Clamping tool

Abstract

The utility model provides a clamping tool which is applied to clamping a workpiece and comprises a first supporting assembly, a pressure maintaining assembly, a second supporting assembly and a positioning assembly. The pressure maintaining assembly is embedded in the first supporting assembly, and the pressure maintaining assembly and the first supporting assembly are rotatably connected. The second supporting assembly is connected with the first supporting assembly. The positioning assembly is embedded in the second supporting assembly, the positioning assembly and the second supporting assembly are rotatably connected, the pressure maintaining assembly is embedded and clamped in the positioning assembly, the workpiece is arranged on the pressure maintaining assembly in a sleeving mode and clamped between the pressure maintaining assembly and the positioning assembly, and the positioning assembly drives the workpiece and the pressure maintaining assembly to rotate around the central axis of the workpiece when rotating around the central axis of the workpiece. According to the tool, the problem that an existing tool has many clamping operation procedures when the to-be-machined face of a product is replaced is solved.

Description

Technical Field

[0001] The present application relates to the technical field of tooling, and in particular to a clamping tooling. Background Art

[0002] The manufacturing process of the 3C electronics industry often involves assembly processes such as gluing and welding on multiple sides of the product. When the product is used as a workpiece for gluing and welding, since the product has multiple sides (i.e., the sides to be processed), each time a side is processed (i.e., welded or glued), the product needs to be loosened and re-clamped to replace the next side for processing.

[0003] Taking the glue dispensing operation on a square miniature camera product as an example, glue dispensing is required on all four sides of the miniature camera. After each side is glued, it is necessary to loosen the clamping of the miniature camera, and then re-clamp the miniature camera to switch to the next side for glue dispensing. Therefore, the clamping method of the existing product when changing the surface to be processed requires clamping the product multiple times to change the direction of the surface to be processed of the product, that is, the product needs to be re-clamped each time the direction of the surface to be processed is changed, resulting in many clamping procedures for the product and low clamping operation efficiency. Therefore, the existing tooling has the problem of many clamping operation procedures when the product changes the surface to be processed. Utility Model Content

[0004] The purpose of the present application is to provide a clamping tool with fewer clamping operation steps when replacing the surface to be processed, which is used for clamping a workpiece, and the clamping tool includes a first support assembly, a pressure-maintaining assembly, a second support assembly and a positioning assembly. The pressure-maintaining assembly is embedded in the first support assembly, and the pressure-maintaining assembly and the first support assembly are rotatably connected. The second support assembly is connected to the first support assembly. The positioning assembly is embedded in the second support assembly, and the positioning assembly and the second support assembly are rotatably connected. The pressure-maintaining assembly is embedded in the positioning assembly, and the workpiece is sleeved on the pressure-maintaining assembly and clamped between the pressure-maintaining assembly and the positioning assembly. When the positioning assembly rotates around the center axis of the workpiece, it drives the workpiece and the pressure-maintaining assembly to rotate around the center axis of the workpiece.

[0005] Optionally, the first support assembly includes a cover plate and an upper support plate, and the cover plate, the upper support plate and the second support assembly are detachably connected in sequence.

[0006] Optionally, the pressure-maintaining assembly includes a pressure-maintaining rod, a first gasket, a first spring, a sliding block and a first connecting pin. The pressure-maintaining rod includes an upper body, a protrusion and a lower body, wherein the upper body, the protrusion and the lower body are connected in sequence, the upper body is inserted through the cover plate, the protrusion abuts against the workpiece, the lower body is embedded in the workpiece, and the lower body is embedded in the positioning assembly, and when the positioning assembly rotates around the central axis of the workpiece, the pressure-maintaining rod is driven to rotate around the central axis of the workpiece. The first gasket is inserted into the upper body, and the first gasket abuts against the cover plate. The first spring is inserted into the upper body. The sliding block is inserted into the upper body, and the first gasket, the first spring, the sliding block, the protrusion, the workpiece and the positioning assembly abut in sequence, and the sliding block is embedded in the upper support plate and is rotatably and slidably connected to the upper support plate. The first connecting pin is inserted into the sliding block and the upper body.

[0007] Optionally, the first support assembly also includes a first indexing pin, which is embedded in the upper support plate, and the sliding block includes a protruding edge and a first maximum locking height. When the protruding edge is lower than the first maximum locking height, the first indexing pin blocks the sliding block from rotating around the center axis of the workpiece, and when the protruding edge is higher than the first maximum locking height, the first indexing pin unlocks the rotation of the sliding block.

[0008] Optionally, the convex edge includes a first groove extending parallel to the central axis of the workpiece, and when the convex edge is lower than the first maximum locking height, the first indexing pin is embedded in the first groove.

[0009] Optionally, the first indexing pin includes a first flange, the first flange abuts against the upper support plate, and when the convex edge is lower than the first maximum locking height, the first flange is clamped in the first groove.

[0010] Optionally, the second support assembly includes an intermediate support plate and a lower support plate, the first support assembly and the lower support plate are detachably connected, and the intermediate support plate and the lower support plate are detachably connected.

[0011] Optionally, the positioning assembly includes a positioning seat, a transmission rod, a second gasket, a second spring and a second connecting pin. The positioning seat is embedded in the intermediate support plate and is rotatably and slidably connected to the intermediate support plate. The workpiece is clamped between the pressure-maintaining assembly and the positioning seat, and the pressure-maintaining assembly is embedded in the positioning seat. The transmission rod includes a second flange, the transmission rod passes through the lower support plate, the transmission rod is embedded in the positioning seat, and when the transmission rod rotates around the center axis of the workpiece, the positioning seat is driven to rotate around the center axis of the workpiece. The second gasket is sleeved on the transmission rod, and the second gasket is located between the intermediate support plate and the lower support plate. The second spring is sleeved on the transmission rod, and the second gasket, the second spring and the second flange are abutted in sequence. The second connecting pin passes through the positioning seat and the transmission rod.

