CN113193458A - Pressing knife die set for cable outer conductor press - Google Patents

Abstract

The invention discloses a pressing knife die set for a cable outer conductor press, relates to a cable outer conductor press, and aims to solve the problem that the pressing knife die set does not have the capability of prepressing and positioning an outer conductor, so that the hidden trouble that the installation accuracy of the outer conductor is poor exists, and the technical scheme is as follows: a pressing cutter die set for a cable outer conductor press comprises a base, a lifting seat, a lower cutter die holder and an upper cutter set, wherein the lower cutter die holder comprises a convex end face abutting table, a convex circular arc accommodating groove, a deformation stress table and a shearing workpiece, and the deformation stress table is provided with a positioning chamfer; go up the knife tackle including pressing from both sides the cutter in advance, dodging the cutter, the deformation is pressed the platform and is cut off and push away the platform, dodges the cutter and is provided with dodges the notch. According to the pressing knife die set for the cable outer conductor press, the cable outer conductor can be pre-cut, pre-positioned and pre-fixed only by adjusting the descending process of the lifting seat, the installation precision of the outer conductor is effectively improved, and the rejection rate is reduced.

Description

Pressing knife die set for cable outer conductor press

Technical Field

The invention relates to a cable outer conductor press, in particular to a pressing knife die set for the cable outer conductor press.

Background

The cable is a wire used for transmitting power or information from one end to the other end, and two ends of the cable are respectively required to be connected with the generating equipment and the receiving equipment, so that the two ends of the cable are both required to be fixedly provided with conductors.

Regarding the outer conductor press, the applicant applies for a conveying, cutting and crimping integrated device for the cable end disclosed in chinese patent with publication number CN111082280A, and the technical points are as follows: the device comprises a feeding mechanism, a splicing mechanism, a stamping mechanism, a material belt and a shearing mechanism, wherein through holes are formed in the material belt at equal intervals along the length direction; the feeding mechanism comprises a male head material tray, a paper winding material tray and a pushing assembly, wherein the pushing assembly comprises a straight groove seat, a forward moving rail, a forward moving sliding block, a hook piece and a forward pushing cylinder; the shearing mechanism comprises a shearing machine framework, a shearing cylinder and a shearing pressing die.

The technical scheme also discloses that the pressing mechanism comprises a pressing cylinder, a lifting seat driven by the pressing cylinder and a pressing die fixed on the lifting seat, and the bottom end of the pressing die presses the deformation plate to be tightly abutted against the straight groove seat; the pressing die and the straight groove seat in the scheme are the pressing knife die set to be protected by the application, and meanwhile, the pressing die and the straight groove seat in the scheme do not have the capability of prepressing and positioning the outer conductor, so that the hidden danger of poor installation accuracy of the outer conductor exists; therefore, a new solution is needed to solve this problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a pressing knife die set for a cable outer conductor press, which can complete pre-shearing, pre-positioning and pre-fixing of a cable outer conductor only by adjusting the descending process of a lifting seat, effectively improve the installation precision of the outer conductor and reduce the rejection rate.

The technical purpose of the invention is realized by the following technical scheme: a knife pressing die set for a cable outer conductor press comprises a base, a lifting seat, a lower knife die holder and an upper knife set, wherein the lifting seat is vertically opposite to the base, the lower knife die holder is arranged on the base, the upper knife set is arranged on the lifting seat, the lower knife die holder comprises a convex end face abutting table, a convex circular arc accommodating groove, a deformation stress table and a shearing workpiece which are sequentially arranged, and a positioning chamfer is arranged on one side, which is abutted to the convex circular arc accommodating groove, of the upper end face of the deformation stress table; go up the knife tackle including with protruding round end face butt joint platform complex clamp cutter in advance, just to dodging the cutter of protruding circular arc holding tank, just to the deformation pressure platform of deformation atress platform to and be used for the linkage to cut off the cutting of work piece and push away the platform, dodge the cutter and be provided with the diameter and be greater than the notch of dodging of outer conductor protruding circle.

