Numerical control machining clamp

Abstract

The utility model is applicable to the field of machining, and provides a numerical control machining clamp, which is provided with a bottom plate, a fixing frame, a rotating shaft and a driving module, the driving module can accurately drive the rotating shaft to intermittently rotate during operation, and a rotor connected with the rotating shaft synchronously moves along with the rotation of the rotating shaft, so that the rotating shaft is prevented from rotating. Due to the fact that the installation bases are fixed to the side wall of the rotor in an array mode, in the process, the clamping plates, located in different directions, of the rotor can be sequentially rotated to the center positions of the installation plates, the automatic switching function of the clamping plates is achieved, and compared with the mode that the clamping plates are manually replaced to adapt to clamping operation of different workpieces in the prior art, the operation efficiency is improved. According to the design, the participation degree of manual operation is greatly reduced, an operator does not need to consume a large amount of time and energy to carry out tedious manual disassembly and assembly work, replacement errors caused by human factors are effectively avoided, and the clamping plate replacement efficiency and the machining precision are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, and specifically relates to a numerical control machining clamp. BACKGROUND

[0002] In the field of modern machining, especially in the numerical control machining environment, the demand for high precision and high efficiency machining is increasing. As a key device for fixing workpieces during the machining process, the performance and operation convenience of the mechanical clamp directly affect the efficiency and quality of the entire machining process.

[0003] For example, the precision machining mechanical clamp disclosed in patent CN 222155195 U realizes the replaceable function of the clamping plate to a certain extent through the design of its clamping assembly, providing a certain flexibility for the machining of different workpieces. However, when replacing the clamping plate, although the clamp has been improved compared to some traditional clamps, there is still a significant efficiency bottleneck:

[0004] The replacement process requires manual multi-step operation by the worker. First, the electric telescopic rod is controlled to retract through the control panel to separate the upper and lower mounting blocks. Then, the worker needs to manually pull the pull ring to release the clamping and fixing of the lower clamping plate and the upper clamping plate. Finally, the clamping plate can be removed from the support plate. This manual disassembly and assembly method relies heavily on manual operation, not only consuming a lot of manpower and time, but also in large-scale production or high-precision numerical control machining tasks with frequent clamping plate replacement, human factors can cause operation errors, such as clamping plate disassembly not smooth, mounting block separation not complete, etc., thereby affecting the continuity and stability of the entire machining process.

[0005] In view of the defects that the clamping plate replacement in existing similar patents still needs manual disassembly and has low efficiency, it is urgent to develop a new numerical control machining clamp that can realize quick and automatic replacement of the clamping plate, reduce manual intervention, and improve the replacement efficiency and precision, to meet the development trend of modern numerical control machining technology. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a numerical control machining clamp to solve the problems raised in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0008] The utility model provides a numerical control mechanical processing clamp, including mounting plate and the clamping mechanism of setting on the mounting plate, the clamping mechanism includes the clamping unit of symmetric activity setting on the mounting plate and the adjusting unit of adjusting the interval between two clamping units, the clamping unit includes the bottom plate, the fixed frame of fixed installation on the bottom plate, the rotating shaft of rotation installation in the fixed frame and the drive module of driving rotating shaft rotation, the fixed frame is U type structure, the rotating shaft is fixedly installed with rotor, and the lateral wall array of rotor is fixedly installed with a plurality of mounting seat, and the lateral surface of mounting seat is detachably installed with the clamping plate, and the drive module is used for providing power for the intermittent rotation of rotating shaft.

[0009] As a further scheme of the utility model: the drive module includes shell, driving wheel, driven wheel and brake wheel, the shell is fixedly installed on the fixed frame, the driving wheel and the driven wheel are rotatably installed in the shell, and the eccentric position of driving wheel is fixedly installed with the lever, the driven wheel is coaxially fixedly installed on the rotating shaft, a plurality of lever slots are formed in the driven wheel, the brake wheel is coaxially fixedly installed on the driving wheel, and a notch is formed in the brake wheel, and an arc-shaped groove is further formed between the adjacent two lever slots in the driven wheel, and the arc-shaped groove is intermittently matched with the brake wheel.

