CN207027237U - Grind scissors and be used for the device for adjusting angle and distance in tool holder - Google Patents

Abstract

The utility model belongs to a device for adjusting angle and distance in a grinding scissors fixture, which includes a main shaft, on which a keyway is arranged, on which a length positioning component, an angle positioning component, and a clamp shell are set sequentially on the main shaft, and the angle positioning component is provided with a The sliding key matched with the keyway, the angle positioning component includes the angle positioning A part and the angle positioning B part set on the main shaft, the angle positioning A part is provided with an A stopper, the angle positioning B part is provided with a B stopper, and the angle positioning A part is provided with a stopper B. The part and the angular positioning part B are connected through the fixture shell, the bearing connection between the fixture shell and the angular positioning part A, the bearing connection between the fixture shell and the angular positioning part B, the A stopper and the B stopper match, and the fixture shell A positioning pin and a joint are also provided, and the positioning pin cooperates with the angle positioning assembly. The beneficial effect is that the work efficiency is improved, the angle of the scissors fixture can be accurately adjusted and positioned, and at the same time, the function of stretching the length of the fixture can be realized.

Description

Device for adjusting angle and distance in the jig of grinding scissors

technical field

The utility model belongs to a device for grinding or polishing scissors or scissor blades, in particular to a device for adjusting angle and distance in a grinding scissors fixture.

Background technique

Scissors are assembled from two scissor blades. During the manufacturing process of the scissor blades, the scissor blades are usually fixed on the scissors fixture and then ground against the electric grinder; in order to reduce the friction of the scissors during use Friction force requires processing part of the surface of the scissors into a concave shape to reduce the contact area between the two scissors. The traditional processing operation method is to manually put the scissor blades clamped in the scissors fixture against the grinding wheel, and then manually tilt the scissors fixture to a certain processing angle, so that the grinding wheel can grind the scissors blades; however, due to the limitation of physical strength of workers , it is difficult for workers to keep the scissors fixture at the same processing angle for a long time, and during the grinding process of the scissors, the hands of the worker supporting the scissors fixture will inevitably shake, which not only makes it difficult to ensure the grinding quality, but also greatly reduces work efficiency .

Invention patent: 2012103188494 discloses the front and rear inclination angle adjustment and positioning device of the scissors fixture in the scissors grinding machine, including: the main frame and the scissors fixture, and a front and rear inclination angle fine-tuning mechanism that can adjust the front and rear inclination angle of the scissors fixture is arranged between the main frame and the scissors fixture , its structure is: a cantilever beam is fixed on one side of the main frame, the other end of the connecting shaft fixed on the cantilever beam passes through the connecting plate and is set on the upper part of the cross-shaped connecting block, and the lower outside of the cross-shaped connecting block is fixed with Spring bracket, the spring bracket is provided with a compression spring, one end of the compression spring is connected with the spring bracket, the other end of the compression spring is connected with the positioning block, the positioning block is fixed with the connecting plate, and the connecting plate is fixed with the cantilever arm; The support plate, the inclination fine-tuning screw is pressed against the top surface of the left end of the cross-shaped connecting block after passing through the support plate. But this mechanism has only realized the function of adjusting angle and has not realized the function that distance can.

Utility model content

The utility model solves the problem that the angle adjustment and the length adjustment of the jig are realized simultaneously, and provides a device for adjusting the angle and the distance in the jig of grinding scissors.

The technical solution of the utility model is as follows: the device for adjusting the angle and distance in the scissors fixture includes a main shaft, the main shaft is provided with a keyway, and the main shaft is sequentially provided with a length positioning assembly, an angle positioning assembly, and a clamp The housing, the angle positioning assembly is provided with a sliding key matching the keyway, the angle positioning assembly includes an angle positioning A part and an angle positioning B part sleeved on the main shaft, and the angle positioning A part is provided with There is an A block, and the angle positioning part B is provided with a B block, and the angle positioning part A and the angle positioning part B are connected through a clamp shell, and the bearing between the clamp shell and the angle positioning part A Connection, the bearing connection between the clamp shell and the angle positioning part B, the A block is matched with the B block, the fixture shell is also provided with a positioning pin and a joint, the positioning pin and the angle positioning assembly Cooperate.

Further, the length positioning assembly includes a locking nut and a locking and fixing soft snare, the locking nut is provided with a tapered surface that cooperates with the locking and fixing soft snare, and the angle positioning assembly is provided with Has an external thread that mates with a lock nut.

Further, the locking and fixing soft snare is provided with a strip opening.

Further, the said feather key is arranged on the angle positioning part A.