By adopting the technical scheme, when the cable outer conductor press works specifically by applying the press, the material belt carrying outer conductor enters the lower cutter die holder, the lifting seat is driven to descend, when the lifting seat descends to a first preset height, the shearing pushing platform presses the shearing workpiece, so that the shearing workpiece starts to be pushed to move downwards, and when the lifting seat descends to a second preset height, the shearing workpiece finishes shearing the outer conductor and the material belt; the outer conductor can generate certain vibration at the moment, so that under the combined action of the amplitude and the positioning chamfer, the outer conductor moves along the central axis of the lower cutter die holder until the convex circle of the outer conductor is embedded into the convex circular arc accommodating groove, and the two ends of the circular surface of the outer conductor respectively abut against the convex circular end surface abutting table and the positioning chamfer, so that the positioning of the outer conductor is completed; when the lifting seat is driven to descend to a third preset height, the pre-clamping cutter is abutted against the outer conductor and matched with the convex end face abutting table to finish pre-clamping and fixing the outer conductor; at the moment, the driving of the lifting seat is suspended, and the shearing workpiece completely leaves the horizontal projection range of the outer conductor, so that the cable can be normally inserted into the outer conductor; after the cable is inserted into the outer conductor, the lifting seat is restarted to be driven downwards until the cable is lowered to a fourth preset height, the deformation pressing platform is matched with the deformation stress platform to complete pressing deformation on the corresponding part of the outer conductor, and finally the lifting seat is lifted to reset to withdraw from the cable which completes the installation of the outer conductor; to sum up, the application this application replaces prior art's hold-down die and straight flute seat, only needs to adjust the decline process of lift seat, can accomplish to cut in advance, prepositioning and fix in advance of cable outer conductor, effectively improves the installation accuracy reduction rejection rate of outer conductor.

The invention is further configured to: the caulking groove has been seted up to the base upper surface, protruding circular arc holding tank, deformation atress platform and cut the work piece and gomphosis in the caulking groove in proper order, the base is in the adjustable fixing base that is fixed with of caulking groove, and the level runs through protruding circular arc holding tank, deformation atress platform and cut the work piece and extend into the fixing base and seted up two at least assembly screw.

Through adopting above-mentioned technical scheme, realize protruding circular arc holding tank, deformation atress platform and cut the independent processing of work piece three, effectively reduce the production degree of difficulty to by the base and the installation position of fixing base cooperation formation L shape, effectively improve the structural strength after the assembly.

The invention is further configured to: the fixed seat is provided with a vertical notch, and the convex end face abutting platform is arranged in the vertical notch in a lifting manner; the convex end face abutting table is characterized in that one side of the convex end face abutting table is provided with an umbrella-shaped hole, the fixing seat is in threaded fit with a first abutting bolt aligned to the umbrella-shaped hole at the same side, and the fixing seat is in threaded fit with a second abutting bolt in abutting fit with the side face of the convex end face abutting table.

By adopting the technical scheme, the convex end surface abutting table is installed by utilizing the vertical notch, so that the lifting adjusting capacity is given to the convex end surface abutting table, the convex end surface abutting table can better complete the two technical requirements of positioning the convex end of the outer conductor and pre-clamping and fixing the outer conductor by matching with the pre-clamping tool; the first abutting bolt abuts against different parts of the umbrella-shaped hole to achieve height adjustment of the convex end face abutting table, and it needs to be stated that the first abutting bolt should abut against the upper semi-arc face of the umbrella-shaped hole to enable the convex end face abutting table to have larger capacity of resisting longitudinal pressure, and the second abutting bolt is additionally arranged to abut against the side face of the convex end face abutting table, so that installation strength of the convex end face abutting table is further improved.

The invention is further configured to: the fixing seat is provided with an adjusting elongated slot, the base is provided with at least three adjusting screw holes corresponding to the adjusting elongated slot, any adjusting screw hole is in threaded fit with a compression bolt, the threaded section of the compression bolt vertically penetrates through the adjusting elongated slot, and the nut part of the compression bolt is compressed on the upper surface of the fixing seat.

Through adopting above-mentioned technical scheme, when the position of fixing base needs to be adjusted for when the adjustment die holder down, unscrew clamp bolt can slide the fixing base and adjust, and after accomplishing the regulation, screw up clamp bolt can restrict the mobility of fixing base, need explain, adopt an adjustment elongated slot of three regulation screw cooperation to every regulation screw all can give the certain control range of fixing base, effectively improve the adjustable range of fixing base.

