Variable-pitch clamping jaw structure

Abstract

The utility model provides a variable-pitch clamping jaw structure. The variable-pitch clamping jaw structure comprises a rack; the at least two clamping jaw mechanisms are in sliding connection with the rack and are sequentially arranged at intervals; the distance adjusting mechanism is connected with the clamping jaw mechanisms, and the distance adjusting mechanism is configured to drive the clamping jaw mechanisms to move so as to adjust the distance between every two adjacent clamping jaw mechanisms; and the at least two reversing assemblies correspond to the clamping jaw mechanisms in a one-to-one mode, and the reversing assemblies are configured to drive part of the clamping jaw mechanisms to rotate when the clamping jaw mechanisms move, so that the clamping jaw mechanisms can synchronously rotate in the pitch changing process during movement, and the direction of the workpiece is changed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery processing, and in particular to a variable-distance gripper structure. BACKGROUND

[0002] A battery pack is mainly processed through an automatic production line. In the processing process, sometimes multiple batteries are synchronously grabbed by a gripper, and the batteries are transferred to different stations for corresponding operations.

[0003] At present, in order to adapt to the requirements of different stations on the placement distance between adjacent batteries, some variable-distance gripper structures also appear. The variable-distance gripper structure changes the distance between adjacent grippers by being equipped with a pneumatic cylinder or other distance adjustment structure, so that the distance between adjacent batteries is adjusted when the gripper carries the batteries to different stations.

[0004] However, in some cases, different stations not only have different requirements on the placement distance between adjacent batteries, but also have different requirements on the placement direction of the batteries. Corresponding to this situation, after the variable-distance gripper structure grabs the batteries, the batteries are placed in a special reversing mechanism for reversing, and then the batteries are grabbed again and carried to the corresponding station, which is a relatively complex process. CONTENT OF THE INVENTION

[0005] The present application provides a variable-distance gripper structure to achieve the effect of changing the angle of the battery and adjusting the distance between adjacent batteries during the carrying process of the battery.

[0006] The present application provides a variable-distance gripper structure, comprising:

[0007] a rack;

[0008] at least two gripper mechanisms, which are slidingly connected with the rack and are arranged in sequence with intervals;

[0009] a distance adjustment mechanism connected with the gripper mechanism, the distance adjustment mechanism being configured to drive the gripper mechanism to move to adjust the distance between adjacent two gripper mechanisms;

[0010] at least two reversing assemblies corresponding to the gripper mechanisms one by one, the reversing assemblies being configured to drive part of the gripper mechanisms to rotate when the gripper mechanisms move.

[0011] In some possible embodiments of the present application, the reversing assembly comprises:

[0012] a first adjusting component connected with the rack;

[0013] a second adjusting component connected with the gripper mechanism, the second adjusting component being configured to cooperate with the first adjusting component to push part of the gripper mechanisms to rotate under the driving of the gripper mechanisms.

[0014] In some possible implementation manners of the present application, the clamping jaw mechanism comprises a clamping piece and a guide piece rotationally connected with the clamping piece, the guide piece is slidingly connected with the rack, and the guide piece or the clamping piece is connected with the distance adjusting mechanism through a connecting piece;

[0015] The second adjusting component is arranged on the guide piece, and the second adjusting component drives the clamping piece to rotate relative to the guide piece, and the clamping piece is used for clamping a workpiece.

[0016] In some possible implementation manners of the present application, the connecting piece is provided with a transmission gear;

[0017] The second adjusting component is provided with a plurality of transmission teeth for engaging with the transmission gear;

[0018] The second adjusting component is configured to move towards the first adjusting component under the driving of the guide piece to abut against the corresponding first adjusting component.

[0019] The first adjusting component is configured to push the second adjusting component to move to drive the clamping piece to rotate through the transmission gear and the transmission teeth when abutting against the corresponding second adjusting component.

[0020] In some possible implementation manners of the present application, the first adjusting component is provided with an inclined surface, the second adjusting component abuts against the inclined surface and moves along the inclined surface to drive part of the clamping jaw mechanism to rotate.

[0021] In some possible implementation manners of the present application, the second adjusting component is provided with a roller, and the roller is in rolling contact with the inclined surface.

[0022] In some possible implementation manners of the present application, the second adjusting component is provided with an elastic piece, the elastic piece applies a force to the first adjusting component through the second adjusting component to keep the second adjusting component in contact with the first adjusting component.

[0023] In some possible implementation manners of the present application, the rack is provided with a guide groove, and the clamping jaw mechanism moves along the guide groove.

[0024] In some possible implementation manners of the present application, the distance between each first adjusting component and the guide groove gradually decreases from the middle of the rack to the edge of the rack.

[0025] In some possible embodiments of the present application, the guide comprises a first guide plate, a second guide plate, and at least one connecting plate, the connecting plate being connected to the first guide plate and the second guide plate respectively, and the first guide plate and the second guide plate being arranged on opposite surfaces of the rack respectively.

