Retaining clamp

Abstract

The invention relates to a holding clamp, and relates to the technical field of clamping devices, a full-inspection table panel is fixed in the middle of a rack, and a feeding assembly, a material taking assembly, a supporting stand column assembly, a height detection assembly and a comprehensive detection assembly are arranged on the full-inspection table panel; an acting assembly is arranged on the supporting stand column and comprises a plurality of rails and sliding blocks, and a motor drives a connecting chain to achieve movement of the sliding blocks; the feeding assembly and the material taking assembly are respectively responsible for feeding and taking workpieces; the height detection assembly measures the height of the workpiece; the comprehensive detection assembly comprises a positioning stand column, a laser column, a rotary detection disc and the like, multi-dimensional detection such as aperture detection and laser engraving is carried out on a workpiece, and an illuminating lamp and a camera are arranged to ensure the detection precision. And the action table is connected through a second sliding block, a clamping mechanism driven by an air cylinder is arranged, the clamping mechanism comprises a spring, a clamping jaw, an auxiliary clamp and a clamping pad, the clamping requirements of different workpieces can be met, and in addition, a waste collecting and transporting device is further arranged.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping devices, and in particular to a holding clamp. Background Art

[0002] In the prior art, the design of holding fixtures often faces the problems of complex structure, numerous parts, easy wear and reduced clamping accuracy. Especially for some workpieces that require high-precision clamping and testing, traditional electric clamps or mechanical clamping devices are prone to increased clamping errors during use due to long-term wear and complexity of mechanical parts, affecting the processing quality and detection accuracy of the workpiece.

[0003] The comparative document CN116000964B discloses an electric clamp, which includes an X-axis clamp assembly, a Y-axis clamp assembly and a driving mechanism, an X-axis transmission mechanism and a Y-axis transmission mechanism; the driving mechanism is connected to the X-axis clamp assembly through the X-axis transmission mechanism, and the driving mechanism is connected to the Y-axis clamp assembly through the Y-axis transmission mechanism, and the X-axis and the Y-axis form an angle; the Y-axis transmission mechanism includes a cam and a cam contactor, the cam contactor is installed on the Y-axis clamp assembly, and the contact surface of the cam contactor and the cam is in contact with each other in the Y direction and is perpendicular to the rotation axis of the cam; the contact surface of the cam includes a plurality of arc surfaces, and the center of the arc surface coincides with the rotation axis of the cam; when the Y-axis clamp assembly clamps the workpiece, the cam contactor contacts the arc surface. The electric clamp provided by the present invention can realize asynchronous clamping in two directions, and can reduce the precision requirements for the consistency of the clamped workpiece.

