Limiting and clamping mechanism for machining center

Abstract

The utility model relates to the technical field of machining center equipment, and discloses a limiting and clamping mechanism for a machining center, which comprises a working table, a first limiting frame is arranged above the working table, a second limiting frame is arranged on one side of the first limiting frame, the second limiting frame and the first limiting frame are the same in structure, and the second limiting frame is arranged on the working table. A clamping plate is arranged in the middle of the first limiting frame and the middle of the second limiting frame, and a protection mechanism is arranged on the inner side of the clamping plate. According to the limiting and clamping mechanism for the machining center, the protection mechanism is arranged, so that in the limiting and clamping operation of machining center equipment on a workpiece, the design of a rubber protection pad provides a certain protection effect for the clamping face of the workpiece, the situation that the clamping face of the workpiece is abraded due to too large stress can be avoided, and a worker can operate the limiting and clamping mechanism through operation; and a rubber protection pad is quickly disassembled and assembled, so that a worker can conveniently replace the abraded rubber protection pad, and the use protection performance and practicability of the limiting and clamping mechanism are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to processing center equipment technical field, concretely is a kind of limit clamping mechanism for machining center. BACKGROUND

[0002] With the rapid development of production and manufacturing industry and the continuous emergence of new technology, numerical control machining center has gradually popularized application, become commonly used equipment in mechanical processing industry, numerical control machining center needs to use limit clamping mechanism to position and clamp the product to be processed in production process, to ensure product machining precision.

[0003] The prior art patent literature with the authorization announcement No.CN220006903U provides a kind of limit clamping mechanism for machining center, the utility model is limited to the both ends of bar-shaped pipe (square tube or circular tube) by a square plate, the both ends of bar-shaped pipe are fixed by two sets of clamping plate after being limited, solve the problem of pipe material shaking caused by traditional single-station clamping, and it is convenient to clamp different diameter bar-shaped pipe, convenient operation, reduce the time of clamping when processing, to improve work efficiency.

[0004] But the limit clamping mechanism for machining center in prior art is not convenient to provide good protection effect for the clamping surface of workpiece when using, the existing limit clamping mechanism is positioned to workpiece, to ensure the stability of workpiece clamping, will exert certain force to the clamping surface of workpiece, if not buffered protection, will be easy to cause abrasion to the contact surface of workpiece, and then directly affect the processing quality of workpiece, poor practicality and protection. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of limit clamping mechanism for machining center, to solve the problem that the limit clamping mechanism for machining center in prior art is not convenient to provide good protection effect for the clamping surface of workpiece when using in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of limit clamping mechanism for machining center, including workbench, the upper of workbench is provided with first limit frame, the side of first limit frame is provided with second limit frame, the second limit frame is same with first limit frame structure, the middle part of first limit frame and second limit frame is provided with clamping plate, the inner side of clamping plate is provided with protection mechanism, the inside of first limit frame and second limit frame is provided with driving mechanism, the upper surface of workbench is provided with dismounting mechanism;

[0007] The protection mechanism includes rubber protection pad, the rubber protection pad is movably connected to the inner side of clamping plate, the outer surface of rubber protection pad is fixedly connected with plug-in block, the inner side of clamping plate is fixedly provided with plug-in slot, the plug-in block is movably connected with plug-in slot.

[0008] Preferably, the driving mechanism includes a motor, the motor is fixedly installed on one side inside the first limiting frame and the second limiting frame, and the transmission end of the motor is fixedly connected with a double-sided screw rod.

[0009] Preferably, the outer surface of the double-sided screw rod is connected with a moving block through threads, one side of the moving block is fixedly connected with a supporting rod, the end of the supporting rod away from the moving block is fixedly connected with a plug-in rod, and the outer side of the clamping plate is fixedly installed with a plug-in sleeve.

[0010] Preferably, the dismounting mechanism includes a fixed supporting plate, the fixed supporting plate is fixedly installed on one side of the upper surface of the workbench, and the first limiting frame is located on the side of the fixed supporting plate away from the workbench.

