CN212762734U

CN212762734U - Promote material loading grinding device

Info

Publication number: CN212762734U
Application number: CN202021158748.1U
Authority: CN
Inventors: 陈达幸
Original assignee: NINGBO YINZHOU DAXING FEIBIAO EQUIPMENT FACTORY
Current assignee: NINGBO YINZHOU DAXING FEIBIAO EQUIPMENT FACTORY
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-03-23
Anticipated expiration: 2030-06-19

Abstract

The utility model relates to a promote material loading grinding device, including installation frame, grinding mechanism and fixture, grinding mechanism includes grinding frame and rotates the emery wheel of installing on grinding frame and the rotatory emery wheel driving piece of drive emery wheel, and fixture includes that the lift slides and installs support piece in the installation frame, is located the piece and the drive support piece of pushing down directly over support piece are close to or keep away from the elevating system of pushing down the piece, push down the piece slide install in installation frame and have the trend of downstream all the time, form between support piece top and the piece bottom of pushing down and be used for the centre gripping to treat the processing work piece and be located the work piece clamping area of machined surface one side of emery wheel drives the work piece that is located the work piece clamping area when support piece promotes the motion and treats the processing position and be close to until the butt the machined surface of emery wheel. The utility model discloses convenient operation, effect that machining efficiency is high have.

Description

Promote material loading grinding device

Technical Field

The utility model belongs to the technical field of the grinding technique and specifically relates to a promote material loading grinding device is related to.

Background

The magnetic steel is generally an alnico alloy, the magnetic steel is synthesized by several hard strong metals, such as iron, aluminum, nickel, cobalt and the like, sometimes copper, niobium and tantalum, and is used for manufacturing the super-hardness permanent magnet alloy, the magnetic performance of the magnetic steel is different according to different metal components of the magnetic steel, so that the magnetic steel has different purposes, and the magnetic steel is mainly used in the fields of various sensors, instruments, electronics, electromechanics, medical treatment, teaching, automobiles, aviation, military technology and the like at present; according to different products, the shape of the magnetic steel is different, such as tile-shaped block, rectangular block, trapezoidal block, etc.

At present, the magnetic steel can be produced and manufactured by a powder metallurgy method, and is ground by a grinding device after production is finished, and the magnetic steel is mainly used for processing the surface or edge of the magnetic steel.

The conventional grinding device generally includes a frame, a grinding head mounted on the frame, and a clamping mechanism for clamping a workpiece, where the grinding head is a grinding wheel, and the grinding wheel rotates at a high speed to grind a workpiece surface to be processed clamped on the clamping mechanism. However, the existing magnetic steel surface usually has the grinding processing of an inclined plane, or the edge needs to be rounded and chamfered for the inclined plane, when the grinding device is used for processing, the angle of the grinding wheel is usually adjusted or the inclination angle of a clamped workpiece is adjusted in the processing process to carry out the grinding processing, the mechanism involved in the adjustment process is complex, the operation is inconvenient, and the processing efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a work piece centre gripping is convenient, machining efficiency is high promotes material loading grinding device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a promote material loading grinding device, includes the installation frame and installs grinding mechanism and fixture in the installation frame, and grinding mechanism includes the grinding frame and rotates the emery wheel of installing on the grinding frame and the rotatory emery wheel driving piece of drive emery wheel, and fixture includes that the lift slides and installs support piece in the installation frame, is located push down piece and drive support piece directly over the support piece are close to or keep away from the elevating system of push down piece, push down the piece slide install in the installation frame and have the trend of downstream all the time, form between support piece top and the push down piece bottom and be used for the centre gripping to treat the work piece and be located the work piece clamping area of machined surface one side of emery wheel, drive the work piece that is located the work piece clamping area when support piece promotes the motion and treat the machined surface that the machined part is close to until.

By adopting the technical scheme, a workpiece to be machined is placed at the top of the support piece, the part of the workpiece to be machined faces the machining surface of the grinding wheel, the lifting mechanism drives the support piece to move upwards in a lifting mode, when the top of the workpiece is abutted to the bottom of the pressing piece, the pressing piece always has the trend of moving downwards, so that the workpiece is clamped in a workpiece clamping area between the support piece and the pressing piece, the part of the workpiece to be machined is in contact with the machining surface of the grinding wheel in the lifting motion process of the support piece, the grinding wheel is driven by the grinding wheel driving piece to rotate at a high speed, the grinding machining of the machining part of the workpiece is realized, the workpiece is clamped and fed conveniently, and the machining efficiency is improved; the grinding wheel machining surface corresponding to the structure of the part to be machined of the workpiece is arranged according to the structure of the part to be machined of the workpiece, and the part to be machined of the workpiece is located on the grinding wheel machining surface, so that the grinding wheel machining device can adapt to workpieces with different structures, and is wide in application range.

