Positioning tool for machining reducer valve body

Abstract

The utility model discloses a positioning tool for machining of speed reducer valve body, it includes work table, vertical positioning mechanism, including at least one drive unit and set in the output shaft of drive unit's vertical positioning block, vertical positioning block is used to along vertical to the shell of valve body and is positioned, horizontal positioning mechanism, including fixedly connected on first positioning piece of work table and the second positioning piece of movable connection on work table, first positioning piece with second positioning piece is from the both sides of shell and is positioned. The positioning tool of this scheme is used to good positioning of speed reducer valve body in the machining process, prevents the displacement of valve body in the machining process, ensures the accuracy of processing.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically a positioning tooling for machining a speed reducer valve body. Background Technology

[0002] like Figure 1 The illustrated reducer valve body includes an outer shell and an internal structure 30 disposed within the inner cavity of the outer shell. The outer shell includes an integrally formed circular bottom 10, an irregularly shaped top 20, and two side portions 40. The two side portions 40 are distributed on both sides of the bottom 10, and each side portion 40 is provided with a reinforcing rib 50 between itself and the bottom 10. The internal structure 30 is mainly disposed within the top 30 of the outer shell. This reducer valve body is typically formed by casting. After casting, the valve body needs to have its mounting holes tapped using a tapping machine, or its internal structure or mounting surfaces further processed using other machining equipment. During the processing, the valve body needs to be properly positioned. Utility Model Content

[0003] To overcome the deficiencies in the prior art, this utility model provides a positioning fixture for machining a speed reducer valve body, which is used to properly position the speed reducer valve body during machining, prevent displacement of the valve body during machining, and ensure machining accuracy.

[0004] This application discloses a positioning fixture for machining a speed reducer valve body. The speed reducer valve body includes a housing, which includes an integrally formed bottom and top. The positioning fixture includes:

[0005] Workbench;

[0006] A vertical positioning mechanism includes at least one drive unit and a vertical positioning block disposed on the output shaft of the drive unit, the vertical positioning block being used to position the housing vertically;

[0007] The horizontal positioning mechanism includes a first positioning member fixedly connected to the worktable and a second positioning member movably connected to the worktable, wherein the first positioning member and the second positioning member position the outer casing from both sides.

[0008] Specifically, the positioning fixture also includes multiple pads, which are spaced apart on the worktable to support the outer shell from the bottom.

[0009] Specifically, the plurality of pads form a space, and a window is provided through the workbench at a location corresponding to the space.

[0010] Specifically, the drive unit includes a cylinder fixed to the workbench and a first mounting base. The first mounting base is located on the side of the cylinder facing the housing. A connecting rod is hinged to the first mounting base. The vertical positioning block is simultaneously hinged to the piston rod of the cylinder and the connecting rod.

[0011] Specifically, the cylinder body is fixed below the worktable, and the piston rod of the cylinder passes through the worktable.

[0012] Specifically, the first positioning element is a V-shaped positioning block fixedly connected to the workbench. The V-shaped positioning block has a first positioning surface and a second positioning surface on the side facing the outer shell for contacting the outer shell.

[0013] Specifically, the angle between the first positioning surface and the second positioning surface is greater than 90° and less than 180°.

[0014] Specifically, the second positioning element includes a second mounting base fixed to the workbench and a bolt passing through the second mounting base, the bolt being used to position the housing.

[0015] This utility model has at least the following beneficial effects:

[0016] The positioning fixture in this embodiment includes a horizontal positioning mechanism comprising a first positioning module fixedly connected to the worktable and a second positioning module movably connected to the worktable. During operation, the first positioning module remains stationary, ensuring consistent valve body positioning each time. Precise valve body positioning is achieved by adjusting the position of the second positioning module. After the horizontal positioning structure is properly positioned, the valve body is then positioned using a vertical positioning mechanism. This comprehensively prevents valve body displacement during processing, ensuring machining accuracy. Since the vertical positioning mechanism drives the vertical positioning block to move up and down via a drive unit, semi-automatic valve body positioning can be achieved, improving work efficiency and reducing operator fatigue.