[0011] Preferably, the middle part of the upper surface of the workbench is fixedly provided with a sliding groove, one side inside the sliding groove is fixedly installed with an electric push rod, and the transmission end of the electric push rod is fixedly connected with a pushing rod.

[0012] Preferably, the end of the pushing rod away from the electric push rod is fixedly connected with a sliding block, the upper surface of the sliding block is fixedly installed with a movable supporting plate, and the side of the movable supporting plate away from the sliding block is fixedly connected with the second limiting frame.

[0013] Preferably, the outer surface of the plug-in sleeve is movably connected with a fixing bolt, the fixing bolt movably penetrates through the plug-in sleeve and is movably connected with the plug-in rod.

[0014] Compared with the prior art, the machining center limiting and clamping mechanism has the advantages that:

[0015] 1. The machining center limiting and clamping mechanism is provided with a protection mechanism, so that the design of the rubber protection pad provides a certain protection effect for the clamping surface of the workpiece in the limiting and clamping operation of the machining center equipment, the situation that the clamping surface of the workpiece is abraded due to excessive stress can be avoided, the rubber protection pad can be quickly dismounted by the staff through operation, the staff can conveniently replace the abraded rubber protection pad, and the protection and practicability of the limiting and clamping mechanism are improved.

[0016] 2. The machining center limiting and clamping mechanism is provided with a dismounting mechanism, so that the staff can quickly dismount the clamping plate by operating the fixing bolt when the limiting and clamping mechanism is used, the staff can conveniently replace clamping plates of different specifications and shapes, the limiting and clamping mechanism can clamp different workpieces to ensure the stability of the workpieces in the machining operation, and the applicability of the limiting and clamping mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the utility model first limit frame;

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model clamping plate;

[0020] Figure 4 It is the partial detail enlarged structure schematic view of the utility model dismounting mechanism.

[0021] In the drawing: 1, workbench;2, first limit frame;3, second limit frame;4, clamping plate;5, protection mechanism;501, rubber protection pad;502, plug-in block;503, plug-in slot;6, driving mechanism;601, motor;602, double-sided screw;603, moving block;604, support rod;7, dismounting mechanism;701, fixed support plate;702, sliding slot;703, electric push rod;704, push rod;705, sliding block;706, movable support plate;707, plug-in sleeve;708, plug-in rod;709, fixed bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figure 1 - Figure 4 The utility model provides a kind of technical scheme: a kind of limit clamping mechanism for machining center, including workbench 1, the top of workbench 1 is provided with first limit frame 2, one side of first limit frame 2 is provided with second limit frame 3, second limit frame 3 and first limit frame 2 structure are same, the middle part of first limit frame 2 and second limit frame 3 is provided with clamping plate 4, the inner side of clamping plate 4 is provided with protection mechanism 5, the inside of first limit frame 2 and second limit frame 3 is provided with driving mechanism 6, the upper surface of workbench 1 is provided with dismounting mechanism 7;

[0024] The protection mechanism 5 comprises a rubber protection pad 501 movably connected to the inner side of the clamping plate 4, the outer surface of the rubber protection pad 501 is fixedly connected with a plug block 502, the inner side of the clamping plate 4 is fixedly provided with a plug groove 503, the plug block 502 is movably connected with the plug groove 503, the rubber protection pad 501 can buffer the force received by the workpiece clamping surface while increasing the friction of the workpiece clamping surface, so as to avoid the situation that the workpiece clamping surface is abraded due to excessive force, and the worker can pull the rubber protection pad 501 to pull out the plug block 502 from the plug groove 503, so that the rubber protection pad 501 is separated from the clamping plate 4, and the worn rubber protection pad 501 can be replaced.

