Self-adaptive clamping device for cutting cake-shaped metallographic sample block
By designing an adaptive clamping device containing rotary press and screw, the problem that the clamping device of existing metallographic cutting machines cannot be flexibly adjusted is solved, and the rapid and accurate clamping and cutting of cake-shaped metallographic blocks of different sizes and thicknesses is achieved, ensuring cutting accuracy and equipment safety.
Patent Information
- Application Number
- CN202421310062.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The clamping devices of existing metallographic cutting machines cannot flexibly adjust their position within the vertical range, resulting in the inability to adapt to cake-shaped metallographic blocks of different sizes and thicknesses, resulting in the sample being clamped, sliding or falling off, affecting the cutting accuracy and equipment safety.
An adaptive clamping device for cutting cake-shaped metallographic blocks is designed, including components such as base, vertical rod, press plate, rotary press and screw. Through the cooperation of the rotary screw and nut, the flexible up and down movement of the press plate and the arc matching of the rotary press are achieved, ensuring that the pressing force is vertically downward.
Quick and accurate clamping of cake-shaped metallographic blocks of different diameters and thicknesses is achieved to prevent sample blocks from falling off, ensure cutting accuracy, and reduce the risk of equipment damage.
Smart Images
Figure CN222553358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metallographic cutting, in particular to a self-adaptive clamping device for cutting a pancake-shaped metallographic sample block. Background Art
[0002] The mechanical properties of metal parts are related to their chemical composition and are also closely related to their own metallographic structure. Metallographic inspection is an indispensable and important means to control and evaluate product quality. When performing metallographic analysis on metal materials, the sample needs to go through a series of pre-processing steps such as cutting, mounting, grinding, polishing, and etching. At present, the clamping device provided by the metallographic cutting machine is suitable for metallographic cutting of a certain diameter and thickness. The clamping device cannot flexibly adjust its position within the vertical range, resulting in limited space for placing the sample in the clamping device. For pie-shaped metallographic specimens of different sizes and thicknesses, they are often not clamped tightly or even cannot be clamped, making it impossible to clamp and cut normally. If the sample is not clamped tightly, it is easy to slide or fall off during cutting, making it impossible to accurately cut the sample and may damage the cutting equipment.
[0003] In view of the above problems existing in the prior art, the utility model designs and manufactures a self-adaptive clamping device for cutting a pancake-shaped metallographic specimen based on many years of design and use experience in the relevant field to overcome the above defects. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the utility model provides an adaptive clamping device for cutting pie-shaped metallographic specimens, which can flexibly adjust the position within the vertical range, quickly and accurately clamp pie-shaped metallographic specimens of different diameters and thicknesses, avoid the pie-shaped metallographic specimens from falling off, and thus accurately cut them.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0006] A self-adaptive clamping device for cutting a pancake-shaped metallographic specimen comprises a base, and vertical rods are arranged on both sides of the base;
[0007] Two pressing plates, one end of each pressing plate is rotatably connected to the upper end of each vertical rod, a workpiece can be placed between the two vertical rods, and the other end of each pressing plate is located above the workpiece;
[0008] Two rotating pressing blocks, the lower surface of the rotating pressing block is an arc-shaped convex surface, and the upper surface of the pressing plate is provided with an arc-shaped groove, and the arc-shaped groove matches the arc-shaped convex surface of the rotating pressing block;
[0009] A through hole is provided at the bottom of the arc-shaped groove, a screw is provided in the through hole, and the lower end of the screw is fixed on the base;
[0010] The rotating pressure block is provided with a connecting hole, and the rotating pressure block is sleeved on the screw rod through the connecting hole. The screw rod is provided with a threaded pressing nut, and the pressing nut is located above the rotating pressure block. The rotation of the pressing nut can drive the pressing plate to press down through the rotating pressure block.
[0011] Preferably, a threaded rising nut is provided on the screw rod, and the rising nut is located below the pressing plate, and the rotation of the rising nut can drive the pressing plate to rise.
[0012] Preferably, the diameter of the screw is the same as the diameter of the connecting hole, and the diameter of the through hole is larger than the diameter of the screw.
[0013] Preferably, two vertical rods are provided on one side of the base, and the two vertical rods on one side of the base are symmetrically arranged on both sides of the pressure plate, and also include a rotating shaft, one end of the pressure plate is rotatably connected to the upper ends of the two vertical rods through the rotating shaft, and the other side of the base is similarly arranged.
[0014] Preferably, the center line of the arc-shaped convex surface of the rotating pressing block is parallel to the center line of the rotating shaft.
[0015] Preferably, the upper surface of the rotating pressing block is a plane.
[0016] Preferably, a support platform is provided on both sides of the base, and the support platform is located below the pressure plate.
[0017] Preferably, a gap is left between the two support platforms.
[0018] Preferably, the pressure plate is provided with a downward protrusion at one end above the workpiece.
[0019] Preferably, the raised bottom of the pressing plate at one end above the workpiece is an arc-shaped surface.
