Clamping tool for saw blade piece welding

Abstract

A clamping tool for saw blade piece welding comprises a support, an inner supporting and tensioning assembly, a clamping part and a motor, the motor is installed on the support, and the inner supporting and tensioning assembly is rotatably installed on the support and is in power connection with the motor; a clamping part is arranged at the supporting end of the inner support tensioning assembly; each clamping part comprises a mounting frame, a clamping block and a movable connecting rod, the mounting frame is arranged on an execution component of the inner support tensioning assembly, inclined guide grooves are formed in the clamping parts, the two clamping parts are horizontally and movably matched in the mounting frame, the inclined guide grooves of the two clamping parts are distributed in a splayed shape, the movable connecting rod is vertically and movably arranged in the mounting frame, and the clamping blocks are arranged on the movable connecting rod. The two ends of the movable connecting rod are matched with the inclined guide grooves of the two clamping parts respectively. According to the device, by arranging the inner supporting and tensioning assembly and the clamping part, when the inner supporting and tensioning assembly is unfolded, centering of the saw blade can be achieved, meanwhile, the saw blade can be clamped through the clamping part, and meanwhile operation of the device is more convenient, rapid and easy.

Description

Technical Field

[0001] The utility model relates to the technical field of saw blade base clamping, in particular to a clamping tool for welding saw blade parts. Background Art

[0002] Saw blades are one of the most common cutting tools. Over the past two decades, alloy saw blades with carbide tips as cutting edges have been widely used. The proportion of carbide circular saw blades used in industries such as building materials, chemicals, wood processing, and non-ferrous metal cutting is increasing. In particular, the quality of carbide saw blades used in wood processing and aluminum alloy cutting has become a major factor in determining project progress and costs. During the manufacturing process, the saw blade base is clamped, and then the tip is welded to the blade base using a circular saw blade welding machine.

[0003] Publication number CN2024201199045 discloses a saw blade base clamping device for a circular saw blade welding machine, including a base, the top of the base is rotatably connected to a rotating shaft, the end of the rotating shaft away from the base is fixedly connected to a movable plate, a pair of symmetrically distributed clamping components are provided on the movable plate, and the top of the base is fixedly connected to a first motor.

[0004] The above-mentioned prior art drives the conical block downward by rotating the screw, so that multiple clamping blocks perform expansion movement, contact and clamp the center hole of the saw blade base, but the saw blade is thin, and the contact area between the center hole of the saw blade base and the clamping blocks is small, so the friction between the two is small, and pressure must be applied to the saw blade when welding. Therefore, it is difficult to drive the saw blade to rotate only through the friction force of the clamping blocks performing expansion movement and contacting the center hole of the saw blade base. Even if the saw blade can be driven to rotate, the saw blade may become loose due to the welding pressure during welding, resulting in welding failure and even safety accidents. Utility Model Content

[0005] The purpose of the present utility model is to provide a clamping tool for welding saw blades to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A clamping tool for welding saw blades, comprising a bracket, an inner support tensioning assembly, a clamping portion, and a motor, wherein the motor is mounted on the bracket, wherein:

[0008] The inner support and tensioning assembly is rotatably mounted on the bracket and is connected to the motor power; a clamping portion is provided on the supporting end of the inner support and tensioning assembly;

[0009] The clamping part includes a mounting frame, a clamping block and a movable connecting rod. The mounting frame is arranged on the executive component of the inner support tensioning assembly. An inclined guide groove is arranged inside the clamping block. The two clamping blocks are horizontally movable and matched inside the mounting frame. The inclined guide grooves of the two clamping blocks are distributed in an "eight" shape. The movable connecting rod is vertically movable and arranged inside the mounting frame. The two ends of the movable connecting rod are respectively matched with the inclined guide grooves of the two clamping blocks.

[0010] Preferably, the clamping portion further comprises a spring, one end of the spring is connected to the mounting frame, and the other end of the spring is connected to the clamping block.

[0011] Preferably, the internal support tensioning assembly includes a mounting base, a switch assembly, a support plate, a connecting rod and a telescopic connecting rod. One end of the mounting base is provided with a threaded portion and the other end is connected to the motor power. The switch assembly is threadedly connected to the threaded portion of the mounting base. The two ends of the support plate are respectively hinged with a connecting rod and a telescopic connecting rod. The other end of the connecting rod is hinged to the switch assembly, and the other end of the telescopic connecting rod is hinged to the mounting base.

[0012] Preferably, the switch assembly includes a rotating sleeve and a connecting rod connecting sleeve, the rotating sleeve is provided with an internal thread and is threadedly matched with the threaded portion of the mounting base, blocking portions are provided at both ends of the rotating sleeve, the connecting rod connecting sleeve is rotatably mounted on the rotating sleeve and is located between the blocking portions, and one end of the connecting rod is hinged to the connecting rod connecting sleeve.

[0013] Preferably, a mounting groove is provided on the support plate, and the mounting bracket is installed in the mounting groove.

