CN218311315U

CN218311315U - Multi-part machining clamping device for electric sparks

Info

Publication number: CN218311315U
Application number: CN202222277509.3U
Authority: CN
Inventors: 吴安川; 袁朝晖; 张晓明
Original assignee: Chengdu Mickel Pml Precision Mechanism Ltd
Current assignee: Chengdu Mickel Pml Precision Mechanism Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-01-17
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to the field of machining, in particular to a multi-part machining clamping device for electric sparks, which comprises a mounting plate and a plurality of clamping units arranged on the mounting plate side by side; the clamping unit is including relative first grip block and the second grip block that sets up, it is provided with a plurality of centre gripping grooves all to correspond on the clamping face that first grip block and second grip block are relative, first grip block bottom is provided with the bottom plate, second grip block and mounting panel sliding connection, its clamping face of second grip block slip direction perpendicular to, first grip block one side is provided with a swivel arm, the right angle bending department of swivel arm is articulated with the mounting panel, the clamping unit is still including being used for controlling the gliding slide mechanism of second grip block, the utility model discloses the advantage can be realized lifting the work piece that has processed off the working solution when processing on one side, the convenient follow-up cleaning work of working solution of drippage work piece surface, and the hand need not contact working solution during the clamping.

Description

Multi-part machining clamping device for electric sparks

Technical Field

The utility model relates to a machining field, especially a many parts machining clamping device for electric spark.

Background

Electric spark machining is a new process for machining by utilizing electric energy and heat energy, and is commonly called as electric discharge machining. The difference between the electric spark machining and the general cutting machining is that when the electric spark machining is carried out, a tool is not in contact with a workpiece, but pulse spark discharge is continuously generated between the tool and the workpiece, and a metal material is gradually eroded by utilizing local and instantaneous high temperature generated during the discharge, so the electric spark machining is called as the electric spark machining because visible sparks are generated in the discharge process;

when machining is carried out, a workpiece to be machined and a discharge electrode need to be completely immersed by insulating working fluid, the discharge electrode discharges to break down the working fluid to machine parts, and as the electric spark machining speed is low, in order to improve the machining speed, an electric spark machine with a multi-electrode head is often used to match a multi-part clamping device, and a plurality of parts are machined simultaneously to improve the machining speed. When the multi-part clamping device is used for electric spark machining, after the machining is finished, if the workpiece is taken out immediately, a lot of working liquid can adhere to the workpiece, so that the workload of subsequently cleaning the workpiece is increased, and the working liquid is wasted; if the part is automatically drained after the working solution is recovered and then taken out, the electric spark machine can be idle, the machining efficiency is reduced, and the working solution can be adhered to the hand of an operator in the process of operating the clamping device because the working solution completely submerges the workpiece, so that the hand of the operator needs to be frequently wiped, and the operation of the operator is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a many parts machining clamping device for electric spark.

The purpose of the utility model is realized through the following technical scheme: a multi-part machining clamping device for electric sparks comprises an installation plate and a plurality of clamping units arranged on the installation plate side by side; the clamping unit comprises a first clamping block and a second clamping block which are arranged oppositely, a plurality of clamping grooves are correspondingly formed in the opposite clamping surfaces of the first clamping block and the second clamping block, a bottom plate is arranged at the bottom of the first clamping block, the second clamping block is connected with the mounting plate in a sliding mode, an L-shaped rotating arm is arranged on one side of the first clamping block, the right-angle bending part of the rotating arm is hinged to the mounting plate, the clamping unit further comprises a sliding mechanism used for controlling the second clamping block to slide, the sliding mechanism is arranged on the mounting plate and connected with the second clamping block, when an electrode tip is machined on a workpiece on one clamping unit, the electrode tip is moved to the next clamping unit for machining, the second clamping block slides away through the sliding mechanism at the moment, the working fluid is taken out of the first clamping block by pulling the L-shaped rotating arm, the part is separated from the working fluid, the working fluid adhered to the part is drained as far as possible, the subsequent cleaning work is facilitated, and meanwhile, the hand part which is operated by the L-shaped rotating arm can be operated without touching the working fluid, so that an operator does not need to wipe the hand.

