CN112959109A - Universal shaft fixing and clamping tool - Google Patents
Universal shaft fixing and clamping tool Download PDFInfo
- Publication number
- CN112959109A CN112959109A CN202110266736.3A CN202110266736A CN112959109A CN 112959109 A CN112959109 A CN 112959109A CN 202110266736 A CN202110266736 A CN 202110266736A CN 112959109 A CN112959109 A CN 112959109A
- Authority
- CN
- China
- Prior art keywords
- block
- base
- sawtooth
- pressing block
- clamping block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention provides a universal shaft fixing and clamping tool which at least comprises a base and an upper clamping block, wherein the upper clamping block is movably connected with the base, and a shaft fixing opening is formed between the upper clamping block and the base. Go up the detachable fixing device that is connected with between clamp splice and the base, fixing device, base and last clamp splice surface are equipped with a plurality of sawtooth projections respectively, and the sawtooth projection on the fixing device is the mutual block of sawtooth projection with the sawtooth projection on base surface and the sawtooth projection on last clamp splice surface respectively. A pressing device is connected between the upper clamping block and the base. After the saw-toothed protrusions are clamped, positioning can be provided for the upper clamping block and the base, and meanwhile when the pressing device applies pressure, the plurality of saw-toothed protrusions jointly play a role in bearing the pressure, so that the problem that the service life of each component is short due to too concentrated pressure is avoided.
Description
Technical Field
The invention relates to the field of shaft clamping devices.
Background
In a test or machining process, shaft parts are often required to be fixed, in a traditional design, the shaft parts are generally clamped and fixed by a fixing tool designed to correspond to a special design (a shaft shoulder, a key groove, a spline and the like) on a shaft, and the fixing tool is lack of universality. Or two V-shaped blocks are used as clamping devices, and the two V-shaped blocks clamp the shaft and then clamp and fix the V-shaped blocks by using bolts. However, in the process of testing or machining large-batch parts, the disassembling and re-clamping operations of the bolt are time-consuming and labor-consuming, and the pretightening force of the bolt is too large, so that the thread of the bolt is seriously worn in the disassembling and assembling process, and the service life of an original tool is often very short.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing clamping device is lack of a universal type on one hand, the existing clamping device is completely fixed by a bolt on the other hand, the pre-tightening force requirement on the bolt is too large, the thread abrasion of the bolt is serious in the dismounting process, and the service life of the clamping device is short.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the invention provides a universal shaft fixing and clamping tool, which at least comprises:
a base;
the upper clamping block is movably connected with the base, and a shaft fixing port is formed between the upper clamping block and the base;
a fixing device is detachably connected between the upper clamping block and the base, a plurality of saw-toothed protrusions are respectively arranged on the surfaces of the fixing device, the base and the upper clamping block, and the saw-toothed protrusions on the fixing device are respectively clamped with the saw-toothed protrusions on the surface of the base and the saw-toothed protrusions on the surface of the upper clamping block;
and a pressing device is connected between the upper clamping block and the base.
Preferably, the fixing means comprises at least: the first locking block and the second locking block are respectively arranged on the left side and the right side of the base; the upper clamping block is provided with a first sawtooth surface, the first locking block is provided with a third sawtooth surface matched with the first sawtooth surface, and the first locking block is fixedly connected with the base; a second sawtooth surface is arranged on one side, far away from the first locking block, of the base, and a fourth sawtooth surface matched with the second sawtooth surface is arranged on the second locking block; the first sawtooth surface, the second sawtooth surface, the third sawtooth surface and the fourth sawtooth surface are respectively provided with the sawtooth-shaped bulges.
Further, the upper clamping block comprises an upper fixing block, the first sawtooth surface is arranged on the upper fixing block, and a plurality of first threaded holes are formed in the upper fixing block; the first locking block is provided with a first waist-shaped hole penetrating through two sides of the first locking block at a position corresponding to the first threaded hole, and a bolt is connected between the first waist-shaped hole and the first threaded hole.
