Abutting segmented clamping structure for high-precision clamp

Abstract

The utility model relates to the technical field of high-precision clamps, in particular to a stopping segmented clamping structure for a high-precision clamp, and aims to solve the technical problems that only one end of a long workpiece can be fixed when the long workpiece is fixed by a single clamp, so that the workpiece is easily damaged due to non-uniform stress during processing; according to the technical scheme, the abutting segmented clamping structure for the high-precision clamp comprises a supporting platform, a lower clamp, an upper clamp, a lifting assembly, a sliding assembly and an abutting assembly; according to the utility model, the plurality of clamps are additionally arranged on the supporting platform of the machine tool, so that the original clamping structure of a single clamp is improved into a clamping structure capable of fixing a workpiece to be machined in sections from different positions; after the workpiece is fixed in a segmented mode, the problem that the workpiece is damaged due to uneven stress caused by single-end clamping of the workpiece with a certain length can be avoided, and the problem that the workpiece is easily damaged due to uneven stress during machining due to the fact that only one end can be fixed when a long workpiece is fixed in a fixing mode of a single clamp is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-precision clamps, and in particular relates to a stop-section clamping structure for high-precision clamps. Background Art

[0002] High-precision fixtures are often used in machine tools for processing various workpieces because of their ability to fix workpieces of different shapes and sizes. They keep the machine tool, cutting tool, and workpiece in the correct relative position, making it easier for the machine tool to process the workpiece.

[0003] At present, when processing a larger workpiece, a single fixture can only fix one end of the longer workpiece. This fixing method easily causes uneven force on the workpiece during processing, causing damage to the workpiece during processing.

[0004] Therefore, in order to address the problem that the workpiece may be damaged due to uneven force during processing when the above-mentioned single high-precision fixture is used to fix the workpiece, a segmented clamping structure for a high-precision fixture is designed, which can clamp and fix the workpiece in segments to prevent uneven force on the workpiece. Utility Model Content

[0005] In order to overcome the problem that a single clamp can only fix one end of a long workpiece, which may easily lead to damage of the workpiece due to uneven force during processing.

[0006] The technical solution of the utility model is: a stop-segmented clamping structure for high-precision clamps, including a supporting platform, a lower clamp, an upper clamp, a lifting assembly, a sliding assembly, and a stop assembly; four lower clamps are arranged on the supporting platform, an upper clamp matching the lower clamp is arranged above the lower clamp, a lifting assembly for adjusting the distance between the upper clamp and the lower clamp is arranged on the supporting platform, a sliding assembly for adjusting the distance between the lower clamps is installed on the supporting platform, and a stop assembly is installed on the supporting platform.

[0007] Preferably, multiple clamps are installed on the support platform of the machine tool and the workpiece is clamped in sections to provide a reasonably distributed supporting force for the workpiece, thereby avoiding uneven force on the workpiece during processing. The lifting assembly can drive the upper clamp to move up and down, and the sliding assembly can change the position of the clamp according to the length of the workpiece, thereby improving the versatility of the clamping structure.

[0008] Preferably, the lifting assembly includes a U-shaped plate and a lifting slot; a U-shaped plate is provided on the lower clamp, and the U-shaped plate is provided with lifting slots opposite to each other on the left and right. The U-shaped plate can limit the rising position of the upper clamp, and the lifting slot can play a guiding role to limit the moving direction of the upper clamp so that it can only move up and down.

[0009] Preferably, the lifting assembly further includes a lifting block; the lifting block is slidably connected in the lifting slot, and the lifting block is fixedly connected to the upper clamp. The lifting block moves up and down in the lifting slot to drive the upper clamp to move up and down above the lower clamp, so as to fix the workpiece.

[0010] Preferably, the lifting assembly also includes a threaded rod and a knob; a screw hole is opened on the U-shaped plate, a threaded rod matching the screw hole is inserted on the upper clamp, and a knob connected to the threaded rod is provided on the U-shaped plate, and the threaded rod is driven to rotate by the knob. Since the lifting slot restricts the lifting block, the upper clamp fixed on the lifting block cannot rotate with the threaded rod, and the threaded rod moves downward to squeeze the upper clamp downward.

[0011] Preferably, the sliding assembly includes a slide groove and a slider; a slide groove is opened on the supporting platform, and the slider is slidably connected in the slide groove. The lower clamp is installed on the slider, and the slider moves in the slide groove to drive the clamp to move back and forth on the supporting platform, and can be adjusted according to workpieces of different lengths.

[0012] Preferably, the stop assembly includes a fixed plate and a No. 1 anchor hole; a fixed plate is installed on the support platform and is located on the left and right sides of the outer side of the slide groove. The fixed plate is provided with No. 1 anchor holes arranged equidistantly. The fixed plate can fix the position of the fixture to prevent the slider from moving during the processing and avoid the workpiece from offset.

