A positioning tool for aluminum bar welding

Abstract

The utility model discloses a positioning tool for aluminum bar welding, aiming to solve the shortcomings of low efficiency and poor precision of the existing aluminum bar welding process. The utility model includes a lower tooth positioning row and an upper tooth positioning row, both of which have tooth walls for fitting the bottom wall of the aluminum bar and positioning the side wall of the aluminum bar, the tooth walls are arranged at equal intervals along the length direction of the lower tooth positioning row or the upper tooth positioning row, and the upper tooth positioning row and the lower tooth positioning row are staggered; and a motion mechanism, the motion mechanism drives the upper tooth positioning row to perform relative movement in the height direction and the length direction relative to the lower tooth positioning row; wherein the motion mechanism includes a driving wheel, a guide rail and a slider that can rotate around the center, the driving wheel has a guide groove arranged in the radial direction, the slider is slidably connected to the guide rail and the guide groove at the same time, the slider is rotatably connected to the upper tooth positioning row, and the guide rail is L-shaped. The lower tooth positioning row and the upper tooth positioning row can effectively align the aluminum bars to achieve batch positioning.

Description

Technical Field

[0001] The utility model relates to the technical fields of wire and cable fixtures, and more specifically, to a positioning fixture for aluminum bar welding. Background Art

[0002] Aluminum busbars are usually made of aluminum material, with a rectangular, circular or oval cross-section, and act as a conductive bus. Change to: Used as high-voltage charging wires in new energy vehicles and charging pile equipment.

[0003] In the production process of busbars, in order to meet different length requirements, the aluminum bars need to be welded to extend the length. The existing aluminum bar welding mainly relies on heat and pressure to weld the aluminum bars together.

[0004] Due to vehicle vibration, a reliable connection must be maintained and no desoldering may occur due to vibration.

[0005] However, the existing welding method cannot achieve batch welding, and the shape obtained by welding is not beautiful. The unevenness caused by welding makes it impossible to cooperate with the subsequent extruder for plastic coating.

[0006] The present application aims to address the above-mentioned deficiencies and provide a positioning tool for aluminum bar welding, so that aluminum bars can be positioned in batches in a neat, standard and unified manner, which is conducive to subsequent welding, thereby participating in the standardized production line of aluminum bar welding positioning. Summary of the invention

[0007] The utility model overcomes the shortcomings of low efficiency and poor precision of the existing aluminum bar welding process, and provides a positioning tool for aluminum bar welding, which can position aluminum bars in batches, thereby assisting subsequent batch welding.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A positioning tool for aluminum bar welding, comprising:

[0010] The lower tooth positioning row and the upper tooth positioning row carrying the aluminum row, both of which have tooth walls for fitting the bottom wall of the aluminum row and positioning the side walls of the aluminum row, the tooth walls are arranged at equal intervals along the length direction of the lower tooth positioning row or the upper tooth positioning row, and the upper tooth positioning row and the lower tooth positioning row are arranged alternately;

[0011] and a motion mechanism, wherein the motion mechanism drives the upper tooth positioning row to move relative to the lower tooth positioning row in height direction and length direction;

[0012] Among them, the motion mechanism includes a driving wheel, a guide rail and a slider that can rotate around the center. The driving wheel has a guide groove arranged in the radial direction. The slider is slidingly connected to the guide rail and the guide groove at the same time. The slider is rotatably connected to the upper tooth positioning row, and the guide rail is L-shaped.

[0013] The lower tooth positioning row and the upper tooth positioning row position the aluminum row, and the tooth walls arranged at equal intervals make the spacing between the aluminum rows that have completed positioning the same. The arrangement makes it possible for adjacent aluminum rows that are heated and welded to not be connected or interfere with each other.

[0014] The movement in the height direction provided by the motion mechanism realizes the positioning of the aluminum bar in the height direction and restricts the aluminum bar from being separated from the tooth combs between the lower tooth positioning row and the upper tooth positioning row. Then, through the relative movement in the left and right directions, the tooth wall fits with the side wall of the aluminum bar, and the friction force is generated by the pressing force to realize the restriction of each degree of freedom, complete the positioning of the aluminum bar, and facilitate the subsequent welding.

