Silicon rod guillotine shear capable of cutting off freely

Abstract

The utility model relates to a silicon rod guillotine shear capable of cutting off freely, which comprises a machine base, a workpiece supporting table and a cutting device, the cutting device comprises a cutting frame and a linear cutting unit, the linear cutting unit can move in the Y-axis direction and the Z-axis direction, the workpiece supporting table comprises a fixed supporting table and a floating supporting table, and the fixed supporting table comprises a fixed frame and a movable frame. The movable frame is detachably connected to the upper side of the fixed frame, and the movable frame is provided with a positioning notch for positioning a silicon rod; the floating supporting table comprises a lifting mechanism and a supporting wheel set, the supporting wheel set comprises a supporting plate and a plurality of supporting wheels, the supporting plate is fixed to the top end of the lifting mechanism, and the movable frame is provided with a through hole for the supporting wheels to pass through when moving upwards. The lifting mechanism is used for driving the supporting wheel set to upwards pass through the through hole so that the supporting wheel set can initially support and position the silicon rod. In the cutting process, the resin block is used as a consumable to support the silicon rod, and the requirement for cutting off the silicon rod at any length position is met under the condition that cutting of the silicon rod is not affected.

Description

Technical Field

[0001] This utility model relates to the field of diamond wire cutting machines, specifically to a silicon rod cutting machine that can be freely cut. Background Technology

[0002] Diamond wire cutting machines are widely used for cutting various metal and non-metal composite materials, such as ceramics, glass, rocks, gemstones, jade, monocrystalline silicon, and polycrystalline silicon. They are particularly suitable for cutting various brittle crystals that are high in hardness, high in value, and easily broken. For example, the utility model patent CN205631033U discloses a single-segment silicon rod cutting machine, which cuts a silicon rod into multiple single-segment silicon rod segments of different sizes through multiple cuts by a single-segment wire cutting unit. The silicon rod conveying table includes a roller assembly for carrying the silicon rod to be cut and driving the multiple single-segment silicon rod segments after cutting to transport them axially, as well as a motor assembly for controlling the roller assembly. The roller assembly is divided into multiple roller assembly sections according to the silicon rod segments being cut. The patent claims that silicon rods can be cut to any set size. However, this actually depends on the support points of the silicon rod on the roller assembly. The silicon rod needs to be placed according to the cut size, and the cutting point can only be located between two adjacent support points. Once the silicon rod is placed, it cannot be cut at any point. For example, it cannot be cut at the roller of the roller assembly. Otherwise, the roller will be damaged or the diamond wire will be damaged when the diamond wire cuts the roller. Utility Model Content

[0003] The purpose of this invention is to provide a silicon rod cutting machine that can be freely cut, allowing the silicon rod to be cut to the required length at any point after it has been placed.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A silicon rod cutting machine that can be freely cut includes a base, a workpiece support table, and a cutting device. The cutting device includes a cutting frame and a wire cutting unit. The wire cutting unit can move in the Y-axis and Z-axis directions. The workpiece support table includes a fixed support table and a floating support table. The fixed support table includes a fixed frame and a movable frame. The movable frame is detachably connected to the upper side of the fixed frame. The movable frame has a positioning slot for positioning the silicon rod during the processing.

[0006] The floating support platform includes a lifting mechanism and a support wheel assembly. The support wheel assembly includes a support plate and several support wheels. The support plate is fixed to the top of the lifting mechanism. The movable frame has a through hole for the support wheels to pass through when they move upward. The lifting mechanism is used to drive the support wheel assembly upward through the through hole so that the support wheel assembly provides initial support and positioning for the silicon rod.

[0007] Furthermore, during the silicon rod processing, the lifting mechanism drives the support wheel assembly to move downwards to disengage from the movable frame, causing the silicon rod to fall into the positioning slot.

[0008] Furthermore, the movable frame is made of resin block, the positioning slot is V-shaped and is set along the length of the resin block; the resin block has a number of through holes spaced apart along its length, and the through holes are through in the vertical direction.

[0009] Furthermore, the lifting mechanism is a scissor-type lifting arm, including a pair of inner lifting arms and a pair of outer lifting arms. The middle parts of the inner lifting arms and the outer lifting arms are hinged by a pivot. A connecting rod is provided between the two inner lifting arms or the two outer lifting arms, and the connecting rod is connected to a drive mechanism.