[0017] To make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1This is a schematic diagram of the structure in an embodiment of the present utility model;

[0020] Figure 2 This is a perspective view of the positioning fixture for machining the reducer valve body in this embodiment of the utility model;

[0021] Figure 3 This is a top view of the positioning fixture (clamping valve body) used for machining the reducer valve body in this embodiment of the present invention;

[0022] Figure 4 This is a top view of the positioning fixture (without clamping the valve body) used for machining the reducer valve body in this embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the first positioning member in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the second positioning member in an embodiment of this utility model.

[0025] The reference numerals in the above figures are as follows: 1. Workbench; 11. Window; 2. Vertical positioning mechanism; 211. Cylinder; 212. First mounting base; 213. Connecting rod; 22. Vertical positioning block; 31. First positioning component; 311. First positioning surface; 312. Second positioning surface; 32. Second positioning component; 321. Second mounting base; 322. Bolt; 10. Bottom; 20. Top; 30. Internal structure; 40. Side; 50. Reinforcing rib. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "fixing," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this application.

[0030] Furthermore, the terms "first" and "second" are used only to distinguish between different terms in description and do not have any special meaning.

[0031] like Figure 1 As shown, the reducer valve body described in this embodiment mainly includes a housing, which includes an integrally formed bottom 10 and a top 20.

[0032] Combination Figure 2 and Figure 3 As shown, the positioning fixture for machining the reducer valve body of this utility model (hereinafter referred to as the positioning fixture) mainly includes a worktable 1, a vertical positioning mechanism 2, and a horizontal positioning mechanism. The worktable 1 can be mounted on a frame (not shown) and is used to support the reducer valve body (hereinafter referred to as the valve body) to be machined, as well as the vertical positioning mechanism 2 and the horizontal positioning mechanism. The vertical positioning mechanism 2 includes at least one drive unit, and each drive unit has a vertical positioning block 22 connected to its output shaft. The vertical positioning block 22 is used to position the bottom of the valve body's outer shell vertically. The horizontal positioning mechanism includes a first positioning element 31 fixedly connected to the worktable 1 and a second positioning element 32 movably connected to the worktable 1. The first positioning element 31 and the second positioning element 32 position the valve body from both sides of its outer shell, respectively.

[0033] In this embodiment, the number of vertical positioning mechanisms 2 is three.

[0034] Using the above scheme, the positioning fixture in this embodiment includes a first positioning module fixedly connected to the worktable 1 and a second positioning module movably connected to the worktable 1 in its horizontal positioning mechanism. During operation, the first positioning module remains stationary, ensuring the consistency of valve body positioning each time. Precise valve body positioning is achieved by adjusting the position of the second positioning module. After the horizontal positioning structure is properly positioned, the valve body is then positioned by the vertical positioning mechanism 2. This comprehensively prevents valve body displacement during processing. Since the vertical positioning mechanism 2 drives the vertical positioning block 22 to move up and down via a drive unit, semi-automatic valve body positioning can be achieved, improving work efficiency and reducing operator fatigue.

[0035] like Figure 4 As shown, the positioning fixture also includes multiple pads, which are spaced apart on the worktable 1 to support the valve body from the bottom. Using pads to support the valve body means that when the pads wear out after a period of use, only the pads need to be replaced, thus saving on maintenance costs.

[0036] Furthermore, multiple pads enclose a space, and a window 11 is provided through the workbench 1 at a location corresponding to this space. In other words, the window 11 is located at a location on the workbench 1 corresponding to the valve body positioning area. By providing a window 11 on the workbench 1 at a location corresponding to the space enclosed by the pads, waste materials generated during processing can easily fall from the window 11 into a waste bin (which can be provided as needed) located below the workbench 1, reducing the accumulation of waste materials on the workbench 1 during processing.

[0037] like Figure 2 As shown, the drive unit includes a cylinder 211 fixed to the worktable 1 and a first mounting base 212, with the first mounting base 212 located on the side of the cylinder 211 facing the outer casing. A connecting rod 213 is hinged to the first mounting base 212, and the aforementioned vertical positioning block 22 is simultaneously hinged to both the piston rod of the cylinder 211 and the connecting rod 213. Specifically, the end of the vertical positioning block 22 can be hinged to the piston rod of the cylinder 211, and its middle portion can be hinged to the connecting rod 213, with the end facing away from the cylinder 211 used to contact the outer casing of the valve body.

