Clamp for machining cylinder cover of air compressor of engine

Abstract

The utility model relates to a fixture for machining an air compressor cylinder cover of an engine, which comprises a fixture bottom plate, four high-position bosses are mounted on the left side of the upper end of the fixture bottom plate, a high-position mounting hole is formed in the middle of the upper end of each high-position boss, and high positioning columns are connected into two high-position mounting holes arranged diagonally. A through hole is formed in the position, between every two high-position bosses which are oppositely arranged front and back, of the upper end of the clamp bottom plate, a locking oil cylinder is vertically installed at the position, below each through hole, of the lower end of the clamp bottom plate, a guide frame is installed between the locking oil cylinders and the clamp bottom plate, and two inclined guide grooves are symmetrically formed in the two sides of the guide frame. The upper end of a piston rod of the locking oil cylinder is rotationally connected with a connecting plate through a first rotating shaft, the upper end of the connecting plate is rotationally connected with a buckle plate through a second rotating shaft, the upper portion of the buckle plate penetrates through the corresponding through hole and is provided with a hook part, and the first rotating shaft and the second rotating shaft slide along the inclined guide groove. The positioning device is accurate in positioning and capable of greatly improving the machining efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine air compressors, in particular to a clamp for machining a cylinder cover of an engine air compressor. Background Art

[0002] The automotive air compressor is an important component of the automobile. Its function is to generate compressed air to provide energy to the vehicle's braking system. With the development trend of people's requirements for safe, comfortable, stable and low-noise automobiles, higher standards are put forward for the working stability of the air compressor.

[0003] The cylinder head of the engine air compressor is an important component of the vehicle air compressor. Figure 5 and Figure 6 As shown, the compressor cylinder head 24 has circular connecting holes 25 at each of its four corners, and two air holes 26 are staggered on either side of the center of the compressor cylinder head 24. This requires machining the outer contour of the compressor cylinder head 24. Currently, there is no dedicated fixture for fixing the compressor cylinder head, resulting in inaccurate machining and the possibility of interference when machining the outer contour. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a fixture for processing the cylinder head of an engine air compressor, which has accurate positioning and can greatly improve the processing efficiency. In addition, when the cylinder head of the air compressor is fixed in reverse, the air hole position is used for interlocking and pressing, which can effectively avoid mutual interference when processing the outer contour.

[0005] The cam is provided with a plurality of upper and lower projections on the upper and lower surfaces of the upper and lower surfaces of the upper and lower surfaces of the lower and lower surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the lower and upper surfaces of the

[0006] As a supplement to the technical solution described in the present invention, an avoidance groove is provided in the middle of the gusset plate on the opposite side of the hook portion.

[0007] As a supplement to the technical solution described in the present invention, a supporting column is provided inside the guide frame on the side opposite to the hook portion.

[0008] As a supplement to the technical solution described in the present invention, the high positioning column and the high-position mounting hole are connected by threads.

[0009] As a supplement to the technical solution described in the present invention, two vertically arranged clamping cylinders are relatively installed on the right side of the lower end of the clamp base plate. The piston rod of each clamping cylinder vertically passes through the clamp base plate and is connected to a pressure plate. The upper end of the clamp base plate is located between the two pressure plates and is equipped with four low-position bosses arranged in a rectangular shape. A low-position mounting hole is provided in the middle of the upper end of each low-position boss, and two of the diagonally arranged low-position mounting holes are internally connected to low positioning columns.

[0010] As a supplement to the technical solution of the present invention, the low positioning column and the low mounting hole are connected by threads.

[0011] As a supplement to the technical solution described in the present invention, the middle part of the pressure plate is connected to the piston rod of the clamping cylinder, and one end of the pressure plate is used to clamp the cylinder head of the engine air compressor. The upper end of the clamp bottom plate is located below the other end of each pressure plate and is screwed with a limit bolt. The limit bolt is arranged vertically, and a locking nut is also screwed on the limit bolt.

[0012] Beneficial effects: The utility model relates to a fixture for processing the cylinder head of an engine air compressor. It has two workstations corresponding to reverse positioning of the air compressor cylinder head and forward positioning of the air compressor cylinder head. The positioning is precise, which can greatly improve the processing efficiency. Moreover, when reversely fixing the air compressor cylinder head, the air hole position is used for interlocking and tightening, which can effectively avoid mutual interference when processing the outer contour. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model after the product is installed;

[0014] Figure 2 This is a schematic diagram of the structure of the utility model without installing the product;

[0015] Figure 3 This is a structural diagram of the locking oil cylinder, guide frame and gusset plate described in the utility model;

[0016] Figure 4 This is a structural diagram of the locking oil cylinder, connecting plate and gusset plate described in the present invention;

[0017] Figure 5 It is a structural diagram of the processed product of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the processing product of the utility model at different angles.

