阅读说明：本技术 外模生产设备 (Outer mold production equipment ) 是由 候宝军 刘俊彪 娄助军 常俊杰 张德志 王正堂 于 2021-08-31 设计创作，主要内容包括：本发明涉及切割技术领域。公开了外模生产设备,包括机座、固定块和活动块,机座上设有慢走丝电火花线切割机和顶部开口的箱体,箱体的侧壁上设有用于慢走丝电火花线切割机的电极线通过的开口；箱体的内壁上设有支撑板,固定板固接在支撑板上；支撑板的侧壁上设有导向板,且导向板上滑动连接有滑板,滑板上设有夹紧板；还包括用于带动活动块向固定块方向移动的驱动机构和用于带动夹紧板向导向板方向移动的动力机构,且活动块的运动路径与夹紧板的运动路径垂直。本方案主要解决了目前在切割过程中,工件的一端被夹紧,工件的另一端悬空且未设置定位和支撑的结构,导致工件悬空的一端受到重力的作用始终会有下坠的趋势,进而影响切割效果。(The invention relates to the technical field of cutting. The outer mold production equipment comprises a machine base, a fixed block and a movable block, wherein the machine base is provided with a slow wire-moving electric spark wire cutting machine and a box body with an opening at the top; the inner wall of the box body is provided with a supporting plate, and the fixing plate is fixedly connected to the supporting plate; a guide plate is arranged on the side wall of the supporting plate, a sliding plate is connected on the guide plate in a sliding manner, and a clamping plate is arranged on the sliding plate; the clamping device is characterized by further comprising a driving mechanism for driving the movable block to move towards the fixed block and a power mechanism for driving the clamping plate to move towards the guide plate, and the moving path of the movable block is perpendicular to that of the clamping plate. The scheme mainly solves the problems that in the cutting process, one end of a workpiece is clamped tightly, the other end of the workpiece is suspended and is not provided with a positioning and supporting structure, so that the suspended end of the workpiece always tends to drop under the action of gravity, and the cutting effect is influenced.)

1. The outer mold production equipment comprises a machine base, a fixed block and a movable block, wherein the machine base is provided with a slow wire-moving electric spark wire cutting machine and a box body with an opening at the top, and the side wall of the box body is provided with an opening for an electrode wire of the slow wire-moving electric spark wire cutting machine to pass through; the method is characterized in that: the inner wall of the box body is provided with a supporting plate, and the fixing plate is fixedly connected to the supporting plate; a guide plate is arranged on the side wall of the supporting plate, a sliding plate is connected on the guide plate in a sliding manner, and a clamping plate is arranged on the sliding plate; the clamping device is characterized by further comprising a driving mechanism for driving the movable block to move towards the fixed block and a power mechanism for driving the clamping plate to move towards the guide plate, and the moving path of the movable block is perpendicular to that of the clamping plate.

2. The overmold production apparatus of claim 1, wherein: the driving mechanism comprises a motor fixedly connected with the inner wall of the box body, a screw rod rotatably connected with the fixed plate and a guide rod fixedly connected with the fixed plate, an output shaft of the motor is fixedly connected with the screw rod, a nut seat is in threaded connection with the screw rod and fixedly connected with the movable block, and the guide rod is in sliding connection with the nut seat.

3. The overmold production apparatus of claim 2, wherein: the power mechanism comprises a rotating shaft which is rotatably connected with the supporting plate and a rack which is fixedly connected with the sliding plate, a belt is sleeved between the rotating shaft and an output shaft of the motor, and a gear which is meshed with the rack is arranged on the rotating shaft.

4. The overmold production apparatus of claim 3, wherein: a cavity is arranged in the clamping plate, and a linkage plate is arranged in the cavity; the clamping plate is connected with a limiting block in a sliding way, and the limiting block is fixedly connected with the linkage plate; a limiting groove is formed in the inner wall of the box body, and one end, far away from the linkage plate, of the limiting block is connected with the limiting groove in a sliding mode; the clamping device also comprises a linkage part which drives the limiting block to move along with the movement of the clamping plate, and the movement direction of the limiting block is opposite to that of the clamping plate.

