Automatic molybdenum wire clamping and shearing mechanism
By designing an automatic clamping and shearing mechanism for molybdenum wire, the problem of automatic clamping and shearing of molybdenum wire at the initial and final winding positions is solved by using a clamping group and a pushing mechanism. This achieves stable clamping and shearing of molybdenum wire and improves winding efficiency.
Patent Information
- Application Number
- CN202320899169.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-20
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2033-04-20
AI Technical Summary
Existing winding devices cannot automatically clamp the molybdenum wire at the initial and final winding positions. The molybdenum wire is not easily tensioned during cutting and is prone to loosening after cutting.
Design an automatic clamping and cutting mechanism for molybdenum wire. The mechanism employs a wire clamping assembly and a pushing mechanism. The movable block and fixed block of the wire clamping head are connected by a pin shaft. Combined with a torsion spring and a rubber sleeve, the automatic clamping and cutting of the molybdenum wire is achieved. The tensioning cylinder and the cutting cylinder are used to achieve the tensioning and cutting of the molybdenum wire.
It achieves automatic clamping of the molybdenum wire at the initial and final winding positions, and the molybdenum wire is taut and not easy to loosen during shearing, thus improving winding efficiency and stability.
Smart Images
Figure CN223946696U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a winding device, concretely relates to a molybdenum wire automatic clamping and shearing mechanism. BACKGROUND
[0002] With the demand and development of electronic technology and semiconductor industry, the precision and quality requirement of product electroplating is also higher and higher. For example, more and more products need to change from original whole gold plating to local gold plating. Electronic pins (including module pins, telephone communication module pins and earphone pins, etc.), terminal connectors (including connecting columns, PCB board level connectors and lead pins, etc.) and other connectors need to be plated with gold for the technical requirements of low impedance, low contact resistance, high wear resistance, high conductivity and high bearing current. When the pins of the above connectors are plated with gold by electroplating process, in order to improve the efficiency of plating the pins, the connectors are usually placed in rows, and the pins on each row of connectors are continuously wound with molybdenum wire by manual operation.
[0003] The existing winding device is mainly used for winding motor coil, inductor coil, square transformer, etc., including a wire feeding part and a moving mechanism for moving the wire feeding part in multiple directions. A workpiece fixing clamp is arranged below the wire feeding part. The workpiece fixing clamp is generally disc-shaped and has a plurality of circularly distributed winding columns arranged thereon. The workpiece fixing clamp is driven to rotate to continuously wind the wire. The winding columns in the above-mentioned fixed winding workpiece clamp are circularly distributed (the pins in the connector are linearly distributed), which is not suitable for winding the connector in the present application. In view of this problem, the applicant designs a winding plate which can sequentially wind the pins of multiple connectors at one time, facilitates the installation and disassembly of the connector, and can guide the winding direction of the connector and fix the end of the winding wire. The winding plate is rectangular, and the connectors are arranged in rows on the winding plate. Winding columns corresponding to the pins of the connectors are arranged at the corresponding positions of the connectors. After using the above-mentioned winding plate to assist winding, the following problems exist: after winding, when the winding plate needs to be removed, the initial position and the end position of the molybdenum wire cannot be automatically sheared, at the same time, the molybdenum wire cannot be automatically tensioned during shearing, which is not easy to shear; at the same time, after winding and shearing the molybdenum wire, how to ensure that the wire at the initial position and the end position of the molybdenum wire wound on the winding plate does not fall off. SUMMARY
[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a molybdenum wire automatic clamping and shearing mechanism, which solves the problem that the existing winding device does not clamp the initial position and the end position of the winding, it is not convenient to shear the wire at the above-mentioned two positions, and there is no mechanism to automatically shear the wire, which is prone to wire loosening after shearing.
