Vacuum booster upper cover machining and positioning tool

Abstract

The utility model relates to the field of vacuum boosters, and provides a vacuum booster upper cover machining and positioning tool which comprises a chuck, three clamping jaws are installed at the outer end of the chuck in a sliding mode, a first electric telescopic rod is installed in the center of the chuck, a supporting seat is installed at the outer end of the first electric telescopic rod, a backup plate is fixedly installed at the outer end of the supporting seat, and the backup plate is fixedly installed at the outer end of the backup plate. A first electric telescopic rod is fixedly installed on the inner side of the supporting seat, a second electric telescopic rod is fixedly installed on the inner side of the supporting seat, an expansion sleeve is installed at the outer end of the second electric telescopic rod through a pull rod, the first electric telescopic rod stretches out and draws back so that the backup plate at the inner end and the expansion sleeve can move to a positioning part, the second electric telescopic rod moves, and the expansion sleeve is tensioned, so that an upper cover of the vacuum booster is initially positioned; and then the upper cover of the vacuum booster is clamped by the clamping jaw, and the expansion sleeve is loosened and withdrawn, so that the upper cover of the vacuum booster can be machined, the clamping precision is greatly improved, and the positioning and machining requirements of the upper cover are met.

Description

Technical Field

[0001] The utility model belongs to the field of vacuum boosters and relates to a vacuum booster upper cover processing and positioning tool. Background Art

[0002] When processing the upper cover of the vacuum booster, due to its complex structure and many important dimensions, multiple positions need to be positioned during clamping and positioning processing.

[0003] Multi-point positioning is used for positioning the upper cover of the vacuum booster. However, multi-point positioning may lead to over-positioning, so that in the process of clamping the upper cover of the vacuum booster, some parts may not be clamped tightly, and in the process of movement of the upper cover of the vacuum booster, loose deviation may occur, and even the upper cover may not be clamped stably. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum booster upper cover processing and positioning tooling, which solves the problem that multi-point positioning is used in the positioning of the vacuum booster upper cover, but multi-point positioning will produce over-positioning, so that in the process of clamping the vacuum booster upper cover, some parts will not be clamped tightly, and in the process of movement of the vacuum booster upper cover, loose deviation will occur, and even the clamping stability cannot be achieved.

[0005] The technical solution of the utility model is achieved as follows: it includes a chuck, three claws are slidably installed on the outer end of the chuck, an electric telescopic rod 1 is installed at the center position of the chuck, a support seat is installed on the outer end of the electric telescopic rod 1, a backing plate is fixedly installed on the outer end of the support seat, an electric telescopic rod 2 is fixedly installed on the inner side of the support seat, an expansion sleeve is installed on the outer end of the electric telescopic rod 2 through a pull rod, the support seat is fixedly installed on the outer end of the electric telescopic rod 1 by bolts, the backing plate is fixedly installed on the outer end of the support seat by welding, a hole is provided in the middle of the backing plate, and the inner end of the pull rod is connected to the outer end of the electric telescopic rod 2 by threads.

[0006] As a preferred solution of the utility model, a through hole is provided in the middle of the chuck, three fixing holes are provided in the middle of the circumference of the chuck, the fixing holes are countersunk holes, and the corners of the outer sides of the chuck and the through holes are chamfered.

[0007] As a preferred solution of the utility model, three groups of slideways are arranged at the outer end of the chuck's circumference, a slider is slidably installed inside the slideway, and the slider is connected to a hydraulic component to achieve movement, and is used for the movement of the claws.

[0008] As a preferred solution of the utility model, a claw is fixedly installed on the outer end of the slider, and a mounting hole is provided on the end face of the claw. A bolt is installed in the mounting hole to fix the claw to the outer end of the slider.

[0009] As a preferred solution of the utility model, the clamping claw includes a connecting block, a clamping block is fixedly installed on the outer side of the connecting block, and the clamping block and the connecting block are an integrated structure formed by casting.

[0010] As a preferred solution of the utility model, a rest surface and an arc surface are arranged on the outer side of the connection block, and a pressing surface is arranged on the inner side of the clamping block. The rest surface, the arc surface and the pressing surface are processed by a turning process.

