A method and device for gluing special-shaped metal sealing ring

Abstract

The present invention relates to the technical field of mechanical parts processing, specifically a method and device for gluing special-shaped metal sealing rings, the gluing device for special-shaped metal sealing rings comprising a base, a fixed plate connected to the base via a positioning guide column, the fixed plate being provided with a plurality of cylindrical through holes, the plurality of cylindrical through holes being provided with corresponding middle mold cores for supporting the special-shaped metal sealing rings, the bottom of the middle mold core being connected to the base, the upper right side and the lower left side of each cylindrical through hole being provided with corresponding grooves connected to the cylindrical through holes, the grooves being provided with corresponding locking pads for clamping and fixing the outer cylindrical surface of the special-shaped metal sealing ring by interference fit. The present invention enables batch gluing and batch flipping of multiple special-shaped metal sealing rings to be achieved at one time, and the gluing operation of multiple special-shaped metal sealing rings can be performed in one flip, greatly improving the efficiency of the gluing operation.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical parts processing, in particular to a method and device for gluing a special-shaped metal sealing ring. Background Art

[0002] Special-shaped metal sealing rings require vulcanized rubber for sealing or shock absorption. To ensure that the vulcanized rubber and special-shaped metal sealing rings are more firmly bonded, the special-shaped metal sealing rings need to be coated with glue before vulcanization. Figure 1 , see the location where glue is needed Figure 2 In order to improve the efficiency of gluing operations and reduce the labor intensity of production personnel, thereby achieving the goal of reducing costs and increasing efficiency, the gluing operation method of special-shaped metal sealing rings has been adjusted from traditional manual operations to batch automatic gluing operations by robots. However, since the area of ​​the special-shaped metal sealing rings that require gluing is incomplete, the traditional manual operation method cannot directly adapt to the batch automatic gluing operation of the robot. At the same time, the special-shaped metal sealing rings need to be glued on both sides. After completing the gluing operation on one side, the batch flipping of the special-shaped metal sealing rings cannot be completed, resulting in the inability to fully utilize the advantages of the robot, which is not conducive to improving production efficiency. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention proposes a method and device for gluing special-shaped metal sealing rings.

[0004] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0005] A device for coating glue on a special-shaped metal sealing ring comprises a base and a fixed plate connected to the base via a positioning guide column, the fixed plate being provided with a plurality of cylindrical through holes, the plurality of cylindrical through holes being provided with corresponding middle mold cores for supporting the special-shaped metal sealing ring, the bottom of the middle mold core being connected to the base, the upper right side and the lower left side of each cylindrical through hole being provided with corresponding grooves connected to the cylindrical through hole, the grooves being provided with corresponding locking pads for clamping and fixing the special-shaped metal sealing ring by interference fit with the outer cylindrical surface.

[0006] As a further improvement of the present invention, a base positioning through hole connected to the bottom of the middle mold core is correspondingly provided on the base.

[0007] As a further improvement of the present invention, base connection through holes connected to the lower end of the positioning guide column are provided at the four axes of the end face of the base, and fixed plate connection through holes connected to the upper end of the positioning guide column are provided around the end face of the fixed plate.

[0008] As a further improvement of the present invention, the middle mold core is a hollow T-shaped cylindrical structure, the middle mold core and the cylindrical through hole are interference fit, the bottom of the middle mold core is provided with a positioning connection part, the bottom of the middle mold core is fitted with the upper end surface of the base, and the positioning connection part and the positioning through hole of the base are interference fit.

[0009] As a further improvement of the present invention, the fitting clearance between the middle mold core and the cylindrical through hole, and between the positioning connection portion and the base positioning through hole is 0.5 mm to 1 mm.

[0010] As a further improvement of the present invention, a threaded through hole is provided in the middle of the bottom of the groove, and the locking washer is installed in the groove through a cylindrical head hexagon socket bolt and a threaded through hole, and the locking washer is coaxially matched with the groove.

[0011] As a further improvement of the present invention, the fitting clearance between the locking washer and the groove is 0.5 mm to 1 mm.