[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0006] A molybdenum wire automatic clamping and shearing mechanism, it includes the wire clamp group that is located in the left and right sides of the winding board, each wire clamp group includes two interval settings and the clamping head of consistent installation height, two clamping heads of each wire clamp group are installed on the winding board, or one is installed on the winding board, and the other is installed outside the side end of the winding board, each clamping head includes the fixed block that is fixedly installed on the winding board or fixed on the side of the winding board and the movable block that is rotatably installed on the side of the fixed block, the movable block can be opened after being pushed by external force and supply molybdenum wire, and it is closed to clamp molybdenum wire when there is no external force pushing, a pushing mechanism corresponding to each clamping head is installed on the side close to the wire clamp group, the pushing mechanism can press the movable block and move away from the movable block after pressing, a shearing cylinder for shearing molybdenum wire is arranged between the two pushing mechanisms on the left side and the two pushing mechanisms on the right side, a cutter with the cutting edge facing molybdenum wire is installed at the end of the cylinder rod of each shearing cylinder, the cutter can abut against molybdenum wire after the cylinder rod of the shearing cylinder extends and cut molybdenum wire. In this way, at least one clamping head of the wire clamp group is installed on the winding board, so that the clamping head on the winding board can be opened after being pushed by the pushing mechanism to the movable block, molybdenum wire is placed between the two upright columns, and the upright column on the movable block returns to the original position together with the upright column on the fixed block to clamp molybdenum wire when the pushing mechanism does not apply a pushing force to the movable block. After molybdenum wire is clamped by the two clamping heads in each wire clamp group, the initial entry position of molybdenum wire and the completed winding position of molybdenum wire can form two-point clamping of molybdenum wire, and molybdenum wire can be tensioned when the cutter on the shearing cylinder extends to the direction of molybdenum wire to shear molybdenum wire, so that molybdenum wire is more easily cut off. At the same time, at least one clamping head is arranged on the winding board, which can ensure that the cut end of molybdenum wire is clamped by another clamping head after molybdenum wire is cut off, avoiding molybdenum wire from loosening. The mode of opening to pass molybdenum wire and closing to clamp molybdenum wire can meet the requirement of clamping molybdenum wire at the initial entry position and the completed position of molybdenum wire on the winding board.
[0007] Further, the movable block and the fixed block of each thread clamp are connected together through a pin shaft, and a torsion spring is sleeved on each pin shaft, and two spring legs of the torsion spring are respectively abutted on the movable block and the fixed block of the thread clamp; the movable block and the fixed block of each thread clamp comprise a clamping part and a pressing part, the clamping part and the pressing part are respectively located on the left and right sides of the pin shaft, an upright column is arranged at the end of the clamping part of the movable block and the clamping part of the fixed block, and a rubber sleeve capable of rotating under external force is sleeved on each upright column; when each movable block is pressed by external force, the two upright columns on the clamping part of each thread clamp are opened to form a gap for the molybdenum wire to pass through, and when each movable block is not pressed by external force, the two upright columns on the clamping part of each thread clamp are in a closed state to clamp the molybdenum wire. In this way, the movable block and the fixed block of each thread clamp are rotatably connected through the pin shaft, and the torsion spring can satisfy the automatic return of the movable block after rotation without external force, thereby forming clamping of the molybdenum wire. The upright column of the clamping part is sleeved with the rubber sleeve, and the rubber sleeve has elasticity to well clamp the molybdenum wire after the upright column is closed, so that the molybdenum wire cannot be loosened. At the same time, the rubber sleeve can rotate under external force, thereby not affecting the winding of the molybdenum wire.
[0008] Further, the pressing mechanism is a pressing cylinder, and the cylinder rod of each pressing cylinder corresponds to the pressing part of the corresponding thread clamp. In this way, the pressing cylinder has small volume, and the cylinder rod can be extended and retracted to satisfy the pressing and release of the movable block. Specifically, after the cylinder rod is extended outward, the movable block is pressed, and after the cylinder rod is retracted, the movable block is no longer pressed. The pressing part of the cylinder rod corresponds to the pressing part of the movable block, so that the cylinder rod can accurately align the pressing part of the movable block to press the pressing part.
[0009] Further, the pressing cylinder and the shearing cylinder are installed on a movable cross plate, the movable cross plate is connected with a pushing mechanism, and the movable cross plate can move forward and backward and be positioned under the driving of the pushing mechanism. In this way, the movable cross plate can move under the driving of the pushing mechanism, so that the pressing cylinder and the shearing cylinder installed thereon are close to or away from the thread clamp. The movable cross plate can drive multiple pressing cylinders and shearing cylinders to move synchronously at one time, so that the stroke of the cylinder rod in the cylinder is effectively shortened.
[0010] Further, the pushing mechanism is a pushing cylinder, and the end of the cylinder rod of the pushing cylinder is fixedly connected with the movable cross plate. In this way, the pushing mechanism adopts the pushing cylinder, so that the control is flexible and convenient. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the molybdenum wire automatic clamping and shearing mechanism in the embodiment;
[0012] Figure 2A cross-sectional structure schematic diagram of the automatic clamping and shearing mechanism of the molybdenum wire in the embodiment;
[0013] Figure 3 A front view of the automatic clamping and shearing mechanism of the molybdenum wire in the embodiment;
[0014] Figure 4 An enlarged structure schematic diagram of the wire clamping head in the embodiment. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.
