Pressing plate grabbing clamp for numerical control grinding machine

Abstract

The utility model relates to the technical field of clamps, in particular to a pressing plate grabbing clamp for a numerical control grinding machine. The device comprises a fixed base, a supporting plate is arranged on one side of the fixed base, a pressing plate assembly is arranged at the top of the supporting plate, a transferring and grabbing assembly is movably arranged in the fixed base, a driving assembly is arranged on one side of the fixed base, and the driving assembly is connected with the transferring and grabbing assembly. Compared with a traditional manual clamping mode, the clamping time is greatly shortened, consumed time of auxiliary procedures is reduced, the effective machining time of grinding machine equipment can be prolonged, meanwhile, reworking caused by manual operation errors is avoided, and the overall machining efficiency is remarkably improved. Through automatic system control, positioning and fixing of a workpiece are kept consistent during clamping each time, the quality difference between products in batches is effectively reduced, the high-precision and large-batch production requirements are met, and especially in the fields of aerospace, precise instruments and the like with extremely high machining precision requirements, the product percent of pass and the yield can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a gripping clamp for a CNC grinding machine. Background Technology

[0002] In the field of CNC grinding, the clamping accuracy and efficiency of workpieces directly affect machining quality and production efficiency. Traditional manual clamping methods are cumbersome, inefficient, and difficult to guarantee positioning accuracy, which can easily lead to poor workpiece consistency and low yield, failing to meet the high-precision, high-volume production needs of modern manufacturing. Utility Model Content

[0003] The purpose of this invention is to provide a gripping clamp for a CNC grinding machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution, which includes a fixed base, a support plate on one side of the fixed base, a pressure plate assembly on the top of the support plate, a transfer gripping assembly movably disposed inside the fixed base, and a drive assembly on one side of the fixed base, the drive assembly being connected to the transfer gripping assembly.

[0005] As a preferred embodiment of this utility model, the transfer gripping assembly includes a bottom shell movably disposed within a fixed base. A rotating tube is movably disposed on the bottom shell via a bearing seat. A mounting shell is disposed on the top of the rotating tube. A mounting frame is disposed on the top of the mounting shell. A lead screw is movably disposed within the mounting shell via a pair of bearing seats. A second motor is disposed on the top of the mounting frame. The transmission end of the second motor is connected to one end of the lead screw via a coupling. A drive block is disposed within the mounting shell. A nut is disposed within the drive block. The nut is threaded onto the lead screw. A gripper cylinder is disposed on the front side of the drive block.

[0006] The rotating tube is equipped with a gear one at one end inside the bottom shell. A motor one is also provided on the bottom shell. A gear two is provided on the transmission end of the motor one. The gear two is meshed with the gear one.

[0007] As a preferred embodiment of this utility model, a pair of sliding grooves are provided in the fixed base, and a slider is provided at the bottom of the bottom shell corresponding to the position of the sliding groove, and the slider is disposed in the sliding groove.

[0008] As a preferred embodiment of the present invention, the support plate is provided with a pressing groove, and the pressing plate assembly includes a first telescopic cylinder disposed on the top of the support plate. The telescopic rod of the first telescopic cylinder passes through the support plate and is placed in the pressing groove. A pressing plate is disposed on the top of the telescopic rod, and a rubber anti-slip texture is disposed on the bottom of the pressing plate.

[0009] As a preferred embodiment of this utility model, the drive assembly includes a second telescopic cylinder disposed on one side of the fixed base. The telescopic rod of the second telescopic cylinder passes through the fixed base, and a connecting plate is disposed on the top of the telescopic rod. The connecting plate is fixed to one side of the bottom shell by several bolts.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0011] Compared with the traditional manual clamping method, this utility model significantly shortens the clamping time and reduces the time spent on auxiliary processes, thereby increasing the effective processing time of the grinding machine and avoiding rework caused by human operation errors, thus significantly improving the overall processing efficiency.