[0026] The clamping member is rotationally connected to at least one of the first guide plate and the second guide plate, and the second adjusting component is located between the first guide plate and the rack or between the second guide plate and the rack, and the first adjusting component and the second adjusting component are located on the same side of the rack.

[0027] In some possible embodiments of the present application, at least one first connecting portion is arranged on the rack, and the first connecting portion is in the same direction as the extension direction of the guide groove.

[0028] At least one second connecting portion is arranged on the first guide plate and the second guide plate, and the second connecting portion cooperates with the first connecting portion to limit the moving direction of the guide.

[0029] In some possible embodiments of the present application, the distance adjusting mechanism comprises:

[0030] A driving member is arranged on the rack.

[0031] A connecting rod group comprises at least two connecting rods, the connecting rods being connected to the jaw mechanism in pairs, the end portions of adjacent two connecting rods being rotationally connected, and the connecting rod adjacent to the driving member being rotationally connected to the output end of the driving member.

[0032] The driving member is configured to drive the connecting point of the connecting rod and the driving member to move, so that the connecting rod rotates to adjust the position of the jaw mechanism.

[0033] In some possible embodiments of the present application, one connecting rod group is arranged on each side of the driving member, and the driving member is configured to drive the two connecting rod groups to move in opposite directions.

[0034] The variable-distance clamping jaw structure provided by the embodiment of the present application comprises a rack, a distance adjusting mechanism, at least two clamping jaw mechanisms and a reversing assembly. The clamping jaw mechanism is in sliding connection with the rack. The reversing assembly is in one-to-one correspondence with the clamping jaw mechanism. The distance adjusting mechanism is connected with the clamping jaw mechanism and can drive the clamping jaw mechanism to move along the rack, so that the distance between adjacent clamping jaw mechanisms changes to adapt to the distance requirement between adjacent workpieces in different workstations. While the distance adjusting mechanism drives the clamping jaw mechanism to move, the reversing assembly drives the clamping jaw mechanism to rotate under the driving of the clamping jaw mechanism, so that the clamping jaw mechanism rotates to a required angle. Therefore, the workpiece clamped by the clamping jaw mechanism also rotates to a suitable angle. In the process of clamping multiple workpieces and transporting the workpieces from a previous workstation to a next workstation, the distance between adjacent workpieces and the placement angle of the workpiece can be directly adjusted according to the processing requirement of the next workstation. Compared with the existing variable-distance clamping jaw structure, the workpiece does not need to be placed on a special reversing device for reversing, and the workpiece transport efficiency can be effectively improved, thereby assisting in improving the workpiece processing efficiency. Meanwhile, the reversing mechanism is driven by the clamping jaw mechanism, so that only the driving force provided by the distance adjusting mechanism is needed, and the overall structure is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 A structural schematic view of a first state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 1.

[0037] Figure 2 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2. Figure 1 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2.

[0038] Figure 3 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2. Figure 1 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2.

[0039] Figure 4 A structural schematic view of a second state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 3.

[0040] Figure 5 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2. Figure 4 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2.

[0041] Figure 6 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2. Figure 4 A structural schematic view of another state of the variable-distance clamping jaw structure provided by the embodiment of the present application is shown in FIG. 2.

[0042] Explanation of reference signs:

[0043] 100 - rack; 110 - first connecting part; 120 - guide groove;

[0044] 200 - jaw mechanism; 210 - guide; 211 - first guide plate; 212 - second guide plate; 220 - clamping member; 230 - connecting member; 240 - transmission gear;

[0045] 300 - distance adjusting mechanism; 310 - driving member; 320 - connecting rod;

[0046] 400 - reversing assembly; 410 - first adjusting component; 420 - second adjusting component; 421 - transmission member; 423 - roller; 424 - transmission tooth; 425 - elastic member; 426 - sliding block;

[0047] 500 - limiting seat.

[0048] The specific embodiments of the present application have been shown in the above-mentioned drawings, and will be described in more detail hereinafter. These drawings and the following description are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, unless the context of use indicates otherwise. The following description of exemplary embodiments is not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims.

[0050] As described in the background section, during the processing of the battery, in some cases, a plurality of batteries need to be gripped by the jaw for carrying. For example, when assembling a battery pack, a plurality of batteries may need to be simultaneously gripped from the frame by the jaw, and the placement angle of the battery and the distance between adjacent batteries during assembly are strictly required.

[0051] At this time, the battery is generally gripped by the jaw on the reversing and distance changing device for corresponding adjustment, and then gripped to the corresponding work station for processing. The whole process is relatively cumbersome, which needs to consume a long time, and multiple devices are needed, resulting in a large size of the whole device, occupying a large space, and having a high cost.

[0052] To solve the above problems, the embodiment of the present application provides a variable-distance clamping jaw structure. In the process of clamping multiple workpieces and transporting the workpieces from a previous work station to a next work station, the variable-distance clamping jaw structure can directly adjust the distance between adjacent workpieces and the placement angle of the workpieces according to the processing requirements of the next work station. Compared with the existing variable-distance clamping jaw structure, the workpieces do not need to be placed on a special reversing device for reversing, and the workpiece transport efficiency can be effectively improved, thereby assisting in improving the workpiece processing efficiency.

