A housing press riveting connection device and method

Abstract

The present invention provides a housing press riveting connection device for manufacturing an element with a combined housing. The combined housing includes an upper housing and a metal lower housing. At the upper end of the metal lower housing, a cylindrical thin wall is formed that tightly sleeves downward outside the lower end of the upper housing. After the upper end of the cylindrical thin wall is wound inward from the vertical initial state to the final state, a curled edge that is hermetically pressed on the upper housing is formed. It includes two forming mechanisms, and these two mechanisms include: a first forming mechanism for winding the upper end of the cylindrical thin wall from the initial state inward to an intermediate state, which has a forming surface, namely an intermediate forming surface, adapted to the outer contour edge of the upper end of the cylindrical thin wall in the intermediate state; and a second forming mechanism for winding the upper end of the cylindrical thin wall from the intermediate state inward to the final state, which has a forming surface, namely a final forming surface, adapted to the outer contour edge of the upper end of the cylindrical thin wall in the final state.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical connection, and in particular to a shell riveting connection device and method. Background Art

[0002] Many products have a shell for forming an internal accommodating cavity, and these shells are usually connected by at least two parts. Figure 1 , Figure 2 Taking a typical sensor as shown, the housing of the sensor includes a plastic part (upper shell 011) on the upper side and a metal part (metal lower shell 012) on the lower side, and a sensor cavity is defined between the two, and the inner cavity is used to accommodate a sensitive element 015. Among them, the upper end of the metal lower shell 012 forms a cylindrical thin wall 013 that is tightly sleeved downward on the lower end of the upper shell 011, and the upper end 022a of the cylindrical thin wall is processed to form a circle of inward curling edge 014a, so that it is pressed downward on the upper shell 011 (for example, a step formed on it), so that the metal lower shell 012 is tightly connected to the cylindrical thin wall 013 to meet the airtightness requirements. There are various ways to connect these shell parts, but generally they need to be selected according to the material properties of each part of the shell. However, for sensors, due to their small size and high airtightness requirements, the requirements are more stringent. The present invention is used to effectively and well connect the two parts of a component shell with a metal part like this.

[0003] The statements in this section merely provide background information related to the present application and may not constitute prior art. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present application provides a shell riveting connection device to effectively perform riveting connection on a combined shell having a metal part.

[0005] The present invention provides a shell riveting connection device, which is used to manufacture a component with a combined shell, wherein the combined shell includes an upper shell and a metal lower shell, wherein the upper end of the metal lower shell forms a cylindrical thin wall which is tightly sleeved downward on the outer side of the lower end of the upper shell, and the upper end of the cylindrical thin wall is rolled inward from a vertical initial state to a final state to form a circle of curling edges which are sealed and pressed against the upper shell, and the combined shell includes two forming mechanisms, which include:

[0006] A first molding mechanism for rolling the upper end of the cylindrical thin wall inward from an initial state to an intermediate state, the first molding mechanism having an intermediate molding surface adapted to the outer contour edge of the upper end of the cylindrical thin wall in the intermediate state;

[0007] And a second forming mechanism for rolling the upper end of the cylindrical thin wall inward from the intermediate state to the final state, which has a final forming surface that matches the outer contour edge of the upper end of the cylindrical thin wall in the final state.

[0008] Preferably, the forming mechanism comprises a punching head, a lower end opening is provided in the middle of the lower end of the punching head to accommodate the clearance cavity into which the upper end of the sensor extends upward, and the forming surface is arranged at the edge of the lower end opening.

[0009] Preferably, the forming mechanism includes a connecting head, on which is fixed at least one roller mounting bracket whose upper end is fixed to the connecting head, and the lower end of the roller mounting bracket is provided with a roller or a spinning disk having the forming surface, and the central axis of the roller or the spinning disk is coplanar with the central axis of the cylindrical thin wall.

[0010] Preferably, the first forming mechanism and the second forming mechanism are arranged in pairs; for each pair of the first forming mechanism and the second forming mechanism, it includes a roller mounting bracket whose upper end is swingably arranged on a connecting head along a horizontal rotating axis, and the roller mounting brackets of the two are fixedly connected, and the lower end of one of the roller mounting brackets is provided with a roller or a spinning disk with an intermediate forming surface at one end facing the sensor, and the lower end of the other roller mounting bracket is provided with a roller or a spinning disk with a final forming surface at one end facing the sensor, and the central axis of the roller or the spinning disk is coplanar with the central axis of the cylindrical thin wall; when the roller mounting bracket swings to one side limit, the intermediate forming surface presses against the upper end of the cylindrical thin wall, and when the roller mounting bracket swings to the other side limit, the final forming surface presses against the upper end of the cylindrical thin wall.

[0011] Preferably, the shell riveting connection device also includes a first position conversion mechanism for exchanging the relative positions of the first molding mechanism, the second molding mechanism and the same sensor, or also includes a second position conversion mechanism for exchanging the relative molding positions of the first molding mechanism, the second molding mechanism and two sensors.

[0012] Preferably, the first position conversion mechanism is a rotational conversion mechanism that can rotate along a vertical axis or a horizontal axis, and the first molding mechanism and the second molding mechanism are connected to the rotational conversion mechanism; when the rotational conversion mechanism rotates to a first angle, the molding surface of the first molding mechanism presses against the upper end of the cylindrical thin wall, and the molding surface of the second molding mechanism is separated from the upper end of the cylindrical thin wall; when the rotational conversion mechanism rotates to a second angle, the molding surface of the second molding mechanism presses against the upper end of the cylindrical thin wall, and the molding surface of the first molding mechanism is separated from the upper end of the cylindrical thin wall.

[0013] Preferably, the first position conversion mechanism includes two linear drive mechanisms, namely, a first linear drive mechanism and a second linear drive mechanism, which respectively drive the first forming mechanism and the second forming mechanism to move radially. When the first linear drive mechanism drives the forming surface of the first forming mechanism to press against the upper end of the cylindrical thin wall, the second linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end of the cylindrical thin wall. When the second linear drive mechanism drives the forming surface of the second forming mechanism to press against the upper end of the cylindrical thin wall, the linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end of the cylindrical thin wall.

