CN221910883U - Workpiece clamping tool of numerical control machine tool - Google Patents

Abstract

The utility model discloses a workpiece clamping tool of a numerical control machine tool, which comprises a tool base, wherein an adjusting structure is arranged at the upper end of the tool base, the adjusting structure comprises a structural frame body, a two-way screw rod, a first bevel gear, a second bevel gear, a rotating shaft, an adjusting motor, an adjusting sliding block, an adjusting connecting rod and an adjusting bracket, a locking structure is arranged at one side of the adjusting structure, a fixed support column is arranged at the upper end of the tool base, a lifting sliding groove is formed in the inner side of the fixed support column, a movable support column is arranged in the inner side of the lifting sliding groove, a clamping platform is arranged at the upper end of the adjusting structure, a clamping structure is arranged at the upper end of the clamping platform, a clamping bracket is arranged in the inner side of the clamping structure, and a clamping block is arranged in the inner side of the fixing structure, and compared with the prior art, the workpiece clamping tool disclosed by the utility model has the advantages that: not only can the height of the clamping tool be adjusted, but also the clamping blocks can be replaced according to the type of the workpiece.

Description

A workpiece clamping tool for CNC machine tools

Technical Field

The utility model relates to the technical field of numerically controlled machine tools, in particular to a workpiece clamping tool for numerically controlled machine tools.

Background Art

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, and express them in coded numbers. The information carrier is input into the CNC device. After calculation and processing, the CNC device sends out various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing. When the CNC machine tool processes the parts, it usually needs to use clamping tooling to fix the workpiece.

The patent number CN219853388U in the prior art discloses a workpiece clamping tool for a CNC machine tool, including a processing table, a rotating structure is arranged on the top of the processing table, a clamping structure is fixedly connected to the movable end of the rotating structure, and the rotating structure includes a side frame, a mounting plate is fixedly installed at the opening of the inner cavity of the side frame, and a rotating sleeve is rotatably connected to the center of the mounting plate through a bearing. The movable clamping claw can be displaced by using the electric push rod inside the drive box, so that the clamping frame composed of the movable clamping claw and the fixed clamping claw can be adaptively adjusted according to the size of the workpiece to be clamped, and the rotating sleeve can drive the positioning pin to be plugged into the positioning holes at different angles, so that the workpiece after clamping can be rotated at an angle, and the workpiece can be flipped at different angles after being clamped, thereby significantly improving the processing efficiency of the workpiece.

However, the patents in the prior art have the following disadvantages:

(1) The prior art cannot adjust the height of the clamping tooling. When the operator is processing the workpiece, he cannot adjust the height of the workpiece according to his own height, which may be inconvenient for the operator to process the workpiece and reduce the efficiency of the processing work;

(2) The clamping claws of the prior art are fixedly connected to the tooling and cannot be replaced. The clamping blocks cannot be replaced according to the type of workpieces that need to be clamped. When clamping different types of workpieces, the workpieces may not be stably clamped, which affects subsequent processing work.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the above technical defects and provide a workpiece clamping fixture for a CNC machine tool, which can not only adjust the height of the clamping fixture, but also replace the clamping block according to the type of workpiece.

In order to solve the above problems, the technical solution of the utility model is as follows: a workpiece clamping fixture for a CNC machine tool, comprising a fixture base, an adjustment structure is arranged on the upper end of the fixture base, the adjustment structure comprises a structural frame, two ends of the inner side of the structural frame are provided with bidirectional screw rods, one end of the bidirectional screw rod is provided with a bevel gear 1, the outer side of the bevel gear 1 is provided with a matching bevel gear 2, the inner side of the bevel gear 2 is provided with a rotating shaft, one end of the rotating shaft is provided with an adjustment motor, two ends of the outer side of the bidirectional screw rod are provided with adjustment sliders, the inner side of the adjustment slider is provided with an adjustment connecting rod, and the outer side of the adjustment connecting rod is provided with an adjustment bracket, A locking structure is provided on one side of the adjustment structure, and the locking structure includes a structural support plate, an electric telescopic rod is provided on the inner side of the structural support plate, a locking block is provided at the lower end of the electric telescopic rod, and a matching locking slot is provided on the outer side of the locking block; a fixed pillar is provided on the upper end of the tooling base, a lifting slide groove is provided on the inner side of the fixed pillar, and a movable pillar is provided on the inner side of the lifting slide groove; a clamping platform is provided on the upper end of the adjustment structure, a clamping structure is provided on the upper end of the clamping platform, a clamping bracket is provided on the inner side of the clamping structure, a fixed structure is provided on the upper end of the clamping bracket, and a clamping block is provided on the inner side of the fixed structure.

