Annular curved surface riveting equipment

Abstract

The utility model discloses an annular curved surface riveting device which comprises a machine frame, a hollow rotating platform, a rotating seat, a riveting support, a base plate, a riveting head assembly, a limiting ring and a power mechanism, the hollow rotating platform is vertically installed on the machine frame, and the rotating seat is installed at the rotating end of the hollow rotating platform. A mounting hole used for containing a conical pipe is formed in the middle of the rotating seat, a base plate is arranged at the outer end of the mounting hole in a butt joint mode, a riveting hole used for allowing a product to penetrate through is formed in the middle of the base plate, and three sets of riveting head assemblies arranged around the riveting hole are installed on the base plate at equal angles. A limiting ring for driving the three groups of riveting head assemblies to synchronously contract towards the center or diffuse towards the periphery is rotationally mounted on the chassis; and a power mechanism for driving the limiting ring to rotate is mounted at the top of the rack. By means of the mode, the riveting head assembly can be synchronously driven to synchronously contract towards the center to rivet and press products or diffuse towards the periphery to loosen the products, and the products are driven to rotate till the annular curved surface is riveted and pressed in place.

Description

TECHNICAL FIELD

[0001] The utility model relates to riveting technical field, in particular to a kind of annular curved surface riveting equipment. BACKGROUND

[0002] Conical tube 01 one end press fits terminal stopper 02, need to rivet terminal stopper and conical tube together, avoid terminal stopper to separate from conical tube, conventional riveting equipment is mostly up-down structure, after riveting product is relatively fixed by positioning tooling, conical tube and terminal stopper connecting surface are closed rotary surface, ordinary riveting equipment cannot satisfy the riveting pressure requirement of this product, based on above defects and insufficient, it is necessary to improve existing technology, design a kind of annular curved surface riveting equipment. CONTENT OF UTILITY MODEL

[0003] The utility model mainly solves the technical problem to provide a kind of annular curved surface riveting equipment, can synchronous drive riveting head subassembly synchronous shrink to center and rivet product or diffuse loose product to four around, drive product rotation, until annular curved surface riveting is in place.

[0004] To solve the above technical problem, one technical scheme that the utility model adopts is as follows: provide a kind of annular curved surface riveting equipment, the annular curved surface riveting equipment includes rack, hollow rotating platform, servo motor, rotating seat, riveting support, chassis, riveting head subassembly, limit ring, baffle and power mechanism, the rack is vertically installed with hollow rotating platform, hollow rotating platform is driven to rotate by servo motor, rotating end of hollow rotating platform is installed with rotating seat, the rotating seat middle part is opened with the installation hole for placing conical tube, the workbench of installation hole outer end is installed with riveting support, riveting support is vertically installed with chassis, the middle part of chassis is opened with the riveting hole for passing through product, the equal angle of the chassis is installed with three groups riveting head subassembly around riveting hole, the limit ring that three groups riveting head subassembly are driven synchronous shrink to center or diffuse to four around is rotationally installed on the chassis, limit ring outer end is installed with baffle, rack top is installed with the power mechanism of driving limit ring rotation.

[0005] Preferably, the riveting head subassembly includes limit block, T-shaped block, riveting head, guide wheel and return spring, two limit blocks are fixed to the chassis, two limit blocks are slidably installed with T-shaped block between, T-shaped block lower end is rotationally installed with riveting head near riveting hole one end, the riveting head is in the shape of a gyroid and has an annular riveting convex surface at the outer end, a guide wheel is rotationally installed on the upper end of the T-shaped block and cooperates with the inner wall of the limit ring, and the T-shaped block extension portions on both sides are elastically connected with the limit blocks through return springs.

[0006] Preferably, the inner wall of the limit ring is an annular surface, three groups of retreat grooves connected with the annular surface are provided on the limit ring at equal angles, and the distance from the bottom surface of the retreat groove to the riveting hole is longer than the distance from the annular surface to the riveting hole.

