Multi-angle tooling fixture for metallographic polishing and grinding machine

Abstract

The application belongs to the technical field of polishing machine clamps, and discloses a multi-angle tooling clamp for a metallographic polishing machine, which comprises a fixed disc body, a threaded column and a first gear movably connected to the inner cavity of one side of the top of the fixed disc body, and a connecting ring movably connected to the inner cavity of the middle of the fixed disc body. The cooperation between the threaded column, the fixed groove, the top frame mechanism, the second gear and other structures enables the device to simultaneously position metal joints in several fixed grooves. The metal joint is placed in the larger-diameter part of the fixed groove, with the bottom end of the metal joint in contact with the tabletop, so that the ball is in contact with the metal joint and extrudes the metal joint to move from the inside of the fixed groove to the smaller-diameter part of the fixed groove. When the sidewall of the metal joint is in contact with the inner walls on both sides of the fixed groove and the ball, the device completes the preliminary positioning and fixing of the metal joint.

Description

Technical Field

[0001] This invention belongs to the field of metallographic polishing machine fixture technology, specifically a multi-angle tooling fixture for metallographic polishing machines. Background Technology

[0002] With the development of materials technology and welding technology, the technology for joining dissimilar materials has become increasingly mature. The joining of materials with significantly different physical properties is also very popular at present. To study this kind of joining method, observing the weld of the material joint is an important step. Therefore, the preparation and polishing of samples are very important. When observing the metal joint at the connection point of a flexible pipe connection, it is often necessary to polish the end face of the connection point. The metallographic polishing machine is an important piece of equipment in the metallographic research process. It consists of a rotating component, a stationary component, and a polishing component.

[0003] Currently, when polishing metal joints, the metal joint needs to be placed in a fixed groove inside a fixed plate. Each fixed groove contains a threaded pin. By rotating the threaded pins, the metal joint is pressed together, thus achieving a fixing effect. However, since the fixed plate often has multiple fixed grooves and corresponding threaded pins, turning the threaded pins when polishing multiple metal joints simultaneously consumes a lot of time, making it inconvenient to use. Therefore, a multi-angle tooling fixture for metallographic polishing machines is proposed to solve the problems mentioned in the background technology. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention provides a multi-angle tooling fixture for a metallographic polishing machine, which solves the problem that fixing multiple metal joints requires turning multiple threaded top pins, which is time-consuming and inconvenient for users.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle tooling fixture for a metallographic polishing machine, comprising a fixed disk body, a threaded column and a first gear being movably engaged in the inner cavity on one side of the top of the fixed disk body, a connecting ring being movably connected in the inner cavity of the middle of the fixed disk body, a second gear being fixedly connected to the outer surface of the connecting ring, a connecting bracket being fixedly connected to the outer surface of the connecting ring at equal angles, a fixing groove being formed at equal angles inside the fixed disk body, a top frame mechanism being fixedly connected to the end of the connecting bracket away from the connecting ring, and a support mechanism being fixedly connected to the inner cavity of the fixed disk body at equal angles.

[0006] The top frame mechanism includes a sealing cylinder, the middle part of which is fixedly connected to the connecting bracket on the side near the connecting bracket, an arc-shaped plug rod is movably connected to the inner cavity of the sealing cylinder, an arc-shaped spring is sleeved on the outer surface of the arc-shaped plug rod, an arc-shaped pressure plate is fixedly connected to the end of the arc-shaped spring away from the sealing cylinder, and a ball bearing is movably engaged on the side of the arc-shaped pressure plate away from the sealing cylinder.

[0007] Preferably, the support mechanism includes a connecting pipe and a through hole. The connecting pipe is fixedly connected to the inner cavity of the fixed plate body at equal angles in a ring. An arc-shaped limiting rod is fixedly connected to the side of the arc-shaped pressure plate away from the ball bearing. A tension spring is movably connected to the inner cavity of the fixed plate body at equal angles in a ring. A supporting vertical rod is sleeved on the outer surface of the tension spring. A through hole is opened at the top of the fixed plate body.

[0008] Preferably, one end of the threaded post is movably engaged with the inner cavity of the fixed disk body, the end of the threaded post away from the connecting ring is located on the outer side of the fixed disk body and has an internal hexagonal hole, and the side of the threaded post near the first gear is threaded.

[0009] Preferably, the surfaces of the threads of the first gear and the threaded column are both located in the inner cavity of the fixed disk body, and the first gear is engaged with the threaded column.

[0010] Preferably, the second gear and the first gear are at the same horizontal level, the second gear is located above the connecting bracket, the second gear and the first gear are meshed, and the second gear is movably connected inside the fixed disc body.

