Electric discharge machine head lifting device

Abstract

The utility model relates to the field of electric discharge machines, and discloses an electric discharge machine head lifting device which comprises an installation block fixedly installed on an electric discharge machine, an electric telescopic rod, an installation plate and a machine head body, and the electric telescopic rod, the installation plate and the machine head body are arranged on the installation block. The electric telescopic rod is fixedly mounted on the inner wall of the top of the mounting groove, the mounting plate is fixedly mounted at the output shaft end of the electric telescopic rod, the machine head body is fixedly mounted at the bottom of the mounting plate, and a stopping positioning mechanism used for limiting the lifting height of the machine head body is arranged on the left side of the mounting block. The left side wall of the mounting block is provided with a rectangular receding hole with the bottom being of an opening structure. The machine head has the following advantages and effects that lifting adjustment can be conveniently conducted on the height position of the machine head body, the ascending distance and the descending distance of the machine head body can be accurately controlled according to requirements, and the using effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of electric discharge machines, and particularly relates to a head lifting device for an electric discharge machine. Background Art

[0002] An electric discharge machine is a machining equipment that uses the electro-erosion effect generated by pulsed discharge between two poles immersed in the working fluid to erode conductive materials. Nowadays, electric discharge machines are widely used in the manufacturing of various metal molds and mechanical equipment. When the existing electric discharge machine is working, since the electric discharge machine itself does not have the function of lifting the head, once the height of the workpiece to be machined is lower than the working range of the electric discharge machine, it will cause the workpiece to be unable to be machined, thereby reducing the practicability of the device.

[0003] In view of the above problems, an electric discharge machine with a head lifting function disclosed in the patent with the publication number CN215846159U includes an electric discharge machine main body. One side of the top of the electric discharge machine main body is detachably installed with a switch button, and the other side of the top of the electric discharge machine main body is fixedly installed with a stabilizing plate. The front of the stabilizing plate is clamped with a mounting block. The top of the front of the mounting block is provided with a mounting chute. The top inside the mounting chute is detachably installed with a lifting rod. The bottom of the lifting rod is detachably installed with a lifting plate. The bottom of the lifting plate is detachably installed with a head body. The top of the electric discharge machine main body is fixedly installed with a working box. The electric discharge machine uses the mutual cooperation between the lifting rod and the lifting plate to ensure the adaptability of the device, avoiding the problem that since the electric discharge machine itself does not have the function of lifting the head, once the height of the workpiece to be machined is lower than the working range of the electric discharge machine, it will cause the workpiece to be unable to be machined, thereby reducing the practicability of the device.

[0004] The above related solutions are found to still have at least the following defects in actual use: Although the telescopic property of the lifting plate can be used to adjust the height position of the head body, it is not convenient to accurately control the rising distance of the head body, nor is it convenient to accurately control the descending distance of the head body. It is easy to cause the phenomenon that the head body rises too high or descends too low, and the use effect is not good. Therefore, we propose a head lifting device for an electric discharge machine to solve the above problems. Summary of the Utility Model

[0005] The purpose of this application is to provide a head lifting device for an electric discharge machine, which not only facilitates the lifting adjustment of the height position of the head body, but also can accurately control the rising distance and the descending distance of the head body according to requirements, improving the use effect.

[0006] The above technical object of the present application is achieved through the following technical solutions: A head lifting device for an electric discharge machine, comprising a mounting block fixedly installed on the electric discharge machine, an electric telescopic rod, a mounting plate, and a head body arranged on the mounting block. An installation groove with an open bottom structure is formed on the front side wall of the mounting block. The electric telescopic rod is fixedly installed on the top inner wall of the installation groove. The mounting plate is fixedly installed at the output shaft end of the electric telescopic rod. The head body is fixedly installed at the bottom of the mounting plate. A blocking and positioning mechanism for defining the lifting height of the head body is arranged on the left side of the mounting block.

