Double-station automatic riveting machine

Abstract

The utility model provides a double-station automatic riveting machine which comprises a machine frame, two sets of riveting mechanisms, a first rotary workpiece table and a second rotary workpiece table, the first rotary workpiece table and the second rotary workpiece table are used for rotating workpieces, a guide rail is arranged on the top face of the machine frame, and the two sets of riveting mechanisms are connected with the guide rail through sliding blocks respectively. The first rotary workpiece table and the second rotary workpiece table are oppositely distributed in front of and behind the two riveting mechanisms. The riveting machine solves the problem of how to improve the production efficiency of the riveting machine in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting processing, in particular to a double-station automatic riveting machine. Background Art

[0002] The existing riveting machine has only one set of workpiece tables. After the operator places the workpiece, the existing riveting machine starts riveting. At this time, the operator needs to wait for the riveting to be completed before continuing to the next step. For example, the operator repeats the previous steps to place the second workpiece, and then the existing riveting machine starts riveting the second workpiece. This cycle repeats, resulting in low production efficiency of the existing riveting machine.

[0003] Therefore, how to improve the production efficiency of riveting machines becomes a technical problem that needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to provide a double-station automatic riveting machine, which mainly solves the problem of how to improve the production efficiency of the riveting machine existing in the above-mentioned prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a double-station automatic riveting machine, characterized in that: the double-station automatic riveting machine includes a frame, two sets of riveting mechanisms, a first rotary workpiece table and a second rotary workpiece table for rotating the workpiece, wherein the top surface of the frame is provided with a guide rail, the two sets of riveting mechanisms are respectively connected to the guide rails through sliders, and the first rotary workpiece table and the second rotary workpiece table are relatively distributed in front and behind the two sets of riveting mechanisms.

[0006] Furthermore, each riveting mechanism includes a base plate, a gantry frame is provided on the base plate, the bottom opening of the gantry frame is connected to the base plate, a lower oil cylinder is provided on the base plate, the lower oil cylinder is connected to the lower riveting head, an upper oil cylinder is provided on the top of the gantry frame, the upper oil cylinder is connected to the upper riveting head, and the upper riveting head is located directly above the lower riveting head;

[0007] The bottom plate is connected to a slider.

[0008] Furthermore, the slider connected to the bottom plate of each riveting mechanism is connected to a set of screw nuts, and the screw nuts are connected to a third servo motor through a screw.

[0009] Furthermore, the first rotary worktable includes a first fixed plate, which is fixed to the frame by first adjusting screws on all sides. The first fixed plate is provided with a first servo motor, which is connected to one side of the two sets of riveting mechanisms and drives a first clamping mechanism for clamping the workpiece for rotation. The first servo motor controls the rotation of the first clamping mechanism.

[0010] The second rotary worktable includes a second fixed plate, which is fixed to the frame by second adjusting screws on all sides. A second servo motor is provided on the second fixed plate. The second servo motor is connected to one side of the two sets of riveting mechanisms to drive the second clamping mechanism that clamps the workpiece to rotate. The second servo motor controls the rotation of the second clamping mechanism.

[0011] Furthermore, the two sets of riveting mechanisms are respectively connected to the rivet feeding mechanism;

[0012] The upper and lower oil cylinders of the two riveting mechanisms are controlled and operated by the hydraulic station.

[0013] The hydraulic station, the rivet feeding mechanism, the first servo motor, the second servo motor and the third servo motor are all controlled and operated by the control mechanism.

[0014] In view of the above technical features, the utility model has the following beneficial effects:

[0015] 1. The utility model is a double-station automatic riveting machine. By adding a set of workpiece tables and moving the riveting mechanism back and forth, different workpieces can be processed in sequence on two sets of workpiece tables (i.e., the first rotary workpiece table and the second rotary workpiece table). The operator can use the riveting mechanism to rivet the gap of one workpiece to load and unload the workpiece on the other rotary workpiece table, which can double the production efficiency.

[0016] 2. The utility model is a double-station automatic riveting machine, in which the riveting mechanism includes a first riveting mechanism and a second riveting mechanism. The two sets of mechanisms are independent and move separately on the guide rail of the frame through the slider. The distance between the two can be freely adjusted to meet the processing requirements of different types of workpieces.

[0017] 3. The present invention relates to a dual-station automatic riveting machine, wherein the riveting mechanism comprises a first riveting mechanism group and a second riveting mechanism group. Each riveting mechanism group is formed by a gantry frame and a base plate. A lower oil cylinder is provided at the base plate and connected to a lower riveting head. An upper oil cylinder is provided at the top of the gantry frame and connected to an upper riveting head. The upper riveting head is located directly above the lower riveting head. Conventional C-shaped frames are prone to tilting and displacement during riveting due to reaction forces, resulting in poor riveting of the workpiece. However, the gantry frame is more stable during riveting, does not deform, and provides more reliable riveting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram (stereoscopic perspective) of a double-station automatic riveting machine in Example 1.

[0019] Figure 2 This is a structural schematic diagram of a double-station automatic riveting machine in Example 1 (from the main view angle).

[0020] Figure 3 This is a structural schematic diagram of a double-station automatic riveting machine in Example 1 (cross-sectional view perspective).

[0021] Figure 4 This is a schematic structural diagram of a double-station automatic riveting machine in Example 1 (top view).

[0022] Figure 5 Schematic diagram of the structure of the riveting machine in Example 1 (including the gantry frame).

[0023] Figure 6 It is a schematic diagram of the structure of a riveting machine in the prior art (including a C-shaped frame).

[0024] In the figure: 1, frame; 11, guide rail;

[0025] 2. First rotary table; 21. First fixed plate; 22. First adjusting screw; 23. First servo motor;

[0026] 3. Second rotary worktable; 31. Second fixed plate; 32. Second adjusting screw; 33. Second servo motor;

[0027] 4. First clamping mechanism;

[0028] 5. Second clamping mechanism;

[0029] 6. Hydraulic station;

[0030] 7. Rivet feeding mechanism;

[0031] 8. Riveting mechanism; 81. Bottom plate; 811. Slider; 82. Lower oil cylinder; 83. Lower riveting joint; 84. Gantry frame; 85. Upper oil cylinder; 86. Upper riveting joint; 87. First riveting mechanism group; 88. Second riveting mechanism group;

[0032] 9. Control cabinet;

[0033] 10. Workpiece;

[0034] 100. C-shaped frame. DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. It should also be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0036] See also Figures 1 to 5Specific embodiment 1, this embodiment 1 provides a double-station automatic riveting machine, which includes a frame 1, two sets of riveting mechanisms 8 (i.e., a first group of riveting mechanisms 87 and a second group of riveting mechanisms 88), a first rotary workpiece 10 and a second rotary workpiece 10 for rotating the workpiece 10, wherein a guide rail 11 is provided on the top surface of the frame 1, and the two sets of riveting mechanisms 8 are respectively connected to the guide rail 11 through a slider 811, and the first rotary workpiece 10 and the second rotary workpiece 10 are relatively distributed in front of and behind the two sets of riveting mechanisms 8.

[0037] Each set of riveting mechanisms 8 (two sets of riveting mechanisms 8 include the first set of riveting mechanisms 87 or the second set of riveting mechanisms 88) includes a base plate 81, a gantry frame 84 is provided on the base plate 81, and the gantry frame 84 is similar to an inverted U-shaped structure. The bottom opening of the gantry frame 84 is connected to the base plate 81, a lower oil cylinder 82 is provided on the base plate 81, and the lower oil cylinder 82 is connected to the lower riveting head 83. An upper oil cylinder 85 is provided on the top of the gantry frame 84, and the upper oil cylinder 85 is connected to the upper riveting head 86. The upper riveting head 86 is located directly above the lower riveting head 83; a slider 811 is connected to the bottom of the base plate 81. Compared with the C-shaped frame 100 of the existing riveting machine (see Figure 6 ), the gantry frame 84 is more stable during riveting, preventing deformation and ensuring higher quality riveting. The first riveting mechanism 87 and the second riveting mechanism 88 are independent and move independently on the guide rail 11 of the frame 1 via the slider 811. The spacing between the two mechanisms can be freely adjusted to meet the processing requirements of different sizes of workpieces 10.

[0038] The slider 811 (a screw slider can be used) connected to the base plate 81 of each set of riveting mechanisms 8 is connected to a set of screw nuts (not shown in the drawings), and the screw nuts are connected to a third servo motor (not shown in the drawings) through a screw. In this way, the position of the corresponding riveting mechanism on the guide rail 11 can be accurately controlled, that is, the distance between the two sets of riveting structures can be adjusted, and the distance between the two sets of riveting mechanisms and the first rotary workpiece table 2 and the second rotary workpiece table 3 can be adjusted respectively.

[0039] The first rotary worktable 2 includes a first fixed plate 21, which is fixed to the frame 1 by first adjusting screws 22 on all sides. The height of the first fixed plate 21 on the frame 1 is adjusted by the first adjusting screws 22. A first servo motor 23 is provided on the first fixed plate 21. The first servo motor 23 is connected to one side of the two sets of riveting mechanisms 8 and drives the first clamping mechanism 4 that clamps the workpiece 10 to rotate. The first servo motor 23 controls the rotation of the first clamping mechanism 4.

[0040] The second rotary worktable 3 includes a second fixed plate 31, which is fixed to the frame 1 by second adjusting screws 32 on all sides. The height of the second fixed plate 31 on the frame 1 is adjusted by the second adjusting screws 32. A second servo motor 33 is provided on the second fixed plate 31. The second servo motor 33 is connected to one side of the two sets of riveting mechanisms 8 to drive the second clamping mechanism 5 that clamps the workpiece 10 to rotate. The second servo motor 33 controls the rotation of the second clamping mechanism 5.

[0041] Both the first clamping mechanism 4 and the second clamping mechanism 5 can be pneumatic clamping devices.

[0042] The two sets of riveting mechanisms 8 are respectively connected to the rivet feeding mechanism 7. The rivet feeding mechanism 7 includes a rivet feeding tray. The rivet feeding tray feeds rivets to the riveting mechanism 8 through a conveying pipe. This is the existing technology and will not be discussed here.

[0043] The upper oil cylinder 85 and the lower oil cylinder 82 of the two riveting mechanisms 8 are controlled and operated by the hydraulic station 6. The hydraulic station 6, the rivet feeding mechanism 7, the first servo motor 23, the second servo motor 33 and the third servo motor are all controlled and operated by a control mechanism (such as a control cabinet 9).

[0044] The specific operation of the double-station automatic riveting machine of the present invention is that the operator first places the first workpiece 10 on the first rotating workpiece 10, and then the riveting mechanism 8 (two sets of riveting mechanisms 8) moves to the first rotating workpiece 10 to rivet the first workpiece 10. At this time, the operator can place the workpiece 10 on the second rotating workpiece 10. After the riveting mechanism 8 completes riveting the first workpiece 10 on the first rotating workpiece 10, the riveting mechanism 8 automatically moves to the second rotating workpiece 10 and rivets the second workpiece 10 on the second rotating workpiece 10. At this time, the operator can remove the first riveted workpiece 10 at the first rotating workpiece 10 and re-place the third workpiece 10, waiting for riveting, and repeat this process, which can double the production efficiency.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-station automatic riveting machine, characterized by: The double-station automatic riveting machine comprises a frame (1), two sets of riveting mechanisms (8), a first rotary workpiece table (2) and a second rotary workpiece table (3) for rotating a workpiece (10), wherein a guide rail (11) is provided on the top surface of the frame (1), the two sets of riveting mechanisms (8) are respectively connected to the guide rail (11) via sliders (811), and the first rotary workpiece table and the second rotary workpiece table are relatively distributed in front of and behind the two sets of riveting mechanisms (8).

2. The double-station automatic riveting machine according to claim 1, characterized in that: Each riveting mechanism (8) includes a base plate (81), a gantry frame (84) is provided on the base plate (81), a bottom opening of the gantry frame (84) is connected to the base plate (81), a lower oil cylinder (82) is provided on the base plate (81), the lower oil cylinder (82) is connected to the lower riveting joint (83), an upper oil cylinder (85) is provided on the top of the gantry frame (84), the upper oil cylinder (85) is connected to the upper riveting joint (86), and the upper riveting joint (86) is located directly above the lower riveting joint (83); The bottom plate (81) is connected to a slider (811).

3. The double-station automatic riveting machine according to claim 2, characterized in that: The slider (811) connected to the bottom plate (81) of each riveting mechanism (8) is connected to a set of screw nuts, and the screw nuts are connected to a third servo motor via a screw.

4. The double-station automatic riveting machine according to claim 3, characterized in that: The first rotary workpiece platform (2) includes a first fixed plate (21), the first fixed plate (21) is fixed to the frame (1) via first adjusting screws (22) on all sides, a first servo motor (23) is provided on the first fixed plate (21), the first servo motor (23) is connected to one side of the two riveting mechanisms (8) to drive a first clamping mechanism (4) for clamping the workpiece (10) to rotate, and the first servo motor (23) controls the rotation of the first clamping mechanism (4); The second rotary workpiece platform (3) includes a second fixed plate (31), which is fixed to the frame (1) via second adjusting screws (32) on all sides. A second servo motor (33) is provided on the second fixed plate (31). The second servo motor (33) is connected to one side of the two riveting mechanisms (8) to drive a second clamping mechanism (5) for rotating the clamped workpiece (10). The second servo motor (33) controls the rotation of the second clamping mechanism (5).

5. The double-station automatic riveting machine according to claim 4, characterized in that: The two sets of riveting mechanisms (8) are respectively connected to the rivet feeding mechanism (7); The upper oil cylinder (85) and the lower oil cylinder (82) of the two sets of riveting mechanisms (8) are both controlled and operated by the hydraulic station (6); The hydraulic station (6), the rivet feeding mechanism (7), the first servo motor (23), the second servo motor (33) and the third servo motor are all controlled and operated by the control mechanism.

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