Workpiece clamping device of numerical control machine tool workbench

Abstract

The utility model relates to the technical field of workpiece clamping, in particular to a workpiece clamping device of a numerical control machine tool workbench, which comprises a workpiece table, a cross-shaped base is fixedly connected to the bottom end of the workpiece table, electric push rods are arranged on four sides of the side face of the cross-shaped base, and a cross-shaped sliding groove is formed in the surface of the cross-shaped base. A first annular base is fixedly connected to the surface of the workpiece table, a second annular base is fixedly connected to the surface of the first annular base, and winding pipes are fixedly connected to the two sides of the first annular base and the two sides of the second annular base. Through the arrangement of the workpiece table, the cross-shaped base, the electric push rod, the cross-shaped sliding groove, the limiting sliding groove, the damping rubber strip, the fastening ejecting strip and the attaching pad, the equipment can conduct stable all-dimensional limiting and clamping operation on a workpiece on a numerical control machine tool workbench; a worker firstly places a workpiece needing to be machined on the workbench of the numerical control machine tool in the center of the interior of the workpiece table.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping, in particular to a workpiece clamping device for a worktable of a numerical control machine tool. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool. It is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.

[0003] For example, the patent document with the announcement number CN 212683190 U discloses a workpiece clamping device for a CNC machine tool, comprising a base, a fixed body fixedly installed on the top of the base, a second electric telescopic rod fixedly installed at the center of the fixed body, a baffle fixedly installed in front of the second electric telescopic rod, a workpiece mounting table fixedly installed at the center of the base, a left mounting block fixedly installed at the top left side of the fixed body, a first electric telescopic rod fixedly installed on the left side of the fixed plate, a fastening nut matched with the bottom of the fastening bolt, and an adjusting hand wheel installed at the top of the fastening bolt. In this CNC machine tool workpiece clamping device, the telescopic mechanism is electrically controlled, and the telescopic rod has a long length, which can effectively clamp the workpiece when placing the workpiece, and the clamping device has a wide range of adaptability, and can adapt to workpieces of various sizes and types, so there is no need to replace the clamping body during production and processing.

[0004] However, during the actual CNC machine tool processing, this structure can often only perform simple clamping and fixing operations on both sides of the workpiece of the CNC machine tool worktable, and cannot perform more comprehensive limiting and tightening operations around the workpiece. At the same time, the equipment cannot perform further limiting and tightening operations on the clamped workpiece. In the subsequent processing, it is easy to be affected by the force generated by the processing, resulting in the problem of workpiece deviation, which cannot meet daily use needs. Therefore, it is urgent to design a workpiece clamping device for the CNC machine tool worktable to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a workpiece clamping device for a CNC machine tool worktable, so as to solve the problem that the existing structure proposed in the above background technology can often only perform simple clamping and fixing operations on both sides of the workpiece of the CNC machine tool worktable during actual CNC machine tool processing, and cannot perform more comprehensive limiting and tightening operations around the workpiece. At the same time, the equipment cannot perform further limiting and tightening operations on the clamped workpiece. In the subsequent processing process, it is easy to be affected by the force generated by the processing, resulting in the problem of workpiece deviation, and cannot meet the daily use needs.

[0006] To achieve the above object, the utility model provides the following technical solution: a workpiece clamping device for a CNC machine tool worktable, comprising a workpiece table, the bottom end of the workpiece table is fixedly connected to a cross base, four sides of the side of the cross base are provided with electric push rods, and the surface of the cross base is provided with a cross slide groove;

[0007] A first annular seat, the surface of the workpiece table is fixedly connected to the first annular seat, the surface of the first annular seat is fixedly connected to the second annular seat, and both sides of the first annular seat and the second annular seat are fixedly connected to a winding tube.

[0008] Preferably, a winding motor is provided at the top end of the winding tube, and receiving grooves are provided on the inner walls of the first annular seat and the second annular seat.

[0009] Preferably, a tightening hoop cover is movably connected inside the storage groove, and an inner wall of the tightening hoop cover is provided with a fitting inner strip.

[0010] Preferably, the tightening hoop cover is adapted to the interior of the reel tube.

