A multi-station profile machining clamp mechanism

Abstract

The utility model belongs to tooling technical field, especially point to a kind of multi-station section bar machining clamp mechanism;Including the mounting seat on the machine body, still include: multiple positioning components, interval setting along the length direction of mounting seat, every positioning component includes two first positioning members and the second positioning member between two first positioning members, and the accommodation gap for placing single section bar workpiece is formed between first positioning member and second positioning member;Compression assembly, including batten and multiple flexible blocks fixed along the length direction of batten interval, and flexible block and accommodation gap one-to-one correspond;Driving assembly is used to drive compression assembly to move towards mounting seat, so that flexible block is simultaneously pressed in the section bar workpiece in all accommodation gap.The utility model can obtain a kind of multi-station section bar machining clamp mechanism by the above technical scheme, which can realize the clamping of multiple section bars at a time and synchronous clamping.

Description

Technical Field

[0001] This utility model belongs to the field of tooling technology, and specifically refers to a multi-station profile processing fixture mechanism. Background Technology

[0002] Machining fixtures are core components in the field of CNC profile machining. They are widely used in profile clamping and positioning in machining centers, milling machines and other equipment. By precisely limiting and firmly clamping the profile workpiece, they provide a stable positioning basis for milling, drilling, tapping and other processing operations of the profile, directly affecting the accuracy, efficiency and quality of profile machining and finished workpieces.

[0003] Existing profile processing fixtures mostly adopt a single-station independent clamping structure design. When processing multiple profiles, each profile must be placed and clamped individually, which is cumbersome, inefficient, and prone to positioning deviations when clamping each profile individually. At the same time, the positioning structure of existing fixtures is mostly a rigid fixed design, which cannot adapt to the small dimensional tolerances of profile workpieces, and is prone to problems such as positioning loosening or difficulty in insertion and removal. The clamping parts of the fixtures are also mostly made of rigid materials, which can easily scratch the surface of the profile workpiece during clamping, affecting the quality of the finished product, and making it difficult to meet the needs of modern profile batch processing. Utility Model Content

[0004] This invention solves the problems mentioned in the background art by forming multiple accommodating gaps with a multi-station positioning component and cooperating with a clamping component and a driving component to achieve simultaneous clamping of multiple profiles at one time.

[0005] The purpose of this utility model is achieved as follows: a multi-station profile processing fixture mechanism, including a mounting base disposed on the machine body, and further comprising: Multiple positioning components are spaced apart along the length of the mounting base. Each positioning component includes two first positioning elements and a second positioning element disposed between the two first positioning elements. An accommodating gap for placing a single profile workpiece is formed between the first positioning elements and the second positioning elements. The clamping assembly includes a pressure strip and a plurality of flexible pressure blocks fixed at intervals along the length of the pressure strip, wherein each flexible pressure block corresponds to one of the receiving gaps; A drive assembly is used to drive the clamping assembly to move toward the mounting base, so that the flexible pressure block simultaneously presses against the profile workpiece within all the accommodating gaps.

[0006] The present invention is further configured such that the driving component includes a cylinder, the output end of the cylinder is fixedly connected to the pressing component, and is used to drive the pressing bar to perform linear reciprocating motion.

[0007] The present invention is further configured such that the second positioning member includes a fixed base and positioning blocks respectively disposed on both sides of the fixed base, the positioning blocks being opposite to the first positioning member on the same side, and a accommodating gap being formed between the first positioning member and the corresponding positioning block.

[0008] The present invention is further configured such that an elastic reset member is provided between the two positioning blocks on both sides of the second positioning member, the elastic reset member being a spring, and the two ends of the spring being fixedly connected to the two positioning blocks on both sides respectively.

[0009] The present invention is further provided that the mounting base has a chip removal groove extending along its length direction.

[0010] The present invention is further configured such that both the first positioning member and the second positioning member are detachably fixed to the mounting base by bolts.

[0011] The present invention is further configured such that the positioning block of the second positioning member is adapted to the height of the first positioning member, the width of the accommodating gap matches the cross-sectional width of the profile workpiece, and the profile workpiece can be plugged into and installed in the accommodating gap.

[0012] The present invention is further configured such that the flexible pressure block is a non-metallic wear-resistant material of polyurethane or bakelite, and its end face in contact with the profile workpiece is set as an arc surface.

[0013] By adopting the above technical solution, the beneficial effects that this utility model can achieve are: 1. By using multiple sets of positioning components in conjunction with the accommodating gap, multiple profiles can be inserted and positioned at one time, which improves the profile clamping efficiency and positioning consistency.

[0014] 2. By driving the clamping components to move synchronously, the flexible clamping blocks can clamp multiple workpieces at the same time, improving the overall efficiency of batch processing.