[0010] As a further scheme of the utility model: the shell is further fixedly installed with the first knob, the first knob is coaxially fixedly adjacent to the driving wheel, and is used for controlling the rotation of the driving wheel.

[0011] As a further scheme of the utility model: the adjusting unit includes the bidirectional screw rod of rotation setting and the threaded sleeve of symmetric installation on the two threaded parts of bidirectional screw rod, the strip slot for the rotation of bidirectional screw rod is formed in the mounting plate, the threaded sleeve is slidably arranged in the strip slot, and the second knob connected with bidirectional screw rod is further arranged on the end surface of mounting plate.

[0012] As a further scheme of the utility model: the slide groove is further symmetrically formed on the both sides of strip slot in the mounting plate, and the slide block slidably matched with the slide groove is fixedly arranged on the bottom surface of mounting plate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The utility model discloses a bottom plate, fixed frame, pivot and drive module are set, and drive module can drive the intermittent rotation of pivot accurately when running, with the rotation of pivot, the rotor connected therewith also synchronously moves, since the rotor side wall array fixed has a plurality of mounting seat, and every mounting seat side can detachably install the clamping plate, so in this process, can rotate the clamping plate of rotor in different directions to the center position of mounting plate in proper order, to realize the automatic switching function of clamping plate, compared with the mode of relying on manual clamping plate replacement to adapt to different workpiece clamping operation in traditional technology, the design has greatly reduced the participation of manual operation, and the operator does not need to spend a lot of time and energy to carry out the tedious manual dismounting and mounting work, effectively avoids the replacement error caused by human factors, significantly improves the efficiency and processing accuracy of clamping plate replacement, thereby providing powerful guarantee for efficient and accurate production in numerical control machining process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of numerical control machining fixture's overall structure schematic diagram;

[0016] Figure 2 It is a kind of numerical control machining fixture's plan view;

[0017] Figure 3 It is a kind of numerical control machining fixture's clamping unit's enlarged view;

[0018] Figure 4 It is Figure 3 The internal structure schematic diagram of fixed frame in it;

[0019] Figure 5 It is Figure 3 The internal structure schematic diagram of shell in it;

[0020] In the drawing: 1, mounting plate;2, bottom plate;3, fixed frame;4, pivot;5, rotor;6, mounting seat;7, clamping plate;8, shell;9, driving wheel;10, driven wheel;11, brake wheel;12, push rod;13, push groove;14, notch;15, arc slot;16, first knob;17, bidirectional screw;18, second knob;19, strip slot;20, sliding slot;21, sliding block. DETAILED DESCRIPTION

[0021] The technical scheme of the patent will be further described in detail in combination with specific implementation manners.

[0022] Example 1

[0023] Please refer to Figures 1-5The utility model provides a numerical control mechanical processing clamp, including mounting plate 1 and the clamping mechanism of setting on mounting plate 1, clamping mechanism includes the clamping unit of symmetric activity setting on mounting plate 1 and the adjusting unit of the interval between two clamping units, clamping unit includes bottom plate 2, fixedly installed fixed frame 3 on bottom plate 2, rotates and installs the rotating shaft 4 in fixed frame 3 and drives the drive module of rotating shaft 4 rotation, fixed frame 3 is U type structure, rotating shaft 4 is fixedly installed with rotor 5, the side wall array of rotor 5 is fixedly installed with a plurality of mounting seat 6, and the side of mounting seat 6 can detachably installs the clamping plate 7, drive module is used for providing power for the intermittent rotation of rotating shaft 4, by setting bottom plate 2, fixed frame 3, rotating shaft 4 and drive module, drive module can accurately drive rotating shaft 4 to carry out intermittent rotation when operating, with the rotation of rotating shaft 4, the rotor 5 connected therewith also synchronously moves, since the side wall array of rotor 5 is fixed with a plurality of mounting seat 6, and every mounting seat 6 side can detachably install clamping plate 7, so in this process, the clamping plate 7 of rotor 5 in different directions can be rotated to the center position of mounting plate 1 in turn, to realize the automatic switching function of clamping plate 7, compared with the mode of relying on manual clamping plate 7 replacement to adapt to different workpiece clamping operation in traditional technology, the design greatly reduces the participation of manual operation, and the operator does not need to spend a lot of time and energy to carry out tedious manual disassembly and installation work, effectively avoids the replacement error caused by human factors, significantly improves the efficiency and processing precision of clamping plate 7 replacement, thereby providing strong guarantee for efficient and accurate production in numerical control mechanical processing process.

