CN116038446A - Milling cutter clamping tool - Google Patents
Milling cutter clamping tool Download PDFInfo
- Publication number
- CN116038446A CN116038446A CN202310041054.1A CN202310041054A CN116038446A CN 116038446 A CN116038446 A CN 116038446A CN 202310041054 A CN202310041054 A CN 202310041054A CN 116038446 A CN116038446 A CN 116038446A
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- clamping
- transmission
- transmission sleeve
- milling cutter
- toggle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention relates to the technical field of milling cutter processing, and provides a milling cutter clamping tool which comprises a mounting seat and a clamping mechanism, wherein the clamping mechanism comprises a shell, a clamping disc, a plurality of clamping units and a driving unit, the shell is fixedly arranged on the mounting seat, the clamping disc is arranged on the front side of the shell, and a sliding groove is formed in the clamping disc; the clamping unit comprises a clamping seat, a toothed plate and a transmission gear, wherein the clamping seat is slidably arranged in the sliding groove and positioned at the front side of the clamping disc, the rear side of the clamping seat extends to the rear side of the clamping disc and then is connected with the toothed plate, and the transmission gear can be freely rotated and arranged at the rear side of the clamping disc. According to the milling cutter clamping device, the clamping mechanism is improved on the basis of the existing milling cutter clamping device, so that the process of clamping and fixing the milling cutter is effectively simplified, and the machining efficiency of the milling cutter is improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of milling cutter machining, in particular to a milling cutter clamping tool.
Background
A milling cutter is a rotary cutter having one or more cutter teeth, and is mainly used for machining a plane, a step, a groove, a forming surface, cutting a workpiece, etc. on a milling machine, and is generally classified into an end mill, a face mill, an angle mill, a blade mill, etc., wherein the end mill is one of the most commonly used milling cutters on the current stage milling machine.
Along with the rapid development of the technology in the mechanical manufacturing industry, the requirements on the machining precision of workpieces are higher and higher, so that the requirements on the machining precision of the opposite milling cutter are also higher and higher, in the prior art, in order to enable the opposite milling cutter to meet the requirements on the machining precision of the opposite milling cutter, multiple grinding and polishing operations are required to be carried out on the opposite milling cutter in the production and manufacturing stage of the opposite milling cutter, and after the opposite milling cutter is clamped and fixed by using a corresponding clamping tool before grinding and polishing, the opposite milling cutter is ground by using corresponding grinding and polishing equipment.
Because end mills are generally cylindrical and different types of end mills have different diameters, a large number of special tools are often required to clamp and fix end mills of different sizes in conventional machining operations. To this end, the chinese patent document with application number CN2019212842704 discloses a circumferential polishing device for tungsten steel milling cutters, and a clamping tool capable of clamping and fixing end milling cutters of various sizes is disclosed in the circumferential polishing device. However, although this centre gripping frock can satisfy the fixed end mill of multiple equidimension of centre gripping, but need adjust the position of every grip block in proper order when using and just can realize fixing end mill centre gripping, whole process is very loaded down with trivial details.
Disclosure of Invention
The invention aims to provide a milling cutter clamping tool, which at least solves the technical problem that the clamping operation process of the existing end milling cutter clamping tool is complicated, so that the process of clamping and fixing a milling cutter is simplified, and the machining efficiency of the milling cutter is improved.
The aim of the invention is achieved by the following technical scheme:
the invention provides a milling cutter clamping tool which comprises a mounting seat and a clamping mechanism, wherein the clamping mechanism comprises a shell, a clamping disc, a plurality of clamping units and a driving unit, the inside of the shell is of a hollow structure, an opening is formed in the front side of the shell, the shell is fixedly arranged on the mounting seat, the clamping disc is arranged on the front side of the shell, sliding grooves which are in one-to-one correspondence with the clamping units are formed in the clamping disc, the sliding grooves are distributed in an annular array by taking the center of the clamping disc as the center of the circle, the sliding grooves penetrate through the clamping disc, one end of each sliding groove faces the center of the clamping disc, and the other end of each sliding groove extends along the radial direction of the clamping disc;
the clamping unit comprises a clamping seat, a toothed plate and a transmission gear, wherein the clamping seat is slidably arranged in the sliding groove and positioned at the front side of the clamping disc, the rear side of the clamping seat extends to the rear side of the clamping disc and then is connected with the toothed plate, the toothed plate extends along the length direction of the sliding groove, the transmission gear is rotatably arranged at the rear side of the clamping disc, and the transmission gear is meshed with the toothed plate;
the driving unit is used for driving the transmission gears of all the clamping units to synchronously rotate.