[0015] 3. By combining the elastic reset component with the non-metallic flexible pressure block, the profile achieves self-adaptive positioning and surface protection, thereby improving clamping stability and the quality of the finished workpiece. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 yes Figure 1 A magnified structural diagram of part A; Figure 3 yes Figure 2 A magnified structural diagram of part B.

[0017] The reference numerals in the figure are as follows: 1. Machine body; 2. Mounting base; 3. Positioning component; 30. First positioning element; 31. Second positioning element; 310. Fixed base; 311. Positioning block; 4. Accommodation gap; 5. Pressing component; 50. Pressure bar; 51. Flexible pressure block; 6. Drive component; 60. Cylinder; 7. Elastic reset element; 8. Chip removal groove. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. See also: Figure 1-3 : Example 1:

[0019] This embodiment provides a multi-station profile processing fixture mechanism, including a mounting base 2 disposed on the machine body 1, and further including: Multiple positioning components 3 are spaced apart along the length of the mounting base 2. Each positioning component 3 includes two first positioning elements 30 and a second positioning element 31 disposed between the two first positioning elements 30. An accommodating gap 4 for placing a single profile workpiece is formed between the first positioning elements 30 and the second positioning element 31. The pressing assembly 5 includes a pressing strip 50 and a plurality of flexible pressing blocks 51 fixed at intervals along the length direction of the pressing strip 50, wherein the flexible pressing blocks 51 correspond one-to-one with the accommodating gap 4; The driving component 6 is used to drive the pressing component 5 to move toward the mounting base 2, so that the flexible pressing block 51 simultaneously presses against the profile workpiece in all the accommodating gaps 4.

[0020] This multi-station profile processing fixture mechanism uses mounting base 2 as the overall support base. The bottom of mounting base 2 can be fitted and assembled with the body 1 of the processing equipment by means of bolts, etc. One side surface of mounting base 2 provides a mounting plane for each moving and positioning component. A continuous chip removal groove 8 is opened on mounting base 2 along its own length direction. Chips can be discharged outward through chip removal groove 8 to avoid accumulation in the positioning area.

[0021] Multiple positioning components 3 are evenly spaced along the length of the mounting base 2. Each positioning component 3 includes two first positioning elements 30 and one second positioning element 31, with the second positioning element 31 located at the center between the two first positioning elements 30. The first positioning element 30 is a rigid block structure, with its side completely fitting against the side surface of the mounting base 2. The first positioning element 30 is screwed into the threaded hole inside the mounting base 2 through its own pre-set through hole by bolts, realizing the detachable and fixed assembly between the first positioning element 30 and the mounting base 2. The disassembly and assembly process can be completed without the aid of additional structures.

[0022] The second positioning component 31 consists of a fixed base 310 and positioning blocks 311 integrally formed on both sides of the fixed base 310. The side of the fixed base 310 is tightly fitted with the side surface of the mounting base 2. The fixed base 310 is also locked by bolts passing through its own reserved mounting holes and screwing into the threaded holes on the mounting base 2, so as to realize the detachable fixation between the fixed base 310 and the mounting base 2. The positioning blocks 311 on both sides extend horizontally toward the first positioning component 30 on the corresponding side. The inner sidewall of the positioning block 311 is parallel to and opposite to the inner sidewall of the first positioning component 30 on the same side, forming an accommodating gap 4 for accommodating a single profile workpiece.

[0023] The height of the positioning blocks 311 on both sides of the second positioning member 31 is consistent with the height of the first positioning member 30. The width of the accommodating gap 4 is adapted to the cross-sectional width of the profile workpiece. The profile workpiece can be inserted into or removed from the accommodating gap 4 in a vertical insertion and removal manner. The positioning blocks 311 on both sides of the second positioning member 31 are respectively provided with recessed platforms for installing springs. One end of the spring is embedded in the recessed platform of one side of the positioning block 311 and fixedly abuts against that positioning block 311. The other end of the spring is embedded in the recessed platform of the other side of the positioning block 311 and fixedly abuts against that positioning block 311. When the spring is installed, it is in a pre-compressed state, applying a continuous elastic clamping force to the positioning blocks 311 on both sides. In its natural state, the spring maintains a relatively stable distance between the positioning blocks 311 on both sides. When the profile workpiece is inserted, it can produce a small amount of elastic deformation to adapt to the profile size.