[0007] Preferably, a displacement sensor is installed on the baffle, and a connecting piece opposite to the displacement sensor is installed on the T-shaped block of the riveting head assembly.

[0008] Preferably, the power mechanism comprises a rotating shaft, a motor, a cam and a connecting seat, the rotating shaft is rotatably installed on the top plate of the frame through a bearing seat, the rotating shaft is driven to rotate by the motor, the cam is installed on the motor, the connecting seat is rotatably installed at an eccentric position of the cam, a connecting part is arranged on the outer extension of the rotating surface of the limiting ring, the connecting part is rotatably connected with the connecting seat, and an encoder is further installed on the rotating shaft.

[0009] Preferably, the annular curved surface riveting equipment further comprises a protective cover, the protective cover is further installed on the frame, and the riveting head assembly, the limiting ring, the baffle and the power mechanism are all located in the protective cover.

[0010] Compared with the prior art, the annular curved surface riveting equipment has the following beneficial effects:

[0011] The limiting ring is rotatably connected with the riveting head assembly, so that the riveting head assembly can be synchronously driven to shrink towards the center to rivet the product or to diffuse to loosen the product;

[0012] The hollow rotating platform drives the product to be riveted to rotate until the riveting surface of the annular curved surface is riveted in place, and the riveting of the product is completed. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a structure diagram of a product to be riveted.

[0014] Fig. 2 It is a structure diagram of an annular curved surface riveting equipment.

[0015] Fig. 3 It is a structure diagram of an annular curved surface riveting equipment.

[0016] Fig. 4 It is a structure diagram of an annular curved surface riveting equipment.

[0017] 01, a conical pipe, 02, a terminal stopper;

[0018] 1, a frame, 2, a hollow rotating platform, 3, a servo motor, 4, a rotating seat, 5, a riveting support, 6, a chassis, 60, a riveting hole, 61, a cam follower, 7, a riveting head assembly, 71, a limiting block, 72, a T-shaped block, 73, a riveting head, 74, a guide wheel, 75, a return spring, 8, a limiting ring, 801, an annular surface, 802, a displacement return groove, 9, a baffle, 91, a displacement sensor, 92, a connecting piece, 10, a power mechanism, 101, a rotating shaft, 102, a motor, 103, a cam, 104, a connecting seat, and 11, a protective cover. DETAILED DESCRIPTION

[0019] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0020] Referring to Figs. 1 to 4 The present application comprises:

[0021] The annular curved surface riveting equipment comprises a rack 1, a hollow rotating platform 2, a servo motor 3, a rotating seat 4, a riveting support 5, a chassis 6, a riveting head assembly 7, a limiting ring 8, a baffle 9, a power mechanism 10 and a protective cover 11.

[0022] The rack 1 is installed on a workbench, a hollow rotating platform 2 is vertically installed on the rack 1, the hollow rotating platform 2 is driven to rotate by a servo motor 3, a rotating seat 4 is installed at the rotating end of the hollow rotating platform 2, a mounting hole for placing a conical pipe 01 is formed in the middle of the rotating seat 4, the middle of the hollow rotating platform 2 is provided with an inlet opening opposite to the mounting hole, a riveting support 5 is installed on the workbench at the outer end of the mounting hole, a chassis 6 is vertically installed on the riveting support 5, a riveting hole 60 for passing through a product is formed in the middle of the chassis 6, three groups of riveting head assemblies 7 are installed at equal angles on the chassis 6 and surround the riveting hole 60, a limiting ring 8 is rotatably installed on the chassis 6 and is in rotational cooperation with the riveting head assemblies 7, the limiting ring 8 is rotated to drive the three groups of riveting head assemblies 7 to synchronously shrink towards the center or diffuse towards the periphery, a baffle 9 is installed at the outer end of the limiting ring 8, a power mechanism 10 for driving the limiting ring 8 to rotate is installed on the top of the rack 1, a protective cover 11 is further installed on the rack 1, and the riveting head assemblies 7, the limiting ring 8, the baffle 9 and the power mechanism 10 all have their extending ends located in the protective cover 11.

