Bicycle frame front triangular three-dimensional flexible clamp

Abstract

The utility model discloses a bicycle frame front triangular three-dimensional flexible clamp, which relates to the technical field, and comprises a bottom plate in a front-section clamp, a middle-section clamp, a rear-section upper clamp and a bearing assembly are respectively and fixedly arranged on the outer wall of one side of the bottom plate, and the front-section clamp comprises a first frame. And a first threaded rod is rotationally connected into the first frame. The front pipe is erected and placed at the upper end of the lower pressing piece, then the first rotating disc is rotated to drive the first threaded rod to rotate, the first threaded rod is used for driving the first upper pressing piece to descend to complete self-adaptive clamping and fixing of vertical pipes of different specifications, and then the rotating handle and the two-way threaded rod are rotated to clamp the vertical pipes of different specifications. Two-way threads are used for driving transverse clamps on the two sides to move oppositely, then a vertical pipe is inserted into a pipe barrel, then a fourth rotating disc and a fourth threaded rod are rotated, self-adaptive clamping and fixing of five-way pipes and vertical pipes of different specifications can be achieved, in this way, fixing of metal parts of different specifications can be achieved, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle processing equipment, in particular to a three-dimensional flexible clamp for the front triangle of a bicycle frame. Background Art

[0002] In the welding process of bicycle frames, especially for the front triangle of the frame, accurate and stable positioning is essential. Traditional welding fixtures are often fixed and inflexible, and cannot adapt to the diverse frame designs and sizes, which limits the welding quality and efficiency;

[0003] The bicycle frame mainly includes a front tube, a top tube, a down tube, a seat tube, and a bottom tube. The top tube is located between the down tube and the seat tube. The top of the down tube is connected to the front tube. The front tube is welded to the top tube and the down tube. The front tube, top tube, down tube and seat tube are combined to form a front triangle. The top tube and bottom tube are welded to the seat tube.

[0004] The existing patent (publication number: CN210115639U6) discloses that the five-way bridge is put on the positioning rod, and then the seat tube is abutted against the support plate, the piston rod of the clamping cylinder is controlled to extend, so that the rubber plug clamps the seat tube, and then the cross beam and the oblique beam are placed between the four limit rods and abutted against the limit rods, and then the head tube is placed on one end where the cross beam and the oblique beam abut, and then the piston rod of the adjusting cylinder is controlled to extend, so that the U-shaped fixing plate moves toward the direction of the head tube. When the U-shaped fixing plate approaches the head tube, the adjusting cylinder is stopped, and then the connecting plate is moved horizontally, so that the head tube is stuck in the U-shaped fixing plate, and the head tube is closely abutted against the cross beam and the oblique beam, and then the adjusting bolt is rotated to make the adjusting bolt closely abut against the support platform, so as to prevent the U-shaped fixing plate from moving during welding and improve the welding efficiency.

[0005] However, the above technical solution still has certain defects. First, after fixing each metal component, the equipment can only weld one side of each metal component, and welding the other side can only turn the components over as a whole, which is quite cumbersome. Moreover, turning over without completely welding is likely to damage the original welding strength, increasing the defective rate of the product. Secondly, there are many different sizes of bicycles, and fixing metal components of different specifications on a fixed-size workbench is quite limited, resulting in poor fixing effect. Therefore, a three-dimensional flexible clamp for the front triangle of a bicycle frame is proposed. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a three-dimensional flexible clamp for the front triangle of a bicycle frame to solve the technical problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-dimensional flexible clamp for the front triangle of a bicycle frame, comprising a bottom plate in a front section clamp, and an outer wall on one side of the bottom plate is slidably connected to a middle section clamp, a rear section upper clamp and a supporting assembly;

[0008] The front section clamp further comprises a first frame, a first threaded rod is rotatably connected inside the first frame, a first upper pressing piece is threadedly connected to the outer wall of the upper end of the first threaded rod, a lower pressing piece is sleeved on the outer wall of the lower end of the first threaded rod, a worm is meshedly connected to the top end of the first threaded rod, and a spring is contacted on the lower surface of the lower pressing piece;

