Positioning assembly, clamping mechanism and wire cutting device

Abstract

The utility model relates to a positioning assembly, a clamping mechanism and a wire cutting device. The positioning assembly comprises a first clamping head and a workpiece table, the first clamping head comprises a conical table, the workpiece table comprises a sliding groove, positioning grooves matched with the conical face of the conical table are formed in the two side walls of the sliding groove, and the groove faces of the two correspondingly-arranged positioning grooves are located on the same conical face. The conical table is arranged in the sliding groove in the length direction of the sliding groove in a movable mode and arranged in the positioning groove in an up-down movable mode. Due to the fact that the concave positioning groove is formed in the side wall of the sliding groove of the workpiece table, the first clamping head is provided with the conical table, and the conical table is in conical surface fit with the positioning groove, after the first clamping head clamps the workpiece table, a workpiece on the workpiece table can be automatically centered in the front-back direction and the left-right direction, and the positioning precision is improved. In the cutting machining process, it can be guaranteed that the center of a workpiece is aligned with the center of the main roller, and the workpiece is prevented from colliding with other structures.

Description

Technical Field

[0001] This utility model relates to the field of wire cutting technology, and in particular to a positioning component, clamping mechanism and wire cutting device. Background Technology

[0002] Wire EDM technology refers to cutting a workpiece using a high-speed reciprocating motion of a cutting wire. With the development of automated multi-wire EDM technology, automated wiring technology is increasingly used. Taking the cutting of silicon rods by a slicing machine as an example, the silicon rod, mounted on the workpiece stage, is fixed to the feed unit by a clamping mechanism. The feed unit then moves towards the cutting wire mesh, thus achieving the cutting of the silicon rod.

[0003] The existing clamping mechanism includes a clamping base, a drive unit, a clamping head, and a workpiece stage. The drive unit is mounted on the clamping base, and the clamping head is connected to the output end of the drive unit. The workpiece stage includes a slide groove, in which the clamping head is slidably fitted. The bottom of the workpiece stage is used to fix the silicon rod. In use, the drive unit drives the clamping head to move vertically upward. During the movement, the side of the clamping head abuts against the inner wall of the slide groove until the upper surface of the workpiece stage contacts the clamping base, at which point the workpiece stage and the silicon rod are clamped and fixed to the clamping base. However, the existing clamping mechanism has low positioning accuracy during the clamping and fixing of the workpiece stage, and cannot guarantee that the center of the silicon rod corresponds to the center of the two cutting main rollers, reducing the cutting quality and accuracy of the slicing machine. It may even cause the silicon rod to collide with the fragment box or other structures below during the cutting process, resulting in loss. Utility Model Content

[0004] In view of the above problems, this utility model is proposed to provide a positioning component, clamping mechanism and wire cutting device that overcomes or at least partially solves the above problems. It aims to solve the problem of low positioning accuracy of workpieces after clamping in the prior art, so as to realize that the workpiece is centered in the front-back and left-right directions, thereby improving the positioning accuracy, which is beneficial to improving the cutting quality and cutting accuracy, and reducing the probability of collision.

[0005] Specifically, this utility model provides a positioning component, including:

[0006] A first clamping head, the first clamping head including a conical platform;

[0007] The workpiece stage includes a slide groove with a slot extending along its length. Both side walls of the slide groove are provided with positioning slots that mate with the conical surface of the conical stage. The slot surfaces of the two corresponding positioning slots are on the same conical surface.

[0008] The conical platform is configured to be movable within the slide along the length of the slide and movable within the positioning groove along the axial direction of the conical surface.

[0009] Optionally, at least one end of the groove extends through the workpiece stage.

[0010] Optionally, a groove is provided on the outer peripheral surface of the conical platform, and the area of ​​the conical platform that contacts the positioning groove is a mating area, and the groove connects the mating area with the space outside the mating area.

[0011] Optionally, at least a portion of the outer peripheral surface of the conical platform mates with the conical surface of the positioning groove, and the groove penetrates outward through the top surface, bottom surface, and outer peripheral surface of the conical platform.

[0012] Optionally, the outer peripheral surface of the conical platform includes a conical surface that mates with the positioning groove, and a cylindrical surface that connects to the large end of the conical surface.

