Tool clamp of automobile valve body

Abstract

The utility model relates to the technical field of automobile part manufacturing, and particularly discloses a tool clamp of an automobile valve body. The tool clamp comprises a base, a supporting cylinder and a supporting block are arranged on the base, a first pressing and holding mechanism is arranged on the side, away from the supporting block, of the supporting cylinder, and the first pressing and holding mechanism can press and hold a valve body 00 to be machined on the supporting face of the supporting cylinder; a positioning column, two positioning pins and three positioning protrusions are arranged on the top face of the supporting block, and the center of the positioning column and the centers of the two positioning pins are arranged in a triangular mode. The three positioning protrusions are arranged on the edges of the three sides of the top face of the supporting block correspondingly. The side, away from the supporting cylinder, of the supporting block and the two opposite sides of the supporting block are each provided with a second pressing and holding mechanism, and the three second pressing and holding mechanisms can press and hold the valve body 00 to be machined to the corresponding positioning protrusions. By means of the tool clamp, three faces of the valve body can be machined conveniently, the clamping frequency is reduced, and the machining efficiency and the machining precision can be improved easily.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts manufacturing, in particular to a fixture for an automobile valve body. Background Art

[0002] When machining the existing valve body for an automobile emission system, five surfaces of the valve body need to be machined. However, since the existing fixing method will block the working surfaces of the parts, in order to achieve multi-surface machining, multiple fixtures need to be used for multiple clamping operations, which not only affects the machining efficiency, but also the machined valve body is prone to affect the assembly effect due to manufacturing errors. Therefore, it is necessary to improve the existing fixture for the valve body to solve the above problems. Summary of the Invention

[0003] The purpose of the utility model is to provide a fixture for an automobile valve body, which can facilitate the machining of three surfaces of the valve body, reduce the number of clamping operations, and is beneficial to improving the machining efficiency and machining accuracy.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A fixture for an automobile valve body includes a base, a support cylinder and a support block are arranged on the base, a first pressing mechanism is arranged on a side of the support cylinder away from the support block, and the first pressing mechanism can press a valve body 00 to be machined on a support surface of the support cylinder;

[0006] A positioning column, two positioning pins and three positioning protrusions are arranged on the top surface of the support block, and the centers of the positioning column and the two positioning pins are arranged in a triangle; the three positioning protrusions are respectively arranged at three side edges of the top surface of the support block;

[0007] Second pressing mechanisms are arranged on a side of the support block away from the support cylinder and on two opposite sides of the support block, and the three second pressing mechanisms can press the valve body 00 to be machined on the corresponding positioning protrusions.

[0008] Further, an air hole is opened on the top surface of the positioning protrusion, and one end of the air hole penetrates through the side surface of the support block.

[0009] Further, a counterbore is opened on the top surface of the positioning column, and a locking bolt for screwing with the support block is arranged in the counterbore.

[0010] Further, a groove is opened on the side surface of the positioning pin, a pin hole communicated with the groove is opened on the side surface of the support block, and a limit pin is arranged in the pin hole, and one end of the limit pin extends into the groove.

[0011] Further, both the first pressing mechanism and the second pressing mechanism include a lever oil cylinder and a pressing head disposed at the pressing end of the lever oil cylinder;

[0012] A main oil passage is formed on the base, and the oil passages of the respective lever oil cylinders are hermetically communicated with the corresponding main oil passage respectively.

[0013] Further, the positioning protrusion and the support block are integrally formed.

[0014] Further, a set of lifting rings are connected to the base.

[0015] The beneficial effects of the present utility model are as follows: A fixture for an automobile valve body proposed by the present utility model places the valve body to be machined on the three positioning protrusions on the top surfaces of the support cylinder and the support block, and is positioned by the positioning column and two positioning pins; the first pressing mechanism and the second pressing mechanism jointly press the valve body to be machined, thereby completing the clamping of the valve body to be machined. Using this fixture to fix the valve body to be machined facilitates the machining of the top surface and two end surfaces of the valve body, reduces the number of clamping times, and is conducive to improving the machining efficiency and machining accuracy. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of a fixture for an automobile emission system valve body provided by the present utility model.

[0017] Figure 2 is Figure 1 the schematic structural diagram of the support block in

[0018] Figure 3 is Figure 1 the schematic structural diagram of the first pressing mechanism in Detailed Embodiments

[0019] The technical solution of the present utility model will be further described below with reference to the drawings and through specific embodiments.

[0020] As Figures 1 to 3 shown, a fixture for an automobile valve body includes a base 1, a support cylinder 2 and a support block 3 are disposed on the base 1, a first pressing mechanism 4 is disposed on the side of the support cylinder 2 away from the support block 3, and the first pressing mechanism 4 can press the valve body 100 to be machined on the support surface of the support cylinder 2; a positioning column 31, two positioning pins 32 and three positioning protrusions 33 are disposed on the top surface of the support block 3, and the centers of the positioning column 31 and the two positioning pins 32 are arranged in a triangle; the three positioning protrusions 33 are respectively disposed at the three side edges of the top surface of the support block 3; second pressing mechanisms 5 are disposed on the side of the support block 3 away from the support cylinder 2 and on the two opposite sides of the support block 3, and the three second pressing mechanisms 5 can press the valve body 100 to be machined on the corresponding positioning protrusions 33.

