Machining and positioning device for mechanical design and manufacturing

Abstract

The utility model discloses a mechanical design, manufacturing and machining positioning device, and relates to the field of positioning devices, the mechanical design, manufacturing and machining positioning device comprises a base, a baffle, a sliding rail, a clamping block, a limiting set, a centering assembly and a rotating shaft, the centering assembly comprises a bidirectional lead screw, a threaded sleeve, a moving block, a threaded rod, a hinge seat and an extrusion block, and the limiting assembly comprises a connecting block, an extrusion sheet, an eccentric wheel and a fixed block. And when one side of the special-shaped workpiece is fixed through a centering assembly, the other side of the workpiece is special-shaped, adjustment can be conducted according to different shapes of the workpiece by rotating a threaded rod, and therefore the workpiece can be conveniently and rapidly moved. Workpieces in different shapes can be centered conveniently, centered positioning is facilitated, the eccentric wheel is driven to rotate by rotating the rotating shaft, the fixing block downwards extrudes the fixing piece along with rotation of the eccentric wheel, the connecting block and the clamping block are fixed through the fixing piece, and fixing is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, and particularly relates to a positioning device for mechanical design, manufacturing and processing. Background Technique

[0002] Mechanical design, manufacturing and processing apply the theories and methods of mechanical design to actual production, and transform the mechanical parts or products on the design drawings into entities through various processing technologies. This process generally includes the following key steps: design stage, material selection, process planning, programming and simulation, and machining and manufacturing.

[0003] For the positioning device, after programming and simulation, CNC numerical control machining is required to process the pre-treated raw materials. Before processing, pre-coding needs to be carried out according to the size of the raw materials. When pre-coding, a virtual coordinate system needs to be pre-constructed, and then coding is carried out so that the tool head moves in the coordinate system, thereby performing operations such as cutting on the raw materials. And to achieve precise machining, the raw materials need to be accurately fixed at the predetermined positions in the virtual coordinate system, which requires the use of a positioning device to clamp and fix the raw materials, so as to determine the coordinates.

[0004] The existing positioning devices need to clamp and fix the raw materials on the clamping table. After being placed on the clamping table, tools such as positioners are also required to perform positioning and adjustment on the workpieces. However, the existing tools are too cumbersome in the steps of positioning and adjusting special-shaped workpieces, resulting in workers being unable to perform positioning operations well. Content of the Utility Model

[0005] (I) Technical Problems to be Solved

[0006] In view of the above problems existing in the prior art, the utility model provides a positioning device for mechanical design, manufacturing and processing.

[0007] (II) Technical Solutions

[0008] To achieve the above purposes, the utility model is realized through the following technical solutions: a positioning device for mechanical design, manufacturing and processing, including a base, baffles are arranged on both sides of the base, a slide rail is fixedly connected to the upper surface of the base, two clamping blocks are slidably connected to the upper surface of the slide rail, two limiting components are arranged on the upper surfaces of the two clamping blocks, a centering component is inserted into the interior of the clamping block, and a rotating shaft is movably connected to the upper surface of the baffle through a bearing seat;

[0009] The centering component includes a bidirectional lead screw inserted inside the clamping block. Two threaded sleeves are threadedly connected to the outer surface of the bidirectional lead screw. A moving block is fixedly connected to the outer surface of the threaded sleeve. Two threaded rods are inserted inside the moving block. One end of each of the two threaded rods away from the moving block is movably connected to a hinge seat. A pressing block is hinged to one side of the hinge seat away from the threaded rod.

[0010] The limiting component includes a connecting block fixedly connected to the upper surface of the clamping block. The upper surface of the connecting block passes through the baffle and is fixedly connected to a pressing piece. An eccentric wheel is slidably connected to the outer surface of the rotating shaft. A fixed block is fixedly connected to the outer surface of the eccentric wheel.

[0011] As a preferred solution of the mechanical design, manufacturing, and processing positioning device of the present invention, wherein extension blocks are fixedly connected to both sides of the clamping block. A rectangular groove for the extension block to slide is provided inside the baffle, and the extension block slides inside the rectangular groove.

[0012] As a preferred solution of the mechanical design, manufacturing, and processing positioning device of the present invention, wherein knobs are provided at one end of the bidirectional lead screw and the threaded rod passing through the moving block. Limiting rods are inserted inside both sides of the clamping block. One end of the limiting rod passes through the extension block and is fixedly connected to the outer surface of the moving block.

