A positioning jig

Abstract

The present application relates to a kind of positioning fixture, including carrier, positioning component and moving component;Carrier is equipped with positioning slot;Positioning component includes positioning piece and the elastic drive module connected with positioning piece;Positioning piece is under the cooperation of elastic drive module and moving component, can reciprocate between first position (the projection of positioning piece on carrier in first direction separates from the position of the bottom surface of positioning slot) and second position (the projection of positioning piece on carrier in first direction cooperates with the bottom surface of positioning slot and the position of the end surface of workpiece being clamped) relative to carrier.The positioning piece in the positioning fixture of the present application cooperates with the bottom surface of positioning slot and the end surface of workpiece being clamped, workpiece does not need to provide positioning piece effective cooperation clamping surface, there is no special restriction to the thickness of workpiece, and the versatility and adaptability of positioning fixture are stronger.Positioning piece is completely separated from workpiece and positioning slot when not clamping work, and there is no obstruction for the feeding and discharging of workpiece, convenient to operate, suitable for conditions such as automatic feeding and discharging, and high clamping efficiency.

Description

Technical Field

[0001] This invention relates to the field of workpiece positioning device technology, and in particular to a positioning fixture. Background Technology

[0002] Currently, there is a positioning fixture that can simultaneously position multiple workpieces. It includes a carrier with multiple positioning holes for positioning workpieces, and positioning elements that cooperate to clamp the sides of the workpieces on opposite sides of each positioning hole. However, this positioning fixture is only suitable for workpieces with a certain thickness that is sufficient to allow the positioning elements to obtain an effective clamping mating surface. For thinner workpieces, its adaptability is poor, and it may even be unable to achieve stable clamping. Summary of the Invention

[0003] The purpose of this invention is to provide a positioning fixture that has no special limitations on workpiece thickness, is highly versatile, and has high positioning accuracy.

[0004] To achieve the above-mentioned objectives, the present invention provides a positioning fixture, comprising:

[0005] The carrier is provided with a positioning groove for positioning the workpiece to be positioned, and the bottom surface of the positioning groove positions the workpiece along a first direction.

[0006] A positioning assembly includes a positioning element and an elastic drive module connected to the positioning element; the elastic drive module is disposed on the carrier, and the positioning element is capable of reciprocating between a first position and a second position relative to the carrier; in the first position, the projection of the positioning element on the carrier along a first direction is separated from the positioning groove; in the second position, the positioning element engages with the bottom surface of the positioning groove along the first direction to clamp the workpiece; the elastic drive module is used to apply an elastic pushing force to the positioning element to move from the first position toward the second position and clamp the workpiece.

[0007] A movable component is slidably disposed on the carrier and is connected to the elastic drive module for applying a driving force to the elastic drive module in the opposite direction to the elastic driving force, so as to drive the positioning member to return from the second position to the first position.

[0008] In one embodiment of the present invention, the positioning slot is symmetrically provided with the positioning components on both sides along a second direction perpendicular to the first direction, and the moving component is simultaneously connected to the elastic drive module in the positioning components on both sides.

[0009] In one embodiment of the present invention, the positioning member includes positioning portions protruding in the second direction and the third direction; the first direction, the second direction, and the third direction are perpendicular to each other;

[0010] The positioning part and the workpiece within its corresponding clamping range are configured to conform to the outer contour of the workpiece in the second direction and the third direction.

[0011] In one embodiment of the present invention, the clamping surface of the positioning part is configured to conform to the outer contour of the workpiece within its corresponding clamping range in the first direction.

[0012] The workpiece has a convex-concave structure on the side surface that contacts the positioning part, and the convex-concave structure has an inner side facing the positioning part. The clamping surface of the positioning part is provided with a mating surface in the shape of the inner side.

[0013] In one embodiment of the present invention, the carrier is provided with a plurality of positioning slots arranged along the third direction, and each positioning slot is symmetrically provided with positioning components on both sides along the second direction; the moving component is simultaneously connected to the elastic drive module in each positioning component.

[0014] In one embodiment of the present invention, the elastic drive module includes a first sliding member slidably disposed on the carrier along a second direction perpendicular to the first direction and capable of sliding along the second direction under the action of a first elastic member, a second sliding member slidably disposed on the first sliding member along the first direction and capable of sliding along the first direction under the action of a second elastic member, and the positioning member is disposed on the second sliding member;

[0015] The moving component includes a first moving member and a second moving member; the first moving member is tractively connected to the first sliding member and is used to apply a driving force to the first sliding member in the opposite direction to the driving force of the first elastic member; the second moving member is tractively connected to the second sliding member and is used to apply a driving force to the second sliding member in the opposite direction to the driving force of the second elastic member.

[0016] In one embodiment of the present invention, the moving component further includes a first driving device for driving the first moving member and the second moving member to reciprocate along a third direction perpendicular to the first direction and the second direction; the first moving member and the second moving member are fixedly connected.

[0017] At least one of the first moving member and the first sliding member is provided with an inclined surface, and the other abuts against the inclined surface for transmission; at least one of the second moving member and the second sliding member is provided with an inclined surface, and the other abuts against the inclined surface for transmission.

