CN210818489U

CN210818489U - CNC adds clamping apparatus

Info

Publication number: CN210818489U
Application number: CN201921350468.8U
Authority: CN
Inventors: 谢彪
Original assignee: Huizhou Ontap Surface Treatment Technology Co ltd
Current assignee: Huizhou Ontap Surface Treatment Technology Co ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-23
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses a CNC adds clamping apparatus is through setting up base and centre gripping external member. When a workpiece needs to be clamped, the workpiece is placed on the material carrying table, and the positioning pins are arranged on the material carrying table and play a role in pre-positioning the workpiece, so that the workpiece is prevented from being subjected to position deviation to influence subsequent machining precision; in addition, be provided with a plurality of buffering protruding grains on the grip block, and buffering protruding grain is radial distribution with the central axis of grip block, and a plurality of buffering protruding grains can play the effect of buffering, prevent to lead to the work piece to take place deformation damage because clamping-force is too big.

Description

CNC adds clamping apparatus

Technical Field

The utility model relates to an anchor clamps technical field especially relates to a CNC adds clamping apparatus.

Background

At present, CNC machining generally refers to computer numerical control precision machining, CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines and the like. CNC is a novel processing technology, and the main work is to program a processing program, namely, the original manual work is changed into computer programming. Of course, manual machining experience is required. CNC machining has the following advantages: firstly, the number of tools is greatly reduced, and complex tools are not needed for processing parts with complex shapes. If the shape and the size of the part are required to be changed, only the part machining program needs to be modified, and the method is suitable for new product development and modification; secondly, the processing quality is stable, the processing precision is high, the repetition precision is high, and the processing requirements of the aircraft are met; production efficiency is high under the conditions of multi-variety and small-batch production, the time of production preparation, machine tool adjustment and process inspection can be reduced, and the cutting time is reduced due to the use of the optimal cutting amount; and fourthly, the method can process complex molded surfaces which are difficult to process by the conventional method, and even can process some processing parts which cannot be observed.

CNC machining is applied to various industries, particularly the machining and manufacturing industry, as it enables fine machining of a workpiece, the machining and manufacturing of the workpiece will involve CNC machining. In order to ensure that a workpiece cannot deviate in position during CNC machining, the workpiece is clamped and fixed, most of the existing clamps clamp and fix the workpiece in a locking mode, the workpiece is firstly placed on an objective table, a cover plate covers the workpiece, and finally the cover plate is locked on the objective table through a locking screw, so that the locking operation is completed, but the processes need to consume more manpower for clamping and fixing, and are not beneficial to improving the production efficiency; in addition, in order to ensure the position accuracy of a workpiece, a positioning pin is arranged on the clamp in the prior art, a positioning hole is machined in advance in the workpiece, and when the workpiece is placed on the clamp, the workpiece is pre-positioned by inserting the positioning pin into the positioning hole; moreover, when the existing clamp clamps and fixes the workpiece, the workpiece is easily deformed due to overlarge clamping force, and the workpiece is further damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing one kind to the fixed step of centre gripping of work piece comparatively simple, spacing work piece position can be stabilized to the locating pin, prevents that the work piece from taking place the follow-up machining precision of influence of skew to and can not lead to the work piece to take place the CNC adds clamping apparatus that the deformation damaged because of the clamping-force is too big.

The purpose of the utility model is realized through the following technical scheme:

a CNC machining fixture comprising:

a base; and

the clamping assembly comprises a material carrying table, a vertical lifting assembly, a connecting rod, a clamping block, a cover plate and a plurality of positioning pins, wherein the material carrying table is arranged on the base, a through hole is formed in the material carrying table, each positioning pin is arranged on the material carrying table, in one positioning pin, each positioning pin comprises a positioning core column and a positioning conical top, the positioning core column is arranged on the material carrying table, the positioning conical top is arranged on the positioning core column, the diameter of the positioning conical top is gradually reduced towards the direction far away from the positioning core column, so that the positioning conical top forms a conical dome part at the end part position, the vertical lifting assembly is arranged on the base, the connecting rod is connected with a driving shaft of the vertical lifting assembly, the connecting rod is positioned in the through hole, and the clamping block is arranged on the connecting rod, the clamping block is provided with a plurality of buffering convex particles on a side face close to the material carrying platform, each buffering convex particle is radially distributed with the central axis of the clamping block, the cover plate is provided with a plurality of positioning groove bodies on one side close to the material carrying platform, the cover plate is provided with a through hole on one side far away from the material carrying platform, a avoiding hole is formed in the side wall of the through hole, and the vertical lifting assembly is used for driving the clamping block to move towards the direction close to the cover plate, so that the clamping block is in close contact with the cover plate.

In one embodiment, the base comprises a round base, an object carrying plate and two protection side plates, the two protection side plates are respectively connected with the round base and the object carrying plate, the object carrying platform is arranged on the object carrying plate, the vertical lifting assembly is arranged on the object carrying plate, and the vertical lifting assembly is located between the two adjacent protection side plates.

In one embodiment, the circular base is provided with a plurality of lightening holes, and the lightening holes are distributed annularly around the central axis of the circular base.