The present invention may be further configured in a preferred embodiment as: elevating system includes the first direction subassembly of lift driving piece, preceding slide and vertical setting, and preceding slide passes through first direction subassembly slide install in the installation rack, support piece installs in preceding slide top, and the lift driving piece is connected with preceding slide and is driven elevating movement by the lift driving piece.

Through adopting above-mentioned technical scheme, slide vertical motion before the lift driving piece drive can drive support piece elevating movement to the work piece elevating movement who is located the support piece top is driven, when work piece rising movement, has realized promptly promoting the work piece and has made the work piece by the work piece clamping zone of centre gripping between support piece and holding down, thereby has also realized the promotion material loading of work piece to being carried out abrasive machining with the emery wheel contact.

The present invention may be further configured in a preferred embodiment as: the lower pressing piece comprises a mounting block fixedly mounted on the mounting frame and a lower pressing block movably connected to the mounting block in the vertical direction, and the bottom of the lower pressing block is provided with a butting part.

Through adopting above-mentioned technical scheme, the briquetting has the trend to support piece motion all the time down in the action of gravity, and when support piece promoted the motion, the butt of briquetting under the work piece butt on the support piece realized the centre gripping to the work piece when support piece continued the promotion motion.

The present invention may be further configured in a preferred embodiment as: the first guide assembly comprises a first guide rod and a first sliding block, the first guide rod is fixed on the installation rack and is vertically arranged, the first sliding block is fixedly connected to the first sliding block on the front sliding seat, a first vertical through hole is formed in the first sliding block, and the first sliding block slides through the first vertical through hole and is arranged on the first guide rod in a penetrating mode.

Through adopting above-mentioned technical scheme, through the cooperation of sliding of first guide bar and first slider for preceding slide drives support piece and can elevating movement simultaneously good stability, simple structure in the elevating movement in-process.

The present invention may be further configured in a preferred embodiment as: the lifting driving piece is a motor screw rod assembly or a cylinder assembly.

Through adopting above-mentioned technical scheme, slide elevating movement before through motor lead screw subassembly or cylinder subassembly drive can directly purchase current accessory, simple to operate and lift stability are good.

The present invention may be further configured in a preferred embodiment as: the lower pressing block is fixedly connected with the lower pressing block, a second guide assembly is arranged between the lower pressing block and the installation block and comprises a second guide rod and a second sliding block, the second guide rod and the second sliding block are fixed on the installation block and are vertically arranged, a second vertical through hole is formed in the second sliding block, the second sliding block slides through the second vertical through hole and penetrates through the second guide rod, the second sliding block is fixedly connected with the lower pressing block, and a limit stop block for preventing the second sliding block from being separated from the second guide rod is arranged at the lower end of the second guide rod.

Through adopting above-mentioned technical scheme, through the cooperation of sliding of second guide bar and second slider for lower briquetting can be along with second slider gliding movement on the second guide bar, and it is good to drive support piece elevating movement in-process stability, can prevent simultaneously that the second slider from breaking away from the second guide bar through limit stop.

The present invention may be further configured in a preferred embodiment as: the abutting part comprises a vertical abutting block and a lateral abutting block which are vertically and downwardly suspended, and the lateral abutting block is located below the vertical abutting block and far away from one side of the grinding wheel.

Through adopting above-mentioned technical scheme, when the work piece was placed at the support piece top, wait that the processing position is towards the emery wheel, when the work piece by the centre gripping in the work piece clamping area. The vertical butt joint block is abutted to the top surface of the workpiece, and the lateral butt joint block is abutted to one side surface of the workpiece far away from the grinding wheel, so that the workpiece is clamped more firmly in the grinding process, and the stability is better.

The present invention may be further configured in a preferred embodiment as: the supporting piece is provided with a supporting groove which is transversely penetrated for the transverse movement of the workpiece.