[0014] Preferably, the first forming mechanism includes at least two first split forming blocks. The first split forming blocks can be driven by a closing device to gather towards the central axis of the cylindrical thin wall to squeeze the upper end of the cylindrical thin wall and circumferentially join to form a forming die head. The intermediate forming surface is arranged on the inner lower side of the forming die head.

[0015] Preferably, the closing device includes a punch head and a plurality of sliding rods, one end of which is fixedly connected to the radially outer end of the first split forming block. The sliding rods are horizontally arranged, and the other end thereof movably passes through a guiding member and is fixedly connected to an anti - detachment plate. A return spring is sleeved on the sliding rod, and the return spring is located between the guiding member and the anti - detachment plate. The lower end of the punch head is provided with a plurality of first inclined guiding surfaces, and the first split forming block is correspondingly provided with second inclined guiding surfaces that correspondingly press against the first inclined guiding surfaces. One end of the first inclined guiding surface is inclined upward relative to the other end.

[0016] Preferably, the punch head is provided with a relief groove for the sliding rod to pass through.

[0017] Preferably, a limiting plate is arranged on the outer side of the anti - detachment plate.

[0018] Preferably, the closing device includes a punch head, a seat cylinder sleeved outside the punch head, and a plurality of sliding rods, one end of which is fixedly connected to the radially outer end of the first split forming block. The sliding rods are horizontally arranged, and the other end thereof movably passes through the seat cylinder and is fixedly connected to an anti - detachment plate. A return spring is sleeved on the sliding rod, and the return spring is located between the outer wall of the seat cylinder and the anti - detachment plate. The lower end of the punch head is provided with a plurality of first inclined guiding surfaces, and the first split forming block is correspondingly provided with second inclined guiding surfaces that correspondingly press against the first inclined guiding surfaces. One end of the first inclined guiding surface is inclined upward relative to the other end.

[0019] Preferably, the first forming mechanism includes at least two first split forming blocks. The first split forming blocks can be driven by a closing device to gather towards the central axis of the cylindrical thin wall to squeeze the upper end of the cylindrical thin wall and circumferentially join to form a forming die head. The intermediate forming surface is arranged on the inner lower side of the forming die head. The closing device includes a hydraulic drive mechanism that drives the plurality of first split forming blocks to move radially one by one.

[0020] The present invention also correspondingly provides a method for press riveting connection of a housing, which is used to manufacture an element having a combined housing. The combined housing includes an upper housing and a lower metal housing. The upper end of the lower metal housing forms a cylindrical thin wall that tightly sleeves outside the lower end of the upper housing downward. After the upper end of the cylindrical thin wall is rolled inward from the vertical initial state to the final state, a curled edge that is hermetically pressed on the upper housing is formed. The method includes the steps of:

[0021] Using the above-mentioned first forming mechanism to roll the upper end of the cylindrical thin wall inward from the initial state to an intermediate state;

[0022] Using the above-mentioned second forming mechanism to roll the upper end of the cylindrical thin wall inward from the intermediate state to the final state. Description of the Drawings

[0023] Figure 1 It is a three-dimensional view of a typical structure of the sensor 01 to be processed by the present invention;

[0024] Figure 2 It is a cross-sectional view of a typical structure of the sensor 01 to be processed by the present invention;

[0025] Figure 3 is Figure 2 an enlarged schematic view of the partial A shown in;

[0026] Figure 4 and Figure 5 It is a schematic view of the combination of the first housing press riveting connection device of the present invention and the sensor 01;

[0027] Figure 6 It is a partial structural schematic view of the combination of the second housing press riveting connection device of the present invention and the sensor 01;

[0028] Figure 7 It is a partial structural schematic view of the combination of the third housing press riveting connection device of the present invention and the sensor 01;

[0029] Figure 8 and Fig. 9 It is a partial structural schematic view of the combination of the fourth housing press riveting connection device of the present invention and the sensor 01;

[0030] Fig.10 It is a structural schematic view of the combination of the fifth housing press riveting connection device of the present invention and the sensor 01;

[0031] Fig.11 It is a partial structural schematic view of the combination of the sixth housing press riveting connection device of the present invention and the sensor 01;

[0032] Fig.12Partial structural schematic diagram of the combination of the seventh housing riveting connection device of the present invention and the sensor 01;

[0033] Fig.13 Partial structural schematic diagram of the combination of the eighth housing riveting connection device of the present invention and the sensor 01;

[0034] Fig.14 Schematic diagram of the combination of the ninth housing riveting connection device of the present invention and the sensor 01;

[0035] Fig.15 Stereoscopic schematic diagram of the stamping head 5 of the ninth housing riveting connection device of the present invention;

[0036] Fig.16 Schematic diagram of the combination of the tenth housing riveting connection device of the present invention and the sensor 01;

[0037] Fig.17 、 Fig.18 Schematic diagram of the combination of the eleventh housing riveting connection device of the present invention and the sensor 01;

[0038] Fig.19 Partial structural schematic diagram of the combination of the twelfth housing riveting connection device of the present invention and the sensor 01;