[0007] By adopting the above technical solutions, taking advantage of the telescopic characteristics of the electric telescopic rod, it can be used to control the vertical lifting of the mounting plate and the head body, that is, the function of adjusting the height position of the head body can be realized. The blocking and positioning mechanism is used to block and position the lifting height of the head body, so as to accurately control the rising distance value of the head body and the falling distance value of the head body.

[0008] The further setting of the present application is: A rectangular avoidance hole with an open bottom structure is formed on the left side wall of the mounting block. The blocking and positioning mechanism includes a cross beam, a vertical rod, a fixing plate, a scale line, an upper limiting component, a lower limiting component, and a fixing component. The cross beam is fixedly installed on the outer wall of the left side of the mounting block and is located above the rectangular avoidance hole. The vertical rod is fixedly installed at the bottom of the cross beam. The fixing plate is fixedly installed on the outer wall of the left side of the mounting block and is located behind the rectangular avoidance hole. The scale line is arranged on the front side wall of the fixing plate. Both the upper limiting component and the lower limiting component are arranged on the vertical rod. The upper limiting component is used to block and position the rising height of the head body. The lower limiting component is used to block and position the falling height of the head body. The fixing component is arranged between the vertical rod and the mounting plate, and the fixing component is used to fix the upper limiting component and the lower limiting component.

[0009] By adopting the above technical solutions, the scale line is set to facilitate observing and calculating the moving distance of the upper limiting component and the lower limiting component.

[0010] The further setting of the present application is: The upper limiting component includes an upper sliding seat, an upper baffle, and an upper pointer. The upper sliding seat is slidably sleeved on the vertical rod. The upper baffle is fixedly installed on the right side wall of the upper sliding seat. The right side of the upper baffle penetrates through the rectangular avoidance hole and is located above the mounting plate. The upper pointer is fixedly installed on the left side wall of the upper sliding seat.

[0011] By adopting the above technical solutions, by using the upper pointer to point to the scale value on the scale line, the moving distance value of the upper baffle can be judged and calculated. The vertical distance dimension between the upper baffle and the mounting plate is the rising distance of the head body.

[0012] The further setting of the present application is: The left end of the upper pointer is of a conical structure, and the axis of the upper pointer and the bottom surface of the upper baffle are on the same horizontal plane.

[0013] By adopting the above technical solution, the rising distance of the machine head body can be accurately guaranteed.

[0014] A further setting of the present application is that the lower limit component includes a lower sliding seat, a lower baffle and a lower pointer. The lower sliding seat is slidably sleeved on the vertical rod and is located below the upper sliding seat. The lower baffle is fixedly installed on the right side wall of the lower sliding seat. The lower baffle is located below the mounting plate. The lower pointer is fixedly installed on the left side wall of the lower sliding seat.

[0015] By adopting the above technical solution, by using the scale value pointed to by the lower pointer on the scale line, the moving distance value of the lower baffle can be judged and calculated, and the vertical spacing dimension between the lower baffle and the mounting plate is the descending distance of the machine head body.

[0016] A further setting of the present application is that the left end of the lower pointer is of a conical structure, and the axis of the lower pointer is on the same horizontal plane as the top surface of the lower baffle.

[0017] By adopting the above technical solution, the descending distance of the machine head body can be accurately guaranteed.

[0018] A further setting of the present application is that the upper baffle and the lower baffle are set with the same shape and size. The width dimension of the upper baffle is smaller than the inner width dimension of the rectangular avoidance hole. The upper pointer and the lower pointer are set with the same shape and size.

[0019] By adopting the above technical solution, it can be ensured that the upper baffle and the lower baffle move vertically in the rectangular avoidance hole smoothly.