By adopting the technical scheme, the support groove which is transversely communicated is arranged on the support piece, the structure of the support groove can correspond to the shape of the processed workpiece, and meanwhile, the support piece can be directly and correspondingly arranged in the conveying guide rail of the workpiece, and the conveying guide rails of the front and the rear processes are connected, so that the workpiece does not need to be clamped and assembled and disassembled during grinding processing, and the work efficiency of workpiece processing is improved.

The present invention may be further configured in a preferred embodiment as: the grinding mechanism is provided with two, and two grinding mechanism symmetries are located fixture's both sides, support piece's top is provided with two interval's support groove, the bottom of lower briquetting be provided with two butt portion, two butt portion respectively with two support groove correspond the cooperation.

Through adopting above-mentioned technical scheme, through two grinding mechanisms, two grinding mechanisms can all have the work piece of taking the processing position to relative both sides respectively and process in proper order, and need not change the emery wheel, carry out centre gripping processing to the work piece simultaneously through a holding down piece, have improved machining efficiency.

The utility model discloses can further configure to in a good example: and a relative sliding mechanism for driving the two grinding mechanisms to synchronously move in opposite directions or back to back is arranged below the two grinding mechanisms.

By adopting the technical scheme, the relative sliding mechanism drives the two grinding mechanisms to move towards or away from each other, so that the synchronous feeding processing of the two grinding wheels is realized, and the processing efficiency is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the explosion structure of the support member of the present invention.

Fig. 3 is a schematic structural view of the supporting member of the present invention.

Fig. 4 is a schematic view of the structure of the lower pressing member of the present invention.

Fig. 5 is a schematic structural view of the relative sliding driving assembly of the present invention.

Fig. 6 is an exploded view of the relative sliding driving assembly of the present invention.

Fig. 7 is an enlarged schematic view at a in fig. 6.

In the figure, 1, a frame is installed; 11. an upper mounting plate; 12. a lower mounting plate; 2. a grinding mechanism; 3. a relative sliding mechanism; 31. a rear fixing plate; 32. a third guide assembly; 321. a third guide bar; 322. a third slider; 323. a guide stopper; 33. a rear sliding seat; 38. a roller seat; 34. a mounting seat; 35. a relative sliding drive assembly; 351. an isosceles trapezoid block; 352. connecting a bracket; 353. a roller; 354. a return spring; 36. adjusting and positioning the mechanism; 361. a column; 362. a chain assembly; 363. moving the cross shaft; 364. a drive handle; 37. a connecting through hole; 4. a grinding frame; 41. a grinding wheel; 5. a clamping mechanism; 51. a support member; 511. a support block; 512. a cantilever support; 513. a support groove; 52. a push-down member; 521. mounting blocks; 522. pressing the block; 5231. a second guide bar; 5232. a second slider; 523. a second guide assembly; 524. a first spring assembly; 5242. a spring guide rod; 5241. a first spring; 525. a vertical butt block; 526. a lateral abutment block; 53. a lifting mechanism; 531. a lifting drive member; 5311. a first nut seat; 5312. a first lift motor; 5313. a first lead screw; 532. a front slide; 533. a front fixing plate; 54. a first guide assembly; 541. a first guide bar; 542. a first slider; 543. a guide seat.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 to 7.

Referring to fig. 1, for the utility model discloses a promote material loading grinding device, including installing frame 1 and installing grinding mechanism 2 and fixture 5 on this installing frame 1, installing frame 1 is provided with mounting panel 11 and lower mounting panel 12, goes up mounting panel 11 and lower mounting panel 12 and is located same vertical plane and the certain distance in interval between the two, and grinding mechanism 2 installs in the rear side of lower mounting panel 12, and fixture 5 installs in the front side of lower mounting panel 12.

The grinding mechanisms 2 are arranged in two and are symmetrically arranged in the transverse direction, namely the length direction of the installation rack 1 at a certain distance, and the relative sliding mechanisms 3 are installed below the two grinding mechanisms 2. The grinding mechanism 2 comprises a grinding frame 4, a grinding wheel 41 rotatably mounted on the grinding frame 4 and a grinding wheel driving member for driving the grinding wheel 41 to rotate, the outer circular surface of the grinding wheel 41 is used as a working surface, the grinding mechanism 2 adopts a conventional grinding machine, and the mounting structure of the grinding wheel 41 and the specific connection relationship between the grinding wheel 41 and the grinding wheel driving member are not described in detail herein.

