CN219212110U

CN219212110U - Welding fixture

Info

Publication number: CN219212110U
Application number: CN202320080461.9U
Authority: CN
Inventors: 樊文灏
Original assignee: Sichuan Changhong Jijia Precision Co Ltd
Current assignee: Sichuan Changhong Jijia Precision Co Ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-06-20
Anticipated expiration: 2033-01-12

Abstract

The utility model belongs to the field of welding fixture equipment, in particular relates to a welding fixture, and aims to solve the problems of low positioning accuracy, high overall structure cost and poor welding effect of the existing welding fixture when no positioning hole exists on a welding part. The quick clamp comprises a base and a quick clamp fixedly connected to the base, wherein a part outer Zhou Xianwei pile is fixedly arranged on the upper end face of the base, a limiting frame is formed by the part outer Zhou Xianwei pile, a first pressing rod is fixed at one end of a pressing handle far away from a handle, a positioning notch is formed in the first pressing rod, the handle enables the first pressing rod to move towards the upper end face of the base through the pressing handle, and the first pressing rod limits the structure in the limiting frame to move in the vertical direction of the upper end face of the base; positioning is carried out from the periphery of the welding part through a Zhou Xianwei frame outside the part on the base, positioning holes on the welding part are eliminated, and positioning when the welding part cannot be provided with the positioning holes is met; the quick clamping or loosening between the welding parts is realized through the quick clamp, and the working efficiency and the clamping and fixing effects are improved.

Description

Welding fixture

Technical Field

The utility model belongs to the field of welding fixture equipment, and particularly relates to a welding fixture.

Background

Welding, also known as fusion welding, is a manufacturing process and technique for joining metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure; in modern industry, welding is a common process, in a common welding tool, in order to realize positioning of welding parts, positioning pins are usually matched with positioning holes in the parts, so that the positioning holes are required to be formed in the welding parts, however, the improvement of the appearance design of products and the continuous improvement of processing requirements in modern society are required, the fact that the positioning holes can not be formed in the welding parts is required, the products are manually aligned manually, and then are welded, so that the working efficiency is low, manpower and material resources are consumed, potential safety hazards are caused, in addition, the condition that the welding effect is good and bad is easy to occur, and the qualification rate of the products is difficult to guarantee.

The quick clamp is a novel manual clamp and a pneumatic clamp product with accurate positioning and quick clamping functions, is a clamp product widely applied to the technical processes of welding, riveting, adhering, machining, assembling, logistics and the like of products, and can also be used for fixing a certain part of equipment; the quick clamp can be divided into: vertical type quick tongs, horizontal type quick tongs, push-pull type quick tongs, latch type quick tongs, extrusion clamp type quick tongs, cam type quick tongs, multifunctional combined type quick tongs and the like; the quick clamp is designed according to the mechanical principle of a double-rocker mechanism in a plane four-rod mechanism, and the basic structure of the quick clamp consists of four components such as a connecting rod, a frame, two side links and the like. When the two hinging points of the connecting rod and the side link and the hinging point of one of the side link and the frame are in the same straight line, the mechanism is positioned at the dead point position. At this time, no matter how large the reaction force (except the destructive reaction force) is, the pressing head cannot be loosened, which is the principle of dead point clamping in mechanical mechanics, so compared with the old clamp, the quick clamp has the characteristics of convenience and high efficiency, and the efficiency can be greatly improved in the process of line production.

The utility model provides a publication number is CN 207326806U-a clamping and positioning tool for stamping workpiece detects, a clamping and positioning tool for stamping workpiece detects is disclosed, the on-line screen storage device comprises a base, the detection platform, locating pin and clamp, detection platform and clamp are all fixed to be set up at the upper surface of base, the compact site on the clamp is located the top of detection platform, the detection platform has a surface assorted detection profile with the stamping workpiece, the detachable grafting of locating pin is on the detection profile, the bottom of compact site is connected with the chuck that is used for compressing tightly the clamping surface of stamping workpiece, this chuck is located the top of detection profile, the chuck is less than the area of clamping surface with the contact area of stamping workpiece under the clamping state. The utility model is applicable to stamping parts with at least one hole and stamping parts with smaller clamping surfaces, and can make up for the defects in the prior art; the stamping part is limited by adopting the mounting surface matched with the surface of the stamping part, and a positioning pin is added on the basis of the limiting, so that the positioning of the stamping part is improved; when the positioning pin is not used for positioning and fixing, the positioning is performed in a surface-to-surface matching mode, the requirement on the matching surface is high, the processing difficulty is high, the cost is high, and the positioning precision is difficult to guarantee.

