CN210209435U - Clamp for outer star wheel and turning machine tool applying clamp - Google Patents

Abstract

The utility model discloses an anchor clamps for besides-star gear and use its turning lathe relates to besides-star gear processing technology field, including main clamping part and vice clamping part, main clamping part is including the location cylinder, connecting block and arc piece, the coaxial setting of location cylinder is in one side of drive shaft, the connecting block can be dismantled and set up between drive shaft and location cylinder, be used for connecting drive shaft and location cylinder, the arc piece sets up in the cylindrical periphery side of location, be used for cooperateing with the besides-star gear lane, this kind of anchor clamps for besides-star gear and use its turning lathe like this, through the connecting block that can dismantle of addding between drive shaft in the main clamping part and the location cylinder, make things convenient for the staff to carry out quick replacement according to the quantity difference of besides-star gear lane, the selection carries out quick replacement to the location cylinder that has corresponding quantity arc piece, the practicality is high and connect more firm.

Description

Clamp for outer star wheel and turning machine tool applying clamp

Technical Field

The utility model relates to an besides-star gear processing technology field specifically is an anchor clamps for besides-star gear and use its turning lathe.

Background

The outer star wheel is a cup-shaped rotator part with a connecting shaft, the inner wall of the outer star wheel is distributed with a plurality of ball paths, and the ball paths are used for transmitting torque with another part through steel balls. Because the outer star wheel is a rotating body, the outer circle of the outer star wheel is generally machined by turning.

The outer star wheel can utilize outer star wheel anchor clamps to carry out the clamping before the outer star wheel turning process by the lathe usually and fix, and outer star wheel anchor clamps include main clamping part and vice clamping part usually, and main clamping part is fixed to the lane portion of outer star wheel, and vice clamping part is fixed to the pivot terminal surface of the outer star wheel other end to carry out subsequent turning work.

The structure of the main clamping part of current turning lathe besides-star wheel anchor clamps is too simple, and main clamping part comprises location cylinder and arc piece usually to the drive shaft of location cylinder and lathe is direct to link to each other, and such connection structure is firm inadequately, and the staff of not being convenient for simultaneously installs and dismantles the location cylinder fast, can not satisfy the processing needs of besides-star wheel gradually, and therefore we make the improvement to this, provide an anchor clamps for the besides-star wheel and use its turning lathe.

SUMMERY OF THE UTILITY MODEL

For solving the defect that prior art exists, the utility model provides an besides-star gear is with anchor clamps and use its turning lathe.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a clamp for an besides-star wheel, which comprises a main clamping part and an auxiliary clamping part matched with the main clamping part for clamping and fixing the besides-star wheel, wherein the main clamping part is connected with a driving shaft of a machine tool, and the auxiliary clamping part is arranged on a tailstock of the machine tool;

the main clamping part comprises a positioning cylinder, a connecting block and an arc-shaped block, the positioning cylinder is coaxially arranged on one side of the driving shaft, the connecting block is arranged between the driving shaft and the positioning cylinder and used for connecting the driving shaft and the positioning cylinder, and the arc-shaped block is arranged on the outer peripheral side of the positioning cylinder and used for being matched with the besides-star wheel lane;

the auxiliary clamping part comprises a supporting block, a telescopic ejection column and an apex, the supporting block is fixed on the tailstock of the machine tool, the telescopic ejection column is connected to one end, far away from the tailstock of the machine tool, of the supporting block, the apex is arranged at one end, far away from the supporting block, of the telescopic ejection column, and the apex is used for being abutted to the connecting shaft of the outer star wheel to fix the outer star wheel.

Preferably, the positioning cylinder is connected with the connecting block through a locking device, and the locking device is used for improving the stability of fixing the positioning cylinder on the connecting block.

Preferably, the locking device comprises:

the fixing strip is horizontally arranged on one side, close to the positioning cylinder, of the connecting block;

the fixing groove is formed in the positioning cylinder and used for being matched with the fixing strip in a clamping mode to link the positioning cylinder and the connecting block.

Preferably, the locking device further comprises:

the bead groove is formed in the fixing strip;

the top bead part is accommodated in the bead groove, and the top area of the top bead protrudes out of the notch of the bead groove;

the reset spring is accommodated in the bead groove and connected with the top bead to elastically support the bead groove;

and the top bead matching groove is formed in the groove wall of the fixing groove and is used for being matched with the top bead to lock and fix the fixing strip inserted into the fixing groove.

