An electronic component tray precision positioning clamp
Patent Information
- Application Number
- CN202522427319.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-17
AI Technical Summary
传统的托盘定位夹具存在一些不足：其一，调节灵活性欠缺，多数仅能实现单一方向的移动调节，难以适配复杂加工场景下的多维度精准定位需求；其二，夹持稳定性与防护性难以兼顾，部分采用刚性夹持方式，易对托盘及内部电子元器件造成挤压损伤，部分夹持力度不足，加工过程中易出现托盘偏移、松动现象；其三，适配性较差，夹持定位机构难以适配不同规格的托盘，通用性不足
[0006]本实用新型的有益效果是：稳定支架为整体结构提供了可靠的支撑基础，保障了夹具工作过程中的结构稳定性；移动调节机构采用相互垂直的第一导轨和第二导轨，配合对应的驱动组件，可带动夹持定位机构实现水平方向上的多维度精准移动调节，灵活满足不同加工场景的定位需求；夹持定位机构通过动力驱动单元带动对称的连接滑板沿导轨同步对向或背向移动，配合L型夹持块上的弹性橡胶材质夹持滑轮，既能对不同规格的托盘进行稳定夹持，又能通过滚动抵接减少对托盘的挤压损伤，轮面的防滑纹路进一步提升了夹持稳定性；同时辅助压紧组件通过驱动电机驱动压紧块上下移动，实现对托盘上下方向的压紧定位，有效避免加工过程中托盘出现上下窜动，双重保障了定位精度；此外，多个夹持定位机构能够实现多组托盘的定位夹持，大幅提升了生产效率；整体结构设计合理、操作便捷，兼具精准度与稳定性，有效保障了电子元器件后续加工处理的质量和效率。
Smart Images
Figure CN224826239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic manufacturing equipment technology, and in particular to a precision positioning fixture for electronic component trays. Background Technology
[0002] In the manufacturing process of electronic components, the pallet serves as the carrier and transfer medium for these components, and its positioning accuracy directly affects the processing quality, assembly precision, and testing accuracy of the electronic components. Traditional pallet positioning fixtures have several shortcomings: First, they lack adjustment flexibility, with most only allowing movement in a single direction, making it difficult to adapt to the multi-dimensional precision positioning requirements of complex processing scenarios; second, they struggle to balance clamping stability and protection, with some using rigid clamping methods that can easily cause crush damage to the pallet and internal electronic components, while others have insufficient clamping force, leading to pallet shifting and loosening during processing; third, they have poor adaptability, with the clamping and positioning mechanism unable to adapt to pallets of different specifications, resulting in insufficient versatility. Utility Model Content
[0003] To address some of the problems existing in the prior art, this utility model provides a precision positioning fixture for electronic component trays. This fixture is suitable for the processing, assembly, or testing of electronic components, enabling precise positioning and stable clamping of trays holding electronic components, thus ensuring the accuracy and efficiency of subsequent processing.
[0004] To achieve the above objectives, this utility model provides a precision positioning fixture for electronic component trays, comprising a tray for holding electronic components and a fixture body; the fixture body includes a stabilizing bracket, a moving adjustment mechanism, and a clamping and positioning mechanism, wherein the stabilizing bracket provides a supporting foundation for the overall structure; the moving adjustment mechanism is fixedly installed on the top end face of the stabilizing bracket, and the clamping and positioning mechanism is detachably installed on the upper end of the moving adjustment mechanism; a plurality of clamping and positioning mechanisms are provided, and a tray placement area is provided on each of them; the moving adjustment mechanism can drive the clamping and positioning mechanisms to achieve precise horizontal movement adjustment, and the clamping and positioning mechanisms can stably clamp and position the trays in the tray placement area, facilitating subsequent processing of the electronic components contained in the trays.
