PIN rod feeding mechanism

Abstract

The utility model discloses a PIN bar feeding mechanism which comprises a material frame assembly, a jacking assembly and a feeding mechanical arm assembly, the material frame assembly comprises a material box used for storing PIN bars, the material box is of a funnel-shaped structure, and an opening is formed in the bottom of the material box; the jacking assembly comprises a top plate and a jacking unit used for driving the top plate to move up and down, the top plate is inserted into the opening, a limiting groove used for containing one PIN rod is formed in the top of the top plate, and when one PIN rod exists in the limiting groove, the jacking unit drives the top plate to move upwards till the PIN rod is located at the material taking position; the feeding mechanical arm assembly comprises a clamp, a first power unit and a second power unit, the first power unit is used for driving the clamp to be opened and closed, and the second power unit is used for driving the clamp to move to the tail coil station from the material taking station. The automatic material taking and feeding device is simple in structure, can automatically, efficiently and reliably take and feed the PIN rods, and reduces the time and cost of manual intervention.

Description

Technical Field

[0001] The utility model relates to the technical field of electric core processing, in particular to a PIN rod feeding mechanism. Background Art

[0002] The wound battery cell is made by winding with a winding device, wherein a general winding method is to use a removable winding needle, use the winding needle on the winding device as the base shaft to wind the substrate until the cell is formed, and then pull out the winding needle. Another winding method is to use a core shaft, iron the diaphragm on the core shaft, and the core shaft remains in the cell after the winding is completed. In the above two winding methods, the winding needle / core shaft are both split structures, that is, the winding needle is divided into an upper winding needle and a lower winding needle, and both are fixed on the winding main drive mechanism; the winding main drive is provided with a winding station and a tail winding station, and the two are interchangeable and used together. However, the existing cylindrical core shaft (using a PIN rod, refer to Figure 1 The feeding device of the PIN rod (with an inner hole) is extremely complicated, and how to automatically, efficiently and safely take and load the material to the mandrel in preparation for the implementation of battery cell winding is an urgent problem to be solved. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a PIN rod feeding mechanism, which can automatically, efficiently and reliably retrieve and feed PIN rods, and has a simple structure and can complete automatic feeding and supply, thereby reducing the time and cost of manual intervention.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A PIN rod feeding mechanism, comprising:

[0006] A material frame assembly, the material frame assembly comprising a material box for storing PIN sticks, the material box being a funnel-shaped structure, and having an opening at the bottom of the material box;

[0007] A lifting assembly, the lifting assembly comprising a top plate and a lifting unit for driving the top plate to move up and down, the top plate being inserted into the opening, a limiting groove for accommodating a PIN rod being provided on the top of the top plate, and when a PIN rod is in the limiting groove, the lifting unit drives the top plate to move upward so that the PIN rod is in a material taking position;

[0008] The feeding robot assembly includes a clamp, a first power unit and a second power unit. The first power unit is used to drive the clamp to open and close, and the second power unit is used to drive the clamp to move from the material picking position to the tail roll position.

[0009] As a further improvement of the above technical solution, the lifting unit includes a lifting cylinder, a connecting plate is provided at the movable end of the lifting cylinder, and the lifting plate is fixedly connected to the connecting plate.

[0010] As a further improvement of the above technical solution, the limiting groove on the top plate is a V-shaped groove.

[0011] As a further improvement of the above technical solution, the first power unit includes a finger cylinder and a finger cylinder fixing plate, the finger cylinder fixing plate is fixedly connected to the movable end of the second power unit, and the clip is arranged at the movable end of the finger cylinder.

[0012] As a further improvement of the above technical solution, the second power unit includes a long cylinder and a long cylinder mounting plate, and the finger cylinder fixing plate is fixedly connected to the movable end of the long cylinder.

[0013] As a further improvement of the above technical solution, the second power unit also includes a guide structure, which includes a guide shaft, a limit plate and a vertical plate. The guide shaft is connected to the limit plate and the vertical plate. A finger cylinder connecting plate is slidably sleeved on the guide shaft. The finger cylinder is fixedly connected to the finger cylinder connecting plate through a finger cylinder fixing plate, and the finger cylinder connecting plate is fixedly connected to the movable end of the long cylinder.

