CN108405895A - A kind of spark-erosion machine tool frock clamp - Google Patents

Abstract

The invention relates to a tooling fixture for an electric discharge machine tool, which includes a base plate and a clamping device. The base plate is provided with a chute, and a clamping device is installed in the chute. The clamping device includes a No. 1 moving mechanism and a No. 2 moving mechanism. , the rotating mechanism and the clamping mechanism, the rotating mechanism includes a mounting frame, a rotating motor, a support frame, a rotating frame and a rotating column, and the clamping mechanism includes a working circular plate, a rotating motor, a driving gear, a driven gear, an adjusting column, a moving plate, Fixed clamping plate, telescopic clamping plate and rubber strip. The present invention can solve the problems of poor working stability, small use range and poor adjustability existing in the existing ring-shaped workpiece clamping process, can realize the function of automatic clamping of ring-shaped workpieces, and has high work stability, wide use range and adjustment Advantages such as flexibility.

Description

Tooling fixture for electric discharge machine tool

technical field

The invention relates to the field of fixture equipment, in particular to a fixture for electric discharge machine tools.

Background technique

EDM machine tool, also known as CNC EDM machine tool, EDM, spark machine, etc., is a kind of electrical processing equipment. When the Lazarinko couple in the former Soviet Union studied the phenomenon and causes of the damage of the switch contacts by spark discharge corrosion, they found that the instantaneous high temperature of the electric spark could melt and oxidize the local metal and be corroded, thus creating and inventing the electric discharge machining method . When processing a workpiece on a machine tool, in order to make the surface of the workpiece meet the technical requirements such as the size, geometric shape, and mutual position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned) and clamped (clamped) before processing. . However, most of the current tooling fixtures can only be used for a certain size of the ring workpiece when positioning the ring workpiece, and the scope of use is small. When it is necessary to process different positions on the surface of the ring workpiece, the staff needs to adjust the position Adjustment, the work efficiency is low, and there are certain potential safety hazards. In order to solve the above problems, the present invention provides a fixture for an electric discharge machine tool.

Contents of the invention

In order to make up for the deficiencies in the prior art, the present invention provides a tooling fixture for electric discharge machine tools, which can solve the problems of poor work stability, small use range and poor adjustability in the existing ring-shaped workpiece clamping process, and can realize ring-shaped workpiece clamping. The function of automatic clamping of the workpiece has the advantages of high working stability, wide application range and flexible adjustment.

The technical problem to be solved by the present invention is achieved by adopting the following technical solutions: a tooling fixture for an electric discharge machine tool, including a base plate and a clamping device, a chute is provided on the base plate, and a clamping device is installed in the chute; :

The clamping device includes No. 1 moving mechanism, No. 2 moving mechanism, rotating mechanism and clamping mechanism. No. 1 moving mechanism is installed on the left side of the chute, No. 2 moving mechanism is installed on the right side of the chute, No. 1 moving mechanism and The upper end of the No. 2 moving mechanism is equipped with a clamping mechanism, and the No. 2 moving mechanism is equipped with a rotating mechanism; after placing the ring-shaped workpiece on the clamping mechanism, the working position is adjusted through the No. 1 moving mechanism and the No. 2 moving mechanism. Until the distance between the two clamping mechanisms can meet the actual work needs of the workpiece, then the workpiece on the clamping mechanism is driven to rotate by the rotating mechanism, so as to process different positions of the workpiece, the adjustment is flexible and convenient, and the ring-shaped workpiece can be firmly fixed It is firmly fixed on the clamping mechanism, avoiding the impact on the normal work due to the position change of the workpiece, and improving the stability of the work.

