Servo torque type riveting device

Abstract

The utility model relates to a servo torque type riveting device which comprises a support, a servo torque type riveting device and a servo torque type riveting device. The riveting mechanism comprises a first direction driving piece, a second direction driving piece and a third direction driving piece, the output ends of the first direction driving piece, the second direction driving piece and the third direction driving piece are sequentially connected, the driving direction of the first direction driving piece is the same as the arrangement direction of the support, and the output end of the third direction driving piece is connected with a crimping assembly; the third direction driving part is used for driving the crimping assembly to move between the screw machine and the workpiece to be crimped; and the guide assembly comprises a first sliding block which is connected to the third direction driving piece in a sliding manner, and the first sliding block is connected with the end part of the crimping assembly. Through the arrangement, a torque mode is used for replacing a position mode for crimping, high-precision riveting can be realized by matching with the guide assembly, and meanwhile, the bracket occupies a small space and is suitable for a narrow space between production lines.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting devices, in particular to a servo torque type riveting device. Background Art

[0002] Rivet connection is a commonly used fixed connection method in mechanical processing, which has the advantages of low cost and high connection tightness. Existing rivet connection usually uses special equipment for stamping and riveting.

[0003] At present, with the increasing degree of automation in industrial production, riveting equipment is also moving towards automation. In the existing automated riveting equipment, the crimping products have high requirements on precision. The crimping in the position mode is easily affected by various factors, resulting in defective products, which greatly affects the production efficiency. At the same time, the riveting device body occupies a large space, which is not conducive to riveting in the narrow space between the production line docking. Utility Model Content

[0004] To this end, the technical problem to be solved by the utility model is to overcome the problems in the prior art that the riveting machine has low precision and the riveting device body occupies a large space, which is not conducive to riveting in the narrow space between the production line docking stations, thereby providing a servo torque riveting device.

[0005] In order to solve the above technical problems, the utility model provides a servo torque riveting device, comprising:

[0006] A bracket, one side of which is provided with a screw machine;

[0007] The riveting mechanism comprises: a first directional driving member, a second directional driving member and a third directional driving member, the output ends of which are sequentially connected, the driving direction of the first directional driving member is the same as the setting direction of the bracket, the output end of the third directional driving member is connected to a crimping assembly, and the third directional driving member is used to drive the crimping assembly to move between the screw machine and the workpiece to be crimped;

[0008] The guide assembly comprises: a first slider slidably connected to the third directional driving member, and the first slider is connected to the end of the crimping assembly.

[0009] In one embodiment of the utility model, the crimping assembly includes: a suction member connected to the third directional driving member, a straw connected to the end of the suction member, and a pressure head movably mounted on the straw, wherein the pressure head is connected to the first slider.

[0010] In one embodiment of the utility model, the guide assembly further includes: a sliding seat arranged on the third directional driving member, a first support body movably connected to the sliding seat, a locking member is arranged at the end of the first support body, and the pressure head is clamped in the locking member.

[0011] In an embodiment of the utility model, a guide portion is further provided at the end of the pressing head, and the guide portion is a tapered surface, and the diameter of the tapered surface gradually decreases toward the riveting direction.

[0012] In one embodiment of the utility model, the locking component is provided with a first groove body along a first direction, and the first groove body is a strip groove body opened on one side of the locking component. The locking component is provided with a second groove body along a third direction, and the size of the second groove body is adapted to the sleeve body. The second groove body is connected to the first groove body, and the first groove body and the second groove body both penetrate the locking component along the third direction.

[0013] In an embodiment of the present invention, the dimension of the guide portion close to the locking element is larger than the dimension of the second slot body.

[0014] In one embodiment of the present invention, the suction member is connected to one end of the negative pressure tube, and the other end of the negative pressure tube is externally connected to a negative pressure gas source.

[0015] In one embodiment of the utility model, a stopper is fixedly connected to one end of the first support body away from the locking member, a limiting member is provided between the stopper and the locking member of the first support body, and a movable space is provided between the limiting member and the first support body.

[0016] In one embodiment of the utility model, a visual component is also included, which includes: a visual camera connected to the output end of the second direction driving member, and a light source arranged on one side of the visual camera.

[0017] In one embodiment of the utility model, the bracket is further provided with a second support body along the first direction, the second support body is arranged on a side of the bracket close to the crimping assembly, the second support body is slidably connected to a second slider, the second direction driving member is provided with a support plate, and the support plate is slidably connected to the second slider.