[0014] As a further improvement of the above technical solution, the movable end of the long cylinder is connected to the finger cylinder connecting plate through a double-acting cylinder, and the front and rear ends of the double-acting cylinder each have a movable end, one movable end of the double-acting cylinder is connected to the movable end of the long cylinder, and the other movable end of the double-acting cylinder is connected to the finger cylinder connecting plate.

[0015] As a further improvement of the above technical solution, a cylinder connecting plate is provided on the double-acting cylinder, a pressure plate is provided on the finger cylinder connecting plate, a guide column is provided on the cylinder connecting plate, and the guide column slides through the pressure plate.

[0016] As a further improvement of the above technical solution, the PIN rod feeding mechanism also includes a positioning component, which includes an optical fiber sensor and a positioning unit. The optical fiber sensor is used to sense and identify the spatial position of the PIN rod at the material collection position, and the positioning unit is used to drive the PIN rod to adjust to a standard posture.

[0017] As a further improvement of the above technical solution, the positioning unit includes an origin plug, a positioning cylinder and a swing cylinder. A baffle is provided on the material box, and the baffle is arranged opposite to the origin plug. The swing cylinder is used to drive the origin plug to rotate to adjust the direction of the inner hole of the PIN rod. The positioning cylinder is used to drive the origin plug to be inserted into the inner hole of the PIN rod and push the PIN rod to move until the PIN rod contacts the baffle.

[0018] The beneficial effects of the utility model are as follows: when the PIN rod is about to be loaded, the PIN rod assembly is controlled to operate, the lifting cylinder is retracted from the extended position, driving the top plate to start moving upward from the funnel-shaped material box opening, and the V-groove on the upper end of the top plate quickly lifts a PIN rod and continues to lift it to the material taking position. At this time, the optical fiber sensor of the positioning assembly detects that a PIN rod has been placed at the material taking position, and the positioning cylinder drives the origin plug to one side of the PIN rod, and the swing cylinder quickly performs a micro-swing, so that the origin plug is quickly aligned with the inner hole of the upper PIN rod to achieve the origin positioning of the PIN rod; wherein, the origin plug matches the shape of the inner hole of the PIN gang, because a baffle is provided above the material box and is opposite to the origin plug, and the existence of the V-groove, when the origin plug is adapted to the PIN rod, the PIN rod will not move to a large position and is still on the set axis of the manipulator's material taking position; the PIN rod After positioning, the top plate is reset, the finger cylinder drives the clamp to open, the double-acting cylinder drives the clamp on the finger cylinder to move horizontally to the material picking position, and the finger cylinder drives the clamp to close to clamp the positioned PIN rod. At the same time, the origin plug is reset (withdrawal of the positioning support for the PIN rod) to complete the pre-loading operation of the PIN rod; when the tail winding station needs to perform the PIN rod loading operation, the long cylinder drives the PIN rod clamped by the clamp on the finger cylinder to move rapidly horizontally to the PIN rod loading position of the tail winding station, and then the long cylinder stops moving, and waits for the top head of the top mechanism to quickly complete the support and fixation of the PIN rod, the finger cylinder opens, and the long cylinder starts to reset; repeat the above operation to load the next PIN rod, and so on; it can automatically, efficiently and reliably pick up and load PIN rods (core shafts), reducing the time and cost of manual intervention and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the PIN rod in the utility model;

[0021] Figure 2 It is a structural schematic diagram of the PIN rod feeding mechanism in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the material frame assembly in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the jacking assembly in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the positioning component in the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the feeding manipulator assembly in the utility model. Figure 1 ;

[0026] Figure 7 This is a schematic diagram of the structure of the feeding manipulator assembly in the utility model. Figure 2 ;

[0027] Figure 8 This is a schematic diagram of the structure of the feeding manipulator assembly in the utility model. Figure 3 .

