PCD (Poly Crystal Diamond) composite sheet welding strength testing device

Abstract

The utility model discloses a PCD (Poly Crystal Diamond) composite sheet welding strength testing device which comprises a detection seat, a pressing column is connected to the detection seat in a sliding manner, one end of the pressing column is connected with a pressure sensor, a containing groove is formed in the detection seat, a placing block is connected to the containing groove, a connecting block is connected to the placing block, and a rotating shaft is connected to the connecting block. The rotating shaft is connected with a limiting mechanism used for limiting overturning of the placing block, the detection seat is connected with a hinge frame, the hinge frame is rotatably connected with a pressing strip, the pressing column is provided with a side groove, the detection seat is connected with a limiting piece, the limiting piece is slidably connected to the side groove, the limiting mechanism comprises a connecting strip, and the connecting strip is slidably connected to the detection seat. According to the utility model, the welding strength of the clad sheet can be easily measured by using the pressing column, the equipment can be repeatedly used, and the pressing column is propped against the center position of the clad sheet during testing, so that the stress uniformity is improved, and additional stress caused by improper clamping is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCD composite sheet welding, in particular to a PCD composite sheet welding strength testing device. Background Art

[0002] PCD composite sheets are ultra-hard composite materials made by sintering diamond powder and a cemented carbide matrix at high temperature and high pressure. They combine the high hardness and wear resistance of diamond with the impact toughness of cemented carbide and are widely used in geological exploration, oil drilling, and machining. The strength of the weld to the matrix directly affects the tool's service life and performance, making accurate assessment of the reliability of the weld joint crucial.

[0003] Testing the weld strength of PCD composite sheets primarily relies on destructive testing of the actual product after welding, requiring the finished product to be used directly as the test specimen. This method has significant drawbacks: First, the product cannot be reused due to damage after testing, resulting in significant material loss and high costs. Second, traditional testing equipment is complex and requires specialized tooling designed for different workpiece specifications, resulting in poor adaptability. Furthermore, improper clamping during testing can easily generate additional stress, leading to large measurement errors and making it difficult to accurately reflect the true performance of the welded joint.

[0004] Based on this, a PCD composite sheet welding strength testing device is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to propose a PCD composite sheet welding strength testing device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A PCD composite sheet welding strength testing device includes a detection seat, a pressing column is slidably connected to the detection seat, one end of the pressing column is connected to a pressure sensor, a receiving groove is provided on the detection seat, a placement block is connected to the storage groove, the placement block is connected to a connecting block, the connecting block is connected to a rotating shaft, and the rotating shaft is connected to a limiting mechanism for limiting the flipping of the placement block.

[0008] Preferably, the detection seat is connected to a hinged frame, and a pressing bar is rotatably connected to the hinged frame.

[0009] Preferably, a side groove is formed on the pressing column, and a limiting plate is connected to the detection seat, and the limiting plate is slidably connected to the side groove.

[0010] Preferably, the limiting mechanism includes a connecting bar, which is slidably connected to the detection seat, one end of the connecting bar is connected to a sleeve block, the sleeve block is sleeved on the rotating shaft, the detection seat is connected to a limiting block, and the other end of the connecting bar is connected to a protrusion.

[0011] Preferably, a sliding groove is provided on the detection seat, and the connecting strip is slidably connected to the sliding groove.

[0012] Preferably, the sleeve block is connected with an insertion rod, the detection seat is provided with a socket, and the insertion rod is slidably connected to the socket.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. This application adopts a pressing column structure, which can easily measure the welding strength of the composite sheet using the pressing column. The equipment is reusable. During the test, the pressing column abuts against the center of the composite sheet to improve the uniformity of force and avoid additional stress caused by improper clamping.

[0015] 2. This application adopts a detection seat structure, which can be used to easily perform welding operations on the composite sheet. An air avoidance space is set at the lower end of the detection seat to prevent the composite sheet from being pressed to a flat surface and then further pressurized. It supports multi-scenario testing and is suitable for testing PCD composite sheets of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows the overall structure of the testing device provided in accordance with an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the exploded structure of the connection of the pressing strip provided according to an embodiment of the present utility model is shown;

[0018] Figure 3 A schematic structural diagram of the connection of a pressure sensor provided according to an embodiment of the present utility model is shown.

[0019] Legend:

[0020] 1. Detection seat; 2. Slide; 3. Placement block; 4. Connecting strip; 5. Articulated frame; 6. Pressing strip; 7. Pressing column; 8. Limiting block; 9. Socket; 10. Storage slot; 11. Side slot; 12. Limiting piece; 13. Bump; 14. Sleeve block; 15. Connecting block; 16. Rotating shaft; 17. Insertion rod; 18. Pressure sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0023] A device for testing the welding strength of a PCD composite sheet comprises a detection seat 1, to which a pressing column 7 is slidably connected, and a pressure sensor 18 is connected at one end of the pressing column 7. When testing the welding strength, the pressure sensor 18 abuts against the composite sheet and, by increasing the pressure, forces the composite sheet and the detection seat 1 to separate. At the moment of separation, the pressure exerted on the pressure sensor 18 also changes, and this point is the ultimate welding strength of the composite sheet. A receiving groove 10 is provided on the detection seat 1, to which a placement block 3 is connected, to which a connecting block 15 is connected, to which a rotating shaft 16 is connected, and to which a limiting mechanism for limiting the flipping of the placement block 3 is connected is connected on the rotating shaft 16.