[0012] Optionally, the transmission rod includes a stopping groove extending parallel to the central axis of the workpiece, and the second gasket includes a first protrusion, which is clamped in the stopping groove.

[0013] Optionally, the second support assembly also includes a second indexing pin, which is embedded in the middle support plate, and the positioning seat includes a protrusion and a second maximum locking height. When the protrusion is lower than the second maximum locking height, the second indexing pin blocks the positioning seat from rotating around the center axis of the workpiece. When the protrusion is higher than the second maximum locking height, the second indexing pin unlocks the rotation of the positioning seat.

[0014] Optionally, the positioning seat includes a second groove extending parallel to the central axis of the workpiece, and when the protrusion is lower than the second maximum locking height, the second indexing pin is embedded in the second groove.

[0015] Optionally, the second support assembly also includes a push claw, which is rotatably connected to the lower support plate, and the push claw includes a maximum locking angle. The push claw blocks the sliding and rotation of the positioning seat when the angle between the push claw and the lower support plate is less than the maximum locking angle, and the push claw unlocks the blocking of the sliding and rotation of the positioning seat when the angle between the push claw and the lower support plate is greater than the maximum locking angle.

[0016] Optionally, the positioning seat includes a second protrusion, and the push claw includes two claws, and when the angle between the push claw and the lower support plate is less than the maximum locking angle, the second protrusion is located between the two claws, and the two claws are located on the sliding path of the positioning seat.

[0017] The beneficial effect of the present application is that: by setting a first support assembly, a pressure-maintaining assembly, a second support assembly and a positioning assembly. The pressure-maintaining assembly is embedded in the first support assembly, and the pressure-maintaining assembly and the first support assembly are rotatably connected. The second support assembly is connected to the first support assembly. The positioning assembly is embedded in the second support assembly, and the positioning assembly and the second support assembly are rotatably connected. The pressure-maintaining assembly is embedded in the positioning assembly, and the workpiece is sleeved in the pressure-maintaining assembly and clamped between the pressure-maintaining assembly and the positioning assembly. When the positioning assembly rotates around the center axis of the workpiece, it drives the workpiece and the pressure-maintaining assembly to rotate around the center axis of the workpiece.

[0018] Since the positioning assembly can drive the workpiece to rotate around the center axis of the workpiece when it rotates around the center axis of the workpiece, and the workpiece is clamped between the pressure-maintaining assembly and the positioning assembly, the workpiece is always clamped between the pressure-maintaining assembly and the positioning assembly when it rotates. When the workpiece rotates around the center axis of the workpiece, the surface to be processed of the workpiece is also changed accordingly, that is, when the surface to be processed is changed, there is no need to re-clamp the workpiece, which saves the process of re-clamping the workpiece when the surface to be processed is changed, and improves the efficiency of changing the surface to be processed.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application and implement it according to the contents of the specification, the present application is described in detail below with reference to the preferred embodiments of the present application and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view and a partial enlarged view (including a workpiece) of the clamping tool in the first embodiment of the present application;

[0021] Figure 2 is a cross-sectional view of the clamping tool (including the workpiece) in the first embodiment of the present application;

[0022] Figure 3 is an exploded view of the first support assembly in the first embodiment of the present application;

[0023] Figure 4 is an exploded view of the pressure-maintaining assembly in the first embodiment of the present application;

[0024] Figure 5 is a partial enlarged view of a cross-sectional view of a clamping tool in the first embodiment of the present application (the pressure-maintaining assembly and the positioning assembly are in a locked state, the pressure-maintaining assembly, the workpiece and the positioning assembly can only slide in a direction parallel to the central axis of the workpiece but cannot rotate around the central axis of the workpiece, and the sliding direction is indicated by the hollow arrow in the figure);

[0025] Figure 6It is a partial enlarged view of a cross-sectional view of a clamping tool in the first embodiment of the present application (the pressure-maintaining assembly and the positioning assembly are in an unlocked state, the pressure-maintaining assembly, the workpiece and the positioning assembly can rotate around the central axis of the workpiece, and the rotation direction is indicated by the hollow arrow in the figure);

[0026] Figure 7 is a three-dimensional diagram of a first indexing pin in the first embodiment of the present application;

[0027] Figure 8 is an exploded view of the second support assembly in the first embodiment of the present application;

[0028] Fig. 9 is a three-dimensional diagram of the second indexing pin in the first embodiment of the present application;

[0029] Fig.10 is an exploded view of a positioning assembly in the first embodiment of the present application;

[0030] Fig.11 It is a three-dimensional partial enlarged view of the clamped workpiece in the first embodiment of the present application;

[0031] Fig.12 It is a partial enlarged side view of the clamped workpiece in the first embodiment of the present application;

[0032] Fig.13 It is a flow chart of a method for converting a surface to be processed in the second embodiment of the present application.