Preferably, one end of the fixing strip, which is close to the fixing groove, is provided with a sawtooth-shaped fixture block, and a sawtooth-shaped clamping groove matched with the sawtooth-shaped fixture block is formed in the groove wall of the fixing groove.

Preferably, the positioning cylinder is provided with an ejection groove corresponding to the ejection bead matching groove, and the ejection groove is communicated with the ejection bead matching groove.

Preferably, a guide hole is formed in the middle of one side, close to the connecting block, of the positioning cylinder, and a guide column matched with the guide hole is arranged on the connecting block.

Preferably, the method further comprises the following steps:

the buffer groove is formed in the supporting block on the same side as the telescopic support pillar, and the end part of the telescopic support pillar extends into the buffer groove;

the buffer block is accommodated in the buffer slot and is connected with the end part of the telescopic support pillar arranged in the buffer slot;

and the buffer spring is accommodated in the buffer groove and connected with the buffer block to elastically support the buffer groove.

Preferably, two stoppers for preventing the buffer block from separating from the buffer slot are symmetrically arranged at the notch of the buffer slot.

A turning machine tool comprises the clamp for the outer star wheel.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. this kind of anchor clamps for besides-star gear and use its turning lathe through the connecting block that can dismantle that adds between drive shaft in the main clamping part and the location cylinder, makes things convenient for the staff to carry out quick replacement to the location cylinder that has corresponding quantity arc piece according to the quantity difference of besides-star gear lane, and the practicality is high and connect more firmly.

2. Through lock pearl, pearl groove, reset spring, top pearl cooperation groove and the ejecting groove in the locking device, improved the stability of fixed strip joint in the fixed slot, and then improved the stability of being connected between connecting block and the location cylinder, also make things convenient for the separation of staff between location cylinder and the connecting block simultaneously, improve work efficiency.

3. Through buffer slot, buffer spring and buffer block in the vice clamping part, avoid top to contact outer star gear connecting axle terminal surface center department and cause the damage of outer star gear connecting axle terminal surface in the twinkling of an eye.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an enlarged schematic view of the structure at a of the present invention;

fig. 3 is a schematic view of the sectional structure of the supporting block of the present invention.

In the figure: 1. a drive shaft; 2. positioning the cylinder; 3. connecting blocks; 4. a support block; 5. a telescopic top pillar; 6. a tip; 7. a guide hole; 8. a guide post; 9. an arc-shaped block; 10. a fixing strip; 11. fixing grooves; 12. a bead groove; 13. a return spring; 14. a top bead; 15. a sawtooth-shaped fixture block; 16. a sawtooth-shaped clamping groove; 17. a top bead fitting groove; 18. ejecting the groove; 19. a buffer tank; 20. a buffer block; 21. a buffer spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Example 1:

referring to fig. 1, a clamp for an outer star wheel and a turning machine tool using the same include a main clamping portion and an auxiliary clamping portion, wherein the auxiliary clamping portion is matched with the main clamping portion to clamp and fix the outer star wheel, the main clamping portion is connected with a driving shaft 1 of the machine tool, and the auxiliary clamping portion is arranged on a tailstock of the machine tool;

the main clamping part comprises a positioning cylinder 2, a connecting block 3 and arc blocks 9, the positioning cylinder 2 is coaxially arranged on one side of a driving shaft 1, the connecting block 3 is detachably arranged between the driving shaft 1 and the positioning cylinder 2 and is used for connecting the driving shaft 1 and the positioning cylinder 2, the arc blocks 9 are arranged on the outer peripheral side of the positioning cylinder 2 and are used for being matched with an outer star wheel ball path, the connecting block 3 is connected with the driving shaft 1 through bolts, the two bolts are symmetrically arranged on the positioning cylinder 2, threaded holes matched with the bolts are formed in the driving shaft 1, the connecting block 3 is convenient to install and detach quickly, the arc blocks 9 are multiple, the arc blocks 9 are evenly distributed along the circumferential direction of the positioning cylinder 2, and the positioning cylinders 4 with the arc blocks 9 in corresponding number can be selected according to the number of the outer star wheel ball paths for clamping;

vice clamping part includes supporting shoe 4, flexible fore-set 5 and top 6, and supporting shoe 4 is fixed on the lathe tailstock, and flexible fore-set 5 is connected in the one end that the lathe tailstock was kept away from to supporting shoe 4, and top 6 sets up in the one end that supporting shoe 4 was kept away from to flexible fore-set 5 for with the external star wheel connecting axle butt in order to fix it.

