Full-automatic material bar cylindrical turning machine

Abstract

The utility model relates to a full-automatic material bar cylindrical turning machine which comprises a cylindrical turning tool. The feeding device comprises a clamping jaw, the clamping jaw can be driven by a feeding driving mechanism to do reciprocating motion between a material receiving position used for receiving the material bars and a feeding position adjacent to the inserting columns, and the material bars located at the feeding position and the inserting columns extend on the same straight line; the material pushing device comprises a material pushing driving mechanism and a material pushing plate capable of being driven by the material pushing driving mechanism to move in a reciprocating mode in the longitudinal direction, and in the process that the material pushing plate is driven by the material pushing driving mechanism to be close to the chuck, the material pushing plate can act on the material bar located at the feeding position and enables the material bar to be installed on the inserting column; in the process that the material pushing plate is driven by the material pushing driving mechanism to be away from the chuck, the material pushing plate can act on the material bar and enable the material bar to be separated from the inserting column, and the longitudinal direction is parallel to the axial direction of the inserting column. The device has the advantages that the labor intensity of workers can be effectively reduced, and the bar machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, and in particular to a fully automatic bar turning machine. Background Technology

[0002] The automotive suspension is equipped with shock absorbers connected in parallel with the elastic elements. When the vehicle frame and axle vibrate and relative motion occurs, the piston inside the shock absorber can move up and down. Due to the frequent relative motion between the piston and the shock absorber cylinder, the surface of the piston needs to be coated with a wear-resistant material with low frictional resistance, such as polytetrafluoroethylene (PTFE), to extend its service life. The coating outside the piston body is a relatively thin film, which is formed on the piston body using an overmolding process. For example, Chinese invention patent application CN201810796605.4 discloses a piston overmolding sheet thermoforming device.

[0003] The main operation of existing film cutting machines involves using a cutter to cut a rotating rod (i.e., an axially hollow film roll) into sheets. The rod is held in a chuck and rotated under its drive. However, during actual processing, the rod may suffer from surface defects due to bumps and wear during transport, or it may require turning the outer diameter of the rod to eliminate these defects or meet the required outer diameter dimensions. The existing rod turning process is basically done manually by picking up the rod, inserting it into the insert on the chuck, and then manually removing it and placing it into a rod collection box after the turning operation is complete. This method of turning the outer diameter of the rod involves relatively high manual labor intensity and relatively low processing efficiency.

[0004] Therefore, the existing bar milling machine needs further improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fully automatic bar turning machine that can effectively reduce the intensity of manual labor and improve the processing efficiency of bar processing, based on the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a fully automatic bar turning machine, comprising:

[0007] A clamping base includes a base body and a chuck that is rotated by a rotary drive mechanism. The chuck is disposed on the base body and has a horizontally extending insert.

[0008] An external turning tool that can move in a direction parallel to the axis of the bar to cut and shape the outer circle of the bar;

[0009] The feeding device includes a feeding drive mechanism and a gripper for gripping a bar. The gripper is driven by the feeding drive mechanism to reciprocate between a receiving position for receiving the bar and a feeding position adjacent to the insertion post. The bar in the feeding position extends in the same straight line as the insertion post.

[0010] A feeding device includes a feeding drive mechanism and a feeding plate that can be driven by the feeding drive mechanism to reciprocate longitudinally. When the feeding plate is driven by the feeding drive mechanism to approach the chuck, the feeding plate can act on the material bar in the feeding position and install the material bar on the insert post. When the feeding plate is driven by the feeding drive mechanism to move away from the chuck, the feeding plate can act on the material bar and disengage the material bar from the insert post. The aforementioned longitudinal direction is parallel to the axis of the insert post.

[0011] The feeding and unloading actions of the pusher plate described above can be achieved by a conventional robot. However, in order to simplify the feeding and unloading process and reduce costs, when the pusher plate is driven by the pusher drive mechanism to approach the chuck, the pusher plate acts on the end of the material bar away from the chuck. When the pusher plate moves away from the chuck under the pusher drive mechanism, the pusher plate acts on the end of the material bar close to the chuck.