The No. 2 moving mechanism includes the No. 2 electric skateboard, the No. 2 mounting plate, the No. 2 rotating column and the bump. The No. 2 electric skateboard is installed on the left side of the chute by sliding fit. The side wall of the No. 2 mounting plate is installed with the No. 2 rotating column through bearings, and the side wall of the No. 2 rotating column is evenly installed with bumps along its circumferential direction. The bumps are cylindrical in structure, and the number of bumps is six. There is a rotating mechanism engaged on the block; the clamping mechanism installed on the second moving mechanism is driven by the No. 2 electric skateboard to move to an appropriate position, so as to clamp the other end of the workpiece, and then under the connection of the bump, it is driven by the rotating mechanism. The clamping mechanism installed on the No. 2 moving mechanism rotates, thereby driving the workpiece to rotate, so as to process different positions of the workpiece.

The No. 1 moving mechanism includes a No. 1 electric skateboard, a No. 1 mounting plate and a No. 1 rotating column. The No. 1 electric skateboard is installed on the left side of the chute through a sliding fit. A No. 1 rotating column is installed on the side wall of the mounting plate through a bearing; the No. 1 electric slide plate drives the clamping mechanism installed on the No. 1 moving mechanism to move to an appropriate position, so as to clamp one end of the workpiece.

The rotating mechanism includes a mounting frame, a rotating motor, a support frame, a rotating frame and a rotating column. The mounting frame is installed on the No. 2 electric skateboard, and a rotating motor is installed on the upper end of the mounting frame through a motor base. The frame is installed on the upper end of the mounting frame, the output shaft of the rotating motor is connected with the lower end of the turret, the upper end of the turret is equipped with a rotating column, and a groove is opened on the side wall of the rotating column, and a protrusion is engaged in the groove; the turret is driven by the rotating motor The rotation column on the top rotates. When the groove on the side wall of the rotation column engages with the protrusion, the rotation column drives the No. 2 rotation column to rotate. When there is no protrusion in the groove to engage with it, the No. 2 rotation column does not follow The rotation of the rotating column rotates, so that the workpiece fixed by the clamping mechanism can rotate at a certain angle each time, so as to process the surface of the workpiece.

The clamping mechanism includes a working circular plate, a rotating motor, a driving gear, a driven gear, an adjustment column, a moving plate, a fixed clamping plate, a telescopic clamping plate and a rubber strip, and the clamping mechanism installed on the No. 1 moving mechanism The working disc in the center is connected with the No. 1 rotating column through bearings, the working disc in the clamping mechanism installed on the No. 2 moving mechanism is connected with the No. 2 rotating column through bearings, and the side wall of the working disc is passed A rotating motor is installed, the output shaft of the rotating motor is installed on the driving gear, the driving gear is close to the side wall of the working disc, the driving gear is engaged with the driven gear, and the driven gear is installed on the side wall of the working disc through the bearing. The side wall of the working circular plate is evenly provided with moving slots along its circumferential direction, and the moving plate is installed in the moving slot by sliding fit, and the side wall of the driven gear is evenly provided with adjusting slots, and the number of adjusting slots is the same as the number of moving slots , the adjustment slot is connected with the adjustment column through sliding fit, the adjustment column is installed on the moving plate, the fixed clamping plate is installed on the top of the moving plate, the telescopic clamping plate is installed on the side wall of the fixed clamping plate, the fixed clamping plate and the Rubber strips are evenly installed on the outer wall of the telescopic clamping plate, and the top of the fixed clamping plate and the top of the telescopic clamping plate are both arc-shaped structures; the driving gear is driven by the rotating motor to rotate, and the driving gear drives the secondary gear to rotate. During the rotation of the moving gear, the adjusting column slides in the adjusting groove, thereby driving the moving plate to move linearly in the moving groove, thereby controlling the distance from the top of the moving plate to the center of the working circular plate until the clamping plate and the telescopic clamp are fixed. The rubber strip installed on the outer wall of the holding plate is closely attached to the inner wall of the annular workpiece, thereby fixing the position of the annular workpiece, avoiding the impact on the normal work due to the change of the workpiece position, improving the stability of the work, and can be adjusted according to the inner diameter of the annular workpiece Adjust the actual size of the distance from the top of the moving plate to the center of the working circular plate to meet the working needs of different sizes of circular workpieces, expand the scope of use, and improve the practicability.

