CN111791135A

CN111791135A - Cutting machine

Info

Publication number: CN111791135A
Application number: CN202010548716.0A
Authority: CN
Inventors: 黄少杰; 黄司弘
Original assignee: Fujian Maotian Technology Co ltd
Current assignee: Fujian Maotian Technology Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-10-20

Abstract

The invention discloses a cutting machine, which is used for cutting an ejector pin, wherein the ejector pin comprises an adjusting end and a cutting end, the cutting machine comprises a slide rail, a first slide seat, a slide table, a fine adjustment mechanism, a second slide seat, a limiting mechanism and a cutting assembly, the extending direction of the slide rail is consistent with the extending direction of the ejector pin, the first slide seat and the second slide seat are arranged at two ends of the slide rail in a sliding mode, the slide table is arranged on the first slide seat in a sliding mode and fixes the adjusting end of the ejector pin, the fine adjustment mechanism controls the position of the slide table on the first slide seat, the limiting mechanism is arranged on the second slide seat and is matched with the second slide seat to fix the cutting end of the ejector pin, and. The scheme realizes convenient, high-efficient, accurate, high-quality cutting.

Description

Cutting machine

Technical Field

The invention relates to the technical field of thimble processing, in particular to a cutting machine.

Background

The thimble is a kind of mould fittings, can also be called push rod, middle needle and needle holder, is usually used for ejecting the products formed in the mould, it includes countersunk head and cylinder, need to carry on the necessary processing according to the product requirement when cooperating with mould to use, wherein the length processing of the cylinder is necessary, the length processing mainly uses the cutting machine processing of the thimble, the traditional cutting machine structure is already known, such as the thimble tool disclosed in Chinese patent application No. 201310155040.9, including base, several clamping pieces, air cylinder and positioning backup plate, the base has a fixed part, several clamping pieces are mounted to one side of the fixed part, there are clamping spaces used for clamping the thimble between the fixed part and the clamping piece and between two adjacent clamping pieces, the air cylinder is used for squeezing several clamping pieces in order to clamp several thimbles, the positioning backup plate is located on one side of the base and used for leaning against one end of several thimbles, the positioning backup plate is slidably mounted on the slide rail, and the sliding direction of the positioning backup plate is perpendicular to the sliding direction of the plurality of clamping pieces.

Although above-mentioned traditional thimble tool can once only process a plurality of thimbles, but mainly accomplish the length adjustment of cylinder through the mobile location backup plate to and press from both sides tight ejector pin through grip block and cylinder body cooperation, two operations need set up respectively and are used for gliding slide rail or spout, and need additionally install the fixed emery wheel that is used for the cutting action, if the emery wheel takes place the offset, still can change the cutting point, there is overall structure complicacy, the relatively poor scheduling problem of cutting precision.

In view of the above, the applicant has entered into an extensive study to solve the above problems, and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a cutting machine which can realize convenient, efficient, accurate and high-quality cutting.

In order to achieve the above purpose, the solution of the invention is:

the utility model provides a cutting machine, be used for cutting the thimble, the thimble includes regulation end and cutting end, wherein, cutting machine includes the slide rail, first slide, the slip table, fine-tuning, the second slide, stop gear and cutting assembly, the extending direction of slide rail is unanimous with the extending direction of thimble, first slide and second slide are slided and are established at the slide rail both ends, the slip table slides and establishes on first slide and the regulation end of the fixed thimble of slip table, fine-tuning control slip table position on first slide, stop gear establishes on the second slide and with the cutting end of the fixed thimble of second slide cooperation, cutting assembly establishes on the second slide.

Further, the slide rail is the polished rod, and the cutting machine still includes fixed plate, first locking screw and second locking screw, all be equipped with hole, locking screw and the incision of stepping down on fixed plate and the second slide, the polished rod runs through the hole of stepping down, and the hole of stepping down sets up with the locking screw is perpendicular, and the incision cuts off the locking screw and opens the hole pore wall of stepping down along stepping down the hole axis, and first locking screw passes the locking screw of fixed plate, and the locking screw of second slide is passed to the second locking screw, fixed plate and first slide fixed connection.

Further, fine setting mechanism includes fine setting pole and with axis coincidence fine setting screw and rotation hole, the axis of fine setting screw is parallel with the slide rail and the fine setting screw is established on the slip table, first slide includes the supporting part, and the rotation hole is established on the supporting part, and the fine setting pole includes the rotation portion of doing the rotation motion around the rotation hole axis and passes the screw thread post of fine setting screw in the rotation is downthehole.

