Driving mechanism and positioning device

Abstract

The utility model relates to a driving mechanism and a positioning device.The driving mechanism comprises a mounting part, an elastic part arranged on one side of the mounting part, a sliding part arranged on the side, away from the mounting part, of the elastic part, a stroke groove is formed in one side of the sliding part, a plurality of clamping areas are arranged on the stroke groove, and the distances between the clamping areas and the mounting part are different; one end of the swing part is rotationally connected with the mounting part, the other end of the swing part is provided with a sliding contact part, in the process that the distance between the sliding part and the mounting part is reduced, the elastic part applies elastic force to the sliding part, the sliding contact part slides in the stroke groove and is clamped in the clamping areas in sequence, and when the sliding contact part is clamped in the clamping areas, the sliding contact part is clamped in the stroke groove. Resistance counteracting the elastic force is generated between the sliding contact piece and the clamping area. In conclusion, according to the driving mechanism in the embodiment, through the mode that the sliding contact piece is clamped with the clamping area and the sliding piece is locked, multi-gear movement of the sliding piece can be achieved with the smaller size and the lower cost, and then multi-gear driving is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board processing, in particular to a driving mechanism and positioning device. BACKGROUND

[0002] When a circuit board is drilled, a PIN pin is usually used to position the workpiece. The specific operation process is as follows: first, place several layers of sheet-shaped workpieces on the workbench, then use a liftable assembly to raise the PIN pin until the PIN pin cooperates with the hole on the workpiece, and finally fix the sheet-shaped workpiece to prevent the workpiece from loosening during processing.

[0003] Because the air source is convenient and low in cost, in the related technology, a cylinder is usually used to drive the PIN pin to move up and down. However, the cylinder piston rod only has two states of extension and retraction, so the position of the PIN pin only has two states, i.e. rising to the highest position and falling back to the initial position. However, when the thickness of the workpiece to be processed is thin or the processing stack is small, if the PIN pin rises to the highest position, the PIN pin may interfere with the drill or dust cover of the processing equipment during processing, causing damage to the equipment or workpiece, which is not conducive to production.

[0004] In order to adapt to workpieces of different thicknesses, more and more circuit board processing plants have begun to require the lifting height of the PIN pin to have more gears. However, because the workbench is installed on the processing table of the processing equipment, the space is generally limited, and it is difficult to set up a multi-stroke cylinder or use multiple cylinders in the limited space. The driving mechanism for realizing multi-gear movement has a large volume and high cost. Practical new type content

[0005] Therefore, it is necessary to propose a driving mechanism and positioning device to solve the problem of large volume and high cost of the driving mechanism for realizing multi-gear movement.

[0006] A driving mechanism comprises:

[0007] a mounting piece;

[0008] a resilient piece arranged on one side of the mounting piece;

[0009] a sliding piece arranged on the side of the resilient piece away from the mounting piece, one side of the sliding piece being provided with a stroke groove, and a plurality of clamping regions being arranged on the stroke groove, the distance between each clamping region and the mounting piece in a first direction being different, and the first direction being parallel to the direction in which the resilient piece is elastically deformed;

[0010] a swinging piece, one end of the swinging piece being rotationally connected to the mounting piece, and the other end being provided with a sliding contact piece, the sliding contact piece being slidably connected to the stroke groove.

[0011] The elastic member is elastically deformed and applies an elastic force to the sliding member during the distance between the sliding member and the mounting member is reduced, the sliding contact member slides in the stroke slot and can be engaged with each of the engagement regions in turn, and a resistance that counteracts the elastic force is generated between the sliding contact member and the engagement region when the sliding contact member is engaged with the engagement region.

[0012] In one of the embodiments, the sliding member is provided with an inclined surface on the side close to the mounting member, and the distance between the inclined surface and the center of the sliding member in the second direction gradually decreases in the direction close to the mounting member along the first direction.

[0013] The driving mechanism further comprises a stopper in contact with the inclined surface, and the inclined surface pushes the stopper to move relative to the center of the sliding member in the second direction during the distance between the sliding member and the mounting member is reduced, the distance between the stopper and the center of the sliding member in the second direction gradually increases, and the second direction intersects the first direction.

[0014] In one of the embodiments, the stopper is provided with a plurality of stepped surfaces arranged along the second direction on one side in the third direction, and is provided with a reference surface on the other side in the third direction, and the first direction and the second direction both intersect the third direction.

[0015] The plurality of stepped surfaces are correspondingly arranged with the plurality of engagement regions, and the distance between each of the stepped surfaces and the reference surface in the second direction is different.

[0016] When the sliding contact member is engaged with each of the engagement regions during the distance between the sliding member and the mounting member is reduced, the corresponding stepped surface is configured to move to the front of the direction of movement of the object to be limited to block the movement of the object to be limited.

[0017] In one of the embodiments, the stroke slot comprises a plurality of guide segments connected in sequence, and the guide segment comprises a first guide slot and a second guide slot, the first guide slot and the second guide slot are in communication and form a transition angle, and the opening direction of the transition angle is opposite to the direction of the elastic force applied by the elastic member to the sliding member.

[0018] In the two adjacent guide segments, the second guide slot of one of the guide segments is in communication with the first guide slot of the other guide segment and forms the engagement region, and the opening direction of the engagement region is the same as the direction of the elastic force applied by the elastic member to the sliding member.

