CN215094167U

CN215094167U - Woodworking routing equipment

Info

Publication number: CN215094167U
Application number: CN202120615783.XU
Authority: CN
Inventors: 付鹏飞; 钱艳
Original assignee: Dongguan Dajinghua Furniture Development Co ltd
Current assignee: Dongguan Dajinghua Furniture Development Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-12-10
Anticipated expiration: 2031-03-25

Abstract

The application relates to the field of drilling machine technology, in particular to woodworking routing equipment. The key points of the technical scheme are as follows: the drilling machine comprises an equipment body, wherein the equipment body comprises a workbench, a drill bit, a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged on the workbench and is positioned on one side adjacent to the drill bit, and a first vertical plane is arranged on the first positioning assembly; the second locating component set up in on the workstation, the second locating component is located one side of first locating component, the second locating component has the vertical plane of second, first vertical plane and the vertical plane of second is used for laminating the butt with the adjacent both sides of work piece respectively, and this application has the effect that promotes the position precision when the work piece is put.

Description

Woodworking routing equipment

Technical Field

The application relates to the field of drilling machine technology, in particular to woodworking routing equipment.

Background

The woodworking routing equipment is also commonly called a woodworking drilling machine, the drilling machine is a machine tool for processing hole site characteristics on a workpiece, generally, the rotation of a drill bit is used as the main action, the axial movement of the drill bit is used as the feeding action, the drilling machine is simple in structure, the drilling machine can be used for expanding, reaming or tapping the workpiece by replacing a cutter, and the woodworking routing equipment is widely applied to the fields of wood processing and metal processing.

Currently, in the related art, a horizontal drilling machine exists, which is mainly and technically characterized by comprising a machine base, a workbench, a driving assembly and a drill bit, wherein the workbench is fixedly installed at the top of the machine base, the workbench is arranged along the horizontal direction, and the workbench is used for placing materials; in addition, the driving assembly can be arranged on the base in a sliding mode, the driving assembly is adjacent to the workbench and generally comprises a motor, an output shaft of the motor is arranged in the horizontal direction, the drill bit is fixedly arranged on the output shaft of the motor, and the drill bit faces the workbench. Wherein, in the in-process of processing the work piece, can put the work piece to the workstation at first to align the drill bit with the work piece, the starter motor immediately makes the drill bit rotate, orders about drive assembly afterwards and removes towards the work piece, and the drill bit is realized driling the work piece.

For the related art, the hole site features on the workpiece usually have a position accuracy requirement, and the workpiece usually needs to be positioned before drilling, however, in the related art, the workpiece is usually held and positioned manually by an operator during positioning, and the position accuracy of the workpiece during placement is poor.

SUMMERY OF THE UTILITY MODEL

In order to promote the position accuracy when the work piece is put, this application provides a woodworking routing equipment.

The application provides a woodworking routing equipment adopts following technical scheme:

the woodworking routing equipment comprises an equipment body, a first positioning assembly and a second positioning assembly, wherein the equipment body comprises a workbench, a drill bit, the first positioning assembly and the second positioning assembly; the second positioning assembly is arranged on the workbench and located on one side of the first positioning assembly, the second positioning assembly is provided with a second vertical plane, and the first vertical plane and the second vertical plane are used for being respectively abutted with two adjacent sides of a workpiece in a laminating manner.

Through adopting above-mentioned technical scheme, at the in-process of fixing a position the work piece, can laminate the both sides lateral wall that the work piece is adjacent mutually with first vertical plane and the vertical plane of second, at this moment, first locating component and second locating component carry out the bearing to the adjacent both sides of work piece, and then realize fixing a position the work piece, and the position accuracy when the work piece was put obtains promoting.

Preferably, the first positioning component comprises a first positioning convex strip, the first positioning convex strip is fixedly connected to the workbench, the length direction of the first positioning convex strip is perpendicular to the drilling direction of the drill bit, and the first vertical plane is located on one side, back to the drill bit, of the first positioning convex strip.

Through adopting above-mentioned technical scheme, first location sand grip has longer length dimension, can satisfy like a class of work piece location demand of stock form, laminate the work piece to first vertical plane along the length direction of first location sand grip, the work piece is put stably, and the structure is practical, simultaneously, with the length direction of first location strip and the drilling direction of drill bit setting of hanging down mutually, can make first vertical plane and the drilling direction of drill bit hang down mutually, so that in the work piece is bored perpendicularly to the drill bit, drilling location is accurate.