[0012] To avoid interference between the pusher plate and the insert post, and to facilitate the pusher plate acting on the end of the bar near the clamp, the pusher plate has a clearance notch for the insert post to pass through.

[0013] To facilitate the gripper's gripping of the material bar, a material rack for placing the material bar is also included. The side of the material rack has an outlet for the material bar to be moved out of the material rack. The material rack is also provided with a material bar ejection mechanism for pushing the material bar out of the outlet. The gripper in the receiving position is adjacent to the outlet of the material rack and receives the material bar pushed out from the outlet.

[0014] As an improvement, the material rack is elongated and inclined. The discharge port is located on the side wall of the lower end of the rack, and the material bar ejection mechanism is also correspondingly located at the lower end of the rack. This structural design allows material bars to be placed sequentially on the rack. After one material bar is ejected from the rack by the ejection mechanism, subsequent material bars can roll downwards under their own weight to fill the gap.

[0015] As an improvement, the bar ejection mechanism includes a pushing cylinder and a pushing component that is driven by the pushing cylinder and can move in a direction parallel to the axis of the bar. It is conceivable that the bar ejection mechanism can be replaced by a linear drive mechanism such as a pneumatic push rod or an electric push rod.

[0016] To simplify the structure of the feeding drive mechanism, the receiving position is located above the loading position. The feeding drive mechanism includes a lifting cylinder, and the gripper is connected to the power output end of the lifting cylinder, allowing it to move upward or downward under the drive of the lifting cylinder. This structural design of the feeding drive mechanism allows the gripper to reciprocate only in the vertical direction, effectively simplifying the process of the feeding drive mechanism driving the gripper. Of course, it is conceivable that the movement of the gripper between the receiving and loading positions could also be achieved by a conventional multi-axis robot.

[0017] To facilitate the longitudinal movement of the external turning tool and the pusher plate, and to allow the external turning tool and the pusher device to switch positions laterally (to a position opposite to the insert held in the chuck), a slide device is also included. This slide device includes a base, a first slide that can be driven by a first drive mechanism to slide longitudinally back and forth on the base, and a second slide that can be driven by a second drive mechanism to slide laterally back and forth on the first slide. The external turning tool and the pusher plate are both located on the second slide and are arranged in the lateral direction, which is perpendicular to the axis of the material bar. The external turning tool and the pusher device located on the second slide move longitudinally with the first slide under the drive of the first drive mechanism. That is, the first drive mechanism constitutes the pusher drive mechanism of the pusher device.

[0018] To achieve automatic collection of the bar after turning, a bar conveyor belt is also included, which is located on the second slide and is used to feed the bar to the bar collection area. The inlet end of the bar conveyor belt is arranged adjacent to the pusher plate and is used to receive the bar pushed down from the insert by the pusher plate.

[0019] In order to promptly blow away the waste chips generated during the turning process, an air blowing pipe connected to an external air source is also included. The air outlet of the air blowing pipe is located near the chuck, and the air outlet direction is towards the bar held on the chuck.

[0020] Compared with the prior art, the advantages of this utility model are as follows: the gripper of the feeding device, driven by the feeding drive mechanism, can move to the receiving position to receive the bar to be processed and move the bar to the loading position. The bar in the loading position extends in the same straight line as the insertion post on the chuck. Then, the pusher plate is driven by the pusher drive mechanism to approach the chuck longitudinally and act on the bar in the loading position to install the bar on the insertion post. After the bar is turned, the pusher plate can be driven by the pusher drive mechanism to move away from the chuck, thereby detaching the bar from the insertion post. This method of turning the outer diameter of the bar can automate the feeding, loading, and unloading processes of the bar after turning, greatly reducing the intensity of manual labor and improving the efficiency of bar turning. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the fully automatic bar rolling machine according to an embodiment of the present utility model, with the pusher plate in the feeding state;

[0022] Figure 2 This is a three-dimensional structural diagram of the fully automatic bar turning machine according to an embodiment of the present utility model, with the grippers in the feeding state;

[0023] Figure 3 This is a three-dimensional structural diagram of the fully automatic bar turning machine according to an embodiment of the present utility model. The external turning tool is in the cutting state, and the air blowing pipe is hidden.