[0019] In one of the embodiments, the extension direction of the first guide groove is parallel to the deformation direction of the elastic member.

[0020] In one of the embodiments, the bottom surface of the first guide groove is protruded from the bottom surface of the second guide groove.

[0021] The guide section comprises a third guide groove and an inclined surface, the third guide groove is communicated with the second guide groove, the bottom surface of the third guide groove is protruded from the bottom surface of the second guide groove, one end of the inclined surface is connected with the bottom surface of the third guide groove, and the other end is connected with the bottom surface of the second guide groove.

[0022] In the two adjacent guide sections, the third guide groove of one of the guide sections is communicated with the first guide groove of the other guide section.

[0023] In one of the embodiments, in the plurality of guide sections connected in sequence, the bottom surface of the first guide groove of the guide section at the head end is protruded from the bottom surface of the third guide groove of the guide section at the tail end.

[0024] The stroke groove comprises a transition surface, one end of the transition surface is connected with the bottom surface of the first guide groove of the guide section at the head end, and the other end of the transition surface is connected with the bottom surface of the third guide groove of the guide section at the tail end.

[0025] In one of the embodiments, in the guide sections except the guide section at the tail end, the bottom surface of the third guide groove of each guide section is protruded from the bottom surface of the first guide groove of the adjacent guide section.

[0026] In one of the embodiments, the driving mechanism comprises a push rod and a first driving assembly, the push rod is arranged on the side of the sliding member away from the mounting member and is spaced apart from the sliding member, the first driving assembly is connected with the push rod, and the first driving assembly is configured to drive the push rod to approach or move away from the sliding member.

[0027] In the embodiment, the worker applies a pushing force to the sliding member, the pushing force drives the sliding member to move towards the mounting member, the distance between the sliding member and the mounting member gradually decreases, the elastic member is compressed by the sliding member and elastically deformed, the compressed elastic member applies an elastic force to the sliding member to offset part of the pushing force, in the process, the swing member rotates relative to the mounting member, the sliding contact member on the swing member slides in the stroke slot and is sequentially engaged with each engagement area on the stroke slot, when the sliding contact member is engaged with each engagement area, a resistance is generated between the sliding contact member and the engagement area, the resistance and the elastic force generated by the elastic member are offset, which can prevent the sliding member from moving away from the mounting member under the action of the elastic force after the worker removes the pushing force, and further lock the relative position relationship between the sliding member and the mounting member. Since the distance between each engagement area on the stroke slot and the mounting member is different, the sliding contact member can be locked at different positions away from the mounting member when the sliding contact member is engaged with different engagement areas, the multi-gear movement of the sliding member is realized, and further multi-gear driving is facilitated. In summary, the driving mechanism in the embodiment can realize the multi-gear movement of the sliding member in a smaller volume and at a lower cost by locking the sliding member through the engagement between the sliding contact member and the engagement area, and further realize multi-gear driving.

[0028] The application further provides a positioning device comprising the above-mentioned driving mechanism and a positioning assembly.

[0029] The positioning assembly comprises a positioning pin, a transmission platform connected with the positioning pin, and a second driving mechanism connected with the transmission platform, the second driving mechanism is configured to drive the transmission platform to move linearly.

[0030] The stop block is configured to move to different positions in front of the movement direction of the transmission platform and contact with the transmission platform to block the movement of the transmission platform when the sliding contact member is engaged with different engagement areas.

[0031] In the embodiment, the second driving mechanism drives the transmission platform to move linearly, the transmission platform drives the positioning pin to move synchronously, the worker applies a pushing force to the sliding piece, the pushing force drives the sliding piece to move towards the installation piece, the distance between the sliding piece and the installation piece gradually decreases, the elastic piece is compressed by the sliding piece and elastically deforms, the compressed elastic piece applies an elastic force to the sliding piece to offset part of the pushing force. In this process, on the one hand, the inclined surface on the sliding piece drives the stopper to move relative to the center of the sliding piece in the first direction, the distance between the stopper and the center of the sliding piece in the first direction gradually increases; on the other hand, the swing piece rotates relative to the installation piece, the sliding contact piece on the swing piece slides in the stroke slot and is sequentially engaged with each engagement area on the stroke slot. When the sliding contact piece is engaged with each engagement area, a resistance is generated between the sliding contact piece and the engagement area, the resistance and the elastic force generated by the elastic piece offset each other, so that after the worker removes the pushing force, the sliding piece is prevented from moving away from the installation piece under the action of the elastic force, thereby locking the relative position relationship between the sliding piece and the installation piece, maintaining the position of the stopper, facilitating the stopper to contact the transmission platform and block the movement of the transmission platform, and completing the limiting of the positioning pin.

[0032] Since the distance between each engagement area on the stroke slot and the installation piece is different, when the sliding contact piece is engaged with different engagement areas, the sliding piece can be limited at different positions away from the installation piece, the distance between the stopper and the center of the sliding piece in the first direction is different, thereby facilitating the stopper to prevent the movement of the transmission platform at different positions, and realizing the multi-gear movement of the positioning pin. In summary, the positioning device in the embodiment can realize the multi-gear movement of the sliding piece and complete the multi-gear support of the positioning pin with smaller volume and lower cost by locking the sliding piece through the engagement between the sliding contact piece and the engagement area. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments or example embodiments of the present application, the drawings needed to be used in the description of the embodiments or example embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0034] Figure 1 It is a structural schematic view of the driving mechanism in an embodiment of the present application.

