Rapid workpiece clamp for fine and deep processing

Abstract

The utility model relates to a quick workpiece clamp for fine and deep processing, which belongs to the technical field of workpiece processing and comprises a support and a mounting plate, and a clamping component for clamping a workpiece is arranged at the top of the mounting plate. The clamping assembly comprises four electric push rods fixedly connected to the top of the mounting plate, a connecting plate fixedly connected to movable rods of the electric push rods, an elastic telescopic piece fixedly connected to the other side of the connecting plate, and a fixing plate fixedly connected to the other end of the elastic telescopic piece. The threaded connecting shaft is fixedly connected to the other side of the fixing plate, the clamping plate is connected to the outer side of the threaded connecting shaft in a threaded mode, and an adjusting assembly used for adjusting the position of the clamping assembly is arranged on the back face of the support. According to the rapid workpiece clamp for fine and deep processing, through symmetrical arrangement of the four electric push rods, force can be evenly applied, it is ensured that a workpiece is evenly stressed in the clamping process, workpiece deformation or damage caused by uneven stress is avoided, and through cooperative use of the elastic telescopic part and the pressure sensor, the clamping force can be monitored and controlled in real time.

Description

TECHNICAL FIELD

[0001] The utility model relates to work piece processing technical field, concretely is a work piece fast clamp for precision machining. BACKGROUND

[0002] In modern manufacturing industry, the clamping device of precision machining technology puts forward higher and higher requirements to work piece. The clamping of work piece not only needs to be fast and stable, but also needs to have high precision and adjustability to meet the work piece machining demand of different shapes, sizes and materials.

[0003] China patent publication number CN222449318U proposes a kind of metal work piece processing clamp tool, by setting first inner hole expansion clamp, second inner hole expansion clamp, third inner hole expansion clamp and fourth inner hole expansion clamp, work piece is clamped by force from the inner hole of work piece to outside, will not affect the outer surface processing of work piece, leave all space for the outer surface processing of work piece.

[0004] However, the size of the clamping force cannot be monitored in real time, which may affect the machining quality of the work piece due to excessive or insufficient clamping force, and the position of the clamp cannot be adjusted according to the demand, making it difficult to meet the demand of high-precision machining. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a work piece fast clamp for precision machining, which has the advantages of convenient adjustment, real-time monitoring of clamping force, etc., and solves the problems of inconvenient adjustment and lack of real-time monitoring.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A work piece fast clamp for precision machining, comprising a support and a mounting plate, the top of the mounting plate is provided with a clamping assembly for clamping work piece;

[0008] The clamping assembly comprises four electric push rods fixedly connected to the top of the mounting plate, a connecting plate fixedly connected to the movable rod of the electric push rod, an elastic expansion piece fixedly connected to the other side of the connecting plate, a fixed plate fixedly connected to the other end of the elastic expansion piece, a threaded connection shaft fixedly connected to the other side of the fixed plate, and a clamping plate threaded on the outside of the threaded connection shaft;

[0009] The back of the support is provided with an adjusting assembly for adjusting the position of the clamping assembly.

[0010] Further, the adjusting assembly comprises a motor fixedly connected to the back of the support, a rotating rod fixedly connected to the output shaft of the motor, a drive gear fixedly connected to one end of the front surface of the rotating rod, and a toothed plate engaged with the top of the drive gear, the toothed plate is fixedly connected to the bottom of the mounting plate.

[0011] Further, the rear side of the bracket is provided with a rotating hole matched with the rotating rod, and a bushing is arranged at the inner side of the rotating hole.

[0012] Further, the front side of the mounting plate is fixedly connected with two reinforcing blocks, the inner side of the reinforcing block is slidably connected with a guide rod, and the bottom of the reinforcing block is fixedly connected with a supporting block.

[0013] Further, the left and right ends of the guide rod are bent rearward and fixedly connected with the inner rear side wall of the bracket.

[0014] Further, the four electric push rods are arranged at the left side of the top of the mounting plate, the right side of the top of the mounting plate, the front side of the top of the mounting plate and the back side of the top of the mounting plate respectively.

[0015] Further, one side of the connecting plate is fixedly connected with a pressure sensor.

[0016] Further, the clamping plate is composed of a threaded sleeve and a circular plate, and the clamping surface of the circular plate is fixedly connected with a rubber pad.

[0017] Compared with the prior art, the utility model provides a workpiece quick clamp for precision machining, which has the following beneficial effects:

[0018] The workpiece quick clamp for precision machining can uniformly apply force through the symmetrical arrangement of the four electric push rods, ensure that the workpiece is uniformly stressed during clamping, avoid workpiece deformation or damage caused by uneven stress, and simultaneously, the cooperation of the elastic expansion piece and the pressure sensor can realize real-time monitoring and control of the clamping force, ensure that the clamping force is always within a safe range, improve the clamping precision and reliability, and in addition, the cooperation of the motor, the drive gear and the toothed plate can flexibly adjust the position of the clamping assembly, adapt to different workpiece machining requirements. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view of the utility model structure;

[0020] Figure 2 It is a rear view of the utility model structure;

[0021] Figure 3 It is a plan view of the clamping assembly in the utility model structure;

[0022] Figure 4 It is a perspective view of the bracket and the mounting plate in the utility model structure.

