Water pump body outlet processing clamp

Abstract

The utility model discloses a water pump body water outlet processing clamp, include: base (1), the mounting plate (2) is vertically fixed on the base, the centering disc (3) is located one side of mounting plate, the centering disc is equipped with multistage steps, eccentric hole (4), the eccentric hole is eccentric and is set up on the last layer step of centering disc, threaded rod (5), one end of threaded rod passes through eccentric hole and is connected with mounting plate, and the other end is connected with the pressing plate (18) and the nut (19), a plurality of centering holes (6), a plurality of centering holes are set up on the last layer step of centering disc along the arc around eccentric hole, eccentric hole positioning groove (7), centering hole positioning groove (8). The utility model has the beneficial effects that the clamp can process the workpiece on the horizontal lathe, reduces the vertical lathe processing workload, can greatly shorten the processing period when the delivery time is urgent, and can also reduce the energy consumption by using smaller horizontal lathe.

Description

Technical Field

[0001] This utility model relates to the field of pump processing technology, and in particular to a jig for processing the outlet of a water pump body. Background Technology

[0002] Due to the shape characteristics of end-suction centrifugal pumps, the pump body outlet is often machined on a vertical lathe. Since vertical lathes are large and few in number, the machining tasks are heavy. Currently, there is a lack of a fixture that allows small pump bodies to be mounted on a horizontal lathe for machining, reducing the workload of the vertical lathe and achieving machining coordination.

[0003] Chinese invention patent publication number CN119566870A discloses a tooling fixture and process method for machining bearing holes in pump bodies, including: a transition plate for connecting to a CNC lathe spindle; and a clamping body mounted on the transition plate. The clamping body is divided into a first half-clamping body and a second half-clamping body arranged opposite each other, which cooperate to clamp and position the pump body to be machined. This patent addresses the machining of bearing holes in pump bodies by using turning instead of boring, resulting in fast changeover, high machining efficiency, and low cost. Utility Model Content

[0004] The technical problem to be solved by this utility model is that existing end-suction centrifugal pumps are not suitable for machining on horizontal lathes because vertical lathes are costly and the machining process is complex. Therefore, a machining fixture for the pump body outlet is provided.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water pump body outlet processing fixture, comprising: a base; a mounting plate, the mounting plate being vertically fixed to the base; a self-aligning disc, the self-aligning disc being disposed on one side of the mounting plate, the self-aligning disc having multiple steps; an eccentric hole, the eccentric hole being eccentrically opened on the uppermost step of the self-aligning disc; a threaded rod, one end of the threaded rod passing through the eccentric hole and connected to the mounting plate, the other end being connected to a pressure plate; a plurality of self-aligning holes, the plurality of self-aligning holes being opened along an arc around the eccentric hole on the uppermost step of the self-aligning disc; an eccentric hole positioning groove, the eccentric hole positioning groove being opened on the other side of the mounting plate and cooperating with one end of the threaded rod; and a self-aligning hole positioning slot, the self-aligning hole positioning slot being opened on the other side of the mounting plate and connected to one of the plurality of self-aligning holes by a bolt.

[0006] The improvement of the above solution is that an adapter plate is installed at the bottom of the mounting plate, the bottom of the adapter plate has several mounting holes, the mounting plate has a waist-shaped groove, the edge of the mounting plate has a screw hole communicating with the waist-shaped groove, the screw hole is fitted with an adjusting nut, the waist-shaped groove has a pin that cooperates with the adjusting nut, and the bottom of the pin is fixedly connected to the adapter plate.

[0007] A further improvement to the above scheme is that it also includes a counterweight plate, which is installed on the top of one end of the base and leaves a water pump clamping space between it and the self-aligning disc.

[0008] A further improvement to the above solution is that two fixing blocks located on both sides of the mounting plate are fixedly connected to the base, and fixing bolts are installed on the fixing blocks.

[0009] A further improvement to the above solution is that a reinforcing rib is fixed between the other side of the mounting plate and the substrate.

