Hard alloy rotary file head blank grabbing and placing device

Abstract

A hard alloy rotary file head blank grabbing and placing device comprises a chuck, a comprehensive air cylinder and a rotating assembly, the chuck comprises a fixed clamping block and a movable clamping block, moving holes are formed in the left end and the right end of the fixed clamping block, a fixing hole is formed in the center of the fixed clamping block, and a chuck telescopic rod is fixedly arranged in the fixing hole; movable guide rods corresponding to the movable holes are arranged at the left and right ends of the movable clamping block, the front ends of the movable guide rods are fixed with the movable clamping block, and the rear ends of the movable guide rods penetrate through the movable holes; the lower parts of the fixed clamping block and the movable clamping block are thinner than the upper parts; the comprehensive air cylinder comprises a telescopic cylinder and a movable cylinder, the end of the telescopic rod is embedded into the telescopic cylinder, and the end of the movable guide rod is embedded into the movable cylinder; the rotating assembly comprises a lifting rod, a lifting cylinder and a rotating motor, the top end of the lifting rod is connected with the comprehensive cylinder, the bottom end of the lifting rod is connected with the lifting cylinder, and the bottom of the lifting cylinder is connected with the rotating motor.

Description

Technical Field

[0001] The utility model relates to the technical field of cemented carbide rotary file head production, in particular to a device for grasping and arranging blanks of cemented carbide rotary file heads. Background Art

[0002] The existing production process of cemented carbide rotary file heads generally includes the following steps: 1. Preparation of the mixture. The ingredients required for the file head blanks are mixed in a certain proportion. After mixing, wet grinding media are added, and grinding is carried out for a certain period of time. After the ground mixture slurry is sieved, it is dried with a vacuum dryer and sampled for identification. After passing the identification, wet abrasive is added with a molding agent such as paraffin or rubber, stirred and mixed evenly, and then sieved to obtain the mixture for pressing and forming; 2. Pressing and forming. The mixture is pressed and formed through a mold and a press to obtain a cemented carbide green compact; 3. Sintering. The cemented carbide green compact is placed on a graphite plate, and the molding agent (such as paraffin or rubber) is removed at a low temperature below 600°C, impurities and gases are removed by medium-temperature pre-sintering at 600 - 1200°C, and high-temperature densification sintering is carried out at 1200 - 1500°C to obtain a cemented carbide blank product.

[0003] During the process of transferring the green compact to the graphite plate for the sintering process after the pressing and forming process is completed, a flexible gripper is usually used to automatically grasp and arrange the green compacts. Because the gripper needs to leave a relatively large opening gap, the adjacent gaps are relatively large after the green compacts are arranged on the plate, and the loading density is low. The single-plate and single-furnace sintering output is low. Therefore, a transfer and grasping device that can effectively increase the loading density is an urgently needed product on the market. Summary of the Invention

[0004] To solve the above problems, the utility model provides the following solutions:

[0005] A device for grasping and arranging blanks of cemented carbide rotary file heads includes a chuck, a comprehensive cylinder and a rotating assembly. The chuck includes a fixed chuck block and a moving chuck block. The left and right ends of the fixed chuck block are provided with moving holes, and a fixed hole is opened in the center of the fixed chuck block. A chuck expansion rod is fixedly arranged in the fixed hole. The left and right ends of the moving chuck block are provided with moving guide rods corresponding to the moving holes. The front ends of the moving guide rods are fixed to the moving chuck block, and the rear ends of the moving guide rods pass through the moving holes; both the fixed chuck block and the moving chuck block have a lower thickness at the lower part than at the upper part; the comprehensive cylinder includes a telescopic cylinder and a moving cylinder. The end of the expansion rod is embedded in the telescopic cylinder, and the end of the moving guide rod is embedded in the moving cylinder; the rotating assembly includes a lifting rod, a lifting cylinder and a rotating motor. The top of the lifting rod is connected to the comprehensive cylinder, the bottom of the lifting rod is connected to the lifting cylinder, and the bottom of the lifting cylinder is connected to the rotating motor.

