing the chip through the adjusting bolts and clamping protective blocks inside the second fixed bracket. The locking protective block further fixes the clamping positioning rod, thus achieving chip clamping and fixing. When the locking protective block is released, the chip can be quickly released, facilitating rapid chip installation and removal. The specific details are as follows:

[0020] 1. By setting up a fixture fixing mechanism, not only can the first fixing bracket be pressed down, but also, under the action of the fixing rotating rod, the fixing rotating rod rotates and drives the fixing sliding sleeve to move closer to each other on the outside of the fixing sliding rod and squeeze the fixing spring. At the same time, the fixing sliding sleeve drives the second fixing bracket to move closer to each other, thereby clamping and fixing the chip through the adjusting bolt and clamping protective block inside the second fixing bracket, thus achieving the effect of fixing the chip. At the same time, when encountering chips of different sizes or irregular chips, the adjusting knob is turned to drive the adjusting bolt to rotate inside the thread of the second fixing bracket, thereby adjusting the distance between the two clamping protective blocks, which can adapt to chips of different sizes.

[0021] 2. By setting up a support locking mechanism, the support device formed by the bottom sliding rod, bottom sliding sleeve, and bottom spring inside the bottom sliding bracket and the top sliding sleeve, top sliding rod, and top spring inside the top sliding bracket can be used to support the first fixed bracket under the action of the support rotating rod and support rotating shaft. At the same time, by rotating the knob, the rotating worm gear is driven to rotate. Utilizing the meshing connection between the rotating worm gear and the rotating worm wheel, the rotating worm wheel can be rotated. Under the limiting action of the spiral sliding groove, the spiral slider drives the locking sliding rod to slide inside the locking cylinder. The locking protective block continues to fix the clamping positioning rod, thereby achieving the clamping and fixing of the chip. When the locking protective block is released, the chip can be quickly released, facilitating the rapid installation and removal of the chip. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0023] Figure 2 This is a three-dimensional structural diagram of the fixture fixing mechanism in this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional structural diagram of the first fixed bracket in this utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the support and locking mechanism in this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the supporting rotating rod in this utility model;

[0027] Figure 6 This is a three-dimensional cross-sectional structural diagram of the locking cylinder in this utility model.

[0028] In the diagram: 1. Fixture fixing mechanism; 101. First fixed bracket; 102. Fixed slide groove; 103. Fixed sliding rod; 104. Fixed sliding sleeve; 105. Fixed spring; 106. Fixed rotating rod; 107. Second fixed bracket; 108. Adjusting bolt; 109. Adjusting knob; 110. Clamping protective block; 111. Clamping positioning rod; 2. Support locking mechanism; 201. Locking worktable; 202. Bottom sliding bracket; 203. Support leg; 204. Bottom 205. Sliding rod; 206. Bottom sliding sleeve; 207. Bottom spring; 208. Support rotating rod; 209. Support rotating shaft; 200. Top sliding sleeve; 210. Top sliding rod; 211. Top spring; 212. Top sliding bracket; 213. Rotating support; 214. Rotating knob; 215. Rotating worm gear; 216. Rotating worm wheel; 217. Locking cylinder; 218. Helical groove; 219. Helical slider; 220. Locking sliding rod; 221. Locking protective block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6This utility model provides a technical solution: a ceramic substrate fixture for LED chips, including a fixture fixing mechanism 1 and a clamping and positioning rod 111 installed at the bottom of the fixture fixing mechanism 1. A support locking mechanism 2 is provided at the bottom of the fixture fixing mechanism 1, and a top sliding bracket 212 is symmetrically provided at the top of the support locking mechanism 2. The fixture fixing mechanism 1 includes a first fixing bracket 101, with a fixing groove 102 formed around its interior. A fixing sliding rod 103 is fixedly installed inside the fixing groove 102. A fixing sliding sleeve 104 is slidably connected to the outer side of the fixing sliding rod 103. A fixing spring 105 is fixedly installed on one side of the fixing sliding sleeve 104. A fixing rotating rod 106 is rotatably connected to the bottom of the fixing sliding sleeve 104. A second fixing bracket 107 is fixedly installed at the top of the fixing sliding sleeve 104. An adjusting bolt 108 is threadedly connected to the center of the second fixing bracket 107, and an adjusting knob 109 is fixedly installed at one end of the adjusting bolt 108. The end of the adjusting bolt 108 away from the adjusting knob 109 is rotatably connected to a clamping protective block 110. The clamping protective block 110 is slidably connected to the first fixed bracket 101. The clamping positioning rod 111 is fixedly installed at the bottom center of the first fixed bracket 101. When the first fixed bracket 101 is pressed down, under the action of the fixed rotating rod 106, the fixed rotating rod 106 rotates, causing the fixed sliding sleeve 104 to move closer to each other on the outside of the fixed sliding rod 103 and squeeze the fixed spring 105. At the same time, the fixed sliding sleeve 104 causes the second fixed bracket 107 to move closer to each other. Thus, the chip is clamped and fixed by the adjusting bolt 108 and the clamping protective block 110 inside the second fixed bracket 107, thereby achieving the effect of fixing the chip. At the same time, when encountering chips of different sizes or irregular chips, the adjusting bolt 108 is rotated inside the second fixed bracket 107 by rotating the adjusting knob 109, thereby adjusting the distance between the two clamping protective blocks 110, which can accommodate chips of different sizes.