[0039] In the figure: 01, sensor; 011, upper shell; 012, lower shell made of metal; 013, cylindrical thin wall; 014a, curled edge; 015, sensitive element; 01a, vertical state; 01b, intermediate state; 01c, horizontal state; 022a, upper end of the cylindrical thin wall; 022b, intermediate forming surface; 022c, final forming surface; 023, smooth transition part; 1, first forming device; 101, connector; 102, roller mounting bracket; 103, roller mounting part; 104, connecting part; 104a, rotating shaft; 105, roller; 105a, pin shaft; 105b, drive shaft; 106, forming column; 106a, short roller; 106b, first spinning disc; 106c, second spinning disc; 109, fastener; 120, pressing device; 121, pressing rod; 122, press head connector; 123, press head; 201, bottom plate; 301, seat plate; 302, seat cylinder; 401, second inclined guiding surface; 402, guiding part; 402a, guiding plate; 403, sliding rod; 404, return spring; 405, anti - detachment plate; 406, limiting plate; 407, relief groove; 408, side - moving hydraulic cylinder; 40a, first part - splitting and forming block; 40b, second part - splitting and forming block; 5, stamping head; 501, relief cavity; 502, first inclined guiding surface; 901, support frame; 902, table top panel; 903, horizontal rotating frame; 905, piston rod; 906, bushing; 907, lifting hydraulic cylinder; 910, holding seat; 911, rotating motor; 912, rotating motor mounting frame; 913, synchronous pulley; 914, synchronous belt; 915, bearing; 92, horizontal rotating mechanism; 922, servo motor; 923, coupling; 925, mounting plate; 926, fixed outer cylinder; 927, mandrel; 928, bearing; 930, vertical plate; 931, motor mounting frame; Detailed implementation manners

[0040] The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application. In the following description, the same reference numerals are used to represent the same or equivalent elements, and repeated descriptions are omitted.

[0041] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0042] In addition, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] It should be further understood that the term "and / or" used in the specification and the corresponding claims of this application refers to any combination and all possible combinations of one or more of the listed items.

[0044] As Figure 2 、 Figure 3 shown, in a typical sensor to be manufactured in the present invention, the crimp 014a is preferably perpendicular to the axial direction and the outer wall surface (i.e., the up and down direction in the figure) of the cylindrical thin wall 013 after forming, that is, the upper end 022a of the cylindrical thin wall is formed from the Figure 3 P0 state shown to the P2 state (horizontal state). This can make the combination between the upper shell 011 and the metal lower shell 012 more firm, but this has a higher manufacturing difficulty. Specifically, if directly formed by stamping at one time, since the inner side wall of the forming cavity of the stamping die must be set vertically, it is easy to damage the top of the upper end 022a of the cylindrical thin wall by the top surface of the forming cavity of the stamping die, and since the deformation amount is large, it is easy to damage the plastic upper shell 011 and ultimately affect the sealing performance and appearance of the shell. For ease of description, in Figure 3 the position where the upper end 022a of the cylindrical thin wall changes from the vertical P0 state (original state) to the horizontal P2 state (final state) through the P1 state (intermediate state) is also exemplarily given by a dashed line, and the forming surface shapes corresponding to the intermediate state and the final state are respectively marked with 022b (intermediate forming surface 022b) and 022c (final forming surface 022c).

[0045] Among them, the final forming surface 022c is adapted to (coincides with or is tangent to) the outer contour of the upper end of the formed cylindrical thin wall 013, that is, it includes a vertical forming surface (i.e., side forming surface) corresponding to the outer wall surface of the cylindrical thin wall 013 and a horizontal forming surface (i.e., upper forming surface) corresponding to the outer wall surface of the crimp 014a (i.e., the upper side surface of the crimp 014a in the figure). Similarly, the intermediate forming surface 022b is adapted to the outer contour of the upper end of the cylindrical thin wall 013 in the intermediate forming state, that is, it includes a vertical forming surface corresponding to the outer wall surface of the cylindrical thin wall 013 and an inclined forming surface corresponding to the outer wall surface of the crimp 014a in the intermediate state (i.e., the upper side surface of the crimp 014a in the figure).

[0046] The molding surface corresponding to the atypical sensor 01 (the curling edge 014a is not ultimately horizontal), or the molding surface in which the curling edge 014a of the typical sensor is only molded to an intermediate state, the ultimately molded cylindrical thin wall 013 and the corresponding upper molding surface are not horizontal, but are inclined relative to the horizontal plane.

[0047] In the following specific embodiments, the shell riveting connection mechanism or device (also referred to as the riveting forming mechanism / device) is a mechanism or device that can at least partially rivet the curling edge 014a; they can be in a whole-part relationship. For a clearer description, these mechanisms or devices may be given serial numbers corresponding to the embodiments (e.g., first, second, etc.).

[0048] First embodiment:

[0049] See also Figure 4 , Figure 5 . In the first embodiment of the present invention, the first shell riveting connection device includes a punch head 5, and the upper end of the punch head 5 is provided with a connection hole for connecting to the lower end of a liftable pressure transmission member (such as a pressure rod). A lower end opening is provided in the middle of the lower end of the clearance cavity 501 to accommodate the clearance cavity 501 into which the upper end of the sensor extends upward. The edge of the lower end opening is provided with a final forming surface 022 that is adapted to the outer contour edge of the cylindrical thin wall 013 in the P3 state. A smooth transition portion 023 is formed at the connection between the vertical forming surface and the horizontal forming surface, such as a chamfer or a straight chamfer, but a round chamfer is more preferred.

[0050] The first shell riveting connection device in this embodiment can be used when the curling edge 014a is subjected to the next stamping forming (by Figure 3 Press down to the height shown Figure 4 The upper end of the cylindrical thin wall 013 is gradually deformed to a horizontal position.

[0051] In some other embodiments, preferably, the edge of the lower end opening is provided with a final molding surface 022b that is adapted to the outer contour edge of the cylindrical thin wall 013 in the P2 state, and it can be partially molded at this time.

[0052] Second embodiment:

[0053] Please refer to Figure 6。In this embodiment, the second housing riveting connection device includes a connection head 101. The upper end of the connection head 101 is provided with a connection hole for connecting with the lower end of a liftable pressure transmission member (such as a pressure rod). At least one roller mounting bracket 102 is fixed on the connection head 101. The upper end of the roller mounting bracket 102 is provided with a connection portion 104. The connection portion 104 is fixedly connected to the outer side wall of the connection head 101, and the lower end of the roller mounting bracket 102 extends downward to form a roller mounting portion 103.