[0010] The other end of the threaded rod in the above scheme is fitted with a pressure plate and a nut.

[0011] The beneficial effects of this utility model are as follows: This fixture allows the workpiece to be machined on a horizontal lathe, reducing the workload of machining on a vertical lathe. When delivery time is tight, it can greatly shorten the processing period. Using a smaller horizontal lathe can also reduce energy consumption. Reliable fastening methods are used to fix the workpiece in each direction, ensuring that the machined parts will not loosen during rotation and guaranteeing machining accuracy. The same set of fixtures can be used for machining various pump bodies through different steps, reducing material costs and reducing tooling replacement time. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is another schematic diagram of the installation of the counterweight plate in this utility model; Figure 3 for Figure 1 Schematic diagram of the fit between the adjusting nut and the pin; Figure 4 This is a schematic diagram of the usage state of this utility model; Figure 5 This is a schematic diagram showing the usage state of this utility model from another angle; In the diagram: 1. Base, 2. Mounting plate, 3. Self-aligning disc, 4. Eccentric hole, 5. Threaded rod, 6. Self-aligning hole, 7. Eccentric hole positioning groove, 8. Self-aligning hole positioning groove, 9. Adapter plate, 10. Mounting hole, 11. Waist-shaped groove, 12. Adjusting nut, 13. Pin, 14. Counterweight plate, 15. Fixing block, 16. Fixing bolt, 17. Reinforcing rib, 18. Pressure plate, 19. Nut, 20. Pump cover mating surface, 21. Inlet, 22. Outlet. Detailed Implementation

[0013] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1-3 As shown, this utility model includes: a water pump body outlet processing fixture, comprising: a base 1; a mounting plate 2, the mounting plate being vertically fixed to the base; a self-aligning disc 3, the self-aligning disc being disposed on one side of the mounting plate, the self-aligning disc having multiple steps; an eccentric hole 4, the eccentric hole being eccentrically opened on the uppermost step of the self-aligning disc, where the uppermost step refers to the step closest to the water pump; a threaded rod 5, one end of the threaded rod passing through the eccentric hole and connecting to the mounting plate, and the other end connecting to the pressure plate 18 and the nut 19; a plurality of self-aligning holes 6, the plurality of self-aligning holes being opened along an arc around the eccentric hole on the uppermost step of the self-aligning disc; an eccentric hole positioning groove 7, the eccentric hole positioning groove being opened on the other side of the mounting plate and cooperating with one end of the threaded rod; and a self-aligning hole positioning groove 8, the self-aligning hole positioning groove being opened on the other side of the mounting plate and connected to one of the plurality of self-aligning holes by a bolt.

[0015] When using this utility model, such as Figure 4-5 As shown, a certain step of the self-aligning disc mates with the pump cover mating surface 20 of the water pump. The threaded rod passes through the pump cover mating surface and the inlet 21 of the water pump body. The inlet mating surface of the water pump body mates with the pressure plate. The outlet 22 of the water pump is perpendicular to the pump cover mating surface and the inlet. In this way, the pressure plate and the mounting plate clamp the water pump inside and fix the water pump from the top and bottom. Since the machining needs to ensure that the center of the workpiece is aligned with the lathe spindle, fine adjustment is required before fixing the water pump. Since the eccentric hole is not concentric with the self-aligning disc, the self-aligning disc is rotated by fixing the eccentric hole on the positioning groove. The self-aligning disc drives the water pump to rotate through the step that mates with the water pump, so that different self-aligning holes are fixed in the self-aligning hole positioning groove according to the requirements and can move left and right. After adjustment, the self-aligning hole is fixed with the corresponding self-aligning hole positioning groove with bolts. The eccentric hole positioning groove extends in the left and right movement direction of the self-aligning disc, so that the water pump can complete the fine adjustment in the left and right direction and ensure that the water pump is horizontally aligned.

