A nut pressing device and process method suitable for industrial production lines

Abstract

This invention discloses a nut pressing device and process method suitable for industrial production lines. The device includes a base plate, a housing, a nut clip assembly, a drive assembly, a product positioning support assembly, and a control switch. The nut clip assembly includes a nut clip and a clip support assembly. The drive assembly is a servo electric cylinder drive mechanism that provides the driving force required for pressing the nut. The product positioning support assembly is used to fix the top cover product to complete the nut pressing operation. The control switch is located on the base plate and is used to control the nut pressing operation. Compared with the traditional cylinder structure, the servo electric cylinder of this invention can achieve precise position control and precise thrust control; it can adjust the nut pressing stroke distance at various points in real time, better adjust the product dimensions related to the nut; and it can monitor the thrust applied during nut pressing in real time. This nut pressing device improves production efficiency, has a high degree of automation, reduces labor costs, and ensures operational quality.

Description

Technical Field

[0001] This invention belongs to the field of manufacturing high-performance three-phase DC filter components for new energy vehicle motor systems. Specifically, it relates to a nut pressing device and process method suitable for industrial production lines, realizing the nut pressing process for filter cover components. Background Technology

[0002] The production process of high-performance three-phase DC filter components used in new energy vehicle motor systems requires the application of a post-pressing nut on the top cover to facilitate subsequent assembly. Currently, there is no suitable post-pressing nut equipment available on the market for this product, necessitating the design of specialized non-standard machines. The current post-pressing operation for this product is primarily manual, using simple manual nut-pressing equipment, resulting in low production efficiency, low automation, high labor costs, and unreliable operational quality.

[0003] The filter assembly of this invention has three locations on its top cover that require pressing nuts. Existing manual nut-pressing devices are all one-piece presses, which cannot fine-tune the pressing stroke at each nut. In addition, manual nut-pressing devices are only cylinder-driven, which cannot monitor and precisely control the push rod's thrust, affecting product quality.

[0004] Therefore, there is an urgent need to design a nut pressing device suitable for industrial production lines to solve the problems existing in the current process. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a nut pressing device and process for industrial production lines, solving technical issues such as low production efficiency, low automation, high labor costs, and inability to guarantee product quality in existing processes.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] This invention proposes a nut pressing device suitable for industrial production lines, comprising a base plate, a housing, a nut clip assembly, a drive assembly, a product positioning support assembly, and a control switch. The nut clip assembly includes a nut clip and a clip support assembly for carrying the nut to be pressed in. The drive assembly is a servo electric cylinder drive mechanism for providing the driving force required for pressing in the nut. The product positioning support assembly is used to fix the upper cover product to complete the nut pressing operation. The control switch is located on the base plate for controlling the nut pressing operation.

[0008] Furthermore, the nut clip includes a vertical plate with three grooves, each groove having a corresponding cover plate. The grooves between the vertical plate and the cover plates form a bearing cavity for the nut, and the dimensions of the grooves correspond to the dimensions of the nut.

[0009] Furthermore, the cover plate is provided with an inclined chamfer that matches the shape of the nut, which serves to prevent errors when loading the nut.

[0010] Furthermore, the magazine support assembly includes a support column, a support base plate, a support side plate, and a support rib. The support column is disposed on the base plate, the support base plate is disposed on the top of the support column, and the support side plate is connected and fixed to the support base plate through the support rib. The nut magazine is disposed on the support side plate and is clamped and positioned by a side positioning clamp disposed on the support side plate.

[0011] Furthermore, the drive assembly includes a servo electric cylinder, a pressure sensor, push rods, and a push rod connecting plate. The telescopic shaft of the servo electric cylinder is connected to one end of the pressure sensor, and the other end of the pressure sensor is connected to the push rod connecting plate. The three push rods are adjustablely mounted on the push rod connecting plate. The position of the push rods corresponds to the falling position of the nut in the nut clip, and the length of the push rods is set according to the nut installation position on the top cover product.

[0012] Furthermore, a slider rail assembly is provided below the push rod connecting plate to enable the push rod connecting plate to slide. The slider rail assembly is set on the second base plate, which is supported and positioned by a support frame. The support frame is set on the base plate. The push rod is provided with a long slot, and the position of the push rod on the push rod connecting plate is adjusted through the long slot, thereby adjusting the stroke distance of the nut press-down stroke.

