Salt bath heating quenching clamping tool for cylindrical part
By designing a salt bath heated quenching clamping tool for cylindrical parts, the locking mechanism of workpiece self-weight and flip hooks is used to solve the problem of dropping the salt bath furnace temperature caused by the complex structure of the existing tooling, and the quenching production efficiency is improved and uniformity, reducing costs.
Patent Information
- Application Number
- CN202323336029.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-07
AI Technical Summary
The existing salt bath heating and quenching tooling has a complex structure, which leads to a drop in the furnace temperature of the salt bath furnace, extends the heating time of the cylindrical parts, increases production costs and reduces production efficiency.
A salt bath heated and quenched clamping tooling including columns, support hooks, semicircular pins, gear levers, lifting rings and flip hooks is designed. Three upper, middle and lower parts of the cylindrical member are matched with the flip hooks by the workpiece. Lock the position to reduce the contact surface, avoid the drop in the salt bath furnace temperature, and improve the quenching production efficiency.
The uniformity and production efficiency of the cylindrical parts during the salt bath heating and quenching process are achieved, the contact surface of the workpiece is reduced, the sharp drop in the salt bath furnace temperature is avoided, the tooling structure is simplified, and the manufacturing cost is reduced.
Smart Images
Figure CN222205336U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of salt bath heating and quenching clamping tooling, in particular to a salt bath heating and quenching clamping tooling for cylindrical parts. Background Art
[0002] Salt bath heating quenching is the use of molten salt to heat and quench the workpiece. Salt bath heating quenching has the advantages of fast heating speed, good heating temperature consistency, and less oxidation loss. It is suitable for quenching parts with complex shapes and uneven wall thickness.
[0003] Existing cylindrical parts are processed by salt bath heating and quenching process. The first method is to use a manipulator to clamp the cylindrical parts for salt bath heating, and then quickly cool and quench. However, this method requires the purchase of an automated production line, which is too expensive. The second method is to use a manually controlled salt bath heating and quenching clamping tooling to perform salt bath heating and quenching on the cylindrical parts, but the structure of the existing salt bath heating and quenching clamping tooling is complex. When heating in the salt bath, it will cause the temperature of the salt bath furnace to drop significantly, thereby greatly extending the heating time of the cylindrical parts, consuming excess electricity, and reducing the production efficiency of the cylindrical parts. In view of this, it is necessary to develop a salt bath heating and quenching clamping tooling for cylindrical parts to solve the above problems. Utility Model Content
[0004] In order to solve the technical problems that the cost of clamping a cylindrical part for salt bath heating by a manipulator is too high, and the structure of the existing salt bath heating and quenching clamping tool is complicated, which reduces the production efficiency of the cylindrical part during salt bath heating, the utility model provides a salt bath heating and quenching clamping tool for the cylindrical part, which has a simple structure, is easy to manufacture, and has a low cost. The cylindrical part is locked from the upper, middle, and lower positions of the cylindrical part by using the dead weight of the workpiece in conjunction with a flip hook, so as to ensure the uniformity of the quenching of the cylindrical part with as little contact surface as possible with the cylindrical part, and effectively avoids a sharp drop in the temperature of the salt bath furnace when the workpiece enters the furnace with a simple structure and less materials, thereby realizing the improvement of the quenching production efficiency of the cylindrical part.
[0005] The utility model adopts the following technical solutions:
[0006] A salt bath heating quenching clamping tool for cylindrical parts, comprising a column, a support hook, a semicircular pin, a gear rod, a lifting ring and a flip hook, the column comprising an integrally formed bottom, middle and top parts, the support hook being arranged at the bottom and the length of the support hook being greater than the radius of the cylindrical part, a socket being arranged at the middle part and the semicircular pin matching the socket, the gear rod being arranged at the middle part and being located below the socket, a gap being reserved between the gear rod and the socket for fixing the lifting ring, the lifting ring being slidably arranged on the middle part and being located above the gear rod, the inner diameter of the lifting ring being greater than the outer diameter of the cylindrical part, the flip hook being rotatably arranged at the top part and having a flip ring on the flip hook, the outer diameter of the flip ring being greater than the inner diameter of the cylindrical part. The bottom of the cylindrical member is stuck on the supporting hook, and then the lifting ring slides to the gap, and the semicircular pin is stuck in the socket, so that the lifting ring is fixed between the gear rod and the socket, and the lifting ring is fixed and cannot slide up and down. At this time, the body of the cylindrical member is stuck on the lifting ring; the flip hook is rotated to press the flip ring on the top of the cylindrical member, that is, the flip ring is pressed on the mouth of the cylindrical member.
