Clamping device for salt bath quenching of cylindrical part
By designing a clamping device that uses card claws and head -to -head to lock the cylindrical parts, it solves the problem of high cost of holding the cost of the robotic hand clamping and the time and labor of the iron wire binding.
Patent Information
- Application Number
- CN202420995188.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-09
AI Technical Summary
In the existing cylindrical salt bath heating and quenching process, the manipulator clamping cost is high, and the wire bundling is time-consuming and labor-intensive, which reduces the quenching production efficiency and causes waste of wire.
The holding device of the tube -shaped part of the salt bath is used to quench the grip, and uses the workpiece self -weight to match the bottom stuck claw and the top of the top of the device. Mechanical structure realizes fast -loading cards and repetitive use.
The production efficiency of the tube -shaped salt bath has reduced the labor intensity of workers, reduced the waste of iron wire, and ensured the uniformity of quenching.
Smart Images
Figure CN222411707U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of salt bath quenching clamping tooling, in particular to a clamping device for salt bath quenching of a cylindrical piece. Background Art
[0002] Salt bath heating and quenching is the use of molten salt to heat and quench the workpiece. Salt bath heating and quenching has the advantages of fast heating speed, good heating temperature consistency, and less oxidation loss. It is suitable for heating and quenching parts with complex shapes and uneven wall thickness.
[0003] Existing cylindrical parts must be processed using a salt bath heating and quenching process. The first processing method is to use a manipulator to clamp the cylindrical parts for salt bath heating, followed by rapid cooling and quenching, but this method requires the purchase of an automated production line, which is costly. The second processing method is to use wire to bundle the cylindrical parts, and then manually use a hook to place the cylindrical parts in a salt bath furnace for heating. After heating, use a hook to throw them into the water for quenching. Although this method is less expensive, it takes a lot of time to bundle the cylindrical parts each time, and the wire used for bundling cannot be reused, resulting in waste. Summary of the invention
[0004] In order to solve the technical problems that the cost of clamping cylindrical parts for salt bath heating by manipulators is too high, and the existing salt bath heating quenching uses iron wire to bind cylindrical parts, which is time-consuming and labor-intensive, reduces the quenching production efficiency of cylindrical parts and wastes iron wire, the utility model proposes a clamping device for salt bath quenching of cylindrical parts. The cylindrical parts are locked from the upper and lower positions of the cylindrical parts by using the workpiece deadweight to cooperate with the bottom clamping claws and the top pressure head of the device, so as to ensure the uniformity of the quenching of the cylindrical parts with as little contact surface as possible. The structure is simple, easy to manufacture, low cost, and the device can realize fast clamping, thereby improving the heating and quenching efficiency of the cylindrical parts.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a clamping device for salt bath quenching of cylindrical parts, including a hanger, a placement seat for placing the cylindrical parts is provided at the lower end of the hanger, and relative claws are provided on both sides of the placement seat. The hanger is provided with an arc-shaped pressure head, and the lower part of the pressure head enters the cylindrical part and presses against the cylindrical part. The two ends of the pressure head are fixed with sleeves, and the sleeve is slidably connected with the hanger. The hanger is provided with a socket, and a pin is inserted in the socket for limiting the sleeve. When the cylindrical part is placed in the placement seat, the claws on both sides of the placement seat, the hanger and the placement seat cooperate to achieve the stability of the lower side of the cylindrical part, and then the sleeve drives the arc-shaped pressure head to move on the hanger. When the pressure head enters the cylindrical part and presses against the cylindrical part, the upper part of the cylindrical part is locked by inserting the pin in the socket.
[0006] Furthermore, the upper part of the rack is in an inverted "V" shape, and the lower part is in two oppositely arranged "L" shapes, a gap is arranged between the two "L"-shaped transverse parts of the lower part of the rack, and the placement seat is fixed between the two transverse parts. The upper part of the inverted "V"-shaped rack is convenient for manual use of material hooks to move the cylindrical part to the salt bath quenching position.
[0007] Furthermore, the cross section of the clamping claw is in an "L" shape, which is convenient for limiting the outer wall of the cylindrical member.
[0008] Furthermore, the placement seat is in a circular ring or square shape. The square placement seat is hollow inside, which can minimize contact with the cylindrical part and ensure uniformity of salt bath quenching of the cylindrical part.
[0009] Furthermore, the placement seat is in the shape of a circular ring, and the two clamping claws are relatively fixed on the circular ring-shaped placement seat and are arranged along the radial direction of the placement seat.