[0025] The driving mechanism 6 comprises a motor 601 fixedly installed on one side inside the first limiting frame 2 and the second limiting frame 3, a transmission end of the motor 601 is fixedly connected with a double-sided screw rod 602, one end of the double-sided screw rod 602 away from the motor 601 is connected with the limiting frame 2 and the second limiting frame 3 through a bearing, an outer surface of the double-sided screw rod 602 is connected with a moving block 603 through a thread, one side of the moving block 603 is fixedly connected with a supporting rod 604, one end of the supporting rod 604 away from the moving block 603 is fixedly connected with a plug-in rod 708, an outer side of the clamping plate 4 is fixedly installed with a plug-in sleeve 707, the dismounting mechanism 7 comprises a fixed supporting plate 701 fixedly installed on one side of an upper surface of the workbench 1, the first limiting frame 2 is located on one side of the fixed supporting plate 701 away from the workbench 1, a sliding groove 702 is fixedly arranged on a middle part of the upper surface of the workbench 1, one side inside the sliding groove 702 is fixedly installed with an electric push rod 703, a transmission end of the electric push rod 703 is fixedly connected with a push rod 704, one end of the push rod 704 away from the electric push rod 703 is fixedly connected with a sliding block 705, an upper surface of the sliding block 705 is fixedly installed with a movable supporting plate 706, one side of the movable supporting plate 706 away from the sliding block 705 is fixedly connected with the second limiting frame 3, an outer surface of the plug-in sleeve 707 is movably connected with a fixing bolt 709, the fixing bolt 709 movably penetrates through the plug-in sleeve 707 and is movably connected with the plug-in rod 708, when the limiting clamping mechanism is used for workpiece clamping operation of the machining center equipment, an operator places one end of a machining workpiece to the middle part of the two clamping plates 4 on the first limiting frame 2, then drives two groups of moving blocks 603 to move oppositely on the double-sided screw rod 602 through operation of the motor 601, the moving blocks 603 drive the supporting rods 604 to move, the supporting rods 604 drive the plug-in sleeves 707 to move, so that the two clamping plates 4 move to the middle, so that the rubber protective pad 501 fully contacts with the workpiece, and one end of the workpiece is clamped and fixed, then the operator makes the sliding block 705 slide in the sliding groove 702 through operation of the electric push rod 703, the sliding block 705 drives the movable supporting plate 706 to move, so that the two clamping plates 4 on the second limiting frame 3 fully correspond to the other end of the workpiece, the operator clamps and fixes the other end of the workpiece through operation of the motor 601 on the second limiting frame 3, so that the workpiece is stably clamped, and then the numerical control machining center equipment can be used to machine the workpiece, in a long-time use process of the limiting clamping mechanism, the rubber protective pad 501 is worn to a certain extent, when it is necessary to replace the clamping plates 4 of different specifications and shapes, the operator removes the fixing bolt 709 from the plug-in sleeve 707 through operation, then separates the plug-in sleeve 707 from the plug-in rod 708 through pulling of the clamping plate 4, so that the clamping plate 4 can be replaced to meet the clamping use of workpieces of different specifications.

