Multifunctional water pump capping device

Abstract

The present invention discloses a multifunctional water pump capping device, including a rotary servo press, the bottom end of the pressure rod of which is provided with a fixed seat and a pre-stressing rivet assembly that can move synchronously with the fixed seat, the pre-stressing rivet assembly includes a rivet mechanism and a pre-stressing mechanism connected by a connecting mechanism, the pre-stressing mechanism includes a pre-stressing cylinder fixed on the fixed seat, and a pre-stressing center axis driven by the pre-stressing cylinder to generate pre-stress, the rivet mechanism includes a rivet head driven to rotate by the pressure rod, the rivet head is sleeved on the outside of the pre-stressing center axis and the two can rotate relative to each other, the connecting mechanism at least includes a connecting shaft and a connecting piece, and the connecting piece axially fixes the connecting shaft and the pre-stressing center axis. The present invention cleverly combines the rivet mechanism and the pre-stressing mechanism into one through the connecting mechanism, so that rivets can be performed while pre-stressing the water pump cap, simplifying the processing flow and greatly improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of water pump installation, and in particular to a multifunctional water pump sealing device. Background Art

[0002] A water pump is a machine that transports liquids or pressurizes liquids. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals, etc. It can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of water pump performance include flow rate, suction head, head, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into positive displacement water pumps, vane pumps and other types. Positive displacement pumps use the change in the volume of their working chambers to transfer energy; vane pumps use the interaction between the rotating blades and water to transfer energy. There are centrifugal pumps, axial flow pumps and mixed flow pumps.

[0003] During the installation of the water pump, it is necessary to assemble a cover for the water pump. After assembly, the cover of the water pump needs to be riveted to the edge of the connecting sleeve. However, the cover is an irregular shape, and the pre-pressing of the cover cannot be rotated during the riveting process. Therefore, the assembly mechanism of the water pump cover usually requires two separate mechanisms, pre-pressing and riveting, which will lead to low assembly efficiency of the water pump cover. At the same time, because the assembly mechanism is large in size, there will be space waste. Therefore, how to efficiently install the water pump cover is an urgent problem to be solved. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a multifunctional water pump cover device.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A multifunctional water pump capping device includes a rotary servo press, a pressure rod of which the bottom end is provided with a fixed seat and a pre-stressing rivet assembly which can move synchronously with the fixed seat, the pre-stressing rivet assembly includes a rivet mechanism and a pre-stressing mechanism connected by a connecting mechanism, the pre-stressing mechanism includes a pre-stressing cylinder fixed on the fixed seat, and a pre-stressing center axis driven by the pre-stressing cylinder to generate pre-stressing force, the rivet mechanism includes a rivet head driven to rotate by the pressure rod, the rivet head is sleeved on the outside of the pre-stressing center axis and the two can rotate relative to each other, the connecting mechanism at least includes a connecting shaft and a connecting piece, the connecting piece axially fixes the connecting shaft and the pre-stressing center axis, the pre-stressing force generated by the pre-stressing cylinder is transmitted to the pre-stressing center axis through the connecting shaft, and the pressure rod drives the rivet head to rotate while driving the connecting shaft to rotate relative to the pre-stressing center axis.

[0007] Preferably, the connection mechanism further comprises a connection sleeve with a hollow interior, the top of the connection sleeve is fixed to the pressure rod, and the bottom of the connection sleeve is fixed to the rivet head.

[0008] Preferably, a first connecting plate is fixedly provided at the bottom of the connecting sleeve, a second connecting plate is fixedly provided at the top of the rivet head, and the lower bottom surface of the first connecting plate and the upper surface of the second connecting plate are fixedly connected.

[0009] Preferably, first bearings for riveting are evenly distributed on the bottom of the riveted joint.

[0010] Preferably, the connecting shaft is arranged inside the connecting sleeve, a connecting rod is radially inserted into the connecting shaft, and a free end of the connecting rod extends out of the outer circumference of the connecting shaft and passes through the connecting sleeve.

