CN214980035U - Grinding machine - Google Patents

Abstract

The utility model provides a grinding machine, be used for the grinding cutter, with processing into the tool bit, including frame and fixed module, fixed module removes and locates in the frame, be used for the clamping cutter and drive the cutter and rotate, grinding machine still includes emery wheel module and emery wheel clamping module, the emery wheel module is including rotating the carousel support of locating in the frame and locating the emery wheel group that is equipped with a plurality of different specifications on the carousel support, emery wheel clamping module is including locating the moving mechanism in the frame and connecting in the emery wheel clamping machine of moving mechanism, moving mechanism drive emery wheel clamping machine constructs along level and vertical direction removal, in order to drive emery wheel clamping machine construct the emery wheel group of a plurality of different specifications of clamping respectively on the emery wheel module, and move the position of emery wheel group to fixed module and grind the tool respectively, in order to form the tool bit. Above-mentioned milling machine need not artifical manual processing through fixed module, emery wheel module and emery wheel clamping module cooperation automatic processing tool bit, and the efficiency of processing is high.

Description

Grinding machine

Technical Field

The application relates to the field of tool bit processing, in particular to a grinding machine.

Background

At present, the demand on the cutter head is gradually increased, and a part of products need to be subjected to various processing procedures, such as a break difference, a fillet, head taper, three inclined planes, tapered upper spiral cutter toughness, a head arc and the like. The tool bit is usually ground and machined by a qualified technician operating a grinding machine by utilizing a ground formed grinding wheel, and the tool bit is difficult to manually machine, high in technical requirement and low in machining efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a grinding machine which can automatically machine a tool bit and has high machining efficiency.

The embodiment of the application provides a grinding machine, which is used for grinding a cutter to be processed into a cutter head and comprises a frame and a fixed module, wherein the fixed module is movably arranged on the frame and used for clamping the cutter and driving the cutter to rotate, the grinding machine also comprises a grinding wheel module and a grinding wheel clamping module, the grinding wheel module comprises a turntable support rotatably arranged on the frame and a plurality of grinding wheel sets with different specifications arranged on the turntable support, the grinding wheel clamping module comprises a moving mechanism arranged on the frame and a grinding wheel clamping mechanism connected to the moving mechanism, the moving mechanism drives the grinding wheel clamping mechanism to move along the horizontal direction and the vertical direction so as to drive the grinding wheel clamping mechanism to respectively clamp a plurality of grinding wheel sets with different specifications on the grinding wheel module and move the grinding wheel sets to the position of the fixed module to grind the cutter respectively, to form the tool tip.

Further, in some embodiments of the present application, the fixing module includes a first base, a clamping member, a rotary driving member, and a supporting member, and the first base is disposed on the frame; the clamping piece is arranged on the first base and used for clamping the cutter; the rotary driving piece is connected to the clamping piece and used for driving the clamping piece to rotate; the supporting component is arranged on the first base and positioned at one end of the cutter clamped by the clamping piece and used for supporting the cutter.

Further, in some embodiments of the present application, the support assembly includes a support bar, a guide, a pad, and an elastic member, the support bar being connected to the first housing; the guide piece is fixed on the support rod; the cushion block is connected to the guide piece in a sliding mode, and the cushion block slides relative to the supporting rod through the guide piece; and the elastic piece is respectively connected with the supporting rod and the cushion block so as to elastically support the cushion block.

Further, in some embodiments of this application, the carousel support is equipped with a plurality of installation departments that set up along its circumferencial direction, the installation department includes the fixed part, is used for fixing the position of emery wheel group.

Further, in some embodiments of the present application, a positioning protrusion and two elastic supporting members which are oppositely disposed are disposed in the fixing portion, the positioning protrusion is adapted to the groove of the grinding wheel set, and the two elastic supporting members are respectively supported on two sides of the grinding wheel set so as to cooperate with the positioning protrusion to fix the grinding wheel set in the fixing portion.

Further, in some embodiments of the present application, the moving mechanism includes a first moving set and a second moving set, the first moving set is connected to the grinding wheel clamping mechanism and the second moving set respectively, and is configured to drive the grinding wheel clamping mechanism to move along a horizontal direction, the second moving set is configured to drive the grinding wheel clamping mechanism to move along a vertical direction, and the first moving set and the second moving set are further configured to drive the grinding wheel clamping mechanism to move obliquely at the same time.

