Retainer welding tool capable of preventing dislocation and welding spot protrusion

Abstract

The retainer welding tool comprises a base, a positioning core rod, a left electrode and a right electrode, the upper end face of the left electrode is provided with a left semi-arc, the inner side face of the left electrode is provided with a left semi-core rod hole, the upper end face of the right electrode is provided with a right semi-arc, and the inner side face of the right electrode is provided with a right semi-core rod hole. The left half arc and the right half arc are combined to form a retainer containing groove, the shape of the retainer containing groove is matched with that of a retainer, the left half core rod hole and the right half core rod hole are combined to form a core rod hole, and the positioning core rod is fixedly arranged in the base through the lower portion of the positioning core rod and can move up and down along with the base. The upper portion of the positioning core rod extends out of the base and can penetrate through the core rod hole, the length and the width of the section of the upper portion of the positioning core rod are consistent with the length and the width of a window of the retainer, and the retainer welding tool is high in positioning precision, convenient to position and capable of preventing welding dislocation and welding spots in the welding window from protruding.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding positioning tooling technical field especially relates to a kind of anti-misplacement and welding point convex cage welding tooling. BACKGROUND

[0002] To improve the production efficiency and precision of needle bearing cage, the manufacturing process of rolling, coiling and welding is developed, and the welding of the coiled cage interface is the last and most important process of the manufacturing process. During the welding process, tooling is required to clamp and position the cage.

[0003] The existing cage positioning and welding tooling only positions the cage shape, cannot control the protrusion of the welding point inside the welding window, and the welding interface has no limit in the axial direction, which can easily cause axial misplacement and other product defects on the end face. UTILITY MODEL CONTENTS

[0004] How to avoid axial misplacement of the welding interface on the end face is a difficult problem to be solved, and preventing the protrusion of the welding point inside the welding window is also a problem to be solved. Therefore, according to these problems, the utility model designs a cage welding tooling with high positioning accuracy, convenient positioning, and prevention of welding misplacement and welding point protrusion inside the welding window.

[0005] The utility model is implemented through the following technical solutions: a kind of anti-misplacement and welding point convex cage welding tooling, including base, positioning mandrel, left electrode and right electrode.

[0006] To quickly and accurately position the cage to be welded, the left electrode and the right electrode are respectively arranged on the two sides above the base and can move towards or away from the base, a left semicircle is formed on the upper end surface of the left electrode, a right semicircle is formed on the upper end surface of the right electrode, and the left semicircle and the right semicircle combine to form a cage placement groove that matches the shape of the cage.

[0007] To improve positioning accuracy and compactness, further, the base has positioning bevels on both sides of the upper end, and the left electrode bottom and the right electrode bottom are respectively provided with left positioning groove and right positioning groove matching the shape of the upper end of the base.

[0008] To avoid axial misplacement of the welding interface on the end face, a left half mandrel hole is formed on the inner side of the left electrode, a right half mandrel hole is formed on the inner side of the right electrode, the left half mandrel hole and the right half mandrel hole combine to form a mandrel hole, the positioning mandrel is fixedly arranged in the base through the lower part of the positioning mandrel and can move up and down with the base, and the upper part of the positioning mandrel extends out of the base and can pass through the mandrel hole, thereby achieving axial limitation of the cage welding interface during welding.

[0009] In order to effectively prevent the welding point from protruding inside the welding window, the length and width of the upper section of the positioning core rod are consistent with the length and width of the window of the retainer.

[0010] In order to improve the reliability of the clamping of the positioning core rod, further, the base comprises a base body and a locking block, the base body is internally provided with a core rod placing groove, the base body is provided with clamping grooves on the front and rear sides, the positioning core rod is arranged in the core rod placing groove and is provided with fixing grooves on the two sides of the lower part of the positioning core rod corresponding to the positions of the clamping grooves, the locking block is provided with protruding blocks on the two sides corresponding to the positions of the clamping grooves, the width of the protruding blocks is consistent with the total width of the clamping grooves and the fixing grooves, the protruding blocks are clamped in the clamping grooves and the fixing grooves and are fixedly connected with the base body through fasteners, so that the positioning core rod is fixedly connected in the base.

