CN210648869U

CN210648869U - Prestressed clamping piece tapping device

Info

Publication number: CN210648869U
Application number: CN201921140225.1U
Authority: CN
Inventors: 武永星; 孙海艳
Original assignee: Liuzhou Shengao Technology Co ltd
Current assignee: Liuzhou Shengao Technology Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-06-02
Anticipated expiration: 2029-07-19

Abstract

The utility model provides a tooth device is attacked to prestressing force clamping piece belongs to the equipment field of attacking, including setting up the subassembly of attacking in treating the work piece top of processing, attack the subassembly of attacking and include the tapping machine, the output of tapping machine is connected with the tap of attacking through the chuck that floats in order to realize automatic alignment. The prestress clamping piece tapping device also comprises a feeding assembly, wherein the feeding assembly comprises a feeding pipe and a pushing telescopic cylinder used for pushing a workpiece conveyed by the feeding pipe to a position right below the tapping screw tap; the workpiece fixing assembly comprises a fixed die, a movable die matched with the fixed die and a hydraulic cylinder used for driving the movable die to move so as to fix the workpiece. The utility model discloses a tapping machine attacks tooth, and tapping machine's output is connected with through the chuck that floats and attacks the tooth screw tap, can automatic alignment center when attacking tooth, is difficult to appear flat tooth, the phenomenon of tooth or mashed tooth, improves and attacks tooth quality.

Description

Prestressed clamping piece tapping device

Technical Field

The utility model belongs to attack tooth equipment field, concretely relates to tooth device is attacked to prestressing force clamping piece.

Background

The prestress tensioning is that tension is added in advance in a component, so that the applied prestress tensioning component bears compressive stress, and further the applied prestress tensioning component generates certain deformation to deal with the load of the structure, and a steel strand, a jack, an anchor plate and a clamping piece are used for general tensioning.

The prestressed clamping piece generally needs to be processed with an internal thread through a tapping machine, and the prior art (CN207563861U) discloses an automatic tapping device for the prestressed clamping piece. However, in the prior art, the telescopic rod controls the cylinder to drive the tapping drill to tap the teeth downwards, and the phenomena of flat teeth, eccentric teeth or tooth decay are easy to occur during tapping, so that the tapping quality is poor.

SUMMERY OF THE UTILITY MODEL

Based on the above background problem, the utility model aims at providing a tooth device is attacked to prestressing force clamping piece adopts automatic tapping machine and unsteady chuck cooperation structure, can automatic alignment center when attacking tooth, has solved the phenomenon that prior art appears flat tooth, tooth or mashed tooth easily, improves and attacks the tooth quality.

In order to achieve the above purpose, the utility model provides a technical scheme is:

the utility model provides a prestressing force clamping piece tapping device, is including setting up the tooth subassembly of attacking above treating the processing work piece, attack the tooth subassembly and include the tapping machine, the output of tapping machine is connected with the tooth screw tap of attacking in order to realize automatic alignment through floating the chuck.

The prestress clamping piece tapping device further comprises a feeding assembly, the feeding assembly comprises a feeding pipe and a pushing telescopic cylinder, the pushing telescopic cylinder is used for pushing a workpiece conveyed by the feeding pipe to a position right below the tapping screw tap, and the feeding pipe and the pushing telescopic cylinder are both arranged on the workpiece machining table.

In one embodiment, the workpiece processing table is further provided with a conveying guide rail along the pushing direction of the pushing telescopic cylinder so as to enable the workpiece to be pushed linearly.

The prestress clamping piece tapping device further comprises a workpiece fixing assembly used for fixing a workpiece conveyed by the feeding assembly, wherein the workpiece fixing assembly comprises a fixed die arranged on the workpiece processing table, a movable die matched with the fixed die and a hydraulic cylinder used for driving the movable die to move to fix the workpiece.

In one embodiment, the workpiece fixture assembly further comprises a movable die carrier for guiding the movable die.

Preferably, the lower surface of the movable mould frame is upwards concavely provided with a groove for the movable mould to penetrate through.

In one embodiment, the whole movable die is in a trapezoidal block structure, a first notch is formed in the end face, far away from the hydraulic cylinder, of the movable die, the first notch penetrates through the upper surface and the lower surface of the movable die, and the cross section of the first notch is semicircular; the whole fixed die is of a rectangular block structure, a second opening matched with the first opening is formed in the end face, close to the movable die, of the fixed die, and the second opening and the first opening are matched to form a cavity used for containing and fixing a workpiece.

Preferably, a fixed die push rod for ejecting the processed workpiece is arranged on the fixed die in a penetrating manner along the moving direction of the fixed die.

In one embodiment, the stretching direction of the hydraulic cylinder is perpendicular to the pushing direction of the pushing stretching cylinder, and a hydraulic lock is arranged on a hydraulic loop of the hydraulic cylinder so as to enable the movable die to keep constant clamping force on the workpiece.