The working process is as follows: when a worker needs to turn the outer star wheel, the worker selects the positioning cylinders 2 with the corresponding number of arc-shaped blocks 9 according to the number of the ball paths of the outer star wheel to be machined, then the outer star wheel is arranged on a machine tool, the arc-shaped blocks 9 on the positioning cylinders 2 are embedded into the ball paths of the outer star wheel to clamp and fix the ball path ends of the outer star wheel, the telescopic ejection posts 5 extend out to drive the tips 6 to move towards the positioning cylinders 2, and the tips 6 are ejected to the center of the end face of the outer star wheel connecting shaft, so that the outer star wheel can be positioned better, meanwhile, a support piece can be added to support the middle rotating shaft of the outer star wheel, the outer star wheel can be positioned accurately in the turning process without vibration, the machining precision and the product quality of the outer star wheel are effectively improved, and then the outer star wheel clamped between the main clamping part and the auxiliary clamping part is driven to rotate through the driving shaft 1 of the machine tool, so as to carry out the subsequent turning procedure.

Example 2:

the embodiment is a preferable scheme of embodiment 1, please refer to fig. 1-2, the positioning cylinder 2 is connected with the connecting block 3 through a locking device, so as to improve the stability of fixing the positioning cylinder 2 on the connecting block 3;

further, the locking device includes:

the fixing strips 10 are horizontally arranged on one side, close to the positioning cylinder 2, of the connecting block 3, the number of the fixing strips 10 is two, the fixing strips are symmetrically distributed on the connecting block 3, and meanwhile, the fixing strips 10 and the connecting block 3 can be connected through threaded connecting pieces or welded, and the utility model discloses do not limit;

fixed slot 11, fixed slot 11 are seted up on location cylinder 2 for link up with location cylinder 2 and connecting block 3 with the cooperation of fixed strip 10 joint, the quantity of fixed slot 11 and the quantity of fixed strip 10 keep unanimous and both positions of position to correspond.

The working process is as follows: when needs assemble main clamping part, the staff selects the location cylinder 2 of the corresponding arc piece 9 according to the lane quantity of the outer star wheel that needs processing earlier, earlier need be connected connecting block 3 and drive shaft 1 through the bolt, then insert the fixed strip 10 on the connecting block 3 in the fixed slot 11 of location cylinder 2, can accomplish the equipment of main clamping part, when needs are dismantled main clamping part, only need take fixed strip 10 on the connecting block 3 out from fixed slot 11 of location cylinder 2, and twist off the bolt between connecting block 3 and the drive shaft 1 can.

Example 3:

this embodiment is a preferable scheme of embodiment 2, please refer to fig. 1-2, the locking device further includes:

the bead grooves 12 are formed in the fixing strip 10, the number of the bead grooves 12 is a plurality, and the bead grooves 12 are evenly distributed along the horizontal direction of the fixing strip 10;

the top bead 14, the top bead 14 is partially accommodated in the bead slot 12, and the top area of the top bead 14 protrudes from the notch of the bead slot 12, the horizontal height of the center of the top bead 14 is higher than the notch of the bead slot 12;

the reset spring 13 is accommodated in the bead groove 12 and connected with the top bead 14 to elastically support the bead groove, the top end of the reset spring 13 is fixedly connected with the bottom end of the top bead 14, the bottom end of the reset spring 13 is fixedly connected with the bottom end of the groove wall of the bead groove 12, when the fixing strip 10 is not inserted into the fixing groove 11, the horizontal height of the bead center of the top bead 14 is higher than the notch of the bead groove 12, and the reset spring 13 is in a normal state at the moment, namely, the reset spring 13 is not deformed;

the top bead matching groove 17 is formed in the groove wall of the fixing groove 11, the top bead matching groove 17 is formed in the groove wall of the fixing groove 11 and used for being matched with the top bead 14 to lock and fix the fixing strip 10 inserted into the fixing groove 11, the whole section of the top bead matching groove 17 is of a hemispherical structure, and the top bead 14 is convenient to push into.

