High-precision cutting device for tungsten alloy rod

Abstract

The utility model belongs to the technical field of tungsten alloy rod cutting equipment, and particularly relates to a tungsten alloy rod high-precision cut-off device which comprises a workpiece containing groove, a cutting mechanism and a conveying mechanism, a first positioning block is arranged at the outlet end of the workpiece containing groove, and the first positioning block is provided with a first positioning hole and a cutting groove with an upward opening. The conveying mechanism comprises an upper conveying belt group and a lower conveying belt group, the upper conveying belt group and the lower conveying belt group are used for pressing and driving the tungsten alloy rod to move, the upper conveying belt group and the lower conveying belt group are respectively provided with an upper rotating wheel and a lower rotating wheel which rotate synchronously, and the conveying mechanism is matched with a first encoder; a reinspection mechanism is arranged on the outlet side of the upper conveying belt set and the outlet side of the lower conveying belt set and comprises a second positioning block, a first detection wheel and a second encoder. The tungsten alloy rod cutting-off device has the advantage of being capable of accurately cutting off the tungsten alloy rod.

Description

Technical Field

[0001] The utility model belongs to the technical field of tungsten alloy rod cutting equipment, in particular to a tungsten alloy rod high-precision cutting device. Background Art

[0002] The initial length of the tungsten alloy rod after sintering is relatively long. In subsequent processing, the tungsten alloy rod needs to be cut.

[0003] The Chinese patent application number 201620855863.1 discloses a quantitative cutting device for an automatic pipe bending machine, wherein an encoder is installed on the rotating shaft of the motor, and the encoder is located between the connecting rod and the motor, and a controller is installed on the support leg, and the bending device, hydraulic press, motor and encoder are all electrically connected to the controller. The quantitative cutting device for the automatic pipe bending machine has two pressing wheels driving the pipe forward, and while the motor rotates, the encoder counts to determine the distance the pipe has advanced. After reaching the set distance, the motor stops rotating, and the bending device works to bend the pipe, and then the hydraulic press works to cut the pipe. After the end, the motor continues to work, and the processed bent pipe is pushed out of the guide hole by the new pipe to continue the next cutting.

[0004] When the above device is used to cut the tungsten alloy rod, the tungsten alloy rod is transported by the pressure wheel, and then the encoder counts to determine the distance the tungsten alloy rod has moved forward. After reaching the distance, the tungsten alloy rod is cut off. However, due to the heavy weight and high hardness of the tungsten alloy rod, the pressure wheel is prone to slipping when transporting the tungsten alloy rod. In addition, due to the high hardness of the tungsten alloy rod, the tungsten alloy is also prone to shaking when cutting the tungsten alloy rod. The above two problems will cause a large error between the cut length of the tungsten alloy rod and the standard value, and the tungsten alloy rod cannot be accurately cut off. Utility Model Content

[0005] The utility model aims to provide a tungsten alloy rod high-precision cutting device which can accurately cut off the tungsten alloy rod.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-precision tungsten alloy rod cutting device, comprising a workpiece placement groove, a cutting mechanism, and a conveying mechanism, wherein the workpiece placement groove extends in a horizontal straight direction and a first positioning block is provided at the outlet end of the workpiece placement groove, the cutting mechanism is located above the first positioning block, the first positioning block is provided with a first positioning hole extending in a horizontal straight direction and used for positioning the circumferential position of the tungsten alloy rod, the first positioning block is also provided with a cutting groove opening upward, the cutting groove is connected to the first positioning hole; the outlet end of the first positioning hole is provided with the conveying mechanism, the conveying mechanism comprises an upper conveying belt group and a lower conveying belt group, and a conveying belt is formed between the upper conveying belt group and the lower conveying belt group to make the tungsten alloy rod move. The chamber through which the alloy rod passes, the upper conveyor belt group and the lower conveyor belt group are used to compress and drive the tungsten alloy rod to move, the upper conveyor belt group and the lower conveyor belt group are respectively provided with an upper rotating wheel and a lower rotating wheel that rotate synchronously, and the conveying mechanism is matched with a first encoder that detects the number of rotations and angles of the upper rotating wheel and the lower rotating wheel to obtain the length of the transmitted tungsten alloy rod; the outlet side of the upper conveyor belt group and the lower conveyor belt group is provided with a re-inspection mechanism, the re-inspection mechanism includes a second positioning block, a first detection wheel and a second encoder, the second positioning block is provided with a second positioning hole for allowing the truncated tungsten alloy rod to pass, the first detection wheel is used to contact the truncated tungsten alloy rod, and the second encoder detects the number of rotations and angles of the first detection wheel.