[0011] Preferably, the material of the positioning core rod is ceramic, and the materials of the left electrode and the right electrode are copper.

[0012] The retainer welding tool capable of preventing mispositioning and welding point protrusion has the advantages that: the movable left and right electrodes which are consistent with the shape of the retainer are designed, so that the retainer can be quickly and accurately positioned; the positioning core rod which is consistent with the shape of the welding window is used in cooperation, so that the axial positioning of the retainer welding interface during welding is realized, thereby effectively preventing mispositioning and welding point protrusion inside the welding window and greatly improving product quality; in addition, the retainer welding tool capable of preventing mispositioning and welding point protrusion has a compact and reliable structure. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figures 1-2 Fig. 1 is a structural schematic view of the retainer welding tool capable of preventing mispositioning and welding point protrusion of the utility model;

[0014] Figure 3 Fig. 3 is a structural schematic view of the left electrode and the right electrode of the retainer welding tool capable of preventing mispositioning and welding point protrusion of the utility model;

[0015] Figure 4 Fig. 4 is an exploded schematic view of the base and the positioning core rod of the retainer welding tool capable of preventing mispositioning and welding point protrusion of the utility model;

[0016] Figure 5 Fig. 5 is a structural schematic view of the retainer after being clamped by the retainer welding tool capable of preventing mispositioning and welding point protrusion of the utility model;

[0017] In the figure: 1. base; 11. base body; 111. mandrel placing groove; 112. clamping groove; 12. locking block; 121. protrusion; 113. positioning slope; 2. positioning mandrel; 21. fixing groove; 3. left electrode; 31. left semicircle arc; 32. left half mandrel hole; 33. left positioning groove; 4. right electrode; 41. right semicircle arc; 42. right half mandrel hole; 43. right positioning groove; 5. retainer placing groove; 6. mandrel hole; 9. retainer; 91. window; 92. interface. DETAILED DESCRIPTION

[0018] The advantages and features of the present application will be more apparent from the following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, so as to make the scope of the present application more clearly defined.

[0019] As shown in a kind of anti-misplacement and welding point convex retainer welding tool, including base 1, ceramic material positioning mandrel 2, copper material left electrode 3 and right electrode 4. Figures 1-2 As shown in a kind of anti-misplacement and welding point convex retainer welding tool, including base 1, ceramic material positioning mandrel 2, copper material left electrode 3 and right electrode 4.

[0020] The upper end of the base 1 has positioning slope 113 on both sides, and the bottom of the left electrode 3 and the bottom of the right electrode 4 are respectively provided with left positioning groove 33 and right positioning groove 43 matched with the upper end of the base 1, and the left electrode 3 and the right electrode 4 are respectively arranged on the upper sides of the base 1 and can move towards or away from the base 1.

[0021] In use, the base 1, the left electrode 3 and the right electrode 4 are respectively connected to the driving device of the equipment and can move within the respective stroke range under the action of the driving device.

[0022] As shown in a kind of anti-misplacement and welding point convex retainer welding tool, including base 1, ceramic material positioning mandrel 2, copper material left electrode 3 and right electrode 4. Figure 3 As shown in a kind of anti-misplacement and welding point convex retainer welding tool, including base 1, ceramic material positioning mandrel 2, copper material left electrode 3 and right electrode 4.

[0023] The positioning mandrel 2 extends out of the base 1 at the upper part and can pass through the mandrel hole 6, and the length and width of the upper part cross section of the positioning mandrel 2 are consistent with the length and width of the window 91 of the retainer 9.

[0024] As shown in a kind of anti-misplacement and welding point convex retainer welding tool, including base 1, ceramic material positioning mandrel 2, copper material left electrode 3 and right electrode 4. Figure 4As shown, the base 1 includes a base body 11 and a locking block 12, the base body 11 is internally provided with a mandrel placing groove 111, the front and rear sides of the base body 11 are provided with clamping grooves 112, the positioning mandrel 2 is arranged in the mandrel placing groove 111 and the lower part of the positioning mandrel 2 is provided with fixing grooves 21 corresponding to the positions of the clamping grooves 112, the locking block 12 is provided with protrusions 121 corresponding to the positions of the clamping grooves 112, the width of the protrusions 121 is consistent with the total width of the clamping grooves 112 and the fixing grooves 21, the protrusions 121 are clamped in the clamping grooves 112 and the fixing grooves 21 and are fixedly connected with the base body 11 through fasteners, so that the positioning mandrel 2 is fixedly connected in the base 1.

[0025] As Figure 5 As shown, when the welding work of the interface of the round-rolled retainer 9 is carried out by using the anti-positioning and welding protrusion retainer welding tool, under the action of the driving device on the equipment, first, the left electrode 3 and the right electrode 4 are both moved to the middle to preliminarily clamp and position the retainer 9, then the base 1 rises, taking the positioning mandrel 2 to rise, clamping in the window 91 at the position of the interface 92 of the retainer 9, so that the axial positioning of the interface 92 position is completed, effectively preventing the axial mispositioning of the end face, finally, the welding machine is used to weld the interface 92 position, since the positioning mandrel 2 fills the window 91 at the interface 92 position, no welding protrusion is generated inside the window 91.

[0026] In all examples shown and described herein, any specific values should be interpreted as merely exemplary and not as a limitation, and thus, other examples of the example embodiments can have different values.

[0027] It should be noted that like reference numerals and letters refer to like items throughout the several views, and as a result, once an item is defined in one view, it need not be further defined and explained in subsequent views.

[0028] In addition, in the description of the embodiments of the present application, unless specifically defined and limited, the terms "mounting", "connecting", "connecting", "setting", "provided with" and the like should be interpreted in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the utility model, it is necessary to explain that the directions or position relations of terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements indicated must have a specific direction, be constructed and operated in a specific direction, and thus cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] The above-described embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary skilled persons in the art, under the premise of not departing from the concept of the utility model, several modifications and improvements can be made, which all belong to the protection scope of the utility model.

Claims

1. A cage welding fixture for preventing misalignment and weld point protrusion, characterized in that: The device includes a base, a positioning mandrel, a left electrode, and a right electrode. The left and right electrodes are respectively positioned on the upper sides of the base and can move towards or away from the base. The upper surface of the left electrode has a left semi-circular arc, and the inner side has a left half-mandrel hole. The upper surface of the right electrode has a right semi-circular arc, and the inner side has a right half-mandrel hole. The left and right semi-circular arcs form a retainer placement groove, which matches the shape of the retainer. The left and right half-mandrel holes combine to form a mandrel hole. The positioning mandrel is fixedly installed in the base through its lower part and can move up and down with the base. The upper part of the positioning mandrel extends out of the base and can pass through the mandrel hole. The length and width of the upper section of the positioning mandrel are consistent with the length and width of the retainer window.

2. The cage welding fixture for preventing misalignment and weld point protrusion according to claim 1, characterized in that: The base includes a base body and a locking block. The base body has a core rod placement groove and slots on its front and rear sides. The positioning core rod is placed in the core rod placement groove, and the lower two sides of the positioning core rod have fixing slots corresponding to the slot positions. The locking block has protrusions on both sides corresponding to the slot positions. The width of the protrusions is the same as the total width of the slots and fixing slots. The protrusions are engaged in the slots and fixing slots and are fixedly connected to the base body by fasteners.

3. The cage welding fixture for preventing misalignment and weld point protrusion according to claim 1, characterized in that: The positioning core is made of ceramic, and the left and right electrodes are made of copper.

4. The cage welding fixture for preventing misalignment and weld point protrusion according to claim 1, characterized in that: The upper end of the base has positioning slopes on both sides, and the bottom of the left electrode and the bottom of the right electrode are respectively provided with left positioning groove and right positioning groove matching the shape of the upper end of the base.

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