[0020] A further setting of the present application is that the fixing component includes a stainless steel plate, two L-shaped rods and two electromagnets. The stainless steel plate is fixedly installed on the top inner wall of the installation groove and is located behind the upper baffle. The top end of the stainless steel plate extends outside the installation groove. The two L-shaped rods are respectively fixedly installed on the top of the upper baffle and the top of the lower baffle, and both L-shaped rods are located in the installation groove. The two electromagnets are respectively fixedly installed at one end of the corresponding L-shaped rod, and both electromagnets are magnetically adsorbed and fixed on the front side wall of the stainless steel plate.

[0021] By adopting the above technical solution, by using the magnetic force generated by the energization of the electromagnet, it can be magnetically adsorbed and fixed on the stainless steel plate, and thus the positions of the upper baffle and the lower baffle can be fixed.

[0022] A further setting of the present application is that the width dimension of the mounting plate is larger than the width dimension of the upper baffle.

[0023] By adopting the above technical solution, it can be ensured that the mounting plate effectively abuts against the upper baffle or the lower baffle.

[0024] A further setting of the present application is that a stop block is fixedly installed at the bottom end of the vertical rod.

[0025] By adopting the above technical solution, it is possible to prevent the sliding seat from detaching from the vertical rod.

[0026] This application includes at least one of the following beneficial technical effects:

[0027] 1. By utilizing the telescopic property of the electric telescopic rod, this application can achieve the function of lifting and adjusting the head body.

[0028] 2. By utilizing the upper limit component composed of the upper sliding seat, upper baffle, and upper pointer, the rising height of the head body can be limited. By utilizing the lower limit component composed of the lower sliding seat, lower baffle, and lower pointer, the descending height of the head body can be limited. By utilizing the fixing component composed of a stainless steel plate, two L-shaped rods, and two electromagnets, the positions of the upper baffle and lower baffle can be fixed.

[0029] 3. By utilizing the resistance positioning mechanism composed of a cross beam, vertical rod, fixing plate, scale line, upper limit component, lower limit component, and fixing component, this application can accurately control the rising distance of the head body according to requirements and can also accurately control the descending distance of the head body according to requirements, improving the usage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a three-dimensional structural schematic diagram of the first perspective of this embodiment.

[0032] Figure 2 It is a three-dimensional structural schematic diagram of the second perspective of this embodiment.

[0033] Figure 3 It is a front view sectional structural schematic diagram of this embodiment.

[0034] Figure 4 is Figure 3 an enlarged structural schematic diagram of part A in

[0035] In the figure, 1. mounting block; 2. mounting groove; 3. electric telescopic rod; 4. mounting plate; 5. head body; 6. rectangular avoidance hole; 7. cross beam; 8. vertical rod; 9. fixing plate; 10. scale line; 11. upper sliding seat; 12. upper baffle; 13. upper pointer; 14. lower sliding seat; 15. lower baffle; 16. lower pointer; 17. stainless steel plate; 18. L-shaped rod; 19. electromagnet; 20. stop block. Detailed implementation manners

[0036] The technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0037] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the present application provides a head lifting device for an electric spark machine, which includes a mounting block 1 fixedly installed on the electric spark machine, an electric telescopic rod 3, a mounting plate 4 and a head body 5 arranged on the mounting block 1. An installation groove 2 with an open bottom structure is formed on the front side wall of the mounting block 1. The electric telescopic rod 3 is fixedly installed on the top inner wall of the installation groove 2. The mounting plate 4 is fixedly installed at the output shaft end of the electric telescopic rod 3. The head body 5 is fixedly installed at the bottom of the mounting plate 4, wherein:

