Pump cover punching tool of high-lift circulating pump

Abstract

The utility model relates to the technical field of centrifugal pump production, in particular to a pump cover punching tool of a high-lift circulating pump, which mainly comprises an inner clamping component, a water inlet hole punch forming component and a mounting hole punch forming component. The mounting hole punch forming assembly is used for punching a mounting hole in a mounting convex plate of a pump cover blank, the inner clamping assembly is used for providing inner clamping support for the pump cover blank, and bearing pressure is provided in the water inlet hole punch forming and mounting hole punch forming processes, in this way, the cover body deformation condition can be avoided in the punching machining process, and the service life of the pump cover blank is prolonged. And the requirement of punching the lateral water inlet hole and the axial mounting hole at the same time is met.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump manufacturing technology, and in particular to a punching tool for the pump cover of a high-lift circulating pump. Background Technology

[0002] High-lift circulating pumps are specially designed pumps primarily used to achieve efficient circulation and transport of liquids over high vertical distances or long pipeline systems. Here are some key functions of high-lift circulating pumps: 1) Lifting liquid height: High lift is its most significant feature, enabling it to draw liquid from a low position and lift it to a higher one, overcoming the natural resistance of gravity to liquid flow and meeting the need for increased liquid height in specific applications. 2) Promoting system circulation: In closed-loop systems, such as cooling systems, hot water heating systems, or liquid circulation systems in industrial processes, high-lift circulating pumps ensure continuous and stable circulation of liquid within the system, guaranteeing efficient system operation. Through continuous circulation, the system can maintain stable temperature, pressure, or other process conditions. 3) Enhancing fluid pressure: In addition to increasing height, high-lift circulating pumps also increase the outlet pressure of the fluid, which is particularly important for situations requiring liquid transport over long distances or overcoming significant pipeline resistance. The enhanced fluid pressure ensures that the liquid can smoothly reach the target location and meet usage requirements. 4) Energy Saving and Efficiency Improvement: Modern high-lift circulating pumps typically employ highly efficient and energy-saving designs, such as variable frequency speed control technology, which allows for adjustment of the pump's operating speed according to actual needs, thereby optimizing energy consumption and reducing unnecessary energy waste. This not only helps reduce operating costs but also aligns with the environmental protection concept of sustainable development.

[0003] High-lift circulating pumps require a pump cover punching fixture to punch holes in the pump cover during the production process. Traditional high-lift circulating pump cover punching fixtures have shortcomings: firstly, the pump cover body is relatively thin, making it prone to deformation during punching; secondly, they cannot simultaneously punch both the lateral inlet holes and the axial mounting holes. Therefore, it is necessary to optimize and improve the traditional high-lift circulating pump cover punching fixture. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and to provide a punching fixture for the pump cover of a high-lift circulating pump.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A punching fixture for the pump cover of a high-lift circulating pump, the punching fixture includes an inner clamping assembly, an inlet hole punching and forming assembly, and a mounting hole punching and forming assembly.

[0007] The pump cover blank includes a cylindrical cover body, and a plurality of mounting protrusions are provided on the inner side of one end of the cylindrical cover body along the circumferential direction;

[0008] The inner clamping assembly is used to clamp the pump cover blank. The water inlet hole stamping and forming assembly and the mounting hole stamping and forming assembly are arranged in a ring-shaped staggered pattern around the inner clamping assembly. The water inlet hole stamping and forming assembly is used to stamp and process water inlet holes on the cylindrical cover body of the pump cover blank. The mounting hole stamping and forming assembly is used to stamp and process mounting holes on the mounting protrusion of the pump cover blank.

[0009] Furthermore, in the aforementioned high-lift circulating pump cover punching fixture, the inner clamping assembly includes a base, a turntable, a drive gear, a drive motor, a movable support, and an inner support block. The base has an internal movable cavity to facilitate the rotation of the turntable. The inner side of the turntable is provided with a drive gear for driving its rotation. The drive gear is driven to rotate by a drive motor fixed to the bottom side of the base. The turntable has a spiral push groove. The upper side of the base has multiple radially staggered sliding grooves and positioning protrusions along the circumference. The movable support is installed in the radial sliding grooves and spiral push grooves. The exposed end of the movable support is fixed with an inner support block. The outer side of the inner support block has a lateral punching clearance groove. The upper side of the positioning protrusion has a vertical punching clearance groove.