[0018] In one embodiment of the present invention, the transmission contact portion of both the first moving member and the first sliding member is provided with an inclined surface of a planar structure.

[0019] Both the second moving member and the second sliding member have inclined surfaces with arc-shaped structures at their transmission contact points.

[0020] In one embodiment of the present invention, the inclined surface of the first moving member and the inclined surface of the second moving member are staggered in the moving direction of the first moving member and the second moving member, and the moving direction is consistent with the third direction X.

[0021] In one embodiment of the present invention, the positioning groove has a sidewall that is angularly connected to the bottom surface, and the sidewall has a positioning profile that conforms to the peripheral structure of the workpiece for positioning the workpiece in the circumferential direction.

[0022] In one embodiment of the present invention, a limiting component is further included, which is slidably connected to the moving component and is used to limit the moving position of the moving component.

[0023] The limiting component includes a limiting member, and the moving component is provided with a limiting groove extending along its moving direction and having opposite sidewalls in the extending direction. The limiting member is slidably connected to the limiting groove and is limited by abutting against the sidewall.

[0024] In one embodiment of the present invention, the limiting component further includes a second driving device, which is used to drive the limiting member to extend into the limiting groove or drive the limiting member to disengage from the limiting groove.

[0025] Compared with the prior art, the present invention has the following beneficial effects: According to some embodiments of the present invention, a positioning fixture includes a carrier, a positioning component, and a moving component; the carrier is provided with a positioning groove; the positioning component includes a positioning member and an elastic drive module connected to the positioning member; the positioning member, under the action of the elastic drive module and the moving component, can reciprocate between a first position and a second position relative to the carrier, the first position being the position where the projection of the positioning member on the carrier along the first direction separates from the positioning groove, and the second position being the position where the positioning member along the first direction engages with the bottom surface of the positioning groove to clamp the workpiece.

[0026] The positioning fixture uses a positioning element that engages with the bottom surface of the positioning groove to clamp the two end faces of the workpiece. The workpiece does not need to provide an effective clamping surface for the positioning element, and there are no special restrictions on the thickness of the workpiece. The positioning fixture has greater versatility and adaptability.

[0027] The positioning components, the bottom surface of the positioning groove, and the groove wall together define the positioning space of the workpiece from the two end faces and the circumferential side of the workpiece, making the positioning stability of the workpiece on the positioning fixture stronger.

[0028] When the active clamping force is applied by the positioning component, the clamping force is easy to control. Compared with fixtures that use multiple active clamping components, the probability of workpiece deformation or damage is lower.

[0029] In addition, the positioning element presses the workpiece into the positioning groove from the opening of the positioning groove, which makes the positioning structure (including size, shape, etc.) of the positioning element more flexible in terms of setting or adjustment.

[0030] In addition, when not clamping, the positioning component is completely detached from the workpiece and the positioning groove. As a result, the workpiece can be placed or removed directly along the opposite side of the positioning groove without any obstructions. This makes it easy to operate and suitable for conditions such as automated loading and unloading, with high clamping efficiency. Attached Figure Description

[0031] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0032] Figure 1 This is a structural diagram of the positioning fixture (open state);

[0033] Figure 2 yes Figure 1 Top view;

[0034] Figure 3 yes Figure 1 A bottom view;

[0035] Figure 4 This is a structural diagram of the positioning fixture (clamping state);

[0036] Figure 5 yes Figure 4 Top view;

[0037] Figure 6 yes Figure 4 A bottom view;

[0038] Figure 7 This is a schematic diagram of the cooperative structure of the positioning component and the moving component (open state);

[0039] Figure 8 yes Figure 7 Top view;

[0040] Figure 9 yes Figure 7 Side view;

[0041] Figure 10 This is a schematic diagram of the cooperation structure between the positioning component and the moving component (clamping state).

[0042] Figure 11 yes Figure 10 Top view;

[0043] Figure 12 yes Figure 10 Side view;

[0044] Figure 13 This is a structural schematic diagram of the vehicle;

[0045] Figure 14 yes Figure 13 Top view;

[0046] Figure 15 yes Figure 13 Side view;

[0047] Figure 16 yes Figure 13 A bottom view;

[0048] Figure 17 This is a schematic diagram of the connection between the first and second moving parts;

[0049] Figure 18 yes Figure 17 Top view;

[0050] Figure 19 yes Figure 17 Side view;

[0051] Figure 20 This is a structural schematic diagram of the first moving component;

[0052] Figure 21 yes Figure 20 A bottom view;

[0053] Figure 22 This is a structural schematic diagram of the second moving component;

[0054] Figure 23 yes Figure 22 Top view;

[0055] Figure 24 yes Figure 22 A bottom view;

[0056] Figure 25 This is a schematic diagram of the elastic drive module.