[0023] The riveting head assembly 7 comprises limiting blocks 71, T-shaped blocks 72, riveting heads 73, guide wheels 74 and return springs 75, the two limiting blocks 71 are fixed to the chassis 6, the T-shaped blocks 72 are slidably installed between the two limiting blocks 71, the riveting heads 73 are rotatably installed at one end of the T-shaped blocks 72 close to the riveting hole 60, the riveting heads 73 are in the shape of a gyroid and are provided with annular riveting convex surfaces at the outer ends, the guide wheels 74 are rotatably installed at the upper ends of the T-shaped blocks 72 and are in cooperation with the inner wall of the limiting ring 8, and the two side extensions of the T-shaped blocks 72 are elastically connected to the limiting blocks 71 through the return springs 75.

[0024] The inner wall of the limiting ring 8 is an annular surface 801, three groups of retreat grooves 802 connected with the annular surface 801 are equiangularly arranged on the limiting ring 8, the distance from the bottom surface of the retreat groove 802 to the riveting hole 60 is longer than the distance from the annular surface 801 to the riveting hole 60, three groups of cam followers 61 in rolling connection with the inner wall of the limiting ring 8 are mounted on the chassis 6, when the limiting ring 8 rotates to the annular surface 801 in rolling contact with the guide wheel 74, the annular surface 801 applies a pressure to the T-shaped block 72, the T-shaped block 72 moves towards the riveting hole 60, the riveting head 73 rivets the product, the limiting ring 8 continues to rotate, when the retreat groove 802 is in rolling contact with the guide wheel 74, under the elastic force of the return spring 75, the T-shaped block 72 moves away from the riveting hole 60, and the riveting head 73 moves away from the product.

[0025] The displacement sensor 91 is mounted on the baffle 9, and a connecting sheet 92 opposite to the displacement sensor 91 is mounted on the T-shaped block 72 of one group of riveting head assemblies 7.

[0026] The power mechanism 10 comprises a rotating shaft 101, a motor 102, a cam 103 and a connecting seat 104, the rotating shaft 101 is rotatably mounted on the top plate of the rack 1 through a bearing seat, the rotating shaft 101 is driven to rotate by the motor 102, the cam 103 is mounted on the motor 102, the connecting seat 104 is rotatably mounted at the eccentric position of the cam 103, the connecting part 81 extending outward in a rotary manner is arranged on the limiting ring 8, the connecting part 81 is rotatably connected with the connecting seat 104, and the rotating shaft 101 is further provided with an encoder.

[0027] When the annular curved surface riveting equipment works, the conical pipe 01 and the terminal stopper 02 preassembled together are inserted into the mounting hole of the rotating seat 4, the connecting surface of the conical pipe 01 and the terminal stopper 02 is located between the three groups of riveting head assemblies 7, the power mechanism 10 drives the limiting ring 8 to rotate, when the limiting ring 8 rotates to the annular surface 801 in rolling contact with the guide wheel 74, the annular surface 801 applies a pressure to the T-shaped block 72, the T-shaped block 72 moves towards the riveting hole 60, the riveting head 73 rivets the product, the three groups of riveting head assemblies 7 are synchronously shrunk and riveted towards the center direction, after riveting is completed, the limiting ring 8 continues to rotate, when the retreat groove 802 is in rolling contact with the guide wheel 74, under the elastic force of the return spring 75, the T-shaped block 72 moves away from the riveting hole 60, and the riveting head 73 moves away from the product, at this time, the servo motor 3 drives the rotating seat 4 on the hollow rotating platform 2 to rotate, the rotating seat 4 drives the product to rotate by a certain angle, the riveting action is continued again, the above steps are repeated, and finally the connecting surface of the conical pipe 01 and the terminal stopper 02, i.e., the annular curved surface, is riveted in place, and the product is taken out.