Preferably, a second waist-shaped hole penetrating through the front and the back of the base is formed in the second sawtooth surface, and a bolt penetrates through the second locking block and the second waist-shaped hole and is in threaded connection with the pressing block on the other side.
Preferably, the sawtooth-shaped protrusions comprise supporting surfaces and transition inclined surfaces, and the supporting surfaces and the transition inclined surfaces are arranged at intervals; the pressing device is arranged on one side of the second pressing block, the supporting surface of the first sawtooth surface faces the upper part of the upper clamping block, and the supporting surface of the third sawtooth surface faces the lower part of the upper clamping block; the supporting surface on the second sawtooth surface faces to the lower part of the base, and the supporting surface on the fourth sawtooth surface faces to the upper part of the base.
Preferably, the pressing device comprises at least: one end of the handle is fixedly connected with an upper pressing block; the limiting block is detachably connected with the base; a lower pressing block is fixedly arranged at one end of the limiting block, and the limiting block or the lower pressing block is fixedly connected with the upper clamping block; the end face of the upper pressing block is respectively provided with an upper loose face and an upper tight face, and the upper tight face is higher than the upper loose face; the end surface of the lower pressing block facing the upper pressing block is respectively provided with a lower loose surface and a lower tight surface, and the lower tight surface is higher than the lower loose surface; an upper inclined plane is smoothly connected between the upper loose surface and the upper tightening surface, and a lower inclined plane is smoothly connected between the lower loose surface and the lower tightening surface; the upper pressing block is movably connected with the lower pressing block, and a vertical limiting mechanism is arranged between the upper pressing block and the lower pressing block.
Furthermore, a plurality of groups of upper loose surfaces and upper tight surfaces are arranged on the upper pressing block, the upper loose surfaces and the upper tight surfaces are uniformly distributed at intervals along the circumferential direction, the upper inclined surface is connected between only one side of each upper tight surface and the adjacent upper loose surface, an upper blocking surface is arranged between the other side of each upper tight surface and the adjacent upper loose surface, and the upper blocking surface is perpendicular to the upper loose surfaces; the lower pressing block is provided with a plurality of groups of lower loose surfaces and lower tight surfaces, the lower loose surfaces and the lower tight surfaces are uniformly distributed at intervals along the circumferential direction, a lower inclined surface is connected between one side of each lower tight surface and the adjacent lower loose surface, a lower blocking surface is arranged between the other side of each lower tight surface and the adjacent lower loose surface, and the lower blocking surface is perpendicular to the lower loose surfaces; the upper pressing block is movably connected with the lower pressing block in a rotating mode, the vertical limiting structure comprises a limiting bolt, an upper pressing block through hole is formed in the center of the upper pressing block, a lower screw hole is formed in the center of the lower pressing block, and the limiting bolt penetrates through the pressing block through hole and is in threaded connection with the lower screw hole.
Furthermore, go up the outer circumferencial direction of briquetting and go up the peripheral direction and surround and be equipped with a plurality of last dogs that extend along the axial, be equipped with on the outer circumferencial direction of briquetting down with the lower fender of last dog adaptation is fast.
Furthermore, the base is provided with a limiting guide groove which is matched with the limiting block and extends along the movable direction of the upper clamping block.
Preferably, the upper clamping block is provided with an upper V-shaped groove, the base is provided with a lower V-shaped groove, the upper V-shaped groove and the lower V-shaped groove jointly form the shaft fixing port, the included angle between the upper V-shaped groove and the lower V-shaped groove is alpha, and the alpha is larger than or equal to 90 degrees and smaller than 150 degrees.
The advantage of above-mentioned scheme lies in:
1. in the scheme, after the fixing device fixes the upper clamping block and the base to be clamped, the generated reaction stress is shared by the plurality of groups of the saw-toothed protrusions together, the stress shared by each saw-toothed protrusion is relatively small, the problem that the service life is short due to the fact that the structure of the universal shaft fixing and clamping tool is damaged due to too concentrated stress is effectively solved, the saw-toothed protrusions clamped with each other can provide a good fixing effect, and relative displacement between the upper clamping block and the base is prevented;
2. the universal shaft fixing and clamping tool is simple in structure, convenient to manufacture and capable of effectively controlling cost;
3. the fixing device is used for keeping the relative position between the upper clamping block and the base, the pressing device controls the upper clamping block to press downwards, so that the shaft is pressed tightly, and when the pressing device does not work, the interaction force between the upper clamping block and the base is small. Therefore, under the non-working state, the disassembly and the assembly of each component of the fixing device are more labor-saving and convenient, and the problem of serious abrasion in the disassembly process due to overlarge early warning force can not occur.
