Quick positioning anti-abrasion clamp structure for precision machining

Abstract

The utility model discloses a quick positioning anti-abrasion clamp structure for precision machining, which relates to the technical field of precision machining clamps and comprises a fixing seat, an adjusting component is arranged at the upper end of the fixing seat, a fixing table is arranged at the top end of the adjusting component, and a clamp mechanism is arranged at the upper end of the fixing table. A first motor is fixedly arranged at the right end of the fixing table, a two-way lead screw is rotationally installed in the middle of the interior of the fixing table, and guide rods are symmetrically and fixedly arranged on the two sides of the interior of the fixing table. A tightly-machined part is placed between the two sets of clamping plates, then the rotating two-way lead screw can drive the movable bases installed on the two sides in a threaded mode to get close to each other, the movable bases drive the installation bases to move synchronously through the sliding blocks, then the two sets of clamping plates move relatively, and therefore the part is clamped, and clamping of the part is completed. In this way, the effect of clamping and fixing parts of different sizes is achieved.

Description

Technical Field

[0001] This utility model relates to the field of precision machining fixture technology, specifically to a quick-positioning and wear-resistant fixture structure for precision machining. Background Technology

[0002] In the machining of precision parts, machining is usually required. Machining must ensure that the precision parts are fixed. In order to ensure the stability of the parts during machining, fixtures are usually used to fix them.

[0003] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for construction or inspection; it is also called a clamp.

[0004] Chinese patent CN215317194U discloses a high-accuracy machining fixture for precision machining. The solution describes that by using a base plate, work box, threaded rod, driven bevel gear, driving bevel gear, transmission rod, connecting rod, motor, driving gear, driven gear, battery, controller, top plate, infrared transmitter and infrared receiver in combination, the fixture can automatically clamp parts and ensure clamping accuracy, thereby improving clamping efficiency and bringing great convenience to machining.

[0005] However, during use, most fixtures are of a specified size, which makes it inconvenient to clamp and fix parts of different sizes, thus affecting the processing efficiency; at the same time, it is inconvenient to make stable adjustments to the processing angle after clamping and positioning, resulting in a reduction in the effectiveness of the fixture. Utility Model Content

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A quick-positioning wear-resistant fixture structure for precision machining includes a fixed base, an adjustment assembly at the upper end of the fixed base, a fixed platform at the top of the adjustment assembly, a clamping mechanism at the upper end of the fixed platform, a motor fixedly mounted at the right end of the fixed platform, a bidirectional lead screw rotatably mounted inside the fixed platform, guide rods symmetrically fixed on both sides inside the fixed platform, and symmetrically formed sliding grooves on the upper surface of the fixed platform. Movable seats are slidably mounted on both sides of the bidirectional lead screw and guide rods, and a slider is fixedly connected to the upper end of the movable seat.

[0008] The clamping mechanism includes a mounting base, the lower end of which is fixedly connected to the upper end of the slider. A crossbar is fixedly connected to the inner side of the mounting base. A cross plate is fixedly installed at the top of the crossbar. Limiting rods are slidably installed on both sides of the cross plate. A spring is sleeved on the bottom of the limiting rod. A clamping plate is fixedly connected to the bottom of the limiting rod. A rubber pad is movably provided on the front side of the clamping plate. A slot is opened in the middle of the inner side of the clamping plate. An insert is fixedly provided at the rear end of the rubber pad. A cross frame is fixedly connected to one end of the clamping plate. A sliding rod is slidably connected to the inner side of the cross frame. Connecting rods are slidably installed on both sides of the cross frame. A spring is sleeved on the bottom of the sliding rod. A baffle is fixedly provided at the bottom of the connecting rod and the sliding rod. A force-applying plate is fixedly installed at the top of the connecting rod and the sliding rod.

[0009] Preferably, the limiting rod is T-shaped, the two ends of the spring are fixedly connected to the opposite surfaces of the horizontal plate and the clamping plate, and the insert block matches the slot and is slidably installed.

[0010] Preferably, the two ends of the second spring are fixedly connected to the opposite surfaces of the crossbeam and the baffle, respectively, and the baffle is fitted into the opening of the slot and is slidably installed.

[0011] Preferably, the adjustment assembly includes a column, the lower end of which is rotatably mounted to the middle of the upper end of the fixed base. A gear is fixedly sleeved on the outside of the column. A motor is fixedly mounted on one side of the upper end of the fixed base. A gear is drivenly mounted on the top of the output rod of the motor. An annular groove is formed on the outer surface of the fixed base. Vertical rods are symmetrically fixed on both sides of the lower end of the fixed platform. A ring block is fixedly connected to the lower end of each vertical rod.

