A riveting device

Abstract

The riveting equipment includes a worktable; a riveting head disposed on the worktable; and a first station located on the worktable for riveting a first washer to the first side wall of the workpiece. The first station is characterized by having a first auxiliary mechanism that acts from top to bottom on the gap between two adjacent riveting holes in the first washer, aligning each riveting hole of the first washer with a rivet pre-installed on the first wall surface. This achieves the following: while preventing the first washer from warping or deforming, the height H of each rivet above the first washer always satisfies: 0.5mm ≤ H ≤ 1mm, thus ensuring a tight rivet connection. Furthermore, since the riveting holes are aligned with the rivets pre-installed on the first wall surface, deformation and movement of the first washer are avoided, reducing the possibility of burrs generated by friction between the riveting head and the edges of the riveting holes during the riveting process, and improving the yield rate of the workpiece.

Description

Technical Field

[0001] This invention relates to the field of riveting machinery and equipment, and more particularly to a riveting machine. Background Technology

[0002] In existing technologies, riveting is often used to join thin metal sheets. For example, a riveting machine is a tool used to perform riveting operations. Its structure can be referenced from the Chinese utility model patent disclosed in patent number CN202420129748.0 (publication number CN221817274U), entitled "A Riveting Machine". When using this riveting machine, the workpiece to be processed is placed on the worktable, and the drive motor drives the working rod to work on the workpiece. Since the rivet needs to be 0.5-1.0 mm higher than the connecting surface, if the rivet is too long above the connecting surface, the rivet head will be too large and the rivet shank will be easily bent; if the rivet is too short above the connecting surface, the upsetting amount will be insufficient, the rivet head will not be fully formed, and the riveting strength and tightness will be affected. Therefore, this riveting machine uses multiple clamping plates to hold the workpiece stably to prevent unstable movement of the workpiece during the riveting process, thereby ensuring the depth and force of each riveting point.

[0003] However, this riveting equipment is only suitable for workpieces with only one working surface. But, if the workpiece to be riveted is... Figure 1-2 The housing shown presents another assembly problem. This housing requires work on more than one surface, including a first sidewall 1' and a second sidewall 2', which are not on the same surface. A first gasket 3' needs to be riveted to the first sidewall 1', and a second gasket 4' needs to be riveted to the second sidewall 2'. The edge of the first sidewall 1' has a recessed step 11', which has a first wall surface 111' parallel to the first sidewall 1', and a second wall surface 112' connecting the first wall surface 111' and the first sidewall 1'. The first wall surface 111' is relatively narrow, and the first gasket 3' is riveted to this first wall surface 111'. The first gasket 3' is a long, thin strip. The device has multiple rivet points spaced along its length for rivets to pass through. If one rivet point is not aligned accurately, it will cause other rivet points to be misaligned, making it easy for the device to move during the riveting process and making it difficult to ensure the depth and force of each rivet point. Furthermore, it is prone to warping and deformation during the riveting process. If the first washer 3' warps and deforms, the rivet connecting the first washer 3' and the first side wall 1' will not be high enough above the first washer 3', resulting in a loose connection between the first washer 3' and the first side wall 1'. Even if the downward pressure of the riveting head is increased to press the first washer 3' and the first side wall 1' together, the deformation of the first washer 3' will be aggravated, reducing the yield rate of the product.

[0004] The second shim 4' is a thin sheet with a large central hollow area. The riveting point is located on the periphery of the hollow area, which is also prone to movement due to inaccurate positioning. Furthermore, due to the large central hollow area, it is easy to arch and deform during the riveting process. If the above-mentioned riveting equipment is used to process the workpiece, the following problems will exist: First, when riveting the first shim 3' to the first side 1', due to the long and thin characteristics of the first shim 3', it is easy to misposition or warp and deform during the processing. Second, since the first shim 3' needs to be riveted to the first wall surface 111', and the first wall surface 111' is relatively narrow, it is impossible to clamp the workpiece from both ends using the existing clamping plates. At the same time, the second wall surface 112' will also affect the clamping plate. Third, when riveting the second shim 4' to the second side 2', since the workpiece placement direction is different from that when processing the first side 1', different positioning fixtures need to be changed accordingly to meet the processing requirements of different sides 2'. If the positioning fixtures are changed repeatedly each time, a lot of time and effort will be wasted, reducing processing efficiency. At the same time, the characteristic that the center of the second shim 4' is prone to arching and deformation can also easily cause incomplete riveting or aggravate the deformation of the second shim 4', thus reducing the yield rate. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a riveting device that can avoid deformation of the shim during processing and ensure tight connection of the rivets, which is especially suitable for long strip-shaped thin shims and narrow working surfaces.