[0005] In operation, the stable bracket provides a supporting foundation for the overall structure. First, the adjustment mechanism is activated. The first drive assembly drives the second base plate to move horizontally along the first guide rail on the first base plate, while the second drive assembly drives the third base plate to move horizontally along the second guide rail on the second base plate, achieving bidirectional position adjustment on the horizontal plane. This adjusts the clamping and positioning mechanism, installed in the mounting groove on the upper end face of the third base plate, to the preset processing position. Next, the tray containing electronic components is placed in the tray placement area in the middle of the upper end face of the second support platform in the clamping and positioning mechanism. Then, the power drive unit at the bottom of the clamping and positioning mechanism begins operation. The drive cylinder assembly drives the connecting plate via the connecting turntable assembly, and the connecting plate then drives the connecting turntable assembly via the connecting turntable assembly. The lever pulls the symmetrical connecting slide plate to move horizontally in opposite directions along the guide rails on both sides of the first support platform. When the connecting slide plate moves to the position of the matching tray, the drive motor assemblies at both ends of the connecting slide plate drive the clamping block to rotate, so that the clamping pulleys at both ends of the clamping block roll and abut against the outer wall of the tray to achieve stable horizontal clamping. At the same time, the symmetrical auxiliary pressing assembly on the side of the tray placement area is activated, and the drive motor on the side of the fixing block drives the U-shaped block to move upward, which in turn drives the connecting block that is movably connected to the top of the fixing block to move, so that the pressing block at the extension end of the connecting block moves downward, pressing and fixing the tray in the tray placement area, and finally completing the precise positioning of the tray, which facilitates the subsequent processing of the electronic components contained in the tray.
[0006] The beneficial effects of this utility model are as follows: the stable bracket provides a reliable support foundation for the overall structure, ensuring the structural stability of the fixture during operation; the moving adjustment mechanism adopts mutually perpendicular first and second guide rails, and with corresponding drive components, it can drive the clamping and positioning mechanism to achieve multi-dimensional precise movement and adjustment in the horizontal direction, flexibly meeting the positioning needs of different processing scenarios; the clamping and positioning mechanism drives the symmetrical connecting slide plate to move synchronously in opposite or opposite directions along the guide rails through the power drive unit, and with the elastic rubber clamping pulleys on the L-shaped clamping block, it can not only stably clamp pallets of different specifications, but also reduce the squeezing damage to the pallets through rolling contact, and the anti-slip texture of the wheel surface further improves the clamping stability; at the same time, the auxiliary pressing component drives the pressing block to move up and down through the drive motor to achieve pressing and positioning of the pallet in the vertical direction, effectively preventing the pallet from moving up and down during processing, and doubly ensuring the positioning accuracy; in addition, multiple clamping and positioning mechanisms can realize the positioning and clamping of multiple sets of pallets, greatly improving production efficiency; the overall structure is reasonably designed, easy to operate, and combines accuracy and stability, effectively ensuring the quality and efficiency of subsequent processing of electronic components.
[0007] As a further improvement of this utility model, in order to achieve horizontal and vertical positioning and clamping of the pallet, the clamping and positioning mechanism includes a first support platform, with guide rails arranged on both sides of the first support platform along its length; symmetrical connecting slide plates are slidably connected to the guide rails; a power drive unit is fitted at the bottom of the first support platform and is connected to the connecting slide plates for driving the connecting slide plates to move horizontally on the guide rails; drive motor assemblies are installed at both ends of the connecting slide plates, and clamping blocks are provided at the output ends of the drive motor assemblies; the clamping blocks are generally L-shaped, with the middle of the bend connected to the output end of the drive motor assembly and clamping pulleys rotatably installed at both ends; the drive motor assembly drives the clamping pulleys to rotate with the clamping blocks and correspond to the pallet placement area; a second support platform is installed at the upper end of the first support platform, and the pallet placement area is located at the middle of the upper surface of the second support platform; auxiliary pressing components are also symmetrically arranged on the side ends of the pallet placement area for achieving vertical pressing and positioning.
