Angle positioning tool

Abstract

The utility model relates to an angle positioning tool, which belongs to the field of angle positioning tools and comprises a positioning seat, a sleeve hole is arranged on the positioning seat, a positioning block is fixedly connected onto the positioning seat, a sliding groove is arranged on the positioning seat, a limit block is slidably arranged in the sliding groove in a penetrating manner, and the sliding groove is matched with the limit block. The limiting block and the positioning seat are locked through a locking piece, and a clamping groove is formed in one end of the limiting block. The pin shaft is clamped into the clamping groove, the limiting block and the positioning seat are locked, relative fixation of the angle of the large rocker arm and the angle of the positioning seat is achieved, the small rocker arm is placed into the sleeve hole matched with the small rocker arm, relative fixation of the angle of the small rocker arm and the angle of the positioning seat are achieved, and angle positioning is achieved when the small rocker arm and the large rocker arm are in press fit.

Description

Technical Field

[0001] The utility model relates to an angle positioning tool, belonging to the field of angle positioning tool. Background Art

[0002] A turbine is a fan in a car or airplane engine that uses exhaust gas to blow fuel vapor into the engine, thereby improving engine performance. A turbine is a rotating power machine that converts the energy of a flowing working fluid into mechanical work.

[0003] The turbine casing consists of a compression casing, an intermediate casing and a volute casing. During the production process of the intermediate casing, a bushing is first press-fitted onto the casing. Then, after the large rocker arm is passed through the bushing, the small rocker arm needs to be connected to the large rocker arm. By rotating the large rocker arm, the small rocker arm controls the opening and closing of the exhaust valve on the turbine. There is a certain angle between the large rocker arm and the small rocker arm, and the large rocker arm and the small rocker arm usually adopt an interference fit and cannot be directly welded. That is, they need to be press-fitted first and then welded. However, when the small rocker arm is press-fitted, the angle between the large rocker arm and the small rocker arm is difficult to position, resulting in a large angle deviation (the angle requirement is ±1°), which affects product quality.

[0004] Therefore, there is a need for an angle positioning tool to achieve angle positioning when the large rocker arm and the small rocker arm are press-fitted. Summary of the Invention

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, an angle positioning tool is provided to achieve angle positioning of a large rocker arm and a small rocker arm during press-fitting.

[0006] The technical solution adopted by the utility model to solve the above problems is: an angle positioning tool, including a positioning seat, a sleeve hole is provided on the positioning seat, a positioning block is fixedly connected to the positioning seat, a slide groove is provided on the positioning seat, a limit block is slidably penetrated in the slide groove, the slide groove matches the limit block, the limit block is locked with the positioning seat by a locking piece, and a card slot is provided at one end of the limit block.

[0007] Preferably, the positioning block is detachably fixedly connected to the positioning seat by a first screw.

[0008] Preferably, one side of the positioning block is an arc-shaped surface.

[0009] Preferably, one end of the limiting block away from the slot is detachably fixedly connected to a handle.

[0010] Preferably, the locking member includes a guide groove and a second screw, the guide groove is provided on the limit block, the second screw is threadedly connected to the positioning seat, and one end of the second screw is inserted into the guide groove.

[0011] Preferably, the guide groove is in the shape of an elongated strip.

[0012] Preferably, the slot is U-shaped.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] The utility model provides an angle positioning tool, which realizes the relative fixation of the angle between the large rocker arm and the positioning seat by clamping the pin shaft into the clamping slot and locking the limit block and the positioning seat, and realizes the relative fixation of the angle between the small rocker arm and the positioning seat by placing the small rocker arm into the matching sleeve hole, that is, realizing the angle positioning when the small rocker arm and the large rocker arm are press-fitted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of an angle positioning tool of the utility model;

[0016] Figure 2 This is a top view of an angle positioning tool of the utility model;

[0017] Figure 3 for Figure 2 AA direction cross-sectional view;

[0018] Figure 4 It is a structural diagram of the positioning block;

[0019] Figure 5 It is a structural diagram of the limit block;

[0020] Figure 6 It is a structural diagram of the positioning seat;

[0021] Figure 7 This is a schematic diagram of the connection structure between an angle positioning tool and an intermediate shell of the utility model;

[0022] Figure 8 for Figure 7 A top view of

[0023] Figure 9 for Figure 8 BB direction cross-sectional view;

[0024] Figure 10 is a three-dimensional diagram of the middle shell;

[0025] Figure 11 is a top view of the middle shell;

[0026] Figure 12 for Figure 11 CC direction cross-sectional view;

[0027] Figure 13 Schematic diagram of the connection structure of the bushing, large rocker arm and small rocker arm.