The utility model discloses a sliding mechanism, including the mounting panel, the mounting panel is connected, and the gear pole is vertical set up on the mounting panel and with the mounting panel rotates, gear pole bottom is provided with the gear, rack horizontal slip set up in on the mounting panel, the rack with gear engagement, the connecting rod middle part with the mounting panel rotates to be connected, second grip block one side is provided with the spliced pole, be provided with the spacing post of rack on the rack, the spacing post of rack and spliced pole respectively with the both ends of connecting rod are connected, the gear pole top is provided with the hand wheel, through rotating the hand wheel, makes the gear drive rack slide, and the rack makes the second grip block slide through the connecting rod, sets up the gear pole, makes the gear pole highly be higher than the working solution liquid level, need not to contact the working solution at the in-process hand that operator operating device presss from both sides tight part.

Specifically, an insulating glue layer is coated on one end of the rotating arm and the hand wheel, so that electric shock caused by poor grounding of an electric spark machine when the clamping device is operated is avoided.

Specifically, the bottom plate protrudes out of the clamping surface of the first clamping block, so that the second clamping block can be pressed on the bottom plate to lock the first clamping block when the clamping unit is in a clamping state.

Specifically, correspond on the mounting panel the bottom plate is provided with the recess, and the recess makes the bottom plate upper surface flush with the mounting panel upper surface, avoids the second grip block jamming when sliding to bottom plate top locking bottom plate.

Specifically, the groove width is greater than the bottom plate width, when first grip block was placed the mounting panel through the rotor arm on, the bottom plate on the first grip block can imbed in the recess, and the working solution in the recess flows out the recess difficulty this moment, and the groove width is greater than the bottom plate width and makes the side of bottom plate and make things convenient for the working solution to flow out.

Specifically, the rotating arm with the articulated department of mounting panel is provided with the torsional spring, the mounting panel is tightly pushed up to torsional spring one end, and the rotating arm is tightly pushed up to the other end, when making first grip block not by the locking of second grip block, can keep the tilt state along with the rotating arm, makes first grip block break away from the working solution, is convenient for dripdry the working solution on the part.

Specifically, the clamping unit still includes the tight mechanism in top, the tight mechanism in top is including pushing up tight spring, be provided with the boss on the mounting panel, the spliced pole is worn to locate in the boss, the spliced pole is located the boss with be provided with the spacing ring in one section between the second grip block, the tight spring housing in top is located on the spliced pole, the tight spring both ends in top are pushed up tight spacing ring and boss respectively, the spliced pole runs through a terminal threaded connection of boss has a stop nut to keep pushing up tight state with the slip of spacing second grip block, messenger second grip block.

Specifically, the mounting panel is provided with spacing boss with swivel arm articulated department one side, spacing boss is used for spacing swivel arm's turned angle.

The bottom plate is provided with a dropping hole corresponding to the deepest position of the clamping groove, the first clamping block is in an inclined state after being separated from the working liquid along with the rotating arm, the working liquid attached to the part can flow into the groove formed by the clamping groove and the bottom plate, the draining effect is influenced, and the working liquid can completely drop after the dropping hole is formed.

The utility model has the advantages of it is following:

1. by arranging the plurality of clamping units, the electric spark machine can process while the parts processed on other clamping units can drain the working solution, so that the working solution attached to the parts is reduced, the subsequent cleaning work on the parts is reduced, and the processing efficiency of the workpieces is not influenced.

2. The parts of the rotating arm and the sliding mechanism which need manual operation are higher than the liquid level of the working liquid, so that the hands of an operator can be prevented from contacting the working liquid when the operator clamps a part, the operator does not need to carry gloves or frequently wipe the hands, and the work complexity of the operator is reduced.

Drawings

Fig. 1 is a schematic structural view of the clamping device for multi-part machining of electric sparks of the present invention;

fig. 2 is an exploded view of the clamping device for electric spark machining of multiple parts of the present invention;

fig. 3 is a top view of the clamping device for electric spark machining of multiple parts of the present invention;

FIG. 4 is an enlarged view of FIG. 3 at A;

in the figure: 1. mounting a plate; 2. a rack; 3. a gear lever; 4. a hand wheel; 5. a first clamping block; 6. a base plate; 7. a clamping groove; 8. a rack limiting column; 9. a rack limiting clamp; 10. a connecting rod; 11. a boss; 12. the spring is tightly propped; 13. a second clamping block; 14. a limiting boss; 15. a groove; 16. a rotating arm; 17. a gear; 18. a sliding post; 19. a chute; 20. a limit nut; 21. connecting columns; 22. a dovetail block; 23. a rotating shaft; 24. hinging a shaft; 25. the torsion spring tightly props the column; 26. a gear rod mounting hole; 27. a mounting frame; 28. a dovetail groove; 29. a hinge ear; 30. a torsion spring; 31. a limiting ring; 32. and (4) a liquid dropping hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that 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, an element defined by the phrases "comprising a" \8230; "does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element.