[0035] Figure 2 It is a structural schematic view of the driving mechanism in an embodiment of the present application. Figure 1 It is a structural schematic view of the sliding piece in the driving mechanism shown in the figure.

[0036] Figure 3 It is a structural schematic view of the sliding piece in the driving mechanism shown in the figure. Figure 1 It is a structural schematic view of the sliding piece in the driving mechanism shown in the figure.

[0037] Figure 4 Fig. 1 is a schematic view of a positioning device according to an embodiment of the present application.

[0038] Reference signs:

[0039] Positioning device 1000;

[0040] Driving mechanism 1100, mounting piece 1110, elastic piece 1120, sliding piece 1130, inclined surface 1131, stroke slot 1140, guide segment 1141, first guide slot 1141-1, second guide slot 1141-2, third guide slot 1141-3, inclined surface 1141-4, transition surface 1142, transition angle 1143, engagement region 1144, swinging piece 1150, stop block 1160, stepped surface 1161, reference surface 1162, guide piece 1170, base 1171, guide seat 1172, guide rod 1173, first elastic piece 1174, limiting piece 1175, push rod 1180, first driving assembly 1190, first driving piece 1191, connecting piece 1192, stop ring 1193, second elastic piece 1194, mounting seat 1195;

[0041] Positioning assembly 1200, positioning pin 1210, transmission platform 1220, second driving mechanism 1230. DETAILED DESCRIPTION

[0042] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those described herein without departing from the spirit of the present application. It is therefore intended that the present application not be limited to the embodiments disclosed herein for purposes of disclosure.

[0043] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, if there are these terms "first", "second", these terms are only used for descriptive purposes, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if there are the terms "a plurality of", the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0045] In the present application, unless otherwise explicitly specified and limited, if there are terms "installation", "connection", "connection", "fixing" and the like, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the present application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on" or "below" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0047] It should be noted that if an element is referred to as "fixed to" or "disposed to" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0048] Please refer to Figures 1 to 3 , Figure 1A structural schematic diagram of the driving mechanism 1100 in an embodiment of the present application is shown. The driving mechanism 1100 provided by an embodiment of the present application includes a mounting member 1110, an elastic member 1120, a sliding member 1130, and a swinging member 1150. The elastic member 1120 is arranged on one side of the mounting member 1110. The sliding member 1130 is arranged on a side of the elastic member 1120 away from the mounting member 1110. One side of the sliding member 1130 is provided with a stroke slot 1140. The stroke slot 1140 is provided with a plurality of clamping regions 1144. The distance between each clamping region 1144 and the mounting member 1110 in a first direction is different. The first direction is parallel to the direction in which the elastic member 1120 is elastically deformed. One end of the swinging member 1150 is rotationally connected to the mounting member 1110. The other end is provided with a sliding contact member (not shown). The sliding contact member is slidably connected to the stroke slot 1140. In the process of reducing the distance between the sliding member 1130 and the mounting member 1110, the elastic member 1120 is elastically deformed and applies an elastic force (not shown) to the sliding member 1130. The sliding contact member slides in the stroke slot 1140 and can be clamped in each clamping region 1144 in turn. When the sliding contact member is clamped in the clamping region 1144, a resistance (not shown) that is counteracted by the elastic force is generated between the sliding contact member and the clamping region 1144.

[0049] In the embodiment, a worker applies a pushing force (not shown) to the sliding member 1130. The pushing force drives the sliding member 1130 to move towards the mounting member 1110. The distance between the sliding member 1130 and the mounting member 1110 gradually decreases. The elastic member 1120 is compressed by the sliding member 1130 and is elastically deformed. The compressed elastic member 1120 applies an elastic force to the sliding member 1130 to counteract part of the pushing force. In this process, the swinging member 1150 rotates relative to the mounting member 1110. The sliding contact member on the swinging member 1150 slides in the stroke slot 1140 and is clamped in each clamping region 1144 on the stroke slot 1140 in turn. When the sliding contact member is clamped in each clamping region 1144, a resistance is generated between the sliding contact member and the clamping region 1144. The resistance is counteracted by the elastic force generated by the elastic member 1120. The resistance can prevent the sliding member 1130 from moving away from the mounting member 1110 under the action of the elastic force after the worker removes the pushing force. In this way, the relative positional relationship between the sliding member 1130 and the mounting member 1110 is locked. In some embodiments, the worker can also apply a pushing force to the mounting member 1110 to achieve the purpose of gradually reducing the distance between the sliding member 1130 and the mounting member 1110.

[0050] Since the distance between each engagement region 1144 on the travel groove 1140 and the mounting member 1110 is different, the sliding member 1130 can be locked at different positions away from the mounting member 1110 when the sliding contact member engages with different engagement regions 1144, thereby achieving multi-gear movement of the sliding member 1130, and further facilitating multi-gear driving. In summary, the driving mechanism 1100 in the embodiment can achieve multi-gear movement of the sliding member 1130 in a smaller volume and at a lower cost by locking the sliding member 1130 through engagement of the sliding contact member with the engagement region 1144, and further achieving multi-gear driving.

