Rotary table air cylinder spin riveting equipment

Abstract

The invention relates to the technical field of rotary table air cylinder spin riveting, in particular to rotary table air cylinder spin riveting equipment which comprises a box body, a spin riveting machine, a conveying system and a rotary disc and further comprises a fixing sleeve, a connecting mechanism, a mounting base, a clamping arm set, a driving rack, a reinforcing mechanism and a piston plate. The mounting base and the clamping arm set are both connected with the connecting mechanism, the driving rack is connected with the clamping arm set, the piston plate is connected with the reinforcing mechanism, when the conveying system places a workpiece on the mounting base, the mounting base and the workpiece descend synchronously under the action of pressure, and the connecting mechanism controls the clamping arm set to clamp the workpiece. When the clamping arm set clamps the workpiece, the reinforcing mechanism operates and controls the piston plates to move so as to generate negative pressure to adsorb the workpiece, by controlling the two clamping arms to move in the opposite direction and controlling the two piston plates to move in the opposite direction, the workpiece is adsorbed while being clamped, the stability of the workpiece rotating along with the rotating disc is improved, and the workpiece is prevented from loosening.

Description

Technical Field

[0001] This invention relates to the field of rotary table cylinder riveting technology, specifically rotary table cylinder riveting equipment. Background Technology

[0002] Rotary table cylinder riveting equipment is a type of riveting equipment that combines the functional characteristics of a rotary table and a cylinder to achieve efficient and precise riveting operations. It has a wide range of applications in various manufacturing fields. In the field of electronic equipment manufacturing, it can be used for riveting internal components of products such as mobile phones and laptops; in automobile manufacturing, it is suitable for riveting car seat frames, interior parts, etc.; and in the hardware parts processing industry, it is used for riveting various metal parts.

[0003] Traditional cylinder piston rod and piston assembly techniques mostly involve bolt tightening or stamping and riveting. Bolt tightening is prone to loosening and falling off during long-term cylinder operation, while stamping and riveting is noisy, has a high defect rate, and wastes energy.

[0004] To address the aforementioned problems, existing technologies provide a solution. For example, patent publication number CN210966818U provides an automatic riveting device for cylinder pistons. A middle support is installed on the upper part of the bottom support, and slide rails are provided on the inner sides of the middle supports on both sides. A piston tray, a piston rod positioning device, and a piston rod clamping device are slidably installed on the slide rails from bottom to top. A riveting motor is installed between the two bottom supports, and a piston tray lifting cylinder is installed on the upper part of the two bottom supports. The piston rod of the piston tray lifting cylinder is connected to the lower part of the piston tray. The piston rod positioning device is connected to the piston rod positioning device moving cylinder rod. A piston rod clamping cylinder is provided above the piston rod clamping device, and a pressure head is installed at the lower end of the piston rod of the piston rod clamping cylinder. This utility model of an automatic cylinder piston riveting equipment changes the traditional process of assembling cylinder piston rod and piston, improves cylinder operation stability, increases the yield rate of piston rod and piston assembly, saves energy, and reduces noise pollution. Existing devices generally place the workpiece in a fixed slot on the placement table, but there is no fixing device for the workpiece. When the turntable riveting equipment drives the workpiece to rotate, it is easy to generate centrifugal force. The workpiece is easy to shake under the action of centrifugal force, and may even detach from the placement table, which will affect the riveting effect of the workpiece. Summary of the Invention

[0005] To address the problems mentioned in the background section, the present invention provides the following technical solution.

[0006] The rotary table cylinder riveting equipment includes a housing, a riveting machine, a conveying system, and a rotary table. It also includes a fixed sleeve, a connecting mechanism, a mounting base, a clamping arm assembly, a drive rack, a reinforcing mechanism, and a piston plate. The fixed sleeve is connected to the rotary table, and the connecting mechanism is connected to the fixed sleeve. The mounting base and the clamping arm assembly are both connected to the connecting mechanism. The drive rack is connected to the clamping arm assembly, and the reinforcing mechanism is connected to the drive rack. The piston plate is connected to the reinforcing mechanism. When the conveying system places the workpiece on the mounting base, the mounting base descends synchronously with the workpiece under pressure. The connecting mechanism controls the clamping arm assembly to clamp the workpiece. When the clamping arm assembly clamps the workpiece, the reinforcing mechanism operates and controls the piston plate to move to generate negative pressure to adsorb the workpiece.

