Pump shaft machining tool

Abstract

The pump shaft machining tool comprises a machine base, a connecting sleeve, a first clamping block and a second clamping block, a first through hole matched with a pump shaft is formed in the connecting sleeve, the connecting sleeve is fixedly connected to the machine base and located between the machine base and the first clamping block, the first clamping block is fixedly connected to the connecting sleeve, and the second clamping block is fixedly connected to the connecting sleeve. The second clamping block is detachably fixed to the first clamping block, a first arc-shaped groove is formed in the first clamping block in the first direction, a second arc-shaped groove matched with the first arc-shaped groove to form a second through hole is formed in the second clamping block, the pump shaft is in interference fit with the second through hole, a third arc-shaped groove is formed in the first clamping block in the second direction, and the first direction is perpendicular to the second direction. By arranging the first through hole, the tail of the pump shaft can be avoided, the pump shaft can be fixed on the basis of fixed connection of the first clamping block and the second clamping block, and then the stability of the machining process of a spline groove and symmetrical small holes in the pump shaft is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of mechanical equipment processing, and particularly relates to a pump shaft processing tooling. Background Art

[0002] With the rapid development of technology, the market has higher and higher requirements for the precision of pumps and motors. As an important part of pumps and motors, the precision requirements for pump shafts are also correspondingly higher. Currently, for the processing of the spline groove and symmetric small holes at the top of the pump shaft, most are manually fixed by operators and then processed. However, it is difficult to guarantee the precision and product consistency of manual fixing. In view of this, researching a special tooling to assist in the clamping of the pump shaft to achieve the processing of the high-precision spline groove and its symmetric small holes at the top of the pump shaft is a technical problem that needs to be urgently solved by those skilled in the art. Utility Model Content

[0003] To solve the above technical problems, this application provides a pump shaft processing tooling, including a machine base, a connecting sleeve, a first clamping block, and a second clamping block. A first through hole matching the pump shaft is provided on the connecting sleeve, and the connecting sleeve is fixedly connected to the machine base and is located between the machine base and the first clamping block. The first clamping block is fixedly connected to the connecting sleeve, the second clamping block is detachably fixed to the first clamping block. The first clamping block is provided with a first arc-shaped groove along a first direction, and the second clamping block is provided with a second arc-shaped groove that matches the first arc-shaped groove to form a second through hole. The pump shaft is in interference fit with the second through hole. The first clamping block is provided with a third arc-shaped groove along a second direction, and the first direction is perpendicular to the second direction.

[0004] In some embodiments, it further includes fastening screws. Symmetric first threaded holes are provided on both sides of the first arc-shaped groove on the first clamping block, and second threaded holes matching the first threaded holes are provided on the second clamping block. The fastening screws pass through the second threaded holes and the first threaded holes to fix the second clamping block to the first clamping block.

[0005] In some embodiments, arc-shaped guiding bosses are symmetrically provided on both sides of the first arc-shaped groove in the third arc-shaped groove.

[0006] In some embodiments, it further includes a flange. One end of the connecting sleeve away from the first clamping block is fixedly connected to the flange, and the connecting sleeve is fixedly connected to the machine base through the flange.

[0007] In some embodiments, the flange is circumferentially and evenly provided with third threaded holes, and the machine base is provided with fourth threaded holes matching the third threaded holes.

[0008] In some embodiments, the machine base is provided with a circular positioning groove matching the flange.

[0009] In some embodiments, along the second direction, one end of the second clamping block is hinged to the first clamping block.

[0010] In some embodiments, the connecting sleeve is welded to the flange.

[0011] In some embodiments, the first clamping block is welded to the connecting sleeve.

[0012] Compared with the prior art, the pump shaft processing tooling provided by the present application avoids the tail of the pump shaft by setting the first through hole, and the detachable fixed connection between the first clamping block and the second clamping block not only facilitates the disassembly and assembly of the pump shaft, but also ensures the stability of the pump shaft processing process. At the same time, the stable processing of the symmetrical small holes in the middle of the pump shaft can be realized by using the provided third arc groove. Therefore, the pump shaft processing tooling provided by the embodiments of the present application realizes the rapid positioning and clamping of the pump shaft, can ensure the stability of the pump shaft processing process and the consistency of the products, effectively improves the work efficiency, and can also interchange a variety of pump shafts of the same series, expanding the application range of the tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] By reading the following detailed description of the embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing some embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0014] Figure 1 shows an exploded view of the structure of the pump shaft processing tooling provided in some embodiments of the present application,

[0015] Figure 2 shows an exploded view of the connection structure between the pump shaft and the processing fixture provided in some embodiments of the present application.

[0016] The reference numerals in the specific embodiments are as follows:

[0017] 1. Machine base, 2. Connecting sleeve, 21. Flange, 22. Third threaded hole, 23. First clamping block, 24. Second clamping block, 25. Second threaded hole, 26. Fastening screw, 27. First threaded hole, 28. Third arc groove, 29. First arc groove, 3. Pump shaft, 31. First symmetrical small hole, 32. Second symmetrical small hole, 33. Spline groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To facilitate the understanding of the structure and operation method of the present application, the following describes the present application more comprehensively and carefully in combination with the specification drawings and optimized embodiments, but the protection scope of the present application is not limited to the following specific embodiments. It should be noted that without affecting the use effect, the structural features and component sizes in the embodiments of the present application can be changed, the connection methods can be substituted, and the device sizes can be changed.

