Flexible machining clamp of machine tool

Abstract

The utility model discloses a flexible machining fixture of a machine tool, and relates to the technical field of fixtures, the flexible machining fixture comprises a bottom plate, the top of the bottom plate is fixedly connected with a supporting table, two symmetrically distributed supports are slidably sleeved in the bottom plate, the outer sides of the supports are fixedly connected with a fixed seat, the outer side of the fixed seat is in contact with a connecting seat, and the connecting seat is in contact with the supporting table. A motor is fixedly mounted at the bottom of the bottom plate, and a positive and negative screw rod is fixedly connected to the outer side of the output end of the motor and is in threaded connection with the support. Through the effect of designing a plurality of supporting rods, when irregular parts at the bottom are placed in the supporting table to be supported, the irregular parts can be stably supported, the irregular parts can be clamped after being supported, and the problem that due to the fact that the gravity of the parts is large, the parts are only horizontally clamped and are not stable enough is solved; and when a part is clamped, the part can be clamped and fixed by means of the elastic force of the second spring, so that the workpiece is prevented from being damaged by too large clamping force.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a flexible processing clamp for a machine tool. Background Art

[0002] The utility model patent with the patent authorization announcement number CN216371084U discloses a bidirectional flexible clamp for machine tool processing, including a mobile frame, the bottom of the mobile frame is vertically connected to two fixed clamps, and the fixed clamps are respectively arranged on both sides of the bottom of the mobile frame, a mobile clamp is arranged in parallel between the two fixed clamps, and a detection pressure plate is movably arranged on the side of the fixed clamps close to each other, the detection pressure plate is connected to the fixed clamp through a plurality of limit blocks, the surface of the mobile frame is rotatably connected to two bearing seats, and the surface of the bearing seat is fixedly connected to a transmission ring. This bidirectional flexible clamp for machine tool processing can be used to fix the flexible clamp as a whole on the machine tool by setting a mounting top plate, and can be fixed according to the position requirements of use, and can be adjusted by setting an adjustment shaft to connect the rotating sleeve rod, so that the distance between the adjustment shaft and the rotating sleeve rod can be adjusted, and the horizontal height of the mounting top plate can be adjusted according to the clamping position during machine tool processing, and adjusted to a suitable height.

[0003] In the above-mentioned prior art, the flexible machining fixture of the machine tool realizes the positioning of the workpiece by horizontal clamping when in use. However, due to the different shapes of the workpieces, when the bottom of the workpiece is irregular in shape and heavy, the bottom of the workpiece cannot be well supported. The positioning is not stable enough by relying solely on horizontal clamping, which will affect the positioning effect. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model provides a flexible processing fixture for a machine tool, which solves the technical problem of inconvenient auxiliary support and positioning of a workpiece.

[0005] In order to solve the above technical problems, the utility model provides a flexible processing fixture for a machine tool, including a base plate, the top of the base plate is fixedly connected to a support platform, the inside of the base plate is slidably sleeved with two symmetrically distributed brackets, the outer side of the bracket is fixedly connected to a fixed seat, the outer side of the fixed seat is in contact with a connecting seat, a motor is fixedly installed on the bottom of the base plate, the outer side of the motor output end is fixedly connected to forward and reverse screws, the forward and reverse screws are threadedly connected to the bracket, a clamping mechanism is arranged on the support platform, and a connecting mechanism is arranged on the connecting seat.

[0006] Preferably, the clamping mechanism comprises a support rod, a plurality of support rods evenly distributed are slidably connected inside the support platform, a guide rod is slidably sleeved inside the support rod, the guide rod is fixedly connected to the support platform, a first spring is arranged outside the guide rod, a connecting rod is slidably sleeved inside the connecting seat, a second spring is arranged outside the connecting rod, and a clamping block is fixedly connected to one end of the connecting rod away from the connecting seat. By designing the clamping mechanism, the workpiece can be positioned.

[0007] Preferably, one end of the first spring is fixedly connected to the support rod, and the other end of the first spring is fixedly connected to the support platform. By designing the first spring, the force of the first spring can act on the support platform.

[0008] Preferably, one end of the second spring is fixedly connected to the clamping block, and the other end of the second spring is fixedly connected to the connecting seat. By designing the second spring, the force of the second spring can act on the clamping block.

[0009] Preferably, the connection mechanism includes a dovetail block, a dovetail block is fixedly connected to the outer side of one end of the connection seat close to the fixed seat, the dovetail block is slidably connected to the fixed seat, a ball is movably sleeved inside the dovetail block, the ball is movably connected to the fixed seat, a slider is movably sleeved outside the ball, the slider is slidably connected to the fixed seat, a connecting rod is fixedly connected to the bottom of the slider, the connecting rod is slidably connected to the fixed seat, a fixed rod is slidably sleeved inside the connecting rod, the fixed rod is fixedly connected to the fixed seat, and a third spring is arranged outside the fixed rod. By designing the connection mechanism, it is convenient to disassemble the connection seat.

