Chuck correction jig and workpiece fixing device

Abstract

The utility model belongs to the technical field of machining equipment, and provides a chuck correction jig which is used for correcting multi-connected chucks. The chuck correction jig comprises a base plate, the base plate is provided with a first end face and a second end face which are opposite to each other, the first end face is provided with a correction block used for measuring the levelness, the second end face is provided with a plurality of blind rivets extending outwards in parallel, and the blind rivets are used for being inserted into all chucks at the same time; and the correction block and the plurality of blind rivets are arranged on the central axis of the base plate. The utility model further provides a workpiece fixing device with the chuck correction jig. The technical problems that in the prior art, a chuck correction tool is complex in structure, multiple chucks are difficult to correct at the same time, and correction uniformity is affected are solved.

Description

Technical Field

[0001] The present application belongs to the technical field of mechanical processing equipment, and in particular relates to a chuck correction fixture and a workpiece fixing device. Background Art

[0002] The chuck is a mechanical device used to clamp the workpiece on the machine tool. It uses the radial movement of the movable jaws evenly distributed on the chuck body to clamp and position the workpiece on the machine tool. In practical applications, since each component on the chuck is the key to high-precision matching, the components on the chuck need to be precision trimmed to make each component fully matched, thereby improving the matching accuracy of the chuck.

[0003] During the trimming process, correction operations need to be performed to improve the accuracy of the radial movement of each movable claw on the chuck, and to make the workpiece fixed on the chuck flat and meet the fixing requirements. The fixing requirement can be understood as that after the workpiece is fixed by the chuck, the workpiece and the clamping surface of the machine tool are parallel to avoid tilting and other conditions, otherwise it will affect the accuracy of the machining. Here, the movable claws in the chuck need to clamp the insert on the workpiece with high precision to achieve this, especially on the multi-link chuck fixing structure (that is, a fixing structure in which more than two chucks are arranged adjacent to each other). Although this multi-link chuck fixing structure can orient the fixed direction of the workpiece, the uniformity of the fixing accuracy of each chuck is difficult to guarantee, so a special correction operation is required. Common correction tools are complicated, and the chucks need to be corrected one by one. The operation is cumbersome and difficult to maintain consistency. It is very time-consuming and affects actual use. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a chuck correction fixture and a workpiece fixing device to solve the technical problems in the prior art that the chuck correction tool has a complex structure, is difficult to calibrate multiple chucks at the same time, and affects the uniformity of correction.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a chuck correction fixture for calibrating a multi-jointed chuck; the chuck correction fixture includes a base plate, the base plate has a first end face and a second end face relative to each other, the first end face is provided with a correction block for measuring the horizontality, the second end face is provided with a plurality of pull pins extending outward in parallel, the plurality of pull pins are used to be inserted into each chuck at the same time; the correction block and the plurality of pull pins are both arranged on the central axis of the base plate.

[0006] The beneficial effect of the chuck correction jig provided by the present application is that: compared with the prior art, the chuck correction jig of the present application utilizes a pull pin to be inserted into each chuck of the multi-joint, thereby synchronously correcting the clamping concentricity of multiple chucks, and each chuck can adjust the clamping fit accuracy of the movable claw in the chuck to the inserted object according to the insertion situation of the pull pin. On this basis, the correction block on the chuck correction jig is used to correct the horizontality, that is, when the pull pin and the chuck are plugged in, the horizontality is corrected by the correction block at the same time, thereby ensuring that after the real supporting part is synchronously inserted into the chuck through the plug-in part at the bottom, the fixing posture of the entire supporting part and the chuck remains flat, avoiding tilting, etc., and effectively improving the fixing accuracy of the workpiece. The chuck correction jig of the present application has a simple structure and is easy to process and form. It can quickly correct multi-joint chucks, effectively improve the matching uniformity of multi-joint chucks, and thus improve the correction efficiency.

