Workpiece clamping device of vertical machining center

Abstract

The invention provides a workpiece clamping device of a vertical machining center, relates to the technical field of machine tool supporting facilities, and aims to solve the problems that power-off degaussing and manual cleaning are needed during cleaning, the cleaning is troublesome, the situation that power-off degaussing is forgotten to occur easily, and the machining efficiency is greatly influenced. The clamping base table is of a rectangular plate-shaped structure, a bottom support is arranged at the bottom of the clamping base table, the bottom of one end of the bottom support is fixedly in butt joint with a waste chip collecting box with an opening in the front side, a supporting leg block is fixedly arranged at the bottom of the other end of the bottom support in a vertically downward mode, and the supporting leg block is flush with the lower end face of the waste chip collecting box. And a control box is fixedly hung on the side wall of the outer end of the supporting leg block. After the magnetic scrap suction plate is inserted back again, the clamping operation table is in a clean state, machining of machining accessories of a next machine tool is not affected, the clamping machining efficiency of the machining accessories of the machine tool is improved, and magnetic operation and continuous clamping machining can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool supporting facility processing, in particular to a workpiece clamping device for a vertical machining center. Background Art

[0002] Three-jaw chucks are often used on machine tools to clamp workpieces. The traditional three-jaw chuck uses a chuck wrench to rotate the small bevel gear on the circumference to drive the large bevel gear to rotate, and the rotation of the flat thread of the large bevel gear drives the three jaws to move inward or outward to achieve the clamping and removal of the workpiece. For example, in the patent application CN202010666790.2, a workpiece clamping device for a CNC machine tool includes a mounting plate; a group of clamping plates arranged opposite to each other are provided above the mounting plate, and a rotating bearing plate is connected to the lower end of the clamping plate; the bearing plate is rotatably connected to the bearing plate, and the two ends of the bearing plate are fixedly connected to a turntable, and a support plate is provided on the outer side of the turntable, and an eccentric rod is vertically fixedly connected to the outer end surface of the turntable, and the eccentric rod is rotatably connected to a second synchronous hydraulic cylinder. The present invention is provided with a carrying plate, a carrying plate, a supporting shaft, a worm gear, a worm and a servo motor to control the rotation of the carrying plate, thereby adjusting the clamping angle of the clamping plate and facilitating the selection of a suitable clamping angle; by providing a turntable, a supporting plate, an eccentric rod and a second synchronous hydraulic cylinder, the spatial position of the clamping plate can be changed, thereby facilitating the selection of a suitable clamping position for irregular parts; at the same time, the parts can be clamped to drive the rotation, and the processing angle and position can be adjusted in cooperation with the processing tool.

[0003] Usually, a large amount of iron filings are generated in the process of machining parts of machine tools. The iron filings are scattered between the clamping chucks. In order to facilitate the next use, the operator needs to use a brush to clean and sweep them. Usually, in order to avoid the iron filings from splashing, the clamping table is made magnetic to facilitate the magnetic adsorption of iron filings. However, it is necessary to turn off the power and demagnetize manually for cleaning, which is still troublesome. It is also easy to forget to turn off the power and demagnetize, which greatly affects the processing efficiency. Summary of the invention

[0004] In view of this, the present invention provides a workpiece clamping device for a vertical machining center to solve the problem that a large amount of iron chips are generated during the processing of machine tool accessories. The iron chips are scattered between the clamping chucks. In order to facilitate the next use, the operator needs to use a brush to clean and sweep them. Usually, in order to avoid the iron chips from splashing, the clamping table is made magnetic to facilitate magnetic adsorption of the iron chips. However, when cleaning, the power needs to be turned off and demagnetized manually, which is still troublesome. In addition, it is easy to forget to turn off the power and demagnetize, which greatly affects the processing efficiency.

[0005] The present invention provides a workpiece clamping device for a vertical machining center, specifically including: a clamping base; the clamping base is a rectangular plate-like structure, and a bottom support is provided at the bottom of the clamping base. At one end of the bottom support, a waste chip collection box with an opening at the front side is fixedly butted, and at the other end of the bottom support, a support foot block is vertically and downwardly fixedly provided. The support foot block is flush with the lower end surface of the waste chip collection box, and a control box is fixedly hung on the outer side wall of the support foot block; a magnetic chip suction plate is longitudinally slidably provided between the bottom support and the bottom of the clamping base; a clamping operation table is correspondingly inlaid and fixed in the clamping base above the waste chip collection box; an L-shaped pressing seat is longitudinally fixedly installed on the clamping base to the left of the clamping operation table through bolts, and a driving clamping frame is longitudinally fixedly installed in the middle of the clamping base to the right of the operation table. A "C"-shaped clamping seat is also horizontally slidably installed on the clamping base between the driving clamping frame and the clamping operation table.