[0024] Figure 4 This is a three-dimensional structural diagram of the fully automatic bar rolling machine according to an embodiment of the present utility model. The pusher plate is in the retraction state, and the air blowing pipe is hidden.

[0025] Figure 5 This is a top view of the fully automatic bar milling machine according to an embodiment of the present invention, with the feeding device omitted. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0028] Figures 1-5 This illustration shows a preferred embodiment of the fully automatic bar turning machine of the present invention. The fully automatic bar turning machine includes a clamping base, a feeding device, a pushing device, an external turning tool 20, a slide device, and a material rack assembly.

[0029] See Figure 1The clamping base includes a base body 11 and a chuck 12 disposed on the base body 11. A horizontally extending insert 13 is inserted into the chuck 12. The bar to be turned, a, is an axially hollow bar. The insert 13 can be inserted into the inner hole of the bar a to fix the bar a. The bar a fixed by the insert 13 is also horizontally extended. The chuck 12 can be a hydraulically driven chuck 12 or a pneumatically driven chuck 12, which are used to clamp the insert 13. The base body 11 is also provided with a rotary drive mechanism, which can use an electric motor, hydraulic motor, etc. as a drive source to drive the chuck 12, the insert 13 on the chuck 12, and the bar a to rotate.

[0030] The slide assembly is located on one side of the clamping base, specifically on the side where the chuck 12 is located. The slide assembly includes a base 614, a first slide 62, and a second slide 63, arranged sequentially from bottom to top. The first slide 62 is slidably mounted on the base 61 longitudinally and can be driven by a first drive mechanism to reciprocate relative to the base 61. A linear guide rail assembly can be used to achieve relative sliding between the first slide 62 and the base 61. Similarly, the second slide 63 is slidably mounted on the first slide 62 laterally and can be driven by a second drive mechanism to reciprocate relative to the first slide 62. A linear guide rail assembly can be used to achieve relative sliding between the second slide 63 and the first slide 62. The first and second drive mechanisms can be one of a ball screw drive mechanism, a linear motor drive mechanism, a hydraulic drive mechanism, or a pneumatic drive mechanism.

[0031] The above-mentioned horizontal (e.g.) Figure 1 The X direction in the figure is perpendicular to the axis of bar a, and the aforementioned longitudinal direction (such as...) Figure 1 The Y direction in the figure is parallel to the axis of the bar a.

[0032] The second slide 63 is provided with a first fixed seat 21 and a second fixed seat 42 arranged sequentially in the transverse direction. The first fixed seat 21 is provided with an external turning tool 20, and the second fixed seat 42 is provided with a pusher plate 41. When the first slide 62 moves longitudinally relative to the base 61, since the second slide 63 is located on the first slide 62, the second slide 63, the external turning tool 20 on the second slide 63, and the pusher plate 41 can also reciprocate relative to the first slide 62. That is, the power source for driving the external turning tool 20 to move longitudinally is provided by the first drive mechanism, and the power source for driving the pusher plate 41 to reciprocate longitudinally is also provided by the first drive mechanism. When the second slide 63 moves laterally relative to the first slide 62, the external turning tool 20 and the pusher plate 41 provided on the second slide 63 can switch positions so that the external turning tool 20 or the pusher plate 41 is opposite to the bar a in the longitudinal direction, thereby realizing the subsequent turning process of the external turning tool 20 or the loading and unloading process of the bar a.

