Machining center positioning tool clamp

Abstract

The invention provides a machining center positioning tool clamp which comprises a machining platform and further comprises multiple sets of platform side plates fixedly connected to the outer side of the machining platform, the multiple sets of platform side plates are distributed on the outer side of the machining platform in a rectangular shape, a bearing cross-shaped bottom plate is arranged at the bottom of the machining platform, and a driving mechanism is arranged at the top of the bearing cross-shaped bottom plate. A positioning cross-shaped bottom plate is fixedly connected to the top of the machining platform, an electromagnetic positioning mechanism is arranged in a center groove of the positioning cross-shaped bottom plate, an L-shaped structural plate is arranged at the top of a platform side plate, a clamping mechanism is arranged at the top of the L-shaped structural plate, a locking mechanism is arranged on the outer side of the platform side plate, and a warning mechanism is arranged at the top of the L-shaped structural plate. According to the clamp, an acousto-optic warning device in the warning mechanism is triggered through deviation of the clamping assembly to remind deviation of a workpiece in different directions, the workpiece is driven to reset through an air cylinder in the deviation correcting mechanism, and therefore efficient and high-precision machining operation of the clamp is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fixtures, and in particular to a positioning fixture for a machining center. Background Art

[0002] A fixture is a process device used to quickly fasten the workpiece during processing so that the machine tool, tool and workpiece maintain the correct relative position. Driven by the development of machine tool technology towards high speed, high efficiency, precision, combination, intelligence and environmental protection, fixture technology is developing towards high precision, high efficiency, modularity, combination, universality and economy.

[0003] Chinese patent CN220944200U discloses a positioning fixture for a machining center, including a base for supporting the entire device and placing the workpiece; a plurality of clamping members, all slidably connected to the inside of the base, for clamping the workpiece; an adjusting member, one-to-one corresponding to the clamping member, all hinged to the clamping member, for automatic adjustment according to the shape of the workpiece; a control chassis, located inside the base, for providing power to the clamping member. The utility model achieves the effect of automatic clamping through the device, and adjusts according to the size and shape of the workpiece, with high adaptability and strong stability, so as to solve the problem that the fixture in the prior art cannot automatically clamp the workpiece and is inconvenient to automatically adjust according to the diameter and shape of the workpiece.

[0004] However, this technical solution may cause the workpiece to shift during machining due to the pressure of the machining equipment or the influence of external factors, and the existing fixture cannot remind the workpiece of the deviation during machining and does not have the function of correcting the deviation, which may easily lead to errors in the machining position of the workpiece and fail to meet the high-precision machining requirements. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a positioning fixture for a machining center, which realizes the offset warning and correction functions of the device through a warning structure and a correction structure, thereby solving the problem of being unable to remind the offset of the workpiece during machining and having no correction function.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning fixture for a machining center, comprising a machining platform, and also comprising a plurality of sets of platform side panels fixedly connected to the outside of the machining platform, wherein the plurality of platform side panels are distributed in a rectangular shape on the outside of the machining platform, and a platform column is fixedly connected to the bottom of the platform side panels, a load-bearing cross bottom plate is provided at the bottom of the machining platform, a driving mechanism is provided at the top of the load-bearing cross bottom plate, a positioning cross bottom plate is fixedly connected to the top of the machining platform, an electromagnetic positioning mechanism is provided in the central groove of the positioning cross bottom plate, and the platform side panels An L-shaped structural plate is provided on the top of the L-shaped structural plate, a clamping mechanism is provided on the top of the L-shaped structural plate, a locking mechanism is provided on the outer side of the platform side plate, a warning mechanism is provided on the top of the L-shaped structural plate, and a correction mechanism is provided on one side of the L-shaped structural plate; the clamping mechanism includes a movable seat plate movably connected to the top of the L-shaped structural plate, a driven rotating shaft is penetrated and connected to the top of the movable seat plate, a driven gear is fixedly connected to the bottom end of the driven rotating shaft, a driving bevel gear is fixedly connected to the top of the driven rotating shaft, a fixed vertical plate is fixedly connected to the top of the movable seat plate, and the fixed vertical plate The top is fixedly connected with a fixed support block, one side of the fixed support block is movably connected with a driven nut, the outer wall of the driven nut is fixedly connected with a driven bevel gear, the outer wall of the fixed support block is provided with a limiting rotation groove, one side of the fixed support block is threadedly connected with a movable screw rod, one side of the driven nut is provided with a threaded wall groove, one end of the movable screw rod is fixedly connected with a limiting edge block, one end of the movable screw rod is provided with a clamping slider, two groups of limiting slide bars are provided at the bottom of the movable seat plate, the two groups of limiting slide bars are symmetrically distributed at the bottom of the movable seat plate, and the L-shaped structural plate The outer wall is provided with two groups of limiting grooves, the two groups of limiting grooves are symmetrically distributed on the outer wall of the L-shaped structural plate, and the top of the L-shaped structural plate is provided with a rotating shaft groove; the locking mechanism comprises two groups of gear locking blocks movably connected to the outer side of the L-shaped structural plate, the two groups of gear locking blocks are symmetrically distributed on the outer side of the L-shaped structural plate, one side of the two groups of gear locking blocks is fixedly connected with a T-shaped slider, the top of the gear locking block is movably plugged with a locking bolt, and the top of the driven gear is provided with multiple groups of locking holes, and the multiple groups of locking holes are annularly distributed on the top of the driven gear;The warning mechanism comprises two groups of transverse rod seats installed on the inner sides of the side plates of the L-shaped structural plate, the two groups of transverse rod seats are symmetrically distributed on the inner sides of the side plates of the L-shaped structural plate, one end of the transverse rod seat is fixedly connected to a trigger sleeve, one side of the trigger sleeve is movably connected to a movable traction rod, the tail end of the movable traction rod is fixedly connected to a movable circular plate, one side of the movable circular plate is fixedly connected to a movable mounting seat, one side of the movable mounting seat is installed with a movable conductive block, one side of the movable mounting seat is penetrated by a movable conductive rod, the top of the movable conductive rod is provided with a wiring copper nose, the top of the wiring copper nose is installed with a power input line, the outer wall of the trigger sleeve is provided with a conductive rod sliding groove, the inner wall of the trigger sleeve is fixedly connected to a fixed circular plate, one side of the fixed circular plate is fixedly connected to a fixed mounting seat, one side of the fixed mounting seat is installed with a fixed conductive block, one side of the fixed mounting seat A fixed conductive rod is connected through it, and the top of the fixed conductive rod is installed with an equipment input line. A reset spring is installed between the movable circular plate and the fixed circular plate. Two groups of assembly circular plates are arranged on the outside of the side plate of the L-shaped structural plate. The two groups of assembly circular plates are symmetrically distributed on the outside of the side plate of the L-shaped structural plate. An indicator light is installed on one side of one group of assembly circular plates, and a buzzer alarm is installed on one side of the other group of assembly circular plates. The outsides of the indicator light and the buzzer alarm are both provided with wiring terminals, and the top of the wiring terminals is installed with an equipment output line. A traction rod limiting cover is provided at one end of the trigger sleeve; the deviation correction mechanism includes two groups of compression spring rods installed on the inner side of the side plate of the L-shaped structural plate, and the two groups of compression spring rods are symmetrically distributed on the inner side of the side plate of the L-shaped structural plate. A deviation correction cylinder is installed on the outer side of the side plate of the L-shaped structural plate, and a cylinder output rod is provided on one side of the deviation correction cylinder. ;