In one embodiment, a water storage tank for collecting cooling liquid is further arranged below the workpiece processing table, and the workpiece processing table is arranged above the water storage tank through a support frame.

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

1. the utility model discloses a tapping machine attacks tooth, and tapping machine's output is connected with through the chuck that floats and attacks the tooth screw tap, can automatic alignment center when attacking tooth, is difficult to appear flat tooth, the phenomenon of tooth or mashed tooth, improves and attacks tooth quality.

2. The utility model discloses a pneumatic cylinder drives the movable mould and removes, and is equipped with the hydraulic pressure lock on the hydraulic circuit, can guarantee that the pneumatic cylinder maintains its position motionless, like this when the movable mould presss from both sides tightly the work piece with the cover half cooperation, can keep invariable clamp force to the work piece, the condition that the work piece was beaten and is changeed or damage the work piece can not appear attacking the tooth in-process.

3. The utility model discloses a movable mould direct driven die carrier wire-electrode cutting gets off, and the guidance quality is good, is difficult for appearing pressing from both sides inclined to one side phenomenon.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic structural view of a clamping piece tapping device in an embodiment of the present invention;

FIG. 2 is a top view of a workpiece holding assembly according to an embodiment of the present invention;

FIG. 3 is a front view of FIG. 2;

fig. 4 is a top view of the movable mold in the embodiment of the present invention;

3 FIG. 3 5 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3

FIG. 6 is a front view of FIG. 4;

fig. 7 is a front view of the movable mold frame in the embodiment of the present invention;

fig. 8 is a top view of the movable die carrier in the embodiment of the present invention;

fig. 9 is a bottom view of the movable mold frame in the embodiment of the present invention;

FIG. 10 is a top view of the stationary mold in an embodiment of the present invention;

FIG. 11 is a front view of the stationary mold according to the embodiment of the present invention;

FIG. 12 is a bottom view of the stationary mold according to the embodiment of the present invention;

fig. 13 is a schematic structural view of the fixed mold push rod in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to solve prior art and drive through telescopic link control cylinder and attack the tooth drill and down attack the tooth and appear flat tooth easily, tooth or rotten phenomenon such as tooth partially, this embodiment provides a prestressing force clamping piece tapping device, as shown in fig. 1, including the feeding subassembly, be used for carrying out the fixed subassembly of work piece that fixes and set up the tooth subassembly of attacking in treating the work piece top of processing the work piece that the feeding subassembly was sent to, the tooth subassembly of attacking includes tapping machine 1, tapping machine 1's output is connected with the tooth screw tap of attacking through floating chuck 100. The floating chuck 100 is connected with the tapping screw tap, so that the center can be automatically aligned during tapping, and the phenomena of flat teeth, eccentric teeth or tooth decay are avoided.

In this embodiment, as shown in fig. 1 to 3, the workpiece fixing assemblies are all mounted on a workpiece processing table 1-1, the workpiece processing table 1-1 is fixedly supported by a supporting frame, the supporting frame includes a mounting plate 1-2 and four columns 1-3 fixed on the mounting plate 1-2, the four columns 1-3 are distributed on the mounting plate 1-2 in a rectangular shape, a threaded hole is vertically formed in the top end of each column 1-3, the workpiece processing table 1-1 is connected to the column 1-3 by a fastener, and the fastener may be a bolt, a screw, or the like. The structure of the supporting frame is not limited to the specific structure given in the present embodiment.

In the present embodiment, as shown in fig. 2 and 3, the feeding assembly includes a feeding pipe 101 (the feeding pipe 101 is a cross-sectional view in fig. 2), and a push-telescoping cylinder 102 for pushing the workpiece conveyed by the feeding pipe 101 to a position right below the tapping tap, and the feeding pipe 101 and the push-telescoping cylinder 102 are both disposed on the workpiece processing station 1-1. Specifically, the feeding pipe 101 is obliquely arranged, the bottom of the feeding pipe 101 is fixed to the right side of the workpiece processing table 1-1, that is, fixed to the guide rail 103 before processing, the push telescopic cylinder 102 is fixed to the right side of the feeding pipe 101, and the discharge port of the feeding pipe 101 corresponds to the telescopic end of the push telescopic cylinder 102 to push the workpiece to move.