[0033] Wherein, the reference numerals are:

[0034] 1 Workpiece

[0035] 10 Surface to be processed

[0036] 2. First support assembly

[0037] 20 Cover

[0038] 21 Upper support plate

[0039] 22 First indexing plunger

[0040] 220 First flange

[0041] 3Pressure-maintaining components

[0042] 30 Pressure rod

[0043] 300 upper body

[0044] 301 Bump

[0045] 302 Lower body

[0046] 31 First Gasket

[0047] 32 First Spring

[0048] 33 Sliding block

[0049] 330 convex edge

[0050] 3300 First Groove

[0051] 34 First connecting pin

[0052] 4 Second support assembly

[0053] 40 Intermediate support plate

[0054] 41 Lower support plate

[0055] 42 Second indexing pin

[0056] 420 Third flange

[0057] 43 Push Claw

[0058] 430 Claw

[0059] 44 Support block

[0060] 45 Locating pin

[0061] 450 Fourth flange

[0062] 46 Side Panel

[0063] 47 Third connecting pin

[0064] 5 Positioning components

[0065] 50 Positioning seat

[0066] 500 Protrusion

[0067] 5000 Second Groove

[0068] 5001 Second Bump

[0069] 501 Cylindrical part

[0070] 51 transmission rod

[0071] 510 Second flange

[0072] 511 Stop groove

[0073] 52 Second gasket

[0074] 520 First Bump

[0075] 53 Second Spring

[0076] 54 Second connecting pin

[0077] A1 Workpiece center axis

[0078] P1 First maximum locking height

[0079] P2 second maximum locking height

[0080] aMaximum locking angle

[0081] Steps of S1-S3 method for converting the surface to be processed DETAILED DESCRIPTION

[0082] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the technology can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0083] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. In order to enable those skilled in the art to better understand the present application scheme, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only embodiments of a part of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in the field without making creative work should fall within the scope of protection of the present application.

[0084] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0085] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0086] First embodiment

[0087] For the convenience of explanation, a rectangular coordinate system O-XYZ is established in some drawings. The direction of the X-axis is parallel to the width direction of the first support assembly 2. The direction of the Y-axis is parallel to the length direction of the first support assembly 2. The direction of the Z-axis is parallel to the height direction of the first support assembly 2. The positive directions of the X-axis, Y-axis and Z-axis remain the same in each figure with a coordinate system.

[0088] like Figure 1 As shown, in this embodiment, a clamping tool is provided, which is used to clamp a workpiece 1, and includes a first support assembly 2, a pressure-maintaining assembly 3, a second support assembly 4 and a positioning assembly 5. The pressure-maintaining assembly 3 is embedded in the first support assembly 2, and the pressure-maintaining assembly 3 and the first support assembly 2 are rotatably connected. The second support assembly 4 is connected to the first support assembly 2. The positioning assembly 5 is embedded in the second support assembly 4, and the positioning assembly 5 and the second support assembly 4 are rotatably connected. The pressure-maintaining assembly 3 is embedded in the positioning assembly 5, and the workpiece 1 is sleeved in the pressure-maintaining assembly 3 and clamped between the pressure-maintaining assembly 3 and the positioning assembly 5. When the positioning assembly 5 rotates around the center axis A1 of the workpiece, it drives the workpiece 1 and the pressure-maintaining assembly 3 to rotate around the center axis A1 of the workpiece.

[0089] like Figure 1 As described above, the workpiece 1 may be in a square shape, and its four sides are four surfaces to be processed 10, and the four surfaces to be processed 10 are arranged around the central axis A1 of the workpiece. The central axis A1 of the workpiece may be parallel to the Z axis. The pressure-maintaining component 3 and the positioning component 5 may rotate around the central axis A1 of the workpiece, that is, the pressure-maintaining component 3, the workpiece 1 and the positioning component 5 may be coaxially arranged. The pressure-maintaining component 3, the workpiece 1 and the positioning component 5 may abut one another from top to bottom.

[0090] like Figure 1 The pressure-maintaining assembly 3 and the first support assembly 2 are rotatably connected, and the pressure-maintaining assembly 3 can be inserted into the first support assembly 2 as a shaft-like part and can rotate relative to the center axis A1 of the workpiece. The second support assembly 4 and the first support assembly 2 can be connected by screwing or clamping. The first support assembly 2 can be located above the second support assembly 4. The positioning assembly 5 and the second support assembly 4 are rotatably connected, and the positioning assembly 5 can be inserted into the second support assembly 4 as a shaft-like part and can rotate relative to the center axis A1 of the workpiece.

[0091] like Figure 1 The lower end of the positioning assembly 5 can be connected to a robot arm, and driven by the robot arm, the positioning assembly 5 can slide in a direction parallel to the Z axis and rotate around the center axis A1 of the workpiece. The first support assembly 2 can be in the shape of a rectangular parallelepiped. The first support assembly 2 can provide a first through hole for embedding the pressure-maintaining assembly 3. The second support assembly 4 can be in a U shape. The second support assembly 4 can include a plurality of second through holes for embedding the positioning assembly 5.

[0092] like Figure 1As described above, since the positioning assembly 5 can drive the workpiece 1 to rotate around the workpiece center axis A1 when rotating around the workpiece center axis A1, and the workpiece 1 is clamped between the pressure-maintaining assembly 3 and the positioning assembly 5, the workpiece 1 is always clamped between the pressure-maintaining assembly 3 and the positioning assembly 5 when rotating. When the workpiece 1 rotates around the workpiece center axis A1, the surface 10 to be processed of the workpiece 1 is also changed accordingly, that is, when the surface 10 to be processed is changed, there is no need to re-clamp the workpiece 1, which saves the process of re-clamping the workpiece 1 when the surface 10 to be processed is changed, and improves the working efficiency of replacing the surface 10 to be processed.

[0093] Please also refer to Figure 1 and Figure 2 Optionally, the pressure-maintaining assembly 3 and the first support assembly 2 are slidably connected, and the positioning assembly 5 and the second support assembly 4 are slidably connected. When the positioning assembly 5 slides in a direction parallel to the center axis A1 of the workpiece, it drives the workpiece 1 and the pressure-maintaining assembly 3 to slide in a direction parallel to the center axis A1 of the workpiece. The slidable connection between the pressure-maintaining assembly 3 and the first support assembly 2 may be that the pressure-maintaining assembly 3 is inserted into the first support assembly 2 as a shaft-like part and can slide relative to the first support assembly 2. The slidable connection between the positioning assembly 5 and the second support assembly 4 may be that the positioning assembly 5 is inserted into the second support assembly 4 as a shaft-like part and can slide relative to the second support assembly 4.