The working process is as follows: when the fixing strip 10 is inserted into the fixing groove 11, the groove wall of the fixing groove 11 can extrude the top bead 14, so that the top bead 14 is pressed into the bead groove 12 temporarily, and the return spring 13 is compressed and deformed, and along with the process that the fixing strip 10 is inserted into the fixing groove 11, when the top bead 14 moves to the top bead matching groove 17 in the fixing groove 11, the top bead 14 is pushed into the top bead matching groove 17 under the elastic action of the return spring 13, so as to fix the fixing strip 10 inserted into the fixing groove 11, when the fixing strip 10 is taken out from the fixing groove 11, because the surfaces of the top bead 14 and the top bead matching groove 17 are cambered surfaces, the top bead 14 is gradually pushed into the bead groove 12 along the groove wall of the top bead matching groove 17 under the outward acting force of the fixing strip 10, and the return spring 13 is compressed and deformed until the fixing strip 10 is separated from the fixing groove 11 integrally.

Example 4:

in this embodiment, referring to fig. 1 and 2, a sawtooth-shaped fixture block 15 is disposed at one end of the fixing strip 10 close to the fixing groove 11, a sawtooth-shaped fixture groove 16 matched with the sawtooth-shaped fixture block 15 is disposed on a groove wall of the fixing groove 11, and a joint between the sawtooth-shaped fixture block 15 and the sawtooth-shaped fixture groove 16 is sawtooth-shaped, and meanwhile, compared with a straight shape, the butt joint area is effectively increased, and the connection stability between the fixing strip 10 and the fixing groove 11 is improved.

Example 5:

in this embodiment, referring to fig. 2, an ejection groove 18 corresponding to the bead-ejecting mating groove 17 is formed on the positioning cylinder 2, the ejection groove 18 is communicated with the bead-ejecting mating groove 17, the ejection groove 18 and the bead-ejecting mating groove 17 are similar in shape, but the ejection groove 18 and the bead-ejecting mating groove 17 are arranged in opposite directions, and the maximum diameter of the communication portion between the ejection groove 18 and the bead-ejecting mating groove 17 is smaller than the diameter of the bead 14.

The working process is as follows: when the fixing strip 10 needs to be taken out of the fixing groove 11, at the moment, a worker only needs to insert a finger into the ejecting groove 18 and press the ejecting bead 14 downwards, so that the ejecting bead 14 is ejected into the ejecting bead matching groove 17 and compresses the return spring 13, then the fixing strip 10 is taken out of the fixing groove 11 more quickly, and the working efficiency is improved.

Example 6:

in this embodiment, as another preferable scheme of embodiment 1, please refer to fig. 1, a guide hole 7 is formed in a middle portion of one side of the positioning cylinder 2, which is close to the connecting block 3, a guide post 8 matched with the guide hole 7 is arranged on the connecting block 3, and cross sections of the guide post 8 and the guide hole 7 are both arrow-shaped structures, which is helpful for the guide post 8 to enter the guide hole 7.

The working process is as follows: when assembling the positioning cylinder 2 and the connecting block 3, the guide column 8 is firstly guided into the guide hole 7, and then subsequent assembling work is carried out, so that the accuracy of installation between the positioning cylinder 2 and the connecting block 3 is improved, and the working efficiency is improved.

Example 7:

this embodiment is another preferable scheme of embodiment 1, please refer to fig. 1 and fig. 3, further including: the 19 notch department symmetry of dashpot is provided with two dogs that are used for preventing buffer block 20 to break away from dashpot 19, and the distance between two dogs is less than the long limit length of buffer block 20, and the distance between two dogs is greater than the external diameter of flexible fore-set 5.

The working process is as follows: when using vice clamping part and the cooperation of main clamping part to carry out the clamping to the external star wheel, can let flexible fore-set 5 stretch out and drive top 6 and remove towards location cylinder 2, and with top 6 top in the terminal surface center department of external star wheel connecting axle, thereby can form the location to the external star wheel better, it is worth mentioning that, buffer spring 21 in the dashpot 19 can be to buffer block 20, flexible fore-set 5 and top 6 play the buffering effect, avoid top 6 to contact external star wheel connecting axle terminal surface center department to cause the damage of external star wheel connecting axle terminal surface in the twinkling of an eye.