[0012] This invention utilizes an automated system to ensure consistent workpiece positioning and fixation during each clamping process, effectively reducing quality variations between batches and meeting the demands of high-precision, mass production. It is particularly useful in fields with extremely high precision requirements, such as aerospace and precision instruments, significantly improving product qualification and yield rates. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the transfer and gripping component structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the transfer gripping component of this utility model after the bottom shell has been removed;

[0016] Figure 4 This is a schematic diagram of the fixed base structure of this utility model.

[0017] Reference numerals in the attached drawings: fixed base 1, support plate 10, pressing groove 11, sliding groove 12, pressure plate assembly 2, first telescopic cylinder 20, pressing plate 21, rubber anti-slip texture 22, transfer gripping assembly 3, bottom shell 30, slider 31, mounting shell 32, rotating tube 33, bearing seat one 34, gear one 35, motor one 36, gear two 37, bearing seat two 38, lead screw 39, motor two 310, coupling 311, drive block 312, nut 313, gripper cylinder 314, mounting bracket 315, drive assembly 4, second telescopic cylinder 40, connecting plate 41, bolt 42. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0019] like Figures 1-4 As shown, the present invention proposes a gripping pressure plate fixture for a CNC grinding machine, which includes a fixed base 1, the top plane of which is used to install other components, and a pair of parallel sliding grooves 12 are provided inside to limit the movement trajectory of the bottom shell 30. A support plate 10 is vertically welded to one side of the fixed base 1, and a rectangular pressing groove 11 is provided in the middle of the support plate 10.

[0020] The transfer gripping assembly 3 consists of a bottom shell 30, a rotating tube 33, a mounting shell 32, a lead screw 39, a transmission mechanism, and a gripper cylinder 314. The bottom shell 30 has symmetrically arranged sliders 31 adapted to the sliding groove 12 on both sides. The sliders 31 are embedded in the sliding groove 12 of the fixed base 1 to achieve stable linear sliding. The rotating tube 33 is mounted on the upper part of the bottom shell 30 via a bearing seat 34. The mounting shell 32 is welded to the top of the rotating tube 33 to form a stable bearing platform. The lead screw 39 is vertically mounted inside the mounting shell 32 via a pair of bearing seats 38. A mounting bracket 315 is fixed to the top of the mounting shell 32 and a motor 310 is mounted on it. The output shaft of the motor 310 is rigidly connected to one end of the lead screw 39 via a coupling 311 to achieve power transmission.

[0021] The drive block 312 is internally fitted with a screw nut 313, which forms a threaded transmission pair with the lead screw 39. The front of the drive block 312 is fixed with a gripper cylinder 314, which moves axially along the lead screw 39 with the drive block 312. In addition, the bottom of the rotating tube 33 extends into the bottom shell 30 and is fixedly installed with a gear 35. The motor 36 is installed on the top of the bottom shell 30, and its output shaft is equipped with a gear 37. The gear 37 meshes with the gear 35 through a standard module gear to achieve precise rotation control of the rotating tube 33.

[0022] The first telescopic cylinder 20 is vertically installed at the center of the top of the support plate 10. Its telescopic rod passes through the through hole reserved in the support plate 10 and extends into the pressing groove 11. The top of the telescopic rod is connected to the pressing plate 21. The bottom surface of the pressing plate 21 is provided with rubber anti-slip texture 22 to increase the friction with the workpiece surface.

[0023] The drive assembly 4 is centered on the second telescopic cylinder 40. The second telescopic cylinder 40 is fixed to the outer wall of the fixed base 1. Its telescopic rod passes through the guide hole reserved in the side wall of the fixed base 1. The top of the telescopic rod is welded with a connecting plate 41. The connecting plate 41 is fastened to the right side wall of the bottom shell 30 by four bolts 42 to form a rigid connection structure.

[0024] When in use, first start the gripper cylinder 314 to stably clamp the workpiece, while ensuring that the surface to be ground faces outward. Then, the control system starts the motor 310 to drive the lead screw 39 to rotate. The lead screw 39 and the lead nut 313 are threadedly driven, which drives the drive block 312 to rise. When the top of the workpiece is consistent with the height of the holding groove 11, the motor 310 stops automatically.

