Fixture device for coaxially splicing two round bars

Abstract

The utility model discloses a fixture device for coaxially splicing two round bars, which comprises two lower clamping jaws and two upper clamping jaws, the two lower clamping jaws are arranged at intervals, the two upper clamping jaws are correspondingly matched with the two lower clamping jaws and are arranged at intervals, and each lower clamping jaw and the corresponding upper clamping jaw are mounted on a manually-driven reverse synchronous moving ball screw. A reverse synchronous moving track is arranged on one side of the reverse synchronous moving ball screw in the radial direction in parallel, and when the reverse synchronous moving ball screw rotates, the lower clamping jaw and the upper clamping jaw conduct reverse synchronous moving under guiding of a linear guide rail of the reverse synchronous moving track. According to the utility model, the reverse synchronous ball screw drives the upper clamping jaw and the lower clamping jaw to synchronously and centripetally move, so that the stability of a central axis is ensured, the installation structure of equipment is simplified, and the installation space required by the equipment is greatly reduced; and the equipment can meet the functional requirements of most of equipment in the aspect of coaxial splicing of a plurality of round bars.

Description

Technical Field

[0001] This utility model relates to the technical field of coaxial splicing devices for bar stock, and in particular to a clamping device for coaxial splicing two round bars. Background Technology

[0002] In the wafer ingot processing system of the photovoltaic industry, two short rods are typically joined together to form a long rod using a coaxial splicing device, thus requiring a rod clamp. The coaxial splicing of the two rods is accomplished using this clamp. Existing coaxial splicing devices often employ cylinder-connecting rod driven clamps to ensure coaxiality after clamping. These clamps are complex in structure, often requiring significant space and exhibiting large deviations in the centripetal motion during synchronous centripetal movement. This situation mutually restricts the high coaxiality precision required by the coaxial splicing equipment. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and defects of the existing technology and provide a compact, simple, and easy-to-install coaxial splicing fixture for two round bars. By clamping two round bars with two sets of counter-rotating ball screw clamps, the splicing work that meets the coaxiality requirements can be completed, achieving the goals of simple structure, reliable performance, and easy installation.

[0004] A coaxial splicing clamping device for two round bars includes two spaced-apart lower jaws and two spaced-apart upper jaws that correspond to and cooperate with the two lower jaws. Each lower jaw and its corresponding upper jaw are mounted on a manually driven counter-moving ball screw. A counter-moving track is arranged parallel to one side of the counter-moving ball screw in the radial direction. When the counter-moving ball screw rotates, the lower jaws and the upper jaws move in opposite directions under the guidance of the linear guide rail of the counter-moving track.

[0005] The upper end of the reverse-moving ball screw is connected to a manual drive assembly, which includes a worm gear reducer and a handwheel. The input shaft of the worm gear reducer is connected to the handwheel.

[0006] The artificial drive component is connected to the reverse moving track via a keyway at the shaft end.

[0007] The reverse moving track is arranged on the guide rail mounting frame, and the upper and lower ends of the guide rail mounting frame have an upward mounting plate and a lower mounting plate, respectively.

[0008] The upper and lower mounting plates at the upper and lower ends of the guide rail mounting bracket are respectively connected to the screw fixing seat and the screw support seat. The screw fixing seat and the screw support seat are respectively connected to the upper and lower ends of the shaft of the counter-moving ball screw.

[0009] The outer side of the lead screw support seat has a locking nut at the shaft end of the reverse-moving ball screw.

[0010] The reverse co-moving track has two sliders, and the two sliders are respectively connected to a nut bracket connected to the reverse co-moving ball screw. The lower jaw and the upper jaw are each connected to a nut bracket.

[0011] The two nut brackets are connected to the two corresponding sliders by mating left-hand and right-hand nuts.

[0012] The lower jaw and the upper jaw are each connected to a nut bracket by bolting.

[0013] The upper gripper is an adjustable gripper.

[0014] This invention abandons the cylinder-connecting rod driven clamping method commonly used in coaxial splicing equipment for two round bars, and instead uses a reverse-moving ball screw to drive the upper and lower jaws to move synchronously in a centripetal motion, ensuring the stability of the central axis. By using the reverse-moving ball screw centripetal motion, not only is the installation structure of the equipment simplified, but the installation space required for the equipment is also greatly reduced. The simpler structure and compact size of this invention enable the equipment to meet the functional requirements of most equipment in the coaxial splicing of multiple round bars. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the reverse-moving ball screw of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the worm gear reducer transmission structure of this utility model;

[0018] Figure 4 This is a three-dimensional structural schematic diagram of the present invention;

[0019] In the picture:

[0020] 1-Reverse-acting ball screw, 2-Left-hand nut, 3-Right-hand nut, 4-Nut bracket, 5-Screw fixed end, 6-Screw support end, 7-Reverse-acting rail, 8-Lower gripper, 9-Upper gripper, 10-Worm gear reducer, 11-Handwheel, 12-Anti-rotation fixing component, 13-Guide rail mounting bracket, 14-Connecting plate, 15-Nut. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0022] Please see Figures 1 to 4 As shown, a coaxial splicing clamping device for two round bars includes two spaced-apart lower jaws 8 and two spaced-apart upper jaws 9 corresponding to the two lower jaws. Each lower jaw 8 and its corresponding upper jaw 9 is mounted on a manually driven counter-rotating ball screw 1. A counter-rotating track is arranged parallel to the radial side of the counter-rotating ball screw 1. When the counter-rotating ball screw 1 rotates, the lower jaw 8 and the upper jaw 9 move in opposite directions under the guidance of the counter-rotating track 7.

[0023] In some embodiments, the upper end of the reverse-moving ball screw 1 is connected to a manual drive assembly. Optionally, in this application, the manual drive assembly includes a worm gear reducer 10 and a handwheel 11, with the input shaft end of the worm gear reducer 10 connected to the handwheel 11. By rotating the handwheel, power can be transmitted through the worm gear reducer 10 to drive the reverse-moving ball screw 1 to rotate. When the reverse-moving ball screw 1 rotates, the lower gripper 8 and the upper gripper 9 move in opposite directions under the guidance of the linear guide rail 7 of the reverse-moving track, thereby clamping or releasing the bar stock. The two sets of grippers can form a complete coaxial splicing fixture device for clamping two round bars and ensuring coaxial splicing.

[0024] In some embodiments, the lower gripper 8 and the upper gripper 9 each have two clamping plates, which are arranged opposite each other in a figure-eight shape, and the mounting base has a V-shaped structure, such as... Figure 1 As shown, this facilitates the clamping of the bar stock, such as... Figure 4 As shown.

[0025] In some embodiments, the manual drive component is connected to the reverse-moving track via a keyway at the shaft end, which can convert the manual hand-cranked rotational drive force into the reverse-moving clamping force of the ball screw.

[0026] In some embodiments, the reverse moving track is arranged on the guide rail mounting frame 13, and the upper end and lower end of the guide rail mounting frame have an upward mounting plate and a lower mounting plate, respectively. The upper mounting plate and the lower mounting plate are arranged horizontally and perpendicular to the three-dimensional structure that serves as the main mounting frame.

[0027] In some embodiments, the upper and lower mounting plates at the upper and lower ends of the guide rail mounting bracket 13 are respectively connected to the screw fixing seat 6 and the screw support seat 6. The screw fixing seat and the screw support seat are respectively connected to the upper and lower ends of the shaft of the reverse moving ball screw 1. Through this structural design, the reverse moving ball screw 1 is arranged and installed on the guide rail mounting bracket 13, so that the guide rail mounting bracket 13 also serves as a support frame for the reverse moving ball screw 1.

[0028] In some embodiments, a locking nut 15 is provided on the outer side of the lead screw support 6 at the shaft end of the reverse moving ball screw 1 to limit the installation of the reverse moving ball screw 1.

[0029] In some embodiments, the reverse co-moving track 7 has two sliders, and the two sliders are respectively connected to a nut bracket 4 connected to the reverse co-moving ball screw. The lower jaw and the upper jaw are each connected to a nut bracket 4.

[0030] In some embodiments, the two nut brackets 4 are connected to the corresponding two sliders on the linear guide rail via mating left-hand nuts 2 and right-hand nuts 4, thereby achieving connection with the reverse-moving track 7. The left-hand nuts 2, right-hand nuts 3, and nut brackets 4 (both left-hand and right-hand nuts are interchangeable) are sequentially installed on the corresponding nut side of the reverse-moving ball screw 1.

[0031] In some embodiments, the lower jaw and the upper jaw are each connected to a nut bracket 4 by bolting, which facilitates the replacement and maintenance of the lower jaw and the upper jaw.

[0032] In the embodiments of this application, the shaft end of the reverse-moving ball screw is provided with an anti-rotation fixing member 12, which is arranged on the top of the worm gear reducer 10. The anti-rotation fixing member 12 is used to lock the screw shaft by twisting the fastening handle after clamping the bar stock, so as to prevent the screw nut of the reverse-moving ball screw from falling under the force and to prevent the reverse-moving ball screw from reversing and affecting the clamping of the bar stock.

[0033] The guide rail mounting bracket 13 is connected to an equipment connecting plate 14 at its upper end. The equipment connecting plate 14 is connected to the worm gear reducer 10. The worm gear reducer 10 is installed on the top of the equipment connecting plate. The reverse-moving ball screw passes through the space inside the equipment connecting plate and is connected to the worm gear reducer 10.

