Tool for detecting angle of swash plate body of plunger pump

Abstract

The utility model discloses a tool for detecting the angle of a swash plate body of a plunger pump, which comprises a base and a vertical frame arranged on the base, the base is provided with a first slide rail and a clamp arranged on the first slide rail in a sliding manner, and the clamp is used for clamping the swash plate body; a second sliding rail and a pressing frame slidably installed on the second sliding rail are installed on the vertical frame, the pressing frame is matched with the clamp to press the swash plate body, a first air cylinder for pulling the clamp to slide is installed on the base, and a second air cylinder for pulling the pressing frame to slide is installed on the vertical frame; a measuring support and a positioning disc installed at the bottom of the measuring support are installed on the pressing frame in a floating mode, the positioning disc is used for positioning the swash plate body, and two measuring holes are formed in the positioning disc at intervals. A height measuring module is slidably mounted on the measuring bracket, the height measuring module comprises a longitudinal elastic floating measuring sensor, and a third cylinder for pulling the measuring sensor to move between the two measuring holes is mounted on the measuring bracket; and the angle detection accuracy of the swash plate body is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, and in particular to a tooling for testing the angle of the swashplate of a plunger pump. Background Technology

[0002] The swash plate is a key component of a plunger pump. After machining, the angle of its inclined surface needs to be inspected to ensure dimensional quality. Currently, the main inspection method involves using a measuring ruler with a specific tilt angle. Different measuring rulers need to be designed for different angles of swash plates, requiring multiple types of rulers for different series of swash plates. This method is not suitable for inspecting swash plates with varying inclinations. Furthermore, the measuring ruler is prone to deformation after prolonged use, leading to inaccurate test results and reduced accuracy. Utility Model Content

[0003] (a) Technical issues

[0004] The purpose of this invention is to provide a tooling for detecting the angle of a swashplate in a plunger pump, thereby solving the problem that existing inclination detection methods cannot adapt to the detection of swashplate angles with different inclinations.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A swashplate angle detection fixture for a plunger pump includes a base and a stand mounted on the base. A first slide rail and a clamp slidably mounted on the first slide rail are mounted on the base, the clamp being used to hold the swashplate. A second slide rail and a pressure frame slidably mounted on the second slide rail are mounted on the stand, the pressure frame cooperating with the clamp to press the swashplate. A first cylinder is mounted on the base to pull the clamp to slide, and a second cylinder is mounted on the stand to pull the pressure frame to slide. A measuring bracket and a positioning plate mounted on the bottom of the measuring bracket are floatingly mounted on the pressure frame, the positioning plate being used to position the swashplate, and two measuring holes are spaced apart on the positioning plate. A height measuring module is slidably mounted on the measuring bracket, the height measuring module including a longitudinally elastically floating measuring sensor, and a third cylinder is mounted on the measuring bracket to pull the measuring sensor to move between the two measuring holes.

[0008] Preferably, the positioning disk is provided with a positioning boss, and at least two elastic positioning posts are installed on the positioning disk at intervals.

[0009] Preferably, the height measurement module includes a third slide rail mounted on a measuring bracket and a sliding seat slidably mounted on the third slide rail, and the measuring sensor is fixedly mounted on the sliding seat.

[0010] Preferably, the pressure frame is equipped with at least two elastic limiting posts located above the measuring bracket and spaced apart.

[0011] Preferably, the pressure frame is provided with a floating sleeve and a floating column slidably mounted on the floating sleeve, and the floating column is fixed on the measuring bracket.

[0012] Preferably, a first measuring plate is mounted on the rear side of the measuring bracket, and a first photoelectric sensor for detecting the first measuring plate is mounted on the pressure frame.

[0013] Preferably, a second measuring plate is mounted on the front side of the measuring bracket, and a second photoelectric sensor for detecting the second measuring plate is mounted on the pressure frame.

[0014] Preferably, a limit switch for detecting the sliding stroke of the clamp is installed on the base.