5. The overmold production apparatus of claim 4, wherein: the linkage part comprises a side plate fixedly connected with the limiting block and a U-shaped groove formed in the inner wall of the box body, a pull rope is arranged on the side plate, and the free end of the pull rope penetrates through the U-shaped groove and is fixedly connected with the clamping plate.

6. The overmold production apparatus of claim 5, wherein: a first wedge block is arranged in the cavity, a wedge surface used for abutting against the first wedge block is arranged at the top of the linkage plate, and the first wedge block is located on the motion track of the wedge surface.

7. The overmold production apparatus of claim 6, wherein: a plurality of recovery holes are formed in the side wall of the box body, an inner chamber is formed in the box body, and the inner chamber is communicated with the recovery holes and the limiting groove; auxiliary grooves are formed in the two sides of the inner chamber, second wedge blocks are connected in the auxiliary grooves in a sliding mode, springs are arranged between the second wedge blocks and the auxiliary grooves, auxiliary holes used for being communicated with the recovery holes are formed in the second wedge blocks, and the auxiliary holes and the recovery holes are arranged in a staggered mode; one end of the limiting block, which is far away from the cavity, is provided with a third wedge block for extruding the second wedge block; the bottom in the box body is provided with a groove, the side wall of the groove is communicated with a recovery pipe, the recovery pipe is communicated with a recovery hole, the recovery pipe is provided with a negative pressure fan, and the negative pressure fan is fixedly connected with the side wall of the box body.

Technical Field

The invention relates to the technical field of cutting.

Background

The electric spark slow-walking wire cutting machine tool is a process test instrument used in the field of mechanical engineering; in the field of wire cut electric discharge machines, only a slow wire cut electric discharge machine has an automatic wire threading function and is limited to a single-stroke copper wire threading technology.

At present, double-lug elliptical and cross external dies can be subjected to primary machining by a slow-moving wire electric discharge wire cutting machine tool, and the machining process involves clamping a workpiece to be machined; the traditional clamping mechanism comprises a fixed block, a movable block and a power part, wherein the power part drives the movable block to move towards the fixed block, so that a workpiece is clamped through the movable block and the fixed block; the movable block and the fixed block are used for clamping the end part of one end of the workpiece, so that the other end of the workpiece is suspended, and the electrode wire can conveniently cut the workpiece; in the actual cutting process, the suspended end of the workpiece is not provided with a positioning and supporting structure, so that the suspended end of the workpiece always tends to fall under the action of gravity, and the cutting effect is influenced.

Disclosure of Invention

The invention aims to provide external mold production equipment to solve the problem that in the cutting process, one end of a workpiece is clamped, the other end of the workpiece is suspended and is not provided with a positioning and supporting structure, so that the suspended end of the workpiece always tends to fall under the action of gravity, and the cutting effect is further influenced.

In order to achieve the above object, the basic scheme of the invention is as follows: the outer mold production equipment comprises a machine base, a fixed block and a movable block, wherein the machine base is provided with a slow wire-moving electric spark wire cutting machine and a box body with an opening at the top, and the side wall of the box body is provided with an opening for an electrode wire of the slow wire-moving electric spark wire cutting machine to pass through; the inner wall of the box body is provided with a supporting plate, and the fixing plate is fixedly connected to the supporting plate; a guide plate is arranged on the side wall of the supporting plate, a sliding plate is connected on the guide plate in a sliding manner, and a clamping plate is arranged on the sliding plate; the clamping device is characterized by further comprising a driving mechanism for driving the movable block to move towards the fixed block and a power mechanism for driving the clamping plate to move towards the guide plate, and the moving path of the movable block is perpendicular to that of the clamping plate.

