A riveting device for sensor copper bushing

Abstract

The utility model provides a kind of riveting device of sensor copper bush, belong to mechanical technical field.It solves the riveting stability problem of existing copper bush when riveting is carried out.This sensor copper bush riveting device, including upper punch, lower punch and upper pressure plate and lower pressure plate, the riveting device of sensor copper bush further includes upper spring, lower spring, lower base and upper base, the upper side of lower base is fixed with lower stand, the upper end of lower stand passes through lower pressure plate, the lower side of upper base is fixed with upper stand, the lower end of upper stand passes through upper pressure plate, the two ends of upper spring are respectively abutted on upper pressure plate and upper punch, the two ends of lower spring are respectively abutted on lower pressure plate and lower punch, when upper pressure plate is driven to lower base and lower base by upper base and lower base, upper punch and lower punch can be respectively pushed into the processing hole by upper base and lower base.This sensor copper bush riveting device has the advantage that riveting stability is good.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a riveting device for a sensor copper sleeve. Background Technology

[0002] With the continuous development of the automotive industry, its level of electrification and automation is becoming increasingly higher. Sensors are detection devices that can sense the information being measured and transform the sensed information into electrical signals or other required forms of information output according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording and control, and are widely used in the automotive field.

[0003] A sensor typically includes a cable, a sensor head, a sensor end, and a copper sleeve fitted onto the sensor end. After the copper sleeve is fitted onto the outside of the sensor end, a fastening clamp is used to apply radial force to the outside of the copper sleeve, causing the copper sleeve to deform radially inward to be riveted to the sensor end.

[0004] When riveting existing copper bushings, workers need to hold them by hand, place them in the engagement part of the fastening fixture, and then manually operate the fastening fixture to apply force to complete the riveting process.

[0005] This riveting method is time-consuming and labor-intensive, has low processing efficiency, and the stability and effectiveness of the riveting are difficult to guarantee. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a riveting device for sensor copper sleeves, which solves the problem of poor riveting stability in existing copper sleeves.

[0007] The objective of this utility model can be achieved through the following technical solutions: A riveting device for a sensor copper sleeve includes an upper head, a lower head, and an upper and lower pressure plate, both plate-shaped and horizontally arranged. The bottom of the upper pressure plate has an upwardly recessed cavity, and the top of the lower pressure plate has a downwardly recessed cavity. The upper and lower cavities together form a machining hole for inserting the copper sleeve. The lower end of the upper head can pass through the upper pressure plate and extend into the upper cavity, and the upper end of the lower head can pass through the lower pressure plate and extend into the lower cavity. The device further includes an upper spring, a lower spring, a lower base, and an upper base with a top for connecting to the output end of a driving component. A vertically arranged lower column is fixed to the upper side of the lower base, and the upper end of the lower column passes through... The lower pressure plate and the upper end of the lower column have a lower limit part that prevents the lower pressure plate from detaching upward from the lower column. The lower side of the upper base is fixed with a vertically arranged upper column. The lower end of the upper column passes through the upper pressure plate and the lower end of the upper column has an upper limit part that prevents the upper pressure plate from detaching downward from the upper column. The two ends of the upper spring abut against the upper pressure plate and the upper top head respectively, and can cause the lower end of the upper top head to move up relative to the upper pressure plate and retract into the upper pressure block. The two ends of the lower spring abut against the lower pressure plate and the lower top head respectively, and can cause the upper end of the lower top head to move down relative to the lower pressure plate and retract into the lower pressure plate. When the upper base drives the upper pressure plate downward to approach the lower pressure plate, the upper base and the lower base can respectively push the upper top head and the lower top head into the machining hole.

[0008] During installation, the riveting device for the copper sleeve of this sensor allows the lower base to be fixed to the upper side of the worktable, with the upper base positioned directly above the lower base and the upper and lower pressure plates located between them. The top of the upper base can be connected to a driving component such as a cylinder. In the default state, the upper base rises under the drive of the driving component, moving away from the lower base. At this time, the lower spring acts on the lower pressure plate and the lower top head, causing the lower pressure plate to move upward and abut against the lower limit part, i.e., the lower pressure plate is at its highest position, and the lower top head moves downward, its upper end exiting the recessed cavity and retracting into the lower pressure plate. Similarly, under the elastic force of the upper spring and its own weight, the upper pressure plate is at its lowest position, and the lower end of the upper top head retracts into the upper pressure plate. The copper sleeve fitted onto the end of the sensor can be placed in the recessed cavity manually or by a robotic arm. The driving component drives the upper base downward until it abuts against the lower side of the upper pressure plate and the upper side of the lower pressure plate, and the upper and lower recessed cavities combine to form a machining hole that limits the movement of the copper sleeve. Afterwards, the driving component drives the upper base to continue moving downwards, so the positions of the upper and lower pressure plates remain unchanged. The upper and lower bases move closer to each other, and the upper base pushes the upper top head to move downwards against the elastic force of the upper spring. The lower base pushes the lower top head to move upwards against the elastic force of the lower spring. Then, the lower end of the upper top head and the upper end of the lower top head can simultaneously extend into the machining hole, applying a radially inward force to the outer wall of the copper sleeve, causing the copper sleeve to deform inwards, thus achieving riveting and fixing with the end of the sensor.

