Self-locking type fixing clamp for numerical control planer

Abstract

The utility model relates to the field of machining, in particular to a fixing clamp for a self-locking numerical control planer. The fixing clamp comprises a device base, a fixing plate is arranged above the device base, a rotating base is arranged in the middle of the upper end face of the fixing plate, a limiting clamp set is fixedly installed at the upper end of the rotating base, and a heightening piece is arranged in a groove formed in the upper end of the limiting clamp set. A pressing strip is placed at the upper end of the heightening piece, and the side end angle of the pressing strip is a round chamfer. When the clamp is used, pushing pressure is provided for the pressing strip through the notch in the inner side end of the pressing plate, so that the pressing strip applies pressure to a workpiece, and as the side end angle of the pressing strip is arranged to be the circular chamfer, the fixed clamping force is changed from surface force supply to linear force supply, the workpiece is conveniently pressed down in the workpiece clamping and fixing process, and the clamping effect is improved. And the workpiece is prevented from jumping up in the machining process to affect the machining precision.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a fixing fixture for a self-locking numerically controlled planer. Background Art

[0002] Traditional planer clamps use a single threaded top press to fix, and during the processing, a single screw is used for clamping. Since the use of the screw is prone to over-fitting during the clamping process, it leads to the offset of the clamping, which is specifically manifested as left and right deflection and the workpiece jumping off the horizontal height. Therefore, those skilled in the art provide a self-locking CNC planer fixing clamp to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a fixing fixture for a self-locking CNC planer, comprising a device base, a fixing plate is arranged above the device base, a rotating base is arranged in the middle of the upper end surface of the fixing plate, a limit clamp group is fixedly installed on the upper end of the rotating base, a groove is opened on the upper end of the limit clamp group to place a heightening member, a pressure strip is placed on the upper end of the heightening member, and a side end angle of the pressure strip is set as a circular chamfer, so that the fixed clamping force is changed from surface force supply to linear force supply, which is convenient for clamping and fixing the workpiece, ensuring that the workpiece is pressed down, and preventing the workpiece from jumping up during the processing, which affects the processing accuracy;

[0004] The limit clamp group includes a sleeve seat, a top seat, an inner groove, a screw, a rotating rod, a sliding mother seat, a pressure plate, a positioning bolt, a movable plate, a movable screw and a positioning block. The top seat and the upper side end of the sliding mother seat are centrally symmetrically provided with a movable plate, a positioning bolt is provided on the movable plate, and the movable plate can rotate in a circle around the positioning bolt. A plurality of screw holes are opened on the movable plate, and corresponding movable screws are provided in the screw holes. A positioning block is threadedly installed on the inner end of the movable screw. The movable screw is engaged with the screw hole on the movable plate by rotating the movable screw, so that the movable screw pushes the positioning block to limit the workpiece, thereby preventing deflection from occurring during the clamping of the workpiece.

[0005] Preferably, a plurality of limiting long grooves are provided at the upper end of the device base, and fixing bolts are arranged at the four corners of the fixing plate. The fixing bolts are inserted into the limiting long grooves to fasten the fixing plate to the device base.

[0006] Preferably, a top seat is fixedly mounted on the left side of the upper end surface of the sleeve, and an inner groove is opened in the middle of the upper end surface of the right side of the sleeve, and a screw is arranged in the inner groove.

[0007] Preferably: the right end of the screw rod passes through the inner groove wall and is fixedly installed with a rotating rod.

[0008] Preferably, a sliding seat capable of directionally sliding is provided in the inner groove, and the sliding seat is sleeved on the screw rod. The screw rod is rotated in the inner groove by rotating the rotating rod, so that the screw rod is meshed with the sliding seat.

[0009] Preferably: a pressure plate is symmetrically bolted on the inner side of the top seat and the upper end of the sliding mother seat, and the pressure plate and the pressure strip are correspondingly arranged. A groove is opened on the inner side of the pressure plate according to the width of the pressure strip, so that the pressure plate can provide a stable thrust to the pressure strip during the pressure process, thereby ensuring the stability of the clamping.