[0006] Optionally, a horizontal moving stroke hole is vertically penetrated through the clamping base below the driving clamping frame; two horizontal clamping guide rails are symmetrically fixedly installed in the front and back at the position corresponding to the clamping seat on the top plane of the clamping base. The lower end of the clamping seat is slidably installed on the clamping guide rail through a slider; a guide sleeve block is fixedly provided on the left side of the back side wall of the clamping base behind the clamping operation table.

[0007] Optionally, a cavity communicating with the upper inner cavity of the waste chip collection box is provided in the bottom support to the left of the clamping operation table, and a closed bearing plate is laid on the bottom support to the right of the clamping operation table. The lower end surface of the magnetic chip suction plate is tangent to the bearing plate in a sliding manner. Concave bearing grooves are respectively provided on the side walls at the front and back of the bottom support, and the front and back ends of the magnetic chip suction plate are longitudinally slidably placed in the bearing grooves; a wedge groove is provided on the inner side of the bottom support to the left of the clamping operation table.

[0008] Optionally, the inner cavity bottom surface of the waste chip collection box is inclined from the rear end to the front side opening. An air supply pipe is provided at the middle position of the back side wall of the waste chip collection box. The front end of the air supply pipe located in the inner cavity of the waste chip collection box is in the shape of a duck tongue cap. A blower wheel is rotatably connected in the inner cavity of the air supply pipe through a support frame. The rear end of the rotating shaft of the blower wheel is connected to a driven gear, and the driven gear is located at the rear side of the waste chip collection box.

[0009] Optionally, a driving motor is provided at the left end of the driving clamping frame. A lead screw is horizontally rotatably installed at the upper middle of the driving clamping frame. The left end of the lead screw is fixedly connected to the rotating shaft of the driving motor through a coupling. A limit switch is fixedly installed at the lower end position inside the right end frame body of the driving clamping frame. When the limit switch is triggered by being squeezed, the driving motor stops working.

[0010] Optionally, the clamping operation table is a stainless steel tabletop structure, and waste chip leakage holes vertically penetrating through are evenly spaced longitudinally on the clamping operation table. The waste chip leakage holes are in the shape of a funnel with wide upper and lower ends and a narrow middle part.

[0011] Optionally, a pad is fixedly provided on one side of the abutting seat close to the clamping operation table, and a longitudinal strip-shaped protrusion with uniform intervals is provided on the inner side of the pad close to the clamping operation table.

[0012] Optionally, a connecting shaft block is fixed upwardly on the middle part of the clamping seat, and a guide rod is fixed vertically to the right on the right end side wall of the connecting shaft block, the guide rod is horizontally opposite to the limit switch, and a limit stop ring A and a limit stop ring B are sleeved on the guide rod, and the limit stop ring A and the limit stop ring B are fixed to the guide rod by a tightening bolt; at least four buffer guide rails are provided parallel to each other at the front and back of the left side of the top plane of the clamping seat, and a sliding clamping seat plate is installed on every two buffer guide rails through a slider for transverse sliding, and a boss-shaped guide buffer plate is fixed vertically upward at the right end edge of the top plane of the sliding clamping seat plate, and a buffer guide rod is vertically slidably inserted in the guide buffer plate. The rear end of the rod is vertically fixedly connected with a buffer guide seat, the lower end of the buffer guide seat is fixedly connected to the clamping seat, a buffer spring is mounted on the buffer guide rod between the buffer guide seat and the guide buffer plate, and a stop cap is screwed on the buffer guide rod on the left side of the guide buffer plate; the middle part of the left end of the sliding clamping plate is rotatably connected to the vertical clamping plate through a pin shaft, and a semicircular rotating guide rod is fixedly installed on the middle part of the right end surface of the clamping plate, and the right end of the rotating guide rod passes through the middle part of the pin shaft at the connection between the sliding clamping plate and the clamping plate, and the rotating guide rods on the left and right sides of the pin shaft are respectively mounted with curved springs, and the left end side wall of the clamping plate is provided with vertical anti-slip strips with uniform spacing.