[0007] The structure of the rivet is improved, and each of the rivets includes a base, an extension shaft, and a buckle cap connected in sequence. The base is fixed on the second end face of the base, and the buckle cap is arranged on the extension end of the extension shaft. The outer diameter of the extension shaft is smaller than the inner diameter of the buckle cap and the base. When the rivet is inserted into the chuck, the movable claws in the chuck move radially close to each other and clamp on the extension shaft, while the buckle cap is placed outside the movable claws. This clamping method is conducive to keeping the carrier on the rivet stably fixed on the chuck and effectively preventing the rivet from falling out.

[0008] The structure on the base plate is improved, and a plurality of placement holes for inserting the support body are also provided on the second end surface of the base plate, and the plurality of placement holes are respectively arranged close to the corners of the base plate, so that the placement holes are away from the pull pins in the middle of the base plate, and at the same time avoid the position of the chuck. By using the placement holes on the base plate, the chuck correction jig can be placed on the surface of the placement carrier such as a desktop, a locker, etc., to avoid the pull pins from contacting the surface of the placement carrier and sticking impurities such as dust particles, which may affect the correction accuracy of the chuck.

[0009] In one embodiment, the calibration block is provided with a reference hole for calibrating the center point between the multiple chucks, and the reference hole is opened at the center of the calibration block so as to set the midpoint of the support body of the workpiece. The support body that actually supports the workpiece can set the center point with the reference hole on the calibration block, which is conducive to ensuring the balance of the workpiece placed on the support body.

[0010] In one embodiment, a groove track is provided on the periphery of the substrate for the extraction tool to be inserted into. The groove track is arranged around the periphery of the substrate so that the clamping part on the extraction tool can be inserted into the groove track for connection and fixation, making it convenient for people to manually transfer the position of the chuck correction fixture through the extraction tool.

[0011] The present application also provides a workpiece fixing device, including a chuck seat, a manipulator, a pallet, and the chuck correction jig, wherein the chuck seat is provided with a plurality of chucks, and the interior of the chuck has a movable claw for clamping an inserted object; the pallet is used to carry the workpiece, and the bottom of the pallet is provided with a pin for inserting into the chuck for fixing, and the pin is consistent in shape with the pull pin on the chuck correction jig; the manipulator is used to move the pallet or the chuck correction jig to the chuck seat for simultaneous fixing of the plurality of chucks. When the chuck is to be corrected, the manipulator moves the chuck correction jig to the chuck for correction. In actual processing operations, the manipulator transfers the pallet carrying the workpiece to the chuck for fixing and actual processing.

[0012] The structure on the chuck seat is improved, and the chuck seat is provided with a plurality of mounting holes for mounting fasteners, and the plurality of mounting holes are arranged to avoid the chuck on the chuck seat. Fasteners such as screws are installed on each mounting hole to firmly mount the chuck seat on the machine tool, effectively avoiding the chuck seat on the machine tool from having unstable conditions such as partial floating.

[0013] In one embodiment, every two adjacent mounting holes in the plurality of mounting holes form a group of mounting units, and the plurality of groups of mounting units are evenly distributed on the chuck seat, which is conducive to adapting to machine tools of different specifications. For the installation and positioning of the chuck seat, it can be selected at a local position of the chuck seat according to the hole layout on the machine tool, and fixed with the mounting holes corresponding to the local position, thereby improving the installation adaptability.

[0014] The structure of the chuck correction fixture is improved. A connection end for installation and connection with the manipulator is provided on one side of the base plate of the chuck correction fixture. The connection end is provided with a connection head extending outward. The manipulator is provided with a connection part. The connection part is provided with a clamping hole for the connection head to extend into. The manipulator is also provided with a clamping mechanism located inside the clamping hole. The manipulator can extract the entire chuck correction fixture and transfer its position by grasping the connection head.