[0012] Preferably, gear one and gear two mesh with each other.

[0013] Preferably, the ring block is fitted into the ring groove and is slidably installed.

[0014] Preferably, the top end of the bidirectional lead screw is driven and installed with the output end of the motor, and the bidirectional lead screw is threadedly installed with the middle part of the moving seat.

[0015] Preferably, the top of the slider extends out of the interior of the fixed platform through a groove, and the slider is slidably installed with the groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model provides a quick-positioning and wear-resistant fixture structure for precision machining. The fixture mechanism places the workpiece between two sets of clamping plates. A rotating bidirectional lead screw drives threaded movable seats on both sides to move closer together. These movable seats, via sliders, drive the mounting seats to move synchronously, causing the two sets of clamping plates to move relative to each other, thus clamping the workpiece. This achieves the effect of clamping and fixing workpieces of different sizes. When the rubber pad in front of the clamping plate touches the workpiece, the spring on the limit rod contracts, buffering the workpiece and preventing rigid contact between the workpiece and the clamping plate. Simultaneously, the rubber pad prevents over-clamping and wear, thereby improving the machining quality of the workpiece.

[0018] This utility model provides a quick positioning and wear-resistant fixture structure for precision machining. By adjusting the components, the column can be rotated through the meshing of gear one and gear two. The column can drive the fixed table to rotate, so as to adjust the position of the fixed cold part. This allows for convenient and stable adjustment of the machining angle after clamping and positioning, thereby improving the effectiveness of the device. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the quick positioning and wear-resistant fixture structure for precision machining according to this utility model;

[0020] Figure 2 This is a structural schematic diagram showing the detailed structure of the rapid positioning and wear-resistant fixture for precision machining according to this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model;

[0023] Figure 5 This is a structural schematic diagram showing the details of the clamping mechanism of this utility model.

[0024] In the diagram: 1. Fixed base; 2. Adjustment assembly; 3. Fixed platform; 4. Clamping mechanism; 5. Motor 1; 6. Double-acting lead screw; 7. Guide rod; 8. Slide groove; 9. Moving base; 10. Slider; 21. Column; 22. Gear 1; 23. Motor 2; 24. Gear 2; 25. Ring groove; 26. Ring block; 27. Upright pole; 41. Mounting base; 42. Crossbar; 43. Cross plate; 44. Limiting rod; 45. Spring 1; 46. Clamping plate; 47. Rubber pad; 48. Slot; 49. Insert block; 410. Cross frame; 411. Slide rod; 412. Connecting rod; 413. Spring 2; 414. Baffle; 415. Force plate. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments:

[0026] like Figures 1-5 As shown, this utility model provides a quick positioning and wear-resistant fixture structure for precision machining, including a fixed base 1, an adjustment component 2 at the upper end of the fixed base 1, a fixed platform 3 at the top of the adjustment component 2, a fixture mechanism 4 at the upper end of the fixed platform 3, a motor 5 fixedly mounted at the right end of the fixed platform 3, a bidirectional lead screw 6 rotatably mounted inside the fixed platform 3, guide rods 7 symmetrically fixed on both sides inside the fixed platform 3, and sliding grooves 8 symmetrically opened on the upper surface of the fixed platform 3. Moving seats 9 are slidably mounted on both sides of the bidirectional lead screw 6 and guide rods 7, and a slider 10 is fixedly connected to the upper end of the moving seat 9.

[0027] The top of the bidirectional lead screw 6 is connected to the output end of the motor 5 for transmission, and the bidirectional lead screw 6 is threadedly connected to the middle of the moving seat 9.

[0028] The top of the slider 10 extends out of the interior of the fixed platform 3 through the slide groove 8, and the slider 10 is slidably installed with the slide groove 8.

[0029] In this scheme, the movable seat 9 can move under the guidance of the guide rod 7 to improve the smoothness of the movement of the movable seat 9. Through the threaded transmission design of the two-way lead screw 6 and the movable seat 9, the distance between its clamping plates 46 can be flexibly adjusted according to the size of the parts, so that the clamping plates 46 can be moved to a suitable position to achieve clamping and fixing of parts of different sizes.

