Cam adjustment mechanism and sealing device

Abstract

The present invention provides a cam adjustment mechanism, comprising: a fixed plate; a cam assembly, comprising an inner cam and an outer cam, wherein the inner cam is fixed to the fixed plate, and the outer cam is arranged on the outer side of the inner cam and overlaps with a part of the curved groove of the inner cam; wherein the cam assembly also includes an adjustment mechanism for adjusting the height of the outer cam bearing curved surface. The driving mechanism provided by the present invention can better utilize the position adjustment of the outer cam to achieve the adjustment of the up and down movement distance of the assembly driven by the cam assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a cam adjusting mechanism and a sealing device. Background Art

[0002] The traditional cam lifting structure uses a fixed cam and a cam follower bearing to achieve the up and down movement of the pressure rod, thereby completing the sealing operation. However, this cam structure is fixed and cannot be adjusted according to the height of the battery. In the prior art, when the battery size changes, the operator is often required to manually adjust the position relationship between the pressure rod and the upper connecting mechanism to finally adjust the distance the pressure rod moves up and down. The adjustment is difficult and the adjustment speed is slow, which greatly reduces the work efficiency. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a cam adjustment mechanism and a sealing device, thereby improving the efficiency of adjusting the up and down moving distance of the components driven by the cam assembly.

[0004] In order to solve the above technical problems, a technical solution adopted by the present invention is to provide a driving mechanism, comprising:

[0005] Fixed plate;

[0006] A cam assembly, comprising an inner cam and an outer cam, wherein the inner cam is fixed to the fixing plate, and the outer cam is arranged on the outer side of the inner cam and overlaps with a part of the curved groove of the inner cam;

[0007] Wherein, the cam assembly further comprises an adjusting mechanism for adjusting the height of the outer cam bearing curved surface.

[0008] Further, the adjustment mechanism includes an adjustment member and an adjustment shaft;

[0009] Wherein, the adjusting member is arranged on the fixing plate, the adjusting member comprises a supporting surface for supporting the outer cam, the supporting surface is an inclined surface, and the end surface of the outer cam in contact with the supporting surface is arranged as an inclined surface matching the supporting surface;

[0010] The adjusting shaft is connected to the adjusting member and the outer cam respectively, and is used for adjusting the height of the bearing curved surface of the outer cam.

[0011] Furthermore, one end of the adjusting shaft is threadedly connected to the outer cam to adjust the relative position of the adjusting member and the outer cam.

[0012] Furthermore, the adjustment mechanism also includes a corrugated dial handwheel, which is fixedly connected to an end of the adjustment shaft away from the outer cam, and the scale on the corrugated dial handwheel corresponds to the pitch setting of the thread on the adjustment shaft.

[0013] Furthermore, the adjusting member also includes a connecting surface connected at an angle to the end of the supporting surface away from the inner cam, and the connecting hole between the adjusting shaft and the adjusting member is a waist-shaped hole to accommodate the position of the adjusting member after adjustment.

[0014] Furthermore, the adjusting member is provided with a first waist-shaped hole, the first waist-shaped hole cooperates with the fixing hole provided on the fixing plate, and the adjusting member and the outer cam are connected by a fastener.

[0015] Furthermore, the cam adjustment mechanism further includes a pressure rod assembly that can rotate along the curved groove, and the pressure rod assembly includes a pressure rod and a first roller and a second roller connected to the same end of the pressure rod, wherein the first roller cooperates with the inner cam and the second roller cooperates with the outer cam.

[0016] Furthermore, the height of the first roller in the extending direction of the inner cam matches the height setting of the curved groove, and the height of the second roller in the extending direction of the inner cam matches the maximum height setting of the bearing curved surface.

[0017] Furthermore, the pressure rod assembly includes a connecting shaft, the first roller and the second roller are connected to the pressure rod via the connecting shaft, and the height of the second roller along the extension direction of the inner cam is greater than that of the first roller.

[0018] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a sealing device, the device comprising a cam adjustment mechanism as described in any one of the above items, so as to perform sealing operations on batteries of different sizes.

