A new type of screw-actuated pneumatic hollow chuck structure

Abstract

The utility model discloses a novel screw rod pneumatic hollow chuck structure, comprising a base, a chuck is fixedly connected to the base, a clamping device is arranged on one side of the chuck, a large tooth plate is arranged on the other side of the chuck, a rotating gear is arranged on one side end of the base, and the rotating gear is engaged with the large tooth plate. The beneficial effects are: by adopting a pneumatic propulsion device, especially a first telescopic cylinder and a second telescopic cylinder, fast clamping and releasing of the clamping device are realized, thereby improving the clamping efficiency. This automated clamping method makes the operation more convenient and saves the time and energy of the workers; a double-layer clamping device design is adopted, in which the arrangement of the first bidirectional screw rod and the second bidirectional screw rod makes the opening and closing action of the clamping device more stable and precise.

Description

Technical Field

[0001] The utility model belongs to the technical field of chucks, and in particular relates to a novel screw rod pneumatic hollow chuck structure. Background Art

[0002] As an important clamping device, pneumatic hollow chuck is widely used in various processing scenarios in the industrial field. It can clamp workpieces of various shapes, such as cylinders, square cylinders, etc., so as to perform turning, milling, drilling, welding and other processing operations. Traditional pneumatic hollow chucks are usually composed of components such as a fixed seat, a clamping plate, and a cylinder. The cylinder controls the opening and closing of the clamping plate through a pneumatic device to clamp the workpiece. Utility Model Content

[0003] The purpose of this invention is to solve some limitations of the traditional pneumatic hollow chuck structure. It adopts direct clamping by cylinder. Too fast pushing of the cylinder may cause excessive clamping speed and damage to the product. A screw transmission mechanism is introduced to realize the opening and closing of the clamping disk through the rotation of the screw, thereby realizing the adjustable and precise control of the workpiece diameter.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: a new type of screw rod pneumatic hollow chuck structure, including a base, a chuck is fixedly connected to the base, a clamping device is arranged on one side of the chuck, a large tooth plate is arranged on the other side of the chuck, and a rotating gear is arranged on one side end of the base, and the rotating gear is engaged with the large tooth plate.

[0005] Further, the clamping device includes two first fixed seats, the two first fixed seats are in opposition, the first fixed bases are fixedly connected with a first bidirectional screw, the adjacent ends of the first screw are provided with a first sliding guide rod, the first sliding guide rod and the first bidirectional screw are penetrated with a first propulsion block, the first propulsion block is fixedly connected with a first telescopic cylinder, one side end of the first propulsion block is fixedly connected with a first clamping round rod, the upper end of the first clamping round rod is provided with a two-layer clamping device, the setting of the first bidirectional screw can make the opening and closing action of the clamping device more stable and accurate, which is beneficial to the stability and processing accuracy of the clamping workpiece, the setting of the first sliding guide rod and the adjacent end of the first bidirectional screw rod enables the propulsion block to move smoothly along the axis direction of the screw rod. This design can ensure the smooth movement of the clamping device, effectively avoid the situation of stagnation or jamming, and improve the reliability and stability of the clamping device. The first telescopic cylinder is fixedly connected to the first propulsion block, and through the telescopic movement of the cylinder, the clamping device can be quickly clamped and released, which improves the clamping efficiency and operation convenience.

[0006] Furthermore, the two-layer clamping device includes two cylinder fixing blocks, the upper ends of the cylinder fixing blocks are provided with a second telescopic cylinder, the two side ends of the second telescopic cylinder are provided with a second fixing seat, the second fixing seats are fixedly connected with a second bidirectional screw rod, the adjacent ends of the second bidirectional screw rod are provided with a second sliding guide rod, the second bidirectional screw rod and the second sliding guide rod are penetrated by a second propulsion block, and a second clamping round rod is provided at one side end of the second propulsion block. The design of the two-layer clamping device increases the stability and reliability of clamping, meets the requirements of bidirectional clamping in the horizontal and longitudinal directions, and at the same time, the clamping with the cooperation of the screw rod is more stable, and can also better adapt to the clamping requirements of workpieces of different shapes and sizes, thereby improving the versatility and applicability of the clamping device.

[0007] Furthermore, the first telescopic cylinder, the first fixing seat, the cylinder fixing block and the chuck are fixedly connected by bolts, the second telescopic cylinder and the cylinder fixing block are fixedly connected by bolts, and the second fixing seat and the first fixing seat are fixedly connected by bolts.