When working, the staff places the present invention on the machine tool, and places the ring-shaped workpiece on the clamping mechanism, and then adjusts the working position through the No. 1 moving mechanism and the No. 2 moving mechanism until the distance between the two clamping mechanisms can reach To meet the actual work needs of the workpiece, the rotating motor drives the driving gear to rotate, and the driving gear drives the driven gear to rotate. During the rotation of the driven gear, the adjusting column slides in the adjusting groove, thereby driving the moving plate to move Linear movement is carried out in the groove, thereby controlling the distance from the top of the moving plate to the center of the working circular plate until the rubber strip installed on the outer wall of the fixed clamping plate and the telescopic clamping plate is close to the inner wall of the ring workpiece, thereby adjusting the position of the ring workpiece It is fixed to avoid the impact on the normal work due to the position change of the workpiece. When it is necessary to process different positions of the ring-shaped workpiece, the rotating column on the turret is driven by the rotating motor to rotate. When the groove on the side wall of the rotating column When the protrusion is engaged, the rotating column drives the No. 2 rotating column to rotate. When there is no protrusion in the groove meshing with it, the No. 2 rotating column does not rotate with the rotation of the rotating column, so that the workpiece fixed by the clamping mechanism can be rotated every time. It can be rotated at a certain angle once to process the surface of the workpiece. The present invention can solve the problems of poor working stability, small use range and poor adjustment in the existing clamping process of the circular workpiece, and can realize automatic clamping of the circular workpiece function.

Compared with the prior art, the present invention has the following advantages:

1. The present invention can solve the problems of poor working stability, small use range and poor adjustability in the existing ring-shaped workpiece clamping process, and can realize the function of automatic clamping of ring-shaped workpieces, with high work stability and wide use range And the advantages of flexible adjustment;

2. The present invention is equipped with a clamping device. After the annular workpiece is placed on the clamping mechanism, the working position is adjusted through the No. 1 moving mechanism and the No. 2 moving mechanism until the distance between the two clamping mechanisms can meet the actual size of the workpiece. According to work needs, the workpiece on the clamping mechanism is driven by the rotating mechanism to rotate in order to process different positions of the workpiece. The adjustment is flexible and convenient, and the ring-shaped workpiece can be firmly fixed on the clamping mechanism to avoid the position of the workpiece being changed. It affects the normal progress of work and improves the stability of work;

3. The present invention is equipped with a clamping mechanism that can adjust the distance from the top of the moving plate to the center of the working circular plate according to the actual size of the inner diameter of the annular workpiece, so as to meet the working needs of annular workpieces of different sizes, expand the scope of use, and improve the practicability .

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the cooperation between the base plate, the No. 2 moving mechanism, the rotating mechanism and the clamping mechanism of the present invention;

Fig. 3 is a schematic view of the first structure between the bottom plate, No. 1 moving mechanism and clamping mechanism of the present invention;

Fig. 4 is a schematic diagram of the second structure between the base plate, the No. 1 moving mechanism and the clamping mechanism of the present invention.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

As shown in Figures 1 to 4, a tooling fixture for an electric discharge machine tool includes a base plate 1 and a clamping device 2, a chute is provided on the base plate 1, and a clamping device 2 is installed in the chute; wherein:

The clamping device 2 includes No. 1 moving mechanism 21, No. 2 moving mechanism 22, rotating mechanism 23 and clamping mechanism 24. No. 1 moving mechanism 21 is installed on the left side of the chute, and No. 2 moving mechanism 22 is installed on the right side of the chute. side, the upper ends of No. 1 moving mechanism 21 and No. 2 moving mechanism 22 are equipped with a clamping mechanism 24, and a rotating mechanism 23 is installed on the No. 2 moving mechanism 22; The moving mechanism 21 and No. 2 moving mechanism 22 adjust the working position until the distance between the two clamping mechanisms 24 can meet the actual work needs of the workpiece, and then the workpiece on the clamping mechanism 24 is driven by the rotating mechanism 23 to rotate, so that The different positions of the workpiece are processed, and the adjustment is flexible and convenient, and the ring-shaped workpiece can be firmly fixed on the clamping mechanism 24, so as to avoid the influence of the change of the workpiece position on the normal work, and improve the stability of the work.