[0031] The support locking mechanism 2 includes a locking worktable 201. Bottom sliding brackets 202 are symmetrically mounted on both sides of the locking worktable 201. Support legs 203 are symmetrically mounted on the bottom of each of the two bottom sliding brackets 202. Bottom sliding rods 204 are fixedly mounted inside each bottom sliding bracket 202. Bottom sliding sleeves 205 are symmetrically slidably connected to the outer sides of the bottom sliding rods 204. A bottom spring 206 is fixedly mounted on one side of each bottom sliding sleeve 205. Support rotating rods 207 are rotatably connected to the tops of the two bottom sliding sleeves 205. Support rotating shafts 208 are rotatably connected to the middle of the two support rotating rods 207. Top sliding sleeves 209 are rotatably connected to the tops of the two support rotating rods 207. The locking worktable 201... Sliding connection with clamping positioning rod 111, top sliding sleeve 209 is slidably connected to top sliding rod 210 inside, top spring 211 is fixedly installed on one side of each of the two top sliding sleeves 209, top sliding rod 210 is fixedly installed inside top sliding bracket 212, top sliding bracket 212 is symmetrically installed on both sides of the first fixed bracket 101, rotating support 213 is symmetrically installed on one side of the top center position of locking worktable 201, rotating knob 214 is rotatably connected to one side of rotating support 213, rotating worm 215 is fixedly connected to the end of rotating knob 214, rotating worm gear 216 is meshed on one side of rotating worm gear 215, and locking cylinder 216 is rotatably connected to the bottom of rotating worm gear 216. 17. The locking cylinder 217 is fixedly installed on the top of the locking workbench 201. The rotating worm gear 216 has a spiral groove 218 on its inner periphery. A spiral slider 219 is slidably connected inside the spiral groove 218. A locking sliding rod 220 is fixedly installed at the bottom of the spiral slider 219. The locking sliding rod 220 is slidably connected to the locking cylinder 217. A locking protective block 221 is fixedly connected to the end of the locking sliding rod 220. The locking protective block 221 is in contact with the clamping positioning rod 111. The bottom sliding rod 204, bottom sliding sleeve 205 and bottom spring 206 inside the bottom sliding bracket 202 are connected to the top sliding sleeve 209, top sliding rod 210 and top spring inside the top sliding bracket 212. The support device 211 supports the first fixed bracket 101 under the action of the support rotating rod 207 and the support rotating shaft 208. At the same time, the rotating knob 214 drives the rotating worm 215 to rotate. Utilizing the meshing connection between the rotating worm 215 and the rotating worm wheel 216, the rotating worm wheel 216 can be rotated. Under the limiting action of the spiral slide groove 218, the spiral slider 219 drives the locking sliding rod 220 to slide inside the locking cylinder 217. The locking protective block 221 continues to fix the clamping positioning rod 111, thereby realizing the clamping and fixing of the chip. When the locking protective block 221 is released, the chip can be quickly released, which is convenient for the rapid installation and removal of the chip.

