Adjustable heavy universal chuck

Abstract

The utility model relates to the technical field of chucks, in particular to an adjustable heavy universal chuck which comprises a chuck fixing seat, a first connecting piece and a second connecting piece are rotatably connected to the inner wall of the chuck fixing seat through bearings, a rotary connecting cylinder is connected to the inner wall of the first connecting piece, the first connecting piece is communicated with one end of the rotary connecting cylinder, and the second connecting piece is communicated with the other end of the rotary connecting cylinder. A first sliding plate is slidably connected to the inner wall of the second connecting piece. The output ends of the two sets of hydraulic telescopic cylinders extend out to drive the first sliding plate and the second sliding plate to move respectively, the first sliding plate and the second sliding plate drive the corresponding transmission rotating pieces to move respectively, and under the action of the rotating support, the transmission rotating pieces can rotate. The two sets of transmission rotating pieces drive the two corresponding first clamps and the two corresponding second clamps to slide and draw close in the sliding grooves correspondingly, the size of a clamping opening of the heavy universal chuck can be adjusted, workpieces of different sizes can be clamped, and the universality of the heavy universal chuck is greatly improved.

Description

Technical Field

[0001] The utility model relates to a universal chuck, in particular to an adjustable heavy-duty universal chuck, belonging to the technical field of chucks. Background Art

[0002] A chuck is a mechanical device used to clamp workpieces on a machine tool. The main function of the chuck is to firmly fix the workpiece on the spindle or workbench of the machine tool for various machining operations such as cutting, drilling, grinding, etc. The chuck plays a crucial role in machining and is an important tool to ensure machining accuracy and improve production efficiency.

[0003] When machining workpieces on a machine tool, a chuck is often used to clamp the workpiece. Traditional chucks usually can only clamp workpieces of specific sizes and do not have the ability to adjust. When it is necessary to clamp workpieces of different sizes, the requirements are often not met, and different chucks need to be replaced for clamping, which causes great inconvenience to the use of the chuck, is not conducive to the use of the chuck, and greatly reduces the versatility of the chuck.

[0004] Therefore, it is urgent to improve the adjustable heavy-duty universal chuck to solve the above existing problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an adjustable heavy-duty universal chuck. The output ends of two groups of hydraulic telescopic cylinders extend to drive the first sliding plate and the second sliding plate to move respectively. The first sliding plate and the second sliding plate drive the corresponding transmission rotating parts to move respectively. Under the action of the rotating bracket, the two groups of transmission rotating parts drive the corresponding two first clamps and two second clamps to slide and approach in the chute. After loosening the fixing bolts, the sliding auxiliary block and the adjusting part can adjust the distance of the four third rollers relative to the central axis of the adjusting plate, and can adjust the size of the clamping opening of the heavy-duty universal chuck to clamp workpieces of different sizes, greatly increasing the versatility of the heavy-duty universal chuck.

[0006] To achieve the above object, the main technical solutions adopted by the present utility model include: a chuck fixing seat, on the inner wall of the chuck fixing seat, a first connecting member and a second connecting member are rotatably connected through bearings. On the inner wall of the first connecting member, a rotating connecting cylinder is connected. One end of the first connecting member communicates with one end of the rotating connecting cylinder. On the inner wall of the second connecting member, a first sliding plate is slidably connected. A second sliding plate is arranged inside the first sliding plate. On one side of the first connecting member, four hydraulic telescopic cylinders are fixedly connected. The four hydraulic telescopic cylinders are evenly distributed at equal angles with respect to the central axis of the first connecting member. The four hydraulic telescopic cylinders are divided into two groups with one separated from the other. The output ends of one group of the hydraulic telescopic cylinders are fixedly connected to the first sliding plate, and the output ends of the other group of the first sliding plate are fixedly connected to the second sliding plate. On one side of both the second sliding plate and the first sliding plate, a transmission connecting plate is fixedly connected. On the outer wall of the rotating connecting cylinder, a third connecting member is fixedly connected. On one side of the third connecting member, four rotating brackets are fixedly connected. The four are evenly distributed at equal angles with respect to the central axis of the third connecting member. A transmission rotating member is rotatably connected to the rotating bracket. One end of the transmission rotating member is rotatably connected to the corresponding transmission connecting plate. On the other side of the third connecting member, four chutes are provided. The four chutes are divided into two groups with one separated from the other. A first clamp is slidably connected in one group of the chutes. The two first clamps are symmetrically distributed with respect to the central axis of the third connecting member. A second clamp is slidably connected in the other group of the chutes. The first clamp and the second clamp are rotatably connected to the other end of the corresponding transmission rotating member.