[0094] Please also refer to Figure 1 and Figure 2 Optionally, there are multiple pressure-maintaining components 3, and multiple pressure-maintaining components 3 are arranged between each other in the first supporting component 2. There are multiple positioning components 5, and multiple positioning components 5 are arranged between the second supporting component 4. There are multiple workpieces 1, and each pressure-maintaining component 3, each positioning component 5 and each workpiece 1 are arranged in a one-to-one correspondence. Multiple pressure-maintaining components 3 can be arranged in a row. Multiple workpieces 1 can be arranged in a row. Multiple positioning components 5 can be arranged in a row. The number of pressure-maintaining components 3, the number of workpieces 1 and the number of positioning components 5 are all multiple and arranged in a one-to-one correspondence, that is, the clamping tooling can process multiple workpieces 1 and replace the surface 10 to be processed at the same time, thereby improving the processing efficiency.

[0095] Please also refer to Figure 1 and Figure 3 Optionally, the first support assembly 2 includes a cover plate 20 and an upper support plate 21, and the cover plate 20, the upper support plate 21 and the second support assembly 4 are detachably connected in sequence. The cover plate 20 can be located above the upper support plate 21. The cover plate 20 and the upper support plate 21 can be in the shape of a rectangular parallelepiped. The cover plate 20, the upper support plate 21 and the second support assembly 4 can be connected by bolts. Since the sliding block 33 of the positioning assembly 5 includes a flange 330 (please refer to the sliding block 33 and the flange 330) Figure 4, the same below), the protruding edge 330 cannot pass through the upper support plate 21, so the cover plate 20, the upper support plate 21 and the second support assembly 4 are detachably connected, which can facilitate the installation of the positioning assembly 5.

[0096] Please also refer to Figure 1 , Figure 3 and Figure 4 Optionally, the pressure-maintaining assembly 3 includes a pressure-maintaining rod 30, a first gasket 31, a first spring 32, a sliding block 33 and a first connecting pin 34. The pressure-maintaining rod 30 includes an upper body 300, a protrusion 301 and a lower body 302, which are connected in sequence. The upper body 300 is penetrated through the cover plate 20, the protrusion 301 abuts against the workpiece 1, the lower body 302 is embedded in the workpiece 1, and the lower body 302 is embedded in the positioning assembly 5. When the positioning assembly 5 rotates around the center axis A1 of the workpiece, it drives the pressure-maintaining rod 30 to rotate around the center axis A1 of the workpiece. The first gasket 31 is sleeved on the upper body 300, and the first gasket 31 abuts against the cover plate 20. The first spring 32 is sleeved on the upper body 300. The sliding block 33 is sleeved on the upper body 300, and the first gasket 31, the first spring 32, the sliding block 33, the protrusion 301, the workpiece 1 and the positioning assembly 5 are pressed in sequence. The sliding block 33 is embedded in the upper support plate 21 and is rotatably and slidably connected to the upper support plate 21. The first connecting pin 34 is penetrated through the sliding block 33 and the upper body 300.

[0097] Please also refer to Figure 2 and Figure 4 The cross section of the upper body 300, the cross section of the protrusion 301 and the cross section of the lower body 302 can be square. The upper body 300, the protrusion 301 and the lower body 302 can be coaxially arranged and their central axis is parallel to the Z axis. The material of the pressure-maintaining rod 30 can be non-metallic, and the material of the sliding block 33 can be metal, so that the sliding and rotating of the sliding block 33 in the upper support plate 21 can be smoother, and the pressure-maintaining rod 30 can be prevented from damaging the workpiece 1.

[0098] Please also refer to Figure 2 and Figure 4 , the cross section of the protrusion 301 is larger than the cross section of the upper body 300 and larger than the cross section of the lower body 302. The first gasket 31 may include a square hole to be inserted into the upper body 300, that is, the first gasket 31 cannot rotate relative to the upper body 300. The first gasket 31 can be pressed against the lower side of the cover plate 20. The first gasket 31 is inserted into the upper body 300 to prevent the first spring 32 from rotating when the upper body 300 of the pressure retaining rod 30 rotates, thereby preventing the first spring 32 from being twisted due to rotation, thereby increasing the service life of the first spring 32.

[0099] Please also refer to Figure 4 and Figure 5, the first spring 32 can be located in the circular hole of the sliding block 33. The first spring 32 can be a compression spring. The sliding block 33 can be cylindrical, and a flange 330 extending radially is provided on its top. The outer wall of the sliding block 33 can be inserted into the upper support plate 21 as a shaft-like part to be rotatably and slidably connected to the upper support plate 21. The central axis of the first connecting pin 34 can be parallel to the Y axis. When the pressure maintaining assembly 3 slides upward in a direction parallel to the central axis A1 of the workpiece, the first spring 32 is compressed and deformed to generate a holding pressure on the workpiece 1.

[0100] Please also refer to Figure 1 , Figure 5 and Figure 6 Optionally, the first support assembly 2 also includes a first indexing pin 22, which is embedded in the upper support plate 21. The sliding block 33 includes a protruding edge 330 and a first maximum locking height P1. When the protruding edge 330 is lower than the first maximum locking height P1, the first indexing pin 22 blocks the sliding block 33 from rotating around the center axis A1 of the workpiece. When the protruding edge 330 is higher than the first maximum locking height P1, the first indexing pin 22 unlocks the resistance to the rotation of the sliding block 33.