4. Due to the fact that the plurality of groups of saw-toothed protrusions are arranged, the upper clamping block can be clamped with different positions of the fixing device, when shaft parts of different sizes are tested, the size of the shaft fixing port can be adjusted only by adjusting the height of the upper clamping block, tools do not need to be replaced, and the test and the machining process are more convenient.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of a universal shaft clamping fixture;
FIG. 2 is a schematic illustration of the various components of the embodiments shown disassembled;
FIG. 3 is a schematic view from another side of the embodiment, with the components disassembled;
FIG. 4 is a schematic view of the hold-down device;
FIG. 5 is a schematic view of the upper press block;
FIG. 6 is a schematic view of a lower pressure block;
FIG. 7 is a schematic view of a serrated surface;
FIG. 8 is a schematic view showing the mating relationship between the first locking piece and the first serrated surface;
FIG. 9 is a schematic view showing the fitting relationship between the second locking blocks and the second serration surfaces;
FIG. 10 is a schematic view of the upper clamping block in a raised state;
description of reference numerals: 10-shaft fixing port, 101-supporting surface, 102-transition inclined surface, 103-upper V-shaped groove, 104-lower V-shaped groove, 11-upper clamping block, 110-upper fixing block, 111-first sawtooth surface, 112-first threaded hole, 12-base, 120-first waist-shaped hole, 1200-second through hole, 121-first locking block, 1211-third sawtooth surface, 122-second locking block, 1220-U-shaped groove, 1221-pressing block, 1222-fourth sawtooth surface, 123-limiting guide groove, 13-second sawtooth surface, 130-second waist-shaped hole, 14-bolt, 20-handle, 21-handle, 22-upper pressing block, 220-upper pressing block through hole, 221-upper loose surface, 222-upper inclined surface, 223-upper tight surface, 224-upper blocking surface, 225-upper stop block, 23-lower pressing block, 230-lower screw hole, 231-lower loose surface, 232-lower inclined surface, 233-lower tightening surface, 234-lower stop surface, 235-lower stop block, 24-limiting block, 240-limiting block through hole and 25-limiting bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.
A preferred embodiment of the universal shaft fixing and clamping tool is shown in fig. 1 to 3, and at least includes an upper clamping block 11 and a base 12, a fixing device and a pressing device are connected between the upper clamping block 11 and the base 12, and a shaft fixing port 10 is provided between the upper clamping block 11 and the base 12. The fixing device is fixedly connected with the upper clamping block 11 and the base 12, so that the upper clamping block 11 and the base 12 are kept relatively fixed during working, and after the fixing device is disassembled, the upper clamping block 11 can move relative to the base 12 along the vertical direction of the figure, so that the size of the shaft fixing port 10 is adjusted, and the shaft parts with different sizes are adapted. After the fixing device fixes the upper clamping block 11 and the base 12, the pressing device can be operated to drive the upper clamping block 11 to apply pressure to the base 12, so as to press the shaft parts in the shaft fixing opening 10.
The fixing device with go up between the clamp splice 11 and the fixing device with be equipped with the relative and interval arrangement's of a plurality of groups serration between the base 12, after the fixed mounting fixing device, the serration on the fixing device supports mutually with the serration of last clamp splice 11 and fixing device and base 12 to the serration plays the function of the relative displacement of production between the restriction upper clamp splice 11 and the base 12. In the process of applying pressure to the clamping block 11 in the driving of the pressing device, after reaction stress generated by the shaft part is transmitted to the upper clamping block 11 and the base 12, the part of stress is dispersed to each saw-toothed protrusion, and the stress is dispersed and borne by the plurality of groups of saw-toothed protrusions, so that the stress can be dispersed correspondingly, and the problem that the service life of the universal shaft fixing and clamping tool is shortened due to too concentrated reaction stress is avoided.
