A pressure maintaining device for bonding a check ring assembly and a working method thereof

Abstract

A kind of pressure maintaining device for adhesive bonding of limit ring assembly and its working method belong to the field of part production technology. The bottom plate has positioning and pressing mechanism and main supporting mechanism, the positioning and pressing mechanism is connected with the transmission mechanism, the transmission mechanism has input mechanism and is connected with the main supporting mechanism. The method is as follows: the limit ring and friction ring are placed between the retaining sleeve and the expansion block, and the pressing plate is adjusted to press the retaining sleeve; the handle is rotated to drive the main screw to rotate downward, the upper pressing head is pressed downward to contact the lower pressing head with the expansion block, the expansion block is pushed to push the limit ring and the friction ring to glue; after finishing, the handle is reversed to drive the main screw upward to drive the lower pressing head to separate from the expansion block; the expansion block is pushed inward to take down the parts. The transmission mechanism converts the downward pressure into radial force, cooperates with the positioning and pressing mechanism to realize the adhesion of the two parts and the stable radial pressure holding time, and monitors the force in real time to avoid damage to the parts caused by sudden increase of pressure.

Description

Technical Field

[0001] This invention relates to a pressure-holding device for bonding a limiting ring assembly and its working method, belonging to the field of parts manufacturing technology. Background Technology

[0002] The inner hole of the linkage gear limit ring (made of aluminum) and the outer diameter of the friction ring (made of polytetrafluoroethylene) need to be bonded together. When bonding, the adhesive surfaces need to be carefully adhered and gently pushed to remove air bubbles. Then, a contact pressure of 0.01MPa-0.05MPa is applied using a pressure fixture.

[0003] Current tooling cannot achieve complete contact between the two parts, radial application of pressure, and the duration of stable radial pressure. Summary of the Invention

[0004] To address the problems existing in the background art, the present invention provides a pressure-holding device for bonding limit ring components and its working method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure-holding device for bonding a limiting ring assembly, comprising a chassis, a positioning and pressing mechanism, a main support mechanism, a transmission mechanism, and an input mechanism; the upper end of the chassis is provided with the positioning and pressing mechanism and the main support mechanism, the upper end of the positioning and pressing mechanism is connected to the lower end of the transmission mechanism, the upper end of the transmission mechanism is provided with the input mechanism, and the transmission mechanism is connected to the main support mechanism.

[0006] The present invention discloses a method for operating a pressure-holding device for bonding a limiting ring assembly, the method comprising the following steps:

[0007] S1: Place the limit ring and friction ring between the retaining sleeve and the expansion block, and adjust the pressure plate to press the retaining sleeve tightly;

[0008] S2: Turn the handle to drive the main screw to rotate via the handwheel;

[0009] S3: The main screw rotates while moving downwards;

[0010] S4: The main screw moves downward, causing the upper pressure head to move downward, pressing the sensor, adapter sleeve, and lower pressure head together to move downward;

[0011] S5: After the downward pressing head moves downward, it contacts the expansion block, pushing the expansion block to slide horizontally and push the limiting ring and friction ring to bond together;

[0012] S6: After the gluing is completed, turn the handle in the opposite direction to drive the main screw to move upward;

[0013] S7: When the main screw moves upward, it drives the adapter sleeve to move upward through the action of the support block and the long screw;

[0014] S8: The upward movement of the adapter sleeve causes the lower pressure head to separate from the expansion block;

[0015] S9: Push the expansion block inward to remove the part.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The transmission mechanism of this invention converts downward pressure into radial force, which, together with the positioning and clamping mechanism, achieves full adhesion between the bonding areas of the two parts and maintains stable radial pressure for a certain period of time. At the same time, the magnitude of the applied force is monitored in real time by sensors and electronic scales to avoid damage to the parts caused by sudden increases in pressure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 yes Figure 1 AA section view;

[0020] Figure 3 yes Figure 1 BB cross-sectional view. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] A pressure-holding device for bonding a limiting ring assembly includes a chassis 23, a positioning and pressing mechanism, a main support mechanism, a transmission mechanism, and an input mechanism. The upper end of the chassis 23 is provided with the positioning and pressing mechanism and the main support mechanism. The upper end of the positioning and pressing mechanism is connected to the lower end of the transmission mechanism. The upper end of the transmission mechanism is provided with the input mechanism, and the transmission mechanism is connected to the main support mechanism.

[0023] The input mechanism includes a handle 1 and a handwheel 2; the upper end of the handwheel 2 is threadedly connected to at least one handle 1, and when there is more than one handle 1, the handles 1 are evenly distributed along the circumference of the handwheel 2; the middle part of the handwheel 2 is connected to the transmission mechanism.