The invention is further configured to: the shearing workpiece comprises a tool block fixed on the base, a shearing block vertically connected to the tool block, and an upward pushing and contracting spring arranged between the bottom surface of the shearing block and the base, wherein the shearing block horizontally penetrates through a shearing clamping opening, and the opening of the shearing clamping opening faces the deformation stress platform.

By adopting the technical scheme, the shearing clamp opening of the shearing block is aligned to the upper edge of one side of the deformation stress platform in the initial state, so that the material belt of the outer conductor can be ensured to smoothly enter the shearing clamp opening, when the shearing block is pushed by the shearing and pushing platform to move downwards, the shearing clamp opening and the upper edge of one side of the deformation stress platform form shearing force, so that the technical requirement of shearing the outer conductor and the material belt is met, when the shearing and pushing platform stops applying downward force to the shearing block, the elastic potential energy is released by the upper pushing and pressing compression spring, the shearing block is pushed to reset in time, and the subsequent material belt is waited to enter the shearing clamp opening; to sum up, cut the lift of work piece linkage cooperation lift seat, can cut material area and outer conductor, need not additionally to provide kinetic energy, not only harmony is better and control is more convenient.

The invention is further configured to: the upper surface of the shearing block is provided with a first guide conical groove, the shearing and pushing table is matched with a telescopic block in a sliding mode, and the telescopic block is provided with a second guide conical groove opposite to the first guide conical groove.

Through adopting above-mentioned technical scheme, add first direction taper groove and second direction taper groove to the realization is to the guide of cable tip, inserts outer conductor smoothly for the cable tip and facilitates.

The invention is further configured to: the telescopic block is provided with a hook head, and the shearing and pushing table is provided with a hook groove for the hook head to slide; a push-down compression spring is arranged between the hook head and the hook groove; the bottom end of the telescopic block is provided with two supporting feet, and the two supporting feet are in butt fit with the upper surface of the tool block.

By adopting the technical scheme, the downward moving range of the telescopic block is limited by the matching between the hook head and the hook groove, so that the telescopic block is prevented from being separated from the shearing and pushing table when the lifting seat is lifted; a push-down compression spring is additionally arranged, so that the hidden danger that the telescopic block is pushed to rise by the end part of the cable is reduced, and the actual guiding effect of the second guiding conical groove is improved; the telescopic block is additionally provided with a supporting leg which is abutted against the tool block, so that the telescopic block is prevented from descending excessively along with the shearing and pushing table.

The invention is further configured to: the lifting seat is provided with a cutter installing notch, the avoiding cutter, the deformation pressing platform and the shearing and pushing platform are sequentially embedded in the cutter installing notch, and the shearing and pushing platform, the deformation pressing platform and the avoiding cutter sequentially penetrate through the cutter installing notch, extend into the lifting seat and are in threaded fit with a cutter installing bolt.

Through adopting above-mentioned technical scheme, cutter, deformation pressure platform and cut the platform that pushes away are dodged in independent processing production, and the gomphosis installation is carried out to rethread dress sword notch, utilizes the dress sword bolt to consolidate at last, effectively improves the convenience of production to have the ability of changing a certain part of knife tackle alone, effectively reduce the in-service use cost of this application.

The invention is further configured to: the bottom of the cutter containing notch is provided with an inner notch, the pre-clamping cutter is provided with a vertical sliding plate which is matched with the inner notch in a sliding manner, and a pre-pressing compression spring is arranged between the upper end face of the pre-clamping cutter and the lower end face of the lifting seat.

By adopting the technical scheme, the pre-clamping tool is endowed with the telescopic capacity by utilizing the matching between the inner notch and the vertical sliding plate, so that the hidden danger that the outer conductor is clamped and damaged is effectively reduced on the premise of pre-pressing and clamping the outer conductor; and the elastic potential energy of the prepressing compression spring is utilized to provide a downward thrust for the pre-clamping cutter, so that the prepressing clamping effect is improved.