[0011] Preferably, the connecting sleeve is provided with a through hole penetrating through its outer wall in a radial direction, the free end of the connecting rod passes through the through hole and extends out, and the diameter of the through hole is larger than the outer diameter of the connecting rod.

[0012] Preferably, there are four connecting rods, which are inserted into the upper part of the connecting rod in a cross shape.

[0013] Preferably, the cylinder shaft of the pre-stressing cylinder is fixed with a connecting seat, the connecting seat sleeve is arranged on the outside of the connecting sleeve, and the free end of the connecting rod is sleeved with a needle bearing. The free end of the connecting rod extends into the connecting seat so that the needle bearing can rotate in the receiving groove of the connecting seat, and the receiving groove is a circumferential groove.

[0014] Preferably, the fixing seat sleeve is arranged on the outer periphery of the connecting sleeve, and the two are connected via a second bearing.

[0015] Preferably, an L-shaped fixing rod is fixedly connected to the bottom of the fixing seat, a circumferential groove through which the fixing rod can pass is provided on the side wall of the rivet joint, and an extended end of the fixing rod passes through the circumferential groove and is fixedly connected to the pre-stressing center axis.

[0016] Preferably, the connecting member is in an inverted T-shape, the top of the pre-stressing central axis has a groove matching the head of the connecting member, and there is a gap between the head of the connecting member and the inner wall of the groove.

[0017] Preferably, the bottom of the pre-stressing central axis has a pre-stressing plate, and the pre-stressing plate protrudes from the rivet joint.

[0018] Preferably, the rotary servo press, the connecting mechanism, the pre-pressing central axis, and the riveting head are all coaxially arranged.

[0019] The beneficial effects of the present invention are mainly reflected in: the riveting mechanism and the pre-pressing mechanism are cleverly combined into one through the connecting mechanism, so that the pre-pressing force is always generated when the water pump is riveted, the riveting effect is guaranteed, and the defective rate is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0021] Figure 1 : A schematic diagram of an embodiment of the present invention;

[0022] Figure 2 : A cross-sectional view of an embodiment of the present invention;

[0023] Figure 3 : Figure 2 A magnified schematic diagram of part A;

[0024] Figure 4 : Partial schematic diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all included in the protection scope of the present invention.

[0026] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0027] like Figures 1 to 4As shown, the present invention discloses a multifunctional water pump capping device, including a rotary servo press 1, on the bottom end of which a pressure rod 101 is provided with a fixing seat 10 and a pre-pressing rivet assembly which can move synchronously therewith, and a group of connecting columns are provided between the bottom end of the pressure rod 101 and the fixing seat 10 to improve the stability of the connection between the two. The pre-stressing rivet assembly includes a rivet mechanism and a pre-stressing mechanism connected by a connecting mechanism 5, the pre-stressing mechanism includes a pre-stressing cylinder 3 fixed on the fixing seat 10, and a pre-stressing center axis 4 driven by the pre-stressing cylinder 3 to generate pre-stressing force, the rivet mechanism includes a rivet head 2 driven to rotate by the pressure rod 101, the rivet head 2 is sleeved on the outside of the pre-stressing center axis 4 and the two can rotate relative to each other, the connecting mechanism 5 at least includes a connecting shaft 502 and a connecting member 504, the connecting member 504 axially fixes the connecting shaft 502 and the pre-stressing center axis 4, the pre-stressing force generated by the pre-stressing cylinder 3 is transmitted to the pre-stressing center axis 4 through the connecting shaft 502, and the pressure rod 101 drives the rivet head 2 to rotate while driving the connecting shaft 502 to rotate relative to the pre-stressing center axis 4.

[0028] The rotary servo press 1, connecting mechanism 5, pre-pressing center shaft 4, and riveting head 2 in the present invention are all coaxially arranged so that the servo press 1 can drive the connecting mechanism 5, pre-pressing center shaft 4, and riveting head 2 to synchronously descend to the surface of the workpiece to be processed.

