Intelligent crimping equipment and crimping method for wiring terminal of die casting

Abstract

The invention discloses an intelligent crimping device and method for a wiring terminal of a die casting, and the crimping device comprises a conveying track which is used for conveying a terminal connecting ring of the die casting, and a feeding mechanism which is used for driving the feeding of the wiring terminal is arranged above the conveying track. A pressing mechanism used for pressing the buckling part is arranged above the conveying track and located at the downstream of the feeding mechanism; the method comprises the steps that the root of the first conducting ring is clamped, the first conducting ring is vertically stretched downwards and kept in the posture, when the terminal connecting ring passes through the position under the first conducting ring, the buckling part on the terminal connecting ring automatically penetrates into the first conducting ring, and along with continuous forward movement of the terminal connecting ring, the wiring terminal is automatically disengaged from the front section of the cylindrical rod body. The wiring terminal crimping device has the advantage of high wiring terminal crimping efficiency, personnel do not need to carry out buckling and crimping operation on the wiring terminal, the operation difficulty is small, the operation is very convenient, the personnel cost is greatly reduced, and hand and eye discomfort of an operator cannot be caused.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent production lines, and in particular to an intelligent crimping device for terminal blocks of die-cast parts and a crimping method for terminal blocks. Background Art

[0002] During the assembly process of some die-casting parts (such as wheel hubs) after production, it is necessary to connect and fix the terminal block with its terminal connection ring. Taking a certain type of wheel hub as an example, a certain terminal block 3 is connected to the terminal block 3. Figure 2 As shown, it includes a first conductive ring 4 and a second conductive ring 6 connected to both ends of the wire, and its terminal connecting ring 2 is as shown in FIG. Figure 1 As shown, it is an annular metal part with a buckle portion 5.

[0003] Currently, many wheel hub manufacturers manually connect the terminal to the terminal ring. Specifically, the operator grasps the terminal ring with their left hand and the terminal with their right hand, then slides the terminal's first conductive ring over the snap-fit portion (commonly known as a hanging terminal). The terminal ring is then placed on a crimping mechanism (press-fitting equipment) for crimping, securing the first conductive ring to the snap-fit portion. However, this method has numerous drawbacks: It's inefficient, with crimping a single terminal taking an average of 30 to 40 seconds, particularly for the hanging terminal, which can take approximately 30 seconds. It's also inconvenient, requiring the operator to focus and observe the matching position between the snap-fit portion and the first conductive ring from multiple angles. The operator also needs to pinch the base of the first conductive ring with their fingers during operation, and repeatedly grasping and releasing the terminal can easily lead to arm and finger soreness and eye fatigue. Summary of the Invention

[0004] At least in view of the problems mentioned in the background technology, the present invention aims to provide an intelligent terminal crimping device and a terminal crimping method for die-cast parts.

[0005] The present invention adopts the following technical solutions.

[0006] An intelligent crimping device for terminal blocks of die-cast parts includes a conveyor track for conveying terminal connection rings of die-cast parts. A feeding mechanism for driving the loading of terminal blocks is provided above the conveyor track. When the terminal connection ring moves forward along the conveyor track, the buckling portion on the terminal connection ring can just penetrate the first conductive ring of the terminal block in a straightened state. A pressing mechanism for pressing the buckling portion is provided above the conveyor track and downstream of the feeding mechanism.

[0007] Furthermore, the feeding mechanism includes a cylindrical rod body, the second conductive ring of the terminal is sleeved on the cylindrical rod body, a driving mechanism for driving the terminal to move forward intermittently is provided on the side of the rear section of the cylindrical rod body, and the front section of the cylindrical rod body is suspended in the air.

[0008] Furthermore, the rear section of the cylindrical rod body, the front section of the cylindrical rod body and the middle section of the cylindrical rod body are in a "Z" shape as a whole. With such a structure, the terminal block can be delivered to the target position more smoothly.

[0009] Preferably, the connection portion between the front section of the cylindrical rod body and the middle section of the cylindrical rod body is an arc-shaped transition structure.

[0010] Furthermore, the drive mechanism utilizes a screw drive mechanism, with a shift block mounted on the movable seat of the screw drive mechanism. The shift block engages the cylindrical rod. During operation, as the shift block moves forward synchronously with the movable seat, it pushes the terminal blocks suspended from the rear section of the cylindrical rod forward and down to the front section of the cylindrical rod. This structure allows for more accurate intermittent delivery of individual terminal blocks to their target locations.

[0011] Furthermore, a clamping mechanism is provided above the conveying track, the clamping mechanism is used to clamp the root of the first conductive ring of the terminal and straighten the terminal, and the clamping mechanism is installed on the three-dimensional moving mechanism.