[0007] Preferably, on one side of the first clamp close to the central axis of the third connecting member, two first mounting members are fixedly connected. A first roller is rotatably connected to the first mounting member. On one side of the second clamp close to the central axis of the third connecting member, two second mounting members are fixedly connected. A second roller is rotatably connected to the second mounting member. The two first mounting members and the two second mounting members are arranged in a staggered manner.

[0008] Preferably, one end of the first connecting member far from the rotating connecting cylinder communicates with a gear connecting member. One end of the gear connecting member far from the first connecting member communicates with a fourth connecting member. The other end of the fourth connecting member communicates with an adjusting plate. Four adjusting seats are fixedly connected to the adjusting plate. The four adjusting seats are evenly distributed at equal angles with respect to the central axis of the adjusting plate.

[0009] Preferably, an auxiliary block is slidably connected to the inner wall of the adjusting seat. An adjusting member is slidably connected to one side of the adjusting seat far from the adjusting plate. A fixing bolt is rotatably connected to the adjusting member. The fixing bolt is threadedly connected to the auxiliary block. A third roller is rotatably connected to one side of the adjusting member close to the central axis of the adjusting plate.

[0010] Preferably, one end of the chuck fixing seat communicates with a first support member, the first support member is rotatably connected to the third connecting member, and the end of the chuck fixing seat away from the first support member communicates with a second support member.

[0011] Preferably, the other end of the second support member communicates with a motor support member, a motor mounting plate is fixedly connected to the motor support member, a motor is fixedly connected to the motor mounting plate, and the output end of the motor penetrates through one side of the motor mounting plate and is fixedly connected to a second gear.

[0012] Preferably, a first gear is fixedly connected to the outer wall of the gear connecting member, and the first gear meshes with the second gear.

[0013] The utility model has at least the following beneficial effects:

[0014] 1. By the output ends of the two hydraulic telescopic cylinders extending to drive the first sliding plate and the second sliding plate to move respectively, the first sliding plate and the second sliding plate drive the corresponding transmission rotating members to move respectively. Under the action of the rotating bracket, the two transmission rotating members drive the corresponding two first jigs and two second jigs to slide and approach in the chute. After loosening the fixing bolts, the sliding auxiliary block and the adjusting member can adjust the distance of the four third rollers relative to the central axis of the adjusting plate, and can adjust the size of the clamping opening of the heavy-duty universal chuck to clamp workpieces of different sizes, greatly increasing the versatility of the heavy-duty universal chuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application, and constitute a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application, and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a three-dimensional Figure 1 schematic diagram provided by the present utility model;

[0017] Figure 2 is a three-dimensional Figure 2 schematic diagram provided by the present utility model;

[0018] Figure 3 is a cross-sectional view provided by the present utility model;

[0019] Figure 4 is a partial exploded schematic diagram provided by the present utility model;

[0020] Figure 5 is a partial structural schematic diagram provided by the present utility model.

