Lifting oil groove of electric spark forming machine tool

Abstract

The utility model discloses an electric spark forming machine tool lifting oil groove which comprises an oil groove cavity, an oil groove outer lifting body is arranged on the periphery of the oil groove cavity, the oil groove outer lifting body is located between a front trim panel and an oil groove outer body, and a plurality of chain lifting mechanisms are arranged at the bottom of the oil groove outer lifting body. The chain lifting mechanism comprises two groups of chains, a first driving assembly, a second driving assembly and a guide assembly, the chains are rigid structural parts, a guide rail is arranged on the oil groove outer body, and the chains are partially arranged in the guide rail and located below the oil groove outer lifting body. The chain lifting mechanism comprises at least two groups of chain lifting mechanisms, the chain lifting mechanisms are arranged at the bottom of the electric spark forming machine tool and located below the oil groove, and the oil groove is lifted through the rigid chain lifting mechanisms. A chain of the chain lifting mechanism can freely stretch out and draw back in the guide assembly, the occupied space is small, and installation and maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spark forming machine tools, in particular to a lifting oil tank of an electric spark forming machine tool. Background Art

[0002] An EDM machine is a machine tool that uses electric spark discharge to electro-etch metal surfaces to machine metal parts. It consists of a bed, column, spindle head, and worktable. The worktable is equipped with an oil tank to contain the oil, which keeps the electrode and workpiece immersed in the oil for cooling and chip removal.

[0003] Due to the influence of the existing EDM machine tools' own structure, the oil tank is often fixed, resulting in the oil level not being able to automatically rise and fall with the position of the EDM, resulting in a long EDM discharge time and low safety and production efficiency of EDM. Based on this, a number of EDM forming machines with liftable oil tanks have appeared on the consumer market. For example, an EDM machine lifting oil tank with publication number CN217513012U includes a bed lifting oil tank body, an oil tank lifting ball screw, an oil tank lifting motor sprocket, an oil tank lifting tensioning sprocket, and a workbench support column. A workbench support column is arranged in the middle of the machine tool lifting oil tank body, and an oil tank lifting ball screw is arranged in an array on the side of the workbench support column. An oil tank lifting motor sprocket is arranged on the side of one end of the oil tank lifting ball screw, and an oil tank lifting tensioning sprocket is arranged on the side of the other end of the oil tank lifting ball screw...It can be concluded from its specification and drawings that the oil tank is ultimately upgraded through the cooperation of the lifting ball screw and the screw nut. Due to the distance limit from the ground to the workbench surface, the space at the bottom of the oil tank is limited. When assembling the above-mentioned lifting mechanism, due to space limitations, the installation is cumbersome, and the above-mentioned lifting mechanism occupies a large space and is difficult to maintain. Utility Model Content

[0004] In response to the problems of traditional lifting mechanisms such as difficulty in installation, many components, and difficulty in maintenance, the utility model provides an oil tank lifting mechanism with a simple structure, easy installation, and small space occupation, which is used to control the upgrade of the lifting body outside the oil tank, thereby changing the volume of the oil tank cavity.

[0005] To achieve the above purpose, the present invention proposes:

[0006] A lifting oil tank for an electrospark forming machine tool comprises an oil tank cavity, an outer oil tank lifting body is arranged on the outer periphery of the oil tank cavity, the outer oil tank lifting body is located between the front trim panel and the outer oil tank body, and several groups of chain lifting mechanisms are arranged at the bottom of the outer oil tank lifting body, the chain lifting mechanisms include two groups of chains, a first drive assembly, a second drive assembly, and a guide assembly, the chain is a rigid structural member, a guide rail is arranged on the outer oil tank body, and the chain portion is arranged in the guide rail and is located below the outer oil tank lifting body.

[0007] Preferably, one group of chains is connected to the output end of the first drive assembly, and the other group of chains is connected to the output end of the second drive assembly. One ends of the two groups of chains are connected by a connector, and the other ends are both located in the guide assembly.

[0008] Preferably, the first driving assembly includes a driver, a first sprocket, and a first gear, one end of the first sprocket is connected to the driver, and the other end is connected to the first gear, and the first sprocket is engaged with the chain.

[0009] Preferably, the second drive assembly includes a second sprocket and a second gear, the second sprocket is connected to the second gear, the second gear is meshed with the first gear, and the second sprocket is meshed with the chain.

[0010] Preferably, the guide assembly includes several guide blocks, namely a first guide block, a second guide block, a third guide block, and a fourth guide block respectively arranged on both sides of the first guide block. A movable channel is formed between the first guide block and the second guide blocks, the third guide block, and the fourth guide blocks on both sides of the first guide block, and the chain part is located in the movable channel.