[0007] When in use, the tungsten alloy rod passes through the first positioning hole of the first positioning block from the placement groove, and then is located between the upper conveyor belt group and the lower conveyor belt group. The upper conveyor belt group and the lower conveyor belt group allow the tungsten alloy rod to pass through. The first encoder detects the number of rotations and angles of the upper rotating wheel and the lower rotating wheel to obtain the length of the transmitted tungsten alloy rod. When the length reaches the required value, the conveying mechanism stops, and then the output end of the cutting mechanism enters the cutting groove to cut off the tungsten alloy rod. The cut tungsten alloy rod will then be transported to the re-inspection mechanism, and the second encoder will re-inspect the length of the cut tungsten alloy rod.

[0008] Among them, the upper conveyor belt group and the lower conveyor belt group are pressed and drive the tungsten alloy rod to move, which can ensure that the detected length is more accurate, and ensure that when the upper conveyor belt group and the lower conveyor belt group move, the tungsten alloy rod moves together to avoid slipping.

[0009] The first positioning hole of the first positioning block and the second positioning hole of the second positioning block can ensure that the tungsten alloy rod will not shift when moving, thereby avoiding the truncated length not meeting the requirements or inaccurate results during re-inspection due to the shift of the tungsten alloy rod.

[0010] In this solution, the tungsten alloy rod is limited by the first positioning hole and the second positioning hole to ensure that the tungsten alloy rod will not deviate; the conveying mechanism presses and moves the tungsten alloy rod to reduce the possibility of slipping of the tungsten alloy rod, and then the length of the tungsten alloy rod after truncation is rechecked to achieve accurate truncation of the tungsten alloy rod.

[0011] Preferably, bevel gears are provided at the same side ends of the rotating shafts of the upper rotating wheel and the lower rotating wheel, and the bevel gears of the upper rotating wheel and the lower rotating wheel are meshed with the bevel gears of the same transmission shaft to realize synchronous rotation of the upper rotating wheel and the lower rotating wheel, and the end of the transmission shaft is connected to the first encoder.

[0012] The transmission shaft makes the upper rotating wheel and the lower rotating wheel rotate synchronously, thereby realizing the synchronous rotation of the upper and lower conveyor belt groups, avoiding the inaccurate conveying of the tungsten alloy rod caused by inconsistent upper and lower conveying speeds. At the same time, the first encoder detects the number of rotations and angles of the transmission shaft to calculate the length of the tungsten alloy rod conveyed by the upper and lower conveyor belt groups.

[0013] Preferably, the upper rotating wheel and the lower rotating wheel are rotatably fixed on an upper fixed plate and a lower fixed plate respectively, and the upper fixed plate is fixed on the lifting mechanism.

[0014] When the second encoder detection data of the re-inspection mechanism deviates from the first encoder detection data, it may be that the friction between the tungsten alloy rod and the upper and lower conveyor belt groups is small and there is slippage. The lifting mechanism controls the lowering of the upper fixed plate so that the upper conveyor belt presses the tungsten alloy rod to increase the friction. The lifting mechanism can be a screw structure, a cylinder mechanism, etc.

[0015] Preferably, the upper conveyor belt group includes an upper conveyor belt mounted on an upper rotating wheel, and the lower conveyor belt group includes a lower conveyor belt mounted on a lower rotating wheel, and the upper conveyor belt and the lower conveyor belt are respectively in contact with a second detection wheel, and each of the second detection wheels is connected to a third encoder.

