A centrifugal pump body end face, outer diameter and R groove turning tool

Abstract

The utility model discloses a centrifugal pump body end face, outer diameter and R groove lathe processing tooling, which belongs to the technical field of centrifugal pump processing tooling, including a pump body support top shaft, a guide column sliding guide plate and a tailstock end movable ejector. Through the above method, the cone-tipped guide column bolt drives the top pressure assembly to move and extend to the outside of the guide column sliding guide plate, and multiple top pressure assemblies simultaneously press and clamp the inner wall of the pump body. During the clamping process, the angle position of the pump body end face is automatically guided and adjusted through the movement of the tailstock end movable ejector, so as to achieve stable and rapid clamping of the pump body end face, saving the time of alignment. At the same time, because the support is directly provided by the tailstock end movable ejector, the overall rigidity of the support and the workpiece is improved, which is more conducive to processing and avoids vibration caused by insufficient support force during the end face processing.

Description

[Technical field]

[0001] The utility model relates to the technical field of centrifugal pump processing tooling, in particular to a centrifugal pump body end face, outer diameter and R groove turning tooling. [Background Technology]

[0002] The pump body of a centrifugal pump is a key component of a water pump. It consists of an inlet, an outlet, and a volute. The end faces, outer diameters, and R grooves at both ends of the inlet and outlet sections need to be processed before they can be assembled with the connecting flanges connected to them. The traditional processing method generally uses an L-plate clamped on the four jaws of a lathe, the L-plate supports the inlet and outlet sections, aligns the inlet and outlet of the inlet and outlet sections, and then processes the end faces.

[0003] Chinese patent CN213176178U discloses a vertical single-stage centrifugal pump body structure, including a volute and a water inlet pipe body; the two end faces of the volute are respectively provided with a pump cover mounting port and a water inlet pipe mounting port, and the side of the volute is provided with a water outlet pipe portion. One end of the water inlet pipe body is adjustable in mounting angle with the water inlet pipe mounting port of the volute, and is connected and fixed by a countersunk screw, and the other end of the water inlet pipe body is the water inlet of the pump body.

[0004] However, the existing device still has the following problems: due to the long length of the water inlet and outlet sections, the tailstock is not supported, and the end face of the workpiece is suspended, resulting in poor processing rigidity, which is prone to vibration during the processing process. The center height of the end cover needs to be corrected during clamping, and the inner diameter of the end cover needs to be aligned when processing the end face of the end cover, which is relatively time-consuming.

[0005] Based on this, the utility model designs a centrifugal pump body end face, outer diameter and R groove turning tooling to solve the above problems. [Contents of the utility model]

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a machining tool for the end face, outer diameter and R groove of a centrifugal pump body.

[0007] In order to achieve the above-mentioned purpose, a centrifugal pump body end face, outer diameter and R groove lathe machining tool is designed, which includes a pump body support top shaft, a guide column sliding guide plate and a tailstock end movable ejector, the guide column sliding guide plate is provided with a connecting component for connecting the pump body support top shaft and the tailstock end movable ejector, the pump body support top shaft is plugged with the guide column sliding guide plate through the connecting component, and the tailstock end movable ejector is plugged with the tail end of the pump body support top shaft through the connecting component, a groove is provided on the right side of the guide column sliding guide plate, and a tightening mechanism for clamping the pump body is provided in the groove; the tightening mechanism includes a guide column bolt with a cone tip, a nut groove, and a nut groove for tightening the pump body; A limit sliding assembly for the limited sliding of the cone-tipped guide column bolt and a contraction structure for the extension and contraction of the cone-tipped guide column bolt, a plurality of groups of limit sliding assemblies are evenly arranged in the right groove of the guide column sliding guide plate along the circumferential direction, a plurality of cone-tipped guide column bolts are respectively connected to the plurality of limit sliding assemblies, a plurality of nut grooves are evenly arranged on the outer wall of the guide column sliding guide plate along the circumferential direction, the cone-tipped guide column bolt is connected to the contraction structure; a pressing assembly for pressing the inner wall of the pump body is arranged at the tail end of the cone-tipped guide column bolt, and a matching structure for matching and sliding with the tip of the movable ejector pin at the tail seat end is arranged at the top end of the cone-tipped guide column bolt.

[0008] Furthermore, the connecting component includes a connecting hole and a connecting groove, and the connecting hole and the connecting groove are both opened on the guide post sliding guide plate, the connecting hole is opened on the right side of the guide post sliding guide plate, and the connecting groove is opened on the left side of the guide post sliding guide plate.

[0009] Furthermore, the connecting hole is communicated with the connecting groove, the rear end of the pump body supporting top shaft is plugged into the connecting groove, and the diameter of the connecting groove is larger than the diameter of the connecting hole.