Preferably, the second positioning assembly comprises a movable positioning seat and a clamp, the movable positioning seat is placed on the workbench, and the clamp is used for clamping and fixing the movable positioning seat and the workbench.

Through adopting above-mentioned technical scheme, under the effect of anchor clamps, the fixed position of activity positioning seat on the workstation is adjustable, and then can make the vertical planar locating position of second adjustable, satisfies the location demand that has the work piece of unidimensional not, and the structure is practical.

Preferably, anchor clamps include screw rod, fixed arm lock, activity arm lock and regulating arm, the one end of fixed arm lock with the one end looks fixed connection of regulating arm, fixed arm lock with the regulating arm is mutually perpendicular, the one end of activity arm lock with the regulating arm is slided and is connected, the activity arm lock can for the regulating arm beat, screw rod threaded connection in the activity arm lock is kept away from the one end of regulating arm, the one end of screw rod with fixed arm lock is relative.

By adopting the technical scheme, when the movable positioning seat needs to be positioned, the movable clamping arm can slide on the adjusting arm firstly, so that the space distance between the screw rod and the fixed clamping arm is larger than the thicknesses of the workbench and the movable positioning seat, the fixed clamping arm is moved to the lower part of the workbench immediately, the screw rod is moved to the upper part of the movable positioning seat immediately, the screw rod is rotated immediately, the screw rod is abutted to the movable positioning seat, the fixed clamping table is abutted to the workbench, the screw rod pushes the movable clamping arm to swing relative to the adjusting arm along with the rotation of the screw rod, the movable clamping arm is further fixed on the movable clamping arm, and the clamp realizes clamping and fixing of the movable positioning seat and the workbench.

Preferably, still include third locating component, third locating component is including adjusting support, telescoping cylinder and butt piece, adjust support fixed connection in on the workstation, telescoping cylinder fixed connection in adjust on the support, the vertical downward setting of telescopic link of telescoping cylinder, the telescopic link of telescoping cylinder with the workstation is relative, butt piece fixed connection in on the telescopic link of telescoping cylinder.

Through adopting above-mentioned technical scheme, when the workstation was put to the work piece, start the telescoping cylinder, the telescopic link drive butt piece of telescoping cylinder is vertical moves down until butt piece and the top butt laminating of work piece, and the butt piece pushes down the work piece so that the work piece realizes fixing, and the work piece is put stably.

Preferably, the adjusting support comprises a vertical rod, a horizontal rod and a cross connecting block, the bottom end of the vertical rod is fixedly connected to the workbench, the cross connecting block can be detachably connected to the vertical rod, one end of the horizontal rod is fixedly connected to the cross connecting block, and the telescopic cylinder is arranged on the horizontal rod.

Through adopting above-mentioned technical scheme, montant, horizontal pole and cross connecting block three form support column structure and support the telescoping cylinder in order to realize, simultaneously, through carrying out the pine to the cross connecting block on the montant and take off the unblock for horizontal pole accessible pivoted mode adjustment locating, and then make setting position of telescoping cylinder realize the adjustment, set up the in-process that the position adjusted to the telescoping cylinder, can satisfy the location demand when the work piece is in different positions, it is nimble convenient to use.

Preferably, the first positioning assembly further comprises a friction pad, and the friction pad is fixedly connected to the workbench.

Through adopting above-mentioned technical scheme, the friction pad can increase the roughness of workstation, and then the stability when making the work piece put obtains promoting, and the structure is practical.

Preferably, the workbench is fixedly connected with two second positioning protruding strips, the second positioning protruding strips are respectively located on two sides of the movable positioning seat, and the movable positioning seat is respectively abutted to the second positioning protruding strips.

Through adopting above-mentioned technical scheme, the second location sand grip can laminate the location to the both sides of activity positioning seat for position accuracy and stability when activity positioning seat is put to the workstation are further promoted.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first positioning assembly and the second positioning assembly respectively support two adjacent sides of the workpiece through the first vertical plane and the second vertical plane, so that the workpiece is positioned, and the position precision of the workpiece during placement is improved;

2. the third positioning assembly presses the workpiece downwards to fix the workpiece, so that the stability of the workpiece during placement and processing is further improved;

3. the friction pad can increase the surface roughness of the workbench, so that the stability of the workpiece during placement is further improved.

