CN217292088U - Tool clamp for assembling wind wheel - Google Patents

Abstract

The utility model discloses a tooling fixture for assembling a wind wheel, which belongs to the technical field of wind wheel assembly and comprises a base and a clamping mechanism, wherein the base comprises a limiting groove, a first cavity, a notch and an opening, the limiting groove is arranged on the base, the first cavity is arranged in the base, the first cavity penetrates through the side wall of the base to form the opening, the first cavity is communicated with the bottom of the limiting groove by the notch, the clamping mechanism comprises a first supporting arm, a second supporting arm and a lead screw, the first supporting arm and the second supporting arm are rotationally connected in the first cavity, the first supporting arm and the second supporting arm are spirally connected on the lead screw, the first supporting arm and the second supporting arm move oppositely under the push of the lead screw, one part of the first supporting arm and the second supporting arm passes through the notch and extends into the limiting groove, the clamping arm acts on the inner hole wall of the wind wheel bushing to fix the bushing on the base, the clamping mechanism can clamp the wind wheel bushing with the size, and the lead screw and the clamping arm are connected by self-locking screw thread, the bush can be conveniently fixed on the base, and after the wind wheel is assembled, the whole wind wheel is easy to take down.

Description

Frock clamp of assembly wind wheel

Technical Field

The utility model relates to a wind wheel assembly technical field, concretely relates to frock clamp of assembly wind wheel.

Background

The wind wheel generally comprises a lining, a hub and fan blades, all components are required to be assembled into a whole finally when the wind wheel is manufactured, the number of the fan blades of a small and medium-sized fan wheel is generally three to six, the fan blades are slender and light, the accuracy and efficiency of assembling the wind wheel are improved, the yield of the wind wheel is improved, when the wind wheel is assembled manually, all the components are required to be fixed on a wind wheel clamp for assembly, the existing wind wheel clamp is complicated to use, the wind wheels with different sizes correspond to different clamps and cannot be used in a mixed mode, the time of operators is wasted, and the assembly complexity is increased.

The patent that has the notice number of CN213497384U now discloses a wind wheel welding frock clamp, including the base, is fixed with the dabber on the base, and the coaxial cover of wind wheel back dish is established at the spindle, and the wind wheel back dish is close to one side and the base butt of base, the spindle can be dismantled and be fixed with the locating rack, the border position shaping of locating rack has the constant head tank that is used for inlaying and establishes wind wheel blade, the constant head tank is provided with a plurality ofly around the even interval of dabber on the locating rack, be provided with the spacing subassembly that is used for fixed wind wheel blade on the base, this anchor clamps need dismantle the dabber, use loaded down with trivial details, and an anchor clamps only can correspond the wind wheel of a specification, and application scope is narrow, has certain limitation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frock clamp of assembly wind wheel, this frock clamp can fix a position the nut and the wind wheel bush of a plurality of specifications of centre gripping, is suitable for a plurality of specifications wind wheel assembly to use, and loads the wind wheel part operation few, has solved wind wheel assembly step loaded down with trivial details, the not general problem of anchor clamps.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

the utility model provides an assembly wind wheel's frock clamp, includes base and fixture, the base includes spacing groove, cavity one, breach and opening, the spacing groove sets up on the base, cavity one sets up in the base, cavity one pierces through the lateral wall of base forms the opening, cavity one with the bottom of spacing groove by the breach intercommunication, fixture includes first brace, second brace and lead screw, the lead screw rotates to be connected in the cavity one, first brace with second brace spiral connection is in on the lead screw, first brace with the second brace is in the opposite direction motion under the promotion of lead screw, first brace with part of second brace passes the breach stretches into in the spacing groove.

The base still includes a plurality of constant head tanks, and is a plurality of the constant head tank sets up on the base for hold the nut.

The base further comprises a plurality of second cavities, and the second cavities are arranged on the inner wall of the positioning groove and used for accommodating the nut positioning device.

Still include a plurality of nut positioner, nut positioner includes a plurality of fixture blocks and elastic element, fixture block sliding connection be in the cavity one, elastic element's one end with the fixture block is contradicted, the other end with the inner wall of cavity one is contradicted, can press from both sides the nut of tight a plurality of specifications.