[0013] Optionally, the first clamping head further includes a rod, one end of which is connected to the small end of the conical truncated cone.

[0014] Optionally, the conical truncated cone is a frustum of a cylinder or a frustum of a prism.

[0015] Optionally, the chute includes a bottom channel and a connecting portion connecting the groove opening and the bottom channel;

[0016] The positioning groove is provided on the corresponding side wall of the connecting part;

[0017] The conical platform moves to the positioning slot at least through the bottom channel.

[0018] Optionally, the extension direction of the slide is perpendicular to or parallel to the length direction of the workpiece stage, and there are at least two slides, which are arranged in parallel.

[0019] Optionally, a slot for inserting a loading / unloading trolley is provided between two adjacent chutes.

[0020] Optionally, at least two pairs of positioning grooves are provided in the slide groove, and each pair of positioning grooves is provided with the first clamping head.

[0021] Optionally, the positioning component is a positioning component for a wire cutting device.

[0022] Specifically, this utility model also provides a clamping mechanism, which includes: a clamping base; a driving unit mounted on the clamping base; and any of the above-mentioned positioning components;

[0023] The output end of the drive unit is connected to the first clamping head, and the drive unit is used to drive the workpiece table upward through the first clamping head until the workpiece table contacts the clamping base.

[0024] Optionally, it further includes a second clamping head, the second clamping head including a lifting block, the lifting block being disposed within the slide groove, the lifting block driving the workpiece table to rise and fall via the side wall of the slide groove; or,

[0025] The slide is provided with lifting grooves on both side walls that cooperate with the lifting block. The two corresponding lifting grooves define a lifting space so that the lifting block abuts against the lifting space through its upper end face and / or side face, thereby driving the workpiece table to rise and fall. The lifting block is configured to move along the bottom channel of the slide to the lifting space and is movable up and down within the lifting space.

[0026] Optionally, the lifting block is a wedge block, so that the lifting block drives the workpiece table to rise and fall by means of the side; or, the upper end surface of the lifting block is a horizontal surface for support, so that the lifting block drives the workpiece table to rise and fall by means of the upper end surface abutting against the top wall surface of the lifting space.

[0027] Optionally, the driving unit is a clamping cylinder; the workpiece table is connected to a connecting plate, which is used to connect the workpiece.

[0028] Optionally, the clamping mechanism is a clamping mechanism for a wire cutting device.

[0029] Specifically, this utility model also provides a wire cutting device, which includes any of the above-mentioned clamping mechanisms.

[0030] Optionally, the wire cutting device is a slicing machine.

[0031] In the positioning component, clamping mechanism, and wire cutting device of this utility model, since the side wall of the slide groove of the workpiece table is provided with a positioning groove recessed from the side wall, and the first clamping head has a conical platform with a conical surface fit between the conical platform and the positioning groove, during the clamping process, after the first clamping head is moved upward to clamp the workpiece table, the workpiece on the workpiece table will automatically center in the front-back and left-right directions, improving the positioning accuracy. During the cutting process, it can ensure that the center of the workpiece is aligned with the center of the main roller, improving the cutting quality and cutting accuracy, and avoiding collisions between the workpiece and other structures.

[0032] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0033] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0034] Figure 1 This is a schematic structural diagram of a clamping mechanism according to an embodiment of the present utility model;

[0035] Figure 2 This is a schematic structural diagram of a first clamping head according to an embodiment of the present utility model;

[0036] Figure 3 This is a schematic three-dimensional structural diagram of a workpiece stage according to an embodiment of the present utility model;

[0037] Figure 4 This is a schematic front view of a workpiece stage according to an embodiment of the present utility model;

[0038] Figure 5 yes Figure 4 A schematic cross-section along plane AA;

[0039] Figure 6 This is a schematic structural diagram of a second clamping head according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic structural diagram of another workpiece stage according to one embodiment of the present utility model;

[0041] Figure 8 yes Figure 7 A schematic cross-sectional view;

[0042] Figure 9 This is a schematic structural diagram of a horizontal clamping mechanism according to an embodiment of the present invention;

[0043] Figure 10 yes Figure 9 A schematic cross-sectional view;

[0044] Figure 11 yes Figure 9 A schematic structural diagram of the workpiece stage in the diagram;

[0045] Figure 12 This is a schematic three-dimensional structural diagram of a guide block according to an embodiment of the present utility model;

[0046] Figure 13 This is a schematic structural diagram of another clamping mechanism for lateral clamping according to one embodiment of the present utility model;

[0047] Figure 14 yes Figure 13 A schematic cross-sectional view.

