A frame quick-change lap welding die

Abstract

The present invention belongs to the field of welding devices, and discloses a frame quick-change lap welding die, which is used to solve the problem of low efficiency of existing frame welding. It includes a vertically arranged turntable, on the side wall of the turntable are fixed template 1 and template 2, the top of template 2 is provided with a storage slot, the side wall of template 1 is provided with a notch, and above the notch are two clamping plates that are slidably connected to the top of template 1, frame 1 is supported between the two clamping plates, the bottom of frame 1 is rotatably connected to the storage slot, and frame 2 is connected to the outer wall of frame 1 through a connecting piece. The present invention has a simple structure and is easy to use. The design of the clamping plate and the limit block 1 realizes the rapid fixation of frame 1, and the fixation is firm. The design of the notch realizes the rapid removal of frame 1, and the removal is convenient. Frame 1 is easy to rotate, and the turntable can drive frame 1 and frame 2 to rotate. There is no dead angle in welding, and the welding is efficient, which increases the service life of the frame.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to a frame quick-change lap welding die. Background Art

[0002] The frame is the skeleton of a bicycle. The quality of the frame determines the load-bearing capacity, stability, safety and other properties of a bicycle. In the existing frame, frame 1 and frame 2 are usually connected by connectors, and frame 1 and frame 2 are fixed on two molds. After welding one side, the frame is removed from the mold, and then the other side of frame 1 and frame 2 is welded. The steps are cumbersome and the welding efficiency is low. Summary of the invention

[0003] The purpose of the invention is to solve the problem of low frame welding efficiency in the prior art and to propose a frame quick-change lap welding die.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A frame quick-change lap welding die comprises a vertically arranged turntable, on the side walls of which template one and template two are fixed, a storage groove is provided on the top of template two, a notch is provided on the side wall of template one, two clamping plates are provided above the notch and are both slidably connected to the top of template one, frame one is held between the two clamping plates, the bottom of frame one is rotatably connected to the storage groove, and frame two is connected to the outer wall of frame one via a connecting piece.

[0006] Preferably, two supporting legs are provided below the turntable, a mounting plate is plugged into the top of the two supporting legs, a driving motor for driving the turntable is mounted on the mounting plate, and the turntable is rotatably connected to the side wall of the mounting plate.

[0007] Preferably, the top of the template 1 away from the notch is fixed to a limiting block 1 by screws, the vertical section of the limiting block 1 is a door-shaped structure, the two clamps are slidably connected to the bottom of the limiting block 1, and the two clamps are connected by two springs.

[0008] Preferably, the storage grooves are arranged in multiple layers of concentric circles, and the diameter of the top opening of the storage groove decreases gradually toward the diameter of the bottom inner wall thereof.

[0009] Preferably, a vertically arranged loading plate is fixed to the bottom of one end of the template 2 away from the turntable, a horizontally arranged limiting block 2 is fixed to the side wall of the loading plate, a movable plate passes through the bottom of the limiting block 2, the top of the movable plate is rotatably connected to a support plate via a rotating ball, and the frame 2 is overlapped on the top of the support plate.

[0010] Preferably, a fastening handle is threadedly connected to the second limit block, a rubber pad is glued to one end of the fastening handle, and the rubber pad is pressed between the movable plate and the fastening handle.

[0011] The beneficial effects of the present invention are:

[0012] 1. The device has a simple structure and is easy to use. The design of the splint and the limit block 1 realizes the fast and firm fixation of the frame 1. The design of the notch realizes the fast and convenient removal of the frame 1. The frame 1 is easy to rotate, and the turntable can drive the frame 1 and the frame 2 to rotate, and there is no dead angle in welding;

[0013] 2. The design of the movable plate and the support plate further improves the stability of the frame. It is not easy to deviate and fall during welding, which improves the welding accuracy of the frame and increases the service life of the frame. The multi-layer storage slot is suitable for welding frames of different diameters, and the device has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a frame quick-change lap welding die proposed by the present invention;

[0015] Figure 2 The present invention is a schematic diagram of the positional relationship between a frame 2 and a support plate in a frame quick-change lap welding die proposed by the present invention.

[0016] In the figure: 1. turntable; 2. template 2; 21. storage slot; 22. loading plate; 23. limit block 2; 24. movable plate; 25. fastening handle; 26. support plate; 3. limit block 1; 4. template 1; 5. clamping plate; 6. frame 1; 7. connecting piece; 8. frame 2; 9. mounting plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0018] Embodiment 1:

