CN207563486U - A kind of bender for being conveniently replaceable upper slitter - Google Patents

Abstract

The utility model discloses a kind of benders for being conveniently replaceable upper slitter,Its key points of the technical solution are that including rack,Wallboard positioned at rack both sides,The clamping plate and the abutting arrangement positioned at rack rear being connect above rack and with wallboard,Clamping plate lower end is fixedly connected with rear baffle,Rubber slab on several has been bolted on rear baffle,Each upper rubber slab is connected with intermediate plate,Intermediate plate is between upper rubber slab and rear baffle and intermediate plate is bolted in rear baffle,Lower rubber slab has been bolted in each intermediate plate lower end far from rear baffle one end,Lower rubber slab is connected with upper slitter,Upper slitter is between lower rubber slab and rear baffle,Common rotation is connected with rotation axis on the wallboard of both sides,Cam is installed in the rotation axis at corresponding each lower rubber Board position,It is installed with handle on the rotating shaft,Upper slitter can be clamped or loosen by having reached swing handle,It is convenient for changing the effect of upper slitter.

Description

A kind of bender for being conveniently replaceable upper slitter

Technical field

The utility model is related to steel plate manufacture field, more particularly to a kind of bender for being conveniently replaceable upper slitter.

Background technology

Bender is a kind of machine that bending can be carried out to thin plate, is powered by conducting wire to coil during use, right after energization Pressing plate generates gravitation, so as to fulfill the clamping of the thin plate between pressing plate and pedestal.It is clamped as a result of electromagnetic force so that pressing plate Various workpieces requirement can be made, and the workpiece for having side wall can be processed, it is also very easy in operation.

Existing to can refer to the Chinese patent that Authorization Notice No. is CN203197160U, it discloses a kind of bender, packets Including rack, the rack left and right sides are equipped with wallboard, and central rack is horizontally arranged with workbench between the wallboard of both sides, the bender bottom Portion is equipped with the bottom girder of front and rear side between the framed side wallboard of left and right, and the bottom girder is equipped with X-axis mechanism, and the X-axis mechanism is equipped with R axis Elevating mechanism, the R axis elevating mechanism are equipped with crossbeam, Dang Zhi mechanisms are set on the crossbeam；In the left side of bender rack Sender unit is equipped on rear side of wallboard, the corresponding sender unit of wallboard rear side is provided with signal on the right side of bender rack Receiving device, the signal receiving device are connect with bender control system by signal.The utility model uses surface protection Body is locked to refer to sliding block to gear, and surface protection body will not damage sliding rail, be avoided that the damage on sliding rail surface.Together When, the corresponding back material stopping of the utility model rear side is provided with electronic safety protection device, ensures the operational safety of equipment.

Staff needs to open whole latch assemblies successively when if desired frequently replacing or move upper slitter, and operation is very numerous It is trivial.

Utility model content

The purpose of this utility model is to provide a kind of bender for being conveniently replaceable upper slitter, can be controlled by simple operations The clamping of knife is with loosening.

The above-mentioned technical purpose of the utility model technical scheme is that：

A kind of bender for being conveniently replaceable upper slitter, including rack, positioned at the wallboard of rack both sides, above rack and with The clamping plate and the abutting arrangement positioned at rack rear of wallboard connection, clamping plate lower end is fixedly connected with rear baffle, in rear baffle On be bolted several upper rubber slabs, each upper rubber slab is connected with intermediate plate, and intermediate plate is located at upper rubber slab and keeps off afterwards Between plate and intermediate plate is bolted in rear baffle, has been bolted in each intermediate plate lower end far from rear baffle one end Lower rubber slab, lower rubber slab are connected with upper slitter, and upper slitter is between lower rubber slab and rear baffle, the common rotation on the wallboard of both sides Rotation axis is connected with, cam is installed in the rotation axis at corresponding each lower rubber Board position, is installed on the rotating shaft Handle.

By using said program, when staff needs replacing upper slitter, only need swing handle that can loosen upper slitter, change Handle is rotated further by after knife, cam can clamp upper slitter, prevent upper slitter that relative displacement occurs.

Preferably, cam allows the cambered surface of cam that can be connected to lower rubber slab in the drops of reversely lower rubber plate benging On.