Further, in some embodiments of the present application, the grinding wheel clamping mechanism includes a second machine base, a clamping member and a clamping driving member, and the second machine base is disposed on the first moving group; the clamping piece is rotatably arranged on the second base and used for clamping the grinding wheel set; the clamping driving part is connected to the clamping piece to drive the grinding wheel set to rotate.

Further, in some embodiments of the present application, the clamping element includes a rotating shaft, a pull rod, and a pull rod power element, the rotating shaft is rotatably disposed on the second base, a receiving portion is disposed in the rotating shaft, and the grinding wheel is assembled in the receiving portion and located at one end of the rotating shaft; the pull rod is arranged in the accommodating part in a sliding manner, a clamping groove is formed in the end part of the pull rod, and steel balls are arranged in the clamping groove along the circumferential direction and used for clamping the grinding wheel set; the pull rod power part is connected with the pull rod and used for pulling the pull rod to slide in the accommodating part to a position deviating from the position where the grinding wheel set is installed, so that the grinding wheel set is clamped in the clamping groove by the steel balls and is tensioned.

Further, in some embodiments of the present application, the accommodating portion includes a first accommodating chamber and a second accommodating chamber that are communicated with each other, a radius of the first accommodating chamber is greater than that of the second accommodating chamber, a joint of the first accommodating chamber and the second accommodating chamber is an inclined plane, the pull rod is located in the first accommodating chamber, the steel ball and the grinding wheel set are in a loose state, the pull rod is located in the second accommodating chamber, and the steel ball and the grinding wheel set are in a compressed state.

Further, in some embodiments of this application, emery wheel group includes the handle of a knife, the handle of a knife is equipped with bulb card and holds the end, the pull rod is located first holding intracavity, sets up along the circumferencial direction the radius of steel ball is greater than the radius that the end was held to the bulb card, the pull rod is located second holding intracavity, set up along the circumferencial direction the radius of steel ball is less than the radius that the end was held to the bulb card.

Above-mentioned milling machine need not artifical manual processing through fixed module, emery wheel module and emery wheel clamping module cooperation automatic processing tool bit, and the efficiency of processing is high.

Drawings

Fig. 1 is a schematic view showing the structure of a grinding machine in one embodiment.

Fig. 2 is a schematic structural diagram of a fixing module in an embodiment.

Fig. 3 illustrates a schematic structural diagram of a motion mechanism in one embodiment.

FIG. 4 is a schematic diagram of a grinding wheel module according to an embodiment.

Fig. 5 illustrates a structural schematic diagram of the turntable body in one embodiment.

Fig. 6 is a schematic structural diagram of a fixing portion in an embodiment.

FIG. 7 is a schematic structural diagram of a grinding wheel clamping mechanism in one embodiment.

Figure 8 illustrates a cross-sectional view of the wheel clamping mechanism in one embodiment.

Description of the main elements

Grinding machine 100

Rack 10

Fixed module 20

First machine base 21

Clamping member 22

Rotary drive 23

Motor 231

Toothed belt wheel 232

Timing belt 233

Support assembly 24

Supporting rod 241

Guide 242

Spacer 243

Elastic member 244

Dust exhaust mechanism 25

Suction plate 251

Suction hose 252

Movement mechanism 26

Slide 261

Slider 262

Connecting plate 263

Screw assembly 264

Motor 2641

Ball screw 2642

Ball nut 2643

Connecting block 2644

Grinding wheel module 30

Fixing frame 31

Side plate 311

Mounting plate 312

Grinding wheel drive 32

Servo motor 321

Fixing plate 3211

Synchronous pulley 322

Synchronous belt 323

Turntable support 33

Turntable main body 331

First plate 3311

Second plate 3312

Rotating shaft 332

Mounting part 333

Fixing part 333a

Positioning projection 3331

Elastic supporting piece 3332

Elastic block 3332a

Spring 3332b

Briquetting 3332c

Grinding wheel set 34

Knife handle 341

Ball head holding end 341a

Annular groove 3411

Catch 3412

Grinding wheel clamping module 40

Moving mechanism 41

First moving group 411

Second mobile group 412

Grinding wheel clamping mechanism 42

Second frame 421

Bearing seat 4211

Bearing 4212

Clamping piece 422

Rotating shaft 4221

Positioning block 4221a

Fixed block 4221b

Mounting cavity 4221c

First accommodation cavity 4221d

Second accommodation cavity 4221e

Third accommodation cavity 4221f

The fourth containing cavity 4221g

Spring 4221h

Spring pressing block 4221j

Pull rod 4222

Retaining groove 4222a

Steel ball 4222b

Pull rod power piece 4223

Clamping driving piece 423

Cutting tool 200

Grinding wheel 300

The following specific examples will further illustrate the application in conjunction with the above figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