[0006] The second technical problem to be solved by the present invention is to provide a riveting device for workpieces that can reduce the workload of operators, especially suitable for workpieces with more than one working surface.

[0007] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: the riveting equipment includes...

[0008] Workbench;

[0009] A riveting head is mounted on the worktable;

[0010] The first station, located on the workbench, is used to rivet the first gasket to the first side wall of the workpiece to be worked on.

[0011] The first sidewall has a recessed step at its edge, the step having a first wall surface parallel to the first sidewall and a second wall surface connecting the first wall surface and the first sidewall. The first wall surface is relatively narrow and has multiple rivets. The first washer is a long strip of thin sheet, and the first washer has a rivet hole corresponding to each rivet. The first station is characterized by having:

[0012] The first auxiliary mechanism can act from top to bottom on the interval between two adjacent riveting holes in the first gasket, so that each riveting hole of the first gasket is aligned with the rivets preset on the first wall surface, thereby achieving the following: while avoiding the first gasket from warping and deforming, the height H of each rivet above the first gasket always satisfies: 0.5 mm ≤ H ≤ 1 mm.

[0013] Since the working surface of the first gasket is the first wall surface, i.e., it is set in the recessed step at the edge of the housing, and due to its narrow limitations, the first auxiliary mechanism can only be designed to be independent of the first wall surface and press down from top to bottom along the direction of the step. Furthermore, the first auxiliary mechanism includes:

[0014] The main body is mounted on the workbench;

[0015] A clamping member for pressing or pressing against the spacer segment corresponding to the first gasket includes at least two clamping members disposed on the top wall of the body. Each clamping member includes a head for pressing against the spacer segment of the first gasket, and the tail of each clamping member is connected to the power output end of the body through a connecting structure disposed in the body.

[0016] The hinge is also provided on the top wall of the main body, located between the head and the tail and can be hinged to the main body;

[0017] An adjusting component is provided on the head of each of the clamping components for adjusting the pre-pressure applied by the head to the interval of the first pad;

[0018] When the power output end of the power unit in the main body drives the connecting structure to move upward along the center line of the main body, each connecting rod of the connecting structure drives the head of the corresponding clamping member to rotate around the hinge part, and under the combined action of the power unit and the adjusting member in the main body, the head of each clamping member selectively presses against or abuts against the interval of the first pad.

[0019] Thus, by driving the heads of the corresponding clamping members to rotate around the hinge through the connecting rods of the connecting structure, the clamping members can act on the intervals of the first gasket from top to bottom, which is suitable for situations where the working surface is relatively narrow. Furthermore, since the first auxiliary mechanism is independently externally mounted on the first wall surface, unlike the existing "clamping mechanism" which acts directly on the first wall surface, when it acts on the first gasket, only the heads of the clamping members apply pre-pressure to the intervals of the first gasket with the help of the adjusting mechanism, thereby applying appropriate pre-pressure to each interval, pressing or abutting the first gasket in a point-contact manner, and avoiding deformation of the first gasket caused by the pre-pressure applied by the clamping members.

[0020] Further, the tails of the pressing members are connected to the connection structure by means of a connecting portion extending along the length direction of the first gasket, and the heads of the pressing members extend along a horizontal direction perpendicular to the center line of the body. Among them, on every other or more than one spaced segment of the first gasket, there are convex portions with a "Ji" - shaped cross - section, and each convex portion maintains a preset height from the first wall surface. The corresponding pressing members control the convex portions to only abut against them to control their warping deformation by means of their corresponding adjusting members. Due to the special design of the convex portions in the first gasket, if the pressing member presses on a spaced segment with a convex portion designed, the convex portion will bend downward due to pressure, and both sides of the convex portion will warp. Therefore, the adjusting member is a key design of the first auxiliary mechanism and needs to be adaptively adjusted to only abut against the convex portion without applying additional force to the convex portion.

[0021] Further, the heads of the pressing members are finger - shaped structures extending along a horizontal direction perpendicular to the center line of the body. The adjusting member protrudes from the heads of the pressing members towards the direction of the first wall surface and is constrained at the periphery of the adjusting holes in the heads of the pressing members, and its extending direction is parallel to the second wall surface, so as to enable the adjusting member to press or abut against the first gasket in a point - contact manner when moving up and down along the adjusting holes.