[0009] In the riveting device for the copper sleeve of this sensor, as long as the upper and lower structures are symmetrical, such as the specifications of the upper and lower top heads, the specifications and spring force coefficients of the upper and lower springs, and the specifications and positions of the upper and lower pressure plates, it can be ensured that the upper and lower sides of the copper sleeve are subjected to approximately the same force during riveting, thus ensuring the riveting effect. Furthermore, the structural design of the riveting device for the copper sleeve of this sensor allows the upper base to be directly connected to the driving component to achieve operation. The entire driving process is driven by the driving component, saving time and effort, and ensuring the stability of the movement direction and applied force of the upper and lower bases, thereby ensuring the stability of the riveting effect.

[0010] In the aforementioned riveting device for the sensor copper sleeve, there are two upper mandrels and two lower mandrels, distributed around the center line of the machining hole. These two upper and two lower mandrels form four riveting points circumferentially around the copper sleeve, ensuring the stability of the riveting effect.

[0011] In the aforementioned riveting device for the sensor copper sleeve, both the lower end of the upper mandrel and the upper end of the lower mandrel are conical. The conical ends facilitate the deformation of the sides of the copper sleeve, forming a stable riveting point.

[0012] In the aforementioned riveting device for the sensor copper sleeve, the upper base includes a flat, horizontally arranged upper base plate and upper top blocks fixed to the underside of the upper base plate. The number of upper top blocks is the same as the number of upper top heads, and they are arranged in a one-to-one correspondence. The upper end of the upper top head abuts against the upper top block under the elastic force of the upper spring. A protruding block-shaped upper top block is fixed on the upper base plate to support and push the upper top head, leaving a gap between other positions of the upper base plate and the upper pressure plate.

[0013] In the aforementioned riveting device for the sensor copper sleeve, both the upper and lower limiting portions are annular. The annular upper and lower limiting portions stably restrict the upper and lower pressure plates.

[0014] In the aforementioned riveting device for the sensor copper sleeve, an upper return spring is fitted onto the outer side of the upper column, with its two ends abutting against the upper base plate and the upper pressure plate, respectively. The upper return spring distributes the spring force of the upper spring, reducing its fatigue and thus ensuring the stability of the riveting.

[0015] Compared with existing technologies, the riveting device for the copper sleeve of this sensor utilizes the cooperation of an upper base, lower base, upper pressure plate, lower pressure plate, upper spring, lower spring, upper return spring, and lower return spring to ensure that the upper and lower sides of the copper sleeve are subjected to approximately the same force during riveting, thereby guaranteeing the riveting effect. Furthermore, the structural design of the riveting device allows the upper base to be directly connected to the driving component for operation. The entire driving process is driven by the driving component, saving time and effort, and ensuring the stability of the movement direction and applied force of the upper and lower bases, thus guaranteeing the stability of the riveting effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the riveting device for the copper sleeve of this sensor.

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the riveting device for the copper sleeve of this sensor.

[0018] Figure 3 This is a cross-sectional structural diagram of the column on the riveting device of the copper sleeve of this sensor.

[0019] In the diagram, 1. Upper top head; 2. Lower top head; 3. Upper pressure plate; 3a. Upper concave cavity; 4. Lower pressure plate; 4a. Lower concave cavity; 5. Upper spring; 6. Lower spring; 7. Lower base; 8. Upper base; 8a. Upper base plate; 8b. Upper top block; 9. Lower column; 9a. Lower limit part; 10. Upper column; 10a. Upper limit part; 11. Upper reset spring. Detailed Implementation

[0020] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the riveting device for the copper sleeve of this sensor includes an upper mold and a lower mold located directly below the upper mold. The upper mold and the lower mold have the same structure and are arranged symmetrically.

