Jacking mechanism capable of improving influence of supporting counterforce

Abstract

The utility model discloses a jacking mechanism capable of improving support counterforce influence, which is characterized in that a jacking platform capable of moving up and down is supported by a mechanism frame through a plurality of support rods, the jacking platform is provided with a plurality of product support tools for supporting specific positions of products, and the mechanism frame is provided with a part support tool penetrating through the jacking platform. The top of the part supporting tool is matched with a part to be pressed and pressed into a product in the pressing process. A jacking air cylinder is further arranged between the jacking platform and the mechanism frame, the fixed end of the jacking air cylinder is connected with the mechanism frame, the movable end of the jacking air cylinder is connected with the jacking platform, and the jacking air cylinder is connected with the electric proportional valve in series through a pipeline. Compared with the prior art, the technical scheme of the utility model has the advantages of controllable press fitting, strong compatibility, high automation degree and the like, and can effectively improve the reliability of the installation process of parts and products and improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of parts pressing technology, and in particular to a lifting mechanism that improves the effect of support reaction force. Background Technology

[0002] In the field of machining, to achieve the final assembly of a product or component, it is often necessary to press certain parts into designated positions on the product to achieve connection and assembly. Currently, there are two main methods for supporting parts: the first is a spring-type support mechanism, and the second is a lifting structure using a cylinder and a mechanical pressure-reducing valve.

[0003] The first method uses springs as the main support component, and its elastic coefficient is a fixed value. Therefore, if the elastic support force of the spring support mechanism is much greater than the weight of the part itself, the pressing force displayed by the press during the working process includes the support reaction force, thus it cannot truly reflect the pressing force of the product. Furthermore, the reaction force during the pressing process is not constant and is uncontrollable. The effect of the spring support mechanism on products with different weights varies greatly, and it cannot be compatible with products with large weight differences.

[0004] The second type of cylinder plus mechanical pressure reducing valve lifting mechanism can ensure constant support reaction force during pressing, but it requires manual adjustment for products with different gravity, which is not conducive to automated product changeover or in scenarios where multiple parts are produced together, and therefore cannot work reliably.

[0005] Ensuring constant and controllable support reaction force during the press-fitting process, minimizing the impact on press-fitting, and being compatible with press-fitting and mixed production of various highly differentiated parts, automatic changeover, and reduced manual intervention are all crucial for improving production efficiency. Summary of the Invention

[0006] The main purpose of this invention is to propose a lifting mechanism that improves the influence of support reaction force, which is controllable in press-fitting, highly compatible, and highly automated, aiming to improve the reliability of the parts and products installation process and increase production efficiency.

[0007] To achieve the above objectives, this utility model proposes a lifting mechanism to improve the influence of support reaction force, comprising a mechanism frame disposed below, the mechanism frame supporting a lifting platform that can move up and down through several support rods, the lifting platform having several product support fixtures for supporting specific positions of the products, and a part support fixture penetrating the lifting platform through the mechanism frame, the top of the part support fixture engaging with the part to be pressed and being pressed into the product during the pressing process; a lifting cylinder is also provided between the lifting platform and the mechanism frame, the fixed end of the lifting cylinder being connected to the mechanism frame, the movable end of the lifting cylinder being connected to the lifting platform, and the lifting cylinder being connected in series with an electric proportional valve through a pipeline.

[0008] Preferably, the bottom of the lifting cylinder is a fixed end, and the bottom of the lifting cylinder passes through the mechanism frame and is fixedly connected to the mechanism frame through the first bracket; the top of the lifting cylinder is a movable end and is fixedly connected to the bottom surface of the lifting platform.

[0009] Preferably, the lifting cylinder is connected to the electro-proportional valve through a first pipeline, and the electro-proportional valve is connected to an external air source through a second pipeline; the electro-proportional valve adjusts the air supply ratio according to the gravity and / or pressure changes during the pressing process to control the air pressure entering the lifting cylinder.

