Automatic platinum wire inserting structure for wax piece
By using a combination of a moving mechanism, a vacuum mechanism and a suction mechanism in the waxed automatic insertion platinum wire structure, the problem of difficulty in inserting platinum wire and difficulty in ensuring quality is solved, and high-precision and high-quality platinum wire insertion is achieved, reducing the difficulty of operation.
Patent Information
- Application Number
- CN202421970809.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-14
AI Technical Summary
In the prior art, the operation of platinum wire inserting wax pieces is difficult, and the insertion quality is not easy to ensure, which causes problems such as inadequate insertion and damage to the surface roughness of the wax pieces.
The wax piece automatically inserts the platinum wire structure, including a moving mechanism, a vacuum evacuation mechanism and a suction and holding mechanism, is automatically inserted into the platinum wire through the mechanical structure, and the vacuum evacuation action and the cooperation of the top holder are used to achieve accurate positioning and stable insertion of the platinum wire.
It reduces the operation difficulty of the operator, improves the quality and accuracy of platinum wire insertion, reduces the abnormality rate, and realizes the relative fixation of the mold and ceramic core of the outer periphery of the wax piece.
Smart Images
Figure CN223028387U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of investment casting, and particularly relates to a structure for automatically inserting platinum wires into wax parts. Background Art
[0002] Investment precision casting, also known as precision investment casting, is a precision casting process with little or no cutting. It uses fusible materials such as wax to make a pattern. Refractory mud materials are filled in the hollow part of the pattern to form a ceramic core structure. Several layers of special refractory coatings are applied to the pattern. After drying and hardening to form an integral shell mold, the pattern is melted out of the mold with steam or hot water, and molten metal is poured into the original position of the pattern to obtain a casting.
[0003] During the casting process, it is usually necessary to insert platinum wires at the weak positions on the surface of the wax part, so that the platinum wires pass through the wax part and abut against the ceramic core, thereby realizing the support between the ceramic core and the mold through the platinum wires, to ensure that the ceramic core does not shake in the mold during processes such as dewaxing, handling, and pouring. At present, platinum wires are generally inserted manually.
[0004] However, due to the small size of the platinum wires, with a diameter of 0.5 mm and a length of only 5 mm, it is not easy for operators to pick up; and there are often many curved surfaces on the surface of the wax part, resulting in great difficulty in manual operation and a high abnormal rate, and there are problems such as the platinum wires not being inserted in place and damaging the surface roughness of the wax part.
[0005] In the above related technologies, there are defects that the insertion of platinum wires is difficult and the insertion quality is not easy to guarantee. Summary of the Utility Model
[0006] In order to reduce the difficulty of inserting platinum wires and improve the insertion quality at the same time, this application provides a structure for automatically inserting platinum wires into wax parts.
[0007] The structure for automatically inserting platinum wires into wax parts provided by this application adopts the following technical solutions:
[0008] An automatic platinum wire inserting structure for wax parts, where the wax parts are clamped between a ceramic core and a mold, comprising: a moving mechanism, with the first end of the moving mechanism fixed and the second end of the moving mechanism moving in space; a vacuum pumping mechanism provided on the moving mechanism; a holding mechanism provided at the second end of the moving mechanism, the holding mechanism including a vacuum connector, a housing, and a holding member. The first end of the vacuum connector is connected to the vacuum pumping mechanism, the second end of the vacuum connector is connected to the housing, a cavity is provided inside the housing, the first end portion of the holding member is connected to the housing, the second end portion of the holding member extends into the cavity, a gap is left between the second end portion of the holding member and the side wall of the cavity, an opening is provided on one side of the housing close to the second end portion of the holding member, the opening communicates with the cavity, the end face of the second end portion of the holding member is spaced from the opening, and the opening is used for inserting the first end of the platinum wire into the cavity. The vacuum pumping mechanism is used to pump vacuum in the cavity to form negative pressure at the opening. The end face of the second end portion of the holding member is used to hold the first end of the platinum wire so that the second end of the platinum wire can be inserted into the wax part and abut against the outer peripheral surface of the ceramic core to relatively fix the mold and the ceramic core; a control mechanism, the control mechanism is electrically connected to the moving mechanism, and the control mechanism is used to control the moving mechanism to move in space.