[0057] Figure 26 yes Figure 25 Side view;

[0058] Figure 27 yes Figure 25 Top view;

[0059] Figure 28 This is a structural diagram of the positioning component, the second sliding component, and the second elastic component;

[0060] Figure 29This is a schematic diagram of the second sliding component;

[0061] Figure 30 yes Figure 29 The main view;

[0062] Figure 31 yes Figure 29 Side view;

[0063] Figure 32 It is a bottom view of 29. Detailed Implementation

[0064] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0065] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0066] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0067] The terms "first," "second," etc., used in this disclosure are used to distinguish similar objects and not to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this disclosure can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more.

[0068] Example

[0069] See Figures 1-32This embodiment discloses a positioning fixture, including a carrier 1, a positioning component 2, and a moving component 3.

[0070] The carrier 1 is provided with a positioning groove 11 for positioning the workpiece 6 to be positioned (see Figures 13-14 The bottom surface 111 of the positioning groove 11 positions the workpiece 6 along the first direction Z (see...). Figures 1-2 , Figures 3-4 In some embodiments, such as Figure 1 , Figure 4 As shown, the carrier 1 is placed horizontally, and a positioning groove 11 is formed on the upper surface of the carrier 1. The bottom surface of the positioning groove 11 supports and positions the workpiece 6 in the vertical direction, and cooperates with the positioning member 21 to clamp the upper and lower surfaces of the positioning member 21. It can be understood that the carrier 1 can also be placed at an angle to the horizontal, and the corresponding first direction Z is the direction in which the bottom surface 111 of the positioning groove 11 supports the workpiece 6, which can provide a supporting force to clamp the workpiece 6 in cooperation with the positioning member 21. It can be further understood that the first direction Z can be the normal direction of the bottom surface 111, or it can be a direction at an angle to the normal direction of the bottom surface 111. However, when the workpiece 6 is clamped in the positioning groove 11, the bottom surface 111 of the positioning groove 11 provides the clamping force as one of the clamping members.

[0071] Furthermore, the positioning component 2 includes a positioning element 21 and an elastic drive module 22 connected to the positioning element 21. It is understood that the elastic drive method can provide the positioning element 21 with an elastic clamping force to perform the clamping operation, thus avoiding damage to the workpiece from rigid clamping. Simultaneously, the elastic drive method can better coordinate with the moving component 3 to control the drive path of the positioning element 21, facilitating adjustments to the drive process of the positioning element 21 between the first non-clamping position and the second clamping position.

[0072] like Figures 1-2 , Figures 4-5 As shown, the elastic drive module 22 is disposed on the carrier 1. The carrier 1 serves as both a positioning component providing the positioning groove 11 and a mounting support component for mounting the elastic drive module 22, etc., resulting in a higher degree of integration of the positioning fixture.

[0073] Furthermore, the positioning member 21 is capable of reciprocating between a first position and a second position relative to the carrier 1 (compare). Figure 2 , Figure 5(As shown); when the positioning member 21 is in the first position, the projection of the positioning member 21 on the carrier 1 along the first direction Z is separated from the positioning groove 11 (i.e., it does not cover the positioning groove 11); when the positioning member 21 is in the second position, the positioning member 21 cooperates with the bottom surface 111 of the positioning groove 11 along the first direction Z to clamp the workpiece 6; the elastic drive module 22 is used to apply an elastic pushing force to the positioning member 21 to move from the first position toward the second position and clamp the workpiece 6.

[0074] In this way, during clamping operation, the positioning member 21 moves to the opening position of the positioning groove 11 of the carrier 1, pressing the workpiece 6 along the first direction Z onto the bottom surface 111 of the positioning groove 11. This completes the clamping of the two end faces of the workpiece 6 by the positioning member 21 and the bottom surface 111. The workpiece 6 does not need to contact the positioning member 21 laterally, and the positioning member 21 and the bottom surface 11 of the positioning groove 11 clamp the workpiece 6 from the two end faces. There are no special restrictions on the thickness of the workpiece 6, and the positioning fixture has stronger versatility and adaptability. At the same time, the positioning member 21, the bottom surface 111 of the positioning groove 11, and the groove wall of the positioning groove 11 together define the positioning space of the workpiece 6 from the two end faces and the circumferential side (for example, the bottom surface 111 of the positioning groove 11 and the positioning member 21 restrict the two opposite end faces of the workpiece 6, and the groove wall of the positioning groove 11 restricts the workpiece 6 from the circumferential side). This makes the positioning stability of the workpiece 6 on the positioning fixture stronger. Meanwhile, the active clamping force is applied by the positioning element 21, and the clamping force is easy to control. Compared with fixtures that use multiple active clamping methods, the probability of workpiece 6 being deformed or damaged during clamping is lower. In addition, the positioning element 21 presses and clamps the workpiece 6 along the first direction Z from the opening of the positioning groove 21. This makes the positioning structure of the positioning element 21 more flexible in terms of setting or adjustment. For example, a planar clamping surface or a contoured clamping surface can be selected. Moreover, within the end face range of the workpiece 6, the dimensions of the positioning element 21 in each direction can be arbitrarily set, as long as the positioning element 21 can press the workpiece 6 into the positioning groove 11 and clamp it in cooperation with the bottom surface of the positioning groove 11.