[0013] Preferably, the stop assembly also includes a No. 2 anchor hole; a No. 2 anchor hole matching the No. 1 anchor hole is opened on the slider, and fixing bolts are inserted into the No. 1 anchor hole and the No. 2 anchor hole. The slider is fixed to the fixing plate by passing the fixing bolts through the No. 1 anchor hole and the No. 2 anchor hole, thereby achieving the effect of fixing the clamp installed on the slider.

[0014] Beneficial effects of the utility model:

[0015] 1. By adding multiple fixtures to the support platform of the machine tool, the clamping structure of the original single fixture is improved to a clamping structure that can fix the workpiece to be processed in sections from different positions. After the workpiece is fixed in sections, the problem of uneven force and damage to the workpiece caused by single-end clamping of a workpiece of a certain length can be avoided;

[0016] 2. The slider can drive the fixture to move, which is convenient for fixing workpieces of different lengths and improving the versatility of high-precision fixtures. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structural schematic diagram of the stop segmented clamping structure for high-precision clamps of the utility model is shown;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the stop segmented clamping structure for high-precision clamps of the utility model is shown;

[0019] Figure 3 The utility model shows a schematic diagram of the three-dimensional structure of the stop segmented clamping structure fixture and the lifting component and the slider for high-precision fixtures;

[0020] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of the clamp on the stop segmented clamping structure of the high-precision clamp;

[0021] Figure 5 The figure shows a three-dimensional structure diagram of the lower clamp of the stop segmented clamping structure used for the high-precision clamp of the utility model;

[0022] Figure 6 What is shown is a schematic diagram of the three-dimensional structure of the support platform and the stop component of the stop segmented clamping structure used for the high-precision fixture of the utility model.

[0023] Explanation of the reference numerals in the accompanying drawings: 1. Support platform; 2. Lower clamp; 3. Upper clamp; 401. U-shaped plate; 402. Lifting slot; 403. Lifting block; 404. Threaded rod; 405. Knob; 501. Slide slot; 502. Slider; 601. Fixing plate; 602. Anchor hole No. 1; 603. Anchor hole No. 2. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2 The utility model provides an embodiment: a segmented clamping structure for a high-precision fixture includes a supporting platform 1, a lower fixture 2, an upper fixture 3, a lifting component, a sliding component, and a stopping component; four lower fixtures 2 are arranged on the supporting platform 1, and an upper fixture 3 matching the lower fixture 2 is arranged above the lower fixture 2. A lifting component for adjusting the distance between the upper fixture 3 and the lower fixture 2 is arranged on the supporting platform 1, and a sliding component for adjusting the distance between the lower fixture 2 is installed on the supporting platform 1. A stopping component is installed on the supporting platform 1. By installing multiple fixtures on the supporting platform 1 of the machine tool, the workpiece is clamped in sections to provide a reasonably distributed supporting force for the workpiece, thereby avoiding uneven force on the workpiece during processing. The lifting component can drive the upper fixture 3 to move up and down, and the sliding component can change the position of the fixture according to the length of the workpiece, thereby improving the versatility of the clamping structure.

[0026] See also Figure 3-5In this embodiment, the lifting assembly includes a U-shaped plate 401 and a lifting slot 402; the lower fixture 2 is provided with a U-shaped plate 401, and the U-shaped plate 401 is provided with lifting slots 402 opposite to each other on the left and right, and the lifting assembly also includes a lifting block 403; the lifting slot 402 is slidably connected with the lifting block 403, and the lifting block 403 is fixedly connected to the upper fixture 3, and the lifting assembly also includes a threaded rod 404 and a knob 405; the U-shaped plate 401 is provided with a screw hole, and the upper fixture 3 is plugged with a threaded rod 404 matching the screw hole, and the U-shaped plate 401 is provided with a knob 405 connected to the threaded rod 404, and the U-shaped plate 4 01 can limit the rising position of the upper clamp 3, and the lifting groove 402 can play a guiding role to limit the moving direction of the upper clamp 3 so that it can only move up and down. The lifting block 403 moves up and down in the lifting groove 402 to drive the upper clamp 3 to move up and down above the lower clamp 2, so as to fix the workpiece, and the threaded rod 404 is driven to rotate by the knob 405. Since the lifting groove 402 limits the lifting block 403, the upper clamp 3 fixed on the lifting block 403 cannot rotate with the threaded rod 404, and the threaded rod 404 moves downward to squeeze the upper clamp 3 to move downward.