[0009] By adopting the above technical solution, the first end of the moving mechanism is fixedly arranged, enabling the second end of the moving mechanism to move in space with the first end as the support point, so as to drive the holding mechanism to move in space. Thus, the moving mechanism can be controlled by the control mechanism to move in space, move the platinum wire to a suitable position, insert the platinum wire into the wax part, and abut against the ceramic core, realizing the relative fixation of the mold sleeved on the outer periphery of the wax part and the ceramic core. Automatically inserting the platinum wire through a mechanical structure can reduce the operation difficulty of the operator compared with the operation of manually inserting the platinum wire. Only by controlling the moving mechanism through the control mechanism can the holding mechanism be driven to realize the operation of inserting the platinum wire. Among them, the vacuum pumping mechanism on the moving mechanism provides a vacuum pumping function for the holding mechanism. After the moving mechanism drives the holding mechanism to move to a preset position, the platinum wire is inserted into the opening. The vacuum pumping mechanism communicates with the cavity inside the housing through the vacuum connector, and negative pressure is formed at the opening through the gap between the second end portion of the holding member and the side wall of the cavity. The suction force can facilitate driving the platinum wire to move with the holding mechanism. The moving mechanism drives the holding mechanism to move to a suitable position of the wax part. Through the movement of the moving mechanism and the holding effect of the second end of the holding member on the first end of the platinum wire, the second end of the platinum wire is inserted into the wax part and the abutment against the ceramic core is realized, thereby completing the relative fixation of the platinum wire to the mold and the ceramic core. By controlling the spatial position of the second end of the moving mechanism through the control mechanism, the insertion of the platinum wire into different positions of the wax part can be realized. By using a mechanical structure, it helps to standardize the operation of inserting the platinum wire each time, reduce the abnormal rate, and improve the insertion quality of the platinum wire.
[0010] Optionally, the housing includes a fixing portion and a nozzle portion. Both the fixing portion and the nozzle portion are hollow to form a cavity. The fixing portion and the nozzle portion are detachably connected. The vacuum connector is connected to the fixing portion. The first end of the holding member is connected to the fixing portion. The opening is provided in the nozzle portion. The second end of the holding member passes through the fixing portion and extends into the nozzle portion.
[0011] By adopting the above technical solution, the fixing portion is used to connect the vacuum interface, the holding member and the nozzle portion. The nozzle portion is used to set the opening to realize the suction drive of the platinum wire. The detachable connection between the fixing portion and the nozzle portion can reduce the disassembly and assembly difficulty, so as to facilitate quick disassembly and assembly when it is necessary to check the inside of the cavity during maintenance and other operations, and reduce the maintenance difficulty.
[0012] Optionally, the end of the second end of the vacuum connector is spaced from the holding member.
[0013] By adopting the above technical solution, it can avoid the problem that the end of the second end of the vacuum connector extends into the cavity and contacts the holding member, resulting in the blockage of the gas flow channel between the vacuum pumping mechanism and the cavity, and the gas cannot flow between the vacuum connector and the cavity, ensuring the reliable formation of negative pressure at the opening, and thus ensuring the suction drive of the platinum wire.
[0014] Optionally, the holding mechanism further includes a connecting pipe. The two ends of the connecting pipe are respectively connected to the first end of the vacuum connector and the vacuum pumping mechanism.
[0015] By adopting the above technical solution, the setting of the connecting pipe can facilitate the setting of the relative position relationship between the vacuum pumping mechanism and the vacuum connector, so that the holding mechanism can facilitate the holding of the platinum wire and the insertion into the wax part.
[0016] Optionally, the connecting pipe is flexible.
[0017] By adopting the above technical solution, since the holding mechanism moves with the second end of the moving mechanism, when there is relative movement between the vacuum pumping mechanism and the holding mechanism, the flexible connecting pipe can reduce the risk of interference due to the movement of the holding mechanism.
