Clamp for valve seat machining

Abstract

The utility model discloses a clamp for valve seat machining, and relates to the technical field of valve seat machines. The clamp for valve seat machining comprises a bottom plate, a first supporting plate is fixedly connected to the bottom plate, a sliding groove is formed in the bottom plate, a threaded rod is rotatably connected to the interior of the sliding groove, the bottom plate is slidably connected with a second supporting plate, and the second supporting plate is in threaded connection with the threaded rod; one side of the bottom plate is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with the threaded rod; a servo motor is fixedly connected to the first supporting plate, a drill bit is arranged at the end, away from the servo motor, of the first supporting plate, and the drill bit is fixedly connected with the output end of the servo motor. According to the clamp for valve seat machining, the connecting rod and the clamping plate are gradually folded, then a valve seat is fixed, the connecting rod and the clamping plate are gradually folded through the limiting groove, and therefore the clamping plate can effectively clamp and fix the valve seats with different sizes when facing the valve seats with different sizes, and the adaptability of the clamp is improved.

Description

Technical Field

[0001] This utility model relates to the field of valve seat machining technology, and in particular to a fixture for valve seat machining. Background Technology

[0002] The valve seat is a detachable surface component inside the valve, used to support the valve core in the fully closed position and form a sealing pair. During the processing of the valve seat, holes need to be drilled on its surface. During the drilling process, a fixture is needed to hold the valve seat to fix it and facilitate the drilling process.

[0003] Patent application number CN201922280699.2 discloses a fixture for machining valve seats. This solution addresses the problem that some fixtures have difficulty determining the center of the valve seat, which is not conducive to ensuring that the mounting groove, oil hole and valve seat are concentric. However, this mechanism cannot effectively and quickly fix valve seats of different diameters, thus reducing the adaptability of the equipment. Therefore, a fixture for machining valve seats is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a fixture for machining valve seats that can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixture for machining valve seats, comprising a base plate, wherein a first support plate is fixedly connected to the base plate, a groove is provided on the base plate, a threaded rod is rotatably connected inside the groove, a second support plate is slidably connected to the base plate, and the second support plate is threadedly connected to the threaded rod.

[0006] A drive motor is fixedly connected to one side of the base plate, and the output end of the drive motor is fixedly connected to the threaded rod.

[0007] A servo motor is fixedly connected to the first support plate, and a drill bit is provided at the end of the first support plate away from the servo motor. The drill bit is fixedly connected to the output end of the servo motor.

[0008] A clamping mechanism is provided on the side of the second support plate opposite to the first support plate.

[0009] Preferably, the clamping mechanism includes a connecting disc, which is fixedly connected to the second support plate, and a clamping disc is rotatably connected to the connecting disc;

[0010] The clamping plate has shaft holes and four clamping slots, and clamping plates are slidably connected inside each clamping slot.

[0011] The bottom of the clamping groove is provided with a through groove, and a connecting rod is slidably connected inside the through groove. The connecting rod is fixedly connected to the clamping plate.

[0012] A spiral-shaped limiting groove is provided on the side of the connecting disc near the clamping disc, and one end of the connecting rod is slidably connected inside the limiting groove.

[0013] Preferably, the four clamping slots are arranged in a cross-shaped array.

[0014] Preferably, magnets are installed on opposite sides of the clamping disk and the connecting disk, and the magnets attract each other.

[0015] Preferably, the end of the connecting rod located inside the limiting groove is a sphere.

[0016] Preferably, the bottom of the second support plate is provided with a rectangular protrusion, which is located inside the slide groove and is threadedly connected to the threaded rod.

[0017] Preferably, a limiting shaft is fixedly connected inside the clamping groove, and the clamping plate is slidably connected to the limiting shaft.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) The fixture for machining the valve seat places the valve seat between four clamping plates. When the clamping plate is rotated, the connecting rod gradually moves towards the center of the spiral limiting groove. Therefore, under the restriction of the limiting groove, the connecting rod and the clamping plate gradually close together, thereby fixing the valve seat. The limiting groove allows the connecting rod and the clamping plate to gradually close together, thus enabling the clamping plate to effectively clamp and fix valve seats of different sizes, thereby improving the adaptability of the device.