And the plurality of nut positioning devices are symmetrically arranged along the central line of the positioning groove, so that the installed nuts can be aligned to the bolt holes in the hub.

First bracer includes first swivel nut, positive thread tooth and first arch, positive thread tooth sets up on the inner wall of first swivel nut, first arch sets up on the outer wall of first swivel nut, the second bracer includes second swivel nut, anti-thread tooth and second arch, anti-thread tooth sets up on the inner wall of second swivel nut, the second arch sets up on the outer wall of second swivel nut, during first bracer and second bracer stretched into the hole of bush, outwards supported the bush tightly again.

First brace arm still includes first clutch blocks, first clutch blocks sets up first bellied upper portion, the second brace arm still includes the second clutch blocks, the second clutch blocks sets up on the bellied upper portion of second, first clutch blocks with the second clutch blocks sets up dorsad, and first clutch blocks and the direct inner wall contact with the bush of second clutch blocks prevent the bush of flowers disorder.

The clamping mechanism further comprises a crank, wherein the crank is movably connected to one outward end of the screw rod and used for clamping or loosening the first supporting arm and the second supporting arm by an operator.

The base is characterized by further comprising at least one fixing groove, wherein the at least one fixing groove is formed in the bottom surface of the base and used for fixing the base on the workbench quickly.

The cross section of the limiting groove is arranged to be in a star shape and used for matching with the bushing with the rib to prevent the bushing from rotating on the base.

The utility model has the advantages that:

(1) be equipped with lead screw driven fixture on this frock clamp, the last arm lock that has two ability relative motions of fixture, the arm lock is through the inner hole wall that acts on the wind wheel bush, fixes the bush on the base, fixture can the big or small wind wheel bush of centre gripping, and lead screw and arm lock adoption auto-lock threaded connection, can be convenient fix the bush on the base, after the wind wheel is accomplished in the assembly, it is easy to take off whole wind wheel.

(2) The tool clamp is further provided with a nut positioning device for positioning and fixing nuts of various specifications, so that the operation difficulty is reduced when the wind wheel is fastened, and the assembly efficiency of the wind wheel is improved.

(3) Still be equipped with the fixed slot on this frock clamp, can fix the base on different table surfaces, added the stability of base, improve the precision of wind wheel assembly.

Drawings

Fig. 1 is an exploded view of a tooling fixture for assembling a wind wheel provided by the present invention;

fig. 2 is an axonometric view of the tooling fixture for assembling the wind wheel provided by the utility model;

fig. 3 is a front view of the tooling fixture for assembling the wind wheel provided by the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 6 is an isometric view of a base provided by the present invention;

fig. 7 is a front view of a base provided by the present invention;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a cross-sectional view taken along line D-D of FIG. 7;

fig. 10 is a top view of the base provided by the present invention;

fig. 11 is an isometric view of a first brace provided by the present invention;

fig. 12 is a front view of a first brace provided by the present invention;

FIG. 13 is a cross-sectional view taken along line E-E of FIG. 12;

fig. 14 is an isometric view of a second brace provided by the present invention;

fig. 15 is a front view of a second brace provided by the present invention;

fig. 16 is a cross-sectional view taken along F-F of fig. 15.

Reference numerals:

1. a base; 11. a limiting groove; 12. positioning a groove; 13. a second cavity; 14. a first cavity; 15. a notch; 16. fixing grooves; 17. an opening; 2. a clamping mechanism; 21. a first arm brace; 211. a first threaded sleeve; 212. a positive thread; 213. a first protrusion; 214. a first friction block; 22. a second arm brace; 221. a second thread insert; 222. a reverse thread; 223. a second protrusion; 224. a second friction block; 23. a screw rod; 24. a crank; 3. a nut positioning device; 31. a clamping block; 32. an elastic element; 4. a nut with a cap; 5. a bushing; 6. a hub; 7. and fan blades.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example one

As shown in fig. 1-5, a tooling fixture for assembling a wind wheel comprises a base 1 and a clamping mechanism 2, wherein the base 1 comprises a limiting groove 11, a first cavity 14, a notch 15 and an opening 17, the limiting groove 11 is located on the base 1, the first cavity 14 is located inside the base 1, the first cavity 14 penetrates through the side wall of the base 1 to form the opening 17, the first cavity 14 is communicated with the bottom of the limiting groove 11 through the notch 15, the clamping mechanism 2 comprises a first supporting arm 21, a second supporting arm 22 and a screw rod 23, the screw rod 23 is rotatably connected in the first cavity 14, the first supporting arm 21 and the second supporting arm 22 are spirally connected to the screw rod 23, the first supporting arm 21 and the second supporting arm 22 move in the opposite direction under the pushing of the screw rod 23, and a part of the first supporting arm 21 and the second supporting arm 22 penetrates through the notch 15 to extend into the limiting groove 11.