[0008] As a further improvement of this utility model, in order to improve the transmission accuracy of the power drive and ensure the symmetry and stability of the clamping action, the power drive unit includes a drive cylinder assembly and a connecting turntable assembly. The output end of the drive cylinder assembly is connected to the connecting slide plate. The bottom of the connecting slide plate is provided with a slot, and several slots are evenly arranged. A connecting plate is provided on the connecting turntable assembly, and a connecting rod is provided between the connecting plate and the connecting slide plate. One end of the connecting rod is installed on the connecting plate, and the other end is embedded in the slot. The drive cylinder assembly drives the symmetrically arranged connecting slide plates to move horizontally in opposite or opposite directions. The connecting rod can be disassembled and replaced individually and connected to slots at different positions to assist in adjusting the sliding range of the connecting slide plate.
[0009] As a further improvement of this utility model, in order to achieve the pressing and fixing of the pallet in the pallet placement area, effectively prevent the pallet from jumping up and down during processing, and improve the stability and accuracy of processing; the auxiliary pressing component includes a fixing block installed on the top end face of the second support platform, and a drive motor is installed on the side end of the fixing block; a U-shaped block is provided at the output end of the drive motor, and a connecting block is movably connected to the top of the U-shaped block and the fixing block; the connecting block extends away from the U-shaped block, and a pressing block is provided at its extended end; the drive motor drives the pressing block to move up and down, thereby pressing and fixing the pallet in the pallet placement area.
[0010] As a further improvement of this utility model, in order to achieve two-dimensional precise movement adjustment of the clamping and positioning mechanism in the horizontal direction, improve the flexibility and applicability of the clamping and positioning mechanism, and adapt to the processing and positioning needs of different positions of the pallet; the movement adjustment mechanism includes a first base plate fixedly installed on the top of the stable support, and a first guide rail symmetrically arranged on the first base plate; a second base plate is slidably connected to the first guide rail, and a first driving component is also provided on the first base plate and its output end is connected to the bottom of the second base plate; the first driving component drives the second base plate to move horizontally on the first guide rail; a second guide rail symmetrically arranged on the second base plate, and a third base plate is slidably connected to the second guide rail; a second driving component is also provided on the second guide rail, and the output end of the second driving component is connected to the bottom of the third base plate; the second driving component drives the third base plate to move horizontally on the second guide rail; the first guide rail (202) is perpendicular to the second guide rail, and the upper end face of the third base plate is also provided with multiple mounting slots for installing the clamping and positioning mechanism.
[0011] As a further improvement of this utility model, in order to increase the friction between the clamping pulley and the outer wall of the tray and enhance the stability of clamping, while reducing damage to the tray during clamping and protecting the integrity of the tray and electronic components, the clamping pulley is made of elastic rubber material and its wheel surface is provided with uniformly distributed anti-slip texture; the clamping pulley rolls against the outer wall of the tray to stably clamp the tray. Attached Figure Description
[0012] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:
[0013] Figure 1 This is the front view of the present invention.
[0014] Figure 2 This is a top view of the present invention.
[0015] Figure 3 This is a schematic diagram of the clamping and positioning mechanism in this utility model. Figure 1 .
[0016] Figure 4 This is a schematic diagram of the clamping and positioning mechanism in this utility model. Figure 2 .
[0017] Figure 5 This is a schematic diagram of the auxiliary pressing component in this utility model.
[0018] Figure 6 This is a schematic diagram of the movable adjustment mechanism in this utility model.