[0014] Preferably, a through slot is provided on the mounting frame.

[0015] Preferably, a limiting groove is provided on the mounting base, and the support plate is movably mounted inside the limiting groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The utility model discloses a clamping tool for welding saw blades. When working, an internal support and tensioning component and a clamping part are provided. When the internal support and tensioning component is expanded, not only can the saw blade be centered, but the saw blade can also be clamped by the clamping part, thereby increasing the clamping force of the saw blade, thereby adapting to the welding pressure of the saw blade. At the same time, the operation of the device is more convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a three-dimensional schematic diagram of the inner support tensioning assembly of the present invention when tightened;

[0020] Figure 3 It is a three-dimensional schematic diagram of the clamping part of the present invention;

[0021] Figure 4 This is a three-dimensional schematic diagram of the inner support tensioning assembly of the present invention when it is unfolded;

[0022] Figure 5 It is a three-dimensional schematic diagram of the rotating sleeve in the present utility model;

[0023] Figure 6 This is a three-dimensional schematic diagram of the connecting rod connecting sleeve in the utility model;

[0024] Figure 7 It is a three-dimensional schematic diagram of the mounting frame in the present utility model;

[0025] Figure 8 It is a three-dimensional schematic diagram of the clamping block in the utility model;

[0026] Figure 9 It is a top view of the clamping part in the utility model.

[0027] In the figure: 1 bracket, 2 inner support tensioning assembly, 3 clamping part, 4 motor, 31 mounting frame, 32 clamping block, 33 movable connecting rod, 34 spring, 21 mounting base, 22 switch assembly, 23 support plate, 24 connecting rod, 25 telescopic connecting rod, 211 limiting groove, 221 rotating sleeve, 222 connecting rod connecting sleeve, 231 mounting groove, 311 passing groove, 321 inclined guide groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figures 1 to 9 , the utility model provides a technical solution:

[0031] A clamping tool for welding saw blades, comprising a bracket 1, an inner support tensioning assembly 2, a clamping portion 3 and a motor 4, wherein the motor 4 is mounted on the bracket 1, wherein:

[0032] The inner support and tensioning assembly 2 is rotatably mounted on the bracket 1 and is connected to the power of the motor 4. A clamping portion 3 is provided on the supporting end of the inner support and tensioning assembly 2. The clamping portion 3 is used to clamp the saw blade, and the motor 4 drives the saw blade to rotate by driving the inner support and tensioning assembly 2 to rotate.

[0033] The clamping portion 3 includes a mounting frame 31, a clamping block 32, and a movable connecting rod 33. The mounting frame 31 is mounted on the actuator of the inner support tensioning assembly 2. The clamping block 32 is provided with an inclined guide groove 321. The two clamping blocks 32 are horizontally movable and engage within the mounting frame 31. The inclined guide grooves 321 of the two clamping blocks 32 are arranged in an "eight" pattern. The movable connecting rod 33 is vertically movable and mounted within the mounting frame 31. The ends of the movable connecting rod 33 respectively engage with the inclined guide grooves 321 of the two clamping blocks 32. When the movable connecting rod 33 moves along the inclined guide grooves 321 toward the bottom of the mounting frame 31, it drives the two clamping blocks 32 closer together, thereby clamping and securing the saw blade.

[0034] As a preferred embodiment, the clamping portion 3 further includes a spring 34, one end of the spring 34 is connected to the mounting bracket 31, and the other end is connected to the clamping block 32. When the saw blade is removed, the movable connecting rod 33 will be reset under the elastic force of the spring 34.

[0035] As a preferred embodiment, the internal support tensioning assembly 2 includes a mounting base 21, a switch assembly 22, a support plate 23, a connecting rod 24, and a telescopic connecting rod 25. The mounting base 21 has a threaded portion at one end and is powered by the motor 4 at the other end. The switch assembly 22 is threadedly connected to the threaded portion of the mounting base 21. The supporting plate 23 is hinged at both ends with a connecting rod 24 and a telescopic connecting rod 25. The other end of the connecting rod 24 is hinged to the switch assembly 22, and the other end of the telescopic connecting rod 25 is hinged to the mounting base 21. When the switch assembly 22 moves to the right side of the mounting base 21, it drives the support plate 23 to expand outward through the connecting rod 24 and the telescopic connecting rod 25. The purpose of providing the telescopic connecting rod 25 is to enable the support plate 23 to expand outward.

[0036] As a preferred embodiment, the switch assembly 22 includes a rotating sleeve 221 and a connecting rod sleeve 222. The rotating sleeve 221 has an internal thread that is threadedly engaged with the threaded portion of the mounting base 21. Blocking portions are provided at both ends of the rotating sleeve 221. The connecting rod sleeve 222 is rotatably mounted on the rotating sleeve 221 and positioned between the blocking portions. One end of the connecting rod 24 is hingedly connected to the connecting rod sleeve 222. Rotating the rotating sleeve 221 causes the rotating sleeve 221 to drive the connecting rod sleeve 222 toward the right side of the mounting base 21. As the connecting rod sleeve 222 moves, the telescopic link 25 is extended outward through the connecting rod 24 and the telescopic link 25. When the telescopic link 25 is extended, the saw blade pushes the movable connecting rod 33 toward the bottom of the mounting bracket 31.