[0011] Preferably, the connecting bracket is movably connected inside the fixed disc body, one end of the arc-shaped plug rod located inside the sealing cylinder is interference-fitted with the inner cavity of the sealing cylinder, and both ends of the arc-shaped spring are fixedly connected to the sealing cylinder and the arc-shaped pressure plate, respectively.

[0012] Preferably, the ball bearing and the inner wall of the fixing groove near the arc-shaped pressure plate are on the same vertical plane, and there is a gap between the arc-shaped pressure plate and the inner wall of the fixing groove near the arc-shaped pressure plate. The diameter of the inner wall of the fixing groove near the arc-shaped pressure plate is larger than the diameter of the inner wall away from the arc-shaped pressure plate.

[0013] Preferably, the end of the connecting pipe away from the supporting vertical rod passes through the inner wall of the sealing cylinder and communicates with the interior of the sealing cylinder, and the arc-shaped limiting rod is movably connected inside the connecting bracket.

[0014] Preferably, the space within the inner cavity of the fixed disk body where the supporting vertical rod is located forms a cavity, and the top and bottom ends of the supporting vertical rod are fixedly connected to the tension spring and the fixed disk body, respectively. The cavity is connected to the inner cavity of the sealing cylinder through a connecting pipe.

[0015] Preferably, one end of the bottom of the support rod passes through the bottom of the fixed plate body and extends to the lower part of the fixed plate body, one end of the top of the tension spring is interference-fitted with the inner cavity of the fixed plate body, and the inner cavity of the fixed plate body located above the tension spring is connected to the outside through a through hole.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention utilizes the cooperation between structures such as threaded column, fixed groove, top frame mechanism, and second gear to enable the device to simultaneously position metal joints in several fixed grooves. By placing the metal joint in the larger diameter part of the fixed groove and ensuring that one end of the metal joint contacts the table, the threaded column is rotated, causing the first gear to rotate. The cooperation between the first and second gears causes the second gear to rotate the connecting ring and connecting bracket, thereby causing the top frame mechanism to rotate. This causes the ball bearings to contact the metal joint and compress it, moving it towards the smaller diameter part of the fixed groove. When the sidewall of the metal joint contacts the inner walls of both sides of the fixed groove and the ball bearings, the device completes the initial positioning and fixing of the metal joint.

[0018] This invention achieves a good fixing effect on the metal joint through the cooperation between the sealing cylinder, the arc-shaped plug rod, the arc-shaped spring, and the ball bearing. By moving the connecting bracket, the ball bearing will be unable to move further due to the compression with the metal joint, while the sealing cylinder will continue to move. At this time, the arc-shaped plug rod will move relatively away from the ball bearing inside the sealing cylinder. The arc-shaped spring will be compressed, which will give the arc-shaped pressure plate and the ball bearing a tendency to move towards the metal joint, thereby achieving a good fixing effect on the metal joint.

[0019] This invention, through the cooperation of structures such as connecting pipes, top frame mechanism, cavity, and tension spring, enables the device to prevent the bottom of the fixed plate from being at the same height as the bottom of the metal joint during polishing. As the arc-shaped plug moves away from the ball bearing inside the sealing cylinder, the gas inside the sealing cylinder is compressed and transported to the cavity through the connecting pipe. The increased pressure inside the cavity then pushes the tension spring upward and eventually retracts into the interior of the fixed plate body, leaving only the metal joint in contact with the tabletop. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the top cross-sectional structure of the threaded column of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a top cross-sectional view of the pipe connection point of the present invention.

[0024] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0025] Figure 6 This is a side sectional view of the supporting vertical rod of the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0027] Figure 8 This is an external view of the internal structure of the present invention;

[0028] Figure 9 This is an exploded view of the connecting bracket of the present invention.

[0029] In the diagram: 1. Fixed disc body; 2. Threaded column; 3. First gear; 4. Second gear; 5. Connecting ring; 6. Connecting bracket; 7. Top frame mechanism; 701. Sealing cylinder; 702. Arc-shaped plug rod; 703. Arc-shaped spring; 704. Arc-shaped pressure plate; 705. Ball bearing; 8. Support mechanism; 801. Connecting pipe; 802. Arc-shaped limit rod; 803. Supporting vertical rod; 804. Tension spring; 805. Cavity; 806. Through hole; 9. Fixed groove. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1 to 9As shown, the present invention provides a multi-angle tooling fixture for a metallographic polishing machine, including a fixed plate body 1. A threaded column 2 and a first gear 3 are movably engaged in the inner cavity of one side of the top of the fixed plate body 1. A connecting ring 5 is movably connected to the inner cavity of the middle part of the fixed plate body 1. A second gear 4 is fixedly connected to the outer surface of the connecting ring 5. A connecting bracket 6 is fixedly connected to the outer surface of the connecting ring 5 at equal angles. A fixing groove 9 is opened at equal angles in the inner cavity of the fixed plate body 1. A top frame mechanism 7 is fixedly connected to the end of the connecting bracket 6 away from the connecting ring 5. A support mechanism 8 is fixedly connected to the inner cavity of the fixed plate body 1 at equal angles.