[0004] In the above-mentioned actual use process, the electric clamp structure is relatively complex and has many parts, and the cam will wear out after long-term use, resulting in increasing clamping errors, affecting the clamping accuracy and stability. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art and provides a holding clamp. The first clamping groove and the second clamping groove are opened on the lower end surface of the cylinder. The first clamping block slides toward the first clamping groove but is not completely clamped in the first clamping groove. At this time, the corresponding clamping jaw clamps the workpiece and performs preliminary clamping on the workpiece to prevent displacement during the clamping process. The cylinder moves a distance toward the workpiece. At this time, the second clamping block also slides completely into the second clamping groove, and the other two clamping jaws clamp the workpiece. The structure is compact and can realize asynchronous clamping of the workpiece. The clamping jaw clamps the workpiece through the elastic force of the spring, and the elastic force of the spring can compensate for the wear error during long-term use.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a holding fixture, including a frame, a full inspection desktop, a feeding assembly, a material picking assembly, a height detection assembly, a workpiece, an action assembly and a full inspection assembly; the middle part of the frame is fixedly connected to the full inspection desktop, and the full inspection desktop is also provided with a feeding assembly, a material picking assembly, a support column, a height detection assembly and a full inspection assembly; The full inspection table top is also fixedly connected with four supporting columns, and the supporting columns are arranged at the four corners of a rectangle; the supporting columns are provided with an action component; the action component includes a first track, a second track, a first sliding block, a third track and a second sliding block; Two ends of the first track are fixedly connected to two of the supporting columns, and two ends of the second track are fixedly connected to the other two supporting columns, and the first track and the second track are symmetrically arranged; One end of the first track is fixedly connected to a first motor, and an output end of the first motor is rotatably connected to a first connecting member; The first sliding block is slidably connected to the first rail and the third rail; two ends of the third rail are fixedly connected to the two first sliding blocks respectively; one side of one end of the third rail is fixedly connected to the first connecting plate, and the other side is fixedly connected to the second motor; The side end of the first track is slidably connected with a first connecting chain, one end of the first connecting chain is fixedly connected to the first motor, and the other end is fixedly connected to the first connecting plate; the output end of the second motor is fixedly connected with a second connecting member; the third track is slidably connected with the second sliding block; The other side end of the third track is slidably connected with a second connecting chain; one end of the second connecting chain is fixedly connected to the second connecting member, and the other end is fixedly connected to the second sliding block; The feeding assembly includes a feeding rail and a feeding rack, wherein six of the feeding racks are fixedly connected to the full inspection table top, and three of the feeding racks form a group, which are located at the lower end of the action assembly and close to the second track; The feeding rack is slidably connected to the feeding rail, and there are two feeding racks, and a plurality of placement holes are opened on the feeding rack; The material taking assembly includes a discharge rail and a discharge rack, wherein six of the discharge rails are fixedly connected to the full inspection table top, and three of the discharge rails form a group, which are located at the lower end of the action assembly and close to the first rail; The discharging rack is slidably connected to the discharging rail, and there are two discharging racks, and a plurality of placement holes are opened on the discharging rack; The full inspection table top is also fixedly connected with a first column, and faces the direction of the feeding rail, and the first column is an L-shaped structure; the top surface of the lower part of the first column is fixedly connected with a first fixed rail, and is fixedly connected with a first electric telescopic rod in the direction of the feeding rail; The output end of the first electric telescopic rod is fixedly connected to a first small slider, and the first small slider is slidably connected to the first fixed rail; the upper end of the first small slider is fixedly connected to a height detection loading piece, and the height detection loading piece is provided with a notch for placing the working table; A second electric telescopic rod is fixedly connected to the upper part of the other side end of the first column, a height detection positioning piece is fixedly connected to the output end of the second electric telescopic rod, and a height detection sleeve is fixedly connected to the lower end of the height detection positioning piece; The bottom of the height detection sleeve is provided with a circular groove, and the size of the circular groove is equal to the diameter of the end of the working table; The comprehensive detection assembly includes a positioning column, a laser column, a rotating detection disk, a first fixed column, a second column, a third column, a positioning column, a second fixed column and an evaluation camera; The rotating inspection disk rotates on the full inspection table top, and a power motor for rotating the rotating inspection disk is provided at the lower end of the rotating inspection disk; six loading holes are opened around the center of the top of the rotating inspection disk; The first fixed column is fixedly connected to the full inspection tabletop around the center of the rotating inspection disk and is close to the first column; The first fixing column is detachably connected to a first fixing piece by bolts and is arranged horizontally with the top surface of the rotating detection disk; the first fixing piece is also fixedly connected to a first illuminating lamp, one end of the first illuminating lamp is a hollow ring, and when the loading hole is directly below the first illuminating lamp, the first illuminating lamp can be concentric with the workpiece; the top of the first fixing column is fixedly connected to a second fixing piece, and the bottom of the second fixing piece is also fixedly connected to a detection camera, and is concentric with the first illuminating lamp; The second column is fixedly connected to the full inspection tabletop around the center of the rotating inspection disk and is close to the first fixed column; the top of the second column is fixedly connected to the limited position head, and the side end of the lower part of the second column is fixedly connected to the third electric telescopic rod; the output end of the third electric telescopic rod is fixedly connected to the first aperture detection platform, the top of the first aperture detection platform is fixedly connected to the first aperture detection piece, and the first aperture detection piece is provided with a conical detection block; and when the loading hole is directly above the first aperture detection piece, the first aperture detection piece can be concentric with the workpiece; The three positioning columns are fixedly connected to the full inspection table top and are close to the second column. The upper side ends of the three positioning columns are fixedly connected to a laser column, and the other end of the laser column is fixedly connected to a laser engraving machine. The third column is fixedly connected to the full inspection table top around the center of the rotating inspection disk and is close to the second column; the upper end of the third column facing the center of the rotating inspection disk is fixedly connected to a second fixed rail, and the second fixed rail is also slidably connected to a third sliding block; the third sliding block is fixedly connected to a second aperture detection platform, and the bottom of the second aperture detection platform is fixedly connected to a second aperture detection piece, and the bottom of the second aperture detection piece is provided with a conical detection block; and when the loading hole is directly below the second aperture detection piece, the second aperture detection piece can be concentric with the workpiece; A fourth electric telescopic rod is fixedly connected to the side end of the third column, and an output end of the fourth electric telescopic rod is fixedly connected to the side end of the second aperture detection platform by a bolt; The positioning column is fixedly connected to the full inspection tabletop around the center of the rotating inspection disk and is close to the third column; the side end of the positioning column is fixedly connected to the fifth electric telescopic rod; The positioning column further comprises a positioning clamp, one end of which is hinged to the top of the positioning column, and the other end of which is hinged to the output end of the fifth electric telescopic rod; The laser engraving machine is located on top of the positioning clamp, and when the loading hole is directly below the laser engraving machine, the laser engraving machine can be concentric with the workpiece; The second fixed column is fixedly connected to the full inspection tabletop around the center of the rotating inspection disk and is close to the positioning column; the second fixed column is fixedly connected to a second illuminator, and one end of the second illuminator is a hollow ring, and when the loading hole is directly below the second illuminator, the second illuminator can be concentric with the workpiece; the top of the second fixed column is fixedly connected to an evaluation camera, and the evaluation camera is concentric with the second illuminator; A vertical plate is fixedly connected to the full inspection table top, and the vertical plate is close to the second fixed column; One end of the vertical plate is fixedly connected to a third motor; a conveyor belt is provided inside the vertical plate, and the conveyor belt is driven to rotate by the third motor; one end of the vertical plate close to the third motor is fixedly connected to a waste collection box; The second sliding block also includes a connecting platform, a cylinder, an electric slider, a sliding track, an auxiliary platform, an auxiliary plate and a column; The connecting platform is a T-shaped structure, and a lower side end is fixedly connected to the other side end of the second sliding block; one end of the connecting platform is fixedly connected to two cylinders, and the two cylinders are symmetrically arranged; the other lower side end of the connecting platform is fixedly connected to two electric sliders, and they are symmetrically arranged; The electric slider is slidably connected to a sliding track; the sliding track is fixedly connected to the auxiliary platform; the auxiliary platform is an L-shaped structure, and a first through hole is opened at the bottom; The output end of the cylinder is fixedly connected with an auxiliary plate; the lower end of the auxiliary plate is provided with the column; The bottom of the auxiliary platform is fixedly connected to an action platform; The action platform is rectangular, and has four rectangular grooves at the lower end; the action platform also includes a spring, a clamping claw, a first auxiliary clamp, a second auxiliary clamp and a clamping pad; the action platform has a second through hole, the diameter of the second through hole is equal to that of the first through hole, and the second through hole is concentric with the first through hole; The lower end surface of the cylinder is provided with a first slot and a second slot; The first card slot is higher than the second card slot, and the length of the first card slot is greater than the length of the second card slot; The bottoms of the two symmetrical surfaces of the action table are provided with first sliding grooves; A first protrusion is provided at one side end of the first auxiliary clamp; a first clamping block is fixedly connected to the upper side end of the first protrusion; the first clamping block is slidably connected to the first clamping slot; a first limit block is fixedly connected to the other upper side end of the first protrusion; the first limit block is slidably connected in the first sliding slot; one end of the spring is fixedly connected to the rectangular slot, and the other end is fixedly connected to the first protrusion; A second limit block is provided at the bottom of the other two symmetrical surfaces of the working table; a second sliding groove is opened at the top of the second auxiliary clamp; a second protrusion is provided at one end of the second auxiliary clamp; and a second clamping block is fixedly connected to the lower end of the second protrusion; the second clamping block is slidably connected to the second clamping groove; the second limit block is slidably connected in the second sliding groove; the lower ends of the first auxiliary clamp and the second auxiliary clamp are fixedly connected to the clamping claws; and a clamping pad is fixedly connected to the clamping surface of the clamping claws.

[0007] Preferably, an extension rod is fixedly connected to the lower end of the auxiliary plate; an arc-shaped groove is opened in the upper outer cross-section of the column; a fixing groove is also opened at the top of the arc-shaped groove; an auxiliary groove is opened in the upper part of the column; an auxiliary column is fixedly connected to the lower side end of the auxiliary plate; an electromagnet is fixedly connected to the side end of the auxiliary column; a clamping piece is fixedly connected to the other side end of the auxiliary column; a positioning rod is fixedly connected to the clamping piece, and the connection between the clamping piece and the positioning rod is made of elastic material; the positioning rod is slidably connected to the arc-shaped groove; and the extension rod is slidably connected in the auxiliary groove.