[0006] Further, the front end of the chuck expansion rod passes through the fixed chuck block and is fixed to the fixed chuck block by a fixing nut.

[0007] Further, the front end of the movable guide rod passes through the movable clamping block and is fixed to the movable clamping block in cooperation with a fixing nut.

[0008] Further, a limit nut is sleeved outside the movable guide rod. When the movable clamping block moves to the maximum distance from the fixed clamping block, the limit nut abuts against the fixed clamping block.

[0009] Further, the bottom of the rotary motor is connected to the workbench or the workbench clamping bracket.

[0010] Further, anti-slip surfaces are provided on the opposite lower sides of the fixed clamping block and the movable clamping block.

[0011] Further, the anti-slip surfaces are anti-slip patterns provided on the opposite lower sides of the fixed clamping block and the movable clamping block; or anti-slip pads are provided on the opposite sides.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The chuck can clamp the blank file head at various angles, which is convenient for operation;

[0014] 2. The lower parts of the fixed clamping block and the movable clamping block adopt a thinner design, which can reduce the interval when placing the blank file head, thereby increasing the loading and unloading density per disk and effectively improving the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a top view of the chuck.

[0017] 1. Chuck; 2. Chuck telescopic rod; 3. Comprehensive cylinder; 4. Lifting rod; 5. Lifting cylinder; 6. Rotary motor; 7. Workbench; 8. Fixed clamping block; 9. Movable clamping block; 10. Movable guide rod; 11. Fixed nut; 12. Fixing nut; 13. Limit nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present utility model will be described in detail below in conjunction with the accompanying drawings:

[0019] Embodiment 1: A carbide rotary file head blank grasping and arranging device, including a chuck 1, a comprehensive cylinder 3 and a rotating assembly. The chuck 1 includes a fixed chuck block 8 and a movable chuck block 9. The fixed chuck block 8 is provided with moving holes at its left and right ends, and a fixed hole is provided at the center of the fixed chuck block 8. A chuck telescopic rod 2 is fixedly arranged in the fixed hole. The left and right ends of the movable chuck block 9 are provided with moving guide rods 10 corresponding to the moving holes. The front end of the moving guide rod 10 is fixed to the movable chuck block 9, and the rear end of the moving guide rod 10 passes through the moving hole. Both the fixed chuck block 8 and the movable chuck block 9 have a lower thickness smaller than the upper thickness. The comprehensive cylinder 3 includes a telescopic cylinder and a moving cylinder. The end of the chuck telescopic rod 2 is embedded in the telescopic cylinder, and the end of the moving guide rod 10 is embedded in the moving cylinder. The rotating assembly includes a lifting rod 4, a lifting cylinder 5 and a rotating motor 6. The top of the lifting rod 4 is connected to the comprehensive cylinder 3, the bottom of the lifting rod 4 is connected to the lifting cylinder 5, and the bottom of the lifting cylinder 5 is connected to the rotating motor 6.

[0020] The front end of the chuck telescopic rod 2 passes through the fixed chuck block 8 and is fixed to the fixed chuck block 8 by cooperating with a fixing nut 11. The front end of the moving guide rod 10 passes through the movable chuck block 9 and is fixed to the movable chuck block 9 by cooperating with a fixing nut 12.

[0021] A limit nut 13 is sleeved outside the moving guide rod 9. When the movable chuck block 9 moves to the maximum interval from the fixed chuck block 8, the limit nut 13 abuts against the fixed chuck block 8. The bottom of the rotating motor 6 is connected to a workbench 7 or a workbench clamping bracket.

[0022] Anti-slip surfaces are provided on the lower opposite sides of the fixed chuck block 8 and the movable chuck block 9. The anti-slip surfaces are anti-slip patterns provided on the lower opposite sides of the fixed chuck block 8 and the movable chuck block 9; or anti-slip pads are provided on the opposite sides.