[0022] The applicant needs to emphasize that: due to the narrow limitations of the first wall surface, there is a lack of space required for the adjustment method of moving left - right or front - back of a "clamping mechanism" similar to the existing one directly acting on the first wall surface near the first wall surface. Therefore, while designing the pressing member into a finger - shaped structure, the adjustment method of the adjusting member is also designed to protrude from the heads of the pressing members towards the direction of the first wall surface. These two designs can achieve a technical effect of 1 + 1>2. First, it can enable the pressing member to press or abut against the first gasket from top to bottom in a point - contact manner like a finger by means of the adjusting member. Second, the adjusting member can move up and down in the adjusting hole to adjust the pressing member for the convex portion to only abut against the convex portion, while other pressing members can appropriately increase the pre - tightening force to press the spaced segment, so as to be adaptively adjusted according to the special design of the first gasket. In addition, the adjusting member adjusts the pre - pressure acting on the spaced segment in a "moving up and down" manner, avoiding the problem of occupying a large adjustment space in the existing solution that requires "moving left - right" or "moving front - back", and thus is well - suited for the first wall surface with narrow limitations.

[0023] In order to enable the adjusting member to adjust the pre - pressure of the head acting on the spaced segment of the first gasket, preferably, the adjusting member includes:

[0024] The adjusting screw extends parallel to the second wall surface. The lower end of the adjusting screw passes through the adjusting hole and can act on the interval of the first shim. The upper end of the adjusting screw protrudes above the screw hole for adjustment. The adjusting screw has external threads.

[0025] A nut, fixed on the adjusting hole, has an internal thread that mates with the external thread of the adjusting screw;

[0026] With the adjusting screw rotated relative to the nut, the adjusting screw can move up and down, thereby adjusting the preload applied by the head to the spacer section of the first washer, allowing the head to selectively press or abut against the spacer section of the first washer. In use, rotating the adjusting screw or adjusting nut to move the adjusting screw downward relative to the clamping member increases the preload applied by the head to the spacer section of the first washer, causing the head to press against the spacer section of the first washer; conversely, moving the adjusting screw upward relative to the clamping member decreases the preload applied to the spacer section of the first washer. When the adjusting screw just abuts against the spacer section of the first washer, the adjusting screw contacts the spacer section of the first washer without applying force.

[0027] To address the second technical problem mentioned above, preferably, the riveting equipment further includes a second station for riveting the second washer to the second sidewall of the workpiece to be processed. The second sidewall and the first sidewall are located on different working surfaces of the workpiece. The second washer is a thin sheet with a large central cutout area. The second station is located adjacent to the first station, and a second auxiliary mechanism is provided at the second station. The second auxiliary mechanism has the same mechanism as the first auxiliary mechanism. Only one clamping member is provided, which presses down on the center of the second washer. The second auxiliary mechanism can press down on the central cutout area of ​​the second washer, preventing the second washer from arching and deforming due to the large central cutout area.

[0028] Furthermore, it also includes:

[0029] The loading and unloading area includes a first loading and unloading position for loading or unloading workpieces to the first station, and a second loading and unloading position for loading or unloading workpieces to the second station.

[0030] The riveting area includes a first riveting position corresponding to the first station where the first washer is riveted to the first wall surface, and a second riveting position corresponding to the second station where the second washer is riveted to the second side wall surface, wherein the riveting head is located above the riveting area.

[0031] The first conveying component is arranged along the Y-axis direction of the worktable and is used to drive the first station to move along the Y-axis direction and convey the first station from the first loading / unloading position to the first riveting position. The riveting head can perform riveting operation on the first station when the first station is in the first riveting position. The first conveying component is also used to convey the first station back from the first riveting position to the first loading / unloading position.

[0032] The second conveying component, arranged in parallel with the first conveying component, is used to drive the second station to move along the Y-axis and to convey the second station from the second loading / unloading position to the second riveting position. The riveting head can perform riveting operations on the second station when the second station is in the second riveting position. The second conveying component is also used to convey the second station back from the second riveting position to the second loading / unloading position. The rotation paths of the first conveying component and the second conveying component are set in opposite directions for the operation sequence of the riveting head.

[0033] The third conveying component is arranged along the X-axis direction of the worktable. It is used to drive the riveting head to move along the X-axis direction and to convey the riveting head to the first riveting position when the first station is in the first riveting position, and to convey the riveting head to the second riveting position when the second station is in the second riveting position. The rotation paths of the first and second conveying components are set in opposite directions according to the working sequence of the riveting head. When the riveting head is in the first riveting position at the first station, it can perform riveting operations at the first station. While the operator is waiting for the riveting operation, another workpiece to be worked on can be loaded to the second station, and the second auxiliary mechanism can be operated to press down the second pad. When the riveting at the first station is completed, the first station is conveyed back to the first loading / unloading position from the first riveting position. At the same time, the second station is conveyed from the second loading / unloading position to the second riveting position, and the riveting head is conveyed from the first riveting position to the second riveting position to perform the riveting operation at the second station. At this time, the operator can unload the workpiece that has been completed at the first station and load a new workpiece to be worked on. This process is repeated, so that the riveting equipment can work without stopping and improve work efficiency.