[0051] Please refer to Figures 1 to 3 In some embodiments, the sliding member 1130 is provided with an inclined surface 1131 on the side close to the mounting member 1110. The distance between the inclined surface 1131 and the center of the sliding member 1130 in the second direction gradually decreases in the direction of approaching the mounting member 1110 in the first direction. The driving mechanism 1100 further comprises a stop block 1160 in contact with the inclined surface 1131. During the process of the distance between the sliding member 1130 and the mounting member 1110 becoming smaller, the inclined surface 1131 pushes the stop block 1160 to move in the second direction relative to the center of the sliding member 1130, and the distance between the stop block 1160 and the center of the sliding member 1130 in the second direction gradually increases. The second direction is arranged intersecting the first direction.

[0052] In the embodiment, during the process of the distance between the sliding member 1130 and the mounting member 1110 becoming smaller, on the one hand, the inclined surface 1131 pushes the stop block 1160 to move in the second direction relative to the center of the sliding member 1130, and the distance between the stop block 1160 and the center of the sliding member 1130 in the second direction gradually increases; on the other hand, the swing member 1150 rotates relative to the mounting member 1110, the sliding contact member on the swing member 1150 slides in the travel groove 1140 and engages with each engagement region 1144 on the travel groove 1140 in turn. When the sliding contact member engages with each engagement region 1144, the worker removes the pushing force, and the resistance between the sliding contact member and the engagement region 1144 counteracts the elastic force, the relative positional relationship between the sliding member 1130 and the mounting member 1110 is fixed, and the stop block 1160 stops moving.

[0053] Since the distance between each engagement region 1144 on the travel groove 1140 and the mounting member 1110 is different, the sliding member 1130 can be locked at different positions away from the mounting member 1110 when the sliding contact member engages with different engagement regions 1144, thereby maintaining the stop block 1160 at different positions away from the center of the sliding member 1130 in the second direction, achieving multi-gear movement of the stop block 1160, and further facilitating multi-gear driving of the stop block 1160.

[0054] In some embodiments, the sliding member 1130 is provided with two inclined surfaces 1131 near one side of the mounting member 1110, the two inclined surfaces 1131 are arranged in the second direction and gradually decrease in distance from the center of the sliding member 1130 in the second direction; the driving mechanism 1100 comprises two stoppers 1160, the two stoppers 1160 are arranged corresponding to the two inclined surfaces 1131, and each stopper 1160 is in contact with the corresponding inclined surface 1131.

[0055] Please refer to Figures 1 to 3 In some embodiments, the stopper 1160 is provided with a plurality of stepped surfaces 1161 arranged in the second direction on one side in the third direction, and is provided with a reference surface 1162 on the other side in the third direction, the first direction and the second direction are arranged intersecting the third direction, the plurality of stepped surfaces 1161 are arranged corresponding to the plurality of clamping regions 1144, and the distance between each stepped surface 1161 and the reference surface 1162 is different in the second direction, when the sliding contact member is clamped with each clamping region 1144, the corresponding stepped surface 1161 is configured to move to the front of the movement direction of the object to be limited (not shown) to block the movement of the object to be limited.

[0056] In this embodiment, when the sliding contact member is clamped with different clamping regions 1144, the sliding member 1130 is limited at different positions away from the mounting member 1110, the stopper 1160 is moved to different positions away from the center of the sliding member 1130 in the second direction under the pushing of the inclined surface 1131, and different stepped surfaces 1161 on the stopper 1160 will move to the front of the movement direction of the object to be limited, thereby blocking the movement of the object to be limited, since the distance between each stepped surface 1161 and the reference surface 1162 is different, when different stepped surfaces 1161 move to the front of the movement direction of the object to be limited, the object to be limited will be limited at different positions, thereby facilitating the multi-gear movement of the object to be limited.

[0057] It should be noted that the limiting object refers to the positioning pin 1210.

[0058] In some embodiments, the distance between each stepped surface 1161 and the reference surface 1162 gradually decreases in the direction away from the center of the sliding member 1130 in the second direction.

[0059] In some embodiments, the driving mechanism 1100 comprises a guide 1170, the guide 1170 comprises a base 1171 and two guide seats 1172, the mounting member 1110 and the sliding member 1130 are arranged on one side of the base 1171 along the third direction, and the two guide seats 1172 are arranged correspondingly to the two stoppers 1160, and each stopper 1160 is slidingly connected to the corresponding guide seat 1172 along the second direction.

[0060] In some embodiments, each guide seat 1172 is arranged at a side of the corresponding stopper 1160 away from the sliding member 1130 along the second direction, and the guide 1170 comprises two guide rods 1173 extending along the second direction, and each guide seat 1172 and the corresponding stopper 1160 are provided with the guide rod 1173, one end of the guide rod 1173 is connected to the stopper 1160, and the other end is arranged through the guide seat 1172.

[0061] In some embodiments, the guide 1170 comprises two first elastic members 1174, each guide seat 1172 and the corresponding stopper 1160 are provided with the first elastic member 1174, the two first elastic members 1174 are arranged correspondingly to the two guide rods 1173, and each first elastic member 1174 is sleeved on the outer periphery of the corresponding guide rod 1173.