[0021] Specifically, in the fixture, the support cylinder 2 and the support block 3 are arranged side by side and spaced apart. Preferably, the three positioning protrusions 33 are integrally formed with the support block 3.

[0022] The top surface of the positioning protrusion 33 is provided with an air hole 331 , one end of which passes through the side surface of the support block 3 to prevent the valve body 100 from being fixed on the top surface of the positioning protrusion 33 by vacuum adsorption and making it inconvenient to remove the valve body 100 .

[0023] In the fixture, a counterbore 311 is provided on the top surface of the positioning column 31, and a locking bolt for threading with the support block 3 is arranged in the counterbore 311. A groove is provided on the side of the positioning pin 32, and a pin hole 34 connected to the groove is provided on the side of the support block 3. A limit pin is arranged in the pin hole 34, and one end of the limit pin extends into the groove.

[0024] In the fixture, the first pressing mechanism 4 and the second pressing mechanism 5 both include a lever oil cylinder 41 and a pressure head 42 disposed at the pressing end of the lever oil cylinder 41; a main oil passage is provided on the base 1, and the main oil passage includes a main oil inlet passage and a main oil outlet passage, and the oil inlet passages of each lever oil cylinder 41 are sealed and connected to the main oil inlet passage, and the oil outlet passages of each lever oil cylinder 41 are sealed and connected to the main oil outlet passage. In this way, the first pressing mechanism 4 and the second pressing mechanism 5 can be ensured to perform pressing or releasing actions synchronously.

[0025] In the fixture, a group of lifting rings 11 are connected to the base 1 to facilitate lifting and carrying the fixture.

[0026] The utility model is a fixture for automobile valve body. When in use, the valve body 100 to be processed is placed on the three positioning protrusions 33 on the top surfaces of the support cylinder 2 and the support block 3, and is positioned by the positioning column 31 and the two positioning pins 32; the first pressing mechanism 4 and the second pressing mechanism 5 jointly press the valve body 100 to be processed, thereby completing the clamping of the valve body 100 to be processed. The fixture is used to fix the valve body 100 to be processed, which can facilitate the processing of the top surface and two end surfaces of the valve body 100, reduce the number of clamping times, and is conducive to improving processing efficiency and processing accuracy.

[0027] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A fixture for an automotive valve body, characterized in that It includes a base (1), on which a support cylinder (2) and a support block (3) are provided. On one side of the support cylinder (2) away from the support block (3), a first pressing mechanism (4) is provided, and the first pressing mechanism (4) can press the valve body to be processed (100) on the support surface of the support cylinder (2). On the top surface of the support block (3), a positioning post (31), two positioning pins (32) and three positioning protrusions (33) are provided. The centers of the positioning post (31) and the two positioning pins (32) are arranged in a triangle; the three positioning protrusions (33) are respectively arranged at the three-side edges of the top surface of the support block (3). On one side of the support block (3) away from the support cylinder (2) and on two opposite sides of the support block (3), second pressing mechanisms (5) are provided, and the three second pressing mechanisms (5) can press the valve body to be processed (100) on the corresponding positioning protrusions (33).

2. The fixture for an automotive valve body according to claim 1, characterized in that, On the top surface of the positioning protrusion (33), an air hole (331) is opened, and one end of the air hole (331) penetrates and is arranged on the side surface of the support block (3).

3. The fixture for an automotive valve body according to claim 1, characterized in that, On the top surface of the positioning post (31), a counterbore (311) is opened, and a locking bolt for screwing with the support block (3) is arranged in the counterbore (311).

4. The fixture for an automotive valve body according to claim 1, wherein On the side surface of the positioning pin (32), a groove is opened, and on the side surface of the support block (3), a pin hole (34) communicated with the groove is opened. A limit pin is arranged in the pin hole (34), and one end of the limit pin extends into the groove.

5. The fixture for an automotive valve body according to claim 1, characterized in that, Both the first pressing mechanism (4) and the second pressing mechanism (5) include a lever oil cylinder (41) and a pressing head (42) arranged at the pressing end of the lever oil cylinder (41). On the base (1), a main oil passage is opened, and the oil passages of the respective lever oil cylinders (41) are respectively and hermetically communicated with the corresponding main oil passage.

6. The tooling fixture for an automotive valve body according to claim 1, characterized in that, The positioning protrusion (33) and the support block (3) are integrally formed.

7. The fixture for an automotive valve body according to claim 1, wherein, A set of lifting rings (11) are connected to the base (1).

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