[0007] The driving mechanism includes a servo motor installed on the top of the load-bearing cross base plate, a motor output shaft is arranged on the top of the servo motor, a driving top bearing is fixedly connected to the bottom of the processing platform, a driving shaft is installed at the bottom of the driving top bearing, a driving gear is fixedly connected to the outer side of the driving shaft, a docking plate is arranged at one end of the motor output shaft and the driving shaft, a plurality of groups of docking bolts are threadedly connected to the bottom of the docking plate, and the plurality of groups of docking bolts are distributed in a ring shape at the bottom of the docking plate.

[0008] The electromagnetic positioning mechanism includes a accommodating groove provided at the top of the positioning cross bottom plate, an electromagnetic seat is installed inside the accommodating groove, an electromagnetic core is provided inside the electromagnetic seat, an electromagnet is provided on the top of the electromagnetic core, a plurality of groups of electromagnetic extension blocks are provided on the outside of the electromagnet, the plurality of groups of electromagnetic extension blocks are distributed in a ring shape on the outside of the electromagnet, an electromagnetic wire is wound around the outside of the electromagnetic core, and a threading hole is provided on the inner wall of the accommodating groove.

[0009] The clamping mechanism also includes a driven bearing fixedly connected to the top of the movable seat plate, and the driven bearing is internally movably connected with multiple groups of bearing balls, and the multiple groups of bearing balls are distributed in a ring shape inside the driven bearing.

[0010] The clamping mechanism also includes a V-shaped groove opened on one side of the clamping slider, an extended side block on one side of the clamping slider, a V-shaped damping pad is installed on the inner wall of the V-shaped groove, two groups of guide slides are arranged at the bottom of the clamping slider, and the two groups of guide slides are symmetrically distributed at the bottom of the clamping slider, and two groups of guide grooves are opened on the outer wall of the extended end of the positioning cross bottom plate, and the two groups of guide grooves are symmetrically distributed on the outer wall of the extended end of the positioning cross bottom plate.

[0011] The locking mechanism also includes two groups of T-shaped slots provided on the outer wall of the L-shaped structural plate, the two groups of T-shaped slots are symmetrically distributed on the outer wall of the L-shaped structural plate, and a lifting ring is provided on the top of the locking bolt.

[0012] The warning mechanism also includes two groups of copper nose locking edges arranged at the side opening of the wiring copper nose, the two groups of copper nose locking edges are symmetrically distributed at the side opening of the wiring copper nose, one side of the two groups of copper nose locking edges is threadedly connected with two groups of locking bolts, and the two groups of locking bolts are symmetrically distributed on one side of the two groups of copper nose locking edges.

[0013] The warning mechanism also includes a plurality of groups of limiting protrusions arranged on the outer wall of the movable circular plate, the plurality of groups of limiting protrusions are distributed in a ring shape on the outer wall of the movable circular plate, and the inner wall of the trigger sleeve is provided with a plurality of groups of limiting wall grooves, the plurality of groups of limiting wall grooves are distributed in a ring shape on the inner wall of the trigger sleeve.

[0014] The warning mechanism also includes a plurality of sets of assembly bolts which are threadedly connected to one side of the indicator light and the buzzer alarm base plate, and the plurality of sets of assembly bolts are distributed in a ring shape on one side of the indicator light and the buzzer alarm base plate.

[0015] The correcting mechanism also includes an output connecting block arranged at the tail end of the cylinder output rod, and the tail end of the cylinder output rod is fixedly connected to the movable seat plate through the output connecting block. One side of the correcting cylinder is threadedly connected with multiple groups of long mounting bolts, and the multiple groups of long mounting bolts are distributed in a rectangular shape on one side of the correcting cylinder.

[0016] The beneficial effects of the present invention are: (1) The present invention drives the driving gear to rotate through a servo motor, drives the multiple groups of driving bevel gears on the top of the driven shafts to rotate synchronously through the meshing of the driven gears and the driving gears on the multiple groups of driven shafts, and drives the driven nut to rotate on the fixed support block through the meshing of the driven bevel gears and the driving bevel gears on the driven nut. The driven nut is threadedly connected with the movable lead screw, thereby driving the movable lead screw to rotate and move to apply pressure to the clamping slide block, so that the multiple groups of clamping slide blocks approach the center of the positioning cross bottom plate in four directions and clamp and fix the workpiece. After clamping, the user can cut off the power of the servo motor to limit the rotation of the driving gear, and insert the locking plug into the corresponding locking hole on the driven gear to limit the driven gear and the clamping slide block, thereby realizing the clamping and fixing function of the clamp.

[0017] The locking member is then driven to move backwards, and the locking member is engaged with the workpiece ...