Drawings

Fig. 1 is a schematic structural view of the woodworking routing apparatus of the present application.

Fig. 2 is a schematic structural view of another perspective of the woodworking routing apparatus of the present application.

FIG. 3 is a schematic structural view of a second positioning assembly of the present application.

Description of reference numerals: 1. an apparatus body; 11. a machine base; 12. a drive assembly; 13. a work table; 14. a drill bit; 2. a first positioning assembly; 21. a first positioning convex strip; 211. a first vertical plane; 22. a friction pad; 3. a second positioning assembly; 31. a movable positioning seat; 311. a second vertical plane; 32. a clamp; 321. a screw; 322. fixing the clamping arm; 323. a movable clamping arm; 324. an adjusting arm; 325. a movable clamping block; 326. a handle; 4. a third positioning assembly; 41. adjusting the bracket; 411. a vertical rod; 412. a cross bar; 413. a cross connecting block; 42. a telescopic cylinder; 43. a butting block; 5. a second positioning convex strip; 6. and a baffle plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses woodworking routing equipment. Referring to fig. 1, this routing equipment includes equipment body 1, equipment body 1 includes frame 11, drive assembly 12, parts such as workstation 13 and drill bit 14, wherein, workstation 13 fixed mounting is in the top of frame 11, workstation 13 sets up along the level, workstation 13 is used for supplying timber to put, wherein, can set up a plank bed course on the workstation 13, the area size that sets up of plank bed course can be greater than workstation 13 according to actual need, put in order to satisfy a kind of timber that has longer length such as vaulting pole and stick. In addition, the driving assembly 12 is disposed on the base 11, specifically, the driving assembly 12 generally includes a motor, a linear module and other components, the linear module is mounted on the base 11, the motor is fixedly mounted on the linear module, at this time, an output shaft of the motor is disposed along a horizontal direction, the drill 14 is fixedly mounted on the output shaft of the motor, the drill 14 is adjacent to the worktable 13, and the drill 14 faces the worktable 13, the linear module can drive the motor to approach or separate from the worktable 13, in this process, the motor is started, the motor drives the drill 14 to rotate, and the drill 14 can drill a workpiece placed on the worktable 13.

Further, be provided with baffle 6 between motor and the drill bit 14, seted up the via hole on the baffle 6, on the via hole was worn to locate by the output shaft of motor, baffle 6 was put to frame 11 on, baffle 6 can play here and block the effect to the timber piece, and then the realization is protected the motor.

With reference to fig. 1, in order to improve the stability of the workpiece during placement, the routing equipment further includes a first positioning component 2, a second positioning component 3, and a third positioning component 4, the first positioning component 2, the second positioning component 3, and the third positioning component 4 are respectively disposed on the worktable 13, the first positioning component 2 and the second positioning component 3 are used for abutting against the side walls of two adjacent sides of the workpiece, so as to position the workpiece, and in addition, the third positioning component 4 is used for pressing down and fixing the workpiece to the worktable 13, so as to improve the stability of the workpiece during placement.

In order to position the workpiece, the first positioning assembly 2 is located at an adjacent side of the drill bit 14, and the first positioning assembly 2 includes a first positioning protruding strip 21 and a friction pad 22, wherein the first positioning protruding strip 21 may be arranged in a long rod shape, and the first positioning protruding strip 21 is arranged along a horizontal direction; first location sand grip 21 fixed connection is on workstation 13, and usually, first location sand grip 21 accessible adhesive fixation's mode is realized realizing fixed connection with workstation 13. The length direction of the first positioning protrusion 21 is perpendicular to the drilling direction of the drill 14, and it should be noted that the drilling direction of the drill 14 can be understood as the moving direction of the drill 14 during drilling, where the first positioning protrusion 21 is opposite to the drill 14, and the side of the first positioning protrusion 21 opposite to the drill 14 forms a first vertical plane 211.