By using said program, one end that cam protrudes is pressed on lower rubber slab, reversely lower rubber plate benging It represents that the cambered surface of cam is pressed on lower rubber slab, increases contact area, can preferably transmit stress.

Preferably, strut is installed on the wallboard at corresponding handling position, it is fixed on the strut close to handle side There is back-moving spring, back-moving spring opposite side, which is detachably fixed, to be connected on handle, and back-moving spring is given handle one and transported to strut Dynamic power.

By using said program, when needing to clamp upper slitter, back-moving spring makes cam always to lower rubber by handle Plate is with pressure so that upper slitter can press from both sides tighter, prevent rotation axis loosening cause during the work time upper slitter be subjected to displacement.

Preferably, being bolted connector sleeve on handle, back-moving spring is fixedly connected on connector sleeve.

By using said program, back-moving spring can be detached by connector sleeve from handle, and staff is allowed to need more Reversed back-moving spring stress acting is not needed to again when changing knife, the muscle power of staff is saved, prevents from influencing due to back-moving spring Normal tool changing.

Preferably, being installed with ratchet on the rotating shaft, correspond to and be hinged at ratchet position and ratchet cooperation in wallboard Pawl.

By using said program, after staff rotates handle to suitable position, by between ratchet and pawl Cooperation, can fixed bias circuit, prevent that accident occurs during the work time.

Preferably, being installed with main hydraulic cylinder on wallboard, main hydraulic cylinder is connected with drive block, and drive block is fixedly connected on folder On tight plate, accessory plate is installed on the wallboard at corresponding drive block position, if being threaded with dry repair spiral shell on the auxiliary board Bolt, maintenance bolt one end are abutted with drive block.

By using said program, main hydraulic cylinder is for driving clamping plate to move up and down, when needing to overhaul clamping plate or more When changing mobile upper slitter, clamping plate is promoted, screwing on maintenance bolt can prevent clamping plate from causing the accident because of unexpected whereabouts.

Preferably, being installed with workbench before rack, workbench includes being respectively fixedly connected with two on the wallboard of both sides Fixed block, the fromer rail being fixedly connected among two fixed blocks and sliding are connected to the left limit plate on fromer rail.

By using said program, staff's left limit plate in bending steel plate can determine the left and right of steel plate with respect to position It puts, left limit plate is because can slide staff can be by sliding left limit in the steel plate for processing different type demand Position plate determines different relative positions.

Preferably, sliding is connected with right limit plate on fromer rail.

By using said program, left limit plate and the cooperation of right limit plate can form a slot, and staff is by steel plate The left and right relative position of steel plate can not only be determined by being positioned in slot, moreover it is possible to be prevented steel plate from occurring crooked, be influenced product quality.

Preferably, array offers threaded hole on fromer rail, on the left limit plate and right limit plate of corresponding threaded hole It is threaded with fixing bolt.

By using said program, after left limit plate and right limit plate are adjusted to suitable position by staff, due to Left limit plate and right limit plate are it is also possible to slide, so staff needs to tighten fixing bolt, by left limit plate and Right limit plate is fixed.

In conclusion the utility model has the advantages that：

1. when staff needs replacing upper slitter, only need swing handle that can loosen upper slitter, be rotated further by after tool changing Handle, cam can clamp upper slitter, prevent upper slitter that relative displacement occurs；

2. when needing to clamp upper slitter, back-moving spring makes cam always to lower rubber slab with pressure by handle so that on Knife can press from both sides tighter, prevent rotation axis loosening cause during the work time upper slitter be subjected to displacement；

3. back-moving spring can be detached by connector sleeve from handle, staff is allowed not needed to again when needing replacing upper slitter Reversed back-moving spring stress acting, saves the muscle power of staff, prevents from influencing normal tool changing due to back-moving spring；

4. after staff rotates handle to suitable position, by the cooperation between ratchet and pawl, can fix Rotation axis prevents that accident occurs during the work time.