In some possible embodiments, the driving unit includes a driving gear, a driving rod and a rocking handle, wherein the driving gear is rotatably arranged at the rear side of the clamping disc, and all the transmission gears of the clamping units are meshed with the driving gear;
one end of the driving rod is connected with the driving gear in a transmission way, the other end of the driving rod penetrates through the rear side of the shell in the horizontal direction and then is connected with the rocking handle, and the driving rod is rotationally connected with the shell.
In some possible embodiments, the clamping disc is rotatably connected with the housing, and the clamping mechanism further comprises a transmission unit;
the transmission unit comprises a first transmission sleeve, a second transmission sleeve, a tripod support, an inserting shaft and a poking assembly, wherein the first transmission sleeve is arranged on one side of the driving gear, which is away from the clamping disc, the first transmission sleeve and the driving gear are coaxially arranged, a first transmission boss is arranged on the inner wall of the first transmission sleeve, and the first transmission boss extends along the axial direction of the first transmission sleeve;
the second transmission sleeve is connected with the clamping disc through a tripod, the second transmission sleeve, the first transmission sleeve, the driving gear and the driving rod are all coaxially arranged, the first transmission sleeve is positioned between the driving gear and the second transmission sleeve, a second transmission boss is arranged on the inner wall of the second transmission sleeve, and the second transmission boss extends along the axial direction of the second transmission sleeve;
the connecting shaft is sleeved at one end of the driving rod far away from the rocking handle and is coaxially arranged with the driving rod, the connecting shaft can slide along the axial direction of the driving rod, one end of the connecting shaft far away from the driving rod penetrates through the second transmission sleeve and then extends towards the direction where the first transmission sleeve is located, a third transmission boss is arranged on the circumferential outer wall of the connecting shaft between the first transmission sleeve and the second transmission sleeve, the third transmission boss extends along the axial direction of the connecting shaft, and the length of the third transmission boss is not greater than the interval between the first transmission sleeve and the second transmission sleeve;
the poking assembly is used for driving the inserting shaft to slide along the axial direction of the driving rod, so that a third transmission boss on the inserting shaft is inserted into the first transmission sleeve or the second transmission sleeve.
In some possible embodiments, the stirring assembly comprises a stirring ring, a shifting fork and a stirring rod, wherein the stirring ring is sleeved at one end of the plug shaft far away from the first transmission sleeve and is fixedly connected with the plug shaft, and the second transmission sleeve is positioned between the stirring ring and the first transmission sleeve;
the utility model discloses a toggle mechanism, including toggle ring, toggle rod, shift lever, the shift lever is provided with the toggle groove along its circumference, the shift fork is U type structure and sets up in one side of toggle ring, two toggle arms of shift fork slide and set up in the toggle inslot, one end of toggle rod links to each other with one side that the shift fork kept away from the toggle ring, the other end level of toggle rod extends to outside the casing, the toggle rod articulates in the casing, the outer wall of casing has been seted up and has been dodged the mouth with the toggle rod adaptation.
In some possible embodiments, a fixing plate is arranged on the outer wall of the shell below the avoidance opening, a fixing groove matched with the rotation path of the poking rod is formed in the fixing plate, a fixing hole matched with the fixing groove is formed in one end, away from the poking fork, of the poking rod, a fixing bolt is inserted into the fixing hole, and the fixing bolt penetrates through the fixing groove.
In some possible embodiments, two opposite sides of the shifting arm of the shifting fork are provided with rotating wheels, the rotating wheels are rotatably connected with the shifting arm of the shifting fork, and the rotating wheels are positioned in the shifting groove.
In some possible embodiments, the front side of the shell is provided with an annular rotating groove, the rear side of the clamping disc is provided with a rotating ring matched with the rotating groove, and the rotating ring is embedded in the rotating groove;
the rotating ring is made of magnetic materials, and a magnetic layer is arranged on the inner wall of the rotating groove.
In some possible embodiments, a side of the clamping seat facing the center of the clamping disc is an arc-shaped surface, anti-skid patterns are arranged on the arc-shaped surface, and a thimble is arranged in the center of the front side of the clamping disc.
In some possible embodiments, the top of the mounting seat is provided with a mounting groove matched with the shell, the shell is accommodated in the mounting groove, and the top surface of the mounting seat positioned at two sides of the mounting groove is provided with a threaded hole;
the shell is characterized in that connecting plates are arranged on two sides of the shell and bear on the top surface of the mounting seat, and connecting holes matched with the threaded holes are formed in the connecting plates.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
according to the milling cutter clamping tool, the clamping mechanism is improved on the basis of the existing milling cutter clamping device, so that the process of clamping and fixing the milling cutter is effectively simplified, and the machining efficiency of the milling cutter is improved to a certain extent. Meanwhile, the transmission unit is additionally arranged, so that the milling cutter clamping tool can be switched between two functions of clamping the fixed milling cutter and rotating the milling cutter, and the practicability of the milling cutter clamping tool in the practical application process is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a milling cutter clamping tool according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a milling cutter clamping tool according to an embodiment of the present invention under another view angle;
fig. 3 is a schematic structural diagram of a mounting seat according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an internal structure of a milling cutter clamping tool according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a clamping disc according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of the rear side of the clamping disc according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a housing according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a driving gear and a first transmission sleeve according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a tripod and a second transmission sleeve according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a transmission unit according to an embodiment of the present invention;
FIG. 11 is a schematic view of a dial ring and a plug shaft according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a shift fork and a shift lever according to an embodiment of the present invention.