[0018] Optionally, a limiting member is provided on the outer periphery of the opening. One end of the limiting member is connected to the housing. The limiting member is provided with a hollow cavity penetrating through both ends. The axis of the hollow cavity is on the same straight line as the axis of the opening. The limiting member is used to sleeved on the outer periphery of the platinum wire.
[0019] By adopting the above technical solution, the setting of the limiting member can, on the one hand, make the negative pressure exist not only at the opening position but also form a negative pressure in the hollow cavity of the limiting member, which helps to optimize the suction driving effect on the platinum wire; on the other hand, the limiting member can limit the platinum wire so that the platinum wire always extends along the axis direction of the opening, thereby improving the positioning accuracy when the platinum wire is inserted into the wax part and reducing the risk of deflection of the platinum wire during insertion.
[0020] Optionally, it further includes a tray, and a plurality of platinum wires are provided on the tray. The first ends of the platinum wires are inserted into the tray, so that the axes of the platinum wires extend along the direction perpendicular to the surface of the tray, and the plurality of platinum wires are arranged at intervals.
[0021] By adopting the above technical solution, the tray is used to carry a plurality of platinum wires and provide a placement position for the platinum wires. The platinum wires on the tray are all perpendicular to the surface of the tray, and the platinum wires are arranged at intervals, which can facilitate the insertion of the platinum wires into the opening, thereby reducing the alignment and assembly difficulty between the suction holding mechanism and the platinum wires.
[0022] Optionally, the moving mechanism is a six-axis industrial robot.
[0023] By adopting the above technical solution, the six-axis industrial robot can drive the suction holding mechanism to move in space, with high flexibility and high precision, which helps to achieve the precise positioning and insertion of the platinum wire on the wax part.
[0024] Optionally, the control mechanism includes a data processing component, and the data processing component is used to receive the force control data of the six-axis industrial robot and compare the force control data with the force threshold of the platinum wire.
[0025] By adopting the above technical solution, since the six-axis industrial robot can detect the contact force in real time when the platinum wire is inserted into the wax part, it can receive the contact force through the data processing component and compare the contact force with the force threshold when the platinum wire contacts the ceramic core, which helps to determine whether the platinum wire is inserted in place, thereby ensuring the insertion quality of the platinum wire.
[0026] Optionally, the vacuum pumping mechanism is a vacuum generator.
[0027] By adopting the above technical solution, the vacuum generator can form a negative pressure in the cavity, and the vacuum generator has a small volume, which is not only convenient for installation but also can reduce the risk of interference with other structures.
[0028] In summary, the present application includes at least one of the following beneficial technical effects:
[0029] 1. The first end of the moving mechanism is fixedly arranged so that the second end of the moving mechanism can move in space with the first end as the support point, facilitating the driving of the holding mechanism to move in space. Thus, the moving mechanism can be controlled by the control mechanism to move in space, move the platinum wire to a suitable position, insert the platinum wire into the wax part, and abut against the ceramic core, realizing the relative fixation of the mold sleeved outside the wax part and the ceramic core. Automatically inserting the platinum wire through a mechanical structure can reduce the operation difficulty of the operator compared with manually inserting the platinum wire. Only by controlling the moving mechanism through the control mechanism can the holding mechanism be driven to realize the operation of inserting the platinum wire. Among them, the vacuum pumping mechanism on the moving mechanism provides a vacuum pumping effect for the holding mechanism. After the moving mechanism drives the holding mechanism to move to a preset position and the platinum wire is inserted into the opening, the vacuum pumping mechanism communicates with the cavity in the shell through the vacuum joint, and a negative pressure is formed at the opening through the gap between the second end of the holding part and the side wall of the cavity. The suction force can facilitate driving the platinum wire to move with the holding mechanism. The moving mechanism drives the holding mechanism to move to a suitable position of the wax part. Through the movement of the moving mechanism and the abutting action of the second end of the holding part on the first end of the platinum wire, the second end of the platinum wire is inserted into the wax part and the abutment against the ceramic core is realized, thus completing the relative fixation of the mold sleeved outside the wax part and the ceramic core by the platinum wire. By controlling the spatial position of the second end of the moving mechanism through the control mechanism, the insertion of the platinum wire at different positions of the wax part can be realized. By using a mechanical structure, it helps to standardize the operation of inserting the platinum wire each time, reduce the abnormal rate, and improve the insertion quality of the platinum wire.
