Full-stroke type square hole chuck

Abstract

The utility model provides an all-stroke type square hole chuck which comprises a fixing assembly, a clamping assembly and a guiding assembly, and the interior of the fixing assembly is rotationally connected with the rear end of the clamping assembly. A set of first clamping jaws moving synchronously and a set of second clamping jaws moving synchronously are adopted, the workpiece clamping efficiency and precision can be greatly improved, the whole device can clamp workpieces of different types through the arrangement of a guide assembly, the clamping range of the device is greatly widened, the interior of the whole device is in a hollow state, and the clamping efficiency is greatly improved. Compared with the prior art, a long workpiece can be clamped and fixed, the stroke adding length of the workpiece is further increased, the four guide pieces distributed in a rectangular structure are arranged at the rear end of the guide assembly, and the workpiece can be effectively guided and limited through the roller frames on the guide pieces.

Description

Technical Field

[0001] The utility model belongs to the technical field of chucks, and particularly relates to a full-stroke square-hole chuck. Background Technique

[0002] Existing chucks have problems in the clamping range, such as limited clamping range and restricted shapes of applicable workpieces. These problems are related to the design structure of the chucks. First of all, the clamping range of traditional chucks is usually limited by their maximum clamping diameter and minimum clamping diameter. This significantly affects the applicability of the chucks when processing workpieces of different sizes or shapes. The limitation of the clamping range often leads to frequent replacement of chucks during the production process to adapt to different workpieces, which not only increases the complexity of manual operation but also affects production efficiency.

[0003] To solve this problem, common countermeasures include using extended fixtures, using multi-functional chucks, or improving the chuck design to increase its applicable range. However, the disadvantages of these methods are also very obvious. Although extended fixtures can improve applicability, they often require additional adjustments and settings, increasing the operation difficulty and time cost. Although multi-functional chucks can adapt to more workpieces, their structures are usually more complex, increasing the difficulty of maintenance and repair. Therefore, we hope to design a chuck with a new structure to solve this problem. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a full-stroke square-hole chuck to solve the problems put forward in the above background technique.

[0005] The utility model is realized through the following technical solutions: A full-stroke square-hole chuck includes: a fixed component, a clamping component, and a guiding component. The inside of the fixed component is rotationally connected to the rear end of the clamping component. The rear end of the clamping component is fixedly connected to the front end of the guiding component. The guiding component is rotationally installed on the rear side of the fixed component through the clamping component;

[0006] The fixed component includes a housing, a connecting seat, and a servo motor. A connecting seat is fixedly installed at the rear side of the upper end of the housing, and a servo motor is installed at the rear side of the connecting seat;

[0007] The clamping component includes a cylinder barrel, a mounting disc, an outer driving member, an inner driving member, and a connecting sleeve. The cylinder barrel is rotatably installed inside the housing through bearings. A mounting disc is fixedly installed at the front edge of the cylinder barrel. An outer driving member is movably installed on the outer side of the front end of the cylinder barrel. The front end of the outer driving member is movably connected to the rear end of the second jaw;

[0008] An inner driving member is movably installed inside the front end of the cylinder barrel. A connecting sleeve is fixedly installed at the rear end of the cylinder barrel. The inner wall of the connecting sleeve is fixedly connected to the rear part of the outer wall of the square pipe;

[0009] The guiding assembly includes a second guiding disc, guiding members, and a fixing cylinder. The front end of the fixing cylinder is fixedly connected to the rear end of the connecting sleeve. An outer casing is fixedly mounted on the outer wall of the fixing cylinder. The second guiding disc is fixedly mounted at the rear end of the fixing cylinder. One guiding member is movably mounted on each of the left, right, upper, and lower sides at the rear end of the second guiding disc.

[0010] As a preferred embodiment, a large gear is fixedly mounted on the outer wall of the connecting sleeve. A small gear is rotatably mounted inside the connecting seat. The rear side of the small gear is key-connected to the output shaft of the servo motor. The small gear is meshed and drivingly connected to the large gear. The large gear and the small gear cooperate to adjust the rotation angle of the clamping assembly.

[0011] As a preferred embodiment, the outer driving member includes an upper piston sleeve and an upper piston of the cylinder. The upper piston of the cylinder is movably mounted on the front side inside the cylinder barrel. The front end of the upper piston of the cylinder is fixedly connected to the rear end of the upper piston sleeve.