[0018] (3) The present invention presses the movable seat plate against the positioning cross base plate through the rebound force of the compression spring in the compression spring rod, and ensures the meshing of the driven gear and the driving gear and the stable operation of the subsequent clamping steps through the rebound force. At the same time, when the deviation occurs, the correction cylinder pushes the movable seat plate and the workpiece on the clamping slide toward the center of the positioning cross base plate when powered on to correct the deviation, thereby greatly improving the convenience of the subsequent correction of the fixture and the subsequent processing efficiency.

[0019] (4) The electromagnetic wire wound around the outside of the electromagnetic core in the electromagnetic seat of the present invention can form a magnetic field when current passes through it and impart magnetic force to the electromagnet and multiple groups of electromagnetic extension blocks, so that the metal workpiece can be initially fixed and positioned by the magnetic force, which is convenient for subsequent clamping operations and greatly improves the fixing effect of the clamp on the workpiece. At the same time, this fixing method facilitates the subsequent disassembly of the workpiece.

[0020] In summary, the present invention has the advantages of firm fixing effect, high processing precision, convenient operation, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a positioning fixture for a machining center according to the present invention; Figure 2 This is a bottom view structural diagram of a positioning fixture for a machining center according to the present invention; Figure 3 This is a schematic diagram of the exploded structure of a positioning fixture for a machining center according to the present invention; Figure 4 This is a schematic diagram of the structure of a positioning fixture driving mechanism for a machining center according to the present invention; Figure 5 This is a schematic diagram of the structure of an electromagnetic positioning mechanism for a positioning fixture for a machining center according to the present invention; Figure 6 This is a schematic diagram of the structure of a positioning fixture clamping warning mechanism assembly of a machining center of the present invention; Figure 7 This is a schematic diagram of the structure of a clamping mechanism for a positioning fixture for a machining center according to the present invention; Figure 8 This is a structural schematic diagram of a locking mechanism for a positioning fixture of a machining center according to the present invention; Fig. 9 This is a schematic diagram of the structure of a warning and deviation correction mechanism assembly for a positioning fixture of a machining center according to the present invention; Fig.10 This is a schematic diagram of the disassembled structure of a warning mechanism for a positioning fixture of a machining center according to the present invention; Fig.11 This is a schematic diagram of the internal structure of a trigger sleeve of a positioning fixture for a machining center according to the present invention; The accompanying drawings of the present application are marked as follows: 1. Processing platform; 2. Platform side plate; 3. Platform column; 4. Load-bearing cross bottom plate; 5. Driving mechanism; 501. Servo motor; 502. Motor output shaft; 503. Driving top bearing; 504. Driving shaft; 505. Driving gear; 506. Docking plate; 507. Docking bolt; 6. Positioning cross bottom plate; 7. Electromagnetic positioning mechanism; 701. Accommodating groove; 702. Electromagnetic seat; 703. Electromagnetic core; 704. Electromagnet; 705. Electromagnetic extension block; 706. Electromagnetic wire; 707. Threading hole; 8. L-shaped structural plate; 9. Clamping mechanism; 901. Active Driven seat plate; 902, driven shaft; 903, driven bearing; 904, bearing ball; 905, driven gear; 906, driving bevel gear; 907, fixed vertical plate; 908, fixed support block; 909, driven nut; 910, driven bevel gear; 911, limiting groove; 912, movable screw rod; 913, threaded wall groove; 914, limiting edge block; 915, clamping slider; 916, V-shaped groove; 917, extension edge block; 918, V-shaped damping pad; 919, guide slide; 920, guide slide; 921, limiting slide; 922, limiting slide; 923, shaft slide; 10, Locking mechanism; 1001, gear locking block; 1002, T-shaped slider; 1003, T-shaped slide; 1004, locking plug; 1005, lifting ring; 1006, locking hole; 11, warning mechanism; 1101, horizontal rod seat; 1102, trigger sleeve; 1103, movable traction rod; 1104, movable round plate; 1105, movable mounting seat; 1106, movable conductive block; 1107, movable conductive rod; 1108, wiring copper nose; 1109, power input line; 1110, copper nose locking edge; 1111, locking bolt; 1112, limiting protrusion; 1113, limiting wall groove; 1 114. Conductive rod slide groove; 1115. Fixed circular plate; 1116. Fixed mounting seat; 1117. Fixed conductive block; 1118. Fixed conductive rod; 1119. Equipment input line; 1120. Reset spring; 1121. Assembly circular plate; 1122. Indicator light; 1123. Buzzer alarm; 1124. Assembly bolt; 1125. Terminal block; 1126. Equipment output line; 1127. Tow rod limiting cover; 12. Correction mechanism; 1201. Compression spring rod; 1202. Correction cylinder; 1203. Cylinder output rod; 1204. Output connection block; 1205. Installation long bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention 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 invention.