[0010] Preferably, one end of the third spring is fixedly connected to the connecting rod, and the other end of the third spring is fixedly connected to the fixing seat. By designing the third spring, the force of the third spring can act on the connecting rod.

[0011] Compared with the related art, the flexible machining fixture of a machine tool provided by the utility model has the following beneficial effects:

[0012] The utility model provides a flexible processing fixture for a machine tool. By designing a plurality of support rods, when an irregular component at the bottom is placed inside a support table for support, it can also be stably supported. After support, it can be clamped, avoiding the problem that the component has a large gravity and only horizontal clamping is not stable enough. At the same time, through the coordinated use of the clamping block and the connecting seat, when clamping the component, the elastic force of the second spring can be relied on to clamp and fix it, avoiding excessive clamping force to clamp the workpiece.

[0013] The utility model provides a flexible machining fixture for a machine tool. By designing the connection between a dovetail block and a fixed seat, the horizontal direction of the connecting seat can be limited. At the same time, by coordinating the connection between a ball bearing and the dovetail block, the vertical direction of the dovetail block can be limited, thereby realizing the installation and fixation of the connecting seat and the clamping block. The connecting seat can be easily disassembled, which is convenient for replacing clamping blocks of different shapes and convenient for clamping and positioning workpieces of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A front cross-sectional view of

[0016] Figure 3 For this utility model Figure 2 A in the enlarged view;

[0017] Figure 4 For this utility model Figure 2 Enlarged view of point B in .

[0018] Numbers in the figure:

[0019] 1. Base plate; 2. Support platform; 3. Bracket; 4. Fixed seat; 5. Connecting seat; 6. Motor; 7. Forward and reverse screws; 8. Clamping mechanism; 9. Connecting mechanism; 81. Support rod; 82. Guide rod; 83. First spring; 84. Connecting rod; 85. Second spring; 86. Clamping block; 91. Dovetail block; 92. Ball bearing; 93. Slider; 94. Connecting rod; 95. Fixed rod; 96. Third spring. DETAILED DESCRIPTION

[0020] See also Figure 1 , Figure 2 A flexible machining fixture for a machine tool comprises a base plate 1, a support platform 2 is fixedly connected to the top of the base plate 1, two symmetrically distributed brackets 3 are slidably sleeved inside the base plate 1, a fixing seat 4 is fixedly connected to the outer side of the bracket 3, a connecting seat 5 is contacted to the outer side of the fixing seat 4, a motor 6 is fixedly installed at the bottom of the base plate 1, a forward and reverse screw rod 7 is fixedly connected to the outer side of the output end of the motor 6, the forward and reverse screw rod 7 is connected to the bracket 3 by threads, a clamping mechanism 8 is arranged on the support platform 2, and a connecting mechanism 9 is arranged on the connecting seat 5.

[0021] See also Figure 1 , Figure 3The clamping mechanism 8 includes a support rod 81, and a plurality of support rods 81 are evenly distributed and slidably connected inside the support table 2. A guide rod 82 is slidably sleeved inside the support rod 81, and the guide rod 82 is fixedly connected to the support table 2. A first spring 83 is arranged on the outer side of the guide rod 82, and one end of the first spring 83 is fixedly connected to the support rod 81, and the other end of the first spring 83 is fixedly connected to the support table 2. By designing the first spring 83, the force of the first spring 83 can act on the support table 2. A connecting rod 84 is slidably sleeved inside the connecting seat 5, and a second spring 85 is arranged on the outer side of the connecting rod 84, and one end of the second spring 85 is fixedly connected to a clamping block 86, and the other end of the second spring 85 is fixedly connected to the connecting seat 5. By designing the second spring 85, the force of the second spring 85 can act on the clamping block 86, and the end of the connecting rod 84 away from the connecting seat 5 is fixedly connected to the clamping block 86. By designing the clamping mechanism 8, the workpiece can be positioned.

[0022] See also Figure 1 , Figure 4 The connecting mechanism 9 includes a dovetail block 91, and a dovetail block 91 is fixedly connected to the outer side of one end of the connecting seat 5 close to the fixed seat 4. The dovetail block 91 is slidably connected to the fixed seat 4. The dovetail block 91 is movably sleeved with a ball 92 inside the dovetail block 91, and the ball 92 is movably connected to the fixed seat 4. A slider 93 is movably sleeved on the outer side of the ball 92, and the slider 93 is slidably connected to the fixed seat 4. A connecting rod 94 is fixedly connected to the bottom of the slider 93, and the connecting rod 94 is slidably connected to the fixed seat 4. A fixing rod 95 is slidably sleeved inside the connecting rod 94, and the fixing rod 95 is fixedly connected to the fixed seat 4. A third spring 96 is arranged on the outer side of the fixing rod 95, and one end of the third spring 96 is fixedly connected to the connecting rod 94, and the other end of the third spring 96 is fixedly connected to the fixed seat 4. By designing the third spring 96, the force of the third spring 96 can act on the connecting rod 94. By designing the connecting mechanism 9, it is convenient to disassemble the connecting seat 5.