[0012] As a further improvement of the present invention, the interference between the locking washer and the outer cylindrical surface of the special-shaped metal sealing ring is 0.2mm to 0.3mm.

[0013] As a further improvement of the present invention, the upper end surface of the positioning guide column is 1 mm lower than the upper end surface of the fixing plate.

[0014] A method for gluing a special-shaped metal sealing ring, using the above-mentioned gluing device for a special-shaped metal sealing ring, comprises the following steps:

[0015] Step (1) First, complete the assembly of the locking washer and the fixed plate, the assembly of the positioning guide pin and the fixed plate, and then complete the assembly of the middle mold core and the base. The fixed plate is held by the positioning guide pin to complete the assembly of the fixed plate and the base. Finally, the assembly of the glue coating device is completed. The glue coating device must be able to open flexibly without jamming.

[0016] Step (2) placing the special-shaped metal sealing ring onto the middle mold core through the cylindrical through hole, requiring the special-shaped metal sealing ring to fit with the upper end surface of the middle mold core, and the outer cylindrical surface of the special-shaped metal sealing ring to have an interference fit with the outer circle of the locking washer, while achieving the positioning of the special-shaped metal sealing ring and completing the fixing and clamping of the special-shaped metal sealing ring, and at the same time preventing the special-shaped metal sealing ring from rotating during the gluing process, and then performing the gluing operation on the current upper surface of the special-shaped metal sealing ring;

[0017] Step (3) After completing the gluing operation on one end face of the special-shaped metal sealing ring, remove the fixing plate from the base, hold the fixing plate to flip the upper and lower end faces 180 degrees, and then re-fit the fixing plate to the upper end face of the base through the positioning guide pins. The upper and lower end faces of the fixing plate are both provided with locking pads. During the fitting process of the fixing plate and the base, due to the clamping effect of the locking pads, the special-shaped metal sealing ring flips 180 degrees with the fixing plate. At this time, the end face of the special-shaped metal sealing ring that has completed the gluing is facing downwards and fits the upper end face of the middle mold core. Then, re-fit the fixing plate through the positioning guide pins and the upper end face of the base. During the end face fitting process, the resistance of the middle mold core to the special-shaped metal sealing ring causes the special-shaped metal sealing ring to move along the cylindrical through hole on the fixed plate, from the lower end face of the current cylindrical through hole to the upper end face of the cylindrical through hole, and then interference fit with the outer circle of the locking washer at the upper end face to achieve the limitation and fixation of the special-shaped metal sealing ring, and finally achieve a 180° flip of the special-shaped metal sealing ring, and move the uncoated surface of the special-shaped metal sealing ring that was originally facing downward to the upper end face by pushing, so that the uncoated surface can be glued, and finally the gluing operation of the product is completed.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides multiple circular through holes for placing special-shaped metal sealing rings, a middle mold core for supporting and providing thrust to change the surface of the special-shaped metal sealing rings, and a locking pad for clamping with the special-shaped metal sealing rings through interference fit, so that multiple special-shaped metal sealing rings can be batch-coated and batch-turned at one time, and multiple special-shaped metal sealing rings can be glued at one turn, which greatly improves the efficiency of the gluing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 It is a schematic diagram of the structure of a special-shaped metal sealing ring;

[0022] Figure 2 for Figure 1 AA cross-sectional structural diagram in;

[0023] Figure 3 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the main structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the base structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the base of the present invention;

[0027] Figure 7This is a schematic diagram of the upper end surface structure of the fixed plate of the present invention;

[0028] Figure 8 This is a schematic structural diagram of the lower end surface of the fixing plate of the present invention;

[0029] Figure 9 This is a schematic diagram of the cross-sectional structure of the fixing plate of the present invention;

[0030] Figure 10 Schematic diagram of the cross-sectional structure of the mold core in the present invention;

[0031] Figure 11 This is a schematic diagram of the cross-sectional structure of the locking pad of the present invention;

[0032] Figure 12 This is a schematic diagram of the positioning guide column structure of the present invention;

[0033] Figure 13 This is a schematic diagram of the installation of the metal sealing ring.