[0024] The transmission mechanism includes a long screw 9, a support block 10, a lower pressure head 27, an adapter sleeve 31, a sensor 32, an upper pressure head 34, a guide post 38, a guide sleeve 39, and a main screw 40. The lower end of the middle part of the handwheel 2 is fixedly connected to the upper end of the main screw 40 by screws, washers, and semi-circular keys. The main screw 40 is connected to the main support mechanism. The lower end of the outer wall of the main screw 40 is slidably connected to the support block 10 by a limiting groove, a cylindrical pin, and a washer. The lower end of the main screw 40 is fixed with the upper pressure head 34 by screws and cylindrical pins. At least two long screws 9 are evenly inserted into the edge of the support block 10, and the lower end of each long screw 9 has... The adapter sleeve 31 is fixedly connected to the adapter sleeve 31; a sensor 32 is fixed to the middle of the upper surface of the adapter sleeve 31 by screws. The sensor 32 displays the value in real time through an externally connected electronic scale. The sensor 32 is configured to cooperate with the upper pressure head 34; at least two guide posts 38 are evenly distributed and fixed at the edge of the upper surface of the adapter sleeve 31. The upper end of each guide post 38 is slidably disposed in the corresponding guide sleeve 39. Each guide sleeve 39 is connected to the main support mechanism; a lower pressure head 27 is fixed to the middle of the lower surface of the adapter sleeve 31 by screws. The outer wall of the lower pressure head 27 is provided with a wedge-shaped surface. The lower pressure head 27 is configured to cooperate with the positioning and pressing mechanism.

[0025] The main support mechanism includes an upper support plate 8 and tie rods 44. The upper surface of the chassis 23 is fixedly connected to the lower ends of at least three vertically evenly distributed tie rods 44 along its circumference by screws and spring washers. The upper end of each tie rod 44 is fixedly connected to the upper support plate 8 by screws and washers. The middle part of the upper support plate 8 is threadedly connected to the main screw 40. The lower surface of the upper support plate 8 is provided with a plurality of evenly distributed mounting holes that penetrate its thickness direction along its circumference. Each mounting hole is fixedly connected to the corresponding guide sleeve 39.

[0026] The main screw 40 and the upper support plate 8 are connected by a cylindrical pin and a nut, and a screw sleeve 42 is provided to reduce the wear when the upper support plate 8 and the main screw 40 are screwed together.

[0027] The positioning and clamping mechanism includes a lower screw 13, a pressure plate 14, a support 16, a retaining sleeve 24, guide pins 25, and an expansion block 26. The upper surface of the chassis 23 is provided with at least two sets of guide pins 25, at least two lower screws 13, and at least two supports 16 sequentially from the inside out. Each set of guide pins 25 includes at least two guide pins 25. The guide pins 25, lower screws 13, and supports 16 are all evenly distributed along the circumference of the chassis 23. Each set of guide pins 25 is located within the waist-shaped groove of the corresponding expansion block 26. Each expansion block 26 is disposed on the outside of the lower pressure head 27, and each expansion block 26 is provided with a wedge-shaped surface 2 that mates with the wedge-shaped surface 1 of the lower pressure head 27 at one end; a retaining sleeve 24 is fitted on the outside of the expansion block 26, and both the retaining sleeve 24 and the expansion block 26 are placed on the chassis 23; each support 16 is provided with a pressure plate 14 at its upper end, and each pressure plate 14 is fitted on the outside of the corresponding lower screw 13 through a waist-shaped groove thereon, and each pressure plate 14 is pressed against the upper end face of the retaining sleeve 24.

[0028] The present invention discloses a method for operating a pressure-holding device for bonding a limiting ring assembly, the method comprising the following steps:

[0029] S1: Place the limiting ring and friction ring between the retaining sleeve 24 and the expansion block 26, and adjust the pressure plate 14 to press the retaining sleeve 24 tightly;

[0030] S2: Turn handle 1, which drives the main screw 40 to rotate via handwheel 2;

[0031] S3: The main screw 40 rotates while moving downwards;

[0032] S4: The main screw 40 moves downward, driving the upper pressure head 34 to move downward, pressing the sensor 32, the adapter sleeve 31, and the lower pressure head 27 to move downward together; the value of the sensor 32 can be converted to observe the magnitude of the pressure input by the operator in real time.

