Triaxial rivet automatic servo press-fitting machine

Abstract

The utility model relates to a three-axis rivet automatic servo press-fitting machine. The press-fitting machine comprises a press-fitting table, a Y-axis driving mechanism, a rivet supply mechanism, a feeding mechanism, a press-fitting head assembly, a Z-axis driving mechanism and an X-axis driving mechanism. Wherein the press-fitting head assembly comprises a T-shaped press head piece, a press head shaft seat arranged above the T-shaped press head piece, a press head fixing sleeve for coaxially fixing the T-shaped press head piece on the press head shaft seat, and a disc type pressure sensor arranged at the upper end of the press head shaft seat; the pressure head shaft seat is fixed on a movable terminal of the Z-axis driving mechanism through the disc type pressure sensor; the pressure head fixing sleeve is detachably connected with the pressure head shaft seat; during working, a workpiece is placed at a preset position of the press-fitting table, the press-fitting table is reset through the Y-axis driving mechanism, rivets are moved to the workpiece through the feeding mechanism, the T-shaped pressure head part is aligned to the rivets through the Z-axis driving mechanism and the X-axis driving mechanism, and press-fitting is performed, so that the labor intensity of operators is greatly reduced, and the production efficiency and the machining quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet press-fitting machines, in particular to a three-axis rivet automatic servo press-fitting machine. Background Art

[0002] Rivet connection is a commonly used fixed connection method in mechanical processing, which has the advantages of low cost and high connection tightness. The existing rivet connection usually uses manual method to place the rivet at the predetermined position of the workpiece before riveting. This method increases the labor intensity of the operator and affects the work efficiency. There are also certain safety hazards in safe operation.

[0003] In order to solve the above technical problems, a rivet gun that automatically supplies rivets has appeared on the market. The operator holds the rivet gun and performs riveting processing on the places that need to be riveted separately. The rivet gun is suitable for processing occasions with a small number of rivets. When riveting circuit boards with a large number of rivets, the processing efficiency of the rivet gun is obviously low, and it is difficult to meet the needs of batch riveting processing; in addition, since the rivet gun needs to be held by hand, the labor intensity of the operator is not reduced much. Utility Model Content

[0004] The purpose of the utility model is to provide a three-axis rivet automatic servo press-fitting machine to address the deficiencies of the prior art. The three-axis rivet automatic servo press-fitting machine can well solve the above-mentioned problems.

[0005] In order to achieve the above requirements, the technical solution adopted by the utility model to solve its technical problems is:

[0006] A three-axis rivet automatic servo press is provided, which includes a press table for holding workpieces, a Y-axis driving mechanism for driving the press table to move horizontally, a rivet supply mechanism horizontally parallel to the Y-axis driving mechanism, a loading mechanism for moving rivets on the rivet supply mechanism to the press table, a press head assembly arranged above the press table, and a Z-axis driving mechanism for driving the press head assembly to move up and down, and also includes an X-axis driving mechanism for driving the Z-axis driving mechanism to move horizontally; the press head assembly includes a T-shaped press head piece, a press head shaft seat arranged above the T-shaped press head piece, a press head fixing sleeve for coaxially fixing the T-shaped press head piece on the press head shaft seat, and a disc pressure sensor arranged at the upper end of the press head shaft seat; the press head shaft seat is fixed to the movable terminal of the Z-axis driving mechanism through the disc pressure sensor, and the press head fixing sleeve is detachably connected to the press head shaft seat.

[0007] The three-axis rivet automatic servo press machine described in the utility model, wherein the lower end face of the press head shaft seat is provided with a positioning groove adapted to the lateral end of the T-shaped press head piece, the press head fixing sleeve is sleeved on the lower end of the press head shaft seat, and the bottom of the press head fixing sleeve is provided with an avoidance hole for the longitudinal end of the T-shaped press head piece to pass through. When assembled in place, the press head fixing sleeve presses the lateral end of the T-shaped press head piece against the bottom surface of the positioning groove.

[0008] The three-axis rivet automatic servo press described in the utility model, wherein a fixed platform is coaxially provided at the upper end of the pressure head shaft seat, an adapter seat is coaxially and detachably provided on the fixed platform, a connecting shaft that passes through the through hole of the disc pressure sensor is coaxially provided on the upper surface of the adapter seat, and the connecting shaft is threadedly connected to the disc pressure sensor.