Specifically, the fixing device at least includes a first locking block 121 and a second locking block 122, the first locking block 121 and the second locking block 122 are respectively installed on the left side and the right side, and the moment of the upper clamping block 11 and the moment of the two sides of the base 12 are kept balanced. The upper clamping block 11 is provided with a first sawtooth surface 111, the first locking block 121 is provided with a third sawtooth surface 1211 matched with the first sawtooth surface 111, one side of the base 2, which is far away from the first locking block, is provided with a second sawtooth surface 13, the second locking block 122 is provided with a fourth sawtooth surface 1222 matched with the second sawtooth surface 13, and the first sawtooth surface 111, the second sawtooth surface 13, the third sawtooth surface 1211 and the fourth sawtooth surface 1222 are all provided with the sawtooth protrusions. After the first locking block 121 and the second locking block 122 are fixedly installed, the first serrated surface 111 and the third serrated surface 1211 are engaged with each other, and the serrated protrusions of the first serrated surface and the third serrated surface are distributed at intervals to have the function of bearing the reaction stress. Similarly, the second serrated surface 13 and the fourth serrated surface 1222 also function to bear the above-mentioned reaction stress after being matched.
The first locking block 121 and the second locking block 122 are detachably connected to the upper clamping block 11 and the base 12, and when the height of the upper clamping block 11 is adjusted, the first locking block 121 and the second locking block 122 need to be removed. In order to facilitate the detachment of the first locking block 121 and the second locking block 122, the following scheme is adopted in the present embodiment:
the upper clamping block 11 comprises an upper pressing block 1100 and an upper fixing block 110, the upper pressing block 1100 is hinged to the upper fixing block 110, the upper pressing block 1100 has a pressing function, the upper fixing block 110 has a positioning function, and the first sawtooth surface 111 is arranged on the upper fixing block 110. The first locking block 121 is provided with a first waist-shaped hole 120, the upper fixing block 110 is provided with a first threaded hole 112, and the bolt 14 penetrates through the first waist-shaped hole 120 to be in threaded connection with the first threaded hole 112, so that the first locking block 121 and the upper fixing block 110 are pressed and fixed. Similarly, the first locking block 121 and the base 12 are fixedly connected by bolts. The first kidney-shaped hole 120 has an advantage in that the bolt 14 can be installed at any position within the range of the first kidney-shaped hole 120, so that the upper clamping block 11 can be adjusted in height at will.
The second sawtooth surface 13 is provided with second kidney-shaped holes 130 penetrating through the front side and the rear side of the base 12. Similar to the above solution, the bolt 14 passes through the second locking block 122 and the second kidney-shaped hole 130 to achieve the function of fixedly connecting the second locking block 122 with the base 12. Considering that the second kidney-shaped hole 130 is difficult to be provided with threads, a pressing block 1221 is installed on one side of the base 12 facing away from the second sawtooth surface 13, internal threads are arranged in the pressing block 1221, the bolt 14 penetrates through the base 12 and then is in threaded connection with the pressing block 1221, and the bolt 14 and the pressing block 1221 press the second locking block 122 and the base 12 from two sides to achieve fixing. Also, the bolt 14 may be installed at any position within the second kidney-shaped hole 130, thereby facilitating adjustment of the position of the upper clamp block 11.
Preferably, the second locking block 122 is provided with a U-shaped groove 1220, and the bolt 14 is disposed through the U-shaped groove 1220. The advantage of this kind of scheme is that when dismantling second latch segment 122, need not completely unscrew bolt 14, only need unscrew the back with second latch segment 122 along transversely the roll-off can, it is more convenient to dismantle.
