Machining clamp for flashboard of gate valve

Abstract

The machining clamp comprises a bottom plate, two sets of soaking grooves are formed in the upper end face of the bottom plate, two sets of liquid discharging pipes are fixedly connected to the side wall of the bottom plate and communicated with the interiors of the two sets of soaking grooves respectively, two sets of side plates are fixedly connected to the upper end face of the bottom plate, and two sets of lead screw sleeves are slidably connected between the two sets of side plates. The soaking groove is in smooth transition to the end face of the bottom plate, and an elastic mechanism for driving the clamping plate to be tightly attached to the inner bottom of the soaking groove is installed on the outer wall of the sliding rod. By designing the soaking tank and cleaning the clamping plate through the cleaning solution when the clamping plate slides in, greasy dirt on the clamping plate is effectively removed, the adverse effect of greasy dirt accumulation on clamping force is prevented, after the greasy dirt is removed through the chemical effect of the cleaning solution, the clamping plate can keep high friction force and stable clamping force, and the clamping plate is not prone to falling off. Therefore, the workpiece is firmly fixed in the machining process, displacement or vibration is reduced, and machining precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially relates to the processing fixture of the gate plate of gate valve. BACKGROUND

[0002] The gate valve includes two parts of valve body and gate plate, wherein the gate plate is the opening and closing part, the movement direction of the gate plate is perpendicular to the fluid direction, the gate plate has two sealing surfaces, the two sealing surfaces form a wedge shape, when the gate valve is closed, the sealing surfaces press the gate plate into the gate plate channel on the valve body by the medium pressure, currently, when the gate plate of the gate valve is processed, the fixture is generally needed to be fixed and processed.

[0003] In the prior art, the clamping plate and other clamping components are mainly relied on to clamp and fix the gate plate, and during the processing of the gate plate, cutting fluid, lubricating oil or cooling liquid is usually used to reduce friction, cooling and improve processing precision, the cutting fluid and lubricating oil can flow or splash during the processing and adhere to the surface of the clamping plate, the oil stains accumulated on the surface of the clamping plate can cause the surface friction to be reduced and the clamping force to be weakened, thereby affecting the fixing effect of the fixture on the gate plate, increasing the displacement or vibration of the workpiece during the processing, and further affecting the processing precision, therefore, the processing fixture of the gate plate of the gate valve is needed to be proposed for the above problems. UTILITY MODEL CONTENT

[0004] The utility model discloses a processing fixture of the gate plate of gate valve is provided to solve the shortcoming in the prior art.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] The processing fixture of the gate plate of gate valve, including the bottom plate, the bottom plate upper end face is equipped with two groups of soaking grooves, the bottom plate side wall is fixedly connected with two groups of liquid discharge pipes, and is communicated with two groups of soaking grooves respectively, the bottom plate upper end face is fixedly connected with two groups of side plates, two groups of the side plate are slidably connected with two groups of lead screw sleeves, the lead screw sleeve outer wall is slidably connected with two groups of sliding rods, the sliding rod coaxial fixedly connected with the connecting rod, the connecting rod outside installs the clamping plate, the clamping plate is slidably connected in the bottom plate end face and the soaking groove, the soaking groove is smoothly connected to the bottom plate end face, the sliding rod outer wall is installed with the elastic mechanism that drives the clamping plate to be closely attached in the bottom of soaking groove.

[0007] Preferably, the elastic mechanism includes a limiting block fixedly connected to the end of the sliding rod, a spring is sleeved on the outer wall of the sliding rod, one end of the spring is fixedly connected with the end face of the limiting block, and the other end of the spring is fixedly connected with the lead screw sleeve.

[0008] Preferably, the end of the connecting rod is fixedly connected with a fixed plate, the fixed plate is in contact with the outer wall of the clamping plate, and the fixed plate is connected with the clamping plate by a screw.

[0009] Preferably, a double-end threaded rod is rotationally connected between the two groups of side plates, and the two groups of lead screw sleeves are threadedly connected on the threaded segments of the double-end threaded rod.

[0010] Preferably, a limiting rod is fixedly connected between the two groups of side plates, and the two groups of lead screw sleeves are slidingly connected on the outer wall of the limiting rod.