[0013] Optionally, a connecting plate is vertically butted against the middle part of the right end of the magnetic chip suction plate, a connecting pull plate is vertically fixed upward on the right end of the connecting plate, the connecting pull plate passes upward through the movable stroke hole, the connecting pull plate is vertically slidably connected to the guide rod, and the connecting pull plate is located between the limit stop ring A and the limit stop ring B, and the upper end of the connecting pull plate is also screwed to the screw rod for vertical rotation; an insulating wedge block is butt-jointed with bolts on the left end face of the magnetic chip suction plate, and the left end face of the insulating wedge block is rightward The lower beveled structure has an insulating wedge block that fits with the wedge groove; the left and right ends of the magnetic chip suction plate are respectively fixed vertically upward with side guard plates, and the inner walls of the side guard plates are tangent to the side walls of the clamping base in a sliding manner; the left end of the bottom of the rear side guard plate is horizontally fixed to the left with a follower gear plate, and the lower end face of the follower gear plate is a tooth groove, and the tooth groove of the follower gear plate is meshed with the driven gear, and a directional guide rod is fixed vertically to the left on the left end face of the follower gear plate, and the directional guide rod slides vertically through the guide sleeve block.

[0014] The present invention provides a workpiece clamping device for a vertical machining center, which has the following beneficial effects: 1. The waste chip leakage hole in the present invention is a funnel-shaped structure that is wide at both ends and narrow in the middle. Waste chips can be collected and dropped through the waste chip leakage hole. Due to the special structure of the waste chip leakage hole, the waste chips can fall into the waste chip leakage hole and be attracted by the magnetic chip suction plate closed at the lower end, so that the waste chips can be firmly stored in the waste chip leakage hole. When the magnetic chip suction plate is withdrawn to the right, as the magnetic chip suction plate is withdrawn, the waste chips in the waste chip leakage hole will fall into the waste chip collection box below for collection and cleaning. When the magnetic chip suction plate is reinserted again, the clamping operating table is in a clean state again, which will not affect the clamping and fixing of the next machine tool processing accessories, thereby improving the clamping efficiency of the machine tool processing accessories, and realizing magnetic operation and continuous welding production.

[0015] 2. The waste collection box in the present invention can be used to collect waste chips falling from above, and quickly discharge the waste chips by tilting the bottom surface forward and downward, and in conjunction with the air supply wheel and the air supply pipe, it can achieve the effect of forward air supply and cleaning during the withdrawal of the magnetic chip suction plate, so that when the magnetic chip suction plate is withdrawn, the waste chips in the waste collection box and the falling waste chips can be quickly transported forward for cleaning, so as to improve the cleaning effect of the waste collection box.

[0016] 3. When the magnetic chip suction plate of the present invention is under the clamping operating table, on the one hand, the waste chips generated by machine tool cutting or drilling can be adsorbed by magnetic attraction, so as to achieve the effect of clean adsorption, which can ensure that the machine tool processing accessories can continue to operate for a long time and reduce the frequency of cleaning and maintenance. On the other hand, it can strengthen the supporting force at the clamping operating table, so that the clamping operating table part can have a stronger load-bearing capacity.

[0017] 4. In the present invention, an insulating wedge is connected to the left end face of the magnetic chip suction plate by bolts. The left end face of the insulating wedge is a structure beveled to the lower right. The insulating wedge fits with the wedge groove, so that when the magnetic chip suction plate is withdrawn to the right, the waste chips and the insulating wedge have no adsorption force. The outer end face of the insulating wedge is a beveled surface, which can ensure that the waste chips fall smoothly, thereby improving the cleaning effect of the waste chips.

[0018] 5. The side guard plates in the present invention can close and stop the front and rear sides of the clamping base to prevent waste chips from splashing out during welding. When the driving motor is working, it can drive the screw to rotate, and the screw can drive the magnetic chip suction plate to move horizontally through the connecting pull plate. The magnetic chip suction plate moves to the left first, and when the connecting pull plate contacts the limit stop ring B, it drives the clamping seat to move partially to the left, so that the machine tool processing accessories that need to be clamped can be clamped, and the waste chips of the machine tool processing accessories in the clamping state can be automatically adsorbed. When the magnetic chip suction plate moves to the right, the connecting pull plate contacts the limit stop ring A, so that the clamping seat moves to the right and withdraws, and the workpiece can be taken out, and the movements are coordinated and orderly.

[0019] 6. In the present invention, since the clamping plate can rotate a certain angle on the sliding clamping base plate, it can better fit in the process of clamping the machine tool processing accessories with special-shaped structures. In addition, through the cooperation of four buffer guide rods and buffer springs, the machine tool processing accessories can be evenly stressed during the clamping process, avoiding the problem of protruding parts being excessively clamped and sunken. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture: Figure 1 It is a schematic diagram of the upper right front axial structure of an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the upper left rear axial view of an embodiment of the present invention.

[0024] Figure 3 It is a schematic diagram of the lower right front axial structure of an embodiment of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the clamping welding operation state of an embodiment of the present invention.

[0026] Figure 5 It is a schematic diagram of the axial structure of the clamping seat part of an embodiment of the present invention in the upwardly moved and separated state.