[0012] Furthermore, a positioning piece is provided on the conveying track, and the terminal connecting ring is positioned after being sleeved on the positioning piece. In this state, the buckling portion on the terminal connecting ring is just located directly below the axis of the cylindrical rod body. Such a structure is conducive to the rapid and accurate crimping of the terminal.

[0013] Preferably, the length of the front section of the cylindrical rod body does not exceed 20 cm.

[0014] The terminal crimping method using the aforementioned intelligent terminal crimping device comprises the following steps: Step 1: Sleeve the terminal connection ring onto the positioning piece on the conveying track, and sleeve the second conductive ring of the terminal onto the rear section of the cylindrical rod, so that the terminal is in a hanging posture; Step 2: Control the conveyor track to run at a set speed so that the terminal blocks move forward along the conveyor track; Step 3: Control the feeding mechanism to push the terminal block suspended on the rear section of the cylindrical rod to the front section of the cylindrical rod; Step 4: Clamp the base of the first conductive ring and stretch it vertically downward while maintaining this posture. When the terminal connecting ring passes directly below the first conductive ring, the buckle on the terminal connecting ring automatically penetrates the first conductive ring. As the terminal connecting ring continues to move forward, the terminal automatically detaches from the front section of the cylindrical rod. Step 5: When the terminal connecting ring moves forward to the pressing station, the pressing mechanism is controlled to work and the buckle portion on the terminal connecting ring is pressed tightly.

[0015] Beneficial effects: The present invention has the advantage of high efficiency in crimping terminal blocks, and it takes an average of less than ten seconds to crimp one terminal block. The solution of the present invention does not require personnel to perform buckle and crimp operations on the terminal blocks, and the operation is easy and very convenient, which greatly reduces personnel costs and will not cause discomfort to the operator's hands and eyes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of the terminal connection ring in Example 1; Figure 2 Schematic diagram of the terminal terminal adapted for the terminal connection ring in Example 1; Figure 3 、 Figure 4 This is a three-dimensional schematic diagram of the intelligent crimping device for terminal blocks in Example 1; Figure 5 This is a schematic diagram of the main direction of the intelligent crimping device for terminal blocks in Example 1; Figure 6 This is a schematic diagram of the connection terminal being suspended on a cylindrical rod in Example 1; Figure 7 for Figure 2 A magnified schematic diagram of the middle part; Figure 8 This is a schematic diagram of a state in which four photoelectric sensors can simultaneously sense the wiring harness of the terminal, the first conductive ring, and the through hole of the first conductive ring; Figure 9 This is a schematic diagram of a state in which at least one photoelectric sensor does not sense a through hole. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0018] In this embodiment, the terminal 3 of a certain type of profile (typical die casting) is as follows Figure 2 As shown, it includes a first conductive ring 4 and a second conductive ring 6 connected to both ends of the wire, the axes of the first conductive ring 4 and the second conductive ring 6 are parallel to each other, and the terminal connecting ring 2 is as shown in FIG. Figure 1 The figure shows a ring-shaped metal part with a snap-fit portion 5. The snap-fit portion 5 is adapted to the first conductive ring 4. During the assembly process after the contour is formed, the first conductive ring 4 of the terminal 3 needs to be connected to the snap-fit portion 5 and pressed tightly. In this case, the intelligent terminal crimping device and method described in Example 1 can be used.

[0019] Combine Figures 3 to 7 As shown, an intelligent crimping device for terminal blocks of die-cast parts comprises a conveying track 1, which is used to convey the terminal connecting ring 2 of the die-cast part. A feeding mechanism for driving the terminal block 3 to load is provided above the conveying track 1. When the terminal connecting ring 2 moves forward along the conveying track 1, the buckling portion 5 on the terminal connecting ring 2 can just penetrate into the first conductive ring 4 of the terminal block 3 in a vertically stretched state; a pressing mechanism 7 for pressing the buckling portion 5 is provided above the conveying track 1 and downstream of the feeding mechanism. The pressing mechanism 7 comprises a vertically arranged cylinder, and a pressure plate is provided at the end of the telescopic rod of the cylinder. When the terminal connecting ring 2 moves to be directly below the pressure plate, the cylinder works and drives the pressure plate to press the terminal connecting ring 2 downward.

[0020] In this embodiment, the feeding mechanism comprises a cylindrical rod 10, onto which the second conductive ring 6 of the terminal 3 is mounted. A drive mechanism for intermittently moving the terminal 3 forward is located to the side of the rear section 13 of the cylindrical rod, while the front section 14 of the cylindrical rod is suspended. The rear section 13, front section 14, and middle section 15 of the cylindrical rod form a "Z"-shaped structure. The axis of the front section 14 is parallel to the movement trajectory of the fastening portion 5 on the terminal connecting ring 2. The connection between the front section 14 and the middle section 15 forms an arc-shaped transition structure. The length of the front section 14 is 20 cm. Among them, the driving mechanism adopts a screw transmission mechanism, and a shift block 12 is provided on the movable seat 11 of the screw transmission mechanism, and the shift block 12 is used to cooperate with the cylindrical rod body 10; during the operation of the driving mechanism, when the shift block 12 moves forward synchronously with the movable seat 11, the shift block 12 pushes the terminal 3 suspended on the rear section 13 of the cylindrical rod body to move forward and fall to the front section 14 of the cylindrical rod body.