As shown in fig. 6-10, the base 1 is preferably a circular truncated cone composed of two cylinders with different sizes, is made of plastic, is light and durable, and is not easy to damage the hub 6 during assembly due to the characteristic of plastic soft materials.

Further, base 1 still is equipped with six constant head tanks 12, and six constant head tanks 12 set up on base 1, and distribute around the center of base 1 for hold fastening wheel hub 6's nut 4 with a cap, constant head tank 12 is hexagonal blind hole, and its cross-section is greater than nut 4 with a cap, can pack into the external diameter and be less than 20mm and the nut of different specifications.

Furthermore, the base 1 is further provided with twelve cavities two 13, the two cavities two 13 are arranged in a group around the axis of the base 1, the two cavities two 13 in the group are arranged on the inner wall of the positioning groove 12 along the center line of the positioning groove 12, and the two cavities two 13 penetrate through the inner wall of the positioning groove 12 and are communicated with the positioning groove 12, so as to accommodate the fixture block 31 and the elastic element 32 and limit the action stroke of the fixture block 31.

Preferably, the elastic member 32 employs a compression spring or an air spring for providing an elastic force for the movement of the latch 31 toward the center of the positioning groove 12 to clamp the bush 5.

Preferably, the screw 23 is further provided with an optical axis, the optical axis is located at one end, facing outwards, of the screw 23, a first through hole is drilled in the optical axis and used for being connected with the crank 24, the first supporting arm 21 and the second supporting arm 22 are conveniently driven to clamp the bushing 5, the other end of the screw 23 is located in the first cavity 14, the screw 23 is supported by the inner wall of the first cavity 14, stability of the screw 23 in the rotating process is kept, and the stability of the bushing 5 clamped by the first supporting arm 21 and the second supporting arm 22 on the screw 23 is improved.

Preferably, a ball bearing is arranged in the notch 15, an inner ring of the ball bearing is matched with the optical axis, and an outer ring of the ball bearing is matched with the inner wall of the first cavity 14, so that the friction force is reduced when the screw 23 rotates, the operation difficulty is reduced, the stability of the screw 23 during rotation is ensured, the first supporting arm 21 and the second supporting arm 22 move stably along the axis of the screw 23 during movement, and the bushing 5 is conveniently arranged in the limit groove 11.

Furthermore, the tooling fixture is further provided with twelve sets of nut positioning devices 3, each nut positioning device 3 comprises a fixture block 31 and an elastic element 32, each fixture block 31 is slidably connected into the corresponding first cavity 14, one end of each fixture block 31 protrudes out of the corresponding second cavity 13 and enters the corresponding first positioning groove 12, one end of each elastic element 32 is abutted against the corresponding fixture block 31, the other end of each elastic element is abutted against the inner wall of the corresponding first cavity 14, and the fixture blocks 31 are ejected out in the direction towards the center of the corresponding first positioning grooves 12 and used for clamping nuts of different specifications.

Preferably, two nut positioner 3 set up along the central line symmetry of constant head tank 12 for the center of nut coincides with the center of constant head tank 12, can aim at wind wheel hub 6's bolted connection hole, and symmetrical fixture block 31 restriction nut is rotatory in constant head tank 12, screws up penetrating the bolt when conveniently fastening the wind wheel.