[0034] In the figure: 1. Base; 2. Fixed plate; 3. Middle mold core; 31. Positioning connection part; 4. Locking washer; 5. Hexagon socket bolt with cylindrical head; 6. Positioning guide column; 7. Base positioning through hole; 8. Base connecting through hole; 9. Fixed plate connecting through hole; 10. Cylindrical through hole; 11. Groove; 12. Threaded through hole. DETAILED DESCRIPTION

[0035] 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 with reference to the accompanying drawings and embodiments.

[0036] like Figures 3 to 12 As shown, a gluing device for a special-shaped metal sealing ring includes a base 1, a fixing plate 2, a middle mold core 3, a locking washer 4, a cylindrical head hexagon socket bolt 5, and a positioning guide column 6.

[0037] The upper end surface of the base 1 is aligned with the lower end surface of the fixed plate 2. The base 1 is provided with four rows of twelve base positioning holes 7, totaling forty-eight. Each of the forty-eight base positioning holes 7 accommodates forty-eight core molds 3, with each core mold 3 receiving a special-shaped metal sealing ring on its upper end surface. This allows the device to batch-flip forty-eight special-shaped metal sealing rings at once, significantly improving gluing efficiency. Four base connection holes 8 are provided at the four axes of the base 1's end surface, while four fixed plate connection holes 9 are provided around the perimeter of the fixed plate 2's end surface. During assembly, the lower ends of the four positioning guide posts 6 are first installed into the four base connection holes 8. The fixed plate 2 is then aligned with the upper ends of the four positioning guide posts 6 through the four fixed plate connection holes 9, thereby securing the fixed plate 2 to the base 1. After assembly, the upper ends of the four positioning guide posts 6 should be approximately 1 mm lower than the upper end surface of the fixed plate 2.

[0038] The fixed plate 2 is also provided with four rows, twelve in each row, for a total of forty-eight cylindrical through holes 10. The distribution positions of the forty-eight cylindrical through holes 10 are adapted to the positions of the forty-eight middle mold cores 3, so that the forty-eight middle mold cores 3 are correspondingly located in the forty-eight cylindrical through holes 10. The middle mold core 3 and the cylindrical through holes 10 are interference fit, and the fitting clearance is 0.5mm to 1mm.

[0039] Furthermore, the middle mold core 3 is a hollow T-shaped cylindrical structure, and a positioning connection part 31 is provided at the bottom of the middle mold core 3. The bottom of the middle mold core 3 is fitted with the upper end surface of the base 1, and the positioning connection part 31 is interference fit with the base positioning through hole 7, and the fitting clearance is 0.5mm~1mm.

[0040] On the upper end surface of the fixing plate 2 and on the right side of the forty-eight cylindrical through holes 10, forty-eight grooves 11 connected to the forty-eight cylindrical through holes 10 are correspondingly provided. On the lower end surface of the fixing plate 2 and on the left side of the forty-eight cylindrical through holes 10, forty-eight grooves 11 connected to the forty-eight cylindrical through holes 10 are also correspondingly provided. The locking pad 4 is provided with forty-eight grooves 11 on both the upper and lower surfaces of the fixing plate 2, corresponding to the ninety-six grooves 11 distributed on the upper and lower sides.

[0041] Furthermore, a threaded through-hole 12 is provided in the center of the bottom of each groove 11. The corresponding locking washer 4 in each groove 11 is secured within the groove 11 via the cylindrical hexagon socket bolt 5 and the threaded through-hole 12. The locking washer 4 and the corresponding groove 11 are coaxially matched, with a clearance of 0.5 mm to 1 mm. The end surface of the locking washer 4 is approximately 0.5 mm lower than the upper and lower end surfaces of the fixing plate 2.

[0042] A method for gluing a special-shaped metal sealing ring, using the above-mentioned gluing device for a special-shaped metal sealing ring, comprises the following steps:

[0043] Step (1) First, complete the assembly of the locking washer 4 and the fixed plate 2, the assembly of the positioning guide pin 6 and the fixed plate 2, then complete the assembly of the middle mold core 3 and the base 1, hold the fixed plate 2 by the positioning guide pin 6 to complete the assembly of the fixed plate 2 and the base 1, and finally complete the assembly of the glue coating device. The glue coating device is required to be able to open flexibly without jamming.