[0054] An axially horizontally arranged roller 105 is provided on the roller mounting portion 103. The central axis of the roller 105 is coplanar with the central axis of the cylindrical thin wall 013. Among them, the roller 105 includes a roller body, and a forming column 106 formed axially horizontally at one end of the roller 105 facing the connection head 101. A forming surface (intermediate forming surface 022b or final forming surface 022c) is formed on the forming column 106. Among them, the roller 105 may include a pin shaft 105a axially horizontally arranged on the roller mounting portion 103. A short roller 106a is fixed to one end of the pin shaft 105a facing the connection head 101 through a fastener 109, and a final forming surface 022c is formed on the short roller 106a. Among them, the sensor 01 may be arranged on a holding seat or a holding mechanism such as a fixture.

[0055] The second housing riveting connection device of this embodiment further includes a rotation driving device for driving the pressure transmission member or driving the sensor 01 to rotate horizontally around the axis of the cylindrical thin wall 013 when the pressure transmission member is pressed downward, so that the roller that can be pressed rolls and presses inward on the upper end of the cylindrical thin wall 013. Since the roller gradually forms the upper edge of the cylindrical thin wall 013 in a small amount over a relatively long circumferential distance during the pressing process, the amount of deformation per unit time is small, and it is not easy to cause damage to the cylindrical thin wall 013 and the upper shell 011 during one-time forming; in an alternative embodiment of this embodiment, the holding seat or fixture for installing the sensor 01 can be rotated horizontally along the axis of the cylindrical thin wall 013, and the pressure transmission member does not rotate, but only moves up and down and then rolls downward to press against the upper end 022a of the cylindrical thin wall.

[0056] Among them, the roller mounting bracket 102 can be set to one or more, preferably three. These multiple roller mounting brackets 102 can be fixedly connected around the connection head 101 at equal intervals. At this time, the connection head 101 is preferably set to be columnar for convenient connection with the connection head 101.

[0057] In some other embodiments, the second housing riveting connection device may further include a pressing device 120 for pressing the sensor 01 downwardly against the holding seat or fixture before or simultaneously when the roller 105 rolls and presses against the upper end of the cylindrical thin wall 013. Specifically, the pressing device 120 includes a pressing head 123 for pressing downwardly against a step surface or top surface of the sensor 01. A pressing head connecting member 122 is fixed to the top of the pressing head 123. The pressing head connecting member 122 is fixedly connected to the connecting head 101 through a pressing rod 121.

[0058] Third Embodiment:

[0059] Please refer to Figure 7 for reference. The third housing riveting connection device of this embodiment can be obtained by making slight changes to the third embodiment. On the basis of the third embodiment, one end (the inner end) of the forming column 106 or the pin shaft 105a in the axial direction facing the connecting head 101 is tilted upward. In this embodiment, the forming surface can be the intermediate forming surface 022b or the final forming surface 022c.

[0060] Fourth Embodiment:

[0061] Please refer to Figure 8 and Fig. 9 for reference. This embodiment combines some features of the second and third embodiments and can be obtained by making the following changes based on the second embodiment:

[0062] The roller mounting brackets 102 provided on the connecting head 101 are changed from at least one to at least a pair. For the forming surfaces on the rollers 105 on each pair of the two roller mounting brackets 102, one is the intermediate forming surface 022b and the other is the final forming surface 022c. The connecting portions 104 of this pair of roller mounting brackets 102 are fixedly connected and rotatably arranged on the connecting head 101 through a rotating shaft 104a. This pair of roller mounting brackets 102 can swing the lower ends of the roller mounting brackets 102 around the rotating shaft 104a under the drive of a swing driving mechanism. In addition, the following settings are also made: even when the roller mounting brackets 102 swing to a limit position (such as the right limit position shown in Figure 6 ), the intermediate forming surface 022b presses against the upper end of the cylindrical thin wall 013 for intermediate forming; and when the lower ends of the roller mounting brackets 102 swing to another limit position (such as the left limit position shown in Figure 7 ), the final forming surface 022c presses against the upper end of the cylindrical thin wall 013 for final forming.

[0063] Among them, when there are multiple pairs of roller mounting brackets 102, the corresponding connecting portions 104 of each pair of roller mounting brackets 102 can be arranged in a vertically staggered manner to avoid interference, and corresponding relief grooves for giving way to other connecting portions 104 can be provided on the corresponding connecting portions 104.

[0064] The fourth housing clinching connection device of this embodiment obtains the final curled edge 014a through two-step forming after the swing roller mounting bracket 102, which can reduce the limitation of the forming surface shape by one-step forming and reduce forming defects.

[0065] Fifth embodiment:

[0066] For the same purpose as the fourth embodiment (i.e., forming the curled edge 014a in two steps), this embodiment will be described below based on an alternative embodiment of the third embodiment.

[0067] Please refer to Fig.10 . In this embodiment, the pressure transmission member is specifically the piston rod 905 of the lifting hydraulic cylinder 907, or the pressure transmission member is fixedly connected to the piston rod 905. In this way, the connecting head 101 is driven by the lifting hydraulic cylinder 907 to move up and down and press downward. This embodiment includes two fifth housing clinching connection mechanisms like the alternative embodiments of the third embodiment. The piston rod 905 is slidably connected to a bushing 906 provided on the horizontal rotating frame 903.

[0068] Moreover, in this embodiment, a horizontal rotation mechanism 92 is used to swap the positions of the two housing clinching connection mechanisms. At the same time, the forming surfaces of the two housing clinching connection mechanisms are set as an intermediate forming surface 022b and a final forming surface 022c. In this way, for the sensor 01 provided below, it is first formed in the middle by the intermediate forming surface 022b, and then finally formed by the final forming surface 022c of the other housing clinching connection mechanism after the positions of the two housing clinching connection mechanisms are swapped.