[0010] Furthermore, the two claws arranged radially along the placement seat are perpendicular to the two "L"-shaped transverse parts of the lower part of the hanger. The connection part between the lower part of the hanger and the placement seat and the connection part between the claws and the placement seat are perpendicular to ensure the locking effect of the cylindrical part.
[0011] Furthermore, the latch is in a semicircular shape.
[0012] Through the above technical solution, the beneficial effects of the utility model are:
[0013] 1. The utility model is that when the cylindrical part is placed in the placement seat, the claws on both sides of the placement seat, the hanger and the placement seat cooperate to achieve locking of the lower part of the cylindrical part, and then the sleeve drives the arc pressure head to move on the hanger. When the pressure head enters the cylindrical part and presses the cylindrical part tightly, the locking of the upper part of the cylindrical part is achieved by inserting a pin into the socket. The locking of the cylindrical part is achieved by utilizing the dead weight of the workpiece in conjunction with the bottom claws and the upper pressure head. Compared with the traditional wire binding method, the production efficiency of salt bath quenching of cylindrical parts is improved while reducing the labor intensity of workers.
[0014] 2. The lower part of the utility model hanger is in the form of two relatively arranged "L" shapes, the placement seat is in the form of a circular ring, and the upper part is an arc-shaped pressure head that enters the cylindrical part. The lower end of the cylindrical part has an increased exposure area due to the placement seat in the form of a circular ring, and the outer wall of the cylindrical part only contacts the vertical rod at the lower part of the hanger, and the upper end of the cylindrical part only contacts the pressure head, which satisfies the requirement that the quenching tooling and the cylindrical part maintain a smaller contact surface during the salt bath quenching of the cylindrical part to ensure the uniformity of the quenching of the cylindrical part, and the unique design can reduce the additional furnace temperature loss caused by the device entering the salt bath furnace.
[0015] 3. The placement seat in the utility model is in the shape of a circular ring or a hollow square, which is conducive to the molten salt flowing into the bottom hole of the cylindrical member when the cylindrical member falls during the salt bath heating process and the molten salt flowing out of the bottom hole of the cylindrical member when the cylindrical member is taken out after heating.
[0016] 4. The utility model is a purely mechanical structure with a simple structure, easy to manufacture, can quickly clamp the cylindrical parts, and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of a clamping device for salt bath quenching of a cylindrical part according to the utility model;
[0018] Figure 2 This is a front view of a clamping device for salt bath quenching of a cylindrical part according to the utility model;
[0019] Figure 3 This is a cross-sectional view of the AA portion of a clamping device for salt bath quenching of a cylindrical part according to the utility model;
[0020] Figure 4 The utility model is a front view of a cylindrical part of a clamping device for salt bath quenching of a cylindrical part, in which the cylindrical part is stably clamped.
[0021] The numbers in the accompanying drawings are: 1 is a hanger, 2 is a cylindrical member, 3 is a placement seat, 4 is a claw, 5 is a pressure head, 6 is a sleeve, 7 is a socket, and 8 is a pin. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:
[0023] like Figure 1 to Figure 4 As shown, this embodiment provides a clamping device for salt bath quenching of cylindrical parts, including a hanger 1, a placement seat 3 for placing the cylindrical part 2 is provided at the lower end of the hanger 1, and opposite claws 4 are provided on both sides of the placement seat 3. The hanger 1 is provided with an arc-shaped pressure head 5, and the lower part of the pressure head 5 enters into the cylindrical part 2 and presses the cylindrical part 2 tightly. Sleeves 6 are fixed at both ends of the pressure head 5, and the sleeve 6 is slidably connected to the hanger 1. The hanger 1 is provided with a socket 7, and a pin 8 is inserted in the socket 7 for limiting the sleeve 6.
[0024] In this embodiment, two sockets 7 are provided on the hanger 1. Since the specifications of the cylindrical member 2 determine the position of the sleeve 6 on the hanger 1, the two sockets 7 with determined positions on the hanger 1 can be inserted with two semicircular ring-shaped pins 8 to fix the sleeve 6. In another embodiment, the sleeve 6 is provided with a socket that cooperates with the socket 7 on the hanger 1, and the pins 8 are inserted into the two mutually cooperating sockets to fix the sleeve 6. In this embodiment, the socket 7 on the hanger 1 will be lower than the position of the socket 7 in the original embodiment.