[0053] The technical solutions of the present application and how the technical solutions solve the above technical problems will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0054] In some embodiments of the present application, referring to Figure 1 The variable-distance clamping jaw structure includes a rack 100, a distance adjusting mechanism 300, at least two clamping jaw mechanisms 200, and at least two reversing assemblies 400.

[0055] The clamping jaw mechanisms 200 are arranged in sequence on the rack 100, i.e., arranged in sequence along the X direction in the figure, and are in sliding connection with the rack 100, so as to be movable relative to the rack 100 along the X direction. The distance adjusting mechanism 300 is connected with the clamping jaw mechanisms 200, and the distance adjusting mechanism 300 is used to drive the clamping jaw mechanisms 200 to move, so as to adjust the distance between adjacent two clamping jaw mechanisms 200. That is, the distance adjusting mechanism 300 can drive each clamping jaw to move by different or same distances, as long as the distance between adjacent clamping jaws can be changed, until the distance between adjacent workpieces meets the requirements of the work station for placing workpieces. Figure 1 The reversing assembly 400 corresponds to the clamping jaw mechanism 200 in one-to-one correspondence. When the clamping jaw mechanism 200 is driven by the distance adjusting mechanism 300 to move along the rack 100, the clamping jaw mechanism 200 drives the reversing assembly 400 to drive the corresponding clamping jaw mechanism 200 to rotate, so as to adjust the angle of the clamping jaw mechanism 200. The workpiece clamped by the clamping jaw mechanism 200 can be rotated to an angle that meets the requirements of the work station for placing workpieces.

[0056] Specifically, the part of the clamping jaw mechanism 200 can rotate relative to the rack 100, and the reversing assembly 400 is used to drive the part of the clamping jaw mechanism 200 that can rotate relative to the rack 100 to rotate. It can be understood that the part of the clamping jaw mechanism 200 for clamping the workpiece is located in the rotatable part, so as to change the placement angle of the workpiece.

[0057] When the distance-adjustable clamping jaw works, the distance-adjusting mechanism 300 can drive the clamping jaw mechanism 200 to move along the rack 100, so that the distance between adjacent clamping jaw mechanisms 200 changes to adapt to the distance requirement between adjacent workpieces in different stations. When the clamping jaw mechanism 200 is driven by the distance-adjusting mechanism 300 to move, the reversing assembly 400 can drive the clamping jaw mechanism 200 to rotate, so that the clamping jaw mechanism 200 rotates to the required angle, so that the workpiece clamped by the clamping jaw mechanism 200 also rotates to the appropriate angle. In the process of clamping multiple workpieces and transporting the workpieces from the previous station to the next station, the clamping jaw mechanism 200 can directly adjust the distance between adjacent workpieces and the placement angle of the workpiece according to the processing requirement of the next station. Compared with the existing distance-adjustable clamping jaw structure, the workpiece does not need to be placed on a special reversing device for reversing, which can effectively improve the transportation efficiency of the workpiece and thus assist in improving the processing efficiency of the workpiece.

[0058] In some embodiments of the present application, the distance-adjusting mechanism 300 includes a driving member 310 and at least one connecting rod 320 group.

[0059] The driving member 310 is arranged on the rack 100, the connecting rod 320 group includes at least two connecting rods 320, each connecting rod 320 is connected with a corresponding clamping jaw mechanism 200, the end portions of adjacent two connecting rods 320 are rotationally connected, and the connecting rod 320 adjacent to the driving member 310 is rotationally connected with the output end of the driving member 310. The driving member 310 drives the connecting point of the connecting rod 320 and the driving member 310 to move, so that the connecting rod 320 rotates to adjust the position of the clamping jaw mechanism 200.

[0060] For example, as shown in Figure 1 , the connecting rod 320 group includes two connecting rods 320, one connecting rod 320 is a long connecting rod, and the other connecting rod 320 is a short connecting rod. One end of the long connecting rod 320 is hinged to the output end of the driving member 310, the other end is hinged to the short connecting rod, the middle portion of the long connecting rod is connected with one clamping jaw mechanism 200, and the end of the short connecting rod away from the long connecting rod is connected with another clamping jaw mechanism 200. The driving member 310 can be a gas cylinder or an electric cylinder, which can drive the long connecting rod to move in the Y direction.

[0061] For example, as shown in Figure 1 , Figure 2 and Figure 3 , when the driving member 310 extends, the driving force is transmitted to the clamping jaw mechanism 200 through the long connecting rod and the short connecting rod, and the clamping jaw mechanism 200 moves along the X direction, so that the distance between the adjacent two clamping jaw mechanisms 200 becomes smaller. When the driving member 310 retracts, as shown in Figure 4 , Figure 5 and Figure 6As shown, the distance between two adjacent jaw mechanisms 200 is increased, and by changing the length of the connecting rods 320, different distance changes of the jaw mechanisms 200 can be achieved, so that by cooperation of the driving member 310 and the connecting rods 320, the distance change function of the jaw mechanisms 200 can be achieved.

