Fixing tool for welding bicycle frame

Abstract

The utility model discloses a fixing tool for welding a bicycle frame, which relates to the field of positioning tools, and comprises a frame and a rotating frame device, the frame is provided with vertically symmetrical rotating flange shaft devices, one end of each rotating flange shaft device is connected with an arc-shaped connecting plate, the arc-shaped connecting plate is connected with a telescopic cylinder, and the telescopic cylinder is connected with the rotating frame device. The rotating frame device comprises a rotating frame, an upper frame, a lower frame and a side frame, the rotating frame is vertically and rotatably connected between the two rotating flange shaft devices, a first positioning column device and a second positioning column device are slidably connected to the rotating frame, a third positioning device is slidably connected to the upper frame, and a second positioning column device is slidably connected to the lower frame. According to the device, a vehicle frame is positioned and fixed in the rotating frame device, the telescopic air cylinder drives the rotating frame device to swing on the rotating flange shaft device through the arc-shaped connecting plate, the welding angle can be flexibly adjusted, multiple times of clamping and positioning are not needed, and the welding efficiency is improved. And the welding efficiency of the frame is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of positioning tooling, in particular to a fixing tooling for welding a bicycle frame. Background Art

[0002] Bicycles are convenient, fast, energy-saving and environmentally friendly, and have always been a popular means of transportation. As people's quality of life continues to improve, bicycles are also increasingly used as fitness equipment. The bicycle frame is the main component and needs to be welded during the production process. Figure 3 This type of common bicycle frame shown includes a first part and a second part. The first part is provided with a first frame tube, a second frame tube and a third frame tube, and the second part is provided with a fourth frame tube. Positioning is more difficult, and workers need to constantly adjust the welding angle of the bicycle during welding.

[0003] Chinese patent application number CN202320750092.X discloses an electric bicycle frame fixing assembly and welding table. The assembly comprises a processing platform with a horizontally extending table top, the table top's length and width dimensions being greater than the maximum length and width dimensions of the electric bicycle frame when in a sideways position; a head tube fixing mount disposed on the table top and connected to the head tube of the electric bicycle frame when in a sideways position; a battery duct fixing mount disposed on the table top and connected to the battery duct of the electric bicycle frame when in a sideways position; and a tail tube fixing mount disposed on the table top and connected to the tail tube of the electric bicycle frame when in a sideways position. The head tube fixing mount, battery duct fixing mount, and tail tube fixing mount respectively secure the front, middle, and rear portions of the electric bicycle frame with precision and reliability. However, the aforementioned device cannot adjust the frame's posture; the frame can only be fixed in a sideways position, making it difficult to adjust the welding angle. Only single-side welding can be performed, requiring disassembly and repositioning, significantly impacting welding efficiency. Utility Model Content

[0004] In order to solve the problems raised by the above background technology, the utility model provides a fixed tool for welding a bicycle frame, which can flexibly adjust the welding angle, does not require multiple clamping and positioning, and greatly improves the welding efficiency of the frame.

[0005] In order to achieve the above purpose, the specific technical solutions of the present utility model are as follows:

[0006] The cam is connected to the frame by a plurality of movable parts, and the movable parts are connected to the frame by a plurality of movable parts.

[0007] As a further configuration of the above scheme, the first positioning column device includes a first mounting sleeve, a first horizontally arranged spring column is connected to the inner side of the first mounting sleeve, and the outer end of the first spring column is connected to the first positioning column, the second positioning column device includes a second mounting sleeve, a second horizontally arranged second spring column is connected to the inner side of the second mounting sleeve, and the outer end of the second spring column is connected to the second positioning column, the first mounting sleeve and the second mounting sleeve are slidably installed on the rotating frame, and the first mounting sleeve and the second mounting sleeve are provided with a locking device.

[0008] As a further configuration of the above solution, a horizontally arranged cylinder device is provided at the inner center of the side frame, and the cylinder device is located between the fourth positioning device and the side frame.

[0009] As a further arrangement of the above scheme, the third positioning device includes a third mounting sleeve, which is provided with a locking device. The third mounting sleeve is slidably connected to the upper frame, and a U-shaped positioning plate is fixedly connected to the inner side of the third mounting sleeve. A mounting plate is provided in the middle of the U-shaped positioning plate, and electric push rod devices are symmetrically provided on both sides of the mounting plate.

[0010] As a further setting of the above scheme, the fourth positioning device includes a symmetrically arranged fourth mounting sleeve, vertical plates are fixedly connected between the fourth mounting sleeves, positioning sliders are slidably connected on the vertical plates, and limiting grooves are provided on the positioning sliders. Support spring columns are provided on the inner sides of the vertical plates on both sides of the positioning sliders, and support rollers are rotatably connected to the upper ends of the support spring columns.

[0011] As a further configuration of the above solution, a mounting bracket is provided on the outer side of the vertical plate, a screw device is rotatably connected inside the mounting bracket, and the screw device is transmission-connected to the positioning slider.