[0034] Furthermore, both the first auxiliary mechanism and the second auxiliary mechanism are connected to their respective receiving seats and move along a preset track under the drive of their respective conveying components.

[0035] To improve production safety, preferably, a partition is provided between the first and second loading / unloading positions to separate them. The partition separates the first and second loading / unloading positions spatially, preventing interference between them and improving operator safety.

[0036] Compared with the prior art, the advantages of the present invention are as follows: The riveting equipment is equipped with a first auxiliary mechanism at the first station. The first auxiliary mechanism can act from top to bottom on the interval between two adjacent riveting holes in the first shim, thus making it suitable for narrow working surfaces. Under the action of the first auxiliary mechanism, each riveting hole of the first shim is aligned with the rivets pre-set on the first wall surface. This avoids the first shim from warping and deforming, while ensuring that each rivet is fully exposed and its height H above the first shim is always 0.5-1.0 mm, thereby ensuring the tightness of the rivet connection. At the same time, since each riveting hole is aligned with the rivets pre-set on the first wall surface, deformation and movement of the first shim are avoided, reducing the possibility of burrs generated by the friction between the riveting head and the edge of the riveting hole during the riveting process, and improving the yield of the workpiece to be processed. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the shell structure in the background art of this invention;

[0038] Figure 2 Figure 1 Enlarged view of point L in the middle;

[0039] Figure 3 This is a schematic diagram of the riveting equipment in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the shell structure in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the structure of the first workstation in an embodiment of the present invention;

[0042] Figure 6 for Figure 5 Enlarged view at point M;

[0043] Figure 7 This is a schematic diagram of the structure of the first auxiliary mechanism in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of the second workstation in an embodiment of the present invention;

[0045] Figure 9 for Figure 8 Enlarged view at point N;

[0046] Figure 10 This is a schematic diagram of the riveting mechanism in the first position in an embodiment of the present invention;

[0047] Figure 11 This is a schematic diagram of the riveting mechanism in the second position in an embodiment of the present invention;

[0048] Figure 12This is a schematic structural diagram of the swaging mechanism in the third position in the embodiment of the present invention. Specific embodiments

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0050] As Figure 3-12 shown, the present swaging device is the best embodiment of the present invention. The swaging device of this embodiment is a tool widely used for realizing riveting operations. When the workpiece B to be operated is a housing provided in the background art, as Figure 4 shown, the working surface to be operated has more than one surface, that is, it includes a first side wall B1 and a second side wall B4 that are not on the same working surface. Among them, the edge of the first side wall B1 has a concave step B2. The step B2 has a first wall surface B21 parallel to the first side wall B1, and a second wall surface B22 connecting the first wall surface B21 and the first side wall B1. A first gasket A needs to be riveted on the first wall surface B21, and a second gasket C needs to be riveted on the second side wall B4. A first station 3 for riveting the first gasket A to the first wall surface B21 and a second station 5 for riveting the second gasket C to the second side wall B4 are provided on the workbench 1 of the swaging device.

[0051] In addition to the particularity of the above working surface, the first gasket A is a long strip-shaped thin sheet, and a riveting hole A1 is provided for each preset rivet B3 on the first wall surface B21. As Figure 4 shown, there is an interval section A2 between two adjacent riveting holes A1, and a convex portion A3 with a "ji" - shaped cross-section is provided on each interval section A2. There are three convex portions A3 arranged along the length direction of the first gasket A, and each convex portion A3 maintains a preset height from the first wall surface B21. The second gasket C is different from the first gasket A. The second gasket C is a thin sheet with a large hollow area in the center. Due to the existence of the large hollow area in the center, the center of the second gasket C is prone to arching and deformation.