[0062] In some embodiments of the present application, please refer to Figure 1 and Figure 4 As shown, in order to increase the number of controllable jaw mechanisms 200, one connecting rod 320 group is arranged on both sides of the driving member 310, and the driving member 310 can drive the two connecting rod 320 groups to move in opposite directions.

[0063] In addition, in order to further increase the number of controllable jaw mechanisms 200, two adapter rods can also be added, which are arranged on both sides of the driving member 310 and connected with the output end of the driving member 310. Each adapter rod can be hinged with the long connecting rods of multiple connecting rod groups, so that the linkage control of multiple jaw mechanisms 200 can be achieved.

[0064] It can be understood that the number of jaw mechanisms 200 and connecting rod 320 groups can be mainly determined according to the volume and handling requirements of the workpiece to be clamped.

[0065] For example, for a battery with a larger volume, the number of batteries handled at a time can be appropriately reduced to reduce the pressure of the distance change jaw structure and adapt to the installation space requirements. For a battery with a smaller volume, the number of jaw mechanisms 200 and connecting rod 320 groups can be appropriately increased to improve the handling efficiency.

[0066] In addition, the number of driving members 310 can also be increased to increase the number of workpieces that can be handled at a time. The above examples are only illustrative and not limiting.

[0067] In some embodiments of the present application, please refer to Figure 1 As shown, the reversing assembly 400 includes a first adjusting component 410 and a second adjusting component 420.

[0068] The first adjusting component 410 is connected with the rack 100, and the second adjusting component 420 is connected with the jaw mechanism 200. When the jaw mechanism 200 is driven to move by the distance adjusting assembly, the second adjusting component 420 is driven by the jaw mechanism 200 to cooperate with the first adjusting component 410 to push part of the jaw mechanism 200 to rotate.

[0069] Exemplarily, the first adjusting component 410 can be a traction rope, and the second adjusting component 420 can be a rotating disc, which is fixedly connected with the component of the clamping jaw mechanism 200 for clamping the workpiece. One end of the traction rope is fixed on the rack 100, and the other end is connected with the rotating disc. When the clamping jaw mechanism 200 is driven to move by the distance adjusting assembly, the traction rope is gradually tightened along with the distance between the clamping jaw mechanism 200 and the connection point of the traction rope with the rack 100, and then pulls the rotating disc to rotate, so as to rotate part of the clamping jaw mechanism 200.

[0070] In some embodiments of the present application, referring to FIGS. 1, 2 and 3, the clamping jaw mechanism 200 includes a clamping piece 220 and a guide piece 210, which are rotationally connected through a connecting piece 230. Figure 1 and Figure 2 The clamping jaw mechanism 200 includes a clamping piece 220 and a guide piece 210, which are rotationally connected through a connecting piece 230.

[0071] The guide piece 210 is slidingly connected with the rack 100, and the guide piece 210 or the connecting piece 230 is connected with the distance adjusting mechanism 300. The second adjusting component 420 is arranged on the guide piece 210, and the second adjusting component 420 drives the clamping piece 220 to rotate relative to the guide piece 210. The clamping piece 220 is used for clamping the workpiece.

[0072] It can be understood that the clamping piece 220 can be a pneumatic clamping jaw or other common clamping jaw structure, as long as it can clamp the workpiece and move the workpiece, which is not limited in the present embodiment.

[0073] Exemplarily, the connecting piece 230 is a connecting shaft, which is rotationally connected with the guide piece 210. The guide piece 210 and the clamping piece 220 are connected through the connecting shaft. The connecting shaft and the clamping piece 220 can be connected through a key or other ways, so that the clamping piece 220 can rotate with the rotating shaft.

[0074] The connecting piece 230 can also be other common structures, as long as it can be connected with the guide piece 210 through the connecting piece 230, and then connected with the distance adjusting mechanism 300 through the guide piece 210, so that the distance adjusting mechanism 300 drives the clamping jaw mechanism 200 to move along the X direction without affecting the rotation of the clamping piece 220, which is not limited in the present embodiment.

[0075] It can be understood that the clamping piece 220 and the guide piece 210 can also be connected through other common ways, as long as the clamping piece 220 can be driven to rotate by the second adjusting component 420 and the first adjusting component 410, which is not limited in the present embodiment.

[0076] Further, the guide piece 210 includes a first guide plate 211, a second guide plate 212 and at least one connecting plate.

[0077] The connecting plate is connected with the first guide plate 211 and the second guide plate 212 respectively, and the first guide plate 211 and the second guide plate 212 are arranged on opposite surfaces of the rack 100.

[0078] The clamping piece 220 is rotationally connected with at least one of the first guide plate 211 and the second guide plate 212, and the second adjusting component 420 is located between the first guide plate 211 and the rack 100 or between the second guide plate 212 and the rack 100, and the first adjusting component 410 and the second adjusting component 420 are located on the same side of the rack 100.