[0032] The top frame mechanism 7 includes a sealing cylinder 701. The middle part of the sealing cylinder 701 near the connecting bracket 6 is fixedly connected to the connecting bracket 6. An arc-shaped plug rod 702 is movably connected to the inner cavity of the sealing cylinder 701. An arc-shaped spring 703 is sleeved on the outer surface of the arc-shaped plug rod 702. An arc-shaped pressure plate 704 is fixedly connected to the end of the arc-shaped spring 703 away from the sealing cylinder 701. A ball bearing 705 is movably engaged on the side of the arc-shaped pressure plate 704 away from the sealing cylinder 701. By placing the metal connector in the larger diameter part inside the fixing groove 9, and making the bottom end of the metal connector... The desktop contacts the rotating threaded column 2, which rotates and drives the first gear 3 to rotate. At this time, through the cooperation between the first gear 3 and the second gear 4, the second gear 4 will drive the connecting ring 5 and the connecting bracket 6 to rotate, thereby causing the top frame mechanism 7 to rotate. This causes the ball 705 to contact the metal joint and squeeze the metal joint to move towards the smaller diameter of the fixed groove 9. When the side wall of the metal joint contacts the inner wall of both sides of the fixed groove 9 and the ball 705, the device completes the initial positioning and fixing of the metal joint.

[0033] It is worth noting here that the metal connector is connected to a flexible hose and the connection between the metal connector and the flexible hose is detachable. When performing metallographic testing on the metal connector, the operator can remove the metal connector. The metal connector can be cylindrical or polygonal, and can be placed inside the fixing groove 9.

[0034] It is worth noting that the top of the fixed plate body 1 is connected to the rotating assembly below the metallographic polishing machine by bolts.

[0035] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and 9As shown, the support mechanism 8 includes a connecting pipe 801 and a through hole 806. The connecting pipe 801 is fixedly connected to the inner cavity of the fixed plate body 1 at an equal angle. An arc-shaped limiting rod 802 is fixedly connected to the side of the arc-shaped pressure plate 704 away from the ball 705. A tension spring 804 is movably connected to the inner cavity of the fixed plate body 1 at an equal angle. A support vertical rod 803 is sleeved on the outer surface of the tension spring 804. A through hole 806 is opened at the top of the fixed plate body 1. The arc-shaped plug rod 702 will move relative to the side away from the ball 705 inside the sealing cylinder 701. At the same time, it will also compress the gas inside the sealing cylinder 701 and transport it to the inside of the cavity 805 through the inside of the connecting pipe 801. At this time, the increased pressure inside the cavity 805 will push the tension spring 804 to move upward and finally retract into the inside of the fixed plate body 1. At this time, only the metal joint is in contact with the table.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 8 As shown, one end of the threaded column 2 is movably engaged with the inner cavity of the fixed disk body 1. The end of the threaded column 2 away from the connecting ring 5 is located on the outer side of the fixed disk body 1 and has an internal hexagonal hole. The side of the threaded column 2 near the first gear 3 is threaded. The surfaces of the threads of the first gear 3 and the threaded column 2 are both located in the inner cavity of the fixed disk body 1. The first gear 3 is meshed with the threaded part of the threaded column 2. The second gear 4 is at the same horizontal height as the first gear 3. The second gear 4 is located above the connecting bracket 6 and is meshed with the first gear 3. The second gear 4 is movably connected inside the fixed disk body 1. Through the cooperation between the threaded column 2, the first gear 3, the second gear 4 and the connecting bracket 6, the operator only needs to rotate the threaded column 2 once to simultaneously drive multiple connecting brackets 6 to push the top frame mechanism 7 to position and initially fix the metal joint inside the fixing groove 9, which facilitates the use of the equipment.