[0024] 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 the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Example: Figure 1-11As shown, this embodiment provides a positioning fixture for a machining center, comprising a machining platform 1, and also comprising a plurality of sets of platform side panels 2 fixedly connected to the outside of the machining platform 1, the plurality of platform side panels 2 being distributed in a rectangular shape on the outside of the machining platform 1, a platform column 3 being fixedly connected to the bottom of the platform side panels 2, a load-bearing cross bottom panel 4 being provided at the bottom of the machining platform 1, a driving mechanism 5 being provided at the top of the load-bearing cross bottom panel 4, a positioning cross bottom panel 6 being fixedly connected to the top of the machining platform 1, an electromagnetic positioning mechanism 7 being provided in the central groove of the positioning cross bottom panel 6, an L-shaped structural panel 8 being provided at the top of the platform side panels 2, a clamping mechanism 9 being provided at the top of the L-shaped structural panel 8, and a flat plate 10 being provided at the top of the platform side panels 2. A locking mechanism 10 is provided on the outer side of the table side plate 2, a warning mechanism 11 is provided on the top of the L-shaped structural plate 8, and a correction mechanism 12 is provided on one side of the L-shaped structural plate 8; the clamping mechanism 9 includes a movable seat plate 901 movably connected to the top of the L-shaped structural plate 8, a driven shaft 902 is connected through the top of the movable seat plate 901, a driven gear 905 is fixedly connected to the bottom end of the driven shaft 902, a driving bevel gear 906 is fixedly connected to the top of the driven shaft 902, a fixed vertical plate 907 is fixedly connected to the top of the fixed vertical plate 907, a fixed support block 908 is fixedly connected to the top of the fixed support block 908, and one side of the fixed support block 908 is movably connected to the top of the L-shaped structural plate 8. A driven nut 909 is connected to the movable support block 908, and a driven bevel gear 910 is fixedly connected to the outer wall of the driven nut 909. A limiting rotation groove 911 is provided on the outer wall of the fixed support block 908. A movable screw rod 912 is threadedly connected to one side of the fixed support block 908. A threaded wall groove 913 is provided on one side of the driven nut 909. One end of the movable screw rod 912 is fixedly connected to a limiting edge block 914. A clamping slider 915 is provided at one end of the movable screw rod 912. Two groups of limiting slide bars 921 are provided at the bottom of the movable seat plate 901. The two groups of limiting slide bars 921 are symmetrically distributed at the bottom of the movable seat plate 901. The outer wall of the L-shaped structural plate 8 has two groups of limiting slide grooves. 922, two groups of limiting slide grooves 922 are symmetrically distributed on the outer wall of the L-shaped structural plate 8, and a rotating shaft slide groove 923 is opened on the top of the L-shaped structural plate 8; the locking mechanism 10 includes two groups of gear locking blocks 1001 movably connected to the outside of the L-shaped structural plate 8, the two groups of gear locking blocks 1001 are symmetrically distributed on the outside of the L-shaped structural plate 8, one side of the two groups of gear locking blocks 1001 is fixedly connected with a T-shaped slider 1002, and the top of the gear locking block 1001 is movably plugged with a locking plug 1004, and a plurality of groups of locking holes 1006 are opened on the top of the driven gear 905, and the plurality of groups of locking holes 1006 are annularly distributed on the top of the driven gear 905;The warning mechanism 11 includes two groups of transverse rod seats 1101 installed on the inner side of the side plate of the L-shaped structural plate 8. The two groups of transverse rod seats 1101 are symmetrically distributed on the inner side of the side plate of the L-shaped structural plate 8. One end of the transverse rod seat 1101 is fixedly connected to a trigger sleeve 1102, and one side of the trigger sleeve 1102 is movably connected to a movable traction rod 1103. The tail end of the movable traction rod 1103 is fixedly connected to a movable circular plate 1104, and one side of the movable circular plate 1104 is fixedly connected to a movable mounting seat 1105. A movable conductive block is installed on one side of the movable mounting seat 1105. 1106, a movable conductive rod 1107 is connected through one side of the movable mounting seat 1105, a wiring copper nose 1108 is arranged on the top of the movable conductive rod 1107, a power input line 1109 is installed on the top of the wiring copper nose 1108, a conductive rod slide groove 1114 is opened on the outer wall of the trigger sleeve 1102, a fixed circular plate 1115 is fixedly connected to the inner wall of the trigger sleeve 1102, a fixed mounting seat 1116 is fixedly connected to one side of the fixed circular plate 1115, a fixed conductive block 1117 is installed on one side of the fixed mounting seat 1116, and the fixed mounting seat 1116 is provided with a fixed conductive block 1117. A fixed conductive rod 1118 is connected to one side of the L-shaped structural plate 116, and a device input line 1119 is installed on the top of the fixed conductive rod 1118. A reset spring 1120 is installed between the movable circular plate 1104 and the fixed circular plate 1115. Two groups of assembly circular plates 1121 are arranged on the outer side of the side plate of the L-shaped structural plate 8. The two groups of assembly circular plates 1121 are symmetrically distributed on the outer side of the side plate of the L-shaped structural plate 8. An indicator light 1122 is installed on one side of one group of assembly circular plates 1121, and a buzzer alarm 1123 is installed on one side of the other group of assembly circular plates 1121. The indicator light 1122 The outside of the alarm buzzer 1123 is provided with a wiring terminal 1125, the top of the wiring terminal 1125 is provided with a device output line 1126, and one end of the trigger sleeve 1102 is provided with a traction rod limiting cover 1127; the correction mechanism 12 includes two groups of compression spring rods 1201 installed on the inner side of the side plate of the L-shaped structural plate 8, and the two groups of compression spring rods 1201 are symmetrically distributed on the inner side of the side plate of the L-shaped structural plate 8, and a correction cylinder 1202 is installed on the outer side of the side plate of the L-shaped structural plate 8, and a cylinder output rod 1203 is provided on one side of the correction cylinder 1202.;