[0007] Optionally, the workpiece can be left unfixed or fixed when it is placed. If the workpiece is not fixed, it will become loose due to centrifugal force when it rotates with the turntable. Once the workpiece becomes loose or tilted, it will affect the riveting effect. Therefore, the workpiece needs to be riveted in a fixed state.

[0008] Preferably, the connecting mechanism includes a top rod, a vertical rod, a moving sleeve, a spiral pressure plate, a guide rod, a spur gear, a fixed rack, a limiting block, a limiting rod, and a connecting rod. The top rod, vertical rod, and guide rod are all connected to the fixed sleeve. The moving sleeve is connected to the vertical rod. The spiral pressure plate and the spur gear are both connected to the moving sleeve. The fixed rack cooperates with the spur gear. The limiting block and the connecting rod are both connected to the fixed rack. The limiting rod is connected to the limiting block.

[0009] Preferably, four push rods are arranged circumferentially, and each of the four push rods has a pressing part at its top end that cooperates with the spiral pressure plate.

[0010] Preferably, the maximum movement value of the moving sleeve is consistent with the spiral lead value of the spiral pressure plate, and the wrap angle of the spiral pressure plate is 330-345 degrees.

[0011] Preferably, the moving sleeve has a vertical hole inside, the vertical rod fits into the vertical hole, the height difference between the vertical hole and the vertical rod is equal to the spiral lead value of the spiral pressure plate, and the axes of the fixed sleeve, the moving sleeve, the vertical rod and the vertical hole coincide.

[0012] Preferably, there are two fixed racks and two connecting rods symmetrically arranged around the axis of the spur gear, and the connecting rods are L-shaped.

[0013] Preferably, a limiting groove is provided inside the mounting base, and both the limiting block and the limiting rod are installed inside the limiting block.

[0014] Preferably, the reinforcing mechanism includes a connecting gear, a receiving rack, and a connecting rod. The connecting gear engages with the driving rack, the receiving rack engages with the connecting gear, the connecting rod is connected to the receiving rack, and the piston plate is connected to the connecting rod.

[0015] Preferably, the driving rack and the receiving rack are symmetrical about the axis of the connecting gear, and two sets of driving rack and receiving rack are symmetrical about the center line of the mounting base.

[0016] Preferably, the top of the mounting base is provided with a through hole, the axis of the through hole coincides with the center of the mounting base, and a rubber ring is provided on the inner wall of the through hole.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. By controlling the downward pressure generated when placing the workpiece, the moving sleeve is rotated. At the same time, the two clamping arm assemblies are controlled to move in opposite directions with the moving sleeve to clamp the workpiece, thereby fixing the workpiece and preventing it from loosening due to centrifugal force when it follows the rotation of the turntable. This ensures that the workpiece is riveted in a balanced state, thus improving the riveting quality of the workpiece.

[0019] 2. When clamping the side wall of the workpiece, the two piston plates are controlled to move in opposite directions simultaneously to generate negative pressure in the mounting seat to adsorb the bottom of the workpiece. The rubber ring is used to improve the sealing between the workpiece and the mounting seat, thereby improving the fixation effect of the workpiece. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the fixing sleeve, connecting mechanism and reinforcing mechanism of the present invention;

[0022] Figure 3 This is a three-dimensional cross-sectional view of the fixing sleeve of the present invention;

[0023] Figure 4 This is a top cross-sectional view of the fixed sleeve and the moving sleeve of the present invention;

[0024] Figure 5 This is a schematic diagram of the main cross-sectional structure of the mounting base of the present invention;

[0025] Figure 6 This is a top sectional view of the mounting base of the present invention.

[0026] Figure 7 This is a top view of the structure of the present invention.