[0048] List of reference numerals in the attached diagram:

[0049] 1. First clamping head; 11. Conical platform; 111. Conical surface; 112. Cylindrical surface; 12. Groove; 13. Rod body; 2. Workpiece table; 21. Slide groove; 211. Groove opening; 212. Bottom channel; 213. Connecting part; 22. Positioning groove; 23. Positioning space; 24. Slot; 25. Lifting groove; 26. Guide groove; 3. Clamping base; 4. Drive unit; 5. Second clamping head; 51. Lifting block; 6. Workpiece; 7. Guide block. Detailed Implementation

[0050] The following reference Figures 1 to 14 This description describes the positioning component, clamping mechanism, and wire cutting device according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0051] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Figure 1 This is a schematic structural diagram of a clamping mechanism according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figures 2 to 6 This utility model provides a clamping mechanism, including a positioning component, a clamping base 3, and a driving unit 4. The positioning component includes a first clamping head 1 and a workpiece stage 2. The driving unit 4 is mounted on the clamping base 3, and its output end is connected to the first clamping head 1. The workpiece stage 2 is used to fix a workpiece 6 below it. The driving unit 4 drives the workpiece stage 2 upward through the first clamping head 1 until the workpiece stage 2 contacts the clamping base 3 to achieve clamping of the workpiece stage 2 and the fixed workpiece 6 in the vertical direction.

[0055] It should be noted that the clamping mechanism can be used in a slicing machine. In a slicing machine, the clamping mechanism can be positioned above the cutting wire mesh and feed downwards, or below the cutting wire mesh and feed upwards. Of course, in some cases, the clamping mechanism can feed horizontally on one side of the cutting wire mesh. The following explanation uses the example of the clamping mechanism feeding downwards to illustrate its structure.

[0056] In some embodiments of this utility model, the first clamping head 1 of the positioning component includes a conical truss 11 that is smaller at the top and larger at the bottom. The upper end of the conical truss 11 can also be referred to as the small end, and the lower end can also be referred to as the large end. The workpiece stage 2 of the positioning component includes a slide groove 21, which has a slot 211 extending along its length direction, with the slot 211 facing upward. The slide groove 21 is a slide groove that is narrower at the top and wider at the bottom, or the slide groove 21 can also be a rectangular slide groove with a constriction structure. Positioning grooves 22 are provided on both the left and right side walls of the slide groove 21. The two corresponding positioning grooves 22 define a positioning space 23, and the groove surfaces of the two corresponding positioning grooves 22 are on the same conical surface, that is, the slide groove 21 passes through the positioning space 23. In other words, the groove wall of the positioning groove 22 is part of the conical surface to cooperate with the conical surface of the conical truss 11.

[0057] Since the positioning space 23 is located in the groove of the slide 21, considering installation issues, the conical platform 11 is configured to move along the length of the slide 21 within the slide 21, and the conical platform 11 is vertically movable within the paired positioning grooves 22, or positioning spaces 23. The slide 21 also includes a bottom channel 212 located at the bottom and a connecting portion 213 connecting the slot 211 and the bottom channel 212, with corresponding left and right positioning grooves 22 respectively located on the left and right side walls of the connecting portion 213.

[0058] During assembly, the conical platform 11 moves along the length of the slide groove 21 in the bottom channel 212 until it reaches the positioning space 23, i.e., the positioning groove 22. It then moves upwards, causing the conical platform 11 to abut against the conical wall of the positioning groove 22, thus achieving a conical surface fit. In other words, the conical platform 11 is configured to move along the length of the slide groove 21 within the slide groove 21 and to move along the axis of the conical surface within the positioning groove 22 to meet feeding requirements in various directions.

