CN213080747U - A workpiece clamping device for CNC digit control machine tool for precision mold processing - Google Patents

Abstract

The utility model discloses a workpiece clamping device for CNC (computer numerical control) machine tool for precision die machining, which comprises a machine tool main body, a pair of clamping bases and a pair of power components, wherein the machine tool main body is provided with a pair of symmetrical clamping bases, and the clamping bases are provided with a pair of clamping components, and the clamping bases are embedded with a pair of power components, the utility model relates to the technical field of precision die machining, the workpiece clamping device for the numerical control machine tool adopts automatic control to clamp a workpiece, adopts a clamping disc driven synchronously, arranges a resistance increasing block made of replaceable rubber material at the contact part of the clamping block and the workpiece, utilizes the resistance increasing block to increase the contact area, reduces the friction on the surface of the workpiece under the fixed premise, simultaneously, because the resistance increasing block can be replaced, further can be matched with workpieces with different shapes, and is very convenient to operate, and the universality is strong.

Description

A workpiece clamping device for CNC digit control machine tool for precision mold processing

Technical Field

The utility model relates to an accurate mould processing technology field specifically is a workpiece clamping device for CNC digit control machine tool for accurate mould processing.

Background

In the process of machining a precise mould, a CNC (computerized numerical control) machine tool is an important machining device, integrates multiple functions of cutting, milling, drilling and the like, has high automation degree, and can be connected with a central computer in the use process to accurately realize the instruction of the central computer;

for a CNC numerical control machine, various clamping tools are indispensable auxiliary tools in the precision die machining process, the clamping tools play a role in fixing and positioning a workpiece in the working process of the precision die, and the conventional workpiece clamping device needs to be matched with the actions of various machining tools, so that the clamping device of the workpiece must rotate and change angles continuously in the process, so that the stress of the clamped part is in an uneven state in the state, the contact part of the conventional clamping device is hard to play a role in fixing, the workpiece is easy to be clamped, and the fixing effects of planes and curved surfaces are not uniform, so that the problem is deeply researched, and the tunnel is generated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a be not enough to prior art, the utility model provides a workpiece clamping device for CNC digit control machine tool for precision mold processing, the contact site of having solved current clamping device is very hard usually in order to play fixed effect, presss from both sides easily and hinders the work piece, and is not uniform problem to the fixed effect of plane and curved surface.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the workpiece clamping device for the CNC numerical control machine tool for machining the precise die comprises a machine tool main body, a pair of clamping bases and a pair of power assemblies, wherein the machine tool main body is provided with a pair of symmetrical clamping bases;

the clamping assembly comprises: the device comprises a pair of bearings, a driving shaft, a clamping disc, a plurality of clamping blocks and a plurality of resistance increasing blocks;

the pair of clamping bases are embedded with a pair of bearings on opposite wall surfaces respectively, the driving shaft is embedded in the bearings, a clamping disc is arranged at the end part of the driving shaft, a plurality of clamping blocks are installed on the clamping disc in an annular array mode with the center, a plurality of installation grooves are formed in opposite ends of the clamping blocks, and a plurality of resistance increasing blocks are inserted in the installation grooves.

Preferably, the power assembly comprises: the servo motor, the driving gear and the driven gear;

the servo motor is embedded in the clamping base, the driving gear is sleeved on the driving end of the servo motor, and the driven gear is sleeved on the driving shaft and meshed with the driving gear.

Preferably, an operating platform extends from one side of the machine tool main body, and the pair of clamping bases are symmetrically arranged on the center of the operating platform.

Preferably, the operation platform is centrally symmetrical and is provided with a pair of symmetrically arranged linear modules, and the pair of clamping bases is assembled on the pair of linear modules.

Preferably, a limiting groove is formed in the circumferential wall surface of the driving shaft, a limiting cylinder is arranged on the clamping base, and a limiting block matched with the limiting groove is arranged at the end of the limiting cylinder.

Preferably, slots are symmetrically formed in two sides of the mounting groove, inserting strips matched with the slots are arranged on two sides of the resistance increasing block, and the inserting strips are in interference fit with the slots.

Advantageous effects

The utility model provides a workpiece clamping device for CNC digit control machine tool for precision mold processing. The method has the following beneficial effects: this work piece clamping device for digit control machine tool adopts automatic control to carry out the centre gripping of work piece, adopts synchronous drive's centre gripping dish, sets up the resistance-increasing piece that adopts the rubber material that can change at the contact site of grip block and work piece, utilizes the resistance-increasing piece increase area of contact, under fixed prerequisite, reduces the friction to workpiece surface, simultaneously because the resistance-increasing piece can be changed, and then can match the machined part of different shapes, very convenient operation, and the commonality is strong.