[0010] Technical effects and advantages of the utility model:

[0011] 1. When the utility model is used, the workpiece is placed on the upper end of the rotating base, and the movable plate is rotated around the positioning bolt, so that the positioning block on the movable plate is adjusted according to the size of the workpiece, and the movable screw is rotated to engage with the screw hole on the movable plate, so that the movable screw pushes the positioning block to limit the workpiece, thereby preventing the occurrence of left and right deflection during the clamping process of the workpiece.

[0012] 2. When the utility model is used, the inner end groove of the pressure plate provides pushing pressure for the pressure strip, so that the pressure strip applies pressure to the workpiece. Since the side end angle of the pressure strip is set as a circular chamfer, the fixed clamping force is changed from surface force supply to linear force supply, which is convenient for clamping and fixing the workpiece, ensuring that the workpiece is pressed down, and preventing the workpiece from jumping up during processing and affecting the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure provided by this application;

[0014] Figure 2 It is a structural schematic diagram of the limit clamp group provided by the present application;

[0015] In the figure: 1. Device base; 2. Fixing plate; 3. Limiting long groove; 4. Fixing bolt; 5. Rotating base; 6. Limiting clip group; 7. Heightening piece; 8. Pressure strip;

[0016] 61. sleeve seat; 62. top seat; 63. inner groove; 64. screw rod; 65. rotating rod; 66. sliding mother seat; 67. pressing plate; 68. positioning bolt; 69. movable plate; 610. movable screw rod; 611. positioning block. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0018] See also Figures 1-2 In this embodiment, a self-locking CNC planer fixing fixture is provided, including a device base 1, a plurality of limiting long grooves 3 are opened on the upper end of the device base 1, a fixing plate 2 is arranged above the device base 1, and fixing bolts 4 are arranged at the four corners of the fixing plate 2. The fixing bolts 4 are inserted into the limiting long grooves 3 to fasten the fixing plate 2 on the device base 1, a rotating base 5 is arranged in the middle of the upper end surface of the fixing plate 2, a limiting clamp group 6 is fixedly installed on the upper end of the rotating base 5, a heightening member 7 is arranged on the upper end of the limiting clamp group 6, a pressure strip 8 is placed on the upper end of the heightening member 7, and the side end angle of the pressure strip 8 is set to a circular chamfer, so that the fixed clamping force is changed from surface supply to linear supply, which is convenient for clamping and fixing the workpiece, ensuring that the workpiece is pressed down, and preventing the workpiece from jumping up during the processing, which affects the processing accuracy;

[0019] The limiting clamp group 6 includes a sleeve 61, a top seat 62, an inner groove 63, a screw 64, a rotating rod 65, a sliding mother seat 66, a pressure plate 67, a positioning bolt 68, a movable plate 69, a movable screw 610 and a positioning block 611. The top seat 62 is fixedly installed on the left side of the upper end surface of the sleeve 61, and an inner groove 63 is opened in the middle of the upper end surface of the right side of the sleeve 61. A screw 64 is arranged in the inner groove 63, and a rotating rod 65 is also fixedly installed on the right end of the screw 64 passing through the wall of the inner groove 63. A sliding mother seat 66 that can slide in a direction is limited in the inner groove 63. The sliding mother seat 66 is sleeved on the screw 64. The screw 64 is rotated in the inner groove 63 by rotating the rotating rod 65, so that the screw 64 is engaged with the sliding mother seat 66. A pressure plate 67 is symmetrically bolted on one side of the top seat 62 and the upper end of the sliding mother seat 66. The pressure plate 67 is arranged corresponding to the pressure strip 8, and a groove is opened on the inner side surface of the pressure plate 67 according to the width of the pressure strip 8, so that the pressure plate 67 can provide a stable thrust to the pressure strip 8 during the pressure application process, thereby ensuring the stability of the clamping, and the top seat 62 and the upper side end of the sliding mother seat 66 are centrally symmetrically arranged with a movable plate 69, and a positioning bolt 68 is arranged on the movable plate 69. The movable plate 69 can rotate in a circle around the positioning bolt 68. A plurality of screw holes are opened on the movable plate 69, and corresponding movable screws 610 are arranged in the screw holes. The movable screw 610 is threadedly installed with a positioning block 611 at the inner end. By rotating the movable screw 610 to engage with the screw hole on the movable plate 69, the movable screw 610 pushes the positioning block 611 to limit the workpiece, thereby preventing the occurrence of deflection during the clamping of the workpiece.

