Multifunctional clamp for precision machining

Abstract

The utility model discloses a multifunctional clamp for precision machining, and relates to the technical field of multifunctional clamps. The clamping device comprises a base, a lifting seat, a fixing seat, a first clamping plate and a second clamping plate, the lifting seat is arranged above the base, the fixing seat is arranged above the lifting seat, a fixing area for fixing a machined part is arranged in the middle of the fixing seat, a T-shaped rail is fixedly installed in the middle of the fixing area, and the first clamping plate and the second clamping plate are fixedly installed on the T-shaped rail. According to the utility model, after the first clamping plate or the second clamping plate abuts against a workpiece, the abutting end of the side pressing plate abuts against the pressure sensor, and after the pressure sensor obtains analog quantity data, the detection plate is connected with the sliding block in a sliding manner, and the detection plate is fixed on the sliding block. A numerical value is displayed after being processed by a display chip at the front end of the detection plate, so that a user can conveniently know whether fixation is firm or not, and meanwhile, whether a machined part is damaged by clamping force or not can be judged according to a numerical value threshold value.

Description

Technical Field

[0001] The utility model belongs to the field of multifunctional clamps, in particular to a multifunctional clamp for precision machining. Background Art

[0002] A multifunctional clamp is a clamp used for precision machining of parts. The multifunctional clamp realizes the rotation function through a rotating motor arranged at its bottom. In addition, the lifting function is realized by a telescopic structure. Most existing multifunctional clamps use motors to clamp parts that need to be precisely machined. Since the force of the motor cannot be controlled during the clamping process, the parts are easily damaged. In view of this, the present utility model is specially proposed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a multifunctional fixture for precision machining.

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] A multifunctional fixture for precision machining, comprising a base, a lifting seat, a fixed seat, a first clamping plate and a second clamping plate, characterized in that a lifting seat is provided above the base, a fixed seat is provided above the lifting seat, a fixing area for fixing a workpiece is provided in the middle of the fixed seat, a T-rail is fixedly installed in the middle of the fixing area, sliders are slidably connected to both sides of the upper end of the T-rail, a detection plate is fixed to the upper end of each slider, a pressure measuring plate is movably connected to the inner side of each detection plate, and a contact end for contacting a pressure sensor is provided inside the pressure measuring plate;

[0006] A T-shaped end for clamping a first clamping plate and a second clamping plate is fixed to the side of each pressure plate. The first clamping plate and the second clamping plate are used to respectively contact the side walls of the plate-shaped workpiece and the tubular workpiece. Anti-slip pads are fixed to the contact surfaces of the first clamping plate and the second clamping plate with the workpiece.

[0007] The touch pressure sensor is passed through a wire to the front end of the detection board and is connected to the display circuit at the front end of the detection board. Electric push rods are installed on both sides of the fixing seat. The telescopic end of each electric push rod passes through the side end of the fixing seat and is fixed to the outer side of the detection board.

[0008] Optionally, guide rods are symmetrically fixed inside the detection plate, and the external dimensions of the guide rods are smaller than the internal dimensions of the guide holes. The guide holes are opened at the upper and lower ends of the pressure measuring plate. A first spring is sleeved on the outside of each guide rod, and the two ends of the first spring respectively contact the pressure measuring plate and the detection plate.

[0009] Optionally, movable cavities are provided at both upper and lower ends of the T-shaped end for movable connection of the positioning head, and a second spring is provided inside each movable cavity to interfere with the bottom of the positioning head, and the external dimensions of the positioning head are smaller than the internal dimensions of the positioning hole, and the positioning holes are provided on the upper and lower sides of the first clamping plate and the second clamping plate.

[0010] Optionally, a storage cavity for placing the first clamping plate or the second clamping plate is opened in the middle of the base, and cover plates are rotatably connected to the front ends of the storage cavity by hinges. Cavities for installing four multi-stage electric telescopic columns are also opened on both sides of the upper end of the base, and the telescopic ends of the four multi-stage electric telescopic columns are fixed to the bottom of the lifting seat.