Preferably, the clamping structure includes a screw bracket, a clamping screw is provided on the inner side of the screw bracket, a driven wheel is provided at one end of the clamping screw, a transmission belt is provided on the outer side of the driven wheel, a driving wheel is provided on the inner side of the transmission belt, an operating rod is provided at one end of the driving wheel, and a rod bracket is provided on the outer side of the operating rod.

Preferably, the fixed structure includes a structural bracket, a movable slide groove is opened on the inner side of the structural bracket, a limiting slide rod is provided on the inner side of the structural bracket, mounting plates are provided at both ends of the outer side of the limiting slide rod, a mounting spring is provided on one side of the mounting plate, a mounting block is provided on the other side of the mounting plate, and a pull rod is provided at one end of the mounting plate.

Preferably, a rotating shaft bracket is provided at one end of the rotating shaft, the lower end of the rotating shaft bracket is connected to the tooling base, the lower end of the structural frame is connected to the tooling base, and the upper end of the adjusting bracket is connected to the clamping platform.

Preferably, one end of the structural support plate is connected to the adjustment slider, the locking block is engaged with the locking slot, the lower end of the locking slot is connected to the tooling base, and the upper end of the movable support is connected to the clamping platform.

Preferably, the lower end of the screw support is connected to the clamping platform, clamping supports are provided at both ends of the outer side of the clamping screw, a plurality of idler wheels are provided on the outer side of the transmission belt, and the lower end of the rotating rod support is connected to the clamping platform.

Preferably, the structural support is symmetrically arranged on one side of the clamping support, the inner side of the movable slide groove is slidably connected to the mounting plate, one end of the mounting spring is connected to the structural support, and a clamping block is provided on the outer side of the mounting block.

The advantages of the utility model compared with the existing technology are:

(1) The utility model has an adjustment structure installed above the tooling base. When the operator is processing the workpiece, the adjustment structure can be used to adjust the workpiece to a height suitable for his or her height, which is convenient for the operator to process the workpiece and ensures the efficiency of the processing work;

(2) The utility model has a fixing structure installed on one side of the clamping bracket, which fixes the clamping block. The disassembly and assembly of the clamping block is simple, which is convenient for operators to replace the clamping block. Before performing the clamping operation of the workpiece, the operator can replace the clamping block according to the specific model of the workpiece, thereby ensuring stable clamping of the workpiece in subsequent clamping operations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a workpiece clamping fixture for a CNC machine tool according to the present invention.

FIG. 2 is a front view of a cross-sectional view of a workpiece clamping fixture for a CNC machine tool according to the present invention.

FIG3 is a second front view of the structure of a workpiece clamping fixture for a CNC machine tool according to the present invention.

FIG. 4 is a top structural sectional view of a workpiece clamping fixture for a CNC machine tool according to the present invention.

FIG. 5 is a schematic diagram of the top structure of a workpiece clamping fixture for a CNC machine tool according to the present utility model.

FIG. 6 is a schematic diagram of the right side structure of a workpiece clamping fixture for a CNC machine tool according to the present utility model.