The No. 2 moving mechanism 22 includes a No. 2 electric skateboard 221, a No. 2 mounting plate 222, a No. 2 rotating column 223 and a bump 224. The No. 2 electric skateboard 221 is installed on the left side of the chute by sliding fit. The No. 2 mounting plate 222 is installed on the 221 upper end, and the No. 2 rotating post 223 is installed on the No. 2 mounting plate 222 side wall by bearings, and the No. 2 rotating post 223 side wall is evenly equipped with projections 224 along its circumferential direction. 224 is a cylindrical structure, and the number of projections 224 is six, and the rotation mechanism 23 is engaged on the projection 224; the clamping mechanism 24 installed on the second moving mechanism 22 is driven by the second electric slide plate 221 to move to an appropriate position, so that the workpiece The other end is clamped, and then under the connection of the protrusion 224, the clamping mechanism 24 installed on the second moving mechanism 22 is driven by the rotating mechanism 23 to rotate, thereby driving the workpiece to rotate, so as to process different positions of the workpiece deal with.

The No. 1 moving mechanism 21 includes a No. 1 electric skateboard 211, a No. 1 mounting plate 212 and a No. 1 rotating column 213. The No. 1 electric skateboard 211 is installed on the left side of the chute by sliding fit. No. 1 mounting plate 212, No. 1 mounting plate 212 side wall is installed with No. 1 rotating column 213 by bearing; Drive the clamping mechanism 24 installed on No. 1 moving mechanism 21 to move to the appropriate position by No. 1 electric slide plate 211, so that one end of workpiece For clamping.

Described turning mechanism 23 comprises mounting frame 231, rotating motor 232, support frame 233, rotating frame 234 and rotating post 235, and mounting frame 231 is installed on No. 2 electric skateboard 221, and mounting frame 231 upper end is installed with rotating motor 232 through motor base. , the upper end of the rotating motor 232 is arranged with a supporting frame 233, the supporting frame 233 is installed on the upper end of the mounting frame 231, the output shaft of the rotating motor 232 is connected with the lower end of the rotating frame 234, and the rotating column 235 is installed at the upper end of the rotating frame 234, and the rotating column 235 is mounted on the side wall Be provided with groove, be engaged with projection 224 in the groove; Drive the rotation column 235 on the turret 234 to rotate by rotating motor 232, when the groove that offers on the side wall of rotation column 235 is engaged with projection 224, the rotation column 235 drives the No. 2 rotating column 223 to rotate, when there is no protrusion 224 in the groove to engage with it, the No. 2 rotating column 223 does not rotate with the rotation of the rotating column 235, so that the workpiece fixed by the clamping mechanism 24 can be rotated every time. Rotate at a certain angle to process the surface of the workpiece.