The invention is further configured to: the vertical sliding plate is provided with a stroke groove in a penetrating mode, and the cutter mounting bolt penetrates through the stroke groove in a clearance mode.

Through adopting above-mentioned technical scheme, vertical slide adds stroke groove and dress sword bolt cooperation to realize the injecing to its sliding range, and then the home range who injects the double-layered cutter in advance.

In conclusion, the invention has the following beneficial effects: the application of the cable outer conductor pre-shearing device replaces a compression die and a straight groove seat in the prior art, and only the descending process of the lifting seat is required to be adjusted, so that the pre-shearing, pre-positioning and pre-fixing of the cable outer conductor can be completed, the installation precision of the outer conductor is effectively improved, and the rejection rate is reduced; the independent processing of the convex circular arc accommodating groove, the deformation stress table and the shearing workpiece is realized, and the production difficulty is effectively reduced; the convex end surface abutting table is installed by utilizing the vertical notch, so that the lifting adjusting capability is given to the vertical notch, the two technical requirements of better positioning the convex end of the outer conductor and pre-clamping and fixing the outer conductor by matching with a pre-clamping cutter are met; three adjusting screw holes are matched with one adjusting long groove, so that each adjusting screw hole can endow the fixed seat with a certain adjusting range, and the adjustable range of the fixed seat is effectively improved; the shearing workpiece is linked and matched with the lifting of the lifting seat, so that the material belt and the outer conductor can be sheared without providing additional kinetic energy, the coordination is better, and the control is more convenient; a first guide conical groove and a second guide conical groove are additionally arranged, so that the end part of the cable is guided, and the smooth insertion of the end part of the cable into an outer conductor is facilitated; the downward moving range of the telescopic block is limited by the matching between the hook head and the hook groove, so that the telescopic block is prevented from being separated from the shearing and pushing table when the lifting seat is lifted; a push-down compression spring is additionally arranged, so that the hidden danger that the telescopic block is pushed to rise by the end part of the cable is reduced, and the actual guiding effect of the second guiding conical groove is improved; the cutter avoiding, the deformation pressing table and the shearing and pushing table are independently machined and produced, then the cutter avoiding, the deformation pressing table and the shearing and pushing table are embedded and installed through the cutter installing notches, and finally the cutter installing bolts are used for reinforcing, so that the production convenience is effectively improved, the capability of independently replacing a certain part of the upper cutter group is realized, and the actual use cost of the device is effectively reduced; the pre-clamping tool is endowed with the telescopic capacity by utilizing the matching between the inner notch and the vertical sliding plate, so that the hidden danger that the outer conductor is clamped and damaged is effectively reduced on the premise of pre-pressing and clamping the outer conductor; the vertical sliding plate is additionally provided with a stroke groove which is matched with a cutter mounting bolt, so that the sliding range of the vertical sliding plate is limited, and the moving range of the pre-clamping cutter is limited.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an exploded view of the lift base and upper blade assembly of the present application;

FIG. 3 is an exploded view of the lift base and upper blade assembly of the present application from another perspective;

FIG. 4 is an exploded view of the base and lower die holder of the present application;

FIG. 5 is an exploded view of the base and lower blade holder of the present application from another perspective

FIG. 6 is a schematic structural view of a base portion of the present application, with the cable outer conductor positioned above the lower die holder;

FIG. 7 is a view of the assembled structure of the convex end surface abutting table and the fixing base of the present application, wherein the fixing base is partially cut away for the convenience of illustration;

FIG. 8 is a drawing showing the relationship between the cutting workpiece, the cutting table and the retractable block, in which the cutting table and the retractable block are separated for convenience of illustration;

fig. 9 is a diagram illustrating the assembly relationship between the lifting seat and the pre-clamping tool according to the present application.