[0033] The material rack assembly includes a material rack 50 and a material bar ejection mechanism. The material rack 50 is used to arrange and place material bars a. The material rack 50 is elongated and inclined, and the material bars a extend longitudinally along the material rack 50. A discharge port 51 is provided on the side wall of the lower end of the material rack 50 for the material bars a to be moved out of the material rack 50. Specifically, the material rack 50 also has a material bar ejection mechanism for ejecting the material bars a from the discharge port 51, and the material bar ejection mechanism is also correspondingly located at the lower end of the material rack 50. In some embodiments, the material bar ejection mechanism includes a pushing cylinder 52 and a pushing member 521 driven by the pushing cylinder 52 and movable in a direction parallel to the axis of the material bars a. The pushing member 521 can be a pushing rod adapted to the shape of the material bars a. When the pushing cylinder 52 is activated, the end of the pushing rod abuts against the material bars a, pushing the bottommost material bar a of the material rack 50 forward. Since the material rack 50 is set at an angle, after the previous material bar a is pushed out of the material rack 50 by the material bar pushing mechanism, the subsequent material bars a will roll down in sequence to fill the gap under their own gravity.

[0034] The feeding device includes a feeding drive mechanism 33 and a gripper 31 for clamping the material bar a. The gripper 31 can be driven by the feeding drive mechanism 33 to reciprocate between a receiving position for receiving the material bar a and a loading position adjacent to the insertion post 13. The receiving position is the position where the gripper 31 is located in front of the discharge port 51 of the material rack 50. Thus, when the material bar a is pushed forward out of the material rack 50 by the material bar pushing mechanism, the gripper 31 in the receiving position can just receive the material bar a pushed out from the discharge port 51. Of course, the gripper 31 is driven by the opening and closing cylinder 32 to perform clamping and opening actions. The loading position is located below the receiving position. The feeding drive mechanism 33 includes a lifting cylinder. The gripper 31 is connected to the power output end of the lifting cylinder, so that it can move up or down under the drive of the lifting cylinder. In this embodiment, the feeding drive mechanism 33 adopts a lifting cylinder structure design, which allows the gripper 31 to reciprocate only in the vertical direction, effectively simplifying the process of the feeding drive mechanism 33 driving the gripper 31. Of course, it is conceivable that the movement of the gripper 31 between the receiving position and the loading position can also be achieved by a conventional multi-axis robot. When the gripper 31 moves to the loading position, the material bar a held by the gripper 31 is located in front of the insertion rod, and the material bar a and the insertion post 13 extend in the same straight line.

[0035] After the material bar a is moved to the loading position by the gripper 31, the material bar a on the gripper 31 can be pushed backward by the pushing device and installed onto the insertion post 13 of the chuck 12. The pushing device includes a pushing drive mechanism and a pushing plate 41 that can be driven by the pushing drive mechanism to move reciprocally along the longitudinal direction. In this embodiment, the power source for the longitudinal reciprocating movement of the pushing plate 41 is realized by the first drive mechanism driving the first slide 62, that is, the first drive mechanism constitutes the pushing drive mechanism of the pushing device. When the pushing plate 41 is driven by the pushing drive mechanism to approach the chuck 12, the pushing plate 41 can act on the end of the material bar a away from the chuck 12, and move the material bar a backward to be installed onto the insertion post 13 of the chuck 12. When the pushing plate 41 is driven by the pushing drive mechanism to move away from the chuck 12, the pushing plate 41 can act on the end of the material bar a near the chuck 12, and move the material bar a forward to disengage from the insertion post 13. To avoid interference between the pusher plate 41 and the insert post 13, and to facilitate the pusher plate 41 acting on the end of the bar a near the chuck 12, the pusher plate 41 in this embodiment has a clearance notch 410 for the insert post 13 to pass through. Figure 4 As shown, the portion of the pusher plate 41 that acts on the end of the bar a is constructed as a U-shaped support structure.

[0036] The second slide 63 is also equipped with a bar conveyor belt 71, meaning the relative position of the bar conveyor belt 71 and the pusher plate 41 is fixed. In this embodiment, the bar conveyor belt 71 extends longitudinally. The inlet end of the bar conveyor belt 71 is arranged adjacent to the pusher plate 41 to receive the bar a pushed down from the insert post 13 by the pusher plate. The outlet end of the bar conveyor belt 71 is located in the bar collection area, which may be equipped with a collection frame (not shown in the figure) to receive the bar a falling from the outlet end of the bar conveyor belt 71. The left and right sides of the bar conveyor belt 71 are generally provided with upwardly extending baffles 72 to prevent the bar a from rolling off the bar conveyor belt 71 during the conveying process.