Disclosure of Invention

The utility model provides a welding tool, and aims to solve the problems of low positioning accuracy, high overall structure cost and poor welding effect of the existing welding tool when no positioning hole exists on a welding part.

The technical scheme adopted for solving the technical problems is as follows: the welding tool comprises a base and a quick clamp fixedly connected to the base, wherein the quick clamp comprises a handle and a pressing handle, one end of the pressing handle is rotationally connected with the handle, a part outer Zhou Xianwei pile is fixedly arranged on the upper end face of the base, a part outer Zhou Xianwei pile forms a limiting frame, a first pressing rod is fixedly arranged at one end of the pressing handle far away from the handle, the first pressing rod extends downwards and keeps a distance from the upper end face of the base, a positioning notch is formed in the first pressing rod and extends from the lower end face of the first pressing rod along the vertical direction of the upper end face of the base, the handle enables the first pressing rod to move towards the upper end face of the base through the pressing handle, and the first pressing rod limits the structure in the limiting frame to move in the vertical direction of the upper end face of the base; the quick clamp enables the first pressing rod to have two states of clamping and loosening.

In order to solve the auxiliary positioning problem of the welding parts, a positioning pile is fixedly arranged on the upper end face of the base, and a positioning slot is formed in the upper end face of the positioning pile.

In order to solve the auxiliary fixing problem of the welding parts, the lower end face of the base is fixedly provided with a magnet, and the magnet is positioned below the positioning pile.

For solving the supplementary problem that compresses tightly of welding parts, welding frock still includes the supplementary hold-down mechanism that is located the base upside, and supplementary hold-down mechanism includes crossbeam and at least a pair of connecting rod, and connecting rod fixed connection is on the base, and the crossbeam is connected on the connecting rod, and the terminal surface is equipped with the second hold-down lever fixedly under the crossbeam, and terminal surface and base up end are equipped with the weldment and compress tightly the interval under the second hold-down lever.

Further, the connecting rod is the threaded rod and is equipped with matched with nut, opens there is the through-hole on the crossbeam, through-hole and threaded rod sliding fit, and the second compresses tightly the pole and has two kinds of states of compress tightly and loosen with the help of the cooperation of threaded rod and nut.

Further, the connecting rod is the pin, and the base up end is equipped with the locating hole, pin and locating hole interference fit, and it has the locking hole to open on the crossbeam, locking hole and pin transitional fit, and the second compresses tightly the pole and has two kinds of states of compressing tightly and unclamping with the help of the cooperation of pin and locking hole.

In order to solve the problem of positioning the welding parts by the second pressing rod, a positioning socket is formed in the lower end face of the second pressing rod, and the positioning socket extends from the lower end face of the second pressing rod along the vertical direction of the upper end face of the base.

In order to solve the problem of auxiliary installation of the quick clamp, the quick clamp is provided with a cushion block, the cushion block is fixedly connected to the base, and the quick clamp is fixed to the cushion block.

The beneficial effects of the utility model are as follows: according to the welding fixture, the welding part is positioned from the periphery of the welding part through the part outer Zhou Xianwei frame on the base, so that the positioning requirement when the welding part cannot be provided with the positioning hole is met because the positioning hole on the welding part is canceled unlike the traditional pin hole positioning; the welding parts are clamped or loosened rapidly through the rapid clamp, so that the working efficiency and the clamping and fixing effects are improved; a positioning pile provided with a positioning slot is fixed on the base, the welding part is supported in an auxiliary mode through the positioning pile, the part to be welded is positioned in an auxiliary mode through the positioning slot, and positioning accuracy of the welding part is improved; the auxiliary pressing mechanism is used for assisting the quick clamp to clamp and fix the welding part; and a second pressing rod in the auxiliary pressing mechanism is provided with a positioning socket, so that the effects of improving the positioning precision and the pressing force are achieved.

Drawings

FIG. 1 is a schematic view of a three-dimensional structure for use in the assembly of a welding fixture of the present utility model;

FIG. 2 is a partial view of a cross beam of the present utility model;

FIG. 3 is a schematic view of a three-dimensional structure of a base in the present utility model;

fig. 4 is an enlarged view at a in fig. 3;

FIG. 5 is a schematic diagram of an assembly structure of the welding tool of the present utility model;

FIG. 6 is a bottom view of the base of the present utility model;

FIG. 7 is a schematic view of the structure of the quick clamp of the present utility model;

FIG. 8 is a schematic view of a three-dimensional structure for use in assembly of the welding tool of the present utility model

Marked in the figure as: 1. a base; 2. zhou Xianwei piles outside the parts; 3. a quick clamp; 4. positioning piles; 5. a cross beam; 6. a first hold-down bar; 7. a second hold-down bar; 8. a connecting rod; 9. a cushion block; 10. and (3) a magnet.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or components referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the terms "handle", "press handle" are common names in the art for components of quick clamps.

