Search

CN-224223676-U - Rotary BGA chip clamping device

CN224223676UCN 224223676 UCN224223676 UCN 224223676UCN-224223676-U

Abstract

The utility model discloses a rotary type BGA chip clamping device which comprises a supporting main disc, a rotating shaft, a rotating assembly, a sliding assembly and a clamping assembly, wherein the top end of the rotating shaft is fixed with the rotating assembly, the bottom end of the rotating shaft is fixed with the middle part of the supporting main disc, the rotating assembly uses the rotating shaft as a supporting point to conduct fixed shaft rotation above the supporting main disc, the sliding assembly is arranged between the rotating assembly and the supporting main disc, the clamping assembly is arranged at the top of the rotating assembly and is fixedly connected with the sliding assembly, constant clamping force can be provided for BGA chips of different specifications through the cooperation operation of the rotating assembly, the sliding assembly and the clamping assembly, and an automatic and continuous clamping effect is achieved, so that clamping looseness caused by thermal expansion and contraction in a maintenance process is avoided, and the rotary type BGA chip clamping device is convenient and quick to use and has good practicability.

Inventors

  • LI NANJI

Assignees

  • 李南极

Dates

Publication Date
20260512
Application Date
20250529

Claims (8)

  1. 1. The rotary type BGA chip clamping device is characterized by comprising a supporting main disc, a rotating shaft, a rotating assembly, a sliding assembly and a clamping assembly, wherein the top end of the rotating shaft is fixed with the rotating assembly, the bottom end of the rotating shaft is fixed with the middle part of the supporting main disc, the rotating assembly uses the rotating shaft as a supporting point to conduct fixed shaft rotation above the supporting main disc, the sliding assembly is arranged between the rotating assembly and the supporting main disc, and the clamping assembly is arranged at the top of the rotating assembly and is fixedly connected with the sliding assembly.
  2. 2. The rotary BGA chip clamping device of claim 1, wherein the rotating assembly comprises a turntable, a first guide rod and a second guide rod, the bottom center of the turntable is fixed with the top end of the rotating shaft, the first guide rod and the second guide rod are respectively arranged at the left side and the right side of the rotating shaft and fixed at the bottom of the turntable, the sliding assembly is sleeved on the first guide rod and the second guide rod in a sliding manner, the bottom of the sliding assembly is connected with the supporting main disc, and the top of the sliding assembly is fixedly connected with the clamping assembly.
  3. 3. The rotary BGA chip clamping device of claim 2, wherein the sliding assembly comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are symmetrically arranged on the upper side and the lower side of the rotating shaft, two ends of the first sliding block and the second sliding block are respectively sleeved on the first guide rod and the second guide rod in a sliding manner, guide pins are arranged at the bottoms of the first sliding block and the second sliding block, the bottom ends of the guide pins are connected with the supporting main disc, and the clamping assembly is arranged at the top of the turntable and is respectively fixed with the first sliding block and the second sliding block.
  4. 4. The rotary BGA chip holding device of claim 3, wherein the holding assembly comprises a first clamping plate, a second clamping plate and two groups of fasteners, wherein the first clamping plate and the second clamping plate are respectively arranged at the top of the turntable and are respectively fixed with the first sliding block and the second sliding block through the two groups of fasteners.
  5. 5. The rotary BGA chip holding device as set forth in claim 3, wherein the upper and lower sides of the middle portion of the supporting main plate are respectively provided with an arc-shaped guide groove, the two arc-shaped guide grooves are inclined at a certain angle, and the bottom ends of the guide pins at the bottoms of the first slider and the second slider are respectively embedded in the two arc-shaped guide grooves and form an embedded sliding fit with the two arc-shaped guide grooves.
  6. 6. The rotary BGA chip holding device of claim 4, wherein the turntable is provided with two groups of holding sliding openings, the bottom ends of the two groups of fasteners respectively penetrate through the two groups of holding sliding openings to be fixed with the first sliding block and the second sliding block, and the first clamping plate and the second clamping plate are respectively pressed on the top of the turntable.
  7. 7. The rotary BGA chip holding device as set forth in claim 2, wherein two clamping grooves are provided at intervals at the bottom of the turntable, and two ends of the first guide bar and the second guide bar are respectively fixed with two ends of the two clamping grooves.
  8. 8. The rotary BGA chip holding apparatus as set forth in claim 1, wherein the bottom of the supporting main plate is fixedly provided with a fixing base plate, and an anti-slip spacer is fixedly provided at the bottom edge of the fixing base plate.