The embodiment of the application provides a grinding machine, be used for grinding cutter, with processing into the tool bit, including frame and fixed module, fixed module removes to be located in the frame, be used for the clamping cutter and drive the cutter and rotate, grinding machine still includes emery wheel module and emery wheel clamping module, the emery wheel module is including rotating the emery wheel group that is equipped with a plurality of different specifications of locating the carousel support in the frame and locating on the carousel support, emery wheel clamping module is including locating the moving mechanism in the frame and connecting in the emery wheel clamping machine of moving mechanism, moving mechanism drive emery wheel clamping machine constructs and removes along level and vertical direction, in order to drive emery wheel clamping machine structure on the emery wheel module respectively the emery wheel group of a plurality of different specifications of clamping, and move the position of emery wheel group to fixed module and grind the tool respectively, in order to form the tool bit.

Above-mentioned milling machine need not artifical manual processing through fixed module, emery wheel module and emery wheel clamping module cooperation automatic processing tool bit, and the efficiency of processing is high.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, a grinder 100 is shown in FIG. 1 for grinding on a tool 200 to form a tool tip. The grinding machine 100 includes a frame 10, a fixed die set 20, a grinding wheel die set 30, and a grinding wheel clamping die set 40. The fixed module 20, the grinding wheel module 30 and the grinding wheel clamping module 40 are all arranged on the frame 10. The fixed module 20 is used for clamping the cutter 200 and driving the cutter 200 to rotate, the grinding wheel module 30 is rotatably arranged above the grinding wheel clamping module 40, the grinding wheel module 30 is provided with a plurality of grinding wheel sets with different specifications, the grinding wheel clamping module 40 is movably arranged on the rack 10 and used for respectively and sequentially clamping the grinding wheel sets with different specifications on the grinding wheel module 30, and the grinding wheel sets are moved to the position of the fixed module 20 to sequentially grind the cutter 200 so as to form a cutter head. In one embodiment, six grinding wheel sets are arranged and are respectively used for machining a break difference, a fillet, a head taper, a three-side inclined plane, a tapered upper spiral cutter toughness and a head arc. It will be appreciated that the number of sets of grinding wheels is not limited to the above definition and may be adjusted according to the function required by the cutter head, such as 3, 4, 7, 8, etc.

Referring to fig. 2, the fixing module 20 includes a first base 21, a clamping member 22, a rotary driving member 23 and a supporting member 24. The first base 21 is disposed on the frame 10, and the rotary driving member 23 is disposed on the first base 21 and connected to the clamping member 22. The clamping member 22 has one end connected to the driving shaft of the rotary driving member 23 and the other end facing the grinding wheel module 30 and the grinding wheel clamping module 40 for clamping the tool 200. The rotation of the clamping member 22 is driven by the rotary driving member 23 to rotate the tool 200. The supporting assembly 24 has one end fixed to the first housing 21 and the other end extending to one end of the clamping member 22 for clamping the tool 200, and is used for supporting the tool 200 in a position perpendicular to the axis of the tool 200, so as to prevent the tool bit from extending and rotating, which results in grinding deviation.

In an embodiment, the rotary driving member 23 includes a motor 231, two toothed belt wheels 232 and a timing belt 233, the two toothed belt wheels 232 are respectively connected to the clamping member 22 and the motor 231, the timing belt 233 is respectively connected to the two toothed belt wheels 232, and the motor 231 drives the toothed belt wheels 232 and the timing belt 233 to rotate, thereby driving the clamping member 22 to rotate.

In one embodiment, the clamp 22 is a pneumatic three-jaw chuck.

In one embodiment, the support assembly 24 includes a support bar 241, a guide 242, a spacer 243, and a resilient member 244. One end of the supporting rod is fixed on the first base 21, the other end extends to a position below the cutter clamped by the clamping member 22, one end of the guiding member 242 is fixed on the supporting rod 241, the other end is connected with the cushion block 243 in a sliding manner, and the cushion block 243 slides relative to the supporting rod 241 through the guiding member 242. The two ends of the elastic member 244 are respectively connected with the support rod 241 and the cushion block 243, and the support rod and the cushion block 243 are used for providing elastic supporting force for the cushion block 243, so that the cushion block 243 elastically supports the cutter 200 in the axial direction perpendicular to the cutter 200, the cutter head extending part is prevented from deviating from the original axial position, the grinding deviation is caused, the cutter head machining failure is avoided, and the production cost is reduced.