[0008] Preferably, the outer cross-section of the cylinder is fixedly connected with an annular clamp around the center of the circle; the auxiliary plate is fixedly connected with a placement piece at the upper end around the center of the first through hole, and is a concave annular structure, and its position corresponds to the clamp; the clamp also includes a second airbag; the clamping pad is also divided into an extension pad; one end of the second airbag is fixedly connected to the clamping surface of the clamp, and the other end of the clamp is fixedly connected to one end of the second airbag; the first airbag is detachably connected to the placement piece; the placement piece also includes a connecting tube; one end of the connecting tube is detachably connected to the lower end of the placement piece, and the other end passes through the auxiliary plate, the working table, the second auxiliary clamp and the first auxiliary clamp to communicate with the second airbag.

[0009] Preferably, the first airbag is further divided into an extension bag.

[0010] The beneficial effects of the present invention are: By providing a feeding component and a picking component, the feeding and picking automation is realized; and the comprehensive detection component can detect the height, bottom hole diameter, and top hole diameter of the workpiece, and detect whether there is wear on the top of the workpiece through the detection camera, and whether the quality evaluation of the workpiece meets the standard through the evaluation camera, so as to realize the automation of product detection; the first card slot and the second card slot are opened on the lower end surface of the cylinder, and the first card block slides toward the first card slot, but is not completely stuck in the first card slot. At this time, the corresponding clamping jaw clamps the workpiece and performs preliminary clamping on the workpiece to prevent displacement during the clamping process. The cylinder moves a distance toward the direction of the workpiece, and at this time, the second card block also slides completely into the second card slot, and the other two clamping jaws clamp the workpiece. It has a compact structure, can realize asynchronous clamping of the workpiece, and the clamping jaw clamps the workpiece through the elastic force of the spring, and the elastic force of the spring can compensate for the beneficial effect of wear error during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a holding fixture; Figure 2 A schematic diagram of a top view structure of a holding fixture; Figure 3 A schematic diagram of the structure of the functional components of a holding fixture; Figure 4 A schematic diagram of the structure of a feeding assembly holding a clamp; Figure 5 A schematic diagram of the structure of a material taking component of a holding fixture; Figure 6 A schematic diagram of the structure of a height detection component for a holding fixture; Figure 7 A schematic diagram of the structure of a detection camera for holding a fixture; Figure 8A schematic structural diagram of a first aperture detection member of a holding fixture; Fig. 9 A schematic diagram of the structure of a second aperture detection platform for a holding fixture; Fig.10 A schematic diagram of the structure of a fourth electric telescopic rod for holding a clamp; Fig.11 A schematic diagram of the structure of an auxiliary table for holding a fixture; Fig.12 A schematic diagram of a first auxiliary clamp structure of a holding clamp; Fig.13 A schematic diagram of a second auxiliary clamp structure of a holding clamp; Fig.14 A schematic diagram of the workpiece top structure of a holding fixture; Fig.15 A schematic diagram of the workpiece bottom structure of a holding fixture.

[0012] Fig.16 A schematic diagram of the arc groove structure of a retaining fixture embodiment 2; Fig.17 A schematic diagram of the positioning rod structure of a retaining fixture embodiment 2; Fig.18 A schematic diagram of a clamp structure of a retaining fixture embodiment 3; Fig.19 A schematic diagram of the extension bag structure of a retaining clamp embodiment 4.