[0011] Preferably, a limiting slide groove is provided on the inner wall of the workpiece platform, and a damping rubber strip is provided on the inner wall of the limiting slide groove.

[0012] Preferably, the cross slide is movably connected inside with a fixing top strip, and the inner wall of the fixing top strip is provided with a fitting pad.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The workpiece clamping device of the CNC machine tool worktable can enable the equipment to perform stable all-round limit clamping operations on the workpiece on the CNC machine tool worktable through the workpiece table, cross base, electric push rod, cross slide, limit slide, damping rubber strip, fixing top strip and fitting pad. In actual use, the staff first places the workpiece to be processed on the CNC machine tool worktable at the center inside the workpiece table, and then starts the four groups of electric push rods on the side of the cross base, respectively driving the fixing top strip at one end to perform adaptive pushing operations along the cross slide on the surface of the electric push rod toward the center, and cooperates with the fitting pad on the side of the fixing top strip to perform adaptive fitting and limiting operations on the four sides of the workpiece, so as to quickly position, lock and fix the workpiece in the center of the workpiece table. At the same time, the four groups of fixing top strips can perform limit sliding along the limit slide inside the workpiece table, and the limit slide on the inner wall of the damping rubber strip performs the damping protection operation of the fixing top strip, so as to ensure the firmness when adjusting, which reflects the comprehensiveness of the equipment design.

[0015] The workpiece clamping device of the CNC machine tool worktable further improves the overall use effect of the equipment by arranging the workpiece table, the first annular seat, the second annular seat, the winding tube, the winding motor, the storage groove, the tightening hoop cover and the fitting inner strip. In daily use, after the workpiece processed by the CNC machine tool worktable inside the workpiece table is initially fixed by the fixing top strips on the four sides, the winding motors on the winding tubes on both sides of the first annular seat and the second annular seat can be started synchronously, and then the tightening hoop covers in the storage grooves on the inner walls of the first annular seat and the second annular seat can be adaptively wound up. The two sets of tightening hoop covers are pulled and wound up on both sides of the workpiece respectively, and then the fitting inner strips on the inner walls of the tightening hoop covers are adaptively tightened to the sides of the workpiece. The simultaneous force on both sides makes the workpiece more stable when it is subsequently subjected to the processing force of the CNC machine tool, which reflects the comprehensiveness of the equipment design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is an overall schematic diagram of the workpiece table structure of the utility model;

[0018] Figure 3 It is an overall schematic diagram of the cross base structure of the utility model;

[0019] Figure 4 It is an overall schematic diagram of the first annular seat and the second annular seat structure of the utility model.

[0020] In the figure: 1. workpiece table; 2. cross base; 3. electric push rod; 4. cross slide; 5. first annular seat; 6. second annular seat; 7. winding tube; 8. winding motor; 9. storage slot; 10. tightening hoop cover; 11. fitting inner strip; 12. limiting slide; 13. damping rubber strip; 14. fastening top strip; 15. fitting pad. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , an embodiment provided by the utility model:

[0023] A workpiece clamping device for a CNC machine tool workbench comprises a workpiece table 1, wherein the bottom end of the workpiece table 1 is fixedly connected to a cross base 2, electric push rods 3 are arranged on the four sides of the side of the cross base 2, a cross slide groove 4 is provided on the surface of the cross base 2, a limiting slide groove 12 is provided on the inner wall of the workpiece table 1, a damping rubber strip 13 is provided on the inner wall of the limiting slide groove 12, a fixing top strip 14 is movably connected inside the cross slide groove 4, and a fitting pad 15 is provided on the inner wall of the fixing top strip 14, and the four groups of electric push rods 3 on the side of the cross base 2 are started, and the fixing top strip 14 at one end is respectively driven to perform an adaptive pushing operation toward the center along the cross slide groove 4 on the surface of the electric push rod 3, and the fitting pad 15 on the side of the fixing top strip 14 cooperates to perform an adaptive fitting and limiting operation on the four sides of the workpiece.