[0012] The utility model has the following beneficial effects:

[0013] The first positioning column device and the second positioning column device cooperate with the fourth positioning device to position and fix the first part of the frame. The third positioning device clamps the second part of the frame to position and splice the first and second parts of the frame together. The positions of the first positioning column device, the second positioning column device, the third positioning device and the fourth positioning device can be flexibly adjusted to position and fix frames of different specifications, thereby improving the applicability of the device.

[0014] The telescopic cylinder drives the rotating frame device to swing on the rotating flange shaft device through the arc-shaped connecting plate to adjust the frame welding angle. It can weld from both sides of the frame, avoiding multiple clamping and positioning, and greatly improving the frame welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the appearance of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 This is the frame intention of the utility model;

[0018] Figure 4 It is a schematic diagram of the rotating frame device of the utility model;

[0019] Figure 5 This is a schematic diagram of the third positioning device of the present utility model;

[0020] Figure 6 This is a schematic diagram of the fourth positioning device of the present utility model.

[0021] 1. Frame; 2. Rotating flange shaft assembly; 3. Telescopic cylinder; 4. Arc-shaped connecting plate; 5. Rotating frame assembly; 6. First positioning column assembly; 7. Second positioning column assembly; 8. Third positioning assembly; 9. Fourth positioning assembly; 10. Vehicle frame; 501. Rotating frame; 502. Upper frame; 503. Lower frame; 504. Side frame; 505. Cylinder assembly; 601. First mounting sleeve; 6011. Locking device; 602. First spring column; 603. First positioning column; 701. Second mounting sleeve; 702. Second spring column; 70 3. Second positioning column; 801. Third mounting sleeve; 802. U-shaped positioning plate; 803. Mounting plate; 804. Electric push rod device; 901. Fourth mounting sleeve; 902. Vertical plate; 903. Support spring column; 9031. Support roller; 904. Positioning slider; 9041. Limiting groove; 905. Mounting bracket; 906. Screw device; 1001. First frame tube; 1002. Second frame tube; 1003. Third frame tube; 1004. Fourth frame tube; 1005. First part; 1006. Second part. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1-6 , and describes the application in detail with reference to embodiments.

[0024] like Figure 1 、 Figure 2 As shown, a fixed tool for welding a bicycle frame includes a frame 1 and a rotating frame device 5. The frame 1 is provided with a rotating flange shaft device 2 that is symmetrical in both directions. One end of the rotating flange shaft device 2 is connected to an arc-shaped connecting plate 4, which is connected to a telescopic cylinder 3. The rotating frame device 5 includes a rotating frame 501, an upper frame 502, a lower frame 503 and a side frame 504. The rotating frame 501, the upper frame 502, the lower frame 503 and the side frame 504 form a rectangular frame. The rotating frame 501 is vertically connected to the two rotating flange shaft devices 2 and rotates. The first positioning column device 6 and the second positioning column device 7 are slidably connected to the rotating frame 501, the third positioning device 8 is slidably connected to the upper frame 502, and a vertically arranged fourth positioning device 9 is slidably connected between the upper frame 502 and the lower frame 503. The first positioning column device 6, the second positioning column device 7, the third positioning device 8 and the fourth positioning device 9 cooperate with each other to position and fix the frame 10 in the rotating frame device 5. The telescopic cylinder 3 drives the rotating frame device 5 to swing on the rotating flange shaft device 2 through the arc-shaped connecting plate 4, so as to adjust the welding angle of the frame 10.

[0025] like Figure 4 As shown, the first positioning column device 6 includes a first mounting sleeve 601, the inner side of which is connected to a horizontally arranged first spring column 602, and the outer end of the first spring column 602 is connected to a first positioning column 603. The second positioning column device 7 includes a second mounting sleeve 701, the inner side of which is connected to a horizontally arranged second spring column 702, and the outer end of the second spring column 702 is connected to a second positioning column 703. The first mounting sleeve 601 and the second mounting sleeve 701 are slidably mounted on the rotating frame 501, and the first mounting sleeve 601 and the second mounting sleeve 701 are provided with a locking device 6011. A horizontally arranged cylinder device 505 is provided at the inner center of the side frame 504, and the cylinder device 505 is located between the fourth positioning device 9 and the side frame 504.

[0026] like Figure 5 As shown, the third positioning device 8 includes a third mounting sleeve 801, a locking device 6011 is provided on the third mounting sleeve 801, the third mounting sleeve 801 is slidably connected to the upper frame 502, a U-shaped positioning plate 802 is fixedly connected to the inner side of the third mounting sleeve 801, a mounting plate 803 is provided in the middle of the U-shaped positioning plate 802, and electric push rod devices 804 are symmetrically provided on both sides of the mounting plate 803.

