CN206780013U - Feeding and feeding mechanism of an external card type pipe cutting machine - Google Patents

Abstract

The utility model relates to the technical field of pipe cutting machine feeding, in particular to an outer clamping type pipe cutting machine feeding mechanism, a rotatable rotary drum is arranged in a fixed sleeve, a first driving mechanism for driving the rotary drum to rotate is arranged on a frame, a rotary disc is fixed at the front end of the rotary drum, at least three claw devices which are uniformly distributed in an annular shape are arranged on the rotary disc, a second driving mechanism for driving a tensioning gear to rotate is arranged on the rotary drum, a long-strip workpiece can pass through the tail part of the fixed sleeve to be clamped on a three-claw chuck in the processing process, a feeding motor can drive the feeding gear to realize higher-precision feeding through meshing transmission with a rack, a crown gear is driven by the second motor to realize simultaneous centering and clamping of a radial moving claw through meshing transmission with the tensioning gear on the claw devices, the centering property of the clamped workpiece is enhanced, and the radial moving claw is provided, the production efficiency and the production quality are improved, and the practicability is high.

Description

Feeding and feeding mechanism of an external card type pipe cutting machine

technical field

The utility model relates to the technical field of pipe cutting machine feeding, in particular to an external card type pipe cutting machine feeding and feeding mechanism.

Background technique

In the process of mechanical manufacturing, it is used to fix the processing object so that it occupies the correct position to accept the construction or inspection device. When the workpiece is processed on the machine tool, in order to make the surface of the workpiece reach the size, geometric shape and other surfaces specified in the drawing The mutual position accuracy and other technical requirements, the workpiece must be positioned, clamped and clamped before processing. The fixture is usually composed of a positioning element to determine the correct position of the workpiece in the fixture, and a clamping device. At present, the external card type in domestic factories The chucks of the pipe cutting machine are common traditional clamping equipment in the market. The clamping is inconvenient. It can only be installed round and not square. It cannot realize centering clamping and high-precision transmission of moving workpieces. Regular workpieces lead to increased processing difficulty, greatly increasing the workload of workers and increasing manufacturing costs.

Contents of the invention

The technical problem to be solved by the utility model is to provide a feeding mechanism of the outer card type pipe cutting machine with higher precision transmission and strong alignment.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions: a feeding and feeding mechanism of an external card type pipe cutting machine, a feeding and feeding mechanism of an external card type pipe cutting machine, including a frame, a double frame fixed to the frame The slide rails, the tailstock clamping device movable on the double slide rails and the feed drive mechanism for driving the tailstock clamping device to move forward and backward, the front end of the frame is fixedly provided with a fixed sleeve, which is characterized in that: A rotatable drum is installed inside the fixed sleeve, a first drive mechanism for driving the drum to rotate is installed on the frame, and a turntable is fixed at the front end of the drum, and the turntable is equipped with at least Three claw devices, the claw device includes a mounting plate fixed on the turntable, a radially moving claw movably installed on the mounting plate, a lead screw connected with the radially moving claw and a tensioning gear fixed on the outer end of the lead screw, The drum is equipped with a second driving mechanism for driving the tensioning gear to rotate.

Preferably, the first driving mechanism includes a sprocket fixed to the rear end of the drum and a first motor for driving the sprocket to rotate.

Preferably, the second drive mechanism includes a crown gear fixed at the front end of the drum and a second motor for driving the crown gear to rotate, and the tension gear is meshed with the crown gear in transmission connection.

Preferably, the number of the claw devices is four, the two claw devices facing each other are on the same vertical plane, and the two adjacent claw devices are staggered forward and backward.

Preferably, a rotatable rolling sleeve is installed at the inner end of the radially movable claw.

Preferably, the tailstock clamping device includes a slider mated with double slide rails, a tailstock mounting plate fixed on the slider, and a three-jaw chuck mounted on the tailstock mounting plate, and the mounting plate is equipped with a drive The third motor that the three-jaw chuck rotates synchronously with the drum.

Preferably, the rack is equipped with a rack parallel to the double slide rails, and the tailstock mounting plate is equipped with a feed gear and a feed motor for driving the feed gear to rotate. Rack mesh connection.

