Ring-shaped workpiece post-forging quenching tooling fixture

Abstract

The utility model discloses a kind of annular workpiece forging post-quenching tooling clamps, it is mainly related to technical field. Including movable base, and the fixed plate for fixing annular workpiece, fixed shaft is equipped on movable base, sliding sleeve is slidably connected on fixed shaft, further include a plurality of first support rod and second support rod, the both ends of first support rod are respectively with the end of fixed plate and the end of fixed shaft rotatable connection, the both ends of second support rod are respectively with the other end of fixed plate and sliding sleeve rotatable connection, driving shaft that driving sliding sleeve is slid on fixed shaft is rotatably connected on movable base. The utility model has the beneficial effects that: solve the problem of current tooling clamp clamping multiple, improve the precision and efficiency of detecting annular forging roundness, reduce the labor intensity of artificial.

Description

Technical Field

[0001] This utility model relates to the technical field of tooling fixtures, specifically a tooling fixture for quenching annular workpieces after forging. Background Technology

[0002] Quenching is a method of localized hardening in which the surface layer of a steel part is hardened to a certain depth while the core remains unhardened.

[0003] In the process of quenching ring-shaped workpieces, tooling fixtures are needed to fix the ring-shaped workpieces so that they can be put into the quenching tank from the previous process to achieve quenching of the ring-shaped workpieces and obtain a surface with high hardness and high wear resistance. However, the current tooling fixtures require fixing bolts to lock the ring-shaped workpieces, which is relatively complicated to operate. Moreover, most of the existing quenching fixtures are of fixed size, and one type of quenching fixture can only be used for ring-shaped workpieces of one size, which to some extent increases the manufacturing cost required for tooling fixture replacement. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling fixture for quenching ring-shaped workpieces after forging, which solves the problem that current tooling fixtures cannot adapt to ring-shaped workpieces of different sizes, improves the efficiency of fixing ring-shaped workpieces, and reduces the manufacturing cost required for tooling fixture replacement.

[0005] To achieve the above objectives, the utility model employs the following technical solution: A fixture for quenching annular workpieces after forging includes a movable base and several fixing plates for fixing the annular workpieces. The movable base is provided with a fixed shaft, and a sliding sleeve is slidably connected to the fixed shaft. It also includes several first support rods and second support rods. The two ends of the first support rods are rotatably connected to one end of the fixing plate and the end of the fixed shaft, respectively. The two ends of the second support rods are rotatably connected to the other end of the fixing plate and the sliding sleeve, respectively. A drive shaft for driving the sliding sleeve to slide on the fixed shaft is rotatably connected to the movable base.

[0006] Furthermore, a spline shaft is provided on one side of the sliding sleeve, and a spline groove is provided at the end of the drive shaft to slide in contact with the spline shaft. The spline shaft is threadedly connected to the fixed shaft.

[0007] Furthermore, the fixed shaft is provided with a sliding groove that is slidably connected to the sliding sleeve, the end of the sliding sleeve is provided with an L-shaped block, the end of the spline shaft is provided with a groove that is rotatably connected to the L-shaped block, and the two sides of the L-shaped block are respectively in contact with the groove.

[0008] Furthermore, the drive shaft is provided with a driven wheel, and the driven wheel is provided with a plurality of radial grooves. A limiting groove is provided between two adjacent grooves. The movable base is provided with a drive motor, and the movable end of the drive motor is provided with a drive wheel. A lever and a limiting block are respectively provided on both sides of the drive wheel. The lever contacts the groove and drives the drive shaft to rotate on the movable base. The limiting block contacts the limiting groove and restricts the drive shaft from rotating on the movable base.

[0009] Furthermore, a bearing is provided between the drive shaft and the movable base.

[0010] Furthermore, the drive shaft is provided with a protrusion that contacts the bearing, and the movable base is provided with a mounting seat that contacts the bearing.

[0011] Furthermore, the fixing plate is arc-shaped and has several friction parts that contact the annular workpiece.