[0016] The third encoder is used to detect the number of rotations of the second detection wheel, so as to obtain the conveying distance of the upper conveyor belt and the lower conveyor belt. The data is compared with the data of the first encoder. If there is a large error between the two, there may be looseness between the rotating wheel and the conveyor belt. It is necessary to adjust the upper rotating wheel to tighten the upper conveyor belt, and adjust the lower rotating wheel to tighten the lower conveyor belt.

[0017] Preferably, the upper fixed plate and the lower fixed plate are both provided with long holes extending in the horizontal direction, and the upper rotating wheel and the lower rotating wheel respectively include an upper driving wheel and an upper driven wheel, and a lower driving wheel and a lower driven wheel; the rotating shafts of the upper driven wheel and the lower driven wheel respectively extend out of the long holes, and fixed blocks are provided at the side ends of the upper fixed plate and the lower fixed plate, and the fixed blocks are rotatably connected with adjusting bolts, and the adjusting bolts are threadedly matched with the rotating shafts of the upper driven wheel and the lower driven wheel, and the adjusting bolts are rotated to make the upper driven wheel and the lower driven wheel slide in the long holes to tighten the upper conveyor belt and the lower conveyor belt.

[0018] Therefore, the upper driven wheel and the lower driven wheel can slide in the long hole to tighten the upper conveyor belt and the lower conveyor belt by rotating the adjusting bolt.

[0019] Preferably, the first positioning block comprises an upper positioning block and a lower positioning block, and a clamping mechanism for clamping the upper positioning block and the lower positioning block is provided on the outer side of the first positioning block.

[0020] The clamping mechanism can ensure that both sides of the cutting surface of the tungsten alloy rod are clamped when it is cut.

[0021] Preferably, the workpiece placement slot is equipped with a conveyor belt and a conveyor drive device, and the conveyor belt and the conveyor drive device are used to convey the tungsten alloy rod to the cutting mechanism.

[0022] Since the initial length of the tungsten alloy rod is relatively long, a large force is required to move the entire initial tungsten alloy rod, so relying solely on the conveying mechanism on the outlet side of the cutting mechanism may not be enough. Therefore, a conveyor belt can be placed at the position of the workpiece placement slot to facilitate the movement of the initial tungsten alloy rod. The transmission drive mechanism is electrically connected to the motor of the conveying mechanism, and the two are started and shut down synchronously.

[0023] Preferably, a guide block is provided in the workpiece placement groove, and the guide block includes a guide block body and a guide section, the width of the guide section along the conveying direction of the tungsten alloy rod gradually increases to form an inclined surface for contacting the tungsten alloy rod, a limiting groove for limiting the horizontal position of the tungsten alloy rod is formed between the guide block body and the groove wall on one side of the workpiece placement groove, and an open structure is formed between the guide section and the groove wall on one side of the workpiece placement groove.

[0024] An open structure is formed between the guide section and the groove wall on one side of the workpiece placement groove so that the tungsten alloy rod can be guided when moving, so that the tungsten alloy rod enters the limiting groove, and the limiting groove limits the position of the tungsten alloy rod in the horizontal direction.

[0025] Preferably, a vertical pressing wheel is provided in the workpiece placement groove, and the pressing wheel is used to contact the tungsten alloy rod and elastically press the tungsten alloy rod.

[0026] The clamping wheel can reduce the friction between the tungsten alloy rod and elastically clamp the tungsten alloy rod, thereby limiting the vertical position of the tungsten alloy rod.

[0027] The utility model has the following advantages: the tungsten alloy rod is limited by the first positioning hole and the second positioning hole to ensure that the tungsten alloy rod will not deviate; the conveying mechanism presses and moves the tungsten alloy rod to reduce the possibility of the tungsten alloy rod slipping, and then the length of the tungsten alloy rod after being cut off is rechecked, so as to accurately cut off the tungsten alloy rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model.

[0029] Figure 2 This is an enlarged view of the cutting mechanism and the conveying mechanism.

[0030] Figure 3 It is a schematic diagram of the structure of the back side of the conveying mechanism.