[0009] The rear section upper clamp includes a support frame, the top end of one side of the support frame is rotatably connected to a bidirectional threaded rod, the other side of the top outer wall of the support frame is fixedly connected to a rectangular sliding rod, the outer walls on both sides of the rectangular sliding rod are slidably sleeved with a group of transverse clamps, the outer wall of one side of the base plate is fixedly connected to a third frame, and the top outer wall of the third frame is threadedly connected to a fourth threaded rod.

[0010] As an optimal technical solution for a three-dimensional flexible clamp of the front triangle of a bicycle frame of the utility model, a first lifting groove is opened inside the first frame, and the first threaded rod is rotatably connected to the inside of the first lifting groove, a worm gear is fixedly connected to the top outer wall of the first threaded rod, the worm gear is meshingly connected to the worm, one side outer wall of the worm passes through the outer wall of the first frame, and a first rotating disk is fixedly installed on the end axis, and the first upper pressure piece and the lower pressure piece are both slidably connected to the inner wall of the first lifting groove.

[0011] As an optimal technical solution for a three-dimensional flexible clamp of the front triangle of a bicycle frame of the utility model, one end of the bidirectional threaded rod is fixedly connected to a rotating handle on its axis, the cross-section of the rectangular sliding rod and each group of transverse clamps at the contact point is rectangular, and one end of the transverse clamp is threadedly connected to the outer wall of the bidirectional threaded rod, a tube is fixedly connected to the outer wall of one side of the third frame, a rubber buffer pad is fixedly provided on the inner wall of the tube, the top outer wall of the fourth threaded rod is fixedly connected to the fourth rotating disk, and the bottom outer wall of the fourth threaded rod is rotatably connected to the second upper pressure piece.

[0012] As an optimal technical solution for a three-dimensional flexible clamp of the front triangle of a bicycle frame of the utility model, the middle section clamp includes a second frame, a second lifting groove is opened inside the second frame, a second threaded rod is rotatably connected inside the second lifting groove, a second rotating disk is fixedly connected to the top end of the second threaded rod, a lifting block is threadedly connected to the outer wall of the bottom end of the second threaded rod, a connecting rod is fixedly connected to the outer wall of one side of the lifting block, the connecting rod is divided into two groups and respectively fixedly connected to the surface of the stabilizing movable block close to the second threaded rod, and a roller is rotatably connected to the outer wall of each connecting rod.

[0013] As an optimal technical solution for a three-dimensional flexible clamp of the front triangle of a bicycle frame of the utility model, the roller is attached to the surface of the second lifting groove, the other side of the lifting block is fixedly connected to a stabilizing slider, the stabilizing slider is slidably connected to the surface of the second frame, the left outer wall of the stabilizing slider is rotatably connected to a support rod, the upper surface of the support rod is fixedly connected to a lower arc-shaped clamping block, the top end of the second frame is threadedly connected to a third threaded rod, the top outer wall of the third threaded rod is fixedly connected to a third turntable, the lower end of the third threaded rod is rotatably connected to an upper arc-shaped clamping block, and the supporting surfaces of the upper arc-shaped clamping block and the lower arc-shaped clamping block are fixedly provided with rubber buffer pads.

[0014] As an optimal technical solution for a three-dimensional flexible clamp of the front triangle of a bicycle frame of the utility model, the supporting assembly includes a fourth frame, a swivel block is rotatably connected to an outer wall on one side of the fourth frame, a receiving block is fixedly connected to the upper surface of the swivel block, and a rubber buffer pad is fixedly provided on the receiving surface of the receiving block.