[0013] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 100, rack, 110, full inspection table top, 120, feeding assembly, 121, feeding rail, 122, feeding rack, 130, picking assembly, 131, discharging rail, 132, discharging rack, 140, supporting column, 150, height detection assembly, 151, first column, 152, first fixed rail, 153, first electric telescopic rod, 154, first small slider, 155, height detection loading part, 156, second electric telescopic rod, 157, height detection positioning part, 158, height detection sleeve, 160, workpiece, 200, action assembly, 210, first rail, 211, first motor, 212, first connecting part, 213, first connecting chain, 220, second rail, 230, first sliding block, 231, first connecting plate, 232, second connecting piece, 233, second motor, 234, second connecting chain, 240, third track, 250, second sliding block, 251, connecting table, 252, cylinder, 253, electric slider, 254, sliding track, 255, auxiliary table, 256, auxiliary plate, 2561, first through hole, 257, cylinder, 2571, first card slot, 2572, second card slot, 2573, arc slot, 2574, auxiliary slot, 2575, fixed slot, 258, extension rod, 300, comprehensive detection component, 301, positioning column, 310, laser column, 311, laser engraving machine, 320, rotating detection disk, 321, loading hole, 3 30, first fixed column, 331, first fixing part, 332, first lighting lamp, 333, second fixing part, 334, detection camera, 340, second column, 341, limit head, 342, third electric telescopic rod, 343, first aperture detection platform, 344, first aperture detection part, 350, third column, 351, second fixed rail, 352, third sliding block, 353, second aperture detection platform, 354, second aperture detection part, 355, fourth electric telescopic rod, 360, positioning column, 361, fifth electric telescopic rod, 362, positioning clamp, 370, second fixed column, 371, second lighting lamp, 372, evaluation camera, 381, vertical plate, 382, ​​third motor, 3 83, waste collection box, 400, working table, 401, second through hole, 402, rectangular groove, 403, first sliding groove, 404, second limiting block, 410, spring, 420, clamping claw, 430, first auxiliary clamp, 431, first protrusion, 432, first clamping block, 433, first limiting block, 440, second auxiliary clamp, 441, second sliding groove, 442, second protrusion, 443, second clamping block, 450, clamping pad, 451, extension pad, 460, auxiliary column, 461, electromagnet, 462, clamping piece, 463, positioning rod, 470, clamping piece, 471, placement piece, 472, first air bag, 4721, extension bag, 473, connecting tube, 474, second air bag. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0015] In the description of this application, 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 technical features indicated. 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, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0016] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0017] Example 1 See also Figures 1 to 15 The embodiment of the present invention provides a holding fixture, including a frame 100, a full inspection desktop panel 110, a feeding assembly 120, a picking assembly 130, a height detection assembly 150, a workpiece 160, an action assembly 200 and a comprehensive detection assembly 300; the full inspection desktop panel 110 is fixedly connected to the middle of the frame 100, and the full inspection desktop panel 110 is also provided with a feeding assembly 120, a picking assembly 130, a supporting column 140, a height detection assembly 150 and a comprehensive detection assembly 300; The full inspection table panel 110 is also fixedly connected with four supporting columns 140, and the supporting columns 140 are arranged at the four corners of a rectangle; the supporting columns 140 are provided with an action component 200; the action component 200 includes a first track 210, a second track 220, a first sliding block 230, a third track 240 and a second sliding block 250; The two ends of the first track 210 are fixedly connected to two of the support columns 140, and the two ends of the second track 220 are fixedly connected to the other two support columns 140. The first track 210 and the second track 220 are symmetrically arranged. One end of the first track 210 is fixedly connected to a first motor 211, and an output end of the first motor 211 is rotatably connected to a first connecting member 212; the first track 210 and the third track 240 are both slidably connected to the first sliding block 230; both ends of the third track 240 are fixedly connected to two first sliding blocks 230 respectively; One side of one end of the third rail 240 is fixedly connected to the first connecting plate 231, and the other side is fixedly connected to the second motor 233; The side end of the first track 210 is slidably connected with a first connecting chain 213, one end of the first connecting chain 213 is fixedly connected to the first motor 211, and the other end is fixedly connected to the first connecting plate 231; the output end of the second motor 233 is fixedly connected with a second connecting member 232; the third track 240 is slidably connected with the second sliding block 250; The other side end of the third track 240 is slidably connected with a second connecting chain 234; one end of the second connecting chain 234 is fixedly connected to the second connecting member 232, and the other end is fixedly connected to the second sliding block 250; The feeding assembly 120 includes a feeding rail 121 and a feeding rack 122, wherein six feeding racks 122 are fixedly connected to the full inspection table panel 110, and three feeding racks 122 form a group, which are located at the lower end of the action assembly 200 and close to the second track 220; The feeding rack 122 is slidably connected to the feeding rail 121, and there are two feeding racks 122, and a plurality of placement holes are opened on the feeding rack 122; The material taking assembly 130 includes a discharge rail 131 and a discharge rack 132, wherein six of the discharge rails 131 are fixedly connected to the full inspection table top 110, and three of the discharge rails 131 form a group, which are located at the lower end of the action assembly 200 and close to the first track 210; The discharging rack 132 is slidably connected to the discharging rail 131, and there are two discharging racks 132, and a plurality of placement holes are opened on the discharging rack 132; The full inspection table panel 110 is also fixedly connected to a first column 151, and faces the direction of the feeding rail 121, and the first column 151 is an L-shaped structure; the top surface of the lower part of the first column 151 is fixedly connected to a first fixed rail 152, and is fixedly connected to a first electric telescopic rod 153 in the direction of the feeding rail 121; The output end of the first electric telescopic rod 153 is fixedly connected to a first small slider 154, and the first small slider 154 is slidably connected to the first fixed rail 152; the upper end of the first small slider 154 is fixedly connected to a height detection loading member 155, and the height detection loading member 155 is provided with a notch for placing the working platform 400; A second electric telescopic rod 156 is fixedly connected to the upper portion of the other side end of the first column 151, a height detection positioning member 157 is fixedly connected to the output end of the second electric telescopic rod 156, and a height detection sleeve 158 is fixedly connected to the lower end of the height detection positioning member 157; The bottom of the height detection sleeve 158 is provided with a circular groove, and the size of the circular groove is equal to the diameter of the end of the working table 400; The comprehensive detection assembly 300 includes a positioning column 301, a laser column 310, a rotating detection disk 320, a first fixed column 330, a second column 340, a third column 350, a positioning column 360, a second fixed column 370 and an evaluation camera 372; The rotating inspection disk 320 rotates on the full inspection table 110, and a power motor for rotating the rotating inspection disk 320 is disposed at the lower end thereof; six loading holes 321 are opened around the center of the top of the rotating inspection disk 320; The first fixing column 330 is fixedly connected to the full inspection table top 110 around the center of the rotating inspection disk 320 and is close to the first column 151; the first fixing member 331 is detachably connected to the first fixing column 330 by bolts and is arranged horizontally with the top surface of the rotating inspection disk 320; the first fixing member 331 is also fixedly connected to a first lighting lamp 332, one end of the first lighting lamp 332 is a hollow ring, and when the loading hole 321 is directly below the first lighting lamp 332, the first lighting lamp 332 can be concentric with the workpiece 160; the top of the first fixing column 330 is fixedly connected to a second fixing member 333, and the bottom of the second fixing member 333 is also fixedly connected to a detection camera 334, and is concentric with the first lighting lamp 332; The second column 340 is fixedly connected to the full inspection table top 110 around the center of the rotating inspection disk 320 and is close to the first fixed column 330; the top of the second column 340 is fixedly connected to the limited position head 341, and the side end of the lower part of the second column 340 is fixedly connected to the third electric telescopic rod 342; the output end of the third electric telescopic rod 342 is fixedly connected to the first aperture detection platform 343, and the top of the first aperture detection platform 343 is fixedly connected to the first aperture detection member 344, and the first aperture detection member 344 has a conical detection block; and when the loading hole 321 is directly above the first aperture detection member 344, the first aperture detection member 344 can be concentric with the workpiece 160; The three positioning columns 301 are fixedly connected to the full inspection table top 110 and are close to the second column 340. The upper side ends of the three positioning columns 301 are fixedly connected to the laser column 310, and the other end of the laser column 310 is fixedly connected to the laser engraving machine 311. The third column 350 is fixedly connected to the full inspection table top 110 around the center of the rotating inspection disk 320 and is close to the second column 340; the upper end of the third column 350 facing the center of the rotating inspection disk 320 is fixedly connected to a second fixed rail 351, and the second fixed rail 351 is also slidably connected to a third sliding block 352; the third sliding block 352 is fixedly connected to a second aperture detection platform 353, and the bottom of the second aperture detection platform 353 is fixedly connected to a second aperture detection member 354, and the bottom of the second aperture detection member 354 is provided with a conical detection block; and when the loading hole 321 is directly below the second aperture detection member 354, the second aperture detection member 354 can be cocentric with the workpiece 160; The side end of the third column 350 is fixedly connected with a fourth electric telescopic rod 355, and the output end of the fourth electric telescopic rod 355 is fixedly connected to the side end of the second aperture detection platform 353 by bolts; The positioning column 360 is fixedly connected to the full inspection table top 110 around the center of the rotating inspection disk 320 and is close to the third column 350; the side end of the positioning column 360 is fixedly connected to the fifth electric telescopic rod 361; The positioning column 360 further includes a positioning clamp 362, one end of which is hinged to the top of the positioning column 360, and the other end of which is hinged to the output end of the fifth electric telescopic rod 361; The laser engraving machine 311 is located on top of the positioning clamp 362, and when the loading hole 321 is directly below the laser engraving machine 311, the laser engraving machine 311 can be concentric with the workpiece 160; The second fixed column 370 is fixedly connected to the full inspection table top 110 around the center of the rotating inspection disk 320 and is close to the positioning column 360; a second illuminating lamp 371 is fixedly connected to the second fixed column 370, and one end of the second illuminating lamp 371 is a hollow ring, and when the loading hole 321 is directly below the second illuminating lamp 371, the second illuminating lamp 371 can be concentric with the workpiece 160; an evaluation camera 372 is fixedly connected to the top of the second fixed column 370, and the evaluation camera 372 is concentric with the second illuminating lamp 371; The full inspection table panel 110 is fixedly connected with a vertical plate 381, and the vertical plate 381 is close to the second fixing column 370; One end of the vertical plate 381 is fixedly connected to a third motor 382; a conveyor belt is provided inside the vertical plate 381, and the conveyor belt is driven to rotate by the third motor 382; one end of the vertical plate 381 close to the third motor 382 is fixedly connected to a waste collection box 383; The second sliding block 250 further includes a connecting platform 251, a cylinder 252, an electric slider 253, a sliding track 254, an auxiliary platform 255, an auxiliary plate 256 and a cylinder 257; The connecting platform 251 is a T-shaped structure, and a lower side end is fixedly connected to the other side end of the second sliding block 250; one end of the connecting platform 251 is fixedly connected to two cylinders 252, and the two cylinders 252 are symmetrically arranged; the other lower side end of the connecting platform 251 is fixedly connected to two electric sliders 253, and they are symmetrically arranged; The electric slider 253 is slidably connected to a sliding track 254; the sliding track 254 is fixedly connected to the auxiliary platform 255; the auxiliary platform 255 is an L-shaped structure, and a first through hole 2561 is opened at the bottom; The output end of the cylinder 252 is fixedly connected with an auxiliary plate 256; the lower end of the auxiliary plate 256 is provided with the cylinder 257; the bottom of the auxiliary table 255 is fixedly connected with an action table 400; The action platform 400 is rectangular, and has four rectangular grooves 402 at the lower end; the action platform 400 also includes a spring 410, a clamping claw 420, a first auxiliary clamp 430, a second auxiliary clamp 440 and a clamping pad 450; the action platform 400 has a second through hole 401, and the diameter of the second through hole 401 is equal to that of the first through hole 2561, and the two through holes are concentric; The lower end surface of the cylinder 257 is provided with a first slot 2571 and a second slot 2572; The first card slot 2571 is higher than the second card slot 2572, and the length of the first card slot 2571 is greater than the length of the second card slot 2572; The bottoms of the two symmetrical surfaces of the action platform 400 are provided with first sliding grooves 403; A first protrusion 431 is provided at one side end of the first auxiliary clamp 430; a first clamping block 432 is fixedly connected to the upper side end of the first protrusion 431; the first clamping block 432 is slidably connected to the first clamping slot 2571; The other upper side end of the first protrusion 431 is fixedly connected with a first limit block 433; the first limit block 433 is slidably connected in the first sliding groove 403; one end of the spring 410 is fixedly connected to the rectangular groove 402, and the other end is fixedly connected to the first protrusion 431; A second limit block 404 is provided at the bottom of the other two symmetrical surfaces of the working table 400; a second sliding groove 441 is opened at the top of the second auxiliary clamp 440; a second protrusion 442 is provided at one end of the second auxiliary clamp 440; and a second clamping block 443 is fixedly connected to the lower end of the second protrusion 442; the second clamping block 443 is slidably connected to the second clamping groove 2572; the second limit block 404 is slidably connected in the second sliding groove 441; the lower ends of the first auxiliary clamp 430 and the second auxiliary clamp 440 are both fixedly connected to the clamping claw 420; and a clamping pad 450 is fixedly connected to the clamping surface of the clamping claw 420.

