A pallet nut flipping and sealing forming device

Abstract

This invention discloses a pallet nut flipping and closing forming device, comprising a forming mechanism and a manual press. The forming mechanism is mounted and fixed on the base plate of the manual press. Pressure is applied to the forming block of the forming mechanism by the manual press, causing the forming block to press down and position and tighten the pallet nut assembly located in the processing groove on the forming base of the forming mechanism. A rotatable flipping forming block is installed in the processing groove on the forming base. Under the combined action of the forming base, the flipping forming block, and the forming press, the closing forming of the pallet nut assembly is completed. This invention has a compact and ingenious structure, is simple to operate, convenient to use, has accurate closing dimensions, reliable quality, and good consistency. It also allows for switching between manual and press-operated operation, reducing the labor intensity of workers.

Description

Technical Field

[0001] This invention relates to the field of nut assembly processing, and specifically to a pallet nut flipping and closing forming device. Background Technology

[0002] The pallet nut assembly consists of two parts: a baffle and a self-locking nut. Both the baffle and the self-locking nut are small parts. The positional gap between the baffle and the self-locking nut is large, making accurate positioning difficult during the finishing process. The process quality requirements after molding are strict, and the production batch is large. In the existing technology, they are mostly made by manual hammering by workers, resulting in unstable quality and high labor intensity.

[0003] The publication number CN 110153320 A discloses a manual closing device for a self-locking nut. It utilizes an elliptical hole in the upper plate of the closing rotating plate in conjunction with a pair of pressure heads to convert the rotational pressure of the handle into the shrinking and tightening force of the pressure head plug, thereby achieving manual closing.

[0004] However, the solution lacks a reliable fixing structure for the self-locking nut of the pallet, which can easily cause the self-locking nut to float away from the upper plate due to compression, resulting in large deviations in the closing size. In addition, the device is operated manually, which results in high labor intensity for workers. Summary of the Invention

[0005] The purpose of this invention is to provide a pallet nut flipping and closing forming device, which can accurately position the pallet self-locking nut before closing and also has a precise guiding function.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] A pallet nut flipping and closing forming device includes a forming mechanism and a manual press. The forming mechanism is mounted and fixed on the base plate of the manual press. Pressure is applied to the forming block of the forming mechanism by the manual press. The forming block presses down and positions and presses the pallet nut assembly located in the processing groove on the forming base of the forming mechanism. A rotatable flipping forming block is installed in the processing groove on the forming base. Under the combined action of the forming base, the flipping forming block and the forming press, the closing forming of the pallet nut assembly is completed.

[0008] Furthermore, the molding mechanism includes a molding base, a vertical plate, a guide plate, and a molding pressure block; wherein,

[0009] The upright plate is fixed to the side of the molding base, and the guide plate is vertically fixed on the upright plate. The guide plate has an installation groove, and the lower end of the molding block passes through the installation groove.

[0010] The lower side of the forming block has a boss, and the side of the boss is a guide surface. When the forming block is pressed down, the guide surface contacts the positioning base surface on the forming base. The lower side of the forming block has a forming ridge and a pair of receiving holes. The receiving holes are used to accommodate the self-locking nut during the forming process. A cylindrical tapered pin is installed at the bottom of the receiving hole and is used to insert into the self-locking nut during the pressing forming process to limit the self-locking nut.

[0011] Furthermore, the upper surface of the molding base is provided with a processing groove, which includes two parts: one part is a first positioning surface and a second positioning surface that are perpendicular to each other, and the other part is an installation groove with a circular arc structure on the side of the first positioning surface, which is used to assemble the flipping molding block.

[0012] Furthermore, the flipping molding block has a cylindrical structure and is installed in the mounting groove, allowing it to rotate within the groove; two mutually perpendicular first molding surfaces and second molding surfaces are machined on the side of the flipping molding block.

[0013] The side of the molding base is machined with an inclined tension spring hole, in which a tension spring is installed and connected to the connecting hole on the flipping molding block; when the flipping molding block is reset, the tension spring drives the flipping molding block to rotate and reset.

[0014] Furthermore, a positioning element is installed on the side of the processing groove on the forming base. The positioning element is a concave sheet metal part, which is used to limit the two ends of the tray on the tray nut.

[0015] Furthermore, the plate nut assembly to be processed is placed into the processing groove, and one side of the vertical baffle on the plate nut assembly is placed in the first positioning surface and the second positioning surface. The two ends of the plate nut assembly are positioned by positioning parts; the inclined baffle on the other side of the plate nut assembly is formed during the flipping process of the flipping forming block.