[0015] As a preferred technical solution of a three-dimensional flexible clamp for the front triangle of a bicycle frame of the utility model, the upper surface of the lower pressing piece, the lower surface of the first upper pressing piece and the mutually adjacent sides of the two sets of transverse clamps are fixedly connected with conical rubber pads. In summary, the utility model mainly has the following beneficial effects:

[0016] The utility model stands the front tube and places it on the upper end of the lower pressing piece, then rotates the first rotating disk to drive the first threaded rod to rotate, and utilizes the first threaded rod to drive the first upper pressing piece to descend to complete the adaptive clamping and fixing of the risers of different specifications, then rotates the rotating handle and the bidirectional threaded rod, utilizes the bidirectional thread to drive the lateral clamps on both sides to move toward each other, and then inserts the riser into the tube, and then rotates the fourth rotating disk and the fourth threaded rod, so as to realize the adaptive clamping and fixing of the five-way tubes and risers of different specifications. In summary, the fixation of metal parts of different specifications can be realized, and the application range is wide. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 It is a detailed diagram of the front section fixture of the utility model;

[0019] Figure 3 It is a detailed diagram of the middle section fixture of the utility model;

[0020] Figure 4 It is a detailed diagram of the upper clamp of the rear section of the utility model;

[0021] Figure 5 It is a detailed diagram of the supporting component of the utility model.

[0022] In the figure: 100, front section fixture; 200, middle section fixture; 300, rear section upper fixture; 400, supporting assembly;

[0023] 101, bottom plate; 110, first frame; 111, first lifting slot; 120, first threaded rod; 121, worm wheel; 130, worm; 131, first rotating disk; 140, first upper pressing member; 150, lower pressing member; 160, spring;

[0024] 210, second frame; 211, second lifting slot; 220, second threaded rod; 221, second rotating disk; 230, lifting block; 240, stabilizing moving block; 241, connecting rod; 242, roller; 250, third threaded rod; 251, third rotating disk; 252, upper arc-shaped clamping block; 260, stabilizing slider; 270, support rod; 280, lower arc-shaped clamping block;

[0025] 310, support frame; 320, bidirectional threaded rod; 321, rotating handle; 330, rectangular slide rod; 340, transverse clamp; 350, third frame; 351, tube; 360, fourth threaded rod; 361, fourth rotating disk; 362, second upper pressing piece;

[0026] 410, fourth frame; 420, transfer block; 430, receiving block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A three-dimensional flexible fixture for the front triangle of a bicycle frame, such as Figure 1-5 As shown, it includes a bottom plate 101 in a front section fixture 100, and an outer wall on one side of the bottom plate 101 is slidably connected with a middle section fixture 200, a rear section upper fixture 300 and a supporting assembly 400;

[0030] The front section clamp 100 further comprises a first frame 110, the first frame 110 is internally rotatably connected with a first threaded rod 120, the upper end outer wall of the first threaded rod 120 is threadedly connected with a first upper pressing piece 140, the lower end outer wall of the first threaded rod 120 is sleeved with a lower pressing piece 150, the top end of the first threaded rod 120 is meshedly connected with a worm 130, and the lower surface of the lower pressing piece 150 is contacted with a spring 160;

[0031] The rear section upper clamp 300 includes a support frame 310, and the top end of one side of the support frame 310 is rotatably connected to a bidirectional threaded rod 320, and the other side of the outer wall of the top end of the support frame 310 is fixedly connected to a rectangular slide bar 330, and the outer walls on both sides of the rectangular slide bar 330 are slidably sleeved with a group of transverse clamps 340, and the outer wall of one side of the base plate 101 is fixedly connected to a third frame 350, and the top outer wall of the third frame 350 is threadedly connected to a fourth threaded rod 360.

[0032] First, the front tube is erected and placed on the upper end of the lower pressure piece 150, and then the first rotating disk 131 is rotated to drive the first threaded rod 120 to rotate, and the first threaded rod 120 is used to drive the first upper pressure piece 140 to descend to complete the adaptive clamping and fixing of the seat tubes of different specifications, and then the rotating handle 321 and the two-way threaded rod 320 are rotated, and the two-way threads are used to drive the lateral clamps 340 on both sides to move toward each other, and then the seat tube is inserted into the tube 351, and then the fourth rotating disk 361 and the fourth threaded rod 360 are rotated, so as to realize the adaptive clamping and fixing of the five-way tubes and seat tubes of different specifications. In summary, the fixation of metal parts of different specifications can be realized, and the application range is wide.