[0021] In this embodiment, a clamping mechanism 8 is provided above the conveying track 1. The clamping mechanism 8 is used to clamp the root of the first conductive ring 4 of the terminal 3 and straighten the terminal 3. The clamping mechanism 8 is mounted on a three-dimensional movable mechanism. The three-dimensional movable mechanism is used to precisely adjust the clamping position of the clamping mechanism 8. A number of positioning members 9 are fixedly provided at intervals on the conveying track 1. The positioning members 9 are used in conjunction with the terminal connecting ring 2. The terminal connecting ring 2 is positioned after being mounted on the positioning members 9. In this state, the buckle 5 on the terminal connecting ring 2 is located just below the axis of the cylindrical rod 10. In this embodiment, four photoelectric sensors 16 and their main units are also provided directly in front of or behind the cylindrical rod 10. The four photoelectric sensors are parallel to each other and arranged horizontally. When the terminal 3 is in a vertically straightened state, the four photoelectric sensors (photoelectric sensor A16, photoelectric sensor B17, photoelectric sensor C18, photoelectric sensor D19) can simultaneously sense the wiring harness 20 of the terminal 3, the first conductive ring 4, and the through hole 21 of the first conductive ring 4 (its state is as shown in FIG. 1 ). Figure 8As shown), when the terminal block 3 is in a non-vertical stretched state, at least the photoelectric sensor B17 does not sense the through hole 21 (its state is as shown in FIG. Figure 9 As shown), the purpose of arranging the photoelectric sensor in this way is to detect whether the terminal 3 is accurately positioned, so that the connection of the terminal 3 can be achieved more smoothly.

[0022] The terminal crimping method using the terminal intelligent crimping device in this embodiment includes the following steps: Step 1, pre-install multiple terminal connection rings 2 on the positioning member 9 on the conveying track 1 (it should be noted that: since the pressing mechanism 7 in this example is located downstream of the feeding mechanism, when setting the positioning member 9 to face and place the terminal connection ring 2, it is necessary to ensure that the buckle portion 5 on the terminal connection ring 2 is open in the center and its direction is the same as the moving direction of the terminal connection ring 2, so as to ensure that the buckle portion 5 can penetrate the first conductive ring 4 of the terminal 3). Specifically, the second conductive ring 6 of the terminal 3 is installed on the rear section 13 of the cylindrical rod body, so that the terminal 3 is in a hanging posture. The state at this time is as follows Figure 6 As shown, although the terminal block 3 is in a suspended state at this time, it is not in a straight state; Step 2: Control the conveyor track 1 to run at a set speed, so that the terminal block 3 moves forward along the conveyor track 1 at the set speed; Step 3: Control the feeding mechanism to push the terminal block 3 suspended on the rear section 13 of the cylindrical rod to the front section 14 of the cylindrical rod. At this time, the single terminal block 3 is suspended on the front section 14 of the cylindrical rod but is not in a straightened state. Step 4, control the clamping mechanism 8 and the three-dimensional moving mechanism to work, clamp the root of the first conductive ring 4 and stretch it vertically downward and maintain this posture (in this process: after clamping the root of the first conductive ring 4, it is necessary to control the clamping mechanism 8 to move down a set distance to straighten the terminal 3). When the terminal connecting ring 2 passes directly below the first conductive ring 4, the buckle 5 on the terminal connecting ring 2 will automatically penetrate the first conductive ring 4 (the state at this time is as shown in FIG. Figure 7 As shown), as the terminal connecting ring 2 continues to move forward, the connecting terminal 3 automatically separates from the front section 14 of the cylindrical rod body, thereby achieving rapid separation of the connecting terminal 3 from the cylindrical rod body 10; In this step, after the clamping mechanism 8 and the three-dimensional moving mechanism move to the preset position, the photoelectric sensor is used to detect whether the terminal 3 is accurately positioned. If it is not accurately positioned, the clamping mechanism 8 is controlled to continue adjusting its posture / position so that the four photoelectric sensors (photoelectric sensor A16, photoelectric sensor B17, photoelectric sensor C18, photoelectric sensor D19) can simultaneously sense the wiring harness 20 of the terminal 3, the first conductive ring 4 and the through hole 21 of the first conductive ring 4 (the state of which is as shown in FIG. Figure 8 shown); Step 5: When the terminal connection ring 2 moves forward to the press-fitting station, the pressing mechanism 7 is controlled to work to press the buckle portion 5 on the terminal connection ring 2 tightly.