[0024] The clamping assembly 5 consists of a long strip-shaped clamping strip 50 and multiple flexible clamping blocks 51. The clamping strip 50 extends horizontally along the length of the mounting base 2, and its extension direction is consistent with the length direction of the mounting base 2. Multiple flexible clamping blocks 51 are evenly spaced along the length of the clamping strip 50. Each flexible clamping block 51 is screwed and fixed to the clamping strip 50 by bolts. The position of each flexible clamping block 51 corresponds one-to-one with the receiving gap 4, ensuring that each flexible clamping block 51 can directly face the profile workpiece within its corresponding receiving gap 4. The flexible clamping blocks 51 are made of polyurethane or bakelite non-metallic wear-resistant material. The end face of the flexible clamping block 51 that contacts the profile workpiece is an arc surface, which can smoothly conform to the outer wall of the profile.

[0025] The drive assembly 6 uses a cylinder 60 as its power source. The cylinder body of the cylinder 60 is fixed to the machine body 1, which is stationary relative to the mounting base 2. The extended end of the piston rod of the cylinder 60 is fixedly connected to the end of the pressure bar 50 via a hinged seat. The extension and retraction direction of the piston rod is perpendicular to the mounting base 2. The cylinder 60 drives the pressure bar 50 to make linear reciprocating motions towards or away from the mounting base 2 through the extension and retraction of the piston rod. When the piston rod of the cylinder 60 extends, the pressure bar 50 moves towards the mounting base 2 as a whole, and all the flexible pressure blocks 51 move synchronously towards the profile workpiece and press against the outer wall of the profile workpiece, so that multiple profile workpieces are pressed synchronously. When the piston rod of the cylinder 60 retracts, the pressure bar 50 moves away from the mounting base 2, and the flexible pressure blocks 51 completely separate from the surface of the profile workpiece, releasing the pressing state on the profile workpiece.

[0026] For this mechanism, the operator can insert multiple profile workpieces vertically into the receiving gaps 4 formed by each positioning component 3. The springs between the positioning blocks 311 on both sides of the second positioning component 31 keep the positioning blocks 311 stable, so that the profile workpieces are initially constrained and maintain a uniform posture after insertion. The cylinder 60 is activated, and the piston rod of the cylinder 60 pushes the pressure bar 50 to move towards the mounting base 2. The pressure bar 50 drives all the flexible pressure blocks 51 to move synchronously, completing the clamping of multiple profile workpieces in one go. The chips generated during the processing fall into the chip discharge groove 8 on the mounting base 2 and are discharged outward, keeping the positioning area clean. After the processing is completed, the piston rod of the cylinder 60 retracts, and the pressure bar 50 drives the flexible pressure blocks 51 to reset. The operator can then pull the processed profile workpieces horizontally out of the receiving gaps 4, and then the next batch of profile workpieces can be clamped and processed.

[0027] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A multi-station profile processing fixture mechanism, comprising a mounting base (2) disposed on a machine body (1), characterized in that, Also includes: Multiple positioning components (3) are spaced apart along the length of the mounting base (2). Each positioning component (3) includes two first positioning elements (30) and a second positioning element (31) disposed between the two first positioning elements (30). A receiving gap (4) for placing a single profile workpiece is formed between the first positioning elements (30) and the second positioning element (31). The pressing assembly (5) includes a pressing strip (50) and a plurality of flexible pressing blocks (51) fixed at intervals along the length direction of the pressing strip (50), wherein the flexible pressing blocks (51) correspond one-to-one with the accommodating gap (4); The drive assembly (6) is used to drive the clamping assembly (5) to move toward the mounting base (2), so that the flexible pressure block (51) simultaneously presses against the profile workpiece in all the accommodating gaps (4).

2. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, The drive assembly (6) includes a cylinder (60), the output end of which is fixedly connected to the pressing assembly (5) and is used to drive the pressure bar (50) to perform linear reciprocating motion.

3. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, The second positioning member (31) includes a fixed base (310) and positioning blocks (311) respectively disposed on both sides of the fixed base (310). The positioning blocks (311) are opposite to the first positioning member (30) on the same side, and a accommodating gap (4) is formed between the first positioning member (30) and the corresponding positioning block (311).

4. The multi-station profile processing fixture mechanism according to claim 3, characterized in that, An elastic reset member (7) is provided between the two side positioning blocks (311) of the second positioning member (31). The elastic reset member (7) is a spring, and the two ends of the spring are fixedly connected to the two side positioning blocks (311) respectively.

5. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, The mounting base (2) has a chip removal groove (8) extending along its length.

6. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, Both the first positioning element (30) and the second positioning element (31) are detachably fixed to the mounting base (2) by bolts.

7. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, The positioning block (311) of the second positioning member (31) is adapted to the height of the first positioning member (30), the width of the accommodating gap (4) matches the cross-sectional width of the profile workpiece, and the profile workpiece can be plugged into the accommodating gap (4).

8. The multi-station profile processing fixture mechanism according to claim 1, characterized in that, The flexible pressure block (51) is made of non-metallic wear-resistant material such as polyurethane or bakelite, and its end face that contacts the profile workpiece is set as an arc surface.

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