[0019] Reference Figure 1-2A frame quick-change lap welding die comprises a vertically arranged turntable 1, a template 1 4 and a template 2 2 are fixed on the side wall of the turntable 1, a storage groove 21 is arranged on the top of the template 2 2, a notch is arranged on the side wall of the template 1 4, two clamping plates 5 are arranged above the notch and are both slidably connected to the top of the template 1 4, a frame 1 6 is held between the two clamping plates 5, the bottom of the frame 1 6 is rotatably connected to the storage groove 21, the outer wall of the frame 1 6 is connected to the frame 2 8 through a connecting piece 7, two supporting feet are arranged below the turntable 1, the tops of the two supporting feet are plugged with a mounting plate 9, and a driving turntable 1 is installed on the mounting plate 9 The driving motor and the turntable 1 are rotatably connected to the side wall of the mounting plate 9. The top of the template 4 away from the notch is fixed to the limiting block 3 by screws. The vertical section of the limiting block 3 is a door-shaped structure. The two clamping plates 5 are slidably connected to the bottom of the limiting block 3. The two clamping plates 5 are connected by two springs, and the clamping plates 5 can also be fixed by two fasteners. The storage groove 21 is arranged in multiple layers of concentric circles. The diameter of the top opening of the storage groove 21 decreases gradually toward the diameter of the inner wall of the bottom, which is suitable for welding frames of different diameters. The side walls of the two clamping plates 5 close to each other are provided with arc-shaped limiting notches.

[0020] Working principle: put the connecting piece 7 on the frame 1 6, insert the bottom of the frame 1 6 into the storage groove 21, fix the frame 1 6 through two clamping plates 5, insert the frame 2 8 into the connecting piece 7, rotate the turntable 1, and weld the connecting piece 7 and the frame 1 6, and the frame 2 8 and the connecting piece 7 with a welding gun, loosen the clamping plate 5 and rotate the frame 1 6, unscrew the side of the frame 6 close to the turntable 1, and continue welding.

[0021] Embodiment 2:

[0022] Reference Figure 1-2 , a frame quick-change lap welding mold, the same as the first embodiment, the difference between this embodiment and the first embodiment is that a vertically arranged loading plate 22 is fixed to the bottom of the end of the template 2 away from the turntable 1, and a horizontally arranged limit block 23 is fixed to the side wall of the loading plate 22. A movable plate 24 is penetrated through the bottom of the limit block 23, and the top of the movable plate 24 is rotatably connected to a support plate 26 through a rotating ball. The frame 8 is overlapped on the top of the support plate 26, and a fastening handle 25 is threadedly connected to the limit block 23. A rubber pad is glued to one end of the fastening handle 25, and the rubber pad is pressed between the movable plate 24 and the fastening handle 25. It can be obviously known that fasteners for fixing the frame 8 can be set on the pad 26 as needed, which will not be repeated here.

[0023] Working principle: Move the movable plate 24 vertically upward, and the frame 28 is overlapped on the top of the support plate 26. The movable plate 24 is fixed by tightening the handle 25, which plays a good supporting and limiting role on the frame 28 and improves the accuracy of welding.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A frame quick-change lap welding die, comprising a vertically arranged turntable (1), characterized in that: The side wall of the turntable (1) is fixed with a template 1 (4) and a template 2 (2), the top of the template 2 (2) is provided with a storage groove (21), the side wall of the template 1 (4) is provided with a notch, and above the notch are two clamping plates (5) which are slidably connected to the top of the template 1 (4), a frame 1 (6) is supported between the two clamping plates (5), the bottom of the frame 1 (6) is rotatably connected to the storage groove (21), and the outer wall of the frame 1 (6) is connected to the frame 2 (8) via a connecting piece (7); A vertically arranged loading plate (22) is fixed at the bottom of one end of the template (2) away from the turntable (1), a horizontally arranged limiting block (23) is fixed to the side wall of the loading plate (22), a movable plate (24) penetrates the bottom of the limiting block (23), the top of the movable plate (24) is rotatably connected to a supporting plate (26) via a rotating ball, and the frame (8) is overlapped on the top of the supporting plate (26); The second limit block (23) is threadedly connected with a fastening handle (25), one end of the fastening handle (25) is glued with a rubber pad, and the rubber pad is pressed between the movable plate (24) and the fastening handle (25).

2. The frame quick-change lap welding die according to claim 1, characterized in that: Two supporting feet are arranged below the turntable (1), and a mounting plate (9) is inserted at the top of the two supporting feet. A driving motor for driving the turntable (1) is mounted on the mounting plate (9), and the turntable (1) is rotatably connected to the side wall of the mounting plate (9).

3. The frame quick-change lap welding die according to claim 1, characterized in that: The top of the template (4) away from the notch is fixed to the limiting block (3) by screws, the vertical section of the limiting block (3) is a door-shaped structure, the two clamping plates (5) are slidably connected to the bottom of the limiting block (3), and the two clamping plates (5) are connected by two springs.

4. The frame quick-change lap welding die according to claim 1, characterized in that: The storage grooves (21) are arranged in multiple layers of concentric circles, and the diameter of the top opening of the storage grooves (21) decreases gradually toward the diameter of the bottom inner wall thereof.

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