Icon: 10-mount, 10 a-mount slot, 10 b-threaded hole, 20-housing, 20 a-rotating slot, 20 b-dodge port, 30-clamping disk, 30 a-sliding slot, 30 b-rotating ring, 40-clamping unit, 41-clamping seat, 42-toothed plate, 43-transmission gear, 50-driving unit, 51-driving gear, 52-driving rod, 53-crank, 60-connecting plate, 70-thimble, 80-transmission unit, 81-first transmission sleeve, 811-first transmission boss, 82-second transmission sleeve, 821-second transmission boss, 83-tripod stand, 84-peg-in shaft, 841-third transmission boss, 85-toggle assembly, 851-toggle ring, 851 a-toggle slot, 852-fork, 853-toggle rod, 852 b-rotating wheel, 855-fixed plate, 855 a-fixed slot, 856-fixed bolt.
Detailed Description
Examples
Referring to fig. 1 to 12, the present embodiment provides a milling cutter clamping tool, so as to simplify the whole process of clamping and fixing milling cutters on the basis of clamping and fixing milling cutters of various sizes, thereby improving the machining efficiency of the milling cutters to a certain extent. It should be noted that, the clamping tool provided in this embodiment is not suitable for clamping and fixing all types of milling cutters, but is only suitable for clamping and fixing milling cutters similar to end milling cutters (i.e., the whole structure is cylindrical).
Specifically, the clamping fixture comprises a mounting seat 10 and a clamping mechanism, wherein the clamping mechanism comprises a shell 20, a clamping disc 30, a plurality of clamping units 40 and a driving unit 50.
In the present embodiment, as shown in fig. 1 and 2, the housing 20 is fixedly installed on the installation base 10, the housing 20 has a substantially cylindrical structure and a hollow interior thereof, and at this time, in combination with what is shown in fig. 7, the front side of the housing 20 is provided with an opening communicating with the interior of the housing 20 so as to install the related components of the clamping unit 40 and the driving unit 50 inside the housing 20.
In order to fix the housing 20 on the mounting base 10, as shown in fig. 3, a mounting groove 10a adapted to the housing 20 is formed at the top of the mounting base 10, and the housing 20 is accommodated in the mounting groove 10a, it is understood that, considering that the housing 20 is generally cylindrical, the mounting groove 10a formed at the top of the mounting base 10 is also in an arc-shaped structure, so that when the housing 20 is accommodated in the mounting groove 10a, the contact area between the housing 20 and the mounting groove 10a can be increased, and the reliability of the housing 20 after being fixed is improved. At this time, the top surface of the mounting seat 10 located at two sides of the mounting groove 10a is provided with the threaded hole 10b, corresponding, combining the content shown in fig. 1 or fig. 2, the two sides of the housing 20 are all provided with the connecting plate 60, when the housing 20 is accommodated in the mounting groove 10a, the connecting plate 60 is carried on the top surface of the mounting seat 10, and the connecting plate 60 is provided with the connecting hole adapted to the threaded hole 10b, so that the connecting plate 60 and the mounting seat 10 are fixedly connected by respectively inserting the bolts into the connecting hole on the connecting plate 60 and the threaded hole 10b on the top surface of the mounting seat 10, thereby realizing the mounting and fixing of the housing 20, and realizing the detachable function of the housing 20, and being beneficial to integrally taking down the housing 20 from the mounting seat 10 according to the requirement in the later stage.
In the present embodiment, as shown in fig. 1 and 2, a clamping disk 30 is provided on the front side of the housing 20 to seal the opening of the housing 20 by the clamping disk 30, thereby protecting various components inside the housing 20 to some extent. At this time, in connection with the content shown in fig. 5, the clamping disc 30 is further provided with sliding grooves 30a corresponding to the plurality of clamping units 40 one by one, and the plurality of sliding grooves 30a are distributed in an annular array with the center of the clamping disc 30 as the center of the circle, each sliding groove 30a penetrates through the clamping disc 30, one end of the sliding groove 30a faces the center of the clamping disc 30, and the other end of the sliding groove 30a extends along the radial direction of the clamping disc 30.