[0026] Among them, multiple sets of platform side plates 2, platform columns 3 and load-bearing cross bottom plates 4 provide support for the upper mechanisms and components; the positioning cross bottom plate 6 provides support for the clamping and positioning components; the movable seat plate 901 provides support for the driven component and can slide on the L-shaped structural plate 8, and the driven gear 905 on the top driven shaft 902 is meshed with the driving gear 505, so that it can rotate synchronously with the driving shaft 504 and realize the driving of the top driving bevel gear 906; the fixed vertical plate 907 provides support for the fixed support block 908, and the fixed support block 908 provides support for the driven nut 909 and the movable screw rod 912, and the driven bevel gear 910 outside the driven nut 909 is meshed with the driving bevel gear 906, so that the driven nut 909 can be driven. 09 rotates on the limiting rotation groove 911 of the fixed support block 908, and the external thread of the movable screw rod 912 is threadedly connected with the threaded wall groove 913 on the driven nut 909, so that the movable screw rod 912 can be driven to rotate and move by the positioning rotation of the driven nut 909, and the other end of the movable screw rod 912 is movably connected with the rotating seat limit on the clamping slide block 915, so that the clamping slide block 915 can be pushed to move on the positioning cross bottom plate 6 through the lateral movement of the movable screw rod 912, thereby achieving the clamping of the workpiece; wherein the two groups of limiting slide bars 921 are movably connected with the two groups of limiting slide grooves 922, so that the clamping slide block 915 can be guided and limited to prevent it from falling off; wherein the opening of the shaft slide groove 923 can allow the driven shaft 902 to be offset lateral sliding when the two sets of gear locking blocks 1001 are connected to the sliding groove on the L-shaped structural plate 8 through the T-shaped slider 1002, and the locking plug 1004 passing through the top can be plugged into multiple sets of locking holes 1006, so that the driven gears 905 of different angles and workpieces of different sizes can be plugged and locked, so that the position of the clamping slider 915 can be locked through the subsequent linkage setting to ensure the clamping and fixing effect; the two sets of horizontal rod seats 1101 provide support for the trigger sleeves 1102 of the two sets of warning devices; the tail end of the movable traction rod 1103 is docked with the movable seat plate 901, so that when the azimuth offset occurs, it can move with the movable seat plate 901 to push the movable circular plate 1104 in the trigger sleeve 110 2, so that the movable conductive block 1106 in the movable mounting seat 1105 on the side of the movable circular plate 1104 overcomes the resilience of the reset spring 1120 and contacts the fixed conductive block 1117 in the fixed mounting seat 1116 on the side of the fixed circular plate 1115, and further connects the power input line 1109 on the movable conductive rod 1107 with the equipment input line 1119 on the fixed conductive rod 1118, thereby realizing the power supply to the indicator lights 1122 and the buzzer alarm 1123 respectively installed on the two sets of assembly circular plates 1121, and reminding the staff of the displacement of the direction through the two sets of warning devices; wherein the wiring terminal 1125 facilitates the connection of the wiring harness; wherein the traction rod limiting cover 1127 can limit the movable traction rod 1103;The two groups of compression spring rods 1201 are provided with compression springs, so that the movable seat plate 901 can be pressed against the end of the positioning cross bottom plate 6 by the pressure of the springs, and the meshing transmission between the driven gear 905 and the driving gear 505 can be ensured; the deviation correction cylinder 1202 can provide power for the reset of the workpiece through the cylinder output rod 1203 when powered on.

[0027] The driving mechanism 5 includes a servo motor 501 installed on the top of the load-bearing cross base plate 4, a motor output shaft 502 is arranged on the top of the servo motor 501, a driving top bearing 503 is fixedly connected to the bottom of the processing platform 1, a driving shaft 504 is installed at the bottom of the driving top bearing 503, a driving gear 505 is fixedly connected to the outer side of the driving shaft 504, and a docking plate 506 is arranged at one end of the motor output shaft 502 and the driving shaft 504, and a plurality of docking bolts 507 are threadedly connected to the bottom of the docking plate 506, and the plurality of docking bolts 507 are distributed in a ring shape at the bottom of the docking plate 506.

[0028] Among them, the servo motor 501 provides power for the clamping function of the clamp. When it is powered on, it can drive the driving gear 505 on the driving shaft 504 to rotate on the driving top bearing 503 through the motor output shaft 502, and pull the movement of subsequent components through the driving gear 505; the two sets of docking plates 506 can achieve the docking of the driving shaft 504 and the motor output shaft 502 through the use of multiple sets of docking bolts 507, threaded holes and nuts, thereby ensuring the stable transmission of the power of the servo motor 501.

[0029] The electromagnetic positioning mechanism 7 includes a receiving groove 701 provided at the top of the positioning cross bottom plate 6, an electromagnetic seat 702 is installed inside the receiving groove 701, an electromagnetic core 703 is provided inside the electromagnetic seat 702, an electromagnet 704 is provided on the top of the electromagnetic core 703, a plurality of groups of electromagnetic extension blocks 705 are provided on the outside of the electromagnet 704, the plurality of groups of electromagnetic extension blocks 705 are distributed in a ring shape on the outside of the electromagnet 704, an electromagnetic wire 706 is wound around the outside of the electromagnetic core 703, and a threading hole 707 is provided on the inner wall of the receiving groove 701.

[0030] Among them, the accommodating groove 701 can accommodate the electromagnetic component; the electromagnetic wire 706 outside the electromagnetic core 703 in the electromagnetic seat 702 can form a magnetic field when energized and provide magnetic force to the electromagnet 704 and multiple groups of electromagnetic extension blocks 705, so that the workpiece can be adsorbed and fixed by the magnetic force, which is convenient for subsequent clamping and improves the fixing effect of the workpiece; the threading hole 707 is opened to facilitate the routing of the electromagnetic wire 706 and reduce the wear of the wiring harness.

[0031] The clamping mechanism 9 also includes a driven bearing 903 fixedly connected to the top of the movable seat plate 901 , and the driven bearing 903 is internally movably connected with multiple groups of bearing balls 904 , which are distributed in a ring shape inside the driven bearing 903 .

[0032] The driven bearing 903 provides support for the driven shaft 902 and reduces friction resistance through multiple sets of bearing balls 904 inside the driven shaft 902, thereby improving the rotation response efficiency of the driven shaft 902.

[0033] The clamping mechanism 9 also includes a V-shaped groove 916 opened on one side of the clamping slider 915, an extended side block 917 on one side of the clamping slider 915, a V-shaped damping pad 918 is installed on the inner wall of the V-shaped groove 916, two groups of guide slides 919 are arranged at the bottom of the clamping slider 915, and the two groups of guide slides 919 are symmetrically distributed at the bottom of the clamping slider 915, and two groups of guide grooves 920 are opened on the outer wall of the extended end of the positioning cross bottom plate 6, and the two groups of guide grooves 920 are symmetrically distributed on the outer wall of the extended end of the positioning cross bottom plate 6.

[0034] Among them, the opening of the V-shaped groove 916 facilitates the clamping of tubular and columnar workpieces by the clamping slider 915, and the setting of the extended edge block 917 does not affect the clamping and fixation of the square workpiece by the component, and the use of the V-shaped damping pad 918 increases the friction between the workpiece and the workpiece to improve the clamping effect, while reducing the wear of the workpiece surface caused by the clamping operation; the two groups of guide slides 919 can be movably connected with the two groups of guide slots 920, so that the clamping slider 915 can be guided and restricted at the same time to avoid falling off from the positioning cross base plate 6.