[0019] The beneficial effects of the present invention are as follows: different from the prior art, the driving mechanism provided by the present invention is configured by setting a cam assembly including an inner cam, an outer cam and an adjusting mechanism, wherein the adjusting mechanism is used to adjust the height of the bearing surface of the outer cam, so that when the component driven by the cam assembly moves to the bearing surface, the bearing surface can apply pressure in the extension direction of the cam assembly, and at the same time, by setting the height of the bearing surface of the outer cam to be adjustable, it can adapt to the need for the component driven by the cam assembly to move different distances in the vertical direction when setting process operations for workpieces of different sizes. Compared with the prior art, the cam adjustment structure provided by the present invention can simplify the adjustment process, and better improve the efficiency of adjusting the up and down moving distance of the structure driven by the cam assembly according to the needs of workpieces of different sizes, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0021] Figure 1 It is a structural schematic diagram of a cam adjustment mechanism in one embodiment of the present invention;

[0022] Figure 2 It is a side structural schematic diagram of a cam adjustment mechanism in one embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of an embodiment of a pressure rod assembly in a cam adjustment mechanism of the present invention;

[0024] Figure 4 for Figure 3 A schematic side view of the structure of a compression rod assembly in an embodiment of the present invention;

[0025] Figure 5 for Figure 1 A schematic cross-sectional view along the AA' direction of an embodiment of the cam drive mechanism shown;

[0026] Figure 6 for Figure 1 A schematic cross-sectional view along the AA' direction of another embodiment of the cam driving mechanism shown;

[0027] Figure 7 for Figure 5 an enlarged structural schematic diagram in the corresponding cross-sectional view;

[0028] Figure 8 for Figure 6The enlarged schematic diagram in the corresponding cross-sectional view. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention rather than all structures are shown in the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] The terms "including" and "having" and any variations thereof in the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0031] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0032] Please also see Figure 1 and Figure 2 , Figure 1 It is a structural schematic diagram of a cam adjustment mechanism 100 in an embodiment of the present invention. Figure 2 The figure is a schematic diagram of a side view of a cam adjustment mechanism 100 in an embodiment of the present invention. In the current embodiment, the cam adjustment mechanism 100 provided by the present invention can adjust the position of the components it drives in the vertical direction, and thus can meet the needs of moving different distances in the vertical direction of the components driven by the cam assembly 110 when setting process operations for workpieces of different sizes. In the current embodiment, the cam adjustment mechanism 100 provided by the present invention includes a fixing plate 101 and a cam assembly 110.

[0033] The fixing plate 101 is used to fix the structure in the cam adjustment mechanism 100 . Specifically, no limitation is made to the fixing plate 101 , and the fixing plate 101 is set according to the product layout requirements.

[0034] The cam assembly 110 includes an inner cam 111 , an outer cam 112 , and an adjustment mechanism 113 .

[0035] The inner cam 111 is fixed on the fixed plate 101. Specifically, the inner cam 111 is fixedly connected to one end surface of the fixed plate 101, and a curved groove 103 is provided on the outer periphery of the inner cam 111, and the component driven by the cam assembly 110 can rotate along the curved groove 103. The inner cam 111 is a cylinder extending in the vertical direction, which is used to provide a main body guide for the component driven by the cam assembly 110, and the central axis of the inner cam 111 refers to a straight line perpendicular to the cross section of the inner cam 111 and passing through the center of the cross section.

[0036] In another embodiment, it can also be understood that a curved groove 103 is provided around the outer circumferential surface of the inner cam 111, and the height of the curved groove 103 in the vertical direction is different, so that when the external component moves along the curved groove 103, it can realize reciprocating movement along the extension direction of the central axis of the inner cam 111, and when the external structure moves along the curved groove 103, there is only one lowest position and one highest position in the vertical direction. Among them, the external structure at least includes a pressure rod assembly 130 or a jacking assembly (not shown). Taking the pressure rod assembly 130 as an example, when the pressure rod assembly 130 moves along the lowest position of the curved groove 103 to the highest position of the curved groove 103, the height of the pressure rod assembly 130 gradually increases; correspondingly, when the pressure rod assembly 130 moves from the highest position of the curved groove 103 to the lowest position of the curved groove 103, the height of the pressure rod assembly 130 gradually decreases.