[0069] Among them, exemplarily, the horizontal rotation mechanism 92 includes a horizontal rotating frame 903. The rotating shaft of the horizontal rotation mechanism 92 is located above the center positions of the two sensors 01 corresponding to the two housing clinching connection mechanisms in the horizontal direction, so that the positions of the two housing clinching connection mechanisms are swapped after rotating half a circle. Therefore, it can also be called a position conversion mechanism. The two ends of the horizontal rotating frame 903 are respectively fixedly connected to the cylinder bodies of the two existing lifting hydraulic cylinders 907 in one-to-one correspondence. The piston rods of the lifting hydraulic cylinders 907 face downward and are fixedly connected to the connecting heads 101 of the two housing clinching connection mechanisms in one-to-one correspondence. A sensor 01 is provided directly below each connecting head 101, and the sensor 01 is held in a rotatable holding seat 910. The holding seat 910 rotates in the horizontal direction under the drive of a driving device.

[0070] The left and right middle parts of the horizontal rotating frame 903 are fixed to the lower end of a vertical mandrel 927. The upper end of the horizontal rotating frame 903 is coaxially fixed to the motor shaft of a servo motor 922 through a coupling 923. The servo motor 922 is fixed on a motor mounting frame 931. The motor mounting frame 931 fixes the upper end of a vertical plate 930, and the lower end of the vertical plate 930 is fixed on a table top plate 902, and the table top plate 902 is fixed on a support frame 901. Among them, a mounting plate 925 is fixed on the motor mounting frame 931, and the mounting plate 925 is fixedly connected to the upper end of a vertically arranged fixed outer cylinder 926. The mandrel 927 is coaxially arranged in the fixed outer cylinder 926, and its upper end is rotatably arranged on the mounting plate 925, and its lower end is rotatably arranged on the lower end of the fixed outer cylinder 926 through a bearing 928.

[0071] Among them, exemplarily, the driving device may include a rotary motor mounting frame 912 fixed to the lower side of the table top plate 902. A rotary motor 911 is fixed on the rotary motor mounting frame 912. The motor shaft of the rotary motor 911 is coaxially fixed to a synchronous pulley 913, and a synchronous belt 914 is used for driving connection between the other synchronous pulley 913 and the above-mentioned synchronous pulley 913. Both synchronous pulleys 913 are axially vertical and are each rotatably arranged on the rotary motor mounting frame 912 through a bearing 915, and are fixedly connected to the holding seats 910 corresponding to the two sensors 01.

[0072] Sixth Embodiment:

[0073] Please refer to Fig.11 , the sixth housing riveting connection device of this embodiment can be changed from the third housing riveting connection device. Specifically, the roller is replaced with a first spinning disc 106b, and its central axis is coplanar with the central axis of the cylindrical thin wall 013. The drive shaft 105b is rotatably arranged on a bracket, and the bracket is fixed on a connector 101. Under the pressure action of the pressure transmission member, the intermediate forming surface 022b formed at the edge of the first spinning disc 106b presses tightly against the upper end of the cylindrical thin wall 013 and is tangent to it to form a curled edge 014a in an intermediate state. Among them, the drive shaft 105b rolls the upper end of the cylindrical thin wall 013 under the drive of a drive motor.

[0074] Seventh Embodiment:

[0075] Please refer to Fig.12, the seventh housing riveting connection device of this embodiment can be changed from the sixth housing riveting connection device. Specifically, the roller is replaced with a second spinning disc 106c, and the drive shaft 105b is rotatably mounted on a bracket, and the bracket is fixed on a connector 101. Under the pressure of the pressure transmission member, the final forming surface 022c formed at the edge of the first spinning disc 106b presses against the upper end of the cylindrical thin wall 013 and is tangent to it, so as to form the intermediate state of the curled edge 014a into the final state of the curled edge 014a.

[0076] Among them, the seventh housing riveting connection device can continue to form the intermediate state of the curled edge 014a into the final state.

[0077] Eighth embodiment:

[0078] Please refer to Fig.13 , the eighth housing riveting connection device can be composed of the sixth housing riveting connection mechanism, the seventh housing riveting connection mechanism and the position conversion mechanism. Among them, the position conversion mechanism can be the horizontal rotation mechanism 92 in the fifth embodiment, or obtained by converting its rotating shaft from vertical to horizontal. Or, the position conversion mechanism includes a rotating plate that fixes the brackets of the sixth housing riveting connection mechanism and the seventh housing riveting connection mechanism. The rotating plate can rotate around a horizontal rotation axis from the first limit to the second limit. When the rotating plate is at the first limit, the first spinning disc 106b of the sixth housing riveting connection mechanism presses against the upper end of the cylindrical thin wall 013 and forms it into an intermediate state of the curled edge 014a; when the rotating plate is at the first limit, the second spinning disc 106c of the seventh housing riveting connection mechanism presses against the intermediate state of the curled edge 014a and forms it into the final state of the curled edge 014a.

[0079] In some other transformed embodiments, in addition to converting positions with each other along the vertical axis or the horizontal axis, the position conversion mechanism can also be a mechanism that realizes the interchange of the relative forming positions with the sensor 01 through translation, or a combination of translation and rotation, or a more complex method.

[0080] For example, the first position conversion mechanism can rotate along a vertical axis or a horizontal axis. The first forming mechanism and the second forming mechanism are connected to the rotation conversion mechanism. When the rotation conversion mechanism rotates to the first angle, the forming surface of the first forming mechanism presses against the upper end of the cylindrical thin wall 022a, and the forming surface of the second forming mechanism is separated from the upper end of the cylindrical thin wall 022a; when the rotation conversion mechanism rotates to the second angle, the forming surface of the second forming mechanism presses against the upper end of the cylindrical thin wall 022a, and the forming surface of the first forming mechanism is separated from the upper end of the cylindrical thin wall 022a up and down.

[0081] Alternatively, the first position conversion mechanism includes two linear drive mechanisms, namely, a first linear drive mechanism and a second linear drive mechanism, which respectively drive the first forming mechanism and the second forming mechanism to move radially (for reference, see Fig.19 ); when the first linear drive mechanism drives the forming surface of the first forming mechanism to press against the upper end (022a) of the cylindrical thin wall, the second linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end 022a of the cylindrical thin wall; when the second linear drive mechanism drives the forming surface of the second forming mechanism to press against the upper end 022a of the cylindrical thin wall, the linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end 022a of the cylindrical thin wall.