[0011] Preferably, a placement cavity is formed between the first guide block and the second guide block, the placement cavity is communicated with the movable channel, and the first sprocket and the second sprocket are located in the placement cavity.

[0012] Preferably, a plurality of notches are provided on both sides of the top of the first guide block, and an inlet and outlet are formed between the first guide block and the second guide block. The inlet and outlet are communicated with the placement cavity, and the inlet and outlet are adapted to the chain.

[0013] Preferably, the guide assembly further comprises a plurality of connecting plates, which are arranged outside the guide block and used for connecting the guide block, and the driver is fixed on a connecting plate.

[0014] Preferably, bearings are provided between the first sprocket, the second sprocket and the connecting plate.

[0015] According to some embodiments of the present invention, two groups of chain lifting mechanisms are provided, and the structures of the two groups of chain lifting mechanisms are completely identical.

[0016] According to other embodiments of the present invention, two groups of chain lifting mechanisms are provided, one group of chain lifting mechanisms is not provided with a driver, and the two groups of chain lifting mechanisms are connected via a transmission shaft and a coupling.

[0017] Beneficial effects of the utility model:

[0018] This utility model provides a chain lift mechanism comprising at least two groups. These mechanisms are located at the bottom of the EDM machine, below the oil tank. The rigid chain lift mechanism allows for the oil tank to be raised and lowered. The chain of the chain lift mechanism is freely retractable within the guide assembly, taking up minimal space and facilitating installation and maintenance.

[0019] The features and advantages of the present invention will be described in detail through the embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of the electric spark forming machine tool of the utility model;

[0021] Figure 2 This is an exploded view of the electric spark forming machine tool of the utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a three-dimensional diagram of the chain lifting mechanism of the utility model;

[0024] Figure 5 This is an exploded view of the chain lifting mechanism of the utility model;

[0025] Figure 6 This is a cross-sectional view of the chain lifting mechanism of the utility model;

[0026] Figure 7 This is a three-dimensional diagram of the chain lifting mechanism of the utility model without the chain;

[0027] Figure 8 It is a three-dimensional diagram of another embodiment of the chain lifting mechanism of the present utility model.

[0028] In the figure: 1. Chain; 2. First drive assembly, 21. Driver, 22. First sprocket, 23. First gear; 3. Second drive assembly, 31. Second sprocket, 32. Second gear; 4. Guide assembly, 41. First guide block, 42. Second guide block, 43. Third guide block, 44. Fourth guide block, 45. Movable channel, 46. Housing cavity, 47. Inlet and outlet, 48. Connecting plate; 5. Connecting piece; 6. Bearing; 7. Drive shaft; 8. Coupling; 100. Chain lifting mechanism; 200. Oil tank cavity; 300. Oil tank outer lifting body; 400. Front trim panel; 500. Oil tank outer body; 600. Guide rail. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0031] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this invention belongs. The use of "a," "an," and similar terms in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. "A plurality" includes two and is equivalent to at least two. "Includes" or "comprising" and similar terms mean that the elements or objects preceding "includes" or "comprising" include the elements or objects listed after "includes" or "comprising," and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar terms are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0032] Example 1:

[0033] Please refer to Figure 1-7, an oil tank lifting oil tank of an electrospark forming machine tool includes an oil tank cavity 200, an oil tank outer lifting body 300 is arranged on the outer periphery of the oil tank cavity 200, the oil tank outer lifting body 300 is located between the front trim panel 400 and the oil tank outer body 500, and a space for lifting the oil tank outer lifting body 300 is formed between the front trim panel 400 and the oil tank outer body 500, and two groups of chain lifting mechanisms 100 are arranged at the bottom of the oil tank outer lifting body 300, the chain lifting mechanism includes two groups of chains 1, a first drive assembly 2, a second drive assembly 3, and a guide assembly 4, the chain 1 is a rigid structural member, and a guide rail 600 is provided on the oil tank outer body 500, and the chain 1 is partially arranged in the guide rail 600 and is located below the oil tank outer lifting body 300, and the chain 1 in the chain lifting mechanism 100 is lifted to drive the oil tank outer lifting body 300 to move, thereby realizing the lifting of the oil tank outer lifting body 300, thereby changing the volume of the oil tank cavity 200.