In addition, friction pad 22 can be abrasive paper and rubber pad, the mode laminating that friction pad 22 accessible glue bonded is fixed in the upper surface department of workstation 13, friction pad 22 is located one side that first location sand grip 21 is back to drill bit 14, here, choose for use the work piece for the stick, stick horizontal direction is put to friction pad 22 on, friction is applyed to friction pad 22 to the work piece, the work piece is difficult for rocking, and simultaneously, laminate one side lateral wall of work piece to first vertical plane 211 department, at this moment, the work piece realizes tentatively fixing a position, process convenient and fast.

Referring to fig. 1 and fig. 2, in order to realize the attachment and positioning of the other side of the workpiece, specifically, the second positioning assembly 3 includes a movable positioning seat 31 and a fixture 32, the second positioning assembly 3 is located on one side of the first positioning assembly 2, specifically, the movable positioning seat 31 is placed on the worktable 13, the movable positioning seat 31 may be disposed in a rectangular shape, the movable positioning seat 31 may also be disposed in a square shape, a side wall of one side of the movable positioning seat 31 faces the first positioning protruding strip 21, a side surface of the movable positioning seat 31 facing the first positioning protruding strip 21 is defined as a second vertical plane 311, the second vertical plane 311 is perpendicular to the first vertical plane 211, the fixture 32 is used for clamping and fixing the movable positioning seat 31 on the worktable 13, two side walls adjacent to the workpiece are respectively abutted and attached to the first vertical plane 211 and the second vertical plane 311, and the workpiece can be positioned, the process is convenient and fast.

Specifically, in order to fixedly mount the movable positioning seat 31 on the workbench 13, specifically, the fixture 32 includes a screw 321, a fixed clamping arm 322, a movable clamping arm 323, an adjusting arm 324, a movable clamping block 325 and a handle 326, wherein the fixed clamping arm 322, the movable clamping arm 323 and the adjusting arm 324 are all arranged in a long rod shape, one end of the fixed clamping arm 322 is fixedly connected with one end of the adjusting arm 324, generally, the fixed clamping arm 322 and the adjusting arm 324 are fixedly connected with each other in an integrated connection manner, the fixed clamping arm 322 is perpendicular to the adjusting arm 324, and the fixed clamping arm 322 and the adjusting arm 324 form an L-shaped structure.

In addition, a through hole is formed in one end of the movable clamping arm 323 in a penetrating mode, the aperture length of the through hole is larger than the width of the adjusting arm 324, the adjusting arm 324 penetrates through the through hole, the movable clamping arm 323 is connected to the adjusting arm 324 in a sleeved mode through the through hole, the surface of the adjusting arm 324 is in sliding abutting joint with the wall of the through hole, at the moment, one end of the movable clamping arm 323 is in sliding connection with the adjusting arm 324, and the movable clamping arm 323 can be adjusted in a sliding mode along the length direction of the adjusting arm 324; meanwhile, the aperture length of the through hole is greater than the width of the adjusting arm 324, so that the movable clamping arm 323 can swing relative to the adjusting arm 324, and here, the movable clamping arm 323 and the fixed clamping arm 322 include at least two states, and in the first state, the movable clamping arm 323 and the fixed clamping arm 322 are parallel to each other, and at this time, the adjusting arm 324 has a larger gap in the through hole, and the movable clamping arm 323 can slide and adjust on the adjusting arm 324; when the movable clamping arm 323 and the fixed clamping arm 322 are in the second state, the movable clamping arm 323 deflects towards the side away from the fixed clamping arm 322, at this time, the gap of the through hole is reduced, the two side walls opposite to the through hole are clamped to the two side surfaces opposite to the adjusting arm 324, and the movable clamping arm 323 can be fixed at the adjusting arm 324 at this time.

In addition, a threaded hole is formed in one end, away from the adjusting arm 324, of the movable clamping arm 323, the screw rod 321 penetrates through the threaded hole and is in threaded connection with one end, away from the adjusting arm 324, of the movable clamping arm 323, at this time, one end of the screw rod 321 is opposite to the fixed clamping arm 322, the movable clamping block 325 can be movably connected to one end, facing the fixed clamping arm 322, of the screw rod 321 in a ball-end hinged manner, and meanwhile, the handle 326 is fixedly mounted at one end, away from the movable clamping block 325, of the screw rod 321.

