Press head mechanism and assembly equipment

Abstract

The present disclosure relates to a pressing head mechanism and an assembly device, wherein the pressing head mechanism includes a driving assembly, a first connecting member, an adjusting assembly and a pressing head assembly; the driving assembly is connected to the first connecting member, and the driving assembly is used to drive the first connecting member to move along a first direction or a second direction, wherein the first direction is the opposite direction of the second direction; the adjusting assembly includes a floating joint and a plurality of elastic fittings, wherein the plurality of elastic fittings are distributed on both sides of the floating joint, wherein one end of the floating joint is connected to the first connecting member, and one end of the elastic fitting is connected to the first connecting member; the pressing head assembly is connected to the other end of the floating joint and the other end of the elastic fitting. By adopting the present disclosure, when pressing parts, the difficulty of debugging the equipment can be reduced, thereby improving the pressing efficiency of the parts.

Description

Technical Field

[0001] The present invention relates to the field of automated production technology, and in particular to a pressing head mechanism and an assembly device. Background Art

[0002] During the assembly process of portable terminals (such as mobile phones and tablets), it is often necessary to use a pressing head mechanism to press components together, for example, to fix components together through a pressing process, to maintain pressure between components connected by glue to improve the tightness of the connection, etc.

[0003] Currently, the pressing head mechanism usually includes two parts: a driving component and a pressing head. The movable part of the driving component (such as a telescopic rod in a cylinder) is rigidly connected to the pressing head, and the pressing head is driven to move to achieve the pressing of the parts.

[0004] However, in the above structure, when the component is a planar structure, the technician needs to adjust the flatness of the pressing head; when the component is a curved structure, the technician needs to adjust the posture of the pressing head according to the actual shape of the component, which makes the debugging of the equipment more difficult and the pressing efficiency of the parts is lower. Utility Model Content

[0005] The embodiments of the present disclosure provide a pressing head mechanism and an assembly device, which can solve the technical problems existing in the related art. The technical solutions are as follows:

[0006] In a first aspect, an embodiment of the present disclosure provides a pressing head mechanism, the pressing head mechanism comprising a driving assembly, a first connecting member, an adjusting assembly and a pressing head assembly;

[0007] The driving assembly is connected to the first connecting member, and the driving assembly is used to drive the first connecting member to move along a first direction or a second direction, wherein the first direction is the opposite direction of the second direction;

[0008] The adjustment assembly includes a floating joint and a plurality of elastic fittings, wherein the plurality of elastic fittings are distributed on both sides of the floating joint, one end of the floating joint is connected to the first connecting member, and one end of the elastic fitting is connected to the first connecting member;

[0009] The pressure head assembly is connected to the other end of the floating joint and the other end of the elastic joint.

[0010] In a possible implementation, the adjustment assembly also includes a plurality of supporting parts, and the plurality of supporting parts correspond one-to-one to the plurality of elastic parts. The supporting parts are located on a side of the elastic parts away from the floating joint, and the two ends are respectively connected to the first connecting member and the pressure head assembly.

[0011] In a possible implementation, the support assembly includes a plane dynamic steel ball positioning screw and a support sub-assembly;

[0012] The fixed end of the plane dynamic steel ball positioning screw is connected to the first connecting member;

[0013] The supporting sub-component is connected to the pressure head assembly, and the supporting surface of the supporting sub-component is in contact with the steel ball of the plane moving steel ball positioning screw.

[0014] In a possible implementation manner, the center of the ball of the floating joint is located in the plane where the supporting surface is located.

[0015] In a possible implementation, the supporting assembly further includes a locking nut;

[0016] The outer wall of the supporting sub-component is provided with an external thread and is threadedly connected with the pressing head assembly. The locking nut is sleeved on the outer ring of the supporting sub-component and is attached to the pressing head assembly.

[0017] In a possible implementation, the elastic component includes a support sleeve, a sliding steel ball and an elastic sub-component;

[0018] The support sleeve is connected to the first connecting member, and the support sleeve is provided with a receiving through hole extending along the first direction;

[0019] The sliding steel ball is at least partially located in the accommodating through hole and is in contact with the pressing head assembly;

[0020] The elastic sub-component is located in the accommodating through hole, and two ends thereof are respectively in contact with the first connecting member and the sliding steel ball.

[0021] In a possible implementation manner, the elastic sub-component is a rectangular spring.

[0022] In a possible implementation, the driving assembly includes a connecting plate, a slide cylinder, a photoelectric switch and a baffle;

[0023] The connecting plate is connected to the first connecting member;

[0024] The telescopic rod of the slide cylinder is connected to the connecting plate, and the slide cylinder is used to: drive the first connecting member to move along the first direction when the telescopic rod is in an extended state, and drive the first connecting member to move along the second direction when the telescopic rod is in a retracted state;

[0025] The photoelectric switch is connected to the slide cylinder, and the photoelectric switch is provided with an air avoidance area;

[0026] The blocking piece is located in the air-avoiding area and is connected to the connecting plate.