[0030] like Figures 4-5 As shown, the clamping mechanism 4 includes a mounting base 41. The lower end of the mounting base 41 is fixedly connected to the upper end of the slider 10. A crossbar 42 is fixedly connected to the inner side of the mounting base 41. A cross plate 43 is fixedly installed at the top of the crossbar 42. Limiting rods 44 are slidably installed on both sides of the cross plate 43. A spring 45 is sleeved on the outer side of the bottom end of the limiting rod 44. A clamping plate 46 is fixedly connected to the bottom end of the limiting rod 44. A rubber pad 47 is movably provided on the front side of the clamping plate 46. An opening is provided in the middle of the inner side of the clamping plate 46. The device has a slot 48, a plug 49 fixedly installed at the rear end of the rubber pad 47, a crossbar 410 fixedly connected to one end of the clamping plate 46, a slide rod 411 slidably connected to the inner side of the crossbar 410, a connecting rod 412 slidably installed on both sides of the crossbar 410, a spring 413 sleeved on the bottom end of the slide rod 411, a baffle 414 fixedly installed at the bottom end of the connecting rod 412 and the slide rod 411, and a force plate 415 fixedly installed at the top end of the connecting rod 412 and the slide rod 411.

[0031] The limiting rod 44 is T-shaped, and the two ends of the spring 45 are fixedly connected to the opposite surfaces of the horizontal plate 43 and the clamping plate 46, respectively. The insert 49 matches the slot 48 and is slidably installed.

[0032] The two ends of the second spring 413 are fixedly connected to the opposite surfaces of the cross frame 410 and the baffle 414, respectively. The baffle 414 is fitted into the opening of the slot 48 and is slidably installed.

[0033] In this solution, the rubber pad 47 can prevent the outer wall of the part from directly contacting the clamping plate 46, effectively preventing scratches, indentations and other wear on the surface of the part caused by clamping.

[0034] In this design, the rubber pad 47 is slidably installed between the insert block 49 and the slot 48 on the clamping plate 46, allowing for quick installation and removal of the rubber pad 47 for easy replacement. Pulling the force plate 415 causes it to move synchronously with the baffle 414 via the connecting rod 412 and the sliding rod 411. This compresses the second spring 413, opening the slot 48 and facilitating the sliding separation of the insert block 49 from the slot 48. The spring 413 also pushes the baffle 414 forward, blocking the opening of the slot 48 and limiting the position of the insert block 49, thus completing the fixed installation of the rubber pad 47.

[0035] like Figure 3 As shown, the adjustment assembly 2 includes a column 21, the lower end of which is rotatably mounted to the middle of the upper end of the fixed base 1. A gear 22 is fixedly sleeved on the outside of the column 21. A motor 23 is fixedly mounted on one side of the upper end of the fixed base 1. A gear 24 is drivenly mounted on the top of the output rod of the motor 23. An annular groove 25 is opened on the outer surface of the fixed base 1. Uprights 27 are symmetrically fixed on both sides of the lower end of the fixed platform 3. A ring block 26 is fixedly connected to the lower end of the uprights 27.

[0036] Gear 1, 22 and gear 2, 24 mesh with each other.

[0037] The ring block 26 is fitted into the ring groove 25 and is slidably installed.

[0038] In this design, the upright 27 drives the ring block 26 to slide within the ring groove 25, thereby improving the stability of the fixed platform 3 during rotation.

[0039] The working principle of this rapid positioning and wear-resistant fixture structure used for precision machining will be explained in detail below.

[0040] like Figures 1-5As shown, this quick-positioning anti-wear fixture structure for precision machining allows the workpiece to be placed between two sets of clamping plates 46 when machining precision parts. Then, motor 5 is activated, driving the bidirectional lead screw 6 to rotate. The bidirectional lead screw 6 causes the threaded movable seats 9 on both sides to move closer together. The threaded seats, via slider 10, drive the mounting base 41 and crossbar 42 to move synchronously. The crossbar 42 pushes the clamping plates 46 towards the workpiece. As the clamping plates 46 gradually approach the workpiece, the rubber pad 47 at the front end of the clamping plates 46 first contacts the workpiece surface. As the clamping plates 46 continue to move, the spring on the limit rod 44... The compression of part 45 provides cushioning for the connection, preventing rigid contact between the part and clamping plate 46. Simultaneously, the rubber pad 47 prevents wear and tear caused by clamping plate 46, thus improving the production quality of the part. By starting motor 23, which drives gear 24, gear 24, through meshing gear 1 22, synchronously drives column 21 to rotate. Column 21 then drives fixed table 3 to rotate. Simultaneously, fixed table 3, through rod 27, drives ring block 26 to rotate within ring groove 25 for support. This completes the angle adjustment and processing of fixed table 3 and clamped part. The above describes the usage process of the fixture structure.