[0011] Optionally, a reserved groove for installing a stepper motor is opened in the middle of the lifting seat, a motor driver is provided at the front end of the stepper motor, and the output shaft of the stepper motor passes through the top of the reserved groove and is fixed to the bottom of the fixed seat, an annular rail is provided between the fixed seat and the lifting seat, a plurality of first balls are provided between the two annular rails, and an upper annular connector and a lower annular connector are also provided between the fixed seat and the lifting seat, and the surface of the upper annular connector is provided with a second ball that contacts the surface of the lower annular connector.

[0012] Optionally, multifunctional cavities are provided on both sides of the lifting seat, and guide blocks for connecting guide rails are provided inside the two multifunctional cavities, and the guide blocks are fixed to the multifunctional drawers. A support is fixed inside each of the multifunctional drawers, and the support is connected to the universal rod through a damping shaft. An auxiliary lighting lamp is fixed to the end of the universal rod, and magnetic blocks for adsorbing the open end of the multifunctional cavity are fixed at the upper and lower ends of the outer side of the multifunctional drawer.

[0013] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0014] 1. In the present invention, after the first clamping plate or the second clamping plate contacts the workpiece, the contact end of the side pressure plate contacts the pressure sensor. After the pressure sensor obtains analog data, the data is processed by the display chip at the front end of the detection board and displayed. This not only allows the user to know whether the fixation is firm, but also allows the user to judge whether the clamping force will damage the workpiece based on the numerical threshold.

[0015] 2. The present invention takes into account that the workpieces are mainly plate-shaped or tubular, so the first clamping plate and the second clamping plate are designed. They can be replaced as needed. When replacing, the positioning head is pressed down and the first clamping plate or the second clamping plate is pulled out from the outside of the T-shaped end, which is very convenient.

[0016] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0018] In the picture:

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the combined parts of the detection board and the display in the utility model;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of part A;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of part B;

[0023] Figure 5 for Figure 1 Schematic diagram of the C part structure.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Base; 2. Lifting seat; 3. Fixed seat; 4. T-rail; 5. Slider; 6. Detection plate; 7. Pressure measuring plate; 8. Touch pressure sensor; 9. Contact end; 10. First clamping plate; 11. Second clamping plate; 12. Anti-slip pad; 13. Display; 14. Electric push rod; 15. Guide rod; 16. First spring; 17. Second spring; 18. Cover plate; 19. Multi-stage electric telescopic column; 20. Stepper motor; 21. Motor driver; 22. Ring rail; 23. First ball bearing; 24. Upper ring connector; 25. Lower ring connector; 26. Second ball bearing; 27. Multi-function cavity; 28. Guide rail; 29. ​​Guide block; 30. Multi-function drawer; 31. Support; 32. Damping shaft; 33. Universal rod; 34. Auxiliary lighting; 35. Magnetic block.

[0026] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] See also Figures 1 to 5 The utility model provides a technical solution: a multifunctional clamp for precision machining, comprising a base 1, a lifting seat 2, a fixing seat 3, a first clamping plate 10 and a second clamping plate 11. A lifting seat 2 is provided above the base 1, and a fixing seat 3 is provided above the lifting seat 2. A fixing area for fixing a workpiece is provided in the middle of the fixing seat 3, and a T-shaped rail 4 is fixedly installed in the middle of the fixing area. Sliders 5 are slidably connected to both sides of the upper end of the T-shaped rail 4, and a detection plate 6 is fixed to the upper end of each slider 5. A pressure measuring plate 7 is movably connected to the inner side of each detection plate 6, and a contact end 9 for contacting a pressure sensor 8 is provided inside the pressure measuring plate 7;

[0029] Each pressure plate 7 is fixed with a T-shaped end on its side for clamping a first clamping plate 10 and a second clamping plate 11. The first clamping plate 10 and the second clamping plate 11 are used to respectively contact the side walls of the plate-shaped workpiece and the tubular workpiece. The contact surfaces of the first clamping plate 10 and the second clamping plate 11 with the workpiece are fixed with anti-slip pads 12.