[0018] The above technical solution of the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a servo torque type riveting device. When the third directional driving member drives the crimping assembly to move, the guide assembly provides guidance and support for the crimping assembly to improve the riveting accuracy and stability. During operation, the workpiece to be riveted is fixed, and the screw machine sends out the arranged screws. By adjusting the three sets of directional driving members, the crimping assembly absorbs the screws from the screw machine and moves them to align with the workpiece hole. Then the third directional driving member drives the crimping assembly to move in the direction of the screw and applies pressure. With the cooperation of the guide assembly, the screw is pressed into the workpiece to complete the riveting process. The riveting torque is controlled by the servo motor to obtain the ideal riveting quality. By using the torque mode instead of the position mode for crimping, high-precision riveting can be achieved in cooperation with the guide assembly. At the same time, the bracket occupies a small space and is suitable for the narrow space between production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0021] Figure 1 It is a three-dimensional diagram of the riveting device of the utility model;

[0022] Figure 2 It is a three-dimensional diagram of the riveting device of the utility model from another angle;

[0023] Figure 3 This is a front view of the riveting device of the utility model;

[0024] Figure 4 It is a three-dimensional diagram of the riveting mechanism of the utility model;

[0025] Figure 5 It is an exploded view of the riveting mechanism of the utility model.

[0026] Explanation of the reference numerals in the specification: 1. bracket; 2. first direction driving member; 3. second direction driving member; 4. third direction driving member; 5. visual camera; 6. light source; 7. screw machine; 8. support plate; 9. second support body; 10. second sliding block; 11. pressing head; 12. first trough body; 13. second trough body; 14. suction member; 15. limiting member; 16. stop member; 17. first support body; 18. locking member; 19. sliding seat; 20. straw. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example

[0028] Reference Figure 1-5As shown, a servo torque riveting device of the utility model comprises:

[0029] Bracket 1, one side of which is provided with a screw machine 7;

[0030] The riveting mechanism comprises: a first directional driving member 2, a second directional driving member 3 and a third directional driving member 4, the output ends of which are sequentially connected, the driving direction of the first directional driving member 2 is the same as the setting direction of the bracket 1, the output end of the third directional driving member 4 is connected to a crimping assembly, and the third directional driving member 4 is used to drive the crimping assembly to move between the screw machine 7 and the workpiece to be crimped;

[0031] The guide assembly comprises: a first slider slidably connected to the third directional driving member 4, and the first slider is connected to the end of the crimping assembly.

[0032] The utility model discloses a servo torque riveting device, wherein the screw machine 7 is used to provide screws for the workpiece to be riveted, the driving direction of the driving member in the first direction (left-right direction in the present embodiment) is the same as the setting direction of the bracket 1, and is used to adjust the position of the riveting mechanism on the bracket 1, and the driving member in the second direction (front-back direction in the present embodiment) can adjust the angle of the riveting mechanism relative to the bracket 1, so that the crimping assembly can be aligned with the hole position on the workpiece to be riveted. The third direction (in the present embodiment, the up and down direction) driving member is used to drive the crimping assembly to move between the screw machine 7 and the workpiece to be crimped to complete the riveting action. The crimping assembly absorbs the screw and cooperates to rivet the workpiece. When the third direction driving member 4 drives the crimping assembly to move, the guide assembly provides guidance and support for the crimping assembly to improve the riveting accuracy and stability. During operation, the workpiece to be riveted is fixed, and the screw machine 7 delivers the arranged screws. By adjusting the three sets of directional driving members, the crimping assembly absorbs the screws from the screw machine 7 and moves to align with the workpiece hole. Then the third direction driving member 4 drives the crimping assembly to move in the direction of the screw and applies pressure. With the cooperation of the guide assembly, the screw is pressed into the workpiece to complete the riveting process. The riveting torque is controlled by the servo motor to obtain the ideal riveting quality. By using the torque mode instead of the position mode for crimping, high-precision riveting can be achieved in cooperation with the guide assembly. At the same time, the bracket 1 occupies a small space and is suitable for the narrow space between production lines.