[0038] A resistance positioning mechanism for limiting the lifting height of the head body 5 is arranged on the left side of the mounting block 1. A rectangular avoidance hole 6 with an open bottom structure is formed on the left side wall of the mounting block 1. The resistance positioning mechanism includes a cross beam 7, a vertical rod 8, a fixing plate 9, a scale line 10, an upper limiting component, a lower limiting component and a fixing component. The cross beam 7 is fixedly installed on the outer wall of the left side of the mounting block 1 and is located above the rectangular avoidance hole 6. The vertical rod 8 is fixedly installed at the bottom of the cross beam 7. The fixing plate 9 is fixedly installed on the outer wall of the left side of the mounting block 1 and is located behind the rectangular avoidance hole 6. The scale line 10 is arranged on the front side wall of the fixing plate 9. The upper limiting component and the lower limiting component are both arranged on the vertical rod 8. The upper limiting component is used to resist and position the rising height of the head body 5. The lower limiting component is used to resist and position the descending height of the head body 5. The fixing component is arranged between the vertical rod 8 and the mounting plate 4, and the fixing component is used to fix the upper limiting component and the lower limiting component.

[0039] In this embodiment, the above-mentioned upper limit component includes an upper sliding seat 11, an upper baffle 12 and an upper pointer 13. The upper sliding seat 11 is slidably sleeved on the vertical rod 8. The upper baffle 12 is fixedly installed on the right side wall of the upper sliding seat 11. The right side of the upper baffle 12 penetrates through the rectangular avoidance hole 6 and is located above the mounting plate 4. The upper pointer 13 is fixedly installed on the left side wall of the upper sliding seat 11. The above-mentioned lower limit component includes a lower sliding seat 14, a lower baffle 15 and a lower pointer 16. The lower sliding seat 14 is slidably sleeved on the vertical rod 8 and is located below the upper sliding seat 11. The lower baffle 15 is fixedly installed on the right side wall of the lower sliding seat 14. The lower baffle 15 is located below the mounting plate 4. The lower pointer 16 is fixedly installed on the left side wall of the lower sliding seat 14. The above-mentioned fixing component includes a stainless steel plate 17, two L-shaped rods 18 and two electromagnets 19. The stainless steel plate 17 is fixedly installed on the top inner wall of the installation groove 2 and is located behind the upper baffle 12. The top end of the stainless steel plate 17 extends outside the installation groove 2. The two L-shaped rods 18 are respectively fixedly installed on the top of the upper baffle 12 and the top of the lower baffle 15, and both L-shaped rods 18 are located in the installation groove 2. The two electromagnets 19 are respectively fixedly installed at one end of the corresponding L-shaped rod 18. The two electromagnets 19 are both magnetically adsorbed and fixed on the front side wall of the stainless steel plate 17.

[0040] In this embodiment, the left end of the upper pointer 13 is of a conical structure, and the axis of the upper pointer 13 is on the same horizontal plane as the bottom surface of the upper baffle 12.

[0041] In this embodiment, the left end of the lower pointer 16 is of a conical structure, and the axis of the lower pointer 16 is on the same horizontal plane as the top surface of the lower baffle 15.

[0042] In this embodiment, the upper baffle 12 and the lower baffle 15 are set with the same shape and size. The width dimension of the upper baffle 12 is smaller than the inner width dimension of the rectangular avoidance hole 6. The upper pointer 13 and the lower pointer 16 are set with the same shape and size.

[0043] In this embodiment, the width dimension of the mounting plate 4 is larger than the width dimension of the upper baffle 12.

[0044] In this embodiment, a stop block 20 is fixedly installed at the bottom end of the vertical rod 8.

[0045] In this embodiment, it should be added that the electric telescopic rod 3 and the two electromagnets 19 can both be purchased in the market or customized in the factory. The electric telescopic rod 3 and the two electromagnets 19 are configured with power supplies. The wiring connection and control methods of the electric telescopic rod 3 and the two electromagnets 19 belong to the mature technologies in this field, so they will not be elaborated in this article.