The specific structure of the serration is shown in fig. 7, the serration comprises a support surface 101 and a transition bevel 102, and the support surface 101 and the transition bevel 102 are arranged at intervals. Specifically, the first serrated surface 111 and the second serrated surface 13 respectively present a form that the supporting surface 101 on the first serrated surface 111 faces the upper side of the upper clamping block 11, and the supporting surface 101 on the second serrated surface 13 faces the lower side of the base 12, and the pressing device is disposed on one side of the second pressing block. The third and fourth serrated surfaces 1211 and 1222 also include a support surface 101 and a transition bevel 102, respectively.
Specifically, the third serrated surface 1211 and the first serrated surface 111 are connected in a matching manner as shown in fig. 8, the supporting surfaces 101 of the third serrated surface 1211 and the first serrated surface 111 are in contact and abut against each other, and the transition inclined surfaces 102 of the first locking block 121 and the upper clamping block 11 are also in contact with each other after the first locking block 121 and the upper clamping block 11 are completely closed. The fourth serrated surface 1222 is directly connected with the second serrated surface 13 in a matching manner as shown in fig. 9, and the supporting surfaces 101 of the fourth serrated surface 1222 and the second serrated surface 13 are also connected in a matching manner in a contact manner. The design of this kind of scheme aims at, because the closing device need to apply a downward pressure to clamp 11 and make upper clamp 11 and base 12 can press from both sides axle type part, therefore, the stress that receives on second sawtooth surface 13 side is down, and this stress is born by second latch segment 122, because the holding surface on second latch segment 122 is up at this moment, thus make the holding power that provides keep on a straight line with the stress that bears, not only can play fine supporting role, can also avoid taking place to skid between fourth sawtooth surface 1222 and second sawtooth surface 13. Correspondingly, the stress on one side of the first sawtooth surface 111 is upward, and the stress is borne by the first locking block 121, so that the supporting surface 101 of the first locking block 121 is upward, and the good supporting function and the anti-slip function are also achieved.
The function of pressing down the upper clamping block 11 is realized by a pressing device, specifically, the structure of the pressing device is as shown in fig. 4 to fig. 6, and includes a handle 21 and a limit block 24, the limit block 24 is detachably and fixedly connected to the base 12, and the limit block 24 is fixedly connected to the upper clamping block 11, in this embodiment, a limit block through hole 240 is formed in the lower portion of the limit block 24, and the bolt 14 penetrating through the second locking block 122 penetrates through the limit block through hole 240 together, so that the fixing of the pressing device is realized.
One end of the handle 21 is fixedly connected with a handle 20, and the handle 20 has a larger area than the handle 21 and is convenient to hold by hands.
An upper pressing block 22 is fixedly arranged at the other end of the handle 21, a lower pressing block 23 is correspondingly fixedly arranged at the upper end of the limiting block 24, and the upper pressing block 22 is movably connected with the lower pressing block 23. Specifically, an upper loose surface 221 and an upper loose surface 223 are respectively arranged on the lower end surface of the upper pressing block 22, wherein the upper loose surface 223 is higher than the upper loose surface 221, and an upper inclined surface 222 is smoothly connected between the upper loose surface 223 and the upper loose surface 221. Correspondingly, the lower pressing block 23 is also provided with a lower loose surface 231 and a lower tight surface 233, and the lower pressing block 23 is also provided with a lower inclined surface 232 between the lower loose surface 231 and the lower tight surface 233. A vertical limiting structure is further arranged between the upper pressing block 22 and the lower pressing block 23, and the vertical limiting structure can limit the vertical displacement amplitude of the upper pressing block 22, so that the upper pressing block 22 can normally apply pressure.
The working principle of the scheme is that when the upper clamping block 11 is kept loose, the lower tightening surface 233 is close to the upper loosening surface 221, and almost no interaction force exists between the upper pressing block 22 and the lower pressing block 23; when the pressing device applies pressure to the upper clamping block 11, the handle 20 is held, the handle 21 is controlled to move, the lower tightening surface 233 slides to the position contacting with the upper tightening surface 223 along the upper inclined surface 222 in the process, at the moment, the lower tightening surface 233 and the upper tightening surface 223 are arranged in a protruding mode, so that the distance between the upper pressing block 22 and the lower pressing block 23 is correspondingly increased, but due to the limitation of the vertical limiting mechanism, the upper pressing block 22 cannot rise greatly, the upper pressing block 22 can apply pressure to the lower pressing block 23, and the upper clamping block 11 is driven to press the base 12 downwards after the pressure is transmitted to the upper clamping block 11, so that the pressing function of the pressing device is achieved.