[0007] Furthermore, the flip hook includes a flip arc rod and a flip ring and a flip hook body arranged at both ends of the flip arc rod, and the flip arc rod is rotatably arranged at the top. The flip hook body is arranged to facilitate the use of a crane hook or a manual hook to slowly hang the salt bath heating quenching clamping tooling and the cylindrical part in the salt bath furnace for heating.
[0008] Furthermore, the top is provided with a slot and two through holes connected to the slot, the two through holes are symmetrically arranged, and fixed shafts are arranged on both sides of the flip arc rod, and each fixed shaft passes through the through hole and is rotatably connected to the through hole. The flip arc rod can rotate a certain angle with the fixed shaft as the rotation center. The slot gives way to the flip hook, which is beneficial to the rotation of the flip hook and makes the salt bath heating quenching clamping tooling structure more streamlined.
[0009] Furthermore, the weight of the flip hook is greater than the weight of the flip ring, and the flip hook can abut against the middle part. Since the weight of the flip hook is greater than the weight of the flip hook, the flip hook can abut against the middle part of the column under the action of its own gravity, and the lifting ring is fixed above the flip hook and cannot slide downward.
[0010] Furthermore, the flip hook body is a semicircular structure.
[0011] Furthermore, the salt bath heating quenching fixture further includes a guide ring, which is arranged on one side of the lifting ring and has an inner diameter greater than an outer diameter of the column, and is sleeved on the middle portion and can slide along the axial direction of the column, and is located above the lever. The guide ring slides on the column, thereby driving the lifting ring to slide in the axial direction of the column.
[0012] Furthermore, the support hook includes a support column and a fixed protrusion arranged at one end of the support column, the end of the support column away from the fixed protrusion is arranged on the bottom, and the length of the support column is greater than the radius of the cylindrical member. The fixed protrusion can be inserted into the bottom hole at the bottom of the cylindrical member, so that the bottom of the cylindrical member remains stable under the action of the salt bath heating quenching clamping tooling.
[0013] Compared with the prior art, the utility model has the following technical effects:
[0014] 1. The salt bath heating quenching fixture has a simple structure, which is conducive to the loading and removal of cylindrical parts. The cylindrical parts are locked from the upper, middle and lower positions of the cylindrical parts by using the dead weight of the workpiece in combination with the flip hook. This effectively solves the problem of the cylindrical parts falling off in the salt bath furnace when entering or taking out of the furnace or heating in the salt bath furnace, which forces the production to be stopped. This can effectively improve the quenching production efficiency of cylindrical parts.
[0015] 2. The salt bath heating quenching fixture has a simple structure, is easy to manufacture and has low cost. It can ensure that the quenching uniformity of the cylindrical parts is ensured by keeping a very small contact surface between the quenching fixture and the cylindrical parts during the salt bath heating process and the cooling quenching process. It can effectively avoid a sharp drop in the salt bath furnace temperature when the workpiece enters the furnace with its simple structure and less materials, thereby improving the quenching production efficiency of the cylindrical parts. It is easy to use and can be reused, which has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a salt bath heating and quenching clamping tool for cylindrical parts of the utility model. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the structure of the salt bath heating quenching clamping tool of the utility model when clamping a cylindrical part Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the side view of the slotted structure of the utility model. Figure 3 ;
[0019] The reference numerals in the accompanying drawings are:
[0020] 1. Column; 11. Bottom; 12. Middle; 13. Top; 131. Slot; 132. Through hole; 14. Jack;
[0021] 2. Support hook; 21. Support column; 22. Fixing protrusion;
[0022] 3. Lifting ring;
[0023] 4. Semicircular latch;
[0024] 5. Gear lever;
[0025] 6. Flip the hook; 61. Flip the arc rod; 611. Fix the shaft; 62. Flip the ring; 63. Flip the hook body;
[0026] 7. Guide ring; 8. Cylindrical part. DETAILED DESCRIPTION