[0015] The motion mechanism only includes a driving wheel as a power source, and through the cooperation of the guide rail and the guide groove, the motion is first performed in the height direction, and then in the length direction. The method can simplify control and reduce debugging, and reduce the cost of tooling.

[0016] Preferably, the driving wheel is driven by a stepper motor to reciprocate. After the stepper motor drives the driving wheel to rotate a preset angle, it is maintained for a certain period of time, and then reverses to reset and release the positioning of the aluminum bar.

[0017] Preferably, the driving wheel is driven by a cylinder, a connecting rod is radially provided on the driving shaft of the driving wheel, the connecting rod is slidably connected to the driving shaft, and the end of the connecting rod is hinged to the extended end of the cylinder. The present application adopts a cylinder drive which is easier to control, so that the telescopic end stroke of the cylinder corresponds to the two stroke ends of the guide rail, so that the movement and positioning in two directions can be completed in a linear manner, and the implementation of the device is more intuitive.

[0018] Preferably, the driving wheel is driven by a cylinder, a rack arranged along the height direction is provided on the extended end of the cylinder, a gear is coaxially fixedly connected to the driving wheel, and the rack and the gear are meshed. The structure is implemented in the form of a rack and a gear.

[0019] Preferably, the end of the tooth wall has a guide portion, and the farther away from the bottom wall, the thinner the guide portion is. The guide portion plays a guiding role, so that the tooth wall of the upper tooth positioning row can be inserted between the tooth wall of the lower tooth positioning row and the aluminum row, thereby squeezing the aluminum row to one side to complete the positioning.

[0020] Preferably, the friction coefficient of the tooth wall is greater than that of the bottom wall. The structure provides friction force by clamping between the lower tooth positioning row and the upper tooth positioning row, thereby limiting the movement of the aluminum row along its length direction.

[0021] Preferably, the slider comprises a first slider and a second slider, the first slider is slidably connected to the guide rail, the second slider is slidably connected to the guide groove, and the first slider and the second slider are hinged.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) A single power source can achieve movement in two directions, which can simplify control, reduce costs and the probability of error;

[0024] (2) The lower tooth positioning row and the upper tooth positioning row can effectively align the aluminum rows and maintain the same spacing, thereby achieving batch positioning, which is beneficial to subsequent batch welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the principle of the motion mechanism of the utility model;

[0027] Figure 3 It is a schematic diagram of an embodiment of the motion mechanism of the utility model;

[0028] Figure 4 It is a schematic diagram of another embodiment of the motion mechanism of the utility model;

[0029] In the figure:

[0030] Lower gear positioning row 1, upper gear positioning row 2, gear wall 3, driving wheel 4, guide rail 5, slider 6, guide groove 7, connecting rod 8, cylinder 9, rack 10, gear 11, aluminum row 12. DETAILED DESCRIPTION

[0031] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.

[0032] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.

[0035] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.

[0036] Example:

[0037] A positioning tool for aluminum bar welding, reference Figure 1 As shown, it includes: a lower tooth positioning row 1 and an upper tooth positioning row 2 that support the aluminum row 12, and a movement mechanism.

[0038] The lower tooth positioning row 1 and the upper tooth positioning row 2 both have a tooth wall 3 for fitting the bottom wall of the aluminum row and positioning the side wall of the aluminum row 12. The tooth wall 3 and the bottom wall are arranged vertically.

[0039] The tooth walls 3 are arranged at equal intervals along the length direction of the lower tooth positioning row 1 or the upper tooth positioning row 2 , and the intervals between adjacent tooth walls 3 of the lower tooth positioning row 1 and the upper tooth positioning row 2 are the same.

[0040] The end of the tooth wall 3 has a guide portion, and the farther away from the bottom wall, the thinner the guide portion is. The guide portion plays a guiding role, so that the tooth wall 3 of the upper tooth positioning row 2 can be inserted between the tooth wall 3 of the lower tooth positioning row 1 and the aluminum row 12, thereby squeezing the aluminum row 12 to one side to complete the positioning. The length of the tooth wall 3 is shorter than the thickness of the aluminum row 12.

[0041] The upper tooth positioning row 2 and the lower tooth positioning row 1 are arranged in a staggered manner. The staggered arrangement means that the tooth wall 3 of the upper tooth positioning row 2 points to between the two tooth walls 3 of the lower tooth positioning row 1.

[0042] The motion mechanism drives the upper tooth positioning row 2 to perform relative motion in the height direction and the length direction relative to the lower tooth positioning row 1 .

[0043] Ginseng Figure 2 As shown, the motion mechanism includes a driving wheel 4 that can rotate around a center, a guide rail 5 and a slider 6, the driving wheel 4 has a guide groove 7 arranged along the radial direction, the slider 6 is slidingly connected to the guide rail 5 and the guide groove 7 at the same time, the slider 6 is rotatably connected to the upper tooth positioning row 2, and the guide rail 5 is L-shaped.

[0044] The slider 6 comprises a first slider and a second slider, the first slider is slidably connected to the guide rail 5, the second slider is slidably connected to the guide groove 7, and the first slider and the second slider are hinged.

[0045] The friction coefficient of the tooth wall 3 is greater than that of the bottom wall. The structure provides friction force by clamping the lower tooth positioning row 1 and the upper tooth positioning row 2, thereby limiting the movement of the aluminum row 12 along its length direction.

[0046] In some embodiments, the power of the motion mechanism is provided in the form of rotation:

[0047] Specifically, the driving wheel 4 is driven by a stepper motor to reciprocate. After the stepper motor drives the driving wheel 4 to rotate by a preset angle, it is maintained for a certain period of time, and then reverses to reset and release the positioning of the aluminum bar 12.

[0048] In other embodiments, the power of the motion mechanism is provided in a linear form:

[0049] Ginseng Figure 4 As shown, the driving wheel 4 is driven by a cylinder 9, and a connecting rod 8 is radially penetrated on the driving shaft of the driving wheel 4, and the connecting rod 8 is slidably connected to the driving shaft, and the end of the connecting rod 8 is hinged to the extended end of the cylinder 9. The present application adopts a cylinder 9 drive which is easier to control, so that the telescopic end stroke of the cylinder 9 corresponds to the two stroke ends of the guide rail 5, so that the movement and positioning in two directions can be completed in a linear manner, and the implementation of the device is more intuitive.

[0050] Another way is:

[0051] Ginseng Figure 3 As shown, the driving wheel 4 is driven by a cylinder 9, a rack 10 arranged in the height direction is provided on the extended end of the cylinder 9, and a gear 11 is coaxially fixedly connected to the driving wheel 4, and the rack 10 and the gear 11 are meshed. The structure is implemented by means of the rack 10 and the gear 11.

[0052] The working process and principle of this embodiment are as follows:

[0053] When the driving wheel 4 rotates, the guide groove 7 rotates along the axis of the driving wheel 4; the guide groove 7 and the second slider inside rotate synchronously, and the second slider drives the first slider to move. Since the guide rail 5 is fixed and stationary, in order to adapt, the second slider moves in the length direction of the guide groove 7 in the direction away from the axis; in this process, the upper tooth positioning row 2 fixedly connected to the first slider, the second slider and the slider 6 shows a downward movement;

[0054] When the first slider reaches the bottom of the guide rail 5 and continues to rotate, the first slider moves laterally along the L-shaped guide rail 5, and the distance between the second slider and the axis gradually decreases, so it moves accordingly along the radial direction of the guide groove 7. Driven by the slider 6, the upper tooth positioning row 2 at this time moves in the length direction.

[0055] In some embodiments, the tooth wall 3 is a straight wall. In some embodiments, the aluminum row 12 is circular or elliptical, in which case the tooth wall 3 can also be curved.

[0056] Through pre-design, the travel of the driving wheel 4 is adapted to the guide rail 5, so that when it reaches the travel limit, the tooth wall 3 of the upper tooth positioning row 2 is pressed onto the tooth wall 3 of the lower tooth positioning row 1 through the aluminum row 12, and the bottom wall of the upper tooth positioning row 2 is pressed onto the bottom wall of the lower tooth positioning row 1 through the aluminum row 12. Positioning is completed in this way.

[0057] After waiting for the preset beat, the driving wheel 4 is reversed after the welding is completed. By repeating the reverse process of the aforementioned steps, the driving wheel 4 and the upper tooth positioning row 2 both reach the zero position, and the aluminum row 12 that has been welded is also released from the positioning. The aluminum row 12 is taken out manually, semi-automatically or fully automatically by a robot, and then the aluminum row 12 to be welded is put down for the next round of welding.

[0058] The lower tooth positioning row 1 and the upper tooth positioning row 2 position the aluminum rows 12, and the tooth walls 3 arranged at equal intervals make the spacing between the positioned aluminum rows 12 the same. The arrangement ensures that adjacent aluminum rows 12 that are heated and welded will not be connected or interfere with each other.

[0059] The movement in the height direction provided by the motion mechanism realizes the positioning of the aluminum row 12 in the height direction and restricts the aluminum row 12 from being separated from the tooth combs between the lower tooth positioning row 1 and the upper tooth positioning row 2. Then, through the relative movement in the left and right directions, the tooth wall 3 is fitted with the side wall of the aluminum row 12, and the friction force is generated by the pressing force to realize the restriction of each degree of freedom, complete the positioning of the aluminum row 12, and facilitate the subsequent welding.

[0060] The motion mechanism only includes a driving wheel 4 as a power source, and moves in the height direction first and then in the length direction through the cooperation of the guide rail 5 and the guide groove 7. The method can simplify control and reduce debugging, and reduce the cost of tooling.

[0061] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A positioning tool for aluminum bar welding, characterized in that: include: A lower tooth positioning row (1) and an upper tooth positioning row (2) for supporting the aluminum bar, wherein the lower tooth positioning row (1) and the upper tooth positioning row (2) both have tooth walls for fitting against the bottom wall of the aluminum bar and for positioning the side walls of the aluminum bar, wherein the tooth walls (3) are arranged at equal intervals along the length direction of the lower tooth positioning row (1) or the upper tooth positioning row (2), and the upper tooth positioning row (2) and the lower tooth positioning row (1) are arranged in a staggered manner; and a motion mechanism, wherein the motion mechanism drives the upper tooth positioning row (2) to move relative to the lower tooth positioning row (1) in a height direction and a length direction; The motion mechanism comprises a driving wheel (4) capable of rotating around a center, a guide rail (5) and a slider (6); the driving wheel (4) has a guide groove (7) arranged in a radial direction; the slider (6) is slidably connected to the guide rail (5) and the guide groove (7); the slider is rotatably connected to the upper tooth positioning row (2); and the guide rail (5) is L-shaped.

2. The positioning tool for aluminum bar welding according to claim 1 is characterized in that: The driving wheel (4) is driven by a stepping motor to reciprocate.

3. The positioning tool for aluminum bar welding according to claim 1 is characterized in that: The driving wheel (4) is driven by a cylinder (9). A connecting rod (8) is radially provided on the driving shaft of the driving wheel (4). The connecting rod (8) is slidably connected to the driving shaft. The end of the connecting rod (8) is hinged to the protruding end of the cylinder (9).

4. The positioning tool for aluminum bar welding according to claim 1 is characterized in that: The driving wheel (4) is driven by a cylinder (9), a rack (10) arranged along the height direction is provided on the protruding end of the cylinder (9), a gear (11) is coaxially fixedly connected to the driving wheel (4), and the rack (10) and the gear (11) are meshed.

5. The positioning tool for aluminum bar welding according to claim 1 is characterized in that: The end of the tooth wall (3) has a guide portion, and the farther away from the bottom wall, the thinner the guide portion becomes.

6. The positioning tool for aluminum bar welding according to claim 1 is characterized in that: The friction coefficient of the tooth wall (3) is greater than that of the bottom wall.

7. A positioning tool for aluminum bar welding according to any one of claims 1 to 6, characterized in that: The slider (6) comprises a first slider and a second slider, the first slider is slidably connected to the guide rail (5), the second slider is slidably connected to the guide groove (7), and the first slider and the second slider are hinged.

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