[0010] Furthermore, a matching hole is provided at the rear end of the pump body supporting the top shaft.

[0011] Furthermore, the matching structure is configured as a conical surface block, and the conical surface block is fixedly connected to the top end of the guide column bolt with a conical tip.

[0012] Furthermore, the limited sliding assembly includes a cone-tipped guide column bolt sliding hole and a cone-tipped guide column bolt sliding groove, and a plurality of cone-tipped guide column bolt sliding holes and a cone-tipped guide column bolt sliding groove are evenly arranged on the guide column sliding guide plate in a circumferential direction, and the tips of the plurality of cone-tipped guide column bolt sliding grooves all point to the center of the circle, and the axis of the cone-tipped guide column bolt is slidably connected to the cone-tipped guide column bolt sliding hole, and one side of the top of the outer wall of the cone-tipped guide column bolt is limitedly slidably connected to the cone-tipped guide column bolt sliding groove, and the cone-tipped guide column bolt sliding hole is connected to the nut groove.

[0013] Furthermore, the pressing assembly includes a thread and a nut, the thread is arranged at the rear end of the guide column bolt with a cone tip, the nut is threadedly connected to the thread, and the nut is slidably connected to the nut groove.

[0014] Furthermore, the contraction structure is configured as a spring, and a spring is fixedly connected between the inner wall of the groove of the guide post sliding guide plate and the outer wall of the guide post bolt with a cone tip.

[0015] Compared with the prior art, the utility model has a cone-tipped guide post bolt that drives the pressing assembly to move and extend to the outside of the guide post sliding guide plate, and multiple pressing assemblies simultaneously press and clamp the inner wall of the pump body. During the clamping process, the angle position of the end face of the pump body is automatically guided and adjusted by the movement of the movable ejector pin at the tailstock end, so that the end face of the pump body can be stably and quickly clamped, saving the time for alignment. At the same time, because the movable ejector pin at the tailstock end directly supports, the overall rigidity of the support and the workpiece is improved, which is more conducive to processing and avoids vibration caused by insufficient supporting force during end face processing. [Drawings]

[0016] Figure 1 It is a front view and internal section view of the end face, outer diameter and R groove turning tooling of a centrifugal pump body of the utility model;

[0017] Figure 2 It is a half-section diagram of the expansion mechanism;

[0018] Figure 3 It is a schematic diagram of the structure of the guide post sliding guide plate;

[0019] Figure 4 It is a schematic diagram of the structure of the guide column bolt with a cone tip;

[0020] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0021] In the figure: 1. pump body; 11. pump body supporting top shaft; 12. matching hole; 2. guide column sliding guide plate; 21. expansion mechanism; 22. connecting assembly; 221. connecting hole; 222. connecting groove; 23. limit sliding assembly; 231. sliding hole of guide column bolt with cone tip; 232. sliding groove of guide column bolt with cone tip; 24. guide column bolt with cone tip; 241. pressing assembly; 2411. thread; 2412. nut; 242. matching structure; 2421. conical surface block; 25. nut groove; 26. movable ejector pin at tailstock end; 27. contraction structure; 271. spring. [Specific implementation method]

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Embodiment 1

[0024] As shown in the accompanying drawings, in some embodiments, please refer to the attached Figure 1-5 The utility model provides a centrifugal pump body end face, outer diameter and R groove lathe processing tooling, including a pump body support top shaft 11, a guide column sliding guide plate 2 and a tailstock end movable ejector pin 26;

[0025] A connecting assembly 22 for connecting the pump body supporting top shaft 11 and the movable ejector pin 26 at the tail seat end is provided on the guide post sliding guide plate 2. The pump body supporting top shaft 11 is plugged with the guide post sliding guide plate 2 through the connecting assembly 22. The movable ejector pin 26 at the tail seat end is plugged with the tail end of the pump body supporting top shaft 11 through the connecting assembly 22. A groove is provided on the right side of the guide post sliding guide plate 2. A tightening mechanism 21 for clamping the pump body 1 is provided in the groove.

[0026] The expansion mechanism 21 includes a guide column bolt 24 with a cone tip, a nut groove 25, a limited sliding assembly 23 for limited sliding of the guide column bolt 24 with a cone tip, and a contraction structure 27 for the extension and contraction of the guide column bolt 24 with a cone tip. A plurality of groups of limited sliding assemblies 23 are evenly arranged in the right groove of the guide column sliding guide plate 2 along the circumferential direction, and a plurality of guide column bolts 24 with cone tips are respectively connected to the plurality of groups of limited sliding assemblies 23. A plurality of nut grooves 25 are evenly arranged on the outer wall of the guide column sliding guide plate 2 along the circumferential direction, and the guide column bolts 24 with cone tips are connected to the contraction structure 27.