[0021] In the figure, 1 is a chuck fixing seat; 11 is a first support member; 12 is a second support member; 13 is a motor support member; 131 is a motor mounting plate; 2 is a rotating connection cylinder; 21 is a first connecting member; 211 is a hydraulic telescopic cylinder; 22 is a second connecting member; 221 is a first sliding plate; 222 is a second sliding plate; 223 is a transmission connecting plate; 23 is a third connecting member; 231 is a rotating bracket; 232 is a transmission rotating member; 233 is a first clamp; 2331 is a first mounting member; 2332 is a first roller; 234 is a second clamp; 2341 is a second mounting member; 2342 is a second roller; 25 is a gear connecting member; 251 is a first gear; 26 is a fourth connecting member; 3 is a motor; 31 is a second gear; 4 is an adjusting plate; 41 is an adjusting seat; 42 is an auxiliary block; 43 is an adjusting member; 44 is a fixing bolt; 45 is a third roller. Detailed implementation manners

[0022] The following will, in conjunction with the accompanying drawings and embodiments, elaborate on the implementation manners of the present application, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0023] As Figures 1 - 5As shown in the figure, the adjustable heavy-duty universal chuck provided in this embodiment includes a chuck fixing seat 1. A first connecting member 21 and a second connecting member 22 are rotatably connected to the inner wall of the chuck fixing seat 1 through bearings. A rotating connecting cylinder 2 is connected to the inner wall of the first connecting member 21. One end of the first connecting member 21 is communicated with the rotating connecting cylinder 2. A first sliding plate 221 is slidably connected to the inner wall of the second connecting member 22. A second sliding plate 222 is provided inside the first sliding plate 221. Four hydraulic telescopic cylinders 211 are fixedly connected to one side of the first connecting member 21. The four hydraulic telescopic cylinders 211 are evenly distributed at equal angles about the central axis of the first connecting member 21. The four hydraulic telescopic cylinders 211 are divided into two groups with one separated from the other. The output ends of one group of hydraulic telescopic cylinders 211 are fixedly connected to the first sliding plate 221, and the output ends of the other group of the first sliding plate 221 are fixedly connected to the second sliding plate 222. Transmission connecting plates 223 are fixedly connected to one side of both the second sliding plate 222 and the first sliding plate 221. A third connecting member 23 is fixedly connected to the outer wall of the rotating connecting cylinder 2. A fourth connecting member 23 is fixedly connected to one side of the third connecting member 23. Four rotating brackets 231 are fixedly connected to the fourth connecting member 23. The four rotating brackets 231 are evenly distributed at equal angles about the central axis of the third connecting member 23. A transmission rotating member 232 is rotatably connected to the rotating bracket 231. One end of the transmission rotating member 232 is rotatably connected to the corresponding transmission connecting plate 223. Four chutes are formed on the other side of the third connecting member 23. The four chutes are divided into two groups with one separated from the other. A first fixture 233 is slidably connected in one group of chutes. The two first fixtures 233 are symmetrically distributed about the central axis of the third connecting member 23. A second fixture 234 is slidably connected in the other group of chutes. The first fixture 233 and the second fixture 234 are rotatably connected to the other end of the corresponding transmission rotating member 232. By the output ends of the two groups of hydraulic telescopic cylinders 211 extending to drive the first sliding plate 221 and the second sliding plate 222 to move respectively, the first sliding plate 221 and the second sliding plate 222 drive the corresponding transmission rotating members 232 to move respectively. Under the action of the rotating brackets 231, the two groups of transmission rotating members 232 drive the corresponding two first fixtures 233 and two second fixtures 234 to slide and approach in the chutes.

[0024] Secondly, as shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 5As shown, on one side of the first clamp 233 close to the central axis of the third connecting member 23, two first mounting members 2331 are fixedly connected. A first roller 2332 is rotatably connected to the first mounting member 2331. On one side of the second clamp 234 close to the central axis of the third connecting member 23, two second mounting members 2341 are fixedly connected. A second roller 2342 is rotatably connected to the second mounting member 2341. The two first mounting members 2331 and the two second mounting members 2341 are distributed in a staggered manner. By the staggered distribution of the two first mounting members 2331 and the two second mounting members 2341, the firmness of clamping is increased.