[0010] Furthermore, a connecting rod is provided between the two inner lifting arms, and the driving mechanism adopts a hydraulic cylinder. The connecting rod is connected to the piston rod of the hydraulic cylinder. One end of the two outer lifting arms is hinged to the machine base, and the other end is hinged through a first hinge shaft. The two ends of the first hinge shaft are provided with first rollers, which are rolled and assembled on first wheel grooves. The first wheel grooves are fixed to the support plate. One end of the two inner lifting arms is hinged to the support plate, and the other end is hinged through a second hinge shaft. The two ends of the second hinge shaft are provided with second rollers, which are rolled and assembled on second wheel grooves. The second wheel grooves are fixed to the machine base.

[0011] Furthermore, the support wheels are arranged in pairs to form a V-shaped support opening.

[0012] Furthermore, several fixed rollers are provided on the upper side of the outer end of the fixing frame to support the silicon rod when it is initially loaded.

[0013] Furthermore, the cutting frame includes a Y-axis frame and a Z-axis frame. The Y-axis frame is driven by a Y-axis lead screw and nut mechanism, and the Z-axis frame is slidably mounted on the Y-axis frame and driven by a Z-axis lead screw and nut mechanism. The wire cutting unit is disposed on the Z-axis frame, which has a U-shaped opening facing downwards, and the U-shaped opening is correspondingly disposed with the workpiece support platform. The wire cutting unit includes a diamond wire loop, which passes through the bottom of the U-shaped opening.

[0014] Furthermore, the Z-axis frame is a single cantilever structure, and the side of the Z-axis frame away from the U-shaped opening is a sliding fit part, through which the Z-axis frame is slidably assembled onto the Y-axis frame.

[0015] Furthermore, the wire cutting unit includes a drive wire wheel and a tensioning wire wheel, the tensioning wire wheel being tensioned by a cylinder.

[0016] The beneficial effects of this utility model are:

[0017] Before placing the silicon rod, the hydraulic cylinder drives the support wheel assembly upwards until it protrudes from the resin block (movable frame). The silicon rod is supported by the support wheel assembly, and manual assistance can be used to push the silicon rod into the equipment. After the silicon rod is in place, the hydraulic cylinder reverses its action, and the support wheel assembly moves downwards and hides under the resin block (in a position where the support wheel assembly cannot be cut). Then, the silicon rod falls into the positioning slot of the resin block, where the resin block supports and positions the silicon rod. When cutting begins, the wire cutting unit moves to the set position according to the cut length. The Z-axis frame drives the wire cutting unit downwards to cut the silicon rod until it is cut off. During the cutting process, the diamond wire can simultaneously cut the resin block. Since the support wheel assembly cannot be cut at this time, the Y-axis frame can feed arbitrarily after the silicon rod is placed in place and before cutting, enabling the cutting of rod segments of any length. The resin block does not affect its supporting function for the silicon rod when the number of cuts is small. It can be used multiple times before replacing with a new resin block. The resin block is a low-cost consumable and easy to manufacture. This ingenious structural design perfectly meets the requirement of cutting silicon rods at any length without needing to avoid the support rollers. Attached Figure Description

[0018] Figure 1 This is a perspective view of the silicon rod cutting machine that can be freely cut according to this utility model;

[0019] Figure 2 This is a perspective view of the silicon rod cutting machine of this utility model after removing part of the outer shell;

[0020] Figure 3 This is a partial structural view of the workpiece support platform (without the support wheel assembly exposed);

[0021] Figure 4 It is a 3D view of the floating support platform;

[0022] Figure 5 This is a perspective view of the cutting device in this utility model;

[0023] Figure 6 yes Figure 5 A view of the tensioning structure at the tensioning reel.

[0024] The names corresponding to each mark in the diagram:

[0025] 11. Base; 12. Housing; 13. Front door; 21. Y-axis frame; 22. Z-axis lead screw and nut mechanism; 23. Z-axis frame; 231. U-shaped opening; 24. Y-axis lead screw and nut mechanism; 3. Silicon rod; 4. Wire cutting unit; 41. Driven wire wheel; 42. Tensioning wire wheel; 43. Guide wire wheel; 51. Fixing frame; 52. Fixing roller; 53. Resin block; 531. Through hole; 61. Outer lifting arm; 62. Inner lifting arm; 63. First wheel groove; 64. First roller; 65. Second roller; 66. Second wheel groove; 67. Cylinder; 71. Support plate; 72. Support wheel assembly; 721. Support wheel; 81. Push plate; 82. Slide rail; 83. Bearing seat. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0027] Example:

[0028] like Figures 1-6 As shown, a silicon rod cutting machine that can be freely cut includes a base 11, a workpiece support table, a cutting device and a housing 12, with a door on the front side and one of the left and right sides of the housing 12.