[0027] In a possible implementation, the pressure head mechanism further includes a pressure sensor;

[0028] The pressure sensor is located between the first connecting member and the connecting plate, and two ends of the pressure sensor are connected to the first connecting member and the connecting plate respectively.

[0029] In a second aspect, an embodiment of the present disclosure provides an assembly device, which includes the pressure head mechanism in the first aspect and possible implementations thereof.

[0030] The technical solution provided by the embodiments of the present disclosure includes at least the following beneficial effects:

[0031] The embodiment of the present disclosure provides a press head mechanism, in which a driving assembly is used to drive a first connecting member to move along a first direction or a second direction, an adjustment assembly includes a floating joint and a plurality of elastic parts, the plurality of elastic parts are distributed on both sides of the floating joint, one end of the floating joint is connected to the first connecting member, one end of the elastic part is connected to the first connecting member, and the press head assembly is connected to the other end of the floating joint and the other end of the elastic part. In this way, the two ends of the floating joint are respectively connected to the press head assembly and the first connecting member, that is, the press head assembly and the first connecting member are flexibly connected, and the press head assembly can rotate relative to the first connecting member. After the press head assembly contacts the pressed part, in the process that the driving assembly continues to drive the first connecting member to move, the press head assembly can automatically adjust its posture according to the structure of the part under the action of the floating joint and the elastic part. After the driving assembly drives the first connecting member to separate the press head assembly from the part, the press head assembly can be reset under the elastic force of the elastic part, and the technician does not need to manually adjust the posture of the press head assembly during the whole process, thereby reducing the difficulty of debugging the equipment and improving the pressing efficiency of the parts.

[0032] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 is a structural schematic diagram of a pressing head mechanism shown in an embodiment of the present disclosure;

[0035] Figure 2 is a structural schematic diagram of a pressing head mechanism shown in an embodiment of the present disclosure;

[0036] Figure 3 It is a structural schematic diagram of a planar dynamic steel ball positioning screw shown in an embodiment of the present disclosure;

[0037] Figure 4 is a structural schematic diagram of a pressing head mechanism shown in an embodiment of the present disclosure;

[0038] Figure 5 is a structural schematic diagram of an elastic assembly shown in an embodiment of the present disclosure;

[0039] Figure 6 is a structural schematic diagram of a pressing head mechanism shown in an embodiment of the present disclosure;

[0040] Figure 7 is a schematic structural diagram of a driving component shown in an embodiment of the present disclosure;

[0041] Figure 8 It is a structural schematic diagram of a floating joint shown in an embodiment of the present disclosure.

[0042] Legend

[0043] 1. Drive components;

[0044] 11. Connecting plate; 12. Sliding cylinder; 13. Photoelectric switch; 14. Blocking piece; 15. Fixing piece;

[0045] 111, slide rail;

[0046] 121, telescopic rod; 122, cylinder body; 123, solenoid valve;

[0047] 100. Avoid airspace;

[0048] 2. A first connecting member;

[0049] 3. Adjust components;

[0050] 31. Floating joint; 32. Elastic fitting; 33. Support fitting;

[0051] 311, first shaft body; 312, second shaft body; 313, sleeve body;

[0052] 321, support sleeve; 322, sliding steel ball; 323, elastic sub-component; 300, accommodating through hole; 300a, first accommodating through hole; 300b, second accommodating through hole;

[0053] 331. Plane dynamic steel ball positioning screw; 332. Support sub-component; 333. Locking nut;

[0054] 3311, fixed end; 3312, steel ball; 3321, supporting surface;

[0055] 4. Press head assembly;

[0056] 41. Pressure head adapter; 42. Rubber-coated pressure head;

[0057] 411, limiting protrusion structure; 421, limiting groove structure;

[0058] 5. Pressure sensor. DETAILED DESCRIPTION

[0059] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0060] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent disclosure specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0061] The pressing process is frequently used in the assembly process of portable terminals. For example, the pressing process is used to fix parts, or the pressing process is used to maintain the pressure of parts connected by glue to improve the stability of bonding, etc. With the development of automation technology, the above pressing process has gradually changed from being completed by technicians to being automatically completed by the pressing head mechanism. The pressing head mechanism usually includes a driving component and a pressing head. The driving component pushes the pressing head to bring the pressing head close to the parts and transmits the pressing force to the parts through the pressing head. Before pressing the parts, the technicians need to adjust the posture of the pressing head according to the actual shape of the parts to improve the fit between the pressing head and the parts and thus improve the pressing effect. When the parts are curved structures, the equipment is difficult to debug, and the pressing efficiency of the parts is low.

[0062] An embodiment of the present disclosure provides a pressing head mechanism, which includes a driving assembly 1, a first connecting member 2, an adjusting assembly 3 and a pressing head assembly 4.

