阅读说明：本技术 一种电阻焊工件快速对准夹具 (Quick aligning clamp for resistance welding workpiece ) 是由 孔令超 王尚 田艳红 于 2019-09-27 设计创作，主要内容包括：一种电阻焊工件快速对准夹具,属于微电阻焊技术领域。夹具壳体一端的上部与可调卡座可拆卸固定连接,夹具壳体另一端的上部通过调节机构与并列配合设置的两个定位挡板滑动连接,两个定位挡板之间设有竖直设置的工件导电底座,调节机构以及工件导电底座均设置在夹具壳体的内部,工件导电底座位于夹具壳体的中部且下端与夹具壳体可拆卸固定连接。本发明可实现待焊工件的快速定位,防止在电极电阻焊过程中产生偏移,可用于多种尺寸的工件,更换不同尺寸的工件后,无需重新对准,利于提升工件的电阻焊效率。(A rapid aligning clamp for resistance welding workpieces belongs to the technical field of micro-resistance welding. Fixed connection can be dismantled with adjustable cassette on the upper portion of anchor clamps casing one end, and the upper portion of the anchor clamps casing other end is through adjustment mechanism and two positioning baffle sliding connection that set up with the cooperation side by side, is equipped with the electrically conductive base of work piece of vertical setting between two positioning baffle, and adjustment mechanism and the electrically conductive base of work piece all set up the inside at the anchor clamps casing, and the electrically conductive base of work piece is located the middle part and the lower extreme of anchor clamps casing and can dismantle fixed connection with the anchor clamps casing. The invention can realize the quick positioning of the workpiece to be welded, prevent the deviation generated in the electrode resistance welding process, can be used for workpieces with various sizes, does not need to be realigned after the workpieces with different sizes are replaced, and is beneficial to improving the resistance welding efficiency of the workpieces.)

1. The utility model provides a resistance welds work piece and aims at anchor clamps fast which characterized in that: including anchor clamps casing (1), adjustable cassette (2), the electrically conductive base of work piece (3), adjustment mechanism and two positioning baffle (4), fixed connection can be dismantled with adjustable cassette (2) on the upper portion of anchor clamps casing (1) one end, and the upper portion of the anchor clamps casing (1) other end is passed through adjustment mechanism and is cooperated two positioning baffle (4) sliding connection that set up side by side, the electrically conductive base of work piece (3) of vertical setting is equipped with between two positioning baffle (4), adjustment mechanism and the electrically conductive base of work piece (3) all set up the inside at anchor clamps casing (1), the electrically conductive base of work piece (3) are located the middle part and the lower extreme of anchor clamps casing (1) and can dismantle fixed connection with anchor clamps casing (1).

2. A rapid alignment fixture for resistance welding workpieces as recited in claim 1, wherein: the upper surface of the clamp shell (1) is provided with a positioning baffle sliding chute (1-2) and a clamping block group, and the positioning baffle sliding chute (1-2) penetrates through the thickness of a top plate of the clamp shell (1); the fixture block group comprises two fixture blocks (1-1), the two fixture blocks (1-1) are arranged in parallel along the width direction of the fixture shell (1), and a threaded blind hole is formed between the two fixture blocks (1-1).

3. a rapid alignment fixture for resistance welding workpieces as claimed in claim 2, wherein: the lower end of the adjustable clamping seat (2) is provided with a clamping groove group corresponding to the clamping block group, the middle of the clamping groove group is provided with a threaded through hole corresponding to the threaded blind hole, and the adjustable clamping seat (2) is detachably and fixedly connected with the clamp shell (1) in a mode that the clamping block group is inserted into the clamping groove group and the threaded blind hole and the threaded through hole are screwed with a fixing screw.

4. A rapid alignment fixture for resistance welding workpieces as recited in claim 1, wherein: the adjusting mechanism comprises two gears (5-1), two connecting plates (5-2), four connecting rods (5-3) and four racks (5-4), the two gears (5-1) are both vertically arranged and coaxially and fixedly connected, the upper end and the lower end of each gear (5-1) are respectively meshed with the corresponding racks (5-4), the four connecting rods (5-3) are all horizontally arranged and are arranged in a rectangular array, each connecting rod (5-3) is fixedly connected with the corresponding rack (5-4), the two connecting rods (5-3) positioned on the same side are fixedly connected with the corresponding connecting plates (5-2), and the two connecting rods (5-3) positioned at the upper end are fixedly connected with the lower ends of the corresponding positioning baffles (4).

5. A rapid alignment fixture for resistance welding workpieces as claimed in claim 2, wherein: the two positioning baffles (4) are both vertically arranged, the lower ends of the two positioning baffles are both provided with extending parts (4-1), and each extending part (4-1) is arranged in the baffle sliding groove (1-2) in a clearance mode.

6. A rapid alignment fixture for resistance welding workpieces as recited in claim 1, wherein: the fixture comprises a fixture shell (1), and is characterized in that a workpiece positioning groove (3-1) is formed in the upper surface of the workpiece conductive base (3) along the length direction of the workpiece conductive base, a conductive base positioning hole (3-2) is formed in the lower end of the workpiece conductive base (3), a placing groove is formed in the bottom plate of the fixture shell (1), a through hole is formed in the middle of one end face of the placing groove, the end face of the fixture shell (1) penetrates through the middle of the one end face of the placing groove, and the workpiece conductive base (3) is placed in the placing groove and can be detachably and fixedly connected with the through hole and the conductive.

Technical Field

The invention relates to a rapid alignment clamp for resistance welding workpieces, and belongs to the technical field of micro-resistance welding.

Background

The main principle of the resistance welding of the counter electrode is that two workpieces to be welded are pressed tightly by an upper electrode and a lower electrode of a resistance welding machine and are electrified, the workpieces are locally heated by joule heat generated between the workpieces, and the workpieces are connected by plastic deformation and atomic diffusion. The electrode resistance welding is suitable for workpieces of various materials and shapes, and can be used for connecting metal wires (such as copper wires and nickel alloy wires), belts (such as nickel belts), sheets (such as copper foils) and the like.

However, when a workpiece is welded by resistance welding using a counter electrode, the workpiece is easily biased by the pressure of the upper electrode and the lower electrode. Particularly, the thin wire with a circular cross section is easy to slide during welding, so that alignment deviation is easy to cause, and the welding quality is influenced. The effect of pressure-induced deflection is not significant for larger size workpieces (>5mm), but for some special small size workpieces, such as brushes (<1mm) in motors, wires (10-100 μm), etc., alignment errors can severely affect the performance of the final product.

The existing method generally controls the relative position of a workpiece to be welded in a manual adjustment mode, so that the working efficiency is low, the quality of a welded product cannot be guaranteed, and the production efficiency is seriously influenced.

Therefore, a new workpiece fixture needs to be developed to achieve alignment of the workpiece, so as to improve the efficiency of resistance welding of the tiny workpieces.

disclosure of Invention

in order to solve the problems in the background art, the invention provides a rapid alignment clamp for a resistance welding workpiece.

The invention adopts the following technical scheme: the utility model provides a resistance welds work piece and aims at anchor clamps fast, includes anchor clamps casing, adjustable cassette, the electrically conductive base of work piece, adjustment mechanism and two positioning baffle, fixed connection can be dismantled with adjustable cassette on the upper portion of anchor clamps casing one end, and adjustment mechanism and two positioning baffle sliding connection that cooperate the setting side by side are passed through on the upper portion of the anchor clamps casing other end, the electrically conductive base of work piece that is equipped with vertical setting between two positioning baffle, adjustment mechanism and the electrically conductive base of work piece all set up the inside at the anchor clamps casing, the electrically conductive base of work piece is located the middle part of anchor clamps casing and the lower extreme can dismantle fixed connection with the anchor clamps.

Compared with the prior art, the invention has the beneficial effects that:

The invention takes the conductive base of the workpiece as the lower electrode of the electrode resistance welding, and is integrally designed, the rapid positioning of the workpiece to be welded can be realized through the positioning groove and the two positioning baffles of the conductive base of the workpiece, the deviation in the electrode resistance welding process is prevented, the distance between the two positioning baffles is adjustable, and the conductive base of the invention can be used for workpieces with various sizes and has wide application range; the two gears move synchronously, so that the central lines of the two positioning baffles and the central line of the positioning groove of the workpiece conductive base are positioned on the same straight line, and after workpieces with different sizes are replaced, realignment is not needed, and the resistance welding efficiency of the workpieces is improved.

Drawings

FIG. 1 is an isometric view of the overall construction of the rapid registration fixture for resistance welding workpieces of the present invention;

FIG. 2 is an exploded view of the internal structure of FIG. 1;

Fig. 3 is a schematic view of a conductive mount for a workpiece.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.