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-3, a multi-part machining clamping device for electric sparks comprises a mounting plate 1 and a plurality of clamping units arranged on the mounting plate 1 side by side; the clamping unit comprises a first clamping block 5 and a second clamping block 13 which are oppositely arranged, a plurality of clamping grooves 7 are correspondingly arranged on the opposite clamping surfaces of the first clamping block 5 and the second clamping block 13, the bottom of the first clamping block 5 is provided with a bottom plate 6, the second clamping block 13 is connected with the mounting plate 1 in a sliding way, the sliding direction of the second clamping block 13 is vertical to the clamping surface, one side of the first clamping block 5 is provided with an L-shaped rotating arm 16, one end of the rotating arm 16 is connected with the first clamping block 5, the right-angle bending part of the rotating arm 16 is hinged with the mounting plate 1, the clamping unit further comprises a sliding mechanism for controlling the second clamping block 13 to slide, the sliding mechanism is arranged on the mounting plate 1 and connected with the second clamping block 13, in this embodiment, the mounting plate 1 is provided with a hinge lug 29, the hinge lug 29 is provided with a hinge shaft 24, the rotating arm 16 is hinged with the mounting plate 1 through the hinge shaft 24 on the hinge lug 29, the second clamping block 13 is provided with a dovetail block 22, the mounting plate 1 is provided with a dovetail groove 28, the second clamping block 13 is connected with the mounting plate 1 in a sliding way through a dovetail groove 28 and a dovetail block 22, the rotating track surface of the rotating arm 16 is vertical to the mounting plate 1, by pulling one end of a rotating arm 16 of one clamping module, the first clamping block 5 is jointly separated from the working liquid, and at the same time, the first clamping block 5 is also in an inclined state due to the inclination of the rotating arm 16, and the bottom of the first clamping block 5 is provided with the bottom plate 6, so that the part is supported by the clamping groove 7 and the bottom plate 6 together, the part can drain the working solution on the surface, in the draining process, parts clamped on other clamping modules are machined by the electric spark machine, so that the production efficiency is improved.

Further, the sliding mechanism comprises a connecting rod 10, a rack 2 and a gear rod 3, the gear rod 3 is vertically arranged on the mounting plate 1 and is rotatably connected with the mounting plate 1, a gear 17 is arranged at the bottom of the gear rod 3, the rack 2 is horizontally and slidably arranged on the mounting plate 1, the sliding track of the rack 2 is parallel to the sliding track of the second clamping block 13, the rack 2 is meshed with the gear 17, the middle part of the connecting rod 10 is rotatably connected with the mounting plate 1, a connecting column 21 is arranged on one side of the second clamping block 13, a rack limiting column 8 is arranged on the rack 2, the rack limiting column 8 and the connecting column 21 are respectively slidably connected with two ends of the connecting rod 10, a hand wheel 4 is arranged at the top of the gear rod 3, in the embodiment, sliding columns 18 are vertically arranged on the rack limiting column 8 and the connecting column 21, sliding grooves 19 are arranged at two ends of the connecting rod 10, the rack limiting column 8 and the connecting column 21 are slidably connected with the sliding grooves 19 through the sliding columns 18, a gear rod mounting hole 26 is arranged on the mounting plate 1, a connecting rod mounting plate 27 is rotatably arranged on the mounting plate 1, one end of the rack limiting column 26 is rotatably connected with the gear rod mounting plate 1 through a gear rod mounting clamp 23, the rack rod 17, a rack limiting column 9 is arranged on the mounting plate 17, and a rack bar mounting plate 17, the rack bar mounting plate 9, and a clamp 23, the rack bar mounting plate 17 is arranged on the rack bar mounting plate 1, and a clamp 23, the rack bar mounting plate 17, and a rack bar mounting plate 9, the gear 17 drives the rack 2 to enable the rack 2 to slide, the rack 2 slides to drive the connecting rod 10 to rotate, and the other end of the connecting rod 10 drives the second clamping block 13 to move, so that the second clamping block 13 can clamp or loosen parts.