[0008] Furthermore, the clamping device has a double-layer structure.

[0009] Compared with the prior art, the beneficial effects of this invention are:

[0010] 1. Improve clamping efficiency and operation convenience: By adopting the pneumatic propulsion device, especially the first telescopic cylinder and the second telescopic cylinder, the clamping device can be quickly clamped and released, thereby improving the clamping efficiency. This automated clamping method makes the operation more convenient and saves workers' time and energy;

[0011] 2. Enhanced clamping stability and precision: The double-layer clamping device design is adopted, in which the setting of the first bidirectional screw rod and the second bidirectional screw rod makes the opening and closing action of the clamping device more stable and precise. At the same time, the addition of the second layer of clamping device increases the clamping stability, meets the horizontal and vertical bidirectional clamping requirements, and makes the clamping more reliable and precise;

[0012] 3. Improve versatility and applicability: The structural design takes into account the clamping requirements of workpieces of different shapes and sizes, making the clamping device more universal and applicable. The design of screw rod combined with clamping increases the stability of clamping, can better adapt to workpieces of different shapes and sizes, and improves the applicability of the entire chuck structure; BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram for this practical application;

[0014] Figure 2 The back side diagram of this utility model is shown;

[0015] Figure 3The bottom diagram of the clamping device of this utility model is shown;

[0016] Figure 4 This is a schematic diagram of the upper side of the clamping device of the present utility model;

[0017] In the figure: 1-base, 2-chuck, 3-clamping device, 4-large toothed disc, 5-rotating gear, 31-first fixed seat, 32-first bidirectional screw rod, 33-first sliding guide rod, 34-first propulsion block, 35-first telescopic cylinder, 36-first clamping round rod, 37-two-layer clamping device, 371-cylinder fixed block, 372-second telescopic cylinder, 373-second fixed seat, 374-second bidirectional screw rod, 375-second sliding guide rod, 376-second propulsion block, 377-second clamping round rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the practical embodiment to clearly and completely describe the technical solution in the practical embodiment. Obviously, the described embodiment is only a part of the embodiment of the practical embodiment, not all of the embodiments. Based on the embodiment in the practical embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical embodiment.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] Combination Figure 1-4 As shown, a novel screw-actuated pneumatic hollow chuck structure includes a base 1, a chuck 2 is fixedly connected to the base 1, a clamping device 3 is provided on one side of the chuck 2, a large tooth plate 4 is provided on the other side of the chuck 2, and a rotating gear 5 is provided on one side end of the base 1, and the rotating gear 5 is engaged with the large tooth plate 4;

[0021] Among them, the clamping device 3 includes two first fixed seats 31, and the two first fixed seats 31 are in opposition. The first fixed seats 31 are fixedly connected with a first bidirectional screw rod 32, and the adjacent ends of the first screw rod 32 are provided with a first sliding guide rod 33. The first sliding guide rod 33 and the first bidirectional screw rod 32 are penetrated by a first propulsion block 34, and the first telescopic cylinder 35 is fixedly connected to the first propulsion block 34. A first clamping round rod 36 is fixedly connected to one side end of the first propulsion block 34, and a two-layer clamping device 37 is provided on the upper end of the first clamping round rod 36. The setting of the first bidirectional screw rod can make the opening and closing action of the clamping device more stable and precise, which is beneficial to the stability and processing accuracy of the clamping workpiece. The setting of the first sliding guide rod and the adjacent end of the first bidirectional screw rod enables the propulsion block to move smoothly along the axial direction of the screw rod. This design can ensure the smooth movement of the clamping device, effectively avoid the situation of stagnation or jamming, and improve the reliability and stability of the clamping device. The first telescopic cylinder is fixedly connected to the first propulsion block. Through the telescopic movement of the cylinder, the clamping device can be quickly clamped and released, which improves the clamping efficiency and the convenience of operation. The two-layer clamping device 37 includes two cylinder fixing blocks 371, and the upper ends of the cylinder fixing blocks 371 are each provided with a second telescopic cylinder 372, and the two side ends of the second telescopic cylinder 372 are each provided with a second fixed seat 373, and the second fixed seat 373 is fixedly connected with a second bidirectional screw rod 374, and the adjacent ends of the second bidirectional screw rod 374 are each provided with a second sliding guide rod 375. The second bidirectional screw rod 374 A second pushing block 376 is provided on the second sliding guide rod 375, and a second clamping round rod 377 is provided on one side end of the second pushing block 376. The two-layer clamping device design increases the stability and reliability of clamping and meets the requirements of horizontal and vertical bidirectional clamping. At the same time, the clamping with the screw rod is more stable and can better adapt to the clamping requirements of workpieces of different shapes and sizes, thereby improving the versatility and applicability of the clamping device. The first telescopic cylinder 35, the first fixed seat 31, the cylinder fixing block 371 and the chuck 2 are fixedly connected by bolts, the second telescopic cylinder 372 and the cylinder fixing block 371 are fixedly connected by bolts, and the second fixed seat 373 and the first fixed seat 31 are fixedly connected by bolts. The clamping device 3 has a double-layer structure.