[0052] Therefore, the swaging device of this embodiment has made specific structural improvements for specific working surfaces and specific gasket structures. First, the structure of the first station 3 corresponding to the operation of the first side wall B1 for riveting the first gasket A will be described. Refer to Figure 5-6To align the riveting holes A1 of the first gasket A with the rivets B3 pre-installed on the first wall surface B21, a first auxiliary mechanism 4 is designed on the first workstation 3. Due to the special design of the first gasket A, this first auxiliary mechanism 4 can act on the interval section A2 of the first gasket A from top to bottom. In this embodiment, the first auxiliary mechanism includes a body 41, a clamping member 42, and a hinge portion 43. The main body 41 is mounted on the workbench 1. The tail 42b of each clamping member 42 is connected to the connecting structure 411 provided in the main body 41 by means of the connecting part 45 extending along the length direction of the first pad A, and is connected to the power output end of the main body 41 through the connecting structure 411. The hinge part 43 is provided on the top wall of the main body 41, located between the head 42a and the tail 42b and can be hinged to the main body 41. When the power output end of the power unit in the main body 41 drives the connecting structure 411 to move upward along the center line of the main body 41, each connecting rod of the connecting structure 411 drives the head 42a of the corresponding clamping member 42 to rotate around the hinge part 43. Under the combined action of the power unit and the adjusting member 44 in the main body 41, the head 42a of each clamping member 42 selectively presses against or abuts against the interval A2 of the first pad A. The first auxiliary mechanism 4, through the connecting rods of the connecting structure 411, drives the head 42a of the corresponding clamping member 42 to rotate around the hinge part 43, enabling the clamping member 42 to act on the interval A2 of the first gasket A from top to bottom. The first auxiliary mechanism 4 is independently externally installed on the first wall surface B21, which is different from the existing "clamping mechanism" that acts directly on the first wall surface B21. Therefore, when it acts on the first gasket A, only the head 42a of the clamping member 42 applies pre-pressure to the interval A2 of the first gasket A with the help of the adjustment mechanism, thereby applying appropriate pre-pressure to each interval A2, pressing or abutting the first gasket A in a point contact manner, and avoiding deformation of the first gasket A caused by the pre-pressure applied by the clamping member.

[0053] However, if the head 42a of the clamping member 42 acts directly on the protrusion A3, the protrusion A3 will bend downwards due to the pressure, and the two sides of the protrusion A3 will warp and deform. The first auxiliary mechanism 4, with the help of the adjusting member 44, can selectively press or abut against the interval section A2, thereby achieving the following: while preventing the first washer A from warping and deforming, the height H of each rivet B3 above the first washer A always satisfies: 0.5 mm ≤ H ≤ 1 mm. Since the first wall surface B21 is located in the step B2 recessed at the edge of the first side wall B1, it has the limitation of being narrow, so the first auxiliary mechanism 4 can only be designed to be independent of the first wall surface B21 and press down from top to bottom along the direction of the step B2. Specifically, see Figure 7The first auxiliary mechanism 4 includes at least two pressing members 42 disposed on the top wall of the body 41 and designed as finger-like structures. The head 42a of each pressing member 42 is a finger-like structure extending in a horizontal direction perpendicular to the center line of the body 41. The adjusting member 44 protrudes from the head 42a of each pressing member 42 toward the direction of the first wall surface B21 and is constrained at the periphery of the adjusting hole 421 in the head 42a of each pressing member 42. Its extension direction is parallel to the second wall surface B22. The finger-like pressing members 42 and the head 42a of each pressing member 42 protruding toward the direction of the first wall surface B21, and the adjusting member 44 enable the pressing members 42 to press or abut against the first pad A from top to bottom in a point contact manner by means of the adjusting member 44. Whether the clamping member 42 presses down or abuts against the spacer segment A2 depends on the shape of the spacer segment A2 of the first pad A corresponding to the clamping member 42. If the clamping member 42 presses down on the spacer segment A2 with a protrusion A3, the protrusion A3 will bend downward due to the pressure, and the two sides of the protrusion A3 will be warped and deformed. Therefore, the clamping member 42 acting on the protrusion A3 is controlled by its corresponding adjusting member 44 to only abut against the protrusion A3 without applying additional force to the protrusion A3 to control its warping and deformation.

[0054] In addition to designing the clamping member 42 as a finger-like structure, the key point is that the adjustment method of the adjusting member 44 is designed to protrude along the head 42a of each clamping member 42 towards the first wall surface B21. These two designs can achieve a technical effect of 1+1>2. Firstly, the clamping member 42 can press or abut against the first pad A from top to bottom in a point contact manner with the help of the adjusting member 44, just like a finger. Secondly, the adjusting member 44 can move up and down in the adjusting hole 421 to adjust the clamping member 42 for the protrusion A3 to only abut against the protrusion A3, while the other clamping members 42 can appropriately increase the pre-tightening force to press against the interval section A2. This allows for adaptive adjustment according to the design characteristics of the first pad A. Similarly, due to the narrow limitation of the first wall surface B21, it is difficult to reserve the adjustment space required for the "clamping mechanism" to move back and forth or left and right for adjustment. The adjustment component 44 can only adjust the pre-pressure of the head 42a acting on the interval A2 of the first pad A by moving up and down. See Figure 7The adjusting component 44 includes an adjusting screw 441 and a nut 442. The length of the adjusting screw 441 extends parallel to the second wall surface B22. The lower end of the adjusting screw 441 passes through the adjusting hole 421 and can act on the spacer section A2 of the first gasket A. The upper end of the adjusting screw 441 is exposed above the screw hole for adjustment. The adjusting screw 441 has an external thread, while the nut 442 is fixed on the adjusting hole 421 and has an internal thread that matches the external thread of the adjusting screw 441. When the adjusting screw 441 rotates relative to the nut 442, the adjusting screw 441 can move up and down, thereby adjusting the preload of the head 42a acting on the spacer section A2 of the first gasket A, so that the head 42a selectively presses against or abuts against the spacer section A2 of the first gasket A. The adjustment component 44 adjusts the pre-pressure acting on the interval section A2 by "moving up and down", avoiding the problem of "moving left and right" or "moving back and forth" in the existing solution, which occupies a large adjustment space. Therefore, it is well-suited to the first wall surface B21 with its narrow limitations.