[0019] Illustration: 1. Fixture base plate, 2. High-position boss, 3. Locking cylinder, 4. Pressing cylinder, 5. Low-position boss, 6. Limit bolt, 7. Locking nut, 8. Pressure plate, 9. Guide frame, 10. Through hole, 11. High-position mounting hole, 12. High positioning column, 13. Low-position mounting hole, 14. Low positioning column, 15. Inclined guide groove, 16. Rotating shaft one, 17. Rotating shaft two, 18. Buckle plate, 19. Hook part, 20. Avoidance groove, 21. Support column, 22. Connecting plate, 23. Long through hole, 24. Air compressor cylinder head, 25. Connecting through hole, 26. Air hole. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the contents of this invention, those skilled in the art may make various changes or modifications to the present invention, and that such equivalents also fall within the scope of the claims appended hereto.

[0021] The embodiment of the utility model relates to a fixture for processing the cylinder head of an engine air compressor, such as Figure 1-6 As shown, it includes a fixture base plate 1, and four high-position bosses 2 arranged in a rectangular shape are installed on the left side of the upper end of the fixture base plate 1. A high-position mounting hole 11 is provided in the middle of the upper end of each high-position boss 2, and two high-position mounting holes 11 arranged diagonally are internally connected with high positioning columns 12. The high positioning columns 12 and the high-position mounting holes 11 are threadedly connected. The high positioning columns 12 are designed to be easy to disassemble and assemble, which is convenient for later replacement. Moreover, when two of the high-position mounting holes 11 arranged diagonally have problems, the other two high-position mounting holes 11 arranged diagonally can be used to install the high positioning columns 12. The upper end of the fixture base plate 1 is located at each of the two front and rear relatively arranged There is a through hole 10 between the high-position bosses 2, and a locking cylinder 3 is vertically installed at the lower end of the clamp base plate 1 below each through hole 10. A guide frame 9 is installed between the locking cylinder 3 and the clamp base plate 1, and two inclined guide grooves 15 are symmetrically arranged on both sides of the guide frame 9. The upper end of the piston rod of the locking cylinder 3 is rotatably connected to the connecting plate 22 through the rotating shaft 16, and the upper end of the connecting plate 22 is rotatably connected to the buckle plate 18 through the rotating shaft 2 17. The upper part of the buckle plate 18 passes through the corresponding through hole 10 and is provided with a hook portion 19. The rotating shaft 16 and the rotating shaft 2 17 both slide along the inclined guide groove 15, and the two buckle plates 18 are arranged in opposite directions.

[0022] The locking cylinder 3, guide frame 9, pinch plate 18 and connecting plate 22 and other components constitute a locking device, and the four high-position bosses 2 and two locking devices form an installation station for reverse positioning of the air compressor cylinder head 24. Figure 1 As shown on the left side, first place the air compressor cylinder head 24 in reverse on the four high-position bosses 2, and insert the two high positioning columns 12 into the two diagonally opposite connecting through holes 25 respectively to realize the position limit of the air compressor cylinder head 24. The two buckle plates 18 pass through the two air holes 26, and the two locking cylinders 3 are started. The rotating shaft 16 and the rotating shaft 2 17 both slide along the inclined guide groove 15. The piston rod of the locking cylinder 3 is contracted to control the connecting plate 22 to move downward, so that the hook parts 19 of the two buckle plates 18 are relatively far away from each other and tilt downward to buckle the upper end of the air hole 26, so as to realize the tightening of the air compressor cylinder head 24. After that, the machining center processes the surrounding contours of the air compressor cylinder head 24.

[0023] As a preferred solution for the gusset plate 18, an avoidance groove 20 is provided in the middle of the gusset plate 18 on the opposite side of the hook portion 19. By providing the avoidance groove 20 in the middle of the gusset plate 18, interference with the through hole 10 is avoided, thereby improving the service life of the gusset plate 18.

[0024] As a preferred solution for the guide frame 9, a supporting column 21 is provided inside the guide frame 9 on the side opposite to the bent hook portion 19; when the reversely placed air compressor cylinder head 24 is processed, the connecting plate 22 is controlled to move tilted upward by extending the piston rod of the locking cylinder 3 until one side of the buckle plate 18 leans against the supporting column 21. At this time, the air compressor cylinder head 24 can be removed, and the supporting column 21 can be set to limit the position of the buckle plate 18, while preventing the buckle plate 18 from leaning against the inner wall of the guide frame 9.

[0025] As a preferred solution of the guide frame 9, the guide frame 9 has an inner cavity, which is used to accommodate the connecting plate 22, the upper part of the piston rod of the locking cylinder 3 and the lower part of the buckle plate 18. A long through hole 23 is opened at the upper end of the inner cavity, and the upper end of the buckle plate 18 passes through the long through hole 23. The buckle plate 18 slides back and forth along the inner wall of the long through hole 23.

[0026] As an explanation of the installation station for forward positioning of the air compressor cylinder head 24, two vertically arranged clamping cylinders 4 are relatively installed on the right side of the lower end of the clamp base plate 1, and the piston rod of each clamping cylinder 4 vertically passes through the clamp base plate 1 and is connected to a pressure plate 8. The upper end of the clamp base plate 1 is located between the two pressure plates 8 and is installed with four low-position bosses 5 arranged in a rectangular shape. A low-position mounting hole 13 is provided in the middle of the upper end of each low-position boss 5, of which two diagonally arranged low-position mounting holes 13 are internally connected with low positioning columns 14, and the low positioning columns 14 are threadedly connected to the low-position mounting holes 13. The low positioning columns 14 are designed to be easy to disassemble and assemble, so as to facilitate later replacement. Moreover, when problems occur with two of the diagonally arranged low-position mounting holes 13, the other two diagonally arranged low-position mounting holes 13 can be used to install the low positioning columns 14.