[0015] In one embodiment, a limiting groove for the manipulator to be embedded in is provided on the connecting end, the connecting head is arranged in the limiting groove of the connecting end, and the inner side of the limiting groove is provided with guide ribs arranged opposite to each other; guide holes that are plugged into and cooperate with the guide ribs are provided on both sides of the connecting part of the manipulator to play the role of automatic alignment and automatic guiding, which can quickly confirm the rotation and flatness of the chuck, so that the manipulator can smoothly and quickly pick up the chuck correction fixture to perform position transfer operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the chuck seat provided in the embodiment of the present application Figure 1 ;

[0018] Figure 2 Schematic diagram of the assembly structure of the chuck correction fixture and the chuck seat provided in the embodiment of the present application Figure 1 ;

[0019] Figure 3 Schematic diagram of the three-dimensional structure of the chuck correction fixture provided in the embodiment of the present application Figure 1 ;

[0020] Figure 4 Schematic diagram of the assembly structure of the chuck correction fixture and the chuck seat provided in the embodiment of the present application Figure 2 ;

[0021] Figure 5 Schematic diagram of the assembly structure of the chuck correction fixture and the chuck seat provided in the embodiment of the present application Figure 3 ;

[0022] Figure 6 A partial enlarged view of a pull nail provided in an embodiment of the present application;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of the chuck correction fixture provided in the embodiment of the present application Figure 2 ;

[0024] Figure 8 Schematic diagram of the three-dimensional structure of the chuck correction fixture provided in the embodiment of the present application Figure 3 ;

[0025] Fig. 9 A schematic diagram of the assembly structure of a workpiece fixing device provided in an embodiment of the present application;

[0026] Fig.10 Schematic diagram of the three-dimensional structure of the chuck seat provided in the embodiment of the present application Figure 2 ;

[0027] Fig.11 A schematic diagram of the assembly structure of the manipulator and the chuck correction fixture provided in an embodiment of the present application;

[0028] Fig.12 Schematic diagram of the three-dimensional structure of the chuck correction fixture provided in the embodiment of the present application Figure 4 .

[0029] Among them, the reference numerals in the figure are:

[0030] 100-Chuck correction fixture;

[0031] 1-chuck; 11-movable claw;

[0032] 2-chuck seat; 21-mounting hole; 22-mounting unit;

[0033] 3-substrate; 31-first end surface; 32-second end surface; 321-placement hole; 33-groove rail;

[0034] 4-calibration block; 41-reference hole; 42-calibration convex edge;

[0035] 5-pull nail; 51-base; 52-extension shaft; 53-buckle cap;

[0036] 6-manipulator; 61-connecting part; 62-clamping hole; 63-guide hole;

[0037] 7-connection end; 71-connection head; 72-limiting groove; 73-guide rib. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] like Figure 1 The figure shows a clamping tool with two chucks 1, where the two chucks 1 are adjacently arranged on a chuck seat 2. In the actual clamping process, a supporting member (not shown) can be provided to carry the workpiece, and the bottom of the supporting member is provided with the same number of plug-in parts as the chucks 1, so that the workpiece can be mounted on the two chucks 1 through the supporting member.

[0043] In practical applications, the workpiece is fixed on the chuck 1 by a supporting member so that the tool on the machine tool can process the workpiece. Therefore, the installation posture of the supporting member on the chuck 1 is particularly important. The installation posture here can be understood as a fixed posture consisting of the arrangement angle of the supporting member (mainly refers to the horizontal direction here), the horizontality (whether the clamping surface of the supporting member such as the machine tool is parallel), etc. If there is a deviation in the fixed posture, it will affect the accuracy of the cutting. Therefore, the fixing and matching accuracy of the components on each chuck is high, and it needs to be corrected before operation.

[0044] Traditional calibration tools have a complex structure and can only calibrate the chucks 1 one by one. Calibration is difficult and time-consuming, and is difficult to apply to multi-chucks 1, resulting in difficulty in unifying the setting accuracy of each chuck 1, which is time-consuming and affects actual use.

[0045] Here, the embodiment of the present application provides a new type of chuck correction fixture and workpiece fixing device, which can synchronously correct the multi-chuck 1, quickly correct the clamping concentricity and overall horizontality of each chuck, and effectively solve the technical problems that the traditional chuck correction tool has a complex structure, is difficult to quickly correct multiple chucks at the same time, and affects the uniformity of correction. It is now described in detail.