[0013] Furthermore, positioning frame plates are respectively provided at both ends of the second base plate. The servo electric cylinder is set on the positioning frame plate on one side, and a rear pressure base plate and a rear pressure limit plate are connected on the positioning frame plate on the other side. The rear pressure base plate and the rear pressure limit plate form a rear pressure channel for the push rod to push the nut. The rear pressure limit plate is provided with a through hole for the nut in the nut clip to fall and a through hole for the top cover product to pass through.

[0014] Furthermore, the product positioning support assembly includes an ejector cylinder, an ejector base plate assembly, and an upper positioning assembly. The telescopic rod of the ejector cylinder is connected to the ejector base plate assembly. A contour positioning fixture corresponding to the bottom of the upper cover product is provided on the ejector base plate assembly to achieve product positioning. The upper positioning assembly is used to limit the upper end of the upper cover product. The upper positioning assembly is set on the rear pressure limiting plate to reinforce and limit the upper end of the upper cover product to buffer the thrust of the nut pressing backward.

[0015] Furthermore, a safety light curtain is installed at the front end of the product positioning support component. The safety light curtain is positioned on the outer shell and plays a protective role. A nut positioning sensing mechanism is also installed at the corresponding position of the nut falling on the rear pressure plate.

[0016] The present invention also proposes a process method for the above-mentioned nut pressing device suitable for industrial production lines, comprising the following steps:

[0017] S1: Insert the nut into the nut clip, then position the nut clip on the support side plate and clamp it using the side positioning clip on the support side plate;

[0018] S2: The nut is transported by the nut clip, the nut enters the predetermined hole, and the nut positioning sensing mechanism senses that the nut has been positioned.

[0019] S3: Place the top cover product into the contour positioning fixture for positioning, and then the ejector cylinder works to raise the top cover product to the predetermined pressing position;

[0020] S4: Press the two control switch buttons on the base plate with both hands at the same time to start the device. The push rod moves forward under the action of the servo electric cylinder to press the nut back.

[0021] S5: After the nut is pressed in, the push rod retracts to the initial position, the new nut falls from the nut clip into the predetermined position, and at the same time the ejector cylinder works to lower the top cover product to the initial position, remove the completed product, and replace it with a new product to be processed.

[0022] S6: After the nuts in the nut magazine are used up, replace them with new nut magazines and repeat the above process.

[0023] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0024] (1) Compared with the traditional cylinder structure, the servo electric cylinder can achieve precise position control and precise thrust control.

[0025] (2) The back pressure stroke distance of the nut can be adjusted in real time, so as to better adjust the product dimensions related to the nut.

[0026] (3) The thrust applied when pressing the nut can be monitored in real time.

[0027] It is evident that the nut pressing device of this invention improves production efficiency, has a high degree of automation, reduces labor costs, and ensures operational quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the nut pressing device of the present invention;

[0029] Figure 2 This is a detailed structural diagram of the nut pressing device of the present invention (outer shell omitted).

[0030] Figure 3 Figure 1 shows a detailed structural diagram of the nut pressing device of the present invention.

[0031] Figure 4 Figure 2 shows a detailed structural diagram of the nut pressing device of the present invention.

[0032] Figure 5 Figure 3 shows a detailed view of the nut pressing device of the present invention.

[0033] Figure 6 Figure 4 shows a detailed structural diagram of the nut pressing device of the present invention.

[0034] Figure 7 This is a schematic diagram of the upper cover product structure of the present invention;

[0035] Figure 8 This is a schematic diagram of the rear pressure limiting plate structure of the present invention;

[0036] Figure 9 Figure 5 shows a detailed view of the nut pressing device of the present invention.

[0037] Figure 10 Figure 6 shows a detailed structural diagram of the nut pressing device of the present invention.