[0046] With the above structure, when the head lifting device provided by the present application is in use, it is not only convenient to adjust the height position of the head body 5, but also can accurately control the rising distance and the falling distance of the head body 5 according to requirements, improving the use effect. During specific operation, when adjusting the head body 5 to rise, when it is necessary to control the distance required for the head body 5 to rise (that is, the distance required for the head body 5 to rise from the existing height position), first control the electromagnet 19 above the upper baffle 12 to be powered off. At this time, the magnetic force disappears, and the fixation of the upper baffle 12 can be released. Push the upper baffle 12 to slide downward. The upper baffle 12 drives the upper sliding seat 11 and the upper pointer 13 to slide downward. When the upper baffle 12 slides down to contact the mounting plate 4, observe and remember the scale value on the scale line 10 pointed by the upper pointer 13 at this time (denoted as height one). Then push the upper baffle 12 to slide upward. The upper baffle 12 drives the upper sliding seat 11 and the upper pointer 13 to slide upward. When the difference obtained by subtracting height one from the scale value on the scale line 10 pointed by the upper pointer 13 is the distance value required for the head body 5 to rise, stop pushing the upper baffle 12 upward, and turn on the electromagnet 19 above the upper baffle 12 to generate magnetic force, so that it can be magnetically adsorbed and fixed on the stainless steel plate 17, that is, fix the upper baffle 12 with adjusted position. Then control the electric telescopic rod 3 to contract and reset, and the mounting plate 4 and the head body 5 can be controlled to rise. When the mounting plate 4 rises to contact the upper baffle 12, the upper baffle 12 will block the mounting plate 4 from rising, and stop the electric telescopic rod 3 from running, that is, the head body 5 is accurately raised to the required distance;

[0047] When adjusting the head body 5 to fall, when it is necessary to control the distance required for the head body 5 to fall (that is, the distance required for the head body 5 to lower from the existing height position), first control the electromagnet 19 above the lower baffle 15 to be powered off. At this time, the magnetic force disappears, and the fixation of the lower baffle 15 can be released. Push the lower baffle 15 to slide upward. The lower baffle 15 drives the lower sliding seat 14 and the lower pointer 16 to slide upward. When the lower baffle 15 slides up to contact the mounting plate 4, observe and remember the scale value on the scale line 10 pointed by the lower pointer 16 at this time (denoted as height two). Then push the lower baffle 15 to slide downward. The lower baffle 15 drives the lower sliding seat 14 and the lower pointer 16 to slide downward. When the difference obtained by subtracting the scale value on the scale line 10 pointed by the lower pointer 16 from height two is the distance value required for the head body 5 to fall, stop pushing the lower baffle 15 upward, and turn on the electromagnet 19 above the lower baffle 15 to generate magnetic force, so that it can be magnetically adsorbed and fixed on the stainless steel plate 17, that is, fix the lower baffle 15 with adjusted position. Then control the electric telescopic rod 3 to extend and run, and the mounting plate 4 and the head body 5 can be controlled to fall. When the mounting plate 4 rises to contact the lower baffle 15, the lower baffle 15 will block the mounting plate 4 from falling, and stop the electric telescopic rod 3 from running, that is, the head body 5 is accurately lowered to the required distance.

[0048] The above has introduced in detail a head lifting device for an electric discharge machine provided by the present application. Specific embodiments are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An electric spark machine head lifting device, characterized in that: The invention comprises a mounting block (1) fixedly mounted on the spark ignition machine, and an electric telescopic rod (3), a mounting plate (4) and a machine head body (5) arranged on the mounting block (1); a mounting groove (2) with an open bottom is provided on the front side wall of the mounting block (1); the electric telescopic rod (3) is fixedly mounted on the top inner wall of the mounting groove (2); the mounting plate (4) is fixedly mounted on the output shaft end of the electric telescopic rod (3); the machine head body (5) is fixedly mounted on the bottom of the mounting plate (4); and a resisting positioning mechanism for limiting the lifting height of the machine head body (5) is provided on the left side of the mounting block (1).