[0029] like Figure 3 As shown, the connection mechanism 5 also includes an internally hollow connection sleeve 501, the top of the connection sleeve 501 is fixed to the pressure rod 101, and the bottom of the connection sleeve 501 is fixed to the rivet head 2. Specifically, a first connection plate 8 is fixed to the bottom of the connection sleeve 501, and a second connection plate 9 is fixed to the top of the rivet head 2, and the lower bottom surface of the first connection plate 8 and the upper surface of the second connection plate 9 are fixedly connected. In this preferred embodiment, the connection sleeve 501 and the first connection plate 8, the rivet head 2 and the second connection plate 9 are all connected by bolts. In other embodiments, the connection sleeve 501 and the first connection plate 8, the rivet head 2 and the second connection plate 9 can be connected by other suitable methods, such as clamping, gluing, etc., or can be formed as one piece.

[0030] In order to facilitate the rotation of the riveting head 2, first bearings 202 for riveting are evenly distributed at the bottom of the riveting head 2. The first bearings 202 are vertically arranged, and their rolling surfaces are in contact with the surface of the workpiece to be processed.

[0031] like Figure 3As shown, the connecting shaft 502 is arranged inside the connecting sleeve 501, and a connecting rod 503 is inserted in the radial direction of the connecting shaft 502, and the free end of the connecting rod 503 extends out of the outer periphery of the connecting shaft 502 and passes through the connecting sleeve 501. In other feasible embodiments, the connecting rod 503 can also be fixedly connected to the connecting shaft 502 in other suitable ways, such as adhesive bonding, or can be formed integrally with the connecting shaft 502. In this preferred embodiment, there are four connecting rods 503, which are inserted in the upper part of the connecting rod 503 in a cross shape. Such a structural arrangement allows the connecting sleeve 501 to rotate when driven by the pressure rod 101, and the connecting rod 503 will drive the connecting shaft 502 to rotate synchronously, and the connecting shaft 502 drives the connecting member 504 to rotate synchronously.

[0032] Furthermore, the connecting sleeve 501 is provided with a through hole 505 extending through its outer wall in the radial direction, and the free end of the connecting rod 503 passes through the through hole 505 and extends out. The diameter of the through hole 505 is larger than the outer diameter of the connecting rod 503, and such a structural arrangement facilitates the connecting rod 503 to pass through the connecting shaft 502.

[0033] The cylinder shaft 301 of the pre-stressing cylinder 3 is fixed with a connecting seat 6, and the connecting seat 6 is sleeved on the outside of the connecting sleeve 501. The free ends of the connecting rods 503 are sleeved with needle bearings 7. The free ends of the connecting rods 503 extend into the connecting seat 6 so that the needle bearings 7 can rotate in the receiving groove 601 of the connecting seat 6. The receiving groove 601 is a circumferential groove. The working principle of the pre-stressing cylinder 3 driving the pre-stressing center shaft 4 to press down is as follows: the cylinder shaft 301 of the pre-stressing cylinder 3 drives the connecting seat 6 to press down, the connecting seat 6 drives the connecting rod 503 to press down synchronously, and the connecting rod 503 drives the connecting shaft 502 to press down synchronously. Due to the structure of the connecting member 504 axially fixing the connecting shaft 502 and the pre-stressing center shaft 4, the pre-stressing center shaft 4 will follow the connecting shaft 502 to press down synchronously. Since the diameter of the through hole 505 is larger than the outer diameter of the connecting rod 503 , the rotation of the connecting rod 503 is not affected by its downward movement, that is, the connecting rod 503 can rotate and press down at the same time.