The clamping mechanism 24 includes a working circular plate 241, a rotating motor 242, a driving gear 243, a driven gear 244, an adjustment column 245, a moving plate 246, a fixed clamping plate 247, a telescopic clamping plate 248 and a rubber strip 249. The working circular plate 241 in the clamping mechanism 24 on the No. 1 moving mechanism 21 is connected with the No. 1 rotating column 213 by bearing, and the working circular plate 241 in the clamping mechanism 24 on the No. 2 moving mechanism 22 passes through the bearing. Connected with the No. 2 rotating column 223, a rotating motor 242 is installed on the side wall of the working circular plate 241 through a motor base, and the output shaft of the rotating motor 242 is installed on the driving gear 243, and the driving gear 243 is closely attached to the side wall of the working circular plate 241 , the driving gear 243 is meshed with a driven gear 244, and the driven gear 244 is installed on the side wall of the working circular plate 241 through a bearing. The sliding fit mode is equipped with a moving plate 246, and the driven gear 244 side wall is uniformly provided with adjustment grooves, and the number of the adjustment grooves is the same as the number of the moving grooves. The adjustment groove is connected with the adjustment column 245 through the sliding fit mode, and the adjustment column 245 is installed on the On the mobile plate 246, a fixed clamping plate 247 is installed on the top of the mobile plate 246, and a telescopic clamping plate 248 is installed on the side wall of the fixed clamping plate 247. The rubber strip 249, the top of the fixed clamping plate 247 and the top of the telescopic clamping plate 248 are arc-shaped structures; the driving gear 243 is driven by the rotating motor 242 to rotate, and the driving gear 243 drives the driven gear to rotate, and the driven gear 244 rotates During the process, the adjustment column 245 slides in the adjustment groove, thereby driving the moving plate 246 to perform linear motion in the moving groove, thereby controlling the distance from the top of the moving plate 246 to the center of the working circular plate 241 until the fixed clamping plate 247 and The rubber strip 249 installed on the outer wall of the telescopic clamping plate 248 is close to the inner wall of the annular workpiece, thereby fixing the position of the annular workpiece, avoiding the change of the workpiece position and affecting the normal operation, improving the stability of the work, and can According to the actual size of the inner diameter of the annular workpiece, the distance from the top of the moving plate 246 to the center of the working circular plate 241 is adjusted to meet the working needs of annular workpieces of different sizes, expand the scope of use, and improve the practicality.