[0020] The working principle of the utility model is:

[0021] When the utility model is used, the workpiece is placed on the upper end of the rotating base 5, and the movable plate 69 is rotated around the positioning bolt 68, so that the positioning block 611 on the movable plate 69 is adjusted according to the size of the workpiece, thereby rotating the movable screw 610 to engage with the screw hole on the movable plate 69, so that the movable screw 610 pushes the positioning block 611 to limit the workpiece, thereby preventing the left and right deflection from occurring during the clamping process of the workpiece, and then the screw 64 is rotated in the inner groove 6 3, so that the screw rod 64 meshes with the sliding nut 66, and the sliding nut 66 slides in the inner groove 63 toward the side of the sleeve 61, so that the pressing plate 67 is close to the pressure strip 8, and the inner end notch of the pressing plate 67 provides a pushing pressure for the pressure strip 8, so that the pressure strip 8 applies pressure to the workpiece. Since the side end angle of the pressure strip 8 is set as a circular chamfer, the fixed clamping force is changed from surface force to linear force, which is convenient for clamping and fixing the workpiece, ensuring that the workpiece is pressed down, and preventing the workpiece from jumping up during the processing to affect the processing accuracy.

[0022] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A self-locking fixing fixture for a CNC planer, comprising a device base (1), characterized in that: A fixed plate (2) is arranged above the base (1) of the device, a rotating base (5) is arranged in the middle of the upper end surface of the fixed plate (2), a limiting clamp group (6) is fixedly installed on the upper end of the rotating base (5), a groove is opened at the upper end of the limiting clamp group (6) to place a height-increasing member (7), a pressure strip (8) is placed on the upper end of the height-increasing member (7), and the side end angle of the pressure strip (8) is set as a circular chamfer; The limit clamp group (6) comprises a sleeve seat (61), a top seat (62), an inner groove (63), a screw rod (64), a rotating rod (65), a sliding mother seat (66), a pressure plate (67), a positioning bolt (68), a movable plate (69), a movable screw rod (610) and a positioning block (611). The movable plate (69) is symmetrically arranged at the center of the upper side ends of the top seat (62) and the sliding mother seat (66). The movable plate (69) is provided with a positioning bolt (68). The movable plate (69) can rotate in a circle around the positioning bolt (68). A plurality of screw holes are opened on the movable plate (69), and corresponding movable screw rods (610) are arranged in the screw holes. The movable screw rod (610) is screwed with a positioning block (611) on the inner end thereof.

2. A self-locking fixing fixture for a CNC planer according to claim 1, characterized in that: A plurality of limiting long grooves (3) are provided at the upper end of the device base (1), and fixing bolts (4) are provided in grooves at the four corners of the fixing plate (2).

3. A self-locking fixing fixture for a CNC planer according to claim 1, characterized in that: A top seat (62) is fixedly mounted on the left side of the upper end surface of the sleeve seat (61), and an inner groove (63) is provided in the middle of the upper end surface of the right side of the sleeve seat (61), wherein a screw rod (64) is arranged in the inner groove (63).

4. A self-locking fixing fixture for a CNC planer according to claim 3, characterized in that: The right end of the screw rod (64) passes through the wall of the inner groove (63) and is fixedly installed with a rotating rod (65).

5. A self-locking fixing fixture for a CNC planer according to claim 4, characterized in that: The inner groove (63) is provided with a sliding seat (66) capable of directionally sliding, and the sliding seat (66) is sleeved on the screw rod (64).

6. A self-locking fixing fixture for a CNC planer according to claim 5, characterized in that: A pressing plate (67) is symmetrically bolted on the inner side of the upper end of the top seat (62) and the sliding mother seat (66). The pressing plate (67) is arranged corresponding to the pressure strip (8), and a groove is opened on the inner side of the pressing plate (67) according to the width of the pressure strip (8).

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