[0046] Please also read Figure 2 , Figure 3 and Figure 4 The chuck correction fixture is used for rapid and synchronous correction of multiple chucks 1.

[0047] like Figure 2 and Figure 3As shown, the chuck correction fixture includes a substrate 3, and the substrate 3 has a first end face 31 and a second end face 32 opposite to each other. In this embodiment, the first end face 31 and the second end face 32 can be understood as the upper end face and the lower end face on the substrate 3, wherein the upper end face is equivalent to a side of the supporting member for supporting the workpiece, and the lower end face is equivalent to a side of the supporting member facing the chuck 1.

[0048] A correction block 4 for measuring levelness is disposed on the first end surface 31 of the base plate 3 . The correction block 4 can be understood as a level ruler for detecting levelness.

[0049] A plurality of pull pins 5 extending outward in parallel are arranged on the second end surface 32 of the base plate 3 , where “outward” here can be understood as the direction toward the chuck. The plurality of pull pins 5 are used to be inserted into the corresponding chucks 1 simultaneously.

[0050] In this embodiment, if Figure 3 As shown, for the structure of the two-joint chuck 1 , two pull pins 5 extending downward and in parallel are provided on the second end surface 32 of the base plate 3 , and the two pull pins 5 are respectively and synchronously inserted into the corresponding chucks 1 when the base plate 3 moves onto the chuck 1 .

[0051] Among them, Figure 5 As shown, the correction blocks 4 and the pull pins 5 on the two end surfaces of the base plate 3 are both arranged on the central axis S of the base plate 3 to ensure the overall balance.

[0052] Compared with the prior art, the chuck correction fixture provided in the embodiment of the present application utilizes the pull pin 5 to be inserted into each of the multiple chucks 1 synchronously, so as to synchronously correct the clamping concentricity of multiple chucks 1. Each chuck 1 can adjust the clamping fit accuracy of the movable claw 11 in the chuck 1 to the inserted object according to the insertion of the pull pin 5. On this basis, the correction block 4 on the chuck correction fixture is used to correct the horizontality, that is, when the pull pin 5 and the chuck 1 are plugged in, the horizontality is corrected by the correction block 4 at the same time, so as to ensure that after the real supporting part is synchronously inserted into the chuck 1 through the plug-in part at the bottom, the fixing posture of the entire supporting part and the chuck 1 remains flat, avoiding tilting, etc., effectively improving the fixing accuracy of the workpiece, saving time and improving efficiency.

[0053] The chuck correction fixture of the present application has a simple structure and is easy to process and form, and can quickly correct the multi-jointed chuck 1, effectively improving the uniformity of the multi-jointed chuck 1, thereby improving the correction efficiency. The bottom of the supporting member that is actually used to support the workpiece can be provided with a plug-in member according to the rivet 5 of the chuck correction fixture to ensure consistency with the correction state, thereby improving the accuracy of the fixed posture of the workpiece fixed on the chuck 1.

[0054] For the structure of the pull nail 5, in one embodiment of the present application, please refer to Figure 5 and Figure 6Each rivet 5 includes a base 51 , an extension shaft 52 and a buckle cap 53 which are connected in sequence. The base 51 is fixed on the second end surface 32 of the base plate 3 , and the buckle cap 53 is arranged at the extension end of the extension shaft 52 .

[0055] In this embodiment, the outer diameter of the extension shaft 52 is smaller than the inner diameters of the buckle cap 53 and the base 51 , so that the middle portion of the entire rivet 5 forms a concave ring structure.

[0056] When the rivet 5 is inserted into the chuck 1, the movable claws 11 in the chuck 1 move radially closer and clamp on the extension shaft 52, and the buckle cap 53 is placed outside the movable claws 11. This clamping method is conducive to keeping the carrier on the rivet 5, such as the substrate 3 or the actual supporting member, stably fixed on the chuck 1 and effectively preventing the rivet 5 from falling out.

[0057] Thus, the inserting part at the bottom of the supporting member, such as a supporting tray, which is actually used to install the workpiece can be set to a structure of a rivet 5 to ensure that it is consistent with the setting state after the chuck is calibrated.