[0024] Specifically, such as Figure 1 As shown, the detection seat 1 is connected to a hinged frame 5, and a pressing bar 6 is rotatably connected to the hinged frame 5. The pressing bar 6 is provided to facilitate pressing the pressing column 7. This structure adopts the lever principle, which greatly improves the pressing efficiency, and the operator can perform the test operation manually.

[0025] Specifically, such as Figure 2 As shown, a side groove 11 is provided on the pressing column 7, and a limiting plate 12 is connected to the detection seat 1. The limiting plate 12 is slidably connected to the side groove 11. By setting the limiting plate 12, the pressing column 7 structure is limited, so that there is no structural separation between the pressing column 7 and the detection seat 1, thereby improving the structural stability of the pressing column 7 when moving up and down.

[0026] Specifically, such as Figure 2 and Figure 3 As shown, the limiting mechanism includes a connecting bar 4, which is slidably connected to the detection seat 1, and one end of the connecting bar 4 is connected to a sleeve block 14, which is sleeved on the rotating shaft 16. The detection seat 1 is connected to a limiting block 8, and the other end of the connecting bar 4 is connected to a protrusion 13. When the connecting bar 4 rises to the highest point, the protrusion 13 and the limiting block 8 contact each other. At this time, the limiting block 8 can limit the connecting bar 4 to prevent it from continuing to move up. When the connecting bar 4 drops to the lowest point, the lower end of the connecting bar 4 abuts against the slide groove 2.

[0027] Specifically, such as Figure 2As shown, a slide groove 2 is provided on the detection seat 1, and the connecting bar 4 is slidably connected to the slide groove 2. The slide groove 2 is provided to improve the stability of the connecting bar 4 in moving up and down.

[0028] Specifically, such as Figure 2 As shown, the sleeve block 14 is connected with an insertion rod 17, and the detection seat 1 is provided with a socket 9. The insertion rod 17 is slidably connected to the socket 9. By setting the insertion rod 17 and the socket 9, the position of the connecting strip 4 is further limited, so that the placement block 3 can maintain a stable state after being flipped back and forth.

[0029] To sum up, the PCD composite sheet welding strength testing device provided in this embodiment needs to weld the composite sheet to the bottom end of the detection seat 1 during testing. During welding, in order to ensure the stability of the welding plane, the detection seat 1 needs to be turned upside down. In order to avoid the pressing column 7 structure contacting the plane and causing the detection seat 1 to tilt, the placement block 3 needs to be flipped over and then re-connected with the pressing column 7, so that the placement block 3 contacts the ground. At this time, the welding surface of the detection seat 1 is in a horizontal state. After the welding of the composite sheet is completed, the placement block 3 is flipped over again so that the placement block 3 is stored in the storage groove 10. Then, by pressing down the pressing bar 6, the pressing column 7 is pressed by the pressing bar 6, so that the pressing column 7 presses down the composite sheet, forcing the composite sheet to separate from the detection seat 1, and the pressure change sensed by the pressure sensor 18 at the moment of separation is used to measure the welding strength of the PCD composite sheet.

[0030] The above description of the embodiments is intended to enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A PCD composite sheet welding strength testing device, comprising a detection seat (1), characterized in that: A pressing column (7) is slidably connected to the detection seat (1), one end of the pressing column (7) is connected to a pressure sensor (18), a receiving groove (10) is provided on the detection seat (1), a placement block (3) is connected to the receiving groove (10), the placement block (3) is connected to a connecting block (15), the connecting block (15) is connected to a rotating shaft (16), and the rotating shaft (16) is connected to a limiting mechanism for limiting the flipping of the placement block (3).

2. A PCD composite sheet welding strength testing device according to claim 1, characterized in that: The detection seat (1) is connected to a hinged frame (5), and a pressing bar (6) is rotatably connected to the hinged frame (5).

3. A PCD composite sheet welding strength testing device according to claim 1, characterized in that: The pressing column (7) is provided with a side groove (11), the detection seat (1) is connected with a limiting piece (12), and the limiting piece (12) is slidably connected to the side groove (11).

4. A PCD composite sheet welding strength testing device according to claim 1, characterized in that: The limiting mechanism comprises a connecting bar (4), the connecting bar (4) being slidably connected to the detection seat (1), one end of the connecting bar (4) being connected to a sleeve block (14), the sleeve block (14) being sleeved on a rotating shaft (16), the detection seat (1) being connected to a limiting block (8), and the other end of the connecting bar (4) being connected to a protrusion (13).

5. A PCD composite sheet welding strength testing device according to claim 4, characterized in that: A sliding groove (2) is provided on the detection seat (1), and the connecting strip (4) is slidably connected to the sliding groove (2).

6. A PCD composite sheet welding strength testing device according to claim 4, characterized in that: The sleeve block (14) is connected to an insertion rod (17), a socket (9) is provided on the detection seat (1), and the insertion rod (17) is slidably connected to the socket (9).

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