[0012] As a preferred embodiment, the inner driving member includes a lower piston of the cylinder and a lower piston sleeve. The lower piston of the cylinder is movably mounted on the rear side inside the cylinder barrel. The front end of the lower piston of the cylinder is fixedly connected to the rear end of the lower piston sleeve;

[0013] The outer wall of the front end of the lower piston of the cylinder is slidably connected to the inner wall of the upper piston of the cylinder. The outer wall of the lower piston sleeve is slidably connected to the inner wall of the upper piston sleeve. The inner driving member and the outer driving member cooperate to synchronously adjust the opening and closing of two axially symmetrically distributed first jaws and two axially symmetrically distributed second jaws.

[0014] As a preferred embodiment, the structure of the first jaw is the same as that of the second jaw. The second jaw includes a second chuck, a second slider, and a second swing rod. The second chuck is fixedly mounted at the front end of the second slider;

[0015] The rear end of the second slider is hinged to the front end of the second swing rod. The rear side of the second swing rod is hinged to the upper and lower sides of the mounting disc through a second rotating rod and a second fixing block. The rear end of the second swing rod is movably clamped to the upper and lower sides of the outer wall of the front end of the upper piston sleeve.

[0016] As a preferred embodiment, the first jaw includes a first chuck, a first slider, and a first swing rod. The first chuck is fixedly mounted at the front side of the first slider. The rear end of the first slider is hinged to the front end of the first swing rod. The rear side of the first swing rod is hinged to the left and right sides of the mounting disc through a first rotating rod and a first fixing block. The rear end of the first swing rod is movably clamped to the left and right sides of the outer wall of the front end of the lower piston sleeve.

[0017] As a preferred embodiment, a first square hole is provided on the front side of the fixed cylinder. The cross-section of the first square hole matches the cross-section size and structure of the square pipe. A second square hole is formed through the middle of the second guiding disc forward. The structure and size of the first square hole match the structure and size of the second square hole.

[0018] The guiding member includes a sliding seat and a roller frame. The sliding seat is fixed on the rear surface of the second guiding disc. A roller frame is fixed to the rear end of each sliding seat through a mounting block.

[0019] A roller rod is rotatably installed on each roller frame close to the second square hole. The length of the roller rod is the same as the width of the second square hole.

[0020] After adopting the above technical solution, the beneficial effect of the present utility model is that by setting the clamping assembly and adopting a group of clamping jaws one moving synchronously and a group of clamping jaws two moving synchronously, the clamping efficiency and accuracy of the workpiece can be greatly improved.

[0021] Due to the setting of the guiding assembly, a square pipe is arranged in the middle of the clamping assembly, and a first square hole and a second square hole are arranged inside the guiding assembly. This enables the entire device to clamp different types of workpieces, greatly expanding the clamping range of the equipment. Moreover, the inside of the entire device is in a hollow state, which can clamp and fix longer workpieces, further expanding the length of the available travel of the workpiece. Four guiding members distributed in a rectangular structure are arranged at the rear end of the guiding assembly. The roller frames thereon can effectively guide and limit the workpiece, and also reduce the friction of the workpiece movement, which helps to improve the operation convenience. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of a full-travel square hole chuck of the present utility model.

[0024] Figure 2 It is a schematic diagram of the guiding assembly structure of a full-travel square hole chuck of the present utility model.

[0025] Figure 3 It is a schematic diagram of the structure of the first clamping jaw and the second clamping jaw of a full-travel square hole chuck of the present utility model.

[0026] Figure 4This is a schematic diagram of the sectional structure of a full - stroke square - hole chuck of the present utility model.