[0037] like Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9As shown, the connecting bracket 6 is movably connected inside the fixed plate body 1. One end of the arc-shaped plug rod 702 located inside the sealing cylinder 701 is interference-fitted with the inner cavity of the sealing cylinder 701. Both ends of the arc-shaped spring 703 are fixedly connected to the sealing cylinder 701 and the arc-shaped pressure plate 704, respectively. The ball bearing 705 and the inner wall of the fixing groove 9 near the arc-shaped pressure plate 704 are on the same vertical plane. A gap is left between the arc-shaped pressure plate 704 and the inner wall of the fixing groove 9 near the arc-shaped pressure plate 704. The inner wall of the fixing groove 9 near the arc-shaped pressure plate 704... The diameter is larger than the diameter of the inner wall of the end away from the arc-shaped pressure plate 704; by moving the connecting bracket 6, the ball 705 will be unable to continue moving due to the compression with the metal joint, while the sealing cylinder 701 will continue to move. At this time, the arc-shaped plug rod 702 will move relatively away from the ball 705 inside the sealing cylinder 701. At this time, the arc-shaped spring 703 will be compressed, thereby giving the arc-shaped pressure plate 704 and the ball 705 a tendency to move towards the metal joint, thus achieving a good fixing effect on the metal joint.

[0038] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and 9 As shown, the end of the connecting pipe 801 away from the supporting vertical rod 803 penetrates the inner wall of the sealing cylinder 701 and communicates with the interior of the sealing cylinder 701. The arc-shaped limiting rod 802 is movably connected inside the connecting bracket 6. The space in the inner cavity of the fixed plate body 1 where the supporting vertical rod 803 is located forms a cavity 805. The top and bottom ends of the supporting vertical rod 803 are fixedly connected to the tension spring 804 and the fixed plate body 1, respectively. The cavity 805 communicates with the inner cavity of the sealing cylinder 701 through the connecting pipe 801. The bottom end of the supporting vertical rod 803 penetrates the bottom of the fixed plate body 1 and extends to the bottom of the fixed plate body 1. The top end of the tension spring 804... One end of the part is interference-fitted with the inner cavity of the fixed plate body 1. The inner cavity of the fixed plate body 1, located above the tension spring 804, is connected to the outside through the through hole 806. The design of the through hole 806 ensures the balance of air pressure in the inner cavity of the fixed plate body 1 on the top side of the tension spring 804 when the tension spring 804 moves upward, thereby reducing the resistance of the tension spring 804 when it moves upward. Through the design of the support rod 803, when the device is reset, the tension spring 804 will be reset under the action of the support rod 803 and lift the fixed plate body 1, so as to facilitate the polishing operation of the metal joint on the next side by the operator.

[0039] It is worth noting that the tension between the multiple support rods 803 is greater than the overall weight of the device, which facilitates the subsequent reset of the device and lifts the fixed plate body 1 to leave a gap with the table, thereby preventing the bottom of the grinding plate fixed plate body 1 from contacting and causing damage to the fixed plate body 1.

[0040] Working principle and usage process of this invention:

[0041] First, the operator places the metal connector inside the larger diameter section of the fixing groove 9, ensuring that one bottom end of the metal connector contacts the table. Then, the operator inserts a hex wrench into the hexagonal opening of the threaded post 2 and rotates the hex wrench to rotate the threaded post 2, which in turn rotates the first gear 3. At this time, through the cooperation between the first gear 3 and the second gear 4, the second gear 4 will drive the connecting ring 5 and the connecting bracket 6 to rotate, thereby causing the top frame mechanism 7 to rotate. This causes the ball bearing 705 to contact the metal connector and press the metal connector inside the fixing groove 9 towards the smaller diameter section. When the side wall of the metal connector contacts the inner walls on both sides of the fixing groove 9 and the ball bearing 705, the device completes the initial positioning and fixing operation of the metal connector.

[0042] As the connecting bracket 6 continues to move, the ball 705 will be unable to move further due to the compression with the metal joint. At the same time, the sealing cylinder 701 will continue to move. At this time, the arc-shaped plug rod 702 will move away from the ball 705 inside the sealing cylinder 701. The arc-shaped spring 703 will be compressed, which will give the arc-shaped pressure plate 704 and the ball 705 a tendency to move towards the metal joint, thereby achieving a good fixing effect on the metal joint and completing the operation.