[0011] Preferably, a servo motor is fixedly connected on the side wall of one group of side plates, and the output shaft of the servo motor is coaxially fixedly connected with the double-end threaded rod.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a soaking groove and cleaning liquid when the clamping plate slides in, effectively removes the oil dirt on the clamping plate, prevents the adverse effect of oil dirt accumulation on clamping force, and after the chemical action of the cleaning liquid removes the oil dirt, the clamping plate can keep high friction and stable clamping force, thereby ensuring firm fixation of the workpiece in the machining process, reducing displacement or vibration, and significantly improving machining precision.

[0014] 2. The utility model discloses a double-end threaded rod driving design, which accurately controls the rotation of the double-end threaded rod through a servo motor, realizes stable and accurate adjustment of the clamping plate, reversely drives the double-end threaded rod through the servo motor, drives two groups of clamping plates to slide to the soaking groove, and guarantees the stability of the clamping plate when sliding in through a spring, thereby ensuring that the cleaning liquid can fully contact the clamping plate and complete efficient cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model discloses a machining clamp structure diagram of the gate plate of the gate valve.

[0016] Figure 2 The utility model discloses a machining clamp structure diagram of the gate plate of the gate valve. Figure 1 The utility model discloses a machining clamp structure diagram of the gate plate of the gate valve.

[0017] Figure 3 The utility model discloses a machining clamp structure diagram of the gate plate of the gate valve. Figure 2 The utility model discloses a machining clamp structure diagram of the gate plate of the gate valve.

[0018] In the drawing: 1, bottom plate, 2, soaking groove, 3, liquid discharge pipe, 4, side plate, 5, double-end threaded rod, 6, limiting rod, 7, lead screw sleeve, 8, connecting rod, 9, fixed plate, 10, screw, 11, clamping plate, 12, limiting block, 13, spring. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Reference Figures 1-3 The machining clamp of the gate plate of the gate valve comprises a bottom plate 1, two groups of soaking grooves 2 are formed in the upper end face of the bottom plate 1, two groups of liquid discharge pipes 3 are fixedly connected to the side walls of the bottom plate 1 and are respectively communicated with the two groups of soaking grooves 2, two groups of side plates 4 are fixedly connected to the upper end face of the bottom plate 1, two groups of screw sleeve 7 are slidingly connected between the two groups of side plates 4, two groups of sliding rods 12 are slidingly connected to the outer walls of the screw sleeve 7, a connecting rod 8 is fixedly connected coaxially to the sliding rod 12, a clamping plate 11 is mounted to the outer part of the connecting rod 8, the clamping plate 11 is slidingly connected to the end face of the bottom plate 1 and the soaking groove 2, the soaking groove 2 is smoothly connected to the end face of the bottom plate 1, and an elastic mechanism is mounted to the outer wall of the sliding rod 12 and is used for driving the clamping plate 11 to tightly adhere to the bottom of the soaking groove 2; the soaking groove 2 is arranged to be filled with cleaning liquid, the clamping plate 11 is driven to slide into the soaking groove 2 by the screw sleeve 7, and cutting fluid, lubricating oil or cooling liquid and other oil stains adhered to the surface of the clamping plate 11 in the machining process are removed, so that the oil stains are prevented from accumulating on the surface of the clamping plate 11, the clamp is kept clean, and the negative influence of the oil stains on the clamping force is avoided.

[0021] The elastic mechanism comprises a limiting block 13 fixedly connected to the end of the sliding rod 12, a spring 14 is sleeved on the outer wall of the sliding rod 12, one end of the spring 14 is fixedly connected to the end face of the limiting block 13, the other end of the spring 14 is fixedly connected to the screw sleeve 7, a fixed plate 9 is fixedly connected to the end of the connecting rod 8, the fixed plate 9 is in contact with the outer wall of the clamping plate 11 and is connected to the clamping plate 11 through a screw 10, a double-headed threaded rod 5 is rotatably connected between the two groups of side plates 4, the two groups of screw sleeves 7 are threadedly connected to the threaded sections of the double-headed threaded rod 5, a limiting rod 6 is fixedly connected between the two groups of side plates 4, and the two groups of screw sleeves 7 are slidingly connected to the outer wall of the sliding rod 12; one of the side plates 4 is fixedly connected to a servo motor, and the output shaft of the servo motor is fixedly connected coaxially to the double-headed threaded rod 5; the intervention of the spring 14 can ensure that the clamping plate 11 can be fully contacted with the cleaning liquid after sliding into the soaking groove 2.