[0037] The outer cam 112 is arranged on the outer side of the inner cam 111, and overlaps with a part of the curved groove of the inner cam 111. The outer cam 112 is provided with a bearing curved surface 104 at one end close to the external structure, so as to transmit the external structure when the external structure rotates and passes through. The outer cam 112 is connected to the fixed plate 101 through an adjusting mechanism 113, and the adjusting mechanism 113 is used to adjust the height of the bearing curved surface of the outer cam 112. Specifically, the height of the bearing curved surface 104 on the outer cam 112 can be adjusted and set to match the size of the workpiece, so as to be used to perform upper limit positioning on the components transmitted by the inner cam 111 within the range set before and after the lowest position on the curved groove 103 according to the size of different types of workpieces. Under the transmission of the adjusting member 1131, the outer cam 112 can move relative to the fixed plate 101 in the direction extending along the central axis of the inner cam 111, so as to adjust the position of the outer cam 112 in the vertical direction.

[0038] Among them, in another embodiment, it can also be understood that the outer cam 112 is provided with a bearing surface 104 around the central axis of the inner cam 111, and the adjustment mechanism 113 is used to adjust the position of the outer cam 112 along the extension direction of the central axis of the inner cam 111, and then adjust the position of the bearing surface 104 in the vertical direction, and finally realize the position adjustment of the component driven by the cam assembly 110, or adjust the range of movement of the component driven by the cam assembly 110 in the vertical direction.

[0039] In the current embodiment, the user can adjust the distance of the adjusting member 1131 relative to the central axis in the direction perpendicular to the central axis, and realize the transmission of the outer cam 112 in the direction extending along the central axis through the characteristics of the structure of the adjusting member 1131. When the central axis extends along the vertical direction, the user can adjust the position of the adjusting member 1131 in the horizontal direction, and then convert the displacement of the adjusting member 1131 in the horizontal direction into the displacement of the outer cam 112 in the vertical direction through the cooperation of the adjusting member 1131 and the structure of the outer cam 112, and finally realize the adjustment of the position of the bearing curved surface 104 on the outer cam 112 in the vertical direction.

[0040] Further, in another embodiment, the outer cam 112 is arranged at the lowest position corresponding to the curved groove 103 on the inner cam 111 and the periphery within the set range before and after the lowest position, so that when the component driven by the cam assembly 110 moves to the lowest position along the curved groove 103, the component has a tendency to move upward due to inertia and can contact the bearing curved surface 104, and the bearing curved surface 104 applies pressure to the component driven by the cam assembly 110, so as to enable the component to better perform the set process operation. Specifically, the central angle corresponding to the bearing curved surface 104 is smaller than the central angle corresponding to the curved groove 103, and the set process operation at least includes the pressing down or sealing operation of the battery.

[0041] The present invention Figure 1The cam adjustment mechanism 100 provided in the corresponding embodiment is provided with a cam assembly 110 including an inner cam 111, an outer cam 112 and an adjustment mechanism 113, wherein the adjustment mechanism 113 is used to adjust the position of the outer cam 112 along the central axis of the inner cam 111, so that when the component driven by the cam assembly 110 moves to the bearing curved surface 104, the bearing curved surface 104 can upper limit the component driven by the cam assembly 110 in the vertical direction, thereby realizing the position adjustment of the component driven by the cam assembly 110 in the vertical direction by utilizing the outer cam 112 structure and the adjustment mechanism 113, thereby being able to adapt to the need for the component driven by the cam assembly 110 to move different distances in the vertical direction when setting process operations for workpieces of different sizes. Compared with the prior art, the cam adjustment structure provided by the present invention can simplify the adjustment process, better improve the efficiency of adjusting the up and down movement distance of the structure driven by the cam assembly 110 according to the needs of workpieces of different sizes, thereby improving the overall work efficiency.

[0042] Please also see Figure 3 and Figure 4 , Figure 3 This is a structural schematic diagram of an embodiment of a pressure rod assembly 130 in a cam adjustment mechanism 100 of the present invention. Figure 4 for Figure 3 A side view of one embodiment of a strut assembly 130 is shown.