Description of the drawings

Fig. 1 is the overall structure diagram of bender in embodiment；

Fig. 2 is the enlarged drawing of part A in Fig. 1；

Fig. 3 is the schematic diagram of prominent abutting arrangement and wallboard in embodiment；

Fig. 4 is the partial schematic diagram of prominent clamping plate lower end structure in embodiment；

Fig. 5 is the partial schematic diagram of prominent Working table structure in embodiment；

Fig. 6 is the schematic diagram of prominent master hydraulic bar structure in embodiment；

Fig. 7 is the partial schematic diagram of prominent abutting arrangement in embodiment；

Fig. 8 is the enlarged drawing of part B in Fig. 7；

Fig. 9 is the explosive view of prominent Telescopic rod structure in embodiment；

Figure 10 is the schematic diagram of prominent rack construction in embodiment；

Figure 11 is the prominent explosive view for abutting modular construction in embodiment.

In figure, 1, rack；11st, it cuts；12nd, workbench；121st, fixed block；122nd, fromer rail；1221st, threaded hole；123、 Left limit plate；1231st, fixing bolt；124th, right limit plate；15th, sliding channel；16th, straight slot is connected；2nd, wallboard；21st, main hydraulic pressure Cylinder；22nd, accessory plate；221st, bolt is overhauled；23rd, side chute；24th, motor base；25th, strut；251st, back-moving spring；26th, it rotates Axis；261st, ratchet；2611st, pawl；262nd, handle；2621st, connector sleeve；263rd, cam；3rd, clamping plate；31st, drive block；32nd, on Rubber slab；321st, upper protrusion；33rd, rear baffle；34th, intermediate plate；341st, buckling groove；35th, lower rubber slab；351st, lower convexity；36th, on Knife；361st, knife sliding slot；4th, abutting arrangement；41st, numerical-control motor；411st, wire lever；42nd, positioning table；421st, rear rail；43rd, it assists Bar；431st, contraction spring；432nd, control-rod；4321st, pedal；4322nd, lever shaft；4323rd, rear hollow stem；4324th, extension bar； 4325th, preceding hollow stem；433rd, cable wire；44th, component is abutted；441st, locating piece；4411st, guide-track groove；442nd, slot is abutted；443rd, it abuts Part；4431st, butt junction；444th, leading screw is finely tuned；4441st, the first commutator；4442nd, drive link；4443rd, the second commutator；4444、 Rear telescopic rod；4445th, prismatic bar；4446th, front stretching bar；4447th, hand-operated wheel.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts Label represents.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to It is the direction in attached drawing, word " bottom surface " and " top surface ", " interior " and " outer " are referred respectively to towards or away from particular elements geometry The direction at center.

Embodiment：A kind of bender for being conveniently replaceable upper slitter, with reference to Fig. 1 and Fig. 3, including rack 1, positioned at 1 both sides of rack Wallboard 2, the clamping plate 3 positioned at 1 upper end of rack and the abutting arrangement 4 positioned at 1 rear of rack.Terminal bolt connects in rack 1 It is connected to and cuts 11.

With reference to Fig. 1 and Fig. 4, rear baffle 33 is installed in 3 lower end of clamping plate, has been bolted in 33 front end of rear baffle multiple Upper rubber slab 32, each above 32 lower end of rubber slab is installed with raised 321, and 32 rear end of rubber slab is equipped with centre on each Plate 34 offers buckling groove 341 on the intermediate plate 34 in correspondence at raised 321 positions, and upper raised 321 are connected in buckling groove In 341, intermediate plate 34 is between upper rubber slab 32 and rear baffle 33 and intermediate plate 34 is bolted in rear baffle 33, every A 34 front end of intermediate plate has been bolted lower rubber slab 35, and lower convexity 351 is installed in each lower 35 bottom end of rubber slab, Upper slitter 36 is equipped between lower rubber slab 35 and rear baffle 33, offering knife on the upper slitter 36 at corresponding 351 position of lower convexity slides Slot 361, upper raised 321 are connected in knife sliding slot 361, and upper slitter 36 is enable to be slided between lower rubber slab 35 and rear baffle 33.

With reference to Fig. 1 and Fig. 2,2 central rotational of both sides wallboard under correspondence at 35 position of rubber slab is connected with rotation axis 26, Cam 263, the reversed lower rubber slab of cam 263 have been fixedly connected in the rotation axis 26 at corresponding each lower 35 position of rubber slab The drops of 35 bendings, allows cambered surface to be connected on lower rubber slab 35, makes 263 downward 35 power transmission of rubber slab of cam evenly.It is passing 4442 both ends of lever have been fixedly connected with ratchet 261, and pawl 2611, spine are hinged on the wallboard 2 at corresponding 261 position of ratchet Pawl 2611 prevents rotation axis 26 from rotating counterclockwise with the cooperation of ratchet 261 makes cam 263 be detached with lower rubber slab 35.