The advantages of the basic scheme are: when the scheme is used, a workpiece is placed on the surface of the supporting plate, so that the workpiece is positioned between the fixed plate and the movable block, the workpiece is also positioned between the guide plate and the clamping plate, and the workpiece is also abutted against the fixed plate and the guide plate; the driving mechanism drives the movable block to move towards the fixed block, so that the movable block is abutted against the workpiece, namely, the workpiece is clamped through the movable block and the fixed block; the clamping plate is driven by the power mechanism to move towards the direction of the guide plate, so that the clamping plate is abutted against the workpiece, namely the workpiece is clamped by the clamping plate and the guide plate; after clamping the workpiece, cutting the workpiece by using an electrode wire of the slow-wire-moving electric spark wire cutting machine; compared with the prior art, the scheme has the advantages that the workpiece can be clamped through the guide plate and the clamping plate on the premise that the fixed block and the movable block clamp the workpiece, namely, one end of the workpiece, which is far away from the fixed block and the movable block, is clamped, so that the end of the workpiece, which is far away from the fixed block and the movable block, is prevented from falling down due to gravity; the scheme can clamp the workpiece from two directions, and has better positioning effect on the workpiece; in addition, the scheme can support the workpiece by clamping the workpiece through the guide plate and the clamping plate, so that one end, away from the movable block and the fixed block, of the workpiece is prevented from falling downwards due to gravity, and the cutting processing accuracy is improved.

Further, the driving mechanism comprises a motor fixedly connected with the inner wall of the box body, a screw rod rotatably connected with the fixed plate and a guide rod fixedly connected with the fixed plate, an output shaft of the motor is fixedly connected with the screw rod, a nut seat is in threaded connection with the screw rod and fixedly connected with the movable block, and the guide rod is in sliding connection with the nut seat.

Through the arrangement, the motor is started, the output shaft of the motor drives the screw rod to rotate, and the nut seat drives the movable block to move towards the fixed block due to the limitation of the guide rod on the nut seat; when the movable block supports against the workpiece, the motor stops working, namely the movable block is positioned, and therefore the workpiece is clamped through the movable block and the fixed block.

Furthermore, the power mechanism comprises a rotating shaft which is rotatably connected with the supporting plate and a rack which is fixedly connected with the sliding plate, a belt is sleeved between the rotating shaft and an output shaft of the motor, and a gear which is meshed with the rack is arranged on the rotating shaft.

Through the arrangement, during the rotation of the screw, the output shaft of the motor can drive the rotating shaft to rotate through the belt, the rotating shaft drives the gear to rotate, and the gear and the rack are meshed to drive the sliding plate to move, so that the sliding plate drives the clamping plate to move towards the direction of the guide plate; when the movable block and the fixed block clamp the workpiece, the clamping plate is abutted to the workpiece, namely the workpiece is clamped through the clamping plate and the guide plate.

Further, a cavity is arranged in the clamping plate, and a linkage plate is arranged in the cavity; the clamping plate is connected with a limiting block in a sliding way, and the limiting block is fixedly connected with the linkage plate; a limiting groove is formed in the inner wall of the box body, and one end, far away from the linkage plate, of the limiting block is connected with the limiting groove in a sliding mode; the clamping device also comprises a linkage part which drives the limiting block to move along with the movement of the clamping plate, and the movement direction of the limiting block is opposite to that of the clamping plate.

Through the arrangement, during the movement of the clamping plate, the clamping plate drives the limiting block to move towards the limiting groove through the linkage part, the limiting block drives the linkage plate to move synchronously, when the movable block and the fixed block clamp the workpiece, the linkage plate abuts against the inner wall of the cavity, and the movement directions of the linkage plate and the clamping plate are opposite, so that the clamping plate and the linkage plate generate mutually restricted acting forces to each other, and further the limiting effect on the clamping plate is enhanced, namely the limiting effect on the workpiece is enhanced; and the linkage plate plays a horizontal acting force on the clamping plate, so that the supporting effect on the clamping plate is enhanced, and the stability of supporting the clamping plate is improved.