Description

Rotary BGA chip clamping device Technical Field The utility model belongs to the technical field of electronic product maintenance, and particularly relates to a rotary type BGA chip clamping device. Background In the process of welding, detecting, packaging, maintaining and the like of the BGA chip, the chip is fixed through a clamping device to ensure the processing precision, for example, the chip position is required to be kept stable in the reflow soldering process, and the processing precision and quality of the chip are directly influenced by the stability of the clamping device. At present, the clamping modes commonly used in the industry mainly comprise screw clamping and magnetic clamping, however, the two clamping modes have obvious defects in practical application that 1) the screw clamping is realized through point-to-point mechanical fixation, when the temperature change of the environment causes thermal expansion and cold contraction of a chip or a clamping part, stable clamping force cannot be continuously provided for the BGA chip, clamping looseness is extremely easy to cause due to stress change, and 2) the magnetic clamping also has similar problems, the chip is adsorbed by virtue of fixed magnetic force points, the contact state between the magnetic force points and the chip is changed under the effect of thermal expansion and cold contraction, and constant clamping force is difficult to maintain. In the prior art, no matter screw rod type or magnetic type clamping is adopted, the problem that the clamping is not firm exists for a long time because the point-to-point clamping structure is adopted and the size change caused by thermal expansion and cold contraction cannot be automatically adapted, and the working efficiency is influenced by frequent hand screwing clamping. Disclosure of utility model In order to solve the problems in the prior art, the utility model provides a rotary type BGA chip clamping device, which can provide constant clamping force for BGA chips with different specifications through the cooperation operation of a rotating assembly, a sliding assembly and a clamping assembly, thereby realizing automatic and continuous clamping effect. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The utility model provides a rotation type BGA chip clamping device, includes support master, rotation axis, rotating assembly, slip subassembly and clamping assembly, the top of rotation axis is fixed mutually with rotating assembly, and its bottom is fixed mutually with the middle part of supporting the master, and rotating assembly uses the rotation axis to be the dead axle rotation in the top of supporting the master as the strong point, slip subassembly installs between rotating assembly and support master, clamping assembly sets up in rotating assembly's top and with slip subassembly fixed connection. Further, the rotating assembly comprises a rotary table, a first guide rod and a second guide rod, the bottom center of the rotary table is fixed with the top end of the rotary shaft, the first guide rod and the second guide rod are respectively arranged on the left side and the right side of the rotary shaft and are fixed at the bottom of the rotary table, the sliding assembly is arranged on the first guide rod and the second guide rod in a sliding sleeve mode, the bottom of the sliding assembly is connected with the supporting main disc, and the top of the sliding assembly is fixedly connected with the clamping assembly. Further, the sliding assembly comprises a first sliding block and a second sliding block, the first sliding block and the second sliding block are symmetrically arranged on the upper side and the lower side of the rotating shaft, two ends of the first sliding block and the second sliding block are respectively sleeved on the first guide rod and the second guide rod in a sliding mode, guide pins are arranged at the bottoms of the first sliding block and the second sliding block, the bottom ends of the guide pins are connected with the supporting main disc, and the clamping assembly is arranged at the top of the rotating disc and is respectively fixed with the first sliding block and the second sliding block. Further, the clamping assembly comprises a first clamping plate, a second clamping plate and two groups of fasteners, wherein the first clamping plate and the second clamping plate are respectively arranged at the top of the turntable and are respectively fixed with the first sliding block and the second sliding block through the two groups of fasteners. Further, arc guide grooves are respectively formed in the upper side and the lower side of the middle of the supporting main disc, the two arc guide grooves are inclined at a certain angle, and the bottom ends of guide pins at the bottoms of the first sliding block and the second sliding block are respectively embedded in the two arc guide grooves and form e