[0033] like Figure 4 , Figure 5As shown, the crimping assembly includes: a suction member 14 connected to the third directional driving member 4, a suction pipe 20 connected to the end of the suction member 14, and a pressure head 11 movably mounted on the suction pipe 20, wherein the pressure head 11 is connected to the first slider, and the crimping assembly includes the suction member 14, the suction pipe 20 and the pressure head 11, wherein the suction member 14 is used to provide suction, and the end of the suction pipe 20 generates a negative pressure area for adsorbing the screw, and the pressure head 11 is movably mounted on the suction pipe 20 and connected to the first slider, and is used to press the screw into the hole of the workpiece, and the suction member 14 adsorbs the screw sent by the screw machine 7 through the suction pipe 20. Driven by the third directional driving member 4, the crimping assembly moves toward the workpiece, and the pressure head 11 moves with the suction pipe 20, and finally presses the screw into the hole of the workpiece. After the riveting is completed, the suction is released, and the pressure head 11 is reset under the guidance of the first slider to prepare for the riveting of the next screw. The suction member 14 can use a vacuum generator to firmly adsorb the screw through vacuum suction. One end of the suction tube 20 is connected to the suction member 14, and the other end extends into the inner cavity of the pressure head 11. The pressure head 11 is replaceable, and the first slider not only guides the pressure head 11, but also prevents the pressure head 11 from shaking when adsorbing the screw, thereby improving the reliability of adsorption.

[0034] The guide assembly further includes: a sliding seat 19 disposed on the third directional drive member 4, a first support body 17 movably connected to the sliding seat 19, a locking member 18 is disposed at the end of the first support body 17, the pressure head 11 is clamped in the locking member 18, the sliding seat 19 is disposed on the third directional drive member 4, and the first support body 17 can slide along the driving direction of the third directional drive member 4 through the sliding seat 19. A locking member 18 is disposed at the end of the first support body 17, and the pressure head 11 of the crimping assembly is clamped and fixed in the locking member 18. When the third directional drive member 4 drives the crimping assembly to move, the first support body 17 slides on the third directional drive member 4 accordingly, driving the first slider and the pressure head 11 to move together. The locking member 18 can clamp the pressure head 11 to prevent the pressure head 11 from deflecting during the riveting process, thereby improving the riveting accuracy.

[0035] Continue to see Figure 4 , Figure 5 As shown, a guide portion is also provided at the end of the pressing head 11, and the guide portion is a tapered surface. The diameter of the tapered surface gradually decreases in the riveting direction. The guide portion is used to perform self-centering guiding and positioning on the concave surface of the workpiece during the riveting process. The design of the tapered surface also helps to reduce the friction during the riveting process and reduce the wear of the crimping assembly, thereby extending the service life of the equipment.

[0036] The locking member 18 may adopt a structure such as an elastic chuck or a buckle to facilitate the rapid replacement of the pressure head 11. In this embodiment, the locking member 18 is provided with a first slot 12 along a first direction, and the first slot 12 is a strip-shaped slot provided on one side of the locking member 18. The locking member 18 is provided with a second slot 13 along a third direction, and the size of the second slot 13 matches that of the sleeve. The second slot 13 is connected to the first slot 12, and the first slot 12 and the second slot 13 both penetrate the locking member 18 along the third direction. The first groove body 12 is opened along the first direction (i.e., perpendicular to the axial direction of the ram 11), and its size is adapted to the sleeve body of the ram 11 so that the locking member 18 can lock or release the ram 11 in the third direction through an elastic or snap-on mechanism. The first groove body 12 provides an elastic deformation space so that the locking member 18 can deform and lock the ram 11. The second groove body 13 is opened along the third direction (i.e., the axial direction of the ram 11) and is used to insert or pull out the part that matches the ram 11, so that the ram 11 can be axially installed or removed.

[0037] The dimension of the guide portion near the locking member 18 is larger than that of the second groove 13 . The locking member 18 limits the position of the pressing head 11 . When riveting, the pressing head 11 is completely sunk into the second groove 13 .

[0038] The suction piece 14 is connected to one end of the negative pressure tube, and the other end of the negative pressure tube is connected to an external negative pressure air source. When the riveting device starts working, the negative pressure air source is activated to generate negative pressure. The negative pressure is transmitted to the end of the suction tube 20 through the negative pressure tube and the suction piece 14, so that suction is generated at the end of the suction tube 20. The suction piece 14 uses the generated suction to suck the screw out of the screw machine 7 and keep the screw stable.