[0075] Furthermore, when the positioning element 21 is not clamping, its projection along the first direction Z on the carrier 1 is separated from the position of the positioning groove 11, that is, it is completely detached from the workpiece 6 and the positioning groove 11. In this way, the workpiece 6 can be placed or removed directly opposite the positioning groove 11 without being blocked by the positioning element 21. It is understandable that if the positioning element 21 only moves away from the positioning groove 11 along the first direction Z to clamp or release the workpiece 6, the gap between the positioning element 21 and the positioning groove 11 can also provide space for the workpiece 6 to be loaded or unloaded. However, this requires the workpiece 6 to be placed from the side between the positioning element 21 and the positioning groove 11. It is necessary to consider avoiding collisions with the positioning element 21. For example, for loading and unloading of multi-station positioning fixtures (for example, multiple positioning grooves 21 and corresponding multiple sets of positioning components are set on the same carrier 1), loading and unloading from the side will cause mutual interference between the stations. Especially in the case of automated loading and unloading, it will affect the work efficiency.

[0076] like Figures 1-12 As shown, the moving component 3 is connected to the elastic drive module 22 and applies a driving force to the elastic drive module 22 in the opposite direction to the elastic driving force, thereby driving the positioning member 21 back from the second position to the first position. The moving component 3 controls the driving of the elastic drive module 22, and thus controls the operation of the positioning member 21.

[0077] In some embodiments, the positioning groove 11 is symmetrically provided with the positioning components 2 on both sides along the second direction Y (perpendicular to the first direction Z) (see Figures 1-2 , Figures 4-5 This ensures that the workpiece 6 is subjected to uniform and symmetrical force in the second direction Y by symmetrically clamping it on both sides, thereby improving the stability of the workpiece 6's positioning. It is understood that the positioning fixture of this invention utilizes the positioning element 21 and the positioning groove for clamping and positioning in the first direction Z. While one set of positioning components 2 is sufficient to satisfy the clamping and positioning fixation of the workpiece 6, setting two sets of positioning components 2 provides a better positioning effect. The moving component 3 is simultaneously connected to the elastic drive module 22 in the positioning components 2 on both sides, ensuring synchronized operation of the positioning components 2 on both sides.

[0078] The positioning member 21 includes a positioning portion 211 protruding along the second direction Y and the third direction X. It is understood that the extension of the positioning portion 211 in both the second direction Y and the third direction X is a designed extension to adapt to the structure of the workpiece 6, such as widening, lengthening, or designing its shape. The design of the dimensions or shapes in the corresponding two directions is targeted, for example, to ensure the positioning stability of the workpiece 6, or to provide clearance space for the positioning fixture to cooperate with other devices in processing. However, it is understood that the structure of the positioning portion 211 may or may not be identical to the structure of the workpiece 6 within the clamping range. For example, one situation does not involve a targeted extension of the positioning component 21. The positioning component 21 has a connecting part connected to its driving (or fixing) mechanism (or component) and a positioning part for positioning the workpiece. The whole consisting of the connecting part and the positioning part is simply a rectangle, square, or rectangular shape. The shape or size of the positioning part is not designed with consideration for the structure, positioning, processing, and other factors of the workpiece 6, and it is not designed from two dimensions (such as two directions, such as the second direction Y and the third direction X).

[0079] The first direction Z, the second direction Y, and the third direction X are all perpendicular to each other.

[0080] In some embodiments, the positioning part 211 and the workpiece 6 within its corresponding clamping range are configured to conform to the outer contours of the workpiece 6 in the first direction Y and the third direction X, so as to adapt to the structure of the workpiece 6 for positioning, resulting in more stable positioning. This design also provides the positioning fixture with machining space for processing the workpiece 6 in conjunction with other devices. In some embodiments, the workpiece 6 can be in the form of a circular sheet or an annular sheet, such as... Figures 1-2 , Figures 3-4 , Figures 7-8 , Figures 10-11 As shown, workpiece 6 is a circular sheet. Positioning member 21 corresponds to the transverse structure of workpiece 6 and extends a certain width in both the second direction Y and the third direction X. It is an arc-shaped positioning part 211 that conforms to the partial annular structure of workpiece 6 (see...). Figure 2 , Figure 5 (As shown in the comparison). In some embodiments, such as Figure 3 , Figure 6 As shown, the carrier 1 is provided with a machining hole 12 that runs through the upper and lower end faces. Other machining devices can extend from the bottom end face of the carrier 1 through the machining hole 12 to the workpiece 6 to perform machining such as welding. They can also directly machine the workpiece 6 from the upper end face of the carrier 1 or extend into the machining hole 12 to machine the workpiece 6. The positioning part 211 of the arc-shaped structure of the positioning member 21 will not interfere with the machining operation of other machining devices and affect the machining process of the workpiece 6.