[0011] As a preferred solution of the utility model, an external fixing block and an internal fixing block are arranged on the outer side of the circumference of the electric telescopic rod. The external fixing block and the internal fixing block are respectively connected by bolts and fixedly installed on the outer side of the circumference of the electric telescopic rod. The outer ends of the external fixing block and the internal fixing block are respectively provided with connecting holes.

[0012] As a preferred solution of the utility model, a circular hole is provided in the middle of the expansion sleeve, a deformation groove is provided on the circumference of the expansion sleeve, the deformation groove is filled with rubber, and the expansion sleeve is made of stainless steel.

[0013] The vacuum booster upper cover processing positioning tooling of the utility model has beneficial effects: the electric telescopic rod 1 provided in the utility model is extended and retracted, so that the inner end support plate and the expansion sleeve are moved to the positioning position, the electric telescopic rod 2 moves, and the expansion sleeve is tightened to initially position the vacuum booster upper cover, and then the vacuum booster upper cover is clamped with a clamping claw, and the expansion sleeve is loosened and withdrawn, so that the vacuum booster upper cover can be processed, which greatly improves the clamping accuracy and meets the requirements of its positioning processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall structural diagram of an embodiment of the utility model;

[0015] Figure 2 A chuck structure diagram of an embodiment of the utility model;

[0016] Figure 3 This is a structural diagram of the claws of an embodiment of the utility model;

[0017] Figure 4 This is a positioning structure diagram of an embodiment of the utility model;

[0018] Figure 5 This is a structural diagram of an expansion sleeve according to an embodiment of the utility model;

[0019] In the figure: 1. chuck; 2. electric telescopic rod 1; 3. external fixing block; 4. internal fixing block; 5. claw; 501. connecting block; 502. clamping block; 503. leaning surface; 504. arc surface; 505. pressing surface; 6. slider; 7. through hole; 8. fixing hole; 9. slideway; 10. deformation groove; 11. support seat; 12. electric telescopic rod 2; 13. leaning plate; 14. expansion sleeve; 15. pull rod; 16. round hole. DETAILED DESCRIPTION

[0020] like Figures 1 to 5 As shown, the utility model discloses a vacuum booster upper cover processing and positioning tooling, and the technical scheme adopted is that it includes a chuck 1, three claws 5 are slidably installed on the outer end of the chuck 1, an electric telescopic rod 2 is installed at the center position of the chuck 1, and a support seat 11 is installed on the outer end of the electric telescopic rod 2, a backing plate 13 is fixedly installed on the outer end of the support seat 11, and an electric telescopic rod 2 12 is fixedly installed on the inner side of the support seat 11, and an expansion sleeve 14 is installed on the outer end of the electric telescopic rod 2 12 through a pull rod 15. The electric telescopic rod 2 provided in the utility model is telescoped, so that the backing plate 13 and the expansion sleeve 14 at the inner end are moved to the positioning position, the electric telescopic rod 2 12 moves, and the expansion sleeve 14 is tightened to initially position the vacuum booster upper cover, and then the claws 5 are used to clamp the vacuum booster upper cover, and the expansion sleeve 14 is relaxed and withdrawn, so that the vacuum booster upper cover can be processed, which greatly improves the clamping accuracy and meets the requirements of its positioning processing.

[0021] A through hole 7 is provided in the middle of the chuck 1, and three fixing holes 8 are provided in the middle of the circumference of the chuck 1. The through hole 7 is used for the protruding part in the middle of the part to enter, and the fixing holes 8 are used for installing bolts to fix the chuck 1 on the machine tool.

[0022] Three groups of slideways 9 are arranged at the outer end of the circumference of the chuck 1 , and a slider 6 is slidably installed inside the slideway 9 . The slider 6 slides inside the slideway 9 to move the claw 5 .

[0023] A clamping claw 5 is fixedly mounted on the outer end of the slider 6, and a plurality of clamping strips are respectively provided on the outer end of the slider 6 and the inner end of the clamping claw 5 for clamping the two.

[0024] The clamping claw 5 includes a connecting block 501, and a clamping block 502 is fixedly installed on the outer side of the connecting block 501. The connecting block 501 is used to connect the slider 6 and realize the close contact of the upper cover of the vacuum booster. The clamping block 502 is used to clamp the circumference of the upper cover of the vacuum booster.