[0027] The tail end of the cone-tipped guide column bolt 24 is provided with a pressing assembly 241 for pressing the inner wall of the pump body 1 , and the top end of the cone-tipped guide column bolt 24 is provided with a matching structure 242 for slidingly matching with the tip of the movable ejector pin 26 at the tail seat end.

[0028] When the utility model is in use, the left end of the workpiece is supported by the three claws of the three-claw self-centering chuck to tighten the inner hole and clamp the outer diameter, the clamping speed is fast and there is no need to align the inner wall of the pump body 1 at an angle, which saves time. The movable ejector pin 26 at the tailstock end is connected to the tailstock of the external machine tool, and the movable ejector pin 26 at the tailstock end moves to the left side. The movable ejector pin 26 at the tailstock end drives the pump body supporting top shaft 11 to move through the connecting component 22, and then the pump body supporting top shaft 11 supports the inside of the workpiece and continues to move. During the movement, the tip of the movable ejector pin 26 at the tailstock end contacts the tip of the guide column bolt 24 with a cone tip and pushes the guide column bolt 24 with a cone tip to retract. At this time, the cone-tipped guide post bolt 24 drives the pressing assembly 241 to move and extend to the outside of the guide post sliding guide plate 2, and multiple pressing assemblies 241 simultaneously press and clamp the inner wall of the pump body 1. During the clamping process, the angle position of the end face of the pump body 1 is automatically guided and adjusted through the movement of the movable ejector pin 26 at the tailstock end, so as to achieve stable and rapid clamping of the end face of the pump body 1, saving the time for alignment. At the same time, due to the direct support by the movable ejector pin 26 at the tailstock end, the overall rigidity of the support and the workpiece is improved, which is more conducive to processing and avoids vibration caused by insufficient supporting force during end face processing.

[0029] The connecting assembly 22 includes a connecting hole 221 and a connecting groove 222. Both the connecting hole 221 and the connecting groove 222 are provided on the guide post sliding guide plate 2. The connecting hole 221 is provided on the right side of the guide post sliding guide plate 2, and the connecting groove 222 is provided on the left side of the guide post sliding guide plate 2.

[0030] The connecting hole 221 is connected to the connecting groove 222, and the tail end of the pump body supporting top shaft 11 is plugged into the connecting groove 222. The diameter of the connecting groove 222 is larger than the diameter of the connecting hole 221. When the movable ejector pin 26 at the tailstock end moves to the left to the set position, the tip area of ​​the movable ejector pin 26 at the tailstock end contacts the right outer edge of the connecting hole 221.

[0031] A matching hole 12 is provided at the tail end of the pump body supporting top shaft 11. When the movable ejector pin 26 at the tailstock end moves to the left to the set position, the tip of the movable ejector pin 26 at the tailstock end is plugged into the matching hole 12.

[0032] The matching structure 242 is configured as a conical block 2421, which is fixedly connected to the top of the guide bolt 24 with a conical tip. When the movable ejector pin 26 at the tailstock end moves to the left to a set position, the outer wall of the conical block 2421 fits and slides with the tip of the movable ejector pin 26 at the tailstock end.

[0033] The limited sliding assembly 23 includes a guide post bolt sliding hole 231 with a cone tip and a guide post bolt sliding groove 232 with a cone tip. A plurality of guide post bolt sliding holes 231 with a cone tip and a guide post bolt sliding groove 232 with a cone tip are evenly opened on the guide post sliding guide plate 2 along the circumferential direction. The tips of the plurality of guide post bolt sliding grooves 232 with a cone tip all point to the center of the circle. The shaft of the guide post bolt 24 with a cone tip is slidably connected with the guide post bolt sliding hole 231 with a cone tip. One side of the top of the outer wall of the guide post bolt 24 with a cone tip is limitedly slidably connected with the guide post bolt sliding groove 232 with a cone tip. The guide post bolt sliding hole 231 with a cone tip is connected with the nut groove 25.

[0034] The pressing assembly 241 includes a thread 2411 and a nut 2412. The thread 2411 is arranged at the rear end of the guide column bolt 24 with a cone tip. The nut 2412 is threadedly connected with the thread 2411. The nut 2412 is slidably connected with the nut groove 25.