[0016] Furthermore, the two ends of the processing groove are provided with stops to limit the axial position of the flipped forming block.

[0017] Furthermore, after the flip-forming block is installed in the mounting slot, in its unprocessed state, due to the action of the tension spring, the position maintained by the flip-forming block results in an angle difference between the first forming surface and the first positioning surface on the forming base; an arc-shaped groove is machined on the second forming surface. During the process of the forming block pressing down to form the end, the forming edge on the forming block presses against the position where the inclined baffle on the support plate nut assembly connects to the support plate. During the pressing process, the flip-forming block is driven to rotate; the flip-forming block rotates until the first forming surface is flush with the first positioning surface, which drives the second forming surface to push the inclined baffle to make it vertical, while the groove is used to avoid the lug on the self-locking nut.

[0018] Furthermore, the manual press includes an eccentric cam and a handle; the eccentric cam is mounted on an adjustable height bracket via a rotating shaft, and the bracket is fixed to the base plate; by pressing down the handle, the eccentric cam is driven to rotate, and the rotational pressure is transmitted to the forming block in the forming mechanism, so that the forming block presses down to process and form the pallet nut assembly; after releasing the handle, the reset torsion spring mounted on the rotating shaft drives the eccentric cam to reset.

[0019] Furthermore, during operation, the device places the pallet nut assembly into the machining grooves of the positioning component and the forming base. The forming block is then pressed down by a manual press. After the guide surface on the forming block contacts the positioning base surface on the forming base, the cylindrical tapered pin guides the self-locking nut onto the cylindrical tapered pin. The forming block is pressed down further, causing the forming edge to drive the flipping forming block to rotate in the forming base. Finally, after the forming block, forming base, and flipping forming block are closed, the end forming of the baffle is completed. After the external force is removed, the forming block resets, and the flipping forming block also resets under the action of the tension spring.

[0020] Furthermore, the forming block has a T-shaped structure, and a spring is installed between the forming block and the upper surface of the guide plate via a guide rod, which is used to reset the forming block after the external force is removed.

[0021] Furthermore, the positioning base surface is machined on the second positioning profile.

[0022] Compared with the prior art, the present invention has the following technical features:

[0023] The device of this invention has a compact and sophisticated structure, is simple to operate, convenient to use, and produces precise closing dimensions with reliable quality and good consistency. It can also be switched between manual and press operation, reducing the labor intensity of workers. Multiple batches of products have been produced using this device, with stable and reliable product quality. It has also significantly improved production efficiency, improved the original arduous manual production methods and conditions for workers, reduced labor intensity and difficulty, enhanced product quality, and greatly reduced production costs, creating significant beneficial effects. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the pallet nut assembly to be processed in this invention;

[0025] Figure 2 A schematic diagram showing the structural changes during the forming process of the pallet nut assembly;

[0026] Figure 3 This is a schematic diagram of the overall assembly structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the molding mechanism of the present invention, wherein (a) is a front view, (b) is a side sectional view, and (c) is a top view.

[0028] Figure 5 This is a schematic diagram of the flip-forming block of the present invention;

[0029] Figure 6 This is a schematic diagram of the molding block of the present invention;

[0030] Figure 7 This is a schematic diagram of the molding base of the present invention.

[0031] The components are: A. support plate nut, A1 support plate, A2 lug, A3 self-locking nut, A4 baffle, A5 buttonhole, 1 forming base, 2 upright plate, 3 guide plate, 4 forming pressure block, 5 spring, 6 guide rod, 7 bracket, 8 eccentric cam, 9 flip forming block, 10 tension spring, 11 handle, 12 boss, 13 stop block, 14 positioning base surface, 15 positioning component, 16 cylindrical tapered pin, 91 first forming surface, 92 second forming surface, 93 groove, 94 connecting hole, 401 forming ridge surface, 402 receiving hole, 101 machining groove, 102 first positioning surface, 103 second positioning surface, 104 mounting groove, 105 tension spring hole. Detailed Implementation

[0032] The pallet nut assembly A of the present invention includes a pallet A1 and a pair of self-locking nuts A3 with lugs A2 spaced apart on the pallet A1; the pallet A1 has baffles A4 on both sides, one baffle A4 being prefabricated as a vertical structure, and the other side being inclined to the pallet A1; the purpose of the processing is to place the two self-locking nuts A3 on the pallet, first pass the lugs A2 on one side of the self-locking nuts A3 through the notches A5 on the vertical baffle A4, and then process the baffle A2 on the other side from an inclined state to a vertical state through this device, during which the lugs A2 on that side also need to pass through the notches on the baffle A4, thereby completing the closing and forming process, such as... Figure 1 and Figure 2 As shown.