[0028] in:

[0029] Positioning seat 1, sleeve hole 2, first screw 3, positioning block 4, arc surface 5, slide groove 6, limit block 7, slot 8, handle 9, guide groove 10, second screw 11;

[0030] Housing 100, bushing 200, large rocker arm 300, small rocker arm 400, circular step 500;

[0031] Rotating shaft 301 , connecting arm 302 , and pin shaft 303 . DETAILED DESCRIPTION

[0032] like Figure 1-13 As shown, an angle positioning tool in this embodiment includes a positioning seat 1, a sleeve hole 2 is provided on the positioning seat 1, a positioning block 4 is detachably fixedly connected to the positioning seat 1 by a first screw 3, one side of the positioning block 4 is an arc-shaped surface 5, a slide groove 6 is provided on the positioning seat 1, a limit block 7 is slidably penetrated in the slide groove 6, the slide groove 6 matches the limit block 7, the limit block 7 is locked with the positioning seat 1 by a locking member, and a card slot 8 is provided at one end of the limit block 7, and the card slot 8 is U-shaped;

[0033] The end of the limit block 7 away from the slot 8 is detachably fixedly connected to a handle 9;

[0034] The locking member includes a guide groove 10 and a second screw 11. The guide groove 10 is provided on the limit block 7 and is in the shape of an elongated strip. The second screw 11 is threadedly connected to the positioning seat 1, and one end of the second screw 11 is inserted into the guide groove 10.

[0035] The intermediate housing includes a housing 100, a bushing 200, a large rocker arm 300, and a small rocker arm 400. The housing 100 is provided with a circular step 500. The bushing 200 is vertically inserted into the housing 100. The large rocker arm 300 includes a rotating shaft 301, a connecting arm 302, and a pin 303. The rotating shaft 301 vertically passes through the bushing 200. The connecting arm 302 is arranged horizontally. One end of the connecting arm 302 is connected to the bottom end of the rotating shaft 301, and the pin 303 is connected to the other end of the connecting arm 302. The small rocker arm 400 is press-fitted onto the top end of the rotating shaft 301.

[0036] During the press-fitting of the small rocker arm 400 and the large rocker arm 300, the positioning seat 1 is fitted with the upper surface of the circular step 500, and the arc surface 5 on the positioning block 4 is fitted with the outer peripheral wall of the circular step 500. At the same time, the rotating shaft 301 passes through the sleeve hole 2. Then, the handle 9 is pulled to drive the limit block 7 to move in the slide groove 6 in the direction away from the rotating shaft 301, and the guide groove 10 and the locking thread produce relative movement, that is, the guide groove 10 is parallel to the sliding direction of the limit block 7. Then, rotate The shaft 301 is rotated, and the pin 303 is rotated to a position facing the slot 8, and then the handle 9 is pushed in the opposite direction to make the pin 303 snap into the slot 8. After that, the second screw 11 is rotated to achieve the locking between the limit block 7 and the positioning seat 1. Finally, the small rocker arm 400 is placed in the sleeve hole 2 and sleeved on the top of the shaft 301. In fact, the sleeve hole 2 matches the small rocker arm 400. Start the press and press the small rocker arm 400 down, that is, the press fit of the small rocker arm 400 and the large rocker arm 300 is completed.

[0037] Here, by snapping the pin shaft 303 into the slot 8 and locking the limit block 7 with the positioning seat 1, the angle of the large rocker arm 300 and the positioning seat 1 is relatively fixed, and by placing the small rocker arm 400 into the matching sleeve 2, the angle of the small rocker arm 400 and the positioning seat 1 is relatively fixed, that is, the angle positioning of the small rocker arm 400 and the large rocker arm 300 is achieved when they are press-fitted, and the angle error range of the large rocker arm 300 and the small rocker arm 400 press-fitted using the angle positioning tool is within ±0.4°, which meets the technical requirements.

[0038] In addition to the above embodiments, the present invention also includes other implementation methods. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the scope of protection of the claims of the present invention.

Claims

1. An angle positioning tool, characterized by: The invention comprises a positioning seat (1), wherein the positioning seat (1) is provided with a sleeve hole (2), a positioning block (4) is fixedly connected to the positioning seat (1), a slide groove (6) is provided on the positioning seat (1), a limit block (7) is slidably passed through the slide groove (6), the slide groove (6) matches the limit block (7), the limit block (7) is locked with the positioning seat (1) through a locking member, and a card slot (8) is provided at one end of the limit block (7).

2. The angle positioning tool according to claim 1, characterized in that: The positioning block (4) is detachably fixedly connected to the positioning seat (1) via a first screw (3).

3. The angle positioning tool according to claim 1, characterized in that: One side of the positioning block (4) is an arc-shaped surface (5).

4. The angle positioning tool according to claim 1, characterized in that: One end of the limit block (7) away from the slot (8) is detachably and fixedly connected to a handle (9).

5. The angle positioning tool according to claim 1, characterized in that: The locking member comprises a guide groove (10) and a second screw (11), wherein the guide groove (10) is provided on the limiting block (7), the second screw (11) is threadedly connected to the positioning seat (1), and one end of the second screw (11) is inserted into the guide groove (10).

6. The angle positioning tool according to claim 5, characterized in that: The guide groove (10) is in the shape of an elongated strip.

7. The angle positioning tool according to claim 1, characterized in that: The card slot (8) is U-shaped.

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