[0034] In order to improve the stability of the connection between the pre-pressing center shaft 4 and the workpiece to be processed, the bottom of the pre-pressing center shaft 4 has a pre-pressing plate 402, and the diameter of the pre-pressing plate 402 is larger than the diameter of the pre-pressing center shaft 4, so as to increase the contact area between the pre-pressing plate 402 and the workpiece to be processed. In order to ensure the movement of the pre-pressing center shaft 4, the pre-pressing plate 402 protrudes from the riveting head 2.

[0035] In order to connect the connecting shaft 502 and the prestressing center shaft 4, the connecting member 504 is in an inverted T-shape, the bottom of the connecting member 504 is fixedly connected to the connecting shaft 502, the top of the prestressing center shaft 4 has a groove 401 matching the head of the connecting member 504, and there is a gap between the head of the connecting member 504 and the inner wall of the groove 401, so that the prestressing center shaft 4 and the connecting member 504 are movably connected. Such a structure can ensure that the prestressing center shaft 4 can remain fixed while the connecting member 504 rotates.

[0036] like Figure 3 , Figure 4 As shown, the fixing seat 10 is sleeved on the outer circumference of the connecting sleeve 501, and the two are connected via a second bearing 12. A through groove for the cylinder shaft 301 to move is provided inside the fixing seat 10.

[0037] In order to further prevent the pre-stressing central axis 4 from rotating, an L-shaped fixing rod 11 is fixedly connected to the bottom of the fixing seat 10, and a circumferential groove 201 through which the fixing rod 10 can pass is provided on the side wall of the rivet head 2, and the extended end of the fixing rod 11 passes through the circumferential groove 201 and is fixedly connected to the pre-stressing central axis 4. Such a structure allows the pre-stressing central axis 4 to maintain a constant relative position with the fixing seat 10 through the fixing rod 11, preventing it from rotating with the connecting member 504. The provision of the circumferential groove 201 ensures that the rotation of the rivet head 2 is not affected by the fixing rod 11.

[0038] The working principle of the present invention is:

[0039] First, driven by the rotary servo press 1 , the connecting mechanism 5 , the pre-pressing center shaft 4 , and the riveting head 2 are synchronously lowered to the surface of the workpiece.

[0040] Then, the cylinder shaft 301 of the prestressing cylinder 3 is driven downward, and the prestressing pressure generated by it is transmitted to the prestressing center shaft 4 through the connected connecting shaft 6 and the connecting mechanism 5. The prestressing center shaft 4 is pressed downward so that the prestressing plate 402 fits tightly against the surface of the workpiece to be processed to fix the workpiece.

[0041] Finally, the rotary servo press 1 rotates and drives the riveting head 2 to rotate through the connecting sleeve 501 of the connecting mechanism 5 to perform riveting.

[0042] The present invention has a simple and delicate structure, and the riveting mechanism and the pre-pressing mechanism are skillfully combined into one through the connecting mechanism 5, so that riveting can be performed while the cover of the water pump is pre-pressed, which simplifies the processing flow and greatly improves the production efficiency.

