CN114734281A

CN114734281A - Multistation cnc buffering anchor clamps

Info

Publication number: CN114734281A
Application number: CN202210396543.4A
Authority: CN
Inventors: 董丰华; 翁文广
Original assignee: Guangzhou Xiangling Metal Product Co ltd
Current assignee: Guangzhou Xiangling Metal Product Co ltd
Priority date: 2022-04-15
Filing date: 2022-04-15
Publication date: 2022-07-12

Abstract

The invention discloses a multi-station cnc buffer clamp which comprises a bottom plate, a transverse clamping mechanism and a longitudinal clamping mechanism, wherein the bottom plate is provided with a plurality of clamping holes; the transverse clamping mechanism and the longitudinal clamping mechanism are respectively and transversely and longitudinally arranged on the bottom plate, and the transverse clamping mechanism and the longitudinal clamping mechanism are respectively provided with a first buffer assembly and a second buffer assembly, so that the instantaneous stress on the workpiece is reduced when the workpiece is clamped. When the transverse clamping mechanism and the longitudinal clamping mechanism clamp the workpiece, the workpiece is possibly crushed due to the fact that the workpiece is subjected to a large clamping force instantly, and therefore the first buffer component and the second buffer component are arranged, the buffer effect is achieved when the workpiece is clamped, the driving component is prevented from being crushed in the process of clamping the workpiece, and reliability of equipment is greatly improved.

Description

Multistation cnc buffering anchor clamps

Technical Field

The invention relates to machining equipment, in particular to a multi-station cnc buffer clamp.

Background

CNC machining fixtures, one type of fixture, are used by many machines in the manufacture of mechanical devices. It is installed on machine tool to make the workpiece relative digital control blade and machine tool maintain proper relative position and can bear the effect of cutting speed. The CNC machining clamp has the advantages that the machining precision is very easily and stably guaranteed, and when the CNC machining clamp is used for clamping a workpiece, the position of a workpiece relative machine tool (numerical control blade) is guaranteed by the clamp, the foundation cannot be damaged by the technical strength of workers, and therefore the machining precision of the workpiece can be very easily and stably guaranteed. Improve the worker standard, guarantee safety in production, owing to use special type CNC to process anchor clamps can alleviate worker's labor efficiency, improve worker standard, reduce the regulation to worker's actual operation technical strength, guarantee the security. But present clamps often crush the drive assembly because of excessive pressure.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a buffer clamp for avoiding crushing a workpiece.

A multi-station cnc buffer clamp comprises a bottom plate, a transverse clamping mechanism and a longitudinal clamping mechanism; the transverse clamping mechanism and the longitudinal clamping mechanism are respectively and transversely and longitudinally arranged on the bottom plate, and the transverse clamping mechanism and the longitudinal clamping mechanism are respectively provided with a first buffer assembly and a second buffer assembly, so that the instantaneous stress on a workpiece is reduced when the workpiece is clamped.

The transverse clamping mechanism comprises a first driving unit, a first guiding unit and a pushing platform unit; the first driving unit is installed on the bottom plate, the pushing table unit is installed on the first driving unit, the first guiding unit is connected with the pushing table unit in a sliding mode, and the moving path of the first guiding unit is parallel to that of the first driving unit.

Further, the first driving unit is connected with the first guiding unit through the first buffering assembly.

Further, the first buffer component comprises a push table buckle and a first clamping head; the push bench buckle is installed on the push bench unit, the first clamping head is installed on the driving end of the first driving unit, a through hole is formed in the push bench buckle, the end portion of the first clamping head penetrates through the through hole to be buckled with the push bench buckle, a clamping cavity is formed in the push bench buckle, the end portion of the first clamping head is installed in the clamping cavity, and a gap exists between the end portion and the clamping cavity.

Furthermore, buffer grooves are formed in two sides of the first clamping head, the through hole is sleeved in the buffer grooves, and gaps exist between the buffer grooves and the through hole.

The longitudinal clamping mechanism comprises a second driving unit, a second guiding unit and a clamping unit; the second driving unit is arranged on the bottom plate, the clamping unit is arranged on the driving end of the second driving unit, the second guiding unit is connected with the clamping unit in a sliding mode, and the moving paths of the second guiding unit and the second driving unit are parallel

Further, the second driving unit is connected with the second guiding unit through a second buffering assembly.

Further, the second buffer assembly comprises a clamp piece buckle and a second clamping head; the clamping piece is arranged on the clamping piece unit in a buckling mode, the second clamping head is arranged on the driving end of the second driving unit, a through hole is formed in the clamping piece buckle, and the second clamping head is sleeved on the clamping piece buckle through the through hole.

Furthermore, the clamping piece is provided with a clamping step in a clamping mode, the end portion of the second clamping head is sleeved in the clamping step, and a gap exists between the clamping step and the second clamping head.

The tip of horizontal clamping mechanism is provided with the buffering wheel, the multiunit the buffering wheel equidistance is arranged, and the direction of arrangement with vertical clamping mechanism is parallel, the continuous one side of buffering wheel is provided with the baffle, the baffle with horizontal clamping mechanism is parallel and with vertical clamping mechanism's folder end is relative.