In one embodiment, the round base is provided with a plurality of mounting holes, and a gap is arranged between every two adjacent mounting holes.

In one embodiment, the material loading platform is provided with a round corner part at the position of the side wall.

In one embodiment, the cover plate is provided with a handle.

In one embodiment, the handle comprises a rod body and a cap body, one end of the rod body is connected with the cover plate, and the other end of the rod body is connected with the cap body.

In one embodiment, the rod and the cap are integrally formed.

In one embodiment, the vertical lifting assembly is provided with a plurality of heat dissipation holes, and the inner wall of each heat dissipation hole is provided with a heat conducting adhesive layer.

In one embodiment, the vertical lift assembly is a pneumatic cylinder.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model discloses a CNC adds clamping apparatus is through setting up base and centre gripping external member. In the practical application process, when a workpiece needs to be clamped, the workpiece is placed on the material carrying table, and due to the fact that the material carrying table is provided with the positioning pins, the positioning pins play a role in pre-positioning the workpiece, the workpiece is prevented from being subjected to position deviation, the subsequent machining precision is prevented from being influenced, then the cover plate is covered on the workpiece, the positioning pins are inserted into the positioning groove body, the cover plate is positioned, finally, the vertical lifting assembly is started to work, the vertical lifting assembly drives the clamping blocks to move towards the direction close to the cover plate, the clamping blocks are in close contact with the cover plate, the cover plate is clamped, and the workpiece is clamped and fixed, so that the clamping and fixing operation is simple and convenient, and the subsequent workpiece machining efficiency can be greatly improved; in addition, be provided with a plurality of buffering protruding grains on the grip block, and buffering protruding grain is radial distribution with the central axis of grip block, and a plurality of buffering protruding grains can play the effect of buffering, prevent to lead to the work piece to take place deformation damage because clamping-force is too big.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a CNC machining fixture according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a CNC machining fixture with another view angle according to an embodiment of the present invention;

fig. 3 is an assembly schematic view of a base, a material loading platform, a vertical lifting assembly, a connecting rod, a clamping block and a plurality of positioning pins according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a clamping block according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a cover plate according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a CNC machining fixture 10 includes a base 100 and a clamping kit 200.

Thus, it should be noted that the base 100 plays a role of bearing; the clamping sleeve 200 plays a role in clamping and fixing the workpiece.

Referring to fig. 1, 3, 4 and 5, the clamping assembly 200 includes a material loading platform 210, a vertical lifting assembly 220, a connecting rod 230, a clamping block 240, a cover plate 250 and a plurality of positioning pins 260, the material loading platform 210 is disposed on the base 100, the material loading platform 210 is disposed with through holes 211, each positioning pin 260 is disposed on the material loading platform 210, in one positioning pin 260, the positioning pin 260 includes a positioning core pillar 261 and a positioning conical top 262, the positioning core pillar 261 is disposed on the material loading platform 210, the positioning conical top 262 is disposed on the positioning core pillar 261, and the diameter of the positioning conical top 262 is gradually reduced towards a direction far away from the positioning core pillar, so that the positioning conical top 262 forms a conical dome portion 262a at an end position, the vertical lifting assembly 220 is disposed on the base 100, the connecting rod 230 is connected with a driving shaft of the vertical lifting assembly 220, the connecting rod 230 is disposed in the through hole 211, the clamping block 240 is disposed on the connecting rod 230, the clamping block 240 is provided with a plurality of buffer convex particles 241 on a side surface close to the material loading platform 210, each buffer convex particle 241 is radially distributed with a central axis of the clamping block 240, the cover plate 250 is provided with a plurality of positioning groove bodies 251 on one side close to the material loading platform 210, the cover plate 250 is provided with a through hole 252 on one side far away from the material loading platform 210, a position avoiding hole 252a is formed in the side wall of the through hole 252, and the vertical lifting assembly 220 is used for driving the clamping block 240 to move towards the direction close to the cover plate 250, so that the clamping block 240 is in close contact with the cover plate 250.

Thus, it should be noted that, when a workpiece needs to be clamped, a plurality of positioning holes are pre-processed before the workpiece is clamped, and the diameter of each positioning hole is equal to the diameter of the positioning stem 261, and meanwhile, a yielding hole is further processed on the workpiece, and the yielding hole is used for the avoiding connecting rod 230 and the clamping block 240. Firstly, aligning the positioning hole of the workpiece with the positioning pin 260, wherein the positioning pin 260 comprises a positioning core column 261 and a positioning conical top 262, the diameter of the positioning core column 261 is equal to that of the positioning hole, and the diameter of the positioning conical top 262 is gradually reduced towards the direction far away from the positioning core column 261, so that the positioning conical top 262 forms a conical dome part 262a at the end position, when the workpiece is placed, the positioning pin 260 can be better inserted into the positioning hole, and because the diameter of the positioning core column 261 is equal to that of the positioning hole, when the workpiece is placed on the loading table 210, the positioning pin 260 can well position the workpiece to prevent the workpiece from position deviation, then, aligning the positioning groove body 251 of the cover plate 250 with the positioning pin 260, covering the cover plate 250 on the workpiece, because the cover plate 250 is also provided with the through hole 252, the side wall of the through hole 252 is provided with the position avoiding hole 252a, when the cover plate 250 is covered, connecting rod 230 and clamping block 240 can wear to establish through-hole 252, and at this moment, operating personnel need remove apron 250, with connecting rod 230 and clamping block 240 remove to avoiding in the position hole 252a, at this moment, start vertical lift subassembly 220, vertical lift subassembly 220 drive clamping block 240 moves towards the direction that is close to apron 250 to make clamping block 240 and apron 250 in close contact with, grasp apron 250, and then grasp the work piece.