Referring to fig. 1, 5, 7 and 8, the welding fixture comprises a base 1 and a quick clamp 3 fixedly connected to the base 1, wherein the quick clamp 3 comprises a handle and a pressing handle, one end of the pressing handle is rotationally connected with the handle, a Zhou Xianwei pile 2 outside a part is fixedly arranged on the upper end surface of the base 1, a spacing frame is formed by the Zhou Xianwei pile 2 outside the part, a first pressing rod 6 is fixedly arranged at one end of the pressing handle far away from the handle, the first pressing rod 6 extends downwards and keeps a distance from the upper end surface of the base 1, a positioning notch is formed in the first pressing rod 6 and extends from the lower end surface of the first pressing rod 6 along the vertical direction of the upper end surface of the base 1, the handle enables the first pressing rod 6 to move towards the upper end surface of the base 1 through the pressing handle, and the first pressing rod 6 limits the movement of a structure in the spacing frame in the vertical direction of the upper end surface of the base 1; the quick clamp 3 enables the first pressing rod 6 to have two states of clamping and unclamping.

The positioning of the welding part from the periphery of the welding part is performed through the Zhou Xianwei pile 2 outside the part on the base 1, so that the positioning requirement is difficult to meet when the pin hole is positioned on the welding part which cannot be provided with the positioning hole for certain requirements, unlike the traditional pin hole positioning, the positioning requirement when the welding part cannot be provided with the positioning hole is met by the positioning hole on the welding part; in addition, through the combination of the quick clamp 3 and the first compression rod 6, quick clamping or loosening between welding parts is realized, and the working efficiency and the clamping and fixing effects are improved; the first pressing rod 6 is also provided with a positioning notch, and the positioning accuracy and the fixing reliability of the welding part are improved through the clamping connection of the positioning notch and the welding part.

As shown in fig. 3 and 4, a base 1 of the welding fixture of the utility model is provided with a positioning pile 4 fixedly on the upper end surface of the base 1, and a positioning slot is arranged on the upper end surface of the positioning pile 4; the welding part in the limiting frame is supported in an auxiliary mode through the positioning piles 4, positioning slots are formed in the upper end faces of the positioning piles 4, and the welding part is inserted into the positioning slots through the positioning slots, so that repeated positioning and limiting of the welding part are achieved.

As shown in fig. 6, in the base 1 of the welding fixture of the utility model, a magnet 10 is fixedly arranged on the lower end surface of the base 1, and the magnet 10 is positioned below a positioning pile 4; by the magnet 10 on the lower end face of the base 1, the welded part on the upper end face of the base 1 is adsorbed and fixed, and the reliability of part fixation is improved.

Further, the magnet 10 is preferably an electromagnet 10.

As shown in fig. 1 and 2, the welding fixture further comprises an auxiliary pressing mechanism positioned on the upper side of the base 1, the auxiliary pressing mechanism comprises a cross beam 5 and at least one pair of connecting rods 8, the connecting rods 8 are fixedly connected to the base 1, the cross beam 5 is connected to the connecting rods 8, a second pressing rod 7 is fixedly arranged on the lower end face of the cross beam 5, and a welding part pressing space is formed between the lower end face of the second pressing rod 7 and the upper end face of the base 1; in the utility model, the connection between the second pressing rod 7 and the connecting rod 8 is detachable, so that the position of the cross beam 5 on the connecting rod 8 can be adjusted according to different pressing intervals required, and the locking force is also provided at the fixed position; by the aid of the auxiliary pressing mechanism, auxiliary pressing of welding parts is achieved, and pressing force can be provided when one end of the quick clamp 3 is not firmly fixed.

Further, the connecting rod 8 is a threaded rod and is provided with a matched nut, the cross beam 5 is provided with a through hole, the through hole is in sliding fit with the threaded rod, and the second pressing rod 7 has two states of pressing and loosening by means of the matching of the threaded rod and the nut; the cross beam 5 is tightly pressed through the threaded fit of the threaded rod and the nut, so that the welding part is tightly pressed through the second pressing rod 7; the adjusting and compressing functions of the cross beam 5 are further achieved through the combination of the threaded rod and the nut, the structure is simple, the reliability is high, and the cross beam has economical efficiency when the preset effect can be achieved.