[0055] like Figure 8-9 As shown, the structure of the second station 5, corresponding to the operation of riveting the second side wall B4 of the second washer C, will be described. To align each riveting hole A1 of the second washer C with the rivets B3 pre-installed on the second side wall B4, a second auxiliary mechanism 6 is designed on the second station 5. This second auxiliary mechanism 6 is basically the same as the first auxiliary mechanism 4, but with the following changes for the special design of the second washer C: only one clamping member 42 is provided, which presses down on the center of the second washer C. The clamping member 42 and the second washer C are in surface contact, and a protective pad 61 is provided on the contact surface, thus ensuring a soft contact between the clamping member 42 and the second washer C. The second auxiliary mechanism 6 can press down on the central hollow area of ​​the second washer C, preventing the second washer C from arching and deforming due to the large hollow area in the center.

[0056] Furthermore, in order to ensure that operators can work seamlessly between the two work surfaces of the product being processed when working between the first workstation 3 and the second workstation 5, such as... Figure 10-12As shown, the riveting equipment in this embodiment also includes a loading / unloading area 7 and a riveting area 8. The loading / unloading area 7 includes a first loading / unloading position 71 for loading or unloading the workpiece B to be worked onto the first station 3, and a second loading / unloading position 72 for loading or unloading the workpiece B to be worked onto the second station 5. A partition 10 is provided between the first loading / unloading position 71 and the second loading / unloading position 72 to separate them. The partition 10 can separate the first loading / unloading position 71 and the second loading / unloading position 72, so that they are spatially separated, avoiding mutual interference between the first loading / unloading position 71 and the second loading / unloading position 72, and improving the safety of the operator. The riveting area 8 includes a first riveting position 81 corresponding to the first station 3 where the first shim A is riveted to the first wall surface B21, and a second riveting position 82 corresponding to the second station 5 where the second shim C is riveted to the second side wall B4. A riveting head 2 is provided on the riveting area 8. The riveting head 2 is conveyed between the first riveting position 81 and the second riveting position 82 by means of a third conveying member 93. The third conveying member 93 is arranged along the X-axis direction of the worktable 1 and conveys the riveting head 2 to the first riveting position 81 when the first station 3 is located at the first riveting position 81, and conveys the riveting head 2 to the second riveting position 82 when the second station 5 is located at the second riveting position 82.

[0057] The first station 3 is connected between the first loading / unloading position 71 and the first riveting position 81 by means of a first conveying component 91. The first conveying component 91 is arranged along the Y-axis of the worktable 1. The riveting head 2 can perform riveting operations on the first station 3 when it is in the first riveting position 81. The second station 5 is connected between the second loading / unloading position 72 and the second riveting position 82 by means of a second conveying component 92. The second conveying component 92 is arranged parallel to the first conveying component 91. The riveting head 2 can perform riveting operations on the second station 5 when it is in the second riveting position 82. The first auxiliary mechanism 4 and the second auxiliary mechanism 6 are both connected to their respective receiving seats 46 and move along a preset track under the drive of their respective conveying components.

[0058] The rotation paths of the first conveying component 91 and the second conveying component 92 are set in opposite directions for the operation sequence of the riveting head 2. When the riveting head 2 is in the first riveting position 81 at the first station 3, it can perform riveting operations on the first station 3. While the operator is waiting for the riveting operation, another workpiece B to be worked on can be loaded to the second station 5, and the second auxiliary mechanism 6 can be operated to press down the second pad C. When the riveting at the first station 3 is completed, the first station 3 is conveyed back from the first riveting position 81 to the first loading / unloading position 71. At the same time, the second station 5 is conveyed from the second loading / unloading position 72 to the second riveting position 82, and the riveting head 2 is conveyed from the first riveting position 81 to the second riveting position 82 to perform the riveting operation at the second station 5. At this time, the operator can unload the workpiece that has been completed at the first station 3 and load the new workpiece B to be worked on. This process is repeated so that the riveting equipment can work without stopping and improve work efficiency.