[0043] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0044] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. Multifunctional water pump capping device, characterized in that: The invention comprises a rotary servo press (1), wherein a fixing seat (10) and a pre-pressing riveting assembly which can move synchronously with the fixing seat (10) are arranged at the bottom end of a pressing rod (101), wherein the pre-pressing riveting assembly comprises a riveting mechanism and a pre-pressing mechanism connected by a connecting mechanism (5), wherein the pre-pressing mechanism comprises a pre-pressing cylinder (3) fixed on the fixing seat (10), and a pre-pressing center shaft (4) driven by the pre-pressing cylinder (3) to generate pre-pressure, wherein the riveting mechanism comprises a riveting head (2) driven to rotate by the pressing rod (101), wherein the riveting head (2) is sleeved The connecting mechanism (5) is arranged outside the pre-stressing center axis (4) and the two can rotate relative to each other. The connecting mechanism (5) at least comprises a connecting axis (502) and a connecting member (504). The connecting member (504) axially fixes the connecting axis (502) and the pre-stressing center axis (4). The pre-stressing force generated by the pre-stressing cylinder (3) is transmitted to the pre-stressing center axis (4) through the connecting axis (502). When the pressure rod (101) drives the rivet head (2) to rotate, it also drives the connecting axis (502) to rotate relative to the pre-stressing center axis (4). The connecting mechanism (5) further comprises a connecting sleeve (501) with a hollow interior, wherein the top of the connecting sleeve (501) is fixed to the pressure rod (101), and the bottom of the connecting sleeve (501) is fixed to the riveted joint (2); The connecting shaft (502) is arranged inside the connecting sleeve (501), and a connecting rod (503) is radially inserted at the top of the connecting shaft (502). The free end of the connecting rod (503) extends out of the outer circumference of the connecting shaft (502) and passes through the connecting sleeve (501). When the connecting sleeve (501) is driven to rotate by the pressure rod (101), it will synchronously drive the connecting rod (503) to rotate, and the connecting rod (503) will drive the connecting shaft (502) to rotate synchronously, and the connecting shaft (502) will drive the connecting member (504) to rotate synchronously.

2. The multifunctional water pump cover device according to claim 1, characterized in that: A first connecting plate (8) is fixedly provided at the bottom of the connecting sleeve (501), a second connecting plate (9) is fixedly provided at the top of the riveted joint (2), and the lower bottom surface of the first connecting plate (8) and the upper surface of the second connecting plate (9) are fixedly connected.

3. The multifunctional water pump cover device according to claim 2, characterized in that: First bearings (202) for riveting are evenly distributed on the bottom of the riveted joint (2).

4. The multifunctional water pump cover device according to claim 1, characterized in that: The connecting sleeve (501) is provided with a through hole (505) penetrating its outer wall in a radial direction, and the free end of the connecting rod (503) passes through the through hole (505) and extends out of the through hole, and the diameter of the through hole (505) is larger than the outer diameter of the connecting rod (503).

5. The multifunctional water pump cover device according to claim 4, characterized in that: There are four connecting rods (503) which are inserted into the upper part of the connecting shaft (502) in a cross shape.

6. The multifunctional water pump cover device according to claim 5, characterized in that: A connecting seat (6) is fixed to the cylinder shaft (301) of the pre-compression cylinder (3), and the connecting seat (6) is sleeved on the outside of the connecting sleeve (501). A needle bearing (7) is sleeved on the free end of the connecting rod (503), and the free end of the connecting rod (503) extends into the connecting seat (6) so that the needle bearing (7) can rotate in the receiving groove (601) of the connecting seat (6), and the receiving groove (601) is a circumferential groove.

7. The multifunctional water pump cover device according to claim 6, characterized in that: The fixing seat (10) is sleeved on the outer circumference of the connecting sleeve (501), and the two are connected via a second bearing (12).

8. The multifunctional water pump cover device according to claim 7, characterized in that: An L-shaped fixing rod (11) is fixedly connected to the bottom of the fixing seat (10), a circumferential groove (201) through which the fixing rod (11) can pass is provided on the side wall of the rivet joint (2), and an extended end of the fixing rod (11) passes through the circumferential groove (201) and is fixedly connected to the pre-stressing central axis (4).

9. The multifunctional water pump cover device according to claim 1, characterized in that: The connecting piece (504) is in an inverted T-shape, and the top of the pre-pressing central axis (4) has a groove (401) that matches the head of the connecting piece (504), and there is a gap between the head of the connecting piece (504) and the inner wall of the groove (401).

10. The multifunctional water pump cover device according to claim 1, characterized in that: The bottom of the pre-pressing central axis (4) is provided with a pre-pressing plate (402), and the pre-pressing plate (402) protrudes from the riveted joint (2).

11. The multifunctional water pump cover device according to claim 1, characterized in that: The rotary servo press (1), the connecting mechanism (5), the pre-pressing central axis (4), and the riveting head (2) are all coaxially arranged.

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