[0081] In some embodiments, such as Figure 4 , Figure 28 As shown, the clamping surface of the positioning part 211 is contoured to the outer contour of the workpiece 6 in the first direction Z within its corresponding clamping range, ensuring that the positioning part 21 adapts to the surface structure of the workpiece 6 and clamps the workpiece 6, thereby forming multi-directional positioning of the workpiece 6 and further ensuring the positioning accuracy of the positioning part 21 and the workpiece 6.

[0082] In some embodiments, such as Figure 4 , Figure 28 As shown, the workpiece 6 has a convex-concave structure on the side surface that contacts the positioning part 211 (the convex-concave structure can be a protrusion, a depression, or both). Figure 7 The convex-concave structure is annularly raised, and the convex-concave structure has an inner surface 61 facing the center of the workpiece 6. The clamping surface of the positioning part 211 is provided with a mating surface 2111 corresponding to the inner surface 61 to more evenly press the outer edge of the workpiece 6. The inner surface 61 of the workpiece 6 is arc-shaped. In the process of the positioning part 21 elastically pressing the workpiece 6, the mating surface 2111 of the positioning part 21 gradually engages with the inner surface 61 of the workpiece 6. That is, the positioning position of the workpiece 6 can be adjusted by using the pushing action of the arc surface. The conforming structure of the positioning part 211 and the convex-concave structure of the workpiece 6 clamp and fit together, which can ensure that the positioning position of the workpiece 6 in the positioning fixture is the same for each positioning, thereby ensuring that the position of all workpieces 6 is consistent in further processing steps, so as to ensure processing accuracy.

[0083] In some embodiments, such as Figures 1-12 As shown, the carrier 1 has multiple positioning slots 11 arranged along the third direction X, and each positioning slot 11 has positioning components 2 symmetrically arranged on both sides along the first direction Y. The moving component 3 is simultaneously connected to the elastic drive module 22 in each positioning component 2. Therefore, the same positioning fixture can simultaneously clamp multiple workpieces 6, and the moving component 3 can synchronously control the operation of multiple positioning components 2, ensuring the synchronous movement of each positioning component 21 of the positioning fixture. In some embodiments, there are 4 positioning slots 11 and 8 sets of corresponding positioning components 2.

[0084] In some embodiments, such as Figures 25-28The elastic drive module 22 includes a first sliding member 221 that is slidably disposed on the carrier 1 along a second direction Y perpendicular to the first direction Z and is capable of sliding on the carrier 1 along the second direction Y under the action of a first elastic member 223, and a second sliding member 222 that is slidably disposed on the first sliding member 221 along the second direction Y and is capable of sliding on the first sliding member 221 along the first direction Z under the action of a second elastic member 224. The positioning member 21 is disposed on the second sliding member 222. Through the installation and sliding cooperation of the two sets of sliding members and elastic members in different directions, the position change of the positioning member 21 from the first position to the second position is completed. That is, the positioning member 21 is moved along the second direction Y from a position away from the positioning groove 11 (i.e., the position where the projection of the positioning member 21 along the first direction Z on the carrier 1 is separated from the positioning groove 11) to the corresponding position of the positioning groove 11, while ensuring that the positioning member 21 clamps the workpiece 6 along the first direction Z.

[0085] In some embodiments, such as Figure 13 , Figure 15 As shown, the carrier 1 has a first guide channel 14 along the second direction Y, and the first sliding member 221 is disposed within the first guide channel 14. In some embodiments, the positioning component 2 further includes a stop 225 disposed at the end of the first guide channel 14 (see...). Figure 1 , Figure 4 The second elastic member 223 elastically abuts against the first sliding member 221 and the stop block 225 along the second direction Y. In some embodiments, the second sliding member 222 includes a first side portion 2221 and a second side portion 2222, which are connected at their ends and extend along the first direction Z and the second direction Y, respectively (see...). Figures 29-32 The first side portion 2221 is slidably engaged with the first sliding member 221; the positioning member 21 is disposed on the first side portion 2221 and is separated from the second side portion 2222 by the first sliding member 221; the second elastic member 224 elastically abuts against the first sliding member 221 and the second side portion 2222 along the first direction Z (see...). Figures 25-28 In some embodiments, the first sliding member 221 is provided with a mounting hole for mounting the second elastic member 224, one end of the second elastic member 224 is inserted into the mounting hole, and the other end abuts against the second side portion 2222 (see...). Figure 26 ).

[0086] Furthermore, the moving component 3 includes a first moving member 31 and a second moving member 32; the first moving member 31 is convexly connected to the first sliding member 221 and is used to apply a driving force to the first sliding member 221 in the opposite direction to the driving force of the first elastic member 223; the second moving member 32 is convexly connected to the second sliding member 222 and is used to apply a driving force to the second sliding member 222 in the opposite direction to the driving force of the second elastic member 224. By using the first moving member 31 and the second moving member 32 to control the operation of the first sliding member 221 and the second sliding member 222 respectively, it is convenient to control the bidirectional cooperative operation of the positioning member 21 in the first direction Z and the second direction Y.