As shown in fig. 11 to 16, further, the first brace 21 includes a first thread insert 211, a positive thread 212 and a first protrusion 213, the positive thread 212 is disposed on an inner wall of the first thread insert 211, the first protrusion 213 is integrally connected to an outer wall of the first thread insert 211, and extends into the limit groove 11, the length of the limit groove 11 is half of the depth of the limit groove 11, the second support arm 22 comprises a second thread sleeve 221, a reverse thread 222 and a second bulge 223, the reverse thread 222 is arranged on the inner wall of the second thread sleeve 221, the second bulge 223 is integrally connected on the outer wall of the second thread sleeve 221, the height of the second bulge 223 is equal to that of the first bulge 213, the positive thread 212 and the reverse thread 222 are trapezoidal threads, the thread form lead angle is not less than 75 degrees, the self-locking capability is realized, after the rotation of the screw rod 23 is stopped, the first arm 21 and the second arm 22 are retracted without receiving a reverse force from the bush 5.

Preferably, the first supporting arm 21 is further provided with a first friction block 214, the first friction block 214 is fixed on the upper portion of the first protrusion 213, the surface in contact with the bushing 5 is an arc surface, the second supporting arm 22 is further provided with a second friction block 224, the second friction block 224 is fixed on the upper portion of the second protrusion 223, the surface in contact with the bushing 5 is an arc surface, the first friction block 214 and the second friction block 224 face away from each other and face outwards along the center of the base 1, the first friction block 214 and the second friction block 224 are made of soft metal materials, anti-slip threads are machined on the surfaces of the first friction block 214 and the second friction block 224, the first supporting arm 21 and the second supporting arm 22 are prevented from scratching the inner surface of the bushing 5, the anti-slip threads increase the clamping force on the bushing 5, and the bushing 5 is not easy to loosen and shake from the base 1.

Preferably, a reinforcing rib is welded between the first protrusion 213 and the first thread insert 211, and similarly, a reinforcing rib is welded between the second protrusion 223 and the second thread insert 221, so as to reinforce the strength of the first protrusion 213 and the second protrusion 223, and prevent deformation of the wind wheel when the bushing 5 is clamped, so that the wind wheel is loosened on the fixture, and poor assembly precision is caused.

Preferably, the clamping mechanism 2 is further provided with a crank 24, the cross section of the crank 24 is spindle-shaped and is suitable for being held by an operator, a through hole II is drilled at one end of the crank 24 and is matched with the through hole I on the optical axis to achieve movable connection with the screw rod 23, the crank 24 completely extends out of the base 1, the screw rod 23 is convenient for the operator to rotate, and therefore the first supporting arm 21 and the second supporting arm 22 are pushed to clamp the bushing 5.

Preferably, six fixed slots 16 are further included, the six fixed slots 16 are arranged on the bottom surface of the base 1 and are uniformly distributed around the center of the base 1, the cross section of each fixed slot 16 is inverted T-shaped and is used for being matched with a clamping position on a desktop or a machine table to fix the base 1, and the six T-shaped fixed slots 16 are wide in application range and can be used on a plane or an inclined plane or an inverted plane.

Preferably, the limiting groove 11 is a blind groove, the cross section of which is shaped like a Chinese character 'x', and the limiting groove is used for being matched with ribs on the side edge of the bushing 5 to limit the rotation of the bushing 5 relative to the base 1, so that the stability of the wind wheel on the base 1 is improved, different clamps can be distinguished, and the management and the use of the clamps are facilitated.

The wind wheel tool clamp comprises the following use steps:

penetrating the fixed clamp into the fixed groove 16 by using bolts, placing the fixed clamp on a workbench, holding the crank 24 to rotate the screw rod 23 anticlockwise, drawing the first support arm 21 and the second support arm 22 close to the center of the base 1, taking a proper nut 4 with a cap, pushing the fixture block 31 open, placing the nut 4 with the cap into the positioning groove 12, enabling the cap edge of the nut 4 with the cap to be in contact with the upper end face of the base 1, sequentially placing six nuts 4 with the cap, taking the bushing 5 to be aligned with the center of the limiting groove 11, adjusting the direction of the bushing 5, placing the bushing 5 into the limiting groove 11, enabling the end face of the bushing 5 to be in contact with the upper end face of the base 1, rotating the crank 24 clockwise, pushing the first support arm 21 and the second support arm 22 by the screw rod 23 to move back to be far away from the center of the base 1 until the first friction block 214 and the second friction block 224 are tightly abutted against the inner hole wall of the bushing 5, folding the crank 24, sequentially assembling the hub 6 and the fan blade 7 on the bushing 5 and locking by using bolts, after the wind wheel is assembled, the crank 24 is rotated clockwise, the first supporting arm 21 and the second supporting arm 22 are loosened by the screw 23, and the wind wheel and the base 1 are separated by a tool along the contact surface of the bushing 5 and the base 1.