[0023] In the figure: 1, support; 2, mounting plate; 3, electric push rod; 4, connecting plate; 5, elastic expansion piece; 6, fixed plate; 7, threaded connection shaft; 8, clamping plate; 801, threaded sleeve; 802, round plate; 9, motor; 10, rotating rod; 11, drive gear; 12, toothed plate; 13, reinforcing block; 14, guide rod; 15, support block; 16, ball; 17, pressure sensor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1 to 4 The workpiece fast clamp for deep processing in the embodiment comprises a support 1 and a mounting plate 2, and the top of the mounting plate 2 is provided with a clamping assembly for clamping a workpiece.

[0026] Please refer to Figure 1 In the embodiment, the clamping assembly comprises four electric push rods 3 fixedly connected to the top of the mounting plate 2, a connecting plate 4 fixedly connected to the movable rod of the electric push rod 3, an elastic expansion piece 5 fixedly connected to the other side of the connecting plate 4, a fixed plate 6 fixedly connected to the other end of the elastic expansion piece 5, a threaded connection shaft 7 fixedly connected to the other side of the fixed plate 6 and a clamping plate 8 threadedly connected to the outer side of the threaded connection shaft 7.

[0027] The back of the support 1 is provided with an adjusting assembly for adjusting the position of the clamping assembly, and the adjusting assembly comprises a motor 9 fixedly connected to the back of the support 1, a rotating rod 10 fixedly connected to the output shaft of the motor 9, a drive gear 11 fixedly connected to the front end of the rotating rod 10 and a toothed plate 12 engaged with the top of the drive gear 11, wherein the toothed plate 12 is fixedly connected to the bottom of the mounting plate 2.

[0028] Specifically, the rear side in the support 1 is provided with a rotating hole matched with the rotating rod 10, and the inner side of the rotating hole is provided with a bushing, the back of the mounting plate 2 is fixedly connected with a sliding sheet, and the rear side in the support 1 is provided with a sliding groove matched with the sliding sheet.

[0029] It should be noted that the design of the rotating hole ensures that the rotating rod 10 can rotate smoothly, the use of the bushing reduces the friction between the rotating rod 10 and the rotating hole, prolongs the service life of the equipment, and improves the stability of the operation of the adjusting assembly. The cooperation design of the sliding sheet and the sliding groove makes the mounting plate 2 slide smoothly on the support 1, ensuring the stability and accuracy of the clamping assembly when adjusting the position.

[0030] Specifically, the front side of the mounting plate 2 is fixedly connected with two reinforcing blocks 13, the inner side of the reinforcing block 13 is slidably connected with a guide rod 14, and the bottom of the reinforcing block 13 is fixedly connected with a supporting block 15, the bottom of the supporting block 15 is provided with a ball groove, and the inner side of the ball groove is rolled with a ball 16.

[0031] It should be noted that the design of the reinforcing block 13 and the guide rod 14 enhances the structural strength of the mounting plate 2, and further enhances the stability of the mounting plate 2 when sliding, the cooperation of the supporting block 15 and the ball 16 reduces the friction of the mounting plate 2 when moving, so that the adjustment process is more smooth.

[0032] Specifically, the left and right ends of the guide rod 14 are bent backward and fixedly connected with the inner rear side wall of the bracket 1.

[0033] Specifically, the four electric push rods 3 are arranged on the left side of the top of the mounting plate 2, the right side of the top of the mounting plate 2, the front side of the top of the mounting plate 2 and the back side of the top of the mounting plate 2 respectively.

[0034] It should be noted that the symmetrical arrangement of the four electric push rods 3 ensures that the clamping assembly can uniformly apply force, avoiding deformation or damage of the workpiece during clamping due to uneven force.

[0035] Specifically, one side of the connecting plate 4 is fixedly connected with a pressure sensor 17.

[0036] It should be noted that the installation of the pressure sensor 17 enables the clamping assembly to monitor the size of the clamping force in real time, ensures that the clamping force is within a safe range, and avoids affecting the processing quality of the workpiece due to excessive or insufficient clamping force.

[0037] Specifically, the clamping plate 8 is composed of a threaded sleeve 801 and a circular plate 802, and the clamping surface of the circular plate 802 is fixedly connected with a rubber pad.

[0038] It should be noted that the combination of the threaded sleeve 801 and the circular plate 802 enables the clamping plate 8 to be conveniently detached from the threaded connecting shaft 7, thereby facilitating replacement, and the use of the rubber pad increases the friction between the clamping surface and the workpiece, preventing the workpiece from sliding during processing.