[0059] In summary, the operation sequence of this riveting equipment is as follows:

[0060] a. such as Figure 10 As shown, the first side wall B1 of the workpiece B to be worked is fed to the first station 3 with the first auxiliary mechanism 4 acting on the interval section A2 of the first gasket A from top to bottom, so that each of the riveting holes A1 of the first gasket A is aligned with the rivets B3 preset on the first wall surface B21.

[0061] b. Adjust the adjusting member 44 of the first auxiliary mechanism 4 so that the clamping member 42 acting on the protrusion A3 abuts against the protrusion A3, and the clamping member 42 acting on the interval A2 of the non-protrusion A3 presses against the interval A2.

[0062] c. For example Figure 11 As shown, the first station 3 is transferred from the first loading / unloading position 71 to the first riveting position 81, and at the same time, the riveting head 2 is transferred to the first riveting position 81.

[0063] d. The riveting operation begins at the first station 3; at the same time, the second side wall B4 of another workpiece B to be worked is fed to the second station 5 with the second auxiliary mechanism 6 facing upward. The clamping part 42 of the second auxiliary mechanism 6 presses down on the center of the second pad C, so that each riveting hole A1 of the second pad C is aligned with the rivet B3 preset on the second wall surface B22.

[0064] e. For example Figure 12 As shown, after the riveting operation of the first station 3 is completed, the first station 3 is transferred from the first riveting position 81 back to the first loading and unloading position 71. At the same time, the second station 5 is transferred from the second loading and unloading position 72 to the second riveting position 82, and the riveting head 2 is transferred to the second riveting position 82.

[0065] f. The riveting operation begins at the second station 5. At the same time, the completed workpiece is unloaded from the first station 3 and steps a and b are executed.

[0066] g. After the riveting operation at the second station 5 is completed, the second station 5 is transferred back to the second loading / unloading position 72, and step c is executed simultaneously.

[0067] h. Repeat step dg until the job is finished.

Claims

1. A spin riveting device comprising a worktable (1); a spin riveting head (2) arranged on the worktable (1); a first work station (3) arranged on the worktable (1) for riveting a first gasket (A) to a first side wall (B1) of a workpiece (B) to be worked, wherein the edge of the first side wall (B1) has a concave step (B2) having a first wall surface (B21) parallel to the first side wall (B1) and a second wall surface (B22) connecting the first wall surface (B21) and the first side wall (B1), the first wall surface (B21) is relatively thin and has a plurality of rivets (B3), the first gasket (A) is a long and thin sheet, and the first gasket (A) is provided with a press riveting hole (A1) corresponding to each rivet (B3), characterized in that the first work station (3) is provided with a first auxiliary mechanism (4) capable of acting on the interval section (A2) between two adjacent press riveting holes (A1) of the first gasket (A) from top to bottom, so that each press riveting hole (A1) of the first gasket (A) is aligned with the rivet (B3) prearranged on the first wall surface (B21), thereby realizing that while avoiding the warping deformation of the first gasket (A), the height H of each rivet (B3) above the first gasket (A) always satisfies: 0.5 mm≤H≤1 mm; the first auxiliary mechanism (4) comprises a body (41) arranged on the worktable (1); a pressing member comprising at least two pressing pieces (42) arranged on the top wall of the body (41), each pressing piece (42) comprising a head (42a) for pressing the interval section (A2) of the first gasket (A), and the tail (42b) of each pressing piece (42) is connected with the power output end of the body (41) through a connecting structure (411) arranged in the body (41); a hinge part (43) also arranged on the top wall of the body (41) and capable of being hinged on the body (41); an adjusting member (44) arranged on the head (42a) of each pressing piece (42) for adjusting the pre-pressing force of the head (42a) acting on the interval section (A2) of the first gasket (A); in the state that the power output end of the power part in the body (41) drives the connecting structure (411) to move upward along the center line (R) of the body (41), each connecting rod of the connecting structure (411) drives the head (42a) of the corresponding pressing piece (42) to rotate around the hinge part (43), and under the joint action of the power part in the body (41) and the adjusting member (44), the head (42a) of each pressing piece (42) selectively presses or abuts on the interval section (A2) of the first gasket (A). The tail part (42b) of each pressing part (42) is connected with the connecting structure (411) by means of a connecting part (45) extending along the length direction of the first gasket (A), the head part (42a) of each pressing part (42) extends along a horizontal direction perpendicular to the center line (R) of the body (41), when the pressing part (42) presses on the interval section (A2) having the protruding part (A3), the pressing part (42) acting on the protruding part (A3) controls the pressing part (42) to only press against the protruding part (A3) without exerting additional force on the protruding part (A3) to control the warping deformation thereof.