For example, in this embodiment, three clamping units 40 are provided in total, and correspondingly, three sliding grooves 30a are provided on the clamping disc 30, and the included angles between two adjacent sliding grooves 30a are all 120 °.
In the present embodiment, the clamping unit 40 is used to clamp and fix the milling cutter, so as to firmly clamp and fix the milling cutter on the front side of the clamping disk 30. As shown in fig. 4 or fig. 6, the clamping unit 40 includes a clamping seat 41, a toothed plate 42 and a transmission gear 43, the clamping seat 41 is slidably disposed in the sliding groove 30a and is located at the front side of the clamping disc 30, preferably, the sliding groove 30a formed on the clamping disc 30 is T-shaped to improve the stability of the clamping seat 41 when sliding in the sliding groove 30a, the rear side of the clamping seat 41 extends to the rear side of the clamping disc 30 and then is connected with the toothed plate 42, the toothed plate 42 is a rack with a plurality of teeth on one side, the toothed plate 42 extends along the length direction of the sliding groove 30a, the transmission gear 43 is freely rotatably disposed at the rear side of the clamping disc 30, and the transmission gear 43 is meshed with the toothed plate 42.
In this embodiment, the driving unit 50 is configured to drive the transmission gears 43 of all the clamping units 40 to rotate synchronously, so that when the driving unit 50 drives the transmission gears 43 of all the clamping units 40 to rotate synchronously, for a single clamping unit 40, the toothed plate 42 moves along the length direction of the sliding groove 30a under the action of the transmission gears 43, and then drives the clamping seat 41 to move along the direction of the sliding groove 30a towards the center of the clamping disc 30 through the toothed plate 42, so that after the clamping seats 41 of a plurality of clamping units 40 move synchronously towards the center of the clamping disc 30, the milling cutter can be clamped and fixed on the front side of the clamping disc 30 firmly by using one side of the plurality of clamping seats 41 towards the center of the clamping disc 30.
On the contrary, when the driving unit 50 drives the transmission gears 43 of all the clamping units 40 to rotate reversely synchronously, for a single clamping unit 40, the toothed plate 42 will move reversely along the length direction of the sliding groove 30a under the action of the transmission gears 43, and then the toothed plate 42 drives the clamping seat 41 to move along the sliding groove 30a in a direction away from the center of the clamping disc 30, and when the clamping seats 41 of a plurality of clamping units 40 move synchronously for a certain distance in a direction away from the center of the clamping disc 30, the clamped and fixed milling cutter can be loosened.
It should be noted that, in connection with the content shown in fig. 1, in this embodiment, the side of the clamping seat 41 of each clamping unit 40 facing the center of the clamping disc 30 is provided with an arc surface, and anti-skid grains are provided on the arc surface, so as to increase the contact area and friction force when the clamping seat 41 contacts the circumferential outer wall of the milling cutter, so as to improve the reliability when the milling cutter is clamped and fixed by using a plurality of clamping seats 41. Meanwhile, considering that the end of the existing milling cutter always reserves a central hole as a reference in the processing stage, for this reason, with continued reference to fig. 1 or fig. 5, the front side of the clamping disc 30 is further provided with a thimble 70, and when the milling cutter needs to be clamped and fixed, the central hole of the end of the milling cutter is aligned with the thimble 70, and the central hole of the end of the milling cutter is propped against by the thimble 70, so that the rapid positioning of the milling cutter can be realized.
In order to achieve synchronous rotation of the transmission gears 43 of all the clamping units 40 driven by the driving unit 50, as shown in fig. 4, the driving unit 50 of the present embodiment includes a driving gear 51, a driving lever 52, and a rocking handle 53, the driving gear 51 is rotatably disposed at the rear side of the clamping disk 30, the transmission gears 43 of all the clamping units 40 are engaged with the driving gear 51, that is, the driving gear 51 is located between the transmission gears 43 of the plurality of clamping units 40, and each transmission gear 43 is engaged with the driving gear 51. Next, one end of the driving rod 52 is in transmission connection with the driving gear 51, so that the driving gear 51 can be driven to rotate when the driving rod 52 rotates, and the other end of the driving rod 52 penetrates through the rear side of the housing 20 in the horizontal direction and then is connected with the rocking handle 53, and the driving rod 52 is in rotational connection with the housing 20.
So set up, can realize driving the actuating lever 52 rotation through the outside rocking handle 53 of operation in casing 20, the actuating lever 52 can drive the driving gear 51 rotation this moment, and then realizes utilizing driving gear 51 to drive the synchronous rotation of the drive gear 43 of all clamping units 40, easy operation is convenient.