[0101] Please also refer to Figure 1 , Figure 5 and Figure 6 , the first maximum locking height P1 can be the height of the first flange 220 of the first indexing pin 22. Assume that a plane is parallel to the XOY plane and passes through the top surface of the first flange 220, then the distance from the plane to the top surface of the upper support plate 21 is the first maximum locking height P1. When the bottom surface of the flange 330 is lower than the top surface of the first flange 220, the first indexing pin 22 blocks the sliding block 33 from rotating around the center axis A1 of the workpiece. When the bottom surface of the flange 330 is higher than the top surface of the first flange 220, the first indexing pin 22 unlocks the blockage to the rotation of the sliding block 33. When there are multiple pressure-maintaining assemblies 3, there can also be multiple first indexing pins 22, and each positioning assembly 5 can be configured with two first indexing pins 22. The central axes of each first indexing pin 22 can be parallel to each other and to the Z axis.

[0102] When the sliding block 33 is locked, that is, the moment when the processing surface 10 of the workpiece 1 is converted and can be processed, processing (such as gluing or welding the processing surface 10) may cause the workpiece 1 to rotate. Therefore, setting the first indexing pin 22 can prevent the workpiece 1 from rotating during processing.

[0103] Please also refer to Figure 4 and Figure 6Optionally, the convex edge 330 includes a first groove 3300 extending parallel to the center axis A1 of the workpiece. When the convex edge 330 is lower than the first maximum locking height P1, the first indexing pin 22 is embedded with the first groove 3300. The first groove 3300 extends parallel to the center axis A1 of the workpiece, so as to enable the sliding block 33 to slide in a direction parallel to the center axis A1 of the workpiece, so as to facilitate the subsequent turning of the sliding block 33. The cross section of the first groove 3300 may be semicircular.

[0104] Please also refer to Figure 4 and Figure 5 Optionally, the number of the first indexing pins 22 is two, the sliding block 33 includes two first groove groups, each first groove group includes two first grooves 3300, and each time the sliding block 33 changes its angle, the two first indexing pins 22 replace the first groove group. The two first grooves 3300 of each first groove group can be symmetrically arranged about the central axis of the sliding block 33. After each angle change of the sliding block 33, the to-be-machined surface 10 of the workpiece 1 (please refer to Figure 1 , the same below). The angle between the lines connecting the center points of the two first groove groups can be 90° to adapt to the rotation of the square workpiece 1, that is, the sliding block 33 rotates 90° each time to achieve the switching of a surface 10 to be processed. The sliding block 33 can also include multiple first groove groups to provide more rotation angles when the workpiece 1 has multiple surfaces 10 to be processed.

[0105] Please also refer to Figure 4 , Figure 6 and Figure 7 Optionally, the first indexing pin 22 includes a first flange 220, and the first flange 220 abuts against the upper support plate 21. When the flange 330 is lower than the first maximum locking height P1, the first flange 220 is clamped in the first groove 3300. The first flange 220 may be cylindrical. The bottom surface of the first flange 220 may abut against the top surface of the upper support plate 21. The diameter of the first flange 220 is larger than the diameter of the portion of the first indexing pin 22 outside the first flange 220. That is, the first indexing pin 22 may be clamped by the first flange 220 and will not fall into the upper support plate 21, and the first flange 220 may also lock the rotation of the sliding block 33.

[0106] Please also refer to Figure 1 , Figure 8 and Fig. 9Optionally, the second support assembly 4 includes an intermediate support plate 40 and a lower support plate 41, the first support assembly 2 and the lower support plate 41 are detachably connected, and the intermediate support plate 40 and the lower support plate 41 are detachably connected. The intermediate support plate 40 and the upper support plate 21 are spaced apart to leave space for placing the workpiece 1 and observing the processing condition of the workpiece 1. The intermediate support plate 40 and the lower support plate 41 can be in the shape of a rectangular parallelepiped. The first support assembly 2 and the lower support plate 41 can be connected by bolts. The intermediate support plate 40 and the lower support plate 41 can be connected by bolts. Since the second indexing pin 42 includes a third flange 420, the positioning pin 45 includes a fourth flange 450 (please refer to the fourth flange 450 Figure 5 ), the third flange 420 and the fourth flange 450 cannot pass through the middle support plate 40, so the detachable connection between the middle support plate 40 and the lower support plate 41 can facilitate the installation of the second indexing pin 42 and the positioning pin 45.

[0107] Please also refer to Figure 1 , Figure 5 and Fig.10 Optionally, the positioning assembly 5 includes a positioning seat 50, a transmission rod 51, a second gasket 52, a second spring 53, and a second connecting pin 54. The positioning seat 50 is embedded in the middle support plate 40 and is rotatably and slidably connected to the middle support plate 40. The workpiece 1 is clamped between the pressure-maintaining assembly 3 and the positioning seat 50, and the pressure-maintaining assembly 3 is embedded in the positioning seat 50. The transmission rod 51 includes a second flange 510, the transmission rod 51 passes through the lower support plate 41, and the transmission rod 51 is embedded in the positioning seat 50. When the transmission rod 51 rotates around the center axis A1 of the workpiece, the positioning seat 50 is driven to rotate around the center axis A1 of the workpiece. The second gasket 52 is sleeved on the transmission rod 51, and the second gasket 52 is located between the middle support plate 40 and the lower support plate 41. The second spring 53 is sleeved on the transmission rod 51, and the second gasket 52, the second spring 53, and the second flange 510 are pressed against in sequence. The second connecting pin 54 is penetrated by the positioning seat 50 and the transmission rod 51. The second gasket 52 can be clamped on the transmission rod 51 .