[0018] Specific implementation: Place the workpiece 160 on the feeding rack 122, then start the first motor 211 and the second motor 233, respectively drive the first sliding block 230 and the second sliding block 250 to move on the first track 210 and the third track 240, and after moving to the position above the corresponding workpiece 160, start the cylinder 252 and the auxiliary table 255, so that the auxiliary plate 256 and the cylinder 257 move in the direction of the workpiece 160 to be clamped. At this time, the cylinder 252 and the auxiliary table 255 move synchronously. When the clamping jaws 420 reach the position above the workpiece 160, the cylinder 252 acts alone and moves a distance in the direction of the workpiece 160. First, the first clamping block 432 moves to the first clamping groove 257 1 slides, but is not completely stuck in the first slot 2571. At this time, the corresponding clamping jaw 420 clamps the workpiece 160 and performs preliminary clamping on the workpiece 160 to prevent displacement during the clamping process. The cylinder 252 moves a distance in the direction of the workpiece 160. At this time, the second clamping block 443 also slides completely into the second slot 2572, and the other two clamping jaws 420 clamp the workpiece 160; that is, the workpiece 160 is clamped. Then the cylinder 252 and the auxiliary table 255 act simultaneously to clamp the clamped workpiece 160 out of the feeding rack 122 and place it in the notch of the height detection loading member 155; the first electric telescopic rod 153 is started to push the first small slide block 154 to the height The height detection sleeve 158 is directly below the detection sleeve 158. At this time, the height detection sleeve 158 is concentric with the workpiece 160. The second electric telescopic rod 156 is started to drive the height detection positioning member 157 and the height detection sleeve 158 to move downward in the direction of the workpiece 160 to detect the height of the workpiece 160. After the detection is completed, the second electric telescopic rod 156 drives the height detection positioning member 157 and the height detection sleeve 158 to move upward, and the workpiece 160 is clamped into the loading hole 321 of the rotating detection disk 320 through the action component 200. The action component 200 repeats the above steps to realize uninterrupted detection of the workpiece 160; the rotating detection disk 320 is driven by the power motor to rotate clockwise to the first The workpiece 160 is directly below the lighting lamp 332, so that the workpiece 160 is concentric with the first lighting lamp 332, and the upper surface of the workpiece 160 is photographed and inspected by the inspection camera 334. After the inspection is completed, the rotating inspection disk 320 drives the workpiece 160 to rotate to the next link. At this time, the workpiece 160 is concentric with the first aperture detection member 344, and the third electric telescopic rod 342 is started to drive the first aperture detection platform 343 and the first aperture detection member 344 to move upward in the direction of the workpiece 160, and the conical detection block of the first aperture detection member 344 detects the conical hole below the workpiece 160; after the inspection is completed, the third electric telescopic rod 342 drives the first aperture detection platform 343 and the first aperture detection member 344 to move downward;The rotating detection disk 320 drives the workpiece 160 to rotate to the next link. At this time, the workpiece 160 is concentric with the second aperture detection member 354. The fourth electric telescopic rod 355 is started to drive the third sliding block 352, the second aperture detection platform 353 and the second aperture detection member 354 to move downward in the direction of the workpiece 160. At this time, the conical detection block of the second aperture detection member 354 detects the conical hole at the top of the workpiece 160. After the detection is completed, the fourth electric telescopic rod 355 drives the third sliding block 352, the second aperture detection platform 353 and the second aperture detection member 354 to move upward; the rotating detection disk 320 drives the workpiece 160 to rotate to the next link. At this time, the workpiece 160 is concentric with the laser engraving machine 311. The fifth electric telescopic rod 361 is started to drive the positioning clamp 362 Clamp the workpiece 160, then start the laser engraving machine 311 to laser engrave the number on the top of the workpiece 160. After the engraving is completed, turn off the laser engraving machine 311, and the fifth electric telescopic rod 361 drives the positioning clamp 362 to tighten the workpiece 160; the rotating detection disk 320 drives the workpiece 160 to rotate to the next link. At this time, the workpiece 160 is concentric with the second lighting lamp 371, and the second lighting lamp 371 illuminates the top of the workpiece 160. The evaluation camera 372 evaluates whether the workpiece 160 is a qualified workpiece. When the workpiece 160 is unqualified, the action component 200 clamps it into the vertical plate 381 and transports it to the waste collection box 383 through the conveyor belt; when the workpiece 160 is qualified, the action component 200 clamps it into the discharge rack 132. ;