[0027] See also Figure 2 , 3 6. In this embodiment, the sliding assembly includes a slide groove 501 and a slider 502; the support platform 1 is provided with a slide groove 501, the slide groove 501 is slidably connected with the slider 502, the lower clamp 2 is installed on the slider 502, and the stop assembly includes a fixed plate 601 and a No. 1 anchor hole 602; the support platform 1 is provided with a fixed plate 601 located on the outer side of the slide groove 501 and opposite to each other on the left and right sides, the fixed plate 601 is provided with No. 1 anchor holes 602 arranged equidistantly, and the stop assembly also includes No. 2 anchor holes 603; the slider 502 is provided with a No. 2 anchor hole 602 matching the No. 1 anchor hole The fixing hole 603, the No. 1 anchor hole 602 and the No. 2 anchor hole 603 are inserted with fixing bolts, and the slider 502 moves in the slide groove 501 to drive the clamp to move back and forth on the support platform 1, and can be adjusted according to workpieces of different lengths. The fixing plate 601 can play a role in fixing the position of the clamp to prevent the slider 502 from moving during the processing and avoid the workpiece from being offset. The slider 502 is fixed to the fixing plate 601 by passing the fixing bolts through the No. 1 anchor hole 602 and the No. 2 anchor hole 603, thereby achieving the effect of fixing the clamp installed on the slider 502.

[0028] When working, the worker first places the workpiece in the lower clamp 2 at the front side. Then, the knob 405 is turned, and the knob 405 drives the threaded rod 404 to rotate. Under the restriction of the lifting slot 402, the upper clamp 3 and the lifting block 403 move downward together, and the upper clamp 3 and the lower clamp 2 apply force to the workpiece to fix one end of the workpiece.

[0029] Then move the slider 502, and drive the remaining clamps to move on the support platform 1 by moving the slider 502 in the slide groove 501. Move the clamp to a reasonable position according to the length of the workpiece to be processed, and then pass the bolt through the No. 1 anchor hole 602 and the No. 2 anchor hole 603 to fix the position of the slider 502, and then turn the knob 405 to drive the threaded rod 404 to rotate, so as to clamp the workpiece in sections.

[0030] Through the above steps, multiple clamps are installed on the supporting platform 1 of the machine tool, and the clamping structure of the original single clamp is improved into a clamping structure that can fix the workpiece to be processed in sections from different positions. After the workpiece is fixed in sections, the problem of damage to the workpiece due to uneven force caused by single-end clamping of a workpiece of a certain length can be avoided, and the problem of a single clamp fixing only one end when fixing a longer workpiece can be solved, which easily leads to damage of the workpiece due to uneven force during processing.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A segmented clamping structure for a high-precision fixture, comprising a support platform (1), a lower fixture (2), and an upper fixture (3); characterized in that: It also includes a lifting component, a sliding component, and a stop component; four lower clamps (2) are arranged on the support platform (1), and upper clamps (3) matching the lower clamps (2) are arranged above the lower clamps (2); a lifting component for adjusting the distance between the upper clamps (3) and the lower clamps (2) is arranged on the support platform (1); a sliding component for adjusting the distance between the lower clamps (2) is installed on the support platform (1); and a stop component is installed on the support platform (1).

2. The stop-segment clamping structure for a high-precision fixture according to claim 1, characterized in that: The lifting assembly comprises a U-shaped plate (401) and a lifting slot (402); the lower clamp (2) is provided with the U-shaped plate (401), and the U-shaped plate (401) is provided with lifting slots (402) opposite to each other on the left and right.

3. The stop-segment clamping structure for a high-precision fixture according to claim 2, characterized in that: The lifting assembly further comprises a lifting block (403); the lifting block (403) is slidably connected in the lifting slot (402), and the lifting block (403) is fixedly connected to the upper clamp (3).

4. The stop-segment clamping structure for a high-precision fixture according to claim 3, characterized in that: The lifting assembly also includes a threaded rod (404) and a knob (405); a screw hole is provided on the U-shaped plate (401), a threaded rod (404) matching the screw hole is inserted on the upper clamp (3), and a knob (405) connected to the threaded rod (404) is provided on the U-shaped plate (401).

5. The stop-segment clamping structure for a high-precision fixture according to claim 1, characterized in that: The sliding assembly comprises a sliding groove (501) and a sliding block (502); the supporting platform (1) is provided with the sliding groove (501), the sliding block (502) is slidably connected in the sliding groove (501), and the lower clamp (2) is installed on the sliding block (502).

6. The stop-segment clamping structure for a high-precision fixture according to claim 5, characterized in that: The stop assembly comprises a fixing plate (601) and a No. 1 anchor hole (602); the supporting platform (1) is provided with a fixing plate (601) located on the outside of the slide groove (501) and opposite to each other on the left and right sides, and the fixing plate (601) is provided with No. 1 anchor holes (602) arranged at equal distances.

7. The stop-segment clamping structure for a high-precision fixture according to claim 6, characterized in that: The stop assembly also includes a No. 2 anchor hole (603); the slider (502) is provided with a No. 2 anchor hole (603) matching the No. 1 anchor hole (602), and fixing bolts are inserted into the No. 1 anchor hole (602) and the No. 2 anchor hole (603).

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