[0027] Figure 6 It is a schematic diagram of the front axle structure of the clamping seat part of an embodiment of the present invention.

[0028] Figure 7 It is a schematic diagram of the rear axle structure of the clamping seat part of an embodiment of the present invention.

[0029] Figure 8 It is a schematic axial structural diagram of a magnetic chip suction plate and a clamping base in a state of being separated in an embodiment of the present invention.

[0030] Fig. 9 It is a schematic diagram of the axial structure of an embodiment of the present invention when the base and the clamping base are separated.

[0031] Fig.10 It is a schematic diagram of the axial structure of part of the waste collection box of an embodiment of the present invention.

[0032] Fig.11 It is a schematic axial structural diagram of a clamping operating table in a partially half-cut and separated state according to an embodiment of the present invention.

[0033] List of reference numerals 1. Clamping base; 101. Moving stroke hole; 102. Clamping guide rail; 103. Guide sleeve block 2. Bottom support; 201. Support foot block; 202. Control box; 203. Bearing plate; 204. Bearing groove; 205. Wedge groove 3. Scrap collection box; 301. Air supply pipe; 302. Air supply wheel; 303. Driven gear 4. Driving clamping frame; 401. Driving motor; 402. Lead screw; 403. Limit switch 5. Clamping operation table; 501. Scrap leakage hole 6. Tightening seat; 601. Pad plate 7. Clamping seat; 701. Connecting shaft block; 702. Guide rod; 70201. Limit retaining ring A; 70202. Limit retaining ring B; 703. Buffer guide rail; 704. Buffer guide seat; 705. Buffer guide rod; 706. Buffer spring; 707. Sliding clamping seat plate; 708. Guide buffer plate; 709. Clamping plate; 70901. Rotating guide rod; 70902. Curved spring 8. Magnetic chip suction plate; 801. Connecting patch plate; 802. Insulating wedge block 803; Connecting pull plate; 804. Side guard plate; 805. Follow-up tooth plate; 806. Directional guide rod Detailed implementation manners

[0034] In order to make the objectives, solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the specific embodiments of the present invention.

[0035] Please refer to Figures 1 to 11 as shown in Embodiment 1: The present invention provides a workpiece clamping device for a vertical machining center, including a clamping base 1; the clamping base 1 is a rectangular plate-like structure, a bottom support 2 is provided at the bottom of the clamping base 1, a scrap collection box 3 with an opening at the front side is fixedly butted at one end bottom of the bottom support 2, and a support foot block 201 is vertically and downwardly fixedly provided at the other end bottom of the bottom support 2. The support foot block 201 is flush with the lower end surface of the scrap collection box 3, and a control box 202 is fixedly hung on the outer end side wall of the support foot block 201; a magnetic chip suction plate 8 is longitudinally slidably provided between the bottom support 2 and the bottom of the clamping base 1; a clamping operation table 5 is fixedly embedded in the clamping base 1 above the scrap collection box 3; a C-shaped tightening seat 6 is longitudinally fixedly installed on the clamping base 1 on the left side of the clamping operation table 5 through bolts, and a driving clamping frame 4 is longitudinally fixedly installed in the middle of the clamping base 1 on the right side of the operation table 5. A C-shaped clamping seat 7 is also horizontally slidably installed on the clamping base 1 between the driving clamping frame 4 and the clamping operation table 5.

[0036] Among them, Figure 1 As shown, the clamping base 1 below the driving clamping frame 4 is provided with a transverse movable travel hole 101 extending through the upper and lower parts of the clamping base 1, which can allow the connecting pull plate 803 to slide transversely.

[0037] Two transverse clamping rails 102 are symmetrically fixedly installed on the top plane of the clamping base 1 at the position corresponding to the clamping seat 7. The lower end of the clamping seat 7 is slidably installed on the clamping rail 102 through a slider. The clamping seat 7 can slide laterally on the clamping rail 102, thereby achieving clamping and fixing of machine tool processing accessories.

[0038] Among them, the base support 2 on the left side of the clamping operating table 5 is provided with a cavity connected to the upper inner cavity of the waste chip collection box 3, and a closed carrying plate 203 is laid on the base support 2 on the right side of the clamping operating table 5, and the lower end surface of the magnetic chip suction plate 8 is tangent to the carrying plate 203 in a sliding manner. Concave carrying grooves 204 are respectively provided on the side walls on the front and rear sides of the base support 2, and the front and rear ends of the magnetic chip suction plate 8 are longitudinally slid in the carrying grooves 204; a wedge groove 205 is provided on the inner side of the base support 2 on the left side of the clamping operating table 5, and the magnetic chip suction plate 8 can slide horizontally between the base support 2 and the clamping base 1. When the magnetic chip suction plate 8 is under the clamping operating table 5, on the one hand, the waste chips generated by the machine tool processing can be adsorbed by magnetic attraction, so as to achieve the effect of cleaning and adsorption, which can ensure that the machine tool processing accessories can continue to operate for a long time and reduce the frequency of cleaning and maintenance. On the other hand, it can strengthen the supporting force at the clamping operating table 5, so that the clamping operating table 5 part can have a stronger bearing capacity.