[0024] The driving module comprises a housing 8, a driving wheel 9, a driven wheel 10 and a brake wheel 11, the housing 8 is fixedly installed on the fixed frame 3, the driving wheel 9 and the driven wheel 10 are both rotatably installed in the housing 8, and the eccentric position of the driving wheel 9 is fixedly installed with a lever 12, the driven wheel 10 is coaxially fixedly installed on the rotating shaft 4, a plurality of lever grooves 13 with the same number as the lever 12 are formed on the driven wheel 10, the brake wheel 11 is coaxially fixedly installed on the driving wheel 9, and a notch 14 is formed on the brake wheel 11, and an arc-shaped groove 15 is further formed between the adjacent two lever grooves 13 on the driven wheel 10, the arc-shaped groove 15 is intermittently matched with the brake wheel 11, and the housing 8 is further fixedly installed with a first knob 16, the first knob 16 is coaxially fixedly adjacent to the driving wheel 9 and is used for controlling the rotation of the driving wheel 9, the driving module realizes the intermittent rotation function of the rotating shaft 4 through a simple mechanical structure, the operator can conveniently manually control the rotation of the driving wheel 9 through the first knob 16, and then accurately control the rotation angle and timing of the driven wheel 10 and the rotating shaft 4, so that the accurate operation of the position switching of the clamping plate 7 can be realized without a complex electric control system, the equipment cost and control difficulty are reduced, meanwhile, the intermittent matching of the brake wheel 11 and the arc-shaped groove 15 can effectively ensure the stability of the rotating shaft 4 during the stop, so that the position deviation of the clamping plate 7 caused by inertia or other external force is avoided, and the machining precision is further ensured.

[0025] Embodiment 2

[0026] This embodiment details the adjusting unit based on the embodiment 1, in particular:

[0027] Please refer to Figure 2 , the adjusting unit comprises a rotatingly arranged bidirectional screw rod 17 and a threaded sleeve (not shown in the figure) symmetrically installed on the two threaded parts of the bidirectional screw rod 17, the mounting plate 1 is provided with a strip-shaped groove 19 for the rotation of the bidirectional screw rod 17, and the threaded sleeve is slidingly arranged in the strip-shaped groove 19, and the end face of the mounting plate 1 is further provided with a second knob 18 connected with the bidirectional screw rod 17, the combination of the bidirectional screw rod 17 and the threaded sleeve realizes flexible and accurate adjustment of the distance between the two clamping units, which can adapt to the clamping requirements of workpieces of different sizes, and the strip-shaped groove 19 provides space for the rotation of the bidirectional screw rod 17 and limits the movement direction of the threaded sleeve, so that the adjustment process is more stable and reliable.

[0028] In addition, symmetrically arranged sliding grooves 20 are further provided on both sides of the strip-shaped groove 19 on the mounting plate 1, and the bottom surface of the mounting plate 1 is fixedly provided with sliding blocks 21 slidingly matched with the sliding grooves 20, and the structure of the sliding grooves 20 and the sliding blocks 21 further enhances the stability of the mounting plate 1 and other components when they are connected or moved, prevents shaking or deviation during the adjustment or machining process, ensures the accuracy of clamping and machining, and improves the applicability and universality of the whole clamp in different workpiece machining scenarios.