The beneficial effect of the utility model is that: the utility model provides a feeding mechanism of an external card type pipe cutting machine. The motor will drive the feed gear to mesh with the rack to achieve high-precision feeding, and the second motor will drive the crown to mesh with the tensioning gear on the claw device to achieve radial movement of the claws and clamp them in the center at the same time, enhancing the clamping of the workpiece The centering, because the radial moving claw is equipped with a rolling sleeve, the workpiece can also move forward and backward during the processing process, and it is also convenient to follow the rotation of the drum, so that it can be clamped and processed with a rectangular or triangular cross-section. Improve production efficiency and production quality, strong practicability.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the present utility model.

FIG. 2 is a schematic diagram of a partially enlarged structure of part A in FIG. 1 .

Fig. 3 is a schematic diagram of the three-dimensional structure of the fixing sleeve of the present invention.

Fig. 4 is a perspective structural schematic diagram of another perspective of the fixing sleeve of the present invention.

Fig. 5 is a schematic diagram of the three-dimensional structure of the claw device of the present invention.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the examples, and the content mentioned in the embodiment is not a limitation of the utility model.

As shown in Figures 1 to 5, a feeding and feeding mechanism of an external card type pipe cutting machine includes a frame 6, a double slide rail 61 fixed on the frame 6, a tailstock device movable on the double slide rail 61 The clamping device 7 and the feed drive mechanism 8 for driving the tailstock clamping device 7 to move back and forth, the front end of the frame 6 is fixedly provided with a fixed sleeve 1, and it is characterized in that: the fixed sleeve 1 is equipped with The rotatable drum 2, the frame 6 is equipped with a first drive mechanism 3 for driving the drum 2 to rotate, the front end of the drum 2 is fixed with a turntable 21, and the turntable 21 is equipped with at least three uniformly arranged rings. A claw device 4, the claw device 4 includes a mounting plate 41 fixed on the turntable 21, a radially movable claw 42 movably installed on the mounting plate 41, a lead screw 43 connected with the radially movable claw 42 and a screw 43 fixed on the wire The tension gear 44 at the outer end of the bar 43, the drum 2 is equipped with a second drive mechanism 5 for driving the tension gear 44 to rotate.

In the feeding and feeding mechanism of the external card type pipe cutting machine in this embodiment, the long workpiece will pass through the tail of the fixed sleeve 1 and be clamped on the three-jaw chuck during the processing process, and the feeding motor will drive the feeding gear and the rack 62 The meshing transmission realizes high-precision feeding, and the second motor drives the crown gear and the tensioning gear 44 on the claw device 4 to mesh and drive to realize the radial movement of the claws 42 at the same time, and to enhance the centering of the clamped workpiece. The radial moving claw 42 is equipped with a rolling sleeve 45, and the workpiece can also move forward and backward during the processing, which is also convenient to follow the rotation of the drum 2, so that it can be clamped and processed with a triangular or rectangular cross-section, and the production efficiency can be improved. And production quality, wider applicability.

In this embodiment, the first driving mechanism 3 includes a sprocket 31 fixed on the rear end of the drum 2 and a first motor for driving the sprocket 31 to rotate. The sound of transmission through the chain is small and the transmission accuracy is high, completely eliminating The occurrence of slipping phenomenon, high reliability.

In this embodiment, the second drive mechanism 5 includes a crown gear 51 fixed at the front end of the drum 2 and a second motor for driving the crown gear 51 to rotate, and the tension gear 44 is meshed with the crown gear 51 for transmission connection , to achieve simultaneous transmission so that the jaws are centered and clamped at the same time, the neutrality and clamping degree are enhanced, and the practicability is strong.

In this embodiment, simultaneous transmission is realized so that the jaws are centered and clamped at the same time, the neutrality and clamping degree are enhanced, and the practicability is strong. The staggered clamping is realized through a simple mechanical structure, and the installation of the four jaw devices 4 is convenient. Under this condition, the installation and clamping function of workpieces with smaller pipe diameters is realized, which is highly practical.

In this embodiment, the inner end of the radially moving claw 42 is equipped with a rotatable rolling sleeve 45. Due to the design of the rolling sleeve 45, under the premise that the workpiece is clamped by the claw device 4, the workpiece can still be secured. Moving back and forth, the degree of freedom of the processing parts is higher, and the pipe cutting process with more complex structures can be realized, and the operability is better.