[0058] Preferably, the pull pin 5 can be perpendicular to the second end surface 32 of the base plate 3 , so that when the pull pin 5 is fixed on the chuck 1 , the base plate 3 can be in a horizontal state.

[0059] In one embodiment of the present application, since the pin 5 is inserted into the chuck 1 and clamped and fixed by the movable claw 11 inside the chuck 1 with high precision, if there are impurities such as dust particles on the outer surface of the pin 5, the precision of the movable claw 11 clamping the pin 5 will be affected. Figure 7 A plurality of placement holes 321 for inserting the support body are also provided on the second end surface 32 of the substrate 3. The plurality of placement holes 321 are respectively arranged close to the corners of the substrate 3 so that the placement holes 321 are away from the rivets 5 in the middle of the substrate 3 and avoid the position of the chuck 1 at the same time.

[0060] In this way, a placement rack (not shown) can be set up to place the entire substrate 3 on the surface of a placement carrier such as a desktop, a locker, etc., so that the rivets 5 at the bottom of the substrate 3 do not contact the surface of the placement carrier, avoiding impurities such as dust or sand on the surface of the rivets 5 that may affect the correction accuracy of the chuck 1.

[0061] As an example, it can be understood that the placement rack has the same number of support columns as the placement holes 321 on the base plate 3, and each support column corresponds to the position of each placement hole 321. The height of the placement rack is greater than the extension length of the rivet 5, so that the rivet 5 is away from the surface of the placement carrier, such as the inner bottom surface of the placement cabinet or the desktop of the placement table.

[0062] Preferably, each placement hole 321 is a trapezoidal hole that gradually narrows from the hole mouth to the hole bottom, so that when the chuck correction fixture is transferred to the placement rack, each support column on the placement rack is respectively inserted into each placement hole 321 for automatic positioning, effectively ensuring the stability of the chuck correction fixture when it is placed.

[0063] In the examples of this application, please refer to Figure 8 The calibration block 4 is provided with a reference hole 41 for calibrating the center point between the multiple chucks 1. The reference hole 41 is opened at the center of the calibration block 4 so as to set the midpoint of the support body of the workpiece. The support body that actually supports the workpiece can set the center point with the reference hole 41 on the calibration block 4, which is conducive to ensuring the balance of the workpiece placed on the support body.

[0064] Preferably, in this embodiment, if Figure 8 As shown, the correction block 4 is preferably a long square bar, and one side of the correction block 4 has a calibration flange 42 extending along its length direction. The calibration flange 42 is used to calibrate the horizontal rotation degree, that is, the calibration flange 42 can be used to accurately calibrate the horizontal orientation angle of the workpiece when it is placed on the chuck 1.

[0065] In this embodiment, if Figure 5 and Figure 8 As shown, the correction block 4 is fixed to the first end surface 31 of the substrate 3 by a plurality of fixing screws, and these fixing screws are evenly arranged on the correction block 4 along the length direction of the correction block 4 so that the correction block 4 can be fixed flatly and tightly on the first end surface 31.

[0066] In the examples of this application, please refer to Figure 8 The periphery of the substrate 3 is preferably provided with a groove 33 for the extraction tool to be inserted into. The groove 33 is arranged around the periphery of the substrate 3 so that the clamping part on the extraction tool can be inserted into the groove 33 for connection and fixation, making it convenient for people to manually transfer the position of the chuck correction fixture through the extraction tool.

[0067] In this embodiment, the extraction tool (not shown) can be a fork body or extraction frame with a C-shaped opening, and the C-shaped frame is inserted into the groove rail 33 on the outer periphery of the substrate 3 to achieve connection and fixation, and then the extraction tool is manually operated to transfer the position of the chuck correction fixture, thereby realizing contactless position transfer operation of the chuck correction fixture.

[0068] In one embodiment of the present application, please refer to Figure 5 and Fig. 9 The present application also provides a workpiece fixing device, including a chuck seat 2, a manipulator 6, a tray (not shown) and the above-mentioned chuck correction fixture 100.