[0035] The locking mechanism 10 also includes two groups of T-shaped slots 1003 provided on the outer wall of the L-shaped structural plate 8 . The two groups of T-shaped slots 1003 are symmetrically distributed on the outer wall of the L-shaped structural plate 8 . A lifting ring 1005 is provided on the top of the locking bolt 1004 .

[0036] Among them, the two groups of T-shaped slots 1003 can be movably connected with the T-shaped slider 1002, so that the gear locking block 1001 can be guided and restricted at the same time, and the synchronous movement with the movable seat plate 901 is achieved.

[0037] The warning mechanism 11 also includes two groups of copper nose locking edges 1110 arranged at the side opening of the wiring copper nose 1108. The two groups of copper nose locking edges 1110 are symmetrically distributed at the side opening of the wiring copper nose 1108. One side of the two groups of copper nose locking edges 1110 is threadedly connected with two groups of locking bolts 1111. The two groups of locking bolts 1111 are symmetrically distributed on one side of the two groups of copper nose locking edges 1110.

[0038] Among them, the setting of two sets of copper nose locking edges 1110 facilitates the insertion of the power input line 1109 core, and tightening it by two sets of locking bolts 1111 to achieve a tight connection of the power input line 1109 core, thereby facilitating the user to disassemble and assemble the wiring.

[0039] The warning mechanism 11 also includes a plurality of groups of limiting protrusions 1112 arranged on the outer wall of the movable circular plate 1104, and the plurality of groups of limiting protrusions 1112 are distributed in a ring shape on the outer wall of the movable circular plate 1104. The inner wall of the trigger sleeve 1102 is provided with a plurality of groups of limiting wall grooves 1113, and the plurality of groups of limiting wall grooves 1113 are distributed in a ring shape on the inner wall of the trigger sleeve 1102.

[0040] Among them, multiple groups of limiting protrusions 1112 can slide along multiple groups of limiting wall grooves 1113, so as to limit and guide the movable circular plate 1104, and avoid its deflection causing the loose connection of the reset spring 1120, thereby ensuring the triggering and subsequent use effects.

[0041] The warning mechanism 11 further includes a plurality of assembly bolts 1124 which are threadedly connected to one side of the bottom plate of the indicator light 1122 and the buzzer alarm 1123 . The plurality of assembly bolts 1124 are distributed in a ring shape on one side of the bottom plate of the indicator light 1122 and the buzzer alarm 1123 .

[0042] Among them, multiple groups of assembly bolts 1124 can be threadedly connected with the corresponding threaded holes on the assembly circular plate 1121, so as to realize the installation of the indicator light 1122 and the buzzer alarm 1123. This installation method is convenient for users to inspect and disassemble the equipment.

[0043] The correcting mechanism 12 also includes an output connecting block 1204 arranged at the tail end of the cylinder output rod 1203. The tail end of the cylinder output rod 1203 is fixedly connected to the movable seat plate 901 through the output connecting block 1204. One side of the correcting cylinder 1202 is threadedly connected with multiple groups of long mounting bolts 1205. The multiple groups of long mounting bolts 1205 are distributed in a rectangular shape on one side of the correcting cylinder 1202.

[0044] Among them, the use of the output connecting block 1204 ensures the connection effect between the tail end of the cylinder output rod 1203 and the movable seat plate 901, and further ensures the stable application of pressure during correction; wherein multiple sets of mounting long bolts 1205 can be threadedly connected with the threaded holes on the side plate 8 of the L-shaped structural plate, thereby realizing the installation of the correction cylinder 1202, which is convenient for subsequent maintenance and disassembly.