[0063] Among them, the driving component 1 is used to drive the first connecting member 2 to move along the first direction or the second direction, the adjustment component 3 includes a floating joint 31 and a plurality of elastic joints 32, the plurality of elastic joints 32 are distributed on both sides of the floating joint 31, one end of the floating joint 31 is connected to the first connecting member 2, one end of the elastic joint 32 is connected to the first connecting member 2, and the pressure head assembly 4 is connected to the other end of the floating joint 31 and the other end of the elastic joint 32.

[0064] In this way, the two ends of the floating joint 31 are respectively connected to the ram assembly 4 and the first connecting member 2, that is, the ram assembly 4 and the first connecting member 2 are flexibly connected, and the ram assembly 4 can rotate relative to the first connecting member 2. After the ram assembly 4 contacts the pressed parts, while the driving assembly 1 continues to drive the first connecting member 2 to move, the ram assembly 4 can automatically adjust its posture according to the structure of the parts under the action of the floating joint 31 and the elastic joint 32. After the driving assembly 1 drives the first connecting member 2 to separate the ram assembly 4 from the parts, the ram assembly 4 can be reset under the elastic force of the elastic joint 32. During the whole process, the technician does not need to manually adjust the posture of the ram assembly 4, thereby reducing the difficulty of debugging the equipment and improving the pressing efficiency of the parts.

[0065] Below, the various components of the pressure head mechanism are introduced separately:

[0066] 1. Drive components 1

[0067] The driving assembly 1 is a component in the press head mechanism used to drive the first connecting member 2 to move away from or towards the component.

[0068] like Figure 1 As shown, the driving component 1 is connected to the first connecting member 2. The driving component 1 and the first connecting member 2 may be connected by welding or bonding, which is not limited in the embodiment of the present disclosure.

[0069] In some possible embodiments, the drive assembly 1 is a pneumatic component. Figure 6 As shown, the driving assembly 1 includes a connecting plate 11 and a slide cylinder 12 .

[0070] Among them, the connecting plate 11 is connected to the first connecting member 2, and the telescopic rod 121 of the slide cylinder 12 is connected to the connecting plate 11. The slide cylinder 12 is used to: drive the first connecting member 2 to move along the first direction when the telescopic rod 121 is in the extended state, and drive the first connecting member 2 to move along the second direction when the telescopic rod 121 is in the retracted state.

[0071] See also Figure 6A slide rail 111 is arranged on the wall surface of the connecting plate 11 close to the slide cylinder 12, and the slide rail 111 extends along the first direction. The slide cylinder 12 includes a telescopic rod 121 and a cylinder body 122, and a piston cavity is arranged inside the cylinder body 122. A sliding protrusion structure (not shown) is arranged on the wall surface of the cylinder body 122 close to the connecting plate 11, and the sliding protrusion structure cooperates with the slide rail 111.

[0072] In practice, the cylinder body 122 is fixedly connected to the assembly equipment, the telescopic rod 121 is at least partially disposed inside the piston cavity and is slidably connected to the piston cavity, one end of the telescopic rod 121 located inside the piston cavity has a separator structure (not shown), the separator structure separates the piston cavity into a first cavity and a second cavity, and the cylinder body 122 is provided with a first air inlet and a second air inlet (both not shown), wherein the first air inlet is connected to the first cavity, and the second air inlet is connected to the second cavity. Figure 6 The slide cylinder 12 has two solenoid valves 123, one of which is arranged at the first air inlet for controlling the connection or closing of the first air inlet, and the other solenoid valve 123 is arranged at the second air inlet for controlling the connection or closing of the second air inlet. When the solenoid valve arranged in the first air inlet is in the on state and the solenoid valve arranged in the second air inlet is in the off state, the high-pressure gas enters the first cavity through the first air inlet, and the first cavity is in the high-pressure state. At this time, the second cavity is in the normal pressure state, and the pressure in the first cavity is greater than the pressure in the second cavity. The telescopic rod 121 moves along the first direction. Correspondingly, when the solenoid valve arranged in the second air inlet is in the on state and the solenoid valve arranged in the first air inlet is in the off state, the high-pressure gas enters the second cavity through the second air inlet, and the second cavity is in the high-pressure state. At this time, the first cavity is in the normal pressure state, and the pressure in the second cavity is greater than the pressure in the first cavity. The telescopic rod 121 moves along the second direction.

[0073] In one example, the driving component 1 further includes a photoelectric switch 13 and a baffle 14 .

[0074] like Figure 6 and Figure 7 As shown, the photoelectric switch 13 is connected to the slide cylinder 12 , and a clearance area 100 is provided in the photoelectric switch 13 . The baffle 14 is located in the clearance area 100 and is connected to the connecting plate 11 .