[0087] In some embodiments, such as Figures 1-12 As shown, the moving component 3 further includes a first driving device 33 for driving the first moving member 31 and the second moving member 32 to reciprocate along a third direction X perpendicular to the first direction Z and the second direction Y; the first moving member 31 and the second moving member 32 are fixedly connected. The first driving device 33 enables bidirectional driving of the first sliding member 221 and the second sliding member 222 by the first moving member 31 and the second moving member 32. The driving structure is simple and can effectively ensure the coordinated control of the first sliding member 221 and the second sliding member 222 by the first moving member 31 and the second moving member 32, thereby ensuring the accuracy and synchronization of the positioning member 21's trajectory along the first direction Z and the second direction Y.

[0088] In some embodiments, such as Figure 1 , Figure 13 As shown, the carrier 1 is provided with a second guide channel 15 communicating with the first guide channel 14, and the second guide channel 15 penetrates the opposite end face of the carrier 1 along the third direction X. The first moving member 31 and the second moving member 32, which are fixedly connected, are slidably disposed within the second guide channel 15. In some embodiments, the first driving device 33 is disposed outside one end face of the carrier 1 along the third direction X and is simultaneously connected to the first moving member 31 and the second moving member 32. In some embodiments, the driving end of the first driving device is detachably connected to the end of the first moving member 31 and / or the second moving member 32 through a T-slot and a T-block (see...). Figures 1-6 , Figures 17-24 ).

[0089] Optionally, the first driving device may be configured as a cylinder, hydraulic cylinder, electric cylinder, or other device capable of linear drive.

[0090] In some embodiments, at least one of the first moving member 31 and the first sliding member 221 is provided with an inclined surface, and the other abuts against the inclined surface for transmission; at least one of the second moving member 32 and the second sliding member 222 is provided with an inclined surface, and the other abuts against the inclined surface for transmission. This inclined surface transmission structure not only facilitates a compact transmission structure between the moving member and the sliding member and ensures smooth transmission, but also enables smooth position switching and stable clamping of the workpiece 6 for the positioning member 21 driven by the moving member and the sliding member. Simultaneously, the inclined surface transmission structure facilitates the linkage or synchronous driving of multiple positioning components using the same moving member / moving assembly (first moving member and second moving member). It is understood that an inclined surface is a driving surface with an angle inclined to the driving direction that enables driving. Optionally, the inclined surface can be set as a plane or an arc surface.

[0091] like Figures 1-12 17- Figure 24 As shown, both the first moving member 31 and the second moving member 32 are elongated structures (extending along the third direction X).

[0092] In some embodiments, the transmission contact portions of both the first moving member 31 and the first sliding member 221 are configured as inclined surfaces of a planar structure. Specifically, for example... Figures 20-21 As shown, the first movable member 31 has two sides corresponding to the width direction (second direction Y), and both sides are recessed inward (second direction Y) along the length direction (third direction X) from its surface (second direction Y). (For example, Figures 20-21 As shown, multiple first recesses 311 are provided (optionally four), and they are symmetrically arranged on two sides of the first moving member 31. The side of the first recess 311 along the third direction X is set as an inclined surface (e.g., Figures 20-21 (As shown, the inclined surface is planar); the first slider 221 is provided with a first protrusion 2111 corresponding to the mating part of the first recess 311, and the surface of the first protrusion 2111 is set as an inclined surface (e.g., Figure 8 , Figure 11 , Figures 25-26 The inclined surface shown is planar.

[0093] In some embodiments, the transmission contact portions of both the second moving member 32 and the second sliding member 222 are configured as inclined surfaces with an arc-shaped structure. Specifically, for example... Figures 22-24 As shown, the second moving member 32 has a second recess 321 recessed on its upper surface corresponding to the thickness direction (first direction Z). Figures 22-23As shown, multiple second recesses 321 are provided, optionally four, and extend along the second direction Y to penetrate the side of the second moving member 32. They are provided on both sides of the first moving member 32 in the width direction (second direction Y) and are symmetrically arranged. The side of the second recess 321 along the third direction X is set as an inclined surface 3211 (e.g., Figure 9 , Figure 12 (Shown as an arc-shaped inclined surface); the second sliding member 222 is provided with a second protrusion 2223 corresponding to the mating part of the second recess 321, and the second protrusion 2223 is provided with an inclined surface 22231 (for example, Figure 12 , Figure 30 (Shown as an inclined surface of an arc structure).

[0094] Therefore, the first moving member 31 and the first sliding member 221 adopt a planar inclined surface transmission to utilize the linear change of the plane to complete the rapid movement of the positioning member 21 along the second direction Y; the second moving member 32 and the second sliding member 222 adopt an arc-shaped inclined surface transmission to utilize the curvature change of the arc to complete the smooth clamping operation of the positioning member 21 along the first direction Z.

[0095] like Figure 19 and Figure 30 As shown, the second recess 321 has an inclined surface on the side away from the first driving device and a first vertical surface on the other side. Similarly, the second protrusion 2223 has an inclined surface on the side away from the first driving device and a second vertical surface on the other side. This allows the second sliding member 222 to be accurately positioned within the second recess 321 by the contact and limiting action of the first and second vertical surfaces when the first driving device retracts. At this time, the positioning part 211 presses down on the workpiece 6. When the first driving device extends, the second sliding member 222 is lifted by the inclined surface, releasing the workpiece 6.