[0030] The touch pressure sensor 8 is passed through a wire to the front end of the detection plate 6 and is connected to the display 13 circuit at the front end of the detection plate 6. Electric push rods 14 are installed on both sides of the fixing seat 3. The telescopic end of each electric push rod 14 passes through the side end of the fixing seat 3 and is fixed to the outer side of the detection plate 6. Considering that most of the existing multi-functional clamps use motors to clamp the parts that need to be precisely processed. Since there is no way to control the force of the motor during the clamping process, it is easy to damage the parts. In the utility model, after the first clamping plate 10 or the second clamping plate 11 collides with the workpiece, the contact end 9 of the side pressure plate collides with the pressure sensor. After the pressure sensor obtains analog data, it is processed by the display 13 chip at the front end of the detection plate 6 and displays the value. It not only makes it convenient for the user to know whether the fixation is firm, but also can judge whether the clamping force will damage the workpiece according to the numerical threshold.

[0031] Among them, the inside of the detection plate 6 is symmetrically fixed with a guide rod 15, the external size of the guide rod 15 is smaller than the internal size of the guide hole, the guide hole is opened at the upper and lower ends of the pressure measuring plate 7, and each guide rod 15 is sleeved with a first spring 16 on the outside, and the two ends of the first spring 16 are respectively in contact with the pressure measuring plate 7 and the detection plate 6. By setting the guide rod 15 and coordinating with the guide hole, the pressure measuring plate 7 that moves to the side of the detection plate 6 plays a role in guiding movement.

[0032] Among them, the upper and lower ends of the T-shaped end are provided with movable cavities for the movable connection of the positioning head, and a second spring 17 is provided inside each movable cavity to interfere with the bottom of the positioning head, and the external size of the positioning head is smaller than the internal size of the positioning hole. The positioning holes are provided on the upper and lower sides of the first clamping plate 10 and the second clamping plate 11. By setting the positioning head and cooperating with the second spring 17 to push into the positioning hole, the position of the T-shaped end and the first clamping plate 10 or the second clamping plate 11 is fixed.

[0033] Among them, a storage cavity for placing the first clamping plate 10 or the second clamping plate 11 is opened in the middle of the base 1, and a cover plate 18 is connected to both sides of the front end of the storage cavity through a hinge. Cavities for installing four multi-stage electric telescopic columns 19 are also opened on both sides of the upper end of the base 1. The telescopic ends of the four multi-stage electric telescopic columns 19 are fixed to the bottom of the lifting seat 2. By setting a multi-stage electric push rod 14, the lifting seat 2 is lifted and lowered, thereby adapting to the height of the workpiece fixed in the fixed area to the required processing height during processing.

[0034] Among them, a reserved groove for the installation of the stepper motor 20 is opened in the middle of the lifting seat 2, a motor driver 21 is provided at the front end of the stepper motor 20, and the output shaft of the stepper motor 20 passes through the top of the reserved groove and is fixed to the bottom of the fixed seat 3, and an annular rail 22 is provided between the fixed seat 3 and the lifting seat 2, and a plurality of first balls 23 are provided between the two annular rails 22, and an upper annular connector 24 and a lower annular connector 25 are also provided between the fixed seat 3 and the lifting seat 2, and the surface of the upper annular connector 24 is provided with a second ball 26 that contacts the surface of the lower annular connector 25. At the same time, the stepper motor 20 is provided to rotate the fixed seat 3, which facilitates the use of the above structure to rotate the workpiece to the required processing orientation, that is, the rotation of the output shaft of the stepper motor 20 drives the fixed seat 3 to rotate and change its orientation.

[0035] Among them, multi-functional cavities 27 are opened on both sides of the lifting seat 2, and guide blocks 29 for connecting the guide rails 28 are provided inside the two multi-functional cavities 27, and the guide blocks 29 are fixed to the multi-functional drawers 30. A support 31 is fixed inside each multi-functional drawer 30, and the support 31 is connected to the universal rod 33 through the damping shaft 32. The end of the universal rod 33 is fixed with an auxiliary lighting lamp 34, and the upper and lower ends of the outer side of the multi-functional drawer 30 are fixed with magnetic blocks 35 for adsorbing the open end of the multi-functional cavity 27. At the same time, the universal rod 33 and the auxiliary lighting lamp inside the multi-functional drawer 30 are arranged so that the device can use the unfolded universal rod 33 to adjust the auxiliary lighting lamp 34 for auxiliary lighting, thereby helping the processing personnel to obtain a good visual environment.