[0075] In implementation, the photoelectric switch 13 is provided with an air-avoiding area 100, and the air-avoiding area 100 has a first wall and a second wall facing each other, a photoelectric transmitter is provided on the first wall, and a photoelectric receiver is provided on the second wall (both are not shown), the photoelectric transmitter transmits a photoelectric signal toward the photoelectric receiver in a horizontal direction, and the photoelectric receiver receives the photoelectric signal transmitted by the photoelectric transmitter, and the baffle 14 is used to block the photoelectric signal transmitted by the photoelectric transmitter, and prevent the photoelectric signal from reaching the second wall. When the photoelectric receiver can receive the photoelectric signal transmitted by the photoelectric transmitter, it means that the baffle 14 is at least partially located inside the air-avoiding area 100 at this time, and accordingly, the pressure head assembly 4 has not moved to the preset position. In this case, the telescopic rod 121 of the slide cylinder 12 continues to move in the first direction, driving the pressure head assembly 4 to continue to move. When the photoelectric receiver cannot receive the photoelectric signal transmitted by the photoelectric transmitter, it means that the baffle 14 has been completely moved to the outside of the air-avoiding area 100 at this time, and accordingly, the pressure head assembly 4 has moved to the preset position, and the telescopic rod 121 of the slide cylinder 12 stops moving.

[0076] Optionally, the drive assembly 1 further includes a fixing member 15. Figure 7 As shown, the fixing member 15 has a plate-like structure, the fixing member 15 is connected to the slide cylinder 12, and the photoelectric switch 13 is connected to the fixing member 15. The connection mode between the fixing member 15 and the slide cylinder 12 and the connection mode between the photoelectric switch 13 and the fixing member 15 can be the same or different, and the embodiment of the present disclosure does not limit this.

[0077] Exemplarily, the fixing member 15 is bonded to the slide cylinder 12 , and the photoelectric switch 13 is connected to the fixing member 15 by bolts.

[0078] 2. First connecting member 2

[0079] The first connecting member 2 is a component in the pressure head mechanism used to connect the driving component 1 and the adjusting component 3 .

[0080] In some possible embodiments, the first connecting member 2 has a plate-like structure. Figure 1 As shown, the first connecting member 2 has a plate-like structure and is arranged perpendicular to the first direction. Two opposite walls of the first connecting member 2 are connected to the driving component 1 and the adjusting component 3 respectively.

[0081] In one example, two opposite walls of the first connector 2 are respectively connected to the connecting plate 11 and the adjustment assembly 3. The first connector 2 and the connecting plate 11 can be connected by bonding, welding, or bolting, which is not limited in the embodiment of the present disclosure.

[0082] 3. Adjustment Component 3

[0083] The adjustment component 3 is a component in the pressure head mechanism for adjusting the posture of the pressure head component 4 relative to the driving component 1. Figure 1 As shown, the adjustment assembly 3 includes a floating joint 31 and a plurality of elastic fittings 32 .

[0084] Floating joint 31

[0085] The floating joint 31 is a component in the adjustment assembly 3 used to connect the first connecting member 2 and the pressure head assembly 4 and provide a certain degree of rotational freedom for the pressure head assembly 4 .

[0086] like Figure 1 As shown, one end of the floating joint 31 is connected to the first connecting member 2, and the other end is connected to the pressure head assembly 4. Figure 8 The floating joint 31 includes a first shaft 311, a second shaft 312 and a sleeve 313. The sleeve 313 is provided with a receiving cavity and a ball (not shown). The ball can rotate inside the receiving cavity. The first shaft 311 is partially located inside the receiving cavity and is connected to the ball. The first shaft 311 has a rotational freedom of about 10° relative to the sleeve 313. The second shaft 312 is fixedly connected to the sleeve 313.

[0087] In implementation, a first external thread is provided on the outer ring of the first shaft body 311, a first threaded hole is provided on the wall surface of the first connecting member 2 away from the driving assembly 1, a first internal thread matching the first external thread is provided inside the first threaded hole, the first shaft body 311 is threadedly connected to the first connecting member 2, a second external thread is provided on the outer ring of the second shaft body 312, a second threaded hole is provided on the wall surface of the pressing head assembly 4 close to the driving assembly 1, a second internal thread matching the second external thread is provided inside the second threaded hole, and the second shaft body 312 is threadedly connected to the pressing head assembly 4.

[0088] In this way, the first connecting member 2 and the pressing head assembly 4 can be connected via the floating joint 31 , and the pressing head assembly 4 after connection has a rotational freedom of about 10° relative to the first connecting member 2 .

[0089] Elastic fittings 32

[0090] The elastic member 32 is a component in the adjustment assembly 3 for providing elastic force to achieve resetting.

[0091] like Figure 1 As shown, a plurality of elastic fittings 32 are distributed on both sides of the floating joint 31, and one end is connected to the first connecting member 2. The connection mode between the elastic fitting 32 and the first connecting member 2 and the connection mode between the floating joint 31 and the first connecting member 2 can be the same or different, and the embodiment of the present disclosure does not limit this.

[0092] Exemplarily, the elastic joint 32 and the first connecting member 2 as well as the floating joint 31 and the first connecting member 2 are connected by bolts.