[0108] Please also refer to Figure 5 and Fig.10 The positioning seat 50 includes a protruding portion 500 and a cylindrical portion 501. The cross section of the protruding portion 500 is larger than the cross section of the cylindrical portion 501. The protruding portion 500 is arranged at the top of the cylindrical portion 501. The bottom surface of the protruding portion 500 abuts against the top surface of the middle support plate 40. A square hole is arranged in the middle of the protruding portion 500 to facilitate the pressure-maintaining rod 30 (please refer to the pressure-maintaining rod 30). Figure 4, the same below) is embedded in the positioning seat 50, that is, the lower body 302 of the pressure-maintaining rod 30 is prevented from rotating relative to the positioning seat 50. The workpiece 1 is placed on the top of the positioning seat 50. The cylindrical portion 501 is embedded in the middle support plate 40 and can slide and rotate relative to the middle support plate 40. The top of the transmission rod 51 can be pin-connected with the cylindrical portion 501 of the positioning seat 50 through the second connecting pin 54, and the top of the transmission rod 51 can be embedded in the cylindrical portion 501 of the positioning seat 50.

[0109] Please also refer to Figure 5 and Fig.10 , the second gasket 52 and the second flange 510 are arranged apart, and the second spring 53 is located between the second gasket 52 and the second flange 510. The outer diameter of the second gasket 52 and the outer diameter of the second flange 510 are greater than the outer diameter of the second spring 53. The second gasket 52, the second spring 53 and the second flange 510 can be abutted in sequence from top to bottom. The second spring 53 can be a compression spring. A recessed groove can be provided on the lower support plate 41, and the second gasket 52 can be embedded in the recessed groove. The central axis of the second connecting pin 54 can be parallel to the Y-axis. When the positioning assembly 5 slides upward in a direction parallel to the central axis A1 of the workpiece, the second spring 53 is compressed and deformed to generate a holding pressure on the workpiece 1.

[0110] like Fig.10 As shown, optionally, the transmission rod 51 includes a stop groove 511 extending parallel to the workpiece center axis A1, and the second gasket 52 includes a first protrusion 520, which is clamped in the stop groove 511. The first protrusion 520 cooperates with the stop groove 511 to prevent the second spring 53 from rotating when the transmission rod 51 rotates, thereby preventing the second spring 53 from being twisted due to rotation, thereby increasing the service life of the second spring 53. At the same time, the setting of the stop groove 511 parallel to the workpiece center axis A1 will not prevent the positioning assembly 5 from sliding up and down, thereby facilitating the subsequent angle conversion of the positioning seat 50.

[0111] Please also refer to Figure 1 , Figure 6 and Fig.10 Optionally, the second support assembly 4 also includes a second indexing pin 42, which is embedded in the middle support plate 40. The positioning seat 50 includes a protrusion 500 and a second maximum locking height P2. When the protrusion 500 is lower than the second maximum locking height P2, the second indexing pin 42 blocks the positioning seat 50 from rotating around the center axis A1 of the workpiece. When the protrusion 500 is higher than the second maximum locking height P2, the second indexing pin 42 unlocks the blockage on the rotation of the positioning seat 50.

[0112] Please also refer to Figure 1 , Figure 6 and Fig.10, the second maximum locking height P2 can be the height of the portion of the second indexing pin 42 exposed from the middle support plate 40 (hereinafter referred to as the exposed portion). Assume that a plane is parallel to the XOY plane and passes through the top of the second indexing pin 42, then the distance from the plane to the top surface of the middle support plate 40 is the second maximum locking height P2. When the bottom surface of the protrusion 500 is lower than the height of the exposed portion, the second indexing pin 42 blocks the locating seat 50 from rotating around the center axis A1 of the workpiece. When the bottom surface of the protrusion 500 is higher than the height of the exposed portion, the second indexing pin 42 unlocks the blockage of the rotation of the locating seat 50. When there are multiple positioning assemblies 5, there can also be multiple second indexing pins 42, and each positioning assembly 5 is equipped with a second indexing pin 42. The central axes of each second indexing pin 42 can be parallel to each other and coplanar with the central axes of each first indexing pin 22.

[0113] When the positioning seat 50 is locked, that is, the moment when the processing surface 10 of the workpiece 1 is converted and can be processed, processing (such as gluing or welding the processing surface 10) may cause the workpiece 1 to rotate. Therefore, setting a second indexing pin 42 can prevent the workpiece 1 from rotating during processing.

[0114] Please also refer to Figure 1 , Figure 6 and Fig.10 Optionally, the positioning seat 50 includes a second groove 5000 extending parallel to the center axis A1 of the workpiece, and when the protrusion 500 is lower than the second maximum locking height P2, the second indexing pin 42 is embedded in the second groove 5000. The second groove 5000 and the second protrusion 5001 can be provided on the protrusion 500 of the positioning seat 50. The second groove 5000 extends parallel to the center axis A1 of the workpiece, and the positioning seat 50 can slide in a direction parallel to the center axis A1 of the workpiece to facilitate the subsequent turning of the positioning seat 50. The cross section of the second groove 5000 can be semicircular.

[0115] Please also refer to Figure 1 , Figure 6 and Fig.10 Optionally, the positioning seat 50 includes four second grooves 5000, and each time the positioning seat 50 changes its rotation angle, the second indexing pin 42 replaces the second groove 5000. Each time the positioning seat 50 changes its rotation angle, the workpiece 1 completes a conversion of the surface 10 to be processed. The angles between the lines connecting the center points of the four second grooves 5000 can be 90° between each other. The positioning seat 50 can also include multiple second grooves 5000 to provide more rotation angles when the workpiece 1 has multiple surfaces 10 to be processed. The number of second grooves 5000 is the same as the number of first grooves 3300 and corresponds one to one so that the positioning component 5 and the pressure-maintaining component 3 have the same rotation angle each time.

[0116] Please also refer to Figure 5 and Fig. 9 Optionally, the second indexing pin 42 further includes a third flange 420, and the third flange 420 is sandwiched between the middle support plate 40 and the lower support plate 41. The third flange 420 can be disposed at the bottom of the second indexing pin 42. The second indexing pin 42 includes the third flange 420, which can prevent the second indexing pin 42 from sliding up and down.