Furthermore, the fine adjustment mechanism also comprises a digital display electronic ruler.

Furthermore, the second slide is provided with a clamping table, the clamping table comprises a first table surface and a second table surface, the ejector pin is clamped on the clamping table and is tangent to the first table surface and the second table surface, the limiting mechanism comprises a movable abutting piece, and the movable abutting piece abuts against the ejector pin and generates vertical pressure F1 and horizontal pressure F2 for the ejector pin.

Furthermore, stop gear still includes regulation and control pole and regulation and control board, and the regulation and control board is fixed on the second slide and is equipped with the regulation and control screw, and the axis of regulation and control screw coincides with the angular bisector of centre gripping platform, and regulation and control pole one end spiral is passed behind the regulation and control screw and is connected with activity top-piece fixed connection.

Furthermore, the movable propping piece is a rectangular inclined block vertically connected with the adjusting and controlling rod, and the tangent point of the rectangular inclined block and the ejector rod is arranged on the angular bisector of the clamping table.

Further, the movable abutting piece comprises a horizontal abutting plate and a vertical abutting plate which are vertically connected, the horizontal abutting plate and the vertical abutting plate are arranged on an angular bisector of the clamping table at an intersection point, and the horizontal abutting plate and the vertical abutting plate are tangent to the ejector pin.

Furthermore, stop gear still includes the pivot, the activity is supported the ejecting and is the clamping hook, and the pivot is fixed on the second slide, and the clamping hook includes centre gripping cambered surface portion and rotation hole, rotates the hole cover and establishes and do the rotation motion around the pivot in the pivot, and centre gripping cambered surface portion is tangent and produces to support the resultant force F to the thimble.

Further, stop gear is still including supporting spring and check lock lever, the activity is supported the piece and is horizontal grip block, the second slide has horizontal screw hole, the check lock lever passes horizontal grip block and horizontal screw hole and is connected, the second slide is equipped with horizontal storage tank, support the spring and arrange horizontal storage tank in and both ends support tank bottom and horizontal grip block respectively, this horizontal grip block supports the roof portion including the slope, and the slope supports the top tangent with the thimble.

After the structure is adopted, the invention relates to a cutting machine which comprises a first sliding seat and a second sliding seat, wherein the first sliding seat is used for fixing the adjusting end of the thimble and is provided with a fine adjustment mechanism, and the second sliding seat is provided with a limiting mechanism. The length of thimble is decided to the distance of first slide and second slide, during the cutting, this case is according to the target length of thimble earlier through removing the approximate position of first slide short-term determination regulation end, then confirms the accurate position of regulation end again through the fine-tuning on the first slide of control, fixes a position the second slide after that, fixes the cutting end through stop gear and second slide cooperation to begin the cutting through cutting assembly.

Compared with the prior art, beneficial effect lies in, this case compromises regulation speed and regulation precision through carrying out twice different regulation mode to adjusting the end to all establish cutting assembly and stop gear on the second slide, both can realize fixing and cutting the cutting end simultaneously, still guarantee that the fixed point of thimble keeps unanimous with the distance of cutting point, reduce the secondary error. To sum up, the scheme has the advantage of promoting cutting efficiency and cutting quality.

Drawings

Fig. 1 is a front view of the present invention applied to a cutting machine;

FIG. 2 is a front view of a first carriage and slide table of the present invention;

FIG. 3 is a side view of a first carriage and ramp of the present invention;

FIG. 4 is a side view of the vernier of the present invention;

FIG. 5 is a side view of a fixation plate of the present invention;

figure 6 is one of the side views of the second carriage of the present invention in cooperation with the first embodiment of the spacing mechanism;

figure 7 is a second side view of the second carriage of the present invention in cooperation with the first embodiment of the spacing mechanism;

FIG. 8 is a side view of a cutting machine incorporating a second carriage and a second embodiment of a spacing mechanism of the present invention;

FIG. 9 is a side view of a cutting machine having a second carriage of the present invention engaged with a second embodiment stop mechanism;

FIG. 10 is a partial enlarged view of one of the portions B of FIG. 8;

FIG. 11 is a second enlarged view of the detail B in FIG. 8;

FIG. 12 is a side view of a first embodiment of a fixed clamping hook of the present invention;

FIG. 13 is a side view of a second embodiment of a fixed gripping hook of the present invention;

figure 14 is a side view of the second carriage of the present invention in cooperation with a third embodiment of a spacing mechanism.