[0039] The rear end of the inner cavity bottom surface of the waste collection box 3 is inclined toward the front opening, and an air supply pipe 301 is provided at the middle position of the back side wall of the waste collection box 3. The front end of the air supply pipe 301 is located in the inner cavity of the waste collection box 3 and is a duckbill cap-shaped structure, which can prevent waste from entering the air supply pipe 301. The inner cavity of the air supply pipe 301 is rotatably connected with an air supply wheel 302 through a support frame, and the rear end of the rotating shaft of the air supply wheel 302 is backwardly connected with a driven gear 303, which is located at the rear side of the waste collection box 3. The driven gear 303 is located at the rear side of the waste collection box 3, and the waste collection box 3 can be used to collect waste falling from above, and quickly export the waste by tilting the bottom surface toward the front and bottom, and cooperate with the air supply wheel 302 and the air supply pipe 301 to achieve the effect of forward air supply cleaning during the withdrawal of the magnetic suction plate 8, so as to realize the rapid forward transportation and cleaning of the waste in the waste collection box 3 and the falling waste when the magnetic suction plate 8 is withdrawn, so as to improve the cleaning effect of the waste collection box 3.

[0040] Among them, a driving motor 401 is provided at the left end of the driving clamping frame 4, a screw rod 402 is installed at the upper middle end of the driving clamping frame 4 for horizontal rotation, the left end of the screw rod 402 is fixedly connected to the rotating shaft of the driving motor 401 through a coupling, and a limit switch 403 is fixedly installed at the lower end position of the inner side of the right end frame body of the driving clamping frame 4. When the limit switch 403 is squeezed and triggered, the driving motor 401 stops working, and a connecting plate 801 is vertically docked at the middle of the right end of the magnetic chip suction plate 8, and a connecting pull plate 801 is fixed vertically upward at the right end of the connecting plate 801 The connecting plate 803 passes upward through the movable stroke hole 101, the connecting plate 803 is connected to the guide rod 702 by vertical sliding, and the connecting plate 803 is located between the limit stop ring A70201 and the limit stop ring B70202, and the upper end of the connecting plate 803 is also screwed to the screw rod 402 for vertical rotation; the left end surface of the magnetic suction plate 8 is connected with an insulating wedge block 802 by bolts, and the left end surface of the insulating wedge block 802 is a structure that is beveled to the lower right, and the insulating wedge block 802 fits with the wedge groove 205, which can be When the magnetic chip suction plate 8 is withdrawn to the right, the waste chips and the insulating wedge block 802 have no adsorption force, and the outer end surface of the insulating wedge block 802 is a beveled surface, which can smoothly ensure that the waste chips fall down, thereby improving the cleaning effect of the waste chips; the left and right ends of the magnetic chip suction plate 8 are respectively fixed vertically upward with side guard plates 804, and the inner side walls of the side guard plates 804 are tangent to the side walls of the clamping base 1 in a sliding manner. The side guard plates 804 can close and stop the front and rear sides of the clamping base 1 to prevent waste chips from splashing out during welding. When the driving motor 401 is working, it can drive the screw rod 402 to rotate, and the screw The rod 402 can drive the magnetic chip suction plate 8 to move horizontally through the connecting pull plate 803. The magnetic chip suction plate 8 moves to the left first, and when the connecting pull plate 803 contacts the limit stop ring B70202, it drives the clamping seat 7 to move partially to the left, so that the machine tool processing accessories that need to be welded can be clamped, and the waste chips of the machine tool processing accessories can be automatically adsorbed when they are clamped and welded. When the magnetic chip suction plate 8 moves to the right, the connecting pull plate 803 contacts the limit stop ring A70201, so that the clamping seat 7 moves to the right and withdraws, and the workpiece can be taken out, and the movements are coordinated and orderly.