[0045] Working principle: The user switches on the circuit before use, and then places the stainless steel workpiece to be processed at the center of the electromagnet 704 in the accommodating groove 701 at the top of the positioning cross bottom plate 6. Then the user energizes the electromagnetic wire 706. When the current passes through the electromagnetic wire 706 wound around the electromagnetic core 703, a magnetic field is formed and a magnetic force is imparted to the electromagnet 704 and the multiple sets of electromagnetic extension blocks 705. The stainless steel workpiece is adsorbed by the magnetic force, thereby achieving preliminary fixation of the workpiece. Then the user powers on the servo motor 501. When the servo motor 501 is powered on and started, the motor output shaft 502 drives the driving gear 505 on the driving shaft 504 to rotate on the driving top bearing 503. The driven shafts 902 at the four directions drive the driving bevel gear 906 on the top of the driven shaft 902 to rotate on the driven bearing 903 through the meshing of the driven gear 905 at the bottom and the driving gear 505. The driven nut 909 rotates on the limiting groove 911 of the fixed support block 908 through the meshing of the driven bevel gear 910 and the driving bevel gear 906. The external thread of the movable screw rod 912 is engaged with the internal thread wall groove 911 of the driven nut 909. 13 will drive the movable screw rod 912 to rotate and move on the clamping slide block 915 when the driven nut 909 rotates, so that the clamping slide block 915 can be pushed to approach the workpiece at the center of the positioning cross bottom plate 6 and clamp the workpiece. After the clamping is completed, the user cuts off the power to the servo motor 501, and passes the two sets of locking plugs 1004 from the top of the gear locking block 1001 and inserts them into the locking holes 1006 at the corresponding positions on the top of the driven gear 905, so that the driving gear 505 and the driven gear 905 can be locked, and the movable screw rod 912 and the clamping slide block 915 can be further locked, so as to achieve further clamping and fixing of the workpiece; After the workpiece is processed, the user pulls out the locking bolt 1004 and controls the servo motor 501 to reverse through the control unit on the servo motor 501. After the servo motor 501 reverses, it drives the multiple sets of movable screw rods 912 and the clamping slide block 915 to move outward through the above linkage setting, thereby releasing the clamping of the workpiece. Then, the electromagnetic wire 706 is disconnected so that the magnetic force of the electromagnet 704 and the electromagnetic extension block 705 disappears and the workpiece is no longer adsorbed, so that the workpiece can be taken out; When the workpiece is subjected to pressure from improper operation of the processing equipment or is affected by external factors during processing, the workpiece will be offset in a certain direction, thereby pushing the clamping slider 915 in the corresponding direction to move. Since the driven gear 905 is in a locked state and is restricted by the threaded connection of the movable screw rod 912, the clamping slider 915 will push the movable seat plate 901 as a whole to overcome the rebound force of the compression spring in the compression spring rod 1201 and move along the limiting slide groove 922 on the outer side of the L-shaped structural plate 8 toward the outside of the processing platform 1. After overcoming the rebound force of the compression spring in the compression spring rod 1201, the locking component can be driven to move synchronously, so that the driven gear 905 is offset and the driving gear 505 cannot engage. The L-shaped structural plate 8 is fixed. The outward movement of the movable seat plate 901 can push the movable circular plate 1104 through the two sets of movable traction rods 1103 to overcome the resilience of the reset spring 1120 and move backward along the limiting wall groove 1113 on the inner wall of the trigger sleeve 1102, so that the movable conductive block 1106 on the movable circular plate 1104 is in contact with the fixed conductive block 1117 on the fixed circular plate 1115, so that the power input line 1109 is connected to the equipment input line 1119 and the indicator light 1122 and the buzzer alarm 1123 are powered. The two sets of warning devices are powered on to emit sound and light warnings to remind the staff that the workpiece offset event has occurred in this direction, thereby realizing the offset warning function of the fixture, so that the staff can take timely response measures; After the deviation occurs, the user energizes the correcting cylinder 1202 on the outside of the L-shaped structural plate 8 in that position. When the correcting cylinder 1202 is energized and started, it will push the movable seat plate 901 as a whole and the workpiece on the clamping slider 915 toward the center of the positioning cross bottom plate 6 through the cylinder output rod 1203 to correct the deviation, thereby realizing the correcting function of the clamp.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning fixture for a machining center, comprising a machining platform (1), characterized in that: It also comprises a plurality of sets of platform side panels (2) fixedly connected to the outside of the processing platform (1), the plurality of sets of platform side panels (2) being distributed in a rectangular shape on the outside of the processing platform (1), the bottom of the platform side panels (2) being fixedly connected to platform columns (3), the bottom of the processing platform (1) being provided with a load-bearing cross bottom plate (4), the top of the load-bearing cross bottom plate (4) being provided with a driving mechanism (5), the top of the processing platform (1) being fixedly connected to a positioning cross bottom plate (6), the central groove of the positioning cross bottom plate (6) being provided with an electromagnetic positioning mechanism (7), the top of the platform side panels (2) being provided with an L-shaped structural plate (8), the top of the L-shaped structural plate (8) being provided with a clamping mechanism (9), the outer side of the platform side panels (2) being provided with a locking mechanism (10), the top of the L-shaped structural plate (8) being provided with a warning mechanism (11), and one side of the L-shaped structural plate (8) being provided with a deviation correction mechanism (12); The clamping mechanism (9) comprises a movable seat plate (901) movably connected to the top of the L-shaped structural plate (8); a driven shaft (902) is connected through the top of the movable seat plate (901); a driven gear (905) is fixedly connected to the bottom end of the driven shaft (902); a driving bevel gear (906) is fixedly connected to the top of the driven shaft (902); a fixed vertical plate (907) is fixedly connected to the top of the movable seat plate (901); a fixed support block (908) is fixedly connected to the top of the fixed vertical plate (907); a driven nut (909) is movably connected to one side of the fixed support block (908); a driven bevel gear (910) is fixedly connected to the outer wall of the driven nut (909); and a limiting rotation groove is provided on the outer wall of the fixed support block (908). (911), a movable screw rod (912) is threadedly connected to one side of the fixed support block (908), a threaded wall groove (913) is provided on one side of the driven nut (909), one end of the movable screw rod (912) is fixedly connected to a limiting edge block (914), one end of the movable screw rod (912) is provided with a clamping slider (915), two groups of limiting slide bars (921) are provided at the bottom of the movable seat plate (901), and the two groups of limiting slide bars (921) are symmetrically distributed at the bottom of the movable seat plate (901), two groups of limiting grooves (922) are provided on the outer wall of the L-shaped structural plate (8), and the two groups of limiting grooves (922) are symmetrically distributed on the outer wall of the L-shaped structural plate (8), and a rotating shaft groove (923) is provided at the top of the L-shaped structural plate (8); The locking mechanism (10) comprises two groups of gear locking blocks (1001) movably connected to the outside of the L-shaped structural plate (8), the two groups of gear locking blocks (1001) are symmetrically distributed on the outside of the L-shaped structural plate (8), one side of the two groups of gear locking blocks (1001) is fixedly connected to a T-shaped slider (1002), the top of the gear locking block (1001) is movably plugged with a locking bolt (1004), and the top of the driven gear (905) is provided with a plurality of groups of locking holes (1006), and the plurality of groups of locking holes (1006) are distributed in a ring shape on the top of the driven gear (905); The warning mechanism (11) comprises two groups of transverse rod seats (1101) installed on the inner side of the side plate of the L-shaped structural plate (8), the two groups of transverse rod seats (1101) are symmetrically distributed on the inner side of the side plate of the L-shaped structural plate (8), one end of the transverse rod seat (1101) is fixedly connected to a trigger sleeve (1102), one side of the trigger sleeve (1102) is movably connected to a movable traction rod (1103), the rear end of the movable traction rod (1103) is fixedly connected to a movable circular plate (1104), and one side of the movable circular plate (1104) is fixedly connected to a movable safety device (1103). A mounting seat (1105), a movable conductive block (1106) is installed on one side of the movable mounting seat (1105), a movable conductive rod (1107) is connected through one side of the movable mounting seat (1105), a wiring copper nose (1108) is arranged on the top of the movable conductive rod (1107), a power input line (1109) is installed on the top of the wiring copper nose (1108), a conductive rod sliding groove (1114) is opened on the outer wall of the trigger sleeve (1102), a fixed circular plate (1115) is fixedly connected to the inner wall of the trigger sleeve (1102), and the fixed A fixed mounting seat (1116) is fixedly connected to one side of the circular plate (1115), a fixed conductive block (1117) is installed on one side of the fixed mounting seat (1116), a fixed conductive rod (1118) is connected through one side of the fixed mounting seat (1116), a device input line (1119) is installed on the top of the fixed conductive rod (1118), a return spring (1120) is installed between the movable circular plate (1104) and the fixed circular plate (1115), and two groups of assembly circular plates (1121) are arranged on the outer side of the side plate of the L-shaped structural plate (8), and the two groups of assembly circular plates (1121) are arranged on the outer side of the side plate of the L-shaped structural plate (8). The assembly circular plates (1121) are symmetrically distributed on the outer side of the side plate of the L-shaped structural plate (8); an indicator light (1122) is installed on one side of one group of the assembly circular plates (1121); a buzzer alarm (1123) is installed on one side of another group of the assembly circular plates (1121); wiring terminals (1125) are provided on the outer sides of the indicator lights (1122) and the buzzer alarm (1123); a device output line (1126) is installed on the top of the wiring terminal (1125); and a traction rod limiting cover (1127) is provided on one end of the trigger sleeve (1102); The deviation correction mechanism (12) comprises two groups of compression spring rods (1201) installed on the inner side of the side plate of the L-shaped structural plate (8), the two groups of compression spring rods (1201) are symmetrically distributed on the inner side of the side plate of the L-shaped structural plate (8), a deviation correction cylinder (1202) is installed on the outer side of the side plate of the L-shaped structural plate (8), and a cylinder output rod (1203) is provided on one side of the deviation correction cylinder (1202).