[0022] In the utility model, before machining, the soaking groove 2 is ensured to be filled with appropriate cleaning liquid, then the servo motor is started, the double-headed threaded rod 5 is driven to rotate, the screw sleeve 7 is driven to slide along the threaded section, the sliding rod 12 and the clamping plate 11 are driven to slide to the outer wall of the gate plate, until the clamping plate 11 is in contact with the outer wall of the gate plate, the gate plate is clamped and fixed, then the servo motor drives the double-headed threaded rod 5 to reverse, the two groups of clamping plates 11 are driven to slide to the two soaking grooves 2, the spring 14 on the outer wall of the sliding rod 12 ensures that the clamping plate 11 can be fully contacted with the cleaning liquid by the elastic adjustment of the spring 14 when sliding into the soaking groove 2, and the smooth transition design of the groove opening of the soaking groove 2 can ensure the continuity of the sliding of the clamping plate 11.

[0023] The cleaning liquid removes the oil dirt such as cutting fluid, lubricating oil and cooling fluid on the clamping plate 11 through chemical action, ensures the cleaning of the surface of the clamp, and can control the soaking time of the clamping plate 11 in the cleaning liquid according to the requirement, ensures the cleaning effect, and thereby improves the subsequent machining precision.

[0024] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. Machining fixture for the gate of a gate valve, comprising a base plate (1), characterized in that, The bottom plate (1) upper end face is provided with two groups of soaking grooves (2), the bottom plate (1) side wall is fixedly connected with two groups of liquid discharge pipes (3), and is respectively communicated with two groups of soaking grooves (2), the bottom plate (1) upper end face is fixedly connected with two groups of side plates (4), two groups of the side plates (4) are slidably connected with two groups of lead screw sleeves (7), the lead screw sleeve (7) outer wall is slidably connected with two groups of slide bars (12), the slide bar (12) coaxially fixedly connected with connecting rod (8), the connecting rod (8) outside is installed with clamping plate (11), the clamping plate (11) is slidably connected in the bottom plate (1) end face and soaking groove (2), the soaking groove (2) is smoothly connected to the bottom plate (1) end face, the slide bar (12) outer wall is installed with elastic mechanism that drives clamping plate (11) tightly close in the bottom of soaking groove (2).

2. The machining jig for the gate of the gate valve according to claim 1, characterized by, The elastic mechanism includes a limiting block (13) fixedly connected to the end of the slide bar (12), the slide bar (12) is provided with a spring (14) on the outer wall, one end of the spring (14) is fixedly connected with the end face of the limiting block (13), the other end of the spring (14) is fixedly connected with the lead screw sleeve (7).

3. The machining jig for the gate of the gate valve according to claim 2, characterized by, The end of the connecting rod (8) is fixedly connected with a fixed plate (9), the fixed plate (9) is in contact with the outer wall of the clamping plate (11), and is connected with the clamping plate (11) by a screw (10).

4. The machining jig for the gate of the gate valve according to claim 3, characterized by, Two groups of the side plates (4) are rotatably connected with a double-headed threaded rod (5), and two groups of the lead screw sleeves (7) are threadedly connected on the threaded segments of the double-headed threaded rod (5).

5. The machining jig for the gate of the gate valve according to claim 4, characterized by, Two groups of the side plates (4) are fixedly connected with a limiting rod (6), and two groups of the lead screw sleeves (7) are slidably connected on the outer wall of the slide bar (12).

6. The machining jig for the gate of the gate valve according to claim 5, characterized by One of the side plates (4) is fixedly connected with a servo motor on the side wall, and the output shaft of the servo motor is coaxially fixedly connected with the double-headed threaded rod (5).

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