[0041] Among them, the clamping operation table 5 is a stainless steel table top structure, and the clamping operation table 5 is provided with waste chip leakage holes 501 that run through the upper and lower parts at uniform intervals in the longitudinal direction. The waste chip leakage holes 501 are a funnel-shaped structure that is wide at both ends and narrow in the middle. Waste chips can be collected and dropped through the waste chip leakage holes 501. Due to the special structure of the waste chip leakage holes 501, the waste chips can fall into the waste chip leakage holes 501 and be attracted by the magnetic chip suction plate 8 closed at the lower end, so that the waste chips can be firmly stored in the waste chip leakage holes 501. When the magnetic chip suction plate 8 is withdrawn to the right, as the magnetic chip suction plate 8 is withdrawn, the waste chips in the waste chip leakage holes 501 will fall into the waste chip collection box 3 below for collection and cleaning. When the magnetic chip suction plate 8 is inserted back again, the clamping operation table 5 is in a clean state again, which will not affect the clamping and fixation of the next machine tool processing accessories, thereby improving the clamping efficiency of the machine tool processing accessories.

[0042] A pad 601 is fixedly provided on one side of the abutting seat 6 close to the clamping operation table 5 , and a longitudinal strip-shaped protrusion with uniform intervals is provided on the inner side of the pad 601 close to the clamping operation table 5 , which can be used to abut against the machine tool processing accessories to be clamped.

[0043] Embodiment 2: like Figure 5-Figure 7As shown, the present invention provides a workpiece clamping device for a vertical machining center, which also includes a connecting shaft block 701 fixed upwardly in the middle of a clamping seat 7, a guide rod 702 fixed vertically to the right on the right end side wall of the connecting shaft block 701, the guide rod 702 is horizontally opposite to the limit switch 403, and a limit stop ring A70201 and a limit stop ring B70202 are sleeved on the guide rod 702, and the limit stop ring A70201 and the limit stop ring B70202 are fixed to the guide rod 702 by tightening bolts; the top plane of the clamping seat 7 is on the left side. At least four buffer guide rails 703 are arranged parallel to each other in the front and back, and a sliding clamp seat plate 707 is installed on every two buffer guide rails 703 through a slider for horizontal sliding. A boss-shaped guide buffer plate 708 is fixed vertically upward at the right end edge of the top plane of the sliding clamp seat plate 707. A buffer guide rod 705 is vertically slidably inserted in the guide buffer plate 708. The rear end of the buffer guide rod 705 is vertically fixedly connected to a buffer guide seat 704. The lower end of the buffer guide seat 704 is fixedly connected to the clamping seat 7. The buffer guide seat 704 and the guide buffer A buffer spring 706 is mounted on the buffer guide rod 705 between the punch plates 708, and a stop cap is screwed on the buffer guide rod 705 on the left side of the guide buffer plate 708; the middle part of the left end of the sliding clamping seat plate 707 is rotatably connected to a vertical clamping plate 709 through a pin shaft, and a semicircular rotating guide rod 70901 is fixedly installed in the middle part of the right end surface of the clamping plate 709, and the right end of the rotating guide rod 70901 passes through the middle part of the pin shaft at the connection between the sliding clamping seat plate 707 and the clamping plate 709, and the rotating guide rods 70901 on the left and right sides of the pin shaft are connected. 0901 is respectively provided with a curved spring 70902, and the left end side wall of the clamping plate 709 is provided with a vertical anti-slip strip with uniform intervals. Since the clamping plate 709 can be rotated at a certain angle on the sliding clamping seat plate 707, it can better fit in the process of clamping the machine tool processing accessories with special-shaped structures, and the four buffer guide rods 705 and the buffer springs 706 cooperate with each other, so that the machine tool processing accessories can be evenly stressed during the clamping process, avoiding the problem of the protruding parts being excessively clamped and sunken.

[0044] Embodiment three: like Figure 8 and Fig.10As shown, the present invention provides a workpiece clamping device for a vertical machining center, which also includes a follower tooth plate 805 fixedly connected to the left horizontally at the bottom left end of the side guard plate 804 on the rear side, and the lower end surface of the follower tooth plate 805 is a tooth groove, and the tooth groove of the follower tooth plate 805 is meshed with the driven gear 303, and a directional guide rod 806 is fixedly provided on the left end surface of the follower tooth plate 805 vertically to the left, and a guide sleeve block 103 is fixedly provided on the left side wall of the back of the clamping base 1 on the rear side of the clamping operating table 5, and the directional guide rod 806 slides vertically through the guide sleeve block 103. Through the cooperation of the directional guide rod 806 and the guide sleeve block 103, the follower tooth plate 805 can slide left and right with the side guard plate 804, and in the process of sliding to the right, the air supply wheel 302 can rotate to transport airflow from the back to the front, so as to achieve the effect of rapid slag cleaning, and realize the purpose of withdrawing the magnetic chip suction plate 8, that is, cleaning slag and chips.