In this embodiment, the tailstock clamping device 7 includes a slider 71 mated with the double slide rails 61, a tailstock mounting plate 72 fixed to the slider 71, and a three-jaw clamp mounted on the tailstock mounting plate 72. The disc 73 and the mounting plate 41 are equipped with a third motor that drives the three-jaw chuck 73 to rotate synchronously with the drum 2. The tail clamping of the workpiece and the axial movement of the processed parts are realized by using the slide rail and the three-jaw chuck.

In this embodiment, the frame 6 is equipped with a rack 62 parallel to the double slide rails 61, and the tailstock mounting plate 72 is equipped with a feed gear and a feed motor for driving the feed gear to rotate. , the feed gear is meshed with the rack 62, and the rack and pinion 62 is used to connect to enhance the feeding accuracy and has strong practicability.

In the description of the present utility model, it should be noted that, for orientation words, if there are terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width", "Thickness", "Top", "Bottom", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner ", "outside", "clockwise", "counterclockwise" and other indication orientations and positional relationships are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying The devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, terms such as "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of technical features. Therefore, the definition of "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the utility model, "several" means two or more, unless There are other specific restrictions.

In this utility model, unless otherwise clearly specified and limited, if there are terms "assembled", "connected", and "connected", the terms should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integral connection; it can also be mechanical connection; it can be connected directly or through an intermediary, and it can be that two components are internally connected. Those of ordinary skill in the art can understand the specific meanings of the above-mentioned terms in the present utility model according to specific situations.

The above-mentioned embodiments only express some implementations of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (7)

1. a kind of external clamping type pipe cutting machine feed mechanism, including frame（6）, be fixed on frame（6）Double sided slider bar（61）, activity It is installed in double sided slider bar（61）Tailstock clamping device（7）And for driving tailstock clamping device（7）Movable Feed servo system Mechanism（8）, the frame（6）Front end be fixedly installed fixes sleeve（1）, it is characterised in that：The fixes sleeve（1）It is built-in Provided with rotatable rotating cylinder（2）, the frame（6）It is equiped with for driving rotating cylinder（2）The first drive mechanism rotated（3）, turn Cylinder（2）Be fixedly arranged at the front end with rotating disk（21）, the rotating disk（21）It is equiped with least three jaw means that annular is evenly arranged（4）, The jaw means（4）Including being fixed on rotating disk（21）Installing plate（41）, be movably arranged on installing plate（41）Move radially pawl （42）And move radially pawl（42）The leading screw of connection（43）And it is fixed on leading screw（43）The Tension gear of outer end（44）, described turn Cylinder（2）It is equiped with for driving Tension gear（44）The second drive mechanism rotated（5）.

2. external clamping type pipe cutting machine feed mechanism according to claim 1, it is characterised in that：First drive mechanism （3）Including being fixed on rotating cylinder（2）The sprocket wheel of rear end（31）And for drive sprocket（31）The first motor rotated.

3. external clamping type pipe cutting machine feed mechanism according to claim 1, it is characterised in that：Second drive mechanism （5）Including being fixed on rotating cylinder（2）The ring gear of front end（51）And for driving ring gear（51）The second motor rotated, described Tight gear（44）With the ring gear（51）It is connected by meshing transmission.

4. external clamping type pipe cutting machine feed mechanism according to claim 1, it is characterised in that：The jaw means（4） Quantity be four, mutually opposing two jaw means（4）On same perpendicular, adjacent two jaw means（4） It is front and rear to stagger.

5. external clamping type pipe cutting machine feed mechanism according to claim 1, it is characterised in that：It is described to move radially pawl （42）The inner be equiped with rotary rolls set（45）.

6. external clamping type pipe cutting machine feed mechanism according to claim 1, it is characterised in that：The tailstock clamping device （7）Including with double sided slider bar（61）The sliding block of mating connection（71）, be fixed on sliding block（71）Tailstock installing plate（72）And it is installed in Tailstock installing plate（72）Scroll chuck（73）, installing plate（41）It is equiped with driving scroll chuck（73）With the rotating cylinder（2）Together Walk the 3rd motor rotated.

7. external clamping type pipe cutting machine feed mechanism according to claim 6, it is characterised in that：The frame（6）Installing Have and double sided slider bar（61）The rack be arrangeding in parallel（62）, the tailstock installing plate（72）Be equiped with feed gear wheel and for drive into To the feeding motor of pinion rotation, the feed gear wheel and rack（62）Engagement connection.