[0023] Working principle: When in use, first place the workpiece on the support table 2, the protruding part of the workpiece will press down the support rod 81, and the support rod 81 will slide along the guide rod 82 to squeeze the first spring 83. The support rod 81 can support the workpiece, and when the bottom irregular parts are placed inside the support table 2 for support, they can also be stably supported. After support, they can be clamped to avoid the problem that the parts have a large gravity and only horizontal clamping is not stable enough. When the support is completed, start the motor 6, and the motor 6 drives the forward and reverse screws 7 to rotate, so that the bracket 3 makes a threaded movement, and the bracket 3 drives the clamping block 86 to move horizontally. The clamping block 86 contacts the workpiece and stops moving, while the connecting seat 5 continues to move. The connecting seat 5 squeezes the second spring 85, and the elastic action of the second spring 85 will give the clamping block 86 a reaction force, so that the clamping block 86 can clamp the workpiece, and when clamping the parts, the elastic force of the second spring 85 can be relied on to clamp and fix them to avoid excessive clamping force and damaging the workpiece.

[0024] When it is necessary to disassemble the clamping block 86, the connecting seat 5 is directly moved upward, and the connecting seat 5 drives the dovetail block 91 to move upward. The dovetail block 91 and the ball 92 slide relative to each other, and the ball 92 drives the slider 93 and the connecting rod 94 to move horizontally. The connecting rod 94 squeezes the third spring 96, so that the ball 92 is completely separated from the dovetail block 91. At this time, the connecting seat 5 can be disassembled by continuously moving the connecting seat 5 upward, which is convenient for replacing clamping blocks 86 of different shapes and convenient for clamping and positioning workpieces of different shapes.

Claims

1. A flexible machining fixture for a machine tool, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a support platform (2), the interior of the base plate (1) is slidably sleeved with two symmetrically distributed brackets (3), the outer side of the bracket (3) is fixedly connected to a fixing seat (4), the outer side of the fixing seat (4) is in contact with a connecting seat (5), a motor (6) is fixedly installed at the bottom of the base plate (1), the outer side of the output end of the motor (6) is fixedly connected to a forward and reverse screw rod (7), the forward and reverse screw rod (7) is connected to the bracket (3) by a thread, a clamping mechanism (8) is provided on the support platform (2), and a connecting mechanism (9) is provided on the connecting seat (5).

2. The flexible machining fixture for a machine tool according to claim 1, characterized in that: The clamping mechanism (8) comprises a support rod (81), the support platform (2) is internally slidably connected to a plurality of support rods (81) evenly distributed, the support rod (81) is internally slidably sleeved with a guide rod (82), the guide rod (82) is fixedly connected to the support platform (2), a first spring (83) is arranged on the outer side of the guide rod (82), the connection seat (5) is internally slidably sleeved with a connecting rod (84), a second spring (85) is arranged on the outer side of the connecting rod (84), and a clamping block (86) is fixedly connected to one end of the connecting rod (84) away from the connection seat (5).

3. The flexible machining fixture for a machine tool according to claim 2, characterized in that: One end of the first spring (83) is fixedly connected to the support rod (81), and the other end of the first spring (83) is fixedly connected to the support platform (2).

4. The flexible machining fixture for a machine tool according to claim 2, characterized in that: One end of the second spring (85) is fixedly connected to the clamping block (86), and the other end of the second spring (85) is fixedly connected to the connecting seat (5).

5. The flexible machining fixture for a machine tool according to claim 1, characterized in that: The connecting mechanism (9) comprises a dovetail block (91), the dovetail block (91) is fixedly connected to the outer side of one end of the connecting seat (5) close to the fixed seat (4), the dovetail block (91) is slidably connected to the fixed seat (4), the dovetail block (91) is movably sleeved with a ball (92) inside the dovetail block (91), the ball (92) is movably connected to the fixed seat (4), the outer side of the ball (92) is movably sleeved with a slider (93), the slider (93) is slidably connected to the fixed seat (4), the bottom of the slider (93) is fixedly connected with a connecting rod (94), the connecting rod (94) is slidably connected to the fixed seat (4), the inner side of the connecting rod (94) is slidably sleeved with a fixing rod (95), the fixing rod (95) is fixedly connected to the fixed seat (4), and a third spring (96) is arranged on the outer side of the fixing rod (95).

6. The flexible machining fixture for a machine tool according to claim 5, characterized in that: One end of the third spring (96) is fixedly connected to the connecting rod (94), and the other end of the third spring (96) is fixedly connected to the fixing seat (4).

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