[0038] By using a method where the vertical positioning block 22 is simultaneously hinged to the piston rod and connecting rod 213 of the cylinder 211, when it is necessary to put the valve body into the positioning fixture or take the valve body out of the fixture, the retraction of the piston rod of the cylinder 211 can drive the vertical positioning block 22 to rotate, thereby causing the vertical positioning block 22 to flip outward to expand the space and facilitate the valve body to be placed on or taken out of the pad. When the piston rod of the cylinder 211 extends, it drives the vertical positioning block 22 to flip inside the box to press the valve body.

[0039] Better, such as Figure 2As shown, the cylinder body of cylinder 211 can be fixed below the worktable 1, and the piston rod of cylinder 211 passes through the worktable 1 to connect to the vertical positioning block 22.

[0040] Combination Figure 3 and Figure 5 As shown, the first positioning element 31 can be a V-shaped positioning block fixedly connected to the worktable 1. The V-shaped positioning block has a first positioning surface 311 and a second positioning surface 312 on the side facing the valve body housing for contacting the housing. The included angle between the first positioning surface 311 and the second positioning surface 312 is greater than 90° and less than 180°. Using this design, the first positioning element 31 can simultaneously position the valve body in both the X and Y directions.

[0041] Combination Figure 3 and Figure 6 As shown, the second positioning element 32 includes a second mounting base 321 fixed on the worktable 1 and a bolt 322 passing through the second mounting base 321. The housing can be clamped and positioned and loosened by rotating the bolt 322. The number of second positioning elements 32 is preferably 2 to 4.

[0042] In summary, the usage process of the positioning fixture in this embodiment is as follows: the piston rod of the cylinder 211 retracts and drives the vertical positioning block 22 to flip outward, the bolt 322 on the second mounting base 321 is rotated to make the bolt 322 retract, the valve body is placed on the three pads and the outer shell of the valve body contacts the first positioning surface 311 and the second positioning surface 312 of the V-shaped positioning block, and then the bolt 322 on the second mounting base 321 is tightened in sequence, the piston rod of the cylinder 211 extends to make the vertical positioning block 22 flip inward to press the valve body; after the processing is completed, the piston rod of the cylinder 211 retracts, the vertical positioning block 22 leaves the valve body, the bolt 322 on the second mounting base 321 is loosened, and the valve body is taken out.

[0043] This utility model uses specific embodiments to illustrate the principle and implementation of the utility model. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the utility model. Therefore, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A positioning fixture for machining a speed reducer valve body, the speed reducer valve body comprising a housing, the housing comprising an integrally formed bottom and a top, characterized in that, include: Workbench; A vertical positioning mechanism includes at least one drive unit and a vertical positioning block disposed on the output shaft of the drive unit, the vertical positioning block being used to position the housing vertically; The horizontal positioning mechanism includes a first positioning member fixedly connected to the worktable and a second positioning member movably connected to the worktable, wherein the first positioning member and the second positioning member position the outer casing from both sides.

2. The positioning fixture for machining the reducer valve body according to claim 1, characterized in that, The positioning fixture also includes multiple pads, which are spaced apart on the worktable to support the outer shell from the bottom.

3. The positioning fixture for machining the reducer valve body according to claim 2, characterized in that, The multiple pads enclose a space, and a window penetrating the workbench is provided at a location corresponding to the space.

4. The positioning fixture for machining the reducer valve body according to claim 1, characterized in that, The drive unit includes a cylinder fixed to the workbench and a first mounting base. The first mounting base is located on the side of the cylinder facing the housing. A connecting rod is hinged to the first mounting base. The vertical positioning block is hinged to both the piston rod of the cylinder and the connecting rod.

5. The positioning fixture for machining the reducer valve body according to claim 4, characterized in that, The cylinder body is fixed below the worktable, and the piston rod of the cylinder passes through the worktable.

6. The positioning fixture for machining the reducer valve body according to claim 1, characterized in that, The first positioning component is a V-shaped positioning block fixedly connected to the workbench. The V-shaped positioning block has a first positioning surface and a second positioning surface on the side facing the outer shell for contacting the outer shell.

7. The positioning fixture for machining the reducer valve body according to claim 6, characterized in that, The angle between the first positioning surface and the second positioning surface is greater than 90° and less than 180°.

8. The positioning fixture for machining the reducer valve body according to claim 1, characterized in that, The second positioning element includes a second mounting base fixed to the workbench and a bolt passing through the second mounting base, the bolt being used to position the housing.

Images