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CN-121977454-A - Laser thickness and height measuring mechanism for battery cell

CN121977454ACN 121977454 ACN121977454 ACN 121977454ACN-121977454-A

Abstract

The invention relates to the technical field of battery cell production, and particularly discloses a laser thickness and height measuring mechanism for a battery cell, which comprises the following components: the machine comprises a machine base, wherein a feeding conveyor is arranged at the front part of a table top of the machine base, a discharging conveyor is arranged at the rear part of the table top of the machine base, a pair of baffle plates are symmetrically arranged on the front side and the rear side of the feeding conveyor and the front side and the rear side of the discharging conveyor, a supporting frame is arranged on the machine base table top between the feeding conveyor and the discharging conveyor, a double-station synchronous carrying assembly is arranged at the top of the supporting frame, and an electric core thickness measuring assembly and an electric core height measuring assembly are arranged at the bottom of the supporting frame. According to the laser thickness measurement and height measurement mechanism for the battery cells, the first driving block and the first moving frame are driven to move through the radial linear motor in the double-station synchronous carrying assembly, one group of carrying units in the whole assembly grabs the battery cells to be measured from the feeding conveyor and puts the battery cells into the test holding frame, and the other group grabs the tested battery cells from the test holding frame and carries the battery cells to the discharging conveyor, so that feeding and discharging are synchronously carried out.

Inventors

  • MU JUN

Assignees

  • 深圳市汇鼎智能制造技术有限公司

Dates

Publication Date
20260505
Application Date
20260409

Claims (10)