[0016] It should be noted that similar reference numerals and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings. In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed during use, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0017] For example, Figures 1-4As shown, the molybdenum wire automatic clamping and shearing mechanism provided by the embodiment comprises a wire clamping group on the left and right sides of the winding plate 6, each wire clamping group comprises two clamping heads 7 which are arranged at intervals and have the same installation height, one of the two clamping heads 7 of each wire clamping group is installed on the winding plate 6, and the other is installed outside the side end of the winding plate 6 (in the specific implementation, both can be installed on the winding plate 6, one of which is arranged close to the winding column, and the other is close to the outer edge of the winding plate 6, or is fixed on the side end of the winding plate 6 through a support); each clamping head 7 comprises a fixed block 72 fixedly installed on the winding plate 6 or on one side of the winding plate 6 and a movable block 71 rotatably installed on one side of the fixed block 72, the movable block 71 can be opened under the extrusion of an external force to allow the molybdenum wire to pass through, and is closed to clamp the molybdenum wire when there is no external force extrusion; a pushing mechanism corresponding to each clamping head 7 is installed on the side close to the wire clamping group, the pushing mechanism can press the movable block 71 and move away from the movable block 71 after pressing; a shearing cylinder 4 for shearing the molybdenum wire is arranged between the two pushing mechanisms on the left side and between the two pushing mechanisms on the right side, a cutter 5 with a cutting edge facing the molybdenum wire is installed at the end of the cylinder rod of each shearing cylinder 4 (in the embodiment, the cutter 5 is vertically arranged, and in the specific arrangement, it can also be arranged obliquely, but the shearing effect will be slightly poorer), the cutter 5 can abut against the molybdenum wire after the cylinder rod of the shearing cylinder 4 is extended and cut the molybdenum wire. In the embodiment, one of the wire clamping groups is in the initial winding position, and the other is in the completed winding position, and the two wire clamping groups are arranged symmetrically about the central axis of the winding plate 6. After the wire clamping group is used, the molybdenum wire is clamped by two points and has a certain tension after clamping, which can effectively solve the problem that the molybdenum wire cannot be sheared conveniently due to the lack of tension at the shearing position, and at the same time, at least two are arranged on the winding plate 6 corresponding to the position of the molybdenum wire to be sheared, so that the two ends of the molybdenum wire after shearing can be clamped correspondingly, thereby avoiding the loosening of the molybdenum wire after shearing.
[0018] As Figure 2 、 Figure 4As shown, the rotation and return between the movable block 71 and the fixed block 72 are achieved through the following structure: the movable block 71 and the fixed block 72 of each wire clamping head 7 are connected together by a pin 75, and a torsion spring 76 is sleeved on each pin 75. The two spring legs of the torsion spring 76 respectively abut against the movable block 71 and the fixed block 72 of the wire clamping head 7; each movable block 71 and the fixed block 72 of each wire clamping head 7 includes a clamping part and a pushing part, and the clamping part and the pushing part are respectively located on the pin 75. On both sides, at the end of the clamping part of the movable block 71 and the clamping part of the fixed block 72, there is a column 73. Each column 73 is fitted with a rubber sleeve 74 that can rotate under external force. When each movable block 71 is pushed by external force, the two columns 73 on each wire-cutting head clamping part open to form a gap for the molybdenum wire to pass through. When each movable block 71 is not pushed by external force, the two columns 73 on each wire-cutting head clamping part are closed to clamp the molybdenum wire. In this way, the movable block 71 and the fixed block 72 of each wire-cutting head 7 are rotatably connected by a pin 75. The torsion spring 76 can satisfy the requirement that after the movable block 71 rotates, it automatically returns to its original position without external force to clamp the molybdenum wire. The rubber sleeve 74 fitted on each column 73 of the clamping part has a certain elasticity and can clamp the molybdenum wire well after the column 73 is closed, ensuring that the molybdenum wire will not loosen. Meanwhile, the rubber sleeve 74 can rotate under external force, so it will not affect the winding of the molybdenum wire.
