A tubular workpiece chuck worktable

Abstract

This utility model relates to the field of pipe processing technology, and in particular to a chuck worktable for tubular workpieces. It aims to overcome the technical problem in related technologies where, during the processing of long pipes, the independent setting of the chucks causes the pipe to sag and deviate during clamping, making it difficult to ensure coaxiality during subsequent clamping, leading to uneven force distribution, increased risk of deformation, and reduced processing accuracy. This tubular workpiece chuck worktable features two chucks driven synchronously by a synchronization component to simultaneously clamp the workpiece, avoiding the cantilever beam sagging phenomenon caused by sequential clamping operations. This improves the coaxiality of the clamping of each chuck, reduces the risk of workpiece deformation, and thus improves processing accuracy. It overcomes the technical problem in existing tubular workpiece clamping mechanisms where, during the processing of long pipes, the independent setting of the chucks causes the pipe to sag and deviate during clamping, making it difficult to ensure coaxiality during subsequent clamping, leading to uneven force distribution, increased risk of deformation, and reduced processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a chuck worktable for tubular workpieces. Background Technology

[0002] When performing high-precision machining on the inner wall of long pipes, a clamping mechanism is required to secure the pipe. Conventional clamping mechanisms typically use independently configured chucks, requiring separate clamping and unloading operations, which limits clamping efficiency. During clamping, after securing one chuck, the unsecured portion of the pipe will sag and deviate due to the cantilever beam effect. When subsequent chucks are clamped, the already deviated pipe is difficult to keep coaxial with the secured chucks, leading to uneven stress on the pipe, increasing the risk of deformation, and ultimately affecting machining accuracy.

[0003] Existing tubular workpiece clamping mechanisms have technical problems such as the tube sags and deviates during clamping due to the independent setting of the chuck when machining long tubes, making it difficult to ensure coaxiality during subsequent clamping, which in turn leads to uneven force, increased risk of deformation, and affects machining accuracy. Utility Model Content

[0004] The purpose of this utility model is to provide a chuck worktable for tubular workpieces to overcome the technical problems in related technologies where the independent setting of the chuck during the processing of long tubes causes the tube to sag and deviate during clamping, making it difficult to ensure coaxiality during subsequent clamping, which in turn leads to uneven force, increased risk of deformation, and affects processing accuracy.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The tubular workpiece chuck worktable provided by this utility model includes:

[0007] The machine includes a frame, chucks, and a synchronization assembly. The frame is mounted on the bed, and the two chucks are coaxially located at opposite ends of the frame. The synchronization assembly is mounted on the frame and is poweredly connected to both chucks, used for synchronously clamping or releasing each chuck.

[0008] Specifically, the synchronization assembly includes a first turbine, a second turbine, and a synchronizing worm gear, the synchronizing worm gear meshing with both the first and second turbines simultaneously. The rotation of the synchronizing worm gear around its own axis drives the first and second turbines to rotate, thereby synchronously clamping or releasing the two chucks.

[0009] Specifically, the frame includes a base and positioning plates, with two positioning plates disposed on both sides of the base. The positioning plates are threadedly connected to both the base and the chuck, and the chuck is indirectly mounted to the base via the positioning plates, used to correct the coaxiality of the two chucks.

[0010] Specifically, the synchronizing worm gear includes a first worm, a second worm, and a connecting shaft, which are sequentially connected. The first worm meshes with the first turbine, and the second worm meshes with the second turbine. The rotation of the first turbine is transmitted to the second turbine sequentially through the meshing of the first turbine with the first worm, and through the meshing of the connecting shaft and the second worm with the second turbine, thus achieving synchronous rotation of the first turbine and the second turbine.

[0011] Specifically, the synchronization component also includes a support frame, which is mounted on the base. The first turbine, the second turbine, and the connecting shaft are all rotatably mounted on the support frame to prevent the rotation shaft from being misaligned, thereby ensuring stable meshing of the first turbine, the second turbine, and the synchronization worm.

[0012] Specifically, the synchronization component further includes a locking pin, and the connecting shaft has an annular groove. The locking pin is inserted into the support frame and engaged with the annular groove to achieve axial positioning of the connecting shaft.

[0013] Specifically, the synchronization component also includes a handwheel, which is located at the end of the first worm or the second worm away from the connecting shaft, and is used to drive the synchronization worm to rotate.

[0014] Specifically, the frame also includes a bolt pair, one end of which is connected to the base, and the other end is engaged with and slides in a guide groove in the bed. The bolt pair can drive the frame to slide along the guide groove, used to adjust and secure the relative position of the frame and the bed.