[0010] Furthermore, in the above-mentioned high-lift circulating pump cover punching fixture, the outer diameter of the base matches the inner diameter of the cylindrical cover, and the outer side shape of the inner support block matches the inner cavity wall shape of the cylindrical cover.

[0011] Furthermore, in the above-mentioned high-lift circulating pump cover punching fixture, the movable support is composed of a slide head that is slidably limited in a spiral push groove and a slide plate that is slidably limited in a radial slide groove.

[0012] Furthermore, in the above-mentioned high-lift circulating pump cover punching fixture, the upper side of the positioning protrusion is provided with a positioning groove that matches the shape of the mounting protrusion.

[0013] Furthermore, in the above-mentioned high-lift circulating pump cover punching fixture, the pump cover blank is provided with three mounting protrusions, and the number of the water inlet hole stamping forming assembly and the mounting hole stamping forming assembly are three respectively.

[0014] Furthermore, in the pump cover punching fixture of the above-mentioned high-lift circulating pump, the water inlet hole stamping forming assembly includes a base plate, a horizontal stamping push rod, a first mounting plate and a first punch rod. The horizontal stamping push rod is mounted on the base plate, and the movable end of the horizontal stamping push rod is mounted with a plurality of first punch rods for forming water inlet holes via the first mounting plate.

[0015] Furthermore, in the above-mentioned high-lift circulating pump cover punching fixture, the mounting hole stamping forming assembly includes a channel plate, a lead screw motor, a horizontal lead screw, a push plate, a vertical stamping push rod, a second mounting plate, and a second punch rod. The channel plate is movably supported by a horizontal lead screw driven to rotate by the lead screw motor. The push plate has a lead screw hole that cooperates with the horizontal lead screw. One end of the push plate slides against the channel plate, and the other end of the push plate is fixed with a vertical stamping push rod. The movable end of the vertical stamping push rod is mounted with several second punch rods for forming mounting holes via the second mounting plate.

[0016] The beneficial effects of this utility model are:

[0017] This utility model has a reasonable structural design, mainly consisting of an inner clamping component, a water inlet hole stamping and forming component, and a mounting hole stamping and forming component. The water inlet hole stamping and forming component is used to stamp and process the water inlet hole on the cylindrical cover body of the pump cover blank. The mounting hole stamping and forming component is used to stamp and process the mounting hole on the mounting protrusion of the pump cover blank. The inner clamping component provides internal clamping support for the pump cover blank and provides pressure during the water inlet hole stamping and forming and mounting hole stamping and forming processes. In this way, the cover body deformation can be avoided during the punching process, and the requirement of simultaneously punching and processing lateral water inlet holes and axial mounting holes can be met.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the pump cover structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal clamping component in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the turntable in this utility model;

[0024] Figure 5 This is a schematic diagram of the water inlet hole stamping assembly in this utility model;

[0025] Figure 6This is a schematic diagram of the mounting hole stamping forming component in this utility model;

[0026] Figure 7 This is a schematic diagram showing the position of the second punch in this utility model;

[0027] In the attached diagram, the components represented by each number are as follows:

[0028] 1-Inner clamping assembly, 101-Base, 102-Radial slide groove, 103-Modible support, 104-Inner support block, 105-Lateral punching clearance groove, 106-Positioning protrusion, 107-Vertical punching clearance groove, 108-Turntable, 109-Spiral push groove;

[0029] 2-Water inlet hole stamping assembly, 201-Base plate, 202-Horizontal stamping push rod, 203-First mounting plate, 204-First punch;

[0030] 3- Mounting hole stamping assembly, 301- Channel plate, 302- Screw motor, 303- Horizontal screw, 304- Push plate, 305- Vertical stamping push rod, 306- Second mounting plate, 307- Second punch rod;

[0031] 4-Pump cover, 401-Cylindrical cover, 402-Mounting protrusion, 403-Water inlet hole, 404-Mounting hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-7 As shown, this embodiment provides a pump cover punching fixture for a high-lift circulating pump. The pump cover punching fixture includes an inner clamping assembly 1, an inlet hole punching and forming assembly 2, and a mounting hole punching and forming assembly 3.