[0096] In some embodiments, such as Figures 7-8 , Figures 10-11 , Figures 17-18 As shown, the first moving member 31 and the second moving member 32 are stacked and fixed along their thickness directions, and the second moving member 32 is located below the first moving member 31 in the first direction X. The width of the second moving member 32 is greater than the width of the first moving member 31 (the dimension along the second direction Y). The upper surface of the second moving member 32, which is correspondingly provided with the second recess 321, and the side surface of the first moving member 31, which is correspondingly provided with the first recess 311, are combined to form a right-angle driving surface, which respectively drives the second sliding member 222 and the first sliding member 221.

[0097] In some embodiments, such as Figures 18-19As shown, the inclined surfaces of the first moving member 31 and the second moving member 32 are staggered in their moving directions. This allows control over the operating sequence of the first sliding member 221 and the second sliding member 22, so that when the positioning member 21 moves from the first position to the second position, it first moves along the second direction Y to partially occupy the area above the positioning groove 1, and then moves along the first direction Z to press against the workpiece; when returning (i.e., when the positioning member 21 moves from the second position to the first position), it first moves along the first direction Z away from the workpiece 6, and then moves from above the positioning groove 11 along the second direction Y to reset to the second position.

[0098] In some embodiments, such as Figure 13 As shown, the positioning groove 11 has a sidewall 112 that is angularly connected to the bottom surface 111. The sidewall 112 has a positioning contour that conforms to the peripheral structure of the workpiece 6, and is used to position the workpiece 6 in the circumferential direction. Thus, the workpiece 4 is initially positioned after being loaded using the sidewall of the positioning groove 11, which facilitates the precise positioning of the subsequent positioning component 21. In particular, for the positioning component 21 with a conforming structure, it can be ensured that the conforming positioning structure of the positioning component 21 is adapted to the structure of the workpiece 6 for positioning.

[0099] In some embodiments, such as Figures 1-6 As shown, the positioning fixture also includes a limiting component 4, which is slidably connected to the moving component 3 and is used to limit the movement position of the moving component 3.

[0100] In some embodiments, such as Figures 1-6 , Figures 22-24 As shown, the limiting component 4 includes a limiting member 41, and the transfer component 3 is provided with a limiting groove 33 extending along its moving direction and having opposing sidewalls 331 in the extending direction. The limiting member 41 is slidably connected to the limiting groove 33 and is limited by abutting against the sidewalls 331. It can be understood that the cooperation of the limiting member 41 and the limiting groove 33 can limit the reciprocating movement of the moving component 3 in two directions, or limit either the outward or return movement of the moving component 3 in a single direction.

[0101] In some embodiments, the limiting component further includes a second driving device for driving the limiting member to extend into the limiting groove or driving the limiting member to disengage from the limiting groove.

[0102] In some embodiments, the limiting component 4 may also include a second driving device 42 and an elastic reset member (not shown in the figure). The second driving device 42 is used to drive the limiting member 41 to extend into the limiting groove 33, and the elastic reset member is used to drive the limiting member 41 to disengage from the limiting groove 33.

[0103] In some embodiments, the limiting member 41 is disposed on the carrier 1. Specifically, the carrier 1 is provided with a through guide channel 13 along the second direction Y, and the limiting member 41 slides through the guide channel 13. Further, the second driving device 42 is disposed on the outside of the carrier 1 and connected to one end of the limiting member 41, driving the limiting member 41 to extend into the limiting groove 33 along the guide channel 13.

[0104] In some embodiments, such as Figure 3 , Figure 6 , Figure 9 , Figure 12 , Figure 22 , Figure 24 As shown, the second moving member 32 has a downwardly protruding stepped surface 322 on its bottom surface along the first direction Z. When the first moving member 31 and the second moving member 32 move along the third direction X, the moving position of the first moving member 31 and the second moving member 32 is limited by the contact between the stepped surface 322 and the carrier 1.

[0105] Optionally, the second drive device may be a cylinder, a hydraulic cylinder, an electric actuator, etc. Optionally, the elastic reset element may be a spring.

[0106] All the above-mentioned optional technical solutions can be combined in any way to form optional embodiments of the present invention. That is, any number of embodiments can be combined to meet the needs of different application scenarios. All of these are within the protection scope of this application and will not be described in detail here.

[0107] It should be noted that the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A positioning fixture, characterized in that, include: The carrier (1) is provided with a positioning groove (11) for positioning the workpiece (6) to be positioned, and the bottom surface (111) of the positioning groove (11) positions the workpiece (6) along the first direction (Z). The positioning component (2) includes a positioning element (21) and an elastic drive module (22) connected to the positioning element (21); the elastic drive module (22) is disposed on the carrier (1), and the positioning element (21) is capable of reciprocating between a first position and a second position relative to the carrier (1); in the first position, the projection of the positioning element (21) along the first direction (Z) on the carrier (1) is separated from the positioning groove (11); in the second position, the positioning element (21) along the first direction (Z) cooperates with the bottom surface (111) of the positioning groove (11) to clamp the workpiece (6); the elastic drive module (22) is used to apply an elastic pushing force to the positioning element (21) to move from the first position toward the second position and clamp the workpiece (6); The moving component (3) is slidably disposed on the carrier (1) and is connected to the elastic drive module (22) for applying a driving force to the elastic drive module (22) in the opposite direction to the driving force of the elastic driving force, so as to drive the positioning member (21) to return from the second position to the first position.