[0025] Further, as Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, at one end of the first connecting member 21 away from the rotating connection cylinder 2, a gear connecting member 25 is communicated. At one end of the gear connecting member 25 away from the first connecting member 21, a fourth connecting member 26 is communicated. At the other end of the fourth connecting member 26, an adjusting plate 4 is communicated. Four adjusting seats 41 are fixedly connected to the adjusting plate 4. The four adjusting seats 41 are evenly distributed at equal angles with respect to the central axis of the adjusting plate 4. An auxiliary block 42 is slidably connected to the inner wall of the adjusting seat 41. An adjusting member 43 is slidably connected to one side of the adjusting seat 41 away from the adjusting plate 4. A fixing bolt 44 is rotatably connected to the adjusting member 43. The fixing bolt 44 is threadedly connected to the auxiliary block 42. A third roller 45 is rotatably connected to one side of the adjusting member 43 close to the central axis of the adjusting plate 4. After loosening the fixing bolt 44, by sliding the auxiliary block 42 and the adjusting member 43, the distance of the four third rollers 45 relative to the central axis of the adjusting plate 4 can be adjusted, and it can be applicable to clamping workpieces of different sizes.

[0026] Still further, as Figure 1 , Figure 3 and Figure 4 shown, at one end of the chuck fixing seat 1, a first support member 11 is communicated. The first support member 11 is rotatably connected to the third connecting member 23. At one end of the chuck fixing seat 1 away from the first support member 11, a second support member 12 is communicated. At the other end of the second support member 12, a motor support member 13 is communicated. A motor mounting plate 131 is fixedly connected to the motor support member 13. A motor 3 is fixedly connected to the motor mounting plate 131. The output end of the motor 3 penetrates through one side of the motor mounting plate 131 and is fixedly connected to a second gear 31. A first gear 251 is fixedly connected to the outer wall of the gear connecting member 25. The first gear 251 meshes with the second gear 31. By driving the second gear 31 to rotate by the motor 3, the second gear 31 drives the first gear 251 to rotate. The first gear 251 drives the gear connecting member 25, the fourth connecting member 26, the rotating connection cylinder 2, the first connecting member 21, the second connecting member 22 and the third connecting member 23 to rotate, so as to drive the clamped workpiece to rotate.

[0027] As shown Figures 1 - 5 in the figure, the principle of the adjustable heavy-duty universal chuck provided in this embodiment is as follows: When using this adjustable heavy-duty universal chuck, the output ends of two sets of hydraulic telescopic cylinders 211 extend to drive the first sliding plate 221 and the second sliding plate 222 to move respectively. The first sliding plate 221 and the second sliding plate 222 drive the corresponding transmission rotating parts 232 to move respectively. Under the action of the rotating bracket 231, the two sets of transmission rotating parts 232 drive the corresponding two first clamps 233 and two second clamps 234 to slide and approach in the chute. After loosening the fixing bolts 44, the sliding auxiliary block 42 and the adjusting part 43 can adjust the distances of the four third rollers 45 relative to the central axis of the adjusting plate 4, and can be applicable to clamping workpieces of different sizes. The motor 3 drives the second gear 31 to rotate, the second gear 31 drives the first gear 251 to rotate, and the first gear 251 drives the gear connecting piece 25, the fourth connecting piece 26, the rotating connecting cylinder 2, the first connecting piece 21, the second connecting piece 22 and the third connecting piece 23 to rotate, thereby driving the clamped workpiece to rotate.