Handle 262 is also fixedly connected in 26 both sides of rotation axis, staff can control cam 263 by handle 262 It compresses lower rubber slab 35 or is detached with lower rubber slab 35.Connector sleeve 2621 is bolted on handle 262, in connector sleeve 2621 On be fixedly connected with back-moving spring 251, be installed with strut 25, back-moving spring on the wallboard 2 at corresponding 251 position of back-moving spring 251 other ends are fixedly connected on strut 25, the power that handle 262 is made to be rotated clockwise always to rotation axis 26, allow cam 263 1 Directly to lower 35 1 power compressed of rubber slab, help clamps upper slitter 36, lower joint sleeve need to be only dismantled when needing replacing upper slitter 36 2621 can allow back-moving spring 251 to be detached from handle 262, and back-moving spring 251 is avoided to influence staff's tool changing.

With reference to Fig. 1 and Fig. 5, workbench 12 is installed with before rack 1, workbench 12 includes being fixedly connected on 1 both ends of rack Fixed block 121, be fixedly connected among both ends fixed block 121 fromer rail 122, be slidably connected to the left limit of fromer rail 122 Position plate 123 and the right limit plate 124 for being slidably connected to fromer rail 122, array offers multiple threaded holes on fromer rail 122 1221, it is threaded with fixing bolt 1231 on the corresponding left limit plate 123 of threaded hole 1221 and right limit plate 124.It is left Limiting plate 123 and right limit plate 124 can help staff to determine the left and right relative position of steel plate and can prevent steel plate Occur in the process of bending crooked.

With reference to Fig. 2 and Fig. 6, main hydraulic cylinder 21 is installed on wallboard 2, main hydraulic cylinder 21 is fixedly connected with drive block 31, Drive block 31 is fixedly connected on clamping plate 3, staff by control main hydraulic cylinder 21 control the rising of clamping plate 3 and under Drop.Accessory plate 22 is installed on the wallboard 2 close to drive block 31, the screw thread on the accessory plate 22 at corresponding 31 position of drive block Maintenance bolt 221 is connected with, needs to tighten maintenance bolt 221 when staff will keep clamping plate 3 to be under lifting state, The relative position that bolt 221 is capable of fixed clamping plate 3 and wallboard 2 with the cooperation of main hydraulic cylinder 21 is overhauled, prevents clamping plate 3 from falling, It causes the accident.

With reference to Fig. 7 and Fig. 8, abutting arrangement 4 include numerical-control motor 41, the wire lever 411 that is connect with numerical-control motor 41 and with The positioning table 42 that leading screw 411 is threadedly coupled.Motor base 24 is installed on the wallboard 2 at corresponding 41 position of numerical-control motor, number Control motor 41 is fixedly arranged on motor base 24, and side chute 23 is fixedly connected on the wallboard 2 at corresponding 411 position of wire lever, Positioning table 42 is slidably connected in side chute 23.It is equipped on positioning table 42 and abuts component 44, abutted component 44 and include locating piece 441st, the abutting slot 442 being fixedly connected on locating piece 441 and the fitting 443 being slidably connected in abutting slot 442.It is positioning Rear rail 421 is installed on platform 42, the guide-track groove 4411 coordinated with rear rail 421, locating piece are offered in 441 bottom end of locating piece 441 are slidably connected on rear rail 421.443 front end of fitting is hinged with butt junction 4431, can when not needing to butt junction 4431 Butt junction 4431 is overturn up.

Slidably connect auxiliary rod 43 respectively in 42 both sides of positioning table, each 43 upper end of auxiliary rod is installed with contraction spring 431,431 other end of contraction spring is fixedly arranged on positioning table 42, and cable wire 433, cable wire 433 are installed on two 43 tops of auxiliary rod It is connected to and abuts on component 44.Contraction spring 431 gives auxiliary rod 43 downward power, and auxiliary rod 43 is made to give cable wire 433 downward power, Cable wire 433 is made to be pressed against abutting component 44, plays the role of fixed abutting component 44.