Furthermore, the linkage part comprises a side plate fixedly connected with the limiting block and a U-shaped groove formed in the inner wall of the box body, a pull rope is arranged on the side plate, and the free end of the pull rope penetrates through the U-shaped groove and is fixedly connected with the clamping plate.

Through the arrangement, during the movement of the clamping plate, the clamping plate pulls the side plate to move towards the limiting groove through the pull rope, so that the side plate drives the limiting block to move towards the limiting groove, and the limiting block drives the linkage plate to synchronously move; when the movable block and the fixed block clamp a workpiece, the linkage plate abuts against the inner wall of the cavity, and the linkage plate and the clamping plate move in opposite directions, so that the limiting effect on the clamping plate can be enhanced through the abutting of the linkage plate and the inner wall of the cavity, and further the limiting effect on the workpiece is enhanced; and the linkage plate plays a horizontal acting force on the clamping plate, so that the supporting effect on the clamping plate is enhanced, and the stability of supporting the clamping plate is improved.

Furthermore, a first wedge block is arranged in the cavity, a wedge surface used for abutting against the first wedge block is arranged at the top of the linkage plate, and the first wedge block is located on the motion track of the wedge surface.

Through the arrangement, when the linkage plate abuts against the inner wall of the cavity, the wedge surface also abuts against the first wedge block, namely the linkage plate can generate upward acting force on the first wedge block through the wedge surface, so that the supporting effect on the clamping plate is enhanced, and the stability of supporting the clamping plate is improved.

Further, a plurality of recovery holes are formed in the side wall of the box body, an inner chamber is arranged in the box body, and the inner chamber is communicated with the recovery holes and the limiting groove; auxiliary grooves are formed in the two sides of the inner chamber, second wedge blocks are connected in the auxiliary grooves in a sliding mode, springs are arranged between the second wedge blocks and the auxiliary grooves, auxiliary holes used for being communicated with the recovery holes are formed in the second wedge blocks, and the auxiliary holes and the recovery holes are arranged in a staggered mode; one end of the limiting block, which is far away from the cavity, is provided with a third wedge block for extruding the second wedge block; the bottom in the box body is provided with a groove, the side wall of the groove is communicated with a recovery pipe, the recovery pipe is communicated with a recovery hole, the recovery pipe is provided with a negative pressure fan, and the negative pressure fan is fixedly connected with the side wall of the box body.

Through the arrangement, during the movement of the limiting block, the limiting block extrudes the second wedge block to move along the path of the auxiliary block through the third wedge block, and the spring is compressed; when the movable block and the fixed block clamp the workpiece, the auxiliary hole is communicated with the recovery hole, namely, the recovery pipe is communicated with the interior of the box body through the recovery hole and the auxiliary hole.

In the cutting process, the cooling liquid can continuously act on the cutting position, so that the cooling liquid is sputtered in the box body, and part of the cooling liquid can be directly collected into the groove; during the cutting process, still start negative pressure air fan simultaneously for remaining coolant liquid is collected to the recess in through recovery hole, auxiliary hole, recovery tube, is convenient for reuse, practices thrift the cost.

Drawings

FIG. 1 is a partial sectional view in a front view of a case in an embodiment of an exterior mold production apparatus of the present invention;

fig. 2 is a sectional view of the right side wall of the case in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a fixed block 1, a movable block 2, a box body 3, a supporting plate 4, a guide plate 5, a sliding plate 6, a clamping plate 7, a screw rod 8, a guide rod 9, a nut seat 10, a belt 11, a rack 12, a gear 13, a linkage plate 14, a limiting block 15, a side plate 16, a U-shaped groove 17, a pull rope 18, a first wedge block 19, a recovery hole 20, a second wedge block 21, a spring 22, an auxiliary hole 23, a third wedge block 24, a recovery pipe 25, a negative pressure fan 26 and a groove 27.