In one embodiment, to ensure the stability of the support assembly 24, the guide member 242 and the elastic member 244 are respectively disposed in two, wherein the two guide members 242 are disposed opposite to each other, and the two elastic members 244 are disposed between the two guide members 242.

In an embodiment, the fixed module 20 further includes a dust exhaust mechanism 25, the dust exhaust mechanism 25 includes an air suction disc 251 and an air suction hose 252 connected to the air suction disc 251, the other end of the air suction hose 252 is communicated with the outdoor dust exhaust mechanism, the air suction disc 251 is fixed to the first base 21 and located on one side of the clamping member 22 clamping the tool 200, and is used for sucking dust generated by the grinding tool 200 into the air suction disc 251 and exhausting the dust into the outdoor dust exhaust mechanism through the air suction hose 252, so as to reduce dust inside the apparatus.

Referring to fig. 3, in an embodiment, the fixed module 20 further includes a moving mechanism 26, and the moving mechanism 26 includes two sliding rails 261 oppositely disposed along a first direction, a sliding block 262 disposed on the sliding rails 261, a connecting plate 263 connected to the sliding block 262, and a screw rod assembly 264. The first base 21 is disposed on the connecting plate 263, and the connecting plate 263 is driven by the lead screw assembly 264 to slide on the sliding rail 261 along the first horizontal direction through the sliding block 262, so as to drive the cutter clamped by the clamping member 22 to slide along the first horizontal direction.

In one embodiment, the screw assembly 264 includes a motor 2641, a ball screw 2642, a ball nut 2643, and a connecting block 2644. The motor 2641 is connected to the ball screw 2642 through a timing belt, the ball nut 2643 is slidably disposed on the ball screw 2642, and the connecting block 2644 is fixed to the ball nut 2643. The motor 2641 drives the ball nut 2643 to slide on the ball screw 2642, and further drives the connecting plate 263 connected to the connecting block 2644 to move.

Referring to fig. 1 and 4, the grinding wheel module 30 includes a fixing frame 31, a grinding wheel driving member 32, a turntable support 33, and a grinding wheel set 34. The fixing frame 31 is fixed on the frame 10, the grinding wheel driving part 32 is arranged on the fixing frame 31, the turntable bracket 33 is connected to the grinding wheel driving part 32, and the grinding wheel group 34 is arranged on the turntable bracket 33.

The fixed frame 31 is provided with two side plates 311 which are oppositely arranged and a mounting plate 312 which connects the two side plates 311, and the grinding wheel driving part 32 and the turntable bracket 33 are arranged on the mounting plate 312.

The wheel drive 32 includes a servo motor 321, two timing pulleys 322 and a timing belt 323. The servo motor 321 is fixed on the mounting plate 312 through the fixing plate 3211, the two synchronous belt pulleys 322 are respectively connected with the servo motor 321 and the turntable support 33, the synchronous belt 323 is connected with the two synchronous belt pulleys 322, the synchronous belt 323 is driven by the servo motor 321 to rotate, and then the grinding wheel set 34 on the turntable support 33 and the turntable support 33 is driven to rotate.

The turntable support 33 includes a turntable main body 331, a rotation shaft 332, and a mounting portion 333. The rotating shaft 332 is connected to the synchronous pulley 322, a bearing is disposed on the outer circumference of the rotating shaft 332, the bearing is disposed on a bearing seat, and the bearing seat is fixed to the turntable main body 331, so as to drive the turntable main body 331 to rotate.

Referring to fig. 5, the turntable body 331 includes a first plate 3311 and a second plate 3312 disposed at an interval, and the grinding wheel set 34 is partially held between the first plate 3311 and the second plate 3312. The mounting part 333 is provided on the second plate 3312 in a circumferential direction of the second plate 3312. Each of the mounting portions 333 includes a fixing portion 333a for fixing the position of the grinding wheel set 34. In one embodiment, the fixing portion 333a has a C-shaped structure.

Referring to fig. 6, the grinding wheel set 34 includes a tool holder 341, one end of the tool holder 341 is provided with a ball head holding end 341a, and the other end is used for mounting the grinding wheel 300. The tool holder 341 has an inwardly recessed annular groove 3411 and a retaining portion 3412 for fixing the position of the grinding wheel set 34 in cooperation with the mounting portion 333.