[0062] In some embodiments, the guide 1170 comprises a limiting member 1175 located at a side of the elastic member 1120 away from the mounting member 1110, the limiting member 1175 is connected to the base 1171, the limiting member 1175 is provided with a limiting groove (not shown) extending along the arrangement direction of the sliding member 1130 and the mounting member 1110, the sliding member 1130 is arranged through the limiting groove and is slidingly connected to the limiting member 1175.

[0063] In some embodiments, the sliding member 1130 is provided with a stroke groove 1140 at one side along the third direction.

[0064] Please refer to Figures 1 to 3 In some embodiments, the stroke groove 1140 comprises a plurality of guide segments 1141 connected in sequence, the guide segment 1141 comprises a first guide groove 1141-1 and a second guide groove 1141-2, the first guide groove 1141-1 and the second guide groove 1141-2 are communicated and form a transition angle 1143, the opening direction of the transition angle 1143 is opposite to the direction of the elastic force applied by the elastic member 1120 to the sliding member 1130, the second guide groove 1141-2 of one of the two adjacent guide segments 1141 is communicated with the first guide groove 1141-1 of the other guide segment 1141 and forms an engagement area 1144, and the opening direction of the engagement area 1144 is the same as the direction of the elastic force applied by the elastic member 1120 to the sliding member 1130.

[0065] In this embodiment, the worker applies a pushing force to the sliding member 1130, the pushing force drives the sliding member 1130 to move towards the mounting member 1110, the distance between the sliding member 1130 and the mounting member 1110 gradually decreases, the elastic member 1120 is compressed by the sliding member 1130 and elastically deformed, the compressed elastic member 1120 applies an elastic force to the sliding member 1130 to offset part of the pushing force, in this process, the swing member 1150 rotates relative to the mounting member 1110, the sliding contact on the swing member 1150 slides along the first guide groove 1141-1 in any guide section 1141, when the sliding contact slides to the transition angle 1143 formed by the first guide groove 1141-1, the worker removes the pushing force, the elastic force of the elastic member 1120 drives the sliding member 1130 to move away from the mounting member 1110, the sliding contact passes the transition angle 1143 and enters the subsequent second guide groove 1141-2, and slides along the second guide groove 1141-2 until it is clamped by the clamping area 1144 at the end of the second guide groove 1141-2 away from the transition angle 1143, the sliding contact stops moving, the resistance between the sliding contact and the clamping area 1144 offsets the elastic force, preventing the elastic force from driving the sliding member 1130, the sliding member 1130 is limited, and the distance between the sliding member 1130 and the mounting member 1110 remains unchanged.

[0066] Please refer to Figures 1 to 3 In some embodiments, the extension direction of the at least one first guide groove 1141-1 is parallel to the deformation direction of the elastic member 1120.

[0067] In this embodiment, by setting the extension direction of the first guide groove 1141-1 parallel to the deformation direction of the elastic member 1120, it is convenient for the worker to push the sliding member 1130 towards the mounting member 1110, and the sliding contact slides in the first guide groove 1141-1.

[0068] Please refer to Figures 1 to 3 In some embodiments, the bottom surface of the first guide groove 1141-1 protrudes from the bottom surface of the second guide groove 1141-2, the guide section 1141 includes a third guide groove 1141-3 and a slope 1141-4, the third guide groove 1141-3 communicates with the second guide groove 1141-2, the bottom surface of the third guide groove 1141-3 protrudes from the bottom surface of the second guide groove 1141-2, one end of the slope 1141-4 is connected to the bottom surface of the third guide groove 1141-3, and the other end is connected to the bottom surface of the second guide groove 1141-2, among the two adjacent guide sections 1141, the third guide groove 1141-3 of one guide section 1141 communicates with the first guide groove 1141-1 of the other guide section 1141.

[0069] In this embodiment, first, the staff applies a pushing force to the sliding member 1130, the pushing force pushes the sliding member 1130 to move towards the installation member 1110, the distance between the sliding member 1130 and the installation member 1110 gradually decreases, the elastic member 1120 is compressed by the sliding member 1130 and elastically deformed, the compressed elastic member 1120 applies an elastic force to the sliding member 1130 to offset part of the pushing force. In this process, the swing member 1150 rotates relative to the installation member 1110, the sliding contact on the swing member 1150 slides along the first guide groove 1141-1 in any guide section 1141, and enters the subsequent second guide groove 1141-2 through the transition angle 1143 formed by the first guide groove 1141-1. Then, the staff removes the pushing force, the elastic force of the elastic member 1120 begins to push the sliding member 1130 to move away from the installation member 1110. Since the bottom surface of the first guide groove 1141-1 protrudes from the bottom surface of the second guide groove 1141-2, the sliding contact will not return to the first guide groove 1141-1, but continue to move along the second guide groove 1141-2, and enter the third guide groove 1141-3 through the inclined surface 1141-4. From the third guide groove 1141-3, enter the first guide groove 1141-1 in another adjacent guide section 1141, until the first guide groove 1141-1 in the adjacent guide section 1141 is engaged with the engagement area 1144 formed by the first guide groove 1141-1 in the adjacent guide section 1141. The sliding contact stops moving, and the resistance between the sliding contact and the engagement area 1144 offsets the elastic force, preventing the elastic force from pushing the sliding member 1130. The sliding member 1130 is limited, and the distance between the sliding member 1130 and the installation member 1110 remains unchanged.