[0069] The chuck seat 2 is used to be arranged on a processing machine tool, and a plurality of chucks 1 are arranged on the chuck seat 2. In this embodiment, the chuck seat 2 has two adjacent chucks 1, and each chuck 1 has a movable claw 11 inside for clamping an inserted object. It can be seen that the layout of the two chucks 1 is conducive to setting the horizontal orientation angle of the clamped workpiece in a straight line between two points.

[0070] The pallet is used as the supporting member to carry the workpiece. The workpiece can be loaded or fixed on the pallet according to production requirements, and then fixed on the chuck 1 through the pallet.

[0071] The bottom of the tray is provided with a pin (not shown) for inserting into the chuck 1 for fixing. The tray is arranged according to the flatness of the base plate 3 of the chuck correction fixture 100 , and the pin is consistent in shape with the pull pin 5 on the chuck correction fixture 100 .

[0072] The robot 6 is used to move the tray or the chuck calibration fixture 100 to the chuck seat 2 for simultaneously fixing multiple chucks 1 .

[0073] In this way, when calibrating a chuck 1, the robot 6 moves the chuck calibration fixture 100 to the chuck seat 2, allowing the pull pins 5 on the chuck calibration fixture 100 to be synchronously plugged into the corresponding chucks 1. At this time, combined with the calibration block 4 on the substrate 3, multiple chucks 1 are synchronously calibrated.

[0074] In actual processing operations, the robot 6 can move the pallet actually carrying the workpiece onto the chuck 1 so that the pins at the bottom of the pallet are plugged and fixed to the chuck 1 and actual processing is performed, thereby ensuring the accuracy of the actual workpiece being fixed on the chuck 1.

[0075] For the structure on the chuck seat 2, in one embodiment of the present application, please refer to Fig.10 The chuck seat 2 is provided with a plurality of mounting holes 21 for mounting fasteners, and the plurality of mounting holes 21 are arranged to avoid the chuck 1 on the chuck seat 2. Fasteners such as screws are installed on each mounting hole 21 to firmly mount the chuck seat 2 on the machine tool, effectively avoiding the chuck seat 2 on the machine tool from having an unstable condition such as partial floating.

[0076] Preferably, if Fig.10 As shown, every two adjacent mounting holes 21 among the plurality of mounting holes 21 form a group of mounting units 22 , and the plurality of groups of mounting units 22 are evenly distributed on the chuck seat 2 .

[0077] In this way, the mounting unit 22 composed of every two adjacent mounting holes 21 is conducive to adapting to machine tools of different specifications. For the installation and positioning of the chuck seat 2, it can be selected at a local position of the chuck seat 2 according to the hole layout on the machine tool, and fixed with the mounting holes 21 corresponding to the local position, thereby improving the installation adaptability.

[0078] Regarding the fixing structure of the chuck correction fixture 100 and the robot 6, in one embodiment of the present application, please refer to Fig. 9 , Fig.11 and Fig.12 (The figure shows a picking end on the manipulator 6 for connecting to the chuck correction fixture 100), a connecting end 7 for installation and connection with the manipulator 6 is provided on one side of the base plate 3 of the chuck correction fixture 100, and a connecting head 71 extending outward is provided on the connecting end 7.

[0079] The manipulator 6 is provided with a connecting portion 61, and the connecting portion 61 is provided with a clamping hole 62 and a clamping mechanism located inside the clamping hole 62. The connecting head 71 on the chuck correction fixture 100 can be inserted into the clamping hole 62 of the manipulator and clamped and fixed by the clamping mechanism. The clamping mechanism can be a radially close movable claw 11, or a clamping block clamped toward the middle on both sides. As long as the connecting head 71 inserted into the clamping hole 62 can be clamped and fixed, no specific limitation is made here.

[0080] In this way, the robot arm 6 can extract the entire chuck calibration fixture 100 and transfer the position by grasping the connecting head 71 on the chuck calibration fixture 100 .