[0038] Figure 11 This is a schematic diagram of the rear-pressing nut structure of the present invention;

[0039] In the diagram: 1. Base plate; 2. Outer shell; 3. Nut clip; 301. Vertical plate; 302. Cover plate; 303. Inclined chamfer; 304. Handle; 4. Clip support assembly; 401. Support column; 402. Support base plate; 403. Support side plate; 404. Support rib; 405. Side positioning clip; 5. Top cover; 6. Drive assembly; 601. Servo electric cylinder; 602. Pressure sensor; 603. Push rod; 604. 605. Push rod connecting plate; 606. Slider rail assembly; 607. Second base plate; 608. Support frame; 609. Positioning frame plate; 6000. Long slot hole; 700. Product positioning support assembly; 701. Ejection cylinder; 702. Ejection base plate assembly; 703. Upper positioning assembly; 704. Contouring positioning fixture; 8. Rear pressure base plate; 9. Rear pressure limit plate; 10. Safety light curtain; 11. Nut positioning sensing mechanism; 12. Control switch. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0041] like Figures 1-2As shown, a nut pressing device suitable for industrial production lines includes a base plate 1, a housing 2, a nut clip assembly, a drive assembly 6, a product positioning support assembly 7, and a control switch 12. The nut clip assembly includes a nut clip 3 and a clip support assembly 4 for carrying the nut to be pressed in. The drive assembly 6 is a servo electric cylinder drive mechanism for providing the driving force required for pressing in the nut. The product positioning support assembly 7 is used to fix the upper cover product 5 to complete the nut pressing operation. The control switch 12 is set on the base plate 1 for controlling the nut pressing operation.

[0042] like Figure 4 As shown, the nut clip 3 includes a vertical plate 301 with three grooves, each groove having a corresponding cover plate 302. The grooves between the vertical plate 301 and the cover plates 302 form a bearing cavity for the nut, and the dimensions of the grooves correspond to the dimensions of the nut. The nut clip 3 also has a handle 304 for easy handling.

[0043] The cover plate 302 is provided with an inclined chamfer 303 that matches the shape of the nut, which serves to prevent errors when loading the nut.

[0044] like Figure 2 As shown, the magazine support assembly 4 includes a support column 401, a support base plate 402, a support side plate 403, and a support rib 404. The support column 401 is disposed on the base plate 1, the support base plate 402 is disposed on the top of the support column 401, and the support side plate 403 is connected and fixed to the support base plate 402 through the support rib 404. The nut magazine 3 is disposed on the support side plate 403 and is clamped and positioned by a side positioning clamp 405 disposed on the support side plate 403.

[0045] like Figures 5-10 As shown, the drive assembly 6 includes a servo electric cylinder 601, a pressure sensor 602, a push rod 603, and a push rod connecting plate 604. The telescopic shaft of the servo electric cylinder 601 is connected to one end of the pressure sensor 602, and the other end of the pressure sensor 602 is connected to the push rod connecting plate 604. The three push rods 603 are adjustablely arranged on the push rod connecting plate 604. The position of the push rod 603 corresponds to the falling position of the nut in the nut clip 3. The length of the push rod 603 is set according to the nut installation position on the upper cover product 5.

[0046] A slider rail assembly 605 is provided below the push rod connecting plate 604 to enable the sliding of the push rod connecting plate 604. The slider rail assembly 605 is mounted on the second base plate 606, which is supported and positioned by a support frame 607 mounted on the base plate 1. The push rod 603 is provided with a long slot 609. The push rod 603 is positioned on the push rod connecting plate 604 by passing the lower end of a screw through the long slot 609. The position of the push rod 603 on the push rod connecting plate 604 can be adjusted by adjusting the position of the screw passing through the long slot 609, thereby adjusting the stroke distance of the nut press.

[0047] Positioning frame plates 608 are respectively provided at both ends of the second base plate 606. The servo electric cylinder 601 is provided on the positioning frame plate 608 on one side. The rear pressure base plate 8 and the rear pressure limiting plate 9 are connected to the positioning frame plate 608 on the other side. The rear pressure base plate 8 and the rear pressure limiting plate 9 form a rear pressure channel for the push rod 603 to push the nut. The rear pressure limiting plate 9 is provided with a through hole for the nut in the nut clip 3 to fall and a through hole for the upper cover product 5 to pass through. The upper positioning component 703 is provided on the rear pressure limiting plate 9 to reinforce and limit the upper end of the upper cover product 5 to buffer the thrust of the nut's rear pressure.

[0048] like Figures 5-10 As shown, the product positioning support component 7 includes an ejector cylinder 701, an ejector base plate component 702, and an upper positioning component 703. The telescopic rod of the ejector cylinder 701 is connected to the ejector base plate component 702. A contour positioning fixture 704 corresponding to the bottom of the upper cover product 5 is provided on the ejector base plate component 702 to achieve product positioning. The upper positioning component 703 is used to limit the upper end of the upper cover product 5.