[0033] S5: After the downward pressure head 27 moves downward, it contacts the expansion block 26, pushing the expansion block 26 to slide horizontally and push the limiting ring and friction ring to bond together; this realizes the conversion of downward pressure into radial force, and realizes full contact between the two parts and the implementation of the bonding joint and radial pressure;

[0034] S6: After the gluing is completed, turn the handle 1 in the opposite direction to drive the main screw 40 to move upward;

[0035] S7: When the main screw 40 moves upward, it drives the adapter sleeve 31 to move upward through the action of the support block 10 and the long screw 9;

[0036] S8: The upward movement of the adapter sleeve 31 causes the downward pressure head 27 to separate from the expansion block 26;

[0037] S9: Push the expansion block 26 inward to remove the part.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressure-holding device for bonding a limiting ring assembly, characterized in that: The system includes a chassis (23), a positioning and clamping mechanism, a main support mechanism, a transmission mechanism, and an input mechanism. The upper end of the chassis (23) is provided with a positioning and clamping mechanism and a main support mechanism. The upper end of the positioning and clamping mechanism is connected to the lower end of the transmission mechanism. The upper end of the transmission mechanism is provided with an input mechanism, and the transmission mechanism is connected to the main support mechanism. The transmission mechanism includes a long screw (9), a support block (10), a lower pressure head (27), an adapter sleeve (31), a sensor (32), an upper pressure head (34), a guide post (38), a guide sleeve (39), and a main screw (40). The input mechanism includes a handwheel (2). The lower end of the middle part of the handwheel (2) is connected to the upper end of the main screw (40). The main screw (40) is fixedly connected to the main support mechanism. The lower end of the outer wall of the main screw (40) is slidably connected to the support block (10). An upper pressure head (34) is fixed to the lower end of the main screw (40). At least two long screws (9) are inserted into the support block (10). The lower end of each long screw (9) is fixedly connected to the adapter sleeve (31). A sensor (32) is fixed to the upper surface of the adapter sleeve (31). The sensor (32) is configured to cooperate with the upper pressure head (34). At least two guide posts (38) are fixed to the edge of the upper surface of the adapter sleeve (31). The upper end of each guide post (38) is slidably disposed in the corresponding guide sleeve (39). All are connected to the main support mechanism; a lower pressure head (27) is fixed in the middle of the lower surface of the adapter sleeve (31), the outer wall of the lower pressure head (27) is provided with a wedge-shaped surface, and the lower pressure head (27) is configured to cooperate with the positioning and pressing mechanism; the main support mechanism includes an upper support plate (8) and a pull rod (44); the upper surface of the chassis (23) is fixedly connected to the lower end of at least three vertically arranged pull rods (44), the upper end of each pull rod (44) is fixedly connected to the upper support plate (8), the middle part of the upper support plate (8) is threadedly connected to the main screw (40), and the lower surface of the upper support plate (8) is fixedly connected to the guide sleeve (39); the positioning and pressing mechanism includes a lower screw (13) and a pressure plate (14). The chassis (23) is provided with at least two sets of guide pins (25), at least two lower screws (13) and at least two supports (16) from the inside to the outside. Each set of guide pins (25) is provided in the waist-shaped groove of the corresponding expansion block (26). Each expansion block (26) is provided on the outside of the lower pressure head (27). Each expansion block (26) is provided with a wedge-shaped surface two that cooperates with the wedge-shaped surface one of the lower pressure head (27) at one end adjacent to the lower pressure head (27). The outer side of the expansion block (26) is fitted with a retainer (24). The retainer (24) and the expansion block (26) are both placed on the chassis (23).Each of the supports (16) has a pressure plate (14) at its upper end. Each pressure plate (14) is fitted onto the outside of the corresponding lower screw (13) through a slotted groove. Each pressure plate (14) is pressed against the upper end face of the retaining sleeve (24).

2. The pressure-holding device for bonding a limiting ring assembly according to claim 1, characterized in that: The input mechanism also includes a handle (1); the upper end of the handwheel (2) is connected to at least one handle (1), and the middle part of the handwheel (2) is connected to the transmission mechanism.

3. The pressure-holding device for bonding a limiting ring assembly according to claim 2, characterized in that: A threaded sleeve (42) is provided between the main screw (40) and the upper support plate (8).

4. A method for operating the pressure-holding device for bonding a limiting ring assembly according to any one of claims 1-3, characterized in that: The method includes the following steps: S1: Place the limiting ring and friction ring between the retaining sleeve (24) and the expansion block (26), and adjust the pressure plate (14) to press the retaining sleeve (24). S2: Turn the handle (1) to drive the main screw (40) to rotate via the handwheel (2); S3: The main screw (40) rotates while moving downwards; S4: The main screw (40) moves downward, causing the upper pressure head (34) to move downward, pressing the sensor (32), the adapter sleeve (31), and the lower pressure head (27) together to move downward; S5: After the downward pressing head (27) moves downward, it contacts the expansion block (26), pushing the expansion block (26) to slide horizontally and push the limiting ring and friction ring to bond together; S6: After the gluing is completed, rotate the handle (1) in the opposite direction to drive the main screw (40) to move upward; S7: When the main screw (40) moves upward, it drives the adapter sleeve (31) to move upward through the action of the support block (10) and the long screw (9); S8: The adapter sleeve (31) moves upward, causing the pressure head (27) to separate from the expansion block (26); S9: Push the expansion block (26) inward to remove the part.

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