[0027] In the figure, 100 - fixing component, 110 - outer shell, 120 - connecting seat, 130 - servo motor;

[0028] 200 - clamping component, 210 - cylinder barrel, 220 - mounting plate, 230 - outer driving member, 231 - upper piston sleeve, 232 - cylinder upper piston, 240 - jaw one, 250 - jaw two, 251 - chuck two, 252 - slider two, 253 - swing rod two, 260 - inner driving member, 261 - cylinder lower piston, 262 - lower piston sleeve, 270 - connecting sleeve, 280 - square tube, 290 - guide disk one;

[0029] 300 - guiding component, 310 - guide disk two, 320 - guiding member, 321 - sliding seat, 322 - roller bracket, 330 - outer casing, 340 - fixed cylinder. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0031] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a full - stroke square - hole chuck, including: a fixing component 100, a clamping component 200, and a guiding component 300. The inside of the fixing component 100 is rotatably connected to the rear end of the clamping component 200. The rear end of the clamping component 200 is fixedly connected to the front end of the guiding component 300. The guiding component 300 is rotatably installed on the rear side of the fixing component 100 through the clamping component 200;

[0032] The fixing component 100 includes an outer shell 110, a connecting seat 120, and a servo motor 130. A connecting seat 120 is fixedly installed at the rear side of the upper end of the outer shell 110, and a servo motor 130 is installed at the rear side of the connecting seat 120;

[0033] The clamping component 200 includes a cylinder barrel 210, a mounting plate 220, an outer driving member 230, an inner driving member 260, and a connecting sleeve 270. The cylinder barrel 210 is rotatably installed inside the outer shell 110 through bearings. The front - end edge of the cylinder barrel 210 is fixedly connected to a mounting plate 220. An outer driving member 230 is movably installed on the outer side of the front end of the cylinder barrel 210, and the front end of the outer driving member 230 is movably connected to the rear end of the jaw two 250;

[0034] An inner drive member 260 is movably installed inside the front end of the cylinder barrel 210, a connecting sleeve 270 is fixed to the rear end of the cylinder barrel 210, and the inner wall of the connecting sleeve 270 is fixedly connected to the rear side portion of the outer wall of the square tube 280;

[0035] The guiding assembly 300 includes a second guiding disc 310, guiding members 320 and a fixing cylinder 340. The front end of the fixing cylinder 340 is fixedly connected to the rear end of the connecting sleeve 270. An outer casing 330 is fixed to the outer wall of the fixing cylinder 340. The second guiding disc 310 is fixed to the rear end of the fixing cylinder 340. One guiding member 320 is movably installed on each of the left, right, upper and lower sides of the rear end of the second guiding disc 310.

[0036] Please refer to Figures 1 to 4 , a large gear is fixed to the outer wall of the connecting sleeve 270, a small gear is rotatably installed inside the connecting seat 120, the rear side of the small gear is key-connected to the output shaft of the servo motor 130, the small gear is meshed and drivingly connected to the large gear, and the large gear cooperates with the small gear to adjust the rotation angle of the clamping assembly 200.

[0037] The outer drive member 230 includes an upper piston sleeve 231 and an upper piston 232 of the cylinder. The upper piston 232 of the cylinder is movably installed inside the front side of the cylinder barrel 210, and the front end of the upper piston 232 of the cylinder is fixedly connected to the rear end of the upper piston sleeve 231.

[0038] The inner drive member 260 includes a lower piston 261 of the cylinder and a lower piston sleeve 262. The lower piston 261 of the cylinder is movably installed inside the rear side of the cylinder barrel 210, and the front end of the lower piston 261 of the cylinder is fixedly connected to the rear end of the lower piston sleeve 262;

[0039] The outer wall of the front end of the lower piston 261 of the cylinder is slidably connected to the inner wall of the upper piston 232 of the cylinder, and the outer wall of the lower piston sleeve 262 is slidably connected to the inner wall of the upper piston sleeve 231. The inner drive member 260 and the outer drive member 230 cooperate to synchronously adjust the opening and closing of two axially symmetrically distributed jaw one 240 and two axially symmetrically distributed jaw two 250.

[0040] The structure of the jaw one 240 is the same as that of the jaw two 250. The jaw two 250 includes a chuck two 251, a slider two 252 and a swing rod two 253. The chuck two 251 is fixed to the front end of the slider two 252;

[0041] The rear end of the slider two 252 is hinged to the front end of the swing rod two 253. The rear side of the swing rod two 253 is hinged to the upper and lower sides of the mounting disc 220 through a second rotating rod and a second fixing block. The rear end of the swing rod two 253 is movably clamped to the upper and lower sides of the front outer wall of the upper piston sleeve 231.