[0013] As a preferred solution of the mechanical design, manufacturing, and processing positioning device of the present invention, wherein a card strip is provided on the outer surface of the rotating shaft. The eccentric wheel and the fixing piece can slide on the outer surface of the rotating shaft and rotate as the rotating shaft rotates.

[0014] As a preferred solution of the mechanical design, manufacturing, and processing positioning device of the present invention, wherein two connecting plates are inserted inside both sides of the clamping block. A connecting ring is fixedly connected to the top end of the connecting plate. The inner wall of the connecting ring is movably connected to a fixing piece. A connecting rod is fixedly connected to the outer surface of the fixing piece. One end of the connecting rod is fixedly connected to the outer surface of the eccentric wheel.

[0015] As a preferred solution of the mechanical design, manufacturing, and processing positioning device of the present invention, wherein a sliding groove for the connecting block to slide is provided on the upper surface of the baffle. The diameter of the pressing piece is greater than the width of the sliding groove. A toothed protrusion is provided on the upper surface of the sliding groove. A soft gasket is provided on the lower surface of the pressing piece.

[0016] (III) Beneficial effects

[0017] The present invention provides a mechanical design, manufacturing, and processing positioning device. It has the following beneficial effects:

[0018] 1. By rotating the bidirectional screw, the moving blocks on both sides are driven to move to the center position at the same time, so that the workpiece is extruded by the extrusion block. When one side of the special-shaped workpiece has been fixed by a centering component and the other side of the workpiece is special-shaped, the threaded rod can be rotated to adjust according to the different shapes of the workpiece, so as to facilitate the centering of workpieces of different shapes, thereby facilitating centering positioning.

[0019] 2. According to the size of the workpiece, the sliding clamp block can be used to drive the connecting block to slide in the slide groove of the baffle, so as to facilitate the clamping of workpieces of different sizes. After adjusting the slider to the appropriate position, the eccentric wheel can be driven to rotate by rotating the shaft, so that the fixed block presses the fixing plate downward as the eccentric wheel rotates, thereby fixing the connecting block and the clamp block through the fixing plate, which is convenient for fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the centering component of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the extrusion block of the utility model.

[0024] Figure 4 It is a structural schematic diagram of the limit assembly of the utility model.

[0025] In the figure, 1, baffle; 2, centering assembly; 201, moving block; 202, threaded sleeve; 203, threaded rod; 204, extension block; 205, bidirectional screw; 206, limit rod; 207, hinge seat; 208, extrusion block; 3, base; 4, slide rail; 5, rotating shaft; 6, clamping block; 7, limit assembly; 701, connecting plate; 702, extrusion plate; 703, connecting block; 704, connecting ring; 705, fixing plate; 706, fixing block; 707, eccentric wheel; 708, connecting rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] Example 1

[0028] Reference Figure 1 、 Figure 2 And Figure 3 , which is the first embodiment of the present utility model. This embodiment provides a mechanical design, manufacturing and processing positioning device, including a base 3. Baffles 1 are arranged on both sides of the base 3. A slide rail 4 is fixedly connected to the upper surface of the base 3. Two clamping blocks 6 are slidably connected to the upper surface of the slide rail 4. Two limiting components 7 are arranged on the upper surfaces of the two clamping blocks 6. A centering component 2 is inserted through the interior of the clamping block 6. The upper surface of the baffle 1 is movably connected to a rotating shaft 5 through a bearing seat. The centering component 2 includes a bidirectional lead screw 205 inserted through the interior of the clamping block 6. Two threaded sleeves 202 are threadedly connected to the outer surface of the bidirectional lead screw 205. A moving block 201 is fixedly connected to the outer surface of the threaded sleeve 202. Two threaded rods 203 are inserted through the interior of the moving block 201. One ends of the two threaded rods 203 away from the moving block 201 are movably connected to a hinge seat 207. A pressing block 208 is hinged to one side of the hinge seat 207 away from the threaded rod 203.

[0029] Specifically, extension blocks 204 are fixedly connected to both sides of the clamping block 6. A rectangular groove for the extension block 204 to slide is formed in the interior of the baffle 1. The extension block 204 slides in the rectangular groove. Knobs are arranged at one ends of the bidirectional lead screw 205 and the threaded rod 203 passing through the moving block 201. Limiting rods 206 are inserted through the interiors of both sides of the clamping block 6. One end of the limiting rod 206 passes through the extension block 204 and is fixedly connected to the outer surface of the moving block 201.