[0029] The cutting device includes a cutting frame and a wire cutting unit 4, which is movable in the Y-axis and Z-axis directions. The cutting frame includes a Y-axis frame 21 and a Z-axis frame 23. The Y-axis frame 21 is driven by a Y-axis lead screw and nut mechanism 24, and the Z-axis frame 23 is slidably mounted on the Y-axis frame 21 and driven by a Z-axis lead screw and nut mechanism 22. The wire cutting unit 4 is mounted on the Z-axis frame 23 and can translate along the Y-axis and move up and down along the Z-axis under the drive of the Y-axis and Z-axis lead screw and nut mechanisms 22, thereby completing the cutting of the silicon rod 3 into several segments of the required length.

[0030] Z-axis bracket 23 has a U-shaped opening 231 facing downwards, and the U-shaped opening 231 is correspondingly arranged with the workpiece support table; the wire cutting unit 4 includes a diamond ring wire, which passes through the bottom of the U-shaped opening 231 and cuts the silicon rod 3 on the workpiece support table when the diamond ring wire rotates at high speed.

[0031] The Z-axis bracket 23 is a single cantilever structure. The side of the Z-axis bracket 23 away from the U-shaped opening 231 is a sliding fit part. The Z-axis bracket 23 is slidably assembled onto the Y-axis bracket 21 through the sliding fit part. During the cutting process of the silicon rod 3 on the workpiece support table, the Z-axis bracket 23 moves downward and makes way for the silicon rod 3 using its U-shaped opening 231.

[0032] The workpiece support platform includes a fixed support platform and a floating support platform. The fixed support platform includes a fixed frame 51 and a movable frame. The movable frame is detachably connected to the upper side of the fixed frame 51 and has a positioning slot for positioning the silicon rod 3 during the processing.

[0033] like Figures 2-3 As shown, in this embodiment, the movable frame uses a resin block 53 with a V-shaped positioning slot. The positioning slot is set along the length of the resin block 53. After the silicon rod 3 is placed in, it can be stably supported and positioned by its own weight. The resin block 53 has several through holes 531 spaced apart along its length, and the through holes 531 are through in the vertical direction.

[0034] The resin block 53 is positioned around its perimeter by positioning strips and positioning plates. The positioning strips and positioning plates are connected to the fixing frame 51 by screws. The positioning strips and positioning plates form a rectangular area, which is just enough for the resin block 53 to be placed. The resin block 53 is a consumable material and is easy to replace later.

[0035] The floating support platform includes a lifting mechanism and a support wheel assembly 72. The support wheel assembly 72 includes a support plate 71 and several support wheels 721. The support plate 71 is fixed to the top of the lifting mechanism. The support wheels 721 are arranged in pairs to form a V-shaped support opening. The support wheels 721 are non-powered rollers, and the two support wheels 721 in a pair are inclined and symmetrically arranged.

[0036] The lifting mechanism is used to drive the support wheel assembly 72 upward through the through hole 531 so that the support wheel assembly 72 initially supports and positions the silicon rod 3. After the silicon rod 3 is placed in place, the lifting mechanism drives the support wheel assembly 72 downward to disengage from the movable frame, so that the silicon rod 3 falls into the positioning slot of the resin block 53. During the processing of the silicon rod 3, it is supported and positioned by the resin block 53.

[0037] like Figure 4 As shown, the lifting mechanism is a scissor-type lifting mechanism, including a pair of inner lifting arms 62 and a pair of outer lifting arms 61. The middle parts of the inner lifting arms 62 and the outer lifting arms 61 are hinged by a pivot. A connecting rod is provided between the two inner lifting arms 62 or the two outer lifting arms 61, and the connecting rod is connected to a drive mechanism.