[0042] The first jaw 240 includes a first chuck, a first slider, and a first swing rod. The first chuck is fixed to the front side of the first slider. The rear end of the first slider is hinged to the front end of the first swing rod. The rear side of the first swing rod is hinged to the left side and the right side of the mounting plate 220 through a first rotating rod and a first fixing block. The rear end of the first swing rod is movably clamped to the left side and the right side of the front outer wall of the lower piston sleeve 262.

[0043] As the first embodiment of the present utility model, in actual use, when it is necessary to open the first jaw 240 and the second jaw 250, the cylinder barrel 210 is started to drive the inner driving member 260 and the outer driving member 230 to move. The cylinder lower piston 261 and the cylinder upper piston 232 located inside the rear side and the front side of the cylinder barrel 210 are synchronously pushed forward, thereby driving the upper piston sleeve 231 and the lower piston sleeve 262 to move forward synchronously to drive the first jaw 240 and the second jaw 250. Since the rear end of the second swing rod 253 is movably clamped to the upper side and the lower side of the front outer wall of the upper piston sleeve 231, and the rear end of the first swing rod is movably clamped to the left side and the right side of the front outer wall of the lower piston sleeve 262, the two first swing rods and the two second swing rods 253 rotate counterclockwise synchronously, thereby driving the first slider and the second slider 252 to move radially outward at the front end of the first guiding disc 290. Thus, the two first jaws 240 and the two second jaws 250 are opened. Subsequently, the workpiece to be clamped can be inserted from the guiding assembly 300 and extended into the clamping assembly 200. Then, the cylinder barrel 210 is started to perform a contraction action again. Driven by the inner driving member 260 and the outer driving member 230, the two first jaws 240 and the two second jaws 250 gradually approach the workpiece and clamp the workpiece. By adopting a group of first jaws 240 with synchronous movement and a group of second jaws 250 with synchronous movement, the clamping efficiency and accuracy of the workpiece can be greatly improved.

[0044] Please refer to Figures 2 to 3 , a first square hole is provided on the front side of the fixed cylinder 340. The cross-section of the first square hole matches the cross-section size and structure of the square tube 280. A second square hole is formed by penetrating forward through the middle of the second guiding disc 310. The structure and size of the first square hole match the structure and size of the second square hole.

[0045] The guiding member 320 includes a sliding seat 321 and a roller frame 322. The sliding seat 321 is fixed to the rear surface of the second guiding disc 310. A roller frame 322 is fixed to the rear end of each sliding seat 321 through a mounting block.

[0046] A roller rod is rotatably installed on each roller frame 322 close to the second square hole side. The length of the roller rod is the same as the width of the second square hole.

[0047] As the second embodiment of the present utility model, based on the above-mentioned first embodiment, due to the arrangement of the guiding component 300, a square tube 280 is provided in the middle of the clamping component 200, and a first square hole and a second square hole are provided inside the guiding component 300. In actual use, workpieces such as different types of rods, pipes, and profiles can be conveniently clamped and fixed, so that the equipment is no longer limited to clamping and fixing a single type of workpiece. This enables the entire device to clamp different types of workpieces, greatly expanding the clamping range of the equipment. Moreover, the inside of the entire device is in a hollow state, capable of clamping and fixing longer workpieces, further expanding the length of the available working stroke of the workpiece. Four guiding members 320 distributed in a rectangular structure are provided at the rear end of the guiding component 300. Through the roller brackets 322 thereon, the workpiece can be effectively guided and limited, and the friction of the workpiece movement can also be reduced, which helps to improve the convenience of operation.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A full-stroke square hole chuck, comprising: A fixing assembly (100), a clamping assembly (200) and a guiding assembly (300), characterized in that the interior of the fixing assembly (100) is rotatably connected to the rear end of the clamping assembly (200), the rear end of the clamping assembly (200) is fixedly connected to the front end of the guiding assembly (300), and the guiding assembly (300) is rotatably mounted on the rear side of the fixing assembly (100) through the clamping assembly (200); The fixing assembly (100) comprises a housing (110), a connecting seat (120) and a servo motor (130); the connecting seat (120) is fixed to the rear side of the upper end of the housing (110), and the servo motor (130) is installed on the rear side of the connecting seat (120); The clamping assembly (200) comprises a cylinder barrel (210), a mounting plate (220), an external driving member (230), an internal driving member (260) and a connecting sleeve (270); the cylinder barrel (210) is rollingly mounted inside the housing (110) via a bearing; the mounting plate (220) is fixed to the front end edge of the cylinder barrel (210); the external driving member (230) is movably mounted on the outer side of the front end of the cylinder barrel (210); the front end of the external driving member (230) is movably connected to the rear end of the second clamping jaw (250); An inner driving member (260) is movably mounted on the inner side of the front end of the cylinder barrel (210), a connecting sleeve (270) is fixed to the rear end of the cylinder barrel (210), and the inner wall of the connecting sleeve (270) is fixedly connected to the rear side of the outer wall of the square tube (280); The guide assembly (300) comprises a guide plate 2 (310), a guide member (320) and a fixed cylinder (340); the front end of the fixed cylinder (340) is fixedly connected to the rear end of the connecting sleeve (270); an outer sleeve (330) is fixed to the outer wall of the fixed cylinder (340); the rear end of the fixed cylinder (340) is fixed to the guide plate 2 (310); and a guide member (320) is movably mounted on the left side, right side, upper side and lower side of the rear end of the guide plate 2 (310).