[0027] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0028] like Figures 1 to 3 As shown, a salt bath heating quenching clamping tool for cylindrical parts includes a column 1, a support hook 2, a semicircular plug 4, a gear lever 5, a lifting ring 3 and a flip hook 6. The column 1 includes an integrally formed bottom 11, a middle part 12 and a top 13. The support hook 2 is arranged at the bottom 11 and the length of the support hook 2 is greater than the radius of the cylindrical part 8. The middle part 12 is provided with a socket 14 and the semicircular plug 4 matches the socket 14. The gear lever 5 is arranged at the middle part 12 and is located below the socket 14. The gear lever 5 is arranged at the middle part 12 and is located below the socket 14. The rod 5 is a downward limiter for the lifting ring 3, and the position of the socket 14 ensures that the lifting ring 3 can only slide down to the top of the gear rod 5. A gap is left between the gear rod 5 and the socket 14 for fixing the lifting ring 3. The lifting ring 3 is slidably arranged on the middle part 12 and is located above the gear rod 5. The inner diameter of the lifting ring 3 is larger than the outer diameter of the cylindrical member 8. The flip hook 6 is rotatably arranged on the top 13 and has a flip ring 62 on the flip hook 6. The outer diameter of the flip ring 62 is larger than the inner diameter of the cylindrical member 8. The bottom of the cylindrical member 8 is clamped on the support hook 2, and then the lifting ring 3 slides to the gap, and the semicircular pin 4 is clamped into the socket 14, so that the lifting ring 3 is fixed between the gear lever 5 and the socket 14, and the lifting ring 3 is fixed and cannot slide up and down. At this time, the body of the cylindrical member 8 is clamped on the lifting ring 3; the flip hook 6 is rotated to press the flip ring 62 on the top of the cylindrical member 8, that is, the flip ring 62 presses on the mouth of the cylindrical member 8. The salt bath heating and quenching clamping tool fixes and clamps the cylindrical member 8, and then the salt bath heating and quenching clamping tool clamps the cylindrical member 8 for salt bath heating and quenching.
[0029] The salt bath heating quenching fixture of this embodiment has a simple structure, which is convenient for loading and removing the cylindrical part 8. The cylindrical part 8 is locked from the upper, middle and lower positions of the cylindrical part 8 by using the dead weight of the workpiece in combination with the flip hook 6, which effectively solves the problem that the cylindrical part 8 falls off in the salt bath furnace when entering and exiting the furnace and heating in the salt bath furnace, causing the production to be forced to stop, and can effectively improve the quenching production efficiency of the cylindrical part 8. At the same time, the salt bath heating quenching fixture of this embodiment has a simple structure, is easy to manufacture, and has low cost. It meets the requirements of the quenching fixture and the cylindrical part 8 retaining a very small contact surface during the salt bath heating process and the cooling quenching process to ensure the uniformity of the workpiece quenching, and ensures the uniformity of the quenching of the cylindrical part with as little contact surface as possible with the cylindrical part. The simple structure and less materials effectively avoid a significant drop in the salt bath furnace temperature when the workpiece enters the furnace, thereby improving the quenching production efficiency of the cylindrical part 8; and it is easy to use and can be reused, which has promotion value.
[0030] As an implementation method, the flip hook 6 includes a flip arc rod 61 and a flip ring 62 and a flip hook body 63 arranged at both ends of the flip arc rod 61. The flip arc rod 61 is rotatably arranged on the top 13, wherein the flip hook body 63 is a semicircular structure. The flip arc rod 61, the flip ring 62 and the flip hook body 63 are integrally manufactured. Figure 1 The size of the flip ring 62 is larger than that of the flip hook body 63. The flip hook body 63 is provided to facilitate the use of a crane hook or a manual hook to slowly hang the salt bath heating quenching clamping tooling and the cylindrical part 8 in the salt bath furnace for heating.
[0031] As an implementation method, the top 13 is provided with a slot 131 and two through holes 132 connected to the slot 131, the two through holes 132 are symmetrically arranged, and the two sides of the flip arc rod 61 are provided with fixed shafts 611, and each of the fixed shafts 611 passes through the through hole 132 and is rotatably connected to the through hole 132. The flip arc rod 61 can rotate a certain angle with the fixed shaft 611 as the rotation center, and the flip hook 6 is then rotatably connected to the column 1 through the fixed shaft 611 and the through hole 132. The slot 131 makes way for the flip hook 6, which is beneficial to the rotation of the flip hook 6 and makes the salt bath heating quenching clamping tooling structure more streamlined.