[0045] Specific usage and function of this embodiment: During the use of the present invention, the machine tool processing parts to be welded can be placed on the clamping operation table 5, and the drive motor 401 can be controlled to work. The connecting pull plate 803 can be driven to partially move left through the screw rod 402, and the magnetic chip suction plate 8 moves left first. When the connecting pull plate 803 contacts the limit stop ring B70202, it drives the clamping seat 7 to partially move left, so that the machine tool processing parts that need to be clamped can be clamped. When the magnetic chip suction plate 8 moves to the right, the connecting pull plate 803 contacts the limit stop ring A70201, so that the clamping seat 7 moves to the right and withdraws, and the workpiece can be taken out. The clamping operation table 5 is a stainless steel tabletop structure. 5 is provided with waste chip leakage holes 501 which are evenly spaced vertically and pass through it. The waste chip leakage holes 501 are funnel-shaped structures which are wide at the upper and lower ends and narrow in the middle. Waste chips can be collected and dropped through the waste chip leakage holes 501. Due to the special structure of the waste chip leakage holes 501, the waste chips can fall into the waste chip leakage holes 501 and be attracted by the magnetic chip suction plate 8 which is closed at the lower end, so that the waste chips can be firmly stored in the waste chip leakage holes 501. When the magnetic chip suction plate 8 is withdrawn to the right, as the magnetic chip suction plate 8 is withdrawn, the waste chips in the waste chip leakage holes 501 will fall into the waste chip collection box 3 below for collection and cleaning. When the magnetic chip suction plate 8 is reinserted again, the clamping operation table 5 is in a clean state again.

[0046] In this article, there are a few points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0047] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0048] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A workpiece clamping device for a vertical machining center, comprising: Clamping base (1); the clamping base (1) is a rectangular plate-like structure, characterized in that a bottom support (2) is provided at the bottom of the clamping base (1), and a waste chip collection box (3) with an opening on the front side is fixedly docked at the bottom of one end of the bottom support (2), while a support foot block (201) is vertically and downwardly fixedly provided at the bottom of the other end of the bottom support (2), and the support foot block (201) is flush with the lower end surface of the waste chip collection box (3), and a control box (202) is fixedly hung on the outer side wall of the support foot block (201); a magnetic chip suction plate (8) is longitudinally slidably arranged between the bottom support (2) and the bottom of the clamping base (1); a clamping operation table (5) is correspondingly inlaid and fixed in the clamping base (1) above the waste chip collection box (3); an L-shaped pressing seat (6) is longitudinally fixedly installed on the clamping base (1) on the left side of the clamping operation table (5) through bolts, and a driving clamping frame (4) is longitudinally fixedly installed in the middle of the clamping base (1) on the right side of the operation table (5), and a "C"-shaped clamping seat (7) is also horizontally slidably installed on the clamping base (1) between the driving clamping frame (4) and the clamping operation table (5).

2. A workpiece clamping device for a vertical machining center according to claim 1, characterized in that: A horizontal moving stroke hole (101) is vertically penetrated through the clamping base (1) below the driving clamping frame (4) of the clamping base (1); two horizontal clamping guide rails (102) are symmetrically fixedly installed on the top plane of the clamping base (1) corresponding to the position where the clamping seat (7) is located, and the lower end of the clamping seat (7) is slidably installed on the clamping guide rail (102) through a slider; a guide sleeve block (103) is fixedly provided on the back side wall of the clamping base (1) on the left side of the clamping operation table (5) near the left side.

3. The workpiece clamping device for a vertical machining center according to claim 1, characterized in that: A cavity communicating with the upper inner cavity of the waste chip collection box (3) is provided in the bottom support (2) on the left side of the clamping operation table (5), a closed carrying plate (203) is laid on the bottom support (2) on the right side of the clamping operation table (5), the lower end surface of the magnetic chip suction plate (8) is slidably tangent to the carrying plate (203), concave carrying grooves (204) are respectively provided on the front and rear side walls of the bottom support (2), and the front and rear ends of the magnetic chip suction plate (8) are longitudinally slidably placed in the carrying grooves (204); a wedge groove (205) is provided inside the bottom support (2) on the left side of the clamping operation table (5).

4. The workpiece clamping device for a vertical machining center according to claim 1, characterized in that: The inner cavity bottom surface of the waste chip collection box (3) is inclined from the rear end to the front side opening, an air supply pipe (301) is provided in the middle of the back side wall of the waste chip collection box (3), the front end of the air supply pipe (301) located in the inner cavity of the waste chip collection box (3) is in a duck tongue cap-like structure, an air supply wheel (302) is rotatably connected in the inner cavity of the air supply pipe (301) through a support frame, the rear end of the rotating shaft of the air supply wheel (302) is connected backward with a driven gear (303), and the driven gear (303) is located at the rear side of the waste chip collection box (3).