[0032] Working principle: Before using this type of ceramic substrate fixture for LED chips, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6 As shown, firstly, pressing down the first fixed bracket 101 causes the fixed rotating rod 106 to rotate, simultaneously driving the fixed sliding sleeve 104 to move closer together on the outside of the fixed sliding rod 103 and compress the fixed spring 105. At the same time, the fixed sliding sleeve 104 drives the second fixed bracket 107 to move closer together, thereby clamping and fixing the chip through the adjusting bolt 108 and clamping protective block 110 inside the second fixed bracket 107, achieving the effect of fixing the chip. Furthermore, when encountering chips of different sizes or irregular chips, rotating the adjusting knob 109 causes the adjusting bolt 108 to rotate internally within the second fixed bracket 107, thereby adjusting the distance between the two clamping protective blocks 110 to accommodate chips of different sizes. Secondly, utilizing the bottom sliding rod 204 and bottom sliding... The support device, consisting of the top sliding sleeve 209, the top sliding rod 210, and the top spring 211 inside the top sliding bracket 212, is formed by the sleeve 205, the bottom spring 206, the top sliding bracket 212, and the top sliding sleeve 209. Under the action of the support rotating rod 207 and the support rotating shaft 208, it supports the first fixed bracket 101. At the same time, the rotating knob 214 drives the rotating worm 215 to rotate. Utilizing the meshing connection between the rotating worm 215 and the rotating worm wheel 216, the rotating worm wheel 216 can be rotated. Under the limiting action of the spiral groove 218, the spiral slider 219 drives the locking sliding rod 220 to slide inside the locking cylinder 217. The locking protective block 221 continues to fix the clamping positioning rod 111, thereby achieving the clamping and fixing of the chip. When the locking protective block 221 is released, the chip can be quickly released, facilitating the quick installation and removal of the chip.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ceramic substrate fixture for LED chips, comprising a fixture fixing mechanism (1) and a clamping and positioning rod (111) installed at the bottom of the fixture fixing mechanism (1). The bottom of the fixture fixing mechanism (1) is provided with a support locking mechanism (2), and the top of the support locking mechanism (2) is symmetrically provided with a top sliding bracket (212). Its features are, Also includes: The fixture fixing mechanism (1) includes a first fixing bracket (101), and a fixing groove (102) is provided around the inside of the first fixing bracket (101). A fixing sliding rod (103) is fixedly installed inside the fixing groove (102). Among them, a fixed sliding sleeve (104) is slidably connected to the outer side of the fixed sliding rod (103), and a fixed spring (105) is fixedly installed on one side of the fixed sliding sleeve (104). The bottom of the fixed sliding sleeve (104) is rotatably connected to a fixed rotating rod (106), and the top of the fixed sliding sleeve (104) is fixedly installed with a second fixed bracket (107).

2. The ceramic substrate fixture for LED chips according to claim 1, characterized in that: An adjusting bolt (108) is threadedly connected to the center of the second fixed bracket (107). An adjusting knob (109) is fixedly installed at one end of the adjusting bolt (108). A clamping protective block (110) is rotatably connected to the other end of the adjusting bolt (108) away from the adjusting knob (109). The clamping protective block (110) is slidably connected to the first fixed bracket (101). The clamping positioning rod (111) is fixedly installed at the center of the bottom of the first fixed bracket (101).

3. The ceramic substrate jig for an LED chip according to claim 1, wherein: The support locking mechanism (2) includes a locking workbench (201), on which bottom sliding brackets (202) are symmetrically installed on both sides. Support legs (203) are symmetrically installed on the bottom of each of the two bottom sliding brackets (202). Bottom sliding rods (204) are fixedly installed inside the bottom sliding brackets (202), and bottom sliding sleeves (205) are symmetrically slidably connected to the outside of the bottom sliding rods (204).

4. The ceramic substrate jig for an LED chip according to claim 3, wherein: A bottom spring (206) is fixedly installed on one side of the bottom sliding sleeve (205). The top of the two bottom sliding sleeves (205) is rotatably connected to a support rotating rod (207). The middle of the two support rotating rods (207) is rotatably connected to a support rotating shaft (208). The top of the two support rotating rods (207) is rotatably connected to a top sliding sleeve (209). The locking worktable (201) is slidably connected to the clamping positioning rod (111).

5. The ceramic substrate fixture for LED chips according to claim 4, characterized in that: The top sliding sleeve (209) is internally slidably connected to a top sliding rod (210). A top spring (211) is fixedly installed on one side of each of the two top sliding sleeves (209). The top sliding rod (210) is fixedly installed inside the top sliding bracket (212). The top sliding bracket (212) is symmetrically installed on both sides of the first fixed bracket (101). A rotating support (213) is symmetrically installed on one side of the top center position of the locking worktable (201).

6. The ceramic substrate fixture for LED chips according to claim 5, characterized in that: A rotating knob (214) is rotatably connected to one side of the rotating support (213). A rotating worm (215) is fixedly connected to the end of the rotating knob (214). A rotating worm wheel (216) is meshed with one side of the rotating worm (215). A locking cylinder (217) is rotatably connected to the bottom of the rotating worm wheel (216). The locking cylinder (217) is fixedly installed on the top of the locking workbench (201).

7. The ceramic substrate jig for an LED chip according to claim 6, wherein: The rotating worm gear (216) has a spiral groove (218) around its interior. A spiral slider (219) is slidably connected inside the spiral groove (218). A locking slider (220) is fixedly installed at the bottom of the spiral slider (219). The locking slider (220) is slidably connected to the locking cylinder (217). A locking protective block (221) is fixedly connected to the end of the locking slider (220). The locking protective block (221) is in close contact with the clamping positioning rod (111).

Citation Information

Patent Citations

  • Ceramic substrate jig for grinding LED chip

    CN217800836U