[0030] Furthermore, after the clamping block 6 is fixed, the workpiece can be centered by rotating the bidirectional lead screw 205. Before adjustment, the threaded rod 203 needs to be rotated to make the pressing block 208 move inward to the maximum position along with the threaded rod 203. Then, by rotating the bidirectional lead screw 205, the moving block 201 is driven to move under the action of the limiting rod 206 and the threaded sleeve 202. During the movement of the moving block 201, the pressing blocks 208 on both sides of the clamping block 6 are gradually driven to move closer to the center position, thereby realizing the centering positioning of one side of the workpiece. Then, the same steps are carried out for the centering adjustment of the other side of the workpiece. When centering an irregular workpiece, when rotating the bidirectional lead screw 205 to drive the moving block 201 to move during the centering adjustment of the other centering component 2, when one pressing block 208 has already contacted the workpiece, the threaded rod 203 can be adjusted, thereby driving the pressing block 208 to gradually retract until the other pressing block 208 also contacts the workpiece, completing the centering positioning of one side of the irregular workpiece. And the pressing block 208 is hinged to the hinge seat 207, and the hinge seat 207 is movably connected to one end of the threaded rod 203, enabling the pressing block 208 to rotate for the clamping position of the irregular workpiece, thus facilitating clamping better.

[0031] Embodiment 2

[0032] Reference Figure 1 With Figure 4 This is the second embodiment of the present utility model. Based on the previous embodiment, the limit component 7 includes a connecting block 703 fixedly connected to the upper surface of the clamping block 6. The upper surface of the connecting block 703 passes through the baffle 1 and is fixedly connected with a pressing piece 702. An eccentric wheel 707 is slidably connected to the outer surface of the rotating shaft 5, and a fixing block 706 is fixedly connected to the outer surface of the eccentric wheel 707.

[0033] Specifically, a card strip is provided on the outer surface of the rotating shaft 5. The eccentric wheel 707 and the fixing piece 705 can slide on the outer surface of the rotating shaft 5 and rotate as the rotating shaft 5 rotates. Two connecting plates 701 are inserted into the inner sides of the clamping block 6. The top ends of the connecting plates 701 are fixedly connected with a connecting ring 704. The inner wall of the connecting ring 704 is movably connected with a fixing piece 705. A connecting rod 708 is fixedly connected to the outer surface of the fixing piece 705. One end of the connecting rod 708 is fixedly connected to the outer surface of the eccentric wheel 707. A chute for the sliding of the connecting block 703 is provided on the upper surface of the baffle 1. The diameter of the pressing piece 702 is greater than the width of the chute. Tooth-shaped protrusions are provided on the upper surface of the chute, and a soft gasket is provided on the lower surface of the pressing piece 702.

[0034] Further, slide the clamping block 6 to drive the clamping block 6 to move to the position corresponding to the workpiece, so as to clamp the workpiece. During the movement of the slider, the connecting plate 701 is driven to move. The connecting plate 701 drives the fixing piece 705 to slide through the connecting ring 704. The fixing piece 705 drives the eccentric wheel 707 to rotate through the connecting rod 708. When the clamping block 6 moves to a suitable position, the rotating shaft 5 is rotated, so that the fixing block 706 is driven to rotate by the eccentric wheel 707, and the fixing block 706 presses the fixing piece 705. A soft material is provided on the lower surface of the fixing piece 705, and tooth-shaped protrusions are provided on both sides of the chute on the upper surface of the baffle 1. When the fixing piece 705 is pressed, the soft material can be deformed to fill the gaps of the tooth-shaped protrusions, thereby increasing the friction force and realizing the fixation of the clamping block 6. When the rotating shaft 5 rotates, the fixing piece 705, the connecting rod 708 and the eccentric wheel 707 rotate simultaneously, so as not to affect the fixing of the fixing piece 705 by the eccentric wheel 707 driving the fixing block 706.