[0022] When working, the chuck 2 is fixedly connected to the base 1, and a rotating gear 5 is provided on one side end of the base 1. The rotating gear 5 is engaged with the large toothed disc 4. When the rotating gear 5 rotates, the large toothed disc 4 also rotates accordingly, thereby realizing the rotation clamping of the workpiece. The first layer of clamping device: the clamping device 3 includes two first fixed seats 31, and the first two-way screw rod 32 is fixedly connected between the first fixed seats 31. When the first telescopic cylinder 35 is extended and retracted, the first propulsion block 34 moves along the axial direction of the first two-way screw rod 32 to push the first clamping round rod 36 to clamp. The setting of the moving guide rod 33 ensures the smooth movement of the first propulsion block 34, thereby realizing the longitudinal clamping of the workpiece. The second-layer clamping device: The second-layer clamping device 37 also adopts the structure of a bidirectional screw rod and a cylinder fixing block, but its position is higher than the first-layer clamping device, which enables the second-layer clamping device to cooperate with the first-layer clamping device in the longitudinal direction and realize clamping of the workpiece in the other direction at the same time. When the second telescopic cylinder 372 is extended and retracted, the second clamping round rod 377 performs a clamping action through the movement of the second propulsion block 376, thereby meeting the clamping and fixing work of the workpiece.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel screw-actuated pneumatic hollow chuck structure, comprising a base (1), characterized in that: A chuck (2) is fixedly connected to the base (1); a clamping device (3) is provided on one side of the chuck (2); a large toothed disc (4) is provided on the other side of the chuck (2); a rotating gear (5) is provided on one end of the base (1); and the rotating gear (5) is engaged with the large toothed disc (4).

2. A novel screw-pneumatic hollow chuck structure according to claim 1, characterized in that The clamping device (3) comprises two first fixed seats (31), the two first fixed seats (31) are in opposition, a first bidirectional screw rod (32) is fixedly connected between the first fixed seats (31), adjacent ends of the first bidirectional screw rod (32) are provided with a first sliding guide rod (33), a first propulsion block (34) is provided through the first sliding guide rod (33) and the first bidirectional screw rod (32), a first telescopic cylinder (35) is fixedly connected to the first propulsion block (34), a first clamping round rod (36) is fixedly connected to one side end of the first propulsion block (34), and a two-layer clamping device (37) is provided at the upper end of the first clamping round rod (36).

3. A novel screw rod pneumatic hollow chuck structure according to claim 2, characterized in that The two-layer clamping device (37) comprises two cylinder fixing blocks (371), the upper end of each cylinder fixing block (371) is provided with a second telescopic cylinder (372), both side ends of the second telescopic cylinder (372) are provided with a second fixing seat (373), a second bidirectional screw rod (374) is fixedly connected between the second fixing seats (373), the adjacent ends of the second bidirectional screw rod (374) are provided with a second sliding guide rod (375), the second bidirectional screw rod (374) and the second sliding guide rod (375) are both penetrated by a second propulsion block (376), and a second clamping round rod (377) is provided at one side end of the second propulsion block (376).

4. A novel screw rod pneumatic hollow chuck structure according to claim 3, characterized in that The first telescopic cylinder (35), the first fixing seat (31), the cylinder fixing block (371) and the chuck (2) are fixedly connected by bolts, the second telescopic cylinder (372) and the cylinder fixing block (371) are fixedly connected by bolts, and the second fixing seat (373) and the first fixing seat (31) are fixedly connected by bolts.

5. A novel screw rod pneumatic hollow chuck structure according to claim 4, characterized in that : The clamping device (3) presents a double-layer structure.

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