[0049] A safety light curtain 10 is installed at the front end of the product positioning support component 7. The safety light curtain 10 is positioned on the outer shell 2 and serves a protective function. If someone accidentally puts their hand into the safety light curtain 10 during the back pressing operation, the protection mechanism will be triggered. A nut positioning sensing mechanism 11 is also installed at the corresponding position of the nut on the back pressing base plate 8. The nut positioning sensing mechanism 11 is a relevant sensing sensor. The relevant nut back pressing process will only begin after the nut is sensed to be in position.

[0050] The structure of the top cover product 5 of this invention is as follows: Figure 7 As shown, the process method of the nut pressing device applicable to industrial production lines of the present invention includes the following steps:

[0051] S1: Insert the nut into the nut clip 3, then position the nut clip 3 on the support side plate 403 and clamp it by the side positioning clip 405 on the support side plate 403.

[0052] S2: The nut is transported by the nut clip 3, the nut enters the predetermined hole, and the nut positioning sensing mechanism 11 senses that the nut has been positioned.

[0053] S3: Place the top cover product 5 into the contour positioning fixture 704 for positioning, and then the ejector cylinder 701 works to raise the top cover product 5 to the predetermined pressing position.

[0054] S4: Press the two control switches 12 on the base plate 1 with both hands at the same time to start the device. The push rod 603 moves forward under the action of the servo electric cylinder 601 to press the nut back.

[0055] S5: The nut is pressed in and the push rod 603 retracts back to the initial position. The new nut falls from the nut clip 3 into the predetermined position. At the same time, the ejector cylinder 701 works to lower the top cover product 5 to the initial position, remove the completed product, and replace it with a new product to be processed.

[0056] S6: After the nuts in the nut clip 3 are used up, replace the nut clip 3 with a new one and continue the above process.

[0057] The structure of the nut used in this invention is as follows: Figure 11 As shown, one side of the nut is provided with an inclined angle, which matches the inclined chamfer 303 provided on the cover plate 302, and plays a role in preventing errors when loading the nut.

[0058] The nut pressing device of the present invention has the following advantages during operation:

[0059] (1) The magazine fixture of this equipment has a mistake-proof function to ensure that the nut is pressed in the correct direction;

[0060] (2) This equipment has the function of monitoring the thrust of the rear pressure nut;

[0061] (3) This equipment has the function of adjusting the stroke distance of each nut. The rear end of the nut push rod has a long slot hole, which is normally locked. The effective distance of the front end of the nut push rod can be adjusted by adjusting the thread at the rear end, thereby making the stroke distance of the push rod pushing the nut finely adjusted.

[0062] (4) This equipment can be connected to the MES system, and the pressure data of the nut pressing stroke can be traced through MES binding.

[0063] It should be noted that when the device of this invention is working, it performs the post-pressing nut process on one top cover product 5 at a time. The products shown in the attached drawings of this patent are two, one upper and one lower, only to illustrate the different positions of the top cover product 5 in the pressing nut production process. Figure 6 For example, position A is the initial position of the top cover product 5 placed on the ejector base plate assembly 702, and position B is the position of the top cover product 5 after the ejector cylinder 701 ejects and the nut is pressed back.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A nut pressing device suitable for industrial production lines, characterized in that, The product includes a base plate (1), a shell (2), a nut clip assembly, a drive assembly (6), a product positioning support assembly (7), and a control switch (12). The nut clip assembly includes a nut clip (3) and a clip support assembly (4) for carrying the nut to be pressed in. The drive assembly (6) is a servo electric cylinder drive mechanism for providing the driving force required for pressing in the nut. The product positioning support assembly (7) is used to fix the top cover product (5) to complete the nut pressing operation. The control switch (12) is set on the base plate (1) for controlling the nut pressing operation. The nut clip (3) includes a vertical plate (301), on which three grooves are provided, and each groove is provided with a corresponding cover plate (302). The groove between the vertical plate (301) and the cover plate (302) forms the bearing cavity of the nut, and the size of the groove corresponds to the size of the nut. The drive assembly (6) includes a servo electric cylinder (601), a pressure sensor (602), a push rod (603), and a push rod connecting plate (604). The telescopic shaft of the servo electric cylinder (601) is connected to one end of the pressure sensor (602), and the other end of the pressure sensor (602) is connected to the push rod connecting plate (604). The three push rods (603) are adjustablely arranged on the push rod connecting plate (604). The position of the push rod (603) corresponds to the falling position of the nut in the nut clip (3). The length of the push rod (603) is set according to the nut installation position on the top cover product (5). A slider rail assembly (605) is provided below the push rod connecting plate (604) to realize the sliding of the push rod connecting plate (604). The slider rail assembly (605) is set on the second base plate (606). The second base plate (606) is supported and positioned by a support frame (607). The support frame (607) is set on the base plate (1). The push rod (603) is provided with a long slot (609). The position of the push rod (603) on the push rod connecting plate (604) is adjusted by the long slot (609), thereby realizing the adjustment of the nut pressing stroke distance.