[0026] Working principle: when using the limiting clamping mechanism to carry out workpiece clamping operation of machining center equipment, the worker places one end of the machining workpiece in the middle of the two clamping plates 4 on the first limiting frame 2, then drives the two groups of moving blocks 603 to move on the double-sided screw 602 through the operation of the motor 601, the moving block 603 drives the supporting rod 604 to move, the supporting rod 604 drives the plug-in sleeve 707 to move, so as to drive the two clamping plates 4 to move to the middle, so that the rubber protective pad 501 fully contacts with the workpiece, and one end of the workpiece is clamped and fixed, the rubber protective pad 501 can buffer the force received by the workpiece clamping surface while increasing the friction of the workpiece clamping surface, so as to avoid the case that the workpiece clamping surface is abraded due to excessive force, then the worker moves the sliding block 705 in the sliding groove 702 through the operation of the electric push rod 703, the sliding block 705 drives the movable supporting plate 706 to move, so that the two clamping plates 4 on the second limiting frame 3 fully correspond to the other end of the workpiece, the worker clamps and fixes the other end of the workpiece through the operation of the motor 601 on the second limiting frame 3, realizes the stable clamping of the workpiece, and then the workpiece can be machined by using the numerical control machining center equipment, during the long-time use of the limiting clamping mechanism, the rubber protective pad 501 will be abraded to a certain extent, the worker pulls the rubber protective pad 501 to pull out the plug-in block 502 from the plug-in groove 503, so that the rubber protective pad 501 is separated from the clamping plate 4, and the worn rubber protective pad 501 can be replaced, when it is necessary to replace the clamping plate 4 of different specifications and shapes, the worker removes the fixed bolt 709 from the plug-in sleeve 707 through the operation of the fixed bolt 709, then pulls the plug-in sleeve 707 away from the plug-in rod 708 through the pulling of the clamping plate 4, so as to replace the clamping plate 4 to meet the clamping use of workpieces of different specifications.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application by those skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. A limiting and clamping mechanism for machining center, comprising a worktable (1), characterized in that: The upper portion of the workbench (1) is provided with a first limiting frame (2), one side of the first limiting frame (2) is provided with a second limiting frame (3), the second limiting frame (3) is the same structure as the first limiting frame (2), the middle portion of the first limiting frame (2) and the second limiting frame (3) is provided with a clamping plate (4), the inner side of the clamping plate (4) is provided with a protection mechanism (5), the inside of the first limiting frame (2) and the second limiting frame (3) is provided with a driving mechanism (6), the upper surface of the workbench (1) is provided with a dismounting mechanism (7). The protection mechanism (5) comprises a rubber protection pad (501), the rubber protection pad (501) is movably connected to the inner side of the clamping plate (4), the outer surface of the rubber protection pad (501) is fixedly connected with a plug-in block (502), the inner side of the clamping plate (4) is fixedly provided with a plug-in groove (503), and the plug-in block (502) is movably connected with the plug-in groove (503).

2. The limiting and clamping mechanism for machining center according to claim 1, characterized in that: The driving mechanism (6) comprises a motor (601), the motor (601) is fixedly installed on one side of the inside of the first limiting frame (2) and the second limiting frame (3), the transmission end of the motor (601) is fixedly connected with a double-sided screw (602), and the end, away from the motor (601), of the double-sided screw (602) is connected with the limiting frame (2) and the second limiting frame (3) through a bearing.

3. The center limiting and clamping mechanism according to claim 2, characterized in that: The outer surface of the double-sided screw (602) is connected with a moving block (603) through threads, one side of the moving block (603) is fixedly connected with a supporting rod (604), the end, away from the moving block (603), of the supporting rod (604) is fixedly connected with a plug-in rod (708), and the outer side of the clamping plate (4) is fixedly installed with a plug-in sleeve (707).

4. The center limiting and clamping mechanism according to claim 3, characterized in that: The dismounting mechanism (7) comprises a fixed supporting plate (701), the fixed supporting plate (701) is fixedly installed on one side of the upper surface of the workbench (1), and the first limiting frame (2) is located on the side, away from the workbench (1), of the fixed supporting plate (701).

5. The center limiting and clamping mechanism according to claim 4, characterized in that: The middle portion of the upper surface of the workbench (1) is fixedly provided with a sliding groove (702), one side of the inside of the sliding groove (702) is fixedly installed with an electric push rod (703), and the transmission end of the electric push rod (703) is fixedly connected with a push rod (704).

6. The center limiting and clamping mechanism according to claim 5, characterized in that: The end, away from the electric push rod (703), of the push rod (704) is fixedly connected with a sliding block (705), the upper surface of the sliding block (705) is fixedly installed with a movable supporting plate (706), and the side, away from the sliding block (705), of the movable supporting plate (706) is fixedly connected with the second limiting frame (3).

7. The center limiting and clamping mechanism according to claim 3, characterized in that: The outer surface of the plug-in sleeve (707) is movably connected with a fixing bolt (709), the fixing bolt (709) movably penetrates through the plug-in sleeve (707) and is movably connected with the plug-in rod (708).

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