[0028] Figure numerals: 1, PIN rod; 2, material frame assembly; 21, material box; 22, material box bracket; 3, lifting assembly; 31, top plate; 32, connecting plate; 33, lifting cylinder; 34, lifting cylinder fixing plate; 4, positioning assembly; 41, positioning cylinder fixing plate; 42, positioning cylinder; 43, swing cylinder fixing plate; 44, swing cylinder; 45, origin plug; 46, optical fiber sensor; 47, baffle; 5, feeding manipulator assembly Parts; 51, long cylinder fixing plate; 52, long cylinder; 53, guide structure; 531, guide shaft; 532, limit plate; 533, vertical plate; 534, first linear bearing; 54, double-acting cylinder; 541, cylinder connecting plate; 542, guide column; 543, second linear bearing; 55, finger cylinder connecting plate; 551, pressure plate; 56, finger cylinder fixing plate; 57, finger cylinder; 58, clamp; 59, connector. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. For example, the fixed connection / installation can be connected by screws, bolts and other accessories, or it can be directly connected by welding, bonding and other methods. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0030] Reference Figure 2-Figure 8 A PIN rod feeding mechanism includes a material frame assembly 2, a lifting assembly 3, a positioning assembly 4 and a feeding manipulator assembly 5. The material frame assembly 2 includes a material box 21 and a material box bracket 22 (the material box 21 is installed on the wall plate of the winding machine through the material box bracket 22). The material box 21 is used to store a PIN rod 1 (in this embodiment, the PIN rod 1 refers to a round core rod inside the battery cell. The structure of the PIN rod 1 refers to Figure 1 ), the material box 21 is a funnel-shaped structure, and the bottom of the material box 21 has an opening; the lifting assembly 3 includes a top plate 31 and a lifting unit for driving the top plate 31 to move up and down, the top plate 31 is inserted into the opening, and a limiting groove for accommodating a PIN rod 1 is provided on the top of the top plate 31, and the limiting groove is a V-shaped groove. Since the material box 21 is a funnel-shaped structure, it is convenient for the automatic loading of the PIN rod 1. The PIN rod 1 can automatically move toward the opening under the action of gravity, so as to enter the limiting groove on the top plate 31, so that the top plate 31 can take a PIN rod 1, and the lifting unit drives the top plate 31 that takes the PIN rod 1 to move upward until The PIN rod 1 is transported to the material picking position (the position where the loading robot assembly 5 takes away the PIN rod 1); the loading robot assembly 5 includes a clamp 58, a first power unit and a second power unit, the first power unit drives the clamp 58 to open and close to clamp or release the PIN rod 1, when the PIN rod 1 is transported to the material picking position, the positioning assembly 4 locates the origin of the PIN rod 1, and then the second power unit drives the clamp 58 to move to the material picking position, after the clamp 58 clamps the PIN rod 1, the second power unit drives the PIN rod 1 to move to the tail winding station to realize the loading of the PIN rod 1; then each assembly is reset to load the next PIN rod 1.

[0031] In a specific embodiment, refer to Figure 4 The lifting unit includes a lifting cylinder 33 and a lifting cylinder fixing plate 34 (the fixed end of the lifting cylinder 33 is installed on the wall panel of the winding machine through the lifting cylinder fixing plate 34), the movable end (piston rod) of the lifting cylinder 33 is fixedly connected with a connecting plate 32, and the top plate 31 is fixedly connected to the connecting plate 32. The piston rod of the lifting cylinder 33 is vertically downward, so that when the lifting cylinder 33 is extended, the top plate 31 is driven to move downward, and when the lifting cylinder 33 is retracted, the top plate 31 is driven to move upward.