[0043] As the arc-shaped stopper 702 moves relative to the side away from the ball 705 inside the sealing cylinder 701, the gas inside the sealing cylinder 701 is compressed and transported to the cavity 805 through the connecting pipe 801. At this time, the increased pressure inside the cavity 805 will push the tension spring 804 to move upward and eventually retract into the fixed plate body 1. At this time, only the metal joint is in contact with the table, completing the operation.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-angle tooling fixture for a metallographic polishing machine, comprising a fixed disk body (1), characterized in that: The inner cavity on one side of the top of the fixed disk body (1) is movably connected to a threaded column (2) and a first gear (3). The inner cavity in the middle of the fixed disk body (1) is movably connected to a connecting ring (5). The outer surface of the connecting ring (5) is fixedly connected to a second gear (4). The outer surface of the connecting ring (5) is fixedly connected to a connecting bracket (6) at equal angles. The inner cavity of the fixed disk body (1) is provided with a fixing groove (9) at equal angles. The end of the connecting bracket (6) away from the connecting ring (5) is fixedly connected to a top frame mechanism (7). The inner cavity of the fixed disk body (1) is fixedly connected to a support mechanism (8) at equal angles. The top frame mechanism (7) includes a sealing cylinder (701), the middle part of which is fixedly connected to the connecting bracket (6) on the side near the connecting bracket (6), an arc-shaped plug rod (702) is movably connected to the inner cavity of the sealing cylinder (701), an arc-shaped spring (703) is sleeved on the outer surface of the arc-shaped plug rod (702), an arc-shaped pressure plate (704) is fixedly connected to the end of the arc-shaped spring (703) away from the sealing cylinder (701), and a ball bearing (705) is movably engaged on the side of the arc-shaped pressure plate (704) away from the sealing cylinder (701).

2. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: The support mechanism (8) includes a connecting pipe (801) and a through hole (806). The connecting pipe (801) is fixedly connected to the inner cavity of the fixed plate body (1) at equal angles. An arc-shaped limiting rod (802) is fixedly connected to the side of the arc-shaped pressure plate (704) away from the ball (705). A tension spring (804) is movably connected to the inner cavity of the fixed plate body (1) at equal angles. A support vertical rod (803) is sleeved on the outer surface of the tension spring (804). A through hole (806) is opened at the top of the fixed plate body (1).

3. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: One end of the threaded post (2) is movably engaged with the inner cavity of the fixed disk body (1). The end of the threaded post (2) away from the connecting ring (5) is located on the outer side of the fixed disk body (1) and has an internal hexagonal hole. The side of the threaded post (2) near the first gear (3) is threaded.

4. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: The surfaces of the threads of the first gear (3) and the threaded column (2) are both located in the inner cavity of the fixed disk body (1), and the first gear (3) and the threaded column (2) are meshed and connected.

5. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: The second gear (4) and the first gear (3) are at the same horizontal level. The second gear (4) is located above the connecting bracket (6). The second gear (4) and the first gear (3) are meshed and connected. The second gear (4) is movably connected inside the fixed disk body (1).

6. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: The connecting bracket (6) is movably connected inside the fixed disk body (1). One end of the arc-shaped plug rod (702) located inside the sealing cylinder (701) is interference-fitted with the inner cavity of the sealing cylinder (701). The two ends of the arc-shaped spring (703) are fixedly connected to the sealing cylinder (701) and the arc-shaped pressure plate (704) respectively.

7. The multi-angle tooling fixture for a metallographic polishing machine according to claim 1, characterized in that: The ball (705) and the inner wall of the fixing groove (9) near the arc-shaped pressure plate (704) are on the same vertical plane. There is a gap between the arc-shaped pressure plate (704) and the inner wall of the fixing groove (9) near the arc-shaped pressure plate (704). The diameter of the inner wall of the fixing groove (9) near the arc-shaped pressure plate (704) is larger than the diameter of the inner wall away from the arc-shaped pressure plate (704).

8. The multi-angle tooling fixture for a metallographic polishing machine according to claim 2, characterized in that: The end of the connecting pipe (801) away from the supporting vertical rod (803) passes through the inner wall of the sealing cylinder (701) and communicates with the interior of the sealing cylinder (701). The arc-shaped limiting rod (802) is movably connected to the interior of the connecting bracket (6).

9. The multi-angle tooling fixture for a metallographic polishing machine according to claim 2, characterized in that: The space inside the fixed disk body (1) where the support rod (803) is located forms a cavity (805). The top and bottom ends of the support rod (803) are fixedly connected to the tension spring (804) and the fixed disk body (1) respectively. The cavity (805) is connected to the inner cavity of the sealing cylinder (701) through the connecting pipe (801).

10. The multi-angle tooling fixture for a metallographic polishing machine according to claim 2, characterized in that: One end of the bottom of the support rod (803) passes through the bottom of the fixed plate body (1) and extends to the bottom of the fixed plate body (1). One end of the top of the tension spring (804) is interference-fitted with the inner cavity of the fixed plate body (1). The inner cavity of the fixed plate body (1) located above the tension spring (804) is connected to the outside through the through hole (806).

Images