2. The EDM machine head lifting device according to claim 1, characterized in that: A rectangular avoidance hole (6) with an open bottom is provided on the left side wall of the mounting block (1); the blocking positioning mechanism comprises a crossbeam (7), a vertical rod (8), a fixing plate (9), a scale line (10), an upper limiting assembly, a lower limiting assembly and a fixing assembly; the crossbeam (7) is fixedly mounted on the left side outer wall of the mounting block (1) and is located above the rectangular avoidance hole (6); the vertical rod (8) is fixedly mounted on the bottom of the crossbeam (7); the fixing plate (9) is fixedly mounted on the left side outer wall of the mounting block (1); The scale line (10) is arranged on the front side wall of the fixing plate (9), the upper limiting assembly and the lower limiting assembly are both arranged on the vertical rod (8), the upper limiting assembly is used to resist the rising height of the positioning head body (5), the lower limiting assembly is used to resist the falling height of the positioning head body (5), the fixing assembly is arranged between the vertical rod (8) and the mounting plate (4), and the fixing assembly is used to fix the upper limiting assembly and the lower limiting assembly.

3. The EDM machine head lifting device according to claim 2, characterized in that: The upper limiting assembly comprises an upper slide (11), an upper baffle (12) and an upper pointer (13); the upper slide (11) is slidably mounted on the vertical rod (8); the upper baffle (12) is fixedly mounted on the right side wall of the upper slide (11); the right side of the upper baffle (12) passes through the rectangular avoidance hole (6) and is located above the mounting plate (4); and the upper pointer (13) is fixedly mounted on the left side wall of the upper slide (11).

4. The EDM machine head lifting device according to claim 3, characterized in that: The left end of the upper pointer (13) is of a conical structure, and the axis of the upper pointer (13) and the bottom surface of the upper baffle (12) are located on the same horizontal plane.

5. The EDM machine head lifting device according to claim 4, characterized in that: The lower limiting assembly comprises a lower sliding seat (14), a lower baffle (15) and a lower pointer (16); the lower sliding seat (14) is slidably mounted on the vertical rod (8) and is located below the upper sliding seat (11); the lower baffle (15) is fixedly mounted on the right side wall of the lower sliding seat (14); the lower baffle (15) is located below the mounting plate (4); and the lower pointer (16) is fixedly mounted on the left side wall of the lower sliding seat (14).

6. The EDM machine head lifting device according to claim 5, characterized in that: The left end of the lower pointer (16) is of a conical structure, and the axis of the lower pointer (16) and the top surface of the lower baffle (15) are located on the same horizontal plane.

7. The EDM machine head lifting device according to claim 6, characterized in that: The upper baffle (12) and the lower baffle (15) are arranged in the same shape and size, the width of the upper baffle (12) is smaller than the inner width of the rectangular avoidance hole (6), and the upper pointer (13) and the lower pointer (16) are arranged in the same shape and size.

8. The EDM machine head lifting device according to claim 7, characterized in that: The fixing assembly comprises a stainless steel plate (17), two L-shaped rods (18) and two electromagnets (19); the stainless steel plate (17) is fixedly mounted on the top inner wall of the mounting groove (2) and is located behind the upper baffle (12); the top end of the stainless steel plate (17) extends outside the mounting groove (2); the two L-shaped rods (18) are respectively fixedly mounted on the top of the upper baffle (12) and the top of the lower baffle (15); and both L-shaped rods (18) are located in the mounting groove (2); the two electromagnets (19) are respectively fixedly mounted on one end of the corresponding L-shaped rod (18); and the two electromagnets (19) are both fixedly mounted on the front side wall of the stainless steel plate (17) by magnetic adsorption.

9. The EDM machine head lifting device according to claim 8, characterized in that: The width dimension of the mounting plate (4) is greater than the width dimension of the upper baffle plate (12).

10. The EDM machine head lifting device according to claim 2, characterized in that: A stopper (20) is fixedly mounted on the bottom end of the vertical rod (8).

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