[0033] Please refer to Figure 1 , 2 A first lifting groove 111 is opened inside the first frame 110, and the first threaded rod 120 is rotatably connected to the inside of the first lifting groove 111. A worm gear 121 is fixedly connected to the outer wall of the top end of the first threaded rod 120. The worm gear 121 is meshingly connected to the worm 130. An outer wall of one side of the worm 130 passes through the outer wall of the first frame 110, and a first rotating disk 131 is fixedly installed on the end axis. The first upper pressing piece 140 and the lower pressing piece 150 are both slidably connected to the inner wall of the first lifting groove 111.

[0034] The first upper pressing member 140 and the lower pressing member 150 are both slidably connected to the inner wall of the first lifting groove 111 to limit and stabilize the first upper pressing member 140 and the lower pressing member 150 to prevent them from rotating and vibrating, thereby ensuring the fixing effect.

[0035] Please refer to Figure 1 , 4 One end of the bidirectional threaded rod 320 is fixedly connected to a rotating handle 321 at its axis, the cross-section of the rectangular slide rod 330 and each set of transverse clamps 340 at their contact points is rectangular, and one end of the transverse clamp 340 is threadedly connected to the outer wall of the bidirectional threaded rod 320, a tube 351 is fixedly connected to an outer wall of one side of the third frame 350, a rubber buffer pad is fixedly provided on the inner wall of the tube 351, a fourth rotating disk 361 is fixedly connected to the outer wall of the top end of the fourth threaded rod 360, and a second upper pressure piece 362 is rotatably connected to the outer wall of the bottom end of the fourth threaded rod 360.

[0036] The cross-section of the rectangular slide bar 330 and each set of transverse clamps 340 at the contact point is rectangular, which can limit the vibration of the transverse clamps 340 and enhance stability. One end of the transverse clamp 340 is threadedly connected to the outer wall of the bidirectional threaded rod 320, and the bidirectional threaded rod 320 can be used to drive the transverse clamp 340 to move.

[0037] Please refer to Figure 3 The middle section clamp 200 includes a second frame 210, a second lifting slot 211 is opened inside the second frame 210, a second threaded rod 220 is rotatably connected inside the second lifting slot 211, a second rotating disk 221 is fixedly connected to the top of the second threaded rod 220, a lifting block 230 is threadedly connected to the outer wall of the bottom end of the second threaded rod 220, a connecting rod 241 is fixedly connected to the outer wall of one side of the lifting block 230, the connecting rod 241 is divided into two groups and respectively fixedly connected to the surface of the stabilizing movable block 240 close to the second threaded rod 220, and the outer wall of each connecting rod 241 is rotatably connected to a roller 242.

[0038] The connecting rods 241 are divided into two groups and are respectively fixedly connected to the surface of the stabilizing block 240 close to the second threaded rod 220, and the outer wall of each connecting rod 241 is rotatably connected to a roller 242, which can be used to enhance the structural stability by using the roller 242 and the stabilizing block 240.

[0039] Please refer to Figure 1 , 3 The roller 242 is attached to the surface of the second lifting groove 211, and the other side of the lifting block 230 is fixedly connected to a stabilizing slider 260, which is slidably connected to the surface of the second frame 210. The left outer wall of the stabilizing slider 260 is rotatably connected to a support rod 270, and the upper surface of the support rod 270 is fixedly connected to a lower arc-shaped clamping block 280. The top of the second frame 210 is threadedly connected to a third threaded rod 250, and the top outer wall of the third threaded rod 250 is fixedly connected to a third turntable 251, and the lower end of the third threaded rod 250 is rotatably connected to an upper arc-shaped clamping block 252, and the supporting surfaces of the upper arc-shaped clamping block 252 and the lower arc-shaped clamping block 280 are fixedly provided with rubber buffer pads.