[0036] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A multifunctional fixture for precision machining, comprising a base (1), a lifting seat (2), a fixing seat (3), a first clamping plate (10) and a second clamping plate (11), characterized in that: A lifting seat (2) is provided above the base (1), a fixing seat (3) is provided above the lifting seat (2), a fixing area for fixing a workpiece is provided in the middle of the fixing seat (3), a T-shaped rail (4) is fixedly installed in the middle of the fixing area, sliders (5) are slidably connected to both sides of the upper end of the T-shaped rail (4), a detection plate (6) is fixed to the upper end of each slider (5), and a pressure measuring plate (7) is movably connected to the inner side of each detection plate (6), and a contact end (9) for contacting a pressure sensor (8) is provided inside the pressure measuring plate (7); A T-shaped end for clamping a first clamping plate (10) and a second clamping plate (11) is fixed to the side of each pressure measuring plate (7), the first clamping plate (10) and the second clamping plate (11) are used to respectively contact the side walls of the plate-shaped workpiece and the tubular workpiece, and anti-slip pads (12) are fixed to the contact surfaces of the first clamping plate (10) and the second clamping plate (11) with the workpiece; The touch pressure sensor (8) is passed through a wire to the front end of the detection plate (6) and is connected to the display (13) circuit at the front end of the detection plate (6). Electric push rods (14) are installed on both sides of the fixing seat (3). The telescopic end of each electric push rod (14) passes through the side end of the fixing seat (3) and is fixed to the outer side of the detection plate (6).

2. The multifunctional fixture for precision machining according to claim 1, characterized in that: A guide rod (15) is symmetrically fixed inside the detection plate (6), and the external size of the guide rod (15) is smaller than the internal size of the guide hole. The guide hole is opened at the upper and lower ends of the pressure measuring plate (7). A first spring (16) is sleeved on the outside of each guide rod (15), and the two ends of the first spring (16) respectively contact the pressure measuring plate (7) and the detection plate (6).

3. The multifunctional fixture for precision machining according to claim 1, characterized in that: Both upper and lower ends of the T-shaped end are provided with movable cavities for movable connection of the positioning head, and a second spring (17) is provided inside each movable cavity to abut against the bottom of the positioning head, and the outer size of the positioning head is smaller than the inner size of the positioning hole, and the positioning hole is provided on the upper and lower sides of the first clamping plate (10) and the second clamping plate (11).

4. The multifunctional fixture for precision machining according to claim 1, characterized in that: A storage cavity for placing the first clamping plate (10) or the second clamping plate (11) is provided in the middle of the base (1), and cover plates (18) are rotatably connected to both sides of the front end of the storage cavity through hinges. Cavities for installing four multi-stage electric telescopic columns (19) are also provided on both sides of the upper end of the base (1), and the telescopic ends of the four multi-stage electric telescopic columns (19) are fixed to the bottom of the lifting seat (2).

5. The multifunctional fixture for precision machining according to claim 1, characterized in that: A reserved groove for installing a stepper motor (20) is provided in the middle of the lifting seat (2), a motor driver (21) is provided at the front end of the stepper motor (20), and the output shaft of the stepper motor (20) passes through the top of the reserved groove and is fixed to the bottom of the fixed seat (3), an annular rail (22) is provided between the fixed seat (3) and the lifting seat (2), a plurality of first balls (23) are provided between the two annular rails (22), and an upper annular connector (24) and a lower annular connector (25) are also provided between the fixed seat (3) and the lifting seat (2), and the surface of the upper annular connector (24) is provided with a second ball (26) in contact with the surface of the lower annular connector (25).

6. The multifunctional fixture for precision machining according to claim 1, characterized in that: Multifunctional cavities (27) are provided on both sides of the lifting seat (2), and guide blocks (29) for connecting the guide rails (28) are provided inside the two multifunctional cavities (27), and the guide blocks (29) are fixed to the multifunctional drawers (30). A support (31) is fixed inside each of the multifunctional drawers (30), and the support (31) is connected to the universal rod (33) through a damping shaft (32). An auxiliary lighting lamp (34) is fixed to the end of the universal rod (33), and magnetic blocks (35) for adsorbing the open ends of the multifunctional cavities (27) are fixed on the upper and lower ends of the outer side of the multifunctional drawer (30).

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