[0027] The above-mentioned pressing oil cylinder 4 and pressing plate 8 and other components constitute a pressing device, and the four low-position bosses 5 and two pressing devices form an installation station for positively positioning the air compressor cylinder head 24. Figure 1 As shown on the right, first place the air compressor cylinder head 24 forward onto the four low-position bosses 5, and insert the two low positioning columns 14 into the two diagonally opposite connecting through holes 25 respectively to limit the position of the air compressor cylinder head 24. Start the two clamping cylinders 4, and control the downward movement of the pressure plate 8 by contracting the piston rod of the clamping cylinder 4, so that the two pressure plates 8 press the two sides of the upper end of the air compressor cylinder head 24 respectively to achieve the clamping of the air compressor cylinder head 24. After that, the machining center processes the various hole positions on the upper end of the air compressor cylinder head 24.

[0028] As an illustration of the height limit of the pressure plate 8, the middle portion of the pressure plate 8 is connected to the piston rod of the compression cylinder 4. One end of the pressure plate 8 is used to compress the engine air compressor cylinder head. A limit bolt 6 is screwed to the upper end of the fixture base plate 1, located below the other end of each pressure plate 8. The limit bolt 6 is arranged vertically and is also screwed to a locking nut 7. The lower end of the limit bolt 6 is threadedly connected to the fixture base plate 1. The height can be adjusted by rotating the limit bolt 6. Once the desired height is reached, tightening the locking nut 7 prevents the limit bolt 6 from being rotated.

[0029] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0032] The above is a detailed introduction to a fixture for processing the cylinder head of an engine air compressor provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A fixture for machining an engine air compressor cylinder head, comprising a fixture base plate (1), characterized in that: Four rectangular high-position bosses (2) are installed on the left side of the upper end of the clamp base plate (1), and a high-position mounting hole (11) is provided in the middle of the upper end of each high-position boss (2), wherein two diagonally arranged high-position mounting holes (11) are internally connected with high positioning columns (12), and a through hole (10) is provided between each two high-position bosses (2) arranged front and back relative to each other at the upper end of the clamp base plate (1), and a locking oil cylinder (3) is vertically installed below each through hole (10) at the lower end of the clamp base plate (1), and the locking oil cylinder (3) is connected to the clamp base plate. A guide frame (9) is installed between the plates (1), and two oblique guide grooves (15) are symmetrically arranged on both sides of the guide frame (9). The upper end of the piston rod of the locking cylinder (3) is rotatably connected to a connecting plate (22) through a rotating shaft (16), and the upper end of the connecting plate (22) is rotatably connected to a buckle plate (18) through a rotating shaft (17). The upper part of the buckle plate (18) passes through the corresponding through hole (10) and is provided with a hook portion (19). The rotating shaft (16) and the rotating shaft (17) both slide along the oblique guide groove (15), and the two buckle plates (18) are arranged in opposite directions.

2. The fixture for machining the cylinder head of an engine air compressor according to claim 1, characterized in that: A relief groove (20) is provided in the middle of the buckle plate (18) on the opposite side of the hook portion (19).

3. The fixture for machining the cylinder head of an engine air compressor according to claim 1, characterized in that: A supporting column (21) is provided inside the guide frame (9) on the side opposite to the hook portion (19).

4. The fixture for machining the cylinder head of an engine air compressor according to claim 1, characterized in that: The high positioning column (12) and the high-position installation hole (11) are connected by threaded connection.

5. The fixture for machining the cylinder head of an engine air compressor according to claim 1, characterized in that: Two vertically arranged clamping cylinders (4) are relatively installed on the right side of the lower end of the clamp base plate (1), and the piston rod of each clamping cylinder (4) vertically passes through the clamp base plate (1) and is connected to a pressure plate (8). The upper end of the clamp base plate (1) is located between the two pressure plates (8) and is installed with four rectangular low-position bosses (5). A low-position mounting hole (13) is provided in the middle of the upper end of each low-position boss (5), and two diagonally arranged low-position mounting holes (13) are internally connected to low positioning columns (14).

6. The fixture for machining the cylinder head of an engine air compressor according to claim 5, characterized in that: The low positioning column (14) and the low mounting hole (13) are connected by threads.

7. The fixture for machining the cylinder head of an engine air compressor according to claim 5, characterized in that: The middle part of the pressure plate (8) is connected to the piston rod of the pressing cylinder (4), and one end of the pressure plate (8) is used to press the cylinder head of the engine air compressor. The upper end of the clamp base plate (1) is located below the other end of each pressure plate (8) and is screwed with a limit bolt (6). The limit bolt (6) is arranged vertically, and a locking nut (7) is also screwed on the limit bolt (6).

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