[0044] Step (2) Place the special-shaped metal sealing ring on the middle mold core 3 through the cylindrical through hole 10. The special-shaped metal sealing ring is required to fit the upper end surface of the middle mold core 3, and the outer cylindrical surface of the special-shaped metal sealing ring is interference-fitted with the outer circle of the locking washer 4. The interference amount is required to be 0.2mm to 0.3mm. Figure 13 As shown. While achieving the positioning of the special-shaped metal sealing ring, the fixing and clamping of the special-shaped metal sealing ring is completed, and the rotation of the special-shaped metal sealing ring during the gluing process can be prevented, and then the gluing operation on the current upper surface of the special-shaped metal sealing ring is carried out;

[0045] Step (3) After completing the gluing operation on one end face of the special-shaped metal sealing ring, remove the fixed plate 2 from the base 1, hold the fixed plate 2 to flip the upper and lower end faces 180 degrees, and then re-fit the fixed plate 2 to the upper end face of the base 1 through the positioning guide column 6. The upper and lower end faces of the fixed plate 2 are both provided with locking pads 4. During the process of fitting the fixed plate 2 to the base 1, due to the clamping effect of the locking pad 4, the special-shaped metal sealing ring flips 180 degrees with the fixed plate 2. At this time, the end face of the special-shaped metal sealing ring that has completed the gluing is facing downwards and fits the upper end face of the middle mold core 3. Then, re-fit the fixed plate 2 to the base through the positioning guide column 6. 1, the resistance of the middle mold core 3 to the special-shaped metal sealing ring causes the special-shaped metal sealing ring to move along the cylindrical through hole 10 on the fixed plate 2, and move from the lower end face of the current cylindrical through hole 10 to the upper end face of the cylindrical through hole 10, and then interfere with the outer circle of the locking washer 4 at the upper end face to achieve the limitation and fixation of the special-shaped metal sealing ring, and finally achieve a 180° flip of the special-shaped metal sealing ring, and move the non-glue-coated surface of the special-shaped metal sealing ring originally facing downward to the upper end face by pushing, so that the non-glue-coated surface can be glued, and finally the gluing operation of the product is completed.

[0046] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and description merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A gluing device for special-shaped metal sealing rings, characterized by: The invention comprises a base (1), a fixing plate (2) connected to the base (1) via a positioning guide column (6), a plurality of cylindrical through holes (10) are provided on the fixing plate (2), a middle mold core (3) for supporting a special-shaped metal sealing ring is correspondingly provided in the plurality of cylindrical through holes (10), the bottom of the middle mold core (3) is connected to the base (1), a groove (11) connected to the cylindrical through hole (10) is correspondingly provided on the upper right side and the lower left side of each cylindrical through hole (10), and a locking pad (4) is correspondingly provided in the groove (11) for clamping and fixing the special-shaped metal sealing ring by interference fit with the outer cylindrical surface.

2. The gluing device for a special-shaped metal sealing ring according to claim 1, characterized in that: The base (1) is provided with a corresponding base positioning through hole (7) connected to the bottom of the middle mold core (3).

3. The gluing device for a special-shaped metal sealing ring according to claim 2, characterized in that: Base connection through holes (8) connected to the lower end of the positioning guide column (6) are provided at the four axes of the end surface of the base (1), and fixed plate connection through holes (9) connected to the upper end of the positioning guide column (6) are provided at the four axes of the end surface of the fixing plate (2).

4. The gluing device for a special-shaped metal sealing ring according to claim 2, characterized in that: The middle mold core (3) is a hollow T-shaped cylindrical structure. The middle mold core (3) and the cylindrical through hole (10) are interference fit. A positioning connection part (31) is provided at the bottom of the middle mold core (3). The bottom of the middle mold core (3) is fitted with the upper end surface of the base (1), and the positioning connection part (31) and the base positioning through hole (7) are interference fit.