[0059] In some embodiments of this invention, the slide groove 21 extends through both ends of the workpiece table 2 along its length. This arrangement allows the first clamping head 1 to enter the slide groove 21 from either the front or rear end during assembly. Alternatively, the first clamping head 1 can be aligned with either end of the workpiece table 2, and the two can move relative to each other along the length of the workpiece table 2, allowing the first clamping head 1 to enter the slide groove 21 laterally. Of course, the slide groove 21 may also extend through only one end of the workpiece table 2, allowing the first clamping head 1 to enter from the open end of the slide groove 21. In other words, at least one end of the slide groove 21 extends through the workpiece table 22 to facilitate installation.

[0060] In some embodiments of this utility model, the upper surface of the workpiece stage 2 is provided with a first insertion port, which is connected to the slide groove 21 so that the conical stage 11 can enter the slide groove 21 from above.

[0061] In some embodiments of this utility model, the outer peripheral surface of the conical platform 11 includes a top surface, a bottom surface, and an outer peripheral surface located between the top and bottom surfaces. The outer peripheral surface includes a conical surface 111 and a cylindrical surface 112 connecting the lower end of the conical surface 111. A portion of the conical surface 111 engages with the positioning groove 22. The diameter of the cylindrical surface 112 is equal to the diameter of the larger end of the conical surface 111 and is less than or equal to the width of the bottom channel 212 of the slide groove 21. When the diameter of the cylindrical surface 112 is equal to the width of the bottom channel 212, the cylindrical surface 112 can be guided to move along the length of the slide groove 21 within the bottom channel 212.

[0062] In some embodiments of this utility model, the conical platform 11 is provided with a groove 12, which penetrates outward through the top surface, bottom surface, and outer peripheral surface of the conical platform 11 to connect the mating area with the space outside the mating area. That is, the area of ​​the conical platform 11 that contacts the positioning groove is the mating area, and the groove 12 connects the mating area with the space outside the mating area. The groove 12 connects the space between the conical mating area and the first clamping head 1 and the workpiece table 2, so that air can enter the conical mating area, thereby preventing the conical platform 11 and the positioning groove 22 from being in too tight a contact and difficult to separate.

[0063] In some embodiments of this utility model, the conical platform 11 includes a plurality of conical blocks evenly distributed along the circumference of the conical platform 11, and a groove 12 is provided between each two adjacent conical blocks to give the conical platform 11 a certain elasticity, so as to ensure that the conical surfaces fit tightly and can be pushed apart after fitting.

[0064] In some embodiments of this utility model, the first clamping head 1 further includes a rod 13, which is connected to the upper end of the conical platform 11. The output end of the driving part 4 is connected to the rod 13 to drive the first clamping head 1 to move up and down.

[0065] In some embodiments of this utility model, the conical platform 11 adopts a frustum structure, and correspondingly, the positioning space 23 is a conical hole-shaped space.

[0066] In some embodiments of this utility model, the conical platform 11 is a frustum, and correspondingly, the positioning space 23 is a square pyramidal hole-shaped space.

[0067] In some embodiments of this utility model, the extension direction of the slide groove 21 is parallel to the length direction of the workpiece table 2.

[0068] In order to restrict the rotational freedom of the workpiece stage 2 and increase the clamping strength and clamping uniformity of the workpiece, two pairs of positioning grooves 22 are provided in the slide groove 21 along the extension direction of the slide groove 21, thereby defining two positioning spaces 23, and the first clamping head 1 is fitted in both positioning spaces 23.

[0069] In some embodiments of this utility model, reference is made to Figure 5 , Figure 6 The clamping mechanism also includes a second clamping head 5, which includes a lifting block 51. Lifting grooves 25 are also provided on the left and right side walls of the slide 21. The two corresponding lifting grooves 25 define a lifting space, which is located in the middle of the two positioning spaces 23.

[0070] During the assembly process, the lifting block 51 moves along the bottom channel 212 of the slide groove 21 to the lifting space, and then the lifting block 51 moves upward in the lifting space until the lifting block 51 abuts against the lifting groove 25, thereby driving the workpiece table 2 to move upward.

[0071] In some embodiments of this utility model, reference is made to Figure 6 The lifting block 51 is a wedge block. The left and right sides of the wedge block are inclined surfaces, and the front and rear sides of the wedge block are vertical surfaces. Correspondingly, the groove wall of the lifting groove 25 is also inclined surface. The wedge block and the groove wall of the lifting groove 25 abut against each other through the inclined surfaces.