[0093] In some possible embodiments, reference Figure 1 The adjustment assembly 3 includes two elastic fittings 32 , the floating joint 31 is located on the connecting line of the two elastic fittings 32 , and the distances between the floating joint 31 and the two elastic fittings 32 are equal.

[0094] Exemplarily, the elastic member 32 may be a spring.

[0095] In some possible embodiments, Figure 5 As shown, the elastic joint 32 includes a support sleeve 321, a sliding steel ball 322 and an elastic sub-component 323. The support sleeve 321 is connected to the first connecting member 2 by bolts.

[0096] like Figure 5 As shown, a receiving through hole 300 extending along the first direction is provided inside the support sleeve 321. The sliding steel ball 322 is at least partially located in the receiving through hole 300 and is in contact with the pressure head assembly 4. The elastic sub-component 323 is located in the receiving through hole 300, and its two ends are respectively in contact with the first connecting member 2 and the sliding steel ball 322.

[0097] In one example, the diameter of the receiving through hole 300 gradually decreases along the first direction.

[0098] Optionally, the aperture of the accommodating through hole 300 at one end close to the first connecting member 2 is equal to the diameter of the sliding steel ball 322 , and the aperture of the accommodating through hole 300 at one end away from the first connecting member 2 is smaller than the diameter of the sliding steel ball 322 .

[0099] Exemplarily, the diameter of the end of the accommodating through hole 300 away from the first connecting member 2 is D1, the diameter of the sliding steel ball 322 is d1, and D1 and d1 satisfy D1=0.98d1.

[0100] In implementation, the sliding steel ball 322 and the elastic sub-component 323 are sequentially assembled into the accommodating through hole 300 from an opening at one end of the accommodating through hole 300 close to the first connecting member 2, and when the elastic sub-component 323 is flush with the opening on a side close to the first connecting member 2, the elastic sub-component 323 exerts a thrust in a first direction on the sliding steel ball 322.

[0101] In one example, two receiving through holes 300 are arranged inside the support sleeve 321, and the two receiving through holes 300 are distributed in a third direction, which is perpendicular to the connecting line of the two elastic joints 32. A sliding steel ball 322 and an elastic sub-component 323 are arranged in each receiving through hole 300.

[0102] Below, refer to Figure 4 and Figure 5 , the motion state of the elastic joint 32 is introduced in detail:

[0103] (1) Initial state. The support sleeve 321 is provided with a first accommodating through hole 300a and a second accommodating through hole 300b along the third direction. When the pressing head assembly 4 is not in contact with the part to be pressed, the elastic sub-components 323 in the first accommodating through hole 300a and the second accommodating through hole 300b are both in a compressed state, and the sliding steel balls 322 in the first accommodating through hole 300a and the second accommodating through hole 300b are both against the pressing head assembly 4.

[0104] (2) The pressing head assembly 4 rotates in the first circumferential direction. After the pressing head assembly 4 contacts the part to be pressed, when the pressing head assembly 4 rotates in the first circumferential direction, the elastic sub-component 323 in the first receiving through hole 300a is compressed and shortened. At the same time, the sliding steel ball 322 in the first receiving through hole 300a slides relative to the pressing head assembly 4, and the sliding steel ball 322 in the second receiving through hole 300b separates from the pressing head assembly 4.

[0105] (3) The pressing head assembly 4 rotates in the second circumferential direction. After the pressing head assembly 4 contacts the part to be pressed, when the pressing head assembly 4 rotates in the second circumferential direction, the elastic sub-component 323 in the second receiving through hole 300b is compressed and shortened. At the same time, the sliding steel ball 322 in the second receiving through hole 300b slides relative to the pressing head assembly 4, and the sliding steel ball 322 in the first receiving through hole 300a separates from the pressing head assembly 4.

[0106] (4) Restoration state: After the pressing head assembly 4 is separated from the component to be pressed, the elastic component 32 is restored to its initial state under the elastic force of the corresponding elastic subcomponent 323 .

[0107] In one example, the elastic sub-component 323 is a rectangular spring. In this way, under the same material conditions, the elastic sub-component 323 has a larger elastic coefficient, thereby increasing the service life and connection strength of the elastic joint 32.

[0108] 4. Press head assembly 4

[0109] The pressing head assembly 4 is a component in the pressing head mechanism used for contacting with the belt pressing parts.

[0110] like Figure 1 As shown, the pressure head assembly 4 is located on a side of the adjustment assembly 3 away from the first connecting member 2, and is respectively connected to the other end of the floating joint 31 and the other end of the elastic joint 32.

[0111] In some possible embodiments, the press head assembly 4 includes a press head adapter 41 and a rubber-encapsulated press head 42 .