[0023] In the sintering process of the file head blank production process, the file head blank needs to be loaded on a graphite plate, and the forming agent (such as paraffin or rubber) is removed at a low temperature below 600 °C, impurities and gases are removed by medium-temperature pre-sintering at 600 - 1200 °C, and a carbide blank product is obtained by high-temperature densification sintering at 1200 - 1500 °C. In the process of arranging the plates, the present invention can be used to improve the grasping efficiency.

[0024] The lower thickness of the chuck of the present invention is reduced, and the minimum can reach 0.5 mm. When clamping the green compact, the opening gap is 0.5 mm, and the minimum arranging plate gap can be reduced to 1.0 mm. Taking a green compact with a diameter of 24 as an example, 143 pieces can be arranged on the plate when the peripheral gap is 5 mm. If the gap is adjusted to 1 mm, 195 pieces can be arranged on the plate, increasing the arranging plate density by 36%. At the same time, the sintering production capacity and output are improved, and the sintering energy consumption cost is greatly reduced; the chuck can clamp the file head blank at various angles, which is convenient for operation; the lower parts of the fixed chuck block and the movable chuck block adopt a thinner design, which can reduce the interval when the file head blanks are placed, thereby increasing the single-plate loading and unloading density and effectively improving the working efficiency.

Claims

1. A device for grabbing and swinging a plate of a hard alloy rotary file head blank, characterized in that: It includes a chuck, an integrated cylinder and a rotating component, the chuck includes a fixed clamp block and a movable clamp block, the left and right ends of the fixed clamp block are provided with movable holes, the center of the fixed clamp block is provided with a fixed hole, a chuck telescopic rod is fixedly arranged in the fixed hole, movable guide rods are arranged at the left and right ends of the movable clamp block corresponding to the movable holes, the front end of the movable guide rod is fixed to the movable clamp block, and the rear end of the movable guide rod passes through the movable hole; the lower thickness of the fixed clamp block and the movable clamp block are both smaller than the upper thickness; the integrated cylinder includes a telescopic cylinder and a movable cylinder, the end of the telescopic rod is embedded in the telescopic cylinder, and the end of the movable guide rod is embedded in the movable cylinder; the rotating component includes a lifting rod, a lifting cylinder and a rotating motor, the top end of the lifting rod is connected to the integrated cylinder, the bottom end of the lifting rod is connected to the lifting cylinder, and the bottom of the lifting cylinder is connected to the rotating motor.

2. A device for grabbing and swinging a hard alloy rotary file head blank as claimed in claim 1, characterized in that: The front end of the clamp telescopic rod passes through the fixed clamp block and is fixed to the fixed clamp block by a fixed nut.

3. A device for grabbing and swinging a hard alloy rotary file head blank as claimed in claim 1, characterized in that: The front end of the movable guide rod passes through the movable clamping block and is fixed to the movable clamping block by a fixing nut.

4. A device for grabbing and swinging a hard alloy rotary file head blank as claimed in claim 1, characterized in that: The outer sleeve of the movable guide rod is provided with a limiting nut. When the movable clamping block moves to the maximum interval with the fixed clamping block, the limiting nut abuts against the fixed clamping block.

5. A device for grabbing and swinging a plate of a hard alloy rotary file head blank as claimed in claim 1, characterized in that: The bottom of the rotating motor is connected to a workbench or a workbench clamping frame.

6. A device for grabbing and swinging a hard alloy rotary file head blank as claimed in claim 1, characterized in that: The opposite sides of the lower parts of the fixed clamping block and the movable clamping block are provided with anti-slip surfaces.

7. A device for grabbing and swinging a plate of a hard alloy rotary file head blank as claimed in claim 6, characterized in that: The anti-skid surface is provided with anti-skid patterns on the opposite sides of the fixed clamp block and the lower part of the movable clamp block; or the opposite sides are provided with anti-skid pads.

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