[0030] 2. The fixing part is used to connect the vacuum interface, the holding part, and the suction nozzle part. The suction nozzle part is used to set the opening to realize the suction drive of the platinum wire. The detachable connection between the fixing part and the suction nozzle part can reduce the disassembly and assembly difficulty, facilitating quick disassembly and assembly when it is necessary to check the situation inside the cavity during maintenance and other operations, and reducing the maintenance difficulty.
[0031] 3. The setting of the limiting part, on the one hand, can make the negative pressure exist not only at the opening position but also in the hollow cavity of the limiting part, which helps to optimize the suction drive effect on the platinum wire. On the other hand, the limiting part can limit the platinum wire, making the platinum wire always extend along the axis direction of the opening, thus improving the positioning accuracy when the platinum wire is inserted into the wax part and reducing the risk of deflection of the platinum wire during insertion. Description of the Drawings
[0032] Figure 1 is a schematic diagram of inserting a platinum wire into a wax part in an embodiment of the present application.
[0033] Figure 2 is a schematic diagram of the automatic platinum wire inserting structure for a wax part in an embodiment of the present application.
[0034] Figure 3 is a schematic diagram of the cooperation between the holding mechanism and the platinum wire in an embodiment of the present application.
[0035] Figure 4 It is a top view of the holding mechanism of the embodiment of the present application.
[0036] Figure 5 It is Figure 4 the sectional view taken along line A-A in
[0037] Description of the reference numerals:
[0038] 100, platinum wire; 200, wax part; 300, ceramic core;
[0039] 1, moving mechanism; 2, vacuum pumping mechanism; 3, holding mechanism; 31, vacuum joint; 32, housing; 321, fixing part; 322, suction nozzle part; 33, top holding part; 34, cavity; 35, opening; 36, limiting part; 4, tray. Detailed implementation manners
[0040] The following further describes the present application in detail with reference to the Figure 1 - drawings Figure 5 In this embodiment, unless otherwise clearly specified, "connection", "connection" and "fixation" are understood in a broad sense, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection and interaction between two components, etc., and can be understood according to specific circumstances.
[0041] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through other features therebetween. Moreover, in the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application. Without contrary description, the orientation terms such as "inside, outside" used in the present application refer to the contour of the corresponding component itself.
[0042] As Figure 1 and Figure 2As shown in the figure, an embodiment of the present application discloses an automatic platinum wire inserting structure for wax parts (hereinafter referred to as "the structure" for short). The mold is sleeved outside the wax part 200, the wax part 200 is sleeved outside the ceramic core 300, and the wax part 200 is clamped between the ceramic core 300 and the mold. The structure includes a moving mechanism 1, a vacuum pumping mechanism 2, a holding mechanism 3 and a control mechanism, which are used to insert the platinum wire 100 into the wax part 200 and abut against the outer peripheral surface of the ceramic core 300, so as to realize the support and relative fixation between the mold sleeved outside the wax part 200 and the ceramic core 300 through the platinum wire 100.
[0043] The first end of the moving mechanism 1 is fixed, and the second end of the moving mechanism 1 moves in space. The holding mechanism 3 is connected to the second end of the moving mechanism 1, and the control mechanism is electrically connected to the moving mechanism 1, and the control mechanism is used to control the movement of the moving mechanism 1 in space.
[0044] As Figure 1 、 Figure 2 and Figure 3 shown, the first end of the moving mechanism 1 is fixedly arranged, so that the second end of the moving mechanism 1 can move in space with the first end as the support point, so as to drive the holding mechanism 3 to move in space, so that the movement of the moving mechanism 1 in space can be controlled by the control mechanism, move the platinum wire 100 to a suitable position, realize inserting the platinum wire 100 into the wax part 200, and abut against the ceramic core 300, so as to realize the support and relative fixation between the mold and the ceramic core 300 through the platinum wire 100. Automatically inserting the platinum wire 100 through a mechanical structure can reduce the operation difficulty of the operator compared with the operation of manually inserting the platinum wire 100. Only by controlling the moving mechanism 1 through the control mechanism, the holding mechanism 3 can be driven to realize the operation of inserting the platinum wire 100.