[0010] Preferably, the part support fixture includes a first part support fixture and a second part support fixture, the top heights of the first part support fixture and the second part support fixture are different or the same, and the first part support fixture and the second part support fixture adjust their actual top working heights through their bottom drive mechanisms.

[0011] Preferably, the housing side of the first part support fixture and the second part support fixture is provided with a first sliding sleeve that is slidably connected to the first smooth rod provided on the lifting platform.

[0012] Preferably, the lifting platform is equipped with different product support fixtures at different positions. Before the pressing stage, the mechanism frame and the product support fixtures support the product simultaneously.

[0013] Preferably, the support rod disposed between the mechanism frame and the lifting platform includes a support body and a support base. The support body is slidably connected to a second sliding sleeve disposed on the bottom surface of the lifting platform. A spring is disposed between the support base and the second sliding sleeve, and the spring is sleeved on the outer periphery of the support body.

[0014] Preferably, the lifting platform is provided with a quick replacement platform, which is connected to the lifting platform via a quick knob, and the surface of the quick replacement platform is provided with several product support fixtures.

[0015] The technical solution of this utility model has the following advantages over the prior art:

[0016] The mechanism frame of this utility model supports a lifting platform that can move up and down via several support rods. The lifting platform is equipped with several product support fixtures for supporting specific positions of the products. The mechanism frame has a part support fixture that passes through the lifting platform. The top of the part support fixture mates with the part to be pressed and is pressed into the product during the pressing process. A lifting cylinder is also provided between the lifting platform and the mechanism frame. The fixed end of the lifting cylinder is connected to the mechanism frame, and the movable end of the lifting cylinder is connected to the lifting platform. The lifting cylinder is connected in series with an electric proportional valve through a pipeline to ensure that the support reaction force is constant and controllable during the pressing process, and to minimize the impact on the product pressing. At the same time, it can accommodate the pressing of various products with large differences, and can also accommodate mixed production or automatic changeover, reducing manual intervention and achieving a high degree of automation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the lifting mechanism of this utility model for improving the effect of support reaction force;

[0019] Figure 2 This is a partial three-dimensional structural diagram of the lifting mechanism of this utility model that improves the effect of support reaction force.

[0020] Explanation of icon numbers:

[0021] 1. Mechanism frame; 2. Support rod; 21. Support body; 22. Support base; 23. Second sliding sleeve; 24. Spring; 3. Lifting platform; 31. Quick change table; 32. Quick knob; 4. Product support fixture; 5. Part support fixture; 6. Lifting cylinder; 7. Electro-proportional valve; 8. First bracket; 9. Bottom drive mechanism; 10. First sliding sleeve; 11. First smooth rod.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model proposes a lifting mechanism to improve the effect of support reaction force.

[0025] Please see Figure 1-2 The lifting mechanism for improving the influence of support reaction force in this embodiment of the utility model includes a mechanism frame 1 disposed below. The mechanism frame 1 supports a lifting platform 3 that can move up and down through a plurality of support rods 2. The lifting platform 3 is provided with a plurality of product support fixtures 4 for supporting products (not shown in the figure) at specific positions. The mechanism frame 1 is provided with a part support fixture 5 that passes through the lifting platform 3. The top of the part support fixture 5 cooperates with the part to be pressed (not shown in the figure) and is pressed into the product during the pressing process. A lifting cylinder 6 is also provided between the lifting platform 3 and the mechanism frame 1. The fixed end of the lifting cylinder 6 is connected to the mechanism frame 1, and the movable end of the lifting cylinder 6 is connected to the lifting platform 3. The lifting cylinder 6 is connected in series with an electric proportional valve 7 through a pipeline.

[0026] Specifically, the bottom of the lifting cylinder 6 of this invention is a fixed end, passing through the mechanism frame 1 and fixedly connected to the mechanism frame 1 via the first bracket 8; the top of the lifting cylinder 6 is a movable end and fixedly connected to the bottom surface of the lifting platform 3. Therefore, in actual installation, the bottom end of the lifting cylinder 6 is fixedly connected to the mechanism frame 1 via the first bracket 8, while the movable end of the lifting cylinder 6 is set upwards to achieve lifting or lowering of the lifting platform 3. Furthermore, the way the lifting cylinder 6 passes through the mechanism frame 1 allows for the selection of a larger lifting cylinder 6 to increase the lifting stroke.