[0072] In some embodiments of this utility model, the lifting block 51 is a planar lifting block, with its upper surface serving as a horizontal support. The planar lifting block engages with the lifting space defined by the lifting groove 25 through its upper surface, thereby enabling the workpiece table 2 to move upward. The second clamping head 5, which uses a wedge or a planar lifting block, can be connected to the output end of the same drive unit 4 with another first clamping head 1 in the same slide groove 21, thereby enabling synchronous up-and-down movement.

[0073] In some embodiments of this utility model, reference is made to Figure 7 , Figure 8 Three pairs of positioning grooves 22 are provided in the slide groove 21 along its extension direction, defining three positioning spaces 23. Each positioning space 23 is provided with a first clamping head 1, which respectively engages with the conical surface of the corresponding positioning space 23. The three first clamping heads 1 in the same slide groove 21 are connected to the output end of the same drive unit 4 or separately connected to the output ends of three synchronous drive units 4, thereby performing synchronous up and down movement.

[0074] In some embodiments of this utility model, the lifting block 51 of the second clamping head 5 is directly guided to move in the slide groove 21. The lifting block 51 directly abuts against the slide groove 21, and the workpiece table 2 can be driven to move upward through the side wall of the slide groove 21. In this case, the second clamping head 5 and another first clamping head 1 in the same slide groove 21 can be connected to the output end of different drive units 4 to control the up and down movement respectively.

[0075] In some embodiments of this utility model, provided that the extending direction of the slide groove 21 is parallel to the length direction of the workpiece stage 2, a combination of a positioning space 23 and a lifting space can be used in one slide groove 21. Alternatively, a positioning space 23 can be combined with other limiting structures that can restrict the rotation of the workpiece stage 2 around the positioning space 23. Alternatively, the limiting structure can be omitted, and the workpiece stage 2 can be prevented from rotating by the friction generated by the workpiece stage 2 being clamped on the clamping base 3.

[0076] In some embodiments of this utility model, provided that the extension direction of the slide 21 is parallel to the length direction of the workpiece table 2, the bottom channel 212 of the slide 21 can be inserted into the loading and unloading trolley for loading or unloading.

[0077] In some embodiments of this utility model, reference is made to Figure 9 , Figure 10 , Figure 11 The extension direction of the slide groove 21 is perpendicular to the length direction of the workpiece table 2. Three slide grooves 21 are provided on one workpiece table 2, and each slide groove 21 is arranged in parallel, passing through both ends of the workpiece table 2 in the width direction. A slot 24 is provided between two adjacent slide grooves 21 for the insertion of a loading / unloading trolley for loading and unloading. Each of the three slide grooves 21 contains two first clamping heads 1 and one second clamping head 5, with the second clamping head 5 located in the middle of the two first clamping heads 1. In the extension direction of the slide groove 21, the length of the lifting block 51 of the second clamping head 5 is less than the length of the slide groove 21. The lifting block 51 of the second clamping head 5 abuts against the side wall of the slide groove 21; the conical platform 11 of the first clamping head 1 abuts against the conical groove wall (not shown in the figure) of the positioning groove 22 in the corresponding slide groove 21, thereby achieving a conical surface fit. The second clamping head 5 and the two first clamping heads 1 are respectively connected to the output ends of three synchronously moving drive units 4.

[0078] In some embodiments of this utility model, reference is made to Figure 12 , Figure 13 , Figure 14 The extension direction of the slide groove 21 is perpendicular to the length direction of the workpiece table 2. The workpiece table 2 has three slide grooves 21 arranged in parallel, and each of the three slide grooves 21 contains a first clamping head 1. A guide groove 26 is parallel to the slide grooves 21 on the workpiece table 2, and a guide groove 26 is provided between two adjacent slide grooves 21. Handles are provided at both ends of the workpiece table 2. A guide block 7 is fixed on the clamping base 3, located in the guide groove 26. The cross-section of the guide groove 26 is T-shaped, and the cross-section of the guide block 7 is the same as the cross-sectional shape of the guide groove 26. In the vertical direction, the thickness of the guide block 7 is less than the thickness of the guide groove 26; in the extension direction of the guide groove 26, the length of the guide block 7 is greater than the length of the guide groove 26. This configuration ensures that before the first clamping head 1 enters the slide groove 21, the bottom surface of the guide block 7 contacts the bottom surface of the guide groove 26 for guidance and limitation. Then, the first clamping head 1 enters the bottom channel 212 of the slide groove 21 until the first clamping head 1 reaches the position of the positioning space 23. The guide block 7 is located at the middle position in the length direction of the guide groove 26. The driving part 4 on the clamping base 3 drives the first clamping head 1 to move upward to achieve the clamping action.