In order to ensure that the workpiece moves to the workpiece fixing component along a straight line under the pushing of the pushing telescopic cylinder 102, a conveying guide rail is arranged on the left side of the workpiece processing table 1-1 and is arranged along the pushing direction of the pushing telescopic cylinder 102. Specifically, as shown in fig. 2, the conveying guide rail is divided into a pre-processing guide rail 103 and a post-processing guide rail 104, the pre-processing guide rail 103 and the post-processing guide rail are respectively disposed on two sides of a fixed mold 2 and a movable mold 3 which are disposed oppositely, and the pre-processing guide rail 103 is disposed adjacent to a push telescopic cylinder 102, taking fig. 2 as an example, the pre-processing guide rail 103 is disposed on the right side of the fixed mold 2 and the movable mold 3 which are disposed oppositely, and the post-processing guide rail 104 is disposed on the left side of the fixed mold 2 and the movable mold 3 which are disposed oppositely, so that a workpiece to be processed can be guaranteed to move linearly to a joint of the fixed mold 2 and the movable mold 3 which are disposed oppositely under the push of the push telescopic cylinder.

In the present embodiment, as shown in fig. 2, the workpiece fixing assembly includes a fixed die 2 disposed on the workpiece processing table 1-1, a movable die 3 matched with the fixed die 2, and a hydraulic cylinder 4 for driving the movable die 3 to move to fix the workpiece. Specifically, the hydraulic cylinder 4 is fixed on the end face of the workpiece processing table 1-1 through a mounting flange 401, and the hydraulic cylinder 4 is perpendicular to the push telescopic cylinder 102, so that the moving direction of the movable die 3 is perpendicular to the moving direction of the workpiece, and the workpiece is fixedly clamped. When the movable die 3 is matched with the fixed die 2 to clamp a workpiece, in order to keep constant clamping force on the workpiece, a hydraulic lock is arranged on a hydraulic loop of the hydraulic cylinder 4, and the hydraulic cylinder 4 can be ensured to maintain the position of the hydraulic cylinder to be still.

In this embodiment, as shown in fig. 4 to 6, the whole movable die 3 is in a trapezoidal block structure, a first notch 301 is formed in an end surface of the movable die 3, which is away from the hydraulic cylinder 4, the first notch 301 penetrates through the upper and lower surfaces of the movable die 3, the cross section of the first notch 301 is semicircular, and the diameter of the first notch 301 is gradually increased from top to bottom; the end surface of the movable die, which is adjacent to the hydraulic cylinder 4, is provided with a threaded hole 302 for installing the hydraulic cylinder 4.

In order to guide the movable mold 3 and prevent deviation in the moving process, the workpiece fixing assembly further comprises a movable mold frame 5, as shown in fig. 7-9, the movable mold frame 5 is integrally rectangular, a groove 501 for the movable mold 3 to penetrate through is formed in the lower surface of the movable mold frame 5 in an upward concave mode, the groove 501 has the same shape and size as the movable mold 3, and in the specific machining process, the movable mold 3 can be cut out from the movable mold frame 5 by linear cutting, so that the matching degree of the movable mold 3 and the movable mold frame 5 is high, the guiding performance is good, and the phenomenon of deviation clamping is not easy to occur; the upper surface of the movable mould frame 5 is also provided with an observation hole 502, the observation hole 502 is vertically communicated with the groove 501, and the movement of the movable mould 3 in the movable mould frame 5 can be observed.

In this embodiment, as shown in fig. 10 to 12, the whole fixed die 2 is a rectangular block structure, a second notch 201 matched with the first notch 301 is formed in an end surface of the fixed die 2 adjacent to the movable die 3, the second notch 201 penetrates through the upper and lower surfaces of the fixed die 2, the cross section of the second notch 201 is semicircular, the diameter of the second notch 201 is gradually increased from top to bottom, and the second notch 201 and the first notch 301 cooperate to form a cavity for accommodating and fixing a workpiece.

In order to eject a processed workpiece from the second notch 201, a fixed die push rod 202 is further arranged on the fixed die 2 in a penetrating manner along the moving direction of the moving die 3, specifically, as shown in fig. 11, a through hole 203 is arranged at the central position on the fixed die 2 in the moving direction of the moving die 3, the through hole 203 is communicated with the second notch 201, the through hole 203 is a stepped hole 203, and an internal thread is arranged at one end of the through hole, which is far away from the second notch 201; the fixed die push rod 202 is arranged in the through hole 203 in a penetrating way, and the specific structure of the fixed die push rod is shown in fig. 13.

Because the tapping device needs to be cooled by spraying cooling liquid during tapping, as shown in fig. 1, in order to receive the sprayed cooling liquid, a water storage tank 6 is further arranged below the workpiece processing table 1-1, the workpiece processing table 1-1 is fixedly arranged above the water storage tank 6 through a support frame, and particularly, the mounting plate 1-2 is fixed in the water storage tank 6.