Drawings

Fig. 1 is a workpiece clamping device's for CNC digit control machine tool for precision mold processing owner looks sectional structure sketch map.

FIG. 2 is a part of CNC for digit control machine tool workpiece clamping device for precision mold processing looks sideways at the schematic structure drawing.

Fig. 3 is a structure diagram is looked to a CNC is work piece clamping device for digit control machine tool for precision mold processing's main.

Fig. 4 is the utility model discloses a local enlarged structure sketch map of a CNC is work piece clamping device for digit control machine tool for precision mold processing of fig. 1.

In the figure: 1. a machine tool main body; 2. a clamping base; 3. a power assembly; 4. a bearing; 5. a drive shaft; 6. a clamping plate; 7. a clamping block; 8. a resistance increasing block; 9. an operating platform; 10. a linear module; 11. a limiting cylinder; 12. a limiting block; 301. a servo motor; 302. a driving gear; 303. a driven gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.

Example (b): according to the attached drawings 1-4 of the specification, the workpiece clamping device for the CNC numerical control machine tool for the precise die machining comprises a machine tool main body 1, a pair of clamping bases 2 and a pair of power assemblies 3, wherein the machine tool main body 1 is provided with the pair of symmetrical clamping bases 2, the pair of clamping bases 2 is provided with the pair of clamping assemblies, the pair of power assemblies 3 are embedded in the pair of clamping bases 2, the pair of power assemblies 3 are respectively linked with the pair of clamping assemblies, in the specific implementation process, the front side of the machine tool main body 1 extends out of an operating platform 9, the operating platform 9 is preferably provided with a pair of symmetrically arranged linear modules 10, the relative distance between the pair of clamping bases 2 is adjusted through the pair of linear modules 10, the clamping bases 2 play a role in fixing the clamping assemblies, a workpiece to be machined is fixed by utilizing the clamping effect of the pair of clamping assemblies, and then the power assemblies 3, the clamping assembly is driven by the driving device, so that the actions of the mechanical arm of the numerical control machine tool in the machining process are matched, and the machining is finished;

as can be seen from fig. 1-4 of the specification, the clamping assembly comprises: a pair of bearings 4, a driving shaft 5, a clamping disc 6, a plurality of clamping blocks 7 and a plurality of resistance increasing blocks 8, wherein the connection relation and the position relation are as follows;

a pair of bearings 4 are respectively embedded on the opposite wall surfaces of the pair of clamping bases 2, the driving shaft 5 is embedded in the bearings 4, a clamping disc 6 is arranged at the end part of the driving shaft 5, a plurality of clamping blocks 7 are arranged on the clamping disc 6 in an annular array at the center, a plurality of mounting grooves are formed in the opposite ends of the clamping blocks 7, and a plurality of resistance increasing blocks 8 are inserted in the mounting grooves;

in the specific implementation process, a driving shaft 5 is embedded in a bearing 4, the driving shaft 5 can rotate in the bearing 4 to further drive a clamping disc 6 to rotate, a plurality of clamping blocks 7 are distributed on the clamping disc 6 in an annular array, the clamping blocks 7 jointly move relative to the circular synchronous motion of the clamping disc 6 under the control of a numerical control machine tool to further push a plurality of resistance increasing blocks 8 to clamp a workpiece to be processed, the resistance increasing blocks 8 are inserted and installed on the opposite ends of the clamping blocks 7 in an inserting mode, dovetail grooves are formed in the clamping blocks 7, and dovetail-shaped inserting structures matched with the resistance increasing blocks 8 are formed in the resistance increasing blocks 8 matched with the dovetail grooves;

preferably, as can be seen from fig. 1 to 4 of the specification, the power assembly 3 includes: the servo motor 301, the drive gear 302, and the driven gear 303 are connected and positioned as follows;

the servo motor 301 is embedded in the clamping base 2, the driving gear 302 is sleeved on the driving end of the servo motor 301, and the driven gear 303 is sleeved on the driving shaft 5 and meshed with the driving gear 302;

in the specific implementation process, the servo motor 301 is controlled by the numerical control machine to rotate, so that the driving gear 302 on the servo motor is driven to rotate, the driving gear 302 is meshed with the driven gear 303, the driving shaft 5 is driven to rotate, and the driving shaft 5 rotates to drive the clamping disc 6 to rotate, so that the angle adjustment of a workpiece is realized, and the operation of machining by matching with a mechanical arm of the numerical control machine is realized.