[0041] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A quick positioning anti-abrasion fixture structure for precision machining, comprising a fixed base (1), the upper end of the fixed base (1) is provided with an adjusting assembly (2), characterized in that: The top of the adjustment component (2) is provided with a fixed platform (3), the upper end of the fixed platform (3) is provided with a clamping mechanism (4), the right end of the fixed platform (3) is fixedly provided with a motor (5), a double-acting screw (6) is rotatably installed in the middle of the interior of the fixed platform (3), guide rods (7) are symmetrically fixed on both sides of the interior of the fixed platform (3), and sliding grooves (8) are symmetrically opened on the upper surface of the fixed platform (3). Moving seats (9) are slidably installed on both sides of the exterior of the double-acting screw (6) and the guide rods (7), and a slider (10) is fixedly connected to the upper end of the moving seat (9). The clamping mechanism (4) includes a mounting base (41), the lower end of which is fixedly connected to the upper end of the slider (10). A crossbar (42) is fixedly connected to the inner side of the mounting base (41). A cross plate (43) is fixedly installed at the top of the crossbar (42). Limiting rods (44) are slidably installed on both sides of the cross plate (43). A spring (45) is sleeved on the bottom of the limiting rod (44). A clamping plate (46) is fixedly connected to the bottom of the limiting rod (44). A rubber pad (47) is movably provided on the front side of the clamping plate (46). An opening is provided in the middle of the inner side of the clamping plate (46). The device has a slot (48), and a plug (49) is fixedly provided at the rear end of the rubber pad (47). A crossbar (410) is fixedly connected to one end of the clamp (46). A slide rod (411) is slidably connected to the inner side of the crossbar (410). A connecting rod (412) is slidably installed on both sides of the crossbar (410). A spring (413) is sleeved on the bottom end of the slide rod (411). A baffle (414) is fixedly provided at the bottom end of the connecting rod (412) and the slide rod (411). A force plate (415) is fixedly installed at the top end of the connecting rod (412) and the slide rod (411).

2. A quick positioning wear resistant fixture structure for precision machining according to claim 1, characterized in that: The limiting rod (44) is T-shaped, and the two ends of the spring (45) are fixedly connected to the opposite surfaces of the horizontal plate (43) and the clamping plate (46), respectively. The insert (49) matches the slot (48) and is slidably installed.

3. The quick positioning wear resistant fixture structure for precision machining according to claim 1, characterized in that: The two ends of the second spring (413) are fixedly connected to the opposite surfaces of the cross frame (410) and the baffle (414), respectively. The baffle (414) is fitted into the opening of the slot (48) and is slidably installed.

4. The quick positioning wear resistant fixture structure for precision machining according to claim 1, characterized in that: The adjustment assembly (2) includes a column (21), the lower end of which is rotatably mounted to the middle of the upper end of the fixed base (1). A gear (22) is fixedly sleeved on the outside of the column (21). A motor (23) is fixedly mounted on one side of the upper end of the fixed base (1). A gear (24) is drivenly mounted on the top of the output rod of the motor (23). An annular groove (25) is opened on the outer surface of the fixed base (1). A column (27) is symmetrically fixed on both sides of the lower end of the fixed platform (3). A ring block (26) is fixedly connected to the lower end of the column (27).

5. A quick positioning wear resistant fixture structure for precision machining as claimed in claim 4 wherein: The first gear (22) and the second gear (24) mesh with each other.

6. A quick positioning wear resistant fixture structure for precision machining as claimed in claim 4 wherein: The ring block (26) is fitted into the ring groove (25) and is slidably installed.

7. The quick positioning wear resistant fixture structure for precision machining according to claim 1, characterized in that: The top end of the bidirectional screw rod (6) is in transmission installation with the output end of the motor (5), and the bidirectional screw rod (6) is in screw installation with the middle part of the moving seat (9).

8. The quick positioning wear resistant fixture structure for precision machining according to claim 1, characterized in that: The top end of the sliding block (10) extends out of the inside of the fixed table (3) through the sliding groove (8), and the sliding block (10) is in sliding installation with the sliding groove (8).

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