During work, the staff places the present invention on the machine tool, and places the annular workpiece on the clamping mechanism 24, and then adjusts the working position through the No. 1 moving mechanism 21 and the No. 2 moving mechanism 22 until the two clamping mechanisms 24 spacing can meet the actual work needs of the workpiece, then the driving gear 243 is driven by the rotating motor 242 to rotate, and the driving gear 243 drives the driven gear to rotate. During the rotation of the driven gear 244, the adjustment column 245 is in the adjustment groove Sliding, thereby driving the moving plate 246 to move linearly in the moving groove, thereby controlling the distance from the top of the moving plate 246 to the center of the working circular plate 241, until the rubber strip installed on the outer wall of the fixed clamping plate 247 and the telescopic clamping plate 248 249 is closely attached to the inner wall of the annular workpiece, thereby fixing the position of the annular workpiece, avoiding the influence of the normal operation due to the change of the workpiece position, when it is necessary to process different positions of the annular workpiece, the turret 234 is driven by the rotating motor 232 The rotating post 235 on the top rotates. When the groove provided on the side wall of the rotating post 235 is engaged with the protrusion 224, the rotating post 235 drives the No. 2 rotating post 223 to rotate. When there is no protrusion 224 in the groove to engage with it , the second rotation column 223 does not rotate with the rotation of the rotation column 235, so that the workpiece fixed by the clamping mechanism 24 can rotate at a certain angle each time, so as to process the surface of the workpiece. The present invention solves the problem of the existing annular workpiece clamping Problems such as poor working stability, small use range and poor adjustability existed in the process, and the function of automatic clamping of ring-shaped workpieces was realized and the goal was achieved.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the specification only illustrate the principles of the present invention, and without departing from the spirit and scope of the present invention, the present invention will also There are various changes and improvements which fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A tooling fixture for an electric discharge machine tool, comprising a base plate (1) and a clamping device (2), characterized in that: the base plate (1) is provided with a chute, and the clamping device (2) is installed in the chute );in: The clamping device (2) includes No. 1 moving mechanism (21), No. 2 moving mechanism (22), rotating mechanism (23) and clamping mechanism (24), and No. 1 moving mechanism (21) is installed on the left side of the chute. side, the No. 2 mobile mechanism (22) is installed on the right side of the chute, the upper ends of the No. 1 mobile mechanism (21) and the No. 2 mobile mechanism (22) are equipped with clamping mechanisms (24), and the No. 2 mobile mechanism (22) Rotating mechanism (23) is installed on it; The No. 2 moving mechanism (22) includes the No. 2 electric skateboard (221), the No. 2 mounting plate (222), the No. 2 rotating column (223) and the projection (224), and the No. 2 electric skateboard (221) is fitted by sliding installed on the left side of the chute, No. 2 mounting plate (222) is installed on the upper end of No. 2 electric skateboard (221), and No. 2 rotating column (223) is installed on the side wall of No. Lugs (224) are evenly installed on the side wall of the rotating column (223) along its circumferential direction, and a rotating mechanism (23) is engaged with the lugs (224); The bumps (224) are cylindrical structures, and the number of bumps (224) is six. 2. A fixture for an electric discharge machine tool according to claim 1, characterized in that: the No. 1 moving mechanism (21) includes a No. 1 electric slide plate (211), a No. 1 mounting plate (212) and a No. 1 The rotating column (213), the No. 1 electric skateboard (211) are installed on the left side of the chute by sliding fit, the No. 1 electric skateboard (211) is equipped with a No. 1 mounting plate (212), and the No. 1 mounting plate (212) side wall A No. 1 rotating column (213) is installed by bearing. 3. A kind of fixture for electric discharge machine tool according to claim 1, characterized in that: the rotating mechanism (23) comprises a mounting frame (231), a rotating motor (232), a support frame (233), a turret (234) and rotating column (235), mounting frame (231) is installed on No. two electric skateboards (221), mounting frame (231) upper end is equipped with rotating motor (232) by motor base, rotating motor (232) upper end layout Support frame (233) is arranged, and support frame (233) is installed on mounting frame (231) upper end, and rotating motor (232) output shaft is connected with turret (234) lower end, and turret (234) upper end is equipped with rotating post (235) ), a groove is provided on the side wall of the rotating column (235), and a projection (224) is engaged in the groove. 4. A tooling fixture for an electric discharge machine according to claim 1, characterized in that: the clamping mechanism (24) includes a working circular plate (241), a rotating motor (242), a driving gear (243), Driven gear (244), adjusting column (245), moving plate (246), fixed clamping plate (247), telescopic clamping plate (248) and rubber strip (249), are installed in No. 1 moving mechanism (21) The working disc (241) in the clamping mechanism (24) on the top is connected with the No. 1 rotating post (213) through the bearing, and the working circle in the clamping mechanism (24) installed on the No. 2 moving mechanism (22) Plate (241) is connected with No. 2 rotating column (223) by bearing, and rotating motor (242) is installed on the side wall of working circular plate (241) by motor seat, and rotating motor (242) output shaft is installed on driving gear (243 ), the driving gear (243) is close to the side wall of the working disc (241), the driving gear (243) is meshed with the driven gear (244), and the driven gear (244) is mounted on the working disc ( 241) on the side wall, the side wall of the working circular plate (241) is uniformly provided with a moving groove along its circumferential direction, and a moving plate (246) is installed in the moving groove through a sliding fit, and the driven gear (244) is mounted on the side wall Adjusting grooves are evenly opened, and the number of adjusting grooves is the same as the number of moving grooves, and the adjusting columns (245) are connected in the adjusting grooves by sliding fit, and the adjusting columns (245) are installed on the moving plate (246), and the moving plate (246) A fixed clamping plate (247) is installed on the top, and a telescopic clamping plate (248) is installed on the side wall of the fixed clamping plate (247). Rubber strips (249) are installed. 5. A fixture for an electric discharge machine tool according to claim 4, characterized in that: the top of the fixed clamping plate (247) and the top of the telescopic clamping plate (248) are arc-shaped structures.