[0028] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0029] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0030] The foregoing description has shown and described several preferred embodiments of the present utility model. However, as previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. An adjustable heavy-duty universal chuck, comprising a chuck fixing seat (1), characterized in that: A first connecting member (21) and a second connecting member (22) are rotatably connected to the inner wall of the chuck fixing seat (1) via a bearing, a rotating connecting tube (2) is connected to the inner wall of the first connecting member (21), the first connecting member (21) is communicated with one end of the rotating connecting tube (2), a first sliding plate (221) is slidably connected to the inner wall of the second connecting member (22), a second sliding plate (222) is arranged inside the first sliding plate (221), four hydraulic telescopic cylinders (211) are fixedly connected to one side of the first connecting member (21), the four hydraulic telescopic cylinders (211) are evenly distributed at equal angles with respect to the central axis of the first connecting member (21), the four hydraulic telescopic cylinders (211) are divided into two groups with each other, the output end of one group of the hydraulic telescopic cylinders (211) is fixedly connected to the first sliding plate (221), the output end of the other group of the first sliding plate (221) is fixedly connected to the second sliding plate (222), the second sliding plate (222) and the first sliding plate (221) are fixedly connected to each other. A transmission connecting plate (223) is fixedly connected to one side of the plate (221); a third connecting member (23) is fixedly connected to the outer wall of the rotating connecting cylinder (2); four rotating brackets (231) are fixedly connected to one side of the third connecting member (23); the four rotating brackets (231) are evenly distributed at equal angles with respect to the central axis of the third connecting member (23); a transmission rotating member (232) is rotatably connected to the rotating bracket (231); one end of the transmission rotating member (232) is connected to the corresponding transmission connecting plate (223). Rotationally connected, four sliding grooves are opened on the other side of the third connecting member (23), and the four sliding grooves are divided into two groups with each other as one group. A first clamp (233) is slidably connected in the sliding grooves of one group, and the two first clamps (233) are symmetrically distributed about the central axis of the third connecting member (23). A second clamp (234) is slidably connected in the sliding grooves of the other group, and the first clamp (233) and the second clamp (234) are rotationally connected to the other end of the corresponding transmission rotating member (232).

2. The adjustable heavy-duty universal chuck according to claim 1, characterized in that: Two first mounting members (2331) are fixedly connected to one side of the first clamp (233) close to the central axis of the third connecting member (23), and a first roller (2332) is rotatably connected to the first mounting member (2331). Two second mounting members (2341) are fixedly connected to one side of the second clamp (234) close to the central axis of the third connecting member (23), and a second roller (2342) is rotatably connected to the second mounting member (2341). The two first mounting members (2331) and the two second mounting members (2341) are staggered in distribution.

3. The adjustable heavy-duty universal chuck according to claim 2, characterized in that: One end of the first connecting member (21) away from the rotating connecting cylinder (2) is connected to a gear connecting member (25), one end of the gear connecting member (25) away from the first connecting member (21) is connected to a fourth connecting member (26), the other end of the fourth connecting member (26) is connected to an adjustment plate (4), and four adjustment seats (41) are fixedly connected to the adjustment plate (4), and the four adjustment seats (41) are evenly distributed at equal angles with respect to the central axis of the adjustment plate (4).

4. The adjustable heavy-duty universal chuck according to claim 3, characterized in that: An auxiliary block (42) is slidably connected to the inner wall of the adjustment seat (41); an adjustment member (43) is slidably connected to the side of the adjustment seat (41) away from the adjustment plate (4); a fixing bolt (44) is rotatably connected to the adjustment member (43); the fixing bolt (44) is threadedly connected to the auxiliary block (42); and a third roller (45) is rotatably connected to the side of the adjustment member (43) close to the central axis of the adjustment plate (4).

5. The adjustable heavy-duty universal chuck according to claim 3, characterized in that: One end of the chuck fixing seat (1) is connected to a first support member (11), the first support member (11) is rotatably connected to the third connecting member (23), and one end of the chuck fixing seat (1) away from the first support member (11) is connected to a second support member (12).

6. The adjustable heavy-duty universal chuck according to claim 5, characterized in that: The other end of the second support member (12) is connected to a motor support member (13), a motor mounting plate (131) is fixedly connected to the motor support member (13), a motor (3) is fixedly connected to the motor mounting plate (131), and an output end of the motor (3) passes through one side of the motor mounting plate (131) and is fixedly connected to a second gear (31).

7. The adjustable heavy-duty universal chuck according to claim 6, characterized in that: A first gear (251) is fixedly connected to the outer wall of the gear connecting member (25), and the first gear (251) is meshed with the second gear (31).

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