Further, the external thread is provided on the angle positioning part A, and the angle positioning part B is provided with an annular groove matching with the positioning pin.

Further, the lock nut is also provided with an anti-off pin, and the angle positioning A part is also provided with an annular anti-off groove.

Further, an angle scale is also provided on the clamp shell.

Further, pins are also provided on the clamp housing, and an annular stopper is provided at one end of the clamp housing.

The realization process of the utility model: the positioning component, the angle positioning component, and the fixture shell are completely set on the main shaft and can slide along the main shaft, and the angle positioning part A is provided with a sliding key, which cooperates with the keyway on the main shaft, and the angle positioning part A It can only translate axially on the main shaft but not rotate, and the fixture shell and angular positioning part B are not in direct contact with the main shaft. Generally, when the angular positioning A and the main shaft rotate at the same time, the fixture shell and angular positioning part B will not be affected. However, when the A stopper provided on the angular positioning part A and the B stopper provided on the angular positioning part B are in contact with each other, the rotation of the angular positioning part A and the main shaft will drive the rotation of the angular positioning part B. The clamp shell There are also positioning pins and joints on the top. The joints are always fixed during work. The joints can be directly fixed or fixed on the immovable base. The positioning pins are matched with the annular grooves on the angle positioning part B. The positioning pins Once the angle positioning part B is tightened, it can no longer rotate, and when the A block and the B block contact each other, the angle positioning part A and the main shaft can no longer rotate, and the control of the angle of the grinding scissors fixture is realized. In the utility model, only the length The positioning component can be closely matched with the main shaft, so as to fix all the workpieces sleeved on the main shaft and no longer slide along the shaft. The length positioning component includes a length positioning component including a lock nut and a soft ring for locking and fixing. The lock nut There is a tapered surface that cooperates with the locking and fixing soft snare. The angle positioning component is provided with an external thread that cooperates with the lock nut. The locking and fixing soft snare is arranged between the lock nut and the external thread. When the lock nut is started to be tightened, the tapered surface will squeeze the locking and fixing soft ring, so that the locking and fixing soft ring is tightly attached to the main shaft, so that the locking and fixing soft ring cannot slide on the main shaft. The tight lock nut that is in close contact with the fixed soft snare cannot slide on the main shaft, and the angle positioning component threaded with the lock nut cannot slide on the main shaft, so the clamp shell cannot slide on the main shaft, and the distance adjustment to the clamp is realized. The angle adjustment and the distance adjustment of the utility model are realized on different workpieces but integrated.

The beneficial effect of the utility model lies in that the working efficiency is improved, the angle of the scissors clamp can be accurately adjusted and positioned, and at the same time, the function of stretching the length of the clamp can be realized.

Description of drawings

Figure 1 is an exploded view of a specific embodiment.

Fig. 2 is a sectional view of the workpiece exploded along the main shaft in the specific embodiment.

Fig. 3 is a cross-sectional view of a specific embodiment.

Fig. 4 is a working schematic diagram of removing the clamp shell of the specific embodiment.

Main shaft 1, angle positioning assembly 2, length positioning assembly 3, fixture housing 4, first bearing 5, second bearing 6, third bearing 7, keyway 11, feather key 21, angle positioning A piece 22, A block 23, Angle positioning B part 24, B block 25, annular groove 26, lock nut 31, soft locking ring 32, tapered surface 33, external thread 34, strip opening 35, anti-loosening pin 36, positioning pin 41, joint 42, the pin 43, the ring stopper 44, the first circlip groove 271, the first circlip 272, the second circlip groove 281, and the second circlip 282.

detailed description

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings.

Since the device realizes the function of adjusting the angle and distance of the fixture, it is easy to understand, and the two functions are explained separately.

Realization of fixture adjustment angle function:

The device used to adjust the angle and distance in the grinding scissors fixture includes a main shaft 1, as shown in Figure 2 or Figure 3, the main shaft 1 is provided with a keyway 11, and the main shaft 1 is sequentially sleeved on the main shaft 1 as shown in Figure 1 A length positioning assembly 3, an angle positioning assembly 2, and a fixture housing 4 are provided. The angle positioning assembly 2 includes an angle positioning A part 22 and an angle positioning B part 24 sleeved on the main shaft 1, as shown in FIG. 3 , the The angle positioning part A 22 is provided with a sliding key 21 that cooperates with the keyway 11, the clamp housing 4 is connected with the angle positioning part A 22 through the first bearing 5, and the clamp housing 4 is connected with the angle positioning B The parts 24 are connected by the second bearing 6 and the third bearing 7. Because the angle positioning part B has a long length and adopts two bearings, the effect is better. For the convenience of illustration, the first snap spring 272 and the third Two snap ring grooves 281 are drawn, after the actual assembly, the first snap ring 272 in Fig. 3 should block and fix the first bearing 5, and the second snap ring 282 should block and fix the third bearing 7. In this embodiment, the length positioning assembly 3, the angle positioning assembly 2, and the clamp housing 4 can all slide along the keyway 11 on the main shaft 1, and the angle positioning A part 22, the clamp housing 4, and the angle positioning B part 24 can also rotate with each other. But the angle positioning A part 22 is provided with a feather key, so the angle positioning A part 22 cannot rotate on the main shaft 1, and the clamp shell 4 and the angle positioning B part 24 are not affected.

As shown in any accompanying drawing of Fig. 1-Fig. 4, described angle positioning A part 22 is provided with A block 23, and described angle positioning B part 24 is provided with B block 25, and described A block 23 Cooperate with the B block 25, as shown in Figure 4, when the A block 23 and the B block 25 are in contact with each other, the relative rotation between the A block 23 and the B block 25 cannot occur, and at this time, the clamp housing 4 It can be rotated arbitrarily without being affected.

As shown in Figures 1 and 4, the fixture housing 4 is also provided with positioning pins 41 and joints 42, the joints 41 are always fixed during work, and the joints 41 can be fixed directly or indirectly on other immovable workpieces And do not specifically draw among the figure, described angular positioning B part 24 is provided with the annular groove 26 that cooperates with locating pin 41, because do not cut into the situation of the annular groove 26 that locating pin 41 cooperates in Fig. 3, still can As can be understood from FIG. 1 and FIG. 4 , the positioning pin 41 is screwed into the annular groove 26 , and the fixture housing 4 is fixed to the angle positioning part B 24 and cannot be rotated relative to each other.

To sum up, the joint 41 is always fixed when working, the positioning pin 41 is screwed to the annular groove 26, and the fixture shell 4 is fixed with the angular positioning B part 24 so that no relative rotation can occur again. When the A block 23 and the B block When the block 25 is not in contact, the angular positioning A part 22 can rotate freely. When the A block 23 and the B block 25 contact each other, the angular positioning A part cannot rotate, and the main shaft 1 can only be together with the angular positioning A part 22 Rotate, so when working, you only need to adjust the position of the angle positioning part B 24 and then tighten it to the annular groove 26 with the positioning pin 41 to fix it. The main shaft 1 and the angle positioning part A 22 rotate together to the A block 23 and the B block When 25 are in contact with each other, the main shaft 1 and the angle positioning part A 22 will no longer rotate, realizing the function of adjusting the angle of the clamp.

Furthermore, an angle scale 45 is also provided on the fixture shell 4, which facilitates the determination of the required angle by the angle positioning part B 24 and improves the accuracy.

Realization of fixture adjustment distance function:

As shown in any accompanying drawing in Figures 1-4, the length positioning assembly 3 includes a locking nut 31 and a locking and fixing soft snare 32, and the locking nut 31 is provided with a locking and fixing soft snare 32 Cooperating conical surface 33, said angle positioning part A 22 is provided with an external thread 34 that cooperates with the lock nut 31, and the locking and fixing soft snare 32 is arranged between the lock nut 31 and the external thread 34, combined with the figure 2 and Figure 3, when the lock nut 31 is tightened, the tapered surface 33 will squeeze the soft locking and fixing ring 32, so that the locking and fixing soft ring 32 is tightly attached to the main shaft 1, so that the locking If the fixed soft snare 32 cannot slide on the main shaft 1, then the locking nut 31 which is in close contact with the locking fixed soft snare 32 cannot slide on the main shaft 1, and the angle positioning assembly 2 threaded with the locking nut 31 cannot slide on the main shaft 1. 1, the fixture housing 4 cannot slide on the spindle 1. In addition, for the convenience of use, as shown in Figure 1, the locking and fixing soft snare 32 is provided with a strip opening 35, and when the tapered surface 33 does not squeeze the locking and fixing soft snare 32, the locking and fixing can be reduced. The friction between the fixed soft snare 32 and the main shaft is convenient for the main shaft to slide on the tight fixed soft snare 32.

In summary, after loosening the locking nut 31, the extended length of the main shaft can be adjusted, and after adjusting to a suitable position, tightening the locking nut 31 can fix the extended length of the main shaft, and one end of the main shaft is connected to the grinding scissors fixture , is no longer shown in the figure.