[0012] Furthermore, the friction part is made of silicon nitride ceramic material.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The sliding sleeve is driven by the drive shaft to slide on the fixed shaft. Since the two ends of the second connecting rod are rotatably connected to the other end of the fixed plate and the sliding sleeve respectively, the resulting component force acts on the fixed plate, causing the fixed plate to move outward. At the same time, since the two ends of the first support rod are rotatably connected to one end of the fixed plate and the end of the fixed shaft respectively, they guide the sliding of the fixed plate, so that the fixed plate moves outward in parallel, ensuring that the side of the fixed plate is in contact with the annular workpiece at the same time, increasing the contact area between the fixed plate and the annular workpiece, and improving the fixing effect of the tooling fixture. 2. By having several fixed plates simultaneously contact the annular workpiece, the friction generated by the contact between the two will restrict the movement of the annular workpiece relative to the fixed plates, thereby fixing the annular workpiece without the need for bolts, simplifying the operation steps for fixing the annular workpiece, and thus improving the efficiency of fixing the annular workpiece. At the same time, it can adapt to annular workpieces with different inner diameters, eliminating the need to manufacture tooling fixtures of different specifications, and reducing the cost required for tooling fixture replacement. 3. Through the cooperation between the drive motor, drive wheel, lever, slot, driven wheel, drive shaft, movable base, spline groove, and spline shaft, the spline shaft is driven to slide on the drive shaft. Since the end of the spline shaft is provided with a groove that is rotatably connected to the L-shaped block, the spline shaft is prevented from driving the sliding sleeve to rotate. Since the grooves contact the two sides of the L-shaped block respectively, the generated component force drives the sliding sleeve to slide on the drive shaft, ensuring that the fixed plate moves smoothly outward until it contacts the annular workpiece, thereby fixing the annular workpiece and improving the stability of fixing the annular workpiece. In addition, after each rotation of the driven wheel, it slides back into the limiting groove through the limiting block. The resistance generated when the limiting block contacts the limiting groove restricts the rotation of the drive shaft on the movable base, preventing external forces from unintentionally causing the drive shaft to rotate and affecting the clamping effect of fixing the ring-shaped workpiece. This further improves the stability of fixing the ring-shaped workpiece and increases the efficiency of producing ring-shaped workpieces. Attached Figure Description

[0014] Appendix Figure 1 This is a structural schematic diagram of the fixing plate of this utility model.

[0015] Appendix Figure 2 This is a schematic diagram of the structure of the sliding sleeve of this utility model.

[0016] Appendix Figure 3 This is a schematic diagram of the drive wheel of this utility model.

[0017] Appendix Figure 4 This is a schematic diagram of the friction part of this utility model.

[0018] The labels shown in the attached diagram: 1. Movable base; 2. Ring-shaped workpiece; 3. Fixing plate; 4. Fixing shaft; 5. Sliding sleeve; 6. First support rod; 7. Second support rod; 8. Drive shaft; 9. Splined shaft; 10. Spline groove; 11. Sliding groove; 12. L-shaped block; 13. Groove; 14. Driven wheel; 15. Dial slot; 16. Limiting groove; 17. Drive motor; 18. Drive wheel; 19. Dial lever; 20. Limiting block; 21. Bearing; 22. Protrusion; 23. Mounting base; 24. Friction part. Detailed Implementation

[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0020] This utility model provides a fixture for quenching ring-shaped workpieces after forging, such as... Figure 1 and Figure 2As shown, the system includes a movable base 1 and several fixing plates 3 for fixing annular workpieces 2. Specifically, the movable base 1 is connected to a three-axis moving platform, enabling the movable base 1 to move along the XYZ directions. The fixing plates 3, in conjunction with the movable base 1, fix the annular workpiece 2, moving the fixed annular workpiece 2 from the previous process to the quenching tank, achieving surface quenching of the annular workpiece 2 to obtain a surface with high hardness and high wear resistance. The movable base 1 is equipped with a fixed shaft 4, on which a sliding sleeve 5 is slidably connected. It also includes several first support rods 6 and second support rods 7. The two ends of the first support rods 6 are rotatably connected to one end of a fixing plate 3 and the end of a fixing shaft 4, respectively. The two ends of the second support rods 7 are rotatably connected to the fixed plates 3 and the fixed shaft 4, respectively. The other end of plate 3 is rotatably connected to sliding sleeve 5. A drive shaft 8 is rotatably connected to the movable base to drive sliding sleeve 5 to slide on fixed shaft 4. The drive shaft 8 drives sliding sleeve 5 to slide on fixed shaft 4. Since the two ends of the second connecting rod are rotatably connected to the other end of fixed plate 3 and sliding sleeve 5 respectively, the resulting component force acts on fixed plate 3, causing fixed plate 3 to move outward. At the same time, since the two ends of the first support rod 6 are rotatably connected to one end of fixed plate 3 and the end of fixed shaft 4 respectively, it guides the sliding of fixed plate 3, so that fixed plate 3 moves outward in parallel, ensuring that the side of fixed plate 3 is in contact with annular workpiece 2 at the same time, increasing the contact area between fixed plate 3 and annular workpiece 2, and improving the fixing effect of tooling fixture.