Description of the drawings: 1. a base; 11. the convex end surface abuts against the platform; 12. a convex circular arc accommodating groove; 13. a deformation stress platform; 14. cutting off the workpiece; 15. positioning and chamfering; 16. caulking grooves; 17. a fixed seat; 18. assembling a screw hole; 19. a vertical slot; 20. an umbrella-shaped hole; 21. a first holding bolt; 22. a second holding bolt; 23. adjusting the long groove; 24. adjusting the screw hole; 25. a hold-down bolt; 26. a tooling block; 27. cutting off the blocks; 28. the upper push compression spring; 29. cutting off the clamping opening; 30. a first guide cone groove; 3. a lifting seat; 31. pre-clamping a cutter; 32. avoiding the cutter; 33. a deformation pressing table; 34. cutting off the pushing platform; 35. avoiding the notch; 36. a telescopic block; 37. a second guide cone groove; 38. hooking the head; 39. hooking a groove; 40. pushing down the compression spring; 41. a brace; 42. a cutter installing notch; 43. installing a cutter bolt; 44. an inner notch; 45. a vertical slide plate; 46. prepressing a compression spring; 47. a travel slot.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The die set of the pressing knife for the cable outer conductor press is shown in fig. 1, fig. 2 and fig. 4 and comprises a base 1, a lifting seat 3 vertically opposite to the base 1, a lower die holder arranged on the base 1 and an upper die set arranged on the lifting seat 3, wherein the lower die holder comprises a convex end surface abutting table 11, a convex circular arc accommodating groove 12, a deformation stress table 13 and a shearing workpiece 14 which are sequentially arranged, and a positioning chamfer 15 is formed on one side of the upper end surface of the deformation stress table 13, which is abutted to the convex circular arc accommodating groove 12; the upper tool set comprises a pre-clamping tool 31 matched with the convex end face abutting table 11, an avoiding tool 32 right opposite to the convex circular arc accommodating groove 12, a deformation pressing table 33 right opposite to the deformation stress table 13 and a shearing pushing table 34 used for shearing the workpiece 14 in a linkage mode, wherein the avoiding tool 32 is provided with an avoiding notch 35 with the diameter larger than that of the convex circle of the outer conductor.

When the cable outer conductor press works specifically by applying the application, the material belt carrying outer conductor enters the lower cutter die holder, the lifting seat 3 is driven to descend, when the lifting seat descends to a first preset height, the shearing and pushing table 34 presses the shearing workpiece 14, so that the shearing workpiece 14 starts to be pushed to move downwards, and when the lifting seat 3 descends to a second preset height, the shearing workpiece 14 finishes shearing the outer conductor and the material belt; the outer conductor can generate certain vibration at the moment, so that under the combined action of the amplitude and the positioning chamfer 15, the outer conductor moves along the central axis of the lower cutter die holder until the convex circle of the outer conductor is embedded into the convex circular arc accommodating groove 12, and the two ends of the circular surface of the outer conductor respectively abut against the convex end surface abutting table 11 and the positioning chamfer 15, so that the positioning of the outer conductor is completed; when the lifting seat 3 is driven to descend to a third preset height, the pre-clamping tool 31 abuts against the outer conductor and completes pre-clamping and fixing of the outer conductor by matching with the convex end face abutting table 11; at this time, the driving of the elevating base 3 is suspended, and the shearing work 14 has completely left the horizontal projection range of the outer conductor, so that the cable can be normally inserted into the outer conductor; after the cable is inserted into the outer conductor, the lifting seat 3 is restarted to drive downwards until the cable is lowered to a fourth preset height, the deformation pressing platform 33 is matched with the deformation stress platform 13 to complete the pressing deformation of the corresponding part of the outer conductor, and finally the lifting seat 3 is lifted and reset to withdraw from the cable which completes the installation of the outer conductor; to sum up, the application this application replaces prior art's hold-down die and straight flute seat, only needs to adjust the descending process of lift seat 3, can accomplish to cut in advance, prepositioning and fix in advance of cable outer conductor, effectively improves the installation accuracy reduction rejection rate of outer conductor.

The lower tool holder is mounted on the base 1 in the following way, as shown in fig. 4, 5 and 6, the caulking groove 16 is formed in the upper surface of the base 1, and the convex circular arc accommodating groove 12, the deformation stress platform 13 and the shearing workpiece 14 are sequentially embedded in the caulking groove 16, so that the independent processing of the convex circular arc accommodating groove 12, the deformation stress platform 13 and the shearing workpiece 14 is realized, and the production difficulty is effectively reduced; the base 1 is adjustably fixed with a fixing seat 17 in an embedded groove 16, the level penetrates through the convex circular arc accommodating groove 12, the deformation stress platform 13, the shearing workpiece 14 and extends into the fixing seat 17 to be provided with at least two assembling screw holes 18, so that the base 1 and the fixing seat 17 are matched to form an L-shaped mounting position, the assembling screw holes 18 are utilized for reinforcement, and the structural strength after assembly is effectively improved.