[0079] Exemplarily, the rack 100 can include a support component and a mounting plate, the support component is used for supporting the mounting plate, and the first guide plate 211 and the second guide plate 212 are arranged on opposite sides of the mounting plate.

[0080] The connecting plate can be provided with one or more, as long as it can effectively connect the first guide plate 211 and the second guide plate 212, so that the first guide plate 211 and the second guide plate 212 are respectively in contact with the opposite sides of the mounting plate, to effectively support the clamping piece 220.

[0081] Exemplarily, as shown in Figure 1 , Figure 2 and Figure 3 , the connecting plate is provided with two, which are respectively connected with both ends of the first guide plate 211 and the second guide plate 212, forming a structure similar to a rectangular frame, and the mounting plate is inserted in the rectangular frame, which can be effectively supported by the mounting plate and can limit the movement direction of the guide piece 210.

[0082] At this time, the guide piece 210 and the clamping piece 220 can be connected through a connecting shaft, the first guide plate 211 is located on the side of the mounting plate close to the clamping piece 220, the second guide plate 212 is located on the side of the mounting plate away from the clamping piece 220, the clamping piece 220 and the distance adjusting mechanism 300 are respectively located on both sides of the mounting plate, the connecting shaft penetrates the first guide plate 211 and the second guide plate 212, one end of the connecting shaft is connected with the clamping piece 220, and the other end is rotationally connected with the distance adjusting mechanism 300.

[0083] The connecting shaft and the first guide plate 211 and the second guide plate 212 can be connected through a bearing, or the inner diameter of the hole on the first guide plate 211 for the connecting shaft to pass through is slightly larger than the outer diameter of the connecting shaft.

[0084] Meanwhile, in use, the connecting shaft 230 is coaxial with the connecting position of the distance adjusting mechanism 300 and the clamping jaw mechanism 200, so that the connecting shaft 230 can drive the clamping member 220 to rotate under the drive of the second adjusting component 420 and the first adjusting component 410, and can drive the clamping member 220 and the guide member 210 to slide along the rack 100 synchronously under the drive of the adjusting mechanism 300.

[0085] Alternatively, the connecting shaft can also only pass through the first guide plate 211 and be rotationally connected with the first guide plate 211 through a bearing or the like, without being connected with the second guide plate 212, in which case, the distance adjusting mechanism 300 is directly rotationally connected with the second guide plate 212.

[0086] Exemplarily, the second adjusting component 420 is arranged between the second guide plate 212 and the mounting plate, i.e., the second adjusting component 420 is located on the side of the mounting plate close to the second guide plate 212, and the second adjusting component 420 can be shielded by the mounting plate and the second guide plate 212, thereby achieving better protection for the second adjusting component 420, and the first adjusting component 410 is also arranged on the side of the mounting plate close to the second guide plate 212 to cooperate with the second adjusting component 420.

[0087] It can be understood that the second adjusting component 420 can also be located between the first guide plate 211 and the mounting plate, in which case, the first adjusting component 410 is also located on the side of the mounting plate close to the first guide plate 211, which is not limited in the embodiment.

[0088] In some embodiments of the present application, please refer to Figure 1 As shown in the figure, the rack 100 is provided with a guide groove 120, and the clamping jaw mechanism 200 moves along the guide groove 120.

[0089] Specifically, the guide groove 120 extending along the X direction can be arranged on the mounting plate, and the connecting shaft is inserted into the guide groove 120. When the distance adjusting mechanism 300 drives the clamping jaw mechanism 200 to move, the connecting shaft can reciprocate along the guide groove 120, on the one hand, the guide groove 120 can avoid the interference between the mounting plate and the clamping jaw mechanism 200, and on the other hand, the guide groove 120 can also assist in limiting the moving track of the clamping jaw mechanism 200 to avoid the deflection of the clamping jaw mechanism 200.

[0090] Further, in order to further limit the moving direction of the guide member 210, please refer to Figure 2 and Figure 5As shown, the rack 100 is provided with at least one first connecting part 110, which is in the same extension direction as the guide slot 120. The first guide plate 211 and the second guide plate 212 are provided with a second connecting part, which cooperates with the first connecting part 110 to limit the moving direction of the guide 210.

[0091] Exemplarily, the first connecting part 110 is a guide rail, which is arranged on the side of the mounting plate close to the clamping piece 220, and the second connecting part is a sliding block, which is arranged on the side of the first guide plate 211 close to the mounting plate, and the sliding block is engaged on the guide rail, so that the first guide plate 211 can only move along the guide rail, thereby preventing the guide 210 from being deflected.

[0092] Exemplarily, the first connecting part 110 includes two guide rails arranged on opposite sides of the mounting plate, and the first guide plate 211 and the second guide plate 212 are both provided with a sliding block cooperating with the guide rail.

[0093] It can be understood that the first connecting part 110 can also be a groove or other structure, and the second connecting part can only cooperate with the first connecting part 110 to limit the moving direction of the guide 210, which is not limited in the embodiment.