[0019] The components include: 1. Stabilizing bracket; 2. Moving and adjusting mechanism; 201. First base plate; 202. First guide rail; 203. First drive assembly; 204. Second base plate; 205. Second guide rail; 206. Second drive assembly; 207. Third base plate; 208. Mounting slot; 3. Clamping and positioning mechanism; 301. First support platform; 302. Guide rail; 303. Connecting slide plate; 304. Drive motor assembly; 305. Clamping block; 306. Clamping pulley; 307. Drive cylinder assembly; 308. Connecting turntable assembly; 309. Connecting plate; 310. Connecting rod; 311. Slot; 312. Second support platform; 313. Auxiliary pressing assembly; 3131. Fixing block; 3132. Drive motor; 3133. U-shaped block; 3134. Connecting block; 3135. Pressing block; and 314. Tray placement area. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solutions in this utility model, the following description is provided in conjunction with the appendix. Figure 1-6 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] like Figure 1-6The diagram illustrates a precision positioning fixture for electronic component trays, comprising a tray for holding electronic components and a fixture body. The fixture body includes a stabilizing support 1, a moving adjustment mechanism 2, and a clamping and positioning mechanism 3. The stabilizing support 1 provides a supporting foundation for the overall structure. The moving adjustment mechanism 2 is fixedly installed on the top end face of the stabilizing support 1, and the clamping and positioning mechanism 3 is detachably installed on the upper end of the moving adjustment mechanism 2. Several clamping and positioning mechanisms 3 are provided, and each has a tray placement area 314. The moving adjustment mechanism 2 can drive the clamping and positioning mechanism 3 to achieve precise horizontal movement adjustment, and the clamping and positioning mechanism 3 can stably clamp and position the tray within the tray placement area 314, facilitating tray positioning. The electronic components inside are then processed. The clamping and positioning mechanism 3 includes a first support platform 301, with guide rails 302 arranged on both sides of the first support platform 301 along its length. Symmetrical connecting slide plates 303 are slidably connected to the guide rails 302. A power drive unit is provided at the bottom of the first support platform 301 and is connected to the connecting slide plates 303 for driving the connecting slide plates 303 to move horizontally on the guide rails 302. Drive motor assemblies 304 are installed at both ends of the connecting slide plates 303. Clamping blocks 305 are provided at the output ends of the drive motor assemblies 304. The clamping blocks 305 are generally L-shaped, with their bent middle part connected to the output end of the drive motor assembly 304 and extending to both ends for rotation. A clamping pulley 306 is installed; the drive motor assembly 304 drives the clamping pulley 306 to rotate with the clamping block 305 and correspond to the tray placement area 314; a second support platform 312 is installed on the upper end of the first support platform 301, and the tray placement area 314 is located in the middle of the upper end surface of the second support platform 312; auxiliary pressing components 313 are also symmetrically arranged on the side end of the tray placement area 314 for pressing and positioning in the vertical direction; the power drive unit includes a drive cylinder assembly 307 and a connecting turntable assembly 308, and the output end of the drive cylinder assembly 307 is connected to the connecting slide plate 303; the bottom of the connecting slide plate 303 is provided with a slot 311, and the slot 311 is evenly distributed Several of these components are provided; a connecting plate 309 is provided on the connecting turntable assembly 308, and a connecting rod 310 is provided between the connecting plate 309 and the connecting slide plate 303; one end of the connecting rod 310 is installed on the connecting plate 309, and the other end is embedded in the slot 311; the driving cylinder assembly 307 drives the symmetrically arranged connecting slide plates 303 to move horizontally in opposite or opposite directions; the connecting rod 310 can be individually disassembled and replaced and connected to the slots 311 at different positions to assist in adjusting the sliding range of the connecting slide plate 303; the auxiliary pressing assembly 313 includes a fixing block 3131 installed on the top end face of the second support platform 312, and a drive motor 3132 is installed on the side end of the fixing block 3131.The output end of the drive motor 3132 is provided with a U-shaped block 3133, and the top of the U-shaped block 3133 and the fixed block 3131 are movably connected to a connecting block 3134; the connecting block 3134 extends away from the U-shaped block 3133, and its extended end is provided with a pressing block 3135; the drive motor 3132 drives the pressing block 3135 to move up and down, thereby pressing and fixing the pallet in the pallet placement area 314; the moving adjustment mechanism 2 includes a first base plate 201 fixedly installed on the top of the stable support 1, and the first base plate 201 is symmetrically provided with parallel first guide rails 202; a second base plate 204 is slidably connected to the first guide rails 202, and the first base plate 201 is also provided with a first drive assembly 203 and its output end is connected to the bottom of the second base plate 204; the first drive assembly 203 drives the first base plate 201 to move the pressing block 3135 up and down, thereby pressing and fixing the pallet in the pallet placement area 314; the moving adjustment mechanism 2 includes a first base plate 201 fixedly installed on the top of the stable support 1, and its output end is connected to the bottom of the second base plate 204; the first drive assembly 203 drives the first base plate 204 to move the pressing block 3135 up and down, thereby pressing and fixing the pallet in the pallet placement area 314; the moving adjustment mechanism 2 includes a first base plate 201 fixedly installed on the top of the stable support 1, and a first base plate 202 fixedly installed on the top of the stable support 1, with a first guide rail 202 symmetrically arranged on the first base plate 201; the first base plate 204 is slidably connected to the first guide rail 202, and a first drive assembly The second base plate 204 moves horizontally on the first guide rail 202; symmetrically arranged parallel second guide rails 205 are provided on the second base plate 204, and a third base plate 207 is slidably connected to the second guide rail 205; a second drive assembly 206 is also provided on the second guide rail 205, and the output end of the second drive assembly 206 is connected to the bottom of the third base plate 207; the second drive assembly 206 drives the third base plate 207 to move horizontally on the second guide rail 205; the first guide rail 202 is perpendicular to the second guide rail 205, and the upper end face of the third base plate 207 is provided with multiple mounting slots 208 for mounting the clamping and positioning mechanism 3; the clamping pulley 306 is made of elastic rubber material, and its wheel surface is provided with evenly distributed anti-slip texture; the clamping pulley 306 rolls against the outer wall of the pallet to stably clamp the pallet.