[0023] In the embodiment, the standard specification terminal 3 is suspended on a cylindrical rod 10 of a specific structure and then vertically stretched, and then the terminal connecting ring 2 is moved forward with the help of a positioning member 9 installed on the conveying track 1 with the aid of a limiter, so that the terminal 3 can be hung during the linear movement of the terminal connecting ring 2. This technical route combines the conveying process and the clamping process of the terminal connecting ring 2, greatly improving the convenience and efficiency of the crimping of the terminal, and can also achieve the straightening of the terminal.

Claims

1. An intelligent crimping device for terminal blocks of die-cast parts, comprising a conveying track (1), the conveying track (1) being used for conveying terminal connection rings (2) of die-cast parts, characterized in that: A feeding mechanism for driving the terminal block (3) to be loaded is provided above the conveying track (1); when the terminal connecting ring (2) moves forward along the conveying track (1), the buckle portion (5) on the terminal connecting ring (2) can just penetrate into the first conductive ring (4) of the terminal block (3) in a stretched state; and a pressing mechanism (7) for pressing the buckle portion (5) is provided above the conveying track (1) and downstream of the feeding mechanism.

2. The intelligent crimping device for terminal blocks according to claim 1, characterized in that: The feeding mechanism comprises a cylindrical rod body (10), a second conductive ring (6) of the connecting terminal (3) is sleeved on the cylindrical rod body (10), a driving mechanism for driving the connecting terminal (3) to move forward intermittently is arranged on the side of the rear section (13) of the cylindrical rod body, and the front section (14) of the cylindrical rod body is suspended.

3. The intelligent crimping device for terminal blocks according to claim 2, characterized in that: The cylindrical rod body rear section (13), the cylindrical rod body front section (14) and the cylindrical rod body middle section (15) are in a "Z"-shaped structure as a whole.

4. The intelligent crimping device for terminal blocks according to claim 2, characterized in that: The connection portion between the cylindrical rod body front section (14) and the cylindrical rod body middle section (15) is an arc-shaped transition structure.

5. The intelligent crimping device for terminal blocks according to claim 2, characterized in that: The driving mechanism adopts a screw transmission mechanism, and a shift block (12) is provided on a movable seat (11) of the screw transmission mechanism, and the shift block (12) is used to cooperate with the cylindrical rod body (10); during the operation of the driving mechanism, when the shift block (12) moves forward synchronously with the movable seat (11), the connecting terminal (3) suspended on the rear section (13) of the cylindrical rod body is pushed forward by the shift block (12) and falls to the front section (14) of the cylindrical rod body.

6. The intelligent crimping device for terminal blocks according to claim 1, characterized in that: A clamping mechanism (8) is provided above the conveying track (1). The clamping mechanism (8) is used to clamp the root of the first conductive ring (4) of the terminal block (3) and straighten the terminal block (3). The clamping mechanism (8) is installed on the three-dimensional moving mechanism.

7. The intelligent crimping device for terminal blocks according to claim 1, characterized in that: A positioning member (9) is provided on the conveying track (1), and the terminal connecting ring (2) is positioned after being sleeved on the positioning member (9). In this state, the buckling portion (5) on the terminal connecting ring (2) is located just below the axis of the cylindrical rod body (10).

8. The intelligent crimping device for terminal blocks according to claim 1, characterized in that: The length of the front section (14) of the cylindrical rod body does not exceed 20 cm.

9. The terminal crimping method according to any one of claims 1 to 7, wherein the steps include: Step 1: sleeve the terminal connection ring (2) onto the positioning piece (9) on the conveying track (1), and sleeve the second conductive ring (6) of the connecting terminal (3) onto the rear section (13) of the cylindrical rod, so that the connecting terminal (3) is in a hanging posture; Step 2, controlling the conveying track (1) to run at a set speed, so that the terminal block (3) moves forward along the conveying track (1); Step 3, controlling the feeding mechanism to operate and push the terminal block (3) suspended on the rear section (13) of the cylindrical rod to the front section (14) of the cylindrical rod; Step 4, clamp the root of the first conductive ring (4) and stretch it vertically downward and maintain this posture. When the terminal connecting ring (2) passes directly below the first conductive ring (4), the buckle (5) on the terminal connecting ring (2) automatically penetrates the first conductive ring (4). As the terminal connecting ring (2) continues to move forward, the terminal (3) automatically detaches from the front section (14) of the cylindrical rod body. Step 5: When the terminal connecting ring (2) moves forward to the pressing station, the pressing mechanism (7) is controlled to work and the buckle portion (5) on the terminal connecting ring (2) is pressed tightly.

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