[0022] The upper mold includes an upper base 8, a vertically arranged rod-shaped upper column 10, a horizontally arranged plate-shaped upper pressure plate 3, a long rod-shaped upper ejector head 1, an upper spring 5, and an upper return spring 11. The upper base 8 includes a flat, horizontally arranged upper bottom plate 8a and block-shaped upper ejector blocks 8b fixed to the lower side of the upper bottom plate 8a. The number of upper ejector blocks 8b is the same as that of the upper ejector head 1, both being two in total, and they are arranged in a one-to-one correspondence.

[0023] There are four upper columns 10, which are arranged in a quadrilateral shape. The upper ends of the four upper columns 10 are fixed to the upper base plate 8a. The lower ends of the four upper columns 10 pass through the upper pressure plate 3 respectively. The outer side of the lower end of each of the four upper columns 10 has a protruding annular upper limit part 10a. The bottom of the upper pressure plate 3 is provided with a recessed upper limit hole. The upper limit part 10a can be retracted into the upper limit hole and the upper end surface of the upper limit part 10a can abut against the top wall of the upper limit hole to limit the upper pressure plate 3.

[0024] There are four upper return springs 11, which are fitted one-to-one on the outside of the four upper columns 10. The two ends of the four upper return springs 11 abut against the upper base plate 8a and the upper pressure plate 3 respectively, so that the upper limit part 10a always abuts against the top wall of the upper limit hole.

[0025] The bottom side of the upper pressure plate 3 has an upwardly recessed upper cavity 3a, which is used to cooperate with the lower cavity 4a recessed at the top of the lower pressure plate 4 to form a machining hole for inserting the copper sleeve.

[0026] There are two upper top heads 1, each with a larger diameter at the top than at the bottom. Both upper top heads 1 are inclined relative to the vertical direction, and their lower ends pass through the upper pressure plate 3 and extend into the upper recess 3a. The top of the upper pressure plate 3 has recessed holes around the two upper top heads 1. The number of upper springs 5 ​​is the same as the number of upper top heads 1, and they are fitted one-to-one on the outside of the two upper top heads 1. The upper ends of the upper springs 5 ​​abut against the heads of the upper top heads 1, and the lower ends of the upper springs 5 ​​abut against the bottom surface of the recessed holes. The upper top heads 1 can move upwards under the elastic force of the upper springs 5 ​​and abut against the lower side of the upper top block 8b, and their lower ends can retract into the upper pressure plate 3. In this embodiment, the lower end of the upper top head 1 is conical; the bottom of the upper top block 8b has a notch, the bottom surface of the notch is perpendicular to the axis of the upper top head 1, the head of the upper top head 1 can abut against the bottom surface of the notch, the bottom surface of the upper top block 8b is a plane, and the plane can abut against the upper side surface of the lower pressure plate 4.

[0027] The lower mold has a structure corresponding to the upper mold, including a lower base 7, a vertically arranged rod-shaped lower column 9, a horizontally arranged plate-shaped lower pressure plate 4, a long rod-shaped lower ejector head 2, a lower spring 6, and a lower return spring. The specific structure of the lower mold will not be described again.

[0028] When installing the riveting device for the copper sleeve of this sensor, the lower base 7 can be fixed on the upper side of the workbench, the upper base 8 can be placed directly above the lower base 7, and the upper pressure plate 3 and the lower pressure plate 4 can be located between the upper base 8 and the lower base 7. The top of the upper base 8 can be connected to the output end of a driving component such as a cylinder, so that the driving component can drive the upper base 8 to rise and fall.

[0029] In the default state, the upper base 8 rises under the drive of the drive unit, moving away from the lower base 7. At this time, the lower return spring acts between the lower pressure plate 4 and the lower base plate, causing the lower pressure plate 4 to move upward and abut against the lower limit part 9a, that is, the lower pressure plate 4 is in the highest position. The lower top head 2 moves downward under the elastic force of the lower spring 6, and its upper end exits the lower recess 4a and retracts into the lower pressure plate 4. Similarly, the upper pressure plate 3 is in the lowest position under the action of the upper return spring 11 and its own gravity, and the lower end of the upper top head 1 retracts into the upper pressure plate 3.

[0030] The copper sleeve, which is fitted onto the end of the sensor, can be placed manually or by a robotic arm into the recessed cavity 4a. The driving component drives the upper base 8 to move downwards to abut against the lower side of the upper pressure plate 3 and the upper side of the lower pressure plate 4. The upper recessed cavity 3a and the lower recessed cavity 4a combine to form a machining hole that limits the movement of the copper sleeve.