[0023] When this utility model is in operation, the stable bracket 1 provides a supporting foundation for the overall structure. First, the moving adjustment mechanism 2 starts working, wherein the first drive component 203 drives the second base plate 204 to move horizontally along the first guide rail 202 on the first base plate 201, and at the same time the second drive component 206 drives the third base plate 207 to move horizontally along the second guide rail 205 on the second base plate 204, realizing bidirectional position adjustment on the horizontal plane, and adjusting the clamping and positioning mechanism 3 installed in the mounting groove 208 on the upper end face of the third base plate 207 to the preset processing position; then, the tray containing electronic components is placed in the tray placement area 314 in the middle of the upper end face of the second support platform 312 in the clamping and positioning mechanism 3. Subsequently, the power drive unit at the bottom of the clamping and positioning mechanism 3 starts to operate, and the drive cylinder assembly 307 drives the connecting plate 309 through the connecting turntable assembly 308. The connecting plate 309 then pulls the connecting plate 309 through the connecting rod 310. The connecting slide plate 303 moves horizontally in opposite directions along the guide rails 302 on both sides of the first support platform 301. When the connecting slide plate 303 moves to the position of the matching tray, the drive motor assembly 304 at both ends of the connecting slide plate 303 drives the clamping block 305 to rotate, so that the clamping pulleys 306 at both ends of the clamping block 305 roll against the outer wall of the tray to achieve stable horizontal clamping. At the same time, the auxiliary pressing assembly 313 symmetrically located on the side of the tray placement area 314 is activated, and the drive motor 3132 at the side of the fixing block 3131 drives the U-shaped block 3133 to move upward, thereby driving the connecting block 3134, which is movably connected to the top of the fixing block 3131, to move. This causes the pressing block 3135 at the extension end of the connecting block 3134 to move downward, pressing and fixing the tray in the tray placement area 314, thus completing the precise positioning of the tray and facilitating the subsequent processing of the electronic components contained in the tray.
[0024] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A precision positioning fixture for an electronic component tray, comprising a tray for holding electronic components and a fixture body; characterized in that: The fixture body includes a stabilizing bracket (1), a moving adjustment mechanism (2), and a clamping and positioning mechanism (3). The stabilizing bracket (1) provides a supporting foundation for the overall structure. The moving adjustment mechanism (2) is fixedly installed on the top end face of the stabilizing bracket (1). The clamping and positioning mechanism (3) is detachably installed on the upper end of the moving adjustment mechanism (2). Several clamping and positioning mechanisms (3) are provided, and a tray placement area (314) is provided on them. The moving adjustment mechanism (2) can drive the clamping and positioning mechanism (3) to achieve precise movement and adjustment in the horizontal direction. The clamping and positioning mechanism (3) can stably clamp and position the tray in the tray placement area (314), which facilitates the subsequent processing of the electronic components placed in the tray.