Referring to fig. 2 and 3, the clamping mechanism 5 includes a support 51 mounted on the mounting frame 1 in a sliding manner, a lower pressing member 52 located directly above the support 51, and a lifting mechanism 53 driving the support 51 to move closer to or away from the lower pressing member 52, the lower pressing member 52 is mounted on the upper mounting plate 11 in a sliding manner and always tends to move downward, a workpiece clamping area for clamping a workpiece to be machined and located on one side of the machining surface of the grinding wheel 41 is formed between the top of the support 51 and the bottom of the lower pressing member 52, and when the support 51 is lifted, the workpiece located in the workpiece clamping area is driven to move upward until the part to be machined of the workpiece abuts against the machining surface of the grinding wheel.

The supporting pieces 51 comprise supporting blocks 511 and inverted-L-shaped overhanging brackets 512, supporting grooves 513 which are transversely communicated are formed in the tops of the supporting blocks 511, the supporting blocks 511 are fixedly installed at the tops of the overhanging brackets 512 and are horizontal overhanging parts, two supporting pieces 51 are arranged in the embodiment, the two supporting pieces 51 are arranged at intervals and are in one-to-one correspondence with the grinding wheels 41 of the two grinding mechanisms 2 respectively, the supporting grooves 513 on the two supporting pieces 51 are transversely corresponding and have consistent cross sections, and the respective vertical parts of the two overhanging brackets 512 are connected into a whole, so that the installation is convenient.

The lifting mechanism 53 comprises a lifting driving member 531, a front sliding seat 532 and a first guide assembly 54 which is vertically arranged in a sliding manner, a vertically arranged front fixing plate 533 is installed on the front side surface of the lower mounting plate 12, two first guide assemblies 54 are arranged, each first guide assembly 54 comprises a first guide rod 541 and two first sliding blocks 542 which are slidably sleeved on the first guide rod 541, each first guide rod 541 penetrates through the two guide seats 543 and is fixedly connected with the two guide seats 543, the two guide seats 543 are fixedly installed on the front fixing plate 533, and the two guide seats 543 are limited between the two first sliding blocks 542 to limit the stroke of the first sliding block 542; the lifting driving member 531 is a motor screw rod assembly or a cylinder assembly, the lifting driving member 531 is a motor screw rod assembly in the present application, including a first lifting motor 5312, a first screw rod 5313 vertically arranged and a first nut seat 5311 threadedly connected to the first screw rod 5313, both ends of the first screw rod 5313 are rotatably mounted on the front fixing plate 533 through screw rod seat support, an output shaft of the first lifting motor 5312 is connected at one end of the first screw rod 5313, the first nut seat 5311 and each first slider 542 are all fixedly connected with the front sliding seat 532 through screws, and a joint of the vertical portions of the two overhanging brackets 512 is fixedly connected with the front sliding seat 532 through screws.

With reference to fig. 4, the pressing member 52 includes an installation block 521, a lower pressing block 522, a second guide assembly 523 and a first spring assembly 524, the installation block 521 is fixedly installed on the front side surface of the upper installation plate 11, two sets of vertically arranged second guide assemblies 523 are disposed between the lower pressing block 522 and the installation block 521, each second guide assembly 523 includes a second guide rod 5231 and a second sliding block 5232 slidably sleeved on the second guide rod 5231, two ends of the second guide rod 5231 are respectively fixed on the installation block 521 through two limit stops, and the second sliding block 5232 is located between the two limit stops and is fixedly connected with one side of the lower pressing block 522 facing the installation block 521.

The bottom of lower briquetting 522 is located the supporting shoe 511 directly over, the bottom of lower briquetting 522 sets up to butt portion, and in this embodiment, lower briquetting 522 bottom is provided with two butt portions, and each butt portion includes vertical butt piece 525 and the side direction butt piece 526 of vertical downwardly overhanging, and side direction butt piece 526 is located vertical butt piece 525 below and keep away from one side of emery wheel 41, and side direction butt piece 526 is a pivoted pinch roller in this embodiment, and vertical butt piece 525 is the depression bar of a vertical setting, and the lower extreme of depression bar runs through the bottom of lower briquetting 522 and downwardly overhanging, and when the work piece was located the work piece grip area, the lower extreme butt of depression bar was in the top of work piece, and the pinch roller butt is in a side of keeping away from the work piece and waiting to process the face.