[0021] Preferred, such as Figure 1 and Figure 2 As shown, a splined shaft 9 is provided on one side of the sliding sleeve 5, and a splined groove 10 is provided at the end of the drive shaft 8 to slide in contact with the splined shaft 9. The splined shaft 9 is threadedly connected to the fixed shaft 4. When the drive shaft 8 is rotated on the movable base 1, the splined groove 10 at the end of the drive shaft 8 slides in contact with the splined shaft 9, and the resulting force causes the splined shaft 9 to rotate with the drive shaft 8. At the same time, since the splined shaft 9 is threadedly connected to the fixed shaft 4, the sliding sleeve 5 slides on the drive shaft 8, so that several fixing plates 3 simultaneously contact the annular workpiece 2, thereby fixing the annular workpiece 2 without the need for bolts, simplifying the operation steps of fixing the annular workpiece 2, and thus improving the efficiency of fixing the annular workpiece 2. At the same time, it can adapt to annular workpieces 2 with different inner diameters, eliminating the need to manufacture tooling fixtures of different specifications and reducing the cost required for tooling fixture replacement.

[0022] Preferred, such as Figure 3 As shown, the fixed shaft 4 is provided with a sliding groove 11 that is slidably connected to the sliding sleeve 5. The end of the sliding sleeve 5 is provided with an L-shaped block 12. The end of the spline shaft 9 is provided with a groove 13 that is rotatably connected to the L-shaped block 12. The two sides of the L-shaped block 12 are in contact with the groove 13 respectively.

[0023] Preferred, such as Figure 3As shown, the drive shaft 8 is provided with a driven wheel 14, and the driven wheel 14 is provided with a plurality of radial grooves 15. A limiting groove 16 is provided between two adjacent grooves 15. The movable base 1 is provided with a drive motor 17, and the movable end of the drive motor 17 is provided with a drive wheel 18. The two sides of the drive wheel 18 are respectively provided with a lever 19 and a limiting block 20. The lever 19 contacts the groove 15 and drives the drive shaft 8 to rotate on the movable base 1, providing power for the rotation of the drive shaft 8 and fixing the annular workpiece 2. The limiting block 20 contacts the limiting groove 16 and restricts the rotation of the drive shaft 8 on the movable base 1. The resistance generated after the limiting block 20 contacts the limiting groove 16 restricts the rotation of the drive shaft 8 on the movable base 1, avoiding unintentional rotation of the drive shaft 8 by external force, which would affect the effect of clamping the fixture in fixing the annular workpiece 2, further improving the stability of fixing the annular workpiece 2 and improving the efficiency of producing the annular workpiece 2.

[0024] Preferred, such as Figure 2 As shown, a bearing 21 is provided between the drive shaft 8 and the movable base 1 to reduce the friction between the drive shaft 8 and the movable base 1, ensure the smooth rotation of the drive shaft 8, improve the stability of the overall structure, and thus improve the effect of fixing the ring-shaped workpiece 2.