The convex end surface abutting table 11 not only needs to play a role in positioning an outer conductor, but also needs to be matched with the pre-clamping tool 31 to pre-clamp and fix the outer conductor, so that the requirement on the installation accuracy of the convex end surface abutting table 11 is higher, for this reason, as shown in fig. 6 and 7, the fixed seat 17 is provided with a vertical notch 19, and the convex end surface abutting table 11 can be installed in the vertical notch 19 in a lifting manner, so that the convex end surface abutting table 11 is endowed with lifting adjustment capability, and the convex end surface abutting table can better complete the positioning of one end of the convex circle of the outer conductor and can be matched with the pre-clamping tool 31 to pre-clamp and fix the outer conductor; the specific adjusting structure of the convex end surface abutting table 11 is as follows, one side of the convex end surface abutting table 11 is provided with an umbrella-shaped hole 20, the same side of the fixed seat 17 is in threaded fit with a first abutting bolt 21 aligned with the umbrella-shaped hole 20, so that the first abutting bolt 21 abuts against different parts of the umbrella-shaped hole 20 to realize height adjustment of the convex end surface abutting table 11, and here, it needs to be explained that the first abutting bolt 21 should abut against the upper semi-circular arc surface of the umbrella-shaped hole 20, so that the convex end surface abutting table 11 has greater capability of resisting longitudinal pressure; it should be further noted that the fixing seat 17 is in threaded fit with a second abutting bolt 22 in abutting fit with the side surface of the convex end surface abutting table 11, so as to further improve the mounting strength of the convex end surface abutting table 11 after adjustment.

The fixing seat 17 is adjustably mounted on the base 1 in the following manner, as shown in fig. 4, 5 and 6, the fixing seat 17 is provided with an adjusting elongated slot 23, the base 1 is provided with at least three adjusting screw holes 24 corresponding to the adjusting elongated slot 23, a pressure bolt 25 is screwed in any adjusting screw hole 24, a thread section of the pressure bolt 25 vertically penetrates through the adjusting elongated slot 23, and a nut part of the pressure bolt is pressed on the upper surface of the fixing seat 17; when the position of the fixing seat 17 needs to be adjusted and the lower die holder is adjusted, the fixing seat 17 can be slid by loosening the pressing bolt 25, after the adjustment is completed, the mobility of the fixing seat 17 can be limited by tightening the pressing bolt 25, it should be noted that three adjusting screw holes 24 are adopted to be matched with one adjusting long groove 23, so that each adjusting screw hole 24 can endow the fixing seat 17 with a certain adjusting range, and the adjustable range of the fixing seat 17 is effectively improved.

The structure of the sheared workpiece 14 is as follows, as shown in fig. 6, the sheared workpiece 14 comprises a tool block 26 fixed on the base 1, a sheared block 27 vertically connected with the tool block 26, and an upper push compression spring 28 arranged between the bottom surface of the sheared block 27 and the base 1, the sheared block 27 horizontally penetrates through a sheared clamp 29, and the opening of the sheared clamp 29 faces the deformation stress platform 13; when the shearing block 27 stops applying downward force to the shearing block 27 by the shearing table 34, the elastic potential energy is released by the upper pushing and compressing spring 28 to push the shearing block 27 to reset in time, and waiting for the subsequent material belt to enter the shearing nip 29; in conclusion, the shearing workpiece 14 is in linkage fit with the lifting of the lifting seat 3, so that the material belt and the outer conductor can be sheared without additionally providing kinetic energy, the coordination is better, and the control is more convenient.