Example 8:

this embodiment is the preferred scheme of embodiment 1 to 7, a turning lathe, includes as the outer star wheel of arbitrary one anchor clamps for, the turning lathe adopts this kind of outer star wheel anchor clamps, and it is fixed to carry out the clamping to the outer star wheel through on the lathe to drive under drive shaft 1 and take the outer star wheel to rotate, in order to carry out subsequent turning process can, work efficiency is high.

The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims (8)

1. The utility model provides an anchor clamps for besides-star gear, includes main clamping part and uses in order to carry out the vice clamping part that the clamping is fixed with main clamping part cooperation, main clamping part is connected with drive shaft (1) that the lathe has, vice clamping part sets up on the lathe tailstock, its characterized in that:

the main clamping part comprises a positioning cylinder (2), a connecting block (3) and an arc-shaped block (9), the positioning cylinder (2) is coaxially arranged on one side of the driving shaft (1), the connecting block (3) is detachably arranged between the driving shaft (1) and the positioning cylinder (2) and used for connecting the driving shaft (1) and the positioning cylinder (2), and the arc-shaped block (9) is arranged on the outer peripheral side of the positioning cylinder (2) and used for being matched with an outer star wheel ball path;

the auxiliary clamping part comprises a supporting block (4), a telescopic ejection column (5) and a tip (6), the supporting block (4) is fixed on the tailstock of the machine tool, the telescopic ejection column (5) is connected to one end, far away from the tailstock of the machine tool, of the supporting block (4), and the tip (6) is arranged at one end, far away from the supporting block (4), of the telescopic ejection column (5) and used for being abutted to the connecting shaft of the outer star wheel to fix the outer star wheel;

further comprising: the buffer groove (19) is formed in the supporting block (4) on the same side as the telescopic support pillar (5), and the end part of the telescopic support pillar (5) extends into the buffer groove (19);

the buffer block (20), the said buffer block (20) holds and locates in the dashpot (19) and connects with the end of the telescopic support pillar (5) placed in dashpot (19);

the buffer spring (21), the said buffer spring (21) holds and locates in the buffer slot (19) and connects the buffer block (20) to carry on the elastic support;

the notch of the buffer groove (19) is symmetrically provided with two stop blocks for preventing the buffer block (20) from separating from the buffer groove (19).

2. A spider gripper according to claim 1, wherein the positioning cylinders (2) are connected to the connecting block (3) by a locking device for improving the stability of the positioning cylinders (2) in the fixing of the connecting block (3).

3. The spider gripper of claim 2, wherein the locking device comprises:

the fixing strip (10) is horizontally arranged on one side, close to the positioning cylinder (2), of the connecting block (3);

fixed slot (11), fixed slot (11) are seted up in on location cylinder (2) for with fixed strip (10) joint cooperation in order to link up location cylinder (2) and connecting block (3).

4. The spider gripper of claim 3, wherein the locking device further comprises:

the bead groove (12), the bead groove (12) is opened on the fixed strip (10);

the top bead (14), the part of the said top bead (14) is held in the bead trough (12), and the top area of the said top bead (14) is outstanding in the notch of the bead trough (12);

the return spring (13) is accommodated in the bead groove (12) and connected with the top bead (14) to elastically support the bead groove (12);

the top bead matching groove (17) is formed in the groove wall of the fixing groove (11) and used for being matched with the top bead (14) to lock and fix the fixing strip (10) inserted into the fixing groove (11).

5. The clamp for the besides-star wheel as claimed in claim 3, wherein a sawtooth-shaped fixture block (15) is arranged at one end of the fixing strip (10) close to the fixing groove (11), and a sawtooth-shaped fixture groove (16) matched with the sawtooth-shaped fixture block (15) is formed in the groove wall of the fixing groove (11).

6. The clamp for the besides-star wheel according to claim 4, wherein the positioning cylinder (2) is provided with an ejection groove (18) corresponding to the ejection bead matching groove (17), and the ejection groove (18) is communicated with the ejection bead matching groove (17).

7. The clamp for the besides-star wheel according to any one of claims 1 to 6, wherein a guide hole (7) is formed in the middle of one side of the positioning cylinder (2) close to the connecting block (3), and a guide column (8) matched with the guide hole (7) is arranged on the connecting block (3).

8. A turning machine comprising the jig for an outer star wheel according to any one of claims 1 to 6.

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