[0037] The turning machine for bar a in this embodiment also includes an air blowing pipe 80 connected to an external air source. The air outlet of the air blowing pipe 80 is located near the chuck 12, and the air outlet direction is towards the bar a held on the chuck 12. Specifically, two or more air blowing pipes 80 can be set according to actual needs, so as to realize timely and thorough blowing of waste chips generated during the turning process.

[0038] The working process of the fully automatic bar milling machine in this embodiment is as follows:

[0039] See Figures 2-5Driven by the lifting cylinder, the gripper 31 moves upward to the receiving position, which is located in front of the discharge port 51 of the material rack 50. Then, the pushing cylinder 52 actuates, pushing the bottom bar a of the material rack 50 forward through the pushing rod. The gripper 31, which is in the receiving position, can just receive the bar a pushed out from the discharge port 51. After the pushing rod retracts, the adjacent bar a on the material rack 50 rolls downward to automatically fill the gap. The lifting cylinder drives the gripper 31 (holding the bar a) downward to the loading position, which is located in front of the insertion rod of the chuck 12. The second drive mechanism of the slide device actuates, causing the second slide 63 to move laterally, moving the pusher plate 41 on the second slide 63 to the front of the material bar a. Then, the first drive mechanism actuates, causing the first slide 62 (with the second slide 63 and the pusher plate 41 on the second slide 63 moving together) to move longitudinally backward. During the backward movement, the pusher plate 41 acts on the end of the material bar a away from the chuck 12, causing the material bar a to move backward and be mounted on the insertion post 13 of the chuck 12. During or after the pusher plate 41 pushes the material backward, the gripper 31 is driven upward by a lifting cylinder to move to the upper position. Then, the second drive mechanism of the slide device is activated, driving the second slide 63 to move laterally, so that the external turning tool 20 on the second slide 63 moves to the front side of the bar a. Then, the first drive mechanism is activated, driving the first slide 62 (the second slide 63 on the first slide 62 and the external turning tool 20 on the second slide 63 also move together) to move longitudinally backward. During the backward movement, the turning of the outer circle of the bar a is realized. After the turning is completed, the second drive mechanism of the slide device is activated, driving the second slide 63 to move laterally, so that the pusher plate 41 on the second slide 63 moves to the rear side of the bar a. Then, the first drive mechanism is activated, driving the first slide 62 (the second slide 63 on the first slide 62 and the pusher plate 41 on the second slide 63 also move together) to move longitudinally forward. During the forward movement, the pusher plate 41 can act on the end of the bar a near the chuck 12, and make the bar a move forward and disengage from the insert 13. After the material bar a detaches from the insert post 13, it falls onto the material bar conveyor belt 71 below and is conveyed by the material bar conveyor belt 71 to the collection box in the material bar collection area.

Claims

1. A full-automatic bar stock lathe, comprising: a clamping seat, including a seat body (11) and a chuck (12) rotated by a rotating drive mechanism, the chuck (12) being arranged on the seat body (11), and a horizontally extending insertion column (13) being arranged on the chuck (12); an external turning tool (20) capable of moving in a direction parallel to the axis of the bar stock (a) to cut and shape the external circle of the bar stock (a); characterized in that it further comprises: a feeding device, including a feeding drive mechanism (33) and a clamping jaw (31) for clamping the bar stock (a), the clamping jaw (31) being capable of reciprocating between a receiving position for receiving the bar stock (a) and a feeding position adjacent to the insertion column (13) by the feeding drive mechanism (33), the bar stock (a) in the feeding position extending in line with the insertion column (13); a pushing device, including a pushing drive mechanism and a pushing plate (41) capable of reciprocating in a longitudinal direction by the pushing drive mechanism, the pushing plate (41) being capable of acting on the bar stock (a) in the feeding position and mounting the bar stock (a) on the insertion column (13) during the process of the pushing plate (41) being driven by the pushing drive mechanism to approach the chuck (12), and the pushing plate (41) being capable of acting on the bar stock (a) and dismounting the bar stock (a) from the insertion column (13) during the process of the pushing plate (41) being driven by the pushing drive mechanism to move away from the chuck (12), the longitudinal direction being parallel to the axial direction of the insertion column (13).