[0020] The utility model is beneficial in that:
[0021] 1. The utility model is provided with a rotary pressing block with an arc-shaped convex surface on the lower surface. When the pressing plate is at different heights, the arc-shaped convex surface of the rotary pressing block is always in contact with the groove on the pressing plate. The rotary pressing block and the screw are in a vertical state, ensuring that the pressing plate is subjected to a vertical downward pressing force to press the pancake-shaped metallographic sample, thereby preventing the pancake-shaped metallographic sample from falling off and achieving precise cutting.
[0022] 2. The utility model is provided with a screw rod, a pressing nut and a rising nut. Rotating the pressing nut can drive the pressure plate to press down by rotating the pressure block, thereby pressing the pancake-shaped metallographic specimen. Rotating the rising nut can drive the pressure plate to rise, change the distance between the pressure plate and the support table, and cooperate with the pressing nut to fix the pressure plate. Pancake-shaped metallographic specimens of different diameters and thicknesses can be placed on the support table, thereby realizing adaptive and rapid clamping of the pancake-shaped metallographic specimen.
[0023] 3. The utility model has a simple structure, is flexible and reliable, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is the front view of an adaptive clamping device for cutting a pancake-shaped metallographic specimen.
[0025] Figure 2 A top view of an adaptive clamping device for cutting a pie-shaped metallographic specimen.
[0026] In the figure: 1-base, 2-support table, 3-vertical pole, 4-pressing plate, 5-rising nut, 6-protrusion, 7-rotating pressing block, 8-screw, 9-pressing nut, 10-pin shaft, 11-nut. DETAILED DESCRIPTION
[0027] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.
[0028] like Figure 1 , 2 As shown, a self-adaptive clamping device for cutting a pancake-shaped metallographic specimen comprises a base 1, vertical rods 3 and two pressure plates 4 are arranged on both sides of the base 1, one end of the two pressure plates 4 is rotatably connected to the upper end of the vertical rods 3 respectively, a workpiece can be placed between the two vertical rods 3, the other ends of the two pressure plates 4 are located above the workpiece, two rotating pressure blocks 7, the lower surface of the rotating pressure block 7 is an arc-shaped convex surface, the upper surface of the pressure plate 4 is provided with an arc-shaped groove, the arc-shaped groove matches the arc-shaped convex surface of the rotating pressure block 7, a through hole is arranged at the bottom of the arc-shaped groove, a screw 8 is arranged in the through hole, the lower end of the screw 8 is fixed on the base 1, a connecting hole is arranged on the rotating pressure block 7, the rotating pressure block 7 is sleeved on the screw 8 through the connecting hole, a threaded pressing nut 9 is arranged on the screw 8, the pressing nut 9 is arranged above the rotating pressure block 7, and the rotation of the pressing nut 9 can drive the pressing plate 4 to press down through the rotating pressure block 7.
[0029] The screw rod 8 is provided with a threaded rising nut 5, and the rising nut 5 is arranged under the pressure plate 4. The rotation of the rising nut 5 can drive the pressure plate 4 to rise. The diameter of the screw rod 8 is equal to the diameter of the connecting hole of the rotating pressure block 7, and the diameter of the through hole is larger than the diameter of the screw 8. Two vertical rods 3 are provided on one side of the base 1. The two vertical rods 3 on one side of the base 1 are symmetrically arranged on both sides of the pressure plate 4, and also include a rotating shaft. One end of the pressure plate 4 is rotatably connected to the upper ends of the two vertical rods 3 through the rotating shaft. The rotating shaft is composed of a pin shaft 10 and a nut 11 threadedly connected to the pin shaft 10. One end of the pressure plate 4 and the upper ends of the two vertical rods 3 are provided with a The circular hole through which the pin shaft 10 passes, the pin shaft 10 passes through the circular hole on the upper end of the vertical rod 3 on one side of the pressure plate 4, the circular hole at one end of the pressure plate 4 and the circular hole on the upper end of the vertical rod 3 on the other side of the pressure plate 4 and is threadedly fixed with a nut 11. The other side of the base 1 is arranged in the same way. The center line of the arc-shaped convex surface of the rotating pressure block 7 is parallel to the center line of the rotating shaft. The upper surface of the rotating pressure block 7 is a plane. Support platforms 2 are provided on both sides of the base. The support platforms 2 are located below the pressure plate 4. A gap is left between the two support platforms 2. The pressure plate 4 is located above the workpiece and is provided with a downward protrusion 6. The bottom of the protrusion 6 at the upper end of the pressure plate 4 is an arc-shaped surface.