[0079] In some embodiments of this utility model, the drive unit 4 is a clamping oil cylinder.

[0080] In some embodiments of this utility model, the drive unit 4 may be driven by other hydraulic drive mechanisms or linear motors, etc.

[0081] In some embodiments of this utility model, a workpiece 6, such as a silicon rod, is connected to the bottom of the workpiece stage via a resin plate. Alternatively, the workpiece 6, such as a silicon rod, is connected to the bottom of the workpiece stage via a marble slab. That is, the workpiece stage is connected to a connecting plate for connecting workpieces.

[0082] In some embodiments of this utility model, the workpiece may also be, but is not limited to, a hard and brittle material rod such as a sapphire rod or a magnetic rod.

[0083] This embodiment of the invention also provides a positioning component, which is the positioning component in any of the above embodiments, that is, the positioning component includes a first clamping head and a workpiece stage in any of the above embodiments. The positioning component of this embodiment can be used not only in the clamping mechanism in any of the above embodiments, but also in other situations requiring workpiece stage positioning.

[0084] This utility model embodiment also provides a wire cutting device, which includes a cutting wire and a clamping mechanism according to any of the above embodiments. The clamping mechanism can move relative to the cutting wire under the drive of the driving device and be cut by the cutting wire.

[0085] In some embodiments of this invention, the wire cutting device is a slicing machine, which can slice silicon rods, etc., and the clamping mechanism is used to move the silicon rods to be cut into wafers. For example, crystalline silicon is the main raw material for solar panels. Crystalline silicon rods need to undergo processes such as squaring and slicing to be made into crystalline silicon wafers for use, and the slicing process is carried out using this slicing machine.

[0086] The workpiece clamping process of the wire EDM device of this utility model is as follows: The slicing machine control terminal issues a loading command, the drive unit 4 operates, causing the first clamping head 1 and the second clamping head 5 to move downwards. A loading / unloading trolley places the workpiece table 2 and the workpiece 6 fixed below it under the clamping base 3, and pushes the workpiece table 2, causing the first clamping head 1 and the second clamping head 5 under the clamping base 3 to enter the slide groove 21 along the bottom channel 212 of the slide groove 21. The workpiece table 2 continues to move, causing the conical platform 11 of the first clamping head 1 and the lifting block 51 of the second clamping head 5 to enter the corresponding positioning space 23 and lifting space, respectively. Then, the slicing machine control terminal issues a clamping command, the drive unit 4 operates, causing the first clamping head 1 and the second clamping head 5 to move upwards, driving the workpiece table 2 and the workpiece 6 to move upwards together until the upper surface of the workpiece table 2 contacts the lower surface of the clamping base 3 and clamps it. Since the first clamping head 1 has a conical platform 11 and the side wall of the slide groove 21 is provided with an outwardly recessed positioning groove 22, the conical platform 11 and the positioning groove 22 are engaged to achieve centering of the workpiece 6 in the front-back and left-right directions.

[0087] In some embodiments of the utility model, multiple wire cutting devices are used. During operation, a 3D scanning model of the workpiece stage after the stick is attached is performed to determine the wire cutting device to be used. An automated wiring fixture is used to wire the workpiece according to its specifications. The workpiece stage is transferred to the clamping mechanism of the selected wire cutting device by a loading and unloading trolley to complete the loading. A detection robot checks whether the wire mesh and installation are suitable. If they are suitable, the wire cutting device is used for cutting.