With reference to Fig. 7 and Fig. 9,43 bottom end of auxiliary rod is hinged with control-rod 432, and control-rod 432 includes hinged with auxiliary rod 43 Rear hollow stem 4323, the extension bar 4324 that is set in hollow pipe and the preceding hollow stem 4325 for being set in 4324 other end of extension bar. Control-rod 432 can stretch therewith with the back-and-forth motion of abutting arrangement 4.It opens 1 bottom end of rack at corresponding 432 position of control-rod Equipped with connection straight slot 16 (referring to Figure 10), control-rod 432 passes through connection straight slot 16 to set, and connection straight slot is passed through in control-rod 432 16 one end is installed with pedal 4321, is connected with lever shaft 4322 in 4324 central rotational of connecting rod, 4322 both ends of lever shaft are consolidated Surely it is connected on both sides wallboard 2, staff is made, which to step on pedal 4321, can allow auxiliary rod 43 to rise, and make cable wire 433 with abutting Component 44 detaches, and abutting component 44 can be slided on rear rail 421.

With reference to Fig. 7 and Figure 11, fine tuning leading screw 444 (referring to Fig. 8) is rotatably connected in 443 end of fitting, finely tunes leading screw 444 are bolted in abutting on slot 442,442 part of abutting slot are passed through to be connected with the first commutator 4441 in fine tuning leading screw 444, First commutator, 4441 other end is connected with drive link 4442, and 4442 other end of drive link is connected with the second commutator 4443, the Two commutators 4443 are connected with rear telescopic rod 4444, and prismatic bar 4445 is arranged in rear telescopic rod 4444, and prismatic bar 4445 is another End cap is equipped with front stretching bar 4446, and 4446 other end of front stretching bar is fixedly connected with hand-operated wheel 4447.In corresponding front stretching bar Sliding channel 15 (referring to Figure 10) is offered in rack 1 at 4446 positions, front stretching bar 4446 is set across sliding channel 15 And front stretching bar 4446 can slide in sliding channel 15.Front stretching bar 4446 and 4444 staff of rear telescopic rod can pass through It rotates hand-operated wheel 4447 and carries out the fine tuning of butt-joint 4431, while abutting group can be moved left and right by sliding front stretching bar 4446 Part 44 due to rear telescopic rod 4444 and front stretching bar 4446, the cooperation of prismatic bar 4445, is not influencing to abut the front and rear shifting of component 44 While dynamic, hand-operated wheel 4447 can still drive fine adjustment screw to rotate.

Occupation mode：Before bending is carried out to steel plate, it can be adjusted roughly by numerical-control motor 41 before abutting component 44 Position afterwards, numerical-control motor 41 drive wire lever 411 to rotate, and control positioning table 42 slides back and forth in side chute 23.Step on pedal 4321, pedal 4321 rises auxiliary rod 43, and cable wire 433 is lifted, and then rotates hand-operated wheel 4447, drives front stretching bar 4446 Rotation, front stretching bar 4446 drive prismatic bar 4445 to rotate, and the rotation of prismatic bar 4445 drives rear telescopic rod 4444 to rotate, rear flexible The rotation of bar 4444 drives drive link 4442 to rotate by the second commutator 4443, and the rotation of drive link 4442 passes through the first commutator 4441 drive fine tuning leading screw 444 to rotate, and then complete the fine tuning to abutting component 44.Then dragging hand-operated wheel 4447 will abut group Part 44 modulates suitable position, unclamps pedal 4321, is pushed down under cable wire 433 and abut component 44, fix abutting component 44.

Butt junction 4431 can overturn butt junction 4431 up at the space for needing bigger, with regard to that can obtain the sky of bigger Between.Different according to bending steel plate can determine the left and right of steel plate with respect to position by sliding left limit plate 123 and right limit plate 124 It puts, left limit plate 123 and right limit plate 124 is then fixed by fixing bolt 1231.

Staff controls the lifting of clamping plate 3 by controlling main hydraulic cylinder 21, by upper slitter 36 and cuts 11 and matches It closes and carrys out bending steel plate.When needing replacing upper slitter 36, clamping plate 3 is promoted first, then with maintenance 221 fixed clamping plate of bolt 3 relative position detaches back-moving spring 251 with handle 262, then rotates pawl 2611, contact ratchet 261 and pawl 2611 Self-locking, last swing handle 262 can allow unclamp upper slitter 36.