[0009] The three-axis rivet automatic servo press described in the utility model, wherein a mounting seat is coaxially and detachably provided on the upper surface of the disc-type pressure sensor, the mounting seat is coaxially and detachably connected to the movable terminal of the Z-axis drive mechanism, and an avoidance groove for avoiding the connecting shaft is provided on the lower surface of the mounting seat.

[0010] The three-axis rivet automatic servo press machine described in the utility model, wherein the feeding mechanism includes a clamping jaw module for clamping a workpiece, and an X-axis driving module for driving the clamping jaw module to move laterally; the X-axis driving module is arranged along the arrangement direction of the Y-axis driving mechanism and the rivet feeding mechanism, and the X-axis driving module is located above the press table.

[0011] The three-axis rivet automatic servo press described in the utility model, wherein the clamping jaw module includes two horizontally opposite clamping blocks, a finger cylinder driving the two clamping blocks to move toward or away from each other, and a lifting cylinder driving the finger cylinder to move up and down; the lifting cylinder is fixed on the movable terminal of the X-axis drive module, and the finger cylinder is longitudinally slidably arranged on the movable terminal of the X-axis drive module through a guide rail assembly; the lower ends of the opposite side walls of the two clamping blocks are provided with extensions, and the opposite side walls of the two extensions are provided with positioning grooves adapted to the lateral ends of the rivets.

[0012] The three-axis rivet automatic servo press described in the utility model, wherein the rivet supply mechanism includes a material guide bridge for connecting to a vibration plate, and a discharge module for receiving rivets arranged at the discharge end of the material guide bridge; the discharge module is used to move the rivets out of the discharge end of the material guide bridge and provide for clamping by the clamping jaw module.

[0013] The three-axis rivet automatic servo press described in the utility model, wherein the discharge module includes a base; a receiving groove for accommodating the discharge end of the material guide bridge is provided on the upper surface of the base, and a slide groove perpendicular to the material guide bridge is also provided; the discharge module also includes a slider adapted to the slide groove, and a discharge cylinder for driving the slider to reciprocate; an adapter groove for the longitudinal end of the rivet to enter is provided on the side wall of one end of the slider facing the material guide bridge, the adapter groove passes through the upper surface of the slider, and a discharge window connecting the material guide groove of the material guide bridge and the adapter groove is provided on the inner wall of the slide groove.

[0014] The three-axis rivet automatic servo press described in the utility model, wherein an anti-foolproof plate is also provided on the upper surface of the base, the anti-foolproof plate is located above the material guide groove of the material guide bridge, and the distance between the lower surface of the anti-foolproof plate and the upper surface of the material guide bridge is greater than the thickness of the lateral end of the rivet.

[0015] The three-axis automatic servo rivet press machine described in the utility model, wherein the Y-axis drive mechanism, the X-axis drive mechanism, the Z-axis drive mechanism and the X-axis drive module are all servo screw motor modules.

[0016] The beneficial effect of the utility model is that when working, the press fitting table is moved out from under the Z-axis drive mechanism through the Y-axis drive mechanism, and the operator can place the workpiece on the preset position of the press fitting table. After assembly, the press fitting table is reset through the Y-axis drive mechanism. At this time, the rivet is taken out from the rivet supply mechanism through the feeding mechanism and moved to the corresponding position on the workpiece. After the assembly is in place, the T-shaped pressing head is driven by the Z-axis drive mechanism and the X-axis drive mechanism according to the set trajectory to align the rivet and press it. The whole process greatly reduces the labor intensity of the operator. The operator only needs to place the workpiece to be processed on the press fitting table. The operation is simple and easy, and the safety is high. At the same time, compared with the traditional method of manually pressing rivets, it can also improve production efficiency and processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 It is a bird's-eye view of the overall structure of the three-axis rivet automatic servo press machine of the utility model.

[0019] Figure 2 yes Figure 1 Another perspective of the picture.

[0020] Figure 3 yes Figure 1 Side view of.

[0021] Figure 4 yes Figure 3 AA section view.

[0022] Figure 5 yes Figure 4 A magnified view of the local structure.

[0023] Figure 6 yes Figure 5 A magnified view of the local structure.

[0024] Figure 7 yes Figure 1 A magnified view of the local structure.

[0025] Figure 8 yes Figure 7 A magnified view of the local structure.

[0026] Fig. 9 It is a bird's-eye view of the rivet supply mechanism of the three-axis rivet automatic servo press machine of the utility model. DETAILED DESCRIPTION

[0027] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] "Multiple" means two or more. "And / or" describes the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the related objects are in an "or" relationship.