[0025] Subsequently, the controller triggers motor 36, which drives gear 37 to drive gear 35 to rotate. Gear 35 is coaxially fixed with the rotating tube 33, driving the rotating tube 33 to rotate precisely 180°. The mounting shell 32 rotates synchronously with the rotating tube 33, transferring the workpiece to the corresponding position of the pressing groove 11.

[0026] Then, after the second telescopic cylinder 40 is started, the extension length of the telescopic rod is precisely controlled according to the preset workpiece size parameters, pushing the bottom shell 30 to move forward on the slide rail of the fixed base 1, so that the workpiece is completely entered into the holding groove 11, ensuring that the gripper is located directly below the holding plate 21. Then, the motor 36 is started again, driving the lead screw 39 to rotate in the opposite direction, causing the drive block 312 to descend, and the workpiece is smoothly placed on the bottom surface of the holding groove 11 with the gripper cylinder 314.

[0027] Finally, the first telescopic cylinder 20 is activated, driving the pressure plate 21 to press down and firmly press the workpiece into the pressure groove 11. After the workpiece is fixed, the gripper cylinder 314 is released, and each actuator is reset according to the program, and the grinding process can begin.

[0028] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A kind of numerical control grinding machine is grabbed and is pressed plate clamp, it includes fixed base (1), the fixed base (1) one side is provided with bracing plate (10), it is characterized by: The support plate (10) is provided with a pressing plate assembly (2) on the top, the fixed base (1) is movably provided with a transfer grabbing assembly (3), one side of the fixed base (1) is provided with a driving assembly (4), and the driving assembly (4) is connected with the transfer grabbing assembly (3).

2. The grabbing press plate clamp for a CNC grinding machine according to claim 1, characterized in that: The transfer grabbing assembly (3) comprises a bottom shell (30) movably arranged in the fixed base (1), a rotating pipe (33) movably arranged on the bottom shell (30) through a bearing seat one (34), an installation shell (32) arranged on the top of the rotating pipe (33), a mounting rack (315) arranged on the top of the installation shell (32), a lead screw (39) movably arranged in the installation shell (32) through a pair of bearing seat two (38), a motor two (310) arranged on the top of the mounting rack (315), a transmission end of the motor two (310) connected with one end of the lead screw (39) through a shaft coupling (311), a driving block (312) arranged in the installation shell (32), a nut (313) arranged in the driving block (312), the nut (313) is screw-threaded on the lead screw (39), and a clamping jaw air cylinder (314) is arranged on the front of the driving block (312). One end of the rotating pipe (33) located in the bottom shell (30) is provided with a gear one (35), the bottom shell (30) is further provided with a motor one (36), a gear two (37) is arranged on the transmission end of the motor one (36), and the gear two (37) is in meshing connection with the gear one (35).

3. The grabbing press plate clamp for CNC grinding machine according to claim 2, characterized in that: A pair of sliding grooves (12) are formed in the fixed base (1), and sliding blocks (31) are arranged on the bottom of the bottom shell (30) corresponding to the positions of the sliding grooves (12), and the sliding blocks (31) are arranged in the sliding grooves (12).

4. The grabbing press plate clamp for CNC grinding machine according to claim 1, characterized in that: The support plate (10) is provided with a pressing plate assembly (2) on the top, the fixed base (1) is movably provided with a transfer grabbing assembly (3), one side of the fixed base (1) is provided with a driving assembly (4), and the driving assembly (4) is connected with the transfer grabbing assembly (3).

5. The grabbing press plate clamp for CNC grinding machine according to claim 2, characterized in that: The driving assembly (4) comprises a second telescopic cylinder (40) arranged on one side of the fixed base (1), a telescopic rod of the second telescopic cylinder (40) penetrates through the fixed base (1), a connecting plate (41) is arranged on the top of the telescopic rod, and the connecting plate (41) is fixed to one side of the bottom shell (30) through a plurality of bolts (42).

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