Preferably, an operation platform 9 extends from one side of the machine tool body 1, the pair of clamping bases 2 are arranged symmetrically to the center of the operation platform 9, and the operation platform 9 is used for providing a processing space.

Preferably, the operation platform 9 is centrally symmetrical and is provided with a pair of symmetrically arranged linear modules 10, the pair of clamping bases 2 is assembled on the pair of linear modules 10, and the relative distance between the clamping bases 2 is adjusted by the pair of linear modules 10 to match workpieces with different lengths.

As a preferred scheme, furthermore, a limiting groove is formed in the circumferential wall surface of the driving shaft 5, a limiting cylinder 11 is arranged on the clamping base 2, a limiting block 12 matched with the limiting groove is arranged at the end of the limiting cylinder 11, the limiting cylinder 11 is started, a driving block of the limiting cylinder 11 embraces the limiting groove, and the driving shaft 5 is stopped at a set angle.

As a preferred scheme, furthermore, slots are symmetrically formed in two sides of the plurality of mounting grooves, inserting strips matched with the slots are arranged on two sides of the resistance increasing block 8, and the inserting strips are in interference fit with the slots, so that the processing pieces in different shapes can be conveniently replaced.

In conclusion, the workpiece clamping device for the numerical control machine tool adopts automatic control to clamp a workpiece, adopts the synchronously driven clamping disc 6, sets the resistance increasing block 8 made of replaceable rubber materials at the contact part of the clamping block 7 and the workpiece, increases the contact area by utilizing the resistance increasing block 8, reduces the friction on the surface of the workpiece on the premise of fixing, and is very convenient to operate and strong in universality because the resistance increasing block 8 can be replaced and further can be matched with workpieces of different shapes.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The workpiece clamping device for the CNC (computer numerical control) machine tool for machining the precise die comprises a machine tool main body (1), a pair of clamping bases (2) and a pair of power assemblies (3), and is characterized in that the machine tool main body (1) is provided with the pair of symmetrical clamping bases (2), the pair of clamping bases (2) are provided with the pair of clamping assemblies, the pair of power assemblies (3) are embedded in the pair of clamping bases (2), and the pair of power assemblies (3) are respectively linked with the pair of clamping assemblies;

the clamping assembly comprises: the device comprises a pair of bearings (4), a driving shaft (5), a clamping disc (6), a plurality of clamping blocks (7) and a plurality of resistance increasing blocks (8);

the pair of clamping bases (2) are embedded with a pair of bearings (4) on opposite wall surfaces respectively, the driving shaft (5) is embedded in the bearings (4), a clamping disc (6) is arranged at the end part of the driving shaft (5), a plurality of clamping blocks (7) are installed on the clamping disc (6) in an annular array mode with the center, a plurality of installation grooves are formed in opposite ends of the clamping blocks (7), and a plurality of resistance increasing blocks (8) are inserted in the installation grooves.

2. The tool holding apparatus for CNC lathe for precision die machining according to claim 1 is characterized in that the power assembly (3) comprises: a servo motor (301), a drive gear (302), and a driven gear (303);

the servo motor (301) is embedded in the clamping base (2), the driving gear (302) is sleeved on the driving end of the servo motor (301), and the driven gear (303) is sleeved on the driving shaft (5) and meshed with the driving gear (302).

3. The workpiece holding device for a CNC machine tool for precision mold machining according to claim 1, characterized in that, an operation platform (9) is extended from one side of the machine body (1), and a pair of the holding bases (2) is arranged symmetrically to the center of the operation platform (9).

4. The workpiece holding device for a CNC machine tool for precision mold machining according to claim 3, characterized in that, the operation platform (9) is installed with a pair of symmetrically arranged straight line modules (10) with central symmetry, and a pair of the holding bases (2) is assembled on a pair of the straight line modules (10).

5. The workpiece clamping device for the CNC (computer numerical control) machine tool for the precise die machining according to claim 1, wherein a limiting groove is formed on the circumferential wall surface of the driving shaft (5), a limiting cylinder (11) is arranged on the clamping base (2), and a limiting block (12) matched with the limiting groove is arranged at the end part of the limiting cylinder (11).

6. The workpiece clamping device for the CNC numerical control machine tool for the precise die machining according to claim 1, wherein slots are symmetrically formed in two sides of a plurality of the mounting grooves, and inserting strips matched with the slots are arranged on two sides of the resistance increasing block (8) and are in interference fit with the slots.

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