2. The full-automatic bar stock lathe according to claim 1, characterized in that: The pushing plate (41) acts on the end of the bar stock (a) away from the chuck (12) when the pushing plate (41) is driven by the pushing drive mechanism to approach the chuck (12), and the pushing plate (41) acts on the end of the bar stock (a) close to the chuck (12) when the pushing plate (41) is driven by the pushing drive mechanism to move away from the chuck (12).

3. The full-automatic bar stock lathe according to claim 2, characterized in that: A gap (410) is formed on the pushing plate (41) for the insertion column (13) to pass through.

4. The full-automatic bar lathe according to any one of claims 1 to 3, characterized in that: A rack (50) for placing the bar stock (a) is further included, an outlet (51) is formed on the side of the rack (50) for the bar stock (a) to move out of the rack (50), and a bar stock pushing mechanism is further arranged on the rack (50) for pushing the bar stock (a) out of the outlet (51), the clamping jaw (31) in the receiving position is adjacent to the outlet (51) of the rack (50) and receives the bar stock (a) pushed out of the outlet (51).

5. The fully automatic bar-fed external cylindrical surface machine according to claim 4, characterized in that: The rack (50) is in the shape of a long strip and is arranged obliquely, the outlet (51) is formed on the side wall of the end of the rack (50) at a low position, and the bar stock pushing mechanism is correspondingly arranged at the end of the rack (50) at a low position.

6. The fully automatic bar-fed external cylindrical surface machine according to claim 4, characterized in that: The bar stock pushing mechanism includes a pushing cylinder (52) and a pushing member (521) capable of moving in a direction parallel to the axis of the bar stock (a) by the pushing cylinder (52).

7. The fully automatic bar-fed external cylindrical surface machine according to any one of claims 1 to 3, characterized in that: The receiving position is above the feeding position, the feeding driving mechanism (33) comprises a lifting cylinder, the clamping jaw (31) is connected with the power output end of the lifting cylinder, so as to be driven by the lifting cylinder to move upward or downward.

8. The full-automatic bar-fed external cylindrical surface machine according to any one of claims 1 to 3, characterized in that: Further comprising a sliding table device, which comprises a base (61), a first sliding table (62) reciprocally sliding along the longitudinal direction on the base (61) driven by a first driving mechanism, and a second sliding table (63) reciprocally sliding along the transverse direction on the first sliding table (62) driven by a second driving mechanism, the external cylindrical turning tool (20) and the pushing plate (41) are arranged on the second sliding table (63) and along the transverse direction, the transverse direction is perpendicular to the axis of the material rod (a), the external cylindrical turning tool (20) and the pushing device arranged on the second sliding table (63) are driven by the first driving mechanism to move along the longitudinal direction with the first sliding table (62), that is, the first driving mechanism constitutes the pushing driving mechanism of the pushing device.

9. The fully automatic bar-fed external cylindrical surface machine according to claim 8, characterized in that: Further comprising a material rod conveying belt (71) arranged on the second sliding table (63) for feeding the material rod to the material rod collecting area, the feeding end of the material rod conveying belt (71) is arranged adjacent to the pushing plate (41) for receiving the material rod (a) pushed down from the inserting column (13) by the pushing plate.

10. The full-automatic bar-fed external cylindrical surface machine according to any one of claims 1 to 3, characterized in that: Further comprising a blowing pipe (80) connected with an external air source, the gas outlet of the blowing pipe (80) is arranged adjacent to the chuck (12) and the gas outlet direction is towards the material rod (a) clamped on the chuck (12).

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