In order to facilitate the cable to be smoothly inserted into the outer conductor, as shown in fig. 8, a first guiding tapered groove 30 is formed on the upper surface of the cutting block 27, a telescopic block 36 is slidably fitted on the cutting table 34, and a second guiding tapered groove 37 is arranged on the telescopic block 36, which faces the first guiding tapered groove 30, so that the first guiding tapered groove 30 and the second guiding tapered groove 37 cooperate to guide the end of the cable, thereby facilitating the smooth insertion of the end of the cable into the outer conductor.

In order to limit the moving range of the telescopic block 36, as shown in fig. 8, the telescopic block 36 is formed with a hook 38, and the shearing and pushing table 34 is provided with a hook groove 39 for the hook 38 to slide, so that the downward moving range of the telescopic block 36 is limited by the cooperation between the hook 38 and the hook groove 39, and the telescopic block 36 is effectively prevented from being separated from the shearing and pushing table 34 when the lifting seat 3 is lifted; in order to improve the actual guiding effect of the second guiding cone groove 37, a downward pushing compression spring 40 is arranged between the hook head 38 and the hook groove 39 in a cushioning mode, so that the potential energy of the downward pushing compression spring 40 is utilized, the hidden danger that the telescopic block 36 is pushed to rise by the end of the cable is reduced, and the actual guiding effect of the second guiding cone groove 37 is effectively improved; in order to prevent the telescopic block 36 from moving down along with the shearing and pushing table 34 without limitation, two supporting feet 41 are formed at the bottom end of the telescopic block 36 in a machining mode, and the two supporting feet 41 are in butt fit with the upper surface of the tool block 26, so that the telescopic block 36 is prevented from descending along with the shearing and pushing table 34 excessively.

The upper cutter group is mounted on the lifting seat 3 in the following way, as shown in fig. 2 and 3, the lifting seat 3 is provided with a cutter mounting notch 42, the avoiding cutter 32, the deformation pressing platform 33 and the shearing and pushing platform 34 are sequentially embedded in the cutter mounting notch 42, and a cutter mounting bolt 43 is in threaded fit with the cutter mounting notch and sequentially penetrates through the shearing and pushing platform 34, the deformation pressing platform 33 and the avoiding cutter 32 and extends into the lifting seat 3; cutter 32, deformation pressure platform 33 and cut off and push away platform 34 are dodged in independent processing production, and the gomphosis installation is carried out to rethread dress sword notch 42, utilizes dress sword bolt 43 to consolidate at last, effectively improves the convenience of production to have the ability of changing a certain part of upper slitter group alone, effectively reduce the in-service use cost of this application.

As shown in fig. 2, 3, 4, 5 and 9, the inner notch 44 is arranged at the bottom of the tool-loading notch 42, and the vertical sliding plate 45 in sliding fit with the inner notch 44 is arranged on the pre-clamping tool 31, so that the pre-clamping tool 31 is endowed with the telescopic capability by utilizing the fit between the inner notch 44 and the vertical sliding plate 45, and further, the hidden danger that the outer conductor is damaged by clamping is effectively reduced on the premise of pre-clamping the outer conductor; in order to improve the pre-pressing clamping effect, a pre-pressing compression spring 46 is arranged between the upper end face of the pre-clamping tool 31 and the lower end face of the lifting seat 3, so that the elastic potential energy of the pre-pressing compression spring 46 is utilized to provide a downward thrust for the pre-clamping tool 31, and the pre-pressing clamping effect is effectively improved.

In order to limit the moving range of the pre-clamping cutter 31, as shown in fig. 9, a stroke slot 47 is formed through the vertical sliding plate 45, and the cutter mounting bolt 43 penetrates through the stroke slot 47 with a gap, so that the sliding range of the vertical sliding plate 45 is limited, and the moving range of the pre-clamping cutter 31 is further limited.

The specific embodiments are only for explaining the present invention, and the present invention is not limited thereto, and those skilled in the art can make modifications without inventive contribution to the present embodiments as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a die set of pressing a knife for cable outer conductor press, includes base (1), is lift seat (3) of vertical relative setting with base (1), installs in the lower knife tackle seat of base (1) to and install in the last knife tackle of lift seat (3), its characterized in that:

the lower cutter die holder comprises a convex end surface abutting table (11), a convex arc accommodating groove (12), a deformation stress table (13) and a shearing workpiece (14) which are sequentially arranged, and a positioning chamfer (15) is arranged at one side of the upper end surface of the deformation stress table (13) which is abutted to the convex arc accommodating groove (12);

go up the knife tackle including with protruding round end face butt joint platform (11) complex clamp cutter (31) in advance, just dodge cutter (32) to protruding round circular arc holding tank (12), just press platform (33) to the deformation of deformation atress platform (13) to and be used for the linkage to cut off cutting of work piece (14) and push away platform (34), dodge cutter (32) and be provided with diameter and be greater than dodge notch (35) of outer conductor protruding circle.