In this embodiment, the upper pressing block 22 is rotatably and movably connected to the lower pressing block 23, and correspondingly, a plurality of groups of the upper elastic surface 221, the upper inclined surface 222 and the upper tightening surface 223 are uniformly arranged along the circumferential direction, wherein the upper inclined surface 222 is connected between only one side of the upper tightening surface 223 and the adjacent upper elastic surface 221, and an upper blocking surface 224 perpendicular to the upper elastic surface 221 is arranged between the other side of the upper tightening surface 223 and the upper tightening surface 221. The corresponding lower loose surface 231, lower inclined surface 232 and lower tight surface 233 of the lower pressing block 23 are also arranged along the circumferential direction and are also provided with a lower blocking surface 234. In this arrangement, rotation of upper press 22 causes the distance between upper press 22 and lower press 23 to vary, thereby applying pressure. Corresponding with this scheme, vertical limit structure includes limit bolt 25, it is equipped with briquetting through-hole 220 to go up briquetting 22 center, the center of briquetting 23 is equipped with down screw 230 down, and limit bolt 25 passes briquetting through-hole 220 and with screw 230 threaded connection down, pushes down go up briquetting 22 and briquetting 23 down, but should notice that limit bolt 25 can not be screwed up tightly, prevents to appear the unable pivoted problem of briquetting 22.
In the above-mentioned solution, the upper and lower blocking surfaces 224 and 234 are designed to limit the rotation direction of the upper pressing block 22, and when the upper pressing block 22 rotates in the reverse direction, the upper blocking surface 224 collides with the lower blocking surface 234 to prevent the upper pressing block 22 from rotating.
In order to further limit the rotation direction and the rotation angle of the upper pressing block 22 and prevent the upper pressing block 22 from being rotated to an improper position, a plurality of upper stoppers 225 extending along the axial direction are circumferentially arranged on the outer circumference of the upper pressing block, and similarly, a lower stopper 235 is arranged on the outer circumference of the lower pressing block 23. After the upper pressing block 22 rotates a certain amount, the upper stopper 225 collides with the lower stopper 235, thereby preventing the upper pressing block 22 from rotating too much.
Further, a limiting guide groove 123 is further arranged on the base 12, the limiting guide groove 123 is adapted to the limiting block 24, and the limiting guide groove 123 is arranged along the movable direction of the upper clamping block 11. The limiting guide groove 123 has a function of guiding the limiting block 24 to slide, and provides a limiting function in the process that the upper clamping block 11 moves up and down.
As shown in fig. 10, the upper clamping block 11 can move up and down, so that the size of the shaft fixing opening 10 changes, thereby clamping shaft parts with different sizes. In order to enable the shaft parts to be clamped more stably, an upper V-shaped groove 103 is formed in the upper clamping block 11, a lower V-shaped groove 104 is formed in the base 12, and the shaft fixing opening 10 is formed by the upper V-shaped groove 103 and the lower V-shaped groove 104 in a surrounding mode. Meanwhile, practical application proves that when the included angle alpha of each of the upper V-shaped groove 103 and the lower V-shaped groove 104 is more than or equal to 90 degrees and less than 150 degrees, the fixing effect is excellent.
In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a tight frock of general type axle fixation clamp which characterized in that includes at least:
a base (12);
the upper clamping block (11) is movably connected with the base, and a shaft fixing opening (10) is formed between the upper clamping block and the base;
a fixing device is detachably connected between the upper clamping block and the base, a plurality of saw-toothed protrusions are respectively arranged on the surfaces of the fixing device, the base and the upper clamping block, and the saw-toothed protrusions on the fixing device are respectively clamped with the saw-toothed protrusions on the surface of the base and the saw-toothed protrusions on the surface of the upper clamping block;
and a pressing device is connected between the upper clamping block and the base.