In the figure:

a thimble-100, an adjusting end-101 and a cutting end-102;

a slide rail-200;

the device comprises a first sliding seat-300, a supporting part-301, a clamping table-302, a first table-surface-302 a, a second table-surface-302 b, a sliding block-303, a horizontal threaded hole-304 and a horizontal containing groove-305;

a sliding table-400 and a sliding groove-401;

a fine adjustment mechanism-500, a fine adjustment rod-501, a self-rotating part-501 a, a threaded column-501 b, a fine adjustment screw hole-502 and a self-rotating hole-503;

a second carriage-600;

the device comprises a regulating and controlling rod-701, a regulating and controlling plate-702, a rectangular inclined block-703, a horizontal top-supporting plate-704, a vertical top-supporting plate-705, a rotating shaft-706, a clamping hook-707, a clamping arc-shaped surface-707 a, a rotating hole-707 b, a positioning groove-707 c, a top-pressing part-707 d, a locking handle-708, a handle fixing seat-709, a first locking hole-710, a second locking hole-711, a locking plate-712, a positioning rod-713, a positioning convex part-713 a and a second connecting spring-714; a propping spring-715; a locking rod-716; a horizontal clamping block-717, inclined against the top plate-717 a;

cutting assembly-800, swing rotating shaft-801, grinding wheel-802, motor-803, swing connecting plate-804, first connecting hole-805, second connecting hole-806 and first connecting spring-807;

the locking device comprises a first locking screw-901, an abdicating hole-902, a locking screw hole-903, a notch-904 and a fixing plate-905.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 14, the present disclosure provides a cutting machine for cutting a thimble 100, where the thimble 100 includes an adjusting end 101 and a cutting end 102, and the length of the thimble 100 is adjusted by moving the position of the adjusting end 101. The cutting machine comprises a slide rail 200, a first slide carriage 300, a sliding table 400, a fine adjustment mechanism 500, a second slide carriage 600, a limiting mechanism and a cutting assembly 800. The extending direction of the sliding rail 200 is consistent with the extending direction of the thimble 100, the first sliding base 300 and the second sliding base 600 are slidably arranged at two ends of the sliding rail 200, the sliding table 400 is slidably arranged on the first sliding base 300, the sliding table 400 fixes the adjusting end 101 of the thimble 100, the fine adjustment mechanism 500 controls the position of the sliding table 400 on the first sliding base 300, and the adjusting unit of the fine adjustment mechanism 500 is smaller than the moving unit of the first sliding base 300. The limiting mechanism is disposed on the second sliding base 600 and cooperates with the second sliding base 600 to fix the cutting end 102 of the thimble 100, and the cutting assembly 800 is disposed on the second sliding base 600.

The length of the thimble 100 is determined by the distance between the first slider 300 and the second slider 600, and during cutting, the approximate position of the adjusting end 101 is determined quickly by moving the first slider 300 according to the target length of the thimble 100, then the accurate position of the adjusting end 101 is determined again by controlling the fine adjustment mechanism 500 on the first slider 300, then the second slider 600 is positioned, the cutting end 102 is fixed by matching the limiting mechanism and the second slider 600, and cutting is started by the cutting assembly 800.

Like this, this case gives consideration to regulation speed and regulation precision through adjusting regulation end 101 twice to all establish cutting assembly 800 and stop gear on second slide 600, both can realize fixing and cutting end 102 simultaneously, still guarantee that the fixed point of thimble 100 keeps unanimous with the distance of cutting point, reduce the secondary error. To sum up, the scheme has the advantage of promoting cutting efficiency and cutting quality.

For realizing the quick travel of first slide 300, as shown in fig. 3, 5, 6, it is preferred, slide rail 200 is the polished rod, and the cutting machine still includes fixed plate 905, first locking screw 901 and second locking screw (not shown), all be equipped with hole 902, locking screw 903 and incision 904 of stepping down on first slide 300 and the second slide 600, the polished rod runs through hole 902 of stepping down, and hole 902 of stepping down sets up with locking screw 903 perpendicularly, and incision 904 cuts off locking screw 903 and cuts off hole 902 pore wall of stepping down along the hole 902 axis of stepping down, and first locking screw 901 passes locking screw 903 of fixed plate 905, and second locking screw passes locking screw 903 of second slide 600, fixed plate 905 and first slide 300 fixed connection, fixed plate 900 move on the polished rod and can drive first slide 300 and move on the polished rod. The polished rod is tightly held by the inner hole wall of the abdicating hole 902 to fix the first sliding seat 300 and the second sliding seat 600, when the two sliding seats need to slide, the first locking screw 901 or the second locking screw is loosened, the notch 904 is loosened, the abdicating hole 902 is opened to generate a gap with the polished rod, so that the first sliding seat 300 and the second sliding seat 600 can slide on the polished rod, and the polished rod has a smooth surface, so that the friction force between the polished rod and the two sliding seats is small, and the rapid sliding is facilitated. After moving to the proper position, the first locking screw 901 and the second locking screw are locked again to lock the fixing plate 900 and the second slider 600.