2. A machining center positioning fixture according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (501) mounted on the top of the load-bearing cross bottom plate (4); a motor output shaft (502) is arranged on the top of the servo motor (501); a driving top bearing (503) is fixedly connected to the bottom of the processing platform (1); a driving shaft (504) is installed at the bottom of the driving top bearing (503); a driving gear (505) is fixedly connected to the outer side of the driving shaft (504); a docking plate (506) is arranged at one end of each of the motor output shaft (502) and the driving shaft (504); a plurality of docking bolts (507) are threadedly connected to the bottom of the docking plate (506); and the plurality of docking bolts (507) are distributed in a ring shape at the bottom of the docking plate (506).

3. A machining center positioning fixture according to claim 1, characterized in that: The electromagnetic positioning mechanism (7) comprises a receiving groove (701) provided at the top of the positioning cross bottom plate (6); an electromagnetic seat (702) is installed inside the receiving groove (701); an electromagnetic core (703) is provided inside the electromagnetic seat (702); an electromagnet (704) is provided on the top of the electromagnetic core (703); a plurality of groups of electromagnetic extension blocks (705) are provided on the outside of the electromagnet (704); the plurality of groups of electromagnetic extension blocks (705) are distributed in a ring shape on the outside of the electromagnet (704); an electromagnetic wire (706) is wound around the outside of the electromagnetic core (703); and a threading hole (707) is provided on the inner wall of the receiving groove (701).

4. A machining center positioning fixture according to claim 1, characterized in that: The clamping mechanism (9) further comprises a driven bearing (903) fixedly connected to the top of the movable seat plate (901), wherein the driven bearing (903) is internally movably connected with a plurality of groups of bearing balls (904), and the plurality of groups of bearing balls (904) are distributed in a ring shape inside the driven bearing (903).

5. A machining center positioning fixture according to claim 1, characterized in that: The clamping mechanism (9) further comprises a V-shaped groove (916) provided on one side of the clamping slider (915), a side block (917) extending from one side of the clamping slider (915), a V-shaped damping pad (918) being installed on the inner wall of the V-shaped groove (916), two groups of guide slide bars (919) being provided at the bottom of the clamping slider (915), the two groups of guide slide bars (919) being symmetrically distributed at the bottom of the clamping slider (915), and two groups of guide grooves (920) being provided on the outer wall of the extended end of the positioning cross bottom plate (6), the two groups of guide grooves (920) being symmetrically distributed on the outer wall of the extended end of the positioning cross bottom plate (6).

6. A machining center positioning fixture according to claim 1, characterized in that: The locking mechanism (10) further comprises two groups of T-shaped slots (1003) provided on the outer wall of the L-shaped structural plate (8), the two groups of T-shaped slots (1003) being symmetrically distributed on the outer wall of the L-shaped structural plate (8), and a lifting ring (1005) is provided on the top of the locking bolt (1004).

7. A machining center positioning fixture according to claim 1, characterized in that: The warning mechanism (11) further comprises two groups of copper nose locking edges (1110) arranged at the side opening of the wiring copper nose (1108), the two groups of copper nose locking edges (1110) being symmetrically distributed at the side opening of the wiring copper nose (1108), one side of the two groups of copper nose locking edges (1110) being threadedly connected with two groups of locking bolts (1111), and the two groups of locking bolts (1111) being symmetrically distributed on one side of the two groups of copper nose locking edges (1110).

8. The positioning fixture for a machining center according to claim 1, characterized in that: The warning mechanism (11) further comprises a plurality of groups of limiting protrusions (1112) arranged on the outer wall of the movable circular plate (1104), wherein the plurality of groups of limiting protrusions (1112) are distributed in a ring shape on the outer wall of the movable circular plate (1104), and the inner wall of the trigger sleeve (1102) is provided with a plurality of groups of limiting wall grooves (1113), wherein the plurality of groups of limiting wall grooves (1113) are distributed in a ring shape on the inner wall of the trigger sleeve (1102).

9. A machining center positioning fixture according to claim 1, characterized in that: The warning mechanism (11) further comprises a plurality of groups of assembly bolts (1124) which are threadedly connected to one side of the bottom plate of the indicator light (1122) and the buzzer alarm (1123); the plurality of groups of assembly bolts (1124) are distributed in a ring shape on one side of the bottom plate of the indicator light (1122) and the buzzer alarm (1123).

10. A positioning fixture for a machining center according to claim 1, characterized in that: The correcting mechanism (12) further comprises an output connection block (1204) arranged at the rear end of the cylinder output rod (1203), the rear end of the cylinder output rod (1203) being fixedly connected to the movable seat plate (901) via the output connection block (1204), and a plurality of groups of long mounting bolts (1205) are threadedly connected to one side of the correcting cylinder (1202), and the plurality of groups of long mounting bolts (1205) are distributed in a rectangular shape on one side of the correcting cylinder (1202).

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