2. The universal shaft fixing and clamping tool according to claim 1, wherein the fixing device at least comprises:
the locking device comprises a first locking block (121) and a second locking block (122), wherein the first locking block and the second locking block are respectively arranged on the left side and the right side of the base;
a first sawtooth surface (111) is arranged on the upper clamping block, a third sawtooth surface (1211) matched with the first sawtooth surface is arranged on the first locking block, and the first locking block is fixedly connected with the base;
a second sawtooth surface (13) is arranged on one side, far away from the first locking block, of the base, and a fourth sawtooth surface (1222) matched with the second sawtooth surface is arranged on the second locking block;
the first sawtooth surface, the second sawtooth surface, the third sawtooth surface and the fourth sawtooth surface are respectively provided with the sawtooth-shaped bulges.
3. The universal shaft fixing and clamping tool as claimed in claim 2, wherein the upper clamping block comprises an upper fixing block (110), the first sawtooth surface is arranged on the upper fixing block, and a plurality of first threaded holes (112) are formed in the upper fixing block;
and a first waist-shaped hole (120) penetrating through two sides of the first locking block is formed in the position, corresponding to the first threaded hole, of the first locking block, and a bolt (14) is connected between the first waist-shaped hole and the first threaded hole.
4. The universal shaft fixing and clamping tool as claimed in claim 2, wherein a second kidney-shaped hole (130) penetrating through the front and the back of the base is formed in the second sawtooth surface, and a bolt penetrates through the second locking block and the second kidney-shaped hole and is in threaded connection with a pressing block (1221) on the other side.
5. The universal shaft fixing and clamping tool as claimed in claim 2, wherein the sawtooth-shaped protrusions comprise supporting surfaces (101) and transition inclined surfaces (102), and the supporting surfaces and the transition inclined surfaces are arranged at intervals;
the pressing device is arranged on one side of the second pressing block, the supporting surface of the first sawtooth surface faces the upper part of the upper clamping block, and the supporting surface of the third sawtooth surface faces the lower part of the upper clamping block; the supporting surface on the second sawtooth surface faces to the lower part of the base, and the supporting surface on the fourth sawtooth surface faces to the upper part of the base.
6. The universal shaft fixing and clamping tool as claimed in claim 1, wherein the pressing device at least comprises:
a handle (21), one end of which is fixedly connected with an upper pressing block (22);
a limiting block (24) which is detachably connected with the base; a lower pressing block (23) is fixedly arranged at one end of the limiting block, and the limiting block or the lower pressing block is fixedly connected with the upper clamping block;
the end surface of the upper pressing block is respectively provided with an upper loose surface (221) and an upper tightening surface (223), and the upper tightening surface is higher than the upper loose surface;
the end face of the lower pressing block facing the upper pressing block is respectively provided with a lower loose surface (231) and a lower tight surface (233), and the lower tight surface is higher than the lower loose surface;
an upper inclined plane (222) is smoothly connected between the upper loose surface and the upper tightening surface, and a lower inclined plane (232) is smoothly connected between the lower loose surface and the lower tightening surface;
the upper pressing block is movably connected with the lower pressing block, and a vertical limiting mechanism is arranged between the upper pressing block and the lower pressing block.
7. The universal shaft fixing and clamping tool according to claim 6, wherein a plurality of groups of the upper loosening faces and the upper tightening faces are arranged on the upper pressing block, the upper loosening faces and the upper tightening faces are evenly distributed at intervals along the circumferential direction, the upper inclined faces are connected between only one side of each upper tightening face and the adjacent upper loosening face, an upper blocking face (224) is arranged between the other side of each upper tightening face and the adjacent upper loosening face, and the upper blocking face is perpendicular to the upper loosening face;
the lower pressing block is provided with a plurality of groups of lower loose surfaces and lower tight surfaces, the lower loose surfaces and the lower tight surfaces are uniformly distributed at intervals along the circumferential direction, a lower inclined surface is connected between one side of each lower tight surface and the adjacent lower loose surface, a lower blocking surface (234) is arranged between the other side of each lower tight surface and the adjacent lower loose surface, and the lower blocking surface is perpendicular to the lower loose surfaces;
the upper pressing block is movably connected with the lower pressing block in a rotating mode, the vertical limiting structure comprises a limiting bolt (25), an upper pressing block through hole (220) is formed in the center of the upper pressing block, a lower screw hole (230) is formed in the center of the lower pressing block, and the limiting bolt penetrates through the pressing block through hole and is in threaded connection with the lower screw hole.