[0030] The pressing plate 4 of the utility model is rotatably connected with the vertical rod 3, and the rotating pressing nut 9 can press the rotating pressing block 7 downward, and the pressing plate 4 is pressed downward by the rotating pressing block 7, so that the pressing plate 4 presses the pancake-shaped metallographic sample and accurately clamps the pancake-shaped metallographic sample. The rotating ascending nut 5 can make the pressing plate 4 rise, realize the rising and falling of the pressing plate 4, and change the distance between the support platform 2 and the pressing plate 4, so as to accurately clamp the pancake-shaped metallographic samples of different diameters and thicknesses. The diameter of the connecting hole of the rotating pressing block 7 is equal to the diameter of the screw 8. When the pressing plate 4 rotates up and down, the rotating pressing block 7 and the screw 8 are always in a vertical state. The arc-shaped convex surface of the rotating pressing block 7 abuts against the groove on the pressing plate 4, so that the pressing force exerted on the pressing plate 4 is vertically downward, thereby pressing the pancake-shaped metallographic sample so that the pancake-shaped metallographic sample will not fall off during cutting. The arc-shaped surface of the protrusion 6 can make the pressing plate 4 better press the pancake-shaped metallographic sample.
[0031] Specific operation process
[0032] The following operations are performed on both sides of the base 1. The rising nut 5 on the screw 8 is rotated, and the rising nut 5 rises, pushing the pressing plate 4 up until the distance between the protrusion 6 on the pressing plate 4 and the support table 2 is greater than the thickness of the pancake-shaped metallographic specimen, and then the pancake-shaped metallographic specimen is placed on the support table 2. After adjusting the position of the pancake-shaped metallographic specimen, the rising nut 5 on the screw 8 is rotated, and the rising nut 5 moves downward, and then the pressing nut 9 is rotated, and the pressing nut 9 moves downward, so that the rotating pressing block 7 drives the pressing plate 4 to press down until the protrusion 6 on the pressing plate 4 abuts against the pancake-shaped metallographic specimen. After the pressing plate 4 presses the pancake-shaped metallographic specimen, the rising nut 5 rotates and rises to cooperate with the pressing nut 9 to fix the pressing plate 4. Under the action of the pressing nut 9, the rotating pressing block 7 is pressed tightly on the pressing plate 4, and the rotating pressing block 7 and the screw 8 are always in a vertical state. The arc convex surface of the rotating pressing block 7 abuts against the groove on the pressing plate 4, so that the pressing force on the pressing plate 4 is vertically downward, and the pressing plate 4 can quickly and accurately clamp the pancake-shaped metallographic specimen.
[0033] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.
Claims
1. An adaptive clamping device for cutting a pancake-shaped metallographic specimen, characterized in that: It comprises a base (1), and vertical poles (3) are provided on both sides of the base (1); Two pressing plates (4), one end of each pressing plate (4) is rotatably connected to the upper end of each vertical rod (3), a workpiece can be placed between the two vertical rods (3), and the other end of each pressing plate (4) is located above the workpiece; Two rotating pressing blocks (7), wherein the lower surface of the rotating pressing block (7) is an arc-shaped convex surface, and the upper surface of the pressing plate (4) is provided with an arc-shaped groove, and the arc-shaped groove matches the arc-shaped convex surface of the rotating pressing block (7); A through hole is provided at the bottom of the arc-shaped groove, a screw rod (8) is provided in the through hole, and the lower end of the screw rod (8) is fixed on the base (1); The rotating pressure block (7) is provided with a connecting hole, and the rotating pressure block (7) is sleeved on the screw rod (8) through the connecting hole. The screw rod (8) is threadedly connected with a pressing nut (9), and the pressing nut (9) is located above the rotating pressure block (7). The pressing nut (9) can rotate to drive the pressure plate (4) to be pressed downward through the rotating pressure block (7).
2. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: A lifting nut (5) is threadedly connected to the screw rod (8), and the lifting nut (5) is located below the pressing plate (4). The lifting nut (5) can drive the pressing plate (4) to rise when it rotates.
3. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: The diameter of the screw rod (8) is equal to the diameter of the connecting hole, and the diameter of the through hole is larger than the diameter of the screw rod (8).
4. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: Two vertical rods (3) are arranged on one side of the base (1), and the two vertical rods (3) on one side of the base (1) are symmetrically arranged on both sides of the pressure plate (4), and also include a rotating shaft, one end of the pressure plate (4) is rotatably connected to the upper ends of the two vertical rods (3) through the rotating shaft, and the other side of the base (1) is similarly arranged.
5. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 4, characterized in that: The center line of the arc-shaped convex surface of the rotating pressing block (7) is parallel to the center line of the rotating shaft.
6. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: The upper surface of the rotating pressing block (7) is a plane.
7. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: A support platform (2) is provided on both sides of the base, and the support platform (2) is located below the pressing plate (4).
8. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 7, characterized in that: A gap is left between the two support platforms (2).
9. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 1, characterized in that: The pressing plate (4) is provided with a downward protrusion (6) at the end above the workpiece.
10. The self-adaptive clamping device for cutting a pancake-shaped metallographic specimen according to claim 9, characterized in that: The bottom of the protrusion (6) of the pressing plate (4) located at the upper end of the workpiece is an arc-shaped surface.