[0034] In this embodiment, the pump cover blank includes a cylindrical cover body 401, and a plurality of mounting protrusions 402 are provided on the inner side of one end of the cylindrical cover body 401 along the circumferential direction.

[0035] In this embodiment, the inner clamping component 1 is used to clamp the pump cover blank. The water inlet hole stamping and forming component 2 and the mounting hole stamping and forming component 3 are arranged in a ring-shaped staggered pattern around the inner clamping component 1. The water inlet hole stamping and forming component 2 is used to stamp and process the water inlet hole 403 on the cylindrical cover body 401 of the pump cover blank. The mounting hole stamping and forming component 3 is used to stamp and process the mounting hole 404 on the mounting protrusion 402 of the pump cover blank. After processing, the pump cover 4 is obtained.

[0036] In this embodiment, the inner clamping assembly 1 includes a base 101, a turntable 108, a drive gear 111, a drive motor, a movable support 103, and an inner support block 104. The base 101 has an internal cavity for facilitating the rotation of the turntable 108. The inner side of the turntable 108 is provided with a drive gear 111 for rotating it. The drive gear 111 is driven to rotate by a drive motor fixed to the bottom side of the base 101. The inner edge of the turntable 108 has a toothed groove that meshes with the drive gear 111. A spiral push groove 109 is formed on the turntable 108. The upper side of the base 101 has multiple radially staggered sliding grooves 102 and positioning protrusions 106 along its circumference. A movable support 103 is installed in both the radially sliding grooves 102 and the spiral push grooves 109. An inner support block 104 is fixed to the exposed end of the movable support 103. The outer side of the inner support block 104 is provided with a lateral punching clearance groove 105, and the upper side of the positioning protrusion 106 is provided with a vertical punching clearance groove 107.

[0037] In this embodiment, the outer diameter of the base 101 matches the inner diameter of the cylindrical cover 401, and the outer surface shape of the inner support block 104 matches the inner cavity wall shape of the cylindrical cover 401.

[0038] In this embodiment, the movable support 103 is composed of a slide head that is slidably limited in the spiral push groove 109 and a slide plate that is slidably limited in the radial slide groove 102.

[0039] In this embodiment, the upper side of the positioning protrusion 106 is provided with a positioning groove that matches the shape of the mounting protrusion 402.

[0040] In this embodiment, the pump cover blank is provided with three mounting protrusions 402, and the number of the water inlet hole stamping forming assembly 2 and the mounting hole stamping forming assembly 3 are three each.

[0041] In this embodiment, the water inlet hole stamping forming assembly 2 includes a base plate 201, a horizontal stamping push rod 202, a first mounting plate 203 and a first punch 204. The horizontal stamping push rod 202 is mounted on the base plate 201, and a plurality of first punches 204 for forming water inlet holes 403 are mounted on the movable end of the horizontal stamping push rod 202 via the first mounting plate 203.

[0042] In this embodiment, the mounting hole stamping forming assembly 3 includes a channel plate 301, a lead screw motor 302, a horizontal lead screw 303, a push plate 304, a vertical stamping push rod 305, a second mounting plate 306, and a second punch 307. The channel plate 301 is movably supported by the horizontal lead screw 303, which is driven to rotate by the lead screw motor 302. The push plate 304 has a lead screw hole that cooperates with the horizontal lead screw 303. One end of the push plate 304 slides against the channel plate 301, and the other end of the push plate 304 is fixed with a vertical stamping push rod 305. The movable end of the vertical stamping push rod 305 is mounted with a plurality of second punches 307 for forming mounting holes 404 via the second mounting plate 306.