[0015] Preferably, the clamp includes a sliding plate mounted on the first slide rail, a positioning plate mounted on the sliding plate, a positioning groove for positioning the swashplate, and clamping members for pressing the swashplate on both sides of the positioning plate; the sliding plate is provided with a positioning block for touching the limit switch.

[0016] (III) Beneficial Effects

[0017] The first cylinder pulls the clamp to move on the first slide rail, thereby enabling the swashplate to move between the clamping position and the detection position. The second cylinder pushes the pressure frame down to cooperate with the clamp to further press the swashplate. The floating effect of the measuring bracket ensures that the positioning plate and the swashplate form a positioning fit. Then, the third cylinder pulls the height measuring module to move the measuring sensor into the two measuring holes to measure the height of the two positions on the swashplate. The tilt angle of the swashplate is obtained by subsequent data processing based on the height difference. Attached Figure Description

[0018] Figure 1 This is a first-view perspective three-dimensional structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a second-view perspective three-dimensional structural diagram of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the measuring bracket mounting positioning plate in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning disk in an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the fixture in an embodiment of the present utility model;

[0023] exist Figures 1 to 5 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0024] 1. Base; 2. Stand; 3. First slide rail; 4. Clamp; 41. Sliding plate; 42. Positioning plate; 43. Positioning groove; 44. Clamping piece; 45. Positioning block; 5. Second slide rail; 6. Pressing frame; 7. First cylinder; 8. Second cylinder; 9. Measuring bracket; 10. Positioning plate; 11. Measuring hole; 12. Height measuring module; 121. Measuring sensor; 122. Third slide rail; 123. Sliding seat; 13. Third cylinder; 14. Positioning boss; 15. Elastic positioning post; 17. Elastic limiting post; 18. Floating sleeve; 19. Floating post; 20. First measuring plate; 21. First photoelectric sensor; 22. Second measuring plate; 23. Second photoelectric sensor; 24. Limit switch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] See Figures 1-5 As shown in the figure, an embodiment of this utility model proposes a swashplate angle detection fixture for a plunger pump, used to detect the inclination angle of the swashplate after it has been machined. Specifically, it includes a base 1 and a stand 2 mounted on the base 1. A first slide rail 3 and a clamp 4 slidably mounted on the first slide rail 3 are installed on the base 1. The clamp 4 is used to hold the swashplate. Simultaneously, a second slide rail 5 and a pressure frame 6 slidably mounted on the second slide rail 5 are installed on the stand 2. The pressure frame 6 cooperates with the clamp 4 to press the swashplate. A first cylinder 7 is installed on the base 1 to pull the clamp 4 to slide, and a second cylinder 8 is installed on the stand 2 to pull the pressure frame 6 to slide. The first cylinder 7 pulls the clamp 4 to reciprocate between the loading position and the detection position, using the clamp 4 to clamp and position the swashplate. After moving to the detection position, the second cylinder 8 pushes the pressure frame 6 downwards to cooperate with the clamp 4 to press the swashplate, ensuring that the swashplate does not move during the detection process.

[0027] Meanwhile, a measuring bracket 9 and a positioning plate 10 installed at the bottom of the measuring bracket 9 are floatingly mounted on the pressure frame 6. The positioning plate 10 is used to position the swashplate body. Two measuring holes 11 are opened at intervals on the positioning plate 10. During the downward movement of the pressure frame 6, the floating measuring bracket 9 drives the positioning plate 10 to further contact the swashplate body to form a position. The measuring holes 11 are holes with a pre-set spacing for measuring height. After obtaining the height values ​​of the swashplate body corresponding to the two measuring holes 11, the height difference can be calculated. Combined with the pre-set spacing, the tilt angle of the swashplate body can be calculated. Of course, the specific data processing and algorithms can all adopt mature existing technologies.