[0070] Please refer to Figures 1 to 3 In some embodiments, among the plurality of guide sections 1141 connected in sequence, the bottom surface of the first guide groove 1141-1 of the guide section 1141 at the head end protrudes from the bottom surface of the third guide groove 1141-3 of the guide section 1141 at the tail end, and the stroke groove 1140 includes a transition surface 1142. One end of the transition surface 1142 is connected to the bottom surface of the first guide groove 1141-1 of the guide section 1141 at the head end, and the other end of the transition surface 1142 is connected to the bottom surface of the third guide groove 1141-3 of the guide section 1141 at the tail end.

[0071] In this embodiment, by setting the bottom surface of the first guide groove 1141-1 of the guide segment 1141 at the leading end protruding from the bottom surface of the third guide groove 1141-3 of the guide segment 1141 at the trailing end, when the elastic force of the elastic member 1120 pushes the sliding member 1130 away from the mounting member 1110, the sliding contact piece on the swing member 1150 can be prevented from sliding from the third guide groove 1141-3 of the guide segment 1141 at the trailing end into the first guide groove 1141-1 of the guide segment 1141 at the leading end under the action of the elastic force. By setting one end of the transition surface 1142 connected to the bottom surface of the first guide groove 1141-1 of the guide segment 1141 at the leading end and the other end of the transition surface 1142 connected to the bottom surface of the third guide groove 1141-3 of the guide segment 1141 at the trailing end, when the worker applies a pushing force to push the sliding member 1130 close to the mounting member 1110, the sliding contact piece on the swing member 1150 can be facilitated to slide from the engagement area 1144 formed by the third guide groove 1141-3 of the guide segment 1141 at the trailing end, through the transition surface 1142, and into the first guide groove 1141-1 of the guide segment 1141 at the leading end.

[0072] Referring to Figures 1 to 3 In some embodiments, the bottom surface of the third guide groove 1141-3 of each guide segment 1141 is protruded from the bottom surface of the first guide groove 1141-1 of the adjacent guide segment 1141, except for the guide segment 1141 at the trailing end.

[0073] In this embodiment, by setting the bottom surface of the third guide groove 1141-3 of each guide segment 1141 protruded from the bottom surface of the first guide groove 1141-1 of the adjacent guide segment 1141, except for the guide segment 1141 at the trailing end, when the sliding contact piece on the swing member 1150 enters the first guide groove 1141-1 of the adjacent guide segment 1141 from the third guide groove 1141-3 of the guide segment 1141, except for the guide segment 1141 at the trailing end, the sliding contact piece on the swing member 1150 cannot retreat back into the third guide groove 1141-3, but can only continue to slide along the first guide groove 1141-1 of the adjacent guide segment 1141.

[0074] Referring to Figures 1 to 4 In some embodiments, the driving mechanism 1100 includes a push rod 1180 and a first driving assembly 1190. The push rod 1180 is arranged on the side of the sliding member 1130 away from the mounting member 1110 and is spaced apart from the sliding member 1130. The first driving assembly 1190 is connected to the push rod 1180 and is configured to drive the push rod 1180 to move close to or away from the sliding member 1130.

[0075] In this embodiment, when a pushing force is to be applied to the sliding member 1130, the first driving assembly 1190 drives the push rod 1180 to approach the sliding member 1130, the push rod 1180 contacts the sliding member 1130, and pushes the sliding member 1130 to approach the mounting member 1110, so that the elastic member 1120 is elastically deformed; when the pushing force applied to the sliding member 1130 is to be removed, the first driving assembly 1190 drives the push rod 1180 to move away from the sliding member 1130, the push rod 1180 is separated from the sliding member 1130, and the elastic force generated by the elastic member 1120 pushes the sliding member 1130 to move away from the mounting member 1110.

[0076] In some embodiments, the first driving assembly 1190 includes a mounting seat 1195, the mounting seat 1195 is located on the side of the sliding member 1130 away from the mounting member 1110 and is arranged in a spaced manner with the sliding member 1130, the push rod 1180 extends along the arrangement direction of the mounting member 1110 and the sliding member 1130, the mounting seat 1195 is sleeved on the outer periphery of the push rod 1180, the push rod 1180 is in sliding connection with the mounting seat 1195 and can slide relative to the mounting seat 1195 along the arrangement direction of the sliding member 1130 and the mounting member 1110.

[0077] In some embodiments, one end of the push rod 1180 close to the sliding member 1130 is provided with a push block (not shown), the diameter of the push block is greater than the diameter of the push rod 1180, and the push block is used to prevent the push rod 1180 from being separated from the mounting seat 1195 during the process of moving away from the sliding member 1130.

[0078] In some embodiments, the first driving assembly 1190 includes a plurality of retaining rings 1193, the plurality of retaining rings 1193 are located on the side of the mounting seat 1195 away from the sliding member 1130, the plurality of retaining rings 1193 are arranged in a spaced manner along the axis of the push rod 1180 and are sleeved on the outer periphery of the push rod 1180, and the retaining ring 1193 is used to prevent the push rod 1180 from being separated from the mounting seat 1195 during the process of approaching the sliding member 1130.