The fixing portion 333a is provided with a positioning protrusion 3331 and two elastic supporting members 3332 disposed opposite to each other, the positioning protrusion 3331 is matched with the retaining portion 3412 of the grinding wheel set 34, the positioning protrusion 3331 is retained in the retaining portion 3412, and the two elastic supporting members 3332 are respectively retained in the annular retaining groove 3411 to fix the grinding wheel set 34 in the fixing portion 333 a.

In one embodiment, the elastic supporting member 3332 includes an elastic block 3332a, a spring 3332b and a pressing block 3332 c. The pressing block 3332c is fixed to the fixing portion 333a, the spring 3332b has two ends connected to the elastic block 3332a and the pressing block 3332c, respectively, for supporting the elastic block 3332a, and the elastic block 3332a is telescopically disposed in the mounting groove of the fixing portion 333 a. When the two oppositely arranged elastic blocks 3332a are extended, the distance between the two elastic blocks 3332a is smaller than the radius of the circular clamping groove 3411 of the tool shank 341, so as to clamp the grinding wheel set 34 on the turntable support 33.

Referring to fig. 1, the grinding wheel clamping module 40 includes a moving mechanism 41 and a grinding wheel clamping mechanism 42 connected to the moving mechanism 41, wherein the moving mechanism 41 drives the grinding wheel clamping mechanism 42 to move in horizontal and vertical directions, so as to drive the grinding wheel clamping mechanism 42 to respectively clamp a plurality of grinding wheel sets 34 with different specifications on the grinding wheel module 30, and move the grinding wheel sets 34 to the position of the fixed module 20 to respectively grind the cutting tools, so as to form a cutting head.

The moving mechanism 41 includes a first moving group 411 and two second moving groups 412 disposed opposite to each other, and both ends of the first moving group 411 are respectively connected to the two second moving groups 412. The grinding wheel clamping mechanism 42 is disposed on the first moving group 411, and the grinding wheel clamping mechanism 42 is driven by the first moving group 411 to move along a second horizontal direction perpendicular to the first horizontal direction, wherein the second horizontal direction faces the position where the clamping member 22 clamps the tool 200. The two second moving groups 412 are used for driving the first moving group 411 and the grinding wheel clamping mechanism 42 arranged on the first moving group 411 to move along the vertical direction. The structure of the first moving group 411 is the same as the structure of the moving mechanism 26 of the fixed module 20, and is not described herein again. The second moving set 412 has substantially the same structure as the moving mechanism 26 of the fixed module 20, except that it is fixed on the fixed frame 31 along the vertical direction by the fixed support 4121, which will not be described herein.

It is understood that the first moving group 411 and the second moving group 412 can operate independently to drive the wheel clamping mechanism 42 to move along the second horizontal direction or the vertical direction, and the first moving group 411 and the second moving group 412 can also drive the wheel clamping mechanism 42 to move obliquely, for example, to move toward or away from the fixed module 20 during the ascending process or to move toward or away from the fixed module 20 during the descending process.

It can be understood that the moving mechanism 26, the first moving group 411 and the second moving group 412 are provided with dust covers to prevent dust from falling.

Referring to fig. 7 and 8, the grinding wheel clamping mechanism 42 includes a second machine base 421, a clamping member 422, and a clamping driving member 423. The second base 421 is disposed on the first moving group 411, the clamping piece 422 and the clamping driving piece 423 are both disposed on the second base 421, the clamping piece 422 is used for mounting the grinding wheel set 34, and the clamping driving piece 423 is further connected to the clamping piece 422 and is used for driving the clamping piece 422 to drive the grinding wheel set 34 to rotate.

The second housing 421 has a bearing seat 4211 and a plurality of bearings 4212, wherein the plurality of bearings 4212 are sleeved on the clamping member 422 and are disposed in the bearing seat 4211, so that the clamping member 422 rotates relative to the bearing seat 4211 through the bearings 4212.

The clamping member 422 includes a rotating shaft 4221, a pull rod 4222 disposed in the rotating shaft 4221, and a pull rod power member 4223 connected to the pull rod 4222.