The implementation of the invention has the following beneficial effects:

1. the workpiece is placed on the transverse clamping mechanism firstly, the transverse clamping mechanism pushes the workpiece to move transversely and clamp the workpiece, then the longitudinal clamping mechanism moves longitudinally, the workpiece is clamped and positioned longitudinally, the workpiece is aligned, the workpiece is clamped in a distributed mode, mutual influence of the clamping mechanisms can be avoided, and accuracy in the clamping process is improved greatly.

2. When the transverse clamping mechanism and the longitudinal clamping mechanism clamp the workpiece, the driving assembly can be crushed due to the fact that the driving assembly is subjected to a large clamping force in the moment, the first buffering assembly and the second buffering assembly are arranged, the buffering effect is achieved when the driving assembly is clamped, the driving assembly is prevented from being crushed in the workpiece clamping process, and the reliability of the equipment is greatly improved.

3. The rolling buffer assembly is arranged, so that the workpiece can be prevented from being directly contacted and rubbed with the baffle plate when being positioned and clamped, and the workpiece is effectively prevented from being damaged in the rubbing process.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly described, wherein like parts are designated by like reference numerals. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is an overall schematic view of the multi-station cnc buffer clamp.

Fig. 2 is a schematic view of the first buffer assembly.

Fig. 3 is a schematic view of the second buffer assembly.

In the drawings: 1. a base plate; 2. a transverse clamping mechanism; 20. a first buffer assembly; 200. a pushing table fastener; 201. a first chuck; 21. a first drive unit; 22. a first guide unit; 23. a stage pushing unit; 24. a buffer wheel; 3. a longitudinal clamping mechanism; 30. a second buffer assembly; 300. clamping the clamp; 301. a second chuck; 31. a second driving unit; 32. a second guide unit; 33. a clamping unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Examples

The embodiment provides a multistation cnc buffer clamp, a workpiece is placed on a transverse clamping mechanism 2, the transverse clamping mechanism 2 pushes the workpiece to move transversely to clamp, at the moment, the longitudinal position of the workpiece may protrude outwards to influence the accuracy of subsequent processing, then a longitudinal clamping mechanism 3 moves longitudinally to clamp and position the workpiece longitudinally, so that the workpiece is aligned and clamped in a distributed mode, the mutual influence of the clamping mechanisms can be avoided, and the accuracy in the clamping process is greatly improved. When a workpiece is clamped, in order to ensure that the clamping process of the workpiece is efficient, the speed of the transverse clamping mechanism 2 and the speed of the longitudinal clamping mechanism 3 are higher, and the workpiece can be subjected to a large pressure instantly at the moment of contact with the workpiece, so that the surface of the workpiece is damaged, and the processing quality of a product is influenced.

Specifically, the workpiece is placed on the pushing table unit 23, the first driving unit 21 pushes the pushing table unit 23 to move along the direction of the first guiding unit 22, a blocking strip is arranged on the pushing table unit 23, when the first driving unit 21 pushes the workpiece, the workpiece is prevented from sliding outwards and falling when the first driving unit 21 accelerates instantly, the blocking strip is arranged to block the workpiece, the workpiece is effectively prevented from falling, and the clamping stability is improved.

Specifically, the push table buckle 200 pushes the workpiece to the edge to be tightly pushed in the process of transversely pushing the workpiece, the surface of the workpiece is subjected to first pressure at the moment, then the first chuck 201 pair at the rear continues to move forwards, a gap exists between the end part of the first chuck 201 and the clamping cavity, the gap is gradually reduced in the moving process until the first chuck 201 is in contact with the push table buckle 200, then second pressure is transmitted to the surface of the workpiece through the first chuck 201 to be in contact with the push table buckle 200, and the instantaneous pressure applied to the workpiece is reduced by releasing the pressure in a segmented manner, so that the driving assembly is prevented from being damaged in the clamping process.

Wherein, after finishing clamping the work piece, the through-hole is caught through the dashpot to the pull-back of first dop 201 to realize horizontal clamping mechanism 2's restoration, because there is the clearance in dashpot and the through-hole, dwindle the clearance between dashpot and through-hole through pulling first dop 201, thereby make first dop 201 tip and card chamber break away from the production clearance that appears, the follow-up processing of being convenient for is convenient.

Specifically, in one possible embodiment of the present specification, after the longitudinal clamping mechanism 3 finishes clamping the workpiece, the second driving unit 31 pushes the clamping unit to move along the second guiding unit 32, and then the clamping unit contacts with the workpiece to position and clamp the workpiece.

Specifically, the clamping piece buckle 300 pushes the workpiece to the edge to be tightly pressed in the process of longitudinally pushing the workpiece, the surface of the workpiece is subjected to first pressure at the moment, then the second clamping head 301 pair at the rear continues to move forwards, a gap exists between the end part of the second clamping head 301 and the clamping piece buckle 300, the gap is gradually reduced in the moving process until the second clamping head 301 is in contact with the clamping piece buckle 300, the second pressure is transmitted to the surface of the workpiece through the second clamping head 301 to be in contact with the clamping piece buckle 300, the instant pressure applied to the driving assembly is reduced by releasing the pressure in a segmented mode, and the driving assembly is prevented from being damaged in the clamping process.