[0027] like Figure 6 As shown, the fourth positioning device 9 includes a symmetrically arranged fourth mounting sleeve 901, and vertical plates 902 are fixedly connected between the fourth mounting sleeves 901. A positioning slider 904 is slidably connected to the vertical plate 902. A limiting groove 9041 is provided on the positioning slider 904. Support spring columns 903 are provided on the inner sides of the vertical plates 902 on both sides of the positioning slider 904. The upper ends of the support spring columns 903 are rotatably connected to support rollers 9031. A mounting bracket 905 is provided on the outer side of the vertical plate 902, and a screw device 906 is rotatably connected inside the mounting bracket 905. The screw device 906 is transmission-connected to the positioning slider 904.

[0028] The working process of the present invention is as follows: according to the specifications of the vehicle frame 10, first, the positions of the first positioning column 603 and the second positioning column 703 are adjusted by the first mounting sleeve 601 and the second mounting sleeve 701, and the first frame tube 1001 and the second frame tube 1002 of the vehicle frame 10 are sleeved on the first positioning column 603 and the second positioning column 703, the screw device 906 adjusts the position of the positioning slider 904, the cylinder device 505 extends to push the vertical plate 902 to move horizontally, and the limiting groove 9041 on the positioning slider 904 contacts the third frame tube 1003, and at the same time cooperates with the support spring column 903 and the support roller 9031 to push the first part 1005 of the vehicle frame 10 to move horizontally, and the thrust of the first spring column 602 and the second spring column 702 is added. The first part 1005 of the frame 10 is positioned and fixed; the fourth frame tube 1004 of the second part 1006 of the frame 10 is sleeved in the U-shaped positioning plate 802, and the fourth frame tube 1004 is located on both sides of the mounting plate 803. The electric push rod device 804 is extended to cooperate with the mounting plate 803 to fix the second part 1006 of the frame 10, and the position of the third mounting sleeve 801 is adjusted to position and splice the first part 1005 and the second part 1006 of the frame 10 together to complete the fixation of the entire frame 10; when the welding angle needs to be adjusted, the telescopic cylinder 3 drives the rotating frame device 5 to swing on the rotating flange shaft device 2 through the arc-shaped connecting plate 4 to adjust the welding angle of the frame 10, and welding can be performed from both sides of the frame 10.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention.

[0030] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fixture for welding a bicycle frame, comprising a frame and a rotating frame device, wherein the frame is provided with a vertically symmetrical rotating flange shaft device, one end of the rotating flange shaft device is connected to an arc-shaped connecting plate, and the arc-shaped connecting plate is connected to a telescopic cylinder, characterized in that: The rotating frame device includes a rotating frame, an upper frame, a lower frame and a side frame. The rotating frame, the upper frame, the lower frame and the side frame form a rectangular frame. The rotating frame is vertically rotatably connected between the two rotating flange shaft devices. The first positioning column device and the second positioning column device are slidably connected to the rotating frame. The third positioning device is slidably connected to the upper frame. A vertically arranged fourth positioning device is slidably connected between the upper frame and the lower frame.

2. The fixing fixture for bicycle frame welding according to claim 1, characterized in that: The first positioning column device includes a first mounting sleeve, a first spring column arranged horizontally is connected to the inner side of the first mounting sleeve, and the outer end of the first spring column is connected to the first positioning column. The second positioning column device includes a second mounting sleeve, a second spring column arranged horizontally is connected to the inner side of the second mounting sleeve, and the outer end of the second spring column is connected to the second positioning column. The first mounting sleeve and the second mounting sleeve are slidably installed on the rotating frame, and locking devices are provided on the first mounting sleeve and the second mounting sleeve.

3. The fixing fixture for bicycle frame welding according to claim 1, characterized in that: A horizontally arranged cylinder device is provided at the inner center of the side frame, and the cylinder device is located between the fourth positioning device and the side frame.

4. The fixing fixture for welding a bicycle frame according to claim 1, characterized in that: The third positioning device includes a third mounting sleeve, which is provided with a locking device. The third mounting sleeve is slidably connected to the upper frame. A U-shaped positioning plate is fixedly connected to the inner side of the third mounting sleeve. A mounting plate is provided in the middle of the U-shaped positioning plate. Electric push rod devices are symmetrically provided on both sides of the mounting plate.

5. The fixing fixture for bicycle frame welding according to claim 1, characterized in that: The fourth positioning device includes a symmetrically arranged fourth mounting sleeve, a vertical plate fixedly connected between the fourth mounting sleeves, a positioning slider slidably connected to the vertical plate, a limiting groove is provided on the positioning slider, and a support spring column is provided on the inner side of the vertical plate on both sides of the positioning slider, and the upper end of the support spring column is rotatably connected to a support roller.

6. The fixing fixture for bicycle frame welding according to claim 5, characterized in that: A mounting bracket is provided on the outside of the vertical plate, a screw device is rotatably connected inside the mounting bracket, and the screw device is transmission-connected to the positioning slider.

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