[0043] A specific application of this embodiment is as follows: This tooling mainly consists of an inner clamping component 1, a water inlet hole stamping and forming component 2, and a mounting hole stamping and forming component 3. The water inlet hole stamping and forming component 2 is used to stamp and process the water inlet hole 403 on the cylindrical cover body 401 of the pump cover blank. The mounting hole stamping and forming component 3 is used to stamp and process the mounting hole 404 on the mounting protrusion 402 of the pump cover blank. The inner clamping component 1 provides inner clamping support for the pump cover blank and provides pressure during the stamping and forming of the water inlet hole 403 and the mounting hole 404. In this way, the deformation of the cover body can be avoided during the punching process, and the requirement of simultaneously realizing the punching and forming of the lateral water inlet hole and the axial mounting hole can be met.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A punching fixture for the pump cover of a high-lift circulating pump, characterized in that, The pump cover punching fixture includes an internal clamping assembly, an inlet hole punching assembly, and a mounting hole punching assembly. The pump cover blank includes a cylindrical cover body, and a plurality of mounting protrusions are provided on the inner side of one end of the cylindrical cover body along the circumferential direction; The inner clamping assembly is used to clamp the pump cover blank. The water inlet hole stamping and forming assembly and the mounting hole stamping and forming assembly are arranged in a ring-shaped staggered pattern around the inner clamping assembly. The water inlet hole stamping and forming assembly is used to stamp and process water inlet holes on the cylindrical cover body of the pump cover blank. The mounting hole stamping and forming assembly is used to stamp and process mounting holes on the mounting protrusion of the pump cover blank.

2. The punching fixture for the pump cover of the high-lift circulating pump according to claim 1, characterized in that, The internal clamping assembly includes a base, a turntable, a drive gear, a drive motor, a movable support member, and an internal support block. The base has an internal cavity for facilitating the rotation of the turntable. The inner side of the turntable has a drive gear for rotating it. The drive gear is driven to rotate by a drive motor fixed to the bottom side of the base. The turntable has a spiral push groove. The upper side of the base has multiple radially staggered grooves and positioning protrusions along the circumference. The movable support member is installed in the radial grooves and spiral push grooves. The exposed end of the movable support member is fixed with an internal support block. The outer side of the internal support block has a lateral punching clearance groove. The upper side of the positioning protrusion has a vertical punching clearance groove.

3. The punching fixture for the pump cover of the high-lift circulating pump according to claim 2, characterized in that, The outer diameter of the base matches the inner diameter of the cylindrical cover, and the outer surface shape of the inner support block matches the inner cavity wall shape of the cylindrical cover.

4. The punching fixture for the pump cover of the high-lift circulating pump according to claim 3, characterized in that, The movable support consists of a slide head that is slidably limited in a spiral groove and a slide plate that is slidably limited in a radial groove.

5. The punching fixture for the pump cover of the high-lift circulating pump according to claim 4, characterized in that, The upper side of the positioning protrusion is provided with a positioning groove that matches the shape of the mounting protrusion.

6. The punching fixture for the pump cover of the high-lift circulating pump according to claim 5, characterized in that, The pump cover blank has three mounting protrusions, and the number of the water inlet hole stamping forming assembly and the mounting hole stamping forming assembly are three each.

7. The punching fixture for the pump cover of the high-lift circulating pump according to claim 6, characterized in that, The water inlet hole stamping forming assembly includes a base plate, a horizontal stamping push rod, a first mounting plate, and a first punch rod. The horizontal stamping push rod is mounted on the base plate, and the movable end of the horizontal stamping push rod is mounted with a plurality of first punch rods for forming water inlet holes via the first mounting plate.

8. The punching fixture for the pump cover of the high-lift circulating pump according to claim 7, characterized in that, The mounting hole stamping forming assembly includes a channel plate, a lead screw motor, a horizontal lead screw, a push plate, a vertical stamping push rod, a second mounting plate, and a second punch. The channel plate movably supports a horizontal lead screw that is driven to rotate by the lead screw motor. The push plate has a lead screw hole that mates with the horizontal lead screw. One end of the push plate slides against the channel plate, and the other end of the push plate is fixed with a vertical stamping push rod. The movable end of the vertical stamping push rod is mounted with a plurality of second punches for forming mounting holes via the second mounting plate.

Images