[0043] The cam adjustment mechanism 100 provided by the present invention further includes a pressure rod assembly 130 that can rotate along the curved groove 103, and the pressure rod assembly 130 is used to apply pressure to the workpiece abutted below the pressure rod assembly 130, so that the workpiece completes the set process operation, wherein the workpiece at least includes a cylindrical battery. The pressure rod assembly 130 includes a pressure rod 131 and a first roller 132 and a second roller 133 connected to the same end of the pressure rod 131. The first roller 132 cooperates with the inner cam 111, and the second roller 133 cooperates with the outer cam 112. Specifically, the second roller 133 cooperates with the bearing curved surface 104 at the overlapping portion of the outer cam and the curved groove, thereby applying pressure to the pressure rod in the extension direction of the pressure rod.

[0044] When a plurality of pressure rod assemblies 130 are included, the plurality of pressure rod assemblies 130 are spaced around the central axis of the inner cam 111, and the plurality of pressure rod assemblies 130 can rotate along the curved groove 103. One end of each pressure rod assembly 130 cooperates with the curved groove 103 and the bearing curved surface 104, so that the pressure rod assembly 130 rotates around the central axis of the inner cam 111. During the rotation of the pressure rod assembly 130 around the central axis of the inner cam 111, the pressure rod assembly 130 reciprocates in the vertical direction.

[0045] During the process of the pressure rod assembly 130 rotating around the central axis of the inner cam 111, when the pressure rod assembly 130 rotates to the area corresponding to the load-bearing curved surface 104, one end of the pressure rod assembly 130 cooperates with the load-bearing curved surface 104 to rotate along the central axis of the inner cam 111, and correspondingly, when the pressure rod assembly 130 rotates to other areas of the curved groove 103, one end of the pressure rod assembly 130 cooperates with the curved groove 103 to rotate along the central axis of the inner cam 111.

[0046] Specifically, in another embodiment, the rotation process of the pressure rod assembly 130 around the central axis can also be understood from the height change of the pressure rod assembly 130 in the vertical direction. When the pressure rod assembly 130 rotates to the lowest position and within a preset range before and after the lowest position, one end of the pressure rod assembly 130 cooperates with the bearing curved surface 104. When the pressure rod assembly 130 rotates to other areas, one end of the pressure rod assembly 130 cooperates with the curved groove 103. Among them, the other area is the area of ​​the curved groove 103 excluding the part overlapped by the bearing curved surface 104.

[0047] Furthermore, the pressure rod assembly 130 includes a pressure rod 131 and a first roller 132 and a second roller 133 connected to the same end of the pressure rod 131. The first roller 132 and the second roller 133 are driven rollers, which are used to respectively cooperate with the curved groove 103 and the bearing curved surface 104 in the cam assembly 110, and then drive the pressure rod 131 to rotate around the central axis of the inner cam 111, so as to perform a set process operation on the battery pressed by the pressure rod 131 at a set position. Among them, the curved groove 103 and its opposite end face are configured to just clamp the first roller 132, so that the first roller 132 can stably move along the curved groove 103. In addition, the height of the curved groove 103 in the vertical direction within the same central angle range corresponding to the bearing curved surface 104 is relatively reduced by a set distance, so that when the bearing curved surface 104 applies pressure to the second roller 133, the second roller 133 can be slightly lowered compared to other areas to better apply pressure to the battery; the set process operation includes at least one of a pressing operation and a compression sealing operation on the battery. When the external structure is a lifting component for lifting the battery, the set process operation includes lifting the battery, etc.

[0048] Among them, the second roller 133 cooperates with the bearing curved surface 104 at the overlapping part of the outer cam 112 and the curved groove 103, and then applies pressure to the pressure rod 131 in the extension direction of the pressure rod, thereby driving the second roller 133 closer to the curved groove 103, so that the pressure rod 131 applies pressure to the battery, thereby completing the set process operation. When the pressure rod assembly 130 rotates around the central axis in other areas, the first roller 132 cooperates with the curved groove 103 to realize rotation around the inner cam.