[0039] In addition, the elastic expansion piece 5 has a certain elastic deformation capacity, which can provide a buffering effect when the clamping plate 8 contacts the workpiece, avoiding damage or deformation of the workpiece surface caused by rigid clamping. This flexible clamping method is particularly suitable for scenarios where the surface quality of the workpiece is required to be high in precision machining. Since the elastic expansion piece 5 has elastic deformation capacity, it can adapt to slight changes in the size and shape of the workpiece, ensuring that the clamping assembly can firmly clamp workpieces of different shapes and sizes, improving the versatility and adaptability of the clamp. In addition, the compression amount of the elastic expansion piece 5 is proportional to the clamping force, and the deformation amount can be monitored in real time by the pressure sensor 17. When the clamping force reaches the preset value, the electric push rod 3 stops moving, thereby achieving precise control of the clamping force and avoiding the influence of excessive or insufficient clamping force on the machining quality of the workpiece.

[0040] The working principle of the above embodiment is as follows:

[0041] Start the electric push rod 3, the movable rod of the electric push rod 3 pushes the connecting plate 4 to move forward, the connecting plate 4 drives the elastic expansion piece 5 and the fixed plate 6 to move, the fixed plate 6 drives the clamping plate 8 to move towards the workpiece through the threaded connecting shaft 7, when the clamping plate 8 contacts the workpiece, the elastic expansion piece 5 starts to compress, at this time the fixed plate 6 is in contact with the pressure sensor 17, the pressure sensor 17 in turn monitors the size of the clamping force in real time, when the clamping force reaches the preset value, the electric push rod 3 stops moving, the clamping plate 8 firmly clamps the workpiece through the rubber pad;

[0042] Start the motor 9, the output shaft of the motor 9 drives the rotating rod 10 to rotate, the rotating rod 10 drives the drive gear 11 to rotate, the drive gear 11 is engaged with the toothed plate 12, the toothed plate 12 drives the mounting plate 2 to slide on the support 1, the mounting plate 2 slides in the sliding groove through the sliding piece, and cooperates with the guide rod 14 and the ball 16 to ensure the stability and accuracy of the mounting plate 2 during movement. When the mounting plate 2 moves to the desired position, the motor 9 stops running, and the position adjustment of the clamping assembly is completed.

[0043] The installation method, connection method or setting method disclosed in the embodiment are all common mechanical connection methods, as long as they can achieve the beneficial effects. In addition, the electrical components appearing in the embodiment are electrically connected with the master controller and the power supply. The master controller can be a conventional known device such as a computer that plays a control role. A person skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technology also belongs to the common knowledge in the art. Therefore, the specific structure and working principle of the embodiment will not be described in detail.

[0044] It should be noted that, in this article, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0045] It should be noted that, in this article, the relationship 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 the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0046] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A quick-clamping fixture for precision machining, comprising a support (1) and a mounting plate (2), characterized in that: The top of the mounting plate (2) is provided with a clamping assembly for clamping the workpiece; The clamping assembly includes four electric push rods (3) fixedly connected to the top of the mounting plate (2), a connecting plate (4) fixedly connected to the movable rod of the electric push rod (3), an elastic telescopic member (5) fixedly connected to the other side of the connecting plate (4), a fixing plate (6) fixedly connected to the other end of the elastic telescopic member (5), a threaded connecting shaft (7) fixedly connected to the other side of the fixing plate (6), and a clamping plate (8) threadedly connected to the outside of the threaded connecting shaft (7). The back of the bracket (1) is provided with an adjustment component for adjusting the position of the clamping component.

2. The quick-clamping fixture for precision machining according to claim 1, characterized in that: The adjustment assembly includes a motor (9) fixedly connected to the back of the bracket (1), a rotating rod (10) fixedly connected to the output shaft of the motor (9), a drive gear (11) fixedly connected to one end of the front of the rotating rod (10), and a toothed plate (12) meshing with the top of the drive gear (11). The toothed plate (12) is fixedly connected to the bottom of the mounting plate (2).

3. The quick-clamping fixture for precision machining according to claim 1, characterized in that: The bracket (1) has a rotating hole on the rear side that matches the rotating rod (10), and a bushing is provided on the inner side of the rotating hole. A sliding plate is fixedly connected to the back of the mounting plate (2), and a sliding groove that matches the sliding plate is provided on the rear side of the bracket (1).

4. The quick-clamping fixture for precision machining according to claim 1, characterized in that: The front of the mounting plate (2) is fixedly connected to two reinforcing blocks (13). The inner side of the reinforcing block (13) is slidably connected to a guide rod (14), and the bottom of the reinforcing block (13) is fixedly connected to a support block (15). The bottom of the support block (15) is provided with a ball groove, and a ball (16) rolls inside the ball groove.

5. A quick-clamping fixture for precision machining according to claim 4, characterized in that: Both ends of the guide rod (14) are bent backward and fixedly connected to the inner rear side wall of the bracket (1).

6. A quick-clamping fixture for precision machining according to claim 1, characterized in that: The four electric push rods (3) are respectively arranged on the left side, right side, front side and back side of the top of the mounting plate (2).

7. A quick-clamping fixture for precision machining according to claim 1, characterized in that: A pressure sensor (17) is fixedly connected to one side of the connecting plate (4).

8. A quick-clamping fixture for precision machining according to claim 1, characterized in that: The clamping plate (8) is composed of a threaded sleeve (801) and a round plate (802), and a rubber pad is fixedly connected to the clamping surface of the round plate (802).

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