[0038] In this embodiment, a connecting rod is provided between the two inner lifting arms 62, and the driving mechanism is a hydraulic cylinder. The connecting rod is connected to the piston rod of the hydraulic cylinder. One end of the two outer lifting arms 61 is hinged to the base 11, and the other end is hinged through a first hinge shaft. The two ends of the first hinge shaft are provided with first rollers 64. The first rollers 64 are rolled and assembled on the first wheel groove 63, and the first wheel groove 63 is fixed to one side of the support plate 71.

[0039] One end of each of the two inner lifting arms 62 is hinged to the support plate 71, and the other end is hinged via a second hinge shaft. Second rollers 65 are provided at both ends of the second hinge shaft, and the second rollers 65 are rotatably mounted on second wheel grooves 66, which are fixed to the base 11. Both the first wheel groove 63 and the second wheel groove 66 are U-shaped grooves. The cylinder body is inclined on the base 11, and the extension and retraction of the cylinder allows the support plate 71 to be raised and lowered while remaining horizontal.

[0040] like Figure 2 As shown, several fixing rollers 52 are provided on the upper outer side of the fixing frame 51 to support the silicon rod 3 when it is initially inserted. The number of fixing rollers 52 is small, and they mainly play an auxiliary role.

[0041] like Figure 5 As shown, the wire cutting unit 4 includes a drive wire wheel 41, a tension wire wheel 42, and two guide wire wheels 43. The axes of the two guide wire wheels 43 are in the same plane. The diamond loop wire passes around the drive wire wheel 41, the tension wire wheel 42, and the two guide wire wheels 43, so that the diamond loop wire is trapezoidal in shape as a whole, and the bottom section of the diamond loop wire, that is, the effective cutting section, is horizontal.

[0042] like Figure 6 As shown, the tensioning reel 42 is tensioned by a cylinder 67. The tensioning reel 42 is mounted on a tensioning shaft, which is mounted on a bearing housing 83. The bearing housing 83 is installed in a push plate 81. The bearing housing 83 and the push plate 81 do not rotate relative to each other; that is, when the push plate 81 moves linearly, the bearing housing 83 moves accordingly. The push plate 81 has a sliding part, which is slidably assembled with a slide rail 82. The push plate 81 is pushed by the cylinder 67. The extension and retraction direction of the cylinder 67 is towards or away from the workpiece support table. When the cylinder 67 extends, the bearing housing 83 moves in one direction, and the tensioning reel 42 is tensioned. When the cylinder 67 retracts, the bearing housing 83 moves in the opposite direction, and the tensioning reel 42 is relaxed. In the relaxed state of the tensioning reel 42, the old diamond wire loops can be disassembled and the new diamond wire loops can be installed.

[0043] The silicon rod cutting machine of this utility model, which can be freely cut off, is used as follows:

[0044] Open the front door 13, and the hydraulic cylinder drives the support wheel assembly 72 to move upward. The support wheel assembly 72 is above the resin block 53. With the help of a hoisting tool, the silicon rod 3 is loaded. One end of the silicon rod 3 first contacts the fixed roller 52. With manual assistance, the silicon rod 3 can be pushed into the equipment. The support height of the support wheel assembly 72 and the fixed roller 52 is the same. The silicon rod 3 can continue to be pushed inward along the fixed roller 52 and the support wheel assembly 72 until it is completely on the support wheel assembly 72. At this time, the hydraulic cylinder reverses its action, and the support wheel assembly 72 moves downward. The silicon rod 3 falls into the positioning slot of the resin block 53, where it is supported by the resin block 53. When the silicon rod 3 begins to be cut, the cutting device is automatically controlled by the equipment's control program. The Y-axis frame 21 is driven by the Y-axis lead screw and nut mechanism 24, moving to the set position according to the cutting length. The Z-axis frame 23 is driven by the Z-axis lead screw and nut mechanism 22, causing the wire cutting unit 4 to move downward to cut the silicon rod 3 until it is completely severed. During the cutting process, the diamond wire can simultaneously cut the resin block 53. Since the support wheel assembly 72 is hidden beneath the resin block 53, it cannot be cut. Therefore, after the silicon rod 3 is placed in position, the Y-axis frame 21 can be fed arbitrarily, enabling the cutting of rod segments of any length. The resin block 53 does not affect its supporting function for the silicon rod 3 when cut infrequently, and can be used multiple times before needing replacement. Using resin as a consumable material is low-cost and easy to manufacture.