[0049] Among them, in the current embodiment, when the second roller 133 cooperates with the bearing curved surface 104, the first roller 132 can be closely attached to the lower end surface of the curved groove 103, so that the first roller 132 can better cooperate with the curved groove 103. When the second roller 133 cooperates with the bearing curved surface 104, the bearing curved surface 104 will give a downward pressure to the pressure rod 131 in the vertical direction, so that the first roller 132 can more closely fit the curved groove 103, which better solves the problem in the prior art that when the pressure rod 131 rotates to a low position along the curved groove 103, it cannot move closely against the curved groove 103 due to inertia, causing the pressure rod 131 to be unable to apply pressure to the battery when it rotates to the lowest position, and realizes better transmission of the pressure rod 131 in the vertical direction, so as to realize better application of pressure to the battery when the pressure rod 131 moves to the lowest position.

[0050] Furthermore, the pressure rod assembly 130 further includes a connecting shaft (not shown). The first roller 132 and the second roller 133 are connected to the same end of the pressure rod 131 via the connecting shaft, and the height of the second roller 133 along the extending direction of the inner cam 111 is greater than that of the first roller 132 .

[0051] Furthermore, two sets of parallel and spaced pillars 135 are provided at the end of the pressure rod 131 away from the workpiece, and corresponding connecting holes 1351 are provided on the pillars 135 to match the connecting shaft, and the second roller 133 is provided between the two sets of pillars 135, and the first roller 132 is provided on the side of one set of pillars 135 away from the second roller 133, and the first roller 132 cooperates with the curved groove 103 to drive the pressure rod 131, and the first roller 132 and the second roller 133 are connected to the pillars 135 on the pressure rod 131 through the connecting holes 1351 and the connecting shaft, thereby driving the pressure rod 131 to rotate around the central axis of the inner cam 111 and to reciprocate in the vertical direction. The two ends of the connecting shaft are fixed by locking nuts 134.

[0052] The height of the first roller 132 in the extending direction of the central axis matches the height of the curved groove 103 , and the height of the second roller 133 in the extending direction of the central axis matches the maximum height of the bearing curved surface 104 .

[0053] Furthermore, in one embodiment, it can also be understood that the height of the second roller 133 along the extension direction of the central axis is greater than the height of the first roller 132, so as to better cooperate with the bearing curved surface 104 when the pressure rod 131 rotates to the lowest position. Correspondingly, when the height of the second roller 133 along the extension direction of the central axis is greater than the first roller 132, the lowest height to which the outer cam 112 can be adjusted is equal to the height of the end face of the inner cam 111 opposite to the curved groove 103, and the highest height to which the outer cam 112 can be adjusted is equal to the sum of the height difference between the second roller 133 and the first roller 132 and the height of the end face opposite to the curved groove 103.

[0054] In another embodiment, the height of the second roller 133 along the extension direction of the central axis is less than the height of the first roller 132, and the corresponding maximum height to which the outer cam 112 can be adjusted is equal to the height of the end face of the inner cam 111 opposite to the curved groove 103, and the minimum height to which the outer cam 112 can be adjusted is equal to the height of the end face opposite to the curved groove 103 minus the difference in height between the first roller 132 and the second roller 133.

[0055] In another embodiment, the height of the second roller 133 along the extension direction of the central axis is equal to the height of the first roller 132, and the corresponding maximum height of the outer cam 112 is equal to the height of the end surface of the inner cam 111 opposite to the curved groove 103, and the minimum height of the outer cam 112 is equal to the difference between the height of the end surface opposite to the curved groove 103 and the set value. The set value can be adjusted and set according to actual needs by setting the size of the outer cam 112 and the adjustment member 1131, and is not specifically limited here.

[0056] See also Figures 5 to 8 , Figure 5 for Figure 1 The schematic cross-sectional view of an embodiment of the cam drive mechanism along the AA' direction is shown. Figure 6 for Figure 1 The schematic cross-sectional view of another embodiment of the cam drive mechanism along the AA' direction is shown. Figure 7 for Figure 5 The enlarged structural diagram in the corresponding cross-sectional view, Figure 8 for Figure 6 The enlarged schematic diagram in the corresponding cross-sectional view.