[0031] Figure 4 It is a schematic diagram of the structure at the first positioning block.

[0032] Figure 5 It is a structural schematic diagram of the conveying mechanism.

[0033] Figure 6 This is a schematic diagram of the structure of the re-inspection agency.

[0034] Figure 7 Schematic diagram of the structure at the guide block.

[0035] Figure 8 A schematic diagram of the structure from another perspective of the guide block.

[0036] Fig. 9 The end of the slot for placing the workpiece is a schematic diagram of the structure.

[0037] Figure numbers: workbench 1, bracket 11, workpiece placement groove 2, guide block body 21, guide section 211, clamping wheel 22, limit groove 23, vertical rod 24, compression spring 25, cutting mechanism 3, grinding wheel 31, vertical plate 32, slide rail 33, slide plate 34, conveyor belt 4, conveying drive mechanism 41, conveying mechanism 5, upper conveyor belt group 51, upper conveyor belt 511, lower conveyor belt group 52, lower driving wheel 521, lower driven wheel 522, lower conveyor belt 523, connecting rod 524, transmission shaft 53 , bevel gear 531, first encoder 54, upper fixing plate 55, upper long hole 551, lower fixing plate 56, lower long hole 561, guide column 57, hand wheel 58, screw 59, connecting block 591, second encoder 6, first detection wheel 61, second positioning block 62, second positioning hole 621, clamping mechanism 7, upper positioning block 71, lower positioning block 72, cutting groove 73, first positioning hole 74, fixing block 8, adjusting bolt 81, second detection wheel 9, third encoder 91, tungsten alloy rod 100. DETAILED DESCRIPTION

[0038] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0039] like Figure 1 , Figure 2 and Fig. 9 As shown, this embodiment discloses a tungsten alloy rod high-precision cutting device, including a workbench 1 and a bracket 11, the bracket 11 is provided with a workpiece placement groove 2 extending in a horizontal direction along a left and right straight line, and a conveyor belt 4 is matched in the workpiece placement groove 2. The conveyor belt 4 is driven by a conveying drive mechanism 41, and the conveyor belt 4 moves the tungsten alloy rod 100 toward the side of the workbench 1. The workbench 1 is provided with a cutting mechanism 3 for cutting the tungsten alloy rod, and the cutting mechanism 3 is located at the outlet end on the left side of the workpiece placement groove 2. The workbench 1 is also provided with a conveying mechanism 5, and the conveying mechanism 5 is arranged on the left side of the cutting mechanism 3.

[0040] like Figure 7 and Figure 8As shown, the workpiece placement slot 2 is provided with a guide block, which does not contact the conveyor belt 4 below. The guide block is fixed on one side of the slot wall of the workpiece placement slot 2. The guide block includes a guide block body 21 and a guide section 211 from left to right. The guide block body 21 is closer to the cutting mechanism than the guide section 211. The width of the guide section 211 along the conveying direction of the tungsten alloy rod 100 gradually increases to form an inclined surface for contacting the tungsten alloy rod. A limit groove 23 for limiting the horizontal position of the tungsten alloy rod is formed between the guide block body 21 and the slot wall on one side of the workpiece placement slot 2. An open structure is formed between the guide section 211 and the slot wall on one side of the workpiece placement slot 2. A vertically clamping pressure wheel 22 is provided in the workpiece placement slot 2. The pressure wheel 22 is fixed at the lower end of the vertical rod 24. A compression spring 25 is sleeved on the outer side of the vertical rod 24. The pressure wheel 22 has a tendency to move downward on the compression spring 25, so that the pressure wheel 22 contacts the tungsten alloy rod 100 and elastically clamps the tungsten alloy rod 100.