[0079] In some embodiments, the first driving assembly 1190 includes a second elastic member 1194, the second elastic member 1194 is located between the mounting seat 1195 and the plurality of retaining rings 1193, the second elastic member 1194 is sleeved on the outer periphery of the push rod 1180, when the push rod 1180 approaches the sliding member 1130, the distance between the retaining ring 1193 and the mounting seat 1195 decreases, and the second elastic member 1194 is elastically deformed; when the push rod 1180 moves away from the sliding member 1130, the distance between the retaining ring 1193 and the mounting seat 1195 increases, and the second elastic member 1194 gradually recovers to the initial state.

[0080] In some embodiments, the first driving assembly 1190 comprises a first driving member 1191 and a connecting member 1192, the first driving member 1191 is located at the outer periphery of the push rod 1180, the active end of the first driving member 1191 is connected with the connecting member 1192, the first driving member 1191 is configured to drive the connecting member 1192 to move along the arrangement direction of the sliding member 1130 and the mounting member 1110, and the connecting member 1192 is clamped with the part of the push rod 1180 between any two adjacent blocking rings 1193.

[0081] In the embodiment, when the pushing force is to be applied to the sliding member 1130, the first driving member 1191 drives the connecting member 1192 to move along the arrangement direction of the sliding member 1130 and the mounting member 1110 to approach the sliding member 1130, the connecting member 1192 drives the push rod 1180 to move synchronously, the push rod 1180 pushes the sliding member 1130 to approach the mounting member 1110, the distance between the blocking ring 1193 and the mounting seat 1195 is reduced, and the second elastic member 1194 is elastically deformed. Since the power source of the entire driving mechanism 1100 completely comes from the first driving member 1191, that is, the entire driving mechanism 1100 has only one driver, the driving mechanism 1100 realizes the multiple gear movements of the sliding member 1130, the number of drivers used is small, the structure of the driving mechanism 1100 is more compact, and the manufacturing cost is lower.

[0082] In some embodiments, the first driving member 1191 is a linear cylinder, since the first driving member 1191 is not coaxial with the push rod 1180, it is convenient for the staff to arrange the air pipe of the linear cylinder.

[0083] Please refer to Figure 4 , ​ The structure schematic diagram of the positioning device 1000 in an embodiment of the application is shown. The positioning device 1000 provided by an embodiment of the application comprises the above-mentioned driving mechanism 1100, and a positioning assembly 1200, the positioning assembly 1200 comprises a positioning pin 1210, a transmission platform 1220 connected with the positioning pin 1210, and a second driving mechanism 1230 connected with the transmission platform 1220, the second driving mechanism 1230 is configured to drive the transmission platform 1220 to move linearly, the blocking block 1160 is configured to, when the sliding contact member is clamped with different clamping areas 1144, move to different positions in front of the movement direction of the transmission platform 1220 and contact with the transmission platform 1220 to block the movement of the transmission platform 1220.

[0084] In this embodiment, the second driving mechanism 1230 drives the transmission platform 1220 to move linearly, and the transmission platform 1220 drives the positioning pin 1210 to move synchronously. The worker applies a pushing force to the sliding piece 1130, and the pushing force drives the sliding piece 1130 to move towards the installation piece 1110. The distance between the sliding piece 1130 and the installation piece 1110 gradually decreases, the elastic piece 1120 is compressed by the sliding piece 1130 and elastically deforms, and the compressed elastic piece 1120 applies an elastic force to the sliding piece to offset part of the pushing force. In this process, on one hand, the inclined surface 1131 on the sliding piece 1130 drives the stopper 1160 to move relative to the center of the sliding piece 1130 in the second direction, and the distance between the stopper 1160 and the center of the sliding piece 1130 in the second direction gradually increases; on the other hand, the swing piece 1150 rotates relative to the installation piece 1110, the sliding contact piece on the swing piece 1150 slides in the stroke slot 1140 and is sequentially clamped on each clamping area 1144 on the stroke slot 1140. When the sliding contact piece is clamped on each clamping area 1144, a resistance is generated between the sliding contact piece and the clamping area 1144, which offsets the elastic force generated by the elastic piece 1120, so as to prevent the sliding piece 1130 from moving away from the installation piece 1110 under the action of the elastic force after the worker removes the pushing force, thereby locking the relative position relationship between the sliding piece 1130 and the installation piece 1110, maintaining the position of the stopper 1160, facilitating the contact between the stopper 1160 and the transmission platform 1220, and blocking the movement of the transmission platform 1220, and completing the limiting of the positioning pin 1210.

[0085] Since the distance between each clamping area 1144 on the stroke slot 1140 and the installation piece 1110 is different, when the sliding contact piece is clamped on different clamping areas 1144, the sliding piece 1130 can be limited at different positions away from the installation piece 1110, the distance between the stopper 1160 and the center of the sliding piece 1130 in the second direction is different, thereby facilitating the stopper 1160 to prevent the transmission platform 1220 from moving at different positions, and realizing the multi-gear movement of the positioning pin 1210. In summary, the positioning device 1000 in this embodiment can realize the multi-gear movement of the sliding piece 1130 and complete the multi-gear support of the positioning pin 1210 in a smaller volume and lower cost by locking the sliding piece 1130 through the clamping of the sliding contact piece and the clamping area 1144.