Furthermore, an insulating adhesive layer is coated on one end of the rotating arm 16 and the hand wheel 4, and the insulating adhesive layer prevents an operator from electric shock caused by poor grounding of the electric spark machine.

Furthermore, the bottom plate 6 protrudes from the clamping surface of the first clamping block 5, when the second clamping block 13 clamps the component, the second clamping block 13 partially presses on the bottom plate 6 to limit the rotation of the first clamping block 5 along with the rotating arm 16, so that the first clamping block 5 is kept attached to the mounting plate 1 to clamp the component.

Furthermore, a groove 15 is formed in the mounting plate 1 corresponding to the bottom plate 6, so that the top surface of the bottom plate 6 is flush with the surface of the mounting plate 1, and the second clamping block 13 can slide smoothly when clamping parts and partially pressing the bottom plate 6, thereby avoiding interference.

Further, the width of the groove 15 is larger than that of the bottom plate 6, so that when the bottom plate 6 is embedded into the groove 15, a gap is formed between the side wall of the bottom plate 6 on one side of the clamping groove 7 and the side wall of the groove 15, so that the bottom plate 6 is prevented from interfering when being embedded into the groove 15 along with the rotation of the rotating arm 16, and when the first clamping block 5 is placed on the mounting plate 1 through the rotating arm 16, the bottom plate 6 on the first clamping block 5 can be embedded into the groove 15, at the moment, the working fluid in the groove 15 flows out of the groove 15 difficultly, the width of the groove 15 is larger than that of the bottom plate 6, so that the side surface of the bottom plate 6 and the convenient working fluid flow out, in the process that the first clamping block 5 rotates to be attached to the mounting plate 1 along with the rotating arm 16, the bottom plate 6 can be embedded into the groove 15, the working fluid in the groove 15 cannot flow out when the bottom plate 6 is embedded into the groove 15, and the overflow groove 15 is provided for the convenient working fluid to flow out of the working fluid.

Further, the rotor arm 16 with the articulated department of mounting panel 1 is provided with torsional spring 30, the tight mounting panel 1 in torsional spring 30 one end top, the tight rotor arm 16 in other end top, in this embodiment, 24 one ends of articulated shaft are outstanding in articulated ear 29, and the outstanding one end of articulated shaft 24 is located to the torsional spring 30 cover, is provided with the torsional spring 30 fore-set on the rotor arm 16, the tight mounting panel 1 in torsional spring 30 one end top, the other end is through propping tight torsional spring 30 fore-set and come the tight rotor arm 16 in top, makes the rotor arm 16 can lift up first grip block 5 under the condition of no exogenic action, makes first grip block 5 keep breaking away from the state of working solution.

Further, the clamping unit still includes the tight mechanism in top, the tight mechanism in top includes the tight spring 12 in top, be provided with boss 11 on the mounting panel 1, spliced pole 21 wears to locate in boss 11, spliced pole 21 is located boss 11 with be provided with spacing ring 31 in one section between the second grip block 13, the tight spring 12 cover in top is located on the spliced pole 21, tight spring 12 both ends in top push up spacing ring 31 and boss 11 respectively, spliced pole 21 runs through a stop nut 20 is with the slip of spacing second grip block 13 to one end threaded connection of boss 11, because spark-erosion machining is non-contact processing, and the electrode tip does not contact the part man-hour, and the part does not receive the effect of cutting force, so need not to use too big clamping-force during the centre gripping, and the elasticity of the tight spring 12 satisfies the requirement that the centre gripping found, when pressing from both sides tightly, through the hand wheel 4 at the rotation gear pole 3 top, makes the second grip block 13 break away from first grip block 5, puts the part in the centre gripping groove 7 of first grip block 5 after, the rotor arm 16, with first grip block 5, the tight spring 5 of first grip block 5 of the tight spring of the hand wheel laminating, push away from this moment and the tight spring, push away from the first grip block, the tight spring 5 of the tight spring.