Examples

Substantially as shown in figures 1 and 2: the outer mold production equipment comprises a base, a fixed block 1 and a movable block 2, wherein the base is provided with a slow wire-moving electric spark wire cutting machine and a box body 3 with an opening at the top, and the side wall of the box body 3 is provided with an opening for an electrode wire of the slow wire-moving electric spark wire cutting machine to pass through.

A supporting plate 4 is fixedly connected to the inner wall of the box body 3, and a fixing plate is fixedly connected to the top of the supporting plate 4; a guide plate 5 is fixedly connected to the side wall of the support plate 4, one end of the guide plate 5 is higher than the support plate 4, and one end of the guide plate 5 is lower than the support plate 4; a sliding plate 6 is connected on the guide plate 5 in a sliding manner, and a clamping plate 7 is fixedly connected at one end of the sliding plate 6, which is far away from the guide plate 5; the clamping device further comprises a driving mechanism for driving the movable block 2 to move towards the fixed block 1 and a power mechanism for driving the clamping plate 7 to move towards the guide plate 5, and the moving path of the movable block 2 is perpendicular to the moving path of the clamping plate 7.

The driving mechanism comprises a motor fixedly connected with the inner wall of the box body 3, a screw 8 rotatably connected with the fixed plate and a guide rod 9 fixedly connected with the fixed plate, an output shaft of the motor is fixedly connected with the screw 8, a nut seat 10 is in threaded connection with the screw 8, the nut seat 10 is fixedly connected with the movable block 2, the guide rod 9 is in sliding connection with the nut seat 10, and the guide rod 9 is positioned above the screw 8. The power mechanism comprises a rotating shaft which is rotatably connected with the supporting plate 4 and a rack 12 which is fixedly connected with the top of the sliding plate 6, a belt 11 is sleeved between the rotating shaft and an output shaft of the motor, and a gear 13 which is meshed with the rack 12 is fixedly connected on the rotating shaft.

A cavity is arranged in the clamping plate 7, and a linkage plate 14 is arranged in the cavity; a limiting block 15 is connected on the clamping plate 7 in a sliding manner, and the limiting block 15 is fixedly connected with the linkage plate 14; a limiting groove is formed in the inner wall of the box body 3, and one end, far away from the linkage plate 14, of the limiting block 15 is connected with the limiting groove in a sliding mode; the clamping device also comprises a linkage part which drives the limiting block 15 to move along with the movement of the clamping plate 7, and the movement direction of the limiting block 15 is opposite to that of the clamping plate 7; the linkage part comprises a side plate 16 fixedly connected with the limiting block 15 and a U-shaped groove 17 formed in the inner wall of the box body 3, a pull rope 18 is fixedly connected to the side plate 16, and the free end of the pull rope 18 penetrates through the U-shaped groove 17 to be fixedly connected with the clamping plate 7. A first wedge block 19 is fixedly connected in the cavity, a wedge surface used for abutting against the first wedge block 19 is arranged at the top of the linkage plate 14, and the first wedge block 19 is located on the motion track of the wedge surface.

A plurality of recovery holes 20 are formed in the side wall of the box body 3, an inner chamber is formed in the box body 3, and the inner chamber is communicated with the recovery holes 20 and the limiting groove; auxiliary grooves are formed in the two sides of the inner chamber, a second wedge block 21 is connected in the auxiliary grooves in a sliding mode, a spring 22 is fixedly connected between the second wedge block 21 and the auxiliary grooves, auxiliary holes 23 used for being communicated with the recovery holes 20 are formed in the second wedge block 21, and the auxiliary holes 23 and the recovery holes 20 are arranged in a staggered mode; one end of the limiting block 15, which is far away from the cavity, is fixedly connected with a third wedge block 24 for extruding the second wedge block 21; the bottom in the box 3 is provided with a groove 27, the side wall of the groove 27 is communicated with a recovery pipe 25, the recovery pipe 25 is communicated with the recovery hole 20, the recovery pipe 25 is provided with a negative pressure fan 26, and the negative pressure fan 26 is fixedly connected with the side wall of the box 3.