[0033] After accurately positioning the pallet nut assembly A, the device of this invention drives the flipping forming block 9 by pressing down the forming block 4. The forming base 1 and the flipping forming block 9 form a cavity, thereby achieving the closing and forming of the baffle A4. The lug A2 of the self-locking nut A3 is then engaged into the baffle A4. This effectively solves the bottleneck problem in actual production, ensures the closing quality, improves production efficiency, and reduces production costs.

[0034] See appendix Figure 1This invention provides a pallet nut flipping and closing forming device, including a forming mechanism and a manual press. The forming mechanism is mounted and fixed on the base plate of the manual press. After adjusting the stroke of the eccentric cam 8, the handle 11 is rotated to drive the eccentric cam 8, applying pressure to the forming block 4 of the forming mechanism. The forming block 4 presses down, positioning and pressing the pallet nut assembly A in the processing groove 101 on the forming base 1 of the forming mechanism. A rotatable flipping forming block 9 is installed in the processing groove 101 on the forming base 1. Under the combined action of the forming base 1, the flipping forming block 9, and the forming block 4, the closing forming of the pallet nut assembly A is completed. Specifically:

[0035] The molding mechanism includes a molding base 1, a vertical plate 2, a guide plate 3, a molding pressure block 4, a positioning component 15, and a flipping molding block 9; wherein...

[0036] The upright plate 2 is fixed to the side of the molding base 1, and the guide plate 3 is vertically fixed on the upright plate 2. The guide plate 3 has an installation groove 104, and the lower end of the molding block 4 passes through the installation groove 104. The molding block 4 has a T-shaped structure, and a spring 5 is installed between the molding block 4 and the upper surface of the guide plate 3 through a guide rod 6, which is used to reset the molding block 4 after the external force is removed.

[0037] like Figure 4 As shown, a boss 12 is provided on the lower side of the forming block 4, and the side of the boss 12 is a guide surface. When the forming block 4 is pressed down, the guide surface contacts the positioning base surface 14 on the forming base 1 to ensure that the working position of the forming block 4 is accurate. The lower side of the forming block 4 is provided with a forming ridge surface 401 and a pair of receiving holes 402. The receiving holes 402 are used to accommodate the self-locking nut A3 part during the forming process. A cylindrical tapered pin 16 is installed at the bottom of the receiving hole 402 to be inserted into the self-locking nut A3 during the pressing forming process to limit the self-locking nut A3 and ensure that the position of the self-locking nut A3 does not move during the pressing forming process, preventing collision with the shaped surface of the forming block 4.

[0038] The upper surface of the molding base 1 is provided with a processing groove 101, which includes two parts: a first positioning surface 102 and a second positioning surface 103 that are perpendicular to each other, such as... Figure 7 As shown, another part is an installation groove 104 with a circular arc cross-section located on the side of the first positioning surface 102, used to assemble the flipping forming block 9; the positioning base surface 14 is machined on the second positioning surface 103, that is, on the side wall of the processing groove 101; a positioning element 15 is installed on the forming base on the side of the processing groove 101, such as... Figure 3As shown, the positioning element 15 is a concave sheet metal part, which limits the two ends of the pallet. The pallet nut assembly A to be processed is placed into the processing groove 101. One side of the vertical baffle A4 on the pallet nut assembly A is placed on the first positioning surface 102 and the second positioning surface 103. The two ends of the pallet nut assembly A are positioned by the positioning element 15; the inclined baffle A4 on the other side of the pallet nut assembly A is formed during the flipping process of the flipping forming block 9. The two ends of the processing groove 101 are also provided with stops 13 to limit the axial position of the flipping forming block 9.

[0039] The flipping forming block 9 is a core component. It is molded to the final dimensions of the support plate nut baffle and precisely fits into the forming base 1. The flipping forming block 9 has a cylindrical structure, such as... Figure 5 As shown, the flip-forming block 9 is installed in the mounting groove 104 and can rotate within the mounting groove 104. Two mutually perpendicular first forming surfaces 91 and second forming surfaces 92 are machined on the side of the flip-forming block 9. After the flip-forming block 9 is installed in the mounting groove 104, in its unprocessed state, due to the action of the tension spring 10, the position maintained by the flip-forming block 9 results in an angle difference between the first forming surface 91 and the first positioning surface 102 on the forming base 1. An arc-shaped groove 93 is machined on the second forming surface 92. During the closing forming process when the forming pressure block 4 presses down, the forming ridge surface on the forming pressure block presses against the position where the inclined baffle A4 on the pallet nut assembly A connects to the pallet A1. During the pressing process, the flipping forming block 9 is rotated. When the first forming surface 91 is flush with the first positioning surface 102, the second forming surface 92 pushes the inclined baffle A4 to a vertical position. The groove 93 avoids the lug A2 on the self-locking nut A3, preventing the surface from deforming the lug A2. A connecting hole 94 is machined on the side of the flipping forming block 9. An inclined tension spring hole 105 is machined on the side of the forming base, and a tension spring 10 is installed in the tension spring hole 105, connecting to the connecting hole 94 of the flipping forming block 9. When the flipping forming block 9 returns to its original position, the tension spring 10 rotates it back to its original position, allowing the next part to be processed. The tension spring 10 provides a certain eccentric torque to the flipping forming block 9, enabling it to automatically return to its original position after the external force is removed.