[0082] The "relative forming position" referred to herein means a position where the same forming mechanism has the same forming effect on the upper end 022a of the cylindrical thin wall of the sensor 01. For example, for the eighth housing riveting connection device, since the central axis of the cylindrical thin wall 013 is vertical, as long as the first forming mechanism is at the same height relative to the sensor 01, even if the positions are different in the circumferential direction, it can be considered that it is in the same relative forming position relative to the sensor 01.

[0083] Ninth Embodiment:

[0084] Please refer to Fig.14 、 Fig.15 . The ninth housing riveting connection device can be obtained by changing the first housing riveting connection device. Specifically: The ninth housing riveting connection device may further include at least two first split forming blocks 40a. These first split forming blocks 40a can be driven by the closing device to be assembled into a forming die head radially from the outside to the inside along a vertical axis (the central axis of the cylindrical thin wall 013). The intermediate forming surface 022b is not provided on the punching head 5 but on the lower side of the forming die head and the radially inner end of the first split forming block 40a.

[0085] The closing device includes a plurality of horizontal slide bars 403. The radially outer end of the first split molding block 40a corresponds to and is fixedly connected to one end of the slide bar 403. The other end of the slide bar 403 is movably provided with a guide member 402 and then fixedly connected to an anti-slip plate 405. A return spring 404 is sleeved on the slide bar 403. The return spring 404 is located between the guide member 402 and the anti-slip plate 405, thereby giving the first split molding block 40a a radially outward return force. In addition, as part of the closing device, the punch head 5 is provided with a plurality of first inclined guide surfaces 502 at its lower end. The first split molding block 40a is provided with a corresponding second inclined guide surface 401 corresponding to the first inclined guide surface 502, wherein one end of the first inclined guide surface 502 is inclined upward relative to the other end. A clearance groove 407 for the slide bar 403 to pass through can also be provided on the punch head 5, wherein a limit plate 406 can be provided on the outer side of the anti-slip plate 405.

[0086] The retaining seat 910 is fixed on a bottom plate 201 , and a seat plate 301 can be fixed on the bottom plate 201 . The guide member 402 and the limit plate 406 can be fixed on the seat plate 301 .

[0087] In some other variant embodiments, the molding die head can be assembled by the first parting molding block 40a rotating around the axis of the cylindrical thin wall 013 while moving radially inward. For example, the seat plate 301 rotates around the axis of the cylindrical thin wall 013 at the same time, and the side hydraulic cylinder 408 installed on the cylindrical thin wall 013 radially drives the first parting molding block 40a.

[0088] Tenth embodiment:

[0089] Please refer to Fig.16 . The tenth shell riveting connection device can be obtained by changing the ninth shell riveting connection device. Specifically: multiple guide members 402 are replaced by a seat cylinder 302, that is, multiple guide members 402 are integrally connected together and deformed into a cylindrical seat cylinder 302. The seat cylinder 302 can be sleeved on the outside of the punch head 5. The first inclined guide surface 502 can be lifted and lowered directly above the retaining seat 910 by a lifting mechanism. The slide rod 403 can be slidably arranged on the seat cylinder 302. The bottom of the punch head 5 is also provided with a pressing surface that can apply downward pressure to the upper surface of the assembled molding die to transmit pressure. The punch head 5 in this embodiment is under the pressure of the pressure transmission member. After closing the first parting molding block 40a, pressure is applied to the molding die. The molding die head has a downward intermediate molding surface 022b or a final molding surface 022c, wherein the final molding surface 022c can be the same shape as the final molding surface 022c of the first shell riveting connection device, that is, a smooth transition portion 023 is formed at the connection between the vertical molding surface and the horizontal molding surface, such as a chamfer or a straight chamfer.

[0090] Eleventh embodiment:

[0091] The eleventh housing riveting connection device can be obtained by changing the ninth housing riveting connection device. Specifically as follows: Please refer to Fig.17 , Fig.18 . In this embodiment, the guiding member can specifically be a guiding plate 402a, and the second inclined guiding surface 401 and the first inclined guiding surface 502 are not provided.

[0092] Additionally, the closing device correspondingly includes a plurality of hydraulic driving mechanisms. The hydraulic driving mechanism includes side moving hydraulic cylinders 408 corresponding to a plurality of first parting and forming blocks 40a one by one. The piston rod of the side moving hydraulic cylinder 408 is arranged along the radial direction of the holding seat 910 and is fixedly connected to the sliding rod 403. The stamping head 5 is arranged in the same way as the first housing riveting connection device, that is, the stamping head 5 is provided with a final forming surface 022c. In this way, the circumferential closing and extrusion of the forming die head can first form a crimp 014a in an intermediate state, and then the stamping head 5 presses down to form the crimp 014a in the final state.

[0093] Twelfth embodiment:

[0094] The twelfth housing riveting connection device can be obtained from the eleventh housing riveting connection device. Specifically: Please refer to Fig.19 . In this embodiment, the stamping head 5 is cancelled, and at the same time, an additional set of second parting and forming blocks 40b is provided. These second parting and forming blocks 40b can be driven by the closing device to be pieced together from the outside to the inside along the radial direction towards a vertical axis to form another forming die head. This forming die head is provided with a final forming surface 022c. Similarly, the second parting and forming blocks 40b are driven by the correspondingly additional side moving hydraulic cylinders 408, and the crimp 014a in the intermediate state is extruded from the intermediate forming surface 022b of the forming die head composed of the first parting and forming blocks 40a towards the middle by the final forming surface 022c to continue to be formed into the crimp 014a in the final state.