2. The precision positioning fixture for electronic component trays according to claim 1, characterized in that: The clamping and positioning mechanism (3) includes a first support platform (301), and guide rails (302) are provided on both sides of the first support platform (301) along its length direction; symmetrical connecting slide plates (303) are slidably connected to the guide rails (302); a power drive unit is provided at the bottom of the first support platform (301) and is connected to the connecting slide plates (303) for driving the connecting slide plates (303) to move horizontally on the guide rails (302); drive motor assemblies (304) are installed at both ends of the connecting slide plates (303), and clamping blocks (305) are provided at the output end of the drive motor assemblies (304); the clamping blocks (305) is L-shaped in general. Its bent middle part is connected to the output end of the drive motor assembly (304) and the two ends of the extension are rotatably mounted with clamping pulleys (306). The drive motor assembly (304) drives the clamping pulleys (306) to rotate with the clamping block (305) and correspond to the pallet placement area (314). The upper end of the first support platform (301) is equipped with a second support platform (312), and the pallet placement area (314) is located in the middle of the upper end surface of the second support platform (312). The side end of the pallet placement area (314) is also symmetrically provided with auxiliary pressing components (313) for pressing and positioning in the vertical direction.
3. The precision positioning fixture for electronic component trays according to claim 2, characterized in that: The power drive unit includes a drive cylinder assembly (307) and a connecting turntable assembly (308). The output end of the drive cylinder assembly (307) is connected to the connecting slide plate (303) in a transmission connection. The bottom of the connecting slide plate (303) is provided with a slot (311), and several slots (311) are evenly arranged. A connecting plate (309) is provided on the connecting turntable assembly (308), and a connecting rod (310) is provided between the connecting plate (309) and the connecting slide plate (303). One end of the connecting rod (310) is installed on the connecting plate (309), and the other end is embedded in the slot (311). The drive cylinder assembly (307) drives the symmetrically arranged connecting slide plates (303) to move horizontally in opposite or opposite directions. The connecting rod (310) can be disassembled and replaced individually and connected to slots (311) at different positions to assist in adjusting the sliding range of the connecting slide plate (303).
4. The precision positioning fixture for electronic component trays according to claim 2, characterized in that: The auxiliary clamping assembly (313) includes a fixing block (3131) installed on the top end face of the second support platform (312), and a drive motor (3132) is installed on the side end of the fixing block (3131); a U-shaped block (3133) is provided at the output end of the drive motor (3132), and a connecting block (3134) is movably connected to the top of the U-shaped block (3133) and the fixing block (3131); the connecting block (3134) extends away from the U-shaped block (3133), and a clamping block (3135) is provided at its extended end; the drive motor (3132) drives the clamping block (3135) to move up and down, thereby clamping and fixing the pallet in the pallet placement area (314).
5. The precision positioning fixture for electronic component trays according to claim 1, characterized in that: The movable adjustment mechanism (2) includes a first base plate (201) fixedly installed on the top of the stabilizing bracket (1), on which symmetrically arranged parallel first guide rails (202) are provided; a second base plate (204) is slidably connected to the first guide rails (202), and a first drive assembly (203) is also provided on the first base plate (201) with its output end connected to the bottom of the second base plate (204); the first drive assembly (203) drives the second base plate (204) to move horizontally on the first guide rails (202); symmetrically arranged parallel first guide rails (202) are provided on the second base plate (204). The second guide rail (205) is slidably connected to the third base plate (207); the second guide rail (205) is also provided with a second drive assembly (206), the output end of the second drive assembly (206) is connected to the bottom of the third base plate (207); the second drive assembly (206) drives the third base plate (207) to move horizontally on the second guide rail (205); the first guide rail (202) is perpendicular to the second guide rail (205), and the upper end face of the third base plate (207) is also provided with multiple mounting slots (208) for mounting the clamping and positioning mechanism (3).
6. The electronic component tray precision positioning fixture according to claim 2, characterized in that: The clamping pulley (306) is made of elastic rubber material, and its wheel surface is provided with uniformly distributed anti-slip texture; the clamping pulley (306) rolls against the outer side wall of the pallet to stably clamp the pallet.