[0028] Specifically, a height measuring module 12 is slidably mounted on the measuring bracket 9. The height measuring module 12 includes a longitudinally elastically floating measuring sensor 121. After contacting the swashplate, the measuring sensor 121 feeds back measured height data. The measuring sensor 121 is an existing product, internally integrating an elastic floating mechanism, such as a structure composed of a lead screw and a spring, to allow the measuring sensor 121 to have longitudinal displacement adjustment. Specifically, the entire measuring sensor 121 itself becomes an integrated product, capable of integrating its own longitudinal displacement adjustment mechanism. Simultaneously, a third cylinder 13 is installed on the measuring bracket 9 to pull the measuring sensor 121 between two measuring holes 11. The third cylinder 13 pulls the measuring sensor 121 to extend into and contact the swashplate at the two measuring holes 11, obtaining height measurement values ​​at the corresponding positions. Finally, based on a preset existing algorithm, the height measurement values ​​at the two positions are converted into the tilt angle data of the swashplate. During actual testing, the tilt angle data is visually displayed to facilitate quick judgment of whether the detection angle meets design requirements.

[0029] When measuring the tilt angle of the swash plate using the above structure, it is only necessary to position and clamp the swash plate, which is not affected by the different tilt angles of the swash plate. Therefore, for swash plates with different tilt angles, it is only necessary to measure the height value through the two measuring holes 11 to obtain the angle data, and the depth of human involvement in the measurement process is reduced, which can ensure more accurate test results.

[0030] To facilitate positioning after the positioning disc 10 contacts the swashplate, a positioning boss 14 is provided on the positioning disc 10. At least two elastic positioning posts 15 are installed at intervals on the positioning disc 10. After the positioning boss 14 presses against the swashplate, the two elastic positioning posts 15 form a limit on the swashplate, further realizing anti-rotation limit. The elastic positioning posts 15 are elastic structures with internally integrated springs, and the protruding ends have elastic floating stroke. Mature products can be used.

[0031] The height measurement module 12 includes a third slide rail 122 mounted on the measuring bracket 9 and a sliding seat 123 slidably mounted on the third slide rail 122. The measuring sensor 121 is fixedly mounted on the sliding seat 123. The sliding seat 123 slides on the third slide rail 122 to ensure the stability of the measuring sensor 121 when it is carried between the two measuring holes 11.

[0032] To further limit the floating stroke of the measuring bracket 9, at least two elastic limiting posts 17 are installed on the pressure frame 6, located above the measuring bracket 9 and spaced apart. The elastic limiting posts 17 are elastic structures with internally integrated springs, and the protruding ends have elastic floating strokes. Mature products can be used to limit the measuring bracket 9 and provide a buffer when the measuring bracket 9 floats.

[0033] Specifically, the pressure frame 6 is provided with a floating sleeve 18 and a floating column 19 slidably mounted on the floating sleeve 18. The floating column 19 is fixed on the measuring bracket 9. A spring is sleeved on the floating column 19, and the top of the spring is fixed on the floating column 19, forming a floating buffer when it slides with the floating column 19.

[0034] To monitor the floating position of the measuring frame and prevent the measuring sensor 121 from failing to contact the swashplate when measuring height, a first measuring plate 20 is installed on the rear side of the measuring bracket 9. A first photoelectric sensor 21 for detecting the first measuring plate 20 is installed on the pressure frame 6. The floating position of the rear side of the measuring bracket 9 is detected by the first photoelectric sensor 21 detecting the movement of the first measuring plate 20. Simultaneously, a second measuring plate 22 is installed on the front side of the measuring bracket 9. A second photoelectric sensor 23 for detecting the second measuring plate 22 is installed on the pressure frame 6. The movement of the second measuring plate 22 is detected by the second photoelectric sensor 23, thus detecting the front side of the measuring frame and monitoring the overall floating stability of the measuring frame.

[0035] Meanwhile, a limit switch 24 for detecting the sliding stroke of the clamp 4 is installed on the base 1. After the limit switch 24 detects the sliding position of the clamp 4, it is determined that the clamp 4 has moved to the detection position.