[0032] As an implementable embodiment, the weight of the flip hook body 63 is greater than the weight of the flip ring 62, and the flip hook body 63 can abut against the middle part 12. Before the flip ring 62 is pressed on the top of the cylindrical member 8, that is, before the flip ring 62 is pressed on the mouth of the cylindrical member 8, the lifting ring 3 slides upward to the top 13 on the column 1. Since the weight of the flip hook body 63 is greater than the weight of the flip hook body 63, the flip hook body 63 can abut against the middle part 12 of the column 1 under the action of its own gravity. After that, the lifting ring 3 is fixed above the flip hook body 63 and cannot slide downward. After the cylindrical member 8 is fixed on the support hook 2, the flip ring 62 is rotated.
[0033] As an implementable embodiment, the salt bath heating quenching clamping fixture further includes a guide ring 7, the guide ring 7 is arranged on one side of the lifting ring 3 and the inner diameter of the guide ring 7 is larger than the outer diameter of the column 1, the guide ring 7 is sleeved on the middle part 12 and can slide along the axial direction of the column 1, and the guide ring 7 is located above the gear rod 5. The guide ring 7 and the lifting ring 3 of this embodiment are fixed together by welding. The gear rod 5 limits the sliding position of the guide ring 7, and the guide ring 7 slides on the column 1, thereby driving the lifting ring 3 to slide in the axial direction of the column 1.
[0034] As an implementation method, the support hook 2 includes a support column 21 and a fixed protrusion 22 arranged at one end of the support column 21, and one end of the support column 21 away from the fixed protrusion 22 is arranged on the bottom 11, and the length of the support column 21 is greater than the radius of the cylindrical member 8. The support column 21 and the fixed protrusion 22 are integrally manufactured. Specifically, the fixed protrusion 22 can be inserted into the bottom hole at the bottom of the cylindrical member 8, so that the bottom of the cylindrical member 8 remains stable under the action of the salt bath heating quenching clamping tooling.
[0035] The working process of this embodiment is as follows: the lifting ring 3 slides upward along the axial direction of the column 1 to the top 13 of the column 1, the flip hook body 63 of the flip hook 6 is located at the bottom, and the flip ring 62 is located at the top. The flip hook body 63 abuts against the middle part 12 of the column 1 under the action of gravity, and the lifting ring 3 is released. At this time, the lifting ring 3 is fixed above the flip hook body 63 and cannot slide downward. The lifting ring 3 is now located at the top 13 of the column 1.
[0036] After the bottom hole of the bottom of the cylindrical member 8 is sleeved on the fixed protrusion 22 of the support hook 2, the bottom of the cylindrical member 8 remains fixed on the support hook 2. The flip hook body 63 of the flip hook 6 is rotated clockwise, and the lifting ring 3 can slide downward at this time until the lifting ring 3 is sleeved on the outer surface of the cylindrical member 8 and the lifting ring 3 slides down onto the gear rod 5, and the lifting ring 3 stops sliding downward, and the semicircular plug 4 is inserted into the insertion hole 14 to lock the lifting ring 3 between it and the gear rod 5 (the two ends of the semicircular plug 4 droop naturally and should not fall off, and the side axis length of the semicircular plug 4 is greater than the length of the insertion hole 14 to ensure that the side axis of the semicircular plug 4 can pass through the insertion hole 14 and the semicircular plug 4 is fixed on the insertion hole 14), and the body of the cylindrical member 8 remains fixed in the lifting ring 3. Continue to rotate the flip hook 6 clockwise, the flip hook body 63 is located at the top, and the flip ring 62 is located at the bottom. One side of the flip ring 62 will tightly clamp the mouth of the cylindrical part 8 (the farthest distance from the center of the fixed shaft 611 to the flip ring 62 is less than the distance from the center of the fixed shaft 611 to the outside of the top of the cylindrical part 8 and greater than the distance from the center of the fixed shaft 611 to the inside of the top of the cylindrical part 8), that is, the flip ring 62 presses on the mouth of the cylindrical part 8, and the top of the cylindrical part 8 remains fixed. The salt bath heating quenching clamping tool uses the deadweight of the workpiece (cylindrical part) to cooperate with the flip hook 6 to lock the cylindrical part 8 from the upper, middle and lower positions of the cylindrical part 8, effectively solving the problem of the cylindrical part 8 falling off in the salt bath furnace when entering and exiting the furnace and heating in the salt bath furnace, resulting in forced suspension of production.