[0094] In some embodiments of the present application, please refer to Figure 1 and Figure 4 As shown, the connecting piece 230 is provided with a transmission gear 240. The second adjusting part 420 is provided with a plurality of transmission teeth 424 for engaging with the transmission gear 240.

[0095] Exemplarily, the second adjusting part 420 can include a transmission piece 421, and the transmission teeth 424 are arranged on the transmission piece 421. The transmission piece 421 is driven by the guide 210 to move towards the corresponding first adjusting part 410 and abut against the corresponding first adjusting part 410. When the first adjusting part 410 abuts against the corresponding transmission piece 421, the first adjusting part 410 drives the transmission piece 421 to move, so as to drive the clamping piece 220 to rotate through the transmission gear 240 and the transmission teeth 424.

[0096] Specifically, the transmission gear 240 is fixedly connected with the connecting piece 230, and the clamping piece 220 is fixedly connected with the connecting piece 230, so that the clamping piece 220 can rotate synchronously with the transmission gear 240 when the transmission gear 240 rotates, for example, the transmission gear 240 is connected with the connecting shaft by a key, or connected by other common ways.

[0097] The transmission gear 240 can be covered with teeth on the outer ring, or only partially have teeth, as long as it can cooperate with the transmission teeth 424 to adjust the angle of the clamping piece 220 within a certain range.

[0098] Exemplarily, please refer toFigure 1 and Figure 4 As shown, the transmission component 421 can be a rod, with multiple transmission teeth 424 arranged sequentially along the Y direction on the side adjacent to the transmission gear 240. The transmission component 421 and the second guide plate 212 can be connected by a structure of a sliding groove and a slider 426.

[0099] For example, a groove extending along the Y direction is provided on the side of the second guide plate 212 near the transmission member 421. A slider 426 is provided on the transmission member 421. The slider 426 is inserted into the groove and can slide along the groove. When the transmission member 421 abuts against the first adjustment part and moves along the X direction, the slider 426 slides along the groove, thereby pushing the transmission member 421 to move in the Y direction, causing the transmission gear 424 to drive the transmission gear 240 to rotate, thereby changing the angle of the clamping member 220.

[0100] In some embodiments of the application, the first adjusting component 410 is an adjusting block with an inclined surface, and the second adjusting component 420 abuts against the inclined surface and moves along the inclined surface to drive the partial gripper mechanism 200 to rotate.

[0101] like Figure 1 As shown, the first adjusting component 410 has an inclined surface facing the transmission component 421. When the adjusting mechanism 300 pushes the gripper mechanism 200 to move along the X direction, the transmission component 421 moves together with the gripper mechanism 200. When the transmission component 421 contacts the inclined surface, as the gripper mechanism 200 continues to move along the X direction, the transmission component 421 is pushed by the inclined surface and moves relative to the second guide plate 212 along the Y direction, thereby pushing the transmission gear 240 and the clamping component 220 to rotate and change their angle.

[0102] Furthermore, a roller 423 can be provided at the end of the transmission component 421 that is in contact with the inclined surface. The roller 423 is rotatably connected to the transmission component 421 and rolls in contact with the inclined surface, thereby effectively reducing the friction generated when the roller 423 contacts and moves relative to the inclined surface, thereby reducing the resistance to movement and rotation of the gripper mechanism 200.

[0103] For some embodiments of this application, please refer to Figure 1 and Figure 4 As shown, the second adjusting component 420 is provided with an elastic element 425. The elastic element 425 applies force to the first adjusting component 410 through the second adjusting component 420 so that the second adjusting component 420 and the first adjusting component 410 remain in contact.

[0104] Among them, the elastic element 425 can be a spring or a sheet, etc., which can accumulate elastic potential energy when it is deformed. When the external force that causes the deformation disappears or becomes smaller, it can automatically release the accumulated potential energy to restore the deformed structure. This embodiment does not limit it.

[0105] For example, the elastic member 425 is a spring, and the spring and the roller 423 are arranged at two ends of the transmission member 421 respectively. The spring can be connected with the second guide plate 212 through the limiting seat 500.

[0106] For example, the transmission member 421 is a transmission rod, one end of the spring is connected with the second transmission rod away from the roller 423, and the other end is connected with the limiting seat 500.

[0107] As shown in Figure 4 , when the distance between the jaw mechanisms 200 is increased by the distance adjusting mechanism 300 driving the jaw mechanisms 200 to move, each transmission member 421 is gradually moved to the corresponding first adjusting part 410, and the roller 423 is gradually contacted with the inclined surface. At this time, the inclined surface pushes the roller 423 to move along the inclined surface, so that the transmission member 421 moves along the Y direction, the elastic member 425 accumulates elastic potential energy, and pushes the transmission gear 240 and the clamping part to rotate. When the jaw mechanisms 200 move to the required position, the clamping part 220 is rotated to the appropriate angle. At this time, the jaw mechanisms 200 stay at the position, so that the clamping part can place the workpiece on the corresponding machining station at the appropriate angle and the appropriate distance, or clamp the part on the corresponding machining station.