[0027] In the diagram: 1. Housing; 2. Riveting machine; 3. Conveying system; 4. Rotary disc; 5. Fixed sleeve; 6. Connecting mechanism; 61. Top rod; 62. Vertical rod; 63. Moving sleeve; 64. Spiral pressure plate; 65. Guide rod; 66. Spur gear; 67. Fixed rack; 68. Limiting block; 69. Limiting rod; 610. Connecting rod; 611. Extrusion section; 612. Vertical hole; 613. Limiting groove; 7. Mounting base; 8. Clamping arm assembly; 9. Drive rack; 10. Reinforcing mechanism; 101. Connecting gear; 102. Receiving rack; 103. Connecting rod; 104. Through hole; 105. Rubber ring; 11. Piston plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. However, the embodiments described below are only some embodiments of the present invention, and not all of them. If other embodiments are obtained by those skilled in the art without creative effort, they shall fall within the protection scope of the present invention.

[0029] Reference Figures 1 to 7 The rotary table cylinder riveting equipment includes a housing 1, a riveting machine 2, a conveying system 3, and a rotary disk 4. It also includes a fixed sleeve 5, a connecting mechanism 6, a mounting base 7, a clamping arm assembly 8, a drive rack 9, a reinforcing mechanism 10, and a piston plate 11. The fixed sleeve 5 is connected to the rotary disk 4, and the connecting mechanism 6 is connected to the fixed sleeve 5. The mounting base 7 and the clamping arm assembly 8 are both connected to the connecting mechanism 6. The drive rack 9 is connected to the clamping arm assembly 8, the reinforcing mechanism 10 is connected to the drive rack 9, and the piston plate 11 is connected to the reinforcing mechanism 10. When the conveying system 3 places the workpiece on the mounting base 7, the mounting base 7 descends synchronously with the workpiece under pressure. The connecting mechanism 6 controls the clamping arm assembly 8 to clamp the workpiece. When the clamping arm assembly 8 clamps the workpiece, the reinforcing mechanism 10 operates and controls the piston plate 11 to move to generate negative pressure to adsorb the workpiece.

[0030] As one embodiment of the present invention, refer to Figures 2 to 7The connecting mechanism 6 includes a top rod 61, a vertical rod 62, a moving sleeve 63, a spiral pressure plate 64, a guide rod 65, a spur gear 66, a fixed rack 67, a limiting block 68, a limiting rod 69, and a connecting rod 610. The top rod 61, the vertical rod 62, and the guide rod 65 are all connected to the fixed sleeve 5. The vertical rod 62 is a component of a press-type elastic self-locking mechanism. Through the above settings, the descent of the moving sleeve 63 can be locked, and the moving sleeve 63 can be controlled to reset after riveting, thereby controlling the separation of the clamping arm assembly 8 from the workpiece for easy workpiece collection. The moving sleeve 63 is connected to the vertical rod 62, and the spiral pressure plate 64... Both the spur gear 66 and the fixed rack 67 are connected to the moving sleeve 63. The fixed rack 67 cooperates with the spur gear 66. The limiting block 68 and the connecting rod 610 are both connected to the fixed rack 67. The limiting rod 69 is connected to the limiting block 68. Four push rods 61 are arranged circumferentially. Through the above arrangement, the stability of the spiral pressure plate 64 when descending is improved, so that the spiral pressure plate 64 is supported in four directions, avoiding the deviation of the moving sleeve 63 when moving. The top of each of the four push rods 61 is provided with a pressing part 611 that cooperates with the spiral pressure plate 64. Through the setting of the pressing part 611, the spiral pressure plate 64 is pressed when the moving sleeve 63 descends. This changes the vertical downward movement of the moving sleeve 63 to a simultaneous rotational descent. By changing the movement mode of the moving sleeve 63, the movement of the clamping arm assembly 8 is controlled. The maximum movement value of the moving sleeve 63 is consistent with the spiral lead value of the spiral pressure plate 64. The wrap angle of the spiral pressure plate is 330-345 degrees. Through the above settings, the lifting height of the moving sleeve 63 is limited, thereby limiting the movement length of the clamping arm assembly 8 to achieve clamping of workpieces within a certain width. The moving sleeve 63 has a vertical hole 612 inside, and the vertical rod 62 mates with the vertical hole 612. The height difference between the vertical hole 612 and the vertical rod 62, etc. Based on the spiral lead value of the spiral pressure plate 64, the movement of the upright 62 is limited by the above-mentioned settings to prevent the moving sleeve 63 from deflecting during lifting and lowering. The fixed sleeve 5, the moving sleeve 63, the upright 62 and the vertical hole 612 are aligned. The fixed rack 67 and the connecting rod 610 are symmetrically arranged in twos around the axis of the spur gear 66. With the above-mentioned settings, the fixed rack 67 is controlled to move towards each other to control the workpiece when the spur gear 66 rotates. The clamping arm assembly 8 is L-shaped for clamping the connecting rod 610. The mounting base 7 has a limit groove 613 inside, and the limit block 68 and the limit rod 69 are both installed in the limit block 68.