As shown in the figure: 1. Tooling base; 2. Adjustment structure; 201. Structural frame; 202. Bidirectional screw; 203. Bevel gear 1; 204. Bevel gear 2; 205. Rotating shaft; 206. Adjustment motor; 207. Adjustment slider; 208. Adjustment connecting rod; 209. Adjustment bracket; 210. Rotating shaft bracket; 3. Locking structure; 301. Structural support plate; 302. Electric telescopic rod; 303. Locking block; 304. Locking slot; 4. Fixed pillar; 5. Lifting slide; 6. Dynamic support; 7, clamping platform; 8, clamping structure; 801, screw bracket; 802, clamping screw; 803, driven wheel; 804, transmission belt; 805, driving wheel; 806, operating rod; 807, rod bracket; 9, clamping bracket; 10, fixed structure; 1001, structural bracket; 1002, moving slide; 1003, limit slide; 1004, mounting plate; 1005, mounting spring; 1006, mounting block; 1007, pull rod; 11, clamping block.

DETAILED DESCRIPTION

The specific implementation of the utility model is further described below in conjunction with the accompanying drawings, wherein the same parts are represented by the same reference numerals.

It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

As shown in FIG1 , the utility model includes a tooling base 1. Before an operator performs processing work on a workpiece, the operator can use an adjustment structure 2 to adjust the height of a clamping platform 7 installed above the workpiece, and adjust the clamped workpiece to a height suitable for the height of the operator, so as to facilitate the operator to perform processing work and ensure that the processing work can be carried out efficiently.

As shown in Figures 3 and 4, when performing the height adjustment operation, the operator releases the lock of the locking structure 3 on the adjustment structure 2. At this time, the operator can start the adjustment motor 206 installed above the tooling base 1. The adjustment motor 206 drives the rotating shaft 205 installed on its power end to rotate. A rotating shaft bracket 210 is installed at one end of the rotating shaft 205. The rotating shaft bracket 210 fixes the rotating shaft 205 above the tooling base 1. The rotating rotating shaft 205 can drive the bevel gear 204 installed on its outer side to rotate. The rotating bevel gear 204 can drive the meshing bevel gear 1 203 on its outer side to rotate. The rotating bevel gear 1 203 can drive the bidirectional screw rod 202 installed on one side to rotate. One end of the bidirectional screw rod 202 is rotated to connect the structural frame 201, and the structural frame 201 adjusts the inner side of the screw rod 202. The entire assembly is fixed above the tooling base 1, and the rotating bidirectional screw rod 202 can drive the two threaded adjustment sliders 207 on its outer side to move. Since the threads on both sides of the bidirectional screw rod 202 are in opposite directions, the two adjustment sliders 207 can move outward at the same time, and the moving adjustment slider 207 drives the adjustment connecting rod 208 installed on its inner side to rotate upward. Since the length of the adjustment connecting rod 208 is fixed, the adjustment connecting rod 208 rotating upward can push the adjustment bracket 209 installed at one end thereof to move upward, and the adjustment bracket 209 pushes the clamping platform 7 installed above it to move upward, so as to achieve the purpose of adjusting the height of the workpiece. After completing the height adjustment operation, the operator can use the locking structure 3 installed on one side of the adjustment slider 207 to lock the adjustment slider 207 to ensure that the upper clamping platform 7 remains stable.

As shown in Figures 3 and 4, when performing the locking operation, the operator can extend the electric telescopic rod 302 installed on the inner side of the structural support plate 301. The electric telescopic rod 302 pushes the locking block 303 installed below it to move downward and engage with the locking slot 304 installed above the tooling base 1 below it. One end of the structural support plate 301 is fixedly connected to the adjustment slider 207 to lock the position of the adjustment slider 207 to ensure that the clamping platform 7 remains stable.

As shown in Figure 2, when the height adjustment operation of the clamping platform 7 is performed, the clamping platform 7 moving upward drives the movable pillar 6 installed below it to move upward, and the outer side of the movable pillar 6 is slidably connected to the lifting slide groove 5 opened on the inner side of the fixed pillar 4. The fixed pillar 4 and the lifting slide groove 5 installed above the tooling base 1 limit the movement of the movable pillar 6 to ensure that the upper clamping platform 7 can move straight upward.