The first spring assembly 524 includes a spring guide rod 5242, a first spring 5241 and a spring stop, the spring guide rod 5242 is vertically fixed on the two limit stops, the spring stop is fixed on one side of the lower pressing block 522 facing the mounting block 521, the spring stop is movably sleeved on the spring guide rod 5242, the first spring 5241 is sleeved on the spring guide rod 5242 and is located between the limit stop at the upper end and the spring stop, and the spring always has an elastic force tending to move downward to the lower pressing block 522.

Referring to fig. 5-7, the relative sliding mechanism 3 includes a rear fixing plate 31, a third guiding assembly 32, two rear sliding seats 33, two mounting seats 34, a relative sliding driving assembly 35, and an adjusting and positioning mechanism 36, the rear fixing plate 31 is fixedly mounted on the rear side of the lower mounting plate 12, and a connecting through hole 37 is formed in the middle of the rear fixing plate 31, the third guiding assembly 32 is transversely disposed, and the upper and lower interval distance sets up, third direction subassembly 32 includes third guide bar 321, third slider 322 and the direction dog 323 of fixed connection on third guide bar 321 are located to the cover that slides, direction dog 323 is provided with two and respectively fixed mounting in the both ends of lower mounting panel 12, third guide bar 321 transversely wears to adorn on two direction dogs 323 and both fixed connection, the both sides of each direction dog 323 set up two third sliders 322, and two third sliders 322 and a back sliding seat 33 of each side pass through screw fixed connection.

Two mount pads 34 correspond respectively to be installed in two back sliding seat 33 and keep away from one side of rear fixed plate 31, and mount pad 34 includes the removal plate body that slides the cooperation and be connected with back sliding seat 33 and fixed connection in the removal plate body top and be the installation plate body of level form, and grinding mechanism 2's grinding frame 4 is installed on the installation plate body. The moving plate body is connected with the rear sliding seat 33 in a sliding fit manner through a dovetail groove dovetail slide block, and the dovetail groove is transversely arranged and is parallel to the third guide rod 321.

The relative sliding driving mechanism comprises an isosceles trapezoid block 351, a connecting bracket 352, rollers 353 and a return spring 354, wherein the rollers 353 and the return spring 354 are positioned on two sides of the inclined edge of the isosceles trapezoid block 351, the isosceles trapezoid block 351 is vertically arranged and positioned between the two rear sliding seats 33, one end of the connecting bracket 352 is fixedly connected to one side of the isosceles trapezoid block 351 facing the rear fixing plate 31, the other end of the connecting bracket 352 passes through a connecting through hole 37 and is fixedly connected with the front sliding seat, symmetrical roller seats 38 are fixedly connected to one side edge of the two rear sliding seats 33, the two rollers 353 are respectively rotatably mounted on the two roller seats 38, the outer circular surfaces of the two rollers 353 respectively correspond to the two side circular surfaces of the isosceles trapezoid block 351, when the isosceles trapezoid block 351 moves upwards, the two side circular surfaces can abut against the outer circular surfaces of the two rollers 353, so as to drive the two rear sliding seats 33 to move towards two sides on the third guide rod 321, the return spring 354, when the isosceles trapezoid block 351 moves downward, the two side slopes lose the contact force against the two rollers 353, and then the two rear sliding seats 33 move relatively to each other under the action of the return spring 354 to return to the initial position.

The two adjusting and positioning mechanisms 36 are provided, each adjusting and positioning mechanism 36 comprises an upright column 361, a chain assembly 362, a moving transverse shaft 363 and a driving handle 364, the lower end of the upright column 361 is fixedly connected with the rear sliding seat 33, one end of the moving transverse shaft 363 is rotatably connected with the mounting seat 34, the other end of the moving transverse shaft 363 slidably penetrates through the upright column 361 and is in threaded rotary connection with the upright column 361, the chain assembly 362 comprises an upper gear, a lower gear, a chain sleeved on the upper gear and the lower gear and a gear seat for rotatably mounting the upper gear, the driving handle 364 is in transmission connection with a gear shaft of the upper gear, the lower gear is fixedly sleeved on the moving transverse shaft 363, when the driving handle 364 is rotated, the upper gear can be driven to rotate, and therefore the mounting seat 34 is driven to transversely move under the sliding fit of a dovetail sliding block.