[0015] Specifically, the frame has a through hole, which is coaxial with the chuck and extends through the base and the positioning plate, allowing the workpiece to pass through the through hole so that it can be clamped by both chucks simultaneously.

[0016] Specifically, the chuck is provided with a drive groove, and the first turbine and the second turbine are provided with plugs. The plugs are inserted into the drive groove, and the rotation of the first turbine and the second turbine around their own axes is used to transmit power to the chuck.

[0017] Based on the above technical solutions, the beneficial effects of this utility model are analyzed as follows:

[0018] This utility model provides a tubular workpiece chuck worktable, comprising:

[0019] The machine includes a frame, chucks, and a synchronization assembly. The frame is mounted on the bed, and the two chucks are coaxially located at opposite ends of the frame. The synchronization assembly is mounted on the frame and is poweredly connected to both chucks, used for synchronously clamping or releasing each chuck.

[0020] In practical applications, the workpiece is passed across the two chucks, and the synchronization component is operated to simultaneously drive the two chucks to complete the clamping operation on the workpiece at the same time. This avoids the cantilever beam sagging phenomenon caused by sequential clamping operations, thereby improving the clamping coaxiality of each chuck, reducing the risk of workpiece deformation, and thus improving machining accuracy.

[0021] As can be seen, compared with the prior art, this tubular workpiece chuck table is equipped with two chucks that are synchronously driven by the aforementioned synchronization component to simultaneously complete the clamping operation on the workpiece. This avoids the cantilever beam sagging phenomenon caused by sequential clamping operations, thereby improving the clamping coaxiality of each chuck, reducing the risk of workpiece deformation, and thus improving machining accuracy. It overcomes the technical problems of existing tubular workpiece clamping mechanisms, where the independent setting of the chucks during long tube machining causes the tube to sag and deviate during clamping, making it difficult to ensure coaxiality in subsequent clamping, leading to uneven force distribution, increased risk of deformation, and affecting machining accuracy. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the overall structure of the tubular workpiece chuck worktable provided in this embodiment of the utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the tubular workpiece chuck worktable. Figure 2 ;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the chuck table for the tubular workpiece. Figure 1 ;

[0026] Figure 4 Schematic diagram of the cross-sectional structure of the chuck table for the tubular workpiece. Figure 2 ;

[0027] Figure 5 Schematic diagram of the card receiving pin. Figure 1 ;

[0028] Figure 6 Schematic diagram of the card receiving pin. Figure 2 .

[0029] icon:

[0030] 001. Bed; 002. Guide groove;

[0031] 100. Frame; 101. Through hole; 110. Base; 120. Positioning plate; 130. Bolt pair;

[0032] 200. Chuck; 201. Drive slot;

[0033] 300. Synchronizing assembly; 310. First worm gear; 301. Plug-in bolt; 320. Second worm gear; 330. Synchronizing worm gear; 331. First worm gear; 332. Second worm gear; 333. Connecting shaft; 302. Annular groove; 340. Support frame; 350. Snap-fit ​​pin; 360. Handwheel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] Existing tubular workpiece clamping mechanisms have technical problems such as the tube sags and deviates during clamping due to the independent setting of the chuck when machining long tubes, making it difficult to ensure coaxiality during subsequent clamping, which in turn leads to uneven force, increased risk of deformation, and affects machining accuracy.

[0038] In view of this, the present invention provides a tubular workpiece chuck worktable, comprising:

[0039] The machine frame 100, chucks 200, and synchronization assembly 300 are included. The machine frame 100 is mounted on the bed 001, and the two chucks 200 are coaxially located at both ends of the machine frame 100. The synchronization assembly 300 is mounted on the machine frame 100 and is poweredly connected to both chucks 200 simultaneously, used for synchronously clamping or releasing each chuck 200.

[0040] In summary, the tubular workpiece chuck worktable provided by this utility model can achieve the following technical effects:

[0041] The tubular workpiece chuck 200 worktable is equipped with two chucks 200 that are synchronously driven by a synchronization component 300 to simultaneously clamp the workpiece. This avoids the cantilever beam sagging phenomenon caused by sequential clamping operations, thereby improving the coaxiality of the clamping of each chuck 200, reducing the risk of workpiece deformation, and thus improving machining accuracy. It overcomes the technical problems of existing tubular workpiece clamping mechanisms, where the independent setting of the chuck 200 during long tube machining causes the tube to sag and deviate during clamping, making it difficult to ensure coaxiality in subsequent clamping, leading to uneven force distribution, increased risk of deformation, and affecting machining accuracy.