[0032] In a specific embodiment, refer to Figure 5The positioning assembly 4 includes an optical fiber sensor 46 and a positioning unit. The optical fiber sensor 46 is used to sense and identify the spatial position of the PIN rod 1 located at the material taking position. Specifically, the positioning unit includes an origin plug 45, a positioning cylinder 42, a positioning cylinder fixing plate 41, a swing cylinder 44 and a swing cylinder fixing plate 43 (the positioning cylinder 42 is installed on the wall panel of the winding machine through the positioning cylinder fixing plate 41), the swing cylinder 44 is fixedly installed on the piston rod of the positioning cylinder 42 through the swing cylinder fixing plate 43, and the optical fiber sensor 46 is installed on the swing cylinder fixing plate 43 through the sensor fixing plate; the shape of the origin plug 45 matches the shape of the inner hole of the PIN rod 1, such as hexagonal, pentagonal, etc., and a baffle 47 is provided on the material box 21. The sheet 47 is arranged opposite to the origin plug 45. When the top plate 31 moves to the material picking position with the PIN rod 1, the positioning cylinder 42 drives the origin plug 45 to move toward the PIN rod 1. At the same time, the swing cylinder 44 drives the origin plug 45 to rotate, so that the direction of the side of the origin plug 45 is the same as the direction of the inner hole of the PIN rod 1. Then the positioning cylinder 42 continues to drive the origin plug 45 to insert into the inner hole of the PIN rod 1, and pushes the PIN rod 1 to move until the PIN rod 1 contacts the baffle 47. Finally, the swing cylinder 44 drives the origin plug 45 to rotate again to adjust the direction of the inner hole of the PIN rod 1. In this way, the PIN rod 1 is positioned at the origin, which is convenient for the feeding robot assembly 5 to pick up materials. In addition, it is also convenient for the top mechanism to directly fix the PIN rod 1 after the PIN rod 1 is fed to the tail winding station.

[0033] In a specific embodiment, refer to Figure 6 , Figure 7 and Figure 8The first power unit includes a finger cylinder 57 and a finger cylinder fixing plate 56. The clamp 58 is arranged at the movable end of the finger cylinder 57. The finger cylinder 57 drives the clamp 58 to open and close to clamp or release the PIN rod 1. The second power unit includes a long cylinder 52, a long cylinder mounting plate 51 and a guide structure 53. The guide structure 53 includes a guide shaft 531, a limit plate 532 and a vertical plate 533. The guide shaft 531 is connected to the limit plate 532 and the vertical plate 533. A first linear bearing 534 is arranged between the guide shaft 531 and the vertical plate 533 (the vertical plate 533 is fixedly installed on the wall panel of the winding machine). The long cylinder 52 is installed on the vertical plate 533 through the long cylinder mounting plate 51, thereby realizing the fixed installation of the long cylinder 52. A finger cylinder connecting plate 55 is slidably sleeved on the guide shaft 531, and the finger cylinder 57 is fixedly connected to the finger cylinder connecting plate 55 through the finger cylinder fixing plate 56. The finger cylinder connecting plate 55 is fixedly connected to the movable end of the long cylinder 52. When the long cylinder 52 is extended or retracted, it drives the finger cylinder connecting plate 55 to slide on the guide shaft 531, thereby driving the PIN rod 1 to move from the material taking position to the tail winding position. The guide shaft 531 is used to improve the stability of the long cylinder 52 when driving the finger cylinder 57 and the clamp 58 to move.

[0034] Furthermore, the movable end of the long cylinder 52 is connected to the finger cylinder connecting plate 55 via a double-acting cylinder 54, and the front and rear ends of the double-acting cylinder 54 each have a movable end, one movable end of the double-acting cylinder 54 is coaxially connected to the movable end of the long cylinder 52 via a connecting head 59, and the other movable end of the double-acting cylinder 54 is connected to the finger cylinder connecting plate 55; a cylinder connecting plate 541 is provided on the double-acting cylinder 54, a pressure plate 551 is provided on the finger cylinder connecting plate 55, a guide column 542 is provided on the cylinder connecting plate 541, the guide column 542 slides through the pressure plate 551, and a second linear bearing 543 is provided between the guide column 542 and the pressure plate 551. When the long cylinder 52 is extended or retracted, it drives the double-acting cylinder 54, the finger cylinder connecting plate 55, the finger cylinder 57 and the clamp 58 to move a long distance. When the clamp 58 moves to the material picking position, the double-acting cylinder 54 drives the finger cylinder connecting plate 55 to move on the guide shaft 531 and the guide column 542, thereby driving the finger cylinder 57 and the clamp 58 to perform fine-tuning actions, so that the clamp 58 can quickly and accurately complete the clamping of the PIN rod 1 located at the material picking position.