[0020] (2) The clamping fixture of the valve seat is equipped with magnets. Therefore, after the clamping plate rotates to the designated position, the mutual magnetic attraction between the magnets can fix the clamping plate, thereby ensuring that the position of the clamping plate will not change, thus ensuring the fixing effect of the valve seat. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Figure 1 This is a schematic diagram of a fixture for machining a valve seat according to the present invention;

[0023] Figure 2 This is a schematic diagram showing the disassembled connection disc and clamping disc of this utility model;

[0024] Figure 3 This utility model Figure 1Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the clamping plate of this utility model.

[0026] Reference numerals in the attached drawings: 1. Base plate; 2. First support plate; 3. Servo motor; 4. Drive motor; 5. Drill bit; 6. Slide groove; 7. Threaded rod; 8. Second support plate; 9. Connecting disc; 10. Clamping disc; 11. Clamping plate; 12. Clamping groove; 13. Through groove; 14. Connecting rod; 15. Magnet; 16. Limiting groove; 17. Limiting shaft. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. 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.

[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-4 This utility model provides a technical solution: a fixture for machining valve seats, including a base plate 1, a first support plate 2 fixedly connected to the base plate 1, a sliding groove 6 opened on the base plate 1, a threaded rod 7 rotatably connected inside the sliding groove 6, a second support plate 8 slidably connected to the base plate 1, and the second support plate 8 threadedly connected to the threaded rod 7.

[0032] A drive motor 4 is fixedly connected to one side of the base plate 1, and the output end of the drive motor 4 is fixedly connected to the threaded rod 7.

[0033] A servo motor 3 is fixedly connected to the first support plate 2. A drill bit 5 is provided at the end of the first support plate 2 away from the servo motor 3. The drill bit 5 is fixedly connected to the output end of the servo motor 3.

[0034] A clamping mechanism is provided on the side of the second support plate 8 opposite to the first support plate 2;

[0035] When the valve seat needs to be processed, it can be fixed by the clamping mechanism. At this time, the drive motor 4 is started, and the output end of the drive motor 4 drives the threaded rod 7 to rotate, thus causing the second support plate 8 to move towards the first support plate 2. At the same time, the servo motor 3 is started, and the output end of the servo motor 3 drives the drill bit 5 to rotate. As the second support plate 8 moves, the valve seat on the clamping device comes into contact with the drill bit 5, thus completing the drilling operation.

[0036] The bottom of the second support plate 8 is provided with a rectangular protrusion, which is located inside the slide groove 6 and is threadedly connected to the threaded rod 7.

[0037] The rectangular protrusions are designed to limit the movement of the second support plate 8, making it more stable and smooth during movement.

[0038] The clamping mechanism includes a connecting disc 9, which is fixedly connected to the second support plate 8, and a clamping disc 10 is rotatably connected to the connecting disc 9.

[0039] The clamping plate 10 has a shaft hole and four clamping slots 12. Each clamping slot 12 is slidably connected to a clamping plate 11.

[0040] The bottom of the clamping groove 12 is provided with a through groove 13, and a connecting rod 14 is slidably connected inside the through groove 13. The connecting rod 14 is fixedly connected to the clamping plate 11.

[0041] A spiral-shaped limiting groove 16 is provided on the side of the connecting disc 9 near the clamping disc 10, and one end of the connecting rod 14 is slidably connected inside the limiting groove 16.

[0042] The four clamping slots 12 are arranged in a cross-shaped array;

[0043] When it is necessary to fix the valve seat, place the valve seat between the four clamping plates 11. At this time, rotate the clamping plate 10. As the clamping plate 10 rotates, the connecting rod 14 gradually moves towards its center inside the spiral limiting groove 16. Therefore, under the restriction of the limiting groove 16, the connecting rod 14 and the clamping plate 11 gradually close together, thereby fixing the valve seat.

[0044] Furthermore, magnets 15 are installed on opposite sides of the clamping disk 10 and the connecting disk 9, and the magnets 15 are magnetically attracted to each other.

[0045] By setting magnets 15, after the clamping plate 10 rotates to the designated position, the mutual magnetic attraction between the magnets 15 can fix the clamping plate 10, thereby ensuring that the position of the clamping plate 11 does not change, thus ensuring the fixing effect on the valve seat.