8. The universal type shaft fixing and clamping tool according to claim 7, wherein a plurality of axially extending upper stop blocks (225) are circumferentially arranged on the outer circumference of the upper pressing block, and a lower stop block (235) matched with the upper stop blocks is arranged on the outer circumference of the lower pressing block.
9. The universal shaft fixing and clamping tool according to claim 6, wherein a limiting guide groove (123) adapted to the limiting block and extending along the movable direction of the upper clamping block is formed in the base.
10. The universal shaft fixing and clamping tool according to any one of claims 1 to 9, wherein an upper V-shaped groove (103) is formed in the upper clamping block, a lower V-shaped groove (104) is formed in the base, the upper V-shaped groove and the lower V-shaped groove jointly form the shaft fixing port, the included angle between the upper V-shaped groove and the lower V-shaped groove is alpha, and the alpha is greater than or equal to 90 degrees and less than 150 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266736.3A CN112959109A (en) | 2021-03-11 | 2021-03-11 | Universal shaft fixing and clamping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266736.3A CN112959109A (en) | 2021-03-11 | 2021-03-11 | Universal shaft fixing and clamping tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112959109A true CN112959109A (en) | 2021-06-15 |
Family
ID=76277301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110266736.3A Pending CN112959109A (en) | 2021-03-11 | 2021-03-11 | Universal shaft fixing and clamping tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112959109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857646A (en) * | 2021-10-27 | 2021-12-31 | 中国航空制造技术研究院 | Fixing method of part to be welded suitable for linear friction welding |
-
2021
- 2021-03-11 CN CN202110266736.3A patent/CN112959109A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857646A (en) * | 2021-10-27 | 2021-12-31 | 中国航空制造技术研究院 | Fixing method of part to be welded suitable for linear friction welding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8272629B2 (en) | Swing clamp apparatus | |
| GB2094191A (en) | Boring tool shank | |
| KR101934511B1 (en) | Coupler for clamping polishing disk | |
| CN112959109A (en) | Universal shaft fixing and clamping tool | |
| WO2000027587A1 (en) | Mounting assembly | |
| CN214816667U (en) | Universal shaft fixing and clamping tool | |
| CN206795287U (en) | Milling machine stationary fixture | |
| CN110000738B (en) | Assembling tool for bolt | |
| US20050087937A1 (en) | Lock type manually tightened chuck | |
| CN212583795U (en) | Quick dismounting mechanism for automobile water pump | |
| CN212794756U (en) | Adjustable spanner | |
| CN213730621U (en) | Novel turning fixture for thin-wall end cover of explosion-proof motor | |
| CN213258260U (en) | Multi-angle positioning fixture for cylindrical workpiece | |
| CN213205299U (en) | Engine cover opening handle base | |
| CN112025357A (en) | Bearing cap fixing device | |
| CN209887528U (en) | Valve core disassembling tool | |
| CN216883797U (en) | Return to well mechanism nut locking frock | |
| TWM530194U (en) | Cutting tool holding mechanism | |
| EP3434433A1 (en) | Cutting tool holding device | |
| CN215431593U (en) | Jack catch structure, anchor clamps and lathe equipment | |
| CN212311473U (en) | Bearing cap fixing device | |
| CN212398613U (en) | Ball locking weld nut fixture device | |
| CN218235900U (en) | Brake caliper and working machine | |
| JPH09136267A (en) | Socket | |
| CN213197372U (en) | Hydraulic mechanism dismouting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |