Motor terminal welding rapid placement jig

Abstract

The utility model relates to motor wiring terminal welding technical field, concretely relates to a kind of motor wiring terminal welding quick placement fixture. Including bottom plate, the upper surface rectangular array of the bottom plate is fixedly provided with several placing blocks. The utility model, when rotating screw rod, drive two sliders reverse movement in corresponding movable slot, the slider of movement drives the synchronous movement of the one end of each connecting rod, to make the other end of two connecting rods promote moving plate to be vertically moved under the guidance of placing block and through slot, when moving plate is down to the contact with the top surface of placing block, all insulation terminal block synchronously separates from the constraint of through slot, when this process avoids the damage that operator can clamp the non-welding area of insulation terminal block and take it from placing block, the welding stability of wiring terminal on insulation terminal block is guaranteed, the safe and efficient blanking of multiple insulation terminal blocks is realized.

Description

Technical Field

[0001] This utility model relates to the field of motor terminal welding technology, and more specifically, to a quick placement fixture for welding motor terminals. Background Technology

[0002] In the existing technology, motor production requires precise soldering of terminals onto insulating terminal blocks to establish a robust, low-resistance, and reliable electrical connection between the winding leads and the terminals, ensuring smooth current flow into the windings. Insulating terminal blocks are typically made of insulating materials such as bakelite or nylon boards and are fixed to the motor end cover or housing. Metal terminals are mounted on them, and the winding leads are soldered to these terminals. External power lines are also connected to these terminals.

[0003] To achieve stable welding, existing technologies generally employ a plate fixture with several placement slots. The shape and size of these placement slots are strictly matched with the insulating terminal block, ensuring that after the insulating terminal block is placed, the slot wall can fit tightly against its side wall, effectively restricting its horizontal movement. This design provides a stable positioning foundation for the welding equipment, ensuring that the wiring terminals can be accurately welded to the predetermined position of the insulating terminal block.

[0004] However, after welding, operators need to remove the insulating terminal blocks one by one from the placement slot of the fixture. Since the inner wall of the placement slot tightly restricts the insulating terminal blocks, operators must lift them vertically upwards to free them from the restriction of the slot wall. The current problem is that operators can only hold the limited part of the insulating terminal block that extends out of the upper side of the placement slot for lifting operations. This holding area is close to the welding point of the terminal block. This operation has obvious drawbacks: during the holding and lifting process, the operator's hands or tools can easily directly touch or squeeze the welded part between the insulating terminal block and the terminal block. This contact not only interferes with the microstructure of the welding point, but may also cause the welding point to loosen, deform or even crack due to improper external force, thereby directly affecting and weakening the stability, reliability and durability of the welded connection. Utility Model Content

[0005] The purpose of this invention is to provide a quick placement fixture for welding motor terminals, in order to solve the problems mentioned in the background art.

[0006] During clamping and lifting, the operator's hands or tools can easily touch or squeeze the welded area between the insulating terminal block and the wiring terminal, directly affecting and weakening the stability, reliability and durability of the welded connection.

[0007] To address the above problems, the present invention aims to provide a quick placement fixture for welding motor terminals, comprising a base plate, on which a plurality of placement blocks are fixedly arranged in a rectangular array on the upper surface of the base plate. A movable plate is provided above the base plate, and a through groove is provided on the movable plate at a position corresponding to each placement block. The upper end of the placement block is slidably disposed inside the corresponding through groove. The upper surface of the placement block and the inner wall of the corresponding through groove together enclose a placement space. A lifting mechanism is provided between the base plate and the placement blocks. The lifting mechanism is used to drive the movable plate to move vertically relative to the base plate. When the lifting mechanism drives the movable plate to move downward to contact the upper surface of the placement block, the upper surface of the placement block and the upper surface of the movable plate are flush.

[0008] As a further improvement to this technical solution, an embedded groove is provided in the middle of the lower surface of the movable plate, and two movable grooves are symmetrically provided on the upper surface of the base plate at the position corresponding to the embedded groove.

[0009] As a further improvement to this technical solution, the lifting mechanism includes two sliders that are slidably disposed inside two movable slots respectively. The upper surface of the sliders is hinged with an inclined connecting rod, and the other end of the connecting rod is hinged to the inner wall of the embedded slot. The two connecting rods are symmetrically distributed in a figure-eight shape.

[0010] As a further improvement to this technical solution, the lifting mechanism also includes a threaded rod rotatably mounted on the base plate. The threaded rod passes through two movable slots, and the two sliders are threadedly connected to the threaded rod in opposite thread directions. The two ends of the threaded rod extend from both sides of the base plate and are coaxially fixed with bolt heads.

[0011] As a further improvement to this technical solution, two handles are symmetrically fixedly installed on both sides of the base plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This motor-driven terminal welding quick placement fixture, when rotating the threaded rod, drives two sliders to move in opposite directions within their corresponding movable slots. The moving sliders drive one end of their respective connecting rods to move synchronously, thereby causing the other ends of the two connecting rods to push the moving plate vertically under the guidance of the placement block and the through slot. When the moving plate moves down to contact the top surface of the placement block, all insulating terminal blocks simultaneously disengage from the through slot. At this point, the operator can clamp the non-welding area of ​​the insulating terminal block and remove it from the placement block. This process avoids potential damage caused by the operator touching the welding points of the terminal blocks, ensures the welding stability of the terminal blocks on the insulating terminal blocks, and achieves safe and efficient unloading of multiple insulating terminal blocks. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the movable plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the base plate of this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Base plate; 11. Placement block; 12. Handle; 13. Movable groove;

[0020] 2. Movable plate; 21. Through groove; 22. Embedded groove;

[0021] 3. Lifting mechanism; 31. Sliding block; 32. Threaded rod; 33. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Please see Figure 1 , Figure 3 and Figure 4 As shown, the purpose of this embodiment is to provide a quick placement fixture for welding motor terminals, including a base plate 1. A plurality of placement blocks 11 are fixedly arranged in a rectangular array on the upper surface of the base plate 1. A movable plate 2 is arranged above the base plate 1. A through groove 21 is opened on the movable plate 2 at a position corresponding to each placement block 11. The upper end of the placement block 11 is slidably disposed in the corresponding through groove 21. The upper surface of the placement block 11 and the inner wall of the corresponding through groove 21 together form a placement space. The shape and size of the placement space match the insulating terminal block to be placed. When the insulating terminal block is placed in this placement space, the inner wall of the through groove 21 will contact the side wall of the insulating terminal block, thereby constraining its horizontal movement and ensuring that the insulating terminal block is stably placed on the fixture.

[0025] Two handles 12 are symmetrically fixed on both sides of the base plate 1. After the operator holds the handles 12 and moves the fixture to the predetermined position on the worktable of the welding equipment, the wiring terminals can be stably welded to the predetermined position of the insulating terminal block by the welding equipment.

[0026] By placing an insulating terminal block inside each placement space, the welding equipment's movable welding head can continuously weld the terminals inside multiple insulating terminal blocks, thereby improving welding efficiency.

[0027] After welding the motor terminals, the operator needs to remove the insulating terminal blocks one by one from their corresponding placement space. Since the insulating terminal blocks are constrained by the inner wall of the through groove 21, the operator needs to lift the insulating terminal blocks vertically to disengage them from the inner wall of the through groove 21. Since the operator can only hold the part of the insulating terminal block that extends out of the placement space to lift it, and this holding part is close to the welding point of the terminal block, it is easy to touch the welding position between the insulating terminal block and the terminal block, affecting the welding stability of the terminal block.

[0028] To solve the above problems, a lifting mechanism 3 is provided between the base plate 1 and the placement block 11. The lifting mechanism 3 is used to drive the moving plate 2 to move vertically relative to the base plate 1. When the lifting mechanism 3 drives the moving plate 2 to move downwards and contact the upper surface of the placement block 11, the upper surface of the placement block 11 and the upper surface of the moving plate 2 are flush. During this process, the insulating terminal block is always stably placed on the corresponding placement block 11 and will not move synchronously with the moving plate 2. Therefore, when the upper surface of the placement block 11 and the upper surface of the moving plate 2 are flush, all insulating terminal blocks are simultaneously disengaged from the inner wall of the through groove 21. At this time, the operator can hold the insulating terminal block away from the position of the terminal welding point (this position was previously blocked by the inner wall of the through groove 21) and remove the insulating terminal block from the placement block 11. This process avoids damage to the welding point caused by the operator touching the terminal welding point and ensures the welding stability of the terminal.

[0029] An embedded groove 22 is provided in the middle of the lower surface of the movable plate 2. Two movable grooves 13 are symmetrically provided on the upper surface of the base plate 1 at positions corresponding to the embedded groove 22. The structure of the lifting mechanism 3 is described in detail below, referring to... Figure 2 The lifting mechanism 3 includes two sliders 31 that are slidably disposed inside the two movable slots 13 respectively. The upper surface of the sliders 31 is hinged with an inclined connecting rod 33. The other end of the connecting rod 33 is hinged to the inner wall of the embedded slot 22. The two connecting rods 33 are symmetrically distributed in a figure-eight shape. The lifting mechanism 3 also includes a threaded rod 32 that is rotatably disposed on the base plate 1. The threaded rod 32 passes through the two movable slots 13. The two sliders 31 are threadedly connected to the threaded rod 32 with opposite thread directions. The two ends of the threaded rod 32 extend from both sides of the base plate 1 and are coaxially fixed with bolt heads.

[0030] When the operator uses a screwdriver or other tools to turn the bolt head and drive the threaded rod 32 to rotate, the threaded rod 32 is connected to the two sliders 31 by reverse threads, causing the two sliders 31 to move horizontally in opposite directions inside the corresponding movable grooves 13. The moving sliders 31 drive one end of the corresponding connecting rods 33 to move synchronously. Since the two connecting rods 33 are symmetrically distributed in a figure-eight shape and are set at an incline, the horizontal movement of the sliders 31 is converted into vertical movement through the lever action of the connecting rods 33. This causes the other end of the two connecting rods 33 to drive the moving plate 2 to move vertically under the guidance of the placement block 11 and the through groove 21. After the moving plate 2 is moved down to contact the upper surface of the placement block 11, several insulating terminal blocks can be quickly and safely unloaded.

[0031] Example 2

[0032] Unlike Embodiment 1, a small servo motor (model ECMA-C20604RS) is fixedly mounted on one side of the base plate 1 via a bracket. The output shaft of the small servo motor is coaxially fixedly connected to one end of the threaded rod 32 via a coupling. A controller (HR031 motion control module) and a battery (MR-BAT ER17330V) are fixedly installed on the upper side wall of the moving plate 2 near the edge. Both the controller and the battery are electrically connected to the small servo motor. The controller can control the forward and reverse rotation angle of the output shaft of the small servo motor. A push-button switch (Omron D2HW-C201M miniature sealed switch) is electrically connected to the controller. The battery powers the controller and the small servo motor, so that the device does not require an external power supply, ensuring its portability.

[0033] The operator presses the button on the push-button switch that controls the downward movement of the movable plate 2. This operation command is then received by the controller, which controls the output shaft of the small servo motor to rotate forward at a predetermined angle. The small servo motor drives the threaded rod 32 to rotate synchronously, thereby causing the movable plate 2 to automatically approach the base plate 1. After the movable plate 2 is moved down to contact the upper surface of the placement block 11, the controller automatically shuts down the small servo motor under the control of the preset program to avoid positional interference between the movable plate 2 and the base plate 1. This allows for the rapid and safe unloading of several insulating terminal blocks. After unloading several insulating terminal blocks, the operator presses the button on the push-button switch that controls the upward movement of the movable plate 2, causing the small servo motor to drive the movable plate 2 away from the base plate 1 and reset it, facilitating the subsequent placement and positioning of the insulating terminal blocks.

[0034] It should be noted that the principle of using push-button switches and controllers to control the rotation of small servo motors is existing technology, so it will not be elaborated here.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-placement fixture for welding motor terminals, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly provided with a rectangular array of several placement blocks (11). A movable plate (2) is provided above the base plate (1). A through groove (21) is provided on the movable plate (2) at a position corresponding to each placement block (11). The upper end of the placement block (11) is slidably disposed inside the corresponding through groove (21). The upper surface of the placement block (11) and the inner wall of the corresponding through groove (21) together enclose a placement space. A lifting mechanism (3) is provided between the base plate (1) and the placement block (11). The lifting mechanism (3) is used to drive the movable plate (2) to move vertically relative to the base plate (1). When the lifting mechanism (3) drives the movable plate (2) to move downward to contact the upper surface of the placement block (11), the upper surface of the placement block (11) and the upper surface of the movable plate (2) are flush.

2. The quick-placement fixture for welding motor terminals according to claim 1, characterized in that: An embedded groove (22) is provided in the middle of the lower surface of the movable plate (2), and two movable grooves (13) are symmetrically provided on the upper surface of the base plate (1) at the position corresponding to the embedded groove (22).

3. The quick-placement fixture for welding motor terminals according to claim 2, characterized in that: The lifting mechanism (3) includes two sliders (31) that are slidably disposed inside two movable slots (13). The upper surface of the slider (31) is hinged with an inclined connecting rod (33). The other end of the connecting rod (33) is hinged to the inner wall of the embedded slot (22), and the two connecting rods (33) are symmetrically distributed in a figure-eight shape.

4. The quick placement fixture for welding motor terminals according to claim 3, characterized in that: The lifting mechanism (3) also includes a threaded rod (32) rotatably mounted on the base plate (1). The threaded rod (32) passes through two movable slots (13). The two sliders (31) are threadedly connected to the threaded rod (32) in opposite thread directions. The two ends of the threaded rod (32) extend from both sides of the base plate (1) and are coaxially fixed with bolt heads.

5. The quick-placement fixture for welding motor terminals according to claim 1, characterized in that: Two handles (12) are symmetrically fixedly installed on both sides of the base plate (1).

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