[0039] The first support 17 has one end away from the locking member 18 fixedly connected with a stopper 16 . The first support 17 is provided with a limiting member 15 between the stopper 16 and the locking member 18 . There is a movable space between the limiting member 15 and the first support 17 to limit the first support 17 .

[0040] It also includes a visual component, which includes: a visual camera 5 connected to the output end of the second direction driving member 3, and a light source 6 arranged on one side of the visual camera 5. The visual camera 5 is installed at the output end of the second direction driving member 3. Such an installation position enables the camera to clearly capture the image of the workpiece to be riveted. The task of the visual camera 5 is to capture the image information of the workpiece in real time and transmit this information to the control system. The control system analyzes the position, hole position and other necessary features of the workpiece based on the image information to ensure that the riveting device can accurately align the riveting position.

[0041] See also Figure 1-Figure 3As shown, the bracket 1 is also provided with a second support body 9 along the first direction, and the second support body 9 is arranged on the side of the bracket 1 close to the crimping assembly. The second support body 9 is slidably connected with a second slider 10, and the second direction driving member 3 is provided with a support plate 8, and the support plate 8 is slidably connected to the second slider 10. Since the bracket 1 is arranged in a strip shape along the first direction, while occupying a small space, the support for the second direction driving member 3 is also along the first direction, resulting in a smaller support range of the second direction driving member 3 in the second direction, which limits the range of movement of the second direction driving member 3. By increasing the cooperation of the second support body 9, the second slider 10 and the support plate 8, a longer distance of support is provided for the second direction driving member 3 in the second direction, thereby increasing the range of movement of the second direction driving member 3. At the same time, the bracket 1 is provided with anchor bolts connected to the ground to further prevent the bracket 1 from tipping over.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A servo torque riveting device, characterized in that: include: A bracket, one side of which is provided with a screw machine; The riveting mechanism comprises: a first directional driving member, a second directional driving member and a third directional driving member, the output ends of which are sequentially connected, the driving direction of the first directional driving member is the same as the setting direction of the bracket, the output end of the third directional driving member is connected to a crimping assembly, and the third directional driving member is used to drive the crimping assembly to move between the screw machine and the workpiece to be crimped; The guide assembly comprises: a first slider slidably connected to the third directional driving member, and the first slider is connected to the end of the crimping assembly.

2. A servo torque riveting device according to claim 1, characterized in that: The crimping assembly comprises: a suction member connected to the third directional driving member, a straw connected to the end of the suction member, and a pressure head movably sleeved on the straw, wherein the pressure head is connected to the first sliding block.

3. A servo torque riveting device according to claim 2, characterized in that: The guide assembly further comprises: a sliding seat arranged on the third directional driving member, and a first support body movably connected to the sliding seat, a locking member is arranged at the end of the first support body, and the pressing head is clamped in the locking member.

4. The servo torque riveting device according to claim 2, characterized in that: The end of the pressing head is also provided with a guide portion, and the guide portion is a tapered surface, and the diameter of the tapered surface gradually decreases toward the riveting direction.

5. The servo torque riveting device according to claim 3, characterized in that: The locking piece is provided with a first groove body along a first direction, and the first groove body is a strip groove body provided on one side of the locking piece. The locking piece is provided with a second groove body along a third direction, and the size of the second groove body is adapted to the sleeve body, and the second groove body is connected to the first groove body, and both the first groove body and the second groove body penetrate the locking piece along the third direction.

6. The servo torque riveting device according to claim 4, characterized in that: The dimension of the guide portion close to the locking element is larger than the dimension of the second slot body.

7. The servo torque riveting device according to claim 2, characterized in that: The suction piece is connected to one end of the negative pressure tube, and the other end of the negative pressure tube is externally connected to a negative pressure gas source.

8. The servo torque riveting device according to claim 5, characterized in that: A stopper is fixedly connected to one end of the first support body away from the locking member. A limiting member is arranged between the stopper and the locking member of the first support body. There is a movable space between the limiting member and the first support body.

9. The servo torque riveting device according to claim 1, characterized in that: It also includes a visual component, which includes: a visual camera connected to the output end of the second direction driving member, and a light source arranged on one side of the visual camera.

10. The servo torque riveting device according to claim 1, characterized in that: The bracket is also provided with a second support body along the first direction, the second support body is provided on a side of the bracket close to the crimping assembly, the second support body is slidably connected to a second slider, the second direction driving member is provided with a support plate, and the support plate is slidably connected to the second slider.

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