[0025] Preferred, such as Figure 2 As shown, the drive shaft 8 is provided with a protrusion 22 that contacts the bearing 21, and the movable base 1 is provided with a mounting seat 23 that contacts the bearing 21. Specifically, the mounting seat 23 and the movable base 1 are detachably connected by bolts to fix the drive shaft 8, and at the same time facilitate the subsequent installation and disassembly of the drive shaft 8, thereby improving the efficiency of maintenance tooling fixtures.

[0026] Preferred, such as Figure 4 As shown, the fixing plate 3 is arc-shaped and has several friction parts 24 that contact the annular workpiece 2. Specifically, the outer diameter of the arc-shaped fixing plate 3 is smaller than the inner diameter of the annular workpiece 2, thereby ensuring that the side of the fixing plate 3 can contact the annular workpiece 2 with different inner diameters. It can adapt to annular workpieces 2 with different inner diameters without the need to manufacture tooling fixtures of different specifications, reducing the cost required for tooling fixture replacement. At the same time, the friction parts 24 further increase the friction between the fixing plate 3 and the annular workpiece 2, improving the stability of fixing annular workpieces 2 with different inner diameters.

[0027] Preferred, such as Figure 4As shown, the friction part 24 is made of silicon nitride ceramic. Since silicon nitride ceramic can withstand high temperatures of 1300–1500℃, it ensures that the friction part 24 does not deform during the quenching process, thus ensuring the stability of the fixed ring workpiece 2. At the same time, silicon nitride ceramic has the advantages of strong thermal shock resistance, no cracking under rapid cooling and heating, low and stable coefficient of friction, no adhesion to quenched steel, aluminum alloy and other workpieces, and long wear life, which further ensures the stability of the friction part 24 during the quenching process, improves the effect of fixing the ring workpiece 2, and further improves the stability of the fixed ring workpiece 2.

[0028] Example 1 This utility model provides a fixture for quenching ring-shaped workpieces after forging, such as... Figure 1 and Figure 2 As shown, when it is necessary to fix the annular workpiece 2, the sliding sleeve 5 is driven to slide on the fixed shaft 4 by the drive shaft 8. Since the two ends of the second connecting rod are rotatably connected to the other end of the fixed plate 3 and the sliding sleeve 5 respectively, the resulting component force acts on the fixed plate 3, causing the fixed plate 3 to move outward. At the same time, since the two ends of the first support rod 6 are rotatably connected to one end of the fixed plate 3 and the end of the fixed shaft 4 respectively, it guides the sliding of the fixed plate 3, making the fixed plate 3 move outward in parallel, ensuring that the side of the fixed plate 3 is in contact with the annular workpiece 2 at the same time, increasing the contact area between the fixed plate 3 and the annular workpiece 2, and improving the fixing effect of the tooling fixture. When several fixed plates 3 are in contact with the annular workpiece 2 at the same time, the friction generated by the contact between the fixed plate 3 and the annular workpiece 2 will restrict the movement of the annular workpiece 2 relative to the fixed plate 3, thereby achieving the fixing of the annular workpiece 2 without the need for bolts, simplifying the operation steps of fixing the annular workpiece 2, thereby improving the efficiency of fixing the annular workpiece 2. At the same time, it can adapt to annular workpieces 2 with different inner diameters, eliminating the need to manufacture tooling fixtures of different specifications, and reducing the cost required for tooling fixture replacement.