Further, the connecting rod 8 is a pin, the upper end face of the base 1 is provided with a positioning hole, the pin is in interference fit with the positioning hole, the cross beam 5 is provided with a locking hole, the locking hole is in transition fit with the pin, and the second pressing rod 7 has two states of pressing and loosening by virtue of the fit of the pin and the locking hole; through the matching of the pin and the locking hole, when the welding part is required to be pressed, the locking hole of the cross beam 5 is matched with the pin, then the position of the cross beam 5 on the pin is adjusted, so that the part is pressed, and when the part is taken out, the cross beam 5 is pulled out of the pin, and then the part is taken out; through the transition fit of the pin and the positioning hole, the cross beam 5 can be stopped at any position on the connecting rod 8 and has self-locking force.

As shown in fig. 2, in the cross beam 5 of the welding tool, a positioning socket is formed in the lower end face of the second pressing rod 7, and extends from the lower end face of the second pressing rod 7 along the vertical direction of the upper end face of the base 1; the second hold-down bar 7 is offered the location socket, through location socket and welding part looks joint, improves the positioning accuracy and the fixed reliability of welding part.

Further, the quick clamp 3 is provided with a cushion block 9, the cushion block 9 is fixedly connected to the base 1, and the quick clamp 3 is fixed on the cushion block 9; in the utility model, the cushion block 9 can be set into different shapes from the container according to different types of the quick clamp 3, the quick clamp 3 is a vertical quick clamp 3 shown in fig. 1, and the handle is pulled to enable the pressing handle to vertically move, so that the first pressing rod 6 and the welding part are loosened; the horizontal quick clamp 3 is adopted, the cushion block 9 is designed to be L-shaped, and the pressing handle of the horizontal quick clamp 3 is vertically arranged, so that the welding parts are pressed through the first pressing rod 6.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The welding tool comprises a base (1) and a quick clamp (3) fixedly connected to the base (1), wherein the quick clamp (3) comprises a handle and a pressing handle, one end of the pressing handle is rotationally connected with the handle, the welding tool is characterized in that a part outer Zhou Xianwei pile (2) is fixedly arranged on the upper end face of the base (1), a limiting frame is formed by the part outer Zhou Xianwei pile (2), a first pressing rod (6) is fixedly arranged at one end, far away from the handle, of the pressing handle, the first pressing rod (6) extends downwards and keeps a distance from the upper end face of the base (1), a positioning notch is formed in the first pressing rod (6), the positioning notch extends from the lower end face of the first pressing rod (6) along the vertical line direction of the upper end face of the base (1), the first pressing rod (6) moves towards the upper end face of the base (1) through the pressing handle, and the first pressing rod (6) limits the movement of a structure in the limiting frame in the vertical line direction of the base (1); the quick clamp (3) enables the first pressing rod (6) to have two states of clamping and loosening.

2. The welding fixture of claim 1, wherein: the positioning pile (4) is fixedly arranged on the upper end face of the base (1), and a positioning slot is formed in the upper end face of the positioning pile (4).

3. The welding fixture of claim 2, wherein: the lower end face of the base (1) is fixedly provided with a magnet (10), and the magnet (10) is positioned below the positioning pile (4).

4. The welding fixture of claim 1, wherein: the welding fixture is characterized by further comprising an auxiliary pressing mechanism located on the upper side of the base (1), wherein the auxiliary pressing mechanism comprises a cross beam (5) and at least one pair of connecting rods (8), the connecting rods (8) are fixedly connected to the base (1), the cross beam (5) is connected to the connecting rods (8), a second pressing rod (7) is fixedly arranged on the lower end face of the cross beam (5), and a welding part pressing distance is arranged between the lower end face of the second pressing rod (7) and the upper end face of the base (1).

5. The welding fixture of claim 4, wherein: the connecting rod (8) is a threaded rod and is provided with a matched nut, the cross beam (5) is provided with a through hole, the through hole is in sliding fit with the threaded rod, and the second pressing rod (7) is in a pressing state and a loosening state by means of the matching of the threaded rod and the nut.

6. The welding fixture of claim 4, wherein: the connecting rod (8) is a pin, a locating hole is formed in the upper end face of the base (1), the pin is in interference fit with the locating hole, a locking hole is formed in the cross beam (5), the locking hole is in transition fit with the pin, and the second pressing rod (7) is in pressing and loosening states by means of the pin and the locking hole.

7. The welding fixture of claim 5 or 6, wherein: the lower end face of the second pressing rod (7) is provided with a positioning socket, and the positioning socket extends from the lower end face of the second pressing rod (7) along the vertical direction of the upper end face of the base (1).

8. The welding fixture of claim 1, wherein: the quick clamp (3) is provided with a cushion block (9), the cushion block (9) is fixedly connected to the base (1), and the quick clamp (3) is fixed to the cushion block (9).