2. The nut pressing device suitable for industrial production lines according to claim 1, characterized in that, The cover plate (302) is provided with an inclined chamfer (303) that matches the shape of the nut, which serves to prevent errors when loading the nut.

3. A nut pressing device suitable for industrial production lines according to claim 2, characterized in that, The magazine support assembly (4) includes a support column (401), a support base plate (402), a support side plate (403), and a support rib (404). The support column (401) is mounted on the base plate (1), the support base plate (402) is mounted on the top of the support column (401), and the support side plate (403) is connected and fixed to the support base plate (402) through the support rib (404). The nut magazine (3) is mounted on the support side plate (403) and clamped and positioned by a side positioning clamp (405) mounted on the support side plate (403).

4. A nut pressing device suitable for industrial production lines according to claim 3, characterized in that, Positioning frame plates (608) are respectively provided at both ends of the second base plate (606). The servo electric cylinder (601) is set on the positioning frame plate (608) on one side. The rear pressure base plate (8) and the rear pressure limit plate (9) are connected on the positioning frame plate (608) on the other side. The rear pressure base plate (8) and the rear pressure limit plate (9) form a rear pressure channel for the push rod (603) to push the nut. The rear pressure limit plate (9) is provided with a through hole for the nut in the nut clip (3) to fall and a through hole for the top cover product (5) to pass through. A nut positioning sensing mechanism (11) is also provided at the corresponding position of the nut falling on the rear pressure base plate (8).

5. A nut pressing device suitable for industrial production lines according to claim 4, characterized in that, The product positioning support component (7) includes an ejection cylinder (701), an ejection base plate component (702), and an upper positioning component (703). The telescopic rod of the ejection cylinder (701) is connected to the ejection base plate component (702). A contour positioning fixture (704) corresponding to the bottom of the upper cover product (5) is provided on the ejection base plate component (702) to realize product positioning. The upper positioning component (703) is used to limit the upper end of the upper cover product (5). The upper positioning component (703) is set on the rear pressure limiting plate (9) to reinforce and limit the upper end of the upper cover product (5) to buffer the thrust of the nut pressing back.

6. A nut pressing device suitable for industrial production lines according to claim 5, characterized in that, A safety light curtain (10) is provided at the front end of the product positioning support component (7). The safety light curtain (10) is positioned on the outer shell (2) and plays a protective role.

7. The process method for the nut pressing device suitable for industrial production lines as described in claim 5 or 6, characterized in that, Includes the following steps: S1: Insert the nut into the nut clip (3), then position the nut clip (3) on the support side plate (403) and clamp it by the side positioning clip (405) on the support side plate (403); S2: The nut is transported by the nut clip (3), the nut enters the predetermined hole, and the nut positioning sensing mechanism (11) senses that the nut has been positioned; S3: Place the top cover product (5) into the contour positioning fixture (704) for positioning, and then the ejector cylinder (701) works to raise the top cover product (5) to the predetermined back pressure position; S4: Press the two control switches (12) on the base plate (1) with both hands at the same time to start the device. The push rod (603) moves forward under the action of the servo electric cylinder (601) to press the nut back. S5: After the nut is pressed in, the push rod (603) retracts back to the initial position, the new nut falls from the nut clip (3) into the predetermined position, and at the same time the ejector cylinder (701) works to lower the top cover product (5) to the initial position, then the completed product is taken out and replaced with a new product to be added. S6: After the nuts in the nut clip (3) are used up, replace them with new nut clips (3) and continue the above process.

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