On the other hand, considering that in the prior art, in the process of machining the milling cutter, it may be necessary to adjust the machined surface of the milling cutter by rotating the milling cutter in the machining stage after the milling cutter is clamped and fixed, the clamping devices such as those mentioned in the background art are all provided with additional driving mechanisms to realize the rotation of the milling cutter, and the practicality is poor. Therefore, the structure of the clamping mechanism is further improved, so that the milling cutter clamping tool can be switched between two functions of clamping a fixed milling cutter and rotating the milling cutter according to the requirement, and the practicability of the milling cutter clamping tool is further improved.
Specifically, in order to achieve the rotational connection between the clamping disk 30 and the housing 20, as shown in fig. 7, the front side of the housing 20 is provided with a ring-shaped rotation groove 20a, and the rotation groove 20a is disposed around the opening of the housing 20, as shown in fig. 6, the rear side of the clamping disk 30 is provided with a rotation ring 30b adapted to the rotation groove 20a, and the rotation ring 30b is embedded in the rotation groove 20a, so that the rotation ring 30b can freely rotate in the rotation groove 20 a. At this time, in order to improve the stability of the clamping disk 30 when not rotated, the above-mentioned rotating ring 30b is made of a magnetic material, and the inner wall of the rotating groove 20a is provided with a magnetic layer, that is, when the rotating ring 30b is inserted into the rotating groove 20a, the rotating ring 30b can be absorbed by the magnetic layer in the rotating groove 20a, and at this time, the rotating ring 30b cannot rotate in the rotating groove 20a without a large external force, so that the clamping disk 30 and the housing 20 remain relatively stationary, which is beneficial to the corresponding clamping and fixing operation of the milling cutter, and when a large external force acts on the clamping disk 30, the rotating ring 30b can rotate in the rotating groove 20a, thereby realizing the rotation of the milling cutter which is clamped and fixed.
In order to enable the milling cutter clamping fixture to switch between clamping the fixed milling cutter and rotating the milling cutter, the clamping mechanism in this embodiment further comprises a transmission unit 80. As shown in fig. 4, the transmission unit 80 includes a first transmission sleeve 81, a second transmission sleeve 82, a tripod 83, a socket shaft 84, and a toggle assembly 85.
Wherein, in connection with what is shown in fig. 6 and 8, the first transmission sleeve 81 is disposed on a side of the driving gear 51 facing away from the clamping disk 30, the first transmission sleeve 81 is disposed coaxially with the driving gear 51, the inner wall of the first transmission sleeve 81 is provided with a first transmission boss 811, and the first transmission boss 811 extends along the axial direction of the first transmission sleeve 81.
With continued reference to fig. 6, the second transmission sleeve 82 is connected to the clamping disk 30 by a tripod 83, and the tripod 83 is illustrated as a bracket with three legs, so as to avoid interference between the tripod 83 and the toothed plate 42 or the transmission gear 43 of the clamping unit 40, the connection between the three legs of the tripod 83 and the clamping disk 30 is just between the transmission gears 43 of two adjacent clamping units 40, at this time, the second transmission sleeve 82, the first transmission sleeve 81, the driving gear 51 and the driving rod 52 are all coaxially arranged, and the first transmission sleeve 81 is located between the driving gear 51 and the second transmission sleeve 82, that is, the second transmission sleeve 82 is located behind the first transmission sleeve 81. Correspondingly, in connection with what is shown in fig. 9, the inner wall of the second transmission sleeve 82 is provided with a second transmission boss 821, the second transmission boss 821 extending in the axial direction of the second transmission sleeve 82.
Meanwhile, as shown in fig. 6 and 10, the plugging shaft 84 is sleeved at one end of the driving rod 52 far away from the rocking handle 53 and is coaxially arranged with the driving rod 52, and the plugging shaft 84 can slide along the axial direction of the driving rod 52, preferably, the plugging shaft 84 and the driving rod 52 are connected by a spline (not shown in the drawings) in the embodiment, so that the plugging shaft 84 can slide along the axial direction of the driving rod 52, and simultaneously, the plugging shaft 84 can be synchronously driven to rotate when the driving rod 52 rotates. At this time, the end of the plugging shaft 84 far away from the driving rod 52 passes through the second transmission sleeve 82 and then extends towards the direction where the first transmission sleeve 81 is located, and a third transmission boss 841 is disposed on the circumferential outer wall of the plugging shaft 84 between the first transmission sleeve 81 and the second transmission sleeve 82, the third transmission boss 841 extends along the axial direction of the plugging shaft 84, and the length of the third transmission boss 841 is not greater than the interval between the first transmission sleeve 81 and the second transmission sleeve 82.
The toggle assembly 85 is used for driving the plug shaft 84 to slide along the axial direction of the driving rod 52, so that the third transmission boss 841 on the plug shaft 84 can be inserted into the first transmission sleeve 81 or the second transmission sleeve 82.