2. The positioning fixture according to claim 1, characterized in that: The positioning slot (11) is symmetrically provided with the positioning components (2) on both sides along the second direction (Y) perpendicular to the first direction (Z). The moving component (3) is simultaneously connected to the elastic drive module (22) in the positioning components (2) on both sides.

3. The positioning fixture according to claim 2, characterized in that: The positioning element (21) includes a positioning portion (211) protruding in the second direction (Y) and the third direction (X); the first direction (Z), the second direction (Y), and the third direction (X) are perpendicular to each other; The positioning part (211) is configured to mimic the outer contour of the workpiece (6) within its corresponding clamping range in the second direction (Y) and the third direction (X).

4. The positioning fixture according to claim 3, characterized in that: The clamping surface of the positioning part (211) is configured to mimic the outer contour of the workpiece (6) within its corresponding clamping range in the first direction (Z). The workpiece (6) has a convex-concave structure on the side surface that contacts the positioning part (211), and the convex-concave structure has an inner side surface (61) facing the positioning part (211). The clamping surface of the positioning part (211) is provided with a mating surface (2111) in the shape of the inner side surface (61).

5. The positioning fixture according to claim 3 or 4, characterized in that: The carrier (1) is provided with a plurality of positioning slots (11) arranged along the third direction (X), and each positioning slot (11) is symmetrically provided with positioning components (2) on both sides along the second direction (Y); the moving component (3) is simultaneously connected to the elastic drive module (22) in each positioning component (2) for transmission.

6. The positioning fixture according to any one of claims 1-4, characterized in that: The elastic drive module (22) includes a first sliding member (221) that is slidably disposed on the carrier (1) along a second direction (Y) perpendicular to the first direction (Z) and is capable of sliding along the second direction (Y) under the force of the first elastic member (223), and a second sliding member (222) that is slidably disposed on the first sliding member (221) along the first direction (Z) and is capable of sliding along the first direction (Z) under the force of the second elastic member (224). The positioning member (21) is disposed on the second sliding member (222). The moving component (3) includes a first moving member (31) and a second moving member (32); the first moving member (31) is drivenly connected to the first sliding member (221) and is used to apply a driving force to the first sliding member (221) in the opposite direction to the driving force of the first elastic member (223); the second moving member (32) is drivenly connected to the second sliding member (222) and is used to apply a driving force to the second sliding member (222) in the opposite direction to the driving force of the second elastic member (224).

7. The positioning fixture according to claim 6, characterized in that: The moving component (3) further includes a first driving device (33) for driving the first moving part (31) and the second moving part (32) to reciprocate along a third direction (X) perpendicular to the first direction (Z) and the second direction (Y); the first moving part (31) and the second moving part (32) are fixedly connected. At least one of the first moving member (31) and the first sliding member (221) is provided with an inclined surface, and the other abuts against the inclined surface for transmission; at least one of the second moving member (32) and the second sliding member (222) is provided with an inclined surface, and the other abuts against the inclined surface for transmission.

8. The positioning fixture according to claim 7, characterized in that: The transmission contact parts of the first moving member (31) and the first sliding member (221) are both provided with inclined surfaces of planar structure; The transmission contact parts of the second moving member (32) and the second sliding member (222) are both provided with inclined surfaces of arc-shaped surface structures.

9. The positioning fixture according to claim 8, characterized in that: The inclined surface of the first moving member (31) and the inclined surface of the second moving member (32) are staggered in the moving direction of the first moving member (31) and the second moving member (32), and the moving direction is consistent with the third direction X.

10. The positioning fixture according to any one of claims 1-3 and 7-9, characterized in that: The positioning groove (11) has a sidewall (112) that is angularly connected to the bottom surface (111). The sidewall (112) has a positioning profile that mimics the periphery structure of the workpiece (6) and is used to position the workpiece (6) in the circumferential direction.

11. The positioning fixture according to claim 5, characterized in that: It also includes a limiting component (4), which is slidably connected to the moving component (3) and is used to limit the moving position of the moving component (3); The limiting component (4) includes a limiting member (41), and the moving component (3) is provided with a limiting groove (33) extending along its moving direction and having a relative sidewall in the extending direction. The limiting member (41) is slidably connected to the limiting groove (33) and is limited by abutting against the sidewall (331).

12. The positioning fixture according to claim 11, characterized in that: The limiting component (4) further includes a second driving device (42), which is used to drive the limiting member (41) to extend into the limiting groove (33) or drive the limiting member (41) to disengage from the limiting groove (33).

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