As a specific embodiment of the fine adjustment mechanism 500, the fine adjustment mechanism 500 includes a fine adjustment rod 501, and a fine adjustment screw hole 502 and a rotation hole 503 which are coincident with each other, an axis of the fine adjustment screw hole 502 is parallel to the slide rail 200, and the fine adjustment screw hole 502 is provided on the slide table 400, the first slide base 300 includes a support portion 301, the rotation hole 503 is provided on the support portion 301, the fine adjustment rod 501 includes a rotation portion 501a which performs rotation movement around an axis of the rotation hole 503 in the rotation hole 503, and a threaded post 501b which passes through the fine adjustment screw hole 502, and the fine adjustment rod 501 is clamped on the support portion 301 by the rotation portion 501a, so that a position thereof is kept unchanged. During adjustment, the fine adjustment rod 501 is rotated to move the fine adjustment screw hole 502 at the position of the threaded column 501b, so that the sliding table 400 is translated. The fine tuning screw hole 502 and the thread column 501b have smaller thread pitch, i.e. the adjusting unit is smaller, so as to facilitate accurate fine tuning.

More preferably, the sliding table 400 is further provided with a sliding groove 401, and the first sliding base 300 is provided with a sliding block 303 which is slidably inserted into the sliding groove 401, so that the sliding table 400 can slide more stably.

The fine adjustment amount is small, and in order to accurately position the sliding table 400, it is more preferable that the fine adjustment mechanism 500 further includes a digital display electronic ruler (not shown), which can accurately display the current position of the sliding table 400 in real time, and is convenient for completing the fine adjustment operation by matching with the fine adjustment rod 501.

When the grinding wheel 802 cuts the thimble 100, two acting forces are generated on the thimble 100, one is a horizontal acting force in a direction in which the grinding wheel 802 is tangent to the surface of the thimble 100, and the other is a vertical acting force in which the grinding wheel 802 is gradually pressed down with the increase of the cutting depth, so that the clamping table 302 generates horizontal and vertical rebounding forces on the thimble 100, in order to stably clamp the thimble to be cut, preferably, as shown in fig. 5, the second slide base 600 is provided with the clamping table 302, the clamping table 302 comprises a first table surface 302a and a second table surface 302b, the thimble 100 is clamped on the clamping table 302 and is tangent to the first table surface 302a and the second table surface 302b, and the limiting mechanism comprises a movable abutting piece which abuts against the thimble 100 and generates a vertical pressure F1 and a horizontal pressure F2 on the thimble 100.

Therefore, vertical rebound force is offset by vertical pressure F1, horizontal rebound force is offset by horizontal pressure F2, stress of the thimble 100 is balanced, the thimble cannot move in the horizontal direction or jump in the vertical direction, and the thimble is kept stable in the cutting process, so that smooth high-quality cutting of a tangent plane is guaranteed. Moreover, the ejector pin 100 can adapt to ejector pins 100 with various radius specifications, and the abutting operation is convenient and flexible.

One end of the first table-board 302a and one end of the second table-board 302b are fixedly connected to form an included angle, and the included angle can be between 180 degrees and 0 degree.

As a first specific embodiment of the clamping table, the first table-board 302a is vertically disposed, the second table-board 302b is inclined toward the direction close to the first table-board 302a, the two table-boards form an acute included angle, and the second table-board 302b is inclined upward, so that the thimble placed on the second table-board 302b can roll toward the connecting direction of the two table-boards and is stabilized at the position.

As a second specific embodiment of the clamping table, the second table surface 302b is horizontally disposed, the first table surface 302a is inclined toward a direction close to or away from the second table surface 302b, and when the first table surface 302a is inclined toward a direction close to the second table surface 302b, the first table surface 302a has a certain downward pressure on the thimble, which is beneficial to preventing the thimble from jumping up and down during cutting.