[0088] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A positioning component, characterized in that: include: a first clamping head, the first clamping head comprising a tapered platform; A workpiece table, the workpiece table comprising a slide groove, the slide groove having a notch extending along its length direction, two side walls of the slide groove are provided with positioning grooves matching with the conical surface of the conical table, and the groove surfaces of the two correspondingly arranged positioning grooves are on the same conical surface; The conical platform is configured to be movably arranged in the slide groove along the length direction of the slide groove, and to be movably arranged in the positioning groove along the axial direction of the conical surface.

2. The positioning assembly according to claim 1, characterized in that: At least one end of the slide groove passes through the workpiece platform.

3. The positioning assembly according to claim 1, characterized in that: A groove is provided on the outer peripheral surface of the conical stage, the area of ​​the conical stage contacting the positioning groove is a matching area, and the groove connects the matching area with the space outside the matching area.

4. The positioning assembly according to claim 3, characterized in that: At least a portion of the outer circumferential surface of the conical platform cooperates with the conical surface of the positioning groove, and the groove penetrates outwardly through the top surface, the bottom surface and the outer circumferential surface of the conical platform.

5. The positioning assembly according to claim 4, characterized in that: The outer peripheral surface of the conical platform includes a conical surface matched with the positioning groove, and a cylindrical surface connected to the large end of the conical surface.

6. The positioning assembly according to claim 1, characterized in that: The first clamping head also includes a rod body, one end of which is connected to the small end of the conical platform.

7. The positioning assembly according to claim 1, characterized in that: The conical table is a truncated table or a prism table.

8. The positioning assembly according to claim 1, characterized in that: The slide groove further includes a bottom channel and a connecting portion connecting the notch and the bottom channel; The positioning grooves are arranged on the corresponding side walls of the connecting portion; The conical stage moves to the positioning groove at least through the bottom channel.

9. The positioning assembly according to claim 1, characterized in that: The extending direction of the slide groove is perpendicular to or parallel to the length direction of the workpiece platform. There are at least two slide grooves, and the slide grooves are arranged in parallel.

10. The positioning assembly according to claim 9, characterized in that: A slot for inserting a loading and unloading trolley is provided between two adjacent slide grooves.

11. The positioning assembly according to claim 1, characterized in that: At least two pairs of positioning grooves are arranged in the slide groove, and the first clamping head is arranged in each pair of positioning grooves.

12. The positioning assembly according to claim 1, characterized in that The positioning component is a positioning component used for a wire cutting device.

13. A clamping mechanism, characterized in that: include: Clamping base; A driving unit, mounted on the clamping base; as well as The positioning assembly according to any one of claims 1 to 12; The output end of the driving unit is connected to the first clamping head, and the driving unit drives the workpiece table to move upwards through the first clamping head until the workpiece table contacts the clamping base.

14. The clamping mechanism according to claim 13, characterized in that: It also includes a second clamping head, the second clamping head includes a lifting block, the lifting block is arranged in the slide slot, and the lifting block drives the workpiece platform to move up and down through the side wall of the slide slot; or, Lifting grooves cooperating with the lifting block are arranged on both side walls of the slide groove, and the two corresponding lifting grooves define a lifting space, so that the lifting block can abut and cooperate with the wall surface of the lifting space through the upper end surface and / or the side surface to drive the workpiece platform to rise and fall; the lifting block is configured to move along the bottom channel of the slide groove to the lifting space, and can be movably arranged up and down in the lifting space.

15. The clamping mechanism according to claim 14, characterized in that: The lifting block is a wedge block, so that the lifting block drives the workpiece platform to move up and down through the side of the wedge block; or, The upper end surface of the lifting block is a horizontal surface for support, so that the lifting block can abut and cooperate with the top wall surface of the lifting space through the upper end surface to drive the workpiece platform to move up and down.

16. The clamping mechanism according to claim 13, characterized in that: The driving part is a clamping cylinder; the workpiece table is connected with a connecting plate for connecting the workpiece.

17. The clamping mechanism according to claim 13, characterized in that: The clamping mechanism is a clamping mechanism for a wire cutting device.

18. A wire cutting device, characterized in that: The invention comprises the clamping mechanism according to any one of claims 13 to 17.

19. The wire cutting device according to claim 18, characterized in that: The wire cutting device is a slicer.

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