[0030] Moreover, the terms "up, down, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or equipment described in this solution during normal use.

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0032] The three-axis rivet automatic servo press machine of the preferred embodiment of the utility model is as follows Figure 1-9 As shown, the press machine includes a press table 10 for holding a workpiece A1, and the press table 10 is slidably arranged on a work station plate 30 through a slide rail assembly 20. The press machine also includes a Y-axis driving mechanism 40 for driving the press table 10 to achieve lateral movement in the Y-axis direction. The press machine also includes a rivet supply mechanism 50 horizontally arranged on the work station plate 30 with the Y-axis driving mechanism 40, a feeding mechanism 60 for moving the rivet A2 on the rivet supply mechanism 50 to the press table 10, a press head assembly 70 arranged above the press table 10, and a Z-axis driving mechanism 80 for driving the press head assembly 70 to move up and down, and also includes an X-axis driving mechanism 90 for driving the Z-axis driving mechanism 80 to achieve lateral movement in the X-axis direction. The press head assembly 70 includes a T-shaped press head member 71, a press head shaft seat 72 disposed above the T-shaped press head member 71, a press head fixing sleeve 73 coaxially fixing the T-shaped press head member 71 on the press head shaft seat 72, and a disc pressure sensor 74 disposed on the upper end of the press head shaft seat 72. The press head shaft seat 72 is fixed to the movable terminal 81 of the Z-axis driving mechanism 80 through the disc pressure sensor 74, and the press head fixing sleeve 73 is detachably connected to the press head shaft seat 72, so as to facilitate the replacement of T-shaped press head members 71 of different sizes and adapt to corresponding products. In addition, it is also convenient for the later disassembly and maintenance of the disc pressure sensor 74.

[0033] During operation, the press fitting table 10 is moved out from directly under the Z-axis drive mechanism 80 through the Y-axis drive mechanism 40, and the operator can place the workpiece A1 on the preset position of the press fitting table 10. After assembly, the press fitting table 10 is reset through the Y-axis drive mechanism 40. At this time, the rivet A2 is taken out from the rivet supply mechanism through the feeding mechanism 60 and moved to the corresponding position on the workpiece A1. After assembly, the T-shaped pressing head 71 is driven by the Z-axis drive mechanism 80 and the X-axis drive mechanism 90 according to the set trajectory to align with the rivet A2 and press it. The whole process greatly reduces the labor intensity of the operator. The operator only needs to place the workpiece A1 to be processed on the press fitting table 10. The operation is simple and easy, and the safety is high. At the same time, compared with the traditional method of manually pressing the rivet A2, it can also improve production efficiency and processing quality.

[0034] In this embodiment, the lower end surface of the ram shaft seat 72 is provided with a positioning groove 721 adapted to the transverse end of the T-shaped ram member 71. The ram fixing sleeve 73 is sleeved on the lower end of the ram shaft seat 72, and the bottom of the ram fixing sleeve 73 is provided with an avoidance hole 731 for the longitudinal end of the T-shaped ram member 71 to pass through. When assembled in place, the ram fixing sleeve 73 presses the transverse end of the T-shaped ram member 71 against the bottom surface of the positioning groove 721 to prevent the T-shaped ram member 71 from shaking, ensure the accuracy of docking during pressing, and improve the processing quality.

[0035] In this embodiment, a fixing platform 100 is coaxially provided on the upper end of the pressure head shaft seat 72, and an adapter seat 110 is coaxially and detachably provided on the fixing platform 100. A connecting shaft 111 that penetrates the through hole of the disc pressure sensor 74 is coaxially provided on the upper surface of the adapter seat 110, and the connecting shaft 111 is threadedly connected to the disc pressure sensor 74 for easy maintenance and replacement. Among them, a mounting seat 120 is coaxially and detachably provided on the upper surface of the disc pressure sensor 74, and the mounting seat 120 is coaxially and detachably connected to the movable terminal 81 of the Z-axis driving mechanism 80 for the purpose of protection and convenient installation. Furthermore, an avoidance groove 121 for avoiding the connecting shaft 111 is provided on the lower surface of the mounting seat 120 to facilitate the adjustment of the upper and lower positions of the adapter seat 110.

