Vacuum furnace mechanism for lifting products at fixed distance

Abstract

The utility model discloses a vacuum furnace mechanism for lifting a product at a fixed distance, relates to the technical field of semiconductor chip welding, and aims to solve the problems that in the prior art, the lifting distance is controlled by a sensor and an induction sheet, the lifting distance of a movement mechanism is controlled by a worm gear and a worm, after the operation time is long, gaps are accumulated, and the product quality is influenced. The device comprises a moving part, a connecting part, a power part and a lifting part, the lifting part comprises a bottom plate and a support structure detachably mounted on one side of the upper surface of the bottom plate, a supporting rod is arranged at the top of the support structure, and a cam push rod is detachably mounted at the bottom of the support structure; a second bearing is detachably arranged in the bottom end of the cam push rod, a fixing bolt used for disassembling and assembling the second bearing is installed on one side of the bottom end of the cam push rod in a threaded fit mode, the connecting part comprises a bearing seat, and the power part comprises a cam shaft. The reciprocating lifting mechanism has the advantage of realizing long-term stable reciprocating lifting of products.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor chip welding, and more specifically, to a vacuum furnace mechanism for lifting products at a fixed distance. Background Art

[0002] With the development of semiconductor technology, electronic technology is developing towards high power, high density and integration, and higher and more comprehensive reliability requirements are put forward for the packaging and welding of high-power devices. In the prior art, the control of the lifting distance is controlled by a sensor and an induction sheet, and the movement mechanism controls the lifting distance by a worm and worm gear. However, there is a gap in the threaded connection of the worm and worm gear. After a long operation time, the gap accumulates, the lifting distance of the product will become lower, and the lower limit alarm of the sensor will also be triggered, which requires frequent time-consuming adjustment. In severe cases, the product may not be able to be lifted.

[0003] In view of this, we propose a vacuum furnace mechanism for lifting products at a fixed distance. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a vacuum furnace mechanism for lifting products at a fixed distance, so as to solve the technical problem that in the current prior art, the control of the lifting distance is controlled by a sensor and an induction sheet, and the movement mechanism controls the lifting distance by a worm and worm gear. After a long operation time, the gap accumulates and the lifting distance of the product becomes lower.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: A vacuum furnace mechanism for lifting products at a fixed distance, including a moving part, a connecting part, a power part, and a lifting part;

[0006] The lifting part includes a bottom plate and a bracket structure detachably installed on one side of the upper surface of the bottom plate. A support rod is provided at the top of the bracket structure, and a cam push rod is detachably installed at the bottom of the bracket structure. A second bearing is detachably provided inside the bottom end of the cam push rod, and a fixing bolt for disassembling and assembling the second bearing is threadedly installed on one side of the bottom end of the cam push rod;

[0007] The connecting part includes a bearing seat;

[0008] The power part includes a camshaft;

[0009] The power part includes a stepping motor and a motor mounting plate detachably installed on one side thereof. The stepping motor is connected to the camshaft. A first coupling is provided between the camshaft and the machine shaft of the stepping motor. A cam body is fixedly installed on the outer edge surface of the camshaft. A first bearing is installed inside the bearing seat, and the camshaft is installed inside the first bearing.

[0010] By controlling the stepping motor to drive the camshaft to rotate, the present utility model can apply a reciprocating thrust to the second bearing, thereby driving the cam push rod, the bracket structure and the support rod to perform reciprocating lifting. The reciprocating lifting of a fixed distance is achieved through the movement of the cam body, and there is no gap between the cam body and the cam push rod, and the lifting distance will not change during long-term operation.

[0011] Preferably, a connecting optical shaft is provided at one end of the camshaft away from the first coupling, and a second coupling is connected between the connecting optical shaft and the camshaft.

[0012] Preferably, the bracket structure includes linear bearings symmetrically and detachably installed on one side of the upper end surface of the bottom plate. A guiding optical shaft is detachably installed inside the linear bearings, and a lower connecting plate is movably lifted and installed outside the top end of the guiding optical shaft.

[0013] Preferably, an upper connecting plate is detachably installed in the middle of the upper end surface of the lower connecting plate, and the bottom end of the support rod is structurally connected to the upper connecting plate.

[0014] Preferably, the cam push rod is detachably connected to the lower end surface of the lower connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] By controlling the stepping motor to drive the camshaft to rotate, the present utility model can apply a reciprocating thrust to the second bearing, thereby driving the cam push rod, the bracket structure and the support rod to perform reciprocating lifting. The reciprocating lifting of a fixed distance is achieved through the movement of the cam body, and there is no gap between the cam body and the cam push rod, and the lifting distance will not change during long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] Explanation of the reference numerals in the figure:

[0019] 1. Support rod; 2. Upper connecting plate; 3. Lower connecting plate; 4. Stepping motor; 5. Motor mounting plate; 6. Bottom plate; 7. First coupling; 8. Guiding optical shaft; 9. Linear bearing; 10. Bearing seat; 11. First bearing; 12. Cam body; 13. Second coupling; 14. Connecting optical shaft; 15. Camshaft; 16. Second bearing; 17. Fixing bolt; 18. Cam push rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] As Figure 1As shown in the figure, a vacuum furnace mechanism for a fixed-distance lifting product according to the present utility model includes a moving part, a connecting part, a power part, and a lifting part. The lifting part includes a bottom plate 6 and a bracket structure detachably installed on one side of the upper surface of the bottom plate 6. A support rod 1 is provided at the top of the bracket structure, and a cam push rod 18 is detachably installed at the bottom of the bracket structure. A second bearing 16 is detachably provided inside the bottom end of the cam push rod 18, and a fixing bolt 17 for disassembling and assembling the second bearing 16 is threadedly installed on one side of the bottom end of the cam push rod 18. The connecting part includes a bearing seat 10, and the power part includes a camshaft 15. The power part includes a stepping motor 4 and a motor mounting plate 5 detachably installed on one side thereof. The stepping motor 4 is connected to the camshaft 15. A first coupling 7 is provided between the camshaft 15 and the motor shaft of the stepping motor 4, and a cam body 12 is fixedly installed on the outer edge surface of the camshaft 15. A first bearing 11 is installed inside the bearing seat 10, and the camshaft 15 is installed inside the first bearing 11.

[0021] In an embodiment of the present utility model, a connecting optical shaft 14 is provided at one end of the camshaft 15 away from the first coupling 7, and a second coupling 13 is connected between the connecting optical shaft 14 and the camshaft 15.

[0022] In an embodiment of the present utility model, the bracket structure includes linear bearings 9 symmetrically and detachably installed on one side of the upper end surface of the bottom plate 6. A guiding optical rod 8 is detachably installed inside the linear bearings 9. A lower connecting plate 3 is movably installed for lifting outside the top end of the guiding optical rod 8. An upper connecting plate 2 is detachably installed at the center of the upper end surface of the lower connecting plate 3. The bottom end of the support rod 1 is structurally connected to the upper connecting plate 2, and the cam push rod 18 is detachably connected to the lower end surface of the lower connecting plate 3.

[0023] Working principle: This embodiment provides a vacuum furnace mechanism for a fixed-distance lifting product. When in use, by starting the stepping motor 4, the motor shaft of the stepping motor 4 rotates and drives the camshaft 15 to rotate through the first coupling 7, so that the cam body 12 rotates to apply a reciprocating thrust to the second bearing 16, thereby driving the cam push rod 18, the bracket structure, and the support rod 1 to perform reciprocating lifting under the sliding cooperation of the lower connecting plate 3 and the guiding optical rod 8, and realizing fixed-distance lifting through the movement of the cam body 12, so as to realize the stable lifting of the product.

[0024] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model according to the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A vacuum furnace mechanism for lifting products at a fixed distance, characterized in that: It includes a moving part, a connecting part, a power part and a lifting part; The lifting portion comprises a base plate (6) and a bracket structure detachably mounted on one side of the upper surface of the base plate (6); a support rod (1) is arranged on the top of the bracket structure, and a cam push rod (18) is detachably mounted on the bottom of the bracket structure; a second bearing (16) is detachably mounted inside the bottom end of the cam push rod (18), and a fixing bolt (17) for disassembling and assembling the second bearing (16) is threadedly mounted on one side of the bottom end of the cam push rod (18); The connecting portion comprises a bearing seat (10); The power unit comprises a camshaft (15); The power unit comprises a stepper motor (4) and a motor mounting plate (5) detachably mounted on one side of the stepper motor (4), the stepper motor (4) being connected to a camshaft (15), a coupling (7) being arranged between the camshaft (15) and the shaft of the stepper motor (4), a cam body (12) being fixedly mounted on the outer edge surface of the camshaft (15), a bearing (11) being mounted in the bearing seat (10), and the camshaft (15) being mounted in the bearing (11).

2. A vacuum furnace mechanism for lifting products at a fixed distance according to claim 1, characterized in that: A connecting optical axis (14) is provided at one end of the camshaft (15) away from the coupling one (7), and a coupling two (13) is connected between the connecting optical axis (14) and the camshaft (15).

3. The vacuum furnace mechanism for lifting products at a fixed distance according to claim 1, characterized in that: The support structure comprises a linear bearing (9) symmetrically and detachably mounted on one side of the upper end surface of the base plate (6), a guide light rod (8) being detachably mounted in the linear bearing (9), and a lower connecting plate (3) being movably mounted on the top of the guide light rod (8) in a lifting manner.

4. A vacuum furnace mechanism for lifting products at a fixed distance according to claim 3, characterized in that: An upper connecting plate (2) is detachably mounted in the center of the upper end surface of the lower connecting plate (3), and the bottom end of the support rod (1) is structurally connected to the upper connecting plate (2).

5. A vacuum furnace mechanism for lifting products at a fixed distance according to claim 4, characterized in that: The cam push rod (18) is detachably connected to the lower end surface of the lower connecting plate (3).

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