In the process of clamping and fixing the movable positioning seat 31, firstly, the movable clamping arm 323 can slide on the adjusting arm 324, so that the space distance between the screw rod 321 and the fixed clamping arm 322 is greater than the thickness dimensions of the workbench 13 and the movable positioning seat 31, the fixed clamping arm 322 is immediately moved to the lower part of the workbench 13, the screw rod 321 is immediately moved to the upper part of the movable positioning seat 31, the handle 326 is immediately rotated to rotate the screw rod 321, in the process, the screw rod 321 moves towards the fixed clamping arm 322 until the movable clamping block 325 at one end of the screw rod 321 is abutted against the movable positioning seat 31, and in the process, under the action of the ball joint, the movable clamping block 325 can be tightly attached to the movable positioning seat 31; subsequently, as the screw 321 rotates, the fixed clamping arm 322 abuts against the workbench 13, and the screw 321 pushes the movable clamping arm 323 to swing relative to the adjusting arm 324, so that the movable clamping arm 323 is fixed on the adjusting arm 324, the movable positioning seat 31 is fixedly mounted, the mounting position of the movable positioning seat 31 on the workbench 13 can be adjusted according to the actual positioning requirement of the workpiece, and the clamp 32 is loosened and clamped in the adjusting process.

Further, for promoting the position accuracy that second location sand grip 5 put to workstation 13, two second location sand grip 5 of fixedly connected with on the workstation 13, second location sand grip 5 is the square bar form setting, the mode fixed mounting of second location sand grip 5 accessible nail of knocking into is on workstation 13, second location sand grip 5 sets up along the horizontal direction, and two second location sand grip 5 are parallel to each other, second location sand grip 5 is located the both sides of activity positioning seat 31 respectively, the both sides lateral wall that the activity positioning seat 31 was carried on the back mutually respectively with two second location sand grip 5 looks butt. Here, the second positioning protruding strips 5 can attach and position two sides of the movable positioning seat 31, so that the position accuracy and stability of the movable positioning seat 31 when being placed on the worktable 13 are further improved.

Referring to fig. 3, to perform press-down reinforcement on the workpiece, the third positioning assembly 4 includes an adjusting bracket 41, a telescopic cylinder 42, and an abutting block 43. The adjusting bracket 41 is used for mounting the telescopic cylinder 42 and adjusting the setting position of the telescopic cylinder 42. It is specific, adjust support 41 fixed connection on workstation 13, adjust support 41 and include montant 411, horizontal pole 412 and cross connecting block 413, the bottom fixed mounting of montant 411 is on workstation 13, cross connecting block 413 can be dismantled and connect on montant 411, wherein, cross connecting block 413 also can be replaced by a type of connected node such as cross pipe card, the screw has on the cross connecting block 413, through loosening and screwing on the screw, can realize the dismouting between montant 411 and the cross connecting block 413, when cross connecting block 413 takes off with the mutual dismouting of montant 411, cross connecting block 413 can rotate for montant 411.

Meanwhile, one end of the cross rod 412 is fixedly arranged on the cross connecting block 413, the other end of the cross rod 412 extends to be close to the position right above the first positioning assembly 2, and the cross connecting block 413 can drive the cross rod 412 to rotate in the rotating process; the telescopic cylinder 42 is selected as an air cylinder, the telescopic cylinder 42 can also be a hydraulic oil cylinder, the telescopic cylinder 42 capable of achieving the telescopic function can be used, the telescopic cylinder 42 is arranged on the cross rod 412, wherein the telescopic cylinder 42 can be fixedly arranged on the cross rod 412, the telescopic cylinder 42 can also be rotatably arranged on the cross rod 412, and when the telescopic cylinder 42 is rotatably arranged on the cross rod 412, the telescopic angle of a telescopic rod of the telescopic cylinder 42 can be adjusted. When the telescopic cylinder 42 is in a conventional use state, the telescopic rod of the telescopic cylinder 42 is vertically arranged downwards, the telescopic rod of the telescopic cylinder 42 is opposite to the workbench 13, and the abutting block 43 is fixedly arranged on the telescopic rod of the telescopic cylinder 42, wherein the abutting block 43 can be a rubber block or a silica gel block. In the process of reinforcing the workpiece, the telescopic cylinder 42 is started, the telescopic rod of the telescopic cylinder 42 drives the abutting block 43 to vertically move downwards until the abutting block 43 abuts against and is attached to the top of the workpiece, and the abutting block 43 presses the workpiece downwards to fix the workpiece.