[0031] Subsequently, the driving component drives the upper base 8 to continue descending, while the positions of the upper pressure plate 3 and the lower pressure plate 4 remain unchanged. The upper base 8 and the lower base 7 compress the upper return spring 11 and the lower return spring, bringing them closer together. At the same time, the upper push block 8b on the upper base 8 pushes the upper push head 1 to move downward against the elastic force of the upper spring 5, and the lower push block on the lower base 7 pushes the lower push head 2 to move upward against the elastic force of the lower spring 6. Thus, the lower end of the upper push head 1 and the upper end of the lower push head 2 can simultaneously extend into the machining hole, applying a radially inward force to the outer wall of the copper sleeve, causing the copper sleeve to deform inward, thereby achieving riveting and fixing with the sensor end.

[0032] After riveting is completed, the driving component drives the upper base 8 to move upward, returning to the default state.

[0033] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A riveting device for a sensor copper sleeve, comprising an upper head (1), a lower head (2), and an upper pressure plate (3) and a lower pressure plate (4), both plate-shaped and horizontally arranged, wherein the bottom of the upper pressure plate (3) has an upwardly recessed upper cavity (3a), and the top of the lower pressure plate (4) has a downwardly recessed lower cavity (4a), the upper cavity (3a) and the lower cavity (4a) together form a machining hole for inserting the copper sleeve, the lower end of the upper head (1) can pass through the upper pressure plate (3) and extend into the upper cavity (3a), and the upper end of the lower head (2) can pass through the lower pressure plate (4) and extend into the lower cavity (4a), characterized in that, The riveting device for the sensor copper sleeve also includes an upper spring (5), a lower spring (6), a lower base (7), and an upper base (8) at the top for connecting to the output end of the drive component. A vertically arranged lower column (9) is fixed on the upper side of the lower base (7). The upper end of the lower column (9) passes through the lower pressure plate (4), and the upper end of the lower column (9) has a lower limiting part (9a) that can prevent the lower pressure plate (4) from coming off the lower column (9) upward. A vertically arranged upper column (10) is fixed on the lower side of the upper base (8). The lower end of the upper column (10) passes through the upper pressure plate (3), and the lower end of the upper column (10) has a limiting part (9a) that can prevent the upper pressure plate (3) from coming off the lower column (9). The upper spring (5) is dislodged downward from the upper limit position (10a) of the upper column (10). The two ends of the upper spring (5) abut against the upper pressure plate (3) and the upper top head (1) respectively, and the lower end of the upper top head (1) moves upward relative to the upper pressure plate (3) and retracts into the upper pressure block. The two ends of the lower spring (6) abut against the lower pressure plate (4) and the lower top head (2) respectively, and the upper end of the lower top head (2) moves downward relative to the lower pressure plate (4) and retracts into the lower pressure plate (4). When the upper base (8) drives the upper pressure plate (3) to move downward closer to the lower pressure plate (4), the upper base (8) and the lower base (7) can push the upper top head (1) and the lower top head (2) into the machining hole respectively.

2. The riveting device for the sensor copper sleeve according to claim 1, characterized in that, The number of upper mandrels (1) and lower mandrels (2) are both two, and the two upper mandrels (1) and the two lower mandrels (2) are distributed around the center line of the machining hole.

3. The riveting device for the sensor copper sleeve according to claim 1 or 2, characterized in that, The lower end of the upper head (1) and the upper end of the lower head (2) are both conical.

4. The riveting device for the sensor copper sleeve according to claim 2, characterized in that, The upper base (8) includes a flat and horizontally arranged upper base plate (8a) and an upper top block (8b) fixed to the lower side of the upper base plate (8a). The number of upper top blocks (8b) is the same as that of the upper top head (1) and the two are arranged in a one-to-one correspondence. The upper end of the upper top head (1) abuts against the upper top block (8b) under the elastic force of the upper spring (5).

5. The riveting device for the sensor copper sleeve according to claim 1 or 2, characterized in that, Both the upper limit portion (10a) and the lower limit portion (9a) are circular.

6. The riveting device for the sensor copper sleeve according to claim 4, characterized in that, An upper return spring (11) is sleeved on the outside of the upper column (10), and the two ends of the upper return spring (11) abut against the upper base plate (8a) and the upper pressure plate (3) respectively.

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