[0057] Further, the adjustment mechanism 113 includes an adjustment member 1131 and an adjustment shaft 1132. The adjustment member 1131 is disposed on the fixed plate 101, and includes a support surface C for supporting the outer cam 112, the support surface is an inclined surface C, and the adjustment shaft 1132 is respectively connected to the adjustment member 1131 and the outer cam 112, and is used to adjust the height of the bearing curved surface 104 of the outer cam 112. Further, the adjustment shaft 1132 is used to adjust the relative position of the adjustment member 1131 and the outer cam 112 along the extension direction of the support surface C, thereby adjusting the height of the bearing curved surface 104 of the outer cam 112.

[0058] Furthermore, one end of the adjusting shaft 1132 is threadedly connected to the outer cam 112, and the adjusting shaft 1132 is fixedly connected to the adjusting member 1131, so that the relative position of the adjusting member 1131 and the outer cam 112 can be adjusted by rotating the adjusting shaft 1132. Setting one end of the adjusting shaft 1132 to be threadedly connected to the outer cam 112 can better prevent the adjusting shaft 1132 from moving in the outer cam 112, thereby increasing the connection strength between the adjusting shaft 1132 and the outer cam 112.

[0059] Furthermore, the adjustment mechanism 113 also includes a corrugated dial handwheel 1133, which is fixedly connected to one end of the adjustment shaft 1132 away from the outer cam 112, and the scale on the corrugated dial handwheel 1133 corresponds to the pitch setting of the upper thread of the adjustment shaft 1132.

[0060] Furthermore, the adjusting member 1131 also includes a connecting surface D connected at an angle to the end of the supporting surface C away from the inner cam 111 , and the connecting hole between the adjusting shaft 1132 and the adjusting member is a waist-shaped hole to adapt to the position of the adjusting member 1131 after adjustment.

[0061] In one embodiment, the connection surface D is perpendicular to the support surface C, and the adjustment shaft 1132 is clamped with the adjustment member 1131 in the direction in which the adjustment shaft 1132 extends through the waist-shaped hole, and is floatingly connected in the direction in which the connection surface D extends.

[0062] Furthermore, a first waist-shaped hole is provided on the adjusting member 1131. Specifically, the first waist-shaped hole is provided on the supporting surface C and extends along the extension direction of the supporting surface C. The first waist-shaped hole cooperates with a fixing hole (not shown) provided on the fixing plate 101, and the adjusting member 1131 and the outer cam 112 are connected in a direction perpendicular to the supporting surface C through the fastener 102. Among them, the fastener 102 at least includes an adjustable tightening handle.

[0063] Taking the workpiece as a battery as an example, the adjustment process of the cam adjustment mechanism 100 provided by the present invention is as follows: when the height of the battery in the vertical direction is relatively reduced, but the height of the inner cam 111 can still meet the needs of the battery, the height of the outer cam 112 can be adjusted to achieve the corresponding adjustment of the distance moved in the vertical direction of the pressure rod assembly 130, so that the distance of the pressure rod 131 moving up and down can match the height of the battery in the vertical direction. Specifically, the corrugated dial hand wheel 1133 can be rotated to make the adjustment shaft 1132 rotate in the direction pointing to the central axis of the inner cam 111. When the adjustment shaft 1132 rotates in the direction pointing to the central axis of the inner cam 111, that is, Figure 8 become Figure 7 As shown, the shaded area B becomes smaller. Since the adjusting member 1131 is connected to the adjusting shaft 1132 by a clamping connection, the adjusting member 1131 will be driven to move toward the central axis of the inner cam 111 during the screwing process of the adjusting shaft 1132. At this time, since the end surface of the outer cam 112 in contact with the support surface C is set as an inclined surface matching the support surface C, a downward pressure is applied to the outer cam 112 when the adjusting member 1131 moves toward the central axis of the inner cam 111, thereby causing the height of the outer cam 112 to decrease relative to the inner cam 111, and the height of the bearing curved surface 104 in the outer cam 112 is further adjusted downward until the height of the bearing curved surface 104 is adjusted to a point where a downward pressure can be applied to the second roller 133 when the second roller 133 passes by.