[0045] As Figure 1 、 Figure 2 and Figure 3 shown, optionally, the moving mechanism 1 is a six-axis industrial robot. The six-axis industrial robot can drive the holding mechanism 3 to move in space, and has high flexibility and high precision, which helps to realize the precise positioning and insertion of the platinum wire 100 on the wax part 200. The control mechanism is used to instruct the action of the moving mechanism 1, and it can be integrated on the moving mechanism 1.
[0046] Optionally, the control mechanism includes a data processing component. The data processing component is configured to receive the force control data of the six-axis industrial robot and compare the force control data with the abutting force threshold of the platinum wire 100. Since the six-axis industrial robot can detect the abutting force in real time when the platinum wire 100 is inserted into the wax part 200, it can receive the abutting force through the data processing component and compare the abutting force with the abutting force threshold when the platinum wire 100 abuts against the ceramic core 300, which helps to determine whether the platinum wire 100 is inserted in place and thus ensures the insertion quality of the platinum wire 100.
[0047] As Figure 1 , Figure 2 and Figure 4 shown, the vacuum pumping mechanism 2 is connected to the moving mechanism 1. Optionally, the vacuum pumping mechanism 2 is a vacuum generator. The vacuum generator can create a negative pressure inside the holding mechanism 3, and the vacuum generator has a small volume, which is not only convenient for installation but also reduces the risk of interference with other structures.
[0048] As Figure 1 , Figure 2 and Figure 5 shown, the holding mechanism 3 includes a vacuum connector 31, a housing 32, and a holding member 33. The first end of the vacuum connector 31 is connected to the vacuum pumping mechanism 2, and the second end of the vacuum connector 31 is connected to the housing 32. A cavity 34 is provided inside the housing 32. The first end portion of the holding member 33 is connected to the housing 32, and the second end portion of the holding member 33 extends into the cavity 34. A gap is left between the second end portion of the holding member 33 and the side wall of the cavity 34. An opening 35 is provided on one side of the housing 32 near the second end portion of the holding member 33, and the opening 35 communicates with the cavity 34. The end face of the second end portion of the holding member 33 is spaced from the opening 35. The opening 35 is for inserting the first end of the platinum wire 100 into the cavity 34, and the vacuum pumping mechanism 2 is for evacuating the cavity 34 to create a negative pressure at the opening 35. The end face of the second end portion of the holding member 33 is for abutting against the first end of the platinum wire 100 so that the second end of the platinum wire 100 can be inserted into the wax part 200 and abut against the outer peripheral surface of the ceramic core 300 to support the mold and the ceramic core 300 after the wax part 200 melts.
[0049] The vacuum pumping mechanism 2 on the moving mechanism 1 provides a vacuum pumping effect for the holding mechanism 3. After the moving mechanism 1 drives the holding mechanism 3 to move to a preset position, the platinum wire 100 is inserted into the opening 35. The vacuum pumping mechanism 2 is connected to the cavity 34 inside the housing 32 through the vacuum connector 31. Since there is a gap between the second end of the holding member 33 and the side wall of the cavity 34, the vacuum connector 31 and the opening 35 can be connected through the gap, so that a negative pressure is formed at the opening 35, and the platinum wire 100 is driven to move with the holding mechanism 3 by suction. The moving mechanism 1 drives the holding mechanism 3 to move to a suitable position of the wax part 200. Through the movement of the moving mechanism 1 and the holding action of the second end of the holding member 33 on the first end of the platinum wire 100, the holding member 33 pushes the second end of the platinum wire 100 into the preset position of the wax part 200 and abuts against the ceramic core 300, so as to complete the relative fixation of the platinum wire 100 to the mold and the ceramic core 300, and reduce the risk that the ceramic core 300 shakes in the mold and affects the casting quality of the product after the mold and the wax part 200 are melted. By controlling the spatial position of the second end of the moving mechanism 1 through the control mechanism, the platinum wire 100 can be inserted into different positions of the wax part 200. By using a mechanical structure, it helps to standardize the operation of inserting the platinum wire 100 each time, reduce the abnormal rate, and improve the insertion quality of the platinum wire 100.