[0029] Working principle: when working, firstly, according to the size of the workpiece, the two-way screw rod 17 is rotated by rotating the second knob 18, the threaded shaft sleeve is slid in the strip-shaped groove 19, so as to adjust the distance between the two clamping units, so that the clamp adapts to the size of the workpiece and places the workpiece in the appropriate position. Then, according to the processing requirement, the first knob 16 is rotated, the driving wheel 9 is rotated, the eccentricity of the driving wheel 9 drives the driving groove 13 of the driven wheel 10, the driven wheel 10 and the coaxial rotating shaft 4 are rotated by a certain angle, the intermittent cooperation between the brake wheel 11 and the arc-shaped groove 15 controls the stop of the rotating shaft 4, the position of the clamping plate 7 is switched, the operation of different parts of the workpiece or different processing technology is completed. When it is necessary to replace the clamping plate 7, the old clamping plate 7 can be conveniently disassembled from the mounting seat 6, and the new clamping plate 7 is replaced, so as to meet the requirements of the next processing task. Through the cooperation of each part, the numerical control machining clamp realizes efficient, accurate and flexible operation in clamping, machining and clamping plate 7 replacement.

[0030] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0031] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A numerically controlled mechanical processing jig comprising a mounting plate (1) and a clamping mechanism provided on the mounting plate (1), characterized in that, The clamping mechanism comprises clamping units symmetrically movably arranged on the mounting plate (1) and an adjusting unit for adjusting the distance between the two clamping units, the clamping unit comprises a bottom plate (2), a fixed frame (3) fixedly arranged on the bottom plate (2), a rotating shaft (4) rotatably arranged in the fixed frame (3), and a driving module for driving the rotating shaft (4) to rotate, the fixed frame (3) is in U-shaped structure, the rotating shaft (4) is fixedly arranged with a rotor (5), a plurality of mounting seats (6) are fixedly arranged on the side wall of the rotor (5) in array, and a clamping plate (7) is detachably arranged on the side of the mounting seat (6), and the driving module is used for intermittently providing power for the rotation of the rotating shaft (4).

2. The numerically controlled mechanical processing fixture according to claim 1, characterized in that, The driving module comprises a housing (8), a driving wheel (9), a driven wheel (10) and a brake wheel (11), the housing (8) is fixedly arranged on the fixed frame (3), the driving wheel (9) and the driven wheel (10) are rotatably arranged in the housing (8), the eccentric position of the driving wheel (9) is fixedly arranged with a lever (12), the driven wheel (10) is coaxially fixedly arranged on the rotating shaft (4), a plurality of lever grooves (13) with the same number as the lever (12) are arranged on the driven wheel (10), the brake wheel (11) is coaxially fixedly arranged on the driving wheel (9), and a notch (14) is arranged on the brake wheel (11), and an arc-shaped groove (15) is arranged between the adjacent two lever grooves (13) on the driven wheel (10), and the arc-shaped groove (15) is intermittently matched with the brake wheel (11).

3. The numerically controlled mechanical processing fixture according to claim 2, characterized in that, The housing (8) is further fixedly arranged with a first knob (16) coaxially adjacent to the driving wheel (9) for controlling the rotation of the driving wheel (9).

4. The numerically controlled mechanical processing fixture according to claim 1, characterized in that, The adjusting unit comprises a bidirectional screw rod (17) rotatably arranged and a threaded sleeve symmetrically arranged on the two threaded parts of the bidirectional screw rod (17), the mounting plate (1) is arranged with a strip-shaped groove (19) for the rotation of the bidirectional screw rod (17), the threaded sleeve is slidably arranged in the strip-shaped groove (19), and the end surface of the mounting plate (1) is further provided with a second knob (18) connected with the bidirectional screw rod (17).

5. The numerically controlled mechanical processing fixture according to claim 4, characterized in that, The mounting plate (1) is further symmetrically arranged with a sliding groove (20) on both sides of the strip-shaped groove (19), and the bottom surface of the mounting plate (1) is fixedly arranged with a sliding block (21) slidably matched with the sliding groove (20).

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