[0036] In this embodiment, the feeding mechanism 60 includes a clamping jaw module 61 for clamping the workpiece A1, and an X-axis driving module 62 for driving the clamping jaw module 61 to move horizontally; the X-axis driving module 62 is arranged along the arrangement direction of the Y-axis driving mechanism and the rivet supply mechanism 50, and the X-axis driving module 62 is located above the press-fitting table 10. Specifically, the clamping jaw module 61 includes two horizontally opposite clamping blocks 611, a finger cylinder 612 for driving the two clamping blocks 611 to move toward or away from each other, and a lifting cylinder 613 for driving the finger cylinder 612 to move up and down; the lifting cylinder 613 is fixed on the movable terminal 621 of the X-axis driving module 62, and the finger cylinder 612 is longitudinally slidably arranged on the movable terminal 621 of the X-axis driving module 62 through the guide rail assembly 140. Among them, the lower ends of the opposite side walls of the two clamping blocks 611 are provided with extension parts 6110, and the opposite side walls of the two extension parts 6110 are provided with positioning grooves 6111 adapted to the lateral ends of the rivet A2, thereby ensuring stability during the process of clamping the rivet A2.

[0037] In this embodiment, the rivet supply mechanism 50 includes a guide bridge 51 for connecting to the vibration plate, and a discharge module 52 arranged at the discharge end of the guide bridge 51 and used to receive the rivet A2. The discharge module 52 is used to move the rivet A2 out of the discharge end of the guide bridge 51 and provide it for clamping by the clamping claw module 61. Among them, the discharge module 52 includes a base 521. A receiving groove 150 for accommodating the discharge end of the guide bridge 51 is provided on the upper surface of the base 521, and the receiving groove 150 passes through a side wall of the base 521 close to the guide bridge 51. A slide groove 160 perpendicular to the guide bridge 51 is also provided on the upper surface of the base 521, and the slide groove 160 is parallel to the movement direction of the movable terminal 91 of the X-axis driving mechanism 90. The discharge module 52 also includes a slider 522 adapted to the slide groove 160, and a discharge cylinder 523 for driving the slider 522 to move back and forth. Specifically, the discharge cylinder 523 is located on the side of the base 521 away from the press-fitting table 10. The side wall of the slider 522 facing the guide bridge 51 is provided with an adapting groove 170 for the longitudinal end of the rivet A2 to enter horizontally, and the inner wall of the slide groove 160 is provided with a discharge window 180 connecting the guide groove 510 of the guide bridge 51 and the adapting groove 170. The adapting groove 170 runs through the upper surface of the slider 522, and the bottom surface of the adapting groove 170 is flush with the bottom surface of the guide groove 510 of the guide bridge 51 to ensure that the rivet A2 enters the adapting groove 170 smoothly.

[0038] During loading, the slider 522 is reset under the action of the discharge cylinder 523, so that the adapting groove 170 is aligned with the discharge window 180 and the guide groove 510, and the rivet A2 enters the adapting groove 170 under the action of the vibration plate. When a rivet A2 enters the adapting groove 170, the discharge cylinder 523 is actuated and then moves the rivet A2 out of the discharge end of the guide groove 510 through the slider 522 to separate it from other rivets A2, thereby facilitating the clamping of the rivet A2 by the clamping jaw module 61. This step is repeated to achieve efficient loading processing.

[0039] In this embodiment, an anti-foolproof plate 190 is further provided on the upper surface of the base 521. The anti-foolproof plate 190 is located above the material guide groove 510 of the material guide bridge 51. The distance between the lower surface of the anti-foolproof plate 190 and the upper surface of the material guide bridge 51 is greater than the thickness of the lateral end of the rivet A2 to ensure that the rivet A2 entering the discharge end of the material guide bridge 51 is discharged in a preset posture to avoid affecting the processing progress.

[0040] In this embodiment, the Y-axis driving mechanism 40, the X-axis driving mechanism 90, the Z-axis driving mechanism 80 and the X-axis driving module are all servo screw motor modules to ensure the accuracy requirements, which can of course also be achieved by high-precision cylinders.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A three-axis rivet automatic servo press machine, characterized in that: The press machine includes a press table for holding workpieces, a Y-axis driving mechanism for driving the press table to move horizontally, a rivet supply mechanism horizontally parallel to the Y-axis driving mechanism, a loading mechanism for moving rivets on the rivet supply mechanism to the press table, a press head assembly arranged above the press table, and a Z-axis driving mechanism for driving the press head assembly to move up and down, and also includes an X-axis driving mechanism for driving the Z-axis driving mechanism to move horizontally; the press head assembly includes a T-shaped press head piece, a press head shaft seat arranged above the T-shaped press head piece, and a press head fixing sleeve for coaxially fixing the T-shaped press head piece on the press head shaft seat, and a disc pressure sensor arranged at the upper end of the press head shaft seat; the press head shaft seat is fixed to the movable terminal of the Z-axis driving mechanism through the disc pressure sensor, and the press head fixing sleeve is detachably connected to the press head shaft seat.