[0019] Example 2 In order to prevent the device from suddenly losing power, causing the clamping jaws 420 to not clamp tightly, resulting in the workpiece 160 falling and being damaged, the cylinder 257 is improved; See also Fig.16 and Fig.17 , the embodiment of the present invention provides a holding fixture, wherein the lower end of the auxiliary plate 256 is fixedly connected with an extension rod 258; The upper outer cross section of the cylinder 257 is provided with an arc-shaped groove 2573; The top of the arc-shaped groove 2573 is also provided with a fixing groove 2575; An auxiliary groove 2574 is formed in the upper portion of the cylinder 257; An auxiliary column 460 is fixedly connected to a lower side end of the auxiliary plate 256; an electromagnet 461 is fixedly connected to a side end of the auxiliary column 460; a clamping member 462 is fixedly connected to the other side end of the auxiliary column 460; a positioning rod 463 is fixedly connected to the clamping member 462, and the connection between the clamping member 462 and the positioning rod 463 is made of elastic material; the positioning rod 463 is slidably connected to the arc groove 2573; The extension rod 258 is slidably connected in the auxiliary groove 2574 .

[0020] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: When the device is powered on and running normally, the electromagnet 461 is energized to generate a repulsive force on the positioning rod 463, so that the positioning rod 463 is stuck in the fixed groove 2575, that is, the top of the column 257 is tightly attached to the bottom of the extension rod 258; when the device is powered off, the electromagnet 461 no longer has a repulsive force on the positioning rod 463, and the positioning rod 463 is pulled out of the fixed groove 2575 by the elastic force of the clamping member 462. Under the action of the positioning rod 463 and the arc groove 2573, the column 257 rotates downward and clamps with the first sliding groove 403 and the second clamping block 443, thereby preventing the workpiece 160 from falling off; this effectively solves the technical problem that the device is suddenly powered off and the clamping jaws 420 are not clamped tightly, resulting in the workpiece 160 falling and being damaged.

[0021] Example 3 Due to the wear of the clamping pad 450 caused by long-term use, the clamping jaw 420 does not clamp the workpiece 160 tightly, so the cylinder 257, the auxiliary plate 256, the clamping jaw 420 and the clamping pad 450 are improved; See also Fig.18 , the embodiment of the present invention provides a retaining fixture, wherein the outer cross section of the cylinder 257 is fixedly connected with an annular clamp 470 around the center of the circle; The auxiliary plate 256 is fixedly connected with a placement piece 471 around the center of the first through hole 2561, and is a concave annular structure, and its position corresponds to the clamping piece 470; The clamping jaw 420 also includes a second air bag 474; The clamping pad 450 is further divided into an extension pad 451; One end of the second airbag 474 is fixedly connected to the clamping surface of the clamping jaw 420, and the other end of the clamping jaw 420 is fixedly connected to one end of the second airbag 474; The first airbag 472 is detachably connected to the placement piece 471; The placement member 471 also includes a connecting pipe 473; One end of the connecting tube 473 is detachably connected to the lower end of the placing member 471 , and the other end passes through the auxiliary plate 256 , the working platform 400 , the second auxiliary clamp 440 , and the first auxiliary clamp 430 to communicate with the second airbag 474 .

[0022] Specific implementation process: first, fill the first airbag 472 with a proper amount of gas, connect it to the connecting tube 473, and then place it in the placement piece; when the workpiece needs to be clamped, the cylinder 257 drives the clamping piece 470 to move into the placement piece 471, and when the clamping piece 470 contacts and squeezes the first airbag 472, the gas in the first airbag 472 will pass through the connecting tube 473 to the second airbag 474, and the second airbag 474 will expand and squeeze the extension pad 451. At this time, the extrusion force exerted on the extension pad 451 can clamp the workpiece 160.

[0023] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: It can compensate for the distance between the clamping pad 450 and the workpiece 160 after wear, and can adjust the gas capacity in the first airbag 472. Filling an appropriate amount of gas can make the extension pad 451 clamp the workpiece 160 more tightly; it effectively solves the technical problem that the clamping pad 450 wears out due to long-term use, making the clamping jaws 420 not clamp the workpiece 160 tightly.

[0024] Example 4 Since the first airbag 472 is directly squeezed, the gas inside it flows to the second airbag 474 too quickly, causing the workpiece 160 to shift position, so the first airbag 472 is improved; See also Fig.19 , an embodiment of the present invention provides a retaining clamp, wherein the first airbag 472 is further divided into an extension bag 4721.

[0025] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Beneficial effect: By providing an extension bag 4721 at the upper end of the first air bag 472, the downward pressure of the clamp 470 can be slowed down by the resistance of the extension bag 4721 during the downward pressure process, and the wear of the cylinder 257 and the first block 432 and the second block 443 can be reduced; the technical problem of directly squeezing the first air bag 472, causing the internal gas to flow to the second air bag 474 too quickly, causing the workpiece 160 to shift in position is effectively solved.