[0041] like Figure 2 and Figure 4 As shown, a positioning block is provided below the cutting mechanism 3, and the positioning block is provided with a first positioning hole 74 that penetrates in the horizontal direction and locates the circumferential position of the tungsten alloy rod, and the positioning block is provided with a cutting groove 73 that penetrates upward. The cutting groove 73 is connected to the first positioning hole 74. The positioning block includes an upper positioning block 71 and a lower positioning block 72 that are arranged up and down, and the upper positioning block 71 and the lower positioning block 72 are located between two clamping jaws of a clamping mechanism 7, and the clamping mechanism 7 is a cylinder clamping jaw. The cutting mechanism 3 includes a grinding wheel 31, and the grinding wheel 31 is located above the cutting groove 73. The cutting mechanism 3 is fixed on a slide plate 34, and the slide plate 34 is slidably matched on a vertically arranged slide rail 33, and the slide rail 33 is fixed on a vertical plate 32. Under the action of the slide plate 34, the grinding wheel 31 can be vertically lifted and lowered on the slide rail 33 and extend into the cutting groove 73.

[0042] like Figure 2 , Figure 3 and Figure 5As shown, the conveying mechanism 5 includes an upper conveying belt group 51 and a lower conveying belt group 52, and the upper conveying belt group 51 and the lower conveying belt group 52 are arranged at an interval from top to bottom, and a chamber is formed between the upper conveying belt group 51 and the lower conveying belt group 52 for the tungsten alloy rod 100 to pass through. The upper conveying belt group 51 includes an upper driving wheel (not shown in the figure) and an upper driven wheel (not shown in the figure), and an upper conveying belt 511 sleeved on the outer side of the upper driving wheel (not shown in the figure) and the upper driven wheel; the lower conveying belt group 52 includes a lower driving wheel 521 and a lower driven wheel 522, and a lower conveying belt 523 sleeved on the outer side of the lower driving wheel 521 and the lower driven wheel 522. The lower driving wheel 521 is connected to a motor (not shown in the figure). The lower driving wheel 521 and the upper driving wheel are both provided with a rotating shaft, and each rotating shaft is synchronized with the lower driving wheel 521 and the upper driving wheel through a keyway and a flat key. The back ends of the rotating shafts of the lower driving wheel 521 and the upper driving wheel are both provided with bevel gears, and the bevel gears of the back ends of the rotating shafts of the lower driving wheel 521 and the upper driving wheel are meshed with the bevel gear 531 on the transmission shaft 53, so as to realize the synchronous rotation of the lower driving wheel 521 and the upper driving wheel, thereby realizing the synchronous rotation of the upper transmission belt group 51 and the lower transmission belt group 52. The two bevel gears 531 of the transmission shaft are centrally symmetrically arranged, so that the rotation directions of the lower driving wheel 521 and the upper driving wheel are opposite. The upper end of the transmission shaft 53 is connected to a first encoder 54, which directly detects the number of rotations and angles of the transmission shaft 53, thereby indirectly obtaining the number of rotations and angles of the lower driving wheel 521 and the upper driving wheel, thereby converting the length of the conveyed tungsten alloy rod.

[0043] like Figure 3 As shown, the upper driving wheel and the lower driven wheel are rotatably fixed between the two upper fixed plates 55, and the rotating shafts of the upper driving wheel and the lower driven wheel extend beyond the two sides of the upper fixed plates 55; the lower driving wheel 521 and the lower driven wheel 522 are rotatably fixed between the two lower fixed plates 56, and the rotating shafts of the lower driving wheel 521 and the lower driven wheel 522 extend beyond the two sides of the lower fixed plates 56. Two vertically arranged guide columns 57 are provided on the workbench 1, and two connecting blocks 591 are slidably fitted on the guide columns 57. The two connecting blocks 591 are fixed to the upper fixed plate 55 and the lower fixed plate 56 respectively. The connecting block 591 of the lower fixed plate 56 is supported on the workbench 1 and fixed. The connecting block 591 of the upper fixed plate 56 is threadedly matched with a vertically arranged screw rod 59. A hand wheel 58 is provided at the end of the screw rod 59. When the hand wheel 58 is turned, the connecting block 591 of the upper fixed plate 56 will move vertically up and down to adjust the height position of the upper conveyor belt group 51, thereby ensuring that the upper conveyor belt group 51 presses the tungsten alloy rod 100.