[0095] The housing riveting connection devices of the above embodiments are also called riveting mechanisms, or riveting forming mechanisms / devices. According to whether the upper surface of the front and rear crimps 014a to be formed is perpendicular to the axis of the sensor 01 or the cylindrical thin wall 013, they can be divided into three categories, including: the first type of forming mechanism / device that can only process the upper end of the cylindrical thin wall 013 from the Figure 2 P0 state shown to the P1 state, the second type of forming mechanism / device that can only process the upper end of the cylindrical thin wall 013 from the Figure 2 P1 state shown to the P2 state, and the third type of forming mechanism / device that can directly process the upper end of the cylindrical thin wall 013 from the Figure 2 P0 state shown to the P2 state, or the upper end of the cylindrical thin wall 013 from the Figure 2The third type of forming mechanism / device that processes the shown P0 state to the P1 state and then directly processes from the P1 state to the P2 state. Therefore, any first forming mechanism and any second forming mechanism can be combined into a third type of forming mechanism / device.

[0096] Among them, for the above-mentioned non-typical sensor 01, the first type of forming mechanism can directly complete the forming, or multiple first type of forming mechanisms / devices can perform multi-step forming. For the above-mentioned typical sensor 01, it still needs to be further formed in one step or multiple steps by multiple second type or third type of forming mechanisms / devices. Of course, it can also be directly formed by one or more of the above-mentioned third type of forming mechanisms / devices. For example, for the above-mentioned non-typical sensor 01, it can be formed once or multiple times by the first type of forming mechanisms / devices such as the third, sixth, or ninth housing riveting connection mechanisms. For the above-mentioned typical sensor 01, it still needs to be further formed by the second type of forming mechanisms / devices such as the seventh and tenth, or formed by the third type of forming mechanisms / devices such as the first, second, eleventh, and twelfth housing riveting connection mechanisms.

[0097] Among them, for processing the upper end of the cylindrical thin wall 013 from Figure 2 the shown P0 state to the P1 state. Then, the third type of forming mechanism / device that directly processes from the P1 state to the P2 state, such as the eleventh housing riveting connection device, can also disassemble and combine some of its parts into a first forming mechanism and a second forming mechanism. For example, other parts except the stamping head 5 can be used as a first forming mechanism, and the corresponding part of the stamping head 5 can be used as a second forming mechanism, that is, the first housing riveting connection device.

[0098] Therefore, for the finally formed curled edge 014a being Figure 2 、 Figure 3 the shown P1 state of the non-typical sensor, it can also be directly processed by the first type of forming mechanism / device.

[0099] In some other embodiments, the sensor 01 can also move up and down through a lifting drive mechanism, so as to perform height adjustment and / or provide downward pressure. For example, the sensor 01 is actively pressed upward against the forming surface.

[0100] The present invention is not limited to sensors, and it can also be applied to components similar to the illustrated sensors that have a combined housing, where the combined housing of the component includes an upper shell 011 and a metal lower shell 012.

[0101] The scope of the present disclosure is not defined by the detailed description, but by the claims and their equivalents, and all variations within the scope of the claims and their equivalents are construed as being included in the present disclosure.

Claims

1. A housing riveting connection device for manufacturing an element having a combined housing, the combined housing including an upper housing (011) and a metal lower housing (012). A cylindrical thin wall (013) is formed at the upper end of the metal lower housing (012) and tightly sleeved downward outside the lower end of the upper housing (011). The upper end (022a) of the cylindrical thin wall is rolled inward from the vertical initial state (P0) to the final state (P2), and then a curled edge (014a) that is hermetically pressed on the upper housing (011) is formed. Characterized in that, it includes two forming mechanisms, and these two mechanisms include: A first forming mechanism for rolling the upper end (022a) of the cylindrical thin wall from the initial state (P0) inward to an intermediate state (P1), which has a forming surface, namely an intermediate forming surface (022b), that is adapted to the outer contour edge of the upper end (022a) of the cylindrical thin wall in the intermediate state. And a second forming mechanism for rolling the upper end (022a) of the cylindrical thin wall from the intermediate state (P1) inward to the final state (P2), which has a forming surface, namely a final forming surface (022c), that is adapted to the outer contour edge of the upper end (022a) of the cylindrical thin wall in the final state. Wherein, the first forming mechanism and the second forming mechanism are arranged in pairs; for each pair of the first forming mechanism and the second forming mechanism, it includes a roller mounting bracket (102) whose upper ends are swingably arranged on a connecting head (101) along a horizontal rotating shaft (104a). The roller mounting brackets (102) of the two are fixedly connected. At the end of one of the roller mounting brackets (102) facing the sensor (01), there is a roller (105) or a spinning disc having an intermediate forming surface (022b), and at the end of the other roller mounting bracket (102) facing the sensor (01), there is a roller (105) or a spinning disc having a final forming surface (022c). The central axis of the roller (105) or the spinning disc is coplanar with the central axis of the cylindrical thin wall (013); when the roller mounting bracket (102) swings to one side limit, the intermediate forming surface (022b) presses against the upper end (022a) of the cylindrical thin wall, and when the roller mounting bracket (102) swings to the other side limit, the final forming surface (022c) presses against the upper end (022a) of the cylindrical thin wall. The upper end of the connecting head (101) is connected to a liftable pressure transmission member.

2. The housing riveting connection device according to claim 1, Characterized in that, the forming mechanism includes a punching head (5). A relief cavity (501) with a lower end opening for accommodating the upward extension of the upper end of the sensor is provided in the middle of the lower end of the punching head (5), and the forming surface is arranged at the edge of the lower end opening.

3. The housing riveting connection device according to claim 1, Characterized in that, The forming mechanism includes a connection head (101). At least one roller mounting bracket (102) with its upper end fixed to the connection head (101) is fixed on the connection head (101). A roller (105) or a spinning disc having the forming surface is provided at the lower end of the roller mounting bracket (102). The central axis of the roller (105) or the spinning disc is coplanar with the central axis of the cylindrical thin wall (013).

4. The housing press riveting connection device according to claim 1, characterized in that it further includes a first position conversion mechanism for interchanging the relative positions of the first forming mechanism and the second forming mechanism with the same sensor (01), or it further includes a second position conversion mechanism for interchanging the relative forming positions of the first forming mechanism and the second forming mechanism with two sensors (01).