[0031] As one embodiment of the present invention, refer to Figures 5 to 7The strengthening mechanism 10 includes a connecting gear 101, a receiving rack 102, and a connecting rod 103. The connecting gear 101 engages with the driving rack 9, the receiving rack 102 engages with the connecting gear 101, the connecting rod 103 is connected to the receiving rack 102, and the piston plate 11 is connected to the connecting rod 103. The driving rack 9 and the receiving rack 102 are symmetrical about the axis of the connecting gear 101, and two sets of driving rack 9 and receiving rack 102 are symmetrically arranged about the center line of the mounting base 7. Through the above arrangement, when the clamping arm assembly 8 clamps, the two piston plates 11 are controlled to move in opposite directions under the action of pressure to generate negative pressure. The top of the mounting base 7 is provided with a through hole 104, the axis of the through hole 104 coincides with the center of the mounting base 7, and a rubber ring 105 is provided on the inner wall of the through hole 104. Through the above arrangement, the sealing between the workpiece and the mounting base 7 is improved, and gaps between the workpiece and the mounting base 7 are avoided. Negative pressure can be generated when the piston plate 11 moves in opposite directions to adsorb the workpiece.

[0032] Working principle: During use, the user places the workpiece on the mounting seat 7 through the conveying system 3. When the workpiece is placed on the mounting seat 7, pressure is generated, and the mounting seat 7 is controlled to descend under the action of pressure. When the mounting seat 7 descends, it drives the moving sleeve 63 to descend. When the moving sleeve 63 descends, it controls the upright rod 62 to close, so that the fixed sleeve 5 and the moving sleeve 63 are locked. When the moving sleeve 63 descends, it drives the spiral pressure plate 64 to descend synchronously and abut against the top rod 61. Under the effect of abutment, it drives the moving sleeve 63 to rotate. When the moving sleeve 63 rotates, it drives the two fixed racks 67 to move towards each other through the spur gear 66. When the fixed racks 67 move, they drive the limit block 68 to move on the limit rod 69 through the connecting rod 610, and at the same time drive the clamping arms to move towards each other to clamp the workpiece.

[0033] When the clamping arm moves, it drives the drive rack 9 to move. When the drive rack 9 moves, it drives the receiving rack 102 to move through the connecting gear 101. When the receiving rack 102 moves, it drives the two piston plates 11 to move in opposite directions through the connecting rod 103 to generate negative pressure, thereby adsorbing the workpiece. After the workpiece is fixed, it is driven to the bottom of the riveting machine 2 by the rotating disk 4. When the riveting machine 2 rivets the workpiece, it will exert downward pressure on the workpiece, thereby controlling the upright rod 62 to open, thereby controlling the workpiece to rise and reset, so that the workpiece is not fixed and it is convenient to collect the workpiece.

[0034] Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, those skilled in the art can make changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention. The appended claims and their equivalents define the scope of the present invention.