[0042] The following combination Figures 1 to 6 The structure and shape of the tubular workpiece chuck worktable provided in this embodiment are described in detail below:

[0043] Regarding the structural composition of the synchronization component 300, specifically:

[0044] The synchronizing assembly 300 includes a first turbine 310, a second turbine 320, and a synchronizing worm 330, which meshes with both the first turbine 310 and the second turbine 320. The rotation of the synchronizing worm 330 around its own axis drives the first turbine 310 and the second turbine 320 to rotate synchronously, thereby clamping or releasing the two chucks 200.

[0045] In this embodiment, the chuck 200 is provided with a drive groove 201, and the first turbine 310 and the second turbine 320 are provided with a plug 301. The plug 301 is inserted into the drive groove 201, and the rotation of the first turbine 310 and the second turbine 320 around their own axes is used to transmit power to the chuck 200.

[0046] Specifically, the chuck 200 includes a chuck body, movable jaws, a drive disc, and a drive gear. Multiple movable jaws are evenly distributed around the axial direction of the chuck body and slide radially along the chuck body. The drive disc is rotatably connected to the chuck body and has helical grooves into which the movable jaws mesh. The drive gear is rotatably connected to the chuck body and meshes with the drive disc. A drive groove 201 is provided on the drive gear, and the rotation of the drive gear drives the movable jaws to slide synchronously radially along the chuck body through meshing with the drive disc.

[0047] Regarding the structural composition of the synchronization component 300, specifically:

[0048] The frame 100 includes a base 110 and two positioning plates 120, with the positioning plates 120 disposed on both sides of the base 110. The positioning plates 120 are threadedly connected to the base 110 and the chuck 200, respectively. The chuck 200 is indirectly mounted to the base 110 via the positioning plates 120, used to correct the coaxiality of the two chucks 200. The volume of the positioning plates 120 is much smaller than that of the base 110. When a coaxiality deviation occurs between the two chucks 200, the coaxiality can be corrected by machining and replacing the positioning plates 120, thereby reducing the re-machining cost of correction.

[0049] Regarding the structural composition of the synchronization component 300, specifically:

[0050] The synchronizing worm gear 330 includes a first worm gear 331, a second worm gear 332, and a connecting shaft 333, which are sequentially connected. The first worm gear 331 meshes with the first turbine gear 310, and the second worm gear 332 meshes with the second turbine gear 320. The rotation of the first turbine gear 310 is transmitted to the second turbine gear 320 sequentially through the meshing of the first turbine gear 310 with the first worm gear 331, and through the meshing of the connecting shaft 333 and the second worm gear 332 with the second turbine gear 320, thus achieving synchronous rotation of the first turbine gear 310 and the second turbine gear 320.

[0051] In this embodiment, the synchronization component 300 further includes a support frame 340, which is mounted on the base 110. The first turbine 310, the second turbine 320, and the connecting shaft 333 are all rotatably mounted on the support frame 340 to prevent the rotation shaft from being misaligned, thereby ensuring stable meshing of the first turbine 310, the second turbine 320, and the synchronization worm 330.

[0052] Specifically, regarding how connecting shaft 333 achieves axial positioning:

[0053] The synchronization assembly 300 also includes a retaining pin 350, and the connecting shaft 333 has an annular groove 302. The retaining pin 350 is inserted into the support frame 340 and engaged in the annular groove 302 to achieve axial positioning of the connecting shaft 333.

[0054] To facilitate the operation of the synchronizing worm 330, in this embodiment, the synchronizing assembly 300 further includes a handwheel 360, which is located at the end of the first worm 331 or the second worm 332 away from the connecting shaft 333, and is used to drive the synchronizing worm 330 to rotate.

[0055] In this embodiment, the frame 100 further includes a bolt pair 130, one end of which is connected to the base 110, and the other end is engaged with and slides in the guide groove 002 opened in the bed 001. The bolt pair 130 can drive the frame 100 to slide along the guide groove 002, and is used to adjust and fasten the relative position of the frame 100 and the bed 001.

[0056] In this embodiment, the frame 100 has a through hole 101. The through hole 101 is coaxial with the chuck 200 and passes through the base 110 and the positioning plate 120, allowing the workpiece to pass through the through hole 101 and be clamped by both chucks 200 simultaneously. The through hole 101 has a larger diameter than the chuck 200, thereby reducing the coaxiality requirement between the through hole 101 and the chuck 200 and improving installation efficiency. This avoids the situation where a misalignment occurs due to a coaxiality deviation between the chuck 200 and the through hole 101, preventing long tube workpieces from abutting against the positioning plate 120 and passing through the through hole 101.

[0057] In summary, the specific working process of the tubular workpiece chuck table provided in this embodiment is as follows:

[0058] The long tube workpiece is passed horizontally through the hole 101 and the two chucks 200, and then the handwheel 360 is turned to drive the first worm 331 and the second worm 332 to rotate simultaneously.