[0040] The other side of the lifting block 230 is fixedly connected with a stabilizing slider 260 to ensure that the support rod 270 is more stable during the lifting operation. The supporting surfaces of the upper arc clamping block 252 and the lower arc clamping block 280 are fixedly provided with rubber buffer pads to buffer the impact force of metal parts, prevent scratches and damage to the surface of the parts, and ensure product quality.

[0041] Please refer to Figure 5 The supporting assembly 400 includes a fourth frame 410, a rotating block 420 is rotatably connected to an outer wall of one side of the fourth frame 410, a receiving block 430 is fixedly connected to the upper surface of the rotating block 420, and a rubber buffer pad is fixedly provided on the receiving surface of the receiving block 430.

[0042] The receiving surface of the receiving block 430 is fixedly provided with a rubber buffer pad to buffer the impact force of the metal component, prevent scratches and damage to the surface of the component, and ensure product quality.

[0043] Please refer to Figure 1 , 2 4. The upper surface of the lower pressing member 150, the lower surface of the first upper pressing member 140, and the mutually adjacent surfaces of the two sets of transverse clamps 340 are fixedly connected with conical rubber pads.

[0044] The upper surface of the lower pressure piece 150, the lower surface of the first upper pressure piece 140, and the mutually adjacent sides of the two sets of transverse clamps 340 are fixedly connected with conical rubber pads, which can play a role in self-centering fixation of metal parts of different specifications, so that the metal parts always remain perpendicular and horizontal to the ground, ensuring accurate welding.

[0045] First, the front tube is erected and placed on the upper end of the lower pressing member 150, and then the first rotating disk 131 is rotated to drive the first threaded rod 120 to rotate, and the first threaded rod 120 is used to drive the first upper pressing member 140 to descend to complete the adaptive clamping and fixing of the risers of different specifications, and then the rotating handle 321 and the bidirectional threaded rod 320 are rotated, and the bidirectional threads are used to drive the lateral clamps 340 on both sides to move toward each other, and then the riser is inserted into the tube 351, and then the fourth rotating disk 361 and the fourth threaded rod 360 are rotated, so that the adaptive clamping and fixing of the five-way tubes and risers of different specifications can be achieved. In summary, the fixing of metal parts of different specifications can be achieved, and the application range is wide;

[0046] Secondly, rotate the second rotating disk 221 and the second threaded rod 220 to drive the lifting block 230 and the lower arc clamping block 280 to rise, and then rotate the third rotating disk 251 and the third threaded rod 250 to drive the lower arc clamping block 280 to descend, so as to fix the lower tube up and down, and then put the rear half of the lower tube into the receiving block 430 and align it to complete the support of the upper and lower tubes. At this time, the parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A three-dimensional flexible clamp for the front triangle of a bicycle frame, comprising a bottom plate (101) in a front section clamp (100), characterized in that: The outer wall of one side of the bottom plate (101) is slidably connected to a middle section clamp (200), a rear section upper clamp (300) and a supporting assembly (400); The front section clamp (100) further comprises a first frame (110), the first frame (110) is internally rotatably connected with a first threaded rod (120), the upper end outer wall of the first threaded rod (120) is threadedly connected with a first upper pressing piece (140), the lower end outer wall of the first threaded rod (120) is sleeved with a lower pressing piece (150), the top end of the first threaded rod (120) is meshingly connected with a worm (130), and the lower surface of the lower pressing piece (150) is contacted with a spring (160); The rear section upper clamp (300) comprises a support frame (310), the top end of one side of the support frame (310) is rotatably connected to a bidirectional threaded rod (320), the other side of the top outer wall of the support frame (310) is fixedly connected to a rectangular sliding rod (330), both side outer walls of the rectangular sliding rod (330) are slidably sleeved with a group of transverse clamps (340), the outer wall of one side of the base plate (101) is fixedly connected to a third frame (350), and the top outer wall of the third frame (350) is threadedly connected to a fourth threaded rod (360).