[0016] In a preferred embodiment of this utility model, an adapter plate 9 is installed at the bottom of the mounting plate. The bottom of the adapter plate has several mounting holes 10. The mounting plate has a waist-shaped groove 11, and the edge of the mounting plate has a screw hole communicating with the waist-shaped groove. An adjusting nut 12 is fitted into the screw hole. A pin 13, which mates with the adjusting nut, is provided in the waist-shaped groove. The bottom of the pin is fixedly connected to the adapter plate. To mount the fixture on a lathe, an adapter plate is designed at the bottom of the fixture. The adapter plate has three mounting holes, allowing it to replace the jaws of a horizontal lathe for lathe operation. This enables vertical adjustment. By tightening the adjusting nut, the pin can be pushed upwards; or by loosening the adjusting nut, the pin moves downwards due to gravity, causing the adapter plate to move up and down.

[0017] As a preferred embodiment of this utility model, it also includes a counterweight plate 14, which is installed on the top of one end of the base and leaves a water pump clamping space between itself and the self-aligning disc. When a lathe processes an object in a rotary motion, a large difference in weight outside the center of rotation during rotation will generate a large centrifugal force, damaging the precision of the equipment. Therefore, a counterweight plate is added to adjust the balance. The counterweight plate is fixed with bolts, and the appropriate counterweight plate can be replaced according to the different weights of different products.

[0018] In a preferred embodiment of this utility model, two fixing blocks 15 located on both sides of the mounting plate are fixedly connected to the base, and fixing bolts 16 are installed on the fixing blocks. By adjusting the fixing bolts, the water pump can be clamped and limited in the front and rear directions.

[0019] In a preferred embodiment of this invention, a reinforcing rib 17 is fixedly connected between the other side of the mounting plate and the substrate. The reinforcing rib enhances the structural stability of the mounting plate.

[0020] The above embodiments can be combined arbitrarily as needed, and as long as the resulting solutions do not conflict, they all fall within the protection scope of this utility model.

[0021] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A jig for machining the outlet of a water pump body, characterized in that: include: Base (1); Mounting plate (2), the mounting plate being vertically fixed to the base; Self-aligning disc (3), the self-aligning disc being located on one side of the mounting plate, the self-aligning disc having multiple steps; Eccentric hole (4), the eccentric hole being eccentrically located on the uppermost step of the self-aligning disc; Threaded rod (5), one end of the threaded rod passing through the eccentric hole and connected to the mounting plate, the other end being connected to the pressure plate (18) and the nut (19); A plurality of self-aligning holes (6), a plurality of the self-aligning holes being arc-shaped around the eccentric hole on the uppermost step of the self-aligning disc; Eccentric hole positioning groove (7), the eccentric hole positioning groove being located on the other side of the mounting plate and cooperating with one end of the threaded rod; Self-aligning hole positioning groove (8), the self-aligning hole positioning groove being located on the other side of the mounting plate and connected to one of the plurality of self-aligning holes by bolts.

2. The water pump body outlet machining fixture as described in claim 1, characterized in that: The mounting plate has an adapter plate (9) installed at the bottom. The adapter plate has several mounting holes (10) at the bottom. The mounting plate has a waist-shaped groove (11) inside. The edge of the mounting plate has a screw hole that communicates with the waist-shaped groove. An adjusting nut (12) is fitted in the screw hole. A pin (13) that cooperates with the adjusting nut is provided in the waist-shaped groove. The bottom of the pin is fixedly connected to the adapter plate.

3. The water pump body outlet machining fixture as described in claim 1, characterized in that: It also includes a counterweight plate (14), which is installed on the top of one end of the base and leaves a water pump clamping space between it and the self-aligning disc.

4. The water pump body outlet machining fixture as described in claim 1, characterized in that: Two fixing blocks (15) located on both sides of the mounting plate are fixedly connected to the base, and fixing bolts (16) are installed on the fixing blocks.

5. The water pump body outlet machining fixture as described in claim 1, characterized in that: A reinforcing rib (17) is fixed between the other side of the mounting plate and the base plate.

Images