[0035] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A PIN rod feeding mechanism, characterized in that: include: A material frame assembly, the material frame assembly comprising a material box for storing PIN sticks, the material box being a funnel-shaped structure, and having an opening at the bottom of the material box; A lifting assembly, the lifting assembly comprising a top plate and a lifting unit for driving the top plate to move up and down, the top plate being inserted into the opening, a limiting groove for accommodating a PIN rod being provided on the top of the top plate, and when a PIN rod is in the limiting groove, the lifting unit drives the top plate to move upward so that the PIN rod is in a material taking position; The feeding robot assembly includes a clamp, a first power unit and a second power unit. The first power unit is used to drive the clamp to open and close, and the second power unit is used to drive the clamp to move from the material picking position to the tail roll position.

2. A PIN rod feeding mechanism according to claim 1, characterized in that: The lifting unit comprises a lifting cylinder, a connecting plate is arranged at the movable end of the lifting cylinder, and the lifting plate is fixedly connected to the connecting plate.

3. A PIN rod feeding mechanism according to claim 2, characterized in that: The limiting groove on the top plate is a V-shaped groove.

4. A PIN rod feeding mechanism according to claim 3, characterized in that: The first power unit comprises a finger cylinder and a finger cylinder fixing plate, the finger cylinder fixing plate is fixedly connected to the movable end of the second power unit, and the clip is arranged at the movable end of the finger cylinder.

5. A PIN rod feeding mechanism according to claim 4, characterized in that: The second power unit comprises a long cylinder and a long cylinder mounting plate, and the finger cylinder fixing plate is fixedly connected to the movable end of the long cylinder.

6. A PIN rod feeding mechanism according to claim 5, characterized in that: The second power unit also includes a guide structure, which includes a guide shaft, a limit plate and a vertical plate. The guide shaft is connected to the limit plate and the vertical plate. A finger cylinder connecting plate is slidably sleeved on the guide shaft. The finger cylinder is fixedly connected to the finger cylinder connecting plate through a finger cylinder fixing plate. The finger cylinder connecting plate is fixedly connected to the movable end of the long cylinder.

7. A PIN rod feeding mechanism according to claim 6, characterized in that: The movable end of the long cylinder is connected to the finger cylinder connecting plate via a double-acting cylinder. The front and rear ends of the double-acting cylinder each have a movable end. One movable end of the double-acting cylinder is connected to the movable end of the long cylinder, and the other movable end of the double-acting cylinder is connected to the finger cylinder connecting plate.

8. A PIN rod feeding mechanism according to claim 7, characterized in that: The double-acting cylinder is provided with a cylinder connecting plate, the finger cylinder connecting plate is provided with a pressing plate, the cylinder connecting plate is provided with a guide column, and the guide column slides through the pressing plate.

9. A PIN rod feeding mechanism according to claim 1, characterized in that: It also includes a positioning component, an optical fiber sensor and a positioning unit. The optical fiber sensor is used to sense and identify the spatial position of the PIN rod located at the material extraction position, and the positioning unit is used to drive the PIN rod to adjust to a standard posture.

10. A PIN rod feeding mechanism according to claim 9, characterized in that: The positioning unit includes an origin plug, a positioning cylinder and a swing cylinder. A baffle is provided on the material box, and the baffle is arranged opposite to the origin plug. The positioning cylinder is used to drive the origin plug to be inserted into the inner hole of the PIN rod, and transport the PIN rod to the origin position to contact the baffle. The swing cylinder is used to drive the origin plug to rotate to adjust the direction of the inner hole of the PIN rod.

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