The rotating shaft 4221 is arranged in the bearing 4212, one end of the rotating shaft 4221 is used for installing the grinding wheel set 34, and the other end of the rotating shaft 4221 is connected to the clamping driving piece 423. One end of the rotating shaft 4221, which is provided with the grinding wheel set 34, is provided with a positioning block 4221a and a fixing block 4221b, the fixing block 4221b is sleeved at the end of the rotating shaft 4221, and the fixing block 4221b supports against the rotating shaft 4221 so as to fix the rotating shaft 4221 on the bearing seat 4211. The positioning block 4221a is concavely disposed at an end of the rotating shaft 4221, and is used for cooperating with the retaining portion 3412 of the grinding wheel set 34 when the grinding wheel set 34 is installed, so as to position the grinding wheel set 34 on the rotating shaft 4221 by retaining the positioning block 4221a in the retaining portion 3412.

The rotating shaft 4221 is internally provided with a containing part, the grinding wheel set 34 is arranged in the containing part and is positioned at one end of the rotating shaft 4221, one end of the pull rod 4222 is used for fixing the grinding wheel set 34, the other end of the pull rod 4222 is connected with the pull rod power piece 4223, and the pull rod 4222 is pulled through the pull rod power piece 4223 so that the pull rod 4222 is clamped at the position of the grinding wheel set 34.

The accommodating part comprises a mounting cavity 4221c, a first accommodating cavity 4221d, a second accommodating cavity 4221e, a third accommodating cavity 4221f and a fourth accommodating cavity 4221g which are sequentially communicated. The structure of the mounting cavity 4221c is matched with that of the handle 341, and is used for accommodating the handle 341, so that the ball catching end 341a of the handle 341 enters the first accommodating cavity 4221d from the mounting cavity 4221c, and the pull rod 4222 is pulled by the pull rod power member 4223, so that the ball catching end 341a of the handle 341 enters the second accommodating cavity 4221e from the first accommodating cavity 4221 d. In one embodiment, the mounting cavity 4221c is generally conical in configuration.

The radii of the first accommodation cavity 4221d and the second accommodation cavity 4221e are arranged in a step shape, and specifically, the radius of the first accommodation cavity 4221d is larger than that of the second accommodation cavity 4221 e. The joint between the first accommodation cavity 4221d and the second accommodation cavity 4221e is a bevel structure, so that the ball catching end 341a of the handle 341 slides from the first accommodation cavity 4221d into the second accommodation cavity 4221 e.

The radius of the third accommodation cavity 4221f is smaller than the radius of the second accommodation cavity 4221e and the radius of the fourth accommodation cavity 4221g, the radius of the fourth accommodation cavity 4221g is approximately the same as the radius of the second accommodation cavity 4221e, and the third accommodation cavity 4221f separates the fourth accommodation cavity from the second accommodation cavity 4221 e.

A spring 4221h and a spring pressing block 4221j are arranged in the fourth accommodating cavity 4221g, and the spring pressing block 4221j is arranged on the pull rod 4222 and used for driving the spring pressing block 4221j to slide in the fourth accommodating cavity 4221g so as to press and hold the spring 4221 h. When the pull rod power piece 4223 pushes the pull rod 4222 to move towards one end of the rotating shaft 4221 where the grinding wheel set 34 is installed, the spring pressing block 4221j compresses the spring 4221h, when the pull rod power piece 4223 returns, the pull rod 4222 is pulled by the pull rod power piece 4223 to move towards one end away from the rotating shaft 4221 where the grinding wheel set 34 is installed, and the compressed spring 4221h drives the pull rod 4222 to further move.

The pull rod 4222 is movably arranged in the first accommodation cavity 4221d, the second accommodation cavity 4221e, the third accommodation cavity 4221f and the fourth accommodation cavity 4221 g. The radius of the pull rod 4222 located in the first accommodation cavity 4221d and the second accommodation cavity 4221e is larger than that located in the third accommodation cavity 4221f and the fourth accommodation cavity 4221 g. The radius of the first accommodation cavity 4221d is larger than that of the pull rod 4222, and the radius of the second accommodation cavity 4221e is approximately the same as that of the pull rod 4222.