[0024] The first annular seat 5 and the workpiece table 1 are fixedly connected to the surface of the first annular seat 5, and the second annular seat 6 is fixedly connected to the surface of the first annular seat 5. Winding tubes 7 are fixedly connected to both sides of the first annular seat 5 and the second annular seat 6, and a winding motor 8 is arranged at the top of the winding tube 7. The inner walls of the first annular seat 5 and the second annular seat 6 are provided with a receiving groove 9, and the interior of the receiving groove 9 is movably connected with a tightening hoop cover 10, and the inner wall of the tightening hoop cover 10 is provided with a fitting inner strip 11, and the tightening hoop cover 10 is adapted to the interior of the winding tube 7, and the winding motors 8 on the winding tubes 7 on both sides of the first annular seat 5 and the second annular seat 6 are started synchronously, and then the tightening hoop covers 10 in the receiving grooves 9 on the inner walls of the first annular seat 5 and the second annular seat 6 are adaptively wound, and the two sets of tightening hoop covers 10 are pulled and wound on both sides of the workpiece respectively.

[0025] Working principle: When in use, the user first places the workpiece to be processed on the CNC machine tool workbench at the center of the workpiece table 1, and then starts the four groups of electric push rods 3 on the side of the cross base 2, which respectively drive the fixing top strip 14 at one end to perform an adaptive pushing operation toward the center along the cross slide groove 4 on the surface of the electric push rod 3, and cooperate with the fitting pad 15 on the side of the fixing top strip 14 to perform an adaptive fitting and limiting operation on the four sides of the workpiece, so as to quickly position, lock and fix the workpiece in the center of the workpiece table 1. At the same time, the four groups of fixing top strips 14 can slide along the limiting slide groove 12 inside the workpiece table 1, and the limiting slide groove 12 on the inner wall of the damping rubber strip 13 performs damping protection for the fixing top strip 14. Operation to ensure firmness during adjustment. In daily use, when the workpiece processed by the CNC machine tool worktable inside the workpiece table 1 is initially fixed by the fixing top strips 14 on the four sides, the winding motor 8 on the winding tubes 7 on both sides of the first annular seat 5 and the second annular seat 6 can be started synchronously at this time, and then the tightening hoop cover 10 in the inner wall storage groove 9 of the first annular seat 5 and the second annular seat 6 is adaptively wound. The two sets of tightening hoop covers 10 are pulled and wound on both sides of the workpiece respectively, and then the fitting inner strip 11 of the inner wall of the tightening hoop cover 10 is adaptively tightened on the side of the workpiece. The two sides exert force at the same time to make the workpiece more stable when it is subsequently subjected to the processing force of the CNC machine tool. The above is the entire working principle of the utility model.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A workpiece clamping device for a CNC machine tool worktable, comprising a workpiece table (1), characterized in that: The bottom end of the workpiece platform (1) is fixedly connected to a cross base (2), four sides of the cross base (2) are provided with electric push rods (3), and the surface of the cross base (2) is provided with a cross slide groove (4); A first annular seat (5), the surface of the workpiece platform (1) is fixedly connected to the first annular seat (5), the surface of the first annular seat (5) is fixedly connected to the second annular seat (6), and both sides of the first annular seat (5) and the second annular seat (6) are fixedly connected to a winding tube (7).

2. The workpiece clamping device for a CNC machine tool workbench according to claim 1, characterized in that: A winding motor (8) is provided at the top end of the winding tube (7), and receiving grooves (9) are provided on the inner walls of the first annular seat (5) and the second annular seat (6).

3. The workpiece clamping device for a CNC machine tool workbench according to claim 2, characterized in that: The interior of the storage groove (9) is movably connected to a tightening hoop cover (10), and the inner wall of the tightening hoop cover (10) is provided with a fitting inner strip (11).

4. The workpiece clamping device for a CNC machine tool workbench according to claim 3, characterized in that: The tightening hoop cover (10) is adapted to the interior of the winding tube (7).

5. The workpiece clamping device for a CNC machine tool workbench according to claim 1, characterized in that: The inner wall of the workpiece platform (1) is provided with a limit sliding groove (12), and the inner wall of the limit sliding groove (12) is provided with a damping rubber strip (13).

6. The workpiece clamping device for a CNC machine tool workbench according to claim 1, characterized in that: The cross slide (4) is movably connected to a fixing top strip (14) inside, and a fitting pad (15) is provided on the inner wall of the fixing top strip (14).

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