[0019] like Figure 1 As shown, the pressing mechanism includes four spaced-apart pressing cylinders 3, each with its cylinder rod corresponding to a pressing part of the corresponding wire clamp 7. This design allows the pressing cylinders 3 to be small in size and their cylinder rods to extend and retract, satisfying both pressing and releasing the moving block 71. Specifically, when the cylinder rod extends outward, it presses the moving block 71; when it retracts, it stops pressing. The cylinder rod's alignment with the pressing part of the moving block 71 ensures precise alignment and pressure application.
[0020] In order to shorten the stroke of the pushing and pressing cylinder 3 and make it adapt to the pushing and pressing distance, the pushing and pressing cylinder 3 and the shearing cylinder 4 are both installed on a movable cross plate 2, the movable cross plate 2 is connected with a pushing mechanism and can move forward and backward and be positioned under the driving of the pushing mechanism, and the pushing mechanism is installed on the back plate of the winding device. The pushing mechanism is a pushing cylinder 8, and the cylinder rod end of the pushing cylinder 8 is fixedly connected with the movable cross plate 2. In this way, the movable cross plate 2 can move under the driving of the pushing mechanism, so that the pushing and pressing cylinder 3 and the shearing cylinder 4 installed thereon can approach or move away from the wire clamp 7. The arrangement of the movable cross plate 2 can drive multiple pushing and pressing cylinders 3 and shearing cylinders 4 to move synchronously at one time, and the stroke of the cylinder rod in the above-mentioned cylinders can be effectively shortened. The pushing mechanism adopts the pushing cylinder 8, and the control is flexible and convenient.
[0021] In order to facilitate the fixing of the pushing cylinder and form the support for the movable cross plate 2 at the same time, the pushing cylinder is fixedly installed on the base vertical plate 1 of the winding device, and the cylinder rod of the pushing cylinder penetrates through the base vertical plate.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the technical solutions. Those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A molybdenum wire automatic clamping and cutting mechanism; characterized in that, Each clamping group comprises two clamping heads which are arranged at intervals and have the same installation height, and each clamping head is installed on the winding plate or one of the clamping heads is installed on the winding plate and the other is installed outside the side end of the winding plate. A pushing mechanism corresponding to each clamping head is installed on the side close to the clamping group, and the pushing mechanism can press the movable block and move away from the movable block after pressing.
2. The automatic molybdenum wire clamping and cutting mechanism according to claim 1, characterized in that, A shearing cylinder for shearing the molybdenum wire is arranged between the two pushing mechanisms on the left side and between the two pushing mechanisms on the right side, and a cutter with a blade facing the molybdenum wire is installed at the end of the cylinder rod of each shearing cylinder, and the cutter can abut against the molybdenum wire after the cylinder rod of the shearing cylinder is extended and cut off the molybdenum wire.
3. The automatic molybdenum wire clamping and cutting mechanism according to claim 2, characterized in that, The movable block and the fixed block of each clamping head are connected through a pin shaft, and a torsion spring is sleeved on each pin shaft, and the two spring legs of the torsion spring abut against the movable block and the fixed block of the clamping head.
4. The automatic molybdenum wire clamping and cutting mechanism according to claim 3, characterized in that, The movable block and the fixed block of each clamping head comprise a clamping part and a pushing part, and the clamping part and the pushing part are respectively arranged on the left side and the right side of the pin shaft, and a stand is arranged at the end of the clamping part of the movable block and the clamping part of the fixed block, and a rubber sleeve capable of rotating under the action of external force is sleeved on each stand.
5. The automatic molybdenum wire clamping and cutting mechanism according to claim 4, characterized in that, When each movable block is pressed by external force, the two stands on the clamping part of each clamping head are opened to form a gap for the molybdenum wire to pass through, and when each movable block is not pressed by external force, the two stands on the clamping part of each clamping head are closed to clamp the molybdenum wire. The pushing mechanism is a pushing cylinder, and the cylinder rod of each pushing cylinder corresponds to the pushing part of the corresponding clamping head. The pushing cylinder and the shearing cylinder are installed on a movable cross plate, and the movable cross plate is connected with a pushing mechanism and can move forward and backward and be positioned under the driving of the pushing mechanism. The pushing mechanism is a pushing cylinder, and the cylinder rod of each pushing cylinder corresponds to the pushing part of the corresponding clamping head. The pushing cylinder and the shearing cylinder are installed on a movable cross plate, and the movable cross plate is connected with a pushing mechanism and can move forward and backward and be positioned under the driving of the pushing mechanism. The pushing mechanism is a pushing cylinder, and the cylinder rod of each pushing cylinder corresponds to the pushing part of the corresponding clamping head.