[0036] The fixture 4 includes a sliding plate 41 mounted on the first slide rail 3. A positioning plate 42 is mounted on the sliding plate 41. The positioning plate 42 has a positioning groove 43 for positioning the swashplate. Clamping members 44 for pressing the swashplate are located on both sides of the positioning plate 42. After the swashplate is placed through the positioning groove 43, the clamping members 44 are rotated to press the swashplate. Simultaneously, a positioning block 45 is provided on the sliding plate 41 for touching the limit switch 24. When the positioning block 45 moves with the fixture 4 to the detection position, it touches the limit switch 24 to confirm that the detection position has been reached.

[0037] In this embodiment, the electrical control-related circuit parts all adopt existing technologies. This embodiment mainly describes the tooling structure for realizing detection, so as to adapt to the detection of different types of swash plates or swash plates with different tilt angles.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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 limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A swash plate body angle detection tool for a plunger pump, characterized by: The device includes a base (1) and a stand (2) mounted on the base (1). The base (1) is equipped with a first slide rail (3) and a clamp (4) slidably mounted on the first slide rail (3). The clamp (4) is used to clamp the swash plate. The stand (2) is equipped with a second slide rail (5) and a pressure frame (6) slidably mounted on the second slide rail (5). The pressure frame (6) cooperates with the clamp (4) to press the swash plate. The base (1) is equipped with a first cylinder (7) that pulls the clamp (4) to slide. The stand (2) is equipped with a second cylinder (8) that pulls the pressure frame (6) to slide. A measuring bracket (9) and a positioning plate (10) are floatingly mounted on the pressure frame (6). The positioning plate (10) is used to position the inclined plate body. Two measuring holes (11) are opened at intervals on the positioning plate (10). A height measuring module (12) is slidably mounted on the measuring bracket (9). The height measuring module (12) includes a longitudinally elastically floating measuring sensor (121). A third cylinder (13) is mounted on the measuring bracket (9) to pull the measuring sensor (121) between two measuring holes (11).

2. The swash plate angle detection tool of the plunger pump according to claim 1, characterized in that: The positioning disk (10) is provided with a positioning boss (14), and at least two elastic positioning posts (15) are installed at intervals on the positioning disk (10).

3. The swash plate angle detection tool of the plunger pump according to claim 1, characterized in that: The height measurement module (12) includes a third slide rail (122) mounted on a measuring bracket (9) and a sliding seat (123) slidably mounted on the third slide rail (122), and the measuring sensor (121) is fixedly mounted on the sliding seat (123).

4. The swash plate angle detection tool of the plunger pump according to claim 1, characterized in that: At least two elastic limiting posts (17) are installed on the pressure frame (6) above the measuring bracket (9) and spaced apart.

5. The swash plate angle detection tool of the plunger pump according to claim 1, characterized in that: The pressure frame (6) is provided with a floating sleeve (18) at intervals and a floating column (19) slidably mounted on the floating sleeve (18). The floating column (19) is fixed on the measuring bracket (9).

6. The swash plate angle detection tool of a plunger pump according to any one of claims 1-5, characterized in that: A first measuring plate (20) is installed on the rear side of the measuring bracket (9), and a first photoelectric sensor (21) for detecting the first measuring plate (20) is installed on the pressure frame (6).

7. The swash plate angle detection tool of a plunger pump according to claim 6, characterized in that: A second measuring plate (22) is installed on the front side of the measuring bracket (9), and a second photoelectric sensor (23) for detecting the second measuring plate (22) is installed on the pressure frame (6).

8. The swash plate angle detection tool of a plunger pump according to claim 7, characterized in that: A limit switch (24) for detecting the sliding stroke of the clamp (4) is installed on the base (1).

9. The swash plate angle detection tool of a plunger pump according to claim 8, characterized in that: The clamp (4) includes a sliding plate (41) mounted on the first slide rail (3), a positioning plate (42) mounted on the sliding plate (41), a positioning groove (43) for positioning the swash plate body on the positioning plate (42), and clamping members (44) for pressing the swash plate body on both sides of the positioning plate (42). The sliding plate (41) is provided with a positioning block (45) for touching the limit switch (24).

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