[0026] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A holding fixture, characterized in that: The machine comprises a frame (100), a full inspection desktop panel (110), a material feeding assembly (120), a material picking assembly (130), a height detection assembly (150), a workpiece (160), an action assembly (200) and a full inspection assembly (300); the full inspection desktop panel (110) is fixedly connected to the middle of the frame (100); the material feeding assembly (120), the material picking assembly (130), a support column (140), a height detection assembly (150) and a full inspection assembly (300) are also arranged on the full inspection desktop panel (110); four support columns (140) are also fixedly connected to the full inspection desktop panel (110), and are arranged at the four corners of a rectangle; The supporting column (140) is provided with an action component (200); the action component (200) comprises a first track (210), a second track (220), a first sliding block (230), a third track (240) and a second sliding block (250); two ends of the first track (210) are fixedly connected to two of the supporting columns (140), and two ends of the second track (220) are fixedly connected to the other two supporting columns (140); the first track (210) and the second track (220) are symmetrically arranged; One end of the first track (210) is fixedly connected to a first motor (211), and an output end of the first motor (211) is rotatably connected to a first connecting member (212); the first track (210) and the third track (240) are both slidably connected to the first sliding block (230); two ends of the third track (240) are respectively fixedly connected to two first sliding blocks (230); one side of one end of the third track (240) is fixedly connected to a first connecting plate (231), and the other side is fixedly connected to a second motor (233); The side end of the first track (210) is slidably connected to a first connecting chain (213), one end of the first connecting chain (213) is fixedly connected to the first motor (211), and the other end is fixedly connected to the first connecting plate (231); the output end of the second motor (233) is fixedly connected to a second connecting piece (232); the third track (240) is slidably connected to the second sliding block (250); the other side end of the third track (240) is slidably connected to a second connecting chain (234); one end of the second connecting chain (234) is fixedly connected to the second connecting piece (232), and the other end is fixedly connected to the second sliding block (250); the feeding assembly (120) comprises a feeding rail (121) and a feeding rack (122), wherein six of the feeding racks (122) are fixedly connected to the feeding rail (121). On the full inspection desktop panel (110), three of the feeding racks (122) form a group, which are located at the lower end of the action component (200) and close to the second track (220); the feeding racks (122) are slidably connected to the feeding rail (121), and there are two feeding racks (122), and a plurality of placement holes are opened on the feeding rack (122); the material picking component (130) includes a discharge rail (131) and a discharge rack (132), wherein six of the discharge rails (131) are fixedly connected to the full inspection desktop panel (110), and three of the discharge rails (131) form a group, which are located at the lower end of the action component (200) and close to the first track (210); the discharge rack (132) is slidably connected to the discharge rail (131), and there are two discharge racks (132), and a plurality of placement holes are opened on the discharge rack (132).

2. A holding fixture as claimed in claim 1, characterized in that: The full inspection table top (110) is also fixedly connected to a first column (151) and faces the direction of the feeding rail (121), and the first column (151) is an L-shaped structure; the top surface of the lower part of the first column (151) is fixedly connected to a first fixed rail (152), and is fixedly connected to a first electric telescopic rod (153) in the direction of the feeding rail (121); the output end of the first electric telescopic rod (153) is fixedly connected to a first small slider (154), and the first small slider (154) is slidably connected to the first fixed rail (152); the upper end of the first small slider (154) is fixedly connected to a height detection loading piece (155), and the height detection loading piece (155) is provided with a notch for placing the working table (400); A second electric telescopic rod (156) is fixedly connected to the upper portion of the other side end of the first column (151); a height detection positioning member (157) is fixedly connected to the output end of the second electric telescopic rod (156); a height detection sleeve (158) is fixedly connected to the lower end of the height detection positioning member (157); a circular groove is formed at the bottom of the height detection sleeve (158), and the size of the circular groove is equal to the diameter of the end of the working table (400); the comprehensive detection assembly (300) comprises a positioning column (3 01), a laser column (310), a rotating detection disk (320), a first fixed column (330), a second column (340), a third column (350), a positioning column (360), a second fixed column (370) and an evaluation camera (372); the rotating detection disk (320) rotates on the full inspection table top (110), and a power motor for rotating the rotating detection disk (320) is provided at the lower end; six loading holes (321) are opened around the center of the top of the rotating detection disk (320).

3. A holding fixture as claimed in claim 2, characterized in that: The first fixing column (330) is fixedly connected to the full inspection table top (110) around the center of the rotating inspection disk (320) and is close to the first column (151); the first fixing member (331) is detachably connected to the first fixing column (330) by bolts and is arranged horizontally with the top surface of the rotating inspection disk (320); the first fixing member (331) is also fixedly connected to a first lighting lamp (332), one end of the first lighting lamp (332) is a hollow ring, and when the loading hole (321) is directly below the first lighting lamp (332), the first lighting lamp (332) can be concentric with the workpiece (160); the top of the first fixing column (330) is fixedly connected to a second fixing member (333), and the bottom of the second fixing member (333) is also fixedly connected to a detection camera (334) and is concentric with the first lighting lamp (332); The second column (340) is fixedly connected to the full inspection table top (110) around the center of the rotating inspection disk (320) and is close to the first fixed column (330); the top of the second column (340) is fixedly connected to a limit head (341), and the side end of the lower part of the second column (340) is fixedly connected to a third electric telescopic rod (342); the output end of the third electric telescopic rod (342) is fixedly connected to a first aperture detection platform (343), the top of the first aperture detection platform (343) is fixedly connected to a first aperture detection component (344), and the first aperture detection component (344) has a conical detection block; and when the loading hole (321) is directly above the first aperture detection component (344), the first aperture detection component (344) can be concentric with the workpiece (160).

4. A holding fixture as claimed in claim 3, characterized in that: The three positioning columns (301) are fixedly connected to the full inspection desktop panel (110) and are close to the second column (340); the upper side ends of the three positioning columns (301) are fixedly connected to the laser column (310); the other end of the laser column (310) is fixedly connected to the laser engraving machine (311); the third column (350) is fixedly connected to the full inspection desktop panel (110) around the center of the rotating inspection disk (320) and is close to the second column (340); the upper end of the third column (350) facing the center of the rotating inspection disk (320) is fixedly connected to the second fixed rail (351), and the second fixed rail (351) is also slidably connected to a third sliding block (352); The third sliding block (352) is fixedly connected to a second aperture detection platform (353); the bottom of the second aperture detection platform (353) is fixedly connected to a second aperture detection member (354); the bottom of the second aperture detection member (354) is provided with a conical detection block; and when the loading hole (321) is directly below the second aperture detection member (354), the second aperture detection member (354) can be cocentric with the workpiece (160); the side end of the third column (350) is fixedly connected to a fourth electric telescopic rod (355); the output end of the fourth electric telescopic rod (355) is fixedly connected to the side end of the second aperture detection platform (353) by means of bolts; The positioning column (360) is fixedly connected to the full inspection table top (110) around the center of the rotating inspection disk (320) and is close to the third column (350); the side end of the positioning column (360) is fixedly connected to the fifth electric telescopic rod (361); the positioning column also includes a positioning clamp (362), one end of the positioning clamp (362) is hinged to the top of the positioning column (360), and the other end is hinged to the output end of the fifth electric telescopic rod (361); the laser engraving machine (311) is located on the top of the positioning clamp (362), and when the loading hole (321) is directly below the laser engraving machine (311), the laser engraving machine (311) can be coaxial with the workpiece (160).