The utility model discloses during the use, the guide rail is carried in the installation on the leading flank of lower mounting panel 1212, be provided with two breachs on the transport guide rail, two breach departments correspond two supporting piece 51's supporting shoe 511 respectively, the recess that is used for placing and carrying the work piece on the transport guide rail corresponds with the supporting groove 513 on the supporting shoe 511, make and form the transfer passage who is linked together on transport guide rail and the supporting shoe 511, when the work piece removes to the supporting shoe 511 on, elevating system 53 drive supporting shoe 511 rising movement drives supporting shoe 511 upward movement, thereby press from both sides tightly between work piece and the lower part 52, and carry out the grinding motion, two grinding mechanism 2's setting can realize processing two supporting shoe 511, and the efficiency is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a promote material loading grinding device, includes installation frame (1), grinding mechanism (2) and fixture (5), and grinding mechanism (2) include grinding frame (4) and rotate the emery wheel driving piece of installing emery wheel (41) and drive emery wheel (41) rotation on grinding frame (4), its characterized in that: fixture (5) including go up and down to slide support piece (51) of installing on installation frame (1), be located push down piece (52) and drive support piece (51) directly over support piece (51) are close to or keep away from elevating system (53) of push down piece (52), push down piece (52) slide install in installation frame (1) and have the trend of downstream all the time, support piece (51) top and push down form between piece (52) bottom and be used for the centre gripping to treat the processing work piece and be located the work piece clamping area of machined surface one side of emery wheel (41), drive the work piece that is located work piece clamping area when support piece (51) lift motion and treat the machined part and be close to until the butt the machined surface of emery wheel (41).

2. A lifting feed grinding device according to claim 1, characterised in that: elevating system (53) are including first direction subassembly (54) of lift driving piece (531), preceding slide (532) and vertical setting, and preceding slide (532) pass through first direction subassembly (54) slide install in on installation frame (1), support piece (51) are installed in preceding slide (532) top, and lift driving piece (531) are connected with preceding slide (532) and are driven elevating movement by lift driving piece (531).

3. A lifting feed grinding device according to claim 2, characterised in that: first direction subassembly (54) including be fixed in on installation frame (1) and vertical first guide bar (541) that sets up and fixed connection in first slider (542) on preceding slide (532) are provided with first vertical through-hole on first slider (542), and first slider (542) slide through first vertical through-hole and wear to locate on first guide bar (541).

4. A lifting feed grinding device according to claim 2, characterised in that: the lifting driving piece (531) is a motor screw rod assembly or a cylinder assembly.

5. A lifting feed grinding device according to claim 1, characterised in that: the pressing piece (52) comprises an installation block (521) fixedly installed on the frame and a pressing block (522) movably connected to the installation block (521) in the vertical direction, and a butting part is arranged at the bottom of the pressing block (522).

6. A lifting feed grinding device according to claim 5, characterised in that: be provided with second guide assembly (523) between briquetting (522) and installation piece (521), second guide assembly (523) is including being fixed in on installation piece (521) and vertical second guide bar (5231) and second slider (5232) that set up, second slider (5232) are provided with the vertical through-hole of second, second slider (5232) slide through the vertical through-hole of second and wear to locate on second guide bar (5231), second slider (5232) and briquetting (522) fixed connection down, the lower extreme of second guide bar (5231) is provided with prevents second slider (5232) from the limit stop that second guide bar (5231) break away from.

7. A lifting feed grinding device according to claim 5 or 6, characterised in that: the abutting part comprises a vertical abutting block (525) and a lateral abutting block (526), wherein the vertical abutting block and the lateral abutting block both vertically and downwardly overhang, and the lateral abutting block (526) is located on one side, away from the grinding wheel (41), below the vertical abutting block (525).

8. A lifting feed grinding device according to claim 5, characterised in that: the supporting piece (51) is provided with a supporting groove (513) which is transversely penetrated and used for the transverse movement of the workpiece.

9. A lifting feed grinding device according to claim 8, characterised in that: grinding mechanism (2) are provided with two, and two grinding mechanism (2) symmetry branches are located the both sides of fixture (5), the top of support piece (51) is provided with two interval distance's support groove (513), the bottom of lower briquetting (522) be provided with two butt portion, two butt portion respectively with two support groove (513) correspond the cooperation.

10. A lifting feed grinding device according to claim 9, characterised in that: and a relative sliding mechanism for driving the two grinding mechanisms (2) to synchronously move in the opposite direction or in the opposite direction is arranged below the two grinding mechanisms (2).