[0064] In another embodiment, when the height of the battery in the vertical direction increases relatively, the corrugated dial hand wheel 1133 can be rotated to make the adjustment shaft 1132 rotate out in the direction away from the central axis of the inner cam 111. When the adjustment shaft 1132 rotates out in the direction pointing to the central axis of the inner cam 111, the adjustment shaft 1132 is rotated out in the direction pointing to the central axis of the inner cam 111. Figure 7 become Figure 8 As shown, the shaded area B becomes larger, and the outer cam can move upward by a distance H. Since the adjusting member 1131 and the adjusting shaft 1132 are clamped, the adjusting member 1131 will be driven to move away from the central axis of the inner cam 111 during the process of the adjusting shaft 1132 being rotated out. At this time, since the end surface of the supporting surface C in the adjusting member 1131 opposite to the outer cam 112 is an inclined surface, when the adjusting member 1131 moves away from the central axis of the inner cam 111, the outer cam 112 is driven to move upward, so that the height of the outer cam 112 rises relative to the inner cam 111, and the height of the bearing curved surface 104 in the outer cam 112 also rises accordingly, until the height of the bearing curved surface 104 is adjusted to allow the second roller 133 to pass through, and when the second roller 133 passes through, the bearing curved surface 104 can apply a downward pressure to the second roller 133.

[0065] The present invention further provides a sealing device for sealing batteries. The sealing device provided by the present invention includes the cam adjustment mechanism 100 as described in any of the above embodiments, thereby realizing sealing operations on batteries of different sizes.

[0066] The above are only implementation modes of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cam adjustment mechanism, characterized in that: include: Fixed plate; A cam assembly, comprising an inner cam and an outer cam, wherein the inner cam is fixed to the fixing plate, and the outer cam is arranged on the outer side of the inner cam and overlaps with a part of the curved groove of the inner cam; Wherein, the cam assembly further comprises an adjusting mechanism for adjusting the height of the outer cam bearing curved surface relative to the fixing plate along the extension direction of the central axis of the inner cam.

2. The cam adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism includes an adjustment member and an adjustment shaft; Wherein, the adjusting member is arranged on the fixing plate, the adjusting member comprises a supporting surface for supporting the outer cam, the supporting surface is an inclined surface, and the end surface of the outer cam in contact with the supporting surface is arranged as an inclined surface matching the supporting surface; The adjusting shaft is connected to the adjusting member and the outer cam respectively, and is used for adjusting the height of the bearing curved surface of the outer cam.

3. The cam adjustment mechanism according to claim 2, characterized in that: One end of the adjusting shaft is threadedly connected to the outer cam to adjust the relative position of the adjusting member and the outer cam.

4. The cam adjustment mechanism according to claim 2 or 3, characterized in that: The adjustment mechanism also includes a corrugated dial handwheel, which is fixedly connected to an end of the adjustment shaft away from the outer cam, and the scale on the corrugated dial handwheel corresponds to the pitch setting of the thread on the adjustment shaft.

5. The cam adjustment mechanism according to claim 2, characterized in that: The adjusting member also includes a connecting surface connected at an angle to an end of the supporting surface away from the inner cam, and the connecting hole between the adjusting shaft and the adjusting member is a waist-shaped hole to adapt to the position of the adjusting member after adjustment.

6. The cam adjustment mechanism according to claim 2, characterized in that: The adjusting member is provided with a first waist-shaped hole, and the first waist-shaped hole cooperates with the fixing hole provided on the fixing plate, and the adjusting member and the outer cam are connected by a fastener.

7. The cam adjustment mechanism according to claim 1, characterized in that: The cam adjustment mechanism further includes a pressure rod assembly that can rotate along the curved groove, and the pressure rod assembly includes a pressure rod and a first roller and a second roller connected to the same end of the pressure rod, wherein the first roller cooperates with the inner cam and the second roller cooperates with the outer cam.

8. The cam adjustment mechanism according to claim 7, characterized in that: The height of the first roller in the extending direction of the inner cam matches the height of the curved groove, and the height of the second roller in the extending direction of the inner cam matches the maximum height of the bearing curved surface.

9. The cam adjustment mechanism according to claim 7, characterized in that: The pressure rod assembly includes a connecting shaft, the first roller and the second roller are connected to the pressure rod via the connecting shaft, and the height of the second roller along the extending direction of the inner cam is greater than that of the first roller.

10. A sealing device, characterized in that: The device comprises a cam adjustment mechanism as claimed in any one of claims 1 to 9 to perform sealing operations on batteries of different sizes.

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