[0035] When the movable ejector pin 26 at the tailstock end moves to the left to push the guide column bolt 24 with a cone tip to contract, the tail end of the guide column bolt 24 with a cone tip will move outward, and then the tail end of the guide column bolt 24 with a cone tip will abut against the inner wall of the end face of the pump body 1, thereby clamping the end face with a fast clamping speed and a large clamping rigidity;

[0036] The contraction structure 27 is provided as a spring 271, and the spring 271 is fixedly connected between the inner wall of the groove of the guide post sliding guide plate 2 and the outer wall of the guide post bolt 24 with a cone tip;

[0037] When the movable ejector pin 26 at the tailstock end moves rightward to be separated from the conical surface block 2421 , the guide column bolt 24 with a conical tip will be reset under the action of the spring 271 , thereby releasing the squeezing and fixing on the inner wall of the end surface of the pump body 1 .

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0039] The present invention is not limited to the above-mentioned implementation modes, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A centrifugal pump body end face, outer diameter and R groove lathe processing tool, comprising a pump body support top shaft (11), a guide column sliding guide plate (2) and a tailstock end movable ejector pin (26), characterized in that: The guide post sliding guide plate (2) is provided with a connecting assembly (22) for connecting the pump body supporting top shaft (11) and the movable ejector pin (26) at the tail seat end; the pump body supporting top shaft (11) is plugged into the guide post sliding guide plate (2) through the connecting assembly (22); the movable ejector pin (26) at the tail seat end is plugged into the tail end of the pump body supporting top shaft (11) through the connecting assembly (22); a groove is provided on the right side of the guide post sliding guide plate (2); a tightening mechanism (21) for clamping the pump body (1) is provided in the groove; The expansion mechanism (21) comprises a guide column bolt with a cone tip (24), a nut groove (25), a limited sliding assembly (23) for limited sliding of the guide column bolt with a cone tip (24), and a contraction structure (27) for expansion and contraction of the guide column bolt with a cone tip (24); a plurality of groups of limited sliding assemblies (23) are evenly arranged in the right groove of the guide column sliding guide plate (2) along the circumferential direction; a plurality of guide column bolts with cone tips (24) are respectively connected to the plurality of groups of limited sliding assemblies (23); a plurality of nut grooves (25) are evenly arranged on the outer wall of the guide column sliding guide plate (2) along the circumferential direction; and the guide column bolt with a cone tip (24) is connected to the contraction structure (27); The tail end of the cone-tipped guide column bolt (24) is provided with a pressing assembly (241) for pressing the inner wall of the pump body (1), and the top end of the cone-tipped guide column bolt (24) is provided with a matching structure (242) for matching and sliding with the tip of the movable ejector pin (26) at the tail seat end.

2. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 1 is characterized in that: The connection assembly (22) comprises a connection hole (221) and a connection groove (222), wherein the connection hole (221) and the connection groove (222) are both provided on the guide post sliding guide plate (2), wherein the connection hole (221) is provided on the right side of the guide post sliding guide plate (2), and the connection groove (222) is provided on the left side of the guide post sliding guide plate (2).

3. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 2, characterized in that: The connecting hole (221) is in communication with the connecting groove (222), the rear end of the pump body supporting top shaft (11) is plugged into the connecting groove (222), and the diameter of the connecting groove (222) is greater than the diameter of the connecting hole (221).

4. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 3, characterized in that: A matching hole (12) is provided at the rear end of the pump body supporting top shaft (11).

5. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 4, characterized in that: The matching structure (242) is configured as a conical surface block (2421), and the conical surface block (2421) is fixedly connected to the top end of the guide column bolt (24) with a conical tip.

6. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 5, characterized in that: The limited sliding assembly (23) comprises a cone-tipped guide column bolt sliding hole (231) and a cone-tipped guide column bolt sliding groove (232); a plurality of cone-tipped guide column bolt sliding holes (231) and cone-tipped guide column bolt sliding grooves (232) are evenly arranged on the guide column sliding guide plate (2) along the circumferential direction; the tips of the plurality of cone-tipped guide column bolt sliding grooves (232) all point to the center of the circle; the axis of the cone-tipped guide column bolt (24) is slidably connected to the cone-tipped guide column bolt sliding hole (231); one side of the outer wall top of the cone-tipped guide column bolt (24) is limitedly slidably connected to the cone-tipped guide column bolt sliding groove (232); and the cone-tipped guide column bolt sliding hole (231) is connected to the nut groove (25).

7. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 6, characterized in that: The pressing assembly (241) comprises a thread (2411) and a nut (2412), wherein the thread (2411) is arranged at the rear end of the guide column bolt (24) with a cone tip, the nut (2412) is threadedly connected to the thread (2411), and the nut (2412) is slidably connected to the nut groove (25).

8. The centrifugal pump body end face, outer diameter and R groove turning tooling according to claim 7, characterized in that: The contraction structure (27) is configured as a spring (271), and a spring (271) is fixedly connected between the inner wall of the groove of the guide post sliding guide plate (2) and the outer wall of the guide post bolt (24) with a cone tip.

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