[0025] A support surface 503 and an arc surface 504 are arranged on the outer side of the connection block 501, and a pressing surface 505 is arranged on the inner side of the clamping block 502. The support surface 503 and the arc surface 504 are used to press against the side of the upper cover of the vacuum booster, and the pressing surface 505 is used to press the upper cover of the vacuum booster.

[0026] An outer fixing block 3 and an inner fixing block 4 are arranged on the outer side of the circumference of the electric telescopic rod 2, and bolts are installed on the outer ends of the circumference of the outer fixing block 3 and the inner fixing block 4 for fixing the electric telescopic rod 2 on the machine tool.

[0027] A circular hole 16 is provided in the middle of the expansion sleeve 14, and a deformation groove 10 is provided on the circumference of the expansion sleeve 14. The circular hole 16 is used for the passage of the pull rod 15. The deformation groove 10 is deformed to tighten the circular hole in the middle of the upper cover of the vacuum booster.

[0028] The working principle of this vacuum booster upper cover processing and positioning tooling: When the vacuum booster upper cover processing and positioning tooling is in use, first control the electric telescopic rod 2 to extend, so that the support seat 11 moves inward, and the back plate 13 and the expansion sleeve 14 move inward, align the middle of the vacuum booster upper cover with the expansion sleeve 14, and make the side of the vacuum booster upper cover close to the back surface 503 and the arc surface 504, so that the electric telescopic rod 12 is shortened, and the pull rod 10 is pulled, and the expansion sleeve 14 is tightened and deformed by the pull rod 15 and the back plate 13 to support the center hole of the vacuum booster upper cover, and then, the slider 6 is controlled to slide on the inside of the slide 9 to move the claw 5 so that the pressing surface 505 presses the vacuum booster upper cover. After the fixation is completed, the electric telescopic rod 12 is extended, the expansion sleeve 14 is relaxed, and the electric telescopic rod 2 is controlled to shorten, so that the support seat 11 moves outward, and the expansion sleeve 14 moves outward, and then the vacuum booster upper cover can be processed.

[0029] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. Vacuum booster upper cover processing and positioning tooling, characterized by: The invention comprises a chuck (1), wherein three claws (5) are slidably mounted on the outer end of the chuck (1), an electric telescopic rod (2) is mounted at the center of the chuck (1), a support seat (11) is mounted on the outer end of the electric telescopic rod (2), a backing plate (13) is fixedly mounted on the outer end of the support seat (11), an electric telescopic rod (12) is fixedly mounted on the inner side of the support seat (11), and an expansion sleeve (14) is mounted on the outer end of the electric telescopic rod (12) via a pull rod (15).

2. The vacuum booster upper cover processing and positioning tool according to claim 1, characterized in that: A through hole (7) is provided in the middle of the chuck (1), and three fixing holes (8) are provided in the middle of the circumference of the chuck (1).

3. The vacuum booster upper cover processing and positioning tool according to claim 1, characterized in that: Three groups of slideways (9) are provided at the outer end of the circumference of the chuck (1), and a slider (6) is slidably mounted inside the slideway (9).

4. The vacuum booster upper cover processing and positioning tool according to claim 3, characterized in that: A claw (5) is fixedly mounted on the outer end of the sliding block (6).

5. The vacuum booster upper cover processing and positioning tool according to claim 1, characterized in that: The clamping claw (5) comprises a connecting block (501), and a clamping block (502) is fixedly mounted on the outside of the connecting block (501).

6. The vacuum booster upper cover processing and positioning tool according to claim 5, characterized in that: The outer side of the connection block (501) is provided with a resting surface (503) and an arcuate surface (504), and the inner side of the clamping block (502) is provided with a pressing surface (505).

7. The vacuum booster upper cover processing and positioning tool according to claim 1, characterized in that: An outer fixing block (3) and an inner fixing block (4) are arranged on the outer side of the circumference of the electric telescopic rod 1 (2).

8. The vacuum booster upper cover processing and positioning tool according to claim 1, characterized in that: A circular hole (16) is provided in the middle of the expansion sleeve (14), and a deformation groove (10) is provided on the circumference of the expansion sleeve (14).

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