[0037] Then, according to the size and weight of the cylindrical part 8, the quenching clamping tool and the workpiece are slowly hung into the salt bath furnace for heating by means of a crane hook or a manual hook, and the flip hook body 63 of the flip hook 6 is hung on the hook above the salt bath furnace, and the workpiece is fully or partially immersed in the molten salt liquid. After the heating is completed, the salt bath heating quenching clamping tool and the workpiece are lifted out of the salt bath furnace, and the salt is quickly cooled and quenched after leaking. After quenching, the cylindrical part 8 can be removed from the quenching clamping tool.
[0038] The embodiments described above are only preferred embodiments of the present invention and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art, other implementation methods can certainly be easily made by replacement or modification based on the technical contents disclosed in this specification. Therefore, all changes and improvements made to the principles and process conditions of the present invention should be included in the scope of the patent application of the present invention.
Claims
1. A salt bath heating and quenching clamping tool for cylindrical parts, characterized in that: The utility model comprises a column (1), a support hook (2), a semicircular latch (4), a shift lever (5), a lifting ring (3) and a flip hook (6), wherein the column (1) comprises an integrally formed bottom portion (11), a middle portion (12) and a top portion (13), the support hook (2) is arranged at the bottom portion (11) and the length of the support hook (2) is greater than the radius of the cylindrical member (8), the middle portion (12) is provided with a socket (14) and the semicircular latch (4) matches the socket (14), the shift lever (5) is arranged at the middle portion (12) and the semicircular latch (4) matches the socket (14), and the shift lever (5) is arranged at the middle portion (12) and the semicircular latch (4) matches the socket (14). Located below the insertion hole (14), a gap is left between the shift rod (5) and the insertion hole (14) for fixing the lifting ring (3), the lifting ring (3) is slidably arranged on the middle part (12) and located above the shift rod (5), the inner diameter of the lifting ring (3) is larger than the outer diameter of the cylindrical member (8), the flip hook (6) is rotatably arranged on the top (13) and the flip hook (6) has a flip ring (62), and the outer diameter of the flip ring (62) is larger than the inner diameter of the cylindrical member (8).
2. The salt bath heating quenching fixture according to claim 1, characterized in that: The flip hook (6) comprises a flip arc rod (61), and flip rings (62) and a flip hook body (63) arranged at both ends of the flip arc rod (61). The flip arc rod (61) is rotatably arranged on the top (13).
3. The salt bath heating quenching fixture according to claim 2, characterized in that: The top portion (13) is provided with a slot (131) and two through holes (132) connected to the slot (131), the two through holes (132) are symmetrically arranged, and fixed shafts (611) are arranged on both sides of the flip arc rod (61), and each of the fixed shafts (611) passes through the through hole (132) and is rotatably connected to the through hole (132).
4. The salt bath heating quenching fixture according to claim 2, characterized in that: The weight of the flip hook body (63) is greater than the weight of the flip ring (62), and the flip hook body (63) can abut against the middle part (12).
5. The salt bath heating quenching fixture according to claim 2, characterized in that: The flip hook body (63) is a semicircular structure.
6. The salt bath heating quenching fixture according to claim 1, characterized in that: The salt bath heating quenching clamping fixture further comprises a guide ring (7), wherein the guide ring (7) is arranged on one side of the lifting ring (3) and the inner diameter of the guide ring (7) is larger than the outer diameter of the column (1), the guide ring (7) is sleeved on the middle part (12) and can slide along the axial direction of the column (1), and the guide ring (7) is located above the gear rod (5).
7. The salt bath heating quenching fixture according to claim 1, characterized in that: The support hook (2) comprises a support column (21) and a fixing protrusion (22) arranged at one end of the support column (21); an end of the support column (21) away from the fixing protrusion (22) is arranged on the bottom (11); and the length of the support column (21) is greater than the radius of the cylindrical member (8).