The implementation principle of a woodworking routing equipment in the embodiment of the application is as follows: in the process of positioning the workpiece, the workpiece is firstly placed on the friction pad 22, then, the side walls of two adjacent sides of the workpiece are respectively attached to the first vertical plane 211 and the second vertical plane 311, at the moment, the first positioning assembly 2 and the second positioning assembly 3 support two adjacent sides of the workpiece, the telescopic cylinder 42 is started, the telescopic rod drives the abutting block 43 to move downwards and abut against the workpiece, the workpiece is pressed and reinforced, the workpiece is finally positioned, and the position precision and the stability during machining of the workpiece are improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a woodworking routing equipment, includes equipment body (1), equipment body (1) includes workstation (13) and drill bit (14), its characterized in that: the drilling machine further comprises a first positioning assembly (2) and a second positioning assembly (3), wherein the first positioning assembly (2) is arranged on the workbench (13), the first positioning assembly (2) is positioned on one side adjacent to the drill bit (14), and a first vertical plane (211) is arranged on the first positioning assembly (2);

the second positioning component (3) is arranged on the workbench (13), the second positioning component (3) is located on one side of the first positioning component (2), the second positioning component (3) is provided with a second vertical plane (311), and the first vertical plane (211) and the second vertical plane (311) are used for being respectively attached and abutted to two adjacent sides of a workpiece.

2. The woodworking routing apparatus of claim 1, wherein: first locating component (2) include first location sand grip (21), first location sand grip (21) fixed connection in on workstation (13), the length direction of first location sand grip (21) with the drilling direction of drill bit (14) hangs down mutually, first vertical plane (211) are located first location sand grip (21) are the back to one side of drill bit (14).

3. The woodworking routing apparatus of claim 1, wherein: the second positioning assembly (3) comprises a movable positioning seat (31) and a clamp (32), the movable positioning seat (31) is placed on the workbench (13), and the clamp (32) is used for clamping and fixing the movable positioning seat (31) and the workbench (13).

4. The woodworking routing apparatus of claim 3, wherein: anchor clamps (32) include screw rod (321), fixed arm lock (322), activity arm lock (323) and regulating arm (324), the one end of fixed arm lock (322) with the one end looks fixed connection of regulating arm (324), fixed arm lock (322) with regulating arm (324) are mutually perpendicular, the one end of activity arm lock (323) with regulating arm (324) slide and connect, activity arm lock (323) can for regulating arm (324) beat, screw rod (321) threaded connection in activity arm lock (323) are kept away from the one end of regulating arm (324), the one end of screw rod (321) with fixed arm lock (322) are relative.

5. The woodworking routing apparatus of claim 1, wherein: still include third locating component (4), third locating component (4) are including adjusting support (41), telescoping cylinder (42) and butt piece (43), adjust support (41) fixed connection in on workstation (13), telescoping cylinder (42) fixed connection in adjust on support (41), the vertical downward setting of telescopic link of telescoping cylinder (42), the telescopic link of telescoping cylinder (42) with workstation (13) are relative, butt piece (43) fixed connection in on the telescopic link of telescoping cylinder (42).

6. The woodworking routing apparatus of claim 5, wherein: adjust support (41) and include montant (411), horizontal pole (412) and cross connecting block (413), the bottom fixed connection of montant (411) in on workstation (13), cross connecting block (413) can dismantle connect in on montant (411), the one end fixed connection of horizontal pole (412) in on cross connecting block (413), telescoping cylinder (42) set up in on horizontal pole (412).

7. The woodworking routing apparatus of claim 2, wherein: the first positioning assembly (2) further comprises a friction pad (22), and the friction pad (22) is fixedly connected to the workbench (13).

8. The woodworking routing apparatus of claim 3, wherein: two second positioning convex strips (5) are fixedly connected to the workbench (13), the second positioning convex strips (5) are respectively located on two sides of the movable positioning seat (31), and the movable positioning seat (31) is respectively abutted to the second positioning convex strips (5).