[0034] The chain 1 is composed of multiple outer links and multiple inner links, which are connected end-to-end to the multiple inner links. Specifically, the ends of the outer links are connected to the inner links, and the ends of the inner links are connected to the outer links, with the exception of the outer and inner links at the outer and inner ends. Chain 1 is a rigid structural member made of a rigid material such as metal. Preferably, chain 1 (the outer and inner links) is made of steel, which increases the strength of chain 1 and also increases the external force applied to the oil tank outer lift 300.

[0035] Specifically, the chain lifting mechanism 100 includes two groups of symmetrically arranged chains 1, a first drive assembly 2, a second drive assembly 3, and a guide assembly 4, wherein one group of chains 1 is connected to the output end of the first drive assembly 2, and the other group of chains 1 is connected to the output end of the second drive assembly 3. One end of the two groups of chains 1 is connected by a connector 5, and the connector 5 is fixed to the top of the two chains 1 by a fastener, and the connector 5 contacts the lower surface of the lifting body 300 outside the oil tank, and the other end parts of the two groups of chains 1 are both located in the guide assembly 4.

[0036] When the first driving assembly 2 is in operation, it drives the second driving assembly 3 to operate together. The first driving assembly 2 and the second driving assembly 3 drive the two sets of chains 1 to move synchronously, thereby driving the connecting member 5 to move up and down, thereby driving the lifting body 300 outside the oil tank to move up and down.

[0037] When the chain lifting mechanism 100 is retracted, most of the chain 1 is hidden in the guide assembly 4, occupying a small space.

[0038] Furthermore, the first drive assembly 2 includes a driver 21, a first sprocket 22, and a first gear 23. One end of the first sprocket 22 is connected to the driver 21, and the other end is connected to the first gear 23. The first sprocket 22 is meshed with the chain 1. The second drive assembly 3 includes a second sprocket 31 and a second gear 32. The second sprocket 31 is connected to the second gear 32. The second gear 32 is meshed with the first gear 23. The second sprocket 31 is meshed with the chain 1.

[0039] The driver 21 is composed of a servo motor and a reducer. Since the first sprocket 22 is engaged with the chain 1, the first gear 23 is engaged with the second gear 32, and the second sprocket 31 is engaged with the chain 1, when the driver 21 is powered on and the output shaft rotates, it will drive the first sprocket 22 and the first gear 23, the second sprocket 31, and the second gear 32 to rotate together, thereby driving the two sets of chains 1 to move synchronously and drive the connecting member 5 to rise and fall, thereby raising and lowering the lifting body 300 outside the oil tank.

[0040] In this embodiment, the drivers 21 of the two sets of chain lifting mechanisms 100 realize the synchronous extension and retraction of the chains 1 of the two sets of chain lifting mechanisms 100 through a synchronous controller (system), so that the two sets of chain lifting mechanisms 100 at the bottom of the lifting body 300 outside the oil tank can be lifted and lowered at the same time, ensuring the balance and stability of the lifting of the lifting body 300 outside the oil tank.

[0041] Furthermore, the guide assembly 4 includes nine guide blocks, namely a first guide block 41, two second guide blocks 42, two third guide blocks 43, and two fourth guide blocks 44. The first guide block 41 is located in the middle, the second guide blocks 42 are located on both sides of the first guide block 41, the third guide blocks 43 are located on both sides of the first guide block 41, and the fourth guide blocks 44 are located on both sides of the first guide block 41. The fourth guide block 44 is located in the middle of the first guide block 41, the second guide block 42, and the third guide block 43. The first guide block 41 and the second guide blocks 42, the third guide blocks 43, and the fourth guide blocks 44 on both sides thereof form two movable channels 45. The chain 1 is partially located in the movable channels 45, that is, the movable channels 45 serve as the movement track of the chain 1. A placement cavity 46 is formed between the first guide block 41 and the second guide block 42. The placement cavity 46 is connected to the movable channel 45, and the first sprocket 22 and the second sprocket 31 are located in the placement cavity 46. A plurality of notches are provided on both sides of the top of the first guide block 41 . An inlet and outlet 47 is formed between the first guide block 41 and the second guide block 42 . The inlet and outlet 47 is communicated with the placement cavity 46 and is adapted to the chain 1 .

[0042] When the driver 21 is powered on, it drives the chain 1 to move in the movable channel 45 and to extend and retract in the inlet and outlet 47 , thereby driving the connecting member 5 to move up and down, and finally causing the lifting body 300 outside the oil tank to move up and down.

[0043] Among them, the first guide block 41 is a L-shaped structure, the second guide block 42 is a ┐-shaped structure, and the third guide block 43 is a U-shaped structure.