[0037] As a preferred embodiment, a mounting groove 231 is provided on the support plate 23 , and the mounting bracket 31 is installed in the mounting groove 231 .

[0038] As a preferred embodiment, a through slot 311 is formed on the mounting frame 31. The through slot 311 allows the saw blade and the mounting frame 31 to have space for relative movement without causing motion interference.

[0039] As a preferred embodiment, a limiting groove 211 is formed on the mounting base 21, and the support plate 23 is movably mounted inside the limiting groove 211. The limiting groove 211 is used to limit the movement of the support plate 23 so that the support plate 23 can only expand outward and retract inward.

[0040] The working principle of the present utility model is as follows: when the device is in use, the saw blade is first placed between the two clamping blocks 32, and then the rotating sleeve 221 is rotated, so that the rotating sleeve 221 drives the connecting rod sleeve 222 to move toward the mounting groove 231. While the connecting rod sleeve 222 moves, the telescopic connecting rod 25 is expanded outward through the connecting rod 24 and the telescopic connecting rod 25. When the telescopic connecting rod 25 is expanded, the saw blade will push the movable connecting rod 33 to move toward the bottom of the mounting frame 31. At this time, the movable connecting rod 33 will drive the two clamping blocks 32 to approach each other, thereby achieving the purpose of clamping and fixing the saw blade.

[0041] When the saw blade is taken out, the movable connecting rod 33 is reset under the elastic force of the spring 34. When the rotating sleeve 221 drives the connecting rod connecting sleeve 222 to move in the opposite direction, the connecting rod 24 and the telescopic connecting rod 25 are contracted, which drives the telescopic connecting rod 25 to contract inwardly.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping tool for welding saw blades, comprising a bracket (1), an inner support tensioning assembly (2), a clamping portion (3) and a motor (4), wherein the motor (4) is mounted on the bracket (1), and is characterized in that: The inner support tensioning assembly (2) is rotatably mounted on the bracket (1) and is connected to the motor (4) in a power manner; a clamping portion (3) is provided on the supporting end of the inner support tensioning assembly (2); The clamping portion (3) includes a mounting frame (31), a clamping block (32) and a movable connecting rod (33); the mounting frame (31) is arranged on the execution component of the inner support tensioning assembly (2); an inclined guide groove (321) is arranged inside the clamping block (32); the two clamping blocks (32) are horizontally movable and matched inside the mounting frame (31); the inclined guide grooves (321) of the two clamping blocks (32) are distributed in an "eight" shape; the movable connecting rod (33) is vertically movable and arranged inside the mounting frame (31); the two ends of the movable connecting rod (33) are respectively matched with the inclined guide grooves (321) of the two clamping blocks (32).

2. A saw blade welding clamping tool according to claim 1, characterized in that: The clamping portion (3) further comprises a spring (34), one end of the spring (34) being connected to the mounting frame (31) and the other end being connected to the clamping block (32).

3. The saw blade welding clamping tool according to claim 1, characterized in that: The inner support tensioning assembly (2) comprises a mounting base (21), a switch assembly (22), a support plate (23), a connecting rod (24) and a telescopic connecting rod (25); one end of the mounting base (21) is provided with a threaded portion, and the other end is connected to the motor (4) for power; the switch assembly (22) is threadedly connected to the threaded portion of the mounting base (21); the two ends of the support plate (23) are respectively hinged with a connecting rod (24) and a telescopic connecting rod (25); the other end of the connecting rod (24) is hinged to the switch assembly (22), and the other end of the telescopic connecting rod (25) is hinged to the mounting base (21).

4. The saw blade welding clamping tool according to claim 3, characterized in that: The switch assembly (22) comprises a rotating sleeve (221) and a connecting rod connecting sleeve (222); the rotating sleeve (221) is provided with an internal thread and is threadably matched with a threaded portion of the mounting base (21); blocking portions are provided at both ends of the rotating sleeve (221); the connecting rod connecting sleeve (222) is rotatably mounted on the rotating sleeve (221) and is located between the blocking portions; one end of the connecting rod (24) is hinged to the connecting rod connecting sleeve (222).

5. The saw blade welding clamping tool according to claim 3, characterized in that: The support plate (23) is provided with a mounting groove (231), and the mounting frame (31) is mounted in the mounting groove (231).

6. The saw blade welding clamping tool according to claim 2, characterized in that: The mounting frame (31) is provided with a through slot (311).

7. The saw blade welding clamping tool according to claim 5, characterized in that: A limiting groove (211) is provided on the mounting base (21), and the support plate (23) is movably mounted inside the limiting groove (211).

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