[0019] Unless otherwise defined, all technical terms used hereinafter have the same meanings as commonly understood by those skilled in the art. The terms "first", "second" and similar terms used in the description and claims of this patent application do not denote any order, quantity or importance, but are merely used to distinguish the corresponding components for convenience. Similarly, terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. Terms such as "connected" or "communicated" are not limited to direct connection, but can be indirectly connected through other intermediate connectors. Terms such as "above", "below", "one side", "the other side", "vertical", "horizontal" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0020] The following specifically describes the implementation manner of the pump shaft processing tooling according to the disclosure of this application with reference to the drawings. Figure 1 Fig. shows an exploded view of the structure of the pump shaft processing tooling provided in some embodiments of this application. Figure 2 Fig. shows an exploded view of the connection structure between the pump shaft and the processing fixture provided in some embodiments of this application.

[0021] It should be noted that the first direction refers to Figure 2 the x direction in Figure 2 and the second direction refers to the y direction in.

[0022] Please refer to Figure 1 - Figure 2 As shown, a pump shaft processing tooling provided in an embodiment of this application includes a machine base 1, a connecting sleeve 2, a first clamping block 23 and a second clamping block 24. A first through hole matching the pump shaft 3 is formed in the connecting sleeve 2, and the connecting sleeve 2 is fixedly connected to the machine base 1 and located between the machine base 1 and the first clamping block 23. The first clamping block 23 is fixedly connected to the connecting sleeve 2, and the second clamping block 24 is detachably fixed to the first clamping block 23. The first clamping block 23 is provided with a first arc-shaped groove 29 along the first direction, and the second clamping block 24 is provided with a second arc-shaped groove that matches the first arc-shaped groove 29 to form a second through hole. The pump shaft 3 is in interference fit with the second through hole. The first clamping block 23 is provided with a third arc-shaped groove 28 along the second direction, and the first direction is perpendicular to the second direction.

[0023] In the above-described embodiment, when machining the pump shaft 3, first fix the connecting sleeve 2 on the machine base 1; then place the rear end of the pump shaft 3 in the first through hole on the connecting sleeve 2, and place the front end of the pump shaft 3 in the first arc-shaped groove 29; then, use the second pressing block 24 to be fixedly connected in a matching manner with the first pressing block 23, and the front end of the pump shaft 3 can be fixed in the second through hole and in interference fit with the second through hole, ensuring the stability and product consistency during the machining process of the pump shaft 3. The pump shaft machining tooling provided by the embodiment of the present application uses the provided first through hole to avoid the tail of the pump shaft 3, and the detachable fixed connection between the first clamping block 23 and the second clamping block 24 realizes the machining of the spline groove 33 and the second symmetric small hole 32 at the front end of the pump shaft 3, which is convenient for the disassembly and assembly of the pump shaft 3 and can ensure the stability of the machining process of the pump shaft 3. At the same time, the stable machining of the first symmetric small hole 31 on the middle part of the pump shaft can be realized by using the provided third arc-shaped groove 28.

[0024] Therefore, the pump shaft machining tooling provided by the embodiment of the present application realizes the rapid positioning and clamping of the pump shaft 3, can ensure the stability of the machining process of the pump shaft 3 and the consistency of the product, effectively improves the work efficiency, and can also perform interchangeable positioning and clamping on various pump shafts 3 of the same series, expanding the applicable range of the tooling.

[0025] In some embodiments, it further includes a fastening screw 26. Symmetric first threaded holes 27 are provided on the first clamping block 23 on both sides of the first arc-shaped groove, and second threaded holes 25 that are correspondingly matched with the first threaded holes 27 are provided on the second clamping block 24. The fastening screw 26 passes through the second threaded hole 25 and the first threaded hole 27 to fix the second clamping block 24 on the first clamping block 23.

[0026] In the above-described embodiment, by providing correspondingly matched first threaded holes 27 and second threaded holes 25, the second clamping block 24 can be fixed on the first clamping block 23 by passing the fastening screw 26 through the second threaded hole 25 and the first threaded hole 27, so that the second clamping block 24 is detachably fixed on the first clamping block 23.

[0027] In some embodiments, arc-shaped guiding bosses (not shown in the figure) are symmetrically provided in the third arc-shaped groove 28 on both sides of the first arc-shaped groove 29.

[0028] In the above-described embodiment, by providing arc-shaped guiding bosses in the third arc-shaped groove 28, the machining of the first symmetric small hole 31 on the pump shaft 3 can be guided, and the work efficiency is improved to a certain extent.

[0029] In some embodiments, it further includes a flange 21. One end of the connecting sleeve 2 away from the first clamping block 23 is fixedly connected to the flange 21, and the connecting sleeve 2 is fixedly connected to the machine base 1 through the flange 21.

