Double-gun semi-automatic riveting work station

Abstract

The utility model discloses a double-gun semi-automatic riveting work station which comprises an operation table and a machine frame, two manual riveting guns are arranged on the machine frame, a position changing machine is arranged on the operation table in a rotating mode, a workpiece clamp is installed on the position changing machine, two X-axis optical axes and two X-axis displacement rulers are arranged on the machine frame, and two Y-axis connecting frames are arranged on the two X-axis optical axes in a sliding and sleeved mode. The two ends of each Y-axis connecting frame are fixedly connected with X-axis sliding blocks of the X-axis displacement rulers respectively. A Y-axis optical axis and a Y-axis displacement ruler are fixedly arranged at the bottom of each Y-axis connecting frame, a Z-axis suspension arm is arranged on each Y-axis optical axis in a sliding and sleeving manner, and each Z-axis suspension arm is fixedly connected with a Y-axis sliding block of the corresponding Y-axis displacement ruler; each manual riveting gun is arranged on the corresponding Z-axis suspension arm in a sliding mode through the corresponding Z-axis sliding rail and the corresponding Z-axis sliding block, and a balancer is arranged at the upper end of each Z-axis suspension arm and connected with the corresponding manual riveting gun through an elastic rope of the balancer. According to the utility model, the phenomena of riveting missing and wrong riveting can be reduced, and the riveting precision and the riveting efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the field of riveting, in particular to a double-gun semi-automatic riveting workstation. Background Art

[0002] At present, the riveting of automobile plates or profiles is generally carried out using a riveting gun. In order to improve the riveting accuracy, some riveting devices will use a displacement ruler. For example, the invention published on June 18, 2021, with the publication number CN 112974718A, discloses a rivet riveting device suitable for castings and a height compensation riveting method. Through the corresponding settings of the XYZ axis servo, the riveting power head, the base plate clamp, and the rivet rod and the displacement ruler on the riveting power head, it can accurately realize the positioning and clamping of the casting to be riveted, and realize the determination of the relevant parameters of the rivet to be riveted before the riveting process, and then adaptively compensate for the riveting error introduced by the casting processing error, and accurately complete the riveting operation of the rivet. However, for some manual riveting workbenches, they are semi-automatic, and the operator rivets the riveted parts of the riveted workpiece in turn, and is not equipped with a displacement ruler. The manual riveting workbench will have the problem of missing rivets or wrong rivets; in addition, there is generally only one riveting gun, which is less efficient. Utility Model Content

[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a double-gun semi-automatic riveting workstation which can reduce the phenomenon of missed rivets and wrong riveting and improve the riveting accuracy and riveting efficiency.

[0004] In order to achieve the above purpose, one of the technical solutions adopted by the utility model is: a double-gun semi-automatic riveting workstation, including an operating table and a frame, the frame is fixed above the operating table, two manual riveting guns are arranged on the frame, a positioner is rotatably arranged on the operating table, a workpiece fixture is installed on the positioner, two X-axis optical axes and two X-axis displacement rulers are arranged on the frame, two Y-axis connecting frames are slidingly sleeved on the two X-axis optical axes, and the two ends of each Y-axis connecting frame are respectively connected and fixed with the slider of the X-axis displacement ruler; a Y-axis optical axis and a Y-axis displacement ruler are fixedly arranged at the bottom of each Y-axis connecting frame, a Z-axis arm is slidingly sleeved on the Y-axis optical axis, and the Z-axis arm is connected and fixed with the slider of the Y-axis displacement ruler; each of the manual riveting guns is slidably arranged on the Z-axis arm corresponding to it through a Z-axis slide rail and a Z-axis slider, and a balancer is arranged on the upper end of each Z-axis arm, and a hook is fixed on the top of the manual riveting gun, and the balancer is connected to the hook through its elastic rope.

[0005] The beneficial effects of the double-gun semi-automatic riveting workstation of the utility model are as follows: the application utilizes the coordinated setting of the X-axis displacement ruler and the Y-axis displacement ruler to accurately monitor the displacement distance and quantity of the movement of the manual rivet gun, and compares them with the pre-set riveting quantity and the displacement distance of the movement. If they are consistent, there is no missing rivet or wrong rivet phenomenon, thereby improving the accuracy of riveting; the setting of the balancer ensures the accuracy and quality of riveting; with two manual riveting guns, two operators can work at the same time, thereby improving the efficiency of riveting.

[0006] Preferably, a display and a controller are provided on the frame, the output ends of the X-axis displacement ruler and the Y-axis displacement ruler are respectively connected to the input end of the controller, the output end of the controller is connected to the display, and a riveting start button and a riveting completion button are provided on the operating table. The display shows the data of the actual riveting quantity and the preset riveting quantity, which is more intuitive.

[0007] Preferably, an alarm is provided on the frame, and the alarm is connected to the output end of the controller. After comparison, if the displacement distance and quantity of the manual rivet gun monitored are inconsistent with the pre-set riveting quantity and displacement distance, an alarm is sounded through the alarm.

[0008] Preferably, a front stopper and a rear stopper are fixed to the front and rear ends of the bottom of each Y-axis connecting frame to provide limits for the two manual riveting guns to prevent the manual riveting guns from sliding out of the frame.

[0009] Preferably, two handles are fixed on the manual riveting gun. The manual riveting gun can be operated with both hands, which makes the operation more stable and further ensures the quality of riveting.

[0010] Preferably, the X-axis displacement scale and the Y-axis displacement scale are magnetostrictive displacement transmitters, and the X-axis slider and the Y-axis slider are magnetic rings.

[0011] Preferably, the positioner includes a support frame rotatably arranged on an operating table and a servo motor for driving the support frame to rotate. The support frame is detachably provided with a workpiece fixture. The upper surface of the workpiece fixture is provided with a plurality of rotary clamping cylinders and a plurality of support seats. A pressure block is provided on the rotary clamping cylinder. The pressure block is located above the edge of the product and is arranged to be contoured. The support seat conforms to the bottom of the product. The support frame is used to lock the workpiece fixture. The workpiece fixture is used to fix the automotive workpiece to be riveted through the support seat and the rotary clamping cylinder. When one surface of the automotive workpiece is riveted, the servo motor is used to drive the support frame to rotate the automotive workpiece until its second riveted surface is located at the bottom of the two riveting guns, so as to achieve riveting of the second riveted surface until all the surfaces to be riveted are riveted.

[0012] Preferably, the support frame is equipped with multiple workpiece clamps, the support frame is provided with m bolt holes, each of the workpiece clamps is provided with n bolt holes, m and n are both natural numbers, and m≥n; when m=n, the n bolt holes correspond one-to-one with the m bolt holes, and are fixed by bolt locking; when m>n, the n bolt holes on the workpiece clamp can correspond one-to-one with the n bolt holes on the support frame, and are fixed by bolt locking.

[0013] Preferably, each of the workpiece fixtures is provided with a hollowing, and the hollowing corresponds to the part to be riveted on the back of the product. The hollowing is set with a yielding design, and with the drive of the servo motor, the back riveting can be performed without removing the automotive workpiece to be riveted from the workpiece fixture, which shortens the riveting time and improves the riveting efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional diagram of this embodiment;

[0015] Figure 2 A three-dimensional diagram of the cooperation between the frame and the manual riveting gun of this embodiment;

[0016] Figure 3 A bottom view of the frame and the manual riveting gun in this embodiment;

[0017] Figure 4 This is a three-dimensional diagram of the manual riveting gun and the Y-axis connecting frame in this embodiment;

[0018] Figure 5 A three-dimensional diagram of the manual riveting gun of this embodiment at a first angle;

[0019] Figure 6 A three-dimensional view of the manual riveting gun of this embodiment at a second angle;

[0020] Figure 7 A three-dimensional diagram of three sets of workpiece fixtures are provided for this embodiment.

[0021] In the figure:

[0022] 1. Operating table; 2. Rack; 3. Manual riveting gun; 4. Workpiece fixture; 5. X-axis optical axis; 6. X-axis displacement ruler; 6a. X-axis slider; 7. Y-axis connecting frame; 8. Y-axis optical axis; 9. Y-axis displacement ruler; 9a. Y-axis slider; 10. Z-axis boom; 11. Z-axis slide rail; 12. Z-axis slider; 13. Balancer; 14. Hook; 15. Display; 16. Front limiter; 17. Rear limiter; 18. Handle; 19. Support frame; 20. Servo motor; 21. Rotary clamping cylinder; 22. Support seat; 23. Pressure block; 24. Bolt hole; 25. Hollow; 26. Bolt; 27. Riveting start button; 28. Riveting completion button. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figure 1-Figure 7 As shown, this embodiment discloses a double-gun semi-automatic riveting workstation, including an operating table 1, a frame 2, the frame 2 is fixed above the operating table 1, two manual riveting guns 3 are arranged on the frame 2, a positioner is rotatably arranged on the operating table 1, a workpiece fixture 4 is installed on the positioner, two X-axis optical axes 5 and two X-axis displacement rulers 6 are arranged on the frame 2, two Y-axis connecting frames 7 are slidably sleeved on the two X-axis optical axes 5, and both ends of each Y-axis connecting frame 7 are respectively connected and fixed to the X-axis slider 6a of the X-axis displacement ruler 6 ; A Y-axis optical axis 8 and a Y-axis displacement scale 9 are fixedly arranged at the bottom of each Y-axis connecting frame 7, a Z-axis hanging arm 10 is slidably sleeved on the Y-axis optical axis 8, and the Z-axis hanging arm 10 is connected and fixed to the Y-axis slider 9a of the Y-axis displacement scale 9; each manual riveting gun 3 is slidably arranged on the corresponding Z-axis hanging arm 10 through a Z-axis slide rail 11 and a Z-axis slider 12, a balancer 13 is arranged on the upper end of each Z-axis hanging arm 10, a hook 14 is fixed on the top of the manual riveting gun 3, and the balancer 13 is connected to the hook 14 through its elastic rope.

[0025] like Figure 1 As shown, the rack 2 is provided with a display 15 and a controller, the output ends of the X-axis displacement ruler 6 and the Y-axis displacement ruler 9 are respectively connected to the input end of the controller, the output end of the controller is connected to the display 15, and a riveting start button 27 and a riveting completion button 28 are provided on the operating table. The display 15 is used to display the preset riveting position and the number of riveting. The riveting displacement and the number of riveting of each manual riveting gun 3 monitored in real time by the X-axis displacement ruler 6 and the Y-axis displacement ruler 9 are compared to see whether they are consistent. If they are consistent, the number and position of the riveting are correct. If they are inconsistent, an alarm 29 can be provided. The alarm 29 is fixed on the rack 2 and connected to the output end of the controller. The information is transmitted to the alarm through the controller, and the alarm is used to hold tightly to play a warning role to avoid missing or wrong riveting.

[0026] like Figure 4 As shown, a front stopper 16 and a rear stopper 17 are fixed to the front and rear ends of the bottom of each Y-axis connecting frame 7 to limit the moving range of the manual riveting gun 3. Figure 4-Figure 6 As shown, two handles 18 are fixed to the manual riveting gun 3 .

[0027] In this embodiment, the X-axis displacement scale 6 and the Y-axis displacement scale 9 are magnetostrictive displacement transmitters, and the X-axis slider 6a and the Y-axis slider 9a are magnetic rings. The magnetostrictive displacement transmitter is a prior art and will not be described in detail here.

[0028] like Figure 1 and Figure 7 As shown, the positioner includes a support frame 19 rotatably arranged on the operating table 1 and a servo motor 20 for driving the support frame 19 to rotate. A workpiece fixture 4 is detachably arranged on the support frame 19. A plurality of rotary clamping cylinders 21 and a plurality of support seats 22 are arranged on the upper surface of the workpiece fixture 4. A pressure block 23 is arranged on the rotary clamping cylinder 21. The pressure block 23 is located above the edge of the product and is arranged to be contoured. The support seat 22 is contoured to the bottom of the product.

[0029] like Figure 7 As shown, the support frame 19 can be equipped with multiple workpiece fixtures 4, but the support frame 10 can only be assembled and used with one of the workpiece fixtures 4 at a time, and m bolt holes 24 are provided on the support frame 19, and n bolt holes 24 are provided on each workpiece fixture 4, where m and n are both natural numbers, and m≥n; in this way, it can be ensured that multiple workpiece fixtures 4 of different lengths can be adapted to one support frame 19, without replacing the entire semi-automatic riveting workstation, thereby improving applicability.

[0030] When m=n, the n bolt holes 24 correspond to the m bolt holes 24 one by one and are locked and fixed by bolts 26. At this time, the length of the workpiece fixture 4 is consistent with the length of the support frame 19 and is completely matched.

[0031] When m>n, at this time, the length of the workpiece fixture 4 is smaller than the length of the support frame 19, and the bolt holes 24 on the workpiece fixture 4 correspond to the bolt holes 24 on the upper part of the support frame 19, that is, the n bolt holes 24 on the workpiece fixture 4 can correspond one by one to the n bolt holes 24 on the support frame 19, and are locked and fixed by bolts 16.

[0032] In addition, if Figure 7 As shown, each workpiece fixture 4 is provided with a hollow 25, and the hollow 25 corresponds to the position to be riveted on the back of the product.

[0033] The working principle of this embodiment is:

[0034] The rivet positions and quantities on the workpieces to be riveted are preset on the display 15 in advance, and the riveting start button 27 is activated. Two operators hold two manual riveting guns 3 in both hands and move in the X-axis and Y-axis directions to rivet the riveting positions of the workpieces. After one side is riveted, the servo motor 20 drives the support frame 19 to rotate until the second side to be riveted is turned upward. The two operators hold two manual riveting guns 3 in both hands and then rivet it. During the riveting process, the riveting positions and quantities monitored in real time are transmitted to the display 15 one by one until all the surfaces are riveted. Then, the riveting completion button 28 is pressed to compare the pre-set riveting positions and quantities to see if they are consistent. If they are inconsistent, an alarm is triggered. If they are consistent, no alarm is triggered, indicating that the riveting is correct and the phenomenon of missed rivets and wrong rivets is reduced.

[0035] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A double-gun semi-automatic riveting workstation, comprising an operating table (1) and a frame (2), wherein the frame (2) is fixed above the operating table (1), two manual riveting guns (3) are arranged on the frame (2), a positioner is rotatably arranged on the operating table (1), and a workpiece fixture (4) is installed on the positioner, characterized in that: Two X-axis optical axes (5) and two X-axis displacement scales (6) are arranged on the frame (2); two Y-axis connecting frames (7) are slidably sleeved on the two X-axis optical axes (5); and two ends of each Y-axis connecting frame (7) are respectively connected and fixed to an X-axis slider (6a) of the X-axis displacement scale (6); A Y-axis optical axis (8) and a Y-axis displacement scale (9) are fixedly arranged at the bottom of each Y-axis connecting frame (7); a Z-axis suspension arm (10) is slidably sleeved on the Y-axis optical axis (8); and the Z-axis suspension arm (10) is connected and fixed to a Y-axis slider (9a) of the Y-axis displacement scale (9); Each of the manual riveting guns (3) is slidably arranged on a corresponding Z-axis suspension arm (10) via a Z-axis slide rail (11) and a Z-axis slider (12); a balancer (13) is arranged at the upper end of each Z-axis suspension arm (10); a hook (14) is fixed at the top of the manual riveting gun (3); and the balancer (13) is connected to the hook (14) via its elastic rope.

2. The double-gun semi-automatic riveting workstation according to claim 1 is characterized by: The frame (2) is provided with a display (15) and a controller, the output ends of the X-axis displacement ruler (6) and the Y-axis displacement ruler (9) are respectively connected to the input end of the controller, the output end of the controller is connected to the display (15), and the operating table is provided with a riveting start button (27) and a riveting completion button (28).

3. The double-gun semi-automatic riveting workstation according to claim 2 is characterized by: An alarm (29) is arranged on the frame (2), and the alarm (29) is connected to the output end of the controller.

4. The double-gun semi-automatic riveting workstation according to claim 1 is characterized by: A front stopper (16) and a rear stopper (17) are fixed to the front and rear ends of the bottom of each Y-axis connecting frame (7).

5. The double-gun semi-automatic riveting workstation according to claim 1 is characterized by: Two handles (18) are fixed on the manual riveting gun (3).

6. The double-gun semi-automatic riveting workstation according to claim 1 is characterized by: The X-axis displacement ruler (6) and the Y-axis displacement ruler (9) are magnetostrictive displacement transmitters, and the X-axis slider (6a) and the Y-axis slider (9a) are magnetic rings.

7. The double-gun semi-automatic riveting workstation according to claim 1 is characterized by: The positioner comprises a support frame (19) rotatably arranged on an operating table (1) and a servo motor (20) for driving the support frame (19) to rotate. The support frame (19) is detachably provided with a workpiece fixture (4). The upper surface of the workpiece fixture (4) is provided with a plurality of rotary clamping cylinders (21) and a plurality of support seats (22). A pressing block (23) is provided on the rotary clamping cylinder (21). The pressing block (23) is located above the edge of the product and is arranged to be contoured. The support seat (22) conforms to the bottom of the product.

8. The double-gun semi-automatic riveting workstation according to claim 7 is characterized by: The support frame (19) is equipped with a plurality of workpiece fixtures (4), the support frame (19) is provided with m bolt holes (24), each of the workpiece fixtures (4) is provided with n bolt holes (24), m and n are both natural numbers, and m≥n; When m=n, the n bolt holes (24) correspond to the m bolt holes (24) one by one and are locked and fixed by bolts (26); When m>n, the n bolt holes (24) on the workpiece fixture (4) can correspond one-to-one with the n bolt holes (24) on the support frame (19), and can be locked and fixed by bolts (26).

9. The double-gun semi-automatic riveting workstation according to claim 7 or 8, characterized in that: Each of the workpiece fixtures (4) is provided with a hollow (25), and the hollow (25) corresponds to a position to be riveted on the back of the product.

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