That is, assuming that the third transmission boss 841 on the socket shaft 84 is located between the first transmission sleeve 81 and the second transmission sleeve 82 in the initial state, since neither the first transmission sleeve 81 nor the second transmission sleeve 82 is in transmission connection with the socket shaft 84, even when the crank 53 outside the housing 20 is operated to rotate the driving lever 52, the driving lever 52 can only idle the socket shaft 84 without transmission of force to rotate the first transmission sleeve 81 or the second transmission sleeve 82.
When the milling cutter needs to be clamped and fixed, the poking assembly 85 is used for poking the inserting shaft 84 towards the direction where the first transmission sleeve 81 is located, so that the inserting shaft 84 and the third transmission boss 841 are inserted into the first transmission sleeve 81, at the moment, if the driving rod 52 is rotated, the driving rod 52 drives the inserting shaft 84 to synchronously rotate, when the third transmission boss 841 on the inserting shaft 84 rotates to abut against the first transmission boss 811 in the first transmission sleeve 81 at a certain moment, the first transmission sleeve 81 synchronously rotates with the inserting shaft 84 under the transmission action of the third transmission boss 841 and the first transmission boss 811, and then the driving gear 51 is driven to rotate through the first transmission sleeve 81, so that the function of clamping and fixing the milling cutter is realized through operating the rocking handle 53.
On the contrary, when the fixed milling cutter needs to be clamped in a rotating way, the poking assembly 85 pokes the inserting shaft 84 in a direction far away from the first transmission sleeve 81, so that the inserting shaft 84 and the third transmission boss 841 extend out of the first transmission sleeve 81 completely and are inserted into the second transmission sleeve 82, if the driving rod 52 is rotated, the driving rod 52 drives the inserting shaft 84 to rotate synchronously, when the third transmission boss 841 on the inserting shaft 84 rotates to abut against the second transmission boss 821 in the second transmission sleeve 82 at a certain moment, the second transmission sleeve 82 rotates synchronously with the inserting shaft 84 under the transmission action of the third transmission boss 841 and the second transmission boss 821, and then the clamping disc 30 is driven to rotate through the second transmission sleeve 82 and the tripod 83, so that the function of realizing the rotation of the milling cutter by operating the rocking handle 53 is realized.
To achieve the axial movement of the plug shaft 84 along the driving rod 52 by using the toggle assembly 85, as shown in fig. 4 and 10, the toggle assembly 85 in this embodiment includes a toggle ring 851, a shift fork 852, and a toggle rod 853. The driving ring 851 is sleeved at one end of the plugging shaft 84 away from the first transmission sleeve 81 and is fixedly connected with the plugging shaft 84, and the second transmission sleeve 82 is located between the driving ring 851 and the first transmission sleeve 81, i.e. the driving ring 851 is located behind the second transmission sleeve 82.
Meanwhile, in combination with what is shown in fig. 11 and 12, the stirring ring 851 is provided with a stirring groove 851a along the circumferential direction thereof, the stirring fork 852 is in a U-shaped structure and is arranged on one side of the stirring ring 851, at this time, the stirring fork 852 is provided with two stirring arms 852a which are oppositely arranged, the two stirring arms 852a of the stirring fork 852 are slidably arranged in the stirring groove 851a, namely, the stirring ring 851 is positioned between the two stirring arms 852a of the stirring fork 852, one end of the stirring rod 853 is connected with one side of the stirring fork 852 far away from the stirring ring 851, the other end of the stirring rod 853 horizontally extends to the outside of the shell 20, at this time, the stirring rod 853 is hinged in the shell 20, specifically, in combination with what is shown in fig. 4 and 10, a hinge seat 854 is arranged on the inner wall of the rear side of the shell 20, the stirring rod 853 is hinged with the hinge seat 854 through a hinge shaft so as to form a hinge point, the stirring rod 853 can rotate with the hinge point as the center, in combination with what is shown in fig. 7, the outer wall of the shell 20 is provided with a dodge port 20b which is adapted to the stirring rod 853, and the movement of the dodge port 20b is adapted.