[0108] After the above action is completed, the jaw mechanisms 200 return to clamp or place the workpiece on the last machining station. At this time, as shown in Figure 1 , the distance adjusting mechanism 300 drives the jaw mechanisms 200 to move back, the roller 423 returns along the inclined surface, the elastic member 425 releases the accumulated elastic potential energy, and pushes the transmission member 421 to move reversely, and always keeps contact with the inclined surface. After the transmission member 421 moves a certain distance along the X direction with the jaw mechanisms 200, the roller 423 is out of contact with the inclined surface. At this time, under the driving of the elastic member 425, the transmission member 421 also returns to the original position, and pushes the transmission gear 240 and the clamping part 220 to return to the initial angle. After the distance between the adjacent jaw mechanisms 200 of the distance adjusting mechanism 300 returns to the initial value, the workpiece can be clamped or placed again from the station, and the cycle is repeated.

[0109] In the use process, in order to avoid the interference between the first adjusting part 410 and the second adjusting part 420 of different reversing assemblies 400, the distance between each first adjusting part 410 and the guide groove 120 can be gradually reduced along the direction from the middle of the rack 100 to the edge of the rack 100. Correspondingly, the setting position of each second adjusting part 420 is adjusted correspondingly to cooperate with the corresponding first adjusting part 410.

[0110] As shown in Figure 1 and Figure 4As shown, when two clamping jaw mechanisms 200 are arranged on both sides of the driving member 310, the distance between the first adjusting member 410 of the reversing assembly 400 and the guide groove 120 is farther when the clamping jaw mechanism 200 is closer to the middle of the mounting plate or the driving member 310.

[0111] It can be understood that for each second adjusting member 420, when the roller 423 moves along the inclined surface to the position where the first adjusting member 410 is farthest away from the guide groove 120, the spring is in a free state and no longer drives the transmission member 421 to continue moving in that direction, so that the distance between the adjacent clamping jaw mechanisms 200 becomes smaller, and when the first adjusting member 410 of the other reversing assembly 400 is out of contact with the second adjusting member 420, the elastic member 425 drives the clamping part to rotate to the initial angle, and when it passes through the second adjusting member 420 of the reversing assembly 400 adjacent to the driving member 310, at most the roller 423 is in contact with the surface of the first adjusting member 410, and will not be pushed by the first adjusting member 410, so that the clamping jaw mechanism 200 will not rotate again, avoiding mutual interference between the first adjusting member 410 and the second adjusting member 420 of different reversing assemblies 400.

[0112] Of course, when the clamping jaw mechanisms 200 are arranged on both sides of the driving member 310 and the clamping jaw mechanisms 200 on both sides move in opposite directions under the drive of the driving member 310, the arrangement positions of the first adjusting members 410 on both sides of the driving member 310 can be rotationally symmetrical, as shown in Figure 1 As shown, on the left side of the driving member 310, the first adjusting member 410 is located below the guide groove 120, and on the right side of the driving member 310, the first adjusting member 410 is located above the guide groove 120, so that the rotation angles of the clamping members 220 of the clamping jaw mechanisms 200 on both sides of the driving member 310 remain consistent.

[0113] In general, in use, the driving member 310 serves as a power source, and the guide part and the clamping part are driven to move along the X direction through the connecting rod 320, as shown in Figure 4As shown, when the transmission member 421 does not move to the position corresponding to the first adjusting component 410, the spring is in a relaxed state, the transmission member 421 does not move, as the clamping jaw mechanism 200 approaches the corresponding first adjusting component 410, the roller 423 will be in contact with the inclined surface and be pushed by the inclined surface to move along the Y direction, at this time the spring will be compressed in the Y direction, and the transmission gear 240 and the clamping piece 220 will be pushed to rotate, until the roller 423 moves to the position where the first adjusting component 410 is closest to the guide groove 120, the clamping piece 220 rotates to a preset angle, and the clamping jaw mechanism 200 completes the rotating action, at this time, the different pitch requirements of the clamping jaw mechanism 200 can be adapted by extending the position of the second adjusting component 420 which is not inclined, so that the clamping piece 220 always maintains a preset angle when the clamping jaw mechanism 200 moves to a preset position, and all clamping pieces 220 can maintain the same angle.

[0114] When it is required to reduce the distance between the clamping jaw mechanisms 200, the guide member 210 is reversely moved by the driving member 310, at this time the roller 423 reversely moves along the first adjusting component 410, the spring gradually recovers the deformation, the transmission gear 240 and the clamping piece 220 are reversely rotated, when the roller 423 completely passes through the area where the first adjusting component 410 is located, the spring recovers to the relaxed state, the clamping piece 220 recovers to the initial angle, and when the guide member 210 returns to the initial position, the entire clamping jaw mechanism 200 recovers to the initial state.

[0115] Thus, the rotation and the pitch change of the entire clamping jaw mechanism 200 can be realized only by one driving member 310, the overall structure is simple, the occupied area is small, and the cost is low.