The specific implementation process is as follows:

during the use, put the work piece on the surface of backup pad 4 for the work piece is located the below of screw rod 8, and the work piece is located between fixed plate and movable block 2 simultaneously, and the work piece still is located between deflector 5 and the grip block 7, and the work piece still offsets with fixed plate, deflector 5.

The motor is started, the output shaft of the motor drives the screw rod 8 to rotate, and the nut seat 10 drives the movable block 2 to move towards the fixed block 1 due to the limitation of the guide rod 9 on the nut seat 10; when the movable block 2 is abutted to the workpiece, the motor stops working, namely the movable block 2 is positioned, and therefore the workpiece is clamped through the movable block 2 and the fixed block 1.

During the rotation of the screw 8, the output shaft of the motor can drive the rotating shaft to rotate through the belt 11, the rotating shaft drives the gear 13 to rotate, and the sliding plate 6 is driven to move through the meshing of the gear 13 and the rack 12, so that the sliding plate 6 drives the clamping plate 7 to move towards the direction of the guide plate 5; when the movable block 2 and the fixed block 1 clamp a workpiece, the clamping plate 7 is abutted against the workpiece, namely the workpiece is clamped through the clamping plate 7 and the guide plate 5; therefore, the scheme can clamp the workpiece from two directions, and compared with the prior art, the scheme can support the workpiece by clamping the workpiece through the guide plate 5 and the clamping plate 7, so that one end of the workpiece, which is far away from the movable block 2 and the fixed block 1, is prevented from dropping downwards due to gravity, and the accuracy of cutting treatment is improved.

During the movement of the clamping plate 7, the clamping plate 7 pulls the side plate 16 to move towards the direction of the limiting groove through the pull rope 18, then the side plate 16 drives the limiting block 15 to move towards the direction of the limiting groove, and the limiting block 15 drives the linkage plate 14 to move synchronously, so that the wedge surface moves towards the direction of the first wedge block 19; when the movable block 2 and the fixed block 1 clamp a workpiece, the linkage plate 14 abuts against the inner wall of the cavity, and the linkage plate 14 and the clamping plate 7 move in opposite directions, so that the clamping plate 7 and the linkage plate 14 generate mutually restricted acting forces to each other, and further the limiting effect on the clamping plate 7 is enhanced, namely the limiting effect on the workpiece is enhanced; in addition, the linkage plate 14 exerts an acting force on the clamping plate 7 in the horizontal direction, so that the supporting effect on the clamping plate 7 is enhanced, and the supporting stability of the clamping plate 7 is improved.

When the linkage plate 14 abuts against the inner wall of the cavity, the wedge surface also abuts against the first wedge block 19, that is, the linkage plate 14 can generate an upward acting force on the first wedge block 19 through the wedge surface, so that the supporting effect on the clamping plate 7 is enhanced, and the supporting stability of the clamping plate 7 is improved.

During the movement of the stop block 15, the stop block 15 presses the second wedge 21 by the third wedge 24 to move along the path of the auxiliary block, and the spring 22 compresses; when the movable block 2 and the fixed block 1 clamp the workpiece, the auxiliary hole 23 is communicated with the recovery hole 20, i.e. the recovery pipe 25 is communicated with the interior of the box body 3 through the recovery hole 20 and the auxiliary hole 23.

After clamping the workpiece, cutting the workpiece by using an electrode wire of the slow-wire-moving wire electrical discharge machine, wherein cooling liquid can continuously act on a cutting part in the cutting process, so that the cooling liquid is splashed in the box body 3, and part of the cooling liquid can be directly collected into the groove 27; during the cutting process, the negative pressure fan 26 is started simultaneously, so that the residual cooling liquid is collected into the groove 27 through the recovery hole 20, the auxiliary hole 23 and the recovery pipe 25, the reuse is facilitated, and the cost is saved.

The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.