2. A full-stroke square hole chuck as claimed in claim 1, characterized in that: A large gear is fixed to the outer wall of the connecting sleeve (270), a small gear is rotatably mounted inside the connecting seat (120), the rear side of the small gear is key-connected to the output shaft of the servo motor (130), and the small gear is meshed and transmission-connected with the large gear.

3. A full-stroke square hole chuck according to claim 1, characterized in that: The external driving member (230) comprises an upper piston sleeve (231) and a cylinder upper piston (232), wherein the cylinder upper piston (232) is movably mounted on the front side of the cylinder barrel (210), and the front end of the cylinder upper piston (232) is fixedly connected to the rear end of the upper piston sleeve (231).

4. A full-stroke square hole chuck as claimed in claim 3, characterized in that: The inner driving member (260) comprises a cylinder lower piston (261) and a lower piston sleeve (262), wherein the cylinder lower piston (261) is movably mounted on the rear side of the cylinder barrel (210), and the front end of the cylinder lower piston (261) is fixedly connected to the rear end of the lower piston sleeve (262); The front end outer wall of the cylinder lower piston (261) is slidably connected to the inner wall of the cylinder upper piston (232), and the outer wall of the lower piston sleeve (262) is slidably connected to the inner wall of the upper piston sleeve (231).

5. A full-stroke square hole chuck as claimed in claim 4, characterized in that: The structure of the second clamping jaw (250) is the same as that of the first clamping jaw (240). The second clamping jaw (250) comprises a second clamping head (251), a second sliding block (252) and a second swing rod (253). The second clamping head (251) is fixed to the front end of the second sliding block (252). The rear end of the second slide block (252) is hinged to the front end of the second swing rod (253); the rear side of the second swing rod (253) is hinged to the upper and lower sides of the mounting plate (220) through the second rotating rod and the second fixing block; the rear end of the second swing rod (253) is movably clamped to the upper and lower sides of the front end outer wall of the upper piston sleeve (231).

6. A full-stroke square hole chuck as claimed in claim 5, characterized in that: The clamping jaw 1 (240) comprises a clamping head 1, a sliding block 1 and a rocker arm 1, wherein the clamping head 1 is fixed to the front side of the sliding block 1, the rear end of the sliding block 1 is hinged to the front end of the rocker arm 1, the rear side of the rocker arm 1 is hinged to the left and right sides of the mounting plate (220) through a rotating rod 1 and a fixing block 1, and the rear end of the rocker arm 1 is movably clamped to the left and right sides of the front end outer wall of the lower piston sleeve (262).

7. A full-stroke square hole chuck according to claim 6, characterized in that: The front side of the fixed cylinder (340) is provided with a square hole 1, the cross section of the square hole 1 matches the cross section size and structure of the square tube (280), the middle of the guide plate 2 (310) penetrates forward to form a square hole 2, the structure and size of the square hole 1 matches the structure and size of the square hole 2; The guide member (320) comprises a slide seat (321) and a roller frame (322), wherein the slide seat (321) is fixed on the rear surface of the second guide plate (310), and a roller frame (322) is fixed to the rear end of each slide seat (321) via a mounting block; A roller rod is rotatably mounted on one side of each roller frame (322) close to the second square hole, and the length of the roller rod is the same as the width of the second square hole.

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