[0050] As Figure 2 , Figure 3 and Figure 5 shown, optionally, the structure further includes a tray 4. A plurality of platinum wires 100 are provided on the tray 4. The first ends of the platinum wires 100 are inserted into the tray 4, so that the axes of the platinum wires 100 extend in a direction perpendicular to the surface of the tray 4, and the plurality of platinum wires 100 are arranged at intervals. The tray 4 is used to carry a plurality of platinum wires 100 and provide a placement position for the platinum wires 100. The platinum wires 100 on the tray 4 are all perpendicular to the surface of the tray 4 and are arranged at intervals, which can facilitate the insertion of the platinum wires 100 into the opening 35, thereby reducing the alignment and assembly difficulty between the holding mechanism 3 and the platinum wires 100. The tray 4 can be provided with mounting holes for placing the platinum wires 100, or the platinum wires 100 can be inserted into the tray 4 to achieve the bearing function. The material and shape of the tray 4 are not limited and can be selected according to the actual situation.
[0051] Optionally, the housing 32 includes a fixing portion 321 and a nozzle portion 322. Both the fixing portion 321 and the nozzle portion 322 are hollow to form a cavity 34, and the fixing portion 321 and the nozzle portion 322 are detachably connected. The vacuum connector 31 is connected to the fixing portion 321, the first end of the ejector 33 is connected to the fixing portion 321, an opening 35 is provided in the nozzle portion 322, and the second end of the ejector 33 passes through the fixing portion 321 and extends into the nozzle portion 322. The fixing portion 321 is used to connect the vacuum connector 31, the ejector 33 and the nozzle portion 322, and the nozzle portion 322 is used to provide the opening 35 to realize the suction drive of the platinum wire 100; the detachably connected fixing portion 321 and nozzle portion 322 can reduce the disassembly and assembly difficulty, so as to facilitate quick disassembly and assembly when it is necessary to check the inside of the cavity 34 during maintenance and other operations, and reduce the maintenance difficulty. A screwing connection method can be adopted between the vacuum connector 31 and the fixing portion 321, and between the nozzle portion 322 and the fixing portion 321. The ejector 33 can be in a T shape, with one end of the T shape clamped to the end of the fixing portion 321 away from the nozzle portion 322, and the other end of the T shape extending into the cavity 34. The cross-section of the end of the ejector 33 extending into the cavity 34 can be circular, and its diameter is smaller than the diameter of the cavity 34, so as to be able to evacuate the opening 35 through the evacuation mechanism 2. A gas passage is provided in the vacuum connector 31 to enable the connection between the evacuation mechanism 2 and the cavity 34, so that a negative pressure environment is formed in the cavity 34. A connecting plate can be provided on the ejector 33 to connect with the second end of the moving mechanism 1 through the connecting plate.
[0052] As Figure 1 , Figure 2 and Figure 5 shown, optionally, the end of the second end of the vacuum connector 31 is spaced from the ejector 33, which can avoid the problem that the end of the second end of the vacuum connector 31 extends into the cavity 34 and contacts the ejector 33, resulting in the blockage of the gas flow channel between the evacuation mechanism 2 and the cavity 34 and preventing the gas from flowing between the vacuum connector 31 and the cavity 34, ensuring the reliable formation of negative pressure at the opening 35, and thus ensuring the suction drive of the platinum wire 100.
[0053] Optionally, the suction mechanism 3 further includes a connecting pipe (not shown in the figure), and both ends of the connecting pipe are respectively connected to the first end of the vacuum connector 31 and the evacuation mechanism 2. The setting of the connecting pipe can facilitate the setting of the relative position relationship between the evacuation mechanism 2 and the vacuum connector 31, so that the suction mechanism 3 can facilitate the suction of the platinum wire 100 and the insertion into the wax part 200.