So configured, as shown in fig. 4, assuming that in the initial state, the axis of the toggle rod 853 is perpendicular to the axis of the toggle ring 851, at this time, the third transmission boss 841 on the plugging shaft 84 is just located between the first transmission sleeve 81 and the second transmission sleeve 82, when the milling cutter needs to be clamped and fixed, the toggle rod 853 is operated to extend to one end outside the housing 20, so that the toggle rod 853 rotates by a certain angle with the hinge point as the center of a circle, at this time, the toggle rod 853 drives the shift fork 852 to rotate, so that the toggle ring 851 and the plugging shaft 84 are shifted towards the direction of the first transmission sleeve 81 by the two toggle arms 852a of the shift fork 852, and then the plugging shaft 84 and the third transmission boss 841 are inserted into the first transmission sleeve 81, and thereafter, the milling cutter can be clamped and fixed by operating the rocking handle 53; on the contrary, when the milling cutter needs to be rotated, the toggle rod 853 is operated to extend to one end outside the housing 20, so that the toggle rod 853 reversely rotates by a certain angle with the hinging point as the circle center, and at this time, the toggle rod 853 drives the shifting fork 852 to reversely rotate, so that the toggle ring 851 and the plug shaft 84 are shifted towards the direction away from the first transmission sleeve 81 through the two toggle arms 852a of the shifting fork 852, and then the plug shaft 84 and the third transmission boss 841 are inserted into the second transmission sleeve 82, and thereafter, the milling cutter can be rotated by operating the rocking handle 53.
It will be appreciated that, in order to reduce the friction between the two toggle arms 852a of the shift fork 852 and the toggle groove 851a, in combination with the content shown in fig. 12, both sides of the two toggle arms 852a of the shift fork 852 opposite to each other are provided with a rotating wheel 852b, the rotating wheel 852b is rotatably connected with the toggle arms 852a of the shift fork 852, the rotating wheel 852b is located in the toggle groove 851a, and when the toggle ring 851 rotates under the drive of the plug shaft 84, the rotating wheel 852b can rotate freely in the toggle groove 851a, so as to avoid the shift fork 852 from affecting the normal rotation of the toggle ring 851 and the plug shaft 84.
In order to fix the rotated toggle rod 853, combining the contents shown in fig. 7 and fig. 10, a fixing plate 855 is disposed on the outer wall of the housing 20 below the avoidance opening 20b, a fixing groove 855a adapted to the rotation path of the toggle rod 853 is formed in the fixing plate 855, a fixing hole adapted to the fixing groove 855a is formed in one end, away from the shifting fork 852, of the toggle rod 853, a fixing bolt 856 is inserted into the fixing hole, and the toggle rod 853 is fixedly connected with the fixing plate 855 after the fixing bolt 856 passes through the fixing groove 855 a. So set up, when needs operate the poke rod 853 first pull down or unscrew fixing bolt 856 can, wait poke rod 853 rotate after in place again with fixing bolt 856 screw up can realize fixed poke rod 853's position, avoid operating rocking handle 53 in order to centre gripping fixed milling cutter or rotatory milling cutter when poke rod 853's position change, influence this milling cutter centre gripping frock normal use.
Therefore, the milling cutter clamping tool provided by the embodiment improves the clamping mechanism on the basis of the existing milling cutter clamping device, effectively simplifies the process of clamping and fixing the milling cutter, and accordingly improves the machining efficiency of the milling cutter to a certain extent. Meanwhile, the transmission unit 80 is additionally arranged, so that the milling cutter clamping tool can be switched between two functions of clamping a fixed milling cutter and rotating the milling cutter, and the practicality of the milling cutter clamping tool in the practical application process is further improved.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a milling cutter clamping fixture, includes mount pad and fixture, its characterized in that, fixture includes casing, grip block, a plurality of clamping unit and drive unit, the inside hollow structure that is of casing and its front side are equipped with the opening, the casing is fixed to be set up on the mount pad, the grip block sets up in the front side of casing, set up on the grip block with a plurality of clamping unit one-to-one's sliding tray, a plurality of the sliding tray takes the center of grip block as the centre of a circle and is annular array distribution, the sliding tray runs through the grip block setting, the one end of sliding tray is towards the center of grip block, the other end of sliding tray extends along the radial of grip block;
the clamping unit comprises a clamping seat, a toothed plate and a transmission gear, wherein the clamping seat is slidably arranged in the sliding groove and positioned at the front side of the clamping disc, the rear side of the clamping seat extends to the rear side of the clamping disc and then is connected with the toothed plate, the toothed plate extends along the length direction of the sliding groove, the transmission gear is rotatably arranged at the rear side of the clamping disc, and the transmission gear is meshed with the toothed plate;
the driving unit is used for driving the transmission gears of all the clamping units to synchronously rotate.
2. The milling cutter clamping tool according to claim 1, wherein the driving unit comprises a driving gear, a driving rod and a rocking handle, the driving gear is rotatably arranged at the rear side of the clamping disc, and transmission gears of all the clamping units are meshed with the driving gear;
one end of the driving rod is connected with the driving gear in a transmission way, the other end of the driving rod penetrates through the rear side of the shell in the horizontal direction and then is connected with the rocking handle, and the driving rod is rotationally connected with the shell.