When the utility model is used, a workpiece to be processed is put in through the inlet pipe 101, the workpiece to be processed is sent out from the discharge port of the inlet pipe and falls into the telescopic end of the telescopic cylinder 102, the telescopic cylinder 102 is pushed to work at the moment to push the workpiece to be processed to move to the corresponding position of the first notch 301 and the second notch 201, at the moment, the hydraulic cylinder 4 starts to work to drive the movable mold 3 to move along the movable mold frame 5 until the first notch 301 on the movable mold 3 is matched with the second notch 201 on the fixed mold 2 to clamp the workpiece to be processed, the hydraulic cylinder 4 stops working, and the hydraulic cylinder 4 is locked to a moving position by the hydraulic lock; and then the tapping machine works to drive the tapping screw tap to move downwards for tapping, the tapping machine returns after tapping is finished, the hydraulic cylinder 4 contracts to drive the movable die 3 to return, and the machined workpiece is ejected out of the second notch 201 through the fixed die push rod 202, so that tapping is finished.

It should be noted that, in order to realize the automatic operation, the utility model further comprises a control system, the control system comprises a first sensor for sensing that the workpiece to be processed falls into the telescopic end of the push telescopic cylinder 102, a second sensor for sensing that the workpiece to be processed moves to the corresponding position of the first notch 301 and the second notch 201, and a third sensor for sensing the distance between the first notch 301 and the second notch 201, the first sensor is electrically connected with the controller to control the push telescopic cylinder 102 to operate when the workpiece to be processed falls into the telescopic end of the push telescopic cylinder 102, the second sensor is electrically connected with the controller to control the hydraulic cylinder 4 to operate when the workpiece to be processed moves to the corresponding position of the first notch 301 and the second notch 201, the third sensor is electrically connected with the controller to control the hydraulic cylinder 4 to stop operating when the movable mold 3 moves to the distance between the first notch 301 and the second notch 201 on the fixed mold 2 within a set range, the first sensor, the second sensor may be a photoelectric sensor or an infrared sensor, and the third sensor may be a displacement sensor. Above-mentioned control system is the conventional control method in this field, consequently the utility model discloses do not do detailed description to its specific circuit schematic diagram, just the utility model discloses a protection point lies in mechanical structure, consequently does not do the restriction to control mode.

It should be noted that, for those skilled in the art, without departing from the inventive concept, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The utility model provides a prestressing force clamping piece tapping device, is including setting up the tooth subassembly of attacking above treating the processing work piece, its characterized in that, the tooth subassembly of attacking includes the tapping machine, the output of tapping machine is connected with the screw tap of attacking through the chuck that floats in order to realize automatic alignment.

2. The prestressed clamping piece tapping device according to claim 1, wherein the prestressed clamping piece automatic tapping device further comprises a feeding assembly, the feeding assembly comprises a feeding pipe and a pushing telescopic cylinder, the pushing telescopic cylinder is used for pushing a workpiece conveyed from the feeding pipe to a position right below the tapping screw tap, and the feeding pipe and the pushing telescopic cylinder are both arranged on the workpiece processing table.

3. The prestressed jaw tapping device as claimed in claim 2, wherein a conveying rail is further provided on the workpiece processing table in a pushing direction of the pushing cylinder to linearly advance the workpiece.

4. The prestressed clamping piece tapping device as claimed in claim 2, wherein the prestressed clamping piece automatic tapping device further comprises a workpiece fixing assembly for fixing the workpiece conveyed by the feeding assembly, and the workpiece fixing assembly comprises a fixed die arranged on the workpiece processing table, a movable die matched with the fixed die, and a hydraulic cylinder for driving the movable die to move so as to fix the workpiece.

5. The prestressed jaw tapping device as recited in claim 4, wherein said workpiece holding assembly further comprises a movable die holder for guiding said movable die.

6. The prestressed jaw tapping device as claimed in claim 5, wherein a groove for the movable die to penetrate through is formed in the lower surface of the movable die frame in an upward concave manner.

7. The prestressed clamping piece tapping device according to claim 4, wherein the movable die is integrally in a trapezoidal block structure, a first notch is formed in the end surface, away from the hydraulic cylinder, of the movable die, the first notch penetrates through the upper surface and the lower surface of the movable die, and the cross section of the first notch is semicircular;

the whole fixed die is of a rectangular block structure, a second opening matched with the first opening is formed in the end face, close to the movable die, of the fixed die, and the second opening and the first opening are matched to form a cavity used for containing and fixing a workpiece.

8. The prestressed jaw tapping device as claimed in claim 7, wherein a fixed die push rod for ejecting a processed workpiece is further provided on the fixed die in a moving direction of the fixed die.

9. The prestressed jaw tapping device as claimed in claim 4, wherein the hydraulic cylinder is provided with a telescopic direction perpendicular to the pushing direction of the pushing telescopic cylinder, and a hydraulic lock is provided on a hydraulic circuit of the hydraulic cylinder to maintain a constant clamping force of the movable die on the workpiece.

10. The prestressed jaw tapping device as claimed in claim 2, wherein a water storage tank for collecting coolant is further provided below the workpiece processing table, and the workpiece processing table is disposed above the inside of the water storage tank through a support frame.