[0054] As Figure 1 , Figure 2 and Figure 5As shown, optionally, the connecting pipe is flexible. Since the holding mechanism 3 needs to move with the second end of the moving mechanism 1, when there is relative movement between the vacuum pumping mechanism 2 and the holding mechanism 3, the flexible connecting pipe can reduce the risk of interference caused by the movement of the holding mechanism 3.
[0055] As Figure 1 , Figure 2 and Figure 5 As shown, optionally, a limiting member 36 is provided on the outer periphery of the opening 35. One end of the limiting member 36 is connected to the housing 32. The limiting member 36 is provided with a hollow cavity penetrating through both ends, and the axis of the hollow cavity is on the same straight line as the axis of the opening 35. The limiting member 36 is used to sleeved on the outer periphery of the platinum wire 100. The setting of the limiting member 36 can, on the one hand, make the negative pressure exist not only at the position of the opening 35 but also form a negative pressure in the hollow cavity of the limiting member 36, which helps to optimize the suction driving effect on the platinum wire 100; on the other hand, the limiting member 36 can limit the platinum wire 100, so that the platinum wire 100 always extends along the axis direction of the opening 35, thereby improving the positioning accuracy when the platinum wire 100 is inserted into the wax part 200 and reducing the risk of deflection of the platinum wire 100 during insertion. The cross-section of the hollow cavity of the limiting member 36 and the cross-section of the opening 35 can both be circular, and their diameters can both be equal to or slightly larger than the diameter of the platinum wire 100, so that the platinum wire 100 can be inserted and a certain limiting effect on the swaying of the platinum wire 100 can be achieved, reducing the risk of deflection of the platinum wire 100 during insertion, improving the insertion quality of the platinum wire 100 on the wax part 200, and enabling the platinum wire 100 to play a reliable supporting role between the mold and the ceramic core 300. It should be noted that this structure is provided with a necessary sealing structure so that a negative pressure can be formed in the cavity 34 and the platinum wire 100 can be sucked up at the opening 35.
[0056] It can be understood that this structure also includes necessary structures for functions such as connection, support, drive, limit, and control, so that this structure can operate normally; parameters such as the shape, size, material, and setting quantity of each part of this structure can be determined according to needs as long as the corresponding functions can be achieved.
[0057] The implementation principle of an automatic platinum wire inserting structure for wax parts in an embodiment of this application is as follows: By setting a control mechanism, the moving mechanism 1 moves to the tray 4, and the vacuum pumping mechanism 2 evacuates the cavity 34 to align the opening 35 with the platinum wire 100. Through the movement of the moving mechanism 1, the first end of the platinum wire 100 passes through the limiting member 36 and the opening 35 and extends into the cavity 34. At this time, the first end of the platinum wire 100 abuts against the end face of the second end part of the top holding member 33, and the platinum wire 100 is sucked up by the negative pressure of the cavity 34, the opening 35 and the limiting member 36; The control mechanism makes the moving mechanism 1 drive the holding mechanism 3 to move to a suitable position of the wax part 200. Through the movement of the moving mechanism 1 driving the holding mechanism 3 and the top holding member 33 pushing the second end of the platinum wire 100 to insert into the wax part 200 and abut against the ceramic core 300; The moving mechanism 1 measures the abutting force in real time, and the data processing component receives the measurement data and compares it with the abutting force threshold when the platinum wire 100 abuts against the ceramic core 300, so as to judge whether the platinum wire 100 has achieved abutment against the ceramic core 300 and ensure that the insertion depth of the platinum wire 100 is sufficient; Due to the use of a mechanical structure, compared with manual insertion, it is easier to control the positioning of the platinum wire 100 and the direction of the force applied to the platinum wire 100. It not only reduces the risks of misalignment, deflection and insufficient insertion depth of the platinum wire 100 more easily, improves the insertion quality of the platinum wire 100, but also reduces the difficulty of the operator inserting the platinum wire 100 and improves the efficiency.
[0058] The above are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.