5. A holding fixture as claimed in claim 4, characterized in that: The second fixed column (370) is fixedly connected to the full inspection table top (110) around the center of the rotating inspection disk (320) and is close to the positioning column (360); the second fixed column (370) is fixedly connected to a second illuminating lamp (371), and one end of the second illuminating lamp (371) is a hollow ring, and when the loading hole (321) is directly below the second illuminating lamp (371), the second illuminating lamp (371) can be coaxial with the workpiece (160); the top of the second fixed column (370) is fixedly connected to an evaluation camera. The evaluation camera (372) is cocentric with the second lighting lamp (371); a vertical plate (381) is fixedly connected to the full inspection desktop panel (110), and the vertical plate (381) is close to the second fixed column (370); one end of the vertical plate (381) is fixedly connected to a third motor (382); a conveyor belt is provided inside the vertical plate (381), and the conveyor belt is driven to rotate by the third motor (382); and one end of the vertical plate (381) close to the third motor (382) is fixedly connected to a waste collection box (383).

6. A holding fixture as claimed in claim 5, characterized in that: The second sliding block (250) further comprises a connecting platform (251), a cylinder (252), an electric slider (253), a sliding track (254), an auxiliary platform (255), an auxiliary plate (256) and a column (257); the connecting platform (251) is a T-shaped structure, and a lower side end is fixedly connected to the other side end of the second sliding block (250); one end of the connecting platform (251) is fixedly connected to two of the cylinders (252), and the two cylinders (252) are symmetrically arranged; the other lower side end of the connecting platform (251) is fixedly connected to two of the electric sliders (253), and the two cylinders (252) are symmetrically arranged; the electric slider (253) is slidably connected to a sliding track (254); the sliding track (254) is fixedly connected to the auxiliary platform (255); the auxiliary platform (255) is an L-shaped structure, and a first through hole (2561) is opened at the bottom; The output end of the cylinder (252) is fixedly connected to an auxiliary plate (256); the lower end of the auxiliary plate (256) is provided with the column (257); the bottom of the auxiliary table (255) is fixedly connected to an action table (400); the action table (400) is rectangular and has four rectangular grooves (402) at the lower end; the action table (400) further comprises a spring (410), a clamping claw (420), a first auxiliary clamp (430), a second auxiliary clamp (440) and a clamping The working platform (400) is provided with a second through hole (401), the diameter of the second through hole (401) is equal to that of the first through hole (2561), and the two through holes are concentric with each other; the lower end surface of the cylinder (257) is provided with a first card slot (2571) and a second card slot (2572); the first card slot (2571) is higher than the second card slot (2572), and the length of the first card slot (2571) is greater than the length of the second card slot (2572).

7. A holding fixture as claimed in claim 6, characterized in that: A first sliding groove (403) is formed at the bottom of the two symmetrical surfaces of the action table (400); a first protrusion (431) is provided at one side end of the first auxiliary clamp (430); a first clamping block (432) is fixedly connected to the upper side end of the first protrusion (431); the first clamping block (432) is slidably connected to the first clamping groove (2571); a first limit block (433) is fixedly connected to the other upper side end of the first protrusion (431); the first limit block (433) is slidably connected in the first sliding groove (403); one end of the spring (410) is fixedly connected to the rectangular groove (402), and the other end is fixedly connected to the first protrusion (431); A second limiting block (404) is provided at the bottom of the other two symmetrical surfaces of the working table (400); a second sliding groove (441) is provided at the top of the second auxiliary clamp (440); a second protrusion (442) is provided at one end of the second auxiliary clamp (440); and a second clamping block (443) is fixedly connected to the lower end of the second protrusion (442); the second clamping block (443) is slidably connected to the second clamping groove (2572); the second limiting block (404) is slidably connected in the second sliding groove (441); the lower ends of the first auxiliary clamp (430) and the second auxiliary clamp (440) are both fixedly connected to the clamping claw (420); and a clamping pad (450) is fixedly connected to the clamping surface of the clamping claw (420).

8. A holding fixture as claimed in claim 7, characterized in that: The lower end of the auxiliary plate (256) is fixedly connected to an extension rod (258); an arc-shaped groove (2573) is formed in the upper outer cross-section of the column (257); a fixing groove (2575) is formed at the top of the arc-shaped groove (2573); an auxiliary groove (2574) is formed in the upper part of the column (257); an auxiliary column (460) is fixedly connected to a lower side end of the auxiliary plate (256); an electromagnet (461) is fixedly connected to the side end of the auxiliary column (460); a clamping member (462) is fixedly connected to the other side end of the auxiliary column (460); a positioning rod (463) is fixedly connected to the clamping member (462), and the connection between the clamping member (462) and the positioning rod (463) is made of elastic material; the positioning rod (463) is slidably connected to the arc-shaped groove (2573); and the extension rod (258) is slidably connected to the auxiliary groove (2574).

9. A holding fixture as claimed in claim 8, characterized in that: The outer cross section of the cylinder (257) is fixedly connected to a ring-shaped clamp (470) around the center of the circle; the auxiliary plate (256) is fixedly connected to a placement piece (471) around the center of the first through hole (2561) at the upper end thereof, and is a concave ring-shaped structure, and its position corresponds to the clamp (470); the clamp (420) further includes a second airbag (474); the clamping pad (450) is further divided into an extension pad (451); one end of the second airbag (474) is fixedly connected to the clamping surface of the clamp (420), and the The other end of the clamping claw (420) is fixedly connected to one end of the second airbag (474); the first airbag (472) is detachably connected inside the placement piece (471); the placement piece (471) further comprises a connecting tube (473); one end of the connecting tube (473) is detachably connected to the lower end of the placement piece (471), and the other end passes through the auxiliary plate (256), the working table (400), the second auxiliary clamp (440) and the first auxiliary clamp (430) to communicate with the second airbag (474).

10. A holding fixture as claimed in claim 9, characterized in that: The first airbag (472) is further divided into an extension bag (4721).

Images