2. The three-dimensional flexible fixture for the front triangle of a bicycle frame according to claim 1, characterized in that: A first lifting groove (111) is provided inside the first frame (110), and the first threaded rod (120) is rotatably connected to the inside of the first lifting groove (111); a worm wheel (121) is fixedly connected to the top outer wall of the first threaded rod (120); the worm wheel (121) is meshingly connected to a worm (130); an outer wall on one side of the worm (130) passes through the outer wall of the first frame (110), and a first rotating disk (131) is fixedly installed on the end axis; the first upper pressing piece (140) and the lower pressing piece (150) are both slidably connected to the inner wall of the first lifting groove (111).

3. The front triangular three-dimensional flexible clamp of a bicycle frame according to claim 1, characterized in that: One end of the bidirectional threaded rod (320) is fixedly connected to a rotating handle (321) at its axis, the cross-section of the rectangular slide rod (330) and each group of transverse clamps (340) at the contact point is rectangular, and one end of the transverse clamp (340) is threadedly connected to the outer wall of the bidirectional threaded rod (320), one side outer wall of the third frame (350) is fixedly connected to a tube (351), the inner wall of the tube (351) is fixedly provided with a rubber buffer pad, the top outer wall of the fourth threaded rod (360) is fixedly connected to a fourth rotating disk (361), and the bottom outer wall of the fourth threaded rod (360) is rotatably connected to a second upper pressure piece (362).

4. The three-dimensional flexible fixture for the front triangle of a bicycle frame according to claim 1, characterized in that: The middle section clamp (200) comprises a second frame (210), a second lifting groove (211) is provided inside the second frame (210), a second threaded rod (220) is rotatably connected inside the second lifting groove (211), a second rotating disk (221) is fixedly connected to the top end of the second threaded rod (220), a lifting block (230) is threadedly connected to the outer wall of the bottom end of the second threaded rod (220), a connecting rod (241) is fixedly connected to the outer wall of one side of the lifting block (230), the connecting rod (241) is divided into two groups, which are respectively fixedly connected to the surface of the stabilizing block (240) close to the second threaded rod (220), and the outer wall of each connecting rod (241) is rotatably connected to a roller (242).

5. The front triangular three-dimensional flexible fixture of a bicycle frame according to claim 4, characterized in that: The roller (242) is attached to the surface of the second lifting groove (211); the other side of the lifting block (230) is fixedly connected with a stabilizing slider (260); the stabilizing slider (260) is slidably connected to the surface of the second frame (210); the left outer wall of the stabilizing slider (260) is rotatably connected with a support rod (270); the upper surface of the support rod (270) is fixedly connected with a lower arc-shaped clamping block (280); the top end of the second frame (210) is threadedly connected with a third threaded rod (250); the top outer wall of the third threaded rod (250) is fixedly connected with a third rotating disk (251); the lower end of the third threaded rod (250) is rotatably connected with an upper arc-shaped clamping block (252); the supporting surfaces of the upper arc-shaped clamping block (252) and the lower arc-shaped clamping block (280) are both fixedly provided with rubber buffer pads.

6. The three-dimensional flexible fixture for the front triangle of a bicycle frame according to claim 1, characterized in that: The supporting assembly (400) comprises a fourth frame (410), one side outer wall of the fourth frame (410) is rotatably connected to a rotating block (420), the upper surface of the rotating block (420) is fixedly connected to a receiving block (430), and a receiving surface of the receiving block (430) is fixedly provided with a rubber buffer pad.

7. The three-dimensional flexible fixture for the front triangle of a bicycle frame according to claim 1, characterized in that: The upper surface of the lower pressing piece (150), the lower surface of the first upper pressing piece (140), and the mutually adjacent surfaces of the two sets of transverse clamps (340) are all fixedly connected with conical rubber pads.

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