[0116] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0117] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is indicated only by the appended claims.

Claims

1. A variable distance jaw structure, characterized by, The utility model relates to a kind of machine tool, including: Rack (100); At least two jaw mechanisms (200) are slidably connected with the rack (100), and are sequentially arranged at intervals; Distance adjusting mechanism (300) is connected with the jaw mechanism (200), and the distance adjusting mechanism (300) is configured to drive the jaw mechanism (200) to move to adjust the distance between adjacent two jaw mechanisms (200); At least two reversing assemblies (400) are arranged one by one with the jaw mechanism (200), and the reversing assembly (400) is configured to drive part of the jaw mechanism (200) to rotate under the driving of the jaw mechanism (200) when the jaw mechanism (200) moves.

2. The variable distance jaw structure of claim 1, wherein The reversing assembly (400) includes: First adjusting component (410) is connected with the rack (100); Second adjusting component (420) is connected with the jaw mechanism (200), and the second adjusting component (420) is configured to cooperate with the first adjusting component (410) under the driving of the jaw mechanism (200) to drive part of the jaw mechanism (200) to rotate.

3. The variable distance jaw structure of claim 2, wherein The jaw mechanism (200) includes a clamping piece (220) and a guide piece (210) rotatably connected with the clamping piece (220), the guide piece (210) is slidably connected with the rack (100), and the guide piece (210) or the clamping piece (220) is connected with the distance adjusting mechanism (300) through a connecting piece (230); The second adjusting component (420) is arranged on the guide piece (210), and the second adjusting component (420) drives the clamping piece (220) to rotate relative to the guide piece (210), and the clamping piece (220) is used for clamping workpiece.

4. The variable distance jaw structure of claim 3, wherein The connecting piece (230) is provided with a transmission gear (240); The second adjusting component (420) is provided with a plurality of transmission teeth (424) for engaging with the transmission gear; The second adjusting component (420) is configured to move towards the first adjusting component (410) under the driving of the guide piece (210) to abut against the corresponding first adjusting component (410); The first adjusting component (410) is configured to push the second adjusting component (420) to move when abutting against the corresponding second adjusting component (420) to drive the clamping piece (220) to rotate through the transmission gear (240) and the second adjusting component (420).

5. The variable distance jaw structure of claim 2, wherein The first adjusting component (410) is provided with an inclined surface, the second adjusting component (420) abuts against the inclined surface and moves along the inclined surface to drive part of the jaw mechanism (200) to rotate.

6. The variable distance jaw structure of claim 5, wherein The second adjusting component (420) is provided with a roller (423), and the roller (423) is in rolling contact with the inclined surface.

7. The variable distance jaw structure of claim 5, wherein The second adjusting component (420) is provided with an elastic member (425), which applies force to the first adjusting component (410) through the second adjusting component (420) to keep the second adjusting component (420) in contact with the first adjusting component (410).

8. The variable distance jaw structure of claim 2, wherein, The rack (100) is provided with a guide groove (120), and the clamping jaw mechanism (200) moves along the guide groove (120).

9. The variable distance jaw structure of claim 8, wherein, The distance between each first adjusting component (410) and the guide groove (120) gradually decreases from the middle of the rack (100) to the edge of the rack (100).

10. The variable distance jaw structure of claim 3, wherein The guide member (210) comprises a first guide plate (211), a second guide plate (212), and at least one connecting plate connected to the first guide plate (211) and the second guide plate (212) respectively, and the first guide plate (211) and the second guide plate (212) are arranged on opposite surfaces of the rack (100). The clamping member (220) is rotationally connected to at least one of the first guide plate (211) and the second guide plate (212), the second adjusting component (420) is located between the first guide plate (211) and the rack (100), or between the second guide plate (212) and the rack (100), and the first adjusting component (410) and the second adjusting component (420) are located on the same side of the rack (100).

11. The variable distance jaw structure of claim 10, wherein, The rack (100) is provided with at least one first connecting portion (110). At least one of the first guide plate (211) and the second guide plate (212) is provided with a second connecting portion, which cooperates with the first connecting portion (110) to limit the movement direction of the guide member (210).

12. The variable distance jaw structure according to any one of claims 1-11, wherein, The distance adjusting mechanism (300) comprises: A driving member (310) provided on the rack; A connecting rod group comprising at least two connecting rods (320), each connecting rod (320) being connected to the clamping jaw mechanism (200), the end portions of adjacent two connecting rods (320) being rotationally connected, and the connecting rod (320) adjacent to the driving member (310) being rotationally connected to the output end of the driving member (310); The driving member (310) is configured to drive the connecting point of the connecting rod (320) and the driving member (310) to move, so that the connecting rod (320) rotates to adjust the position of the clamping jaw mechanism (200).

13. The variable distance jaw structure of claim 12, wherein, The driving member (310) is provided with one connecting rod group on each side, and the driving member (310) is configured to drive the two connecting rod groups to move in opposite directions.

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