[0025] Specifically, the upper portion of the rack 1 is in an inverted "V" shape, and the lower portion is in two oppositely arranged "L" shapes, a gap is provided between the two "L"-shaped horizontal portions of the lower portion of the rack 1, and the placement seat 3 is fixed between the two horizontal portions. Figure 3 As shown, the connection part between the lower part of the hanger 1 and the placement seat 3 and the connection part between the claw 4 and the placement seat 3 are perpendicular, and the four connection parts of the upper, lower, left and right parts and the placement seat 3 are all on the same plane.
[0026] like Figure 1 to Figure 3 As shown, in the present embodiment, the cross-section of the clamping claw 4 is in an "L" shape, the placement seat 3 is in an annular shape, the two clamping claws 4 are relatively fixed on the annular placement seat 3 and are arranged along the radial direction of the placement seat 3. Specifically, the two clamping claws 4 arranged along the radial direction of the placement seat 3 are perpendicular to the two "L"-shaped transverse parts at the lower part of the bracket 1, and the two relatively arranged "L"-shaped lower parts on the bracket 1 and the connection part with the placement seat 3 and the connection part between the clamping claw 4 and the placement seat 3 are perpendicular, thereby ensuring the locking effect of the cylindrical member 2.
[0027] As an implementable embodiment, the placement seat 3 is square (not shown in the figure) and is hollow inside.
[0028] The process of using the device to clamp the cylindrical member 2 is as follows: first, the pin 8 is taken out of the socket 7. At this time, the sleeve 6 is in a free sliding state on the hanger 1. The sleeve 6 is moved upward to drive the pressure head 5 to move upward, and then the cylindrical member 2 is placed vertically on the placement seat 3. At this time, the lower part of the hanger 1 and the claw 4 fix the outer wall of the cylindrical member 2, and then the sleeve 6 is moved downward. The lower end of the pressure head 5 gradually enters the inside of the cylindrical member 2 and finally presses against the cylindrical member 2, and then the two pins 8 are inserted into the two sockets on the hanger 1. 7, the cylindrical member 2 is clamped, and then the clamping device holding the cylindrical member 2 is manually picked up by a material hook to be heated in a salt bath furnace. After the heating is completed, the material hook is manually used to pick it out. After the molten salt in the cylindrical member 2 is completely leaked from the hole at the bottom of the cylindrical member 2, the clamping device holding the cylindrical member 2 is thrown into the water as a whole to complete quenching. After quenching, the pin 8 in the socket 7 is pulled out, and the pressure head 5 is moved upward to remove the cylindrical member 2 from the clamping device, thereby realizing the reuse of the clamping device.
[0029] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.
Claims
1. A clamping device for salt bath quenching of cylindrical parts, characterized in that: The invention comprises a hanging bracket (1), wherein a placement seat (3) for placing a cylindrical member (2) is provided at the lower end of the hanging bracket (1), and claws (4) are provided on both sides of the placement seat (3) to face each other. The hanging bracket (1) is provided with an arc-shaped pressing head (5), and the lower part of the pressing head (5) enters into the cylindrical member (2) and presses against the cylindrical member (2). Sleeves (6) are fixed at both ends of the pressing head (5), and the sleeves (6) are slidably connected to the hanging bracket (1). The hanging bracket (1) is provided with a plug hole (7), and a pin (8) is inserted into the plug hole (7) to limit the position of the sleeve (6).
2. A clamping device for salt bath quenching of cylindrical parts according to claim 1, characterized in that: The upper portion of the hanger (1) is in an inverted "V" shape, and the lower portion is in two oppositely arranged "L" shapes. A gap is provided between the two "L"-shaped transverse portions of the lower portion of the hanger (1), and the placement seat (3) is fixed between the two transverse portions.
3. A clamping device for salt bath quenching of cylindrical parts according to claim 1, characterized in that: The cross section of the claw (4) is L-shaped.
4. A clamping device for salt bath quenching of cylindrical parts according to claim 1, characterized in that: The placement seat (3) is in the shape of a circular ring or a square.
5. The clamping device for salt bath quenching of cylindrical parts according to claim 1, characterized in that: The placement seat (3) is in the shape of a circular ring, and the two clamping claws (4) are relatively fixed on the circular ring-shaped placement seat (3) and are arranged along the radial direction of the placement seat (3).
6. A clamping device for salt bath quenching of cylindrical parts according to claim 2 or 5, characterized in that: The two clamping claws (4) arranged radially along the placement seat (3) are perpendicular to the two "L"-shaped horizontal parts at the bottom of the hanger (1).
7. A clamping device for salt bath quenching of cylindrical parts according to claim 1, characterized in that: The latch (8) is in the shape of a semicircle.