[0044] like Figure 5 and Figure 8As shown, the two upper fixing plates 55 and the two lower fixing plates 56 are connected by a connecting rod 524. Each upper fixing plate 55 and each lower fixing plate 56 are provided with a long hole 551 which runs through transversely, and the rotating shafts of the upper driven wheel and the lower driven wheel 522 are located in the long hole 551. The rotating shaft of the upper driven wheel is rotatably connected to the upper driven wheel through a bearing, and the rotating shaft of the lower driven wheel 522 is rotatably connected to the lower driven wheel 522 through a bearing. A fixing block 8 is fixed on one side wall of the upper fixing plate 55 and the lower fixing plate 56, and an adjusting bolt 81 is matched on the fixing block 8. The adjusting bolt 81 is threadedly matched with the rotating shaft of the upper driven wheel and the lower driven wheel 522. The adjusting bolt 81 is rotated to make the upper driven wheel and the lower driven wheel slide in the long hole 551 to tighten the upper conveyor belt 511 and the lower conveyor belt 523.

[0045] like Figure 5 and Figure 6 As shown, a re-inspection mechanism is provided at the exit side of the upper conveyor belt group 51 and the lower conveyor belt group 52. The re-inspection mechanism includes a second positioning block 62, a first detection wheel 61 and a second encoder 6. The second positioning block 62 is provided with a second positioning hole 621 for the truncated tungsten alloy rod to pass through. The first detection wheel 61 is used to contact the truncated tungsten alloy rod 100. The second encoder 6 detects the number of rotations and angles of the first detection wheel 61. A second detection wheel 9 is provided between the re-inspection mechanism and the upper conveyor belt group 51 and the lower conveyor belt group 52. The number of second detection wheels 9 is two (only one is shown in the figure). Each second detection wheel 9 contacts the upper conveyor belt 511 and the lower conveyor belt 523 respectively. The second detection wheel 9 is connected to a third encoder 91. The third encoder 91 directly detects the number of rotations and angles of the second detection wheel 9, thereby obtaining the conveying distance of the upper conveyor belt 511 and the lower conveyor belt 523.

[0046] During use, the operator places the initial tungsten alloy rod 100 in the workpiece placement slot 2, and then the conveyor belt and the conveying mechanism start working, so that the tungsten alloy rod 100 moves, and the tungsten alloy rod 100 moves through the first positioning hole, the upper conveyor belt group 51 and the lower conveyor belt group 52, and then the second positioning hole, and the cutting mechanism cuts off the tungsten alloy rod 100. The first tungsten alloy rod that is cut off will have deviations, so after the first tungsten alloy rod is cut off, the first encoder and the second encoder start working, and the first encoder is electrically connected to the motor of the conveying mechanism 5. When the first encoder detects the required number of turns and angle of the transmission shaft, the first encoder controls the motor of the conveying mechanism 5 to stop rotating, and then the cutting mechanism descends and cuts the tungsten alloy rod 100. At the same time, the tungsten alloy rod 100 after being cut off will pass through the re-inspection mechanism, and the second encoder of the re-inspection mechanism will re-inspect the length of the tungsten alloy rod 100 after being cut off.

Claims

1. A tungsten alloy rod high-precision cutting device, comprising a workpiece placement groove, a cutting mechanism, and a conveying mechanism, wherein the workpiece placement groove extends in a horizontal straight line direction and a first positioning block is provided at the outlet end of the workpiece placement groove, the cutting mechanism is located above the first positioning block, the first positioning block is provided with a first positioning hole extending in a horizontal straight line direction and used to position the circumferential position of the tungsten alloy rod, the first positioning block is also provided with a cutting groove opening upward, the cutting groove is connected to the first positioning hole; the outlet end of the first positioning hole is provided with the conveying mechanism, the conveying mechanism comprises an upper conveyor belt group and a lower conveyor belt group, a chamber for the tungsten alloy rod to pass through is formed between the upper conveyor belt group and the lower conveyor belt group, and the characteristics are: The upper conveyor belt group and the lower conveyor belt group are used to compress and drive the tungsten alloy rod to move. The upper conveyor belt group and the lower conveyor belt group are respectively provided with an upper rotating wheel and a lower rotating wheel that rotate synchronously. The conveying mechanism is equipped with a first encoder that detects the number of rotations and angles of the upper rotating wheel and the lower rotating wheel to obtain the length of the transmitted tungsten alloy rod; the outlet side of the upper conveyor belt group and the lower conveyor belt group is provided with a re-inspection mechanism, and the re-inspection mechanism includes a second positioning block, a first detection wheel and a second encoder. The second positioning block is provided with a second positioning hole for the truncated tungsten alloy rod to pass through. The first detection wheel is used to contact the truncated tungsten alloy rod, and the second encoder detects the number of rotations and angles of the first detection wheel.