[0117] Please also refer to Figure 1 , Fig.11 and Fig.12 Optionally, the second support assembly 4 also includes a push claw 43, which is rotatably connected to the lower support plate 41. The push claw 43 includes a maximum locking angle a. When the angle between the push claw 43 and the lower support plate 41 is less than the maximum locking angle a, the push claw 43 blocks the positioning seat 50 from sliding and rotating. When the angle between the push claw 43 and the lower support plate 41 is greater than the maximum locking angle a, the push claw 43 unlocks the blocking of the sliding and rotation of the positioning seat 50.

[0118] Please also refer to Fig.11 and Fig.12 The maximum locking angle a is the angle between the inner side of the push claw 43 and the side of the lower support plate 41 when the positioning seat 50 moves upward and is just not blocked by the push claw 43. The push claw 43 can be rotatably connected to the lower support plate 41 through the third connecting pin 47. The central axis of the third connecting pin 47 can be parallel to the Y axis. That is, the push claw 43 can rotate around the third connecting pin 47. The number of the push claws 43 can be multiple and they are arranged one by one with the positioning assembly 5.

[0119] Please also refer to Fig.11 and Fig.12 Optionally, the positioning seat 50 includes a second protrusion 5001, and the push claw 43 includes two claws 430. When the angle between the push claw 43 and the lower support plate 41 is less than the maximum locking angle a, the second protrusion 5001 is located between the two claws 430, and the two claws 430 are located on the sliding path of the positioning seat 50. The claw 430 can be arranged on the top of the push claw 43. The number of the second protrusions 5001 can be multiple groups, and each group of second protrusions 5001 can include two second protrusions 5001. Each group of second protrusions 5001 is located between the two claws 430. For example, the number of the second protrusions 5001 can be 4 groups. A second groove 5000 is arranged in the middle of each group of second protrusions 5001. The space enclosed by each group of second protrusions 5001 is adapted to the length and width of the workpiece 1 to facilitate the positioning of the workpiece 1. The extension direction of the claw 430 can be parallel to the X axis. The claw 430 is provided to block the rotation and sliding of the positioning seat 50 at one location, and there is no need to separately provide stop parts to block the rotation and sliding of the positioning seat 50. The structure is simple and the installation is convenient.

[0120] Please also refer to Figure 1 , Figure 3 and Figure 8 Optionally, the first support assembly 2 includes an upper support plate 21, and the second support assembly 4 includes an intermediate support plate 40, a lower support plate 41 and two support blocks 44, the two support blocks 44 are sandwiched between the upper support plate 21 and the lower support plate 41, the intermediate support plate 40 is located between the two support blocks 44, and the upper support plate 21, each support block 44 and the lower support plate 41 are detachably connected. Each support block 44 can be in the shape of a rectangular parallelepiped. The two support blocks 44 can be spaced apart. The upper support plate 21, each support block 44 and the lower support plate 41 can be connected by bolts. By setting two spaced apart support blocks 44, a space can be left between the two support blocks 44 for convenient observation of the processing state of the workpiece 1 when the to-be-processed surface 10 of the workpiece 1 is processed.

[0121] Please also refer to Figure 1 , Figure 5 and Figure 8 Optionally, the second support assembly 4 further includes a positioning pin 45, which is inserted into the upper support plate 21, the middle support plate 40 and the lower support plate 41. The positioning pin 45 includes a fourth flange 450, which is sandwiched between the middle support plate 40 and the lower support plate 41. The positioning pin 45 can achieve alignment of the first support assembly 2 and the second support assembly 4, and further achieve alignment of the pressure holding assembly 3 and the positioning assembly 5. The central axis of the positioning shaft can be arranged parallel to the Z axis.

[0122] Please also refer to Figure 1 and Figure 8 Optionally, the second support assembly 4 further includes a side plate 46, and the side plate 46 is connected to the lower support plate 41. The number of the side plates 46 can be multiple. For example, the number of the side plates 46 can be four. Two side plates 46 can be respectively arranged on the left and right sides of the lower support plate 41. The side plates 46 and the lower support plate 41 can be connected by bolts. The direction of each side plate 46 can be L-shaped.

[0123] Second embodiment

[0124] like Fig.13 , as shown in this embodiment, a method for converting a surface to be processed 10 is provided, which is applied to the clamping tool in the first embodiment, and includes:

[0125] S1: clamping the workpiece 1 between the positioning component 5 and the pressure-maintaining component 3;

[0126] S2: Push the positioning assembly 5, the workpiece 1 and the pressure-maintaining assembly 3 to move in a direction parallel to the center axis A1 of the workpiece; and

[0127] S3: When the moving distance of the positioning assembly 5, the workpiece 1 and the pressure-maintaining assembly 3 is greater than the highest position of the first maximum locking height P1 and the second maximum locking height P2, the positioning assembly 5, the workpiece 1 and the pressure-maintaining assembly 3 are pushed to rotate around the workpiece center axis A1. For example, when the first maximum locking height P1 is greater than the second maximum locking height P2, the moving distance of the positioning assembly 5, the workpiece 1 and the pressure-maintaining assembly 3 must be greater than the first maximum locking height P1.

[0128] When the surface 10 to be processed needs to be processed, the push claw 43 needs to be rotated to deviate from the maximum locking angle a, and then the workpiece 1 is placed on the positioning seat 50, and then the push claw 43 is rotated to a position where the angle between the push claw 43 and the lower support plate 41 is less than the maximum locking angle a to complete the locking of the workpiece 1. For example, the push claw 43 can be rotated to an angle where the inner side surface of the push claw 43 is parallel to the YOZ plane to lock the positioning seat 50. Then the pressure-maintaining component 3 is embedded in the workpiece 1, and the workpiece 1 is pressed against the positioning seat 50, and then the surface 10 to be processed of the workpiece 1 is processed (for example, glue or welding operations are performed on the surface 10 to be processed). After the current surface 10 to be processed is processed, steps S1-S3 are executed to complete the conversion of the surface 10 to be processed.