  1. 1. A laser thickness measurement and height measurement mechanism for a battery cell, comprising: The automatic feeding machine comprises a machine base (1), wherein a feeding conveyor (2) is arranged at the front part of a table top of the machine base (1), a discharging conveyor (3) is arranged at the rear part of the table top of the machine base (1), a pair of baffle plates (8) are symmetrically arranged on the front side and the rear side of the feeding conveyor (2) and the front side and the rear side of the discharging conveyor (3), and a supporting frame (4) is arranged on the table top of the machine base (1) between the feeding conveyor (2) and the discharging conveyor (3); The double-station synchronous conveying device is characterized in that a double-station synchronous conveying assembly (5) is arranged at the top of the supporting frame (4), and a cell thickness measuring assembly (6) and a cell height measuring assembly (7) are arranged at the bottom of the supporting frame (4); The double-station synchronous carrying assembly (5) comprises a pair of radial linear motors (51), the two radial linear motors (51) are symmetrically arranged on cross beams at the left side and the right side of the top of a supporting frame (4), driving blocks (52) are arranged at the output ends of the radial linear motors (51), a movable frame (53) is connected between the driving blocks (52), guide rails (54) are arranged at opposite sides of the radial linear motors (51), the movable frame (53) is arranged on the guide rails (54) in a sliding mode, mounting frames (55) are arranged on the cross beams at the front side and the rear side of the movable frame (53), a motor (56) is arranged on each mounting frame (55), and a belt wheel (57) is arranged at the driving end of each motor (56).
  2. 2. The laser thickness measurement and height measurement mechanism for the battery cell is characterized in that a hollow rotating shaft (58) is arranged on a first movable frame (53) beam at the rear side of each first mounting frame (55) through a bearing seat, a threaded sleeve (59) is arranged in the hollow rotating shaft (58), a second belt wheel (510) is sleeved outside the threaded sleeve (59), the first belt wheel (57) is in transmission connection with the second belt wheel (510) through a first synchronous belt (511), a screw rod (512) is spirally connected in the threaded sleeve (59), a first lifting frame (513) is arranged at the bottom of the screw rod (512), a first guide sleeve (515) is arranged at the positions, corresponding to the first guide posts (514), on the first movable frame (53) beam, and a first balancing plate (516) is arranged at the tops of the screw rod (512) and the first guide posts (514).
  3. 3. The laser thickness measurement and height measurement mechanism for the battery cell is characterized in that a plurality of first telescopic cylinders (517) are arranged at the bottoms of the first lifting frames (513) at the front side and the rear side, a first mounting seat (518) is connected to the bottoms of the first telescopic cylinders (517), telescopic rods of the first telescopic cylinders (517) downwards extend out and penetrate through the first mounting seat (518), inverted T-shaped blocks (519) are arranged at the bottom ends of the telescopic rods of the first telescopic cylinders (517), a pair of second driving blocks (520) are symmetrically arranged at the left side and the right side in the first mounting seat (518), inclined surfaces of the two second driving blocks (520) are respectively contacted with inclined surfaces at two sides of the inverted T-shaped blocks (519), springs (521) are respectively arranged between the two driving blocks (520) at the two sides and the inner wall of the first mounting seat (518), and clamps (522) are respectively connected to the bottoms of the two driving blocks (520).
  4. 4. The laser thickness measurement and height measurement mechanism for the battery cells is characterized in that the battery cell thickness measurement assembly (6) comprises a test supporting frame (61), the test supporting frame (61) is located between a feeding conveyor (2) and a discharging conveyor (3) on the table top of the base (1), a second installation frame (62) is arranged at the front part of the test supporting frame (61), a plurality of second telescopic cylinders (63) are arranged at the front side of the second installation frame (62), a third driving block (64) extends out from the telescopic rod of each second telescopic cylinder (63) towards the direction of the test supporting frame (61), springs (65) are arranged on the upper side and the lower side of the third driving block (64), and a front pressing plate (66) is connected to one end, close to the test supporting frame (61), of each second spring (65).
  5. 5. The laser thickness measurement and height measurement mechanism for the battery cells according to claim 4, wherein a plurality of guide posts II (67) are arranged on one side, close to the telescopic cylinders II (63), of each front side pressing plate (66), guide sleeves II (68) are arranged on the mounting frame II (62) corresponding to the guide posts II (67), balance plates II (69) are commonly connected to one ends, far away from the front side pressing plates (66), of the guide posts II (67), laser distance measurement sensors I (610) are arranged on the test support frame (61) corresponding to the positions of each front side pressing plate (66), and the laser distance measurement sensors I (610) are used for detecting the thicknesses of the battery cells pressed by the corresponding front side pressing plates (66).
  6. 6. The laser thickness measurement height measurement mechanism for the battery cell is characterized in that the battery cell height measurement assembly (7) comprises a mounting frame III (71), the mounting frame III (71) is located on one side, far away from a mounting frame II (62), of a test bearing frame (61) on a table top of a machine base (1), a telescopic cylinder III (72) is arranged on the mounting frame III (71), a telescopic rod of the telescopic cylinder III (72) stretches out towards the direction of the test bearing frame (61) and is connected with a movable frame II (73), a pair of guide rails II (74) are arranged on the table top of the machine base (1) between the mounting frame III (71) and the test bearing frame (61), and the movable frame II (73) is arranged on the guide rails II (74) in a sliding mode.
  7. 7. The laser thickness measurement and height measurement mechanism for the battery cell is characterized in that a pair of telescopic cylinders IV (75) are symmetrically arranged on the two sides of the moving frame II (73), the tops of telescopic rods of the two telescopic cylinders IV (75) are respectively connected with a lifting frame II (76), guide rails III (77) are vertically arranged on the moving frame II (73) on the two sides of each telescopic cylinder IV (75), the lifting frame II (76) is slidably arranged on the corresponding guide rail III (77), a plurality of mounting frames IV (78) are arranged on each lifting frame II (76), two groups of springs IV (79) are symmetrically arranged on the two sides of the top of each mounting frame IV (78), the bottoms of the two groups of springs IV (79) are connected with a lower pressing plate (710), two groups of guide rails IV (711) are vertically arranged on the top of each mounting frame IV (78), and the lower pressing plate (710) is slidably arranged on the corresponding guide rail IV (711).
  8. 8. The laser thickness measurement and height measurement mechanism for the battery cell of claim 7, wherein a mounting frame five (712) is arranged on the outer side of the test bearing frame (61), a driven belt wheel (713) is arranged on a beam of the mounting frame five (712) through a bearing seat assembly, a motor two (714) is arranged at the bottom of one side, far away from the driven belt wheel (713), of the beam of the mounting frame five (712), a driving belt wheel (715) is arranged at the driving end of the motor two (714), and the driven belt wheel (713) is in transmission connection with the driving belt wheel (715) through a synchronous belt two (716).
  9. 9. The laser thickness measurement and height measurement mechanism for the battery cells of claim 8, wherein a third moving frame (717) is connected to the second synchronous belt (716), a pair of guide rails (720) are symmetrically arranged on a fifth mounting frame (712) on the upper side and the lower side of the second synchronous belt (716), the third moving frame (717) is slidably arranged on the fifth guide rails (720), a plurality of sixth mounting frames (718) are arranged on the third moving frame (717), a second laser distance measurement sensor (719) is arranged at the bottom of each sixth mounting frame (718), and the second laser distance measurement sensor (719) is used for detecting the height of the battery cells at corresponding positions on the test bearing frame (61).
  10. 10. The laser thickness measurement and height measurement mechanism for the battery cells according to claim 1, wherein the blanking conveyor (3) is provided with a battery cell shipment detection module (31), and the battery cell shipment detection module (31) comprises an OCV tester and an internal resistance tester.