[0059] The rotation of the first worm 331 and the second worm 332 is used to drive the drive gear in the chuck 200 to rotate by means of the meshing of the first worm 331 with the first turbine 310 and the meshing of the second worm 332 with the second turbine 320. Then, through the meshing of the drive gear, the drive disk and the movable jaws in sequence, the movable jaws are driven to slide synchronously along the radial direction of the disk body.

[0060] The simultaneous clamping operation of the two chucks 200 allows for multi-point clamping of long tube workpieces, avoiding the cantilever beam sagging phenomenon caused by sequential clamping operations. This improves the coaxiality of the clamping of each chuck 200, reduces the risk of workpiece deformation, and thus improves machining accuracy.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tubular workpiece chuck table characterized by, include: Rack (100), chuck (200) and synchronization assembly (300); The frame (100) is mounted on the bed (001), and the two chucks (200) are coaxially disposed at both ends of the frame (100); The synchronization component (300) is mounted on the frame (100) and is poweredly connected to both chucks (200) simultaneously for synchronously clamping or releasing each of the chucks (200).

2. The tubular workpiece chuck worktable according to claim 1, characterized in that: The synchronization assembly (300) includes a first turbine (310), a second turbine (320) and a synchronization worm (330), the synchronization worm (330) being simultaneously engaged with the first turbine (310) and the second turbine (320). The rotation of the synchronizing worm (330) around its own axis is used to drive the first turbine (310) and the second turbine (320) to rotate in a synchronized manner to clamp or release the two chucks (200).

3. The tubular workpiece chuck worktable according to claim 2, characterized in that: The frame (100) includes a base (110) and positioning plates (120), with two positioning plates (120) disposed on both sides of the base (110); The positioning plate (120) is threadedly connected to the base (110) and the chuck (200) respectively. The chuck (200) is indirectly installed on the base (110) through the positioning plate (120) to correct the coaxiality of the installation of the two chucks (200).

4. The tubular workpiece chuck worktable according to claim 3, characterized in that: The synchronizing worm gear (330) includes a first worm gear (331), a second worm gear (332), and a connecting shaft (333), wherein the first worm gear (331), the connecting shaft (333), and the second worm gear (332) are connected in sequence; The first worm (331) meshes with the first turbine (310), and the second worm (332) meshes with the second turbine (320). The rotation of the first turbine (310) is transmitted to the second turbine (320) in sequence through the meshing of the first turbine (310) with the first worm (331), the meshing of the connecting shaft (333) and the second worm (332) with the second turbine (320), thereby realizing the synchronous rotation of the first turbine (310) and the second turbine (320).

5. The tubular workpiece chuck worktable according to claim 4, characterized in that: The synchronization assembly (300) also includes a support frame (340), which is mounted on the base (110). The first turbine (310), the second turbine (320), and the connecting shaft (333) are all rotatably mounted on the support frame (340) to prevent the rotation shaft from being misaligned, so as to ensure the stable meshing of the first turbine (310), the second turbine (320), and the synchronization worm (330).

6. The tubular workpiece chuck worktable according to claim 5, characterized in that: The synchronization component (300) also includes a snap-fit ​​pin (350), and the connecting shaft (333) has an annular groove (302). The locking pin (350) is inserted into the support frame (340) and locked into the annular groove (302) to achieve axial positioning of the connecting shaft (333).

7. The tubular workpiece chuck worktable according to claim 5, characterized in that: The synchronization component (300) also includes a handwheel (360), which is located at the end of the first worm (331) or the second worm (332) away from the connecting shaft (333) and is used to drive the synchronization worm (330) to rotate.

8. The tubular workpiece chuck worktable according to claim 3, characterized in that: The frame (100) also includes a bolt pair (130), one end of which is connected to the base (110), and the other end is engaged and slidable in the guide groove (002) opened in the bed (001); The bolt pair (130) can drive the frame (100) to slide along the guide groove (002) to adjust and fasten the relative position of the frame (100) and the bed (001).

9. The tubular workpiece chuck worktable according to claim 3, characterized in that: The frame (100) has a through hole (101) that is coaxial with the chuck (200) and passes through the base (110) and the positioning plate (120), allowing the workpiece to pass through the through hole (101) and be clamped by both chucks (200) at the same time.

10. The tubular workpiece chuck worktable according to claim 2, characterized in that: The chuck (200) is provided with a drive groove (201), and the first turbine (310) and the second turbine (320) are provided with plugs (301). The plugs (301) are inserted into the drive groove (201). The rotation of the first turbine (310) and the second turbine (320) around their own axes is used to transmit power to the chuck (200).

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