As shown in FIGS. 5 and 6 , before processing the workpiece, the operator uses the clamping structure 8 installed above the clamping platform 7 to drive the clamping bracket 9 to drive the clamping block 11 to clamp the workpiece. When performing the clamping operation, the operator rotates the operating rod 806, and the operating rod 806 can drive the active rotating wheel 805 installed at one end thereof to rotate. A rotating rod bracket 807 is installed on the outer side of the operating rotating rod 806, and the rotating rod bracket 807 fixes the operating rotating rod 806 above the clamping platform 7. The rotating active rotating wheel 805 can rotate through its The transmission belt 804 sleeved on the outside drives the driven wheels 803 installed on both sides to rotate. The rotating driven wheels 803 can drive the clamping screw 802 installed on one side to rotate. Since the threads on both sides of the clamping screw 802 are in opposite directions, the rotating clamping screw 802 can drive the two clamping brackets 9 connected by its outer threads to move toward the center at the same time, driving the clamping block 11 to clamp the workpiece. A screw bracket 801 is installed on the outside of the clamping screw 802, and the screw bracket 801 fixes the clamping screw 802 above the clamping platform 7.

As shown in FIGS. 3 and 6 , before performing the clamping operation, the operator can use the fixing structure 10 to release the fixation of the clamping block 11, and replace the clamping block 11 of the corresponding model according to the size of the workpiece to be clamped. When performing the disassembly operation, the operator pulls the two pull rods 1007 outward at the same time, and the pull rod 1007 drives the mounting plate 1004 installed at one end thereof to move outward, and the moving mounting plate 1004 drives the mounting block 1006 installed at one side thereof to move outward, releasing the connection between the mounting block 1006 and the clamping block 11. At this time, the operator can remove the clamping block 11 for replacement, and the mounting plate 1004 moving outward is connected to the mounting spring 1 installed on one side thereof. 005 is extruded, the outer side of the mounting plate 1004 is slidably connected to the movable slide groove 1002 provided on the inner side of the structural support 1001, and the inner side of the mounting plate 1004 is slidably connected to the limiting slide bar 1003 installed on the inner side of the structural support 1001. The movable slide groove 1002 and the limiting slide bar 1003 limit the movement of the mounting plate 1004 to ensure that the mounting plate 1004 can move in a straight line. When reinstalling the clamping block 11, the operator can loosen the pull rod 1007, and the compressed mounting spring 1005 pushes the mounting plate 1004 back to its original position, so that the mounting block 1006 is reconnected with the clamping block 11, and the replacement of the clamping block 11 is completed.

During the specific implementation of the utility model, as shown in Figures 1 to 6, when performing the clamping operation of the workpiece, the operator can use the fixing structure 10 to release the fixation of the clamping block 11, and replace the matching clamping block 11 according to the specific model of the workpiece to be clamped, so as to ensure the stability of the subsequent clamping operation. When performing the clamping operation, the operator uses the clamping structure 8 to drive the clamping bracket 9 to drive the two clamping blocks 11 to clamp the workpiece. Before the operator performs the processing work on the workpiece, the operator can use the adjustment structure 2 to adjust the height of the workpiece so that the height of the workpiece is matched with the height of the operator, which is convenient for the operator to perform the processing work and ensure the efficiency of the processing work. After completing the height adjustment operation, the operator can use the locking structure 3 to lock the position of the adjustment structure 2 to ensure that the clamping platform 7 remains stable and ensure the normal progress of the subsequent processing work.