[0081] In the embodiments of this application, please refer to Fig.11 and Fig.12 A limiting groove 72 for the manipulator 6 to be embedded in is also provided on the connection end 7 of the chuck correction fixture 100, and the connecting head 71 is arranged in the limiting groove 72 of the connection end 7, and the inner side of the limiting groove 72 is provided with guide ribs 73 arranged opposite to each other.

[0082] Guide holes 63 are provided on both sides of the connecting portion 61 of the manipulator 6. The shape of the guide holes 63 is adapted to the guide ribs 73 on the chuck correction fixture 100, and is plugged into and matched with the guide ribs 73 so that the entire connecting portion 61 can smoothly slide into the limiting groove 72 of the chuck correction fixture 100, thereby playing a role of automatic alignment and automatic guiding, allowing the manipulator 6 to smoothly and quickly pick up the chuck correction fixture 100 for position transfer operations.

[0083] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A chuck calibration jig, used for calibrating a multi-joint chuck; characterized in that: The chuck correction fixture includes a base plate having a first end face and a second end face opposite to each other, the first end face being provided with a correction block for measuring horizontality, the second end face being provided with a plurality of pull pins extending outward in parallel, the plurality of pull pins being used to be inserted into each chuck at the same time; the correction block and the plurality of pull pins are both arranged on the central axis of the base plate.

2. The chuck calibration fixture according to claim 1, characterized in that: Each of the rivets includes a base, an extension shaft and a buckle cap connected in sequence, the base is fixed on the second end face of the substrate, the buckle cap is arranged on the extension end of the extension shaft, and the outer diameter of the extension shaft is smaller than the inner diameter of the buckle cap and the base.

3. The chuck calibration fixture according to claim 1, characterized in that: The second end surface of the substrate is also provided with a plurality of placement holes for inserting the support body, and the plurality of placement holes are respectively arranged close to the corners of the substrate.

4. The chuck calibration fixture according to claim 1, characterized in that: The calibration block is provided with a reference hole for calibrating the center point between the multi-jointed chucks, and the reference hole is opened at the center of the calibration block.

5. The chuck calibration fixture according to claim 1, characterized in that: The outer periphery of the base plate is provided with a groove track for the extraction tool to be inserted into, and the groove track is arranged around the outer periphery of the base plate.

6. A workpiece fixing device, characterized in that: It comprises a chuck seat, a manipulator, a pallet and a chuck correction fixture as claimed in any one of claims 1 to 5, wherein the chuck seat is provided with a plurality of chucks, the interior of the chucks has movable claws for clamping inserted objects; the pallet is used to carry workpieces, the bottom of the pallet is provided with pins for inserting into the chucks for fixing, the pins are consistent in shape with the pull pins on the chuck correction fixture; the manipulator is used to move the pallet or the chuck correction fixture to the chuck seat for simultaneous fixing of the plurality of chucks.

7. The workpiece fixing device according to claim 6, characterized in that: The chuck seat is provided with a plurality of mounting holes for mounting fasteners, and the plurality of mounting holes are arranged to avoid the chuck on the chuck seat.

8. The workpiece fixing device according to claim 7, characterized in that: Every two adjacent mounting holes among the plurality of mounting holes form a group of mounting units, and the plurality of groups of mounting units are evenly distributed on the chuck seat.

9. The workpiece fixing device according to claim 6, characterized in that: A connecting end for being installed and connected to the manipulator is provided on one side of the base plate of the chuck correction fixture, and a connecting head extending outward is provided on the connecting end; a connecting portion is provided on the manipulator, and a clamping hole for the connecting head to extend into is provided on the connecting portion, and a clamping mechanism located inside the clamping hole is also provided on the manipulator.

10. The workpiece fixing device according to claim 9, characterized in that: The connection end is provided with a limiting groove for the manipulator to be embedded in, the connection head is arranged in the limiting groove of the connection end, and the inner side of the limiting groove is provided with guide ribs arranged opposite to each other; the connection part of the manipulator is provided with guide holes on both sides that are plugged into and cooperate with the guide ribs.

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