[0112] like Figure 2As shown, the pressure head adapter 41 has a plate-like structure, is located on the side of the adjustment component 3 away from the first connecting member 2, and is respectively connected to the other end of the floating joint 31 and the other end of the elastic joint 32, and has a limiting protrusion structure 411 at one end of the pressure head adapter 41 away from the adjustment component 3. The rubber-coated pressure head 42 is located on the side of the pressure head adapter 41 away from the adjustment component 3, and a limiting groove structure 421 matching the limiting protrusion structure 411 is provided on the side of the rubber-coated pressure head 42 close to the pressure head adapter 41, and the limiting groove structure 421 is clamped with the limiting protrusion structure 411.

[0113] The connection between the pressure head adapter 41 and the rubber-coated pressure head 42 can be bonding, riveting, or connected by bolts, which is not limited in the embodiment of the present disclosure.

[0114] In some possible embodiments, a conical blind hole (not shown) is provided on the wall surface of the pressure head adapter 41 close to the elastic engaging member 32 , and the conical blind hole is used to limit the sliding steel ball 322 .

[0115] In one example, the adjustment component 3 includes two elastic parts 32, each of which is provided with two sliding steel balls 322, and the wall surface of the pressure head adapter 41 close to the elastic parts 32 is provided with four conical blind holes, each of which is used to accommodate a sliding steel ball 322. In this way, the contact mode between the sliding steel ball 322 and the pressure head adapter 41 can be adjusted from point contact to line contact, thereby improving the stability of the sliding steel ball 322 during the sliding process.

[0116] Below, some optional structural features of the embodiments of the present disclosure are introduced:

[0117] Structural feature 1: The adjustment assembly 3 also includes a plurality of supporting components 33 .

[0118] The support assembly 33 is a component in the adjustment assembly 3 for improving the connection stability. Figure 2 As shown, the plurality of supporting parts 33 correspond to the plurality of elastic parts 32 one by one, the supporting parts 33 are located on the side of the elastic parts 32 away from the floating joint 31, and the two ends are respectively connected to the first connecting member 2 and the pressing head assembly 4.

[0119] In one example, the support assembly 33 includes a planar motion ball positioning screw 331 and a support subassembly 332 .

[0120] like Figure 3 As shown, the fixed end 3311 of the plane moving steel ball positioning screw 331 is connected to the first connecting member 2 .

[0121] In practice, the outer ring of the fixed end 3311 of the plane dynamic steel ball positioning screw 331 is provided with a third external thread, and the wall surface of the first connecting member 2 close to the plane dynamic steel ball positioning screw 331 is provided with a third threaded hole, and the third threaded hole is provided with a third internal thread matched with the third external thread, and the plane dynamic steel ball positioning screw 331 is threadedly connected with the first connecting member 2. In this way, the connection stability between the plane dynamic steel ball positioning screw 331 and the first connecting member 2 can be improved.

[0122] like Figure 3 As shown, the supporting sub-component 332 is connected to the pressing head assembly 4 .

[0123] In practice, the outer ring of the end of the support sub-component 332 away from the first connecting member 2 is provided with a fourth external thread, the wall surface of the pressure head adapter 41 close to the driving assembly 1 is provided with a fourth threaded hole, the fourth threaded hole is provided with a fourth internal thread matching the fourth external thread, and the support sub-component 332 is threadedly connected to the pressure head adapter 41. In this way, the connection stability between the support sub-component 332 and the pressure head adapter 41 can be improved.

[0124] refer to Figure 3 The support surface 3321 of the support sub-component 332 is in contact with the steel ball 3312 of the plane moving steel ball positioning screw 331. The support surface 3321 of the support sub-component 332 is the wall surface of the support sub-component 332 away from the pressure head adapter 41.

[0125] Optionally, the support surface 3321 may be a curved surface, so that the fit between the steel ball 3312 and the support surface 3321 can be improved, thereby improving the connection stability between the support sub-component 332 and the plane dynamic steel ball positioning screw 331.

[0126] Furthermore, in the fixed end 3311 of the planar moving steel ball positioning screw 331, an accommodating cavity (not shown) is provided at one end of the fixed end 3311 away from the first connecting member 2, and the accommodating cavity is used to accommodate the steel ball 3312, and the steel ball 3312 can rotate in the accommodating cavity.

[0127] In implementation, the support sub-component 332 is threadedly connected to the pressure head adapter 41, and the plane dynamic steel ball positioning screw 331 is threadedly connected to the first connecting member 2. The technician adjusts the depth of the fixed end 3311 screwed into the third threaded hole and the depth of the support sub-component 332 screwed into the pressure head adapter 41. At this time, the distance from the end of the steel ball 3312 away from the first connecting member 2 to the first connecting member 2 is the first length, and the distance from the end of the support surface 3321 close to the pressure head adapter 41 to the pressure head adapter 41 is the second length. The technician can adjust the first length and the second length by adjusting the first length and the second length. The specific values ​​of the two lengths are such that the sum of the first length and the second length is equal to the distance from the ram adapter 41 to the first connecting member 2, so that the steel ball 3312 fits against the support surface 3321, and the steel ball 3312 slides on the support surface 3321. The support surface 3321 has a rotational freedom of approximately 20° in the first circumferential direction or the second circumferential direction relative to the plane moving steel ball positioning screw 331. Limited by the rotational freedom of the floating joint 31, the ram adapter 41 has a rotational freedom of approximately 10° in the first circumferential direction or the second circumferential direction relative to the first connecting member 2.