The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims (7)

1. A workpiece clamping fixture for a numerically controlled machine tool, characterized in that it comprises a fixture base (1), an upper end of the fixture base (1) is provided with an adjustment structure (2), the adjustment structure (2) comprises a structural frame (201), two ends of the inner side of the structural frame (201) are provided with bidirectional screw rods (202), one end of the bidirectional screw rod (202) is provided with a bevel gear 1 (203), the outer side of the bevel gear 1 (203) is provided with a matching bevel gear 2 (204), the inner side of the bevel gear 2 (204) is provided with a rotating shaft (205), one end of the rotating shaft (205) is provided with an adjustment motor (206), two ends of the outer side of the bidirectional screw rod (202) are provided with adjustment sliders (207), the inner side of the adjustment slider (207) is provided with an adjustment connecting rod (208), the outer side of the adjustment connecting rod (208) is provided with an adjustment bracket (209), the adjustment structure (2) A locking structure (3) is provided on one side, the locking structure (3) comprises a structural support plate (301), an electric telescopic rod (302) is provided on the inner side of the structural support plate (301), a locking block (303) is provided at the lower end of the electric telescopic rod (302), a matching locking slot (304) is provided on the outer side of the locking block (303), a fixed pillar (4) is provided on the upper end of the tooling base (1), a lifting slot (5) is provided on the inner side of the fixed pillar (4), a movable pillar (6) is provided on the inner side of the lifting slot (5), a clamping platform (7) is provided on the upper end of the adjustment structure (2), a clamping structure (8) is provided on the upper end of the clamping platform (7), a clamping bracket (9) is provided on the inner side of the clamping structure (8), a fixed structure (10) is provided on the upper end of the clamping bracket (9), a clamping block (11) is provided on the inner side of the fixed structure (10). 2. A workpiece clamping fixture for a CNC machine tool according to claim 1, characterized in that: the clamping structure (8) includes a screw support (801), a clamping screw (802) is provided on the inner side of the screw support (801), a driven wheel (803) is provided at one end of the clamping screw (802), a transmission belt (804) is provided on the outer side of the driven wheel (803), a driving wheel (805) is provided on the inner side of the transmission belt (804), an operating rotating rod (806) is provided on one end of the driving rotating wheel (805), and a rotating rod support (807) is provided on the outer side of the operating rotating rod (806). 3. A workpiece clamping fixture for a CNC machine tool according to claim 1, characterized in that: the fixed structure (10) includes a structural support (1001), a movable slide groove (1002) is opened on the inner side of the structural support (1001), a limiting slide bar (1003) is provided on the inner side of the structural support (1001), and mounting plates (1004) are provided at both ends of the outer side of the limiting slide bar (1003), a mounting spring (1005) is provided on one side of the mounting plate (1004), a mounting block (1006) is provided on the other side of the mounting plate (1004), and a pull rod (1007) is provided at one end of the mounting plate (1004). 4. A workpiece clamping fixture for a CNC machine tool according to claim 1, characterized in that: a rotating shaft bracket (210) is provided at one end of the rotating shaft (205), the lower end of the rotating shaft bracket (210) is connected to the fixture base (1), the lower end of the structural frame (201) is connected to the fixture base (1), and the upper end of the adjustment bracket (209) is connected to the clamping platform (7). 5. A workpiece clamping fixture for a CNC machine tool according to claim 1, characterized in that: one end of the structural support plate (301) is connected to the adjustment slider (207), the locking block (303) is engaged with the locking slot (304), the lower end of the locking slot (304) is connected to the fixture base (1), and the upper end of the movable support (6) is connected to the clamping platform (7). 6. A workpiece clamping fixture for a CNC machine tool according to claim 2, characterized in that: the lower end of the screw support (801) is connected to the clamping platform (7), clamping supports (9) are provided at both ends of the outer side of the clamping screw (802), a plurality of idler wheels are provided on the outer side of the transmission belt (804), and the lower end of the rotating rod support (807) is connected to the clamping platform (7). 7. A workpiece clamping fixture for a CNC machine tool according to claim 3, characterized in that: the structural support (1001) is symmetrically arranged on one side of the clamping support (9), the inner side of the movable slide groove (1002) is slidably connected to the mounting plate (1004), one end of the mounting spring (1005) is connected to the structural support (1001), and a clamping block (11) is provided on the outer side of the mounting block (1006).