[0044] The guide assembly 4 also includes ten connecting plates 48, wherein two connecting plates 48 are grouped together and arranged on the upper and lower sides of the guide block, and three connecting plates 48 are grouped together and arranged on the front and rear sides of the guide block. The connecting plates 48 can be fixed on the outside of the guide block by a welding process, and are used to connect the guide block to hide the movable channel 45. The driver 21 is fixed to a connecting plate 48 by fasteners.

[0045] A through hole is required to be provided on the connecting plate 48 for mounting the first sprocket 22 and the second sprocket 31 , and a bearing 6 is provided between the first sprocket 22 , the second sprocket 31 and the connecting plate 48 .

[0046] Example 2:

[0047] Please refer to Figure 8 This embodiment is otherwise identical to the first embodiment, differing in that one set of chain lifting mechanisms 100 lacks a driver 21, while the reducer for the driver 21 of the other set of chain lifting mechanisms 100 is equipped with a double-ended output shaft. The two sets of chain lifting mechanisms 100 are connected by a mechanical structure, with one end of the mechanical structure connected to the sprocket of one set of chain lifting mechanisms 100 and the other end connected to the output shaft of the reducer. When the driver 21 of one set is in operation, the mechanical structure drives the other set of chain lifting mechanisms 100 to operate, thereby achieving synchronous extension and retraction of the chains 1 of the two sets of chain lifting mechanisms 100.

[0048] In this embodiment, the mechanical structure is a transmission shaft 7 and a coupling 8, that is, one end of the transmission shaft 7 is connected to a sprocket of a chain lifting mechanism 100 through the coupling 8, and the other end is connected to the output shaft of the reducer through the coupling 8.

[0049] In other feasible embodiments, the number of chain lifting mechanisms 100 may be greater than two groups, and may be set according to actual production.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A lifting oil tank for an electrospark forming machine tool, comprising an oil tank cavity, an oil tank outer lifting body provided on the outer periphery of the oil tank cavity, the oil tank outer lifting body being located between a front fascia and the oil tank outer body, characterized in that: Several groups of chain lifting mechanisms are provided at the bottom of the lifting body outside the oil tank. The chain lifting mechanisms include two groups of chains, a first drive assembly, a second drive assembly, and a guide assembly. The chains are rigid structural parts. A guide rail is provided on the outer body of the oil tank. The chain part is provided in the guide rail and is located below the lifting body outside the oil tank.

2. The lifting oil tank of the electric spark forming machine according to claim 1, characterized in that: One set of chains is connected to the output end of the first drive assembly, and the other set of chains is connected to the output end of the second drive assembly. One end of the two sets of chains is connected by a connector, and the other ends are both located in the guide assembly.

3. The lifting oil tank of the electric spark forming machine tool according to claim 2, characterized in that: The first driving assembly includes a driver, a first sprocket, and a first gear. One end of the first sprocket is connected to the driver, and the other end is connected to the first gear. The first sprocket is meshed with a chain.

4. The lifting oil tank of the electric spark forming machine according to claim 3, characterized in that: The second drive assembly includes a second sprocket and a second gear, the second sprocket is coupled to the second gear, the second gear is meshed with the first gear, and the second sprocket is meshed with the chain.

5. The lifting oil tank of the electric spark forming machine tool according to claim 4, characterized in that: The guide assembly includes several guide blocks, namely a first guide block, a second guide block, a third guide block, and a fourth guide block arranged on both sides of the first guide block. The first guide block and the second guide blocks, the third guide block, and the fourth guide blocks on both sides of the first guide block form a movable channel, and the chain part is located in the movable channel.

6. The lifting oil tank of the electric spark forming machine tool according to claim 5, characterized in that: A placement cavity is formed between the first guide block and the second guide block. The placement cavity is communicated with the movable channel. The first sprocket and the second sprocket are located in the placement cavity.

7. The lifting oil tank of the EDM machine tool according to claim 6, characterized in that: A plurality of notches are provided on both sides of the top of the first guide block. An inlet and outlet are formed between the first guide block and the second guide block. The inlet and outlet are communicated with the placement cavity and are adapted to the chain.

8. The lifting oil tank of the electric spark forming machine according to claim 4, characterized in that: The guide assembly further comprises a plurality of connecting plates, which are arranged outside the guide block and used for connecting the guide block. The driver is fixed on a connecting plate.

9. The lifting oil tank of the electric spark forming machine according to claim 4, characterized in that: Bearings are further provided between the first sprocket, the second sprocket and the connecting plate.

10. The lifting oil tank of the electric spark forming machine according to claim 1, characterized in that: The chain lifting mechanism is provided with two groups, and the two groups of chain lifting mechanisms are connected through a mechanical structure.

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