As a third specific embodiment of the clamping table, the first table surface 302a and the second table surface 302b are vertically arranged, so that the position change of the thimbles with different radius specifications on the clamping table is small, and the thimbles are beneficial to being clamped by the clamping hooks 707.

In the present case, the limiting mechanism has two embodiments, as shown in fig. 5 and 6, as a first embodiment, the limiting mechanism further includes a regulating and controlling rod 701 and a regulating and controlling plate 702, the regulating and controlling plate 702 is fixed on the second sliding seat 600 and is provided with a regulating and controlling screw hole, an axis of the regulating and controlling screw hole coincides with an angular bisector of the clamping table 302, and one end of the regulating and controlling rod 701 is fixedly connected to the movable abutting member after spirally passing through the regulating and controlling screw hole. The distance between the regulating plate 702 and the clamping table 302 is controlled by rotating the regulating rod 701 to match with the clamping table 302 to clamp the thimbles 100 with various radius sizes, so that the flexibility and the adaptability are stronger.

As one example of the movable abutting member, as shown in fig. 5, the movable abutting member is a rectangular inclined block 703 vertically connected to the adjusting and controlling rod 701, and a tangent point of the rectangular inclined block 703 and the ejector rod is set on a bisector of the clamping table 302, so that F1 and F2 are equal no matter where the rectangular inclined block 703 is located on the bisector, and sufficient vertical pressure and horizontal pressure can be provided for the ejector pin 100.

As another embodiment of the movable abutting-against member, as shown in fig. 6, the movable abutting-against member includes a horizontal abutting-against plate 704 and a vertical abutting-against plate 705 which are vertically connected, an intersection point of the horizontal abutting-against plate 704 and the vertical abutting-against plate 705 is set on an angular bisector of the clamping table 302, and both the horizontal abutting-against plate 704 and the vertical abutting-against plate 705 are tangent to the thimble 100. Not only can ensure sufficient pressure, but also increases the protection area and effectively prevents the cutting end 102 from being separated from the clamping table 302.

As a second embodiment of the limiting mechanism, as shown in fig. 7, the limiting mechanism further includes a rotating shaft 706, the movable abutting member is a clamping hook 707, the rotating shaft 706 is fixed on the second sliding seat 600, the clamping hook 707 includes a clamping arc section 707a and a rotating hole 707b, the rotating hole 707b is sleeved on the rotating shaft 706 and rotates around the rotating shaft 706, and the clamping arc section 707a is tangent to the thimble 100 and generates an abutting force F to the thimble 100. Therefore, the clamping hook 707 applies the abutting resultant force F to the thimble 100 from the tangent point, the abutting resultant force F acting on the thimble 100 can be decomposed into a vertical pressure F1 and a horizontal pressure F2, and the vertical pressure F1 is greater than the horizontal pressure F2, so that the actual stress condition that the vertical acting force generated by the grinding wheel 802 on the thimble 100 in the cutting process is greater than the horizontal acting force is matched, and the counter-elastic force of the clamping table 302 on the thimble 100 is ensured to be offset.

In the actual cutting process, the applicant further finds that the vertical acting force of the grinding wheel 802 on the thimble 100 is greater than the horizontal acting force, so that the present application further optimizes the design of the clamping hook 707, and defines a tangent point a1 between the clamping arc section 707a and the thimble 100, the rotating hole is rotatably sleeved on the rotating shaft 706 and rotates around the rotating shaft 706, the clamping arc section 707a abuts against the thimble 100 and generates a vertical pressure F1 and a horizontal pressure F2 on the thimble 100, and the rotating hole 707b is rotatably sleeved on the rotating shaft 706 and rotates around the rotating shaft 706, so that the vertical pressure F1 is greater than the horizontal pressure F2.

The resultant abutting force F is orthogonally decomposed, as shown in fig. 9, the clamping hook 707 applies the resultant abutting force F to the thimble 100 from the tangent point a1, the resultant abutting force F acts on the thimble 100 and can be decomposed into a vertical pressure F1 and a horizontal pressure F2, the vertical pressure F1 is greater than the horizontal pressure F2, the actual stress condition of the thimble 100 on which the vertical acting force generated by the grinding wheel 802 during the cutting process is greater than the horizontal acting force is matched, the counterforce of the clamping table 302 on the thimble 100 is ensured to be offset, the stress of the thimble 100 during the cutting process is balanced, the thimble 100 cannot move in the horizontal direction or jump in the vertical direction, and the thimble remains stable during the cutting process, so that the smooth high-quality cutting of the section is ensured.

In addition, the clamping hook can be rotated by itself to abut against the ejector pins with the radius specification within a certain range, and the vertical pressure F1 is greater than the horizontal pressure F2 in the abutting process, so that the ejector pin clamping mechanism can be adaptive to ejector pins with various specifications and is more flexible to use.

According to the relation that the vertical acting force is about 1.7 times of the horizontal acting force, the included angle alpha between the abutting force F generated by the clamping arc-shaped surface portion 707a on the ejector pin 100 and the first table-board 302a is in the range of 50-70 degrees.

In actual cutting, the thimble 100 to be cut has a plurality of specifications with different radii, for example, the radius range may be between 0.5mm to 10mm, and the positions of the thimbles 100 with different radii on the clamping table 302 are different, so the positions of the contact points of the clamping hook 707 and the different thimbles 100 are also changed, if the normal plane rotation is downward rotated along with the decreasing radius of the thimble 100 and is tangent to the thimble 100, the contact points are gradually downward moved, and the movement is very large, so that the vertical pressure F1 is rapidly reduced, and thus the thimble can not adapt to thimbles with more specifications.

In the present embodiment, the clamping hook 707 needs to rotate according to the specification of the thimble 100, so that the tangent point between the clamping arc 707a and the thimble 100 will also change, the change of the tangent point will cause the change of α, and in order to ensure that α slightly changes between 50 degrees and 70 degrees, the structure and assembly of the clamping hook 707 need to be designed more specifically

As shown in fig. 10, a cross-sectional center position of the thimble 100 to be cut with a largest radius of R1 and the largest radius is defined as a2, a center of the clamping arc section 707a is defined as A3 and a radius of R2, a center of the rotation hole 707b is defined as a4, and an included angle β between a4 and the first mesa 302a is defined.

Specifically, R2 is larger than R1 and X, the range of X is 1.5-3.5 mm, when the thimble 100 with the radius of R1 is tangent to the clamping arc portion 707a, A3 determines the position and the radius of the clamping arc portion 707a in the direction of the butting force F, then determines the position of the rotating shaft 706 according to the position and the radius of the clamping arc portion 707a, the angle of beta is 141 degrees, and the distance L1 between A4 and A3 is 150 times of X and 200 times. Therefore, the design and the assembly of the clamping cambered surface portion 707a are completed, the motion track of the clamping cambered surface is determined, and under the structural cooperation of the motion track and the clamping cambered surface portion 707a, the downward movement offset of the tangent point can be offset by the cambered surface structure of the clamping cambered surface portion 707a, so that the tangent point offset of the clamping cambered surface portion 707a and the thimble 100 is minimized, and therefore when the thimble 100 with the cutting radius within a certain range is cut, alpha is between 50 degrees and 70 degrees, the variation is small, and the thimble can flexibly and self-adapt to thimbles with more specifications.

In the practical operation, the scheme is designed with a more specific embodiment: r1 was 8 mm, R2 was 10mm, and L1 was 3129 mm.

To complete the cutting, as shown in fig. 11, the present invention further includes a second slide 600, and the clamping table 302 is disposed on the second slide 600. The cutting assembly 800 comprises a swing rotating shaft 801, a grinding wheel 802, a motor 803 and a swing connecting plate 804, wherein the swing rotating shaft 801 is arranged on the second sliding base 600, so that the cutting assembly 800 and a clamping hook 707 are arranged on the second sliding base 600 together, and cutting is facilitated. The grinding wheel 802 is connected with a motor 803, the motor 803 is connected with a swing connecting plate 804, and the swing connecting plate 804 is arranged on the swing rotating shaft 801 and rotates around the swing rotating shaft 801. The swing connecting plate 804 rotates to drive the motor 803 and the grinding wheel 802 to rotate downwards, so that the grinding wheel 802 gradually cuts the thimble 100 downwards.

To realize the rotation of the swing link plate 804, it is preferable that the cutting assembly 800 further includes a first link spring 807, a first link hole 805 provided on the second slider 600, and a second link hole 806 provided on the swing link plate 804, and both ends of the first link spring 807 are respectively fixed to the first link hole 805 and the second link hole 806. During cutting, the swing link 804 rotates downward.

As shown in fig. 11, as a first embodiment of the present invention, the present invention further includes a manual locking assembly, where the manual locking assembly includes a locking handle 708, a handle fixing seat 709, a first locking hole 710 disposed on the second slide carriage 600, a second locking hole 711 disposed on the clamping hook 707, and a locking spring (not shown) having two ends fixed to the first locking hole 710 and the second locking hole 711. The clamping hook 707 is a C-shaped structure and the clamping hook 707 includes a pressing portion 707d, the handle fixing seat 709 is fixedly mounted on the second slide carriage 600 and is provided with a threaded hole, and the locking handle 708 is screwed through the threaded hole of the handle fixing seat 709 to abut against the pressing portion 707 d. In the natural state of the locking spring, the clamping cambered surface portion 707a has a larger distance with the clamping platform 302 for the thimble 100 to be placed in, after the thimble 100 is placed in, the locking handle 708 is manually rotated, so that the locking handle 708 moves leftwards to push the jacking portion 707d, and the clamping hook 707 overcomes the elastic force of the spring to rotate downwards, so that the clamping cambered surface portion 707a is fixedly tangent with the thimble 100. In this embodiment, the clamping hooks 707 are independently fixed, so that interference in the cutting process of the grinding wheel 802 is avoided, and the stability is improved.

As shown in fig. 12, as an embodiment of the second fixed clamping hook 707 of the present invention, the present invention further includes an automatic locking assembly, the automatic locking assembly includes a locking plate 712, a positioning rod 713, a first locking hole 710 disposed on the second slide base 600, a second locking hole 711 disposed on the clamping hook 707, and a locking spring (not shown) having two ends respectively fixed to the first locking hole 710 and the second locking hole 711, the clamping hook 707 has a rectangular structure, and a clamping arc surface portion 707a is disposed on a lower surface of the clamping hook 707. The upper surface of the holding hook 707 is provided with a positioning groove 707 c. The locking plate 712 is fixedly connected to the swing link plate 804 and can rotate along with the rotation of the swing link plate 804, the positioning rod 713 penetrates through the locking plate 712, one end of the positioning rod 713 is provided with a positioning protrusion 713a matched with the positioning groove 707c, the surface of the positioning protrusion 713a is a spherical surface, the positioning groove 707c is an arc-shaped structure, and a second connecting spring 714 is arranged between the positioning protrusion 713a and the locking plate 712. In a natural state of the locking spring, the clamping cambered surface portion 707a has a larger distance with the clamping table 302 for the thimble 100 to be placed in, after the thimble 100 is placed in, the swing connecting plate 804 rotates downwards to drive the grinding wheel 802 to cut the thimble 100 downwards, meanwhile, the swing connecting plate 804 also rotates downwards, so that the positioning convex portion 713a is clamped in the positioning groove 707c to push the clamping hook 707, and the clamping hook 707 rotates downwards against the elastic force of the spring, so that the clamping cambered surface portion 707a is fixedly tangent to the thimble 100. In this embodiment, the clamping hook 707 can be fixed while the grinding wheel 802 is rotated, and the clamping hook 707 does not need to be adjusted in advance, so that the operation is simpler.

As shown in fig. 14, as a second embodiment of the position-limiting mechanism, the position-limiting mechanism further includes a propping spring 715 and a locking rod 716, the movable propping member is a horizontal clamping block 717, the second sliding seat 600 has a horizontal threaded hole 304, the locking rod 716 passes through the horizontal clamping block 717 and is connected with the horizontal threaded hole 304, the second sliding seat 600 is provided with a horizontal receiving groove 305, the propping spring 715 is disposed in the horizontal receiving groove 305 and props against a groove bottom and the horizontal clamping block 717 respectively at two ends, the horizontal clamping block 717 includes an inclined propping plate portion 717a, the inclined propping portion 717a is tangent to the thimble 100 to provide a vertical pressure F1 and a horizontal pressure F2 for the thimble 100. In this way, the horizontal clamping block 717 is fixed by the cooperation of the end of the locking rod 717 and the abutting spring 715, and the horizontal position of the horizontal clamping block 717 is adjusted by adjusting the horizontal position of the locking rod 717, so as to adapt to thimbles 100 with different diameter specifications.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. The utility model provides a cutting machine, a serial communication port, the cutting machine includes slide rail (200), first slide (300), slip table (400), fine adjustment mechanism (500), second slide (600), stop gear and cutting assembly (800), the extending direction of slide rail (200) is unanimous with the extending direction of thimble (100), first slide (300) and second slide (600) slide and establish at slide rail (200) both ends, slip table (400) slide and establish on first slide (300) and slip table (400) fixed thimble (100) regulation end (101), fine adjustment mechanism (500) control slip table (400) position on first slide (300), stop gear establishes on second slide (600) and with second slide (600) cooperation fixed thimble (100) cutting end (102), cutting assembly (800) are established on second slide (600).