[0030] In the above-described embodiments, the connecting sleeve 2 is stably fixed to the machine base 1 through the provided flange 21, which can ensure the stability of the pump shaft 3 during the machining process.

[0031] In some embodiments, the flange 21 is circumferentially and uniformly provided with third threaded holes 22, and the machine base 1 is provided with fourth threaded holes 12 that match the third threaded holes 22.

[0032] In the above-described embodiments, the flange 21 is stably fixed to the machine base 1 through the matching of the third threaded holes 22 and the fourth threaded holes 12, and with the cooperation of external bolts or screws.

[0033] It should be noted that the number of the third threaded holes 22 is eight in the above-described embodiments. In other embodiments, the number of the third threaded holes 22 can be any number such as three, four, five, six, seven, nine, ten, and more than ten. Generally speaking, the more the number, the better the stability. In the actual application process, the practicability and stability should be comprehensively considered.

[0034] In some embodiments, the machine base 1 is provided with a circular positioning groove 11 that matches the flange 21.

[0035] In the above-described embodiments, in order to ensure the precise matching of the flange 21 and the machine base 1, and at the same time ensure the positional tolerance and perpendicularity requirements of the flange 21 and the machine base 1, a circular positioning groove 11 that matches the flange 21 is provided on the machine base 1. Moreover, the circular positioning groove 11 can also be used to guide the connection between the flange 21 and the machine base 1, further improving the clamping efficiency.

[0036] In some embodiments, along the second direction, one end of the second clamping block 24 is hinged to the first clamping block 23.

[0037] In the above-described embodiments, along the y direction, the upper end or the lower end of the second clamping block 24 is hinged to the first clamping block 23. In this way, it can be ensured that the second clamping block 24 can rotate along the first clamping block 23 before the pump shaft 3 is clamped, which will neither affect the disassembly and assembly of the pump shaft 3, and at the same time can reduce the alignment time of the second clamping block 24 during the installation process, and reduce the risk of component loss caused by the operator randomly discarding the second clamping block 24 during the disassembly process.

[0038] In some embodiments, the connecting sleeve 2 is welded to the flange 21, and the first clamping block 23 is welded to the connecting sleeve 2.

[0039] In the above-described embodiments, the connecting sleeve 2 and the flange 21 as well as the first clamping block 23 and the connecting sleeve 2 are both set to be welded and fixed, ensuring the reliability of the connection between the components.

[0040] The above has introduced in detail a kind of processing tooling for pump shafts provided by this application. Specific examples are used in this text to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the core idea of this application. It should be noted that for those of ordinary skill in the art, without departing from the principle of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A pump shaft processing tool, characterized in that: The invention comprises a machine base (1), a connecting sleeve (2), a first clamping block (23) and a second clamping block (24); the connecting sleeve (2) is provided with a first through hole matching with a pump shaft (3); the connecting sleeve (2) is fixedly connected to the machine base (1) and is located between the machine base (1) and the first clamping block (23); the first clamping block (23) is fixedly connected to the connecting sleeve (2); the second clamping block (24) is detachably fixed to the first clamping block (23); the first clamping block (23) is provided with a first arc groove (29) along a first direction; the second clamping block (24) is provided with a second arc groove matching with the first arc groove (29) to form a second through hole; the pump shaft (3) and the second through hole are interference fit; the first clamping block (23) is provided with a third arc groove (28) along a second direction; the first direction is perpendicular to the second direction.

2. The pump shaft processing tool as claimed in claim 1, characterized in that: The invention also includes a fastening screw (26); the first clamping block (23) is symmetrically provided with first threaded holes (27) located on both sides of the first arc-shaped groove; the second clamping block (24) is provided with a second threaded hole (25) matching the first threaded hole (27); the fastening screw (26) passes through the second threaded hole (25) and the first threaded hole (27) to fix the second clamping block (24) on the first clamping block (23).

3. The pump shaft processing tool as claimed in claim 1, characterized in that: The third arc-shaped groove (28) is symmetrically provided with arc-shaped guide bosses located on both sides of the first arc-shaped groove (29).

4. The pump shaft processing tool as claimed in claim 1, characterized in that: It also comprises a flange (21), and one end of the connecting sleeve (2) away from the first clamping block (23) is fixedly connected to the flange (21), and the connecting sleeve (2) is fixedly connected to the machine base (1) via the flange (21).

5. The pump shaft processing tool as claimed in claim 4, characterized in that: The flange (21) is evenly provided with third threaded holes (22) in the circumferential direction, and the machine base (1) is provided with fourth threaded holes (12) matching the third threaded holes (22).

6. The pump shaft processing tool as claimed in claim 5, characterized in that: The machine base (1) is provided with a circular positioning groove (11) matching and corresponding to the flange (21).

7. The pump shaft processing tool as claimed in claim 1, characterized in that: Along the second direction, one end of the second clamping block (24) is hinged to the first clamping block (23).

8. The pump shaft processing tool as claimed in claim 1, characterized in that: The connecting sleeve (2) is welded to the flange (21).

9. The pump shaft processing tool as claimed in claim 1, characterized in that: The first clamping block (23) is welded to the connecting sleeve (2).

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