[0028] The annular curved surface riveting equipment is characterized by ingenious design, and can drive the riveting head assembly to synchronously contract towards the center to rivet a product or to diffuse and loosen the product towards the periphery, drive the product to rotate, and rivet the annular curved surface in place.

[0029] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification and the attached drawing contents, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A ring-shaped curved surface riveting device, characterized in that: The system includes a frame (1), a hollow rotating platform (2), a servo motor (3), a rotating seat (4), a riveting bracket (5), a chassis (6), a riveting joint assembly (7), a limiting ring (8), a baffle (9), and a power mechanism (10). The hollow rotating platform (2) is vertically mounted on the frame (1). The hollow rotating platform (2) is driven to rotate by the servo motor (3). A rotating seat (4) is mounted on the rotating end of the hollow rotating platform (2). The rotating seat (4) has a mounting hole in the middle for placing a tapered tube (01). The worktable at the outer end of the mounting hole... A riveting bracket (5) is installed on the frame (1), and a chassis (6) is vertically installed on the riveting bracket (5). A riveting hole (60) for passing through the product is opened in the middle of the chassis (6). Three sets of riveting joint assemblies (7) are installed at equal angles around the riveting hole (60) on the chassis (6). A limiting ring (8) is rotatably installed on the chassis (6) to drive the three sets of riveting joint assemblies (7) to synchronously contract toward the center or spread outwards. A baffle (9) is installed at the outer end of the limiting ring (8). A power mechanism (10) for driving the limiting ring (8) to rotate is installed on the top of the frame (1).

2. The annular curved surface riveting device according to claim 1, characterized in that: The riveting assembly (7) includes a limiting block (71), a T-shaped block (72), a riveting head (73), a guide wheel (74), and a return spring (75). The two limiting blocks (71) are fixed on the chassis (6). The T-shaped block (72) is slidably installed between the two limiting blocks (71). The riveting head (73) is rotatably installed at the lower end of the T-shaped block (72) near the riveting hole (60). The riveting head (73) is in the shape of a rotating body and has an annular riveting protrusion at its outer end. The guide wheel (74) that cooperates with the inner wall of the limiting ring (8) is rotatably installed on the upper end of the T-shaped block (72). The extensions on both sides of the T-shaped block (72) are elastically connected to the limiting block (71) through the return spring (75).

3. The annular curved surface riveting device according to claim 2, characterized in that: The inner wall of the limiting ring (8) is an annular surface (801). Three sets of retraction grooves (802) connected to the annular surface (801) are provided at equal angles on the limiting ring (8). The distance from the bottom surface of the retraction groove (802) to the rivet hole (60) is longer than the distance from the annular surface (801) to the rivet hole (60).

4. The annular curved surface riveting device according to claim 1, characterized in that: A displacement sensor (91) is installed on the baffle (9), and a connecting piece (92) opposite to the displacement sensor (91) is installed on the T-shaped block (72) of a set of riveting joint assemblies (7).

5. The annular curved surface riveting device according to claim 1, characterized in that: The power mechanism (10) includes a rotating shaft (101), a motor (102), a cam (103), and a connecting seat (104). The rotating shaft (101) is rotatably mounted on the top plate of the frame (1) via a bearing seat. The rotating shaft (101) is driven to rotate by the motor (102). The cam (103) is mounted on the motor (102). The connecting seat (104) is rotatably mounted at the eccentric position of the cam (103). The rotating surface of the limiting ring (8) extends outward and is provided with a connecting part (81). The connecting part (81) is rotatably connected to the connecting seat (104). An encoder is also mounted on the rotating shaft (101).

6. The annular curved surface riveting device according to claim 1, characterized in that: It also includes a protective cover (11), which is installed on the frame (1). The riveting assembly (7), the limiting ring (8), the baffle (9) and the protruding ends of the power mechanism (10) are all located inside the protective cover (11).

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