Further, as shown in Fig. 2 and Fig. 3, an anti-off pin 36 is provided inside the tightening lock nut 31, and an annular anti-off groove 29 is also provided on the angular positioning part A 22, considering that the soft snare 32 is easy to lock and fix from Falling out on the main shaft 1, the anti-off pin 36 clearance fits with the annular anti-off groove 29, which can realize the effect that the locking nut 31 is connected with the angle positioning A part 22 and prevents the locking and fixing soft snare 32 from slipping out.

Further, as shown in Figures 1-3, a pin 43 is also provided on the clamp housing 4, an annular stopper 44 is provided at one end of the clamp housing 4, and a first snap spring is provided on the angular positioning A part 22 Groove 271, first circlip groove 271 is provided with first circlip 272, described angle positioning B part 24 is provided with second circlip groove 281, and second circlip groove 281 is provided with second circlip 282 , as shown in FIG. 3 , the first bearing 5 is arranged between the annular stopper 44 and the first snap ring 272 and tightly fitted, and the third bearing 7 is arranged between the pin 43 and the second snap spring 282 and tightly fitted, The position of the first bearing 5 and the third bearing 7 is fixed, and the position of the clamp housing 4 is also fixed, so that the whole device is compactly matched.

The beneficial effect of the utility model lies in that the working efficiency is improved, the angle of the scissors clamp can be accurately adjusted and positioned, and at the same time, the function of stretching the length of the clamp can be realized.

Claims (9)

1. it is used for the device for adjusting angle and distance in the tool holder that grinds scissors, it is characterised in that：Including main shaft（1）, described main shaft （1）It is provided with keyway（11）, described main shaft（1）On be arranged with length positioning component successively（3）, angle positioning component（2）, folder Has shell（4）, described angle positioning component（3）It is provided with and keyway（11）The feather key of cooperation（21）, described angle positioning Component（2）Including being set in main shaft（1）On angle positioning A parts（22）, angle positioning B parts（24）, described angle positioning A parts （22）It is provided with A blocks（23）, described angle positioning B parts（24）Provided with B blocks（25）, described angle positioning A parts（22） B parts are positioned with angle（24）Between pass through fixture shell（4）Connection, described fixture shell（4）A parts are positioned with angle（22）It Between bearing connect, described fixture shell（4）B parts are positioned with angle（24）Between bearing connect, described A blocks（23）With B Block（25）It is engaged, described fixture shell（4）On be additionally provided with alignment pin（41）And joint（42）, alignment pin（41）With angle Positioning component（2）Coordinate.

2. it is used for the device for adjusting angle and distance in the tool holder according to claim 1 that grinds scissors, it is characterised in that：It is described Length positioning component（3）Include locking nut（31）, be locked soft snare（32）, described locking nut（31）On set Have and the soft snare that is locked（32）The taper surface of cooperation（33）, described angle positioning component（3）It is provided with and locking nut （31）The external screw thread of cooperation（34）.

3. it is used for the device for adjusting angle and distance in the tool holder according to claim 2 that grinds scissors, it is characterised in that：It is described The soft snare that is locked（32）It is provided with strip mouth（35）.

4. it is used for the device for adjusting angle and distance in the tool holder according to claim 2 that grinds scissors, it is characterised in that：It is described Feather key（21）It is arranged on angle positioning A parts（22）On.

5. it is used for the device for adjusting angle and distance in the tool holder according to claim 2 that grinds scissors, it is characterised in that：It is described Feather key（21）It is arranged on angle positioning B parts（24）On.

6. it is used for the device for adjusting angle and distance in the tool holder that grinds scissors according to claim 4 or 5, it is characterised in that： Described external screw thread（34）It is arranged on angle positioning A parts（22）On, described angle positioning B parts（24）It is provided with and alignment pin （41）The annular groove of cooperation（26）.

7. it is used for the device for adjusting angle and distance in the tool holder according to claim 6 that grinds scissors, it is characterised in that：It is described Fixture shell（4）On be additionally provided with angle index（45）.

8. it is used for the device for adjusting angle and distance in the tool holder according to claim 6 that grinds scissors, it is characterised in that：It is described Locking nut（31）On be additionally provided with locking pin（36）, described angle positioning A parts（22）On be additionally provided with annular anticreep groove（29）.

9. it is used for the device for adjusting angle and distance in the tool holder according to claim 6 that grinds scissors, it is characterised in that：It is described Fixture shell（4）On be additionally provided with pin（43）, fixture shell（4）One end be provided with annular catch（44）.