[0027] Preferably, the lifting cylinder 6 of this utility model is connected to the electric proportional valve 7 through the first pipeline, and the electric proportional valve 7 is connected to the external air source through the second pipeline. Therefore, in actual application, the electric proportional valve 7 adjusts the ventilation ratio or adjusts the opening or closing size of the valve according to the gravity and / or pressure change during the pressing process, controls the air pressure entering the lifting cylinder 6, and realizes the lifting cylinder 6 to rise, fall, or adaptively adjust the actual lifting force of the lifting cylinder 6.

[0028] Preferably, the part support fixture 5 of this utility model includes a first part support fixture and a second part support fixture. The top heights of the first part support fixture and the second part support fixture are different or the same. The actual working height of the top of the first part support fixture and the second part support fixture is adjusted by their bottom drive mechanism 9. In the actual production process, it is necessary to place the part to be pressed on the top position of the first part support fixture and the second part support fixture, and to place the product on the corresponding support fixture to cooperate with the subsequent pressing process. Furthermore, by adjusting the actual working height of the first part support fixture and the second part support fixture, it is possible to accommodate pressing of different products or parts in different positions.

[0029] More preferably, the housing sides of the first and second part support fixtures are provided with first sliding sleeves 10, which are slidably connected to the first guide rod 11 provided on the lifting platform 3. The first sliding sleeves 11 on the sides ensure that the first and second part support fixtures can slide axially along the first guide rod 11, and ensure the reliability of their actual working process.

[0030] In addition, the lifting platform 3 of this utility model is equipped with different product support fixtures 4 at different positions. Before the pressing stage, the mechanism frame 1 and the product support fixtures 4 support the product at the same time. The mechanism frame 1 provides overall support for the product, and the product support fixtures 4 provide support or positioning for different positions of the product to ensure the reliability of the product in the placement state. The product support fixtures 4 can be flat to support the internal plane of the product, or conical positioning columns can be inserted into the positioning holes inside the product for positioning and installation.

[0031] In this utility model, the support rod 2, which is set between the mechanism frame 1 and the lifting platform 3, includes a support body 21 and a support base 22. The support body 21 is slidably connected to the second sliding sleeve 23 set on the bottom surface of the lifting platform 3. A spring 24 is provided between the support base 22 and the second sliding sleeve 23. The spring 24 is sleeved on the outer periphery of the support body 21. The support rod 2 supports the lifting platform 3 and ensures the reliability of its up and down movement. In addition, the spring 24 enables the lifting platform 3 to have a certain elastic support force in the non-lifting stage.

[0032] Preferably, the lifting platform 3 is provided with a quick replacement table 31, which is connected to the lifting platform 3 via a quick knob 32. The surface of the quick replacement table 31 is provided with several product support fixtures 4. Different types of lifting platforms 3 can be quickly replaced by the quick knob 32 to accommodate different types of products for the lifting process, thereby reducing production costs.

[0033] The working principle of the lifting mechanism of this utility model that improves the effect of support reaction force is as follows:

[0034] Please see Figure 1-2 Before pressing the part into the product, the product needs to be placed on the lifting platform 3, and the part is supported and fixed by the product support fixture 4. The lifting platform 3 is then moved to the appropriate position by the lifting cylinder 6. The pressed part is placed on top of the part support fixture 5 and fixed in place. The part needs to be placed in a fixed and stable position to prevent it from tipping over or shifting during the pressing process. The pressing device located at the top presses the part downwards and presses it into the corresponding position of the product, making the part and the product an integrated assembly. During the pressing process, since the lifting cylinder 3 and the electro-proportional valve 7 are connected in series through pipelines, the operating pressure of the lifting cylinder 6 is adjusted in real time by adjusting the opening of the electro-proportional valve 7.