2. The three-axis rivet automatic servo press machine according to claim 1 is characterized in that: The lower end surface of the pressure head shaft seat is provided with a positioning groove adapted to the lateral end of the T-shaped pressure head piece, the pressure head fixing sleeve is sleeved on the lower end of the pressure head shaft seat, and the bottom of the pressure head fixing sleeve is provided with an avoidance hole for the longitudinal end of the T-shaped pressure head piece to pass through. When assembled in place, the pressure head fixing sleeve presses the lateral end of the T-shaped pressure head piece against the bottom surface of the positioning groove.

3. The three-axis rivet automatic servo press machine according to claim 1 is characterized in that: A fixing platform is coaxially provided at the upper end of the pressure head shaft seat, an adapter seat is coaxially and detachably provided on the fixing platform, a connecting shaft penetrating through a through hole of the disc pressure sensor is coaxially provided on the upper surface of the adapter seat, and the connecting shaft is threadedly connected to the disc pressure sensor.

4. The three-axis rivet automatic servo press machine according to claim 3 is characterized in that: A mounting seat is coaxially and detachably provided on the upper surface of the disc-type pressure sensor, the mounting seat is coaxially and detachably connected to the movable terminal of the Z-axis driving mechanism, and an avoidance groove for avoiding the connecting shaft is provided on the lower surface of the mounting seat.

5. The three-axis rivet automatic servo press machine according to claim 1, characterized in that: The feeding mechanism includes a clamping jaw module for clamping the workpiece, and an X-axis driving module for driving the clamping jaw module to move laterally; the X-axis driving module is arranged along the arrangement direction of the Y-axis driving mechanism and the rivet feeding mechanism, and the X-axis driving module is located above the press table.

6. The three-axis rivet automatic servo press machine according to claim 5, characterized in that: The clamping jaw module includes two horizontally opposite clamping blocks, a finger cylinder driving the two clamping blocks to move toward or away from each other, and a lifting cylinder driving the finger cylinder to move up and down; the lifting cylinder is fixed on the movable terminal of the X-axis driving module, and the finger cylinder is longitudinally slidably arranged on the movable terminal of the X-axis driving module through a guide rail assembly; the lower ends of the opposite side walls of the two clamping blocks are provided with extension parts, and the opposite side walls of the two extension parts are provided with positioning grooves adapted to the lateral ends of the rivets.

7. The three-axis rivet automatic servo press machine according to claim 5, characterized in that: The rivet supply mechanism includes a material guide bridge connected to the vibration plate, and a discharge module arranged at the discharge end of the material guide bridge to receive rivets; the discharge module is used to move the rivets out of the discharge end of the material guide bridge and provide them for clamping by the clamping jaw module.

8. The three-axis rivet automatic servo press machine according to claim 7, characterized in that: The discharging module comprises a base; a receiving groove for accommodating the discharging end of the material guiding bridge is provided on the upper surface of the base, and a slide groove perpendicular to the material guiding bridge is also provided; the discharging module also comprises a slider adapted to the slide groove, and a discharging cylinder for driving the slider to reciprocate; an adapting groove for the longitudinal end of the rivet to enter is provided on the side wall of one end of the slider facing the material guiding bridge, the adapting groove passes through the upper surface of the slider, and a discharging window connecting the material guiding groove of the material guiding bridge and the adapting groove is provided on the inner wall of the slide groove.

9. The three-axis rivet automatic servo press machine according to claim 8, characterized in that: An anti-foolproof plate is also provided on the upper surface of the base, and the anti-foolproof plate is located above the material guide groove of the material guide bridge. The distance between the lower surface of the anti-foolproof plate and the upper surface of the material guide bridge is greater than the thickness of the lateral end of the rivet.

10. The three-axis rivet automatic servo press machine according to claim 5, characterized in that: The Y-axis driving mechanism, the X-axis driving mechanism, the Z-axis driving mechanism and the X-axis driving module are all servo screw motor modules.

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