[0128] In this way, when the posture of the ram adapter 41 changes, the steel ball 3312 can rotate on the support surface 3321, and the support assembly 33 supports the ram adapter 41 on both sides of the floating joint 31, so that the ram adapter 41 can only rotate in the first circumferential direction or the second circumferential direction, thereby improving the connection stability of the adjustment component 3.

[0129] Optionally, the center of the ball of the floating joint 31 is located in the plane where the support surface 3321 is located.

[0130] In one example, the support surface 3321 is a plane and is parallel to the pressure head adapter 41. For any support sub-component 332, the second length is equal to the distance from the ball center of the floating joint 31 to the pressure head adapter 41. In this way, the pressure head adapter 41 can be prevented from rotating in a direction perpendicular to the first circumferential direction and / or the second circumferential direction, thereby improving the connection stability of the adjustment assembly 3.

[0131] Optionally, the supporting component 33 further includes a locking nut 333 .

[0132] like Figure 3 As shown, the outer wall of the supporting sub-component 332 is provided with an external thread and is threadedly connected to the pressing head assembly 4 . The locking nut 333 is sleeved on the outer ring of the supporting sub-component 332 and is attached to the pressing head assembly 4 .

[0133] In practice, the outer wall of the support sub-component 332 is provided with a fourth external thread, the inner ring of the locking nut 333 is provided with a fourth internal thread matching the fourth external thread, the locking nut 333 is threadedly connected to the support sub-component 332, and is in contact with the wall surface of the pressure head adapter 41 close to the first connecting member 2. After being squeezed by the plane dynamic steel ball positioning screw 331, the support sub-component 332 may rotate and further screw into the fourth threaded hole, causing the support surface 3321 to separate from the steel ball 3312. The additional locking nut 333 can prevent the support sub-component 332 from being further screwed into the fourth threaded hole, thereby ensuring that the steel ball 3312 is in contact with the support surface 3321.

[0134] Structural feature 2: The pressure head mechanism also includes a pressure sensor 5.

[0135] like Figure 6 As shown, the pressure sensor 5 is located between the first connector 2 and the connecting plate 11, and its two ends are respectively connected to the first connector 2 and the connecting plate 11. The connection between the pressure sensor 5 and the first connector 2 and the connecting plate 11 can be bonding or welding, which is not limited in the embodiment of the present disclosure.

[0136] Exemplarily, two ends of the pressure sensor 5 are respectively connected to the first connecting member 2 and the connecting plate 11 by bolts.

[0137] In some possible embodiments, a control unit is further provided in the assembly device, and the control unit is electrically connected to the pressure sensor 5 and the solenoid valve 123 in the pressure head mechanism.

[0138] In implementation, the pressure sensor 5 is used to detect the pressure between the first connector 2 and the connecting plate 11, and send the pressure data to the control unit. When the pressure data is less than the preset value, the rubber-coated pressure head 42 is not in contact with the part to be pressed, or the rubber-coated pressure head 42 is in contact with the part to be pressed but the preset pressure is not reached. In this case, the control unit controls the solenoid valve 123 connected to the first air inlet to be in an open state, and the solenoid valve connected to the second air inlet to be in a closed state, so that the rubber-coated pressure head 42 continues to move in the first direction. When the pressure data is greater than or equal to the preset value, the rubber-coated pressure head 42 is in contact with the part to be pressed and reaches the preset pressure. In this case, the control unit controls the solenoid valve 123 connected to the first air inlet to be in a closed state, and the solenoid valve connected to the second air inlet to be in an open state, so that the rubber-coated pressure head 42 moves in the second direction, or the control unit controls both of the above-mentioned solenoid valves 123 to be in a closed state, so that the rubber-coated pressure head stays at the current position to maintain the pressure on the part to be pressed.

[0139] The technical solution provided by the embodiments of the present disclosure includes at least the following beneficial effects:

[0140] The disclosed embodiment provides a pressing head mechanism, in which the driving assembly 1 is used to drive the first connecting member 2 to move along the first direction or the second direction, the adjusting assembly 3 includes a floating joint 31 and a plurality of elastic fittings 32, the plurality of elastic fittings 32 are distributed on both sides of the floating joint 31, one end of the floating joint 31 is connected to the first connecting member 2, one end of the elastic fitting 32 is connected to the first connecting member 2, and the pressing head assembly 4 is connected to the other end of the floating joint 31 and the other end of the elastic fitting 32. In this way, the two ends of the floating joint 31 are respectively connected to the pressing head assembly 4 and the first connecting member 2, that is, the pressing head assembly 4 and the first connecting member 2 are flexibly connected, and the pressing head assembly 4 can rotate relative to the first connecting member 2. After the pressing head assembly 4 contacts the pressing component, while the driving assembly 1 continues to drive the first connecting member 2 to move, the pressing head assembly 4 can automatically complete the posture adjustment according to the structure of the component under the action of the floating joint 31 and the elastic fitting 32. After the driving component 1 drives the first connecting member 2 to separate the pressing head assembly 4 from the component, the pressing head assembly 4 can be reset under the elastic force of the elastic fitting 32. During the whole process, the technician does not need to manually adjust the posture of the pressing head assembly 4, thereby reducing the difficulty of debugging the equipment and improving the pressing efficiency of the parts.

[0141] An embodiment of the present disclosure provides an assembly device, which includes the above-mentioned pressing head mechanism.

[0142] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A pressure head mechanism, characterized in that: The pressing head mechanism comprises a driving assembly (1), a first connecting member (2), an adjusting assembly (3) and a pressing head assembly (4); The driving component (1) is connected to the first connecting member (2), and the driving component (1) is used to drive the first connecting member (2) to move along a first direction or a second direction, wherein the first direction is opposite to the second direction; The adjustment assembly (3) comprises a floating joint (31) and a plurality of elastic fittings (32), wherein the plurality of elastic fittings (32) are distributed on both sides of the floating joint (31), one end of the floating joint (31) is connected to the first connecting member (2), and one end of the elastic fitting (32) is connected to the first connecting member (2); The pressure head assembly (4) is connected to the other end of the floating joint (31) and the other end of the elastic fitting (32).

2. The pressure head mechanism according to claim 1, characterized in that: The adjustment assembly (3) further comprises a plurality of supporting parts (33), wherein the plurality of supporting parts (33) correspond one-to-one to the plurality of elastic parts (32), and the supporting parts (33) are located on a side of the elastic parts (32) away from the floating joint (31), and the two ends of the supporting parts (33) are respectively connected to the first connecting member (2) and the pressure head assembly (4).

3. The pressure head mechanism according to claim 2, characterized in that: The support assembly (33) comprises a planar dynamic steel ball positioning screw (331) and a support subassembly (332); The fixed end (3311) of the planar dynamic steel ball positioning screw (331) is connected to the first connecting member (2); The supporting sub-component (332) is connected to the pressure head assembly (4), and the supporting surface (3321) of the supporting sub-component (332) is in contact with the steel ball (3312) of the plane moving steel ball positioning screw (331).

4. The pressure head mechanism according to claim 3, characterized in that: The center of the ball of the floating joint (31) is located in the plane where the supporting surface (3321) is located.

5. The pressure head mechanism according to claim 3, characterized in that: The supporting assembly (33) further comprises a locking nut (333); The outer wall of the supporting sub-component (332) is provided with an external thread and is threadedly connected to the pressing head assembly (4); the locking nut (333) is sleeved on the outer ring of the supporting sub-component (332) and is in contact with the pressing head assembly (4).

6. The pressure head mechanism according to claim 1, characterized in that: The elastic component (32) comprises a support sleeve (321), a sliding steel ball (322) and an elastic subcomponent (323); The support sleeve (321) is connected to the first connecting member (2), and the support sleeve (321) is provided with a receiving through hole (300) extending along the first direction; The sliding steel ball (322) is at least partially located in the accommodating through hole (300) and is in contact with the pressing head assembly (4); The elastic sub-component (323) is located in the accommodating through hole (300), and two ends thereof are respectively in contact with the first connecting component (2) and the sliding steel ball (322).

7. The pressure head mechanism according to claim 6, characterized in that: The elastic sub-component (323) is a rectangular spring.

8. The pressure head mechanism according to claim 1, characterized in that: The driving assembly (1) comprises a connecting plate (11), a slide cylinder (12), a photoelectric switch (13) and a baffle (14); The connecting plate (11) is connected to the first connecting member (2); The telescopic rod (121) of the slide cylinder (12) is connected to the connecting plate (11), and the slide cylinder (12) is used to: drive the first connecting member (2) to move along the first direction when the telescopic rod (121) is in an extended state, and drive the first connecting member (2) to move along the second direction when the telescopic rod (121) is in a retracted state; The photoelectric switch (13) is connected to the slide cylinder (12), and the photoelectric switch (13) is provided with an air avoidance area (100); The blocking piece (14) is located in the air avoidance area (100) and is connected to the connecting plate (11).

9. The pressure head mechanism according to claim 8, characterized in that: The pressure head mechanism also includes a pressure sensor (5); The pressure sensor (5) is located between the first connecting member (2) and the connecting plate (11), and two ends thereof are respectively connected to the first connecting member (2) and the connecting plate (11).

10. An assembly device, characterized in that: The assembly device comprises a pressing head mechanism as claimed in any one of claims 1 to 9.

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