Description

Laser thickness and height measuring mechanism for battery cell Technical Field The invention relates to the technical field of battery cell production, in particular to a laser thickness measurement and height measurement mechanism for a battery cell. Background The battery core is a core energy storage unit of the battery, and in order to ensure the size consistency of the battery core, poor assembly and safety risks are avoided, and the battery core is detected through a thickness measuring and height measuring device. For example, chinese patent application number CN 202110754588. X discloses a semiconductor laser chip size thickness measuring device, which comprises a workbench, wherein a supporting frame is fixedly connected to the workbench, a pressing detection mechanism is fixedly connected to the supporting frame, a detection box is fixedly connected to the pressing detection mechanism, a plurality of groups of detection rods arrayed at equal intervals are slidingly connected to the detection box, and a distance sensor located under the detection rods is fixedly connected to the detection box for performing multipoint detection on the chip, thereby improving accuracy and efficiency of thickness and flatness detection. However, the device for measuring the chip size and thickness of the semiconductor laser has the following defects that firstly, the device can only realize the thickness measuring function, if the electric core needs to be measured, the electric core needs to be transferred to a special height measuring device for detection, the electric core is transferred and clamped repeatedly among different stations, the process circulation time is increased, the detection efficiency is reduced, secondly, the conventional device mainly adopts a single-station feeding and discharging mode, the carrying and the detection cannot be synchronously carried out, the idle waiting time is longer, the overall test beat is lower, and the requirement of high-efficiency batch production is difficult to meet. Disclosure of Invention The invention aims to provide a laser thickness measurement and height measurement mechanism for a battery cell, which aims to solve the problems in the background technology. The laser thickness measurement and height measurement mechanism for the battery cell comprises a base, wherein a feeding conveyor is arranged at the front part of a table top of the base, a discharging conveyor is arranged at the rear part of the table top of the base, a pair of baffles are symmetrically arranged on the front side and the rear side of the feeding conveyor and the front side and the rear side of the discharging conveyor, a supporting frame is arranged on the table top of the base between the feeding conveyor and the discharging conveyor, a double-station synchronous carrying assembly is arranged at the top of the supporting frame, and a battery cell thickness measurement assembly and a battery cell height measurement assembly are arranged at the bottom of the supporting frame; The double-station synchronous carrying assembly comprises a pair of radial linear motors, wherein the two radial linear motors are symmetrically arranged on cross beams on the left side and the right side of the top of a supporting frame, driving blocks I are arranged at the output ends of the radial linear motors, a moving frame I is connected between the driving blocks I, guide rails I are arranged on the opposite sides of the radial linear motors, the moving frame I is arranged on the guide rails I in a sliding mode, mounting frames I are arranged on the cross beams on the front side and the rear side of the moving frame I, a motor I is arranged on each mounting frame I, and a belt wheel I is arranged at the driving end of each motor I. By adopting the technical scheme, the machine base is an installation foundation of the integral device, the feeding conveyor is used for conveying the electric core to be detected to the carrying station, the discharging conveyor is used for conveying the detected electric core to the next process, the baffle plates on the front side and the rear side of the feeding conveyor and the discharging conveyor are used for limiting the electric core so as to prevent offset, the supporting frame provides an installation foundation for the double-station synchronous carrying assembly, the table top of the machine base provides an installation foundation for the electric core thickness measuring assembly and the telecommunication height measuring assembly, the radial linear motors on the two sides transmit power to the moving frame through the driving blocks, so that the moving frame moves to reciprocate between the feeding station, the testing station and the discharging station along the guide rail I, the mounting frame I provides an installation foundation for the motor I, and the motor I provides rotary power for the belt wheel I. Preferably, each movable frame one cross beam at the rea