The pull rod 4222 positioned in the first accommodation cavity 4221d and the second accommodation cavity 4221e is provided with a clamping groove 4222a, a plurality of mounting holes are formed in the circumferential direction of the clamping groove 4222a, and a plurality of movably arranged steel balls 4222b are arranged in the mounting holes. The joint of the ball catching end 341a and the handle 341 is an inclined surface for cooperating with the steel ball 4222b to fix the handle 341 in the second accommodation chamber 4221 e. Specifically, when the grinding wheel set 34 is clamped, the pull rod power member 4223 pushes the pull rod 4222, so that the retaining groove 4222a of the pull rod 4222 is partially located in the first accommodating cavity 4221d, at this time, because the radius of the first accommodating cavity 4221d is larger than that of the pull rod 4222, the steel ball 4222b in the retaining groove 4222a is in a loose state, the handle 341 of the grinding wheel set 34 is loaded into the first accommodating cavity 4221d through the mounting cavity 4221c and extends into the retaining groove 4222a, so that the steel ball 4222b is located at the connection position of the ball retaining end 341a and the handle 341, then the pull rod power member 4223 pulls the pull rod 4222, so that the retaining groove 4222a of the pull rod 4222 is moved into the second accommodating cavity 4221e, because the radius of the second accommodating cavity 4221e is smaller than that of the first accommodating cavity 4221d, and the radius of the second accommodating ball 4221e is approximately the same as that of the pull rod 4222, so that the inner wall of the second accommodating cavity 4221e compresses the steel ball 4222b to tightly press the connection position of the steel ball 341a, thereby clamping the ball head clamping end 341a in the clamping groove 4222a, and further fixing the grinding wheel set 34 on the rotating shaft 4221.

It can be understood that, when the ball catching end 341a is located in the first receiving cavity 4221d, the radius of the steel ball 4222b arranged in the circumferential direction is larger than the radius of the ball catching end 341a, so as to extend the ball catching end 341a into the catching groove 4222 a; when the ball catching end 341a is located in the second receiving cavity 4221e, the radius of the steel ball 4222b arranged in the circumferential direction is smaller than the radius of the ball catching end 341a, so that the ball catching end 341a is caught in the catching groove 4222 a.

In one embodiment, the radius of the retaining slot 4222a is substantially the same size as the radius of the ball head retaining end 341 a.

In one embodiment, an end of the retaining groove 4222a near the ball-end retaining end 341a is flared to facilitate the introduction of the ball-end retaining end 341a into the retaining groove 4222 a.

In one embodiment, a passage is formed in the pull rod 4222, the passage is communicated with one end of the tool shank 341, and a rotary joint is further arranged at the end of the pull rod 4222 and used for introducing gas for removing dust when the grinding wheel set 34 rotates.

The pull rod power piece 4223 is arranged on the clamping driving piece 423 and used for driving the pull rod 4222 to move close to or far away from the first accommodating cavity 4221d along the axis direction. In one embodiment, the pull rod power element 4223 is a pneumatic cylinder.

In one embodiment, a gear is disposed at the driving end of the clamping driving member 423, and another gear engaged with the driving end of the clamping driving member 423 is disposed at the periphery of the rotating shaft 4221, so as to drive the rotating shaft 4221 to rotate.

It will be appreciated that the grinding machine 100 described above further includes a controller electrically connected to the fixed die set 20, the wheel die set 30 and the wheel clamping die set 40 for controlling the operation of the respective die sets.

When the grinding machine 100 is used, firstly, a tool 200 to be processed is mounted on the clamping member 22, the tool 200 is driven to rotate along the axis thereof by rotating the driving member 23, the tool 200 is driven to slide along the length direction of the slide rail 261 by the moving mechanism 26, then the grinding wheel clamping mechanism 42 is driven to move to the turntable support 33 by the moving mechanism 41, a grinding wheel set 34 is clamped, the grinding wheel set 34 is driven to move to the position of the tool 200 by the moving mechanism 41, the grinding wheel set 34 is driven to rotate by the clamping driving member 423, so that the tool 200 is ground, after grinding of one grinding wheel set 34 is completed, the grinding wheel clamping mechanism 42 is driven to move to the turntable support 33 by the moving mechanism 41, the grinding wheel set 34 is placed on the turntable support 33, a grinding wheel set 34 of another specification is clamped, the grinding wheel set 34 is driven to move to the position of the tool 200 by the moving mechanism 41, and the clamping driving member 423 drives the grinding wheel set 34 to rotate, and grinding operation is performed on the cutter 200 by using the grinding wheel set of another specification, so as to complete the machining of the cutter head of the cutter 200 in a circulating manner.

Above-mentioned milling machine 100 need not artifical manual processing through fixed module 20, emery wheel module 30 and emery wheel clamping module 40 cooperation automatic processing tool bit, and not only the efficiency of processing is high, and the precision of processing is accurate moreover.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present application and are not to be taken as limiting the present application, and that suitable changes and modifications to the above embodiments are within the scope of the present disclosure as long as they are within the spirit and scope of the present application.