5. The workpiece clamping device for a vertical machining center according to claim 1, characterized in that: The left end of the driving clamping frame (4) is provided with a driving motor (401), and the middle upper end of the driving clamping frame (4) is laterally rotatably mounted with a screw rod (402), the left end of the screw rod (402) is fixedly connected to the rotating shaft of the driving motor (401) via a coupling, and a limit switch (403) is fixedly mounted at the lower end position of the inner side of the frame body of the right end of the driving clamping frame (4), and when the limit switch (403) is squeezed and triggered, the driving motor (401) stops working.

6. The workpiece clamping device for a vertical machining center according to claim 1, characterized in that: The clamping operation table (5) is a stainless steel tabletop structure, and waste chip leakage holes (501) are evenly spaced vertically on the clamping operation table (5), and the waste chip leakage holes (501) are funnel-shaped structures that are wide at the upper and lower ends and narrow in the middle.

7. The workpiece clamping device for a vertical machining center according to claim 1, characterized in that: A pad (601) is fixedly provided on one side of the abutting seat (6) close to the clamping operation table (5), and longitudinal strip-shaped protrusions with uniform intervals are provided on the inner side of the pad (601) close to the clamping operation table (5).

8. The workpiece clamping device for a vertical machining center according to claim 2, characterized in that: A connecting shaft block (701) is fixedly provided upwardly in the middle of the clamping seat (7), a guide rod (702) is fixedly provided vertically to the right on the right end side wall of the connecting shaft block (701), the guide rod (702) is horizontally opposite to the limit switch (403), a limit stop ring A (70201) and a limit stop ring B (70202) are sleeved on the guide rod (702), and the limit stop ring A (70201) and the limit stop ring B (70202) are fixed to the guide rod (702) by tightening bolts. 02); at least four buffer guide rails (703) are provided parallel to each other at the front and rear of the left side of the top plane of the clamping seat (7); a sliding clamping seat plate (707) is installed on every two buffer guide rails (703) through a slider for transverse sliding; a boss-shaped guide buffer plate (708) is fixed vertically upward at the right end edge of the top plane of the sliding clamping seat plate (707); a buffer guide rod (705) is vertically slidably inserted in the guide buffer plate (708); the rear end of the buffer guide rod (705) is vertically fixedly connected to the buffer guide seat (704); the lower end of the buffer guide seat (704) is fixedly connected to the clamping seat (7); a buffer spring (706) is sleeved on the buffer guide rod (705) between the buffer guide seat (704) and the guide buffer plate (708); a stop cap is screwed on the buffer guide rod (705) on the left side of the guide buffer plate (708); the middle part of the left end of the sliding clamping seat plate (707) is rotatably connected to a vertical clamping seat (704) through a pin shaft. Plate (709), a semicircular rotating guide rod (70901) is fixedly installed in the middle of the right end surface of the clamping plate (709), the right end of the rotating guide rod (70901) passes through the middle of the pin shaft at the connection between the sliding clamping seat plate (707) and the clamping plate (709), and the rotating guide rods (70901) on the left and right sides of the pin shaft are respectively provided with curved springs (70902), and the left end side wall of the clamping plate (709) is provided with vertical anti-slip strips with uniform intervals.

9. A workpiece clamping device for a vertical machining center according to claim 8, characterized in that: A connecting plate (801) is vertically butted against the middle of the right end of the magnetic chip suction plate (8), and a connecting pull plate (803) is vertically fixed upward on the right end of the connecting plate (801). The connecting pull plate (803) passes upward through the movable stroke hole (101), and the connecting pull plate (803) is vertically slidably connected to the guide rod (702), and the connecting pull plate (803) is located between the limit stop ring A (70201) and the limit stop ring B (70202). The upper end of the connecting pull plate (803) is also vertically rotatably screwed to the lead screw (402); an insulating wedge block (802) is butt-jointed to the left end surface of the magnetic chip suction plate (8) via bolts, and the left end surface of the insulating wedge block (802) is The structure is beveled downward to the right, and the insulating wedge block (802) is matched with the wedge groove (205); the left and right ends of the magnetic chip suction plate (8) are respectively fixed with side guard plates (804) vertically upward, and the inner wall of the side guard plate (804) is tangential to the side wall of the clamping base (1); the left end of the bottom of the rear side guard plate (804) is fixedly connected with a follower tooth plate (805) horizontally to the left, and the lower end surface of the follower tooth plate (805) is a tooth groove, and the tooth groove of the follower tooth plate (805) is meshed with the driven gear (303), and a directional guide rod (806) is fixed vertically to the left on the left end surface of the follower tooth plate (805), and the directional guide rod (806) vertically slides through the guide sleeve block (103).

Images