[0129] The above is a detailed introduction to the clamping tooling provided in the embodiments of the present application. For those skilled in the art, according to the ideas of the embodiments of the present application, there will be some changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application. All equivalent modifications or changes made according to the spirit and technical ideas of the present application should still be covered by the claims of the present application.

Claims

1. A clamping tool, which is used for clamping a workpiece, characterized in that: The clamping tool comprises: a first support assembly; A pressure-maintaining assembly, which is embedded in the first supporting assembly, and the pressure-maintaining assembly and the first supporting assembly are rotatably connected; A second support assembly connected to the first support assembly; and A positioning assembly is embedded in the second supporting assembly, the positioning assembly and the second supporting assembly are rotatably connected, the pressure maintaining assembly is embedded in the positioning assembly, the workpiece is sleeved in the pressure maintaining assembly and is clamped between the pressure maintaining assembly and the positioning assembly, and when the positioning assembly rotates around the center axis of the workpiece, it drives the workpiece and the pressure maintaining assembly to rotate around the center axis of the workpiece.

2. The clamping tool according to claim 1, characterized in that: The first support assembly includes a cover plate and an upper support plate, and the cover plate, the upper support plate and the second support assembly are detachably connected in sequence; The pressure maintaining component comprises: A pressure-maintaining rod, comprising an upper body, a protrusion and a lower body, wherein the upper body, the protrusion and the lower body are connected in sequence, the upper body is passed through the cover plate, the protrusion abuts against the workpiece, the lower body is embedded in the workpiece, and the lower body is embedded in the positioning assembly, and when the positioning assembly rotates around the central axis of the workpiece, the pressure-maintaining rod is driven to rotate around the central axis of the workpiece; A first gasket, which is clamped on the upper body, and the first gasket is pressed against the cover plate; A first spring, which is sleeved on the upper body; A sliding block, which is sleeved on the upper body, and the first gasket, the first spring, the sliding block, the protrusion, the workpiece and the positioning assembly are pressed against in sequence, and the sliding block is embedded in the upper support plate and is rotatably and slidably connected to the upper support plate; and A first connecting pin is provided through the sliding block and the upper body.

3. The clamping tool according to claim 2, characterized in that: The first support assembly also includes a first indexing pin, which is embedded in the upper support plate. The sliding block includes a protruding edge and a first maximum locking height. When the protruding edge is lower than the first maximum locking height, the first indexing pin blocks the sliding block from rotating around the central axis of the workpiece. When the protruding edge is higher than the first maximum locking height, the first indexing pin unlocks the blocking of the sliding block from rotating.

4. The clamping tool according to claim 3, characterized in that: The convex edge includes a first groove extending parallel to the central axis of the workpiece. When the convex edge is lower than the first maximum locking height, the first indexing pin is embedded in the first groove.

5. The clamping tool according to claim 4, characterized in that: The first indexing pin includes a first flange, the first flange abuts against the upper support plate, and when the convex edge is lower than the first maximum locking height, the first flange is clamped in the first groove.

6. The clamping tool according to claim 1, characterized in that: The second support assembly comprises an intermediate support plate and a lower support plate, the first support assembly and the lower support plate are detachably connected, and the intermediate support plate and the lower support plate are detachably connected; The positioning component comprises: A positioning seat, which is embedded in the middle support plate and rotatably and slidably connected to the middle support plate, the workpiece is clamped between the pressure-maintaining component and the positioning seat, and the pressure-maintaining component is embedded in the positioning seat; A transmission rod, comprising a second flange, wherein the transmission rod passes through the lower support plate and is embedded in the positioning seat, and when the transmission rod rotates around the central axis of the workpiece, the positioning seat is driven to rotate around the central axis of the workpiece; A second gasket, which is sleeved on the transmission rod, and the second gasket is located between the middle support plate and the lower support plate; A second spring is sleeved on the transmission rod, and the second gasket, the second spring and the second flange abut against each other in sequence; and A second connecting pin is inserted through the positioning seat and the transmission rod.

7. The clamping tool according to claim 6, characterized in that: The transmission rod comprises a stop groove extending parallel to the central axis of the workpiece, and the second gasket comprises a first protrusion, which is clamped in the stop groove.

8. The clamping tool according to claim 6, characterized in that: The second support assembly also includes a second indexing pin, which is embedded in the middle support plate. The positioning seat includes a protrusion and a second maximum locking height. When the protrusion is lower than the second maximum locking height, the second indexing pin blocks the positioning seat from rotating around the central axis of the workpiece. When the protrusion is higher than the second maximum locking height, the second indexing pin unlocks the blockage on the rotation of the positioning seat.

9. The clamping tool according to claim 8, characterized in that: The positioning seat comprises a second groove extending parallel to the central axis of the workpiece, and when the protrusion is lower than the second maximum locking height, the second indexing pin is embedded in the second groove.

10. The clamping tool according to claim 6, characterized in that: The second support assembly also includes a push claw, which is rotatably connected to the lower support plate. The push claw includes a maximum locking angle. The push claw blocks the sliding and rotation of the positioning seat when the angle between the push claw and the lower support plate is less than the maximum locking angle. The push claw unlocks the blocking of the sliding and rotation of the positioning seat when the angle between the push claw and the lower support plate is greater than the maximum locking angle.

11. The clamping tool according to claim 10, characterized in that: The positioning seat includes a second protrusion, and the push claw includes two claws. When the angle between the push claw and the lower support plate is less than the maximum locking angle, the second protrusion is located between the two claws, and the two claws are located on the sliding path of the positioning seat.

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