[0029] Example 2 Based on Example 1, such as 2 and Figure 3As shown, the drive motor 17 drives the drive wheel 18 to rotate on the movable base 1, causing the limiting block 20 on one side of the drive wheel 18 to slide out of the limiting groove 16, releasing the restriction on the rotation of the drive shaft 8 on the movable base 1. Then, the lever 19 on the other side of the drive wheel 18 contacts the lever groove 15, and the resulting force is transmitted to the driven wheel 14, causing the drive shaft 8 to rotate on the movable base 1. Since the spline groove 10 at the end of the drive shaft 8 slides in contact with the spline shaft 9, the resulting force causes the spline shaft 9 to rotate with the drive shaft 8. At the same time, since the spline shaft 9 is threadedly connected to the fixed shaft 4, the spline shaft 9 slides on the drive shaft 8. The end of the spline shaft 9 is provided with a groove 13 that is rotatably connected to the L-shaped block 12, so as to prevent the spline shaft 9 from driving the sliding sleeve 5 to rotate. Since the groove 13 is in contact with both sides of the L-shaped block 12, the generated component force drives the sliding sleeve 5 to slide on the drive shaft 8, ensuring that the fixing plate 3 moves smoothly outward until it contacts the annular workpiece 2, thereby fixing the annular workpiece 2 and improving the stability of fixing the annular workpiece 2. In addition, there is no need to use bolts for fixing, which simplifies the operation steps of fixing the annular workpiece 2 and improves the efficiency of fixing the annular workpiece 2. At the same time, it can adapt to annular workpieces 2 with different inner diameters, eliminating the need to manufacture tooling fixtures of different specifications and reducing the cost required for tooling fixture replacement. In addition, after each rotation of the driven wheel 14, it slides back into the limiting groove 16 through the limiting block 20. The resistance generated by the contact between the limiting block 20 and the limiting groove 16 restricts the rotation of the drive shaft 8 on the movable base 1, preventing external forces from unintentionally causing the drive shaft 8 to rotate and affecting the effect of clamping the fixture to fix the ring workpiece 2. This further improves the stability of fixing the ring workpiece 2 and increases the efficiency of producing the ring workpiece 2.

Claims

1. A fixture for quenching annular workpieces after forging, comprising a movable base (1) and a plurality of fixing plates (3) for fixing the annular workpieces (2), characterized in that: The movable base (1) is provided with a fixed shaft (4), and a sliding sleeve (5) is slidably connected on the fixed shaft (4). It also includes several first support rods (6) and second support rods (7). The two ends of the first support rod (6) are rotatably connected to one end of the fixed plate (3) and the end of the fixed shaft (4), respectively. The two ends of the second support rod (7) are rotatably connected to the other end of the fixed plate (3) and the sliding sleeve (5), respectively. The movable base (1) is rotatably connected with a drive shaft (8) that drives the sliding sleeve (5) to slide on the fixed shaft (4).

2. The jig for quenching annular workpieces after forging according to claim 1, characterized in that: The sliding sleeve (5) has a spline shaft (9) on one side, and the end of the drive shaft (8) has a spline groove (10) that slides in contact with the spline shaft (9). The spline shaft (9) is threadedly connected to the fixed shaft (4).

3. The jig for quenching annular workpieces after forging according to claim 2, characterized in that: The fixed shaft (4) is provided with a sliding groove (11) that is slidably connected to the sliding sleeve (5). The end of the sliding sleeve (5) is provided with an L-shaped block (12). The end of the spline shaft (9) is provided with a groove (13) that is rotatably connected to the L-shaped block (12). The two sides of the L-shaped block (12) are in contact with the groove (13) respectively.

4. The jig for quenching annular workpieces after forging according to claim 1, characterized in that: The drive shaft (8) is provided with a driven wheel (14), and the driven wheel (14) is provided with a plurality of radial grooves (15). A limiting groove (16) is provided between two adjacent grooves (15). The movable base (1) is provided with a drive motor (17), and the movable end of the drive motor (17) is provided with a drive wheel (18). The two sides of the drive wheel (18) are respectively provided with a lever (19) and a limiting block (20). The lever (19) contacts the groove (15) and drives the drive shaft (8) to rotate on the movable base (1). The limiting block (20) contacts the limiting groove (16) and restricts the drive shaft (8) from rotating on the movable base (1).

5. A fixture for quenching annular workpieces after forging, as described in claim 1, characterized in that: A bearing (21) is provided between the drive shaft (8) and the movable base (1).

6. A jig for quenching annular workpieces after forging, as described in claim 5, characterized in that: The drive shaft (8) is provided with a protrusion (22) that contacts the bearing (21), and the movable base (1) is provided with a mounting seat (23) that contacts the bearing (21).

7. A fixture for quenching annular workpieces after forging, as described in claim 1, characterized in that: The fixing plate (3) is arc-shaped and has several friction parts (24) that come into contact with the annular workpiece (2).

8. A jig for quenching annular workpieces after forging, as described in claim 7, characterized in that: The friction part (24) is made of silicon nitride ceramic material.

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