[0040] like Figure 1 As shown, the manual press in this solution includes an eccentric cam 8 and a handle 11. The eccentric cam 8 is mounted on an adjustable height bracket 7 via a rotating shaft. By pressing down the handle 11, the eccentric cam 8 is driven to rotate, and the rotational pressure is transmitted to the forming block 4 in the forming mechanism, so that the forming block 9 presses down to process and form the pallet nut assembly A. After releasing the handle 11, the reset torsion spring mounted on the rotating shaft drives the eccentric cam 8 to reset.

[0041] In operation, the pallet nut assembly A is placed in the processing groove 101 of the positioning member 15 and the forming base 1. The forming block 4 is pressed down by a manual press. After the guide surface on the forming block 4 contacts the positioning base surface 14 on the forming base 1, the cylindrical tapered pin 16 acts to guide the self-locking nut A3 to be sleeved on the cylindrical tapered pin 16. The forming block 4 is pressed down further, so that the forming edge 401 drives the flip forming block 9 to rotate in the forming base 1. Finally, after the forming block 4, the forming base 1 and the flip forming block 9 are closed, the forming of the baffle A4 is completed. After the external force is removed, the forming block 4 is reset, and the flip forming block 9 is also reset under the action of the tension spring 10.

[0042] The basic principle of the forming structure in this invention is to use the shape of the baffle A4 in the pallet nut assembly A for initial positioning. During the pressing process, the cylindrical tapered pin 16 mounted on the forming block 4 first guides and positions the self-locking nut A3 of the pallet nut assembly A so that it does not move. The forming block 4 is pressed down, pressing the baffle A4 of the pallet nut assembly A onto the flipping forming block 9, which drives the flipping forming block 9 to flip. Under the action of the flipping forming block 9, the baffle A4 completes the closing forming and maintains the pressure for 2 to 3 seconds for forming. After that, the pressure is released, and one production cycle is completed.

[0043] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A device for flipping and forming a pallet nut, characterized in that, The assembly includes a molding mechanism and a manual press. The molding mechanism is mounted on the base plate of the manual press. The manual press applies pressure to the molding block (4) of the molding mechanism. The molding block (4) presses down and positions and presses the pallet nut assembly (A) located in the processing groove (101) on the molding base (1) of the molding mechanism. In the pallet nut assembly (A), one side baffle (A4) of the pallet (A1) is prefabricated as a vertical structure, and the other side baffle (A4) is inclined to the pallet (A1). Before processing, the lug (A2) placed on the side of the self-locking nut (A3) on the pallet (A1) passes through the buttonhole (A5) on the vertical baffle (A4). A rotatable flipping molding block (9) is installed in the processing groove (101) on the molding base (1). Under the combined action of the molding base (1), the flipping molding block (9) and the molding block (4), the closing molding of the pallet nut assembly (A) is completed. The molding mechanism includes a molding base (1), a vertical plate (2), a guide plate (3), and a molding pressure block (4); The upright plate (2) is fixed to the side of the molding base (1), and the guide plate (3) is vertically fixed on the upright plate (2). The guide plate (3) has an installation groove, and the lower end of the molding block (4) passes through the installation groove on the guide plate (3). A boss (12) is provided on the lower side of the molding block (4), and the side of the boss (12) is a guide surface. When the molding block (4) is pressed down, the guide surface contacts the positioning base surface (14) on the molding base (1). A molding ridge (401) is formed on the lower side of the molding block (4) for pressing the molding block (4) under the molding base (1). During the pressing and forming process, the forming edge (401) on the forming block (4) presses on the position where the inclined baffle (A4) and the support plate (A1) are connected on the support plate nut assembly (A). During the pressing process, the forming edge (401) drives the rotating forming block (9) set in the forming base (1) to rotate, thereby pushing the inclined baffle (A4) from the inclined state to the vertical state through the rotating forming block (9), and causing the lug (A2) on the same side of the self-locking nut (A3) to pass through the buttonhole (A5) on the baffle (A4) on that side, thereby completing the closing and forming process.

2. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The forming block (4) also has a pair of receiving holes (402) on its lower side. The receiving holes (402) are used to accommodate the self-locking nut (A3) during the forming process. A cylindrical tapered pin (16) is installed at the bottom of the receiving hole (402) and is used to insert into the self-locking nut (A3) during the pressing forming process to limit the self-locking nut (A3).

3. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The upper surface of the molding base (1) is provided with a processing groove (101). The processing groove (101) includes two parts: one part is a first positioning surface (102) and a second positioning surface (103) that are perpendicular to each other; the other part is an installation groove (104) with a circular arc structure located on the side of the first positioning surface (102), which is used to assemble the flipping molding block (9).

4. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The flipping forming block (9) has a cylindrical structure and is installed in the mounting groove (104), and can rotate in the mounting groove (104); two mutually perpendicular first forming surfaces (91) and second forming surfaces (92) are processed on the side of the flipping forming block (9); The side of the molding base (1) is machined with an inclined tension spring hole (105), and a tension spring (10) is installed in the tension spring hole (105). The tension spring (10) is connected to the connecting hole (94) on the flipping molding block (9). When the flipping molding block (9) is reset, the tension spring (10) drives the flipping molding block (9) to rotate and reset.

5. The pallet nut flipping and closing forming device according to claim 1, characterized in that, A positioning element (15) is installed on the side of the processing groove (101) on the forming base. The positioning element (15) is a concave sheet metal part used to limit the two ends of the pallet (A1) on the pallet nut assembly (A).

6. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The plate nut assembly (A) to be processed is placed into the processing groove (101). The vertical baffle (A4) on the plate nut assembly (A) is placed in the first positioning surface (102) and the second positioning surface (103). The two ends of the plate nut assembly (A) are positioned by positioning members (15). The inclined baffle (A4) on the other side of the plate nut assembly (A) is formed during the flipping process of the flipping forming block (9).

7. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The processing groove (101) is provided with stops (13) at both ends to limit the axial position of the flipping forming block (9).

8. The pallet nut flipping and closing forming device according to claim 4, characterized in that, After the flipping molding block (9) is installed in the mounting groove (104), in the unprocessed state, due to the action of the tension spring (10), the position maintained by the flipping molding block (9) makes the first molding surface (91) and the first positioning surface (102) on the molding base (1) have an angle difference; the second molding surface (92) is machined with an arc-shaped groove (93). During the process of the molding pressure block (4) pressing down to form the end, the molding edge (401) on the molding pressure block (4) presses on the position of the inclined baffle (A4) on the pallet nut assembly (A) and the connection between the pallet (A1). During the pressing down, the flipping molding block (9) is driven to rotate; the flipping molding block (9) rotates until the first molding surface (91) is flush with the first positioning surface (102), which drives the second molding surface (92) to push the inclined baffle (A4) to make it vertical, while the groove (93) is used to avoid the lug (A2) on the self-locking nut (A3).

9. The pallet nut flipping and closing forming device according to claim 1, characterized in that, The manual press includes an eccentric cam (8) and a handle (11); the eccentric cam (8) is mounted on an adjustable height bracket (7) via a rotating shaft, and the bracket (7) is fixed on the base plate; by pressing down the handle (11), the eccentric cam (8) is driven to rotate, and the rotational pressure is transmitted to the forming block (4) in the forming mechanism, so that the forming block (4) presses down to process and form the pallet nut assembly (A); after releasing the handle (11), the reset torsion spring mounted on the rotating shaft drives the eccentric cam (8) to reset.

10. The pallet nut flipping and closing forming device according to claim 1, characterized in that, When the device is working, the pallet nut assembly (A) is placed in the processing groove (101) of the positioning part (15) and the forming base (1). The forming block (4) is pressed down by a manual press. After the guide surface on the forming block (4) contacts the positioning base surface (14) on the forming base (1), the cylindrical tapered pin (16) acts to guide the self-locking nut (A3) to be sleeved on the cylindrical tapered pin (16). The forming block (4) is pressed down further, so that the forming edge (401) drives the flip forming block (9) to rotate in the forming base (1). Finally, after the forming block (4), the forming base (1) and the flip forming block (9) are closed, the forming of the baffle (A4) is completed. After the external force is removed, the forming block (4) is reset, and the flip forming block (9) is also reset under the action of the tension spring (10).

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