Rotary pawl 2611 after upper slitter 36 has been replaced, pawl 2611 has been stuck on ratchet 261, then rotating handles 262, allowed Cam 263 is connected on lower rubber slab 35 and to lower 35 1 power compressed of rubber slab, back-moving spring 251 finally is passed through connection Set 2621 is bolted on handle 262, completes the fixation to upper slitter 36.

This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but As long as it is all protected in the right of the utility model by Patent Law.

Claims (9)

1. a kind of bender for being conveniently replaceable upper slitter, including rack (1), positioned at the wallboard (2) of rack (1) both sides, positioned at rack (1) top and the clamping plate (3) being connect with wallboard (2) and the abutting arrangement (4) positioned at rack (1) rear, it is characterised in that：Folder Tight plate (3) lower end is fixedly connected with rear baffle (33), several upper rubber slabs (32) has been bolted on rear baffle (33), each Upper rubber slab (32) is connected with intermediate plate (34), intermediate plate (34) between upper rubber slab (32) and rear baffle (33) and Intermediate plate (34) is bolted in rear baffle (33), in the equal bolt in each intermediate plate (34) lower end far from rear baffle (33) one end Lower rubber slab (35) is connected with, lower rubber slab (35) is connected with upper slitter (36), and upper slitter (36) is positioned at lower rubber slab (35) and rear gear Between plate (33), common rotation is connected with rotation axis (26) on both sides wallboard (2), in corresponding each lower rubber slab (35) position Cam (263) is installed in the rotation axis (26) at place, handle (262) is installed in rotation axis (26).

2. a kind of bender for being conveniently replaceable upper slitter according to claim 1, it is characterised in that：Cam (263) is in reversed The drops of lower rubber slab (35) bending, the cambered surface of cam (263) can be connected on lower rubber slab (35).

3. a kind of bender for being conveniently replaceable upper slitter according to claim 1, it is characterised in that：In corresponding handle (262) Strut (25) is installed on wallboard (2) at position, back-moving spring is installed on the strut (25) close to handle (262) side (251), back-moving spring (251) opposite side, which is detachably fixed, is connected on handle (262), and back-moving spring (251) gives handle (262) power moved to strut (25).

4. a kind of bender for being conveniently replaceable upper slitter according to claim 3, it is characterised in that：The spiral shell on handle (262) It tethers and is connected to connector sleeve (2621), back-moving spring (251) is fixedly connected on connector sleeve (2621).

5. a kind of bender for being conveniently replaceable upper slitter according to claim 1, it is characterised in that：It is solid in rotation axis (26) Equipped with ratchet (261), the pawl coordinated with the ratchet (261) is hinged at corresponding ratchet (261) position of wallboard (2) (2611)。

6. a kind of bender for being conveniently replaceable upper slitter according to claim 1, it is characterised in that：It is fixed on wallboard (2) There is main hydraulic cylinder (21), main hydraulic cylinder (21) is connected with drive block (31), and drive block (31) is fixedly connected on clamping plate (3), Be installed with accessory plate (22) on the wallboard (2) at corresponding drive block (31) position, in accessory plate (22) if on be threaded with Dry repair bolt (221), maintenance bolt (221) one end are abutted with drive block (31).

7. a kind of bender for being conveniently replaceable upper slitter according to claim 1, it is characterised in that：It is fixed before rack (1) There is a workbench (12), workbench (12) includes two fixed blocks (121), fixed for being respectively fixedly connected on both sides wallboard (2) The fromer rail (122) and sliding that are connected among two fixed blocks (121) are connected to the left limit plate (123) on fromer rail (122).

8. a kind of bender for being conveniently replaceable upper slitter according to claim 7, it is characterised in that：On fromer rail (122) Sliding is connected with right limit plate (124).

9. a kind of bender for being conveniently replaceable upper slitter according to claim 7, it is characterised in that：On fromer rail (122) Array offers threaded hole (1221), the screw thread on the left limit plate (123) of corresponding threaded hole (1221) and right limit plate (124) It is connected with fixing bolt (1231).