[0046] The limiting groove 16 causes the connecting rod 14 and the clamping plate 11 to gradually retract, thus enabling the clamping plate 11 to effectively clamp and fix valve seats of different sizes, thereby improving the adaptability of the device.

[0047] Among them, the end of the connecting rod 14 located inside the limiting groove 16 is a ball;

[0048] By setting one end of the connecting rod 14 inside the limiting groove 16 as a ball, the connecting rod 14 slides more smoothly inside the limiting groove 16.

[0049] Furthermore, a limiting shaft 17 is fixedly connected inside the clamping groove 12, and the clamping plate 11 is slidably connected to the limiting shaft 17;

[0050] The limiting shaft 17 is designed to limit the position of the clamping plate 11, thus making the clamping plate 11 more stable when sliding.

[0051] Working principle: When it is necessary to fix the valve seat, the valve seat is placed between the four clamping plates 11. At this time, the clamping plate 10 is rotated. As the clamping plate 10 rotates, the connecting rod 14 gradually moves towards the center of the spiral limiting groove 16. Therefore, under the restriction of the limiting groove 16, the connecting rod 14 and the clamping plate 11 gradually close together, thereby fixing the valve seat.

[0052] By setting magnets 15, after the clamping plate 10 rotates to the designated position, the mutual magnetic attraction between the magnets 15 can fix the clamping plate 10, thereby ensuring that the position of the clamping plate 11 does not change, thus ensuring the fixing effect on the valve seat.

[0053] The limiting groove 16 causes the connecting rod 14 and the clamping plate 11 to gradually retract, thus enabling the clamping plate 11 to effectively clamp and fix valve seats of different sizes, thereby improving the adaptability of the device.

[0054] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fixture for machining valve seats, comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to the first support plate (2), and the base plate (1) is provided with a sliding groove (6). The sliding groove (6) is rotatably connected to a threaded rod (7). The base plate (1) is slidably connected to the second support plate (8), and the second support plate (8) is threadedly connected to the threaded rod (7). A drive motor (4) is fixedly connected to one side of the base plate (1), and the output end of the drive motor (4) is fixedly connected to the threaded rod (7); A servo motor (3) is fixedly connected to the first support plate (2). A drill bit (5) is provided at the end of the first support plate (2) away from the servo motor (3). The drill bit (5) is fixedly connected to the output end of the servo motor (3). A clamping mechanism is provided on the side of the second support plate (8) opposite to the first support plate (2).

2. The fixture for machining valve seats according to claim 1, characterized in that: The clamping mechanism includes a connecting disc (9), which is fixedly connected to the second support plate (8), and a clamping disc (10) is rotatably connected to the connecting disc (9); The clamping plate (10) has a shaft hole and four clamping slots (12) are provided on the clamping plate (10). Each clamping slot (12) is slidably connected to a clamping plate (11). A through groove (13) is provided at the bottom of the clamping groove (12), and a connecting rod (14) is slidably connected inside the through groove (13). The connecting rod (14) is fixedly connected to the clamping plate (11). A spiral-shaped limiting groove (16) is provided on the side of the connecting disc (9) near the clamping disc (10), and one end of the connecting rod (14) is slidably connected inside the limiting groove (16).

3. The fixture for machining valve seats according to claim 2, characterized in that: The four clamping slots (12) are arranged in a cross-shaped array.

4. The fixture for machining valve seats according to claim 3, characterized in that: Magnets (15) are installed on opposite sides of the clamping disk (10) and the connecting disk (9), and the magnets (15) are attracted to each other.

5. The fixture for machining valve seats according to claim 4, characterized in that: The end of the connecting rod (14) located inside the limiting groove (16) is a sphere.

6. A fixture for machining valve seats according to claim 5, characterized in that: The bottom of the second support plate (8) is provided with a rectangular protrusion, which is located inside the slide groove (6) and is threadedly connected to the threaded rod (7).

7. The fixture for machining valve seats according to claim 6, characterized in that: The clamping groove (12) is fixedly connected to a limiting shaft (17), and the clamping plate (11) is slidably connected to the limiting shaft (17).

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