2. Spin riveting apparatus according to claim 1, characterised in that: The head part (42a) of each pressing part (42) is a finger-shaped structure extending along a horizontal direction perpendicular to the center line (R) of the body (41), the adjusting member is protruded from the head part (42a) of each pressing part (42) towards the direction of the first wall surface (B21) and is constrained on the periphery of the adjusting hole (421) in the head part of each pressing part (42), the extending direction of the adjusting hole (421) is parallel to the second wall surface (B22), so that the adjusting member can press or abut against the first gasket (A) in a point contact manner when moving up and down in the adjusting hole.

3. Spin riveting apparatus according to claim 2, characterised in that: The adjusting member (44) comprises: An adjusting screw (441) having an extending direction of the length parallel to the second wall surface (B22), the lower end of the adjusting screw (441) passes through the adjusting hole (421) and can act on the interval section (A2) of the first gasket (A), the upper end of the adjusting screw (441) is exposed above the screw hole for adjustment, the adjusting screw (441) has external threads; A nut (442) fixed on the adjusting hole (421) and having internal threads matched with the external threads of the adjusting screw (441); In the state that the adjusting screw (441) rotates relative to the nut (442), the adjusting screw (441) can move up and down, thereby adjusting the pre-pressing force of the head part (42a) acting on the interval section (A2) of the first gasket (A) and selectively pressing or abutting against the interval section (A2) of the first gasket (A).

4. The spin riveting apparatus of claim 1, wherein: The spin riveting device further comprises a second working station (5) for riveting a second gasket (C) to the second side wall (B4) of the workpiece (B) to be worked, wherein the second side wall (B4) is on a different working surface of the workpiece than the first side wall (B1), the second gasket (C) is a thin sheet having a large hollow area in the center, the second working station (5) is arranged adjacent to the first working station (3), the second working station (5) is provided with a second auxiliary mechanism (6), the second auxiliary mechanism (6) has the same mechanism as the first auxiliary mechanism (4), and the pressing part (42) is only provided with one, which corresponds to pressing the center of the second gasket (C).

5. Spin riveting apparatus according to claim 4, characterised in that: Further comprising: The loading and unloading area (7) comprises a first loading and unloading position (71) for loading or unloading the workpiece (B) to the first station (3) and a second loading and unloading position (72) for loading or unloading the workpiece (B) to the second station (5); The spin riveting area (8) comprises a first spin riveting position (81) corresponding to the first station (3) for spin riveting the first gasket (A) to the first wall surface (B21) and a second spin riveting position (82) corresponding to the second station (5) for spin riveting the second gasket (C) to the second side wall (B4), and the spin riveting head (2) is located above the spin riveting area (8); The first transmission member (91) is arranged along the Y-axis direction of the workbench (1) and is used for driving the first station (3) to move along the Y-axis direction and transmitting the first station (3) from the first loading and unloading position (71) to the first spin riveting position (81), the spin riveting head (2) can perform spin riveting operation on the first station (3) when the first station (3) is located at the first spin riveting position (81), and the first transmission member (91) is also used for transmitting the first station (3) from the first spin riveting position (81) back to the first loading and unloading position (71); The second transmission member (92) is arranged in parallel with the first transmission member (91) and is used for driving the second station (5) to move along the Y-axis direction and transmitting the second station (5) from the second loading and unloading position (72) to the second spin riveting position (82), the spin riveting head (2) can perform spin riveting operation on the second station (5) when the second station (5) is located at the second spin riveting position (82), and the second transmission member (92) is also used for transmitting the second station (5) from the second spin riveting position (82) back to the second loading and unloading position (72), and the rotation paths of the first transmission member (91) and the second transmission member (92) are arranged in opposite directions with respect to the operation time sequence of the spin riveting head (2); The third transmission member (93) is arranged along the X-axis direction of the workbench (1) and is used for driving the spin riveting head (2) to move along the X-axis direction and transmitting the spin riveting head (2) above the first spin riveting position (81) when the first station (3) is located at the first spin riveting position (81) and transmitting the spin riveting head (2) above the second spin riveting position (82) when the second station (5) is located at the second spin riveting position (82).

6. Spin riveting apparatus according to claim 5, characterised in that: The first auxiliary mechanism (4) and the second auxiliary mechanism (6) are connected to the corresponding receiving seats (46) and move along the preset tracks under the driving of the corresponding transmission members.

7. The spin riveting apparatus of claim 5, wherein: The first loading and unloading position (71) and the second loading and unloading position (72) are provided with a partition plate (10) for partitioning the first loading and unloading position (71) and the second loading and unloading position (72).

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