Claims (10)

1. A grinding machine for grinding a tool to machine a tool bit, comprising:

a frame;

the fixed module is movably arranged on the rack and used for clamping the cutter and driving the cutter to rotate;

characterized in that, the milling machine still includes:

the grinding wheel module comprises a rotary table bracket rotatably arranged on the rack and a plurality of grinding wheel groups with different specifications arranged on the rotary table bracket; and

the grinding wheel clamping module comprises a moving mechanism arranged on the rack and a grinding wheel clamping mechanism connected to the moving mechanism, the moving mechanism drives the grinding wheel clamping mechanism to move in the horizontal and vertical directions so as to drive the grinding wheel clamping mechanism to clamp a plurality of grinding wheel sets with different specifications on the grinding wheel module respectively, and the grinding wheel sets are moved to the positions of the fixed module to grind the cutter respectively so as to form the cutter head.

2. The grinding machine of claim 1 wherein said stationary die set comprises:

the first base is arranged on the rack;

the clamping piece is arranged on the first base and used for clamping the cutter;

the rotating driving piece is connected with the clamping piece and is used for driving the clamping piece to rotate; and

and the supporting component is arranged on the first base and positioned at one end of the cutter clamped by the clamping piece and used for supporting the cutter.

3. The grinding machine of claim 2 wherein said support assembly comprises:

the support rod is connected to the first base;

a guide fixed to the support bar;

the cushion block is connected to the guide piece in a sliding mode and slides relative to the supporting rod through the guide piece; and

and the elastic piece is respectively connected with the supporting rod and the cushion block so as to elastically support the cushion block.

4. A grinding machine as defined in claim 1 wherein said turntable support is provided with a plurality of mounting portions circumferentially disposed therealong, said mounting portions including securing portions for securing the position of said grinding wheel assemblies.

5. The grinding machine of claim 4 wherein said retainer portion has a retention projection and two opposing resilient abutment members, said retention projection engaging said groove of said grinding wheel assembly, said two resilient abutment members abutting respective sides of said grinding wheel assembly to cooperate with said retention projection to retain said grinding wheel assembly in said retainer portion.

6. The grinding machine of claim 1 wherein said shifting mechanism includes a first shifting group and a second shifting group, said first shifting group being connected to said wheel clamping mechanism and said second shifting group, respectively, for moving said wheel clamping mechanism in a horizontal direction, said second shifting group for moving said wheel clamping mechanism in a vertical direction, said first shifting group and said second shifting group being further for simultaneously moving said wheel clamping mechanism in an oblique direction.

7. A grinding machine as defined in claim 6 wherein said wheel clamping mechanism includes:

the second machine base is arranged on the first moving group;

the clamping piece is rotatably arranged on the second base and used for clamping the grinding wheel set; and

and the clamping driving part is connected to the clamping part so as to drive the clamping part to drive the grinding wheel set to rotate.

8. The grinding machine of claim 7 wherein said clamping member comprises:

the rotating shaft is rotatably arranged on the second base, an accommodating part is arranged in the rotating shaft, and the grinding wheel is assembled in the accommodating part and positioned at one end of the rotating shaft;

the pull rod is arranged in the accommodating part in a sliding manner, the end part of the pull rod is provided with a clamping groove, and the clamping groove is provided with a steel ball along the circumferential direction and used for clamping the grinding wheel set; and

and the pull rod power part is connected with the pull rod and used for pulling the pull rod to slide in the accommodating part to a position deviating from the position where the grinding wheel set is installed so as to enable the grinding wheel set to be clamped in the clamping groove by the steel balls and tension the grinding wheel set.

9. The grinding machine of claim 8 wherein said receiving portion includes a first receiving cavity and a second receiving cavity in communication, said first receiving cavity has a larger radius than said second receiving cavity, a junction of said first receiving cavity and said second receiving cavity is an inclined plane, said draw bar is located in said first receiving cavity, said steel ball and said grinding wheel set are in a loose state, said draw bar is located in said second receiving cavity, and said steel ball and said grinding wheel set are in a compressed state.

10. The grinding machine of claim 9 wherein said grinding wheel unit includes a tool shank having a ball-retaining end, said draw bar being positioned in said first receiving cavity, said circumferentially disposed steel balls having a radius greater than a radius of said ball-retaining end, said draw bar being positioned in said second receiving cavity, said circumferentially disposed steel balls having a radius less than a radius of said ball-retaining end.

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