[0035] Working principle: When manufacturing and processing after the mechanical design is completed, move a clamping block 6 to the edge position, then place the workpiece on the clamping block 6, and by moving another clamping block 6, the workpiece is fixed by the two clamping blocks 6. Then rotate the rotating shaft 5, so that the eccentric wheel 707 drives the fixed block 706 to rotate, causing the fixed block 706 to squeeze the fixed piece 705. There is a soft material on the lower surface of the fixed piece 705, and there are tooth-shaped protrusions on both sides of the chute on the upper surface of the baffle 1. When squeezing the fixed piece 705, the soft material can be deformed to fill the gaps between the tooth-shaped protrusions, thereby increasing the friction force and realizing the fixation of the clamping block 6. After the clamping block 6 is fixed, the workpiece is centered by rotating the bidirectional lead screw 205. Before adjustment, the rotating threaded rod 203 needs to be rotated so that the extrusion block 208 moves inward along with the threaded rod 203 to the maximum position. Then, by rotating the bidirectional lead screw 205, the moving block 201 is driven to move under the action of the limiting rod 206 and the threaded sleeve 202. During the movement of the moving block 201, the extrusion blocks 208 on both sides of the clamping block 6 are gradually driven to move closer to the center position, thereby realizing the centering positioning of one side of the workpiece. Then, the centering adjustment of the other side of the workpiece is carried out in the same steps. When centering and adjusting the special-shaped workpiece, when rotating the bidirectional lead screw 205 to drive the moving block 201 to move, when one extrusion block 208 has contacted the workpiece, the threaded rod 203 can be adjusted to drive the extrusion block 208 to gradually retract until the other extrusion block 208 also contacts one side of the workpiece, and finally the centering positioning is completed.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A mechanical design, manufacturing and processing positioning device, including a base (3), with baffles (1) arranged on both sides of the base (3), characterized in that: The upper surface of the base (3) is fixedly connected with a slide rail (4). The upper surface of the slide rail (4) is slidably connected with two clamping blocks (6). The upper surfaces of the two clamping blocks (6) are both provided with two limiting components (7). A centering component (2) is inserted into the clamping block (6). The upper surface of the baffle (1) is movably connected with a rotating shaft (5) through a bearing seat; The centering component (2) includes a bidirectional lead screw (205) inserted into the clamping block (6). The outer surface of the bidirectional lead screw (205) is threadedly connected with two threaded sleeves (202). The outer surface of the threaded sleeve (202) is fixedly connected with a moving block (201). Two threaded rods (203) are inserted into the moving block (201). One ends of the two threaded rods (203) far away from the moving block (201) are both movably connected with hinge seats (207). One side of the hinge seat (207) far away from the threaded rod (203) is hinged with a pressing block (208); The limiting component (7) includes a connecting block (703) fixedly connected to the upper surface of the clamping block (6). The upper surface of the connecting block (703) passes through the baffle (1) and is fixedly connected with a pressing piece (702). An eccentric wheel (706) is slidably connected to the outer surface of the rotating shaft (5). A fixing block (707) is fixedly connected to the outer surface of the eccentric wheel (706).

2. The positioning device for mechanical design, manufacturing and processing according to claim 1, wherein: Extension blocks (204) are fixedly connected to both sides of the clamping block (6). A rectangular groove for the extension block (204) to slide is formed in the baffle (1). The extension block (204) slides in the rectangular groove.

3. A mechanical design, manufacturing and processing positioning device according to claim 2, characterized in that: Knobs are arranged at one ends of the bidirectional lead screw (205) and the threaded rod (203) passing through the moving block (201). Limiting rods (206) are inserted into the inner sides of both sides of the clamping block (6). One end of the limiting rod (206) passes through the extension block (204) and is fixedly connected to the outer surface of the moving block (201).

4. A mechanical design, manufacturing, and processing positioning device according to claim 3, characterized in that: A card strip is arranged on the outer surface of the rotating shaft (5). The eccentric wheel (706) and the fixing piece (705) can slide on the outer surface of the rotating shaft (5) and rotate as the rotating shaft (5) rotates.

5. A mechanical design, manufacturing and processing positioning device according to claim 4, characterized in that: Two connecting plates (701) are inserted into the inner sides of both sides of the clamping block (6). The top ends of the connecting plates (701) are fixedly connected with connecting rings (704). The inner wall of the connecting ring (704) is movably connected with a fixing piece (705). A connecting rod (708) is fixedly connected to the outer surface of the fixing piece (705). One end of the connecting rod (708) is fixedly connected to the outer surface of the eccentric wheel (706).

6. The positioning device for mechanical design, manufacturing and processing according to claim 5, characterized in that: A sliding groove for the connecting block (703) to slide is formed on the upper surface of the baffle (1). The diameter of the pressing piece (702) is larger than the width of the sliding groove. A toothed protrusion is arranged on the upper surface of the sliding groove. A soft gasket is arranged on the lower surface of the pressing piece (702).

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