[0045] In other embodiments, a movable frame made of PVC plastic or rubber can be used instead of the resin block, which has good support and is easy to cut.

[0046] In other embodiments, a cylinder or hydraulic cylinder can be used to directly lift and lower the plate in the vertical direction, thereby lifting and lowering the support plate and support wheel assembly. To improve stability, a cylinder can be installed at each of the lower ends of the support plate.

[0047] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A silicon rod cutting machine capable of free cutting, comprising a base, a workpiece support table, and a cutting device, wherein the cutting device includes a cutting frame and a wire cutting unit, the wire cutting unit being movable in the Y-axis and Z-axis directions, characterized in that: The workpiece support platform includes a fixed support platform and a floating support platform. The fixed support platform includes a fixed frame and a movable frame. The movable frame is detachably connected to the upper side of the fixed frame and has a positioning slot for positioning the silicon rod during the processing. The floating support platform includes a lifting mechanism and a support wheel assembly. The support wheel assembly includes a support plate and several support wheels. The support plate is fixed to the top of the lifting mechanism. The movable frame has a through hole for the support wheels to pass through when they move upward. The lifting mechanism is used to drive the support wheel assembly upward through the through hole so that the support wheel assembly provides initial support and positioning for the silicon rod.

2. The silicon rod cutting machine capable of being freely cut according to claim 1, characterized in that: During the silicon rod processing, the lifting mechanism drives the support wheel assembly to move downwards to disengage from the movable frame, causing the silicon rod to fall into the positioning slot.

3. The silicon rod cutting machine capable of being freely cut according to claim 1, characterized in that: The movable frame is made of resin block, and the positioning slot is V-shaped and is set along the length of the resin block; the resin block has a number of through holes spaced apart along its length, and the through holes are through in the vertical direction.

4. The silicon rod cutting machine capable of being freely cut according to claim 1, characterized in that: The lifting mechanism is a scissor-type lifting arm, including a pair of inner lifting arms and a pair of outer lifting arms. The middle parts of the inner and outer lifting arms are hinged by a pivot. A connecting rod is provided between the two inner lifting arms or the two outer lifting arms, and the connecting rod is connected to a drive mechanism.

5. The silicon rod cutting machine capable of being freely cut according to claim 4, characterized in that: A connecting rod is provided between the two inner lifting arms. The driving mechanism is a hydraulic cylinder. The connecting rod is connected to the piston rod of the hydraulic cylinder. One end of each of the two outer lifting arms is hinged to the base, and the other end is hinged through a first hinge shaft. The two ends of the first hinge shaft are provided with first rollers. The first rollers are rolled and assembled on first wheel grooves, which are fixed to the support plate. One end of each of the two inner lifting arms is hinged to the support plate, and the other end is hinged through a second hinge shaft. The two ends of the second hinge shaft are provided with second rollers. The second rollers are rolled and assembled on second wheel grooves, which are fixed to the base.

6. The silicon rod cutting machine capable of being freely cut according to claim 1, characterized in that: The support wheels are arranged in pairs to form a V-shaped support opening.

7. The silicon rod cutting machine capable of being freely cut according to claim 3, characterized in that: The upper outer end of the fixing frame is provided with several fixing rollers for supporting the silicon rod during initial loading.

8. The silicon rod cutting machine capable of being freely cut according to claim 1, characterized in that: The cutting frame includes a Y-axis frame and a Z-axis frame. The Y-axis frame is driven by a Y-axis lead screw and nut mechanism. The Z-axis frame is slidably mounted on the Y-axis frame and is driven by a Z-axis lead screw and nut mechanism. The wire cutting unit is located on the Z-axis frame. The Z-axis frame has a U-shaped opening facing downwards, and the U-shaped opening is correspondingly arranged with the workpiece support platform. The wire cutting unit includes a diamond wire loop, which passes through the bottom of the U-shaped opening.

9. The silicon rod cutting machine capable of being freely cut according to claim 8, characterized in that: The Z-axis frame is a single cantilever structure. The side of the Z-axis frame away from the U-shaped opening is a sliding fit part. The Z-axis frame is slidably assembled onto the Y-axis frame through the sliding fit part.

10. The silicon rod cutting machine capable of being freely cut according to claim 8, characterized in that: The wire cutting unit includes a drive wire wheel and a tensioning wire wheel, with the tensioning wire wheel being tensioned by a cylinder.

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