Example two

Referring to the same features of the embodiment, the description is omitted, the clamping mechanism 2 is driven by a worm and gear principle, the screw rod 23 is replaced by a worm, the lower ends of the first supporting arm 21 and the second supporting arm 22 are respectively provided with teeth with worm-shaped lines, the rotation directions of the teeth are opposite, the first supporting arm 21 and the second supporting arm 22 are guided by the notch 15, and the first supporting arm 21 and the second supporting arm 22 clamp the bushing 5 under the pushing of the worm, so that the bushing 5 can be prevented from loosening on the base 1 due to the self-locking capacity of the bushing.

Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.

Claims (10)

1. The utility model provides a frock clamp of assembly wind wheel, includes base (1) and fixture (2), base (1) includes spacing groove (11), cavity (14), breach (15) and opening (17), spacing groove (11) set up on base (1), cavity (14) set up in base (1), cavity (14) pierce through the lateral wall of base (1) forms opening (17), cavity (14) with the bottom of spacing groove (11) by breach (15) intercommunication, fixture (2) include first brace arm (21), second brace arm (22) and lead screw (23), its characterized in that, lead screw (23) rotate to be connected in cavity (14), first brace arm (21) with second brace arm (22) screwed connection is in lead screw (23), the first supporting arm (21) and the second supporting arm (22) move oppositely under the pushing of the screw rod (23), and a part of the first supporting arm (21) and the second supporting arm (22) penetrates through the notch (15) and extends into the limiting groove (11).

2. The tooling clamp for assembling the wind wheel according to claim 1, characterized in that:

the base (1) further comprises a plurality of positioning grooves (12), and the positioning grooves (12) are arranged on the base (1).

3. The tooling clamp for assembling the wind wheel according to claim 2, characterized in that:

the base (1) further comprises a plurality of second cavities (13), and the second cavities (13) are arranged on the inner wall of the positioning groove (12).

4. A tooling clamp for assembling a wind wheel according to claim 3, characterized in that:

still include a plurality of nut positioner (3), nut positioner (3) include a plurality of fixture blocks (31) and elastic element (32), fixture block (31) sliding connection be in cavity (14), the one end of elastic element (32) with fixture block (31) are contradicted, the other end with the inner wall of cavity (14) is contradicted.

5. A tooling clamp for assembling a wind wheel according to claim 4, characterized in that:

and the nut positioning devices (3) are symmetrically arranged along the central line of the positioning groove (12).

6. The tooling clamp for assembling the wind wheel according to claim 1, characterized in that:

first brace (21) include first swivel nut (211), positive thread tooth (212) and first arch (213), positive thread tooth (212) set up on the inner wall of first swivel nut (211), first arch (213) set up on the outer wall of first swivel nut (211), second brace (22) include second swivel nut (221), anti-thread tooth (222) and second arch (223), anti-thread tooth (222) set up on the inner wall of second swivel nut (221), second arch (223) set up on the outer wall of second swivel nut (221).

7. A tooling clamp for assembling a wind wheel according to claim 6, characterized in that:

the first brace arm (21) further comprises a first friction block (214), the first friction block (214) is arranged on the upper portion of the first protrusion (213), the second brace arm (22) further comprises a second friction block (224), the second friction block (224) is arranged on the upper portion of the second protrusion (223), and the first friction block (214) and the second friction block (224) are arranged to face away from each other.

8. The tooling clamp for assembling the wind wheel according to claim 1, characterized in that:

the clamping mechanism (2) further comprises a crank (24), and the crank (24) is movably connected to one outward end of the screw rod (23).

9. A tooling clamp for assembling a wind wheel according to any one of claims 1 to 8, characterized in that:

the base also comprises at least one fixing groove (16), and the at least one fixing groove (16) is arranged on the bottom surface of the base (1).

10. A tooling clamp for assembling a wind wheel according to any one of claims 1 to 8, characterized in that:

the cross section of the limiting groove (11) is arranged in an 'x' shape.

Images