Claims

1. A rotary table cylinder riveting device, comprising a housing (1), a riveting machine (2), a conveying system (3), and a rotary table (4), characterized in that: It also includes a fixed sleeve (5), a connecting mechanism (6), a mounting base (7), a clamping arm assembly (8), a drive rack (9), a reinforcing mechanism (10), and a piston plate (11). The fixed sleeve (5) is connected to the rotating disk (4), the connecting mechanism (6) is connected to the fixed sleeve (5), the mounting base (7) and the clamping arm assembly (8) are both connected to the connecting mechanism (6), the drive rack (9) is connected to the clamping arm assembly (8), the reinforcing mechanism (10) is connected to the drive rack (9), and the piston plate (11) is connected to the reinforcing mechanism (10). When the conveying system (3) places the workpiece on the mounting base (7), the mounting base (7) descends synchronously with the workpiece under pressure, and the clamping arm assembly (8) is controlled by the connecting mechanism (6) to clamp the workpiece. When the clamping arm assembly (8) clamps the workpiece, the reinforcing mechanism (10) operates and controls the piston plate (11) to move to generate negative pressure to adsorb the workpiece.

2. The rotary table cylinder riveting equipment according to claim 1, characterized in that: The connecting mechanism (6) includes a top rod (61), a vertical rod (62), a moving sleeve (63), a spiral pressure plate (64), a guide rod (65), a spur gear (66), a fixed rack (67), a limiting block (68), a limiting rod (69), and a connecting rod (610). The top rod (61), the vertical rod (62), and the guide rod (65) are all connected to the fixed sleeve (5). The moving sleeve (63) is connected to the vertical rod (62). The spiral pressure plate (64) and the spur gear (66) are both connected to the moving sleeve (63). The fixed rack (67) cooperates with the spur gear (66). The limiting block (68) and the connecting rod (610) are both connected to the fixed rack (67). The limiting rod (69) is connected to the limiting block (68).

3. The rotary table cylinder riveting equipment according to claim 2, characterized in that: The top rod (61) is provided with four in the circumferential direction, and the top of each of the four top rods (61) is provided with a pressing part (611) that cooperates with the spiral pressure plate (64).

4. The rotary table cylinder riveting equipment according to claim 3, characterized in that: The maximum movement value of the moving sleeve (63) is consistent with the spiral lead value of the spiral pressure plate (64), and the wrap angle of the spiral pressure plate (64) is 330-345 degrees.

5. The rotary table cylinder riveting equipment according to claim 4, characterized in that: The moving sleeve (63) has a vertical hole (612) inside. The upright rod (62) is fitted with the vertical hole (612). The height difference between the vertical hole (612) and the upright rod (62) is equal to the spiral lead value of the spiral pressure plate (64). The axes of the fixed sleeve (5), the moving sleeve (63), the upright rod (62) and the vertical hole (612) coincide.

6. The rotary table cylinder riveting equipment according to claim 5, characterized in that: The fixed rack (67) and the connecting rod (610) are both arranged in two symmetrical positions around the axis of the spur gear (66), and the connecting rod (610) is L-shaped.

7. The rotary table cylinder riveting equipment according to claim 6, characterized in that: The mounting base (7) has a limiting groove (613) inside, and the limiting block (68) and the limiting rod (69) are both installed in the limiting block (68).

8. The rotary table cylinder riveting equipment according to claim 1, characterized in that: The reinforcing mechanism (10) includes a connecting gear (101), a receiving rack (102), and a connecting rod (103). The connecting gear (101) is engaged with the driving rack (9), the receiving rack (102) is engaged with the connecting gear (101), the connecting rod (103) is connected to the receiving rack (102), and the piston plate (11) is connected to the connecting rod (103).

9. The rotary table cylinder riveting equipment according to claim 8, characterized in that: The driving rack (9) and the receiving rack (102) are symmetrical about the axis of the connecting gear (101), and two sets of the driving rack (9) and the receiving rack (102) are symmetrical about the center line of the mounting base (7).

10. The rotary table cylinder riveting equipment according to claim 9, characterized in that: The top of the mounting base (7) is provided with a through hole (104), the axis of the through hole (104) coincides with the center of the mounting base (7), and a rubber ring (105) is provided on the inner wall of the through hole (104).

Images