Furthermore, a limiting boss 14 is arranged on one side of the hinged position of the mounting plate 1 and the rotating arm 16, and the limiting boss 14 is used for limiting the rotating angle of the rotating arm 16.

Further, the bottom plate 6 is provided with a dropping hole 32 corresponding to the deepest position of the clamping groove 7, when the working solution on the part is drained again, the first clamping block 5 is in an inclined state, the bottom plate 6 is arranged at the bottom of the clamping groove 7, the working solution can be deposited on the bottom plate 6 again, and the dropping hole 32 is formed in the bottom plate 6, so that the deposited working solution is discharged out of the clamping groove 7, and the working solution is drained as much as possible.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any way. The technical solutions of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the invention. Therefore, any modification, equivalent change and modification of the above embodiments according to the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a many parts machining clamping device for electric spark which characterized in that: the clamping device comprises an installation plate (1) and a plurality of clamping units arranged on the installation plate (1) side by side; the clamping unit comprises a first clamping block (5) and a second clamping block (13) which are arranged oppositely, a plurality of clamping grooves (7) are correspondingly formed in the clamping surfaces, opposite to the first clamping block (5) and the second clamping block (13), of the first clamping block (5), a bottom plate (6) is arranged at the bottom of the first clamping block (5), the second clamping block (13) is connected with the mounting plate (1) in a sliding mode, a rotating arm (16) in an L shape is arranged on one side of the first clamping block (5), a right-angle bending portion of the rotating arm (16) is hinged to the mounting plate (1), the clamping unit further comprises a sliding mechanism used for controlling the second clamping block (13) to slide, and the sliding mechanism is arranged on the mounting plate (1) and connected with the second clamping block (13).

2. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: slide mechanism includes connecting rod (10), rack (2), gear pole (3) vertical set up on mounting panel (1) and with mounting panel (1) rotates to be connected, gear pole (3) bottom is provided with gear (17), rack (2) horizontal slip set up in on mounting panel (1), rack (2) with gear (17) meshing, connecting rod (10) middle part with mounting panel (1) rotates to be connected, second grip block (13) one side is provided with spliced pole (21), be provided with spacing post of rack (8) on rack (2), spacing post of rack (8) and spliced pole (21) respectively with the both ends of connecting rod (10) are connected, gear pole (3) top is provided with hand wheel (4).

3. The clamping device for multi-part machining for electric sparks as claimed in claim 2, wherein: and an insulating glue layer is coated on one end of the rotating arm (16) and the hand wheel (4).

4. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: the bottom plate (6) protrudes out of the clamping surface of the first clamping block (5).

5. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: the mounting plate (1) is provided with a groove (15) corresponding to the bottom plate (6).

6. The clamping device for multi-part machining for electric sparks as claimed in claim 5, wherein: the width of the groove (15) is larger than that of the bottom plate (6).

7. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: the rotating arm (16) and the hinged position of the mounting plate (1) are provided with a torsion spring (30), one end of the torsion spring (30) tightly pushes the mounting plate (1), and the other end of the torsion spring tightly pushes the rotating arm (16).

8. The multi-part machining clamping device for electric sparks as claimed in claim 2, wherein: the clamping unit still constructs including the tight spring in top, the tight mechanism in top is including pushing up tight spring (12), be provided with boss (11) on mounting panel (1), boss (11) are worn to locate in by spliced pole (21), spliced pole (21) are located boss (11) with be provided with spacing ring (31) in one section between second grip block (13), the tight spring in top (12) cover is located on spliced pole (21), push up tight spring (12) both ends and push up tight spacing ring (31) and boss (11) respectively, spliced pole (21) run through the slip of a stop nut (20) with spacing second grip block (13) is connected to one end screw of boss (11).

9. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: the mounting plate is characterized in that a limiting boss (14) is arranged on one side of the hinged position of the mounting plate (1) and the rotating arm (16), and the limiting boss (14) is used for limiting the rotating angle of the rotating arm (16).

10. The clamping device for multi-part machining for electric sparks as claimed in claim 1, wherein: and a liquid dropping hole (32) is formed in the bottom plate (6) corresponding to the deepest position of the clamping groove (7).