It should be further noted that the clamping block 240 is provided with a plurality of buffering convex particles 241, the buffering convex particles 241 are radially distributed around the central axis of the clamping block 240, and the buffering convex particles 241 can play a role in buffering, so as to prevent the workpiece from being deformed and damaged due to too large clamping force.

Further, referring to fig. 3 again, in one embodiment, the base 100 includes a round base 110, a loading plate 120 and two protection side plates 130, wherein the two protection side plates 130 are respectively connected to the round base 110 and the loading plate 120, the loading platform 210 is disposed on the loading plate 120, the vertical lifting assembly 220 is disposed on the loading plate 210, and the vertical lifting assembly 220 is located between two adjacent protection side plates 130.

Thus, it should be noted that the round base 110 plays a role of bearing; the carrier plate 120 also plays a bearing role; the two protective side plates 130 both play a role in protection, and prevent the vertical lifting assembly 220 from colliding with an external object and being damaged.

Further, referring to fig. 3 again, in an embodiment, a plurality of lightening holes 111 are formed on the circular base 110, and the lightening holes 111 are annularly distributed on the central axis of the circular base 110.

In this way, it should be noted that the opening of the plurality of lightening holes 111 can reduce the overall weight of the circular base 110 while ensuring the mechanical strength of the circular base 110.

Further, referring to fig. 2, in an embodiment, a plurality of mounting holes 112 are formed on the circular base 110, and a space is disposed between two adjacent mounting holes 112.

In this way, it should be noted that a plurality of mounting holes 112 are formed for mounting the circular base 110 on a predetermined station.

Further, referring to fig. 1 again, in one embodiment, the material loading platform 210 is provided with a rounded portion 211 at a side wall position.

In this way, the rounded portion 211 can prevent the material loading platform 210 from being damaged due to excessive physical contact with an external object.

Further, referring to fig. 5 again, in one embodiment, the cover plate 250 is provided with a handle 253.

Thus, it should be noted that the arrangement of the handle 253 can make the operator more convenient to extract the cover plate 250, and the clamping efficiency can be improved to a certain extent.

Further, in one embodiment, the handle 253 includes a rod and a cap, wherein one end of the rod is connected to the cover plate, and the other end of the rod is connected to the cap.

Therefore, the rod body plays a role in connection; the cap body plays a grabbing role. Specifically, the rod body and the cap body are of an integrally formed structure. In this way, the design of the integrally molded structure can enhance the overall mechanical strength of the handle 253 and prolong the service life of the handle 253.

Further, referring to fig. 3 again, in one embodiment, the vertical lifting assembly 220 is provided with a plurality of heat dissipation holes 221, and the inner wall of each heat dissipation hole 221 is provided with a thermal conductive adhesive layer.

As described above, the plurality of heat dissipation holes 221 are formed to dissipate heat and prevent excessive heat from being accumulated in the vertical lift assembly 220. Specifically, the vertical lift assembly 220 is a cylinder.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A CNC machining fixture, comprising:

a base; and

2. The CNC machining fixture of claim 1, wherein the base comprises a round base, a carrying plate and two protection side plates, the two protection side plates are respectively connected with the round base and the carrying plate, the carrying platform is arranged on the carrying plate, the vertical lifting assembly is arranged on the carrying plate, and the vertical lifting assembly is located between the two adjacent protection side plates.

3. The CNC machining fixture of claim 2, wherein the circular base is provided with a plurality of lightening holes, and the lightening holes are annularly distributed around a central axis of the circular base.

4. The CNC machining fixture of claim 2, wherein the circular base is provided with a plurality of mounting holes, and a space is formed between each two adjacent mounting holes.

5. The CNC machining fixture of claim 1, wherein the loading table is provided with a rounded portion at a side wall position.

6. The CNC machining fixture of claim 1, wherein a handle is provided on the cover plate.

7. The CNC machining fixture of claim 6, wherein the handle comprises a rod and a cap, one end of the rod is connected with the cover plate, and the other end of the rod is connected with the cap.

8. The CNC machining fixture of claim 7, wherein the shank and the cap are of an integrally formed structure.

9. The CNC machining fixture of claim 1, wherein the vertical lifting assembly is provided with a plurality of heat dissipation holes, and an inner wall of each heat dissipation hole is provided with a heat conductive adhesive layer.

10. The CNC machining fixture of claim 9, wherein the vertical lift assembly is a cylinder.