2. The cutting machine according to claim 1, wherein the slide rail (200) is a polish rod, the cutting machine further comprises a fixing plate (905), a first locking screw (901) and a second locking screw, the fixing plate (905) and the second slide (600) are respectively provided with an abdicating hole (902), a locking screw hole (903) and a notch (904), the polish rod penetrates through the abdicating hole (902), the abdicating hole (902) is perpendicular to the locking screw hole (903), the notch (904) cuts off the locking screw hole (903) and cuts the wall of the abdicating hole (902) along the axis of the abdicating hole (902), the first locking screw (901) penetrates through the locking screw hole (903) of the fixing plate (905), the second locking screw penetrates through the locking screw hole (903) of the second slide (600), and the fixing plate (905) is fixedly connected with the first slide (300).

3. The cutting machine according to claim 1, wherein the fine adjustment mechanism (500) comprises a fine adjustment rod (501), and a fine adjustment screw hole (502) and a rotation hole (503) which are coincident with the axis, the axis of the fine adjustment screw hole (502) is parallel to the slide rail (200) and the fine adjustment screw hole (502) is provided on the slide table (400), the first slide (300) comprises a support portion (301), the rotation hole (503) is provided on the support portion (301), and the fine adjustment rod (501) comprises a rotation portion (501a) which performs rotation movement around the axis of the rotation hole (503) in the rotation hole (503) and a threaded post (501b) which passes through the fine adjustment screw hole (502).

4. A cutting machine as claimed in claim 3, characterized in that said fine adjustment mechanism (500) further comprises a digital display electronic ruler.

5. The cutting machine according to claim 1, characterized in that the second slide (600) is provided with a clamping table (302), the clamping table (302) comprises a first table surface (302a) and a second table surface (302b), the thimble (100) is clamped on the clamping table (302) and is tangent to the first table surface (302a) and the second table surface (302b), and the limiting mechanism comprises a movable abutting member, the movable abutting member abuts against the thimble (100) and generates a vertical pressure F1 and a horizontal pressure F2 for the thimble (100).

6. The cutting machine according to claim 5, characterized in that the limiting mechanism further comprises a regulating and controlling rod (701) and a regulating and controlling plate (702), the regulating and controlling plate (702) is fixed on the second slide (600) and is provided with a regulating and controlling screw hole, the axis of the regulating and controlling screw hole coincides with the angular bisector of the clamping table (302), and one end of the regulating and controlling rod (701) is fixedly connected with the movable abutting piece after spirally passing through the regulating and controlling screw hole.

7. The cutting machine according to claim 6, characterized in that the movable resisting member is a rectangular oblique block (703) vertically connected with the adjusting and controlling rod (701), and the tangent point of the rectangular oblique block (703) and the mandril is arranged on the angle bisector of the clamping table (302).

8. The cutting machine according to claim 6, characterized in that said movable abutting means comprise a horizontal abutting plate (704) and a vertical abutting plate (705) vertically connected to each other, the intersection point of the horizontal abutting plate (704) and the vertical abutting plate (705) being arranged on the bisector of the angle of the clamping table (302), and both the horizontal abutting plate (704) and the vertical abutting plate (705) being tangent to the thimble (100).

9. The cutting machine according to claim 5, wherein the limiting mechanism further comprises a rotating shaft (706), the movable abutting member is a clamping hook (707), the rotating shaft (706) is fixed on the second sliding base (600), the clamping hook (707) comprises a clamping cambered surface portion (707a) and a rotating hole (707b), the rotating hole (707b) is sleeved on the rotating shaft (706) and rotates around the rotating shaft (706), and the clamping cambered surface portion (707a) is tangent to the thimble (100) and generates an abutting force F to the thimble (100).

10. The cutting machine according to claim 5, wherein the limiting mechanism further comprises an abutting spring (715) and a locking rod (716), the movable abutting member is a horizontal clamping block (717), the second sliding seat has a horizontal threaded hole (304), the locking rod (716) passes through the horizontal clamping block (717) and is connected with the horizontal threaded hole (304), the second sliding seat (600) is provided with a horizontal containing groove (305), the abutting spring (715) is arranged in the horizontal containing groove (305) and abuts against a groove bottom and the horizontal clamping block (717) at two ends respectively, the horizontal clamping block (717) comprises an inclined abutting plate portion (717a), and the inclined abutting portion (717a) is tangent to the ejector pin (100).