After the workpiece is clamped, the second chuck 301 is pulled back to hook the clamping step through the second chuck 301, so that the longitudinal clamping mechanism 3 is reset, and the gap between the clamping steps is reduced by pulling the second chuck 301 due to the gap between the second chuck 301 and the clamping step, so that the second chuck 301 is separated from the clamping piece buckle 300 to generate a gap, and the subsequent processing is convenient.

In one possible embodiment of the present specification, after the transverse clamping mechanism 2 clamps the workpiece, the longitudinal clamping mechanism 3 clamps the workpiece longitudinally, but in this state, the workpiece is already subjected to transverse pressure to longitudinally press the workpiece, and the workpiece is subjected to abrasion of the baffle due to direct contact with the baffle. The buffer wheel 24 is arranged in the state, sliding friction is replaced by rolling friction, abrasion of a workpiece can be effectively reduced, the buffer wheel 24 can be connected with the bottom plate 1 through the elastic piece, and a better buffer effect can be achieved.

It will be understood that the above description is only illustrative of certain embodiments of the present invention, and is not to be construed as limiting the scope of the invention, which is defined by the appended claims. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The multi-station cnc buffer clamp is characterized by comprising a base plate (1), a transverse clamping mechanism (2) and a longitudinal clamping mechanism (3);

the transverse clamping mechanism (2) and the longitudinal clamping mechanism (3) are respectively transversely and longitudinally arranged on the base plate (1), and the transverse clamping mechanism (2) and the longitudinal clamping mechanism (3) are respectively provided with a first buffer assembly (20) and a second buffer assembly (30) so as to reduce the instantaneous stress on the workpiece when the workpiece is clamped.

2. A multistation cnc buffer clamp according to claim 1, characterized in that the transverse clamping mechanism (2) comprises a first drive unit (21), a first guide unit (22) and a push bench unit (23);

the first driving unit (21) is installed on the bottom plate (1), the pushing table unit (23) is installed on the first driving unit (21), the first guiding unit (22) is connected with the pushing table unit (23) in a sliding mode, and the moving path of the first guiding unit (22) is parallel to that of the first driving unit (21).

3. A multistation cnc buffer clamp according to claim 2, characterized in that the first drive unit (21) and the first guide unit (22) are connected by the first buffer assembly (20).

4. The multistation cnc buffer clamp according to claim 2, characterized in that the first buffer assembly (20) comprises a push bench buckle (200) and a first chuck (201);

push away a buckle (200) and install on pushing away a unit (23), first dop (201) are installed on the drive end of first drive unit (21), it is provided with the through-hole on a buckle (200) to push away, the tip of first dop (201) through pass the through-hole with push away a buckle (200) lock, set up the card chamber in a buckle (200) of pushing away, the tip of first dop (201) is installed in the card chamber, and has the clearance between tip and the card chamber.

5. The multi-station cnc buffer clamp as claimed in claim 2, wherein buffer grooves are formed in two sides of the first chuck (201), the through hole is sleeved in the buffer grooves, and gaps exist between the buffer grooves and the through hole.

6. A multistation cnc buffer clamp according to claim 1, characterized in that the longitudinal clamping mechanism (3) comprises a second drive unit (31), a second guide unit (32) and a clamp unit;

the second driving unit (31) is installed on the bottom plate (1), the clamping unit is installed on the driving end of the second driving unit (31), the second guiding unit (32) is connected with the clamping unit in a sliding mode, and the moving path of the second guiding unit (32) is parallel to that of the second driving unit (31).

7. A multistation cnc buffer clamp according to claim 6, characterized in that the second drive unit (31) and the second guide unit (32) are connected by a second buffer assembly (30).

8. The multistation cnc buffer clamp according to claim 6, characterized in that the second buffer assembly (30) comprises a clamp clip (300) and a second chuck (301);

the clamping piece buckle (300) is installed on the clamping piece unit, the second clamping head (301) is installed on the driving end of the second driving unit (31), a through hole is formed in the clamping piece buckle (300), and the second clamping head (301) is sleeved on the clamping piece buckle (300) through the through hole.

9. The multi-station cnc buffer clamp according to claim 6, wherein the clamp fastener (300) is provided with a clamping step, the end part of the second clamping head (301) is sleeved in the clamping step, and a gap is formed between the clamping step and the second clamping head (301).

10. A multi-station cnc buffer clamp according to claim 1, characterized in that the end of the transverse clamping mechanism (2) is provided with buffer wheels (24), a plurality of groups of the buffer wheels (24) are arranged at equal intervals, and the arrangement direction is parallel to the longitudinal clamping mechanism (3), and the connecting side of the buffer wheels (24) is provided with a baffle plate which is parallel to the transverse clamping mechanism (2) and is opposite to the clamping end of the longitudinal clamping mechanism (3).