3. The milling cutter clamping tool according to claim 2, wherein the clamping disc is rotationally connected with the housing, and the clamping mechanism further comprises a transmission unit;
the transmission unit comprises a first transmission sleeve, a second transmission sleeve, a tripod support, an inserting shaft and a poking assembly, wherein the first transmission sleeve is arranged on one side of the driving gear, which is away from the clamping disc, the first transmission sleeve and the driving gear are coaxially arranged, a first transmission boss is arranged on the inner wall of the first transmission sleeve, and the first transmission boss extends along the axial direction of the first transmission sleeve;
the second transmission sleeve is connected with the clamping disc through a tripod, the second transmission sleeve, the first transmission sleeve, the driving gear and the driving rod are all coaxially arranged, the first transmission sleeve is positioned between the driving gear and the second transmission sleeve, a second transmission boss is arranged on the inner wall of the second transmission sleeve, and the second transmission boss extends along the axial direction of the second transmission sleeve;
the connecting shaft is sleeved at one end of the driving rod far away from the rocking handle and is coaxially arranged with the driving rod, the connecting shaft can slide along the axial direction of the driving rod, one end of the connecting shaft far away from the driving rod penetrates through the second transmission sleeve and then extends towards the direction where the first transmission sleeve is located, a third transmission boss is arranged on the circumferential outer wall of the connecting shaft between the first transmission sleeve and the second transmission sleeve, the third transmission boss extends along the axial direction of the connecting shaft, and the length of the third transmission boss is not greater than the interval between the first transmission sleeve and the second transmission sleeve;
the poking assembly is used for driving the inserting shaft to slide along the axial direction of the driving rod, so that a third transmission boss on the inserting shaft is inserted into the first transmission sleeve or the second transmission sleeve.
4. The milling cutter clamping tool according to claim 3, wherein the stirring assembly comprises a stirring ring, a shifting fork and a stirring rod, the stirring ring is sleeved at one end of the plug shaft far away from the first transmission sleeve and is fixedly connected with the plug shaft, and the second transmission sleeve is positioned between the stirring ring and the first transmission sleeve;
the utility model discloses a toggle mechanism, including toggle ring, toggle rod, shift lever, the shift lever is provided with the toggle groove along its circumference, the shift fork is U type structure and sets up in one side of toggle ring, two toggle arms of shift fork slide and set up in the toggle inslot, one end of toggle rod links to each other with one side that the shift fork kept away from the toggle ring, the other end level of toggle rod extends to outside the casing, the toggle rod articulates in the casing, the outer wall of casing has been seted up and has been dodged the mouth with the toggle rod adaptation.
5. The milling cutter clamping tool according to claim 4, wherein a fixing plate is arranged on the outer wall of the shell below the avoidance opening, a fixing groove matched with the rotation path of the poking rod is formed in the fixing plate, a fixing hole matched with the fixing groove is formed in one end, away from the poking fork, of the poking rod, a fixing bolt is inserted into the fixing hole, and the fixing bolt penetrates through the fixing groove.
6. The milling cutter clamping tool according to claim 4, wherein two opposite sides of the poking arms of the poking fork are provided with rotating wheels, the rotating wheels are rotatably connected with the poking arms of the poking fork, and the rotating wheels are located in the poking grooves.
7. The milling cutter clamping tool according to claim 3, wherein an annular rotating groove is formed in the front side of the shell, a rotating ring matched with the rotating groove is arranged on the rear side of the clamping disc, and the rotating ring is embedded in the rotating groove;
the rotating ring is made of magnetic materials, and a magnetic layer is arranged on the inner wall of the rotating groove.
8. The milling cutter clamping tool according to claim 1, wherein one side of the clamping seat facing the center of the clamping disc is an arc-shaped surface, anti-skid patterns are arranged on the arc-shaped surface, and a thimble is arranged at the center position of the front side of the clamping disc.
9. The milling cutter clamping tool according to claim 1, wherein the top of the mounting seat is provided with a mounting groove matched with a shell, the shell is accommodated in the mounting groove, and the top surfaces of the mounting seats positioned on two sides of the mounting groove are provided with threaded holes;
the shell is characterized in that connecting plates are arranged on two sides of the shell and bear on the top surface of the mounting seat, and connecting holes matched with the threaded holes are formed in the connecting plates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310041054.1A CN116038446B (en) | 2023-01-11 | 2023-01-11 | Milling cutter clamping tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310041054.1A CN116038446B (en) | 2023-01-11 | 2023-01-11 | Milling cutter clamping tool |
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| CN116038446A true CN116038446A (en) | 2023-05-02 |
| CN116038446B CN116038446B (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310041054.1A Active CN116038446B (en) | 2023-01-11 | 2023-01-11 | Milling cutter clamping tool |
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|---|---|
| CN116038446B (en) | 2023-05-30 |
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