Claims
1. A wax piece automatic platinum wire insertion structure, wherein the wax piece (200) is sandwiched between a ceramic core (300) and a mold, characterized in that: include: A moving mechanism (1), wherein a first end of the moving mechanism (1) is fixed, and a second end of the moving mechanism (1) moves in space; A vacuum extraction mechanism (2) is arranged on the moving mechanism (1); The holding mechanism (3) is arranged at the second end of the moving mechanism (1), and comprises a vacuum joint (31), a shell (32) and a holding piece (33). The first end of the vacuum joint (31) is connected to the vacuum pumping mechanism (2), the second end of the vacuum joint (31) is connected to the shell (32), a cavity (34) is provided in the shell (32), the first end of the holding piece (33) is connected to the shell (32), the second end of the holding piece (33) extends into the cavity (34), a gap is left between the second end of the holding piece (33) and the side wall of the cavity (34), and the shell (32) is close to the holding piece (33). ) is provided with an opening (35) on one side of the second end portion, the opening (35) being connected to the cavity (34), the end surface of the second end portion of the supporting member (33) being spaced apart from the opening (35), the opening (35) being used to allow the first end of the platinum wire (100) to be inserted into the cavity (34), the vacuum pumping mechanism (2) being used to vacuum the cavity (34) so as to form a negative pressure at the opening (35), the end surface of the second end portion of the supporting member (33) being used to support the first end of the platinum wire (100) so that the second end of the platinum wire (100) can be inserted into the wax piece (200) and abut against the outer peripheral surface of the ceramic core (300), so that the mold and the ceramic core (300) are relatively fixed; A control mechanism, the control mechanism is electrically connected to the moving mechanism (1), and the control mechanism is used to control the moving mechanism (1) to move in space.
2. The wax part automatic platinum wire insertion structure according to claim 1, characterized in that: The shell (32) comprises a fixing portion (321) and a suction nozzle portion (322); the fixing portion (321) and the suction nozzle portion (322) are both hollow and used to form a cavity (34); the fixing portion (321) and the suction nozzle portion (322) are detachably connected; the vacuum joint (31) is connected to the fixing portion (321); the first end of the supporting member (33) is connected to the fixing portion (321); the opening (35) is provided at the suction nozzle portion (322); and the second end of the supporting member (33) passes through the fixing portion (321) and extends into the suction nozzle portion (322).
3. The wax part automatic platinum wire insertion structure according to claim 1, characterized in that: The end portion of the second end of the vacuum joint (31) is spaced apart from the supporting member (33).
4. The wax part automatic platinum wire insertion structure according to claim 1, characterized in that: The suction and holding mechanism (3) further comprises a connecting tube, the two ends of which are respectively connected to the first end of the vacuum joint (31) and the vacuum pumping mechanism (2).
5. The wax piece automatic platinum wire insertion structure according to claim 4, characterized in that: The connecting pipe is flexible.
6. The wax part automatic platinum wire insertion structure according to claim 1, characterized in that: A stopper (36) is provided on the periphery of the opening (35), one end of the stopper (36) is connected to the housing (32), the stopper (36) is provided with a hollow cavity penetrating through both ends, the axis of the hollow cavity and the axis of the opening (35) are located in the same straight line, and the stopper (36) is used to be sleeved on the periphery of the platinum wire (100).
7. The wax piece automatic platinum wire insertion structure according to claim 1, characterized in that: It also comprises a tray (4), wherein a plurality of platinum wires (100) are arranged on the tray (4), and the first ends of the platinum wires (100) are inserted into the tray (4), so that the axes of the platinum wires (100) extend in a direction perpendicular to the surface of the tray (4), and the plurality of platinum wires (100) are arranged at intervals.
8. The wax piece automatic platinum wire insertion structure according to claim 1, characterized in that: The moving mechanism (1) is a six-axis industrial robot.
9. The wax piece automatic platinum wire insertion structure according to claim 8, characterized in that: The control mechanism comprises a data processing component, wherein the data processing component is used to receive force control data of the six-axis industrial robot and compare the force control data with a contact force threshold of the platinum wire (100).
10. The wax piece automatic platinum wire insertion structure according to claim 1, characterized in that: The vacuum extraction mechanism (2) is a vacuum generator.