5. The gluing device for special-shaped metal sealing rings according to claim 4, characterized in that: The matching clearance between the middle mold core (3) and the cylindrical through hole (10), and between the positioning connection portion (31) and the base positioning through hole (7) is 0.5 mm to 1 mm.

6. The gluing device for special-shaped metal sealing rings according to claim 1, characterized in that: A threaded through hole (12) is provided at the middle of the bottom of the groove (11), and the locking washer (4) is installed in the groove (11) through a cylindrical head hexagon socket bolt (5) and the threaded through hole (12), and the locking washer (4) and the groove (11) are coaxially matched.

7. The gluing device for special-shaped metal sealing rings according to claim 1, characterized in that: The fitting clearance between the locking washer (4) and the groove (11) is 0.5 mm to 1 mm.

8. The gluing device for special-shaped metal sealing rings according to claim 1, characterized in that: The interference between the locking washer (4) and the outer cylindrical surface of the special-shaped metal sealing ring is 0.2 mm to 0.3 mm.

9. The gluing device for special-shaped metal sealing rings according to claim 1, characterized in that: The upper end surface of the positioning guide column (6) is 1 mm lower than the upper end surface of the fixing plate (2).

10. A method for gluing a special-shaped metal sealing ring, characterized by: A gluing device for a special-shaped metal sealing ring according to any one of claims 1 to 9 comprises the following steps: Step (1) first completes the assembly of the locking pad (4) and the fixed plate (2), the assembly of the positioning guide pillar (6) and the fixed plate (2), and then completes the assembly of the middle mold core (3) and the base (1). The fixed plate (2) is held by hand and assembled with the positioning guide pillar (6) to complete the assembly of the fixed plate (2) and the base (1). Finally, the assembly of the gluing device is completed, and the gluing device is required to be able to be opened flexibly without being stuck. Step (ii) places the special-shaped metal sealing ring onto the middle mold core (3) through the cylindrical through hole (10), requiring the special-shaped metal sealing ring to fit the upper end surface of the middle mold core (3), and the outer cylindrical surface of the special-shaped metal sealing ring to be interference-fitted with the outer circle of the locking washer (4), so as to achieve the positioning of the special-shaped metal sealing ring and complete the fixing and clamping of the special-shaped metal sealing ring while preventing the special-shaped metal sealing ring from rotating during the gluing process, and then perform the gluing operation on the current upper surface of the special-shaped metal sealing ring; Step (3) After the glue coating operation on one end face of the special-shaped metal sealing ring is completed, the fixed plate (2) is removed from the base (1), and the upper and lower end faces are flipped 180 degrees by holding the fixed plate (2), and then the fixed plate (2) is again fitted with the upper end face of the base (1) through the positioning guide column (6). The upper and lower end faces of the fixed plate (2) are both provided with locking pads (4). During the process of fitting the fixed plate (2) and the base (1), due to the clamping effect of the locking pads (4), the special-shaped metal sealing ring is flipped 180 degrees along with the fixed plate (2). At this time, the end face of the special-shaped metal sealing ring that has been glued faces downwards and fits with the upper end face of the middle mold core (3). After the fixed plate (2) is again fitted through the positioning guide column (6), the fixing plate (2) is again fixed. During the process of fitting the guide column (6) to the upper end surface of the base (1), the resistance of the middle mold core (3) to the special-shaped metal sealing ring causes the special-shaped metal sealing ring to move along the cylindrical through hole (10) on the fixed plate (2), and move from the lower end surface of the current cylindrical through hole (10) to the upper end surface of the cylindrical through hole (10), and then interfere with the outer circle of the locking washer (4) at the upper end surface to achieve the limitation and fixation of the special-shaped metal sealing ring, and finally achieve the 180° flipping of the special-shaped metal sealing ring, and move the non-glue-coated surface of the special-shaped metal sealing ring originally facing downward to the upper end surface by pushing, so that the non-glue-coated surface can be glued, and finally the gluing operation of the product is completed.

Images