5. The housing press riveting connection device according to claim 4, characterized in that the first position conversion mechanism is a rotary displacement mechanism that can rotate along a vertical axis or a horizontal axis. The first forming mechanism and the second forming mechanism are connected to the rotary displacement mechanism. When the rotary displacement mechanism rotates to the first angle, the forming surface of the first forming mechanism presses against the upper end (022a) of the cylindrical thin wall, and the forming surface of the second forming mechanism disengages from the upper end (022a) of the cylindrical thin wall. When the rotary displacement mechanism rotates to the second angle, the forming surface of the second forming mechanism presses against the upper end (022a) of the cylindrical thin wall, and the forming surface of the first forming mechanism disengages from the upper end (022a) of the cylindrical thin wall.

6. The housing press riveting connection device according to claim 4, characterized in that the first position conversion mechanism includes two linear drive mechanisms, namely a first linear drive mechanism and a second linear drive mechanism, which respectively drive the first forming mechanism and the second forming mechanism to move radially. When the first linear drive mechanism drives the forming surface of the first forming mechanism to press against the upper end (022a) of the cylindrical thin wall, the second linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end (022a) of the cylindrical thin wall. When the second linear drive mechanism drives the forming surface of the second forming mechanism to press against the upper end (022a) of the cylindrical thin wall, the linear drive mechanism drives the forming surface of the second forming mechanism to radially disengage from the upper end (022a) of the cylindrical thin wall.

7. The housing press riveting connection device according to claim 6, characterized in that: The forming mechanism includes a connection head (101). At least one roller mounting bracket (102) with its upper end fixed to the connection head (101) is fixed on the connection head (101). A roller (105) or a spinning disc having the forming surface is provided at the lower end of the roller mounting bracket (102). The central axis of the roller (105) or the spinning disc is coplanar with the central axis of the cylindrical thin wall (013); The second position conversion mechanism comprises two lifting hydraulic cylinders (907) whose cylinder bodies are fixed one-to-one on two ends of a horizontal rotating frame (903); the piston rods (905) of the two lifting hydraulic cylinders (907) are fixed one-to-one and downward on two connecting heads (101); and a sensor (01) is vertically arranged one-to-one and vertically directly below the two connecting heads (101); When the horizontal rotating frame (903) rotates from the first angle to the second angle, the corresponding relationship between the two molding mechanisms and the two sensors (01) is exchanged, and the molding surfaces thereof are pressed against the upper ends (022a) of the cylindrical thin walls of the corresponding sensors (01) after rotation.

8. The shell riveting connection device according to claim 1, It is characterized in that The first molding mechanism comprises at least two first parting molding blocks (40a), which can be driven by a closing device to gather toward the central axis of the cylindrical thin wall (013) to extrude the upper end (022a) of the cylindrical thin wall and splice circumferentially to form a molding die head, and the middle molding surface (022b) is arranged on the inner lower side of the molding die head.

9. The shell riveting connection device according to claim 8, It is characterized in that The closing device comprises a punch head (5) and a plurality of slide bars (403) one end of which is fixedly connected to the radially outer end of the first split molding block (40a); the slide bar (403) is arranged horizontally and the other end of the slide bar (403) is movably passed through a guide member (402) and then fixedly connected to an anti-slip plate (405); a return spring (404) is sleeved on the slide bar (403), and the return spring (404) is located between the guide member (402) and the anti-slip plate (405); a plurality of first inclined guide surfaces (502) are arranged at the lower end of the punch head (5); a second inclined guide surface (401) corresponding to the first split molding block (40a) and pressed against the first inclined guide surface (502); one end of the first inclined guide surface (502) is inclined upward relative to the other end.

10. The shell riveting connection device according to claim 9, It is characterized in that The punching head (5) is provided with a clearance groove (407) for the sliding rod (403) to pass through.

11. The shell riveting connection device according to claim 10, It is characterized in that A limiting plate (406) is arranged on the outer side of the anti-slip plate (405).

12. The shell riveting connection device according to claim 8, It is characterized in that The closing device includes a stamping head (5), a seat cylinder (302) sleeved outside the stamping head (5), and a plurality of sliding rods (403) with one end fixedly connected to the radially outer end of the first split forming block (40a). The sliding rods (403) are horizontally arranged and the other end thereof movably passes through the seat cylinder (302) and is fixedly connected to an anti - detachment plate (405). A return spring (404) is sleeved on the sliding rod (403), and the return spring (404) is located between the outer wall of the seat cylinder (302) and the anti - detachment plate (405). The lower end of the stamping head (5) is provided with a plurality of first inclined guide surfaces (502), and the first split forming block (40a) is correspondingly provided with second inclined guide surfaces (401) that are correspondingly pressed against the first inclined guide surfaces (502). One end of the first inclined guide surface (502) is inclined upward relative to the other end.

13. The housing press - riveting connection device according to claim 2 or 3, wherein, the first forming mechanism includes at least two first split forming blocks (40a), and the first split forming blocks (40a) can be driven by a closing device to gather towards the central axis of the cylindrical thin - wall (013) to squeeze the upper end (022a) of the cylindrical thin - wall and circumferentially join to form a forming die head. The intermediate forming surface (022b) is arranged on the inner lower side of the forming die head. The closing device includes a hydraulic driving mechanism that drives a plurality of the first split forming blocks (40a) to move along the radial direction one by one.

14. A housing press - riveting connection method for manufacturing a component with a combined housing, the combined housing including an upper shell (011) and a metal lower shell (012). The upper end of the metal lower shell (012) forms a cylindrical thin - wall (013) that tightly sleeves downward outside the lower end of the upper shell (011). The upper end (022a) of the cylindrical thin - wall is curled inward from the vertical initial state (P0) to the final state (P2) to form a curled edge (014a) that is hermetically pressed on the upper shell (011). wherein, it includes the steps of: using the first forming mechanism according to any one of claims 1 to 8 to curl the upper end (022a) of the cylindrical thin - wall from the initial state (P0) inward to an intermediate state (P1); using the second forming mechanism according to any one of claims 1 to 8 to curl the upper end (022a) of the cylindrical thin - wall from the intermediate state (P1) inward to the final state (P2).

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