2. The tungsten alloy rod high-precision cutting device according to claim 1 is characterized in that: Bevel gears are provided at the same side ends of the rotating shafts of the upper rotating wheel and the lower rotating wheel, and the bevel gears of the upper rotating wheel and the lower rotating wheel are meshed with the bevel gears of the same transmission shaft to realize synchronous rotation of the upper rotating wheel and the lower rotating wheel, and the end of the transmission shaft is connected to the first encoder.

3. The tungsten alloy rod high-precision cutting device according to claim 1 is characterized in that: The upper rotating wheel and the lower rotating wheel are rotatably fixed on an upper fixing plate and a lower fixing plate respectively, and the upper fixing plate is fixed on the lifting mechanism.

4. The high-precision tungsten alloy rod cutting device according to claim 3 is characterized in that: The upper conveyor belt group includes an upper conveyor belt mounted on an upper rotating wheel, and the lower conveyor belt group includes a lower conveyor belt mounted on a lower rotating wheel. The upper conveyor belt and the lower conveyor belt are respectively in contact with a second detection wheel, and each of the second detection wheels is connected to a third encoder.

5. The tungsten alloy rod high-precision cutting device according to claim 4, characterized in that: The upper fixed plate and the lower fixed plate are both provided with long holes extending in the horizontal direction, and the upper rotating wheel and the lower rotating wheel respectively include an upper driving wheel and an upper driven wheel, and a lower driving wheel and a lower driven wheel; the rotating shafts of the upper driven wheel and the lower driven wheel respectively extend out of the long holes, and fixed blocks are provided at the side ends of the upper fixed plate and the lower fixed plate, and the fixed blocks are rotatably connected with adjusting bolts, and the adjusting bolts are threadedly matched with the rotating shafts of the upper driven wheel and the lower driven wheel, and the adjusting bolts are rotated to make the upper driven wheel and the lower driven wheel slide in the long holes to tighten the upper conveyor belt and the lower conveyor belt.

6. The tungsten alloy rod high-precision cutting device according to any one of claims 1 to 5, characterized in that: The first positioning block comprises an upper positioning block and a lower positioning block, and a clamping mechanism for clamping the upper positioning block and the lower positioning block is disposed on the outer side of the first positioning block.

7. The tungsten alloy rod high-precision cutting device according to any one of claims 1 to 5, characterized in that: The workpiece placement slot is equipped with a conveyor belt and a conveyor drive device, and the conveyor belt and the conveyor drive device are used to convey the tungsten alloy rod to the cutting mechanism.

8. The tungsten alloy rod high-precision cutting device according to any one of claims 1 to 5, characterized in that: A guide block is provided in the workpiece placement groove, and the guide block includes a guide block body and a guide section. The width of the guide section along the conveying direction of the tungsten alloy rod gradually increases to form an inclined surface for contacting the tungsten alloy rod. A limiting groove for limiting the horizontal position of the tungsten alloy rod is formed between the guide block body and the groove wall on one side of the workpiece placement groove, and an open structure is formed between the guide section and the groove wall on one side of the workpiece placement groove.

9. The tungsten alloy rod high-precision cutting device according to any one of claims 1 to 5, characterized in that: A vertical pressing wheel is arranged in the workpiece placement groove, and the pressing wheel is used to contact with the tungsten alloy rod and elastically press the tungsten alloy rod.

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