2. The die set of claim 1, wherein: caulking groove (16) have been seted up to base (1) upper surface, protruding circular arc holding tank (12), deformation atress platform (13) and cut work piece (14) and inlay in caulking groove (16) in proper order, base (1) is fixed with fixing base (17) in caulking groove (16) is adjustable, and the level runs through protruding circular arc holding tank (12), deformation atress platform (13) and cut work piece (14) and extend into fixing base (17) and seted up two at least assembly screw (18).

3. The die set of claim 2, wherein: the fixed seat (17) is provided with a vertical notch (19), and the convex end face abutting platform (11) is arranged in the vertical notch (19) in a lifting mode; umbrella-shaped hole (20) have been seted up to protruding round end face butt platform (11) one side, fixing base (17) have in homonymy screw-thread fit to aim at first tight bolt (21) of propping in umbrella-shaped hole (20), fixing base (17) screw-thread fit have with protruding round end face butt platform (11) side butt complex second prop tight bolt (22).

4. The die set of claim 2, wherein: the adjustable screw seat is characterized in that an adjusting long groove (23) is formed in the fixed seat (17), at least three adjusting screw holes (24) are formed in the base (1) corresponding to the adjusting long groove (23), a pressing bolt (25) is in threaded fit with any adjusting screw hole (24), a threaded section of the pressing bolt (25) vertically penetrates through the adjusting long groove (23), and a nut part of the pressing bolt is pressed on the upper surface of the fixed seat (17).

5. The die set of claim 1, wherein: the shearing workpiece (14) comprises a tooling block (26) fixed on the base (1), a shearing block (27) vertically connected to the tooling block (26), and an upper pushing and contracting spring (28) arranged between the bottom surface of the shearing block (27) and the base (1), wherein the shearing block (27) horizontally penetrates through a shearing clamping opening (29), and the opening of the shearing clamping opening (29) faces the deformation stress platform (13).

6. The die set of claim 5, wherein: the upper surface of the shearing block (27) is provided with a first guide conical groove (30), the shearing and pushing table (34) is matched with a telescopic block (36) in a sliding mode, and the telescopic block (36) is provided with a second guide conical groove (37) right opposite to the first guide conical groove (30).

7. The die set of claim 6, wherein: the telescopic block (36) is provided with a hook head (38), and the shearing and pushing table (34) is provided with a hook groove (39) for the hook head (38) to slide; a push-down compression spring (40) is arranged between the hook head (38) and the hook groove (39); the bottom end of the telescopic block (36) is provided with two supporting feet (41), and the two supporting feet (41) are in butt fit with the upper surface of the tooling block (26).

8. The die set of claim 1, wherein: the cutter installing notch (42) is formed in the lifting seat (3), the avoiding cutter (32), the deformation pressing platform (33) and the shearing and pushing platform (34) are sequentially embedded in the cutter installing notch (42) and sequentially penetrate through the shearing and pushing platform (34), the deformation pressing platform (33) and the avoiding cutter (32) and extend into the lifting seat (3) to be in threaded fit with the cutter installing bolt (43).

9. The die set of claim 8, wherein: the tank bottom of dress sword notch (42) is provided with interior notch (44), press from both sides cutter (31) in advance and be provided with the vertical slide (45) of the cooperation that slides with interior notch (44), be provided with pre-compaction compression spring (46) between the up end of pressing from both sides cutter (31) in advance and the lower terminal surface of lift seat (3).

10. The die set of claim 9, wherein: the vertical sliding plate (45) penetrates through a stroke groove (47), and the cutter mounting bolt (43) penetrates through the stroke groove (47) in a clearance mode.

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