[0034] In some embodiments, the upper gripper 9 can be a fixed gripper like the lower gripper 8, or it can be an existing upper fine-tuning gripper, such as one including an adjusting handwheel. By rotating the adjusting handwheel, the position of the upper fine-tuning gripper can be finely adjusted, that is, the initial relative position of the upper fine-tuning gripper with respect to the lower gripper 8. The adjusting handwheel is mounted on the upper fixed plate and is rotatably connected to the fixed plate by its screw, and is rotatably connected to the base of the upper fine-tuning gripper. The base of the upper fine-tuning gripper is connected to the fixed plate on both sides by a guide mechanism with a compression spring.

[0035] It should be noted that, in this application, during use, the guide rail mounting bracket 13 is fixed to the equipment where two round bars need to be coaxially spliced.

[0036] When coaxially splicing two round rods, place the two short wafer rods to be coaxially spliced ​​on the lower jaw 8 of the clamping device located at position A. Manually crank the handwheel 11, and the lower jaw 8 and upper jaw 9 begin to move synchronously towards the center. When the upper jaw 9 clamps the short wafer rod, stop cranking the handwheel 11 and crank the anti-rotation fixing knob 12 to fix the short wafer rod and prevent it from sliding down. Operate the clamping device at position B in the same sequence. Once in position, it ensures that the short wafer rods at positions A and B are coaxial, thus achieving coaxial splicing of the two round rods. After coaxial alignment, manually apply adhesive to begin the splicing process.

[0037] The device of this utility model simplifies the processing range and processing intensity of machined parts, making it easier to process and manufacture. The device of this utility model is easy to install and replace, which can greatly save workers' operation time and reduce their labor intensity. It can fundamentally solve the technical problems of existing cylinder connecting rod mechanism clamping devices being complex in structure, large in size, and difficult to install and maintain, significantly improving the efficiency of equipment use and reducing the labor intensity of workers.

[0038] The device of this utility model has a simple structure, reasonable design, small size, safe and reliable performance, convenient installation, easy replacement, and stable operation. It greatly meets the needs of equipment that can complete the coaxial splicing of two round bars in a limited space. It is easy to process, manufacture, assemble, transport, and install, and is easy to maintain. It can be widely used in various equipment mechanisms that require coaxial splicing of two round bars.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic features of this utility model.

[0040] Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, it is intended to encompass all variations falling within the meaning and scope of the equivalents of the claims within the present invention.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping device for coaxial splicing of two round bars, characterized in that, It includes two spaced-apart lower jaws and two spaced-apart upper jaws that correspond to and cooperate with the two lower jaws. Each lower jaw and its corresponding upper jaw are mounted on a manually driven counter-moving ball screw. A counter-moving track is arranged parallel to one side of the counter-moving ball screw in the radial direction. When the counter-moving ball screw rotates, the lower jaws and the upper jaws move in opposite directions under the guidance of the linear guide rail of the counter-moving track.

2. The coaxial splicing clamp device for two round bars according to claim 1, characterized in that, The upper end of the reverse-moving ball screw is connected to a manual drive assembly, which includes a worm gear reducer and a handwheel. The input shaft end of the worm gear reducer is connected to the handwheel.

3. The coaxial splicing clamp device for two round bars according to claim 2, characterized in that, The artificial drive component is connected to the reverse moving track via a keyway at the shaft end.

4. The coaxial splicing clamp device for two round bars according to claim 1, characterized in that, The reverse moving track is arranged on the guide rail mounting frame, and the upper and lower ends of the guide rail mounting frame have an upward mounting plate and a lower mounting plate, respectively.

5. The coaxial splicing clamp device for two round bars according to claim 4, characterized in that, The upper and lower mounting plates at the upper and lower ends of the guide rail mounting bracket are respectively connected to the screw fixing seat and the screw support seat. The screw fixing seat and the screw support seat are respectively connected to the upper and lower ends of the shaft of the counter-moving ball screw.

6. The coaxial splicing clamp device for two round bars according to claim 5, characterized in that, On the outer side of the lead screw support, there is a locking nut at the shaft end of the reciprocating ball screw.

7. The coaxial splicing clamp device for two round bars according to claim 1, characterized in that, The reverse co-moving track has two sliders, and the two sliders are respectively connected to a nut bracket connected to the reverse co-moving ball screw. The lower jaw and the upper jaw are each connected to a nut bracket.

8. The coaxial splicing clamp device for two round bars according to claim 7, characterized in that, The two nut brackets are connected to the two corresponding sliders via mating left-hand and right-hand nuts.

9. The coaxial splicing clamp device for two round bars according to claim 7, characterized in that, The lower jaw and the upper jaw are each connected to a nut bracket by bolting.

10. The coaxial splicing clamp device for two round bars according to claim 1, characterized in that, The upper gripper is an adjustable gripper.

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