[0035] Throughout the pressing process, the operator has already placed the parts to be pressed onto the part support fixture 5, while the product to be assembled has been fixedly placed on the lifting platform 3 or its components have been temporarily supported on the mechanism frame 1. Before pressing, the lifting platform 3 is lifted to a suitable position, such as the highest position, using the lifting cylinder 6. At this point, the calibration pre-formulation is output through the electro-proportional valve 7, which controls the actual lifting force of the lifting cylinder 6, making it slightly greater than the total weight of the product, all the support fixtures, and the lifting platform itself.

[0036] After the product and parts are placed securely, the pressing device above the mechanism frame 1 presses the parts and products down simultaneously. During the pressing process, the parts are pressed into the product. After pressing to the designated position, the press device resumes upward movement. At this time, the output of the electro-proportional valve 7 is much greater than the opening and closing degree before pressing, so the lifting cylinder 6 raises the lifting platform back to the high position or returns it to the original position, so as to ensure that the next product is placed in the same initial position as the previous one.

[0037] The lifting mechanism of this invention, which improves the effect of support reaction force, eliminates the self-weight of the product and all supporting fixtures during press-fitting via an electro-proportional valve 7, outputting a constant and relatively small support reaction force. Furthermore, it can automatically execute preset parameters using a PLC according to different press-fitting formations or different product types, greatly improving the press-fitting effect and being compatible with various product press-fitting assembly processes. After press-fitting, it outputs a large lifting force to ensure the consistency of the next press-fitting position, avoiding the initial position inconsistencies that may occur in existing technologies, which could affect automated feeding.

[0038] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A lifting mechanism for improving the effect of support reaction force, characterized in that, The system includes a lower mechanism frame that supports a vertically movable lifting platform via several support rods. The lifting platform is equipped with several product support fixtures for supporting specific positions of the products. The mechanism frame has a part support fixture that passes through the lifting platform. The top of the part support fixture mates with the part to be pressed and is pressed into the product during the pressing process. A lifting cylinder is also provided between the lifting platform and the mechanism frame. The fixed end of the lifting cylinder is connected to the mechanism frame, and the movable end of the lifting cylinder is connected to the lifting platform. The lifting cylinder is connected in series with an electro-proportional valve via a pipeline.

2. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The bottom of the lifting cylinder is a fixed end, which passes through the mechanism frame and is fixedly connected to the mechanism frame through the first bracket; the top of the lifting cylinder is a movable end and is fixedly connected to the bottom surface of the lifting platform.

3. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The lifting cylinder is connected to the electro-proportional valve through a first pipeline, and the electro-proportional valve is connected to an external air source through a second pipeline. The electro-proportional valve adjusts the air supply ratio according to the gravity and / or pressure changes during the pressing process to control the air pressure entering the lifting cylinder.

4. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The part support fixture includes a first part support fixture and a second part support fixture. The top heights of the first part support fixture and the second part support fixture are different or the same. The first part support fixture and the second part support fixture adjust their actual top working heights through their bottom drive mechanisms.

5. The lifting mechanism for improving the effect of support reaction force as described in claim 4, characterized in that, The first part support fixture and the second part support fixture have a first sliding sleeve on the side of their housings that is slidably connected to the first smooth rod on the lifting platform.

6. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The lifting platform is equipped with different product support fixtures at different positions. Before the pressing stage, the mechanism frame and the product support fixtures support the product simultaneously.

7. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The support rod, which is disposed between the mechanism frame and the lifting platform, includes a support body and a support base. The support body is slidably connected to a second sliding sleeve disposed on the bottom surface of the lifting platform. A spring is provided between the support base and the second sliding sleeve, and the spring is sleeved on the outer periphery of the support body.

8. The lifting mechanism for improving the effect of support reaction force as described in claim 1, characterized in that, The lifting platform is equipped with a quick-change platform, which is connected to the lifting platform via a quick-turn knob. The surface of the quick-change platform is equipped with several product support fixtures.

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