[0086] It needs to be further explained that since the positioning pin 1210 can move to different positions and then stop, for different thicknesses of the to-be-positioned workpiece (not shown), the positioning pin 1210 can extend into the positioning hole (not shown) in the to-be-positioned workpiece without protruding from the surface of the to-be-positioned workpiece, the applicability of the positioning device 1000 is higher, thereby avoiding the machining hidden danger caused by the positioning pin 1210 protruding too much from the surface of the to-be-positioned workpiece, and improving the safety and reliability when other equipment machines the surface of the to-be-positioned workpiece.

[0087] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present disclosure.

[0088] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A drive mechanism characterized by, The drive mechanism comprises: a mounting member; a resilient member arranged on one side of the mounting member; a sliding member arranged on the side of the resilient member away from the mounting member, one side of the sliding member being provided with a stroke slot, a plurality of clamping regions being arranged on the stroke slot, the distance between each clamping region and the mounting member in a first direction being different, the first direction being parallel to the direction in which the resilient member is elastically deformed; a swing member, one end of the swing member being rotationally connected to the mounting member, the other end being provided with a sliding contact member, the sliding contact member being slidably connected to the stroke slot; in the process of the distance between the sliding member and the mounting member becoming smaller, the resilient member is elastically deformed and applies an elastic force to the sliding member, the sliding contact member slides in the stroke slot and can be clamped in each clamping region in turn, when the sliding contact member is clamped in the clamping region, a resistance between the sliding contact member and the clamping region counteracts the elastic force.

2. The drive mechanism of claim 1, wherein, The side of the sliding member close to the mounting member is provided with an inclined surface, in the direction of approaching the mounting member along the first direction, the distance between the inclined surface and the center of the sliding member in a second direction gradually decreases; the drive mechanism further comprises a stop block, the stop block is in contact with the inclined surface, in the process of the distance between the sliding member and the mounting member becoming smaller, the inclined surface pushes the stop block to move relative to the center of the sliding member along the second direction, the distance between the stop block and the center of the sliding member in the second direction gradually increases, the second direction intersects the first direction.

3. The drive mechanism of claim 2, wherein, the side of the stop block along a third direction is provided with a plurality of stepped surfaces arranged along the second direction, the other side of the stop block along the third direction is provided with a reference surface, the first direction and the second direction both intersect the third direction; the plurality of stepped surfaces are correspondingly arranged with the plurality of clamping regions, and the distance between each stepped surface and the reference surface in the second direction is different; in the process of the distance between the sliding member and the mounting member becoming smaller, when the sliding contact member is clamped in any clamping region, the corresponding stepped surface is configured to move to the front of the direction of movement of the object to be limited to block the movement of the object to be limited.

4. The drive mechanism of claim 1, wherein, the stroke slot comprises a plurality of guide segments connected in sequence, the guide segment comprises a first guide slot and a second guide slot, the first guide slot and the second guide slot are communicated and form a transition angle, the opening direction of the transition angle is opposite to the direction of the elastic force applied by the resilient member to the sliding member; in the two adjacent guide segments, the second guide slot of one of the guide segments is communicated with the first guide slot of the other guide segment and forms the clamping region, the opening direction of the clamping region is the same as the direction of the elastic force applied by the resilient member to the sliding member.

5. The drive mechanism of claim 4, wherein, the extension direction of at least one first guide slot is parallel to the deformation direction of the resilient member.

6. The drive mechanism of claim 4, wherein, the bottom surface of the first guide slot protrudes from the bottom surface of the second guide slot; The guide section comprises a third guide groove and a slope, the third guide groove is communicated with the second guide groove, the bottom surface of the third guide groove is protruded from the bottom surface of the second guide groove, one end of the slope is connected with the bottom surface of the third guide groove, and the other end of the slope is connected with the bottom surface of the second guide groove; In the two adjacent guide sections, the third guide groove of one guide section is communicated with the first guide groove of the other guide section.

7. The drive mechanism of claim 6, wherein, In the plurality of guide sections connected in sequence, the bottom surface of the first guide groove of the guide section at the head end is protruded from the bottom surface of the third guide groove of the guide section at the tail end. The stroke groove comprises a transition surface, one end of the transition surface is connected with the bottom surface of the first guide groove of the guide section at the head end, and the other end of the transition surface is connected with the bottom surface of the third guide groove of the guide section at the tail end.

8. The drive mechanism of claim 7, wherein, In the guide sections except the guide section at the tail end, the bottom surface of the third guide groove of each guide section is protruded from the bottom surface of the first guide groove of the adjacent guide section.

9. The drive mechanism of claim 1, wherein, The driving mechanism comprises a push rod and a first driving assembly, the push rod is arranged on the side of the sliding piece away from the mounting piece and is spaced from the sliding piece, the first driving assembly is connected with the push rod, and the first driving assembly is configured to drive the push rod to move close to or away from the sliding piece.

10. A positioning device, characterized by The driving mechanism comprises the driving mechanism according to any one of claims 2-9, and a positioning assembly; The positioning assembly comprises a positioning pin, a transmission platform connected with the positioning pin, and a second driving mechanism connected with the transmission platform, the second driving mechanism is configured to drive the transmission platform to move linearly; The stop block is configured to move to different positions in front of the movement direction of the transmission platform and contact with the transmission platform to block the movement of the transmission platform when the sliding contact piece is engaged with different engagement regions.

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